JP2018191385A - Electrical apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrical apparatus including a function which notifies a user of battery replacement timing in a simple structure.SOLUTION: The present invention relates to an electrical apparatus including a function which notifies a user of battery replacement timing. The electrical apparatus comprises: a detection part which detects the replacement timing of a battery on the basis of at least either the number of times of charging the battery or output properties of the battery; and a notification part which notifies the user of the detected replacement timing.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electric device, and more particularly, to an electric device having a function of notifying a battery replacement time.

  As a background art of the present invention, the relationship between the charge / discharge current of the battery and the battery voltage is measured, and the relationship between the measured current and the voltage is expressed as a relational expression between the current and the voltage with the remaining battery capacity as a parameter. A battery is known that detects the remaining capacity of the battery and obtains the charging time of the battery (see Patent Document 1).

JP-A-10-132911

  However, in recent years, there has been an increase in the number of electric devices that use batteries as a power source. Knowing not only the battery charging time, but also the life of the battery, that is, the replacement time, properly replacing the battery and making the electric device always normal There is an increasing demand for operation.

  The present invention has been made in consideration of such circumstances, and provides an electric device with a notification function that can notify a battery replacement time with a simple configuration.

  The present invention is an electric device having a function of notifying the replacement time of a battery, and a detection unit that detects the replacement time of the battery based on at least one of the number of times the battery is charged and the output characteristics of the battery. An electrical apparatus provided with the alerting | reporting part which alert | reports replacement time is provided.

  According to the present invention, the electric device itself has a function of detecting and notifying the battery replacement time based on at least one of the number of times the battery is charged and the output characteristic of the battery. The equipment can always operate normally.

It is an external appearance perspective view which shows the electric vacuum cleaner of Embodiment 1 of this invention. It is principal part sectional drawing of the suction inlet of the vacuum cleaner shown in FIG. It is a block diagram which shows the control circuit of the vacuum cleaner shown in FIG. It is a perspective view which shows the battery of Embodiment 1 of this invention. It is a perspective view which shows the battery and charger of Embodiment 1 of this invention. It is a block diagram which shows the control circuit of the charger shown in FIG. It is a FIG. 3 corresponding view which shows the modification 1 of Embodiment 1 of this invention. FIG. 6 is a view corresponding to FIG. 3 and showing a second modification of the first embodiment of the present invention. It is an external appearance perspective view which shows the battery of Embodiment 2 of this invention. FIG. 10 is a block diagram showing a control circuit for the battery shown in FIG. 9. It is a perspective view which shows the battery and charger of Embodiment 3 of this invention. It is a block diagram which shows the control circuit of the charger shown in FIG.

  A feature of the electrical device of the present invention is an electrical device having a function of notifying the replacement time of the battery, and detecting the replacement time of the battery based on at least one of the number of times the battery is charged and the output characteristics of the battery And a notifying unit for notifying the detected replacement time.

  The detection unit includes a charge detection unit that detects a charging operation of a battery, an integration unit that integrates the number of detected charging operations as the number of charging times, and a comparison unit that compares the accumulated number of charging times with a predetermined number of times. It is preferable to set the replacement time when the accumulated number of charging times exceeds a predetermined number.

  A current detector for detecting a discharge current of the battery, wherein the detection unit measures a discharge time based on a time measuring unit for measuring the discharge time of the battery, and the discharge current and the discharge time until the output voltage of the battery decreases to a predetermined voltage; And a comparison unit that compares the calculated discharge amount with a predetermined capacity, and when the calculated discharge amount becomes equal to or less than the predetermined capacity can be set as the replacement time.

  The detection unit includes a voltage comparison unit that compares the output voltage of the battery with a predetermined voltage, a time measurement unit that measures the time until the output voltage of the battery when the power is supplied to the predetermined load decreases to the predetermined voltage, A time comparison unit that compares the measured time with a predetermined time, and the time when the measured time falls below the predetermined time may be set as the replacement time.

