JP7152304B2 - charger - Google Patents

Description

The present disclosure relates to chargers for charging batteries.

Patent Literature 1 describes a charger that emits a sound when charging of a battery is completed.

Japanese Patent No. 4566943

In recent years, the capacity of the battery has increased due to advances in technology. As a result, it takes a long time to fully charge the battery. For this reason, the user of the battery cannot perform work using the battery until the battery is fully charged, and there is a risk that the work efficiency will be reduced.

An object of the present disclosure is to improve the work efficiency of a user using a battery.

One aspect of the present disclosure is a charger that includes a mounting section, a charging section, a notification determination section, and a notification section. The mounting portion is configured to detachably mount the battery pack. The charging section is configured to charge the battery pack attached to the attachment section. The notification determination unit is configured to determine whether or not the charge capacity of the battery pack is equal to or greater than a predetermined notification determination value that is 70% or more and less than 100%. The notification unit is configured to, when the notification determination unit determines that the charge capacity of the battery pack is equal to or greater than the notification determination value, notify that effect by sound or vibration only for a preset notification time. be.

The charger of the present disclosure configured in this manner notifies when the charge capacity of the battery pack reaches or exceeds the notification determination value, which is less than 100%. Therefore, the charger of the present disclosure allows the user to remove the battery pack from the charger without making the user wait until the charge capacity of the battery pack reaches 100%. As a result, the charger of the present disclosure allows the user to resume work using the battery pack without waiting for a long time until the charging of the battery pack is completed, thereby improving the work efficiency of the user. be able to.

In addition, the charger of the present disclosure notifies with sound or vibration. Therefore, in the charger of the present disclosure, even when the user is away from the charger, the sound output from the notification unit or the sound generated by the vibration of the notification unit is transmitted through the air. Thus, it is possible to inform the user that the charge capacity of the battery pack has reached or exceeded the notification determination value. As a result, the charger of the present disclosure allows the user to perform other work away from the charger while the battery pack is being charged, further improving the user's work efficiency. be able to.

In addition, the charger of the present disclosure notifies only during the preset notification time. Therefore, the charger of the present disclosure can reduce the power consumption of the charger.
In one aspect of the present disclosure, when the charge capacity of the battery pack reaches 100%, a full charge notification unit configured to notify that effect with sound is provided, and the notification unit performs notification with sound. can be The full charge notification unit may be configured to perform notification with a sound selected from a plurality of types of sounds, and the notification unit may be configured to perform notification with one type of sound. As a result, the charger of the present disclosure distinguishes between the fact that the charging capacity of the battery pack has reached 100% and the fact that the charging capacity of the battery pack has exceeded the notification determination value, and notifies the user. can. Furthermore, in the battery charger of the present disclosure, the notification unit notifies with one type of sound. For this reason, the battery charger of the present disclosure can eliminate the operation of selecting the type of sound in the notification unit, and can improve operability by the user.

In one aspect of the present disclosure, when the charge capacity of the battery pack reaches 100%, a full charge notification unit configured to notify that effect with sound is provided, and the notification unit performs notification with sound. can be The full charge notification unit is configured to perform notification with a sound selected from a plurality of types of sounds, and the notification unit is configured to perform notification with a sound selected from a plurality of types of sounds. You may do so. As a result, the charger of the present disclosure distinguishes between the fact that the charging capacity of the battery pack has reached 100% and the fact that the charging capacity of the battery pack has exceeded the notification determination value, and notifies the user. can.

In one aspect of the present disclosure, when the charge capacity of the battery pack reaches 100%, a full charge notification unit configured to notify that effect with sound is provided, and the notification unit performs notification with sound. can be The full charge notification unit is configured to perform notification with a sound selected from a plurality of types of sounds, and the notification unit selects the sound to be notified by the full charge notification unit from among the plurality of types of sounds. It may be configured to notify with different types of sounds. As a result, the charger of the present disclosure distinguishes between the fact that the charging capacity of the battery pack has reached 100% and the fact that the charging capacity of the battery pack has exceeded the notification determination value, and notifies the user. can.

In one aspect of the present disclosure, a prohibition determination unit configured to determine whether or not a preset prohibition condition is satisfied, and when the prohibition determination unit determines that the prohibition condition is satisfied, the notification unit and a prohibition unit configured to prohibit notification. As a result, the charger of the present disclosure can suppress the occurrence of a situation in which sound or vibration notification is performed in situations where sound or vibration notification is inappropriate, such as at night.

