CN220411178U - Packaging structure, packaging assembly and equipment suite - Google Patents

Abstract

The application discloses packaging structure, package assembly and equipment external member belongs to the technical field of packing to solve the technical problem that the top cap of current packing receives when strikeed and easily transmits energy to the top of electrical apparatus. The packaging structure comprises: the top cover is arranged on the top wall of the article to be packaged and is provided with a plurality of first topological units, and the first topological units are provided with first modulation holes; the side plate is coated on the side wall of the article to be packaged and is provided with a plurality of second topological units, and the second topological units are provided with second modulation holes; the direction of first modulation hole is along first direction, and the direction of second modulation hole is along the second direction, and first direction and second direction are the contained angle setting, and curb plate and top cap form curb plate-top cap-continuous three topology looks structure of curb plate from one side to the opposite side, and when the top cap received the impact force along the direction of top cap and curb plate connection edge, impact elastic wave did not have the reflection and propagated forward along two edges of curb plate and top cap, reduced the quantity that the elastic wave entered into the middle part of top cap, and then effectively avoid impact force to cause the middle weak position of top cap to take place buckling deformation.

Description

Packaging structure, packaging assembly and equipment suite

Technical Field

The application belongs to the technical field of packaging, and particularly relates to a packaging structure, a packaging assembly and an equipment suite.

Background

The internal parts of the electrical appliance are generally more precise, so that the electrical appliance just produced is often convenient to transport by adding a certain external package after leaving the factory, and the general electrical appliance is packaged by foam, thereby avoiding scratches or damage to the internal parts on the surface of the electrical appliance due to collision in the transportation process.

In the related art, when the package of electrical apparatus carries out inclined plane impact test, impact energy can pass through the top cap foam and transmit the product top, because the structural strength at top edge position of electrical apparatus is stronger, but the middle part is weaker, so when impact energy transmitted the top of electrical apparatus, the top middle part of electrical apparatus takes place buckling deformation easily and damages.

Disclosure of Invention

The application aims at solving the technical problem that the packaging top cover is easy to transfer energy to the top of an electric appliance when being impacted to a certain extent. To this end, the present application provides a packaging structure, a packaging assembly, and a kit of devices.

In a first aspect, an embodiment of the present application provides a packaging structure for including an article to be packaged, including:

the top cover is arranged on the top wall of the article to be packaged and is provided with a plurality of first topological units, and the first topological units are provided with first modulation holes;

the side plate is coated on the side wall of the article to be packaged and is provided with a plurality of second topological units, and the second topological units are provided with second modulation holes;

the direction of the first modulation hole is along a first direction, the direction of the second modulation hole is along a second direction, and the first direction and the second direction form an included angle.

The direction of the first modulation hole on the top cover is different from the direction of the second modulation hole on the side plates at the two sides, namely, the directions of the second modulation holes on the side plates at the two sides are opposite, so that the top cover and the side plates form different topological valley structures, the side plates and the top cover form three continuous topological structures of the side plates, the top cover and the side plates from one side to the other side, when the top cover receives impact force along the direction of the connecting edge of the top cover and the side plates, impact elastic waves do not propagate forward along the two edges of the side plates and the top cover in a reflection mode, impact force acting on the top cover is buffered, the amount of the elastic waves entering the middle part of the top cover is reduced, and buckling deformation of the weak position in the middle of the top cover caused by the impact force is effectively avoided.

In some embodiments, the first modulation aperture is directed opposite to the second modulation aperture, and the first direction and the second direction are disposed opposite.

In some embodiments, the first modulation aperture and the second modulation aperture are both triangular.

In some embodiments, the first topology unit is hexagonal, and three corners of the first modulation hole are respectively corresponding to three sides of the first topology unit;

and/or

The second topological unit is hexagonal, and three angles of the second modulation hole are respectively arranged corresponding to three sides of the second topological unit.

