CN117353070A

CN117353070A - Terminal module and connector

Info

Publication number: CN117353070A
Application number: CN202311275487.XA
Authority: CN
Inventors: 王占云; 张爽; 申超男; 尹新剑; 马陆飞
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-01-05

Abstract

The invention relates to the technical field of electric connectors, in particular to a terminal module and a connector, wherein the connector comprises a terminal module, the terminal module comprises an insulator and terminals, each terminal comprises a wiring main body fixed on the insulator and a spring piece end extending out of the insulator, the spring piece end is provided with a contact spring piece, the contact spring piece is provided with a contact surface for conducting contact with one side surface of an adaptive contact piece, the contact surfaces of the terminals face to the same side, and the terminals are contacted on one side of the corresponding adaptive contact piece, so that the terminal module is beneficial to simplifying the structure of the terminal, facilitating manufacturing and forming and saving cost.

Description

Terminal module and connector

Technical Field

The invention relates to the technical field of electric connectors, in particular to a terminal module and a connector.

Background

The existing connector comprises an insulating outer fixed shell and a plurality of terminal modules arranged on the outer fixed shell, wherein the terminal modules comprise terminals and insulators which are injection molded to one piece, the terminals are arranged in pairs to form differential pairs, each terminal comprises a spring piece end, a fish eye end and a wiring main body positioned between the spring piece end and the fish eye end, the fish eye end of the connector is a crimping end, and the spring piece end is used for being spliced with an adaptive contact piece. The basic structure of such a connector can be seen in a high-speed orthogonal connector disclosed in chinese patent publication No. CN113690695B, in which a bent mother wafer forms a terminal module, a contact end of a bent mother signal terminal is a spring plate end, the contact end is provided with a clamping portion having an upper clamping piece and a lower clamping piece to clamp the bent male signal terminal, the clamping pieces form contact spring plates of the terminal, and the bent male signal terminal forms an adapting contact. The structure for forming conductive contact through the clamping of the clamping part is characterized in that two opposite clamping pieces are required to be arranged at the spring piece end of the terminal, the two clamping pieces are required to be bent relative to the wiring main body of the terminal, the structure is complex, the manufacturing is inconvenient, and a wider part for forming the clamping part is required to be reserved during cutting, so that the cost is not beneficial to saving.

Disclosure of Invention

The invention aims to provide a terminal module so as to solve the problems that the structure of the spring piece end of the terminal of the current terminal module is complex and the terminal module is inconvenient to manufacture; the present invention is also directed to a connector to solve the above-mentioned problems.

The terminal module of the invention has the technical scheme that:

the terminal module comprises an insulator and terminals, wherein the terminals comprise a wiring main body fixed on the insulator and spring piece ends extending out of the insulator, the spring piece ends are provided with contact spring pieces, the contact spring pieces are provided with contact surfaces for conducting contact with one side surface of an adaptive contact piece, and the contact surfaces of the terminals face to the same side.

The beneficial effects are that: the invention improves on the basis of the terminal module in the prior art, the contact spring sheet at the spring sheet end of the terminal is provided with the contact surface which is in conductive contact with one side surface of the adapting contact piece, so that the contact surface of each terminal faces to the same side, when the adapting contact piece is spliced with the terminal, each terminal contacts on one side of the corresponding adapting contact piece, and compared with the existing structure needing to clamp and contact on two sides of the adapting contact piece, the terminal only needs to be provided with one side contact spring sheet, thereby being beneficial to simplifying the terminal structure, facilitating manufacturing and forming and saving cost.

Further, the contact spring comprises a spring body and at least two support arms which are arranged based on the overhanging of the spring body, and the contact surface is arranged on each support arm.

The beneficial effects are that: the support arms are respectively in conductive contact with the adaptive contact pieces, so that the number of contacts can be increased, the deformability of the contact spring piece is improved, and the conductive contact is reliable.

Further, the support arms are arranged at intervals.

The beneficial effects are that: the support arms are mutually spaced, so that the deformation of the support arms is prevented from being influenced mutually, and the support arms are in contact with the adapting contact piece reliably.

