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CN-121985501-A - Flexible circuit board assembly, electronic equipment and electronic equipment manufacturing method

CN121985501ACN 121985501 ACN121985501 ACN 121985501ACN-121985501-A

Abstract

The application provides a flexible circuit board assembly, electronic equipment and a manufacturing method of the electronic equipment, wherein the electronic equipment comprises the flexible circuit board assembly, the flexible circuit board assembly comprises a first device, a flexible circuit board, a first connecting layer, a first reinforcing plate, a second connecting layer and a second reinforcing plate, the first connecting layer is connected with the first reinforcing plate and the flexible circuit board, the second connecting layer is connected with the first reinforcing plate and the second reinforcing plate, the first device is fixedly connected to the surface of the flexible circuit board, which is opposite to the first reinforcing plate, the flexible circuit board assembly further comprises a positioning piece and a positioning groove, along the thickness direction of the flexible circuit board assembly, the positioning groove is recessed from the surface of the flexible circuit board, which is provided with the first device, to the surface of the second reinforcing plate, which is opposite to the flexible circuit board, and at least penetrates through the flexible circuit board, the first connecting layer, the first reinforcing plate and the second connecting layer, the positioning piece is at least partially formed in the positioning groove, and the positioning piece is at least connected with the groove peripheral wall of the positioning groove.

Inventors

  • SONG JIA

Assignees

  • 荣耀终端股份有限公司

Dates

Publication Date
20260505
Application Date
20241025

Claims (15)

