WO2024037584A1 - Structure de transfert de force, ensemble d'emballage, ensemble appareil électrique, couvercle d'écran de filtre et appareil électrique - Google Patents

Structure de transfert de force, ensemble d'emballage, ensemble appareil électrique, couvercle d'écran de filtre et appareil électrique Download PDF

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Publication number
WO2024037584A1
WO2024037584A1 PCT/CN2023/113513 CN2023113513W WO2024037584A1 WO 2024037584 A1 WO2024037584 A1 WO 2024037584A1 CN 2023113513 W CN2023113513 W CN 2023113513W WO 2024037584 A1 WO2024037584 A1 WO 2024037584A1
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WO
WIPO (PCT)
Prior art keywords
force transmission
protective
transmission structure
coupling
packaging
Prior art date
Application number
PCT/CN2023/113513
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English (en)
Chinese (zh)
Inventor
吴迎
钟磊
Original Assignee
广东美的白色家电技术创新中心有限公司
美的集团股份有限公司
广东美的制冷设备有限公司
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Application filed by 广东美的白色家电技术创新中心有限公司, 美的集团股份有限公司, 广东美的制冷设备有限公司 filed Critical 广东美的白色家电技术创新中心有限公司
Publication of WO2024037584A1 publication Critical patent/WO2024037584A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/107—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using blocks of shock-absorbing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/68—Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members

Definitions

  • the present disclosure belongs to the field of electrical equipment, and specifically relates to a force transmission structure, packaging components, electrical components, filter covers and electrical equipment.
  • Packaging components are used to package the electrical equipment to reduce the impact and vibration on the electrical equipment during handling and transportation. Possibility of damage.
  • Most packaging components use corrugated cartons and foam structures. The foam structure is placed in the corrugated carton to form a packaging component to wrap and cover the outer peripheral surface of the electrical equipment to protect the electrical equipment.
  • Packaging components will also withstand shock, vibration and other loads in the process of protecting electrical equipment. When loads such as impact and vibration accumulate, it is easy to cause damage to packaging components and fail to protect electrical equipment.
  • the present disclosure aims to solve, at least to a certain extent, relatively costly technical problems. To this end, the present disclosure provides a force transmission structure, packaging components, electrical components, filter covers and electrical equipment.
  • a force transmission structure including: two bodies; two mass blocks, the two mass blocks are respectively protruding on the two bodies; and a coupling piece connecting the two bodies. said ontology.
  • a packaging assembly including a plurality of protective members, two adjacent protective members are connected, the protective member covers the outer surface of the item to be packaged, and at least one of the protective members is
  • the force transmission structure is provided with the components.
  • an electrical component including an electrical device and the packaging component, and a plurality of the protective pieces is wrapped around the outer surface of the electrical device.
  • a filter cover is provided, the filter cover being provided with the above-mentioned force transmission structure.
  • an electrical device including the filter cover.
  • Figure 1 shows a schematic structural diagram of a packaging component in the related art.
  • FIG. 2 shows a schematic structural diagram of a force transmission structure from a first perspective according to some embodiments of the present disclosure.
  • FIG. 3 shows a schematic structural diagram of a force transmission structure from a second perspective according to some embodiments of the present disclosure.
  • Figure 4 shows a schematic structural diagram of a mass block and a body of a force transmission structure according to some embodiments of the present disclosure.
  • FIG. 5 shows a schematic diagram of the body dispersion of the structure in FIG. 4 .
  • FIG. 6 shows a schematic diagram of the volume dispersion of the force transmission structure in FIGS. 2 and 3 .
  • FIG. 7 shows a schematic diagram of the experimental results of the elastic edge state of the structure in FIG. 4 .
  • Figure 8 shows a schematic diagram of the experimental results of the elastic edge state of the force transmission structure in Figures 2 and 3.
  • Figure 9 shows a schematic diagram of the spiral edge state of the force transmission structure in Figures 2 and 3 at different times.
  • Figure 10 shows a schematic diagram of the spiral edge state of the force transmission structure in Figures 2 and 3 at different times.
  • Figure 11 shows a schematic representation of a sample with defects.
  • FIG. 12 shows a schematic diagram of the transmission curve of elastic waves at the edge of the sample with defects in FIG. 11 .
  • Figure 13 shows a schematic structural diagram of a packaging assembly according to some embodiments of the present disclosure.
  • FIG. 14 shows a schematic structural view of the first protective member in FIG. 13 .
  • FIG. 15 shows a schematic structural view of the second protective member in FIG. 13 .
  • Figure 16 shows a schematic diagram of a packaging assembly with two different rotation directions according to some embodiments of the present disclosure.
  • Figure 17 shows the variation curve of the energy from 2 to 4 in Figure 16 as a function of sample height.
  • FIG. 18 shows the propagation path of the elastic wave in FIG. 16 .
  • Figure 19 is a schematic structural diagram of a packaging assembly with a support body.
  • connection can be a fixed connection, a detachable connection, or an integral body; it can It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise clearly limited.
  • fixing can be a fixed connection, a detachable connection, or an integral body; it can It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise clearly limited.
  • Packaging components are used to package the electrical equipment to reduce the impact and vibration on the electrical equipment during handling and transportation. Possibility of damage.
  • the packaging structure of packaging components mostly uses corrugated cartons and foam structures. The foam structure is placed in the corrugated carton to form a packaging structure to wrap and cover the outer peripheral surface of the electrical equipment to protect the electrical equipment. In the process of protecting electrical equipment, packaging structures will also withstand loads such as shock and vibration. When loads such as impact and vibration accumulate, it is easy to cause damage to the packaging structure and fail to protect electrical equipment.
