A signal transmission connector

Abstract

This invention relates to the field of connectors and discloses a signal transmission connector, including a terminal block and a plurality of signal terminals inserted into the terminal block; the terminal block includes an integrally formed front end plate, a middle plate, a rear end plate, and a snap-fit ​​plate connected to the front end plate, and the interior of the terminal block has a plurality of terminal mounting holes for placing the signal terminals; the terminal block has a placement groove corresponding to the position of the connecting plate that mates with the snap-fit ​​plate; the signal terminals include a pin unit and a cable connection unit; the pin unit includes an integrally formed lower wall, a first side wall connected to the lower wall, a second side wall, and an upper wall integrally formed with the second side wall; the upper wall is provided with an upper snap-fit ​​part that engages with the rear end plate; the first side wall is provided with a first spring and a second spring bent toward the second side wall, and the first spring and the second spring overlap each other; this invention can provide a more stable contact force, thereby improving the stability of the contact.

Description

Technical Field

[0001] This invention relates to the field of connector technology, specifically to a signal transmission connector. Background Technology

[0002] Signal connectors are components used in electrical and electronic equipment to transmit and exchange electrical signals. They play an important role in a variety of applications, including automotive battery management systems, communications, computer networks, audio and video equipment, and automated control systems. The main function of signal connectors is to ensure reliable transmission of electrical signals between different devices or systems. These connectors are usually made of conductive materials, such as copper, aluminum, and silver. To improve the quality and stability of signal transmission, connector design needs to consider a variety of factors, such as impedance matching, noise suppression, and electromagnetic compatibility (EMC).

[0003] A patent search revealed that Chinese patent CN114639977B discloses a signal transmission connector mounted on a printed circuit board. The connector includes: a metal housing with a first side facing the printed circuit board and a second side facing away from the printed circuit board, the first side having a concave cavity; at least one signal module including an insulator and signal terminals fixed to the insulator, the signal module being embedded in the concave cavity; and an elastic conductive component conforming to the first side of the metal housing. When the connector is pressed into the printed circuit board, the elastic conductive component is elastically compressed and makes ground contact with the conductive area of ​​the printed circuit board. This elastic compression and reliable contact with the conductive area of ​​the printed circuit board results in a shorter, more reliable, and more complete signal return path, achieving better grounding and reducing crosstalk between signals.

[0004] However, most signal transmission connectors on the market currently use single-spring contact structures for their terminals. After repeated insertion and removal, the contact points of the single-spring contact structure are prone to wear, resulting in unstable contact and affecting the service life of the signal transmission connector. In addition, after prolonged use, the terminals of traditional signal transmission connectors are prone to coming out of the terminal block (core), which affects the normal use of the signal transmission connector. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a signal transmission connector that solves the problems mentioned in the background.

[0006] This invention provides the following technical solution: This invention discloses a signal transmission connector, comprising:

[0007] Terminal block and several sets of signal terminals that plug into the terminal block;

[0008] The terminal block includes an integrally formed front end plate, middle plate, rear end plate, and a snap-fit ​​plate connected to the front end plate. The interior of the terminal block has several sets of terminal mounting holes for placing signal terminals.

[0009] The intermediate plate and the rear plate are connected to each other by a connecting plate, and the terminal block has a placement groove that cooperates with the snap-fit ​​plate at the position corresponding to the connecting plate.

[0010] The signal terminal includes a pin unit for placing pins and a cable connection unit connected to the pin unit;

[0011] The pin unit includes an integrally formed lower wall, a first side wall connected to the lower wall, a second side wall, and an upper wall integrally formed with the second side wall;

[0012] The upper wall is provided with an upper engaging part that engages with the rear end plate;

[0013] The first sidewall is provided with a first spring sheet and a second spring sheet that bend toward the second sidewall, and the first spring sheet and the second spring sheet overlap each other.

[0014] As a preferred embodiment, the snap-fit ​​plate includes a flat plate portion connected to the terminal block and a snap-fit ​​portion connected to the flat plate portion;

[0015] The intermediate plate has a snap-fit ​​boss on one side corresponding to the placement slot, which cooperates with the snap-fit ​​part.

[0016] As a preferred embodiment, the rear end plate has a locking hole at the position corresponding to the terminal mounting hole. After the signal terminal extends into the interior of the terminal mounting hole, the upper locking part springs upward to the locking hole and locks into the rear end plate.