In one aspect of the present disclosure, when the notification determination unit determines that the charging capacity of the battery pack is equal to or greater than the notification determination value, the notification unit wirelessly transmits the notification command to an external device existing outside the charger. By transmitting the information, the external device may be notified by sound or vibration that the charge capacity of the battery pack is equal to or greater than the notification determination value only during the notification time. As a result, even when the user is away from the charger, the charger of the present disclosure notifies the user holding the external device that the charging capacity of the battery pack has reached or exceeded the notification determination value. can be transmitted. Therefore, the charger of the present disclosure allows the user to perform other work at a location away from the charger while the battery pack is being charged, further improving the user's work efficiency. be able to.

1 is a block diagram showing an electrical configuration of a charging system; FIG. 1 is a perspective view of a battery pack and charger; FIG. It is a flowchart which shows the first half part of alerting|reporting processing. It is a flowchart which shows the latter half part of an alerting|reporting process.

Embodiments of the present disclosure will be described below with reference to the drawings.
A charging system 1 of the present embodiment includes a battery pack 2, a charger 3, and a smartphone 4, as shown in FIG.

The battery pack 2 is detachably attached to a rechargeable electric device (e.g., a rechargeable electric tool, a rechargeable vacuum cleaner, and a rechargeable garden tool), and powers a power source (e.g., a DC motor) of the rechargeable electric device. supply.

The charger 3 receives power supply from an external power supply to generate a charging voltage for battery charging, and supplies power to the battery 11 in the battery pack 2 .
The smart phone 4 has a function of performing voice call and data communication via a mobile phone communication network. The smartphone 4 also has a function of performing data communication by short-range wireless communication (for example, wireless communication based on the Bluetooth standard). Bluetooth is a registered trademark.

The battery pack 2 includes a battery 11, terminals 12, 13, 14, 15, a battery control circuit 16, a voltage detection circuit 17, a current detection circuit 18, a temperature detection circuit 19, a regulator 20, and a charger detection circuit. and a circuit 21 .

The battery 11 outputs a battery voltage VB by connecting a plurality of rechargeable secondary batteries in series.
Terminal 12 is connected to the positive electrode of battery 11 . Terminal 13 is connected to the negative electrode of battery 11 . Terminal 14 is a communication terminal for communicating with charger 3 . Terminal 15 is a terminal for receiving power supply voltage Vcc for driving internal circuits from charger 3 .

The battery control circuit 16 is mainly composed of a microcomputer including a CPU 16a, a ROM 16b, a RAM 16c, and the like. Various functions of the microcomputer are realized by the CPU 16a executing a program stored in a non-transitional substantive recording medium. In this example, the ROM 16b corresponds to the non-transitional substantive recording medium storing the program. Also, by executing this program, a method corresponding to the program is executed. A part or all of the functions executed by the CPU 16a may be configured as hardware by one or a plurality of ICs or the like. Also, the number of microcomputers constituting the battery control circuit 16 may be one or more.

Voltage detection circuit 17 detects battery voltage VB. The current detection circuit 18 is provided in a conducting path from the terminal 13 to the negative electrode of the battery 11, and detects the current flowing through this conducting path. A temperature detection circuit 19 detects the internal temperature of the battery 11 .

Regulator 20 receives a DC voltage supplied through diode D1 or D2, generates a power supply voltage for driving internal circuits, and supplies the generated power supply voltage to battery control circuit 16 and peripheral circuits of battery control circuit 16. supply to

The anode of diode D1 is connected to the positive terminal of battery 11, and the anode of diode D2 is connected to terminal 15. FIG. The cathodes of diodes D1 and D2 are connected to regulator 20 . Thereby, the battery voltage VB or the power supply voltage Vcc is supplied to the regulator 20 .

Therefore, the regulator 20 can receive power supply from the battery 11 and generate a power supply voltage for driving the internal circuit. Further, when the charging capacity of the battery 11 is reduced and the power supply voltage cannot be generated, the regulator 20 receives the power supply voltage Vcc supplied from the charger 3 when connected to the charger 3, and supplies the power supply for driving the internal circuits. A voltage can be generated.

