CN212935027U - Electric connecting device and connector thereof - Google Patents

Abstract

An electrical connection device and a connector thereof are provided. The first connector includes an insulative housing, a center terminal and a metal shell. The center terminal has a contact surface. The second connector comprises an insulating component, a central conducting component, a metal sleeve, a sliding component and a spring. The central conductive element defines a central axis. The sliding component can slide relative to the central conducting component along an axial direction of the central shaft and is electrically connected with the central conducting component, and the sliding component comprises a contact surface and a contact end part electrically connected with the contact surface. The spring applies elastic force to the sliding component towards the direction of the first connector so that the contact end part is tightly pressed against the contact surface. Therefore, the number of the constituent members can be reduced and the structure can be simplified, thereby improving the convenience in manufacturing and assembling and reducing the manufacturing cost.

Description

Electric connecting device and connector thereof

Technical Field

The present invention relates to an electrical connector, and more particularly to an electrical connector with a floating mechanism and a connector thereof.

Background

A plug of the coaxial connector disclosed in chinese patent No. CN106663903B is fitted to a housing movable portion of a receptacle through a movable housing member, so that a plug-side center connection member is inserted into the housing movable portion and connected to a receptacle-side center connection member. The movable shell is applied with force by an application spring to absorb the axial position deviation between the plug and the socket. A spring expansion part of a floating spring body is deflected to retract back and forth so as to absorb the positional deviation in the front-back direction. The respective elastic twisted portions of the floating spring body are twisted around the front and rear axes to absorb positional deviation in the left-right direction.

Since the housing movable portion forms a floating mechanism together with the receptacle-side center connector by the floating spring body, the number of component parts at the receptacle end is large and the structure is complicated, which causes difficulty in manufacturing and assembling the components and an increase in manufacturing cost.

In addition, the elastic force generated when the spring expansion and contraction portions and the elastic torsion portions of the floating spring body are deformed is applied to the plug-side center connector through the housing movable portion, which causes the plug-side center connector to be unstable when contacting the socket-side center connector. Meanwhile, the elastic force is applied to a substrate through a substrate connecting terminal plate, so that the contact part of the substrate connecting terminal plate and the substrate is influenced by the elastic force.

Further, the floating spring body is structurally restricted to absorb only positional deviation in the front-rear direction and the left-right direction, but not radial positional deviation in other directions other than the front-rear direction and the left-right direction, and therefore, the use requirement for absorbing the other radial positional deviation cannot be satisfied.

SUMMERY OF THE UTILITY MODEL

It is therefore an object of the present invention to provide an electrical connection device that overcomes at least one of the disadvantages of the prior art.

Therefore, the electrical connection device of the present invention includes a first connector and a second connector.

The first connector includes an insulative housing, a center terminal, and a metal shell. The center terminal is arranged in the center of the insulating body in a penetrating way and is provided with a contact surface. The metal shell is sleeved on the outer periphery of the insulating body. The second connector is inserted into the first connector and comprises an insulating component, a central conductive component, a metal sleeve, a sliding component and a spring. The central conductive component penetrates through the center of the insulating component and defines a central shaft. The metal sleeve is sleeved on the outer periphery of the insulating component. The sliding component is positioned in the metal sleeve and can slide relative to the central conducting component along an axial direction of the central shaft and is electrically connected with the central conducting component, and the sliding component comprises a contact end part which is contacted with the contact surface and is electrically connected with the contact surface. The spring applies elastic force to the sliding component towards the direction of the first connector so that the contact end part tightly abuts against the contact surface.

The utility model discloses an electric connecting device, this contact tip can contact arbitrary position on this contact surface and rather than electric connection.

The utility model discloses an electric connecting device, this metal casing have a plurality of elastic arms that arrange into the annular form and contact this metal sleeve.

The utility model discloses an electric connecting device, this metal casing have one around this contact surface periphery and rather than the looks spaced around the face, and this sliding assembly still contains a shielding this contact tip and contacts this metal sleeve lead and connect the sleeve, should lead and connect sleeve contact should around the face and rather than electric connection.

The utility model discloses an electric connecting device, this slip subassembly still contain an insulating sleeve, and one lead and connect the terminal, this insulating sleeve can follow this endwise slip ground and wear to locate in this metal sleeve and supply this spring butt, should lead the terminal and wear to locate this insulating sleeve center and have this contact tip, and at least one contact this central conductive component's elasticity contact piece.

The utility model discloses an electric connecting device, this metal casing have one around enclose and rather than the looks spaced around the face in this contact surface periphery, this slip subassembly still contains one and leads and connects the sleeve, should lead and connect the sleeve to have one set locate this insulating sleeve and shield this lead the shielding barrel of terminal, at least one protruding this shielding barrel and contact this around the first contact bullet arm of face of locating, and at least one protruding this shielding barrel and contact this metal sleeve's second contact bullet arm of locating.

The utility model discloses an electric connecting device, this first contact bullet arm have at least one can contact this arbitrary position on the face of surrounding and rather than electric connection's butt tip.

The utility model discloses an electric connecting device, this insulator have one around this contact surface outside and between this contact surface and this around the surface.

The utility model discloses an electric connecting device, this central conductive component contain a conductive terminal, and this conductive terminal wears to locate this insulating assembly and is formed with one along this axially extended spout, and this slip subassembly is one can wear to locate in this spout with sliding and the protruding extension rod that stretches out this spout of part, and this spring sets up in this spout and the butt between this conductive terminal and this slip subassembly.

The utility model discloses an electric connecting device, this central conductive component still contain one set and locate this conductive terminal lead the union piece, should lead the union piece and have an at least elastic contact piece that contacts this sliding assembly, this conductive terminal of this lead union piece electric connection and this sliding assembly.

The utility model discloses an electric connecting device still contains a shell, and this metal sleeve is located to this outer cover.

The utility model discloses an electric connecting device still contains a shield cover, and this metal sleeve is located to this shield cover and is located this shell, and this metal sleeve contains the elastic arm of this shield cover of an at least contact.

The utility model discloses an electric connecting device, this metal sleeve still contain a plurality of elastic arms of arranging into the annular and contacting this metal casing outer peripheral face.

The utility model discloses an electric connecting device, this metal sleeve contain a first barrel, and a second barrel of being connected with this first barrel, this first barrel cover is located around this insulating subassembly outside, this second barrel has this elastic arm of this shield cover of contact, and a plurality of elastic arms of arranging into the annular form and contacting this metal casing outer peripheral face, this first barrel is made by a first metal sheet, this second barrel is made by a second metal sheet, the thickness of this second metal sheet is less than the thickness of this first metal sheet.

The utility model discloses an electric connecting device, this second connector still include an inner seal spare, and this inner seal spare sets up between this first barrel of this center conducting assembly and this metal sleeve.

The utility model discloses an electric connecting device, this shell are formed with a mounting hole, and this metal sleeve contains a first barrel, a second barrel, and a third barrel of connecting between this first barrel and this second barrel, and in this mounting hole was worn to locate by this third barrel, this second connector still included an inner seal spare, and this inner seal spare sets up between this center conductive component and this third barrel.

The utility model discloses an electric connecting device, this inner seal spare are a hot melt rubber circle.

The utility model discloses an electric connecting device, this shell are formed with a mounting hole, and this metal sleeve contains a first barrel, a second barrel, and a third barrel of connecting between this first barrel and this second barrel, and in this mounting hole was worn to locate by this third barrel, this second connector still included an outer seal spare, and this outer seal spare sets up between this shell and this third barrel.

The utility model discloses an electric connecting device, this third barrel are formed with a ring channel, and this external seal spare is one and sets up in this ring channel and closely the O type ring of butt between this shell and this third barrel.

