CN217114885U

CN217114885U - Small miniature circular connector

Info

Publication number: CN217114885U
Application number: CN202220887475.7U
Authority: CN
Inventors: 胡海青; 肖体明; 任亚洲
Original assignee: Wuhan Yuanhuo Technology Co ltd
Current assignee: Wuhan Yuanhuo Technology Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-08-02
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a small miniature circular connector, belonging to the technical field of connectors; it includes: a plug housing and a receptacle housing, a precession assembly, and an alignment assembly; the precession assembly comprises a rotary bushing and an axial limiting unit, the rotary bushing is arranged in the plug shell and is rotationally connected with the plug shell, the plug insulator is fixedly connected with the inner wall of the rotary bushing, the axial limiting unit is arranged between the rotary bushing and the plug shell, and the plug shell can drive the plug insulator to axially move through the axial limiting unit; the butt joint component comprises a socket insulator used for installing the contact pin contact element, the socket insulator is arranged in the socket shell and fixedly connected with the socket shell, an insertion hole communicated with the outside is formed in the socket insulator, the plug insulator is inserted into the insertion hole, and a positioning unit used for limiting the insertion angle of the plug insulator is arranged between the plug insulator and the insertion hole. The utility model discloses can reduce the connection damage that the contact pin received.

Description

Small miniature circular connector

Technical Field

The utility model relates to a connector technical field especially relates to a small and miniature circular connector.

Background

Connectors, also known domestically as connectors, plugs or sockets, generally refer to electrical connectors, i.e. devices connecting two active devices, transmitting current or signals, connectors being a part which is frequently touched by electronic engineers.

The invention of publication No. CN213401585U discloses a threaded connector, which includes: the socket assembly comprises an inner sleeve, an outer sleeve and an insulator, wherein the outer sleeve is connected to the outer part of the inner sleeve in a threaded manner, the insulator is arranged in the inner sleeve, and a plurality of jacks are formed in the insulator; the contact pin include with the jack grafting cooperation needle body with set up in the elastic locating pawl of needle body lateral wall, the locating pawl with the lateral wall butt cooperation of jack, the wiring groove has been seted up to the one end of needle body.

The contact pin of the existing connector and the contact pin joint are connected with each other instantly, the contact pin directly bears the impact and vibration caused by rigid connection, the contact pin is easy to damage in the repeated use process, and the service life of the connector is short.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a miniature circular connector that solves the problem of the prior art that the pins of the connector are damaged due to rigid connection.

The utility model provides a small and miniature circular connector, include: a plug housing and a socket housing in threaded connection, a precession assembly and an alignment assembly;

the precession assembly comprises a rotary bushing, a plug insulator used for installing a contact pin and an axial limiting unit, the rotary bushing is arranged in the plug shell and is rotationally connected with the plug shell, the plug insulator is fixedly connected with the inner wall of the rotary bushing, the axial limiting unit is arranged between the rotary bushing and the plug shell, and the plug shell can drive the plug insulator to axially move through the axial limiting unit;

the butt joint component comprises a socket insulator used for installing a contact pin contact element, the socket insulator is arranged in the socket shell and fixedly connected with the socket shell, the socket insulator protrudes out of the socket shell, an insertion hole communicated with the outside is formed in the socket insulator, the plug insulator is inserted into the insertion hole, and a positioning unit used for limiting the insertion angle of the plug insulator is arranged between the plug insulator and the insertion hole.

Further, the axial spacing unit includes first annular, second annular and piston ring, first annular inlays to be located in the inner wall of plug housing, the second annular inlays to be located in the outer wall of swivel bush and relative first annular sets up, the inside and outside both sides of piston ring respectively with second annular and first annular joint.

Furthermore, the positioning unit comprises a boss and a groove, the boss is arranged on the inner wall of the insertion hole, the groove is arranged on the outer circular surface of the plug insulator, the boss is inserted into the groove, and when the boss is opposite to the groove, each contact pin is opposite to one contact pin contact element.

Furthermore, the number of the bosses is at least one, the number of the grooves is the same as that of the bosses, the bosses are arranged around the axis of the insertion hole, the distance between every two adjacent bosses is the same, and the arrangement mode of the grooves is the same as that of the bosses.

Furthermore, a first screwing part is arranged at the opening end of the plug shell, and an internal thread is arranged on the first screwing part; the open end of socket shell is equipped with the second and connects portion soon, the second connects the portion soon and is equipped with the external screw thread, first connect portion cover establish soon with the second connect the portion outside and with the second connects the portion soon and connects.

Furthermore, an accommodating cavity for accommodating a second rotary connection part is arranged between the plug insulator and the first rotary connection part, and the span of the cavity of the accommodating cavity is larger than the sum of the thickness of the second rotary connection part and the thickness of the hole wall of the insertion hole.

