SMT template upper connector

Abstract

The utility model relates to an SMT template upper connector, an insulation main body is a flat structure body, the insulation main body is provided with a slot at the front end, a terminal hole at the rear end and two mounting parts, the two mounting parts respectively protrude from two ends of the insulation main body in the flat direction, and the mounting parts are provided with fixing buckles and positioning columns. The fixing buckles are used for being connected with buckle holes in a circuit board in a buckled mode, the positioning columns are inserted into positioning holes in the circuit board, and the outer diameters of the positioning columns on different surface mounting parts are different. A partition wall is arranged in the slot and connects the left side wall and the right side wall of the slot in the flat direction. The plurality of terminals are implanted into the insulating main body corresponding to the terminal holes, and the contact parts are exposed and are used for being in contact conduction connection with an external element inserted into the slot; the welding pins of the plurality of terminals are bent leftwards and rightwards in the flat direction of the insulating main body and extend out, and the lower bottom surfaces of the bent welding pins are flush with the attaching plane of the attaching part. The structure is optimized, the transmission requirement is met, and combination with the circuit board is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to connectors mounted on circuit boards. Background Technology

[0002] As electronic products demand ever-increasing transmission speeds, the requirements for connectors mounted on circuit boards are becoming more stringent. These requirements include stable mating, minimal crosstalk between terminals, and robust construction. Furthermore, for this type of connector, the installation tolerances between the connector and its surrounding components must be strictly designed during the integrated circuit board design process. This means that high tolerance requirements are imposed on the installation. For a manufactured integrated circuit board, any errors in the installation tolerances of the connector and its surrounding components are irreparable and will render the entire circuit board unusable. Summary of the Invention

[0003] The purpose of this invention is to provide a connector on an SMT board with an optimized structure that meets transmission requirements and is stable and reliable when integrated with the circuit board.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A connector on an SMT board, which has the following features:

[0006] An insulating body is a flat structure with a slot at the front end, a terminal hole at the rear end, and two mounting parts. The two mounting parts protrude from both ends of the insulating body along its flat direction. Each mounting part has a flat mating surface for mating with a circuit board. Each mounting part also has a retaining clip and a positioning post protruding from the mating surface. The retaining clip engages with a snap-fit ​​hole on the circuit board, and the positioning post inserts into a positioning hole on the circuit board. The slot is recessed at the front end of the insulating body and extends along its flat direction. A partition wall connects the left and right sidewalls of the slot in the flat direction. The terminal hole is recessed at the rear end of the insulating body and communicates with the slot. The terminal holes are arranged in two rows, spaced apart along the left and right sidewalls of the insulating body in the flat direction.

[0007] Several terminals are stamped and arranged in two symmetrical rows. The terminals are inserted into the insulating body through corresponding terminal holes, and the contact portions of the terminals extend to the left and right sidewalls of the slot in the flat direction and protrude inward. The contact portions are used to make contact and conduction connections with external components inserted into the slot. The terminals also have solder feet extending from the rear end of the insulating body. The solder feet of the two rows of terminals are bent and extended to the left and right in the flat direction of the insulating body, and the bottom surface of the bent solder feet is flush with the bonding plane of the mounting part. The solder feet are used to bond and solder to the circuit board.

[0008] The above solution is further described in that the fixing buckle connection line on the two mounting parts coincides with the center line in the flat direction of the insulating body; and the positioning posts on the two mounting parts are respectively located on the left and right sides of the connection line, and the outer diameters of the two positioning posts are different.

[0009] A further improvement in the above solution is that the fixing buckle has a symmetrical double-hook structure, which enables bidirectional elastic buckling after insertion into the buckle hole.

[0010] Furthermore, the two mounting parts are integrally formed with the insulating body, and the width of the two mounting parts and the insulating body is the same on the left and right sides in the flat direction.

[0011] A further improvement of the above scheme is that the rear end of the insulating body is provided with a shaping boss that aligns with the welding foot. The shaping boss supports the bent part of the welding foot, so that the welding foot extends straight out after bending.

