TWM654750U - Electrical connector and assembly thereof - Google Patents

Abstract

The invention is an electrical connector and its combination, wherein the electrical connector includes a base, a first terminal and a second terminal, the base is provided with an upper end face, a lower end face and a front end face connecting the upper and lower end faces, the first terminal includes a first contact portion protruding from the lower end face and a second contact portion protruding from the upper end face, and the second terminal includes a third contact portion extending to the front end face, and the first and second terminals are electrically connected one by one. Furthermore, the upper and lower terminals are protruding arc surfaces. The two contact portions of the first terminal of the invention can be connected to the circuit board respectively, and the contact portion of the second terminal can be connected to the cable, thereby being applicable to a high-configuration electrical connector combination. The upper and lower end faces of the protruding arc surface can be applied to floating assembly, allowing assembly tolerance and vibration tolerance.

Description

Electrical connectors and assemblies thereof

This creation relates to an electrical connector and a combination thereof.

Related knowledge and technology Connectors are commonly used components in communication equipment. 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 more difficult. At this time, even if the electrical component is connected to the connector, the stress generated after the connection is large, which seriously affects the electrical performance of the connector, so the tolerance of the connector is poor.

Therefore, it is necessary to provide an improved electrical connector to solve the above problems.

The purpose of this invention is to provide an electrical connector and its combination to allow assembly tolerance and vibration tolerance.

To achieve the above purpose, this creation can adopt the following technical solutions:

An electrical connector includes 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. The first terminal includes a first contact portion protruding from the lower end surface and a second contact portion protruding from the upper end surface. The second terminal includes a third contact portion extending to the front end surface. The first and second terminals are electrically connected one by one.

To achieve the above purpose, this creation can also adopt the following technical solutions:

An electrical connector element includes an electrical connector and a first connector and a second connector connected to the electrical connector; the first and second connectors are respectively used to be installed on circuit boards parallel to each other, and the electrical connector is provided with a first contact portion connected to the first connector, a second contact portion connected to the second connector, and a third contact portion, and the third contact portion is used for connecting a cable connector.

To achieve the above purpose, this creation can also adopt the following technical solutions:

An electrical connector includes a base and a first terminal, wherein 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, wherein the first terminal includes a first contact portion protruding from the lower end surface and a second contact portion protruding from the upper end surface, wherein the upper end surface of the base is an arcuate surface protruding upward in the middle, and the lower end surface of the base is an arcuate surface protruding downward in the middle.

Compared with the known technology, this invention realizes grounding of the bolt part by contacting the ground terminal with the inner surface of the threaded part, thereby improving the electromagnetic shielding performance of the electrical connector. Compared with the known technology, the two contact parts of the first terminal of this invention can be connected to the circuit board respectively, and the contact part of the second terminal can be connected to the cable, so that a high-configuration electrical connector assembly can be applied. Furthermore, the upper and lower end surfaces of the convex arc surface of this invention can be applied to floating assembly, allowing assembly tolerance and vibration tolerance.

