WO2014075910A1

WO2014075910A1 - Refrigerator

Info

Publication number: WO2014075910A1
Application number: PCT/EP2013/072561
Authority: WO
Inventors: Robert Stahl; Herbert Weibl
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2012-11-15
Filing date: 2013-10-29
Publication date: 2014-05-22
Also published as: CN104813125A; DE102012220929A1; PL2920531T3; EP2920531B1; CN104813125B; EP2920531A1

Abstract

The present invention relates to a refrigerator having an inner liner (201) that has an inner liner wall (203) having a support surface (207) for supporting a shelf (209) and a guide structure (211) on the support surface (207) for laterally guiding said shelf (209), said guide structure projecting relative to the inner liner wall (203).

Description

The refrigerator

The present invention relates to a refrigerator with an inner container. The document WO 2009/124867 A1 describes a refrigerator with a refrigerator or freezer with a rear wall, a door and side walls having guide elements along which a shelf is drawer-like extendable. Each side wall comprises two holding projections arranged at the same height, on which the shelf can be mounted in a displaceable manner.

Inner containers for refrigerators may generally have drawn bulges, which serve as a lateral base for storage shelves, such as

extendable glass plates. For cost reasons, rectangular parallel glass plates are often used as storage shelves. Due to a production-related slope of the inner container wall - a so-called Entformschräge - therefore creates a wedge-shaped gap between the storage tray and the inner container. The storage plate therefore has a game and can be moved laterally back and forth.

Thus, a support of the storage tray is guaranteed and the Entformschräge the wall and the clearance of the storage tray can be compensated, the bulges protrude relatively far into the interior of the inner container. Due to this design, a large draft in the region of the bulges during vacuum drawing, so that thick plastic boards are required to ensure sufficient wall thickness and stability. However, if the storage tray does not rest centered, the bulges are loaded at their outer tips and may break or be damaged.

It is the object underlying the invention to provide a refrigeration device with improved structural design.

This object is achieved by an object with the characteristics according to the

independent claim solved. Advantageous embodiments of the invention are the subject of the figures, the description and the dependent claims. According to one aspect of the invention, the object is achieved by a refrigeration device having an inner container, which has an inner container wall, with a bearing surface for Placing a storage tray and a relation to the Innenbehalterwand projecting guide means on the support surface for laterally guiding the storage tray. The inner container is for example a vacuum-drawn

Plastic inner container. The inner container wall is, for example, a side wall of the inner container. The storage tray may be an extendable or fixed glass plate.

As a result, the technical advantage is achieved, for example, that the guide of the storage tray is extended during removal and insertion, so that the storage tray is at a designated location on the support surface and loads on the edge of the support surface can be avoided. In addition, a high stability is achieved by the uniform support of the storage tray on the support surfaces. Next, the technical advantage is achieved that a tilting of the Absteilfläche is avoided.

A refrigeration appliance is understood in particular to mean a domestic refrigeration appliance, that is to say a refrigeration appliance used for household purposes in households or in the gastronomy sector, and in particular for storing food and / or drinks at specific temperatures, such as, for example, a refrigerator

Freezer, a fridge freezer, a freezer or a wine fridge. In an advantageous embodiment of the refrigeration device, the guide device is formed by a wall section of the inner container wall. As a result, the technical advantage is achieved, for example, that the guide device is an integral part of the inner container wall and can be formed in a simple manner in the manufacture of the inner container.

In a further advantageous embodiment of the refrigeration device runs the

Wall section diagonally between the support surface and the inner container wall. As a result, the technical advantage is achieved, for example, that a pressure force exerted on the support surface can be transmitted as a tensile force to the inner container wall and the stability of the guide surface is improved.

In a further advantageous embodiment of the refrigeration device is the

Guiding device formed by an inclined surface. As a result, for example, the technical advantage is achieved that the storage tray slides when placed on the support surface in the correct position. In a further advantageous embodiment of the refrigeration device, the guide device is formed by a curved surface. As a result, for example, the technical advantage is achieved that tilting of the storage tray is prevented. In a further advantageous embodiment of the refrigeration device is the

Guiding device formed by a crescent-shaped bulge of the inner container wall. As a result, for example, the technical advantage is achieved that reduces a stretching of the plastic board in a production of the inner container. In a further advantageous embodiment of the refrigeration device is the

Guiding device formed by a crescent-shaped bulge of the inner container wall. As a result, for example, the technical advantage is achieved that the contour can better fill with foam. In a further advantageous embodiment of the refrigeration device is the

Guiding device designed to limit lateral play of the storage tray. As a result, for example, the technical advantage is achieved that the

Shelf is positioned exactly. In a further advantageous embodiment of the refrigeration device is the

Guidance device formed, a Entformschräge the inner container

compensate. As a result, for example, the technical advantage is achieved that an oblique course of the inner container wall does not increase the game of the storage tray. In a further advantageous embodiment of the refrigeration device is the

Guiding device formed by a quarter-spherical bulge of the inner container wall. As a result, for example, the technical advantage is achieved that a

Drawing of a plastic board is reduced when pulling the guide device.

