CN213058391U - Packaging structure - Google Patents

Abstract

The utility model discloses a packaging structure, a cooking utensil, cooking utensil can be placed in the packing box after being packed by packaging structure, packaging structure includes the foam component, the foam component including be used for with packing box contact the contact surface and with contact surface vertically side, the bight of foam component is provided with the bulge that is used for with the packing box contact, the bulge extends from the contact surface and links to each other with the side, bulge protrusion in the side, wherein, the bulge is R along the thickness of the thickness direction of foam component and the thickness of foam component's thickness ratio, wherein 1/3 is less than or equal to R and is less than or equal to 2/3. The utility model provides a packaging structure not only can improve packaging structure's support intensity, can improve the cushioning effect of foam component moreover, especially improves the cushioning effect in bight department to reduce cooking utensil's damaged probability.

Description

Packaging structure

Technical Field

The utility model relates to a cooking utensil packing technical field, and more specifically relates to a packaging structure.

Background

In the prior art, after the cooking devices are packaged, the cooking devices are usually transported by various transportation methods such as land transportation, sea transportation, or air transportation, and finally reach the hands of the user. In order to prevent the packaged cooking utensil from being damaged during transportation, the product is generally wrapped with foam to relieve the impact of external force on the cooking utensil.

The existing foam structure is high in structural strength and poor in buffering effect although the existing foam structure wraps the cooking utensil in an all-round manner, so that the probability of breakage of the cooking utensil is high in the transportation process.

Therefore, a packaging structure is needed to at least partially solve the above problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

In order to solve the above problem at least partially, the utility model provides a packaging structure for cooking utensil, cooking utensil quilt can place in the packing box after packaging structure packs, packaging structure includes:

a foam member including a contact surface for contacting the packing case and a side surface perpendicular to the contact surface, a corner portion of the foam member being provided with a projection for contacting the packing case, the projection extending from the contact surface and being connected to the side surface, the projection projecting from the side surface,

wherein a thickness ratio of a thickness of the protrusion in a thickness direction of the foam member to a thickness of the foam member is R, wherein 1/3 ≦ R ≦ 2/3.

According to the scheme, the protruding portion with the thickness smaller than that of the foam member is arranged, the structural strength of the foam member at the corner portion can be properly reduced, the protruding portion can have deformation capacity and can deform under the action of impact force, so that when the cooking appliance falls and is impacted by foreign objects in the transportation process, the packaging box can be subjected to impact force at the corner portion of the packaging box, the impact force transmitted to the cooking appliance can be reduced by means of the protruding portion, and the damage probability of the cooking appliance is reduced.

The utility model provides a packaging structure not only can improve packaging structure's support intensity, can improve the cushioning effect of foam component moreover, especially improves the cushioning effect in bight department to reduce cooking utensil's damaged probability.

Alternatively, the projecting portion includes a length side surface portion and a width side surface portion that are connected to each other, the length side surface portion being located on a side surface extending in a length direction of the foam member, the width side surface portion being located on a side surface extending in a width direction of the foam member.

According to this aspect, the impact force from the side surface extending in the longitudinal direction of the packaging box and the impact force from the side surface extending in the width direction of the packaging box can be reduced at the same time, and damage to the portion of the cooking utensil that contacts the corner portion of the foam member can be avoided more effectively.

Optionally, the length side portions are integrally formed with or spaced apart from the width side portions.

According to the scheme, when the length side part and the width side part are integrally formed, the edge of the foam member is also provided with the protruding part for connecting the length side part and the width side part, so that a roughly angular protruding part is formed, when the packing box is subjected to impact force, the impact force can be transmitted between the length side part and the width side part, and the length side part and the width side part are simultaneously deformed to reduce the impact force transmitted to the cooking utensil; especially, when the packing box receives the striking in corner point or arris department, the impact force is great, and the dispersion is transmitted to length side portion and width side portion relatively fast and can further avoid cooking utensil damaged.

When the length side portion is spaced apart from the width side portion, the edge of the foam member is not provided with a projection, and the projection includes two independent portions at the corner, whereby the length side portion and the width side portion each have independent and large deformation capabilities, do not interfere with each other when deformed, and enable further reduction of impact force that the cooking appliance received.

