RJ adapter

Abstract

The utility model relates to the technical field of adapters, and particularly discloses an RJ adapter, which comprises a shell and an adapter element arranged in the shell. The switching element comprises an electronic element circuit board, a first terminal set, a second terminal set and a fixing piece, wherein the first terminal set and the second terminal set are arranged at the two ends of the electronic element circuit board respectively, and the fixing piece is arranged on the electronic element circuit board. The fixing piece comprises a first bottom plate, a first penetrating hole part, a second penetrating hole part and a protruding part, the first penetrating hole part, the second penetrating hole part and the protruding part are arranged on the first bottom plate, the first penetrating hole part and the second penetrating hole part are arranged on the two sides of the protruding part respectively, and the first terminal set and the second terminal set are exposed on the surface of the first bottom plate through the first penetrating hole part and the second penetrating hole part respectively.

Description

Technical Field

[0001] This utility model relates to the field of adapter technology, and in particular discloses an RJ adapter. Background Technology

[0002] RJ adapters, as devices used to switch signals between different connectors, are widely used in communications, networking, and other fields. Existing RJ adapters typically consist of a housing and an adapter element housed within it. This adapter element generally comprises an electronic circuit board and terminal blocks at its two ends. However, in practical applications, these RJ adapters have several problems. For example, the terminal blocks are not securely fixed within the adapter element, easily becoming loose and affecting the stability of signal transmission; the connection between the adapter and external connectors is unreliable, potentially leading to poor contact. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an RJ adapter.

[0004] To achieve the above objectives, the present invention provides an RJ adapter, comprising a housing and an adapter element disposed within the housing; the adapter element comprises an electronic component circuit board, a first terminal group and a second terminal group respectively disposed at both ends of the electronic component circuit board, and a fixing member disposed on the electronic component circuit board; the fixing member comprises a first base plate, a first through hole, a second through hole, and a protrusion disposed on the first base plate, the first through hole and the second through hole being respectively located on both sides of the protrusion, and the first terminal group and the second terminal group being exposed on the surface of the first base plate through the first through hole and the second through hole, respectively.

[0005] The electronic component circuit board in the adapter element, along with the first and second terminal groups at both ends, realizes the signal conversion function. The first base plate of the fixing component, with its through holes and protrusions, effectively fixes the terminal groups and exposes them for easy external connection, which not only improves connection stability but also facilitates quick access of external connectors. In practical implementation, the adapter element can be precisely installed inside the housing, ensuring that the terminal groups are correctly exposed through the through holes. External connectors are electrically connected to the corresponding terminal groups through the sockets at both ends of the housing, thus completing the assembly and use of the entire RJ adapter and meeting signal conversion requirements.

[0006] The housing has a first socket and a second socket at both ends, respectively. The first socket and the second socket expose the terminal groups at both ends of the electronic component circuit board. The external first connector is electrically connected to the first terminal group through the first socket, and the external second connector is electrically connected to the second terminal group through the second socket.

[0007] Based on the position of the electronic component circuit board terminal group, matching holes of appropriate size are precisely opened at both ends of the housing, and the holes are strictly aligned with the terminal group during assembly. When in use, users only need to insert the external connectors into the corresponding holes to quickly establish an electrical connection. The operation is simple and the connection is stable, giving full play to the functional advantages of the adapter.

[0008] One end of the terminal group is located on the side of the through-hole away from the protrusion, and the other end is located on the side of the through-hole close to the protrusion. Multiple sets of limiting strips are provided on the side walls of the protrusion. A clearance space is formed between two adjacent sets of limiting strips to accommodate the free end of the conductive terminal of the terminal group. The width of the clearance space is adapted to the thickness of the terminal group. Two adjacent sets of limiting strips together block and limit the conductive terminal of the terminal group.

