Electric device body and electric device

Abstract

Provided are an electric device body capable of wireless communication with an external device via a wireless communication unit of a battery pack and charging the battery pack, and an electric device having the electric device body. In both cases where a battery pack 29 supplies power to a compressor 41 and where the battery pack 29 is charged by a charge control circuit 83, the battery control MCU of an electric device body 1 is configured to be capable of wireless communication with a portable terminal 150 via an MCU 104 with a wireless communication function of the battery pack 29.

Description

Electrical equipment and electrical devices

[0001] The present invention relates to an electric device body and an electric device.

[0002] Patent Document 1 discloses a refrigerator / warmer as an electrical device main body that has a charging circuit capable of charging two battery packs and does not have a wireless communication unit. Patent Document 2 discloses a power tool as an electrical device main body that has a control unit that can wirelessly communicate with external devices via the wireless communication unit of the battery packs.

[0003] International Publication No. 2022 / 172775 Patent Publication No. 2021-120176

[0004] A first object of the present invention is to provide an electrical device main body capable of wireless communication with an external device via a wireless communication unit of a battery pack and capable of charging a battery pack, and an electrical device having the electrical device main body.A second object of the present invention is to provide an electrical device main body capable of wireless communication with an external device via a wireless communication unit of a battery pack and capable of stable wireless communication, and an electrical device having the electrical device main body.

[0005] One aspect of the present invention is an electrical device main body that includes: a battery pack mounting section that can mount a battery pack having battery cells and a wireless communication section; a load section that converts power supplied from the battery pack mounted in the battery pack mounting section into heat, light, or sound; a charging section that charges the battery pack; and a control section that controls the load section and the charging section, wherein the control section is configured to be able to wirelessly communicate with an external device via the wireless communication section of the battery pack in both cases, when the battery pack is supplying power to the load section and when the battery pack is being charged by the charging section.

[0006] Another aspect of the present invention is an electric device main body, the electric device main body having a first battery pack mounting portion to which a first battery pack can be mounted, a second battery pack mounting portion to which a second battery pack can be mounted, a load portion driven by power supplied from the first battery pack mounted in the first battery pack mounting portion and / or the second battery pack mounted in the second battery pack mounting portion, a first switching portion that switches between connecting and disconnecting the first battery pack mounted in the first battery pack mounting portion and the load portion, a second switching portion that switches between connecting and disconnecting the second battery pack mounted in the second battery pack mounting portion and the load portion, and a control portion that controls the load portion, the first switching portion, and the second switching portion, When a battery pack not including a wireless communication unit is attached as the first battery pack to the battery pack attachment unit and a battery pack not including a wireless communication unit is attached as the second battery pack to the second battery pack attachment unit, the control unit is configured to cut off the first switching unit when the voltage of the first battery pack drops to a first cut-off threshold, and when a battery pack including a wireless communication unit is attached as the first battery pack to the first battery pack attachment unit and a battery pack not including a wireless communication unit is attached as the second battery pack to the second battery pack attachment unit, the control unit is configured to cut off the first switching unit when the voltage of the first battery pack drops to a second cut-off threshold that is higher than the first cut-off threshold.

[0007] Another aspect of the present invention is an electric device main body having a battery pack mounting section to which a battery pack having a battery cell and a wireless communication section can be mounted, a load section that converts power supplied from the battery pack mounted in the battery pack mounting section into heat, light, sound, or motive power, a main body wireless communication section configured to be able to wirelessly communicate with a mobile terminal, and a control section that controls the load section and the main body wireless communication section, wherein when the battery pack is mounted in the battery pack mounting section, the control section is configured to be able to perform first wireless communication with the mobile terminal via the wireless communication section of the battery pack and to be able to perform second wireless communication with the mobile terminal via the main body wireless communication section of the electric device main body.

[0008] According to the present invention, it is possible to provide an electric device main body capable of wireless communication with an external device via a wireless communication unit of a battery pack and capable of charging a battery pack, and an electric device having the electric device main body. Alternatively, it is possible to provide an electric device main body capable of wireless communication with an external device via a wireless communication unit of a battery pack and capable of stable wireless communication, and an electric device having the electric device main body.

[0009] 1 is a perspective view of the electric device 1 according to the first embodiment of the present invention, as seen from the upper front side, with the first lid 6 open. FIG. 2 is a perspective view of the electric device 1, as seen from the upper right front, with the partition plate 70 removed from FIG. 1 . FIG. 3 is a perspective view of the electric device 1, as seen from the upper right front, with the second lid 7 open. FIG. 4 is a perspective view of the electric device 1, as seen from the upper right front, with the battery pack 29 removed from FIG. 3 . FIG. 5 is a perspective view of the electric device 1, as seen from the upper right rear side. FIG. 6 is a rear view of the electric device 1. FIG. 7 is a simplified block diagram of the mechanical configuration of the electric device 1. FIG. 8 is a circuit block diagram of the electric device 1, with an AC-DC conversion circuit (AC adapter) 82 connected as an external power source and battery packs 29a, 29b attached. 1A is a schematic diagram showing that when wireless communication is established between one of the battery packs 29a, 29b attached to the electric device 1 and the mobile terminal 150, wireless communication between the other of the battery packs 29a, 29b and the mobile terminal 150 is disabled. FIGS. 1B to 1D are diagrams showing an authentication code input screen on the mobile terminal 150 when wirelessly connecting to the electric device 1. FIG. 1E is a diagram showing a screen on the mobile terminal 150 when setting the operation of the electric device 1. A control flowchart for the electric device 1. A schematic diagram showing an electric device 1 according to a second embodiment of the present invention. A schematic diagram showing an electric device 1 according to a third embodiment of the present invention. A schematic diagram showing an electric device 1 according to a third embodiment of the present invention. A schematic diagram showing an electric device 1 according to a fourth embodiment of the present invention. A schematic diagram showing an electric device 1 according to a fourth embodiment of the present invention. A schematic diagram showing an electric device 1 according to a fifth embodiment of the present invention.

[0010] (First embodiment) This embodiment relates to an electric appliance 1. The electric appliance 1 is configured as a portable refrigerator / heater (a cold storage or heat storage) having a cooling and heating function.

[0011] 1 to 6 show the external appearance of the electrical device 1. Figure 1 and other figures define the mutually orthogonal front-to-rear, up-down, and left-to-right directions of the electrical device 1. The front-to-rear direction is the depth direction (short side direction) of the electrical device 1, the left-to-right direction is the width direction (longitudinal direction) of the electrical device 1, and the up-to-down direction is the height direction of the electrical device 1.

[0012] The electrical device 1 includes a main body 2. The main body 2 has a first main body portion 3 and a second main body portion 4 separate from the first main body portion 3. The first main body portion 3 and the second main body portion 4 are aligned in the left-right direction. The second main body portion 4 is located outside and to the right of the first main body portion 3.

[0013] The first main body 3 has a left outer box 12. The left outer box 12 is, for example, a resin molded body that is a substantially rectangular parallelepiped with an open top, and constitutes the exterior of the first main body 3. The second main body 4 has a right outer box 13. The right outer box 13 is, for example, a resin molded body that is a substantially rectangular parallelepiped with an open top and left side, and constitutes the exterior of the second main body 4. The right outer box 13 is fixed and integrated with the right side surface of the left outer box 12 by screws or the like.

