Electrical connectors

Abstract

An electrical connector includes at least two terminal modules and a reinforcing plate. Each terminal module includes an insulator and a row of terminals arranged along a first direction. The insulator has a front end face, and the terminals include a fixing portion fixed to the insulator and a contact portion extending from the front end face of the insulator. The two insulators are assembled together along a second direction, with the first direction perpendicular to the second direction. The connector is characterized in that each insulator has multiple protrusions extending from its front end face, and the reinforcing plate has two sets of holes. The reinforcing plate is attached to the front end face of the insulator, and the protrusions are accommodated in corresponding holes. The holes and protrusions are tightly matched with each other in the second direction. In this invention, the two terminal modules utilize the tight matching of the protrusions and the holes of the reinforcing plate in the second direction to tighten and limit the insulator, preventing the risk of the insulator opening laterally along its assembly direction due to external forces such as the insertion of an electronic card.

Description

Technical Field

[0001] This invention relates to an electrical connector. Background Technology

[0002] CN217881977U discloses an electrical connector with a slot at its front end for inserting a module to form an electrical connection and achieve signal transmission. A row of terminals is fixed to an insulator by injection molding to form a terminal module. Two insulators are assembled together vertically and then inserted forward into the insulating body, thus forming the electrical connector. However, this assembly method has a potential risk of insufficient overall assembly strength of the electrical connector in practical use.

[0003] Therefore, it is necessary to provide an improved electrical connector. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an electrical connector that can improve the assembly strength of the entire electrical connector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electrical connector, comprising at least two terminal modules and a reinforcing plate; each terminal module includes an insulator and a row of terminals arranged along a first direction, the insulator having a front end face, the terminals including a fixing portion fixed to the insulator and a contact portion extending out of the front end face of the insulator, the two insulators being assembled together along a second direction, the first direction being perpendicular to the second direction; each insulator having a plurality of protrusions extending from its front end face, the reinforcing plate having two sets of holes, the reinforcing plate being attached to the front end face of the insulator, the protrusions being accommodated in corresponding holes, the holes and the protrusions being tightly matched to each other in the second direction.

[0006] Compared with the prior art, in this invention, the two terminal modules use the protrusions on them and the holes of the reinforcing plate to tightly match in the second direction to tighten and limit the insulator, preventing the risk of the insulator opening laterally along its assembly direction due to external forces such as the insertion of electronic cards. Attached Figure Description

[0007] Figure 1 This is a perspective view of an electrical connector according to an embodiment of the present invention.

[0008] Figure 2 yes Figure 1 A three-dimensional view of the insulating body from another angle.

[0009] Figure 3 yes Figure 1 A 3D view of the middle terminal module assembly.

[0010] Figure 4 yes Figure 3 Stereogram from another angle.

[0011] Figure 5 is Figure 4 exploded stereogram of

[0012] Figure 6 is Figure 5 further exploded stereogram of

[0013] Figure 7 is Figure 5 sectional view along the dashed line A - A

[0014] Figure 8 is Figure 5 sectional view along the dashed line B - B

[0015] Explanation of component symbols: Electrical connector 100 Insulating body 10, docking groove 11, receiving groove 12, positioning post 13 Terminal module 20, terminal module assembly 20A, Insulator 21, front end face 211, convex post 212, L - shaped arm 213, first part 2131, second part 2132 Fixing post 214 Terminal 22, signal terminal 22S, ground terminal 2SG Contact part 221, fixing part 222, connecting part 223 Additive part 24, horizontal bar part 241, vertical bar part 242, positioning hole 2421 Reinforcement plate 30, hole 31, outer edge 311, inner edge 312 Intermediate part 40, fixing hole 41 Docking direction X - X First direction Y - Y Second direction Z - Z. Specific embodiments

[0016] To better understand the purpose, structure, features, and functions of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Refer Figure 1 As shown, the present invention is an electrical connector 100, which is used for a docking electronic card to be inserted along the docking direction X - X to establish an electrical connection, or for a docking connector to be inserted to establish an electrical connection. The electrical connector 100 at least includes two terminal modules 20 and a reinforcement plate 30.

