WO2012140107A1

WO2012140107A1 - Refrigerator and method for producing a refrigerator

Info

Publication number: WO2012140107A1
Application number: PCT/EP2012/056621
Authority: WO
Inventors: Bernd Schessl
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2011-04-14
Filing date: 2012-04-12
Publication date: 2012-10-18
Also published as: DE102011007422A1

Abstract

Refrigerator, in particular domestic refrigerator, having an internal container (23) which delimits a coolable internal compartment for products to be chilled and which has at least one container wall with an outer surface (24), having at least two electrical components, and having an electrical line (29) which connects the electrical components and is routed along the outer surface (24) of the at least one container wall, characterized in that the outer surface (24) has at least one holder (25) to which the electrical line (29) is fixed.

Description

Refrigeration device as well

Method for producing a refrigeration device

The invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, comprising an inner container which defines a coolable interior for refrigerated goods and which has at least one container wall with an outer surface, at least two electrical components and an electrical line connecting the electrical components, along the outer surface the at least one

Container wall is guided.

DE 10 2008 044 215 A1 relates to a household refrigerating appliance with at least one housing part, opposite the at least one elongated component in one

predetermined mounting distance is arranged by means of a position-positioning element. To a manufacturing technology easier position positioning at least one

elongated component to enable at least one housing part, is proposed as Lagepositionierungselement an inner ring member having a plurality of its outer circumference, freely outwardly projecting Abstützflügeln, each of which is designed resiliently.

The invention is based on the object, an electrical line on the outer surface an inner container of a refrigerator, in particular domestic refrigeration appliance, prefixed in an optimized manner at a predetermined position. Under a refrigeration device is in particular a household refrigeration appliance understood, ie a refrigeration appliance for household management in households or possibly in the

Catering area is used, and in particular serves to store food and / or drinks in household quantities at certain temperatures, such as a refrigerator, a freezer, a fridge-freezer, a freezer or a wine storage cabinet.

The object is achieved with a refrigeration device, in particular household refrigeration appliance, comprising an inner container which defines a coolable interior for refrigerated goods and which has at least one container wall with an outer surface, at least two electrical components and an electrical line connecting the electrical components, along the outer surface of the at least one

Container wall is guided, wherein the outer surface has at least one holder to which the electrical line is fixed. The at least one holder may be fixedly disposed at a predetermined position on the outer surface of the inner container. Thus, the electrical line connected to the at least one holder can be arranged in a predetermined preassembly position on the inner container. A pre-assembly of the electrical line can be partially or fully automated. The assembly costs can be lowered. The process reliability can be significantly increased and the product quality can be improved. There may be advantages for subsequent operations. Electrical components may be for example a motor of a compressor of a refrigerant circuit for cooling the interior, a control device, a lighting device or a display and / or operating unit of the household refrigerating appliance. The outer surface may comprise at least one holder, on which the electrical line is kept prefixed in a space formed by the outer surface of the inner container and an outer shell before foaming the gap with a heat insulating material. The electrical line can thus be foamed in a heat insulating layer formed between the inner container and the outer shell at a predetermined position. That is, the outer surface of the container wall is understood to be the foam-side surface of the inner container.

The inner container and the at least one holder can be made of plastic and connected to each other. This can be done particularly cost-effective production of the holder in particular. It can be facilitated the establishment of a connection between the inner container and holder.

The at least one holder may be connected to the inner container by friction welding, ultrasonic welding, gluing or direct molding. This can be a cost-effective and at the same time sufficiently durable connection between the

Inner container and the at least one holder are made. A connection By means of friction welding can be particularly quickly loaded after their production. For example, bonding by means of bonding makes it possible to join non-weldable materials. The at least one holder can be attached without preparatory modification of the inner container. In a connection by direct molding a separate operation for attaching the at least one holder omitted. It can be connected to the inner container a plurality of, in particular at equal intervals arranged holder for fixing a single electrical line. The electrical line can thus be prefixed at a predetermined position on the inner container. The distances between the holders can correspond to distances of tabs of an electrical line. The at least one holder may be formed as a pin projecting outwardly from the outer surface of the container wall, to which the electrical line is connected by means of a connected to the electrical line, in particular separately

attached or integrally formed tab is attached. Thus, the electrical line can be prefixed spaced from the outer surface of the container wall. A separately attached to the electrical line tab may allow the use of lines that otherwise have no suitable connectivity. With the electrical line integrally formed tabs may be advantageous because then attaching separate tabs can be omitted.

