Electrical Equipment

Abstract

To provide an electric device that is more convenient and easier to maintain. [Solution] The device comprises a storage section in which an opening is formed and a storage space continuous with the opening is defined inside, an opening / closing section that can open and close the opening, a battery connection section that can be connected to a battery pack, an output section that operates using power from the battery pack, and a control section that controls the power supplied to the output section.

Description

[Technical field]

[0001] The present invention relates to electrical equipment. [Background technology]

[0002] Conventionally, portable electrical devices have been widely used that have a housing capable of storing food, drink, etc., and can cool or heat the food, drink, etc. (contents) stored in the housing. For example, a cooler box with an internal battery built into the housing is known as such a portable electrical device (Patent Document 1). The cooler box described in Patent Document 1 is configured to be driven by the power of the external power source and cool the contents while charging the internal battery in places where an external power source is available, and to be driven by the power of the charged internal battery and cool the contents in places where an external power source is not available. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-138047 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned cooler box, when the internal battery is to be charged, the cooler box itself must be moved to a location where an external power source is available, which is inconvenient. Also, if the internal battery breaks down, the internal battery built into the case must be repaired or replaced, which makes maintenance difficult.

[0005] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide an electrical device that is both more convenient and easier to maintain. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides an electrical device comprising: a storage section in which an opening is formed and a storage space continuous with the opening is defined inside; an opening / closing section capable of opening and closing the opening; a battery connection section configured to be connectable to a battery pack; an output section that operates using power from the battery pack; and a control section that controls the power supplied to the output section.

[0007] According to this configuration, since the battery connector is configured to be connectable to the battery pack, even if the battery pack breaks down, power can be supplied to the output section by connecting another battery pack to the battery connector, which is more convenient and easier to maintain than a configuration using an internal battery.

[0008] In order to solve the above problems, the present invention further provides an electrical device comprising: a storage section in which an opening is formed and a storage space continuous with the opening is defined inside; an opening / closing section capable of opening and closing the opening; temperature change means for changing the temperature within the storage space by supplying power; a battery connection section configured to be connectable to a battery pack; a power supply section configured to supply power from the battery pack to the temperature change means; and a control section for controlling the power supplied from the power supply section to the temperature change means.

[0009] According to this configuration, since the battery connector is configured to be connectable to the battery pack, even if the battery pack breaks down, power can be supplied to the temperature changing means by connecting another battery pack to the battery connector, which makes it more convenient and easier to maintain than a configuration using an internal battery.

[0010] In the above configuration, the battery connection portion is preferably provided on the opening / closing portion.

[0011] According to this configuration, since the battery connection part is provided in the opening / closing part, the interior of the storage space can be made larger than in a configuration in which the battery connection part is provided in the storage part. Furthermore, when the opening is closed by the opening / closing part with the battery pack connected to the battery connection part, the weight of the battery pack can increase the airtightness of the storage space. In particular, since the battery pack is heavy compared to a single dry cell, the battery pack is effective in increasing the airtightness. Furthermore, the battery pack can be easily attached and detached. Furthermore, when the storage part is tilted to discard water or the like accumulated in the storage space through the opening, even if the water flows down the wall of the storage part, water can be prevented from entering the battery connection part.

[0012] In the above configuration, it is preferable that the control unit is mounted on a control board, and the control board is provided in the opening / closing unit.

[0013] In this configuration, since the control board is provided in the opening / closing section, the storage space can be made larger than in a configuration in which the control board is provided in the storage section. In addition, when the storage section is tilted to discard water or the like that has accumulated in the storage space through the opening, even if the water flows down the wall of the storage section, it is possible to prevent the water from entering the control board.

[0014] It is also preferable that the opening / closing portion has a battery accommodating portion capable of accommodating the battery pack in a state connected to the battery connection portion, and that the battery accommodating portion has a lid that covers the battery pack in a state connected to the battery connection portion in a closed state and exposes the battery pack in an open state.

[0015] According to this configuration, the battery pack connected to the battery connection part can be covered with the lid, which protects the battery pack connected to the battery connection part from shocks, rainwater, and the like, thereby preventing breakdowns of the battery pack.

[0016] Furthermore, it is preferable that the accommodating section has a peripheral wall section extending in a first direction and having one end in the first direction that defines the opening, and a bottom wall section that closes the other end in the first direction of the peripheral wall section, and that the opening / closing section further has a board accommodating section that accommodates the control board, and that when the opening / closing section is closing the opening, the separation distance between the floor of the board accommodating section and the bottom wall section in the first direction is longer than the separation distance between the floor of the battery accommodating section and the bottom wall section.

[0017] According to this configuration, when the electrical device is placed on the ground with the bottom wall portion facing down, the floor of the board accommodating portion that accommodates the control board is at a higher position than the floor of the battery accommodating portion. Therefore, when the opening / closing portion is closing the opening of the accommodating portion, the space between the floor of the board accommodating portion and the bottom wall portion can be made wider. Furthermore, when the battery accommodating portion and the board accommodating portion are configured to communicate with each other, even if rainwater or the like enters the battery accommodating portion, the rainwater can be prevented from flowing into the board accommodating portion, and the control board can be protected.

[0018] Moreover, it is preferable that the battery connection portion is configured to be connected to the battery pack by moving the battery pack toward the battery connection portion in one of the first directions.

[0019] With this configuration, the battery pack can be easily connected to the battery connector.

[0020] Moreover, it is preferable that the battery connection portion is configured to be connected to the battery pack by moving the battery pack toward the battery connection portion in one of second directions intersecting the first direction.

[0021] It is also preferable that a plurality of the battery connectors are provided.

[0022] With this configuration, it is possible to increase the amount of power that can be supplied to the temperature changing means.

[0023] It is also preferable that the temperature changing device further comprises a power supply connection section connectable to an external power supply, the power supply section being configured to be able to supply power from the external power supply to the temperature changing means.

[0024] According to such a configuration, even if the battery pack has no remaining charge, power can be supplied to the temperature changing means, thereby improving convenience.

[0025] It is also preferable that the battery storage device further includes a temperature detection means for detecting the temperature within the storage space, and the control unit controls the power supplied to the temperature change means based on at least one of the connection state between the battery connection unit and the battery pack, the connection state between the power supply connection unit and the external power supply, and the temperature within the storage space.

