An expandable circuit board
By introducing components such as sliders, slide rails, and springs at the circuit board interface, the deformation and stress during the insertion and removal process are compensated, which solves the problem of fatigue and deformation of traditional interface structures under long-term stress and improves the stability and lifespan of the interface.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANYUAN INTELLIGENT TECHNOLOGY (HUAIAN) CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, frequent plugging and unplugging of expansion modules places high demands on the mechanical strength of the interface. Traditional soldering or plugging structures are prone to material fatigue or deformation under long-term stress, leading to loose interfaces or PCB bending, resulting in poor contact or component failure.
A reinforced mechanism is adopted, including components such as sliders, slide rails, springs and limit rods, to compensate for the deformation and stress of the circuit board interface during insertion and removal through sliding and elastic deformation, thereby reducing the stress on the interface and lowering the probability of material fatigue and deformation.
It effectively reduces deformation and loosening of the interface during frequent plugging and unplugging, extends service life, maintains the positional accuracy and stability of the interface, and avoids damage caused by stress impact.
Smart Images
Figure CN224438152U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board technology, and in particular to an expandable circuit board. Background Technology
[0002] Expandable circuit boards are a special type of circuit board that are designed with future functional expansion in mind, reserving a series of interfaces such as slots and pads, and also supporting modular components.
[0003] However, in existing technologies, frequent plugging and unplugging of expansion modules places higher demands on the mechanical strength of the interface. Traditional soldering or plug-in structures are prone to material fatigue or deformation under long-term stress and lack reinforcement design, which can lead to loose interfaces or PCB bending, ultimately resulting in poor contact or component failure. Utility Model Content
[0004] The purpose of this invention is to address the problem in the prior art where frequent plugging and unplugging of expansion modules places higher demands on the mechanical strength of the interface, while traditional welding or plug-in structures are prone to material fatigue or deformation under long-term stress. Therefore, this invention proposes an expandable circuit board.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an expandable circuit board, comprising a circuit board body, a circuit board interface mounted on the upper part of the circuit board body, a reinforcing mechanism fixedly connected to the side of the circuit board interface, the reinforcing mechanism being fixedly connected to the circuit board body, the reinforcing mechanism including a fixed leg and a connecting plate, a slide rail fixedly connected to the side of the fixed leg, a slider slidably connected inside the slide rail, a second spring fixedly connected to the side of the slider, the second spring being fixedly connected to the inner wall of the slide rail, the connecting plate being fixedly connected to the slider, and a limit rod slidably inserted into the surface of the connecting plate, the end of the limit rod being fixedly connected to the side of the circuit board interface, a first spring being provided on the surface of the limit rod, one end of the first spring being fixedly connected to the connecting plate, and the other end of the first spring being fixedly connected to the limit rod.
[0006] Preferably, a guide rod is fixedly connected inside the slide rail, and the slider is slidably inserted into the guide rod.
[0007] Preferably, the guide rod is located at the center of the second spring.
[0008] Preferably, the connecting plate surface is provided with four limiting rods, which are evenly distributed on the connecting plate surface.
[0009] Preferably, one end of the limiting rod is fixedly connected to a mounting plate, and one end of the No. 1 spring is fixedly connected to the end of the limiting rod through the mounting plate.
[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0011] 1. In this utility model, the slider slides along the slide rail, and the same number spring compresses or stretches to compensate for the deformation and stress generated by the circuit board interface during insertion and removal. This reduces the deformation of the circuit board interface during insertion and removal, reduces the force at the connection between the circuit board interface and the circuit board body, absorbs and buffers these impact forces, and avoids the impact force acting directly on the circuit board interface. This reduces the probability of material fatigue, deformation, and loosening of the interface due to stress impact from frequent insertion and removal, and extends the service life of the interface.
[0012] 2. In this utility model, by sliding the limiting rod along the connecting plate, the No. 1 spring is stretched and compressed, thereby compensating for the deformation and stress on the circuit board interface in the left and right directions, reducing the deformation of the circuit board interface during insertion and removal, reducing the force at the connection between the circuit board interface and the circuit board body, helping to maintain the positional accuracy and stability of the circuit board interface, and reducing the damage to the interface caused by shaking during insertion and removal. Attached Figure Description
[0013] Figure 1 This utility model provides a first three-dimensional structural schematic diagram of an expandable circuit board;
[0014] Figure 2 This utility model provides a second three-dimensional structural diagram of an expandable circuit board;
[0015] Figure 3 A top view of an expandable circuit board is provided for this utility model.
[0016] Figure 4 This invention provides a top-view cross-sectional view of a slide rail in an expandable circuit board.
[0017] Legend: 1. Circuit board body; 2. Circuit board interface; 3. Reinforcing mechanism; 31. Fixed leg; 32. Slide rail; 33. Slider; 34. Connecting plate; 35. Limiting rod; 36. Spring No. 1; 37. Guide rod; 38. Spring No. 2. Detailed Implementation
[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Example 1: As Figures 1-4 As shown, this utility model provides an expandable circuit board, including a circuit board body 1, a circuit board interface 2 installed on the upper part of the circuit board body 1, a reinforcing mechanism 3 fixedly connected to the side of the circuit board interface 2, the reinforcing mechanism 3 being fixedly connected to the circuit board body 1, the reinforcing mechanism 3 including a fixed leg 31 and a connecting plate 34, a slide rail 32 fixedly connected to the side of the fixed leg 31, a slider 33 slidably connected inside the slide rail 32, a second spring 38 fixedly connected to the side of the slider 33, the second spring 38 being fixedly connected to the inner wall of the slide rail 32, a guide rod 37 fixedly connected inside the slide rail 32, the slider 33 and the guide rod 37 being slidably inserted into each other, the guide rod 37 being located at the center of the second spring 38.
