Water channel unit of TPAK module and water channel module of TPAK module

Abstract

The present invention relates to the technical field of power modules of motor controllers. Disclosed is a water channel unit of a TPAK module, comprising a module water inlet, a module water outlet, and a water channel base body. An annular water channel is provided in the water channel base body, and the annular water channel surrounds the periphery of the TPAK module. A water flow enters the annular water channel through the module water inlet and then flows out through the module water outlet. Further disclosed is a water channel module of a TPAK module, comprising a multi-port inlet and outlet water pipe and a plurality of water channel units, the multi-port inlet and outlet water pipe and the plurality of water channel units being in communication. A water flow flows in from the multi-port inlet and outlet water pipe and is distributed to the module water inlets of the plurality of water channel units, then enters the annular water channels through the module water inlets, then flows to the multi-port inlet and outlet water pipe through the module water outlets, and finally converges in and flows out through the multi-port inlet and outlet water pipe. The present invention can dissipate heat around the TPAK module, greatly improve the heat dissipation efficiency of the water channel and the power output efficiency of the TPAK module, can recover waste heat as usable electrical energy, has a high degree of modularization, and is convenient to assemble and disassemble.

Description

A waterway unit and module of a TPAK module Technical Field

[0001] This invention relates to the field of motor controller power module technology, and in particular to a water channel unit and module of a TPAK module. Background Technology

[0002] The TPAK module employs a single-switch module design that falls between single-tube and conventional modules. This design combines the flexibility of a single-tube module with the performance of a conventional module. To fully utilize the power output capability and improve power output efficiency, the heat dissipation design of the TPAK module has always been a core design focus for enterprises. A conventional heat dissipation design involves connecting the TPAK modules in parallel to one side of a heat sink, with the module base plate welded to the heat sink. Simultaneously, cooling channels are located on the back side of the heat sink to dissipate most of the TPAK's heat.

[0003] The disadvantages of the existing technical solution are as follows:

[0004] An extra heat sink is added between the TPAK module and the water channel. Even if the module base plate and the heat sink are firmly welded together, the microscopic air gap will cause local thermal resistance. This will not be able to fully utilize the heat dissipation capacity of the water channel, and the module power output will be limited.

[0005] PAK modules generate a large amount of heat during operation, and this waste heat cannot be effectively utilized, resulting in some energy loss.

[0006] Therefore, this application designs a water channel unit and module for a TPAK module, aiming to solve at least one of the above-mentioned defects. Summary of the Invention

[0007] In view of the above-mentioned shortcomings, the present invention provides a water channel unit and module for a TPAK module, which can dissipate heat around the TPAK module, greatly improve the heat dissipation efficiency of the water channel and the power output efficiency of the TPAK module, can recover waste heat into usable electrical energy, has a high degree of modularity, and is easy to disassemble and assemble.

[0008] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0009] A water channel unit for a TPAK module includes a module inlet, a module outlet, and a water channel base. The water channel base has an annular water channel surrounding the TPAK module. Water flows into the annular water channel through the module inlet and then flows out through the module outlet.

[0010] According to one aspect of the present invention, the waterway substrate is further provided with a plurality of metal bodies, which are made of different metal materials and are inserted at positions with different temperature gradients within the waterway substrate.

[0011] According to one aspect of the present invention, the waterway substrate is further provided with a module limiting groove and a plurality of limiting grooves, the module limiting groove being used to insert a TPAK module, the plurality of limiting grooves being disposed at positions with different temperature gradients within the waterway substrate, and the metal body being inserted into the limiting groove.

[0012] According to one aspect of the present invention, the metal body is provided with a fixed terminal and an electrical connection terminal, the fixed terminal being used to fix with a limiting groove, and the electrical connection terminal being used to connect with an electrical circuit.

[0013] According to one aspect of the present invention, there are four limiting grooves and four metal bodies, the four limiting grooves are respectively disposed around the module limiting groove, and there is a temperature difference between two adjacent metal bodies.

