A high-speed electrical connector

Abstract

A high-speed electrical connector includes a conductive housing provided with a main body portion and a terminal assembly fixed to the main body portion. The terminal assembly includes an insulating member and a plurality of signal terminals fixed within the insulating member. Each of the signal terminals includes a terminal connection portion exposed outside the insulating member and the conductive housing. The high-speed electrical connector further includes a plurality of groups of cables and a support member. Each group of cables includes a signal line and a ground line. The support member correspondingly spaces apart the signal lines and the ground lines of each group of cables. The signal line is electrically connected to the terminal connection portion of the corresponding signal terminal. By providing the support member, shunt limiting of the signal lines and the ground lines of the cables is achieved, preventing the risk of offset short circuit between the ground line and the signal line during the production process.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication transmission, and in particular to a high-speed electrical connector.

Background Art

[0002] For related prior art, reference may be made to the such connector module disclosed in Chinese Utility Model Patent No. CN208820157U, which includes a connector module comprising a conductive housing, a terminal assembly fixedly assembled with the conductive housing, a cable electrically connected to the terminal assembly, a solder joint protection module covering the connection position between the terminal assembly and the cable, an outer mold covering the conductive housing, and a heat shrinkable sleeve sleeved on the cable. The connector module is used to be butt-jointed and fixed with a circuit board. The terminal assembly has several pieces, and each terminal assembly includes an insulating body and a pair of signal terminals, and the pair of signal terminals are correspondingly fixed to the insulating body by injection molding. The cable has several groups, and each group of cables includes two signal lines and one ground line. During assembly, the two signal lines of each group of cables are in contact with the corresponding pair of signal terminals, and the ground line of the cable is in contact with the ground plane formed on the conductive housing correspondingly. The solder joint protection module and the outer mold are integrally injection molded.

[0003] However, in the process of integrally injection molding the solder joint protection module and the outer mold in the prior art connector module, due to the injection pressure and high temperature, the ground line will be skewed and displaced to short-circuit with the signal line, thus resulting in problems such as poor electrical performance of withstand voltage and withstand current.

[0004] In view of this, it is necessary to provide a new high-speed electrical connector to solve the above technical problems.

Summary of the Invention

[0005] The purpose of the present application is to provide a new high-speed electrical connector that can prevent the problem of skewed short circuit of the cable.

[0006] To achieve the above purpose, the present application is realized through the following technical solutions:

[0007] A high-speed electrical connector includes a conductive housing having a main body portion and a terminal assembly fixed to the main body portion. The terminal assembly includes an insulating member and a plurality of signal terminals fixed within the insulating member. Each of the signal terminals includes a terminal fixing portion fixed within the insulating member, a terminal wiring portion extending from the terminal fixing portion and exposed outside the insulating member and the conductive housing, and a terminal docking portion extending from the terminal fixing portion and exposed outside the insulating member and the conductive housing. The terminal docking portion is correspondingly electrically connected to a circuit board. The high-speed electrical connector further includes a plurality of groups of cables and a bracket member. Each group of the cables includes a signal line and a ground line. The bracket member correspondingly spaces apart the signal lines and the ground lines of each group of cables. The signal line is electrically connected to the terminal wiring portion of the corresponding signal terminal.

[0008] Further, the terminal wiring portion protrudes from above the insulating member and the metal housing, and the terminal docking portion protrudes from below the insulating member and the metal housing. The bracket member is disposed above the terminal wiring portion on the insulating member.

[0009] Further, the ground line of the cable is electrically connected to the conductive housing.

[0010] Further, the signal line is located below the bracket member, and the ground line is located above the bracket member.

[0011] Further, it further includes an outer mold member. The outer mold member is fixed to the conductive housing and covers at least the portion where the signal line is electrically connected to the terminal wiring portion and the portion where the ground terminal contacts the conductive housing.

[0012] Further, a terminal module receiving cavity is formed through the main body portion of the conductive housing in the up and down direction. The terminal assembly is assembled into the terminal module receiving cavity in the up and down direction.