  • Ovens and other electrical equipment are subject to loads such as shock and vibration during handling and transportation.
  • Packaging components must protect ovens and other electrical equipment from appearance and functional damage.
  • FIG 1 is a schematic structural diagram of a packaging component in the related technology involved in the inventor's research and development process.
  • the packaging component in the related art includes two foams 100' arranged on opposite sides of the product 700 to be protected.
  • the two foams 100' are relatively separated and there is no formation between the two foams 100'. Integrated, it has no stability, and the two separated foams 100' provide a limited buffer protection area for the product and cannot form a comprehensive protection.
  • the fixation between the two separate foams 100' and the product 700 to be protected relies on corrugated or cartons wrapped outside the foam 100'. The size of corrugated and cartons is large and the cost is high.
  • FIG. 2 shows a structural schematic diagram of a force transmission structure according to some embodiments of the present disclosure from a first perspective.
  • FIG. 3 shows a second perspective view of a force transmission structure according to some embodiments of the present disclosure.
  • the embodiment of the present disclosure provides a force transmission structure 10, which can be applied to the packaging assembly 500, and can also be applied to a filter cover or an electrical device with a filter cover.
  • the force transmission structure 10 provided in some embodiments is protected from damage as much as possible when the electrical equipment is impacted or vibrated during handling or transportation, thereby improving protection capabilities and reducing costs.
  • the force transmission structure 10 includes: two bodies 200, two mass blocks 300 and a coupling 400.
  • the two mass blocks 300 are respectively protruded on the two bodies 200; the coupling 400 connects the two bodies 200. .
  • Placing the mass 300 on the body 200 can modulate the elastic waves generated by the force transmission structure 10 when it is subjected to loads such as impact and vibration.
  • the two bodies 200 are connected through two couplings 400.
  • the two mass blocks 300 are respectively convex. It is provided on two bodies 200, and the bodies 200 are connected through coupling pieces 400, so that the two bodies 200 are spaced apart.
  • the gap between the two bodies 200 reserves space for the transmission of elastic waves, which enables the elastic waves to pass through the force transmission structure 10 when the electrical equipment is subjected to impact and vibration during handling or transportation. It is transmitted upward to prevent damage as much as possible, thereby improving the protection capability and reducing damage to the force transmission structure 10 .
  • the mass block 300 can strengthen the body 200, so when the elastic wave is transmitted on the body 200, the possibility of damage to the body 200 is reduced. Since the mass block 300 is protruded on the body 200, compared with directly increasing the thickness of the body 200, the material used can be reduced and the cost can be reduced. That is to say, the force transmission structure provided by the present disclosure can improve the protection capability while reducing the cost.
  • the body 200, the mass 300 and the coupling 400 may be made of elastic metamaterial.
  • the superelastic material can be a foam.
  • the coupling member 400 may include a plurality of coupling columns 401, each coupling column 401 is connected to two bodies 200 respectively, and each coupling column 401 is arranged at an angle.
  • the two mass blocks 300 are arranged opposite to each other, that is, for the same body 200 , the mass block 300 and the coupling column 401 are respectively arranged on both sides of the body 200 . That is, for the overall force transmission structure 10, the two mass blocks 300 are arranged on the outside, and the coupling column 401 is arranged on the inside.
  • the mass block 300 can be arranged in the center of the body 200.
  • the mass block 300 can be arranged symmetrically with the center plane between the two bodies 200, and the coupling piece 400 is also arranged corresponding to the mass block 300.
  • the coupling piece 400 is disposed between the two corresponding masses 300 .
  • mass blocks 300 on the opposite sides of the two bodies 200 can also be arranged in a staggered manner, which is not limited here.
  • the plurality of coupling posts 401 are all inclined around the same clockwise direction.
  • the force transmission structure 10 may be a topological structure, and the tilt direction of the plurality of coupling columns 401 may also be a topological phase of the topological structure.
  • the plurality of coupling posts 401 are all inclined in the same clockwise direction, and it can be considered that the plurality of coupling posts 401 are generally arranged in a spiral shape.
  • the projections of the plurality of coupling columns 401 on any body 200 are polygons.
  • the body 200 may be rectangular, and two bodies 200 are overlapped. There may be four coupling posts 401 . If there are four coupling posts 401 , the four coupling posts 401 are respectively disposed near the four corners of the body 200 and are inclined toward the same clockwise direction, that is, relative to the formation of the body 200 . The directions of the two sides of the corner are at a certain angle, and are tilted at a certain angle relative to the vertical direction perpendicular to the side of the body 200 on which the coupling columns 401 are provided, so that the projection of the four coupling columns 401 on any one body 200 is a quadrilateral.
  • both ends of the coupling column 401 are connected to the two bodies 200 respectively.
  • One end of the coupling column 401 is connected to one of the two bodies 200, and the other end is connected to the two bodies 200.
  • the projection of one end of the coupling column 401 and the connection point of one body 200 of the two bodies 200 on the other body 200 coincides with the connection point of the other coupling piece 400 and the other body 200, In this way, the projection of the coupling column 401 on each body 200 has a closed shape, which can improve the stability of the entire force transmission structure 10 .
  • the coupling post 401 is cylindrical, and the diameter of the coupling post 401 is 0.5 mm to 1.5 mm.
  • the distance between the connection points of two non-adjacent coupling posts 401 and the body 200 is 4 mm to 8 mm.
  • the projection of the coupling pillar 401 on any one body 200 is a rectangle. If there are four coupling pillars 401, the projection of the four coupling pillars 401 on any one body 200 is a rectangle. Two non-adjacent coupling pillars 401 are different from the body.
