Force transmission structure, packaging assembly, electric appliance assembly, filter screen cover and household appliance

Abstract

A force transmission structure (100), a packaging assembly (400), an electric appliance assembly, a filter screen cover and a household appliance, the force transmission structure (100) comprises a bottom plate (200), and the bottom plate (200) is provided with a regular polygonal through hole (300). The packaging assembly (400) comprises a plurality of protection pieces (401), at least one protection piece (401) is provided with a force transmission structure (100), structural damage caused by energy accumulation near the corner or damage to the product caused by excessive elastic waves propagating into the foam body can be avoided, and therefore the packaging assembly (400) can be designed through extremely thin packaging buffering materials. Therefore, the use amount of packing materials can be reduced, the packing size is reduced, the container loading capacity is improved, and the marine transportation cost is reduced.

Description

A force transmission structure, packaging component, electrical component, filter screen and household appliance

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number CN2022 / 112950, ​​filed on August 17, 2022, entitled “Force transmission structure, packaging assembly, electrical assembly, filter cover and household appliance,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the technical field of electrical equipment, and in particular to a force transmission structure, a packaging assembly, an electrical assembly, a filter screen, and a household appliance. Background Art

[0004] Electrical equipment is often subjected to shock, vibration, and other loads during handling and transportation. To protect these devices from damage, packaging structures are often used to minimize these impacts and vibrations. These packaging components typically consist of corrugated cardboard and foam. The foam is placed inside the corrugated cardboard to cover the outer surface of the equipment, providing protection. Similarly, the packaging structure itself is also subject to shock, vibration, and other loads during this process. When these impacts are concentrated, the packaging structure can easily become damaged, rendering it ineffective in protecting the equipment.

[0005] Public content

[0006] The present disclosure aims to solve the technical problem of cost increase at least to a certain extent. To this end, the present disclosure provides a force transmission structure, a packaging assembly, an electrical assembly, a filter screen, and a household appliance.

[0007] In a first aspect, the present disclosure provides a force transmission structure, comprising:

[0008] The bottom plate is provided with a polygonal through hole.

[0009] The force transmission structure provided by the present disclosure, when applied to packaging materials for packaging protection, can allow the elastic waves generated when the corners fall to fully propagate along the edges, avoiding energy accumulation near the corners that causes structural damage or excessive elastic waves that propagate into the foam body and cause damage to the product.

[0010] In an optional embodiment of the present disclosure, the base plate is hexagonal and the through hole is triangular.

[0011] In an optional embodiment of the present disclosure, the three corners of the through hole are respectively arranged to correspond to three sides of the bottom plate.

[0012] In an optional embodiment of the present disclosure, the three corners of the through hole are respectively arranged to correspond to three corners of the bottom plate.

[0013] In an optional embodiment of the present disclosure, any vertex of the through hole is defined as a first vertex, and a line connecting a center point of the through hole and the first vertex is on a first straight line;

[0014] The bottom plate corresponding to the through hole has an edge close to the first vertex, the midpoint of the edge is defined as the second vertex, and a line connecting the center point of the through hole and the second vertex is on a second straight line;

[0015] The angle between the first straight line and the second straight line is defined as a rotation angle, and the angle of the rotation angle is between -30° and 30°.

[0016] In an optional embodiment of the present disclosure, the spacing distance between two opposite sides of the bottom plate is 5 cm to 15 cm, the side length of the through hole is 6 cm to 12 cm, and the thickness of the bottom plate is 1 cm to 3 cm.

[0017] In a second aspect, the present invention discloses a packaging assembly comprising a plurality of protective members, wherein two adjacent protective members are connected, the protective members wrap around items to be packaged, and at least one of the protective members is provided with the force transmission structure of the first aspect.

[0018] In an optional embodiment of the present disclosure, a plurality of the force transfer structures are spliced ​​together to form the protective member.

[0019] In an optional embodiment of the present disclosure, a plurality of the protective members are connected to form the packaging assembly, and the packaging assembly has a plurality of surfaces. In two adjacent surfaces, the first vertices of the through holes of the force transfer structure are located in opposite directions of the same straight line.

[0020] In an optional embodiment of the present disclosure, the boundary line between two adjacent surfaces is straight or Z-shaped.

[0021] In an optional embodiment of the present disclosure, the force transfer structures are arranged in a matrix on the surface.

[0022] In an optional embodiment of the present disclosure, the through holes on two adjacent surfaces have different turning angles.

[0023] In an optional embodiment of the present disclosure, the plurality of protective members include a second protective member and a first protective member, the first protective member at least covers the side wall of the item to be packaged, the second protective member covers the front wall of the item to be packaged, and the first protective member has at least the force transmission structure with a different angle from that of the second protective member.

[0024] In an optional embodiment of the present disclosure, the surface includes a side surface and a front surface, one end of the second protective member is connected to one side of the first protective member, the end surface of the first protective member close to the second protective member and the outer surface of the second protective member form the front surface, and the side surface is arranged on the first protective member.

[0025] In an optional embodiment of the present disclosure, the packaging assembly further includes a support body, and the support body is packaged on the outer surface of the protective member.

[0026] In a third aspect, the present disclosure provides an electrical component, comprising an electrical device and the packaging component described in the second aspect, wherein the protective member is coated on an outer surface of the electrical device.

[0027] In a fourth aspect, the present disclosure provides a filter screen cover, on which the force transfer structure of the first aspect is provided.

[0028] In a fifth aspect, the present disclosure provides a household appliance, comprising the filter cover mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 shows a schematic structural diagram of a packaging assembly in the related art.

