CN212400519U - Double-layer aluminum substrate bending-resistant structure - Google Patents
Double-layer aluminum substrate bending-resistant structure Download PDFInfo
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- CN212400519U CN212400519U CN202020552558.1U CN202020552558U CN212400519U CN 212400519 U CN212400519 U CN 212400519U CN 202020552558 U CN202020552558 U CN 202020552558U CN 212400519 U CN212400519 U CN 212400519U
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Abstract
The utility model provides a double-deck aluminium base board bending resistance structure, includes first aluminium base, the fixed network, second aluminium base, first insulating layer, first copper foil layer, second insulating layer and second copper foil layer, and the fixed network is installed between first aluminium base and second aluminium base, and first insulating layer is installed on first aluminium base, and first copper foil layer is installed on first insulating layer, and the second insulating layer is installed on second aluminium base, and the second copper foil layer is then installed on the second insulating layer. First aluminum base piece and second aluminum base piece utilize the fixed network to fix for a whole, can effectively improve the structural strength of first aluminum base piece and second aluminum base piece, and the bending resistance of the anti bending structure of double-deck aluminium base board is effectively strengthened to the closely laminated structure of first aluminum base piece and first insulating layer simultaneously to and the closely laminated structure of second aluminum base piece and second insulating layer.
Description
Technical Field
The utility model relates to a technical field of aluminium base board especially relates to an anti bending structure of double-deck aluminium base board.
Background
The aluminum substrate is a metal-based copper-clad plate with good heat dissipation function, and a single-sided plate generally comprises a three-layer structure, namely a copper foil layer, an insulating layer and a metal base layer. The high-end use is also designed to be a double-sided board, and the structure of the double-sided board is a copper foil layer, an insulating layer, an aluminum base layer, an insulating layer and a copper foil layer. Very few applications are multilayer boards. In a general double-layer board, two side surfaces of an aluminum base layer are respectively pasted with an insulating layer, and then two outer side surfaces of the two insulating layers are respectively pasted with a copper foil layer.
For the aluminum substrate, because of the block structure, there is a problem of warping degree, if the warping degree of the aluminum substrate is too large, normal production cannot be performed, and especially, as the number of layers of the aluminum substrate increases, the requirement for the warping degree of the aluminum substrate is higher.
However, in the conventional double-layer aluminum substrate, the aluminum base layer does not have a corresponding anti-bending structure, which easily causes the double-layer aluminum substrate to be easily deformed, so that the warpage of the aluminum substrate is too high, and the aluminum substrate cannot be normally produced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing an anti bending structure of double-deck aluminium base board, can effectively improve the structural strength of double-deck aluminium base board, prevent that aluminium base board from taking place to warp, effectively improve the bending resistance of aluminium base board.
The purpose of the utility model is realized through the following technical scheme:
a dual layer aluminum substrate bend resistant structure comprising:
a first aluminum substrate comprising a first aluminum base and a plurality of first bosses, each of the plurality of first bosses being disposed on the first aluminum base;
the fixing net is provided with a plurality of accommodating grooves, the fixing net is attached to the first aluminum substrate, and the first bosses are correspondingly positioned in the accommodating grooves one by one;
the second aluminum substrate comprises a second aluminum substrate and a plurality of second bosses, the second bosses are respectively arranged on the second aluminum substrate, the second aluminum substrate is attached to one surface, away from the first aluminum substrate, of the fixing net, and the second bosses are correspondingly positioned in the accommodating grooves one by one;
a first insulating layer disposed on a side of the first aluminum substrate remote from the fixing mesh;
a first copper foil layer disposed on the first insulating layer;
the second insulating layer is arranged on one side surface, away from the fixing net, of the second aluminum substrate;
a second copper foil layer disposed on the second insulating layer.
In one embodiment, the fixed mesh is a steel mesh.
In one embodiment, the first aluminum substrate and the first bosses are integrally formed.
In one embodiment, the gap between the fixing net and the first and second aluminum substrates is filled with an adhesive.
In one embodiment, the first aluminum substrate has a thickness of 0.5mm to 1.4 mm.
In one embodiment, the first aluminum substrate has a thickness of 1.0 mm.
In one embodiment, the second aluminum matrix has a thickness equal to the thickness of the first aluminum matrix.
In one embodiment, the first and second insulating layers are epoxy layers.
In one embodiment, a plurality of grooves are formed on a sidewall of the first aluminum substrate contacting the first insulating layer, and a space is disposed between the plurality of grooves.
