Electrical connector

Abstract

An electric connector comprises a housing with a mating slot at a front end, a first terminal module, a first insulating body holding the first terminal module and holding the first terminal module in the housing, and a first metal connecting piece, the first terminal module comprises a plurality of first ground terminals and a plurality of first signal terminal pairs arranged along a transverse direction, the first ground terminals are provided with locking holes, the first metal connecting piece is provided with a base body extending along the transverse direction and a plurality of buckle parts extending from the base body to be inserted into the locking holes to connect the plurality of first ground terminals in series, and the buckle parts are composed of a pair of elastic arms. In the utility model, the first metal connecting piece is connected with the locking holes of the ground terminals through the buckle parts to connect the plurality of first ground terminals in series, so that the electric connector is low in manufacturing cost and the series connection of the plurality of first ground terminals is reliably and stably ensured.

Description

Technical Field

[0001] This application relates to an electrical connector, and more particularly to an electrical connector with excellent high-frequency performance. Background Technology

[0002] Existing electrical connectors include a terminal module, a first insulating body that holds the terminal module, a housing with mating grooves for the first insulating body to be inserted, and metal connectors. The terminal module includes several grounding terminals and signal terminal pairs. The metal connectors have a base and connecting portions extending from the base that are electrically connected to the several grounding terminals. The connecting portions are typically soldered to the grounding terminals to achieve series grounding between the grounding terminals. However, the method of connecting several connecting portions to several grounding terminals by soldering is costly and detrimental to the product's market competitiveness.

[0003] Therefore, it is desirable to design an improved electrical connector. Utility Model Content

[0004] The technical problem to be solved by this application is to provide an electrical connector whose grounding terminals are connected in series and share a common ground, and which has low manufacturing cost.

[0005] To solve the above problems, this application can adopt the following technical solution: an electrical connector, including a housing with a mating groove at the front end, a first terminal module, a first insulating body for holding the first terminal module and holding the first terminal module to the housing, and a first metal connector, the first terminal module including a plurality of first grounding terminals and a plurality of first signal terminal pairs arranged in a transverse direction, the first grounding terminals being provided with locking holes, the first metal connector being provided with a base extending in a transverse direction and a plurality of latching portions extending from the base and inserted into the locking holes to connect the plurality of first grounding terminals in series, the latching portions being composed of a pair of elastic arms.

[0006] Furthermore, the pair of elastic arms of the latching portion are staggered from each other in the direction of elastic deformation, and the first metal connector is provided with multiple rows of latching portions arranged in the transverse direction in the front-back direction.

[0007] Furthermore, the substrate is a plate disposed on one side of the first terminal module, and several of the buckle portions are formed by tearing and bending the substrate toward the side where the first terminal module is located.

[0008] Furthermore, the pair of elastic arms of the buckle are arranged in the lateral direction and are staggered with each other in the front-back direction perpendicular to the lateral direction.

[0009] Furthermore, a groove is recessed on the outer side of the elastic arm in the lateral direction. When the buckle is inserted into the locking hole, the plate surface of the first grounding terminal in the thickness direction is embedded in the groove.

[0010] Furthermore, the free end of the elastic arm is provided with a guide surface on the outer side in the lateral direction to guide the elastic arm into the locking hole.

[0011] Furthermore, the first terminal module includes a first fixing part fixed to the first insulating body, a first elastic contact arm extending forward from one end of the first fixing part and protruding into the mating groove, and a first extension part having a first contact leg extending out of the first insulating body from the other end of the first fixing part. The first fixing part of the first grounding terminal is provided with the locking hole. The first insulating body is provided with a clearance groove at least at the corresponding location of the locking hole for the buckle part to be inserted into the locking hole. The first insulating body is provided with a fixing hole, and the first metal connector is provided with a retaining piece inserted and fixed in the fixing hole.

[0012] Furthermore, the pair of elastic arms of the latch portion are V-shaped, opening laterally outward from each other before being inserted into the locking hole.

[0013] Furthermore, the electrical connector also includes a second terminal module disposed below the first terminal module, which is composed of a plurality of second grounding terminals and a plurality of second signal terminal pairs arranged in the lateral direction; a second insulating body that holds the second terminal module and holds the second terminal module to the housing; and a second metal connector that connects the plurality of second grounding terminals in series. The first insulating body and the second insulating body are stacked in the vertical direction and clamp the base of the first metal connector. The second metal connector includes a base disposed below the second terminal module and a connecting portion extending from the base that connects the plurality of second grounding terminals in series.