The utility model discloses an electric connecting device, this first barrel cover are located around this insulating assembly outside, and this second barrel has a plurality of elastic arms of arranging into the annular and contacting this metal casing outer peripheral face.

The utility model discloses an electric connecting device, this shell have one define out the inner peripheral surface of this mounting hole, and a stop terminal surface of being connected with this inner peripheral surface, and this third barrel has a butt in the flange of this stop terminal surface.

The utility model discloses an electric connecting device, this shell have one be located the spacing flange of this mounting hole, and this third barrel has a spacing ring portion, and this spacing ring portion has a anchor ring of acceping in this spacing flange.

The utility model discloses an electric connecting device, this spacing ring portion still have one connect in this anchor ring and butt in the shoulder face of this spacing flange.

Another object of the present invention is to provide a connector for an electrical connection device that overcomes at least one of the disadvantages of the prior art.

Therefore, the connector of the electrical connection device of the present invention comprises an insulating member, a central conductive member, a metal sleeve, a sliding member, and a spring.

The central conductive component penetrates through the center of the insulating component and defines a central shaft. The metal sleeve is sleeved on the outer periphery of the insulating component. The sliding component is positioned in the metal sleeve and can slide relative to the central conducting component along an axial direction of the central shaft and is electrically connected with the central conducting component, and the sliding component comprises a contact end part. The spring applies elastic force to the sliding component towards the direction away from the insulating component.

The utility model discloses an electric connecting device's connector, this slip subassembly still contain an insulating sleeve, and one lead and connect the terminal, and this insulating sleeve can wear to locate in this metal sleeve and supply this spring butt along this endwise slip ground, should lead the terminal and wear to locate this insulating sleeve center and have this contact tip, and at least one contact this central conductive component's elasticity contact piece.

The utility model discloses an electric connecting device's connector, this slip subassembly still contain one and lead and connect the sleeve, should lead and connect the sleeve to have one set locate this insulating sleeve and shield this lead the shielding barrel of terminal, an at least protruding first contact bullet arm of locating this shielding barrel, and at least one protruding second contact bullet arm of locating this shielding barrel and contacting this metal sleeve.

The utility model discloses an electric connector, this central conductive component contain a conductive terminal, and this conductive terminal wears to locate this insulating assembly and is formed with a spout along this axial extension, and this sliding assembly is one can wear to locate in this spout with sliding and the protruding extension rod who stretches out this spout of part, and this spring sets up in this spout and the butt between this conductive terminal and this sliding assembly.

The utility model discloses an electric connector, this central conductive component still contain one set and locate this conductive terminal lead the union piece, should lead the union piece and have an at least elastic contact piece that contacts this sliding assembly, this conductive terminal of this lead union piece electric connection and this sliding assembly.

The utility model discloses an electric connecting device's connector, this metal sleeve contain a first barrel, and a second barrel of being connected with this first barrel, and this first barrel cover is located around this insulating assembly is outer, and this second barrel has an at least elastic arm, and this first barrel is made by a first metal sheet, and this second barrel is made by a second metal sheet, and the thickness of this second metal sheet is less than the thickness of this first metal sheet.

The utility model discloses an electric connecting device's connector still includes an inner seal spare, and this inner seal spare sets up between this first barrel of this center conducting assembly and this metal sleeve.

The utility model discloses an electric connecting device's connector, this metal sleeve contain a first barrel, a second barrel, and a third barrel of connecting between this first barrel and this second barrel, and this connector still includes an inner seal spare, and this inner seal spare sets up between this center conducting assembly and this third barrel.

The utility model discloses an electric connecting device's connector, this inner seal spare are a hot melt rubber circle.

The utility model discloses an electric connecting device's connector, this metal sleeve contain a first barrel, a second barrel, and a third barrel of connecting between this first barrel and this second barrel, and this connector still includes an outer seal, and this outer seal sets up in this third barrel.

The utility model discloses an electric connecting device's connector, this third barrel are formed with a ring channel, and this external seal spare is one and sets up the O type ring in this ring channel.

The utility model discloses an electric connecting device's connector, this insulating assembly is located to this first barrel cover periphery, and this second barrel has an at least elastic arm.

The utility model discloses an electric connecting device's connector, this third barrel have a spacing ring portion, and this spacing ring portion has a anchor ring, and a shoulder face of connecting in this anchor ring.

The technical effects of the utility model reside in that: the number of components on the first connector side can be reduced and the structure thereof can be simplified to improve the convenience of the components in manufacturing and assembling and reduce the manufacturing cost. In addition, the central conductive assembly and the sliding assembly are not influenced by the force perpendicular to the Z-axis direction. Furthermore, under the condition that the second connector has positional deviation, the contact end part can be ensured to stably contact with the contact surface and be electrically connected with the contact surface, and the metal sleeve or the metal sleeve can stably contact with the metal shell and be electrically connected with the metal shell through the conductive sleeve. Therefore, the use requirement of being able to absorb the positional deviation in any direction perpendicular to the Z axis can be satisfied.

Drawings

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

fig. 1 is an exploded perspective view of a first embodiment of the electrical connector of the present invention, illustrating the assembly relationship between a circuit board, a first connector, a housing, and a second connector;

FIG. 2 is a cross-sectional exploded view of the first embodiment;

fig. 3 is an exploded perspective view of the first connector and the second connector of the first embodiment;

FIG. 4 is an exploded perspective view from another perspective of FIG. 3;

FIG. 5 is an exploded perspective view of a slide assembly of the first embodiment;

FIG. 6 is a cross-sectional view of the first embodiment illustrating the second connector mated to the first connector;

fig. 7 is a schematic view of the first embodiment, illustrating a contact end portion of a lead terminal in a Z-axis and aligned with a center of a center terminal;

FIG. 8 is a schematic view of the first embodiment illustrating the contact tip spaced a distance from the Z-axis in the direction of an X-axis;

FIG. 9 is a schematic view of the first embodiment illustrating the contact end spaced a distance from the Z-axis in a Y-axis direction;

FIG. 10 is a schematic view of the first embodiment illustrating the contact end spaced a distance radially from the Z-axis;

fig. 11 is an exploded perspective view of a second embodiment of the electrical connector of the present invention;

fig. 12 is an exploded perspective view of the first and second connectors of the second embodiment;

FIG. 13 is a perspective view of a docking sleeve of the second embodiment;

FIG. 14 is a cross-sectional view of the second embodiment illustrating the second connector mated to the first connector;

fig. 15 is a schematic view of the second embodiment, illustrating the contact tip location on the Z-axis and aligned with the center, and a plurality of second contact spring arms of the docking sleeve contacting a surrounding surface of a metal housing;

fig. 16 is an exploded perspective view of a third embodiment of the electrical connector of the present invention;

FIG. 17 is a cross-sectional view of the third embodiment illustrating a shield in combination with the housing;

fig. 18 is an exploded perspective view of the first and second connectors of the third embodiment;

FIG. 19 is a cross-sectional view of the third embodiment illustrating the second connector mated to the first connector;

fig. 20 is a fragmentary exploded perspective view of a fourth embodiment of the electrical connector of the present invention;

fig. 21 is an exploded perspective view of the second connector of the fourth embodiment; and

fig. 22 is a cross-sectional view of the fourth embodiment.

