Honeycomb structure wave-absorbing material with high heat dissipation performance

Abstract

The utility model relates to the technical field of wave-absorbing materials, in particular to a high-heat-dissipation honeycomb structure wave-absorbing material which comprises a honeycomb layer, second wave-absorbing layers are arranged at the upper end and the lower end of the honeycomb layer respectively, a first wave-absorbing layer is fixedly arranged on the top face of one of the second wave-absorbing layers, and a surface layer is arranged on the top face of the first wave-absorbing layer. An isolation layer is arranged on the bottom face of the other second wave absorbing layer, a heat dissipation layer is arranged on the bottom face of the isolation layer, and a backing layer is installed on the bottom face of the heat dissipation layer. Electromagnetic waves enter the honeycomb layer and are reflected and scattered for multiple times in the material, the propagation path of the electromagnetic waves is prolonged, the interaction time of the electromagnetic waves and the wave-absorbing material is prolonged, the heat dissipation layer rapidly leads out heat from the interior of the material, the backing layer is beneficial to further dissipation of the heat, accumulation of the heat in the material is effectively prevented, and the service life of the material is prolonged. The temperature rise of the material is avoided, so that the stability of electromagnetic parameters of the wave-absorbing material is guaranteed, and the good absorption performance of the wave-absorbing material to electromagnetic waves is maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to wave absorbing material technical field, concretely is a kind of high heat dissipation honeycomb structure wave absorbing material. BACKGROUND

[0002] High heat dissipation honeycomb structure wave absorbing material is a kind of special material that combines honeycomb structure and wave absorbing, heat dissipation function, it is mainly to realize efficient wave absorbing and heat dissipation performance using honeycomb geometry structure, and honeycomb structure wave absorbing material is a kind of new composite material made of honeycomb shape as sandwich layer, surface coating wave absorbing material coating or directly using wave absorbing composite material;

[0003] Through the retrieval, the existing disclosure number CN217283942U of Chinese patent, name is a resistance progressive honeycomb wave absorbing material, and the honeycomb body made of resistance material graphite weakens the energy of part of electromagnetic wave absorbed and converted into heat from structure and material, and the heat energy is absorbed and converted into heat energy by conductive fiber, first ferrite sheet and second ferrite sheet, and the heat energy is accumulated and converged in the inside of matrix and honeycomb body, and finally discharged via air passage and heat dissipation port, to ensure that wave absorbing capacity is not damaged and reduced.

[0004] But in the use process, it is found that the structure mainly relies on air passage and heat dissipation port to dissipate heat, and the heat dissipation area is limited, and the heat dissipation efficiency is low, and under high-power or long-time working condition, heat accumulation is serious, which can easily lead to temperature rise of material, and can easily lead to change of electromagnetic parameter of wave absorbing material, thereby affecting the absorption effect of electromagnetic wave. UTILITY MODEL CONTENT

[0005] In view of the defects of the prior art, the utility model provides a kind of high heat dissipation honeycomb structure wave absorbing material, and electromagnetic wave enters honeycomb layer, and multiple reflection and scattering occur in material interior, the propagation path of electromagnetic wave is lengthened, the interaction time with wave absorbing material is increased, heat dissipation layer quickly exports heat from material interior, backing layer helps the further dissipation of heat, effectively prevents the accumulation of heat in material interior, avoids temperature rise of material, thereby guaranteeing the stability of electromagnetic parameter of wave absorbing material, maintains its good absorption performance to electromagnetic wave.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a kind of high heat dissipation honeycomb structure wave absorbing material, including honeycomb layer, the upper and lower ends of the honeycomb layer are respectively provided with second wave absorbing layer, one of the second wave absorbing layer top surface is fixed with first wave absorbing layer, the top surface of the first wave absorbing layer is provided with surface layer, the bottom surface of another second wave absorbing layer is provided with isolation layer, the bottom surface of the isolation layer is provided with heat dissipation layer, and the bottom surface of the heat dissipation layer is installed with backing layer.

[0007] Further, the honeycomb structure of the honeycomb layer is regularly arranged, and the aperture size is not unique.

[0008] Through the technical scheme, the electromagnetic wave is reflected and scattered in the material multiple times, prolongs the propagation path of the electromagnetic wave, and increases the interaction time with the wave-absorbing material.

