CN111344928A

CN111344928A - Adapter, charging cable and charging equipment

Info

Publication number: CN111344928A
Application number: CN201780095274.5A
Authority: CN
Inventors: 郭启明; 郭继龙; 陈增源
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2017-09-28
Filing date: 2017-09-28
Publication date: 2020-06-26
Also published as: WO2019061153A1

Abstract

An adapter (11), a charging cable (13), and a charging device (10). The adapter (11) comprises a first output interface (H1), the first output interface (H1) comprises a first power supply pin (1), a pair of first data transmission pins (2, 3), a first grounding pin (4) and a pair of second data transmission pins (5, 6), the first power supply pin (1) is used for outputting charging current, the pair of first data transmission pins (2, 3) is used for transmitting data signals, and the pair of second data transmission pins (5, 6) are directly electrically connected. The adapter (11) further comprises a processing control unit (110) and a first switch module (112), wherein the processing control unit (110) is used for controlling the first switch module (112) to be in a conducting state or a cut-off state, and when the first switch module (112) is in the conducting state, the second data transmission pins (5, 6) are electrically connected with the first power supply pin (1) so as to improve the charging current output by the adapter (11). The charging cable (13) includes a second output interface (H2) that matches the first output interface (H1). The charging device (10) comprises an adapter (11) and a charging cable (13) which are matched with each other.

Description

Adapter, charging cable and charging equipment

Technical Field

The invention relates to a charging device, in particular to an adapter, a charging cable and a charging device for providing quick charging for an electronic device.

Background

With the wide application of intelligent electronic products, the power consumption of the intelligent electronic products gradually increases with the use time or running programs. In addition to increasing the battery capacity of intelligent electronic products, it has become a solution for increasing the power consumption of batteries widely at present to perform quick charging on batteries to reduce the charging time.

At present, in order to achieve the purpose of fast charging, a more commonly used technical scheme can be a mode of increasing a current transmission pin in a charging interface, but such a scheme requires that the charging adapter, the charging cable and the charging interface of the charged electronic product must be specially configured, and cannot be compatible with a common charging adapter, the charging cable and the charged electronic product, so that inconvenience in use will be caused.

Disclosure of Invention

The embodiment of the invention discloses an adapter for charging, which can provide larger charging current.

Further, a charging cable matched with the adapter is provided.

Further, a charging device comprising the adapter and a charging cable is provided.

The adapter provided by the invention comprises a first output interface, wherein the first output interface comprises a first power supply pin, a first data transmission pin pair, a first grounding pin and a second data transmission pin pair, the first power supply pin is used for outputting charging current, and the first data transmission pin pair is used for transmitting data signals. The adapter further comprises a processing control unit and a first switch module, the second data transmission pin is directly and electrically connected to form a second data transmission pin, the first switch module is electrically connected between the second data transmission pin and the first power supply pin, the processing control unit is used for controlling the first switch module to be in a conducting state or a cut-off state, and when the first switch module is in the conducting state, the second data transmission pin is electrically connected with the first power supply pin and used for outputting charging current to improve the charging current output by the adapter.

The charging cable provided by the invention comprises a second output interface for receiving a charging current signal and a third output interface for outputting the charging current, wherein the second output interface comprises a second power supply pin, a fourth data transmission pin pair, a third grounding pin and a fifth data transmission pin pair, the second power supply pin is used for outputting the charging current, and the fourth data transmission pin pair is used for transmitting a data signal. The charging cable further comprises a second switch module, the fifth data transmission pin is directly and electrically connected to form a fifth data transmission pin, the second switch module is electrically connected between the fifth data transmission pin and the second power supply pin, the second switch module selects to be in a conducting state or a cut-off state according to whether the fifth data transmission pin receives a charging current, and when the second switch module is in the conducting state, the fifth data transmission pin is electrically connected with the second power supply pin and is used for outputting the charging current so as to improve the charging current output by the charging cable from the third output interface.

The charging equipment provided by the invention comprises the adapter and the charging cable, and the first output interface is matched with the second output interface. When the first output interface is electrically connected with the second interface, the first power supply pin is electrically connected with the second power supply pin, and the first data transmission pin pair is electrically connected with the fourth data transmission pin pair and used for transmitting data signals; the first grounding pin is electrically connected with the third pin, the second data transmission pin pair is electrically connected with the fifth data transmission pin pair, and the third output interface is used for electrically connecting the electronic equipment to be charged and providing the charging current for the electronic equipment to be charged

