A segmented embedded PCB board facilitating grounding

Abstract

The utility model discloses a sectional embedded PCB convenient to ground relates to embedded PCB field, the utility model discloses a mainboard, the mainboard includes mainboard body, be equipped with a plurality of first embedded slot and a plurality of second embedded slot along the first direction extension along the second direction extension on the mainboard body, the utility model discloses a embedded board is set up, and embedded board combination can perfect fit the grid -like embedded channel of crisscross on the mainboard, and the interference fit further strengthens the connection stability. The detachable design of the pin and the pin slot, cooperate with the anti -drop boss and the arc concave structure, both stable electrical connection and convenient after -sales. In addition, the embedded board edge ladder guide structure and the two -way clamping, the disassembly gap formed by the extension of the welding ear, solve the many pain points of traditional grounding mode together, and the practicality, reliability and maintainability of grounding structure have been improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of embedded PCB boards, specifically a segmented embedded PCB board that is easy to ground. Background Technology

[0002] Multi-channel sequential power supplies typically require grounding for multiple plug-in universal power sockets. This is because in complex electronic equipment power supply systems, grounding plays a crucial role in ensuring stable equipment operation, operator safety, and preventing electromagnetic interference. Each load device connected to a plug-in universal power socket may generate static electricity or leakage current during operation. Without effective grounding, these abnormal currents cannot be discharged in time, potentially damaging delicate electronic components inside the equipment, leading to performance degradation or even shutdown. Furthermore, they may electrify the equipment casing, posing a risk of electric shock to operators.

[0003] However, current multi-channel sequential power supplies typically require grounding for multiple plug-in universal power sockets. There are three common methods: the first is to directly solder a single jumper wire around each grounding pin in series; the second is to use a single PCB stripped over each power socket's grounding pin and soldering them together; the third is to use stripped cables of corresponding lengths, based on the spacing of the power socket's grounding pins, and solder them together individually. The first method has drawbacks: it's unsightly, current adjustment is inconvenient, fixing is difficult during soldering, and soldering efficiency is low. Furthermore, the thick jumper wire heats up quickly during soldering, potentially causing burns. While the second method addresses the shortcomings of the first, it introduces a new drawback: inconvenient after-sales repair and replacement. Since universal power sockets are used in high-frequency plug-and-play applications, replacing a damaged socket is extremely difficult due to the fixed PCB. The third method addresses some of the drawbacks of the first two methods, but soldering is still cumbersome, requires skilled soldering personnel, the finished product is not neat and aesthetically pleasing, and soldering efficiency is low. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to provide a segmented embedded PCB board that is easy to ground, so as to solve the technical problems of the three common methods used for grounding multiple plug-in universal power sockets in current multi-channel sequential power supply equipment, such as unsightly appearance, inconvenient current adjustment and soldering operation, low soldering efficiency, hot to the touch, difficult after-sales maintenance and replacement, high technical requirements for soldering personnel, and inconsistent finished product processes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a segmented embedded PCB board that is easy to ground, including a motherboard, the motherboard including a motherboard body, the motherboard body having a plurality of first embedding slots extending along a first direction and a plurality of second embedding slots extending along a second direction, the first embedding slots having first soldering positions on both sides, the second embedding slots having second soldering positions on both sides, and an embedding board being installed in the first embedding slots and the second embedding slots.

[0006] The plurality of embedded plates include a first embedded plate body and a second embedded plate body. The first embedded plate body has a first welding ear that matches the first embedded groove and a first pin groove that penetrates the plate body at both ends. The second embedded plate body has a second welding ear that matches the second embedded groove and a second pin groove that penetrates the plate body at both ends.

[0007] The motherboard has pins arranged at intervals, and the pins pass through the first pin slot or the second pin slot to form a detachable connection with the embedded board.

