Charging energy efficiency management system and visual device

Abstract

The invention relates to a charging energy efficiency management system and visual equipment, and the system comprises a charging management module which is used for controlling an external power supply to charge a built-in power supply when a charging interface is connected with the external power supply; the electric quantity detection module is respectively connected with the built-in power supply and the low-power-consumption control module and is used for detecting the real-time electric quantity of the built-in power supply and transmitting the real-time electric quantity to the low-power-consumption control module; the low-power-consumption control module is connected with the main control module and the charging management module and used for controlling the main control module to be in a power-off state when the real-time electric quantity reaches a preset first electric quantity threshold value; and the charging interface is controlled to be in an open-circuit state through the charging management module. Through the charging method and the charging device, the problems that the charging energy efficiency is low and the charging energy consumption requirement is not met in the prior art are solved, the energy loss is reduced, the charging energy efficiency is improved, and the charging energy consumption requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of visual equipment, and in particular to a charging energy efficiency management system and a visual equipment. Background Art

[0002] With the rapid growth of the consumer electronics market, the demand for related visual equipment products is becoming stronger and stronger. The endurance, energy loss, energy-saving measures and other indicators of visual equipment have become the focus of increasing attention of consumers. Current visual equipment tends to be miniaturized, but there is no management in terms of charging energy efficiency; during the charging process, there are problems such as overcharging and long-term power consumption, resulting in low charging efficiency and failure to meet charging energy consumption requirements.

[0003] With regard to the problem of low charging efficiency and failure to meet charging energy consumption requirements in related technologies, no effective solution has been proposed so far. Summary of the invention

[0004] In view of this, it is necessary to provide a charging energy efficiency management system and visual equipment to at least solve the problem of low charging energy efficiency and failure to meet charging energy consumption requirements in related technologies.

[0005] In a first aspect, the present invention provides a charging energy efficiency management system, comprising: a charging interface, a charging management module, a low power consumption control module, a main control module, a power detection module and a built-in power supply;

[0006] The charging management module is used to control the external power supply to charge the built-in power supply when the charging interface is connected to the external power supply;

[0007] The power detection module is connected to the built-in power supply and the low power consumption control module respectively, and is used to detect the real-time power of the built-in power supply and transmit the real-time power to the low power consumption control module;

[0008] The low-power control module is connected to the main control module and the charging management module respectively, and is used to control the main control module to be in a power-off state when the real-time power reaches a preset first power threshold; and control the charging interface to be in a circuit-breaking state through the charging management module.

[0009] In one of the embodiments, the low power consumption control module is further used to pull up the power control signal through a preset timing standard when the charging interface is connected to an external power supply, so as to control the main control module to be in a low power consumption working state.

[0010] In one of the embodiments, the low power consumption control module is also used to control the charging interface to be in a pass state through the charging management module when the circuit is lower than a preset second power threshold, and simultaneously pull up the power control signal to continue charging the built-in power supply at a low power level.

[0011] In one of the embodiments, the charging management module is also used to convert the first signal into a second signal when the charging interface is connected to an external power supply and a power-on signal is detected; at the same time, the low-power control module, under the power-on signal, pulls up the power control signal through a preset timing standard to control the main control module to be in a normal working state; the first signal is the power supply signal of the external power supply; the second signal is the control signal of the main control power supply circuit in the charging management module.

[0012] In one of the embodiments, the charging management module is also used to convert the third signal into the second signal when the charging interface is not connected to an external power supply and a power-on signal is detected; at the same time, the low-power control module, under the power-on signal, pulls up the power control signal through a preset timing standard to control the main control module to be in a normal working state; the third signal is the power supply signal of the built-in power supply; and the second signal is the control signal of the main control power supply circuit in the charging management module.

[0013] In one of the embodiments, the low power consumption control module includes a low power consumption control chip and a power gating circuit;

[0014] The power gating circuit is connected to the low power consumption control chip and is used to output a gating signal to the low power consumption control chip;

[0015] The low power consumption control chip is connected to the main control module and the charging management module respectively, and is used to generate a power enable signal according to the selection signal.

