CN111834852A

CN111834852A - Electric connector combination

Info

Publication number: CN111834852A
Application number: CN201910322691.XA
Authority: CN
Inventors: 李新磊
Original assignee: Molex LLC
Current assignee: Molex Interconnect Shanghai Co Ltd; Molex LLC
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-10-27
Anticipated expiration: 2039-04-22
Also published as: TW202040894A; TWI722513B; CN111834852B

Abstract

An electrical connector assembly includes a first connector and a second connector. The first connector comprises a rotating shaft and a plurality of conducting rings, the rotating shaft comprises a pipe body extending in an axial direction and annular convex parts formed on the outer peripheral surface of the pipe body, the conducting rings are arranged on the annular convex parts at intervals, and each conducting ring is provided with a contact ring surface facing to the axial direction. The second connector comprises a plurality of conductive terminals respectively corresponding to the conductive rings, and each conductive terminal is provided with an elastic contact part which is in contact with the contact ring surface of the corresponding conductive ring in the axial direction. The conducting ring of the first connector and the conducting terminal of the second connector are contacted with each other in the axial direction, so that the condition of unstable contact in the radial contact process can be avoided.

Description

Electric connector combination

Technical Field

The present invention relates to an electrical connector assembly, and more particularly, to a rotary electrical connector assembly.

Background

Chinese utility model patent publication No. CN206283084U discloses an electric connector assembly, which comprises a terminal and a conducting ring that are butted against each other, the terminal includes a fixing part that is plate-shaped, and certainly the fixing part both ends to the center line of rotation of conducting ring extends and with two elastic contact portions of the conducting ring sliding connection. In the electrical connector assembly, the elastic contact portion contacts the conductive ring in a radial direction of the rotation axis. Such a radial contact method has disadvantages in that the elastic contact portion of the terminal is not in contact with the maximum width portion of the conductive ring, which tends to cause unstable contact, and a contact failure is likely to occur if the rotation center of the rotation shaft is shifted.

Disclosure of Invention

It is therefore an object of the present invention to provide an electrical connector assembly that improves upon at least one of the above-mentioned problems of the prior art.

Thus, in some embodiments, the electrical connector assembly of the present invention includes a first connector and a second connector. The first connector comprises a rotating shaft and a plurality of conducting rings, the rotating shaft comprises a pipe body extending in an axial direction and annular convex parts formed on the outer peripheral surface of the pipe body, the conducting rings are arranged on the annular convex parts at intervals, and each conducting ring is provided with a contact ring surface facing to the axial direction. The second connector comprises a plurality of conductive terminals respectively corresponding to the conductive rings, and each conductive terminal is provided with an elastic contact part which is in contact with the contact ring surface of the corresponding conductive ring in the axial direction.

In some embodiments, the first connector comprises two of said conductive rings, the contact annulus of the two conductive rings facing in opposite directions in the axial direction.

In some embodiments, the annular protrusion has a first assembly structure, and each conductive ring has a second assembly structure assembled to the first assembly structure.

In some embodiments, the first assembly structure has a fastening block formed on the annular protrusion, and the second assembly structure has a fastening hole formed on the conductive ring and corresponding to the fastening block.

In some embodiments, the rotating shaft of the first connector includes two annular protrusions, the two annular protrusions are formed on the tube body at intervals, and the two conductive rings are respectively disposed on the two annular protrusions.

In some embodiments, the first connector further includes a plurality of wires disposed in the tube and a plurality of terminals, each terminal being connected between the plurality of wires and the plurality of conductive rings.

In some embodiments, the annular protrusion is formed with a wiring groove, each of the connection terminals has a wire connection portion connected to the corresponding wire, and a plugging portion protruding into the wiring groove, and each of the conductive rings has a plugging piece extending into the wiring groove and plugged into the plugging portion of the corresponding connection terminal.