In one embodiment, a plurality of protruding portions are disposed on a side wall of the first insulating layer, and the protruding portions are respectively accommodated in the grooves in a one-to-one correspondence manner.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model discloses an anti bending structure of double-deck aluminium base board, including first aluminium base, fixed network, second aluminium base, first insulation layer, first copper foil layer, second insulation layer and second copper foil layer, the fixed network is installed between first aluminium base and second aluminium base, and the first insulation layer is installed on first aluminium base, and first copper foil layer is installed on the first insulation layer, and the second insulation layer is installed on second aluminium base, and the second copper foil layer is then installed on the second insulation layer. First aluminum base piece and second aluminum base piece utilize the fixed network to fix for a whole, can effectively improve the structural strength of first aluminum base piece and second aluminum base piece, and the bending resistance of the anti bending structure of double-deck aluminium base board is effectively strengthened to the closely laminated structure of first aluminum base piece and first insulating layer simultaneously to and the closely laminated structure of second aluminum base piece and second insulating layer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a double-layer aluminum substrate bending-resistant structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a partial structure of the dual-layer aluminum substrate shown in FIG. 1;
FIG. 3 is a schematic view of a partial structure of a fixing net of the double-layer aluminum substrate bending-resistant structure shown in FIG. 1;
FIG. 4 is another partial structural view of the dual-layer aluminum substrate of FIG. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is noted that as used herein, reference to an element being "connected" to another element also means that the element is "in communication" with the other element, and fluid can be in exchange communication between the two.
Referring to fig. 1, a bending resistant structure 10 of a dual-layer aluminum substrate includes a first aluminum substrate 100, a fixing net 200, a second aluminum substrate 300, a first insulating layer 400, a first copper foil layer 500, a second insulating layer 600 and a second copper foil layer 700, wherein the fixing net 200 is installed between the first aluminum substrate 100 and the second aluminum substrate 300, the first insulating layer 400 is installed on the first aluminum substrate 100, the first copper foil layer 500 is installed on the first insulating layer 400, the second insulating layer 600 is installed on the second aluminum substrate 300, and the second copper foil layer 700 is installed on the second insulating layer 600. The first aluminum substrate 100 and the second aluminum substrate 300 are fixed into a whole by the fixing net 200, so that the structural strength of the first aluminum substrate 100 and the second aluminum substrate 300 is effectively improved, and the bending resistance of the double-layer aluminum substrate bending-resistant structure 10 is effectively enhanced.
Referring to fig. 2, the first aluminum substrate 100 includes a first aluminum substrate 110 and a plurality of first bosses 120, wherein the plurality of first bosses 120 are respectively disposed on the first aluminum substrate 110.
It should be noted that the plurality of first bosses 120 are spaced apart from each other on the first aluminum substrate 110, and a distance is maintained between the first bosses 120, in one embodiment, the first aluminum substrate 110 and the plurality of first bosses 120 are formed as a single-piece structure, and specifically, unnecessary portions of the first aluminum substrate 110 may be milled by a milling machine to protrude the plurality of first bosses 120.
Referring to fig. 3, a plurality of receiving grooves 210 are formed on the fixing net 200, the fixing net 200 is attached to the first aluminum substrate 110, and the first bosses 120 are correspondingly located in the receiving grooves 210.
It should be noted that, the fixing net 200 is attached to the first aluminum substrate 110 by fastening the fixing net 200 on the side surface on which the first bosses 120 are mounted, and the first bosses 120 are respectively accommodated in the accommodating grooves 210 in a one-to-one correspondence manner, and the thickness of the fixing net 200 is twice the height of the first bosses 120, in an embodiment, the contact portion between the fixing net 200 and the first aluminum substrate 110 is coated with an adhesive, so that the fixing net 200 and the first aluminum substrate 110 can be fixed as a whole, and the structural strength of the first aluminum substrate 110 is effectively enhanced.
Referring to fig. 4, the second aluminum substrate 300 includes a second aluminum substrate 310 and a plurality of second bosses 320, the plurality of second bosses 320 are respectively disposed on the second aluminum substrate 310, the second aluminum substrate 310 is attached to a surface of the fixing mesh 200 away from the first aluminum substrate 110, and the second bosses 320 are correspondingly disposed in the accommodating grooves 210.