[0009] The clearance space formed by multiple sets of limiting strips is precisely matched with the thickness of the terminal group, effectively preventing the terminal group from shaking or shifting during use, ensuring stable contact with external connectors, and thus improving the reliability and stability of RJ adapter signal transmission. At the same time, this structure facilitates the installation and removal of the terminal group, improving production assembly efficiency. In practice, during the manufacturing of the fixing component, the size and spacing of the protruding limiting strips are precisely controlled to ensure the clearance space matches the thickness of the terminal group. During assembly, one end of the terminal group is passed through the perforated part away from the protrusion, and the other end is placed near the protrusion. The clamping force of the limiting strips is used to fix it, thereby achieving reliable installation and precise positioning of the terminal group on the fixing component.

[0010] The protrusion is also provided with two sets of parallel elastic limiting arms. The free end of the elastic limiting arm is provided with a snap-fit ​​protrusion. The snap-fit ​​protrusion is provided with an inclined guide surface and a vertical stop surface perpendicular to the inclined guide surface. The housing is provided with two sets of limiting grooves. The side of the limiting groove is provided with a third insertion hole. The elastic limiting arm is snapped into the limiting groove through the third insertion hole. The vertical stop surface abuts against the bottom surface of the limiting groove.

[0011] The flexible limiting arm design facilitates easier assembly of the fastener and housing. The inclined guide surface allows the flexible limiting arm to slide smoothly into the limiting groove, reducing installation difficulty and improving assembly efficiency. The contact and locking between the vertical stop surface and the bottom surface of the limiting groove effectively prevents the fastener from loosening or falling out within the housing, enhancing the overall stability and reliability of the RJ adapter and ensuring stable signal transmission. In practice, during production, the flexible limiting arm, locking protrusion, limiting groove, and third socket on the housing are precisely machined to ensure dimensional accuracy and fit. During assembly, the fastener is aligned with the housing, and the flexible limiting arm is inserted into the limiting groove through the third socket. The elastic deformation allows the vertical stop surface of the locking protrusion to tightly contact and lock with the bottom surface of the limiting groove, completing the secure assembly of the fastener and housing.

[0012] The adapter also includes parallel elastic crimping members. The length direction of the elastic crimping members is consistent with the direction of the insertion hole of the housing. The protrusion is also provided with a fixing groove. The elastic crimping members are fixed to the protrusion via the fixing groove. Both ends of the elastic crimping members are respectively provided with bent portions. The external connector is pressed together by the bent portions of the two sets of parallel elastic crimping members.

[0013] Parallel elastic crimping members, in conjunction with bent sections, apply stable pressure to the external connector from both sides, ensuring tight contact between the connector and the terminal block. This effectively prevents poor contact caused by vibration or external pulling, greatly improving the reliability of signal transmission. Simultaneously, the elastic crimping members are installed on the protrusion via fixing grooves, facilitating easy installation and disassembly, as well as future maintenance and replacement. The elastic crimping members are custom-made according to the dimensions of the fixing grooves on the protrusion, and the bent sections at both ends are precisely machined. During assembly, the elastic crimping members are installed along the fixing grooves onto the protrusion, with the bent sections facing the housing insertion holes. When connecting the external connector, the bent sections of the two sets of elastic crimping members press the connector tightly from both sides, achieving a tight and stable electrical connection.

[0014] The housing has a mounting groove on its side, and the mounting groove has a trapezoidal cross-section. The mounting groove is used to fix the housing to an external component.

[0015] The trapezoidal mounting groove provides stronger anti-detachment performance than ordinary straight grooves. Its special shape allows the adapter to form a wedge-like tight fit with the external component, effectively preventing the adapter from loosening or falling off due to external forces during use, ensuring a secure installation. At the same time, this design facilitates installation and disassembly, improving assembly efficiency and ease of maintenance. In specific implementation, the trapezoidal dimensions of the mounting groove on the side of the housing must be precisely controlled during manufacturing, including parameters such as the upper base, lower base, and height, to fit the corresponding mounting structure on the external component. During installation, align the trapezoidal mounting groove on the adapter housing with the mating structure of the external component, and use moderate pressing or auxiliary tools to ensure a tight fit, completing the stable installation of the adapter on the external component.

[0016] The adapter also includes a flame-retardant sheet located between the electronic component circuit board and the housing.