In a further advantageous embodiment of the refrigeration device has the

Guide device on two different radii of curvature. As a result, for example, the technical advantage is achieved that the guide device can be particularly well adapted to the spatial conditions and both insertion and guiding the storage tray is facilitated. In the depth direction of the inner container (viewing direction of the refrigerator door on the rear wall of the inner container), the guide device can extend along the entire support surface. Alternatively it can be provided that the guide surface extends only over a portion of the support surface. For example, the guide surface in

Depth direction may be arranged only in a central portion of the support surface.

In a further advantageous embodiment of the refrigerator, the support surface is formed by a laterally pulled out of an inner container wall bulge. As a result, the technical advantage is achieved, for example, that the bulge is an integral part of the inner container wall and can be formed in a simple manner in the manufacture of the inner container.

In a further advantageous embodiment of the refrigeration device, the bulge is formed rib-shaped in the inner container wall. As a result, for example, the technical advantage is achieved that an elongated support surface is realized.

In a further advantageous embodiment of the refrigeration device runs the

Guide means along the rib-shaped bulge. This will

For example, the technical advantage achieved that the storage tray is guided along a large distance.

In a further advantageous embodiment of the refrigeration device, the bulge is formed crescent-shaped or quarter-spherical in the inner container wall. As a result, for example, the technical advantage is achieved that the bulge has a constant curvature and a uniform stretching of the plastic board is achieved.

In a further advantageous embodiment of the refrigeration device, the refrigeration device comprises a further support surface for placing the storage tray and a further guide device protruding from the inner container wall on the other

Support surface for lateral, opposite guiding the storage tray. As a result, the technical advantage is achieved that the storage tray can be guided and centered from two sides. In addition, the shelves are not damaged during transport of the refrigerator. In addition to the support surface and possibly existing additional support surface, the storage tray can also be held by other brackets of the refrigerator. Preferably, the other brackets are integrally formed on the inner container. For example, the storage tray can be held by a respective support surface, another support surface and two other brackets. The further holders can be arranged on the opposite side walls of the inner container and / or be formed by rib-shaped bulges on the inner container. The bearing surface or the further bearing surface are spatially separated from the other positions, ie separated from each other by a support surface-free and bracket-free region of the inner container wall.

Preferably, the support surface and the possibly existing additional support surface in a front in the depth direction half, preferably a front quarter of the inner container are arranged.

The support surface or the further support surface may be shorter in the depth direction than the other holders. The bearing surface or the further bearing surface and the associated guide devices can extend in the depth direction over less than a quarter of the extension of the storage tray in the depth direction, preferably less than 20 percent, more preferably less than 10 percent. This ensures a simple design of the inner container.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

Fig. 1 is a schematic view of a refrigerator; 2 is a plan view of a drawn inner container.

3 is a plan view of a drawn inner container with a guide device. 4 shows a cross-sectional view through the inner container with the guide device; Figure 5 is a cross-sectional view through the inner container with the guide device with a resting shelf.

Fig. 6 is a perspective view of the inner container;

Fig. 7 is another perspective view of the inner container;

8 shows a cross-sectional view through the inner container with the guide device, and FIG. 9 shows a perspective view of the inner container.

Fig. 1 shows a refrigerator representative of a refrigerator 100 with an upper refrigerator door 153 and a lower refrigerator door 155. The refrigerator is used for example for cooling food and includes a refrigerant circuit with an evaporator, a compressor, a condenser and a throttle body. The evaporator is a heat exchanger in which after expansion the liquid

Refrigerant by heat absorption from the medium to be cooled, i. the air inside the refrigerator is evaporated.

The compressor is a mechanically operated component, the refrigerant vapor from the

Evaporator sucks and ejects at a higher pressure to the condenser. The condenser is a heat exchanger in which, after compression, the vaporized refrigerant is released by heat release to an external cooling medium, i. the ambient air is liquefied. The throttle body is a device for the continuous reduction of the pressure by cross-sectional constriction.

The refrigerant is a fluid used for heat transfer in the cryogenic system which absorbs heat at low temperatures and low pressure of the fluid and releases heat at higher temperature and pressure of the fluid, usually including changes in state of the fluid.