[0014] The main body 2 has a main frame 11. The main frame 11 is, for example, a resin molded body. The main frame 11 is a frame body that spans the upper parts of the first main body portion 3 and the second main body portion 4, and has openings that correspond to the first main body portion 3 and the second main body portion 4, respectively.

[0015] The electrical device 1 includes a cover 5. The cover 5 is provided on top of the main body 2 and can be opened and closed relative to the main body 2. The cover 5 includes a first cover 6 that opens and closes the first main body 3, and a second cover 7 that opens and closes the second main body 4 (opens and closes the battery pack storage section 22).

[0016] As shown in Fig. 5 and other figures, the first cover 6 is rotatably connected to the rear end of the main frame 11 by a first hinge mechanism 25. The first cover 6 has a handle 6a. A user can release the lock of the first cover 6 from the main frame 11 by rotating the handle 6a of the first cover 6, which is in the closed state shown in Fig. 3, forward, and then hold the handle 6a to open the first cover 6 as shown in Fig. 1.

[0017] As shown in Fig. 5 and other figures, the second cover 7 is rotatably connected to the rear end of the main frame 11 by a second hinge mechanism 26. The second cover 7 has a handle 7a. A user can unlock the second cover 7 by rotating the handle 7a of the second cover 7 in the closed state shown in Fig. 1 upward, and then hold the handle 7a to open the second cover 7 as shown in Fig. 3.

[0018] The electric device 1 has a pair of left and right handles 21 and a plurality of (for example, four) legs 35 at the bottom that serve as ground contact portions. A user can move the electric device 1 by holding the left and right handles 21 and lifting it up.

[0019] The electrical appliance 1 has casters 19 and a movable handle (carry handle) 20. The casters 19 are provided at the front and rear of the lower right portion of the main body 2. The rotation axis direction of the casters 19 is parallel to the left-right direction. The movable handle 20 is rotatably provided on the left side of the main body 2. The rotation axis direction of the movable handle 20 is parallel to the left-right direction. A user can move the electrical appliance 1 using the casters 19 by rotating the movable handle 20 upward and holding the movable handle 20 to lift the left portion of the main body 2 off the ground.

[0020] The electrical device 1 has a USB terminal 27A and a cigarette lighter socket 27B at the upper front surface of the second main body 4, and an external power input terminal 28 as a power connection portion at the lower right side surface of the second main body 4. The electrical device 1 can supply DC 5V to a device connected to the USB terminal 27A (hereinafter referred to as a "USB-connected device"). The cigarette lighter socket 27B is an example of an external output portion. The electrical device 1 can supply DC 12V to an external device connected to the cigarette lighter socket 27B (hereinafter also referred to as a "cigarette lighter-connected device"). The external power input terminal 28 is an example of an external power connection portion and can be connected alternatively to an in-vehicle power supply or an AC adapter. The electrical device 1 can input DC power from an external source via the external power input terminal 28. The electrical device 1 operates using the DC power or power from a battery pack 29. The battery pack 29 is detachably attached to a power tool or an electric work machine to supply power. The rated voltage of the battery pack 29 is, for example, 18V.

[0021] Although not shown, the electrical device 1 has a fan inside the right outer casing 13. This fan generates fan airflow that cools a cooling mechanism (particularly a condenser 42 shown in FIG. 7 ), which will be described later. An air intake port 23 for taking in the fan airflow is provided on the front surface of the right outer casing 13. An air exhaust port 24 for exhausting the fan airflow is provided on the rear surface of the right outer casing 13. The fan airflow flows in the front-to-rear direction from the air intake port 23 to the air exhaust port 24. Note that the front-to-rear relationship of intake and exhaust may be reversed.

[0022] The first main body 3 has a storage chamber 8 (storage section). The storage chamber 8 has a right chamber 8R that serves as a first storage chamber (first storage section) and a large room, and a left chamber 8L that serves as a second storage chamber (second storage section) and a small room. The right chamber 8R and the left chamber 8L are adjacent to each other and separated (divided) by a removable partition plate 70.

[0023] The first main body 3 has a right side surface member 16R, a left side surface member 16L, and a rail member 18, which are components of the storage chamber 8. The right side surface member 16R and the left side surface member 16L are metal plates made of aluminum or the like, and each has a U-shape when viewed from above and below. Refrigerant pipes 45R, 45L, which appear in Figure 7, are provided around the right side surface member 16R and the left side surface member 16L.

[0024] The rail members 18 guide the attachment and detachment of the partition plate 70. The rail members 18 are provided in two gaps between the right side surface member 16R and the left side surface member 16L. The rail members 18 also serve to connect the right side surface member 16R and the left side surface member 16L. The rail members 18 are fixed to the main frame 11 with screws (not shown).

[0025] The combined right side surface member 16R, left side surface member 16L, and rail member 18 are fitted from above into a bottom surface member (not shown), which is, for example, a resin molded body, and together with the bottom surface member, form the inner box of the first main body portion 3. A heat insulating material (not shown), such as urethane foam, is filled between this inner box and the left outer box 12. This heat insulating material hardens after filling, and therefore serves to secure the inner box to the left outer box 12 and also to secure the main frame 11.

[0026] As shown in Figure 4, the second body 4 has a battery pack housing 22 (battery box) capable of housing a battery pack. The battery pack housing 22 is, for example, a resin molded body that has an opening on the upper side and is entirely closed except for the opening. The battery pack housing 22 is inserted from above into the opening of the main frame 11 and fixed to the main frame 11 by screws. The second cover 7 described above is a cover that can switch the opening of the battery pack housing 22 between an open state and a closed state, separate from the housing chamber 8.

[0027] The battery pack storage section 22 has two battery pack attachment sections 22a (battery pack connection sections) on the left side wall. One of the two battery pack attachment sections 22a corresponds to the first battery pack connection section, and the other corresponds to the second battery pack connection section. A battery pack 29 can be detachably attached (connected) to each battery pack attachment section 22a, as shown in FIG. 3 . Each battery pack attachment section 22a serves as an external output section when charging the attached battery pack 29. When charging the attached battery pack 29, the battery pack 29 serves as an external device. The battery pack 29 is, for example, a battery pack for a power tool with a rated output voltage of 18V. An electrical device 1 without a battery pack 29 attached corresponds to the "electrical device main body" of the present invention, and an electrical device 1 with a battery pack 29 attached corresponds to the "electrical device" of the present invention.

[0028] The electrical appliance 1 includes a setting unit 60. The setting unit 60 is provided at the upper right front end of the main body 2 and faces in an upward front direction. Using the setting unit 60, the user can turn the power of the electrical appliance 1 on and off, drive or stop the cooling / heating functional load unit 115 (described later), energize or stop devices connected to the cigarette lighter socket, and individually set the temperatures of the right room 8R and the left room 8L.

[0029] 7 is a simplified block diagram of the mechanical configuration of the electrical device 1. The electrical device 1 includes a compressor 41, a condenser 42, a capillary tube 43, refrigerant pipes 44, 45R, and 45L, and valves V1 and V2 as a cooling mechanism. The compressor 41, the condenser 42, and the capillary tube 43 are provided in the second main body 4.

[0030] The compressor 41 has a motor and compresses the refrigerant, outputting (discharging) it as a high-temperature, high-pressure gas. The compressor is a load (conversion unit) that converts the power supplied from the battery pack 29 into heat, and is also a load unit that is driven by the power supplied from the battery pack 29. The condenser 42 releases the heat of the refrigerant output from the compressor 41 and discharges the refrigerant as a liquid. The capillary tube 43 creates resistance to the flow of the refrigerant liquefied in the condenser 42, reducing the pressure and sending it out to the inlet sides of the valves V1 and V2 in the subsequent stage. The capillary tube 43 also forms part of the refrigerant pipe.

