CN117638539A

CN117638539A - Electrical connectors and combinations thereof

Info

Publication number: CN117638539A
Application number: CN202211000247.4A
Authority: CN
Inventors: 林士凯; 徐国峻; 吴明川
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2024-03-01
Also published as: TWM654750U

Abstract

The electric connector comprises a base, a first terminal and a second terminal, wherein the base is provided with an upper end face, a lower end face and a front end face for connecting the upper end face and the lower end face, the first terminal comprises a first contact part protruding out of the lower end face and a second contact part protruding out of the upper end face, the second terminal comprises a third contact part extending to the front end face, and the first terminal and the second terminal are in one-to-one electric connection. Further, the upper and lower terminals have convex arcuate surfaces. The two contact parts of the first terminal can be respectively connected with the circuit board, and the contact part of the second terminal can be connected with a cable, so that the invention is applicable to high-configuration electric connector combination. The upper and lower end surfaces of the convex arc surface can be adapted for floating type assembly, allowing assembly tolerance and vibration tolerance.

Description

Electric connector and combination thereof

[ field of technology ]

The invention relates to an electric connector and a combination thereof.

[ background Art ]

Related art connectors are components commonly used in communication devices. The two ends of a general connector are connected to two electrical components, respectively. When the structural design of the electrical component deviates, the connection between the connector and the electrical component is difficult, and even if the electrical component is connected to the connector, the stress generated after the connection is larger, which seriously affects the electrical performance of the connector, so the tolerance of the connector is poor.

Accordingly, there is a need for an improved electrical connector that solves the above problems.

[ invention ]

The present invention provides an electrical connector and a combination thereof, which simplifies the fixing of a card module.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides an electric connector, includes base, first terminal and second terminal, the base is equipped with up end, lower terminal surface and connects the preceding terminal surface of upper and lower terminal surface, first terminal includes protruding stretching out the first contact portion of lower terminal surface and protruding stretching out the second contact portion of up end, the second terminal then includes and extends to the third contact portion of preceding terminal surface, first, second terminal one-to-one electric connection.

In order to achieve the above object, the present invention adopts another technical scheme as follows: an electrical connector assembly comprising an electrical connector and first and second connectors that interface with the electrical connector; the first connector and the second connector are respectively arranged on circuit boards parallel to each other, the electric connector is provided with a first contact part which is in butt joint with the first connector, a second contact part which is in butt joint with the second connector, and a third contact part which is used for being in butt joint with a cable connector.

In order to achieve the above object, the present invention adopts another technical scheme as follows: the utility model provides an electric connector, includes base and first terminal, the base is equipped with up end, lower terminal surface and connects the preceding terminal surface of upper and lower terminal surface, first terminal includes protruding stretching out the first contact portion of lower terminal surface and protruding stretching out the second contact portion of up end, the up end of base is middle upwards protruding arc surface, the lower terminal surface of base is middle downwards protruding arc surface

Compared with the prior art, the two contact parts of the first terminal can be connected with the circuit board respectively, and the contact part of the second terminal can be connected with a cable, so that the high-configuration electric connector combination can be suitable. Furthermore, the upper and lower end surfaces of the convex arc surface of the present invention can be adapted for floating type assembly, allowing assembly tolerance and vibration tolerance.

[ description of the drawings ]

Fig. 1 is a perspective view of a first embodiment of an electrical connector assembly of the present invention, wherein three connectors are separated from each other.

Fig. 2 is a perspective view of the electrical connector of fig. 1.

Fig. 3 is an exploded perspective view of the electrical connector of fig. 2.

Fig. 4 is an exploded perspective view of the electrical connector of fig. 2.

Fig. 5 is an exploded perspective view of the first connector of fig. 1.

Fig. 6 is another angular exploded view of the first connector of fig. 5.

Fig. 7 is an exploded perspective view of the third terminal in fig. 5.

Fig. 8 is a cross-sectional view of the electrical connector assembly of fig. 1.

Fig. 9 is a cross-sectional view of the electrical connector assembly of fig. 8 after normal mating.

Fig. 10 is a cross-sectional view of the electrical connector assembly of fig. 8 after offset mating.

Fig. 11 is a cross-sectional view of the electrical connector assembly of fig. 8 at another angle after offset mating.

