JP2020193397A - Electrical equipment - Google Patents

Abstract

To provide highly convenient electrical equipment.SOLUTION: It is provided with an equipment body 5 having an output unit and a battery pack 10 that can be attached to and detached from the equipment body, the battery pack 10 has a wireless communication unit (including a wireless antenna 50a) capable of wireless communication with external devices (air volume control device 8, collective management device 6), and a control unit 50 that controls wireless communication with the external device, the control unit 50 is configured so that the operation of the output unit can be changed by wireless communication with the external devices 8,6 while the output unit is in an operating state.SELECTED DRAWING: Figure 1

Description

The present invention relates to electrical equipment, such as a blower used to blow air into clothes and clothes equipped with such blowers.

The following Patent Document 1 discloses a blower device as an electric device having a fan main body that sends air to the inside of clothes worn by an operator and a power supply unit that supplies electric power to the fan main body. Such a blower is effective as a measure against the heat of workers at construction sites and the like. Further, Patent Document 2 below discloses a power tool whose setting parameters for driving the power tool can be changed. Further, Patent Document 3 below discloses a battery pack including a display unit for displaying the remaining capacity of the battery cell.

JP-A-2018-104845 Japanese Unexamined Patent Publication No. 2014-018868 JP-A-2010-170779

Patent Document 1 has a configuration in which the output and operation (air volume and rotation speed in the case of a fan) and drive mode of an output unit (for example, a fan) are changed by an operation unit wiredly connected by a cord, and therefore, from the viewpoint of convenience. There was room for improvement (first issue). In Patent Document 2, since the setting parameters of the electric device cannot be changed when the electric device is in operation, there is room for improvement from the viewpoint of convenience (second problem).
Further, in Patent Document 3, since the remaining capacity of the battery cell is only displayed, it is not possible to manage the usage status of the electric device, for example, the remaining driveable time of the output unit (for example, a fan), and there is room for improvement from the viewpoint of convenience. There was (third issue).
In addition, wireless communication using a communication device such as a smartphone other than the operation unit that is wiredly connected to the output unit (fan body) for the operation of the output unit of the electrical device (in the case of a blower, the air volume and rotation speed of the fan) If it can be changed by, it is conceivable to give the electric device (device body) and the battery pack a wireless communication function. In Patent Document 2, a communication unit is provided in the housing of an electric device (power tool). On the other hand, it is also conceivable to give the battery pack a wireless communication function. In this case, the following fourth problem arises. That is, it is desirable that the wireless antenna for realizing the wireless communication function is arranged far from the metal part of the battery pack in consideration of the influence on communication. On the other hand, if the size of the battery pack is reduced, it becomes difficult to move the wireless antenna away from the metal part.

The present invention has been made in recognition of such a situation, and an object of the present invention is to solve the above-mentioned first, second, or / and third problems and to provide a highly convenient blower. ..

One aspect of the present invention is an electrical device. This electrical device
The main body of the device that has an output unit
A battery pack that can be attached to and detached from the device body is provided.
The battery pack has a wireless communication unit capable of wireless communication with an external device and a control unit for controlling wireless communication with the external device.
The control unit is configured so that the operation of the output unit can be changed by wireless communication with the external device while the output unit is operating.

It has a drive circuit that supplies a drive voltage to the output unit.
The control unit may be configured to change the operation of the output unit by changing the output voltage from the drive circuit.

A wireless control unit that integrates the wireless communication unit and the control unit is configured.
The wireless communication unit has a wireless antenna that receives a signal from the external device.
The control unit may be configured to control at least one of discharge control, charge control, and protection control of the battery pack.

The drive circuit includes a DC converter unit that transforms the voltage of the battery pack, an inductor connected to the power supply line of the DC converter unit, and a capacitor connected between the output side of the inductor and ground. ,
The DC converter unit includes a plurality of first switching elements connected in series between the power supply line and ground.
The capacitor may be charged with a desired voltage by the switching operation of the plurality of first switching elements.

The drive circuit and the control unit may be configured as shown in (1) or (2) below.
(1) The drive circuit includes an output voltage adjusting circuit including a plurality of resistors and a plurality of second switching elements connected in series to each of the plurality of resistors.
The control unit is configured to switch the state of the plurality of second switching elements based on a signal from the external device.
(2) The drive circuit has an output voltage adjusting circuit including a resistor and a third switching element connected in series to the resistor.
The control unit is configured to perform PWM control of the third switching element based on a signal from the external device.

The output unit has a brushless motor and
The drive circuit includes an inverter circuit including a plurality of fourth switching elements.
The control unit may be configured to perform PWM control of the plurality of fourth switching elements based on a signal from the external device.

The external device may be configured to be able to notify or manage the remaining driveable time of the output unit driven by the battery pack mounted on the device body.

The external device may be configured to be able to notify when the remaining driveable time of the drive unit driven by the battery pack mounted on the device body is less than or equal to a predetermined time.

The remaining driveable time may be calculated based on the remaining capacity of the battery pack and / or the operating state of the output unit.

The remaining driveable time includes the first and second remaining driveable times.
The first remaining driveable time is calculated based on the remaining capacity of the battery pack and the current operating state of the output unit.
The second remaining driveable time may be configured to be calculated based on the remaining capacity of the battery pack and the maximum operating state of the output unit.

The operation of the output unit may be configured to be changeable according to any of an external temperature, an operator's response or a peripheral temperature, and the temperature of the battery pack.

The operation of the output unit can be changed by either an automatic change mode that automatically changes according to any of the temperatures and a manual change mode that manually changes regardless of any of the temperatures. You may.

The operation of the output unit may be adjustable according to the drive end time of the output unit.

It may be configured to notify when at least one of the remaining driveable time and the operation of the output unit is abnormal.

The external device has a wireless communication function, and has a first communication device capable of wireless communication with the wireless communication unit of the battery pack.
The first communication device can wirelessly communicate with a battery pack different from the battery pack, and may be configured to manage an output unit different from the output unit.

At least one of the first communication device, the battery pack, and the output unit may have a notification unit that notifies the remaining driveable time of the output unit and the state of the output unit.

The first communication device may be configured to manage the position information of the battery pack.

The external device has a wireless communication function, and has a second communication device capable of wireless communication with the wireless communication unit of the battery pack.
The second communication device is configured so that the operation of the drive unit can be changed by wireless communication.
The first communication device and the second communication device may be configured to enable wireless communication with each other.

At least one of the first communication device, the second communication device, and the battery pack has a notification unit that notifies the remaining driveable time of the output unit that can be driven by the battery pack and the operating state of the output unit. You may.

The device main body may have an operation unit operated by an operator and a control unit that controls the output unit in response to the operation of the operation unit.

The device body is clothing having a fan or heater as the output unit.
The control unit may be configured to be able to change the rotation speed of the fan, the air volume, the voltage supplied to the fan, or the temperature of the heater by wireless communication with the external device.

One aspect of the invention is clothing. This garment is worn by the worker
A temperature control device for adjusting the ambient temperature of the worker, and
The temperature control device is provided with a removable battery pack.
The battery pack has a wireless communication unit capable of wireless communication with an external device and a control unit for controlling wireless communication with the external device.
The control unit is configured so that the operation of the temperature control device can be changed by wireless communication with the external device.

One embodiment of the present invention is a temperature control device. This temperature control device regulates the ambient temperature of the worker,
The main body of the device that has a fan or heater,
A battery pack that can be attached to and detached from the device body is provided.
The battery pack has a wireless communication unit capable of wireless communication with an external device and a control unit for controlling wireless communication with the external device.
The control unit is configured to be able to change the rotation speed of the fan or the temperature of the heater by wireless communication with the external device.

It should be noted that any combination of the above components and a conversion of the expression of the present invention between methods, systems and the like are also effective as aspects of the present invention.

According to the present invention, it is possible to provide a highly convenient blower.

