CN218549017U

CN218549017U - Switchable USB circuit

Info

Publication number: CN218549017U
Application number: CN202222866287.9U
Authority: CN
Inventors: 吴振龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-02-28
Anticipated expiration: 2032-10-29

Abstract

The utility model belongs to the technical field of the data line, especially, switchable USB circuit, including the public communication line who is used for transmitting audio signal, first communication branch circuit and second communication branch circuit, wherein, public communication line one end is equipped with input interface, the other end is equipped with the communication select switch, input interface is the USB interface, the communication select switch is connected to the one end electricity of first communication branch circuit and second communication branch circuit, the other end is equipped with first output interface and second output interface respectively, first output interface and second output interface can be used for connecting different audio playback devices respectively, through operation communication select switch, can let public communication line and first communication branch circuit switch-on, also can let public communication line and second communication branch circuit switch-on, thereby input interface's audio signal can transmit first output interface, also can transmit second output interface, the convenience is switched over audio signal and is exported different playback devices.

Description

Switchable USB circuit

Technical Field

The utility model belongs to the technical field of the data line, concretely relates to switchable formula USB circuit.

Background

Many electronic equipment adopt the data line transmission audio frequency of USB interface on the current market, for example some earphones that are furnished with the USB interface or USB stereo set can use the USB interface data line, the USB data line that has been used for transmitting audio frequency now only is equipped with an input interface and an output interface, such a circuit can only provide audio signal for an equipment, it is inconvenient to use, if, when a computer machine case need connect audio amplifier and earphone switch use, need pull out one and then insert another again, it is more loaded down with trivial details.

In the prior art, chinese patent document No. CN205583328U describes a data line based on a Micro USB interface, which includes a button switch, a Micro USB charging head, a four-core data cable, and a USB power taking head, wherein V, D, and G terminals in the USB power taking head are directly connected to V, D, and G terminals in the Micro USB charging head through the four-core data cable, one data cable of the four-core data cable is connected to the button switch, one side of the data cable connected to the button switch is connected to D + of the USB power taking head, the other side of the data cable connected to the button switch is connected to D + of the Micro USB charging head, and the data line can avoid the risk of data leakage when mobile devices such as a mobile phone or a tablet are connected to a computer for charging.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a changeable formula USB circuit, the USB data line of transmission audio signal among the solution prior art can only connect an audio playback equipment, leads to using inconvenient technical problem.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the switchable USB line comprises a public communication line, a first communication branch line and a second communication branch line, wherein the public communication line is used for transmitting audio signals, one end of the public communication line is provided with an input interface, the other end of the public communication line is provided with a communication selection switch, and the input interface is a USB interface; one end of the first communication branch line is electrically connected to the communication selection switch, the other end of the first communication branch line is provided with a first output interface, one end of the second communication branch line is electrically connected to the communication selection switch, and the other end of the second communication branch line is provided with a second output interface.

Preferably, the input interface is specifically a type-a USB interface.

Preferably, the first output interface and the second output interface are both sockets corresponding to a type-a USB interface.

Preferably, the first output interface and the second output interface are both sockets corresponding to the TRS terminal.

Preferably, the first output interface and the second output interface are both TRS terminals.

Preferably, the public communication line, the first communication branch line and the second communication branch line each include four core wires, which are a power supply positive core wire, a negative voltage data core wire and a positive voltage data core wire, respectively.

Preferably, the communication selection switch comprises a housing, a fixed plate and a toggle plate are arranged in the housing, four first contacts are arranged in the middle of the lower surface of the toggle plate, four second contacts and four third contacts are respectively arranged on two sides of the lower surface of the toggle plate, the four first contacts are respectively electrically connected with the four second contacts, and the four first contacts are respectively electrically connected with the four third contacts; four core wires of the public communication line are electrically connected with the four first contacts respectively; four core wires of the first communication branch circuit are electrically connected with the four fifth contacts respectively, and four core wires of the second communication branch circuit are electrically connected with the four sixth contacts respectively; the upper side of the shell is provided with a through hole, and a toggle key connected to the toggle plate is arranged in the through hole.