Optionally, the packaging structure includes a first foam member and a second foam member, the first foam member being spaced apart from the second foam member when the packaging structure is used to package the cooking appliance, the projection being provided to at least one of the first foam member and the second foam member.

According to the present aspect, the specific position of the protruding portion on the foam member can be set as desired, so that the portion of the cooking appliance corresponding to the protruding portion can be protected as desired, avoiding the breakage of the portion.

Optionally, the first foam member includes a first contact surface for contacting the packing box and a first side surface perpendicular to the first contact surface, four first corner portions of the first foam member are each provided with a first protrusion, the first protrusions extend from the first contact surface and are connected with the first side surface, and the first protrusions protrude from the first side surface,

wherein a first thickness ratio of a thickness of the first protrusion in a thickness direction of the first foam member to the thickness of the first foam member is R1, wherein 1/3 ≦ R1 ≦ 2/3.

According to the scheme, the impact force transmitted to the cooking utensil can be reduced by means of the convex parts on the first foam component, and the breakage probability of the part of the cooking utensil corresponding to the first foam component is reduced.

Optionally, the second foam member includes a second contact surface for contacting the packing box and a second side surface perpendicular to the second contact surface, and each of four second corner portions of the second foam member is provided with a second protrusion extending from the second contact surface and connected to the second side surface, the second protrusion protruding from the second side surface,

wherein a second thickness ratio of a thickness of the second protrusion in a thickness direction of the second foam member to the thickness of the second foam member is R2, wherein 1/3 ≦ R2 ≦ 2/3.

According to the scheme, the impact force transmitted to the cooking utensil can be reduced by means of the convex parts on the second foam component, and the breakage probability of the part of the cooking utensil corresponding to the second foam component is reduced.

Optionally, the first foam member and the second foam member are arranged up and down relative to the cooking utensil, and the contact surface is a plane extending in a horizontal direction.

According to the scheme, the structure of the protruding part can be suitable for the packaging structure for packaging the cooking utensil in a vertically-arranged mode.

Optionally, the first foam member and the second foam member are arranged left and right with respect to the cooking appliance, and the contact surface is a plane extending in a vertical direction.

According to this scheme, the structure of bulge can be applicable to the mode packing cooking utensil's that adopts to arrange about the adoption packaging structure.

Optionally, the foam member is provided at the convex portion with a cushion hole, an extending direction of which is the same as the thickness direction.

According to the scheme, the deformation capacity of the protruding part can be improved, so that the buffering capacity of the foam member at the corner part can be improved, and the damage probability of the cooking utensil is further reduced.

Optionally, the protrusions on the same side are independent and unconnected to each other.

According to the scheme, the protruding parts on the same side are arranged to be independent and unconnected, so that the protruding parts on the same side respectively have independent and large deformation capacity, the protruding parts do not interfere with each other when deformed, the deformation capacity of the protruding parts is prevented from being weakened by the connected structure, and the overall buffering effect of the foam member is good.

Optionally, the portion of the foam member between the projections on the same side is not in contact with the container.

According to the scheme, the foam component is arranged on the side face of the foam component, except the protruding portion which can be contacted with the packing box, other parts are not contacted with the packing box, so that the impact force applied to the side face of the packing box can be dispersedly transmitted to the protruding portion at the corner of the foam component, then the impact force transmitted to the cooking utensil is reduced by means of the deformation of the protruding portion, the impact force is prevented from being directly transmitted to the part, corresponding to the side face of the cooking utensil, of the foam component from the side face of the packing box, and the cooking utensil is prevented from being damaged due to overlarge stress at the side face.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.

In the drawings:

fig. 1 is a schematic structural view of a packaging structure according to a preferred embodiment of the present invention in an assembled state with a cooking appliance;

FIG. 2 is a schematic structural view of the first foam element shown in FIG. 1 in an inverted state;

fig. 3 is a schematic structural view of the second foam member shown in fig. 1.

Description of reference numerals:

10: the foam member 11: contact surface

12: side surface 13: corner part

14: projection 15: length side surface part

16: width side surface portion 17: buffer hole

110: first foam member 111: first contact surface

112: first side surface 113: first corner

114: first projecting portion 115: first concave part

116: first opening 210: second foam member

211: second contact surface 212: second side surface

213: second corner portion 214: second projecting part

215: second recess 216: second opening

20: cooking utensil

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In the following description, a detailed description will be given for a thorough understanding of the present invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal words such as "first" and "second" are referred to in this application as labels only, and do not have any other meanings, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for purposes of illustration only and are not limiting.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.

