CN103075856A - Novel energy-saving refrigeration temperature-controlling box - Google Patents

Abstract

The invention relates to a new type of energy-saving refrigerated temperature control box, which includes a semiconductor refrigeration system, a 12V power supply system, a metal shell, a box fan and an insulated box. The insulated box consists of low thermal conductivity ceramic fiber paper from outside to inside, double High-density polyethylene sheet, extruded polystyrene insulation board, double-layer aluminum alloy or stainless steel plate, thin-walled copper tubes are arranged in the middle of the double-layer aluminum alloy or stainless steel plates, and the thin-walled copper tubes contain nanocomposite phase change materials inside. The outside of the low thermal conductivity ceramic fiber paper is a metal shell, and the 12V power supply system supplies power to the semiconductor refrigeration system. The cooling end of the semiconductor refrigeration system is connected to the inside of the insulation box, and the fan of the box is connected to the cooling fin at the cold end. It can not only solve the effect of food refrigeration and preservation when the household electricity is sufficient, but also work effectively in the case of power failure. It is suitable for medium and long-distance storage of food, vegetables, medical drugs, etc. at medium and low temperatures. The nanocomposite phase change material Application, so that the incubator achieves the purpose of energy saving.

Description

A new type of energy-saving refrigeration temperature control box

technical field

The invention relates to a refrigeration device, in particular to a novel energy-saving refrigeration temperature control box.

Background technique

With the continuous growth of our country's national economy and the continuous improvement of people's living standards, the refrigerated preservation of food and medicine has become an issue of increasing concern. Whether it is extremely perishable fruits and vegetables or food after freezing and refrigerating, it is very easy to breed at room temperature. A large number of microorganisms damage the health of the human body; the constant-temperature refrigerated medicines used in hospital first aid and transportation are prone to failure at room temperature, and the emergence of energy-saving refrigerated incubators can meet this requirement. In response to the national call for energy conservation and emission reduction, in the face of the growing shortage of energy, energy conservation and utilization have become a trend. The new energy-saving refrigerator temperature control box is not only suitable for the storage of a small amount of food in the family, but not for the perennial opening of the refrigerator, but also for constant temperature. The transportation of medicines also plays a certain positive role, and it will surely be able to spread to the homes of the general public.

Contents of the invention

The present invention is aimed at the problem of energy saving of refrigerators, and proposes a new type of energy-saving refrigerator temperature control box, which can solve the inaccurate temperature control of general refrigerators and incubators, and there is still sufficient cooling capacity after opening the door, especially after power failure. The effect of being able to store for a long time; miniaturization, open at any time, store cold energy, and achieve the purpose of energy saving.

The technical solution of the present invention is: a new type of energy-saving refrigeration temperature control box, including a semiconductor refrigeration system, a 12V power supply system, a metal shell, a box fan and an insulated box, and the insulated box includes low thermal conductivity ceramic fiber paper, double High-density polyethylene sheet, extruded polystyrene insulation board, double-layer aluminum alloy or stainless steel plate, thin-walled copper tubes are arranged in the middle of the double-layer aluminum alloy or stainless steel plates, and the thin-walled copper tubes contain nanocomposite phase change materials inside. There are double-layer high-density polyethylene plates on the outside of the double-layer aluminum alloy or stainless steel plate, and a hollow extruded polystyrene insulation board in the middle of the double-layer high-density polyethylene plate. Conductivity ceramic fiber paper, the outside of the low thermal conductivity ceramic fiber paper is a metal shell, the 12V power supply system supplies power to the semiconductor refrigeration system, the cooling end of the semiconductor refrigeration system is connected to the inside of the insulation box, and the box fan is connected to the cooling fin at the cold end.

The metal shell is made of aluminum alloy or stainless steel metal plate, and ceramic fiber paper with low thermal conductivity is adhered to the inner side.

The nanocomposite phase change material is a phase change material with a phase change temperature between -10°C and 6°C.

The volume of the nanocomposite phase-change material inside the thin-walled copper tube accounts for 5% to 8% of the total volume inside the box.

The beneficial effect of the present invention is that: the novel energy-saving refrigeration and temperature control box of the present invention can not only solve the effect of food refrigeration and preservation in the case of sufficient household electricity, but also work effectively in the case of power failure, and the phase change energy storage can Keep food fresh for hours without the refrigeration system working.

Description of drawings

Fig. 1 is the structural representation of the novel energy-saving refrigeration temperature control box of the present invention;

Fig. 2 is a side view of the inner layer of the new energy-saving refrigeration temperature control box of the present invention;

Fig. 3 is a layout diagram of the phase transition of thin-walled copper tubes in the novel energy-saving refrigeration temperature control box of the present invention.

Detailed ways

As shown in Figure 1, the structure schematic diagram of the novel energy-saving refrigeration temperature control box, said refrigeration temperature control box includes: a semiconductor refrigeration system 3, a 12V power supply system 2, a metal shell 1, a box fan 10 and an insulated box body.