100:Electrical connector

100A:Electrical connector

100B:Electrical connector

101: First docking interface

102: Second docking interface

103: The third docking interface

10: Base

111: Upper end surface

112: Lower end surface

113: Front end

12: Docking section

121: Docking cavity

122: Anti-stupidity

123: Anti-blocking

13: First insulation block

131: Receiving chamber

132: Fixed seam

133: Bumps

14: Second insulation block

141: flange

17: First insulation block

18: Second insulation block

181: Receiving chamber

200: First connector

20: First terminal

21: First contact part

22: Second contact part

23:Fixed part

231: Notch

300: Second connector

30: Second terminal

31: The third contact part

32: Butt joint

32B: abutment part

321: Transverse ribs

40:Metal frame

40B: Metal frame

42: Base frame

421: Shrapnel

43: Lower frame

431: First receiving chamber

432: Elastic arm

44: Upper frame

441: Second receiving chamber

442: Elastic arm

45: Grounding arm

50: Seat

501: Butt joint

502: Mounting surface

51: Terminal slot

60: Third terminal

61: Long terminal

62: Short terminal

63:Fixed part

64: Elastic arm

641: Contact part

65: Welding Department

70:Metal shell

71: Elastic sheet

72: Side panels

721:Fixed plate

91: Circuit board

FIG1 is a perspective view of the electrical connector assembly of the first embodiment of the present invention, in which the three connectors are separated from each other; FIG2 is a perspective view of the electrical connector in FIG1; FIG3 is a perspective exploded view of the electrical connector in FIG2; FIG4 is a perspective exploded view of the electrical connector in FIG2; FIG5 is a perspective exploded view of the first connector in FIG1; FIG6 is a perspective exploded view of the first connector in FIG5 from another angle; FIG7 is a perspective exploded view of the third terminal in FIG5; FIG8 is a cross-sectional view of the electrical connector assembly in FIG1; FIG9 is a cross-sectional view of the electrical connector assembly in FIG8 after normal docking; FIG10 is a cross-sectional view of the electrical connector assembly in FIG8 after offset docking; FIG11 is a cross-sectional view of the electrical connector assembly in FIG8 from another angle after offset docking; FIG12 is a perspective view of the electrical connector assembly in the second embodiment of the present invention, in which the three connectors are connected to each other. The cable connector is separated from the electrical connector; FIG. 13 is a three-dimensional view of the electrical connector in FIG. 12; FIG. 14 is a three-dimensional exploded view of the electrical connector in FIG. 13; FIG. 15 is a three-dimensional exploded view of the electrical connector in FIG. 14 after further decomposition; FIG. 16 is a three-dimensional view of the electrical connector assembly of the third embodiment of the present invention, wherein the three connectors are connected to each other, and the cable connector is separated from the electrical connector; FIG. 17 is a three-dimensional view of the electrical connector and the first connector in FIG. 16, wherein the two connectors are separated from each other; FIG. 18 is a three-dimensional exploded view of the electrical connector in FIG. 17; FIG. 19 is a three-dimensional exploded view of the electrical connector in FIG. 18 after further decomposition, wherein the metal frame is removed; FIG. 20 is a three-dimensional exploded view of the electrical connector in FIG. 19 after further decomposition; and FIG. 21 is a cross-sectional view of the electrical connector in FIG. 17.

In order to facilitate a better understanding of the purpose, structure, features and effects of this creation, this creation is further explained with the help of attached diagrams and specific implementation methods.

The electrical connector assembly of the present invention is used to establish an electrical connector between two parallel circuit boards (not shown), and is particularly suitable when the two circuit boards are spaced at a relatively large distance, that is, the electrical connector assembly is a high-profile structure. Figures 1-11 show an electrical connector assembly 1000 of a first embodiment, wherein the electrical connector assembly includes a first connector 200 and a second connector 300, respectively, which are used to be installed on the circuit board, and an electrical connector 100 that is simultaneously connected to the first and second connectors, that is, the electrical connector 100 has a first docking interface 101 that is connected to the first connector 200, and a second docking interface 102 that is connected to the second connector. At the same time, the electrical connector 100 is also provided with a third docking interface 103 that is connected to a cable connector (not shown in the first embodiment, refer to Figure 12 of the second embodiment). The electrical connector 100 is provided with a first contact portion 21 connected to the first connector 200, a second contact portion 22 connected to the second connector 300, and a third contact portion 31 connected to the cable connector, forming an electrical path.

As shown in FIGS. 1 to 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 and lower end surfaces. The first terminal 20 includes 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 terminal 30 includes a third contact portion 31 extending to the front end surface 113. The first and second terminals 20 and 30 are electrically connected one by one, thereby achieving electrical connection, and in this embodiment, achieving large power transmission.

