Internal connection type electric connector

Abstract

The utility model relates to an internal connection type electric connector, which comprises an insulation body, conductive terminals assembled in the insulation body and an outer iron shell wrapping the insulation body, the front end of the insulation body is recessed inwards to form a plug-in groove, two opposite inner side walls of the plug-in groove are respectively provided with a step glue position, and the step glue positions are provided with terminal holes penetrating to the bottom end; the contact parts of the conductive terminals extend to the step glue positions and are exposed from the inner side surfaces of the step glue positions, so that the contact parts on the left and right step glue positions form matching clamping grooves; the outer iron shell is provided with a fixing foot extending from the bottom end of the insulating body, and a first hanging arm and a second hanging arm which are bent inwards from the front end of the insulating body into the inserting groove; the first hanging arm is bent to the upper part of the step glue position and is provided with an elastic part arched inwards; and the second hanging arm is distributed on the end head side of the matching clamping groove and forms an anti-tripping buckle. The connector is scientific and reasonable in structure and stable and reliable in installation and use, multi-layer plugging is formed in the plugging groove, and the use performance and stability of the connector are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to an internal electrical connector used inside a server or computer host and connected to the motherboard. Background Technology

[0002] Internal connectors are used to connect the internal circuitry of electronic devices, specifically for connecting circuit boards and electronic components. Traditional internal connectors consist of an insulating body and conductive terminals housed within the insulating body. During use, the installation relies on the insulating body's snap-fit ​​mechanism and the conductive terminals' soldering to the circuit board. Due to miniaturization, the strength of the connection points has decreased, making them prone to loosening and damage. Later, some internal connectors added an outer metal shell to enclose the insulating body, with fixing feet extending from the outer shell to connect to the circuit board, increasing installation strength. However, existing outer shells mainly use a wraparound sleeve design to enclose the insulating body, and the snap-fit ​​force and strength still need improvement. Therefore, designing superior internal connectors to improve performance and lifespan has become a focus of industry attention. Summary of the Invention

[0003] The purpose of this utility model is to provide an internal electrical connector to improve the structural performance of the product, so as to obtain better usability, installation strength and life.

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

[0005] An internal electrical connector is installed inside a server or computer host and connects to the motherboard, facilitating motherboard expansion connections. The internal connector includes an insulating body, conductive terminals assembled within the insulating body, and an outer metal shell enclosing the insulating body. The insulating body has a bottom end and a front end that mates with a mating connector, with the front end facing away from the bottom end. The front end has a recessed insertion groove, and stepped adhesive positions are provided on two opposite inner sidewalls of the insertion groove. Terminal holes extending to the bottom end are provided on the stepped adhesive positions. The conductive terminals have contact portions, solder portions, and fixing portions connecting the two. The conductive terminals are inserted into the corresponding terminal holes and positioned by the fixing portions engaging with the terminal holes. The contact portions extend to the stepped adhesive positions and protrude from the inner side of the stepped adhesive positions, forming mating grooves on the left and right stepped adhesive positions. The solder portions extend from the bottom end of the insulating body and are used to connect to the motherboard.

[0006] The outer iron shell has a fixed foot extending from the bottom of the insulating body and a first hanging arm and a second hanging arm that bend inward from the front end of the insulating body into the insertion groove. The first hanging arm bends above the stepped rubber position and has an inwardly arched elastic part. The second hanging arm is distributed on the end side of the mating clamp groove, and the second hanging arm has a first fastening part, which forms an anti-disengagement fastening with the inner side wall of the insertion groove.

[0007] The above solution is further provided with a first locking protrusion on the outer side of the insulating body. The first locking protrusion is used to fasten to a pre-set buckle hole on the outer iron shell, and the distribution position of the first locking protrusion forms an inner and outer relationship with the fastening position of the first fastening part of the second hanging arm.

[0008] A further aspect of the above scheme is that there are multiple first hanging arms, which are arranged at intervals along the corresponding inner sidewalls of the insertion slots.

