CN213261464U - Veneer and electrical apparatus - Google Patents

Abstract

The utility model provides a veneer and electrical apparatus. The veneer comprises a veneer layer, an adhesive layer, a first fiber weaving layer and a second fiber weaving layer which are sequentially arranged, wherein the weaving density of the first fiber weaving layer is greater than that of the second fiber weaving layer. The bilayer structure that first fibre weaving layer and second fibre weaving layer formed, the processing in easily later stage can combine together with the substrate through moulding plastics in for example, promotes the finished product quality, can industrial batch production, promotes production efficiency, and the in-process of moulding plastics, the wood veneer can bear the injection pressure of all directions and can not split, and the wood veneer high-usage practices thrift the forest resource. The wood veneer is used for the electric appliance, so that the appearance of the electric appliance can be enriched, and the aesthetic property of the electric appliance is improved.

Description

Veneer and electrical apparatus

Technical Field

The utility model relates to an electrical apparatus technical field, concretely relates to veneer and electrical apparatus.

Background

Household appliances are essential common articles in life of people, along with the increasing pursuit of people on the quality of life, people no longer only satisfy the practical performance of electrical appliances, the ornamental requirement on electrical appliances is also higher and higher, and therefore, the electrical appliance panel with solid wood appearance appears.

The electric appliance panel with the solid wood appearance presents natural texture, and the aesthetic property of the electric appliance can be improved. The solid wood appearance of the appliance can be achieved in two ways: firstly, a whole solid wood panel is used as a shell of the air conditioner; secondly, a layer of wood veneer is stuck on the surface of the plastic panel.

To the first mode, use monoblock wood panel as electrical apparatus shell, at first, wood system shell processing technology is complicated, and the size is difficult to guarantee, and is poor with the matching nature of other parts, and wood breaks easily during the equipment, is unfavorable for installation and outward appearance firm inadequately, has the potential safety hazard. Secondly, the wooden panel is difficult to maintain in the use, and temperature and humidity change can lead to wooden shell fracture, deformation etc.. In addition, the panel material needs large wood, the utilization rate of the wood is low, and forest resources are wasted.

In the second mode, a layer of wood veneer is stuck on the surface of the plastic panel, the back of the existing wood veneer is attached with a non-woven fabric substrate, the non-woven fabric is formed by firstly carrying out directional or random arrangement on textile short fibers or filaments to form a fiber web structure and then reinforcing the fiber web structure by adopting methods such as mechanical, thermal bonding or chemical method, and the like, so that the strength is low, the fiber web structure is easy to crack from a right-angle direction, and the appearance effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem that exists among the prior art at least. Therefore, the utility model provides a veneer to solve present veneer low strength, the easy scheduling problem that ftractures.

The utility model also provides an electrical apparatus.

The utility model discloses a first aspect provides a veneer, this veneer is including the wood cortex, adhesive layer, first fibre weaving layer and the second fibre weaving layer that set gradually, the weaving density of first fibre weaving layer is greater than the weaving density of second fibre weaving layer.

According to the utility model discloses wood skin decorative board has following technological effect at least:

the veneer comprises a veneer layer, an adhesive layer, a first fiber woven layer and a second fiber woven layer which are sequentially arranged, wherein the first fiber woven layer and the second fiber woven layer are both three-dimensionally woven, and the three-dimensionally woven fabric is also called three-dimensional fabric and is a fabric with a three-dimensional space shape. The fiber braided layer has large macroscopic surface area and excellent mechanical properties in all directions. And the bilayer structure that first fibre weaving layer and second fibre weaving layer formed, the processing in easy later stage is handled, can combine together through for example the base material of moulding plastics in the mould and forming electrical apparatus shell, promotes finished product quality, can industrialization batch production, promotes production efficiency.

First fibre weaving layer bonds through adhesive layer and wooden skin layer mutually, and the density of weaving of first fibre weaving layer is great, is greater than the density of weaving of second fibre weaving layer, and first fibre weaving layer can improve the intensity of wooden skin with wooden skin layer bonding back, has guaranteed that the wooden skin is difficult to be torn. In the process of combining the veneer with the base material of the electric appliance shell through in-mold injection, the injection pressure can reach 500-1000 bar, and the veneer layer can bear the injection pressure in all directions without cracking.

