The Cold King Refrigeration Unit editor will talk about refrigerated trucks, which are specialized transport vehicles for refrigeration equipped with refrigeration devices and polyurethane insulated compartments. They are commonly used for transporting frozen foods (refrigerated trucks), dairy products (dairy transport trucks), vegetables and fruits (fresh goods transport trucks), vaccines and drugs (vaccine transport trucks), etc.

A refrigerated truck consists of a specialized vehicle chassis, a compartment made of materials such as fiberglass, color steel plates, aluminum alloys, stainless steel, etc., a thermal insulation layer, a refrigeration unit, and a temperature recorder. For vehicles with other requirements such as meat hook trucks, supporting equipment such as meat hooks, aluminum alloy guide rails, and ventilation ducts can be installed.

The production technology of refrigerated truck body, currently most of the larger refrigerated truck production enterprises in China adopt the "sandwich" panel bonding technology of segmented assembly, and the inner and outer skins are made of composite materials such as fiberglass plate, color steel plate, aluminum alloy, etc.

The material of the inner panel should be different depending on the transported goods, and the expensive inner panel should be made of stainless steel. The middle layer is made of insulation material, mainly polyurethane foam material. High strength adhesive is used on the four sides to bond the glass sheet and polyurethane foam material together to form a closed plate.

There are also injection foam types with segmented assembly and integral skeleton injection foam types. Different products have different requirements for the trunk. For example, refrigerated trucks transporting fresh meat require customized hooks on the cargo compartment.

Due to the small batch size and variety of goods, refrigerated trucks with multiple temperature layers are required for store delivery; For goods with varying temperature requirements and frequent loading and unloading, it is necessary to open multiple refrigerated trucks.

The power source of refrigeration units can be divided into two types: independent and non independent units. Independent units have separate power sources, the difference being that they rely entirely on another unit to generate electricity and maintain operation; Non independent units are driven solely by the working power of the vehicle's engine to drive the cooling work of the unit.

The refrigeration unit of a refrigerated truck is usually installed at the top of the front of the container, with an air conditioning like appearance, but with stronger cooling capacity than air conditioners of the same volume. Most car models use external refrigeration units, while a few micro refrigerated trucks use internal refrigeration units.

For refrigerated trucks with lower temperature requirements, a cold plate can be installed inside the compartment. Generally, different power refrigeration units are selected based on the volume of the refrigerated compartment and the temperature requirements of the transported goods.