A five-hole socket structure for a circuit board

Abstract

The utility model discloses a five -hole socket structure for circuit board, including socket casing, socket circuit board, E pole, L pole, N pole bolt and corresponding conductive sheet of it, baffle and protection board. E pole, L pole, N pole bolt are through socket circuit board and are inserted to the conductive sheet in the casing respectively. The conductive sheet is fixed in the slot, and is electrically connected with the bolt. The socket casing is internally provided with the protection board and the baffle of slidable, and the baffle is provided with the opening of alignment conductive sheet, and the protection board is through horizontal sliding to make the conductive sheet opening and its protection opening butt joint, thereby form a kind of five -hole socket structure that can realize effective conduction connection, and have higher safety performance. The utility model structure is compact, and assembly integration degree is high, has good insulation protection effect and anti -touching design, is applicable to various electrical equipment.

Description

Technical Field

[0001] This utility model relates to the field of socket technology, and in particular to a five-hole socket structure for circuit boards. Background Technology

[0002] In existing electrical equipment, sockets, as common electrical connection components, are typically fixed to the equipment housing or mounted on a dedicated bracket using screws or terminal blocks. While this structure is widely used, its limitations are becoming increasingly apparent in scenarios with high requirements for size, wiring simplicity, and integration. Especially in designs that require sockets to be directly integrated into circuit boards, traditional sockets, due to their large size and limited interface options, struggle to achieve a direct and stable connection to the circuit board.

[0003] To adapt to the trend of circuit board integration, some products attempt to combine sockets and circuit boards through transfer modules or adapter structures. However, these methods are usually complex in structure and increase in size, which not only increases the manufacturing cost of the product but also makes wiring more cumbersome. In addition, the traditional connection between sockets and circuit boards mostly relies on soldering, which is not only complicated to operate but also prone to problems such as poor soldering and short circuits, thereby reducing the electrical stability and long-term reliability of the overall equipment.

[0004] In terms of safety, existing socket structures generally lack effective dynamic protection mechanisms and cannot automatically block the conductive path when not inserted, which can easily lead to safety hazards such as accidental electric shock and foreign object ingress. The connection between the pin and the conductive plate is mostly a simple plug-in structure, which has weak resistance to insertion and removal fatigue and is prone to loosening or failure due to long-term use.

[0005] Therefore, there is an urgent need for a new type of five-hole socket structure that is compact, easy to weld, compatible with circuit board installation, and has good electrical performance and safety protection functions, so as to improve the integration, installation stability and safety of the socket, and meet the design requirements of high integration, lightweight and high reliability of modern electrical equipment. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a five-hole socket structure for circuit boards, which can improve the integration, installation stability and safety of the socket.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a five-hole socket structure for a circuit board, comprising a socket housing, a socket circuit board, an E-pole pin, an L-pole pin, an N-pole pin, an E-pole conductive sheet, an L-pole conductive sheet, an N-pole conductive sheet, a baffle, and a protective plate, wherein the E-pole conductive sheet, the L-pole conductive sheet, the N-pole conductive sheet, the baffle, and the protective plate are integrated inside the socket housing;

[0008] The socket housing has a first socket, a second socket, and a third socket on the side near the socket circuit board. The E-pole pin, the L-pole pin, and the N-pole pin pass through the socket circuit board and extend into the socket housing from the first socket, the second socket, and the third socket in sequence.

[0009] The E-pole conductive sheet, the L-pole conductive sheet, and the N-pole conductive sheet are inserted into the socket circuit board and electrically connected to the E-pole pin, the L-pole pin, and the N-pole pin, respectively.

[0010] The socket housing has a first slot, a second slot, and a third slot inside, and the E-pole conductive piece, the L-pole conductive piece, and the N-pole conductive piece are respectively inserted into the first slot, the second slot, and the third slot;

[0011] The baffle is disposed between the E-polar conductive sheet, the L-polar conductive sheet, the N-polar conductive sheet and the protective plate. The baffle has an E-polar opening, an L-polar opening and an N-polar opening facing the E-polar conductive sheet, the L-polar conductive sheet and the N-polar conductive sheet respectively.

[0012] The protection plate is slidably installed inside the socket housing. The protection plate has multiple protection openings. When the protection plate slides horizontally, the E pole opening, the L pole opening, and the N pole opening are connected to the protection openings.

