CN111711033B

CN111711033B - Electric connector, electric connector combination and electronic device

Info

Publication number: CN111711033B
Application number: CN201910203055.5A
Authority: CN
Inventors: 范建峰; 张学清
Original assignee: Molex Interconnect Shanghai Co Ltd; Molex LLC
Current assignee: Molex Interconnect Shanghai Co Ltd; Molex LLC
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2022-06-07
Anticipated expiration: 2039-03-18
Also published as: CN111711033A; TW202037019A; TWI754142B

Abstract

The invention provides an electric connector, an electric connector combination and an electronic device. The electric connector comprises a shell, an electric connecting plate and a transfer connector. The electric connection board is assembled in the shell. The electrical connection plate includes a plurality of contact rings. The contact rings are concentrically spaced apart and electrically isolated from each other. The adapter connector is assembled in the shell and is arranged on the back of the electric connection plate. The adapter connector includes a plurality of adapter terminals. Each adapting terminal comprises a tail part and an elastic contact part. The tail portion of each transfer terminal is individually electrically connected to a corresponding one of the contact rings. Therefore, the electric connector has the assembling characteristic of easy assembly and disassembly.

Description

Electric connector, electric connector combination and electronic device

Technical Field

The present disclosure relates to an electrical connector, and a related electrical connector assembly and an electronic device, and more particularly, to an electrical connector with a contact ring.

Background

In the field of connectors, most connection solutions for rotational applications employ cylindrical crimp terminals (pogo pins) as the terminals of the connector. However, the cost of the cylindrical crimp terminal is relatively high. In addition, because the compression stroke required during the mating process of the cylindrical crimp terminal is relatively large, and because of the limitation of the internal structure of the cylindrical crimp terminal, the head of the cylindrical crimp terminal is usually higher than the height of the interface, or the contact stroke of the elastic terminal is more than the limit of the height in a multiple manner compared to the existing plate-formed elastic terminal.

Further, chinese publication No. 101790824 a (U.S. corresponding patent publication No. 2009/0038928A 1) discloses an electrical contact member including a first laterally extending arm having a first contact point formed at its tip, and a second laterally extending arm having a second contact point formed at its tip. The electrical contact member is in contact with a first contact ring and a second conductive ring. Although this patent employs a configuration in which the resilient terminal contacts the conductive ring, how is the conductive ring disposed within the device? How can assembly be facilitated? Is a problem that must be overcome.

The above "background" description merely provides background, and no admission is made that the above "background" description discloses subject matter of the present application and does not constitute background of the present application, and any description of the above "background" should not be taken as an admission that the present application is of any sort.

Disclosure of Invention

Embodiments of the present application provide an electrical connector. The electrical connector includes a mating end, a mounting end, a housing, an electrical connection board and a transfer connector. The shell is provided with an opening facing the butt joint end and a mounting opening facing the mounting end. The electric connection board is assembled in the shell and is provided with a butting surface and an opposite back surface. The abutment surface is exposed from the opening of the housing. The electrical connection plate includes a plurality of contact rings. The contact rings are concentrically arranged in a spaced apart arrangement and are disposed on the mating face and are electrically insulated from each other. The adapter connector is assembled in the shell and is arranged on the back of the electric connection plate. The adapter connector includes a plurality of adapter terminals. Each adapting terminal comprises a tail part and an elastic contact part. The tail portion of each transfer terminal is electrically connected to a corresponding one of the contact rings.

In some embodiments, the adaptor connector further comprises a housing assembled to the housing, wherein the electrical connection board is sandwiched between the opening of the housing and the adaptor connector.

In some embodiments, the electrical connection board further comprises: and a plurality of electric contacts which are arranged on the back surface of the electric connection plate and are respectively and electrically connected to the contact ring, wherein the switching terminal is a sheet terminal manufactured by a pressing forming technology. The tail part of each adapter terminal is respectively welded to the electric contact, and the elastic contact part of each adapter terminal faces the mounting opening.

In some embodiments, the electrical connection board and the adaptor connector are assembled into the housing from the mounting opening, and the opening of the housing includes an inwardly extending brim configured to stop the electrical connection board.

In some embodiments, the electrical connection board includes at least one limiting protrusion disposed on an outer edge of the electrical connection board. The shell comprises at least one limiting groove arranged on one inner surface of the shell to limit the limiting lug of the electric connecting plate.

In some embodiments, the adapter connector further comprises at least one catch disposed on a housing of the adapter connector, and wherein the housing comprises at least one catch groove disposed on an inner face of the housing to mate with the catch of the housing.