  The detection unit further includes a mounting unit for mounting the battery, an identification information reading unit for reading identification information of the battery mounted on the mounting unit, and a charging unit for charging the mounted battery. Is provided with an integration unit that integrates the number of times of charging the battery of the charging unit for each identification information, and a comparison unit that compares the accumulated number of times of charging with a predetermined number of times, and when the accumulated number of times of charging exceeds a predetermined number of times May be the replacement time. The identification information includes a bar code or an ID stored in an IC tag, the shape of the battery itself, and the like.

  The electrical equipment here refers to household electrical equipment such as vacuum cleaners, batteries, chargers, cordless irons, radios and televisions, portable office machines and medical equipment, as well as various industrial electrical equipment. Including equipment.

  Hereinafter, the present invention will be described in detail by using an embodiment in which a vacuum cleaner, a battery, and a charger are combined as a representative of electric devices. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is an external perspective view showing a vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of a main part of a suction port body of the vacuum cleaner shown in FIG. 1, and FIG. 3 is a diagram of the vacuum cleaner shown in FIG. 4 is a perspective view showing the battery of the first embodiment, FIG. 5 is a perspective view showing the charger of the first embodiment together with the battery, and FIG. 6 shows the control circuit of the charger shown in FIG. It is a block diagram.

  The first embodiment includes the electric vacuum cleaner shown in FIG. 1, the battery shown in FIG. 4, and the charger (FIG. 5) shown in FIG. 5. In this embodiment, the electric vacuum cleaner notifies the battery replacement time. It has a function.

<Configuration of vacuum cleaner>
As shown in FIG. 1, the vacuum cleaner 1 includes a cleaner body 2, a suction port body 40, and a connection pipe 4 that hermetically connects the cleaner body 2 and the suction port body 40.
The vacuum cleaner body 2 is connected to the handle 5 that the user grasps with his / her hand, the input unit 6 and the display unit (notification unit) 6a provided on the handle 5 and the base end of the connection pipe 4 so as to be detachable. The unit 7 is provided.

  A connecting portion 9 is provided at the tip of the connecting pipe 4 to receive the connecting pipe portion 42 of the suction port body 40 and connect the connecting pipe portion 42 in a detachable manner. In addition, the suction port body 40 can swing the connecting pipe portion 42 back and forth with respect to the suction port body 40 in an angle range of about 90 degrees, and can be twisted left and right in an angle range of about 180 degrees. Possible joint-type connecting shaft part 42x is provided.

  The vacuum cleaner main body 2 includes a dust collection chamber (dust cup) 11 detachably installed, a dust collection filter unit 12 provided on the downstream side of the dust collection chamber 11, and a motor provided on the downstream side of the dust collection filter unit 12. An electric blower 13 incorporating M2 and a battery 17 are provided.

  The battery 17 is detachably mounted on the rear part of the cleaner body 2 and supplies power to a motor M1 (FIG. 2) for a rotating brush and a motor M2 of the electric blower 13 which will be described later.

  As shown in FIG. 2, the suction port body 40 includes a suction port 41 provided in the bottom plate portion 41a and extending in the left-right direction, a suction channel (not shown) connecting the suction port 41 and the connection pipe portion 42, and a suction port. The mouth 41 is provided with a rotating brush 43 rotatably provided on an axis extending in the left-right direction, a motor M1 for driving the rotating brush 43, and a wheel 54.

  As shown in FIG. 2, the motor output gear 50 fixed to the output shaft 46 of the motor M <b> 1 and the gear portion 58 fixed to the rotation shaft of the rotary brush 43 are coupled by a timing belt 48.

  In such a configuration, when the user performs a starting operation at the input unit 6 (FIG. 1), the motor M1 for the rotating brush and the motor M2 of the electric blower 13 are driven. When the suction port body 40 is moved on the floor surface, dust-containing air is sucked from the suction port body 40 by the electric blower 13 through the connection pipe 4, the dust collection chamber 11, and the dust collection filter unit 12.

  Accordingly, relatively large dust is accumulated in the dust collecting chamber 11, fine dust (dust) is captured by the dust collecting filter unit 12, and the purified air is exhausted from the exhaust port on the side surface of the cleaner body 2. The And if stop operation is performed in the operation part 6, the motor M2 which drives the electric blower 13, and the motor M1 for rotary brushes will stop, and cleaning work will be complete | finished.

