The present invention relates to a hand-held electronic apparatus, a charging system, a connector and a charging management method thereof, and particularly, to a hand-held electronic apparatus, a charging system and a charging management method thereof capable of preventing that overheating of the apparatus brings forth danger.
In current hand-held mobile apparatuses, due to increase of frequency of use and improvement of battery capacity, the design for rapid charging is increasingly popular, and an increasingly greater charging current is required. In this situation, security of a charger, a wire rod, and a connector to which the hand-held mobile apparatus is applied becomes particularly important. The current hand-held mobile apparatus has lots of security concerns, for example, water or moisture enters a charging connector of the hand-held mobile apparatus, because water volatilization will make impurities in the water precipitated on the connector and lead to increase of the impedance on the charging connector; based on the common use of the hand-held mobile apparatus in public places, there is a great probability to encounter foreign matters or dust invades the charging connector.
In the above situation, after the hand-held mobile apparatus has been used for a long time, great heat may be generated during charging due to degradation of the connector, and even security concerns may be generated due to a phenomenon of burnout. Therefore, how to ensure security of the hand-held mobile apparatus in use is an important issue of those skilled in the art.
The present invention provides a hand-held electronic apparatus, a charging system, a connector and a charging management method thereof, which can avoid that the port is short-circuited to lead to an over-temperature state.
The charging management method of the present invention is suitable for a hand-held electronic apparatus, including: detecting a detection temperature on a charging port of the hand-held electronic apparatus, wherein the charging port is coupled to a power adapter; starting an alert mode when the detection temperature exceeds a threshold; measuring variation of the detection temperature according to a preset cycle in the alert mode; setting an over-temperature flag according to the variation of the detection temperature in the alert mode; and making the power adapter stop providing a charging voltage according to the over-temperature flag.
The charging system of the present invention includes an apparatus end and a power adapter. The apparatus end has a charging port, a temperature detector, and a first controller, and the temperature detector is configured on the charging port and transmits a detection temperature to the first controller. The power adapter is coupled to the apparatus end, and provides a charging voltage to the charging port, wherein the first controller starts an alert mode when the detection temperature exceeds a threshold, measures variation of the detection temperature according to a preset cycle in the alert mode, and sets an over-temperature flag according to the variation of the detection temperature. The first controller transmits over-temperature information to the power adapter according to the over-temperature flag, and makes the power adapter stop providing the charging voltage to the charging port.
The connector of the present invention receives a charging voltage provided by a power adapter, and is connected to a host end through a charging port. The connector includes a temperature detector, a controller and a power switch. The temperature detector detects a detection temperature. The controller is coupled to the temperature detector, and receives the detection temperature. The power switch is coupled to the first controller, the power adapter, and the charging port, wherein the controller starts an alert mode when the detection temperature exceeds a threshold, and measures variation of the detection temperature in the alert mode according to a preset cycle, and sets an over-temperature flag according to the variation of the detection temperature. The controller transmits over-temperature information to the power switch according to the over-temperature flag, and makes the power switch cut off to stop providing the charging voltage to the charging port.
The hand-held electronic apparatus of the present invention is connected to a power adapter for charging. The hand-held electronic apparatus includes a charging port, a temperature detector, and a controller. The temperature detector disposed adjacently to the charging port, and detects a detection temperature on the charging port. The controller is coupled to the charging port and the temperature detector, receives the detection temperature, starts an alert mode when the detection temperature exceeds a threshold, and measures variation of the detection temperature in the alert mode according to a preset cycle, and sets an over-temperature flag according to the variation of the detection temperature. The controller transmits over-temperature information to the power adapter according to the over-temperature flag, and makes the power adapter stop providing a charging voltage to the charging port.
Based on the above, the present invention provides a hand-held electronic apparatus, a connector, and a charging system, judges whether micro-short circuiting occurs in a charging port of the hand-held electronic apparatus according to a variation rate of a detection temperature in an alert mode, and stops a charging action in an over-temperature condition, to avoid unanticipated danger.
To make the above features and advantages of the present invention more comprehensible, detailed description is made below with specific embodiments and in conjunction with the accompanying drawings.
Referring to
In the alert mode, in step S130, variation of the detection temperature may be measured under a preset cycle. Specifically, the hand-held electronic apparatus may, in a fixed time interval, calculate a variation condition of the detection temperature, and accordingly observe a variation rate of the detection temperature. In step S140, an over-temperature flag is set according to the variation of the detection temperature. In the fixed time interval, when a rising value of the detection temperature is greater than a preset variation value, the hand-held electronic apparatus may set the over-temperature flag to be equal to a first logic level (e.g., logic level 1), and relatively, if the rising value of the detection temperature is not greater than the preset variation value, the hand-held electronic apparatus may maintain the over-temperature flag to be equal to a second logic level (e.g., logic level 0).
