CN103138071A - Universal serial bus (USB) interface socket - Google Patents
Universal serial bus (USB) interface socket Download PDFInfo
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- CN103138071A CN103138071A CN2011103969437A CN201110396943A CN103138071A CN 103138071 A CN103138071 A CN 103138071A CN 2011103969437 A CN2011103969437 A CN 2011103969437A CN 201110396943 A CN201110396943 A CN 201110396943A CN 103138071 A CN103138071 A CN 103138071A
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Abstract
The invention relates to a universal serial bus (USB) interface socket. The USB interface socket comprises an outer shell, first group pins and second group pins, wherein the first group pins and the second group pins are arranged in the outer shell, the first group pins are arranged on an inserting mouth of the USB interface socket, the first group pins comprise a first power supply pin, a first positive data pin, a first negative data pin and a first grounding pin, the second group pins are arranged along the inserting direction of the USB interface socket and are further away from the inserting mouth of the USB interface socket compared with the first group pins, and the second group pins comprise a second power supply pin and a second grounding pin.
Description
Technical field
The present invention relates to the USB interface field, more specifically, the present invention relates to a kind of usb socket that allows large electric current to pass through.
Background technology
As the data communication standard of the peripheral bus of being developed by Intel and Microsoft, USB (USB) supports the characteristic of hot plug and plug and play to be used widely owing to having.When equipment inserted usb socket, main frame was enumerated (enumerate) this equipment and is loaded required driver, and it is convenient therefore to use more than PCI and isa bus.It has changed the situation that too much connector and port are installed on desk-top or laptop computer.USB provides single connecting interface to keyboard, mouse, printer, modulator-demodulator, joystick, audio frequency apparatus, CD-ROM, digital camera and other equipment, rather than they are connected respectively.USB has eliminated a lot of problems relevant with PC, adapter could be installed, change the dual-in-line switch, configure IRQ (interrupt requests) etc. such as taking computer apart.
In present laptop computer, provide for the DC power supply input port of giving computer power supply and some data-interfaces (such as, USB interface, VGA interface, HDMI interface etc.).Due to the existence of mass data interface, restricted the frivolous characteristic of laptop computer.Therefore, there have been the means that reduce the number of port by the multiplexing mode of USB interface.That is to say, when needs charge to computer, come to computer charging from the outside via power supply adaptor by USB interface, and can take off power supply adaptor after charging, this USB interface can be used for again realizing the data communication with USB device.Yet, due to present standard USB interface allow maximum by electric current less than 2A, therefore when the power of computer is higher, this charging modes that passes through USB interface is just inapplicable.In addition, due to the plug of power supply adaptor and the normal structure of USB interface plug, can cause power supply adaptor to misplug the problem of other usb socket, if the voltage of this adapter higher than 5V, can damage the circuit of main frame.In addition, that the power supply adaptor of computer has according to power is multiple (such as, 30W, 45W, 65W, 90W etc.), lack at present the identifying schemes for the power supply adaptor kind, be unfavorable for the precision management of power supply.
Therefore, be desirable to provide a kind of usb socket, it can allow larger electric current to pass through, and to be embodied as computer charging and favourable multiplexing with the USB device data communication, realizes in addition preventing that the power supply adaptor error is to the identification of other usb socket and power supply adaptor kind.
Summary of the invention
Because above-mentioned situation the invention provides a kind of usb socket.
according to the embodiment of the present invention, a kind of usb socket is provided, comprise shell and be arranged in first group of pin and second group of pin in shell, described first group of pin arrangement is at the insert port place of described usb socket, and described the first pin comprises the first power pins, the first correction data pin, the first negative data pin and the first grounding pin, and described second group of pin is arranged in than the insert port of described first group of pin further from described usb socket along the direction of insertion of described usb socket, and described second group of pin comprises second source pin and the second grounding pin.
In addition, according to the usb socket of the embodiment of the present invention, wherein said the first power pins allows the first electric current to pass through, and described second source pin allows the second electric current to pass through, and described the second electric current is greater than described the first electric current.
In addition, usb socket according to the embodiment of the present invention, wherein be connected in series one first diode between described the first power pins or described second source pin and a usb host equipment, the anodic bonding of described the first diode is to the power line of described usb host equipment, and the negative electrode of described the first diode is connected to described the first power pins or described second source pin.