[0013] Further, there are a plurality of the terminal module receiving cavities. The plurality of terminal module receiving cavities are arranged in a row along the left and right direction. The periphery of each terminal module receiving cavity is shielded by the conductive housing. The insulating member includes a plurality of insulating bodies. The plurality of insulating bodies are arranged in a row along the left and right direction. Each insulating body is correspondingly assembled and received in the terminal module receiving cavity. Two of the signal terminals are fixed within each insulating body.

[0014] Further, a communication groove is recessed on the lower surface of the conductive housing. The communication groove locally communicates a plurality of terminal module receiving cavities arranged in a row. The insulating member includes a connection body that integrally connects a plurality of insulating bodies arranged in a row. The insulating member is assembled and fixed into the conductive housing from bottom to top. The connection body is correspondingly received in the communication groove.

[0015] Further, a through hole is formed through the bracket member corresponding to the upper position of the terminal connection part. The signal wire and the terminal connection part leak out to the through hole. A plurality of ground wire positioning grooves are formed by recessing on the upper surface of the bracket member, and a plurality of signal wire positioning grooves are formed by recessing on the lower surface of the bracket member. The ground wire of the cable is correspondingly limited in the ground wire positioning groove, and the signal wire of the cable is correspondingly limited in the signal wire positioning groove.

[0016] Further, a limiting wall protrudes upward at the front position of the conductive housing with respect to the bracket member. A plurality of limiting grooves arranged in the left-right direction are formed by recessing on the limiting wall. The ground wire is correspondingly limited in the limiting groove and is electrically connected to the conductive housing. A plurality of cable dividing parts arranged in the left-right direction protrude upward at the rear position of the conductive housing with respect to the bracket member. Each group of cables is respectively limited in the middle between two adjacent cable dividing parts.

[0017] Compared with the prior art, the present application has the following beneficial effects: By providing a bracket member to achieve shunt limiting of the signal wire and the ground wire of the cable, the risk of offset short circuit between the ground wire and the signal wire during the production process is prevented.

Description of the Drawings

[0018] Figure 1 is a three-dimensional schematic diagram of the high-speed electrical connector of the present application;

[0019] Figure 2 is a partial three-dimensional exploded view of the high-speed electrical connector of the present application, which shows a three-dimensional schematic diagram after the outer mold part is separated from the conductive housing;

[0020] Figure 3 is a partial three-dimensional exploded view of the high-speed electrical connector of the present application, which shows a three-dimensional schematic diagram after the outer mold part, the upper row of cables and the upper bracket member are separated from the conductive housing;

[0021] Figure 4 is a partial three-dimensional exploded view of the high-speed electrical connector of the present application, which shows a three-dimensional schematic diagram after the outer mold part, the upper row of cables, the upper bracket member, the lower row of cables and the lower bracket member are separated from the conductive housing;

[0022] Figure 5 is a three-dimensional exploded view of the high-speed electrical connector of the present application;

[0023] Figure 6 is Figure 5 a three-dimensional schematic diagram of the high-speed electrical connector of the present application viewed from another angle;

[0024] Figure 7 is a partial three-dimensional exploded view of the high-speed electrical connector of the present application, which shows a three-dimensional schematic diagram after the outer mold part and the grounding part are separated from the conductive housing;

[0025] Figure 8 Yes Figure 1 Shown is a perspective view of the high-speed electrical connector of the present application from another angle;

[0026] Figure 9 Shown is a partial perspective view of the high-speed electrical connector of the present application, which shows a perspective view of the high-speed electrical connector after removing the outer mold;

[0027] Figure 10 From Figure 9 is a cross-sectional view taken along line A-A in

Detailed implementation manners

[0028] It should be noted that, without conflict, the embodiments in the application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] In the description of the application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the application can be understood according to specific situations.

[0030] In the description of the application, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

[0031] In addition, for the accuracy of the description of the present application, all directions related to the present application shall be uniformly Figure 1 as a reference, where the extension direction of the X axis is the left-right direction (where the positive direction of the X axis is to the right), the extension direction of the Y axis is the front-back direction (where the positive direction of the Y axis is to the back), and the extension direction of the Z axis is the up-down direction (where the positive direction of the Z axis is up).