[0014] According to one aspect of the invention, the waterway substrate is waist-shaped like a racetrack, the annular waterway is tooth-shaped or waist-shaped like a racetrack, and the metal body is strip-shaped and flat.

[0015] According to one aspect of the present invention, it further includes an inlet module and an outlet module, which are respectively connected to both ends of the waterway base. The inlet of the module is provided on the inlet module, and the outlet of the module is provided on the outlet module.

[0016] A water channel module for a TPAK module includes multiple inlet and outlet water pipes and several water channel units connected to each other. Each water channel unit includes a module inlet, a module outlet, and a water channel base. An annular water channel is provided in the water channel base, and the annular water channel surrounds the TPAK module. Water flows in from the multiple inlet and outlet water pipes and is divided to the module inlets of the several water channel units. Then, it enters the annular water channel through the module inlet and then flows back to the multiple inlet and outlet water pipes through the module outlet. Finally, the water flows out through the multiple inlet and outlet water pipes.

[0017] According to one aspect of the present invention, the water channel substrate is further provided with a plurality of metal bodies, which are made of different metal materials and are inserted at positions with different temperature gradients within the water channel substrate; the water channel module further includes a PCBA board, which is connected to the metal bodies of the plurality of water channel units and is used to supply power to external electrical equipment.

[0018] According to one aspect of the present invention, the multi-port water inlet and outlet pipe includes a main waterway inlet, a plurality of branch waterway inlets, a plurality of branch waterway outlets, and a main waterway outlet. The main waterway inlets are connected to the plurality of branch waterway inlets, the plurality of branch waterway inlets are connected to a plurality of module inlets, the plurality of branch waterway outlets are connected to a plurality of module outlets, and the main waterway outlet is connected to the plurality of branch waterway outlets.

[0019] Advantages of this invention: Compared to the traditional TPAK module heat dissipation design with a single-sided welded heat sink and a heat dissipation channel on the back, this invention features an innovative waist-shaped racetrack-like water channel substrate. The TPAK module is inserted into the center of this substrate, allowing for heat dissipation from all sides, resulting in higher heat dissipation efficiency and improved power output efficiency. By creating four limiting grooves on the inner circumference of the water channel substrate and welding them to a flat metal body, the flat metal bodies on both sides of the water channel substrate, located at different temperature gradients, generate a potential difference based on the first thermoelectric effect. When these flat metal bodies are connected to a circuit loop, a current is generated. After special internal circuit processing, this current can power some electrical equipment. Thus, this invention effectively utilizes the temperature gradient between the TPAK module and the water channel to recover waste heat into usable electrical energy, improving energy utilization. This invention features a high degree of modularity, employing a modular design that facilitates disassembly and assembly, significantly improves the heat dissipation efficiency of the water channel, greatly enhances the power output efficiency of the TPAK module, and fully utilizes thermoelectric power generation, thereby increasing the conversion rate of waste heat into electrical energy. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a three-dimensional structural diagram of the waterway unit described in this invention;

[0022] Figure 2 is a side cross-sectional view of the waterway unit described in this invention;

[0023] Figure 3 is a schematic diagram of the top side cross section of the waterway unit described in this invention;

[0024] Figure 4 is a three-dimensional structural diagram of the waterway substrate described in this invention;

[0025] Figure 5 is a three-dimensional structural diagram of the metal body described in this invention;

[0026] Figure 6 is a three-dimensional structural schematic diagram of the waterway module of the present invention;

[0027] Figure 7 is a three-dimensional structural diagram of the multi-port inlet and outlet water pipe of the present invention.