[0018] Refer Figure 1-8As shown, each terminal module 20 includes an insulator 21 and a row of terminals 22 arranged along a first direction YY. The insulator 21 has a front end face 211, and the terminal 22 includes a fixing part 222 fixed to the insulator 21 and a contact part 221 extending out of the front end face 211 of the insulator 21. Two insulators 21 are assembled together along a second direction ZZ, with the first direction YY and the second direction ZZ perpendicular to each other. Each insulator 21 has a plurality of protrusions 212 protruding from its front end face 211. The reinforcing plate 30 has two sets of holes 31. The reinforcing plate 30 is attached to the front end face 211 of the insulator 21, and the protrusions 212 are accommodated in the corresponding holes 31. The holes 31 and the protrusions 212 are tightly matched with each other in the second direction ZZ.

[0019] In this invention, the two terminal modules 20 utilize the tight matching of their protrusions 212 and the holes 31 of the reinforcing plate 30 in the second direction ZZ to tighten and limit the insulator 21, preventing the insulator 21 from opening laterally along its assembly direction under the action of external forces such as the insertion of electronic cards.

[0020] In an optimized configuration, each hole 31 has an outer edge 311 and an inner edge 312. The outer edge 311 fits tightly with the protrusion 212, and the inner edge 312 is spaced a certain distance from the protrusion 212. Figure 7 The enlarged view clearly shows the structure. Thus, the reinforcing plate 30 controls the inner and outer edge structures of the hole 31 to achieve its matching with the protruding post 212, thus achieving a tightening effect. It can be seen that its manufacturing method is simple.

[0021] The optimized reinforcement plate 30 is a metal plate. The metal plate utilizes the flexibility of metal to achieve a tensioning effect.

[0022] In this embodiment, the electrical connector 100 includes an intermediate member 40, and two insulators 21 are respectively fixed to opposite sides of the intermediate member 40 along the second direction ZZ. In other embodiments, the two insulators 21 can be directly fixed to each other.

[0023] In the optimized configuration, the intermediate component 40 has multiple fixing holes 41 on opposite sides, and each insulator 21 has multiple fixing posts 214 protruding along the second direction ZZ. The fixing posts 214 are inserted into and fixed in the corresponding fixing holes 41. The reinforcing plate 30 spans the intermediate component 40. The fixing holes 41 and fixing posts 214 facilitate preliminary positioning and fixing.

[0024] In the optimized form, the insulator 21 is provided with a plurality of L-shaped arms 213. The L-shaped arms 213 include a first part 2131 extending from the insulator 21 along the second direction ZZ and a second part 2132 extending forward from the first part 2131. The front end of the second part 2132 forms the protrusion 212, and the intermediate member 40 abuts against the first part 2131.

[0025] In this embodiment, the contact portion 221 has an elastic arm structure, and the reinforcing plate 30 overlaps with the contact portion 221 when viewed from front to back. After the two insulators 21 are assembled, the reinforcing plate 30 is inserted between the two rows of terminals 22 along the first direction YY to form a terminal module assembly 20A; then it is attached to the front end face 211 of the insulator 21.

[0026] In this embodiment, each terminal 22 includes a pin portion 223 extending from the fixing portion 222 to the insulator 21. The pin portion 223 is an elastic arm structure used to straddle a circuit board, forming a straddle mounting method.

[0027] In this embodiment, the electrical connector 100 includes two high dielectric constant attachments 24. Each attachment 24 includes a horizontal strip 241 and multiple vertical strips 242. The horizontal strip 241 is fixed to the outside of the corresponding insulator 21. A row of terminals 22 includes multiple differential terminal pairs and a ground terminal 22G located outside each differential terminal pair. Each differential terminal pair includes two adjacent signal terminals 22S. Each vertical strip 242 is aligned with the contact portion 221 of the corresponding differential terminal pair in the first direction YY, thereby improving the transmission performance of the differential terminal pair.

