TWM521289U - Adaptor fo electrical connector - Google Patents

Description

Electrical connector adapter

The present invention relates to an adapter device, and more particularly to an adapter device for an electrical connector.

In the information life of modern people, whether it is in response to the needs of work or study, various electronic devices are often used as the editing and playback of digital data. The USB transmission interface is commonly used, and it is convenient to use a computer host, a notebook computer, and a mobile device by plugging in the USB transmission interface. The USB connector is a common connector in the field of electronic devices. It can be used to connect computers and external devices. It is widely used in information communication products such as personal computers and mobile devices, and expands functions to digital TVs (set-top boxes) and photography. Equipment, game consoles and other related fields.

In order to meet the design requirements of miniaturization of mobile devices, the USB interface extends a variety of smaller specifications, such as Mini-USB, Micro-USB, etc. Micro-USB can be divided into Micro-A and Micor-B. In addition to the size, the standard USB interface has four terminals (pins, or pins), while the Mini-USB and Micro-USB have five terminals.

Mobile devices use Micro-USB connectors as communication ports, such as mobile phones or digital cameras. The USB port has a power terminal (or V BUS pin) that can be used to power the device connected to the USB port or to charge an externally connected device.

In addition to the USB interface, some ports have different numbers of terminals. Since the interface is different from the general USB interface, it is necessary to connect to a computer or other electronic device through an adapter. Different electronic devices generally cannot share the same connector, which is quite inconvenient for the user. Therefore, how to solve the problem of the conventional structure is the problem that the relevant industry must consider.

The present invention provides an electrical connector switching device that integrates a plug connector of a USB Type-C connection interface with a micro USB-B type socket electrical connector or a USB 3.0 connection interface socket electrical connector. Users can transfer different electronic devices at the same time and transfer and charge data.

In view of the above problems, the present invention provides an electrical connector switching device, the electrical connector switching device comprises a circuit board, a socket electrical connector, a plug electrical connector and a housing structure. One side of the board includes a first set of contacts and the other side of the board includes a second set of contacts. The socket electrical connector is disposed on one side of the circuit board, and the socket electrical connector comprises a shielding shell, an insulative housing, and a plurality of flat terminals. The shielding shell comprises a receiving slot, the insulative housing is located in the receiving slot, and the insulative housing comprises a base and a tongue. The tongue piece extends from one side of the base, and the plurality of plate terminals are disposed on the base and the tongue piece. Each plate terminal comprises a first contact section and a first welding section, and the first contact section extends on one side of the tongue piece, and the first welding section wears The pedestal is electrically connected to the first set of contacts. The plug electrical connector is disposed on the other side of the circuit board, and the plug electrical connector comprises a shielding shell, an insulating body, a plurality of upper rows of elastic terminals and a plurality of lower rows of elastic terminals, the shielding shell comprises a receiving groove, and the insulating body is located in the receiving slot. The insulating body comprises an upper plate body, a lower plate body and a slot, wherein the slot is located between the upper plate body and the lower plate body, and the plurality of upper elastic terminals are electrically connected to the second group of contacts, and the plurality of upper row elastic terminals comprise plural The elastic signal terminal, at least the upper elastic power terminal and at least the upper elastic ground terminal, and each upper elastic terminal is disposed on the insulating body and located on the lower surface of the upper plate body, and the plurality of lower elastic terminals are electrically connected to the second group The plurality of lower elastic terminals include at least a lower row of elastic signal terminals, at least a lower row of elastic power terminals, and at least a lower row of elastic ground terminals, and each of the lower row of elastic terminals is disposed on the insulating body and located on the upper surface of the lower plate body and Each of the upper rows of elastic terminals corresponds to each other. The outer casing structure covers the circuit board.

In summary, the present invention provides a high-speed transmission transfer function by soldering the socket electrical connector and the plug electrical connector respectively on both sides of the circuit board, and directly electrically connecting the socket electrical connector and the plug with the circuit board. The connector reduces the problem of signal loss caused by the connection of the wired material, thereby improving the effects of electromagnetic interference (EMI) and high-frequency transmission. In addition, the plurality of upper plate terminals and the plurality of lower plate terminals are turned upside down by the socket electrical connector, and the arrangement of the plurality of upper plate type contact terminals is opposite to the arrangement of the plurality of lower plate type contact terminals, and the plug is provided. When the electrical connector is inserted into the socket electrical connector, the terminal of the plug electrical connector can be connected to the plurality of upper flat type contact terminals, and the plug electrical connector is reversely inserted into the socket electrical connector. The terminal of the plug electrical connector can also be connected to a plurality of lower row flat type contact terminals, and the socket electrical connector has the function of not restricting the forward or reverse insertion of the plug electrical connector.

