Car refrigerator refers to the refrigerator that can be carried on the carRefrigerated cabinet。Car refrigerator is a new generation of refrigeration and cold storage appliance popular in the international market in recent years.
There are mainly two kinds of car refrigerators in the market. One is the semiconductor car refrigerator, which is cooled by electronic chips;The other isCompressor car refrigeratorThe compressor is the traditional technology of the traditional refrigerator, with a low refrigeration temperature of - 18 ℃ and 10 ℃.High refrigeration efficiency, ice making, fresh-keeping and large volume
The car refrigerator is a continuation of the household refrigerator, which can use semiconductor electronic refrigeration technology or compressor refrigeration.Generally, the noise is small and the pollution is little.When driving, just insert the power plug into the cigarette lighter to cool the refrigerator.
There are two main types of vehicle mounted refrigerators in the market. One is the semiconductor vehicle mounted refrigerator. Its principle is to use electronic chips to cool. The P-N junction made of special semiconductor materials is used to form a thermocouple pair, which produces the Peltier effect. That is, a new refrigeration method using DC power to cool. The refrigeration temperature range is 5 to 65 degrees.The advantages of this refrigerator are that it can both cool and heat, environmental protection, no pollution, small size, low cost, no vibration and noise during operation, and long service life.The disadvantage is that the refrigeration efficiency is not high, the refrigeration temperature is affected by the ambient temperature, the refrigeration cannot reach below zero, and the capacity is small.The other isCompressor car refrigeratorThe compressor is the traditional technology of the traditional refrigerator, with a low refrigeration temperature of - 18 ℃ and 10 ℃.High refrigeration efficiency, ice making, fresh-keeping, and large volume are the mainstream of the future development of vehicle mounted refrigerators.However, this kind of refrigerator is heavy, inconvenient to carry and expensive.Compressor The compressor of automobile refrigerator is mainly produced in Germany and Japan in the world.
type
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The first type is a relatively early product. It may not be suitable to call it a refrigerator, because it has no refrigeration function but only insulation function. When using it, you must put the items to be refrigerated in the refrigerator and then put them in the incubator. If there are ice bags, put them in the ice bag, so that they can keep frozen for a short time. The advantage of this kind of refrigerator is that it does not consume electricity,You should know that the electricity on the car is obtained from oil, and the price is relatively low. The disadvantage is that it cannot be kept warm for a long time, and the space is small.
The second type is the semiconductor car refrigerator. The refrigeration temperature range is - 5 to 65 degrees.The advantage of this method is that it can both cool and heat, and its capacity is small.
The semiconductor refrigerator has two functions of refrigeration and heating: in terms of refrigeration, it is generally 10~15 ℃ lower than the ambient temperature, but its heating temperature can be as high as 65 ℃;In addition, because no compressor is used, semiconductor refrigerators also have the advantages of energy conservation, environmental protection, noise free, and portability. The market price is between 200 yuan and 1000 yuan per share.The advantage of this semiconductor electronic refrigeration car refrigerator is that it is relatively cheap and easy to use. This kind of product is represented by the Kuba refrigerator.
Semiconductor electronic refrigeration, also known as thermoelectric refrigeration, or thermoelectric refrigeration, is a refrigeration method that uses the "Peltier effect", and is called the world's three major refrigeration methods together with compression refrigeration and absorption refrigeration.
The third category is the compressor car refrigerator, which is large in size and will be the mainstream of the future car refrigerator development.The disadvantage is that the weight is heavy and the power consumption is high. The domestic high-end compressor, the compressor of automobile refrigerator is mainly German, and the quality is good.
The compressor refrigerator only has the refrigeration function, its refrigeration capacity can reach - 18 ℃, it can control the temperature in sections, is not easy to damage, and can conduct stable and effective refrigeration. On many high-end cars and standard cars, the compressor refrigerator is used, and the market price is more than 10 times of the semiconductor ice box with the same volume.Features: 1. It is applicable to power supply of various voltages, whether 12VDC or 24VDC. The power supply device in the compressor car refrigerator can automatically identify different voltages and make corresponding adjustments.2. Medium sized compressor car refrigerator has the characteristics of convenient handling and excellent design of internal and external dimensions.3. Compressor car refrigerator is most suitable for off-road vehicles, motorhomes, trucks, buses, yachts and boats.If necessary, they can be safely fixed in the vehicle.4. The advanced special compressor for vehicle refrigerator provides our freezer with super cooling power, while its energy-saving characteristics and mute function also enable our customers to enjoy the supreme enjoyment.