[0017] As a preferred embodiment, the first spring and the second spring respectively include a connecting piece connected to the first sidewall and an arc-shaped piece connected to the connecting piece;

[0018] The lower wall is further provided with raised ribs at positions corresponding to the arc-shaped piece.

[0019] As a preferred embodiment, the second spring also includes a limiting protrusion disposed near the second sidewall, and the second sidewall has a limiting hole at a position corresponding to the limiting protrusion.

[0020] As a preferred embodiment, a reinforcing layer is embedded at the upper end of the arc-shaped piece.

[0021] As a preferred embodiment, the reinforcing layer is made of alumina nanoparticles.

[0022] As a preferred embodiment, the terminal mounting holes are arranged in two parallel rows.

[0023] As a preferred embodiment, the rear end plate has a horizontal mounting groove at a position corresponding to the position between two rows of terminal mounting holes, and the rear end plate has a number of vertical mounting grooves at the position corresponding to the horizontal mounting groove, the vertical mounting grooves being arranged between two adjacent sets of terminal mounting holes.

[0024] As a preferred embodiment, a horizontal shielding plate is fixedly installed inside the horizontal mounting slot, and a vertical shielding plate is fixedly installed inside the vertical mounting slot. The horizontal shielding plate has an insertion hole at a position corresponding to the vertical shielding plate for the vertical shielding plate to pass through.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In the signal transmission connector of the present invention, the signal terminal adopts a structure in which the first spring and the second spring overlap each other. This design allows the signal terminal to provide a more stable contact force when inserted and pulled out, thereby improving the stability of the contact and reducing the risk of poor contact after long-term use.

[0027] Furthermore, the present invention employs an engagement structure between the upper engagement portion and the rear end plate, which causes the upper engagement portion of the terminal to spring up and engage with the engagement hole of the rear end plate when the signal terminal is inserted into the terminal mounting hole. At the same time, the cooperation between the engagement portion and the terminal base increases the structural stability of the connector, ensuring that the signal terminal will not easily detach from the terminal base. The double locking structure enhances the connection stability between the signal terminal and the terminal base. Attached Figure Description

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the terminal block and signal terminals;

[0030] Figure 3 This is a schematic diagram of another structure for the terminal block and signal terminals;

[0031] Figure 4 This is a planar structural diagram of the terminal block in this invention;

[0032] Figure 5 This is a planar structural diagram of the terminal block in the present invention when the snap-fit ​​plate is closed;

[0033] Figure 6 for Figure 1 A magnified view of a portion of point A in the middle;

[0034] Figure 7 This is a three-dimensional structural diagram of the signal terminals;

[0035] Figure 8 This is a cross-sectional view of the pin unit;

[0036] Figure 9 This is a cross-sectional view of the first or second shrapnel.

[0037] Figure 10 This is a schematic diagram of the pin insertion unit;

[0038] Figure 11 This is a schematic diagram of the structure of the horizontal and vertical shielding plates.

[0039] In the diagram: 1. Terminal block; 11. Terminal mounting hole; 12. Placement slot; 2. Signal terminal; 21. Pin unit; 211. Lower wall; 2111. Rib; 212. First side wall; 213. Second side wall; 2131. Limiting hole; 214. Upper wall; 215. Upper engaging part; 216. First spring; 2161. Connecting piece; 2162. Arc-shaped piece; 2163. Reinforcing layer; 217. Second spring; 218. Limiting protrusion; 22. Cable connection unit; 3. Front end plate; 4. Middle plate; 41. Snap-fit ​​boss; 5. Rear end plate; 51. Snap-fit ​​hole; 52. Horizontal mounting slot; 53. Vertical mounting slot; 6. Snap-fit ​​plate; 61. Flat plate; 62. Snap-fit ​​part; 7. Connecting plate; 8. Horizontal shielding plate; 81. Insertion hole; 9. Vertical shielding plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-7This embodiment of a signal transmission connector includes a terminal block 1 and a plurality of signal terminals 2 inserted into the terminal block 1. The terminal block 1 includes an integrally formed front end plate 3, a middle plate 4, a rear end plate 5, and a snap-fit ​​plate 6 connected to the front end plate 3. The terminal block 1 has a plurality of terminal mounting holes 11 for placing the signal terminals 2 inside. The middle plate 4 and the rear end plate 5 are connected to each other by a connecting plate 7. The terminal block 1 has a placement groove 12 at a position corresponding to the connecting plate 7 that mates with the snap-fit ​​plate 6. The signal terminals 2 include a type of connector for placing the signal terminals 2. The needle insertion unit 21 and the cable connection unit 22 connected to the needle insertion unit 21 are provided. The needle insertion unit 21 includes an integrally formed lower wall 211, a first side wall 212 and a second side wall 213 connected to the lower wall 211, and an upper wall 214 integrally formed with the second side wall 213. The upper wall 214 is provided with an upper engaging part 215 that engages with the rear end plate 5. The first side wall 212 is provided with a first spring piece 216 and a second spring piece 217 that bend toward the second side wall 213, and the first spring piece 216 and the second spring piece 217 overlap each other.