More specifically, the base 10 is made of insulating material, the upper end surface 111 is a middle upwardly convex arc surface, the lower end surface 112 is a middle downwardly convex arc surface, the front end surface 113 of the base is provided with a forwardly convex docking portion 12, the docking portion 12 is provided with a docking cavity 121, 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 both flat plate structures, and the third contact portion 31 is a needle structure. The first terminal 20 is a vertical longitudinal structure, the upper and lower ends of which constitute the first and second contact portions 21, 22, and the middle portion is fixed in the base 10, which is the middle fixing portion 23. One end of the second terminal 30 is the third contact portion 31, and the other end is the abutment portion 32 that directly abuts against the first terminal 20. The abutment portion 32 is a flat plate with a protruding transverse rib 321. The transverse rib 321 increases the mutual abutment relationship between the abutment portion 32 and the fixing portion 23.

In this embodiment, the base 10 is composed of a first insulating block 13 and a second insulating block 14. The first insulating block 13 constitutes the main body of the base 10, that is, the front end of the first insulating block 13 is provided with the above-mentioned docking portion 12, and the rear end is provided with a receiving cavity 131 penetrating backwards, and the fixing portions 23 of the two first terminals are fixed in the fixing seams 132 provided in the first insulating block 13. The two second terminals 30 are first 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 of the insulating block 14. The rear edges of the two side surfaces of the second insulating block 14 are provided with flanges 141. The two second terminals 30 are respectively disposed on the two side surfaces of the second insulating block 14 and are located in front of the flange 141. Then, the second insulating block 14 is installed into the receiving cavity 131 from the back to the front, and the third contact portion 31 passes through the first insulating block 13 and enters the docking cavity 121 to form the third docking interface 103. The abutting portion 32 just abuts against the fixing portion 23 of the first terminal. The first insulating block 13 can also be formed by assembling two left and right halves together. As shown in Figures 8-9, the front edge of the fixing portion 23 is provided with two notches 231, and the first insulating block 13 is provided with a protrusion 133 inserted into the notches. The first terminal 20 can be assembled on the first insulating block 13 from back to front, and the rear edge of the first terminal is blocked by the protrusion 141. Finally, a metal frame 40 is sleeved on the front and rear end faces and the left and right end faces of the base 10, but does not cover the upper and lower end faces, so as to expose the first and second contact parts 21 and 22, and the docking cavity 121 of the front end face 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 is mainly introduced. The first connector 200 includes a base 50, two sets of third terminals 60 and a metal shell 70. The base 50 is made of an insulating material and is provided with a mating surface 501 and a mounting surface 502 opposite to each other. The base 50 is provided with two terminal slots 51 penetrating the mating surface 501 and the mounting surface 502. The two sets of third terminals 60 are fixed in the terminal slots 51 respectively. As shown in FIG. 7, each set of third terminals 60 includes two pairs of long terminals 61 and two pairs of short terminals 62. Each terminal includes a fixing portion 63, two elastic arms 64 bent upward from the fixing portion 63 in an arc shape, and a welding portion 65 bent downward from the fixing portion 63. The two elastic arms 64 have contact portions 641 respectively. The contact portion 641 of the long terminal is located above the contact portion 641 of the short terminal, that is, close to the mating surface 501. In a specific embodiment, the end of each elastic arm 64 is cut into two contact portions 641. In this way, in a structure with a larger terminal width, the two contact portions 641 can increase the contact opportunity, and even if one of the contacts fails, it can be guaranteed that an electrical connection can still be established. The metal shell 70 includes surroundings of the base 50, but does not cover the mating surface 501 and the mounting surface 502.