Further, the overhanging directions of the support arms are consistent.

The beneficial effects are that: the contact spring piece is prevented from occupying excessive space, and the support arm is convenient to manufacture and shape.

Further, the overhanging lengths of the arms are the same.

The beneficial effects are that: and each support arm is formed on the contact spring plate conveniently.

Further, the contact spring is provided with a curved arch portion, and the contact surface is provided on the arch portion.

The beneficial effects are that: by the abutment with the adapter contact, wear during the plugging process can be reduced.

Further, the terminals are arranged in pairs to form differential pairs.

The beneficial effects are that: a connector adapted to transmit differential signals.

Further, the wiring main bodies of the two terminals of the differential pair are oppositely arranged along the first direction, the spring sheet ends of the two adjacent differential pairs are opposite at intervals along the second direction perpendicular to the first direction, the joint part of the contact spring sheet and the wiring main body is of a bending structure, and the thickness direction of the contact spring sheet is perpendicular to the thickness direction of the wiring main body.

The beneficial effects are that: the contact surfaces of the two terminals of the differential pair face to the same side by utilizing the bending structure, and the forming is convenient.

Further, the insulator includes two insulating portions arranged in the first direction, the two insulating portions are fixedly connected, and the two terminals of the differential pair are respectively fixed on the two insulating portions.

The beneficial effects are that: the insulator is formed by two parts, and after the two terminals of the differential pair are respectively fixed with the two parts, the two insulating parts are fixedly connected together, so that the manufacturing is convenient.

The connector of the invention has the technical scheme that:

the connector comprises a terminal module, wherein the terminal module comprises an insulator and terminals, the terminals comprise a wiring main body fixed on the insulator and spring piece ends extending out of the insulator, the spring piece ends are provided with contact spring pieces, the contact spring pieces are provided with contact surfaces for conducting contact with one side surface of an adaptive contact piece, and the contact surfaces of the terminals face to the same side.

The beneficial effects are that: the contact spring plate at the spring plate end of the terminal is provided with the contact surface which is in conductive contact with one side surface of the adapting contact piece, so that the contact surface of each terminal faces the same side, when the adapting contact piece is spliced with the terminal, each terminal contacts one side of the corresponding adapting contact piece, and compared with the existing structure requiring clamping contact on two sides of the adapting contact piece, the terminal only needs to be provided with one side contact spring plate, thereby being beneficial to simplifying the terminal structure, facilitating the manufacturing and forming and saving the cost.

Further, the support arms are arranged at intervals.

Further, the overhanging directions of the support arms are consistent.

Further, the overhanging lengths of the arms are the same.

Further, the terminals are arranged in pairs to form differential pairs.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the connector of the present invention;

fig. 2 is a schematic structural view of the terminal module in fig. 1;

fig. 3 is an exploded view of the terminal module of fig. 2;

fig. 4 is a schematic diagram of the front side structure of the conductive buckle in fig. 3;

fig. 5 is a schematic view of a rear side structure of the conductive clip of fig. 3;

FIG. 6 is a schematic view of the partial structure at A in FIG. 5;

FIG. 7 is a schematic view of the partial structure at B of FIG. 6;

FIG. 8 is a rear side angular schematic view of the connector of FIG. 1;

FIG. 9 is a schematic view of the partial structure at C in FIG. 8;

FIG. 10 is a schematic view of the front side view of the connector of FIG. 1;

FIG. 11 is a schematic view of the partial structure at D in FIG. 10;

fig. 12 is a schematic view of the connector of fig. 1 with the insulator removed from the terminal module;

FIG. 13 is a schematic view of the partial structure at E in FIG. 12;

fig. 14 is a schematic diagram showing the installation position relationship between the conductive clip and the terminal in fig. 1;

fig. 15 is a schematic view of the terminal structure in fig. 2.

