Circuit board structure convenient to install

Abstract

The utility model discloses a circuit board structure convenient to install in the field of circuit board structures, which comprises a substrate, a plurality of electronic components are welded on the surface of the substrate, a plurality of leads are arranged on the surface of the substrate, the adjacent electronic components are electrically connected through the leads, a plurality of clamping columns are arranged at the bottom of the substrate, and the clamping columns are connected with the electronic components through the leads. One end of the clamping column extends outwards to form a fixing part, the top of the fixing part is fixedly connected with the base plate, a plurality of limiting plates are arranged on the surface of the clamping column, the limiting plates extend in the length direction of the clamping column, and annular grooves are formed in the surfaces of the limiting plates; according to the circuit board structure convenient to install, the circuit board can be rapidly installed and locked by directly pressing the circuit board, the long bolts are additionally arranged, reinforcing force in the vertical direction is provided through the penetrating design of the long bolts, and the fastening performance of the circuit board is greatly improved by adopting the dual-structure mode of clamping connection and threaded connection.

Description

Technical Field

[0001] This utility model relates to the field of circuit board structure, specifically a circuit board structure that is easy to install. Background Technology

[0002] Circuit boards are known by various names, including ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, PCBs, aluminum-based boards, high-frequency boards, thick copper boards, impedance boards, ultra-thin circuit boards, and printed circuit boards (using copper etching technology). Circuit boards miniaturize and simplify circuits, playing a crucial role in the mass production of fixed circuits and optimizing the layout of electrical appliances. They are widely used in various variable frequency speed control fan controllers, water pump variable frequency speed control controllers, outdoor power supplies, charging piles, air conditioners, and other everyday electrical appliances.

[0003] Current circuit boards still suffer from the following defects: Traditional circuit boards mostly use through-hole screws for fixing, lacking anti-loosening designs. For example, they are only connected to the device housing through 2-4 screw holes on the edge of the substrate. Under vibration or impact loads (such as electromagnetic vibration during charging pile operation), the threaded connection is prone to loosening due to fatigue. Without a limiting structure, the circuit board is prone to horizontal displacement during insertion / removal or thermal expansion and contraction. This easily leads to loosening and detachment of the circuit board, resulting in poor board fastening. Secondly, the circuit board uses a single-layer substrate structure, with a substrate thickness generally between 1.0-1.6mm. For high-power devices or densely packed component layouts, local stress concentration can easily lead to substrate warping and deformation. Especially in high-temperature operating environments (such as charging pile modules), the difference in thermal expansion coefficients of different materials will exacerbate structural deformation. Furthermore, traditional installation methods only use point contact fixing (such as four-corner bolts), lacking surface support structures. The central area is prone to sagging due to its own weight, affecting the reliability of electrical connections. The lack of additional support structures results in an unstable overall structure, making it prone to bending or deformation, and the circuit board has poor rigidity. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a circuit board structure that is easy to install, which can effectively solve the technical problems of poor fastening and rigidity of existing circuit boards.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a circuit board structure that is easy to install, including a substrate, on which several electronic components are soldered, and several wires are provided on the surface of the substrate. Adjacent electronic components are electrically connected through wires. Several locking posts are provided at the bottom of the substrate. One end of each locking post extends outward to form a fixing part. The top of the fixing part is fixedly connected to the substrate. Several limiting plates are provided on the surface of each locking post. The limiting plates extend along the length direction of the locking post. Circular grooves are provided on the surface of the limiting plates. One end of each limiting plate extends outward to form a fixing part. A bottom plate is provided at the bottom of the substrate. The interior of each locking post is a hollow structure. Internal threads are provided on the inner wall of each locking post. Several long bolts are provided on the surface of the substrate. External threads that mate with the internal threads are provided on the surface of each long bolt. The long bolts pass through the locking posts and extend to the bottom of the locking posts. The length of the long bolts is greater than the height of the locking posts.

[0006] Furthermore, the surface of the substrate is provided with a plurality of pins, and adjacent pins are arranged at equal intervals.

[0007] Furthermore, the length of the pin is greater than the length of the long bolt.

[0008] Furthermore, the pins are L-shaped.

[0009] Furthermore, the thickness of the base plate is less than the thickness of the substrate, and the base plate is made of metal.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: The circuit board structure of this utility model is easy to install. By setting the locking post, limiting plate and annular groove to form an anti-loosening locking structure, the annular groove design of the limiting plate increases the lateral friction force. The circuit board can be quickly installed and locked by directly pressing the circuit board. In addition, long bolts are added. The long bolt through-hole design provides vertical reinforcement force. The dual structure of locking connection and threaded connection greatly improves the tightness of the circuit board and effectively prevents loosening caused by vibration or impact. In addition, a bottom plate is added to the bottom of the substrate. The large contact area of ​​the bottom plate enhances the rigidity of the circuit board structure. Attached Figure Description

[0011] Figure 1 This is a top view of the circuit board structure of this utility model that facilitates installation;

[0012] Figure 2 This is a front view of the circuit board structure of this utility model that facilitates installation;

[0013] Figure 3 This is a schematic diagram of the clips and long bolts in the circuit board structure of this utility model that facilitates installation.