In some embodiments, the adapter connector further comprises at least one rib disposed on the housing of the adapter connector to abut against the inner face of the housing.

In some embodiments, only the contact ring and the plurality of electrical pads are disposed on the electrical connection board.

In some embodiments, the resilient contact portion of each transfer terminal is configured to contact an electrical pad on a circuit board within a device.

Another embodiment of the present application provides an electrical connector assembly. The electrical connector assembly includes an electrical connector and a mating electrical connector. The electric connector is detachably assembled on a device. The electrical connector includes a mating end, a housing, an electrical connection board and a transfer connector. The shell is provided with an opening facing the butt joint end and a mounting opening facing the mounting end. The electric connection board is assembled in the shell and is provided with a butting surface and an opposite back surface. The abutment surface is exposed from the opening of the housing. The electrical connection plate includes a plurality of contact rings. The contact rings are concentrically arranged in a spaced apart arrangement and are disposed on the mating face and are electrically insulated from each other. The adapter connector is assembled in the shell and is arranged on the back of the electric connection plate. The adapter connector includes a plurality of adapter terminals. Each of the adapting terminals has a tail portion and an elastic contact portion. The tail portion of each transfer terminal is electrically connected to a corresponding one of the contact rings of the electrical connection plate. The butt-joint electric connector comprises a base body and a plurality of conductive terminals arranged on the base body. Each conductive terminal includes a resilient contact portion configured to contact a corresponding ring of the contact ring.

In some embodiments, the housing of the mating electrical connector includes a receiving recess configured to receive the mating end of the electrical connector.

In some embodiments, the conductive terminals of the mating electrical connector are blade terminals made by a press-molding technique.

In some embodiments, the resilient contact portion of each conductive terminal of the mating electrical connector extends into the opening of the housing to contact a corresponding one of the contact rings.

Yet another embodiment of the present application provides an electronic device. The electronic device comprises a device and an electric connector. The device comprises a circuit board and a plurality of electric connecting pads. The electrical pads are disposed on the circuit board. The electric connector is detachably assembled on the device. The electrical connector includes a mounting end, a mating end, a housing, an electrical connection board and a transfer connector. The mounting end is mounted to the device. The shell is provided with an opening facing the butt joint end and a mounting opening facing the mounting end. The electric connection board is assembled in the shell and is provided with a butting surface and an opposite back surface. The abutment surface is exposed from the opening of the housing. The electrical connection plate includes a plurality of contact rings. The contact rings are concentrically arranged in a spaced apart arrangement and are disposed on the mating face and are electrically insulated from each other. The adapter connector is assembled in the shell and is arranged on the back of the electric connection plate. The adapter connector includes a plurality of adapter terminals. Each adapting terminal comprises a tail part and an elastic contact part. The tail portion of each relay terminal is electrically connected to a corresponding one of the contact rings, and the resilient contact portion of each relay terminal is contacted and electrically connected to an electrical pad on the circuit board.

In this application, the electrical connection board providing the electrical connection and a circuit board on which the electronic components for operating a device are disposed are taken as two separate components. Therefore, the material and/or plating thickness of the electrical connection board and the circuit board can be different. For example, the strength, wear resistance and conductivity of the electrical connection board can be enhanced. In addition, since the electrical connection board for providing electrical connection is separated from the circuit board, the circuit board can provide a relatively large space for mounting electronic components, thereby completing a relatively complicated circuit layout.

In addition, the electric connector and the butt electric connector can rotate relatively. As mentioned above, since the electrical connection board for providing electrical connection is separated from the circuit board, when the electrical connection board is damaged, only the electrical connector needs to be replaced to replace the electrical connection board, and the circuit board does not need to be replaced, so that the cost of the electronic components disposed on the circuit board is relatively high. Therefore, the structure of the electric connector can reduce the maintenance cost of the electronic device.

In addition, the electric connection board and the adapter connector are assembled on the shell to form an assembly of the electric connector. Thus, the electrical connector can be replaced by simply removing the housing from the device. Therefore, the electric connector has the characteristic of easy assembly and disassembly, thereby being beneficial to repair or replacement.

The foregoing has outlined rather broadly the features and advantages of the present application in order that the detailed description of the application that follows may be better understood. Additional features and advantages will be described hereinafter which form the subject of the claims of the application. It should be appreciated by those skilled in the art that the conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures or processes for carrying out the same purposes of the present application. It should also be realized by those skilled in the art that such equivalent constructions do not depart from the spirit and scope of the application as set forth in the appended claims.