[0009] The above solution is further described in that the first fastening part is a fastening hole, and a second locking protrusion is provided on the inner side wall of the insertion groove, and the first fastening part is fastened to the second locking protrusion.

[0010] The above solution is further provided with a first hooking limiting groove on the inner side wall of the insertion groove to match the first hooking arm, and the first hooking arm bends inward and sinks into the first hooking limiting groove.

[0011] The above solution is further provided with a second hooking limiting groove on the inner side wall of the insertion groove, which matches the second hooking arm. The second hooking arm is bent inward and inserted into the second hooking limiting groove, and the second locking protrusion is set in the second hooking limiting groove.

[0012] A further aspect of the above solution is that the conductive terminals are arranged in two rows, and the welding portions of the two rows of conductive terminals extend from the bottom end of the insulating body and bend in opposite directions, so that the welding portions are parallel to the bottom end of the insulating body, thereby enabling the welding portions to be attached to the motherboard.

[0013] A further aspect of the above scheme is that the conductive terminals are arranged in two rows, and the welding portions of the two rows of conductive terminals extend from the bottom end of the insulating body and form a clamping groove, thereby realizing the clamping of the motherboard by the welding portions.

[0014] The above solution is further provided that the bottom end of the insulating body is surrounded by fixing feet of the outer iron shell, and the fixing feet distributed in the direction of the extension of the welding part have a bending avoidance section, which bends outward from the outer iron shell.

[0015] A further aspect of the above scheme is that the corresponding side of the bottom end of the insulating body is provided with fixing feet of the outer iron shell, and the fixing feet are located at both ends of the welding part arrangement direction.

[0016] This utility model features a scientifically sound and reasonable structure with low investment costs. The outer iron shell has a first and a second hanging arm that bends inward from the front end of the insulating body into the insertion slot, increasing the number of connection points and strength. This allows the outer iron shell to better lock the insulating body in place, fully utilizing the fixing feet of the outer iron shell for secure installation. This enhances the structural strength of the connector, reducing the likelihood of loosening or damage during use and extending its service life. Furthermore, the mating clamp groove is constructed within the insertion slot and is relatively recessed, creating multiple insertion layers within the slot. Simultaneously, the first hanging arm bends above the stepped adhesive area and has an inwardly arched elastic portion. This elastic portion further increases the insertion and extraction force, improving the connector's performance and stability, resulting in greater practicality. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0018] Appendix Figure 2 for Figure 1 Another perspective structural diagram of the embodiment;

[0019] Appendix Figure 3 for Figure 1 Schematic diagram of the structural breakdown of the embodiment;

[0020] Appendix Figure 4 for Figure 1 Internal structural cross-sectional view of the embodiment;

[0021] Appendix Figure 5 This is a schematic diagram of the structure of a second embodiment of the present utility model;

[0022] Appendix Figure 6 for Figure 5 Schematic diagram of structural breakdown of the embodiment. Detailed Implementation

[0023] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.

[0024] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These terms are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] See Figure 1 , 2Figures 3, 4, 5, and 6 are schematic diagrams of a preferred embodiment of this utility model. This utility model relates to an internal electrical connector, which is installed inside a server or computer host and connected to the motherboard, facilitating motherboard expansion connections, especially facilitating motherboard expansion to external TYPE-C connectors.