FIG. 6 is a conceptual diagram of a state in which a blower device as an electric device powered by a battery pack 10 according to an embodiment of the present invention is provided on clothes 9 worn by a worker 4. FIG. 6 is a conceptual diagram showing a state in which an operator 4 changes an output (air volume) of the blower by an air volume adjusting device 8. FIG. 6 is a conceptual diagram showing a state in which a construction manager 3 manages the blower of a plurality of workers 4 by a collective management device 6. Front perspective view of the battery pack 10. A rear perspective view of the battery pack 10. Front view of the battery pack 10. The rear view of the battery pack 10. Right side view of the battery pack 10. Top view of the battery pack 10. The plan view of the battery pack 10 in a state where the upper case 12 is opened. FIG. 9 is a sectional view taken along the line AA of FIG. Bottom view of the battery pack 10. An exploded perspective view of the battery pack 10. A front perspective view of the inside of the case of the battery pack 10. A rear perspective view of the inside of the case of the battery pack 10. Front view of the inside of the case of the battery pack 10. The rear view of the inside of the case of the battery pack 10. The right side view of the inside of the case of the battery pack 10. The left side view of the inside of the case of the battery pack 10. Top view of the inside of the case of the battery pack 10. Bottom view of the inside of the case of the battery pack 10. FIG. 5 is a perspective view of a battery pack according to another embodiment of the present invention in a state in which the directions of the battery cells 11a to 11c are rotated counterclockwise by 90 degrees from the state of FIG. The circuit block diagram of the blower. The circuit diagram which shows the specific configuration example 1 of the discharge circuit 54 of the battery pack 10 of FIG. The circuit diagram which shows the specific configuration example 2 of the discharge circuit 54. The circuit diagram which shows the specific configuration example 3 of the discharge circuit 54. The control flowchart of the battery pack 10. A time chart showing an example of the operation of the configuration example 1 shown in FIG. 24. The simple block diagram of the collective management device 6 and the air volume control device 8. The figure which shows the home screen of the management application of the collective management device 6. The figure which shows the batch check screen of a management application. The figure which shows the air volume check screen of a management application. The figure which shows the operation time check screen of a management application. The figure which shows the pairing screen of a management application. The figure which shows the connection setting screen with the air volume adjustment device 8 of a management application. The figure which shows the screen before connection of the air volume adjustment application of the air volume adjustment apparatus 8. The figure which shows the screen after connection of the application for air volume adjustment. The figure which shows the screen of the air volume adjustment apparatus 8 when the connection request from the collective management apparatus 6 is received. The flowchart which shows the outline of the procedure of connection (pairing) between the battery pack 10 of the blower, and the collective management device 6. FIG. 5 is a flowchart showing a first example of a method of managing the remaining driveable time of the blower by the collective management device 6. FIG. 6 is a conceptual diagram showing a first example of a time management system that collectively manages the remaining driveable time of a plurality of the blowers by the collective management device 6. The flowchart which shows the management method of the air volume of the said blower by the collective management apparatus 6. A table summarizing the relationship between temperature, required air volume, and warning targets. FIG. 5 is a conceptual diagram showing a first example of an air volume management system that collectively manages the air volumes of a plurality of the blowers by the collective management device 6. The flowchart which shows the 2nd example of the management method of the remaining driveable time of the blower by the collective management apparatus 6. The flowchart which shows the outline of the procedure of connection between the collective management device 6 and the air volume control device 8 using the network service. FIG. 6 is a conceptual diagram showing a second example of a time management system that collectively manages the remaining driveable time of a plurality of the blowers by the collective management device 6. FIG. 6 is a conceptual diagram showing a second example of an air volume management system that collectively manages the air volumes of a plurality of the blowers by the collective management device 6. The flowchart which shows the flow of communication between the battery pack 10 of the blower, and the collective management device 6. The flowchart which shows the procedure of changing the output (air volume) of the blower using the air volume adjusting device 8. The flowchart which shows the outline of the procedure of disconnection (pairing) release of the battery pack 10 of the blower, and the collective management device 6. The flowchart which shows the outline of the procedure of connection (pairing) of the battery pack 10 of the blower, and the air volume adjustment device 8. The flowchart which shows the outline of the procedure of disconnection (pairing) of the battery pack 10 of the blower device and the air volume adjustment device 8. The circuit diagram which shows the specific configuration example 4 of the discharge circuit 54.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The same or equivalent components, members, etc. shown in the drawings are designated by the same reference numerals, and redundant description will be omitted as appropriate. Moreover, the embodiment is not limited to the invention but is an example, and all the features and combinations thereof described in the embodiment are not necessarily essential to the invention.

The present embodiment relates to a blower (temperature control device) that can be provided on clothes 9, clothes 9 provided with the blower, and a battery pack 10 as a power source thereof. This blower is an example of an electric device, and as shown in FIG. 1, includes a fan body 5 as a device body and a battery pack 10. The clothes 9 including the fan body 5 may be used as the device body. Further, the blower device including the fan body 5 may be used as the device body, and the combination of the device body and the battery pack may be used as the electric device. The fan body 5 sends air into the clothes 9 worn by the worker 4. The battery pack 10 supplies electric power to the fan body 5. The fan body 5 and the battery pack 10 are connected to each other by a cable 7. One end of the cable 7 is removable from the battery pack 10. That is, the battery pack 10 is removable from the fan body 5. The battery pack 10 has a short-range wireless communication function such as Bluetooth (registered trademark). The battery pack 10 may be capable of transmitting position information using GPS (Global Positioning System) or the like.

As shown in FIG. 2, the worker 4 carries an air volume adjusting device 8 such as a smartphone as a second communication device. The air volume adjusting device 8 has the output of the battery pack 10, that is, the function of adjusting the air volume of the fan body 5, the function of changing the drive mode of the fan body 5, and the function of switching between enabling and disabling the wireless communication function of the battery pack 10. An application for adjusting the air volume is installed. The air volume adjusting device 8 has a short-range wireless communication function such as Bluetooth (registered trademark) and a communication function to a network. The operator 4 can perform short-range wireless communication with the battery pack 10 by the air volume adjusting device 8 to change the output (operation of the air volume, drive mode, etc.) of the fan body 5. The output of the fan body 5 is changed by an operation unit provided in the battery pack 10 or an operation unit provided separately from the battery pack 10 (for example, the fan body 5) in place of or in addition to the case of using the air volume adjusting device 8. It may be possible. Since the output can be changed by the control unit 50b described later provided in the battery pack 10, if the operation unit is provided in the battery pack 10, the output change operation and change control can be performed only by the battery pack 10. Therefore, even if the device main body connected to the battery pack 10 does not have a wireless communication function, wireless communication with an external device is possible, and versatility can be improved. When both the operation unit and the air volume adjusting device 8 are operated, it is preferable to give priority to the operation of the operation unit. Since the operation unit is provided on the clothes 9 worn by the operator, it is unlikely that it will be operated by a third party, but the air volume adjusting device 8 may be placed in a place away from the operator. This is because the possibility of being operated by a third party is higher than that of the operation unit. When a signal is input from both of the control unit 50b, the control unit 50b executes the adjustment of the output voltage described later based on the signal from the operation unit. Further, when a signal from the collective management device 6 described later is input, it is preferable to give priority to control of this signal. The air volume adjusting device 8 can also function as a relay for communication between the batch management device 6 and the battery pack 10 by transmitting the data of the battery pack 10 to the batch management device 6 via the network. The air volume adjusting device 8 may be capable of transmitting position information using GPS or the like. The screen of the air volume adjusting device 8 is an example of the notification unit.

In the present embodiment, as shown in FIG. 3, the construction manager (site supervisor) 3 has, for example, a blower device used by each of the plurality of workers 4 by utilizing the wireless communication function of the battery pack 10. It is collectively managed by one batch management device 6 such as a smartphone as the first communication device. The management is various, for example, management of the remaining driveable time of each blower device, management of whether or not the air volume of each blower device is equal to or higher than the required air volume with respect to the current air temperature. The specific management method will be described later. In order to manage these, a management application is installed in the batch management device 6. The collective management device 6 has a short-range wireless communication function such as Bluetooth (registered trademark) and a communication function to a network. The collective management device 6 and the air volume adjusting device 8 can be connected (communication) to each other via a network. The collective management device 6 may be capable of transmitting location information using GPS or the like. The screen of the collective management device 6 is an example of the notification unit. The collective management device 6 may manage the position information of the battery pack 10 and the air volume adjusting device 8.

The configuration of the battery pack 10 will be described with reference to FIGS. 4 to 21. FIG. 4 defines the front-rear, up-down, and left-right directions of the battery pack 10 that are orthogonal to each other. In the battery pack 10, the left-right direction is an example of the first direction, the front-rear direction is an example of the second direction, and the up-down direction is an example of the third direction. The case of the battery pack 10 is, for example, a combination of the upper case 12 and the lower case 13 which are insulating resin molded bodies, and is formed to be substantially quadrangular in the vertical direction and substantially rectangular in the horizontal direction as a whole. As shown in FIG. 8, the upper case 12 is curved so that the substantially central portion in the front-rear direction, which is the longitudinal direction of the upper case 12, is at the uppermost position (so far from the battery cells 11a to 11c).

The upper case 12 is provided with a button 15 and a display unit 16. In FIG. 9, the buttons 15 and the display unit 16 of the upper case 12 are not shown. The button 15 is an operation unit for pressing the switch 46 shown in FIG. 14 and the like. There are two buttons 15 here, one is a button for switching the air volume of the fan body 5, and the other is a button for switching between enabling and disabling the wireless communication function of the battery pack 10. A button for switching the drive mode of the fan body 5 (strong air volume mode and weak air volume mode, manual air volume change mode and automatic air volume change mode, all of these modes) may be provided. The display unit 16 is a portion that transmits light such as an LED. A plurality of display units 16 are provided to display the charging status of the battery pack 10, the air volume of the blower, the status of the wireless communication function, and the like. From the back surface of the lower case 13, the openings of the charging jack 52 and the discharging jack 55 face rearward. The charging jack 52 is covered with a cover 18 that can be opened and closed. A cable for connecting to the charger can be connected to the charging jack 52. A cable 7 for connecting to the fan body 5 can be connected to the discharge jack 55.

The battery cells 11a to 11c extend in the left-right direction and are arranged in the front-rear direction in the case, that is, in the internal space formed by the upper case 12 and the lower case 13. The battery cells 11a to 11c are partitioned by ribs 13a protruding upward from the inner bottom surface of the lower case 13. The battery cell 11c and the charging jack 52 and the discharging jack 55 are separated by a rib 13b protruding upward from the inner bottom surface of the lower case 13. The number of battery cells may be two or four or more. The substrate 20 is provided above the battery cells 11a to 11c. The length of the substrate 20 in the left-right direction is substantially equal to the length of the battery cells 11a to 11c. A switch 46 and a wireless antenna module 50 as a wireless control unit are provided on the upper surface of the substrate 20 (the surface opposite to the battery cells 11a to 11c). There are two switches 46 here, one is a switch for switching the air volume of the fan body 5 (hereinafter, also referred to as "output changeover switch"), and the other is for enabling / disabling the wireless communication function of the battery pack 10. It is a switch for.

The wireless antenna module 50 is provided at the right end of the substrate 20 and between the battery cells 11a and 11b in the front-rear direction. The right end of the substrate 20 is a position near the ends of the battery cells 11a to 11c in the left-right direction. The space between the battery cells 11a and 11b in the front-rear direction is the range between the central axes of the battery cells 11a and 11b in the front-rear direction and avoiding directly above and in the vicinity of the central axis. Further, the wireless antenna module 50 is arranged at a position avoiding the vicinity of the end portion of the upper case 12 in the front-rear direction. A charging jack 52 and a discharging jack 55 as input / output units are provided on the lower surface of the substrate 20 (the surfaces on the battery cells 11a to 11c side). The charging jack 52 and the discharging jack 55 extend or are located within the existing range of the battery cells 11a to 11c in the vertical direction.