Furthermore, a first pouring sealant is arranged in the rotary bushing and is respectively bonded with the inner wall of the rotary bushing and the plug insulator.

Furthermore, the inner wall of the rotating bushing is provided with an anti-falling groove, and the first pouring sealant body is provided with a connecting part for filling the anti-falling groove.

Furthermore, a second potting adhesive is arranged in the socket shell and is respectively bonded with the inner wall of the socket shell and the socket insulator.

Furthermore, the outer wall of the plug shell is provided with anti-skid grains.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

(1) the utility model discloses a small and miniature circular connector, set up the precession subassembly in plug shell, the precession subassembly includes swivel bush, a plug insulator and the spacing unit of axial for installing the contact pin, can install a plurality of contact pins according to the demand in the plug insulator, swivel bush sets up in plug shell and rotates with plug shell and be connected, plug insulator and swivel bush's inner wall fixed connection, the spacing unit of axial sets up between swivel bush and plug shell, plug shell is at the in-process that connects soon with socket shell, plug shell passes through the transmission of the spacing unit of axial, promote plug insulator axial displacement, thereby it slowly inserts in the contact pin contact member who targets in the socket to drive the contact pin, the impact that the contact pin received is less with the vibration, the damage that causes is less, life obtains the extension.

(2) The utility model discloses a little miniature circular connector is equipped with the positioning unit who is used for injecing plug insulator insertion angle between plug insulator and cartridge hole, the contact pin with the contact pin contact butt joint and intercommunication among plug insulator and socket insulator, both can prevent outside static, free electron can avoid the accident of emergence electric leakage again to the damage of contact pin. The positioning unit can ensure that the plug insulator can only be inserted into the insertion hole at certain angles, and the contact pin is prevented from being abutted against the socket insulator to damage the contact pin.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a schematic structural view of the plug housing and the screw-in assembly of the present invention;

fig. 3 is a schematic end face structure diagram of the plug of the present invention;

fig. 4 is a schematic structural view of the plug housing and the rotary bushing according to the present invention;

fig. 5 is a schematic structural view of a socket housing and a mating assembly according to the present invention;

fig. 6 is a schematic end view of the socket of the present invention;

in the drawing, the plug housing 100, the first screwing part 110, the accommodating cavity 120, the anti-slip pattern 130, the socket housing 200, the second screwing part 210, the second potting compound 220, the screwing component 300, the rotating bushing 310, the first potting compound 311, the connecting part 311a, the anti-drop groove 312, the plug insulator 320, the axial limiting unit 330, the first annular groove 331, the second annular groove 332, the piston ring 333, the abutting component 400, the socket insulator 410, the insertion hole 411, the positioning unit 420, the boss 421 and the groove 422.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

Referring to fig. 1 to 4, a miniature circular connector in the present embodiment includes: a threaded plug housing 100 and a receptacle housing 200, a precession assembly 300, and a docking assembly 400. The screw-in component 300 is arranged in the plug shell 100, and the screw-in component 300 can drive the plug to slowly feed into the socket, so that the vibration and the collision of the pins are reduced. The docking assembly 400 is disposed in the receptacle housing 200, and the docking assembly 400 can ensure that the pins are accurately inserted into the receptacles.

The precession assembly 300 includes a rotary bushing 310, a plug insulator 320 for installing pins, and an axial limiting unit 330, wherein a plurality of pins can be installed in the plug insulator 320 as required, the rotary bushing 310 is disposed in the plug housing 100 and is rotatably connected to the plug housing 100, the plug insulator 320 is fixedly connected to an inner wall of the rotary bushing 310, the axial limiting unit 330 is disposed between the rotary bushing 310 and the plug housing 100, the plug housing 100 is screwed to the socket housing 200, the plug housing 100 pushes the plug insulator 320 to move axially through transmission of the axial limiting unit 330, so as to drive the pins to be slowly inserted into pin contacts located in the socket, impact and vibration on the pins are small, damage caused by the pins is small, and service life is prolonged.

The docking assembly 400 includes a socket insulator 410 for mounting a pin contact, specifically a tubular conductor, which is inserted into the pin, the socket insulator 410 is disposed in the socket housing 200 and fixedly connected to the socket housing 200, and the socket insulator 410 is disposed to protrude from the socket housing 200. The socket insulator 410 is provided with an insertion hole 411 communicating with the outside, the plug insulator 320 is inserted into the insertion hole 411, and a positioning unit 420 for limiting the insertion angle of the plug insulator 320 is provided between the plug insulator 320 and the insertion hole 411. The positioning unit 420 can ensure that the plug insulator 320 can only enter the insertion hole at certain angles, and the pin contacts of the pins are butted and communicated between the plug insulator 320 and the socket insulator 410, so that external static electricity and damage of free electrons to the pins can be prevented, and electric leakage accidents can be avoided.

