CN115642446A - Data line, charger, charging assembly and charging protection method - Google Patents

Abstract

The disclosure relates to a data line, a charger, a charging assembly and a charging protection method. Wherein, the data line includes: the Type-C connector is connected with the terminal equipment in a plugging mode and comprises an auxiliary terminal; the USB plug is connected with the USB socket in a plugging and unplugging manner and comprises a power feedback terminal; the connecting wire is connected with the Type-C connector and the USB plug and comprises a first core wire; the first core wire is connected with the auxiliary terminal and the power feedback terminal to form a charging power feedback channel; and the terminal equipment feeds the received power back to the equipment provided with the USB socket through the charging power feedback channel. Through the charging power feedback channel, the equipment provided with the USB socket can judge whether extra power loss occurs in the charging loop. When extra power loss occurs, the equipment provided with the USB socket stops outputting power, so that a charging loop with short circuit and heat loss faults is cut off, and personal safety and property loss caused by fire disasters caused by charging are avoided.

Description

Data line, charger, charging assembly and charging protection method

Technical Field

The disclosure relates to the field of wired charging of electronic equipment, in particular to a data line, a charger, a charging assembly and a charging protection method.

Background

In the related art, a charging fault is caused by a short circuit caused by foreign matters entering a charging interface of a mobile device, even a fire is caused, which is a quality problem and a potential safety hazard existing in the wired charging industry all the time, and particularly, the risk of the potential safety hazard is higher and higher along with the increasing charging power in recent years.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a data line, a charger, a charging assembly, and a charging protection method.

According to a first aspect of embodiments of the present disclosure, there is provided a data line including: the Type-C connector is connected with the terminal equipment in a plugging manner and comprises an auxiliary terminal; the USB plug is connected with the USB socket in a plugging and unplugging manner and comprises a power feedback terminal; the connecting wire is connected with the Type-C connector and the USB plug and comprises a first core wire; the first core wire is connected with the auxiliary terminal and the power feedback terminal to form a charging power feedback channel; and the terminal equipment feeds back the received power to the equipment provided with the USB socket through the charging power feedback channel.

In some embodiments, the auxiliary terminal is an SBU1 terminal or an SBU2 terminal of the Type-C connector.

In some embodiments, the Type-C connector further comprises a CC terminal, the USB plug further comprises a quick-charging terminal, and the connecting wire further comprises a second core wire; and the second core wire is connected with the CC terminal and the quick-charging terminal to form a quick-charging protocol channel.

In some embodiments, the USB plug further comprises a power terminal, a first signal terminal, a second signal terminal, and a ground terminal arranged at intervals; the power feedback terminal and/or the quick charging terminal are aligned with a gap between at least two of the power terminal, the first signal terminal, the second signal terminal and the ground terminal.

In some embodiments, the power feedback terminal is aligned with a gap between the second signal terminal and the ground terminal; the quick charge terminal is aligned with a gap between the power terminal and the first signal terminal.

In some embodiments, the power terminal, the first signal terminal, the second signal terminal, and the ground terminal form a first row of terminals side-by-side, the first row of terminals being disposed proximate an outer side of the USB plug; the power feedback terminal with fill the terminal side by side and form the second row terminal, the second row terminal is close to the inboard setting of USB plug.

In some embodiments, the power feedback terminal is an elastic metal sheet in a bent shape.

According to a second aspect of the embodiments of the present disclosure, there is provided a charger for use with the data cable of the first aspect, the charger comprising a housing and a USB socket, the USB socket being located within the housing; the USB socket includes: the power feedback pin is connected with a power feedback terminal of the USB plug in the data line in a matching manner, and receives the receiving power fed back by the terminal equipment; the casing is provided with: the power output end is connected with the USB plug in the data line and is used for outputting power; and the control chip calculates a power difference value between the output power and the received power, and controls the power output end to stop outputting the power when the power difference value is larger than a preset difference value.

In some embodiments, a quick-charging pin is further disposed on the socket carrying portion, and the quick-charging pin is connected to a quick-charging terminal of the USB plug in the data line in a matching manner, so as to achieve a quick-charging protocol with a terminal device.

In some embodiments, the socket carrier is further provided with a power pin, a first signal pin, a second signal pin and a ground pin which are arranged at intervals; the power feedback pin and/or the fast charge pin are aligned with a gap between at least two of the power pin, the first signal pin, the second signal pin, and the ground pin.

In some embodiments, the power feedback pin is aligned with a gap between the second signal pin and the ground pin; the fast charge pin is aligned with a gap between the power pin and the first signal pin.

