CN116505309B

CN116505309B - Quick connector for electric connector and electric connector

Info

Publication number: CN116505309B
Application number: CN202310053654.XA
Authority: CN
Inventors: 应伟亮; 龚海晏
Original assignee: Zhixing Electronics Suzhou Co ltd
Current assignee: Zhixing Electronics Suzhou Co ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-09-05
Anticipated expiration: 2043-02-03
Also published as: CN116505309A

Abstract

The invention provides a quick connector and an electric connector for the electric connector, wherein the electric connector comprises a quick connection insulating piece and a conductive core body, the quick connection insulating piece comprises a first plug-in connection part, a bent pipe part and a second plug-in connection part which are sequentially connected, the quick connection insulating piece is sleeved on the conductive core body, a contact pin jack is formed in a part, corresponding to the first plug-in connection part, of the conductive core body, and a cable jack is formed in a part, corresponding to the second plug-in connection part, of the conductive core body; or, the electric connector comprises a first quick-connection insulating piece, a second quick-connection insulating piece, a first conductive core, a second conductive core and a conductive rotating assembly; the right end of the first quick-connection insulating piece is provided with a first hollow ball part, the left end of the second quick-connection insulating piece is provided with a second hollow ball part, the second hollow ball part is sleeved on the first hollow ball part, and the second end of the first conductive core body is rotatably and conductively connected with the second end of the second conductive core body through a conductive rotating assembly. The outgoing direction of the cable connected to the quick connector can be changed.

Description

Quick connector for electric connector and electric connector

Technical Field

The present disclosure relates to electrical connectors, and particularly to a quick connector for an electrical connector.

Background

In electric power operation, it is often necessary to connect a cable system to an electric power system, but since the straight plug of the cable system does not coincide with the interface of the two-way sleeve in the cable branch box of the electric power system, it is necessary to make a changeover connection between the two by using an electric connector as an intermediate unit.

As shown in fig. 1, the electrical connector currently on the market generally comprises a front plug 2 and a quick connector 3.

The front plug 2 includes a front plug insulator, a copper nose 24, pins 25, a washer 27, and a nut 26. The front plug-in insulator comprises a transverse pipe part and a vertical pipe part perpendicular to the transverse pipe part, wherein the inner cavity of the transverse pipe part is communicated with the inner cavity of the vertical pipe part, a sleeve jack 21 for plugging the double-pass sleeve 1 is formed at the first end of the inner cavity of the transverse pipe part, a quick-connection jack 22 for plugging the quick-connection 3 is formed at the second end of the inner cavity of the transverse pipe part, a copper nose jack 23 for plugging the copper nose 24 from the free end of the vertical pipe part is formed in the inner cavity of the vertical pipe part, the hole wall of the sleeve jack 21 is a conical surface with gradually reduced hole diameter from left to right, and the hole wall of the quick-connection jack 22 is a conical surface with gradually reduced hole diameter from right to left. The copper nose 24 is provided with a flat part and a tubular part which are sequentially connected, the copper nose 24 is inserted into the copper nose jack 23, the tubular part is positioned in the copper nose jack 23 and used for crimping the first cable, and the flat part extends out of the copper nose jack 23 and is positioned in the inner cavity of the transverse tube part and between the sleeve jack 21 and the quick-connection jack 22. The flat part is provided with a through hole, the contact pin 25 is arranged in the through hole in a penetrating way, the contact pin 25 is provided with a first end and a second end which extend out of the through hole, the first end of the contact pin 25 is positioned in the sleeve insertion hole 21, the second end of the contact pin 25 is positioned in the quick connection insertion hole 22, the first end of the contact pin 25 is provided with a limiting part which is in butt joint with the flat part, the second end of the contact pin 25 is in threaded connection with the nut 26, the gasket 27 is sleeved on the second end of the contact pin 25 and is positioned between the flat part and the nut 26, the gasket 27 and the flat part are in mutual close contact. The first end of the contact pin 25 is provided with external threads for being in fastening fit with the internal thread holes on the double-pass sleeve 1 inserted into the sleeve insertion hole 21, and the second end of the contact pin 25 is provided with external threads for being in fastening fit with the internal thread holes on the quick connector 3 inserted into the quick connector insertion hole 22.

Wherein, the quick connector 3 comprises a quick connector insulator, a conductive core 31 and a tubular first shell, wherein the quick connector insulator is in a transverse tube shape, and the quick connector insulator is sleeved on the conductive core 31. The first end of the quick-connection insulating member is provided with a first plug-in part 32 for being inserted into the quick-connection jack 22, the second end of the quick-connection insulating member is provided with a second plug-in part 33 for being inserted into a second cable connector, the outer wall surface of the first plug-in part 32 is a conical surface adapting to the wall of the quick-connection jack 22 (i.e. a conical surface with gradually enlarged aperture from left to right), and the outer wall surface of the second plug-in part 33 is a conical surface with gradually reduced aperture from left to right so as to adapt to the wall of the jack on the second cable connector (i.e. a conical surface with gradually enlarged aperture from left to right). The first end of the conductive core 31 is provided with a pin jack for plugging the second end of the pin 25, the pin jack is internally provided with internal threads, and the second end of the conductive core 31 is provided with a cable jack for plugging a second cable connector. The first casing includes protective housing 34 and locking shell 35 that connect gradually, and protective housing 34 cup joints on the quick-connect insulator and is located between first grafting portion 32 and the second grafting portion 33, and locking shell 35 encircles second grafting portion 33 setting, and the jack of second cable joint is pegged graft between second grafting portion 33 and locking shell 35, and the outer wall of second cable joint cooperates with locking shell 35 inner wall, locks cable joint's position.

