Electrical connector module

Abstract

An electrical connector module for electrically connecting to a mating circuit board, comprising a base, a terminal assembly combined with the base, and a cable. The terminal assembly includes an insulating member and a plurality of conductive terminals combined with the insulating member. The plurality of conductive terminals are at least arranged in a row. The cable is electrically connected to the corresponding conductive terminals. The conductive terminals include several pairs of signal terminals and several ground terminals. At least one ground terminal is provided on each side of at least one pair of the signal terminals. It further includes a connecting piece, and the connecting piece electrically connects at least two ground terminals located on both sides of a pair of the signal terminals, achieving a better grounding effect and having better high-speed signal transmission performance.

Description

Technical Field

[0001] This application relates to an electrical connector module.

Background Art

[0002] Chinese Patent Publication No. CN208889937U discloses a connector module, which includes a conductive housing with a main body part and a terminal assembly fixed to the main body part. The terminal assembly includes an insulating member and several groups of signal terminals fixed in the insulating member. The insulating member includes several insulating bodies arranged in a row and a connecting body connecting the several insulating bodies into one body. The main body part is formed with several terminal assembly receiving cavities arranged in a row in the up and down direction and a connecting groove connecting the row of several terminal assembly receiving cavities into one body in the left and right direction. The insulating body is correspondingly received in the terminal assembly receiving cavity, and the connecting body is correspondingly received in the connecting groove. The terminals of such an electrical connector module have a certain length of extension path in the insulating member. However, for a relatively long extension path, if no treatment is done between high-speed signal terminal pairs, it will affect high-speed signal transmission. In addition, there will also be a situation where the voltages between each grounding terminal are not equal (zero potential cannot be achieved synchronously), which will further affect high-speed signal transmission.

[0003] In view of this, it is necessary to provide a new electrical connector module to solve the above technical problems.

Summary of the Invention

[0004] The purpose of this application is to provide an electrical connector module, which is convenient to assemble, has a stable overall structure, has a better grounding effect and has better high-speed signal transmission performance.

[0005] To achieve the above purpose, this application is realized through the following technical solutions:

[0006] An electrical connector module for electrically connecting with a mating circuit board, including a base, a terminal assembly combined with the base, and a cable. The terminal assembly includes an insulating member and several conductive terminals combined with the insulating member. The several conductive terminals are at least arranged in a row. Each conductive terminal includes a terminal fixing part fixed in the insulating member, a terminal wiring part extending from one end of the terminal fixing part and exposed outside the insulating member and the base, and a terminal docking part extending from the other end of the terminal fixing part and exposed outside the insulating member and the base. The cable is electrically connected to the corresponding terminal wiring part. The conductive terminals include several pairs of signal terminals and several grounding terminals. At least one grounding terminal is provided on each side of at least one pair of the signal terminals. A series connection member is also included, and the series connection member electrically connects at least two grounding terminals located on both sides of a pair of the signal terminals.

[0007] Furthermore, a receiving groove is formed through the base along the thickness direction of the docking circuit board. The terminal assembly is combined in the receiving groove. The terminal wiring portion is located on the surface of the base away from the docking circuit board, and the terminal docking portion is located on the surface of the base in contact with the docking circuit board.

[0008] Furthermore, at least the inner wall position of the receiving groove of the base has a shielding function.

[0009] Furthermore, the base is made of a metal material and has a shielding function. A clamping foot is formed on the extension of the series connection piece, and the clamping foot is correspondingly electrically connected to the base.

[0010] Furthermore, a clamping groove is formed on the base corresponding to the clamping foot, and the clamping foot is correspondingly inserted into the clamping groove to achieve fixation and electrical connection with the base.

[0011] Furthermore, an insulating block is further included. The insulating block is at least integrally formed and covered on the surface of the base and the terminal assembly away from the docking circuit board through injection molding. The insulating block covers the terminal wiring portion and the cable electrically connected to the terminal wiring portion.

[0012] Furthermore, two terminal assemblies are provided side by side at intervals, and a row of conductive terminals is combined in each terminal assembly.

[0013] Furthermore, at least one row of the conductive terminals includes several pairs of signal terminals. Several pairs of signal terminals are composed of several pairs of high-speed signal terminals and several pairs of non-high-speed signal terminals. At least one grounding terminal is provided on both sides of each pair of signal terminals. The series connection piece electrically connects at least two grounding terminals located on both sides of a pair of high-speed signal terminals.