[0030] FIG2 shows a schematic diagram of a force transmission structure provided in an embodiment of the present application.

[0031] FIG3 is a schematic diagram showing different rotation angles of the force transmission structure provided by an embodiment of the present application.

[0032] FIG4 is a schematic diagram showing the band gap reversal characteristics formed by force transmission structures with different rotation angles.

[0033] FIG5 shows a schematic diagram of the connection of two force transmission structures with different rotation angles.

[0034] FIG. 6 is a schematic diagram showing a projected energy band of the force transmission structure shown in FIG. 5 .

[0035] FIG7 shows a schematic structural diagram of a packaging assembly provided in an embodiment of the present application.

[0036] FIG8 shows a schematic structural diagram of a protective member of a linear interface;

[0037] FIG9 shows a schematic structural diagram of a protective member of a Z-shaped interface;

[0038] FIG10 is a schematic structural diagram of the first protective member in FIG7 ;

[0039] FIG11 is a schematic structural diagram of the second protective member in FIG7 ;

[0040] FIG12 is a schematic diagram of the assembly of the first protective member and the second protective member in FIG7;

[0041] FIG. 13 is a schematic structural diagram of a packaging assembly having a support body.

[0042] Figure numerals: 100'-foam, 100-force transmission structure, 200-base plate, 201-second vertex, 300-through hole, 301-first vertex, 400-packaging component, 401-protective member, 4011-first protective member, 4012-second protective member, 4013-embedded groove, 4014-edge, 4015-first part of the through hole, 4016-second part of the through hole, 4017-weight reduction part, 500-support body, 501-opening, 600-product to be protected. DETAILED DESCRIPTION

[0043] The following disclosure will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0044] It should be noted that all directional indications in the embodiments of the present disclosure are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0045] In this disclosure, unless otherwise expressly specified or limited, the terms "connect," "fix," etc. should be understood in a broad sense. For example, "fix" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two elements or an interaction between two elements, unless otherwise expressly specified. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0046] In addition, in the present disclosure, descriptions such as "first" and "second" 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" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various implementation methods can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. 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 disclosure.

[0047] Ovens and other electrical appliances are subject to impact, vibration and other loads during handling and transportation. The packaging must protect ovens and other electrical appliances from damage to appearance and function.

[0048] Figure 1 is a schematic diagram of the structure of a packaging assembly currently under development by the applicant. Referring to Figure 1, the packaging assembly comprises two foams 100' disposed on opposite sides of the product to be protected. The two foams 100' are relatively separate and lack integration, resulting in a lack of stability. Furthermore, the two separate foams provide a limited cushioning protection area for the product, failing to provide comprehensive protection. Furthermore, the two separate foams 100' are secured to the product by an outer layer of corrugated paper or cardboard, which is large and expensive.

[0049] In recent years, topological insulators in condensed matter physics have been extensively studied, with the properties of electronic bands gradually extending from electronic systems to artificial crystals (metamaterials) such as photonic crystals and phononic crystals. Within this topological framework, some truly novel quantum physics effects, such as the quantum Hall effect, the quantum spin Hall effect, and the quantum valley Hall effect, have been gradually discovered and confirmed. Similar to electronic systems, topological classical wave systems also produce gapless edge states that propagate along the edges of materials. The existence and properties of these edge states are independent of the specific shape of the edge and are determined solely by the topological properties of the bulk energy bands. Consequently, they possess stable physical properties, enabling them to guide unidirectional wave propagation along the boundaries without backreflection and with defect immunity. The introduction of these effects can set new criteria for the design of topological metamaterials, laying the foundation for their applications in elastic wave manipulation, vibration isolation, filtering, and other applications.

[0050] The Hall effect was discovered by American physicist Edwin H. Hall in 1879. In 1980, German physicist von Klitzing discovered the integer quantum Hall effect: under low-temperature, high-magnetic-field conditions, the Hall resistance no longer exhibits a linear relationship with the magnetic field, but instead exhibits a series of quantized plateaus, where the resistance is h / (ne²). Acoustic or mechanical metamaterials that rely on the QHE often require active devices, such as gyroscopes, rotating fluids, or the application of external fields (such as magnetic fields), to disrupt time symmetry. However, this increases the complexity of the system, making QHE-based metamaterial structures difficult to implement in practical engineering applications.

[0051] In 2005, Kane and Zhang Shousheng independently discovered the QSHE based on graphene structures under zero magnetic field and proposed using the spin-Chern number to describe the topological properties of topological insulators. Topological metamaterials based on the QSHE effect require only passive devices, but often require complex geometric manipulation to generate double Dirac points in the dispersion curve. Recently, the valley degree of freedom of electrons has attracted increasing attention as a novel information transmission medium. Numerous valley transport properties, such as valley separation and the QVHE, have been theoretically predicted and experimentally observed. Metamaterial structures based on the QVHE rely on breaking the mirror symmetry of the structure to achieve topological properties and are relatively easy to achieve in the laboratory. The QVHE originates from the newly discovered valley degree of freedom of electrons in two-dimensional graphene. The valley degree of freedom is degenerate, marking extreme energy states but widely separated in momentum space. This large separation prevents scattering between valley degrees of freedom, allowing them to form robust edge modes with opposite directions at topological interfaces, similar to the spin degree of freedom of electrons. By utilizing this property, a new type of topological acoustic and mechanical metamaterial system is designed to achieve back-reflection-free and robust propagation of energy in topological waveguides with sharp bends.

