Combined packaging structure and household appliance

Abstract

The utility model provides a combined type packaging structure and a household appliance, and relates to the technical field of article packaging, the combined type packaging structure comprises a plurality of packaging pieces, each packaging piece is packaged on one side of the household appliance, at least one packaging piece comprises a degradable foam board, a first opening is formed in one end of the first containing cavity, and a second opening is formed in the other end of the first containing cavity; the paper-plastic plate is arranged at the first opening of the degradable foam plate, and an accommodating space is defined by the paper-plastic plate and the degradable foam plate so as to accommodate one side of the household appliance. The degradable foam board has higher bearing capacity, so that the bearing capacity of the combined type packaging structure at the degradable foam board is enhanced, and the degradable foam board is used for bearing, so that the length, width and height sizes of the paper-plastic board can be greatly reduced, the overall size is reduced, and the transportation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of article packaging, in particular to a combined packaging structure and household electrical appliances. Background Art

[0002] A common combined packaging structure is EPS (Expanded Polystyrene) foam packaging, which is a non-biodegradable material. The large-scale use of EPS foam has caused serious environmental pollution problems (EPS is the source of white pollution), caused significant damage to the earth's ecological environment, and seriously affected human sustainable development.

[0003] Paper-plastic structures can be naturally degraded under the action of microorganisms and are currently the most widely used environmentally friendly packaging for household appliances. However, the cushioning performance of paper-plastic packaging mainly depends on the buckling deformation of the structural unit. The higher the height of the structural unit, the better the cushioning performance, but the worse the compressive strength. The larger the structural unit, the larger the volume of the overall packaging, making the overall length, width and height of the paper-plastic larger, and the less the packing volume in the standard container, resulting in high transportation costs. In addition, the weight of some packaging materials is uneven. In the stacking test of multi-layer products, the paper-plastic packaging is prone to buckling deformation in the area with heavier weight due to its low compressive strength, leading to collapse.

[0004] Therefore, how to propose a combined packaging structure with small overall size, high compressive strength and high cushioning performance has become a problem that needs to be solved urgently. Utility Model Content

[0005] The utility model provides a combined packaging structure, which solves the problems of large overall size, low compressive strength and poor buffering performance of packaging in the related art.

[0006] Therefore, the first object of the present invention is to provide a combined packaging structure.

[0007] The second purpose of the utility model is to provide a household appliance.

[0008] In view of this, an embodiment of the first aspect of the utility model provides a combined packaging structure, including multiple packages, each package is packaged on one side of a household appliance, and at least one package includes: a degradable foam board, including a first accommodating cavity, and a first opening is provided at one end of the first accommodating cavity; a paper-plastic board is arranged at the first opening of the degradable foam board, and encloses a accommodating space with the degradable foam board to accommodate one side of the household appliance.

[0009] According to the combined packaging structure provided by the utility model, it includes a plurality of packaging pieces, each of which is used to be packaged on one side of a household appliance, thereby completing the packaging of the household appliance. The combined packaging structure includes a paper-plastic board and a degradable foam board, wherein the degradable foam board includes a first accommodating cavity, and a first opening is provided at one end of the first accommodating cavity, and the first accommodating cavity is used to package one side of part of the household appliance. The paper-plastic board is arranged at the first opening of the degradable foam board, and forms a accommodating space with the degradable foam board. In other words, the paper-plastic board and the degradable foam board are arranged on the same side of the household appliance, and the paper-plastic board and the degradable foam board are attached together, thereby enclosing a accommodating space, and using the accommodating space to wrap part of the household appliance, so that the combined packaging structure can completely cover one side of the household appliance, and physically protect the household appliance, thereby reducing the possibility of damaging the household appliance during transportation. At the same time, the yield strength of the degradable foam board is higher than that of the paper-plastic board, which means that the degradable foam board has a higher load-bearing capacity, making the combined packaging structure have a stronger load-bearing capacity at the degradable foam board. The staff can package the heavier side of the household appliance at the degradable foam board according to the actual situation, so as to use the degradable foam board with higher yield strength to bear the heavier area, and avoid the packaging structure from deforming or even collapsing in the area with heavier weight. Compared with the packaging structure that only uses paper-plastic boards in the related art, the combined packaging structure has a smaller volume. Since the packaging structure in the related art only uses paper-plastic boards, in order to obtain a larger load-bearing capacity, it is necessary to increase the size of the paper-plastic board. The combined packaging structure of the present application mainly uses degradable foam boards to bear the weight, so it can greatly reduce the length, width, and height of the paper-plastic board, thereby reducing the overall volume and reducing transportation costs.

[0010] In some embodiments, optionally, the degradable foam board includes: a foam bottom plate; a first side plate, arranged on the foam bottom plate, and forming a first accommodating cavity together with the foam bottom plate; the paper-plastic board includes: a substrate; a second side plate, arranged on the substrate, and forming a second accommodating cavity together with the substrate, and the second accommodating cavity is provided with a second opening at one end of the degradable foam board; the substrate and the foam bottom plate constitute the bottom wall of the accommodating space, and the second side plate and the first side plate constitute the side wall of the accommodating space.

[0011] In this embodiment, the degradable foam board includes a foam bottom plate and a first side plate, the first side plate is arranged on the periphery of the foam bottom plate, and the first side plate and the foam bottom plate form a first accommodation cavity, that is, the first side plate surrounds the outside of the foam bottom plate, and the first accommodation cavity surrounded by the first side plate and the foam bottom plate is a part of the accommodation space. At the same time, the paper-plastic board includes a substrate and a second side plate, the second side plate is arranged on the edge of the substrate, the second side plate and the substrate form a second accommodation cavity, and the second accommodation cavity is provided with a second opening near one end of the degradable foam board. In other words, the second side plate surrounds the outside of the substrate, and the second accommodation cavity surrounded by the second side plate and the substrate is actually another part of the accommodation space, and the paper-plastic board is docked with the first opening of the degradable foam board through the second opening to form an accommodation space. That is, the substrate and the foam bottom plate constitute the bottom wall of the accommodation space, the second side plate and the first side plate surround the side wall of the accommodation space, the substrate and the foam bottom plate, and the second side plate and the first side plate can physically protect the household electrical appliances, reducing the possibility of damaging the household electrical appliances during transportation.

