WO2011047851A1

WO2011047851A1 - Housing frame of a temperature-control apparatus and temperature-control apparatus comprising said housing frame

Info

Publication number: WO2011047851A1
Application number: PCT/EP2010/006419
Authority: WO
Inventors: Thomas Schettler; Thomas Lanzl; Jörg Goldstein
Original assignee: Rehau Ag + Co
Priority date: 2009-10-22
Filing date: 2010-10-20
Publication date: 2011-04-28
Also published as: TR201908475T4; DE202009014319U1; EP2490576A1; PL2490576T3; EP2490576B1

Abstract

The present invention relates to a housing frame (2) of a temperature-control apparatus (1, 64), wherein a temperature T1 prevails outside the temperature-control apparatus (1, 64) and a temperature T2 prevails within the temperature-control apparatus (1, 64), wherein at least one of the edges of the housing frame is formed by a frame profile (5; 68) which comprises a base profile (13) composed of plastic and at least one pair of metal elements (14, 15; 34; 36 to 39) which are arranged in pairs parallel to one another and which are in the form of reinforcing strips and, over their entire abutment area on the base profile (13), are cohesively connected to said base profile, wherein the cross section of the frame profile has an axis (62) of symmetry, the isotherm for the temperature (T1 - T2)/2 at the point of intersection with the axis (62) of symmetry is arranged on said axis of symmetry orthogonally, and the isotherm for the temperature (T1 - T2)/2 does not exhibit a point of intersection with the metal elements (14, 15; 34; 36 to 39); and/or at least one of the posts (10, 69) of the housing frame (2) is formed by a post profile (70) which comprises a base profile (73) composed of plastic and at least one pair of metal elements (78, 79, 82, 83) which are arranged in pairs parallel to one another and which are in the form of reinforcing strips and, over their entire abutment area on the base profile (73), are cohesively connected to said base profile, wherein the cross section of the frame profile has an axis (62) of symmetry, the isotherm for the temperature (T1-T2)/2 at the point of intersection with the axis (62) of symmetry is arranged on said axis of symmetry orthogonally, and the isotherm for the temperature (T1-T2)/2 does not exhibit a point of intersection with the metal elements (78, 79, 82, 83).

Description

Housing a tempering and this comprehensive tempering

The invention relates to a housing frame of a tempering device, in particular an air conditioner or freezer, wherein at least one of the edges of the housing frame is formed by a frame profile and / or at least one of the posts of the housing frame is formed by a post profile, each comprising a base profile made of plastic , Furthermore, the invention relates to a tempering device comprising such a housing frame. Frame profiles of the type mentioned above can be used in particular for the construction of housings of air conditioners or freezers and for the construction of door or window frames, in particular of freezers. Known such frame profiles are usually made of aluminum. From EP 1 801 525 A2 frame profiles are also known in which metal elements are coated with plastic materials. When used as a door profile, DE 10 2005 059 145 A1 also discloses a frame profile with a base profile made of plastic, a heat-conducting foil and a decorative metal foil, in particular made of metal.

It is an object of the present invention to develop a housing frame of the type mentioned above with a base profile made of plastic such that its insulation properties are improved while maintaining high stability. The case frame should have a simple structure and be inexpensive to produce.

This object is achieved according to the invention by a housing frame of a tempering device according to claim 1.

According to the invention, it has been recognized that a frame profile and / or a post profile with at least one pair of metal elements arranged in pairs parallel to each other, which are designed as reinforcing bands and are cohesively connected to a base profile made of plastic over their entire contact surface, despite a base profile made of plastic, a flexural rigidity opposite to a bend perpendicular to the profile Longitudinal axis can meet the demanding requirements and is often comparable with the bending stiffness of a total metallic frame profile. According to the invention, the cross section of the frame profile has an axis of symmetry and the isotherm corresponding to the temperature medium between the exterior and the interior of the tempering device intersects this axis of symmetry at right angles, this isotherm having no intersection with the metal elements. In this way, it is ensured that the housing frame according to the invention has an advantageously low thermal conductivity compared to an overall metallic housing frame or the housing frame described in EP 1 801 525 A2. Compared to the frame profile according to DE 10 2005 059 145 A1, the frame profile, since the metal elements used serve not only as decorative or Wärmeleitfolien, but as Armierungsbänder, again a significantly improved stability. Overall, the stability of the frame profile is improved in such a way that the frame profile according to the invention can be used with the plastic base profile where previously exclusively metal frame profiles were used. In comparison to a frame profile which is not reinforced with the at least one reinforcing strip according to the invention, the bending stiffness is increased by, for example, a factor of 2, wherein increases of, for example, a factor of 5 or even 10 are possible. Due to the plastic base profile also results in an improved sound insulation.