[0014] Numbering on the map:

[0015] 1-Substrate; 2-Electronic components; 3-Wires; 4-Pin; 5-Long bolt; 6-External thread; 7-Base plate; 8-Clip pin; 801-Fixing part; 802-Limiting plate; 803-Annular groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] The following is combined Figures 1-3 The present invention provides a detailed description of its easy-to-install circuit board structure:

[0018] An easy-to-install circuit board structure includes a substrate 1. Several electronic components 2 are soldered onto the surface of the substrate 1. Several wires 3 are disposed on the surface of the substrate 1, and adjacent electronic components 2 are electrically connected through the wires 3. Several locking posts 8 are disposed at the bottom of the substrate 1. One end of each locking post 8 extends outward to form a fixing part 801, the top of which is fixedly connected to the substrate 1. Several limiting plates 802 are disposed on the surface of each locking post 8, and the limiting plates 802 extend along the length direction of the locking post 8. The limiting plate 802 has an annular groove 803 on its surface. One end of the limiting plate 802 extends outward to form a fixing part 801. The bottom of the base plate 1 has a bottom plate 7. The inside of the locking post 8 is a hollow structure. The inner wall of the locking post 8 has an internal thread. The surface of the base plate 1 has a plurality of long bolts 5. The surface of the long bolts 5 has an external thread 6 that mates with the internal thread. The long bolts 5 pass through the locking post 8 and extend to the bottom of the locking post 8. The length of the long bolts 5 is greater than the height of the locking post 8.

[0019] The surface of the substrate 1 is provided with a plurality of pins 4, which are arranged at equal intervals between adjacent pins 4. The length of the pins 4 is greater than the length of the long bolt 5. The pins 4 are L-shaped. The thickness of the base plate 7 is less than the thickness of the substrate 1. The base plate 7 is made of metal.

[0020] Four locking posts 8 are set at the bottom of the substrate 1. The diameter of the locking posts 8 is 6mm, the depth of the annular groove 803 is 0.5mm, the long bolt 5 adopts M4 thread and is 30mm long. The height of the locking posts 8 is 25mm, the thickness of the substrate 1 is 2mm, the base plate 7 is made of 1mm thick aluminum plate with anodized surface treatment, the pin 4 is designed as L-shaped, and the pin 4 forms a bent part. The bent part is connected to the edge of the substrate 1 to increase the contact area. The L-shaped structure allows the pin 4 to form an effective contact surface in both horizontal and vertical directions.

[0021] When using, insert pin 4 horizontally first and then lock it vertically. Insert it vertically into the corresponding installation position. At this time, align the locking post 8 of the circuit board structure with the corresponding installation hole, so that the annular groove 803 on the limiting plate 802 is engaged with the installation hole. Screw the long bolt 5 from the top of the substrate 1 and tighten it to the bottom of the locking post 8. Then tighten the long bolt 5 further into the corresponding installation position to complete the fixed connection.

[0022] The easy-to-install circuit board structure of this embodiment forms an anti-loosening locking structure by setting the locking post 8, the limiting plate 802, and the annular groove 803. The annular groove 803 of the limiting plate 802 is designed to increase the lateral friction force, and the circuit board can be quickly installed and locked by directly pressing the circuit board. In addition, a long bolt 5 is added, and the through design of the long bolt 5 provides vertical reinforcement force. The dual structure of locking connection and threaded connection is adopted to greatly improve the tightness of the circuit board and effectively prevent loosening caused by vibration or impact. In addition, a base plate 7 is added to the bottom of the substrate 1, and the large contact area of ​​the base plate 7 enhances the rigidity of the circuit board structure.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A circuit board structure for easy installation, comprising a substrate, wherein a plurality of electronic components are soldered to the surface of the substrate, and a plurality of wires are disposed on the surface of the substrate, wherein adjacent electronic components are electrically connected through the wires, characterized in that: The base plate has several locking posts at its bottom. One end of each locking post extends outward to form a fixing part. The top of the fixing part is fixedly connected to the base plate. Several limiting plates are provided on the surface of each locking post. The limiting plates extend along the length of the locking post and have annular grooves on their surfaces. One end of each limiting plate extends outward to form the fixing part. A base plate is provided at the bottom of the base plate. The locking posts have a hollow internal structure and internal threads on their inner walls. Several long bolts are provided on the surface of the base plate. The long bolts have external threads that mate with the internal threads. The long bolts pass through the locking posts and extend to the bottom of the locking posts. The length of the long bolts is greater than the height of the locking posts.

2. The circuit board structure for easy installation according to claim 1, characterized in that: The substrate has a number of pins on its surface, with adjacent pins arranged at equal intervals.

3. The circuit board structure for easy installation according to claim 2, characterized in that: The length of the pin is greater than the length of the long bolt.

4. The circuit board structure for easy installation according to claim 2, characterized in that: The pins are L-shaped.

5. The easy-to-install circuit board structure according to any one of claims 1-4, characterized in that: The thickness of the base plate is less than the thickness of the substrate, and the base plate is made of metal.

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