[0012] The above solution is further described in that the contact portion of the terminal has an inwardly convex arc-shaped section for contact connection and an end support for hanging pre-pressed, the end support abutting against a pre-set mounting platform on the inner wall of the slot.

[0013] A further improvement of the above scheme is that the inner convex arc segment is provided with a centrally divided elongated hole, so that the inner convex arc segment forms a parallel double-arm structure.

[0014] By adopting the above structure, this utility model has the following beneficial effects:

[0015] 1. The insulating body is bonded to the circuit board through two mounting parts. The two mounting parts protrude from both ends of the insulating body in the flat direction to ensure that the two ends of the insulating body are installed stably. The two mounting parts are also equipped with fixing buckles and positioning posts protruding from the bonding plane. When they are used with the circuit board, they play a dual positioning and limiting role, which can effectively ensure the welding accuracy and provide good fixing strength, and ensure accurate installation.

[0016] 2. A partition wall is provided in the slot, which connects the left and right side walls of the slot in the flat direction. This effectively prevents / reduces electromagnetic interference between different signals, while enhancing the overall structural strength of the connector, enabling it to withstand certain external forces and vibrations, and improving the durability and reliability of the connector.

[0017] 3. The bottom surface of the terminal's soldering feet after bending is flush with the mounting surface, achieving multi-point connection on the same plane, increasing the connection strength and stability between the connector and the circuit board, effectively reducing the design requirements for connector installation tolerances on the circuit board, and improving the assembly efficiency of functional components on the circuit board. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0019] Appendix Figure 2 for Figure 1 Another perspective structural diagram of the embodiment;

[0020] Appendix Figure 3 for Figure 1 Schematic diagram of the structural breakdown of the embodiment;

[0021] Appendix Figure 4 for Figure 1 A partial structural cross-sectional view of the embodiment;

[0022] Appendix Figure 5 This is a schematic diagram of the circuit board structure of this utility model;

[0023] Appendix Figure 6 This is a schematic diagram showing the state of the connector and circuit board after assembly according to this utility model;

[0024] Appendix Figure 7 for Figure 6 Another perspective structural diagram;

[0025] Appendix Figure 8 for Figure 6 A top-view structural diagram;

[0026] Appendix Figure 9 for Figure 6 A cross-sectional view of the internal structure. Detailed Implementation

[0027] The following will further explain the concept, specific structure and technical effects of the utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the utility model.

[0028] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0029] See Figure 1 , 2 Figures 3, 4, 5, 6, 7, 8, and 9 are schematic diagrams of a preferred embodiment of the present invention. The present invention relates to a connector on an SMT board, which has: an insulating body 1 and several terminals 3.

[0030] The insulating body 1 is a flat structure, and has a front slot 11, a rear terminal hole 12, and two mounting parts 13. The two mounting parts 13 protrude from both ends of the insulating body 1 in the flat direction. The mounting parts 13 have a flat bonding surface 131, which is used to bond and connect with the circuit board 2. The two mounting parts 13 are also provided with a fixing buckle 132 and a positioning post 133 protruding from the bonding surface. In this embodiment, the fixing buckle 132 and the positioning post 133 are both perpendicular to the bonding surface. The fixing buckle 132 is used to fasten and connect with the buckle hole 21 on the circuit board 2 to achieve the effect of preventing detachment. The positioning post 133 is inserted into the positioning hole 22 on the circuit board 2 to provide positioning and increase the connection strength. The slot 11 is recessed from the front end of the insulating body 1 and extends along the flat direction of the insulating body 1. A partition wall 111 is provided in the slot 11, connecting the left and right sidewalls of the slot 11 in the flat direction. The partition wall 111 serves to isolate and increase structural strength. The terminal hole 12 is recessed from the rear end of the insulating body 1 and communicates with the slot 11. The terminal holes 12 are divided into two rows and arranged at intervals along the left and right sidewalls of the insulating body 1 in the flat direction. The plurality of terminals 3 are stamped and arranged in two symmetrical rows. The plurality of terminals 3 are inserted into the insulating body 1 corresponding to the terminal holes 12, and the contact portions 31 of the plurality of terminals 3 extend onto the left and right sidewalls of the slot 11 in the flat direction and protrude inwards. The contact portions 31 are used to make contact and conduction with components inserted into the slot 11. The plurality of terminals 3 also have solder feet 32 ​​extending from the rear end of the insulating body 1. The solder feet 32 ​​of the two rows of terminals are bent and extended to the left and right in the flat direction of the insulating body, and the bottom surface of the solder feet 32 ​​after bending is flush with the bonding plane 131 of the mounting part 13. The solder feet 32 ​​are used to bond and solder to the circuit board 2 to realize the electrical conduction connection between the connector and the circuit board.