Accordingly, the present invention relates to a housing frame of a tempering device, outside of the temperature control device is a temperature T1 and within the temperature control device is a temperature T2, wherein at least one of the edges of the housing frame is formed by a frame profile, which is a basic profile of plastic and at least one pair Metal elements arranged in pairs parallel to each other, which are formed as Armierungsbänder and are connected over their entire contact surface on the base profile with this cohesively, wherein the cross section of the frame profile has an axis of symmetry, the isotherm for the temperature (T1 - T2) / 2 at the intersection with the The axis of symmetry is arranged orthogonally thereon and the isotherm for the temperature (T1 - T2) / 2 has no point of intersection with the metal elements; and / or at least one of the posts of the housing frame is formed by a post profile comprising a base profile made of plastic and at least one pair of metal elements arranged in pairs parallel to each other, which are formed as Armierungsbänder and are connected over their entire contact surface on the base profile with this cohesively, wherein the cross section of the frame profile is a symmetry Axis, the isotherm for the temperature (T1 - T2) / 2 is arranged at the intersection with the axis of symmetry on this orthogonal and the isotherm for the temperature (T1 - T2) / 2 has no point of intersection with the metal elements. Furthermore, the present invention relates to a temperature control device, in particular a climate control device or a freezer, which comprises a housing frame according to the invention.

In preferred embodiments, all edges of the housing frame from such frame profiles and / or all posts of the housing frame are formed from such post profiles.

It may prove advantageous if the metal element has an angled cross-section transverse to the profile extension. Such a cross section of the metal element has been found to be particularly suitable for improving the flexural rigidity, in particular when the flexural rigidity about two axes perpendicular to one another and perpendicular to the longitudinal axis of the profile is considered.

It may also be advantageous if the metal element is designed as an insert in the basic profile designed as an extrudate. As a result, the appearance of the respective profile is hardly and the thermal properties further improved.

But it can also be useful if the metal element is placed outside on the basic profile. Such a profile is easy to produce. The cohesive connection according to the invention of the base profile applied externally to the metal element is obtained, for example, by using an adhesion promoter or an adhesive.

It may also be helpful if the frame profile and / or the post profile have at least one hollow chamber, wherein at least one of the metal elements defines one of the hollow chamber walls. This increases the flexural rigidity while at the same time saving material.

As an alternative to an externally placed metal element, the metal element can also be advantageously used in a hollow chamber. Depending on the requirements on the heat conduction cross section or on certain stability parameters of the frame and / or post profile, a metal element inserted in a hollow chamber can be used. It may also be advantageous if the two metal elements are designed angled in cross section, wherein one of the metal elements delimits two hollow chamber walls of the at least one hollow chamber and the other of the two metal elements in the region of the two hollow chamber walls opposite corner of the hollow chamber is arranged. In this context, it is particularly preferred if the two hollow chamber walls which form the opposite corner continue through a point of intersection of the two hollow chamber walls. By such a profile cross section a particularly high bending stiffness is ensured.

It can also prove to be advantageous if the post profile has at least two hollow chambers, wherein in opposite hollow chamber walls each have a pair of metal elements are arranged. As a result, a high stability of the housing frame in the area of the posts is achieved, whereby the thermal properties of the housing are not impaired.

In order to achieve weight savings in the case frame, it has proven to be advantageous if the frame profile and / or the post profile has at least one hollow chamber which is not limited by metal elements.

It may also be advantageous if the frame profile and / or the post profile have a U-shaped cross-sectional contour. As a result, for example, further functional components can be introduced between side arms of the frame profile formed by the U-shape.