In some embodiments, the power pin, the first signal pin, the second signal pin, and the ground pin are arranged side by side to form a first row of pins, the first row of pins being disposed proximate to an inner side of the USB socket; the power feedback pins and the quick charging pins form a second row of pins side by side, and the second row of pins are arranged close to the outer side of the USB socket.

In some embodiments, the power feedback pin is a metal sheet in a flat plate shape.

According to a third aspect of embodiments of the present disclosure, there is provided a charging assembly comprising: the data line according to the first aspect, wherein the Type-C connector of the data line is connected to a terminal device in a plug-and-pull manner; the charger according to the second aspect, wherein a USB socket of the charger is connected to the USB plug of the data line in a pluggable manner; when the terminal equipment is charged, the terminal equipment feeds back received power to the charger through the data line, a control chip of the charger calculates a power difference value between output power and the received power, and when the power difference value is larger than a preset difference value, the control chip controls the power output end to stop outputting power.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a charging protection method using a charger, the charging protection method including: determining output power, and monitoring received power received by the terminal equipment through a power feedback channel of a data line; calculating a power difference between the output power and the received power; and when the power difference value is larger than a preset difference value, controlling the charger to stop outputting power.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the USB plug sets up the power feedback terminal to be connected with the auxiliary terminal of Type-C connector, set up first heart yearn alone simultaneously in the connecting wire, connect power feedback terminal and auxiliary terminal, form the power feedback channel that charges. Through the data line, when the terminal equipment is charged, the terminal equipment feeds back received power to the equipment provided with the USB socket through the charging power feedback channel, and the equipment provided with the USB socket compares the power output by the equipment with the power received by the terminal equipment, so that whether extra power loss occurs in a charging loop or not is judged. When extra power loss occurs in the charging process, the short circuit and heat loss faults occur, and the equipment provided with the USB socket stops outputting power, so that a charging loop with the short circuit and heat loss faults is cut off, and personal safety and property loss caused by fire disasters caused by charging are avoided.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram illustrating a structure of a data line according to an exemplary embodiment.

Fig. 2 is a schematic diagram illustrating a structure of a data line according to still another exemplary embodiment.

FIG. 3 is a terminal schematic of a Type-C connector shown according to an exemplary embodiment.

Fig. 4 is a schematic diagram illustrating a structure of a USB plug according to an exemplary embodiment.

Fig. 5 is a schematic structural diagram of a USB plug according to another exemplary embodiment.

Fig. 6 is a schematic diagram of a USB receptacle according to an exemplary embodiment.

Fig. 7 is a schematic diagram of a charger according to an exemplary embodiment.

Fig. 8 is a schematic diagram illustrating a structure of a charger according to another exemplary embodiment.

Fig. 9 is a flow chart illustrating a charge protection method according to an example embodiment.

Fig. 10 is a block diagram illustrating a structure of a mobile terminal according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosure, as detailed in the appended claims.

In the related art, the temperature protection is carried out on the mobile phone auxiliary plate. Specifically, when the charging interface of the mobile phone is short-circuited and generates heat, the thermistor on the mobile phone subplate senses high temperature, and the resistance value change of the thermistor causes the voltage change at two ends of the thermistor. The mobile phone receives the abnormal voltage signal and then feeds back the voltage signal to the charger to stop supplying power, so that the fault deterioration and fire hazard are avoided.

However, there still exists a drawback of hysteresis in the related art: when a charging short circuit occurs and high temperature is generated, the mobile phone auxiliary board heating degree protection scheme can sense and start, so that the mobile phone auxiliary board heating degree protection scheme cannot effectively inhibit faults in time, and only serious consequences such as problem deterioration and fire disasters can be avoided. In addition, the thermistor can sense high-temperature starting protection only when the position where short circuit generates heat is close to the thermistor. If the short circuit heating position is not near the thermistor, the temperature protection mechanism can not be started and can not work.

Accordingly, the present disclosure provides a data line, a charger, and a charging assembly.

Fig. 1 illustrates a data line 10 according to an exemplary embodiment, and fig. 2 illustrates a data line 10 according to another embodiment.

As shown in fig. 1 and 2, the data line 10 includes a Type-C connector 11, a USB (Universal Serial Bus) plug 12, and a connection line 13. The Type-C connector 11 is used for being connected with a terminal device in a plugging manner, and electrically coupling the data line 10 with external devices such as the terminal device. The USB plug 12 is connected to the USB socket by plugging and unplugging, and electrically couples the data line 10 to an external device such as a terminal device provided with the USB socket. The connecting wire 13 is used for connecting Type-C connector 11 and USB plug 12, is equipped with a plurality of heart yearns in the connecting wire 13.

Further, the terminal device may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, a translator, a watch, a bracelet, and the like wearable device. In the present disclosure, a terminal device that is connected to the Type-C connector 11 by plugging is described in detail by taking a mobile phone as an example.

