CN201656818U

Movatterモバイル変換

Info

Publication number: CN201656818U
Application number: CN2010200327839U
Authority: CN
Inventors: 刘永生; 谷民安
Original assignee: Shanghai University of Electric Power
Current assignee: Shanghai University of Electric Power
Priority date: 2010-01-07
Filing date: 2010-01-07
Publication date: 2010-11-24
Anticipated expiration: 2020-01-07

Abstract

Translated fromChinese

本实用新型涉及一种太阳能光伏及温差发电驱动型直流冰箱，太阳能光伏发电系统作为主要能源，半导体温差发电作为辅助能源，利用蓄热水箱中高温水温度与环境温度的温差，通过半导体温差发电模块将冷热源温差转换为电能，经过半导体温差电源控制电路系统将能量送入直流压缩机调速系统。充分的利用了太阳能，绿色节能、经济环保；利用温差发电技术，有效利用电池板产生的热量，并且与季节温度相匹配；采用温度分层式蓄热水箱，节省水量，制冷效率高。

The utility model relates to a DC refrigerator driven by solar photovoltaic and thermoelectric power generation. The solar photovoltaic power generation system is used as the main energy source, and the semiconductor thermoelectric power generation is used as auxiliary energy. The module converts the temperature difference between cold and heat sources into electric energy, and sends the energy to the DC compressor speed control system through the semiconductor temperature difference power supply control circuit system. It makes full use of solar energy, which is green, energy-saving, economical and environmentally friendly; uses thermoelectric power generation technology to effectively use the heat generated by the panels, and matches the seasonal temperature; adopts temperature-layered heat storage tanks to save water and have high cooling efficiency.

Description

Translated fromChinese

太阳能光伏及温差发电驱动型直流冰箱Solar photovoltaic and thermoelectric power generation driven DC refrigerator

技术领域technical field

本实用新型涉及一种制冷设备，特别涉及一种太阳能光伏及温差发电驱动型直流冰箱。The utility model relates to a refrigeration device, in particular to a direct-current refrigerator driven by solar photovoltaic and thermoelectric power generation.

背景技术Background technique

随着石油、煤、天然气等不可再生能源的消耗及资源的衰竭，人们希望通过对太阳能等新能源的开发利用来解决由于不可再生能源资源枯竭所导致的日益严重的能源危机。而家用冰箱是家庭用电最多的电器，家庭中总用电的33％是冰箱消耗的。我国有很过偏远地区和游牧民族至今没有供电网络，他们无法使用冰箱保存食品，这些都将为太阳能冰箱的开发提供了潜在的市场。With the consumption of non-renewable energy sources such as oil, coal, and natural gas and the depletion of resources, people hope to solve the increasingly serious energy crisis caused by the depletion of non-renewable energy resources through the development and utilization of new energy sources such as solar energy. The household refrigerator is the electrical appliance that consumes the most electricity in the household, and 33% of the total electricity consumption in the household is consumed by the refrigerator. There are many remote areas and nomadic peoples in our country who have no power supply network so far, and they cannot use refrigerators to store food, which will provide a potential market for the development of solar refrigerators.

伴随着工业化的高速发展，全球性的环境恶化和能源危机正威胁着人类的长期稳定发展，各国政府对绿色环保技术的研究与利用给予了前所未有的关注和支持。当前燃料电池在实际应用中遇到困难，而半导体工艺及材料技术的进步使得较高转换效率的热电材料成为可能；同时半导体温差发电是一种全固态能量转换方式，无需化学反应或流体介质，在发电过程中具有无噪音、无磨损、无介质泄露、体积小、重量轻、移动方便、使用寿命长等优点，从而其后期维护成本几乎是零。以上因素使得民用领域的温差电技术成为热门的研究方向。With the rapid development of industrialization, global environmental degradation and energy crisis are threatening the long-term stable development of human beings. Governments of various countries have given unprecedented attention and support to the research and utilization of green environmental protection technologies. At present, fuel cells encounter difficulties in practical applications, and the progress of semiconductor technology and material technology makes it possible to use thermoelectric materials with higher conversion efficiency; at the same time, semiconductor thermoelectric power generation is an all-solid-state energy conversion method that does not require chemical reactions or fluid media. In the process of power generation, it has the advantages of no noise, no wear, no medium leakage, small size, light weight, convenient movement, long service life, etc., so its maintenance cost is almost zero. The above factors make the thermoelectric technology in the civil field become a hot research direction.