In addition, usb socket according to the embodiment of the present invention, wherein be connected in series one second diode between described the first power pins or described second source pin and a power supply, the anodic bonding of described the second diode is to described the first power pins or described second source pin, and the negative electrode of described the second diode is connected to the current output terminal of described power supply.
In addition, according to the usb socket of the embodiment of the present invention, wherein said first group of pin do not contact with described second group of pin.
In addition, according to the usb socket of the embodiment of the present invention, wherein said second group of pin also comprises a connection device identification pin, is used for the equipment that identification is connected with described usb socket.
In addition, according to the usb socket of the embodiment of the present invention, every pin in wherein said second group of pin is flexible (POGO) pin.
In addition, usb socket according to the embodiment of the present invention, the USB interface plug that wherein inserts described usb socket has and the contact of described flexible pin coupling and the guide hole that is used for surrounding described flexible pin, when described USB interface plug inserted described usb socket, described contact contacted with every pin face in described second group of pin.
In addition, according to the usb socket of the embodiment of the present invention, wherein when a USB interface plug inserts described usb socket, another USB interface plug can also insert described USB interface plug with in order to be connected with described usb socket.
In addition, according to the usb socket of the embodiment of the present invention, wherein said the first correction data pin be connected the first negative data pin and also be used for the equipment that identification is connected with described usb socket.
In addition, according to the usb socket of the embodiment of the present invention, wherein said first group of pin is the pin that meets one of A type USB, Type B USB, mini A type USB and mini Type B USB standard.
Usb socket according to the embodiment of the present invention, it can allow larger electric current to pass through, to be embodied as computer charging and favourable multiplexing with the USB device data communication, realize in addition preventing that the power supply adaptor error is to the identification of other usb socket and power supply adaptor kind.
The general description and the following detailed description that it being understood that the front are both exemplary, and the further illustrating of the intention technology that is to provide claimed.
Description of drawings
Fig. 1 meets the schematic diagram of the usb socket of USB standard A and USB standard B in the diagram prior art;
Fig. 2 is that diagram is according to the perspective view of the usb socket of the embodiment of the present invention and corresponding USB interface plug thereof;
Fig. 3 is that diagram is according to the schematic appearance for the usb socket that prevents from mispluging and corresponding USB interface plug thereof of the embodiment of the present invention;
Fig. 4 is that the diagram application is according to the schematic circuit of the mainboard of the usb socket of the embodiment of the present invention;
Fig. 5 is that the diagram application is according to another schematic circuit of the mainboard of the usb socket of the embodiment of the present invention; And
Fig. 6 and Fig. 7 are respectively the schematic diagrames that diagram is used in laptop computer according to the usb socket of the embodiment of the present invention.
Embodiment
Below, describe the preferred embodiments of the present invention in detail with reference to accompanying drawing.
At first, with reference to Fig. 1, usb socket of the prior art is described.Fig. 1 meets the schematic diagram of the usb socket of USB standard A and USB standard B in the diagram prior art.
As shown in Figure 1, the usb socket that meets USB standard A and USB standard B in prior art comprises four pins 1 to 4.In the usb socket of USB standard A shown in Figure 1 and USB standard B, pin 1 and pin 4 are used for providing power supply, and wherein pin 1 is connected to supply voltage VBUS (4.75V-5.25V), pin 4 ground connection.In addition, pin 2 and pin 3 are used for transfer of data, and wherein pin 2 is negative data pin Data-, and pin 3 is correction data pin Data+.According to existing USB standard A and USB standard B, above-mentioned usb socket only allows join domain in the adaptor voltages of 4.75V-5.25V usually, correspondingly allows maximum overcurrent less than 2A.Therefore, when the USB device power demand is higher, existing USB interface will be no longer applicable.
In order to address the above problem, the invention provides a kind of improved usb socket and corresponding USB interface plug thereof, be described in detail referring to Fig. 2.
