CN110890656B

CN110890656B - Connector assembly

Info

Publication number: CN110890656B
Application number: CN201811040785.XA
Authority: CN
Inventors: 潘磊; 派·R·拉津德拉; 钟元
Original assignee: Tyco Electronics Shanghai Co Ltd
Current assignee: Tyco Electronics Shanghai Co Ltd
Priority date: 2018-09-06
Filing date: 2018-09-06
Publication date: 2022-06-14
Anticipated expiration: 2038-09-06
Also published as: WO2020049136A1; CN110890656A

Abstract

The present invention provides a connector assembly comprising: a first connector and a second connector. The first connector includes: a first housing; a plurality of first conductive terminals arranged in a row and fixed in the first housing; a first magnetic attraction member mounted in the first housing and arranged on at least one of opposite sides of the row of first conductive terminals in a direction orthogonal to a row direction of the row of first conductive terminals; the second connector includes: a second housing; a plurality of second conductive terminals arranged in a row in the row direction and fixed in the second housing; a second magnetic attraction member mounted in the second housing and arranged on at least one of opposite sides of the row of second conductive terminals in a direction orthogonal to the row direction; wherein the first and second magnetically attractive parts are configured to attract each other to electrically connect the plurality of first electrically conductive terminals to the plurality of second electrically conductive terminals, respectively.

Description

Connector assembly

Technical Field

The present invention relates to a connector assembly, and more particularly, to a magnetic connector assembly for quick charging.

Background

In some household appliances, a magnetic connector assembly is generally used for charging, however, the existing magnetic connector assembly has smaller rated power and rated current. It cannot be used under high power conditions (e.g., 20V, 5A). This limits the charging speed and the range of applications of the magnetic connector assembly.

Some existing magnetic connector assemblies employ a pin-type (also referred to as pogo-pin) terminal structure, in which a pin-type terminal is placed in a cylindrical housing, one end of the pin-type terminal abuts against a spring, and the other end of the pin-type terminal is pushed out of an opening of the cylindrical housing under the pressure of the spring, thereby being electrically connected to a connection terminal. This structure is relatively complex, expensive to manufacture, and the resulting electrical connection is not stable and difficult to use under high power conditions.

Therefore, it is desirable to provide a connector assembly that is simple in structure, reliable and convenient in connection, and can be used under high power conditions.

Disclosure of Invention

The technical problem solved by the embodiments of the present invention is to provide a connector assembly which is used under high power conditions, has a simple structure, and is reliable and convenient to connect.

According to an aspect of the present invention, there is provided a connector assembly comprising: a first connector and a second connector. The first connector includes: a first housing; a plurality of first conductive terminals arranged in a row and fixed in the first housing; a first magnetic attraction member mounted in the first housing and arranged on at least one of opposite sides of the row of first conductive terminals in a direction orthogonal to a row direction of the row of first conductive terminals; the second connector includes: a second housing; a plurality of second conductive terminals arranged in a row in the row direction and fixed in the second housing; a second magnetic attraction member mounted in the second housing and arranged on at least one of opposite sides of the row of second conductive terminals in a direction orthogonal to the row direction; wherein the first and second magnetically attractive parts are configured to attract each other to electrically connect the plurality of first conductive terminals with the plurality of second conductive terminals, respectively.

According to one aspect of the invention, the column of first conductive terminals is disposed in the mating slot of the first housing; and the column of second conductive terminals is disposed on the mating projection of the second housing, the mating projection being capable of mating with the mating slot.

According to one aspect of the invention, the second conductive terminal comprises: a support arm; and the arc-shaped connecting part is arranged at the free end of the supporting arm and protrudes towards the first conductive terminal.

According to one aspect of the invention, the first connector includes three first conductive terminals, and one first conductive terminal located in the middle has a first polarity, and two first conductive terminals located at both sides have a second polarity; the second connector comprises three second conductive terminals, the three second conductive terminals are suitable for being electrically connected with the three first conductive terminals respectively, one second conductive terminal in the middle has a first polarity, and two second conductive terminals on two sides have a second polarity.

According to one aspect of the invention, the connector assembly further comprises: first leads inserted into the first housing and electrically connected to the first conductive terminals, respectively; and second wires inserted into the second housing and electrically connected to the second conductive terminals, respectively.