[0014] Furthermore, the first terminal module includes a first fixing part fixed to the first insulating body, a first elastic contact arm extending forward from one end of the first fixing part and protruding into the mating groove, and a first extension part extending from the other end of the first fixing part out of the end of the first insulating body and having a first contact portion. The second terminal module includes a second fixing part fixed to the second insulating body, a second elastic contact arm extending forward from one end of the second fixing part and protruding into the mating groove, and a second extension part extending from the other end of the second fixing part out of the end of the second insulating body and having a second contact portion. The second extension part abuts forward against the lower wall provided by the housing. The first extension part is located at the rear end of the second extension part and a first positioning block fixed to the housing is sandwiched between the two. The rear end of the first extension part is blocked by the second positioning block fixed to the housing.

[0015] Compared with the prior art, in the present application, the first metal connecting member is provided with a plurality of snap-fit portions, each snap-fit portion has a pair of elastic arms, and the first ground terminal is provided with a locking hole for the insertion of the snap-fit portion. By inserting the elastic arms into the first ground terminal, while ensuring reliable and stable series connection of the plurality of first ground terminals, the manufacturing cost of the electrical connector can also be effectively reduced. Description of Drawings

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

[0017] Figure 2 is an exploded perspective view of the electrical connector of the utility model.

[0018] Figure 3 is Figure 2 an exploded perspective view from another perspective.

[0019] Figure 4 is another exploded perspective view of the electrical connector of the utility model.

[0020] Figure 5 is a perspective view of the first terminal module and the first metal connecting member of the electrical connector of the utility model before assembly.

[0021] Figure 6 is an assembled perspective view of the first terminal module and the first metal connecting member of the electrical connector of the utility model.

[0022] Figure 7 is Figure 6 a perspective view from another perspective.

[0023] Figure 8 is an assembled perspective view of part of the terminals of the first terminal module and the first metal connecting member of the electrical connector of the utility model.

[0024] Figure 9 is Figure 6 a schematic diagram of the first metal connecting member in Detailed Description of the Embodiments

[0025] The following specific embodiments will further illustrate the present application in conjunction with the above drawings.

[0026] Referring Figures 1 to 9 as shown in the figures, the present application discloses an electrical connector 100, which comprises a first terminal module 1, a first insulating body 2 holding the first terminal module 1, a second terminal module 3, a second insulating body 4 holding the second terminal module 3, a first metal connecting member 5, a second metal connecting member 6 and a housing 7. The front end of the housing 7 is provided with a mating groove 71, and the rear end thereof is provided with an assembly cavity 72 communicating with the mating groove 71. After the first insulating body 2 and the second insulating body 4 are stacked in the up-down direction, they are loaded forward from the assembly cavity 72 and held and fixed in the housing 7.

[0027] The first terminal module 1 includes a plurality of first grounding terminals 1a and a plurality of first signal terminal pairs 1b arranged in a transverse direction perpendicular to the vertical and horizontal directions. The first metal connector 5 is used to connect the plurality of first grounding terminals 1a in series to achieve a common ground. In the first terminal module 1, the plurality of first grounding terminals 1a are provided with locking holes 101. The metal connector 5 is provided with a plate-shaped base 51 extending laterally and a plurality of latching parts 52 extending from the base 51 to the plurality of locking holes 101. The plurality of latching parts 52 are respectively inserted into the locking holes 101 of the plurality of first grounding terminals 1a, thereby connecting the plurality of first grounding terminals 1a in series to achieve a common ground.

[0028] The base 51 is a plate disposed on one side of the first terminal module 1. A plurality of the latching portions 52 are formed by tearing and bending the base 51 toward the side where the first terminal module 1 is located. Each latching portion 52 consists of a pair of elastic arms 521 arranged laterally and spaced apart from each other in the lateral direction. Figure 5 As shown, when the first metal connector 5 is not assembled to the first terminal module 1, that is, before the latching part 52 is inserted into the locking hole 101 of the first grounding terminal 1a, the pair of elastic arms 521 of the latching part 52 are preferably V-shaped and laterally outwardly open to each other in normal condition. Figures 6 to 9 As shown, during the process of inserting the pair of elastic arms 521 of the latching part 52 into the locking hole 101, the pair of elastic arms 521 will turn towards each other, and after being assembled in place, the pair of elastic arms 521 will be reliably fixed in the locking hole 101, effectively ensuring the reliability of the electrical connection between the latching part 52 and the first grounding terminal 1a. Of course, under normal circumstances, the pair of elastic arms can also be arranged vertically and horizontally separated, but compared with the pair of elastic arms that are outwardly flared in a V-shape, their stability in fixing to the first grounding terminal is reduced.