[0031] The refrigerant pipe 45R is provided corresponding to the right chamber 8R, and the refrigerant pipe 45L is provided corresponding to the left chamber 8L. The refrigerant pipes 45R, 45L extend along the outer surfaces of the right side member 16R and the left side member 16L shown in Figures 1 and 2, respectively, and merge at their ends. The refrigerant pipe 44 connects the junction of the refrigerant pipes 45R, 45L to the inlet of the compressor 41. As the refrigerant passes around the storage chamber 8, it absorbs heat from the storage chamber 8 and evaporates, becoming a gas.

[0032] The right refrigerant pipe 45R and the left refrigerant pipe 45L are independent of each other. That is, the right refrigerant pipe 45R is provided to mainly cool the right room 8R, and the left refrigerant pipe 45L is provided to mainly cool the left room 8L.

[0033] Each of the valves V1 and V2 is an electromagnetic valve with one flow path connectable to the outlet side and one flow path connectable to the inlet side (1 in 1 out type). The valves V1 and V2 are connected to the right refrigerant pipe 45R and the left refrigerant pipe 45L, respectively, and can individually adjust (open / close) the flow of refrigerant in the right refrigerant pipe 45R and the left refrigerant pipe 45L.

[0034] Although not shown, the electric device 1 has heaters (for example, wire heaters) provided corresponding to the left and right compartments 8L and 8R, respectively. The heaters are provided so as to cover the refrigerant pipes 45L and 45R, respectively.

[0035] FIG. 8 is a circuit block diagram of the electrical device 1, showing a state in which an AC-DC conversion circuit (AC adapter) 82 is connected as an external power source and battery packs 29a and 29b are attached. In FIG. 8, the two battery packs 29 shown in FIG. 3 are distinguished as battery packs 29a and 29b. One of the battery packs 29a and 29b corresponds to the first battery pack, and the other corresponds to the second battery pack. FIG. 8 mainly shows the circuit portion related to communication between the electrical device 1 and the battery packs 29a and 29b, and does not show the compressor 41 shown in FIG. 7 or the power supply path to the compressor 41. The manner in which power is supplied to the compressor 41 may be the same as in the conventional case.

[0036] The voltage of the AC power supply 81 (e.g., 100 V AC) is converted to, for example, 12 V DC by an AC-DC conversion circuit (AC adapter) 82 and input to the electrical device 1. The AC-DC conversion circuit 82 does not have to be external, and the electrical device 1 may have a built-in function equivalent to the AC-DC conversion circuit 82. The charging control circuit 83 converts the output voltage of the AC-DC conversion circuit 82 to a voltage suitable for charging the battery pack 29a or 29b and supplies the voltage to the battery pack 29a or 29b. The charging control circuit 83 is an example of a charging unit of the present invention.

[0037] The control power supply generation unit 84 converts the output voltage of the ACDC conversion circuit 82 into a power supply voltage for the cooling / heating control MCU 85, the battery control MCU 87, etc., and supplies it to the cooling / heating control MCU 85, the battery control MCU 87, etc. The cooling / heating control MCU 85 controls the cooling / heating control circuit 86. The cooling / heating control circuit 86 controls the drive of the compressor 41 shown in FIG. 7.

[0038] The switches SW3 to SW7 are provided in the setting unit 60 shown in FIG. 1 etc. and are operated by the user. The switch SW3 is a switch that switches on and off the cooling or heating operation of the electrical appliance 1. The switch SW4 is a switch that is operated to increase the set temperature of the left room 8L. The switch SW5 is a switch that is operated to decrease the set temperature of the left room 8L. The switch SW6 is a switch that is operated to increase the set temperature of the right room 8R. The switch SW7 is a switch that is operated to decrease the set temperature of the right room 8R.

[0039] The battery control MCU 87 controls communication with the battery packs 29a, 29b and charging of the battery packs 29a, 29b. The battery control MCU 87, together with the cooling / heating control MCU 85, constitutes the control unit of the electrical device 1. The battery control MCU 87 may be integrated with the cooling / heating control MCU 85. The battery control MCU 87 is configured to be capable of wireless communication with the mobile terminal 150 shown in FIG. 9 via the MCU 104 with wireless communication function of the battery pack 29a or 29b.

[0040] The mode switching unit 88 switches between receiving an analog signal indicating the temperature of the battery pack 29a from the battery pack 29a via the LS terminal (analog communication) and performing digital communication with the battery pack 29a via the LS terminal. The communication control unit 89 controls digital communication between the battery control MCU 87 and the battery pack 29a (MCU 104 with wireless communication function). The battery temperature AD detection unit 90 receives an analog signal indicating the temperature of the battery pack 29a and transmits it to the battery control MCU 87.

[0041] The mode switching unit 91 switches between receiving an analog signal indicating the type of battery pack 29a (rated voltage, etc.) from the battery pack 29a via the T terminal (analog communication) and performing digital communication with the battery pack 29a via the T terminal. The communication control unit 92 controls digital communication between the battery control MCU 87 and the battery pack 29a (MCU 104 with wireless communication function). The battery identification AD detection unit 93 receives an analog signal indicating the type of battery pack 29a and transmits it to the battery control MCU 87.

[0042] The mode switching unit 94 switches between receiving an analog signal indicating the temperature of the battery pack 29b from the battery pack 29b via the LS terminal (analog communication) and performing digital communication with the battery pack 29b via the LS terminal. The communication control unit 95 controls digital communication between the battery control MCU 87 and the battery pack 29b (MCU 104 with wireless communication function). The battery temperature AD detection unit 96 receives an analog signal indicating the temperature of the battery pack 29b and transmits it to the battery control MCU 87.

[0043] The mode switching unit 97 switches between receiving an analog signal indicating the type of battery pack 29b (rated voltage, etc.) from the battery pack 29b via the T terminal (analog communication) and performing digital communication with the battery pack 29b via the T terminal. The communication control unit 98 controls digital communication between the battery control MCU 87 and the battery pack 29b (MCU 104 with wireless communication function). The battery identification AD detection unit 99 receives an analog signal indicating the type of battery pack 29b and transmits it to the battery control MCU 87.

[0044] The LS terminal and T terminal on the electrical device 1 side are examples of main body side communication terminals. The LS terminal and T terminal on the battery packs 29a, 29b side are examples of battery side communication terminals. The analog signal indicating the temperature of the battery packs 29a, 29b and the analog signal indicating the type of the battery packs 29a, 29b (rated voltage, etc.) are examples of information related to the battery packs 29a, 29b, respectively.

[0045] In the digital communication between the electric device 1 and the battery pack 29a or 29b via the LS terminal and the T terminal, information about the electric device 1 itself, such as the model name, model number, and current control status (for example, the set temperature and the progress of charging), is transmitted to the battery pack 29a or 29b, and then transmitted (transferred) from the battery pack 29a or 29b to the mobile terminal 150 shown in Fig. 9. In addition, a digital signal for changing the control of the electric device 1 is transmitted from the mobile terminal 150 to the battery pack 29a or 29b as information about the electric device 1, and then transmitted (transferred) to the electric device 1 by digital communication via the LS terminal and the T terminal.