Fig. 12 is a perspective view of a second embodiment of the electrical connector assembly of the present invention, wherein three connectors are mated with each other and the cable connector is disconnected from the electrical connector.

Fig. 13 is a perspective view of the electrical connector of fig. 12.

Fig. 14 is an exploded perspective view of the electrical connector of fig. 13.

Fig. 15 is a further exploded perspective exploded view of the electrical connector of fig. 14.

Fig. 16 is a perspective view of a third embodiment of the electrical connector assembly of the present invention, wherein three connectors are mated with each other and the cable connector is disconnected from the electrical connector.

Fig. 17 is a perspective view of the electrical connector and the first connector of fig. 16, wherein the two connectors are separated from each other.

Fig. 18 is an exploded perspective view of the electrical connector of fig. 17.

Fig. 19 is a further exploded perspective view of the electrical connector of fig. 18 with the metal frame removed.

Fig. 20 is a further exploded perspective view of the electrical connector of fig. 19.

Fig. 21 is a cross-sectional view of the electrical connector of fig. 17.

[ reference numerals ]

Electric connector assembly 1000

First mating interface 101 of electrical connectors 100, 100A, 100B

Second docking interface 102 third docking interface 103

First connector 200, 200B second connector 300

Base 10 metal frame 40, 40B

Upper end face 111 base frame portion 42

Lower end face 112 spring 42

Front face 113 lower frame 43

First receiving cavity 431 of butt joint part 12

Elastic arm 432 of docking chamber 121

Fool-proof port 122 upper frame portion 44

Fool-proof block 123 second accommodation cavity 441

Elastic arm 442 of first insulating block 13

Grounding arm 45 of accommodating cavity 131

Fixing slit 132 seat 50

Bump 133 butt-joint surface 501

Second insulating 14 mounting face 502

Flange 141 terminal groove 51

Third terminal 60 of first insulating block 17

Second insulating block 18 long terminal 61

Receiving cavity 181 short terminal 62

First terminal 20 fixing portion 63

The first contact portion 21 is provided with a resilient arm 64

The second contact portion 22 contacts the portion 641

Welded portion 65 of fixing portion 23

Recess 231 metal housing 70

Second terminal 30 elastic piece 71

Side plate 72 of third contact portion 31

Abutment 32, 32B fixing piece 721

Transverse rib 321 circuit board 91

The invention will be further described in the following detailed description in conjunction with the above-described figures.

[ detailed description ] of the invention

For a better understanding of the invention with objects, structures, features, and effects, the invention will be described further with reference to the drawings and to the detailed description.

The electric connector assembly is used for establishing an electric connector on two parallel circuit boards (not shown), and is particularly suitable for being used when the two circuit boards are separated by a relatively large distance, namely, the electric connector assembly is in a high-configuration structure. Fig. 1-11 show a first embodiment of an electrical connector assembly 1000 comprising a first connector 200, a second connector 300 for mounting on a circuit board, respectively, and an electrical connector 100 for mating with the first and second connectors at the same time, i.e. the electrical connector 100 has a first mating interface 101 for mating with the first connector 200 and a second mating interface 102 for mating with the second connector, while the electrical connector 100 is further provided with a third mating interface 103 for mating with a cable connector (not shown in the first embodiment, see fig. 12 of the second embodiment). The electrical connector 100 is provided with a first contact portion 21 mating with the first connector 200, a second contact portion 22 mating with the second connector 300, and a third contact portion 31 mating with the cable connector, which constitute an electrical path.

Referring to fig. 1-4, the electrical connector 100 includes a base 10, two first terminals 20 and two second terminals 30, the base 10 is provided with an upper end surface 111, a lower end surface 112 and a front end surface 113 connecting the upper end surface and the lower end surface, the first terminals 20 include a first contact portion 21 protruding from the lower end surface 112 and a second contact portion 22 protruding from the upper end surface 111, the second terminals 30 include a third contact portion 31 extending to the front end surface 113, and the first and second terminals 20, 30 are electrically connected in a one-to-one correspondence manner, so as to realize electrical connection, and in this embodiment, realize large power transmission.