Drawings

The disclosure may be more completely understood in consideration of the detailed description in combination with the appended claims, in connection with which like reference numerals refer to like elements.

Fig. 1 is an exploded perspective view of an electronic device.

Fig. 2 is an exploded perspective view of the electronic device associated with fig. 1 from another perspective.

Fig. 3 is an exploded perspective view of a mating electrical connector of an electrical connector assembly of the electronic device of fig. 1.

Fig. 4 is an exploded perspective view of an electrical connector of the electrical connector assembly of the electronic device of fig. 1 and a device of the electronic device.

Fig. 5 is an exploded perspective view at another angle relative to the configuration of fig. 4.

Fig. 6 is an exploded perspective view of the electrical connector associated with fig. 4.

Fig. 7 is an exploded perspective view of the electrical connector of fig. 6 at another angle.

Fig. 8 is an exploded perspective view of the adaptor connector of fig. 6.

Fig. 9 is a perspective view of the electronic device assembly shown in fig. 1, wherein a base of the mating electrical connector is omitted.

Description of the reference numerals:

1 electronic device

2 electric connector combination

3-butt electric connector

4 electric connector

5 outer cover

6 electric connection board

7 switching connector

20 device

30 butt joint end

32 seat body

34 conductive terminal

40 butt joint end

42 mounting end

50 opening

52 inner face

54 mounting port

60 butt joint surface

62 back side

64 contact ring

66 outer edge

70 switching terminal

72 casing

74 outer edge

75 fastener block

76 Ribs

77 terminal receiving groove

78 fixing groove

200 circuit board

202 electric contact pad

320 accommodation concave part

322 butt joint surface

330 terminal containing groove

332 fixing groove

334 opening holes

340 limit convex part

342 elastic contact part

343 convex hull

344 spring arm

346 fixing part

347 interference bump

348 trailing part

500 eaves edge

520 limiting groove

522 catching groove

524 guide recess

620 electric contact

660 limit bump

710 resilient contact

712 convex hull

720 elastic arm

730 fixed part

732 interference bumps

740 tail portion.

Detailed Description

The embodiments or examples of the disclosure shown in the drawings are described in specific language. It will nevertheless be understood that no limitation of the scope of the application is thereby intended. Any alterations and modifications in the described embodiments, and any further applications of the principles as described herein are contemplated as would normally occur to one skilled in the art to which the disclosure relates. Reference numerals may be repeated among the embodiments, but even if they have the same reference numerals, features of an embodiment are not necessarily used in another embodiment.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present inventive concept.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the inventive concepts. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

Fig. 1 is an exploded perspective view of an electronic device 1. Fig. 2 is an exploded perspective view of the electronic device 1 of fig. 1 from another perspective. In some embodiments, the electronic device 1 comprises an electronic cigarette. Referring to fig. 1 and 2, the electronic device 1 includes an electrical connector assembly 2 and a device 20. The electrical connector assembly 2 includes a mating electrical connector 3 and an electrical connector 4, wherein the electrical connector 4 is detachably assembled and disposed on the device 20 and is configured to plug the mating electrical connector 3 in a mating direction. In some embodiments, the device 20 comprises part of the electronic components of an electronic cigarette.

Fig. 3 is an exploded perspective view of the mating electrical connector 3 of the electrical connector assembly 2 of the electronic device 1 of fig. 1. Referring to fig. 3, the mating electrical connector 3 includes a mating end 30 (shown in fig. 2), a housing 32 and a plurality of conductive terminals 34. The present embodiment includes four conductive terminals 34. In the present embodiment, the portion of the housing 32 that mates with the electrical connector 4 serves as the mating end 30. Each conductive terminal 34 is a plate-shaped terminal manufactured by a press molding technique, and each conductive terminal 34 is assembled on the seat 32.

Each conductive terminal 34 includes a limit protrusion 340, a resilient contact portion 342, a fixing portion 346, a resilient arm 344 connecting the resilient contact portion 342 and the fixing portion 346, and a tail portion 348 connected to the fixing portion 346 (as shown in fig. 1).

