Electric connector

Abstract

An electric connector comprises an insulation body, a terminal module contained in the insulation body and a shielding shell wrapping the insulation body. The terminal module comprises an elastic structure combined with a terminal base and two supporting pieces clamped on the two sides of the elastic structure, and the supporting pieces can prevent the elastic structure from being excessively deformed in the plugging and unplugging process so as not to affect the holding force between the electric connector and the butting connector. Two sides of the insulation body are concavely provided with two buckling grooves, two sides of the terminal seat are provided with two buckling pieces which are buckled with the buckling grooves, two sides of the shielding shell are convexly provided with two clamping hooks, and the clamping hooks are aligned with the buckling grooves and are combined with the buckling pieces to limit displacement of the terminal module. Therefore, the overall bonding strength of the electric connector can be improved, and the signal transmission stability can be improved.

Description

Technical Field

[0001] The utility model relates to an electrical connector, and in particular to an electrical connector capable of improving signal transmission stability. Background Art

[0002] With the development of electronic technology, electrical connectors are widely used in electronic devices such as audio, mobile phones and notebook computers. The purpose of mutual transmission of power or signals is achieved by plugging a docking connector of an electronic peripheral device into an electrical connector on the electronic device.

[0003] Taiwan's new patent No. M610903 discloses an electrical connector, comprising an insulating body, a terminal group fixed inside the insulating body, and a grounding plate fixed at the rear end of the insulating body. The terminal group comprises a base, a plurality of terminals fixed on the base, and an elastic snap-fit ​​arm, the two ends of the elastic snap-fit ​​arm respectively extending toward the two sides of the insulating body to form an elastic arm on each side of the terminal. When a docking connector is plugged into the electrical connector, the elastic arm abuts against the two sides of the docking connector to provide a holding force for the electrical connector during plugging and unplugging. However, the rigidity of the elastic arm is relatively low, so in the case of frequent plugging and unplugging, the elastic arm is prone to excessive deformation or even breakage and damage, thereby affecting the stability of signal transmission between the electrical connector and the docking connector.

[0004] In view of the above shortcomings, it is necessary to provide an electrical connector that can improve the stability of signal transmission. Summary of the invention

[0005] The purpose of the utility model is to provide an electrical connector, and more particularly to an electrical connector capable of improving signal transmission stability.

[0006] In order to overcome the deficiencies of the prior art, the utility model discloses an electrical connector, comprising a shielding shell. An insulating body, the insulating body is accommodated in the shielding shell and is provided with an internal space that runs through the front and rear ends of the insulating body. A terminal seat, the terminal seat is arranged in the internal space and is provided with two support members extending forward from both sides of the terminal seat respectively. An elastic structure, the elastic structure includes a connecting portion combined with the terminal seat, and two elastic arms extending forward from both sides of the connecting portion, the two elastic arms are clamped between the two support members; and a plurality of conductive terminals, the conductive terminals are arranged in the terminal seat and are located between the two elastic arms. The two sides of the two support members are respectively clamped against the outer sides of the two elastic arms and the side walls of the internal space to support the elastic arms.

[0007] Furthermore, the insulating body includes two elastic arm grooves recessed from the two side walls of the internal space, the elastic arm grooves extend backward to the rear end of the insulating body, the support member is accommodated in the elastic arm grooves, and the elastic arm is accommodated in the elastic arm grooves and extends into the internal space.

[0008] Furthermore, the rear end surface of the terminal seat is recessed inwardly into a groove, two fixing holes extend from both sides of the groove, the fixing holes penetrate to the front end of the terminal seat, the connecting portion is accommodated in the groove, and the elastic arm is embedded in the fixing hole.

[0009] Furthermore, the insulating body includes a plurality of terminal grooves arranged side by side at the bottom of the internal space, the terminal grooves extend backward to the rear end of the insulating body, and the terminal seat is penetrated by a plurality of terminal holes aligned with the terminal grooves, the conductive terminals are embedded in the terminal holes and accommodated in the terminal grooves.

[0010] Furthermore, two buckle grooves are recessed inwardly on both sides of the insulating body, and two buckle members protrude outwardly on both sides of the terminal seat, and the buckle members are combined in the buckle grooves.

