A high-efficiency cold air circulation air curtain system for display cabinets

Abstract

The invention discloses a high-efficient cold air circulation air curtain system of a display cabinet. The system comprises a cabinet body and a cold air circulation air curtain circulation device arranged in the cabinet body, wherein the cold air circulation air curtain circulation device is provided with an air duct, an air outlet and an air return port opposite to the air outlet; and when the cold air circulation air curtain circulation device works, the airflow blown to the air return port from the air outlet forms a cold air circulation air curtain. An extrusion plate is arranged outside the air outlet; a baffle plate which is used for enabling the airflow velocity to have a gradient effect from the outer layer to the inner layer is arranged at the connecting part of the air outlet and the air duct; and the baffle plate is arranged in the air duct in a protruding mode. According to the invention, the airflow velocity and the direction of the cold air at the air outlet are changed; through the match of the extrusion plate and the baffle plate, the air curtain velocity has a parabolic shape gradient effect from the outermost layer to the innermost layer; the highest point of the air curtain velocity is formed in the inner layer of air curtain; the refrigeration effect of the cold air is improved; and the whole display cabinet has a purpose of saving energy and reducing consumption.

Description

Technical field: [0001] The invention relates to the technical field of commercial freezing / refrigerating display cabinets, in particular to a high-efficiency cold air circulation air curtain system for a display cabinet. Background technique: [0002] The cold air circulation air curtain system of the refrigerated display cabinets used in traditional supermarkets or convenience stores only uses simple air outlets and return air outlets to form a cold air circulation. For example, the Chinese patent No. is "ZL200620072511.5" and the patent name is "drink display cabinet". The air outlet simply sends cold wind to the glass screen to form a cold air circulation. There is also a Chinese invention patent with the Chinese patent number "ZL00214891.9" and the patent name "Cold Air Circulation Air Curtain Adjustable Display Cabinet". Cool air circulates. [0003] In addition, the Chinese invention patent with the Chinese patent number "201020535491.7" and the patent name "horizon...

AI Technical Summary

Problems solved by technology

[0003] In addition, the Chinese invention patent with the Chinese patent number "201020535491.7" and the patent name "horizontal refrigerated display cabinet with glass sliding door" and the Chinese invention patent with the Chinese patent number "201120268125.0" and the patent name "A The Chinese invention patent of the "horizontal display cabinet", which is provided with a turning part or a windshield at the turning inside the air duct. This design is to change the flow direction of the wind at the turning or corner in the air duct. The wind changes direction at the turning point or corner in the air duct and then blows out uniformly from the air outlet. Although the wind blown out of the air outlet generally flows in the same direction, the air outlet has a greater impact on the wind blown out from the air outlet. The control of speed and direction is very limited, and the air flow blown out from the air outlet to form the cold air circulation air curtain is actually in a turbulent state

This traditional cold air circulation air curtain circulation is likely to cause leakage of cooling capacity in the cabinet and entry of external heat, resulting in uneven temperature distribution in the cabinet or increased energy consumption, so it is necessary to improve it

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