[0032] Please refer to Figures 1 to 10 Shown, the high-speed electrical connector of the present application includes a conductive housing 1, a terminal assembly 2 fixedly assembled with the conductive housing 1, a cable 3 electrically connected to the terminal assembly 2, a bracket member 4 supporting the cable 3, a grounding member 5 fixed to the lower surface of the conductive housing 1, and an outer mold 6 covering the conductive housing 1. The high-speed electrical connector is used to be docked and fixed with a circuit board 200.

[0033] Please refer to Figures 2 to 7 As shown, the conductive housing 1 is generally plate-shaped and includes a plate-shaped main body portion 11 and ear portions 12 respectively extending along the left and right sides of the main body portion 11. The upper surface of the main body portion 11 in the up and down direction forms a front bearing surface 111 and a rear bearing surface 112 having a drop with the front bearing surface 111. The rear bearing surface 112 is located behind the front bearing surface 111, and along the up and down direction, the front bearing surface 111 is higher than the rear bearing surface 112. A row of a plurality of front terminal module receiving cavities 110 arranged in the left and right direction are respectively formed through the main body portion 11 along the up and down direction on the front bearing surface 111, and a row of a plurality of rear terminal module receiving cavities 110 arranged in the left and right direction are respectively formed through the main body portion 11 along the up and down direction on the rear bearing surface 112. The periphery of each of the terminal module receiving cavities 110 is shielded by the conductive housing 1.

[0034] At a position in front of a row of front terminal module receiving cavities 110, the conductive housing 1 protrudes upward to form a front limiting wall 13 extending in the left and right direction. The front limiting wall 13 is recessed downward on the upper surface directly in front of the middle of each front terminal module receiving cavity 110 to form a front limiting groove 131.

[0035] At a position in front of a row of rear terminal module receiving cavities 110, the conductive housing 1 protrudes upward to form a rear limiting wall 14 extending in the left and right direction. The rear limiting wall 14 is recessed downward on the upper surface directly in front of the middle of each rear terminal module receiving cavity 110 to form a rear limiting groove 141. A row of front cable dividing portions 142 protrude upward at a position between adjacent two rear limiting grooves 141.

[0036] At a position behind a row of rear terminal module receiving cavities 110, the conductive housing 1 protrudes upward to form a plurality of rear cable dividing portions 143 arranged at intervals in the left and right direction. In the front and rear direction, each of the rear cable dividing portions 143 is strip-shaped and is respectively directly behind each of the front cable dividing portions 142.

[0037] Please refer to Figures 2 to 4 As shown, in the present application, in the front and rear direction, a certain distance is spaced between the row of front terminal module receiving cavities 110 and the rear limiting wall 14, and the conductive housing 1 protrudes upward at a position between the row of front terminal module receiving cavities 110 and the rear limiting wall 14 to form a plurality of limiting bumps 144. In the front and rear direction, each of the limiting bumps 144 is respectively directly in front of each of the front cable dividing portions 142.

[0038] Please refer to Figure 6 Combined with Figure 5As shown, in the present application, a front communication groove 1101 and a rear communication groove 1102 are recessed on the lower surface of the conductive housing 1. The front communication groove 1101 communicates with the row of front terminal module receiving cavities 110 in the left-right direction, and the rear communication groove 1102 communicates with the row of rear terminal module receiving cavities 110 in the left-right direction. The front communication groove 1101 is located in front of the rear communication groove 1102. The front communication groove 1101 and the rear communication groove 1102 are separated and shielded by the conductive housing 1.

[0039] In the present application, the conductive housing 1 is made of a metal material with conductive properties. In other embodiments, the conductive housing 1 is formed by injection molding with an insulating material. At this time, at least a partial position of the conductive housing 1 made of the insulating material is formed with a conductive layer by electroplating to achieve the function.

