Right angle PCMCIA male connector

Abstract

The application discloses a right-angle PCMCIA male connector, which comprises an insulating body, a plurality of rows of terminals and a metal shielding member. The insulating body is provided with a guide block, and a plurality of through guide grooves are formed on the guide block. The guide grooves comprise guide grooves extending along a first direction and guide grooves extending along a second direction, and the two kinds of guide grooves are perpendicular to each other. The plurality of rows of terminals comprise first right-angle terminals arranged in sequence, second right-angle terminals located at the periphery of the first right-angle terminals, and third right-angle terminals located at the outermost row. The third right-angle terminals comprise a plurality of terminal connecting parts and a connecting lock plate fixedly connected with the terminal connecting parts, and the plurality of terminal connecting parts are positioned and fixed by the same connecting lock plate. The connector is compact in structure, accurate in guidance, stable in terminal positioning, suitable for high-speed signal transmission and reliable mechanical fixation of a PCMCIA standard interface, and has good electromagnetic shielding performance.

Description

Technical Field

[0001] This invention relates to the field of connector technology, specifically to a right-angle male connector for PCMCIA interfaces, and more particularly to a PCMCIA right-angle male connector with multi-stage right-angle terminals and a mechanical fixing structure. Background Technology

[0002] The PCMCIA (Personal Computer Memory Card International Association) interface is a commonly used expansion card connection standard, widely used in computers, communication equipment, and other electronic products. To meet the needs of different installation orientations and spatial layouts, right-angle PCMCIA male connectors are widely used.

[0003] Existing right-angle PCMCIA male connectors generally include an insulating body, multiple rows of right-angle terminals, and a metal shield. The terminals are mostly single-layer or double-layer structures, and are fixed through through holes in the insulating body.

[0004] In existing designs, terminals are mainly fixed by the friction between the terminal teeth and the plastic holes of the insulating body. When the connector is subjected to insertion / removal impacts or transportation vibrations, some terminals may become loose or even displaced, resulting in poor contact.

[0005] In existing designs, the mechanical fixing function is often performed by the signal terminals, which affects the layout of the signal terminals, reduces the reliability of the mechanical fixing, and is prone to solder joint fatigue during long-term use.

[0006] In some structures, the mechanical connection between the shield and the terminal is relatively loose, which cannot form an effective overall reinforcement. In particular, the shield is prone to loosening after repeated insertion and removal.

[0007] The guiding structure of existing connectors is mostly a single-direction guide groove, which is prone to deflection during the insertion process, increasing the risk of uneven force on the terminals and indirectly affecting the reliability of terminal fixation.

[0008] Therefore, there is an urgent need for a right-angle PCMCIA male connector with a robust structure, reliable terminal fixation, high guiding accuracy, and the ability to effectively enhance the bonding strength between the shield and the fixed structure, so as to improve overall mechanical reliability and service life. Summary of the Invention

[0009] This invention provides a right-angle PCMCIA male connector to solve the problems of insufficient terminal fixing strength, loose connection between shielding and fixing structure, and low guiding accuracy in the prior art.

[0010] The right-angle PCMCIA male connector of the present invention includes an insulating body, multiple rows of terminals mating within the insulating body, and a metal shield for shielding. A guide block is provided on the insulating body, and multiple through guide grooves are formed on the guide block. The guide grooves include guide grooves extending along a first direction and guide grooves extending along a second direction, with the guide grooves in the first direction perpendicular to the guide grooves in the second direction. This achieves multi-directional guidance during insertion, improving insertion accuracy.

[0011] The multi-row terminals include a first right-angle terminal, a second right-angle terminal located around the first right-angle terminal, and a third right-angle terminal located around the second right-angle terminal. The third right-angle terminal includes a terminal connecting part and a connecting locking plate. Multiple terminal connecting parts are connected to the same connecting locking plate to achieve overall fixation of the third right-angle terminal.