In the figure: 100. a terminal module; 200. an outer fixing case; 300. a bending region; 1. a conductive buckle plate; 10. a mounting groove; 11. a signal avoidance hole; 12. a fixing groove; 120. a strong mounting bulge; 121. a guide slope; 13. a contact groove; 14. a grounding avoidance hole; 15. a limit groove; 2. a signal terminal; 21. a fish eye end; 22. a spring plate end; 221. a first arm; 222. a second arm; 3. an insulator; 31. an insulating convex portion; 4. a first shielding sheet; 41. a claw; 42. a fixing portion; 43. grounding fish eyes; 5. a second shielding sheet; 51. and (5) spring claws.

Detailed Description

Example 1 of the connector of the present invention:

in this embodiment, the contact surface in conductive contact with one side of the adapting contact piece is arranged on the contact spring piece at the spring piece end of the terminal, so that the contact surface of each terminal faces the same side, when the adapting contact piece is spliced with the terminal, each terminal contacts on one side of the corresponding adapting contact piece, compared with the existing structure that the two sides of the adapting contact piece need to be clamped and contacted, the terminal only needs to be provided with one side contact spring piece, thereby being beneficial to simplifying the terminal structure, facilitating the manufacturing and forming and saving the cost.

As shown in fig. 1 to 15, the connector includes a plurality of terminal modules 100 and an outer fixing case 200 for fixing each terminal module 100, each terminal module 100 is arranged side by side in a left-right direction, the terminal module 100 includes an insulator 3, a signal terminal 2, and a first shielding piece 4, a second shielding piece 5, a thickness direction of the insulator 3 is a left-right direction, the first shielding piece 4 and the second shielding piece 5 are respectively disposed on left and right sides of the insulator 3, the signal terminal 2 and the insulator 3 are fixed together by injection molding, the signal terminal 2 are disposed in pairs to form a differential pair, the signal terminal 2 has a fisheye end 21 and an elastic piece end 22, and a routing body between the fisheye end 21 and the elastic piece end 22, the elastic piece end 22 faces down, the fisheye end 21 faces forward, the fisheye end 21 of the signal terminal 2 is a signal crimping portion, the elastic piece end 22 is used for plugging with a contact of an adapter connector, and the contact of the adapter connector is an adapter contact. The end of the connector provided with the fisheye end 21 constitutes a connector crimping end, the connector crimping end is provided with a conductive pinch plate 1, and the conductive pinch plate 1 is used for conducting shielding sheets of the terminal modules 100 so as to shield the root area of the fisheye end 21 of the signal terminal 2.

The wiring main body of the signal terminal 2 is fixed on the insulator, and the spring piece end 22 extends out of the insulator 3. The spring plate end 22 is provided with a contact spring plate, the contact spring plate comprises a spring plate main body and two support arms which are arranged based on the overhanging of the spring plate main body, the two support arms are a first support arm 221 and a second support arm 222 respectively, and the joint part of the spring plate main body of the contact spring plate and the wiring main body is of a bending structure, so that the thickness direction of the contact spring plate is perpendicular to the thickness direction of the wiring main body. The thickness direction of the contact spring plate is the front-back direction, and the thickness direction of the wiring main body is the left-right direction. The support arms are provided with backward contact surfaces which are used for conducting contact with one side surface of the adapting contact piece, and the contact surfaces of the signal terminals are arranged backward towards the same side, so that contact is formed between the signal terminals and the front side surface of the corresponding adapting contact piece during plugging, and the signal terminals are in single-sided contact with the adapting contact piece, thereby simplifying the terminal structure and saving the cost.

The overhanging directions of the first support arm 221 and the second support arm 222 are consistent, and the first support arm and the second support arm are overhanging downwards, so that the contact spring piece is prevented from occupying excessive space, and the support arm is convenient to manufacture and shape. The first support arm 221 and the second support arm 222 are arranged at intervals, so that the support arms are mutually spaced, deformation of the support arms is avoided from being mutually influenced, and reliable contact between the support arms and the adapting contact piece is facilitated. The overhanging lengths of the support arms are the same, so that the support arms are convenient to manufacture and shape. Each support arm forms elastic conductive contact with the adaptive contact piece respectively, so that the number of contacts can be increased, each support arm of the same signal terminal enables the spring piece end to form a bifurcation structure, and the contact spring piece of the bifurcation structure can improve the deformability of the contact spring piece, thereby being beneficial to reliable conductive contact.