[0011] Furthermore, two hooks extend inwardly from both side edges of the shielding shell, and the hooks are aligned with the buckle grooves and buckled with the buckle member.

[0012] Furthermore, the shielding shell includes an annular plate covering the outer surface of the insulating body, a bottom plate extending from the rear edge of the annular plate and shielding the rear end of the terminal seat, and two grounding portions extending outward from both sides of the bottom plate, and a notch is defined between the bottom edge of the bottom plate and the two grounding portions, and the rear end of the conductive terminal passes through the notch to expose the insulating body.

[0013] Furthermore, each of the grounding portions is provided with an extension leg, and the extension leg is formed by bending backwards from two sides of the bottom plate, and the extension leg is in a U-shape with the notch facing upwards.

[0014] Furthermore, each of the grounding portions is provided with a wing portion, the wing portion extends outwardly and in parallel from two sides of the bottom plate, and a pin is protruding downward from the bottom end of the wing portion.

[0015] The utility model also discloses an electrical connector, comprising an insulating body, provided with an internal space that runs through the front and rear ends of the insulating body. A terminal seat, the terminal seat is arranged in the internal space, and is provided with two support members extending forward from the two sides of the terminal seat respectively, and the front end of the support member is narrowed to form a retreat portion. Two elastic arms are fixed on both sides of the terminal seat, the inner side surfaces of the two support members respectively abut against the outer side surfaces of the two elastic arms, and the outer side surfaces of the rear ends of the two support members respectively abut against the side walls of the internal space, and a distance is formed between the outer side surfaces of the retreat portion and the side walls of the internal space. And a plurality of conductive terminals, the conductive terminals are arranged on the terminal seat and located between the two elastic arms.

[0016] In summary, the utility model provides an electrical connector, comprising the insulating body, the terminal module accommodated inside the insulating body, and the shielding shell covering the insulating body. The terminal module comprises the terminal seat, the elastic structure combined with the terminal seat, and the two support members clamped against the outer side of the elastic structure and the inner side wall of the insulating body, the support members are used to support the elastic structure and can prevent the elastic structure from being excessively deformed during the plug-in and unplug process, thereby affecting the holding force between the electrical connector and the docking connector. The two sides of the insulating body are recessed with two snap grooves, the two sides of the terminal seat are provided with two snap members that snap into the snap grooves, and the two sides of the shielding shell protrude two hooks inward. The hooks are aligned with the snap grooves and are fixed with the snap members, thereby limiting the displacement of the terminal module, so that the overall bonding strength of the electrical connector can be improved, and the signal transmission stability between the electrical connector and the docking connector can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the electrical connector of the utility model.

[0018] Figure 2 It is an exploded view of the electrical connector of the utility model.

[0019] Figure 3 This is another exploded view of the electrical connector of the present invention.

[0020] Figure 4 It is an exploded view of the terminal module of the electrical connector of the present invention.

[0021] Figure 5 The utility model electric connector Figure 1 Cross-sectional view of line II in .

[0022] Figure 6 The utility model electric connector is Figure 5 Magnified view of part A in FIG.

[0023] Figure 7 It is a three-dimensional diagram of another embodiment of the electrical connector of the present invention.

[0024] Figure 8 The utility model electric connector Figure 7 Cross-sectional view along line II-II in FIG. DETAILED DESCRIPTION

[0025] In order to explain the technical content, structural features, achieved objectives and technical effects of the present invention in detail, embodiments are given below and described in detail with reference to the accompanying drawings.

[0026] See also Figure 1 The utility model discloses an electrical connector 100, which is arranged on a circuit board (not shown) for docking with a docking connector (not shown). The electrical connector 100 comprises an insulating body 1, a terminal module 2 fixed inside the insulating body 1, and a shielding shell 3 covering the outer surface of the insulating body 1.

