CN204343483U - The cold and hot wall of solar energy and semiconductor thermoelectric pile - Google Patents

Abstract

The utility model discloses a solar semiconductor thermopile cold and hot wall, which mainly includes a hollow wall and a solar photovoltaic panel. A core cavity is embedded in the hollow wall, and the core cavity faces the indoor and the outdoor walls respectively. An aluminum plate is provided, and a semiconductor cooling and heating device is installed in the core cavity, and the semiconductor cooling device is connected to the indoor side aluminum plate and the outdoor side aluminum plate respectively; the solar photovoltaic panel and the semiconductor cooling and heating device are connected through a circuit; the semiconductor cooling and heating device includes interconnected semiconductor The thermopile and the aluminum rod, the semiconductor thermopile is connected to the aluminum plate on the indoor side, and the aluminum rod is connected to the aluminum plate on the outdoor side. The utility model utilizes the photovoltaic effect of solar energy, and through the approach of "light-electricity-cold/heat", the electric energy generated by the solar cell drives the semiconductor thermopile to directly perform refrigeration or heating, and produces an air-conditioning effect; the utility model is compatible with the existing solar semiconductor Compared with the hot and cold wall, the structure is simpler and more compact, the operation is convenient, and the manufacturing cost is low.

Description

Solar semiconductor thermopile cold and hot wall

technical field

The utility model relates to the technical field of solar semiconductor refrigeration and heating, in particular to a solar semiconductor thermopile cold and hot wall.

Background technique

With the rapid development of the economy and the acceleration of urban construction, the energy consumption is becoming more and more serious. The energy problem seriously restricts the sustainable development strategy of our country. According to statistics, building energy consumption accounts for 20% to 30% of my country's total energy consumption. Therefore, it is of great significance to study and design near zero energy consumption buildings. Nearly zero-energy buildings meet the needs of indoor heating and cooling by adopting various energy-saving technologies such as natural ventilation, natural lighting, solar radiation, and heat gain from indoor non-heating sources. Currently, much of the building industry relies on mechanical means for heating and cooling.

In recent years, with the continuous development of solar power generation technology and semiconductor technology, the efficiency of solar photoelectric conversion and semiconductor refrigeration and heating efficiency have been greatly improved, and the combination of solar power generation technology and semiconductor refrigeration technology and applied to the construction industry The technology is not mature enough, not only the structure is complicated but also the manufacturing cost is high.

Contents of the invention

Aiming at the deficiencies of the prior art, the utility model combines solar power generation technology and semiconductor cooling and heating technology to provide a low-cost, simple-structured, green and environment-friendly solar semiconductor thermopile cooling and heating wall.

The technical solution adopted by the utility model to solve the above problems is: a solar semiconductor thermopile cold and hot wall, mainly including a hollow wall and a solar photovoltaic panel, a core cavity is embedded in the hollow wall, and the core cavity faces The indoor and outdoor walls are respectively provided with aluminum plates, and a semiconductor cooling and heating device is installed in the core cavity, and the semiconductor cooling and heating device is respectively connected to the indoor and outdoor aluminum plates; the solar photovoltaic panel is connected to the semiconductor cooling system. The heat device is connected by an electric circuit.

The semiconductor cooling and heating device includes interconnected semiconductor thermopiles and aluminum rods, the semiconductor thermopiles are connected to the indoor aluminum plate, and the aluminum rods are connected to the outdoor aluminum plate.

The core cavity is filled with thermal insulation material.

The semiconductor thermopile is composed of a plurality of semiconductor slices connected in series and parallel to form a P-N junction to form a thermocouple pair and generate the Peltier effect.

A transfer switch is also installed on the wall inside the hollow wall body.

The solar semiconductor thermopile cold and hot wall also includes a bracket, and the solar photovoltaic panel is fixedly installed on the bracket.

The utility model utilizes the photovoltaic effect of solar energy, and through the approach of "light-electricity-cold/heat", the electric energy generated by the solar cell drives the semiconductor thermopile to directly perform refrigeration or heating, and produces an air-conditioning effect; the utility model is compatible with the existing solar semiconductor Compared with the hot and cold wall, the structure is simpler and more compact, the operation is convenient, and the manufacturing cost is low.