In practice, it may prove to be advantageous if the metal elements have a thickness perpendicular to the longitudinal extent of the metal elements of 0.1 mm to 1, 5 mm, preferably 0.3 mm to 0.8 mm and particularly preferably of about 0.5 mm to 0.6 mm. It may also be advantageous if the metal elements perpendicular to the longitudinal extent of the frame profile has a width in the range of 10 mm to 100 mm, preferably of

10 mm to 60 mm and more preferably 10 to 20 mm. Such dimensions have proven to be a good compromise between increasing the stability of the frame. Post profiles on the one hand and a sparing use of the metal element material on the other exposed. Finally, it can also be helpful if steel missions at least partially penetrate the basic profile. In particularly preferred embodiments, the steel inserts penetrate the basic profile completely, ie over its entire length. Such steel inserts passing through the base profile increase the intimate connection of the metal elements with the basic profile by means of a positive engagement in addition to the material connection.

Embodiments of the invention are explained below with reference to the drawings. Show:

1 shows an air conditioning unit with a housing frame constructed from frame profiles, wherein the housing frames between the frame profiles have been replaced by additional surface support elements;

2 is a schematic exploded view to illustrate the structure of

Case frame in a corner area;

3 shows an end-side, cross-sectional view of one of the frame profiles for the construction of the housing frame in an enlarged view.

Fig. 4 in a similar to Figure 3 representation of another embodiment of a frame profile for the construction of the housing frame. Fig. 5 in a similar to Figure 3 representation further embodiment of a frame profiles for the construction of the housing frame.

6 perspectively a section of a further embodiment of a frame profile for the construction of the housing frame;

Fig. 7 schematically shows a usage side view of a three access door front of a supermarket freezer;

Fig. 8 is a sectional view taken along line IX-IX in Fig. 7 in an enlarged view, wherein only a housing pillar profile of the freezer is shown. An air conditioner 1 has a housing frame 2, which has support elements 3 in the floor area, which carry components of an air conditioning unit 4. The housing frame 2 is constructed from correspondingly assembled frame profiles 5.

Fig. 2 shows schematically the structure of the housing frame 2 in a corner region of the housing. In this corner region, three of the frame profiles 5, which define corresponding housing edges, converge toward one another. The frame profiles 5 all have the same profile cross-section. These include a square profile hollow chamber 6, in the Verbindungsstut- zen 7 of a corner connector 8 can be inserted.

The frame profiles 5 limit, possibly with additional post sections 9, rectangular fields for inserting surface support elements 10 for closing the housing of the air conditioner 1. The surface support elements 10 have circumferential grooves 11, the corresponding longitudinal ribs 12 of the frame profiles 5 engage behind in the assembled state. In this way, a secure hold of the surface support elements 10 is ensured on the housing frame 2.

Fig. 3 shows in detail a cross-sectional profile of an embodiment of the frame profile 5. This has a base profile 13 made of plastic. The base profile 13 is extruded. In addition, the frame profile 5 has two metal elements 14, 15, which complement a frame profile cross section of the frame profile 5. The metal elements 14, 15 are each placed outside on the base profile 13.

The metal elements 14, 15 are integrally connected to the base profile 13 over their entire contact surface. In this case, a bonding agent or an adhesive can be used. The metal elements 14, 15 can be connected in the extrusion of the base profile 13 with this.

In addition to the square hollow chamber 6, the base profile 13 also has two further profile hollow chambers 16, 17. In FIG. 3, the profile hollow chamber 16 is to the right of the profile hollow chamber 6 and the profile hollow chamber 17 is below the profile hollow chamber 6 arranged. The metal elements 14, 15 are designed as Armierungsbänder, so increase the bending stiffness of the frame profile 5, so the resistance, the frame profile 5 facing a laying around an axis perpendicular to the profile longitudinal axis. The metal element 14 is designed angled in cross section. In a 90 ° angle region 18, the metal element 14 is curved without edges around an outer edge 19 of the hollow chamber 6. The metal element 14 defines two hollow chamber walls 20, 21 of the hollow chamber 6. In addition, the metal element 14 also engages over the two hollow chamber walls 22, 23 of the hollow chambers 16, 17 adjoining the hollow chamber 6 to the right and downwards Metal element 14 are edge-free by 90 ° around the hollow chambers 16, 17 formed outer edges 26, 27 of the hollow chambers 16, 17 around.