[0028] The names corresponding to the serial numbers in the diagram are as follows:

[0029] 1. Module inlet; 2. Module outlet; 3. Inlet module; 4. Outlet module; 5. Waterway base; 6. Circular waterway; 7. TPAK module; 8. Metal body; 81. Fixed terminal; 82. Electrical connection terminal; 9. Module limiting slot; 10. PCBA board; 11. Limiting slot 1; 12. Limiting slot 2; 13. Limiting slot 3; 14. Limiting slot 4; 15. Multi-port inlet / outlet pipe; 16. Main waterway inlet; 17. Branch waterway inlet; 18. Branch waterway outlet; 19. Main waterway outlet. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] Example 1

[0032] As shown in Figures 1-5, a water channel unit for a TPAK module 7 is used for heat dissipation. This water channel unit includes a module inlet 1, a module outlet 2, an inlet module 3, an outlet module 4, and a water channel base 5. The inlet module 3 and outlet module 4 are respectively connected to both ends of the water channel base 5. The module inlet 1 is located on the inlet module 3, and the module outlet 2 is located on the outlet module 4. The water channel base 5 is shaped like a waist-shaped racetrack, and the TPAK module 7 is inserted at the center of the water channel base 5. An annular water channel 6 is provided inside the water channel base 5. The annular water channel 6 is toothed or waist-shaped, surrounding the TPAK module 7, and is connected to the module inlet 1 of the inlet module 3 and the module outlet 2 of the outlet module 4. Water flows through the module inlet 1 into the annular water channel 6 to dissipate heat around the TPAK module 7, and then flows out through the module outlet 2.

[0033] In this embodiment, a module limiting groove 9 is provided in the center of the waterway base 5. It is a waist-shaped groove or a square groove for inserting the TPAK module 7. The structural shape of the module limiting groove 9 is adapted to the structural shape of the TPAK module 7.

[0034] In this embodiment, the water inlet module 3 is located at the upper end of the water channel base 5 and the water outlet module 4 is located at the lower end of the water channel base 5; or, the water inlet module 3 is located at the lower end of the water channel base 5 and the water outlet module 4 is located at the upper end of the water channel base 5; the water inlet module 3 and the water outlet module 4 can be a symmetrical structure.

[0035] The beneficial effects of this embodiment are as follows: Compared with the traditional heat dissipation design of TPAK module 7 with a single-sided welded heat sink and heat dissipation channels on the back side, the present invention designs an innovative waist-shaped racetrack-shaped water channel base 5, in which the TPAK module 7 is inserted into the center of the waist-shaped racetrack-shaped water channel base 5. This allows for heat dissipation from all sides of the TPAK module 7, resulting in higher heat dissipation efficiency and thus improving the power output efficiency of the TPAK module 7.

[0036] Example 2

[0037] As shown in Figures 1-5, a water channel unit for a TPAK module is used for heat dissipation and energy recovery of the TPAK module 7, solving the problem of limited power output of the TPAK module 7 caused by additional thermal resistance, and also solving the problem that the waste heat generated by the TPAK module 7 cannot be effectively converted into usable energy. This water channel unit includes a module inlet 1, a module outlet 2, an inlet module 3, an outlet module 4, a water channel base 5, and several metal bodies 8. The inlet module 3 and the outlet module 4 are respectively connected to both ends of the water channel base 5; the module inlet 1 is located on the inlet module 3; the module outlet 2 is located on the outlet module 4. The water channel base 5 is waist-shaped like a racetrack, and the TPAK module 7 is inserted in the center of the water channel base 5. An annular water channel 6 is provided inside the water channel base 5; the annular water channel 6 is tooth-shaped or waist-shaped like a racetrack, and the annular water channel 6 surrounds the TPAK module 7. The annular water channel 6 is connected to the module inlet 1 of the inlet module 3 and the module outlet 2 of the outlet module 4. The metal body 8 is flat and strip-shaped. Several metal bodies 8 are inserted at different positions within the water channel base 5, resulting in temperature differences between the metal bodies 8 at different positions. The metal bodies 8 and the water channel base 5 are metal structures made of two different materials. Water flows into the annular water channel 6 through the module inlet 1 to dissipate heat around the TPAK module 7, and then flows out through the module outlet 2. Since there are two metal materials in the annular water channel 6 (the metal material of the water channel base 5 and the metal material of the metal bodies 8 welded to the water channel base 5), according to the first thermoelectric effect, the temperature gradient of the metal materials can generate a potential difference. By connecting these two metal materials to the electrical circuit, the potential difference generates current, which can power some electrical equipment.

