Electrical connector

Abstract

The utility model provides a kind of electric connector, it includes insulating body, several conductive terminals and the retaining member assembled to the insulating body, each conductive terminal includes main part and tail, the tail includes welding section, the conductive terminal includes main part and is located upper, lower side upper row conductive terminal and lower row conductive terminal respectively, the welding section of the conductive terminal is arranged in a row along transverse direction, the retaining member has base, several columns and shielding wall extending downward from the base, two adjacent columns are spaced apart to form through slot, the shielding wall is located the rear side of the column and is spaced apart from the column in front and back direction to form receiving groove, a part of the tail of the upper, lower row conductive terminal is housed in the through slot, another part of the tail of the upper row conductive terminal is housed and limited in the receiving groove.The utility model electric connector can reduce size and ensure the stability of conductive terminal and insulating body combination.

Description

Technical Field

[0001] This utility model relates to an electrical connector. Background Technology

[0002] Traditional electrical connectors consist of an insulating body and conductive terminals fixed within the insulating body. When the conductive terminals are arranged in two rows, their soldered sections are usually staggered, which increases the front-to-back space occupied by the connector on the circuit board. At the same time, the conductive terminals are generally fixed to the insulating body by interference parts. However, when the connector is plugged in, transported, or exposed to vibration for a long time, such as in automotive applications, the bonding strength between the conductive terminals and the insulating body will be compromised. The conductive terminals may wobble in multiple directions, resulting in poor electrical contact.

[0003] In view of this, it is necessary to improve the existing electrical connectors to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an electrical connector that can reduce size while effectively ensuring the stability of the connection between the conductive terminals and the insulating body.

[0005] To achieve the above-mentioned utility model objectives, this utility model provides an electrical connector, which includes an insulating body, a plurality of conductive terminals fixed within the insulating body, and a retainer assembled within the insulating body. Each conductive terminal includes a main body portion housed within the insulating body and a tail portion exposed at the rear of the insulating body. The tail portion includes a soldering section for connecting to an external circuit board. The conductive terminals include an upper row of conductive terminals with the main body portion located on the upper side and a lower row of conductive terminals with the main body portion located on the lower side. The soldering sections of the conductive terminals are arranged in a row in the transverse direction. The retainer has a base, a plurality of pillars extending downward from the base, and a shielding wall. Two adjacent pillars are spaced apart to form a through groove. The shielding wall is located at the rear of the pillars and is spaced apart from the pillars in the front-rear direction to form a receiving groove. A portion of the tail portion of the upper and lower row of conductive terminals is housed in the through groove, and another portion of the tail portion of the upper row of conductive terminals is housed and confined in the receiving groove.

[0006] As a further improvement of this utility model, the retaining member also has a plurality of connecting walls that connect the shielding wall to the column, each of the connecting walls being located on one side of the corresponding receiving groove in the lateral direction.

[0007] As a further improvement of this utility model, the side of each of the receiving slots opposite to the connecting wall is connected to the through slot.

[0008] As a further improvement of this utility model, the tail portion further includes a first connecting segment connected to the main body portion and a second connecting segment connecting the first connecting segment and the welding segment. The first connecting segment extends in the front-back direction, and the second connecting segment extends entirely in the up-down direction.

[0009] As a further improvement of this utility model, the second connecting section of the upper row of conductive terminals includes a first vertical section and a second vertical section extending along the height direction, and a deflection section extending along the lateral direction. The deflection section connects the first vertical section and the second vertical section, and the deflection section is received and confined in the receiving groove.

[0010] As a further improvement of this utility model, the plurality of columns are arranged in a row in the transverse direction, and the shielding wall is a flat plate extending downward from the rear end of the base.

[0011] As a further improvement of this utility model, the shielding wall is located on the upper side of the second connecting section of the lower row of conductive terminals.

[0012] As a further improvement of this utility model, the lower end face of the shielding wall is located below the deflection section of the upper row of conductive terminals, so that the shielding wall completely blocks the deflection section from the rear side.

[0013] As a further improvement of this utility model, the retaining member also has a pair of latching arms disposed on both sides of the base in the lateral direction, each latching arm having a latching part protruding outward in the lateral direction, the retaining member being installed from top to bottom on the rear part of the insulating body and latching with the insulating body through the latching part.