[0012] In some embodiments, optionally, the paper-plastic board further comprises: at least two buffer units, which are arranged on the substrate and located in the second accommodating cavity; wherein the height of the buffer unit is the dimension of the buffer unit protruding from the substrate, and the at least two buffer units include buffer units of at least two heights.

[0013] In this embodiment, the paper-plastic board further includes at least two buffer units, which are arranged on the substrate and located in the second accommodating cavity. At the same time, the height of the buffer unit is the size of the buffer unit protruding from the substrate, and the at least two buffer units include buffer units of at least two heights. In other words, the paper-plastic board includes two buffer units of different heights, which protrude from the substrate in different sizes, and the protruding directions of the buffer units are toward the second accommodating cavity. In other words, the use of two buffer units of different heights can play a role of graded buffering. When a buffer unit of a higher height collapses, other buffer units can also be used for buffering, thereby improving the buffering capacity of the paper-plastic board.

[0014] In some embodiments, optionally, the buffer unit includes: a first buffer unit, which is arranged on the substrate; and a second buffer unit, which is arranged on the substrate; wherein the height of the first buffer unit is greater than the height of the second buffer unit, and the first buffer unit and the second buffer unit are arranged to be spaced apart from each other.

[0015] In this embodiment, the buffer unit includes a first buffer unit and a second buffer unit, both of which are arranged on the substrate, wherein the height of the first buffer unit is greater than the height of the second buffer unit, and when the combined packaging structure is impacted, the first buffer unit may collapse, and at this time the second buffer unit can also play a buffering role, thereby improving the buffering capacity of the paper-plastic board, thereby protecting the household appliances in the accommodation space. In addition, the first buffer unit and the second buffer unit are arranged at intervals along the length direction or width direction of the substrate, which can further improve the buffering performance of the paper-plastic board.

[0016] In some embodiments, optionally, the buffer unit further includes: a third buffer unit, disposed on the substrate; and a fourth buffer unit, disposed on the substrate; wherein the height of the third buffer unit is greater than the height of the fourth buffer unit, and the third buffer unit and the fourth buffer unit are disposed in a stepped manner.

[0017] In this embodiment, the buffer unit further includes a third buffer unit and a fourth buffer unit, the third buffer unit and the fourth buffer unit are both arranged on the substrate, the height of the third buffer unit is greater than the height of the fourth buffer unit, and the third buffer unit and the fourth buffer unit are arranged in a stepped manner. In other words, the third buffer unit and the fourth buffer unit are arranged in a stepped manner in the height direction, and it can be understood that the third buffer unit is further raised on the basis of the fourth buffer unit. When the combined packaging structure is hit, the third buffer unit may collapse, and at this time the fourth buffer unit can also play a buffering role, thereby improving the buffering capacity of the paper-plastic board, thereby protecting the household appliances in the accommodation space.

[0018] In some embodiments, optionally, the third buffer unit and the fourth buffer unit may be an integrated structure, which can improve the compressive strength of the paper-plastic board.

[0019] In some embodiments, optionally, the paper-plastic board further includes: a support block, which is arranged in the second accommodating cavity and connected between the base plate and the second side plate; and a plurality of support ribs, which are cross-arranged on the base plate.

[0020] In this embodiment, the paper-plastic board further includes a support block and a plurality of support ribs, the support block is arranged in the second accommodating cavity, and the support block is connected between the base plate and the second side plate. In other words, the support block connects the base plate and the second side plate, thereby improving the connection strength between the base plate and the second side plate. At the same time, since the support block is arranged at the edge of the base plate, the compressive strength of the paper-plastic board at the edge can also be improved, thereby improving the reliability of the packaging. In addition, a plurality of support ribs are cross-arranged on the base plate, and the support ribs are arranged in an area without a buffer unit, thereby improving the strength of the base plate.

[0021] In some embodiments, optionally, the height of the support block is the size of the support block protruding from the substrate, the height of the support rib is the size of the support rib protruding from the substrate, the height of the support block is greater than the height of the first buffer unit, and the height of the support rib is less than the height of the second buffer unit.

[0022] In this embodiment, the height of the support block is the size of the support block protruding from the substrate, the height of the support rib is the size of the support rib protruding from the substrate, the height of the support block is greater than the height of the first buffer unit, and the height of the support rib is less than the height of the second buffer unit. In other words, the height of the support block is greater than the height of the first buffer unit. Since the protruding height of the support block is relatively large, it can also protect the side of the home appliance and prevent the home appliance from being damaged by side impact. In addition, the height of the support rib is less than the height of the second buffer unit, that is, the protruding height of the support rib is relatively small, which can save materials on the one hand, and on the other hand, the support rib is arranged in the area without the buffer unit, which can also improve the strength of the weak area of ​​the paper-plastic board.

[0023] In some embodiments, optionally, at least one package further includes: a first concave-convex unit, which is arranged on the foam bottom plate; a second concave-convex unit, which is arranged on the base plate, and the degradable foam board and the paper-plastic board are connected via the first concave-convex unit and the second concave-convex unit.

[0024] In this embodiment, at least one package further includes a first concave-convex unit and a second concave-convex unit, wherein the first concave-convex unit is arranged on the foam bottom plate, the second concave-convex unit is arranged on the substrate, and the degradable foam board and the paper-plastic board are connected through the first concave-convex unit and the second concave-convex unit. In other words, the convexities and concaveities in the first concave-convex unit and the second concave-convex unit are arranged in a staggered manner, and the first concave-convex unit and the second concave-convex unit can be docked through the convexities and the concave recesses, thereby connecting the degradable foam board and the paper-plastic board, so that the paper-plastic board and the degradable foam board can be detachably connected, thereby ensuring the reliability of the packaging household appliance.

