Conductive terminal and electric connector

Abstract

The utility model provides a conductive terminal and an electric connector, which comprise a holding part, a contact part formed by extending from one end of the holding part and a pin part formed by extending from the other end of the holding part, the conductive terminal is further provided with a non-contact area which is not in contact with the butt joint terminal and outside the contact area, the non-contact area is waxed, the surface of the non-waxed contact area is electroplated to form a precious metal plating layer, and the non-contact area with the waxed surface is not electroplated with the precious metal plating layer. According to the conductive terminal, the non-contact area is waxed, so that precious metal is prevented from being electroplated on the non-contact area during the electroplating process, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of electrically conductive terminal and electric connector, and is especially related to a kind of electrically conductive terminal and electric connector reducing noble metal waste.

BACKGROUND

[0002] To improve the wear resistance and corrosion resistance of the terminal, the contact area of the electrically conductive terminal in the electric connector needs to be plated with noble metal for mating with the mating terminal. When the electrically conductive terminal is plated by immersion plating, the non-contact area of the electrically conductive terminal will also be plated with noble metal, resulting in waste of noble metal.

[0003] Therefore, it is necessary to provide a new electrically conductive terminal to overcome the above-mentioned defects.

UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of electrically conductive terminal and electric connector reducing noble metal waste.

[0005] The utility model realizes the purpose by the following technical scheme: an electrically conductive terminal includes a holding portion, a contact portion extending from one end of the holding portion, and a pin portion extending from the other end of the holding portion. The contact portion has a contact area for mating with a mating terminal. The electrically conductive terminal also has a non-contact area outside the contact area that does not contact the mating terminal. The non-contact area is waxed, and the surface of the contact area that is not waxed is plated with a noble metal coating. The non-contact area that is waxed is not plated with the noble metal coating.

[0006] Further, the noble metal coating includes a platinum coating and a palladium-nickel coating.

[0007] Further, after the contact portion of the electrically conductive terminal is plated, the liquid level of the plating solution forms a liquid level floating area on the surface of the non-contact area of the electrically conductive terminal. The electrically conductive terminal is waxed at least on the surface of the liquid level floating area.

[0008] The utility model also realizes the purpose by the following technical scheme: an electric connector includes an insulating body, two rows of electrically conductive terminals received in the insulating body, and a tongue plate portion extending forward from the base portion. The electrically conductive terminal includes a holding portion held in the base portion, a contact portion extending forward from the holding portion and exposed to the tongue plate, and a pin portion extending out of the base portion from the holding portion. The contact portion has a contact area for mating with a mating terminal. The electrically conductive terminal also has a non-contact area outside the contact area that does not contact the mating terminal. The surface of the contact area is plated with a noble metal coating, and the non-contact area that is waxed is not plated with the noble metal coating.

[0009] Further, the contact portion is arranged in extension in the front-rear direction, and the holding portion has a connecting section connected to the contact portion and formed in extension in the front-rear direction, and a bent section deviated from the connecting section in a lateral direction perpendicular to the front-rear direction.

[0010] Further, the pin portion of the conductive terminal is formed in extension downwardly from a rear end of the bent section, and the contact portion, the connecting section and the bent section are arranged in coplanar.

[0011] Further, the conductive terminal is integrally formed by stamping and bending from a metal plate, and the plate thicknesses at different positions are consistent.

[0012] Further, the conductive terminal further has an embedding portion formed in extension inwardly from a front end of the contact portion away from the surface of the tongue plate, and the embedding portion is embedded in the tongue plate portion.

[0013] Further, the embedding portions of the conductive terminals in each row are connected by a tape, and the tape is externally provided with wax to be removed in the finished product.

[0014] Further, the contact portion, the part not in contact with the mating terminal, the holding portion, the pin portion, the embedding portion and the tape jointly form the non-contact area.

[0015] Compared with the prior art, the utility model has the advantages that in the manufacturing process of the electric connector, the conductive terminal is immersed in the electroplating liquid to realize electroplating of noble metal on the surface of the conductive terminal, and by waxing on the surface of the conductive terminal, the noble metal can be prevented from being electroplated on the non-contact area of the conductive terminal during electroplating, so that the waste of noble metal is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the electric connector of the utility model.

[0017] Figure 2 is a perspective view of the electric connector of the utility model after removing the metal shell.

[0018] Figure 3 is Figure 2 is a perspective view from another angle.