[0009] Further, the two second wave-absorbing layers are respectively connected with the honeycomb layer by pressing, and the first wave-absorbing layer is connected with one of the second wave-absorbing layers by pressing.

[0010] Through the technical scheme, the continuity and integrity of the wave-absorbing layer are further enhanced, which helps to reduce the reflection and leakage of electromagnetic waves at the interface between layers.

[0011] Further, the surface layer is connected with the first wave-absorbing layer by adhesive.

[0012] Through the technical scheme, the gap and gap at the interface between layers are reduced, and the integrity and stability of the material are improved.

[0013] Further, the surface layer is made of glass fiber material.

[0014] Through the technical scheme, the glass fiber material has the characteristics of high strength and high modulus, which significantly enhances the structural strength of the surface layer. At the same time, the glass fiber has good heat resistance, which helps to improve the working performance and stability of the entire material under high temperature conditions. The glass fiber material itself has little effect on the propagation of electromagnetic waves, and it is difficult to interfere or weaken the wave-absorbing performance.

[0015] Further, one of the second wave-absorbing layers and the heat dissipation layer are respectively connected with the outer wall of the isolation layer by adhesive.

[0016] Through the technical scheme, the reflection and scattering of electromagnetic waves at the interface between layers are reduced, which helps to enhance the wave-absorbing efficiency of the wave-absorbing layer and improve the electromagnetic wave absorption capacity of the material.

[0017] Further, the heat dissipation layer and the backing layer are fixedly connected, a plurality of grid heat dissipation holes are formed in the middle of the heat dissipation layer, and the plurality of grid heat dissipation holes are communicated with each other.

[0018] Through the technical scheme, an efficient heat dissipation channel is constructed, so that heat is quickly conducted out of the material.

[0019] Further, a plurality of strip-shaped heat dissipation through holes are formed in the bottom surface of the backing layer, and the strip-shaped heat dissipation through holes are in linear equidistant structure.

[0020] Through the technical scheme, the heat is evenly distributed and quickly dissipated.

[0021] Through the technical scheme, the utility model provides a high-heat-dissipation honeycomb structure wave-absorbing material, at least has the following beneficial effects:

[0022] 1. The high-heat-dissipation honeycomb structure wave-absorbing material, through the multiple reflections and scattering of electromagnetic waves entering the honeycomb layer inside the material, the propagation path of the electromagnetic waves is prolonged, and the interaction time with the wave-absorbing material is increased, the wave-absorbing material in the first wave-absorbing layer and the second wave-absorbing layer converts electromagnetic wave energy into heat energy, the converted heat energy is transmitted to the isolation layer through one of the second wave-absorbing layers, and then transmitted to the heat dissipation layer, the heat dissipation layer quickly guides the heat out of the material, the backing layer serves as a support and protection layer, ensures the stability and durability of the entire structure, and also helps to further dissipate heat, effectively prevents the accumulation of heat inside the material, avoids the temperature rise of the material, thereby ensuring the stability of the electromagnetic parameters of the wave-absorbing material and maintaining its good absorption performance to electromagnetic waves.

[0023] 2. The high-heat-dissipation honeycomb structure wave-absorbing material, through the way of pressure connection and adhesive connection, the layers are tightly combined, the material deformation or damage caused by thermal stress is avoided, the structural integrity and reliability of the material in complex working environment and long-term use are ensured, the service life of the material is prolonged, and the maintenance cost is reduced.

[0024] 3. The high-heat-dissipation honeycomb structure wave-absorbing material, the heat dissipation area is further increased through the multiple grid heat dissipation holes in the middle of the heat dissipation layer, and the heat is quickly guided out of the material through the high-efficiency heat dissipation channel formed by the interconnected structure; the backing layer bottom surface is provided with multiple strip-shaped heat dissipation through holes, the strip-shaped heat dissipation through holes in the linear equidistant structure are beneficial to the uniform distribution and rapid dissipation of heat, and the backing layer as a support layer also ensures the stability and durability of the entire structure.