<Vacuum cleaner control circuit and battery replacement time notification function>
FIG. 3 is a block diagram showing a control circuit of the electric vacuum cleaner shown in FIGS. 1 and 2.
As shown in FIG. 3, the control circuit of the vacuum cleaner 1 shown in FIGS. 1 and 2 includes motors M1 and M2 that respectively drive the rotating brush 43 and the electric blower 13, a battery 17 that outputs DC power, An input unit 6 for inputting operating conditions and setting conditions of the vacuum cleaner 1, motor driver circuits 23 and 24 for driving the motors M 1 and M 2, respectively, and motor driver circuits 23 and 24 for receiving control signals from the input unit 6. And a control unit 25 for controlling the motors M1 and M2 as described above.

  The battery 17 includes charge / discharge terminals 21p and 21n. The charge / discharge terminals 21p and 21n are connected to the power receiving terminals 22p and 22n of the cleaner body 2 when the battery 17 is attached to the cleaner body 2 as shown in FIG. Each is removably connected.

  The control unit 25 includes a microcomputer including a CPU, ROM, RAM, and the like. The detection unit 26 that detects the replacement time of the battery 17 based on the number of times the battery 17 is charged is configured by the software, and the detected “replacement time” "Is notified to the user via the display section (notification section) 6a.

  For the display unit (notification unit) 6a, a liquid crystal display panel, an LED indicator lamp, or a sounding body such as a buzzer is used.

  The detection unit 26 includes a charge detection unit 27 that detects the charging operation of the battery 17, an integration unit 28 that integrates the number of detected charging operations as the number of charging times, and a comparison unit 29 that compares the accumulated number of charging times with a predetermined number of times. When the accumulated number of times of charging exceeds a predetermined number (for example, 200 times), the replacement time of the battery 17 is set.

This is based on the principle that the replacement time (life) of a battery is determined by the number of times of charging.
In addition, since the battery 17 is removed from the cleaner body 2 and charged, the charge detection unit 27 performs an attaching / detaching operation of the battery 17 with respect to the cleaner body 2, that is, a power supply stop / start operation of the battery 17 to the cleaner body 2. It is detected as a charging operation.
However, in this case, since a detaching operation without a charging operation may be mistakenly accumulated as the number of times of charging, a circuit for detecting and storing an actual charging operation from the charger is to be avoided. It may be built in the battery 17 itself, and the accumulating unit 28 may accumulate the charging operation detected by the battery 17 when the battery 17 is attached to the cleaner body 2.

  Further, the control unit 25 detects the time when the output voltage of the battery 17 is lowered to a predetermined voltage in a range that does not cause overdischarge as the charging time of the battery, and displays it as “charging time” on the display unit 6a. Yes. It should be noted that “charge time” may be displayed when the output voltage of the battery 17 has decreased a predetermined number of times to a predetermined voltage in a range where overdischarge does not occur, or when it has decreased a plurality of times within a predetermined period.

<Configuration of battery and charger>
4 and 5 are perspective views showing the battery 17 and the charger 60 of this embodiment. As shown in FIG. 4, the battery 17 has a substantially rectangular parallelepiped shape and includes rectangular plate-shaped charge / discharge terminals 21p and 21n exposed from the bottom surface to the outside.

  As shown in FIG. 5, the charger 60 has a substantially rectangular parallelepiped shape, includes a notification unit (liquid crystal display panel) 35 a on the upper surface, and includes a battery mounting unit 61 formed in a concave shape from the upper surface to the front surface. Prepare.

  At the time of charging, the battery 17 is inserted and mounted in the arrow direction from the upper side of the charger 60 to the battery mounting portion 61 as shown in FIG. Since the power supply terminals 20p and 20n are provided at the bottom of the battery mounting portion 61, when the battery 17 is mounted, they are mechanically and electrically connected to the charge / discharge terminals 21p and 21n (FIG. 4) of the battery 17, respectively. Touch.

  FIG. 6 is a block diagram showing a control circuit of the charger 60. As shown in the figure, the charger 60 includes a plug 36 connected to the outlet of the commercial AC power supply 100, a power converter 37 that converts AC power supplied through the plug 36 into DC power, and power conversion. An output adjustment unit 38 that adjusts the output of the unit 37 to match the current / voltage characteristics of the battery 17 and supplies the output to the battery 17 is provided.