[0026] With this configuration, the control unit controls the power supplied to the temperature change means based on the connection state between the battery connection part and the battery pack, the connection state between the power connection part and the external power source, and the temperature within the storage space, so that appropriate power can be supplied to the temperature change means.

[0027] The battery pack is preferably a battery pack for a power tool.

[0028] With this configuration, it is possible to supply more power to the temperature changing means compared to when a dry battery is used. Also, when working with an electric tool, the battery pack can be used. Furthermore, if the battery pack is attached to the opening / closing part, since it is heavier than a dry battery, when the opening is closed by the opening / closing part with the battery pack connected to the battery connection part, the weight of the battery pack can further increase the airtightness of the storage space when the opening is closed by the opening / closing part.

[0029] It is also preferable that the control unit is mounted on a control board, and that the control board is provided on a side surface or a bottom surface of the storage unit.

[0030] With this configuration, the opening / closing part can be made lighter, making it easier to open and close the opening / closing part.

[0031] The battery connection portion is preferably provided on the bottom surface of the housing portion.

[0032] With this configuration, the opening / closing part can be made lighter, making it easier to open and close, and the electrical device can be placed thereon stably.

[0033] It is also preferable that a pair of casters are provided at the ends of the bottom surface of the housing, and the battery connection portion is provided on the bottom surface of the housing portion at a portion other than the ends.

