Charging device, charging wire, and charging system

Abstract

The embodiment of the utility model provides a charging device, a charging wire and a charging system. The charging device comprises a switch module, a control module and a power supply module. In the embodiment of the invention, a control module in the charging device is used for being in communication connection with to-be-charged equipment and receiving maximum allowable charging power, maximum allowable voltage and maximum allowable current output by the to-be-charged equipment; and then determining a proper charging protocol according to the maximum allowable charging power, the maximum allowable voltage and the maximum allowable current of the to-be-charged equipment. It can be understood that when the to-be-charged equipment is not matched with the charging adapters, the control module can select a relatively appropriate charging protocol from the charging adapters to charge the to-be-charged equipment, so that the charging adapters can still quickly charge the to-be-charged equipment, the charging efficiency is further improved, and finally, the use of a user is more convenient.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and in particular to a charging device, a charging cable and a charging system. Background Art

[0002] With the advent of the intelligent era, the continuous improvement of the performance of software and hardware has greatly increased the power consumption of related electronic devices. In order to improve the user experience and reduce the charging time of mobile electronic devices (such as mobile phones, POS machines, and razors, etc.), fast charging technology has emerged. Fast charging technology refers to the technology that increases the charging power within a reasonable range of charging, so that most of the power of mobile electronic devices can be quickly replenished.

[0003] Common fast charging protocols include PD charging protocol, QC charging protocol and FCP charging protocol, etc. In the prior art, the charging adapter and the device to be charged can realize fast charging of the device to be charged based on a certain same charging protocol.

[0004] However, with the increasing number of portable electronic devices in life, and the charging protocols and charging powers corresponding to different portable electronic devices are basically different, it is necessary to have a variety of charging adapters corresponding to portable electronic devices to power different electronic devices. When using an unmatched charging adapter to charge the device to be charged, the charging efficiency may be low, or even charging may not be possible, which is inconvenient for users.

[0005] It should be pointed out that the information disclosed in the background technology section of this application is only intended to deepen the understanding of the general background technology of this application, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to those skilled in the art. Utility Model Content

[0006] In view of this, the present application provides a charging device, a charging cable and a charging system to solve the problem in the prior art that when an unmatched charging adapter is used to charge a device to be charged, the charging efficiency may be low or even charging may not be possible, which is inconvenient for users.

[0007] In a first aspect, an embodiment of the present application provides a charging device, including:

[0008] A switch module, wherein a first end of the switch module is used to be electrically connected to a first end of a charging adapter, a second end of the switch module is used to be electrically connected to a first end of a device to be charged, and the switch module is used to disconnect or connect the communication connection between the charging adapter and the device to be charged;

[0009] A power module, wherein the first end of the power module is used to be electrically connected to the second end of the charging adapter, and the first end of the power module is used to receive the first power output by the second end of the charging adapter; the second end of the power module is used to be electrically connected to the second end of the device to be charged, and the second end of the power module is used to output the second power to the second end of the device to be charged;

[0010] Wherein, the power supply module includes an adjustment unit, and the adjustment unit is used to adjust the first power supply to the second power supply;

[0011] A control module, wherein a first end of the control module is electrically connected to a third end of the switch module, and is used to control the switch module to disconnect or conduct the communication connection between the charging adapter and the device to be charged; the control module is used to communicate with the device to be charged and receive the allowed power output by the device to be charged; the control module is used to communicate with the charging adapter and control the charging adapter to output the first power according to the target charging protocol; the second end of the control module is electrically connected to a third end of the power module, and is used to control the power module to convert the first power into the second power;

[0012] Specifically, the control module includes a switch control unit, a device power receiving unit, a charging protocol control unit and an output power adjustment unit; the switch control unit is electrically connected to the switch module, and the switch control unit is used to control the switch module to disconnect or conduct the communication connection between the charging adapter and the device to be charged; the device power receiving unit is communicatively connected to the device to be charged, and the device power receiving unit is used to receive the allowed power output by the device to be charged; the charging protocol control unit is communicatively connected to the charging adapter, and the charging protocol control unit is used to control the charging adapter to output the first power according to the corresponding target charging protocol; the output power adjustment unit is electrically connected to the adjustment unit, and the output power adjustment unit is used to control the adjustment unit to convert the first power into the second power.

[0013] In a possible implementation, the allowed power source of the device to be charged is the maximum allowed charging power, the maximum allowed voltage and the maximum allowed current of the device to be charged;

[0014] In addition, the target charging protocol matches the maximum allowable charging power and the charging adapter, the charging power of the first power supply is less than or equal to the maximum allowable charging power, the charging power of the second power supply is the same as the charging power of the first power supply, the charging voltage of the second power supply is less than or equal to the maximum allowable voltage, and the charging current of the second power supply is less than or equal to the maximum allowable charging current.