  • the spacing distance between the connection points 200 is the spacing distance between the two coupling posts 401 arranged relatively.
  • the spacing distance between any two non-adjacent coupling columns 401 is 4 mm to 8 mm, which can increase the width of the elastic wave transmission band while connecting the two bodies 200 .
  • the mass block 300 has a connecting surface
  • the body 200 has a mounting surface
  • the connecting surface is connected to the mounting surface
  • the area of the connecting surface is greater than or equal to one-third of the area of the mounting surface.
  • the body 200 can be rectangular, and the mass block 300 can also be rectangular.
  • the mass block 300 is protruding on the body 200.
  • the area of the connection surface is greater than or equal to one-third of the area of the installation surface, which can ensure the connection between the mass block 300 and the body 200. contact area to ensure the strength of the entire force transmission structure 10.
  • the mass block 300 and the body 200 are disposed in an offset manner, that is, a vertex of the mass block 300 is disposed adjacent to an edge of the body 200 .
  • the thickness of mass 300 is greater than or equal to the thickness of body 200 .
  • the mass block 300 is protruding on the body 200, and the projection of the mass block 300 on the body 200 can completely fall on the body 200.
  • the thickness of the mass block 300 is greater than the thickness of the body 200, so that the mass block 300 can strengthen the body 200. In the elastic wave During the transmission process on the force transmission structure 10 , the possibility of damage to the force transmission structure 10 can be reduced.
  • the separation distance between the two bodies 200 may be 2 mm-5 mm
  • the thickness of the body 200 may be 0.5 mm-2 mm
  • the thickness of the mass block 300 may be 2 mm-6 mm.
  • the actual length of the coupling column 401 should be greater than the separation distance between the two bodies 200 .
  • the distance between the two bodies 200 can reserve the movement space of the two bodies 200 under the influence of the elastic waves, so that the force transmission structure 10 can smoothly transmit the elastic waves.
  • the body 200 may be rectangular, and the side length of the body 200 may be 8 mm-12 mm.
  • the mass block 300 may be rectangular, and the side length of the mass block 300 may be 5 mm-10 mm.
  • Figure 4 shows a schematic structural diagram of a mass block and a body of a force transmission structure according to some embodiments of the present disclosure.
  • the force transmission structure 10 shown in FIG. 4 is provided with a mass block 300 on the body 200 to achieve modulation of elastic waves and form an energy band structure.
  • a double degeneracy point at point M point M is a vertex in the square lattice.
  • This degeneracy point is a typical quadratic Dirac point (in the energy band structure, there are upper and lower cone structures with linear dispersion relationships at the high symmetry points at the Brillouin zone boundary.
  • the vertices of these cone structures are called It is a Dirac point, which is characterized by quadratic dispersion with opposite curvature, and the existence of a 2 ⁇ Berry phase around the point, where the Berry phase refers to a complex vector moving back to the starting point along a path in a parameter space.
  • the global phase evolution of structure it is difficult to open the band gap at point M by breaking parity symmetry, and breaking time-reversal symmetry requires active devices, which brings challenges to the manufacturing of samples.
  • the force transmission structure 10 shown in Figures 2 and 3 introduces interlayer coupling (coupling element 400) between two identical single layers of elastic metamaterials.
  • the double-layer elastic metamaterial has quadratic degeneracy at point M.
  • four tilted coupling pillars 401 are introduced to achieve chiral interlayer coupling, thereby breaking the parity symmetry. Its topological properties are thoroughly described by deriving the effective Hamiltonian around point M from perturbation theory by k ⁇ p.
  • the perturbation Hamiltonian is consistent with the symmetry of the system and can describe the band structure of the double-layer elastic metamaterial.
  • the Hamiltonian describes the situation of a single layer.
  • q 0 0.38Hz 2
  • q 1 1.26Hz 2
  • q 2 1.39Hz 2 .
  • FIG. 5 shows a schematic diagram of the body dispersion of the structure in FIG. 4
  • FIG. 6 shows a schematic diagram of the volume dispersion of the force transmission structure in FIGS. 2 and 3 .
  • the vertical axis is frequency
  • the horizontal axis is the wave vector.
  • a vertex in the square lattice, the ⁇ point represents (k x , k y ) (0,0), and a is the side length of the body 200.
  • the weight represented by the fitted dispersion curve can be compared with the corresponding weight scale.
  • the fitted dispersion curve is shown in Figure 5 and the two parabolic solid lines in Figure 6. It can be seen that the fitted curve and the calculated results are in good consistency.
  • the last term in the formula represents the coupling between the interlayer pseudospin and the single-layer eigenstate, which will produce artificial spin-orbit coupling of the double-layer elastic metamaterial and create a forbidden band at point M.
  • eta 1.39Hz 2 .
  • the values of q i and eta are determined, and the fitting curve determined by the formula agrees well with the dispersion curve of the double-layer elastic metamaterial (open circle).
  • the color in the dispersion represents the proportion of out-of-plane modes to the total displacement. It can be seen that near point M, the in-plane mode and the out-of-plane mode are mixed with each other. However, the in-plane mode is dominant near the ⁇ point and will not be randomly excited. This characteristic allows the inventor to characterize topological properties by measuring out-of-plane modes in experiments, while in-plane modes far away from point M will be automatically shielded.
  • the geometric parameters of the volume dispersion simulated in Figures 5 and 6 are as follows: the side length of the body 200 of the unit cell, the thickness of the body 200, the length and height of the mass block 300, the interlayer distance between the two bodies 200, the coupling column 401 diameter, and the spacing between two coupling posts 401 on the same side.
