RU198379U1 - Isothermal box body - Google Patents

Abstract

The utility model relates to vehicles for the carriage of goods requiring climate control, in particular, to the structure of an isothermal box body to ensure the temperature regime of deep freezing. In an isothermal box body having an all-metal frame, consisting of the frames of the box body elements welded from profile pipes included in heat-insulating panels containing outer and inner cladding, heat-insulating panels contain a combined heat-insulating layer consisting of deformable polystyrene foam with transverse notches and rigid polyurethane foam. Cutouts are made in the strips of deformable polystyrene foam insulating pipes located inside the contour of the frames of the van body elements. The planes, limited by strips of deformable polystyrene foam and outer and inner cladding, are filled with rigid polyurethane foam. The technical result from the use of the claimed utility model is to reduce the manufacturing time and laboriousness of assembling sandwich panels, improving the thermal insulation properties of the body-box. 5 ill.

Description

The utility model relates to vehicles for the transport of goods requiring climate control, in particular, to the design of an insulated box body to ensure the temperature regime of deep freezing.

Known isothermal box body containing interconnected adjacent heat-insulating panels, each of which is formed by the outer and inner metal sheets, forming respectively the outer and inner skin of the walls and roof of the body, and located between the metal sheets of the insulating layer. The connection between the panels includes a corner located along the body, each shelf of which is fixedly connected to the inner sheet of one of the adjacent heat-insulating panels (patent of the Russian Federation No. 2208531, class B60P 3/20, 2003).

A disadvantage of the known isothermal body is the significant complexity of operations for assembling a box body from frameless sandwich panels, the presence of gaps between the panels arising during the installation of the body, as well as during deformation of the body during operation. The gaps between the sandwich panels cause thermal bridges. During a dynamic impact, the connection of the panels to each other through the sheet metal of the external and internal sheathing is broken, which is often the cause of the destruction of the entire van body

Known isothermal box body, protected by a patent of the Russian Federation for utility model No. 59498, class. B60R 3/20 publ. 2006.12.27. The insulated van body contains interconnected adjacent heat-insulating panels, each of which is formed by the outer and inner metal sheets forming respectively the outer and inner skin of the walls and the roof of the body, and a heat-insulating layer located between the metal sheets. The connection between the panels includes a corner located along the body, each shelf of which is connected by means of a fixed connection to the inner sheet of one of the adjacent heat-insulating panels. The van body contains a single frame formed by metal frames placed one at a time inside the heat-insulating layer of each panel and the corners fixedly connected to the frames. Each of these frames is equipped with two jumpers, and in cross section it has the shape of a channel, the height of which is less than the thickness of the insulating layer of the panel.

A disadvantage of the known isothermal body is the presence of metal-intensive, heavy frame panels, the significant complexity of the manufacture of panels, the difficulty of precise pairing of the channel and the corner without violating the integrity of the insulating layer, insufficient reliability of bolted joints used to connect the panels.

Closest to the claimed technical essence and the achieved result, selected as the closest analogue, is an isothermal box body protected by RF patent for utility model No. 85417, class. B60P 3/20, publ. 08/10/2009

The insulated box body contains a frame and heat-insulating panels consisting of a heat-insulating layer, outer and inner skins. The frame of the van body consists of the carcasses of the elements of the van body, made all-metal welded from the profile pipe, included in the heat-insulating panels, in the heat-insulating layer of which technological cuts are made in accordance with the placement of the profile pipe of the frame. Frameworks of van body elements included in heat-insulating panels are welded together.

The disadvantage of this model of the van body is the relatively non-optimal time and quality manufacturing factors due to the long (several hours) and more time-consuming preparation and gluing of sandwich panel elements with insulation - polystyrene foam.

The technical problem solved by the proposed utility model is the improvement of the insulated box body.

The technical result from the use of the claimed utility model is to reduce the time of manufacture and the complexity of the assembly of sandwich panels, improve the insulating properties of the body of the van.

The specified result is achieved by the fact that in an insulated box body having an all-metal frame, consisting of frame bodies of a box body, welded from a profile pipe, included in heat-insulating panels containing inner and outer skin, heat-insulating panels contain a combined heat-insulating layer consisting of deformable polystyrene foam with transverse cuts and rigid polyurethane foam, while in the strips of deformable polystyrene foam, insulating pipes located inside the contour of the carcass elements of the body of the van, cutouts are made, and the cavities limited by the strips of deformable polystyrene and the outer and inner lining are filled with rigid polyurethane foam.