[0025] 4. The high-heat-dissipation honeycomb structure wave-absorbing material, the grid heat dissipation holes of the heat dissipation layer and the strip-shaped heat dissipation through holes of the backing layer cooperate with each other to form a three-dimensional and high-efficiency heat dissipation network, the network not only improves the heat dissipation efficiency, but also ensures the uniform distribution of heat inside the material, avoids the occurrence of local overheating, and ensures the stable operation of the material in the high-power or long-time working state. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the principles of the present application.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0028] Figure 2 It is a schematic diagram of the honeycomb layer structure of the present application;

[0029] Figure 3 It is a schematic diagram of the heat dissipation layer structure of the present application;

[0030] Figure 4 The utility model discloses a back layer structure perspective view.

[0031] In the drawing: 1, honeycomb layer, 2, second wave absorbing layer, 3, first wave absorbing layer, 4, surface layer, 5, isolation layer, 6, heat dissipation layer, 7, backing layer, 8, grid heat dissipation hole, 9, strip heat dissipation through hole. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of protection of the utility model.

[0033] Embodiment one

[0034] As shown in Figure 1 and Figure 2 , the embodiment provides a high-heat-dissipation honeycomb structure wave absorbing material, including honeycomb layer 1, the upper and lower ends of honeycomb layer 1 are respectively provided with second wave absorbing layer 2, one of second wave absorbing layer 2 top surface is fixed with first wave absorbing layer 3, the wave absorbing material in second wave absorbing layer 2 and first wave absorbing layer 3 is one of ferrite, carbon-based material or conductive polymer, the top surface of first wave absorbing layer 3 is provided with surface layer 4, surface layer 4 is glass fiber material, the bottom surface of the other second wave absorbing layer 2 is provided with isolation layer 5, the bottom surface of isolation layer 5 is provided with heat dissipation layer 6, and the bottom surface of heat dissipation layer 6 is provided with backing layer 7.

[0035] The honeycomb structure of honeycomb layer 1 is arranged regularly, and the aperture size is not unique; electromagnetic waves occur multiple reflections and scattering in the material, prolong the propagation path of electromagnetic waves, increase the interaction time with wave absorbing material.

[0036] Two second wave absorbing layers 2 are respectively connected with honeycomb layer 1 by pressing, and first wave absorbing layer 3 is connected with one of second wave absorbing layers 2 by pressing; further enhance the continuity and integrity of wave absorbing layer, help to reduce electromagnetic wave reflection and leakage in the interface between layers.

[0037] Surface layer 4 is connected with first wave absorbing layer 3 by adhesive; reduce the gap and gap in the interface between layers, improve the integrity and stability of the material.

[0038] Surface layer 4 is glass fiber material; glass fiber material has the characteristics of high strength and high modulus, which significantly enhances the structural strength of surface layer 4, at the same time, glass fiber has good heat resistance, which helps to improve the working performance and stability of the whole material under high temperature conditions, and glass fiber material itself has little influence on the propagation of electromagnetic waves, which is difficult to interfere or weaken the wave absorbing performance.

[0039] One of the second wave-absorbing layer 2 and the heat dissipation layer 6 are respectively adhered to the outer wall of the isolation layer 5; the reflection and scattering of electromagnetic waves at the interface between the layers are reduced, which helps to enhance the wave-absorbing efficiency of the wave-absorbing layer and improve the electromagnetic wave absorption capacity of the material.

[0040] Working principle: when electromagnetic waves are incident on the surface of the material, they are first absorbed and scattered by the surface layer 4, then enter the honeycomb layer 1, and due to the regular arrangement and different aperture size of the honeycomb structure, the electromagnetic waves are reflected and scattered multiple times inside the material, prolonging the propagation path of the electromagnetic waves and increasing the interaction time with the wave-absorbing material. The wave-absorbing materials in the first wave-absorbing layer 3 and the second wave-absorbing layer 2 convert electromagnetic wave energy into heat energy;

[0041] The converted heat energy is transmitted to the isolation layer 5 through one of the second wave-absorbing layers 2, and then to the heat dissipation layer 6. The heat dissipation layer 6 is made of a material with high thermal conductivity, such as graphite, copper, aluminum, etc. to quickly conduct heat out of the material. The backing layer 7 serves as a support and protection layer to ensure the stability and durability of the entire structure, and also helps to further dissipate heat, effectively preventing the accumulation of heat inside the material and avoiding temperature rise, thereby ensuring the stability of the electromagnetic parameters of the wave-absorbing material and maintaining its good absorption performance for electromagnetic waves;

[0042] Through pressure connection and adhesive connection, the layers are tightly combined, avoiding material deformation or damage caused by thermal stress, ensuring the structural integrity and reliability of the material in complex working environments and during long-term use, prolonging the service life of the material and reducing maintenance costs.