[0034] With this configuration, the casters make it easy to move the electrical device. Furthermore, when tilting the storage unit around the casters to dump water or the like that has accumulated in the storage space through the opening, even if the water runs down the wall of the storage unit, the battery connection part is located on the opposite side to the casters, so water is prevented from entering the battery connection part. In order to solve the above problems, the present invention further provides an electrical device comprising: a storage section having a storage space for storing an object to be heated or cooled; an opening / closing section for opening and closing an opening formed in an upper part of the storage section; a battery connection section configured to be connectable to a power tool battery pack; a Peltier element operated by power from the power tool battery pack; and a control section for controlling the power supplied to the Peltier element, wherein the battery connection section has a connection terminal section for connecting to the power tool battery pack and a guide section for guiding the power tool battery pack to the connection terminal section, the battery connection section and the Peltier element are provided in the opening / closing section such that the Peltier element and the power tool battery pack connected to the battery connection section do not overlap each other when the electrical device is viewed from above and the Peltier element is not exposed to the outside when the opening / closing section is closed, a pair of casters are provided at an end of a bottom of the storage section, and a handle that can be held by a user is provided on a side surface of the storage section opposite the side on which the pair of casters are provided. In the above configuration, it is preferable that the guide portion is a guide rail that guides the sliding connection of the battery pack for the electric power tool to the connection terminal portion. In the above configuration, it is preferable that the battery storage section has a battery storage section capable of storing the power tool battery pack when connected to the battery connection section, and that the battery storage section has a lid that covers the power tool battery pack when connected to the battery connection section in a closed state and exposes the power tool battery pack in an open state. In order to solve the above problems, the present invention further provides a battery pack for a power tool, comprising: a storage section having a storage space for storing an object to be heated or cooled; an opening / closing section for opening and closing an opening formed in an upper portion of the storage section; a battery connection section configured to be connectable to a power tool battery pack; a Peltier element operated by power from the power tool battery pack; and a control section for controlling power supplied to the Peltier element, wherein the battery connection section has a connection terminal section for connecting to the power tool battery pack and a guide section for guiding the power tool battery pack to the connection terminal section, the control section being mounted on a control board provided in the opening / closing section, and the opening / closing section being configured to be capable of storing the power tool battery pack in a state where it is connected to the battery connection section. The present invention provides an electrical device having a battery accommodating section, the accommodating section having a peripheral wall portion extending in a first direction and having one end in the first direction that defines the opening, and a bottom wall portion that closes the other end in the first direction of the peripheral wall portion, the opening / closing section further having a board accommodating section that accommodates the control board, and when the opening / closing section is closing the opening, the distance between a floor of the board accommodating section and the bottom wall portion in the first direction is longer than the distance between a floor of the battery accommodating section and the bottom wall portion, a pair of casters are provided at an end of the bottom of the accommodating section, and a handle that can be held by a user is provided on a side of the accommodating section opposite the side on which the pair of casters are provided. In order to solve the above problems, the present invention further provides a storage section having a storage space for storing an object to be heated or cooled, an opening / closing section for opening and closing an opening formed in an upper portion of the storage section, a battery connection section configured to be connectable to a battery pack for a power tool, a Peltier element operated by power from the battery pack for the power tool, and a control section for controlling power supplied to the Peltier element, wherein the storage section includes a peripheral wall section extending in a first direction which is a vertical direction and one end of the peripheral wall section in the first direction defines the opening, and a control section for closing the other end of the peripheral wall section in the first direction. the opening / closing part has a first floor part and a second floor part having a predetermined thickness in the first direction, and when the opening / closing part is closing the opening, the distance between the underside of the first floor part and the upper surface of the bottom wall part is longer than the distance between the underside of the second floor part and the upper surface of the bottom wall part, a pair of casters is provided at an end of the bottom of the storage part, and a handle that can be held by a user is provided on a side of the storage part opposite to the side on which the pair of casters are provided. In the above configuration, it is preferable that the battery connection portion is configured to be connected to the battery pack for the power tool by moving the battery pack for the power tool toward the battery connection portion in one of the first directions, or by moving the battery pack for the power tool in one of the second directions intersecting the first direction. In the above configuration, it is preferable that a plurality of the battery connection parts are provided. In the above configuration, it is preferable that the power tool further includes a power connection unit that can be connected to an external power source, and a power supply unit that is configured to be able to supply power from the power tool battery pack to the Peltier element, and that the power supply unit is configured to be able to supply power from the external power source to the Peltier element. In the above configuration, it is preferable that the device further includes a temperature detection means for detecting a temperature within the storage space, and the control unit controls the power supplied to the Peltier element based on at least one of a connection state between the battery connection unit and the power tool battery pack, a connection state between the power supply connection unit and the external power supply, and the temperature within the storage space. In the above configuration, it is preferable that the control unit is mounted on a control board, and the control board is provided on any one of the opening / closing unit, a side portion of the storage unit, or a bottom portion of the storage unit. In the above configuration, it is preferable that the battery connection portion is provided on the opening / closing portion or on a bottom portion of the housing portion. In the above configuration, it is preferable that a pair of casters are provided at the end of the bottom of the storage section, and a handle that can be held by a user is provided on a side of the storage section opposite the side on which the pair of casters are provided. In the above configuration, it is preferable that the device has an operation display unit that switches the operating state of the Peltier element, and the operation display unit has a hot / cold changeover switch that switches the operating state among a cooling mode, a heating mode, and a hot / cold off mode. In the above configuration, it is preferable that the operation display section has an output changeover switch for changing the cooling mode output or the heating mode output among a high mode, a normal mode, and a low mode. In the above configuration, it is preferable that the opening / closing section includes a first fan section provided below the Peltier element in the vertical direction, a second fan section provided above the Peltier element in the vertical direction, and a heat exchange section provided between the first fan section and the second fan section in the vertical direction, the heat exchange section having the Peltier element and a thermally conductive member abutting the Peltier element in the vertical direction, the first fan section having a first fan and a first fin section provided below the thermally conductive member facing the thermally conductive member in the vertical direction, and the second fan section having a second fan and a second fin section provided between the second fan and the Peltier element in the vertical direction. In the aforementioned configuration, it is preferable that the second fan, the second fin portion, the Peltier element, the heat conduction member, and the first fin portion are arranged side by side in the vertical direction. In order to solve the above problems, the present invention further provides an electrical device comprising a storage section having a storage space for storing an object to be heated or cooled, an opening / closing section for opening and closing an opening formed at the top of the storage section, a battery connection section configured to be connectable to a battery pack for a power tool, a Peltier element that operates using power from the battery pack for a power tool, and a control section for controlling the power supplied to the Peltier element, wherein a pair of casters are provided at the end of the bottom of the storage section, and a handle that can be held by a user is provided on a side of the storage section opposite the side on which the pair of casters are provided. In order to solve the above problems, the present invention further provides an electrical device comprising: a storage section having a storage space for storing an object to be heated or cooled; an opening / closing section for opening and closing an opening formed at the top of the storage section via a pivot shaft extending in the left-right direction; a battery connection section configured to be connectable to a battery pack; a battery storage section capable of storing the battery pack in a state connected to the battery connection section; a lid for opening and closing the battery storage section via a pivot shaft extending in the left-right direction; a heat exchange section operated by power from the battery pack; and a control section for controlling the heat exchange section, wherein the electrical device is characterized in that a pair of casters are provided on one end side in the left-right direction of the bottom of the storage section, and a handle that can be held by a user is provided on the side of the other end side in the left-right direction of the storage section. In the above configuration, it is preferable that the battery connection portion is connectable to a battery pack for an electric power tool as the battery pack. In the above configuration, it is preferable that a plurality of the battery connection parts are provided. In the above configuration, it is preferable that the battery connection portion has a connection terminal portion that is connected to the terminal of the battery pack, and a pair of guiding portions that guide the sliding connection of the battery pack to the connection terminal portion, and that the connection terminal portion and the battery pack are connected by sliding the battery pack downward from above toward the connection terminal portion along the pair of guiding portions. In the above configuration, it is preferable that the battery pack further includes a power supply connection section that can be connected to an external power supply, and the heat exchange section is configured to be able to receive power from the battery pack or the external power supply. In the aforementioned configuration, it is preferable that the battery connection portion is provided on the one side in the left-right direction. In the above configuration, it is preferable that the rotation axis of the pair of casters and the rotation axis of the opening / closing part intersect. In the above configuration, it is preferable that the battery connection portion is disposed on a side of the accommodation space. In the above configuration, it is preferable that the heat exchange portion is disposed on a side of the accommodation space. In the above configuration, it is preferable that the handle is configured to be rotatable with respect to the storage portion. The present invention further provides an electrical device comprising: a storage section that forms a storage space; a heat exchange section that changes the temperature of the storage space; a battery connection section to which a battery pack can be attached and detached; a charging circuit that charges the battery pack connected to the battery connection section; a first power supply circuit that supplies power from the battery pack to the heat exchange section; and a power supply connection section connected to the charging circuit and to which an on-board battery can be connected, wherein the charging circuit is configured to boost the voltage of the on-board battery and supply the boosted voltage to the battery pack, and the first power supply circuit is configured to reduce the voltage of the battery pack and apply it to the heat exchange section. In the above configuration, it is preferable that the first power supply circuit is configured to be capable of supplying power from the in-vehicle battery to the heat exchange unit, and the driving voltage of the heat exchange unit is a voltage that operates without increasing or decreasing the voltage of the in-vehicle battery. In the above configuration, the first power supply circuit