CN221103209U - Photovoltaic thermoelectric material micro carbon heater - Google Patents

Abstract

The utility model provides a photovoltaic thermoelectric material micro-carbon heater, which belongs to the technical field of heaters. The utility model includes: at least one photovoltaic panel and a heating device; the heating device includes a thermoelectric sheet and a micro-carbon material, the thermoelectric sheet is used to convert electrical energy into thermal energy through micro-carbon material heating; the thermoelectric sheet includes a hot end aluminum plate, a cold end aluminum plate, a number of copper guide plates, a number of P-type semiconductors and a number of N-type semiconductors; a number of P-type semiconductors and a number of N-type semiconductors are arranged alternately in parallel, and the two ends are connected in series in sequence through a number of copper guide plates, and a number of copper guide plates located at both ends of a number of P-type semiconductors and a number of N-type semiconductors are respectively connected to the hot end aluminum plate and the cold end aluminum plate through a silicone grease coating; a number of P-type semiconductors and a number of N-type semiconductors are thermoelectric semiconductors. The utility model uses photovoltaic panels to efficiently utilize solar energy to provide an energy source for the heater, and improves the thermal conductivity, thermoelectric conversion efficiency and stability of the heater through the heating device.

Description

Photovoltaic thermoelectric material micro carbon heater

Technical Field

The utility model relates to the technical field of heaters, in particular to a photovoltaic thermoelectric material micro-carbon heater.

Background technique

With the continuous growth of global energy demand, the development and utilization of renewable energy has become the focus of attention in today's world. Photovoltaic thermoelectric materials, as a new type of renewable energy conversion material, have attracted much attention due to their excellent photoelectric conversion performance and thermoelectric properties. However, in practical applications, the thermoelectric performance of photovoltaic thermoelectric materials still needs to be improved. In order to improve the thermoelectric performance of photovoltaic thermoelectric materials, researchers have tried to improve their thermal and electrical conductivity by adding micro-carbon materials (such as carbon nanotubes, graphene, etc.).

Researchers have conducted a lot of research work to improve the thermoelectric performance of photovoltaic thermoelectric materials. However, the current photovoltaic thermoelectric material micro-carbon heater has poor effects in terms of thermal conductivity, thermoelectric conversion efficiency and stability. Therefore, it is of great significance to develop a photovoltaic thermoelectric material micro-carbon heater with higher thermoelectric performance, good stability and easy integration.

Utility Model Content

In view of this, in order to solve the technical problems that the existing micro-carbon heaters have poor effects in thermal conductivity, thermoelectric conversion efficiency and stability, the utility model provides a photovoltaic thermoelectric material micro-carbon heater, which efficiently utilizes solar energy through photovoltaic panels to provide an energy source for the heater, and improves the thermal conductivity, thermoelectric conversion efficiency and stability of the heater through a heating device.

In order to achieve the above purpose, the utility model provides the following technical solutions:

Photovoltaic thermoelectric material micro carbon heater, including:

at least one photovoltaic panel for converting absorbed solar energy into electrical energy;

A heating device connected to the photovoltaic panel;

The heating device comprises a thermoelectric power generation sheet and a micro-carbon material, wherein the thermoelectric power generation sheet is used to convert the electrical energy into thermal energy and heat the micro-carbon material;

The thermoelectric power generation sheet comprises a hot-end aluminum plate, a cold-end aluminum plate, a plurality of copper guide plates, a plurality of P-type semiconductors and a plurality of N-type semiconductors;

The plurality of P-type semiconductors and the plurality of N-type semiconductors are arranged alternately in parallel, and the two ends are sequentially connected in series through the plurality of copper guide plates, and the plurality of copper guide plates located at the two ends of the plurality of P-type semiconductors and the plurality of N-type semiconductors are respectively connected to the hot-end aluminum plate and the cold-end aluminum plate through a silicone grease coating;

Some of the P-type semiconductors and some of the N-type semiconductors are thermoelectric semiconductors.

Preferably, the thermoelectric semiconductor material is bismuth telluride.

Preferably, the power generation output end of the thermoelectric power generation sheet is connected to a measuring circuit for measuring the conversion efficiency of the photovoltaic panel.

Preferably, the measuring circuit comprises a load, a voltmeter and an ammeter; the load is connected in parallel with the voltmeter and then in series with the ammeter.

Preferably, the number of the photovoltaic panels is four, and the four photovoltaic panels are connected in series.