In some embodiments, the first topological unit is hexagonal, and three corners of the first modulation hole are respectively corresponding to three corners of the first topological unit;

and/or

The second topological unit is hexagonal, and three angles of the second modulation hole are respectively arranged corresponding to three angles of the second topological unit.

In some embodiments, the two side plates are arranged oppositely, and the two side plates are distributed and connected with two ends of the top cover.

In some embodiments, the packaging structure further comprises two connecting plates, wherein the two connecting plates are oppositely arranged on the top cover, are respectively connected with the two side plates, and are coated on the side wall of the article to be packaged.

In some embodiments, the top cover is quadrilateral, and the two connecting plates and the two side plates are respectively connected with one side of the top cover.

In some embodiments, the packaging structure further comprises a reinforcement connecting the side panel and the connecting panel to each other.

In some embodiments, the packaging structure further comprises a base, wherein the base is arranged below the object to be packaged and is used for supporting the object to be packaged.

In a second aspect, an embodiment of the present application provides a package assembly for packaging a to-be-packaged article, including packing carton and foretell packaging structure, packaging structure sets up to wait to package the top of article, the packing carton packing is in wait to package the surface of article.

In a third aspect, an embodiment of the present application provides a device kit, including an article to be packaged and a packaging assembly as described above.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the structure of a package structure according to an embodiment of the present application;

FIG. 2 shows a schematic structural view of a packaging structure according to another embodiment of the present application;

FIG. 3 shows a schematic diagram of a single topology unit in an embodiment of the present application;

fig. 4a is a schematic structural diagram of the angle θ= -30 ° of the modulation aperture in the topology unit;

fig. 4b is a schematic structural diagram of the angle θ=0° of the modulation aperture in the topology unit;

fig. 4c is a schematic structural diagram of the angle θ=30° of the modulation aperture in the topology unit;

FIG. 4d is a band corresponding to FIG. 4 a;

FIG. 4e is a band corresponding to FIG. 4 b;

FIG. 4f is a band corresponding to FIG. 4 c;

FIG. 4g is the intrinsic field and phase distribution at the K point;

FIG. 5 shows a schematic structural view of a packaging structure with a base according to another embodiment of the present application;

reference numerals: 100-packaging structure; 110-top cover; 111-a first topology unit; 112-a first modulation aperture; 120-side plates; 121-a second topology unit; 122-a second modulation aperture; 130-reinforcement; 140-base, 150-connecting plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The present application is described below with reference to specific embodiments in conjunction with the accompanying drawings:

in the related art, the top cover structure of the packaging structure of the clothes dryer or the washing machine has large thickness and high cost, if the thickness is reduced, the impact energy is transmitted to the top of the product through the top cover foam when the packaging is subjected to inclined plane impact experiments, and the top edge part of the product is stronger, but the middle part is weaker, so that when the impact energy is transmitted to the top of the product of the clothes dryer or the washing machine, the middle part of the top of the product is easy to be buckled, deformed and damaged.

A first aspect of the present application provides a packaging structure 100 for packaging articles to be packaged, such as clothes dryers or washing machines, see fig. 1 and 2, the packaging structure 100 comprising: a top cover 110 disposed on a top wall of the article to be packaged, and having a plurality of first topology units 111, the first topology units 111 having first modulation holes 112; the side plate 120 is coated on the side wall of the article to be packaged and is provided with a plurality of second topological units 121, and the second topological units 121 are provided with second modulation holes 122; the first modulation aperture 112 is directed along a first direction, and the second modulation aperture 122 is directed along a second direction, the first direction and the second direction being disposed at an angle.