In some embodiments, as shown in FIG. 3, a terminal schematic of a Type-C connector 11 is shown according to an exemplary embodiment.

The Type-C connector 11 may include a male connector and a female connector. The Type-C connector 11 as a female head may have 24 terminals, and the Type-C connector 11 as a male head may have 22 terminals. Whereas the Type-C connector 11 in the data line 10 is typically male, i.e. has 22 terminals, with the Type-C connector 11.

As further shown in fig. 3, the male header of the Type-C connector 11 may include two pairs of GND (ground) terminals, two pairs of VBUS (power) terminals, four pairs of TX (transmit)/RX (receive) terminals, a pair of D +/D-terminals, a pair of auxiliary terminals (SBU), and a pair of CC (Configuration Channel) terminals.

Further, in order to designate the positions of the terminals more clearly, the terminals located at the lower side are denoted by B1 to B12, and the terminals located at the upper side are denoted by a12 to A1. Here, "above" and "below" are merely intended to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. For example, the upper terminal may be referred to as a lower terminal, and the lower terminal may be referred to as an upper terminal.

Further, two pairs of GND terminals and two pairs of VBUS terminals are distributed on the Type-C connector 11 in an up-down and left-right symmetrical manner, so that when the Type-C connector 11 is connected with a mobile phone in a plugging manner, the Type-C connector 11 and the mobile phone can be supported to be plugged in and out in a positive and negative manner. GND terminal and VBUS terminal can form the charging circuit, make Type-C connector 11 can satisfy the demand of charging.

Wherein, four pairs of TX/RX terminals are in accordance with USB3.0 standard and are used for transmitting data signals. The two pairs of D +/D-terminals conform to the USB2.0 standard and are used for transmitting differential signals.

The pair of auxiliary terminals are SBU1 terminals or SBU2 terminals, and the auxiliary terminals may have different purposes in different application scenarios. For example, when DP signal transmission is performed in ALT MODE, it is used as an audio transmission channel. And when the TYPE-C analog audio headset accessory mode is entered, the microphone signal transmission channel is used. As can be seen from the above, the small-sized Type-C connector 11 can simultaneously meet three transmission requirements of charging, data and audio/video.

The CC terminal can have functions of detecting USB connection, detecting positive and negative insertion and the like. The CC terminal is a channel which is used for information exchange by a quick charging standard and is used for realizing quick charging.

The Type-C connector 11 described above may have all 22 terminals, or some of the terminals may not be provided according to design requirements. As in some embodiments, the Type-C connector 11 may not be provided with four pairs of TX/RX terminals.

In one embodiment, as shown in fig. 4, a partial structural schematic diagram of the USB plug 12 is shown according to an exemplary embodiment. Fig. 5 is a schematic view of a part of the structure of the USB plug 12 according to another exemplary embodiment.

The USB plug 12 is typically a Type-a connector, which is the most widely used standard interface. The Type-a connector may also include a male port and a female port. The Type-A connector in the data line 10 is a USB plug 12 (male port), and the Type-A connector in the terminal equipment or the charger is a USB socket (female port).

As shown in fig. 4 and 5, the USB plug 12 includes a power supply terminal 121, a first signal terminal 122, a second signal terminal 123, and a ground terminal 124, which are arranged at intervals in this order. The power supply terminal 121 and the ground terminal 124 are located at both sides, and the first signal terminal 122 and the second signal terminal 123 are located in the middle.

Since the USB plug 12 supports hot-plug, i.e., hot-plug. To avoid damage to the terminal device caused by hot plugging of the USB plug 12, the power terminal 121 and the ground terminal 124 of the USB plug 12 are longer than the first signal terminal 122 and the second signal terminal 123. Thus, when the USB plug 12 is inserted into the USB socket, the power terminal 121 and the ground terminal 124 of the USB plug 12 are first contacted with the corresponding terminals of the USB socket, and then the first signal terminal 122 and the second signal terminal 123 of the USB plug 12 are contacted with the corresponding terminals of the USB socket, so that the power terminal 121 is ensured to be connected before the data terminal, and the occurrence of latch is prevented.

As further shown in fig. 4 and 5, the USB plug 12 further includes a power feedback terminal 125, and the power feedback terminal 125 is connected to the auxiliary terminal of the Type-C connector 11 to form a charging power feedback channel. Thus, the mobile phone connected with the Type-C connector 11 can feed back the received power received by the mobile phone to the device provided with the USB socket.

The device provided with the USB socket compares the power output by the device with the power received by the terminal device, thereby determining whether additional power loss occurs in the charging loop. When extra power loss occurs in the charging process, the short circuit and heat loss faults occur, and the equipment provided with the USB socket stops outputting power, so that a charging loop with the short circuit and heat loss faults is cut off, and fire disasters or personal safety and property loss caused by charging are avoided.