It should be noted that the second bosses 320 are respectively disposed on the second aluminum substrate 310, in an embodiment, the second bosses 320 and the second aluminum substrate 310 are integrally formed, and the distance between the second bosses 320 is equal to the distance between the receiving slots 210 on the fixing mesh 200, such that when the second aluminum substrate 310 is fastened to the fixing mesh 200, the second bosses 320 can be respectively received between the receiving slots 210 in a one-to-one correspondence, in an embodiment, the height of the first bosses 120 is equal to the height of the second bosses 320, when the second aluminum substrate 310 is fastened to the fixing mesh 200, the first bosses 120 and the second bosses 320 can fill the receiving slots 210, the second aluminum substrate 310 can be tightly adhered to the fixing mesh 200, and since the height of the first bosses 120 is equal to the height of the second bosses 320, the first aluminum substrate 110 and the second aluminum substrate 310 are more stable with respect to the fixing mesh 200 sandwiched therebetween, therefore, the structural strength is effectively improved, the heat dissipation effects of the two sides of the fixing net 200 are consistent, and heat conduction is facilitated, in one embodiment, the contact part between the second aluminum substrate 310 and the fixing net 200 is also coated with an adhesive, so that the second aluminum substrate 310 and the fixing net 200 are fixed into a whole, and thus, the adhesive is used to fix the second aluminum substrate 310, the fixing net 200 and the first aluminum substrate 110 into a whole, so that the structural strength is effectively enhanced, and the bending resistance is improved.
In one embodiment, the first bosses 120, the second bosses 320, and the receiving grooves 210 are square structures, which can effectively improve the stability of the first aluminum substrate 110, the second aluminum substrate 310, and the fixing net 200.
Referring to fig. 1 again, the first insulating layer 400 is disposed on a side of the first aluminum substrate 110 away from the fixing mesh 200, the first copper foil layer 500 is disposed on the first insulating layer 400, the second insulating layer 600 is disposed on a side of the second aluminum substrate 310 away from the fixing mesh 200, and the second copper foil layer 700 is disposed on the second insulating layer 600.
It should be noted that, because the first aluminum substrate 110 and the second aluminum substrate 310 are fixed together by the fixing net 200, the bending resistance is effectively improved, so that the first insulating layer 400 installed on the first aluminum substrate 110 and the second insulating layer 600 installed on the second aluminum substrate 310 can maintain good stability, and further the first copper foil layer 500 installed on the first insulating layer 400 and the second copper foil layer 700 installed on the second insulating layer 600 can maintain good stability, so that the problem of circuit layer peeling during the subsequent double-layer aluminum substrate bending resistant structure 10 is effectively prevented, in one embodiment, the first insulating layer 400 is fixed on the first aluminum substrate 110 by an adhesive, the first copper foil layer 500 is fixed on the first insulating layer 400 by an adhesive, and the second insulating layer 600 is fixed on the second aluminum substrate 310 by an adhesive, the second copper foil layer 700 is fixed on the second insulation layer 600 using an adhesive.
In one embodiment, the first aluminum substrate 110 has a thickness of 0.5mm to 1.4mm, and specifically, the first aluminum substrate 110 has a thickness of 1.0mm, and the second aluminum substrate 310 has a thickness equal to the thickness of the first aluminum substrate 110. It should be noted that the thickness of the second aluminum substrate 310 is equal to that of the first aluminum substrate 110, so that the first aluminum substrate 110 and the second aluminum substrate 310 are fixed by the fixing net 200, and the distances between the fixing net 200 and the first aluminum substrate 110 and the second aluminum substrate 310 on both sides are consistent, so that the stresses on both sides of the fixing net 200 are consistent, and the bending resistance can be effectively improved.
In one embodiment, the first insulating layer 400 and the second insulating layer 600 are epoxy resin layers. It should be noted that the epoxy resin layer can maintain high thermal conductivity while ensuring electrical insulation performance of the first and second insulation layers 400 and 600, so that heat of the electronic devices attached to the first and second copper foil layers 500 and 700 can be rapidly transferred to the first and second aluminum substrates 100 and 300, thereby improving thermal conductivity.
Referring to fig. 2 again, a plurality of grooves 111 are formed on the sidewall of the first aluminum substrate 110 contacting the first insulating layer 400, a space is formed between the grooves 111, a plurality of protrusions 410 are formed on the sidewall of the first insulating layer 400, and the protrusions 410 are respectively and correspondingly received in the grooves 111. It should be noted that the extension lines of the plurality of grooves 111 are parallel, so as to effectively improve the structural strength of the first aluminum substrate 110, and thus effectively improve the bending resistance, and furthermore, the plurality of protrusions 410 disposed on the sidewall of the first insulating layer 400 and matching with the grooves 111 effectively prevent the first insulating layer 400 from peeling off from the first aluminum substrate 110, and on the other hand, also enhance the lateral structural strength of the first insulating layer 400.