According to one aspect of the invention, the first conductive terminal includes a conductive pad such that the conductive pad is in face contact with the connecting portion of the second conductive terminal.

According to one aspect of the invention, the second conductive terminal comprises: a bottom wall, the support arm being bent from one end of the bottom wall such that the support arm and the connection portion are located above the bottom wall.

According to an aspect of the invention, the bottom wall forms a protrusion protruding toward the support arm to prevent the free end of the connecting portion from abutting on the bottom wall.

According to one aspect of the invention, the second conductive terminal further comprises: two retaining sidewalls extending perpendicularly from two opposite sides of the bottom wall, the connecting portion being confined between the two retaining sidewalls.

According to one aspect of the invention, the second conductive terminal further comprises: an upper wall extending from the free end of the retaining side wall to a side of the support arm facing away from the bottom wall to prevent further movement of the support arm away from the bottom wall.

According to one aspect of the invention, a ridge is provided on the connecting portion to enhance the electrical connection between the second conductive terminal and the first conductive terminal.

According to an aspect of the invention, the first connector comprises: and the accommodating groove is arranged in the matching groove and is used for accommodating the conductive gasket.

According to an aspect of the invention, the first connector comprises: a support mounted in the bottom of the mating groove, the receiving groove disposed on a side of the support facing the conductive terminals, the support including: a first through hole through which the first wire passes to be electrically connected to the conductive pad received in the receiving groove.

According to an aspect of the invention, the second connector further comprises: a base mounted in the second housing and including: a plurality of conductive pads to which bottom walls of the second conductive terminals are respectively soldered; and a plurality of channels through which the second wires are electrically connected with the conductive pads, respectively.

According to one aspect of the invention, the base further includes a positioning projection configured to be inserted into a positioning hole formed in the bottom wall to position the second conductive terminal on the base.

According to an aspect of the present invention, the first housing includes: a first cylindrical sidewall; and a first defining projection projecting from the bottom wall of the first housing to define, together with the first cylindrical side wall and the bottom wall of the first housing, a first accommodating portion accommodating the first magnetically attractive member; wherein the mating groove extends radially along the first cylindrical sidewall.

According to an aspect of the present invention, the second housing includes: a second cylindrical sidewall; the side wall of the matching bulge extends along the radial direction of the second shell and protrudes on the second cylindrical side wall so as to be suitable for being inserted into the matching groove of the first shell, and the second conductive terminal is in electrical contact with the conductive gasket.

According to an aspect of the invention, the second housing further comprises: and a second defining projection projecting from the bottom wall of the second housing to define a second accommodating portion accommodating the second magnetically attractive member together with the second cylindrical side wall and the bottom wall of the second housing.

According to an aspect of the invention, the second connector further comprises: a mounting bracket mounted in a second receiving portion of the second housing, the second magnetically attractive part being received in the mounting bracket.

According to one aspect of the invention, the mounting frame comprises: a circular arc-shaped vertical wall; two arc-shaped end walls which are respectively connected to the upper end and the lower end of the vertical wall in the axial direction; and a stopper portion connected to both sides of the standing wall in the circumferential direction and located between the two end walls so as to be adapted to define the second magnetically attractive part in the mounting frame together with the two end walls and the standing wall.

According to one aspect of the invention, a plurality of second through holes are provided in the end wall of the mounting bracket.

According to an aspect of the present invention, the first magnetically attractive part and the second magnetically attractive part are opposite to each other in the axial direction and both have a substantially annular contour.

According to one aspect of the invention, at least one of the first and second magnetically attractive parts is a magnet.

According to one aspect of the invention, the magnet is a neodymium iron boron magnet.

According to one aspect of the invention, the first and second conductive terminals are made of a copper nickel silicon alloy.