The battery cells 11a to 11c are connected in series with each other and electrically connected to the substrate 20 by the metal tabs 21 to 24. The tab 21 electrically connects the positive electrode of the battery cell 11a to the substrate 20. The tab 23 electrically connects the negative electrode of the battery cell 11a and the positive electrode of the battery cell 11b to each other and electrically connects to the substrate 20. The tab 22 electrically connects the negative electrode of the battery cell 11b and the positive electrode of the battery cell 11c to each other and electrically connects to the substrate 20. The tab 24 electrically connects the negative electrode of the battery cell 11c to the substrate 20. The substrate connection portion 21a of the tab 21 is electrically connected to the right end portion of the substrate 20 in front of the central axis of the battery cell 11a (on the anti-battery cell 11b side). The substrate connection portion 23a of the tab 23 is electrically connected to the left end portion of the substrate 20 between the battery cells 11a and 11b in the front-rear direction. The substrate connection portion 22a of the tab 22 is electrically connected to the right end portion of the substrate 20 between the battery cells 11b and 11c in the front-rear direction. The substrate connection portion 24a of the tab 24 is electrically connected to the left end portion of the substrate 20 between the battery cells 11b and 11c in the front-rear direction.

As shown in FIG. 20, the wireless antenna module 50 communicates wirelessly between the wireless antenna 50a as a wireless communication unit that receives signals from external devices (air volume adjusting device 8 and collective management device 6) and the external device. It has a control unit 50b such as a microcontroller for controlling the above. The wireless antenna 50a is close to the right edge of the substrate 20. In addition to controlling wireless communication, the control unit 50b controls discharge and charge of battery cells 11a to 11c, and controls protection of battery cells 11a to 11c, such as overdischarge protection, overcurrent protection, and high temperature protection. .. In the substrate 20, a predetermined range before and after adjacent to the wireless antenna 50a is a pattern non-forming portion 20a in which a conductor pattern is not formed. In the wireless antenna module 50, the wireless communication unit (including the wireless antenna 50a) and the control unit 50b are integrally configured, but they may be configured separately. Here, one piece means that it is composed of one-chip elements.

A circuit configuration example of the battery pack 10 will be described with reference to FIG. 23. The battery pack 10 includes a battery cell 11 (corresponding to the battery cells 11a to 11c shown in FIG. 14 and the like) which is a secondary battery cell (for example, a lithium battery cell). The SC protector 41 is a protective element for preventing overcharging and overcurrent of the battery cell 11. The power supply circuit 42 converts the output voltage Vbat of the battery cell 11 into the operating voltage Vctl of the control unit 50b or the like and supplies it to the control unit 50b or the like. The cell voltage detection circuit 43 detects each cell voltage of the battery cell 11 and transmits it to the control unit 50b. The current detection circuit 44 detects the output current by the voltage of the resistor R provided in the path of the output current (discharge current or charge current) of the battery cell 11 and transmits the output current to the control unit 50b. The temperature sensor 45 detects the temperature of the battery cell 11 and transmits it to the control unit 50b. Another temperature sensor that detects the air temperature inside the battery pack 10 and another temperature sensor that detects the body temperature of the worker (the temperature around the worker) are provided on the clothes 9, the fan body 5, and the like, and the inside of the battery pack 10 is provided. The air temperature or the body temperature of the worker may be transmitted to the control unit 50b.

The switch 46 as an operation unit receives a switch operation by the user and transmits the switch operation to the control unit 50b. There may be a plurality of switches 46. The switch 46 is a switch for instructing drive / stop of the fan body 5, a switch for switching (adjusting) the output of the fan body 5, a switch for enabling / disabling the wireless communication function, and a switch for switching the drive mode of the fan body 5. , A switch for pairing wireless communication and the like may be included. The LED 53 as a notification unit is for displaying a status, and its lighting is controlled by the control unit 50b. There may be a plurality of LEDs 53.

When the AC adapter connection detection circuit 47 detects the connection of the AC adapter 58 to the charging jack 52, the AC adapter connection detection circuit 47 transmits a start signal to the power supply circuit 42. The charging circuit 51 is, for example, a DC / DC converter, which operates according to the control of the control unit 50b to supply a charging current to the battery cell 11. That is, the charging current is switched (controlled) according to the charging current switching signal from the control unit 50b and supplied to the battery cell 11. Further, the charging circuit 51 starts and stops the supply of the charging current according to the on / off signal from the control unit 50b. The charging circuit 51 converts the DC power input via the charging jack 52 into DC power for charging the battery cell 11. The charging jack 52 is a connection port for an external AC adapter 58. The AC adapter 58 is connected to an external AC power supply 59, converts AC power input from the AC power supply 59 into DC power, and outputs the AC power to the charging jack 52.

The discharge circuit 54 as a drive circuit is, for example, a DC / DC converter, operates according to the control of the control unit 50b, and outputs DC power to be supplied to the fan main body 5 to the discharge jack 55. The discharge jack 55 is a connection port of a cable 7 that connects the fan body 5 and the battery pack 10. The fan body 5 includes a fan and a motor (driving unit or output unit) for driving the fan, and operates with the power supplied from the discharge circuit 54. Since the fan and the motor rotate integrally, they may be combined as a drive unit or an output unit. Further, the fan body 5 may be provided with a control unit for driving and controlling the motor. Further, a heater, which is an example of a temperature control device described later, a volume control unit and a channel switching unit of peripheral devices, and a motor of an electric tool also correspond to an output unit.

The control unit 50b is, for example, a BLE (Bluetooth (registered trademark) Low Energy) module having a built-in microcontroller. The control unit 50b communicates with the collective management device 6 and the air volume adjusting device 8 by short-range wireless communication using the wireless antenna 50a, and operates the entire battery pack 10 such as controlling the charging circuit 51 and the discharging circuit 54. To control. The control unit 50b can control the charging of the battery cell 11 by adjusting the charging current to the battery cell 11 by controlling the charging circuit 51. The control unit 50b can adjust the power supplied to the fan body 5 and adjust the output (air volume) of the fan body 5 by controlling the discharge circuit 54. The control unit 50b has a function of being able to connect at least two or more communication devices at the same time, such as the collective management device 6 and the air volume adjusting device 8.

FIG. 24 is a circuit diagram showing a specific configuration example 1 of the discharge circuit 54. In this example, the discharge circuit 54 includes a DC / DC converter IC 54a, a choke coil (inductor) L, a capacitor (electrolytic capacitor) C, resistors R1 to R5, and switching elements Q3 to Q5 such as FETs. The resistors R1 to R5 and the switching elements Q3 to Q5 form an output voltage adjusting circuit. The DC converter IC 54a includes an internal analog circuit 54b and switching elements Q1 and Q2 such as FETs. The switching elements Q1 and Q2 are connected in series between the power supply line (hereinafter, also referred to as “power supply line Vbat”) to which the output voltage Vbat of the battery cell 11 is supplied and the ground. The gates (control terminals) of the switching elements Q1 and Q2 are connected to the internal analog circuit 54b. The interconnection portion of the switching elements Q1 and Q2 (the source of the switching element Q1 and the drain of the switching element Q2) is connected to one end of the choke coil L. The other end of the choke coil L is connected to one end of the capacitor C and the resistor R1. The other end of the capacitor C is connected to the ground. The voltage across the capacitor C is the output voltage Vout of the discharge circuit 54 and is output to the discharge jack 55. The other end of the resistor R1 is connected to one end of the resistors R2 to R5. The other end of the resistor R2 is connected to the ground. The interconnection portion between the resistors R1 and the resistors R2 to R5 is connected to the internal analog circuit 54b. The other ends of the resistors R3 to R5 are connected to the ground via the switching elements Q3 to Q5. The gates (control terminals) of the switching elements Q3 to Q5 are connected to the control unit 50b. The control unit 50b and the internal analog circuit 54b are connected to each other.

The switching elements Q1 and Q2 perform a switching operation (PWM control) by a drive signal from the internal analog circuit 54b. The output voltage Vbat of the battery cell 11 switched by the choke coil (inductor) L and the capacitor C is smoothed, so that a voltage obtained by lowering the output voltage Vbat of the battery cell 11 appears at both ends of the capacitor C. The voltage Vm of the interconnection portion between the resistors R1 and the resistors R2 to R5 is fed back to the internal analog circuit 54b. The internal analog circuit 54b controls the operations of the switching elements Q1 and Q2 so that the voltage Vm becomes constant. The ratio of the voltage Vm of the interconnection portion between the resistors R1 and the resistors R2 to R5 and the output voltage Vout of the discharge circuit 54 changes depending on the on / off combination of the switching elements Q3 to Q5. That is, the output voltage can be easily changed by switching a plurality of series circuits composed of a combination of a resistor and a switching element. The switching elements Q3 to Q5 are switched on and off by the output voltage control signals V1 to V3 output by the control unit 50b, respectively. The switching elements Q3 to Q5 are turned on when the output voltage control signals V1 to V3 are at a high level, and turned off when the output voltage control signals V1 to V3 are at a low level. FIG. 24 also shows a table showing the relationship between the level combination of the output voltage control signals V1 to V3, that is, the on / off combination of the switching elements Q3 to Q5, and the output voltage Vout of the discharge circuit 54. This table is an example of the case where the resistance value of the resistor R3> the resistance value of the resistor R4> the resistance value of the resistor R5, and the output voltage Vout can be selected from eight stages. If the number of steps of the output voltage Vout may be small, a part of the resistors R3 to R5 and a switching element connected in series with the resistors R3 to R5 may be omitted. In order to increase the number of steps of the output voltage Vout, a series connection circuit of the resistor and the switching element may be added in parallel with the resistor R2. When it is not necessary to make the output voltage Vout highly accurate, it is not necessary to feed back the voltage Vm to the internal analog circuit 54b.