The first plug-in portion 32 of the quick connector 3 is inserted into the quick connector jack 22, the quick connector 3 is screwed, the internal thread of the pin jack is screwed on the external thread of the second end of the pin 25, the first end face of the conductive core 31 is in contact with the flat portion of the copper nose 24, and the quick connector 3 is mounted on the front plug 2 to form an electric connector. When the electric connector is used, the sleeve insertion hole 21 is inserted into the double-pass sleeve 1, the first cable is pressed into the tubular part of the copper nose 24, the first cable is used for supplying power to the cable branch box where the double-pass sleeve 1 is located, when the upper electric power system of the first cable is powered off, the second cable connector is inserted into the second insertion part 33 of the quick connector 3, locking of the second cable connector is achieved through the locking shell 35, and the second cable is used for supplying power to the cable branch box where the double-pass sleeve 1 is located.

However, the above-mentioned electrical connector may have the following problems during use: 1. because the quick-connect insulating member is in a transverse tube shape (i.e., the quick-connect is flat), the transverse dimension of the electric connector is larger, the dimension of the cable box is often limited, and the situation that the box door cannot be closed after the electric connector is installed in the cable box can be caused; 2. the flat quick connector enables the force arm to be longer, and after the quick connector is provided with a second cable (shown in fig. 2), the electric connector bears larger weight of the cable, and the bending moment generated by the cable on the electric connector is larger, so that the electric connector is not beneficial to long-term use; 3. in the plugging process of the electric connector, the front plug insulator and the quick connector insulator bear most of the plugging force and the unplugging force, so that the pressure resistance and partial discharge between the front plug and the joint interface of the quick connector are influenced, and the pressure resistance and partial discharge between the joint interface of the quick connector and the second cable connector are influenced, and the electric connector is insulated and aged quickly until electric faults occur; 4. in the electric connector, the first end face of the conductive core body is only in contact with the flat part of the copper nose to conduct current (as shown in fig. 3), so that the surface roughness and the processing requirements on the conductive end face are high, and meanwhile, the requirements on field installation are also high, and the influence of high temperature rise is extremely easy to be brought.

Accordingly, there is a need for an improved quick connector for an electrical connector and an electrical connector.

Disclosure of Invention

First, the technical problem to be solved

In view of the problems with the above-described techniques, the present invention addresses, at least to some extent. Therefore, a first object of the present invention is to provide a quick connector for an electrical connector, which can change the direction of the outgoing line of the cable connected to the quick connector.

A second object of the present invention is to provide an electrical connector having the above-mentioned quick connector.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:

in one aspect, the invention provides a quick connector for an electric connector, which comprises a tubular quick connector insulator and a conductive core body, wherein the quick connector insulator comprises a first plug-in part, a bent pipe part and a second plug-in part which are sequentially connected, the first plug-in part and the second plug-in part are all in a straight trend, the quick connector insulator is sleeved on the conductive core body, a pin jack is formed in a part, corresponding to the first plug-in part, of the conductive core body, and a cable jack is formed in a part, corresponding to the second plug-in part, of the conductive core body; or,

the device comprises a first quick-connection insulating piece, a second quick-connection insulating piece, a first conductive core body, a second conductive core body and a conductive rotating assembly; the first quick-connection insulating piece comprises a first plug-in connection part and a first hollow ball part which are sequentially arranged, the first plug-in connection part is sleeved on the first conductive core body, a pin jack is formed in the first end of the first conductive core body, the second end of the first conductive core body stretches into the first hollow ball part, and a first opening is formed in the right end of the first hollow ball part; the second quick-connection insulating piece comprises a second plug-in connection part and a second hollow ball part which are sequentially arranged, the second plug-in connection part is sleeved on the second conductive core body, a cable jack is formed in the first end of the second conductive core body, the second end of the second conductive core body stretches into the second hollow ball part, and a second opening is formed in the left end of the second hollow ball part;

the second hollow ball part is sleeved on the first hollow ball part through the first opening and the second opening, the second end of the second conductive core body stretches into the first hollow ball part, or the first hollow ball part is sleeved on the second hollow ball part, and the second end of the first conductive core body stretches into the second hollow ball part; the second end of the first conductive core is rotatably and conductively coupled to the second end of the second conductive core by a conductive swivel assembly, and the first and second openings allow the second quick connect insulator and the second conductive core to swivel together.

Optionally, a first leaf spring mounting position is arranged on the hole wall of the contact pin jack, and a first leaf spring is arranged on the first leaf spring mounting position; the contact pin of the front plug is inserted into the contact pin jack, and the contact pin is contacted with the first leaf spring; the pin jack is provided with a first jack part for accommodating a nut and a gasket which are connected with the pin, the right end face of the first jack part is provided with a first annular groove which surrounds the axis of the pin jack, and an annular oblique ring spring is arranged in the first annular groove; the contact pin of the front plug is inserted into the contact pin jack, and the right end face of the nut is contacted with the bevel ring spring.

Optionally, the quick connector further comprises a protective shell sleeved on the quick connector insulating piece and located between the first plug-in part and the second plug-in part, and the protective shell is provided with an inner peripheral wall and an outer peripheral wall; the second annular groove surrounding the quick-connection insulating piece is formed in the inner peripheral wall, the CT electricity taking ring surrounding the quick-connection insulating piece is installed in the second annular groove, the inserting groove is formed in the outer peripheral wall, the inserting piece is installed in the inserting groove, the wire outlet hole communicated with the second annular groove is formed in the bottom of the inserting groove, and the inserting piece is connected with the CT electricity taking ring through a wire penetrating through the wire outlet hole.

Optionally, the conductive rotating assembly includes a rotating shaft and a rotating rod; a rotating hole is formed in the first end of the rotating rod, a third leaf spring installation position is arranged on the hole wall of the rotating hole, a third leaf spring is installed on the third leaf spring installation position, the rotating shaft penetrates through the rotating hole, and the rotating shaft is in contact with the third leaf spring; the second end of the rotating rod is fixedly connected with the second end of the second conductive core body in a conductive manner.

Optionally, the second end of the first conductive core is provided with a rotating shaft installation position, and the rotating shaft is fixedly connected to the second end of the first conductive core through interference fit with the rotating shaft installation position; the second end of rotary rod has seted up the internal thread hole, and the second end of the electrically conductive core of second is provided with the screw thread post, screw thread post and internal thread hole threaded connection.