When the base material of electrical apparatus shell is plastics, because the density of weaving of second fibre weaving layer is little for the density of first fibre weaving layer, the three-dimensional structure of weaving is consequently loose relatively, and at the in-process of moulding plastics, the plastic melt infiltrates more easily in the mesh structure of loose second fibre weaving layer under the effect of injection moulding pressure, and the plastic melt solidifies in second fibre weaving layer to adhesive force between veneer decorative board and the electrical apparatus shell base member is stronger. And (3) obtaining the electrical appliance shell containing the veneer after injection molding.

The utility model discloses embodiment's veneer decorative board, veneer high-usage practices thrift forest resources.

According to an embodiment of the present invention, the base material of the housing of the electrical appliance is plastic, such as ABS (Acrylonitrile Butadiene Styrene, ABS for short).

According to an embodiment of the present invention, the thickness of the wood skin layer is 0.01 mm-1.00 mm.

According to an embodiment of the present invention, the thickness of the wood skin layer is 0.01 mm-0.50 mm.

According to an embodiment of the present invention, the thickness of the wood skin layer is 0.02 mm.

According to an embodiment of the present invention, the thickness of the first fiber braid layer is 15 μm to 200 μm.

According to an embodiment of the present invention, the thickness of the first fiber braid layer is 50 μm to 100 μm.

According to an embodiment of the present invention, the second fiber braid layer has a thickness of 50 to 500 μm.

According to an embodiment of the present invention, the thickness of the second fiber braid layer is 100 μm to 300 μm.

According to an embodiment of the present invention, the diameter of the textile fiber bundle forming the first fiber woven layer and the second fiber woven layer is 10 μm to 100 μm.

According to an embodiment of the invention, the diameter of the textile fibre bundle forming the first fibre weaving layer and the second fibre weaving layer is 10 μm.

According to an embodiment of the invention, the size of the void in the first fibre weaving layer is smaller than the diameter of the textile fibre bundle.

According to an embodiment of the invention, the size of the void in the second fibre weaving layer is more than twice the diameter of the textile fibre bundle.

According to the utility model discloses, the space size indicates the maximum distance between two points at cavity edge.

According to the utility model discloses an implementation mode, it has the carbon fiber silk to distribute in the textile fiber bundle.

According to the utility model discloses an embodiment, carbon fiber silk dispersion distributes in the textile fiber bundle.

According to an embodiment of the present invention, the addition amount of the carbon fiber yarn in the textile fiber bundle is 1% to 10%.

According to an embodiment of the invention, the carbon fiber filaments have a diameter of 1 μm to 15 μm.

According to an embodiment of the invention, the carbon fiber filaments have a diameter of 7 μm.

A second aspect of the present invention provides an electrical appliance, comprising the above veneer.

According to the utility model discloses an embodiment, electrical apparatus is the air conditioner.

Drawings

Fig. 1 is a schematic structural diagram of a veneer panel according to an embodiment of the present invention.

Fig. 2 is a schematic view of a wood veneer processing process flow of the embodiment of the present invention.

Fig. 3 is a top view of one of the woven structures in an embodiment of the invention.

Fig. 4 is a top view of a second weave structure according to an embodiment of the present invention.

Reference numerals:

a wood skin layer 100;

an adhesive layer 200;

a first fiber woven layer 300;

a second fiber woven layer 400;

a braided portion 500;

a void region 600.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, if there are first, second, third, etc. described, it is only for the purpose of distinguishing technical features, and it is not understood that relative importance is indicated or implied or that the number of indicated technical features is implicitly indicated or that the precedence of the indicated technical features is implicitly indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated, for example, up, down, left, right, etc., referred to the orientation description is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless there is an explicit limitation, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solutions.

Examples

A veneer panel according to a first aspect of an embodiment of the present invention will be described with reference to fig. 1.