[0031] In this embodiment, the connecting line of the fixing buckles 132 on the two mounting parts 13 coincides with the center line in the flat direction of the insulating body 1, and the positioning posts 133 on the two mounting parts 13 are respectively located on the left and right sides of the connecting line, and the outer diameters of the two positioning posts 133 are different, which has a foolproof function. Through the structural design of the fixing buckles 132 and the positioning posts 133, the assembly convenience, accuracy and stability of the connector are improved. Furthermore, the fixing buckles 132 are symmetrical double-hook structures, realizing bidirectional elastic buckling after insertion into the buckle hole 21, increasing the holding force, and having good balance, making the connection firm and not easy to loosen. In this embodiment, the fixing buckles 132 utilize elasticity, which not only facilitates insertion and installation, but also has detachability, making maintenance convenient.

[0032] The two mounting parts 13 are integrally formed with the insulating body 1, and the width of the two mounting parts 13 and the insulating body 1 is the same on the left and right sides in the flat direction, which is conducive to manufacturing and also increases the stability of the insulating body 1 during installation.

[0033] The rear end of the insulating body 1 is provided with a shaping boss 14 that aligns with the welding foot 32. The shaping boss 14 supports the bent part of the welding foot 32, so that the welding foot 32 extends straight after bending, ensuring that the flatness of the welding foot 32 is consistent, which is conducive to welding on the upper plate and can effectively prevent welding defects.

[0034] The contact portion 31 of the terminal has an inwardly convex arc-shaped section 311 for contact connection and an end support 312 for pre-pressing. The end support 312 abuts against a pre-set mounting platform 112 on the inner wall of the slot 11. This structure can effectively improve its own stability and contact stability, increase insertion and extraction force, and prevent loosening. Furthermore, the inwardly convex arc-shaped section 311 is provided with a centrally bisected elongated hole 313, so that the inwardly convex arc-shaped section 311 forms a parallel double-arm structure. The design of the elongated hole 313 can further improve the contact effect and insertion and extraction force of the contact portion 31.

[0035] Figure 5 , 6 As shown in Figures 7, 8, and 9, the circuit board 2 is pre-set with snap-fit ​​holes 21, positioning holes 22, and solder pads 23. The fixing buckle 132 is inserted into the snap-fit ​​hole 21 and is fastened using a reverse hook method to achieve the anti-detachment effect. The positioning post 133 is inserted into the positioning hole 22 to provide alignment and improve the accuracy and stability of installation. The soldering feet 32 ​​of the terminal are attached to the solder pads 23 for soldering connection to achieve electrical conduction connection.

[0036] Through testing and verification, this utility model has the following beneficial effects:

[0037] 1. The insulating body is bonded to the circuit board through two mounting parts. The two mounting parts protrude from both ends of the insulating body in the flat direction to ensure that the two ends of the insulating body are installed stably. The two mounting parts are also equipped with fixing buckles and positioning posts protruding from the bonding plane. When they are used with the circuit board, they play a dual positioning and limiting role, which can effectively ensure the welding accuracy and provide good fixing strength, and ensure accurate installation.

[0038] 2. A partition wall is provided in the slot, which connects the left and right side walls of the slot in the flat direction. This effectively prevents / reduces electromagnetic interference between different signals, while enhancing the overall structural strength of the connector, enabling it to withstand certain external forces and vibrations, and improving the durability and reliability of the connector.