Description of reference numerals:

100: electrical connection device

200: electrical connection device

300: electrical connection device

1: circuit board

2: first connector

21: insulating body

211: locating hole

212: surface of

22: center terminal

221: connecting surface

222: contact surface

23: metal shell

231: shell body

232: connecting sheet

233: elastic arm

234: connecting surface

235: surrounding surface

236: sleeve barrel

237: connecting sheet

24: plug-in space

3: outer casing

31: containing space

32: containing hole

33: mounting hole

34: connecting column

35: inner peripheral surface

36: end face of the stopper

37: limit flange

4: second connector

41: metal sleeve

411: barrel body

412: stop part

413: first end

414: second end

415: containing space

416: opening of the container

417: a first cylinder

418: second cylinder

419: first elastic arm

420: second elastic arm

42: insulating assembly

421: locating hole

422: inserting groove

410: third cylinder

4101: first stage

4102: second section

4103: peripheral surface

4104: flange

4105: annular groove

4106: limiting ring part

4107: ring surface

4108: shoulder noodle

43: center conductive assembly

431: joint part

432: contact part

433: connecting part

434: conductive terminal

435: guide connecting piece

436: sliding chute

437: shoulder surface of stopper

438: lantern ring

439: elastic contact piece

440: contact tip

44: spring

45: sliding assembly

46: insulating sleeve

461: barrel part

462: ring part

463: first end

464: second end

465: perforation

466: clamping groove

47: conduction terminal

471: ring piece

472: clamping block

473: bending spring plate

474: elastic contact piece

475: first end

476: second end

477: bullet piece body

478: contact bump

479: flat section

480: contact tip

48: guide connecting sleeve

481: shielding cylinder

482: first contact spring arm

483: second contact spring arm

484: first end

485: second end

486: first bending section

487: second bending section

488: flat part

489: abutting end part

490: inner seal

491: outer seal

5: shielding case

51: cover body

52: sleeve barrel

A: center shaft

C: center of a ship

W1: width of the ring

W2: width of

X: x axis

Y: y-axis

Z: z axis

Detailed Description

Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.

Referring to fig. 1 and 2, a first embodiment of the electrical connection device of the present invention is shown, the electrical connection device 100 is suitable for being applied in an electronic device, such as a driving recorder, a navigation device for a vehicle, a sound box for a vehicle, or a control panel for a vehicle. In the first embodiment, the electronic device is a driving recorder, but not limited thereto. The electrical connection device 100 includes a circuit board 1, a first connector 2, a housing 3, and a second connector 4.

The circuit board 1 is fixedly disposed on a cover (not shown), and a lens module (not shown) is mounted on a surface of the circuit board 1. The first connector 2 is exemplified by a socket connector disposed on the other surface of the circuit board 1 opposite to the lens module. The housing 3 is used to be assembled with the outer cover, and the housing 3 is formed with a receiving space 31, a receiving hole 32, and a mounting hole 33 communicating between the receiving space 31 and the receiving hole 32. The second connector 4 is exemplified by a plug connector inserted into the accommodating space 31, the accommodating hole 32, and the mounting hole 33. Of course, in other embodiments of the first embodiment, the first connector 2 may also be a plug connector, and the second connector 4 may also be a socket connector.

Referring to fig. 2, 3 and 4, the first connector 2 includes an insulating body 21, a center terminal 22, and a metal shell 23. The insulating body 21 is ring-shaped and is formed with a positioning hole 211 at the center. The center terminal 22 is inserted into the positioning hole 211 of the insulating body 21. The center terminal 22 is cylindrical and has a connection surface 221 and a contact surface 222 opposite to the connection surface 221. The connection surface 221 is soldered to the circuit board 1 by, for example, soldering. The contact surface 222 is a flat surface. In the first embodiment, the contact surface 222 is circular. Of course, the contact surface 222 may be designed in different shapes according to actual requirements, and may also be square. A center C of the contact surface 222 defining the center terminal 22 is located on a Z-axis and defines an X-axis perpendicular to the Z-axis and a Y-axis perpendicular to the Z-axis and the X-axis. The second connector 4 is inserted into the first connector 2 along the Z-axis direction. The metal shell 23 has a housing 231, a plurality of connecting pieces 232, and a plurality of elastic arms 233. The housing 231 is cylindrical and is sleeved around the outer periphery of the insulating body 21. The connecting pieces 232 are bent and extended outward from one end of the housing 231 and are soldered to the circuit board 1 by, for example, soldering. The elastic arms 233 are protruded from the other end of the housing 231 opposite to the connecting pieces 232, and the elastic arms 233 are spaced from each other and arranged in a ring shape and protruded out of the contact surfaces 222 of the insulating body 21 and the central terminal 22. The elastic arms 233 of the metal shell 23, the insulating body 21 and the central terminal 22 together define a plug space 24 for the second connector 4 to plug into.

The second connector 4 includes a metal sleeve 41, an insulating member 42, a central conductive member 43, a spring 44, and a sliding member 45. The metal sleeve 41 is inserted into the accommodating space 31, the accommodating hole 32 and the mounting hole 33. The metal sleeve 41 has a cylinder 411 and a stopper 412. The cylinder 411 has a first end 413 and a second end 414 opposite to the first end 413. The first end 413 and the second end 414 are respectively located in the accommodating space 31 and the accommodating hole 32. The stop 412 is a flange extending radially inward from the first end 413. The cylinder 411 and the stopper 412 together define a receiving space 415 open at the second end 414, and the stopper 412 defines an opening 416 communicating with the receiving space 415.

The insulating element 42 is disposed in the accommodating space 415 and adjacent to the second end 414, and the insulating element 42 defines a positioning hole 421 at the center and a slot 422 communicated with the positioning hole 421. The slot 422 is used for a mating connector (not shown).

The central conductive element 43 is a conductive terminal in the shape of a needle bar and passing through the center of the insulating element 42, and the central conductive element 43 defines a central axis a parallel to the Z axis. The central conductive element 43 has a joint portion 431, a contact portion 432, and a connecting portion 433. The engaging portion 431 is inserted into and clamped in the positioning hole 421 of the insulating assembly 42. The contact portion 432 and the connection portion 433 are respectively protruded at two opposite ends of the connection portion 431, the contact portion 432 is located in the accommodating space 415 and adjacent to the opening 416, and the connection portion 433 is located in the slot 422 for electrically connecting the mating connector.

Referring to fig. 2, 4 and 5, the sliding element 45 includes an insulating sleeve 46 and a conductive terminal 47. The insulating sleeve 46 is slidably disposed in the accommodating space 415 and the opening 416 of the metal sleeve 41 along the axial direction of the central axis a, and the insulating sleeve 46 has a cylindrical portion 461 and a ring portion 462. The tube 461 passes through the opening 416 and partially protrudes out of the stopper 412. The barrel 461 has a first end 463 and a second end 464 opposite the first end 463. The cylindrical portion 461 is formed with a through hole 465 and a locking groove 466. A bore 465 extends between the first end 463 and the second end 464. The locking groove 466 is recessed from the first end 463 toward the second end 464 and spaced apart from the second end 464, and the locking groove 466 is connected to one side of the through hole 465. The ring portion 462 is protruded from the outer peripheral surface of the cylindrical portion 461 radially outward and is adjacent to and spaced apart from the second end 464, and the ring portion 462 is located in the accommodating space 415 for contacting the stop portion 412 and being stopped by the stop portion 412 to prevent the insulating sleeve 46 from being separated from the accommodating space 415 through the opening 416.

The conductive terminal 47 is made of a metal conductive material and has a ring 471, a latch 472, a bent spring 473, and a plurality of elastic contact pieces 474. The ring plate 471 is disposed through the through hole 465 and has a first end 475 and a second end 476 opposite to the first end 475. Two opposite sides of the ring 471 are adjacent and respectively bent and extended in the same direction to form two protrusions, and the protrusions together form a latch 472. The latch 472 is latched in the latch 466, so that the conductive terminal 47 is prevented from sliding relative to the insulating sleeve 46 along the axial direction of the central axis a, and the conductive terminal 47 is prevented from rotating relative to the insulating sleeve 46.

