CN214045805U - Composite backboard and television - Google Patents
Composite backboard and television Download PDFInfo
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- CN214045805U CN214045805U CN202023083228.1U CN202023083228U CN214045805U CN 214045805 U CN214045805 U CN 214045805U CN 202023083228 U CN202023083228 U CN 202023083228U CN 214045805 U CN214045805 U CN 214045805U
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Abstract
The utility model discloses a compound backplate and TV, wherein, compound backplate is including the first metal sheet, connecting plate, second metal sheet and the base plate that bond in proper order. The utility model discloses a composite backboard obtains more excellent material performance through increasing the constitution material, sets up the connecting plate between first metal sheet and second metal sheet, can improve composite backboard's rigidity and bending elasticity, and the base plate can make the heat dispersion on the composite backboard more even, is favorable to the heat dissipation with higher speed, and these characteristics provide a fine assurance for the backplate that is used for the TV that the rigidity is enough more frivolous, the heat conductivity is better.
Description
Technical Field
The utility model relates to a TV technical field especially relates to a compound backplate and TV.
Background
With the development of the times and the progress of science and technology, the requirements of people on the television are not only limited to functional use, but also increasingly high in the appearance of the television, the current technology is commonly used as a flat panel television, and the research direction of the flat panel television gradually trends towards the trend of 'super large, ultrathin and no rib on the appearance surface' in recent years.
However, the conventional television rear part is usually covered by a large plastic rear shell, or a sheet metal back plate is matched with a small plastic rear shell, and when the design size of the rear plate is larger, the rear plate is thinner and has no ribs in order to meet the appearance requirement, the problems of rigidity reduction, poor heat dissipation performance and the like of the rear plate structure are inevitably brought, so that the mechanical property of the whole television is reduced.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned prior art not enough, the utility model aims at providing a compound backplate and TV aims at solving the problem that the design for satisfying the appearance requirement leads to the mechanical properties of TV to descend.
The technical scheme of the utility model as follows:
a composite backboard is used for a television, and comprises a first metal plate, a connecting plate, a second metal plate and a base plate which are sequentially bonded.
The composite back plate, wherein the first metal plate is one or more of electrolytic lead galvanized steel plate, hot-dip galvanized steel plate and stainless steel plate; and/or the tensile modulus of the first metal plate is more than 200 gigapascals, and the thickness of the first metal plate is 0.2mm-0.6 mm.
The composite backboard is characterized in that the connecting plate is one or more of a glass fiber plate, a carbon fiber plate and a polyethylene resin plate containing flame retardant materials; and/or the thickness of the connecting plate is 0.8mm-2 mm.
The composite back plate, wherein the second metal plate is an electrolytic lead-free galvanized steel plate or a hot-dip galvanized steel plate; and/or the tensile modulus of the second metal plate is more than 200 gigapascals, and the thickness of the second metal plate is 0.2mm-0.6 mm.
The composite backboard is characterized in that the substrate is an aluminum metal plate or an aluminum-based circuit board; and/or the tensile modulus of the substrate is more than 70 gigapascals, and the thickness of the substrate is 0.4mm-0.8 mm.
The composite backboard is characterized in that a first bonding layer is arranged between the first metal plate and the connecting plate, a second bonding layer is arranged between the connecting plate and the second metal plate, and the thickness of the first bonding layer and the thickness of the second bonding layer are both 0.05mm-0.2 mm.
The composite back plate is characterized in that the first bonding layer and the second bonding layer are one or more of a polyurethane resin glue layer, an epoxy resin glue layer and a double-sided glue layer.
The composite back plate is characterized in that a third bonding layer is arranged between the second metal plate and the substrate.
The composite backboard is characterized in that a surface decoration layer is further arranged on one side, deviating from the connecting plate, of the first metal plate.
The application also discloses a television, wherein the composite back panel comprises the composite back panel.
Compared with the prior art, the embodiment of the utility model provides a have following advantage:
according to the composite back plate, the connecting plate is arranged between the first metal plate and the second metal plate, so that the rigidity of the composite back plate is increased, the requirements on the thicknesses of the first metal plate and the second metal plate in the manufacturing process of the composite back plate are reduced, and the production cost is reduced; the first metal plate and the second metal plate are connected by the connecting plate, so that the overall connecting strength of the composite back plate is improved, and the bending elasticity is better; moreover, the heat on the electrical components inside the television can be dispersed and transferred to the second metal plate through the substrate, and the thinner second metal plate and the thinner first metal plate are both beneficial to the transfer of the heat, so that the heat dissipation of the composite back plate is accelerated; due to the characteristics, the composite back plate can meet the appearance requirements of large size, light weight, thinness and no ribs of a television, so that the whole television has enough structural stability and can reach the normal use standard of electric appliances.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the composite back plate of the present invention.
