CN211668081U - Portable semiconductor vehicle-mounted small refrigerator - Google Patents

Abstract

The utility model belongs to the technical field of on-vehicle refrigerator, concretely relates to portable semiconductor vehicle-mounted small refrigerator. A portable semiconductor vehicle-mounted small refrigerator comprises a shell, wherein an upper cover used for sealing the shell is movably connected to the shell, a storage chamber and a refrigeration chamber are formed in the shell, and a heat insulation layer and an inner heat insulation layer are arranged in the storage chamber; the refrigerator is characterized in that a semiconductor temperature difference refrigerator is arranged in the refrigerating chamber, the temperature difference refrigerator carries out refrigerating operation on the storage chamber, the heat preservation layer is made of graphene phase change materials, the heat preservation layer covers the inside of the storage chamber, an outer heat insulation layer is arranged on the outer wall of the shell, and the outer heat insulation layer and the inner heat insulation layer are made of high silica glass fibers. The utility model has the advantages of simple structure, small, thermal insulation performance is superior, small in noise, need not the compressor, with semiconductor refrigeration material, use in a flexible way, can be portable, can place in the space of interior energy circular telegram, adopt cascaded circular telegram to avoid the starting current too high moreover and burn the phenomenon of breaking the interior fuse of car.

Description

Portable semiconductor vehicle-mounted small refrigerator

Technical Field

The utility model belongs to the technical field of on-vehicle refrigerator, concretely relates to portable semiconductor vehicle-mounted small refrigerator.

Background

The refrigerator is a refrigerating device for keeping constant low temperature, and is a civil product for keeping food or other articles in a constant low-temperature cold state. The cabinet or the box is provided with a compressor, an ice maker for freezing and a storage box with a refrigerating device.

The traditional refrigerator refrigeration mode adopts a compressor for refrigeration, the mode generally uses refrigeration media (such as Freon) for assisting in refrigeration, but the media adopted by the refrigeration mode have leakage danger, are not environment-friendly and have high noise, and simultaneously, because of the compressor, the volume of the refrigerator is generally large, and the heat preservation effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, it is small, thermal insulation performance is superior, and the noise is little, need not the compressor, and with semiconductor refrigeration material, use nimble portable semiconductor vehicle-mounted little refrigerator.

The purpose of the utility model is realized like this:

a portable semiconductor vehicle-mounted small refrigerator comprises a shell, wherein an upper cover used for sealing the shell is movably connected to the shell, a storage chamber and a refrigeration chamber are formed in the shell, and a heat insulation layer and an inner heat insulation layer are arranged in the storage chamber; a semiconductor temperature difference refrigerator is arranged in the refrigerating chamber and used for refrigerating the storage chamber;

a plurality of supporting plates are arranged in the refrigerating chamber, and a control cavity for installing a circuit board is formed between the adjacent supporting plates.

Preferably, the heat preservation layer is made of graphene phase change materials and covers the inside of the storage chamber.

Preferably, an outer heat insulation layer is arranged on the outer wall of the shell, and the outer heat insulation layer and the inner heat insulation layer are made of high silica glass fibers.

Preferably, a power line connected with the semiconductor thermoelectric refrigerator is arranged in the control cavity, and an inverter for changing voltage is detachably arranged on the power line.

Preferably, a temperature meter for measuring the temperature in the storage chamber is arranged on the shell.

Preferably, the side wall of the refrigerating chamber is provided with an air outlet for discharging heat in the refrigerating chamber.

Preferably, the semiconductor thermoelectric refrigerator comprises a plurality of substrates, a plurality of N-type and P-type semiconductor materials are arranged between the substrates, and the N-type and P-type semiconductor materials are connected through a guide plate.

Preferably, a handle for carrying the shell is arranged on the side wall of the shell.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the utility model discloses a portable semiconductor vehicle-mounted small refrigerator adopts that semiconductor thermoelectric cooler refrigerates, adopts the refrigerated mode of compressor before comparing, and semiconductor thermoelectric cooler's volume is littleer for the whole volume of refrigerator diminishes, and it is more convenient to use, and the design of interior heat-insulating layer and heat preservation simultaneously enables the heat preservation effect of refrigerator better, under the condition of outage, still can keep long-time low temperature state. Compared with a compressor, the semiconductor temperature difference refrigerator has smaller noise and improves the use effect.