Compared with the prior art, the adapter and the charging cable use the second data transmission interface for transmitting the charging current, when the electronic device to be charged needs to be rapidly charged, the processing control unit controls the first switch module to electrically connect the second data transmission interface with the first power pin, that is, the second data transmission interface is used for transmitting the charging current and is also loaded to the first power pin, so that the charging current of the first power pin is increased. Therefore, the charging equipment can improve the output charging current to the maximum extent without changing the pin structure of the output interface, and ensure that no conflict occurs between data transmission and rapid charging, and can determine whether rapid charging needs to be executed according to actual needs so as to meet the requirements of users in many aspects.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of an overall connection structure of a charging device;

FIG. 2 is a schematic diagram of pin distribution of the first output interface and the second output interface shown in FIG. 1;

fig. 3 is a schematic diagram of the internal circuit connection structure of the charging device shown in fig. 1;

FIG. 4 is a schematic circuit diagram of the first switch module shown in FIG. 3;

fig. 5 is a schematic circuit diagram of the second switch module shown in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following describes the specific structure and operation principle of the charging device with reference to the drawings.

Please refer to fig. 1, which is a schematic diagram of an overall connection structure of a charging apparatus 10. As shown in fig. 1, the charging device 10 includes an adapter 11 and a charging cable 13 that are mated with each other. The adapter 11 includes a first output interface H1, the charging cable 13 includes a second output interface H2 and a third output interface H3, the first output interface H1 and the second output interface H2 are matched and can be plugged into each other, and the third output interface H3 is used for electrically connecting to the electronic device LA to be charged. In this embodiment, the first output interface H1 and the second output interface H2 are USB3.0 interfaces, and the interfaces of the second output interface H2 connected to the electronic device LA (LA in the figure) to be charged are USB type-c interfaces. The electronic device LA to be charged can be an electronic product such as a mobile phone, a charger, a tablet computer, and the like.

The adapter 11 is used for receiving a power signal from an ac power supply (not shown) and converting the power signal into a low-voltage dc voltage/current for storage or real-time output, and the adapter 11 outputs the low-voltage dc current as a charging current through the first output interface H1. In this embodiment, the adapter 11 is a crossover. Alternatively, in other embodiments of the present invention, the adapter 11 may be an electrical energy storage device such as a charger.

The charging cable 13 is used to transmit the low-voltage dc voltage/current output by the adapter 11 to the electronic device LA to be charged. Of course, the charging cable 13 may not only provide the charging current for the electronic device LA to be charged, but also provide data signal transmission for the electronic device LA to be charged.

Please refer to fig. 2, which is a schematic diagram illustrating the pin distribution of the output interfaces of the first output interface H1 and the second output interface H2 shown in fig. 1.

As shown in fig. 2, the first output interface H1 includes nine pins, wherein the first pin 1 is a first power supply pin Vbus 1; the second pin 2 and the third pin 3 are two sub-pins D-D + of the first data transmission pin pair respectively; the fourth pin 4 is a first ground pin GND; the fifth pin 5 and the sixth pin 6 are two sub-pins SSRX-, SSRX + of the second data transmission pin pair, respectively; the seventh pin 7 is a second ground pin GND; the eighth pin 8 and the ninth pin 9 are two sub-pins SSTX and SSTX + of the third data transmission pin pair, respectively. Preferably, the first output interface H1 further includes a mounting pin with the tenth pin 10 and the eleventh pin 11 being metal housings. It should be noted that, the data transmission pin pairs described in the embodiments of the present invention each include two sub-pins that are matched with each other. The first power supply pin Vbus1 is used to provide a power supply signal, and in this embodiment, the first power supply pin Vbus1 provides a charging current of 2A.

The two sub-pins D-, D + of the first data transmission pin pair are differential data transmission pins, and the data transmission rate thereof is 480Mbps, that is, the USB2.0 standard is implemented for data transmission. Two sub-pins SSRX and SSRX + of the second data transmission pin pair are high-speed differential signal receiving pins, two sub-pins SSTX and SSTX + of the third data transmission pin pair are high-speed differential signal sending pins, and when the four data transmission pins are used for data transmission, the data transmission rate can reach 5 Gbps.

In this embodiment, the two sub-pins SSRX-, SSRX + of the second data transmission pin pair are directly electrically connected to form the second data transmission pin SSRX, that is, the two sub-pins SSRX-, SSRX + of the second data transmission pin group are shorted to each other to form the second data transmission pin SSRX, and the second data transmission pin SSRX is used for transmitting the charging current. The sub-pins SSRX-, SSRX + of each second data transmission pin group can provide a charging current of 2A, and thus, the second data transmission pin SSRX formed by shorting the two sub-pins SSRX-, SSRX + of the second data transmission pin group can provide a charging current of 4A in total, so that the first power supply pin Vbus1 of the first output interface H1 and the two sub-pins SSRX-, SSRX + of the second data transmission pin pair can provide a charging current, so that the charging current output by the adapter 11 reaches 6A, and the charging current output by the adapter 11 is effectively increased. It should be noted that, the two sub-pins SSRX + and SSRX-of the second data transmission pin pair are shorted together, which means that the two sub-pins SSRX + and SSRX-of the second data transmission pin pair are both connected to the first switch module 112 (see fig. 3), so that the second data transmission pin SSRX formed by the two sub-pins SSRX-, SSRX + of the second data transmission pin group being shorted together can be understood as a virtual pin. And the third data transmission pin pair (SSTX-SSTX +) is suspended. The first grounding pin GND is directly and electrically connected with the second grounding pin GND and the mounting pins of the two metal shells.