[0016] In one of the embodiments, the power gating circuit includes a voltage regulator and a power gating unit;

[0017] The power supply gating unit is connected to the voltage stabilizer and is used to output a gating signal through the voltage stabilizer.

[0018] In one of the embodiments, the charging management module includes a charging management chip, a switch unit and a main control power supply circuit;

[0019] The charging management chip is connected to the main control power supply circuit and the built-in power supply respectively through the switch unit, and is used to switch the power supply of the external power supply and the built-in power supply through the switch unit;

[0020] The charging management chip is also connected to the low power consumption processing module to transmit the switching signal of the switching unit to the low power consumption processing module.

[0021] In one embodiment, the switch unit is composed of a transistor, a capacitor and an inductor.

[0022] In a second aspect, an embodiment of the present application provides a visual device, comprising a charging energy efficiency management system as described in the first aspect above.

[0023] Compared with the related art, the charging energy efficiency management system and the visual device provided in this embodiment include a charging interface, a charging management module, a low-power control module, a main control module, a power detection module and a built-in power supply; the charging management module is used to control the external power supply to charge the built-in power supply when the charging interface is connected to the external power supply; the power detection module is connected to the built-in power supply and the low-power control module respectively, and is used to detect the real-time power of the built-in power supply and transmit the real-time power to the low-power control module; the low-power control module is connected to the main control module and the charging management module respectively, and is used to control the main control module to be in a power-off state when the real-time power reaches a preset first power threshold; and the charging interface is controlled to be in an open circuit state through the charging management module; the problem of low charging energy efficiency and failure to meet the charging energy consumption requirements in the related art is solved, and the charging interface is disconnected in time after being fully charged, and the main control module is controlled to be in a power-off state to reduce energy loss, improve charging energy efficiency, and thus meet the charging energy consumption requirements.

[0024] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A structural block diagram of a charging energy efficiency management system provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the circuit structure of a low power consumption control module provided by an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the circuit structure of a power gating circuit provided in one embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the circuit structure of a charging management module provided in one embodiment of the present invention.

[0029] In the figure: 10, charging management module; 11, charging management chip; 12, switch unit; 13, main control power supply circuit; 20, low power control module; 21, low power control chip; 22, power gating circuit; 221, power gating unit; 30, main control module; 40, power detection module; 50, built-in power supply. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed in the present application, some changes such as design, manufacturing or production based on the technical contents disclosed in the present application are only conventional technical means, and should not be understood as insufficient contents disclosed in the present application.

[0031] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0032] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. In this application, when an element is referred to as "provided on" another element, it can be directly provided on the other element or there can also be a centered element. When an element is considered to be "provided on" another element, it can be directly provided on the other element or there can be a centered element at the same time. When an element is considered to be "fixed on" another element, it can be directly fixed on the other element or there can be a centered element at the same time. The terms "first", "second", "third" and the like involved in this application are merely used to distinguish similar objects and do not represent a specific ordering of objects. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] See also Figure 1, the present invention provides a charging energy efficiency management system, including a charging interface, a charging management module 10, a low power consumption control module 20, a main control module 30, a power detection module 40 and a built-in power supply 50;

[0034] The charging management module 10 is used to control the external power supply to charge the built-in power supply 50 when the charging interface is connected to the external power supply;

[0035] The power detection module 40 is connected to the built-in power supply 50 and the low power consumption control module 20 respectively, and is used to detect the real-time power of the built-in power supply 50 and transmit the real-time power to the low power consumption control module 20;

[0036] The low power consumption control module 20 is connected to the main control module 30 and the charging management module 10 respectively, and is used to control the main control module 30 to be in a power-off state when the real-time power reaches a preset first power threshold; and control the charging interface to be in an open circuit state through the charging management module 10.

[0037] Specifically, the charging energy efficiency management system can be a part of managing visual devices, mainly used to manage the charging energy efficiency of visual devices, thereby reducing energy loss during charging, improving charging energy efficiency, and thus meeting charging energy consumption requirements. The charging energy efficiency management system includes a charging interface, a charging management module 10, a low power control module 20, a main control module 30, a power detection module 40, and a built-in power supply 50.