  The charger 60 further includes a current detector (for example, a shunt resistor) 30 that detects a charging current supplied to the battery 17 and an output of the current detector 30 to control the output of the output adjusting unit 38 and the battery. The control part 25a which detects 17 full charge and outputs it to the alerting | reporting part 35a is provided. The control unit 25a is composed of a microcomputer.

  In the charger 60, when the plug 36 is connected to a commercial AC power source and the battery 17 removed from the cleaner body 2 is attached to the battery attachment portion 61, the power conversion portion 37 and the output adjustment portion 38 connect the battery 17 to the battery 17. When charging is performed and the battery is fully charged, the notification unit 35a notifies the user of “full charge”.

<Battery charging and replacement work>
In the configuration of the first embodiment, when the user performs a cleaning operation using the electric vacuum cleaner 1 (FIG. 1) and “charge time” is displayed on the display unit 6 a, the battery 17 is connected to the main body of the vacuum cleaner. 2 and is attached to the charger 60 (FIG. 5) for charging. When “not fully charged” is notified to the notification unit 35 a of the charger 60, the battery 17 is detached from the charger 60 and attached to the cleaner body 2.

  In the vacuum cleaner main body 2, it is determined that one charge is performed each time the battery 17 is attached, and the number of times of attachment is accumulated as the number of times of charge. When the integrated value reaches a predetermined number of times (200 times in this embodiment), “replacement time” is displayed on the display unit 6a.

  The user knows the replacement time of the battery 17 from the display and replaces it with a new one, and operates the input unit 6 to reset the integrated value of the number of times of charging in the integrating unit 28 (FIG. 3) to zero. In this way, the battery 17 is charged and replaced. In this case, identification information such as ID is attached to the battery 17, and the identification information reading unit is provided in the cleaner body 2, and the accumulation unit 26 accumulates and stores the number of times of charging for each different battery. If the number of times exceeds a predetermined number, the “replacement time” may be set. In addition, when the storage capacity reaches the maximum, the accumulating unit 28 is preferably deleted from the oldest ones.

[Modification 1]
FIG. 7 is a diagram corresponding to FIG. 3, illustrating a first modification of the first embodiment.
In this modification, the control unit 25 and the detection unit 26 (FIG. 3) of the first embodiment are replaced with the control unit 25b and the detection unit 26a, respectively, and a current detector (shunt) that detects the discharge current of the battery 17 is used. Resistor) 30 is provided.

  The detector 26a includes a timer 27a that measures the discharge time of the battery 17, a voltage comparator 28c that compares the output voltage of the battery 17 with a predetermined voltage, and discharge until the output voltage of the battery 17 decreases to a predetermined voltage. A discharge amount calculation unit 28a that calculates the discharge amount (Ah) from the current and the discharge time and a comparison unit 29a that compares the calculated discharge amount and the predetermined capacity P (Ah) are provided. The time when the battery 17 is changed is set as the replacement time of the battery 17.

  This is because the battery replacement time is determined using the principle that when the battery approaches the replacement time (life), the amount of discharge with respect to the decrease in the output voltage is reduced.

Accordingly, in the first modification, during the cleaning operation, the detection unit 26a measures the discharge time of the battery 17, that is, the cleaning operation time, by the time measuring unit 27a, and compares the output voltage of the battery 17 and the predetermined voltage by the voltage comparison unit 28c. The discharge amount is calculated by the discharge amount calculation unit 28a from the discharge current and the discharge time until the output voltage of the battery 17 decreases to the predetermined voltage, and the calculated discharge amount and the predetermined capacity P are compared by the comparison unit 29a. When the discharged amount becomes equal to or less than the predetermined capacity P, “replacement time” is displayed on the display unit 6a.
In this “replacement time”, when the cumulative number of times that the discharge amount becomes equal to or less than the predetermined capacity P has reached the predetermined number of times, or the phenomenon that the discharge amount becomes equal to or less than the predetermined capacity P occurs multiple times within a predetermined time Sometimes it is good.
When the vacuum cleaner 1 has a plurality of operation modes and the power consumption, that is, the load current differs depending on the operation mode, it is necessary to integrate the discharge amount corresponding to the difference in the load current for each mode. .
For example, when the first mode (load current I1) is operated for a time T1, and the second mode (load current I2) is operated for a time T2,
I1 × T1 + I2 × T2 ≦ P (predetermined capacity)
The time when it becomes is determined as the replacement time.