  1. 1. An electronic device, comprising: the rear shell is arranged on one side of the thickness direction of the middle frame and comprises a light hole, and a bracket is arranged on the middle frame; The flexible circuit board assembly comprises a first device, a flexible circuit board, a first connecting layer, a first reinforcing plate, a second connecting layer and a second reinforcing plate, wherein the first connecting layer is connected with the first reinforcing plate and the flexible circuit board, the second connecting layer is connected with the first reinforcing plate and the second reinforcing plate, the first connecting layer, the first reinforcing plate, the second connecting layer and the second reinforcing plate are laminated with the flexible circuit board, the first device is fixedly connected with the surface of the flexible circuit board, which is opposite to the first reinforcing plate, The flexible circuit board assembly further comprises a positioning piece and a positioning groove, the positioning groove is recessed from the surface of the flexible circuit board, provided with the first device, to the surface direction of the second reinforcing plate, which is opposite to the surface direction of the flexible circuit board, the positioning groove at least penetrates through the flexible circuit board, the first connecting layer, the first reinforcing plate and the second connecting layer, the positioning piece is at least partially formed in the positioning groove, and the positioning piece is at least connected with the groove peripheral wall of the positioning groove; The second reinforcing plate of the flexible circuit board assembly is connected with the surface of the support, facing the rear shell, and the first device is abutted against the rear shell and opposite to the light hole.
  2. 2. The electronic device according to claim 1, wherein the positioning groove includes a groove bottom wall connecting the groove peripheral wall, the groove bottom wall being formed in the second reinforcing plate; the positioning piece comprises a first end face, the positioning piece is connected with the groove peripheral wall and the groove bottom wall, and the first end face faces and is connected with the groove bottom wall.
  3. 3. The electronic device of claim 1, wherein the locating slot further extends through a surface of the second stiffener facing away from the flexible circuit board; The positioning piece comprises a first end face, and the first end face is connected with the surface, back to the flexible circuit board, of the second reinforcing plate.
  4. 4. The electronic device according to claim 2, wherein the second reinforcing plate includes a first surface and a second surface, the first surface and the second surface being disposed opposite to each other in a plate thickness direction of the second reinforcing plate, the second surface facing away from the first reinforcing plate, the groove peripheral wall being connected to the first surface, the first surface constituting a surface of the groove bottom wall of the positioning groove; Or the second reinforcing plate further comprises an assembly groove, the assembly groove is a groove and is concavely arranged on the first surface, the bottom wall of the assembly groove is the groove bottom wall of the positioning groove, the groove peripheral wall of the assembly groove is part of the groove peripheral wall of the positioning groove, and the positioning piece is connected with the groove bottom wall and the groove peripheral wall of the assembly groove.
  5. 5. The electronic device of any one of claims 1-4, wherein a length of the positioning member is less than or equal to a depth of the positioning groove along a thickness direction of the flexible circuit board assembly.
  6. 6. The electronic device according to any one of claims 1 to 4, wherein the positioning member includes a positioning main body and a positioning convex portion, the positioning convex portion being connected to the positioning main body along a height direction of the positioning member; The positioning main body is formed in the positioning groove, the positioning convex part is located outside the positioning groove, and the positioning convex part protrudes and is connected to the surface, provided with the first device, of the flexible circuit board.
  7. 7. The electronic device of claim 6, wherein the flexible circuit board includes a first mounting surface and a second mounting surface disposed opposite the first mounting surface, The flexible circuit board is further provided with a through hole penetrating through the first mounting surface and the second mounting surface, the through hole forms part of the positioning groove, the through hole comprises a first sub through hole and a second sub through hole which are communicated, the first sub through hole penetrates through the first mounting surface, the diameter of the first sub through hole is larger than that of the second sub through hole, a step is formed between the first sub through hole and the second sub through hole, and the positioning convex part is positioned in the first sub through hole and connected with the step.
  8. 8. The electronic device of any one of claims 1-4, wherein the positioning member is made of solder paste, a metal layer is covered on a wall of the positioning groove, the metal layer is made of a tin-philic material, and the positioning member is formed in the positioning groove and connected with the metal layer.
  9. 9. The electronic device of claim 1, wherein the positioning member comprises a positioning boss and a positioning body, the positioning boss being connected to the positioning body; the positioning groove also penetrates through the surface of the second reinforcing plate, which is opposite to the flexible circuit board, and the positioning piece comprises a first end surface, The positioning main body is formed in the positioning groove, and the positioning convex part is positioned outside the positioning groove and connected to one side of the second reinforcing plate, which is opposite to the first reinforcing plate.
  10. 10. The electronic device according to claim 1, wherein the positioning member includes two positioning projections and a positioning body, the two positioning projections being respectively connected to opposite ends of the positioning body in a height direction; The positioning main body is formed on the positioning groove, two positioning convex parts are formed outside the positioning groove, and the two positioning convex parts are respectively connected with the flexible circuit board and the second reinforcing plate.
  11. 11. The electronic device of any one of claims 1-4, wherein the positioning member is made of resin or gel.
  12. 12. The electronic device of claim 11, wherein the first connection layer is made of a thermosetting adhesive and the second connection layer is made of a pressure sensitive adhesive.
  13. 13. The electronic device of claim 1, wherein the flexible circuit board comprises a first portion, a second portion, and a connection portion connected to the first portion and the second portion, the first portion extending in a direction opposite to the second portion, the first device being connected to one surface of the first portion; the electronic equipment further comprises a second device, the flexible circuit board assembly further comprises a third reinforcing plate and a third connecting layer, the third connecting layer is connected with the third reinforcing plate and the second part, the second device is connected to the surface, facing away from the third reinforcing plate, of the second part, and the first device and the second device are both communicated with the flexible circuit board.
  14. 14. The flexible circuit board assembly is applied to electronic equipment and is characterized by comprising a first device, a flexible circuit board, a first connecting layer, a first reinforcing plate, a second connecting layer and a second reinforcing plate, wherein the first connecting layer is connected with the first reinforcing plate and the flexible circuit board, the second connecting layer is connected with the first reinforcing plate and the second reinforcing plate, the first connecting layer, the first reinforcing plate, the second connecting layer and the second reinforcing plate are laminated with the flexible circuit board, The flexible circuit board further comprises a first part, a second part and a connecting part connected with the first part and the second part, wherein the extending direction of the first part is opposite to that of the second part, and the first device is connected with one surface of the first part; The electronic equipment further comprises a second device, the flexible circuit board assembly further comprises a third reinforcing plate and a third connecting layer, the third connecting layer is connected with the third reinforcing plate and the second part, the second device is connected to the surface of the second part, which is opposite to the third reinforcing plate, and the first device and the second device are both communicated with the flexible circuit board The flexible circuit board assembly further comprises a positioning piece and a positioning groove, the positioning groove is formed in the thickness direction of the flexible circuit board assembly, the surface of the first device is arranged on the flexible circuit board and is opposite to the surface direction of the second reinforcing plate, the positioning groove at least penetrates through the flexible circuit board, the first connecting layer, the first reinforcing plate and the second connecting layer, the positioning piece is at least partially formed in the positioning groove, and the positioning piece is at least connected with the groove peripheral wall of the positioning groove.
  15. 15. A method for manufacturing an electronic device as claimed in any one of claims 1 to 13, characterized in that the method comprises, Connecting the first reinforcing plate to one surface of the flexible circuit board, and connecting the third reinforcing plate to the other surface of the flexible circuit board, wherein the first reinforcing plate and the third reinforcing plate are positioned at two ends of the flexible circuit board; welding a second device on the surface of the flexible circuit board, wherein the second device and the third reinforcing plate are opposite to each other along the thickness direction of the flexible circuit board; welding the first device on the surface of the circuit board, and enabling the first device to be opposite to the first reinforcing plate, wherein the first device and the second device are positioned at two ends of the flexible circuit board and are positioned on two opposite surfaces; Connecting the second reinforcing plate to one side of the first reinforcing plate, which is opposite to the flexible circuit board; and filling the locating piece material in the molten state into locating grooves formed in the flexible circuit board, the first reinforcing plate and the second reinforcing plate, and solidifying to form the locating piece for connecting the flexible circuit board, the first reinforcing plate and the second reinforcing plate.