The detailed features and advantages of the present invention are described in detail below in the embodiments, which are sufficient to enable any skilled artisan to understand the technical contents of the present invention and implement it according to the contents, the scope of the patent application and the drawings. Anyone familiar with the relevant art can easily understand the purpose and advantages of this creation.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a first embodiment of the adapter device 100 of the present invention is shown in FIG. 1 , which is a schematic view of the appearance, and FIG. 2 is a schematic view of the appearance of another viewing angle. 3 is a schematic diagram of the decomposition. The switching device 100 of the present invention comprises a circuit board 11, a socket electrical connector 200, a plug electrical connector 300 and a housing structure 51.

Referring again to FIGS. 3 and 5, the circuit board 11 side includes a first set of contacts 111, and the other side of the circuit board 11 includes a second set of contacts 112. The first set of contacts 111 is located on the upper surface 3321 of one side of the circuit board 11. The second set of contacts 112 includes an upper row of contact groups 1121 and a lower row of contact groups 1122. The upper row of contact groups 1121 are located on the upper surface 3321 of the other side of the circuit board 11, and the lower row of contact groups 1122 are located on the circuit board 11. The lower surface 3311 on the other side.

Referring to FIG. 2, FIG. 3 and FIG. 5 again, the socket electrical connector 200 is a micro USB-B type connection interface specification, and the socket electrical connector 200 includes a shielded outer casing 21, an insulative housing 23 and a plurality of flat-plate terminals 25. The adapter device 100 further includes a cover 61 that covers the receptacle electrical connector 200 to provide waterproofing.

The shielding casing 21 is a hollow casing, and the inside of the shielding casing 21 includes a receiving groove 211. The insulative housing 23 is located in the receiving slot 211. The insulative housing 23 includes a base 231 and a tongue 232. The tab 232 extends from the side of the base 231. Here, the susceptor 231 and the tongue piece 232 are formed in an insert-molding manner.

The plurality of flat terminals 25 are formed by a plurality of terminals of a single row, and the plurality of flat terminals 25 are disposed on the base 231 and the tongue 232. The two sides of each of the flat terminals 25 include a first contact segment 251 and a first soldering segment 252, respectively. The segment 251 extends on one side of the tongue 232. The first welding segment 252 passes through the base 231 and is electrically connected to the first set of contacts 111. The first welded segment 252 is bent into a horizontal shape to become an SMT pin. Use (as shown in Figure 5).

Referring to FIG. 3, FIG. 4A, FIG. 4B and FIG. 4C, the plug electrical connector 300 is a USB Type-C connection interface specification, and the plug electrical connector 300 includes a shield case 31, an insulating body 33, and a plurality of upper rows of elasticity. The terminal 351 and the plurality of lower row elastic terminals 352.

The shield case 31 is a hollow case, and the inside of the shield case 31 has a receiving groove 311. In this embodiment, the shield case 31 may be a combination of a one-piece or multi-piece structure.

The insulating body 33 is located in the housing groove 311. The insulating body 33 includes an upper plate body 331, a lower plate body 332, and a slot 333. Here, the upper plate body 331 and the lower plate body 332 are formed by insert-molding. A slot 333 is formed between the upper plate body 331 and the lower plate body 332. Also, the upper plate body 331 has a lower surface 3311, the lower plate body 332 has an upper surface 3321, and the upper surface 3311 of the upper plate body 331 corresponds to the upper surface 3321 of the lower plate body 332.

The plurality of plug terminals 35 are located on the upper plate body 331 and the lower plate body 332, and the plurality of plug terminals 35 include a plurality of upper row elastic terminals 351 and a plurality of lower row elastic terminals 352.