The bent spring 473 has a spring 477 and a contact lug 478. The blade 477 extends a distance from the first end 475 toward the second end 476 and then bends laterally to form an L-shaped structure. Blade 477 has a flat section 479 spaced a distance from first end 475. The contact protrusion 478 is protruded from the outer surface of the flat section 479, has an arc shape, and has a contact end 480 located at the center for contacting the contact surface 222 of the center terminal 22. The contact end 480 contacts and electrically connects with the contact surface 222 in a point contact manner. The elastic contact pieces 474 are protruded from the second end 476 of the ring piece 471 and arranged in a ring shape at intervals, and the elastic contact pieces 474 contact and electrically connect with the outer peripheral surface of the contact portion 432 of the central conductive element 43. Specifically, the elastic contact pieces 474 are pressed by the contact portion 432 to be spread outward and slightly deformed relative to the second end 476 of the ring piece 471, and accumulate elastic force, so that the elastic contact pieces 474 can elastically contact the outer peripheral surface of the contact portion 432. Since the elastic contact pieces 474 are arranged in a ring shape, the elastic contact pieces 474 can hold the outer peripheral surface of the contact portion 432 at the same time in the state of elastic contact. Therefore, the stability of the contact between the elastic contact pieces 474 and the contact portion 432 can be ensured. Of course, the number of the elastic contact pieces 474 is not limited to one, and the outer peripheral surface of the contact portion 432 is simply brought into elastic contact with one elastic contact piece 474.

It should be noted that, since the contact end portion 480 contacts the contact surface 222 in a point contact manner, and the area of the contact surface 222 is larger than that of the contact end portion 480, the contact end portion 480 can contact any position on the contact surface 222 to achieve an electrical connection function therewith. The rounded design of the contact surface 222 provides a greater contact range for the contact end 480. Thus, the contact tip 480 can be allowed to float in any direction perpendicular to the Z-axis within the contact range defined by the contact surface 222. That is, the contact end 480 can float along two radial directions, i.e., the X axis and the Y axis, passing through the center C of the contact surface 222 to contact the contact surface 222, and can float along a plurality of other radial directions R (shown in fig. 10) that are not parallel to the X axis and the Y axis to contact the contact surface 222.

Referring to fig. 2 and 3, the spring 44 is a compression spring, and two ends of the compression spring abut against the insulating element 42 and the ring portion 462 of the insulating sleeve 46 respectively, so as to apply an elastic force to the insulating sleeve 46 toward the opening 416 (i.e., away from the insulating element 42). Therefore, the ring portion 462 of the insulating sleeve 46 abuts against and is stopped by the stopping portion 412 of the metal sleeve 41, so that the sliding element 45 can be maintained at an initial position as shown in fig. 2.

The following will describe the manner in which the second connector 4 is plugged into the first connector 2:

referring to fig. 2 and 6, the sliding member 45 of the second connector 4 is aligned with the plugging space 24 of the first connector 2, and then the second connector 4 is moved toward the plugging space 24 along the Z-axis direction. The cylinder 411 of the metal sleeve 41 contacts the inner edge of the elastic arms 233 and expands the inner edge outwards during the movement of the second connector 4, so that the elastic arms 233 deform and accumulate elastic force. The contact end 480 of the docking terminal 47 is blocked by the contact surface 222 when it contacts the contact surface, so that the sliding assembly 45 cannot move further. The metal sleeve 41 is driven by the housing 3 to move continuously along the Z-axis direction, so that the sliding element 45 slides relative to the metal sleeve 41 and the central conductive element 43 and retracts to the accommodating space 415. In the sliding assembly 45, the insulating sleeve 46 compresses the spring 44 to deform and accumulate the elastic force during the sliding process, and the elastic contact pieces 474 of the connection terminal 47 slide on the contact part 432 in a state of elastically contacting and clamping the contact part 432.

When the housing 3 is blocked by the cover in contact therewith, the second connector 4 cannot be moved further and is positioned in a plugged position as shown in fig. 6. At this time, the slide member 45 is pressed toward the first connector 2 by the elastic force accumulated in the spring 44, and the guide terminal 47 can transmit the elastic force to the contact projection 478 through the blade body 477, so that the contact end 480 is pressed against the contact surface 222. The conductive terminal 47 is always kept in a stable contact state with the contact portion 432 by elastically contacting and holding the contact portion 432 with the elastic contact pieces 474. Therefore, the conductive terminal 47 can stably electrically connect the center conductive member 43 and the center terminal 22 for electrical signal transmission. In addition, the metal shell 23 elastically contacts or clamps the metal sleeve 41 through the elastic arms 233 and is electrically connected thereto, thereby forming a grounding path.

The spring 44 is compressed to allow the sliding member 45 to slide relative to the metal sleeve 41 and the central conductive member 43 in the Z-axis direction, so that the positional deviation in the Z-axis direction when the second connector 4 is plugged into the first connector 2 can be absorbed. Therefore, the assembling position deviation caused by tolerance accumulation of the housing 3 and the cover in the Z-axis direction can be overcome to affect the insertion of the second connector 4, so as to ensure that the contact end 480 can stably contact and electrically connect with the contact surface 222.

Referring to fig. 6 and 7, in the process of plugging the second connector 4 to the first connector 2, if the contact ends 480 of the conductive terminals 47 are located on the Z axis (as shown in fig. 2) and there is no positional deviation on the X axis, the Y axis, and other radial directions R that are not parallel to the X axis and the Y axis, the contact ends 480 are aligned with the center C of the contact surface 222 as shown in fig. 6 and 7. At this time, the elastic arms 233 all elastically contact the metal sleeve 41 and collectively hold the cylinder 411 of the metal sleeve 41.

Referring to fig. 2 and 8, in the process of plugging the second connector 4 into the first connector 2, if the contact end 480 corresponds to the contact surface 222 but is spaced from the Z axis in the X axis direction, the cylinder 411 of the metal sleeve 41 is biased to the corresponding side of the elastic arms 233 to expand the elastic arms to a larger extent. As the distance between the contact end 480 and the Z axis in the X axis direction is larger, the other opposite side of the elastic arms 233 may have a portion of the elastic arms 233 not contacting the cylinder 411. The corresponding elastic arm 233 in contact with the cylinder 411 of the elastic arms 233 is expanded and deformed to allow the second connector 4 to float in the X-axis direction with respect to the first connector 2, so that positional deviation in the X-axis direction when the second connector 4 is plugged can be absorbed. Therefore, it is possible to overcome the influence of the deviation of the assembly position caused by the tolerance accumulation of the housing 3 and the outer cover in the X-axis direction on the insertion of the second connector 4. Taking fig. 8 as an example, the contact end 480 is adjacent to the outer periphery of the contact surface 222, so that at least one of the elastic arms 233 does not contact the cylinder 411, in this state, only the corresponding elastic arm 233 contacting the cylinder 411 elastically contacts the cylinder 411, and the elastic arms 233 do not commonly hold the cylinder 411.

Referring to fig. 2 and 9, in the process of plugging the second connector 4 into the first connector 2, if the contact end 480 corresponds to the contact surface 222 but is spaced from the Z axis in the Y axis direction, the cylinder 411 of the metal sleeve 41 is biased to the corresponding side of the elastic arms 233 to expand the elastic arms to a larger extent. The corresponding elastic arm 233 in contact with the cylinder 411 of the elastic arms 233 is expanded and deformed to allow the second connector 4 to float in the Y-axis direction with respect to the first connector 2, so that positional deviation in the Y-axis direction when the second connector 4 is plugged can be absorbed. Therefore, it is possible to overcome the influence of the deviation of the assembly position caused by the tolerance accumulation of the housing 3 and the cover in the Y-axis direction on the insertion of the second connector 4.