More specifically, the base 10 is made of an insulating material, the upper end face 111 is a middle upwardly protruding arc surface, the lower end face 112 is a middle downwardly protruding arc surface, the front end face 113 of the base is provided with a docking portion 12 protruding forward, a docking cavity 121 is provided in the docking portion 12, and the third contact portion 31 of the second terminal 30 is exposed in the docking cavity 121. The first and second contact portions 21, 22 are each of a flat plate-like structure, and the third contact portion 31 is of a needle-like structure. The first terminal 20 has a vertically elongated structure, and has upper and lower ends constituting the first and second contact portions 21 and 22, and an intermediate portion fixed in the base 10 and an intermediate fixing portion 23. The second terminal 30 has a third contact portion 31 at one end and a contact portion 32 directly contacting the first terminal 20 at the other end, and the contact portion 32 has a flat plate shape, and is provided with a protruding transverse rib 321, wherein the transverse rib 321 increases the contact relationship between the contact portion 32 and the fixing portion 23.

In this embodiment, the base 10 is formed by the first insulating block 13 and the second insulating block 14, the first insulating block 13 forms a main body portion of the base 10, that is, the front end surface of the first insulating block 13 is provided with the abutting portion 12, the rear end is provided with the accommodating cavity 131 penetrating backward, and the fixing portions 23 of the two first terminals are fixed in the fixing slits 132 provided in the first insulating block 13. The two second terminals 30 are fixed to the second insulating block 14, wherein the third contact portion 31 protrudes forward from the insulating block 14, and the abutting portion 32 at the rear end is fixed to the side surface of the insulating block 14. The rear edges of both sides of the second insulating block 14 are provided with flanges 141. The two second terminals 30 are respectively provided on both side surfaces of the second insulating block 14 and are located in front of the flange 141. Subsequently, the second insulating block 14 is mounted into the housing cavity 131 from the rear to the front, and the third contact portion 31 passes through the first insulating block 13 and enters the abutting cavity 121 to form the third abutting interface 103. The abutting portion 32 abuts against the fixed portion 23 of the first terminal. The first insulating block 13 may also be formed by assembling two left and right halves together, and referring to fig. 8-9, the front edge of the fixing portion 23 is provided with two notches 231, the first insulating block 13 is provided with a protrusion 133 inserted into the notch, the first terminal 20 may be assembled on the first insulating block 13 from the rear to the front, and the rear edge of the first terminal is blocked by the flange 141. Finally, a metal frame 40 is sleeved on the front and rear end surfaces and the left and right end surfaces of the base 10, but the upper and lower end surfaces are not covered, so that the first and second contact portions 21 and 22 are exposed, and the butt-joint cavity 121 of the front end surface is also exposed, in this embodiment, the metal frame 40 is assembled to the base 10 from top to bottom.

In this embodiment, the first and second connectors 200 and 300 have the same structure, so the first connector 200 will be mainly described. The first connector 200 includes a housing 50, two sets of third terminals 60 and a metal shell 70, the housing 50 is made of an insulating material and is provided with a butt joint surface 501 and a mounting surface 502 which are opposite to each other, the housing 50 is provided with two terminal grooves 51 penetrating the butt joint surface 501 and the mounting surface 502, the two sets of third terminals 60 are respectively fixed in the terminal grooves 501, and each set of third terminals 60 includes two pairs of long terminals 61 and two pairs of short terminals 62, as shown in fig. 7, each terminal includes a fixing portion 63, two elastic arms 64 bent upwards from the fixing portion 63 and a welding portion 65 bent downwards from the fixing portion 63. The two elastic arms 64 have contact portions 641, respectively, and the contact portion 641 of the long terminal is located above the contact portion 61 of the short terminal, i.e., adjacent to the abutting surface 501, and in a specific embodiment, the end of each elastic arm 64 is cut into two contact portions 641, so that in a structure with a larger terminal width, the contact opportunity can be increased by the two contact portions 641, and even if one of the contact fails, the electrical connection can be established. The metal shell 70 includes a surrounding cover of the base 50, but does not cover the abutting surface 501 and the mounting surface 502.