[0029] In order to prevent the inner sides of the pair of elastic arms 521 of the latching part 52 from colliding with each other in the lateral direction during the insertion of the latching part 52 into the locking hole 101, the two elastic arms 521 of the latching part 52 are not opposite each other in the elastic deformation direction (lateral direction) but are staggered in the front-back direction. This ensures that the inner sides of the pair of elastic arms 521 will not collide in the lateral direction during the insertion of the latching part 52 into the locking hole 101. That is, when the distance between the pair of elastic arms 521 is less than the amount of deformation of the pair of elastic arms 521 in the direction towards each other when inserted into the locking hole 101, the inner sides of the pair of elastic arms 521 can overlap each other in the lateral direction, so that the latching part 52 can be inserted into the locking hole 101 and reliably fixed to the first grounding terminal 1a. The pair of elastic arms 521 of the latching part 52 have recessed grooves 5211 on their outer sides in the lateral direction. When the latching part 52 is inserted into the locking hole 101, the plate surface of the first grounding terminal 1a in the thickness direction is embedded in the grooves 5211, thereby effectively preventing the latching part 52 from disengaging from the locking hole 101 after insertion. In addition, the free ends of the pair of elastic arms 521 are provided with inclined guide surfaces 5212 on their outer sides in the lateral direction. The guide surfaces 5212 are used to guide the elastic arms 521 so that the latching part 52 can be inserted into the locking hole 101.

[0030] Specifically, the first terminal module 1 includes a first fixing part 11 fixed to the first insulating body 2, a first elastic contact arm 12 extending forward from one end of the first fixing part 11 and protruding into the mating groove 71, and a first extension part 13 extending from the other end of the first fixing part 11 and having a first contact portion 131, the first contact portion 131 being disposed at the end of the first extension part 13. The first fixing part 11 of the first grounding terminal 1a is provided with the locking hole 101, and the first insulating body 2 is provided with a relief groove 21 at least at the corresponding location of the locking hole 101 for the latching part 52 to be inserted into the locking hole 101. The first metal connector 5 is further provided with retaining pieces 511 extending from both sides of the base 51. Correspondingly, the first insulating body 2 has fixing holes 22 on both sides of its lateral direction. In the vertical direction, the base 51 abuts against one side of the first insulating body 2, and the retaining pieces 511 are inserted and fixed in the fixing holes 22. The first insulating body 2 and the second insulating body 4 are stacked and clamp the base 51, thereby reliably holding the first metal connector 5 to the first insulating body 2. In this utility model, the first metal connector 5 is provided with multiple rows of latching portions 52 arranged in the lateral direction in the front-back direction. That is, the first metal connector 5 is provided with latching portions 52 at both the first fixing portion 11 and the first extension portion 13, and the first fixing portion 11 and the first extension portion 13 are provided with locking holes 101 for the latching portions 52 to be inserted.

[0031] The second terminal module 3 is disposed below the first terminal module 1. The second terminal module 3 includes a plurality of second grounding terminals 3a and a plurality of second signal terminal pairs 3b arranged in a lateral direction. The second metal connector 6 is used to connect the plurality of second grounding terminals 3b in series to achieve a common ground. The second metal connector 6 includes a plate-shaped base 61 extending in a lateral direction disposed below the second terminal module 3 and a connecting portion 62 extending from the base 61 and welded to the plurality of second grounding terminals 3a to connect the plurality of second grounding terminals 3a in series. The lateral sides of the base 61 extend to form retaining pieces 611 with retaining holes 6110, and the lateral sides of the second insulating body 4 protrude to form retaining blocks 41 that engage with the retaining holes 6110 of the retaining pieces 6111. It should be noted that the second metal connector 6 is connected to the second grounding terminal 3a by welding the connecting part 62 to the second grounding terminal 3a instead of by snap-fitting as the first metal connector 5. This is due to the size requirements of the electrical connector. Therefore, if there are no special size requirements for the electrical connector, the second metal connector 6 can also be connected to the second grounding terminal 3a by snap-fitting.