[0046] Each of the battery packs 29a and 29b includes a battery cell 101, a battery protection control unit 102, a power generation unit 103, an MCU 104 with wireless communication function, a communication control unit 105, a battery temperature monitoring unit 106, a battery identification unit 107, and a wireless function on / off switch SW.

[0047] The battery cell 101 is a secondary battery cell such as a lithium ion battery. The battery protection control unit 102 is an IC for protecting the battery cell 101. The power generation unit 103 converts the output voltage of the battery cell 101 into a power supply voltage for the MCU 104 with wireless communication function and supplies it to the MCU 104 with wireless communication function.

[0048] The MCU 104 with wireless communication function is the control unit of the battery pack and also the wireless communication unit of the battery pack. The MCU 104 with wireless communication function has a short-range wireless communication function such as Bluetooth (registered trademark) and communicates wirelessly with the mobile terminal 150 shown in Fig. 9. The communication control unit 105 controls digital communication between the MCU 104 with wireless communication function and the electrical device 1 (battery control MCU 87).

[0049] The battery temperature monitoring unit 106 includes a temperature detection element such as a thermistor disposed near the battery cell 101, and outputs an analog signal (analog voltage) corresponding to the temperature of the battery cell 101 to the LS terminal. The battery identification unit 107 includes an identification resistor corresponding to the rated voltage of the battery pack to which it belongs, and outputs an analog signal (analog voltage) corresponding to the rated voltage to the T terminal. The wireless function on / off switch SW is an operation unit that allows the user to turn on / off the wireless communication function of the MCU 104 with wireless communication function, i.e., switch between a wireless communication standby state and a non-standby state. For example, by pressing and holding the wireless function on / off switch SW, the MCU 104 with wireless communication function enters a wireless communication standby state.

[0050] 9A is a schematic diagram showing that when wireless communication is established between one of the battery packs 29b, 29b attached to the electrical device 1 and the mobile terminal 150, wireless communication between the other of the battery packs 29b, 29b and the mobile terminal 150 is disabled. When both battery packs 29b, 29b are attached to the electrical device 1, the battery control MCU 87 is configured to allow only one of the battery packs 29b, 29b to communicate wirelessly with the external device, the mobile terminal 150, in order to prevent communication disruption. The mobile terminal 150 is a smartphone, tablet terminal, or the like.

[0051] 9B to 9D are diagrams showing screens on the mobile terminal 150 for inputting an authentication code when wirelessly connecting to the electrical device 1. A management application (hereinafter, "management app") for managing the electrical device 1 is installed on the mobile terminal 150. When the mobile terminal 150 attempts to connect to the electrical device 1 via the battery pack 29a or 29b using the management app's function, an authentication code is requested. When the user enters the correct authentication code and taps the send button, the management app's function enables the mobile terminal 150 to change the control of the electrical device 1. Note that in FIGS. 9B and 9C, the send button is inactive because the authentication code has not yet been entered. As shown in FIG. 9D, the send button becomes active once the authentication code is entered. If authentication is successful, a message such as "Authentication code 'ABC123' has been registered" is displayed (not shown). The authentication code may be configured to be entered each time the mobile terminal 150 connects to the electrical device 1. Alternatively, once authentication is successfully completed, the mobile terminal 150 may store the authentication code in nonvolatile memory, for example, in the battery control MCU 87 of the electrical device 1, eliminating the need to enter the authentication code when connecting to the electrical device 1 for the second or subsequent times. Furthermore, when authentication is successful, the battery pack that relays communication between the electric device 1 and the mobile terminal 150 may be stored in the non-volatile memory of the battery control MCU 87 .

[0052] FIG. 9(E) shows a screen on the mobile device 150 when setting the operation of the electrical appliance 1. If authentication is successful, the screen shown in FIG. 9(E) appears, allowing the user to change the control of the electrical appliance 1 from the management app on the mobile device 150. An example of the operation method is described below. Using the L button and R button, the user can select whether to change the temperature setting for the left room 8L or the right room 8R. In the illustrated state, the right room 8R is selected. The current temperature displays the temperature of the selected room. The temperature of the selected room is an example of detection information detected regarding the electrical appliance 1 and is obtained from the electrical appliance 1 via communication. The set temperature can be increased or decreased using the + button and - button. The set temperature is displayed between the + button and - button. After setting, tapping the send button sends the set temperature to the electrical appliance 1 via communication, changing the set temperature of the electrical appliance 1. After setting is complete, a message such as "Room R / Set to 10°C" is displayed (not shown).

[0053] Although not shown in the figure, the management app has a function for setting the charging operation of the battery packs 29 a and 29 b in the electrical device 1. In this function, the management app displays on the screen of the mobile terminal 150 the current remaining charge (%) of the battery packs 29 a and 29 b, which of the battery packs 29 a and 29 b is being charged, and the current charging settings. This information is an example of information detected about the battery packs and is acquired from the battery packs via communication. The charging settings include, for example, a mode for charging the battery pack with the lowest remaining charge first, a mode for charging the battery pack with the highest remaining charge first, a mode for charging the two battery packs sequentially while aligning their remaining charges, a mode for stopping charging at a predetermined remaining charge before full charge, and a save mode (a charging mode that puts less strain on the battery packs). The user can select any mode by operating the management app. The charging settings transmitted from the mobile terminal 150 to the electrical device 1 are an example of setting information.

[0054] 10 is a control flowchart of the electric appliance 1. It is assumed that the electric appliance 1 receives a DC voltage from the AC-DC conversion circuit 82.

[0055] The battery control MCU 87 sets both the LS terminal and the T terminal of each of the two battery pack mounting sections 22a to non-communication mode (S1), detects the connection of the battery pack mounting section 22a (S3), and starts charging (S5). In the non-communication mode, the LS terminal and the T terminal receive an analog signal indicating the temperature and an analog signal indicating the type from the battery pack (communicating information about the battery pack). In other words, the non-communication mode in Figure 10 is an example of the battery information communication mode. The processing from S5 onwards is performed while the battery pack 29a or 29b is being charged.

[0056] When both battery packs 29a and 29b are connected (S7), the battery control MCU 87 sets the LS terminal and T terminal of each of battery packs 29a and 29b to communication mode (S9), acquires information about battery pack 29a via digital communication (S11), and acquires information about battery pack 29b via digital communication (S13).

[0057] If the wireless communication permission flag of the battery pack 29a is on (Y in S15), the battery control MCU 87 turns off the wireless communication permission flag of the battery pack 29b (S17) and sends a communication connection waiting signal to the battery pack 29a (S19).

[0058] If the wireless communication permission flag of the battery pack 29a is off (N in S15) and the wireless communication permission flag of the battery pack 29b is off (N in S21), the battery control MCU 87 sends a communication connection waiting signal to the battery pack 29a (S19).

[0059] If the wireless communication permission flag of the battery pack 29a is off (N in S15) and the wireless communication permission flag of the battery pack 29b is on (Y in S21), the battery control MCU 87 sends a communication connection waiting signal to the battery pack 29b (S23).

[0060] The wireless communication permission flag is a flag that indicates whether or not the battery pack attached to the electrical device 1 is permitted to wirelessly communicate with the management app of the mobile terminal 150 to change the control of the electrical device 1 (remote control of the electrical device 1), and is stored in non-volatile memory by the battery control MCU 87.