Drawings

Fig. 1 is a schematic view of the overall structure in the embodiment of the present invention.

Fig. 2 is a sectional view of the embodiment of the present invention.

Fig. 3 is an enlarged view of the area a of fig. 2.

Fig. 4 is a schematic diagram of a semiconductor thermo-cooler.

Reference numerals: 1-a shell; 2-covering the upper cover; 3-a storage chamber; 4-a refrigeration chamber; 5-insulating layer; 6-inner heat insulation layer; 7-semiconductor thermoelectric refrigerator; 8-an outer insulating layer; 9-a support plate; 10-a converter; 11-a temperature meter; 12-air outlet 13-clapboard; 14-substrate.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, a portable semiconductor small vehicle-mounted refrigerator comprises a housing 1, wherein an upper cover 2 is connected to the housing 1, the upper cover 2 is used for sealing the housing 1 and is matched with the housing 1 to form a sealed box body, a partition plate 13 is arranged in the housing 1, the housing 1 is divided into an upper layer and a lower layer by the partition plate 13, the upper layer is a storage chamber 3, and the lower layer is a refrigerating chamber 4. The storage chamber 3 is internally provided with a heat insulation layer 5 and an inner heat insulation layer 6. Set up a plurality of semiconductor thermoelectric cooler 7 in the refrigeration room 4, semiconductor thermoelectric cooler 7's cold junction is the refrigeration of storing room 3, and semiconductor thermoelectric cooler 7's quantity can select two machines formula, four machines formula or six machines formula according to the demand of reality, and along with the increase of semiconductor thermoelectric cooler 7 quantity, the volume of refrigerator also increases thereupon.

What this design adopted is semiconductor temperature difference refrigerator 7, adopt semiconductor temperature difference refrigerator 7 refrigeration only to need the base plate, the semiconductor material of N type and P type, and mechanical compression refrigerating system needs the compressor, the condenser, the filter, the solenoid valve, the expansion valve, the evaporimeter, the reservoir, refrigerant etc., save many parts before this application compares, make refrigerating system's volume reduce, thereby can shorten the holistic volume of refrigerator, the noise that semiconductor temperature difference refrigerator 7 produced in work engineering is very little, when using this refrigerator in the car, the noise of production can not cause the discomfort to personnel in the car. 6

As shown in fig. 4, the semiconductor thermoelectric cooler 7 basically comprises two substrates 14, wherein N-type and P-type semiconductor materials are arranged in the middle of the substrates 14, bismuth telluride is adopted as the semiconductor material, and the semiconductor elements are electrically connected in series by a guide plate.

The working principle is as follows: when an N-type semiconductor material and a P-type semiconductor material are connected to form a galvanic couple pair, energy transfer can be generated after direct current is switched on in the circuit, the current absorbs heat from a joint of the N-type element flowing to the P-type element, becomes a cold end, releases heat from a joint of the P-type element flowing to the N-type element, and becomes a hot end. The heat absorption and heat release are determined by the current and the element number of N, P, the semiconductor thermoelectric refrigerator 7 is composed of many pairs of thermopiles, and has good refrigerating effect.

The material that heat preservation 5 in the casing 1 adopted is graphite alkene phase change material, and graphite alkene phase change material's advantage can also play the heat absorption when having fine heat preservation effect for refrigerated effect is accelerated to messenger's storing room 3 rapid cooling. The graphene phase change material can be graphene aerogel, and the graphene aerogel has high elasticity and strong adsorbability and also has an energy storage and heat preservation effect.

The shell body 1 is internally provided with the inner heat insulation layer 6, one side of the inner heat insulation layer 6 is in contact with the heat insulation layer 5, the inner heat insulation layer 6 is made of high silica glass fiber, the high silica glass fiber can keep good strength and elasticity for a long time when the temperature is 1000 ℃, the heat insulation layer is an effective heat barrier for ultra-high temperature heat flow and jet flame, and has good wear resistance and insulation performance, the service life is greatly prolonged, and meanwhile, the heat insulation performance of the storage chamber 3 is greatly prolonged due to the fact that the material is matched with the heat insulation layer 5 in characteristics.

The inner leaf of the upper cover 2 is provided with a heat preservation layer 5 and an inner heat insulation layer 6, so that the integral heat preservation performance is ensured.

