CN202521945U - Solar-powered semiconductor rapid refrigeration device and water dispenser with same - Google Patents

Abstract

The utility model discloses a semiconductor rapid refrigeration device driven by solar energy, which comprises a semiconductor refrigeration sheet with a cold end wall surface and a hot end wall surface, a heat pipe with a heat receiving part and a heat release part, and a pipeline for cooling working fluid. The cold end wall surface of the semiconductor refrigeration sheet is attached to the outer wall of the pipeline, and the hot end wall surface of the semiconductor refrigeration sheet is attached to the heated part of the heat pipe; the box housing the pipeline, semiconductor refrigeration sheet, and heat pipe, the end cover of the box body There are solar panels that provide electricity to the peltier. The utility model also discloses a water dispenser with the refrigeration device. The device can not only achieve rapid cooling, is driven by solar energy, reduces energy consumption, and is convenient for outdoor use, but also can be miniaturized and has the characteristics of environmentally friendly working fluid, and can be used in various occasions.

Description

Solar-driven semiconductor rapid refrigeration device and water dispenser including the device

technical field

The utility model belongs to the refrigeration field, in particular to a solar-driven semiconductor rapid refrigeration device.

Background technique

With the development of society and the improvement of living standards, people's food requirements are increasing day by day. On the premise that food is safe to eat, people begin to pay more attention to its taste. Just as every food has its best preservation temperature, every drink also has its best drinking temperature. Existing research data have shown that, for example, when the temperature of beer is 10°C, not only is the drinking taste better, but at this time the human body has the lowest calorie attraction to malt, and its amino acid absorption rate is the highest. For another example, boiled water tastes the most refreshing when it is around 13°C. At this time, the physical and chemical properties of the water, such as surface tension, will change, which is very similar to the water of biological cells. It is easy to be absorbed, promotes metabolism, and enhances immunity. According to such characteristics, people have come up with various methods one after another, drinks are cooled. Usually, people use the compressor refrigeration method to cool the beverage to the corresponding temperature. However, the refrigerant in the compressor is easy to leak and pollute the atmosphere, and the noise is loud. In addition, semiconductor refrigeration is an environmentally friendly refrigeration method, which is based on the Peltier effect. When direct current passes through a galvanic couple composed of two different semiconductor materials in series, heat is absorbed and released at both ends of the galvanic couple. Utilizing its ability to absorb heat, it can be used as a refrigeration method to cool objects.

In the prior art, various refrigeration devices have been disclosed, such as the Chinese utility model patent application number 201120062509.0, "Semiconductor refrigeration temperature-controlled beverage machine", which includes a heat dissipation system, a water storage tank, a water pump and a semiconductor refrigeration system. Among them, The semiconductor refrigeration system is composed of a semiconductor refrigeration sheet and a beverage deflector. Although the system can continuously release beverages at the optimum drinking temperature, the temperature can be controlled and the dynamic cooling effect can be achieved. However, this device needs power supply, is not suitable for carrying out, and has a complicated structure, requiring a lot of equipment such as a water pump and a heat dissipation system, and also needs a large fan for cooling circulating water, and a large water tank is required to provide circulating water. Another example is the Chinese invention patent with the application number of 200910205235.3, "semiconductor refrigeration system", which uses semiconductors for refrigeration. , this scheme does not have the characteristics of rapid cooling.

Another example is the Chinese utility model patent whose application number is 201020242652.3, "semiconductor refrigeration sheet condensation device", which discloses a semiconductor refrigeration sheet condensation device. An air inlet and an air outlet are arranged in the direction of the sheet, and a suction fan is arranged corresponding to the air inlet. An exhaust fan is arranged corresponding to the air outlet. The application of this device is a laboratory, and the cooling substance is steam. The purpose is to save cooling water consumption, and an external power supply is required. Therefore, this device is not suitable for family and office occasions, is not suitable for cooling liquid, and cannot achieve the effect of rapid cooling.

Another example is the Chinese utility model patent whose application number is 200420045919.4, which discloses a semiconductor refrigeration system. The purpose of this device is to reduce the temperature difference between the hot end and the outside air to improve the efficiency of the system and is used in refrigerators. However, rapid cooling cannot be achieved. At the same time, its structure is relatively complicated, and it is not easy to move. It needs an external power supply, and it is not conducive to portability for outdoor use.