The insulation box includes low thermal conductivity ceramic fiber paper 4, double-layer high-density polyethylene sheet 5, extruded polystyrene insulation board 6, double-layer aluminum alloy or stainless steel plate 8 from outside to inside; as shown in Figures 2 and 3 The shown inner double-layer aluminum alloy or stainless steel plate 8 is provided with a thin-walled copper tube 7 at a certain distance, and the thin-walled copper tube 7 contains a nanocomposite phase change material 11. The nanocomposite phase change material 11 is composed of hydroxyapatite, positive Two or more of dodecane, n-tetradecane, ethylene glycol and hexanoic acid are combined in a certain proportion; double-layer aluminum alloy or stainless steel plate 8 is equipped with double-layer high-density polyethylene plate on the outside 5. A hollow extruded polystyrene insulation board 6 is provided in the middle of the double-layer high-density polyethylene board 5 to increase its thermal resistance; the outer side of the double-layer high-density polyethylene board 5 is provided with low thermal conductivity ceramic fiber paper 4, Prevent the leakage of internal cooling and the entry of external heat; the outside of the low thermal conductivity ceramic fiber paper 4 is a metal shell 1 with a certain hardness of aluminum alloy or stainless steel plate; I-shaped steel or I-shaped aluminum alloy 9 is installed in the box The bottom of the box plays a certain load-bearing role for the food stored inside the box.

The outer side of the heat preservation box is made of aluminum alloy or stainless steel metal plate, and the inner side is adhered with low thermal conductivity ceramic fiber paper 4 to ensure insulation from external heat.

The nanocomposite phase change material 11 is composed of nanomaterials (such as hydroxyapatite, silicon dioxide, etc.), n-dodecane, n-tetradecane, ethylene glycol, hexanoic acid, ammonium chloride, etc. It is made by using a high-speed emulsifier or ultrasonic vibration, under the catalysis of the emulsifier, and compounded, and the phase transition temperature is between -10 and 6°C. The nanocomposite phase change material 11 added in the thin-walled copper tube 7 accounts for 5% to 8% of the total internal volume of the box.

The semiconductor refrigeration system 3 is powered by a 12V power supply system 2, and its cooling end is connected inside the box body. The low-power box fan 10 is connected to the cooling fin at the cold end, and the low-power box fan 10 blows out cooling capacity to meet the cooling capacity of the box body. sufficient supply.

When food or medicine needs to be refrigerated (fresh-keeping), first put the food into the refrigerated incubator, store cold and cool down through the low-noise semiconductor refrigeration system 3, and when the set refrigerated temperature is reached, the system will automatically power off, using The nano-composite phase-change material 11 in the tube 7 performs the function of cold storage and heat preservation. When the temperature in the heat preservation box fluctuates, the semiconductor refrigeration system 3 starts again to store cold and cool down, and so on. Nano-composite phase-change material 11, double-layer high-density polyethylene sheet 5 with hollow layer, box shell and low thermal conductivity ceramic fiber paper 4, multi-layer heat insulation to ensure internal cold storage; small power box inside the box The body fan 10 can increase the air flow in the space inside the box, and can make the cooling capacity more uniform.

Claims (4)

1. A novel energy-saving refrigerated temperature control box is characterized in that it includes a semiconductor refrigeration system, a 12V power supply system, a metal shell, a box fan and an insulated box; the insulated box includes low thermal conductivity ceramic fiber paper, a double-layer High-density polyethylene sheets, extruded polystyrene insulation boards, double-layer aluminum alloy or stainless steel plates; thin-walled copper tubes are arranged in the middle of the double-layer aluminum alloy or stainless steel plates, and the thin-walled copper tubes contain nano-composite phase change materials inside. There are double-layer high-density polyethylene boards on the outside of the two-layer aluminum alloy or stainless steel board, and a hollow layer of extruded polystyrene insulation board in the middle of the double-layer high-density polyethylene board. Low thermal conductivity ceramic fiber paper, the outside of the low thermal conductivity ceramic fiber paper is a metal shell, the 12V power supply system supplies power to the semiconductor refrigeration system, the cooling end of the semiconductor refrigeration system is connected to the inside of the insulation box, and the box fan is connected to the cooling fin at the cold end. 2. The novel energy-saving refrigerated temperature control box according to claim 1, characterized in that, the metal shell is made of aluminum alloy or stainless steel sheet metal, and ceramic fiber paper with low thermal conductivity is adhered to the inner side thereof. 3. The novel energy-saving refrigerated temperature control box according to claim 1, wherein the nanocomposite phase change material is a phase change material with a phase change temperature between -10°C and 6°C. 4. The new energy-saving refrigerator temperature control box according to claim 1, characterized in that the volume of the thin-walled copper tube containing the nanocomposite phase change material accounts for 5% to 8% of the total internal volume of the box.

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