Optionally, the quick connector further comprises a protective shell sleeved on the quick connector insulator and located between the first plug-in part and the second plug-in part, and the protective shell comprises a first protective shell and a second protective shell which are separately arranged; the second quick-connection insulating piece comprises a second plug-in connection part, a connection part and a second hollow ball part which are sequentially arranged; the first protective shell is sleeved on the first hollow ball part and the second hollow ball part, the second protective shell is sleeved on the connecting part, and a third opening allowing the second quick-connection insulating piece, the second conductive core body and the second protective shell to rotate around the rotating shaft is formed in the first protective shell;

the first support plate and the second support plate which extend to the first protective shell are arranged on the second protective shell and are distributed on the front side and the rear side of the first protective shell, the free end of the first support plate is fixedly connected with the front side wall of the first protective shell through screws, and the free end of the second support plate is fixedly connected with the rear side wall of the first protective shell through screws.

In a second aspect, the present invention provides an electrical connector, including a front plug and a quick connector as described above, where a first plugging portion of the quick connector is plugged into the front plug.

Optionally, the front plug comprises a front plug insulator and a tubular second shell, the front plug insulator is provided with a transverse pipe part, a first end of an inner cavity of the transverse pipe part forms a sleeve jack, and a second end of the inner cavity of the transverse pipe part forms a quick-connection jack; the quick connector comprises a protective shell sleeved on the quick connector insulator and positioned between the first plug-in part and the second plug-in part; the second shell is sleeved on the transverse pipe part, the first end part of the second shell is positioned at the transverse middle part of the sleeve jack, and the second end part of the second shell is positioned at the right end of the quick-connection jack; the annular end part of the protective shell is correspondingly and fixedly connected with the annular end part of the second end of the second shell.

Optionally, the second shell comprises a front half shell part and a rear half shell part, the front half shell part is buckled at the front part of the transverse pipe part, the rear half shell part is buckled at the rear part of the transverse pipe part, and the rear end face of the front half shell part is fixedly connected with the front end face of the rear half shell part; the protective housing includes first half shell and lower half shell, and first half shell lock connects the upper portion of insulating part soon, and the lower half shell lock connects the lower part of insulating part soon, and the fixed connection between the up end of first half shell and the lower terminal surface of second half shell.

Optionally, the electric connector further comprises a plug and a locking shell, wherein the plug comprises a plug insulator, a base, a conical ring and a tubular third shell, and the locking shell is arranged around the second plug-in part and is connected with the protective shell; the outer peripheral surface of the plug insulator is a conical surface which gradually increases from left to right, a plug slot for plugging a second plugging part of the quick connector is formed at the first end of the plug insulator, and a solid filled mounting part is arranged at the second end of the plug insulator; the first end of the base forms a slot, and the slot is provided with a first slot part and a second slot part which are sequentially connected from left to right;

the second end of the plug insulating piece is inserted into the slot, the end face of the mounting part is abutted with the bottom of the slot, the conical ring is sleeved on the mounting part, the right end of the conical ring is positioned between the first slot part and the mounting part, and the left end of the conical ring extends into the first slot part; the third shell is sleeved on the plug insulating piece, the second end of the third shell is inserted into the first slot part, the second end of the third shell is in threaded connection with the first slot part, the end part of the second end of the third shell is abutted with the left end face of the conical ring, the first end of the third shell extends out of the slot, and a locking structure matched with the locking shell is arranged on the peripheral wall of the first end of the third shell;

the plug slot is inserted between the second insertion part and the locking shell, the locking structure is matched with the inner wall of the locking shell, and the position of the plug is locked.

(III) beneficial effects

The beneficial effects of the invention are as follows:

the quick connector for the electric connector has the following effects: 1. the outgoing line direction of the cable connected to the quick connector can be changed according to the requirements; 2. the transverse dimension of the quick connector is reduced, so that the transverse dimension of the electric connector is reduced, and after the electric connector is installed into the cable box, the door of the cable box is conveniently closed; 3. the length of the arm of force is reduced, after the quick connector is provided with the cable, the weight of the electric connector bearing the cable is reduced, the bending moment generated by the cable to the electric connector is reduced, and the service life of the electric connector is prolonged.

Drawings

The invention is described with the aid of the following figures:

fig. 1 is a schematic cross-sectional structure of an electrical connector according to the background of the invention;

fig. 2 is a schematic view of the structure of the electrical connector after mounting a second cable according to the background of the invention;

FIG. 3 is a schematic diagram of the electrical circuit between the front plug and the quick connector in an electrical connector according to the background of the invention;

fig. 4 is a schematic cross-sectional structure of an electrical connector according to embodiment 1 of the present invention;

fig. 5 is a schematic view of the structure of the electrical connector according to embodiment 1 of the present invention after mounting a second cable;

FIG. 6 is an enlarged schematic view at A in FIG. 4;

fig. 7 is a schematic diagram of the circuit principle between the front plug and the quick connector in the electrical connector according to embodiment 1 of the present invention;

FIG. 8 is an enlarged schematic view at B in FIG. 4;

fig. 9 is an enlarged schematic view of a plug in an electrical connector according to embodiment 1 of the present invention;

fig. 10 is a schematic structural view of a quick connector in an electrical connector according to embodiment 2 of the present invention;

FIG. 11 is a schematic cross-sectional view of the quick connector of FIG. 10 taken in the direction A-A;

FIG. 12 is a schematic cross-sectional view of the quick connector of FIG. 10 taken perpendicular to the direction A-A;

fig. 13 is a schematic structural view of a quick-connect insulator (including a first quick-connect insulator and a second quick-connect insulator) according to embodiment 2 of the present invention;

FIG. 14 is a schematic cross-sectional view of the quick connect insulator of FIG. 13;

fig. 15 is a schematic structural view of an electrical connector according to embodiment 2 of the present invention;

fig. 16 is a schematic cross-sectional view of an electrical connector according to embodiment 2 of the present invention.

