CN208046999U

CN208046999U - A kind of pcb board that insulating layer is not easily to fall off

Info

Publication number: CN208046999U
Application number: CN201820490406.6U
Authority: CN
Inventors: 蒋海雷
Original assignee: Guangdong Xiang Yi Dingsheng Co Ltd
Current assignee: Guangdong Xiang Yi Dingsheng Co Ltd
Priority date: 2018-04-08
Filing date: 2018-04-08
Publication date: 2018-11-02
Anticipated expiration: 2028-04-08

Abstract

The utility model discloses a kind of pcb boards that insulating layer is not easily to fall off, including aluminum base layer, the insulating layer being placed at the top of aluminum base layer and the line layer being placed at the top of insulating layer, further include：For the edge of a knife of cutting, there is copper billet in the both ends soldering of the edge of a knife；The protective layer being placed in outside the edge of a knife, the setting of protective layer is between aluminum base layer and insulating layer；Be coated on aluminum base layer, insulating layer and line layer surrounding bound edge, the outside of the inside of bound edge and protective layer forms enclosure space；It is equipped with adhesive layer in the enclosure space that bound edge and protective layer are formed.The surface of the utility model plate is provided with the edge of a knife; the later stage is facilitated to be processed pcb board; it is provided at both ends with copper billet in the edge of a knife; when cutter cuts pcb board in the edge of a knife, pcb board is protected by copper billet, reduces the risk that pcb board bursts apart; simultaneously; adhesive layer is provided between aluminum base layer and insulating layer, adhesive layer can greatly improve the fastness between insulating layer and aluminum base layer, reduce the probability of insulating layer and aluminium base layer separation.

Description

A kind of pcb board that insulating layer is not easily to fall off

Technical field

The utility model is related to a kind of pcb board, specially a kind of PCB plates that insulating layer is not easily to fall off.

Background technology

Pcb board, also known as printed circuit board are the suppliers of electronic component electrical connection.Its development has more than 100 years History；Its design is mainly layout design；Major advantage using circuit board is to greatly reduce the difference of wiring and assembly Mistake improves the gentle productive labor rate of Automated water.With the rapid development of electronics industry, integrated first device on monolithic pcb board Part is more and more, and electronic component at work, will produce certain heat, and in order to solve the heat dissipation problem of pcb board, aluminum substrate is just It arises, traditional insulating substrate is substituted for aluminium sheet by aluminum substrate, and by adding one between assist side layer and aluminum layer Layer insulating is obstructed, and not only can guarantee the normal use of pcb board, but also the heat conductivility that aluminium sheet can be utilized excellent, by PCB circuits The heat absorption generated on plate, and due to having added insulating layer between aluminum layer and pcb layer, if insulating layer and aluminum layer it Between generate and fall off, the heat dissipation performance of aluminum base layer can be largely effected on, on the other hand, on pcb board can there are the edge of a knife for processing, But in process, the both ends of the edge of a knife are easy to burst apart, and lead to substrate damage, therefore we make this improvement, propose one Kind insulating layer pcb board not easily to fall off.

Utility model content

Edge of a knife both ends easily burst apart, lead to substrate damage when to solve insulating layer of the existing technology easy to fall off, processing Defect, the utility model provide a kind of PCB plates that insulating layer is not easily to fall off.

In order to solve the above-mentioned technical problem, the utility model provides the following technical solution：

A kind of pcb board that insulating layer is not easily to fall off of the utility model, including aluminum base layer, the insulating layer that is placed at the top of aluminum base layer Line layer with being placed at the top of insulating layer further includes：

For the edge of a knife of cutting, the edge of a knife runs through line layer and insulating layer, and the edge of a knife is in strip, and the edge of a knife Cell wall be obliquely installed, have copper billet in the both ends soldering of the edge of a knife；

The protective layer being placed in outside the edge of a knife, the setting of the protective layer is between aluminum base layer and insulating layer；

Be coated on aluminum base layer, insulating layer and line layer surrounding bound edge, the inside of the bound edge and the outside shape of protective layer At enclosure space；

Be equipped with adhesive layer in the enclosure space that the bound edge and the protective layer are formed, the top of the adhesive layer with absolutely Edge layer is in contact, and the bottom of the adhesive layer is in contact with aluminum base layer.

Further, several convex blocks are provided in the aluminum base layer, insulating layer and insertion are run through in the top of the convex block To the inside of line layer.