is preferably configured to supply power from the vehicle battery to the heat exchanger. In the above configuration, it is preferable that the electrical device is configured to include a battery accommodating portion capable of accommodating the battery pack in a state where it is connected to the battery connecting portion. The present invention further provides an electrical device comprising: a storage section that forms a storage space; a heat exchange section that changes the temperature of the storage space; a battery connection section that allows a battery pack to be attached and detached by sliding from top to bottom; a battery storage section that can store the battery pack in a state connected to the battery connection section; a lid that is formed on the top of the battery storage section and opens and closes the battery storage section via a pivot shaft extending in the left-right direction; a charging circuit that charges the battery pack connected to the battery connection section; a first power supply circuit that supplies power from the battery pack to the heat exchange section; and a power supply connection section that is connected to the charging circuit and can be connected to an on-board battery, wherein the charging circuit is configured to boost the voltage of the on-board battery and supply the boosted voltage to the battery pack. In the above configuration, it is preferable that the charging circuit is configured to be able to receive power from a commercial power source, and the heat exchanger is configured to operate on power from any one of the battery pack, the commercial power source, or the vehicle battery. In the above configuration, it is preferable that the charging circuit is configured to charge the battery pack with power from either the vehicle battery or the commercial power source when the battery pack is connected to the battery connection portion. In the above configuration, it is preferable that the battery includes a control unit that controls the charging circuit and the first power supply circuit, and the control unit is configured to control the charging circuit and the first power supply circuit to change the state of at least one of the power supplied to the heat exchange unit and the power supplied to the battery pack depending on the state of the battery pack, the vehicle battery, or the commercial power supply. In the above configuration, it is preferable that the electrical device is capable of connecting to the vehicle battery and the commercial power supply as external power supplies, and the control unit is configured to control the charging circuit and the first power supply circuit to change the state of at least one of the power supplied to the heat exchange unit and the power supplied to the battery pack depending on whether the battery pack is connected or not, whether the vehicle battery is connected or not, or whether the commercial power supply is connected or not. In the above configuration, when the external power source is connected and the battery pack is connected, it is preferable that the control unit is configured to control the charging circuit and the first power supply circuit to change the power supplied to the heat exchange unit and the power supplied to the battery pack depending on the remaining charge of the battery pack connected to the battery connection unit. In the above configuration, when the connected battery pack is not fully charged, it is preferable that the power supplied from the first power supply circuit to the heat exchanger is greater than the power supplied from the charging circuit to the battery pack. In the above configuration, when the external power source is not connected and the battery pack is connected, it is preferable that the first power supply circuit is configured to change the power supplied to the heat exchange unit depending on the temperature of the storage space. In the above configuration, it is preferable that the first power supply circuit is configured to be switchable between a plurality of modes in which the power supplied to the heat exchanger is different. In the above configuration, when the external power source is connected and the battery pack is not connected or the battery pack is fully charged, it is preferable that the first power supply circuit is configured to supply the same power to the heat exchange unit regardless of the multiple modes. In the above configuration, it is preferable that the battery is configured to include a fan that dissipates heat from the heat exchange portion and a through hole that communicates between the fan and outside air, and the battery connection portion is configured to be disposed above the fan. In the above configuration, it is preferable that a fan housing chamber that houses the fan and the battery housing section are not in communication with each other. In the above configuration, it is preferable that the battery connection portion is configured to be able to connect battery packs of different voltages, and the charging circuit is configured to charge the battery pack by boosting the voltage from an in-vehicle battery to a voltage appropriate for charging the battery pack connected to the battery connection portion. In the above configuration, it is preferable that the battery connector is configured to be connectable to a battery pack connectable to an electric power tool. The present invention further provides an electrical device comprising: a storage section that forms a storage space; a heat exchange section that changes the temperature of the storage space; a battery connection section that allows a battery pack to be attached and detached by sliding from top to bottom; a battery storage section that can accommodate the battery pack in a state connected to the battery connection section; a lid that is formed on the top of the battery storage section and opens and closes the battery storage section via a pivot shaft that extends in the left-right direction; and a first power supply circuit that supplies power from the battery pack to the heat exchange section. In order to achieve the above object, the present invention further provides a battery pack including an accommodation section that forms an accommodation space, a heat exchange section that changes the temperature of the accommodation space, a battery connection section to which a battery pack can be detached, the battery connection section having a terminal connection section consisting of a plurality of terminals that can be connected to a plurality of terminals of the battery pack, a charging circuit that charges the battery pack that is connected to the battery connection section, a first power supply circuit that supplies power from the battery pack to the heat exchange section, an external power supply connection section that is connected to the charging circuit and to which an external vehicle battery can be connected, and a control circuit that controls the charging circuit and the first power supply circuit. a charging circuit provided in the accommodation portion, one end of which is connected to the terminal connection portion and the other end of which is connected to the external power supply connection portion, and configured to boost a voltage of the vehicle-mounted battery connected to the external power supply connection portion and supply the boosted voltage to the battery pack via the terminal connection portion, the charging circuit configured to be able to supply power from a commercial power supply, the heat exchange portion configured to operate using power from any one of the battery pack, the commercial power supply, and the vehicle-mounted battery, and the first power supply circuit the first power supply circuit is connected to the terminal connection portion, the external power supply connection portion, and the heat exchange portion, and is configured to supply power of the battery pack to the heat exchange portion via the terminal connection portion when the battery pack is connected to the terminal connection portion, and to supply power of the vehicle battery to the heat exchange portion via the external power supply connection portion when the battery pack is not connected to the terminal connection portion and the vehicle battery is connected to the external power supply connection portion; the control unit is connected to the battery connection portion, the external power supply connection portion, the charging circuit, and the first power supply circuit, and is connected to the battery pack via the battery connection portion when the battery pack is connected to the battery connection portion, and is configured to control charging of the battery pack by the charging circuit; the control unit is configured to control the charging circuit and the first power supply circuit to change at least one of the state of power supplied to the heat exchange portion and the state of power supplied to the battery pack depending on the state of any one of the battery pack, the vehicle battery, and the commercial power supply;The electric device is configured to supply power to the first power supply circuit without supplying power to the charging circuit when the on-board battery is connected to the external power supply connection section and the battery pack is not connected to the terminal connection section, supply power to the first power supply circuit without supplying power to the charging circuit when the on-board battery is connected to the external power supply connection section and the battery pack is connected to the terminal connection section and the battery pack is in a fully charged state, and supply power to the first power supply circuit without supplying power to the charging circuit when the on-board battery is connected to the external power supply connection section and the battery pack is connected to the terminal connection section and the battery pack needs to be charged. In order to solve the above problems, the present invention further provides a battery pack for an electric power tool, the battery pack comprising: a storage section that forms a storage space; a heat exchange section that changes the temperature of the storage space; a battery connection section that can be slid from top to bottom to attach and detach a battery pack for an electric power tool, the battery connection section having a terminal connection section made up of a plurality of terminals that can be connected to a positive terminal, a negative terminal and a temperature signal output terminal of the battery pack; a battery storage section that can accommodate the battery pack in a state that it is connected to the battery connection section; a lid that is formed on an upper portion of the battery storage section and that opens and closes the battery storage section via a pivot shaft that extends in the left-right direction; a charging circuit for charging the battery pack connected to the heat exchange unit, a first power supply circuit for supplying power from the battery pack to the heat exchange unit, an external power supply connection unit connected to the charging circuit and capable of connecting an external vehicle battery, and a control unit for controlling the charging circuit and the first power supply circuit, wherein the charging circuit is provided in the storage unit, one end is connected to the terminal connection unit and the other end is connected to the external power supply connection unit, and the charging circuit boosts a voltage of the vehicle battery connected to the external power supply connection unit and supplies the boosted voltage to the terminal connection unit. the charging circuit is configured to be able to supply power from a commercial power source, the heat exchange unit is configured to operate on power from any one of the battery pack, the commercial power source, or the vehicle-mounted battery, the first power supply circuit is connected to the battery connection unit, the external power supply connection unit, and the heat exchange unit, and when the battery pack is attached to the battery connection unit, the first power supply circuit supplies power from the battery pack to the heat exchange unit via the battery connection unit, and when the battery pack is not attached to the battery connection unit and the vehicle-mounted battery is connected to the external power supply connection unit and supplying power from the vehicle battery to the heat exchanger via the external power supply connection unit, the control unit is connected to the battery connection unit, the external power supply connection unit, the charging circuit, and the first power supply circuit, and is connected to the temperature signal output terminal of the battery pack via the battery connection unit when the battery pack is connected to the battery connection unit, and is configured to monitor the temperature of the battery pack and control charging of the battery pack by the charging circuit, and the control unit controls the charging of the battery pack by the charging circuit according to a state of the battery pack, the vehicle battery, or the commercial power supply,The control unit is configured to control the charging circuit and the first power supply circuit to change the state of at least one of the power supplied to the heat exchange unit and the power supplied to the battery pack, and the control unit is configured to supply power to the first power supply circuit without supplying power to the charging circuit when the vehicle-mounted battery is connected to the external power supply connection unit and the battery pack is not connected to the terminal connection unit, to supply power to the first power supply circuit without supplying power to the charging circuit when the vehicle-mounted battery is connected to the external power supply connection unit and the battery pack is connected to the terminal connection unit and the battery pack is in a fully charged state, and to supply power to the charging circuit and the first power supply circuit when the vehicle-mounted battery is connected to the external power supply connection unit and the battery pack is connected to the terminal connection unit and the battery pack needs to be charged. In order to achieve the above object, the present invention further provides a battery pack including an accommodation section that forms an accommodation