[0042] In the signal transmission connector of the present invention, the signal terminal 2 adopts a structure in which the first spring 216 and the second spring 217 overlap. This design enables the signal terminal 2 to provide a more stable contact force when inserted and pulled out, ensuring that the terminal and the terminal block 1 always maintain good electrical contact during the insertion and removal process, thereby improving the stability of the contact and reducing the risk of poor contact after long-term use.

[0043] This spring-loaded design, especially during long-term use, can greatly reduce the risk of poor contact. Because the spring-loaded structure provides continuous elasticity and clamping force, the connector can still maintain a stable contact effect after multiple mating and unmating operations.

[0044] Furthermore, the present invention employs a locking structure between the upper locking part 215 and the rear end plate 5, so that when the signal terminal 2 is inserted into the terminal mounting hole 11, the upper locking part 215 of the terminal will pop up and lock into the locking hole 51 of the rear end plate 5. At the same time, the cooperation between the locking part 62 and the terminal base 1 increases the structural stability of the connector, ensuring that the signal terminal 2 will not easily detach from the terminal base 1. The double locking structure enhances the connection stability between the signal terminal 2 and the terminal base 1.

[0045] The introduction of a dual locking structure not only improves the service life of the signal connector, but also effectively resists external vibration and shock, ensuring that the connector can still maintain high-performance signal transmission function in long-term use or high-vibration environments.

[0046] The upper wall 214, the first side wall 212, the second side wall 213 and the upper wall 214 in the pin unit 21 surround each other to form an enclosing structure, so as to facilitate the quick insertion of the pin.

[0047] It should be noted that the cable connection unit 22 is compatible with crimped wire harnesses and FPC flexible flat cable technology.

[0048] like Figure 1-Figure 5 As shown, the snap-fit ​​plate 6 includes a flat plate portion 61 connected to the terminal block 1 and a snap-fit ​​portion 62 connected to the flat plate portion 61;

[0049] The intermediate plate 4 has a snap-fit ​​boss 41 on one side corresponding to the placement groove 12, which cooperates with the snap-fit ​​part 62.

[0050] The design of connecting the flat plate portion 61 and the snap-fit ​​portion 62 of the snap-fit ​​plate 6 makes the connector installation more secure and avoids loosening due to vibration or external force during use. The flat plate portion 61 of the snap-fit ​​plate 6 usually serves as a support, while the snap-fit ​​portion 62 provides the necessary engagement structure for fixing with the terminal block 1 or other connectors. Due to the tight connection between the flat plate portion 61 and the snap-fit ​​portion 62, the position of the snap-fit ​​plate 6 in the connector is effectively fixed, thereby preventing loosening problems caused by vibration, external force or long-term use. This design enables the connector to maintain a stable working state in complex environments and reduces the risk of poor contact or signal transmission interruption due to loosening.

[0051] Meanwhile, the locking boss 41, which mates with the locking part 62 on the intermediate plate 4, strengthens the fixed connection between the terminal block 1 and the locking plate 6, and improves the reliability of the overall structure. The locking boss 41 on the intermediate plate 4 can be tightly engaged with the mating part on the locking part 62, which enhances the fixing effect of the connector. The locking boss 41 not only provides a stable support point for the locking plate 6, but also plays a guiding and locking role during the insertion and removal process, making the connection between the locking plate 6 and the terminal block 1 more secure. In this way, even when the connector is inserted or removed or subjected to external vibration, the locking plate 6 will not easily shift or fall off.