  • the elastic waves in the double-layer elastic metamaterial have vector characteristics, so the topological properties of the structure cannot be characterized only through out-of-plane modes, but two in-plane modes need to be included. This fully vector property is necessary for formulas to describe the topological properties of structures.
  • the Hamiltonian of the system becomes a block diagonal matrix
  • the block matrix Hamiltonian representing pseudospin up/down.
  • the non-trivial topological properties of double-layer elastic metamaterials can also be characterized by numerical calculation of non-Abelian Wilson cycles of primitive cell structures.
  • topological edge states will appear on the free or fixed boundaries of the sample. Compared with the previous topological edge states that existed at two interfaces, the edge state here requires only one material.
  • the inventor processed two samples corresponding to Figure 2 and Figure 3 respectively, representing free and fixed boundaries respectively, and the sample contained units.
  • the piezoelectric sheet is attached to the free or fixed boundary of the sample to excite the edge state.
  • the inventor measured the out-of-plane component with a laser vibrometer perpendicular to the sample. The excitation frequency of the two samples was 26.75kHz.
  • FIG. 7 shows a schematic diagram of the experimental results of the elastic edge state of the structure in FIG. 4 .
  • Figure 8 shows a schematic diagram of the experimental results of the elastic edge state of the force transmission structure in Figures 2 and 3.
  • the vertical axis represents frequency
  • the horizontal axis k x ( ⁇ /a) represents the wave vector along the x direction.
  • the experimental results of the elastic edge states of the two samples are shown in Figures 7 and 8.
  • the background in the figure represents the experimental results
  • the solid curve represents the calculation results. For free boundary conditions, it can be seen from the left part of the approximately sharp-angled solid curve in the middle of the figure (i.e., the calculation results) that it is consistent with the background (i.e., the experimental results).
  • Figure 9 shows a schematic diagram of the spiral edge state of the force transmission structure in Figures 2 and 3 at different times.
  • Figure 10 shows a schematic diagram of the spiral edge state of the force transmission structure in Figures 2 and 3 at different times.
  • the spiral edge states of the force transmission structure at different times are schematically illustrated through normalization.
  • w is the displacement in the z direction.
  • the filled sector diagram on the left side of the schematic diagram represents the degree of rotation of the block caused by the amplitude vortex, and the filled sector area represents the angle of rotation of the block.
  • the clockwise and counterclockwise arrows in the diagram represent clockwise and counterclockwise rotation of the block respectively.
  • the -1 in the scale below the normalized w in the schematic diagram represents the degree of downward displacement of the block along the z-direction at this location, and the 1 in the scale represents the degree of upward displacement of the block along the z-direction at this location.
  • the shading depth on the squares in the figure corresponds to the shading depth in the normalized w scale at the bottom of the figure.
  • the shading depth of this part corresponds to the right part of the normalized w scale (that is, the part close to 1 in the scale) one side); if a specific part of the square in the figure deforms downward, the coloring depth of that part corresponds to the left side part of the normalized w scale (that is, the side close to -1 in the scale).
  • the pseudospin-momentum binding properties of spiral edge states can be reflected by the contours of the eigenmodes at the free and fixed boundaries. As shown in Figures 9 and 10, at different times, the amplitude of the vortex causes the square to rotate, and the direction of rotation is consistent with the propagation direction of the edge state. Specifically, a forward (backward) propagating edge state has a clockwise (counterclockwise) rotation. Therefore, the topological edge states are bound to the direction of the vortex. Furthermore, multiple point sources, but with different phases, are used to selectively excite edge states with pseudo-spin upwards or downwards.
  • FIG. 11 shows a schematic representation of a sample with defects.
  • a distinctive feature of topological edge states is their robust one-way transmission along the boundary even in the presence of defects such as sharp corners.
  • the inventor designed a sample with a rectangular defect, as shown in Figure 11.
  • the defect has four 90-degree corners. Place the source at one end of the free boundary, which is 34 units in length. Using chirp signal, the frequency changes linearly from 23.5kHz to 30.5kHz.
  • FIG. 12 shows a schematic diagram of the transmission curve of elastic waves at the edge of the sample with defects in FIG. 11 .
  • the vertical axis represents energy transmission (db)
  • the horizontal axis represents frequency.
  • the vertical axis coordinate of the transmission curve of the defect path is slightly higher than the vertical axis coordinate of the transmission curve of the straight path.
  • the ordinate coordinates of the transmission curves containing the defect path and the straight path are basically the same.
  • the inventor compared the transmission curves of the defect-containing path and the straight path. The difference between the two transmission curves in the topological forbidden band (grey area) is small, indicating that the edge state propagating along the rectangular defect has weak Backscattered, excitation frequency is 26.75kHz. Experimental results and simulation results show good consistency, indicating that elastic waves can propagate smoothly around rectangular defects.
  • Figure 13 shows a schematic structural diagram of a packaging assembly according to some embodiments of the present disclosure.
  • the embodiment of the present disclosure also provides a packaging assembly 500, which includes a plurality of protective parts 501. Two adjacent protective parts 501 are connected, and the protective parts 501 cover the outer surface of the item to be packaged. At least one guard 501 is provided with the above-mentioned force transmission structure 10 .
  • Multiple force transmission structures 10 can be provided on the protective piece 501.
  • the force transmission structure 10 can be provided on one protective piece 501, or the force transmission structure 10 can be provided on multiple protective pieces 501.
  • the force transmission structures 10 can be provided on two adjacent protective pieces. 501 are connected to form a wrap around at least part of the outer surface of the product 700 to be protected.