[0015] In an embodiment of the present application, a charging device is provided. Specifically, a control module in the charging device is used to communicate with the device to be charged, receive the maximum allowable charging power, maximum allowable voltage and maximum allowable current output by the device to be charged, and then determine a suitable charging protocol according to the maximum allowable charging power, maximum allowable voltage and maximum allowable current of the device to be charged. It can be understood that when the device to be charged does not match the charging adapter, the control module can select a relatively suitable charging protocol from the charging adapter to charge the device to be charged, so that the charging adapter can still quickly charge the device to be charged, thereby improving the charging efficiency, and ultimately making it more convenient for users to use.

[0016] The device to be charged described in this article and the mobile electronic device described above are used to express the same meaning.

[0017] In one possible implementation,

[0018] The device power receiving unit is communicatively connected with the device to be charged, including: the device power receiving unit is used to communicate with the device to be charged through the switch module;

[0019] The charging protocol control unit is communicatively connected with the charging adapter, including: the charging protocol control unit is used to communicate with the charging adapter through the switch module.

[0020] Specifically, the control module is used to communicate with the charging adapter through the first end of the switch module; the control module is used to communicate with the device to be charged through the second end of the switch module.

[0021] In the embodiment of the present application, the device power receiving unit and the charging protocol control unit in the control module can be respectively connected to the charging adapter and the device to be charged through the switch module. It can be understood that since the switch module is already connected to the device to be charged and the charging adapter, the device power receiving unit and the charging protocol control unit are connected to the charging adapter and the device to be charged respectively by means of the existing communication connection channel, which reduces the production cost of the charging device to a certain extent.

[0022] In a possible implementation, the control module further includes an interface module;

[0023] The interface module is used to be electrically connected to the charging adapter;

[0024] The charging protocol control unit is also used to communicate with the charging adapter through the interface module.

[0025] Specifically, the control module is also provided with a third end for electrically connecting to the third end of the charging adapter, and the control module is used to communicate with the charging adapter through the third end of the control module and the first end of the switch module. It can be understood that the third end of the control module is the interface module.

[0026] In the embodiment of the present application, since there are various charging protocols, there are also various matching methods for the corresponding charging protocols. Therefore, the third end of the control module can be electrically connected to the third end of the charging adapter, so that the control module can match the charging protocol through the third end of the control module and the first end of the switch module, thereby making the control module and the charging adapter match more charging protocols, which improves the versatility of the charging device to a certain extent.

[0027] In a possible implementation, the interface module includes a first interface module and a second interface module, and the first interface module and the second interface module are respectively used to communicate with the charging adapter.

[0028] Specifically, the third end of the control module includes a main protocol interface module and an extended protocol interface module, which are respectively used to communicate with the charging adapter. It can be understood that the main protocol interface module is the first interface module and the extended protocol interface module is the second interface module.

[0029] In the embodiment of the present application, the third end of the control module includes a main protocol interface module and an extended protocol interface module. It is understandable that the control module in the charging device retains enough interfaces for communication with the device to be charged, which can maintain sufficient buffer for future functional expansion.

[0030] In a possible implementation, the target charging protocol is a charging protocol that satisfies a first condition, wherein the first condition is: matching the charging adapter, and a difference between a corresponding charging power and the maximum allowable charging power is less than or equal to a preset power.

[0031] In the embodiment of the present application, when the difference between the charging power corresponding to the target charging protocol and the maximum allowable charging power is less than or equal to the preset power, the protocol that matches the charging adapter will be used as the target protocol. It is understandable that the control module can choose to charge the device to be charged with a power less than or equal to the maximum allowable charging power of the device to be charged, so that even if the device to be charged does not match the charging adapter, the charging adapter can charge the device to be charged, making it more convenient for users to use.

[0032] In a possible implementation, the target charging protocol is a charging protocol that satisfies a second condition, wherein the second condition is: matching the charging adapter and a difference between a corresponding charging power and the maximum allowable charging power is minimal.

[0033] In an embodiment of the present application, the charging protocol corresponding to the smallest difference between the charging power and the maximum allowable charging power is selected as the target protocol. While ensuring that the charging device can be charged, the charging power corresponding to the target protocol is also higher, thereby reducing the charging time and further facilitating the user.

[0034] In a possible implementation, the first end of the switch module includes:

[0035] A first DP port and a first DM port, the switch module is used to electrically connect to the DP port and the DM port of the charging adapter respectively through the first DP port and the first DM port.

