• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Body panel for refrigerated vehicles, comprising - an outer casing (2) made of at least one gas and liquid-tight material, having opposite main plates (3, 4) and a frame (5) forming fields (6), and a holding core (7) contained inside said outer casing, in contact with said main plates and forming open hollow cells, which communicate with one another, said outer casing (2) being provided with at least one orifice passageway opening inside said outer casing and a closing means for sealing gas and liquid said orifice.
    公开号:FR3047964A1
    申请号:FR1651465
    申请日:2016-02-23
    公开日:2017-08-25
    发明作者:Frederic Chaillou；Benoit Courteille
    申请人:Jean Chereau SAS；
    IPC主号:
    专利说明:

    Body panel for refrigerated vehicles
    The present invention relates to the general field of refrigerated vehicles, especially for the transport of goods.
    More particularly, the present invention relates to the field of wall construction, in particular for the production of bodies of goods vehicles, especially refrigerated road vehicles.
    The vehicle body walls are commonly made in the form of single panels which generally comprise a core made of a common thermally insulating material, for example polyurethane, and plates covering the opposite faces of this core, for example plates of metal sheets or of composite materials of glass fibers and resin, these plates being in one piece for reasons of mechanical strength of the walls and continuity of the exterior surfaces of the walls related to the aesthetics.
    In order to try to improve the thermal insulation characteristics, it is known to produce panels comprising vacuum insulation elements, which are integrated between layers of thermally insulating materials, which envelop them and which are glued, panels further comprising outer cover plates. Such panels are described in patent EP 1 045 079.
    Since the vacuum insulation elements are spaced from one another, there is a discontinuity of the thermal insulation in the direction of the thickness of the panels between the locations where these vacuum insulation elements are located and the places where they are separated by an insulating material. In addition, during their manufacture, these panels require many operations and there are risks of deterioration of the vacuum insulation elements when they are placed between the insulating layers and the outer plates.
    The present invention aims to provide an improved body panel.
    According to one embodiment, there is provided a body panel for refrigerated vehicles, which comprises an outer casing in at least one gas-tight and liquid-tight material, having opposite main plates and a field-forming frame, and a core of maintenance contained within said outer casing, in contact with said main plates and forming open hollow cells, which communicate with each other, said outer casing being provided with at least one through opening opening inside said outer casing and d closure means for sealing gas and liquids against said orifice. The holding core may be in contact with the fields of said outer box. The holding core may comprise at least one porous block with open cells having opposite faces bearing against said opposite main plates.
    Said block may comprise a porous foam of an open cell synthetic material.
    Said block may comprise an open-cell reinforced organic and / or inorganic powder. The holding core may comprise a honeycomb module whose walls forming cells or cells extend between the opposite walls of said outer box and have through passages of communication between these cells and with said orifice.
    The outer casing may comprise at least one metal part.
    The outer casing may comprise at least one layer made of a composite material and at least one metal sheet.
    At least one layer of thermally insulating material and gas and liquid tight, may be interposed between the frame and at least one of said main plates of the outer casing.
    At least a part of the frame and at least one of said main plates of the outer casing can be made in one piece.
    The absolute pressure of the gas inside said outer casing may be less than one hundred millibar (10 kiloNewtons per square meter).
    The material constituting the holding core may have a compressive strength such that under a pressure of one bar (100 kiloNewtons per square meter) its thickness reduction is less than five percent (5%).
    The material constituting the outer casing may have a modulus of elasticity (Young's modulus) of at least eight thousand Newtons per square millimeter (N / mm 2).
    The material constituting the outer casing may have a hardness of between five and fifty barcols.
    The material constituting the outer casing may have a tensile strength of at least fifty Newtons per square millimeter (50 N / mm2).
    Body panels will now be described by way of non-limiting examples, illustrated by the drawing in which: - Figure 1 shows an exploded perspective view of a body panel; - Figure 2 shows a partial cross section of the body panel at any location; - Figure 3 shows a partial cross section of the panel of Figure 1, at a specific location; - Figure 4 shows a partial cross section of an alternative embodiment of the panel of Figure 1; and - Figure 5 shows an exploded perspective view of an alternative embodiment of said body panel.
    According to an alternative embodiment illustrated in Figures 1 to 3, a body panel 1 comprises an outer casing 2 of generally parallelepipedal shape, impervious to gases and liquids.
    The outer casing 2 comprises parallel opposed main plates 3 and 4 which form the outer walls of the panel 1 and a peripheral frame 5 which connects these main plates 3 and 4 and which forms fields 6 of the box 2, these fields 6 being perpendicular to the main walls 3 and 4. The peripheral frame 5 is placed between the peripheral portions of the inner faces of the main plates 3 and 4.
