CN2499270Y

CN2499270Y - Refrigerator carried in car

Info

Publication number: CN2499270Y
Application number: CN 01263494
Authority: CN
Inventors: 许俊成
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-10-30
Filing date: 2001-10-30
Publication date: 2002-07-10
Anticipated expiration: 2011-10-30

Abstract

The utility model relates to a refrigerator carried in car, comprising a base, a refrigerator body, an upper cover, an inner liner, a heat preservation layer, a radiator, a fan, a semiconductor caliber in electric connection with a power supply of the car, a control circuit and a display output circuit. The utility model has an undervoltage control circuit in electric connection with the power supply of the car and the semiconductor caliber, a refrigeration/heating transfer and timing control circuit and a temperature control circuit; the base of the refrigerator is arranged between the main driver seat and the second driver seat of the car. The utility model adopts the semiconductor caliber to carry out refrigeration and heating without using Freon, which is beneficial for environment protection; the utility model has the designed control circuit with a variety of functions and can effectively make use of car resources without limitation on the working time. The utility model also has the advantages of convenient transfer of refrigeration and heating, safe and reliable performance, long service life, energy saving, no influence on the power of cars, small volume, good fixing position, convenient use and top-open type capable of taking goods in the refrigerator by opening the upper cover, thereby meeting the need of customers fully.

Description

The carried in car refrigerator

(1) technical field:

The utility model relates to a kind of refrigerator that utilizes the semiconductor devices refrigerating/heating, particularly a kind of carried in car refrigerator.

(2) background technology:

A kind of conventional refrigerator of making refrigerant in the car trunk with fluorine Lyons that is contained in is arranged at present, and it is big to take volume, must get off to open boot and just can take article in the refrigerator, uses inconvenient.Also has a kind of refrigerator that is contained in the high-grade car boot; it utilizes the a/c system of car; therefrom draw a branch road, and refrigerator doors opens on rear deck seat, must open the a/c system of car; this refrigerator could be worked; the oil consumption that this just certainly will increase car influence the driving dynamics of car, and existing sedan air conditioner is still made refrigerant with fluorine Lyons; be unfavorable for environmental protection, use also inconvenient.Above-mentioned refrigerator all can only freeze and can not heat.

According to the knowledge of the applicant,, can produce low temperature by direct current (DC), freeze during its forward voltage, otherwise then heat with special semi-conducting material according to peltier effect and temperature-difference thermoelectric refrigeration principle.Utilize this principle can design a kind of fridge equipment that does not need refrigerant, but, fail so far to use as being suitable for practical car refrigerator design because it uses power issue, cooling and warming transfer problem, cold/hot state temperature control problem etc.

(3) summary of the invention:

Technical problem to be solved in the utility model is, overcomes the shortcoming of existing vehicle refrigerator, and a kind of carried in car refrigerator that utilizes semiconductor devices refrigerating/heating, easy to use, environment-friendly type is provided.

The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of carried in car refrigerator, its composition comprises base, casing, loam cake, inner bag, heat-insulation layer, radiator, fan, the quartz conductor movement, control circuit, the display output circuit that are electrically connected with the car power supply, it is characterized in that: (1), have under-voltage control circuit, refrigerating/heating conversion and the delay control circuit, the temperature-control circuit that are electrically connected with car power supply, quartz conductor movement; (2), the refrigerator base is installed between the positive assistant driver seat of car.

The utility model carried in car refrigerator utilizes quartz conductor movement refrigerating/heating; do not use fluorine Lyons, be of value to environmental protection, the design-calculated control circuit is multiple functional; effectively utilize the car power supply; work-hours is unrestricted, can freeze, and can heat again; the refrigerating/heating conversion is convenient; performance is safe and reliable, long service life, energy savings; power to car does not have influence; volume is little, and the installation site is good, has utilized this space that all has between the positive assistant driver seat of general car rightly; adopt top-opening type; open loam cake and just can take the interior article of refrigerator, easy to use, fully satisfy customer requirement.

