Card edge electric connector

Abstract

The utility model discloses a card edge electric connector. The card edge electric connector comprises a plurality of first terminals, a plurality of second terminals, a terminal holder and a first insulation structure, the plurality of first terminals are arranged to form a first configuration structure. The plurality of second terminals are arranged to form a second configuration structure, and the second configuration structure is different from the first configuration structure. The terminal holder holds and arranges the plurality of first terminals and the plurality of second terminals to form a first terminal row. The first insulating structure combines the plurality of first terminals and the plurality of second terminals of the first terminal row and the terminal support member. A plurality of first terminals and a plurality of second terminals in different configurations are held and arranged to form a first terminal row through a terminal holder. The plurality of first terminals and the plurality of second terminals with different configurations can be combined with the first insulation structure by an in-mold injection molding process, so that the card edge electric connector with the terminals with different configurations is realized. Meanwhile, the terminal holder is made of a conductive material and can be in lap joint with the grounding terminal to serve as a grounding assembly to achieve the grounding effect.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a card edge electric connector. Background Art

[0002] The card edge electrical connector is used to insert an electronic card so that the electronic card forms an electrical connection with a circuit board or a cable, such as a card edge electrical connector for an electronic expansion card. Chinese patent CN110061376B discloses a card edge electrical connector, which includes a plurality of terminals arranged in two rows and an insulating body, wherein the plurality of terminals are combined with the insulating body by an in-mold injection molding process, the insulating body has an insertion slot, and the contact portion of the terminal is arranged in the slot, the plurality of terminals include a plurality of grounding terminals, and the card edge electrical connector also includes a grounding strip, which is assembled on the insulating body after the plurality of terminals are combined with the insulating body, and each grounding terminal has an abutment portion for forming an overlap with the grounding strip.

[0003] As for the structure disclosed in Chinese patent CN110061376B, since its terminals have the same configuration structure, they can be combined with the insulating body through the in-mold injection molding process. If the card edge electrical connector wishes to set a plurality of terminals with different configuration structures, the in-mold injection molding process is concerned, and the in-mold injection molding process is not directly applicable to the manufacture of the card edge electrical connector with a plurality of terminals with different configuration structures. Utility Model Content

[0004] The utility model aims to provide a card edge electrical connector to solve the problem in the prior art that the card edge electrical connector with terminals of different configurations cannot be manufactured by the in-mold injection molding process.

[0005] In order to solve the above technical problems, the implementation method of the utility model is to provide a card edge electrical connector: including a plurality of first terminals, a plurality of second terminals, a terminal retainer and a first insulating structure. The plurality of first terminals are arranged to form a first configuration structure and have at least one first grounding terminal. The plurality of second terminals are arranged to form a second configuration structure, and the second configuration structure is different from the first configuration structure. The terminal retainer keeps the plurality of first terminals and the plurality of second terminals arranged to form a first terminal column. The first insulating structure combines the plurality of first terminals of the first terminal column with the plurality of second terminals and the terminal support. The terminal retainer is a conductive component, and the terminal retainer forms an electrical connection with at least one first grounding terminal.

[0006] Optionally, the plurality of second terminals include at least one second grounding terminal, and the terminal holder is also electrically connected to the at least one second grounding terminal.

[0007] Optionally, the terminal retainer includes a retainer body and a plurality of protruding pins, wherein the plurality of protruding pins are arranged on one side of the retainer body and inserted into through holes of at least one first grounding terminal and / or at least one second grounding terminal.

[0008] Optionally, the plurality of protruding pins extend in a direction perpendicular to the retainer body, and the retainer body is spaced apart from the plurality of first terminals and the plurality of second terminals.

[0009] Optionally, convex ribs are respectively provided on hole walls on two opposite sides of the through hole, and the convex ribs abut against the convex pins.

[0010] Optionally, the plurality of second terminals and the plurality of first terminals are further arranged to form a second terminal column parallel to the first terminal column, and the number of terminal retainers is two, and the two terminal retainers respectively retain the plurality of first terminals and the plurality of second terminals in the first terminal column and the second terminal column.

[0011] Optionally, it further includes a second insulating structure, which combines a plurality of first terminals and a plurality of second terminals of the second terminal column and a terminal support, and the second insulating structure is assembled with the first insulating structure to form an insulating assembly.

[0012] Optionally, it also includes a card slot assembly, which is combined with the insulating assembly, and the card slot assembly has a slot for inserting the electronic card, and the multiple first terminals and multiple second terminals of the first terminal column and the multiple first terminals and multiple second terminals of the second terminal column are respectively located on two slot walls on opposite sides of the slot.