Drawings

The invention will be described in further detail with reference to the accompanying drawings, in which:

FIG. 1 is a perspective schematic view of a connector assembly according to an exemplary embodiment of the present invention;

FIG. 2 is an exploded schematic view of the connector assembly shown in FIG. 1;

FIG. 3 is another exploded schematic view of the connector assembly shown in FIG. 1;

FIG. 4 is a perspective view of a first housing of the connector assembly shown in FIG. 1;

FIG. 5 is a front view of the first housing shown in FIG. 4;

FIG. 6 is a perspective view of a bracket for the connector assembly shown in FIG. 3;

FIG. 7 is a rear view of the bracket shown in FIG. 6;

FIG. 8 is a perspective view of a second housing of the connector assembly shown in FIG. 1;

FIG. 9 is a front view of the second housing shown in FIG. 8;

FIG. 10 is a front view of a mounting bracket for the connector assembly shown in FIG. 2;

fig. 11 is a perspective view of the base mounted with the second conductive terminal and the second wire for the connector assembly shown in fig. 2;

FIG. 12 is a front view of the base shown in FIG. 11;

FIG. 13 is a side view of the base shown in FIG. 11;

fig. 14 is a perspective view of a second conductive terminal mounted on the base of fig. 11;

fig. 15 is a side view of the second conductive terminal of fig. 14; and

fig. 16 is a bottom view of the second conductive terminal shown in fig. 14.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

FIG. 1 is a perspective schematic view of a connector assembly according to an exemplary embodiment of the present invention; FIG. 2 is an exploded schematic view of the connector assembly shown in FIG. 1; FIG. 3 is another exploded schematic view of the connector assembly shown in FIG. 1; fig. 14 is a perspective view of a second conductive terminal used in the connector assembly of fig. 2 and 3; fig. 15 is a side view of the second conductive terminal of fig. 14; fig. 16 is a bottom view of the second conductive terminal shown in fig. 14.

As shown in fig. 1-3 and 14-16, a connector assembly 100 according to an exemplary embodiment of the present invention includes: a first connector 1 and a second connector 2.

The first connector 1 includes: a first housing 10; a plurality of first conductive terminals 13 arranged in a row and fixed in the first housing 10; a first magnetic attraction part 11, the first magnetic attraction part 11 being mounted in the first housing 10, being arranged on at least one of opposite sides of the row of first conductive terminals 13 in a direction orthogonal to a row direction of the row of first conductive terminals.

The second connector 2 includes: a second housing 20; a plurality of second conductive terminals 23 arranged in a row in the row direction and fixed in the second housing; and a second magnetic attraction member 21, the second magnetic attraction member 21 being mounted in the second housing 20, being arranged on at least one of opposite sides of the column of the second conductive terminals 23 in a direction orthogonal to the column direction.

The first and second magnetically attractive parts 11 and 21 are arranged to attract each other so that the plurality of first conductive terminals 13 are electrically connected to the plurality of second conductive terminals 23, respectively, and also facilitate quick connection between the first and

second connectors

1 and 2.

According to an exemplary embodiment of the present invention, the row of first conductive terminals 13 is disposed in the mating slot 18 of the first housing 10; and the array of second conductive terminals 23 is arranged on the mating projections 26 of the second housing 20 which are capable of cooperating with the mating grooves, thereby also facilitating a quick connection between the first connector 1 and the second connector 2.

According to an exemplary embodiment of the invention, the second conductive terminal comprises: a support arm 231; and an arc-shaped connecting portion 232 disposed at a free end of the support arm and protruding toward the first conductive terminal.

Since the first and second

conductive terminals

13 and 23 are fixed in the connector assembly 100, and the connecting portion 232 extends obliquely upward at the free end of the support arm 231 and then bends to extend obliquely downward to be arranged in an arc shape, while the first and second

conductive terminals

13 and 23 are stably abutted against each other, the contact area of the connecting portion 232 and the first conductive terminal 13 is increased, stable connection for a large current is realized, the structure is simplified, and the cost is reduced.

As shown in fig. 2 to 3, according to an exemplary embodiment of the present invention, the first connector includes three first conductive terminals 13, and one first conductive terminal 13 located in the middle has a first polarity, and two first conductive terminals 13 located at both sides have a second polarity; the second connector includes three second conductive terminals 23 adapted to be electrically connected to the three first conductive terminals 13, one second conductive terminal 23 in the middle has a first polarity, and two second conductive terminals 23 on both sides have a second polarity.

