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CN-224234000-U - Middle frame assembly and electronic equipment

CN224234000UCN 224234000 UCN224234000 UCN 224234000UCN-224234000-U

Abstract

The disclosure relates to a middle frame assembly and electronic equipment, wherein the middle frame assembly comprises a middle frame, a first circuit board, a functional module and a tuning device, the first circuit board is arranged on the middle frame, the tuning device is arranged on the first circuit board, the functional module is arranged on the middle frame and comprises a body and a second circuit board connected with the body, the second circuit board is electrically connected with the first circuit board through a first electrical connection part, and the tuning device is arranged on the first circuit board and is electrically connected with the second circuit board through the first circuit board. In the middle frame assembly of this disclosure, the second circuit board of function module is connected through first electric connection portion and tuning device and the first circuit board electricity of setting at the middle frame to increased function module's area of earthing, promoted function module's earthing effect, in order to avoid function module to influence antenna efficiency, promoted user's communication experience, need not to occupy too much space simultaneously, be favorable to realizing the compactification of middle frame assembly and the miniaturized design of complete machine.

Inventors

  • YAN JING

Assignees

  • 北京小米移动软件有限公司

Dates

Publication Date
20260512
Application Date
20250421

Claims (15)

  1. 1. A center assembly, comprising: a middle frame; the first circuit board is arranged on the middle frame and is provided with a tuning device; The functional module is arranged in the middle frame and comprises a body and a second circuit board connected with the body, and the second circuit board is electrically connected with the first circuit board through a first electrical connection part; And the tuning device is arranged on the first circuit board and is electrically connected with the second circuit board through the first circuit board.
  2. 2. The mullion assembly of claim 1, wherein the first circuit board includes a connection layer including first and second electrical connection pads disposed adjacent to each other, the first electrical connection portion being connected to the first electrical connection pad, the tuning device being connected to the second electrical connection pad.
  3. 3. The mullion assembly of claim 2, wherein the first electrical connection portion includes a spring that abuts the first electrical connection pad.
  4. 4. The mullion assembly of claim 2, wherein the first circuit board further comprises a routing layer on a side of the connection layer facing away from the first electrical connection portion, the routing layer comprising a routing electrically connected to the first electrical connection pad and the second electrical connection pad.
  5. 5. The center assembly of claim 4, wherein a projection range of the trace on the surface of the first circuit board is a first area, a projection range of the first electrical connection pad on the surface of the first circuit board is a second area, and the first area at least partially avoids the second area.
  6. 6. The mullion assembly of claim 4, wherein the first circuit board further comprises a ground layer on a side of the connection layer facing away from the first electrical connection portion, the ground layer being provided with a hollowed out area surrounding the first electrical connection pad, the second electrical connection pad, and the trace in projection on a surface of the first circuit board.
  7. 7. The center assembly of any of claims 1-6, wherein a portion of the structure of the second circuit board is located between the first circuit board and the center, and an insulating layer is disposed between a surface of the second circuit board facing away from the first circuit board and the center.
  8. 8. The mullion assembly of any one of claims 1 to 6, wherein the body comprises a conductive enclosure and a functional device disposed within the conductive enclosure, the second circuit board is electrically connected to the functional device, the second circuit board protrudes from the conductive enclosure through an opening in the conductive enclosure; The middle frame assembly further comprises a second electric connection part, wherein the first end of the second electric connection part is connected with the conductive shell, and the second end of the second electric connection part is grounded.
  9. 9. The mullion assembly of claim 8, wherein the second electrical connection portion comprises a metal sheet, a portion of the metal sheet being in contact with a top surface of the electrically conductive enclosure.
  10. 10. The mullion assembly of claim 8, wherein the second end of the second electrical connection is connected to the mullion.
  11. 11. The mullion assembly of claim 8, wherein the first circuit board is provided with a shielding cage, and the second end of the second electrical connection is connected to the shielding cage.
  12. 12. The center frame assembly of any one of claims 1 to 6, wherein the center frame assembly includes a third electrical connection portion through which the body is fixedly connected to the center frame; In the projection on the surface of the first circuit board, the overlapping area of the body and the middle frame is smaller than the overlapping area of the third electric connection part and the middle frame.
  13. 13. The mullion assembly of claim 12, wherein the third electrical connection portion includes a frame structure and a securing portion connected to the frame structure, the securing portion being fixedly connected to the mullion by a fastener.
  14. 14. The mullion assembly of any one of claims 1 to 6, wherein the tuning device comprises a choke inductance.
  15. 15. An electronic device comprising a center assembly according to any one of claims 1 to 14.