[0040] Please refer to Figures 4 to 6 As shown, there are two terminal assemblies 2. Each terminal assembly 2 includes an insulating member 21 and several pairs of signal terminals 22. Each insulating member 21 includes several insulating bodies 211 and a connecting body 212 that connects the several insulating bodies 211 into one body. Specifically, the connecting body 212 integrally connects the corresponding several insulating bodies 211 at the front end positions of the insulating bodies 211. Each insulating body 211 is generally in the shape of a rectangular prism column, and a pair of signal terminals 22 are fixed (fixed by injection molding) in each insulating body 211.

[0041] Each signal terminal 22 includes a terminal fixing portion 221 fixed in the corresponding insulating body 211, a terminal wiring portion 222 extending from one end (upper end) of the terminal fixing portion 221 and exposed outside the insulating body 211 and the conductive housing 1, and a terminal docking portion 223 extending from the other end (lower end) of the terminal fixing portion 221 and exposed outside the insulating body 211 and the conductive housing 1. The terminal fixing portion 221 is in a straight strip shape and extends in the up-down direction. The terminal wiring portion 222 extends in the front-rear direction and forms a planar contact surface 2221 above. The contact surface 2221 is not lower than the upper surface of the insulating body 211, and the contact surface 2221 is correspondingly electrically connected to the cable 3. The terminal wiring portion 222 is vertically extended backward from the upper end of the terminal fixing portion 221. The terminal docking portion 223 extends backward and downward from the lower end of the terminal fixing portion 221. The terminal docking portion 223 is in a cantilever shape and can elastically deform in the up-down direction. Each terminal docking portion 223 is formed with a contact portion 2231 for crimping with the circuit board.

[0042] In this application, the terminal connection parts 222 (contact surfaces 2221) of several pairs of signal terminals 22 of the same terminal assembly 2 are arranged in a row in the left-right direction; the contact parts 2231 of several pairs of signal terminals 22 of the same terminal assembly 2 are arranged in a row in the left-right direction. The signal terminals 22 in the two terminal assemblies 2 are arranged in two rows in the front-back direction.

[0043] Please refer to Figure 5 and Figure 6 As shown, in this application, in the up-down direction, the thickness of the insulating body 211 is greater than the thickness of the connecting body 212, and the connecting body 212 is located above the free end of the terminal docking part 223 of the corresponding signal terminal 22.

[0044] Please refer to Figures 2 to 6 , Figure 9 and Figure 10 As shown, in this application, several groups of cables 3 are provided. The several groups of cables 3 are arranged in two rows and correspond to the two terminal assemblies 2 fixed in the conductive housing 1. Each group of the cables 3 includes two signal lines 301 and one ground line 302. During assembly, the two signal lines 301 of each group of cables 3 are respectively electrically connected to the contact surfaces 2221 of a corresponding pair of signal terminals 22, and one ground line 302 is used for electrical connection with the conductive housing 1.

[0045] The support member 4 is made of an insulating material and is generally elongated in the left-right direction. In this application, two support members 4 are provided, and are respectively correspondingly arranged above the two terminal assemblies 2. Each support member 4 is formed with a through hole 41 penetrating at the upper position corresponding to each insulating body 211. The width of the through hole 41 in the left-right direction is greater than the width between the two terminal connection parts 222 of a corresponding pair of signal terminals 22 (as shown in Figures Figure 3 , 4 , 5, and 9, here it refers to the span of the two terminal connection parts 222 in the left-right direction, including the interval distance between the two terminal connection parts 222 and the widths of the two connection parts 222 themselves).

[0046] On the upper surface of the support member 4, a ground line positioning groove 42 extending in the front-back direction is recessed at the front and rear positions of each through hole 41, and the one ground line positioning groove 42 is truncated into two front and rear sections by the through hole 41. On the lower surface of the support member 4, two signal line positioning grooves 43 extending in the front-back direction are recessed at the front and rear positions of each through hole 41, and a rib-shaped signal line partition wall 431 extending in the front-back direction is formed in the middle of the two signal line positioning grooves 43. Each signal line positioning groove 43 and the signal line partition wall 431 are truncated into two front and rear sections by the through hole 41. The signal line positioning grooves 43 and the terminal connection parts 222 of the corresponding signal terminals 22 are arranged in one-to-one correspondence in the front-back direction.