[0013] Furthermore, the baffle is provided with a plurality of positioning posts on the side facing the E-pole pin, the L-pole pin, and the N-pole pin, and the socket housing is provided with positioning slots facing each of the positioning posts, and each positioning post is inserted into the corresponding positioning slot.

[0014] Furthermore, the baffle is provided with a first limiting rod, a second limiting rod, and a pair of limiting blocks on the side facing the E-pole pin, the L-pole pin, and the N-pole pin. The first limiting rod abuts against the side of the L-pole conductive sheet away from the second slot, the second limiting rod abuts against the side of the N-pole conductive sheet away from the third slot, and the pair of limiting blocks abut against the side of the E-pole conductive sheet away from the first slot.

[0015] Furthermore, the socket housing has a first connection port and a second connection port on its upper and lower sides, respectively, and the protective plate has a first locking block and a second locking block on its upper and lower sides, respectively. The first locking block is slidably inserted into the first connection port, and the second locking block is slidably inserted into the second connection port.

[0016] Furthermore, the baffle has a pair of opposing limiting baffles on the side facing the protective plate, and the protective plate has a pair of opposing limiting openings, and the limiting baffles can be horizontally slidably inserted into the limiting openings.

[0017] Furthermore, the protective plate has a spring-loaded groove on the side facing the baffle, and a spring is placed in the spring-loaded groove. The two ends of the spring are respectively fixedly connected to the inner side of the limiting baffle.

[0018] Furthermore, the protective opening includes an upper opening and a lower opening. The inner side of the upper opening is provided with a first inclined surface, and the inner side of the lower opening is provided with a second inclined surface. The side of the baffle facing the protective plate is provided with a first limiting rib and a second limiting rib. The shape of the first limiting rib is adapted to the shape of the first inclined surface, and the shape of the second limiting rib is adapted to the shape of the second inclined surface.

[0019] When the protective plate is compressed during horizontal sliding, the first limiting rib and the second limiting rib abut against the first inclined surface and the second inclined surface respectively to limit the protective plate.

[0020] Furthermore, a third inclined surface is provided on the outer side of the lower opening, and a third limiting rib is provided on the side of the baffle facing the protective plate. The shape of the third limiting rib is adapted to the shape of the third inclined surface.

[0021] When the protective plate is compressed during horizontal sliding, the third limiting rib abuts against the third inclined surface to limit the protective plate.

[0022] The beneficial effects of this utility model are:

[0023] This utility model integrates the E, L, and N poles with conductive sheets in a structured manner and connects them to the socket circuit board via a plug-in method. This avoids the problems of cumbersome soldering and easy cold solder joints in traditional sockets, improves installation efficiency and electrical connection stability, and is particularly suitable for electrical systems that require high-density integrated wiring.

[0024] This utility model integrates components such as conductive sheets, baffles, and protective plates into the socket housing, achieving an integrated design of the socket's functional modules, reducing the overall volume, and facilitating a high-functional-density layout within a limited space.

[0025] This utility model features a sliding protective plate and a baffle with a limiting function, which can effectively block the opening of the conductive sheet when not inserted, preventing accidental electric shock and foreign object intrusion, thus improving safety during use. It is particularly suitable for industrial, power and other scenarios with high safety requirements. Attached Figure Description

[0026] Figure 1 This is an exploded view of the five-hole socket structure in this utility model;

[0027] Figure 2 This is a schematic diagram of the combined state structure of the five-hole socket structure in this utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of the socket housing in this utility model;

[0029] Figure 4 This is a schematic diagram of the protective plate in this utility model.