space, a heat exchange section that changes the temperature of the accommodation space, a battery connection section to which a battery pack can be detached, the battery connection section having a terminal connection section consisting of a plurality of terminals that can be connected to a plurality of terminals of the battery pack, a charging circuit that charges the battery pack that is connected to the battery connection section, a first power supply circuit that supplies power from the battery pack to the heat exchange section, an external power supply connection section that is connected to the charging circuit and to which an external vehicle battery can be connected, and a control circuit that controls the charging circuit and the first power supply circuit. a charging circuit provided in the accommodation portion, one end of which is connected to the terminal connection portion and the other end of which is connected to the external power supply connection portion, and configured to boost a voltage of the vehicle-mounted battery connected to the external power supply connection portion and supply the boosted voltage to the battery pack via the terminal connection portion, the charging circuit configured to be able to supply power from a commercial power supply, the heat exchange portion configured to operate using power from any one of the battery pack, the commercial power supply, and the vehicle-mounted battery, and the first power supply circuit the first power supply circuit is connected to the terminal connection portion, the external power supply connection portion, and the heat exchange portion, and is configured to supply power of the battery pack to the heat exchange portion via the terminal connection portion when the battery pack is connected to the terminal connection portion, and to supply power of the vehicle battery to the heat exchange portion via the external power supply connection portion when the battery pack is not connected to the terminal connection portion and the vehicle battery is connected to the external power supply connection portion; the control unit is connected to the battery connection portion, the external power supply connection portion, the charging circuit, and the first power supply circuit, and is connected to the battery pack via the battery connection portion when the battery pack is connected to the battery connection portion, and is configured to control charging of the battery pack by the charging circuit; the control unit is configured to control the charging circuit and the first power supply circuit to change at least one of the state of power supplied to the heat exchange portion and the state of power supplied to the battery pack depending on the state of any one of the battery pack, the vehicle battery, and the commercial power supply;The electric device is configured to supply power to the first power supply circuit without supplying power to the charging circuit when the on-board battery is connected to the external power supply connection section and the battery pack is not connected to the terminal connection section, supply power to the first power supply circuit without supplying power to the charging circuit when the on-board battery is connected to the external power supply connection section and the battery pack is connected to the terminal connection section and the battery pack is in a fully charged state, and supply power to the first power supply circuit without supplying power to the charging circuit when the on-board battery is connected to the external power supply connection section and the battery pack is connected to the terminal connection section and the battery pack needs to be charged. In the above configuration, it is preferable that the first power supply circuit is configured to be able to supply power from the vehicle battery to the heat exchange unit, and the driving voltage of the heat exchange unit is a voltage that operates without increasing or decreasing the voltage of the vehicle battery. In the above configuration, the first power supply circuit is preferably configured to supply power from the vehicle battery to the heat exchanger. In the above configuration, it is preferable to further include a battery housing portion capable of housing the battery pack in a state where it is connected to the battery connection portion. In order to achieve the above object, the present invention further provides a storage section that forms a storage space, a heat exchange section that changes the temperature of the storage space, a battery connection section to which a battery pack can be attached and detached, the battery connection section having a terminal connection section consisting of a plurality of terminals that can be connected to a positive terminal, a negative terminal, and a temperature signal output terminal of the battery pack, a battery storage section that can accommodate the battery pack in a state that it is connected to the battery connection section, a charging circuit that charges the battery pack connected to the battery connection section, a first power supply circuit that supplies power from the battery pack to the heat exchange section, and an external vehicle power supply circuit that is connected to the charging circuit. an external power supply connection section to which an on-board battery can be connected, and a control section for controlling the charging circuit and the first power supply circuit, the charging circuit being provided in the accommodation section, one end being connected to the terminal connection section and the other end being connected to the external power supply connection section, and configured to boost a voltage of the on-board battery connected to the external power supply connection section and supply the boosted voltage to the battery pack via the terminal connection section, the charging circuit being configured to be able to supply power from a commercial power supply, and the heat exchange section being configured to exchange power between the battery pack, the commercial power supply, the the first power supply circuit is connected to the battery connection portion, the external power supply connection portion, and the heat exchange portion, and is configured to supply power of the battery pack to the heat exchange portion via the battery connection portion when the battery pack is attached to the battery connection portion, and to supply power of the vehicle battery to the heat exchange portion via the external power supply connection portion when the battery pack is not attached to the battery connection portion and the vehicle battery is connected to the external power supply connection portion, and the control unit is configured to control the battery connection portion, the external power supply connection portion, the charging circuit, and a charging circuit that is connected to the first power supply circuit and is connected to the temperature signal output terminal of the battery pack via the battery connection portion when the battery pack is connected to the battery connection portion, and is configured to monitor the temperature of the battery pack and control charging of the battery pack by the charging circuit, and the control unit is configured to control the charging circuit and the first power supply circuit to change at least one of the state of the power supplied to the heat exchange unit and the state of the power supplied to the battery pack according to the state of the battery pack, the vehicle battery, or the commercial power supply, and the control unit is configured toThe electric device is configured to supply power to the first power supply circuit without supplying power to the charging circuit when the on-board battery is connected to the external power supply connection section and the battery pack is not connected to the terminal connection section, supply power to the first power supply circuit without supplying power to the charging circuit when the on-board battery is connected to the external power supply connection section and the battery pack is connected to the terminal connection section and the battery pack is in a fully charged state, and supply power to the charging circuit and the first power supply circuit when the on-board battery is connected to the external power supply connection section and the battery pack is connected to the terminal connection section and the battery pack needs to be charged. In the above configuration, it is preferable that the charging circuit is configured to charge the battery pack with power from either the vehicle battery or the commercial power source when the battery pack is connected to the battery connection portion. In the above configuration, it is preferable that the electrical device is capable of connecting to the vehicle battery and the commercial power supply as external power supplies, and the control unit is configured to control the charging circuit and the first power supply circuit to change the state of at least one of the power supplied to the heat exchange unit and the power supplied to the battery pack depending on whether the battery pack is connected or not, whether the vehicle battery is connected or not, or whether the commercial power supply is connected or not. In the above configuration, when the external power source is connected and the battery pack is connected, it is preferable that the control unit is configured to control the charging circuit and the first power supply circuit to change the power supplied to the heat exchange unit and the power supplied to the battery pack depending on the remaining charge of the battery pack connected to the battery connection unit. In the above configuration, when the connected battery pack is not fully charged, it is preferable that the power supplied from the first power supply circuit to the heat exchanger is greater than the power supplied from the charging circuit to the battery pack. In the above configuration, when the external power source is not connected and the battery pack is connected, it is preferable that the first power supply circuit is configured to change the power supplied to the heat exchange unit depending on the temperature of the storage space. In the aforementioned configuration, it is preferable that the first power supply circuit is configured to be switchable between a plurality of modes in which the power supplied to the heat exchanger is different. In the above configuration, when the external power source is connected and the battery pack is not connected or the battery pack is fully charged, it is preferable that the first power supply circuit is configured to supply the same power to the heat exchange unit regardless of the multiple modes. In the above configuration, it is preferable to include a fan that dissipates heat from the heat exchange portion, and a through hole that communicates between the fan and outside air. In the above configuration, it is preferable that a fan housing chamber that houses the fan does not communicate with the battery housing portion. In the above configuration, it is preferable that the battery connection portion is configured to be able to connect battery packs of different voltages, and that the charging circuit charges the battery pack by boosting the voltage from the vehicle battery to a voltage appropriate for charging the battery pack connected to the battery connection portion. In order to solve the above problems, the present invention further includes a storage portion that forms a storage space; The present invention provides an electrical device configured as a portable temperature regulating container comprising: a heat exchange unit that changes the temperature of the storage space; a battery connection unit to which a battery pack can be detached, the battery connection unit having a terminal connection unit consisting of a plurality of terminals that can be connected to a plurality of terminals of the battery pack; a charging circuit that charges the battery pack connected to the battery connection unit; a first power supply circuit that supplies power from the battery pack to the heat exchange unit; an external power supply connection unit connected to the charging circuit and to which an external vehicle battery can be connected; and a control unit that controls the charging circuit and the first power supply circuit, wherein the charging circuit is provided in the storage unit, has one end connected to the terminal connection unit and the other end connected to the external power supply connection unit, and is configured to boost the voltage of the vehicle battery connected to the external power supply connection unit and supply the boosted voltage to the battery pack via the terminal connection unit. In the above configuration, it is preferable that the first power supply circuit is connected to the terminal connection portion, the external power supply connection portion, and the heat exchange portion, and is configured to supply the power of the battery pack to the heat exchange portion via the terminal connection portion when the battery pack is connected to the terminal connection portion, and to supply the power of the vehicle battery to the heat exchange portion via the external power supply connection portion when the battery pack is not connected to the terminal connection portion and the vehicle battery is connected to the external power supply connection portion. In the above configuration, it is preferable that the control unit is configured to supply power to the first power supply circuit without supplying power to the charging circuit when the vehicle battery is connected to the external power supply connection portion and the battery pack is not connected to the terminal connection portion, to supply power to the first power supply circuit without supplying power to the charging circuit when the vehicle battery is connected to the external power supply connection portion and the battery pack is connected to the terminal connection portion and the battery pack is in a fully charged state, and to supply power to the charging circuit and the first power supply circuit when the vehicle battery is connected to the external power supply connection portion and the battery pack is connected to the terminal connection portion and the battery pack needs to be charged. Effect of the Invention

