English 
Refrigeration appliances are devices that lower the temperature inside or in specific Spaces through artificial refrigeration to achieve functions such as refrigeration, freezing, and temperature control. They are widely used in various scenarios including households, businesses, and industries. According to the differences in usage scenarios and functions, they can mainly be classified into three categories: household refrigeration appliances, commercial refrigeration appliances, and industrial refrigeration appliances. The specific classification and characteristics are as follows:
I. Household Refrigeration Appliances (For Daily Household Use)
Household refrigeration appliances are characterized by miniaturization, convenience and low energy consumption. They mainly meet the needs of food refrigeration, freezing and beverage cooling, and are common equipment in family life.
| Category | Typical product | Core function | Core function |
| Basic refrigeration/freezing | Household refrigerator | It is divided into a refrigeration area (2-8℃, for preserving fruits, vegetables and leftovers) and a freezing area (below -18℃, for freezing meat and quick-frozen food), with some areas featuring variable temperature zones (0-4℃, for soft freezing). | The kitchen and living room store daily ingredients |
| Portable cooling | Mini refrigerator | It has a small capacity (5-50L), can be used for cooling (at a minimum temperature of around 5℃) or heating, and is mostly semiconductor cooling (noiseless). | Bedroom (for storing beverages), car (with a car refrigerator), dormitory |
| Special function | Mini refrigerator | Precise temperature control (12-15℃ for red wine and 5-20℃ for white wine), with some featuring humidity control and light-proof design to prevent the wine from deteriorating | The living room and study store red wine, white wine, etc |
| Special function | Ice maker (Household model) | Quick ice-making (15-30 minutes per batch), small capacity (10-30kg per day), with built-in ice storage box | The kitchen and bar counter meet the need for adding ice to beverages |
Ii. Commercial Refrigeration Appliances (for Commercial Business Scenarios)
Commercial refrigeration equipment is characterized by large capacity, high stability and display. It mainly serves commercial fields such as retail, catering and medical care, and combines the functions of "storage" and "display".
1. Retail display category (for product display + refrigeration)
Commercial refrigerators/freezers: Commonly found in supermarkets and convenience stores, they are divided into open types (such as beverage refrigerators, convenient for customers to take out) and vertical/horizontal closed types (such as frozen food cabinets, for storing ice cream and frozen dumplings). The capacity can reach 100-1000L, with precise temperature control (refrigeration 2-8℃, freezing below -18 ℃).
Cooked food cabinet/fresh meat cabinet: Used in supermarkets and halal food stores, it features moisture retention and anti-fog functions. The refrigeration temperature is 0-5℃ to prevent cooked food and fresh meat from spoiling. Meanwhile, the transparent glass door makes it convenient to display goods.
Cake cabinet: Specially designed for bakeries, with a temperature range of 2-10℃ and humidity control (60%-80%) to prevent cakes and desserts from cracking. The exterior is mostly made of curved glass to enhance the display effect.
2. Catering kitchen category (for food storage and processing)
Kitchen freezer (horizontal/vertical) : Large capacity (200-1000L), horizontal type is suitable for storing large pieces of meat and frozen products (convenient for moving with door opening), vertical type is suitable for classified storage of seasonings and semi-finished products (layered design for easy access), some with explosion-proof and anti-corrosion functions (suitable for oily kitchen environment).
Workbench freezer: The top is a stainless steel operation counter (suitable for cutting vegetables and placing kitchenware), and the bottom is a refrigeration/freezing cabinet (for storing food ingredients), which saves kitchen space and is commonly found in the back kitchens of restaurants and fast food restaurants.
Ice maker (commercial model) : With a daily ice-making capacity of 50-500kg, it can produce square ice, cylindrical ice, snowflake ice, etc. It is suitable for milk tea shops, coffee shops, and hot pot restaurants, meeting the needs of adding ice to a large number of beverages or cooling down food ingredients.
3. Special Commercial Categories (Tailored to specific industry demands)
Medical refrigerators/freezers: used in pharmacies and hospitals, they feature extremely high temperature control accuracy (2-8℃ for storing medicines and vaccines, and -20 ℃ or below for storing biological samples), equipped with temperature alarm and power-off protection functions, and comply with medical industry standards (such as GSP certification).
Flower refrigeration cabinet: Temperature 5-15℃, humidity 70%-90%, delays the withering of flowers, suitable for flower shops and flower markets. Some are equipped with lighting design to enhance the display effect of flowers.