In some embodiments, as shown in fig. 5, a schematic structural diagram of the USB plug 12 is shown according to another exemplary embodiment. The USB plug 12 includes a fast charge terminal 126 in addition to the power feedback terminal 125. Fill terminal 126 soon and be connected with Type-C connector 11's CC terminal, form the protocol passageway that fills soon. And the quick-charging protocol channel is used for achieving a quick-charging protocol between the mobile phone and the charger through the quick-charging protocol channel when the data line 10 is connected with the terminal equipment and the power supply, and starting a quick-charging mode to charge the mobile phone in real time and quickly charge the mobile phone under the achieved quick-charging protocol.

As can be seen from the above, the connecting wire 13 is provided with a plurality of core wires, and the two ends of the core wires are respectively connected to the Type-C connector 11 and the terminals of the USB plug 12. Specifically, the two pairs of GND terminals of the Type-C connector 11 are connected to the ground terminal 124 of the USB plug 12 as one channel by one core wire in the connecting wire 13. The two pairs of VBUS terminals are connected as a channel to the power supply terminal 121 of the USB plug 12 through the other core wire in the connection wire 13. The D + terminal and the D-terminal in the Type-C connector 11 are respectively connected to the first signal terminal 122 and the second signal terminal 123 in the USB plug 12 through two separate wires in the connecting wire 13 as a channel.

Since the USB plug 12 is newly added with the power feedback terminal 125 and the fast charging terminal 126, the connecting wire 13 is further provided with a first core wire and a second core wire. The first core and the second core are independent of each other. Wherein, the first core is used for connecting the power feedback terminal 125 of the USB plug 12 and the auxiliary terminal of the Type-C connector 11, thereby forming a charging power feedback channel. The second core wire is used to connect the quick charge terminal 126 of the USB plug 12 and the CC terminal of the Type-C connector 11, thereby forming a quick charge protocol channel.

It should be noted that, when two pairs of GND terminals are used as one channel, one cable may be provided, or a plurality of cables may be provided, and a short circuit is provided between the plurality of cables. The number of cables in one channel is not limited herein.

In some embodiments, as further shown in fig. 4 and 5, the power feedback terminal 125 and/or the quick charge terminal 126 are aligned with a gap between at least two of the power supply terminal 121, the first signal terminal 122, the second signal terminal 123, and the ground terminal 124. Specifically, three gaps are provided between the power supply terminal 121, the first signal terminal 122, the second signal terminal 123, and the ground terminal 124. The outer ends of the power supply terminal 121 and the ground terminal 124 are each provided with one gap, and thus have five gaps.

In one embodiment, as shown in fig. 4, when the USB plug 12 is provided with only the power feedback terminal 125, the power feedback terminal 125 is aligned with the gap between the first signal terminal 122 and the second signal terminal 123. In one embodiment, as shown in fig. 5, when the USB plug 12 is provided with the power feedback terminal 125 and the quick charge terminal 126, the power feedback terminal 125 is aligned with a gap between the second signal terminal 123 and the ground terminal 124; the quick charge terminal 126 is aligned with a gap between the power supply terminal 121 and the first signal terminal 122.

It should be noted that, the positions of the power feedback terminal 125 and the fast charging terminal 126 are only exemplary, and are not used to limit the technical solution of the present disclosure. In some embodiments, when the USB plug 12 has only the power feedback terminal 125, the power feedback terminal 125 may be located in any one of the five gaps. When the USB plug 12 has both the power feedback terminal 125 and the fast charge terminal 126, the power feedback terminal 125 and the fast charge terminal 126 may be located in any two of the five gaps. Accordingly, the present disclosure does not limit the specific locations of the power feedback terminal 125 and the fast charge terminal 126.

As shown in fig. 4 and 5, the power supply terminal 121, the first signal terminal 122, the second signal terminal 123, and the ground terminal 124 are arranged side by side to form a first row of terminals, and the first row of terminals is provided near the outside of the USB plug 12. The power feedback terminals 125 and/or the quick charge terminals 126 are arranged side-by-side to form a second row of terminals that is disposed proximate the inside of the USB plug 12. Thus, the USB plug 12 provided in this embodiment can be connected to a USB socket conforming to the USB2.0 standard.

The above-mentioned structure has an advantage that when the USB plug 12 is inserted into the USB socket, firstly the power terminal 121 and the ground terminal 124 of the USB plug 12 are respectively contacted with the corresponding terminals in the USB socket, and secondly the first signal terminal 122 and the second signal terminal 123 of the USB plug 12 are contacted with the corresponding terminals in the USB socket, so that the power terminal 121 can be ensured to be connected before the data terminal, and the occurrence of latch-up can be prevented. Finally, the power feedback terminal 125 and the quick charging terminal 126 of the USB plug 12 are contacted with corresponding terminals in the USB socket.

