CN-122026748-A - Abnormal curved surface thermoelectric power generation device and application method thereof

Abstract

The invention belongs to the technical field of heat energy recovery and power generation, and discloses a special-shaped curved surface thermoelectric power generation device and a use method thereof, wherein the special-shaped curved surface thermoelectric power generation device comprises an inner side special-shaped curved surface substrate which is conformally attached with a heat source; the invention discloses a heat source integrated cooling flow passage, which comprises an outer special-shaped curved surface substrate, a thermoelectric generation module arranged on the substrate, and a non-invasive fixing mechanism for fixing the substrate on a heat source, wherein the thermoelectric generation module consists of a plurality of partitioned thermoelectric generation units which are adaptively adjusted according to the curvature of the substrate through flexible connectors.

Inventors

• LIANG CHAO
• ZHAO YUXUAN
• CHEN GUANGJIAO
• KANG YONGMING
• ZHU CUIJUAN
• Han Yahang
• Zhang Bihao
• LIU ZIHAO
• LIU RUNJIN

Assignees

• 北华大学

Dates

Publication Date

20260512

Application Date

20260413

Claims (7)

1. 1. A special-shaped curved surface thermoelectric power generation device is characterized by comprising an inner special-shaped curved surface substrate, an outer special-shaped curved surface substrate, a plurality of thermoelectric power generation modules and a non-invasive fixing mechanism, wherein the inner special-shaped curved surface substrate is used for being attached to the surface of a heat source, the outer special-shaped curved surface substrate is used for integrating a cooling runner, the thermoelectric power generation modules are arranged on the special-shaped curved surface substrate, and the non-invasive fixing mechanism is used for fixing the special-shaped curved surface substrate on the surface of a non-planar heat source.
2. 2. The profiled curved surface thermoelectric generation device of claim 1, wherein the non-invasive fixation mechanism is a magnetic attachment mechanism comprising a magnetic element disposed on the profiled curved surface substrate.
3. 3. The special-shaped curved surface thermoelectric generation device according to claim 1 or 2, wherein the thermoelectric generation module is composed of a plurality of partitioned thermoelectric generation units, and the thermoelectric generation units are electrically connected through flexible conductive connecting pieces.
4. 4. The special-shaped curved surface thermoelectric generation device according to claim 3, wherein the size, shape and arrangement density of the thermoelectric generation units are adaptively set according to curvatures of different areas of the special-shaped curved surface substrate.
5. 5. The profiled curved thermoelectric generation device of claim 1, further comprising a cooling flow channel integrated into the device, the cooling flow channel having an inlet and an outlet extending through the outer profiled curved substrate or device housing.
6. 6. The profiled curved surface thermoelectric generation device of claim 5, wherein the cooling flow channel is a biomimetic tree-shaped fractal flow channel.
7. 7. The method of using a profiled curved surface thermoelectric generation device as claimed in any one of claims 1 to 6 wherein the profiled curved surface thermoelectric generation device is directly attached to a non-planar heat source surface by a non-invasive fixing mechanism.

Description

Abnormal curved surface thermoelectric power generation device and application method thereof Technical Field The invention relates to the technical field of heat energy recovery and power generation, in particular to a thermoelectric power generation device, and especially relates to a special-shaped curved surface thermoelectric power generation device capable of being self-adaptively and closely attached to a heat source surface with a complex geometric shape and realizing non-invasive rapid installation and a use method thereof. Background Based on the Seebeck effect, the thermoelectric generation technology can convert waste heat energy discharged by an automobile exhaust pipe, an industrial flue and the like into electric energy, has great significance in improving the energy utilization efficiency and realizing energy conservation and emission reduction, and is one of research hot spot directions of the current clean energy technology. The Chinese patent with publication number CN220043252U discloses a thermoelectric power generation device which can utilize the waste heat of an exhaust pipe to generate power by arranging a heat conducting substrate, a thermoelectric power generation sheet and a radiator, and provides a basic waste heat recovery thought, however, the device has the following defects that the application of the device under complex working conditions is limited, and the prior art represented by the patent has obvious limitations when being applied to the actual complex working conditions of automobiles, ships and the like through analysis, and mainly shows the following three aspects: The heat-conducting substrate adopted by the device is of a flat plate or a simple arc-shaped rigid structure, and cannot be tightly attached to the surfaces of heat sources with multiple curved surfaces and irregular geometric shapes such as automobile exhaust pipe elbows and industrial complex pipelines, so that a large number of gaps exist between the device and the heat sources, the contact thermal resistance is large, the heat energy conduction efficiency is low, and the final power generation and waste heat recovery rate are severely restricted. The installation mode is strong in invasiveness, the original system is affected, the device and similar products are installed and fixed in a welding mode, a clamp fastening mode or a bolt perforation mode and the like, the 'invasive' installation is complex in construction, the structural integrity of an original heat source pipeline is damaged, the back pressure of the system is possibly increased, the original performance of an engine or industrial equipment is affected, the disassembly and maintenance are difficult, and the application flexibility is poor. The device has the advantages of insufficient adaptability of thermal management and unstable power generation, namely, the response of a static heat dissipation system of the device is slow and the stability of the temperature difference at two sides of a thermoelectric generation sheet is difficult to maintain in the face of severe heat source temperature fluctuation caused by dynamic working conditions such as vehicle acceleration, deceleration and the like, the fluctuation of output voltage and power is directly caused, and the service life of the device is easily influenced due to thermal stress fatigue under long-term operation. In order to overcome the defects, the invention provides a special-shaped curved surface thermoelectric power generation device and a use method thereof. Disclosure of Invention The invention provides a special-shaped curved surface thermoelectric power generation device and a use method thereof, aiming at solving the problems of insufficient power generation efficiency and practicality caused by the fact that the conventional thermoelectric power generation device is not tightly attached to a complex geometric heat source, is provided with damage and is low in thermal management. In order to solve the problems, the invention adopts the following technical scheme: A special-shaped curved surface thermoelectric power generation device comprises an inner special-shaped curved surface substrate, an outer special-shaped curved surface substrate, a plurality of thermoelectric power generation modules and a non-invasive fixing mechanism, wherein the inner special-shaped curved surface substrate is used for being attached to the surface of a heat source, the outer special-shaped curved surface substrate is used for integrating a cooling flow channel, the thermoelectric power generation modules are arranged on the special-shaped curved surface substrate, and the non-invasive fixing mechanism is used for fixing the special-shaped curved surface substrate on the surface of a non-planar heat source. Preferably, the non-invasive fixing mechanism is a magnetic attaching mechanism and comprises a magnetic piece arranged on the special-shaped curved substrate. Preferably, the thermoel