The charger detection circuit 21 is connected to a terminal 15 to which the power supply voltage Vcc of the charger 3 is applied when the battery pack 2 is attached to the charger 3 . Therefore, the charger detection circuit 21 determines whether or not the battery pack 2 is attached to the charger 3 based on the terminal voltage of the terminal 15 .

Voltage detection circuit 17 , current detection circuit 18 , temperature detection circuit 19 and charger detection circuit 21 are connected to battery control circuit 16 .
Battery control circuit 16 operates by receiving power supply from regulator 20, and monitors the state of battery 11 based on detection signals from voltage detection circuit 17, current detection circuit 18, temperature detection circuit 19, and charger detection circuit 21. do.

The battery control circuit 16 also has a communication port for communicating with the charger 3 to which the battery pack 2 is attached. This communication port is connected to terminal 14 via a communication line.

The charger 3 includes a power cord 31 , a charging circuit 32 , a charging control circuit 33 , terminals 34 , 35 , 36 and 37 , a display section 38 , a speaker 39 , a switch 40 and a wireless communication section 41 . Prepare.

The power cord 31 is connected to an external power supply and supplies power supply voltage to the charging circuit 32 .
The charging circuit 32 generates a DC voltage for charging the battery 11 from power supplied from an external power supply, and generates a power supply voltage Vcc for driving internal circuits.

The charge control circuit 33 is mainly composed of a microcomputer including a CPU 33a, a ROM 33b, a RAM 33c, and the like. Various functions of the microcomputer are realized by the CPU 33a executing a program stored in a non-transitional substantive recording medium. In this example, the ROM 33b corresponds to the non-transitional substantive recording medium storing the program. Moreover, the method corresponding to a program is performed by execution of this program. A part or all of the functions executed by the CPU 33a may be configured as hardware using one or a plurality of ICs or the like. Also, the number of microcomputers constituting the charging control circuit 33 may be one or more.

Terminals 34 and 35 are connected to the positive and negative output terminals of charging circuit 32, respectively. Terminals 34 and 35 are respectively connected to terminals 12 and 13 of battery pack 2 when battery pack 2 is attached. The terminal 36 is a communication terminal connected to the terminal 14 of the battery pack 2 to communicate with the battery pack 2 . Terminal 37 is a terminal for supplying power supply voltage Vcc generated by charger 3 to battery pack 2 .

The display unit 38 includes a plurality of light emitting diodes. The display unit 38 selectively lights or blinks the plurality of light-emitting diodes to display the operating state of the charger 3 . Speaker 39 outputs the sound indicated by the sound data input from charging control circuit 33 .

The switch 40 includes an operation switch for inputting the type of sound output from the speaker 39 and an operation switch for inputting presence/absence of notification from the smartphone 4 . In this embodiment, as the output sound from the speaker 39, four types of silence, voice, beep sound, and melody sound can be set. Accordingly, switch 40 outputs a sound selection signal indicating either silence, voice, beep or melody. Also, the switch 40 outputs a notification selection signal indicating whether or not to perform notification by the smartphone 4 .

The wireless communication unit 41 performs data communication with the smartphone 4 by short-range wireless communication.
Display unit 38 , speaker 39 , switch 40 and wireless communication unit 41 are connected to charging control circuit 33 .

The charging control circuit 33 controls charging of the battery 11 by the charging circuit 32 when the battery pack 2 is attached.
As shown in FIG. 2 , a mounting portion 61 for mounting the battery pack 2 is formed on the upper surface of the charger 3 . The mounting portion 61 is formed in a shape corresponding to the shape of the mounting portion 51 provided on the back surface of the battery pack 2 so that the battery pack 2 can be slid and mounted.

Mounting portion 61 is formed with terminal portion 62 that can be fitted with terminal portion 52 formed on the back surface of battery pack 2 when battery pack 2 is mounted on charger 3 .
Terminals 12 , 13 , 14 and 15 are provided on the terminal portion 52 of the battery pack 2 . Terminals 34 , 35 , 36 and 37 are provided in the terminal portion 62 of the charger 3 . The terminals 12-15 and 34-37 are not shown in FIG. 2, but are shown in FIG.