In some embodiments, the USB plug 12 includes a plug outer frame 127 (shown in fig. 1 and 2) and a carrier body 128 (shown in fig. 4 and 5), and the carrier body 128 is an insulator. The power terminal 121, the first signal terminal 122, the second signal terminal 123, the ground terminal 124, the power feedback terminal 125 and/or the quick charging terminal 126 are fixed to the carrier body 128 by means of in-mold injection molding, so that the terminals and the carrier body 128 are integrated into a whole, and no gap exists between the terminals and the carrier body 128. As such, the present disclosure can prevent moisture, impurities, or the like from entering the inside of the structure of the USB plug 12 from the gap between the terminal and the bearing body 128, thereby causing a short circuit of the structure of the USB plug 12.

In some embodiments, as shown in fig. 4 and 5, the power feedback terminal 125 is an elastic metal sheet in a bent shape. Further, the quick charging terminal 126 may also be a bent elastic metal sheet. One end of the elastic metal sheet is fixed on the bearing body 128 by means of in-mold injection, and the other end is suspended in the direction away from the bearing body 128. When the power feedback terminal 125 contacts with the corresponding pin in the USB socket 22, the bent power feedback terminal 125 and the quick charging terminal 126 can form a certain contact pressure with the corresponding pin in the USB socket 22, thereby preventing the occurrence of communication interruption or poor communication quality caused by poor contact.

Based on the same concept, the embodiment of the present disclosure also provides a charger 20. The charger 20 is used in cooperation with the data line 10 described above. As shown in fig. 6, a charger 20 is shown according to an exemplary embodiment. As shown in fig. 7, a charger 20 is shown according to another exemplary embodiment. As shown in fig. 6 and 7, the charger 20 includes a housing 21 and at least one USB socket 22. The USB socket 22 is located inside the housing 21.

In some embodiments, multiple USB receptacles 22 may be provided within the housing 21 of one charger 20. Thus, one charger 20 can be simultaneously connected to a plurality of data lines 10.

Further, as shown in FIG. 8, a USB socket 22 is shown according to an exemplary embodiment. The USB socket 22 includes a socket housing 221, a socket receiving portion 222, and a spring piece 223. The socket receiving portion 222 is located inside the socket housing 221. The socket receiving portion 222 is made of an insulating material, as is the receiving body 128. When the USB plug 12 of the data cable 10 is plugged into the USB socket 22 of the charger 20, the plug outer frame 127 of the USB plug 12 is received in the socket outer frame 221 of the USB socket 22 and fixed by the elastic piece 223.

As shown in fig. 8, the socket supporting portion 222 is sequentially provided with a power pin 2221, a first signal pin 2222, a second signal pin 2223, and a ground pin 2224, which are arranged at intervals. The power pin 2221 and the ground pin 2224 are located at both sides, and the first signal pin 2222 and the second signal pin 2223 are located at the middle. In addition, the power pin 2221, the first signal pin 2222, the second signal pin 2223, and the ground pin 2224 in the socket receiving part 222 correspond to the positions of the power terminal 121, the first signal terminal 122, the second signal terminal 123, and the ground terminal 124 in the USB plug 12.

Since the USB socket 22 also supports hot-plugging (i.e., hot-plugging). To prevent the USB socket 22 from being damaged by hot plugging, the power pin 2221 and the ground pin 2224 of the USB socket 22 are longer than the first signaling pin 2222 and the second signaling pin 2223.

When the USB socket 22 is connected to the USB plug 12 in a plug manner, the power pin 2221 and the ground pin 2224 of the USB socket 22 are first contacted with the corresponding terminals of the USB plug 12, and then the first signal pin 2222 and the second signal pin 2223 of the USB socket 22 are contacted with the corresponding terminals of the USB plug 12, so that the power pin 2221 is ensured to be connected before the data pin, and the occurrence of latch is prevented.

As further shown in fig. 7 and fig. 8, in an embodiment, the socket carrier 222 is further provided with a power feedback pin 2225, and the power feedback pin 2225 is connected to the power feedback terminal 125 of the USB plug 12 in the data line 10 in a matching manner, for receiving the received power fed back by the terminal device. In one embodiment, the received power is used for receiving handset feedback.

The charger 20 compares its output power with the received power fed back from the handset to determine whether additional power loss occurs in the charging loop. When extra power loss occurs during the charging process, it indicates that a short circuit and a thermal loss fault occur, and the charger 20 stops outputting power, thereby cutting off the charging loop in which the short circuit and the thermal loss fault occur, and avoiding a fire hazard caused by charging or personal safety and property loss.