[0052] The engagement of the snap-fit ​​boss 41 and the snap-fit ​​part 62 not only improves the fixation between the terminal block 1 and the snap-fit ​​plate 6, but also reduces wear and loosening caused by long-term use. This structural design effectively improves the reliability of the overall structure and ensures the long-term stability of the connector. Especially in high-frequency or high-load signal transmission, it can maintain stable contact force and signal transmission quality, and avoid signal attenuation or interruption due to loose snap-fit.

[0053] like Figure 6As shown, the rear end plate 5 has a locking hole 51 at the position corresponding to the terminal mounting hole 11. After the signal terminal 2 extends into the interior of the terminal mounting hole 11, the upper locking part 215 springs upward to the locking hole 51 and locks with the rear end plate 5.

[0054] By setting the engagement hole 51, it is ensured that the terminal can be engaged with the rear plate 5 through the upper engagement part 215 after insertion, thereby effectively preventing the signal terminal 2 from falling off during long-term use and improving the mechanical stability of the connector.

[0055] First, the engagement hole 51 is a specially designed positioning hole on the rear end plate 5. Its function is to provide a precise engagement position for the upper engagement part 215 of the signal terminal 2. When the signal terminal 2 is inserted into the terminal mounting hole 11 and fully inserted, the upper engagement part 215 of the signal terminal 2 will spring upward and finally align with the engagement hole 51 to form a firm engagement structure. This design of the engagement hole 51 ensures the effective connection between the signal terminal 2 and the rear end plate 5, so that the signal terminal 2 can be firmly fixed on the rear end plate 5 after insertion, avoiding the risk of the terminal falling off due to vibration, external force or frequent insertion and removal.

[0056] Secondly, the engagement between the upper engaging portion 215 and the engaging hole 51 is designed with elasticity, allowing the upper engaging portion 215 to automatically spring upward and precisely align with the engaging hole 51 during insertion. Once insertion is complete, the upper engaging portion 215 of the signal terminal 2 will be firmly locked in the engaging hole 51, forming a strong fixed connection. This elastic engaging structure not only ensures that the terminal is stably kept in the correct position, but also provides a self-locking function to a certain extent, preventing the terminal from loosening or falling off due to thermal expansion and contraction or mechanical vibration during long-term use.

[0057] Through this structural design, the mechanical stability of the connector is significantly improved. The connection between the signal terminal 2 and the rear end plate 5 no longer relies on a single insertion force or friction force, but provides a double fixing effect through the precise cooperation between the locking part and the locking hole 51, ensuring the robustness of the connector. Even under long-term operation of the equipment, frequent insertion and removal operations, or external impacts, this locking design can still maintain the stable connection of the signal terminal 2, avoiding problems such as poor contact or signal loss caused by an unstable connection.

[0058] In addition, the design of this locking hole 51 can effectively disperse the mechanical stress that the connector may suffer during use, and prevent stress concentration from causing damage to the connector or failure of the signal terminal 2. Compared with the traditional connection method that relies only on friction or mechanical clamping, the cooperation design of the locking hole 51 and the upper locking part 215 can better ensure that the signal terminal 2 is stably held in the terminal block 1 for a long time.

[0059] like Figures 7-10 As shown, the first spring piece 216 and the second spring piece 217 respectively include a connecting piece 2161 connected to the first side wall 212 and an arc-shaped piece 2162 connected to the connecting piece 2161; the lower wall 211 is also provided with a protruding rib 2111 at the position corresponding to the arc-shaped piece 2162.

[0060] The bent connecting piece 2161 and the arc-shaped piece 2162, acting as a spring and cooperating with the protruding rib 2111 provided on the lower wall 211, form an efficient and stable contact mechanism, thereby providing stronger elastic contact force, reducing the risk of poor contact, and improving the contact stability between the terminal and the signal transmission connector, avoiding the disadvantages of a single spring structure.

[0061] The design of the connecting piece 2161 and the arc-shaped piece 2162, through reasonable bending and shape design, ensures that the spring has good elastic performance. The connection between the connecting piece 2161 and the arc-shaped piece 2162 forms a highly elastic structure, which enables the spring to provide sufficient elastic contact force during insertion and removal. The bent connecting piece 2161 and the arc-shaped piece 2162 can generate elastic deformation when the terminal is inserted, so that the signal terminal 2 and the connector always maintain a stable contact pressure, thereby ensuring the quality and reliability of signal transmission. Compared with a single spring structure, the bent spring structure provides a more uniform and powerful contact force, which helps to reduce problems such as poor contact, signal interference or signal loss, especially in environments with frequent insertion and removal or high vibration.