Next, the procedure of notification processing executed by the charging control circuit 33 will be described. The notification process is a process that is repeatedly executed while the charging control circuit 33 is operating.
When the notification process is executed, the charging control circuit 33 first determines in S10 whether or not the battery pack 2 is attached to the charger 3, as shown in FIG. Specifically, the charge control circuit 33 communicates with the battery pack 2 via the terminal 36, and when the battery pack 2 can communicate with the battery pack 2, the battery pack 2 is attached to the charger 3. It is determined that Here, if the battery pack 2 is not attached, the charge control circuit 33 once terminates the notification process.

On the other hand, when the battery pack 2 is attached, the charge control circuit 33 sets the sound output from the speaker 39 in S20. Specifically, the charge control circuit 33 sets the sound output flag F1 and the sound type Vs provided in the RAM 33c based on the sound selection signal input from the switch 40. FIG. That is, when the sound selection signal indicates silence, the charging control circuit 33 clears the sound output flag F1 and stores 0 in the sound type Vs. When the sound selection signal indicates a beep sound, the charge control circuit 33 sets the sound output flag F1 and stores 1 in the sound type Vs. When the sound selection signal indicates a melody sound, the charging control circuit 33 sets the sound output flag F1 and stores 2 in the sound type Vs. When the sound selection signal indicates sound, the charge control circuit 33 sets the sound output flag F1 and stores 3 in the sound type Vs. In the following description, setting a flag means setting the value of the flag to 1, and clearing the flag means setting the value of the flag to 0.

In addition, the charge control circuit 33 sets whether or not to notify the smartphone 4 in S30. Specifically, the charging control circuit 33 sets the smartphone notification flag F2 provided in the RAM 33c based on the notification selection signal input from the switch 40. FIG. In other words, the charge control circuit 33 sets the smartphone notification flag F2 when the notification selection signal indicates that the smartphone 4 is to perform notification. Further, the charge control circuit 33 clears the smartphone notification flag F2 when the notification selection signal does not indicate that the smartphone 4 is to perform notification.

Then, the charging control circuit 33 starts charging the battery pack 2 by the charging circuit 32 in S40.
Next, in S50, the charge control circuit 33 determines whether or not the value stored in the charge capacity Cc provided in the RAM 33c is equal to or less than a preset notification determination value TH. The notification determination value TH is set to be 70% or more and less than 100%. Further, the notification determination value TH is a value set as a charge capacity that does not pose a practical problem when the battery pack 2 is removed from the charger 3 before being fully charged. In this embodiment, the notification determination value TH is a value corresponding to 80%. The charging control circuit 33 sequentially transmits to the battery control circuit 16 charging current information indicating the value of the charging current supplied to the battery pack 2 by the charging circuit 32 . Then, the battery control circuit 16 calculates the integrated value of the charging current supplied to the battery pack 2 based on the received charging current information. The battery control circuit 16 also calculates the charging capacity of the battery pack 2 based on the integrated value of the charging current. Furthermore, the battery control circuit 16 transmits charge capacity information indicating the calculated charge capacity to the charge control circuit 33 . Upon receiving the charge capacity information from the battery control circuit 16, the charge control circuit 33 stores the charge capacity value indicated by the charge capacity information in the charge capacity Cc.

Here, if the value stored in the charging capacity Cc is less than the notification determination value TH, the charging control circuit 33 repeats the process of S50 so that the value stored in the charging capacity Cc becomes the notification determination value TH. Wait until the Then, when the value stored in the charge capacity Cc becomes equal to or greater than the notification determination value TH, the charging control circuit 33 performs the first notification in S60. Specifically, the charging control circuit 33 causes the display unit 38 to selectively light or blink a plurality of light-emitting diodes in a preset first notification mode. In this embodiment, the first notification mode is a mode in which one of the two light-emitting diodes is lit in red and the other is lit in green.

Next, in S70, the charge control circuit 33 determines whether or not the smart phone notification flag F2 is set. Here, when the smartphone notification flag F2 is cleared, the charging control circuit 33 proceeds to S100. On the other hand, if the smartphone notification flag F2 is set, the charge control circuit 33 determines in S80 whether or not the notification completion flag F4 provided in the RAM 33c is set. Here, when the notification completion flag F4 is set, the charging control circuit 33 proceeds to S100.