In summary, there are various advantages and disadvantages in the existing patents, but none of them provide a refrigeration device that can be conveniently used outdoors.

Utility model content

The utility model provides a semiconductor rapid refrigeration device driven by solar energy. The device can not only realize rapid refrigeration, but is driven by solar energy, reduces energy consumption, is convenient for outdoor use, and can also be miniaturized. on various occasions.

A solar-driven semiconductor rapid refrigeration device, including a semiconductor cooling sheet with a cold end wall and a hot end wall, and a heat pipe with a heated part and a heat releasing part, and also includes:

In the pipeline through which the working fluid is to be cooled, the cold end wall of the semiconductor refrigeration sheet is attached to the outer wall of the pipeline, and the hot end wall of the semiconductor refrigeration sheet is attached to the heated part of the heat pipe;

A box housing the pipes, semiconductor cooling chips, and heat pipes, the end cover of the box body is equipped with a solar panel that provides current for the semiconductor cooling chips.

The working principle of the solar-driven semiconductor rapid refrigeration device described in the utility model is: use the semiconductor refrigeration device based on the Peltier effect to provide the required cooling capacity, and attach the semiconductor refrigeration sheet around the pipeline. The nozzle enters the pipe, which flows from top to bottom due to gravity. The wall surface of the cold end of the semiconductor refrigerating sheet is close to the pipeline, and the cooling capacity of the cold end of the semiconductor refrigerating sheet is transferred to the working medium to be cooled in the pipeline, so as to realize the dynamic cooling and cooling of the working medium to be cooled during the movement. Since the temperature of the cold end of the semiconductor refrigeration sheet is affected by the temperature of the hot end during cooling, that is, the temperature of the hot end minus the temperature drop that the semiconductor refrigeration sheet itself can produce is the temperature of the cold end. Because the heat pipe can make the heat transfer medium in the heat pipe flow under the action of gravity and transfer heat efficiently, discharge the heat, and realize the constant temperature of the wall surface of the hot end of the semiconductor refrigeration sheet. Therefore, the temperature of the cold end of the peltier can be kept constant. The device is equipped with solar panels, which can use solar energy to generate electricity to drive the entire device.

The heat-receiving part of the heat pipe refers to the part in the heat pipe where the heat-transfer working fluid absorbs heat.

The exothermic part of the heat pipe refers to the part in the heat pipe where the heat transfer medium releases heat.

According to the actual situation, it can be determined that the required temperature can be reached when finally flowing out of the pipeline according to the length of the pipeline design and the number of semiconductor refrigeration chips arranged on the wall surface of the pipeline.

The semiconductor refrigerating sheet is commercially available, and the commercially available semiconductor refrigerating sheet is generally rectangular, and the semiconductor refrigerating sheet is a plurality of rectangular semiconductor refrigerating sheets, and the cold end wall of the semiconductor refrigerating sheet passes through the first heat conductor and the The pipes are attached.

The semiconductor cooling sheets are several rectangular semiconductor cooling sheets, and the gap between two adjacent semiconductor cooling sheets and the heated part of the heat pipe is provided with a second heat conductor.

The semiconductor refrigerating sheet realizes heat conduction through these heat conductors, so as not to affect the effect of the refrigerating device. Wherein, the first heat conductor and the second heat conductor are high-efficiency heat conduction materials, such as heat conduction silicone grease and the like. In order to improve the heat transfer effect, the semiconductor cooling fins can be directly processed into a ring shape, and the semiconductor cooling fins are distributed around the outer wall of the pipeline.

Preferably, the pipeline is helical or annular. When the semiconductor cooling plate is rectangular, the pipeline is set in a ring shape; when the semiconductor cooling plate is annular, the pipeline is set in a spiral shape; this arrangement saves the pipeline layout space on the one hand, and on the other hand does not affect the working fluid to be cooled in the pipeline. Cooling effect.

Preferably, the box body is provided with inlets and outlets for the working fluid to be cooled to enter or leave the pipeline. The nozzles of the pipelines are respectively connected with the inlet and the outlet of the box body, so that the refrigeration device is convenient for the working medium to be cooled to enter or leave.

Preferably, the box is provided with a switch for controlling power on and off. The operation or stop of the refrigeration device is controlled by the switch, which is convenient for operation.

Preferably, the box body is provided with cooling air holes. If the temperature of the heat pipe is high, the cooling vents can assist in dissipating part of the heat.