Iii. Industrial Refrigeration Equipment (for Cooling in Industrial Production)
Industrial refrigeration appliances are characterized by high power, high load and customization. They are mainly used for equipment cooling, material cooling and process temperature control in industrial production, and are involved in fields such as chemical engineering, electronics, machinery and food processing.
| Category | Typical product | Core function | Applicable scenarios |
| Circulating cooling | Industrial chiller | Heat is carried away through water circulation and low-temperature cold water (5-30℃) is output to cool down production equipment (such as injection molding machines and laser cutting machines), preventing the equipment from overheating and getting damaged | Plastic processing, electronic manufacturing, mechanical processing |
| Low-temperature freezing | Industrial freezer | It can achieve a low temperature range of -5 ℃ to -120 ℃, and is used for material freezing (such as rapid freezing of meat in food processing) and temperature control in chemical reactions (low-temperature chemical reactions). | Food industry (frozen food), chemical industry (refrigerant production) |
| Space cooling | Industrial cold air blower | It is divided into evaporative type (which absorbs heat and cools down through water evaporation, suitable for high-temperature and dry environments) and compression type (similar to air conditioners, suitable for closed workshops), which are used to cool down large workshops and factories and improve the working environment for workers | Metallurgical workshop, textile factory, warehouse |
| Special process | Freeze dryer (freeze drying machine) | First, the materials are frozen below the freezing point, and then the moisture is sublimated in a vacuum environment to retain the activity of the materials (such as medicines and health products), which is used in the fields of medicine, food, and bioengineering | Pharmaceutical factories (vaccine freeze-dried), health product factories (probiotic freeze-dried) |
Iv. Other special refrigeration appliances
In addition to the above three major categories, there are also niche refrigeration appliances tailored to specific needs:
Laboratory refrigeration equipment: such as low-temperature constant temperature baths (with temperature control accuracy of ±0.1℃, used for temperature control in experimental reactions) and ultra-low temperature refrigerators (-86℃, for storing laboratory samples), are commonly found in research institutions and university laboratories.
Vehicle-mounted refrigeration equipment: such as truck refrigerated containers (used for long-distance transportation of fresh produce and medicines, powered by vehicle-mounted power supply or independent generators, maintaining a refrigeration temperature of 5-8℃), serving the cold chain logistics industry.
In conclusion, the core classification of refrigeration appliances lies in "scene matching" - households focus on "small capacity + convenience", commercial use on "large capacity + display/stability", and industrial use on "high power + customization". Products in different scenarios have significant differences in temperature control range, capacity, material, and functional design.
Refrigeration appliances are devices that lower the temperature inside or in specific Spaces through artificial refrigeration to achieve functions such as refrigeration, freezing, and temperature control. They are widely used in various scenarios including households, businesses, and industries. According to the differences in usage scenarios and functions, they can mainly be classified into three categories: household refrigeration appliances, commercial refrigeration appliances, and industrial refrigeration appliances. The specific classification and characteristics are as follows:
I. Household Refrigeration Appliances (For Daily Household Use)
Household refrigeration appliances are characterized by miniaturization, convenience and low energy consumption. They mainly meet the needs of food refrigeration, freezing and beverage cooling, and are common equipment in family life.
| Category | Typical product | Core function | Core function |
| Basic refrigeration/freezing | Household refrigerator | It is divided into a refrigeration area (2-8℃, for preserving fruits, vegetables and leftovers) and a freezing area (below -18℃, for freezing meat and quick-frozen food), with some areas featuring variable temperature zones (0-4℃, for soft freezing). | The kitchen and living room store daily ingredients |
| Portable cooling | Mini refrigerator | It has a small capacity (5-50L), can be used for cooling (at a minimum temperature of around 5℃) or heating, and is mostly semiconductor cooling (noiseless). | Bedroom (for storing beverages), car (with a car refrigerator), dormitory |
| Special function | Mini refrigerator | Precise temperature control (12-15℃ for red wine and 5-20℃ for white wine), with some featuring humidity control and light-proof design to prevent the wine from deteriorating | The living room and study store red wine, white wine, etc |
| Special function | Ice maker (Household model) | Quick ice-making (15-30 minutes per batch), small capacity (10-30kg per day), with built-in ice storage box | The kitchen and bar counter meet the need for adding ice to beverages |
Ii. Commercial Refrigeration Appliances (for Commercial Business Scenarios)
Commercial refrigeration equipment is characterized by large capacity, high stability and display. It mainly serves commercial fields such as retail, catering and medical care, and combines the functions of "storage" and "display".
1. Retail display category (for product display + refrigeration)
Commercial refrigerators/freezers: Commonly found in supermarkets and convenience stores, they are divided into open types (such as beverage refrigerators, convenient for customers to take out) and vertical/horizontal closed types (such as frozen food cabinets, for storing ice cream and frozen dumplings). The capacity can reach 100-1000L, with precise temperature control (refrigeration 2-8℃, freezing below -18 ℃).