Inside the refrigeration device is a vacuum-drawn inner container, which is backfoamed for thermal insulation from the environment and forms the inner walls of the refrigerator. The inner container is drawn from a plastic plate with a certain thickness. The thickness of the plastic board is determined by the contours of the inner container. FIG. 2 shows a plan view of the drawn inner container 101. The inner container 101 has a Entformschräge so that it can solve after a drawing process from the mold. For an insertable storage tray 109, such as a glass plate, crescent-shaped bulges 105 or ribs are pulled in the inner container, which form a support surface 107 for the storage tray 109. Due to the shape of the

Crescent-shaped bulges 105, the strength of the plastic board is specified. By Entformschrägen 1 15 creates a lateral clearance of the storage tray 109 in the inner container.

It is the object of the present invention to improve the bearing surfaces 107 in such a way that the stability improves and the strength of a plastic circuit board can be reduced. Fig. 3 shows a plan view of a drawn inner container 201 with a

Guide device 21 1. From a inner container wall 203, a bulge 205 is pulled out laterally, which forms a bearing surface 207 for placing the storage plate 209. In addition, above the support surface 207, a guide device 21 1

pulled out. The guide device 21 1 serves to guide the side

Storage plate 209 opposite the inner container wall 203. The guide means 21 1 is in this case a second surface which protrudes from the inner container wall 203 and is placed on the support surface 207. In addition, the guide means 21 1 can also be used to transmit a force exerted by the Abstellplatte force on the support surface 207 as a pulling force on the inner container wall 203.

The guide device 21 1 is formed by a wall portion which extends diagonally between the support surface 207 and the inner container wall 203. In addition, the guide means 21 1 include a guide surface for guiding the storage tray 209 when placed on the support surface or pulling out the storage tray 209.

FIG. 4 shows a cross-sectional view through the inner container wall 203 of FIG

Inner container 201 with the guide device 21 1. The guide means 21 1 extends diagonally between the inner container wall 203 and the support surface 207 and is formed by an inclined surface. However, the guide means 21 1 may also be formed by a curved surface or by a crescent-shaped bulge of the inner container wall 203. In a further embodiment, the Guide device 21 1 formed by a quarter spherical bulge of the inner container wall 203. In general, any shapes or elements that are suitable for guiding the storage tray 209 laterally on the support surface 207 may be used.

Below the support surface 207 is the bulge 205. The fact that the guide device 21 1 projects laterally from the inner container wall 203, a lateral clearance of the storage plate 209 can be limited.

Fig. 5 shows a cross-sectional view through the inner container 201 with the

Guide device 21 1 with overlying shelf 209. Due to the diagonal course of the guide means 21 1, the storage tray 209 when placed on the

Support surface 207 guided in the intended position and secured laterally against shifting or slipping. By the guide device 21 1 can thus a

Entformschräge be compensated 215 of the inner container 201.

6 shows a perspective view of the inner container 201 with protruding bulge 205. The contact surface 207 is formed on the upper side of the bulge 205. The support surface 207 is on the guide device 21 1 with the

Inner container wall 203 connected. The guide device 21 1 can two

have different radii of curvature. For example, the

Guide device 21 1 curved with a large radius and two small radii are integrated. In a further embodiment, the guide device can also be formed by a non-curved, oblique surface with fillets. In addition, in the inner container wall 203 is an elongated, rib-shaped

Formed bulge 213, which also has a support surface on which the

Storage shelf 209 rests. Also at this point, a guide device may be formed. The guide means may additionally apply the pressing force exerted on the support surface along the length of the rib-shaped recess as a tensile force on the

Transferred inner container wall. The protruding from the inner container wall 203 surface can thereby along the rib-shaped bulge for balancing the

Entformschräge run.

In general, the guide device can also be arranged as a curved, spherical-like shape at a specific location or on a short rib. FIG. 7 shows a further perspective view of the inner container 201, which is backfoamed for thermal insulation from the environment and forms the inner walls of the refrigeration device. The flatter and wider a contour 205 in the inner container 201 for foaming, the easier it is that the foam penetrates completely and reliably. The reduced length of the support surface 207, which is made possible by the guide means 21 1, and the opening of the contour through the

Guide device 21 1, for example, formed by an applied half moon, therefore facilitate the foaming. The shape of the guide 21 1 and the bulge 205 determines the size of the guide surface and the opening width when pulling the inner container 201.

The shape of the guide device 21 1 is preferably matched to the thickness of the storage plate 209. When inserting the storage tray 209 in the inner container 201, the storage tray 209 is centered on the protruding surface of the guide 21 1. The outstanding surface is thus used as a guide. By the leadership of the storage shelves by the guide means 21 1, the protrusion of the bulge 205 in the

Inner container 205 are reduced, since the forces are not exerted by the storage plate 207 in an outer region of the support surface.

In a so-called full moon shape, another half-moon-shaped guide device 21 1 is placed on a crescent-shaped bulge 205. The

Guide means may be formed by a protruding from the inner container side wall second surface, which is placed on an existing lower rib-shaped protrusion.