The second metal element 15 of the frame profile 5 according to FIG. 5 is also angled, wherein the metal element 15 is angled in a 90 ° angle region 28 with an angle of curvature smaller than the 90 ° angle region 18.

The metal element 15 is arranged in the region of a corner 29 opposite the two hollow chamber walls 20, 21 which are delimited by the metal element 14. Two hollow chamber walls 30, 31 of the square hollow chamber 6, which form this corner 29, continue through a crossing point of the two hollow chamber walls 30, 31. The metal element 15 is inserted into continued sections 32, 33 of the two hollow chamber walls 30, 31 such that the two angled metal elements 14, 15 open towards the same side, namely to the bottom right in FIG.

The two continued sections 32, 33 each delimit with a section narrow sides of the hollow cavities 16, 17 which are of rectangular design. The metal element 15 therefore delimits the hollow chamber walls of the hollow chambers 16, 17 formed by the continued sections 32, 33.

Fig. 4 shows a further embodiment of the frame profile 5. Components which correspond to those which have been explained above with reference to Figures 1 to 3 bear the same reference numerals and will not be discussed again in detail. Instead of the metal element 14, the frame profile 5 according to FIG. 4 also has an angled metal element 34. This is inserted inside the hollow chamber 6. The metal element 34 follows in a 90 ° angle region 35 of the inner corner of the hollow chamber 6, which forms the outer edge 19 to the outside. Here, the 90 ° angle region 35 of the metal element 34 has a radius of curvature which is smaller than the radius of curvature of the 90 ° angle region 18 of the metal element 14 of the frame profile 5 of FIG. 3, but at the same time larger than the 90 ° angle region 28 of the metal element 15. The two profile legs of the metal element 34 cover about three quarters of the inner hollow chamber walls 20, 21 of the hollow chamber. 6

4, the two angled metal elements 34 and 15 open to the same side, namely in Fig. 4 to the bottom right.

In cross-section, the post profile 5 has an axis of symmetry 62 which extends diagonally through the profile hollow chamber 6. The isotherm corresponding to the temperature means between the exterior and the interior of the tempering device intersects this axis of symmetry 62 at right angles, this isotherm having no intersection with the metal elements 15, 34. Fig. 5 shows a further embodiment of the frame profile 5. Components which correspond to those which have been explained above with reference to Figs. 1 to 4 bear the same reference numerals and will not be discussed again in detail.

The basic profile 13 of the frame profile 5 according to FIG. 5 also has three profile hollow chambers 6, 16 and 17, which are arranged according to the arrangement in the frame profiles 5 according to FIGS. 3 and 4. Compared with the hollow chambers 16, 17 of the embodiments according to FIGS. 3 and 4, the hollow chambers 16, 17 of the embodiment of FIG. 5 in relation to the cross section of the square profile hollow chamber 6 are made larger. Instead of the metal element 14 in the embodiment of FIG. 3 and the metal element 34 in the embodiment of FIG. 4, the frame profile 5 in the embodiment of FIG. 5 has two metal elements 36, 37 in the form of metal bands. These have in the embodiment of Fig. 5 has a width of 32 mm and a thickness of 0.75 mm. The metal elements 36, 37 are made of steel. The metal element 36 is designed as a depositor in the continuous hollow chamber walls 20, 23 of the base section 13. The metal element 37 is designed as a depositor in the continuous hollow chamber walls 21, 22 of the base section 13. The cross sections of the metal elements 36, 37 are thus completely surrounded by the plastic material of the base profile 13 in the frame profile 5 according to FIG. 5. The outer edge 19 is metal-free. The metal elements 36, 37 cover about 90% of the hollow chamber walls 20, 21 and about 20% of the hollow chamber walls 22, 23.

Instead of the metal element 15 in the embodiments according to FIGS. 3 and 4, the frame profile 5 according to FIG. 5 has two further metal elements 38, 39, which are also designed as steel strips with a width of 32 mm and a thickness of 0.75 mm are. The metal element 38 is designed as a depositor in the continued section 32 of the hollow chamber wall 30. The metal element 39 is designed as a depositor in the continued section 33 of the hollow chamber wall 31. The corner 29 is metal element-free. The metal elements 38, 39 extend along virtually the entire profile extension of the continued sections 32, 33 of the base profile 13. The metal elements 38, 39 are completely surrounded in cross-section by the plastic material of the continued sections 32, 33.

