Double-battery charging and power supply type bracelet

Abstract

The utility model provides a kind of double battery charging power supply type bracelet, belong to bracelet power supply technical field;Including watch body, watchband, spare battery being installed in watch body inside, MCU and main battery being installed on watchband are installed in watch body inside, and MCU is electrically connected with the second power supply port of spare battery and the third power supply port of main battery by first power supply port. The utility model is by adopting double battery design, when the main battery power is lower than charging threshold value by I / O detection MCU, bracelet switches spare battery to supply power to watch body, at this time, user can be prompted to remove main battery and charge, when main battery is loaded into watchband, MCU detects that the main battery power is greater than low power mode threshold value by I / O, disconnects spare battery power supply, and charges spare battery reaching charging threshold value, so that bracelet does not need to be taken down as a whole when charging, avoid the problem that user's health and safety cannot be real-time guarded when bracelet is taken down.

Description

Technical Field

[0001] This utility model belongs to the field of wristband power supply technology, specifically relating to a dual-battery rechargeable wristband. Background Technology

[0002] With the rapid expansion of the wearable device market, smart bracelets, as convenient health monitoring and activity tracking tools, have gained widespread popularity among consumers. However, traditional smart bracelets use a single battery for power, and battery life has always been a key factor restricting their development. In daily life, elderly people often forget to charge their bracelets, making it impossible to use their functions properly. This affects the user experience to some extent. Moreover, charging the bracelet requires removing it completely, which not only makes it easy to lose or damage the bracelet, but also fails to protect the health and safety of the elderly when it is removed. Utility Model Content

[0003] (1) Technical problems to be solved To address the shortcomings of existing technologies, the purpose of this utility model is to provide a dual-battery rechargeable wristband. This solves the problem that existing wristbands use a single battery for power, which often prevents elderly people from using the various functions of the wristband properly in daily life because they forget to charge it. This affects the user experience to some extent. Moreover, the wristband needs to be completely removed for charging, which not only makes it easy for the wristband to be lost or damaged, but also fails to protect the health and safety of the elderly when the wristband is removed.

[0004] (2) Technical solution To solve the above-mentioned technical problems, this utility model provides a dual-battery rechargeable wristband, including a watch body, a watch band, a backup battery installed inside the watch body, an MCU installed inside the watch body, and a main battery installed on the watch band. The MCU is electrically connected to the second power supply port of the backup battery and the third power supply port of the main battery through a first power supply port. A first switch is installed between the power input terminal of the watch body and the second power supply port of the backup battery. A reverse diode is installed between the power input terminal of the watch body and the third power supply port of the main battery. A second switch is installed between the second power supply port of the backup battery and the third power supply port of the main battery. The control terminal of the MCU is electrically connected to the control terminals of the first switch and the second switch through a control line, wherein the first switch is normally closed and the second switch is normally open. The MCU detects the voltage of the backup battery and analyzes the remaining power through the first I / O port, and detects the voltage of the main battery and analyzes the remaining power through the second I / O port. The MCU controls the closing and opening of the first switch and the second switch.

[0005] Preferably, a capacitor is fixedly connected to the power input terminal of the meter body to ensure the stability of the power supply to the meter body, and the capacitor is grounded through the first wire.

[0006] Preferably, the backup battery and the main battery are grounded via a second wire.

[0007] Preferably, a battery mounting bracket is fixedly connected to the middle of the watch strap, and the main battery is installed inside the battery mounting bracket.

[0008] Preferably, the capacity of the main battery is greater than that of the backup battery.

[0009] The control method described in this application includes the following steps: Step 1: When the main battery is connected to the circuit, the MCU detects that the backup battery voltage is greater than the charging threshold through the first I / O port. When the MCU detects that the main battery power is higher than the preset charging threshold through the second I / O port, it supplies power to the meter through the main battery, while controlling the first switch to open and keeping the second switch in the open state to disconnect the power supply to the backup battery. Step 2: When the MCU detects that the main battery level has reached the low battery threshold, the wristband prompts the user to charge it in time; Step 3: During the process of the main battery supplying power to the meter, the MCU detects through the second I / O port that the main battery third power supply port is disconnected or has reached the preset charging threshold. The MCU then controls the first switch to close, switching the backup battery to supply power to the meter.

[0010] Preferably, after the wristband prompts the user to charge in time in step two, the watch body enters low power mode. When the MCU detects that the main battery power is lower than the charging threshold, step three is then performed.

[0011] Preferably, the low power mode threshold is when the screen display battery level is below 20%, and the charging threshold is when the screen display battery level is below 1%.

[0012] Preferably, step one further includes the following steps: S1. When the MCU detects that the main battery's power level is higher than the low power mode threshold and the MCU detects that the backup battery's power level has reached the charging threshold, the MCU controls the second switch to close and controls the first switch to remain open, so that the main battery charges the backup battery. S2. When the MCU detects that the backup battery has reached the full charge threshold, the MCU controls the second switch to open, disconnecting the main battery from charging the backup battery.