[0036] In a possible implementation, the second end of the switch module includes:

[0037] A second DP port and a second DM port, the switch module is used to electrically connect to the DP port and the DM port of the device to be charged respectively through the second DP port and the second DM port.

[0038] In a possible implementation, the first interface module of the control module includes:

[0039] A first CC port and a second CC port, wherein the control module is used to electrically connect to the first CC port and the second CC port of the charging adapter respectively through the first CC port and the second CC port.

[0040] In a possible implementation, the second interface module of the control module includes:

[0041] A first SBU port and a second SBU port, wherein the control module is used to electrically connect to the first SBU and the second SBU of the charging adapter through the first SBU port and the second SBU port.

[0042] In a second aspect, the present application provides a charging cable compatible with multiple protocols, including:

[0043] A charging device as described in any one of the first aspects.

[0044] In a third aspect, the present application provides a charging system compatible with multiple protocols, including:

[0045] The charging device according to any one of the first aspects;

[0046] Equipment to be charged;

[0047] Charging adapter;

[0048] Wherein, the charging device is electrically connected to the device to be charged, and the charging device is electrically connected to the charging adapter.

[0049] It can be understood that the multi-protocol compatible charging cable provided in the second aspect includes the charging device provided in the present application, and the multi-protocol compatible charging system provided in the third aspect includes the multi-protocol compatible charging cable provided in the present application. Therefore, the beneficial effects that can be achieved in the second and third aspects can refer to the beneficial effects of the multi-protocol compatible charging device in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0051] Figure 1 A schematic diagram of an application scenario provided for an embodiment of the present application.

[0052] Figure 2 A schematic diagram of the structure of a multi-protocol compatible charging device provided in an embodiment of the present application.

[0053] Figure 3 A schematic diagram of the structure of another multi-protocol compatible charging device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0054] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0055] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0056] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0057] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0058] With the advent of the intelligent era, the continuous improvement of the performance of software and hardware has greatly increased the power consumption of related electronic devices. In order to improve the user experience and reduce the charging time of mobile electronic devices (such as mobile phones, POS machines, and razors, etc.), fast charging technology has emerged. Fast charging technology refers to the technology that increases the charging power within a reasonable range of charging, so that most of the power of mobile electronic devices can be quickly replenished.

[0059] To facilitate understanding, a specific application scenario is first exemplified below.

[0060] See also Figure 1 , is a schematic diagram of an application scenario provided by an embodiment of the present application. Figure 1 As shown, the application scenario includes: a device to be charged 101, a charging adapter 102 and a charging cable 103. The device to be charged 101 is electrically connected to the charging adapter 102 via the charging cable 103. During the charging process, the charging adapter 102 converts the external power supply into a charging power supply that matches the device to be charged 101, and finally realizes charging of the device to be charged.

[0061] Specifically, firstly, the plug of the charging adapter is connected to an external power source (such as AC power), and then, through the relevant fast charging protocol, the adapter converts the external power source and supplies power to the device to be charged through the charging cable.

[0062] in addition, Figure 1 The device to be charged 101 and the charging adapter 102 shown in the figure are only exemplary descriptions and should not be used as a limitation on the scope of protection of this application. For example, the device to be charged 101 includes but is not limited to mobile phones, printers, POS machines, shavers, and any other similar rechargeable devices; the charging adapter 102 includes but is not limited to charging heads corresponding to various charging protocols, etc.

[0063] Common fast charging protocols include PD charging protocol, QC charging protocol and FCP charging protocol. In the prior art, the charging adapter and the device to be charged need to be based on a certain same charging protocol to achieve fast charging of the device to be charged. Exemplarily, the charging adapter stores the PD charging protocol internally, and the maximum allowable charging power of the device to be charged is 20V / 5A. Therefore, the charging adapter charges the device to be charged according to the charging power allowed in the PD charging protocol (ie, 20V / 5A), and finally achieves fast charging of the device to be charged.

[0064] However, with the increasing number of portable electronic devices in life, and the charging protocols and charging powers corresponding to different portable electronic devices are basically different, it is necessary to have a variety of charging adapters corresponding to portable electronic devices to power different electronic devices. When the charging adapter is not the same as the portable electronic device, the charging adapter may not be able to quickly charge the portable electronic device. For example, the charging adapter has the PD charging protocol stored inside, and the maximum allowable charging power of the device to be charged is 21V / 5A, but the charging adapter cannot provide 21V / 5A charging power for the device to be charged based on the PD charging protocol, and ultimately cannot achieve fast charging of the device to be charged, which is inconvenient for users.