[0008] By adopting the above technical solution, the motherboard is equipped with two different oriented embedding slots, which, together with two embedding boards, can flexibly adapt to different grounding layout requirements, improve the versatility of the PCB board, and the pins and embedding boards can be detachably connected, which facilitates subsequent maintenance and replacement of the embedding boards and reduces maintenance costs.

[0009] Furthermore, the first and second embedding slots are orthogonally distributed on the motherboard body to form a grid-like interlocking channel.

[0010] By adopting the above technical solution, the motherboard is equipped with two different oriented embedding slots, which, together with two embedding boards, can flexibly adapt to different grounding layout requirements, improve the versatility of the PCB board, and the pins and embedding boards can be detachably connected, which facilitates subsequent maintenance and replacement of the embedding boards and reduces maintenance costs.

[0011] Furthermore, the surfaces of the first and second welding ears are provided with metallized pads corresponding to the first and second welding positions, and the width of the welding ears is greater than the opening width of the embedding groove to form an interference fit.

[0012] By adopting the above technical solution, the first and second embedding slots are orthogonally distributed to form a grid-like interlocking channel, which optimizes the use of motherboard space, facilitates the layout and routing of electronic components, and the grid-like structure makes the connection between the embedding board and the motherboard more stable, reducing the risk of loosening caused by vibration or external force.

[0013] Furthermore, the opening sidewalls of the first and second pin grooves are arc-shaped recesses to restrict the lateral displacement of the pins.

[0014] By adopting the above technical solution, the width of the welding ear is greater than the width of the embedding groove opening to form an interference fit, thereby enhancing the mechanical connection strength between the embedding plate and the main plate.

[0015] Furthermore, the edge of the embedded plate is provided with a stepped guide structure that matches the depth of the embedded groove, and the guide structure forms a bidirectional locking position within the embedded groove.

[0016] By adopting the above technical solution, metallized pads are provided on the surface of the welding ear to improve welding quality and ensure stable electrical connection. The width of the welding ear is greater than the width of the insertion slot opening to form an interference fit, thereby enhancing the mechanical connection strength between the insertion board and the main board.

[0017] Furthermore, the top of the needle is provided with an anti-detachment protrusion that contacts the inner wall of the first needle groove and the second needle groove, and the cross-sectional dimension of the anti-detachment protrusion is larger than the opening width of the needle groove.

[0018] By adopting the above technical solution, the arc-shaped concave design of the pin slot opening sidewall accurately limits the lateral displacement of the pin, ensures the precise connection position between the pin and the embedded plate, prevents the pin from shaking under vibration or external force, and ensures long-term stability of the electrical connection.

[0019] Furthermore, the copper cladding layers on the surfaces of the first and second embedded boards form a double-layer conductive path through vias, and the width of the copper cladding layers gradually changes along the pin arrangement direction.

[0020] By adopting the above technical solution, the stepped guide structure facilitates the accurate insertion of the embedded plate into the embedded slot, improving installation efficiency. The bidirectional locking design enhances the connection strength between the embedded plate and the motherboard, preventing the embedded plate from becoming loose.

[0021] Furthermore, the welding lugs at both ends of the embedded plate extend beyond the edge of the main body, forming a disassembly notch for tool prying.

[0022] By adopting the above technical solution, the anti-detachment protrusion design on the top of the pin effectively prevents the pin from falling out of the pin groove. The anti-detachment structure is simple, easy to process and manufacture, and does not affect the normal insertion of the pin and electrical connection.