[0038] Among them, the charging interface supports multiple types, including but not limited to Type-A charging interface, Type-B charging interface, Type-C charging interface, miniUSB charging interface, microUSB charging interface, etc., and there is no restriction on this. The charging energy efficiency management system can detect whether the charging interface is connected to an external power supply; the charging management module 10 is used to control the external power supply to charge the built-in power supply 50 when the charging interface is connected to an external power supply, thereby realizing the plug-and-play function and quickly charging the built-in power supply 50. Among them, the detection of the access of the external power supply can be achieved by the charging management module 10, the low power control module 20 or the power detection module 40, and there is no restriction on this.

[0039] Among them, the power detection module 40 is mainly used to detect the real-time power of the built-in power supply 50 in real time, so as to accurately obtain the real-time power of the built-in power supply 50 during the charging process. Among them, the first power threshold is pre-set, which can be considered as the power when the built-in power supply 50 reaches full charge, which is determined by the battery capacity of the built-in power supply 50 and is not restricted. When the real-time power reaches the preset first power threshold, it is considered that the built-in power supply 50 is fully charged. At this time, the control main control module 30 is in a power-off state, thereby reducing the loss of unnecessary energy; and the charging interface is controlled to be in an open circuit state through the charging management module 10, directly disconnecting the charging from the source, thereby improving the battery life.

[0040] In the related technology, visual equipment has no management in terms of charging energy efficiency; during the charging process, there are problems such as overcharging and long-term power consumption, which leads to low charging efficiency and does not meet the charging energy consumption requirements. The energy efficiency management system of this embodiment includes a charging interface, a charging management module 10, a low-power control module 20, a main control module 30, a power detection module 40 and a built-in power supply 50; the charging management module 10 is used to control the external power supply to charge the built-in power supply 50 when the charging interface is connected to the external power supply; the power detection module 40 is connected to the built-in power supply 50 and the low-power control module 20 respectively, and is used to detect the real-time power of the built-in power supply 50 and transmit the real-time power to the low-power control module 20; the low-power control module 20 is connected to the main control module 30 and the charging management module 10 respectively, and is used to control the main control module 30 to be in a power-off state when the real-time power reaches a preset first power threshold; and the charging interface is controlled to be in an open circuit state through the charging management module 10; it solves the problem of low charging energy efficiency and failure to meet the charging energy consumption requirements in the related art, automatically realizes the timely disconnection of the charging interface after full charging, and controls the main control module 30 to be in a power-off state, and has strong versatility.

[0041] Through this embodiment, energy loss can be reduced, charging energy efficiency can be improved, and charging energy consumption requirements can be met.

[0042] The following is a detailed description of each of the above components:

[0043] In one embodiment, the low power consumption control module 20 is further used to pull up the power control signal through a preset timing standard when the charging interface is connected to an external power supply, so as to control the main control module 30 to be in a low power consumption working state.

[0044] Specifically, the timing standard is preset, which refers to the synchronization rate at which the main control module 30 is started; different timing standards are applicable to different main control modules 30. The low power control module 20 is used to pull up the power control signal according to the preset timing standard when the charging interface is connected to the external power supply, so as to control the main control module 30 to be in a low power working state; at this time, it can be considered as charging in the shutdown or standby state, thereby further reducing the energy consumption during the charging process to save external energy consumption.

[0045] In one of the embodiments, the low power consumption control module 20 is also used to control the charging interface to be in a pass state through the charging management module 10 when the circuit is lower than a preset second power threshold, and simultaneously pull up the power control signal to continue charging the built-in power supply 50 at low power.

[0046] Specifically, the second power threshold is preset, and it can be considered as the power of the built-in power supply 50 in a low power state, which is affected by the battery capacity of the built-in power supply 50 and is not limited thereto. The low power control module 20 is used to control the charging interface to be in a pass state through the charging management module 10, and simultaneously pull up the power control signal to recharge the built-in power supply 50 at low power; the function of recharging at low power is realized, and the user experience is improved.