Meanwhile, the magnetic attraction parts 11, 21 may be respectively disposed at opposite sides of each column of the

conductive terminals

13, 23 in a direction orthogonal to the column direction, so that the

conductive terminals

13, 23 and the magnetic attraction parts 11, 21 are symmetrically disposed, so that the first connector 1 and the second connector 2 can be mated positively and negatively without causing a situation in which conductive terminals of different polarities are electrically connected to each other when the first connector 1 and the second connector 2 are mated with each other, enhancing safety, convenience, and practicability of the connector assembly 100.

As shown in fig. 2-3, according to an exemplary embodiment of the present invention, the connector assembly 100 further comprises: a first conductive line 12 and a second conductive line 22. The first wires 12 are inserted into the first housing 10 and electrically connected to the first conductive terminals 13, respectively. The second wires 22 are inserted into the second housing 20 and electrically connected to the second conductive terminals 23, respectively.

As shown in fig. 3, according to an exemplary embodiment of the present invention, the first conductive terminal 13 includes a conductive pad, such that the conductive pad is in surface contact with the connecting portion 232 of the second conductive terminal 23, so as to increase a contact area between the connecting portion 232 and the conductive pad, and further enable the connector assembly 100 to be used under high power conditions.

As shown in fig. 14-16, according to an exemplary embodiment of the present invention, the second conductive terminal 23 includes: a bottom wall 234, and the support arm 231 is bent from one end of the bottom wall 234, first extends from the end, then is bent upward by, for example, 90 °, and then is bent toward the end by, for example, 90 °, so that the support arm 231 is substantially parallel to the bottom wall 234, and the support arm 231 and the connecting portion 232 are located above the bottom wall 234. The bottom wall 234 is spaced from the connection 232 when the connection 232 is not abutting the conductive pad; the bottom wall 234 prevents the connecting portion 232 from being pushed down excessively when the connecting portion 232 abuts against the conductive pad.

According to an exemplary embodiment of the present invention, a protrusion 2341 protruding toward the support arm 231 is formed at a portion of the bottom wall 234 near the support arm 231, and the degree of flexure of the support arm 231 is increased to prevent the free end of the connection portion 232 from abutting on the bottom wall 234 when the connection portion 232 abuts on the conductive pad.

According to an exemplary embodiment of the present invention, the second conductive terminal 23 further includes: two position-limiting side walls 235 extending vertically upward from two opposite sides of the bottom wall 234, so that the connecting portion 232 is confined between the two position-limiting side walls 235 to prevent lateral movement of the connecting portion 232 when the connecting portion 232 abuts against the conductive pad, further enhancing the stability of the electrical connection between the connecting portion 232 and the conductive pad.

According to an exemplary embodiment of the present invention, the second conductive terminal 23 further includes: an upper wall 233 extending from the free end of the retaining side wall 235 to the side of the support arm 231 facing away from the bottom wall 234 to prevent further movement of the support arm 231 away from the bottom wall 234 to enhance the mechanical stability of the support arm 231.

According to an exemplary embodiment of the present invention, a ridge 2321 is provided on the connection portion 232 to enhance the electrical connection between the second conductive terminal 23 and the first conductive terminal 13.

FIG. 6 is a perspective view of the bracket 14 for the connector assembly 100 shown in FIG. 3; fig. 7 is a rear view of the bracket 14 shown in fig. 6.

As shown in fig. 3, 6 and 7, the first connector 1 includes: a bracket 14, the bracket 14 being mounted in the bottom 181 of the mating groove. The holder 14 includes: a receiving groove 141 and a first through hole 142. The receiving groove 141 is provided on a side of the bracket 14 facing the conductive terminal to receive the conductive pad. The first wire 12 passes through the first through hole 142 to be electrically connected to the conductive pad received in the receiving groove 141 by a suitable method such as soldering. The conductive pad is stably mounted in the first housing 10 by the bracket 14, and a reliable electrical connection between the conductive pad and the first wire 12 is achieved.

Alternatively, in the case where the holder 14 is not provided, the receiving groove for receiving the conductive pad may be provided directly in the fitting groove of the first connector.

Fig. 11 is a perspective view of the base 15 with the second conductive terminals 23 and the second wires 22 mounted thereto for use in the connector assembly 100 shown in fig. 2; FIG. 12 is a front view of the base 15 shown in FIG. 11; fig. 13 is a side view of the base 15 shown in fig. 11.

