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CN-122018645-A - Support, manufacturing method of support and electronic equipment

CN122018645ACN 122018645 ACN122018645 ACN 122018645ACN-122018645-A

Abstract

The application provides a support piece, a preparation method thereof and electronic equipment, and relates to the technical field of electronic equipment, wherein the electronic equipment comprises a support piece and a display screen, a main support structure in the support piece comprises a main insulation medium and long-chain carbon fibers, and the long-chain carbon fibers are overlapped and arranged in the main insulation medium along a plurality of directions; the first structure in the support piece is located one side of the main support structure far away from the display screen, the first structure comprises a first insulating medium and a first current extraction layer, the first insulating medium is in contact with the main support structure, the first insulating medium comprises a first resin matrix and first reinforcing fibers, the first reinforcing fibers are distributed in the first resin matrix, the first current extraction layer and the long-chain carbon fibers are separated and arranged at intervals, the first current extraction layer is partially embedded into the first insulating medium along a first direction, and the first current extraction layer is grounded. Therefore, the whole thickness of the support piece is thinner, and the conduction current can be led to the outer surface of the first current leading-out layer, so that the electromagnetic wave performance degradation is reduced.

Inventors

  • MENG YIN
  • SUN YANLING
  • LIU HUIYING
  • GUO XUEPING
  • CONG RONG

Assignees

  • 北京荣耀终端有限公司

Dates

Publication Date
20260512
Application Date
20260415

Claims (20)