The contact spring of the spring end 22 of the signal terminal 2 is provided with a backward curved bulge, the backward side of the bulge forms a contact surface, the bulge is used for contacting with the adapting contact, and the downward slope of the bulge is used for guiding the insertion of the adapting contact, so that the abrasion in the inserting process can be reduced.

The routing bodies of the two signal terminals of the differential pair of the terminal module 100 are oppositely arranged along the left-right direction, the first direction is the left-right direction, the spring sheet ends 22 of the two adjacent differential pairs are opposite at intervals along the front-rear direction, the second direction is the front-rear direction, and the two spring sheet ends 22 of the same differential pair are opposite left-right. The insulator 3 includes two insulating portions arranged along the left-right direction, the two insulating portions are fixedly connected after being involuted, and two terminals of the differential pair are respectively fixed on the two insulating portions, so that the insulator is formed by the two portions, and after the two terminals of the differential pair are respectively fixed with the two insulating portions, the two insulating portions are fixedly connected together, thereby facilitating the manufacture of the terminal module 100.

The insulating main body of the insulator 3 of the terminal module 100 is provided with an insulating convex part 31 near the edge of the crimping end of the connector, the insulating main body of the insulator 3 comprises main body parts of two insulating parts, the insulating convex parts 31 are in one-to-one correspondence with the differential pairs, the fisheye ends 21 of the signal terminals 2 penetrate out of the insulating convex parts 31, the root parts of the fisheye ends 21 of the signal terminals 2 are provided with bending structures, the areas where the bending structures are located form bending areas 300, and the bending structures of the differential pairs are located in the corresponding insulating convex parts 31.

The first shielding sheet 4 constitutes the conduction shielding sheet, the first shielding sheet 4 includes the main lamellar body and is close to the protruding jack catch 41 of establishing in the edge of connector crimping end of main lamellar body, jack catch 41 constitutes inserted sheet portion, jack catch 41 is the portion of bending of setting up at the main lamellar body edge of first shielding sheet 4, the portion of bending includes the first section and the second section of perpendicular setting, first section and main lamellar body parallel and level and integrative link to each other, the second section constitutes the fixed section, the thickness direction of fixed section is perpendicular to the thickness direction of the main lamellar body of first shielding sheet 4, the second section is buckled towards the direction of insulator 3 relative first section. The fixed segments of the claws 41 are provided with grounding fish eyes 43, the grounding fish eyes 43 form grounding connection parts, gaps between two adjacent insulation convex parts 31 of the terminal module 100 are used for inserting the fixed segments of the corresponding claws 41, and the claws 41 are provided with fixing parts 42 which extend to the insulation convex parts 31 and are opposite to the main sheet bodies of the first shielding sheets 4. The upper and lower sides of the differential pair of the terminal module 100 are provided with claws 41, the orientation of the fisheye holes on the claws 41 is perpendicular to the orientation of the fisheye holes on the signal terminals 2, and the grounding fisheye 43 and the fisheye end 21 of the signal terminals 2 are positioned correspondingly for crimping.

The second shielding sheet 5 comprises a main sheet body and elastic claws 51 arranged at the edge of the main sheet body, which is close to the crimping end of the connector, wherein the elastic claws 51 are hung forwards, the root parts of the elastic claws 51 are bent towards one side of the insulator 3, the elastic claws 51 are positioned at one side of the insulating convex parts 31, which is away from the main sheet body of the first shielding sheet 4, and the elastic claws 51 are in one-to-one correspondence with the differential pairs.