[0030] Reference numerals: 1. Socket housing; 2. Socket circuit board; 3. E-pole pin; 4. L-pole pin; 5. N-pole pin; 6. E-pole conductive piece; 7. L-pole conductive piece; 8. N-pole conductive piece; 9. Baffle; 10. Protective plate; 11. First socket; 12. Second socket; 13. Third socket; 14. First slot; 15. Second slot; 16. Third slot; 17. Protective opening; 171. Top opening; 172. Bottom opening; 18. 19. Positioning pin; 20. Positioning slot; 21. First limiting rod; 22. Second limiting rod; 23. Limiting block; 24. First connecting port; 25. Second connecting port; 26. First locking block; 27. Second locking block; 28. Limiting baffle; 39. Limiting opening; 30. Springback placement groove; 31. Spring; 32. First inclined surface; 33. Second inclined surface; 34. Third inclined surface; 35. First limiting rib; 36. Second limiting rib; 37. Third limiting rib. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0032] Example 1, referring to Figures 1 to 3 This is the first embodiment of the present utility model. This embodiment provides a five-hole socket structure for circuit boards, which can improve the integration, installation stability and safety of the socket. It includes a socket housing 1, a socket circuit board 2, an E-pole pin 3, an L-pole pin 4, an N-pole pin 5, an E-pole conductive sheet 6, an L-pole conductive sheet 7, an N-pole conductive sheet 8, a baffle 9 and a protective plate 10. The E-pole conductive sheet 6, the L-pole conductive sheet 7, the N-pole conductive sheet 8, the baffle 9 and the protective plate 10 are integrated inside the socket housing 1.

[0033] The socket housing 1 has a first socket 11, a second socket 12 and a third socket 13 on the side near the socket circuit board 2. The E-pole pin 3, L-pole pin 4 and N-pole pin 5 pass through the socket circuit board 2 and extend into the socket housing 1 from the first socket 11, the second socket 12 and the third socket 13 in sequence.

[0034] The E-pole conductive piece 6, L-pole conductive piece 7, and N-pole conductive piece 8 are inserted into the socket circuit board 2 and electrically connected to the E-pole pin 3, L-pole pin 4, and N-pole pin 5 respectively.

[0035] The socket housing 1 has a first slot 14, a second slot 15 and a third slot 16 inside. The E-polar conductive piece 6, the L-polar conductive piece 7 and the N-polar conductive piece 8 are respectively inserted into the first slot 14, the second slot 15 and the third slot 16.

[0036] The baffle 9 is disposed between the E-polar conductive sheet 6, the L-polar conductive sheet 7, the N-polar conductive sheet 8 and the protective plate 10. The baffle 9 has an E-polar opening, an L-polar opening and an N-polar opening facing the E-polar conductive sheet 6, the L-polar conductive sheet 7 and the N-polar conductive sheet 8 respectively.

[0037] The protection plate 10 is slidably installed inside the socket housing 1. The protection plate 10 has multiple protection openings 17. When the protection plate 10 slides horizontally, the E pole opening, L pole opening and N pole opening connect to the protection openings 17 so that external electrical appliances can be connected to the five-hole socket.

[0038] Working principle of Example 1:

[0039] In this embodiment, the five-hole socket structure mainly includes a socket housing 1, a socket circuit board 2, an E-pole pin 3, an L-pole pin 4, an N-pole pin 5, an E-pole conductive sheet 6, an L-pole conductive sheet 7, and an N-pole conductive sheet 8, a baffle 9, and a protective plate 10. To achieve efficient integration and soldering of this socket structure on the socket circuit board 2, the following steps are used for assembly and installation:

[0040] First, based on the dimensions and positioning requirements of the E, L, and N pins 5 and the conductive sheet, multiple positioning holes are pre-set at corresponding positions on the socket circuit board 2. The dimensions of the positioning holes must precisely match the insertion parts of the pins and conductive sheets to ensure the stability and accuracy of the socket installation.

[0041] Align the E, L, and N pins 5 sequentially with the corresponding positioning holes on the socket circuit board 2, and insert them vertically, ensuring the section to be soldered is fully inside the hole. To ensure a high-quality electrical connection, the pins must remain vertical, avoiding any tilting or deformation. Then, heat a soldering iron to between 360°C and 400°C (adjust the temperature according to the solder wire specifications). Apply an appropriate amount of solder wire to the connection point between the pin and the socket circuit board 2, using the soldering iron tip to melt the solder and fill the gap, thus securing the pin to the socket circuit board 2 and establishing the electrical connection. Repeat the soldering operation for each pin in numerical order.

[0042] Align the five-hole socket module (including the E, L, and N conductive plates 8 and their matching structures) with the conductive plate mounting holes on the socket circuit board 2, ensuring that the entire module is vertically aligned with the socket circuit board 2. Then, slowly press down until all the conductive plates are inserted into the positioning holes. During this process, care must be taken to avoid bending of the conductive plates due to uneven force.