Fig. 1 to 3 show a packaging structure according to a preferred embodiment of the present invention, which may be used to package a cooking appliance 20, for example, the cooking appliance 20 may be an electric cooker, an electric pressure cooker or other cooking appliance 20. The cooking utensil 20 may be packaged by the packaging structure and placed in the packaging box. Further, the present invention provides a packaging structure that can be used with a packaging box for packaging cooking utensil 20 to package cooking utensil 20.

As shown in fig. 1, the foam member 10 may include a contact surface 11 for contacting the packing case and a side surface 12 perpendicular to the contact surface 11. The contact surface 11 is the outwardly facing surface of the foam member 10. The corners 13 of the foam element 10 can be provided with projections 14 for contact with the package. When the packaging structure is used for packaging and then placing the packaging structure in the packaging box, the contact surface 11 can be in contact with the inner surface of the packaging box, and the protruding part 14 can also be in contact with the inner surface of the packaging box. A projection 14 can extend from the contact surface 11 and connect to the side surface 12, the projection 14 projecting from the side surface 12.

Wherein the ratio of the thickness of the projecting portion 14 in the thickness direction D1 of the foam member 10 to the thickness of the foam member 10 is R, wherein 1/3R 2/3. For example, R ═ about 1/3, about 1/2, about 2/3, about 3/4, about 4/5, about 1, and the like.

With this embodiment, the structural strength of the foam member 10 at the corner 13 can be suitably reduced, and the protrusion 14 can have a deformation capability, which can be deformed when being subjected to an impact force, so that when the cooking utensil 20 falls, is hit by a foreign object, or the like during transportation, the packing box is subjected to the impact force at the corner 13, and the impact force transmitted to the cooking utensil 20 can be reduced by the protrusion 14, thereby reducing the breakage probability of the cooking utensil 20. Therefore, by providing the protruding portion 14, not only the supporting strength of the packaging structure can be improved, but also the cushioning effect of the foam member 10, particularly at the corner portion 13, can be improved, thereby reducing the probability of breakage of the cooking utensil 20.

The shape of the projection 14 is a right-angle shape. Specifically, the projecting portion 14 may include a length side surface portion 15 and a width side surface portion 16 connected to each other. The longitudinal side surface portion 15 is located on the side surface 12 extending in the longitudinal direction D2 of the foam member 10, and the width side surface portion 16 is located on the side surface 12 extending in the width direction D3 of the foam member 10. This can reduce both the impact force from the side 12 extending in the length direction D2 of the packing box and the impact force from the side 12 extending in the width direction D3 of the packing box, and better avoid breakage of the portion of the cooking utensil 20 that contacts the corner 13 of the foam member 10.

Further, the length side face portion 15 and the width side face portion 16 can be integrally formed or spaced apart. When length side 15 and width side 16 are integrally formed, the edges of foam member 10 are also provided with protrusions connecting length side 15 to width side 16, thereby forming a substantially angular protrusion 14, so that when the package box is subjected to an impact force, the impact force can be transmitted between length side 15 and width side 16, causing both to deform simultaneously to reduce the impact force transmitted to cooking utensil 20; especially, when the packing box is hit at the corner or edge, the impact force is large, and the impact force is quickly dispersed and transmitted to the length side portion 15 and the width side portion 16, so that the damage of the cooking utensil 20 can be further prevented.

When length side 15 is spaced apart from width side 16, the edges of foam member 10 are not provided with projections 14, and projections 14 include two independent portions at corners 13, thereby allowing length side 15 and width side 16 to each have independent and large deformation capabilities, respectively, without interfering with each other when deformed, enabling further reduction in the impact force to which cooking utensil 20 is subjected.

It is ensured that both the side 12 extending in the length direction D2 of the foam member 10 and the side 12 extending in the width direction D3 of the foam member 10 can reduce the impact force by means of the protrusions 14, so that the impact force transmitted to the cooking utensil 20 can be reduced, and the breakage probability of the cooking utensil 20 can be reduced.