Fig. 9-11 show the situation of complete correct mating and offset during mating, the first contact portion 21 is inserted into the terminal slot 51 of the first connector 200, the contact portions 641 of the spring terminals abut against the plate-like sides of the first contact portion 21, and the second contact portion 22 is inserted into the terminal slot 51 of the second connector 300. As can be seen from the drawing, the contact portions 641 of the long and short terminals respectively abut on different height positions of the first and second contact portions, thereby realizing multipoint contact. Fig. 10-11 show the offset situation, the mating surfaces 501 of the first and second connectors are flat, and the upper and lower end surfaces 111, 112 of the electrical connector are arc-shaped, so as to absorb the tolerance design of one-way large-amplitude tolerance or the tolerance of two or more directions of small amplitude, such as the tolerance generated during vibration, shaking, tilting and assembly, to ensure the contact stability of the terminals.

Fig. 12-16 show a second embodiment, which is substantially the same as the first embodiment, and mainly includes differences described below, and note that the same structures are given the same reference numerals, and some reference numerals are added by a for convenience of description. In the first embodiment, the mating portion 12 of the electrical connector 100 is provided with a fool-proof opening 122 (see fig. 2) on the upper wall surface of the mating cavity 121. In the second embodiment, the mating portion 12 of the electrical connector 100A is provided with the fool-proof block 123 on the upper wall surface of the mating cavity 121, and the fool-proof structure is mainly designed to be inserted into the mating cable connector 400. The mating portion 12 has a latch hole 124 on an outer side thereof for latching with a latch head of the cable connector 400. In the second embodiment, the abutting portion 32A of the first terminal is small in size, and the abutting portion 32A abuts against the fixing portion 23 of the first terminal.

Fig. 16-21 show a third embodiment, which is substantially the same as the first embodiment, and mainly described below with respect to the differences, note that the same reference numerals are used for the same structures, and some reference numerals are added with B for convenience of description. In the present embodiment, the first connector 200B is shown mounted on a circuit board 91, but the circuit board on which the second connector 300B is mounted is not shown. The housing 50 of the first connector 200B is slightly contracted near the abutting surface 501, the housing 50 is accommodated in the metal housing 70, the metal housing also fits into the slightly contracted, the metal housing 70 abuts against the housing 50 through the elastic piece 71 provided at the lower half thereof, the four side plates 72 at the upper half are separated from each other to achieve the contracted shape, and the side plates 72 are provided with the fixing piece 721 bent to be fixed at the abutting surface 501 for fixing the side plates 72 to the housing 50.

The metal frame 40B of the electrical connector 100B of the third embodiment further extends upward and downward to protrude from the corresponding upper and lower end surfaces. Specifically, the metal frame 40B surrounds a base frame 42, a lower frame 43 and an upper frame 44, which extend downward and upward, on four outer sides of the base 10, and the base frame 42 is provided with a spring piece 421 elastically abutting against the base. The lower frame portion 33 of the metal frame body surrounds the first contact portion 21 to form a first receiving cavity 431 for receiving the first connector, and has a second opening facing downward. The upper frame portion 44 surrounds the second contact portion 22 to form a second receiving cavity 441 for receiving the second connector, and has an upward second opening, so that after the electrical connector is mated with the first and second connectors, the metal frame body can be included on the outer sides of the first and second connectors, so that not only the mating stability of the two connectors can be enhanced, but also the shielding effect can be improved. Meanwhile, the metal frame body has a third opening for exposing the third contact portion 31 outwards, specifically, the docking portion 12 penetrates through the metal frame body, so that the docking cavity 121 is exposed outwards for docking the cable connector 400B. The upper frame portion 44 is provided with a plurality of downwardly extending elastic arms 442, and the elastic arms 442 extend obliquely inward and can abut against the outer side surface of the second connector. Similarly, the lower frame 43 is provided with a plurality of upwardly extending resilient arms 432 extending obliquely inwardly. The metal shell has an opening through which the docking portion passes. In this embodiment, the metal frame is provided with a pair of grounding arms 45 extending into the mating cavity 121, and the grounding arms are used to electrically connect with the grounding member 401 of the cable connector 400B.