[0043] Following the arrangement of the conductive plates on the module, solder each contact point to the circuit board one by one. The soldering method is the same as for plug soldering; use a soldering iron to control the appropriate temperature so that the solder wire melts and flows into the gap between the conductive plate and the circuit board, forming a strong solder joint. During the soldering process, care should be taken to avoid excessive solder buildup or incomplete coverage of the solder joint.

[0044] After welding is completed, the weld joints should be visually inspected immediately to check for problems such as loose connections, short circuits, or incomplete solder joints. If any abnormalities are found, they should be repaired or re-welded in a timely manner. After confirming that the appearance is correct, use a multimeter or other electrical testing instruments to perform continuity tests and resistance checks on the socket structure to ensure that each set of pins and conductive plates achieves stable conductivity and that there are no short circuits between them.

[0045] Through the above-described embodiments, the five-hole socket structure of this utility model can be quickly and reliably installed on the circuit board, significantly improving the structural integration, welding efficiency and electrical connection reliability of the socket, and meeting the comprehensive requirements of modern electrical equipment for miniaturization, high performance and safety.

[0046] Preferred, Reference Figure 1 The baffle 9 has multiple positioning posts 18 on the side facing the E-pole pin 3, L-pole pin 4, and N-pole pin 5, for reference. Figure 3 The socket housing 1 has positioning slots 19 facing each positioning post 18, and each positioning post 18 is inserted into the corresponding positioning slot 19.

[0047] Specifically, in this embodiment, during the installation process, each positioning post 18 is inserted into the corresponding positioning slot 19, which can ensure that the baffle 9 is accurately positioned when inserted, avoid affecting the positional accuracy of the corresponding opening of the conductive sheet due to assembly offset, thereby ensuring the sliding stability of the protection plate 10.

[0048] Preferred, Reference Figure 1 The baffle 9 is also provided with a first limiting rod 20, a second limiting rod 21 and a pair of limiting blocks 22 on the side facing the E pole pin 3, L pole pin 4 and N pole pin 5. The first limiting rod 20 abuts against the side of the L pole conductive sheet 7 away from the second slot 15, the second limiting rod 21 abuts against the side of the N pole conductive sheet 8 away from the third slot 16, and the pair of limiting blocks 22 abuts against the side of the E pole conductive sheet 6 away from the first slot 14.

[0049] Specifically, in this embodiment, the design of the first limiting rod 20, the second limiting rod 21, and a pair of limiting blocks 22 can effectively prevent the conductive sheet from shifting due to insertion and extraction stress or thermal expansion during the use of the socket, thereby ensuring the long-term reliability and physical stability of the electrical connection.

[0050] Preferred, Reference Figure 3 The socket housing 1 has a first connection port 23 and a second connection port 24 on its upper and lower sides, respectively. (Refer to...) Figure 1 The upper and lower sides of the protective plate 10 are respectively provided with a first locking block 27 and a second locking block 28. The first locking block 27 can be slidably inserted into the first connecting port 23, and the second locking block 28 can be slidably inserted into the second connecting port 24.

[0051] Specifically, in this embodiment, the structural design facilitates the disassembly and maintenance of the baffle 9, while ensuring accurate alignment between the opening and the conductive sheet during use, thus improving operational safety.

[0052] Example 2, refer to Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a limiting baffle 29, a limiting opening 30, and a spring 32, which can improve the stability and automatic reset capability of the protective plate 10 during the sliding process. Specifically, the baffle 9 has a pair of opposing limiting baffles 29 on the side facing the protective plate 10, and the protective plate 10 has a pair of opposing limiting openings 30. The limiting baffles 29 can be horizontally slidably inserted into the limiting openings 30.

[0053] Preferably, the protective plate 10 has a spring placement groove 31 on the side facing the baffle 9, and a spring 32 is placed in the spring placement groove 31. The two ends of the spring 32 are respectively fixedly connected to the inner side of the limiting baffle 29.

[0054] Working principle of Example 2:

[0055] During installation, each limit baffle 29 can be horizontally slidably inserted into the limit opening 30, so that the protection plate 10 is always controlled by the guide trajectory provided by the baffle 9 when sliding, preventing deviation or jamming, and ensuring the accuracy and smoothness of sliding.