The direction of the first modulation hole 112 on the top cover 110 is different from the direction of the second modulation hole 122 on the two side plates 120, namely, the second modulation holes 122 on the two side plates 120 face different directions, so that the top cover 110 and the side plates 120 form different topological valley structures, the side plates 120 and the top cover 110 form three continuous topological structures of the side plates 120, the top cover 110 and the side plates 110 from one side to the other side, when the top cover 110 receives impact force along the direction of the connecting edge of the top cover 110 and the side plates 120, the impact elastic wave does not spread forward along the two edges of the side plates 120 and the top cover 110 in a reflection way, the impact force acting on the top cover 110 is buffered, the amount of the elastic wave entering the middle part of the top cover 110 is reduced, and buckling deformation of the middle weak position of the top cover 110 caused by the impact force is effectively avoided.

The first modulation aperture 112 is directed opposite to the second modulation aperture 122. I.e. the first direction and the second direction are opposite.

It should be noted that the first direction and the second direction are opposite, that is, the included angle between the first direction and the second direction is between 135 degrees and 215 degrees, and both the first direction and the second direction are regarded as two opposite directions.

Referring to fig. 1 and fig. 2, the top cover 110 is a protection structure located at the top of an article to be packaged in the packaging structure 100, the top cover 110 covers the top of the article to be packaged, the bottom wall of the top cover 110 is attached to the top of the article to be packaged, the shape of the top cover 110 is matched with that of the top of the article to be packaged, in this embodiment, the top cover 110 is rectangular, the edge of the top cover 110 extends outwards to cover the top of the article to be packaged completely, so as to protect the article to be packaged, a containing groove matched with the top of the article to be packaged is formed in the bottom of the top cover 110, and when the top cover 110 protects the article to be packaged, the top of the article to be packaged and the containing groove at the bottom of the top cover 110 are embedded together to complete the installation of the top cover 110. The curb plate 120 sets up on the diapire of the border that top cap 110 extended for the article of waiting to pack, when top cap 110 is located the article of waiting to pack, curb plate 120 is located the side of the article of waiting to pack and with the lateral wall butt of taking the article of packing to protect the lateral wall of waiting to pack the article, curb plate 120 and top cap 110 integrated into one piece become the cuboid structure, and the roof of top cap 110 flushes with the roof of curb plate 120, and the holding tank can enclose through curb plate 120 and establish out, and when top cap 110 is installed on the article of waiting to pack, curb plate 120 and the lateral wall butt of waiting to pack the article. In the present embodiment, the top cover 110 and the side plates 120 may be made of foam material, and the equivalent material parameter ρ=30kg/m of foam ³ The elastic modulus e=4 MPa and poisson ratio μ=0.07, so as to protect the article to be packaged, and in other embodiments, other materials may be selected according to practical situations.

Referring to fig. 2 and 3, the top cover 110 is provided with a plurality of first topology units 111 for buffering impact force, the plurality of first topology units 111 are closely arranged on the top cover 110, first modulation holes 112 are formed in the first topology units 111 along the thickness direction of the top cover 110 to form a topology valley structure, the side plate 120 is provided with a plurality of second topology units 121 for buffering impact force, the plurality of second topology units 121 are closely arranged on the side plate 120, and second modulation holes 122 are formed in the second topology units 121 along the thickness direction of the side plate 120 to form a topology valley structure.

In some embodiments, the first topology unit 111 and the second topology unit 121 are hexagons, and the first modulation aperture 112 and the second modulation aperture 122 are triangles. In this embodiment, lattice constants of the hexagonal first topological unit 111 and the hexagonal second topological unit 121 may be 10cm, thicknesses of the top cover 110 and the side plates 120 may be 2cm, and the first modulation hole 112 and the second modulation hole 122 may be equilateral triangles with sides of 9cm, so as to form a single-cell topological structure.