FIG. 25 is a circuit diagram showing a specific configuration example 2 of the discharge circuit 54. In this example, the resistors R3 to R5 and the switching elements Q3 to Q5 of the configuration example 1 of FIG. 24 are replaced with a series connection circuit of the resistors R7 and the switching element Q7 such as FET, which constitutes an output voltage adjustment circuit. .. The gate (control terminal) of the switching element Q7 is connected to the control unit 50b. The control unit 50b applies a PWM (Pulse Width Modulation) signal to the gate of the switching element Q7 to perform PWM control of the switching element Q7. The switching element Q7 is turned on when its gate voltage is high level and turned off when its gate voltage is low level. The PWM signal with a duty of 0% is a low-level signal at all times, and the switching element Q7 is always turned off. The PWM signal with 100% duty is a high-level signal at all times, and the switching element Q7 is always on. A PWM signal having a duty other than 0% and 100% switches the switching element Q7 on and off at a predetermined cycle. The ratio of the ON period of the switching element Q7 in one cycle coincides with the duty ratio of the PWM signal. The higher the duty of the PWM signal applied to the gate of the switching element Q7 by the control unit 50b, the higher the output voltage Vout of the discharge circuit 54. The output voltage Vout can be set in the range of, for example, 5V to 9V.

FIG. 26 is a circuit diagram showing a specific configuration example 3 of the discharge circuit 54. In this example, the internal analog circuit 54b, the resistor R7, and the switching element Q7 of the configuration example 2 of FIG. 25 are eliminated, and the control unit 50b is modified to perform switching control (PWM control) of the switching elements Q1 and Q2. The control unit 50b controls the switching elements Q1 and Q2 so that the voltage Vm becomes a predetermined ratio according to the voltage division ratio of the resistors R1 and R2 with respect to the set value of the output voltage Vout of the discharge circuit 54. When it is not necessary to make the output voltage Vout highly accurate, it is not necessary to feed back the voltage Vm to the control unit 50b.

FIG. 27 is a control flowchart of the battery pack 10. After its own activation, the control unit 50b performs an initialization process to set the output voltage Vout of the discharge circuit 54 to 0V (S71). The control unit 50b is activated by transmitting a start signal to the power supply circuit 42 when the AC adapter 58 or the fan body 5 is connected. Alternatively, the battery pack 10 may be provided with a start switch for the control unit 50b (power supply circuit 42). When the connection with the air volume adjusting device 8 is established (YES in S72) and there is a received signal from the air volume adjusting device 8 (“Signal received” in S73), the control unit 50b outputs the output voltage of the discharge circuit 54. Vout is set to the set value indicated by the received signal (S74). To connect to the air volume adjusting device 8, press the touch panel button (for example, the connection button) displayed on the display of the air volume adjusting device 8 with the wireless communication function enabled by the switch 46 of the battery pack 10. It is done by operating. Further, the battery pack 10 may be automatically connected without operating the switch 46 of the battery pack 10 or the button of the air volume adjusting device 8, or a combination thereof may be used. The control unit 50b is an output changeover switch when the connection with the air volume adjusting device 8 is not established (NO in S72) and when there is no received signal from the air volume adjusting device 8 (“No signal reception” in S73). If there is an operation of the operation unit such as (switch 46) or the drive mode changeover switch of the fan body 5 (“operation” in S75), the output voltage Vout of the discharge circuit 54 is set to the set value instructed by the operation. (S76). The fan body 5 (fan) can be driven by the output voltage Vout set in S74 while being driven (during operation) by the output voltage Vout set in S74. In other words, while the fan body 5 is being driven in the first state, the output voltage Vout (fan air volume) can be changed to the second state to continue driving (operation). The control unit 50b performs a shutdown process when there is no operation of the output changeover switch (“no operation” in S75) and when there is an end operation (“with operation” in S77) (S78). The shutdown process includes a process of shutting off the power supply to the control unit 50b, or a process of putting the control unit 50b into a sleep state. The shutdown process is performed by the control unit 50b transmitting a power supply control signal (shutdown signal or sleep signal) to the power supply circuit 42. The end operation is the operation of the connection button on the display of the air volume adjusting device 8. Further, the operation may be an operation of disabling the wireless communication function by the switch 46 of the battery pack 10. If there is no termination operation (“No operation” in S77), the control unit 50b returns to step S72 if the connection with the air volume adjusting device 8 is disconnected (YES in S79), and if it is not disconnected (NO in S79). ) Return to step S73. There is no termination operation (“No operation” in S77), no signal from an external device is received, the battery pack 10 itself is not operated (for example, the switch 46 is operated), or the battery is not charged or discharged. If it continues for a predetermined time, the control unit 50b may be configured to shift to the sleep mode or the shutdown mode regardless of the processing of S79. As a result, the power consumption of the battery pack 10 when the battery pack 10 is not used can be suppressed.

FIG. 28 is a time chart showing an example of the operation of the configuration example 1 shown in FIG. 24. At time t1, the control unit 50b receives the start signal from the air volume adjusting device 8 and changes the EN signal transmitted to the internal analog circuit 54b of the DC converter IC 54a from low level to high level. As a result, the internal analog circuit 54b starts operating, and the output voltage Vout of the discharge circuit 54 rises. The control unit 50b sets the voltage control signals V1 to V3 at low levels, and the output voltage Vout of the discharge circuit 54 is 5V. At time t2, the control unit 50b receives an output change signal instructing the output voltage Vout to be changed to 8V from the air volume adjusting device 8, and switches the voltage control signals V1 and V3 to a high level. The internal analog circuit 54b PWM-controls the switching elements Q1 and Q2 (changes the duty ratio of the PWM signal). As a result, the output voltage Vout of the discharge circuit 54 rises to about 8V. At time t3, the control unit 50b receives a stop signal from the air volume adjusting device 8, changes the EN signal from high level to low level, and sets the voltage control signals V1 and V3 to low level. When the EN signal becomes low level, the internal analog circuit 54b stops operating, and the output voltage Vout of the discharge circuit 54 drops to 0V.

FIG. 29 is a simple block diagram of the collective management device 6 and the air volume adjusting device 8. The collective management device 6 and the air volume adjusting device 8 each include a control unit 70, a memory 71, a touch panel (operation unit) 72, a display unit 73, a wireless communication transmission / reception unit 74, and an antenna 75.

30 to 35 are explanatory views of the screen display of the management application of the batch management device 6, FIG. 30 is a home screen, FIG. 31 is a batch check screen, FIG. 32 is an air volume check screen, and FIG. 33 is an operating time. A check screen, FIG. 34 shows a pairing screen, and FIG. 35 shows a connection setting screen with the air volume adjusting device 8. As shown in FIG. 30, on the home screen, a connection (pairing) button, a batch check button, an air volume check button, an operating time check button, and a connection setting button with an air volume adjusting device are displayed. When the connection (pairing) button is tapped, the screen transitions to the pairing screen shown in FIG. 34. When the batch check button is tapped, the operating time check and air volume check flowcharts (FIGS. 40 and 42) are performed, and the process transitions to the batch check screen of FIG. 31. When the air volume check button is tapped, the flow chart of the air volume check (FIG. 42) is performed, and the screen transitions to the air volume check screen of FIG. 32. When the operating time check button is tapped, the operating time check flowchart (FIG. 40) is performed, and the screen transitions to the operating time check screen of FIG. 33. When the connection setting button with the air volume adjusting device is tapped, the screen transitions to the connection setting screen with the air volume adjusting device 8 shown in FIG. 35.

As shown in FIG. 31, the air volume check result and the operating time check result are displayed on the batch check screen. When the air volume check result is tapped, the screen transitions to the air volume check screen shown in FIG. When the operating time check result is tapped, the screen transitions to the operating time check screen shown in FIG. 33. As shown in FIG. 32, the current air temperature (temperature) and the air volume check result for each battery pack are displayed on the air volume check screen. As shown in FIG. 33, the calculated value of the remaining driveable time by each battery pack 10A to 10D is displayed on the operating time check screen. As shown in FIG. 34, the pairing screen displays a list of connected (paired) battery packs and a pairing addition button. When the pairing addition button is tapped, the operation according to the pairing flowchart (FIG. 39) is performed. As shown in FIG. 35, on the connection setting screen with the air volume adjusting device 8, a list of registered air volume adjusting devices 8 for which a request has been approved once in the past and a battery pack 10 capable of adjusting the air volume by the registered air volume adjusting device 8 are displayed. , And an ID input field for inputting the ID of the air volume adjusting device 8, and a request button are displayed. When the registered list is tapped, the ID of the corresponding air volume adjusting device 8 is automatically entered in the ID input field. When the request button is tapped, the operation according to the connection request is executed for the air volume adjusting device 8 input in the ID input field (the operation according to the flowchart of FIG. 46 is performed).

FIG. 36 is a diagram showing a screen before connection of the air volume adjusting application of the air volume adjusting device 8. A connection button is displayed on this screen. When the connection button is tapped, the operation according to the connection flowchart (FIG. 52) is performed. FIG. 37 is a diagram showing a screen after the connection of the air volume adjusting application. On this screen, the name of the connected battery pack 10, the power ON / OFF switching button, the connection status, the remaining amount display of the connected battery pack 10, the air volume, the air volume change button, and the disconnect button are displayed. When the air volume change button is tapped, the operation according to the air volume change flowchart (FIG. 50) is performed. When the disconnect button is tapped, the operation according to the disconnect flowchart (FIG. 53) is performed. FIG. 38 is a diagram showing a screen of the air volume adjusting device 8 when a connection request from the collective management device 6 is received. On this screen, the ID of the other party who sent the connection request (the ID of the request destination), the Yes (permit) button, and the No (not allow) button are displayed. When the Yes (permit) button is tapped, the process moves from S46 to S47 in the flowchart of FIG.