  • the energy generated by the contact between the integral corners formed by the multiple protective members 501 and the ground can be propagated along the edge of the force transmission structure 10 , thereby avoiding excessive accumulation at the corners of the protective members 501 and reducing the risk of damage.
  • the risk of damage to the packaging component 500 can improve the protective capability of the protective component 501 .
  • the plurality of protective members 501 includes a second protective member 5012 and at least one first protective member 5011.
  • the side portion of the first protective member 5011 is connected to the second protective member 5012, at least on the first protective member 5011.
  • the force transmission structure 10 can also be provided on both the first protective member 5011 and the second protective member 5012.
  • the first protective member 5011 is preferably used to protect the front of the product 700 to be protected.
  • the force transmission structure 10 may be provided only on one side of the first protective member 5011, or the force transmission structure 10 may be provided on the third protective member 5011.
  • the force transmission structure 10 is provided on both sides of a protective member 5011.
  • the force transmission structure 10 can also be provided in the entire area of the first protective member 5011.
  • FIG. 14 is a schematic structural diagram of the first protective member 5011 in FIG. 13 .
  • the entire area of the first protective member 5011 in the embodiment of the present disclosure is provided with the above-mentioned force transmission structure 10 .
  • the mass blocks 300 of the force transmission structure 10 on the first protective member 5011 can be arranged in multiple rows and columns at intervals. In this way, when the product falls, the energy generated by the contact between the corners of the protective member 501 and the ground can be transferred along the protective member.
  • FIG. 15 is a schematic structural diagram of the second protective member 5012 in FIG. 13 .
  • the above-mentioned force transmission structure 10 is also provided on the second guard 5012 connected to the side of the first guard 5011. Since the first guard 5011 and the second The protective piece 5012 has an included angle, so that there are opposite valley topologies on both sides of the side where the first protective piece 5011 and the second protective piece 5012 are connected (that is, the vertical edge 5013), so that the protective piece 5012 can be formed at an angle.
  • the interface forms a topologically protected boundary state, thereby guiding the energy at the angular position along the edges 5013 (including the vertical edges 5013 at the corners and the edges at the same corners as the first guard 5011 and the second guard 5012 Edge 5013 connection
  • the two horizontal edges 5013 are propagated to avoid excessive accumulation of energy at the corners and prevent damage to the packaging structure.
  • the first protective part 5011 and the second protective part 5012 can be the body 200 of the force transmission structure 10, and can be provided only on the outside of the first protective part 5011 and the second protective part 5012.
  • the force transmission structure 10 on the mass block 300 that is, the first protective member 5011 and the second protective member 5012 in the embodiment of the present disclosure adopts the force transmission structure 10 shown in FIG. 2 , so that the inner side of the first protective member 5011 can be maximized. It is a flat surface and fits the outer surface corresponding to the product 700 to be protected.
  • the force transmission structure 10 on the first protective piece 5011 and the second protective piece 5012 in the embodiment of the present disclosure can also be the force transmission structure 10 shown in Figure 3, which is not limited here.
  • the side portion of the first protective member 5011 and the side portion of the second protective member 5012 are fitted and connected.
  • mortise and tenon, plug-in or/and butt joint methods can be used. , no specific restrictions are made here.
  • other protective parts 501 can also be connected in a fitting manner, that is, one protective part 501 is fitted with two adjacent protective parts 501 and supports the two adjacent protective parts 501, so that The protective piece 501 forms an integral protective structure.
  • one protective part 501 receives an impact force, the impact force can be dispersed to other parts through the other protective pieces 501 , thereby reducing the impact force on the product 700 to be protected.
  • the remaining protective parts 501 will support the broken part and prevent the broken part from being displaced, thereby improving the comprehensive protection capability of the packaging component 500, which has very good practical value.
  • the protective component 501 can be made of foam that is relatively common on the market. In some embodiments, both sides of each protective piece 501 can be fitted with the sides of two adjacent protective pieces 501. Since the sides of the protective pieces 501 are fitted with each other, the maximum possible The protective piece 501 is used to form a protective layer that matches at least part of the outer surface of the product 700 to be protected to save costs.
  • some adjacent protective pieces 501 may not be fitted side-to-side, that is, the side edge of one protective piece may not be fitted in the middle of another protective piece 501.
  • the protective piece 501 can be wrapped on part of the outer surface of the product 700 to be protected, or can be wrapped on the entire outer surface of the product 700 to be protected.
  • the product to be protected 700 specific shape to set.
  • part of the outer surface of the product 700 to be protected (such as the back, top or bottom, etc.) does not require special protection, and the protective component 501 does not need to be covered on these outer surfaces that do not require special protection.
  • it can also Cost saving; if the outer surface of the product 700 to be protected needs to be completely protected, the protective parts 501 need to be completely covered on these outer surfaces that do not require special protection to effectively protect the product 700 to be protected.
  • the product 700 to be protected in the embodiment of the present disclosure can be provided with a peripheral side.
  • a plurality of protective pieces 501 can surround a protective cavity that matches the peripheral side and is used to accommodate the peripheral side. That is, the protective pieces 501 can only cover the peripheral side. on the peripheral side of the protective product 700 to form a protective layer that only protects the peripheral side of the product 700 to be protected.
  • the product 700 to be protected can also be provided with a top connected to the top of the circumferential side and a bottom connected to the bottom of the circumferential side.
  • a plurality of protective pieces 501 can surround a protective cavity that matches the outer surface of the product 700 to be protected, that is, a protective cavity.