[Modification 2]
FIG. 8 is a diagram corresponding to FIG. 3, illustrating a second modification of the first embodiment.
In this modification, the control unit 25 and the detection unit 26 (FIG. 3) of the first embodiment are replaced with a control unit 25c and a detection unit 26b, respectively.

  The detection unit 26b includes a voltage comparison unit 28b that compares the output voltage of the battery 17 with a predetermined voltage, and a time T until the output voltage of the battery 17 when the power is supplied from the battery 17 to the predetermined load. A time measuring unit 27b for measuring time and a time comparing unit 29b for comparing the measured time T with the predetermined time Tz are provided, and the time when the measured time T becomes equal to or less than the predetermined time Tz is set as the replacement time of the battery 17.

  This is based on the principle that when the battery is near the replacement time (life), the output voltage drop rate increases when a constant current is supplied to the load, that is, the output voltage drop increases with respect to the discharge amount. The battery replacement time is determined.

Therefore, in the modified example 2, when the cleaning operation is started, the detection unit 26b compares the output voltage of the battery 17 with the predetermined voltage by the voltage comparison unit 28b, and the output voltage of the battery 17 is the predetermined voltage during the cleaning operation. The time T until the time T decreases to the time T is measured by the time measuring unit 27b, the time measured T and the predetermined time Tz are compared by the time comparing unit 29b, and when the time T is less than the predetermined time Tz, the display unit 6a displays “ “Replacement time” is displayed.
This “replacement time” is also affected by the load due to operation and the environmental temperature of operation, so when the accumulated number of times when the time T is less than or equal to the predetermined time Tz has reached a predetermined number, It may be when the phenomenon that T becomes equal to or less than the predetermined time Tz occurs a plurality of times within a predetermined time.
Moreover, when the vacuum cleaner 1 has a plurality of operation modes and the power consumption differs depending on the operation mode, it is necessary to integrate the operation time weighted by the difference in power consumption for each mode.
For example, when the first mode (load current I1) is operated for a time T1, and the second mode (load current I2) is operated for a time T2, the weighting coefficients for the first and second modes are K1 and K2, respectively. Then
T = K1 × T1 + K2 × T2 ≦ Tx
The time when it becomes is determined as the replacement time.

(Embodiment 2)
In the second embodiment, out of the combination of the electric vacuum cleaner, the battery, and the charger, the battery itself has a notification function of the battery replacement time.

  FIG. 9 is a perspective view showing a battery 17a according to Embodiment 2 of the present invention. As shown in the figure, the battery 17a has a shape equivalent to that of the battery 17 of the first embodiment, and includes rectangular charge / discharge terminals 21p and 21n exposed to the outside on the bottom surface, and a notification unit (display) on the top surface. Panel) 35. The battery 17a includes a battery body and a case that houses the battery body.

  FIG. 10 is a block diagram of a control circuit mounted on a control board built in the case of the battery 17a shown in FIG. The control circuit includes a current detector 30a that detects a charging / discharging current of the battery 17a, a control unit 25d including a microcomputer, and a notification unit 35.

  The control unit 25d includes a microcomputer including a CPU, a ROM, a RAM, and the like. The detection unit 31 that detects the replacement time of the battery 17a based on the number of times the battery 17a is charged is configured by the software, and the detected replacement time is determined. The user is notified via the notification unit 35.

  The detection unit 31 includes a charge detection unit 32 that detects the charging operation of the battery 17a (connection operation to the charger 60) based on the output of the current detector 30a, and an integration unit 33 that integrates the detected number of charging operations as the number of times of charging. And a comparison unit 34 that compares the accumulated number of times of charging with a predetermined number of times, and when the accumulated number of times of charging exceeds a predetermined number of times (for example, 200 times) is set as the “replacement time” of the battery 17a. Yes.

