CN203553401U - USB interface and plug - Google Patents

Abstract

The utility model discloses a USB interface and a USB plug, comprising a USB interface body, the USB interface body has a current pin, and the USB interface body includes a VBUS pin terminal and a GND pin terminal, both of which are VBUS pin terminals and GND pin terminals. It is set in the shape of "I", and also includes a USB plug body with 7PIN contact terminals on the USB plug body. The utility model changes the structure of the USB interface so that it can be charged with a large current and a standard current, and the charging speed is improved.

Description

A USB interface and plug

technical field

  The utility model relates to a USB interface structure.

Background technique

At present, the display screens of smart terminals such as smartphones and tablet computers are becoming larger and larger, with more and more powerful functions and higher processing speeds. These changes in smart terminals are accompanied by increasing power consumption. bigger. In order to ensure the endurance of the battery, the capacity of the battery is also becoming larger and larger. With the increase of the battery capacity, the charging time is bound to increase. Current smartphones are mainly charged through the USB interface. The current carried by the physical link between Vbux and GND ground of the traditional USB interface is designed according to the industry standard of the USB interface, and the nominal current carried by it is 500mA. Due to the need to complete the charging of the battery more quickly, the current that exceeds the capacity of the traditional USB interface is used for charging. At present, DC charging stand is usually used to solve the problem of high current charging, which will increase the cost, and because the DC charging stand is non-standard, a special DC interface charger is required, which increases the cost of the product and poor user experience. the

Contents of the invention

The technical problem to be solved by the utility model is to provide a USB interface capable of charging with large current and standard current and a matching USB plug.

In order to solve the above technical problems, on the one hand, the utility model provides a USB interface, including a USB interface body, the USB interface body has a current pin, and the USB interface body includes a VBUS pin terminal and a GND pin terminal, Both the VBUS pin terminal and the GND pin terminal are set in the shape of "I".

The body of the USB interface is T-shaped.

The VBUS pin terminal includes a VBUS I contact end and a VBUS II contact end, and the GND pin terminal includes a GND I contact end and a GND II contact end.

On the other hand, the utility model provides a USB plug, including a USB plug body, the USB plug body has a 7PIN contact terminal, and the USB plug body can be mated with the USB interface.

The utility model changes the structure of the USB interface, on the basis of being compatible with the standard interface, it can realize high-current charging, and at the same time can meet the standard current charging, and can realize fast charging and the matching USB plug can be used in an ordinary USB socket. On, charge with nominal current to prevent damage to the device due to excessive current charging.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model USB interface;

Accompanying drawing 2 is the structure diagram of the USB plug of 5PIN in the prior art;

Accompanying drawing 3 is the structural representation of the utility model USB plug.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the accompanying drawings.

As shown in accompanying drawing 1, the utility model discloses a kind of USB interface, comprises USB interface body, has current pin 1 on this USB interface body, and described USB interface body includes VBUS foot terminal 2 and GND foot terminal 3, VBUS Both the pin terminal 2 and the GND pin terminal are set in the shape of "I". The VBUS pin terminal 2 includes a VBUS I contact end 21 and a VBUS II contact end 22 , and the GND pin terminal 3 includes a GND I contact end 31 and a GND II contact end 32 . Since the VBUS pin terminal is in the shape of "I", there is a height difference between the VBUS I contact end and the VBUS II contact end, forming a stepped surface. Similarly, the GND pin terminal is in the shape of "I", so that the GND I contact end and the GND II contact end also have a height difference, forming a stepped surface. The internal structure of the USB interface is T-shaped. This USB interface can be compatible with high-current USB plugs and ordinary 5PIN USB plugs. As shown in Figure 2, it is a common 5PIN USB plug in the prior art. When the common 5PIN USB plug is plugged into this USB interface, the contact area is the contact terminal 42, and the contact terminal 41 will not contact the USB interface. contact end contact. That is, it only contacts with the VBUS I contact terminal 21 of the USB interface to realize the charging of the nominal current. When plugged with a high-current plug, it will be in contact with the VBUS I contact end 21 and the VBUS II contact end 22 of the USB interface at the same time to realize high-current charging.

On the other hand, the utility model provides a USB plug, as shown in Figure 3, the USB plug is matched with the above-mentioned USB interface, and includes a USB plug body 5, which has a 7PIN contact terminal. The 7PIN contact terminals include a contact terminal 61 , a contact terminal 62 , a contact terminal 71 and a contact terminal 72 . When the USB plug is plugged into the USB interface, the contact terminal 61 and the contact terminal 62 of the USB plug body 5 are in contact with the GNDI contact end 31 and the GNDII contact end 32 of the USB interface respectively, and the contact terminal 71 of the USB plug body 5 The contact terminal 72 is in contact with the VBUS I contact end 21 and the VBUS II contact end 22 of the USB interface to realize high current charging. When the USB plug disclosed by the utility model is in contact with the common 5PIN USB interface, the contact terminal 62 and the contact terminal 72 of the USB plug body 5 do not participate in the contact, and normal current charging is realized.

The USB interface disclosed by the utility model, when using a standard USB plug, the plug terminal is only in contact with the VBUS I contact end and the GND I contact end, and the charging current is derived through the corresponding pins; when using a high-current USB plug (7PIN plug), The plug terminal is in contact with the VBUSⅠ contact terminal, the VBUSⅡ contact terminal, the GNDⅠ contact terminal and the GNDⅡ contact terminal, the charging current is derived through the corresponding pins, and the large and small current charging scheme is realized structurally.

In addition, the disclosed USB plug realizes structural compatibility between common USB plugs and high-current plugs, which is convenient for users to use.

Claims (4)

1. a USB interface, comprises USB interface body, on this USB interface body, has electric current pin, it is characterized in that, described USB interface body comprises VBUS foot and GND foot, and VBUS foot and GND foot are all made as " work " font.

2. USB interface according to claim 1, is characterized in that, USB interface body is T-shaped.

3. USB interface according to claim 2, is characterized in that, described VBUS foot attached bag is drawn together VBUS I contact jaw and VBUS II contact jaw, and GND foot attached bag is drawn together GND I contact jaw and GND II contact jaw.

4. the USB plug matching with USB interface described in claim 1 or 2 or 3, it is characterized in that, comprise USB plug body, on this USB plug body, there is 7PIN contact terminal, and this USB plug body can coordinate and contact with described USB interface.

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