The housing 32 includes a receiving recess 320 having a mating surface 322, a plurality of terminal receiving slots 330, and an opposite surface 324 opposite to the mating surface 322. Each conductive terminal 34 is received in the terminal receiving groove 330. Each terminal receiving cavity 330 includes a fixing groove 332 and an opening 334 disposed on the mating surface 322. In detail, the fixing portion 346 of each conductive terminal 34 is fixed in the corresponding fixing slot 332, the elastic contact portion 342 of each conductive terminal 34 is exposed from the corresponding opening 334 and protrudes from the abutting surface 322 of the accommodating recess 320 (as shown in fig. 2), the limit protrusion 340 of each conductive terminal 34 is located on the inner surface of the opening 334 to limit the height of the elastic contact portion 342 of each conductive terminal 34 protruding from the opening 334 to the abutting surface 322, and the tail portion 348 of each conductive terminal 34 protrudes from the opposing surface 324 (as shown in fig. 1).

In the present embodiment, two interference protrusions 347 are respectively disposed at both sides of the fixing portion 346 to be interference-fixed with the wall surface of the fixing groove 332.

In the present embodiment, the elastic contact portion 342 is provided with a convex hull 343 for electrically and mechanically connecting with the electrical connector 4. However, the present application is not limited thereto. In some embodiments, the convex hull 343 may not be disposed on the resilient contact portion 342.

Fig. 4 is an exploded perspective view of the electrical connector 4 of the electrical connector assembly 2 of the electronic device 1 of fig. 1 and the device 20 of the electronic device 1. Fig. 5 is an exploded perspective view at another angle relative to the configuration of fig. 4. Fig. 6 is an exploded perspective view of the electrical connector 4 related to fig. 4. Fig. 7 is an exploded perspective view of the electrical connector 4 of fig. 6 at another angle. Referring to fig. 4 to 7, the electrical connector 4 includes a mating end 40 for mating with the mating electrical connector 3, a mounting end 42 for mounting to the device 20, a housing 5 having an opening 50 facing the mating end 40 and a mounting port 54 facing the mounting end 42, and an electrical connection board 6 and a transfer connector 7 both assembled into the housing 5 from the mounting port 54, wherein the receiving recess 320 of the mating electrical connector 3 is configured to insert the mating end 40 of the electrical connector 4. In the present application, the direction pointing from the housing 5 toward the center of the housing 5 is an inward direction. Conversely, the direction from the center toward the housing 5 is the outward direction.

In the present embodiment, a portion where the housing 5 is butted against the mating electrical connector 3 and a portion where the electrical connection plate 6 is butted against the mating electrical connector 3 serve as the butting end 40.

In the present embodiment, a portion where the housing 5 is mounted to the device 20 and a portion where the adaptor connector 7 is mounted to the device 20 are taken as the mounting ends 42.

The electrical connection board 6 has a mating surface 60 and an opposite back surface 62, wherein the mating surface 60 is exposed from the opening 50 of the housing 5 (as shown in fig. 4). Further, the electrical connection plate 6 is interposed between the opening 50 of the housing 5 and the adaptor connector 7. In particular, the electrical connection plate 6 is stopped by an inwardly extending ledge 500 (shown in fig. 7) included in the opening 50 of the housing 5.

The electrical connection plate 6 comprises a plurality of contact rings 64 and a plurality of electrical contacts 620 disposed on the back surface 62 of the electrical connection plate 6 and individually electrically connected to the contact rings 64. The present embodiment includes three contact rings 64 and correspondingly three electrical contacts 620. In the present embodiment, the innermost contact ring 64 among the three contact rings 64 is configured in a circular shape, but the present invention is not limited thereto and may be configured in a ring shape. Three contact rings 64 are concentrically spaced apart and disposed on the mating face 60, are electrically insulated from one another, and are exposed from the opening 50 of the housing 5.

In addition, the electrical connection board 6 further includes at least one limiting protrusion 660 disposed on an outer edge 66 of the electrical connection board 6. The present embodiment includes two limit protrusions 660. Correspondingly, the housing 5 includes two limiting grooves 520 disposed on an inner surface 52 of the housing 5 to limit the two limiting protrusions 660 of the electrical connection board 6.

The relay connector 7 is disposed on the back surface 62 of the electrical connection board 6 and includes a plurality of relay terminals 70 and a housing 72. The housing 72 includes a terminal receiving groove 77 (shown in fig. 8) for receiving the adaptor terminal 70. In some embodiments, each relay terminal 70 is a blade terminal fabricated by a press-molding technique.

In addition, the adaptor connector 7 further includes at least one latching block 75 with an inclined surface disposed on an outer edge 74 of the housing 72 of the adaptor connector 7. This embodiment includes two catch blocks 75. Correspondingly, the housing 5 includes two guiding recesses 524 with slopes disposed on the inner surface 52 of the housing 5 to guide the two locking blocks 75 when the adaptor connector 7 enters from the mounting opening 54, and two locking grooves 522 to mate with the two locking blocks 75 of the housing 72 after the two locking blocks 75 pass through the two guiding recesses 524.