Referring to fig. 1 and 4 again, in one embodiment, the portion of the second aluminum substrate 310 in contact with the second insulating layer 600 has a matching structure identical to the first aluminum substrate 110 and the first insulating layer 400, specifically, the second aluminum substrate 310 has a plurality of avoiding grooves 311, the second insulating layer 600 has a plurality of protrusions 610, and the plurality of protrusions 610 are respectively and correspondingly received in the plurality of avoiding grooves 311. It should be noted that the extension lines of the plurality of avoiding grooves 311 are parallel, and the extension lines of the avoiding grooves 311 are perpendicular to the extension lines of the grooves 111, so as to further improve the structural strength of the dual-layer aluminum substrate bending-resistant structure 10 and effectively improve the bending resistance.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model discloses an anti bending structure of double-deck aluminium base board, including first aluminium base, fixed network, second aluminium base, first insulation layer, first copper foil layer, second insulation layer and second copper foil layer, the fixed network is installed between first aluminium base and second aluminium base, and the first insulation layer is installed on first aluminium base, and first copper foil layer is installed on the first insulation layer, and the second insulation layer is installed on second aluminium base, and the second copper foil layer is then installed on the second insulation layer. First aluminum base piece and second aluminum base piece utilize the fixed network to fix for a whole, can effectively improve the structural strength of first aluminum base piece and second aluminum base piece, and the bending resistance of the anti bending structure of double-deck aluminium base board is effectively strengthened to the closely laminated structure of first aluminum base piece and first insulating layer simultaneously to and the closely laminated structure of second aluminum base piece and second insulating layer.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An anti-bending structure of a double-layer aluminum substrate is characterized by comprising:
a first aluminum substrate comprising a first aluminum base and a plurality of first bosses, each of the plurality of first bosses being disposed on the first aluminum base;
the fixing net is provided with a plurality of accommodating grooves, the fixing net is attached to the first aluminum substrate, and the first bosses are correspondingly positioned in the accommodating grooves one by one;
the second aluminum substrate comprises a second aluminum substrate and a plurality of second bosses, the second bosses are respectively arranged on the second aluminum substrate, the second aluminum substrate is attached to one surface, away from the first aluminum substrate, of the fixing net, and the second bosses are correspondingly positioned in the accommodating grooves one by one;
a first insulating layer disposed on a side of the first aluminum substrate remote from the fixing mesh;
a first copper foil layer disposed on the first insulating layer;
the second insulating layer is arranged on one side surface, away from the fixing net, of the second aluminum substrate;
a second copper foil layer disposed on the second insulating layer.
2. The double-layer aluminum substrate bending-resistant structure as claimed in claim 1, wherein the fixing net is a steel net.
3. The dual-layer aluminum substrate bending resistant structure as claimed in claim 1, wherein the first aluminum substrate and the first bosses are integrally formed.
4. The double-layer aluminum substrate bending-resistant structure as claimed in claim 1, wherein gaps between the fixing net and the first and second aluminum substrates are filled with an adhesive.
5. The dual-layer aluminum substrate bending resistant structure of claim 1, wherein the thickness of the first aluminum matrix is 0.5mm to 1.4 mm.
6. The dual layer aluminum substrate bending resistant structure of claim 5, wherein the thickness of the first aluminum matrix is 1.0 mm.
7. The dual-layer aluminum substrate bending resistant structure of claim 6, wherein the thickness of the second aluminum substrate is equal to the thickness of the first aluminum substrate.
8. The dual-layer aluminum substrate bending resistant structure of claim 1, wherein the first insulating layer and the second insulating layer are epoxy resin layers.
9. The double-layer aluminum substrate bending resistant structure as claimed in claim 1, wherein a plurality of grooves are formed on a side wall of the first aluminum substrate contacting the first insulating layer, and a space is provided between the plurality of grooves.
10. The double-layer aluminum substrate bending resistant structure as claimed in claim 9, wherein a plurality of protrusions are disposed on the sidewall of the first insulating layer, and the plurality of protrusions are respectively received in the plurality of grooves in a one-to-one correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020552558.1U CN212400519U (en) | 2020-04-14 | 2020-04-14 | Double-layer aluminum substrate bending-resistant structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020552558.1U CN212400519U (en) | 2020-04-14 | 2020-04-14 | Double-layer aluminum substrate bending-resistant structure |
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| Publication Number | Publication Date |
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| CN212400519U true CN212400519U (en) | 2021-01-26 |
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| CN202020552558.1U Active CN212400519U (en) | 2020-04-14 | 2020-04-14 | Double-layer aluminum substrate bending-resistant structure |
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