[0032] The second terminal module 3 includes a second fixing part 31 fixed to the second insulating body 4, a second elastic contact arm 32 extending forward from one end of the second fixing part 31 and protruding into the mating groove 71, and a second extension part 33 extending from the other end of the second fixing part 31 and extending out of the end of the second insulating body 4, having a second joint part 331. The housing 7 includes an upper wall 701, a lower wall 702, and a pair of side walls 703 connecting the upper wall 701 and the lower wall 702. The pair of side walls 703 are recessed to form a first groove 7031 for inserting and holding the lateral sides of the first insulating body 2, and a second groove 7032 disposed below the first groove 7031 for inserting and holding the lateral sides of the second insulating body 4. The first extension 13 of the first terminal module 1 has a first vertical section 130 extending in the vertical direction, and the second extension 33 of the second terminal module 3 has a second vertical section 330 extending in the vertical direction in front of the first vertical section 130. The second vertical section 330 of the second extension 330 abuts against the rear end of the lower wall 702. A first positioning block 8 is held between the first vertical section 130 and the second vertical section 330. A second positioning block 9 is provided at the rear end of the first vertical section 130 to block the first vertical section forward. A pair of side walls 703 of the housing 7 are recessed to form a third groove 7033. The first positioning block 8 and the second positioning block 9 are fixed to the third groove 7033 on their lateral sides.

[0033] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. An electrical connector, comprising a housing with a mating groove at its front end, a first terminal module, a first insulating body for holding and securing the first terminal module to the housing, and a first metal connector, wherein the first terminal module includes a plurality of first grounding terminals and a plurality of first signal terminal pairs arranged in a transverse direction, characterized in that: The first grounding terminal is provided with a locking hole, and the first metal connector is provided with a base extending laterally and a plurality of latching parts extending from the base and inserted into the locking hole to connect a plurality of the first grounding terminals in series. The latching parts are composed of a pair of elastic arms.

2. The electrical connector as described in claim 1, characterized in that: The pair of elastic arms of the buckle portion are staggered from each other in the direction of elastic deformation, and the first metal connector has multiple rows of buckle portions arranged in the transverse direction in the front-back direction.

3. The electrical connector as described in claim 1, characterized in that: The substrate is a plate disposed on one side of the first terminal module, and several of the buckle parts are formed by tearing and bending the substrate toward the side where the first terminal module is located.

4. The electrical connector as described in claim 3, characterized in that: The pair of elastic arms of the buckle are arranged in the lateral direction and are offset from each other in the front-back direction perpendicular to the lateral direction.

5. The electrical connector as claimed in claim 1, characterized in that: A slot is recessed on the outer side of the elastic arm in the lateral direction. When the buckle is inserted into the locking hole, the plate surface of the first grounding terminal in the thickness direction is embedded in the slot.

6. The electrical connector as claimed in claim 1, characterized in that: The free end of the elastic arm has a guide surface on its outer side in the lateral direction to guide the elastic arm into the locking hole.

7. The electrical connector as claimed in claim 1, characterized in that: The first terminal module includes a first fixing part fixed to the first insulating body, a first elastic contact arm extending forward from one end of the first fixing part and protruding into the mating groove, and a first extension part having a first contact leg extending from the other end of the first fixing part out of the first insulating body. The first fixing part of the first grounding terminal is provided with the locking hole. The first insulating body is provided with a clearance groove at least at the corresponding location of the locking hole for the buckle part to be inserted into the locking hole. The first insulating body is provided with a fixing hole, and the first metal connector is provided with a retaining piece inserted and fixed in the fixing hole.

8. The electrical connector as claimed in claim 1, characterized in that: The pair of elastic arms of the buckle portion are in a V-shape that opens laterally outward before being inserted into the locking hole.

9. The electrical connector as claimed in claim 1, characterized in that: The electrical connector further includes a second terminal module disposed below the first terminal module, which is composed of a plurality of second ground terminals and a plurality of second signal terminal pairs arranged in the lateral direction; a second insulating body that holds the second terminal module and holds the second terminal module to the housing; and a second metal connector that connects the plurality of second ground terminals in series. The first insulating body and the second insulating body are stacked in the vertical direction and clamp the base of the first metal connector. The second metal connector includes a base disposed below the second terminal module and a connecting portion extending from the base that connects the plurality of second ground terminals in series.

10. The electrical connector as claimed in claim 9, characterized in that: The first terminal module includes a first fixing part fixed to the first insulating body, a first elastic contact arm extending forward from one end of the first fixing part and protruding into the mating groove, and a first extension part extending from the other end of the first fixing part out of the end of the first insulating body and having a first contact portion. The second terminal module includes a second fixing part fixed to the second insulating body, a second elastic contact arm extending forward from one end of the second fixing part and protruding into the mating groove, and a second extension part extending from the other end of the second fixing part out of the end of the second insulating body and having a second contact portion. The second extension part abuts forward against the lower wall of the housing. The first extension part is located at the rear end of the second extension part and a first positioning block fixed to the housing is sandwiched between the two. The rear end of the first extension part is blocked by the second positioning block fixed to the housing.

Images