As shown in fig. 2, 11, 12 and 13, according to an exemplary embodiment of the present invention, the second connector 2 further includes a base 15. The base 15 is installed in the second housing 20 and includes: a plurality of conductive pads (not shown) and a plurality of vias 151. The bottom walls 234 of the second conductive terminals 23 are soldered to the conductive pads, respectively, to be electrically connected thereto. The second wires 22 are electrically connected to the conductive pads through the channels 151, respectively, and are fixed in the channels 151 by a suitable method, such as soldering.

For clarity, the channel 151 is shown disposed on the surface of the base 15, however this is not limiting and the channel 151 may be disposed within the base 15 and through the base 15. A post may also be provided on the side of the base 15 opposite the side on which the second conductive terminal 23 is located, the post being electrically connected to the channel 151, such that the second wire 22 is soldered, wound or otherwise electrically connected to the post in a suitable manner to electrically connect the second wire 22 and the second conductive terminal 23.

According to an exemplary embodiment of the present invention, the base 15 further includes a positioning protrusion (not shown) configured to be inserted into a positioning hole 2341 formed in the bottom wall 234 to accurately position the second conductive terminal 23 on the base 15. The number and position of the positioning projections may be set according to a desired arrangement.

Fig. 4 is a perspective view of the first housing 10 of the connector assembly 100 shown in fig. 1; fig. 5 is a front view of the first housing 10 shown in fig. 4.

As shown in fig. 4 and 5, according to an exemplary embodiment of the present invention, the first housing 10 includes: a first cylindrical side wall 16, a first defining projection 17 and a mating groove 18 as described above.

The first defining projection 17 projects from the bottom wall 101 of the first casing 10 to define, together with the first cylindrical side wall 16 and the bottom wall 101 of the first casing 10, a first accommodating portion 102 that accommodates the first magnetically attractive part 11. In the present exemplary embodiment, the mating groove 18 extends radially along the first cylindrical sidewall 16.

In the present embodiment, the two first defining projections 17 are provided in a semicircular shape, symmetrically with respect to the fitting groove 18, and the two first receiving portions 102 are also provided in a semicircular shape, symmetrically with respect to the fitting groove 18. It should be understood, however, that this is not limitative, and the shapes of the first defining protrusion 17 and the first receiving portion 102 may be provided as needed. The first connection hole 103 is provided in the first housing 10, through which the first wire 12 is inserted to be electrically connected with the rack 14 received in the bottom 181 of the fitting groove 18.

Fig. 8 is a perspective view of the second housing 20 of the connector assembly 100 shown in fig. 1; fig. 9 is a front view of the second housing 20 shown in fig. 8.

As shown in fig. 8 and 9, according to an exemplary embodiment of the present invention, the second housing 20 includes: a second cylindrical side wall 24 and the mating projection 26 described above. The fitting projection has a hollow cavity for receiving the base and the second conductive terminal, and a sidewall of the fitting projection 26 extends in a radial direction of the second housing 20 and protrudes on the second cylindrical sidewall 24 to be adapted to be inserted into the fitting groove 18 of the first housing 10 such that the second conductive terminal 23 is in electrical contact with the conductive pad.

According to an exemplary embodiment of the present invention, the second housing 20 further includes: and a second defining projection 25 projecting from the bottom wall 201 of the second housing 20 to define, together with the second cylindrical side wall 24 and the bottom wall 201 of the second housing 20, a second accommodating portion 202 accommodating the second magnetically attractive part 21. Like the first housing 10, the two second defining projections 25 are arranged in a semicircular shape, symmetrically with respect to the fitting projection 26, and the two second receiving portions 202 are also arranged in a semicircular shape, symmetrically with respect to the fitting projection 26. It should be understood, however, that this is not limitative, and the shapes of the second defining protrusion 25 and the second receiving portion 202 may be provided as needed. The second connection hole 203 is provided in the second housing 20, and the second wire 22 is inserted through the second connection hole 203 to be electrically connected to the base 15 received in the fitting projection 26.

Fig. 10 is a front view of the mounting bracket for receiving a magnet of the connector assembly 100 shown in fig. 2. As shown in fig. 10, according to an exemplary embodiment of the present invention, the second connector 2 further includes: a mounting bracket 211 mounted in the second receiving portion 202 of the second housing 20, the second magnetically attractive part 21 being received in the mounting bracket. When the second magnetic attraction member 21 is a magnet, the mounting bracket is advantageous in enhancing the magnetism of the magnet in addition to the function of fixing the second magnetic attraction member 21.