实验研究表明，太阳能电池效率随着温度的升高而降低。太阳能制冷具有很好的季节匹配性即天气越热太阳辐射越好系统制冷量越大，但是随着温度的升高，电池板发电效率将会降低，严重影响正常的工作。如果能够有效的给光伏电池降温，同时能够有效地利用好吸收的这部分能量，把热能直接转化为电能，真正实现节能，绿色环保而且提高制冷效率。Experimental studies have shown that solar cell efficiency decreases with increasing temperature. Solar cooling has good seasonal matching, that is, the hotter the weather, the better the solar radiation, the greater the cooling capacity of the system, but as the temperature rises, the power generation efficiency of the panels will decrease, seriously affecting normal work. If the photovoltaic cells can be effectively cooled, and at the same time, the absorbed energy can be effectively used to convert heat energy directly into electrical energy, it will truly save energy, be environmentally friendly and improve cooling efficiency.

发明内容Contents of the invention

本实用新型针对现在冰箱耗电大的问题，提出了一种太阳能光伏及温差发电驱动型直流冰箱，采用蓄电池存储能量，采用变频调速永磁无刷直流电动压缩机，使得整个系统具有运行可靠、制冷系数高、耗电量小等优点。The utility model aims at the problem of high power consumption of refrigerators at present, and proposes a solar photovoltaic and thermoelectric power generation-driven DC refrigerator, which uses a battery to store energy, and adopts frequency conversion speed regulation permanent magnet brushless DC electric compressor, so that the whole system has reliable operation , high cooling coefficient, low power consumption and so on.

本实用新型的技术方案为：一种太阳能光伏及温差发电驱动型直流冰箱，包括太阳能光伏发电系统、温差发电系统、蓄热水箱系统、直流压缩机调速系统、半导体温差电源控制电路系统，温差发电系统包含多级温差发电模块，太阳能光伏发电系统包含太阳能电池板和电源控制器，蓄热水箱系统包含了热水进水管、热水出水管、冷水进水管、冷水出水管，其中热水进水管和冷水出水管均与太阳能电池板相连接，进水管置于太阳能光伏发电系统中电池板底部、出水管置于电池板上部，半导体温差发电模块置于蓄热水箱内部，温差发电系统将蓄热水箱系统中温差转换为电能，通过半导体温差电源控制电路系统将能量送入直流压缩机调速系统。The technical solution of the utility model is: a solar photovoltaic and thermoelectric power generation driven DC refrigerator, including a solar photovoltaic power generation system, a thermoelectric power generation system, a hot water storage tank system, a DC compressor speed control system, and a semiconductor thermoelectric power supply control circuit system. The thermoelectric power generation system includes multi-stage thermoelectric power generation modules, the solar photovoltaic power generation system includes solar panels and power controllers, and the hot water storage tank system includes hot water inlet pipes, hot water outlet pipes, cold water inlet pipes, and cold water outlet pipes. Both the water inlet pipe and the cold water outlet pipe are connected to the solar panel. The water inlet pipe is placed at the bottom of the panel in the solar photovoltaic power generation system, and the outlet pipe is placed at the top of the panel. The semiconductor thermoelectric power generation module is placed inside the hot water storage tank. The system converts the temperature difference in the hot water storage tank system into electric energy, and sends the energy to the DC compressor speed control system through the semiconductor temperature difference power supply control circuit system.

所述太阳能电池板背部有粘结剂，将标准太阳能电池组件与蛇形铜管粘成一体，内部布置一块钢板作为支撑，其下部有保温层。There is an adhesive on the back of the solar cell panel, and the standard solar cell module and the serpentine copper tube are bonded together, and a steel plate is arranged inside as a support, and the lower part has an insulating layer.

所述蓄热水箱采用玻璃钢材料，温差发电系统的热端处用导热块，温差发电系统的冷端设置肋片，导热块采用导热性能良好的紫铜块，并在其上涂上导热性能良好的硅脂，与半导体温差发电模块良好的热接触。The heat storage tank is made of glass fiber reinforced plastic, the hot end of the thermoelectric power generation system is equipped with a heat conduction block, the cold end of the thermoelectric power generation system is provided with ribs, the heat conduction block is made of a copper block with good thermal conductivity, and a coating with good thermal conductivity is applied on it. Silicon grease, good thermal contact with the semiconductor thermoelectric power generation module.