[0023] In summary, the present invention has the following main advantages:

[0024] This utility model comprises an embedded plate, a first embedded plate body, a first welding ear, a first pin slot, a second embedded plate body, a second welding ear, and a second pin slot. The first and second embedded plate bodies are combined to flexibly adapt to the crisscrossing grid-like interlocking channels on the motherboard, meeting the grounding requirements of multiple plug-in universal power sockets with different layouts in multi-channel sequential power supply devices. The first embedded plate body is precisely welded to the first welding positions on both sides of the first embedded slot on the motherboard via the first welding ear at both ends. The second embedded plate body is precisely welded to the second welding positions on both sides of the second embedded slot on the motherboard via the second welding ear at both ends. The metallized pads on the surface of the welding ear ensure the reliability and conductivity of the welding, and the interference fit between the welding ear and the embedded slot further enhances the connection stability between the embedded plate and the motherboard. The first pin slot... The second pin slot penetrates the corresponding embedded board and forms a detachable connection with the pins spaced apart on the main board. The anti-detachment protrusion on the top of the pin and the arc-shaped recessed structure on the side wall of the pin slot opening cooperate with each other to limit the lateral displacement of the pin, ensure the stability of the electrical connection, and facilitate the removal of the embedded board when needed, making after-sales maintenance and replacement convenient. In addition, the stepped guide structure on the edge of the embedded board matches the depth of the embedded slot to form a two-way locking, which enhances the stability of the embedded board installation. At the same time, the welding ears at both ends of the embedded board extend beyond the edge of the main board to form a disassembly notch, providing maintenance personnel with convenient tool operation space. This solves the problems of low welding efficiency, unsightly appearance, and difficult after-sales maintenance in traditional grounding methods, and significantly improves the practicality, reliability and maintainability of the grounding structure of multi-channel sequential power supply equipment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a partial three-dimensional structural diagram of the motherboard of this utility model;

[0027] Figure 3 This is a partial three-dimensional structural diagram of the embedded plate of this utility model;

[0028] Figure 4 This is a partial three-dimensional structural diagram of the second embedded plate of this utility model.

[0029] In the diagram: 1. Mainboard; 101. Mainboard body; 102. First embedding groove; 103. First soldering position; 104. Second embedding groove; 105. Second soldering position; 106. Pin; 2. Embedding board; 201. First embedding board body; 202. First soldering ear; 203. First pin groove; 204. Second embedding board body; 205. Second soldering ear; 206. Second pin groove. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] A segmented embedded PCB board that facilitates grounding, such as Figure 1-4 As shown, the system includes a motherboard 1, which includes a motherboard body 101. The motherboard body 101 is provided with a plurality of first embedding slots 102 extending in a first direction and a plurality of second embedding slots 104 extending in a second direction. The first embedding slots 102 are provided with first soldering positions 103 on both sides, and the second embedding slots 104 are provided with second soldering positions 105 on both sides. An embedding plate 2 is installed in the first embedding slots 102 and the second embedding slots 104.

[0032] Multiple embedded plates 2 include a first embedded plate body 201 and a second embedded plate body 204. The first embedded plate body 201 has a first welding ear 202 that matches the first embedded groove 102 and a first pin groove 203 that penetrates the plate body at both ends. The second embedded plate body 204 has a second welding ear 205 that matches the second embedded groove 104 and a second pin groove 206 that penetrates the plate body at both ends.

[0033] The motherboard 1 has pins 106 arranged at intervals. The pins 106 pass through the first pin slot 203 or the second pin slot 206 to form a detachable connection with the embedded board 2. The motherboard body is simultaneously provided with a plurality of first embedded slots extending along the first direction and a plurality of second embedded slots extending along the second direction. This bidirectional embedded slot design enables the PCB board to flexibly adapt to the grounding requirements in various complex circuit layouts. The embedded slots in different directions and positions provide multiple options for the installation of the embedded board. Whether the grounding requirements are linear or irregularly distributed, they can all be achieved by reasonably installing the embedded board, greatly improving the versatility and adaptability of the PCB board. This reduces the need to redesign the PCB board due to different grounding layouts, saving development costs and time. The main board 101 is provided with first embedded slots 102 and second embedded slots 104 in different directions, and can accommodate matching first embedded board bodies 201 and second embedded board bodies 204. This design can flexibly adapt to the grounding requirements under various complex circuit layouts. Whether the grounding layout is linear or irregular, it can all be achieved by reasonably installing the embedded board, greatly improving the PCB board's adaptability to different grounding scenarios. This reduces the need to redesign the PCB board due to special grounding layouts, saving development time and costs. The pins 106 and the embedded board 2 form a detachable connection through the through-hole first pin slot 203 or second pin slot 206. When the embedded board malfunctions or the grounding design needs to be upgraded, the embedded board can be easily removed from the main board for replacement or repair without requiring a complete overhaul of the PCB. The board underwent major modifications, reducing maintenance costs and difficulty, and improving the maintainability and lifespan of the product.