    The surface of the main walls 3 and 4 forming the flanks of the panel 1 can reach several square meters and the thickness of the panel 1 is generally a few centimeters and can be between three and ten centimeters. The thickness of the main plates 3 and 4 and the fields of the peripheral frame 5 may be between one tenth and five millimeters.
    The body panel 1 further comprises an inner retaining core 7 contained inside the outer casing 2. This holding core 7 is in contact with the main plates 3 and 4. Preferably, this holding core 7 is also in contact with the fields 6 of the frame 5 of the outer casing 2. The holding core 7 specifically arranges hollow cells that communicate with each other.
    As illustrated in FIG. 3, the peripheral frame 5 is provided, at a location on its periphery, with a tip 8 mounted in a gastight and liquid-tight manner through one of its fields 6. This end-piece 8 arranges an orifice 9 which communicates with the inside of the outer casing 2 and thus with the hollow cells of the holding core 7. The end piece 8 is provided with a gas and liquid tight closure means. According to the example shown, this closure means comprises a non-return valve 10 mounted in a gas and liquid-tight manner in the orifice 9.
    The tip 8 is connected to a suction device (not shown) to produce inside the outer box 2 a pressure lower than the atmospheric pressure, the relative vacuum obtained inside the outer box 2 being maintained under the pressure. The effect of the non-return valve 10. Thus, the panel 1 is in a state called "vacuum", giving it a quality of thermal insulation. Before this suction operation, at least part of the interior of the outer casing 2 can be dewatered.
    After this evacuation, it can install, for safety, a cap on the nozzle 8 in a gas-tight and liquid-tight manner.
    According to another embodiment, the orifice 9 could be closed directly by a plug, a weld or a glue, gas-tight and liquid. The orifice 9 could be arranged directly through the field 6, without the existence of the tip 9.
    According to an alternative embodiment, the orifice 9 and the means for closing this orifice 10 could be provided through one of the main plates 3 and 4.
    Thus, a body panel 1 with total insulation vacuum, directly usable.
    The outer casing 2 and the holding web 7 are chosen from materials such as the body panel 1, obtained after the vacuum of the outer casing 2, substantially retains its initial shape and is deformed only below a predetermined or desired rate of deformation, that is to say, does not collapse on itself or collapse.
    More specifically, the holding web 7 constitutes a spacer capable of supporting the loads applied to it by the main plates 3 and 4 under the effect of the vacuum created in the outer box 2 and to prevent the opposite plates 3 and 4 of get closer and deform inward. Preferably, the holding core 7 also produces this effect on the peripheral frame 5.
    In addition, thanks to the existence of the hollow cells that it forms and which communicate with each other and with the orifice 9, the holding core 7 at the same time ensures a homogeneity of pressure throughout the interior volume of the outer casing 2 created void.
    The outer casing 2 and the holding core 7 are furthermore chosen from materials such that the quality of thermal insulation of the body panel 1 is further improved, in particular by reducing or avoiding thermal bridges between the main plates 3 and 4 of the outer casing 2.
    The main plates 3 and 4 of the outer casing 2 are further selected in one or more materials such that these plates are shock-resistant.
    The opposite main plates 3 and 4, gas and liquid tight, may be formed, one and / or the other, by metal plates, for example stainless steel, or by multilayer plates including at least one plate made of a composite material, for example fiberglass and resin, and preferably at least one metal sheet, for example aluminum.
    According to an alternative embodiment illustrated in Figures 1 to 3, the holding core 7 comprises a prefabricated block 11 of a porous open-cell foam of a synthetic material, for example polyurethane, forming hollow cells which communicate with each other . The block 11 is in contact and extends regularly over almost the entire inner surface of the plates 3 and 4 of the outer casing 2.
    According to an alternative embodiment, the block 11 may comprise an organic powder or an airgel and / or inorganic reinforced with open cells, for example based on silica or silica or silicon dioxide.
    Under the effect of the vacuum created in the outer casing 2, the main plates 3 and 4 are plated on the corresponding opposite faces of the prefabricated block 11. The hollow cells of the prefabricated block 11 may have a size of between one or a few nanometers and one or a few millimeters.
    Block 11 may be in one piece or may include several parts.
    According to the variant illustrated in Figures 1 to 3, the peripheral frame 5 may comprise glass fiber embedded in a resin and, preferably, at least one metal sheet, for example aluminum, or a plate of a plastic material, gas and liquid tight.
    The peripheral frame 5 has opposite peripheral rims 5a and 5b and which are coupled to the peripheral portions of the inner faces of the main plates 3 and 4 by means of a thin layer of glue impervious to gases and liquids, for example an adhesive epoxy. Thus, a thermal bridge between the main plates 3 and 4, via the frame 5, is avoided.