Correspondingly, the second output interface H2 includes nine pins, where the first pin 1 is a second power supply pin Vbus 2; the second pin 2 and the third pin 3 are two sub-pins D-D + of a fourth data transmission pin pair respectively; the fourth pin 4 is a third ground pin GND; the fifth pin 5 and the sixth pin 6 are respectively two sub-pins SSRX +, SSRX + of a fifth data transmission pin pair, and the two sub-pins SSRX-, SSRX + of the fifth data transmission pin pair are short-circuited to form a fifth data transmission pin SSRX; the seventh pin 7 is a fourth ground pin GND; the eighth pin 8 and the ninth pin 9 are two sub-pins SSTX and SSTX + of the sixth data transmission pin pair, respectively. Preferably, the second output interface H2 further includes a mounting pin with the tenth pin 10 and the eleventh pin 11 being metal housings.

Wherein the second power pin Vbus2 is used for transmitting a power signal.

The fourth data transmission pin group (D-, D +) is used for transmitting data signals, and the data transmission rate is 480Mbps, namely, the USB2.0 standard is implemented for data transmission. Two sub-pins SSRX and SSRX + of the fifth data transmission pin pair are high-speed differential signal receiving pins, two sub-pins SSTX and SSTX + of the sixth data transmission pin pair are high-speed differential signal sending pins, and when the four data transmission pins are used for data transmission, the data transmission rate can reach 5 Gbps.

In this embodiment, the two sub-pins SSRX-, SSRX + of the fifth data transmission pin pair are directly electrically connected, i.e. are short-circuited to each other, for transmitting the charging current. The sixth data transmission pin group (SSTX-SSTX +) is suspended. The third grounding pin GND is directly and electrically connected with the fourth grounding pin GND and the mounting pins of the two metal shells. It should be noted that, the two sub-pins SSRX + and SSRX-of the fifth data transmission pin pair are shorted together, which means that the two sub-pins SSRX + and SSRX-of the fifth data transmission pin pair are both connected to the second switch module 132 (see fig. 3), so that the fifth data transmission pin SSRX formed by the two sub-pins SSRX-, SSRX + of the fifth data transmission pin group being shorted together can be understood as a virtual pin.

In this embodiment, the first output interface H1 and the second output interface H2 are matched with each other, so the number of pins, the position sequence, and the functions of the corresponding position pins are all the same. When the first output interface H1 is plugged with the second output interface H2, the first pin, the second pin, the third pin and the eleventh pin are correspondingly connected with each other in sequence. The first output interface H1 and the second output interface H2 are USB3.0 interfaces. When the first output interface H1 and the second output interface H2 are plugged with each other, the adapter 11 supplies a charging current to the charging cable 13 through the first power supply pin Vbus1 of the first output interface H1 and the two sub-pins SSRX-, SSRX of the second data transmission pin pair, and the charging cable 13 converges the received charging current to the electric wire connected to the second power supply pin Vbus2 through the two sub-pins SSRX-, SSRX + of the fifth data transmission pin pair and transmits the electric wire to the third output interface H3 and the electronic device LA to be charged.

It should be noted that the data transmission function and the charging current supply of the second and fifth data transmission pin pairs SSRX ", SSRX + are not simultaneously performed, that is, when the second and fifth data transmission pin pairs SSRX", SSRX + are used to supply the charging current, the second and fifth data transmission pin pairs SSRX ", SSRX + cannot perform data transmission.

Please refer to fig. 3, which is a schematic diagram of the internal circuit connection structure of the charging apparatus shown in fig. 1.

As shown in fig. 3, the adaptor 11 includes a process control module 110 and a first switch module 112 electrically connected to each other. The first switch module 112 is electrically connected between the second data transmission pin SSRX of the first output interface H1 and the first power supply pin Vbus1, and is in an on state or an off state under the control of the process control module 110. When the first switch module 110 is in the on state, the second data transmission pin SSRX is electrically connected to the first power supply pin Vbus 1; when the first switch module 112 is in the off state, the second data transmission pin SSRX is electrically disconnected from the first power supply pin Vbus 1.