[0038] In this embodiment, a module limiting groove 9, which is either waist-shaped or square, is provided in the center of the water channel base 5 for inserting the TPAK module 7. The structural shape of the module limiting groove 9 is adapted to the structural shape of the TPAK module 7. Several limiting grooves are also provided in the water channel base 5, and the limiting grooves are located at positions with different temperature gradients within the water channel base 5. The metal body 8 is inserted into the limiting groove. The bottom and top ends of the metal body 8 are respectively provided with a fixed terminal 81 and an electrical connection terminal 82, wherein the fixed terminal 81 is welded and fixed to the limiting groove, and the electrical connection terminal 82 is used to connect to the power circuit and is welded and fixed to the PCBA board 10 (printed circuit board assembly).

[0039] In this embodiment, there are four limiting grooves and four metal bodies 8. The quantity and structural shape of the two are adapted to each other. The limiting grooves are U-shaped grooves or rectangular grooves. The four limiting grooves are respectively arranged around the module limiting groove 9, and there is a temperature difference between two adjacent metal bodies 8. The four limiting slots are arranged in clockwise or counterclockwise order as limiting slot 11, limiting slot 22, limiting slot 33, and limiting slot 44. Limiting slot 11 and limiting slot 33 are positioned opposite each other and close to the two sides of TPAK module 7, while limiting slot 22 and limiting slot 44 are positioned opposite each other and slightly away from the other two sides of TPAK module 7. The four metal bodies 8 are arranged in clockwise or counterclockwise order as metal body 8, metal body 8, metal body 8, and metal body 4. Metal body 8 and metal body 3 are positioned opposite each other and close to the two sides of TPAK module 7, while metal body 2 and metal body 4 are positioned opposite each other and slightly away from the other two sides of TPAK module 7. The four metal bodies 8 are fixed in the four limiting slots by welding methods such as laser welding. When the TPAK module 7 is working, on the one hand, the water channel dissipates heat from the TPAK module 7, and on the other hand, there is a temperature difference between the first metal body 8 on the first limiting slot 11 and the second metal body 8 on the second limiting slot 12. Similarly, there is also a temperature difference between the third metal body 8 on the third limiting slot 13 and the fourth metal body 8 on the fourth limiting slot 14.

[0040] In this embodiment, the water inlet module 3 is located at the upper end of the water channel base 5 and the water outlet module 4 is located at the lower end of the water channel base 5; or, the water inlet module 3 is located at the lower end of the water channel base 5 and the water outlet module 4 is located at the upper end of the water channel base 5.

[0041] The beneficial effects of this embodiment are as follows:

[0042] Compared to the traditional TPAK module 7 heat dissipation design with a single-sided welded heat sink and heat dissipation channels on the back side, this invention designs an innovative waist-shaped racetrack-shaped water channel base 5. The TPAK module 7 is inserted in the center of the waist-shaped racetrack-shaped water channel base 5, which can dissipate heat from all sides of the TPAK module 7, resulting in higher heat dissipation efficiency and thus improving the power output efficiency of the TPAK module 7.

[0043] By creating four limiting grooves on the inner circumference of the waterway base 5 and welding them to the flat metal body 8, the flat metal bodies 8 located on both sides of the waterway base 5 with different temperature gradients will generate a potential difference using the first thermoelectric effect principle. When the flat metal bodies 8 on both sides are connected to the circuit loop, a current will be generated. After special internal circuit processing, this current can power some electrical equipment. In this way, the present invention can make full use of the waste heat of TPAK and effectively utilize the temperature difference gradient between TPAK module 7 and waterway to recover waste heat into usable electrical energy, thereby improving energy utilization efficiency.