[0013] Preferably, the charging threshold is uniformly set when the screen display battery level is below 1%, and the full charge threshold is set when the screen display battery level is 100%.

[0014] (3) Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: The above solution employs a dual-battery design. When the main battery of the bracelet is low on power, the backup battery is switched to power the watch body. At this time, the user is prompted to remove the main battery for charging. When the main battery is inserted into the strap, the MCU detects through I / O that the main battery power is higher than the low power mode threshold, actively switches to main battery power supply, disconnects backup battery power supply, and charges the backup battery that has reached the charging threshold. This allows the bracelet to be charged without being completely removed, enabling uninterrupted health monitoring during charging and protecting the health and safety of the elderly in real time. Attached Figure Description

[0015] Figure 1 A 3D structural diagram of a dual-battery rechargeable wristband.

[0016] Figure 2 A schematic diagram of the structure for removing the main battery of a dual-battery rechargeable wristband.

[0017] Figure 3 A schematic diagram of the circuit connection structure for a dual-battery charging wristband.

[0018] Figure 4 A schematic diagram of the connection structure when switching between the main and backup batteries in a dual-battery charging and powering wristband.

[0019] Figure 5 A schematic diagram of a dual-battery rechargeable wristband powered by the main battery.

[0020] Figure 6 A schematic diagram of a dual-battery rechargeable wristband powered by a backup battery.

[0021] Figure 7 A schematic diagram of the structure of a dual-battery rechargeable wristband where the main battery charges the backup battery.

[0022] The labels in the attached diagram are as follows: 1. Watch body; 2. Watch strap; 3. Backup battery; 31. Second power supply port; 4. MCU; 5. Main battery; 51. Third power supply port; 61. First I / O port; 62. Second I / O port; 7. First switch; 8. Reverse diode; 9. Second switch; 10. Capacitor; 11. First wire; 12. Second wire; 13. Battery mounting bracket; 14. First power supply port; 15. Electrical connector. Detailed Implementation

[0023] This utility model provides a dual-battery rechargeable wristband, including a watch body 1, a watch band 2, a backup battery 3 installed inside the watch body 1, an MCU 4 installed inside the watch body 1, and a main battery 5 installed on the watch band. The MCU 4 is electrically connected to the second power supply port 31 of the backup battery 3 and the third power supply port 51 of the main battery 5 through a first power supply port 14. A first switch 7 is installed between the power input terminal of the watch body 1 and the second power supply port 31 of the backup battery 3. A reverse diode 8 is installed between the power input terminal of the watch body 1 and the third power supply port 51 of the main battery 5. A second switch 9 is installed between the second power supply port 31 of the backup battery 3 and the third power supply port 51 of the main battery 5. The control terminal of the MCU 4 is electrically connected to the control terminals of the first switch 7 and the second switch 9 through a control line, wherein the first switch 7 is normally closed and the second switch 9 is normally open. MCU4 detects the voltage of the backup battery 3 and analyzes the remaining power through the first I / O port 61. MCU4 detects the voltage of the main battery 5 and analyzes the remaining power through the second I / O port 62. MCU4 controls the closing and opening of the first switch 7 and the second switch 9. The first switch 7 and the second switch 9 can be small relays or other types of switches.

[0024] like Figure 3 As shown, in this embodiment, a capacitor 10 is fixedly connected to the power input terminal of the meter body 1. The capacitor 10 is grounded through the first wire 11, and the backup battery 3 and the main battery 5 are grounded through the second wire 12 respectively. The capacitor 10 plays the role of temporary power supply and buffering voltage change in the circuit, so as to protect the circuit safety when switching between the backup battery 3 and the main battery 5.

[0025] like Figure 1 and Figure 2 As shown, in this embodiment, a battery mounting bracket 13 is fixedly connected to the middle of the watch strap 2. The watch body 1 and the wire passing through the watch strap 2 are connected to the elastic pin fixed to the battery mounting bracket 13. The main battery 5 is snapped inside the battery mounting bracket 13. The main battery 5 contains an electrical connector 15, which is stably connected to the elastic pin under the action of the snap, so as to charge and supply power to the watch body 1.

[0026] In this embodiment, the capacity of the main battery 5 is greater than that of the backup battery 3; thus, the main battery 5 can charge the backup battery 3. Only the main battery 5 needs to be removed for charging, without removing the main body of the bracelet for charging, ensuring that the bracelet can always be worn on the user's wrist.

[0027] The control method described in this application includes the following steps: Step 1: When the main battery 5 is connected to the circuit, MCU4 detects through the first I / O port 61 that the voltage of the backup battery 3 is greater than the charging threshold, and when MCU4 detects through the second I / O port 62 that the charge of the main battery 5 is higher than the preset charging threshold, it supplies power to the meter body 1 through the main battery 5, and simultaneously controls the first switch 7 to open, disconnecting the power supply to the backup battery 3 (e.g., Figure 5 ); Step 2: When MCU4 detects that the main battery 5 has reached the low power threshold, the wristband prompts the user to charge it in time; Step 3: During the process of the main battery 5 supplying power to the meter body 1, the MCU4 detects through the second I / O port 62 that the main battery 5's third power supply port 51 is disconnected or has reached a preset charging threshold. The MCU4 then controls the first switch 7 to close, switching the backup battery 3 to supply power to the meter body 1. (e.g.) Figure 4 (As shown).

