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US 2021/0316673 A1Published application
3d thermoformed element
AssigneeHutchinson
InventorsFabrice Chopard, Cedric Huillet
Life of this patent
Estimating the term…
Abstract
A three-dimensional, vacuum thermal insulating element comprising a compressed three-dimensional porous structure, an envelope closed in an airtight manner comprising a thermoformable barrier wall, enclosing the porous structure, which is interposed between two major surfaces of the barrier wall, and where, at outside ambient temperature and pressure, a pressure between less than 105 Pa and more than 10−2 Pa prevails. The barrier wall is thermoformed at said the two major surfaces, between which the porous structure is bent-shaped and/or has reliefs and/or depressions.
Claims15
An automobile door including:
- an assembly comprising:
- a structural element interposed between an outside environment and an internal volume to be thermally and/or acoustically protected, the structural element forming a panel, made of metal, composite or plastic, which defines a structural frame for the door,
- and an inner lining member for lining the structural element, the inner lining member comprising at least one vacuum, thermal insulating element comprising:
- a compressed porous structure defining a first porous structure comprising a porous material having a first density,
- an envelope closed in an airtight manner:
- comprising a barrier wall which is thermoformable and airtight,
- in which envelope is enclosed the porous structure whose shape is followed by the barrier wall, and
- in which envelope, at outside ambient temperature and outside ambient pressure, a pressure ranging from less than 105 Pa to more than 10−2 Pa prevails, the inner lining member further comprising a second porous structure comprising the same porous material, or a different porous material, having a second density, the second density being lower than the first density, the first and second porous structures being superimposed,
- at an outer side of the structural element, a door panel metal sheet defining an outer body of the door and which is attached to the structural element, and,
- at an inner side of the structural element, an interior trim fixed to the structural element so that the inner lining member including said thermal insulating element is interposed between the door panel metal sheet and the interior trim.
7 more elements
A part of an hybrid vehicle or all-electric vehicle including a body, said part comprising:
- an assembly comprising:
- a structural element interposed between an outside environment and an internal volume to be thermally and/or acoustically protected, the structural element being a part of the vehicle body or a protective tray to be fixed to the vehicle body and/or to a compartment receiving a battery pack for an electric supply of the vehicle, to be disposed into the internal volume,
- and an inner lining member for lining the structural element, the inner lining member comprising at least one vacuum, thermal insulating element comprising:
- a compressed porous structure defining a first porous structure comprising a porous material having a first density,
- an envelope closed in an airtight manner:
- comprising a barrier wall which is thermoformable and airtight,
- in which envelope is enclosed the porous structure whose shape is followed by the barrier wall, and
- in which envelope, at outside ambient temperature and outside ambient pressure, a pressure ranging from less than 105 Pa to more than 10−2 Pa prevails, the inner lining member further comprising a second porous structure comprising the same porous material, or a different porous material, having a second density, the second density being lower than the first density, the first and second porous structures being superimposed, and,
- a cooling plate of said battery pack,
- the inner lining member being interposed between the outside environment and the cooling plate,
- the thermal insulating element being sandwiched between the protective plate, or the vehicle body, and the cooling plate, which comprises channels for circulating a cooling fluid disposed in heat exchange with the battery pack.
8 more elements
A body of a motor vehicle surrounding a passenger compartment of the motor vehicle and including:
- a) an assembly comprising:
- a structural element interposed between an outside environment and an internal volume to be thermally and/or acoustically protected, the structural element comprising a part of the motor vehicle body,
- and an inner lining member for lining the structural element, the inner lining member comprising at least one vacuum, thermal insulating element comprising:
- a compressed porous structure defining a first porous structure comprising a porous material having a first density,
- an envelope closed in an airtight manner:
- comprising a barrier wall which is thermoformable and airtight,
- in which envelope is enclosed the porous structure whose shape is followed by the barrier wall, and
- in which envelope, at outside ambient temperature and outside ambient pressure, a pressure ranging from less than 105 Pa to more than 10−2 Pa prevails, the inner lining member further comprising a second porous structure comprising the same porous material, or a different porous material, having a second density, the second density being lower than the first density, the first and second porous structures being superimposed, and
- b) from the structural element to said at least one thermal insulating element, a layer of air and then another part of the structural element.
6 more elements
An aircraft fuselage surrounding a passenger compartment and including:
- an assembly comprising:
- a structural element interposed between an outside environment and an internal volume to be thermally and/or acoustically protected, the structural element comprising a part of said aircraft fuselage,
- and an inner lining member for lining the structural element, the inner lining member comprising at least one vacuum, thermal insulating element comprising:
- a compressed porous structure defining a first porous structure comprising a porous material having a first density,
- an envelope closed in an airtight manner:
- comprising a barrier wall which is thermoformable and airtight,
- on which envelope is enclosed the porous structure whose shape is followed by the barrier wall, and
- in which envelope, at outside ambient temperature and outside ambient pressure, a pressure ranging from less than 105 Pa to more than 10−2 Pa prevails, the inner lining member further comprising a second porous structure comprising the same porous material, or a different porous material, having a second density, the second density being lower than the first density, the first and second porous structures being superimposed, and
- between the structural element and said at least one thermal insulating element, a layer of air at least 20 mm thick.
6 more elements
An aircraft fuselage surrounding a passenger compartment and including:
- an assembly comprising:
- a structural element interposed between an outside environment and an internal volume to be thermally and/or acoustically protected, the structural element comprising frames and/or rails and/or stringers, which are individually surrounded by at least one said thermal insulating element and by a second porous structure,
- and an inner lining member for lining the structural element, the inner lining member comprising at least one vacuum, thermal insulating element comprising:
- a compressed porous structure defining a first porous structure comprising a porous material having a first density,
- an envelope closed in an airtight manner:
- comprising a barrier wall which is thermoformable and airtight,
- in which envelope is enclosed the porous structure whose shape is followed by the barrier wall, and
- in which envelope, at outside ambient temperature and outside ambient pressure, a pressure ranging from less than 105 Pa to more than 10−2 Pa prevails, the inner lining member further comprising said second porous structure which comprises the same porous material, or a different porous material, having anyway a second density, the second density being lower than the first density, the first and second porous structures being superimposed.
5 more elements
An assembly having thermal and acoustic capacities and comprising therefor:
- a structural element interposed between an outside environment and an internal volume to be thermally and/or acoustically protected,
- and an inner lining member for lining the structural element, the inner lining member comprising at least one said vacuum, thermal insulating element comprising:
- a first compressed porous structure comprising a porous material having a first density,
- an envelope closed in an airtight manner:
- comprising a barrier wall which is thermoformable and airtight,
- in which envelope is enclosed the first porous structure whose shape is followed by the barrier wall, and
- in which envelope, at outside ambient temperature and outside ambient pressure, a pressure ranging from less than 105 Pa to more than 10−2 Pa prevails, the inner lining member further comprising a second porous structure comprising the same porous material, or a different porous material, having a second density, the second density being lower than the first density, the first and second porous structures being superimposed,
- said assembly being further such that:
- the second porous structure has a pressure equal to the outside ambient pressure, or
- the porous material of the first porous structure has a first density between more than 100 kg/m3 to 800 kg/m3;
- and the porous material of the second porous structure has a second density between 5 kg/m3 to less than 100 kg/m3.
8 more elements
Dependencies are inferred from the claim text.