Referring to FIG. 3 , FIG. 4A , FIG. 4B , and FIG. 4C , the plurality of upper elastic terminals 351 are electrically connected to the second set of contacts 112 , and the plurality of upper elastic terminals 351 are disposed on the insulating body 33 and located at The lower surface of the upper plate body 331 is a bottom plate 3311. Here, the plurality of upper rows of elastic terminals 351 include a plurality of upper rows of elastic signal terminals 3511, at least one upper row of elastic power terminals 3512, and at least one upper row of elastic ground terminals 3513, and each upper row of elastics The terminal 351 is disposed on the insulating body 33 and located on the lower surface 3311 of the upper plate body 331. The plurality of upper elastic terminals 351 are sequentially viewed from the right side to the left side as the upper row of elastic ground terminals 3513 (Gnd) and the first pair of upper row elastic signal terminals 3511 (TX1+-), Two pairs of upper row elastic signal terminals 3511 (D+-), a third pair of upper row elastic signal terminals 3511 (RX2+-), and three pairs of upper row elastic signal terminals 3511 between the upper row of elastic power terminals 3512 (Power/VBUS) The reserved terminal (RFU) and the uppermost row of elastic ground terminals 3513 (Gnd).

Referring to FIG. 3, FIG. 4A, FIG. 4B and FIG. 4C, the plurality of upper elastic terminals 351 are disposed on the insulating body 33, and each of the upper row of elastic terminals 351 includes an upper row of contact segments 3514, an upper row of connecting segments 3515, and Upper row welding section 3516. The upper row of connecting segments 3515 is disposed on the upper plate body 331, and the upper row of the connecting segments 3514 extends from the side of the upper row of connecting segments 3515 to be located on the lower surface 3311 of the upper plate body 331. The other side of the row connection section 3515 extends to pass through the insulating body 33. The plurality of upper row of flexible signal terminals 3511 extend through the slot 333 to transmit a set of first signals (ie, USB 3.0 signals), the plurality of upper rows of soldering segments 3516 extend to the rear side of the insulating body 33, and the plurality of upper rows of soldering segments 3516 Formed horizontally (as shown in Figure 3). The upper row of contact groups 1121 are located on the upper surface 3321 of the other side of the circuit board 11 and are electrically connected to the upper row of soldering segments 3516 of the plurality of upper rows of elastic terminals.

Referring to FIG. 3, FIG. 4A, FIG. 4B and FIG. 4C, the plurality of lower row elastic terminals 352 are electrically connected to the second group of contacts 112, and the plurality of lower row of elastic terminals 352 are disposed on the insulating body 33. The upper and lower rows of elastic terminals 352 are at least the lower row of elastic signal terminals 3521 and at least the lower row of elastic power terminals 3522 and at least the lower row of elastic grounding terminals 3523, and the upper rows are elastic. The terminal 352 is disposed on the insulating body 33 and located on the upper surface 3321 of the lower plate body 332. The lower row of elastic terminals 352 are viewed from the front, and the lower row of elastic terminals 352 are sequentially arranged from the left side to the right side as the lower row of elastic ground terminals 3523 (Gnd), and the first pair of lower row of elastic signal terminals 3521 (TX2+-), Two pairs of lower row elastic signal terminals 3521 (D+-), third pair of lower row elastic signal terminals 3521 (RX1+-), and three lower rows of elastic signal terminals 3521 between the lower row of elastic power terminals 3522 (Power/VBUS) The reserved terminal (RFU) and the lowermost row of elastic ground terminals 3523 (Gnd).

Referring to FIG. 3, FIG. 4A, FIG. 4B and FIG. 4C, the plurality of lower row elastic terminals 352 are disposed on the insulating body 33, and one of the plurality of lower row elastic terminals 352 has a plurality of lower rows of elastic-type contact ends 3525. Each of the lower row of resilient terminals 352 includes a lower row of contact segments 3524, a lower row of connecting segments 3525, and a lower row of soldering segments 3526. The lower row of connecting sections 3525 is disposed on the lower plate body 332, and the lower row of the connecting sections 3524 extends from the side of the lower row of connecting sections 3525 to be located on the lower surface 3311 of the lower plate body 332. The other side of the row connection section 3525 extends to penetrate the insulating body 33. The plurality of lower row elastic signal terminals 3521 extend in the slot 333 to transmit a set of second signals (ie, USB3.0 signals), the plurality of lower row soldering segments 3526 extend to the rear side of the insulating body 33, and the plurality of lower row soldering segments 3526 Used for horizontal formation (as shown in Figure 5). The lower row of contact groups 1122 are located on the lower surface 3311 of the other side of the circuit board 11 and are electrically connected to the plurality of lower row soldering sections 3526 of the plurality of lower row of elastic terminals 352.

