CN219496914U

CN219496914U - Intelligent watch capable of lighting screen by charging after battery is over-discharged

Info

Publication number: CN219496914U
Application number: CN202320005399.7U
Authority: CN
Inventors: 尹露
Original assignee: Shanghai Taiji Software Co ltd
Current assignee: Shanghai Taiji Software Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-08-08
Anticipated expiration: 2033-01-03

Abstract

The utility model provides an intelligent watch capable of lighting a screen after being charged after a battery is put. The intelligent watch capable of lighting the screen after the battery is charged after being put excessively comprises a main control circuit module, a charging management module and a power management module, wherein in the power management module, the end of the battery is connected with a PMOS tube and a diode, the power management module is used for controlling the power taking path of the rear end to be switched to the USB end by the power supply of the battery end when being charged, and the intelligent watch further comprises a display touch module, a heart rate monitoring module, a key module, a gravity acceleration sensor module, a vibration module, a storage module, an authentication NTC module and a peripheral power supply module. The intelligent watch capable of lighting the screen after the battery is charged after the battery is discharged has the advantages that the battery is not used for supplying power when the watch is charged, and the USB power supply is practical, so that the function of lighting the screen immediately after the watch is charged after the battery is discharged is realized.

Description

Intelligent watch capable of lighting screen by charging after battery is over-discharged

Technical Field

The utility model relates to the technical field of intelligent watches, in particular to an intelligent watch capable of lighting a screen after a battery is charged after being put.

Background

Under the condition that a PMOS tube and a diode are not arranged on a system power management circuit, when the intelligent watch is idle for a long time, the intelligent watch can be started to lighten a screen after the battery is required to be charged until the battery protection board is opened and voltage output is achieved due to over-discharging of the battery, trickle current is one tenth of charging current in the charging process during the period from over-discharging of the battery to opening of the battery protection board, the trickle current is insufficient to charge the battery and can bring the system up, and the intelligent watch can be started to lighten the screen after a period of time is required to be charged (after the battery is opened and the protection board is opened), so that a user feels bad of the intelligent watch, and artifacts are caused.

Therefore, it is necessary to provide a new smart watch capable of lighting the screen after the battery is charged after being discharged, so as to solve the above technical problems.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the intelligent watch which can realize the function of lighting the screen immediately after the battery is charged after the watch is discharged by over-discharging by supplying power to the battery without using the battery to supply power to the USB when the watch is charged.

In order to solve the technical problem, the intelligent watch capable of lighting a screen after being charged after the battery is put through the intelligent watch comprises: the system comprises a main control circuit module, a charging management module and a power management module.

Preferably, in the power management module, the end of the battery is connected with a PMOS tube and a diode.

Preferably, the power management module is used for controlling the power taking path of the rear end when charging, and switching from the battery end to the USB end.

Preferably, the device further comprises a display touch module, a heart rate monitoring module, a key module, a gravity acceleration sensor module, a vibration module, a storage module, an authentication NTC module and a peripheral power supply module.

Compared with the related art, the intelligent watch capable of lighting the screen after being charged after the battery is put excessively has the following beneficial effects:

the utility model provides an intelligent watch capable of lighting a screen after a battery is charged after being over-discharged, a PMOS (P-channel metal oxide semiconductor) tube and a diode are added on a path of a system power supply management of a rear end by the battery, a power taking path of the rear end is controlled during charging, power supply of the battery end is switched to a USB (universal serial bus) end, when the screen is lighted immediately after the battery of the intelligent watch is over-discharged, the power on a watch system is not supplied by the battery, and the USB power is used for supplying power (namely, the power of a charger) during charging, so that the problem that a user cannot turn on the watch for charging is solved.

Drawings

FIG. 1 is a schematic block diagram of a smart watch capable of lighting a screen when a battery is charged after being discharged;

FIG. 2 is a schematic circuit diagram of a smart watch capable of lighting a screen after the battery is charged after being discharged;

FIG. 3 is an enlarged schematic view of portion A shown in FIG. 2;

FIG. 4 is an enlarged schematic view of portion B shown in FIG. 2;

FIG. 5 is an enlarged schematic view of portion C shown in FIG. 2;

FIG. 6 is an enlarged schematic view of portion D shown in FIG. 2;

FIG. 7 is an enlarged schematic view of the portion E shown in FIG. 2;

FIG. 8 is an enlarged schematic view of portion F shown in FIG. 2;

FIG. 9 is an enlarged schematic view of the portion G shown in FIG. 2;

FIG. 10 is an enlarged schematic view of the portion H shown in FIG. 2;

FIG. 11 is an enlarged schematic view of the portion I shown in FIG. 2;