Further, the equal roughening treatment in the top of the aluminum base layer and the bottom end of insulating layer.

Further, the surface of the line layer is provided with identification label, inner-concave of the identification label to line layer It falls into, and the coat of metal is coated on the surface of identification label.

Further, the aluminum base layer is aluminium sheet, and the thickness of the aluminum base layer is 200 μM, and the insulating layer is SH2000S types ground thermal resistance heat conductive insulating base material, and the thickness of insulating layer is 50 μM.

Further, the adhesive layer is FCT-730 type heat transfer double faced adhesive tapes.

Compared with prior art, the utility model has the advantages that：This kind of insulating layer pcb board not easily to fall off, The surface of plate is provided with the edge of a knife, and the later stage is facilitated to be processed pcb board, and copper billet is provided at both ends in the edge of a knife, when cutter is in knife When being cut to pcb board in mouthful, pcb board is protected by copper billet, reduces the risk that pcb board bursts apart, meanwhile, in aluminium base Adhesive layer is provided between layer and insulating layer, adhesive layer can greatly improve the fastness between insulating layer and aluminum base layer, reduce exhausted The probability of edge layer and aluminium base layer separation, in the horizontal, insulating layer are got up by bound edge and protective layer isolation, reduce insulating layer excessive glue Risk.

Description of the drawings

Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings：

Fig. 1 is a kind of agent structure schematic diagram for the pcb board that insulating layer is not easily to fall off of the utility model；

Fig. 2 is a kind of side structure schematic diagram for the pcb board that insulating layer is not easily to fall off of the utility model；

Fig. 3 is a kind of partial sectional view for the pcb board that insulating layer is not easily to fall off of the utility model.

In figure：1, aluminum base layer；2, insulating layer；3, line layer；4, the edge of a knife；5, copper billet；6, protective layer；7, bound edge；8, it bonds Layer；9, convex block；10, identification label.

Specific implementation mode

To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below In conjunction with specific implementation mode, the utility model is expanded on further.

As shown in Figs. 1-3, a kind of pcb board that insulating layer is not easily to fall off, including aluminum base layer 1, it is placed in the exhausted of the top of aluminum base layer 1 Edge layer 2 and the line layer 3 for being placed in 2 top of insulating layer further include：

For the edge of a knife 4 of cutting, the edge of a knife 4 runs through line layer 3 and insulating layer 2, and the edge of a knife 4 is in strip, and the cell wall of the edge of a knife 4 It is obliquely installed, has copper billet 5 in the both ends soldering of the edge of a knife 4；

The protective layer 6 being placed in outside the edge of a knife 4, the setting of protective layer 6 is between aluminum base layer 1 and insulating layer 2；

It is coated on the bound edge 7 of 3 surrounding of aluminum base layer 1, insulating layer 2 and line layer, the outside of the inside and protective layer 6 of bound edge 7 Form enclosure space；

It is equipped with adhesive layer 8, top and 2 phase of insulating layer of adhesive layer 8 in the enclosure space that bound edge 7 and protective layer 6 are formed Contact, the bottom of adhesive layer 8 is in contact with aluminum base layer 1.

Wherein, several convex blocks 9 are provided in aluminum base layer 1, the top of convex block 9 through insulating layer 2 and is embedded into line layer 3 Inside, convex block 9 is made of isolation material, and it is strong to enhance the structure between aluminum base layer 1, insulating layer 2 and line layer 3 by convex block 9 Degree and connective stability.

Wherein, the equal roughening treatment in the top of aluminum base layer 1 and the bottom end of insulating layer 2, by increasing surface roughness, surface Contact area bigger, the volume connective stability between reinforced insulation layer 2 and aluminum base layer 1.

Wherein, the surface of line layer 3 is provided with identification label 10, identifies inner recess of the label 10 to line layer 3, and It is coated with the coat of metal on the surface of identification label 10, pcb board is identified in machinery easy to process, while the identification label to invaginate 10 are more not easy to grind.

Wherein, aluminum base layer 1 is aluminium sheet, and the thickness of aluminum base layer 1 is 200 μM, and the heat dissipation heat conductivility of aluminium sheet is excellent, can The heat of 3 layers of generation of circuit is absorbed, the surface temperature of line layer 3 is reduced, to make pcb board that low-temperature condition be kept to make With, extend the service life of pcb board, for SH2000S types the thermal resistance heat conductive insulating base material of insulating layer 2, and the thickness of insulating layer 2 is 50 μM, this kind of insulating layer 2 has excellent thermal conductivity and insulating properties, that is, ensures the normal use of PCB plates, and can guarantee heat Transmission.