The compressor car refrigerator is composed of compressor, condenser, drying filter, capillary, evaporator and other components.
The rechargeable type can use both household 220V AC power and vehicle mounted 12V DC power in terms of energy supply. It can also continue refrigeration work through its own power storage function when there is no power supply. This solves the problem that the vehicle mounted refrigerator cannot be used without power failure.
Semiconducting body
The semiconductor refrigerator has two functions of refrigeration and heating: in terms of refrigeration, it is generally 10~15 ℃ lower than the ambient temperature, but its heating temperature can be as high as 65 ℃;In addition, because no compressor is used, semiconductor refrigerators also have the advantages of energy conservation, environmental protection, noise free, and portability. The market price is between 200 yuan and 1000 yuan per share.suchsemiconductorThe advantage of the electronic refrigeration car refrigerator is that it is relatively cheap, easy to use but easy to damage, and does not cool.
Semiconductor electronic refrigeration, also known as thermoelectric refrigeration, or thermoelectric refrigeration, is a kind of refrigeration method that uses the "Peltier effect". Together with compression refrigeration and absorption refrigeration, it is called the world's three major refrigeration methods.
In 1843,FrancePhysicist Peltier connected a bismuth wire at each end of the copper wire, and then connected two bismuth wires to the positive and negative poles of the DC power supply. After power on, he was surprised to find that one connector became hot and the other became cold;This phenomenon was later called the "Partier effect".
Schematic diagram of car refrigerator space
The physical principle of the "Peltier effect" is that the charge carrier moves in the conductor to form a current. Since the charge carrier is at different energy levels in different materials, when it moves from the high energy level to the low energy level, it will release excess heat.On the contrary, it is necessary to absorb heat from the outside (that is, refrigeration).
The simple structure of the electronic refrigerator is: connect the P-type semiconductor, N-type semiconductor, copper plate and copper wire into a circuit. The copper plate and wire only conduct electricity. The circuit is powered by 12V DC. After the current is connected, one contact becomes cold (inside the refrigerator), and the other connector dissipates heat (radiator behind the refrigerator).
1. Simple structure, few parts and convenient maintenance;2. No mechanical transmission parts, no wear, no noise, long service life;
3. No needcryogenRefrigeration (both compression and absorption), absolutely environmentally friendly;
4. The refrigeration efficiency is low, and the refrigeration temperature is greatly affected by the ambient temperature.
It is suitable for both vehicle and household use.It is suitable for the fresh storage and heat preservation of drinks, food, fruit, milk, red wine and low-temperature drugs. It is the best partner for people who live in homes, hotels, offices, bars, student apartments, and drive (trucks, taxis, buses, tourist buses), travel, picnic, camping, fishing.
Compressor type
The compressor refrigerator only has the refrigeration function, its refrigeration capacity can reach - 18 ℃, it can control the temperature in sections, is not easy to damage, and can conduct stable and effective refrigeration. On many high-end cars and standard cars, the compressor refrigerator is used, and the market price is more than 10 times of the semiconductor ice box with the same volume.
The advantages of compressor refrigeration vehicle refrigerator arerefrigerationThe temperature is low, the speed is fast, and the temperature can be adjusted at any time. The disadvantage is that the price is high, the refrigeration cannot continue without the on-board power supply, and the size is large, which is inconvenient to carry.
1. It can be applied to power supply of various voltages. Whether it is 12VDC or 24VDC, the power supply device in the compressor car refrigerator can automatically identify different voltages and adjust accordingly.
2. Medium sized compressor car refrigerator has the characteristics of convenient handling and excellent design of internal and external dimensions.
3. Compressor car refrigerator is most suitable forOff-road vehicle、Touring car、truck, buses andyachtAnd small boats.If necessary, they can be safely fixed in the vehicle.
4. The advanced special compressor for car refrigerator provides our freezer with super cooling power, while its energy-saving characteristics and mute function also enable our customers to gain supremacy from it
Operation method
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1. The car refrigerator can make people feel a little cool in the hot summer, but it must be clear about its minimum cooling temperature. Another thing to know is that the semiconductor car refrigerator has no obvious cooling effect, and the cooling speed is slow. It is better to move in things that have been refrigerated or frozen in a household refrigerator.