[0043] Example two

[0044] As shown in Figure 1 , Figure 3 and Figure 4 , on the basis of example one, the heat dissipation layer 6 and the backing layer 7 are fixedly connected, and a plurality of grid heat dissipation holes 8 are provided in the middle of the heat dissipation layer 6, which are in communication with each other; an efficient heat dissipation channel is constructed to quickly conduct heat out of the material.

[0045] A plurality of strip-shaped heat dissipation through holes 9 are provided on the bottom surface of the backing layer 7, which are in linear and equidistant structure; which is conducive to the uniform distribution and rapid dissipation of heat.

[0046] In use, the plurality of mesh heat dissipation holes 8 in the middle of the heat dissipation layer 6 further increase the heat dissipation area, and through the intercommunication structure, a high-efficiency heat dissipation channel is constructed to rapidly lead the heat out of the material; the plurality of strip-shaped heat dissipation through holes 9 on the bottom surface of the backing layer 7 further enhance the heat dissipation effect, and the strip-shaped heat dissipation through holes 9 in linear equidistant structure are beneficial to the uniform distribution and rapid dissipation of heat, and the backing layer 7 as a support layer also ensures the stability and durability of the whole structure;

[0047] The mesh heat dissipation holes 8 of the heat dissipation layer 6 and the strip-shaped heat dissipation through holes 9 of the backing layer 7 are matched with each other to form a three-dimensional and high-efficiency heat dissipation network, which not only improves the heat dissipation efficiency but also ensures the uniform distribution of heat in the material, avoids the occurrence of local overheating and ensures the stable operation of the material under the high-power or long-time working state.

[0048] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-heat-dissipation honeycomb structure wave-absorbing material, comprising a honeycomb layer (1), characterized in that: The upper and lower ends of the honeycomb layer (1) are respectively provided with second wave absorbing layers (2), one of the second wave absorbing layers (2) is fixedly provided with a first wave absorbing layer (3) on the top surface, the top surface of the first wave absorbing layer (3) is provided with a surface layer (4), the bottom surface of the other second wave absorbing layer (2) is provided with an isolation layer (5), the bottom surface of the isolation layer (5) is provided with a heat dissipation layer (6), and the bottom surface of the heat dissipation layer (6) is provided with a backing layer (7). 2.The high-heat-dissipation honeycomb structure wave-absorbing material according to claim 1, characterized in that: The honeycomb structure of the honeycomb layer (1) is arranged regularly. 3.The high-heat-dissipation honeycomb structure wave-absorbing material according to claim 1, characterized in that: The two second wave absorbing layers (2) are respectively connected with the honeycomb layer (1) by pressing and connecting, and the first wave absorbing layer (3) is connected with one of the second wave absorbing layers (2) by pressing and connecting. 4.The high-heat-dissipation honeycomb structure wave-absorbing material according to claim 1, characterized in that: The surface layer (4) is connected with the first wave absorbing layer (3) by adhesive.

5. The high heat dissipating honeycomb structure wave absorbing material according to claim 1, characterized in that: The surface layer (4) is a glass fiber layer. 6.The high-heat-dissipation honeycomb structure wave-absorbing material according to claim 1, characterized in that: One of the second wave absorbing layers (2) and the heat dissipation layer (6) are respectively connected with the outer wall of the isolation layer (5) by adhesive. 7.The high-heat-dissipation honeycomb structure wave-absorbing material according to claim 1, characterized in that: The heat dissipation layer (6) and the backing layer (7) are fixedly connected, a plurality of grid heat dissipation holes (8) are formed in the middle of the heat dissipation layer (6), and the plurality of grid heat dissipation holes (8) are communicated with each other. 8.The high-heat-dissipation honeycomb structure wave-absorbing material according to claim 1, characterized in that: A plurality of strip-shaped heat dissipation through holes (9) are formed in the bottom surface of the backing layer (7), and the strip-shaped heat dissipation through holes (9) are linearly and equidistantly arranged.

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