[0014] As a further improvement of this utility model, the latching arm and the base are spaced apart in the lateral direction to form a notch, and the retaining member also has a connecting part that connects the latching arm and the base in the lateral direction. The connecting part is located on the front side of the notch and is adjacent to the notch. The notch is recessed upward from the bottom end of the latching arm and extends beyond the latching part.

[0015] The beneficial effects of this utility model are as follows: By arranging the welded sections of two rows of conductive terminals in a row in the transverse direction, the electrical connector of this utility model minimizes the size of the connector in the front-to-back direction, meeting the urgent need for miniaturization of modern electronic devices; at the same time, the retaining element achieves precise positioning, mechanical reinforcement and electrical insulation of the conductive terminals, ensuring the high reliability and stability of the electrical connector in long-term use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional assembly diagram of the electrical connector of this utility model.

[0017] Figure 2 yes Figure 1 Another view of the electrical connector shown.

[0018] Figure 3 yes Figure 1 An exploded perspective view of the electrical connector shown.

[0019] Figure 4 yes Figure 3 Another view of the electrical connector shown.

[0020] Figure 5 yes Figure 3 A perspective view of the retainer in the electrical connector shown.

[0021] Figure 6 yes Figure 5 The image shows another view of the retainer.

[0022] Figure 7 yes Figure 1 The electrical connector shown is a cross-sectional view. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 7 The present invention is shown as a preferred embodiment of the electrical connector 100. In this embodiment, the electrical connector 100 includes an insulating body 1, a plurality of conductive terminals 2 fixed in the insulating body 1, and a retaining member 3 assembled in the insulating body 1.

[0025] For ease of explanation, when describing the electrical connector 100 below, the mating direction of the electrical connector 100 will be regarded as the front-to-back direction, and the direction perpendicular to both the front-to-back direction and the longitudinal direction will be regarded as the height direction.

[0026] Please refer to Figures 1 to 5 As shown, the insulating body 1 has a plurality of terminal slots 11 formed through it in a front-to-back direction. In addition, in this utility model, the insulating body 1 is provided with a locking arm 12 at its top, the locking arm 12 is provided with at least one locking part 121 on its upper side, the locking arm 12 is elastic so that the free end at its rear end can move downward under the action of external force, thereby realizing the locking and unlocking with the mating connector (not shown).

[0027] In addition, the insulating body 1 is provided with a pair of limiting grooves 13 oppositely disposed on both sides in its longitudinal direction and protrusions 14 protruding in the limiting grooves 13. The pair of limiting grooves 13 are open to each other to lock and fix the two ends of the retaining member 3 in the longitudinal direction. In this embodiment, the pair of protrusions 14 are arranged to protrude towards each other.

[0028] Please refer to Figures 2 to 4 and Figure 7 As shown, in this invention, each conductive terminal 2 includes a main body 21 housed within the insulating body 1 and a tail 23 exposed on the rear side of the insulating body 1. The tail 23 includes a soldering section 231 for connecting to an external circuit board (not shown). The conductive terminal 2 includes an upper row of conductive terminals 2a with the main body 21 on the upper side and a lower row of conductive terminals 2b with the main body 21 on the lower side. The soldering sections 231 of the conductive terminal 2 are arranged in a row in the transverse direction.

[0029] In this way, by aligning the soldering segments 231 of the upper row of conductive terminals 2a with the soldering segments 231 of the lower row of conductive terminals 2b in the lateral direction, the width of the soldering area required for the entire electrical connector 100 in the front-to-back direction is minimized, thereby significantly reducing the size of the product in the front-to-back direction. At the same time, after arranging the soldering segments 231 of the two rows of conductive terminals 2 in a row, the pads on the circuit board are also in a straight line, which is conducive to high-density wiring on the circuit board, reduces the wiring crossing and winding difficulties caused by the intersection of the two rows of pads, and helps to improve signal integrity.

[0030] Specifically, the tail portion 23 further includes a first connecting segment 232 connected to the main body portion 21 and a second connecting segment 234 connecting the first connecting segment 232 and the welding segment 231. The first connecting segment 232 extends in the front-back direction, and the second connecting segment 234 extends in the up-down direction as a whole.

[0031] In this embodiment, the main body 21 of the upper and lower row conductive terminals 2a and 2b are aligned in the height direction, and the first connecting segment 232 of the upper and lower row conductive terminals 2a and 2b are also aligned in the height direction.

[0032] The second connecting segment 234 of the upper row of conductive terminals 2a includes a first vertical segment 2341 and a second vertical segment 2342 extending along the height direction, and a deflection segment 2343 extending along the lateral direction. The deflection segment 2343 connects the first vertical segment 2341 and the second vertical segment 2342.