Compared with the prior art, the utility model has the following beneficial effects:

The photovoltaic thermoelectric material micro-carbon heater provided by the utility model efficiently utilizes solar energy through a photovoltaic panel to provide an energy source for the heater, and improves the thermal conductivity, thermoelectric conversion efficiency and stability of the heater through a heating device.

The photovoltaic thermoelectric material micro-carbon heater provided by the utility model makes efficient use of solar energy, converts the absorbed solar energy into electrical energy through the photovoltaic panel to provide a heat energy source for the heating device (converts the electrical energy generated by the photovoltaic panel into thermal energy), and arranges a plurality of P-type semiconductors and a plurality of N-type semiconductors composed of different semiconductor thermoelectric materials alternately in parallel, and connects the hot-end aluminum plate and the cold-end aluminum plate that generate the temperature difference through a copper guide plate. The use of thermoelectric semiconductors can improve the thermoelectric conversion efficiency between the photovoltaic panel and the heating device. The micro-carbon material is preferably carbon nanotubes, graphene, etc., which have strong thermal conductivity, can quickly generate a large amount of heat after the heating device is connected to the power supply, and has a high thermoelectric conversion rate. During the heating process, due to the stability of the thermoelectric material and the micro-carbon material, its heating performance is less affected by the voltage fluctuation, and therefore, its stability is relatively good.

The photovoltaic thermoelectric material micro-carbon heater provided by the utility model can also achieve different temperature requirements by adjusting the angle, area or type (P-type semiconductors and N-type semiconductors of different thermoelectric materials) and quantity of the photovoltaic panel, so that the photovoltaic panel can collect the most thermal energy and generate the most electrical energy within the allowable range, providing sufficient energy for the thermoelectric material to meet the application of different scenarios.

Compared with traditional heating methods such as coal and gas, the photovoltaic thermoelectric material micro-carbon heater provided by the utility model does not produce pollutant emissions and completely achieves zero carbon emissions, which helps to reduce environmental pollution and accelerate the realization of dual carbon goals. It can be applied to household electricity use, geothermal utilization, industrial waste heat recovery and utilization in rural areas, and meet various heating and hot water needs.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the structure of a temperature difference thermoelectric sheet;

In the figure, 1. Silicone grease coating, 2. Copper guide plate, 3. Hot end aluminum plate, 4. Cold end aluminum plate.

Detailed ways

As shown in FIG. 1-2, the utility model provides a photovoltaic thermoelectric material micro-carbon heater, comprising:

At least one photovoltaic panel, which is used to convert absorbed solar energy into electrical energy. For example, four photovoltaic panels can be connected in series. The number and area of photovoltaic panels can also be selected according to actual needs to meet the energy requirements of different application scenarios. Photovoltaic panels can efficiently use solar energy to provide energy sources for heating devices.

A heating device connected to the photovoltaic panel;

The heating device comprises a thermoelectric power generation sheet and a micro-carbon material, wherein the thermoelectric power generation sheet is used to convert the electrical energy into thermal energy and heat the micro-carbon material;

The thermoelectric power generation sheet comprises a hot-end aluminum plate 3, a cold-end aluminum plate 4, a plurality of copper guide plates 2, a plurality of P-type semiconductors and a plurality of N-type semiconductors, wherein the hot-end aluminum plate 3 and the cold-end aluminum plate 4 are two metal plates that generate a temperature difference, and the carrier concentration of the hot-end aluminum plate 3 is higher than that of the cold-end aluminum plate 4;

The plurality of P-type semiconductors and the plurality of N-type semiconductors are arranged alternately in parallel, and the two ends are sequentially connected in series through the plurality of copper guide plates 2, and the plurality of copper guide plates 2 located at the two ends of the plurality of P-type semiconductors and the plurality of N-type semiconductors are respectively connected to the hot end aluminum plate 3 and the cold end aluminum plate 4 through the silicone grease coating 1;

Some of the P-type semiconductors and some of the N-type semiconductors are thermoelectric semiconductors. The use of thermoelectric semiconductors can improve thermal conductivity, thermoelectric conversion efficiency and ensure the stability of system operation.