[0025] In some embodiments, optionally, the first concave-convex unit includes a plurality of first protrusions arranged at intervals, the second concave-convex unit includes a plurality of second protrusions arranged at intervals, and the package further includes: a first reinforcing rib arranged between a plurality of adjacent two first protrusions; and a second reinforcing rib arranged between a plurality of adjacent two second protrusions.

[0026] In this embodiment, the first concave-convex unit includes a plurality of first protrusions arranged at intervals, the second concave-convex unit includes a plurality of second protrusions arranged at intervals, and the first protrusion and the second protrusion are arranged in a staggered manner. At the same time, the paper-plastic board also includes a first reinforcing rib and a second reinforcing rib, wherein the first reinforcing rib is arranged between a plurality of adjacent first protrusions, and the second reinforcing rib is arranged between a plurality of adjacent second protrusions. It can be seen that the first reinforcing rib and the second reinforcing rib can improve the stability of the first protrusion and the second protrusion, avoid deformation of the first protrusion or the second protrusion, and improve the connection stability of the paper-plastic board and the degradable foam board.

[0027] In some embodiments, optionally, the degradable foam board further includes: a recessed structure disposed on the first side board.

[0028] In this embodiment, the degradable foam board further includes a recessed structure, which is disposed on the first side panel. Specifically, the recessed structure can be disposed on the outer side of the first side panel, or on the side of the first side panel facing the first accommodating cavity. By providing the recessed structure, materials can be saved while ensuring the strength of the degradable foam board.

[0029] In some embodiments, optionally, the paper-plastic board further includes: a reinforcing portion, which is arranged at one end of the second side plate facing the second accommodating cavity and is bent and extended toward the substrate.

[0030] In this embodiment, the paper-plastic board further includes a reinforcing portion, which is arranged at one end of the second side plate facing the second accommodating cavity, and the reinforcing portion is bent and extended toward the substrate. It can be seen that the reinforcing portion is arranged on the second side plate and arranged toward the second accommodating cavity, and at the same time, the reinforcing portion is bent and extended toward the substrate, that is, the reinforcing portion is arranged at the periphery of the second side plate, thereby improving the strength of the second side plate and preventing the second side plate from collapsing into the accommodating space due to side impact.

[0031] In some embodiments, optionally, the paper-plastic board is an integrated structure, and the degradable foam board is an integrated structure.

[0032] In this embodiment, the paper-plastic board is an integrated structure, and the degradable foam board is an integrated structure. The paper-plastic board and the degradable foam board with an integrated structure can reduce the preparation cost, and at the same time, can also reduce the assembly links, which not only reduces the labor cost, but also shortens the production cycle of the product, and can also improve the overall strength of the product.

[0033] In some embodiments, optionally, the degradable foam board includes any one of a PBAT foam board, a PLA foam board, a PBS foam board, a PCL foam board, and a PHA foam board.

[0034] In this embodiment, the degradable foam board includes PBAT (Poly (butylene adipate-co-terephthalate), polybutylene adipate / terephthalate) foam board, PLA (polylactic acid), PBS (poly (butylene succinate), polybutylene succinate) foam board, PCL (Polycaprolactone) foam board and PHA (polyhydroxyalkanoates) foam board. Among them, PBAT is a thermoplastic biodegradable plastic, which is a copolymer of butylene adipate and butylene terephthalate, and has good ductility, elongation at break, heat resistance and impact resistance. PLA is a product made of polylactic acid and can be biodegraded. PBS is a biodegradable plastic material. PCL has good biocompatibility and biodegradability. PHA can be used as a biomedical material and a biodegradable packaging material.

[0035] The embodiment of the second aspect of the present invention provides a household appliance, comprising at least one combined packaging structure proposed in the embodiment of the first aspect.

[0036] The household appliance proposed in the present application includes at least one combined packaging structure proposed in the embodiment of the first aspect, and therefore has all the beneficial effects of the combined packaging structure proposed in the first aspect.

[0037] In some embodiments, optionally, the household appliances include: any one of a microwave oven, an oven, a steamer, a microwave oven, a steam oven, a microwave steamer, a microwave steam oven, a refrigerator, a washing machine, an air conditioner, a sweeping robot and a television.

[0038] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0040] Figure 1 This is one of the structural schematic diagrams of a combined packaging structure of an embodiment provided by the utility model;

[0041] Figure 2This is an exploded view of a combined packaging structure of an embodiment provided by the utility model;

[0042] Figure 3 This is one of the structural schematic diagrams of a packaging piece of an embodiment provided by the utility model;

[0043] Figure 4 This is the second structural schematic diagram of a packaging piece according to an embodiment of the present utility model;

[0044] Figure 5 This is one of the structural schematic diagrams of a paper-plastic board according to an embodiment of the present invention;

[0045] Figure 6 This is the second structural schematic diagram of a paper-plastic board according to an embodiment of the present invention;

[0046] Figure 7 This is one of the structural schematic diagrams of a degradable foam board according to an embodiment of the utility model;

[0047] Figure 8 This is the second structural schematic diagram of a degradable foam board according to an embodiment of the present invention;

[0048] Fig. 9 This is the third structural schematic diagram of a packaging piece of an embodiment provided by the utility model;

[0049] Fig.10 This is a fourth structural schematic diagram of a packaging piece according to an embodiment of the present invention;

[0050] Fig.11 This is the third structural schematic diagram of a paper-plastic board according to an embodiment of the present invention;

[0051] Fig.12 This is the fourth structural schematic diagram of a paper-plastic board according to an embodiment of the present invention;

[0052] Fig.13 This is the third structural schematic diagram of a degradable foam board according to an embodiment of the present invention;

[0053] Fig.14 This is the fourth structural schematic diagram of a degradable foam board according to an embodiment of the present invention;

[0054] Fig.15 It is a schematic diagram of the stress-strain curve of EPS and EPBAT in one embodiment provided by the utility model;

[0055] Fig.16 It is a schematic diagram of a buffer coefficient-maximum stress curve of EPS and EPBAT in an embodiment provided by the utility model.