[0017] Flame retardant sheets can effectively block the fire source or high temperature generated by electronic component circuit boards under abnormal conditions (such as short circuits or overloads), prevent the fire from spreading to the casing and surrounding components, reduce the risk of fire, and protect the safety of equipment and users; at the same time, it can also reduce the heat transfer to the casing to a certain extent, play a thermal buffering role for the internal circuits, and improve product stability.

[0018] The adapter also includes a support plate disposed between the terminal group and the electronic component circuit board, and the support plate is provided with a wedge-shaped protrusion that abuts against the terminal group.

[0019] The support plate provides stable support for the terminal group, effectively dispersing the stress generated when the external connector is plugged in and out, preventing damage to the connection between the terminal group and the circuit board due to excessive force, and enhancing the reliability of the connection; the wedge-shaped protrusion abuts against the terminal group, which can further reinforce the terminal group, making it less prone to displacement or deformation during use, while the arc design can also increase the contact area and improve the uniformity of stress distribution.

[0020] The outer side of the shell is provided with a frosted protective layer, which includes a sand layer covering the shell and an aluminum oxide layer covering the sand layer.

[0021] The abrasive layer increases the friction and wear resistance of the housing surface, effectively preventing surface damage caused by friction and scratches, and extending the product's service life. The outer alumina layer possesses excellent hardness and chemical stability, not only resisting external impacts but also isolating moisture and corrosive substances, enhancing the housing's corrosion and oxidation resistance, allowing the adapter to operate stably in complex environments. In practice, the manufacturing process first uses spraying and bonding processes to firmly adhere the abrasive particles to the housing surface, forming a abrasive layer. Then, anodizing and coating technologies are used to evenly cover the abrasive layer with an alumina layer. Strict control over the thickness and uniformity of the two frosted protective layers ensures a tight fit to the housing, thus providing comprehensive protection for the adapter housing and improving the overall product performance.

[0022] The surfaces of the first terminal group and the second terminal group are both plated with a gold layer with a thickness of 0.005-0.01mm to reduce contact resistance and improve conductivity and corrosion resistance.

[0023] Gold possesses extremely low resistivity and excellent chemical stability. A gold layer with a thickness of 0.005-0.01mm can effectively reduce the contact resistance between the terminal block and the external connector, minimize signal transmission loss, improve conductivity, and ensure stable signal transmission. Simultaneously, the gold layer isolates the terminal block from the external environment, preventing oxidation and corrosion, extending the adapter's lifespan, and enhancing product reliability. In practice, electroplating or chemical plating processes are employed, with strict control over plating time, current density, and other parameters to ensure the gold layer thickness is within the specified range and uniformly covers the terminal block surface. After plating, thickness gauges and other equipment are used for testing to ensure the gold layer quality meets standards, thereby fully leveraging the optimizing effect of the gold plating on the terminal block performance.

[0024] The flame-retardant sheet has multiple through holes, which are evenly distributed on the surface of the flame-retardant sheet and correspond to the positions of the heating elements on the electronic component circuit board. This is to ensure the flame-retardant effect without affecting heat dissipation.

[0025] The wedge-shaped protrusion surface of the support plate is provided with an elastic rubber pad. The elastic rubber pad has a Shore hardness of 30-40HA, which can provide support while avoiding damage to the terminal group.

[0026] The beneficial effects of this utility model are as follows: The RJ adapter of this utility model is based on the principles of modular and structurally reinforced design, achieving performance improvement through the collaboration of multiple components. The electronic component circuit board and terminal group constitute the core signal conversion module. Structures such as fixing parts, limiting strips, and elastic limiting arms ensure connection stability through precise positioning and firm clamping. The shell socket design facilitates quick access to external connectors, and the elastic crimping parts further enhance the tightness of the connection. Simultaneously, the trapezoidal mounting groove ensures stable assembly with external components. The flame-retardant sheet, support plate, frosted protective layer, and gold plating layer optimize the product from the dimensions of fire safety, stress dispersion, shell protection, and electrical performance, effectively reducing signal transmission loss, improving corrosion resistance and environmental adaptability, significantly extending product lifespan, and enhancing reliability. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is an exploded view of the entire utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the adapter and fixing component of this utility model;

[0030] Figure 4 This is a structural schematic diagram of the fastener of this utility model;

[0031] Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of structure A in the middle;

[0032] Figure 6 This is a schematic diagram of the structure of the elastic pressing component of this utility model;

[0033] Figure 7 This is a structural schematic diagram of the support plate of this utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the shell of this utility model;

[0035] Figure 9 This is a schematic diagram of the structure of the frosted protective layer of this utility model.