Referring to fig. 4 a-4 g, θ represents the angle of the triangular pointing direction with the positive x-axis, the portion of fig. 4a is the angle θ= -30 ° of the modulation aperture in the topological unit, the portion of fig. 4b is θ=0°, and the portion of fig. 4c is θ=30°. Fig. 4d, 4e, 4f show the energy bands corresponding to the parts of fig. 4 a-4C, and fig. 4g shows the intrinsic field and phase distribution at the K point, wherein the system has C when the angle θ=0° of the scatterer _3v Symmetry, as shown in part b of fig. 4, according to the knowledge of group theory, the point group corresponding to the boundary corner point of the brillouin zone in the space has two-dimensional irreducible representation, so that a linear crossed dirac cone is formed at the point K and the point K', as shown in part e of fig. 4, and degenerate to form a dirac cone near the frequency 340 Hz.

On the other hand, when the rotation angle θ is not equal to 0 °, there are two conditions that can satisfy C ₃ Symmetry: θ= -30 ° (structure a in the figure) and θ=30° (structure B in the figure), and fig. 4d and fig. 4f show part of the dispersion characteristics of the cells and the band gap inversion characteristics corresponding to the transition from one configuration to another, and since the symmetry of the structure is broken, a complete forbidden band appears between the first and second band gaps, the frequency ranges from 309Hz to 351Hz, the topology properties corresponding to the two band gaps change despite the same scattering curves of the two configurations of the structure a and the structure B, and the transition of the topology properties of the two band gaps is called band gap inversion, as shown in part of fig. 4g, by describing the amplitude and phase of the mode at the K point, the inversion of the mode can be found.

The band gap inversion phenomenon is analogous to the valley hall effect, and further, the valley Chen Shu can be calculated to quantitatively describe the topological phase transition, integrating the Berry curvature in half the brillouin zone:

wherein Ω (k) is a Berry curvature, and the expression is:

where i is an imaginary unit, c.c. represents the complex conjugate,<·|·>represents the inner product, k= [ k ] _x ,k _y ]Is Bloch wave vector and omega _u And omega _v The natural frequencies of the corresponding feature vectors u and v are represented, the valley Chen Shu corresponding to the K point of the structure A and the structure B is + -1/2, the valley Chen Shu corresponding to the two structures is 1, and the topology protection edge mode appears at the interface of the two structures.

When the structure A and the structure B are spliced in the ABA mode along the direction, energy is gathered at the splicing position, the topological edge state has good regulation and robustness, that is, the energy can be transmitted forwards along the edge of the splicing position of the different topological valleys Xiang Jiegou (the structure A and the structure B), so that the direction of the first modulation holes 112 on the top cover 110 is opposite to the direction of the second modulation holes 122 on the side plates 120 on the two side plates 120, namely, the directions of the second modulation holes 122 on the two side plates 120 are opposite, so that the top cover 110 and the side plates 120 form different topological valley structures, the side plates 120 and the top cover 110 form three continuous topological structures of the side plates 120-the top cover 110, and the side plates 120 form continuous three topological structures of the side plates 110.

In some embodiments, the first topology unit 111 is hexagonal, and three angles of the first modulation hole 112 are disposed corresponding to three sides of the first topology unit 111; and/or the second topology unit 121 is hexagonal, and three corners of the second modulation hole 122 are respectively corresponding to three sides of the second topology unit 121.

The topology structure on the top cover 110 adopts a topology structure of θ=0° of the b part in the drawing, that is, three angles of the first modulation hole 112 are respectively corresponding to three edges of the first topology unit 111, while the structure of the side plate 120 adopts a topology valley structure different from the topology structure, that is, a topology structure opposite to θ=0° of the b part in the drawing, so that the top cover 110, the side plates 120 on both sides and the top cover 110 form three continuous topology structures of the side plate 120-the top cover 110-the side plate 120 from one side to the other, when the top cover 110 receives an impact force along the connecting edge of the top cover 110 and the side plate 120, the impact elastic wave does not propagate forward along the two edges of the side plate 120 and the top cover 110, thereby buffering the impact force acting on the top cover 110, reducing the amount of the elastic wave entering the middle part of the top cover 110, and further effectively avoiding buckling deformation of the middle part of the top cover 110 caused by the impact force.