所述半导体温差电源控制电路系统包含升压模块、蓄电池的充放电保护电路及稳压模块，输出放电端有一肖特基二极管。The control circuit system of the semiconductor temperature difference power supply includes a boost module, a battery charge and discharge protection circuit and a voltage stabilizing module, and a Schottky diode at the output discharge end.

本实用新型的有益效果在于：本实用新型太阳能光伏及温差发电驱动型直流冰箱，充分的利用了太阳能，绿色节能、经济环保；利用温差发电技术，有效利用电池板产生的热量，并且与季节温度相匹配；采用温度分层式蓄热水箱，节省水量，制冷效率高。The beneficial effects of the utility model are: the solar photovoltaic and thermoelectric power generation driven DC refrigerator of the utility model makes full use of solar energy, is green, energy-saving, economical and environmentally friendly; utilizes the thermoelectric power generation technology, effectively utilizes the heat generated by the battery board, and is compatible with the seasonal temperature Matching; the temperature layered heat storage tank is adopted, which saves water and has high cooling efficiency.

附图说明Description of drawings

图1为本实用新型系统太阳能光伏及温差发电驱动型直流冰箱原理框图；Fig. 1 is the principle block diagram of the DC refrigerator driven by solar photovoltaic and thermoelectric power generation of the utility model system;

图2为本实用新型系统太阳能光伏及温差发电驱动型直流冰箱半导体温差发电框图；Fig. 2 is the block diagram of the semiconductor thermoelectric power generation of the DC refrigerator driven by solar photovoltaic and thermoelectric power generation of the utility model system;

图3为本实用新型系统太阳能光伏及温差发电驱动型直流冰箱太阳能电池板改造图；图4为本实用新型系统太阳能光伏及温差发电驱动型直流冰箱蓄热水箱构造图；Fig. 3 is a modification diagram of the solar panel of a DC refrigerator driven by solar photovoltaic and thermoelectric power generation of the system of the present utility model; Fig. 4 is a structural diagram of a hot water storage tank of a DC refrigerator driven by solar photovoltaic and thermoelectric power generation of the system of the present utility model;

图5为本实用新型系统太阳能光伏及温差发电驱动型直流冰箱温差发电原理图。Fig. 5 is a schematic diagram of thermoelectric power generation of a DC refrigerator driven by solar photovoltaic and thermoelectric power generation of the utility model system.

具体实施方式Detailed ways

系统太阳能光伏及温差发电驱动型直流冰箱如图1所示原理框图，包括太阳能光伏发电系统、温差发电系统、蓄热水箱系统、直流压缩机调速系统、半导体温差电源控制电路系统。太阳能光伏发电系统作为能源，通过管路在蓄热水箱中产生温差，半导体温差发电模块4置于蓄热水箱内部，温差发电系统将冷热源温差转换为电能，通过半导体温差电源控制电路系统将能量送入直流压缩机调速系统。图中所示为太阳能电池板1、热水出2、冷水出口3、温差发电模块4、冷水进口5、蓄热水箱6、热水进口7、电源控制器8、标准电阻一9、标准电阻二10、蓄电池11、永磁无刷直流电动压缩机12、冰箱13、循环水泵14。The system’s solar photovoltaic and thermoelectric power generation-driven DC refrigerator is shown in Figure 1. It includes a solar photovoltaic power generation system, a thermoelectric power generation system, a hot water storage tank system, a DC compressor speed control system, and a semiconductor thermoelectric power supply control circuit system. The solar photovoltaic power generation system is used as an energy source to generate a temperature difference in the hot water storage tank through the pipeline. The semiconductor thermoelectricpower generation module 4 is placed inside the hot water storage tank. The system sends energy to the DC compressor speed control system. The figure shows solar panel 1, hot water outlet 2,cold water outlet 3, thermoelectricpower generation module 4,cold water inlet 5, hotwater storage tank 6,hot water inlet 7,power controller 8, standard resistance 9, standard Resistor 2 10,battery 11, permanent magnet brushless DCelectric compressor 12,refrigerator 13, circulatingwater pump 14.

