摘要：
Double-walled crockery comprising a first wall (610) to be heated or cooled, and a second wall (620), wherein between the first wall and the second wall is located a space (630) in which a pouch (640) filled with a phase-change material is accommodated, wherein the pouch is arranged against the first wall of the crockery and wherein a thermally insulating layer is present between the pouch and the second wall of the crockery.
技术功效语段：
The patent describes a way to improve the heat exchange in crockery by using a pouch containing a phase-change material. This pouch is placed against the first wall of the crockery, while a thermally insulating layer is present between the pouch and the second wall. This makes it efficient and targeted heat exchange between the phase-change material and the first wall, while the second wall only heats up to a limited extent. In a preferred embodiment, the pouch contains two films, which can allow for the phase-change material to move freely in the crockery. The films can be made of different materials, such as plastic or metal, and can be laminated to combine different properties. Overall, this method allows for better heat exchange in crockery and ensures that the pouch is impermeable to molecules.
权利要求：
Claims
1. Double-walled crockery comprising a first wall to be heated or cooled, and a second wall, wherein between the first wall ami the second wail is located a space in which a pouch filled with a phase-change material is accommodated, wherein the pouch is arranged against the first wall of the crockery and wherein a thermally insulating layer is present between the pouch and the second wait of the crockery.
2. Crockery as claimed in claim 1 , wherein the pooch is filled with phase-change material not accommodated in capsules.
3. Crockery as claimed in claim i or 2, wherein the pouch is glued against the first wail of the crockery. 4. Crockery as claimed in any of the foregoing claims, wherein the thermally insulating layer is an air layer.
5. Crockery as claimed in any of the foregoing claims, wherein the first and second walls are manufactured from ceramic material.
6. Crockery as claimed in any of the foregoing claims, wherein the crockery comprises at least a first part of ceramic material and a second part of ceramic material, wherein the first part comprises the first wall and the second part comprises the second wall, and wherein the first part is attached against the second part such that they bound a closed space in which the pouch is acccommodated.
7. Crockery as claimed in the foregoing claim, wherein the first part and the second part arc any of the following: an upper part of a plate and a lower part of a plate; an inner part of a cup and an outer part of a cup; an upper part of a spoon and a lower part of a spoon.
8. Crockery as claimed in any of the foregoing claims, wherein the thermal ly insulating layer comprises an elastic pressing materia! configured to press the pouch against the first wall of the crockery. 9. Crockery as claimed in the foregoing claim, wherein the elastic pressing material has a heat conduction coefficient of less than 0.9 W/(m.K), and preferably of less than 0.5 WV(m.K).
10, Crockery as claimed in claim 8 or 9, wherein the elastic pressing material is a foam.
11 , Crockery as claimed in any of the foregoing claims, wherein a high vacuum prevails in the tilled pouch.
12. Crockery as claimed in any of the foregoing claims, wherein the pouch is arranged against the first wall of the crockery such that a layer of the phase-change materia) has a thickness, in a direction transversely of the first wall of the crockery, of between 2 mm and 10 mm.
13. Crockery as claimed in any of the foregoing claims, wherein the pouch filled with phase-change material releases per square centimetre of surface area a heat energy of between 50 joule and 200 joule. 14. Crockery as chimed in any of the foregoing claims, wherein the first wall of the crockery is substantially flat, and wherein the pouch is arranged against a central part of the first wall such that a border part of the first wall is left clear. i 5. Crockery as claimed in any of the foregoing claims, wherein the First wail is bowl. shaped and wherein the pouch comprises a part formed in bowl shape which is configured to be arranged against the first bowl-shaped wall.
16. Crockery as claimed in any of the foregoing claims, wherein the first wail is a wall to be heated and wherein the phase-change material has a melting temperature of between 40°C and 65°C, preferably between 50°C and 60°C.
17. Crockery as claimed in any of the churns 1 to 15, wherein the first wall is a wall to be heated and wherein the phase-change material has a melting temperature of between 65°C and 95°C, preferably of between 70°C and 80°C.
18. Crockery as claimed in any of the claims 1 to 15, wherein the first wall is a wall to be cooled and wherein the phase-change material has a melting temperature of between 0°C and
14°C, preferably between 4°C and 8°C. 19. Crockery as churned in any of the foregoing claims, wherein the pouch comprises a first and a second film, wherein the phase-change material is situated between the first and second
films.
20. Crockery as claimed in the foregoing claim, wherein the first film and second film of the pouch arc at {cast 40 μm thick, and preferably between 50 μm and 150 μm thick,
21. Crockery as claimed in claim 19 or 20, wherein the first film and second film of the pouch comprise a welding layer and a barrier layer, wherein the welding layer of the first film is welded to the welding layer of the second Htm. 22. Crockery as claimed in claim 21, wherein the welding layer comprises polypropylene and the barrier layer comprises polyamidc.
23. Crockery as claimed in any of the claims 19-22, wherein the first film and/or the second film comprise a layer manufactured from aluminium.