[0019] Figure 4 is Figure 1 is a sectional view along line A-A.

[0020] Figure 5 is a top view of the conductive terminals in the first row of the utility model connected by the tape, wherein the liquid surface floating area and the contact area of the conductive terminals in the first row are in the dashed line frame, and the contact area is provided with a noble metal plating layer.

[0021] Figure 6The second row of conductive terminals is connected through a material belt, and the liquid surface floating area and the contact area of the second row of conductive terminals are in the dashed box.

[0022] The following detailed description will further illustrate the utility model in combination with the above drawings.

Specific embodiments

[0023] The following will be combined Figures 1 to 6 The electric connector 100 of the utility model is illustrated.

[0024] Please refer to Figures 1 to 3 The electric connector 100 includes an insulating body 1 and two rows of conductive terminals 2 holding the insulating body 1. The two rows of conductive terminals 2 include a first row of conductive terminals 21 and a second row of conductive terminals 22 arranged in the up-down direction. The insulating body 1 includes a base 11 and a tongue plate part 12 formed by extending forward from the base 11 and used for mating with a mating connector (not shown). The conductive terminals 2 include a holding part 23 held in the base 11, a contact part 24 formed by extending forward from one end of the holding part 23 and exposed on the surface of the tongue plate part 12, and a pin part 25 extended backward from the other end of the holding part 23 and out of the base 11. The contact part 24 of the first row of conductive terminals 21 is exposed on the upper surface of the tongue plate part 12, and the contact part 24 of the second row of conductive terminals 22 is exposed on the lower surface of the tongue plate part 12. The electric connector 100 further includes a shell 3 covering the insulating body 1. The shell 3 is provided with a cylindrical part 32 forming a mating cavity 31 with the tongue plate part 12 and a cover part 33 formed by extending backward from the cylindrical part 32 and covering the base 11.

[0025] Please combine Figure 4 and Figure 6As shown, the conductive terminal 2 further comprises an embedded portion 26 formed by bending inwardly from a front end of the contact portion 24 away from the mating surface, which is embedded in the tongue plate portion 12. Before cutting the material strip, a front end of the embedded portion 26 of the first row of conductive terminals 21 is provided with a first material strip 27, and a front end of the embedded portion 26 of the second row of conductive terminals 22 is provided with a second material strip 28. The mating connector (not shown) has mating terminals (not shown) that mate with the conductive terminals 2. The contact portion 24 extends in the front-rear direction and comprises a contact area 200 that mates with the mating terminals (not shown). The portion of the contact portion 24 that does not contact the mating terminals (not shown), the retaining portion 23, the leg portion 25, the embedded portion 26, the first material strip 27, and the second material strip 28 collectively form a non-contact area 201. Further, the retaining portion 23 comprises a connecting segment 231 that extends in the front-rear direction and is connected to the contact portion 24, and a bending segment 232 that deviates from the connecting segment 231 in a lateral direction perpendicular to the front-rear direction. The leg portion 25 of the conductive terminal 2 is formed by bending downwardly from a rear end of the bending segment 232, and the contact portion 24, the connecting segment 231, and the bending segment 232 are disposed in the same plane. The conductive terminal 2 is formed by stamping and bending from a metal plate, and the plate thickness of the conductive terminal 2 is uniform, i.e., the dimension in the up-down direction is equal everywhere. Since the contact area 200 of the contact portion 24 needs to abut against the mating terminals (not shown), the contact area 200 needs to be plated with a different noble metal plating layer from the non-contact area 201, i.e., a noble metal plating layer containing platinum plating and palladium-nickel plating, to improve the corrosion resistance of the contact area 200. In other embodiments, the noble metal plating layer can also vary the types of noble metals contained therein according to different required properties of the contact area 200.