[0035] According to the electrical device of the present invention, it is possible to improve convenience and facilitate maintenance. [Brief description of the drawings]

[0036] [Figure 1] 1 is a perspective view showing the appearance of a temperature regulating container according to a first embodiment of the present invention. [Diagram 2] 1 is a plan view showing the appearance of a temperature regulating container according to a first embodiment of the present invention, showing a state in which a battery pack is connected to a battery connection portion. [Diagram 3] 3 is a partial cross-sectional view taken along line III-III in FIG. 2, showing the inside of a temperature regulating container according to the first embodiment of the present invention. [Figure 4] 4 is a partial cross-sectional view taken along line IV-IV in FIG. 2, showing the inside of the temperature regulating container according to the first embodiment of the present invention. [Diagram 5] 3 is a partial cross-sectional view taken along line VV of FIG. 2, showing the inside of the temperature regulating container according to the first embodiment of the present invention. FIG. [Figure 6] 1 is a cross-sectional plan view showing the inside of an opening / closing lid of a temperature regulating container according to a first embodiment of the present invention. [Figure 7] 1 is a perspective view showing the appearance of a temperature regulating container according to a first embodiment of the present invention, showing a state in which a battery lid is in an open position. [Figure 8] 3 is a partial cross-sectional view taken along line III-III in FIG. 2, showing the inside of the temperature regulating container according to the first embodiment of the present invention, with the battery lid in an open position. FIG. [Figure 9] FIG. 2 is a diagram showing an operation and display section of the temperature regulating container according to the first embodiment of the present invention. [Figure 10] 1 is a circuit diagram including a block diagram showing the electrical configuration of a temperature regulating container according to a first embodiment of the present invention, showing a state in which the container is connected to a battery pack P. [Figure 11] 1 is a table showing the Peltier supply power according to the presence or absence of external power input, the presence or absence of a battery connection, the remaining battery power, and the temperature of the storage space in each of the high mode, normal mode, and low mode of a temperature regulating container according to the first embodiment of the present invention. [Figure 12]FIG. 11 is a plan view showing the appearance of a temperature regulating container according to a second embodiment of the present invention, showing a state in which a battery pack is connected to a battery connection portion. [Figure 13] 13 is a partial cross-sectional view taken along line XIII-XIII in FIG. 12, showing the inside of a temperature regulating container according to a second embodiment of the present invention, with the battery lid in a closed position. FIG. [Figure 14] 13 is a partial cross-sectional view taken along line XIII-XIII in FIG. 12, showing the inside of a temperature regulating container according to a second embodiment of the present invention, with the battery lid in an open position. FIG. [Figure 15] 11 is a partial cross-sectional plan view showing the inside of an opening / closing lid of a temperature regulating container according to a second embodiment of the present invention. FIG. [Figure 16] FIG. 11 is a partial cross-sectional plan view showing the inside of an opening / closing lid of a temperature regulating container according to a third embodiment of the present invention. [Figure 17] FIG. 11 is a partial cross-sectional plan view showing the inside of an opening / closing lid of a temperature regulating container according to a fourth embodiment of the present invention. [Figure 18] FIG. 13 is a partial cross-sectional plan view showing the inside of an opening / closing lid of a temperature regulating container according to a fifth embodiment of the present invention. [Figure 19] FIG. 13 is a partial cross-sectional front view showing the inside of a temperature regulating container according to a sixth embodiment of the present invention. [Figure 20] FIG. 13 is a front view, partially in section, showing the inside of a temperature regulating container according to a seventh embodiment of the present invention. [Figure 21] FIG. 13 is a partial cross-sectional front view showing the inside of a temperature regulating container according to an eighth embodiment of the present invention. [Figure 22] FIG. 13 is a partial cross-sectional front view showing the inside of a temperature regulating container according to a ninth embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, when a specific numerical value is mentioned, for example, when a length is mentioned as "20 mm", it includes not only a case where the numerical value is completely the same as the numerical value, but also a case where the numerical value is almost the same as the numerical value. In addition, when a positional relationship is mentioned, for example, when a positional relationship is mentioned as "parallel", "orthogonal", "opposite", etc., it includes not only a case where the positional relationship is completely parallel, orthogonal, or opposite, etc., but also a case where the positional relationship is almost parallel, almost orthogonal, or almost opposite, etc.