[0013] Optionally, it further includes a plurality of cables, the plurality of cables are electrically connected to the plurality of first terminals and the plurality of second terminals, and the cables and the slot assembly are located on opposite sides of the insulating assembly.

[0014] Optionally, it also includes a cable fixing base, which combines multiple cables and an insulating assembly.

[0015] The card edge electrical connector provided by the utility model uses a terminal holder to keep multiple first terminals and multiple second terminals of different configurations arranged to form a first terminal column. In this way, multiple first terminals and multiple second terminals of different configurations can be respectively combined with the first insulating structure and the second insulating structure by an in-mold injection molding process, thereby realizing a card edge electrical connector with terminals of different configurations. At the same time, the terminal holder is made of conductive material and can also overlap with the grounding terminal to serve as a grounding component to achieve the effect of grounding and electromagnetic shielding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional exploded view of a first terminal row, a second terminal row and two terminal retainers of a card edge electrical connector according to an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 A three-dimensional diagram of two terminal retaining members respectively connected to the first terminal column and the second terminal column;

[0019] Figure 3 yes Figure 2 A stereoscopic view of a structure in which two terminal retaining members are respectively assembled with the first terminal column and the second terminal column and are respectively combined with the first insulating structure and the second insulating structure formed by an in-mold injection molding process;

[0020] Figure 4 yes Figure 3 A stereogram from another perspective;

[0021] Figure 5 yes Figure 3 A three-dimensional diagram of an insulating assembly formed by assembling a first insulating structure and a second insulating structure;

[0022] Figure 6 is a three-dimensional diagram of a plurality of cables welded to a first terminal column and a second terminal column;

[0023] Figure 7 yes Figure 6 A three-dimensional diagram of a structure combined with a formed card slot assembly through an overmolding process;

[0024] Figure 8 yes Figure 7 A stereogram from another perspective;

[0025] Fig. 9 yes Figure 7 A three-dimensional diagram of the structure combined with the circuit board and the mounting parts;

[0026] Fig.10 yes Fig. 9 A stereogram from another perspective;

[0027] Fig.11 yes Fig. 9 The structure is combined with the formed cable fixing base through an overmolding process to realize a three-dimensional diagram of a card edge electrical connector according to an embodiment of the utility model;

[0028] Fig.12 yes Fig.11 A stereogram from another perspective;

[0029] Fig.13 yes Fig.11 A top view of a card edge electrical connector;

[0030] Fig.14 is along Fig.13 A cross-sectional view of the AA line;

[0031] Fig.15 is along Fig.13 Cross-sectional view of line BB. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figures 1 to 12 , which shows the manufacturing process of the card edge electrical connector of one embodiment of the utility model, Fig.11 and Fig.12 The card edge electrical connector of one embodiment of the utility model is shown. The card edge electrical connector of this embodiment combines terminals of different configurations with an insulating structure through an in-mold injection molding process.

[0034] like Figure 1 and Figure 2 As shown, the terminal column on the left is the first terminal column A, and the terminal column on the right is the second terminal column B. The first terminal column A includes a plurality of first terminals 11, a plurality of second terminals 12, a plurality of third terminals 13, a plurality of fourth terminals 14, and a plurality of fifth terminals 15. The plurality of first terminals 11, the plurality of second terminals 12, the plurality of third terminals 13, and the plurality of fourth terminals 14 are respectively formed by stamping different metal strips. The plurality of first terminals 11 have a first configuration structure, the plurality of second terminals 12 have a second configuration structure, the plurality of third terminals 13 have a third configuration structure, the plurality of fourth terminals 14 have a fourth configuration structure, and the plurality of fifth terminals 15 have a fifth configuration structure. The first configuration structure, the second configuration structure, the third configuration structure, the fourth configuration structure, and the fifth configuration structure are different configuration structures from each other.

[0035] The different configuration structures referred to in this embodiment may be different distances between terminals, different shapes of terminals, or / and different arrangement states of terminals of different shapes. The shape of the fifth terminal 15 of this embodiment is different from other terminals. The first configuration structure of the first terminal 11 includes multiple terminal groups 11A, and every four first terminals 11 form a terminal group 11A, and adjacent terminal groups 11A have the same distance. The second configuration structure of the second terminal 12 includes multiple terminal groups 12A and separately arranged second terminals 12B, and every four second terminals 12 form a terminal group 12A, and a separate second terminal 12B is set at the adjacent position of every four terminal groups 12A. Therefore, the first configuration structure and the second configuration structure are different in the arrangement state of terminals of different shapes. The third configuration structure of the third terminal 13 is to set a separate third terminal 13B at the adjacent position of every three terminal groups 13A. The fourth configuration structure of the fourth terminal 14 is to set a separate fourth terminal 14B at the adjacent position of each terminal group 14A. Therefore, the first configuration structure, the second configuration structure, the third configuration structure, the fourth configuration structure and the fifth configuration structure of this embodiment are different configuration structures from each other.