To further increase the flexural rigidity, outer, metal-element-free, longitudinal hollow chamber walls 40, 41 of the base profile 13 of the frame profile 5 according to FIG. 5 each have three outer molded profile ribs 42.

Fig. 6 shows in perspective a broken section of a frame profile 5, which is similar to the frame profile 5 of FIG. 4. Components which correspond to those which have already been explained above with reference to FIGS. 1 to 6 bear the same reference numbers and will not be discussed again in detail. Shown in Fig. 6, only one half of the along the diagonal symmetry plane in turn symmetrically designed frame profile 5. In contrast to the metal element 34 of FIG. 4, the legs in the metal element 34 of the embodiment of FIG. 6 to the opposite hollow chamber walls 30 and, symmetrically thereto, 31, the square profile hollow chamber wall 6 out. In addition, in the embodiment according to FIG. 6, the metal element 15 has steel inserts 63 which completely penetrate the material of the base profile 13 in this way and in addition to the material connection of the metal element 15 to the continued sections 32, 33 of the base profile 13, also for positive locking of the metal element 15 on the base profile 13 provide. Fig. 7 shows a door-side view of a supermarket freezer 64. This has a total of three juxtaposed glass access doors 65, 66 and 67. The glass access doors 65 to 67 each have a door frame with exterior door frame profiles 68 and posts Door frame profiles 69. The access doors 65 to 67 are struck on a housing frame of the freezer 64, which is arranged in the view of FIG. 8 behind the door frame. The housing frame of the freezer 64 has, similar to the housing frame 2 of the air conditioner 1 according to FIGS. 1 to 7, outer frame profiles on the type of frame profiles 5 and post frame profiles 70, one of which is shown in Fig. 8 in cross section. In Fig. 8 below the post frame profile 70 is a door side 71 of the frame profile 70. There are two adjacent access doors, such as the access doors 65 and 66, posted on the frame profile 70. In the figure 8 above the frame profile 70 is a housing inside 72 of the freezer 64th

The frame profile 70 has a base profile 73 made of plastic. The base profile 73 has a U-shaped cross-sectional contour. A base of the U is formed by a rectangular profile hollow chamber 74 lying in FIG. 8. The hollow chamber 74 is not bounded by metal elements. The two lateral legs of the U are formed by two, in FIG. 9 standing arranged, also rectangular profile hollow chambers 75, 76th

Down the adjacent hollow chambers 75, 74 and 76 are limited by a common hollow chamber wall 77.

The base profile 73 is made of polyvinyl chloride (PVC). Alternatively, the base profile 73 may be made of polyamide (PA), in particular of glass fiber reinforced polyamide. There, where the hollow chamber wall 77, the two lateral hollow chambers 75, 76 at their

Limited narrow sides, the frame profile 70 has two metal elements 78, 79, which are designed as steel strips with a width of 16.5 mm and a thickness of 0.5 mm. The metal elements 78, 79 are designed as inserts in the basic profile 73 designed as an extrudate. The hollow chamber walls 77 opposite hollow chamber walls 80, 81 of the hollow chambers 75, 76 have metal elements 82, 83, which are also used as steel reinforcing 16.5 mm thick and 0.5 mm thick. The hollow chambers 75, 76 are thus each bounded by metal elements 78, 82 and 79, 83 lying opposite one another. Due to the U-shaped cross-sectional contour of the frame profile 70 results between the two upper portions of the hollow chambers 75, 76 a limited to three sides receiving space 84, which can be used to hold functional components of the freezer 64, in particular for receiving bulbs. The basic structure of the outer door frame profiles 68 is from the

DE 10 2005 059 145 A1. The outer door frame profile 68 has an extruded basic profile made of plastic. This forms together with a plastic glass strip a fold with a rabbet base for receiving a glass element, such as the glass access door. The basic profile has another hollow chamber containing functional components. In addition, metal elements comparable to the metal element 14 of the embodiment of the frame profile 5 of Figure 3, a metal element completely cover an outer corner of the plastic base profile of the outer door frame profiles. Additionally, the exterior door frame profile 68 may include another metal element disposed at the bottom of the rebate base.