[0061] If only the battery pack 29a is connected (S25), the battery control MCU 87 sets the LS terminal and T terminal of the battery pack 29a to communication mode (S27), acquires information about the battery pack 29a by digital communication (S29), and transmits a communication connection waiting signal to the battery pack 29a (S31). Before S31, the battery control MCU 87 may turn on the wireless communication permission flag of the battery pack 29a and store it in non-volatile memory.

[0062] If only battery pack 29b is connected (S33), the battery control MCU 87 sets the LS terminal and T terminal of battery pack 29b to communication mode (S35), acquires information about battery pack 29b by digital communication (S37), and transmits a communication connection wait signal to battery pack 29b (S39). Before S39, the battery control MCU 87 may turn on the wireless communication permission flag of battery pack 29b and store it in non-volatile memory.

[0063] When each of the battery packs 29a and 29b receives the communication connection waiting signal, it enters the same state as when the wireless function on / off switch SW is pressed and held, that is, enters a wireless communication waiting state.

[0064] When the battery pack that has received the communication connection wait signal (hereinafter referred to as the "communication battery pack") receives communication data, for example, a signal to change the control of the electrical device 1, from the management application of the mobile terminal 150 (Y in S41), the battery control MCU 87 acquires the communication data from the management application through digital communication with the communication battery pack (S43) and changes the temperature setting of the electrical device 1 as needed (S45). Thereafter, or if the battery control MCU 87 does not receive communication data from the management application of the mobile terminal 150 for a predetermined period of time in S41 (N in S41), the battery control MCU 87 sets the LS and T terminals of the communication battery pack to non-communication mode (S47), reads the temperature of the communication battery pack from the analog signal indicating the temperature of the communication battery pack (S49), sets the LS and T terminals of the communication battery pack to communication mode (S51), and returns to S41.

[0065] Although not shown in the drawings, in the communication mode, information about the main body of the electric appliance 1, i.e., the model name, model number, current control status (e.g., current internal temperature, set temperature, charging progress), etc., is transmitted as needed from the electric appliance 1 to the mobile terminal 150 via the communication battery pack, and displayed on the screen of the mobile terminal 150. The communication mode is an example of the main body information communication mode.

[0066] In S41, the battery control MCU 87 and the MCU 104 with wireless communication function of the communication battery pack may communicate regarding charging while waiting for communication data from the management application of the mobile terminal 150. If the MCU 104 with wireless communication function of the communication battery pack receives communication data, for example a signal to change the control of the electrical device 1, from the management application of the mobile terminal 150 while communicating with the battery control MCU 87 regarding charging, the MCU 104 interrupts the communication regarding charging and relays the wireless communication between the mobile terminal 150 and the electrical device 1.

[0067] This embodiment has the following advantages.

[0068] (1) The battery control MCU 87 is configured to be able to communicate wirelessly with the portable terminal 150 via the MCU 104 with wireless communication function of the communication battery pack. Therefore, even if the main body of the electrical device 1 does not have a wireless communication unit, wireless communication with the portable terminal 150 is possible via the communication battery pack, thereby improving convenience. In particular, in both cases where the communication battery pack is supplying power to the load unit and where the communication battery pack is being charged by the charging unit, the battery control MCU 87, which is the control unit, is configured to be able to communicate wirelessly with the portable terminal 150, which is an external device, via the wireless communication unit of the communication battery pack.

[0069] (2) When both battery packs 29a and 29b are attached to the electrical device 1 at the same time, the battery control MCU 87 is configured to disable wireless communication between the other battery pack 29b and the mobile terminal 150 when wireless communication between one of the battery packs 29b and 29b is established. Furthermore, when both battery packs 29a and 29b are attached at the same time but wireless communication with the mobile terminal 150 is not established, the battery control MCU 87 sets one of the battery packs 29a and 29b to a wireless communication standby state and the other to a non-wireless communication standby state. This prevents confusion caused by both battery packs 29b and 29b simultaneously communicating wirelessly with the mobile terminal 150.

[0070] (3) The battery control MCU 87 is configured to be able to wirelessly communicate with the portable terminal 150 via the MCU 104 with wireless communication function of the battery pack 29a or 29b while charging the battery pack 29a or 29b. Therefore, the control of the electrical device 1 can be changed from the portable terminal 150 even while the battery pack 29a or 29b is being charged, which improves convenience.

[0071] (4) The battery control MCU 87 controls the LS and T terminals of the communication battery pack to alternate between communication mode and non-communication mode. Therefore, in non-communication mode, the battery control MCU 87 receives an analog signal indicating the temperature of the communication battery pack to recognize the temperature of the communication battery pack and use it to control charging of the communication battery pack, while in communication mode, it receives a digital signal from the mobile terminal 150 via the communication battery pack to change the control of the electrical device 1, improving convenience.

[0072] (5) The battery control MCU 87 requests an authentication code from the management application of the mobile terminal 150, and input of the correct authentication code is a necessary condition for the management application of the mobile terminal 150 to change the control of the electrical device 1. This reduces the risk that a third party who does not know the authentication code will remotely change the control of the electrical device 1.

[0073] (6) When the battery control MCU 87 detects the connection of the battery pack 29a or 29b, it transmits a communication connection wait signal to the battery pack 29a or 29b, thereby putting the battery pack 29a or 29b into a wireless communication standby state. This eliminates the need for the user to operate the wireless function on / off switch SW of the battery pack 29a or 29b when remotely operating the electrical device 1 using the management app on the mobile terminal 150, thereby improving convenience. In particular, since the battery pack housing 22 housing the battery packs 29a and 29b in the electrical device 1 is closed by the second lid 7, not having to operate the wireless function on / off switch SW of the battery pack 29a or 29b is a significant advantage.

[0074] (7) When the MCU 104 with wireless communication function of the communication battery pack receives communication data from the management application of the mobile terminal 150 while communicating with the battery control MCU 87 regarding charging, the MCU 104 interrupts the communication regarding charging and relays the wireless communication between the mobile terminal 150 and the electrical device 1. Therefore, when communication data is not received from the management application of the mobile terminal 150, communication regarding charging is possible, improving convenience.

[0075] (8) The management app functions enable the mobile terminal 150 to display information about the main body of the electric appliance 1, such as the model name, model number, and current control status (for example, the current internal temperature, set temperature, and charging progress), as well as the current remaining charge (%) of the battery packs 29a and 29b, which of the battery packs 29a and 29b is being charged, and the current charging settings, and to remotely change the set temperature and charging settings of the electric appliance 1. This reduces the effort required for a user who is away from the electric appliance 1 to operate the setting unit 60 of the electric appliance 1, thereby improving convenience.

[0076] Although the present invention has been described above using the embodiments as examples, the present invention is not limited to the embodiments. Various modifications can be made to the details specifically described in the embodiments within the scope of the claims.

[0077] The voltages and temperatures given as specific numerical values ​​in the embodiments, the number of battery packs that can be attached to the electrical device 1, etc., do not limit the scope of the invention in any way and can be changed as desired to suit the required specifications.

[0078] The setting unit 60 of the electrical device 1 may have a remote control permission / denial setting unit that sets whether or not to permit changes to the control by the mobile terminal 150. In this case, if the setting does not permit changes to the control by the mobile terminal 150, the battery control MCU 87 does not transmit a communication connection wait signal to the battery packs 29a and 29b. This prevents the battery packs 29a and 29b from entering a wireless communication standby state unnecessarily, and reduces power consumption of the battery packs 29a and 29b.