In addition, the adaptor connector 7 further includes at least one protruding strip 76 disposed on the housing 72 of the adaptor connector 7 to tightly press against the inner surface 52 of the housing 5. The present embodiment includes four ribs 76. However, the present application is not limited thereto. In some embodiments, the adapter connector 7 may not include the ribs 76.

Fig. 8 is an exploded perspective view of the adaptor connector 7 of fig. 6. Referring to fig. 8, each relay terminal 70 includes a resilient contact portion 710 contacting an electrical pad 202 on a circuit board 200 in the device 20, a fixing portion 730 fixed in a fixing groove 78 of the housing 72, a resilient arm 720 connecting the resilient contact portion 710 to the fixing portion 730, and a tail portion 740 electrically connected to a corresponding one of the three electrical contacts 620, respectively. In detail, the tail portion 740 of each adapting terminal 70 is electrically connected to three contact rings 64 by soldering, respectively, and the elastic contact portion 710 of each adapting terminal 70 faces the mounting opening 54.

In the present embodiment, two interference protrusions 732 are further disposed on both sides of the fixing portion 730 to be fixed by interference with the wall surfaces of the fixing groove 78.

In the present embodiment, the resilient contact portion 710 has a bump 712 for electrically and mechanically connecting with the electrical pad 202 of the circuit board 200. In some embodiments, the convex hull 712 may not be provided on the resilient contact 710.

In some embodiments, the electronic components for operating device 20 are disposed on circuit board 200 and not on electrical connection board 6, and electrical connection board 6 is provided with only contact ring 64 and electrical contacts 620. In other words, the electrical connection board 6 providing the electrical connection and the circuit board 200 on which the electronic components for operating the device 20 are disposed are provided as two separate components. Therefore, the material and/or plating thickness of the electrical connection board 6 and the circuit board 200 may be different. In addition, since the electrical connection board 6 is already separated from the circuit board 200, the circuit board 200 can provide a relatively large space for mounting electronic components, thereby completing a relatively complicated circuit layout.

In some embodiments, the electrical connector 4 and the mating electrical connector 3 are relatively rotatable. Since the electrical connection board 6 is independent, when the electrical connection board 6 is damaged, only the electrical connector 4 needs to be replaced to replace the electrical connection board 6, instead of replacing the circuit board 200, and the cost of the electronic components disposed on the circuit board 200 is relatively high. Therefore, the structure of the electrical connector 4 can reduce the maintenance cost of the electronic device 1.

In addition, the electrical connection board 6 and the adaptor connector 7 are assembled to the housing 5 to form a component of the electrical connector 4. Thus, the electrical connector 4 can be replaced by simply removing the housing 5 from the device 20. Therefore, the electrical connector 4 has the assembling characteristic of easy assembly and disassembly, thereby being beneficial to repair or replacement.

Fig. 9 is a perspective view of the electronic device 1 shown in fig. 1, wherein the housing 32 of the mating electrical connector 3 is omitted. Referring to fig. 9, the resilient contact portion 710 of each conductive terminal 34 extends into the opening 50 of the housing 5 to contact three corresponding contact rings 64, wherein two conductive terminals 34 contact on the same contact ring 64, in other words, the same contact ring 64 can contact more than two conductive terminals 34.

Although the present application and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application as defined by the appended claims. For example, many of the manufacturing processes described above may be performed in different ways and replaced with other manufacturing processes or combinations thereof.

Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present application, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present application. Accordingly, such processes, machines, manufacture, compositions of matter, means, methods, or steps, are intended to be included within the scope of the present claims.

Claims

1. An electrical connector, comprising:

a butt end and a mounting end;

a housing having an opening facing the mating end and a mounting opening facing the mounting end;

an electrical connection board assembled in the housing and having a mating surface exposed from the opening of the housing and an opposite back surface, the electrical connection board comprising:

a plurality of contact rings concentrically arranged at intervals and disposed on the butting face and electrically insulated from each other; and

a switching connector assembled in the housing and disposed on the back of the electrical connection board, the switching connector comprising:

a plurality of switching terminals, each switching terminal including a tail portion and an elastic contact portion, the tail portion of each switching terminal being electrically connected to a corresponding one of the contact rings,

wherein the adapter connector further comprises a housing assembled to the housing, wherein the electrical connection board is sandwiched between the opening of the housing and the adapter connector,

wherein the electric connection board further comprises: and the plurality of electric contacts are arranged on the back surface of the electric connecting plate and are respectively and electrically connected to the contact ring, wherein the switching terminals are sheet terminals manufactured by a compression molding technology, tail parts of the switching terminals are respectively welded to the electric contacts, and elastic contact parts of the switching terminals face the mounting opening.