[0044] Example 3

[0045] As shown in Figures 1-7, a water channel module for TPAK module 7 is used for heat dissipation. This water channel module includes multiple inlet and outlet pipes 15 and several water channel units connected together. Each water channel unit contains one TPAK module 7. Each water channel unit includes a module inlet 1, a module outlet 2, an inlet module 3, an outlet module 4, and a water channel base 5. The inlet module 3 and outlet module 4 are connected to both ends of the water channel base 5. The module inlet 1 is located on the inlet module 3, and the module outlet 2 is located on the outlet module 4. The water channel base 5 is shaped like a waist-shaped racetrack, and the TPAK module 7 is inserted at the center of the water channel base 5. An annular water channel 6 is provided inside the water channel base 5. The annular water channel 6 is toothed or waist-shaped like a racetrack, surrounding the TPAK module 7. The annular water channel 6 is connected to the module inlet 1 of the inlet module 3 and the module outlet 2 of the outlet module 4. The multi-channel water inlet / outlet pipe 15 includes an integrally formed main waterway inlet 16, several branch waterway inlets 17, several branch waterway outlets 18, and a main waterway outlet 19. The main waterway inlet 16 is connected to the branch waterway inlets 17, the branch waterway inlets 17 are connected to each of the module inlets 1, the branch waterway outlets 18 are connected to each of the module outlets 2, and the main waterway outlet 19 is connected to each of the branch waterway outlets 18. Water flows into the multi-channel water inlet / outlet pipe 15 and is distributed to the module inlets 1 of the several waterway units. It then enters the annular waterway 6 through the module inlets 1 to dissipate heat around the TPAK module 7. The water then flows back to the multi-channel water inlet / outlet pipe 15 through the module outlets 2, and finally merges and flows out through the multi-channel water inlet / outlet pipe 15.

[0046] In this embodiment, a module limiting groove 9 is provided in the center of the waterway base 5. It is a waist-shaped groove or a square groove for inserting the TPAK module 7. The structural shape of the module limiting groove 9 is adapted to the structural shape of the TPAK module 7.

[0047] In this embodiment, the water inlet module 3 is located at the upper end of the water channel base 5 and the water outlet module 4 is located at the lower end of the water channel base 5; or, the water inlet module 3 is located at the lower end of the water channel base 5 and the water outlet module 4 is located at the upper end of the water channel base 5; the water inlet module 3 and the water outlet module 4 can be a symmetrical structure.

[0048] In this embodiment, a water channel module includes a set of multi-port inlet / outlet water pipes 15 and six water channel units. The set of multi-port inlet / outlet water pipes 15 includes one main water channel inlet 16, six branch water channel inlets 17, six branch water channel outlets 18, and one main water channel outlet 19. Water flows in from the main water channel inlet 16, and is branched through the six branch water channel inlets 17 to the inner water channels of the six water channel units, that is, the toothed water channels in the water channel base 5 shown in Figure 4, thereby providing heat dissipation for the TPAK module 7 from all sides (this can greatly improve the heat dissipation efficiency of the water channel and greatly improve the power output efficiency of the TPAK module 7). Then, it flows through the module outlet 2 to the multi-port inlet / outlet water pipes 15, that is, it merges through the six branch water channel outlets 18 and finally flows out through the main water channel outlet 19.

[0049] The beneficial effects of this embodiment are as follows:

[0050] 1. Compared with the traditional heat dissipation design of TPAK module 7 with a single-sided welded heat sink and heat dissipation channels on the back side, this invention designs an innovative waist-shaped racetrack-shaped water channel base 5, in which the TPAK module 7 is inserted into the center of the waist-shaped racetrack-shaped water channel base 5. This allows for heat dissipation from all sides of the TPAK module 7, resulting in higher heat dissipation efficiency and thus improving the power output efficiency of the TPAK module 7.

[0051] 2. The present invention adopts a modular design, which is not only easy to disassemble and assemble, but also greatly improves the heat dissipation efficiency of the water channel and greatly improves the power output efficiency of the TPAK module 7.