[0014] Furthermore, at least two grounding terminals on both sides of each pair of high-speed signal terminals are electrically connected by the series connection piece.

[0015] Furthermore, the cable includes several groups of high-speed signal cables and several groups of non-high-speed signal cables. At least one group of high-speed signal cables includes high-speed signal lines and high-speed grounding lines. The high-speed signal lines are correspondingly electrically connected to the terminal wiring portions of the high-speed signal terminals, and the high-speed grounding lines are correspondingly electrically connected to the terminal wiring portions of the grounding terminals. The base is made of a metal material and has a shielding function. At least one group of non-high-speed signal cables includes non-high-speed signal lines and non-high-speed grounding lines. The non-high-speed signal lines are correspondingly electrically connected to the terminal wiring portions of the non-high-speed signal terminals, and the non-high-speed grounding lines are correspondingly electrically connected to the base.

[0016] Further, the insulating member is formed with a front end face perpendicular to the docking circuit board and a rear end face opposite to the front end face. The front end face is recessed inward to form an air groove. The terminal fixing portions of at least a pair of the signal terminals and at least two terminal fixing portions of the grounding terminals located on both sides of the at least a pair of the signal terminals are exposed to the air groove, and the series connection member is combined in the air groove.

[0017] Further, the air groove of the insulating member extends from one grounding terminal at one end of a row of the conductive terminals to one grounding terminal at the other end.

[0018] Further, the rear end face of the insulating member is recessed inward to form a receiving groove. At least a part of each of the conductive terminals is exposed to the receiving groove. The electrical connection member module further includes an insulating filling member, and the insulating filling member is assembled, sealed and fixed in the receiving groove.

[0019] Further, the series connection member is formed by stamping and bending a metal sheet. The series connection member is formed with an N-shaped main body portion, and two free legs of the main body portion extend along the arrangement direction of the conductive terminals to form wings electrically connected to the corresponding grounding terminals.

[0020] Further, after the series connection member is combined with the terminal assembly, the whole is inserted and assembled into the receiving groove from bottom to top, and the series connection member is exposed from one side surface of the electrical connection member module that abuts against the docking circuit board.

[0021] The beneficial effects of the present application are: it has a better grounding effect and better high-speed signal transmission performance.

Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the electrical connection member module of the present application;

[0023] Figure 2 is Figure 1 a schematic structural diagram of the electrical connection member module of the present application shown in [reference number] viewed from another angle;

[0024] Figure 3 is a partial three-dimensional exploded view of the electrical connection member module of the application, which mainly shows a three-dimensional schematic diagram of the insulating block, the terminal assembly, and one of the series connection members separated from the base;

[0025] Figure 4 is a partial three-dimensional exploded view of the electrical connection member module of the application, which mainly shows a three-dimensional schematic diagram of the insulating block, the terminal assembly, and one of the series connection members separated from the base, relative to Figure 3 , its perspective is changed;

[0026] Figure 5It is a partial three-dimensional exploded view of the electrical connection component module, mainly showing a three-dimensional schematic diagram of the insulating block, the terminal assembly, and one of the series connection components separated from the base;

[0027] Figure 6 It is a partial three-dimensional exploded view of the electrical connection component module, mainly showing a three-dimensional schematic diagram of the insulating block and the terminal assembly separated from the base;

[0028] Figure 7 It is a cross-sectional view of the A-A line of the electrical connector module of the present application from Figure 1 in;

[0029] Figure 8 It is Figure 7 an enlarged view of the structure within the circled part in;

[0030] Figure 9 It is Figure 3 an enlarged view of the structure within the circled part in.

Detailed implementation manners

[0031] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of the present application.

[0032] Here, it should also be noted that in order to avoid obscuring the present application due to unnecessary details, only the structures and / or processing steps closely related to some embodiments of the present application are shown in the drawings, while other details less related to some embodiments of the present application are omitted.