[0079] (Embodiment 2) Fig. 11 shows an electric device 1 according to embodiment 2. In Fig. 11, a battery pack 29a serving as a first battery pack and a battery pack 29b serving as a second battery pack are simultaneously attached to the electric device 1, and a battery control MCU 87 establishes wireless communication with a mobile terminal 150 via an MCU 104a with wireless communication function serving as a first wireless communication unit included in the battery pack 29a and an MCU 104b with wireless communication function serving as a second wireless communication unit included in the battery pack 29b.

[0080] 11A, the battery control MCU 87 establishes a first wireless communication with a mobile terminal 150a, which is a first external device, via an MCU 104a with wireless communication function included in a battery pack 29a, and establishes a second wireless communication with a mobile terminal 150b, which is a second external device, via an MCU 104b with wireless communication function included in a battery pack 29b. The battery control MCU 87 is configured to control a compressor 41, which is a load unit, in accordance with instructions received from either the mobile terminal 150a or the mobile terminal 150b via either the first wireless communication or the second wireless communication.

[0081] In Fig. 11(B), the mobile terminal 150a transmits a first instruction, the battery control MCU 87 receives the first instruction, and controls the compressor 41 according to the first instruction. Immediately thereafter, in Fig. 11(C), the mobile terminal 150b transmits a second instruction, the battery control MCU 87 receives the second instruction from the mobile terminal 150b, overwrites the first instruction with the second instruction, and controls the compressor 41 according to the second instruction.

[0082] As shown in Fig. 11(B), the battery control MCU 87 transmits a notification to the battery pack 29b via the second wireless communication that it has received a first instruction from the battery pack 29a via the first wireless communication. Also, as shown in Fig. 11(C), the battery control MCU 87 transmits a notification to the battery pack 29a via the first wireless communication that it has received a second instruction from the battery pack 29b via the second wireless communication.

[0083] That is, the battery control MCU 87 is configured to output first battery pack information, which is information about the first battery pack, to the second battery pack and / or output second battery pack information, which is information about the second battery pack, to the first battery pack. Such battery pack information may include, in addition to the information notifying that another instruction has been sent from another battery pack as described above, information indicating that another battery pack has been attached to the electrical device body and information indicating the remaining capacity of another battery pack.

[0084] The battery control MCU 87 may be configured to control the compressor 41 only in accordance with instructions received via either the first wireless communication or the second wireless communication.

[0085] (Embodiment 3) Fig. 12 shows an electric device 1 according to embodiment 3. In Fig. 12, a battery pack 29a is attached to the electric device 1, and a battery control MCU 87 of the electric device 1 establishes a first wireless connection with a mobile terminal 150a via an MCU 104a with wireless communication function provided in the battery pack 29a. Furthermore, the battery control MCU 87 of the electric device 1 also has a wireless communication function, and establishes a second wireless connection with the mobile terminal 150a via the wireless communication function provided in the battery control MCU 87. With the first wireless communication and the second wireless communication established, the battery control MCU 87 is configured to control the compressor 41 in accordance with instructions received from the mobile terminal 150a via either the first wireless communication or the second wireless communication. The battery control MCU 87 with wireless communication function is an example of a main body wireless communication unit.

[0086] That is, when the battery pack 29a is attached to the battery pack attachment section, the battery control MCU 87 is configured to be able to communicate a first wireless communication with the mobile terminal 150a via the MCU 104a with wireless communication function of the battery pack 29a, and to be able to communicate a second wireless communication with the mobile terminal 150a via the battery control MCU 87 of the electrical device main body 1. If the battery control MCU 87 is configured to maintain the second wireless communication when the first wireless communication is interrupted from a state in which the first wireless communication and the second wireless communication are established, the wireless communication with the mobile terminal 150a can be stably maintained. Alternatively, if the battery control MCU 87 is configured to establish the second wireless communication when the first wireless communication is interrupted from a state in which the first wireless communication is established but the second wireless communication is not established, the wireless communication with the mobile terminal 150a can be stably maintained. Alternatively, when the battery control MCU 87 detects that the battery pack 29a, which has established wireless communication with the mobile terminal 150a, is attached to the battery pack attachment section, it may output a command to the MCU 104a with wireless communication function of the battery pack 29a to interrupt the wireless communication between the battery pack 29a and the mobile terminal 150a, thereby establishing or maintaining wireless communication between the battery control MCU 87 and the mobile terminal 150a. This configuration can reduce power consumption of the battery pack 29a due to wireless communication and prevent unexpected termination of the wireless connection. Alternatively, when the battery pack 29a, which has established wireless communication with the mobile terminal 150a, is attached to the battery pack attachment section, the user may operate the mobile terminal 150a to terminate the wireless communication between the battery pack 29a and the mobile terminal 150a and to establish or maintain wireless communication between the battery control MCU 87 and the mobile terminal 150a. This configuration can reduce power consumption of the battery pack 29a due to wireless communication and prevent unexpected termination of the wireless connection.

[0087] 13 , a battery pack 29a is attached to the electrical device 1, and a battery control MCU 87 of the electrical device 1 establishes a first wireless communication with a mobile terminal 150a via an MCU 104a with a wireless communication function provided in the battery pack 29a. Furthermore, the battery control MCU 87 establishes a second wireless communication with a mobile terminal 150b via the wireless communication function provided in the battery control MCU 87. The battery control MCU 87 is configured to, upon receiving a first instruction from the mobile terminal 150a, control the compressor 41 in accordance with the first instruction, and, upon immediately thereafter receiving a second instruction from the mobile terminal 150b that is different from the first instruction, overwrite the first instruction with the second instruction and control the compressor 41 in accordance with the second instruction.

[0088] The battery control MCU may be configured to control the compressor 41 only in accordance with instructions received via either the first wireless communication or the second wireless communication.

[0089] (Fourth embodiment) Fig. 14 shows an electric device 1 according to a fourth embodiment. In Fig. 14, a battery pack 29a serving as a first battery pack and a battery pack 29b serving as a second battery pack are both attached to the electric device 1. Neither battery pack 29a nor battery pack 29b has a wireless communication function. A compressor 41 is driven by power supplied from battery pack 29a or battery pack 29b.

[0090] A switching unit 30a serving as a first switching unit that switches whether the first battery pack mounting unit is connected to or disconnected from the compressor 41 is provided between the first battery pack mounting unit and the compressor 41. Furthermore, a switching unit 30b serving as a second switching unit that switches whether the second battery pack mounting unit is connected to or disconnected from the compressor 41 is provided between the second battery pack mounting unit and the compressor 41. The battery control MCU 87 is configured to control the compressor 41, the switching unit 30a, and the switching unit 30b.

[0091] In FIG. 14A, both battery packs 29a and 29b are nearly fully charged. Battery pack 29a is first connected to the electrical device 1, and switching unit 30a is engaged, starting the supply of power from battery pack 29a to compressor 41. Battery pack 29b is then connected to the electrical device 1, but switching unit 30b is disconnected. As shown in FIG. 14B, the remaining capacity of battery pack 29a decreases, and when the voltage of battery pack 29a drops to cut-off threshold VS1, switching unit 30a is disconnected. Cut-off threshold VS1 is set to a voltage slightly higher than the voltage at which the battery pack attached to the battery pack attachment section becomes over-discharged. After switching unit 30a is disconnected, switching unit 30b is connected, starting the supply of power from battery pack 29b to compressor 41. Cut-off threshold VS1 is an example of a first cut-off threshold.