[0047] The power-on steps are introduced according to whether the charging port is connected to an external power source:

[0048] In one of the embodiments, the charging management module 10 is also used to convert the first signal into a second signal when the charging interface is connected to an external power supply and a power-on signal is detected; at the same time, the low-power control module 20, under the power-on signal, pulls up the power control signal through a preset timing standard to control the main control module 30 to be in a normal working state; the first signal is the power supply signal of the external power supply; the second signal is the control signal of the main control power supply circuit in the charging management module 10.

[0049] Specifically, the above process can be considered as a power-on step of connecting the charging interface to an external power source.

[0050] Among them, the first signal is the power supply signal of the external power supply, which can be represented by Vtype. The second signal is the control signal of the main control power supply circuit in the charging management module 10, which can be represented by Vsys. When the charging interface TYPEC is connected to the external power supply, and the charging management module 10 detects the power-on signal, the first signal Vtype is converted into the second signal Vsys; at the same time, the low-power control module 20, under the power-on signal, pulls up the power control signal through the preset timing standard to control the main control module 30 to be in normal working state; then under the second signal Vsys, the external power supply is used as the power supply, so that the main control power supply circuit can perform specific charging work.

[0051] Through this embodiment, normal startup is achieved when connected to an external power supply, thereby improving startup efficiency and stability.

[0052] In one of the embodiments, the charging management module 10 is also used to convert the third signal into a second signal when the charging interface is not connected to an external power supply and a power-on signal is detected; at the same time, the low-power control module 20, under the power-on signal, pulls up the power control signal through a preset timing standard to control the main control module 30 to be in a normal working state; the third signal is the power supply signal of the built-in power supply 50; the second signal is the control signal of the main control power supply circuit in the charging management module 10.

[0053] Specifically, the above process can be considered as a startup step when the charging interface is not connected to an external power source.

[0054] Among them, the third signal is the power supply signal of the built-in power supply 50, which can be represented by Vbat. When the charging interface TYPEC is not connected to the external power supply, and the charging management module 10 detects the power-on signal, the third signal Vba is converted into the second signal Vsys; at the same time, the low power control module 20, under the power-on signal, pulls up the power control signal through the preset timing standard to control the main control module 30 to be in a normal working state; then under the second signal Vsys, the built-in power supply 50 is used as the power supply, so that the main control power supply circuit can perform specific charging work.

[0055] Through this embodiment, normal startup is achieved without connecting to an external power supply, the startup efficiency and stability are improved, and the simultaneous charging and discharging of the built-in power supply 50 is avoided, thereby increasing the battery life.

[0056] In one embodiment, if Figure 2 As shown, the low power consumption control module includes a low power consumption control chip 21 and a power gating circuit 22;

[0057] The power gating circuit 22 is connected to the low power consumption control chip 21 and is used to output a gating signal to the low power consumption control chip 21;

[0058] The low power consumption control chip 21 is connected to the main control module 30 and the charging management module respectively, and is used to generate a power enable signal according to the selection signal.

[0059] Specifically, the low-power control chip 21 may include its peripheral circuits, and there is no restriction on the setting of the peripheral circuits. Among them, the input signals of the low-power control chip 21 are: the power on / off signal (which can be implemented by an external power on / off detection module), the insertion detection signal of the charging interface TYPEC, and the secondary power input signal VCC (provided by the power gating circuit 22). The output signals include: power enable signal, specifically power enable signal 1, power enable signal 2, and power enable signal 3; the power enable signal is used to meet the power-on timing of the main control module.

[0060] Through this embodiment, the hardware structure of the low power consumption control module is simplified to meet the requirement of miniaturization.

[0061] In one embodiment, if Figure 3 As shown, the power gating circuit 22 includes a voltage regulator and a power gating unit 221;

[0062] The power gating unit 221 is connected to the voltage stabilizer and is used to output a gating signal through the voltage stabilizer.