The charging cable 13 includes a second switch module 132, wherein the second switch module 132 is electrically connected between the fifth data transmission pin SSRX of the second output interface H2 and the second power supply pin Vbus2, and is correspondingly determined to be in an on state or an off state according to whether the fifth data transmission pin SSRX receives a charging current. In this embodiment, if the fifth data transmission pin SSRX receives the charging current, the second switch module 132 is in the on state, otherwise, if the fifth data transmission pin SSRX does not receive the charging current, the second switch module 132 is in the off state. When the second switch module 132 is in the on state, the fifth data transmission pin SSRX is electrically connected to the second power supply pin Vbus 2; when the second switch module 132 is in the off state, the fifth data transmission pin SSRX is electrically disconnected from the second power supply pin Vbus 2.

Preferably, the first switch module 112 and the second switch module 132 have the same operation status at the same time, i.e. are both in the on status or both in the off status.

Preferably, the second switch module 132 is further used for verifying whether the charging cable 13 is suitable for quick charging for the adapter 11. That is, if the charging cable 13 is not provided with the second switch module 132, it indicates that the charging cable 13 is not matched with the adapter 11 or is not suitable for providing the fast charging current of 6A, so the adapter 11 only provides the normal charging current of 2A.

Please refer to fig. 4, which is a schematic circuit diagram of the first switch module 112 shown in fig. 3.

The first switch module 112 includes a first switch element M1, a second switch element M2, a third switch element M3 and a fourth switch element M4 connected in series between the first power supply pin Vbus1 and the second data transmission pin SSRX.

The process control unit 110 includes a first switch control terminal C1 and a second switch control terminal C2. The processing control unit 110 outputs a first control signal S1 from the first switch control terminal C1, and outputs a second control signal S2 from the second switch control terminal C2. The first control signal S1 is used to control the first switching element M1 to be in a conducting state or an off state, and the second control signal S2 is used to control the second switching element M2 to be in a conducting state or an off state.

The first switching element M1 and the second switching element M2 are in a turned-on state or a turned-off state in synchronization under the control of the process control unit 110. When the first switch element M1 and the second switch element M2 are both in the on state, the second data transmission pin SSRX is electrically connected to the first power supply pin Vbus 1; when the first switching element M1 and the second switching element M2 are in the off state, the second data transmission pin SSRX is electrically disconnected from the first power supply pin Vbus 1.

The first switching element M1 includes a first control terminal PC1, a first conductive terminal PE1, and a second conductive terminal PE 2. The first control terminal PC1 is electrically connected to the processing control unit 110 through the first voltage dividing resistor RP1 and the third switching element M3, and specifically, the first control terminal PC1 is connected to one end of the first voltage dividing resistor RP 1. The first conductive terminal PE1 is electrically connected to the first power pin Vbus 1. The second conductive terminal PE2 is electrically connected to the voltage input terminal VCC.

The first control terminal PC1 receives the first control signal S1 from the processing control unit 110, and the first switch element M1 is turned on or off according to the control of the first control signal S1 received by the first control terminal PC 1. When the first switch element M1 is in the on state, the first conductive terminal PE1 is electrically connected to the second conductive terminal PE 2; when the first switch element M1 is in the off state, the first conductive terminal PE1 is electrically disconnected from the second conductive terminal PE 2.

The second switching element M2 includes a second control terminal PC2, a third conductive terminal PE3, and a fourth conductive terminal PE 4. The second control terminal PC1 is electrically connected to the process control unit 110, specifically, the second control terminal PC2 is electrically connected to the process control unit 110 through the second voltage-dividing resistor RP2 and the fourth switching element M4, and the second control terminal PC2 is connected to one end of the second voltage-dividing resistor RP 2. The third conductive terminal PE3 is electrically connected to the voltage input terminal VCC, and the fourth conductive terminal PE4 is electrically connected to the second data transmission terminal SSRX.

The second control terminal PC2 receives the second control signal S2 from the processing control unit 110, and the second switching element M2 is in a conducting state or a cut-off state under the control of the second control signal S2 received by the first control terminal PC 1. When the second switch element M2 is in the on state, the third conductive terminal PE3 is electrically connected to the fourth conductive terminal PE4, and when the second switch element M2 is in the off state, the third conductive terminal PE3 is electrically disconnected from the fourth conductive terminal PE 4.

The third switching element M3 includes a third control terminal PC3, a fifth conductive terminal PE5, and a sixth conductive terminal PE 6. The third control terminal PC3 is electrically connected to the first switch control terminal C1, the fifth conductive terminal PE5 is electrically connected to the other end of the first voltage dividing resistor RP1, and the sixth conductive terminal PE6 is electrically connected to the signal ground terminal SG.