  1. 1. A support for an electronic device, the electronic device further comprising a display screen, the support attached to a backlight side of the display screen, the support comprising: the main support structure comprises a main insulation medium and long-chain carbon fibers, wherein the long-chain carbon fibers are overlapped and arranged in the main insulation medium along a plurality of directions; the first structure is positioned on one side of the main support structure far away from the display screen, the first structure comprises a first insulating medium and a first current extraction layer, the first insulating medium is in contact with the main support structure, the first insulating medium comprises a first resin matrix and first reinforcing fibers, the first reinforcing fibers are distributed in the first resin matrix, the first current extraction layer and the long-chain carbon fibers are separated and arranged at intervals, the first current extraction layer is partially embedded into the first insulating medium along a first direction, and the first current extraction layer is grounded; Wherein the first direction is a direction parallel to a thickness direction of the support.
  2. 2. The support of claim 1, wherein the first structure further comprises a second current extraction layer located on at least a portion of an outer surface of the perimeter side of the first insulating medium.
  3. 3. The support of claim 1, further comprising a second structure between the main support structure and the display screen, the second structure comprising a second insulating medium and a third current extraction layer, the second insulating medium comprising a second resin matrix and second reinforcing fibers, the second reinforcing fibers being distributed in the second resin matrix; the second insulating medium is in contact with the main supporting structure, the third current extraction layer is separated from the long-chain carbon fiber and arranged at intervals, the third current extraction layer is partially embedded into the second insulating medium along the first direction, the third current extraction layer covers the whole second insulating medium, And/or the number of the groups of groups, The third current extraction layer is in contact with the main support structure, is embedded into the second insulating medium along the first direction, and covers the whole main support structure.
  4. 4. A support according to claim 3, wherein the second structure further comprises a fourth current extraction layer located on at least part of the outer surface of the second insulating medium peripheral side.
  5. 5. The support of claim 1, wherein the first structure further comprises a fifth current extraction layer embedded in the first insulating medium in the first direction, the fifth current extraction layer in contact with the primary support structure, the fifth current extraction layer being separate and spaced apart from the first current extraction layer.
  6. 6. The support of claim 1, wherein the number of primary support structures is a plurality; The support further comprises a third structure comprising a third insulating medium and a sixth current extraction layer, the third insulating medium being located between any adjacent main support structures, the third insulating medium being in contact with the main support structures, the third insulating medium comprising a third resin matrix and third reinforcing fibers, the third reinforcing fibers being distributed in the third resin matrix; The sixth current extraction layer is fully embedded into the third insulating medium along the first direction, and the sixth current extraction layer is separated from the main supporting structure and is arranged at intervals.
  7. 7. The support of claim 6, wherein the third structure further comprises a seventh current extraction layer embedded in the third insulating medium in the first direction, the seventh current extraction layer being in contact with the primary support structure, the seventh current extraction layer being separate and spaced apart from the sixth current extraction layer.
  8. 8. The support of claim 6, wherein the third structure further comprises an eighth current extraction layer located on at least a portion of an outer surface of the third insulating medium on a peripheral side thereof.
  9. 9. The support of claim 6 wherein the number of primary support structures is even.
  10. 10. The support of any one of claims 1 to 9, further comprising a connection layer located on at least part of the outer surface of the peripheral side of the main support structure, the material of the connection layer comprising an electrically conductive material.
  11. 11. The support of any one of claims 1 to 9, further comprising a protective layer on a side of the first structure remote from the main support structure, the protective layer having a recess formed therein, the recess exposing a portion of the first current extraction layer, the exposed first current extraction layer being grounded.
  12. 12. The support according to any one of claims 1 to 9, further comprising a fourth insulating medium between the main support structure or third current extraction layer and the display screen, the fourth insulating medium comprising a fourth resin matrix and fourth reinforcing fibers distributed in the fourth resin matrix.
  13. 13. The support according to any one of claims 1 to 9, wherein the resistivity of the first current extraction layer, the resistivity of the second current extraction layer, the resistivity of the third current extraction layer, the resistivity of the fourth current extraction layer, the resistivity of the fifth current extraction layer, the resistivity of the sixth current extraction layer, the resistivity of the seventh current extraction layer, and the resistivity of the eighth current extraction layer are each less than or equal to 10 -3 Ω.m.
  14. 14. The support according to any one of claims 1 to 9, wherein the material of the first current extraction layer, the material of the second current extraction layer, the material of the third current extraction layer, the material of the fourth current extraction layer, the material of the fifth current extraction layer, the material of the sixth current extraction layer, the material of the seventh current extraction layer, and the material of the eighth current extraction layer include any one of a metal, a conductive paste.
  15. 15. The support according to any one of claims 1 to 9, wherein the electronic device further comprises a middle frame surrounding the support and the display screen, and the first current extraction layer is connected to the middle frame.
  16. 16. The support according to any one of claims 1 to 9, wherein the electronic device further comprises a radiation member disposed around the support and the display screen with a gap therebetween.
  17. 17. The support according to any one of claims 1 to 9, wherein the first, second, third and fourth resin matrices each comprise at least one of an epoxy system resin, a styrene-acrylic system resin, a bismaleic system resin.
  18. 18. The support according to any one of claims 1 to 9, wherein the first, second, third and fourth insulating mediums are all the same.
  19. 19. A method for manufacturing a support member, the support member being applied to an electronic device, the electronic device further comprising a display screen, the support member being attached to a backlight side of the display screen, the method comprising: acquiring a semi-cured first structure and a semi-cured main support structure, and then stacking the semi-cured first structure and the semi-cured main support structure along a first direction; The method comprises the steps of carrying out hot pressing and solidification on a semi-solidified first structure and a semi-solidified main supporting structure to form a supporting piece, wherein the supporting piece comprises a main supporting structure and a first structure, the main supporting structure comprises a main insulating medium and long-chain carbon fibers, the long-chain carbon fibers are overlapped and arranged in the main insulating medium along a plurality of directions, the first structure is located at one side, far away from a display screen, of the main supporting structure, the first structure comprises a first insulating medium and a first current extraction layer, the first insulating medium is in contact with the main supporting structure, the first insulating medium comprises a first resin matrix and first reinforcing fibers, the first reinforcing fibers are distributed in the first resin matrix, the first current extraction layer and the long-chain carbon fibers are separated and arranged at intervals, the first current extraction layer is partially embedded in the first insulating medium along a first direction, the first current extraction layer is grounded, and the first direction is parallel to the thickness direction of the supporting piece.
  20. 20. The method of claim 19, wherein the semi-cured first structure comprises a semi-cured first insulating medium, the first current extraction layer, and a second current extraction layer, and wherein the obtaining the semi-cured first structure comprises: obtaining a pre-cured first insulating medium, wherein the size of the pre-cured first insulating medium is larger than that of the semi-cured first insulating medium; Embedding the first current extraction layer into the pre-cured first insulating medium along the first direction, forming a first via hole in a part of the pre-cured first insulating medium larger than the semi-cured first insulating medium along the first direction, arranging the second current extraction layer in the first via hole, and removing the part of the pre-cured first insulating medium larger than the semi-cured first insulating medium except the second current extraction layer to form the semi-cured first structure.