[0012] Preferably, the third right-angle terminal is provided with a mechanical connection terminal, which includes multiple terminal connection portions. These terminal connection portions are non-electrical connection terminals, used to provide additional mechanical support without participating in signal transmission. The mechanical connection terminal may also include a terminal connector retainer, which is electrically connected to the metal shield and connected to ground, thereby enhancing grounding and shielding performance while strengthening mechanical fixation.

[0013] The electrical connection part of the metal shield is a thin metal sheet structure, which can ensure good conductivity and facilitate reliable connection with mechanical fixed terminals. In addition, each terminal is provided with a three-section retaining bar inside the insulation body. The retaining bar penetrates the entire plastic hole section of the insulation body along the insertion direction of the terminal, so as to significantly enhance the holding force and positioning accuracy of the terminal inside the insulation body and effectively avoid loosening and displacement problems during long-term use.

[0014] Compared with existing technologies, this invention introduces multi-layer right-angle terminal structure, multi-directional guide groove design, mechanically fixed terminals and connecting locking plates, three-section spurs and other technical solutions, which not only improves the bonding strength and alignment accuracy between the terminals and the insulation body, but also enhances the overall stability of the shielding and fixing structure, thereby improving the mechanical reliability and service life of the connector. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the right-angle PCMCIA male connector of the present invention.

[0016] Figure 2 This is an exploded view of the right-angle PCMCIA male connector of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the multi-row terminals in the right-angle PCMCIA male connector of the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of the third right-angle terminal in the right-angle PCMCIA male connector of the present invention. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0020] like Figure 1 As shown, this invention relates to a right-angle PCMCIA male connector, belonging to the field of electronic connector technology, and is mainly used to realize signal transmission and mechanical fixing connection under the PCMCIA standard interface. This connector is suitable for electronic products such as laptops, industrial control equipment, and communication terminals, and is used to achieve reliable docking with PCMCIA peripherals (such as memory cards, network expansion cards, modem cards, etc.).

[0021] Reference Figure 1 and Figure 2 Overall, the right-angle PCMCIA male connector of the present invention includes an insulating body 100, multiple rows of terminals 200, and a metal shield 300. The right-angle terminal arrangement enables vertical or horizontal connection of the circuit board, effectively saving internal space of the whole machine. The insulating body 100 is provided with a guide block 102 and a horizontal or vertical guide groove 103, which can accurately guide the external clips during insertion and removal, avoiding misalignment.

[0022] like Figure 3 and Figure 4 As shown, the multi-row terminal 200 is divided into a first right-angle terminal 201, a second right-angle terminal 202 and a third right-angle terminal 203. The third right-angle terminal 203 includes multiple terminal connection parts 204 and an integrally formed connection locking plate 205, which can be used for electrical connection or mechanical fixation to improve the stability of the terminal in the connector.

[0023] Furthermore, the insulating body is as follows: Figure 1 and Figure 2 As shown, the insulating body 100 is an integrally molded insulating structural component, preferably made of engineering plastics with high heat resistance and good flame retardant properties (such as LCP, PBT, etc.). The insulating body 100 has a strip-shaped structure, with positioning ears 101 at both ends for fixed engagement with external support components or housings. The outer side of the positioning ears may be provided with through holes or snap-fit ​​structures to achieve a stable connection with the external structure.

[0024] Furthermore, the insulating body 100 includes a first module 110 and a second module 120. The first module is used to provide a fixing structure for the terminal in the vertical direction, and the second module is used to provide fixing for the terminal in the vertical direction. The first module and the second module are fixed together by snap-fitting, splicing, buckling, or other means.

[0025] A guide block 102 is provided in the middle of the upper surface of the insulating body 100. The guide block extends along the insertion and removal direction and has a plurality of through guide grooves 103 formed thereon, including a first guide groove 104 extending along a first direction and a second guide groove 105 extending along a second direction, and the two types of guide grooves are arranged perpendicular to each other. The first / second guide grooves 104 / 105 are used to accurately position and isolate the multi-row terminals 200, and provide guidance during the terminal insertion process to avoid the terminals from being skewed or misaligned during assembly and use.