  This is based on the principle that the replacement time (life) is determined by the number of times of charging the battery. In this embodiment, as described above, the connection operation to the charger 60 is detected by the output of the current detector 30a, that is, when the charging current flows into the battery 17a. However, in order to avoid the momentary connection operation of the battery 17a to the charger 60 being detected as the charging operation, the charging current flows into the battery 17a for a predetermined time or the battery after being connected to the charger 60. The charging operation (connection operation) may be detected depending on whether the terminal voltage of 17a has reached a higher voltage than before charging.

  As described above, in the second embodiment, since the battery 17a itself has a replacement time detection function, the electric vacuum cleaner and the charger do not need to have the function.

(Embodiment 3)
In Embodiment 3 of this invention, a charger is equipped with the alerting | reporting function of the replacement time of a battery among the combinations of a vacuum cleaner, a battery, and a charger.

  FIG. 11 is a perspective view showing the battery 17b and the charger 60a of the third embodiment. As shown in the figure, the battery 17b is obtained by attaching a bar code 62 adjacent to the charge / discharge terminals 21p and 21n on the bottom surface of the battery 17 (FIG. 4) of the first embodiment. The bar code 62 represents the ID of the battery 17b.

  The charger 60a is provided with a notification unit 35a on the upper surface. An ID reading unit (barcode reader) 39 is installed on the bottom of the battery mounting unit 61 adjacent to the power supply terminals 20p and 20n, and reads the barcode 62 of the battery 17b mounted on the battery mounting unit 61. ing.

  FIG. 12 is a block diagram of a control circuit built in the case of the charger 60a shown in FIG. As shown in the figure, the charger 60a converts the plug 36 connected to the outlet of the commercial AC power source 100 and the AC power supplied via the plug 36 into DC power, like the charger 60 shown in FIG. A power conversion unit 37 that converts the power into the battery 17b, and an output adjustment unit 38 that adjusts the output of the power conversion unit 37 to match the current / voltage characteristics of the battery 17b and supplies the battery 17b for charging.

  The charger 60a further controls a current detector 30b that detects a charging current supplied to the battery 17b, an output of the current detector 30b, controls an output of the output adjustment unit 38, and detects a full charge of the battery 17b. And a control unit 25e that outputs to the notification unit 35a. The control unit 25e is composed of a microcomputer.

  In the charger 60a, when the plug 36 is connected to a commercial AC power source and the battery 17b detached from the cleaner body 2 is attached to the battery attachment portion 61 (FIG. 11), the barcode (ID) 62 is read as an ID. When the battery 17b is charged by the power conversion unit 37 and the output adjustment unit 38 and is fully charged, the notification unit 35a notifies the full charge.

The control unit 25e further includes a detection unit 31a that detects the battery replacement time based on the number of times the battery 17b has been charged.
The detection unit 31a includes an integration unit 33a that integrates the number of times of charging the battery 17b for each ID and a comparison unit 34a that compares the integrated number of times of charging with a predetermined number of times. The notification unit 35a is notified of the “replacement time”.

This is based on the principle that the replacement time (life) of a battery is determined by the number of times of charging.
As described above, in the third embodiment, since the charger has a battery replacement timing detection function, the vacuum cleaner and the battery do not need to have the function.
In this embodiment, the charger 60a reads the ID indicated by the barcode 62 of the battery 17b by the ID reading unit 39. However, like the battery 17a of the second embodiment, the control board is built in, and A ROM may be mounted on the control board to store an ID, and the ID may be read by the charger 60a via an appropriate communication means.
Alternatively, an IC tag may be attached to the battery 17b instead of the barcode 62, and the charger 60a may read it without contact.
Further, information necessary for calculating the replacement time (number of times of charge, voltage drop time, amount of discharge, etc.) is stored in advance in the ROM built in the battery 17b as battery specific information, and the charger 60a transmits the specific information to an appropriate communication. The replacement time may be calculated by reading through means or the like. In this case, even when various types of batteries having different capacities and characteristics, such as a large capacity battery, are used, it is possible to correctly notify each battery of the replacement time.

(Embodiment 4)
In this embodiment, the vacuum cleaner main body further includes a communication unit, and battery information and operation information for calculating the battery replacement time are collected together with battery identification information in a server on the Internet.