[0062] The interaction between the raised rib 2111 on the lower wall 211 and the arc-shaped piece 2162 makes the spring piece work more stably. The design of the raised rib 2111 plays a guiding and supporting role on the lower wall 211, ensuring that the arc-shaped piece 2162 can deform in a predetermined direction when subjected to force, without deviation or uneven contact force distribution. The raised rib 2111 provides a physical constraint, avoiding unnecessary displacement or deformation of the arc-shaped piece 2162 due to uneven external force or pressure, and further ensuring a tight contact between the terminal and the connector. In this way, the signal transmission performance of the connector is enhanced, and it can still maintain a stable contact effect even under large mechanical impact or long-term use.

[0063] Compared to the traditional single-spring structure, the dual-spring design (including the first spring 216 and the second spring 217) has significant advantages. A single spring structure may not provide sufficient elastic contact force, and poor contact may easily occur due to insufficient or uneven contact force. Especially when the connector is frequently plugged and unplugged or during use, the contact between the signal terminal 2 and the connector may be affected. By introducing the dual-spring design of the first spring 216 and the second spring 217, combined with the bending structure of the connecting piece 2161 and the arc-shaped piece 2162, the contact stability of the connector in long-term use is significantly improved, the possibility of poor contact is reduced, and more reliable signal transmission is ensured.

[0064] In addition, this double spring structure can effectively reduce the operating temperature and heat loss of the connector. Because the bent springs provide uniform contact force and stronger elasticity, they can distribute pressure evenly during operation, prevent excessive local heat accumulation, and thus extend the service life of the connector.

[0065] like Figure 10 As shown, the second spring 217 also includes a limiting protrusion 218 disposed near the second sidewall 213, and the second sidewall 213 has a limiting hole 2131 at the position corresponding to the limiting protrusion 218.

[0066] By designing the limiting protrusion 218 and the limiting hole 2131, the spring is always in the optimal contact position during operation, thereby further stabilizing the contact performance of the signal terminal 2 and reducing the possibility of misinsertion.

[0067] First, the limiting protrusion 218 is a crucial component of the second spring 217. Located near the second sidewall 213, the limiting protrusion 218 is designed to prevent excessive displacement or offset of the second spring 217 during insertion and removal. This ensures that the spring is precisely aligned with the contact position of the signal terminal 2 during operation. When the signal terminal 2 is inserted, the limiting protrusion 218, through its engagement with the limiting hole 2131, restricts the range of motion of the second spring 217, keeping the spring in its predetermined working position. This design avoids poor contact due to improper spring positioning, ensuring stable contact pressure and thus making signal transmission between the signal terminal 2 and the connector more reliable.

[0068] Secondly, the limiting hole 2131 is set on the second side wall 213, corresponding to the limiting protrusion 218, and plays a positioning role for the second spring piece 217. The design of the limiting hole 2131 ensures that the limiting protrusion 218 can be accurately inserted or withdrawn during the insertion and removal process, thereby controlling the movement trajectory of the spring piece. The limiting hole 2131 not only effectively prevents the spring piece from deviating, but also reduces the excessive squeezing or stretching that may occur during use, protecting the shape and elasticity of the second spring piece 217.

[0069] In high-frequency insertion / removal or vibration environments, the cooperation between the limiting protrusion 218 and the limiting hole 2131 ensures that the spring contacts can be correctly aligned each time they are inserted, preventing poor contact due to positional deviation or misinsertion. This is crucial for signal transmission connectors, as poor contact may cause signal loss, signal interference, or unstable connection. This precise contact control is especially important in high-frequency, high-speed transmission applications.

[0070] In addition, the design of the limiting protrusion 218 and the limiting hole 2131 can extend the service life of the connector. By controlling the movement range of the spring and reducing unnecessary friction or impact, the material of the spring will not be excessively worn during long-term use, thereby maintaining its elasticity and contact force, and ensuring that the connector can still provide stable signal transmission under long-term use.

[0071] like Figure 9 As shown, a reinforcing layer 2163 is embedded at the upper end of the arc-shaped sheet 2162, and the reinforcing layer 2163 is alumina nanoparticles.