[0026] The lower surface of the insulating body 100 is provided with shielding mounting grooves 109 on both sides. These mounting grooves are used for embedding and fixing the metal shielding 300 to ensure that the shielding and the terminal retainer 212 form a reliable electrical connection path.

[0027] Furthermore, the multi-row terminal 200 includes a first right-angle terminal 201, a second right-angle terminal 202, and a third right-angle terminal 203; the second right-angle terminal 202 is located around the first right-angle terminal 201, and the third right-angle terminal 203 is located around the second right-angle terminal 202.

[0028] Furthermore, the first right-angle terminal 201 is located in the innermost row inside the insulating body, and is bent into a right angle along its length direction, so that the contact end 2111 extends into the slot 105 to be inserted into the mating part, and the tail end 2112 passes through the bottom of the insulating body, passes through the slot 104 and extends to the welding area (not shown in the figure); the spiking 211 of the three right-angle terminals penetrates the corresponding holes and slots of the insulating body along the direction of insertion force to enhance the holding force and positional accuracy of the terminals.

[0029] Furthermore, the second right-angle terminal 202 is distributed in a frame shape around the first right-angle terminal 201, with equal spacing between adjacent terminals. Its contact portion 2021 is also bent at a right angle, and its tail end 2022 extends out of the bottom of the insulating body and surrounds the outer periphery of the first right-angle terminal 201, serving as protection and separation. The second right-angle terminal 202 is also provided with a multi-segment spiking structure to improve the fixing strength.

[0030] Furthermore, the third right-angle terminal 203 is located in the outermost row and is arranged around the second right-angle terminal 202. Its structure includes a terminal connection portion 204 extending along the insertion direction and a connecting locking plate 205 vertically connected to multiple terminal connection portions. The connecting locking plate 205 is an integrally stamped structure used for overall positioning and providing mechanical strength during installation. At least a portion of the third right-angle terminal 203 is a mechanical connection terminal 209, which does not undertake electrical transmission functions, but is only used to enhance the mechanical fixing performance of the connector and the printed circuit board, and can be grounded by conducting with the metal shield 300.

[0031] The connecting locking plate 205 has a sheet-like structure and is integrally stamped from conductive metal material. It is used to firmly connect the terminal connection parts 204 of multiple third right-angle terminals 203 into one piece to achieve overall positioning, mechanical reinforcement and electrical function.

[0032] The connecting locking plate 205 has a raised locking part 206 in the middle. The locking part extends along the terminal insertion direction and is partially raised outward or stamped to cooperate with the corresponding groove of the insulating body 100 or the locking hole of the metal shield 300 during assembly, thereby preventing the terminal assembly from loosening or axial displacement during use.

[0033] The lower edge of the connecting locking plate 205 is machined with multiple pin connection slots 207 to ensure terminal stability.

[0034] In addition, the two sides of the connecting locking plate 205 can be machined with guide chamfers or positioning notches 208 as needed to enable quick alignment during assembly, reduce assembly resistance, and ensure reliable grounding connection with the metal shield 300 and the PCB.

[0035] The structural design of the connecting locking plate 205 not only improves the mechanical strength and positional accuracy of the third right-angle terminal 203, but also allows it to be used as a grounding terminal to conduct electricity with the metal shield 300, thus also providing electrical shielding.

[0036] Furthermore, the third right-angle terminal 203 includes a mechanical connection terminal 209, which is integrally stamped and bent from conductive metal material and is mainly used to provide structural fixation and grounding connection functions, without participating in signal or power transmission.

[0037] The mechanical connection terminal 209 includes a plurality of terminal connection portions 204. The front end of these terminal connection portions 204 forms a soldering pin 210 for insertion into a printed circuit board (PCB), and is provided with a three-section snap structure 211. The snaps penetrate through the hole in the insulating body 100 along the terminal insertion direction to increase the holding force of the terminal in the insulating body and ensure the stable alignment of the terminal during use.