[0038] An embodiment of the present invention will be described with reference to FIGS. 1 to 22. FIG.

[0039] First, an electric device according to a first embodiment of the present invention will be described with reference to Fig. 1 to Fig. 11. Fig. 1 is a perspective view showing the appearance of a temperature regulating container 1. In the following description, "front" indicated by the arrows in the drawings is defined as the front direction, "rear" as the rear direction, "up" as the upward direction, "down" as the downward direction, "right" as the rightward direction, and "left" as the leftward direction.

[0040] The temperature adjustment container 1 shown in Fig. 1 is an electrical device configured to be capable of cooling and heating food, drink, etc. (hereinafter, contained items) contained therein, using either a battery pack P (Fig. 2) for an electric tool or an external power source other than the battery pack P as a power source. The temperature adjustment container 1 has three modes related to cooling and heating, i.e., hot and cold functions (cooling mode, heating mode, hot and cold off mode), and three modes related to the output of the hot and cold functions (high mode, normal mode, low mode). The temperature adjustment container 1 also has a charging function and is configured to be able to charge the battery pack P. Details of the above modes and charging function will be described later.

[0041] As shown in Figures 1 to 5, the temperature control container 1 includes an accommodation section 2, an opening / closing lid section 3, a heat exchange section 4, a first fan section 5, a battery connection section 6 configured to be connectable to a battery pack P, a second fan section 7, and a control board section 8.

[0042] Fig. 2 is a plan view showing the appearance of the temperature control container 1, showing a state in which a battery pack P is connected to the battery connection portion 6. Figs. 3 to 5 are views showing the inside of the temperature control container 1, with Fig. 3 being a partial cross-sectional view taken along line III-III in Fig. 2, Fig. 4 being a partial cross-sectional view taken along line IV-IV in Fig. 2, and Fig. 5 being a partial cross-sectional view taken along line VV in Fig. 2. Note that Fig. 4 shows the bottom surface of the battery pack P rather than a cross-section.

[0043] 1 to 5, the storage section 2 has a generally box-like shape with an opening 2a (FIGS. 3 to 5) formed at the upper end, and has a peripheral wall section 21 and a floor wall section 22 formed integrally with the peripheral wall section 21. In addition, as shown in FIG. 3 to FIG. 5, a storage space 2b that is continuous with the opening 2a is defined inside the storage section 2.

[0044] As shown in Figures 1 and 3 to 5, the peripheral wall portion 21 has a front wall portion 21A and a rear wall portion 21B which are generally rectangular in shape when viewed from the front and have a predetermined thickness in the front-to-rear direction, a right wall portion 21C and a left wall portion 21D which are rectangular in shape when viewed from the right side and have a predetermined thickness in the left-to-right direction, a pair of locking portions 21E, and a handle 21F.

[0045] The front wall 21A and the rear wall 21B are disposed substantially parallel to each other, the right wall 21C connects the right edge of the front wall 21A to the right edge of the rear wall 21B, and the left wall 21D connects the left edge of the front wall 21A to the left edge of the rear wall 21B. The upper ends of the front wall 21A, the rear wall 21B, the right wall 21C, and the left wall 21D each define an opening 2a that is substantially rectangular in plan view, in other words, the upper end of the peripheral wall 21 defines the opening 2a.

[0046] 1 and 2, the pair of locking parts 21E are manually operable locking mechanisms for fixing the opening / closing lid part 3 to the storage part 2, and are provided side by side in the left-right direction at the upper part of the front surface of the front wall part 21A. As shown in Fig. 1, the handle 21F is a part that a user holds when carrying the temperature regulating container 1, and is provided at the upper part of the left surface of the left wall part 21D. In detail, the handle 21F is connected to the upper part of the left surface of the left wall part 21D via a rotation shaft (not shown), and is configured to be rotatable around the rotation shaft.