[0072] Embedding a reinforcing layer 2163 at the upper end of the arc-shaped piece 2162 can effectively improve the fatigue resistance of the spring piece, so that the signal terminal 2 can still maintain good contact performance during long-term insertion and removal, and further extend the service life of the connector.

[0073] Using alumina nanoparticles as the reinforcing layer material 2163 gives the spring surface higher fatigue resistance, effectively reducing the degree of bending and deformation. This allows the spring to maintain high elasticity and recovery force during repeated use, thereby preventing performance degradation caused by fatigue accumulation and further enhancing the stability and service life of the signal transmission connector.

[0074] The processing technology for the reinforcing layer 2163 is as follows:

[0075] Pre-compression stress field induces matrix modification. At the upper end of the arc-shaped sheet 2162 (the wave valley region, which is generally a stress concentration area with a wavelength of 2 mm and a wave height of 0.5 mm), nanoscale micropores or lattice defects (approximately 50-100 nm in size) are formed through local pre-compression deformation (such as laser shock). This region generates higher surface energy due to plastic deformation, which is beneficial for the subsequent adsorption and anchoring of nanoparticles.

[0076] Sol-gel impregnation + in-situ curing: Alumina nanoparticles (50nm in diameter) are dispersed in an ethanol-silane coupling agent composite sol, and impregnated into the pores of the pre-compressed area by ultrasonic-assisted impregnation; then cured by gradient temperature increase (120-300℃ in stages) to form a physical-chemical bonding interface between the particles and the matrix.

[0077] High-temperature sintering strengthening involves short-time high-temperature sintering (450-550℃, holding for 10-30s) under vacuum conditions to promote the formation of a partial diffusion layer between alumina particles and arc-shaped sheet 2162, while utilizing the phase transformation stress of gradient materials to enhance the particle bonding strength.

[0078] The pre-compression stress at the upper end of the arc-shaped sheet 2162 enables the particles and the matrix to form a micro-regional compressive bond, effectively improving the local elastic modulus and thus enhancing the creep resistance of the arc-shaped sheet 2162, making the contact pressure distribution more uniform. In addition, the mesoporous alumina thin layer (thickness <5nm) covering the particle surface improves the fracture toughness through crack deflection and energy dissipation.

[0079] like Figures 1-6 , Figure 11 As shown, the terminal mounting holes 11 are arranged in two parallel rows. The rear end plate 5 has a horizontal mounting groove 52 at the position corresponding to the two rows of terminal mounting holes 11. The rear end plate 5 has a number of vertical mounting grooves 53 at the position corresponding to the horizontal mounting grooves 52. The vertical mounting grooves 53 are arranged between two adjacent sets of terminal mounting holes 11.

[0080] A horizontal shielding plate 8 is fixedly installed inside the horizontal mounting groove 52, and a vertical shielding plate 9 is fixedly installed inside the vertical mounting groove 53. The horizontal shielding plate 8 has an insertion hole 81 at a position corresponding to the vertical shielding plate 9 for the vertical shielding plate 9 to pass through.

[0081] By setting two rows of terminal mounting holes 11, the signal transmission density of the signal transmission connector is improved, enabling the connector to accommodate more signal terminals 2 in a more compact space, thus meeting higher technical requirements.

[0082] The rear end board 5 is provided with a horizontal mounting slot 52 and a vertical mounting slot 53, which enables the signal transmission connector to better manage the position of the horizontal shielding plate 8 and the vertical shielding plate 9, effectively preventing signal interference and improving signal quality.

[0083] The horizontal mounting slot 52 is mainly used to install the horizontal shielding plate 8. The shielding plate is used to isolate electromagnetic interference between different signal channels and prevent the signal from being interfered with by external noise or other signal sources during transmission. It is also mainly used to isolate crosstalk between the upper and lower rows of signal terminals 2. By opening the horizontal mounting slot 52 on the rear end plate 5, a precise installation position can be provided for the horizontal shielding plate 8, ensuring that the shielding plate can effectively cover the area of ​​the signal terminals 2, thereby minimizing the interference that may occur during signal transmission and improving the stability and clarity of the signal.