Compared with the existing equipment, the utility model has the following advantages:

(1) The cooling and heating device of the solar semiconductor thermopile cold and hot wall is a semiconductor wall composed of semiconductor thermopiles connected in series and parallel. When the solar photovoltaic panel supplies power to the semiconductor wall, the semiconductor wall will actively cool or heat. The use of semiconductor walls for cooling and heating will not only produce convective heat transfer, but also generate cold and heat radiation at the same time, and the cooling and heating effect will be more prominent;

(2) In the process of semiconductor refrigeration, the heat of the hot end is transferred to the outdoor aluminum plate by using the aluminum rod with high heat transfer coefficient, and dissipates heat with the outdoor air; the semiconductor refrigeration and heating device using aluminum plate for heat dissipation has high heat transfer coefficient and fast cooling speed, Large refrigeration coefficient, safety and durability;

(3) The solar semiconductor thermopile cold and hot wall has no mechanical refrigeration links such as compressors and medium pipes, no mechanical transmission parts, simple structure, and no mechanical wear, so it has no wear, no noise, small size, and has high stability. Simple operation, high reliability, long life, simple control, etc.;

(4) The solar semiconductor thermopile cold and hot wall does not contain any chemical refrigerants and will not release any other harmful substances, so it has no environmental pollution, is clean and hygienic, and helps to solve the problem of ozone destruction;

(5) The cold and hot wall of the solar semiconductor thermopile adopts semiconductor solidified electronic devices, and the thermopile can be arranged arbitrarily, and the size and shape can be changed according to needs;

(6) The thermal inertia of semiconductor devices is small, the cooling and heating time is short, and the maximum temperature difference can be obtained within a short power-on;

(7) The solar semiconductor thermopile cooling and heating wall can adjust the cooling and heating speed and temperature by changing the size of the working current, and the conversion of cooling and heating conditions can be realized by changing the current direction; when adjusting the voltage or current, it is easy to achieve high-precision Temperature control, even if the power is turned on and off frequently, it will not affect the working quality and service life;

(8) The solar semiconductor thermopile cold and hot wall uses solar energy as the energy source, which is green and environmentally friendly and can save conventional energy.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic diagram of a hollow wall of the present invention.

Fig. 3 is a schematic diagram of the interior wall of the utility model.

Among them: 1. Solar photovoltaic panel; 2. Hollow wall; 3. Semiconductor thermopile; 4. Core wall; 5. Indoor aluminum plate; 51. Outdoor aluminum plate; 6. Aluminum rod; 7. Thermal insulation material; 8. Conversion switch; 9, bracket.

Detailed ways

In order to better understand the utility model, the utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in the figure, the solar semiconductor thermopile cold and hot wall mainly includes a hollow wall 2 and a solar photovoltaic panel 1, and a switch 8 is installed on the wall inside the hollow wall 1; the hollow wall 2 is embedded with The core cavity 4 is provided with an indoor side aluminum plate 5 on the wall facing the interior of the core cavity 4, and an outdoor side aluminum plate 51 is set on the wall of the core cavity 4 facing the outside; the core cavity 4 is installed with a semiconductor refrigeration heating device, the semiconductor cooling and heating device is connected to the indoor side aluminum plate 5 and the outdoor side aluminum plate 51 respectively.

The semiconductor refrigeration and heating device includes a semiconductor thermopile 3 and an aluminum rod 6 connected to each other, the semiconductor thermopile 3 is connected to the indoor side aluminum plate 5, and the aluminum rod 6 is connected to the outdoor side aluminum plate 51; filling.

Among them, the semiconductor thermopile 3 is composed of a plurality of semiconductor chips connected in series and parallel to form a P-N junction, forming a thermocouple pair and producing the Peltier effect. When the current passes through the semiconductor thermopile, it can actively cool and heat; the solar photovoltaic panel 1 is fixed on the bracket 9, the solar photovoltaic panel 1 is connected with the semiconductor thermopile 3 through a circuit.

The components are described in detail below:

1. Solar photovoltaic panels

Solar photovoltaic panels can choose crystalline silicon solar cells or nanocrystalline solar cells, and choose the type of solar cells according to the capacity of the cooling and heating device. On sunny days, solar photovoltaic panels convert solar radiation energy into DC power, which is directly used to drive semiconductor thermopile cooling and heating.

2. Hollow wall

The hollow wall is equipped with equipment and instruments required for the cooling and heating process, and the cooling and heating process is realized in the wall.