Referring to fig. 1, the wood veneer panel of the embodiment of the present invention includes a wood veneer layer 100, an adhesive layer 200, a first fiber woven layer 300 and a second fiber woven layer 400, which are sequentially disposed, and the weaving density of the first fiber woven layer 300 is greater than that of the second fiber woven layer 400.

It can be understood that the conventional veneer has a non-woven fabric substrate attached to the back surface thereof, and the non-woven fabric is formed by first forming a web structure by orienting or randomly arranging textile short fibers or filaments and then reinforcing the web structure by mechanical, thermal bonding, chemical or other methods, and the fibers are arranged in a certain direction, so that the strength is low. When the plastic electric appliance shell is prepared through an injection molding process, the veneer is firstly paved in a mold and then injection molding is carried out, the injection molding pressure is high and can reach 500-1000 bar, and therefore the existing veneer is easily torn from the right-angle direction in the injection molding process. And the utility model discloses the veneer decorative board, first fiber weaving layer 300 and second fiber weaving layer 400 are the fabric of three-dimensional weaving, have the three-dimensional space molding, consequently first fiber weaving layer 300 and second fiber weaving layer 400 fiber weaving layer's macroscopic surface area is big, has excellent mechanical properties on each direction, when having solved wood veneer and moulding plastics in the mould, the problem of the easy fracture of tensile effect to the veneer is stronger with the direct cohesion of electrical apparatus shell's base member material.

It can be understood that the first fiber woven layer 300 is bonded with the wood veneer layer 100 through the adhesive layer 200, the weaving density of the first fiber woven layer 300 is larger than that of the second fiber woven layer 400, and after the first fiber woven layer 300 is bonded with the wood veneer layer 100, the strength of the wood veneer can be improved, and the wood veneer is guaranteed to be not easily torn.

It is understood that when the base material of the housing is plastic, the plastic housing is usually processed by injection molding. The veneer can be connected with the shell of the electric appliance through in-mold injection molding. Because the weaving density of second fibre weaving layer 400 is little for the density of first fibre weaving layer 300, and the three-dimensional structure of weaving is consequently loose relatively, and at the in-process of moulding plastics, the plastic melt infiltrates easily in the porous mesh structure of second fibre weaving layer 400 under the effect of injection moulding pressure, and the plastic melt solidifies in second fibre weaving layer 400 to adhesive force between the base member of veneer and electrical apparatus shell is stronger.

Referring to the process flow shown in fig. 2, the wood veneer is processed by selecting a suitable wood, cutting and cutting the wood, softening the wood by water boiling or steam, slicing the wood, drying the wood after cutting, and shearing to obtain the wood veneer 100. Then weave first fibre weaving layer 300 and second fibre weaving layer 400, later carry out laser and tailor, if necessary, can protect the veneer surface, then carry out the in-mould absorption and mould plastics, handle the back alright contain the electrical apparatus shell of veneer after the edge of veneer is handled at last, if necessary, in order to prevent fish tail and the clash joint in the handling, can protect again the panel surface and handle.

Specifically, in the processes of selecting, cutting and sectioning the wood, the selected wood is cut into a required length, and then the wood is selected according to a required pattern. The wood can be selected from nanmu, teak, ebony, oak, pear wood and other wood which can be used for processing, and can also be selected from nanmu bark, teak bark, ebony bark, oak bark, pear wood bark and other bark with beautiful patterns. The rotary cutter is used for rotating, and the slicing scheme is selected according to the diameter of the log, the texture of the wood and the fixing method of the wood square on the slicing machine, so that the width of the sliced veneer is not less than the design requirement. Preparing a single plate with the required size, and cutting the single plate into the required size. On the premise of obtaining the solid wood patterns, the veneer has certain flexibility, so that the installation and the modeling are convenient, the outturn percentage is high, and the appearance and the modeling of the prepared veneer are more attractive. Because the base body of the air-conditioning panel is mostly a curved surface, in order to improve the plasticity of wood, the wood can be steamed and boiled, and the temperature and the water content are adjusted to improve the plasticity of the wood. The treated veneer needs to be dried until the moisture content is between 9 and 12 percent, so that the veneer is convenient to store and is not easy to mildew.