[0056] in, Figures 1 to 14 The corresponding relationship between the reference numerals and component names in the figure is:

[0057] 1 combined packaging structure, 11 accommodating space, 2 packaging element, 21 degradable foam board, 211 first accommodating cavity, 212 first opening, 213 foam bottom plate, 214 first side plate, 215 first concave-convex unit, 2151 first protrusion, 216 first reinforcing rib, 22 paper-plastic board, 221 base plate, 222 second side plate, 223 second accommodating cavity, 224 second opening, 225 second concave-convex unit, 2251 second protrusion, 226 second reinforcing rib, 3 household electrical appliance, 4 buffer unit, 41 first buffer unit, 42 second buffer unit, 43 third buffer unit, 44 fourth buffer unit, 5 support block, 6 support rib, 7 recessed structure, 8 reinforcing part, 9 stepped structure. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0059] The embodiment of the first aspect of the utility model provides a combined packaging structure 1, such as Figure 1 and Figure 2 As shown, it includes multiple packages 2, each package 2 is packaged on one side of the household appliance 3, and at least one package 2 includes: a degradable foam board 21, including a first accommodating cavity 211, and a first opening 212 is provided at one end of the first accommodating cavity 211; a paper-plastic board 22, which is arranged at the first opening 212 of the degradable foam board 21, and encloses a accommodating space 11 with the degradable foam board 21 to accommodate one side of the household appliance 3.

[0060] The combined packaging structure 1 provided by the present invention comprises a plurality of packaging members 2, each of which is used to be packaged on one side of a household appliance 3, thereby completing the packaging of the household appliance 3. Figure 3 and Figure 4 , Fig. 9 and Fig.10As shown, the combined packaging structure 1 includes a paper-plastic board 22 and a degradable foam board 21, wherein the degradable foam board 21 includes a first accommodating cavity 211, and a first opening 212 is provided at one end of the first accommodating cavity 211, and the first accommodating cavity 211 is used to package one side of part of the home appliance 3. The paper-plastic board 22 is arranged at the first opening 212 of the degradable foam board 21, and forms a accommodating space 11 with the degradable foam board 21. That is to say, the paper-plastic board 22 and the degradable foam board 21 are arranged on the same side of the home appliance 3, and the paper-plastic board 22 and the degradable foam board 21 are attached together, thereby enclosing the accommodating space 11, and using the accommodating space 11 to wrap part of the home appliance 3, so that the combined packaging structure 1 can completely cover one side of the home appliance 3, and physically protect the home appliance 3, thereby reducing the possibility of damaging the home appliance 3 during transportation. At the same time, the yield strength of the degradable foam board 21 is higher than the yield strength of the paper-plastic board 22, which means that the degradable foam board 21 has a higher load-bearing capacity, so that the combined packaging structure 1 has a stronger load-bearing capacity at the degradable foam board 21. The staff can pack the heavier side of the household appliance 3 at the degradable foam board 21 according to the actual situation, so as to use the degradable foam board 21 with higher yield strength to bear the heavier area, and avoid the packaging structure from deforming or even collapsing in the area with heavier weight. Compared with the packaging structure that only uses the paper-plastic board 22 in the related art, the combined packaging structure 1 has a smaller volume. Since the packaging structure in the related art only uses the paper-plastic board 22, in order to obtain a larger load-bearing capacity, it is necessary to increase the size of the paper-plastic board 22. The combined packaging structure 1 of the present application mainly uses the degradable foam board 21 to bear the weight, so it can greatly reduce the length, width, and height of the paper-plastic board 22, thereby reducing the overall volume and reducing transportation costs.

[0061] It is understandable that when the household appliance 3 is a microwave oven, the combined packaging structure 1 is used to package the microwave oven. Specifically, generally speaking, some important components such as the power transformer, magnetron and cooling fan are arranged on the right side of the microwave oven, resulting in a relatively large weight on the right side. Therefore, when the combined packaging structure 1 of the present application is adopted, the degradable foam board 21 is correspondingly arranged on the side (right side) where the weight of the microwave oven is larger, and the paper-plastic board 22 is arranged on the other side. The combined packaging structure 1 adopts an upper package to package the top of the microwave oven, and adopts a lower package to package the bottom of the microwave oven. At the same time, the degradable foam board 21 of the upper package and the degradable foam board 21 of the lower package can both be packaged on the edges and corners of the side where the weight of the microwave oven is larger, thereby utilizing the buffering performance of the degradable foam board 21 to physically protect the microwave oven and prevent the edges and corners of the microwave oven from being damaged by external forces.

[0062] In some embodiments, optionally, in the vertical direction, the projection area of ​​the microwave oven accounts for 50% to 90% of the projection area of ​​the package 2 to ensure the integrity of the package.

[0063] In some embodiments, optionally, Figure 7 and Figure 8 As shown, the degradable foam board 21 includes: a foam bottom plate 213; a first side plate 214, which is arranged on the foam bottom plate 213 and is surrounded by the foam bottom plate 213 to form a first accommodating cavity 211; the paper-plastic board 22 includes: a base plate 221; a second side plate 222, which is arranged on the base plate 221 and is surrounded by the base plate 221 to form a second accommodating cavity 223, and the second accommodating cavity 223 is provided with a second opening 224 at one end close to the degradable foam board 21; the base plate 221 and the foam bottom plate 213 constitute the bottom wall of the accommodating space 11, and the second side plate 222 and the first side plate 214 constitute the side wall of the accommodating space 11.