Description of the reference numerals

1: a double-pass sleeve;

2: a front plug;

21: a cannula jack; 22: quick connection jack; 23: copper nose jack; 24: copper nose; 25: a contact pin; 26: a nut; 27: a gasket; 28: a front half shell portion; 29: a first annular clamping block;

3: a quick connector;

31: a conductive core; 32: a first plug-in connection; 33: a second plug-in connection; 34: a protective shell; 35: a locking shell; 36: a bent pipe part;

311: a first leaf spring; 312: a first jack portion; 313: a second jack portion; 314: a third jack portion; 315: a canted coil spring; 316: a second leaf spring;

321: CT gets the electric ring; 322: a plug-in component; 323: a wire outlet hole; 324: an acquisition module;

341: an upper half shell portion; 342: a lower half shell portion; 343: the second annular clamping block;

4: a plug;

41: a plug insulator; 42: a base; 43: a conical ring; 44: a third housing;

51: a first hollow sphere; 52: a first conductive core; 53: a second hollow sphere; 54: a second conductive core; 55: a rotating shaft; 56: a rotating rod; 57: a third leaf spring; 58: a connection part;

61: a first protective case; 62: a second protective case; 63: a first support plate.

Detailed Description

The invention will be better explained by the following detailed description of the embodiments with reference to the drawings. In this context, references to "up", "down", "left", "right", "front", "rear", and like directional terms refer to the orientation of fig. 1, wherein the left-right direction is also transverse, and the up-down direction is also longitudinal.

Example 1

In order to solve the above-mentioned technical problems, the present embodiment provides an improved electrical connector based on the structure of the electrical connector described in the background art.

Fig. 4 is a schematic cross-sectional structure of the electrical connector according to the present embodiment. As shown, the quick connector 3 of the electrical connector comprises a tubular quick connector insulator, a conductive core 31 and a tubular first housing; the tubular quick-connection insulator comprises a first plug-in part 32, a bent pipe part 36 and a second plug-in part 33 which are sequentially connected, wherein the first plug-in part 32 and the second plug-in part 33 are straight; the quick-connection insulating piece is sleeved on the conductive core body 31, a pin jack is formed in the conductive core body 31 at a position corresponding to the first plug-in connection part 32, and a cable jack is formed in the conductive core body 31 at a position corresponding to the second plug-in connection part 33; the first casing includes the protective housing 34 and the locking shell 35 that connect gradually, and the protective housing 34 cup joints on the quick-connect insulator and is located between first grafting portion 32 and the second grafting portion 33, and the setting of locking shell 35 encirclement second grafting portion 33. The jack of the second cable connector is inserted between the second insertion part 33 and the locking shell 35, the outer wall of the second cable connector is matched with the inner wall of the locking shell 35, and the position of the cable connector is locked.

The quick connector 3 is arranged as above, the first plug-in connection part 32 and the second plug-in connection part 33 are connected through the bent pipe part 36, the outgoing line direction of the second cable installed by the quick connector 3 is changed, the quick connector 3 with various bending degrees is further arranged, and the quick connector 3 with corresponding bending degrees can be selected according to requirements so as to adjust the outgoing line direction of the second cable. In addition, the whole quick-connect insulating part is curved, so that the transverse dimension of the quick-connect connector 3 is reduced, and the transverse dimension of the electric connector is further reduced, and after the electric connector is installed into the cable box, the door of the cable box is conveniently closed. In addition, the bending-shaped quick connector 3 reduces the length of the moment arm, after the second cable is installed on the quick connector 3 with the structure (shown in fig. 5), the weight of the cable borne by the electric connector is reduced, the bending moment generated by the cable on the electric connector is reduced, and the service life of the electric connector is prolonged.

Preferably, the angle between the axis of the first plugging portion 32 and the axis of the second plugging portion 33 is 60 ° to 100 °. Specifically, in the present embodiment, the angle between the axis of the first plug portion 32 and the axis of the second plug portion 33 is 75 °.

As shown in fig. 6, preferably, a first leaf spring mounting position is provided on the hole wall of the pin jack, and a first leaf spring 311 is mounted on the first leaf spring mounting position; the pin 25 of the front plug 2 is inserted into the pin insertion hole, and the pin 25 is in contact with the first leaf spring 311. In this way, the first leaf spring 311 is contacted with the contact pin 25 to conduct current, so that a conductive path between the quick connector 3 and the front plug 2 is increased, a parallel conductive path is formed, and the current carrying capacity and the current carrying stability of the product are improved; and the total resistance value of the parallel conductive paths is smaller than the resistance value of the minimum resistance of the parallel conductive paths, so that the resistance of the conductive paths is reduced, the heat generated by electrifying is reduced, and the hidden trouble of high temperature rise is avoided.

Preferably, the pin jack includes a first jack portion 312, a second jack portion 313, and a third jack portion 314 connected in sequence from left to right; the first jack portion 312 is used for accommodating the nut 26 and the gasket 27 connected to the pin 25, the second jack portion 313 is provided with an internal thread for being in threaded connection with the pin 25, and the third jack portion 314 is provided with a first leaf spring mounting position. In this way, the insertion of the pin 25 into the pin insertion hole is facilitated. Of course, in the pin jack, the jack apertures are sequentially ordered from large to small: a first jack portion 312, a second jack portion 313, and a third jack portion 314.

Further preferably, a first annular groove surrounding the axis of the pin jack is formed on the right end face of the first jack portion 312, and an annular inclined ring spring 315 is installed in the first annular groove; the pin 25 of the front plug 2 is inserted into the pin insertion hole, and the right end face of the nut 26 is in contact with the bevel ring spring 315. Thus, when the nut 26 and the washer 27 on the front plug 2 are made of conductive materials (such as copper materials), the conductive path between the quick connector 3 and the front plug 2 can be further increased; specifically, the added conductive paths are respectively: 1. the right end face of the first jack portion 312, the bevel ring spring 315, the nut 26, the pin 25,2, the right end face of the first jack portion 312, the bevel ring spring 315, the nut 26, the gasket 27, the flat portion of the copper nose 24 and the pin 25. In this embodiment, after the first leaf spring 311 and the diagonal coil spring 315 are provided, a schematic diagram of the conductive path between the formed quick connector 3 and the front plug 2 is shown in fig. 7.