Further, a power output terminal and a control chip (not shown) are provided in the housing 21 of the charger 20.

When the charger 20 is communicated with the mobile phone through the data line 10, the power output end is connected with the USB plug 12 in the data line 10, and can output power to the mobile phone, that is, the power supply supplies power to the mobile phone through the charger 20 and the data line 10. In one embodiment, the power output may be a MOS transistor or a relay switch.

The control chip calculates the power difference value between the output power and the receiving power, and can monitor the receiving power fed back by the mobile phone in real time. When the power difference is larger than the preset difference, the control chip controls the power output end to stop outputting power, so that a charging loop is cut off, and fire or personal safety and property loss caused by charging are avoided.

Wherein the power difference may be a sum of the additional power loss and a preset difference. The preset difference is a normal power loss, which refers to a normal power loss generated when no short circuit or heat loss fault occurs in the charging loop, in other words, when no short circuit or heat loss fault occurs in the charging loop, the power difference should be less than or equal to the preset difference.

The preset difference value may be different according to the charging mode of the mobile phone and the resistance value of the charged data line 10.

Specifically, the charging modes of the mobile phone are divided into two types, namely, normal charging (i.e., slow charging) and fast charging. The difference between the normal charging and the fast charging is that the current and the voltage of the charging are different, i.e. the charging power is different.

The difference in charging power (difference in current) and the resistance value of the charged data line 10 causes the power loss generated in the data line 10 to be different. The power dissipated on data line 10 may be according to equation I ² R, where I is the charging current, R is the resistance of the data line 10, and both the charging current and the resistance of the data line 10 can be measured using a specialized measurement device.

However, the normal power loss value is within a small range regardless of whether the mobile phone is normally charged or rapidly charged or the difference in the resistance value of the data line 10 of the mobile phone. For example, when a handset is normally charged, the normal power loss is about 0.3-0.5W. When the mobile phone is charged quickly, the normal power loss is about 1.0-1.1W. That is, in the charging process of the mobile phone, if there is no short circuit or thermal loss fault in the charging loop, the normal power loss should be approximately within the range of 0.3-1.1W.

Further, the predetermined difference may be any specific value from 0.3 to 1.1W, or may be a range of values from 0.3 to 1.1W.

Therefore, when the mobile phone is charged after the charger 20 and the data line 10 are combined, the mobile phone feeds back the received power to the charger 20 in real time in the form of a data packet through the charging power feedback channel. After the control chip of the charger 20 receives the received power, the control chip calculates a power difference between the output power and the received power. When the power difference is greater than the preset difference, the control chip controls the power output end of the charger 20 to stop outputting power to the mobile phone, and the charging is finished. Therefore, the charging loop with short circuit and heat loss faults is cut off, and fire or personal safety and property loss caused by charging are avoided.

In some embodiments, the power output may be set to not reset automatically, requiring the user to remove the short circuit or thermal loss fault in the charging loop and then reconnect the charger 20 and data line 10 to continue recharging.

In one embodiment, as further shown in fig. 8, a quick fill pin 2226 is also provided on the socket carrier 222. The fast charging pin 2226 is connected to the fast charging terminal 126 of the USB plug 12 in the data line 10 in a matching manner, so as to enable the mobile phone and the charger 20 to achieve a fast charging protocol.

As further shown in fig. 8, the power feedback pin 2225 and/or the fast charge pin 2226 are aligned with a gap between at least two of the power pin 2221, the first signal pin 2222, the second signal pin 2223, and the ground pin 2224. Three gaps are provided between the power pin 2221, the first signal pin 2222, the second signal pin 2223, and the ground pin 2224. Two gaps are provided on the outer sides of the power pin 2221 and the ground pin 2224, so that there are five gaps in total.

In some embodiments, when the USB socket 22 has only the power feedback pin 2225, the power feedback pin 2225 may be located in any one of five gaps. In one embodiment, the power feedback pin 2225 is aligned with a gap between the first signal pin 2222 and the second signal pin 2223.

In some embodiments, when the USB plug 12 has both the power feedback terminal 125 and the fast charge terminal 126, the power feedback terminal 125 and the fast charge terminal 126 may be located in any two of the five gaps. In one embodiment, power feedback pin 2225 is aligned with a gap between second signal pin 2223 and ground pin 2224; the quick charge pin 2226 is aligned with the gap between the power pin 2221 and the first signal pin 2222.

It should be noted that, the positions of the power feedback pin 2225 and the fast charging pin 2226 are only exemplary and correspond to each other, and are not intended to limit the technical solution of the present disclosure. The specific locations of the power feedback terminal 125 and the fast charge terminal 126 are not limited by this disclosure.