[0064] In this embodiment, the degradable foam board 21 includes a foam bottom board 213 and a first side board 214. The first side board 214 is arranged on the periphery of the foam bottom board 213. The first side board 214 and the foam bottom board 213 form a first accommodating cavity 211. That is, the first side board 214 surrounds the outer side of the foam bottom board 213. The first accommodating cavity 211 formed by the first side board 214 and the foam bottom board 213 is a part of the accommodating space 11. At the same time, the paper-plastic board 22 includes a base board 221 and a second side board 222. The second side board 222 is arranged on the edge of the base board 221. The second side board 222 and the base board 221 form a second accommodating cavity 223. The second accommodating cavity 223 is provided with a second opening 224 at one end close to the degradable foam board 21. That is, the second side plate 222 surrounds the outside of the base plate 221, and the second accommodating cavity 223 formed by the second side plate 222 and the base plate 221 is actually another part of the accommodating space 11, and the paper-plastic board 22 is connected to the first opening 212 of the degradable foam board 21 through the second opening 224 to form the accommodating space 11. That is, the base plate 221 and the foam bottom plate 213 form the bottom wall of the accommodating space 11, and the second side plate 222 and the first side plate 214 form the side wall of the accommodating space 11. The base plate 221 and the foam bottom plate 213, as well as the second side plate 222 and the first side plate 214 can physically protect the household appliance 3, reducing the possibility of damaging the household appliance 3 during transportation.

[0065] In some embodiments, optionally, Figure 5 and Figure 6 As shown, the paper-plastic board 22 also includes: at least two buffer units 4, which are arranged on the substrate 221 and located in the second accommodating cavity 223; wherein the height of the buffer unit 4 is the dimension of the buffer unit 4 protruding from the substrate 221, and the at least two buffer units 4 include buffer units 4 of at least two heights.

[0066] In this embodiment, the paper-plastic board 22 further includes at least two buffer units 4, which are arranged on the substrate 221 and located in the second accommodating cavity 223. At the same time, the height of the buffer unit 4 is the size of the buffer unit 4 protruding from the substrate 221, and the at least two buffer units 4 include buffer units 4 of at least two heights. In other words, the paper-plastic board 22 includes two buffer units 4 of different heights, which protrude from the substrate 221 in different sizes, and the protruding direction of the buffer unit 4 is toward the second accommodating cavity 223. In other words, the use of two buffer units 4 of different heights can play a role of graded buffering. When a buffer unit 4 of a higher height collapses, other buffer units 4 can also be used for buffering, thereby improving the buffering capacity of the paper-plastic board 22.

[0067] In some embodiments, optionally, Figure 5 , Figure 6 , Fig.11 and Fig.12 As shown, the buffer unit 4 includes: a first buffer unit 41, which is arranged on the substrate 221; and a second buffer unit 42, which is arranged on the substrate 221; wherein the height of the first buffer unit 41 is greater than the height of the second buffer unit 42, and the first buffer unit 41 and the second buffer unit 42 are arranged at intervals from each other.

[0068] In this embodiment, the buffer unit 4 includes a first buffer unit 41 and a second buffer unit 42, both of which are arranged on the substrate 221, wherein the height of the first buffer unit 41 is greater than the height of the second buffer unit 42, and when the combined packaging structure 1 is impacted, the first buffer unit 41 may collapse, and at this time, the second buffer unit 42 can also play a buffering role, thereby improving the buffering capacity of the paper-plastic board 22, thereby protecting the household appliances 3 in the accommodating space 11. In addition, the first buffer unit 41 and the second buffer unit 42 are arranged at intervals along the length direction or width direction of the substrate 221, which can further improve the buffering performance of the paper-plastic board 22.

[0069] In some embodiments, optionally, Figure 5 , Figure 6 , Fig.11 and Fig.12 As shown, the buffer unit 4 also includes: a third buffer unit 43, which is arranged on the substrate 221; and a fourth buffer unit 44, which is arranged on the substrate 221; wherein the height of the third buffer unit 43 is greater than the height of the fourth buffer unit 44, and the third buffer unit 43 and the fourth buffer unit 44 are arranged in a stepped manner.

[0070] In this embodiment, the buffer unit 4 further includes a third buffer unit 43 and a fourth buffer unit 44. The third buffer unit 43 and the fourth buffer unit 44 are both arranged on the substrate 221. The height of the third buffer unit 43 is greater than the height of the fourth buffer unit 44. The third buffer unit 43 and the fourth buffer unit 44 are arranged in a stepped manner. In other words, the third buffer unit 43 and the fourth buffer unit 44 are arranged in a stepped manner in the height direction. It can be understood that the third buffer unit 43 is further raised on the basis of the fourth buffer unit 44. When the combined packaging structure 1 is hit, the third buffer unit 43 may collapse. At this time, the fourth buffer unit 44 can also play a buffering role, thereby improving the buffering capacity of the paper-plastic board 22, thereby protecting the household appliances 3 in the accommodating space 11.

[0071] In some embodiments, optionally, the third buffer unit 43 and the fourth buffer unit 44 can be an integrated structure, which can improve the compressive strength of the paper-plastic board 22.

[0072] In some embodiments, optionally, Figure 5 , Figure 6 , Fig.11 and Fig.12 As shown, the paper-plastic board 22 further includes: a support block 5, which is arranged in the second accommodating cavity 223 and connected between the base plate 221 and the second side plate 222; and a plurality of support ribs 6, which are cross-arranged on the base plate 221.

[0073] In this embodiment, the paper-plastic board 22 further includes a support block 5 and a plurality of support ribs 6. The support block 5 is disposed in the second accommodating cavity 223, and the support block 5 is connected between the base plate 221 and the second side plate 222. That is, the support block 5 connects the base plate 221 and the second side plate 222, thereby improving the connection strength between the base plate 221 and the second side plate 222. At the same time, since the support block 5 is disposed at the edge of the base plate 221, the compressive strength of the paper-plastic board 22 at the edge can also be improved, thereby improving the reliability of the packaging. In addition, a plurality of support ribs 6 are cross-arranged on the base plate 221, and the support ribs 6 are disposed in an area without the buffer unit 4, thereby improving the strength of the base plate 221.

[0074] In some embodiments, optionally, the height of the support block 5 is the dimension of the support block 5 protruding from the substrate 221, the height of the support rib 6 is the dimension of the support rib 6 protruding from the substrate 221, the height of the support block 5 is greater than the height of the first buffer unit 41, and the height of the support rib 6 is less than the height of the second buffer unit 42.