[0028] In this embodiment, a grounding element 50 is attached to the inner side of each insulator 21, and the grounding finger 51 extending from the grounding element presses against the grounding terminal 22G to improve the transmission performance of the differential terminal pair.

[0029] In the optimized configuration, the insulating body 10 is provided with a positioning post 13 that protrudes rearward into the receiving groove 12, and the vertical strip 242 is provided with a positioning hole 2421, wherein the positioning post 13 is inserted into and fixed in the positioning hole 2421.

[0030] The above are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the present invention should still fall within the scope of this patent.

Claims

1. An electrical connector, comprising at least two terminal modules and a reinforcing plate; characterized in that, Each terminal module includes an insulator and a row of terminals arranged along a first direction. The insulator has a front end face, and the terminals include a fixing part fixed to the insulator and a contact part extending out of the front end face of the insulator. Two insulators are assembled together along a second direction, wherein the first direction and the second direction are perpendicular to each other. The insulator is characterized in that each insulator has a plurality of protrusions extending from its front end face, the reinforcing plate has two sets of holes, the reinforcing plate is attached to the front end face of the insulator, and the protrusions are accommodated in corresponding holes. The holes and the protrusions are tightly matched to each other in the second direction.

2. The electrical connector as described in claim 1, characterized in that: Each of the holes has an outer edge and an inner edge, the outer edge being closely matched with the protrusion, and the inner edge being spaced a certain distance from the protrusion.

3. The electrical connector as described in claim 1, characterized in that: The reinforcing plate is a metal plate.

4. The electrical connector as described in claim 1, characterized in that: The electrical connector includes an intermediate component, and the two insulators are respectively fixed to opposite sides of the intermediate component along the second direction.

5. The electrical connector as described in claim 4, characterized in that: The intermediate component has multiple fixing holes on opposite sides, and each insulator has multiple fixing posts protruding along the second direction. The fixing posts are inserted into and fixed in the corresponding fixing holes. The reinforcing plate spans the intermediate component.

6. The electrical connector as described in claim 5, characterized in that: The insulator is provided with a plurality of L-shaped arms, each L-shaped arm including a first part extending from the insulator along the second direction and a second part extending forward from the first part, the front end of the second part forming the protrusion, and the intermediate member abutting forward against the first part.

7. The electrical connector as claimed in claim 1, characterized in that: The contact portion has an elastic arm structure, and when viewed from front to back, the reinforcing plate overlaps with the contact portion. After the two insulators are assembled, the reinforcing plate is inserted between the two rows of terminals along the first direction and then attached to the front end face of the insulator to form a terminal module assembly.

8. The electrical connector as claimed in claim 7, characterized in that: The electrical connector includes an insulating body with a forward-through mating groove and a receiving cavity located behind the mating groove. The terminal module assembly is inserted from rear to front and fixed in the receiving cavity, and the contact portion protrudes into the mating groove.

9. The electrical connector as claimed in claim 8, characterized in that: The electrical connector includes two high dielectric constant attachments, each of which includes a horizontal bar and a plurality of vertical bars, the horizontal bar being fixed to the outside of a corresponding insulator; The row of terminals includes multiple differential terminal pairs and a ground terminal located outside each differential terminal pair. Each differential terminal pair includes two adjacent signal terminals. The contact portions of each vertical strip and the corresponding differential terminal pair are aligned one-to-one in the first direction.

10. The electrical connector as claimed in claim 9, characterized in that: The insulating body is provided with a positioning post that protrudes rearward into the receiving cavity, and the vertical strip is provided with a positioning hole, the positioning post being inserted into and fixed in the positioning hole.

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