The fourth switching element M4 includes a fourth control terminal PC4, a seventh conductive terminal PE7, and an eighth conductive terminal PE 8. The fourth control terminal PC4 is electrically connected to the second switch control terminal C2, the seventh conductive terminal PE7 is electrically connected to the second control terminal PC2 through a second voltage-dividing resistor RP2, and the eighth conductive terminal PE8 is electrically connected to a signal ground terminal SG.

The first control terminal PC1 and the voltage input terminal VCC further include a first protection resistor RC1 therebetween, and the second control terminal PC2 and the voltage input terminal VCC further include a second protection resistor RC2 therebetween.

In this example, the first switch element M1 and the second switch element M2 are both Metal-Oxide-Semiconductor (MOS) transistors. The first control terminal PC1 and the second control terminal PC2 of the first switch element M1 and the second switch element M2 are gates of MOS transistors, the second conductive terminal PE2 and the third conductive terminal PE3 are drains of the MOS transistors, and the first conductive terminal PE1 and the fourth conductive terminal PE4 are sources of the MOS transistors.

The third switching element M3 and the fourth switching element M4 are all N-type triode transistors. The third control terminal PC3 and the fourth control terminal PC4 of the third switching element M3 and the fourth switching element M4 are bases of the three-level transistor, the fifth conductive terminal PE5 and the seventh conductive terminal PE7 are emitters of the three-level transistor, and the sixth conductive terminal PE6 and the eighth conductive terminal PE8 are collectors of the three-level transistor.

Please refer to fig. 5, which is a schematic circuit diagram of the second switch module 132 shown in fig. 3.

The second switch module 132 includes a fifth switch element M5 and a sixth switch element M6.

The fifth switching element M5 is electrically connected to the second power supply pin Vbus2 and the fifth data transmission pin SSRX. When the fifth switching element M5 is in the on state, the second power supply pin Vbus2 is electrically connected to the fifth data transmission pin SSRX; when the fifth switching element M5 is in an off state, the second power supply pin Vbus2 is electrically disconnected from the fifth data transmission pin SSRX.

The fifth switch element M5 includes a fifth control terminal PC5, a ninth conductive terminal PE9 and a tenth conductive terminal PE10, the fifth control terminal PC5 is electrically connected to the fourth data transmission pin SSRX, the ninth conductive terminal PE9 is electrically connected to the second power pin Vbus2, and the tenth conductive terminal P10 is electrically connected to the fifth data pin SSRX. The fifth switching element M5 is determined to be in an on state or an off state by whether the fifth control terminal PC5 receives a charging current from the fifth data pin SSRX. When the fifth data pin SSRX receives the charging current, the fifth switching element M5 is in a conducting state, and the ninth conductive terminal PE9 is electrically connected to the tenth conductive terminal PE 10; when the fifth data pin SSRX does not receive the charging current, the fifth switching element M5 is in the off state, and the ninth conductive terminal PE9 is electrically disconnected from the tenth conductive terminal PE 10.

The sixth switching element M6 includes a sixth control terminal PC6, an eleventh conductive terminal PE11, and a twelfth conductive terminal PE 12. The sixth control terminal PC6 is directly electrically connected to the fifth data transmission pin SSRX, the eleventh conductive terminal PE11 is electrically connected to the fifth control terminal PC5 through the third voltage dividing resistor RP3, and the twelfth conductive terminal PE12 is electrically connected to the signal ground terminal SG. A third protection resistor RC3 is further included between the fifth control terminal PC5 and the second power supply pin Vbus 2.

In this embodiment, the fifth switching element M3 is a Metal-Oxide-Semiconductor (MOS) transistor, and the sixth switching element M6 is an N-type triode transistor. So that the first switch module 112 can have less power consumption and can perform corresponding operations quickly.

The fifth control terminal PC5 of the fifth switching element M5 is a gate of the MOS transistor, the ninth conductive terminal PE9 is a source of the MOS transistor, and the tenth conductive terminal PE10 is a drain of the MOS transistor. The sixth control terminal PC6 of the sixth switching element M6 is a base of the three-level transistor, the eleventh conductive terminal PE11 is a collector of the three-level transistor, and the twelfth conductive terminal PE12 is an emitter of the three-level transistor.

The operation of the charging device will now be described in detail with reference to fig. 3-5.