3. Semiconductor thermopile

The semiconductor thermopile is composed of multiple semiconductor chips connected in series and parallel. The solar photovoltaic panel provides direct current to drive the semiconductor thermopile to achieve the purpose of cooling or heating, and then transfer the cold or heat to the indoor/outdoor through the indoor/outdoor aluminum plate. .

4. Core cavity

The core cavity is the place where the cooling and heating process takes place; the inner and outer walls of the cavity are made of aluminum plates, one end of the semiconductor thermopile is connected to the indoor aluminum plate, the other end is connected to the outdoor aluminum plate through an aluminum rod, and the other parts of the cavity are Filled with insulation; the core cavity is similar in shape to an aerated concrete block.

5. Aluminum plate

The aluminum plate is connected to both ends of the semiconductor thermopile. When the semiconductor thermopile is running, the cold or heat is transferred to the aluminum plate. The heat transfer coefficient of the aluminum plate is high, and the loss of cold or heat is small during the transfer process. The transfer time is fast. Contact with the air to transfer cold or heat to the outside of the room.

6. Aluminum rod

The aluminum rod transfers the heat or cold generated by the semiconductor thermopile to the aluminum plate on the outdoor side, and the aluminum plate on the outdoor side dissipates it into the outdoor air.

7. Insulation material

The insulation material fills the other voids of the core cavity, so that the core wall can be made into the shape of an aerated concrete block, and also plays a role of heat insulation to reduce the cold or heat generated by the semiconductor thermopile in the wall. cancel each other out.

8. Transfer switch

When the room needs to be heated, control the transfer switch to change the flow direction of the current in the semiconductor thermopile. At this time, the side of the solar semiconductor cold and hot wall becomes the hot end to provide heat for the room; when cooling is required, switch the switch, through Control the transfer switch to realize the switching of cooling and heating functions.

9. Bracket

Use brackets to fix solar photovoltaic panels. The optimal inclination angle of solar photovoltaic panels in different regions is different. By adjusting the bracket, the solar photovoltaic panels can also work at the best angle to ensure the efficient operation of the system.

Work process of the present utility model:

Under the daylight, the solar photovoltaic panel outputs direct current to supply the semiconductor thermopile, which actively cools and heats, and transfers the cold or heat to the indoor and outdoor through the aluminum plate.

In summer, when cooling is required, the indoor side aluminum plate of the solar semiconductor thermopile cold and hot wall absorbs indoor heat to achieve the purpose of cooling down the temperature, and the heat is transferred to the outside through the outdoor side aluminum plate, thereby completing the cooling process of the solar semiconductor hot and cold wall; in winter , When heating is required, the direction of the current passing through the semiconductor thermopile is changed through the switch, and at this time, its hot end provides heat to the heating space, so as to achieve the purpose of heating the solar semiconductor cold and hot wall.

Claims (6)

1. the cold and hot wall of solar energy and semiconductor thermoelectric pile, mainly comprise hollow wall and solar energy photovoltaic panel, described hollow wall is embedded with core cavity, it is characterized in that, metope in core cavity faced chamber and outside faced chamber is respectively arranged with aluminium sheet, be provided with Semi-conductor in core cavity, described Semi-conductor is connected with indoor aluminium sheet and outside aluminium sheet respectively; Described solar energy photovoltaic panel is connected by circuit with Semi-conductor.

2. the cold and hot wall of solar energy and semiconductor thermoelectric pile as claimed in claim 1, it is characterized in that, described Semi-conductor comprises interconnective semiconductor thermoelectric module and aluminium bar, and described semiconductor thermoelectric module is connected with indoor aluminium sheet, and aluminium bar is connected with outside aluminium sheet.

3. the cold and hot wall of solar energy and semiconductor thermoelectric pile as claimed in claim 1, is characterized in that, be filled with heat insulating material in described core cavity.

4. the cold and hot wall of solar energy and semiconductor thermoelectric pile as claimed in claim 2, is characterized in that, described semiconductor thermoelectric module is by multiple semiconductor chip connection in series-parallel, and composition P-N junction, forms thermocouple pair, produces paltie effect.

5. the cold and hot wall of solar energy and semiconductor thermoelectric pile as claimed in claim 1, is characterized in that, the metope of described hollow wall indoor is also provided with changeover switch.

6. the cold and hot wall of solar energy and semiconductor thermoelectric pile as claimed in claim 1, it is characterized in that, also comprise support, described solar energy photovoltaic panel is fixedly mounted on support.