The following are specifically mentioned: due to the existing connecting piece, more than one contact pin is arranged at intervals in the inner part, and the actual insertion angle is limited. For example, two pins have only two angles 0 ° and 180 °, and four equally spaced pins have four angles. When inserted at other angles, the pins can only abut against the socket insulator 410, and are easily damaged. The positioning unit 420 is required to define the angle of insertion.

Referring to fig. 1 to 4, the axial limiting unit 330 includes a first ring groove 331, a second ring groove 332 and a piston ring 333, the first ring groove 331 is embedded in the inner wall of the plug housing 100, and the second ring groove 332 is embedded in the outer wall of the rotating bushing 310 and is disposed opposite to the first ring groove 331. The sections of the first ring groove 331 and the second ring groove 332 are both rectangular, the section of the piston ring 333 is also rectangular, and the inner side and the outer side of the piston ring 333 are respectively clamped with the second ring groove 332 and the first ring groove 331. In practical use, grease can be applied between the piston ring 333 and the second and

first ring grooves

332, 331 so that the three can rotate relatively independently. Meanwhile, the piston ring 333 axially supports the plug housing 100 and the rotation bushing 310, so that the plug housing 100 and the rotation bushing 310 can move only in synchronization and cannot move relative to each other in the axial direction. In the process that the plug housing 100 is rotated and fed through the threads, the plug housing 100 can drive the plug insulator 320 in the rotating bushing 310 to move at a low speed and a uniform speed, so that the vibration and the impact of the contact pin are reduced, and the service life of the contact pin is prolonged.

As another embodiment, the axial limiting unit 330 may be a bearing, an inner ring and an outer ring of the bearing are respectively and fixedly connected to the rotating bushing 310 and the plug housing 100, and when the plug housing 100 is fed through a thread, the bearing may also drive the rotating bushing 310 to move, so as to implement a corresponding function.

In addition, the axial limiting unit 330 may further include a ring table, an outer ring of the ring table is fixedly connected to an inner wall of the plug housing 100, the ring table is disposed at one end of the plug housing away from the socket housing 200, an end of the ring table abuts against an end of the rotating bushing 310, and the ring table may push the rotating bushing 310 to move, so as to implement a corresponding function.

Referring to fig. 1 to 6, the positioning unit 420 includes a boss 421 and a recess 422, the boss 421 is disposed on an inner wall of the insertion hole 411, the recess 422 is disposed on an outer circumferential surface of the plug insulator 320, the boss 421 can only be specifically inserted into the recess 422, and each pin is aligned with one pin contact member at specific angles, so that the pin can be accurately aligned with the pin contact member, and the pin is prevented from directly colliding with the socket insulator 410. As a further embodiment, the number of the bosses 421 is at least one, the number of the grooves 422 is the same as that of the bosses 421, the bosses 421 are arranged around the axis of the insertion hole 411, the distance between two adjacent bosses 421 is the same, and the arrangement of the grooves 422 is the same as that of the bosses 421. In the implementation, the number of pins is seven, one pin is disposed in the center of the plug insulator 320, and the other six pins are disposed around the center pin. Correspondingly, 1, 2, 3 or 6 grooves 422 can be formed in the plug insulator 320 to limit the angle of the socket insulator 410 and ensure the safety of the pins.

As another embodiment, the positioning unit 420 may include a polygonal insertion hole 411, the cross-sectional outer shape of the plug insulator 320 is a polygon corresponding to the cross-section of the insertion hole 411, and the insertion angle of the plug insulator 320 is defined by controlling and changing the specific shape of the polygon, so as to perform the corresponding function.

It should be noted that, the insulator is generally made of plastic or rubber, and the slot or the boss 421 is formed on the insulator, or even the shape of the shape and the shape of the inner cavity are directly controlled, which can be easily implemented, and has good operability and low cost.

Referring to fig. 1, 2 and 5, the opening end of the plug housing 100 is provided with a first screwing portion 110, and the first screwing portion 110 is provided with an internal thread. The opening end of the socket housing 200 is provided with a second screwing portion 210, the second screwing portion 210 is provided with an external thread, and the first screwing portion 110 is sleeved outside the second screwing portion 210 and screwed with the second screwing portion 210. The first screwing part 110 and the second screwing part 210 are both cylindrical, and in the screwing process of the first screwing part 110 and the second screwing part 210 through threads, the first screwing part 110 and the second screwing part 210 move oppositely, so that the plug insulator 320 and the socket insulator 410 are pushed to be close to each other, and finally, a pin is inserted into the pin contact.