The conductive buckle plates 1 are provided with mounting grooves 10 corresponding to the terminal modules 100 one by one, the mounting grooves 10 are arranged at intervals along the left-right direction, the notch of each mounting groove 10 is backwards, and the mounting grooves 10 extend up and down and are arranged in a penetrating manner up and down so as to be filled with the insulating convex parts 31 of the terminal modules 100. The tank bottom of the installation groove 10 is provided with a signal avoidance hole 11 and a grounding avoidance hole 14, the signal avoidance hole 11 is used for avoiding a fisheye end 21 of the signal terminal 2, the grounding avoidance hole 14 is used for avoiding a grounding fisheye 43 on the first shielding sheet 4, the upper side and the lower side of the signal avoidance hole 11 are both provided with the grounding avoidance hole 14, the conductive buckle plate 1 is further provided with an assembly groove for assembling a claw 41 of the first shielding sheet 4, the assembly groove comprises a limit groove 15 and a fixed groove 12 which are respectively arranged on the tank walls on the left side and the right side of the installation groove 10, the limit groove 15 and the fixed groove 12 respectively form a first groove and a second groove, a first section of the claw 41 stretches into the first groove, a second section stretches across the tank walls on the two sides of the installation groove 10, a fixed part 42 of the second section is arranged in the second groove, and the limit groove 15 and the fixed groove 12 are provided with backward openings for loading corresponding parts of the first shielding sheet 4.

The upper and lower both sides cell wall of fixed slot 12 is equipped with the strong dress arch 120 respectively, and the upper and lower side of fixed portion 42 is gone up the side and is adorned protruding 120 by force and fit by force, and strong dress arch 120 is the part of the cell wall of fitting groove, and two strong dress archs 120 of fixed slot 12 are located fixed portion 42 both sides respectively, utilize strong dress arch 120 and the two lateral surfaces in the fixed portion 42 thickness direction of jack catch 41 to form in close contact, reduce the area of contact of inserted sheet portion and the cell wall of fitting groove, guarantee that the contact is reliable, reduce the friction. The first shielding sheet 4 is made of metal, the conductive pinch plate 1 is made of conductive plastic, and the rigid sheet type clamping jaw 41 is inserted between the two flexible strong mounting protrusions 120, so that the conductive pinch plate 1 and the shielding sheet are in place in a strong manner, and conductive scraps are prevented from being generated. The strong fitting protrusion 120 has a guide slope 121 for guiding the fixing portion 42 into the fixing groove 12, so that the abrasion of the fixing portion 42 to the conductive buckle plate 1 can be reduced. Through set up inserted sheet portion on switching on the shielding piece, set up the assembly groove on electrically conductive buckle to make inserted sheet portion strong dress in the assembly inslot, and make the lateral surface on the thickness direction of inserted sheet portion and the cell wall contact of assembly groove, because inserted sheet portion intensity on the shielding piece is better, thereby be difficult to damage when strong dress, and contact the cell wall of assembly groove through the lateral surface on the thickness direction of inserted sheet portion, be difficult to damage electrically conductive buckle.

The side wall of the groove of the installation groove 10 of the conductive pinch plate 1, which corresponds to the second shielding sheet 5, is also provided with a contact groove 13 into which the spring claw 51 extends, the contact groove 13 is in shape fit with the spring claw 51, the contact groove 13 is provided with a backward opening and a groove bottom surface facing the spring claw 51, when the spring claw 51 of the second shielding sheet 5 is installed in the contact groove 13, the spring claw 51 is clamped between the insulation convex part 31 of the corresponding insulator 3 and the groove bottom surface of the contact groove 13, so that the spring claw 51 is in close contact with the conductive pinch plate 1, and the shielding effect is improved. Since the differential pairs of the terminal modules 100 in this embodiment are arranged in a staggered manner, in order to ensure a compact structure, a notch is formed on the bottom surface of the contact groove 13, and the notch is communicated with the limit groove 15 at the other mounting groove 10, so as to facilitate improvement of the shielding effect.

The two adjacent claws 41 of the first shielding sheet 4 and the groove walls on two opposite sides of the mounting groove 10 enclose a shielding cavity, the thickness of the conductive pinch plate 1 is larger than the length of the bending area 300, and the bending area 300 of the signal terminal 2 is positioned in the shielding cavity of the conductive pinch plate 1, so that electromagnetic interference generated by signal transmission of the bending area 300 is shielded.

Example 2 of the connector in the present invention:

the present embodiment provides a different spring end setting form from embodiment 1, and the difference between this embodiment and embodiment 1 is that the contact spring of the spring end in embodiment 1 includes a spring body and two support arms that are set based on the overhanging of the spring body. In this embodiment, the spring end is not provided with a bifurcation structure, no support arm is provided, and only one spring arm is provided at one spring end.