The first terminal is substantially the same as the first terminal of the second embodiment, and the abutting portion 32B of the second terminal 30 is an arc-shaped bent structure, and elastically abuts against the first terminal 20. The base 10B includes a first insulating block 17 and a second insulating block 18 assembled and fixed with each other, wherein the abutting portion 12 is formed in the first insulating block 17, the third contact portion of the second terminal 30B is inserted into the abutting cavity of the abutting portion, the elastic abutting portion is exposed at two sides of the first insulating block 17, the second insulating block 18 is two-piece, the first terminal 20 is fixed on the second insulating block, then the two-piece second insulating block clamps the first insulating block 17 in the middle from two sides, wherein the second insulating block is provided with a receiving cavity 181, and the rear end of the first insulating block 17 is just received in the receiving cavity 181. The inner bottom surface of the accommodating cavity 181 extends forwards to form a latch arm 182, the first insulating block 17 is provided with a step portion 171 penetrating forwards through the inner bottom surface of the abutting cavity 121, the step portion 171 is located behind the abutting cavity, meanwhile, the first insulating block 17 is also provided with a sliding groove 172 located behind the step portion, the latch arm 182 slides to the step portion along the sliding groove to form a latch, and the front end of the latch arm is exposed to the abutting cavity 121. The second insulating block 18 is preferably two-piece in this embodiment, although a one-piece construction is also possible to achieve the above-described function.

The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather as merely providing for the full scope of equivalents and modifications that can be made in accordance with the invention as set forth in the claims and specification to which this invention pertains.

Claims

1. An electrical connector, including a base, a first terminal and a second terminal. The base is provided with an upper end surface, a lower end surface and a front end surface connecting the upper and lower end surfaces. It is characterized in that: the third One terminal includes a first contact portion protruding from the lower end surface and a second contact portion protruding from the upper end surface, and the second terminal includes a third contact portion extending to the front end surface, The first and second terminals are electrically connected in one-to-one correspondence.

2. The electrical connector according to claim 1, wherein the upper end surface of the base is an arc-shaped surface protruding upward in the middle, and the lower end surface of the base is an arc-shaped surface protruding downward in the middle.

3. The electrical connector according to claim 1, wherein the front end surface of the base is provided with a docking portion protruding forward, a docking cavity is provided in the docking portion, and the second terminal is provided with a docking cavity. The third contact portion is exposed in the docking cavity.

4. The electrical connector of claim 1, wherein the electrical connector includes a metal frame, the base is fixed in the metal frame, and the metal shell surrounds the first contact portion A downward first opening is formed, the metal frame surrounds the second contact portion to form an upward second opening, and the metal shell has a third opening for exposing the third contact portion to the outside.

5. The electrical connector according to claim 4, wherein the front end surface of the base is provided with a docking portion protruding forward, a docking cavity is provided in the docking portion, and the second terminal is provided with a docking cavity. The third contact portion is exposed in the docking cavity, and the metal frame is provided with a pair of ground arms extending into the docking cavity.

6. The electrical connector according to claim 5, wherein the first and second contact parts are flat-shaped structures, the third contact part is a needle-shaped structure, and the second terminal includes a direct The contact portion is in contact with the first terminal.

7. The electrical connector according to claim 6, wherein the contact portion of the second terminal has an arc-shaped bending structure and is elastically contacted with the first terminal.

8. An electrical connector assembly, which includes an electrical connector and a first connector and a second connector that are interconnected with the electrical connector; characterized in that: the first and second connectors are used to Installed on circuit boards parallel to each other, the electrical connector is provided with a first contact portion that is mated with the first connector, a second contact portion that is mated with the second connector, and a third contact portion, The third contact portion is used for docking with a cable connector.

9. The electrical connector assembly according to claim 8, wherein the electrical connector includes a metal frame and a base contained in the metal frame, and the metal frame surrounds the first contact portion. A first receiving cavity is formed to accommodate the first connector, and the metal frame surrounds the second contact portion to form a second receiving cavity to accommodate the second connector.

10. The electrical connector assembly according to claim 8, wherein a docking cavity is provided on a front end surface of the base, and the third contact portion is exposed in the docking cavity.

11. An electrical connector, including a base and a first terminal. The base is provided with an upper end surface, a lower end surface and a front end surface connecting the upper and lower end surfaces. It is characterized in that: the first terminal includes a convex The first contact portion protrudes from the lower end surface and the second contact portion protrudes from the upper end surface. The upper end surface of the base is an arc-shaped surface protruding upward in the middle. The lower end surface of the base is the middle The curved surface extends downward.

12. The electrical connector according to claim 11, wherein the front end surface of the base is provided with a mating cavity, the electrical connector includes a second terminal, and the second terminal includes an exposed member on the pair of Connect the third contact portion in the cavity, and the first and second terminals are electrically connected in one-to-one correspondence.