Referring to fig. 1 and 2, an accommodating cavity 120 for accommodating the second rotation portion 210 is disposed between the plug insulator 320 and the first rotation portion 110, and a cavity span of the accommodating cavity 120 is greater than a sum of a thickness of the second rotation portion 210 and a wall thickness of the insertion hole 411. The receiving cavity 120 can receive the insertion of the whole plug, and avoid the interference between the plug and the socket.

Referring to fig. 1 to 2, a first potting adhesive 311 is disposed in the rotary bushing 310, and the first potting adhesive 311 is adhered to the inner wall of the rotary bushing 310 and the plug insulator 320, respectively. The first potting compound 311 may further strengthen the connection between the rotation bushing 310 and the plug insulator 320, preventing the rotation bushing 310 and the plug insulator 320 from being separated from each other. In a further embodiment, the inner wall of the rotation bushing 310 is provided with a separation preventing groove 312, and the first potting adhesive 311 is provided with a connecting portion 311a for filling the separation preventing groove 312. The connection portion 311a protrudes out of the solid body of the first encapsulant 311, and the connection portion 311a can enhance the connection strength between the first encapsulant 311 and the rotation bushing 310, so as to prevent the first encapsulant 311 from coming off the rotation bushing 310.

Referring to fig. 1 and 5, a second potting adhesive 220 is disposed in the socket housing 200, and the second potting adhesive 220 is adhered to the inner wall of the socket housing 200 and the socket insulator 410, respectively. The second encapsulant 220 may further strengthen the connection between the socket housing 200 and the socket insulator 410, preventing the socket housing 200 and the socket insulator 410 from being separated from each other.

Referring to fig. 1 to 4, the outer wall of the plug housing 100 is provided with anti-slip threads 130, and the anti-slip threads 130 can enhance the friction force between the hand and the plug housing 100, so as to facilitate the manual rotation of the plug housing 100.

The working process is as follows: first, the receptacle insulator 410 is accurately butted against the plug insulator 320 by the positioning unit 420, and the plug housing 100 is slowly rotated to drive the plug insulator 320 to slowly move relative to the receptacle insulator 410 so that the pins are inserted into the pin contacts.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. A miniature circular connector, comprising: a plug housing and a socket housing in threaded connection, a precession assembly and an alignment assembly;

2. The small miniature circular connector according to claim 1, wherein the axial position-limiting unit comprises a first ring groove, a second ring groove and a piston ring, the first ring groove is embedded in the inner wall of the plug housing, the second ring groove is embedded in the outer wall of the rotating bushing and is arranged opposite to the first ring groove, and the inner side and the outer side of the piston ring are respectively connected with the second ring groove and the first ring groove in a clamping manner.

3. The miniature circular connector of claim 1, wherein said positioning unit comprises a protrusion and a recess, said protrusion is disposed on an inner wall of said insertion hole, said recess is disposed on an outer circumferential surface of said plug insulator, said protrusion is inserted into said recess, and when said protrusion is opposite to said recess, each pin is opposite to a pin contact.

4. The miniature circular connector according to claim 3, wherein the number of said at least one projection is equal to the number of said projections, said projections are disposed around the axis of said insertion hole, the distance between two adjacent projections is the same, and the arrangement of said at least one projection is the same as the arrangement of said at least one projection.

5. The miniature circular connector according to claim 1, wherein the open end of said plug housing is provided with a first screw-on portion, said first screw-on portion being provided with internal threads; the open end of socket shell is equipped with the second and connects portion soon, the second connects the portion soon and is equipped with the external screw thread, first connect portion cover establish soon with the second connect the portion outside and with the second connects the portion soon and connects.

6. The miniature circular connector according to claim 5, wherein a receiving cavity for receiving a second screw part is provided between said plug insulator and said first screw part, and the cavity span of said receiving cavity is greater than the sum of the thickness of said second screw part and the thickness of the wall of said insertion hole.

7. The miniature circular connector of claim 1, wherein a first potting compound is disposed in said rotating bushing, said first potting compound being bonded to an inner wall of said rotating bushing and said plug insulator, respectively.

8. The miniature circular connector according to claim 7, wherein an anti-falling groove is formed on an inner wall of said rotating bushing, and a connecting portion for filling said anti-falling groove is formed on said first potting compound.

9. The miniature circular connector of claim 1, wherein a second potting compound is disposed in said socket housing, said second potting compound being bonded to said socket housing inner wall and said socket insulator, respectively.

10. The miniature circular connector of claim 1, wherein the plug housing has non-slip threads on an outer wall thereof.