(4) description of drawings:

Fig. 1 is the utility model carried in car refrigerator circuit block diagram.

Fig. 2 is the utility model carried in car refrigerator electrical schematic diagram.

Fig. 3 is the utility model carried in car refrigerator integral structure profile scheme drawing (solid).

(5) specific embodiment:

With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.

As shown in Figure 1, the utility model carried in car refrigerator has quartz conductor movement, control circuit, the display output circuit that is electrically connected with the car power supply, and control circuit comprises under-voltage control circuit, refrigerating/heating conversion and delay control circuit and temperature-control circuit.

As shown in Figure 2, quartz conductor movement D is connected with car power supply VCC by relay J 1, control circuit and display output circuit; Under-voltage control circuit is by sampling circuit RW1 reference voltage circuit R2, W1 and control circuit IC1 form, RW1 and R2, W1 inserts 2 of IC1 respectively, 3 pin, 1 pin of IC1 connects output circuit BG2, BG1,3 pin of IC1 are reference voltage, sampling value by sampling circuit RW1 is detected by 2 pin of IC1, when power line voltage is lower than setting value, the 1 pin output high level of IC1, light under-voltage/time dalay indicator light D4 (explanation about display output circuit sees for details hereinafter), make output circuit BG2 conducting, BG1 ends, J1 discharges, quartz conductor movement D and fan quit work, normal or during greater than setting value, 1 pin of IC1 is low level when power line voltage, under-voltage circuit is not worked; Refrigerating/heating conversion and delay control circuit are by change-over swith K, switching relay J2, time-delay discharge relay J, delayed charging circuit R3, C3, time-delay reference voltage circuit R4, R5, time-delay output circuit BG3, R8, D5, control circuit IC1 forms, change-over swith K one end is connected with power supply, one group of contact of the other end is connected with the time-delay output circuit by R7, R6 is passed through in one group of contact, J2, D3, J is connected with the time-delay output circuit, delayed charging circuit R3, C6 inserts 5 pin of IC1, time-delay reference voltage circuit R4, R5 inserts 6 pin of IC1,7 pin of IC1 connect output circuit BG2 after connecting the time-delay output circuit again, BG1, when two groups of contacts status of refrigerating/heating change-over swith K are changed, power supply is through R6 or R7, R8, all can light under-voltage/time dalay indicator light D4, make the BG2 conducting through D5 again, BG1 ends, J1 discharges, quartz conductor movement and fan quit work, be in the time-delay wait state, 6 pin of IC1 are the time-delay reference voltage, this moment, power supply charged to C3 by R3, the voltage that charges on the C3 reaches when delaying time reference voltage, the 7 pin output high level of IC1, make the BG3 conducting, BG2 ends, BG1 normal operation (this moment, D4 extinguished), thereby realized the time-delay in the conversion of refrigerating/heating mode of operation, the reliability of intensifier circuit, the protection movement, prolong its service life, because the abrupt release of J, the normally closed contact that is connected in parallel on the C3 is fallen the voltage short circuit on the C3, like this, when refrigerating/heating conversion next time, time delay circuit just can restart work; Temperature-control circuit is by temperature sensor RT1, resistance R 9, temperature regulation circuit RW2, control circuit IC2 forms, RT1 inserts 6 pin of IC2,5 pin of IC2 connect RW2,3 pin of IC2 are connected with the BG1 of output circuit, R9 is connected on 2 of IC2, between 6 pin, the electric current that can cause RT1 because of temperature traverse changes, this electric current loss in voltage that R9 produces of flowing through also changes thereupon, make 2 of IC2, has difference of potential between 6 pin, the 5 pin current potentials of IC2 have determined the evoked potential of IC2, by regulating RW2, the 3 pin outgoing levels of IC2 are changed by designing requirement, thereby make the BG1 conducting or end the temperature adjusting when realizing refrigerator work; Display output circuit comprises aerotron BG2, BG1, light-emitting diode D2, D4, D6, temperature display circuit LCD, digital temperature probe RT2, D2 is connected with power supply, be power light, D4 dichromatic LED anode is connected with R8 with 1 pin of IC1 respectively, and its negativing ending grounding is under-voltage/time dalay indicator light, the D6 dichromatic LED is connected with quartz conductor movement D, be working station indicator, LCD is connected with power supply and RT2, is used for the display refrigerator real time temperature.