Please refer to FIG. 3, FIG. 4A, FIG. 4B and FIG. 4C. In this embodiment, the arrangement of the plurality of upper elastic terminals 351 and the plurality of lower elastic terminals 352 can be seen that the plurality of upper elastic terminals 351 and The plurality of lower row elastic terminals 352 are respectively disposed on the lower surface 3311 of the upper plate body 331 and the upper surface 3321 of the lower plate body 332, and the center points of the plurality of upper row elastic terminals 351 and the plurality of lower row elastic terminals 352 to receive the groove 311 are The point of symmetry is point symmetry with respect to each other. The so-called point symmetry refers to a plurality of upper row elastic terminals 351 after the plurality of upper elastic terminals 351 and the plurality of lower row elastic terminals 352 are rotated by 180 degrees according to the center of symmetry as a center of rotation. It is completely coincident with the plurality of lower row elastic terminals 352, that is, the plurality of upper row elastic terminals 351 after rotation are originally arranged at the plurality of lower row elastic terminals 352, and the plurality of lower row elastic terminals 352 after rotation are located in the upper row. The original arrangement position of the elastic terminal 351. In other words, the plurality of upper elastic terminals 351 and the plurality of lower elastic terminals 352 are turned upside down, and the arrangement of the plurality of upper elastic terminals 351 is opposite to the arrangement of the plurality of lower elastic terminals 352. The plug electrical connector 300 is inserted into the interior of the other electrical connector for transmitting a set of first signals, and can also be reversely inserted into the plug electrical connector 300 inside the other electrical connector. For transmitting a set of second signals, and the transmission specification of a group of first signals is a transmission specification conforming to a set of second signals. There is no restriction on the forward or reverse insertion of the plug electrical connector 300 for transmission within the interior of another electrical connector.

Please refer to FIG. 3, FIG. 4A, FIG. 4B and FIG. 4C. In this embodiment, the upper row of elastic terminals 351 and the plurality of lower row of elastic terminals 352 are viewed from the front, and the upper row of elastic terminals 351 are arranged. The position corresponds to the arrangement position of the plurality of lower row elastic terminals 352.

Referring again to FIGS. 2, 3, and 6, the outer casing structure 51 covers the circuit board 11, and the outer casing structure 51 includes a cover member 511 and an insulative housing 512. The cover member 511 covers the circuit board 11, the plurality of first welding segments 252, the plurality of upper row welding segments 3516, and the plurality of lower row welding segments 3526. The insulating case 512 is covered on the cover 511, and the insulating case 512 covers the outside of the socket electrical connector 200 and the plug electrical connector 300. After the socket electrical connector 200 and the plug electrical connector 300 are assembled to the circuit board 11, the overmolding method is combined with a cover member 511 (such as the inner mold shown in FIG. 6) to protect the circuit board 11, Further, a copper foil is coated on the outside of the cover member 511, and then an insulating case 512 (such as the outer mold shown in Fig. 1) is coated.

Please refer to FIG. 7 and FIG. 8 again, which is a second embodiment of the switching device 100 of the electrical connector of the present invention. FIG. 7 is an exploded schematic view, and FIG. 8 is an exploded perspective view of another viewing angle. The biggest difference between the second embodiment and the first embodiment is that the socket electrical connector 200 of the present embodiment is a USB 3.0 connection interface specification. That is, the socket electrical connector 200 further includes a plurality of elastic terminals 26, and the plurality of elastic terminals 26 are formed by a single row of multiple terminals, and the plurality of elastic terminals 26 are combined with the plurality of plate terminals 25 of the socket electrical connector 200 of the first embodiment to form two The multiple terminals of the row. In this embodiment, the plurality of elastic terminals 26 are disposed on the base 231 and the tongue 232. The two sides of each of the elastic terminals 26 respectively include a second contact portion 261 and a second welding portion 262. The second contact portion 261 extends over the tongue 232. One side is arranged on the rear side of the first contact portion 251, and the second welded portion 262 and the first welded portion 252 pass through the base 231 to be connected to the first set of contacts 111.

The circuit board 11 of the present embodiment includes a plurality of through holes 114, and the first set of contacts 111 are located in the plurality of through holes 114 to be welded to the first welded portion 252 and the second welded portion 262. That is, the first weld segment 252 and the second weld segment 262 are bent to extend vertically downward to be used as DIP pins (as shown in FIG. 7).