[0065] In response to the above problems, a charging device is provided in an embodiment of the present application. Specifically, the control module in the charging device is used to communicate with the device to be charged, receive the maximum allowable charging power, maximum allowable voltage and maximum allowable current output by the device to be charged, and then determine the appropriate charging protocol according to the maximum allowable charging power, maximum allowable voltage and maximum allowable current of the device to be charged. It is understandable that when the device to be charged does not match the charging adapter, the control module can select a relatively suitable charging protocol from the charging adapter to charge the device to be charged, so that the charging adapter can still quickly charge the device to be charged, thereby improving the charging efficiency, and ultimately making it more convenient for users to use. This is described in detail below in conjunction with the specific implementation method.

[0066] See also Figure 2 , is a schematic diagram of a multi-protocol compatible charging device provided in an embodiment of the present application. Figure 2 The figure also shows a charging adapter and a module to be charged, which are not specifically limited in this application. Figure 2As shown, the figure shows a charging adapter 201, a charging device 202, and a device to be charged 203. Among them, the charging device 202 specifically includes: a power module 2021, a control module 2022, and a switch module 2023. As shown in the figure, the third end of the switch module 2023 is electrically connected to the third end of the control module 2022; the second end of the control module 2022 is electrically connected to the third end of the power module 2021; the first end of the switch module 2023 is used to be electrically connected to the first end of the charging adapter 201, and the second end of the switch module 2023 is used to be electrically connected to the first end of the device to be charged 203; the first end of the power module 2021 is used to be electrically connected to the second end of the charging adapter 201, and the second end of the power module 2021 is used to be electrically connected to the second end of the device to be charged 203.

[0067] In an embodiment of the present application, the switch module is used to disconnect or connect the communication connection between the charging adapter and the device to be charged; the first end of the power module is used to receive the first power output by the second end of the charging adapter; the second end of the power module is used to output the second power to the second end of the device to be charged; the control module is used to control the switch module to connect or disconnect the communication connection between the charging adapter and the device to be charged; the control module is used to communicate with the device to be charged and receive the allowed power output by the device to be charged; the control module is used to communicate with the charging adapter and control the charging adapter to output the first power according to the target charging protocol; the control module is used to control the power module to convert the first power into the second power.

[0068] In a possible implementation, the allowed power supply of the device to be charged is the maximum allowed charging power, the maximum allowed voltage and the maximum allowed current of the device to be charged. Of course, it can also be any one or two of the maximum allowed charging power, the maximum allowed voltage and the maximum allowed current, or other physical quantities that can be characterized as the normal power supply of the device to be charged, and this application does not make specific restrictions on this.

[0069] Among them, the target charging protocol matches the maximum allowable charging power and the charging adapter, the charging power of the first power supply is less than or equal to the maximum allowable charging power, the charging power of the second power supply is the same as the charging power of the first power supply, the charging voltage of the second power supply is less than the maximum allowable voltage, and the charging current of the second power supply is less than the maximum allowable charging current.

[0070] Specifically, the control module first establishes a communication connection with the device to be charged to receive the maximum allowable charging power, maximum allowable voltage and maximum allowable current output by the device to be charged; then, the control module establishes a communication connection with the charging adapter to match the charging protocol and determine one or more charging protocols; then, the control module determines a target charging protocol from one or more charging protocols according to the maximum allowable charging power; finally, the control module controls the power module and the switch module so that the charging adapter can power the device to be charged according to the target charging protocol.

[0071] It should be noted that a variety of fast charging protocols are pre-stored in the control module. For example, the control module pre-stores the PD charging protocol, QC charging protocol, AFC charging protocol, and PFC charging protocol. Of course, the charging adapter includes one or more fast charging protocols. It is understandable that the "charging protocol matching" mentioned above refers to determining the same charging protocol between the control module and the charging adapter.

[0072] Exemplarily, the charging protocols stored inside the control module include the PD charging protocol, the QC charging protocol and the FCP charging protocol, the charging protocols allowed by the charging adapter are the PD charging protocol, the QC charging protocol and the VOOC charging protocol, and after matching the charging protocols of the control module and the charging adapter, the determined charging protocols are the PD charging protocol and the QC charging protocol.

[0073] It can be understood that the "control module determines the target charging protocol from one or more charging protocols according to the maximum allowable charging power" mentioned above means comparing the charging power corresponding to the one or more charging protocols obtained after matching with the maximum allowable charging power corresponding to the device to be charged, and taking the charging protocol whose corresponding charging power among one or more charging protocols is less than the maximum allowable charging power as the target charging protocol.

[0074] For ease of understanding, the switch module, the power module and the control module in the charging device will be introduced separately below.