[0052] Since the QSHE and QVHE effects lack external active elements and thus do not violate time symmetry, two symmetrical edge modes emerge, allowing both spin and valley states in opposite directions to be excited at the same frequency. However, because the two edge modes have opposite phases, if the excitation pattern couples with the amplitude and phase of a particular edge mode, a spin or valley state in a specific direction can be excited. This is the selective excitation of spin and valley states.

[0053] On the other hand, when the packaging assembly is dropped at a corner, the foam in the corners is prone to energy accumulation and stress concentration, leading to structural damage to the packaging, which in turn damages the protected product and causes additional losses. Strength analysis of the packaging assembly reveals that both the main body and the edges of the packaging assembly possess significant strength. In related art packaging assemblies, impact energy is propagated along the main body, requiring sufficient thickness to absorb the energy in order to protect the product, which increases the production cost of the packaging assembly.

[0054] Based on the above analysis, the present embodiment provides a force transmission structure 100, a packaging assembly 400, and an electrical assembly. The force transmission structure 100 is provided on both the packaging assembly 400 and the electrical assembly. This allows the elastic waves generated during a corner drop to fully propagate along the edges 4014, preventing energy accumulation near the corners that could cause structural damage or excessive elastic waves from propagating into the foam 100', causing damage to the product. This packaging design allows the packaging assembly 400 to be designed using extremely thin packaging cushioning materials, thereby reducing packaging material usage, shrinking packaging size, increasing container capacity, and lowering shipping costs.

[0055] Please refer to FIG. 2 . In the embodiment of the present application, the force transfer structure 100 includes: a bottom plate 200 provided with a polygonal through hole 300 .

[0056] The base plate 200 is made of an elastic metamaterial, specifically foam 100'. Triangular holes in the base plate 200 modulate the elastic waves of the base plate 200, allowing them to propagate across the base plate 200. This minimizes energy loss on the base plate 200, potentially damaging the force transfer structure 100. By incorporating the force transfer structure 100 into the packaging assembly 400, the packaging assembly 400 can be constructed using an extremely thin packaging cushioning material, thereby reducing packaging material usage, package size, and costs.

[0057] In some embodiments, the bottom plate 200 is hexagonal and the through hole 300 is triangular.

[0058] Among them, the base plate 200 is a regular hexagon, the through hole 300 is an equilateral triangle, the through hole 300 and the base plate 200 are coaxially arranged, and the triangle has a certain stability. Setting the through hole 300 into an equilateral triangle can improve the stability of the entire base plate 200 when transmitting elastic waves, and reduce damage to the force transmission structure 100.

[0059] Setting the bottom plate 200 to a regular hexagon can facilitate the splicing of multiple bottom plates 200 , so that multiple force transfer structures 100 can be spliced ​​to form a packaging assembly 400 .

[0060] In some embodiments, any vertex of the through hole 300 is defined as a first vertex 301 , and a line connecting a center point of the through hole 300 and the first vertex 301 is on a first straight line;

[0061] The bottom plate 200 corresponding to the through hole 300 has an edge close to the first vertex 301, the midpoint of the edge is defined as the second vertex 201, and the line connecting the center point of the through hole 300 and the second vertex 201 is on a second straight line;

[0062] The angle between the first straight line and the second straight line is defined as the rotation angle, and the angle of the rotation angle is between -30° and 30°. The area of ​​the equilateral triangle opening 501 on the bottom plate 200 can be increased as much as possible, which can reduce the amount of material used while increasing the transmission energy of the elastic wave.

[0063] The triangular through holes 300 are arranged in various ways on the hexagonal base plate 200 . In some embodiments, when the angle of the corner is between -30° and 30°, the three corners of the through holes 300 are respectively arranged corresponding to three sides of the base plate 200 .

[0064] Taking any corner of the through hole 300 as an example, this corner corresponds to one of the sides of the base plate 200 and is located at the midpoint of this side. The three sides of the through hole 300 are respectively parallel to the other three sides of the base plate 200. Under this condition, the angle can be considered to be 0°. When the angle is 0°, the area of ​​the equilateral triangle opening 501 on the base plate 200 can be increased as much as possible, which can reduce the amount of material used while increasing the transmitted energy of the elastic wave.

[0065] In some embodiments, the three corners of the through hole 300 are respectively arranged to correspond to three corners of the bottom plate 200 .

[0066] Any corner of the equilateral triangle-shaped through hole 300 corresponds to a corner of the base plate 200. Under these conditions, the angle can be considered to be -30° or 30°. Similarly, under the conditions of a -30° or 30° angle, the area of ​​the equilateral triangle-shaped opening 501 on the base plate 200 can be maximized, thereby reducing material usage while increasing the transmitted energy of the elastic wave.

[0067] In some embodiments, the distance between two opposite sides of the bottom plate 200 is 5 cm to 15 cm, the side length of the through hole 300 is 6 cm to 12 cm, and the thickness of the bottom plate 200 is 1 cm to 3 cm.

[0068] In order to explain the structure and principle of the force transmission structure 100, the following will be described in detail:

[0069] The base plate 200 of the embodiment of the present application can be an elastic metamaterial, with equivalent material parameters, elastic modulus, Poisson's ratio, lattice constant, plate thickness, and length of the side of an equilateral triangle.

[0070] In the embodiment of the present application, a through hole 300 in the shape of an equilateral triangle is provided on a base plate 200 in the shape of a regular hexagon, and the plate wave is modulated by adjusting the angle of the through hole 300 in the base plate 200 .