[0075] In this embodiment, the height of the support block 5 is the size of the support block 5 protruding from the substrate 221, the height of the support rib 6 is the size of the support rib 6 protruding from the substrate 221, the height of the support block 5 is greater than the height of the first buffer unit 41, and the height of the support rib 6 is less than the height of the second buffer unit 42. In other words, the height of the support block 5 is greater than the height of the first buffer unit 41. Since the protruding height of the support block 5 is relatively large, it can also protect the side of the home appliance 3 and prevent the home appliance 3 from being damaged by side impact. In addition, the height of the support rib 6 is less than the height of the second buffer unit 42, that is, the protruding height of the support rib 6 is relatively small, which can save materials on the one hand, and on the other hand, the support rib 6 is arranged in the area without the buffer unit 4, which can also improve the strength of the weak area of ​​the paper-plastic board 22.

[0076] In some embodiments, optionally, at least one package 2 further includes: a first concave-convex unit 215, which is arranged on the foam bottom plate 213; a second concave-convex unit 225, which is arranged on the substrate 221, and the degradable foam board 21 and the paper-plastic board 22 are connected by the first concave-convex unit 215 and the second concave-convex unit 225.

[0077] In this embodiment, at least one package 2 further includes a first concave-convex unit 215 and a second concave-convex unit 225, wherein Fig.13 and Fig.14 As shown, the first concave-convex unit 215 is arranged on the foam bottom plate 213. Fig.11 and Fig.12 As shown, the second concave-convex unit 225 is arranged on the substrate 221, and the degradable foam board 21 and the paper-plastic board 22 are connected through the first concave-convex unit 215 and the second concave-convex unit 225. That is to say, the convexities and concaveities in the first concave-convex unit 215 and the second concave-convex unit 225 are staggered, and the first concave-convex unit 215 and the second concave-convex unit 225 can be docked through the convexities and concaveities, thereby connecting the degradable foam board 21 and the paper-plastic board 22, so that the paper-plastic board 22 and the degradable foam board 21 can be detachably connected, thereby ensuring the reliability of the packaging home appliance 3.

[0078] In some embodiments, optionally, Figure 5 and Figure 7 As shown, the first concave-convex unit 215 includes a plurality of first protrusions 2151 disposed at intervals, the second concave-convex unit 225 includes a plurality of second protrusions 2251 disposed at intervals, and the package 2 further includes: a first reinforcing rib 216 disposed between a plurality of adjacent two first protrusions 2151; and a second reinforcing rib 226 disposed between a plurality of adjacent two second protrusions 2251.

[0079] In this embodiment, the first concave-convex unit 215 includes a plurality of first protrusions 2151 arranged at intervals, and the second concave-convex unit 225 includes a plurality of second protrusions 2251 arranged at intervals, and the first protrusions 2151 and the second protrusions 2251 are arranged in a staggered manner. At the same time, the paper-plastic board 22 also includes a first reinforcing rib 216 and a second reinforcing rib 226, wherein the first reinforcing rib 216 is arranged between a plurality of adjacent two first protrusions 2151, and the second reinforcing rib 226 is arranged between a plurality of adjacent two second protrusions 2251. It can be seen that the first reinforcing rib 216 and the second reinforcing rib 226 can improve the stability of the first protrusion 2151 and the second protrusion 2251, avoid deformation of the first protrusion 2151 or the second protrusion 2251, and improve the connection stability of the paper-plastic board 22 and the degradable foam board 21.

[0080] In some embodiments, optionally, Figure 7 and Figure 8 As shown, the degradable foam board 21 further includes: a recessed structure 7 disposed on the first side board 214 .

[0081] In this embodiment, the degradable foam board 21 further includes a recessed structure 7, which is disposed on the first side board 214. Specifically, the recessed structure 7 can be disposed on the outside of the first side board 214, or on the side of the first side board 214 facing the first accommodating cavity 211. By providing the recessed structure 7, the material can be saved while ensuring the strength of the degradable foam board 21.

[0082] In some embodiments, optionally, Fig.10 and Fig.12 As shown, the paper-plastic board 22 further includes: a reinforcing portion 8, which is arranged at one end of the second side plate 222 facing the second accommodating cavity 223 and is bent and extended toward the base plate 221.

[0083] In this embodiment, the paper-plastic board 22 further includes a reinforcing portion 8, which is arranged at one end of the second side plate 222 facing the second accommodating cavity 223, and the reinforcing portion 8 is bent and extended toward the substrate 221. It can be seen that the reinforcing portion 8 is arranged on the second side plate 222 and arranged toward the second accommodating cavity 223. At the same time, the reinforcing portion 8 is bent and extended toward the substrate 221, that is, the reinforcing portion 8 is arranged at the periphery of the second side plate 222, thereby improving the strength of the second side plate 222 and preventing the second side plate 222 from collapsing into the accommodating space 11 due to side impact.

[0084] In some embodiments, optionally, the paper-plastic board 22 is an integrated structure, and the degradable foam board 21 is an integrated structure.

[0085] In this embodiment, the paper-plastic board 22 is an integrated structure, and the degradable foam board 21 is an integrated structure. The paper-plastic board 22 and the degradable foam board 21 with an integrated structure can reduce the preparation cost, and at the same time, can also reduce the assembly links, which not only reduces the labor cost, but also shortens the production cycle of the product, and can also improve the overall strength of the product.

[0086] In some embodiments, optionally, the degradable foam board 21 includes any one of a PBAT foam board, a PLA foam board, a PBS foam board, a PCL foam board, and a PHA foam board.

[0087] In this embodiment, the degradable foam board 21 includes PBAT foam board, PLA foam board, PBS foam board, PCL foam board and PHA foam board. Among them, PBAT belongs to thermoplastic biodegradable plastics, is a copolymer of butylene adipate and butylene terephthalate, and has good ductility, elongation at break, heat resistance and impact resistance. PLA is a product made of polylactic acid and can be biodegraded. PBS is a biodegradable plastic material. PCL has good biocompatibility and biodegradability. PHA can be used as a biomedical material and a biodegradable packaging material.