[0038] Since the terminal connection portion 204 is a non-electrical connection terminal, its main function is to achieve mechanical reinforcement and grounding by soldering to the metal pads of the printed circuit board or by direct contact with the metal shielding component 300, without affecting signal integrity. Through this design, the third right-angle terminal 203 can improve the overall mechanical strength of the connector, as well as improve the electromagnetic shielding effect and anti-interference performance.

[0039] The mechanical connection terminal 209 is further connected to ground through the metal shield 300, which not only mechanically enhances the bonding strength between the third right-angle terminal 203 and the metal shield 300, but also effectively improves the electromagnetic shielding performance of the entire connector through the grounding path, reducing the impact of external electromagnetic interference on the data signal.

[0040] Through the above design, the mechanical connection terminal 209 provides both an additional structural fixing point and a stable grounding connection, ensuring the structural reliability and signal stability of the connector during long-term use.

[0041] Furthermore, the electrical connection portion 301 of the metal shield 300 is an integrally stamped metal sheet structure, which is plate-shaped and relatively thin, making it easy to achieve elastic deformation during connector assembly, thereby reliably engaging with the locking tab 2123 on the terminal connector retainer 212.

[0042] The two sides of the metal shield 300 extend longitudinally to form multi-level spring tabs 302 and mounting plates 303. After assembly, the tabs contact each other with the terminal connector retainer 212 of the mechanical connection terminal 209 to form a stable electrical connection path, while enhancing the positioning and fixing effect of the shield in the insulating body 100.

[0043] Furthermore, when the metal shielding component 300 is assembled with the insulating body 100, the mounting plate 303 and the protruding teeth 302 are respectively installed into the mounting groove 109.

[0044] The thin metal sheet structure of metal shielding reduces material usage while ensuring good electrical conductivity, thus lowering the overall weight of the shielding. Furthermore, it effectively suppresses external electromagnetic interference and improves signal integrity in high-speed signal transmission environments.

[0045] The mechanical connection terminal 209 also includes a terminal connector retainer 212, which is electrically connected to the metal shield 300 and connected to ground. The connector retainer 212 has an overall "H"-shaped structure, consisting of two parallel insertion arms 2131 and a fixing plate 2122 at their ends. The connector retainer is also installed within the mounting groove 109 and the positioning ear 101.

[0046] The outer edge of the insertion arm is provided with multi-level barbed teeth. When the terminal connector retainer 212 is assembled into the insulating body 100, the teeth elastically engage with the groove wall of the insulating body 100, thereby achieving a firm mechanical fixation and preventing the terminal from loosening or falling off during use.

[0047] Optionally, the metal shielding component and the connector retainer 212 can be fixed using electromechanical methods well known to those skilled in the art, such as interference fit or welding, which will not be elaborated here. The transverse fixing plate of the terminal connector retainer 212 is in direct contact with the electrical connection part 301 of the metal shield 300, and a stable electrical connection is achieved by elastic pressing of the metal sheet; when the device is installed as a whole, the metal shield 300 is connected to the ground through a grounding structure, thereby completing the grounding and electromagnetic shielding functions while mechanically fixing.

[0048] Each terminal, in its insertion portion into the insulating body 100, sequentially forms a three-section locking structure 211 along the terminal insertion direction. The three-section locking structure includes: The first section of the 2111 is located at the front end of the terminal and has an outwardly flared tooth shape. It mainly serves as a preliminary guide and positioner, so that the terminal can smoothly enter the plastic hole section of the insulating body 100 during the assembly process. The second section of the 2112 spur is located in the middle section of the terminal. It has a deeper tooth shape and its outer diameter is slightly larger than the inner diameter of the plastic hole section. During assembly, it forms a forced interference fit with the plastic hole wall, thereby generating a stable retaining force. The third section, 2113, is located near the tail of the terminal. It has shallow teeth but sharp edges and is used to form a secondary lock after the plastic material rebounds, preventing the terminal from loosening or shifting due to vibration, impact, or thermal expansion and contraction.