According to an exemplary embodiment of the present invention, the mounting bracket 211 includes: an arc-shaped upright wall 2111, two arc-shaped end walls 2112, and a stopper portion 2113. Two arc-shaped end walls 2112 are connected to the upper end and the lower end of the upright wall in the axial direction, respectively. And a stopper portion 2113 connected to both sides of the standing wall in the circumferential direction and located between the two end walls so as to be adapted to define the second magnetically attractive part 21 in the mounting bracket together with the two end walls and the standing wall.

According to an exemplary embodiment of the present invention, a plurality of second through holes 2114 are provided in the end wall 2112 of the mounting bracket to enhance the attraction force between the first and second magnetically attractive parts 11 and 21.

As shown in fig. 3, according to an exemplary embodiment of the present invention, the first magnetically attractive part 11 and the second magnetically attractive part 21 are opposed to each other in the axial direction and both have a substantially annular contour. At least one of the first and second magnetically attractive parts 11 and 21 is a magnet, and the other is a magnet or a metal. In one exemplary embodiment, the magnet is a neodymium iron boron magnet. This eliminates the need to separately provide a mechanical holding member for engaging the first connector 1 and the second connector 2 together or separating them as needed in the connector assembly 100, and facilitates both the engagement of the first connector 1 and the second connector 2 by generating a large attractive force therebetween to produce a stable electrical connection and the separation of the first connector 1 and the second connector 2.

According to an exemplary embodiment of the present invention, the first conductive terminal 13 and the second conductive terminal 23 are made of a copper-nickel-silicon alloy, so that the first conductive terminal 13 and the second conductive terminal 23 have good mechanical properties and can withstand a large current, thereby facilitating quick charging of the connector assembly 100.

The stress relief portion 27 is provided at a portion of the first housing which is bonded to the first lead and/or at a portion of the second housing which is bonded to the second lead, so as to prevent the first lead and the second lead from being damaged due to excessive stress at the portion.

It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.

Having described preferred embodiments of the present invention in detail, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and the invention is not to be limited to the exemplary embodiments set forth herein.

Claims

1. A connector assembly, comprising:

a first connector comprising:

a first housing;

a plurality of first conductive terminals arranged in a row and fixed in the first housing;

first magnetic attraction parts mounted in the first housing and arranged on opposite sides of a row of first conductive terminals in a direction orthogonal to the row direction of the row of first conductive terminals; and

a second connector comprising:

a second housing;

a plurality of second conductive terminals arranged in a row in the row direction and fixed in the second housing;

a second magnetic attraction member mounted in the second housing and arranged on opposite sides of a row of the second conductive terminals in a direction orthogonal to the row direction;

a mounting bracket mounted in the second housing, the second magnetically attractive part being accommodated in the mounting bracket, the mounting bracket including: a circular arc-shaped vertical wall; two arc-shaped end walls respectively connected to the upper end and the lower end of the vertical wall in the axial direction; and a stopper part connected to both sides of the standing wall in a circumferential direction and located between the two end walls so as to be adapted to define the second magnetically attractive part in the mounting bracket together with the two end walls and the standing wall;

wherein the first and second magnetically attractive parts are configured to attract each other to electrically connect the plurality of first conductive terminals to the plurality of second conductive terminals, respectively,

the first connector comprises three first conductive terminals, wherein one first conductive terminal in the middle has a first polarity, and two first conductive terminals on two sides have a second polarity; and

the second connector comprises three second conductive terminals which are suitable for being electrically connected with the three first conductive terminals respectively, one second conductive terminal in the middle has a first polarity, and two second conductive terminals on two sides have a second polarity, so that the first connector and the second connector can be matched in a positive and negative way,

the first magnetically attractive part has an annular profile extending in an arc from one end of the column of first electrically conductive terminals toward an opposite end of the column of first electrically conductive terminals.

2. The connector assembly of claim 1,

the column of first conductive terminals is disposed in the mating slot of the first housing; and is

The row of second conductive terminals is arranged on the matching protrusion of the second shell, and the matching protrusion can be matched with the matching groove.