Preferably, a second leaf spring mounting position is arranged on the hole wall of the cable jack, and a second leaf spring 316 is arranged on the second leaf spring mounting position; the pin 25 of the second cable connector is inserted into the cable insertion hole and the pin 25 of the second cable connector is in contact with the second leaf spring 316. In this way, it is achieved that the second cable joint conducts current to the conductive core 31.

Specifically, in the present embodiment, the pin insertion hole communicates with the cable insertion hole.

As shown in fig. 8, the protective case 34 preferably has an inner peripheral wall close to the quick-connect insulator and an outer peripheral wall remote from the quick-connect insulator; the second annular groove surrounding the quick-connection insulating piece is formed in the inner peripheral wall, the CT electricity taking ring 321 surrounding the quick-connection insulating piece is installed in the second annular groove, the inserting groove is formed in the outer peripheral wall, the inserting piece 322 is installed in the inserting groove, the wire outlet 323 communicated with the second annular groove is formed in the bottom of the inserting groove, and the inserting piece 322 is connected with the CT electricity taking ring 321 through wires penetrating through the wire outlet 323. So, make the built-in CT of protective housing 34, get the electric ring 321 through CT and get electric to plug connector 322, make things convenient for follow-up to installing collection module 324 additional to quick-operation joint 3, collection module 324 can directly insert with plug connector 322 and close promptly to get electric work. Of course, the quick connector 3 may also include a collecting module 324, where the collecting module 324 is inserted into the inserting slot to be inserted into the inserting piece 322.

Preferably, the insertion groove is open at the top of the peripheral wall. The collection module 324 is conveniently inserted into the insertion groove.

Specifically, in this embodiment, the plugging slot is a square slot, the wire outlet hole 323 is a circular hole, and the CT power taking ring 321 is disposed at a position of the protective shell 34 near the first plugging portion 32. It should be noted that, the plugging slot may be in other shapes such as a circle, a waist, etc., the wire outlet 323 may be in other shapes such as a square, a triangle, etc., the CT power taking ring 321 may be disposed at a position of the protective shell 34 near the second plugging portion 33, and the shape of the plugging slot, the shape of the wire outlet 323, and the setting position of the CT power taking ring 321 are not limited in this embodiment.

As shown in fig. 4 and 8, in the electrical connector provided in the present embodiment, the front plug 2 includes a front plug insulator and a tubular second housing, the second housing is sleeved on a transverse tube portion of the front plug insulator, a first end portion of the second housing is located in a transverse middle portion of the sleeve insertion hole 21, and a second end portion of the second housing is located at a right end of the quick-connection insertion hole 22; the second end of the protective shell 34 is connected with the locking shell 35, and the annular end part of the first end of the protective shell 34 is correspondingly and fixedly connected with the annular end part of the second end of the second shell. In this way, in the plugging process of the electric connector, the plugging force and the unplugging force born by the front plug insulator and the quick connector insulator can be transmitted to the rigid second shell, so that the influence of the plugging force on the joint interface of the front plug 2 and the quick connector 3 and the joint interface of the quick connector 3 and the second cable connector is reduced.

Preferably, the second shell comprises a front half shell 28 and a rear half shell, the front half shell 28 is buckled at the front part of the transverse pipe part, the rear half shell is buckled at the rear part of the transverse pipe part, and the rear end surface of the front half shell 28 is fixedly connected with the front end surface of the rear half shell; the protective housing 34 includes an upper half portion 341 and a lower half portion 342, wherein the upper half portion 341 is fastened on the upper portion of the quick-connection insulating member, the lower half portion 342 is fastened on the lower portion of the quick-connection insulating member, and the lower end surface of the upper half portion 341 is fixedly connected with the upper end surface of the lower half portion 342. In this way, the second housing is conveniently assembled on the front plug insulator, and the protective shell 34 is conveniently assembled on the quick connect insulator. Specifically, in the present embodiment, the rear end face of the front half shell portion 28 and the front end face of the rear half shell portion, and the lower end face of the upper half shell portion 341 and the upper end face of the lower half shell portion 342 are fixedly connected by screws.

Preferably, the annular end part of the second end of the second shell is provided with a third annular groove and a first annular clamping block 29 which are sequentially connected from left to right, the third annular groove and the first annular clamping block 29 are all arranged around the transverse pipe part, the notch of the third annular groove faces the transverse pipe part, and the left end face of the first annular clamping block 29 serves as the right groove wall of the third annular groove; the annular end part of the first end of the protective shell 34 is provided with a fourth annular groove and a second annular clamping block 343 which are sequentially connected from right to left, the fourth annular groove and the second annular clamping block 343 are all arranged around the quick-connection insulating piece, the notch of the fourth annular groove faces away from the quick-connection insulating piece, and the right end face of the second annular clamping block 343 is used as the left groove wall of the fourth annular groove; the first annular latch 29 is inserted into the fourth annular groove, and the second annular latch 343 is inserted into the third annular groove, so that the second housing and the protective housing 34 are relatively immovable in the axial direction of the protective housing 34. A first limiting block is arranged in the fourth annular groove close to the groove bottom, a first limiting groove for accommodating the first limiting block is formed in the first annular clamping block 29 corresponding to the first limiting block, and the first limiting block is matched with the first limiting groove, so that the second shell and the protective shell 34 are relatively immovable in the circumferential direction of the protective shell 34. And/or, a second limiting block is arranged in the third annular groove and close to the bottom of the groove, a second limiting groove for accommodating the second limiting block is formed in the second annular clamping block 343 corresponding to the second limiting block, and the second limiting block is matched with the second limiting groove, so that the second shell and the protective shell 34 are relatively immovable in the circumferential direction of the protective shell 34. The fixed connection between the second shell and the protective shell 34 is realized, and the assembly structure of the second shell and the protective shell 34 is matched, so that the connection and the installation between the second shell and the protective shell 34 are simpler and more convenient.