Among the embodiment, the model of main circuit device is as follows: IC1 is TL741, and IC2 is NE555, and quartz conductor movement D is 12V12A, and LCD is integration module RT2, and radiator is made up of DIF240, and fan is 8*8cm ², 12V, 1380 rev/mins.

In order to make the utility model circuit more reliable; further feature is; as shown in Figure 2, cut off the electricity supply when being used to fan failure takes place (1), at the car power supply VCC anode coolant-temperature switch RT that connects; prevent temperature rise; the protection movement, (2), on car power supply VCC, connect an anti-reverse diode D1, power positive end connects the positive pole of D1; when being used to prevent that reversal of power from inserting, damage control circuit.

In embodiment as shown in Figure 3, the utlity model has and also have refrigerating/heating working station indicator D6, change-over swith K, temperature control adjusting knob RW2, temperature indicator LCD, under-voltage/time dalay indicator light D4, power light D2 on base 1, casing 5, loam cake 4, inner bag (not drawing among the figure), heat-insulation layer (not drawing among the figure), radiator 2, fan 3, the casing front end face.The wide * height of the long * of box sizes is 30*15*35cm in this example ³, be adapted to be mounted between the positive assistant driver seat of car.

Claims

1, carried in car refrigerator, its composition comprises base, casing, loam cake, inner bag, heat-insulation layer, radiator, fan, the quartz conductor movement, control circuit, the display output circuit that are electrically connected with the car power supply, it is characterized in that: (1), have under-voltage control circuit, refrigerating/heating conversion and the delay control circuit, the temperature-control circuit that are electrically connected with car power supply, quartz conductor movement; (2), the refrigerator base is installed between the positive assistant driver seat of car.

2, carried in car refrigerator according to claim 1, it is characterized in that under-voltage control circuit is made up of sampling circuit RW1, reference voltage circuit R2, W1 and control circuit IC1, RW1 and R2, W1 insert 2,3 pin of IC1 respectively, and 1 pin of IC1 connects output circuit BG2, BG1; Refrigerating/heating conversion and delay control circuit are by change-over swith K, switching relay J2, time-delay discharge relay J, delayed charging circuit R3C3, time-delay reference voltage circuit R4, R5, time-delay output circuit BG3, R8, D5, control circuit IC1 forms, change-over swith K one end is connected with power supply, one group of contact of the other end is connected with the time-delay output circuit by R7, R6 is passed through in one group of contact, J2, D3, J is connected with the time-delay output circuit, delayed charging circuit R3, C6 inserts 5 pin of IC1, time-delay reference voltage circuit R4, R5 inserts 6 pin of IC1, and 7 pin of IC1 connect output circuit BG2 after connecting the time-delay output circuit again, BG1; Temperature-control circuit is made up of temperature sensor RT1, resistance R 9, temperature regulation circuit RW2, control circuit IC2, and RT1 inserts 6 pin of IC2, and 5 pin of IC2 connect RW2, and 3 pin of IC2 are connected with the BG1 of output circuit, and R9 is connected between 2,6 pin of IC2.

3, carried in car refrigerator according to claim 2, it is characterized in that having with power supply bonded assembly light-emitting diode D2 as power light, has dichromatic LED D4, its anode is connected with R8 with 1 pin of IC1 respectively, its negativing ending grounding, as under-voltage/time dalay indicator light, have with quartz conductor movement D bonded assembly dichromatic LED D6 as working station indicator.

4,, it is characterized in that at the car power positive end coolant-temperature switch RT that connects according to claim 1 or 2 or 3 described carried in car refrigerators.

5, according to claim 1 or 2 or 3 described carried in car refrigerators, it is characterized in that on the car power supply, connecting an anti-reverse diode D1, power positive end connects the positive pole of D1.