[0071] Specifically, combining Figures 3 and 4, when the corresponding corner of base plate 200 is rotated, the system exhibits symmetry, as shown in Figure 3b. According to group theory, the point group corresponding to the corner points of the Brillouin zone boundary in reciprocal space has a two-dimensional irreducible representation, resulting in the formation of linearly intersecting Dirac cones at points . As shown in Figure 4e, the intersection point degenerates to form a Dirac cone around a frequency of 340 Hz. The inset shows the first Brillouin zone in reciprocal space.

[0072] On the other hand, combining Figures 3 and 4, when the angle is rotated, there are two conditions that can satisfy the symmetry: (denoted as structure A) and (denoted as structure B). Figures 4d and 4f show the dispersion characteristics of the unit cell and the corresponding band gap flipping characteristics when one configuration is converted to another. Because the symmetry of the structure is destroyed, a complete band gap appears between the first and second band gaps, with a frequency range of 309Hz to 351Hz. Although the scattering curves of the two configurations of structure A and structure B are the same, their corresponding topological properties have changed. The transformation of the topological properties of the first and second band gaps is called band gap flipping. By describing the amplitude and phase of the mode at point K, it can be found that the mode has flipped.

[0073] The band gap flip phenomenon described above is analogous to the valley Hall effect. Furthermore, the valley Chern number can be calculated to quantitatively describe the topological phase transition. Integrating the Berry curvature over half the Brillouin zone yields the expression (Equation 1), which is: Where Ω(k) is the Berry curvature, which is expressed as formula 2), and formula 2) is: Here, in formula 2), i is an imaginary unit, cc represents a conjugate complex number, < · |·> represents the inner product, k=[k x ,k y ] is the Bloch wave vector, and ω u and ω v represents the natural frequency of the corresponding eigenvectors u and v. The valley Chern numbers of structures A and B at point K are ±1 / 2, and the valley state Chern numbers of the two structures are 1, indicating that topologically protected edge modes will appear at the interface between the two structures.

[0074] Elastic phononic crystals with opposite rotation angles belong to different topological valley phases. Structures A and B are spliced ​​in an ABA manner along the direction. The layout diagram is shown in Figure 6. In the actual calculation, there are 24 periodic units in the direction, and the two ends are set as continuous boundary conditions. The ABA structure thus formed has two different interfaces, AB and BA. The calculated projected energy bands are shown in Figure 7. There are two interface state dispersions in Figure 7, corresponding to the AB interface and the BA interface respectively. Both interface states have the characteristic of being gapless, that is, the dispersion runs through the band gap frequency range of the entire bulk energy band. It can be found that energy is concentrated at the interface position.

[0075] Based on the above situation, in this embodiment, a force transfer structure 100 with a topological structure is combined with packaging. Since the contact time between the corner and the ground is basically determined when the product falls, an elastic wave of a specific frequency will be generated. For the packaging structure, when a corner fall occurs, the energy is often concentrated at the corner position or transferred to the body of the packaging structure, so the foam 100' is often required to be thicker to protect the product from being damaged. Figure 7 is a structural schematic diagram of the packaging component 400 of the embodiment of the present application, which uses the foam 100' design of the above force transfer structure 100. The two sides of the edge are composed of opposite valley topological phases, and a topologically protected boundary state is formed at the interface, thereby guiding the energy at the corner position to propagate along the edge, avoiding excessive energy accumulation at the corner position, and preventing damage to the packaging structure.

[0076] In the embodiment of the present application, the packaging assembly 400 includes a plurality of protective members 401 , two adjacent protective members 401 are connected, the protective members 401 are covered on the items to be packaged, and at least one protective member 401 is provided with the above-mentioned force transmission structure 100 .

[0077] At least one protective member 401 is provided with the aforementioned force transfer structure 100. When the packaging assembly 400 and the packaged items collide or fall during transportation, energy can be transferred along the edges of the force transfer structure 100. This reduces damage to the packaging assembly 400, improves the protection of the items, and reduces costs.

[0078] In some embodiments, multiple force transmission structures 100 are spliced ​​to form the protective member 401. That is, multiple force transmission structures 100 are provided on the protective member 401, and the force transmission structures 100 may be provided on the entire protective member 401 or only on a portion of the protective member 401.

[0079] In some embodiments, a plurality of protective members 401 are connected to form a packaging assembly 400 , and the packaging assembly 400 has a plurality of surfaces. In two adjacent surfaces, the first vertices 301 of the through holes 300 of the force transfer structure 100 are located in opposite directions of the same straight line.

[0080] The fact that the first vertices 301 of the through-holes 300 of the force transmission structure 100 are located in opposite directions of the same straight line indicates that the topologies of the two adjacent protective elements 401 are opposite, forming a topologically protected boundary state at the interface, thereby guiding the energy at the corners to propagate along the edges, avoiding excessive energy accumulation at the corners and preventing damage to the packaging structure.

[0081] In some embodiments, the through holes 300 on two adjacent surfaces have different turning angles.

[0082] The force transfer structure 100 with opposite rotation angles belongs to different topological valley phases. Structure A and structure B are spliced ​​in an ABA manner along the direction. The layout diagram is shown in Figure 5. In the actual calculation, there are 24 periodic units in the direction, and the two ends are set as continuous boundary conditions. The ABA structure thus formed has two different interfaces, AB and BA. The calculated projected energy bands are shown in Figure 7. There are two interface state dispersions in Figure 6, corresponding to the AB interface and the BA interface, respectively. Both interface states have the characteristic of no band gap, that is, the dispersion runs through the band gap frequency range of the entire body energy band. It can be found that energy is concentrated at the interface position.