In some embodiments, the wire slot has a first receptacle into which the mating portion of the corresponding wire terminal extends, and a second receptacle into which the mating piece of the corresponding conductive ring extends.

In some embodiments, the second connector further includes a base for mounting a plurality of conductive terminals, the base having a receiving cavity for receiving the shaft of the first connector, and the elastic contact portions of the conductive terminals extending into the receiving cavity to contact the contact ring surfaces of the conductive rings.

In some embodiments, the tube of the shaft has a first end and a second end at opposite ends, and the accommodating groove has an accommodating recess for accommodating the first end of the tube of the shaft and an accommodating recess for accommodating the second end of the tube of the shaft.

In the invention, the conductive ring of the first connector and the conductive terminal of the second connector are contacted with each other in the axial direction, so that the condition of unstable contact in radial contact can be avoided. In addition, the conducting ring is assembled on the annular convex part in an assembling mode, and the conducting wire is inserted into the conducting ring through the wiring terminal, so that the parts can be manufactured and assembled more easily, and meanwhile, the disassembly is facilitated.

Drawings

Other features and technical effects of the present invention will be apparent from the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of one embodiment of the electrical connector assembly of the present invention;

FIG. 2 is an exploded perspective view of FIG. 1;

FIG. 3 is an exploded perspective view of the first connector of this embodiment, with the inner sleeve of the first connector omitted;

FIG. 4 is a side view of the embodiment;

FIG. 5 is a bottom view of the embodiment; and

fig. 6 is a sectional view taken along line a-a in fig. 5.

Description of reference numerals:

10: electric connector combination

1: first connector

11: rotating shaft

111: pipe body

111 a: threading hole

111 b: first end part

111 c: second end portion

112: annular convex part

112 a: first assembling structure

112 b: buckle block

112 c: junction block

112 d: wiring groove

112e, 112 e: first jack

112 f: second jack

12: conducting ring

121: contact ring surface

122: second assembling structure

122 a: buckling convex part

122 b: buckle hole

123: plug-in sheet

123 a: plug-in projection

13: conducting wire

131: wire core

14: connecting terminal

141: wire connecting part

141 a: a first clamping section

141 b: second clamping section

142: plug-in part

142 a: plug hole

142 b: contact sheet

142 c: barb convex part

15: inner sleeve

2: second connector

20: fixing pin

21: base body

211: containing groove

211 a: accommodation concave part

211 b: accommodating notch

22: conductive terminal

221: fixing part

222: elastic contact part

223: tail part

D: axial direction

100: device for measuring the position of a moving object

100 a: machine board

Detailed Description

Referring to fig. 1 to 2, an embodiment of an electrical connector assembly 10 of the present invention includes a first connector 1 and a second connector 2.

Referring to fig. 2 to 5, the first connector 1 includes a rotating shaft 11, two conductive rings 12, two wires 13, two terminals 14, and an inner sleeve 15. The shaft 11 is made of an insulating material such as plastic, and includes a tube 111 extending in an axial direction D, and an annular protrusion 112 formed on an outer circumferential surface of the tube 111. In an embodiment, the number of the annular protrusions 112 is two, and the two annular protrusions 112 are formed on the tube 111 at intervals, the two conductive rings 12 are respectively disposed on two end surfaces of the two annular protrusions 112 facing away from each other in the axial direction D, and the contact annular surfaces 121 of the two conductive rings 12 face opposite directions in the axial direction D, it should be noted that, in a variation, the number of the annular protrusions 112 may also be only one, and at this time, the two conductive rings 12 are respectively disposed on two end surfaces of the annular protrusion 112 opposite to each other in the axial direction D. In detail, each annular protrusion 112 has a first assembling structure 112a, and each conductive ring 12 has a second assembling structure 122 assembled to the first assembling structure 112 a. The first assembly structure 112a has a plurality of fastening blocks 112b formed on the outer peripheral surface of the annular protrusion 112, the second assembly structure 122 has a plurality of fastening protrusions 122a formed on the conductive ring 12 extending toward the plurality of fastening blocks 112b, respectively, and fastened with the plurality of fastening blocks 112b, respectively, and each fastening protrusion 122a has a fastening hole 122b formed therethrough for receiving the corresponding fastening block 112 b.