FIG. 39 is a flowchart showing an outline of a procedure for connecting (pairing) the battery pack 10 and the collective management device 6. The construction manager 3 operates a connection request for each of the batch management device 6 and the battery pack 10 of the blower device to be managed (S1). The operation for the batch management device 6 performed here is, for example, pressing the pairing addition button shown in FIG. 34. The operation for the battery pack 10 is, for example, pressing and holding the switch 46.

The batch management device 6 that has received the operation of the connection request searches for a connection destination within the range of short-range wireless communication (S2). Similarly, the battery pack 10 that has received the operation of the connection request searches for a connection destination within the range of short-range wireless communication (S3). At this time, the batch management device 6 may notify the construction manager 3 that the search for the connection destination has started by displaying a screen or the like. The battery pack 10 may notify the construction manager 3 that the search for the connection destination has started by blinking the LED 53 or the like.

When the batch management device 6 and the battery pack 10 find each other as a connection destination (S4), the connection sequence is started (S5), and the connection (pairing) is completed (S6). At this time, the batch management device 6 may notify the construction manager 3 that the connection process has been completed by displaying a screen or the like. The battery pack 10 may notify the construction manager 3 that the connection process is completed by lighting the LED 53 or the like. In the above description, both the batch management device 6 and the battery pack 10 are operated by the construction manager 3, but the battery pack 10 may be operated by the operator 4. The connection (pairing) between the air volume adjusting device 8 and the battery pack 10 can be performed in the same manner as the connection (pairing) between the batch management device 6 and the battery pack 10.

FIG. 40 is a flowchart showing a first example of a method of managing the remaining driveable time of the blower device by the collective management device 6. This flowchart is started by tapping the batch check button or the operating time check button of FIG. 30 of the batch management device 6. The batch management device 6 acquires the remaining capacity of the battery pack 10 and the operating status (air volume) data of the fan main body 5 from the control unit 50b of the battery pack 10 (S11). The collective management device 6 is based on the remaining capacity of the battery pack 10 and the current air volume of the fan body 5, and the remaining driveable time of the fan body 5 at the current air volume (hereinafter, also referred to as “first remaining driveable time”). ) Is calculated (S12). When the first remaining driveable time is equal to or less than a predetermined time (YES in S13), the batch management device 6 warns the construction manager 3 by displaying a screen or the like (S14). The warning may be sent to the battery pack 10 or the air volume adjusting device 8.

When the first remaining driveable time is not less than or equal to the predetermined time (NO in S13), the batch management device 6 is also referred to as the remaining driveable time of the fan body 5 at the maximum air volume (hereinafter, "second remaining driveable time"). Notation) is calculated (S15). When the second remaining driveable time is equal to or less than a predetermined time (YES in S16), the batch management device 6 notifies the construction manager 3 by displaying a screen or the like (S17). The notification may be transmitted to the battery pack 10 or the air volume adjusting device 8. When the second remaining driveable time is not less than or equal to the predetermined time (NO in S16), the batch management device 6 does not give a warning or notification (S18). In the above description, each step of FIG. 40 is executed by the collective management device 6, but the control unit 50b of the battery pack 10 or the air volume adjusting device 8 may execute each step. The "warning" is an aspect of the "notification", but in the present embodiment, the notification having a higher importance or urgency is regarded as a warning, and the other notifications are distinguished as a notification. The driveable time does not need to be calculated by an external device (collective management device 6 or air volume adjusting device 8), but may be calculated by the control unit 50b of the battery pack 10.

FIG. 41 is a conceptual diagram showing a first example of a time management system that collectively manages the remaining driveable time of a plurality of blowers by the batch management device 6. This system is composed of one batch management device 6 and a battery pack 10 of four blowers. In FIG. 41, the reference numerals (battery pack names) are 10A to 10D in order to distinguish the four battery packs 10 from each other (the same applies to FIGS. 44, 47, and 48). On the batch management device 6, the calculated value of the first remaining driveable time by each of the battery packs 10A to 10D is displayed. Here, since the battery packs 10A to 10C are all within the range of the short-range wireless communication of the collective management device 6, the first remaining driveable time based on the latest data (battery remaining capacity and air volume) is available. Is displayed. On the other hand, since the battery pack 10D is out of the range of the short-range wireless communication of the batch management device 6, the data acquired when the batch management device 6 finally performs the short-range wireless communication with the battery pack 10D ( The estimated value of the first remaining driveable time based on the battery remaining capacity and the air volume) is displayed. This estimate is calculated, for example, assuming that the last acquired battery capacity and air volume continue to date. In the example of FIG. 41, the first remaining driveable time of the battery pack 10C is 1 hour or less, which is an example of a predetermined time, and the screen of the batch management device 6 is warned in bold or different character color. It is displayed. Further, the collective management device 6 issues a warning to the battery pack 10C or the air volume adjusting device 8. The second remaining driveable time may be displayed on the batch management device 6, or the first and second remaining driveable times may be displayed side by side or switched to be displayed.

FIG. 42 is a flowchart showing a method of managing the air volume of the blower by the collective management device 6. This flowchart starts when the air volume check button of FIG. 30 of the collective management device 6 is tapped. FIG. 43 is a table summarizing the relationship between the air temperature, the required air volume, and the warning target. The collective management device 6 acquires the air temperature at the place where the battery pack 10 is located (S20). The format for acquiring the air temperature is not limited, but for example, the air temperature at the current location (the position of the battery pack 10 or the air volume adjusting device 8) may be acquired from the air temperature of each place published on the Internet. Alternatively, the temperature inside the battery pack 10 may be acquired as it is, or the body temperature of the worker may be acquired. When the air temperature is A or higher (S21) and the air volume is less than W (YES in S22), the collective management device 6 warns the construction manager 3 by displaying a screen or the like (S30). When the air temperature is in the range of A to B (S23) and the air volume is less than X (YES in S24), the collective management device 6 gives a warning (S30). When the air temperature is in the range of B to C (S25) and the air volume is less than Y (YES in S26), the collective management device 6 gives a warning (S30). When the air temperature is in the range of C to D (S27) and the air volume is less than Z (YES in S28), the collective management device 6 gives a warning (S30). The collective management device 6 does not give a warning when the temperature is less than D (S29) (S31). The collective management device 6 does not give a warning when the air volume is equal to or greater than the amount required for the air temperature (NO in S22, S24, S26, S28) (S31). The warning may be sent to the battery pack 10 or the air volume adjusting device 8. In this case, the warning may include the content of notifying the required air volume with respect to the current air temperature, and the battery pack 10 or the air volume adjusting device 8 that has received the warning increases the air volume of the fan body 5 to the required air volume or more. You may change it. In the above description, each step of FIG. 42 is executed by the collective management device 6, but the control unit 50b of the battery pack 10 or the air volume adjusting device 8 may execute each step.

FIG. 44 is a conceptual diagram showing a first example of an air volume management system that collectively manages the air volumes of a plurality of blowers by the batch management device 6. Similar to that of FIG. 41, this system is composed of one batch management device 6 and battery packs 10A to 10D of four blowers. The collective management device 6 displays the current air temperature (temperature) and the air volume check result for each of the battery packs 10A to 10D. Since the battery pack 10D is out of the range of short-range wireless communication of the collective management device 6, the air volume check result is displayed as unconfirmed. In the example of FIG. 44, since the air volume of the battery pack 10C is insufficient with respect to the air temperature, a warning is displayed on the screen of the collective management device 6 in bold, underlined, or in a character color different from the others. Further, the collective management device 6 issues a warning to the battery pack 10C or the air volume adjusting device 8. The function of managing the remaining driveable time shown in FIG. 41 and the function of checking the air volume shown in FIG. 44 can be included in the functions of the same management application.

FIG. 45 is a flowchart showing a second example of a method of managing the remaining driveable time of the blower device by the collective management device 6. Similar to the case of FIG. 40, the batch management device 6 acquires the remaining capacity of the battery pack 10 and the operating status data (air volume) of the fan main body 5 from the control unit 50b of the battery pack 10 (S11), and first. The remaining driveable time is calculated (S12). Based on the first remaining driveable time, the batch management device 6 determines whether the fan main body 5 can operate at the current air volume until a fixed time (work end time) (S33). If the fan body 5 can operate at the current air volume until the fixed time (YES in S33), the batch management device 6 does not perform notification or adjust the air volume (S34). When the fan main body 5 cannot operate until the fixed time with the current air volume (NO in S33), the batch management device 6 calculates the air volume that can be operated until the fixed time based on the remaining capacity of the battery pack 10 (S35). If the calculated air volume is equal to or greater than the required air volume shown in the table of FIG. 43 at the current air temperature (YES in S36), the collective management device 6 adjusts to the calculated air volume (S37). Specifically, the batch management device 6 transmits a signal instructing the air volume adjustment to the control unit 50b of the battery pack 10, and the control unit 50b that receives the signal adjusts the air volume. If the calculated air volume is less than the required air volume shown in the table of FIG. 43 at the current air temperature (NO in S36), the collective management device 6 notifies the construction manager 3 by displaying a screen or the like (S38). The notification may be transmitted to the battery pack 10 or the air volume adjusting device 8. The management method (drive mode) of FIGS. 40 and 45 may be arbitrarily switched by the batch management device 6. Alternatively, the management method (drive mode) of FIGS. 40 and 45 may be arbitrarily set by the air volume adjusting device 8.