[0088] The embodiment of the second aspect of the utility model provides a household appliance 3, comprising at least one combined packaging structure 1 proposed in the embodiment of the first aspect.

[0089] The household appliance 3 proposed in the present application includes at least one combined packaging structure 1 proposed in the embodiment of the first aspect, and therefore has all the beneficial effects of the combined packaging structure 1 proposed in the first aspect.

[0090] In some embodiments, optionally, the household appliance 3 includes: any one of a microwave oven, an oven, a steamer, a microwave oven, a steam oven, a microwave steamer, a microwave steam oven, a refrigerator, a washing machine, an air conditioner, a sweeping robot and a television.

[0091] In a specific application, the most obvious feature of a commercial microwave oven (household appliance 3) is that it is heavy on the right and light on the left, that is, its center of gravity is on the right side, so the design has higher requirements for the structure of the right area of ​​the upper and lower packaging. In addition, the packaging of commercial microwave ovens generally needs to pass the company's drop test, which is generally a continuous drop of "one corner, three edges and six sides", the corner is the right front corner, and the three edges are the three edges connected to the corner. Therefore, in design, it is necessary to focus on the weight characteristics and drop test requirements of commercial microwave ovens.

[0092] This application makes full use of the thin-wall structural mechanics principle and the excellent cushioning performance of EPBAT (Expanded Poly (butyleneadipate-co-terephthalate) foam to design an excellent performance commercial microwave oven combined environmentally friendly packaging, such as Figure 1 As shown, its exploded diagram is as follows Figure 2 As shown, the left side of the upper and lower packages are both made of paper plastic structure, and the right side is both made of EPBAT foam. The left side uses paper plastic to save material costs (the cost of EPBAT is much higher than that of paper plastic), and the right side uses EPBAT to give the right side of the package better compression resistance and cushioning performance, meeting the weight load requirements of commercial microwave ovens with the center of gravity on the right side.

[0093] PBAT is a thermoplastic biodegradable plastic, a copolymer of butylene adipate and butylene terephthalate, with the characteristics of both PBA (Poly (butyl acrylate)) and PBT (polybutylene terephthalate), with good ductility and elongation at break, as well as good heat resistance and impact resistance; in addition, it has excellent biodegradability, and is a very popular biodegradable material in the research of biodegradable plastics and one of the best biodegradable materials in the market. EPBAT is foamed PBAT, that is, PBAT (Poly (butylene adipate-co-terephthalate), polybutylene adipate / terephthalate) foam. Fig.15 As shown in the figure, the stress-strain curve L1 represents the stress of EPBAT foam under different strains. The density of EPBAT foam is 108.16 kg / m 3 The stress-strain curve L2 represents the stress of EPS foam under different strains. The density of EPS foam is 18.91 kg / m 3 .like Fig.16 As shown, curve L1 represents the relationship between the cushioning coefficient and the maximum stress of EPBAT foam, and curve L2 represents the relationship between the cushioning coefficient and the maximum stress of EPS foam. The specific performance comparison of EPBAT foam and EPS foam is shown in Table 1.

[0094] Table 1

[0095] Elastic modulus E(MPa) <![CDATA[Yield strength σ s (MPa)]]> <![CDATA[Specific energy u (J / cm 3 )]]> <![CDATA[EPS(ρ=18.91kg / m 3 )]]> 1.59 0.097 0.129 <![CDATA[EPBAT(ρ=108.16kg / m 3 )]]> 0.84 0.073 0.124

[0096] Table 1 shows the performance comparison results of EPBAT and traditional EPS, where the elastic modulus E is the slope of the linear segment of the stress-strain curve, which is used to characterize the stiffness of the material.

[0097] The specific energy u is:

[0098]

[0099] Among them, σ is stress, ε is strain, and ε m is the maximum strain of the material. Specific energy characterizes the deformation energy per unit volume of the material and can describe the magnitude of its buffering performance. The larger the specific energy u, the better the buffering performance.

[0100] The calculation formula of the cushioning coefficient C is as follows:

[0101]

[0102] Among them, C is the buffer coefficient, u is the specific energy, σ m is the maximum stress, ε m is the maximum strain of the material, σ is the stress, and ε is the strain.

[0103] In the cushioning factor C-maximum stress curve Fig.16 In the middle, harder materials are on the right, and softer materials are on the left; materials with better cushioning performance are at the bottom, and materials with poorer cushioning performance are at the top.

[0104] From Table 1, we can see that the stiffness of EPBAT is lower than that of EPS, and its yield strength and specific energy (buffering performance) are slightly lower than those of EPS. From the buffer coefficient C-maximum stress curve Fig.16 It can also be seen that its cushioning performance is slightly lower than that of EPS. However, as an environmentally friendly foam, the cushioning performance of this EPBAT is currently relatively excellent. EPBAT foam also has better pressure-bearing capacity and cushioning performance than pure paper plastic. It has stronger pressure resistance during stacking and will not buckle or deform. Therefore, if it is used as the right structure of the upper and lower packaging, and the length, width, and height dimensions at the corresponding position are smaller than those of paper plastic, it can effectively improve the bearing capacity and cushioning performance of the entire packaging. Compared with pure paper plastic packaging, the overall size of the paper plastic + EPBAT combination environmentally friendly packaging is smaller, which can significantly increase the packing volume and reduce transportation costs.

[0105] like Figure 3 and Figure 4 As shown, the lower packaging structure is shown, with paper plastic on the left and EPBAT foam on the right. The structural features of the paper plastic (paper plastic board 22) on the left are as follows:

[0106] (1) The first buffer unit 41 and the second buffer unit 42: realize the hierarchical buffering effect;

[0107] (2) Stepped buffer units (third buffer unit 43 and fourth buffer unit 44): successive level buffering;

[0108] (3) Connection unit (first reinforcing rib 216): supports the main buffer unit to prevent buckling and instability;

[0109] (4) Oblique support unit (support block 5): corner support to enhance corner strength and cushioning performance;

[0110] (5) Skirt (reinforced portion 8): improves the overall cushioning effect of the outer edges;

[0111] (6) Auxiliary support unit (support rib 6): plays an auxiliary pressure-bearing and buffering role.