The pipeline is a heat pipe, and the material of the pipeline can be selected, such as various metal materials (such as stainless steel, iron, aluminum, copper, etc.), plastic or glass and other heat-conducting materials.

In order to make the equipment convenient, semiconductor refrigeration chips, pipes, heat conductors, heat pipes, etc. can be made into a whole and put into the box, and the openings of the pipes are respectively connected with the inlet and outlet of the box.

The refrigerating device can not only be used alone, but also can be placed in existing equipment, such as water dispensers, to quickly refrigerate drinking water, and has wide applications.

The utility model also provides a water dispenser including the refrigeration device, which is equipped with the above-mentioned semiconductor rapid refrigeration device driven by solar energy. Refrigeration.

A water dispenser including the refrigeration device includes a water dispenser casing, the solar-driven semiconductor rapid refrigeration device is arranged in the water dispenser casing, and the solar battery panel is arranged on the water dispenser casing.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The structure of the utility model is simple, and the cooling time of the whole refrigeration device is short, so that rapid refrigeration can be realized.

(2) The utility model utilizes the heat transfer characteristics of the heat pipe, and arranges the heat pipe in the refrigeration device. The heat receiving part and the heat releasing part of the heat pipe are simple in structure and flexible in position, and the separation distance between the sink and the source can be adjusted according to the actual needs and the heat pipe used. It depends on performance. The utility model can realize zero leakage between cold and heat heat transfer working fluids in the heat pipe.

(3) The utility model utilizes the advantages of semiconductor refrigeration, which has no gas working fluid, small volume, long service life, and is suitable for home use.

(4) The utility model can also be placed in existing equipment, such as water dispensers, to rapidly cool drinking water.

(5) The utility model is driven by solar energy, which can save energy significantly without external power supply, and is especially suitable for outdoor use in hot summer.

Description of drawings

Fig. 1 is a schematic layout of a refrigeration device of the present invention;

Fig. 2 is a side view of the refrigeration device shown in Fig. 1;

Fig. 3 is a top view of the refrigeration device shown in Fig. 1;

Fig. 4 is A-A cross-sectional view of the refrigeration device shown in Fig. 1;

Fig. 5 is a schematic diagram of the layout of the heat pipes of the refrigeration device of the present invention;

Fig. 6 is a side view of the heat pipe of the refrigeration device shown in Fig. 5;

Fig. 7 is a schematic diagram of the layout of the rectangular semiconductor refrigeration sheet of the refrigeration device of the present invention;

Fig. 8 is a schematic diagram of the layout of the water dispenser including the refrigeration device of the present invention;

Fig. 9 is a schematic diagram of the semiconductor fast cooling device in the water dispenser shown in Fig. 8;

Fig. 10 is a schematic diagram of the layout of the ring-shaped semiconductor refrigeration sheet of the refrigeration device of the present invention;

Fig. 11 is a top view of the semiconductor rapid refrigeration device shown in Fig. 9;

Fig. 12 is a side view of the semiconductor rapid refrigeration device shown in Fig. 9;

Fig. 13 is a sectional view of A-A in Fig. 9 .

Among them: 1. Box body; 2. Solar panel; 3. Switch; 4. Outlet; 5. Import; 6. Water dispenser box; 7. Handle; , pipeline; 10, semiconductor cooling chip; 11, heat pipe; 12, cooling air hole.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

Example 1

Referring to Figures 1-7, a solar-driven semiconductor rapid refrigeration device includes a box body 1, a solar panel 2, a switch 3, an outlet 4, an inlet 5, a semiconductor cooling chip 10, a heat conductor 8, a pipe 9, and a heat pipe 11. Wherein, the cold end wall surface of the semiconductor refrigerating sheet 10 is closely attached to the pipe 9, and the semiconductor refrigerating sheet 10 is made into a rectangular surrounding shape in each layer, and the length of the rectangular side is 100.11mm. The first heat conductor 8a such as silicon grease, the thermal end wall surface of the semiconductor refrigeration sheet 10 is close to the heat receiving part of the heat pipe 11, and the intermediate space between two adjacent semiconductor refrigeration sheets 10 and the heat receiving part of the heat pipe 11 is provided with a second heat conductor 8b. Refrigerating plate 10, pipe 9, heat conductor 8, and heat pipe 11 are made into a whole and put into box 1. There are inlet 5 and outlet 4 on box 1. The end cover of box 1 is equipped with solar panels. 2. The inclination angle θ of the pipeline 9 is 2.74°.