2. The electrical connector of claim 1, wherein the electrical connection board and the adapter connector are assembled into the housing from the mounting opening, the opening of the housing including an inwardly extending ledge configured to stop the electrical connection board.

3. The electrical connector of claim 1 or 2, wherein the electrical connection board comprises at least one position-limiting protrusion disposed on an outer edge of the electrical connection board, and wherein the housing comprises at least one position-limiting groove disposed on an inner face of the housing for limiting the position-limiting protrusion of the electrical connection board.

4. The electrical connector of claim 3, wherein the adapter connector further comprises at least one snap-fit block disposed on a housing of the adapter connector, and wherein the housing comprises at least one snap-fit groove disposed on an inner face of the housing to mate with the snap-fit block of the housing.

5. The electrical connector of claim 4, wherein the adapter connector further comprises at least one rib disposed on the housing of the adapter connector to press against the inner surface of the housing.

6. The electrical connector of claim 5, wherein only the contact ring and the plurality of electrical contacts are disposed on the electrical connection plate.

7. The electrical connector of claim 6, wherein the resilient contact portion of each transfer terminal is configured to contact an electrical pad on a circuit board within a device.

8. An electrical connector assembly comprising:

an electrical connector for removable assembly on a device, the electrical connector comprising:

a butt end and a mounting end;

a plurality of switching terminals, each switching terminal having a tail portion and an elastic contact portion, the tail portion of each switching terminal being electrically connected to a corresponding one of the contact rings of the electrical connection board; and

a mating electrical connector including a housing and a plurality of conductive terminals mounted on the housing, each conductive terminal including an elastic contact portion configured to contact a corresponding one of the contact rings,

the adapter connector also comprises a shell assembled to the shell, wherein the electric connecting plate is clamped between the opening of the shell and the adapter connector,

9. The electrical connector assembly of claim 8, wherein the electrical connection board and the adapter connector are assembled into the housing from the mounting opening, the opening of the housing including an inwardly extending ledge configured to stop the electrical connection board.

10. The electrical connector assembly of claim 8 or 9, wherein the electrical connection board comprises at least one position-limiting protrusion disposed on an outer edge of the electrical connection board, and wherein the housing comprises at least one position-limiting groove disposed on an inner face of the housing for limiting the position-limiting protrusion of the electrical connection board.

11. The electrical connector assembly of claim 10, wherein the adapter connector further comprises at least one snap-fit block disposed on a housing of the adapter connector, and wherein the housing comprises at least one snap-fit groove disposed on an inner face of the housing to mate with the snap-fit block of the housing.

12. The electrical connector assembly of claim 11, wherein the adapter connector further comprises at least one rib disposed on the housing of the adapter connector to press against the inner surface of the housing.

13. The electrical connector assembly of claim 12 wherein only the contact ring and the plurality of electrical contacts are disposed on the electrical connection plate.

14. The electrical connector assembly of claim 13 wherein the resilient contact portion of each transfer terminal is configured to contact an electrical pad on a circuit board in a device.

15. The electrical connector assembly of claim 8, wherein the body of the mating electrical connector comprises a receiving recess configured to receive the mating end of the electrical connector.

16. The electrical connector assembly of claim 8 wherein the conductive terminals of the mating electrical connector are blade terminals made by a press-molding technique.

17. The electrical connector assembly of claim 8 wherein the resilient contact portion of each conductive terminal of the mating electrical connector extends into the opening of the housing to contact a corresponding one of the contact rings.

18. An electronic device, comprising:

an apparatus, comprising:

a circuit board; and

a plurality of electrical pads disposed on the circuit board; and

an electrical connector removably assembled to the device, the electrical connector comprising:

a mounting end mounted on the device;

a butt end;

a switching connector assembled in the housing and disposed on the back of the electrical connection board, the switching connector including:

a plurality of adapter terminals, each adapter terminal including a tail portion and an elastic contact portion, the tail portion of each adapter terminal being electrically connected to a corresponding one of the contact rings, the elastic contact portion of each adapter terminal facing the mounting opening and being respectively in contact with and electrically connected to the electrical connection pad on the circuit board,