[0026] To reduce the waste of precious metal in the electroplating process, the conductive terminal 2 is added with a waxing process before electroplating. Specifically, two rows of the conductive terminal 2 are respectively electroplated. When the contact area 200 is electroplated, the first row of the conductive terminal 21 needs to sequentially immerse the first tape 27 and the contact part 24 into the electroplating solution. However, the liquid surface of the electroplating solution is floating, which forms a liquid surface floating area A on the surface near the joint between the contact part 24 and the holding part 23. The liquid surface floating area A causes the conductive terminal 2 to be electroplated with unnecessary precious metal on the non-contact area 201 of the holding part 23 and the contact part 24 outside the contact area 200, resulting in the waste of precious metal. By waxing the liquid surface floating area A of the conductive terminal 2, even if the liquid surface of the electroplating solution floats to the non-contact area 201, the wax can prevent the electroplating solution from contacting the non-contact area 201, thereby avoiding the non-contact area 201 from being electroplated with unnecessary precious metal. In addition, the first tape 27 and the second tape 28 are both cut off in the finished product, and the precious metal plating layer also does not need to be electroplated. Therefore, the first tape 27, the second tape 28, the embedded part 26, and the non-contact area 201 of the contact part 24 are all coated with wax. The contact area 200 without waxing can be completely immersed in the electroplating solution to ensure the accuracy of the electroplating position. The surface of the non-contact area 201 will not be electroplated with the precious metal plating layer due to the presence of wax. Of course, the waxed area can also be changed according to different electroplated parts. After electroplating is completed, the wax on the conductive terminal 2 is removed by warm water immersion and the like. The finally manufactured electrical connector 100 does not have the wax in the above-mentioned electroplating process.

[0027] The second row of the conductive terminal 22 is electroplated with the precious metal plating layer in the same way as the first row of the conductive terminal 21.

[0028] The above only describes some embodiments of the present application, not all embodiments. Any equivalent changes made by those skilled in the art through reading the description of the present application to the technical solutions of the present application are all covered by the claims of the present application.

Claims

1. An electrically conductive terminal comprising a holding portion, a contact portion extending from one end of the holding portion, and a pin portion extending from the other end of the holding portion, characterized in that: The contact part has a contact area for contacting a pair of connecting terminals, the conductive terminal also has a non-contact area outside the contact area, the non-contact area is waxed, the surface of the contact area which is not waxed is plated with a noble metal plating layer, and the surface of the non-contact area which is waxed is not plated with the noble metal plating layer.

2. The electrically conductive terminal of claim 1, wherein: The noble metal plating layer includes a platinum plating layer and a palladium-nickel plating layer.

3. The electrically conductive terminal of claim 1, wherein: After the contact part of the conductive terminal is completed plating, a liquid surface of a plating solution forms a liquid surface floating area on the surface of the non-contact area of the conductive terminal, and the conductive terminal is waxed at least on the surface of the liquid surface floating area.

4. An electrical connector comprising an insulative housing, two rows of conductive terminals received in the insulative housing, the insulative housing comprising a base portion and a tongue portion extending forwardly from the base portion, the conductive terminals comprising a retention portion retained in the base portion, a contact portion extending forwardly from the retention portion and exposed at the tongue portion, and a tail portion extending rearwardly from the retention portion out of the base portion, characterized in that: The contact part has a contact area for contacting a pair of connecting terminals, the conductive terminal also has a non-contact area outside the contact area, the non-contact area is waxed, the surface of the contact area which is not waxed is plated with a noble metal plating layer, and the surface of the non-contact area which is waxed is not plated with the noble metal plating layer.

5. The electrical connector of claim 4, wherein: The contact part is arranged to extend in the front-rear direction, and the holding part has a connecting section connected to the contact part and formed to extend in the front-rear direction, and a bending section deviated from the connecting section in a lateral direction perpendicular to the front-rear direction.

6. The electrical connector of claim 5, wherein: The pin part of the conductive terminal is formed to extend downward from a rear end of the bending section, and the contact part, the connecting section and the bending section are arranged to be coplanar.

7. The electrical connector of claim 4, wherein: The conductive terminal is integrally punched and bent from a metal plate, and the plate thicknesses of different parts are consistent.

8. The electrical connector of claim 4, wherein: The conductive terminal also has an embedding part formed to extend inward from a front end of the contact part and away from the surface of the tongue plate, and the embedding part is embedded in the tongue plate part.

9. The electrical connector of claim 8, wherein: The embedding parts of the conductive terminals in each row are connected by a tape, and the tape is provided with wax which will be removed in the finished product.

10. The electrical connector of claim 9, wherein: The part of the contact part which does not contact the connecting terminals, the holding part, the pin part, the embedding part and the tape collectively form the non-contact area. The contact part has a contact area for contacting a pair of connecting terminals, the conductive terminal also has a non-contact area outside the contact area, the non-contact area is waxed, the surface of the contact area which is not waxed is plated with a noble metal plating layer, and the surface of the non-contact area which is waxed is not plated with the noble metal plating layer.

Images