In this embodiment, under the condition that the external environment is 25-41° C. in summer, drinking water is put into the refrigerating device outdoors to cool it down quickly. At this time, the internal diameter D of the pipeline 9 is 10 mm, the pipeline 9 is an aluminum tube, and the type of the semiconductor refrigeration chip 10 is shown in Table 1. The working principle of the device is: the drinking water flows into the pipeline 9 from the inlet 5, and due to gravity, it flows from top to bottom, and at the same time, contacts with the wall of the pipeline 9 . Because the cold end wall of the semiconductor refrigerating sheet 10 is close to the pipeline 9, and the intermediate space between the cold end wall of the semiconductor refrigerating sheet 10 and the pipeline 9 and between two adjacent semiconductor refrigerating sheets 10 and the heated part of the heat pipe 11 is made of first heat-conducting silicone grease or the like. The heat conductor 8a and the second heat conductor 8b conduct heat, so the cooling capacity of the cold end of the semiconductor refrigeration chip 10 can be transferred to the water in the pipeline 9, so as to realize the dynamic cooling of drinking water during exercise. Because the temperature of the cold end of the semiconductor refrigerating sheet 10 is affected by the temperature of the hot end during refrigeration, that is, the temperature of the hot end minus the temperature drop that the semiconductor itself can produce is the temperature of the cold end. The heat-receiving part, and the heat-radiating part of the heat pipe 11 has a certain distance from the pipeline 9, and the heat is discharged by utilizing the efficient heat transfer of the heat pipe 11, so that the temperature of the hot end of the semiconductor cooling chip 10 is constant. Therefore, the temperature of the cold end of the peltier refrigerating sheet 10 can be kept constant. Power is provided by the solar panel 2 to drive the whole device to work. According to the length of the pipeline design and the number of semiconductor refrigeration chips 10 arranged on the wall of the pipeline 9, and the corresponding working conditions, when the water intake is 200ml, the simulation calculation results are shown in Table 2; when the water intake changes to 200-600ml, the simulation calculation The results are shown in Table 3.

Table 1 Models of semiconductor refrigeration chips used

Table 2 Analysis when the required refrigeration temperature is reached under different ambient temperatures

Table 3 Time to reach drinking temperature under different ambient temperatures and different volumes of drinking water

It can be seen from Table 3 that when the volume of water is 200ml-600ml, the increase of the external ambient temperature will increase the cooling time of the entire refrigeration device. However, the whole time is still within 8s, which can achieve rapid cooling and realize Water cooling effect.

Example 2

Referring to Figures 5, 6 and 8-13, a water dispenser including a solar-driven semiconductor rapid refrigeration device includes a water dispenser cabinet 6, a cabinet 1, a solar panel 2, a handle 7, a switch 3, an outlet 4, and an inlet 5 , semiconductor refrigeration sheet 10, pipeline 9, heat pipe 11, heat dissipation air hole 12. Wherein, the casing 1 of the solar-driven semiconductor rapid refrigeration device is placed in the water dispenser casing 6, the semiconductor refrigeration sheet 10 is made into a ring shape, the semiconductor refrigeration sheet 10 is distributed around the outer wall of the pipeline 9, and the cold end wall of the semiconductor refrigeration sheet 10 is close to The pipeline 9 and the hot end wall of the semiconductor cooling chip 10 are close to the heated part of the heat pipe 11 to reduce the volume of the device. An inlet 5 and an outlet 4 are provided, and the inlet 5 and the outlet 4 are respectively connected with the water inlet and the water outlet of the water dispenser. And there is a handle 7 at the upper end of the box body 1 , and a cooling air hole 12 is arranged at the top of the box body 1 . One side of the solar cell panel 2 and the water dispenser casing 6 is integrated, that is, one side of the water dispenser casing 6 is made into a solar cell panel 2 .