The above-mentioned photovoltaic thermoelectric material micro-carbon heater provided by the utility model utilizes photovoltaic panels to absorb solar energy and convert it into electrical energy, and the heating device converts the electrical energy generated by the photovoltaic panels into thermal energy, thereby realizing instant use. Among them, the micro-carbon material is preferably carbon nanotubes, graphene, etc., which have strong thermal conductivity and can quickly generate a large amount of heat after the heating device is connected to a power source. It has a high thermoelectric conversion rate. During the heating process, due to the stability of thermoelectric materials and micro-carbon materials, their heating performance is less affected by voltage fluctuations. Therefore, their stability is relatively good.

In the utility model, the power generation output end of the temperature difference power generation sheet is connected to a measuring circuit for measuring the conversion efficiency of the photovoltaic panel, specifically: it can measure the conversion efficiency of the solar energy absorbed by the photovoltaic panel into electrical energy, such as: the conversion efficiency of the solar energy absorbed within a specific time period into electrical energy, etc.

In the utility model, the measuring circuit comprises a load, a voltmeter and an ammeter; the load is connected in parallel with the voltmeter and then in series with the ammeter.

In the utility model, the number of the photovoltaic panels is four, and the four photovoltaic panels are connected in series.

In the utility model, a heat dissipation device, such as a fan, etc., can also be provided to ensure the stability of the operation of the micro-carbon heater.

In the present invention, in order to improve the absorption of solar energy by the photovoltaic panel, a control device can be provided, which adjusts the angle of absorption of solar energy by the angle adjustment device provided on the photovoltaic panel in real time according to the light intensity, thereby improving the energy conversion efficiency. A storage battery can also be provided to store the electric energy generated by the photovoltaic panel or the excess electric energy, so that at night or when the light is insufficient, the storage battery can transmit the stored electric energy to the heating device, and the heating device can convert the stored electric energy into heat energy to meet the needs at night.

The control device may use a microprocessor as the core to control the angle adjustment device on the photovoltaic panel and the charging and discharging working state of the battery. The battery capacity may be selected as 100-150Ah, and batteries of other capacities may be selected as needed.

It should be noted that the micro-carbon heater can also be used in conjunction with an existing remote monitoring terminal, the controller communicates with the remote control terminal, and the system operation status is monitored through a mobile phone APP or a computer, and parameters are set to achieve intelligent management. The setting parameters can be: start time period (when to start and when to end), photovoltaic panel angle, and light intensity (the battery charge and discharge state can be switched according to the light intensity. For example, if the light intensity is too high, the battery can be selected to be in a discharge state to convert the battery's electrical energy into heat energy).

The above can be selected and added according to actual needs, and there is no special limitation on this.

The above are only preferred specific implementations of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical solution and its improved conception of the utility model, which should be included in the protection scope of the utility model.

Claims (5)

1. The micro-carbon heater of the photovoltaic thermoelectric material is characterized by comprising:

At least one photovoltaic panel for converting absorbed solar energy into electrical energy;

a heating device connected to the photovoltaic panel;

the heating device comprises a thermoelectric generation sheet and a micro-carbon material, wherein the thermoelectric generation sheet is used for converting the electric energy into heat energy and heating the heat energy through the micro-carbon material;

The thermoelectric generation sheet comprises a hot end aluminum plate, a cold end aluminum plate, a plurality of copper guide plates, a plurality of P-type semiconductors and a plurality of N-type semiconductors;

The P-type semiconductors and the N-type semiconductors are alternately arranged in parallel, two ends of the P-type semiconductors and the N-type semiconductors are sequentially connected in series through the copper guide plates, and the copper guide plates positioned at two ends of the P-type semiconductors and the N-type semiconductors are respectively connected with the hot end aluminum plate and the cold end aluminum plate through silicone grease coatings;

the P-type semiconductors and the N-type semiconductors are thermoelectric semiconductors.

2. The photovoltaic thermoelectric material micro-carbon heater of claim 1 wherein the thermoelectric semiconductor material is bismuth telluride.

3. The photovoltaic thermoelectric material micro-carbon heater according to claim 1, wherein a power generation output end of the thermoelectric generation sheet is connected with a measurement circuit for measuring the conversion efficiency of the photovoltaic panel.

4. The photovoltaic thermoelectric material micro-carbon heater of claim 3 wherein the measurement circuit comprises a load, a voltmeter, and an ammeter; and the load is connected with the voltmeter in parallel and then connected with the ammeter in series.

5. The photovoltaic thermoelectric material micro-carbon heater of any one of claims 1-4 wherein the number of photovoltaic panels is four, four of the photovoltaic panels being connected in series.