Specifically, in this embodiment, the annular end portion of the second end of the protective shell 34 is fixedly connected with the annular end portion of the first end of the locking shell 35 correspondingly, and the manner of fixedly connecting the annular end portion of the second end of the protective shell 34 with the annular end portion of the first end of the locking shell 35 is similar to the manner of fixedly connecting the annular end portion of the first end of the protective shell 34 with the annular end portion of the second end of the second shell, which is not repeated here.

In the use of the above-mentioned electrical connector, if the quick connector 3 is not connected to the second cable connector, the second plugging portion 33 of the quick connector 3 needs to be encapsulated by the plug 4 to protect the second plugging portion 33. As shown in fig. 4 and 9, in the electrical connector provided in the present embodiment, further comprising a plug 4, the plug 4 includes a plug insulator 41, a base 42, a tapered ring 43, and a tubular third housing 44; the outer circumferential surface of the plug insulator 41 is a conical surface which gradually increases from left to right, a plug slot for plugging the second plugging part 33 of the quick connector 3 is formed at the first end of the plug insulator 41, and the second end part of the plug insulator 41 is a solid filled mounting part; the first end of the base 42 forms a slot, and the slot has a first slot portion and a second slot portion which are sequentially connected from left to right; the second end of the plug insulator 41 is inserted into the slot, the end face of the mounting part is abutted with the bottom of the slot, the conical ring 43 is sleeved on the mounting part, the right end of the conical ring 43 is positioned between the first slot part and the mounting part, and the left end of the conical ring 43 extends into the first slot part; the third casing 44 is sleeved on the plug insulator 41, the second end of the third casing 44 is inserted into the first slot portion, the second end of the third casing 44 is in threaded connection with the first slot portion, the second end of the third casing 44 is abutted with the left end face of the conical ring 43, the first end of the third casing 44 extends out of the slot, and a locking structure matched with the locking shell 35 is arranged on the outer peripheral wall of the first end of the third casing 44.

According to the plug 4 with the structural design, when the quick connector 3 is not connected with the second cable connector, the plug slot and the first end of the third shell 44 are inserted between the second insertion part 33 and the locking shell 35, and the locking structure on the third shell 44 is matched with the inner wall of the locking shell 35, so that the packaging of the plug 4 on the quick connector 3 is realized. In addition, the assembly process of the plug 4 is simple, in the process of screwing the third shell 44, the second end part of the third shell 44 is extruded on the left end face of the conical ring 43, and the inner annular face of the conical ring 43 slides towards the base 42 along the plug insulator 41, so that the plug insulator 41 is tightly held on the base 42.

Example 2

The main difference between this embodiment and embodiment 1 is that:

as shown in fig. 10 to 14, the quick connector 3 of the electrical connector includes a first quick connector insulator, a second quick connector insulator, a first conductive core 52, a second conductive core 54, and a conductive rotating assembly. The first quick-connection insulating piece comprises a first plug-in connection part 32 and a first hollow ball part 51 which are sequentially arranged, the first plug-in connection part 32 is sleeved on a first conductive core 52, a pin jack is formed at the first end of the first conductive core 52, the second end of the first conductive core 52 stretches into the first hollow ball part 51, and a first opening is formed at the right end of the first hollow ball part 51; the second quick-connection insulating piece comprises a second plug-in connection part 33 and a second hollow ball part 53 which are sequentially arranged, the second plug-in connection part 33 is sleeved on a second conductive core 54, a cable jack is formed at the first end of the second conductive core 54, the second end of the second conductive core 54 stretches into the second hollow ball part 53, and a second opening is formed at the left end of the second hollow ball part 53; the conductive rotating assembly comprises a rotating shaft 55 and a rotating rod 56, a rotating hole is formed in the first end of the rotating rod 56, the rotating shaft 55 penetrates through the rotating hole, and the rotating rod 56 and the rotating shaft 55 are rotatably and conductively connected. The second hollow ball portion 53 is sleeved on the first hollow ball portion 51 through the first opening and the second opening, the second end of the second conductive core 54 extends into the first hollow ball portion 51, the rotating shaft 55 is fixedly connected with the second end of the first conductive core 52 in a conductive manner, the second end of the rotating rod 56 is fixedly connected with the second end of the second conductive core 54, and the first opening and the second opening allow the second quick-connection insulating member and the second conductive core 54 to rotate together around the rotating shaft 55.

Of course, in the present embodiment, the second hollow ball portion 53 is sleeved on the first hollow ball portion 51 through the first opening and the second opening, and it is only preferable that the second end of the second conductive core 54 extends into the first hollow ball portion 51. It is conceivable that the first hollow ball portion 51 is sleeved on the second hollow ball portion 53 through the first opening and the second opening, the second end of the first conductive core 52 extends into the second hollow ball portion 53, and then the first conductive core 52 and the second conductive core 54 are respectively connected with the conductive rotating assembly, so that the second quick-connection insulating member and the second conductive core 54 can rotate together around the rotating shaft 55.

It should be noted that, during the rotation of the second quick-connect insulator and the second conductive core 54 about the rotation axis 55, the second hollow ball 53 always closes the first opening. The inner space of the first hollow ball part 51 and the second hollow ball part 53 after sleeving is always insulated and airtight.

The quick connector 3 arranged as above can realize the integral rotation adjustability of the second quick connector insulator and the second conductive core 54, namely realize the angle adjustability of the quick connector 3 for connecting with the second cable connector. In actual use, the overall angle of the second quick-connect insulating member and the second conductive core 54 is adjusted according to the requirement (as shown in fig. 15 and 16), so that the transverse dimension of the quick-connect connector 3 can be reduced, and then the transverse dimension of the electric connector can be reduced. In addition, through setting up electrically conductive rotating assembly, be favorable to the whole integrated into one piece of first quick-connect insulator and first electrically conductive core 52, the whole integrated into one piece of second quick-connect insulator and second electrically conductive core 54 is prepared into one piece, makes things convenient for the preparation and the assembly of each spare part of quick-connect 3.