[0083] Based on the above analysis, the force transfer structure 100 of the embodiment of the present application includes more than two topological units, two adjacent topological units are connected, each topological unit includes multiple base plates 200, the arrangement direction of the base plates 200 in adjacent topological units is the same, and the rotation angles of the base plates 200 are different.

[0084] Preferably, the first vertices 301 of the through holes 300 of the bottom plates 200 in two adjacent topological units are located in opposite directions of the same straight line, that is, the angles of the through holes 300 of the bottom plates 200 in two adjacent topological units are symmetrically distributed. Of course, in other embodiments, the angles of the through holes 300 of the bottom plates 200 in two adjacent topological units may not be symmetrically distributed, which is not limited here.

[0085] In some embodiments, the boundary line between two adjacent surfaces is straight or zigzag.

[0086] The embodiment of the present application designs two types of force transfer structures 100, namely a linear interface (as shown in FIG8 ) or a Z-shaped interface (as shown in FIG9 ). As shown in FIG8 and FIG9 , the two sides of the interface are structure A and structure B respectively.

[0087] Combined with Figure 8, for a linear interface, the number of units can be [number missing]. A directional excitation is applied on one side of the interface, marked with a five-pointed star, while a low-reflection boundary condition is set on the other side, with an excitation frequency of 330 Hz. It can be seen that the topological edge states can guide wave propagation forward, with the energy being well localized at the interface, leaving little energy within the bulk structure, effectively protecting the bulk structure.

[0088] Referring to Figure 9, for a zigzag interface, the number of units can be [ 0.05 ], with z-direction excitation applied on the left side of the interface and a low-reflection boundary condition on the right side, while the excitation frequency remains constant. Unlike traditional waveguides, where elastic waves experience significant reflection upon encountering corners, topological edge states can propagate forward around sharp corners without backreflection, demonstrating the high controllability and robustness of topological edge states.

[0089] In some embodiments, the force transfer structures 100 are arranged in a matrix on a surface.

[0090] On the same surface, a plurality of force transmission structures 100 are arranged in a matrix on the protective member 401 , that is, a plurality of regular hexagonal force transmission structures 100 are spliced ​​along the side lengths.

[0091] Please refer to Figures 10 and 11. In some embodiments, the multiple protective members 401 include a second protective member 4012 and a first protective member 4011. The first protective member 4011 at least covers the side wall of the item to be packaged, and the second protective member 4012 covers the front wall of the item to be packaged. The first protective member 4011 has at least a force transmission structure 100 with a different angle from that of the second protective member 4012.

[0092] When the protective member 401 having the above-mentioned force transmission structure 100 is protecting a product, when the product falls, the energy generated by the contact between the corner of the protective member 401 and the ground can be transmitted along the side of the protective member 401 (i.e., the edge 4014), thereby avoiding excessive accumulation of energy at the corner of the protective member 401, preventing damage to the packaging component 400, and achieving the purpose of protecting the product.

[0093] There may be only one first protective member 4011. In this case, the first protective member 4011 is preferably located on the front of the product 600 to be protected. The force transmission structure 100 may be provided on only one side of the first protective member 4011, or on both sides of the first protective member 4011. Of course, there may be multiple first protective members 4011, and the force transmission structure 100 may be provided on one or both sides of the multiple first protective members 4011. The design may be adapted to the actual situation and is not limited here.

[0094] In some embodiments, the surface includes a side surface and a front surface, one end of the second protective member 4012 is connected to one side of the first protective member 4011, the end surface of the first protective member 4011 close to the second protective member 4012 forms a front surface with the outer surface of the second protective member 4012, and the side surface is arranged on the first protective member 4011.

[0095] The front part is also arranged on the second protective part 4012, that is, the second protective part 4012 is also provided with a force transmission structure 100 with the same angle as the first protective part 4011, and an edge 4014 is formed on the second protective part 4012, and the energy of the collision can be transmitted along the edge 4014 of the second protective part 4012.

[0096] Specifically, FIG10 is a schematic structural diagram of the first protective member 4011 in FIG7 . The first protective member 4011 in the embodiment of the present application is provided with the force transmission structure 100 on only one side. The through holes 300 of the force transmission structure 100 on the first protective member 4011 may be provided in two rows and multiple columns, with two vertices of the through holes 300 of the force transmission structure 100 on the first protective member 4011 being located in the vertical direction, and the other vertex of the through hole 300 being closer to the side of the protective member 401 relative to the two vertices of the through hole 300, that is, the two vertices located in the same column are located in the vertical direction, and the other vertex of the through hole 300 located in the same row is located in the horizontal direction.

[0097] Of course, in other embodiments, the through holes 300 of the force transfer structure 100 on the first side of the first protective member 4011 may also be provided with other arrangement numbers, which is not limited here.

[0098] 7 and 10 , in an embodiment of the present application, an embedding groove 4013 may be provided on the inner side of the first protective member 4011 , and part of the surface of the product 600 to be protected may protrude to be embedded in the embedding groove 4013 , so that the first protective member 4011 may be assembled on the surface of the product 600 to be protected.

[0099] Figure 11 is a schematic diagram of the structure of the second protective member 4012 in Figure 7, and Figure 12 is a schematic diagram of the assembly of the first protective member 4011 and the second protective member 4012 in Figure 7. In conjunction with Figures 11 and 12, in the embodiment of the present application, the side of the first protective member 4011 is provided with an edge 4014 extending toward the second protective member 4012. This edge 4014 is connected to the side of the second protective member 4012 to wrap around a portion of the outer surface of the product 600 to be protected. The connection between the edge 4014 and the side of the second protective member 4012 is also provided with the aforementioned force transmission structure 100. In this way, opposite valley topological phases can be present on both sides of the side of the first protective member 4011 (at the edge 4014), thereby forming a topologically protected boundary state at the interface, thereby guiding energy at the corner position to propagate along the edge, avoiding excessive energy accumulation at the corner position and preventing damage to the packaging structure.