[0112] The structural features of the foam on the right (degradable foam board 21) are as follows:

[0113] (1) Concavo-convex structure (first concavo-convex unit 215): improves cushioning performance and saves materials;

[0114] (2) Ladder structure 9: the levels are buffered in sequence;

[0115] (3) Connection structure (second reinforcing rib 226): reinforcing protruding structure;

[0116] (4) Concave structure 7: saving materials.

[0117] The paper plastic + EPBAT combined environmentally friendly packaging design method designed in this application is a more effective environmentally friendly packaging design method. The environmentally friendly packaging designed using this method fully utilizes the structural or material characteristics of paper plastic packaging and EPBAT foam, improves the pressure bearing capacity and cushioning performance of the overall packaging, reduces the overall peripheral dimensions, and increases the packing volume of the environmentally friendly packaging. In particular, the design method proposed in this application is not only applicable to the environmentally friendly packaging design of commercial microwave ovens, but can also be expanded to the environmentally friendly packaging design of other products, such as microwave ovens, refrigerators, washing machines, air conditioners, sweeping robots, televisions, etc.

[0118] In the combined packaging proposed in the present application, EPBAT can be replaced by biodegradable materials such as foamed PLA, foamed PBS, foamed PCL or foamed PHA.

[0119] The present application is applicable to environmentally friendly packaging for commercial microwave ovens with large weight and environmentally friendly packaging structures for various other products.

[0120] The combined environmentally friendly packaging for commercial microwave ovens in this application is not only suitable for commercial microwave ovens with larger weight, but can also be expanded to other microwave ovens, household appliances or various products using environmentally friendly packaging. The combined environmentally friendly packaging has strong compressive strength, strong load-bearing capacity, and excellent buffering performance; the overall size of the packaging is small and the packing volume is high.

[0121] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0122] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0123] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0124] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A combined packaging structure, characterized in that: It comprises a plurality of packages, each of which is packaged on one side of the household appliance, and at least one of the packages comprises: The degradable foam board comprises a first accommodating cavity, and a first opening is provided at one end of the first accommodating cavity; The paper-plastic board is arranged at the first opening of the degradable foam board and encloses a containing space with the degradable foam board to accommodate one side of the household appliance.

2. The combined packaging structure according to claim 1, characterized in that: The degradable foam board comprises: Foam base; A first side plate, disposed on the foam bottom plate, and enclosing the first accommodating cavity with the foam bottom plate; The paper-plastic board comprises: substrate; A second side plate is disposed on the base plate and is surrounded by the base plate to form a second accommodating cavity, wherein the second accommodating cavity is provided with a second opening at one end close to the degradable foam plate; The base plate and the foam bottom plate form a bottom wall of the accommodation space, and the second side plate and the first side plate surround a side wall of the accommodation space.

3. The combined packaging structure according to claim 2, characterized in that: The paper-plastic board also includes: At least two buffer units are arranged on the substrate and located in the second accommodation cavity; The height of the buffer unit is the size of the buffer unit protruding from the substrate, and the at least two buffer units include buffer units of at least two heights.

4. The combined packaging structure according to claim 3, characterized in that: The buffer unit comprises: A first buffer unit, disposed on the substrate; A second buffer unit is disposed on the substrate; Wherein, the height of the first buffer unit is greater than that of the second buffer unit, and the first buffer unit and the second buffer unit are spaced apart from each other.

5. The combined packaging structure according to claim 3, characterized in that: The buffer unit also includes: A third buffer unit is disposed on the substrate; a fourth buffer unit, disposed on the substrate; Wherein, the height of the third buffer unit is greater than that of the fourth buffer unit, and the third buffer unit and the fourth buffer unit are arranged in a stepped manner.

6. The combined packaging structure according to claim 2, characterized in that: The paper-plastic board also includes: A support block, disposed in the second accommodating cavity and connected between the base plate and the second side plate; A plurality of supporting ribs are cross-arranged on the base plate.

7. The combined packaging structure according to claim 2, characterized in that: At least one of the packages further comprises: A first concave-convex unit is arranged on the foam bottom plate; The second concave-convex unit is arranged on the substrate, and the degradable foam board and the paper-plastic board are connected through the first concave-convex unit and the second concave-convex unit.

8. The combined packaging structure according to claim 7, characterized in that: The first concave-convex unit includes a plurality of first protrusions arranged at intervals, the second concave-convex unit includes a plurality of second protrusions arranged at intervals, and the packaging further includes: A first reinforcing rib, arranged between two adjacent first protrusions; The second reinforcing rib is arranged between a plurality of adjacent two of the second protrusions.

9. The combined packaging structure according to claim 2, characterized in that: The degradable foam board also includes: The recessed structure is arranged on the first side plate.

10. The combined packaging structure according to claim 2, characterized in that: The paper-plastic board also includes: The reinforcing portion is arranged at one end of the second side plate facing the second accommodating cavity and is bent and extended toward the substrate.

11. The combined packaging structure according to any one of claims 1 to 10, characterized in that: The paper-plastic board is an integrated structure, and the degradable foam board is an integrated structure.

12. The combined packaging structure according to any one of claims 1 to 10, characterized in that: The degradable foam board includes any one of a PBAT foam board, a PLA foam board, a PBS foam board, a PCL foam board and a PHA foam board.

13. A household appliance, characterized in that: The invention comprises at least one combined packaging structure according to any one of claims 1 to 12.

14. The household appliance according to claim 13, characterized in that: include: Any one of a microwave oven, oven, steamer, microwave oven, steam oven, microwave steamer, microwave steam oven, refrigerator, washing machine, air conditioner, robot vacuum cleaner and television.

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