[0033] In addition, it should also be noted that the terms "include", "comprise", "have" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0034] Please refer to Figures 1 to 9As shown, the present application discloses an electrical connector module for electrically connecting to a mating circuit board (not shown). The electrical connector module includes a base 1, a terminal assembly 2 combined with the base 1, and a cable 3. The terminal assembly 2 includes an insulating member 21 and a plurality of conductive terminals 22 combined with the insulating member 21. In the present application, there are two insulating members 21 which are arranged side by side at intervals. Each of the insulating members 21 incorporates a row of conductive terminals 22 composed of a plurality of the conductive terminals 22.

[0035] Please refer to Figure 5 and Figure 6 As shown, each of the conductive terminals 22 includes a terminal fixing portion 221 fixed in the insulating member 21, a terminal wiring portion 222 extending from one end of the terminal fixing portion 221 and exposed outside the insulating member 21 and the base 1, and a terminal docking portion 223 extending from the other end of the terminal fixing portion 221 and exposed outside the insulating member 21 and the base 1. The cable 3 is electrically connected to the terminal wiring portion 222 of each corresponding conductive terminal 22.

[0036] In the present application, each of the terminal fixing portions 221 extends in a strip shape along the thickness direction of the mating circuit board. The terminal wiring portion 222 is formed by bending 90 degrees from the end of the terminal fixing portion 221 away from the mating circuit board. The terminal docking portion 223 extends from the end of the terminal fixing portion 221 adjacent to the mating circuit board. The extending direction of the terminal docking portion 223 forms a certain angle with the thickness direction of the mating circuit board. The terminal docking portion 223 and the terminal fixing portion 221 are arranged at an obtuse angle. The terminal docking portion 223 has a cantilever structure and can elastically deform along the thickness direction of the mating circuit board. When the electrical connector module is assembled to the mating circuit board, the terminal docking portion 223 is elastically pressed against the surface of the mating circuit board to achieve electrical connection.

[0037] Please refer to Figure 7 and in combination with Figure 3 As shown, the conductive terminal 22 includes a plurality of pairs of signal terminals 201 and a plurality of ground terminals 202. At least one ground terminal 202 is provided on each side of at least one pair of the signal terminals 201. The electrical connector module of the present application further includes a series connection member 4, and the series connection member 4 electrically connects two ground terminals 202 located on both sides of a pair of the signal terminals 201.

[0038] Please refer to Figures 3 to 7As shown, a receiving groove 10 is formed through the base 1 in the thickness direction of the docking circuit board, and each terminal assembly 2 is correspondingly combined in the receiving groove 10. The insulating member 21 is formed with a front end face 211 perpendicular to the docking circuit board and a rear end face 212 opposite to the front end face 211. An air groove 20 is formed by inward depression of the front end face 211. The terminal fixing parts 221 of at least a pair of signal terminals 201 and the terminal fixing parts 221 of at least two grounding terminals 202 located on both sides of the at least a pair of signal terminals 201 are exposed to the air groove 20, and the series connection member 4 is combined in the air groove 20. Please refer to Figure 4 and in combination with Figure 7 As shown, the air groove 20 of the insulating member 21 extends from one grounding terminal 2020 at one end to one grounding terminal 202 at the other end among a row of the conductive terminals 22. Such a design is for the blanking (blanking between adjacent conductive terminals 22) after the integral molding of a row of conductive terminals 22 and the insulating member 21. At the same time, the air groove 20 has the effect of adjusting impedance.

[0039] Please refer to Figures 3 to 7 As shown, a receiving groove 200 is formed by inward depression of the rear end face 212 of the insulating member 21. At least a part of each conductive terminal 22 is exposed to the receiving groove 200. The electrical connection component module further includes an insulating filling member 6, and the insulating filling member 6 is assembled, blocked and fixed in the receiving groove 200. The setting of the receiving groove 200 is also for the blanking (blanking between adjacent conductive terminals 22) after the integral molding of a row of conductive terminals 22 and the insulating member 21, and the insulating filling member 6 is used to adjust impedance.