半导体温差发电模块4利用赛贝克效应，将P型半导体和N型半导体的热端相连，则在冷端可得到一个电压，这样一个PN结就可以利用高温热源与低温热源之间的温差将热能直接转换成电能，将很多个这样的PN结串联起来，就可以得到足够高的电压，成为一个温差发电机，这样的温差发电机完全没有转动部分，因此非常可靠。根据以上原理，制作出半导体温差发电模块，该模块是一种利用温差直接将热能转化为电能的全固态能量转化发电装置。它无需化学反应且无机械移动部分，因而具有无噪音、无污染、无磨损、重量轻、寿命长等优点。本实用新型主要充分的利用光伏电池在运行中产生的热量，既能提高光伏电池的发电效率也能利用温差发电模块进行发电，从而也就提高了制冷效率。The semiconductor thermoelectricpower generation module 4 uses the Seebeck effect to connect the hot end of the P-type semiconductor and the N-type semiconductor, and then a voltage can be obtained at the cold end, so that a PN junction can utilize the temperature difference between the high-temperature heat source and the low-temperature heat source to transfer heat energy It can be directly converted into electrical energy, and many such PN junctions can be connected in series to obtain a high enough voltage to become a thermoelectric generator. Such a thermoelectric generator has no rotating parts at all, so it is very reliable. According to the above principles, a semiconductor thermoelectric power generation module is produced, which is an all-solid-state energy conversion power generation device that directly converts heat energy into electrical energy by using temperature difference. It does not require chemical reactions and has no mechanical moving parts, so it has the advantages of no noise, no pollution, no wear, light weight, and long life. The utility model mainly makes full use of the heat generated by the photovoltaic cell during operation, which can not only improve the power generation efficiency of the photovoltaic cell but also utilize the thermoelectric power generation module to generate power, thus improving the cooling efficiency.

光伏发电系统包含太阳能电池板1、电源控制器8、开关。光伏发电系统通过电源控制器8与温度控制器、循环水泵14、直流压缩机调速系统相连接。我们根据冰箱的热负荷及其耗功在推算出冰箱13的输入功率。本直流系统工作电压为12V，有这些基本参数可以计算出太阳能电池串并联数目，并且选出合适的电源控制器8。太阳能电池板1背部有粘胶剂17，将标准太阳能电池组件16与蛇形铜管15粘成一体。蛇形铜管15作为流体的通道，流体选择为水。内部布置一块钢板作为支撑，其下部有保温层18，防止热量的散失，如图3所示。The photovoltaic power generation system includes a solar panel 1, apower controller 8, and a switch. The photovoltaic power generation system is connected with the temperature controller, the circulatingwater pump 14 and the DC compressor speed regulating system through thepower controller 8 . We calculate the input power of therefrigerator 13 according to the heat load of the refrigerator and its power consumption. The operating voltage of the DC system is 12V. With these basic parameters, the number of solar cells connected in series and parallel can be calculated, and anappropriate power controller 8 can be selected. There is anadhesive 17 on the back of the solar cell panel 1 to bond the standardsolar cell module 16 and theserpentine copper tube 15 into one body. Theserpentine copper pipe 15 is used as a fluid channel, and the fluid is selected as water. A steel plate is arranged inside as a support, and aninsulating layer 18 is arranged at the lower part thereof to prevent heat loss, as shown in FIG. 3 .

半导体温差电源控制电路系统包括蓄电池11的充放电保护电路、升压模块及稳压模块。在电路中为了防止产生的电压低于蓄电池的电压时，蓄电池11向半导体温差模块4充电，造成不必要的能量损耗及模块的损坏，需要接一肖特基二极管在蓄电池充电保护电路中；在蓄电池放电保护电路中，当蓄电池电压较低时，为了防止负载对蓄电池产生影响，在蓄电池与负载之间也接了一肖特基二极管，如图2所示。The semiconductor temperature difference power supply control circuit system includes a charging and discharging protection circuit for thestorage battery 11, a voltage boosting module and a voltage stabilizing module. In order to prevent the generated voltage in the circuit from being lower than the voltage of the storage battery, thestorage battery 11 charges the semiconductortemperature difference module 4, causing unnecessary energy loss and damage to the module. A Schottky diode needs to be connected in the storage battery charging protection circuit; In the battery discharge protection circuit, when the battery voltage is low, in order to prevent the load from affecting the battery, a Schottky diode is also connected between the battery and the load, as shown in Figure 2.

