CN201277082Y - Thermo-electric generation type vehicle energy-saving emission-reducing device - Google Patents

Abstract

The thermoelectric power generation type automobile energy-saving and emission-reducing device relates to an automobile energy-saving and emission-reducing device, in particular to an energy-saving device which adopts semiconductor thermoelectric power generation to recycle waste heat energy of an automobile exhaust pipe. Provided is a thermoelectric power generation type automobile energy-saving emission reducer that utilizes semiconductor thermoelectric power generation technology to realize the recovery and utilization of automobile exhaust heat energy, which not only adapts to the high-temperature environment of automobile exhaust, but also has simple structure, high-efficiency and reliable power generation, and can effectively recover the heat energy of automobile exhaust. It is equipped with aluminum sheet, heat insulation material, heat sink, heat conduction material block, thermoelectric power generation module and thermocouple temperature detection jack. The aluminum sheet is wrapped in the upper part of the exhaust pipe, and the heat-conducting material block is attached to the lower part of the exhaust pipe. Fill in the gap between the thermoelectric power generation module and the heat sink.

Description

Thermoelectric power generation vehicle energy saving and emission reducer

technical field

The utility model relates to an automobile energy-saving and emission-reduction device, in particular to an energy-saving device which adopts semiconductor temperature difference power generation to recycle waste heat energy of an automobile exhaust pipe.

Background technique

At present, in the automobile fuel technology, only part of the energy generated by fuel combustion is used for automobile power, while most of it is lost into the atmosphere through hot exhaust emissions, which causes a large waste of fuel energy. If the heat contained in the exhaust gas can be recovered and used for power generation, the utilization rate of automobile fuel can be improved.

Although thermoelectric power generation can be used for the reuse of waste heat from automobile exhaust, the structure of the device is complicated due to the inability of conventional functional materials to withstand high temperatures, resulting in low power generation output efficiency and cumbersome installation and maintenance. Therefore, semiconductor thermoelectric power generation technology is used in automobile exhaust heat energy There are technical difficulties in recycling.

Contents of the invention

The purpose of this utility model is to provide a temperature difference power generation type automobile energy saving and reduction system which utilizes semiconductor temperature difference power generation technology to realize the heat energy recovery and utilization of automobile exhaust, which can not only adapt to the high temperature environment of automobile exhaust, but also has simple structure, efficient and reliable power generation, and can effectively recover the heat energy of automobile exhaust. sorter.

The utility model is provided with an aluminum sheet, a heat insulating material, a heat sink, a heat conducting material block, a thermoelectric power generation module and a thermocouple temperature detection jack. The aluminum sheet is wrapped in the upper part of the exhaust pipe, and the heat-conducting material block is attached to the lower part of the exhaust pipe. Fill in the gap between the thermoelectric power generation module and the heat sink.

Asbestos heat insulating material can be used as heat insulation material, and high heat conduction material block with good heat conduction performance can be used as heat conduction material block.

If it is connected to the car battery through a voltage-stabilizing charging circuit, it can realize the voltage-stabilizing charging of the car battery while overcoming the influence of the thermoelectric voltage fluctuation.

The thermoelectric power generation part of the utility model is in the form of a module. On the one hand, it can effectively prevent the failure of the traditional thermoelectric power generation method due to thermal expansion at high temperature, so that the temperature resistance of the device can reach 300 ° C, and it can work stably in the high temperature environment of automobile exhaust; on the other hand, it can According to different models and conditions, adjust the number of modules of the emission reducer, so as to conveniently adjust the output power of the emission reducer. In addition, an asbestos-filled heat insulation design is used between the high thermal conductivity material block and the heat sink, and for the space environment of the automobile exhaust pipe, the overall device adopts an appearance structure that matches the exhaust pipe. At the same time, the heat sink is designed and installed to use the natural wind to dissipate heat while the car is running, which further effectively improves the utilization rate of exhaust heat energy and ensures that the emission reducer has a stable temperature difference greater than 250°C under a simple heat dissipation device. In terms of circuit, aiming at the characteristics of large fluctuation range of thermoelectric output, a stable voltage charging circuit with wide input range is designed.

The utility model can efficiently apply the semiconductor temperature difference power generation technology to the recovery and utilization of the heat energy of the automobile exhaust, so as to achieve the purpose of improving the fuel utilization rate of the automobile and reducing the exhaust emission.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is a composition schematic diagram of a voltage stabilizing charging circuit according to an embodiment of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Referring to Fig. 1 , the utility model embodiment is provided with an aluminum sheet 1, an asbestos heat insulating material 3, a heat sink 4, a high thermal conductivity material block 5, a thermoelectric power generation module 6 and a thermocouple temperature detection jack 7. The cylindrical surface of the upper part of the exhaust pipe 2 is wrapped with the aluminum sheet 1, the lower part is attached to the high thermal conductivity material block 5, the bottom of the high thermal conductivity material block 5 is closely attached to the thermoelectric power generation module 6, and the thermoelectric power generation module 6 is tightly connected to the heat sink 4 Paste, asbestos thermal insulation material 3 is filled in the gap between the thermoelectric power generation module 6 and the heat sink 4, and the cold end and the hot end of the thermoelectric power generation module 6 are isolated by the asbestos thermal insulation material 3 to prevent the hot and cold ends from heat conduction between them. Thermocouple temperature detection jacks 7 are respectively provided on the heat sink 4 and the high thermal conductivity material block 5 . The aluminum sheet 1, the exhaust pipe 2, the high thermal conductivity material block 5, and the heat sink 4 are connected together by bolts, and the bolts are adjusted to maintain a pressure of about 4 MPa on both contact surfaces of the thermoelectric power generation module 6 . The upper end of the thermoelectric power generation module 6 is a hot end face, and the lower end is a cold end face, and the two ends form a temperature difference to realize power generation.

If it is connected to the car battery through a voltage-stabilizing charging circuit, it can realize the voltage-stabilizing charging of the car battery while overcoming the influence of the thermoelectric voltage fluctuation. The voltage-stabilizing charging circuit can be a common voltage-stabilizing charging circuit. Figure 2 shows a schematic diagram of a voltage-stabilizing charging circuit with a wide input range, in which the integrated circuit U1 is a common voltage-stabilizing chip.

Claims (2)

1. Thermoelectric power generation automobile energy saving and emission reducer, which is characterized in that it is equipped with aluminum sheet, heat insulation material, heat sink, heat conduction material block, thermoelectric power generation module and thermocouple temperature detection jack, and the aluminum sheet is wrapped on the exhaust pipe. In the lower half of the exhaust pipe, the heat-conducting material block is attached to the lower half of the exhaust pipe. The bottom of the heat-conducting material block is closely attached to the thermoelectric power generation module. in the gap between. 2. The thermoelectric power generation type automobile energy-saving and emission-reducing device as claimed in claim 1, wherein the thermal insulation material is asbestos thermal insulation material.

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