Two wires 13 are disposed in the tube 111 and are electrically and mechanically connected to the two conductive rings 12 through a plurality of terminals 14, respectively. In detail, the tube 111 is formed with two opposite threading holes 111a between the two annular protrusions 112, two wires 13 (the portion of the wire 13 inside the tube 111 is omitted in the figure) respectively extend out of the tube 111 through the two threading holes 111a, and two connection terminals 14 are respectively connected between the wires 13 and the conductive rings 12. Each of the annular projections 112 is formed with a terminal block 112c projecting radially outward, the terminal block 112c being formed with a wiring groove 112d, the wiring groove 112d having a first insertion hole 112e and a second insertion hole 112f formed perpendicularly to each other. Each wire connecting terminal 14 has a wire connecting portion 141 connected to the corresponding wire 13 and an inserting portion 142 extending into the first insertion hole 112e of the corresponding wire connecting slot 112d, the wire connecting portion 141 has a first clamping section 141a clamped to the corresponding wire 13 and a second clamping section 141b mechanically and electrically clamped to the wire core 131 of the corresponding wire 13, the inserting portion 142 is formed with an insertion hole 142a at the end, a contact piece 142b penetrating into the insertion hole 142a, and an inverted hook protrusion 142c clamped to the inner wall surface of the wire connecting slot 112d to prevent the inserting portion 142 from coming off from the wire connecting slot 112 d. Each conductive ring 12 has a plug piece 123 extending into a second insertion hole 112f of the corresponding wire connecting slot 112d and inserted into the insertion portion 142 of the corresponding wire connecting terminal 14, and the plug piece 123 has a plug protrusion 123a extending toward the opening of the first insertion hole 112e, and the plug protrusion 123a is inserted into the insertion hole 142a of the insertion portion 142 of the corresponding wire connecting terminal 14 and contacts the contact piece 142b of the corresponding insertion portion 142. Since the conductive ring 12 is assembled to the annular protrusion 112 in an assembling manner, the wires 13 are inserted into the conductive ring 12 through the terminals 14, so that the above parts can be manufactured and assembled more easily, and disassembly is facilitated. The inner sleeve 15 is disposed through one end of the tube 111 of the rotating shaft 11, and the inner sleeve 15 is used for accommodating a plurality of wires 13 (the portion of the wires 13 inside the inner sleeve 15 is omitted in the figure).

Referring to fig. 1 to 6, the second connector 2 includes a base 21 fixed to a board 100a of a device 100 by two fixing pins 20, and a plurality of conductive terminals 22 disposed on the base 21 and respectively corresponding to the conductive rings 12. The bottom of the seat 21 is formed with a receiving cavity 211 for receiving the rotating shaft 11 of the first connector 1, the tube 111 of the rotating shaft 11 has a first end 111b and a second end 111c at opposite ends, the receiving cavity 211 has a receiving recess 211a for receiving the first end 111b of the tube 111 of the rotating shaft 11, and a receiving recess 211b penetratingly formed in the seat 21 for receiving the second end 111c of the tube 111 of the rotating shaft 11. Each conductive terminal 22 has a fixing portion 221 embedded and fixed in the housing 21, an elastic contact portion 222 extending from one end of the fixing portion 221 and extending into the accommodating slot 211 for contacting the contact ring surface 121 of the corresponding conductive ring 12 in the axial direction D, and a tail portion 223 extending from the other end of the fixing portion 221 and extending out of the top surface of the housing 21, the tail portions 223 are respectively used for connecting two cables (not shown), but in an alternative embodiment, the tail portions 223 may also be disposed on a circuit board (not shown); the conductive terminals 22 can also be assembled on the housing 21 by using pins. It should be noted that the structure of the seat 21 can be modified according to actual requirements, and should not be limited to the manner illustrated in the embodiment. Since the contact ring surface 121 of the conductive ring 12 of the first connector 1 and the elastic contact portion 222 of the conductive terminal 22 of the second connector 2 contact each other in the axial direction D, the first connector 1 is rotatably connected to the second connector 2, and the contact manner in the axial direction D can avoid the unstable contact condition during radial contact, so as to achieve stable current transmission between the two connectors.