In step S150, the hand-held electronic apparatus may generate over-temperature information according to the over-temperature flag, and provide the over-temperature information to a power adapter to make the power adapter stop providing a charging voltage to the hand-held electronic apparatus. Herein, when the over-temperature flag is set as the first logic level, the hand-held electronic apparatus may generate over-temperature information according to the over-temperature flag, and transmit the over-temperature information to the power adapter through a communication interface. It should be noted that the over-temperature information is not limited in the format. In an embodiment of the present invention, the hand-held electronic apparatus may use the value of the over-temperature flag as over-temperature information and transmit it to the power adapter, or, in other embodiments of the present invention, the hand-held electronic apparatus may convert the value of the over-temperature flag to a data packet, and transmit the data packet to the power adapter.
When the power adapter receives the over-temperature information, the power adapter may stop supplying a charging voltage, and stop charging the hand-held electronic apparatus, to ensure security of the system.
To describe the charging management method proposed in the present invention more clearly, please refer to the flow chart of implementation steps of the charging management method according to the embodiment of the present invention depicted in
In step S220, a preset cycle is set to 30 s, and a variation state per 30 second of the detection temperature is obtained by monitoring the amplitude of the detection temperature once every 30 s. Next, in step S230, whether the rising amplitude of the detection temperature every 30 second exceeds 30° C. is judged. If it is judged that the rising amplitude of the detection temperature every 30 second exceeds 30° C., step S240 is performed, and relatively, if it is judged that the rising amplitude of the detection temperature every 30 second does not exceed 30° C., step S210 is performed again to judge whether the detection temperature is greater than 65° C. It should be noted that, if it is found in the alert mode that the detection temperature decreases to 65° C. below, the alert mode is closed.
In step S240, as the rising amplitude of the detection temperature every 30 second exceeds 30° C., indicating that the variation state of the temperature on the charging port of the hand-held electronic apparatus is abnormal, an over-temperature flag is set, and the detection temperature is intensely monitored once every second. In step S250, warning information is generated according to the over-temperature flag, and the over-temperature information is transmitted to the power adapter according to the over-temperature flag, to make the power adapter stop providing the charging voltage to the hand-held electronic apparatus.
In the above description, the warning information may be at least one of a display image, an alert sound, and vibration.
Referring to
Herein, in the apparatus end 310, the first controller 312 may detect the temperature on the charging port 311 according to the temperature management process in
On the other hand, the communication interface 330 in this embodiment may be a wired or wireless communication interface, which is not particularly limited in the transmission format.
Additionally, the apparatus end 310 and the power adapter 320 in this embodiment may be connected through a C-type universal serial bus (USB), and the charging voltage is transmitted through the C-type USB, to rapidly charge the apparatus end 310. The apparatus end 310 may be the hand-held electronic apparatus.
Next, referring to
In
Referring to
Referring to
It should be noted that the warning signal generator 440 is coupled to the controller 420, and sends warning information corresponding to generation of the over-temperature information. The warning signal generator 440 may be a display screen, and when the temperature state on the charging port 410 is abnormal, displays a warning signal through the screen or flashing light. Certainly, the warning signal generator 440 may also be a buzzer, a speaker or other sounding apparatuses, for making a warning sound to prompt a user that the temperature state on the charging port 410 is abnormal. Alternatively, the warning signal generator 440 may be an actuator, to generate warning information by making the hand-held electronic apparatus 400 vibrate. Certainly, the warning signal generator 440 may also include multiple of the manners of generating the warning information to ensure that the user can receive the warning information.
It should be noted that in
In this implementation manner, the temperature detector 430 may be a thermistor, or other types constructed by any component that may change physical quantity according to the temperature. The detection temperature DTEM may be obtained according to the physical quantity changed by the temperature detector 430.
In summary, the present invention detects the detection temperature of the charging port in the hand-held electronic apparatus, and after the detection temperature is greater than a default threshold, stops supplying the charging voltage to the power adapter according to the variation rate of the detection temperature. In this way, the high-temperature state generated due to degradation of the charging port can be detected, and security of the hand-held electronic apparatus in use is improved.
Although the present invention has been described as above with embodiments, the embodiments are not used to limit the present invention. Any person of ordinary skill in the art may make some changes and modifications without departing from the spirit and scope of the present invention, and thus the protection scope of the present invention should be subject to that defined by the appended claims.