[0036] The reference numerals in the figures include:

[0037] 1. Housing; 2. Adapter element; 3. Electronic component circuit board; 4. First terminal group; 5. Second terminal group; 6. Fixing component; 7. First base plate; 8. First through hole; 9. Second through hole; 11. Protrusion; 12. First insertion hole; 13. Second insertion hole; 14. Limiting strip; 15. Elastic limiting arm; 16. Snap-fit ​​protrusion; 17. Inclined guide surface; 18. Vertical stop surface; 19. Limiting groove; 21. Third insertion hole; 22. Elastic pressing component; 23. Fixing groove; 24. Bending part; 25. Mounting groove; 26. Flame retardant sheet; 27. Support plate; 28. Wedge-shaped protrusion; 29. ​​Frosted protective layer; 31. Abrasive layer; 32. Alumina layer. Detailed Implementation

[0038] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0039] Please see Figures 1 to 9 As shown, an RJ adapter of this utility model includes a housing 1 and an adapter element 2 disposed within the housing 1. The adapter element 2 includes an electronic component circuit board 3, a first terminal group 4 and a second terminal group 5 respectively disposed at both ends of the electronic component circuit board 3, and a fixing member 6 disposed on the electronic component circuit board 3. The fixing member 6 includes a first base plate 7, a first through hole 8, a second through hole 9 and a protrusion 11 disposed on the first base plate 7. The first through hole 8 and the second through hole 9 are respectively opened on both sides of the protrusion 11. The first terminal group 4 and the second terminal group 5 are exposed on the surface of the first base plate 7 through the first through hole 8 and the second through hole 9 respectively.

[0040] The electronic component circuit board 3 in the adapter element 2, together with the first and second terminal groups 5 at both ends, realizes the signal conversion function. The first base plate 7 of the fixing member 6, and the through-hole and protrusion 11 thereon, can effectively fix the terminal group and expose it for easy external connection, which not only improves the connection stability, but also facilitates the quick access of external connectors. In specific implementation, the adapter element 2 can be accurately installed in the housing 1, ensuring that the terminal group is correctly exposed through the through-hole. The external connector is electrically connected to the corresponding terminal group through the sockets at both ends of the housing 1, thereby completing the assembly and use of the entire RJ adapter and meeting the signal conversion requirements.

[0041] The housing 1 has a first socket 12 and a second socket 13 at both ends. The first socket 12 and the second socket 13 expose the terminal groups at both ends of the electronic component circuit board 3 and are connected. The external first connector is electrically connected to the first terminal group 4 through the first socket 12, and the external second connector is electrically connected to the second terminal group 5 through the second socket 13.

[0042] Based on the position of the three terminal groups on the electronic component circuit board, matching holes of appropriate size are precisely opened at both ends of the housing 1, and the holes are strictly aligned with the terminal groups during assembly. When in use, users only need to insert the external connectors into the corresponding holes to quickly establish an electrical connection. The operation is simple and the connection is stable, giving full play to the functional advantages of the adapter.

[0043] One end of the terminal group is located on the side of the through-hole away from the protrusion 11, and the other end is located on the side of the through-hole close to the protrusion 11. Multiple sets of limiting strips 14 are provided on the side walls of the protrusion 11. A clearance space is formed between two adjacent sets of limiting strips 14 for accommodating the free end of the conductive terminal of the terminal group. The width of the clearance space is adapted to the thickness of the terminal group. Two adjacent sets of limiting strips 14 together block and limit the conductive terminal of the terminal group.