[0028] In this embodiment, after the wristband prompts the user to charge in time in step two, the watch body 1 enters low power mode. When the MCU4 detects that the power of the main battery 5 is lower than the charging threshold, step three is then performed.

[0029] In this embodiment, the low power mode threshold is when the screen display battery level is below 20%, and the charging threshold is when the screen display battery level is below 1%.

[0030] In this embodiment, step one further includes the following steps: S1. When MCU4 detects that the main battery 5's power level is higher than the low power mode threshold, and MCU4 detects that the backup battery 3's power level has reached the charging threshold, MCU4 controls the second switch 9 to close and controls the first switch 7 to remain open, allowing the main battery 5 to charge the backup battery 3 (e.g., ...). Figure 7 ); S2. When MCU4 detects that the backup battery 3 has reached the full charge threshold, MCU4 controls the second switch 9 to open, disconnecting the main battery 5 from charging the backup battery 3.

[0031] In this embodiment, the charging threshold is uniformly set at a screen display battery level of less than 1%, and the full charge threshold is set at a screen display battery level of 100%. Thus, after the main battery 5 is charged and installed into the wristband for battery swapping, if the remaining charge of the backup battery 3 is higher than the charging threshold, there is no need to charge the backup battery, thereby extending the lifespan of the backup battery.

[0032] The specific technical solution provided by this utility model is as follows: The wristband employs a dual-battery design. When the main battery 5 is removed for charging, the backup battery 3 powers the watch body 1. When the main battery 5 is inserted into the watch band, the MCU4 detects through the second I / O port 62 that the main battery 5's charge level is higher than the low-charge mode threshold. Simultaneously, it controls the first switch 7 to open, switching power from the backup battery 3 to the main battery 5. Then, the MCU4 detects the backup battery 3's charge level through the first I / O port 61. If the backup battery 3's charge level is lower than the charging threshold, the MCU4 controls the second switch 9 to close, allowing the main battery 5 to charge the backup battery 3. When the MCU4 detects through the first I / O port 61 that the backup battery 3 has reached the full charge threshold, the MCU4 controls the second switch 9 to open, disconnecting the main battery 5. The system charges the backup battery 3. When the MCU4 detects through the second I / O port 62 that the main battery 5 has reached the low power mode threshold, the bracelet prompts the user to charge it in time, and the watch body 1 enters the low power mode. When the MCU4 detects through the second I / O port 62 that the main battery 5 has reached the charging threshold, the MCU4 controls the first switch 7 to close, switching the backup battery 3 to power the watch body 1. At this time, the user can remove the main battery 5 to charge it. When the main battery 5 is inserted into the watch band, the main battery 5 can be switched to power the watch body 1, while the backup battery 3, which has reached the charging threshold, is charged. This allows the bracelet to be charged without being completely removed, avoiding loss or damage to the bracelet and protecting the user's health and safety in real time.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A dual battery power supply bracelet, characterized in that, The watch includes a watch body (1), a watch strap (2), a spare battery (3) installed inside the watch body (1), an MCU (4) installed inside the watch body (1), and a main battery (5) installed on the watch strap. The MCU (4) is electrically connected to the second power supply port (31) of the spare battery (3) and the third power supply port (51) of the main battery (5) through a first power supply port (14). A first switch (7) is installed between the power input terminal of the watch body (1) and the second power supply port (31) of the spare battery (3). A reverse diode (8) is installed between the power input terminal of the watch body (1) and the third power supply port (51) of the main battery (5). A second switch (9) is installed between the second power supply port (31) of the spare battery (3) and the third power supply port (51) of the main battery (5). The control terminal of the MCU (4) is electrically connected to the control terminals of the first switch (7) and the second switch (9) through a control line. The first switch (7) is normally closed and the second switch (9) is normally open. The MCU (4) detects the voltage of the backup battery (3) and analyzes the remaining power through the first I / O port (61). The MCU (4) detects the voltage of the main battery (5) and analyzes the remaining power through the second I / O port (62). The MCU (4) controls the closing and opening of the first switch (7) and the second switch (9). A capacitor (10) is fixedly connected to the power input terminal of the meter body (1) to ensure stable power supply to the meter body (1). The capacitor (10) is grounded through the first wire (11). The backup battery (3) and the main battery (5) are respectively grounded through the second wire (12); A battery mounting bracket (13) is fixedly connected to the middle of the watch strap (2), and the main battery (5) is installed inside the battery mounting bracket (13); The capacity of the main battery (5) is greater than that of the backup battery (3).

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