10, a first metal plate; 20. a connecting plate; 30. a second metal plate; 40. a substrate; 50. a first adhesive layer; 60. a second adhesive layer; 70. a third adhesive layer; 80. and (7) a surface decoration layer.
Detailed Description
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
At present, the traditional LCD TV backplate is formed by combining a plastic shell or plastic and a galvanized iron plate, the thickness of the TV is generally between 5-10 cm, and along with the increasingly high requirements of people on the appearance of the TV, the development of the direction of 'super-large, ultrathin and no rib' on the appearance surface is more and more inclined, the new generation TV backplate generally adopts an aluminum-plastic plate with the thickness of 2-3 mm, in the flat-panel TV, the backplate is the most key core structural member, the function of a framework is played in the whole structural member of the flat-panel TV, the strength and the quality directly determine the performance of the TV, and the method of the commonly used backplate at present has two types: firstly, the metal plate stamping back plate is the most traditional and widely applied, and the most mature realization form of the prior art has high precision and good strength, but has slow heat dissipation and poor heat conductivity; and secondly, injection molding of the back plate. The back plate has low cost, low precision, poor strength, no application to high-end large-size products, and high thickness with the same rigidity although the heat conduction and the density are low.
Therefore, the existing tv back plate cannot well meet the requirements of large size, light weight and thin appearance, and if a sufficient size is pursued, the mechanical property of the whole tv is reduced, the structure cannot be kept stable enough, and the use may be affected.
Referring to fig. 1, in an embodiment of the present invention, a composite backboard is disclosed for a television, wherein the composite backboard comprises a first metal plate 10, a connecting plate 20, a second metal plate 30 and a substrate 40 which are bonded in sequence.
According to the composite back plate, the connecting plate is arranged between the first metal plate and the second metal plate, so that the rigidity of the composite back plate is increased, the requirements on the thicknesses of the first metal plate and the second metal plate in the manufacturing process of the composite back plate are reduced, and the production cost is reduced; the first metal plate and the second metal plate are connected by the connecting plate, so that the overall connecting strength of the composite back plate is improved, and the bending elasticity is better; moreover, the heat on the electrical components inside the television can be dispersed and transferred to the second metal plate through the substrate, and the thinner second metal plate and the thinner first metal plate are both beneficial to the transfer of the heat, so that the heat dissipation of the composite back plate is accelerated; due to the characteristics, the composite back plate can meet the appearance requirements of large size, light weight, thinness and no ribs of a television, so that the whole television has enough structural stability and can reach the normal use standard of electric appliances.
Specifically, as an implementation manner of the present embodiment, it is disclosed that the first metal plate 10 is one or more of an electrolytic lead-free galvanized Steel (SECC) plate, a hot-dip galvanized Steel (SGCC) plate, and a stainless steel (SUS430) plate; the second metal plate 30 is an electrolytic lead-free galvanized steel plate or a hot-dip galvanized steel plate; the iron-based material has excellent thermal conductivity, is convenient and rapid for heat transfer, can ensure that the heat on the first metal plate 10 and the second metal plate 30 is smoothly conducted, has high density of the steel plate, can keep higher rigidity even if the thicknesses of the first metal plate 10 and the second metal plate 30 are smaller, and provides enough mechanical strength support for the whole composite back plate; in addition, the tensile modulus of the first metal plate 10 is greater than 200 gigapascals (GPa), the tensile modulus of the second metal plate 30 is also greater than 200 gigapascals, and the tensile modulus of the first metal plate 10 and the tensile modulus of the second metal plate 30 are large enough, so that the composite backboard is not easy to deform, the shape of the composite backboard can be kept unchanged, and the electric elements in the television can be stably supported, so that the television can be normally played.
Specifically, as an implementation manner of the present embodiment, it is disclosed that the connection plate 20 is one or more of a glass fiber plate, a carbon fiber plate, and a polyethylene resin plate containing a flame retardant material. The glass fiber board, the carbon fiber board and the polyethylene resin board are all made of high polymer materials, have good bending elasticity and mechanical strength, and are connected into a whole by the adhesive when the composite backboard is manufactured, so that the thickness of the composite backboard is increased, the rigidity of the composite backboard is increased, the composite backboard is not easy to deform, the bending elasticity of the composite backboard can be increased, and the composite backboard is not easy to break; moreover, the first metal plate and the second metal plate are firmly connected with the connecting plate made of the nonmetal material, so that the stability of the composite backboard structure can be improved; in addition, glass fiber, carbon fiber, and polyester containing a fire retardant material can transfer heat more rapidly, and transfer heat from the second metal plate 30 to the first metal plate 10 rapidly. The flame retardant material added to the polyethylene resin sheet containing a flame retardant material in this example may be magnesium hydroxide (Mg (OH)2) Or calcium carbonate (Ca)2CO3) And the like.