The adaptor 11 and the charging cable 13 are electrically connected to the second output interface H2 through the first output interface H1, and the charging cable 13 is electrically connected to the electronic device LA to be charged through the third output interface H3, and after the power-on is performed, the processing control unit 110 determines whether the fast charging is currently required to be performed according to the state of the electronic device LA to be charged. In another embodiment, the processing control unit 110 determines whether the electronic device LA needs to be rapidly charged according to whether the first data transmission pin pair receives a preset handshake signal. When receiving the preset handshake signal, the processing control unit 110 determines that the electronic device LA needs to be quickly charged. When the electronic device LA to be charged needs to perform fast charging, the adapter 11 and the charging cable 13 are in a fast charging state, the processing control unit 10 controls the first switch module 112 and the second switch module 132 to be in a conducting state, that is, the second data transmission pin SSRX is electrically connected to the first power supply pin Vbus1, the fifth data transmission pin SSRX is electrically connected to the second voltage pin Vbus2, and the charging current provided by the second data transmission pin SSRX is converged and loaded onto the wire connected to the second power supply pin Vbus2 through the first switch module 112 and the second switch module 132, so that the charging current output by the third output interface H3 and provided to the electronic device LA to be charged is increased compared with the charging current provided only by the first power supply pin Vbus 1. On the contrary, when the electronic device LA to be charged does not need to perform fast charging, that is, the adapter 11 and the charging cable 13 are in a non-fast charging state, the processing control unit 110 controls the first switch module 112 and the second switch module 132 to be in an off state, the second data transmission pin SSRX is electrically disconnected from the first power pin Vbus1, the fifth data transmission pin SSRX is electrically disconnected from the second voltage pin Vbus2, and the charging current is provided to the second power pin Vbus2 only through the first power pin Vbus1 and is transmitted to the electronic device LA to be charged to supply power to the electronic device LA to be charged.

For example, when the adapter 11 and the charging cable 13 are in the fast charging state, the first power pin Vbus1 and the second data transmission pin SSRX respectively provide a charging current of 2A, and the total charging current collected to the wire connected to the second power pin Vbus2 is 6A; when the adapter 11 and the charging cable 13 are in a non-fast charging state, only the first power pin Vbus1 provides a 2A charging current transmission to the wire connected to the second power pin Vbus 2.

Specifically, the processing control unit 110 outputs a first control signal S1 and a second control signal S2 from the first switch control terminal C1 and the second switch control terminal C2, respectively, so that the first switch module 112 is in a conducting state, and the second data transmission pin SSRX is electrically connected to the first power supply pin Vbus 1. Further, since the first output interface H1 is electrically connected to the second output interface H2, the second data transmission pin SSRX is directly electrically connected to the fifth data transmission pin SSRX, and thus, the fifth data transmission pin SSRX receives the charging current provided by the second data transmission pin SSRX, so that the second switch module 132 is also electrically connected, and the fifth data transmission pin SSRX is electrically connected to the second voltage pin Vbus 2. In this way, the charging current of the second data transmission pin SSRX is converged and applied to the wire connected to the second power supply pin Vbus2, thereby effectively increasing the charging current of the second output interface H2.

More specifically, the processing control voltage 10 provides a high-level first control signal S1 and a high-level second control signal S2 to control the third switching element M3 and the fourth switching element M4 to be in a conducting state, the third switching element M3 and the fourth switching element M4 are conducted to pull the first control terminal PC1 and the second control terminal PC2 low, the first control terminal PC1 and the second control terminal PC2 are pulled low to make the first switching element M1 and the second switching element M2 in a conducting state, and the first voltage pin Vbus1 is electrically connected to the second data transmission pin SSRX through the first conductive terminal PE1, the second conductive terminal PE2, the voltage input terminal VCC, the third conductive terminal PE3, and the fourth conductive terminal PE4, so as to electrically connect the first switch module 112 and electrically connect the first voltage pin Vbus1 and the second data transmission pin SSRX.

Further, when the second data transmission pin SSRX is electrically connected to the fifth data transmission pin SSRX and provides the charging current, the second switch module 132 is in a conducting state, i.e., the fifth data transmission pin SSRX is electrically connected to the second voltage pin Vbus2 in the second output interface H2.

More specifically, after the fifth data transmission pin SSRX receives the charging current, the sixth switching element M6 is in a conducting state, and the fifth control terminal PC5 is pulled down to the ground voltage through the eleventh conductive terminal PE11 and the twelfth conductive terminal PE12, so that the fifth switching element M5 is in a conducting state, and the second voltage pin Vbus2 is electrically conducted with the fifth data transmission pin SSRX through the ninth conductive terminal PE9, the tenth conductive terminal PE 10. Thereby, the second switch module 132 and the second voltage pin Vbus2 are electrically connected to the fifth data transmission pin SSRX.

Based on this, the charging currents of the second data transmission pin SSRX and the first power supply pin Vbus1 are both loaded on the wire connected to the second power supply pin Vbus2, so that the charging current provided to the electronic device LA to be charged is increased to 3 times of the charging current of the ordinary charging, and the purpose of rapidly charging the electronic device LA to be charged is achieved.