[0039] 3. The bottom surface of the terminal's soldering feet after bending is flush with the mounting surface, achieving multi-point connection on the same plane, increasing the connection strength and stability between the connector and the circuit board, effectively reducing the design requirements for connector installation tolerances on the circuit board, and improving the assembly efficiency of functional components on the circuit board.

[0040] While the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention should not be limited to the same structure and operation as described above and the accompanying drawings. For those skilled in the art, many equivalent improvements and variations can be made to the above embodiments through logical analysis, reasoning or limited experiments without exceeding the concept and scope of the present invention, but these improvements and variations should all fall within the scope of protection claimed by the present invention.

Claims

1. A connector on an SMT board, characterized in that, have: An insulating body (1) is a flat structure with a slot (11) at the front end, a terminal hole (12) at the rear end, and two mounting parts (13). The two mounting parts (13) protrude from both ends of the insulating body (1) in the flat direction. Each mounting part (13) has a flat mating plane (131) for mating with the circuit board (2). The two mounting parts (13) are also provided with a fixing buckle (132) and a positioning post (133) protruding from the mating plane. The fixing buckle (132) is used to connect with the circuit board. The buckle hole (21) on the board (2) is fastened and connected, and the positioning post (133) is inserted into the positioning hole (22) on the circuit board (2); the slot (11) is recessed from the front end of the insulating body (1) and extends along the flat direction of the insulating body (1), and a partition wall (111) is provided in the slot (11), which connects the left and right side walls of the slot (11) in the flat direction; the terminal hole (12) is recessed from the rear end of the insulating body (1) and communicates with the slot (11), and the terminal hole (12) is divided into two rows and is arranged at intervals along the left and right side walls of the insulating body (1) in the flat direction respectively; Several terminals (3) are stamped and divided into two symmetrical rows. The terminals (3) are inserted into the insulating body (1) with corresponding terminal holes (12). The contact parts (31) of the terminals (3) extend to the left and right side walls of the slot (11) in the flat direction and protrude inward. The contact parts (31) are used to make contact and conduction connection with the components inserted into the slot (11). The terminals (3) also have solder feet (32) extending from the rear end of the insulating body (1). The solder feet (32) of the two rows of terminals are bent and extended to the left and right in the flat direction of the insulating body, and the bottom surface of the solder feet (32) after bending is flush with the bonding plane (131) of the mounting part (13). The solder feet (32) are used to bond and solder on the circuit board (2).

2. The SMT board connector according to claim 1, characterized in that, The line connecting the fixing buckles (132) on the two mounting parts (13) coincides with the center line in the flat direction of the insulating body (1); and the positioning posts (133) on the two mounting parts (13) are respectively located on the left and right sides of the connecting line, and the outer diameters of the two positioning posts (133) are different.

3. A connector on an SMT board according to claim 1 or 2, characterized in that, The fixed buckle (132) is a symmetrical double hook structure, which realizes bidirectional elastic buckling after being inserted into the buckle hole (21).

4. A connector on an SMT board according to claim 1, characterized in that, The two mounting parts (13) are integrally formed with the insulating body (1), and the width of the two mounting parts (13) and the insulating body (1) is the same on the left and right sides in the flat direction.

5. A connector for an SMT board according to claim 1, characterized in that, The rear end of the insulating body (1) is provided with a shaping boss (14) that is aligned with the welding foot (32). The shaping boss (14) supports the bent part of the welding foot (32) so that the welding foot (32) extends straight after bending.

6. A connector for an SMT board according to claim 1, characterized in that, The contact portion (31) of the terminal has an inwardly convex arc-shaped section (311) for contact connection and an end support (312) for hanging pre-pressed, which abuts against a pre-set mounting platform (112) on the inner wall of the slot (11).

7. A connector on an SMT board according to claim 6, characterized in that, The inner convex arc segment (311) is provided with a centrally divided elongated hole (313), so that the inner convex arc segment (311) forms a parallel double-arm structure.

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