[0034] See Figure 3 , Figure 4 The first embedding slot 102 and the second embedding slot 104 are orthogonally distributed on the main board 101 to form a grid-like interlocking channel. This layout makes the grounding path more regular and orderly, reduces the detours and intersections of the grounding path, lowers the grounding resistance, improves the grounding effect, ensures good electromagnetic compatibility and stability of the circuit during operation, and reduces interference and faults caused by poor grounding. The grid-like interlocking channel provides standardized positioning and guidance for the installation of the embedding board. During the assembly process, workers can quickly and accurately install the embedding board into the corresponding position, improving assembly efficiency and accuracy, reducing quality problems caused by installation errors, and also facilitating subsequent automated production and quality control.

[0035] See Figure 1 , Figure 2The surfaces of the first welding ear 202 and the second welding ear 205 are provided with metallized pads corresponding to the first welding position 103 and the second welding position 105, and the width of the welding ear is greater than the opening width of the embedding groove to form an interference fit. The metallized pads on the surfaces of the first welding ear 202 and the second welding ear 205 cooperate with the corresponding first welding position 103 and the second welding position 105 to provide a good welding interface, ensure a firm weld, reduce problems such as increased contact resistance or open circuit caused by poor welding, improve the reliability and stability of the grounding connection, and ensure the normal operation of the circuit. The interference fit formed by the width of the welding ear is greater than the opening width of the embedding groove. This design can not only play a preliminary positioning and fixing role for the embedding board before welding to prevent the embedding board from shifting during the welding process, but also make the welded parts tighter after welding due to the pressure generated by the interference fit. This further enhances the mechanical connection strength between the embedding board and the motherboard and improves the PCB board's resistance to damage under vibration, impact and other environments.

[0036] See Figure 1 , Figure 4 The opening sidewalls of the first pin slot 203 and the second pin slot 206 are arc-shaped recesses to limit the lateral displacement of the pin 106. The arc-shaped recess design of the opening sidewalls of the first pin slot 203 and the second pin slot 206 can effectively limit the lateral displacement of the pin 106, making the connection between the pin and the embedded plate more stable, reducing problems such as poor contact or changes in contact resistance caused by pin shaking, ensuring stable transmission of grounding signals, and improving the reliability and stability of the circuit. The arc-shaped recessed sidewalls can play a certain guiding role during the pin installation process, making it easier and more accurate to insert the pin into the pin slot, reducing the difficulty of assembly and the requirements for the operator's operating skills, improving assembly efficiency, and reducing quality problems caused by assembly errors.

[0037] See Figure 1 , Figure 2 The embedded board 2 has a stepped guide structure on its edge that matches the depth of the embedded slot. The guide structure forms a two-way locking position within the embedded slot. During the installation process, the guide structure can accurately guide the embedded board into the embedded slot, ensuring that the embedded board is installed in the correct position. This improves the accuracy and efficiency of the installation and reduces problems such as poor grounding or interference with other circuit components caused by installation position deviations. The two-way locking position of the guide structure within the embedded slot effectively fixes the embedded board in the embedded slot, preventing it from loosening or shifting due to vibration, impact, or other factors during PCB board operation. This ensures the reliability and stability of the grounding connection and improves the PCB board's resistance to damage in complex environments.