  • the member 501 can be covered on the entire outer surface of the product 700 to be protected to form a protective layer that protects the entire outer surface of the product 700 to be protected.
  • Each protective piece 501 or part of the protective pieces 501 in the embodiment of the present disclosure can be provided with a weight-reducing portion 5014.
  • the weight-reducing portion 5014 can be groove-shaped or hole-shaped to further reduce the amount of protective piece 501 and the amount of packaging material. .
  • each protective piece 501 When transporting the product 700 to be protected, each protective piece 501 can be assembled first on the outer peripheral surface to be protected, and then the various protective pieces 501 can be connected as a whole.
  • the inner side of each protective piece 501 in the embodiment of the present disclosure can match the shape of the covered part of the product 700 to be protected, and can effectively protect the product 700 to be protected, and each protective piece
  • the outer side of the protective member 501 preferably forms a relatively smooth surface.
  • the outer side of the protective member 501 may be provided with an operating part for holding.
  • the operating part may be hole-shaped or groove-shaped, and is not limited here.
  • the coupling parts 400 of the force transmission structure 10 of two adjacent protective parts 501 are inclined in different clockwise directions. That is, the topologies of the force transmission structures 10 on the two adjacent protective parts 501 are different.
  • Figure 16 shows a schematic diagram of a packaging assembly with two different rotation directions according to some embodiments of the present disclosure.
  • combining two force transfer structures 10 with different topological phases to select transmission paths paves the way for exploring the design of devices such as distributors and switches.
  • a (B) the primitive cell containing counterclockwise (clockwise) interlayer coupling
  • a and B are spliced together to design a topological device containing four ports. The source is placed at port 1, and the left and right sides of the sample are absorbing boundaries to reduce reflections. The width and height of the sample can be adjusted.
  • Figure 17 shows the variation curve of the energy from 2 to 4 in Figure 16 with the height H of the sample.
  • the horizontal axis represents the height of the sample
  • the vertical axis represents the energy transmission ratio
  • a represents the side length of 200.
  • the inventor calculated the energy variation curve from port 2 to port 4 of the topological device with height. It can be found that ports 3 and 4 of the topological device show a fluctuating trend as the height changes. This is due to the mutual coupling of two edge states with positive group velocities on the AB interface. In addition, there is basically no energy flowing into port 2 due to spin and momentum binding.
  • FIG. 18 shows the propagation path of the elastic wave in FIG. 16 .
  • the experimental field diagram and the simulated field diagram show good consistency, which also proves that adjusting the height of the sample can adjust the propagation of elastic waves.
  • FIG. 18 shows the propagation path of the elastic wave in FIG. 16 .
  • Panels c-h in Figure 18 illustrate the selective transmission of elastic edge state multi-topology channels.
  • the five-pointed star represents a point source, and the arrow represents the direction of edge state propagation.
  • the inventor combined topology with packaging. Since the contact time between the corner and the ground is basically determined when the product falls, elastic waves of a specific frequency will be generated. For traditional packaging structures, when a corner falls, energy is often concentrated at the corners or transferred to the body of the packaging structure. Therefore, thicker foam is often required to protect the product from damage.
  • both sides of the edge 5013 are composed of opposite valley topological phases, forming a topologically protected boundary state at the interface, thereby guiding the energy at the corner position to propagate along the edge 5013, avoiding excessive accumulation of energy at the corner position, and preventing the packaging structure Destruction occurs.
  • the force transmission structures 10 of the same topological phase can be provided on two adjacent protective pieces 501 , in which case the elastic waves are transmitted along the edges of the force transmission structures 10 .
  • the protective piece 501 is provided with multiple force transmission structures 10 , and the multiple force transmission structures 10 are arranged in a matrix.
  • the bodies 200 of multiple force transmission structures 10 are spliced in a matrix to form a protective piece 501 .
  • the force transmission structure 10 is made of elastic metamaterials such as foam.
  • elastic metamaterials are widely used in non-destructive testing, wave guidance, information processing and other methods to manipulate elastic waves that are not found in nature.
  • wave transmission is inevitably affected by backscattering due to the existence of bends and defects.
  • topological elastic metamaterials that protect efficient transport of boundary modes have been extensively explored.
  • the body 200 is rectangular, the long side of the body 200 is spliced with the long side of another body 200 , and the wide side of the body 200 is spliced with the wide side of another body 200 , so that the multiple force transmission structures 10 form a matrix. arrangement.
  • topologically elastic metamaterials there are two types of topologically elastic metamaterials.
  • the first one has a chiral boundary state and generally uses piezoelectric materials to break the time reversal symmetry to simulate quantum anomalous Hall insulators.
  • the other is similar to quantum spin (valley) Hall insulators, with time-reversal symmetry of the spiral interface state, which has been implemented in multi-scale elastic metamaterials.
  • Interface states are usually localized at the domain wall between two different topological phases. Whether elastic metamaterials in a continuum can generate topological boundary states at single-phase boundaries has been an open question.
  • the foam at the corners of the packaging component 500 is prone to energy accumulation and stress concentration, leading to damage to the packaging structure, which in turn causes damage to the products being protected, causing additional losses.
  • wrapping the component 500 for strength analysis it can be found that the structural component has strong strength both in the body and at the edges. The impact energy of traditional packaging spreads along the body, so sufficient thickness is required to absorb energy to protect the product.
  • a force transmission structure 10 is provided on part of the foam of the packaging component 500, and an interface (i.e., edge 5013) is formed at the boundary of a single topological phase or two opposite topological phases, so that the force transmission structure 10 generated during corner drop conditions can be eliminated.