[0040] In this application, the series connection member 4 combined in the air groove 20 is formed by stamping and bending a metal sheet. The series connection member 4 located in the air groove 20 is formed with an N-shaped main body portion 41. Two free feet of the main body portion 41 extend along the arrangement direction of the conductive terminals 21 to form wing portions 411 electrically connected to the corresponding grounding terminals 202. The setting of the series connection member 4 can enable the adjacent grounding terminals 202 to form a lap joint on their extension paths to achieve a better grounding effect, and at the same time can ensure that the zero potential is synchronously realized between the grounding terminals 202. In this application, the extension length of the N-shaped main body portion 41 in the thickness direction of the docking circuit board is not less than half of the extension length of the terminal fixing part 221 in the thickness direction of the docking circuit board, so as to make the adjacent grounding terminals 202 form a surface contact and a dense contact as much as possible to achieve a better grounding and synchronous zero potential effect. During assembly, the series connection member 4 is combined with the terminal assembly 2 and then the whole is inserted into the receiving groove 10 from bottom to top (i.e., along the direction away from the circuit board), and the series connection member 4 is exposed from the side surface of the electrical connection component module close to the docking circuit board.

[0041] In this application, at least one row of the conductive terminals 22 includes several pairs of the signal terminals 201, and several pairs of the signal terminals 201 are composed of several pairs of high-speed signal terminals 2011 and several pairs of non-high-speed signal terminals 2012. One grounding terminal 202 is arranged on each side of each pair of the signal terminals 201, and the connecting member 4 electrically connects the two grounding terminals 202 located on both sides of a pair of the high-speed signal terminals 2011. In this application, preferably, the grounding terminals 202 on both sides of each pair of the high-speed signal terminals 2011 are electrically connected by the connecting member 4. In addition, there are multiple connecting members 4 in this application. In other embodiments, local positions of multiple connecting members 4 located on the same terminal assembly 2 can be integrally connected.

[0042] Further, the base 1 is made of a metal material and has a shielding function. A clamping foot 42 is formed by extending on the connecting member 4, and the clamping foot 42 is correspondingly inserted into a clamping groove 100 formed on the base 1 to achieve electrical connection and mutual fixation at the same time. Of course, in other embodiments, the clamping foot 42 can also be directly welded to the base 1 to achieve electrical connection, or elastically lapped to achieve electrical connection.

[0043] Please refer to Figures 3 to 6 As shown, the cable 3 includes several groups of high-speed signal cables 31 and several groups of non-high-speed signal cables 32. At least one group of the high-speed signal cables 31 includes a high-speed signal line 311 and a high-speed ground line 312. The high-speed signal line 311 is correspondingly electrically connected to a terminal connection portion 222 of the high-speed signal terminal 2011, and the high-speed ground line 312 is correspondingly electrically connected to a terminal connection portion 222 of the grounding terminal 202. At least one group of the non-high-speed signal cables 32 includes a non-high-speed signal line 321 and a non-high-speed ground line 322. The non-high-speed signal line 321 is correspondingly electrically connected to a terminal connection portion 222 of the non-high-speed signal terminal 2012, and the non-high-speed ground line 322 is correspondingly electrically connected to the base 1 (specifically, reference can be made to Figure 9 and in combination with Figure 3 as shown).

[0044] Of course, in other embodiments, the base 1 can also be injection-molded from an insulating material. In this embodiment, at least a local position of the base 1 has a shielding function, such as the inner wall position of the receiving groove 10, the position where the base 1 contacts the non-high-speed ground line 322, and the position where the clamping groove 100 of the base 1 contacts the clamping foot 42. Of course, preferably, the regions of the base 1 having a shielding function are connected in series (electrically connected) and electrically connected to the docking circuit board.

[0045] The electrical connector module of the present application further includes an insulating block 5, which is at least integrally covered on one side surface of the base 1 and the terminal assembly 2 away from the docking circuit board by injection molding, and the insulating block 5 covers the terminal wiring portion 222 and the cable portion electrically connected to the terminal wiring portion 222.

[0046] The electrical connector module of the present application is generally electrically connected to a docking circuit board by an electrical connector and communicates with a docking socket electrical connector module through a cable, or two docking circuit boards can be connected through the electrical connector module of the present application. The electrical connector module of the present application can be more easily miniaturized and has better high-frequency characteristics at the same time.