In this embodiment, the side 12 is provided so as not to contact the package. The projections 14 on the same side may be spaced apart, independent of each other, and not connected. Specifically, the length side portions 15 on the same side may be spaced apart, independent of each other, and not connected; the width side portions 16 on the same side may be spaced apart, independent of each other, and not connected. Therefore, the convex parts 14 on the same side respectively have independent and larger deformation capacity, and do not interfere with each other during deformation, so that the deformation capacity of the convex parts 14 is prevented from being weakened by a connected structure, and the overall buffering effect of the foam member 10 is good.

Alternatively, the portions of the foam member 10 between the projections 14 on the same side do not contact the package. Specifically, the portions of the foam member 10 between the length side face portions 15 on the same side do not contact the packing box; the portion of the foam member 10 between the width side portions 16 on the same side does not contact the packing box. That is, the foam member 10 has no other projections or structures at the same side that can contact the packing box, except for the projections 14 at the corners 13. Therefore, the foam member 10 is arranged on the side 12 of the foam member, except for the convex part 14 which can contact with the packing box, other parts do not contact with the packing box, so that the impact force applied to the side 12 of the packing box can be dispersedly transmitted to the convex part 14 at the corner of the foam member, and then the impact force transmitted to the cooking utensil 20 is reduced by means of the deformation of the convex part 14, and the cooking utensil 20 is further prevented from being damaged due to the overlarge stress at the side 12.

For example, in the illustrated embodiment, the side 12 is a plane extending between the two corners 13 on the same side, and there are no other structures protruding from the side 12. Of course, other structures may be provided on side 12 that do not contact the container and protrude from side 12, if needed and/or desired.

The foam member 10 may be provided with a buffer hole 17 at the protrusion 14. The buffer holes 17 extend in the same direction as the thickness direction D1 of the foam member 10. With this embodiment, the deformability of the projections 14 can be improved, so that the cushioning ability of the foam member 10 at the corners 13 can be improved, further reducing the chance of breakage of the cooking utensil 20. The buffer hole 17 is a blind hole opened in the thickness direction D1. The buffer hole 17 may be partially located at the protrusion 14 and partially located at the corner 13.

In particular, the packaging structure may include a first foam member 110 and a second foam member 210 that correspond in size and shape. When the packaging structure is used to package cooking utensil 20, first foam member 110 can be spaced apart from second foam member 210 and positioned on opposite sides of cooking utensil 20, respectively. The protrusion 14 may be provided to at least one of the first and second foam members 110 and 210. The projections 14 may be provided on the first foam member 110 or on the second foam member 210 as desired. In the illustrated embodiment, the projections 14 are disposed on the first and second foam members 110, 210 (described in detail below).

As shown in fig. 1, the first and second foam members 110 and 210 may be arranged up and down with respect to the cooking appliance 20, i.e., on the upper and lower sides of the cooking appliance 20, respectively. Specifically, second foam member 210 can be placed laterally first, cooking utensil 20 is seated on second foam member 210, and then first foam member 110 is placed laterally over cooking utensil 20 such that cooking utensil 20 is trapped between first foam member 110 and second foam member 210. In this embodiment, the contact surface 11 can extend in a horizontal direction, i.e. the contact surface 11 is a plane extending in a horizontal direction.

In an embodiment not shown, the first and second foam members 110 and 210 may be arranged left and right with respect to the cooking appliance 20, i.e., on both left and right sides of the cooking appliance 20, respectively. The contact surface 11 can extend in a vertical direction, i.e. the contact surface 11 is a plane extending in a vertical direction.

The embodiment in which the first and second foam members 110 and 210 are arranged up and down with respect to the cooking appliance 20 is described as an example.

It should be noted that directional terms used herein in describing the various components and their positional relationships in the packaging structure, such as "upper", "lower", "above", "below", etc., are relative to the packaging structure in the horizontal state shown in fig. 1.

As shown in fig. 2, the first foam member 110 is a member shaped like a rectangular parallelepiped. The first foam member 110 may include a first contact surface 111 for contacting the packing case and a first side surface 112 perpendicular to the first contact surface 111. The four first corners 113 of the first foam member 110 may each be provided with a first protrusion 114. The first protrusion 114 can extend from the first contact surface 111 and be connected to the first side surface 112. In the illustrated embodiment, the first contact surface 111 is an upper surface of the first foam member 110, which is a flat surface extending in a horizontal direction. The four first side surfaces 112 are vertical surfaces and are connected to the first contact surfaces 111, respectively. The first protrusion 114 can extend downward from the first contact surface 111 of the first foam member 110 and be connected to the first side surface 112.