The present invention provides a high-speed transmission transfer function by soldering the socket electrical connector and the plug electrical connector respectively on both sides of the circuit board, and directly electrically connecting the socket electrical connector and the plug electrical connector with the circuit board, thereby reducing the cause The problem of signal loss is caused by the connection of the wire material, thereby improving the effects of electromagnetic interference (EMI) and high-frequency transmission. In addition, the plurality of upper plate terminals and the plurality of lower plate terminals are turned upside down by the socket electrical connector, and the arrangement of the plurality of upper plate type contact terminals is opposite to the arrangement of the plurality of lower plate type contact terminals, and the plug is provided. When the electrical connector is inserted into the socket electrical connector, the terminal of the plug electrical connector can be connected to the plurality of upper flat type contact terminals, and the plug electrical connector is reversely inserted into the socket electrical connector. The terminal of the plug electrical connector can also be connected to a plurality of lower row flat type contact terminals, and the socket electrical connector has the function of not restricting the forward or reverse insertion of the plug electrical connector.

Through the above detailed description, it can fully demonstrate that the purpose and effect of this creation are both progressive and highly industrial, and it is a new type that has never been seen before in the market, and fully meets the patent requirements. Apply in accordance with the law. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. That is, all the changes and modifications made in accordance with the scope of this patent should belong to the scope of this creation patent. I would like to ask your review committee to give a clear understanding and pray for it. It is the prayer.

100‧‧‧Transfer device
11‧‧‧ boards
11A‧‧‧ first side
11B‧‧‧ second side
111‧‧‧First set of contacts
112‧‧‧Second group of contacts
1121‧‧‧Upper contact group
1122‧‧‧lower contact group
200‧‧‧Socket electrical connector
21‧‧‧Shielded enclosure
211‧‧‧ accommodating slots
23‧‧‧Insulated body
231‧‧‧ pedestal
232‧‧‧ tongue
25‧‧‧Slab terminal
251‧‧‧First contact segment
252‧‧‧First welding section
26‧‧‧Flexible terminal
261‧‧‧second contact section
262‧‧‧Second welding section
300‧‧‧ plug electrical connector
31‧‧‧Shield housing
311‧‧‧ Storage trough
33‧‧‧Insulation body
330‧‧‧Base
3301‧‧‧ buckle groove
331‧‧‧Upper body
3311‧‧‧ lower surface
332‧‧‧ Lower plate
3321‧‧‧ upper surface
333‧‧‧ slots
35‧‧‧ Plug terminal
351‧‧‧Upper elastic terminal
3511‧‧‧Upper row of flexible signal terminals
3512‧‧‧Upper row of elastic power terminals
3513‧‧‧Upper row of elastic grounding terminals
3514‧‧‧Upper contact section
3515‧‧‧Upper connection section
3516‧‧‧Upper welding section
352‧‧‧Lower row of elastic terminals
3521‧‧‧Lower row of flexible signal terminals
3522‧‧‧Lower row of flexible power terminals
3523‧‧‧Lower row of resilient grounding terminals
3524‧‧‧Lower contact section
3525‧‧‧Bottom connection section
3526‧‧‧lower welding section
51‧‧‧Shell structure
511‧‧‧coverings
512‧‧‧Insulated housing
61‧‧‧ Cover

[Fig. 1] A schematic view showing the appearance of a first embodiment of the present invention. [Fig. 2] A schematic view showing the appearance of another perspective of the first embodiment of the present invention. [Fig. 3] An exploded view of the first embodiment of the present invention. [Fig. 4A] A schematic exploded view of the plug electrical connector of the present invention. [Fig. 4B] is a schematic cross-sectional view of the plug electrical connector of the present invention. [Fig. 4C] This is the definition of the terminal pin of the plug connector of this creation. [Fig. 5] A schematic exploded view of another perspective of the first embodiment of the present invention. [Fig. 6] A schematic view of the appearance of the combined cover of the present creation. [Fig. 7] An exploded view of the second embodiment of the present invention. [Fig. 8] An exploded perspective view of another perspective of the second embodiment of the present invention.