FIG. 12 is an enlarged schematic view of the portion J shown in FIG. 2;

fig. 13 is an enlarged schematic view of the K portion shown in fig. 2.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1-13 in combination, fig. 1 is a schematic block diagram of a smart watch capable of lighting a screen when a battery is charged after being discharged; FIG. 2 is a schematic circuit diagram of a smart watch capable of lighting a screen after the battery is charged after being discharged; FIG. 3 is an enlarged schematic view of portion A shown in FIG. 2; FIG. 4 is an enlarged schematic view of portion B shown in FIG. 2; FIG. 5 is an enlarged schematic view of portion C shown in FIG. 2; FIG. 6 is an enlarged schematic view of portion D shown in FIG. 2; FIG. 7 is an enlarged schematic view of the portion E shown in FIG. 2; FIG. 8 is an enlarged schematic view of portion F shown in FIG. 2;

FIG. 9 is an enlarged schematic view of the portion G shown in FIG. 2; FIG. 11 is an enlarged schematic view of the portion H shown in FIG. 2; FIG. 12 is an enlarged schematic view of the portion I shown in FIG. 2; FIG. 12 is an enlarged schematic view of the portion J shown in FIG. 2; fig. 13 is an enlarged schematic view of the K portion shown in fig. 2. The intelligent wrist-watch that charges just can bright screen after the battery is put includes: the system comprises a main control circuit module, a charging management module and a power management module.

As shown in fig. 1 and 4, when not charging, since the Q5 PMOS transistor is in a conductive state, the power supply of the U2LDO (vcc_3v3) is from the battery terminal, and: the output voltage of the U2LDO (VCC_3V3) supplies power for the main control MCU, the screen, the flash and the like;

during charging, the G electrode (grid electrode) of the Q5 PMOS tube is pulled up by the voltage division voltage of the charger USB (VDD_USB) network 5V, and the cathode voltage of the parasitic diode of the Q5 PMOS tube is larger than the anode (VDD_USB voltage: 5V and the battery working voltage 3V-4.35V) in the cut-off state, so that the power supply of the U2LDO (VCC_3V3) is from the charger USB end at the moment,

when the battery is charged after being over-discharged, the Q5 PMOS tube is cut off, the system electricity uses the USB end of the charger, the battery charging is also the electricity of the USB end of the charger, the battery charging is equivalent to the electricity of the USB end being divided into two parts, the USB end electricity is independently removed, the system can run normally, and the screen is normally on and is irrelevant to the electricity of the battery end.

If 3 is a charge management module, the module is mainly a circuit for charging a battery by a charger USB 5V, Q2 is a PMOS tube for charging, discharging, preventing and reversing, and charging IC (U9) pins 2, 3 and 4 are respectively used for charging insertion detection, full charge detection and charging enabling control, are connected to IO of a main control MCU, and additionally comprise electric quantity detection: the IO ADC function of the main control MCU detects the battery voltage for electric quantity use.

FIG. 4 is a peripheral power module powered by a battery or USB to output 3.3V to LDO (U1) to these peripheral devices, mainly TP touch pad, heart rate monitor and pedometer.

FIG. 6 is a diagram of a storage module for software and UI storage.

IN fig. 7, the upper left side is provided with an authentication NTC module, a temperature charge disabling control function, a system vcc_3v3 supplies power, a main control IO port (ntc_innetwork) ADC calculates the temperature by detecting the divided voltage values of the fixed resistor R12 and the NTC resistor, and when the temperature is greater than 55 degrees or less than 0 degree, the main control pulls up the charging IC enabling port, and the charging IC is disabled from charging the battery.

The central part of fig. 7 is a main control circuit module, which is used as the brain of the intelligent watch and used for controlling the peripheral equipment to work or receiving the sensor data, processing and displaying and other functions.

Fig. 8 is a display touch module for UI interaction, display functions.

Fig. 9 shows a vibration module, a scene motor vibration function, and a master control pulls up the mt_en foot motor vibration.

FIG. 11 is a gravity acceleration sensor module for use in step counting, wrist turning, sleep detection functions.

Fig. 12 is a key module for key and long press reset functions.

Fig. 13 is a heart rate monitoring module for measuring dynamic and static heart rates.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a battery is put after charging just can bright intelligent wrist-watch on screen, its characterized in that includes:

the system comprises a main control circuit module, a charging management module and a power management module;

in the power management module, the tail end of the battery is connected with a PMOS tube and a diode;

the power management module is used for controlling the power taking path of the rear end when charging, and switching from the battery end to the USB end.

2. The smart watch capable of lighting a screen when charged after the battery is put over according to claim 1, further comprising a display touch module, a heart rate monitoring module, a key module, a gravitational acceleration sensor module, a vibration module, a storage module, an authentication NTC module and a peripheral power supply module.