Fig. 2 is that diagram is according to the perspective view of the usb socket of the embodiment of the present invention and corresponding USB interface plug thereof.As shown in Fig. 2 (A), comparing difference with the usb socket of prior art according to the usb socket of the embodiment of the present invention is (to that is to say to 4 except first group of traditional pin 1, the first power pins 1, the first negative data pin 2, the first correction data pin 3 and the first grounding pin 4) outside, also comprise second group of pin 5 to 7.Described first group of pin arrangement is at the insert port place of described usb socket, extend (preferably by the standard USB interface socket with prior art in addition, extend approximately 6mm), arranging described second group pin 5 to 7 than described first group of pin further from the insert port place of described usb socket along the direction of insertion of described usb socket.Wherein, pin 5 to 7 is respectively second source pin 5, the second grounding pin 7 and identifies pin 6 for detection of the connection device of the USB device type that connects.
In a preferred embodiment of the invention, the second source pin 5 maximum overcurrent that allows to pass through allows the maximum overcurrent passed through greater than the first power pins 1.For example, second source pin 5 allows to be connected to the supply voltage of 20V, thereby allows the overcurrent of the maximum of 8A to pass through.
In addition, in a preferred embodiment of the invention, every pin in described second group of pin is flexible (POGO) pin, and described first group of pin do not contact with described second group of pin.For example, as one of ordinary skill will readily understand, the POGO pin that described second group of pin adopts can bear large electric current, and the POGO pin has also that volume is little in addition, the contact is strong, the good characteristic of stable performance.In addition, in a preferred embodiment of the invention, as shown in Fig. 2 (A), it is long that the POGO pin preferably is about 4.5mm, because it is being arranged than the insert port place of described first group of pin further from described usb socket along the direction of insertion of described usb socket, the problem that is short-circuited so contact with it after can avoiding the standard USB interface plug to insert.This is because when the standard USB interface plug as shown in Fig. 2 (B) inserts this usb socket, the insertable length of standard USB interface plug is 10mm, and this standard USB interface plug does not contact with described second group of pin under being arranged in described first group of pin.Preferably, also has the distance of 1.5mm after the standard USB interface plug inserts with described second group of pin.
Fig. 2 (C) shows and the corresponding USB interface plug of the usb socket according to the embodiment of the present invention shown in Fig. 2 (A).As shown in Fig. 2 (C), be similar to the usb socket according to the embodiment of the present invention, extend (preferably, extending approximately 6mm) in its end equally on the basis of standard USB interface plug according to the USB interface plug of the embodiment of the present invention.In addition, except the contact of standard USB interface plug, arrange in this prolongation and the contact and the POGO pin guide hole that are complementary according to the POGO pin in the usb socket of the embodiment of the present invention according to the USB interface plug of the embodiment of the present invention.In a preferred embodiment, except with usb socket in the POGO pin contact that is complementary be metal material, all the other materials are preferably nonconducting plastics.Under like this configuration, when described USB interface plug inserted described usb socket, described contact contacted with every pin face in described second group of pin, can not make again the POGO pin be short-circuited, thereby can transmit safely the electric current of 8A.In addition, the broken end of the described USB interface plug of described contact distance has a safe distance (preferably, be about 3mm), so can avoid the user to touch because of carelessness the safety problem that bring the contact in using, also can avoid producing harmful electric spark when inserting described usb socket.
In addition, in a preferred embodiment of the invention, described connection device identification pin 6 is for detection of the type of the USB device of inserting.Certainly, those of ordinary skill in the art easily understands, and the invention is not restricted to this.Described the first negative data pin 2 be connected the first correction data pin 3 also can the user equipment that is connected with described usb socket of identification.
In addition, in a preferred embodiment of the invention, can arrange the connection pin of cascade on according to the USB interface plug of the embodiment of the present invention.Thereby when the USB interface plug inserted described usb socket, another USB interface plug can also insert described USB interface plug with in order to be connected with described usb socket.
Abovely describe in detail according to the usb socket of the embodiment of the present invention and corresponding USB interface plug thereof with reference to Fig. 2.In the situation that use is according to usb socket and the corresponding USB interface plug thereof of the embodiment of the present invention, in order to prevent that USB interface plug according to the embodiment of the present invention from mispluging the usb socket into standard, can be according to the outward appearance redesign of usb socket and the corresponding USB interface plug thereof of the embodiment of the present invention.