It can be understood that the veneer is dried at the earlier stage, the size shrinkage generated by heating can be ignored, the shrinkage rate of plastics such as ABS in the injection molding process is 0.5-0.7%, therefore, in the injection molding process, the size of the veneer needs to be smaller than the size of a mold where the veneer is located by 0.03mm, so as to ensure that the veneer sheet is conveniently placed in the cavity and can be completely stretched, and if the veneer has wrinkles, the injection molded finished product has molding defects and the appearance effect is affected. The wood skin is completely spread, and the local extrusion deformation of the wood skin caused by injection molding shrinkage can be reduced.

In some embodiments, when the substrate material of the appliance panel is plastic, such as ABS, the ABS material is hygroscopic and requires a drying process prior to processing. The drying condition can be 80-90 ℃ and the minimum drying time is 2 h. The humidity of the material should be guaranteed to be less than 0.1%. The melting temperature is 210-280 ℃, and 245 ℃ is recommended. The temperature of the die is 25-70 ℃, and it can be understood that the temperature of the die influences the smoothness of the plastic part, and the lower temperature causes the smoothness to be lower. The injection pressure is 500 to 1000 bar. The injection speed is selected to be medium-high. By controlling the injection molding temperature and adjusting the melt fluidity to be more than 6g/10min, the ABS melt is fully filled in the second fiber weaving layer 400 at the back of the veneer, and the adhesive force between the veneer and the base material of the air-conditioning panel is more than 12N/25 mm.

It can be understood that the wood veneer can be dyed, woven, spliced and the like for enriching the appearance effect. The weaving means that each veneer at least comprises more than two veneers, the veneers are two layers, and the single veneers alternately appear on the upper layer and the lower layer of the two layers of veneers to realize the weaving effect. The splicing finger is formed by splicing at least two veneers, the two veneers are connected by a formaldehyde-free adhesive, and can be spliced after being processed into veneers or processed into veneers after being spliced.

It can be understood that when the base material of the electrical appliance shell is metal, the wood skin veneer can be connected with the electrical appliance shell through the adhesive, because the weaving density of the second fiber weaving layer 400 is smaller than that of the first fiber weaving layer 300, the three-dimensional weaving structure is relatively loose, in the process of coating the adhesive, the adhesive can be easily infiltrated into the mesh structure of the loose second fiber weaving layer 400, and the adhesive is solidified in the second fiber weaving layer 400, so that the adhesion between the wood skin veneer and the electrical appliance shell base body is stronger, and the process flow is simpler.

In some embodiments, the thickness of the veneer layer 100 is 0.01mm to 1.00 mm.

In some embodiments, the thickness of the veneer layer 100 is 0.01mm to 0.50 mm.

In some embodiments, the thickness of the veneer layer 100 is about 0.02 mm.

In some embodiments, the adhesive layer 200 is a high melt hot melt adhesive, such as 6111HT hot melt adhesive from 3M company.

In some embodiments, the first woven fiber layer 300 has a thickness of 15 μm to 200 μm.

In some embodiments, the first woven fiber layer 300 has a thickness of 50 μm to 100 μm.

In some embodiments, the second woven fiber layer 400 has a thickness of 50 μm to 500 μm.

In some embodiments, the second woven fiber layer 400 has a thickness of 100 μm to 300 μm.

In some embodiments, the diameter of the textile fiber bundles forming the first and second woven fiber layers 300 and 400 is 10 μm to 100 μm.

In some embodiments, the diameter of the textile fiber bundles forming first woven fiber layer 300 and second woven fiber layer 400 is about 10 μm.

In some embodiments, the size of the voids in the first woven fiber layer 300 is smaller than the diameter of the woven fiber bundle.

In some embodiments, the void size of the second woven fiber layer 400 is more than twice the diameter of the woven fiber bundle.