[0026] The internal electrical connector includes an insulating body 1, conductive terminals 2 assembled within the insulating body, and an outer metal shell 3 enclosing the insulating body. The insulating body 1 is a block-shaped structure formed by injection molding, and the insulating body 1 has a bottom end 11 and a front end 12 that mates with the mating connector. The bottom end 11 and the front end 12 are opposite to each other. The front end 12 has a recessed insertion groove 13, and stepped adhesive positions 14 are respectively provided on the two opposite inner side walls of the insertion groove 13. The stepped adhesive positions 14 have a certain inward difference in height on the two inner side walls along the length direction of the insertion groove and relative to the end face of the front end 12, so that the insertion groove 13 has a layered insertion function. The stepped adhesive positions 14 have terminal holes 141 that extend to the bottom end 11. The terminal holes 141 are arranged according to design requirements and meet the process requirements of pin assembly. In this embodiment, the terminal holes 141 on each stepped adhesive position 14 are arranged in a row, and the terminal holes 141 on two stepped adhesive positions 14 are staggered in the arrangement direction. The conductive terminals 2 are arranged in two rows. Each conductive terminal 2 has a contact portion 21, a welding portion 22, and a fixing portion 23 connecting the two. The conductive terminals 2 are inserted and assembled into the terminal holes 141, and are positioned by the fixing portion 23 engaging with the terminal holes 141. The contact portion 21 extends to the stepped adhesive position 14 and protrudes from the inner side of the stepped adhesive position 14, for contact and conduction with externally inserted connectors. At the same time, the contact portions 21 on the left and right stepped adhesive positions 14 form mating grooves 15, which are adapted to double-sided clamping contact with externally inserted connectors. In this embodiment, the conductive terminals 2 adopt a pin-type structure, which is convenient for manufacturing and assembly, facilitates automated production, has a simple process, and has a relatively low manufacturing cost. In this embodiment, ten conductive terminals 2 are arranged on each stepped adhesive position 14. The contact portion 21 is in an arched shape and protrudes from the inner side of the stepped adhesive position 14 to meet the requirements of electrical contact transmission. The welding portion 22 extends from the bottom end 11 of the insulating body and is used to connect to the main board, facilitating the expansion connection of the main board.

[0027] The outer metal shell 3 has a fixing foot 31 extending from the bottom end 11 of the insulating body, and a first hanging arm 32 and a second hanging arm 33 bent inward from the front end 12 of the insulating body into the insertion groove 13. The fixing foot 31 is used to connect the motherboard or corresponding carrier, further improving the installation structure strength of the internal electrical connector, making it less prone to loosening or damage by external forces, and ensuring normal conduction. The first hanging arm 32 is bent above the stepped adhesive position 14 and has an inwardly arched elastic part 321. The first hanging arm 32 not only increases the connection between the outer metal shell 3 and the insulating body 1, but also, the elastic part 321 presses against the externally inserted connector in the insertion groove 13, increasing the insertion and extraction force and ensuring the stability and accuracy of the insertion.

[0028] In this embodiment, multiple first hanging arms 32 are arranged at intervals along the corresponding inner sidewalls of the insertion slot 13. This multi-point arrangement not only increases the connection surface between the outer iron shell 3 and the insulating body 1, but also provides multiple elastic parts 321 arranged sequentially, resulting in high insertion and extraction force and durability. Furthermore, a first hanging limiting groove 132 matching the first hanging arms 32 is provided on the inner sidewall of the insertion slot 13. The first hanging arms 32 bend inward and sink into the first hanging limiting groove 132, which serves to limit assembly and enhance connectivity. The first hanging limiting groove 132 is obtained by partially reducing the amount of adhesive used in the insulating body 1, forming a groove shape. This structure is simple, easy to manufacture, and reduces manufacturing costs.

