CN104052335A - Using automobile waste gas semiconductor thermoelectric power generation device - Google Patents

Abstract

The invention provides a semiconductor temperature difference power generation device using automobile exhaust gas, and belongs to the technical field of automobile motor elements. The semiconductor temperature difference power generation device is composed of a temperature difference power generator and a voltage stabilizing controller. The semiconductor temperature difference power generation device is characterized in that the temperature difference power generator is composed of an exhaust gas passageway box, a semiconductor thermoelectric module and a cooling water tank; the semiconductor thermoelectric module is installed between the exhaust gas passageway box and the cooling water tank and is composed of a P-type semiconductor and an N-type semiconductor, one end of the semiconductor thermoelectric module is arranged in a high-temperature heat source, the other end of the semiconductor thermoelectric module is arranged in a low-temperature cold source, the potential difference is formed in a low-temperature end open circuit through internal holes of the semiconductors and diffusion of electrons, output voltage passes the voltage stabilizing controller and then supplies electric energy to automobile electric equipment or charges a storage battery. Heat energy of high-temperature exhaust gas exhausted by an automobile engine can be directly converted into electric energy though the semiconductor temperature difference power generation device, energy is saved, emission is reduced, and the semiconductor temperature difference power generation device is free of noise, pollution, mechanical moving parts and chemical reactions, small in size, light in mass and long in service life.

Description

Using automobile waste gas semiconductor thermoelectric power generation device

technical field

The invention provides a semiconductor thermoelectric power generation device utilizing automobile waste gas, which belongs to the technical field of automobile motors and electrical appliances.

Background technique

The automobile industry is a symbol of modern industry and a leading industry in the development of the national economy. However, the massive consumption of fuel and the lack of oil resources in our country have become problems that cannot be ignored in my country's economic development. At present, the effective utilization rate of fuel in automobiles is low. 30% to 45% of the generated energy is directly discharged into the atmosphere along with the high-temperature and high-pressure exhaust gas, which not only causes an extreme waste of energy, but also pollutes the environment. Automobile energy saving and emission reduction have great practical significance.

Contents of the invention

The purpose of the present invention is to provide a method that can overcome the above-mentioned defects, use the heat energy carried by the exhaust gas of the automobile, convert the heat energy into electric energy through a thermoelectric power generation device, charge the battery, and utilize the heat energy of the exhaust gas of the automobile to the greatest extent without additionally increasing fuel consumption. The technical content of the automobile waste gas semiconductor thermoelectric power generation device is as follows:

The automobile exhaust gas semiconductor thermoelectric power generation device is composed of a thermoelectric generator and a voltage regulator controller. It is characterized in that: the thermoelectric generator is composed of an exhaust gas channel box, a semiconductor thermoelectric module, and a cooling water tank. The semiconductor thermoelectric module is installed in the exhaust gas channel box and the cooling water tank. Between them, the exhaust gas passage box stores the high-temperature exhaust gas heat discharged by the engine, and provides high-temperature heat source for the semiconductor thermoelectric module. The water in the cooling water tank is controlled by the radiator to maintain a low temperature, and provides a low-temperature cold source for the semiconductor thermoelectric module. Composed of P-type semiconductor and N-type semiconductor, one end of the P-type semiconductor placed in the high-temperature heat source is connected with one end of the N-type semiconductor placed in the high-temperature heat source with a conductor, and the other end of the P-type semiconductor placed in the low-temperature cold source One end is the positive pole of the thermoelectric generator, the other end of the N-type semiconductor placed in the low-temperature cold source is the negative pole of the thermoelectric generator, and the positive and negative poles of the thermoelectric generator are connected to the voltage regulator controller.