  • Elastic waves fully propagate along the edges 5013 to avoid energy accumulation near the corners that may cause structural damage or too much elastic waves propagating into the foam to cause damage to the product.
  • extremely thin packaging cushioning materials can be used to design, reducing packaging costs. Reduce material usage, reduce packaging size, increase container loading capacity, and reduce shipping costs.
  • the packaging assembly 500 further includes a support body 600 covering the outer surface of the protective member 501 .
  • the support body 600 may be a corrugated carton, and is packaged on the outer surface of the protective member 501 to fix and protect the protective member 501 .
  • the support 600 provided on the outside of the protective member 501 can protect the protective member 501 and reduce the impact force received by the protective member 501, thereby reducing the breakage of the protective member 501. If multiple protective members If one of the protective parts 501 breaks, the support 600 provided outside the protective part 501 can also support the broken part of the protective part 501 to prevent the broken part from being displaced, so as to maximize the use of the packaging assembly 500
  • the comprehensive protection capability has very good practical value.
  • the external support body 600 may include corrugated or carton boxes to be wrapped around the outer surface of the protective member 501 to play a preliminary protective role, and may provide assembly space for the integral protective member 501. Support the integral protective piece 501 to prevent the protective piece 501 from being damaged due to collision and splitting, so as to provide a good protective effect on the protective product 700 to be treated.
  • the protective component 501 When transporting the product 700 to be protected, the protective component 501 can be assembled on the outer peripheral surface of the product 700 to be protected first, and then the support body 600 can be placed on the protective component 501 .
  • the inner side of each protective piece 501 in the embodiment of the present disclosure matches the shape of the covered product 700 to be protected, and the outer side of each protective piece 501 is in plane contact with the inner side of the accommodation cavity.
  • Figure 19 is a schematic structural diagram of a packaging assembly with a support body.
  • the accommodation cavity may be provided with an opening 601 for receiving the protective member 501. That is, after the product 700 to be protected is assembled into the support body 600, the support body 600 equipped with the product 700 to be protected can be opened from The opening 601 enters the receiving cavity of the support body 600, and then the opening 601 of the support body 600 is closed.
  • the opening area of the opening 601 is no larger than the circumferential cross-sectional area of the protective member 501, so that when the protective member 501 is received in the above-mentioned accommodation cavity, the protective member 501 can expand the accommodation cavity, and the protective member 501 is in contact with the supporting cavity.
  • the inner wall of the body 600 fits tightly. That is, when the protective piece 501 is accommodated in the above-mentioned accommodation cavity, there is a negative gap between the protective piece 501 and the support body 600, which can further improve the integrity of the protective piece 501 and prevent as much as possible the damage caused by the loose protective piece 501 during transportation. The phenomenon that the protective product 700 cannot effectively protect occurs.
  • the gap between the protective member 501 and the support body 600 is not less than -2mm, that is, along the same direction perpendicular to the center line of the accommodation cavity, the size of the protective member 501
  • the difference between the dimensions of the receiving cavity is no more than 4 mm, so as to facilitate the assembly of the protective member 501 in the receiving cavity of the supporting body 600 and at the same time improve the firmness of the protective member 501 in the receiving cavity of the supporting body 600 .
  • the packaging assembly 500 includes the support body 600 that accommodates the above-mentioned protective piece 501, during transportation, the support body 600 provided outside the protective piece 501 can protect the protective piece 501 and reduce the impact force on the protective piece 501. , to reduce the phenomenon of breakage of the protective piece 501. If one of the plurality of protective pieces 501 breaks, the support 600 provided outside the protective piece 501 can also support the broken part of the protective piece 501. It functions to prevent the fractured part from being displaced, so as to maximize the comprehensive protection capability of the packaging component 500, which has very good practical value.
  • the foam thickness selected for the packaging component 500 in the related art is large, and the corresponding outer packaging size is large.
  • the shipping cost of a single oven in the related art is as high as 355 yuan.
  • the packaging assembly 500 shown in the embodiment of the present disclosure the cost is relatively high.
  • the packing volume in the same space can be increased from the original 216 units to 304 units, and the shipping cost of each unit is reduced by 103 yuan. It can greatly reduce the production cost and transportation cost, and has good practical and economic value.
  • the foam at the corners is prone to energy accumulation and stress concentration, causing damage to the packaging structure, which in turn causes damage to the products being protected, causing additional losses.
  • strength analysis of the packaging component 500 it can be seen that both the body 200 and the edge 5013 of the packaging component 500 have strong strength.
  • the impact energy of the packaging component 500 in the related art is propagated along the body 200, so sufficient thickness is required to absorb energy to protect the product, thereby increasing the production cost of the packaging component 500.
  • FIG. 13 is a schematic structural diagram of a packaging component 500 according to an embodiment of the present disclosure.
  • the packaging component 500 shown in Figure 13 applies the foam design of the above force transmission structure 10. Both sides of the edge 5013 are connected by opposite valley topologies. The structure forms a topologically protected boundary state at the interface, thereby guiding the energy at the corner position to propagate along the edge 5013, avoiding excessive accumulation of energy at the corner position, and preventing the structure of the packaging component 500 from being damaged.
  • the embodiment of the present disclosure also provides an electrical component 20.
  • the electrical component 20 includes an electrical device and the above-mentioned packaging component 500.
  • a plurality of protective parts 501 are wrapped on the outer surface of the electrical device.
  • the embodiment of the present disclosure also provides an electrical component 20.
  • the electrical component 20 includes electrical equipment and the above-mentioned packaging component 500.
  • the electrical equipment is wrapped in the protective member 501 of the packaging component 500.