Fig. 3 is that diagram is according to the schematic appearance for the usb socket that prevents from mispluging and corresponding USB interface plug thereof of the embodiment of the present invention.as shown in Figure 3, be used for preventing according to the embodiment of the present invention usb socket that misplugs, compare with the standard USB interface socket, make a wedge shape space on the left side or the right according to the embodiment of the present invention according to the embodiment of the present invention, and correspondingly make it to be complementary with usb socket according to the embodiment of the present invention making same wedge shape space according to the correspondence position of the USB interface plug of the embodiment of the present invention, thereby prevent that USB interface plug according to the embodiment of the present invention from mispluging the usb socket into standard, perhaps the USB interface plug of standard inserts the usb socket according to the embodiment of the present invention.
Because usb socket according to the present invention allows to pass through as the large electric current of 8A, in order to prevent that large electric current from pouring into the USB circuit and preventing battery or main power source flows back on the USB power supply, the present invention transforms according to the circuit on the mainboard of usb socket of the present invention using.Below, be described in detail with reference to Fig. 4 and Fig. 5.
Fig. 4 is that the diagram application is according to the schematic circuit of the mainboard of the usb socket of the embodiment of the present invention.Fig. 5 is that the diagram application is according to another schematic circuit of the mainboard of the usb socket of the embodiment of the present invention.In order to simplify, Fig. 4 and Fig. 5 only schematically show usb host equipment, battery supply, USB interface pin and connected power supply adaptor or the USB device on mainboard, and other circuit or equipment are also not shown in Fig. 4 and Fig. 5.
As shown in Figure 4, be connected in series one first diode between described the first power pins or described second source pin and a usb host equipment, the anodic bonding of described the first diode is to the power line of described usb host equipment, and the negative electrode of described the first diode is connected to described the first power pins or described second source pin.Described the first diode prevents that large electric current from pouring into the circuit of usb host equipment.
In addition, be connected in series one second diode between described the first power pins or described second source pin and a power supply, the anodic bonding of described the second diode is to described the first power pins or described second source pin, and the negative electrode of described the second diode is connected to the current output terminal of described power supply.Described the second diode prevents that battery or main power source flow back to the USB power supply when utilizing described USB interface plug to charge.
Similar with Fig. 4, Fig. 5 shows equally be used to preventing that large electric current from pouring into the USB circuit and preventing battery or main power source flows back to the first and second diodes on the USB power supply.Be different from Fig. 4, as above described with reference to Fig. 2, be provided for specially identifying the pin of the model of the power supply adaptor that connects in Fig. 4, and in Circnit Layout shown in Figure 5, realize identification for the model of the power supply adaptor that connects by multiplexing positive and negative data pin.
Abovely describe in detail according to the usb socket of the embodiment of the present invention and corresponding USB interface plug thereof and the schematic circuit of using the mainboard of this usb socket with reference to Fig. 2-5.Referring to Fig. 6 and Fig. 7, application example according to the usb socket of the embodiment of the present invention is described.
Fig. 6 and Fig. 7 are respectively the schematic diagrames that diagram is used in laptop computer according to the usb socket of the embodiment of the present invention.As shown in Figure 6 and Figure 7, the usb socket 1 according to the embodiment of the present invention can be used for being connected with DC adapter 2 or USB device 3.When usb socket 1 was connected with DC adapter 2, usb socket 1 allowed large electric current to 8A to pass through, thereby was the laptop computer charging.And when usb socket 1 and USB device 3, usb socket 1 is used for carrying out the data communication between laptop computer and USB device 3.Therefore, realized allowing large electric current to pass through and the multiplexing function of data communication according to the usb socket 1 of the embodiment of the present invention.
Need to prove, in this manual, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make the process, method, article or the equipment that comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
At last, also need to prove, above-mentioned a series of processing not only comprise the processing of carrying out by the time sequence with order described here, and comprise parallel or respectively rather than the processing of carrying out in chronological order.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement by hardware.Based on such understanding, technical scheme of the present invention is to can embodying with the form of software product in whole or in part that background technology contributes, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
Above the present invention is described in detail, has used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (11)
1. usb socket comprises shell and is arranged in first group of pin and second group of pin in shell,
Described first group of pin arrangement be at the insert port place of described usb socket, and described the first pin comprises the first power pins, the first correction data pin, the first negative data pin and the first grounding pin, and
Described second group of pin is arranged in than the insert port of described first group of pin further from described usb socket along the direction of insertion of described usb socket, and described second group of pin comprises second source pin and the second grounding pin.