[0027] See also Figure 2 and Figure 3 The insulating body 1 is configured as a hollow cylindrical structure, and the insulating body 1 includes an internal space 11 that runs through the front and rear ends of the insulating body 1, two elastic arm grooves 13 symmetrically arranged on the left and right inner walls of the internal space 11, and a plurality of terminal grooves 14 arranged side by side at the bottom of the internal space 11. The terminal groove 14 is arranged between the two elastic arm grooves 13, and both the terminal groove 14 and the elastic arm groove 13 extend backward to the rear end of the insulating body 1.

[0028] See also Figure 3 and Figure 4The terminal module 2 includes a terminal seat 21, an elastic structure 22 integrated with the terminal seat 21 by embedding injection, and a plurality of conductive terminals 23 embedded in the terminal seat 21. The terminal seat 21 is accommodated in the internal space 11, the elastic structure 22 is arranged in the elastic arm groove 13 and extends into the internal space 11, and the conductive terminals 23 are accommodated in the terminal groove 14 side by side. The terminal seat 21 includes a base 211, a plurality of terminal holes 212 arranged side by side in the base 211, and a coupling portion arranged to couple with the elastic structure 22. The base 211 is configured to be flat and has a cross-sectional shape corresponding to the internal space 11, and the terminal hole 212 passes through the front and rear surfaces of the base 211 and is aligned with the terminal groove 14. The combination portion includes a groove 215 disposed on the rear end surface of the terminal seat 21 and two fixing holes 216 extending from the left and right sides of the groove 215 to the front end of the base 211. The groove 215 is located above the terminal hole 212, and the fixing hole 216 extends forward to the front surface of the base 211. The elastic structure 22 includes a connecting portion 221 and two elastic arms 222 extending forward from the left and right side edges of the connecting portion 221 respectively. The connecting portion 221 is disposed in the groove 215, and the elastic arm 222 is embedded in the fixing hole 216 and accommodated in the elastic arm slot 13.

[0029] See also Figures 2 to 4When the terminal module 2 is assembled to the insulating body 1, the two elastic arms 222 are respectively accommodated in the elastic arm grooves 13 on the left and right sides of the internal space 11, and the front end of each elastic arm 222 is provided with a buckle section 222a with a convex surface facing the internal space 11. When the docking connector (not shown) is inserted into the internal space 11, the buckle section 222a abuts against the two sides of the docking connector (not shown) and causes the elastic arm 222 to generate elastic deformation, and the stress generated by the deformation of the elastic arm 222 is applied to the docking connector (not shown) through the buckle section 222a to form a retaining force between the electrical connector 100 and the docking connector (not shown). In order to avoid excessive stress concentration on the elastic arm 222 during the plugging and unplugging process, the left and right sides of the terminal seat 21 are respectively provided with support members 213 extending from the base 211 to the front end, and the support member 213 is set to be a wedge-shaped with a narrow front end and a wide rear end and extends into the elastic arm slot 13. The outer surface of the front end of the support member 213 forms an inclined surface that tilts from the back to the front and from the outside to the inside, so that the front end of the support member 213 forms a retreat portion 213a, and a gap is formed between the outer side surface of the retreat portion 213a and the side wall of the internal space 11. The two inner side surfaces of the two support members 213 are respectively against the outer sides of the two elastic arms 222, and the outer surfaces of the rear ends of the two support members 213 are respectively against the groove walls of the two elastic arm slots 13 to support the elastic arms 222. The support member 213 configured as a wedge further makes the support force applied to the front end of the elastic arm 222 smaller than the support force applied to the rear end of the elastic arm 222, thereby making the deformation of the elastic arm 222 more gentle and preventing the elastic arm 222 from being excessively deformed and damaged during plugging and unplugging, so as to improve the signal transmission stability between the electrical connector 100 and the docking connector (not shown). When the elastic arm 222 is elastically deformed and deflected outward, the rear end of the support member 213 is used to fix the elastic arm 222, and the retreat portion 213a at the front end of the support member 213 deflects toward the slot wall of the elastic arm slot 13 along with the elastic arm 222. In this way, the spacing between the retreat portion 213a and the internal space 11 can provide the elastic arm 222 with an appropriate deflection amount and can provide the elastic arm 222 with an appropriate support force.