Figures 9 to 11 show the completely correct docking and the offset during the docking process. The first contact portion 21 is inserted into the terminal slot 51 of the first connector 200, the contact portion 641 of the elastic terminal abuts against the plate-shaped two side surfaces of the first contact portion 21, and the second contact portion 22 is inserted into the terminal slot 51 of the second connector 300. It can be seen from the figure that the contact portions 641 of the long and short terminals abut against different height positions of the first and second contact portions, respectively, to achieve multi-point contact. Figures 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 and 112 of the electrical connector are arc-shaped structures, which can absorb large tolerance designs in one direction or small tolerances in directions above two axes, such as tolerances generated during vibration, shaking, tilting and assembly, to ensure stable terminal contact.

FIG. 12 to FIG. 16 show a second embodiment, which is substantially the same as the first embodiment. The following mainly introduces the differences. Please note that the same structure uses the same number, and some numbers are added with A for distinction for ease of description. In the first embodiment, the docking portion 12 of the electrical connector 100 is provided with an anti-foolproof opening 122 on the upper wall surface of the docking cavity 121 (see FIG. 2 ). In the second embodiment, the docking portion 12 of the electrical connector 100A is provided with an anti-foolproof block 123 on the upper wall surface of its docking cavity 121. The design of the anti-foolproof structure is mainly to cooperate with the insertion of the cable connector 400. The docking portion 12 is provided with a buckle hole 124 on its outer side surface for buckling with the buckle head of the cable connector 400. In the second embodiment, the abutting portion 32A of the first terminal is smaller in size, and the abutting portion 32A abuts against the fixing portion 23 of the first terminal.

FIG. 16 to FIG. 21 show a third embodiment, which is substantially the same as the first embodiment. The following mainly introduces the differences. Please note that the same structure uses the same reference numerals, and some reference numerals are added with B for distinction, which is convenient for description. In this embodiment, the first connector 200B is shown to be mounted on a circuit board 91, but the circuit board on which the second connector 300B is mounted is not shown. The base 50 of the first connector 200B is slightly contracted near the mating surface 501. The base 50 is accommodated in the metal shell 70, and the metal shell also cooperates to be slightly contracted. The metal shell 70 is abutted against the base 50 by the elastic sheet 71 provided at the lower half thereof. The four side panels 72 at the upper half are separated from each other to achieve a contracted state. The side panels 72 are provided with a fixing sheet 721 bent to be fixed to the mating surface 501, so as to fix the side panels 72 to the base 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 the base 10 on the four outer sides of the base 10, the lower frame 43 extending downward, and the upper frame 44 extending upward. The base frame 42 is provided with a spring 421 elastically abutting against the base. The lower frame 43 of the metal frame surrounds the first contact portion 21 to form a first receiving cavity 431 for receiving the first connector, which has a second downward opening. 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 a second opening facing upward, so that after the electrical connector is connected to the first and second connectors, the metal frame can be included on the outer side of the first and second connectors, which can not only enhance the connection stability of the two connectors, but also improve the shielding effect. At the same time, the metal frame has a third opening for the third contact portion 31 to be exposed to the outside. Specifically, the docking portion 12 passes through the metal frame, so that the docking cavity 121 is exposed to the outside for the cable connector 400B to dock. The upper frame portion 44 is provided with a plurality of elastic arms 442 extending downward, and the elastic arms 442 extend inwardly and can abut against the outer side surface of the second connector. Similarly, the lower frame portion 43 is provided with a plurality of elastic arms 432 extending upward, and the elastic arms extend inwardly obliquely. The metal shell has an opening for the docking portion to pass through. In this embodiment, the metal frame is provided with a pair of grounding arms 45 extending into the docking cavity 121, and the grounding arms are used to achieve electrical connection 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. The abutting portion 32B of the second terminal 30 is an arc-shaped bending structure, which elastically abuts against the first terminal 20 . The base 10B includes a first insulating block 17 and a second insulating block 18 which are assembled and fixed to each other, wherein the butt joint 12 is formed on the first insulating block 17, the third contact portion of the second terminal 30B is inserted into the butt joint cavity of the butt joint, and the elastic abutment portion is exposed on both side surfaces of the first insulating block 17. The second insulating block 18 is a two-piece type, the first terminal 20 is fixed to the second insulating block, and then the two-piece second insulating block clamps the first insulating block 17 in the middle from both 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 receiving cavity 181 extends forward to form a latch arm 182. The first insulating block 17 is provided with a step portion 171 that penetrates the inner bottom surface of the docking cavity 121 forward. The step portion 171 is located behind the docking cavity. At the same time, the first insulating block 17 is also provided with a slide groove 172 located behind the step portion. The latch arm 182 slides along the slide groove to the step portion to form a latch, and the front end of the latch arm is exposed to the docking cavity 121. In this embodiment, the second insulating block 18 is preferably a two-piece structure. Of course, a one-piece structure can also achieve the above function.