[0029] The second hanging arm 33 is distributed on the end side of the mating clamping groove 15, and the second hanging arm 33 is provided with a first fastening part 331. The first fastening part 331 forms an anti-disengagement fastening with the inner side wall of the insertion groove 13, increasing the connection stability. In this embodiment, the outer side of the insulating body 1 is provided with a first locking protrusion 16. The first locking protrusion 16 is used to fasten the pre-set fastening hole 34 on the outer iron shell 3, and the distribution position of the first locking protrusion 16 and the fastening position of the first fastening part 331 of the second hanging arm 33 form an inner and outer relationship, forming an inner and outer fastening, increasing the connection tightness and holding force between the outer iron shell 3 and the insulating body 1. In this embodiment, the first fastening part 331 is a fastening hole, and a second locking protrusion 131 is provided on the inner side wall of the insertion groove 13. The first fastening part 331 and the second locking protrusion 131 are fastened together. The second locking protrusion 131 and the first locking protrusion 16 are designed as barbed adhesive positions, which are simple, sturdy and easy to manufacture and assemble. Figure 1 , 3As shown in Figures 4 and 6, in this embodiment, a second hooking limiting groove 133 matching the second hook arm 33 is provided on the inner sidewall of the insertion slot 13. The second hook arm 33 is bent inward and inserted into the second hooking limiting groove 133, and the second locking protrusion 131 is disposed in the second hooking limiting groove 133. The second hooking limiting groove 133 is obtained by partially reducing the adhesive of the insulating body 1, which facilitates the fitting and embedding of the second hook arm 33 after bending inward, without affecting the insertion operation of the insertion slot 13. Moreover, the second hooking limiting groove 133 effectively restricts the second hook arm 33, improving the structural integrity and stability of the assembly connection.

[0030] Figures 1-4 As shown, in this embodiment, the welding portions 22 of the conductive terminals are arranged in two rows. These two rows of welding portions 22 extend from the bottom end 11 of the insulating body and bend in opposite directions, making the welding portions 22 parallel to the bottom end 11 of the insulating body. This allows the welding portions 22 to be attached to the motherboard, facilitating the welding connection between the welding portions 22 and the motherboard, achieving automated assembly, reducing the need for opening holes on the motherboard, ensuring the structural integrity and service life of the motherboard, and also benefiting motherboard manufacturing. At this time, fixing feet 31 of the outer iron shell 3 are distributed around the bottom end 11 of the insulating body, and the fixing feet 31 distributed in the direction of the extension of the welding portions 22 have bending avoidance sections 311, which are bent outward from the outer iron shell 3. This design of the fixing feet 31 of the outer iron shell allows for multi-directional alignment and assembly, facilitating board welding, increasing mounting points, improving the strength and performance of the connector mounting structure, and ensuring stable and reliable assembly.

[0031] Figure 5 , 6 As shown, in this embodiment, the welding portions 22 of the conductive terminals are arranged in two rows. These two rows of welding portions 22 extend from the bottom end 11 of the insulating body and form a clamping groove, thereby enabling the welding portions 22 to clamp the motherboard, facilitating welding connection with the motherboard, suitable for horizontal installation, reducing the need for motherboard openings, ensuring the structural integrity and service life of the motherboard, and also facilitating motherboard manufacturing. At this time, the corresponding sides of the bottom end 11 of the insulating body are distributed with fixing feet 31 of the outer iron shell 3, and the fixing feet 31 are located at both ends of the arrangement direction of the welding portions 22. There are two fixing feet 31 on the same side and they are spaced apart, which facilitates the insertion and assembly of the motherboard. The distribution of the fixing feet 31 matches the arrangement of the welding portions 22, which helps to increase the strength of the clamping plate and improve the strength and performance of the connector installation structure.

[0032] This utility model features a scientifically sound and reasonable structure with low investment costs. The outer iron shell has a first and a second hanging arm that bends inward from the front end of the insulating body into the insertion slot, increasing the number of connection points and strength. This allows the outer iron shell to better lock the insulating body in place, fully utilizing the fixing feet of the outer iron shell for secure installation. This enhances the structural strength of the connector, reducing the likelihood of loosening or damage during use and extending its service life. Furthermore, the mating clamp groove is constructed within the insertion slot and is relatively recessed, creating multiple insertion layers within the slot. Simultaneously, the first hanging arm bends above the stepped adhesive area and has an inwardly arched elastic portion. This elastic portion further increases the insertion and extraction force, improving the connector's performance and stability, resulting in greater practicality.