蓄热水箱系统包含了热水进水管7、热水出水管2、冷水进水管5、冷水出水管3。其中热水进水管7和冷水出水管3均与太阳能电池板相连接。进水管置于电池板底部、出水管置于电池板上部，这将更加有利于换热。蓄水水箱装置具体见图4。蓄热水箱系统采用玻璃钢作为基本材料，在温度较高段，用导热块代替玻璃钢。在蓄热水箱内部，在热水进水管7的底部钻出6个孔，冷水进水管5长度大于热水进水管7，冷水进水管5、冷水出水管3的上部下部均钻8个孔。在蓄热水箱内部再布置一管道，上下部均钻6个孔，热水出水管2的左右钻6个孔。蓄热水箱6外部有保温层。The hot water tank system includes a hotwater inlet pipe 7, a hot water outlet pipe 2, a coldwater inlet pipe 5, and a coldwater outlet pipe 3. Wherein the hotwater inlet pipe 7 and the coldwater outlet pipe 3 are all connected with the solar panel. The water inlet pipe is placed at the bottom of the battery board, and the water outlet pipe is placed at the top of the battery board, which will be more conducive to heat exchange. The water storage tank device is shown in Figure 4 in detail. The heat storage tank system uses FRP as the basic material, and in the higher temperature section, the FRP is replaced by a heat conduction block. Inside the hot water storage tank, 6 holes are drilled at the bottom of the hotwater inlet pipe 7, the length of the coldwater inlet pipe 5 is longer than that of the hotwater inlet pipe 7, and 8 holes are drilled at the upper and lower parts of the coldwater inlet pipe 5 and the coldwater outlet pipe 3 . A pipeline is arranged inside the heat storage tank, and 6 holes are drilled in the upper and lower parts, and 6 holes are drilled in the left and right sides of the hot water outlet pipe 2.Heat storage tank 6 outside has insulation layer.

温差发电模块4包含多级温差发电模块、蓄热水箱。我们利用冷水循环对太阳能电池板器进行降温，此时的太阳能电池板的温度将会控制在30℃左右，这将大大的提高了太阳能电池的发电效率。冷水流经电池板后温度升高，进入蓄热水箱。蓄热水箱采用玻璃钢材料，在作为温差发电系统的热端处用导热块21代替玻璃钢。温差发电系统的冷端设置肋片19，加快散热，基本与室外温度相同。导热块21采用导热性能良好的紫铜块，并在其上涂上导热性能良好的硅脂，以保证半导体温差发电模块4和导热铜块21能良好的热接触。温差发电模块与电源控制器相连接。温差发电装置详见图5。The thermoelectricpower generation module 4 includes a multi-stage thermoelectric power generation module and a hot water storage tank. We use cold water circulation to cool down the solar panel, and the temperature of the solar panel will be controlled at about 30°C, which will greatly improve the power generation efficiency of the solar cell. The temperature of the cold water rises after passing through the panels and enters the hot water storage tank. The hot water storage tank is made of glass fiber reinforced plastic, and the thermalconductive block 21 is used to replace the glass fiber reinforced plastic at the hot end of the thermoelectric power generation system. The cold end of the thermoelectric power generation system is provided withfins 19 to speed up heat dissipation, which is basically the same as the outdoor temperature. Theheat conduction block 21 is made of a copper block with good thermal conductivity, and coated with silicone grease with good thermal conductivity to ensure good thermal contact between the semiconductor thermoelectricpower generation module 4 and the heatconduction copper block 21 . The thermoelectric power generation module is connected with the power controller. The thermoelectric power generation device is shown in Figure 5 for details.

直流压缩机调速系统包含太阳能电池电能功率传感器、电源控制器和变频调速永磁无刷直流电动压缩机.变频调速三相异步电动压缩机由于三相异步电动压缩机需要励磁而消耗一部分电能导致电机效率下降，为进一步提高冰箱的节能效果，引人了变频调速永磁无刷直流电动压缩机.永磁无刷直流电动压缩机的电机采用永磁无刷直流电动机，其转子材料采用永磁体而不是鼠笼转子，省却了无功励磁电流，因而其效率要比同规格感应电动机高2％一8％。永磁无刷直流电动压缩机还特别适合在采用太阳能光伏电池的太阳能光伏冰箱上使用，这是因为太阳能光伏电池输出的是直流电，可以直接通过开关电路来驱动永磁无刷直流电动压缩机制冷而无须像交流电那样还要先整流滤波，这样总的效率又会有所提高。The DC compressor speed control system includes solar battery power sensor, power controller and frequency conversion speed control permanent magnet brushless DC electric compressor. The frequency conversion speed control three-phase asynchronous electric compressor consumes a part because the three-phase asynchronous electric compressor needs excitation. Electric energy leads to a decrease in motor efficiency. In order to further improve the energy-saving effect of the refrigerator, a permanent magnet brushless DC electric compressor with variable frequency speed regulation has been introduced. The motor of the permanent magnet brushless DC electric compressor adopts a permanent magnet brushless DC motor, and its rotor material The use of permanent magnets instead of squirrel-cage rotors saves the reactive excitation current, so its efficiency is 2% to 8% higher than that of induction motors of the same specification. The permanent magnet brushless DC electric compressor is also particularly suitable for use on solar photovoltaic refrigerators using solar photovoltaic cells, because the output of solar photovoltaic cells is direct current, which can directly drive the permanent magnet brushless DC electric compressor for refrigeration through the switching circuit It is not necessary to rectify and filter first like alternating current, so that the overall efficiency will be improved.