    According to another embodiment shown in Figure 4, the frame 5 is metallic, for example a stainless steel. This time, one of the edges of the frame 5 is fixed on one of the main plates 3 and 4, for example by gluing or welding, while the other edge is provided with a flange 5a coupled to the other plate via a thick layer 5c of a gas-tight glue and liquid and having a quality of thermal insulation, for example a thick layer of epoxy glue, which limits a thermal bridge between the main plates 3 and 4 Nevertheless, the rim 5a could be welded directly to the adjacent plate.
    According to another variant embodiment illustrated in FIG. 5, the holding core 7 comprises a honeycomb module 12 whose walls 13 delimit hollow cells or cells which extend between the main plates 3 and 4 of the box. outside 2.
    The walls 13 of the honeycomb module 12 extend perpendicular to the plates 3 and 4 and have ends in contact with the inner faces of the plates 3 and 4 so that these walls 13 form spacers between these plates 3 and 4 Preferably, the walls 13 of the periphery of the honeycomb module 12 are in contact with the fields 6 formed by the peripheral frame 5.
    The walls 13 of the honeycomb module 12 have through-passages 14 for communication between the cells or hollow cells and with the orifice 9 of the frame 5. These passages 14 may be formed by holes which pass through the walls 13 or by indentations formed in the ends of the walls 13 and adjacent to the plates 3 and 4 and / or the peripheral frame 5 of the outer casing 2.
    The walls 13 of the honeycomb module 12 are made to support the charges applied to it by the main plates 3 and 4 under the effect of the vacuum created in the outer casing 2, in particular avoiding the buckling of these walls 13 .
    To avoid a thermal bridge between the main plates 3 and 4, the walls 13 of the honeycomb module 12 are chosen from a thermally insulating material, for example glass fibers impregnated with a resin.
    The dimensions of the cells or hollow cells of the honeycomb module 12, parallel to the main plates 3 and 4, may be between five and one hundred millimeters.
    According to an exemplary embodiment, the absolute pressure of the gas inside the outer casing 2 may be less than 100 millibars (ie: 10 kiloNewtons per square meter).
    According to an exemplary embodiment, the material constituting the holding core 5 may have a compressive strength such that, under a pressure equal to one bar (ie 100 kiloNewtons per square meter), its reduction in thickness is less than five percent (5%).
    According to an exemplary embodiment, the material constituting the outer plates 3 and 4 and that constituting the peripheral frame of the outer box 2 may have a modulus of elasticity (or Young's modulus) greater than eight thousand Newtons (8000 Newtons) per square millimeter (N / mm2).
    According to an exemplary embodiment, the material constituting the outer casing 2 may have a hardness of between five and fifty barcols.
    According to an exemplary embodiment, the material constituting the outer casing 2 may have a tensile strength greater than fifty Newtons per square millimeter (50 N / mm 2).
    The body panel 1 may be applied to the construction of walls, pavilions, floors and doors of refrigerated compartments of trucks, vans, semi-trailers, in the form of single panels or panels coupled end-to-end, which can be further covered with layers of paint and / or varnish.
    权利要求:
    Claims (15)
    [1" id="c-fr-0001]
    1. Body panel for refrigerated vehicles, comprising - an outer casing (2) made of at least one gas and liquid-tight material, having opposite main plates (3, 4) and a frame (5) forming fields (6). ), and a holding core (7) contained inside said outer casing, in contact with said main plates and forming open hollow cells, which communicate with one another, said outer casing (2) being provided with at least a through orifice (9) opening inside said outer casing and a closing means for sealing gas and liquids said orifice.
    [2" id="c-fr-0002]
    2. Panel according to claim 1, wherein the holding web (7) is in contact with the fields of said outer box.
    [3" id="c-fr-0003]
    3. Panel according to one of claims 1 and 2, wherein the holding core (7) comprises at least one open-cell porous block (11) having opposite faces bearing against said opposite main plates (3, 4). ).
    [4" id="c-fr-0004]
    4. Panel according to claim 3, wherein said block (11) comprises a porous foam of an open cell synthetic material.
    [5" id="c-fr-0005]
    5. Panel according to claim 3, wherein said block (11) comprises an open-cell reinforced organic and / or inorganic powder.
    [6" id="c-fr-0006]
    6. Panel according to one of claims 1 and 2, wherein the holding core (7) comprises a honeycomb module (12) whose walls (13) forming cells or cells extend between them. opposed walls (3, 4) of said outer box (2) and have through passages (14) for communication between these cells and with said orifice (9).
    [7" id="c-fr-0007]
    7. Panel according to any one of the preceding claims, wherein the outer casing (2) comprises at least one metal part.
    [8" id="c-fr-0008]
    8. Panel according to any one of the preceding claims, wherein the outer box (2) comprises at least one layer of a composite material and at least one metal sheet.