[0063] Specifically, the voltage regulator is used to maintain the stability of the gating signal. The power gating unit 221 is composed of a capacitor, a diode, a resistor and a button battery. Specifically, the power gating unit 221 includes a capacitor C3, a diode D1, a diode D2, a diode D3, a diode D4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, and a button battery VBT; one end of the resistor R1 is connected to the output end Vbat of the built-in power supply; the other end of the resistor R1 is respectively connected to one end of the resistor R2 and one end of the diode D1; the other end of the resistor R2 is grounded; the other end of the diode D1 is respectively connected to the other end of the diode D3, the other end of the diode D4, the input end of the regulator, and one end of the capacitor C3; the other end of the capacitor C3 is grounded; one end of the diode D3 is respectively connected to the other end of the resistor R3, one end of the resistor R4 and one end of the diode D2; one end of the resistor R3 is connected to the system power supply Vsys; the other end of the resistor R4 is connected to the negative electrode of the button battery and then to the ground; the other end of the diode D4 is connected to one end of the diode D2 and then to the positive electrode of the button battery; the output end of the regulator is used as a secondary power input signal VCC, which remains in a normally powered-on state.

[0064] Through this embodiment, the implementation of the power supply gating circuit 22 is simplified and the cost is reduced.

[0065] In other embodiments, the power gating unit 221 may be implemented using other circuit structures, which is not limited thereto.

[0066] In one embodiment, if Figure 4 As shown, the charging management module includes a charging management chip 11, a switch unit 12 and a main control power supply circuit 13;

[0067] The charging management chip 11 is connected to the main control power supply circuit 13 and the built-in power supply through the switch unit 12, and is used to switch the power supply of the external power supply and the built-in power supply through the switch unit 12;

[0068] The charging management chip 11 is also connected to the low power consumption processing module to transmit the switching signal of the switching unit 12 to the low power consumption processing module.

[0069] Specifically, the charging management chip 11 may include its peripheral circuits, and there is no restriction on the setting of the peripheral circuits. Among them, the input signals of the power management chip include: power on / off signal, insertion detection signal of charging interface TYPEC, and power supply Vbat of the built-in power supply. The output signals of the power management chip include: system power supply Vsys. The charging management chip 11 is also connected to the low power consumption processing module to transmit the switching signal of the switch unit 12 to the low power consumption processing module.

[0070] The switch unit 12 is used to select the power supply Vbat of the built-in power supply and the power supply Vtype of the charging interface (external power supply) TYPEC. The input signal of the main control power supply circuit 13 includes: system power supply Vsys; the output signal includes: power enable signal, specifically power enable signal 1, power enable signal 2, power enable signal 3; the power enable signal is used to meet the power-on timing of the main control module.

[0071] Through this embodiment, the hardware structure of the low power consumption control module is simplified to meet the requirement of miniaturization.

[0072] In one embodiment, the switch unit 12 is composed of a transistor, a capacitor, and an inductor.

[0073] Specifically, the switch unit 12 includes transistor Q1, transistor Q2, transistor Q3, transistor Q4, capacitor C1, capacitor C2 and inductor L1; wherein, the bases of transistor Q1, transistor Q2, transistor Q3 and transistor Q4 are all connected to the charging management chip 11; the collector of transistor Q1 is connected to the charging interface; the emitter of transistor Q1 is connected to the collector of transistor Q2; the emitter of transistor Q2 is respectively connected to the emitter of transistor Q3 and one end of inductor L1; the collector of transistor Q3 is grounded; the other end of inductor L1 is respectively connected to one end of capacitor C1 and the emitter of transistor Q4, and outputs the signal to the main control power supply circuit 13 as the output end; the other end of capacitor C1 is grounded; the collector of transistor Q4 is respectively connected to one end of capacitor C2 and the positive electrode of the built-in power supply; the negative electrode of the built-in power supply and the other end of capacitor C2 are connected and then grounded.

[0074] When the charging interface TYPEC is not plugged into an external power source, transistor Q4 is turned on; transistors Q1, Q2, and Q3 are turned off, so that the Vbat of the built-in power source is input and Vsys is output. When the charging interface TYPEC is plugged into an external power source, transistors Q1, Q2, and Q4 are turned on, and transistor Q3 is turned off, the Vtype of the charging interface is input and Vsys is output; the Vtype of the charging interface charges the built-in power source at the same time.