Fig. 8 shows a comparable to FIG. 4 cross-sectional view through the

Inner container wall 203 of the inner container 201 with the guide device 21 first In contrast to the embodiment of Fig. 4, however, the guide means 21 1 is formed by a curved surface. The guide device 21 1 protrudes laterally relative to an adjacent section of the inner container wall 203 into the receiving space for refrigerated goods formed by the inner container 201. FIG. 9 shows a perspective view, comparable to FIG. 6, of the inner container 201 with protruding bulge 205. The contact surface 207 and also the contact surface 207 carrying bulge 205 has an extension 917 in the depth direction (viewing direction of the refrigerator door on the rear wall of the inner container) of the inner container 201, which is smaller than an extension 919 of the guide device 21 1 in the depth direction. In general, the refrigeration device 100 further laterally from an inner container wall 203 pulled out bulges with other bearing surfaces for placing the

Include storage tray having further guide means 21 1 for centering the Abstellpatte. In addition, the guide means 21 1 can transmit a tensile force from the further bearing surface to the inner container wall 203.

By the guide means the advantage is achieved that a lower draw during vacuum drawing is produced and thinner plastic blanks for the production of

Inner container can be used. In addition, the storage plates at

Pulling out and inserting guided by the guide device. When transporting the refrigerator, the storage plates and the inner container are therefore not damaged.

By a uniform bearing surface of the storage plates on the ribs a high stability is achieved. A ribbed contour can be additionally optimized by the centric guidance. Nevertheless, a gap remains despite improved leadership of the

Store shelves received, so that a lateral air circulation on the storage shelves is still possible. The design can be transferred to current series products, thereby directly saving costs and improving their function. With a vacuum drawing, a higher process reliability is achieved.

The guide elements, for example, as full moon contours, can be used for extendable or fixed shelves. In both cases, the technical advantage is achieved that the storage tray is guided to a designated position.

All of the features explained and shown in connection with individual embodiments of the invention may be provided in different combinations in the article according to the invention in order to simultaneously realize their advantageous effects.

The scope of the present invention is given by the claims and is not limited by the features illustrated in the specification or shown in the figures. LIST OF REFERENCE NUMBERS

100 refrigeration unit

101 inner container

103 inner container wall

105 bulge

107 bearing surface

109 storage shelf

1 15 draft angle

153 upper refrigerator door

155 lower refrigerator door

201 inner container

203 inner container wall

205 bulge

207 contact surface

209 storage shelf

21 1 guide device

213 rib-shaped bulge

215 draft angle

917 extension of the support surface

919 extension of the guide device

Claims

Refrigerating appliance (100) with an inner container (201) having an inner container wall (203), with a support surface (207) for placing a storage plate (209);

characterized by a relative to the inner container wall (203) projecting guide means (21 1) on the support surface (207) for laterally guiding the storage tray (209).

Refrigerating appliance (100) according to claim 1, characterized in that the

Guide means (21 1) by a wall portion of the inner container wall (203) is formed.

Refrigeration appliance (100) according to claim 2, characterized in that the wall section extends diagonally between the support surface (207) and the inner container wall (203).

Refrigerating appliance (100) according to one of the preceding claims, characterized

characterized in that the guide means (21 1) is formed by an inclined surface.

characterized in that the guide means (21 1) is formed by a curved surface.

in that the guide device (21 1) is formed by a crescent-shaped or by a quarter-spherical bulge of the inner container wall (203).

in that the guide device (21 1) is designed to limit lateral play of the storage plate (209).

characterized in that the guide device (21 1) is formed, a

To compensate for the draft angle of the inner container (201).

9. Refrigerating appliance (100) according to one of the preceding claims, characterized in that the guide means (21 1) two different

Has radii of curvature.

10. Refrigerating appliance (100) according to one of the preceding claims, characterized

characterized in that the bearing surface (207) by a laterally from a

Inner container wall (203) pulled-out bulge (205) is formed.

1 1. Refrigerating appliance (100) according to claim 10, characterized in that the bulge (205) rib-shaped in the inner container wall (203) is formed.

12. Refrigerating appliance (100) according to claim 1 1, characterized in that the

Guide means (21 1) along the rib-shaped protrusion (215) extends.

13. Refrigerating appliance (100) according to claims 10 to 12, characterized in that the bulge (205) is formed crescent-shaped or quarter-spherical.

14. Refrigerating appliance (100) according to one of the preceding claims, characterized

characterized in that the refrigeration device (100) has a further support surface (207) for placing the storage tray (209) and a further guide device (21 1) projecting relative to the inner container wall (203) on the further support surface (207) for the opposite lateral guiding of the storage tray (20). 209).