[0049] The three-section snap structure 211 penetrates the entire plastic hole section of the insulating body 100 along the terminal insertion direction, which can not only ensure the correct position of the terminal in the insulating body and avoid the pin offset affecting the electrical contact quality, but also significantly improve the mechanical holding force between the terminal and the insulating body 100 and extend the service life of the connector.

[0050] In summary, the right-angle PCMCIA male connector of this invention achieves an organic combination of high-speed signal transmission, mechanical fixation, and electromagnetic shielding functions by rationally arranging the first right-angle terminal, the second right-angle terminal, and the third right-angle terminal (including a mechanical connection terminal) within the insulating body. The multi-row terminals combined with the three-section locking structure not only significantly improve the holding force and alignment of the terminals within the insulating body but also effectively prevent loosening and displacement caused by vibration, impact, or thermal stress during prolonged use. The electrical connection design between the terminal connector retainer and the metal shield in the third right-angle terminal allows the connector to provide structural reinforcement while simultaneously completing grounding and shielding pathways, ensuring the integrity and anti-interference capability of high-speed signal transmission. The metal shield adopts a thin metal sheet structure with multi-level spring teeth, resulting in high assembly precision and excellent conductivity, effectively suppressing external electromagnetic interference. The overall structure is compact and easy to assemble, making it particularly suitable for space-constrained electronic equipment, exhibiting good versatility and reliability.

Claims

1. A right-angle PCMCIA male connector, comprising an insulating body, multiple rows of terminals mating within the insulating body, and a metal shielding member for shielding, characterized in that: The insulating body is provided with a guide block, and the guide block is provided with a plurality of through guide grooves. The guide grooves include guide grooves extending along a first direction and guide grooves extending along a second direction, wherein the guide grooves in the first direction are perpendicular to the guide grooves in the second direction. The multi-row terminals include a first right-angle terminal, a second right-angle terminal, and a third right-angle terminal; the second right-angle terminal is located around the first right-angle terminal, and the third right-angle terminal is located around the second right-angle terminal; The third right-angle terminal includes a terminal connecting part and a connecting locking plate, and multiple terminal connecting parts are connected to the same connecting locking plate.

2. The right-angle PCMCIA male connector according to claim 1, characterized in that: The third right-angle terminal includes a mechanical connection terminal, which includes multiple terminal connection portions, and the terminal connection portions are non-electrical connection terminals.

3. The right-angle PCMCIA male connector according to claim 2, characterized in that: The mechanical connection terminal also includes a terminal connector retainer, which is electrically connected to the metal shield and connected to ground.

4. The right-angle PCMCIA male connector according to claim 3, characterized in that: The electrical connection portion of the metal shield is a thin metal sheet structure.

5. The right-angle PCMCIA male connector according to claim 4, characterized in that: Each terminal has a three-section retaining bar inside the insulation body, and the retaining bar penetrates the through hole that accommodates the terminal along the insertion direction of the terminal.

6. The right-angle PCMCIA male connector according to claim 1, characterized in that: The insulating body is made of an engineering plastic with heat resistance and flame retardancy, wherein the engineering plastic is LCP or PBT.

7. The right-angle PCMCIA male connector according to claim 1, characterized in that: The connecting locking plate has a raised locking part in the middle. The raised locking part extends along the terminal insertion direction and protrudes outward to cooperate with the corresponding groove of the insulating body or the locking hole of the metal shield for positioning.

8. The right-angle PCMCIA male connector according to claim 3, characterized in that: The terminal connector retainer has an "H" shaped structure, including two parallel insertion arms and a fixing plate at the end. The outer edge of the insertion arm is provided with multi-level barbed teeth for elastic engagement with the groove wall of the insulating body.

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