[0052] Example 4

[0053] As shown in Figures 1-7, a water channel module for TPAK module 7 is used for heat dissipation and energy recovery of TPAK module 7, solving the problem of limited power output of TPAK module 7 caused by additional thermal resistance, and also solving the problem that the waste heat generated by TPAK module 7 cannot be effectively converted into usable energy; the water channel module includes multiple inlet and outlet water pipes 15, several water channel units, and PCBA board 10, wherein the multiple inlet and outlet water pipes 15 are respectively connected to several water channel units, and a TPAK module 7 is installed in each water channel unit. The waterway unit includes a module inlet 1, a module outlet 2, an inlet module 3, an outlet module 4, a waterway base 5, and several metal bodies 8. The inlet module 3 and the outlet module 4 are connected to both ends of the waterway base 5, the module inlet 1 is located on the inlet module 3, and the module outlet 2 is located on the outlet module 4. The waterway base 5 is shaped like a waist-shaped racetrack, and the TPAK module 7 is inserted in the center of the waterway base 5. An annular waterway 6 is provided inside the waterway base 5. The annular waterway 6 is toothed or waist-shaped like a racetrack and surrounds the TPAK module 7. The annular waterway 6 is connected to the module inlet 1 of the inlet module 3 and the module outlet 2 of the outlet module 4. The metal bodies 8 are flat and strip-shaped. Several metal bodies 8 are inserted in different positions inside the waterway base 5, and there will be temperature differences between the metal bodies 8 in different positions. The metal bodies 8 and the waterway base 5 are metal structures made of two different materials. The multi-channel water inlet / outlet pipe 15 includes an integrally formed main waterway inlet 16, several branch waterway inlets 17, several branch waterway outlets 18, and a main waterway outlet 19. The main waterway inlet 16 is connected to the several branch waterway inlets 17, each branch waterway inlet 17 is connected to a specific module inlet 1, each branch waterway outlet 18 is connected to a specific module outlet 2, and the main waterway outlet 19 is connected to the several branch waterway outlets 18. The PCBA board 10 is connected to the metal body 8 of several waterway units, and the PCBA board 10 is used to supply power to external electrical equipment.

[0054] Water flows into and is branched from the multi-port inlet / outlet pipe 15 to the module inlet 1 of several water channel units. It then enters the annular water channel 6 through the module inlet 1 to dissipate heat around the TPAK module 7. The water then flows through the module outlet 2 back to the multi-port inlet / outlet pipe 15 and finally merges and flows out through the multi-port inlet / outlet pipe 15. While dissipating heat, since there are two kinds of metal materials in the annular water channel 6 (the metal material of the water channel base 5 and the metal material of the metal body 8 welded to the water channel base 5), as can be seen from the first thermoelectric effect, the temperature gradient of the metal materials can generate a potential difference. When the temperature difference of several metal bodies 8 is converted into a potential difference, and the PCBA board 10 connected to several metal bodies 8 is connected to external electrical equipment, the potential difference will form a current to power some low-voltage electrical equipment.

[0055] In this embodiment, a module limiting groove 9, which is either waist-shaped or square, is provided in the center of the water channel base 5 for inserting the TPAK module 7. The structural shape of the module limiting groove 9 is adapted to the structural shape of the TPAK module 7. Several limiting grooves are also provided in the water channel base 5, and the limiting grooves are located at positions with different temperature gradients within the water channel base 5. The metal body 8 is inserted into the limiting groove. The bottom and top ends of the metal body 8 are respectively provided with a fixed terminal 81 and an electrical connection terminal 82, wherein the fixed terminal 81 is welded and fixed to the limiting groove, and the electrical connection terminal 82 is used to connect to the power circuit and is welded and fixed to the PCBA board 10 (printed circuit board assembly).

