Strong heat air conditioner and defrosting method thereof

Abstract

The heat-flash air conditioning and its method of defrosting and it is in characterized in that: in the indoor machine sets up a big power secondary electric hot device and the big power secondary electric hot device's electric heat power is 0.9 to 1.4 times to the system's standard cooling quantity. When it is defrosting keep the indoor cross flow flan running in low speed and at the same time open the big power secondary electric hot device with the circulate system in the work condition of cooling. The invention can make the heating quantity of system reached two times or more to the cooling quantity so it is satisfied the small cooling quantity and big heating quantity of the setting requirement of system especially it is suited to the southwest area with the lower temperature and the bigger moisture. During the process of defrosting the fluctuation of environment's temperature is small and the time of defrosting is shorter and the defrosting is more clearly and thoroughly.

Description

technical field [0001] The present invention relates to a household air conditioner and a defrosting control method thereof. Background technique [0002] There are two problems in the actual use of household air conditioners: [0003] 1. In different regions, the temperature and humidity vary greatly, and the climate characteristics are also different. For example, the temperature in the southwest and other regions is not too high in summer, while the temperature in winter is lower and the humidity is higher. Local 28m 2 The room needs a 2HP air conditioner when used in summer, and a small 5HP air conditioner when used in winter, that is, more than 4HP, close to 5HP. But the current conventional 2HP fixed-frequency air conditioner, its system heat pump heating capacity is only about 1.1 times the cooling capacity. Obviously, if the 2HP air conditioner is used to meet the local summer use, it cannot be used in winter; on the contrary, if the 5H...

AI Technical Summary

Problems solved by technology

Since the defrosting effect directly affects the heating effect, it is necessary to prolong the defrosting operation time and increase the frequency of defrosting operation, but this will inevitably affect the heating effect due to insufficient heating time. heat effect

The national standard stipulates: "The defrosting time shall not exceed 20% of the running time", but for areas with high humidity, it will cause a vicious circle due to incomplete defrosting, and the heating effect will be worse every time.

Obviously, there are irreconcilable contradictions between the two. At the same time, due to the discontinuity of heating, the ambient temperature fluctuates in a large range, which brings discomfort to users.

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