In summary, this creation meets the requirements of a new patent, and a patent application is filed in accordance with the law. However, the above is only the best implementation example of this creation, and the scope of this creation is not limited to the above implementation examples. Any equivalent modifications or changes made by people familiar with the art of this case based on the spirit of this creation should be included in the scope of the following patent application.

100:Electrical connector

101: First docking interface

102: Second docking interface

103: The third docking interface

111: Upper end surface

112: Lower end surface

200: First connector

21: First contact part

22: Second contact part

300: Second connector

31: The third contact part

Claims (12)

An electrical connector includes a base, a first terminal and a second terminal, wherein 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, wherein the first 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, and the first and second terminals are electrically connected one by one. An electrical connector as described in claim 1, wherein the upper end surface of the base is an arc-shaped surface convexly extending upward from the middle, and the lower end surface of the base is an arc-shaped surface convexly extending downward from the middle. As described in claim 1, 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 third contact portion of the second terminal is exposed in the docking cavity. The electrical connector as claimed in claim 1, wherein the electrical connector comprises a metal frame, the base is fixed in the metal frame, the metal frame surrounds the first contact portion to form a first opening facing downward, the metal frame surrounds the second contact portion to form a second opening facing upward, and the metal frame has a third opening for exposing the third contact portion to the outside. The electrical connector as described in 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, the third contact portion of the second terminal is exposed in the docking cavity, and the metal frame is provided with a pair of grounding arms extending into the docking cavity. The electrical connector as described in claim 5, wherein the first and second contact portions are both flat plate structures, the third contact portion is a needle structure, and the second terminal includes an abutment portion that directly abuts against the first terminal. The electrical connector as described in claim 6, wherein the abutment portion of the second terminal is an arc-shaped bending structure, which elastically abuts against the first terminal. An electrical connector assembly includes an electrical connector and a first connector and a second connector connected to the electrical connector; wherein the first and second connectors are respectively used to be installed on circuit boards parallel to each other, and the electrical connector is provided with a first contact portion connected to the first connector, a second contact portion connected to the second connector, and a third contact portion, wherein the third contact portion is used for connecting a cable connector. The electrical connector assembly as described in claim 8, wherein the electrical connector includes a metal frame and a base received in the metal frame, the metal frame surrounds the first contact portion to form a first receiving cavity for receiving the first connector, and the metal frame surrounds the second contact portion to form a second receiving cavity for receiving the second connector. As described in claim 9, the electrical connector assembly, wherein the front end surface of the base is provided with a docking cavity, and the third contact portion is exposed in the docking cavity. An electrical connector includes a base and a first terminal, wherein 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, wherein the first terminal includes a first contact portion protruding from the lower end surface and a second contact portion protruding from the upper end surface, the upper end surface of the base is a middle upwardly protruding arc surface, and the lower end surface of the base is a middle downwardly protruding arc surface. The electrical connector as claimed in claim 11, wherein the front end surface of the base is provided with a docking cavity, the electrical connector includes a second terminal, the second terminal includes a third contact portion exposed in the docking cavity, and the first and second terminals are electrically connected one by one.

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