The first protrusion 114 can protrude from the first side surface 112, and a first thickness ratio of a thickness T1 of the first protrusion 114 in a thickness direction D1 of the first foam member 110 to a thickness T1 of the first foam member 110 is R1, wherein R1 is 1/3 ≦ 2/3. For example, R1 is about 1/3, about 1/2, about 2/3, about 3/4, about 4/5, about 1, and the like.

Therefore, the impact force transmitted to cooking utensil 20 can be reduced by virtue of protruding part 14 on first foam member 110, and the breakage probability of the part of cooking utensil 20 corresponding to first foam member 110 is reduced.

The first protrusion 114 may include a length side part 15 and a width side part 16 connected to each other. The length side face portion 15 is located on the side face 12 extending in the length direction D2 of the first foam member 110, and the width side face portion 16 is located on the side face 12 extending in the width direction D3 of the first foam member 110.

As shown in fig. 3, the second foam member 210 is a member shaped like a rectangular parallelepiped. The second foam member 210 may include a second contact surface 211 for contacting the packing case and a second side surface 212 perpendicular to the second contact surface 211. The four second corners 213 of the second foam element 210 are each provided with a second protrusion 214, the second protrusions 214 extending from the second contact surface 211 and protruding from the second side surface 212, in the illustrated embodiment, the second contact surface 211 is a lower surface of the second foam element 210, which is a plane extending in a horizontal direction. The four second side surfaces 212 are vertical surfaces and are connected to the second contact surfaces 211, respectively. A second protrusion 214 can extend downward from the second contact surface 211 of the second foam element 210 and connect to the second side surface 212.

The second protrusion 214 can protrude from the second side surface 212, and a ratio of a thickness T2 of the second protrusion 214 in a thickness direction D1 of the second foam member 210 to a second thickness T2 of the thickness of the second foam member 210 is R2, wherein 1/3R 2 2/3. For example, R2 is about 1/3, about 1/2, about 2/3, about 3/4, about 4/5, about 1, and the like.

Therefore, the impact force transmitted to the cooking utensil 20 can be reduced by the convex part 14 on the second foam member 210, and the breakage probability of the part of the cooking utensil 20 corresponding to the second foam member 210 is reduced.

The second protrusion 214 may include a length side surface part 15 and a width side surface part 16 connected to each other. The length side face portion 15 is located at the side face 12 extending in the length direction D2 of the second foam member 210, and the width side face portion 16 is located at the side face 12 extending in the width direction D3 of the second foam member 210.

Further, in order to better package the cooking utensil 20 and prevent the cooking utensil 20 from shaking relative to the package structure, the foam member 10 may be further provided with a receiving portion for receiving the cooking utensil 20. The receiving portion may include a recess and an opening provided at the recess. Specifically, referring back to fig. 2, the first foam member 110 may be provided with a first recess 115 recessed upward from the first foam member 110 and a first opening 116 provided at the recess. The first opening 116 is an open mouth. Referring back to fig. 3, the second foam member 210 may be provided with a second recess 215 recessed upward from the second foam member 210 and a second opening 216 provided at the recess. The second opening 216 is an open mouth. Thereby, the cooking appliance 20 can be securely retained in the packaging structure.

The utility model provides a packaging structure for cooking utensil 20, cooking utensil 20 can be placed in the packing box by packaging structure after packing, and packaging structure includes foam component 10, foam component 10 including be used for with packing box contact's contact surface 11 and with contact surface 11 vertically side 12, foam component 10's bight 13 be provided with be used for with packing box contact's bulge 14, bulge 14 extends from contact surface 11 and links to each other with side 12, bulge 14 protrusion in side 12.

Wherein the ratio of the thickness of the projecting portion 14 in the thickness direction D1 of the foam member 10 to the thickness of the foam member 10 is R, wherein 1/3R 2/3.