[0092] FIG. 15 illustrates a state in which a battery pack 29a having an MCU 104a with wireless communication capability and a battery pack 29b without wireless communication capability are simultaneously attached to the electrical device 1 as a first battery pack. In FIG. 15(A), both battery packs 29a and 29b are substantially fully charged. However, battery pack 29a is first connected to the electrical device 1, the switching unit 30a is engaged, and power supply from battery pack 29a to compressor 41 begins. Subsequently, battery pack 29b is connected to the electrical device 1, but the switching unit 30b is disconnected. As shown in FIG. 15(B), the remaining capacity of battery pack 29a decreases, and the voltage of battery pack 29a drops to the cutoff threshold VS2, causing the switching unit 30a to cut off. The cutoff threshold VS2 is set to a voltage higher than the cutoff threshold VS1. This prevents unexpected disconnection of the wireless communication connection via the wireless communication unit of the first battery pack. The cutoff threshold VS2 is an example of a second cutoff threshold.

[0093] When the compressor 41 is configured to be driven by power supplied from the battery pack 29a or the battery pack 29b, the battery control MCU is configured to, from a state in which the first switching unit is connected, shut off the first switching unit when the voltage of the battery pack 29a equipped with the wireless communication unit drops to the second shutoff threshold, and then shut off the first switching unit and then connect the second switching unit. This maintains the supply of power to the compressor 41. Alternatively, when the compressor 41 is configured to be driven by power supplied from the battery pack 29a or the battery pack 29b, the battery control MCU is configured to, from a state in which the first switching unit and the first switching unit are connected, shut off the first switching unit when the voltage of the battery pack 29a equipped with the wireless communication unit drops to the second shutoff threshold, and then maintain the second switching unit connected. This maintains the supply of power to the compressor 41. The battery control MCU is configured to detect whether a battery pack having a wireless connection part is attached to battery pack attachment part 1 or battery pack attachment part 2 by communicating with each battery pack.

[0094] 16 shows an electric device 1 according to a fifth embodiment, which is a partial modification of the electric device 1 according to the fourth embodiment. In Fig. 15, a battery pack 29a having an MCU 105a with wireless communication function as a first battery pack and a battery pack 29b having an MCU 105b with wireless communication function as a second battery pack are both attached to the electric device 1. Descriptions of the configurations and operations common to the fourth embodiment will be omitted.

[0095] In Fig. 15(A), both battery pack 29a and battery pack 29b are in a nearly fully charged state. Battery pack 29a is first connected to the electrical device 1, and switching unit 30a is engaged, starting the supply of power from battery pack 29a to compressor 41. A first wireless connection is then established between battery control MCU 87 and mobile terminal 150 via battery pack 29a. After that, battery pack 29b is connected to electrical device 1, but switching unit 30b is disconnected. Thereafter, as shown in Fig. 15(B), the remaining capacity of battery pack 29a decreases, and when the voltage of battery pack 29a drops to disconnect threshold value VS2, switching unit 30a is disconnected.

[0096] 15 shows a state in which a battery pack 29a having an MCU 104a with wireless communication capability and a battery pack 29b without wireless communication capability are simultaneously attached to the electrical device 1 as a first battery pack. In FIG. 15(A), both battery packs 29a and 29b are substantially fully charged, but battery pack 29a is connected to the electrical device 1 first, switching unit 30a is engaged, and power supply from battery pack 29a to compressor 41 is initiated. Battery pack 29b is then connected to the electrical device 1, but switching unit 30b is disconnected. As shown in FIG. 15(B), the remaining capacity of battery pack 29a decreases, and when the voltage of battery pack 29a drops to the disconnect threshold VS2, switching unit 30a is disconnected. After switching unit 30a is disconnected, switching unit 30b is connected, and power supply from battery pack 29b to compressor 41 is initiated. The first wireless communication is maintained for a while via the battery pack 29a, but eventually the remaining capacity of the battery pack 29a decreases further, the voltage drops to the cut-off threshold value VS1, and the first wireless communication is terminated.

[0097] When the battery control MCU 87 detects that the voltage of the battery pack 29a has dropped to the cutoff threshold VS1 or that the first wireless communication has been terminated, it establishes a second wireless communication with the mobile terminal 150 via the MCU 104b with wireless communication function of the battery pack 29b, as shown in FIG. 16(B). This allows the wireless communication between the battery control MCU 87 and the mobile terminal to be maintained. Note that the battery control MCU 87 may be configured to establish the second wireless communication with the mobile terminal 150 via the MCU 104b with wireless communication function of the battery pack 29b when the voltage of the battery pack 29a drops to a switching threshold VS3, which is a voltage higher than the cutoff threshold VS1. The cutoff threshold VS1 and the switching threshold VS3 are both examples of a connection switching threshold.

[0098] The electrical device of the present invention is not limited to a refrigerator / freezer, but may also be a light having a load unit (conversion unit) that converts the power of a battery pack into light, a radio or music player having a load unit (conversion unit) that converts the power of a battery pack into sound, etc. Furthermore, the present invention can also be applied to a fan or work machine having a load unit (motor, etc.) that converts the power of a battery pack into motive power.

[0099] 1...electrical equipment, 2...main body, 3...first main body portion, 4...second main body portion, 5...lid body, 6...first lid body, 6a...handle portion, 7...second lid body, 7a...handle portion, 8...accommodation chamber (accommodation portion), 8R...right room (first accommodation chamber), 8L...left room (second accommodation chamber), 11...main frame, 12...left outer box, 13...right outer box, 16R...right side member, 16L...left side member, 18...rail member, 19...caster, 20...movable handle (carry - handle), 21...grip portion, 22...battery pack storage portion, 22a...battery pack mounting portion, 23...air intake port, 24...air exhaust port, 25...first hinge mechanism, 26...second hinge mechanism, 27A...USB terminal, 27B...cigarette lighter socket, 28...external power input terminal (external power connection portion), 29, 29a, 29b...battery pack, 35...leg portion, 41...compressor (cooler), 42...condenser, 43...capillary tube (capillary tube), 44...refrigerant pipe, 45R...right refrigerant pipe, 45L...left refrigerant pipe, V1...first valve, V2...second valve, 81...AC power supply, 82...AC-DC conversion circuit (AC adapter), 83...charging control circuit, 84...control power supply generation unit, 85...cooling / heating control MCU, 86...cooling / heating control circuit, 87...battery control MCU, 88...mode switching unit, 89...communication control unit, 90...battery temperature AD detection unit, 91...mode switching unit, 92... Communication control unit, 93...battery identification AD detection unit, 94...mode switching unit, 95...communication control unit, 96...battery temperature AD detection unit, 97...mode switching unit, 98...communication control unit, 99...battery identification AD detection unit, 101...battery cell, 102...battery protection control unit, 103...power generation unit, 104...MCU with wireless communication function, 105...communication control unit, 106...battery temperature monitoring unit, 107...battery identification unit, 150...mobile terminal (external device).

