Air duct assembly and cold and warm air supply device

Abstract

The invention discloses an air duct assembly which comprises a shell. An air duct is arranged in the shell, an air inlet and an air outlet are formed in the air duct, a guide structure is arranged on the shell, a heating body is arranged on the guide structure, and the heating body moves on the guide structure, so that the heating body can open or close the air outlet. The invention further discloses a cold and warm air supply device. According to the air duct assembly provided by the invention, the moving position of the heating body in the guide structure is arranged, so that the air duct assembly can blow out warm air or cold air; and in order to prevent the heating body from influencing air guide of a volute tongue in the air duct, matching and movement of a support of the heating body and the volute tongue face are designed, so that the support can always cover the air outlet during use, and a warm air mode is realized. The support of the heating body is always parallel to a volute and a volute tongue outflow angle when returning to the side edge of the air duct, and the side face of the support and the volute tongue outflow face are kept coplanar, so that the air outlet is not affected, air is guided, the air outlet direction and the air speed are guaranteed, and a cold air mode is achieved.

Description

technical field [0001] The invention belongs to the technical field of small household appliances, and in particular relates to an air duct assembly and a cooling and heating air supply device. Background technique [0002] Cooling fans on the existing market generally only have a single function suitable for blowing air in summer, and can only be idle in winter, and heaters are needed to meet the heating demand in winter. Exist in taking indoor space like this, need cold, warm two kinds of products etc. problem. [0003] Cooling, heating and cooling fans are derived from existing products. The structural space of existing cooling fans is generally designed to be very compact. If the heating function is added, the movement space of the heating element that realizes heating will be limited. [0004] Therefore, there is an urgent need to design an air duct assembly and a heating and cooling air supply device to solve the above-mentioned problem of limited movement space of th...

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Problems solved by technology

[0003]Heating and cooling fans are derived from existing products. The structural space of existing cooling fans is generally designed to be very compact. If heating function is added, it will lead to the realization of cooling The movement space of the warm heating body is limited

[0004]Therefore, there is an urgent need to design an air duct assembly and a heating and cooling air supply device to solve the problem of limited movement space of the heating element in the heating mode of the heating and heating air supply device mentioned above question

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