Example 3 of the connector in the present invention:

this embodiment provides a different arrangement of arms from embodiment 1, which differs from embodiment 1 in that the arms in embodiment 1 are arranged at intervals. In this embodiment, the arms are in contact.

Example 4 of the connector in the present invention:

this embodiment provides a different arm arrangement form from embodiment 1, which differs from embodiment 1 in that the overhanging direction of each arm in embodiment 1 is identical. In this embodiment, the overhanging directions of the arms are arranged at an included angle.

Example 5 of the connector in the present invention:

this embodiment provides a different arm arrangement from embodiment 1, which differs from embodiment 1 in that the overhanging lengths of the arms in embodiment 1 are the same. In this embodiment, the overhanging lengths of the arms are different.

Example 6 of the connector in the present invention:

the present embodiment provides a contact spring arrangement different from embodiment 1 in that the contact spring in embodiment 1 is provided with a curved arch portion on which the contact surface is provided, unlike embodiment 1. In this embodiment, the side surface of the contact spring is provided with a convex portion, and the contact surface is disposed on the convex portion.

Example 7 of the connector in the present invention:

the present embodiment provides a terminal arrangement form different from embodiment 1 in that the terminals in embodiment 1 are arranged in pairs to form differential pairs, which is different from embodiment 1. In this embodiment, the terminals of the terminal modules transmit signals independently of each other without differential pairs.

Example 8 of the connector in the present invention:

the present embodiment provides a terminal module arrangement form different from embodiment 1, and the difference between this embodiment and embodiment 1 is that the trace bodies of the two terminals of the differential pair in embodiment 1 are oppositely arranged along the first direction, and the spring leaf ends of the adjacent two differential pairs are opposite at intervals along the second direction perpendicular to the first direction. In this embodiment, the terminals of the terminal module are arranged in a row.

Example 9 of the connector in the present invention:

the present embodiment provides an insulator arrangement form different from embodiment 1 in that the insulator in embodiment 1 includes two insulating portions arranged in a first direction. In this embodiment, the insulator is integrally formed.

Embodiments of the terminal module in the present invention:

the terminal module in this embodiment is the same as the terminal module in any one of embodiments 1 to 9 of the connector described above, and will not be described here again.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a terminal module, includes insulator and terminal, and the terminal is including fixing the wiring main part on the insulator and stretching out the shell fragment end of insulator, and the shell fragment end is equipped with the contact shell fragment, and characterized by, the contact shell fragment has the contact surface that is used for with the side conductive contact of adaptation contact piece, the contact surface of each terminal is towards same side.

2. The terminal module of claim 1, wherein the contact spring comprises a spring body and at least two arms depending from the spring body, each arm having the contact surface.

3. The terminal module of claim 2, wherein the arms are spaced apart.

4. A terminal module according to claim 2 or 3, wherein the cantilevered direction of each arm is uniform.

5. A terminal module according to claim 2 or claim 3, wherein the cantilevered lengths of the arms are the same.

6. A terminal module according to claim 1, 2 or 3, wherein the contact spring is provided with a curved arch, the contact surface being provided on the arch.

7. A terminal module according to claim 1 or 2 or 3, wherein the terminals are arranged in pairs to form differential pairs.

8. The terminal module according to claim 7, wherein the trace main bodies of the two terminals of the differential pair are arranged oppositely along the first direction, the spring plate ends of the adjacent two differential pairs are opposite at intervals along the second direction perpendicular to the first direction, the joint part of the contact spring plate and the trace main body is of a bending structure, and the thickness direction of the contact spring plate is perpendicular to the thickness direction of the trace main body.

9. The terminal module according to claim 8, wherein the insulator includes two insulating portions arranged in the first direction, the two insulating portions being fixedly connected, and the two terminals of the differential pair being respectively fixed to the two insulating portions.

10. A connector comprising a terminal module, characterized in that the terminal module is a terminal module according to any one of the preceding claims 1-9.