[0075] First, in an embodiment of the present application, the switch module is used to disconnect or conduct the communication connection between the charging adapter and the device to be charged. It is understandable that when the charging adapter supplies power to the device end according to the target charging protocol, the charging adapter also needs to exchange information with the device to be charged. Exemplarily, the charging adapter will obtain the temperature and battery charge of the battery in the device to be charged, so that the device to be charged can reduce the charging power according to the target charging protocol, or adjust the charging mode (constant voltage charging, constant current charging or trickle charging, etc.).

[0076] Of course, the on and off of the switch module is controlled by the control module. It can be understood that when the control module controls the charging adapter to supply power to the device to be charged according to the target charging protocol, the control module controls the switch module to conduct the communication connection between the charging adapter and the device to be charged, so that the charging adapter and the device to be charged can exchange information according to the target communication protocol.

[0077] Specifically, the control module also includes a switch control unit, which is electrically connected to the switch module. The switch control unit is used to control the switch module to disconnect or connect the communication connection between the charging adapter and the device to be charged.

[0078] Secondly, in an embodiment of the present application, the first end of the power module is used to receive the first power output by the second end of the charging adapter, and the second end of the power module is used to output the second power to the second end of the device to be charged. Among them, the power module includes an adjustment unit, and the adjustment unit is used to adjust the first power to the second power. It can be understood that, under the situation of ensuring that the charging power of the first power remains unchanged, the adjustment unit can adjust the voltage value and current value of the first power, and output the second power, so that the charging voltage of the second power is less than the maximum allowable charging voltage of the device to be charged, and the charging current of the second power is less than or equal to the maximum allowable charging current of the device to be charged.

[0079] Of course, the control module also includes an output power adjustment unit, which is electrically connected to the adjustment unit in the power module. Specifically, the output power adjustment unit is used to control the adjustment unit to convert the first power supply into the second power supply.

[0080] Exemplarily, the maximum allowable charging power of the device to be charged is 20V / 6A, the maximum allowable charging voltage of the device to be charged is 21V, and the maximum allowable charging current of the device to be charged is 5A. When the first end of the power module receives the first power output of the second end of the charging adapter as 24V / 5A, since 24V>20V, that is, the voltage value of the first power supply is greater than the maximum allowable voltage of the device to be charged, the adjustment unit can adjust the voltage value of the first power supply to 20V, adjust the current value of the first power supply to 6A, and output the second power supply of 20V / 6A at the second end of the power module to power the device to be charged; similarly, when the first end of the power module receives the first power output of the second end of the charging adapter as 22V / 5A, since 22V>20V, that is, the voltage value of the first power supply is greater than the maximum allowable voltage of the device to be charged, The adjustment unit can adjust the voltage value of the first power supply to 20V, adjust the current value of the first power supply to 5.5A, and output a second power supply of 20V / 5.5A at the second end of the power module to power the device to be charged; similarly, when the first end of the power module receives the first power supply output by the second end of the charging adapter as 15V / 8A, since 8A>6A, that is, the current value of the first power supply is greater than the maximum allowable current of the device to be charged, the adjustment unit can adjust the current value of the first power supply to 6A, adjust the voltage value of the first power supply to 20V, and output a second power supply of 20V / 6A at the second end of the power module to power the device to be charged.

[0081] Finally, in an embodiment of the present application, the control module is used to obtain the allowed power of the device to be charged. Specifically, the control module includes a device power receiving unit. The control module is connected to the device to be charged by communication, that is, the device power receiving unit is connected to the device to be charged by communication, and then obtains the allowed power on the device to be charged.

[0082] In a possible implementation, after the control module establishes a communication connection with the device to be charged, the control module first performs security authentication with the device to be charged. Only after the control module and the device to be charged pass the security authentication, the control module can obtain the permitted power supply of the device to be charged.

[0083] In a possible implementation, when the control module fails to pass the safety authentication with the device to be charged, the control module cannot obtain the permitted power supply of the device to be charged. At this time, the charging adapter cannot quickly charge the device to be charged, and the control module controls the charging adapter to supply power to the device to be charged at a lower charging power (much less than the maximum permitted charging power), such as 5V / 500mA. Of course, those skilled in the art can also design the control module to disconnect the connection between the device to be charged and the charging adapter when the control module fails to pass the safety authentication with the device to be charged according to actual needs, and this application does not make specific restrictions on this.

[0084] Regarding the communication connection between the device power receiving unit and the device to be charged described above, in a possible implementation, the device power receiving unit is communicatively connected to the device to be charged via the second end of the switch module.

[0085] In an embodiment of the present application, when obtaining the maximum allowable charging power, maximum allowable voltage and maximum allowable current of the device to be charged, the device power receiving unit can obtain the maximum allowable charging power, maximum allowable voltage and maximum allowable current of the device to be charged through the second end of the switch module. With the help of the existing communication connection channel, the maximum allowable charging power, maximum allowable voltage and maximum allowable current of the device to be charged are obtained. It can be understood that since there is no need to increase the communication connection between the device power receiving unit and the device to be charged, but the existing communication connection line is used, the production cost of the charging device is reduced to a certain extent.