Description

Middle frame assembly and electronic equipment Technical Field The disclosure relates to the technical field of electronic equipment, in particular to a middle frame assembly and electronic equipment. Background With the continuous development of electronic device technology, electronic devices also tend to be thin and compact. Therefore, the arrangement of devices inside the electronic equipment can be more compact by arranging the functional module in the electronic equipment, and the assembly efficiency of the electronic equipment can be improved more favorably. Disclosure of Invention In order to overcome the problems in the related art, the present disclosure provides a middle frame assembly and an electronic device. According to a first aspect of embodiments of the present disclosure, there is provided a middle frame assembly comprising: a middle frame; the first circuit board is arranged on the middle frame and is provided with a tuning device; The functional module is arranged in the middle frame and comprises a body and a second circuit board connected with the body, and the second circuit board is electrically connected with the first circuit board through a first electrical connection part; And the tuning device is arranged on the first circuit board and is electrically connected with the second circuit board through the first circuit board. In this disclosed embodiment, the second circuit board of function module is connected through first electric connection portion and tuning device and the first circuit board electricity of setting at the center, can change the tuning position of second circuit board through the tuning device, avoids the setting up of second circuit board to influence the antenna signal of center subassembly place electronic equipment, promotes user's communication experience, in addition, because the tuning device sets up on the first circuit board on the center, the arrangement of tuning device of being convenient for more, consequently can select the tuning device that the size is great in order to avoid function module to influence electronic equipment's antenna efficiency. In one possible embodiment, the first circuit board includes a connection layer including a first electrical connection pad and a second electrical connection pad disposed adjacently, the first electrical connection portion being connected to the first electrical connection pad, the tuning device being connected to the second electrical connection pad. In the embodiment of the disclosure, the first electric connection portion and the tuning device are respectively connected with different positions of the connection layer, so that mutual interference between the first electric connection portion and the tuning device can be avoided, the effect of grounding connection is ensured, and meanwhile, because the first electric connection pad and the second electric connection pad are adjacently arranged, the tuning device is arranged near the first electric connection portion and is close to the grounding position for tuning, and the influence of the second circuit board on the antenna performance can be obviously reduced. In one possible embodiment, the first electrical connection portion includes a spring plate, and the spring plate abuts against the first electrical connection pad. In the embodiment of the disclosure, the elastic sheet has a certain damping effect when playing an electric connection role, so that the connection stability and the structural stability of the functional module are improved. In one possible implementation manner, the first circuit board further includes a routing layer located on a side of the connection layer facing away from the first electrical connection portion, and the routing layer includes a routing electrically connected to the first electrical connection pad and the second electrical connection pad. In the embodiment of the disclosure, the wiring layer and the connecting layer are relatively independent, so that the wiring can not interfere the first electric connection part and the tuning device, and the stability and the reliability of electric connection are improved. In one possible implementation manner, a projection range of the trace on the surface of the first circuit board is a first area, a projection range of the first electric connection pad on the surface of the first circuit board is a second area, and the first area at least partially avoids the second area. In the embodiment of the disclosure, the first area and the second area can be completely staggered and partially overlapped, so that mutual interference between the wiring, the first electric connection part and the tuning device is avoided. In one possible implementation manner, the first circuit board further includes a ground layer located on a side of the connection layer facing away from the first electrical connection portion, and a hollowed-out area is provided on the ground layer, and in a