[0047] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An electrical connector module for electrically connecting to a mating circuit board, comprising a base, a terminal assembly combined with the base, and a cable. The terminal assembly includes an insulating member and a plurality of conductive terminals combined with the insulating member. The plurality of conductive terminals are arranged in at least one row. Each conductive terminal includes a terminal fixing portion fixed within the insulating member, a terminal wiring portion extending from one end of the terminal fixing portion and exposed outside the insulating member and the base, and a terminal docking portion extending from the other end of the terminal fixing portion and exposed outside the insulating member and the base. The cable is electrically connected to the corresponding terminal wiring portion. The conductive terminals include a plurality of pairs of signal terminals and a plurality of ground terminals. At least one ground terminal is provided on each side of at least one pair of the signal terminals. It is characterized in that: It further includes a connecting piece, and the connecting piece electrically connects at least two ground terminals located on both sides of a pair of the signal terminals; The base is formed with a receiving groove penetrating in the thickness direction of the mating circuit board. Each terminal assembly is correspondingly combined within the receiving groove. The terminal wiring portion is located on the surface of the base away from the mating circuit board, and the terminal docking portion is located on the surface of the base in contact with the mating circuit board; The insulating member is formed with a front end face perpendicular to the mating circuit board and a rear end face opposite to the front end face. The front end face is recessed inward to form an air groove. The terminal fixing portions of at least one pair of the signal terminals and the terminal fixing portions of at least two of the ground terminals located on both sides of the at least one pair of the signal terminals are all exposed into the air groove, and the connecting piece is combined within the air groove; The base has a shielding function. A clamping foot is formed and extended on the connecting piece, and the clamping foot is correspondingly inserted into a clamping groove formed on the base to achieve electrical connection and fixation.

2. The electrical connector module according to claim 1, characterized in that: It further includes an insulating block, and the insulating block is at least combined and covered on the surface of the base and the terminal assembly away from the mating circuit board by injection molding. The insulating block covers the terminal wiring portion and the cable electrically connected to the terminal wiring portion.

3. The electrical connector module according to claim 1, characterized in that: Two terminal assemblies are provided side by side with a gap. A row of conductive terminals is combined within each terminal assembly.

4. The electrical connector module according to claim 1, characterized in that: At least one row of the conductive terminals includes a plurality of pairs of the signal terminals. The plurality of pairs of the signal terminals are composed of a plurality of pairs of high-speed signal terminals and a plurality of pairs of non-high-speed signal terminals. At least one ground terminal is provided on each side of each pair of the signal terminals. The connecting piece electrically connects at least two of the ground terminals located on both sides of a pair of the high-speed signal terminals.

5. The electrical connector module according to claim 4, characterized in that: At least two of the ground terminals on both sides of each pair of the high-speed signal terminals are electrically connected by the connecting piece.

6. The electrical connector module according to claim 4, characterized in that: The cable includes several groups of high-speed signal cables and several groups of non-high-speed signal cables. At least one group of the high-speed signal cables includes high-speed signal lines and high-speed ground lines. The high-speed signal lines are correspondingly electrically connected to the terminal connection parts of the high-speed signal terminals, and the high-speed ground lines are correspondingly electrically connected to the terminal connection parts of the ground terminals. The base is made of a metal material and has a shielding function. At least one group of the non-high-speed signal cables includes non-high-speed signal lines and non-high-speed ground lines. The non-high-speed signal lines are correspondingly electrically connected to the terminal connection parts of the non-high-speed signal terminals, and the non-high-speed ground lines are correspondingly electrically connected to the base.

7. The electrical connector module according to claim 1, wherein: The air grooves of the insulating member extend from one of the ground terminals at one end of a row of the conductive terminals to one of the ground terminals at the other end.

8. The electrical connector module according to claim 1, wherein: The rear end surface of the insulating member is recessed inward to form a receiving groove, at least a part of each of the conductive terminals is exposed to the receiving groove, and the electrical connector module further includes an insulating filling member, and the insulating filling member is assembled, sealed and fixed in the receiving groove.

9. The electrical connector module according to claim 6, wherein: The connecting piece is formed by stamping and bending a metal sheet. The connecting piece forms an N-shaped main body part, and two free legs of the main body part extend along the arrangement direction of the conductive terminals to form wings electrically connected to the corresponding ground terminals.

10. The electrical connector module according to any one of claims 1 to 6, wherein: After the connecting piece is combined with the terminal assembly, the whole is inserted and assembled into the receiving groove from bottom to top, and the connecting piece is exposed from the side surface of the electrical connector module close to the docking circuit board.

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