[0100] Specifically, the through holes 300 of the force transmission structure 100 on the edge 4014 may be arranged in a row and multiple columns, where two vertices of the through holes 300 of the force transmission structure 100 are located in the vertical direction, and the other vertex of the through hole 300 is close to the side of the protective member 401 relative to the two vertices of the through hole 300, that is, the two vertices located in the same column are located in the vertical direction, and the other vertex of the through hole 300 located in the same row is located in the horizontal direction.

[0101] Furthermore, in the embodiment of the present application, the side of the edge 4014 facing the second protective member 4012 is provided with a first portion of the through hole 300, and the side of the second protective member 4012 facing the edge 4014 is provided with a second portion of the through hole 300. When the first protective member 4011 and the second protective member 4012 are assembled, the first portion of the through hole 300 and the second portion of the through hole 300 are spliced ​​together to form the through hole 300. In other words, the through hole 300 on the edge 4014 is formed by splicing the edge 4014 and the side of the second protective member 4012. Of course, in other embodiments, the through hole 300 can also be directly provided on the edge 4014.

[0102] 10 , in the embodiment of the present application, the edge 4014 and the side of the second protective member 4012 are detachably connected, and may be connected by plugging or / and docking, etc., which is not specifically limited here.

[0103] Furthermore, the above-mentioned through holes 300 may also be provided on the side of the second protective member 4012. The arrangement of the through holes 300 of the second protective member 4012 is consistent with the arrangement of the through holes 300 on the edge 4014, but the through holes 300 on the second protective member 4012 and the through holes 300 on the edge 4014 are preferably staggered to improve the balance of energy transfer. Of course, the through holes 300 on the second protective member 4012 may also be arranged flush with the through holes 300 on the edge 4014, and there is no restriction here.

[0104] In the embodiment of the present application, other protective parts 401 can also be connected in an embedded manner, that is, one protective part 401 is embedded with two adjacent protective parts 401 and supports the two adjacent protective parts 401, thereby forming an integral protective structure. During transportation, if a protective part 401 is subjected to impact force, the impact force can be dispersed to other parts through the remaining protective parts 401, thereby reducing the impact force on the protected product 600. If a protective part 401 is broken by the impact force, the remaining protective parts 401 will support the broken part to prevent the broken part from shifting, thereby improving the comprehensive protection capability of the packaging component 400, and has good practical value.

[0105] The material of the protective member 401 in the embodiment of the present application can be selected from the more common foam 100' on the market, wherein both sides of each protective member 401 can be embedded with the side edges of two adjacent protective members 401. Since the side edges of the protective members 401 are embedded with each other, the protective members 401 can be utilized to the greatest extent to form a protective layer that matches at least part of the outer surface of the product 600 to be protected, thereby saving costs.

[0106] Of course, in other embodiments, some adjacent protective elements 401 may not be joined edge-to-edge, that is, the side of one protective element 401 may be joined to the center of another protective element 401. Alternatively, a matching protective layer may be constructed that covers at least a portion of the outer surface of the product 600 to be protected. This solution may result in a waste of cost due to the presence of unnecessary protective elements 401, but it does extend the distance between external collision objects and the product 600 to be protected, which is more conducive to protecting the product 600.

[0107] Depending on the appearance of the product 600 to be protected, the protective member 401 can be wrapped around a portion of the outer surface of the product 600 to be protected, or it can be wrapped around the entire outer surface of the product 600 to be protected. The protective member 401 can be set according to the specific shape of the product 600 to be protected. For example, if part of the outer surface of the product 600 to be protected (such as the back, top, or bottom, etc.) does not require special protection, the protective member 401 can be omitted from covering these outer surfaces that do not require special protection. This can also save costs while still achieving protection. If the outer surface of the product 600 to be protected requires full protection, the protective member 401 must be fully covered on these outer surfaces that do not require special protection to effectively protect the product 600.

[0108] The product to be protected 600 in the embodiment of the present application may be provided with a surface, and accordingly, a plurality of protective members 401 may be surrounded by a protective cavity that matches the peripheral side surface and is used to accommodate the peripheral side surface, that is, the protective member 401 may only be covered on the surface of the product to be protected 600 to form a protective layer that only protects the peripheral side surface of the product to be protected 600.

[0109] Of course, the product to be protected 600 can also be provided with a top connecting the top of the peripheral side surface and a bottom connecting the bottom of the peripheral side surface. Accordingly, multiple protective parts 401 can form a protective cavity that matches the outer surface of the product to be protected 600, that is, the protective body can be covered on the entire outer surface of the product to be protected 600 to form a protective layer that completely protects the outer surface of the product to be protected 600.

[0110] The interlocking of the protective elements 401 shown in the embodiments of this application refers to the ability of adjacent protective elements 401 to be joined together into a removable, integrated structure through insertion, mortise and tenon connections, or other methods. When the assembled protective elements 401 form a single structure, they cover the outer surface of the product 600 to be protected. When the integrated structure is disassembled into the individual protective elements 401, the product 600 to be protected can be quickly and easily removed.