FIG. 46 is a flowchart showing an outline of a procedure for connecting the collective management device 6 and the air volume adjusting device 8 using the network service. The construction manager 3 operates a connection request to the collective management device 6 (S41). The operation performed here is, for example, tapping the request button of FIG. 35 with the ID of the air volume adjusting device 8 of the request destination entered in the ID input field of FIG. 35 of the collective management device 6. The collective management device 6 that has received the operation of the connection request sends a connection request with the air volume adjusting device 8 to a network service such as a cloud (S42). When the network service receives the connection request (S43), it notifies the air volume adjusting device 8 that the connection request has come from the collective management device 6 (S44). When the air volume adjusting device 8 receives the notification from the network service (S45), the air volume adjusting device 8 notifies the worker 4 to that effect by, for example, a screen display or an alert as shown in FIG. 38. The worker 4 performs an approval operation such as tapping a button (yes (permit) button in FIG. 38) displayed on the screen of the air volume adjusting device 8 by the communication application (S46). The air volume adjusting device 8 that has received the approval operation performs a process of accepting the connection request (S47). As a result, the collective management device 6 and the air volume adjusting device 8 are connected by using the network service, and communication becomes possible (S48). At this time, the collective management device 6 and the air volume adjusting device 8 may notify the connection completion by screen display or the like.

FIG. 47 is a conceptual diagram showing a second example of a system in which the remaining driveable time of a plurality of blowers is collectively managed by the collective management device 6. Hereinafter, the differences from the first example shown in FIG. 41 will be mainly described. This system includes air volume adjusting devices 8A to 8D corresponding to battery packs 10A to 10D, and a network service 60 such as a cloud. The first and second remaining driveable times by the battery pack 10D, which is not within the range of short-range wireless communication of the collective management device 6, are the operating status data (batteries) received from the air volume adjusting device 8D via the network service 60. The batch management device 6 calculates and displays the remaining battery capacity and air volume of the pack 10D). According to this system, the first and second remaining driveable times by the battery pack 10D, which is not within the range of the short-range wireless communication of the collective management device 6, are also highly accurate based on the latest data. By using the network service, the battery pack 10 and the fan main body 5 can be managed even if the collective management device 6 is located at a remote location.

FIG. 48 is a conceptual diagram showing a second example of a system for collectively managing the air volumes of a plurality of blowers by the collective management device 6. Hereinafter, the differences from the first example shown in FIG. 44 will be mainly described. This system includes air volume adjusting devices 8A to 8D corresponding to battery packs 10A to 10D, and a network service 60 such as a cloud. The air volume check result for the battery pack 10D that is not within the range of the short-range wireless communication of the batch management device 6 is the operating status data (temperature at the location of the battery pack 10D and the temperature at the location of the battery pack 10D) received from the air volume adjusting device 8D via the network service 60. The batch management device 6 calculates and displays the air volume by the battery pack 10). According to this system, it is possible to check the air volume by the battery pack 10D which is not within the range of the short-range wireless communication of the collective management device 6. The function of managing the remaining driveable time shown in FIG. 47 and the function of checking the air volume shown in FIG. 48 can be included in the functions of the same management application.

FIG. 49 is a flowchart showing the flow of communication between the battery pack 10 of the blower device and the collective management device 6. The construction manager 3 operates the inspection request (S51). The operation performed here is, for example, pressing the inspection start button displayed by the management application. There may be two types of inspection start buttons, for example, a button for checking the remaining driveable time and a button for checking the air volume. The batch management device 6 that has received the inspection request operation requests the necessary data from the battery pack 10 (S52). The required data are, for example, the remaining capacity and the current air volume of the battery pack 10 when checking the remaining driveable time, and the current air volume and air temperature when checking the air volume. Upon receiving the request, the battery pack 10 transmits necessary data to the batch management device 6 (S53). The batch management device 6 performs an operation based on the received data (S54), and if a warning is required (YES in S55), issues a warning (S56). The warning includes an alert and screen display for the construction manager 3 and a signal for instructing the battery pack 10 to give a warning. The control unit 50b of the battery pack 10 performs warning actions such as an alert and a lighting display of the LED 53 according to the received signal from the collective management device 6 (S57). The warning action may be to switch the fan body 5 on and off, or to change the air volume in a predetermined pattern. A notification means such as an LED for warning notification may be provided on the fan body 5 side. If notification is required (YES in S58), the batch management device 6 transmits the notification (S59). The notification is, for example, a screen display for the construction manager 3. The battery pack 10 may also be notified. If the collective management device 6 does not require warning and notification (NO in S55, NO in S58), it does not perform warning and notification (S60).

FIG. 50 is a flowchart showing a procedure for changing the output (air volume) of the blower device using the air volume adjusting device 8. The worker 4 performs an air volume change request operation (S65). The operation performed here is, for example, tapping the air volume change button of FIG. 37 of the air volume adjusting device 8. The air volume adjusting device 8 that has received the air volume change request operation transmits an air volume change request to the battery pack 10 (S66). Upon receiving the air volume change request, the battery pack 10 adjusts the power supplied to the fan body 5 to change the air volume of the fan body 5 (S67). That is, the fan body 5 can change the air volume while driving. The control unit 50b of the battery pack 10 has a manual change mode in which the air volume is manually changed regardless of the air temperature by operating the switch 46 owned by the battery pack 10 or the air volume adjusting device 8, and is shown in the table of FIG. 43 according to the air temperature. It may have an automatic change mode in which the air volume is automatically changed so as to satisfy the required air volume. The manual change mode and the automatic change mode may be arbitrarily switched by operating the air volume adjusting device 8 or the battery pack 10 (switch 46). Here, the change of the air volume in the manual change mode is as shown in FIGS. 24 and 28. That is, the voltage control signals V1 to V3 are controlled according to the operation (setting) of the air volume change button of the air volume adjusting device 8, and the output voltage Vout is changed by switching the switching elements Q3 to Q5 on and off. Then, the switching elements Q1 and Q2 are controlled so that the voltage Vm becomes a constant voltage corresponding to the output voltage Vout which is the target value (set value). Alternatively, as shown in FIG. 25, the switching element Q7 may be PWM controlled. In this case, the duty ratio of the PWM signal is changed according to the operation (setting) of the air volume change button of the air volume adjusting device 8. Then, the switching elements Q1 and Q2 are PWM-controlled so that the voltage Vm becomes a constant voltage corresponding to the output voltage Vout which is the target value (set value). Alternatively, as shown in FIG. 26, the switching elements Q1 and Q2 may be switched controlled (for example, PWM control) according to the operation (setting) of the air volume changing button of the air volume adjusting device 8.

FIG. 51 is a flowchart showing an outline of a procedure for canceling the connection (pairing) between the battery pack 10 and the collective management device 6. The construction manager 3 performs a cutting request operation on the collective management device 6 (S81). The operation of the disconnection request is, for example, an operation of returning to the home screen (an operation of terminating or inactivating the management application). Alternatively, the operation may be an operation of tapping the disconnect button on the screen of the batch management device 6. The batch management device 6 that has received the operation of the disconnection request transmits the disconnection request to the battery pack 10 (S82). The battery pack 10 that has received the disconnection request permits disconnection (S83), and both the batch management device 6 and the battery pack 10 perform a process of releasing the connection (pairing) (S84).

FIG. 52 is a flowchart showing an outline of a procedure for connecting (pairing) the battery pack 10 and the air volume adjusting device 8. The operator 4 performs a connection request operation on each of the air volume adjusting device 8 and the battery pack 10 (S91). The operation for the air volume adjusting device 8 performed here is, for example, tapping the connection button in FIG. 36. The operation for the battery pack 10 is, for example, pressing and holding the switch 46. The air volume adjusting device 8 that has received the operation of the connection request searches for a connection destination within the range of short-range wireless communication (S92). Similarly, the battery pack 10 that has received the operation of the connection request searches for a connection destination within the range of short-range wireless communication (S93). At this time, the air volume adjusting device 8 may notify the operator 4 that the search for the connection destination has started by displaying a screen or the like. The battery pack 10 may notify the operator 4 that the search for the connection destination has started by blinking the LED 53 or the like. When the air volume adjusting device 8 and the battery pack 10 find each other as a connection destination (S94), the connection sequence is started (S95), and the connection (pairing) is completed (S96). At this time, the air volume adjusting device 8 may notify the operator 4 that the connection process is completed by displaying a screen or the like. The battery pack 10 may notify the operator 4 that the connection process is completed by lighting the LED 53 or the like.

FIG. 53 is a flowchart showing an outline of a procedure for releasing the connection (pairing) between the battery pack 10 and the air volume adjusting device 8. The worker 4 performs a cutting request operation on the air volume adjusting device 8 (S86). The operation of the disconnection request is, for example, an operation of tapping the disconnection button in FIG. 37. The air volume adjusting device 8 that has received the operation of the disconnection request transmits the disconnection request to the battery pack 10 (S87). The battery pack 10 that has received the disconnection request permits disconnection (S88), and both the air volume adjusting device 8 and the battery pack 10 perform a process of releasing the connection (pairing) (S89).

According to this embodiment, the following effects can be achieved.

(1) Convenience is high because the operation of the output unit (fan air volume) can be changed by wireless communication with an external device. Further, since the output unit is configured to change to the second operation by wireless communication with an external device during the first operation and continue the operation, it is highly convenient.

(2) Since a single control unit is configured to control not only wireless communication but also battery pack control (charge control and discharge control) and battery pack (battery cell) protection, the number of parts of electrical equipment is reduced and the circuit configuration is configured. Can be simplified.

(3) Since a single control unit is configured to control not only wireless communication but also battery pack control (charge control and discharge control) and battery pack (battery cell) protection, such information (discharge current and charge current) , Battery cell voltage, temperature, etc.), advanced control, for example, estimation of remaining drive time is possible. In the case of a configuration in which each control is distributed to a plurality of control units, the control may become unstable due to poor contact of the connection line connecting each control unit or failure of one of the control units. On the other hand, according to a single control unit, there is no risk of poor contact between the control units, and if the control unit itself fails, the control itself becomes impossible, so that it is possible to prevent undesired control from being executed. it can. Further, since a single control unit is provided, the configuration can be simplified as compared with a configuration in which a plurality of control units are provided.

(4) The drive circuit can be simplified, and the operation of the output unit (output voltage, fan air volume) can be easily changed.