[0033] 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. An internal electrical connector, disposed inside a server or computer host and connected to the motherboard, facilitating motherboard expansion connections, characterized in that: The internal electrical connector includes an insulating body (1), conductive terminals (2) assembled inside the insulating body, and an outer iron shell (3) enclosing the insulating body. The insulating body has a bottom end (11) and a front end (12) that mates with the mating connector. The front end (12) has a recessed insertion groove (13), and stepped adhesive positions (14) are respectively provided on the two opposite inner sidewalls of the insertion groove (13). The stepped adhesive positions (14) have terminal holes (141) that extend to the bottom end (11). The conductive terminals (2) have contact portions (2... 1) The welding part (22) and the fixing part (23) connecting the two are assembled with the conductive terminal (2) corresponding to the terminal hole (141) and the fixing part (23) and the terminal hole (141) being snapped and positioned. The contact part (21) extends to the stepped adhesive position (14) and protrudes from the inner side of the stepped adhesive position (14), so that the contact parts (21) on the left and right stepped adhesive positions (14) form a mating clamping groove (15). The welding part (22) extends from the bottom end (11) of the insulating body and is used to connect the main board. The outer iron shell (3) has a fixed foot (31) extending from the bottom end (11) of the insulating body and a first hanging arm (32) and a second hanging arm (33) bending inward from the front end (12) of the insulating body into the insertion groove (13). The first hanging arm (32) bends above the stepped rubber position (14) and is provided with an inwardly arched elastic part (321). The second hanging arm (33) is distributed on the end side of the mating clamp groove (15), and the second hanging arm (33) is provided with a first fastening part (331), which forms an anti-disengagement fastening with the inner side wall of the insertion groove (13).

2. The internal electrical connector according to claim 1, characterized in that: The outer side of the insulating body (1) is provided with a first locking protrusion (16), which is used to fasten the pre-set buckle hole (34) on the outer iron shell (3), and the distribution position of the first locking protrusion (16) forms an inner and outer relationship with the fastening position of the first fastening part (331) of the second hanging arm (33).

3. The internal electrical connector according to claim 1, characterized in that: The first hanging arm (32) has multiple arms and is arranged at intervals along the corresponding inner sidewall of the insertion slot (13).

4. An internal electrical connector according to claim 1, characterized in that: The first fastening part (331) is a fastening hole, and a second locking protrusion (131) is provided on the inner side wall of the insertion groove (13). The first fastening part (331) is fastened to the second locking protrusion (131).

5. An internal electrical connector according to claim 3, characterized in that: A first hook-and-hold groove (132) matching the first hook arm (32) is provided on the inner side wall of the plug groove (13). The first hook arm (32) bends inward and sinks into the first hook-and-hold groove (132).

6. An internal electrical connector according to claim 4, characterized in that: A second hooking limiting groove (133) matching the second hook arm (33) is provided on the inner side wall of the plug groove (13). The second hook arm (33) bends inward and sinks into the second hooking limiting groove (133). The second locking protrusion (131) is set in the second hooking limiting groove (133).

7. An internal electrical connector according to claim 1, characterized in that: The conductive terminals (2) are arranged in two rows. The welding parts (22) of the two rows of conductive terminals extend from the bottom end (11) of the insulating body and bend in opposite directions, so that the welding parts (22) are parallel to the bottom end (11) of the insulating body, thereby allowing the welding parts (22) to be attached to the motherboard.

8. An internal electrical connector according to claim 1, characterized in that: The conductive terminals (2) are arranged in two rows. The welding part (22) of the two rows of conductive terminals extends from the bottom end (11) of the insulating body and forms a clamping groove, thereby realizing that the welding part (22) clamps the main board.

9. An internal electrical connector according to claim 7, characterized in that: The bottom end (11) of the insulating body is surrounded by fixing feet (31) of the outer iron shell (3), and the fixing feet (31) distributed in the extension direction of the welding part (22) have bending avoidance sections (311), which are bent outward from the outer iron shell (3).

10. An internal electrical connector according to claim 8, characterized in that: The bottom end (11) of the insulating body has corresponding sides of the outer iron shell (3) with fixing feet (31) distributed thereon, and the fixing feet (31) are located at both ends of the arrangement direction of the welded part (22).

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