Referring to fig. 2 and 10, during the process of plugging the second connector 4 into the first connector 2, if the contact end 480 corresponds to the contact surface 222 but is spaced from the Z axis in one of the radial directions R which is not parallel to the X axis and the Y axis, the cylinder 411 of the metal sleeve 41 is biased to one side of the elastic arms 233 to expand the elastic arms outwardly. The second connector 4 is allowed to float in the radial direction R with respect to the first connector 2 by the corresponding one 233 of the elastic arms 233 contacting the cylindrical body 411 being expanded and deformed, so that positional deviation in the radial direction R when the second connector 4 is plugged can be absorbed. Therefore, it is possible to overcome the influence of the deviation of the assembly position caused by the tolerance accumulation of the housing 3 and the outer cover in the radial direction R on the insertion of the second connector 4. It should be noted that the radial direction R drawn in fig. 10 is only an example of one direction passing through the center C of the contact surface 222, and the radial direction R may be any other radial direction R indicated by an imaginary line arrow drawn in fig. 10, and is not limited to the radial direction R indicated by a solid line arrow.

By the above-mentioned structural design for absorbing the positional deviation of the second connector 4 along the X-axis direction, the Y-axis direction, or the radial direction R, it is ensured that the contact end portion 480 stably contacts and is electrically connected to the contact surface 222 and the metal sleeve 41 stably contacts and is electrically connected to the elastic arms 233 under the condition that the second connector 4 has the positional deviation. Therefore, the use requirement of being able to absorb the positional deviation in any direction perpendicular to the Z axis can be satisfied.

In addition, the sliding element 45 can slide along the axial direction of the central axis a of the central conductive element 43 and is electrically connected with the central conductive element, and the connection terminal 47 of the sliding element 45 is in contact with the contact surface 222 through the contact end 480 and is electrically connected with the contact surface, so that the electrical connection device 100 does not need to be provided with a shell movable part, a floating spring body and other structures in the prior art on the first connector 2 side, the number of components on the first connector 2 side can be reduced, the structure can be simplified, the convenience of component manufacturing and assembling can be improved, and the manufacturing cost can be reduced.

Furthermore, since the contact end 480 is in contact with and electrically connected to the flat contact surface 222 in a point contact manner, rather than being held by the elastic holding structure on the socket side, when the second connector 4 floats along the X-axis direction, the Y-axis direction, or the radial direction R, the central conductive element 43 and the lead terminal 47 are not affected by the holding force applied in the above directions.

Referring to fig. 11, which is a second embodiment of the electrical connector of the present invention, the overall structure and the plugging manner of the electrical connector 200 are substantially the same as those of the first embodiment, and the difference lies in the first connector 2 and the second connector 4.

Referring to fig. 12 and 14, the insulative housing 21 of the first connector 2 has a surface 212 with a circular ring shape surrounding the outer periphery of the contact surface 222. The metal shell 23 is circular and has a connecting surface 234 and a surrounding surface 235 opposite to the connecting surface 234. The connection face 234 is soldered to the circuit board 1 by, for example, soldering. The surrounding surface 235 is circular and surrounds the outer periphery of the surface 212 and the contact surface 222. The surface 212 and the surrounding surface 235 are flat and planar, and the height of the surface 212 is not higher than the height of the contact surface 222 and the surrounding surface 235. Specifically, the surface 212 of the second embodiment is flush and coplanar with the height of the contact surface 222 and the surrounding surface 235. In addition, in other embodiments of the second embodiment, the contact surface 222 is not limited to be circular, and the surface 212 and the surrounding surface 235 are not limited to be circular, and when the contact surface 222 is designed to be square, for example, the surface 212 and the surrounding surface 235 can be designed to be square-ring shape in cooperation with the square contact surface 222.

The metal sleeve 41 has a plurality of stop portions 412, each stop portion 412 is a stop piece extending from the first end 413 to be bent inward for stopping the ring portion 462 of the insulating sleeve 46. The outer peripheral surface of the ring portion 462 of the insulating sleeve 46 is recessed to form a plurality of positioning grooves 467 spaced from each other, and each positioning groove 467 is long and has an open end adjacent to the first end 463.

Referring to fig. 13, 14 and 15, the sliding assembly 45 further includes a conductive sleeve 48, and the conductive sleeve 48 is made of a metal conductive material and has a shielding cylinder 481, a plurality of first contact spring arms 482 and a plurality of second contact spring arms 483. The shielding cylinder 481 is sleeved on the cylindrical portion 461 of the insulating sleeve 46 and shields the conductive terminal 47, and the shielding cylinder 481 has a first end 484 and a second end 485 opposite to the first end 484. The first contact spring arms 482 are convexly disposed at the first end 484 and spaced apart from each other, and each first contact spring arm 482 has a first bending section 486 and two second bending sections 487. The first bending section 486 extends from the first end 484 toward the direction away from the second end 485 for a distance, and then bends outward laterally for a distance, so as to form an L-shaped structure. The first bending part 486 has a flat portion 488 located outside the shield cylinder 481, and the flat portion 488 has an arc shape and a curvature identical to that of the shield cylinder 481. The second bending sections 487 are connected to two opposite sides of the flat portion 488, and each second bending section 487 is bent and extended in a direction away from the corresponding side of the flat portion 488 and in a direction away from the first end 484. Each second inflection 487 has an elongated abutting end 489 for contacting the surrounding surface 235 of the metal shell 23. In the second embodiment, a width W1 of the surrounding surface 235 is greater than a width W2 of the abutting end 489, so that the surrounding surface 235 allows the abutting end 489 to move within a width range defined by the width W1, thereby providing a larger contact range for the abutting end 489 to contact, so that the abutting end 489 can contact any position on the surrounding surface 235 to be electrically connected therewith.

Each second contact elastic arm 483 is convexly arranged at the second end 485 and is spaced from each other, and each second contact elastic arm 483 extends for a certain distance from the second end 485 in the direction away from the first end 484, and then is folded outwards and reversely in the direction of the second end 485 to form an inverted U-shaped structure. Each second contact elastic arm 483 is engaged with the corresponding positioning groove 467 and contacts the inner peripheral surface of the cylinder 411 of the metal sleeve 41. Specifically, each of the second contact elastic arms 483 is pressed by the inner circumferential surface of the cylinder 411 to be slightly deformed and accumulate elastic force, so that the second contact elastic arms 483 can elastically contact the inner circumferential surface of the cylinder 411 to ensure stability of contact between the second contact elastic arms 483 and the cylinder 411.

Referring to fig. 14 and 15, when the second connector 4 is plugged into the first connector 2 and positioned at the plugging position shown in fig. 14, the abutting ends 489 of the second bending sections 487 of the first contact elastic arms 482 of the conductive sleeve 48 contact and are electrically connected with the surrounding surface 235 of the metal shell 23, so that the metal sleeve 41 is electrically connected with the metal shell 23 through the conductive sleeve 48 and forms a ground path together. Specifically, during the plugging process, the abutting ends 489 are blocked by the surrounding surface 235, and the second bent sections 487 are slightly deformed relative to the flat section 488 and accumulate elastic force, so that the abutting ends 489 can elastically contact the surrounding surface 235, thereby ensuring the stability of the contact between the abutting ends 489 and the surrounding surface 235.