Specifically, as an implementation manner of the present embodiment, it is disclosed that the substrate 40 is an aluminum metal plate or an aluminum-based circuit board; the substrate 40 is arranged on one side of the television facing the electrical element, so that an aluminum-based circuit board can be arranged, the thermal resistance is reduced, the heat dissipation speed of the electrical element is improved, and the rigidity of the composite back plate is increased; or an aluminum plate, the grade can be one of 1 series, 3 series or 5 series, so that the heat generated on the electrical element is transmitted to the substrate 40 in time and further transmitted to the second metal layer; in addition, the substrate 40 has a tensile modulus of more than 70 gpa, which is not higher than the first metal plate 10 and the second metal plate 30, but has a certain rigidity, so that the rigidity of the composite back plate can be enhanced, and the composite back plate can be stably connected to the electric device without being deformed or displaced when contacting the structural members in the television.
Specifically, as an implementation manner of the present embodiment, it is disclosed that the thickness of the first metal plate 10 is 0.2mm to 0.6 mm; the thickness of the second metal plate 30 is 0.2mm to 0.6 mm; the thickness of the connecting plate 20 is 0.8mm-2 mm; the thickness of the substrate 40 is 0.4mm-0.8 mm. The first metal plate 10, the second metal plate 30, the connecting plate 20 and the substrate 40 are arranged to be thinner, so that the overall thickness of the composite back plate is controlled to be 1.6mm-4mm, which is more light and thin compared with the back plate of the current common television.
As shown in fig. 1, as an implementation manner of this embodiment, it is disclosed that a first adhesive layer 50 is disposed between the first metal plate 10 and the connecting plate 20, a second adhesive layer 60 is disposed between the connecting plate 20 and the second metal plate 30, and the thicknesses of the first adhesive layer 50 and the second adhesive layer 60 are both 0.05mm to 0.2 mm. The first adhesive layer 50 and the second adhesive layer 60 are arranged to have smaller thicknesses, so that the adhesive layers are prevented from generating a heat insulation effect to hinder the heat dissipation of the composite back plate.
Specifically, as an implementation manner of the embodiment, it is disclosed that the first adhesive layer 50 and the second adhesive layer 60 are one or more of a polyurethane resin glue layer, an epoxy resin glue layer, and a double-sided adhesive layer. The heat generated by the electrical components is dissipated through the composite backboard, and needs to pass through the first adhesive layer 50 and the second adhesive layer 60, and the heat resistance of the polyurethane resin glue layer, the epoxy resin glue layer or the double-sided glue layer is good, so that in the process of television playing, the first adhesive layer 50 and the second adhesive layer 60 cannot age or lose efficacy due to frequent heat transfer, and the adhesion of the first metal plate 10, the connecting plate 20, the second metal plate 30 and the substrate 40 can be maintained, so that the phenomenon of natural cracking of the composite backboard in the long-term use process is reduced, and the mutual separation of the first metal plate 10, the connecting plate 20, the second metal plate 30 and the substrate 40 is reduced.
Referring to fig. 1, as an implementation manner of the present embodiment, it is disclosed that a third adhesive layer 70 is disposed between the second metal plate 30 and the substrate 40. The third adhesive layer 70 may be a double-sided adhesive layer. The second metal plate 30 and the substrate 40 are adhered by the double-sided adhesive tape, so that the connection is firm and stable, and the falling is not easy to occur.
Specifically, as an implementation manner of the present embodiment, it is disclosed that a surface decoration layer 80 is further disposed on a side of the first metal plate 10 away from the connection plate 20. Because first metal sheet 10 is the one deck at compound backplate outside, contacts with the air, so receive the influence of oxygen and steam in the air easily, also can collide with when carrying the TV in addition, so set up surface decoration layer 80, for example anti-oxidation coating, wear-resisting coating, anticorrosive coating, insulating coating etc. protect first metal sheet 10, and then avoid the air to contact second metal sheet 30, connecting plate 20 etc. prolong the effective life of compound backplate.
As another embodiment of the present application, there is also disclosed a television, including the composite backplane as described in any of the above.