[0036] Although the present embodiment includes different first configuration structures, second configuration structures, third configuration structures, fourth configuration structures and fifth configuration structures, the present invention is not limited thereto, and the present invention is applicable as long as the terminals have two different configuration structures.

[0037] Since the above-mentioned terminals with different configurations cannot be molded on the same material strip, they must be divided into multiple material strips for separate molding. The multiple material strips combined with the insulating structure by the in-mold injection molding process will have the problem of poor reliability. Therefore, the present embodiment provides a terminal retaining member 20, which is used to maintain the relative positions of multiple first terminals 11, multiple second terminals 12, multiple third terminals 13 and multiple fourth terminals 14 with different configurations in the first terminal column A and the second terminal column B. In this way, multiple material strips with different configurations can be combined with the insulating structure by the in-mold injection molding process, and have the same reliability as products molded from the same material strip.

[0038] like Figure 1As shown in the enlarged view of , the terminal holder 20 includes a holder body 21 and a plurality of protruding pins 22. The holder body 21 is in the shape of a long rod. The plurality of protruding pins 22 are arranged at the upper edge of the holder body 21, and the protruding pins 22 extend in a direction orthogonal to the holder body 21. The two protruding pins 22 are arranged in pairs and connected to the holder body 21 through a connecting portion 23. The front ends of the protruding pins 22 form a wedge shape with a gradually decreasing thickness. The first grounding terminal 11a of the first terminal 11 of this embodiment is provided with a through hole 11a1, and ribs 11a2 are respectively provided on opposite sides of the through hole 11a1. Similarly, the second grounding terminal 12a of the second terminal 12 is provided with a through hole 12a1, the third grounding terminal 13a of the third terminal 13 is provided with a through hole 13a1, and the fourth grounding terminal 14a of the fourth terminal 14 is provided with a through hole 14a1.

[0039] like Figure 1 and Figure 2 As shown, the plurality of protruding pins 22 of the terminal holder 20 are simultaneously inserted into the through hole 11a1 of the first ground terminal 11a, the through hole 12a1 of the second ground terminal 12a, the through hole 13a1 of the third ground terminal 13a, and the through hole 14a1 of the fourth ground terminal 14a, and the protruding pins 22 are abutted and clamped by the protruding ribs 11a2, as shown in FIG. Fig.15 As shown. Therefore, the terminal holder 20 can not only maintain the relative positions of the plurality of first terminals 11, the plurality of second terminals 12, the plurality of third terminals 13 and the plurality of fourth terminals 14 through the convex pin 22, but also can contact the first grounding terminal 11a, the second grounding terminal 12a, the third grounding terminal 13a and the fourth grounding terminal 14a, while the holder body 21 maintains a predetermined distance from each terminal. The terminal holder 20 of this embodiment is a conductive component, such as a component made of metal or conductive plastic. Therefore, the terminal holder 20 of this embodiment can serve as a grounding component by forming an electrical connection with the first grounding terminal 11a, the second grounding terminal 12a, the third grounding terminal 13a and the fourth grounding terminal 14a, and plays the role of electromagnetic shielding for the signal terminal.

[0040] like Figure 3 and Figure 4As shown, the first insulating structure 30 and the second insulating structure 40 are respectively formed by an insert molding process, wherein the first insulating structure 30 combines the first terminal column A and the terminal retainer 20, and the second insulating structure 40 combines the second terminal column B and the terminal retainer 20. The first insulating structure 30 and the second insulating structure 40 fill the gap between the retainer body 21 of the terminal retainer 20 and each terminal, so as to facilitate the terminal retainer 20 and each terminal to be fixed to the first insulating structure 30 and the second insulating structure 40. The first insulating structure 30 has a plurality of snap-fit ​​protrusions 31, and the second insulating structure 40 has a plurality of snap-fit ​​recesses 41, which are used for the subsequent assembly of the first insulating structure 30 and the second insulating structure 40. The first insulating structure 30 and the second insulating structure 40 respectively form a hollow portion 32 and a hollow portion 42 between the convex pins 22 of the terminal retainer 20.

[0041] like Figure 5 As shown, the first insulating structure 30 and the second insulating structure 40 are assembled to form an insulating assembly 50 by engaging and assembling the engaging protrusion 31 of the first insulating structure 30 and the engaging recess 41 of the second insulating structure 40 .

[0042] like Figure 6 As shown, a plurality of cables C are welded to a plurality of first terminals 11 , a plurality of second terminals 12 , a plurality of third terminals 13 , and a plurality of fourth terminals 14 of the first terminal array A and the second terminal array B. As shown in FIG.