[0033] Please refer to Figures 2 to 7As shown, the retainer 3 has a base 31, a plurality of pillars 32 extending downward from the base 31, and a shielding wall 34. Two adjacent pillars 32 are spaced apart to form a through groove 320. The shielding wall 34 is located on the rear side of the pillars 32 and is spaced apart from the pillars 32 in the front-rear direction to form a receiving groove 340. A portion of the tail 23 of the upper and lower row conductive terminals 2a and 2b is received in the through groove 320, and another portion of the tail 23 of the upper row conductive terminal 2a is received and confined in the receiving groove 340.

[0034] Thus, by receiving and limiting a portion of the tail 23 of the upper row of conductive terminals 2a through the receiving groove 340, this portion of the tail 23 is protected, greatly enhancing its fatigue resistance and ensuring that the upper row of conductive terminals 2a can withstand multiple insertion and removal cycles. The retaining member 3 then achieves precise positioning and fixation of the conductive terminals 2, preventing loosening / wobbling and avoiding movement of the soldering section 231 in the lateral and longitudinal directions. This ensures the reliability of the coplanar section of the soldering section 231 and its electrical connection with the circuit board, avoiding problems such as poor soldering and open solder joints. When the electrical connector 100 is in a vibrating environment for a long time, the retaining member 3 can prevent poor electrical contact between the conductive terminals 2 and the mating connector, while also absorbing some vibration, preventing the electrical connection between the conductive terminals 2 and the circuit board from loosening. When the mating connector is inserted, the force generated is transmitted to the conductive terminals 2. The retaining member 3 provides a solid support point for the tail 23 of the conductive terminals 2, effectively dispersing these stresses and preventing stress concentration from causing the conductive terminals 2 to loosen from the insulating body 1 or the tail 23 to deform, thereby effectively resisting insertion and removal stress.

[0035] The retainer 3 also has a plurality of connecting walls 35 that connect the shielding wall 34 to the column 32, each of the connecting walls 35 being located on one side of the corresponding receiving groove 340 in the lateral direction.

[0036] Thus, when the conductive terminal 2 is subjected to compression in the front-back direction or torsion in the lateral direction, the shielding wall 34 is prone to deformation or even breakage. By providing a connecting wall 35 that connects the column 32 and the shielding wall 34 in the front-back direction, it can not only resist torsion and bending, but also enhance the structural strength of the shielding wall 34, making the entire retaining member 3 a rigid whole, thereby effectively resisting various external forces, preventing permanent deformation, and ensuring the dimensional stability of the receiving groove 340. At the same time, due to the presence of the connecting wall 35, the conductive terminal can be confined within the receiving groove 340 in multiple directions, enhancing the wrapping and holding force of the conductive terminal 2.

[0037] Each of the receiving grooves 340 is connected to the through groove 320 on the side opposite to the connecting wall 35. The deflection segment 2343 of the upper row of conductive terminals 2a is received and confined in the receiving groove 340. In this application, through the three-section design of the second connecting segment 234, precise "spatial displacement" and stress management are achieved. The deflection segment 2343, where stress is easily concentrated, is placed in the receiving groove 340, thereby wrapping and restricting it in multiple directions, preventing it from moving or deforming freely. This greatly enhances the mechanical stress resistance and vibration resistance of the conductive terminal 2, ensuring the long-term mechanical reliability of the conductive terminal.

[0038] The plurality of columns 32 are arranged in a row in the transverse direction, and the shielding wall 34 is a flat plate extending downward from the rear end of the base 31.

[0039] In this way, the structural strength and stability of the retainer 3 are enhanced by the flat shielding wall 34, and a continuous insulating barrier can be formed more effectively behind the tail of the conductive terminal 2, so as to minimize the risk of foreign object intrusion or accidental short circuit and improve the electrical safety performance of the product.

[0040] The shielding wall 34 is located above the second connecting section 234 of the lower row of conductive terminals 2b. The lower end face of the shielding wall 34 is located below the deflection section 2343 of the upper row of conductive terminals 2a, so that the shielding wall 34 completely blocks the deflection section 2343 from the rear side.