[0047] The two support members 4 are respectively installed above the front bearing surface 111 and the rear bearing surface 112 of the conductive housing 1, and are correspondingly located above the two terminal assemblies 2. The support member 4 at the front end is limited in the front-rear direction by the front limiting wall 13 and the limiting bump 144. The support member 4 at the rear end is limited in the front-rear direction by the rear limiting wall 14 and the rear row cable dividing portion 143.

[0048] In this application, several insulating bodies 211 of the same terminal assembly 2 protrude upward above the corresponding bearing surfaces (the front bearing surface 111 and the rear bearing surface 112). The lower surface of the support member 4 is formed with protruding positioning posts 44 that protrude into the gap formed between the corresponding two insulating bodies 211 to realize the left-right direction limitation of the support member 4. Of course, in other embodiments, the left-right direction limitation of the support member 4 can also be directly achieved by the conductive housing 1. For example, a limiting structure (not shown, which can be a matching manner of a convex block and a groove or others) is formed on the surface where the support member 4 is docked with the conductive housing 1, and the upper surface of the insulating body 211 is designed to be flush with the corresponding bearing surfaces (the front bearing surface 111 and the rear bearing surface 112).

[0049] The two signal lines 301 of each group of cables 3 are limited in the two signal line positioning grooves 43 of the corresponding support member 4, and are separated by the signal line partition wall 431 in the left-right direction. The signal lines 301 are correspondingly welded and fixed to the terminal connection portions 222 of the signal terminals 22. The ground lines 302 of each group of cables 3 are correspondingly limited in the ground line positioning grooves 42, and the free ends of the ground lines 302 protrude into the front limiting groove 131 of the conductive housing 1 and are electrically connected to the conductive housing 1 through welding.

[0050] Please refer to Figures 1 to 8 As shown, the grounding member 5 is formed by stamping and bending a metal plate, and includes a main body plate 51 and limiting plates 52 formed by bending and extending upward from the front and rear direction edges of the main body plate 51 respectively. The grounding member 5 is assembled and fixed to the lower surface of the conductive housing 1. The main body portion 51 is formed with a cross beam portion 511 located between the two rows of terminal docking portions 223 and an elastic portion 512 located between the terminal docking portions 223 of two pairs of adjacent signal terminals 22 in the left-right direction. The extending direction of the elastic portion 712 is the same as that of the terminal docking portion 223, and it is also in a cantilever structure. The grounding member 5 is used to achieve better grounding and the shielding effect between signal terminals.

[0051] Please refer to Figures 1 to 8 As shown, the outer mold member 6 is formed by injection molding with an insulating material. The outer mold member 6 covers the upper surface, front surface and rear surface of the main body portion 11 of the conductive housing 1 to achieve the insulation protection effect.

[0052] In this application, by providing the support member 4, shunt limiting is achieved for the signal line 301 and the ground line 302 of the cable 3, preventing the risk of offset short circuit between the ground line 302 and the signal line 301 during the production process.

[0053] The above embodiments are only used to illustrate the technical solutions of this application and not to limit them. Although this 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 this application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of this application.

[0054] The above is only a partial implementation manner of this application, not all implementation manners. Any equivalent changes made by those of ordinary skill in the art to the technical solutions of this application by reading the specification of this application are covered by the claims of this application.