11‧‧‧ boards

11A‧‧‧ first side

11B‧‧‧ second side

111‧‧‧First set of contacts

112‧‧‧Second group of contacts

1121‧‧‧Upper contact group

200‧‧‧Socket electrical connector

21‧‧‧Shielded enclosure

23‧‧‧Insulated body

231‧‧‧ pedestal

252‧‧‧First welding section

300‧‧‧ plug electrical connector

31‧‧‧Shield housing

311‧‧‧ Storage trough

330‧‧‧Base

51‧‧‧Shell structure

511‧‧‧coverings

512‧‧‧Insulated housing

61‧‧‧ Cover

Claims (10)

An electrical connector switching device includes: a circuit board having a first set of contacts on one side and a second set of contacts on the other side; and a socket electrical connector disposed on one side of the circuit board The socket electrical connector includes: a shielding housing including a receiving slot; an insulative housing located in the receiving slot, the insulative housing includes a base and a tongue extending from a side of the base And a plurality of plate terminals disposed on the base and the tongue, each of the plate terminals including a first contact segment and a first welding segment, the first contact segment extending on one side of the tongue, the first welding The segment is electrically connected to the first set of contacts; a plug electrical connector is disposed on the other side of the circuit board, the plug electrical connector comprises: a shielded housing, including a receiving slot An insulating body is located in the receiving slot, the insulating body comprises an upper plate body, a lower plate body and a slot, the slot is located between the upper plate body and the lower plate body; a plurality of upper elastic terminals, electric Sexually connected to the second set of contacts, the upper row of elastic terminals comprising a complex The upper row of elastic signal terminals, the at least one upper row of elastic power terminals and the at least one upper row of elastic grounding terminals, and each of the upper row of elastic terminals is disposed on the insulating body and located on the lower surface of the upper plate body; and the plurality of lower row of elastic terminals Electrically connected to the second set of contacts, the lower row of elastic terminals includes a plurality of lower rows of elastic signal terminals, at least a lower row of elastic power terminals, and at least a lower row of elastic ground terminals, and each of the lower row of elastic terminals is disposed on the The insulating body is located on the upper surface of the lower plate body and corresponds to each of the upper rows of elastic terminals; and A housing structure covering the circuit board. The electrical connector switching device of claim 1, wherein each of the upper row of elastic terminals comprises an upper row of contact segments, an upper row of connecting segments and an upper row of soldering segments, the upper row of connecting segments being disposed thereon a plate body, the upper row of contact segments extending from a side of the upper row of connecting segments and located at a lower surface of the upper plate body, the upper row of welded segments extending from the other side of the upper row of connecting segments to pass through the insulating body. The electrical connector switching device of claim 1, wherein each of the lower row of elastic terminals comprises a lower row of contact segments, a lower row of connecting segments and a lower row of soldering segments, the lower row of connecting segments being disposed on the lower plate body, The lower row of contact segments extends from one side of the lower row of connecting segments to the upper surface of the lower plate body, and the lower row of welded segments extends from the other side of the lower row of connecting segments to pass through the insulating body. The electrical connector switching device of any one of claims 1 to 3, wherein the upper row of elastic signal terminals are located on a lower surface of the upper plate body to transmit a set of first signals, and the lower row of elastic signals The terminal is located on the upper surface of the lower board and transmits a set of second signals. The transmission specifications of the first signal of the group are in accordance with the transmission specifications of the second signal of the group, and the upper row of elastic terminals and the lower row of elastic terminals are The center point of the accommodating groove is a symmetrical center and is point symmetrical to each other. The electrical connector switching device of claim 4, wherein the arrangement positions of the upper rows of elastic terminals correspond to the arrangement positions of the lower rows of elastic terminals. The adapter device of the electrical connector of claim 1, wherein the socket electrical connector further comprises a plurality of elastic terminals disposed on the base and the tongue, each of the elastic terminals comprising a second contact segment and a first And a second soldering section extending on one side of the tab and arranged on a rear side of the first contact section, the second soldering section passing through the base and connected to the first set of contacts. The electrical connector switching device of claim 1, wherein the second set of contacts comprises an upper row of contact groups and a lower row of contact groups, the upper row of contact groups being located on the other side of the circuit board The upper surface is electrically connected to the upper row of elastic terminals, and the lower row of contact groups are located on the lower surface of the other side of the circuit board to be electrically connected to the lower rows of elastic terminals. The adapter of the electrical connector of claim 1, further comprising a cover covering the receptacle electrical connector. The electrical connector adapter of claim 1, wherein the housing structure includes a cover covering the circuit board. The electrical connector adapter of claim 9, wherein the housing structure comprises an insulative housing encasing the cover.