The electrical line may have a plurality of tabs, which are formed in particular by uniformly spaced passages, circular openings, perforations or perforation holes, in particular in an insulation of the electrical line. This electrical line can be used for a variety of applications and there may be a specific spacing of the passages,

Circular openings, perforations or perforation holes are avoided, which impedes variable usability. By forming the passages, circular openings, perforations or perforation holes in an insulation of the electrical line, an already existing material and / or a suitable suitable area of the electrical line can be used. It results in a structurally and in terms of material use very efficient arrangement. The distances of the tabs of the electric Line can correspond with intervals of arranged on the container wall holders.

The electrical line can be a multi-core, multi-perforated flat cable. In particular, in a flat cable receiving connection contours can be arranged in an already existing area of the cable. For example, perforation holes may be arranged in a region between cores of the flat cable. Alternatively or additionally, separate areas for the arrangement of perforation holes may also be provided on the flat cable.

The electrical lead may include one or more vias, circular openings, perforations having respective female connection contours configured to latch the electrical lead to an undercut region of the retainer. Thus, a simple connection of electrical line and holder and at the same time a good backup can be achieved in the assembled state.

The at least one protruding pin may have a head and a shank which, for forming an undercut for locking the tab, in particular the passage, the circular opening, the perforation or the perforation hole of the electrical line, a reduced cross-section with respect to the head, in particular

having reduced circular cross-section. Thus, the tab, in particular during the following steps in the production of household refrigeration appliance, safely positioned and defined by the outer surface of the inner container wall to be kept objected to.

Summarized and shown in other words, thus resulting in an optimization of the cable preassembly on a by the invention, among others

Refrigerated goods container by attaching pins to the refrigerated goods container. The connection can be made by means of friction welding, ultrasound, gluing or other methodology.

Perforated flat cable ties are now easily and reliably laid over the pins. This can be a fixation with tape in front of the

Foaming omitted. The cable pre-assembly can be done with lower wage costs done, the cable pre-assembly is teilautomatisierbar, it is a higher

Process reliability given and the foaming process can be improved.

Further features and advantages will become apparent from the following description of an embodiment with reference to the accompanying figures. Concrete features of this embodiment may represent general features of the invention. They show schematically and by way of example:

1 is a perspective view of a household refrigerator with a

Inner container with a coolable interior for refrigerated goods, Fig. 2 is a perspective partially transparent view of the household refrigerator with

Inner container and outer shell and

Fig. 3 is a cable preassembly on the inner container of the household refrigerator. Fig. 1 shows a perspective view of a household refrigerator 1 with a

Refrigeration cycle system. The household refrigerator 1 has a thermally insulated inner container 2 with a coolable interior 3, 4 for refrigerated goods. For cooling, a chiller, partly shown here, is provided which extracts heat from the interior 3, 4 during operation and releases it to the outside. Optionally, the receiving space and moisture can be withdrawn. The chiller can in particular as

Refrigerant circuit with at least one compressor 5, a condenser and an evaporator be executed.

The illustrated in Fig. 1 domestic refrigerator 1 has an outer shell 6, in which the inner container 2 is received. The inner container 2 is in an above

arranged freezer compartment 3 and a lower cooling compartment 4 is divided. The freezer compartment 3 is generally used for freezing frozen food at about minus 18 degrees Celsius. The freezer compartment 3 is associated with a first evaporator 7, which is arranged behind a freezer compartment rear wall 8. The freezer compartment 3 is open

Freezer door leaf 9 accessible. To open, the freezer compartment door leaf 9 has a first handle 10. The cooling space 4 is generally used for frost-free cooling of refrigerated goods, preferably at temperatures between plus 4 and plus 8 degrees Celsius. However, the refrigerator 4 may also be designed as a zero-degree compartment, in particular for keeping fresh fruits or vegetables or include such. The cooling space 4 has a rear wall 11, behind which a second evaporator 12 is arranged. The second evaporator 12 is used for cooling the cooling space 4. The cooling space 4 is accessible when the refrigerator door leaf 13 is open. To open the refrigerator door leaf 13 has a second handle 14.