[0056] To enable the automatic reset function of the protection plate 10 when the socket is not in operation, a spring-loaded placement groove 31 is provided on the side of the protection plate 10 facing the baffle 9. A spring 32 is installed in the spring-loaded placement groove 31. The two ends of the spring 32 are fixedly connected to the inner sides of the two limit baffles 29 respectively. The spring 32 provides a rebound force after the protection plate 10 slides, so that it can automatically return to the initial closed state after the insertion force is released, effectively blocking the opening of the conductive sheet, preventing accidental electric shock or foreign objects from entering, and improving the overall safety of use.

[0057] Through the above structural design, the five-hole socket structure of this embodiment achieves stable guidance and automatic rebound of the sliding protection plate 10 while ensuring good conductive connection, thereby improving the reliability and durability of the product in high-frequency operating environments.

[0058] Example 3, referring to Figure 4 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a triple limiting inclined surface and corresponding limiting rib design, which can prevent the protective plate 10 from being deformed or damaged due to external force during horizontal sliding. Preferably, the protective opening 17 includes an upper opening 171 and a lower opening 172. The inner side of the upper opening 171 is provided with a first inclined surface 33, and the inner side of the lower opening 172 is provided with a second inclined surface 34. The side of the baffle 9 facing the protective plate 10 is provided with a first limiting rib 36 and a second limiting rib 37. The shape of the first limiting rib 36 is adapted to the shape of the first inclined surface 33, and the shape of the second limiting rib 37 is adapted to the shape of the second inclined surface 34.

[0059] When the protective plate 10 is squeezed during horizontal sliding, the first limiting rib 36 and the second limiting rib 37 abut against the first inclined surface 33 and the second inclined surface 34 respectively to limit the protective plate 10.

[0060] Preferably, a third inclined surface 35 is provided on the outer side of the lower opening 172, and a third limiting rib 38 is provided on the side of the baffle 9 facing the protective plate 10. The shape of the third limiting rib 38 is adapted to the shape of the third inclined surface 35.

[0061] When the protective plate 10 is compressed during horizontal sliding, the third limiting rib 38 abuts against the third inclined surface 35 to limit the protective plate 10.

[0062] Working principle of Example 3:

[0063] When the protective plate 10 slides horizontally during use and encounters excessive external force at the end of the slide (such as the user accidentally applying too much force or due to mechanical impact), the first limiting rib 36 contacts and abuts against the first inclined surface 33; or the second limiting rib 37 contacts and abuts against the second inclined surface 34; or the third limiting rib 38 also abuts against the third inclined surface 35 simultaneously. The above-mentioned cooperative structure effectively prevents the protective plate 10 from sliding further or popping out of the track, protects the structural integrity, and prevents damage to the internal conductive sheet or misalignment that could lead to safety risks.

[0064] This embodiment achieves a multi-layered limiting protection mechanism for the sliding path of the protection plate 10 through the precise adaptation of the first, second, and third limiting ribs 38 with the three inclined structures. This not only ensures the physical termination position of the sliding action but also provides a certain degree of buffering and structural support, thereby maintaining the stability and safety of the socket structure under sudden impact or abnormal operation conditions.