Void size refers to the maximum distance between two points at the edge of the void.

In some embodiments, the textile fiber bundles are fiber materials having a melting point greater than 200 ℃, such as PA (Polyamide, nylon, PA for short), PET (Polyethylene Terephthalate, PET for short), PBT (Polybutylene Terephthalate, PBT for short), or EP (Ethylene Propylene, epoxy, EP for short).

In some embodiments, first woven fiber layer 300 is a dense weave, such as a plain weave, in which the warp and weft yarns are interwoven in a regular pattern one over the other, which is a type of fabric that is strong, abrasion resistant, stiff, and flat. The second woven fiber layer 400 is continuously woven on the first woven fiber layer 300. The first fiber woven layer 300 and the second fiber woven layer 400 are connected by fiber bundles in a woven manner, and no obvious separation interface exists between the two layers. The second woven fiber layer 400 contains large voids therein, the void size of which is greater than twice the diameter of the woven fiber bundle. The tensile strength of the first woven fiber layer 300 in both the transverse direction and the longitudinal direction is greater than 1200 bar.

Referring to fig. 3 and 4, which are plan views of two sets of braided structures, 500 is a braided portion and 600 is a hollow region in fig. 3 and 4.

In some embodiments, the carbon fiber yarns are distributed in the textile fiber bundle, and the carbon fiber yarns can enhance the strength of the textile fiber bundle.

In some embodiments, the carbon fiber filaments are added to the textile fiber bundles in an amount of 1% to 10%.

In some embodiments, the carbon fiber filaments have a diameter of 1 μm to 15 μm.

In some embodiments, the carbon fiber filaments have a diameter of about 7 μm.

In comparative example 1, an electrical appliance housing containing a veneer was prepared, specifically: spreading 0.02mm solid wood veneer and a non-woven fabric substrate in a mold, and performing injection molding on ABS (acrylonitrile butadiene styrene) which is ABS resin D-1000 (Zhenjiangqi beautifying chemical Co., Ltd.), wherein the injection molding temperature is 210 ℃ and the fluidity MFR is 4.2g/10 min.

In comparative example 2, an electrical appliance housing containing a veneer was prepared, specifically: spreading 0.04mm solid wood veneer and a non-woven fabric substrate in a mold, and performing injection molding on ABS (acrylonitrile butadiene styrene) to obtain ABS resin D-1000 (Zhenjiangqi beautifying chemical Co., Ltd.), wherein the injection molding temperature is 220 ℃ and the fluidity MFR is 7.5g/10 min.

In example 1, an electrical appliance housing containing a veneer was prepared, specifically: the wood veneer decorative plate is characterized in that a wood veneer decorative plate comprising a first fiber woven layer 300 (the thickness is 20 mu m) and a second fiber woven layer 400 (the cavity is hexagonal, the maximum diagonal distance of the cavity is 50 mu m) which are woven by 0.02mm solid wood veneer and 1% carbon fiber reinforced PET fiber bundles (the diameter of the fiber bundles is 10 mu m) is selected, the wood veneer decorative plate is flatly laid in an injection mold, injection ABS (acrylonitrile butadiene styrene) is ABS resin D-1000 (Zhenjiang beautifying chemical Co., Ltd.), the injection temperature is 220 ℃, and the flowability MFR is 7.5g/10 min.

In example 2, an electrical enclosure containing a veneer was prepared, consisting of: the veneer decorative plate is characterized in that a veneer decorative plate comprising a first fiber woven layer 300 (the thickness is 20 mu m) and a second fiber woven layer 400 (the cavity is hexagonal, the maximum diagonal distance of the cavity is 50 mu m) which are woven by 0.02mm solid wood veneer and 1% carbon fiber reinforced PET fiber bundles (the diameter of the fiber bundles is 10 mu m) is flatly laid in an injection mold, injection ABS is ABS resin D-1000 (Zhenjiang beautifying chemical Co., Ltd.), the injection temperature is 225 ℃, and the flowability MFR is 8.5g/10 min.

