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CN-224233893-U - Printed circuit board and electronic device

CN224233893UCN 224233893 UCN224233893 UCN 224233893UCN-224233893-U

Abstract

The utility model relates to the technical field of printed circuit boards, in particular to a printed circuit board and an electronic device, which comprise a mounting base and a circuit board substrate, wherein a circuit board printing layer is adhered to the top surface of the circuit board substrate, and a plurality of symmetrically arranged threaded sleeves are fixedly connected to the top surface of the mounting base. The utility model has the advantages that the threaded sleeve is inserted into the backing ring until the top surface of the limiting ring is attached to the bottom surface of the backing ring, at the moment, the bolt penetrates through the circuit board substrate to be inserted into the clamping hole, the screw rod part of the locking bolt is inserted into the inner pipe and the nut is rotated, the locking bolt can be screwed into the threaded sleeve through the threaded transmission until the nut part of the locking bolt is attached to the top surface of the assembly ring, at the moment, the bottom surface of the nut part can rotate relative to the top surface of the assembly ring, the situation that the top surface of the circuit board is worn is prevented, and the assembly ring and the circuit board are split, so that the assembly ring is convenient to replace.

Inventors

  • CHEN YINGLIAN
  • ZHANG YING
  • ZHANG SHUANGFEI
  • ZHANG GUOHUA
  • LIU YINGFANG

Assignees

  • 深圳市华富快捷电路有限公司

Dates

Publication Date
20260512
Application Date
20250417

Claims (7)

  1. 1. A printed circuit board is characterized by comprising a mounting base (1) and a circuit board substrate (2), wherein a circuit board printing layer (3) is adhered to the top surface of the circuit board substrate (2), a plurality of symmetrically arranged threaded sleeves (4) are fixedly connected to the top surface of the mounting base (1), a plurality of symmetrically arranged backing rings (5) are embedded into the bottom surface of the circuit board substrate (2), the tops of the threaded sleeves (4) are inserted into the backing rings (5), a plurality of symmetrically arranged through holes (6) are formed in the top surface of the circuit board substrate (2) in a penetrating manner, the axes of the through holes (6) and the backing rings (5) are overlapped, an inner pipe (7) is connected to the inner wall of each through hole (6) in a sliding manner, an assembly ring (8) is fixedly connected to the top end of each inner pipe (7), two symmetrically arranged inner pipes (9) are fixedly connected to the bottom surface of each assembly ring (8) in a sliding manner, two locking bolts (10) are connected to the inner walls of the threaded sleeves (10) of the threaded sleeves (4) in a penetrating manner, the nut part of the locking bolt (10) is attached to the top surface of the assembly ring (8).
  2. 2. The printed circuit board according to claim 1, wherein the outer surface of the threaded sleeve (4) is fixedly connected with a limiting ring (11), and the top surface of the limiting ring (11) is attached to the bottom surface of the backing ring (5).
  3. 3. The printed circuit board according to claim 2, wherein the inner wall of the backing ring (5) is fixedly connected with a blocking ring (12), the screw portion of the locking bolt (10) is rotatably connected with the blocking ring (12), and the top surface of the threaded sleeve (4) is attached to the bottom surface of the blocking ring (12).
  4. 4. A printed circuit board according to claim 3, wherein a plurality of symmetrically arranged assembly grooves (13) are formed in one side of the printed circuit board layer (3) in a penetrating manner, a plurality of assembly rings (8) are slidably connected with the printed circuit board layer (3) through the assembly grooves (13), and the thicknesses of the printed circuit board layer (3) and the assembly rings (8) are equal.
  5. 5. The printed circuit board of claim 4, wherein the top surface of the backing ring (5) is provided with two symmetrically arranged clamping holes (14), and the two pins (9) penetrate through the circuit board substrate (2) and are clamped with the backing ring (5) through the clamping holes (14).
  6. 6. The printed circuit board of claim 5, wherein the top surface of the assembly ring (8) is fixedly connected with a sealing ring (15), the inner wall of the sealing ring (15) is slidably connected with a plug (16), the plug (16) is rotationally connected with the assembly ring (8) through a rubber connecting belt, and the bottom surface of the plug (16) is attached to the top end of the locking bolt (10).
  7. 7. An electronic device characterized by comprising an electronic device (17) for a printed wiring board according to any one of claims 1-6, the lead parts of the electronic device (17) being soldered to the printed wiring board layer (3) by means of solder.