- Claims -

Claims

claims

Housing frame (2) of a temperature control device (1, 64), outside of the temperature control device (1, 64) has a temperature T1 and within the temperature control device (1, 64) is a temperature T2, wherein

at least one of the edges of the housing frame is formed by a frame profile (5; 68) comprising a base profile (13) made of plastic and at least one pair of metal elements (14, 15; 34; 36 to 39) arranged in pairs parallel to one another, which serve as reinforcement bands are formed and connected over their entire contact surface on the base profile (13) with this cohesively, wherein the cross section of the frame profile has an axis of symmetry (62), the isotherm for the temperature (T1 - T2) / 2 at the intersection with the axis of symmetry (62) arranged orthogonally thereon and the isotherm for the temperature (T1-T2) / 2 has no point of intersection with the metal elements (14, 15; 34; 36-39);

and or

at least one of the posts (69) of the housing frame (2) is formed by a post profile (9, 70) comprising a base profile (73) made of plastic and at least one pair of metal elements (78, 79, 82, 83) arranged in pairs , which are formed as Armierungsbänder and over their entire contact surface on the base profile (73) are connected to this materially, wherein the cross section of the frame profile has an axis of symmetry (62), the isotherm for the temperature (T1 - T2) / 2 in the intersection with the Symmetry axis (62) is arranged orthogonal on this and the isotherm for the temperature (T1 - T2) / 2 has no intersection with the metal elements (78, 79, 82, 83).

Housing frame (2) according to claim 1, characterized in that the metal elements (36 to 39; 78, 79, 82, 83) are designed as inserts in the basic profile (13; 73) designed as an extrudate.

Housing frame (2) according to claim 1, characterized in that the metal elements (14, 15) are placed externally on the base profile (13).

4. housing frame (2) according to one of claims 1 to 3, characterized in that the frame profile (5, 68) and / or the post profile (9, 70) at least one hollow chamber (6, 16, 17, 74 to 76) wherein at least one of the metal elements (14, 15; 34; 36-39; 78, 79, 82, 83) defines one of the hollow chamber walls (20, 21).

5. housing frame (2) according to claim 4, characterized in that the metal element (34) is inserted inside the at least one hollow chamber (6).

6. housing frame (2) according to one of claims 1 to 5, characterized in that the two metal elements (14, 15, 34) are executed angled in cross section, wherein one of the metal elements (14, 34) has two hollow chamber walls (20, 21) the at least one hollow chamber (6) limited and the other of the two metal elements (15) in the region of the two hollow chamber walls (20, 21) opposite corner (29) of the hollow chamber (6) is arranged.

7. housing frame (2) according to claim 6, characterized in that the two hollow chamber walls (30, 31) forming the opposite corner (29) continue through a crossing point of the two hollow chamber walls (30, 31).

8. housing frame (2) according to one of claims 1 to 7, characterized in that the post profile (9, 70) at least two hollow chambers (74 to 76), wherein in opposite hollow chamber walls (77, 80; 77, 81) each one Pair of metal elements (78, 82, 79, 83) are arranged.

9. housing frame (2) according to one of claims 1 to 8, characterized in that the frame profile (5, 68) and / or the post profile (9, 70) has at least one hollow chamber (74) which is not limited by metal elements.

10. housing frame (2) according to one of claims 1 to 9, characterized in that the frame profile (5, 68) and / or the post profile (9, 70) have a U-shaped cross-sectional contour.

11. housing frame (2) according to one of claims 1 to 10, characterized in that the metal elements have a thickness perpendicular to the longitudinal extent of the Metallelemen- te from 0.1 mm to 1, 5 mm, preferably 0.3 mm to 0.8 mm and more preferably from about 0.5 mm to 0.6 mm.

Housing frame (2) according to one of claims 1 to 11, characterized in that the metal elements perpendicular to the longitudinal extent of the frame profile has a width in the range of 10 mm to 100 mm, preferably 10 mm to 60 mm and particularly preferably 10 to 20 mm.

Housing frame (2) according to one of claims 1 to 12, characterized in that steel inserts (63) selectively penetrate the base profile (3, 73) at least in sections and in particular completely.

Temperature control device, comprising a housing frame (2) according to one of claims 1 to 13.