[0030] See also Figure 4 and Figure 5Each of the conductive terminals 23 includes a fixing portion 231, a contact portion 232 extending from the front end of the fixing portion 231 by bending, and a soldering portion 233 extending horizontally backward from the rear end of the fixing portion 231. The fixing portion 231 is embedded in the terminal hole 212 and received in the terminal slot 14, thereby maintaining the coplanarity of the conductive terminal 23, the contact portion 232 extends into the internal space 11 to be electrically connected with the docking connector (not shown), and the soldering portion 233 is exposed at the rear end of the shielding shell 3 and soldered to the circuit board (not shown).

[0031] See also Figure 2 The shielding shell 3 is a hollow annular shell and is formed by stamping and bending a metal plate. The shielding shell 3 includes an annular plate 31, which surrounds a receiving space to accommodate the insulating body 1. The top surface of the annular plate 31 extends an elastic tenon 311 toward the receiving space, and the top surface of the insulating body 1 is concavely provided with a tenon groove 16 to be fastened with the elastic tenon 311. A bottom plate 32 is bent vertically downward from the rear side edge of the annular plate 31, and the bottom plate 32 is shielded at the rear end of the terminal seat 21 to achieve the function of shielding electromagnetic interference. The shielding shell 3 includes two grounding parts 33 extending from the left and right sides of the bottom plate 32 respectively, and the grounding part 33 is welded on the circuit board (not shown) to ground the external electromagnetic interference signal. A notch 34 is defined between the bottom edge of the bottom plate 32 and the two grounding parts 33, and the welding part 233 can be exposed to the insulating body 1 through the notch 34.

[0032] See also Figure 1 and Figure 5 In a preferred embodiment shown in the figure, each grounding portion 33 is provided with an extension leg 33a, which is in a U-shape with an upward notch and is formed by bending the left and right sides of the bottom plate 32 toward the rear end, and the bottom edge of the extension leg 33a is placed flat on the circuit board (not shown) to ensure that the electrical connector 100 and the circuit board (not shown) are coplanar, and is conducive to improving the soldering yield of the conductive terminal 2. Please refer to Figure 7 and Figure 8 In another embodiment shown in the figure, each of the grounding portions 33 is provided with a wing portion 33b and a pin 33c protruding downward from the bottom end of the wing portion 33b, the pin 33c is welded on the circuit board (not shown), and the wing portions 33b extend outward in parallel from the left and right sides of the bottom plate 32 respectively, so as to simplify the stamping process of the grounding portion 33.

[0033] See also Figure 5 and Figure 6In order to enhance the fixing force between the insulating body 1, the terminal module 2 and the shielding shell 3, two buckle grooves 15 are provided at the rear end of the insulating body 1, and the buckle grooves 15 respectively cut through the left and right sides of the insulating body 1. The terminal seat 21 includes two buckle members 214 protruding outward from the left and right sides of the base 211, and the buckle members 214 are combined in the buckle grooves 15. In a preferred embodiment of the accompanying drawings, the shielding shell 3 includes two hooks 35 extending from the left and right sides of the annular plate 31 toward the receiving space, and the hooks 35 are aligned with the buckle grooves 15 and hooked on the rear end of the buckle members 214, thereby limiting the displacement of the terminal module 2, thereby improving the overall stability of the electrical connector 100. In a specific implementation, the annular plate 31 and the bottom plate 32 can be fixed to the outer surface of the insulating body 1 and the connecting portion 221 of the elastic structure 22 by laser spot welding to increase the bonding strength between the insulating body 1 and the shielding shell 3 .

[0034] In summary, the utility model discloses an electrical connector 100, comprising the insulating body 1, the terminal module 2 accommodated in the insulating body 1, and the shielding shell 3 covering the insulating body 1. The terminal module 2 comprises the elastic structure 22 combined with the terminal seat 21 and the two supporting members 213 extending on both sides of the terminal seat 21, the elastic structure 22 is pressed against both sides of the docking connector (not shown) to enhance the retention force, and the two sides of the supporting member 213 are respectively clamped against the outer side of the elastic structure 22 and the inner side wall of the insulating body 1 to support the elastic structure 22, thereby preventing the elastic structure 22 from being excessively deformed and damaged during the plugging and unplugging process, and enhancing the signal transmission stability between the electrical connector 100 and the docking connector (not shown). The insulating body 1 is provided with the snap groove 15 on both sides, the terminal seat 21 is provided with the snap parts 214 snapped into the snap groove 15 on both sides, and the shielding shell 3 is further able to extend the hook 35 on both sides. The hook 35 is aligned with the snap groove 15 and combined with the snap part 214 to prevent the terminal module 2 from being displaced, thereby improving the overall bonding strength of the electrical connector 100.