When the second connector 4 is misaligned in the X-axis direction, the Y-axis direction, or the radial direction R that is not parallel to the X-axis and the Y-axis when being plugged, the abutting ends 489 can float in the X-axis direction, the Y-axis direction, or the radial direction R to contact the surrounding surface 235 by the design that the ring width W1 of the surrounding surface 235 of the metal shell 23 is greater than the width W2 of the abutting ends 489 of the first contact spring arms 482. Therefore, it is ensured that each of the abutting ends 489 can stably contact the surrounding surface 235 and be electrically connected thereto in a state where the second connector 4 is misaligned. In the second embodiment, the height of the surface 212 is, for example, aligned and coplanar with the height of the contact surface 222 and the surrounding surface 235, but the height of the surface 212 may also be higher than the height of the contact surface 222 and the surrounding surface 235, so that the insulating body 21 can protrude out of the contact surface 222 and the surrounding surface 235 to achieve the function of separating the conductive terminal 47 and the first contact spring arms 482.

In addition, the conductive sleeve 48 for grounding is disposed on the insulating sleeve 46, and the conductive sleeve 48 is in contact with and electrically connected to the flat surrounding surface 235 through the abutting ends 489 of the first contact elastic arms 482, so that the conductive sleeve 48 and the metal shell 23 are electrically connected together without being clamped by an elastic clamping structure. Therefore, when the second connector 4 floats in the aforementioned direction, the circuit board 1 is not affected by the clamping force applied in the aforementioned direction. Further, since the conductive sleeve 48 is fixed to the insulating sleeve 46 and can slide along the insulating sleeve 46 in the Z-axis direction, the shield cylindrical body 481 of the conductive sleeve 48 is always kept in the state of the shield conductive terminal 47, and therefore the shielding effect is excellent.

In other embodiments of the second embodiment, the number of the first contact spring arms 482, the number of the second contact spring arms 483, and the number of the abutting ends 489 of each first contact spring arm 482 may be one, but not limited to a plurality of ones.

Referring to fig. 16, which is a third embodiment of the electrical connector of the present invention, the overall structure and the plugging manner of the electrical connector 300 are substantially the same as those of the first embodiment, and the differences are the first connector 2, the housing 3 and the second connector 4.

Referring to fig. 16 and 17, the housing 3 of the third embodiment is an insulating housing made of an insulating material such as plastic. Of course, in other embodiments, the housing 3 may also be a metal housing. The electrical connection device 300 further includes a shielding cover 5, the shielding cover 5 is made of, for example, a metal material, and the shielding cover 5 is disposed in the accommodating space 31 and fixedly coupled to the housing 3. The shield cover 5 and the housing 3 are integrally molded by insert injection molding (insert molding) or over molding (overmolding), for example, and the shield cover 5 is fixed to the plurality of connection posts 34 of the housing 3. Of course, the shielding case 5 may be fixedly combined by other means such as a screw lock or a snap. The shield 5 includes a housing 51 and a sleeve 52. The cover 51 is fixed to the connecting posts 34. The sleeve 52 is protruded from one end of the cover 51 and is hollow for being sleeved on the metal sleeve 41 of the second connector 4.

Referring to fig. 16, 18 and 19, the insulating body 21 is in a column shape and is formed with a positioning hole 211. The center terminal 22 has two cylinders of different outer diameters. The metal shell 23 has a sleeve 236 and two connecting tabs 237. The sleeve 236 is cylindrical and is sleeved around the insulating body 21. The connecting pieces 237 are bent outward from one end of the sleeve 236.

The metal sleeve 41 includes a first cylinder 417, and a second cylinder 418 connected to the first cylinder 417. The first cylinder 417 and the second cylinder 418 are respectively inserted into the mounting hole 33 and the sleeve 52. The first cylinder 417 is disposed around the insulating member 42, and a portion of the second cylinder 418 is disposed on the first cylinder 417.

The second cylinder 418 has a plurality of first resilient arms 419 distal from the first cylinder 417 and a plurality of second resilient arms 420 proximal to the first cylinder 417. The first resilient arms 419 are spaced apart from each other and arranged in a ring shape to resiliently contact or hold the outer circumferential surface of the sleeve 236 of the metal shell 23. The second elastic arms 420 elastically contact the inner wall surface of the sleeve 52 and are electrically connected thereto. The second cylinder 418 and the first sleeve 417 define an accommodating space 415, and the first elastic arms 419 of the second cylinder 418 define an opening 416.

Specifically, the first cylinder 417 is formed by stamping and bending a first metal plate, and the second cylinder 418 is formed by stamping and bending a second metal plate, which has a thickness smaller than that of the first metal plate. Therefore, the first cylinder 417 made of the first metal plate having a relatively large thickness has a relatively large structural strength, so that the strength when the cable is butted thereto can be improved. The second cylinder 418 made of a second metal plate with a smaller thickness has better elasticity of the first elastic arms 419 and the second elastic arms 420, so as to improve the elasticity of the contact sleeve 236 and the contact sleeve 52.

The central conductive element 43 includes a conductive terminal 434 and a conductive connector 435. The conductive terminal 434 has a joint portion 431, a contact portion 432, and a connection portion 433. The joint portion 431 is in a round rod shape and is inserted and clamped in the positioning hole 421 of the insulating assembly 42. The contact portion 432 protrudes from the insulating member 42, and an end of the contact portion 432 opposite to the engagement portion 431 is recessed to form a sliding groove 436 extending in the axial direction of the central axis a. The contact portion 432 has an annular stop shoulder surface 437. The conductive connector 435 is made of a metal conductive material and has a collar 438 and a plurality of resilient contact pieces 439. The collar 438 is secured to the contact portion 432, such as by an interference fit, and abuts the stop shoulder surface 437. The resilient contact members 439 are disposed at one end of the collar 438, and each resilient contact member 439 has a contact end 440, and the contact end 440 is spaced from the opening of the sliding slot 436.

The sliding component 45 is a guiding rod slidably disposed in the sliding groove 436 and partially protruding out of the sliding groove 436, and is made of a metal conductive material. The contact ends 440 of the resilient contact pieces 439 of the guide 435 contact the outer peripheral surface of the slide member 45. Specifically, the elastic contact pieces 439 are pressed and spread outward by the sliding assembly 45 to be slightly deformed relative to the collar 438 and accumulate elastic force, so that the elastic contact pieces 439 can elastically contact the outer peripheral surface of the sliding assembly 45. Since the elastic contact pieces 439 are arranged in a ring shape, the elastic contact pieces 439 can hold the outer peripheral surface of the slide unit 45 at the same time in the elastic contact state. Therefore, the contact stability between the elastic contact pieces 439 and the sliding element 45 can be ensured, so that the conductive terminals 434 can be stably electrically connected to the sliding element 45 through the guide 435. The slide assembly 45 is arcuate in shape at its distal end and has a contact end 480. Of course, the number of the elastic contact pieces 439 is not limited to one, and the outer peripheral surface of the sliding member 45 is simply contacted in an elastic contact manner in a state where one elastic contact piece 439 is provided.

The spring 44 is disposed in the sliding groove 436, and two ends of the spring respectively abut against the contact portion 432 of the conductive terminal 434 and the sliding element 45, so as to apply an elastic force to the sliding element 45 toward the opening of the sliding groove 436, so that the sliding element 45 is kept at a position where the contact end 480 protrudes out of the contact ends 440.

The second connector 4 further includes an inner sealing member 490, and the inner sealing member 490 is a hot-melt adhesive ring sleeved on the conductive terminal 434 of the central conductive member 43, but not limited thereto. The inner sealing member 490 is disposed between the outer periphery of the conductive terminal 434 of the central conductive assembly 43 and the inner peripheral surface of the first cylinder 417 of the metal sleeve 41, so as to achieve a waterproof sealing effect between the first cylinder 417 and the conductive terminal 434.