    [9" id="c-fr-0009]
    9. Panel according to any one of the preceding claims, wherein at least one layer (5c) of a thermally insulating material and impervious to gases and liquids, is interposed between the frame (5) and at least one of said plates. main (3, 4) of the outer casing (2).
    [10" id="c-fr-0010]
    10. Panel according to any one of the preceding claims, wherein at least a portion of the frame (5) and at least one of said main plates (3, 4) of the outer box (2) are made in one piece .
    [11" id="c-fr-0011]
    11. Panel according to any one of the preceding claims, wherein the absolute pressure of the gas inside said outer casing (2) is less than one hundred millibar (10 kiloNewtons per square meter).
    [12" id="c-fr-0012]
    12. Panel according to any one of the preceding claims, wherein the material constituting the holding core (7) has a compressive strength such that, under a pressure equal to one bar (100 kiloNewtons per square meter), its Thickness reduction is less than five percent (5%).
    [13" id="c-fr-0013]
    13. Panel according to any one of the preceding claims, wherein the material constituting the outer casing (2) has a modulus of elasticity (Young's modulus) of at least eight thousand Newtons per square millimeter (N / mm 2).
    [14" id="c-fr-0014]
    14. Panel according to any one of the preceding claims, wherein the material constituting the outer casing (2) has a hardness of between five and fifty barcols.
    [15" id="c-fr-0015]
    15. Panel according to any one of the preceding claims, wherein the material constituting the outer casing (2) has a tensile strength of at least fifty Newtons per square millimeter (50 N / mm2).
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3210864B1|2019-01-30|Refrigerated vehicle body panel
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    CA2846970A1|2013-03-14|Glass panel including glass sheets combined together via spacers, and corresponding method for manufacturing same
    EP1052362A2|2000-11-15|Double glazing
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    FR3011028A1|2015-03-27|COVER FOR A BOOSTER FRAME OF A CEILING TRAPPER DORMANT AND TRAPPER HAVING SUCH A COVER
    EP1991752B1|2012-10-31|Assembly consisting of a multiple glazing unit and of a profile, and profile intended for a glazing unit
    EP1908913A1|2008-04-09|Fixation of glazing
    FR2522052A1|1983-08-26|Composite thermal and acoustic insulation panel - has high vacuum inserts in cellular core material
    CH711018B1|2020-04-15|Composite building element for the realization of joinery or carpentry works.
    FR2926097A1|2009-07-10|Construction method, involves dividing separation space into two sectors, and separating one sector from another in airtight manner, where sectors adjoin outer and inner partition elements, respectively
    同族专利:
    公开号 | 公开日
    EP3210864A1|2017-08-30|
    EP3210864B1|2019-01-30|
    FR3047964B1|2018-03-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3011254A|1959-04-06|1961-12-05|North American Aviation Inc|Double differential pressure honeycomb sandwich panel brazing|
    FR2483564A1|1980-06-03|1981-12-04|Bourdel Jacques|Double-skinned panels for glazing or storage systems - has the inner space maintained under vacuum|
    EP1045079A2|1999-04-12|2000-10-18|Isuzu Motors Limited|Heat insulating wall member, and method of manufacturing the same|
    DE102008011266A1|2008-02-27|2008-07-31|Daimler Ag|Vehicle body component e.g. vehicle frame, has layer provided with closed hollow space, where vacuum prevails in hollow space, and layer is formed as honeycomb core, massive core, massive web core or structure core|
    WO2020185847A1|2019-03-12|2020-09-17|Thor Tech, Inc.|Composite flooring for recreational vehicles|
    FR3100218A1|2019-09-02|2021-03-05|Jean Chereau Sas|Refrigerated vehicle body module comprising a vacuum insulation panel, and associated manufacturing process|
    WO2022034624A1|2020-08-10|2022-02-17|Aeronautical Service S.R.L.|Structural multilayer panel|
    法律状态:
    2017-02-08| PLFP| Fee payment|Year of fee payment: 2 |
    2017-08-25| PLSC| Publication of the preliminary search report|Effective date: 20170825 |
    2017-12-21| PLFP| Fee payment|Year of fee payment: 3 |
    2019-12-26| PLFP| Fee payment|Year of fee payment: 5 |
    2021-01-13| PLFP| Fee payment|Year of fee payment: 6 |
    2022-01-20| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1651465A|FR3047964B1|2016-02-23|2016-02-23|BODY PANEL FOR REFRIGERATING VEHICLES|
    FR1651465|2016-02-23|FR1651465A| FR3047964B1|2016-02-23|2016-02-23|BODY PANEL FOR REFRIGERATING VEHICLES|
    EP17156463.6A| EP3210864B1|2016-02-23|2017-02-16|Refrigerated vehicle body panel|
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