3. The connector assembly of claim 2, wherein the second conductive terminal comprises:

a support arm; and

and the arc-shaped connecting part is arranged at the free end of the supporting arm and protrudes towards the first conductive terminal.

4. The connector assembly of claim 3, further comprising:

first leads inserted into the first housing and electrically connected to the first conductive terminals, respectively; and

and the second wires are inserted into the second shell and are respectively and electrically connected with the second conductive terminals.

5. The connector assembly of claim 4, wherein the first conductive terminal includes a conductive pad such that the conductive pad is held in face contact with the connecting portion of the second conductive terminal.

6. The connector assembly of claim 5, wherein the second conductive terminal comprises:

a bottom wall, the support arm being bent from one end of the bottom wall such that the support arm and the connection portion are located above the bottom wall.

7. The connector assembly of claim 6, wherein:

the bottom wall forms a protrusion protruding toward the support arm to prevent the free end of the connecting portion from abutting against the bottom wall.

8. The connector assembly of claim 6 or 7, wherein the second conductive terminal further comprises:

two retaining side walls extending perpendicularly from two opposite side portions of the bottom wall, the connecting portion being retained between the two retaining side walls.

9. The connector assembly of claim 8, wherein the second conductive terminal further comprises:

an upper wall extending from the free end of the retaining side wall to a side of the support arm facing away from the bottom wall to prevent further movement of the support arm away from the bottom wall.

10. The connector assembly of any one of claims 5-7 and 9, wherein a ridge is provided on the connecting portion to enhance the electrical connection between the second conductive terminal and the first conductive terminal.

11. The connector assembly of any of claims 5-7 and 9, wherein the first connector comprises: and the accommodating groove is arranged in the matching groove and is used for accommodating the conductive gasket.

12. The connector assembly of claim 11, wherein the first connector comprises:

a support mounted in the bottom of the mating groove, the receiving groove disposed on a side of the support facing the conductive terminals, the support including:

a first through hole through which the first wire passes to be electrically connected to the conductive pad received in the receiving groove.

13. The connector assembly of claim 12, wherein the second connector further comprises:

a base mounted in the second housing and including:

a plurality of conductive pads to which bottom walls of the second conductive terminals are respectively soldered; and

and the second wires are electrically connected with the conductive bonding pads through the channels respectively.

14. The connector assembly of claim 13,

the base further includes a positioning boss configured to be inserted into a positioning hole formed in the bottom wall to position the second conductive terminal on the base.

15. The connector assembly of claim 14, wherein the first housing comprises:

a first cylindrical sidewall; and

a first defining projection projecting from the bottom wall of the first housing to define, together with the first cylindrical side wall and the bottom wall of the first housing, a first accommodating portion accommodating the first magnetically attractive member;

wherein the mating groove extends radially along the first cylindrical sidewall.

16. The connector assembly of claim 15, wherein the second housing comprises:

a second cylindrical sidewall;

wherein the fitting protrusion has a hollow cavity accommodating the base and the second conductive terminal, and a sidewall of the fitting protrusion extends in a radial direction of the second housing and protrudes on the second cylindrical sidewall to be adapted to be inserted into the fitting groove of the first housing such that the second conductive terminal is electrically contacted with the conductive pad.

17. The connector assembly of claim 16, wherein the second housing further comprises: and a second defining projection projecting from the bottom wall of the second housing to define, together with the second cylindrical side wall and the bottom wall of the second housing, a second accommodating portion accommodating the second magnetically attractive member.

18. The connector assembly of claim 17, wherein the mounting bracket is mounted in a second receptacle of the second housing.

19. The connector assembly of claim 1, wherein a plurality of second through holes are provided in the end wall of the mounting bracket.

20. The connector assembly of any of claims 1-7, 9, 12-19,

the second magnetically attractive part is opposite to the first magnetically attractive part in the axial direction and has a contour corresponding to the annular contour.

21. The connector assembly of any of claims 1-7, 9, 12-19,

at least one of the first and second magnetically attractive parts is a magnet.

22. The connector assembly of claim 21,

the magnet is a neodymium iron boron magnet.

23. The connector assembly of any of claims 1-7, 9, 12-19, and 22,

the first conductive terminal and the second conductive terminal are made of copper-nickel-silicon alloy.