Heat accumulator sealing structure, heat accumulator and outdoor unit

Abstract

The invention provides a heat accumulator sealing structure, a heat accumulator and an outdoor unit. The heat accumulator sealing structure comprises a shell and a cover plate, wherein the shell comprises a bottom plate, a front side plate, a rear side plate and a middle side plate; the front side plate, the rear side plate and the middle side plate are arranged on the bottom plate; the front sideplate, the rear side plate and the middle side plate define a containing cavity used for containing a heat exchange assembly; first bending parts are arranged on the side faces, facing the middle side plate, of the front side plate and the rear side plate along the edges of the front side plate and the rear side plate in a surrounding mode; the bottom plate and the middle side plate are arrangedon the inner sides of the first bending parts; and second bending parts are arranged on the two side edges, corresponding to the middle side plate, of the cover plate, the top of the middle side plateis contained on the inner sides of the second bending parts, and the two side edges, corresponding to the front side plate and the rear side plate, of the cover plate are contained on the inner sidesof the first bending parts. According to the heat accumulator sealing structure, the overall sealing performance and reliability of the heat accumulator are improved, and the technical problem that heat storage materials in the heat accumulator overflow when phase change occurs is solved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, and more specifically, to a heat accumulator sealing structure, a heat accumulator and an outdoor unit. Background technique [0002] When the air source heat pump is in heating operation, the outdoor heat exchanger will frost, which will block the air passage, increase the thermal resistance of the outdoor heat exchanger, and affect the heating performance of the system. As the layer thickness increases, the heating performance will further deteriorate, so the system needs periodic defrosting to maintain normal heating operation. [0003] The traditional reverse cycle defrosting is to switch the air conditioner to the cooling mode and absorb heat from the room to defrost, which will cause a 2-7°C temperature drop in the room, seriously affecting the comfort of the room, and when switching between heating and defrosting modes , the system pressure fluctuates violently, and the mechanica...

AI Technical Summary

Problems solved by technology

However, the existing regenerators are generally sealed with gaskets and sealing rings with interference fit, and are fixed with auxiliary aids such as screws, bolts, and injection clamps, which cannot guarantee 100% sealing of the regenerator, and there are still heat storage materials. overflow problem

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