As shown in fig. 8, the power pin 2221, the first signal pin 2222, the second signal pin 2223 and the ground pin 2224 form a first row of pins side by side, and the first row of pins is disposed near the inner side of the socket supporting portion 222; the power feedback pins 2225 and the fast fill pins 2226 are arranged side by side to form a second row of pins, which is located near the outside of the socket carrier 222. Thus, the USB socket 22 of the charger 20 provided in the present embodiment can be connected to the USB plug 12 conforming to the USB2.0 specification.

In one embodiment, power feedback pin 2225 is a flat sheet of metal. Further, the quick charge pin 2226 may be a flat metal sheet. The power feedback pin 2225 and the quick charge pin 2226 are fixed to the socket support portion 222 by means of in-mold injection molding. The power feedback terminal 125 and the quick charging terminal 126 in the USB plug 12 are bent, and the power feedback pin 2225 and the quick charging pin 2226 in the USB socket 22 are flat. Therefore, when the terminal in the USB plug 12 contacts with the pin in the USB socket 22, a certain contact pressure is formed, thereby preventing the occurrence of communication interruption or poor communication quality due to poor contact.

When the USB plug 12 is inserted into the USB socket 22, first, the power terminal 121 and the ground terminal 124 of the USB plug 12 are in contact with the power pin 2221 and the ground pin 2224 in the USB socket 22, respectively. Then, the first signal terminal 122 and the second signal terminal 123 of the USB plug 12 contact the first signal pin 2222 and the second signal pin 2223 of the USB socket 22, so that the power terminal 121 is ensured to be connected before the data terminal, and the occurrence of latch is prevented. Finally, the power feedback terminal 125 and the quick charging terminal 126 of the USB plug 12 are in contact with the power feedback pin 2225 and the quick charging pin 2226 in the USB socket 22.

According to the above structure of the present disclosure, the present disclosure has the following advantages: the USB plug 12 is provided with a power feedback terminal 125, and is connected to the auxiliary terminal of the Type-C connector 11, and a first core is separately provided in the connection line 13 to connect the power feedback terminal 125 and the auxiliary terminal, so as to form a charging power feedback channel.

Therefore, when the mobile phone is charged, the mobile phone feeds back the received power to the charger 20 through the charging power feedback channel, the control chip of the charger 20 calculates the power difference between the output power of the control chip and the received power of the mobile phone, and when the power difference is greater than the preset difference, extra power loss occurs in the charging loop. When extra power loss occurs in the charging loop, it indicates that short circuit and heat loss faults occur, and the control chip of the charger 20 controls the charger 20 to stop outputting power, so as to cut off the charging loop with short circuit and heat loss faults, and avoid fire hazard caused by charging or personal safety and property loss.

Based on the same conception, the embodiment of the disclosure also provides a charging assembly. The charging assembly includes the data line 10 and the charger 20 described above. The Type-C connector 11 of the data line 10 is connected with the terminal equipment in a plugging and unplugging manner; the USB socket 22 of the charger 20 is connected to the USB plug 12 of the data line 10.

When the terminal device is charged, the terminal device feeds back the received power to the charger 20 through the data line 10, the control chip of the charger 20 calculates a power difference value between the output power and the received power, and when the power difference value is larger than a preset difference value, the control chip controls the power output end to stop outputting the power.

Based on the same conception, the embodiment of the disclosure also provides a charging protection method. Fig. 9 is a flowchart illustrating a charging protection method according to an exemplary embodiment, where the charging protection method is used in the charger 20, as shown in fig. 9, and the charging protection method includes the following steps S1 to S3

In step S1, the output power is determined, and the received power received by the terminal device is monitored through the power feedback channel of the data line 10.

In step S2, a power difference between the output power and the received power is calculated.

In step S3, when the power difference is greater than the preset difference, the charger 20 is controlled to stop outputting power.

The detailed description of the functions implemented in the charge protection method in the above embodiments has been described in detail in the embodiments related to the apparatus, and will not be described in detail here.

It is understood that, in order to implement the above functions, the charging assembly provided by the embodiments of the present disclosure includes a corresponding hardware structure and/or software module for performing each function. The disclosed embodiments can be implemented in hardware or a combination of hardware and computer software, in combination with the exemplary elements and algorithm steps disclosed in the disclosed embodiments. Whether a function is performed in hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the subject matter of the embodiments of the present disclosure.

Fig. 10 is a block diagram illustrating an apparatus 800 for use with a charging assembly, according to an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 10, the apparatus 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communications component 816.