[0111] Specifically, the two sides of the protective member 401 can be connected to the side edges of the adjacent protective member 401 by mortise and tenon, so as to facilitate the assembly and disassembly of the protective member 401 and ensure better loading and unloading efficiency of the product 600 to be protected.

[0112] Each protective member 401 or part of the protective member 401 in the embodiment of the present application may be provided with a weight-reducing portion 4017 , which may be groove-shaped or hole-shaped, to further reduce the amount of protective member 401 used and reduce the amount of packaging material used.

[0113] When transporting the product 600 to be protected, each protective member 401 can be first assembled on the outer peripheral surface to be protected, and then the protective members 401 can be connected to form a whole. In addition, the inner side of each protective member 401 in the embodiment of the present application can match the outer shape of the portion of the product 600 to be protected, thereby effectively protecting the product 600 to be protected. The outer side of each protective member 401 preferably forms a relatively smooth surface. The outer side of the protective member 401 can be provided with an operating portion for gripping, etc. The operating portion can be in the form of a hole or a groove, which is not limited here.

[0114] The product to be protected 600 may be an electrical appliance such as an oven, a refrigerator, or a washing machine, or may be an industrial product such as porcelain, and is not limited here.

[0115] Taking an oven as an example, an oven is typically hexahedral, meaning it includes four circumferentially connected side surfaces, a top portion connecting the top ends of the side surfaces, and a bottom portion connecting the bottom ends of the side surfaces. Based on this oven, the packaging assembly 400 of the present embodiment includes four opposing protective members 401, which are connected to form a vertically continuous box structure that covers the outer circumference of the product 600 to be protected.

[0116] Figure 13 is a schematic structural diagram of a packaging assembly 400 having a support body 500. Referring to Figure 13 , the packaging assembly 400 of the embodiment of the present application may further include the support body 500, wherein the support body 500 is provided with a receiving cavity for receiving a protective body. When the protective body is received in the receiving cavity, the protective body contacts the inner wall of the support body 500.

[0117] A packaging component 400 according to an embodiment of the present application includes a support body 500 for accommodating the above-mentioned protective member 401. During transportation, the support body 500 arranged on the outside of the protective member 401 can protect the protective member 401 and reduce the impact force on the protective member 401, so as to reduce the phenomenon of the protective member 401 breaking. If one of the protective members 401 breaks, the support body 500 arranged on the outside of the protective member 401 can also support the broken part of the protective member 401 to prevent the broken part from shifting, so as to maximize the comprehensive protection capability of the packaging component 400 and have good practical value.

[0118] In an embodiment of the present application, the external support body 500 may include corrugated paper or a cardboard box, which is wrapped around the outer surface of the protective member 401 to provide preliminary protection and provide assembly space for the integral protective member 401 to support the integral protective member 401 and avoid damage to the protective member 401 caused by collision and splitting, thereby providing good protection for the protected product 600.

[0119] When transporting the product 600 to be protected, the protective member 401 can be first assembled on the outer peripheral surface of the product 600 to be protected, and then the support body 500 can be placed on the protective member 401. In addition, the inner side surface of each protective member 401 in the embodiment of the present application matches the outer shape of the portion of the product 600 to be protected, and the outer side surface of each protective member 401 is in planar contact with the inner side of the accommodating cavity. When the product 600 to be protected is assembled in the packaging assembly 400, there can be no gap between the support body 500 and the protective member 401, and between the protective member 401 and the product 600 to be protected, thereby providing a stable protection for the product 600 to be protected and further improving the protective effect of the product 600 to be protected.

[0120] In conjunction with Figure 13, the accommodating cavity in the embodiment of the present application may be provided with an opening 501 for accommodating the protective part 401, that is, after the product to be protected 600 is assembled into the support body 500, the support body 500 equipped with the product to be protected 600 can enter the accommodating cavity of the support body 500 from the opening 501, and then the opening 501 of the support body 500 can be closed.

[0121] In some embodiments, the opening 501 has an area no greater than the circumferential cross-sectional area of ​​the protective member 401, so that when the protective member 401 is accommodated in the aforementioned accommodation cavity, the protective member 401 can expand the accommodation cavity and closely fit the inner wall of the support body 500. Specifically, when the protective member 401 is accommodated in the aforementioned accommodation cavity, the negative gap between the protective member 401 and the support body 500 can further improve the integrity of the protective member 401 and minimize the occurrence of ineffective protection of the product 600 due to the protective member 401 becoming loose during transportation.

[0122] In the embodiment of the present application, when the protective member 401 is accommodated in the above-mentioned accommodating cavity, the gap between the protective member 401 and the support body 500 is not less than -2 mm, that is, along the same direction perpendicular to the center line of the accommodating cavity, the difference between the size of the protective member 401 and the size of the accommodating cavity is not more than 4 mm, so as to facilitate the assembly of the protective member 401 in the accommodating cavity of the support body 500 while improving the firmness of the protective member 401 in the accommodating cavity of the support body 500.

[0123] A packaging component 400 according to an embodiment of the present application includes a support body 500 for accommodating the above-mentioned protective member 401. During transportation, the support body 500 arranged on the outside of the protective member 401 can protect the protective member 401 and reduce the impact force on the protective member 401, so as to reduce the phenomenon of the protective member 401 breaking. If one of the protective members 401 breaks, the support body 500 arranged on the outside of the protective member 401 can also support the broken part of the protective member 401 to prevent the broken part from shifting, so as to maximize the comprehensive protection capability of the packaging component 400 and have good practical value.