Compared with the prior art, the charging device 10 can improve the output charging current to the maximum extent without changing the pin structure of the output interface, and prevent any conflict between data transmission and fast charging, and can determine whether fast charging needs to be performed according to actual needs, so as to meet the requirements of users in many aspects.

The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist in understanding the core concepts of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

An adapter, comprising a first output interface, wherein the first output interface comprises a first power pin, a first data transmission pin pair, a first ground pin, and a second data transmission pin pair, the first power pin is used for outputting charging current, the first data transmission pin pair is used for transmitting data signals, the adapter further comprises a processing control unit and a first switch module, the second data transmission pin is directly and electrically connected to form a second data transmission pin, the first switch module is electrically connected between the second data transmission pin and the first power pin, the processing control unit is used for controlling the first switch module to be in a conducting state or a cut-off state, and when the first switch module is in the conducting state, the second data transmission pin is electrically connected with the first power pin, the adapter is used for outputting a charging current to boost the charging current output by the adapter.
The adapter of claim 1, wherein the first switch module comprises a first switch element and a second switch element connected in series between the first power pin and the second data transmission pin, the first switch element and the second switch element are synchronously in a conducting state or a cut-off state under the control of the processing control unit, and when the first switch element and the second switch element are in the conducting state, the second data transmission pin is electrically connected to the first power pin for outputting a charging current; when the first switch element and the second switch element are in an off state, the second data transmission pin is electrically disconnected from the first power supply pin.
The adapter as claimed in claim 2, wherein the processing control unit comprises a first switch control terminal and a second switch control terminal, the processing control unit outputs a first control signal from the first switch control terminal, the processing control unit outputs a second control signal from the second switch control terminal, the first control signal is used for controlling the first switch element to be in a conducting state or a cut-off state, and the second control signal is used for controlling the second switch element to be in a conducting state or a cut-off state.
The adapter as claimed in claim 3, wherein the first switch element comprises a first control terminal, a first conductive terminal and a second conductive terminal, the first control terminal is electrically connected to the first switch control terminal, the first conductive terminal is electrically connected to the first power pin, the second conductive terminal is electrically connected to a voltage input terminal, the first control terminal receives the first control signal from the first switch control terminal, the first conductive terminal is electrically connected to the second conductive terminal when the first switch element is in an on state, and the first conductive terminal is electrically disconnected from the second conductive terminal when the first switch element is in an off state;