[0086] In an embodiment of the present application, the control module is also used to communicate with the charging adapter to determine the target communication protocol. Specifically, the control module also includes a charging protocol control unit. It is understood that the control module is connected to the charging adapter in communication, that is, the charging protocol control unit is connected to the charging adapter in communication to output a verification signal corresponding to the charging protocol to the charging adapter. When the charging protocol is stored in the charging adapter, the charging adapter feeds back a verification pass signal to the charging protocol control unit; when the charging protocol is not stored in the charging adapter, the charging adapter feeds back a verification failure signal to the charging protocol control unit. It is understood that after verifying the charging protocols in the control module one by one, the charging protocol matching the charging adapter is determined. Then, according to comparing the charging power corresponding to the charging protocol matching the charging adapter with the maximum allowable charging power of the device to be charged, the charging protocol corresponding to the maximum allowable charging power is taken as the target charging protocol. It is understood that each charging protocol may allow multiple charging powers, as long as there is a charging power less than or equal to the maximum allowable charging power of the device to be charged in the charging power corresponding to the charging protocol, the charging protocol is the target charging protocol. It can be understood that after the target charging protocol is determined, the charging protocol control unit controls the charging adapter to output the first power to the power module according to the corresponding target charging protocol.

[0087] Regarding the communication connection between the charging protocol control unit and the charging adapter described above, in a possible implementation, the charging protocol control unit is communicatively connected to the charging adapter via the first end of the switch module.

[0088] In an embodiment of the present application, when performing protocol matching, the charging protocol control unit can communicate with the charging adapter through the first end of the switch module to match the charging protocol between the control module and the charging adapter. The charging protocol is matched with the help of the existing communication connection channel. It can be understood that since there is no need to increase the communication connection between the control module and the charging adapter, but to use the existing communication connection line, the production cost of the charging device is reduced to a certain extent.

[0089] Of course, in a possible implementation, the control module further includes an interface module, wherein the interface module is used to be electrically connected to the charging adapter. It can be understood that the interface module is the third end of the control module, and specifically, the third end of the control module is electrically connected to the third end of the charging adapter, so that the control module can be communicated with the charging adapter through the third end of the control module and the first end of the switch module.

[0090] It should be pointed out that the communication connection with the charging adapter can also be established only by relying on the third terminal of the control module, and this application does not impose any specific restrictions on this.

[0091] In the embodiment of the present application, since there are various charging protocols, there are also various matching methods for the corresponding charging protocols. Therefore, the third end of the control module can be electrically connected to the third end of the charging adapter, so that the control module can match the charging protocol through the third end of the control module and the first end of the switch module, thereby making the control module and the charging adapter match more charging protocols, which improves the versatility of the charging device to a certain extent.

[0092] In a possible implementation, the interface module includes a first interface module and a second interface module, and the first interface module and the second interface module are respectively used to communicate with the charging adapter.

[0093] Specifically, the third end of the control module includes a main protocol interface module and an extended protocol interface module, which are respectively used to communicate with the charging adapter. It can be understood that the main protocol interface module is the first interface module and the extended protocol interface module is the second interface module.

[0094] In the embodiment of the present application, the third end of the control module includes a main protocol interface module and an extended protocol interface module. It is understandable that the control module in the charging device retains enough interfaces for communication with the device to be charged, which can maintain sufficient buffer for future functional expansion.

[0095] In a possible implementation, the above-mentioned "taking the charging protocol corresponding to the maximum allowable charging power as the target charging protocol" can be specifically understood as taking the charging protocol that meets the first condition among the charging protocols matched with the charging adapter as the target charging protocol. Among them, the first condition is to match the charging adapter, and the difference between the corresponding charging power and the maximum allowable charging power is less than or equal to the preset power. It can be understood that the corresponding charging power is less than or equal to the maximum allowable charging power.

[0096] Specifically, multiple charging protocols that match the charging adapter are first determined, and then the maximum allowable charging power is subtracted from the charging power corresponding to the multiple determined charging protocols to determine the difference between the charging power corresponding to each charging protocol and the maximum allowable charging power. When the difference between the charging power corresponding to the charging protocol and the maximum allowable charging power is less than or equal to the preset power, the charging protocol can be used as the target charging protocol.