[0056] In this embodiment, a group of waterway units, or a waterway base 5, contains four limiting grooves and four metal bodies 8. The number and structural shape of the limiting grooves and metal bodies 8 are adapted to each other. The limiting grooves are U-shaped or rectangular. The four limiting grooves are respectively located around the module limiting groove 9, and there is a temperature difference between two adjacent metal bodies 8. The four limiting grooves can be divided into limiting groove 11, limiting groove 12, limiting groove 13, and limiting groove 14 in a clockwise or counterclockwise order. The limiting groove 11 and limiting groove 13 are arranged opposite each other and closely attached to the TPAK module 7. On both sides, the second limiting groove 12 and the fourth limiting groove 14 are positioned opposite each other and slightly away from each other on the other two sides of the TPAK module 7. The four metal bodies 8 can be divided into metal body 1, metal body 2, metal body 3, and metal body 4 in clockwise or counterclockwise order. Metal body 1 and metal body 3 are positioned opposite each other and close to the two sides of the TPAK module 7, while metal body 2 and metal body 4 are positioned opposite each other and slightly away from each other on the other two sides of the TPAK module 7. The four metal bodies 8 are fixed in the four limiting grooves respectively by welding methods such as laser welding. When the TPAK module 7 is working, on the one hand, the water channel dissipates heat from the TPAK module 7, and on the other hand, there is a temperature difference between metal body 1 on the first limiting groove 11 and metal body 2 on the second limiting groove 12. Similarly, there is also a temperature difference between metal body 3 on the third limiting groove 13 and metal body 4 on the fourth limiting groove 14.

[0057] In this embodiment, the water inlet module 3 is located at the upper end of the water channel base 5 and the water outlet module 4 is located at the lower end of the water channel base 5; or, the water inlet module 3 is located at the lower end of the water channel base 5 and the water outlet module 4 is located at the upper end of the water channel base 5.

[0058] In this embodiment, a water channel module includes a set of multi-port inlet / outlet water pipes 15 and six water channel units. The set of multi-port inlet / outlet water pipes 15 includes one main water channel inlet 16, six branch water channel inlets 17, six branch water channel outlets 18, and one main water channel outlet 19. Water flows in from the main water channel inlet 16, and is branched through the six branch water channel inlets 17 to the inner water channels of the six water channel units, that is, the toothed water channels in the water channel base 5 shown in Figure 4, thereby providing heat dissipation for the TPAK module 7 from all sides (this can greatly improve the heat dissipation efficiency of the water channel and greatly improve the power output efficiency of the TPAK module 7). Then, it flows through the module outlet 2 to the multi-port inlet / outlet water pipes 15, that is, it merges through the six branch water channel outlets 18 and finally flows out through the main water channel outlet 19.

[0059] In this embodiment, the four electrical connection terminals 82 on each water channel unit are welded and fixed to the PCBA board 10. Since there is a temperature difference between the first metal body 8 on the first limiting groove 11 and the second metal body 8 on the second limiting groove 12, and similarly, there is a temperature difference between the third metal body 8 on the third limiting groove 13 and the fourth metal body 8 on the fourth limiting groove 14; these two temperature differences can act as two paths. Once the electrical connection terminals 82 on the metal body 8 are welded and fixed to the PCBA board 10, according to the first thermoelectric effect, the temperature difference between these two paths can be converted into a potential difference. When the PCBA board 10 is connected to external electrical equipment, the potential difference will generate current to power some low-voltage electrical equipment.

[0060] The beneficial effects of this embodiment are as follows:

[0061] 1. Compared with the traditional heat dissipation design of TPAK module 7 with a single-sided welded heat sink and heat dissipation channels on the back side, this invention designs an innovative waist-shaped racetrack-shaped water channel base 5, in which the TPAK module 7 is inserted into the center of the waist-shaped racetrack-shaped water channel base 5. This allows for heat dissipation from all sides of the TPAK module 7, resulting in higher heat dissipation efficiency and thus improving the power output efficiency of the TPAK module 7.