This embodiment can be used to provide cooling drinking water required by families in summer, so as to improve the taste and relieve heat and cool down. Water dispenser casing 6 has one side of solar circuit board 2 to be placed on the window edge of family or office, generates electricity by solar panel 2, and drives whole device to work. Its working principle is: the semiconductor refrigeration sheet 10 is pasted around the pipeline 9, and the pipeline 9 is made into a spiral shape, and the water in the water dispenser casing 6 flows into the pipeline 9 from the inlet 5, and it flows from top to bottom due to gravity. The wall surface of the cold end of the semiconductor refrigerating sheet 10 is close to the pipeline 9, and the cooling capacity of the cold end of the semiconductor refrigerating sheet 10 is transferred to the water in the pipeline 9, thereby realizing dynamic cooling of drinking water during exercise. Because the temperature of the cold end of the semiconductor refrigerating sheet 10 is affected by the temperature of the hot end during refrigeration, that is, the temperature of the hot end minus the temperature drop that the semiconductor refrigerating sheet 9 itself can produce is the temperature of the cold end. Paste the heated part of the heat pipe 11, and the heat release part of the heat pipe 11 has a certain distance from the pipe 9, the heat is transferred to the heat transfer medium in the heat pipe 11, and the heat transfer medium in the heat pipe 11 absorbs heat After becoming a gaseous state, the heat is released at the heat release part of the heat pipe 11, so that the temperature of the hot end of the semiconductor cooling chip 10 is constant. Therefore, the temperature of the cold end of the peltier refrigerating sheet 10 can be kept constant. According to the designed length of the pipeline 9 and the quantity of semiconductor refrigeration chips 10 arranged on the wall surface of the pipeline 9, and the corresponding working conditions, the simulation calculation is carried out. At this time, in this refrigeration device, the spiral radius R of the pipeline 9 is taken as 100mm, and the pipeline 9 is inclined Angle θ=1.7 °, the pipeline 9 is an aluminum tube, and the model of the semiconductor refrigeration chip 10 is shown in Table 4. When the volume of water is 200-600ml, the simulation calculation results are shown in Table 5.

Table 4 Models of Semiconductor Refrigerators Used

Table 5 The time to reach the drinking temperature under different ambient temperatures and different drinking water volumes

It can be seen from Table 5 that when the volume of water is 200ml-600ml, the increase of the external ambient temperature will increase the cooling time of the water dispenser. However, the whole time is still within 8s, which can realize rapid cooling and achieve Cooling effect of water.

Claims (10)

1. the semiconductor quick cooling device of a Driven by Solar Energy comprises it is characterized in that semiconductor chilling plate that has cold junction wall and hot junction wall and the heat pipe that has heated portion and heat release part, also comprises:

The pipeline that working medium to be cooled flows, the cold junction wall of said semiconductor chilling plate pastes with pipeline outer wall mutually, and the hot junction wall of semiconductor chilling plate pastes with the heated portion of heat pipe mutually;

The casing that holds said pipeline, semiconductor chilling plate, heat pipe, the end cap of said casing is equipped with the solar panel that electric current is provided for semiconductor chilling plate.

2. the semiconductor quick cooling device of Driven by Solar Energy according to claim 1 is characterized in that, said semiconductor chilling plate distributes around the outer wall of said pipeline.

3. the semiconductor quick cooling device of Driven by Solar Energy according to claim 1 is characterized in that, said semiconductor chilling plate is the semiconductor chilling plate of several rectangular shapes, and the cold junction wall of semiconductor chilling plate pastes with pipeline through first heat carrier mutually.

4. the semiconductor quick cooling device of Driven by Solar Energy according to claim 1; It is characterized in that; Said semiconductor chilling plate is the semiconductor chilling plate of several rectangular shapes, and the space between the heated portion of adjacent two semiconductor chilling plates and heat pipe is provided with second heat carrier.

5. the semiconductor quick cooling device of Driven by Solar Energy according to claim 1 is characterized in that, said pipeline is helical form or ring-type.

6. the semiconductor quick cooling device of Driven by Solar Energy according to claim 1 is characterized in that, said casing is provided with import and the outlet that supplies working medium to be cooled to get into pipeline or leave pipeline.

7. the semiconductor quick cooling device of Driven by Solar Energy according to claim 1 is characterized in that, said pipeline is a heat pipe.

8. the semiconductor quick cooling device of Driven by Solar Energy according to claim 1 is characterized in that, said casing is provided with the switch that the control power supply opens and closes.

9. the semiconductor quick cooling device of Driven by Solar Energy according to claim 1 is characterized in that, said casing is provided with the heat radiation pore.

10. water dispenser that comprises this refrigerating plant; Comprise the water dispenser casing; It is characterized in that be provided with the semiconductor quick cooling device of each said Driven by Solar Energy of claim 1～9 in the said water dispenser casing, said solar panel is located on the said water dispenser casing.

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