[0097] In the embodiment of the present application, when the difference between the charging power corresponding to the target charging protocol and the maximum allowable charging power is less than or equal to the preset power, the protocol that matches the charging adapter will be used as the target protocol. It is understandable that the control module can choose to charge the device to be charged with a power less than or equal to the maximum allowable charging power of the device to be charged, so that even if the device to be charged does not match the charging adapter, the charging adapter can charge the device to be charged, making it more convenient for users to use.

[0098] Furthermore, in a possible implementation, the charging protocol that meets the second condition among the charging protocols that match the charging adapter is used as the target charging protocol, wherein the second condition is that the charging protocol matches the charging adapter and the difference between the corresponding charging power and the maximum allowable charging power is the smallest. It can be understood that the corresponding charging power is less than or equal to the maximum allowable charging power.

[0099] Specifically, the difference between the charging power corresponding to each charging protocol and the maximum allowed charging power is first determined, and then the charging protocol corresponding to the minimum difference is used as the target charging protocol.

[0100] In an embodiment of the present application, the charging protocol corresponding to the smallest difference between the charging power and the maximum allowable charging power is selected as the target protocol. While ensuring that the charging device can be charged, the charging power corresponding to the target protocol is also higher, thereby reducing the charging time and further facilitating the user.

[0101] In an embodiment of the present application, a charging device is provided. Specifically, a control module in the charging device is used to communicate with the device to be charged, receive the maximum allowable charging power, maximum allowable voltage and maximum allowable current output by the device to be charged, and then determine a suitable charging protocol according to the maximum allowable charging power, maximum allowable voltage and maximum allowable current of the device to be charged. It can be understood that when the device to be charged does not match the charging adapter, the control module can select a relatively suitable charging protocol from the charging adapter to charge the device to be charged, so that the charging adapter can still quickly charge the device to be charged, thereby improving the charging efficiency, and ultimately making it more convenient for users to use.

[0102] In a possible implementation, the first end of the switch module includes: a first DP port and a first DM port. It can be understood that the first end of the switch module described above is used to electrically connect to the first end of the charging adapter, specifically, the switch module is used to electrically connect to the DP port and the DM port of the charging adapter through the first DP port and the first DM port, respectively.

[0103] Among them, “DP” and “DM” are terminals in the charging device, namely, a data negative signal (Data Minus, DM) and a data positive signal (Data Positive, DP).

[0104] For example, when the control module and the charging adapter need to match the QC charging protocol, the control module will output a voltage of 0.6V at the first DP port through the switch module. At this time, the charging adapter will detect whether it supports the QC charging protocol. When the charging adapter detects that it supports the QC charging protocol, it will disconnect the DP port and DM port of the charging adapter from the switch module.

[0105] In a possible implementation, the second end of the control module includes: a second DP port and a second DM port. It can be understood that the second end of the switch module described above is used to electrically connect to the first end of the device to be charged, specifically, the switch module is used to electrically connect to the DP port and DM port of the device to be charged through the second DP port and the second DM port, respectively.

[0106] In a possible implementation, the first interface module of the control module, that is, the third end of the control module includes: a first CC port and a second CC port. It can be understood that the third end of the switch module described above is used to electrically connect to the third end of the charging adapter, specifically, the switch module is used to electrically connect to the first CC port and the second CC port of the charging adapter through the first CC port and the second CC port, respectively.

[0107] Among them, "CC" refers to the terminal in the charging device, that is, the configuration channel (Data Minus, DM).

[0108] For example, when the control module and the charging adapter need to match the PD charging protocol, the control module will configure the first CC port and the second CC port to the pull-down mode. At this time, the charging adapter will detect whether it supports the PD charging protocol. When the charging adapter detects that it supports the PD charging protocol, it will send an instruction to support the PD charging protocol to the control module.

[0109] In a possible implementation, the first end of the power module includes: a first Vbus port; the second end of the power module includes: a second Vbus port.

[0110] Herein, “Vbus” refers to a terminal in the charging device, namely, a voltage bus (Vbus).

[0111] In a possible implementation, the second interface module of the control module, i.e., the third end, further includes: a first SBU port and a second SBU port, and the control module is used to electrically connect to the first SBU and the second SBU of the charging adapter through the first SBU port and the second SBU port. It can be understood that by adding a port on the third end, more protocols can be matched between the control module and the charging adapter, which ultimately makes it convenient and practical for users and improves user satisfaction.

[0112] Among them, "SBU" refers to the terminal in the charging device, that is, the sideband channel (Sideband Use Wi re, SBU).