(5) The operation of the output unit (output voltage, fan air volume) can be easily changed by simply PWM-controlling the switching element of the drive circuit.

(6) Since the output voltage of the drive circuit can be changed in the battery pack, the configuration on the device body side can be simplified and miniaturized. Further, in the case of clothes having a temperature control device such as clothes having a blower device or a heat jacket having a heater, the device body (blower device and heater part) can be miniaturized, so that the clothes can be folded and stored compactly. be able to.

(7) Since the output voltage of the drive circuit can be changed in the battery pack, the number of connection lines or terminals connecting the battery pack and the main body of the device can be suppressed, and the connection portion can be simplified.

(8) Because the battery pack is provided with a single control unit that performs wireless communication, control of the battery pack, and protection of the battery pack, and a drive circuit that steps down the voltage of the battery pack to generate the drive voltage of the device body. The configuration on the device body side can be simplified and miniaturized. Further, in the case of clothes having a temperature control device such as clothes having a blower or a heat jacket having a heater as an electric device, the blower (equipment body) can be miniaturized, so that the clothes can be compactly folded and stored. ..

(9) While the output unit is operating in the first state, the operating condition of the output unit can be changed to the second state and the operation of the output unit can be continued, so that convenience can be improved.

(10) Since the battery pack is provided with a wireless communication function, it is possible to change the operation of the output unit of the device body that does not have the wireless communication function by installing the battery pack. The output unit corresponds to a fan of a cooling device (a motor for driving a fan) or a heater of a heat jacket.

(11) Since the battery pack 10 can notify (transmit) the remaining driveable time of the fan body 5 or the data necessary for specifying the remaining driveable time to the batch management device 6, the batch management device 6 The remaining driveable time of the battery pack 10 can be managed in the above, which is highly convenient.

(12) The batch management device 6 can collectively manage the remaining driveable time of each of the plurality of battery packs 10, and is highly convenient.

(13) As the remaining driveable time, the first and second remaining driveable times, that is, the remaining driveable time of the fan body 5 at the current air volume and the remaining driveable time of the fan body 5 at the maximum air volume are calculated. It is convenient for management because it can be notified.

(14) Since the battery pack 10 can notify when the remaining driveable time of the fan body 5 is less than a predetermined time (when the remaining driveable time becomes abnormal), it is possible to prompt the early replacement of the battery pack 10. Highly convenient.

(15) Since the battery pack 10 can notify (transmit) the air volume of the fan body 5 to the batch management device 6, whether or not the air volume of the battery pack 10 in the batch management device 6 is equal to or greater than the air volume required for the air temperature. Can be managed and is highly convenient.

(16) The control unit 50b of the battery pack 10 can execute an automatic change mode in which the air volume is automatically changed so as to satisfy the required air volume shown in the table of FIG. 43 according to the air temperature, which is highly convenient.

(17) As shown in FIG. 45, the control unit 50b of the battery pack 10 can adjust the air volume of the fan body 5 according to a fixed time (drive end time of the fan body 5), which is highly convenient.

(18) Since the battery pack 10 notifies when the air volume is abnormal, that is, when the air volume is insufficient with respect to the air temperature, it is possible to prevent poor physical condition due to the insufficient air volume, which is highly convenient.

(19) The collective management device 6 can collectively manage the air volumes of the plurality of fan bodies 5, and is highly convenient.

(20) Since the wireless antenna module 50 is provided between the battery cells 11a and 11b in the front-rear direction, compared with the case where the wireless antenna module 50 is provided in the vicinity directly above the central axes of the battery cells 11a and 11b in the front-rear direction. The wireless antenna 50a can be separated from the metal outer peripheral surfaces of the battery cells 11a and 11b, and the influence of the wireless antenna 50a on the outer peripheral surfaces of the battery cells 11a and 11b can be suppressed.

(21) Since the wireless antenna module 50 is provided at the right end of the substrate 20, that is, near the ends of the battery cells 11a to 11c in the left-right direction, the wireless antenna module 50 is provided in the battery cells 11a to 11a in the left-right direction of the substrate 20. The area of the outer peripheral surface of the battery cells 11a to 11c facing the wireless antenna 50a can be reduced as compared with the case where the battery cells 11c are provided at a position other than the vicinity of the end portion of the 11c, and the wireless antenna 50a is the battery cell 11a. The influence of the metal on the outer peripheral surface of ~ 11c can be suppressed.

(22) Since the wireless antenna module 50 is provided on the upper surface of the substrate 20, that is, on the surface of the substrate 20 opposite to the battery cells 11a to 11c, as compared with the case where the wireless antenna module 50 is provided on the lower surface of the substrate 20. The wireless antenna 50a can be separated from the outer peripheral surfaces of the battery cells 11a to 11c, and the influence of the metal on the outer peripheral surfaces of the battery cells 11a to 11c on the wireless antenna 50a can be suppressed.

(23) The substrate connection portion 23a of the tab 23 that electrically connects the negative electrode of the battery cell 11a and the positive electrode of the battery cell 11b to each other and electrically connects to the substrate 20 is between the battery cells 11a and 11b in the front-rear direction. The wireless antenna module 50 is electrically connected to the left end portion of the substrate 20 and is provided at the right end portion of the substrate 20 between the battery cells 11a and 11b in the front-rear direction. Therefore, as compared with the case where the board connection portion 23a of the tab 23 and the wireless antenna module 50 are provided at the left and right end portions of the substrate 20, the wireless antenna 50a is connected to the board connection portion 23a of the tab 23 which is metal. It can be separated, and the influence of the wireless antenna 50a from the board connection portion 23a of the tab 23 made of metal can be suppressed.

(24) Since the pattern non-forming portion 20a is a predetermined range before and after the substrate 20 adjacent to the wireless antenna 50a, the wireless antenna 50a is mounted on the substrate 20 as compared with the case where the conductor pattern exists in the pattern non-forming portion 20a. The radio antenna 50a can be separated from the conductor pattern of the substrate 20 and the influence of the conductor pattern (metal) of the substrate 20 can be suppressed.

(25) As described above, the configuration capable of suppressing the influence of the metal on the wireless antenna 50a does not require the upper case 12 and the lower case 13 to be enlarged, so that the influence of the metal part on the wireless communication function is suppressed and the size is large. It is possible to achieve a good balance of suppression of conversion.

(26) Since the wireless antenna module 50 is arranged so as to avoid the vicinity of the end portion of the upper case 12 in the front-rear direction, as compared with the case where the radio antenna module 50 is arranged near the end portion of the upper case 12 in the front-rear direction. , The increase in the height of the upper case 12 can be suppressed. That is, if the radio antenna module 50 is located directly below the lowest height end of the upper case 12 in the front-rear direction, it is necessary to secure a height that does not interfere with the radio antenna module 50 even at the lowest height end. As a whole, the height of the upper case 12 increases, but such a problem can be suitably avoided by arranging the wireless antenna module 50 so as to avoid the vicinity of the end portion of the upper case 12 in the front-rear direction.

(27) Since the charging jack 52 and the discharging jack 55 are provided on the lower surface of the substrate 20 (the surface on the battery cells 11a to 11c side) and extend or are located within the existence range of the battery cells 11a to 11c in the vertical direction. , It is possible to suppress an increase in the height of the case of the battery pack 10.

(28) Since the control unit 50b of the wireless antenna module 50 also controls the charging / discharging of the battery pack 10, the number of parts can be reduced and the cost is low as compared with the case where a separate control unit for controlling charging / discharging is provided.

(29) Since the upper case 12 has a curved shape in the longitudinal direction, it is easy to put it in a pocket and is highly convenient.

Although the present invention has been described above by taking the embodiment as an example, it will be understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope of the claims. By the way. Hereinafter, a modification will be described.

FIG. 22 is a perspective view of the battery pack according to another embodiment of the present invention in a state in which the directions of the battery cells 11a to 11c are rotated counterclockwise by 90 degrees from the state of FIG. Hereinafter, the differences from the embodiments shown in FIG. 14 and the like will be mainly described. In FIG. 22, the front-rear direction is an example of the first direction, the left-right direction is an example of the second direction, and the vertical direction is an example of the third direction. The battery cells 11a to 11c extend in the longitudinal direction in the front-rear direction and are arranged in the left-right direction. The wireless antenna module 50 is provided at the right end of the substrate 20 as in the case of FIG. The length of the existing range of the battery cells 11a to 11c is substantially equal to the length of the substrate 20 in the left-right direction. The right end portion of the substrate 20 is a position near the end portion of the existence range of the battery cells 11a to 11c in the left-right direction. According to the present embodiment, as compared with the case where the wireless antenna module 50 is provided outside the vicinity of the end of the existing range of the battery cells 11a to 11c in the left-right direction, the wireless antenna on the outer peripheral surface of the battery cells 11a to 11c The area of the portion facing the 50a can be reduced, and the influence of the wireless antenna 50a from the outer peripheral surfaces of the battery cells 11a to 11c can be suppressed.

FIG. 54 is a circuit diagram showing a specific configuration example 4 of the discharge circuit unit 54. The configuration uses an inverter circuit as the discharge circuit 54, which is effective when the motor of the fan body 5 is a brushless motor. The output voltage Vout is set by performing PWM control to control the duty ratio of the signals H1 to H6 applied to the gates of the switching elements Q1 to Q6 of the inverter circuit according to the operation (setting) of the air volume change button of the air volume adjusting device 8. It controls and changes the rotation speed of the fan motor 5a.