Description

Flexible circuit board assembly, electronic equipment and electronic equipment manufacturing method Technical Field The present application relates to the field of electronic devices, and in particular, to a flexible circuit board assembly, an electronic device, and a method for manufacturing the electronic device. Background In the terminal equipment such as a mobile phone in the prior art, optical devices such as a laser, a flash lamp and a color temperature lamp are needed to be close to a battery cover behind the terminal, the optical devices are needed to be closer to the battery cover in space implementation, the installation precision and stability are improved, the devices are usually borne on a flexible circuit board and are electrically connected with a main board, the flexible circuit board is supported to a rear shell position through the flexible circuit board, but the bearing strength of the supported flexible circuit board which is continuously stressed is not enough to generate deformation or displacement change, so that the installation precision and the use of the optical devices are directly influenced, and the problem of how to ensure the installation stability of the optical devices is solved in the industry. Disclosure of Invention The application provides a flexible circuit board assembly, electronic equipment and a manufacturing method of the electronic equipment, which can ensure the installation stability of an optical device and a flexible circuit board. An embodiment of the present application provides an electronic device including: the middle frame and the rear shell, the rear shell install in one side of middle frame thickness direction, the rear shell includes the light trap, be provided with the support on the middle frame. The flexible circuit board assembly comprises a first device, a flexible circuit board, a first connecting layer, a first reinforcing plate, a second connecting layer and a second reinforcing plate, wherein the first connecting layer is connected with the first reinforcing plate and the flexible circuit board, the second connecting layer is connected with the first reinforcing plate and the second reinforcing plate, the first connecting layer, the first reinforcing plate, the second connecting layer and the second reinforcing plate are laminated with the flexible circuit board, the first device is fixedly connected with the surface of the flexible circuit board, which is opposite to the first reinforcing plate, The flexible circuit board assembly further comprises a positioning piece and a positioning groove, the positioning groove is formed in the thickness direction of the flexible circuit board assembly, the surface of the first device is arranged on the flexible circuit board and is opposite to the surface direction of the second reinforcing plate, the positioning groove at least penetrates through the flexible circuit board, the first connecting layer, the first reinforcing plate and the second connecting layer, the positioning piece is at least partially formed in the positioning groove, and the positioning piece is at least connected with the groove peripheral wall of the positioning groove. The second reinforcing plate of the flexible circuit board assembly is connected with the surface of the support, facing the rear shell, and the first device is abutted against the rear shell and opposite to the light hole. In the related art, in terminal equipment such as a mobile phone and the like, optical devices such as a laser, a flash lamp, a color temperature lamp and the like are needed to be close to a battery cover behind the terminal, and the optical devices are needed to be closer to the battery cover in space implementation, so that the installation precision and stability are improved. In view of the prior art, the flexible circuit board is raised through the first reinforcing plate and the second reinforcing plate, so that when the first device is mounted on the first part, the first device is lifted, the flexible circuit board is supported by the first reinforcing plate and the second reinforcing plate, the structural strength of the flexible circuit board is improved, deformation or displacement change caused by continuous stress of the flexible circuit board due to the fact that the first device is mounted on the flexible circuit board is avoided, and the mounting precision and stability of the first device are guaranteed. According to the embodiment of the application, the first reinforcing plate, the second reinforcing plate and the flexible circuit board are fixedly connected through the positioning piece, so that the first reinforcing plate and the second reinforcing plate are fixed on the flexible circuit board, and the situation that the first reinforcing plate is shifted or the second reinforcing plate is unstable or even cannot be installed due to the second connecting layer is avoided. For example, the first reinforcing plate and the