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CN-224233905-U - Circuit board structure convenient to installation

CN224233905UCN 224233905 UCN224233905 UCN 224233905UCN-224233905-U

Abstract

The utility model discloses a circuit board structure convenient to install, which comprises a substrate, wherein a plurality of electronic components are welded on the surface of the substrate, a plurality of wires are arranged on the surface of the substrate, adjacent electronic components are electrically connected through the wires, a plurality of clamping columns are arranged at the bottom of the substrate, one ends of the clamping columns extend outwards to form fixing parts, the tops of the fixing parts are fixedly connected with the substrate, a plurality of limiting plates are arranged on the surface of the clamping columns, the limiting plates extend along the length direction of the clamping columns, and circular grooves are formed on the surface of the limiting plates.

Inventors

  • FAN XIN
  • Lou Fangxue

Assignees

  • 广东上平智能电气有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (5)

  1. 1. The circuit board structure convenient to install comprises a substrate, the surface welding of substrate has a plurality of electronic components, the surface of substrate is provided with a plurality of wires, carries out electric connection through the wire between the adjacent electronic components, wherein the bottom of substrate is provided with a plurality of clamping posts, the one end of clamping post outwards extends to form fixed part, the top of fixed part with the substrate carries out fixed connection, the surface of clamping post is provided with a plurality of limiting plates, the limiting plate extends along the length direction of clamping post, the surface of limiting plate is provided with the circular groove, the one end of limiting plate outwards extends to form fixed part, the bottom of substrate is provided with the bottom plate, the inside of clamping post is hollow structure, the inner wall of clamping post is provided with the internal thread, the surface of substrate is provided with a plurality of long bolts, the surface of long bolts is provided with the external screw thread that cooperatees with the internal thread, the long bolt passes the clamping post and extends to the bottom of clamping post, the length of long bolt is greater than the height of clamping post.
  2. 2. The circuit board structure of claim 1, wherein the substrate has a plurality of pins, and the pins are arranged at equal intervals.
  3. 3. The circuit board structure of claim 2, wherein the length of the pins is greater than the length of the long bolts.
  4. 4. The circuit board structure of claim 2, wherein the pins are L-shaped.
  5. 5. The circuit board structure according to any one of claims 1 to 4, wherein the thickness of the bottom plate is smaller than the thickness of the substrate, and the bottom plate is made of metal material.

Description

Circuit board structure convenient to installation Technical Field The utility model relates to the field of circuit board structures, in particular to a circuit board structure convenient to install. Background The names of the circuit boards are ceramic circuit boards, aluminum oxide ceramic circuit boards, aluminum nitride ceramic circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper plates, impedance boards, PCBs, ultrathin circuit boards, printed (copper etching technology) circuit boards and the like. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in mass production of fixed circuits and optimization of the layout of electrical appliances. The circuit board is widely applied to various frequency conversion speed regulation fan controllers, water pump frequency conversion speed regulation controllers, outdoor power supplies, charging piles, air conditioners and other daily electrical appliances. The conventional circuit board is fixed by adopting direct-insertion screws, and is lack of anti-loosening design. For example, the screw connection is connected with the equipment shell only through 2-4 screw holes at the edge of the base plate, and the screw connection is easy to loosen due to fatigue under vibration or impact load (such as electromagnetic vibration when the charging pile works). And a limit structure is not designed, so that the circuit board is easy to generate horizontal displacement when the interface is plugged or expanded with heat and contracted with cold. The circuit board is easy to loosen and separate, so that the tightness of the circuit board is poor, and secondly, the circuit board adopts a single-layer substrate structure, the thickness of a base material is generally between 1.0 and 1.6mm, and for high-power devices or dense element layout, the local stress concentration easily causes the warp deformation of the substrate. In particular, under high temperature operating environments (e.g., charging pile modules), the difference in thermal expansion coefficients of the different materials can exacerbate the structural deformation. In addition, traditional mounting mode is fixed through the point contact only (like 4 angle bolts), lacks face bearing structure, and the central region easily produces the sagging because of the dead weight, influences electrical connection reliability, does not have extra bearing structure, leads to overall structure not firm enough, and easy bending or deformation, the rigidity of circuit board is poor. Disclosure of utility model In order to overcome the defects of the prior art, the utility model provides a circuit board structure convenient to install, and the technical problems of poor tightness and poor rigidity of the traditional circuit board can be effectively solved. The circuit board structure comprises a substrate, a plurality of electronic components are welded on the surface of the substrate, a plurality of wires are arranged on the surface of the substrate, adjacent electronic components are electrically connected through the wires, a plurality of clamping columns are arranged at the bottom of the substrate, one ends of the clamping columns extend outwards to form fixing parts, the top of the fixing parts are fixedly connected with the substrate, a plurality of limiting plates are arranged on the surface of the clamping columns, the limiting plates extend along the length direction of the clamping columns, circular grooves are arranged on the surface of the limiting plates, one ends of the limiting plates extend outwards to form fixing parts, a bottom plate is arranged at the bottom of the substrate, the inside of the clamping columns is of a hollow structure, internal threads are arranged on the inner walls of the clamping columns, a plurality of long bolts are arranged on the surface of the substrate, the long bolts are provided with external threads matched with the internal threads, and penetrate through the clamping columns and extend to the bottoms of the clamping columns, and the length of the long bolts is larger than the height of the clamping columns. Further, a plurality of pins are arranged on the surface of the substrate, and the adjacent pins are distributed at equal intervals. Further, the length of the pin is greater than the length of the long bolt. Further, the pins are L-shaped. Further, the thickness of the bottom plate is smaller than that of the substrate, and the bottom plate is made of metal materials. Compared with the prior art, the circuit board structure convenient to install has the beneficial effects that the locking structure is formed by arranging the clamping columns, the limiting plates and the annular grooves, the transverse friction force is increased by the design of the annular grooves of the limiting plates, the circuit board can be quickly installed and locked by directly pressing the circuit board, the long bol