[0038] See Figure 3 , Figure 4 The top of pin 106 is provided with an anti-detachment protrusion that contacts the inner wall of the first pin slot 203 and the second pin slot 206. The cross-sectional dimension of the anti-detachment protrusion is larger than the opening width of the pin slot. The anti-detachment protrusion on the top of pin 106, with its cross-sectional dimension larger than the opening width of the pin slot, can effectively prevent the pin from falling out of the pin slot. Even when the PCB board is subjected to large external forces or long-term vibration, it can ensure the stable connection between the pin and the embedded board, ensure the normal transmission of the grounding signal, and improve the reliability and stability of the circuit. The contact between the anti-detachment protrusion and the inner wall of the first pin slot 203 and the second pin slot 206 increases the contact area between the pin and the embedded board, reduces the contact resistance, improves the grounding effect, reduces the heat generation and energy loss caused by excessive contact resistance, and extends the service life of the PCB board.

[0039] See Figure 1 , Figure 4 The copper cladding layers on the surfaces of the first embedded board 201 and the second embedded board 204 form a double-layer conductive path through vias, and the width of the copper cladding layer gradually changes along the pin arrangement direction of 106. The copper cladding layer forming a double-layer conductive path through vias increases the current transmission channel, effectively reduces grounding resistance, improves current carrying capacity, ensures stable transmission of grounding signals under high current conditions, reduces problems such as heat generation and voltage drop caused by excessive current, and improves circuit performance and stability. The design of the copper cladding layer width gradually changing along the pin arrangement direction can reasonably allocate the width of the copper cladding layer according to the current distribution at the pins, making the current more evenly distributed on the embedded board, avoiding hot spots caused by excessive local current, improving the heat dissipation performance and service life of the embedded board, and also reducing electromagnetic interference caused by uneven current.

[0040] See Figure 3 , Figure 4 The welding ears at both ends of the embedded board 2 extend beyond the edge of the main board 101, forming a disassembly notch for tool prying. The disassembly notch formed by the welding ears at both ends of the embedded board 2 extending beyond the edge of the main board 101 provides operating space for disassembly tools. When it is necessary to disassemble the embedded board, workers can easily insert tools into the disassembly notch and pry the embedded board off the main board, simplifying the disassembly process, improving disassembly efficiency, and reducing the risk of PCB board damage due to disassembly difficulties. This easy-to-disassemble design makes the maintenance and replacement of the embedded board more convenient. When the embedded board fails, it can be quickly replaced, reducing production losses caused by equipment downtime for maintenance, while also reducing maintenance costs and improving the maintainability and economy of the product.

[0041] The implementation principle of this embodiment is as follows: First, during the design and manufacturing stage of the motherboard 1, based on the layout planning of multiple plug-in universal power sockets in the multi-channel sequential power supply device, multiple first embedding slots 102 extending along the first direction and multiple second embedding slots 104 extending along the second direction are precisely opened on the motherboard body 101. This ensures that the first embedding slots 102 and the second embedding slots 104 are orthogonally distributed on the motherboard body 101, forming a grid-like interlocking channel, thereby constructing an embedded basic framework that adapts to different grounding requirements and has a regular structure. At the same time, first soldering positions 103 are pre-set on both sides of the first embedding slot 102, and second soldering positions 105 are pre-set on both sides of the second embedding slot 104. These soldering positions, through precise circuit design and layout, provide a guarantee for the reliable soldering and electrical connection of the subsequent embedded board 2. Furthermore, pins 106 are arranged at intervals. The layout and size of the pins 106 are strictly calculated to meet the subsequent matching requirements with the embedded board 2, providing a stable electrical connection node for the entire grounding structure.