The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power component 806 provides power to the various components of device 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed state of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

It is understood that "a plurality" in this disclosure means two or more, and other words are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like, are used to describe various information and should not be limited by these terms. These terms are only used to distinguish one type of information from another, and do not indicate a particular order or degree of importance. Indeed, the terms "first," "second," etc. are used interchangeably throughout. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.

It will be further understood that, unless otherwise specified, "connected" includes direct connections between the two without the presence of other elements, as well as indirect connections between the two with the presence of other elements.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the scope of the appended claims.

Claims (15)

1. A data line, comprising:

the Type-C connector is connected with the terminal equipment in a plugging manner and comprises an auxiliary terminal;

the USB plug is connected with the USB socket in a plugging and unplugging manner and comprises a power feedback terminal;

the connecting wire is connected with the Type-C connector and the USB plug and comprises a first core wire;

the first core wire is connected with the auxiliary terminal and the power feedback terminal to form a charging power feedback channel;

and the terminal equipment feeds the received power back to the equipment provided with the USB socket through the charging power feedback channel.

2. The data line of claim 1,

the auxiliary terminal is SBU1 terminal or SBU2 terminal of Type-C connector.

3. The data line of claim 1 or 2, wherein the Type-C connector further comprises a CC terminal, the USB plug further comprises a quick-charge terminal, and the connection line further comprises a second core wire;

and the second core wire is connected with the CC terminal and the quick-charging terminal to form a quick-charging protocol channel.

4. The data line of claim 3, wherein the USB plug further comprises a power terminal, a first signal terminal, a second signal terminal and a ground terminal arranged at intervals;

the power feedback terminal and/or the quick charge terminal are aligned with a gap between at least two of the power terminal, the first signal terminal, the second signal terminal and the ground terminal.

5. The data line of claim 4,

the power feedback terminal is aligned with a gap between the second signal terminal and the ground terminal;

the quick-charging terminal is aligned with a gap between the power terminal and the first signal terminal.

6. The data line of claim 4 or 5,

the power terminal, the first signal terminal, the second signal terminal and the ground terminal form a first row of terminals side by side, and the first row of terminals is arranged close to the outer side of the USB plug;

the power feedback terminal and the quick charging terminal form a second row of terminals side by side, and the second row of terminals are close to the inner side of the USB plug.

7. The data line of claim 1,

the power feedback terminal is an elastic metal sheet in a bent shape.

8. A charger for use with the data line of any one of claims 1 to 7, the charger comprising a housing and a USB receptacle, the USB receptacle being located within the housing;

the USB socket includes: the power feedback pin is connected with a power feedback terminal of the USB plug in the data line in a matching manner, and receives the receiving power fed back by the terminal equipment;

the shell is internally provided with:

the power output end is connected with the USB plug in the data line and is used for outputting power;

and the control chip calculates a power difference value between the output power and the received power, and controls the power output end to stop outputting the power when the power difference value is larger than a preset difference value.

9. The charger according to claim 8, wherein a quick charging pin is further disposed on the socket carrying portion, and the quick charging pin is connected to a quick charging terminal of the USB plug in the data line in a matching manner, so as to achieve a quick charging protocol with a terminal device.

10. The charger according to claim 9, wherein the socket carrier is further provided with a power pin, a first signal pin, a second signal pin and a ground pin at intervals;

the power feedback pin and/or the fast charge pin are aligned with a gap between at least two of the power pin, the first signal pin, the second signal pin, and the ground pin.

11. The charger of claim 10,

the power feedback pin is aligned with a gap between the second signal pin and the ground pin;

the quick-charge pin is aligned with a gap between the power pin and the first signal pin.

12. The charger according to claim 10 or 11,

the power supply pin, the first signal pin, the second signal pin and the grounding pin form a first row of pins in parallel, and the first row of pins are arranged close to the inner side of the socket bearing part;

the power feedback pins and the quick charging pins form a second row of pins side by side, and the second row of pins are arranged close to the outer side of the socket bearing part.

13. The charger of claim 8,

the power feedback pin is a metal sheet in a flat plate shape.

14. A charging assembly, comprising:

the data line of any one of claims 1-7, the Type-C connector of the data line being plug connected to a terminal device;

the charger according to any one of claims 8 to 13, a USB socket of the charger being plug connected to the USB plug of the data line;

when the terminal equipment is charged, the terminal equipment feeds back received power to the charger through the data line, a control chip of the charger calculates a power difference value between output power and the received power, and when the power difference value is larger than a preset difference value, the control chip controls the power output end to stop outputting power.

15. A charging protection method is characterized in that a charger is applied, and the charging protection method comprises the following steps:

determining output power, and monitoring the received power received by the terminal equipment through a power feedback channel of a data line;

calculating a power difference between the output power and the received power;

and when the power difference value is larger than a preset difference value, controlling the charger to stop outputting power.

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