CN212312952U

CN212312952U - Flame-retardant heat-resistant copper-clad plate

Info

Publication number: CN212312952U
Application number: CN202020324262.4U
Authority: CN
Inventors: 赵国栋; 郭乔; 潘治梁
Original assignee: Guangzhou Yinyuan New Material Co ltd
Current assignee: Guangzhou Yinyuan New Material Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2021-01-08
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a flame-retardant heat-resistant copper-clad plate, which comprises an inner layer, wherein an insulating layer is fixedly bonded on the top surface and the bottom surface of the inner layer, an outer layer is fixedly bonded on the outer layer of the insulating layer, the inner layer comprises a base material, the top surface and the bottom surface of the base material are both covered with a heat-insulating layer, the middle part of the heat-insulating layer is provided with a plurality of hollow cavities which are distributed along the front and back directions of the heat-insulating layer, the insulating layer comprises a plurality of unit cells, the unit cells are arranged into a regular hexagon structure, the unit cells are mutually spliced by a honeycomb structure, the middle part of the unit cell is provided with a unit cavity, the unit cavity is arranged into a regular hexagon structure, the flame-retardant heat-resistant copper-clad plate relates to the technical field of the copper-clad plate, the heat-insulating layer and the insulating layer are arranged, the whole, the overall flame retardant property of the copper-clad plate is improved.

Description

Flame-retardant heat-resistant copper-clad plate

Technical Field

The utility model relates to a copper-clad plate specifically is a fire-retardant heat-resistant copper-clad plate.

Background

The copper clad laminate is a plate material prepared by soaking electronic glass fiber cloth or other reinforcing materials with resin, covering one side or two sides with copper foil and hot pressing, which is called copper clad laminate for short, and various printed circuit boards with different forms and different functions are all prepared by selectively processing, etching, drilling, copper plating and other procedures on the copper clad laminate to prepare different printed circuits, mainly play the roles of interconnection, insulation and support for the printed circuit boards, and have great influence on the transmission speed, energy loss, characteristic impedance and the like of signals in the circuits, therefore, the performance, quality, processability, manufacturing level, manufacturing cost, long-term reliability and stability of the printed circuit boards are greatly dependent on the copper clad laminate.

The copper-clad plate uses an insulating laminated plate composed of high molecular synthetic resin and a reinforcing material as a substrate, the variety of the synthetic resin is various, and the performance of the copper-clad plate is determined.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant heat-resistant copper-clad plate to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a fire-retardant heat-resistant copper-clad plate, includes the inlayer, the top surface and the bottom surface of inlayer are all fixed to bond has the insulating layer, the outer fixed bonding of insulating layer has the skin, the inlayer includes the substrate, the top surface and the bottom surface of substrate have all covered the insulating layer, and the middle part of insulating layer sets up a plurality of well cavitys of following its preceding, rear upwards distribution, the insulating layer includes a plurality of cell, the cell sets up to regular hexagon structure, and a plurality of cell splice each other with honeycomb structure, the cell chamber has been seted up at the middle part of cell, the cell chamber sets up to regular hexagon structure.

As a further aspect of the present invention: through being provided with insulating layer and insulating layer, a plurality of well cavitys have been seted up to insulating layer inside, can effectively the thermal transmission of separation, not only reach the thermal purpose of separation through the material characteristic, simultaneously through structural improvement copper-clad plate holistic heat-proof quality, the insulating layer adopts honeycomb cell structure, the inside hollow structure that adopts of cell, fire behaviour improves greatly, the while has improved the fire behaviour of insulating layer at material and structural improvement, the holistic fire behaviour of copper-clad plate has been improved greatly.

Furthermore, the base material is made of glass fiber cloth.

Furthermore, the heat insulation layer is made of polytetrafluoroethylene materials, the cross section of each hollow cavity is of a rectangular structure, and the hollow cavities are evenly distributed at equal intervals.

Furthermore, the insulating layer is made of epoxy resin materials.

Furthermore, the outer layer is formed by hot pressing of a copper foil material.

Further, the base material is impregnated with mixed glue.

As a further aspect of the present invention: the base material is impregnated with the mixed glue, and the mixed glue mainly has the function of impregnating the glass fiber cloth reinforcing material, so that the copper foil is tightly combined with the glass fiber cloth, and the glass fiber cloth is tightly combined with the glass fiber cloth, and the product is endowed with the characteristics of flame retardance and heat resistance.

Further, the top and the bottom of the insulating layer are fixedly bonded with an outer layer and a heat insulating layer through semi-fixed layers respectively.

Furthermore, the top and the bottom of the base material are fixedly connected with the bottom of the heat insulation layer through the bonding layer.

Compared with the prior art, the utility model discloses a be provided with insulating layer and insulating layer, a plurality of well cavitys have been seted up inside the insulating layer, can effectively separate thermal transmission, not only reach the thermal purpose of separation through the material characteristic alone, simultaneously through structural improvement copper-clad plate holistic heat-proof quality, the insulating layer adopts honeycomb cell structure, the inside hollow structure that adopts of cell, flame retardant property improves greatly, simultaneously at the flame retardant property of material with the institutional advancement insulating layer, the holistic flame retardant property of copper-clad plate has been improved greatly.