[0042] Next, for different embedding slot layouts, a first embedding plate 201 and a second embedding plate 204 are manufactured respectively. First welding ears 202, precisely matching the size and shape of the first embedding slot 102, are carefully machined at both ends of the first embedding plate 201. The surface of the first welding ears 202 is specially processed to set metallized pads corresponding to the first welding position 103. These metallized pads undergo rigorous conductivity testing and quality inspection to ensure good conductivity and welding reliability. Simultaneously, the width of the first welding ears 202 is designed to be greater than the opening width of the first embedding slot 102 to form an interference fit. This interference fit ensures a tight connection between the embedding plate and the main board while effectively preventing loosening due to vibration or external forces. Furthermore, a first pin groove 203 is machined through the first embedding plate 201. The size and shape of the first pin groove 203 are precisely designed to accommodate the subsequent passage and fixation of the pins 106. Similarly, second welding ears 205 matching the second embedding groove 104 are machined at both ends of the second embedding board 204. The surface of the second welding ears 205 is also provided with metallized pads corresponding to the second welding position 105, and the width is greater than the opening width of the second embedding groove 104 to form an interference fit. A second pin groove 206 is machined through the board body of the second embedding board 204 to ensure the fitting accuracy between it and the pin 106. At the same time, in order to optimize the electrical performance of the embedding board 2, the copper cladding layers on the surface of the first embedding board 201 and the second embedding board 204 form a double-layer conductive path through a precision via process. This double-layer conductive path not only improves the current carrying capacity but also enhances electromagnetic compatibility. Furthermore, the width of the copper cladding layer gradually changes along the arrangement direction of the pin 106. This gradual design helps to distribute the current evenly, reduce local heating, and improve the stability and reliability of the entire grounding structure. In addition, a stepped guide structure matching the depth of the embedding groove is machined on the edge of the embedding plate 2. This guide structure forms a two-way locking position in the embedding groove, which can accurately guide the embedding plate into the embedding groove during the installation process and ensure that the embedding plate is accurately and stably positioned in the embedding groove without any displacement or shaking.

[0043] Subsequently, the assembly process of the embedded plate 2 and the main board 1 is carried out. The first embedded plate 201 is slowly pushed in along the direction of the first embedded groove 102. During the pushing process, the stepped guide structure on the edge of the first embedded plate 201 precisely matches the first embedded groove 102 to achieve bidirectional positioning, ensuring that the first embedded plate 201 accurately reaches the predetermined position. At this time, the first welding ear 202 and the first welding position 103 are tightly fitted together. Using professional welding equipment and appropriate welding technology, the first welding ear 202 and the first welding position 103 are firmly welded together to form a reliable electrical and mechanical connection. During the welding process, parameters such as welding temperature, time, and welding pressure are strictly controlled to ensure that the welding quality meets high standards and to avoid welding defects such as incomplete welding and cold welding. Similarly, the second embedded plate 204 is pushed in along the direction of the second embedded groove 104, and the stepped guide structure on the edge of the plate is used to achieve bidirectional locking with the second embedded groove 104, so that the second welding ear 205 and the second welding position 105 are tightly attached. Then, the same welding process is used to weld the second welding ear 205 and the second welding position 105 firmly, and the assembly of the second embedded plate 204 and the main board 1 is completed.

[0044] After the embedded plate 2 and the main board 1 are soldered together, the pins 106 are connected to the embedded plate 2. The pins 106, spaced apart on the main board 1, are sequentially passed through the first pin slot 203 or the second pin slot 206. Because the opening sidewalls of the first and second pin slots 203 and 206 are arc-shaped recesses, this unique structural design allows the pins 106 to fit tightly against their outer surface as they pass through, effectively limiting lateral displacement and ensuring stable positioning of the pins 106 on the embedded plate 2, thus guaranteeing the reliability of the electrical connection. Simultaneously, the top of each pin 106 has an anti-detachment protrusion that contacts the inner walls of the first and second pin slots 203 and 206. The cross-sectional dimension of this anti-detachment protrusion is larger than the opening width of the pin slot. After the pin 106 passes through the pin slot, the anti-detachment protrusion can be locked inside the pin slot, preventing the pin 106 from falling off due to external force, further enhancing the stability of the connection. This completes the assembly of the segmented embedded PCB board, which facilitates grounding. This PCB board can meet the grounding requirements of multiple plug-in universal power sockets in multi-channel sequential power supply equipment, and has the advantages of stable structure, reliable electrical connection, and easy maintenance and replacement.