A single evaporator, or the first evaporator 7 and the second evaporator 12, or any number of evaporators may be connected to the compressor 5. The compressor 5 is from the rear, i. behind the rear wall 11 of the refrigeration device 1, inserted into a machine room 15 of the housing 16.

On the outer shell 6, a display and control unit 17 is arranged, by means of which the refrigerant cycle system can be adjusted and at the one actual and / or

Target temperature of the freezer compartment 3 and / or the refrigerator 4 can be read.

Figure 2 shows a perspective partially transparent view of the household refrigerator 18 with inner container 19, 20 and outer shell 21. The inner container 19, 20 may be thermoformed from a plastic. To form the outer shell 21, shuttering parts, such as side wall parts, rear wall, Ausstopfteile and the like may be attached from the outside. As shuttering parts, for example, cardboard parts, plastic parts or

Metal sheet parts serve. The inner container 19, 20 and the outer shell 21 are spaced from each other, so that between inner container 19, 20 and outer shell 21 a

Gap 22 is formed. For thermal insulation of the interior of the container 19, 20 formed coolable interior, an insulating foam is injected into the intermediate space 22. In the production of the household refrigerating appliance 1, 18, one or more electrical lines are first preassembled on the outer surface of the inner container 2, 19, 20 of the household refrigerating appliance 1, 18. The electrical line may be an electrical signal or control line, the display and control unit 17 with a Control means for controlling the refrigerant circuit system connects. The line may be an electrical supply line of a lighting device or the compressor 5. For pre-assembly of the at least one electrical line are first attached to the outer surface of the inner container 2, 19, 20 at predetermined positions holder with which subsequently the electrical line is connected. Subsequently, the outer shell 6, 21 is mounted and the insulating foam is injected.

FIG. 3 shows a cable preassembly on the inner container 23 of the household refrigerating appliance. On the outer surface 24 of the inner container 23 are first holder 25, attached. The holders 25 may be pins or connectors. The holder 25 may consist of a plastic. The holders 25 have a foot portion 26, with which they are connected to the outer surface 24 of the inner container 23, a head portion 27 and a shaft portion 28. The head portion 27 may be tapered, with a widening in the direction of the foot portion 26 diameter. This facilitates attachment of the cable 29. In addition, the head portion 27 allows a grip of the holder 25 in particular during the preparation of the connection to the inner container 23. The foot portion 26 may have an enlarged diameter. In order for a production of the connection to the inner container 23 is facilitated and the load capacity of the compound can be increased. In addition, the foot portion 26 may serve as a spacer for the conduit from the outer surface 24 of the inner container 23. The shank region 28 may have a reduced diameter compared to the maximum diameter of the head region 27. This can be a

Undercut contour may be formed, which allows a fixation of the attached cable 29. The holders 25 may be at predetermined positions on the outer

Surface 24 of the inner container 23 are attached. The holder 25 can with the outer surface 24 of the inner container 23 by means

Friction welding be connected. The holders 25 are moved with their foot region 26 relative to the outer surface 24 of the inner container 23, wherein the holder 25 and the outer surface 24 of the inner container 23 touch the contact surfaces. The resulting friction causes heating and plasticization of the material. At the end of the rubbing operation, the holders 25 are positioned on the outer surface 24 of the inner container 23 and an increased pressure is exerted. The Friction welding method, for example, a spin welding method, a

Ultrasonic welding or friction stir welding. Alternatively, the holders 25 may also be adhesively bonded to the outer surface 24 of the inner container 23.