Preferably, the contact surfaces of the second contact and the third contact are inclined surfaces facing inwards, and the contact surfaces of the fifth contact and the sixth contact are inclined surfaces facing outwards.

Compared with the prior art, the beneficial effects of the utility model are that: the switchable USB line comprises a public communication line for transmitting audio signals, a first communication branch line and a second communication branch line, wherein one end of the public communication line is provided with an input interface, the other end of the public communication line is provided with a communication selection switch, the input interface is a USB interface, one end of each of the first communication branch line and the second communication branch line is electrically connected with the communication selection switch, the other end of each of the first communication branch line and the second communication branch line is respectively provided with a first output interface and a second output interface, the first output interface and the second output interface can be respectively used for connecting different audio playing devices such as earphones and sound equipment, the public communication line can be connected with the first communication branch line and the public communication branch line can be connected with the second communication branch line by operating the communication selection switch, so that the audio signals of the input interface can be transmitted to the first output interface and the second output interface, the audio signals can be conveniently switched and output to different playing devices, and frequent plugging and unplugging operations are omitted.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of an internal structure of a communication selection switch according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the switchable USB circuit according to an embodiment of the present invention, in which the common communication line is electrically connected to the toggle plate of the communication selection switch.

Fig. 4 is a schematic structural diagram of the switchable USB circuit according to an embodiment of the present invention, in which the first communication branch line and the second communication branch line are electrically connected to the fixing plate of the communication selection switch.

In the drawings, each reference numeral means: the communication device comprises a public communication line 1, a first communication branch line 2, a second communication branch line 3, an input interface 4, a communication selection switch 5, a shell 51, a through hole 511, a fixed plate 52, a fifth contact 521, a sixth contact 522, a toggle plate 53, a first contact 531, a second contact 532, a third contact 533, a toggle key 54, a first output interface 6 and a second output interface 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In one embodiment, there is provided a switchable USB line, as shown in fig. 1, which includes a common communication line 1, a first communication branch line 2, and a second communication branch line 3, and the common communication line 1, the first communication branch line 2, and the second communication branch line 3 can all be used to transmit audio signals.

As shown in fig. 1, one end of the common communication line 1 is provided with an input interface 4, the other end is provided with a communication selection switch 5, one end of the first communication branch line 2 is electrically connected to the communication selection switch 5, the other end is provided with a first output interface 6, one end of the second communication branch line 3 is electrically connected to the communication selection switch 5, the other end is provided with a second output interface 7, under the control of the communication selection switch 5, the common communication line 1 can be connected to the first communication branch line 2, and the common communication line 1 can be connected to the second communication branch line 3, so that the audio signal of the input interface 4 can be transmitted to the first output interface 6 and also to the second output interface 7.

The input interface 4 is a type-a USB interface, and can be plugged into an electronic device such as a desktop or notebook computer to output an audio signal.

Furthermore, the first output interface 6 and the second output interface 7 are both sockets corresponding to a type-a USB interface, and an audio playing device such as an earphone or a sound box can be connected to the first output interface 6 or the second output interface 7 through the type-a USB interface.

In one embodiment, the first output interface and the second output interface are both sockets corresponding to the TRS terminal, and an audio playing device such as an earphone or a sound can be connected to the first output interface or the second output interface through the TRS terminal.

In one embodiment, the first output interface and the second output interface are both 3.5mm TRS terminals, and an audio playing device such as an earphone or a sound box can be connected to the first output interface or the second output interface through an interface corresponding to the 3.5mm TRS terminal.

Further, the public communication line 1, the first communication branch line 2 and the second communication branch line 3 all include four core lines, the four core lines are respectively a power supply positive core line, a negative voltage data core line and a positive voltage data core line, the power supply positive core line and the power supply positive core line are power supply lines, and the negative voltage data core line and the positive voltage data core line transmit audio data.