[0045] When after-sales repair or replacement of a specific embedded board 2 is required, the welding lugs at both ends of the embedded board 2 extend beyond the edge of the main board 101, forming a disassembly notch for tool prying. Repair personnel can use specialized disassembly tools, inserting them into the notch and applying appropriate prying force to overcome the connecting force between the welding lugs and the welding position, thus smoothly removing the embedded board 2 from the embedded slot without damaging the main board 1 or other components. After replacing the embedded board 2, reinstallation and soldering are performed according to the above assembly steps, quickly restoring the equipment to normal operation and greatly improving the efficiency and convenience of after-sales repair.

[0046] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A segmented embedded PCB board that facilitates grounding, characterized in that: The system includes a motherboard (1), which includes a motherboard body (101). The motherboard body (101) is provided with a plurality of first embedding slots (102) extending in a first direction and a plurality of second embedding slots (104) extending in a second direction. The first embedding slots (102) are provided with first soldering positions (103) on both sides, and the second embedding slots (104) are provided with second soldering positions (105) on both sides. An embedding plate (2) is installed in the first embedding slots (102) and the second embedding slots (104). The plurality of embedded plates (2) include a first embedded plate body (201) and a second embedded plate body (204). The first embedded plate body (201) has a first welding ear (202) that matches the first embedded groove (102) and a first pin groove (203) that penetrates the plate body at both ends. The second embedded plate body (204) has a second welding ear (205) that matches the second embedded groove (104) and a second pin groove (206) that penetrates the plate body at both ends. The motherboard (1) has pins (106) arranged at intervals. The pins (106) pass through the first pin groove (203) or the second pin groove (206) to form a detachable connection with the embedded plate (2).

2. The segmented embedded PCB board for easy grounding according to claim 1, characterized in that: The first embedding groove (102) and the second embedding groove (104) are orthogonally distributed on the main body (101) to form a grid-like interlocking channel.

3. The segmented embedded PCB board for easy grounding according to claim 1, characterized in that: The surfaces of the first welding ear (202) and the second welding ear (205) are provided with metallized pads corresponding to the first welding position (103) and the second welding position (105), and the width of the welding ear is greater than the opening width of the embedding groove to form an interference fit.

4. The segmented embedded PCB board for easy grounding according to claim 1, characterized in that: The opening sidewalls of the first pin groove (203) and the second pin groove (206) are arc-shaped recesses to limit the lateral displacement of the pin (106).

5. The segmented embedded PCB board for easy grounding according to claim 1, characterized in that: The edge of the embedded plate (2) is provided with a stepped guide structure that matches the depth of the embedded groove, and the guide structure forms a bidirectional locking position in the embedded groove.

6. The segmented embedded PCB board for easy grounding according to claim 1, characterized in that: The top of the pin (106) is provided with an anti-detachment protrusion that contacts the inner wall of the first pin groove (203) and the second pin groove (206), and the cross-sectional dimension of the anti-detachment protrusion is larger than the opening width of the pin groove.

7. The segmented embedded PCB board for easy grounding according to claim 1, characterized in that: The copper cladding layers on the surfaces of the first embedded board (201) and the second embedded board (204) form a double conductive path through vias, and the width of the copper cladding layer gradually changes along the pin (106) arrangement direction.

8. The segmented embedded PCB board for easy grounding according to claim 1, characterized in that: The welding lugs at both ends of the embedded plate (2) extend beyond the edge of the main body (101) to form a disassembly notch for tool prying.

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