Insulating container lid capable of quickly lowering temperature and insulating container including same

Abstract

The invention provides an insulating container lid capable of quickly lowering the temperature and an insulating container including the same. The lid comprises an inner cylinder wall, a temperature control layer made from temperature control layer materials and an outer cylinder wall, wherein the temperature control layer materials comprise a phase-change material and / or a heat conduction material. The invention further provides the insulating container including the lid. The lid such as a lid of a drinking insulating cup or an insulating kettle has the advantage of quickly lowering the temperature to the needed temperature and can achieve the effect that poured hot water is immediately drunk. The insulating container can quickly enable the temperature of contents to be lowered to the needed temperature through the lid while the temperature of the contents is kept, is especially suitable for achieving the purpose that people carry hot water in the outdoor travel process and can meet the requirement that the hot water is immediately drunk when being poured out.

Description

technical field [0001] The present invention relates to a thermal insulation container, and more specifically, the present invention relates to a lid for a thermal insulation container capable of rapid cooling and a thermal insulation container including the lid. Background technique [0002] The thermal insulation container is generally a container made of ceramics or stainless steel with a vacuum layer, such as a closed container, such as a closed container for holding water, such as a thermos cup or a thermos pot. Since the vacuum insulation layer can delay the heat dissipation of the liquid contained inside, such as water, this type of heat preservation container has the effect of long-term and high-efficiency heat preservation. [0003] At present, thermal insulation containers with larger capacity, such as thermos cups or thermos jugs, especially thermos cups or thermos jugs for travel, generally have a lid for drinking water. Take off the lid, open the sealing valve, ...

AI Technical Summary

Problems solved by technology

However, metal phase change materials such as metal gallium or gallium-based alloys used therein have strong corrosion and certain toxicity, and are not suitable for use on drinking water utensils such as drinking water caps; Na 2 SO 4 10H 2 O or Na 2 PO 4 12H 2 Inorganic hydrated salts such as O have problems such as crystallization, supercooling, and non-synergistic effects, which lead to poor cycle stability and are not suitable for repeated use; n-capric acid has an unpleasant taste, and requires high sealing when it becomes a liquid phase. Leakage will have a serious impact on the use of drinking water caps such as thermal insulation containers. Even if there is no leakage, it will easily cause bad taste associations; lauric acid is also harmful to health, especially because it has a strong stimulating effect. Gastrointestinal discomfort can cause pollution to water bodies, and it is quite troublesome to manufacture wastewater treatment; although paraffin wax is non-toxic, it has problems such as poor thermal conductivity, slow cooling speed, and difficulty in direct packaging.

In addition, because the phase transition temperature of the phase change material used in the thermos cup lid disclosed in this patent (as described in the examples herein is generally 29 to 35°C) is lower than the outdoor ambient temperature, it loses the function of melting phase transition and endothermic heat, and cannot Applied to the drinking cup cover for rapid cooling when traveling outdoors

In addition, vacuum insulation measures need to provide a completely sealed vacuum chamber. On the one hand, such a vacuum chamber may easily leak gas into it as it is used. The temperature easily leads to irreversible damage to the phase change material (such as the volatilization of the phase change material), resulting in the decline or even loss of the rapid cooling and heat storage performance of the phase change material

[0009] At the same time, the similar phase change materials described in the above-mentioned published patents cannot be directly used in drinking water thermos cups or thermos pot lids. The existing problems mainly include: (1) the phase change materials used have low thermal conductivity; (2) The phase change latent heat of phase change materials is limited; (3) the cycle stability of phase change materials is poor; (4) the thermal expansion rate of phase change materials is large; (5) phase change materials have certain toxicity; (6) phase change materials are expensive; (7) The quick-cooling thermos cup does not adopt heat insulation measures or the heat insulation effect is limited; (8) The long-term heat preservation performance is not good; (9) It is difficult to manufacture

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