During the process of inserting the second connector 4 into the first connector 2, the first connector 2 is inserted into the accommodating space 415 through the opening 416, and the inner edges of the first elastic arms 419 contact the outer peripheral surface of the sleeve 236 and are expanded outward. Subsequently, the contact end 480 of the sliding assembly 45 contacts and is blocked by the contact surface 222 such that the sliding assembly 45 cannot continue to move. The metal sleeve 41 is further moved along the Z-axis direction by the housing 3, so that the sliding component 45 slides relative to the central conductive component 43 and contracts to the sliding slot 436 to compress the spring 44. When the second connector 4 is positioned at the plugging position shown in fig. 19, the metal sleeve 41 is electrically connected between the shielding case 5 and the metal shell 23 to jointly form a grounding path, and the cover 51 of the shielding case 5 covers the circuit board 1 and the first connector 2 to perform a good electromagnetic shielding (EMI shielding) function.

The spring 44 is compressed to allow the sliding member 45 to slide relative to the central conductive member 43 in the Z-axis direction, so that positional deviation in the Z-axis direction when the second connector 4 is plugged can be absorbed. In addition, the positional deviation in the X-axis direction, the Y-axis direction, or the radial direction R (as shown in fig. 10) which is not parallel to the X-axis and not parallel to the Y-axis when the second connector 4 is plugged can be absorbed by the way that the first elastic arms 419 of the metal sleeve 41 elastically contact the sleeve 236 of the metal shell 23.

Referring to fig. 20, which is a fourth embodiment of the electrical connector 400 of the present invention, the overall structure and the plugging manner of the electrical connector are substantially the same as those of the third embodiment, except for the housing 3 and the second connector 4.

Referring to fig. 20, 21 and 22, the housing 3 has an inner circumferential surface 35 defining the mounting hole 33, a stop end surface 36 connected to the inner circumferential surface 35 and facing the accommodating space 31, and a limit flange 37 radially inwardly protruding from the inner circumferential surface 35 and adjacent to the accommodating hole 32. The metal sleeve 41 includes a first cylinder 417, a second cylinder 418, and a third cylinder 410 connected between the first cylinder 417 and the second cylinder 418. The first cylinder 417 is disposed around the outer periphery of the insulating element 42, the second cylinder 418 has a plurality of elastic arms 419 arranged in a ring shape and contacting the outer periphery of the metal shell 23, the third cylinder 410 is disposed in the mounting hole 33, and the third cylinder 410 has a first section 4101 and a second section 4102. The first section 4101 is sleeved on the first cylinder 417, and the first section 4101 and the first cylinder 417 are fixed together by, for example, laser spot welding. The first section 4101 has an outer peripheral surface 4103, and a flange 4104 projecting radially outward from the outer peripheral surface 4103. The outer peripheral surface 4103 is recessed radially inward to form an annular groove 4105. The first section 4101 further has a limit ring 4106 at an end opposite to the flange 4104, the limit ring 4106 having an annular surface 4107 with an outer diameter smaller than that of the outer peripheral surface 4103, and a shoulder surface 4108 connected between the annular surface 4107 and the outer peripheral surface 4103. The ring surface 4107 is received within the stop flange 37. It is noted that the third cylinder 410 can be abutted against the stop end surface 36 and/or the shoulder surface 4108 is abutted against the limit flange 37 through the flange 4104 to limit the depth of the third cylinder 410 penetrating the installation hole 33. The second section 4102 is connected to one end of the first section 4101 and is inserted into the second cylinder 418, and the second section 4102 and the second cylinder 418 are fixed together by, for example, laser spot welding. Preferably, the third cylinder 410 is a vehicle product.

The second connector 4 further comprises an inner seal 490 and an outer seal 491. The inner sealing element 490 is a hot-melt rubber ring sleeved on the conductive terminal 434 of the central conductive element 43, but not limited thereto, and the inner sealing element 490 may also be a rubber ring formed by glue filling or a plug (e.g., an O-ring) sleeved on the central conductive element 43. The inner sealing member 490 is disposed between the central conductive element 43 and the third cylinder 410, and in the fourth embodiment, the inner sealing member 490 is disposed between the outer periphery of the conductive terminal 434 of the central conductive element 43 and the inner peripheral surface of the first section 4101 of the third cylinder 410 for achieving a waterproof sealing effect between the first section 4101 and the conductive terminal 434. The outer sealing member 491 is disposed between the housing 3 and the third cylinder 410, and in the fourth embodiment, the outer sealing member 491 is an O-ring disposed in the annular groove 4105 and tightly abutted between the inner peripheral surface 35 and the first section 4101, so as to achieve the waterproof sealing effect between the inner peripheral surface 35 and the first section 4101.

In summary, the electrical connection devices 100, 200, 300, and 400 of the embodiments can slide along the axial direction of the central axis a of the central conductive element 43 through the sliding element 45 and electrically connect with the central axis a, and the sliding element 45 contacts with the contact surface 222 through the contact end 480 and electrically connects with the contact surface, so as to reduce the number of components on the first connector 2 side and simplify the structure thereof, thereby improving the convenience of component manufacturing and assembling and reducing the manufacturing cost. In addition, after the second connector 4 is plugged, the central conductive member 43 and the sliding member 45 of the electrical connection device 100, 200, 300, 400, or the circuit board 1 of the electrical connection device 200, are not affected by a force perpendicular to the Z-axis direction. Further, by the structural design for absorbing the positional deviation of the second connector 4 in the X-axis direction, the Y-axis direction, or the radial direction R, it is ensured that the contact end portion 480 stably contacts and electrically connects with the contact surface 222 in the case where the second connector 4 has a positional deviation, and the metal sleeve 41 itself or the metal sleeve 41 can stably contact and electrically connect with the metal housing 23 through the conductive sleeve 48. Therefore, the use requirement of absorbing the position deviation along any direction perpendicular to the Z axis can be met, and the purpose of the utility model can be realized really.

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 according to the claims and the patent specification of the present invention are still included in the scope of the present invention.

Claims (36)

1. An electrical connection device, comprising:

a first connector, comprising:

an insulating body;

a central terminal, which is arranged in the center of the insulating body in a penetrating way and is provided with a contact surface;

a metal shell, which is sleeved on the outer periphery of the insulation body;

a second connector, inserted in the first connector and comprising:

an insulating assembly;

a central conductive component, which is arranged in the center of the insulating component in a penetrating way and defines a central shaft;

a metal sleeve, which is sleeved on the outer periphery of the insulating component;

a sliding component which is positioned in the metal sleeve and can slide relative to the central conductive component along an axial direction of the central shaft and is electrically connected with the central conductive component, wherein the sliding component comprises a contact end part which is contacted with the contact surface and is electrically connected with the contact surface; and

and the spring applies elastic force to the sliding component towards the direction of the first connector so that the contact end part is tightly propped against the contact surface.

2. The electrical connection device as claimed in claim 1, wherein the contact end portion is capable of contacting any position on the contact surface to electrically connect therewith.

3. The electrical connection device as claimed in claim 1, wherein the metal housing has a plurality of resilient arms arranged in a ring shape and contacting the metal sleeve.

4. The electrical connection device as claimed in claim 1 wherein the metal housing has a surrounding surface surrounding and spaced from the outer periphery of the contact surface, the sliding assembly further comprising a docking sleeve shielding the contact end and contacting the metal sleeve, the docking sleeve contacting and electrically connecting with the surrounding surface.

5. The electrical connection device as claimed in claim 1, wherein the sliding assembly further comprises an insulating sleeve and a conductive terminal, the insulating sleeve is slidably disposed in the metal sleeve along the axial direction and is abutted by the spring, the conductive terminal is disposed in the center of the insulating sleeve and has the contact end, and at least one elastic contact piece contacting the central conductive assembly.