Description

Support, manufacturing method of support and electronic equipment Technical Field The application relates to the technical field of electronic equipment, in particular to a support piece, a manufacturing method thereof and electronic equipment. Background With the development of technology, electronic devices are being researched and applied more and more widely in the work and life of people, wherein the electronic devices equipped with display screens can perform functions of display, touch control and the like. At present, the display screen is increasingly larger in size, and therefore, a supporting piece, such as a back plate, is needed to support the display screen, so that risks of deformation, bending, warping, fracture, abnormal display, touch failure and the like of the display screen are reduced. In recent years, electronic devices have been increasingly thinned and miniaturized, and in order to make the support member compatible with both the support strength and the thinness, a lightweight and high-strength carbon fiber back plate is often used as the support member. Moreover, electronic devices are provided with a wide variety of antennas to meet communication needs. When the antenna works, electromagnetic waves are radiated to the space, and the carbon fiber backboard is easy to disturb the electromagnetic environment around the antenna due to discontinuous conduction, dielectric loss and the like, so that the radiation efficiency of the antenna is deteriorated, and the performance of the electronic equipment is further deteriorated. Disclosure of Invention The application provides a support member, a preparation method thereof and electronic equipment, wherein the support member is partially embedded into a first insulating medium at one side far away from a display screen along a first direction by arranging a first current extraction layer, on the basis of ensuring good supporting performance of the supporting piece, the whole thickness of the supporting piece can be thinner, meanwhile, conduction current generated by electromagnetic waves in the supporting piece can be led to the outer surface of the first current leading-out layer, and the degradation of the electromagnetic wave performance can be reduced. In order to achieve the above purpose, the application adopts the following technical scheme: the first aspect provides a support piece applied to electronic equipment, the electronic equipment further comprises a display screen, the support piece is attached to the backlight side of the display screen, the support piece comprises a main support structure and a first structure, the main support structure comprises a main insulation medium and long-chain carbon fibers, the long-chain carbon fibers are arranged in the main insulation medium in a lap joint mode along multiple directions, the first structure is located on one side, far away from the display screen, of the main support structure and comprises a first insulation medium and a first current extraction layer, the first insulation medium is in contact with the main support structure, the first insulation medium comprises a first resin matrix and first reinforcing fibers, the first reinforcing fibers are distributed in the first resin matrix, the first current extraction layer is separated from the long-chain carbon fibers and arranged at intervals, the first current extraction layer is partially embedded into the first insulation medium along the first direction, the first current extraction layer is grounded, and the first direction is parallel to the thickness direction of the support piece. The embodiment of the application provides a support, which is characterized in that a first current extraction layer is partially embedded into a first insulating medium along a first direction, so that the thickness of the whole support is reduced in the first direction compared with that of a carbon fiber backboard formed by existing all-carbon fibers, meanwhile, the first current extraction layer can lead the conduction current induced by electromagnetic waves in the support to be away from the surface of the support, so that the conduction current can hardly enter the support, especially cannot go deep into the carbon fibers, thereby reducing the electromagnetic wave performance deterioration, shortening the conduction path, optimizing the static discharge and ground return performance, and the long-chain carbon fibers in a main support structure are combined with first reinforcing fibers and a resin matrix in the first structure to ensure that the support has enough elastic modulus and rigidity. In a possible implementation manner of the first aspect, the first structure further includes a second current extraction layer, and the second current extraction layer is located on at least part of an outer surface of the first insulating medium on a peripheral side. In this implementation, the second current extraction layer is also able t