The cable 29 may be a flat electrical cable. In the present case, the cable 29 has four electrical conductors 30. The cable may also have a different number of conductors, for example one, two, three or more than four. The cable 29 has a plurality of holes 31. The holes 31 may be arranged in a conductor-free region 32 of the cable 29. The conductor-free region 32 may be arranged centrally in the width direction of the cable. The holes 31 may be evenly spaced in the cable longitudinal direction. The diameter of the holes 31 may be slightly smaller than the maximum diameter of the head portion 27 of the holder 25. The diameter of the holes 31 may correspond at least approximately to the diameter of the shaft region 28.

The cable 29 can be so after attaching the holder 25 with its holes 31 positively connected to the holders 25 by the cable 29 is pushed with its holes 31 on the holder 25 so far over the head portion 27 of the holder 25 until the cable 29 in the shaft portion 28 of the holder 25 is arranged. In this case, not every hole 31 a holder 25 must be assigned. It can be used with a default provided with holes 31 cable. The number and arrangement of the holder 25 used to attach the cable 29 to the outer surface 24 of the inner container 23 may vary as needed.

The attachment of the holder 25 to the outer surface 24 of the inner container 23 and / or the attachment of the cable 29 to the holders 25 may be partially or fully automated.

Claims

1. Refrigeration appliance, in particular household refrigeration appliance (1, 18), comprising an inner container (2, 19, 20, 23) which defines a coolable interior (3, 4) for refrigerated goods and which has at least one container wall with an outer surface (24) at least two electrical components and an electrical lead (29) connecting the electrical components and guided along the outer surface (24) of the at least one container wall, characterized in that the outer surface (24) comprises at least one holder (25), where the electrical line (29) is fixed.

2. Refrigerating appliance (1, 18) according to claim 1, characterized in that the outer

Surface (24) has at least one holder (25) on which the electrical line (29) is formed in a space (22) formed by the outer surface (24) of the inner container (2, 19, 20, 23) and an outer shell (21) ) is kept prefixed before foaming the gap (22) with a heat insulating material.

3. Refrigerating appliance (1, 18) according to claim 1 or 2, characterized in that the

Inner container (2, 19, 20, 23) and the at least one holder (25) made of plastic and are interconnected.

4. Refrigerating appliance (1, 18) according to claim 3, characterized in that the at least one holder (25) by friction welding, ultrasonic welding, gluing or

direct molding with the inner container (2, 19, 20, 23) is connected.

5. Refrigerating appliance (1, 18) according to one of claims 1 to 4, characterized in that a plurality, in particular at equal intervals from each other arranged holder (25) for fixing a single electrical line (29) to the inner container (2, 19, 20 , 23) are connected.

6. Refrigerating appliance (1, 18) according to one of claims 1 to 5, characterized in that the at least one holder (25) as one of the outer surface (24) of the Container wall is formed outwardly projecting pin on which the electrical line (29) by means of a connected to the electrical line (29), in particular separately mounted or integrally formed tab is attached.

7. Refrigerating appliance (1, 18) according to claim 6, characterized in that the electrical line (29) has a plurality of tabs, which in particular uniformly spaced passages, circular openings, perforations or

Perforationslöchern, in particular in an insulation of the electrical line (29) are formed.

8. Refrigerating appliance (1, 18) according to claim 7, characterized in that the electrical line (29) is a multi-core, multi-perforated flat cable.

9. Refrigerating appliance (1, 18) according to one of claims 6 to 8, characterized in that the electrical line (29) one or more passages, circular openings,

Holes or perforation holes with respective receiving connection contour (31) which is formed, the electrical line (29) on a

Undercut portion of the holder (25) to lock.

10. Refrigerating appliance (1, 18) according to one of claims 6 to 9, characterized in that the at least one projecting pin has a head (27) and a shank (28), which is used to form an undercut for locking the tab,

in particular of the passage, the circular opening, the perforation or the

Perforationslochs the electrical line (29), with respect to the head (27) reduced cross-section, in particular reduced circular cross section.