CN104052335A

CN104052335A - Semiconductor temperature difference power generation device using automobile exhaust gas

Info

Publication number: CN104052335A
Application number: CN201410332483.5A
Authority: CN
Inventors: 张学义; 尹红彬; 任锦玲; 王越
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2014-07-14
Filing date: 2014-07-14
Publication date: 2014-09-17

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

Utilize automobile exhaust gas semiconductor thermo-electric generation apparatus

Technical field

The invention provides a kind of automobile exhaust gas semiconductor thermo-electric generation apparatus that utilizes, belong to electric motor of automobile technical field of electric appliances.

Background technology

Auto industry is the sign of modern industry, it is the leading industry of the national economic development, yet a large amount of consumption of fuel oil and the scarcity of China's oil resource, become the problem that China's economic development be can not ignore, the fuel oil effective rate of utilization of automobile is on the low side at present, wherein oil inflame energy-producing 30%～45% is directly discharged in atmosphere with HTHP waste gas, not only caused the profligacy of the energy, also polluted environment simultaneously, therefore how by automobile exhaust gas power conversion, to be available secondary energy sources on automobile, for vehicle energy saving, reduction of discharging is of great immediate significance.

Summary of the invention

The object of this invention is to provide and a kind ofly can overcome above-mentioned defect, utilize the entrained heat energy of automobile exhaust gas, through temperature difference electricity generation device, thermal power transfer, be electric energy, charge a battery, farthest utilize automobile exhaust gas heat energy, what additionally do not increase fuel consume utilizes automobile exhaust gas semiconductor thermo-electric generation apparatus, and its technology contents is:

Automobile exhaust gas semiconductor thermo-electric generation apparatus is by thermoelectric generator, voltage-stabilizing controller forms, it is characterized in that: thermoelectric generator is by exhaust steam passage casing, semiconductor thermoelectric module, cooling water tank forms, semiconductor thermoelectric module is arranged between exhaust steam passage casing and cooling water tank, exhaust steam passage casing stores the high-temp waste gas heat of being discharged by engine, to semiconductor thermoelectric module, provide high temperature heat source, water in cooling water tank is controlled and is maintained a low temperature by radiator, to semiconductor thermoelectric module, provide low temperature cold source, semiconductor thermoelectric module is comprised of P type semiconductor and N type semiconductor, the one end that is placed in the P type semiconductor of high temperature heat source is connected with electric conductor with the one end that is placed in the N type semiconductor of high temperature heat source, be placed in the other end of P type semiconductor of low temperature cold source as the positive pole of thermoelectric generator, be placed in the other end of N type semiconductor of low temperature cold source as the negative pole of thermoelectric generator, the positive pole of thermoelectric generator, negative pole connects voltage-stabilizing controller.

Operation principle: the HTHP waste gas that fuel is discharged after the acting of engine air in-cylinder combustion, through exhaust steam passage casing, form high temperature heat source, cooling water tank forms low temperature cold source, the semiconductor thermoelectric module being formed by P type semiconductor and N type semiconductor, one end is placed in high temperature heat source, and the other end is placed in low temperature cold source, the hole of P type semiconductor is moved to low-temperature end by temperature end, formation temperature end is electronegative, and low-temperature end positively charged produces the potential difference from low-temperature end to temperature end; The electronics of N type semiconductor is moved to low-temperature end by temperature end, forms temperature end positively charged, and low-temperature end is electronegative, produces the potential difference from temperature end to low-temperature end; The P type semiconductor one end that is placed in high temperature heat source is connected with electric conductor with one end of N type semiconductor, the other end of P type semiconductor and the other end of N type semiconductor that are placed in low temperature cold source are connected to respectively on different electric conductors, by being diffused in low-temperature end open circuit of semiconductor inner cavity, electronics, form potential difference, this potential difference is just these two potential difference sums of P type semiconductor and N type semiconductor, and its output voltage provides electric energy or charge a battery to automobile electrical equipment after by voltage-stabilizing controller.

The present invention compared with prior art, the high-temp waste gas heat energy that utilizes semiconductor thermo-electric generation apparatus that automobile engine is discharged is converted into electric energy, this device noiselessness, pollution-free, machinery-free moving component, without chemical reaction, volume is little, quality is light, long service life.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of the embodiment of the present invention.

In figure: 1, automobile high-temp waste gas 2, thermoelectric generator 3, exhaust steam passage casing 4, semiconductor thermoelectric module 5, cooling water tank 6, P type semiconductor 7, N type semiconductor 8, voltage-stabilizing controller.

Embodiment

Below in conjunction with accompanying drawing, the invention will be further described:

Automobile exhaust gas semiconductor thermo-electric generation apparatus is by thermoelectric generator 2, voltage-stabilizing controller 8 forms, it is characterized in that: thermoelectric generator 2 is by exhaust steam passage casing 3, semiconductor thermoelectric module 4, cooling water tank 5 forms, semiconductor thermoelectric module 4 is arranged between exhaust steam passage casing 3 and cooling water tank 5, exhaust steam passage casing 3 stores the high-temp waste gas heat of being discharged by engine, high temperature heat source is provided to semiconductor thermoelectric module 4, the water that cooling water tank is 5 li is controlled and is maintained a low temperature by radiator, low temperature cold source is provided to semiconductor thermoelectric module 4, semiconductor thermoelectric module 4 is comprised of P type semiconductor 6 and N type semiconductor 7, the one end that is placed in the P type semiconductor 6 of high temperature heat source is connected with electric conductor with the one end that is placed in the N type semiconductor 7 of high temperature heat source, be placed in the other end of P type semiconductor 6 of low temperature cold source as the positive pole of thermoelectric generator 2, be placed in the other end of N type semiconductor 7 of low temperature cold source as the negative pole of thermoelectric generator 2, the positive pole of thermoelectric generator 2, negative pole connects voltage-stabilizing controller 8.

Claims

1. one kind is utilized automobile exhaust gas semiconductor thermo-electric generation apparatus, by thermoelectric generator (2), voltage-stabilizing controller (8) forms, it is characterized in that: thermoelectric generator (2) is by exhaust steam passage casing (3), semiconductor thermoelectric module (4), cooling water tank (5) forms, semiconductor thermoelectric module (4) is arranged between exhaust steam passage casing (3) and cooling water tank (5), exhaust steam passage casing (3) stores the high-temp waste gas heat of being discharged by engine, high temperature heat source is provided to semiconductor thermoelectric module (4), the inner water of cooling water tank (5) is controlled and is maintained a low temperature by radiator, low temperature cold source is provided to semiconductor thermoelectric module (4), semiconductor thermoelectric module (4) is comprised of P type semiconductor (6) and N type semiconductor (7), the one end that is placed in the P type semiconductor (6) of high temperature heat source is connected with electric conductor with the one end that is placed in the N type semiconductor (7) of high temperature heat source, be placed in the other end of P type semiconductor (6) of low temperature cold source as the positive pole of thermoelectric generator (2), be placed in the other end of N type semiconductor (7) of low temperature cold source as the negative pole of thermoelectric generator (2), the positive pole of thermoelectric generator (2), negative pole connects voltage-stabilizing controller (8).