[0124] The foam 100' used in the packaging assembly 400 of the related art is thick, resulting in a correspondingly large outer packaging size. Taking an oven as an example, the ocean shipping cost of a single oven in the related art is as high as 355 yuan. However, using the packaging assembly 400 of the embodiment of this application, the shipping capacity can be increased from 216 ovens to 304 ovens, reducing the ocean shipping cost by 103 yuan per oven. This significantly reduces production and transportation costs, demonstrating excellent practical and economic value.

[0125] Based on the above-mentioned packaging component 400 , an embodiment of the present application further provides an electrical component, which includes an electrical appliance and the above-mentioned packaging component 400 , and the electrical appliance is wrapped in a protective component 401 of the packaging component 400 .

[0126] The electrical component having the above-mentioned packaging component 400 can, to a certain extent, avoid excessive energy accumulation at the corners of the protective part 401, prevent damage to the packaging component 400, and achieve the purpose of protecting the product. At the same time, due to the setting of the through hole 300300, the material usage of the corresponding protective part 401 can be reduced to improve the lightweight of the packaging component 400, further reduce the packaging cost, and has good practicality and economy.

[0127] Furthermore, in the related art, some home appliances (such as air conditioners) are equipped with filter screens to filter the fresh air introduced by the fan. However, most air conditioners are placed vertically, and due to limited installation space, the number of air conditioners installed is relatively small. Based on this, the embodiment of the present application stacks multiple air conditioners with their filter screens facing upwards. Since the lower air conditioner needs to support the upper air conditioner, the filter screens need to have a high support strength, and the existing filter screens cannot meet this usage requirement.

[0128] Based on this, the embodiment of the present application applies the above-mentioned force transfer structure 100 to the filter screen cover, that is, the above-mentioned force transfer structure 100 is provided on the side of the frame of the filter screen cover. The filter screen cover with the above-mentioned force transfer structure 100 can disperse the force acting on the filter screen cover so that the filter screen cover has better supporting strength, thereby allowing the air conditioner to be installed in a stacked manner, so as to install more air conditioners in a limited space, which has good practicality.

[0129] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

Claims

1. A force transmission structure comprising: A bottom plate (200) is provided with a polygonal through hole (300).

2. The force transmission structure according to claim 1, wherein: The bottom plate (200) is hexagonal, and the through hole (300) is triangular.

3. The force transmission structure according to claim 2, wherein: The three corners of the through hole (300) are respectively arranged corresponding to three sides of the bottom plate (200).

4. The force transmission structure according to claim 2, wherein: The three corners of the through hole (300) are respectively arranged corresponding to three corners of the bottom plate (200).

5. The force transmission structure according to claim 2, wherein: Any vertex of the through hole (300) is defined as a first vertex (301), and a line connecting a center point of the through hole (300) and the first vertex (301) is located on a first straight line; The bottom plate (200) corresponding to the through hole (300) has an edge close to the first vertex (301), the midpoint of the edge is defined as the second vertex (201), and a line connecting the center point of the through hole (300) and the second vertex (201) is located on a second straight line; The angle between the first straight line and the second straight line is defined as a rotation angle, and the angle of the rotation angle is between -30° and 30°.

6. The force transmission structure according to claim 2, wherein: The distance between two opposite sides of the bottom plate (200) is 5 cm to 15 cm, the side length of the through hole (300) is 6 cm to 12 cm, and the thickness of the bottom plate (200) is 1 cm to 3 cm.

7. A packaging component, comprising a plurality of protective members (401), wherein two adjacent protective members (401) are connected, the protective members (401) are wrapped around the items to be packaged, and at least one of the protective members (401) is provided with a force transmission structure (100) as described in any one of claims 1 to 6.

8. The packaging assembly according to claim 7, wherein: A plurality of the force transmission structures (100) are spliced ​​together to form the protective member (401).

9. The packaging assembly according to claim 7, wherein: A plurality of the protective members (401) are connected to form the packaging assembly (400), and the packaging assembly (400) has a plurality of surfaces. In two adjacent surfaces, the first vertices (301) of the through holes (300) of the force transfer structure (100) are located in opposite directions of the same straight line.

10. The packaging assembly according to claim 9, wherein: The boundary line between two adjacent surfaces is straight or Z-shaped.

11. The packaging assembly according to claim 9, wherein: The force transmission structures (100) are arranged in a matrix on the surface.

12. The packaging assembly according to claim 9, wherein: The through holes (300) on two adjacent surfaces have different turning angles.

13. The packaging assembly according to claim 9, wherein: The plurality of protective members (401) include a first protective member (4011) and a second protective member (4012), wherein the first protective member (4011) at least covers the side wall of the article to be packaged, and the second protective member (4012) covers the front wall of the article to be packaged, and the first protective member (4011) at least has the force transmission structure (100) having a different rotation angle from that of the second protective member (4012).

14. The packaging assembly according to claim 13, wherein: The surface includes a side surface and a front surface, one end of the second protective member (4012) is connected to one side of the first protective member (4011), the end surface of the first protective member (4011) close to the second protective member (4012) and the outer surface of the second protective member (4012) form the front surface, and the side surface is arranged on the first protective member (4011).

15. The packaging assembly according to any one of claims 7 to 13, wherein: The packaging assembly (400) further includes a support body (500), and the support body (500) is packaged on the outer surface of the protective member (401).

16. An electrical component, comprising an electrical device and the packaging component (400) according to claim 15, wherein the protective member (401) is coated on the outer surface of the electrical device.

17. A filter screen cover, on which the force transmission structure (100) according to any one of claims 1 to 6 is provided.

18. A household appliance comprising the filter cover according to claim 17.

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