According to the scheme, the structural strength of the foam member 10 at the corner 13 can be properly reduced by arranging the protruding part 14 with the thickness smaller than that of the foam member 10, and the protruding part 14 can have the deformation capacity and can deform under the action of impact force, so that when the cooking utensil 20 is in the transportation process and the phenomena of falling of the cooking utensil 20, impact of foreign objects and the like are met, the packaging box can be subjected to the impact force at the corner 13, the impact force transmitted to the cooking utensil 20 can be reduced by means of the protruding part 14, and the breakage probability of the cooking utensil 20 is reduced.

The utility model provides a packaging structure not only can improve packaging structure's support intensity, can improve the cushioning effect of foam component 10 moreover, especially improves the cushioning effect in bight 13 department to reduce cooking utensil 20's damaged probability.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (11)

1. A packaging structure for a cooking utensil (20), said cooking utensil (20) being capable of being placed in a packaging box after being packaged by said packaging structure, characterized in that said packaging structure comprises:

a foam member (10), the foam member (10) comprising a contact surface (11) for contacting the container and a side surface (12) perpendicular to the contact surface (11), a corner portion (13) of the foam member (10) being provided with a protrusion (14) for contacting the container, the protrusion (14) extending from the contact surface (11) and being connected to the side surface (12), the protrusion (14) protruding from the side surface (12),

wherein a thickness ratio of a thickness of the protrusion (14) in a thickness direction (D1) of the foam member (10) to a thickness of the foam member (10) is R, wherein 1/3 ≦ R ≦ 2/3.

2. The packaging structure according to claim 1, wherein the projection (14) comprises a length side portion (15) and a width side portion (16) connected to each other, the length side portion (15) being located on a side (12) extending in a length direction (D2) of the foam member (10), the width side portion (16) being located on a side (12) extending in a width direction (D3) of the foam member (10).

3. The packaging structure according to claim 2, characterized in that said length side portions (15) are integrally formed or spaced apart from said width side portions (16).

4. The packaging structure of claim 1,

the packaging structure comprises a first foam member (110) and a second foam member (210), the first foam member (110) being spaced apart from the second foam member (210) when the packaging structure is used to package the cooking appliance (20), the protrusion (14) being provided to at least one of the first foam member (110) and the second foam member (210).

5. The packaging structure of claim 4,

the first foam member (110) comprises a first contact surface (111) used for being in contact with the packing box and a first side surface (112) perpendicular to the first contact surface (111), four first corner parts (113) of the first foam member (110) are provided with first protruding parts (114), the first protruding parts (114) extend from the first contact surface (111) and are connected with the first side surface (112), and the first protruding parts (114) protrude out of the first side surface (112),

wherein a first thickness ratio of a thickness of the first protrusion (114) in a thickness direction (D1) of the first foam member (110) to a thickness of the first foam member (110) is R1, wherein 1/3 ≦ R1 ≦ 2/3.

6. The packaging structure of claim 4,

the second foam member (210) comprises a second contact surface (211) for contacting the packing case and a second side surface (212) perpendicular to the second contact surface (211), four second corners (213) of the second foam member (210) are provided with second convex parts (214), the second convex parts (214) extend from the second contact surface (211) and are connected with the second side surface (212), and the second convex parts (214) are protruded out of the second side surface (212),

wherein a second thickness ratio of a thickness of the second protrusion (214) in a thickness direction (D1) of the second foam member (210) to a thickness of the second foam member (210) is R2, wherein 1/3 ≦ R2 ≦ 2/3.

7. The packaging structure according to claim 4, wherein the first foam member (110) and the second foam member (210) are arranged above and below with respect to the cooking utensil (20), and the contact surface (11) is a plane extending in a horizontal direction.

8. The packaging structure according to claim 4, characterized in that the first foam member (110) and the second foam member (210) are arranged side-to-side with respect to the cooking appliance (20), the contact surface (11) being a plane extending in a vertical direction.

9. The packaging structure according to claim 1, characterized in that the foam member (10) is provided with a cushioning hole (17) at the bulge (14), the cushioning hole (17) extending in the same direction as the thickness direction (D1).

10. The packaging structure according to claim 1, characterized in that said projections (14) of the same side are independent of each other, unconnected.

11. The packaging structure according to claim 10, characterized in that the portions of the foam elements (10) between the projections (14) on the same side do not come into contact with the box.

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