Wherein, adhesive layer 8 is FCT-730 type heat transfer double faced adhesive tapes, this kind of double faced adhesive tape has good viscosity, while heat conduction Function admirable, the transmission for not influencing heat, ensure the heat dissipation performance of pcb board.

It should be noted that the utility model is a kind of pcb board that insulating layer is not easily to fall off, when specific works, by setting Some identification labels 10 facilitate processing unit (plant) that the edge of a knife 4 is identified and be aligned to pcb board, and the edge of a knife 4 is provided at both ends with copper billet 5, Copper billet 5 has certain flexibility, can reduce the probability that substrate bursts apart, adhesive layer is provided between insulating layer 2 and aluminum base layer 1 8, fastness between the two is improved, while roughening treatment is all made of in the bottom end on the top of aluminum base layer 1 and insulating layer 2, surface is thick The surface bigger of rugosity relative smooth, contact area between adhesive layer 8 also bigger, is more not likely to produce and falls off, adhesive layer 8 use FCT-730 type heat transfer double faced adhesive tapes, while ensureing viscosity, do not influence the transmission of heat, while the top of aluminum base layer 1 Portion is additionally provided with convex block 9, and convex block 9 is isolation material, and convex block 9 passes through insulating layer 2 to be placed in the inside of line layer 3, further adds Bonding strength between aluminum base layer 1, insulating layer 2 and line layer 3 by force, heat in transmittance process, colloid in adhesive layer 8 by Heat becomes fluid from solid, it is overflowed between insulating layer 2 and aluminum base layer 1 in order to prevent, and the outside of the edge of a knife 4 is provided with guarantor The surrounding of sheath 6, pcb board is provided with bound edge 7, forms an enclosure space between bound edge 7 and protective layer 6, can effectively prevent The outflow of colloid.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims

1. a kind of pcb board that insulating layer is not easily to fall off, including aluminum base layer (1), the insulating layer (2) that is placed at the top of aluminum base layer (1) and The line layer (3) being placed at the top of insulating layer (2), which is characterized in that further include：

For the edge of a knife (4) of cutting, the edge of a knife (4) runs through line layer (3) and insulating layer (2), and the edge of a knife (4) is in strip Shape, and the cell wall of the edge of a knife (4) is obliquely installed, and has copper billet (5) in the both ends soldering of the edge of a knife (4)；

It is placed in the external protective layer (6) of the edge of a knife (4), the setting of the protective layer (6) is between aluminum base layer (1) and insulating layer (2)；

Be coated on aluminum base layer (1), insulating layer (2) and line layer (3) surrounding bound edge (7), the inside of the bound edge (7) and protection The outside of layer (6) forms enclosure space；

It is equipped with adhesive layer (8) in the enclosure space that the bound edge (7) and the protective layer (6) are formed, the adhesive layer (8) Top is in contact with insulating layer (2), and the bottom of the adhesive layer (8) is in contact with aluminum base layer (1).

2. a kind of insulating layer according to claim 1 pcb board not easily to fall off, which is characterized in that on the aluminum base layer (1) Several convex blocks (9) are provided with, the top of the convex block (9) runs through insulating layer (2) and is embedded into the inside of line layer (3).

3. a kind of insulating layer according to claim 1 pcb board not easily to fall off, which is characterized in that the aluminum base layer (1) The equal roughening treatment in bottom end on top and insulating layer (2).

4. a kind of insulating layer according to claim 1 pcb board not easily to fall off, which is characterized in that the line layer (3) Surface is provided with identification label (10), and the identification marks the inner recess of (10) to line layer (3), and is marked in identification (10) surface is coated with the coat of metal.

5. a kind of insulating layer according to claim 1 pcb board not easily to fall off, which is characterized in that the aluminum base layer (1) is Aluminium sheet, and the thickness of the aluminum base layer (1) is 200 μM, the insulating layer (2) for SH2000S types thermal resistance heat conductive insulating base material, And the thickness of insulating layer (2) is 50 μM.

6. a kind of insulating layer according to claim 1 pcb board not easily to fall off, which is characterized in that the adhesive layer (8) is FCT-730 type heat transfer double faced adhesive tapes.