Description

Printed circuit board and electronic device Technical Field The utility model relates to the technical field of printed circuit boards, in particular to a printed circuit board and an electronic device. Background Printed wiring boards, also known as printed wiring boards or printed wiring boards, are the core base components of modern electronic devices. The insulating substrate is covered with a layer of conductive material (such as copper) and is routed according to a predetermined circuit design, so that the electrical connection and functional integration between electronic components are realized. The PCB is composed of a conductive material layer and an insulating layer (such as epoxy or fiberglass) and a complex circuit layout is precisely transferred to the board through a precise manufacturing process. In the design process of a printed circuit board, through holes are usually formed in four corners of the circuit board for convenience in installation and fixation. These through holes allow the circuit board to be locked in the use position using fasteners such as bolts, thereby ensuring stability and reliability of the apparatus, and in practical use, the bottom surface of the nut portion thereof may rub against the top surface of the circuit board when the bolts are turned. Such friction is extremely likely to cause abrasion of the top surface of the wiring board. Over time, wear may become more severe and may even affect the electrical performance and mechanical strength of the circuit board. In addition, wear can also reduce the aesthetics and life of the circuit board, causing unnecessary loss to the user. Disclosure of utility model The object of the present utility model is to solve at least one of the technical drawbacks. It is therefore an object of the present utility model to provide a printed wiring board and an electronic device, which solve the problems mentioned in the background art and overcome the disadvantages of the prior art. In order to achieve the above object, an embodiment of an aspect of the present utility model provides a printed circuit board and an electronic device, including a mounting base and a circuit board substrate, wherein a circuit board printed layer is adhered to a top surface of the circuit board substrate, a plurality of symmetrically arranged threaded sleeves are fixedly connected to a bottom surface of the mounting base, a plurality of symmetrically arranged backing rings are embedded in a bottom surface of the circuit board substrate, a plurality of symmetrically arranged through holes are formed in the top surface of the circuit board substrate in a penetrating manner, the through holes coincide with an axis of the backing rings, an inner tube is slidably connected to an inner wall of each through hole, an assembly ring is fixedly connected to a top end of each inner tube, the assembly ring is slidably connected to the circuit board substrate, two symmetrically arranged bolts are fixedly connected to a bottom surface of each assembly ring, and are clamped with the backing rings through the circuit board substrate, locking bolts are rotatably connected to an inner wall of the inner tube, screw portions of the locking bolts are in threaded connection with the threaded sleeves, and nut portions of the locking bolts are attached to a top surface of the assembly ring. By any of the above schemes, preferably, the outer surface of the threaded sleeve is fixedly connected with a limiting ring, and the top surface of the limiting ring is attached to the bottom surface of the backing ring. By any of the above schemes, preferably, the inner wall of the backing ring is fixedly connected with a blocking ring, the screw portion of the locking bolt is rotationally connected with the blocking ring, and the top surface of the threaded sleeve is attached to the bottom surface of the blocking ring. By the above-mentioned scheme preferred, the one side of circuit board printing layer runs through and has offered a plurality of symmetrically set up the equipment groove, and a plurality of the equipment ring is all through equipment groove and circuit board printing layer sliding connection, circuit board printing layer equals with the thickness of equipment ring. By any of the above schemes, preferably, two symmetrically arranged clamping holes are formed in the top surface of the backing ring, and the two pins penetrate through the circuit board substrate and are clamped with the backing ring through the clamping holes. By the above-mentioned scheme preferred, the top surface fixedly connected with sealing ring of equipment ring, the inner wall sliding connection of sealing ring has the end cap, the end cap passes through the rubber connecting band and rotates with the equipment ring to be connected, the bottom surface of end cap is laminated with locking bolt's top mutually. It is preferable to include an electronic device for a printed wiring board, the lead portion of