Claims

1. An electrical connector, characterized in that: It comprises: a shielding shell; an insulating body, which is accommodated in the shielding shell and is provided with an internal space that runs through the front and rear ends of the insulating body; a terminal seat, which is arranged in the internal space and is provided with two support members extending forward from both sides of the terminal seat respectively; an elastic structure, which comprises a connecting part combined with the terminal seat, and two elastic arms extending forward from both sides of the connecting part, and the two elastic arms are clamped between the two support members; and a plurality of conductive terminals, which are arranged on the terminal seat and located between the two elastic arms; wherein the two sides of the two support members are respectively clamped against the outer sides of the two elastic arms and the side walls of the internal space to support the elastic arms.

2. The electrical connector according to claim 1, characterized in that: The insulating body includes two elastic arm grooves recessed from the two side walls of the internal space, the elastic arm grooves extend backward to the rear end of the insulating body, the support member is accommodated in the elastic arm grooves, and the elastic arm is accommodated in the elastic arm grooves and extends into the internal space.

3. The electrical connector according to claim 1, wherein: The rear end surface of the terminal seat is inwardly recessed into a groove, and two fixing holes extend from both sides of the groove. The fixing holes penetrate to the front end of the terminal seat, and the connecting part is accommodated in the groove, and the elastic arm is embedded in the fixing hole.

4. The electrical connector according to claim 1, wherein: The insulating body includes a plurality of terminal slots arranged side by side at the bottom of the internal space, the terminal slots extend backward to the rear end of the insulating body, and the terminal seat is penetrated by a plurality of terminal holes aligned with the terminal slots, the conductive terminals are embedded in the terminal holes and accommodated in the terminal slots.

5. The electrical connector according to claim 1, characterized in that: Two buckle grooves are inwardly concavely arranged on two sides of the insulating body, and two buckle members are outwardly protruded on two sides of the terminal seat, and the buckle members are combined in the buckle grooves.

6. The electrical connector according to claim 5, characterized in that: Two hooks extend inwardly from both side edges of the shielding shell, and the hooks are aligned with the buckle grooves and buckled with the buckle member.

7. The electrical connector according to claim 1, characterized in that: The shielding shell includes an annular plate covering the outer surface of the insulating body, a bottom plate extending from the rear edge of the annular plate and shielding the rear end of the terminal seat, and two grounding parts extending outward from both sides of the bottom plate, and a notch is defined between the bottom edge of the bottom plate and the two grounding parts, and the rear end of the conductive terminal passes through the notch to expose the insulating body.

8. The electrical connector according to claim 7, characterized in that: Each of the grounding parts is provided with an extension leg, and the extension leg is formed by bending backwards from two sides of the bottom plate, and the extension leg is in a U shape with a notch facing upwards.

9. The electrical connector according to claim 7, characterized in that: Each of the grounding parts is provided with a wing part, and the wing part extends outwards in parallel from two sides of the bottom plate, and a pin is protruded downwards at the bottom end of the wing part.

10. An electrical connector, characterized in that: It comprises: an insulating body, provided with an internal space running through the front and rear ends of the insulating body; a terminal seat, the terminal seat is arranged in the internal space and provided with two support members extending forward from the two sides of the terminal seat respectively, and the front ends of the support members are narrowed to form a retreat portion; two elastic arms fixed on the two sides of the terminal seat, the inner sides of the two support members respectively abut against the outer sides of the two elastic arms, and the outer sides of the rear ends of the two support members respectively abut against the side walls of the internal space, and a distance is formed between the outer sides of the retreat portion and the side walls of the internal space; and a plurality of conductive terminals, the conductive terminals are arranged on the terminal seat and located between the two elastic arms.

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