Further, as shown in fig. 2, the communication selection switch 5 includes a housing 51, the housing 51 is formed by fastening an upper portion and a lower portion together, a fixed plate 52 and a toggle plate 53 are disposed in the housing 51, the fixed plate 52 is disposed at a lower side, the toggle plate 53 is disposed at an upper side, as shown in fig. 3, four first contacts 531 are disposed in the middle of a lower surface of the toggle plate 53, and four core wires of the public communication line 1 are electrically connected to the four first contacts 531, respectively; the two sides of the lower surface of the movable plate 53 are respectively provided with four second contacts 532 and four third contacts 533, the four first contacts 531 are respectively electrically connected to the four second contacts 532 through wires arranged on the bottom surface of the movable plate 53, and the four first contacts 531 are respectively electrically connected to the four third contacts 533 through wires arranged on the bottom surface of the movable plate 53.

As shown in fig. 4, four fifth contacts 521 and four sixth contacts 522 are respectively provided on both sides of the upper surface of the fixed plate 52, wherein four cores of the first communication branch line 2 are electrically connected to the four fifth contacts 521, respectively, and four cores of the second communication branch line 3 are electrically connected to the four sixth contacts 522, respectively.

As shown in fig. 2, the upper side of the housing 51 is provided with a through hole 511, a toggle key 54 connected to the toggle plate 53 is provided in the through hole 511, and when the toggle plate 53 is toggled to the left by the toggle key 54, the second contact 532 and the fifth contact 521 are contacted, and the common communication line 1 is connected to the first communication branch line 2; when the dial plate 53 is dialed to the right by the dial key 54, the third contact 533 and the sixth contact 522 come into contact, and the common communication line 1 is connected to the second communication branch line 3.

As shown in fig. 2, the contact surfaces of the second contact 532 and the third contact 533 are inclined inward, and the contact surfaces of the fifth contact 521 and the sixth contact 522 are inclined outward, so that when the toggle key 54 is pushed to toggle the toggle plate 53 left and right, the second contact 532 and the fifth contact 521, or the third contact 533 and the sixth contact 522 can be smoothly contacted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A switchable USB line, comprising: the audio signal transmission device comprises a public communication line, a first communication branch line and a second communication branch line, wherein the public communication line is used for transmitting audio signals, one end of the public communication line is provided with an input interface, the other end of the public communication line is provided with a communication selection switch, and the input interface is a USB interface; one end of the first communication branch line is electrically connected to the communication selection switch, the other end of the first communication branch line is provided with a first output interface, one end of the second communication branch line is electrically connected to the communication selection switch, and the other end of the second communication branch line is provided with a second output interface.

2. The switchable USB link of claim 1, wherein: the input interface is specifically a type-a USB interface.

3. The switchable USB link of claim 1, wherein: the first output interface and the second output interface are both sockets corresponding to the type-a USB interface.

4. The switchable USB link of claim 1, wherein: and the first output interface and the second output interface are both sockets corresponding to the TRS terminal.

5. The switchable USB link of claim 1, wherein: the first output interface and the second output interface are TRS terminals.

6. The switchable USB link of claim 1, wherein: the public communication line, the first communication branch line and the second communication branch line respectively comprise four core wires, and the four core wires are respectively a power supply positive electrode core wire, a negative voltage data core wire and a positive voltage data core wire.

7. The switchable USB link of claim 1, wherein: the communication selection switch comprises a shell, a fixed plate and a toggle plate are arranged in the shell, four first contacts are arranged in the middle of the lower surface of the toggle plate, four second contacts and four third contacts are respectively arranged on two sides of the lower surface, the four first contacts are respectively electrically connected with the four second contacts, and the four first contacts are respectively electrically connected with the four third contacts; four core wires of the public communication line are electrically connected with the four first contacts respectively; four core wires of the first communication branch circuit are electrically connected with the four fifth contacts respectively, and four core wires of the second communication branch circuit are electrically connected with the four sixth contacts respectively; the upper side of the shell is provided with a through hole, and a toggle key connected to the toggle plate is arranged in the through hole.

8. The switchable USB link of claim 7, wherein: the contact surfaces of the second contact and the third contact are inward inclined surfaces, and the contact surfaces of the fifth contact and the sixth contact are outward inclined surfaces.