[0062] 2. By opening four limiting grooves on the inner circumference of the waterway base 5 and welding them to the flat metal body 8, the flat metal bodies 8 located on both sides of the waterway base 5 with different temperature gradients will generate a potential difference using the first thermoelectric effect principle. When the flat metal bodies 8 on both sides are connected to the circuit loop, a current will be generated. After special internal circuit processing, this current can power some electrical equipment. In this way, the present invention can make full use of the waste heat of TPAK and effectively utilize the temperature difference gradient between TPAK module 7 and waterway to recover waste heat into usable electrical energy, thereby improving energy utilization efficiency.

[0063] 3. The present invention adopts a modular design, which is not only easy to disassemble and assemble, but also greatly improves the heat dissipation efficiency of the water channel, greatly improves the power output efficiency of TPAK module 7, and can make full use of thermoelectric power generation, improving the conversion rate of waste heat into electrical energy.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations, combinations, or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A water channel unit for a TPAK module, comprising a module inlet (1), a module outlet (2), and a water channel base (5), characterized in that, The water channel base (5) is provided with an annular water channel (6), which surrounds the TPAK module (7); water flows into the annular water channel (6) through the module inlet (1) and then flows out through the module outlet (2).

2. The waterway unit according to claim 1, characterized in that, The waterway base (5) is also provided with several metal bodies (8), which are made of different metal materials. The metal bodies (8) are inserted in the waterway base (5) at different temperature gradient positions.

3. The waterway unit according to claim 2, characterized in that, The waterway base (5) is also provided with a module limiting groove (9) and several limiting grooves. The module limiting groove (9) is used to insert the TPAK module (7). The several limiting grooves are located at different temperature gradients in the waterway base (5). The metal body (8) is inserted into the limiting groove.

4. The waterway unit according to claim 3, characterized in that, The metal body (8) is provided with a fixed terminal (81) and an electrical connection terminal (82). The fixed terminal (81) is used to fix with the limiting groove, and the electrical connection terminal (82) is used to connect with the power circuit.

5. The waterway unit according to claim 3, characterized in that, There are four limiting grooves and four metal bodies (8). The four limiting grooves are respectively located around the module limiting groove (9). There is a temperature difference between two adjacent metal bodies (8).

6. The waterway unit according to any one of claims 2 to 5, characterized in that, The waterway base (5) is waist-shaped like a racetrack, the annular waterway (6) is tooth-shaped or waist-shaped like a racetrack, and the metal body (8) is strip-shaped and flat.

7. The waterway unit according to claim 6, characterized in that, It also includes an inlet module (3) and an outlet module (4), which are respectively connected to both ends of the waterway base (5). The inlet (1) of the module is located on the inlet module (3), and the outlet (2) of the module is located on the outlet module (4).

8. A waterway module for a TPAK module, characterized in that, It includes a multi-port inlet / outlet water pipe (15) and several waterway units, which are connected. The waterway unit includes a module inlet (1), a module outlet (2), and a waterway base (5). The waterway base (5) is provided with an annular waterway (6), which surrounds the TPAK module (7). Water flows in from the multi-port inlet / outlet water pipe (15) and is diverted to the module inlet (1) of the several waterway units. Then, it enters the annular waterway (6) through the module inlet (1) and flows to the multi-port inlet / outlet water pipe (15) through the module outlet (2). Finally, it merges and flows out through the multi-port inlet / outlet water pipe (15).

9. The waterway module according to claim 8, characterized in that, The waterway base (5) is also provided with several metal bodies (8), which are made of different metal materials. The several metal bodies (8) are installed in the waterway base (5) at positions with different temperature gradients. The waterway module also includes a PCBA board (10), which is connected to the metal bodies (8) of several waterway units. The PCBA board (10) is used to supply power to external electrical equipment.

10. The waterway module according to claim 8, characterized in that, The multi-port inlet and outlet pipe (15) includes a main waterway inlet (16), several branch waterway inlets (17), several branch waterway outlets (18), and a main waterway outlet (19). The main waterway inlet (16) is connected to several branch waterway inlets (17), the several branch waterway inlets (17) are connected to several module inlets (1), the several branch waterway outlets (18) are connected to several module outlets (2), and the main waterway outlet (19) is connected to several branch waterway outlets (18).

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