6. The electrical connector of claim 5, wherein the metal shell has a surrounding surface surrounding and spaced apart from the outer periphery of the contact surface, the sliding assembly further comprises a docking sleeve having a shielding cylinder fitted over the insulating sleeve and shielding the docking terminal, at least one first contact spring arm protruding from the shielding cylinder and contacting the surrounding surface, and at least one second contact spring arm protruding from the shielding cylinder and contacting the metal sleeve.

7. The electrical connector as claimed in claim 6, wherein the first contact spring arm has at least one abutting end portion capable of contacting any position on the surrounding surface to electrically connect therewith.

8. The electrical connection device as claimed in claim 6 wherein the insulative body has a surface surrounding the outer periphery of the contact surface and between the contact surface and the surrounding surface.

9. The electrical connector as claimed in claim 1, wherein the central conductive member comprises a conductive terminal passing through the insulating member and forming a sliding slot extending along the axial direction, the sliding member is a guiding rod passing through the sliding slot and partially protruding out of the sliding slot, and the spring is disposed in the sliding slot and abuts between the conductive terminal and the sliding member.

10. The electrical connection device as claimed in claim 9, wherein the central conductive member further comprises a conductive member disposed on the conductive terminal, the conductive member having at least one resilient contact piece contacting the sliding member, the conductive member electrically connecting the conductive terminal and the sliding member.

11. The electrical connection device as claimed in claim 1 further comprising a housing, the housing being disposed around the metal sleeve.

12. The electrical connection device as claimed in claim 11 further comprising a shield disposed around the metal sleeve and within the housing, the metal sleeve comprising at least one resilient arm contacting the shield.

13. The electrical connection device as claimed in claim 12, wherein the metal sleeve further comprises a plurality of elastic arms arranged in a ring shape and contacting an outer circumferential surface of the metal housing.

14. The electrical connection device as claimed in claim 12, wherein the metal sleeve comprises a first cylindrical body and a second cylindrical body connected to the first cylindrical body, the first cylindrical body is disposed around the outer periphery of the insulating member, the second cylindrical body has the elastic arms contacting the shield case and a plurality of elastic arms arranged in a ring shape and contacting the outer periphery of the metal housing, the first cylindrical body is made of a first metal plate, the second cylindrical body is made of a second metal plate, and the thickness of the second metal plate is smaller than that of the first metal plate.

15. The electrical connection device as claimed in claim 14 wherein the second connector further comprises an inner seal disposed between the central conductive element and the first barrel of the metal sleeve.

16. The electrical connector of claim 11, wherein the housing defines a mounting hole, the metal sleeve includes a first barrel, a second barrel, and a third barrel connected between the first barrel and the second barrel, the third barrel is disposed in the mounting hole, and the second connector further includes an inner sealing member disposed between the central conductive member and the third barrel.

17. An electrical connection device as claimed in claim 15 or 16 wherein the inner seal is a hot melt adhesive ring.

18. The electrical connector of claim 11, wherein the housing defines a mounting hole, the metal sleeve includes a first barrel, a second barrel, and a third barrel connected between the first barrel and the second barrel, the third barrel is disposed in the mounting hole, and the second connector further includes an outer sealing member disposed between the housing and the third barrel.

19. The electrical connector as claimed in claim 18, wherein the third cylinder forms an annular groove, and the outer sealing member is an O-ring disposed in the annular groove and tightly abutted between the housing and the third cylinder.

20. The electrical connection device as claimed in claim 16 or 18, wherein the first cylinder is disposed around the outer periphery of the insulating member, and the second cylinder has a plurality of elastic arms arranged in a ring shape and contacting the outer periphery of the metal shell.

21. The electrical connector as claimed in claim 16, wherein the housing has an inner peripheral surface defining the mounting hole and a stop end surface connected to the inner peripheral surface, and the third cylinder has a flange abutting against the stop end surface.

22. The electrical connection device as claimed in claim 16 or 18 wherein the housing has a position-limiting flange located within the mounting hole, and the third barrel has a position-limiting ring having an annular surface received within the position-limiting flange.

23. The electrical connection device as claimed in claim 22, wherein the retainer ring further has a shoulder surface connected to the annular surface and abutting against the retainer flange.

24. A connector for an electrical connection device, comprising:

an insulating assembly;

a central conductive component, which is arranged in the center of the insulating component in a penetrating way and defines a central shaft;

a metal sleeve, which is sleeved on the outer periphery of the insulating component;

a sliding component which is positioned in the metal sleeve and can slide relative to the central conductive component along an axial direction of the central shaft and is electrically connected with the central conductive component, wherein the sliding component comprises a contact end part; and

a spring, which applies elastic force to the sliding component towards the direction far away from the insulating component.

25. The connector of the electrical connection device as claimed in claim 24, wherein the sliding assembly further comprises an insulating sleeve and a connecting terminal, the insulating sleeve is slidably disposed in the metal sleeve along the axial direction and is abutted by the spring, the connecting terminal is disposed in the center of the insulating sleeve and has the contact end, and at least one elastic contact piece contacting the central conductive assembly.

26. The electrical connector of claim 25, wherein the sliding assembly further comprises a docking sleeve having a shielding cylinder fitted over the insulating sleeve and shielding the docking terminal, at least one first contact spring arm protruding from the shielding cylinder, and at least one second contact spring arm protruding from the shielding cylinder and contacting the metal sleeve.

27. The connector of the electrical connection device as claimed in claim 24, wherein the central conductive member comprises a conductive terminal passing through the insulating member and forming a sliding slot extending along the axial direction, the sliding member is a guiding rod slidably passing through the sliding slot and partially protruding out of the sliding slot, and the spring is disposed in the sliding slot and abuts between the conductive terminal and the sliding member.

28. The electrical connector of claim 27, wherein the central conductive member further comprises a conductive member disposed on the conductive terminal, the conductive member having at least one resilient contact contacting the sliding member, the conductive member electrically connecting the conductive terminal and the sliding member.

29. The connector of the electrical connection device as claimed in claim 24, wherein the metal sleeve comprises a first cylinder and a second cylinder connected to the first cylinder, the first cylinder is disposed around the insulating member, the second cylinder has at least one elastic arm, the first cylinder is made of a first metal plate, the second cylinder is made of a second metal plate, and the thickness of the second metal plate is smaller than that of the first metal plate.

30. The electrical connector of claim 29, further comprising an inner seal disposed between the central conductive element and the first barrel of the metal sleeve.

31. The electrical connector of claim 24, wherein the metal sleeve comprises a first barrel, a second barrel, and a third barrel connected between the first barrel and the second barrel, the connector further comprising an inner seal disposed between the central conductive element and the third barrel.

32. A connector for an electrical connection device according to claim 30 or 31, wherein the inner seal is a hot melt adhesive ring.

33. The electrical connector of claim 24, wherein the metal sleeve comprises a first barrel, a second barrel, and a third barrel connected between the first barrel and the second barrel, the connector further comprising an outer sealing member disposed on the third barrel.

34. The electrical connector of claim 33, wherein the third barrel defines an annular groove, and the outer seal member is an O-ring disposed within the annular groove.

35. The connector of an electrical connection device as claimed in claim 31 or 33, wherein the first cylinder is disposed around the outer periphery of the insulating member, and the second cylinder has at least one elastic arm.

36. The connector of the electrical connection device as claimed in claim 31 or 33, wherein the third cylinder has a limiting ring portion, the limiting ring portion has an annular surface, and a shoulder surface connected to the annular surface.

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