[0021] The specific settings and functions of this embodiment are described in detail below. When the circuit board interface 2 is expanded and installed on the upper part of the circuit board body 1, the reinforcing mechanism 3 is fixedly installed on the side of the circuit board interface 2. When the external connector is plugged and unplugged from the circuit board interface 2, the circuit board interface 2 will have a tendency to move back and forth on the surface of the circuit board body 1, or even a certain deformation. At this time, the slider 33 slides along the slide rail 32, and the same spring 36 generates compression or tension deformation, which compensates for the deformation and stress generated by the circuit board interface 2 during the plugging and unplugging process, reduces the deformation effect of the circuit board interface 2 during the plugging and unplugging process, reduces the force at the connection between the circuit board interface 2 and the circuit board body 1, absorbs and buffers these impact forces, and avoids the impact force acting directly on the circuit board interface 2. In this way, the probability of material fatigue, deformation and loosening of the interface due to stress impact from frequent plugging and unplugging is reduced, and the service life of the interface is extended.
[0022] Example 2: Figures 1-4 As shown, the connecting plate 34 is fixedly connected to the slider 33, and a limit rod 35 is slidably inserted into the surface of the connecting plate 34. The end of the limit rod 35 is fixedly connected to the side of the circuit board interface 2. A first spring 36 is provided on the surface of the limit rod 35. One end of the first spring 36 is fixedly connected to the connecting plate 34, and the other end of the first spring 36 is fixedly connected to the limit rod 35. Four limit rods 35 are provided on the surface of the connecting plate 34. The four limit rods 35 are evenly distributed on the surface of the connecting plate 34. One end of the limit rod 35 is fixedly connected to the mounting plate, and one end of the first spring 36 is fixedly connected to the end of the limit rod 35 through the mounting plate.
[0023] The overall effect of this embodiment is that, during the insertion and removal process, the circuit board interface 2 is also affected by external forces in the left and right directions. At this time, the limiting rod 35 slides along the connecting plate 34, and the first spring 36 is stretched and compressed, thereby compensating for the deformation and stress of the circuit board interface 2 in the left and right directions, reducing the deformation of the circuit board interface 2 during the insertion and removal process, reducing the force at the connection between the circuit board interface 2 and the circuit board body 1, helping to maintain the positional accuracy and stability of the circuit board interface 2, and reducing the damage to the interface caused by shaking during the insertion and removal process.
[0024] The usage method and working principle of this device: When this utility model is used, when the circuit board interface 2 is expanded and installed on the upper part of the circuit board body 1, the reinforcing mechanism 3 is fixedly installed on the side of the circuit board interface 2. When the external connector is plugged in and out of the circuit board interface 2, the circuit board interface 2 will have a tendency to move back and forth on the surface of the circuit board body 1, or even a certain deformation. At this time, the slider 33 slides along the slide rail 32, and the same spring 36 produces compression or tension deformation, which compensates for the deformation and stress generated by the circuit board interface 2 during the plugging and unplugging process.
[0025] Meanwhile, during the insertion and removal process, the circuit board interface 2 will also be affected by external forces in the left and right directions. At this time, the limit rod 35 slides along the connecting plate 34, and the first spring 36 is stretched and compressed, thereby compensating for the deformation and stress of the circuit board interface 2 in the left and right directions.
[0026] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. An expandable circuit board, comprising a circuit board body (1), wherein a circuit board interface (2) is mounted on the upper part of the circuit board body (1), characterized in that: A reinforcing mechanism (3) is fixedly connected to the side of the circuit board interface (2). The reinforcing mechanism (3) is fixedly connected to the circuit board body (1). The reinforcing mechanism (3) includes a fixed leg (31) and a connecting plate (34). A slide rail (32) is fixedly connected to the side of the fixed leg (31). A slider (33) is slidably connected inside the slide rail (32). A second spring (38) is fixedly connected to the side of the slider (33). The second spring (38) is fixedly connected to the inner wall of the slide rail (32). The connecting plate (34) is fixedly connected to the slider (33). A limit rod (35) is slidably inserted into the surface of the connecting plate (34). The end of the limit rod (35) is fixedly connected to the side of the circuit board interface (2). A first spring (36) is provided on the surface of the limit rod (35). One end of the first spring (36) is fixedly connected to the connecting plate (34), and the other end of the first spring (36) is fixedly connected to the limit rod (35).
2. The expandable circuit board according to claim 1, characterized in that: The guide rod (37) is fixedly connected inside the slide rail (32), and the slider (33) is slidably inserted into the guide rod (37).
3. An expandable circuit board according to claim 2, characterized in that: The guide rod (37) is located at the center of the second spring (38).
4. An expandable circuit board according to claim 1, characterized in that: The surface of the connecting plate (34) is provided with four limiting rods (35), which are evenly distributed on the surface of the connecting plate (34).
5. An expandable circuit board according to claim 1, characterized in that: One end of the limiting rod (35) is fixedly connected to an installation plate, and one end of the first spring (36) is fixedly connected to the end of the limiting rod (35) through the installation plate.