Claims

1. A high-speed electrical connector, comprising a conductive housing provided with a main body portion and a terminal assembly fixed to the main body portion. The terminal assembly includes an insulating member and a plurality of pairs of signal terminals arranged in a row and fixed within the insulating member. Each of the signal terminals includes a terminal fixing portion fixed within the insulating member, a terminal wiring portion extending from the terminal fixing portion and protruding upward out of the insulating member and the conductive housing, and a terminal docking portion extending from the terminal fixing portion and protruding downward out of the insulating member and the conductive housing. The terminal docking portion is correspondingly electrically connected to a circuit board. It is characterized in that: The high-speed electrical connector further includes a plurality of groups of cables and a bracket member. The bracket member is disposed on the insulating member and is located above the terminal wiring portion. Each group of the cables includes a signal line and a ground line. The bracket member correspondingly spaces apart the signal line and the ground line of each group of cables. The signal line is pressed below the bracket member and is electrically connected to the terminal wiring portion of the corresponding signal terminal, and the ground line is carried above the bracket member; At the front position of the terminal assembly, the conductive housing protrudes upward to form a front limiting wall extending in the left-right direction. The upper surface of the front limiting wall is recessed downward to form a front limiting groove. The free end of the ground line extends forward and is limited within the front limiting groove and is electrically connected to the conductive housing; The bracket member spaces apart the ground line and the signal line in the up-down direction; The electrical connection position between the ground line and the conductive housing is offset in the front-back direction from the electrical connection position between the signal line and the corresponding terminal wiring portion; The bracket member is formed with a through hole corresponding to the position above the terminal wiring portion. The width of the through hole in the left-right direction is greater than the width between the two terminal wiring portions of a corresponding pair of signal terminals. The signal line and the terminal wiring portion of the signal terminal protrude upward from the through hole.

2. The high-speed electrical connector according to claim 1, characterized in that: The terminal wiring portion protrudes out of the insulating member and the metal housing from above the insulating member, and the terminal docking portion protrudes out of the insulating member and the metal housing from below the insulating member.

3. The high-speed electrical connector according to claim 1, characterized in that: It further includes an outer mold member. The outer mold member is fixed to the conductive housing and covers at least the portion where the signal line is electrically connected to the terminal wiring portion and the portion where the ground terminal contacts the conductive housing.

4. The high-speed electrical connector according to claim 1, characterized in that: The main body portion of the conductive housing is formed with a terminal module receiving cavity penetrating in the up-down direction. The terminal assembly is assembled into the terminal module receiving cavity in the up-down direction.

5. The high-speed electrical connector according to claim 4, characterized in that: There are a plurality of the terminal module receiving cavities. The plurality of terminal module receiving cavities are arranged in a row along the left-right direction. The periphery of each terminal module receiving cavity is shielded by the conductive housing. The insulating member includes a plurality of insulating bodies. The plurality of insulating bodies are arranged in a row along the left-right direction. Each insulating body is correspondingly assembled and received in the terminal module receiving cavity. Two of the signal terminals are fixed within each insulating body.

6. The high-speed electrical connector according to claim 5, wherein: A communication groove is formed by recessing the lower surface of the conductive housing, and the communication groove locally communicates a plurality of terminal module receiving cavities arranged in a row. The insulating member includes a connecting body that integrally connects a plurality of insulating bodies arranged in a row. The insulating member is assembled and fixed into the conductive housing from bottom to top, and the connecting body is correspondingly received in the communication groove.

7. The high-speed electrical connector according to claim 1, wherein: A plurality of ground wire positioning grooves are formed by recessing the upper surface of the bracket member, and a plurality of signal wire positioning grooves are formed by recessing the lower surface of the bracket member. The ground wire of the cable is correspondingly limited in the ground wire positioning groove, and the signal wire of the cable is correspondingly limited in the signal wire positioning groove.

8. The high-speed electrical connector according to claim 7, wherein: The ground wire positioning groove is truncated into two sections, front and rear, by a through hole. A signal wire partition wall in the shape of a rib extending in the front-rear direction is formed between the two signal wire positioning grooves. Each of the signal wire positioning grooves and the signal wire partition wall is truncated into two sections, front and rear, by the through hole. The signal wire positioning grooves and the terminal connection portions of the corresponding signal terminals are arranged in one-to-one correspondence in the front-rear direction.

9. The high-speed electrical connector according to claim 4, wherein: A plurality of cable dividing portions arranged in the left-right direction are formed by protruding upward from the rear position of the bracket member of the conductive housing, and each group of cables is correspondingly limited between two adjacent cable dividing portions.

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