Connector material belt combination

Abstract

The invention discloses a connector material belt combination, which comprises a shell material belt and a plurality of terminal material belt groups positioned on the shell material belt, and is characterized in that the shell material belt is provided with a plurality of metal shells which are uniformly distributed along the longitudinal direction and lower-layer material belts which are connected to two transverse ends of the metal shells; and the terminal material belt group is provided with a group of conductive terminals and upper-layer material belts connected to the two transverse ends of the conductive terminals. The plurality of terminal material belt groups are formed by cutting the terminal material belt, the center distance between every two adjacent groups of conductive terminals in the terminal material belt is smaller than the center distance between every two adjacent metal shells in the shell material belt, the conductive terminals are arranged corresponding to the metal shells, and the upper layer material belt is welded on the lower layer material belt. Before injection molding, the terminal material belt group is cut and formed from the terminal material belt and then is subjected to spot welding on the shell material belt, so that the center distance between the metal shell and the conductive terminal does not need to be kept consistent, the center distance of the terminal material belt is reduced, the stamping cost is reduced, and the electroplating efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of card socket connector production, and in particular to a connector strip combination with stable connection. Background Art

[0002] As the application fields of electrical connectors continue to expand, electrical connectors are also used in some occasions where high current needs to be transmitted to connect and disconnect electrical circuits, which has led to the emergence of high-current electrical connectors. The socket connector has become the most popular mainstream connector and is fully used in various electronic products, such as mobile phones, notebooks, tablets, etc., supporting higher power charging and power supply capabilities.

[0003] At present, in the traditional injection molding process of the card socket connector, the terminal must be cut off the protective feet and then stacked with the iron shell for injection molding. The time for cutting and stacking each plate of terminal strips with the iron shell is long, which has a great impact on the injection molding efficiency of the product. And because the iron shell and the terminal must be stacked together, the distance between the iron shell and the terminal must be consistent.

[0004] Therefore, it is hoped to provide a new connector strip combination to overcome the above-mentioned defects. Summary of the invention

[0005] The object of the present invention is to provide a connector strip assembly, which can reduce the stamping cost of the connector and improve the electroplating efficiency.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a connector material strip combination, including a longitudinal shell material strip and a plurality of terminal material strip groups located on the shell material strip, the shell material strip is provided with a plurality of metal shells evenly arranged in the longitudinal direction and a lower material strip connected to the lateral ends of the metal shell, the terminal material strip group is provided with a group of conductive terminals and an upper material strip connected to the lateral ends of the conductive terminals. Several terminal material strip groups are cut from a terminal material strip, the center distance between each adjacent two groups of conductive terminals in the terminal material strip is smaller than the center distance between each adjacent two metal shells in the shell material strip, and the conductive terminals are arranged corresponding to the metal shell, and the upper material strip is welded to the lower material strip.

[0007] In a preferred embodiment, each of the conductive terminals is provided with a retaining portion, a contact portion protruding upward from the retaining portion, and a welding portion extending upwardly from the retaining portion, and the contact portions of the plurality of conductive terminals are located at the same height.

[0008] In a preferred embodiment, the upper material strip is provided with two main material strips located on both lateral sides of the conductive terminal and a connecting material strip connected between the two main material strips, and the main material strip is connected to the retaining portion of the conductive terminal.

[0009] In a preferred embodiment, the welding portions in each group of the conductive terminals are located in the same plane, and the upper material strip is provided with a secondary material strip for connecting the welding portions together.

[0010] In a preferred embodiment, the terminal strip is provided with a stopper protruding upward, and the stopper is higher than the welding portion.

[0011] In a preferred embodiment, the metal shell is provided with a flat top wall, side walls extending upward from the sides of the top wall, and fixing legs bent inward from the top edges of the side walls, and the fixing legs and the welding portion are located in the same plane.

[0012] In a preferred embodiment, the retaining portion of the conductive terminal is located above the top wall of the metal housing, and the two are not in contact.

[0013] In a preferred embodiment, the lower layer of material strip is provided with a front material strip and a rear material strip located on both lateral sides of the metal shell and a side material strip connected between the front material strip and the rear material strip, and the front material strip and the rear material strip are respectively connected to the lateral ends of the top wall of the metal shell.

[0014] In a preferred embodiment, the side material strip on one longitudinal side of the metal shell is connected to the top wall, and the side material strip on the other longitudinal side of the metal shell is provided with a limiting portion protruding upward.