On the other hand, when the notification completion flag F4 is cleared, the charging control circuit 33 performs the second notification in S90, and proceeds to S100. Specifically, the charging control circuit 33 causes the wireless communication unit 41 to transmit a second notification command to the smartphone 4, and sets the notification completion flag F4. Upon receiving the second notification command, the smartphone 4 displays on the display screen of the smartphone 4 that the charging capacity of the battery pack 2 has reached a value (80% in this embodiment) corresponding to the notification determination value TH. A sound is output from the speaker of the smart phone 4 for a preset second notification time (for example, 10 seconds in the present embodiment).

Then, in S100, the charging control circuit 33 determines whether or not the sound output flag F1 is set. Here, when the sound output flag F1 is cleared, the charging control circuit 33 proceeds to S130. On the other hand, when the sound output flag F1 is set, the charging control circuit 33 determines in S110 whether or not the sound output completion flag F3 provided in the RAM 33c is set. Here, when the sound output completion flag F3 is set, the charging control circuit 33 proceeds to S130.

On the other hand, when the sound output completion flag F3 is cleared, the charging control circuit 33 performs the third notification in S120, and proceeds to S130. Specifically, the charging control circuit 33 causes the speaker 39 to output a beep sound for a preset third notification time (for example, 10 seconds in this embodiment), and sets the sound output completion flag F3.

When the process proceeds to S130, as shown in FIG. 4, the charging control circuit 33 determines whether or not the charging capacity of the battery pack 2 has reached 100%. Specifically, the charge control circuit 33 determines whether or not the value stored in the charge capacity Cc is equal to or greater than a value corresponding to 100%. Here, if the charge capacity has not reached 100%, the charge control circuit 33 proceeds to S50. On the other hand, when the charge capacity reaches 100%, the charging control circuit 33 stops charging the battery pack 2 by the charging circuit 32 in S140. Then, the charging control circuit 33 makes a fourth notification in S150. Specifically, the charge control circuit 33 selectively lights or blinks the plurality of light-emitting diodes in a preset fourth notification mode. In this embodiment, the fourth notification mode is a mode in which one of the two light-emitting diodes is lit in green and the other is turned off.

Next, the charge control circuit 33 determines in S160 whether or not the smartphone notification flag F2 is set. Here, when the smartphone notification flag F2 is cleared, the charging control circuit 33 proceeds to S190. On the other hand, if the smartphone notification flag F2 is set, the charging control circuit 33 determines in S170 whether or not the notification completion flag F6 provided in the RAM 33c is set. Here, if the notification completion flag F6 is set, the charging control circuit 33 proceeds to S190.

On the other hand, when the notification completion flag F6 is cleared, the charge control circuit 33 performs the fifth notification in S180, and proceeds to S190. Specifically, the charging control circuit 33 causes the wireless communication unit 41 to transmit a fifth notification command to the smartphone 4, and sets the notification completion flag F6. When the smartphone 4 receives the fifth notification command, the smartphone 4 displays on the display screen of the smartphone 4 that the charging capacity of the battery pack 2 has reached 100%, and also outputs the preset fifth notification by sound from the speaker of the smartphone 4. It is output only for a time period (for example, 10 seconds in this embodiment).

After proceeding to S190, the charging control circuit 33 determines whether or not the sound output flag F1 is set. Here, when the sound output flag F1 is cleared, the charging control circuit 33 proceeds to S220. On the other hand, if the sound output flag F1 is set, the charging control circuit 33 determines in S200 whether or not the sound output completion flag F5 provided in the RAM 33c is set. Here, when the sound output completion flag F5 is set, the charge control circuit 33 proceeds to S220.

On the other hand, when the sound output completion flag F5 is cleared, the charging control circuit 33 performs the sixth notification in S210, and proceeds to S220. Specifically, the charge control circuit 33 outputs the sound of the sound type corresponding to the value stored in the sound type Vs for the sixth notification time (for example, 10 seconds in the present embodiment) preset in the speaker 39. Then, the sound output completion flag F5 is set. That is, the charge control circuit 33 causes the speaker 39 to output a beep sound when 1 is stored in the sound type Vs. When 2 is stored in the sound type Vs, the charge control circuit 33 causes the speaker 39 to output a melody sound. Further, the charge control circuit 33 causes the speaker 39 to output sound when 3 is stored in the sound type Vs.

After proceeding to S220, the charging control circuit 33 determines whether or not the battery pack 2 is attached to the charger 3 in the same manner as in S10. Here, if the battery pack 2 is attached, the process of S220 is repeated to wait until the battery pack 2 is detached from the charger 3 . When the battery pack 2 is detached from the charger 3, the charge control circuit 33 once terminates the notification process.