Cooked food cabinet/fresh meat cabinet: Used in supermarkets and halal food stores, it features moisture retention and anti-fog functions. The refrigeration temperature is 0-5℃ to prevent cooked food and fresh meat from spoiling. Meanwhile, the transparent glass door makes it convenient to display goods.
Cake cabinet: Specially designed for bakeries, with a temperature range of 2-10℃ and humidity control (60%-80%) to prevent cakes and desserts from cracking. The exterior is mostly made of curved glass to enhance the display effect.
2. Catering kitchen category (for food storage and processing)
Kitchen freezer (horizontal/vertical) : Large capacity (200-1000L), horizontal type is suitable for storing large pieces of meat and frozen products (convenient for moving with door opening), vertical type is suitable for classified storage of seasonings and semi-finished products (layered design for easy access), some with explosion-proof and anti-corrosion functions (suitable for oily kitchen environment).
Workbench freezer: The top is a stainless steel operation counter (suitable for cutting vegetables and placing kitchenware), and the bottom is a refrigeration/freezing cabinet (for storing food ingredients), which saves kitchen space and is commonly found in the back kitchens of restaurants and fast food restaurants.
Ice maker (commercial model) : With a daily ice-making capacity of 50-500kg, it can produce square ice, cylindrical ice, snowflake ice, etc. It is suitable for milk tea shops, coffee shops, and hot pot restaurants, meeting the needs of adding ice to a large number of beverages or cooling down food ingredients.
3. Special Commercial Categories (Tailored to specific industry demands)
Medical refrigerators/freezers: used in pharmacies and hospitals, they feature extremely high temperature control accuracy (2-8℃ for storing medicines and vaccines, and -20 ℃ or below for storing biological samples), equipped with temperature alarm and power-off protection functions, and comply with medical industry standards (such as GSP certification).
Flower refrigeration cabinet: Temperature 5-15℃, humidity 70%-90%, delays the withering of flowers, suitable for flower shops and flower markets. Some are equipped with lighting design to enhance the display effect of flowers.
Iii. Industrial Refrigeration Equipment (for Cooling in Industrial Production)
Industrial refrigeration appliances are characterized by high power, high load and customization. They are mainly used for equipment cooling, material cooling and process temperature control in industrial production, and are involved in fields such as chemical engineering, electronics, machinery and food processing.
| Category | Typical product | Core function | Applicable scenarios |
| Circulating cooling | Industrial chiller | Heat is carried away through water circulation and low-temperature cold water (5-30℃) is output to cool down production equipment (such as injection molding machines and laser cutting machines), preventing the equipment from overheating and getting damaged | Plastic processing, electronic manufacturing, mechanical processing |
| Low-temperature freezing | Industrial freezer | It can achieve a low temperature range of -5 ℃ to -120 ℃, and is used for material freezing (such as rapid freezing of meat in food processing) and temperature control in chemical reactions (low-temperature chemical reactions). | Food industry (frozen food), chemical industry (refrigerant production) |
| Space cooling | Industrial cold air blower | It is divided into evaporative type (which absorbs heat and cools down through water evaporation, suitable for high-temperature and dry environments) and compression type (similar to air conditioners, suitable for closed workshops), which are used to cool down large workshops and factories and improve the working environment for workers | Metallurgical workshop, textile factory, warehouse |
| Special process | Freeze dryer (freeze drying machine) | First, the materials are frozen below the freezing point, and then the moisture is sublimated in a vacuum environment to retain the activity of the materials (such as medicines and health products), which is used in the fields of medicine, food, and bioengineering | Pharmaceutical factories (vaccine freeze-dried), health product factories (probiotic freeze-dried) |
Iv. Other special refrigeration appliances
In addition to the above three major categories, there are also niche refrigeration appliances tailored to specific needs:
Laboratory refrigeration equipment: such as low-temperature constant temperature baths (with temperature control accuracy of ±0.1℃, used for temperature control in experimental reactions) and ultra-low temperature refrigerators (-86℃, for storing laboratory samples), are commonly found in research institutions and university laboratories.
Vehicle-mounted refrigeration equipment: such as truck refrigerated containers (used for long-distance transportation of fresh produce and medicines, powered by vehicle-mounted power supply or independent generators, maintaining a refrigeration temperature of 5-8℃), serving the cold chain logistics industry.
In conclusion, the core classification of refrigeration appliances lies in "scene matching" - households focus on "small capacity + convenience", commercial use on "large capacity + display/stability", and industrial use on "high power + customization". Products in different scenarios have significant differences in temperature control range, capacity, material, and functional design.