[0015] In a preferred embodiment, the upper material strip is provided with an upper positioning hole, the lower material strip is provided with a lower positioning hole, and when the terminal material strip group is placed on the shell material strip, the upper positioning hole is arranged corresponding to the lower positioning hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects: several terminal strip groups are cut from a terminal strip, the center distance between each two adjacent groups of conductive terminals in the terminal strip is smaller than the center distance between each two adjacent metal shells in the shell strip, and the conductive terminals are arranged corresponding to the metal shells, and the upper strip is welded to the lower strip. The connector strip combination adopts a process of cutting and molding the terminal strip group from the terminal strip before injection molding and then spot welding it to the shell strip, which can directly enter the injection molding section, thereby reducing the process of strip cutting and stringing, and improving the injection molding section efficiency of the product. At the same time, the above process can make it unnecessary to keep the center distance of the metal shell in the shell strip consistent with the center distance of the conductive terminal in the terminal strip, thereby reducing the center distance of the terminal strip, so as to reduce the stamping cost and improve the electroplating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the connector strip assembly in a preferred embodiment of the present invention.

[0018] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the terminal strip in the connector strip assembly is shown.

[0019] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the shell strip in the connector strip assembly is shown.

[0020] Figure 4 yes Figure 1 The three-dimensional schematic diagram of the metal shell and the conductive terminals in the connector strip assembly is shown. DETAILED DESCRIPTION

[0021] See also Figures 1 to 4 As shown, a preferred embodiment of the present invention discloses a connector strip assembly, which is placed in a molding cavity of an injection mold to injection mold a card socket connector. The connector strip assembly includes a longitudinal shell strip 200 and a plurality of terminal strip groups 110 located on the shell strip 200, and the plurality of terminal strip groups 110 are cut from a terminal strip 100.

[0022] See also Figure 2 As shown, the terminal strip 100 is provided with an array of conductive terminals 10 evenly arranged along the longitudinal direction and an upper strip 20 connected to the two lateral ends of the conductive terminals 10, that is, each of the terminal strip groups 110 is provided with a group of conductive terminals 10 and an upper strip 20 connected to the two lateral ends of the conductive terminals 10.

[0023] Combination Figure 4 As shown, each of the conductive terminals 10 is provided with a retaining portion 11, a contact portion 12 protruding upward from the retaining portion 11, and a soldering portion 13 extending upward from the retaining portion. The retaining portions 11 of each group of the conductive terminals 10 are located in the same plane, and the contact portions 12 of each group of the conductive terminals 10 are located at the same height, so that they can be used to contact the same electronic card. At the same time, the soldering portions 13 in each group of the conductive terminals 10 are located in the same plane and arranged in a row along the longitudinal direction, and then soldered to a circuit board.

[0024] The upper material strip 20 is provided with two main material strips 21 located on both sides of the conductive terminal 10 in the transverse direction and a connecting material strip 22 connected between the two main material strips 21. The main material strip 21 is connected to the holding portion 11 of the conductive terminal 10. Thus, when the terminal material strip set 110 is placed in the injection mold, the main material strip 21 can support the conductive terminal 10 in the molding cavity of the injection mold. At the same time, the upper material strip is provided with a secondary material strip 23 and a stopper 24. The secondary material strip 23 connects the welding portion 13 to ensure the coplanarity between the welding portions 13. The stopper 24 protrudes upward and is higher than the welding portion 13 to further limit the conductive terminal 10 to the molding cavity of the injection mold.

[0025] See also Figure 2 As shown, the shell material strip 200 is provided with a plurality of metal shells 30 evenly arranged in the longitudinal direction and a lower material strip 40 connected to both ends of the metal shells 30 in the lateral direction. Figure 4 As shown, the metal shell 30 is provided with a flat top wall 31, a side wall 32 extending upward from the side of the top wall 31, and a fixing leg 33 bent inward from the top edge of the side wall 32. The holding portion 11 of the conductive terminal 10 is located above the top wall 31 of the metal shell 30, and the two are not in contact to ensure that there is no short circuit between the two. The top wall 31 and the side wall 32 are surrounded to form a plug-in space, and the conductive terminal 10 is located in the plug-in space, and the plug-in space can be plugged with a corresponding electronic card. The fixing leg 33 and the welding portion 13 are located in the same plane and fixed to the above-mentioned circuit board.

[0026] The lower material strip 40 is provided with a front material strip 41 and a rear material strip 42 located on both lateral sides of the metal shell 30, and a side material strip 43 connected between the front material strip 41 and the rear material strip 42. The front material strip 41 is connected to the lateral front end of the top wall 31 of the metal shell 30, and the rear material strip 42 is connected to the lateral rear end of the top wall 31 of the metal shell 30. At the same time, the side material strip 43 on one longitudinal side of the metal shell 30 is connected to the top wall 31, and the side material strip 43 on the other side is provided with a limiting portion 44 protruding upward, and the limiting portion 44 is higher than the fixed foot 33 of the metal shell 30, so as to further limit the metal shell 30 to the molding cavity of the injection mold.