[0043] like Figure 7 and Figure 8 As shown, the slot assembly 60 is formed on the two sides and the top of the insulating assembly 50 by overmolding. Fig.13 and Fig.14 The card slot assembly 60 has a slot 61 at the top, and the elastic arm-shaped docking parts of the multiple first terminals 11, multiple second terminals 12, multiple third terminals 13, multiple fourth terminals 14 and multiple fifth terminals 15 of the first terminal column A and the second terminal column B are respectively located on two oppositely arranged slot walls of the slot 61.

[0044] like Fig. 9 and Fig.10 As shown, the circuit board P and the mounting member Q are respectively combined on both sides of the card slot assembly 60, the circuit board P has a through hole, the solder legs of the fifth terminal 15 are inserted into the through hole and form an electrical connection with the circuit board P. The mounting member Q is inserted into the assembly groove on the side of the card slot assembly 60.

[0045] like Fig.11 and Fig.12As shown, a cable fixing base 70 is formed at the bottom of the insulating assembly 50 and the card slot assembly 60 by an overmolding process, and a plurality of cables C are fixed to the cable fixing base 70. The plastic of the cable fixing base 70 fills the hollow portion 32 of the first insulating structure 30 and the hollow portion 42 of the second insulating structure 40 and covers the insulating assembly 50, thereby realizing the card edge electrical connector 1 of this embodiment. The card edge electrical connector 1 of this embodiment is a socket electrical connector for a PCIe extension cable.

[0046] The card edge electrical connector of the utility model uses a terminal holder to keep multiple first terminals and multiple second terminals of different configurations arranged to form a first terminal row. In this way, multiple first terminals and multiple second terminals of different configurations can be respectively combined with the first insulating structure and the second insulating structure by an in-mold injection molding process, thereby realizing a card edge electrical connector with terminals of different configurations. At the same time, the terminal holder is made of conductive material and can also overlap with the grounding terminal to serve as a grounding component to achieve the effect of grounding and electromagnetic shielding.

[0047] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0048] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A card edge electrical connector, characterized in that: include: A plurality of first terminals arranged to form a first configuration structure and having at least one first grounding terminal; a plurality of second terminals arranged to form a second configuration structure, wherein the second configuration structure is different from the first configuration structure; A terminal holder, which keeps the plurality of the first terminals and the plurality of the second terminals arranged to form a first terminal row; a first insulating structure combining the plurality of first terminals of the first terminal column with the plurality of second terminals and the terminal support; The terminal holder is a conductive component, and the terminal holder is electrically connected to at least one of the first ground terminals.

2. The card edge electrical connector according to claim 1, wherein: The plurality of second terminals include at least one second ground terminal, and the terminal holder is electrically connected to the at least one second ground terminal.

3. The card edge electrical connector according to claim 2, wherein: The terminal holder includes a holder body and a plurality of protruding pins, wherein the plurality of protruding pins are arranged on one side of the holder body and inserted into through holes of at least one first grounding terminal and at least one second grounding terminal.

4. The card edge electrical connector according to claim 3, wherein: The plurality of protruding pins extend in a direction orthogonal to the holder body, and the holder body is spaced apart from the plurality of first terminals and the plurality of second terminals.

5. The card edge electrical connector according to claim 3, wherein: The hole walls at two opposite sides of the through hole are respectively provided with convex ribs, and the convex ribs abut against the convex pins.

6. The card edge electrical connector according to claim 1, wherein: The plurality of second terminals and the plurality of first terminals are also arranged to form a second terminal column parallel to the first terminal column. The number of the terminal retainers is two, and the two terminal retainers respectively retain the plurality of first terminals and the plurality of second terminals in the first terminal column and the second terminal column.

7. The card edge electrical connector according to claim 6, wherein: It also includes a second insulating structure, which combines the first terminals of the second terminal column with the second terminals and the terminal support, and the second insulating structure is assembled with the first insulating structure to form an insulating assembly.

8. The card edge electrical connector according to claim 7, wherein: It also includes a card slot component, which is combined with the insulating assembly, and the card slot component has a slot for inserting an electronic card, and the multiple first terminals and multiple second terminals of the first terminal column and the multiple first terminals and multiple second terminals of the second terminal column are respectively located on two slot walls on opposite sides of the slot.

9. The card edge electrical connector according to claim 8, wherein: It also includes a plurality of cables, which are electrically connected with a plurality of the first terminals and a plurality of the second terminals, and the cables and the slot assembly are located on opposite sides of the insulating assembly.

10. The card edge electrical connector according to claim 9, wherein: Also included is a cable fixing base, which combines a plurality of the cables and the insulating assembly component.

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