The charger 3 configured as described above includes the mounting portion 61 , the charging circuit 32 , the charging control circuit 33 , and the speaker 39 . Mounting portion 61 is configured such that battery pack 2 is detachably mounted thereon. The charging circuit 32 is configured to charge the battery pack 2 attached to the attachment portion 61 . The charging control circuit 33 determines whether or not the charging capacity of the battery pack 2 is equal to or greater than a predetermined notification determination value TH that is equal to or greater than 70% and less than 100%. When the charge control circuit 33 and the speaker 39 determine that the charge capacity of the battery pack 2 is equal to or greater than the notification determination value TH, the charging control circuit 33 and the speaker 39 notify that effect by sound only for a preset third notification time.

In this manner, the charger 3 notifies when the charge capacity of the battery pack 2 reaches or exceeds the notification determination value TH, which is less than 100%. Therefore, the charger 3 allows the user to remove the battery pack 2 from the charger 3 without making the user wait until the charging capacity of the battery pack 2 reaches 100%. As a result, the charger 3 can restart the work using the battery pack 2 without making the user wait for a long time until the charging of the battery pack 2 is completed, thereby improving the work efficiency of the user. be able to.

Moreover, the charger 3 notifies by sound. Therefore, even when the user is away from the charger 3, the sound output from the charger 3 is transmitted through the air, so that the user can hear the battery pack 2. has become equal to or greater than the notification determination value TH. As a result, while the battery pack 2 is being charged, the charger 3 allows the user to do other work away from the charger 3, further improving the work efficiency of the user. be able to.

Further, the charger 3 notifies only during a preset notification time. Therefore, the charger 3 can reduce power consumption of the charger 3 .
When the charging capacity of the battery pack 2 reaches 100%, the charging control circuit 33 and the speaker 39 notify that effect by sound. The charging control circuit 33 and the speaker 39 are configured to notify that the charging capacity of the battery pack 2 has reached 100% with a sound selected from two types of sounds. Also, the charging control circuit 33 and the speaker 39 are configured to notify that the charging capacity of the battery pack 2 has reached or exceeded the notification determination value TH with one type of sound. As a result, the charger 3 distinguishes between the fact that the charging capacity of the battery pack 2 has reached 100% and the fact that the charging capacity of the battery pack 2 has reached or exceeded the notification judgment value TH, and notifies the user. can be done. Furthermore, the charger 3 notifies that the charging capacity of the battery pack 2 has reached or exceeded the notification determination value TH with one kind of sound. Therefore, the charger 3 can eliminate the operation of selecting the type of sound for notifying that the charging capacity of the battery pack 2 has reached or exceeded the notification determination value TH. can improve sexuality.

The charging control circuit 33 also determines whether the sound output flag F1 is cleared. When the charging control circuit 33 determines that the sound output flag F1 is cleared, the charging control circuit 33 prohibits the speaker 39 from notifying that the charging capacity of the battery pack 2 has reached or exceeded the notification determination value TH. Also, the charge control circuit 33 determines whether or not the smart phone notification flag F2 is cleared. When the charging control circuit 33 determines that the smartphone notification flag F2 is cleared, the charging control circuit 33 prohibits the smartphone 4 from notifying that the charging capacity of the battery pack 2 has reached or exceeded the notification determination value TH. As a result, the charger 3 can suppress the occurrence of a situation in which sound notification is performed in a situation where sound notification is inappropriate, such as at night.

When the charging control circuit 33 and the wireless communication unit 41 determine that the charging capacity of the battery pack 2 is equal to or greater than the notification determination value TH, the charging control circuit 33 and the wireless communication unit 41 wirelessly transmit the second notification command to the smartphone 4 existing outside the charger 3. Send. Thereby, the charging control circuit 33 and the wireless communication unit 41 cause the smartphone 4 to notify by sound that the charging capacity of the battery pack 2 is equal to or greater than the notification determination value TH only during the second notification time.

As a result, even when the user is away from the charger 3, the charger 3 notifies the user carrying the smartphone 4 that the charging capacity of the battery pack 2 has become equal to or greater than the notification determination value TH. can be communicated. Therefore, while the battery pack 2 is being charged, the charger 3 allows the user to do other work away from the charger 3, further improving the user's work efficiency. be able to.