In example 3, an electrical appliance housing containing a veneer was prepared, specifically: the wood veneer decorative plate is characterized in that a wood veneer decorative plate comprising a first fiber woven layer 300 (the thickness is 20 mu m) and a second fiber woven layer 400 (the cavity is hexagonal, the maximum diagonal distance of the cavity is 50 mu m) which are woven by 0.02mm solid wood veneer and 1% carbon fiber reinforced PET fiber bundles (the diameter of the fiber bundles is 10 mu m) is selected, the wood veneer decorative plate is flatly laid in an injection mold, injection ABS (acrylonitrile butadiene styrene) is ABS resin D-1000 (Zhenjiang beautifying chemical Co., Ltd.), the injection temperature is 230 ℃, and the flowability MFR is 10.5g/10 min.

In example 4, an electrical appliance housing containing a veneer was prepared, specifically: the wood veneer decorative plate is characterized in that a wood veneer decorative plate comprising a first fiber woven layer 300 (the thickness is 20 mu m) and a second fiber woven layer 400 (the cavity is hexagonal, the maximum diagonal distance of the cavity is 50 mu m) which are woven by 0.02mm solid wood veneer and 1% carbon fiber reinforced PET fiber bundles (the diameter of the fiber bundles is 10 mu m) is selected, the wood veneer decorative plate is flatly laid in an injection mold, injection ABS (acrylonitrile butadiene styrene) is ABS resin D-1000 (Zhenjiang beautifying chemical Co., Ltd.), the injection temperature is 235 ℃, and the flowability MFR is 12g/10 min.

The properties of the veneer sheets on the outer cases of electric appliances prepared in comparative examples 1 and 2, and examples 1 to 4, such as transverse tensile strength, longitudinal tensile strength, adhesion between the veneer sheets and ABS, were tested, and the results are shown in table 1. The test of tensile strength is based on GB/T1040.3 determination of tensile Property of plastics part 3: test conditions for films and sheets, the width of the tensile specimen was 20mm and the thickness was 0.2 mm. The test of the adhesion is based on GB/T9286 test of marking out of paint films of colored paint and varnish.

TABLE 1

Can see from the test result of table 1, the utility model discloses the veneer of veneer + non-woven structure is compared to the veneer of veneer, and horizontal tensile strength is showing the reinforcing with vertical tensile strength, and adhesive force between veneer layer 100 and the basement ABS material is showing the increase to, the crackle does not appear in tensile in-process veneer, is difficult for the fracture.

The embodiment of the utility model provides an electric appliance is provided to the second aspect, and this electric appliance contains foretell veneer.

In some embodiments, the appliance is an air conditioner.

The air conditioner uses the utility model discloses the outward appearance of air conditioner can be richened to the veneer, promotes the aesthetic nature of air conditioner.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. The veneer is characterized by comprising a veneer layer, an adhesive layer, a first fiber weaving layer and a second fiber weaving layer which are sequentially arranged, wherein the weaving density of the first fiber weaving layer is greater than that of the second fiber weaving layer.

2. The veneer of claim 1, wherein the veneer layer has a thickness of 0.01 to 1.00 mm.

3. The veneer panel according to claim 1, wherein the thickness of the first woven fiber layer is 15 to 200 μm.

4. The veneer panel according to claim 1, wherein the second woven fiber layer has a thickness of 50 to 500 μm.

5. The wood skin veneer according to claim 1, wherein the diameter of the textile fiber bundles forming the first fiber woven layer and the second fiber woven layer is 10 μm to 100 μm.

6. The wood skin veneer of claim 5, wherein a size of the voids in the first woven fiber layer is smaller than a diameter of the textile fiber bundles.

7. The wood skin veneer of claim 5, wherein the size of the voids in the second woven fiber layer is more than twice the diameter of the textile fiber bundles.

8. The veneer panel according to claim 5, wherein carbon fiber yarns are distributed in the textile fiber bundles.

9. An electrical appliance comprising a veneer panel according to any one of claims 1 to 8.

10. The appliance according to claim 9, characterized in that the appliance is an air conditioner.

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