[0044] The clearance space formed by multiple sets of limiting strips 14 is precisely matched with the thickness of the terminal group, which can effectively prevent the terminal group from shaking or shifting during use, ensuring stable contact with the external connector, thereby improving the reliability and stability of the RJ adapter signal transmission. At the same time, this structure facilitates the installation and disassembly of the terminal group, improving production assembly efficiency. In specific implementation, during the manufacturing process of the fixing part 6, the size and spacing of the limiting strips 14 on the protrusion 11 are precisely controlled to ensure that the clearance space matches the thickness of the terminal group. During assembly, one end of the terminal group is passed through the through-hole on the side away from the protrusion 11, and the other end is placed on the side close to the protrusion 11. The clamping force of the limiting strips 14 is used to fix it, thereby achieving reliable installation and precise positioning of the terminal group on the fixing part 6.

[0045] The protrusion 11 is also provided with two sets of parallel elastic limiting arms 15. The free end of the elastic limiting arm 15 is provided with a snap-fit ​​protrusion 16. The snap-fit ​​protrusion 16 is provided with an inclined guide surface 17 and a vertical stop surface 18 perpendicular to the inclined guide surface 17. The housing 1 is provided with two sets of limiting grooves 19. The side of the limiting groove 19 is provided with a third insertion hole 21. The elastic limiting arm 15 is snapped into the limiting groove 19 through the third insertion hole 21. The vertical stop surface 18 abuts against the bottom surface of the limiting groove 19 and snaps into place.

[0046] The flexible limiting arm 15 makes the assembly of the fixing part 6 and the housing 1 more convenient. The inclined guide surface 17 facilitates the smooth sliding of the flexible limiting arm 15 into the limiting groove 19, reducing installation difficulty and improving assembly efficiency. The contact and locking between the vertical stop surface 18 and the bottom surface of the limiting groove 19 effectively prevents the fixing part 6 from loosening or falling off in the housing 1, enhancing the stability and reliability of the overall structure of the RJ adapter and ensuring stable signal transmission. In specific implementation, during the production stage, the flexible limiting arm 15 of the protrusion 11, the locking protrusion 16, and the limiting groove 19 and the third insertion hole 21 on the housing 1 are precisely machined to ensure dimensional accuracy and fit. During assembly, the fixing part 6 is aligned with the housing 1, and the flexible limiting arm 15 is locked into the limiting groove 19 through the third insertion hole 21. The elastic deformation makes the vertical stop surface 18 of the locking protrusion 16 tightly contact and lock with the bottom surface of the limiting groove 19, completing the stable assembly of the fixing part 6 and the housing 1.

[0047] The adapter also includes parallel elastic crimping members 22. The length direction of the elastic crimping members 22 is consistent with the insertion direction of the housing 1. The protrusion 11 is also provided with a fixing groove 23. The elastic crimping members 22 are fixed on the protrusion 11 via the fixing groove 23. The two ends of the elastic crimping members 22 are respectively provided with bending portions 24. The external connector is pressed together by the bending portions 24 of the two parallel elastic crimping members 22.

[0048] Parallel elastic crimping members 22, in conjunction with bent portions 24, apply stable pressure to the external connector from both sides, ensuring tight contact between the connector and the terminal group. This effectively avoids poor contact caused by vibration, external pulling, etc., greatly improving the reliability of signal transmission. Simultaneously, the elastic crimping members 22 are installed on the protrusion 11 via fixing grooves 23, facilitating easy installation and disassembly, and simplifying future maintenance and replacement. The elastic crimping members 22 are custom-made according to the dimensions of the fixing grooves 23 on the protrusion 11, and the bent portions 24 at both ends are precisely machined. During assembly, the elastic crimping members 22 are installed onto the protrusion 11 along the fixing grooves 23, with the bent portions 24 facing the insertion hole direction of the housing 1. When connecting the external connector, the bent portions 24 of the two sets of elastic crimping members 22 press the connector tightly from both sides, thereby achieving a tight and stable electrical connection.

[0049] The housing 1 has a mounting groove 25 on its side. The mounting groove 25 has a trapezoidal cross-section and is used to fix the housing 1 onto an external component.