Working principle: The high-temperature and high-pressure exhaust gas discharged after the fuel is burned in the cylinder of the engine passes through the exhaust gas channel box to form a high-temperature heat source, and the cooling water tank forms a low-temperature cold source. The semiconductor thermoelectric module composed of P-type semiconductors and N-type semiconductors is placed at one end In the high-temperature heat source, the other end is placed in the low-temperature cold source, and the holes of the P-type semiconductor move from the high-temperature end to the low-temperature end, forming a negative charge at the high-temperature end and a positive charge at the low-temperature end, resulting in a potential difference from the low-temperature end to the high-temperature end; N The electrons of the P-type semiconductor move from the high-temperature end to the low-temperature end, forming a positive charge at the high-temperature end and a negative charge at the low-temperature end, resulting in a potential difference from the high-temperature end to the low-temperature end; one end of the P-type semiconductor placed in a high-temperature heat source and one end of the N-type semiconductor Connect with a conductor, the other end of the P-type semiconductor placed in the low-temperature cold source and the other end of the N-type semiconductor are respectively connected to different conductors, and the potential is formed in the open circuit of the low-temperature end through the diffusion of holes and electrons inside the semiconductor The potential difference is exactly the sum of the two potential differences between the P-type semiconductor and the N-type semiconductor, and its output voltage passes through the voltage regulator controller to provide electric energy for the automotive electrical equipment or to charge the battery.

Compared with the prior art, the present invention uses a semiconductor thermoelectric power generation device to directly convert the heat energy of the high-temperature exhaust gas discharged from the automobile engine into electric energy. The device has no noise, no pollution, no mechanical moving parts, no chemical reaction, small volume, light weight, long lasting.

Description of drawings

Fig. 1 is a structural block diagram of an embodiment of the present invention.

In the figure: 1. Automobile high-temperature exhaust gas 2. Thermoelectric generator 3. Exhaust gas channel box 4. Semiconductor thermoelectric module 5. Cooling water tank 6. P-type semiconductor 7. N-type semiconductor 8. Voltage regulator controller.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

The automobile waste gas semiconductor thermoelectric power generation device is composed of a thermoelectric generator 2 and a voltage regulator controller 8. It is characterized in that: the thermoelectric generator 2 is composed of an exhaust gas channel box 3, a semiconductor thermoelectric module 4, and a cooling water tank 5. The semiconductor thermoelectric module 4 is installed in the Between the exhaust gas channel box 3 and the cooling water tank 5, the exhaust gas channel box 3 stores the heat of the high-temperature exhaust gas discharged from the engine, and provides a high-temperature heat source for the semiconductor thermoelectric module 4, and the water in the cooling water tank 5 is controlled by the radiator to maintain a low temperature. The semiconductor thermoelectric module 4 provides a low-temperature cold source, and the semiconductor thermoelectric module 4 is made up of a P-type semiconductor 6 and an N-type semiconductor 7. One end of the P-type semiconductor 6 placed in the high-temperature heat source and the end of the N-type semiconductor 7 placed in the high-temperature heat source One end is connected with a conductor, the other end of the P-type semiconductor 6 placed in the low-temperature cold source is used as the positive pole of the thermoelectric generator 2, and the other end of the N-type semiconductor 7 placed in the low-temperature cold source is used as the negative pole of the thermoelectric generator 2, The positive pole and the negative pole of the thermoelectric generator 2 are connected to the voltage stabilizing controller 8 .

Claims (1)

1. A semiconductor thermoelectric power generation device using exhaust gas from an automobile, consisting of a thermoelectric generator (2) and a voltage regulator controller (8), characterized in that the thermoelectric generator (2) consists of an exhaust gas channel box (3), a semiconductor thermoelectric module (4), cooling water tank (5), the semiconductor thermoelectric module (4) is installed between the exhaust gas channel box (3) and the cooling water tank (5), the exhaust gas channel box (3) stores the high-temperature exhaust gas discharged from the engine Heat, providing a high temperature heat source for the semiconductor thermoelectric module (4), the water in the cooling water tank (5) is controlled by a radiator to maintain a low temperature, providing a low temperature cold source for the semiconductor thermoelectric module (4), and the semiconductor thermoelectric module (4) is composed of P type Semiconductor (6) and N-type semiconductor (7), one end of the P-type semiconductor (6) placed in the high-temperature heat source and one end of the N-type semiconductor (7) placed in the high-temperature heat source are connected with a conductor, placed The other end of the P-type semiconductor (6) in the low-temperature cold source is used as the positive pole of the thermoelectric generator (2), and the other end of the N-type semiconductor (7) placed in the low-temperature cold source is used as the negative pole of the thermoelectric generator (2), The positive and negative poles of the thermoelectric generator (2) are connected to the voltage stabilizing controller (8).