[0065] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A five-hole socket structure for a circuit board, characterized in that, The socket includes a socket housing (1), a socket circuit board (2), an E-pole pin (3), an L-pole pin (4), an N-pole pin (5), an E-pole conductive sheet (6), an L-pole conductive sheet (7), an N-pole conductive sheet (8), a baffle (9), and a protective plate (10). The E-pole conductive sheet (6), the L-pole conductive sheet (7), the N-pole conductive sheet (8), the baffle (9), and the protective plate (10) are integrated inside the socket housing (1). The socket housing (1) has a first socket (11), a second socket (12) and a third socket (13) on the side near the socket circuit board (2). The E-pole pin (3), the L-pole pin (4) and the N-pole pin (5) pass through the socket circuit board (2) and extend into the socket housing (1) in sequence from the first socket (11), the second socket (12) and the third socket (13). The E-pole conductive sheet (6), the L-pole conductive sheet (7), and the N-pole conductive sheet (8) are inserted into the socket circuit board (2) and electrically connected to the E-pole pin (3), the L-pole pin (4), and the N-pole pin (5) respectively. The socket housing (1) is provided with a first slot (14), a second slot (15) and a third slot (16), and the E-polar conductive sheet (6), the L-polar conductive sheet (7) and the N-polar conductive sheet (8) are respectively inserted into the first slot (14), the second slot (15) and the third slot (16); The baffle (9) is disposed between the E-polar conductive sheet (6), the L-polar conductive sheet (7), the N-polar conductive sheet (8) and the protective plate (10). The baffle (9) has an E-polar opening, an L-polar opening and an N-polar opening facing the E-polar conductive sheet (6), the L-polar conductive sheet (7) and the N-polar conductive sheet (8) respectively. The protective plate (10) is slidably installed inside the socket housing (1). The protective plate (10) has multiple protective openings (17). When the protective plate (10) slides horizontally, the E pole opening, the L pole opening and the N pole opening are connected to the protective openings (17).

2. The five-hole socket structure for circuit boards according to claim 1, characterized in that: The baffle (9) has multiple positioning posts (18) on one side facing the E-pole pin (3), the L-pole pin (4), and the N-pole pin (5). The socket housing (1) has positioning slots (19) facing each of the positioning posts (18), and each positioning post (18) is inserted into the corresponding positioning slot (19).

3. The five-hole socket structure for circuit boards according to claim 1, characterized in that: The baffle (9) is provided with a first limiting rod (20), a second limiting rod (21) and a pair of limiting blocks (22) on the side facing the E-pole pin (3), the L-pole pin (4) and the N-pole pin (5). The first limiting rod (20) abuts against the side of the L-pole conductive sheet (7) away from the second slot (15), the second limiting rod (21) abuts against the side of the N-pole conductive sheet (8) away from the third slot (16), and the pair of limiting blocks (22) abuts against the side of the E-pole conductive sheet (6) away from the first slot (14).

4. The five-hole socket structure for circuit boards according to claim 1, characterized in that: The socket housing (1) has a first connection port (23) and a second connection port (24) on its upper and lower sides respectively. The protective plate (10) has a first locking block (27) and a second locking block (28) on its upper and lower sides respectively. The first locking block (27) is slidably inserted into the first connection port (23), and the second locking block (28) is slidably inserted into the second connection port (24).

5. The five-hole socket structure for circuit boards according to claim 1, characterized in that: The baffle (9) has a pair of opposing limiting baffles (29) on the side facing the protective plate (10), and the protective plate (10) has a pair of opposing limiting openings (30), and the limiting baffles (29) can be horizontally slidably inserted into the limiting openings (30).

6. The five-hole socket structure for circuit boards according to claim 5, characterized in that: The protective plate (10) has a spring placement groove (31) on the side facing the baffle (9). A spring (32) is placed in the spring placement groove (31), and the two ends of the spring (32) are respectively fixedly connected to the inner side of the limiting baffle (29).

7. The five-hole socket structure for circuit boards according to claim 1, characterized in that: The protective opening (17) includes an upper opening (171) and a lower opening (172). The upper opening (171) has a first inclined surface (33) on its inner side, and the lower opening (172) has a second inclined surface (34) on its inner side. The baffle (9) has a first limiting rib (36) and a second limiting rib (37) on the side facing the protective plate (10). The shape of the first limiting rib (36) is adapted to the shape of the first inclined surface (33), and the shape of the second limiting rib (37) is adapted to the shape of the second inclined surface (34). When the protective plate (10) is squeezed during horizontal sliding, the first limiting rib (36) and the second limiting rib (37) abut against the first inclined surface (33) and the second inclined surface (34) respectively to limit the protective plate (10).

8. The five-hole socket structure for circuit boards according to claim 7, characterized in that: The lower opening (172) is further provided with a third inclined surface (35) on the outside, and the baffle (9) is further provided with a third limiting rib (38) on the side facing the protective plate (10). The shape of the third limiting rib (38) is adapted to the shape of the third inclined surface (35). When the protective plate (10) is squeezed during horizontal sliding, the third limiting rib (38) abuts against the third inclined surface (35) to limit the protective plate (10).

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