[0050] The trapezoidal mounting groove 25 provides stronger anti-detachment performance than ordinary straight grooves. Its special shape allows the adapter to form a wedge-like tight fit with the external component, effectively preventing the adapter from loosening or falling off due to external forces during use, ensuring the stability of the installation. At the same time, this design also facilitates installation and disassembly, improving assembly efficiency and the convenience of later maintenance. In specific implementation, the trapezoidal dimensions of the mounting groove 25 on the side of the housing 1, including parameters such as the upper base, lower base, and height, need to be precisely controlled during manufacturing to adapt to the corresponding mounting structure on the external component. During installation, the trapezoidal mounting groove 25 on the adapter housing 1 is aligned with the mating structure of the external component, and by moderate pressing or using auxiliary tools, the two are tightly fitted, completing the stable installation of the adapter on the external component.

[0051] The adapter also includes a flame-retardant sheet 26, which is located between the electronic component circuit board 3 and the housing 1.

[0052] The flame retardant sheet 26 can effectively block the fire source or high temperature generated by the electronic component circuit board 3 under abnormal conditions (such as short circuit or overload), prevent the fire from spreading to the housing 1 and surrounding components, reduce the risk of fire, and protect the safety of equipment and users; at the same time, it can also reduce the heat transfer to the housing 1 to a certain extent, play a thermal buffering role for the internal circuit, and improve product stability.

[0053] The adapter also includes a support plate 27 disposed between the terminal group and the electronic component circuit board 3. The support plate 27 is also provided with a wedge-shaped protrusion 28, which abuts against the terminal group.

[0054] The support plate 27 provides stable support for the terminal group, effectively dispersing the stress generated when the external connector is plugged in and out, preventing damage to the connection between the terminal group and the circuit board due to excessive force, and enhancing the reliability of the connection; the wedge-shaped protrusion 28 abuts against the terminal group, which can further reinforce the terminal group, making it less prone to displacement or deformation during use. At the same time, the arc design can increase the contact area and improve the uniformity of stress distribution.

[0055] The outer side of the housing 1 is provided with a frosted protective layer 29, which includes a sand layer 31 covering the housing 1 and an aluminum oxide layer 32 covering the sand layer 31.

[0056] The abrasive layer 31 increases the friction and wear resistance of the housing 1 surface, effectively preventing surface damage caused by friction and scratching, and extending the product's service life. The outer aluminum oxide layer 32 possesses good hardness and chemical stability, not only resisting external impacts but also isolating moisture and corrosive substances, enhancing the housing 1's corrosion and oxidation resistance, enabling the adapter to operate stably in complex environments. In practice, during manufacturing, abrasive particles are first firmly adhered to the surface of the housing 1 through processes such as spraying and bonding to form the abrasive layer 31. Then, anodizing and coating technologies are used to evenly cover the abrasive layer 31 with the aluminum oxide layer 32. The thickness and uniformity of the two frosted protective layers 29 are strictly controlled to ensure a tight fit to the housing 1, thereby providing comprehensive protection for the adapter housing 1 and improving the overall product performance.

[0057] The surfaces of the first terminal group 4 and the second terminal group 5 are both plated with a gold layer with a thickness of 0.005-0.01mm to reduce contact resistance and improve conductivity and corrosion resistance.

[0058] Gold possesses extremely low resistivity and excellent chemical stability. A gold layer with a thickness of 0.005-0.01mm can effectively reduce the contact resistance between the terminal block and the external connector, minimize signal transmission loss, improve conductivity, and ensure stable signal transmission. Simultaneously, the gold layer isolates the terminal block from the external environment, preventing oxidation and corrosion, extending the adapter's lifespan, and enhancing product reliability. In practice, electroplating or chemical plating processes are employed, with strict control over plating time, current density, and other parameters to ensure the gold layer thickness is within the specified range and uniformly covers the terminal block surface. After plating, thickness gauges and other equipment are used for testing to ensure the gold layer quality meets standards, thereby fully leveraging the optimizing effect of the gold plating on the terminal block performance.

[0059] The flame-retardant sheet 26 is provided with multiple through holes, which are evenly distributed on the surface of the flame-retardant sheet 26 and correspond to the positions of the heating elements on the electronic component circuit board 3, so as to ensure the flame-retardant effect without affecting heat dissipation.