[0041] The retaining member 3 also has a pair of latching arms 36 disposed on both sides of the base 31 in the lateral direction. Each latching arm 36 has a latching portion 361 protruding outward in the lateral direction. The retaining member 3 is installed from top to bottom on the rear part of the insulating body 1 and latches with the insulating body 1 through the latching portion 361. Specifically, the latching arm 36 is inserted into the limiting groove 13 and latches with the protrusion 14 disposed therein.

[0042] The latching arm 36 and the base 31 are spaced apart in the lateral direction to form a notch 360. The retainer 3 also has a connecting portion 37 that connects the latching arm 36 and the base 31 in the lateral direction. The connecting portion 37 is located on the front side of the notch 360 and is adjacent to the notch 360. The notch 360 is recessed upward from the bottom end of the latching arm 36 and extends beyond the latching portion 361.

[0043] In this utility model, the electrical connector 100 also has a pair of fixing members 4 disposed on both sides of the insulating body 1 in the longitudinal direction. The fixing members 4 are inserted into the insulating body 1 from top to bottom to install the electrical connector 100 on an external circuit board.

[0044] The electrical connector 100 of this utility model minimizes the size of the electrical connector 100 in the front-back direction by arranging the welding sections 231 of the two rows of conductive terminals 2 in a row in the lateral direction, thereby meeting the urgent need for miniaturization of modern electronic devices; the retaining member 3 achieves precise positioning, mechanical reinforcement and electrical insulation of the conductive terminals 2, ensuring the high reliability and stability of the electrical connector 100 during long-term use.

[0045] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0046] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. An electrical connector comprising an insulating body, a plurality of conductive terminals fixed within the insulating body, and a retainer assembled to the insulating body, each of the conductive terminals comprising a main body portion housed within the insulating body and a tail portion exposed at the rear of the insulating body, the tail portion comprising a soldering section for connection to an external circuit board, the conductive terminals comprising an upper row of conductive terminals with the main body portion located on the upper side and a lower row of conductive terminals with the main body portion located on the lower side, the soldering sections of the conductive terminals being arranged in a row in a transverse direction, characterized in that: The retainer has a base, a plurality of columns extending downward from the base, and a shielding wall. Two adjacent columns are spaced apart to form a through groove. The shielding wall is located behind the column and is spaced apart from the column in the front-rear direction to form a receiving groove. A portion of the tail of the upper and lower row of conductive terminals is received in the through groove, and another portion of the tail of the upper row of conductive terminals is received and confined in the receiving groove.

2. The electrical connector as described in claim 1, characterized in that: The retainer also has a plurality of connecting walls that connect the shielding wall to the column, each of the connecting walls being located on one side of the corresponding receiving groove in the lateral direction.

3. The electrical connector as described in claim 2, characterized in that: Each of the receiving slots is connected to the through slot on the side opposite to the connecting wall.

4. The electrical connector as described in claim 1, characterized in that: The tail portion also includes a first connecting segment connected to the main body and a second connecting segment connecting the first connecting segment and the welding segment. The first connecting segment extends in the front-to-back direction, and the second connecting segment extends in the up-down direction.

5. The electrical connector as described in claim 4, characterized in that: The second connecting section of the upper row of conductive terminals includes a first vertical section and a second vertical section extending along the height direction, and a deflection section extending along the lateral direction. The deflection section connects the first vertical section and the second vertical section, and the deflection section is accommodated and confined in the receiving groove.

6. The electrical connector as described in claim 5, characterized in that: The plurality of columns are arranged in a row in the transverse direction, and the shielding wall is a flat plate extending downward from the rear end of the base.

7. The electrical connector as claimed in claim 6, characterized in that: The shielding wall is located on the upper side of the second connecting section of the lower row of conductive terminals.

8. The electrical connector as claimed in claim 6, characterized in that: The lower end face of the shielding wall is located below the deflection section of the upper row of conductive terminals, so that the shielding wall completely blocks the deflection section from the rear side.

9. The electrical connector as claimed in claim 1, characterized in that: The retainer also has a pair of latching arms disposed on both sides of the base in the lateral direction, each latching arm having a latching portion protruding outward in the lateral direction, the retainer being mounted from top to bottom on the rear of the insulating body and latching with the insulating body through the latching portion.

10. The electrical connector as claimed in claim 9, characterized in that: The latching arm and the base are spaced apart in the lateral direction to form a notch. The retainer also has a connecting portion that connects the latching arm and the base in the lateral direction. The connecting portion is located in front of the notch and is adjacent to the notch. The notch is recessed upward from the bottom end of the latching arm and extends beyond the latching portion.

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