Claims

Translated fromChinese

1.一种太阳能光伏及温差发电驱动型直流冰箱，包括太阳能光伏发电系统、温差发电系统、蓄热水箱系统、直流压缩机调速系统、半导体温差电源控制电路系统，其特征在于，温差发电系统包含多级温差发电模块，太阳能光伏发电系统包含太阳能电池板和电源控制器，蓄热水箱系统包含了热水进水管、热水出水管、冷水进水管、冷水出水管，其中热水进水管和冷水出水管均与太阳能电池板相连接，进水管置于太阳能光伏发电系统中电池板底部、出水管置于电池板上部，半导体温差发电模块置于蓄热水箱内部，温差发电系统将蓄热水箱系统中温差转换为电能，通过半导体温差电源控制电路系统将能量送入直流压缩机调速系统。1. A solar photovoltaic and thermoelectric power generation driven DC refrigerator, comprising a solar photovoltaic power generation system, a thermoelectric power generation system, a hot water storage tank system, a DC compressor speed control system, and a semiconductor thermoelectric power supply control circuit system, characterized in that the thermoelectric power generation The system includes multi-stage temperature difference power generation modules, the solar photovoltaic power generation system includes solar panels and power controllers, and the hot water storage tank system includes hot water inlet pipes, hot water outlet pipes, cold water inlet pipes, and cold water outlet pipes. Both the water pipe and the cold water outlet pipe are connected to the solar panels. The water inlet pipe is placed at the bottom of the solar photovoltaic power generation system, the outlet pipe is placed at the top of the panel, and the semiconductor thermoelectric power generation module is placed inside the hot water storage tank. The thermoelectric power generation system will The temperature difference in the hot water storage tank system is converted into electric energy, and the energy is sent to the DC compressor speed control system through the semiconductor temperature difference power supply control circuit system.

2.根据权利要求1所述太阳能光伏及温差发电驱动型直流冰箱，其特征在于，所述太阳能电池板背部有粘结剂，将标准太阳能电池组件与蛇形铜管粘成一体，内部布置一块钢板作为支撑，其下部有保温层。2. According to claim 1, the DC refrigerator driven by solar photovoltaic and thermoelectric power generation is characterized in that there is an adhesive on the back of the solar cell panel, and the standard solar cell module and the serpentine copper tube are bonded into one body, and a block is arranged inside The steel plate is used as a support, and the lower part has an insulation layer.

3.根据权利要求1所述太阳能光伏及温差发电驱动型直流冰箱，其特征在于，所述蓄热水箱采用玻璃钢材料，温差发电系统的热端处用导热块，温差发电系统的冷端设置肋片，导热块采用导热性能良好的紫铜块，并在其上涂上导热性能良好的硅脂，与半导体温差发电模块良好的热接触。3. The DC refrigerator driven by solar photovoltaic and thermoelectric power generation according to claim 1 is characterized in that, the hot water storage tank is made of glass fiber reinforced plastic, the hot end of the thermoelectric power generation system uses a heat conduction block, and the cold end of the thermoelectric power generation system is set The ribs and the heat conduction block are copper blocks with good thermal conductivity, and coated with silicone grease with good thermal conductivity, so as to have good thermal contact with the semiconductor thermoelectric power generation module.

4.根据权利要求1所述太阳能光伏及温差发电驱动型直流冰箱，其特征在于，所述半导体温差电源控制电路系统包含升压模块、蓄电池的充放电保护电路及稳压模块，输出放电端有一肖特基二极管。4. The DC refrigerator driven by solar photovoltaic and thermoelectric power generation according to claim 1 is characterized in that, the semiconductor thermoelectric power supply control circuit system includes a booster module, a battery charge and discharge protection circuit and a voltage stabilization module, and the output discharge terminal has a Schottky diodes.