Claims

1. A battery pack mounting section capable of mounting a battery pack having a battery cell and a wireless communication unit, A load unit that converts the power supplied from the battery pack, which is mounted on the battery pack mounting section, into heat, light, sound, or power, An electrical device body having a control unit that controls the load unit and is configured to enable wireless communication with an external device via the wireless communication unit of the battery pack, A first battery pack mounting section capable of mounting a first battery pack having a first wireless communication unit, It has a second battery pack mounting section to which a second battery pack having a second wireless communication unit can be attached, When the first battery pack is installed in the first battery pack mounting section and the second battery pack is installed in the second battery pack mounting section, the control unit is configured to prevent the establishment of wireless communication between the second battery pack and the external device when wireless communication between the first battery pack and the external device is established. An electrical appliance body characterized by the following features.

2. A battery pack mounting section capable of mounting a battery pack having a battery cell and a wireless communication unit, A load unit that converts the power supplied from the battery pack, which is mounted on the battery pack mounting section, into heat, light, sound, or power, An electrical device body having a control unit that controls the load unit and is configured to enable wireless communication with an external device via the wireless communication unit of the battery pack, A first battery pack mounting section capable of mounting a first battery pack having a first wireless communication unit, It has a second battery pack mounting section to which a second battery pack having a second wireless communication unit can be attached, When the first battery pack is installed in the first battery pack mounting section and the second battery pack is installed in the second battery pack mounting section, the control unit is configured to enable wireless communication with an external device via the first wireless communication unit of the first battery pack, and to enable wireless communication with an external device via the second wireless communication unit of the second battery pack. An electrical appliance body characterized by the following features.

3. The main body of the electrical equipment according to claim 2, When the first battery pack establishes a first wireless communication with a first external device via the first wireless communication unit, and the second wireless communication with a second external device is established via the second wireless communication unit of the second battery pack, the control unit is configured to control the load unit according to the instructions received via either the first wireless communication or the second wireless communication. An electrical appliance body characterized by the following features.

4. The main body of the electrical equipment according to claim 2, When the first battery pack establishes a first wireless communication with a first external device via the first wireless communication unit, and the second wireless communication with a second external device is established via the second wireless communication unit of the second battery pack, the control unit is configured to control the load unit according to instructions received via either the first wireless communication or the second wireless communication. An electrical appliance body characterized by the following features.

5. A battery pack mounting section capable of mounting a battery pack having a battery cell and a wireless communication unit, A load unit that converts the power supplied from the battery pack, which is mounted on the battery pack mounting section, into heat, light, sound, or power, An electrical device body having a control unit that controls the load unit and is configured to enable wireless communication with an external device via the wireless communication unit of the battery pack, The main unit has a wireless communication unit configured to enable wireless communication with external devices. When the battery pack is installed in the battery pack mounting section, the control unit is configured to enable wireless communication with an external device via the wireless communication unit of the battery pack, and / or to enable wireless communication with an external device via the wireless communication unit of the main body of the electrical device. An electrical appliance body characterized by the following features.

6. The main body of the electrical equipment according to claim 5, When the battery pack establishes a first wireless communication with a first external device via the wireless communication unit it has, and the electrical device body establishes a second wireless communication with a second external device via the main unit wireless communication unit it has, the control unit is configured to control the load unit according to the instructions received via either the first wireless communication or the second wireless communication. An electrical appliance body characterized by the following features.

7. The main body of the electrical equipment according to claim 5, The control unit is configured to control the load unit in accordance with the first instruction when it receives a first instruction from the first external device, and then to control the load unit in accordance with the second instruction when it receives a second instruction from the second external device that is different from the first instruction. An electrical appliance body characterized by the following features.

8. The main body of the electrical equipment according to claim 5, When the battery pack establishes a first wireless communication with a first external device via the wireless communication unit it has, and the electrical device body establishes a second wireless communication with a second external device via the main unit wireless communication unit it has, the control unit is configured to control the load unit according to instructions received via either the first wireless communication or the second wireless communication. An electrical appliance body characterized by the following features.

9. A first battery pack mounting section into which the first battery pack can be attached, A second battery pack mounting section into which a second battery pack can be attached, A load unit driven by power supplied from the first battery pack mounted in the first battery pack mounting section and / or the second battery pack mounted in the second battery pack mounting section, A first switching unit that switches between connecting or disconnecting the first battery pack mounted on the first battery pack mounting section and the load section, A second switching unit that switches between connecting or disconnecting the second battery pack mounted on the second battery pack mounting section and the load section, An electrical device body having a load unit, a first switching unit and a control unit for controlling the second switching unit, When a battery pack without a wireless communication unit is installed as the first battery pack in the first battery pack mounting section, and a battery pack without a wireless communication unit is installed as the second battery pack in the second battery pack mounting section, the control unit shuts off the first switching unit when the voltage of the first battery pack drops to a first cutoff threshold. When a battery pack equipped with a wireless communication unit is installed as the first battery pack in the first battery pack mounting section, the control unit is configured to shut off the first switching unit when the voltage of the first battery pack drops to a second shut-off threshold that is higher than the first shut-off threshold. An electrical appliance body characterized by the following features.

10. The main body of the electrical equipment according to claim 9, The control unit is configured to connect the second switching unit after shutting off the first switching unit. An electrical appliance body characterized by the following features.

11. A first battery pack mounting section into which the first battery pack can be attached, A second battery pack mounting section into which a second battery pack can be attached, A load unit driven by power supplied from the first battery pack mounted in the first battery pack mounting section and / or the second battery pack mounted in the second battery pack mounting section, A first switching unit that switches between connecting or disconnecting the first battery pack mounted on the first battery pack mounting section and the load section, A second switching unit that switches between connecting or disconnecting the second battery pack mounted on the second battery pack mounting section and the load section, An electrical device body having a load unit, a first switching unit and a control unit for controlling the second switching unit, A battery pack equipped with a first wireless communication unit is mounted as the first battery pack in the first battery pack mounting section, and a battery pack equipped with a second wireless communication unit is mounted as the second battery pack in the second battery pack mounting section, and when the control unit establishes a first wireless communication with an external device via the first wireless communication unit, the control unit is configured to establish a second wireless communication with the external device via the second wireless communication unit when it detects that the voltage of the first battery pack has dropped to a connection switching threshold and / or that the first wireless communication has been interrupted. An electrical appliance body characterized by the following features.

12. A battery pack mounting section capable of mounting a battery pack having battery cells and a wireless communication unit, A load unit that converts the power supplied from the battery pack, which is mounted on the battery pack mounting section, into heat, light, sound, or power, The main unit includes a wireless communication unit configured to enable wireless communication with a mobile device, An electrical device body having the load unit and a control unit that controls the main unit wireless communication unit, When the battery pack is installed in the battery pack mounting section, the control unit is configured to enable first wireless communication with the mobile terminal via the wireless communication unit of the battery pack, and second wireless communication with the mobile terminal via the main unit wireless communication unit of the electrical device body. An electrical appliance body characterized by the following features.

13. The main body of the electrical equipment according to claim 12, The control unit is configured such that, when the first wireless communication is interrupted after the first wireless communication and the second wireless communication have been established, the second wireless communication is maintained, and / or The control unit is configured such that when the first wireless communication is interrupted while the first wireless communication is established but the second wireless communication is not, the second wireless communication is established. An electrical appliance body characterized by the following features.

14. An electrical appliance body according to any one of claims 1, 2, 5, 9, 11, or 12, It includes a charging unit for charging the aforementioned battery pack, In both cases, when the battery pack is supplying power to the load unit and when the battery pack is being charged by the charging unit, the control unit is configured to be able to communicate wirelessly with an external device via the wireless communication unit of the battery pack. An electrical appliance body characterized by the following features.