In the first example, an inverter circuit (discharge circuit) 54, a control unit 50b, and a power supply circuit 42 are provided on the battery pack 10 side, and the rotation speed of the fan (fan motor) is changed by the control unit 50b. A brushless motor 5a serving as a fan motor (motor integrated with the fan) and a position detecting element (Hall element) 5b for detecting the position information of the brushless motor 5a are provided on the fan body 5 side. The discharge jack 55 is provided with lead wires for each phase of the brushless motor 5a and signal wires for the position detection element 5b. The control unit 50b calculates the rotation speed of the brushless motor 5a based on the information from the position detection element 5b. Then, PWM control is performed by controlling the duty ratios of the switching elements Q1 to Q6 of the inverter circuit 54 so as to reach the target rotation speed set by the air volume adjusting device 8. When the set air volume is large, the duty ratio is large as compared with the case where the air volume is small.

In the second example, the control unit 50b and the power supply circuit 42 are provided on the battery pack 10 side, and the rotation speed of the fan (fan motor) is changed by the control unit 50b. A brushless motor 5a, a position detection element 5b, and an inverter circuit (discharge circuit) 54 are provided on the fan body 5 side. The discharge jack 55 is provided with control signal lines H1 to H6 of switching elements Q1 to Q6 and signal lines of position detection elements 5b. The control unit 50b calculates the rotation speed of the brushless motor 5a based on the information from the position detection element 5b. Then, PWM control is performed by controlling the duty ratios of the switching elements Q1 to Q6 of the inverter circuit 54 so as to reach the target rotation speed set by the air volume adjusting device 8.

In the third example, the control unit 50b and the power supply circuit 42 are provided on the battery pack 10 side. A brushless motor 5a, a position detection element 5b, an inverter circuit (discharge circuit) 54, and a fan side control unit 5c are provided on the fan body 5 side. The rotation speed of the fan (fan motor) is changed by the fan side control unit 5c. The discharge jack 55 has a power supply line, a power supply line of the fan side control unit 5c (output of the power supply circuit 42), and a signal line between the battery pack side control unit 50b and the fan side control unit 5c (discharge voltage switching signal or rotation speed switching). Signal) is provided. The fan-side control unit 5c calculates the rotation speed of the brushless motor 5a based on the information from the position detection element 5b. The battery pack side control unit 50b outputs a discharge voltage switching signal (rotation speed switching signal) to the fan side control unit 5c via the discharge jack 55, and the fan side control unit 5c rotates the motor according to the signal from the position detection element. The number is calculated, and the duty ratio of the switching elements Q1 to Q6 of the inverter circuit 54 is controlled so as to be the input rotation speed switching signal (air volume) to perform PWM control.

In the fourth example, the control unit 50b is provided on the battery pack 10 side. A brushless motor 5a, a position detection element 5b, an inverter circuit (discharge circuit) 54, a fan side control unit 5c, and a fan side power supply circuit 5d are provided on the fan body 5 side. The drive power supply for the fan-side control unit 5c is supplied from the fan-side power supply circuit 5d. The discharge jack 55 is provided with a power supply line and a signal line (discharge voltage switching signal or rotation speed switching signal) between the battery pack side control unit 50b and the fan side control unit 5c. Other configurations are the same as in the third example. In the third and fourth examples, the fan side control unit 5c receives the control signals (duty signals) of the switching elements Q1 to Q6 from the battery pack side control unit 50b, and the switching elements Q1 to are based on the control signals. Q6 may be PWM controlled. In this case, the control signal may be a plurality of fixed duty signals (for example, duty ratios of 30%, 50%, 80%, and 100%). Further, in the first to fourth examples, and when it is not necessary to control the rotation speed of the brushless motor 5a with high accuracy, it is not necessary to feed back the rotation speed, and the configuration can be simplified. .. In the first to fourth examples, the third or fourth example is effective because the configuration can be simplified in consideration of the wiring of signal lines and the arrangement of terminals.

Although the blower device has been described as an example of the electric device, the operation of the output unit may be changed by wireless communication with an external device, not limited to the blower device and clothes having the blower device. For example, the same clothes can be applied to a heat jacket having a built-in heater as an output unit. In other words, it can be applied to a temperature control device including a blower and a heater capable of adjusting the temperature of clothes (around the worker), and clothes having the temperature control device. It is effective for clothes having a temperature control device because the structure on the clothes side can be simplified and it can be folded and stored compactly. In addition, it is applied to radios and televisions so that the volume (volume control unit) and channel (channel switching unit) as an output unit can be changed by wireless communication, and to the light (light adjustment unit) as an output unit. It may be applied to peripheral devices such as a configuration in which the brightness can be changed by wireless communication. Further, the configuration may be applied to an electric tool such as an impact driver or a circular saw so that the rotation speed of the motor as an output unit can be changed by wireless communication. The above-mentioned effects can also be obtained in these modified examples.

3 Construction manager (site supervisor), 4 Workers, 5 Fans, 6 Collective management equipment (1st communication equipment), 7 Cables, 8 Air volume adjustment equipment (2nd communication equipment), 9 Clothes, 10 Battery packs , 11 Battery cell, 11a-11c Battery cell, 12 Upper case, 13 Lower case, 13a rib, 13b rib, 15 button, 16 Display, 18 cover, 20 board, 20a pattern non-forming part, 21 tab, 21a board connection , 22 tabs, 22a board connection, 23 tabs, 23a board connection, 24 tabs, 24a board connection, 46 switches, 50 wireless antenna module, 50a wireless antenna, 50b control, 52 charging jack, 54 discharge circuit, 54a DC converter IC, 54b internal analog circuit, 55 discharge jack, 58 AC adapter, 59 AC power supply, 60 network service, 70 control unit, 71 memory, 72 touch panel (operation unit), 73 display unit, 74 wireless communication transmitter / receiver, 75 antenna.

Claims (16)

The main body of the device that has an output unit
A battery pack that can be attached to and detached from the device body is provided.
The battery pack has a wireless communication unit capable of wireless communication with an external device and a control unit for controlling wireless communication with the external device.
The control unit is an electric device configured so that the operation of the output unit can be changed by wireless communication with the external device while the output unit is operating. It has a drive circuit that supplies a drive voltage to the output unit.
The electric device according to claim 1, wherein the control unit is configured to change the operation of the output unit by changing the output voltage from the drive circuit. A wireless control unit that integrates the wireless communication unit and the control unit is configured.
The wireless communication unit has a wireless antenna that receives a signal from the external device.
The electric device according to claim 1 or 2, wherein the control unit is configured to control at least one of discharge control, charge control, and protection control of the battery pack. The drive circuit includes a DC converter unit that transforms the voltage of the battery pack, an inductor connected to the power supply line of the DC converter unit, and a capacitor connected between the output side of the inductor and ground. ,
The DC converter unit includes a plurality of first switching elements connected in series between the power supply line and ground.
The electric device according to any one of claims 1 to 3, wherein a desired voltage is charged to the capacitor by a switching operation of the plurality of first switching elements. The electric device according to claim 4, wherein the drive circuit and the control unit are configured as shown in the following (1) or (2).
(1) The drive circuit includes an output voltage adjusting circuit including a plurality of resistors and a plurality of second switching elements connected in series to each of the plurality of resistors.
The control unit is configured to switch the state of the plurality of second switching elements based on a signal from the external device, or
(2) The drive circuit has an output voltage adjusting circuit including a resistor and a third switching element connected in series to the resistor.
The control unit is configured to perform PWM control of the third switching element based on a signal from the external device. The output unit has a brushless motor and
The drive circuit includes an inverter circuit including a plurality of fourth switching elements.
The electric device according to any one of claims 1 to 3, wherein the control unit is configured to perform PWM control of the plurality of fourth switching elements based on a signal from the external device. The electric device according to any one of claims 1 to 6, wherein the external device is configured to notify or manage the remaining driveable time of the output unit driven by the battery pack mounted on the device body. .. The remaining driveable time includes the first and second remaining driveable times.
The first remaining driveable time is calculated based on the remaining capacity of the battery pack and the current operating state of the output unit.
The electric device according to claim 7, wherein the second remaining driveable time is calculated based on the remaining capacity of the battery pack and the maximum operating state of the output unit. The electricity according to any one of claims 1 to 8, wherein the operation of the output unit can be changed according to any of an external temperature, a worker's body temperature or an ambient temperature, and the temperature of the battery pack. machine. The blower according to any one of claims 11 to 9, wherein the operation of the output unit can be adjusted according to the drive end time of the output unit. The external device has a wireless communication function, and has a first communication device capable of wireless communication with the wireless communication unit of the battery pack.
The first communication device is capable of wireless communication with a battery pack different from the battery pack, and is configured to manage an output unit different from the output unit, according to any one of claims 1 to 10. Described electrical equipment. The external device has a wireless communication function, and has a second communication device capable of wireless communication with the wireless communication unit of the battery pack.
The second communication device is configured so that the operation of the output unit can be changed by wireless communication.
The electric device according to claim 11, wherein the first communication device and the second communication device are configured to enable wireless communication with each other. At least one of the first communication unit, the second communication device, and the battery pack has a notification unit that notifies the remaining driveable time of the output unit that can be driven by the battery pack and the operating state of the output unit. , The electrical device according to claim 12. The device body is clothing having a fan or heater as the output unit.
Any of claims 1 to 13, wherein the control unit is configured to be able to change the rotation speed of the fan, the air volume, the voltage supplied to the fan, or the temperature of the heater by wireless communication with the external device. The electrical equipment described in paragraph 1. Clothes that workers can wear
A temperature control device for adjusting the ambient temperature of the worker, and
The temperature control device is provided with a removable battery pack.
The battery pack has a wireless communication unit capable of wireless communication with an external device and a control unit for controlling wireless communication with the external device.
The control unit is a garment configured so that the operation of the temperature control device can be changed by wireless communication with the external device. A temperature control device that regulates the ambient temperature of workers.
The main body of the device that has a fan or heater,
A battery pack that can be attached to and detached from the device body is provided.
The battery pack has a wireless communication unit capable of wireless communication with an external device and a control unit for controlling wireless communication with the external device.
The control unit is a temperature control device configured so that the rotation speed of the fan or the temperature of the heater can be changed by wireless communication with the external device.