It should be noted that, although the conductive ring 12, the conductive wire 13 and the conductive terminal 22 are two in number in the embodiment, the number thereof may be more than three, and should not be limited by the embodiment.

In summary, in the present invention, the conductive ring 12 of the first connector 1 and the conductive terminal 22 of the second connector 2 contact each other in the axial direction D, so that the unstable contact condition during radial contact can be avoided. In addition, the conductive ring 12 is assembled to the annular protrusion 112 in an assembling manner, and the lead wires 13 are inserted into the conductive ring 12 through the connection terminals 14, so that the above parts can be manufactured and assembled more easily, and disassembly is facilitated.

However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made by the claims and the description of the present invention are included in the scope of the present invention.

Claims

1. An electrical connector assembly comprising:

the first connector comprises a rotating shaft and a plurality of conducting rings, wherein the rotating shaft comprises a pipe body extending in an axial direction and an annular convex part formed on the outer peripheral surface of the pipe body, the conducting rings are arranged on the annular convex part at intervals, and each conducting ring is provided with a contact ring surface facing the axial direction; and

and the second connector comprises a plurality of conductive terminals respectively corresponding to the conductive rings, and each conductive terminal is provided with an elastic contact part which is in contact with the contact ring surface of the corresponding conductive ring in the axial direction.

2. The electrical connector assembly of claim 1 wherein the first connector comprises two of said conductive rings, the contact ring faces of both of said conductive rings facing in opposite directions in the axial direction.

3. The electrical connector assembly of claim 2, wherein the annular ledge has a first assembly structure, and each conductive ring has a second assembly structure assembled to the first assembly structure.

4. The electrical connector assembly of claim 3, wherein the first assembly structure has a button formed on the annular protrusion, and the second assembly structure has a button hole formed on the conductive ring and corresponding to the button.

5. The electrical connector assembly as claimed in claim 4, wherein the shaft of the first connector includes two annular protrusions, the two annular protrusions are formed on the tube at intervals, and the two conductive rings are respectively disposed on the two annular protrusions.

6. The electrical connector assembly as recited in any one of claims 1 to 5, wherein the first connector further comprises a plurality of wires disposed within the tube and a plurality of terminals, each terminal connected between the plurality of wires and the plurality of conductive rings.

7. The electrical connector assembly of claim 6, wherein the annular protrusion defines a wire connecting slot, each terminal has a wire connecting portion connected to the corresponding wire, and a mating portion extending into the wire connecting slot, and each conductive ring has a mating tab extending into the wire connecting slot and mating with the mating portion of the corresponding terminal.

8. The electrical connector assembly of claim 7 wherein the wire slot has a first receptacle into which the mating portion of the corresponding wire terminal extends and a second receptacle into which the mating tab of the corresponding conductive ring extends.

9. The electrical connector assembly as claimed in claim 7, wherein the second connector further comprises a base for mounting a plurality of conductive terminals, the base defining a receiving cavity for receiving the shaft of the first connector, the resilient contact portions of the conductive terminals extending into the receiving cavity to contact the contact ring surfaces of the conductive rings.

10. The electrical connector assembly as claimed in claim 9, wherein the tube of the shaft has a first end and a second end at opposite ends, and the receiving cavity has a receiving recess for receiving the first end of the tube of the shaft and a receiving recess for receiving the second end of the tube of the shaft.