In the embodiment described above, the charging circuit 32 corresponds to the charging section, S50 corresponds to processing as the notification determination section, S90 and S120 correspond to processing as the notification section, and the second and third notification times are equivalent to time.

Further, S180 and S210 correspond to processing as a full charge notification unit, S70 and S100 correspond to processing as a prohibition determination unit and a prohibition unit, the determination conditions of S70 and S100 correspond to prohibition conditions, and the smartphone 4 It corresponds to an external device, and the second notification command corresponds to the notification command.

An embodiment of the present disclosure has been described above, but the present disclosure is not limited to the above embodiment, and can be implemented in various modifications.
For example, in the above-described embodiment, the charger 3 outputs sound from the speaker 39 . However, the charger 3 may be provided with a vibration generator, and instead of outputting sound from the speaker 39, the vibration generator may cause the charger 3 to vibrate.

Moreover, in the above-described embodiment, a form in which sound is output from the speaker of the smartphone 4 is shown. However, the smartphone 4 may be provided with a vibration generator, and the vibration generator may vibrate the smartphone 4 instead of outputting sound from the speaker.
Further, in the above embodiment, the battery 11 in which a plurality of secondary batteries are connected in series is shown. and parallel may be used in combination.

In the above embodiment, a sound selected from two types of sounds is used to notify that the charged capacity has reached 100%, and one type of sound is used to notify that the charged capacity has reached or exceeded the notification determination value TH. I showed the form to do. However, a sound selected from a plurality of types of sounds is used to notify that the charge capacity has reached 100%, and a sound selected from the plurality of types of sounds indicates that the charge capacity has reached or exceeded the notification judgment value TH. You may make it report to the effect. Further, the notification that the charging capacity has reached the notification judgment value TH or more is made with a different kind of sound from among a plurality of types of sounds than the sound that notifies that the charging capacity has reached 100%. good too. As a result, the charger 3 distinguishes between the fact that the charging capacity of the battery pack 2 has reached 100% and the fact that the charging capacity of the battery pack 2 has reached or exceeded the notification judgment value TH, and notifies the user. can be done.

A plurality of functions possessed by one component in the above embodiment may be implemented by a plurality of components, or a function possessed by one component may be implemented by a plurality of components. Also, a plurality of functions possessed by a plurality of components may be realized by a single component, or a function realized by a plurality of components may be realized by a single component. Also, part of the configuration of the above embodiment may be omitted. Also, at least part of the configuration of the above embodiment may be added or replaced with respect to the configuration of the other above embodiment.

In addition to the charger 3 described above, a system having the charger 3 as a component, a program for making a computer function as the charger 3, a non-transitional actual recording medium such as a semiconductor memory recording this program, and charging The present disclosure can also be implemented in various forms such as a device control method.

2 Battery pack 3 Battery charger 4 Smart phone 32 Charging circuit 33 Charging control circuit 39 Speaker 41 Wireless communication unit 61 Mounting unit

Claims (3)

a mounting portion configured to detachably mount a battery pack;
a charging section configured to charge the battery pack attached to the attachment section;
a notification determination unit configured to determine whether or not the charge capacity of the battery pack is equal to or greater than a predetermined notification determination value that is 70% or more and less than 100%;
When the notification determination unit determines that the charge capacity of the battery pack is equal to or greater than the notification determination value, the fact is notified by sound or vibration only for a preset notification time. and
a full charge notification unit configured to notify by sound when the charge capacity of the battery pack reaches 100%;
with
The notification unit notifies by sound,
The full charge notification unit is configured to notify with a sound selected from a plurality of types of sounds,
The charger , wherein the notification unit is configured to perform notification with one type of sound . The charger according to claim 1 ,
a prohibition determination unit configured to determine whether or not a preset prohibition condition is satisfied;
and a prohibition unit configured to prohibit notification by the notification unit when the prohibition determination unit determines that the prohibition condition is satisfied. The charger according to claim 1 or claim 2 ,
The notification unit wirelessly transmits a notification command to an external device existing outside the charger when the notification determination unit determines that the charge capacity of the battery pack is equal to or greater than the notification determination value. Thus, the battery charger notifies the external device that the charge capacity of the battery pack is equal to or greater than the notification determination value by sound or vibration only during the notification time.

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