2. When purchasing a car refrigerator, it is better to choose a product with low-voltage protection function.
3. It is better to equip a power converter so that the refrigerator can be used both at home and in the car.
4. When using the car refrigerator, try not to let water enter the air inlet, otherwise the car refrigerator will strike.
5. No magnetic objects can be placed in the refrigerator liner to prevent the internal refrigeration chip from being affected.
6. Overheated and corrosive objects shall not be placed in the tank to avoid damage to the tank.
7. When switching from one temperature mode to another temperature mode, the semiconductor car refrigerator should first cut off the power for 8-10 minutes.
8. When the vehicle refrigerator without low-voltage packaging device is used on the vehicle, remember to cut off the power supply of the product after turning off the engine.
9. All refrigerators have air outlets for heat dissipation, so be careful not to block the air outlets when placing them.
difference
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Difference between car refrigerator and household refrigerator
1. Anti seismic and anti shaking: the car refrigerator has good seismic performance and is suitable for use on bumpy roads;
2. Battery protection: the on-board refrigerator will automatically power off after reaching the battery protection setting value to protect the normal start of the car;
Schematic diagram of power consumption of on-board refrigerator
3、E-mark(electromagnetic interference ）: The electronic control module of the car refrigerator does not interfere with the electromagnetism of other electronic products in the car when it works, nor will it affect the normal use of the car battery;
4. Anti overturning protection: when the car refrigerator is used, a slight tilt will not affect the normal operation. When the tilt reaches more than 45 °, it will automatically stop working, thus protecting the compressor;
Reasons for difference:
1. The car vibrates constantly during the driving process, and good anti vibration performance can ensure the normal use of the car refrigerator;
2. The car refrigerator is connected to the cigarette lighter on the car for use. When the car is turned off, the battery will continue to supply power to the refrigerator. At this time, the battery protection can ensure that sufficient power is retained in the battery to ensure the normal ignition of the car, so as to protect the safe use of the battery;
3. There are many kinds of electronic products in the car. All kinds of electromagnetic interference affect the normal work. E-Mark can ensure that the electromagnetic interference of the car refrigerator does not interfere with the normal work of other electrical appliances, and protect the safe use of various electronic devices in the car;
4. When the inclination angle of the compressor is too large, continuous operation will cause damage to the compressor and affect its service life. The anti falling protection can ensure that the compressor will automatically stop when the inclination exceeds 45 °, thus protecting the service life of the compressor;
2. When switching from heating function to cooling function, it is recommended to turn off the power supply and start the car refrigerator after 5 minutes.
3. Please ensure the ventilation and cooling holes of the car refrigerator are unblocked at any time.
4. Do not put objects into the cooling holes and suction holes of the car refrigerator, and keep away from heat sources when using the car refrigerator.
5. When cleaning the car refrigerator, please turn off all power supplies and do not use strong detergent to clean the refrigerator.
Usage time
1. Ambient temperature of refrigerator: the higher the ambient temperature, the shorter the battery life;
2. Type and quantity of items stored in the refrigerator: the more items, the more power the refrigerator needs to consume to maintain the set temperature;
3. Door opening and closing times: frequent door opening and closing results in increased power consumption of the refrigerator;
4. Capacity and power state of automobile battery: the larger the battery capacity, the longer the service life;The more sufficient the power, the longer the service life;
5. Setting temperature of refrigerator: the lower the setting temperature, the greater the power consumption;
6. Setting level of refrigerator battery protection: the higher the battery protection level, the shorter the service time;
Development prospect
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Many high-end cars in the world have adopted OEM method to embed matching car refrigerators, which is a real car refrigeratorEurope, Japanthe republic of koreaMany professional enthusiasts and national defense forces have begun to useHermetically sealed compressorThe refrigeration temperature of the car refrigerator can reach - 18 degrees below zero and can be controlled in sections. Most refrigerators can use 220 V/110 V - 12 V/24 V voltage and automatically switch.The use of this compressor refrigerator is traditionalReciprocating compressorAnd rotary compressors.Even if the refrigerator is turned over arbitrarily, the compressor will not be damaged.The compressor adopts the fully enclosed, fluorine free, maintenance free technology, so that the car refrigerator can operate normally in reverseCross-country raceUse this refrigerator.