[0113] For ease of understanding, Figure 2 Based on the above, the present application also provides a schematic diagram of a charging device in which the first end of the switch module, the second end of the switch module and the third end of the control module are replaced by a specific port. Figure 3 , which is a structural diagram of another multi-protocol compatible charging device provided in an embodiment of the present application. As shown in the figure, the first end of the switch module includes: a first DP port DP1 and a first DM port DM1; the second end of the switch module includes: a second DP port DP2 and a second DM port DM2; the first end of the power module includes: a first Vbus port Vbus1; the second end of the power module includes: a second Vbus port Vbus2; the third end of the control module includes: a first CC port CC1 and a second CC port CC2; the third end of the control module also includes: a first SBU port SUB1 and a second SBU port SUB2. Among them, regarding the specific functions of the ports, refer to the above embodiments. For the sake of simplicity, this application will not elaborate on this.

[0114] Corresponding to the above embodiment, the present application also provides a charging cable. The charging cable includes the charging device, input end and output end described above. The input end includes a first end of a switch module and a first end of a power module, and the output end includes a second end of the switch module and a second end of the power module.

[0115] In a possible implementation manner, the input end also includes a third end of the control module.

[0116] It is understandable that the charging cable can be used to implement the specific functions of the embodiments described above. For the sake of brevity, this application does not elaborate on this.

[0117] In a specific implementation, the present application also provides a charging system compatible with multiple protocols. The charging system compatible with multiple protocols includes: a device to be charged, a charging adapter, and a charging cable. The input end of the device to be charged includes a first end of the device to be charged and a second end of the charging device; the output end of the charging adapter includes a first end of the charging adapter and a second end of the adapter; the output end of the charging adapter is electrically connected to the input end of the charging cable, and the input end of the device to be charged is electrically connected to the output end of the charging cable. For the sake of brevity, this application does not elaborate on this.

[0118] In the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0119] Those of ordinary skill in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented in a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0120] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0121] In several embodiments provided in the present application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0122] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

Claims

1. A charging device, characterized in that: include: A switch module, the switch module is used to disconnect or connect the communication connection between the charging adapter and the device to be charged; A power module, the power module comprising an adjustment unit, the adjustment unit being used to adjust a first power source to a second power source, wherein the first power source is an output power source of the charging adapter received by the power module, and the second power source is an input power source of the device to be charged output by the power module; A control module, the control module includes a switch control unit, a device power receiving unit, a charging protocol control unit and an output power adjustment unit; the switch control unit is electrically connected to the switch module, and the switch control unit is used to control the switch module to disconnect or conduct the communication connection between the charging adapter and the device to be charged; the device power receiving unit is communicatively connected to the device to be charged, and the device power receiving unit is used to receive the allowed power output by the device to be charged; the charging protocol control unit is communicatively connected to the charging adapter, and the charging protocol control unit is used to control the charging adapter to output the first power according to the corresponding target charging protocol; the output power adjustment unit is electrically connected to the adjustment unit, and the output power adjustment unit is used to control the adjustment unit to convert the first power into the second power.

2. The charging device according to claim 1, characterized in that: The device power receiving unit is communicatively connected with the device to be charged, including: the device power receiving unit is used to communicate with the device to be charged through the switch module; The charging protocol control unit is communicatively connected with the charging adapter, including: the charging protocol control unit is used to communicate with the charging adapter through the switch module.

3. The charging device according to claim 2, characterized in that: The control module also includes an interface module; The interface module is used to be electrically connected to the charging adapter; The charging protocol control unit is also used to communicate with the charging adapter through the interface module.

4. The charging device according to claim 3, characterized in that: The interface module includes a first interface module and a second interface module, and the first interface module and the second interface module are respectively used for communication connection with the charging adapter.

5. The charging device according to claim 1, characterized in that: The switch module comprises: A first DP port and a first DM port, the switch module is used to electrically connect to the DP port and the DM port of the charging adapter respectively through the first DP port and the first DM port.

6. The charging device according to claim 5, characterized in that: The switch module further includes: A second DP port and a second DM port, the switch module is used to electrically connect to the DP port and the DM port of the device to be charged respectively through the second DP port and the second DM port.

7. The charging device according to claim 4, characterized in that: The first interface module includes: A first CC port and a second CC port, wherein the first interface module is used to electrically connect to the first CC port and the second CC port of the charging adapter respectively through the first CC port and the second CC port.

8. The charging device according to claim 7, characterized in that: The second interface module includes: A first SBU port and a second SBU port, wherein the second interface module is used to electrically connect to the first SBU and the second SBU of the charging adapter through the first SBU port and the second SBU port.

9. A charging cable, characterized in that: include: A charging device as claimed in any one of claims 1 to 8.

10. A charging system, characterized in that: include: The charging device according to any one of claims 1 to 8; Equipment to be charged; Charging adapter; Wherein, the charging device is electrically connected to the device to be charged, and the charging device is electrically connected to the charging adapter.

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