[0084] The vertical mounting slot 53 is used to install the vertical shielding plate 9. These shielding plates also play a role in preventing signal interference. The design of the vertical mounting slot 53 allows the vertical shielding plate 9 to be installed in close fit with the arrangement of the signal terminals 2, further enhancing the isolation between signal channels and preventing crosstalk and interference between adjacent signal terminals 2. Especially in high-frequency signal transmission, signal interference is a particularly prominent problem. The vertical shielding plate 9 can effectively reduce this problem and ensure the stability and quality of signal transmission.

[0085] By combining the horizontal and vertical mounting slots 53, the connector can better shield and isolate signals, forming a strong anti-interference barrier.

[0086] Optionally, the horizontal shielding plate 8 and the vertical shielding plate 9 are made of materials such as copper alloy, aluminum alloy, and nickel-based alloy. The horizontal shielding plate 8 and the vertical shielding plate 9 can be fixed inside the horizontal mounting groove 52 or the vertical mounting groove 53 by adhesive or other means.

[0087] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A signal transmission connector, characterized in that, include: Terminal block (1) and several sets of signal terminals (2) inserted into the terminal block (1); The terminal block (1) includes an integrally formed front end plate (3), middle plate (4), rear end plate (5), and a snap-fit ​​plate (6) connected to the front end plate (3). The terminal block (1) has several sets of terminal mounting holes (11) for placing signal terminals (2) inside. The intermediate plate (4) and the rear plate (5) are connected to each other by a connecting plate (7). The terminal block (1) has a placement groove (12) that cooperates with the snap-fit ​​plate (6) at the position corresponding to the connecting plate (7). The signal terminal (2) includes a pin unit (21) for placing pins and a cable connection unit (22) connected to the pin unit (21). The pin unit (21) includes an integrally formed lower wall (211), a first side wall (212) connected to the lower wall (211), a second side wall (213), and an upper wall (214) integrally formed with the second side wall (213). The upper wall (214) is provided with an upper engaging part (215) that engages with the rear end plate (5). The first sidewall (212) is provided with a first spring piece (216) and a second spring piece (217) that bend toward the second sidewall (213), and the first spring piece (216) and the second spring piece (217) overlap each other; The rear end plate (5) has a locking hole (51) at the position corresponding to the terminal mounting hole (11). After the signal terminal (2) extends into the interior of the terminal mounting hole (11), the upper locking part (215) springs upward to the locking hole (51) and locks with the rear end plate (5). The rear end plate (5) has a horizontal mounting groove (52) at a position corresponding to the two rows of terminal mounting holes (11), and the rear end plate (5) has a number of vertical mounting grooves (53) at the position of the horizontal mounting groove (52), and the vertical mounting grooves (53) are arranged between two adjacent sets of terminal mounting holes (11). A horizontal shielding plate (8) is fixedly installed inside the horizontal mounting groove (52), and a vertical shielding plate (9) is fixedly installed inside the vertical mounting groove (53). The horizontal shielding plate (8) has an insertion hole (81) for the vertical shielding plate (9) to pass through at a position corresponding to the vertical shielding plate (9).

2. The signal transmission connector according to claim 1, characterized in that: The snap-fit ​​plate (6) includes a flat plate portion (61) connected to the terminal block (1) and a snap-fit ​​portion (62) connected to the flat plate portion (61). The intermediate plate (4) has a snap-fit ​​boss (41) on one side corresponding to the placement groove (12) that cooperates with the snap-fit ​​part (62).

3. The signal transmission connector according to claim 1, characterized in that: The first spring piece (216) and the second spring piece (217) respectively include a connecting piece (2161) connected to the first sidewall (212) and an arc-shaped piece (2162) connected to the connecting piece (2161). The lower wall (211) is further provided with a raised rib (2111) at the position corresponding to the arc-shaped piece (2162).

4. The signal transmission connector according to claim 3, characterized in that: The second spring (217) also includes a limiting protrusion (218) disposed near the second sidewall (213), and the second sidewall (213) has a limiting hole (2131) at a position corresponding to the limiting protrusion (218).

5. The signal transmission connector according to claim 3, characterized in that: The upper end of the arc-shaped piece (2162) is provided with a reinforcing layer (2163).

6. The signal transmission connector according to claim 5, characterized in that: The reinforcing layer (2163) is composed of alumina nanoparticles.

7. The signal transmission connector according to claim 1, characterized in that: The terminal mounting holes (11) are arranged in two rows in parallel.

Images