  • the electrical component 20 with the above-mentioned packaging component 500 can, to a certain extent, avoid excessive accumulation of energy at the corners of the protective component 501 and prevent the packaging component 500 from being damaged, thereby achieving the purpose of product protection and reducing the corresponding protection requirements.
  • the amount of material used in the component 501 is reduced to improve the lightweight of the packaging component 500 and further reduce the packaging cost, which is very practical and economical.
  • Electrical equipment can be home appliances such as ovens, microwave ovens, and washing machines.
  • some home appliances such as air conditioners
  • filter covers to filter the fresh air introduced by the fans.
  • most air conditioners are placed vertically. Due to the limited installation space, the number of air conditioners installed is small. Based on this, the embodiment of the present disclosure stacks multiple air conditioners with the filter cover of the air conditioner facing upward. Since the air conditioner below needs to support the air conditioner above, the filter cover needs to have higher support strength. The existing filter cover This usage requirement cannot be met.
  • the embodiment of the present disclosure applies the above-mentioned force transmission structure 10 to the filter cover, that is, the above-mentioned force transmission structure 10 is provided on the side of the frame of the filter cover.
  • the filter cover with the above-mentioned force transmission structure 10 can Disperse the force on the filter cover so that the filter cover has better support strength, so that the air conditioner can be installed in a stacked manner to install a larger number of air conditioners in a limited space, which is very practical. .
  • references to the terms “one embodiment,” “some embodiments,” “an example,” “specific examples,” or “some examples” or the like means that specific features are described in connection with the embodiment or example. , structures, materials, or features are included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may join and combine the different embodiments or examples described in this specification.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Handcart (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Buffer Packaging (AREA)

Abstract

L'invention concerne une structure de transfert de force, comprenant : un élément d'accouplement (400), deux corps (200) et deux blocs de masse (300). Les deux blocs de masse (300) sont disposés en saillie sur les deux corps (200), respectivement ; l'élément d'accouplement (400) relie les deux corps (200).
PCT/CN2023/113513 2022-08-17 2023-08-17 Structure de transfert de force, ensemble d'emballage, ensemble appareil électrique, couvercle d'écran de filtre et appareil électrique WO2024037584A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210991912 2022-08-17
CN202210991912.4 2022-08-17
CN202310679540.6A CN117585311A (zh) 2022-08-17 2023-06-09 力传递结构、包装组件、电器组件、过滤网罩及电器设备
CN202310679540.6 2023-06-09

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WO2024037584A1 true WO2024037584A1 (fr) 2024-02-22

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Citations (12)

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US5149066A (en) * 1991-02-11 1992-09-22 Aeroflex International Incorporated Isolator with improved symmetrical response to shock and vibration forces
WO1997011288A1 (fr) * 1995-09-19 1997-03-27 University Of Southampton Dispositif antivibratile a amortisseur dynamique
JPH10167330A (ja) * 1996-12-05 1998-06-23 Canon Electron Inc 天然繊維を用いた緩衝材
JP2005263231A (ja) * 2004-03-16 2005-09-29 Sharp Corp パルプモールド緩衝材、包装装置及び包装装置の製造方法
US20110203962A1 (en) * 2010-02-22 2011-08-25 Reflex Packaging Inc. Packaging cushion structure made from stiff paper-board sheets
US20190093728A1 (en) * 2017-09-25 2019-03-28 University Of Washington Shock absorbing and impact mitigating structures based on axial-rotational coupling mechanism
US20190145740A1 (en) * 2016-07-15 2019-05-16 VICIS, Inc. Impact Absorbing Structures in Body Protective Equipment
CN209258590U (zh) * 2018-12-24 2019-08-16 重庆酷仁环保科技有限公司 一种空调外机包装箱
CN110696760A (zh) * 2019-11-07 2020-01-17 五邑大学 一种折纸肋板吸能结构的实现方法及结构

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133198A (en) * 1966-10-26 1968-11-13 James Sutton Hardigg Shock isolator element particularly for incorporation in a cushioned container unit and method of making the same
GB1381924A (en) * 1971-03-10 1975-01-29 Quillery Energy absorption devices for motor vehicles
JPS63280000A (ja) * 1987-04-24 1988-11-17 アストロ、エアロスペース、コーポレーション 折畳み式トラス構造体
US5149066A (en) * 1991-02-11 1992-09-22 Aeroflex International Incorporated Isolator with improved symmetrical response to shock and vibration forces
WO1997011288A1 (fr) * 1995-09-19 1997-03-27 University Of Southampton Dispositif antivibratile a amortisseur dynamique
JPH10167330A (ja) * 1996-12-05 1998-06-23 Canon Electron Inc 天然繊維を用いた緩衝材
JP2005263231A (ja) * 2004-03-16 2005-09-29 Sharp Corp パルプモールド緩衝材、包装装置及び包装装置の製造方法
US20110203962A1 (en) * 2010-02-22 2011-08-25 Reflex Packaging Inc. Packaging cushion structure made from stiff paper-board sheets
US20190145740A1 (en) * 2016-07-15 2019-05-16 VICIS, Inc. Impact Absorbing Structures in Body Protective Equipment
US20190093728A1 (en) * 2017-09-25 2019-03-28 University Of Washington Shock absorbing and impact mitigating structures based on axial-rotational coupling mechanism
CN209258590U (zh) * 2018-12-24 2019-08-16 重庆酷仁环保科技有限公司 一种空调外机包装箱
CN110696760A (zh) * 2019-11-07 2020-01-17 五邑大学 一种折纸肋板吸能结构的实现方法及结构

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