In FIG. 1 shows a General view of the frame of the heat-insulating panel of a box body; in FIG. 2 location of deformable expanded polystyrene; in FIG. 3 is a cross-sectional view of a heat-insulating panel with a frame, a combined heat-insulating layer, outer and inner skins; in FIG. 4 - node connection frames of insulating panels; in FIG. 5 - transverse incisions in a deformable polystyrene foam.

The insulated box body contains an all-metal frame consisting of frames of box body elements welded from a profile pipe 1 included in heat-insulating panels containing an outer skin 2, a combined heat-insulating layer consisting of deformable polystyrene foam 3 and rigid polyurethane foam 4, and an inner skin 5. Cutouts 6 are made in the strips of deformable polystyrene foam 3, insulating pipes located inside the contour of the carcass elements of the body of the van. Cavities 7, limited by strips of deformable polystyrene foam with transverse cuts 8, and the outer and inner sheathing, are filled with rigid polyurethane foam.

The insulated box body is made as follows.

The metal frames of the individual elements of the van body are made: roof, floor, front and side sides from the profile pipe 1 (Fig. 1). The outer skin 2 is fastened to the frame of individual elements, for example, sheet metal with the help of L-shaped bends and self-tapping screws (Fig. 3).

Stripes of deformable polystyrene foam 3 (Fig. 2) with melted heated string, transverse cuts 8 to a depth of 5 mm through 3-4 cm (Fig. 5) are laid out tightly (without gaps) through the pipes of the frame.

The polyurethane foam 4 penetrating through these cuts extends the bonding area of the outer 2 and inner 5 skin.

In the strips of deformable polystyrene foam 3 for the inner tubes of the carcass, a notch 6 is melted to fit the pipe (Fig. 3).

In the case of using thin-sheet metal for inner 5 sheathing in strips of deformable polystyrene foam 3, this string makes a longitudinal incision under the bend of the sheet.

Thus, cavities 7 are formed under the filling of rigid polyurethane foam 4. The frame is placed in the press.

Stacking, oriented on the strip of polystyrene foam 3, the inner lining 5. Close the press, deforming the polystyrene foam 3 in order to prevent it from extruding when pouring polyurethane foam 4. In each formed cavity 7, limited by the stripes of deformable polystyrene foam 3 and the outer 2 and inner 5 lining, from the filler side machines make technological holes for the injection of rigid polyurethane foam 4 and air outlet. Rigid polyurethane foam 4 is injected into each formed cavity 7 of a separate heat-insulating panel.

The sectional injection method guarantees high quality thermal insulation panels.

A variety of materials (plywood, plastic, etc.) can be used as the outer 2 and inner 5 lining.

The formation of the van body is as follows:

carcasses of van body elements included in heat-insulating panels are pulled together to touch the carcass tubes (Fig. 4) and welded together, choosing modes so that the combined heat-insulating layer is not disturbed. To eliminate the gaps between the panels, the thickness of the strip of deformable expanded polystyrene should be greater than the sum of the corresponding dimensions of the pipes being pulled together.

The joints between the welded frames of the insulating panels are closed on both sides with decorative corners.

Thus, the proposed isothermal box body containing a frame from a steel profile pipe, a combined heat-insulating layer of deformable polystyrene of the PSBS-35 brand and rigid polyurethane foam with a low coefficient of thermal conductivity, allows not only to preserve the advantages of the "frame sandwich", but also to improve the thermal insulation characteristics of individual sandwich panels, at the same time eliminating the problem of possible gaps between the sandwich panels during assembly and operation of the box body, and reduce the manufacturing time and laboriousness of the assembly of the sandwich panels.

Claims (1)

An insulated box body having an all-metal frame, consisting of frame bodies of a box body welded from a profile pipe included in heat-insulating panels containing external and internal cladding, characterized in that the heat-insulating panels contain a combined heat-insulating layer consisting of a deformable expanded polystyrene with transverse cuts and rigid polyurethane foam, while in the strips of deformable polystyrene foam, insulating pipes located inside the contour of the carcass elements of the body of the van, cuts are made, and the cavities limited by the strips of deformable polystyrene and the outer and inner skins are filled with rigid polyurethane foam.

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