As shown in fig. 2-3, the outer walls of the casing 1 and the upper cover 2 are both provided with an outer heat insulation layer 8, the outer heat insulation layer 8 is matched with the inner heat insulation layer 5 and the inner heat insulation layer 6, the overall heat insulation performance of the refrigerator is further ensured, meanwhile, the outer heat insulation layer 8 also has good wear resistance, internal components can be protected from being worn and damaged, the service life of the refrigerator is prolonged, and the overall quality of the refrigerator is improved.

As shown in fig. 2, 2 supporting plates 9 are arranged in the refrigerating chamber 4 for supporting the partition plate 13, and a control cavity is formed between the two supporting plates 9, and the control cavity is used for installing and fixing some objects such as circuit boards or electric wires, so as to intensively protect the circuit boards or the electric wires from being damaged, and meanwhile, the replacement and the maintenance are convenient.

As shown in fig. 1, a temperature meter 11 is arranged on the housing 1, and the temperature meter 11 can reflect the temperature in the storage chamber 3 in real time, so that a user can know and control the temperature in the storage chamber 3 conveniently.

In order to facilitate the discharge of heat generated by the semiconductor thermoelectric refrigerator 7, the side wall of the shell 1 is provided with an air outlet 12, and the air outlet 12 is used for maintaining the normal temperature of the refrigerating chamber 4 and preventing the equipment from being damaged due to overhigh temperature.

As shown in fig. 2, a power line connected to the semiconductor thermoelectric refrigerator 7 is provided in the control chamber, and an inverter 10(AC-DC) for changing a current flow direction is detachably provided on the power line. The inverter 10 is used for normally supplying the voltage of the vehicle-mounted refrigerator to 12 volts, and if the refrigerator is used at home, the voltage must be reduced to 12 volts, and the voltage of the home is reduced to 220 volts, so that the inverter is movably arranged on a power line and used for changing the voltage, the refrigerator can be used at home, and the application range of the refrigerator is wider.

The handle is arranged on the outer side of the shell, the handle is used for carrying the small refrigerator, and the small refrigerator can be carried by hand and moved to a carriage or different electrified spaces.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (8)

1. A portable semiconductor vehicle-mounted small refrigerator is characterized in that: the refrigerator comprises a shell (1), wherein an upper cover (2) used for sealing the shell (1) is movably connected to the shell (1), a storage chamber (3) and a refrigeration chamber (4) are formed in the shell (1), and a heat insulation layer (5) and an inner heat insulation layer (6) are arranged in the storage chamber (3); a semiconductor temperature difference refrigerator (7) is arranged in the refrigerating chamber (4), and the semiconductor temperature difference refrigerator (7) is used for refrigerating the storage chamber (3);

a plurality of supporting plates (9) are arranged in the refrigerating chamber (4), and a control cavity for installing a circuit board is formed between the adjacent supporting plates (9).

2. The portable semiconductor vehicular small refrigerator according to claim 1, characterized in that: the heat preservation layer (5) is made of graphene phase change materials, and the heat preservation layer (5) covers the inside of the storage chamber (3).

3. The portable semiconductor vehicular small refrigerator according to claim 1, characterized in that: an outer heat insulation layer (8) is arranged on the outer wall of the shell (1), and the outer heat insulation layer (8) and the inner heat insulation layer (6) are made of high silica glass fibers.

4. The portable semiconductor vehicular small refrigerator according to claim 1, characterized in that: and a power line connected with the semiconductor temperature difference refrigerator (7) is arranged in the control cavity, and an inverter (10) for changing voltage is detachably arranged on the power line.

5. The portable semiconductor vehicular small refrigerator according to claim 1, characterized in that: the shell (1) is provided with a temperature instrument (11) for measuring the temperature in the storage chamber (3).

6. The portable semiconductor vehicular small refrigerator according to claim 1, characterized in that: and the side wall of the refrigerating chamber (4) is provided with an air outlet (12) for discharging heat in the refrigerating chamber (4).

7. The portable semiconductor vehicular small refrigerator according to claim 1, characterized in that: the semiconductor thermoelectric refrigerator (7) comprises a plurality of substrates (14), a plurality of N-type and P-type semiconductor materials are arranged between the substrates, and the N-type and P-type semiconductor materials are connected through a guide plate.

8. The portable semiconductor vehicular small refrigerator according to claim 1, characterized in that: the side wall of the shell (1) is provided with a handle for carrying the shell (1).

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