As another embodiment of the present application, a method for manufacturing a composite back plate is also specifically disclosed. According to actual requirements, various processes can be selected for carrying out:
the first scheme is as follows:
when the composite structure formed by the first metal plate 10, the connecting plate 20 and the second metal plate 30 is the same as the conventional steel-plastic plate structure, the required steel-plastic plate can be manufactured by a tape coiling composite method, then the steel-plastic plate is cut into the composite back plate according to the required size, and then the substrate 40 is bonded on the second metal plate 30 by glue or double faced adhesive tape, so that the composite back plate in the scheme can be obtained.
Scheme II:
when the structure formed by combining the first metal plate 10, the connecting plate 20 and the second metal plate 30 cannot be manufactured by adopting a conventional steel-plastic plate manufacturing method of winding and continuous compounding, a single plate can be adopted for compounding; the method comprises the following steps: gluing the inner surface of the first metal plate 10, attaching the connecting plate 20 to the inner surface of the glued first metal plate 10, and pressing and curing; step two: coating glue on the surface of one side of the connecting plate 20, which is far away from the first metal plate 10, attaching the second metal plate 30 to the glue layer, and pressing and curing; step three: carrying out leveling treatment on the first metal plate 10, the connecting plate 20 and the second metal plate 30 which are adhered together; and step four, gluing and sticking double-sided adhesive to the surface of the flattened plate, and sticking the substrate 40 on the second metal plate 30 to obtain the composite material.
Specifically, as another embodiment of the present application, taking a 75-inch composite back plate as an example, one of specific material combination schemes is as follows: the first metal plate 10 is a PCM plate of an SECC-DX51D aluminum substrate, and the thickness is 0.4 mm; the connecting plate 20 is made of polyethylene plastic and has the thickness of 1.1 mm; the second metal plate 30 is a SECC-DX51D plate with the thickness of 0.4 mm; the substrate 40 is a 0.6mm aluminum-based circuit board; the total thickness of the glue layer is between 2.6mm and 2.7 mm; through practical tests, the test results are shown in the following table 1, and the rigidity of the 75-inch composite back plate of the scheme is equivalent to that of a 75-inch 4-mm aluminum-plastic plate, but no heat dissipation plate needs to be separately added compared with the conventional steel-plastic plate scheme. The combination utilizes the aluminum-based PCB to enhance the rigidity, saves the space and creates favorable conditions for thinning the whole machine.
TABLE 1
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The composite back plate is used for a television and is characterized by comprising a first metal plate, a connecting plate, a second metal plate and a base plate which are sequentially bonded.
2. The composite backing sheet of claim 1, wherein said first metal sheet is one or more of electrolytic lead-free galvanized steel sheet, hot-dip galvanized steel sheet, stainless steel sheet; and/or the tensile modulus of the first metal plate is more than 200 gigapascals, and the thickness of the first metal plate is 0.2mm-0.6 mm.
3. The composite backing sheet of claim 1, wherein the connecting sheet is one or more of a glass fiber sheet, a carbon fiber sheet, a polyethylene resin sheet containing a flame retardant material; and/or the thickness of the connecting plate is 0.8mm-2 mm.
4. The composite backing sheet of claim 1, wherein said second metal sheet is an electrolytic lead-free galvanized steel sheet or a hot-dip galvanized steel sheet; and/or the tensile modulus of the second metal plate is more than 200 gigapascals, and the thickness of the second metal plate is 0.2mm-0.6 mm.
5. The composite back sheet of claim 1, wherein the substrate is an aluminum metal sheet or an aluminum-based circuit board; and/or the tensile modulus of the substrate is more than 70 gigapascals, and the thickness of the substrate is 0.4mm-0.8 mm.
6. The composite back sheet according to claim 1, wherein a first adhesive layer is disposed between the first metal plate and the connecting plate, a second adhesive layer is disposed between the connecting plate and the second metal plate, and the thickness of each of the first adhesive layer and the second adhesive layer is 0.05mm to 0.2 mm.
7. The composite backsheet of claim 6, wherein the first adhesive layer and the second adhesive layer are one or more of a polyurethane resin glue layer, an epoxy resin glue layer, and a two-sided glue layer.
8. The composite back sheet of claim 1, wherein a third adhesive layer is disposed between the second metal sheet and the substrate.
9. A composite back sheet according to claim 1, wherein the first metal sheet is further provided with a surface decorative layer on a side thereof facing away from the connecting sheet.
10. A television comprising a composite back sheet according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023083228.1U CN214045805U (en) | 2020-12-18 | 2020-12-18 | Composite backboard and television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023083228.1U CN214045805U (en) | 2020-12-18 | 2020-12-18 | Composite backboard and television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214045805U true CN214045805U (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023083228.1U Active CN214045805U (en) | 2020-12-18 | 2020-12-18 | Composite backboard and television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214045805U (en) |
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- 2020-12-18 CN CN202023083228.1U patent/CN214045805U/en active Active
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