Drawings

FIG. 1 is a schematic structural diagram of a flame-retardant heat-resistant copper-clad plate.

FIG. 2 is a schematic structural diagram of an inner layer in a flame-retardant heat-resistant copper-clad plate.

FIG. 3 is a schematic structural diagram of an insulating layer in a flame-retardant heat-resistant copper-clad plate.

In the figure: 1. an inner layer; 2. an insulating layer; 3. an outer layer; 4. a substrate; 5. a thermal insulation layer; 6. a hollow cavity; 7. a cell; 8. a unit chamber; 9. a semi-fixed layer; 10. and (7) bonding the layers.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, a flame-retardant and heat-resistant copper-clad plate comprises an inner layer 1, wherein an insulating layer 2 is fixedly bonded on the top surface and the bottom surface of the inner layer 1, the insulating layer 2 is made of epoxy resin materials, an outer layer 3 is fixedly bonded on the outer layer of the insulating layer 2, the outer layer 3 is formed by hot-pressing copper foil materials, the inner layer 1 comprises a substrate 4, the substrate 4 is made of glass fiber cloth materials, mixed glue is impregnated on the substrate 4 and comprises epoxy resin, a curing agent, an accelerant and a solvent, a heat-insulating layer 5 covers the top surface and the bottom surface of the substrate 4, a plurality of hollow cavities 6 are formed in the middle of the heat-insulating layer 5 and distributed along the front and rear directions of the heat-insulating layer 5, the heat-insulating layer 5 is made of polytetrafluoroethylene materials, the cross sections of the hollow cavities 6 are of rectangular structures, the hollow cavities, the cell 7 is set to be in a regular hexagon structure, the plurality of cells 7 are spliced with each other in a honeycomb structure, a cell cavity 8 is formed in the middle of each cell 7, the cell cavity 8 is set to be in a regular hexagon structure, the top and the bottom of the insulating layer 2 are fixedly bonded with the outer layer 3 and the insulating layer 5 through the semi-fixing layer 9 respectively, the top and the bottom of the substrate 4 are fixedly connected with the bottom of the insulating layer 5 through the bonding layer 10, the insulating layer 5 and the insulating layer 2 are arranged, the insulating layer 5 is internally provided with the plurality of hollow cavities 6, the heat transfer can be effectively blocked, the purpose of blocking heat can be achieved through material characteristics alone, the heat insulation performance of the whole copper-clad plate is improved through the structure, the insulating layer 2 adopts the honeycomb cell 7 structure, the hollow structure is adopted in the cell 7, the flame retardant performance is greatly improved, and the flame retardant performance of the, the flame retardant property of the whole copper-clad plate is greatly improved, the base material 4 is soaked with the mixed glue, and the mixed glue mainly has the function of soaking the glass fiber cloth reinforcing material, so that the copper foil and the glass fiber cloth are tightly combined, and the glass fiber cloth are endowed with flame retardant and heat resistant properties.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a fire-retardant heat-resistant copper-clad plate, includes inlayer (1), the top surface and the bottom surface of inlayer (1) are all fixed to bond and are had insulating layer (2), the outer fixed bonding of insulating layer (2) has outer (3), a serial communication port, inlayer (1) includes substrate (4), the top surface and the bottom surface of substrate (4) have all covered insulating layer (5), and the middle part of insulating layer (5) has seted up a plurality of well cavitys (6) of following its preceding, rear upwards distribution, insulating layer (2) include a plurality of cell (7), cell (7) set up to regular hexagon structure, and a plurality of cell (7) splice each other with honeycomb structure, cell (8) have been seted up at the middle part of cell (7), cell (8) set up to regular hexagon structure.

2. The flame-retardant heat-resistant copper-clad plate according to claim 1, wherein the base material (4) is made of a glass fiber cloth material.

3. The flame-retardant heat-resistant copper-clad plate according to claim 1, wherein the heat insulation layer (5) is made of polytetrafluoroethylene material, the cross section of the hollow cavities (6) is of a rectangular structure, and the hollow cavities (6) are uniformly distributed at equal intervals.

4. The flame-retardant heat-resistant copper-clad plate according to claim 1, wherein the insulating layer (2) is made of an epoxy resin material.

5. The flame-retardant heat-resistant copper-clad plate according to claim 1, wherein the outer layer (3) is formed by hot-pressing a copper foil material.

6. The flame-retardant heat-resistant copper-clad plate according to claim 1, wherein the base material (4) is impregnated with mixed glue.

7. The flame-retardant heat-resistant copper-clad plate according to claim 1, wherein the top and the bottom of the insulating layer (2) are fixedly bonded with the outer layer (3) and the heat insulating layer (5) through semi-fixed layers (9), respectively.

8. The flame-retardant heat-resistant copper-clad plate according to claim 1, wherein the top and the bottom of the base material (4) are fixedly connected with the bottom of the heat-insulating layer (5) through an adhesive layer (10).