[0060] The surface of the wedge-shaped protrusion 28 of the support plate 27 is provided with an elastic rubber pad. The elastic rubber pad has a Shore hardness of 30-40HA, which can provide support while avoiding damage to the terminal group.

[0061] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An RJ adapter, characterized in that: The device includes a housing (1) and a connecting element (2) disposed within the housing (1). The connecting element (2) includes an electronic component circuit board (3), a first terminal group (4) and a second terminal group (5) respectively disposed at both ends of the electronic component circuit board (3), and a fixing member (6) disposed on the electronic component circuit board (3). The fixing member (6) includes a first base plate (7), a first through hole (8), a second through hole (9) and a protrusion (11) disposed on the first base plate (7). The first through hole (8) and the second through hole (9) are respectively opened on both sides of the protrusion (11), and the first terminal group (4) and the second terminal group (5) are exposed on the surface of the first base plate (7) through the first through hole (8) and the second through hole (9) respectively.

2. An RJ adapter according to claim 1, characterized in that: The housing (1) has a first socket (12) and a second socket (13) at both ends. The first socket (12) and the second socket (13) expose the terminal groups at both ends of the electronic component circuit board (3). The external first connector is electrically connected to the first terminal group (4) via the first socket (12), and the external second connector is electrically connected to the second terminal group (5) via the second socket (13).

3. An RJ adapter according to claim 1, characterized in that: One end of the terminal group is located on the side of the through-hole away from the protrusion (11), and the other end is located on the side of the through-hole close to the protrusion (11). The side walls of the protrusion (11) are provided with multiple sets of limiting strips (14). A clearance space is formed between two adjacent sets of limiting strips (14) for accommodating the free end of the conductive terminal of the terminal group. The width of the clearance space is adapted to the thickness of the terminal group. The two adjacent sets of limiting strips (14) together block and limit the conductive terminal of the terminal group.

4. An RJ adapter according to claim 1, characterized in that: The protrusion (11) is also provided with two sets of parallel elastic limiting arms (15). The free end of the elastic limiting arm (15) is provided with a snap-fit ​​protrusion (16). The snap-fit ​​protrusion (16) is provided with an inclined guide surface (17) and a vertical stop surface (18) perpendicular to the inclined guide surface (17). The housing (1) is provided with two sets of limiting grooves (19). The side of the limiting groove (19) is provided with a third insertion hole (21). The elastic limiting arm (15) is snapped into the limiting groove (19) through the third insertion hole (21). The vertical stop surface (18) abuts against the bottom surface of the limiting groove (19) and snaps together.

5. An RJ adapter according to claim 1, characterized in that: The adapter also includes parallel elastic crimping members (22), the length direction of which is consistent with the insertion direction of the housing (1), and a fixing groove (23) is provided on the protrusion (11). The elastic crimping member (22) is fixed on the protrusion (11) via the fixing groove (23). The two ends of the elastic crimping member (22) are respectively provided with bending portions (24), and the external connector is pressed together by the bending portions (24) of the two parallel elastic crimping members (22).

6. An RJ adapter according to claim 1, characterized in that: The housing (1) has a mounting groove (25) on its side. The mounting groove (25) has a trapezoidal cross-section and is used to fix the housing (1) on an external component.

7. An RJ adapter according to claim 1, characterized in that: The adapter also includes a flame retardant sheet (26), which is located between the electronic component circuit board (3) and the housing (1).

8. An RJ adapter according to claim 1, characterized in that: The adapter also includes a support plate (27) disposed between the terminal group and the electronic component circuit board (3), and the support plate (27) is provided with a wedge-shaped protrusion (28) that abuts against the terminal group.

9. An RJ adapter according to claim 1, characterized in that: The outer side of the shell (1) is provided with a frosted protective layer (29), which includes a sand layer (31) covering the shell (1) and an aluminum oxide layer (32) covering the sand layer (31).

10. An RJ adapter according to claim 1, characterized in that: The surfaces of the first terminal group (4) and the second terminal group (5) are plated with a gold layer with a thickness of 0.005-0.01mm to reduce contact resistance and improve conductivity and corrosion resistance.

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