Preferably, a third leaf spring mounting position is arranged on the hole wall of the rotating hole, a third leaf spring 57 is arranged on the third leaf spring mounting position, a rotating shaft 55 is arranged in the rotating hole in a penetrating way, and the rotating shaft 55 is in contact with the third leaf spring 57; the second end of the first conductive core 52 is provided with a shaft mounting position, and the shaft 55 is fixedly connected to the second end of the first conductive core 52 through interference fit with the shaft mounting position. In this way, the rotatable and electrically conductive connection between the rotating rod 56 and the rotating shaft 55 is realized, and the electrically conductive and fixed connection between the rotating shaft 55 and the second end of the first conductive core 52 is realized, so that the structure is simple.

Preferably, the second end of the rotary rod 56 is provided with an internally threaded bore, and the second end of the second conductive core 54 is provided with a threaded post that is threadedly connected to the internally threaded bore. Further facilitating the assembly of the quick connector 3.

Preferably, the second quick-connect insulator includes a second plug portion 33, a connection portion 58, and a second hollow ball portion 53 arranged in this order; the protective shell 34 includes a first protective shell 61 and a second protective shell 62 that are separately disposed, the first protective shell 61 is sleeved on the first hollow ball portion 51 and the second hollow ball portion 53, the second protective shell 62 is sleeved on the connecting portion 58, the locking shell 35 is disposed around the second plugging portion 33 and connected with the second protective shell 62, and a third opening that allows the second quick-connection insulator, the second conductive core 54 and the second protective shell 62 to rotate around the rotating shaft 55 is formed in the first protective shell 61.

Preferably, the second protection shell 62 is provided with a first support plate 63 and a second support plate extending to the first protection shell 61, the first support plate 63 and the second support plate are distributed on the front side and the rear side of the first protection shell 61, the free end of the first support plate 63 is fixedly connected with the front side wall of the first protection shell 61 through a screw, and the free end of the second support plate is fixedly connected with the rear side wall of the first protection shell 61 through a screw. As such, when it is desired to rotate the second quick-connect insulator and the second conductive core 54 as a whole, the screw is unscrewed, and when the second quick-connect insulator and the second conductive core 54 as a whole are rotated to a predetermined position, the screw is tightened.

The rest is the same as in embodiment 1 and will not be described here again.

It should be understood that the above description of the specific embodiments of the present invention is only for illustrating the technical route and features of the present invention, and is for enabling those skilled in the art to understand the present invention and implement it accordingly, but the present invention is not limited to the above-described specific embodiments. All changes or modifications that come within the scope of the appended claims are intended to be embraced therein.

Claims

1. A quick connector for an electrical connector, characterized in that,

the quick-connection insulating piece comprises a tubular quick-connection insulating piece and a conductive core body (31), wherein the quick-connection insulating piece comprises a first plug-in connection part (32), an elbow pipe part (36) and a second plug-in connection part (33) which are sequentially connected, the first plug-in connection part (32) and the second plug-in connection part (33) are all in a straight trend, the quick-connection insulating piece is sleeved on the conductive core body (31), a pin jack is formed in a part, corresponding to the first plug-in connection part (32), of the conductive core body (31), and a cable jack is formed in a part, corresponding to the second plug-in connection part (33), of the conductive core body (31); or,

comprises a first quick-connection insulating piece, a second quick-connection insulating piece, a first conductive core body (52), a second conductive core body (54) and a conductive rotating assembly; the first quick-connection insulating piece comprises a first plug-in connection part (32) and a first hollow ball part (51) which are sequentially arranged, the first plug-in connection part (32) is sleeved on a first conductive core body (52), a pin jack is formed in the first end of the first conductive core body (52), the second end of the first conductive core body (52) stretches into the first hollow ball part (51), and a first opening is formed in the right end of the first hollow ball part (51); the second quick-connection insulating piece comprises a second plug-in part (33) and a second hollow ball part (53) which are sequentially arranged, the second plug-in part (33) is sleeved on a second conductive core body (54), a cable jack is formed at the first end of the second conductive core body (54), the second end of the second conductive core body (54) stretches into the second hollow ball part (53), and a second opening is formed at the left end of the second hollow ball part (53);

the second hollow ball part (53) is sleeved on the first hollow ball part (51) through the first opening and the second opening, the second end of the second conductive core body (54) stretches into the first hollow ball part (51), or the first hollow ball part (51) is sleeved on the second hollow ball part (53), and the second end of the first conductive core body (52) stretches into the second hollow ball part (53); the second end of the first conductive core (52) is rotatably and conductively coupled to the second end of the second conductive core (54) by a conductive rotating assembly, and the first and second openings allow the second quick connect insulator to rotate with the second conductive core (54).

2. A quick connector for an electrical connector as in claim 1 wherein,

a first leaf spring mounting position is arranged on the hole wall of the contact pin jack, and a first leaf spring (311) is arranged on the first leaf spring mounting position; the contact pin of the front plug (2) is inserted into the contact pin jack, and the contact pin is contacted with the first leaf spring (311);

the pin jack is provided with a first jack part (312) for accommodating a nut (26) and a gasket (27) which are connected with the pin, the right end surface of the first jack part (312) is provided with a first annular groove which surrounds the axis of the pin jack, and an annular bevel ring spring (315) is arranged in the first annular groove; the contact pin of the front plug (2) is inserted into the contact pin jack, and the right end face of the nut (26) is contacted with the bevel ring spring (315).