the second switch element comprises a second control end, a third conductive end and a fourth conductive end, the second control end is electrically connected to the second switch control end, the third conductive end is electrically connected to the voltage input end, the fourth conductive end is electrically connected to the second data transmission end, the second control end receives the second control signal from the second switch control end, when the second switch element is in a conducting state, the third conductive end is electrically connected to the fourth conductive end, and when the second switch element is in a stopping state, the third conductive end is electrically disconnected from the fourth conductive end.
The adapter of claim 4 wherein the first switching element and the second switching element are both P-type metal oxide field effect transistors; the first control end and the second control end are grids of a metal oxide field effect transistor, the second conducting end and the third conducting end are drains of the metal oxide field effect transistor, and the first conducting end and the fourth conducting end are sources of the metal oxide field effect transistor.
The adapter as claimed in claim 4, wherein the first switch module further comprises a third switch element and a fourth switch element, the third switch element comprises a third control terminal, a fifth conductive terminal and a sixth conductive terminal, the third control terminal is electrically connected to the first switch control terminal, the fifth conductive terminal is electrically connected to the first control terminal through a first divider resistor, and the sixth conductive terminal is electrically connected to a ground terminal; the fourth switch element comprises a fourth control end, a seventh conducting end and an eighth conducting end, the fourth control end is electrically connected with the second switch control end, the seventh conducting end is electrically connected with the second control end through a second divider resistor, and the eighth conducting end is electrically connected with the grounding end.
The adapter of claim 6, wherein the third switching element and the fourth switching element are both N-type tripolar transistors; the third control end and the fourth control end are bases of the three-level transistors, the fifth conductive end and the seventh conductive end are emitters of the three-level transistors, and the sixth conductive end and the eighth conductive end are collectors of the three-level transistors.
The adapter of claim 4 further comprising a first protection resistor between the first control terminal and the voltage input terminal and a second protection resistor between the second control terminal and the voltage input terminal.
The adapter as claimed in any one of claims 1-8, wherein the first output interface is a USB3.0 interface, the second pair of data transmission pins are high-speed differential signal receiving pins, each sub-pin of the second pair of data transmission pins provides a charging current which is the same as the charging current provided by the first power pin, the first output interface further comprises a second ground pin and two metal housing mounting pins, and the first ground pin, the second ground pin and the two mounting pins are directly electrically connected.
A charging cable comprises a second output interface for receiving a charging current signal and a third output interface for outputting the charging current, wherein the second output interface comprises a second power supply pin, a fourth data transmission pin pair, a third grounding pin and a fifth data transmission pin pair, the second power supply pin is used for outputting the charging current, the fourth data transmission pin pair is used for transmitting a data signal, the charging cable is characterized by further comprising a second switch module, the fifth data transmission pin is directly and electrically connected to form a fifth data transmission pin, the second switch module is electrically connected between the fifth data transmission pin and the second power supply pin, the second switch module is selected to be in a conducting state or a cut-off state according to whether the fifth data transmission pin receives the charging current, when the second switch module is in the conducting state, the fifth data transmission pin is electrically connected with the second power supply pin and used for outputting charging current so as to improve the charging current output by the charging cable from the third output interface.
The charging cable according to claim 10, wherein when the fifth data transmission pin receives a charging current, the second open module is in a conducting state; when the fifth data transmission pin does not receive the charging current, the second die sinking group is in an off state.
The charging cable according to claim 11, wherein the second switch module comprises a fifth switch element, the fifth switch element is electrically connected to the second power pin and the fifth data transmission pin, and when the fifth switch element is in a conducting state, the second power pin and the fifth data transmission pin are electrically conducted; when the fifth switching element is in a cut-off state, the second power supply pin and the fifth data transmission pin are electrically disconnected.
The charging cable according to claim 12, wherein the fifth switching element comprises a fifth control terminal, a ninth conductive terminal and a tenth conductive terminal, the fifth control terminal is electrically connected to the fifth data transmission pin, the ninth conductive terminal is electrically connected to the second power pin, the tenth conductive terminal is electrically connected to the fifth data transmission pin, the fifth switching element is determined to be in an on state or an off state by whether the fifth control terminal receives a charging current from the fifth data transmission pin, and when the fifth switching element is in the on state, the ninth conductive terminal is electrically connected to the tenth conductive terminal; when the fifth switch element is in an off state, the ninth conductive terminal and the tenth conductive terminal are electrically disconnected.
The charging cable according to claim 13, wherein the second switch module further comprises a sixth switch element, the sixth switch element comprises a sixth control terminal, an eleventh conductive terminal and a twelfth conductive terminal, the sixth control terminal is directly electrically connected to the fifth data transmission pin, the eleventh conductive terminal is electrically connected to the fifth control terminal through a third voltage dividing resistor, the twelfth conductive terminal is electrically connected to a ground terminal, and a third protection resistor is further included between the fifth control terminal and the second power supply pin.
The charging cable according to any one of claims 9 to 14, wherein the second output interface is a USB3.0 interface, the fifth pair of data transmission pins are high-speed differential signal receiving pins, each of the fifth data transmission pins provides a charging current which is the same as the charging current received by the second power supply pin, the second output interface further includes a fourth ground pin and two metal housing mounting pins, and the third ground pin, the fourth ground pin and the two mounting pins are directly electrically connected.
The charging cable according to any one of claims 9 to 14, wherein the five switching elements are PMOS.
The charging cable of any one of claims 9-14, further comprising a third output interface.
A charging device, comprising the adapter of any one of claims 1 to 9 and the charging cable of any one of claims 10 to 17, wherein the first output interface is matched with the second output interface, wherein when the first output interface is electrically connected with the second output interface, the first power pin is electrically connected with the second power pin, and the first data transmission pin pair is electrically connected with the fourth data transmission pin pair for transmitting data signals; the first ground pin is electrically connected with the third pin, the second data transmission pin pair is electrically connected with the fifth data transmission pin pair, and the third output interface is used for electrically connecting the electronic equipment to be charged and providing the charging current for the electronic equipment to be charged.
The charging device according to claim 18, wherein when the charging device is in a fast charging state, the processing control unit is configured to control the first switch module and the second switch module to be in a conducting state, the second data transmission pin is electrically connected to the first power pin, the fifth data transmission pin is electrically connected to the second power pin, the second data transmission pin and the first power pin both provide charging current, and the charging current provided by the second data transmission pin is aggregated and loaded to a wire connected to the second power pin through the fifth data transmission pin, so as to boost the charging current output by the charging cable.
The charging device according to claim 19, wherein when the charging device is in a non-fast charging state, the processing control unit is configured to control the first switch module and the second switch module to be in an off state, the second data transmission pin is electrically disconnected from the first power pin, the fifth data transmission pin is electrically disconnected from the second power pin, and the first power pin provides a charging current to the second power pin.