2. usb socket as claimed in claim 1, wherein said the first power pins allows the first electric current to pass through, and described second source pin allows the second electric current to pass through, and described the second electric current is greater than described the first electric current.
3. usb socket as claimed in claim 1, wherein be connected in series one first diode between described the first power pins or described second source pin and a usb host equipment, the anodic bonding of described the first diode is to the power line of described usb host equipment, and the negative electrode of described the first diode is connected to described the first power pins or described second source pin.
4. usb socket as claimed in claim 1, wherein be connected in series one second diode between described the first power pins or described second source pin and a power supply, the anodic bonding of described the second diode is to described the first power pins or described second source pin, and the negative electrode of described the second diode is connected to the current output terminal of described power supply.
5. usb socket as claimed in claim 1, wherein said first group of pin do not contact with described second group of pin.
6. usb socket as claimed in claim 1, wherein said second group of pin also comprise a connection device identification pin, are used for the equipment that identification is connected with described usb socket.
7. as the arbitrary described usb socket of claim 1 to 6, every pin in wherein said second group of pin is flexible (POGO) pin.
8. usb socket as claimed in claim 7, the USB interface plug that wherein inserts described usb socket has and the contact of described flexible pin coupling and the guide hole that is used for surrounding described flexible pin, when described USB interface plug inserted described usb socket, described contact contacted with every pin face in described second group of pin.
9. as the arbitrary described usb socket of claim 1 to 6, wherein when a USB interface plug inserts described usb socket, another USB interface plug can also insert described USB interface plug with in order to be connected with described usb socket.
10. usb socket as claimed in claim 1, wherein said the first correction data pin be connected the first negative data pin and also be used for the equipment that identification is connected with described usb socket.
11. usb socket as claimed in claim 1, wherein said first group of pin are the pins that meets one of A type USB, Type B USB, mini A type USB and mini Type B USB standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103969437A CN103138071A (en) | 2011-12-02 | 2011-12-02 | Universal serial bus (USB) interface socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103969437A CN103138071A (en) | 2011-12-02 | 2011-12-02 | Universal serial bus (USB) interface socket |
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| Publication Number | Publication Date |
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| CN103138071A true CN103138071A (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103969437A Pending CN103138071A (en) | 2011-12-02 | 2011-12-02 | Universal serial bus (USB) interface socket |
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| CN (1) | CN103138071A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305184A (en) * | 2014-07-04 | 2016-02-03 | 宏碁股份有限公司 | Universal serial bus interface and mobile electronic device |
| WO2016107033A1 (en) * | 2014-12-31 | 2016-07-07 | 小米科技有限责任公司 | Electronic device and data transmission system |
| US9984030B2 (en) | 2014-12-31 | 2018-05-29 | Xiaomi Inc. | Electronic device and data transmission system |
| CN109524816A (en) * | 2018-11-08 | 2019-03-26 | Oppo广东移动通信有限公司 | Universal Serial Bus Interface and electronic equipment |
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| CN2360998Y (en) * | 1998-12-29 | 2000-01-26 | 富士康(昆山)电脑接插件有限公司 | Socket electric connector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305184A (en) * | 2014-07-04 | 2016-02-03 | 宏碁股份有限公司 | Universal serial bus interface and mobile electronic device |
| WO2016107033A1 (en) * | 2014-12-31 | 2016-07-07 | 小米科技有限责任公司 | Electronic device and data transmission system |
| US9984030B2 (en) | 2014-12-31 | 2018-05-29 | Xiaomi Inc. | Electronic device and data transmission system |
| CN109524816A (en) * | 2018-11-08 | 2019-03-26 | Oppo广东移动通信有限公司 | Universal Serial Bus Interface and electronic equipment |
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Application publication date: 20130605 |