[0075] Through this embodiment, different signals can be stably switched to control the main control power supply circuit 13 to output the corresponding power enable signal, and the structure is simple, meeting the requirements of miniaturization.

[0076] In addition, in combination with the visual device in the above embodiment, the embodiment of the present application can provide a visual device to implement. The visual device includes any one of the charging energy efficiency management systems in the above embodiment.

[0077] Through the above-mentioned visual equipment, the problems of low charging efficiency and failure to meet charging energy consumption requirements in related technologies are solved. The charging interface is disconnected in time after full charging, and the main control module is controlled to be in a power-off state to reduce energy loss and improve charging efficiency, thereby meeting charging energy consumption requirements. It has strong versatility and can be combined with various visual equipment for use.

[0078] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A charging energy efficiency management system, characterized in that: Including: charging interface, charging management module, low power control module, main control module, power detection module and built-in power supply; The charging management module is used to control the external power supply to charge the built-in power supply when the charging interface is connected to the external power supply; The power detection module is connected to the built-in power supply and the low power consumption control module respectively, and is used to detect the real-time power of the built-in power supply and transmit the real-time power to the low power consumption control module; The low-power control module is connected to the main control module and the charging management module respectively, and is used to control the main control module to be in a power-off state when the real-time power reaches a preset first power threshold; and control the charging interface to be in a circuit-breaking state through the charging management module.

2. The charging energy efficiency management system according to claim 1, characterized in that: The low power consumption control module is also used to pull up the power control signal through a preset timing standard when the charging interface is connected to an external power supply, so as to control the main control module to be in a low power consumption working state.

3. The charging energy efficiency management system according to claim 1, characterized in that: The low power consumption control module is also used to control the charging interface to be in a pass state through the charging management module when the circuit power is lower than a preset second power threshold, and simultaneously pull up the power control signal to continue charging the built-in power supply at low power.

4. The charging energy efficiency management system according to claim 1, characterized in that: The charging management module is also used to convert the first signal into a second signal when the charging interface is connected to an external power supply and a power-on signal is detected; at the same time, the low-power control module, under the power-on signal, pulls up the power control signal through a preset timing standard to control the main control module to be in a normal working state; the first signal is the power supply signal of the external power supply; the second signal is the control signal of the main control power supply circuit in the charging management module.

5. The charging energy efficiency management system according to claim 1, characterized in that: The charging management module is also used to convert the third signal into the second signal when the charging interface is not connected to an external power supply and a power-on signal is detected; at the same time, the low-power control module, under the power-on signal, pulls up the power control signal through a preset timing standard to control the main control module to be in a normal working state; the third signal is the power supply signal of the built-in power supply; and the second signal is the control signal of the main control power supply circuit in the charging management module.

6. The charging energy efficiency management system according to any one of claims 1 to 5, characterized in that: The low power consumption control module comprises a low power consumption control chip and a power gating circuit; The power gating circuit is connected to the low power consumption control chip and is used to output a gating signal to the low power consumption control chip; The low power consumption control chip is connected to the main control module and the charging management module respectively, and is used to generate a power enable signal according to the selection signal.

7. The charging energy efficiency management system according to claim 6, characterized in that: The power gating circuit includes a voltage stabilizer and a power gating unit; The power supply gating unit is connected to the voltage stabilizer and is used to output a gating signal through the voltage stabilizer.

8. The charging energy efficiency management system according to claim 6, characterized in that: The charging management module includes a charging management chip, a switch unit and a main control power supply circuit; The charging management chip is connected to the main control power supply circuit and the built-in power supply respectively through the switch unit, and is used to switch the power supply of the external power supply and the built-in power supply through the switch unit; The charging management chip is also connected to the low power consumption processing module to transmit the switching signal of the switching unit to the low power consumption processing module.

9. The charging energy efficiency management system according to claim 8, characterized in that: The switch unit is composed of a transistor, a capacitor and an inductor.

10. A visual device, comprising the charging energy efficiency management system according to any one of claims 1 to 9.

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