3. A quick connector for an electrical connector as in claim 1 wherein,

the protective shell (34) is sleeved on the quick-connection insulating piece and positioned between the first plug-in part (32) and the second plug-in part (33), and the protective shell (34) is provided with an inner peripheral wall and an outer peripheral wall;

the second annular groove surrounding the quick-connection insulating piece is formed in the inner peripheral wall, the CT electricity taking ring (321) surrounding the quick-connection insulating piece is arranged in the second annular groove, the plugging groove is formed in the outer peripheral wall, the plug connector (322) is arranged in the plugging groove, the wire outlet hole (323) communicated with the second annular groove is formed in the bottom of the plugging groove, and the plug connector (322) is connected with the CT electricity taking ring (321) through a wire penetrating through the wire outlet hole (323).

4. A quick connector for an electrical connector as in claim 1 wherein,

the conductive rotating assembly comprises a rotating shaft (55) and a rotating rod (56);

a rotating hole is formed in the first end of the rotating rod (56), a third leaf spring (57) mounting position is arranged on the hole wall of the rotating hole, a third leaf spring (57) is mounted on the third leaf spring (57) mounting position, a rotating shaft (55) penetrates through the rotating hole, and the rotating shaft (55) is in contact with the third leaf spring (57);

the rotating shaft (55) is fixedly connected with the second end of the first conductive core body (52) in a conductive manner, and the second end of the rotating rod (56) is fixedly connected with the second end of the second conductive core body (54) in a conductive manner.

5. A quick connector for an electrical connector as in claim 1 wherein,

the second end of the first conductive core body (52) is provided with a rotating shaft installation position, and the rotating shaft (55) is fixedly connected to the second end of the first conductive core body (52) through interference fit with the rotating shaft installation position;

an internally threaded hole is formed in the second end of the rotating rod (56), and a threaded column is arranged at the second end of the second conductive core body (54) and is in threaded connection with the internally threaded hole.

6. A quick connector for an electrical connector as in claim 1 wherein,

the protective shell (34) is sleeved on the quick-connection insulating piece and positioned between the first plug-in part (32) and the second plug-in part (33), and the protective shell (34) comprises a first protective shell (61) and a second protective shell (62) which are arranged in a separated mode; the second quick-connection insulating piece comprises a second plug-in connection part (33), a connecting part (58) and a second hollow ball part (53) which are sequentially arranged;

the first protective shell (61) is sleeved on the first hollow ball part (51) and the second hollow ball part (53), the second protective shell (62) is sleeved on the connecting part (58), and a third opening allowing the second quick-connection insulating piece, the second conductive core (54) and the second protective shell (62) to rotate around the rotating shaft (55) is formed in the first protective shell (61);

be provided with first extension board (63) and the second extension board that stretch to first protective housing (61) on second protective housing (62), first extension board (63) and second extension board distribute in the front and back both sides of first protective housing (61), and the free end of first extension board (63) passes through the preceding lateral wall fastening connection of screw and first protective housing (61), and the free end of second extension board passes through the back lateral wall fastening connection of screw and first protective housing (61).

7. An electrical connector comprising a front plug (2) and a quick connector according to any one of claims 1 to 6, a first plug-in portion (32) of the quick connector being plugged into the front plug (2).

8. The electrical connector of claim 7, wherein,

the front plug (2) comprises a front plug insulator and a tubular second shell, wherein the front plug insulator is provided with a transverse pipe part, a sleeve jack (21) is formed at a first end of an inner cavity of the transverse pipe part, and a quick connection jack (22) is formed at a second end of the inner cavity of the transverse pipe part; the quick connector comprises a protective shell (34) sleeved on the quick connector insulator and positioned between the first plug-in part (32) and the second plug-in part (33);

the second shell is sleeved on the transverse pipe part, the first end part of the second shell is positioned at the transverse middle part of the sleeve insertion hole (21), and the second end part of the second shell is positioned at the right end of the quick-connection insertion hole (22); the annular end part of the protective shell (34) is correspondingly and fixedly connected with the annular end part of the second end of the second shell.

9. The electrical connector of claim 8, wherein,

the second shell comprises a front half shell part (28) and a rear half shell part, the front half shell part (28) is buckled at the front part of the transverse pipe part, the rear half shell part is buckled at the rear part of the transverse pipe part, and the rear end surface of the front half shell part (28) is fixedly connected with the front end surface of the rear half shell part; the protective housing (34) is including last half shell portion (341) and lower half shell portion (342), and the upper portion of insulating spare is being connect soon to last half shell portion (341) lock, and the lower half shell portion (342) lock is connect the lower part of insulating spare soon, and fixed connection is between the up end of the lower terminal surface of last half shell portion (341) and lower half shell portion (342).

10. The electrical connector of claim 7, wherein,

the plug also comprises a plug (4) and a locking shell (35), wherein the plug (4) comprises a plug insulating piece (41), a base (42), a conical ring (43) and a tubular third shell (44), and the locking shell (35) is arranged around the second plug-in part (33) and is connected with the protective shell (34);

the outer peripheral surface of the plug insulator (41) is a conical surface which gradually increases from left to right, a plug slot for plugging a second plug-in part (33) of the quick connector is formed at the first end of the plug insulator (41), and a solid filled mounting part is arranged at the second end of the plug insulator (41); the first end of the base (42) forms a slot, and the slot is provided with a first slot part and a second slot part which are sequentially connected from left to right;

the second end of the plug insulator (41) is inserted into the slot, the end face of the mounting part is abutted against the bottom of the slot, the conical ring (43) is sleeved on the mounting part, the right end of the conical ring (43) is positioned between the first slot part and the mounting part, and the left end of the conical ring (43) extends into the first slot part; the third shell (44) is sleeved on the plug insulator (41), the second end of the third shell (44) is inserted into the first slot part, the second end of the third shell (44) is in threaded connection with the first slot part, the second end part of the third shell (44) is abutted with the left end face of the conical ring (43), the first end of the third shell (44) extends out of the slot, and a locking structure matched with the locking shell (35) is arranged on the peripheral wall of the first end of the third shell (44);

the plug slot is inserted between the second insertion part (33) and the locking shell (35), the locking structure is matched with the inner wall of the locking shell (35), and the position of the plug (4) is locked.