In some embodiments, the first topology unit 111 is hexagonal, and three angles of the first modulation hole 112 are disposed corresponding to three angles of the first topology unit 111; and/or the second topology unit 121 is hexagonal, and three corners of the second modulation hole 122 are respectively corresponding to three corners of the second topology unit 121.

The topology structure on the top cover 110 may adopt a topology structure of θ= -30 ° in fig. 4a or a topology structure of θ= -30 ° in fig. 4c, that is, three angles of the first modulation hole 112 are corresponding to three edges of the first topology unit 111, while the structure of the side plate 120 adopts a topology valley structure different from that of the first modulation hole, that is, a topology structure of θ= -30 ° in fig. 4c or a topology structure of θ= -30 ° in fig. 4a, so that the top cover 110 and the side plates 120 on both sides form continuous three topology structures of the side plates 120-the top cover 110-the side plates 120 from one side to the other, when the top cover 110 receives an impact force in a direction along a connecting edge of the top cover 110 and the side plates 120, the impact elastic wave propagates forward without reflection along two edges of the side plates 120 and the top cover 110, thereby buffering the impact force acting on the top cover 110, reducing the amount of the elastic wave entering the middle part of the top cover 110, and further effectively avoiding buckling deformation in the middle of the top cover 110 caused by the impact force.

In some embodiments, referring to fig. 2 and fig. 5, two side plates 120 are disposed opposite to each other, two side plates 120 are distributed and connected to two ends of the top cover 110, the top cover 110 and the side plates 120 may be integrally formed, when two side plates 120 are disposed, the two side plates 120 are disposed at positions of two opposite sides of the top plate, so as to form a continuous structure, so that the shock elastic wave propagates forward along two edges of the side plates 120 and the top cover 110 without reflection, where the packaging structure 100 further includes two connection plates 150, the two connection plates 150 are disposed opposite to the top cover 110, respectively connect the two side plates 120, and cover the side walls of the article to be packaged, the top cover 110, the side plates 120 and the connection plates 150 may be integrally formed, and the two side plates 120 and the two connection plates 150 are enclosed to form a four-sided structure, so as to form a containing cavity, and when the packaging article to be packaged on the article to be packaged, so as to further improve the protection effect of the article to be packaged.

In other embodiments, the side plates 120 may be further provided with four side plates 120, where the four side plates 120 are respectively disposed in four directions of the top cover 110, and when the top cover 110 receives an impact force in any direction along the direction of the connecting edge of the top cover 110 and the side plates 120, the impact elastic waves can be propagated forward without reflection along two edges of the side plates 120 and the top cover 110, so as to buffer the impact force acting on the top cover 110, reduce the amount of the elastic waves entering into the middle part of the top cover 110, and further avoid buckling deformation of the middle weak position of the top cover 110 caused by the impact force.

In some embodiments, referring to fig. 5, the packaging structure 100 further comprises a reinforcement 130, the reinforcement 130 connecting the side panel 120 and the connection panel 150 connected to each other. Wherein, the reinforcing portion 130 can be integrally arranged with the top cover 110 and the side plate 120 or the connecting plate 150, and the corner is weak due to the fact that the collision is easy to occur at the corner, and the deformation is easy to occur when the load is overlarge, so that the reinforcing portion 130 is arranged at the corner position where the side plate 120 and the connecting plate 150 are connected, namely, the corner reinforcing design is adopted to enable the corner to protrude to form the reinforcing portion 130, when the collision or the falling occurs, the impact effect occurs at the corner where the reinforcing portion 130 is arranged, the edge of the packaging structure 100 is avoided, meanwhile, the clamping experiment avoids the load to act at the edge, and further the omnibearing protection is realized, and the protection effect on the article to be packaged is further improved.