  The server calculates the replacement time of the battery from the collected information, and notifies the replacement time via the communication unit when it is determined that the replacement time has been reached. Alternatively, the replacement time is notified to a device or notification means associated with the user (user) of the vacuum cleaner. It should be noted that any means and method described in the first to third embodiments and the first and second modifications may be used to calculate the battery replacement time in the server.

  In this embodiment, since the server has a function for calculating the replacement time of the battery, the vacuum cleaner and the battery do not need to have the function. Moreover, since the form which is not restricted to a vacuum cleaner is also possible for the notification destination, it is possible to select that the vacuum cleaner main body is not provided with a display unit (notification unit).

  Furthermore, when notifying the user, it is possible to provide a wide variety of notification contents, such as suggesting the purchase of a replacement battery and suggesting a change to a large-capacity battery at the same time as notifying the replacement time.

    DESCRIPTION OF SYMBOLS 1 Vacuum cleaner, 2 Vacuum cleaner main body, 4 Connection pipe, 5 Handle, 6 Input part, 6a Display part, 7 Connection pipe, 9 Connection part, 11 Dust collection chamber, 12 Dust collection filter part, 13 Electric blower, 17, 17a, 17b battery, 20p, 20n power supply terminal, 21p, 21n charge / discharge terminal, 22p, 22n power reception terminal, 23, 24 motor driver circuit, 25, 25a, 25b, 25c, 25d control unit, 26, 26a, 26b detection unit 27 Charge sensing unit 27a, 27b Timing unit, 28 Integration unit, 28a Calculation unit, 28b Voltage comparison unit, 29, 29a Comparison unit, 29b Time comparison unit, 30, 30a, 30b Current detector, 31, 31a detection unit, 32 Charge sensing unit, 33, 33a Integration unit, 34, 34a Comparison unit, 35, 35a Notification unit, 36 plug, 37 Power conversion unit, 38 Output adjustment unit, 39 ID Take-in part, 40 Suction port, 41 Suction port, 41a Bottom plate part, 42 Connection pipe part, 42x Connection shaft part, 43 Rotating brush, 46 Output shaft, 48 Timing belt, 50 Motor output gear, 54 Wheel, 58 Gear part, 60,60a charger, 61 battery-mounting part, 62 bar code, M1, M2 motor, 100 commercial AC power supply

Claims (5)

  An electric device having a function of notifying the battery replacement time, a detection unit for detecting the battery replacement time based on at least one of the number of times the battery is charged and the output characteristic of the battery, and a notification of the detected replacement time An electrical device comprising a notification unit.   The detection unit includes a charge detection unit that detects a charging operation of a battery, an integration unit that integrates the number of detected charging operations as the number of charging times, and a comparison unit that compares the accumulated number of charging times with a predetermined number of times. The electric device according to claim 1, wherein the replacement time is a time when the accumulated number of times of charging exceeds a predetermined number.   A current detector for detecting a discharge current of the battery, wherein the detection unit measures a discharge time based on a time measuring unit for measuring the discharge time of the battery, and the discharge current and the discharge time until the output voltage of the battery decreases to a predetermined voltage; 2. The electricity according to claim 1, further comprising: a discharge amount calculation unit that calculates a discharge amount; and a comparison unit that compares the calculated discharge amount with a predetermined capacity, wherein the replacement time is a time when the calculated discharge amount is equal to or less than a predetermined capacity. machine.   The detection unit includes a voltage comparison unit that compares the output voltage of the battery with a predetermined voltage, a time measurement unit that measures the time until the output voltage of the battery when the power is supplied to the predetermined load decreases to the predetermined voltage, The electric device according to claim 1, further comprising: a time comparison unit that compares the measured time with a predetermined time, wherein the time when the measured time becomes equal to or less than the predetermined time is the replacement time.   A loading unit for placing the battery; a reading unit for reading identification information of the battery placed on the placing unit; and a charging unit for charging the placed battery. A replacement unit that integrates the number of times of charging the battery for each piece of identification information and a comparison unit that compares the accumulated number of times of charging with a predetermined number of times. The electric device according to claim 1.

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