[0027] In this embodiment, the upper material strip 20 is provided with an upper positioning hole 201, and the lower material strip 40 is provided with a lower positioning hole 401. When the terminal material strip set 110 is placed on the shell material strip 200, the upper positioning hole 201 is arranged corresponding to the lower positioning hole 401, so that the conductive terminal 10 is arranged corresponding to the metal shell 30; at the same time, the upper material strip 20 is welded to the lower material strip 40 by spot welding.

[0028] The connector strip assembly adopts a process of cutting and molding the terminal strip group 110 from the terminal strip 100 before injection molding and then spot welding it to the shell strip 200, which can directly enter the injection molding stage, thereby reducing the process of strip cutting and stringing, and improving the injection molding stage efficiency of the product. At the same time, the above process can make the center distance of the metal shell 30 in the shell strip 200 and the center distance of the conductive terminal 10 in the terminal strip 100 not have to be consistent, thereby reducing the center distance of the terminal strip 100, that is, the center distance between each adjacent two groups of conductive terminals 10 in the terminal strip 100 is smaller than the center distance between each adjacent two metal shells 30 in the shell strip 200, so as to reduce the stamping cost and improve the electroplating efficiency.

[0029] In the present invention, several terminal strip groups 110 are cut from a terminal strip 100, the center distance between each adjacent group of conductive terminals 10 in the terminal strip 100 is smaller than the center distance between each adjacent two metal shells 30 in the shell strip 200, and the conductive terminals 10 are arranged corresponding to the metal shells 30, and the upper strip 20 is welded to the lower strip 40. The connector strip assembly adopts a process of cutting and molding the terminal strip group 110 from the terminal strip 100 before injection molding and then spot welding it to the shell strip 200, which can directly enter the injection molding section, thereby reducing the process of strip cutting and stringing, and improving the injection molding section efficiency of the product. At the same time, the above process can make the center distance of the metal shell 30 in the shell strip 200 and the center distance of the conductive terminal 10 in the terminal strip 100 not have to be consistent, thereby reducing the center distance of the terminal strip 100, so as to reduce the stamping cost and improve the electroplating efficiency.

[0030] In summary, the above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the claims and description of the present invention should still fall within the scope of the patent of the present invention.

Claims

1. A connector strip assembly, comprising a longitudinal shell strip and a plurality of terminal strip groups located on the shell strip, wherein the shell strip is provided with a plurality of metal shells evenly arranged in the longitudinal direction and a lower strip connected to the lateral ends of the metal shells, and the terminal strip group is provided with a group of conductive terminals and an upper strip connected to the lateral ends of the conductive terminals; characterized in that: Several terminal strip groups are cut from a terminal strip, the center distance between each two adjacent groups of conductive terminals in the terminal strip is smaller than the center distance between each two adjacent metal shells in the shell strip, and the conductive terminals are arranged corresponding to the metal shells, and the upper strip is welded to the lower strip.

2. The connector strip assembly according to claim 1, wherein: Each of the conductive terminals is provided with a holding portion, a contact portion protruding upward from the holding portion, and a welding portion bending and extending upward from the holding portion. The contact portions of a plurality of the conductive terminals are located at the same height.

3. The connector strip assembly according to claim 2, wherein: The upper material strip is provided with two main material strips located at two lateral sides of the conductive terminal and a connecting material strip connected between the two main material strips, and the main material strip is connected to the retaining portion of the conductive terminal.

4. The connector strip assembly according to claim 2, wherein: The welding parts in each group of the conductive terminals are located in the same plane, and the upper material strip is provided with a secondary material strip for connecting the welding parts together.

5. The connector strip assembly according to claim 4, wherein: The terminal strip is provided with a stopper protruding upward, and the stopper is higher than the welding portion.

6. The connector strip assembly according to claim 4, wherein: The metal shell is provided with a flat top wall, side walls extending upward from the side edges of the top wall, and fixing legs bent inward from the top edges of the side walls, and the fixing legs and the welding portion are located in the same plane.

7. The connector strip assembly according to claim 6, wherein: The retaining portion of the conductive terminal is located above the top wall of the metal shell, and the two are not in contact.

8. The connector strip assembly according to claim 6, wherein: The lower material strip is provided with a front material strip and a rear material strip located on both lateral sides of the metal shell and a side material strip connected between the front material strip and the rear material strip. The front material strip and the rear material strip are respectively connected to the lateral ends of the top wall of the metal shell.

9. The connector strip assembly according to claim 8, wherein: The side material strip on one longitudinal side of the metal shell is connected to the top wall, and the side material strip on the other longitudinal side of the metal shell is provided with a limiting portion protruding upward.

10. The connector strip assembly according to claim 1, wherein: The upper material strip is provided with an upper positioning hole, and the lower material strip is provided with a lower positioning hole. When the terminal material strip group is placed on the shell material strip, the upper positioning hole is arranged corresponding to the lower positioning hole.

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