In some embodiments, referring to fig. 5, the packaging structure 100 further includes a base 140, where the base 140 is disposed below the article to be packaged and is used for supporting the article to be packaged, and the base 140 and the top cover 110 clamp the article to be packaged in the middle, so as to realize omnibearing protection, and meanwhile, the corner of the base 140 is also provided with a reinforcing portion 130, and the reinforcing portion 130 and the base 140 are integrally disposed, so that when a fall or collision occurs, an impact effect occurs at the corner where the reinforcing portion 130 is disposed, avoiding the edge of the packaging structure 100, and meanwhile, the clamping experiment avoids a load acting on the edge, so that omnibearing protection is realized, and the protection effect of the article to be packaged is further improved.

A second aspect of the present application provides a packaging assembly for packaging an article to be packaged, including a package box and the above-mentioned packaging structure 100, the packaging structure 100 is packaged on the outer surface of the article to be packaged, and the article to be packaged and the packaging structure 100 are placed in the package box.

A third aspect of the present application provides an apparatus kit comprising an article to be packaged and the above-described packaging assembly, the packaging structure 100 being packaged on an outer surface of the article to be packaged, the article to be packaged and the packaging structure 100 being placed in a package.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

Claims (12)

1. A packaging structure for packaging an article to be packaged, comprising:

a top cover (110) arranged on the top wall of the article to be packaged and provided with a plurality of first topological units (111), wherein the first topological units (111) are provided with first modulation holes (112);

the side plate (120) is coated on the side wall of the article to be packaged and is provided with a plurality of second topological units (121), and the second topological units (121) are provided with second modulation holes (122);

the first modulation hole (112) is directed along a first direction, the second modulation hole (122) is directed along a second direction, and the first direction and the second direction are arranged at an included angle.

2. The packaging structure according to claim 1, wherein the first modulation aperture (112) is directed opposite to the second modulation aperture (122), the first direction being opposite to the second direction.

3. The packaging structure according to claim 1, wherein the first modulation aperture (112) and the second modulation aperture (122) are both triangular.

4. A packaging structure according to claim 3, wherein the first topology unit (111) is hexagonal, and the three corners of the first modulation aperture (112) are arranged in correspondence with three sides of the first topology unit (111), respectively;

and/or

The second topological unit (121) is hexagonal, and three corners of the second modulation hole (122) are respectively arranged corresponding to three sides of the second topological unit (121).

5. A packaging structure according to claim 3, wherein the first topology unit (111) is hexagonal, and the three corners of the first modulation aperture (112) are arranged in correspondence with three of the corners of the first topology unit (111), respectively;

and/or

The second topological unit (121) is hexagonal, and three corners of the second modulation hole (122) are respectively arranged corresponding to three corners of the second topological unit (121).

6. The packaging structure according to claim 1, wherein the number of the side plates (120) is two, the two side plates (120) are disposed opposite to each other, and the two side plates (120) are respectively connected to both ends of the top cover (110).

7. The packaging structure according to claim 6, wherein the packaging structure (100) further comprises two connection plates (150), and the two connection plates (150) are oppositely arranged on the top cover (110), respectively connected with the two side plates (120), and wrapped on the side walls of the articles to be packaged.

8. The packaging structure according to claim 7, wherein the top cover (110) is quadrangular, and two of the connecting plates (150) and two of the side plates (120) are respectively connected to one of the edges of the top cover (110).

9. The packaging structure according to claim 7, wherein the packaging structure (100) further comprises a reinforcement (130), the reinforcement (130) connecting the side panels (120) and the connecting panel (150) to each other.

10. The packaging structure according to any one of claims 1-9, wherein the packaging structure (100) further comprises a base (140), the base (140) being arranged below the item to be packaged for supporting the item to be packaged.

11. A packaging assembly for packaging an article to be packaged, characterized by comprising a packaging box and a packaging structure (100) according to any one of claims 1-10, the packaging structure (100) being arranged on top of the article to be packaged, the packaging box being packaged on an outer surface of the article to be packaged.

12. A kit of parts comprising an item to be packaged and a packaging assembly according to claim 11.