CN2505782Y

CN2505782Y - Solar semiconductor refrigerator

Info

Publication number: CN2505782Y
Application number: CN 01239142
Authority: CN
Inventors: 王如竹; 代彦军
Original assignee: Shanghai Jiaotong University
Current assignee: Shanghai Jiaotong University
Priority date: 2001-04-30
Filing date: 2001-04-30
Publication date: 2002-08-14
Anticipated expiration: 2011-04-30

Abstract

A solar semiconductor refrigerator mainly comprises a solar cell array, a controller, an accumulator and a semiconductor refrigeration device, wherein, the solar cell array is positioned at a solar irradiation surface or the superface of a refrigerator; through connecting lines, one end of the solar cell array is connected with the controller arranged at one side of the front face of the refrigerator and also is connected with the hot junction end of the semiconductor refrigeration device arranged at the other side of the refrigerator through the controller, while the other end of the solar cell array is directly connected with the cold junction of the semiconductor refrigeration device; one end of the accumulator which is arranged inside the refrigerator is connected with the controller, while the other end of the accumulator is connected between the solar cell array and the controller.

Description

Solar semiconductor refrigerator

The utility model relates to a kind of solar energy refrigerator, particularly a kind of solar semiconductor refrigerator belongs to the solar energy equipment field.

Refrigerating device for refrigerator is used for food fresh keeping, enters into huge numbers of families already, for the living standard of improving people has been brought into play huge effect.Yet under the scorching sun, when people's operation in the open air, as geological prospecting, archaeology etc., perhaps when people's outing out of doors, by bus whilst on tour but is difficult to enjoy the facility that refrigerator brings, therefore develops a kind of refrigerated plant for foodstuffs light, that be easy to carry about with one and have great importance for addressing this problem.Take in the background technology in the refrigeration heat mode, by with conversion of solar energy being heat energy driving refrigerating plant refrigeration, common have solar powered adsorption refrigeration and a solar energy absorption type refrigeration etc., the advantage of these systems be construct simpler, easy to maintenance, and environmental friendliness, but its weight is big, not portable, be difficult to satisfy the requirement that miniaturization is used.

The purpose of this utility model is to overcome deficiency of the prior art, and a kind of solar semiconductor refrigerator is provided.

The technical solution of the utility model is as follows: the utility model mainly comprises: solar battery array, controller, battery and semiconductor cooling device, solar battery array is positioned at the end face of the face of shining upon or refrigerator, pass through line, one end links to each other with the controller that is arranged on the positive side of refrigerator, via controller links to each other with the hot junction of the semiconductor cooling device that is arranged on the refrigerator opposite side again, the other end directly links to each other with the cold junction of semiconductor cooling device, an end that is arranged on the battery in the refrigerator is connected with controller, and the other end is connected between solar battery array and the controller.Semiconductor cooling device mainly comprises: the fin that places the refrigerator outside, a hot junction that places the fin inboard, one places the cold junction that is positioned at the inboard, hot junction within the casing, is linked to each other with P type thermoelectric element by N type thermoelectric element between hot junction and the cold junction, and this two classes thermoelectric element is spaced.Photovoltaic cell can be selected monocrystalline silicon for use, the solar cell of form such as polysilicon and non-crystalline silicon, battery capacity can be configured according to the size of refrigerator refrigerating capacity, battery can be selected lead-acid battery etc. for use, carry out suitable serial or parallel connection by the refrigerator actual operating conditions, daytime, solar battery array is accepted solar energy, change sunshine into electric energy by the opto-electronic conversion effect, the direct current of output, a part is the semiconductor supply refrigerator directly, and another part enters battery stores, in order to cloudy day or use in evening, controller makes solar battery array output impedance and equivalent load impedance coupling, make power output be in optimum state and overcharging all the time to energy storage device, cross and put row control into, because semi-conductive Peltier effect, the cold junction place, the sense of current by semiconductor joint place is to tie p type knot by the n type, and temperature descends and absorbs heat, place, hot junction, the sense of current by semiconductor joint place is to tie n type knot by the p type, and temperature rises and outside release heat.

The utility model 30～150 ℃ of the temperature difference on a large scale in regulate refrigerating capacity, by DC powered, need not the current inversion device, reduced the repeatedly loss of conversion generation of energy, and do not had mechanical rotating part, the operation noiselessness, friction does not have wearing and tearing, long service life, easy maintenance is to utilizing novel energy, reducing and pollute, promote that environmental protection has positive effect.Small portable solar semiconductor refrigerator with 80-100 watt of refrigerating capacity of exploitation is an example, if per day irradiation level is 700 a watts/square meter, per day exposure time 8 hours, solar energy photoelectric conversion efficient 13%, then use the solar battery array of 2 square meters, can can satisfy needing of the outdoor outing of 2-3 people, viaticum and beverage refrigeration for the about 10-14 of refrigerator continuous operation hour.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 the utility model structural representation (one)

Fig. 2 the utility model structural representation (two)

As depicted in figs. 1 and 2, the utility model mainly comprises: solar battery array 1, controller 2, battery 3 and semiconductor cooling device 4, solar battery array 1 is positioned at the end face of the face of shining upon or refrigerator, pass through line, one end links to each other with the controller 2 that is arranged on the positive side of refrigerator, via controller 2 links to each other with the hot junction 6 of the semiconductor cooling device 4 that is arranged on the refrigerator opposite side again, the other end directly links to each other with the cold junction 7 of semiconductor cooling device 4, an end that is arranged on the battery 3 in the refrigerator is connected with controller 2, and the other end is connected between solar battery array 1 and the controller 2.Semiconductor cooling device 4 mainly comprises: the fin 5 that places the refrigerator outside, a hot junction 6 that places fin 5 inboards, one places the cold junction 7 that is positioned at 6 inboards, hot junction within the casing, linked to each other with P type thermoelectric element 8 by N type thermoelectric element 9 between hot junction 6 and the cold junction 7, this two classes thermoelectric element is spaced.

Claims

1, a kind of solar semiconductor refrigerator, mainly comprise: solar battery array (1), controller (2), battery (3), it is characterized in that also comprising: semiconductor cooling device (4), solar battery array (1) is positioned at the end face of the face of shining upon or refrigerator, pass through line, one end links to each other with the controller (2) that is arranged on the positive side of refrigerator, via controller (2) links to each other with the hot junction (6) of the semiconductor cooling device that is arranged on the refrigerator opposite side (4) again, the other end directly links to each other with the cold junction (7) of semiconductor cooling device (4), an end that is arranged on the battery (3) in the refrigerator is connected with controller (2), and the other end is connected between solar battery array (1) and the controller (2).

2, this solar semiconductor refrigerator according to claim 1, its feature is that also semiconductor cooling device (4) mainly comprises: the fin (5) that places the refrigerator outside, one places the inboard hot junction (6) of fin (5), and one places the cold junction (7) that is positioned at inboard, hot junction (6) within the casing.

3, this solar semiconductor refrigerator according to claim 2, its feature also are to be linked to each other with P type thermoelectric element (8) by N type thermoelectric element (9) between hot junction (6) and the cold junction (7), and this two classes thermoelectric element is spaced.