[0047] 4 and 5, the floor wall portion 22 is a portion that closes the lower end portion of the peripheral wall portion 21, has a substantially rectangular shape when viewed from the bottom, and has a predetermined thickness in the vertical direction. Also, as shown in Fig. 1, a pair of casters 22B is provided on the right end portion of the floor wall portion 22. The floor wall portion 22 is an example of the "bottom wall portion" in the present invention.

[0048] 3 to 5, the storage space 2b is a space for storing items, and is defined by the inner surfaces of the peripheral wall 21 (the rear surface of the front wall 21A, the front surface of the rear wall 21B, the left surface of the right wall 21C, and the right surface of the left wall 21D) and the upper surface of the floor wall 22. The outer shells of the peripheral wall 21 and the floor wall 22, which are integrally formed, are made of ABS resin, and the interiors of the peripheral wall 21 and the floor wall 22 are filled with a heat insulating material 2A such as urethane foam. This ensures heat insulation within the storage space 2b.

[0049] As shown in FIG. 1, the opening / closing lid 3 has a substantially rectangular parallelepiped shape and is provided rotatably with respect to the storage unit 2. In detail, the rear lower part of the opening / closing lid 3 is connected to the upper end of the rear wall 21B of the storage unit 2 via a rotation shaft extending in the left-right direction (not shown), and is configured to be rotatable about the rotation shaft between a closed position (the state shown in FIGS. 1 to 5) in which the opening 2a of the storage unit 2 is closed and an open position (not shown) in which the opening 2a is opened. When the opening / closing lid 3 is in the open position, the opening 2a is opened and the storage space 2b can be accommodated through the opening 2a. When the opening / closing lid 3 is in the closed position, the opening 2a is closed and the storage space 2b is in a sealed state. The opening / closing lid 3 is fixed to the storage unit 2 by a pair of locking parts 21E, thereby improving the sealing property within the storage space 2b. The opening / closing lid 3 is an example of the "opening / closing part" in the present invention.

[0050] 1 to 5, the opening / closing cover 3 is provided with a heat exchange section 4, a first fan section 5, a battery connection section 6, a second fan section 7, and a control board section 8, and as shown in Fig. 6, a battery accommodating space 3a, a fan accommodating space 3b, and a board accommodating space 3c are defined inside the opening / closing cover 3. Fig. 6 is a partial cross-sectional plan view showing the inside of the opening / closing cover 3.

[0051] As shown in Figures 3 to 6, the opening / closing lid portion 3 includes a lid floor wall portion 31 that defines the bottom surface of the opening / closing lid portion 3 and closes the opening 2a in the closed position, a front plate portion 32 that extends upward from the front edge of the upper surface of the lid floor wall portion 31 and defines the front surface of the opening / closing lid portion 3, a rear plate portion 33 that extends upward from the rear edge of the upper surface of the lid floor wall portion 31 and defines the rear surface, a right plate portion 34 that extends upward from the right edge of the upper surface of the lid floor wall portion 31 and defines the right side surface, a left plate portion 35 that extends upward from the left edge of the upper surface of the lid floor wall portion 31 and defines the left side surface, and an upper plate portion 36 that connects the upper ends of the front plate portion 32, the rear plate portion 33, the right plate portion 34 and the left plate portion 35.

[0052] 4 and 5, the lid floor wall portion 31 has a first floor portion 311 and a second floor portion 312 each having a substantially rectangular shape elongated in the front-rear direction when viewed from the bottom and a predetermined thickness in the up-down direction, and an inclined floor portion 313 integrally connected to the first floor portion 311 and the second floor portion 312. The outer portion of the lid floor wall portion 31 (the first floor portion 311, the second floor portion 312, and the inclined floor portion 313 which are integrally formed) is made of ABS resin, and the inside of the lid floor wall portion 31 is filled with a heat insulating material 2A such as urethane foam. This improves the heat insulation in the storage space 2b when the opening / closing lid portion 3 is in the closed position.

[0053] The first floor 311 forms the left part of the opening / closing cover 3 and is located above the second floor 312. The second floor 312 forms the right part of the opening / closing cover 3. As shown in FIG. 3, a through hole 312a, which is generally circular in plan view and penetrates the second floor 312 in the up-down direction, is formed slightly rearward of the center of the second floor 312 in the front-to-rear direction. A heat exchange unit 4 is disposed within the through hole 312a. Furthermore, a first fan unit 5 is provided on the underside of the second floor 312. The inclined floor 313 connects the right edge of the first floor 311 and the left edge of the second floor 312.

[0054] Here, the positional relationship between the first floor portion 311 and the second floor portion 312 will be described with reference to Fig. 4. The upper surface 311A ​​of the first floor portion 311 is located higher than the upper surface 312A of the second floor portion 312, and the separation distance L1 between the upper surface 311A ​​of the first floor portion 311 and the upper surface 22A of the floor wall portion 22 of the storage unit 2 is configured to be longer than the separation distance L2 between the upper surface 312A of the second floor portion 312 and the upper surface 22A of the floor wall portion 22. In other words, the upper surface 311A ​​of the first floor portion 311 is located higher than the upper surface 312A of the second floor portion 312.

[0055] Furthermore, in this state, the lower surface 311B of the first floor portion 311 is located higher than the lower surface 312B of the second floor portion 312, and the separation distance L3 between the lower surface 311B of the first floor portion 311 and the upper surface 22A of the floor wall portion 22 is longer than the separation distance L4 between the lower surface 312B of the second floor portion 312 and the upper surface 22A of the floor wall portion 22. In this embodiment, the separation distance L3 is approximately 364 mm, and can accommodate a 2 L PET bottle (approximately 310 mm), and the separation distance L4 is approximately 305 mm, and can accommodate a 500 mL PET bottle (approximately 218 mm). The separation distance L1 is approximately 394 mm, and the separation distance L2 is approximately 335 mm.

[0056] Next, we will explain the battery accommodating space 3a, the fan accommodating space 3b, and the board accommodating space 3c defined inside the opening / closing cover 3. As shown in Fig. 6, the battery accommodating space 3a is defined in the front right part of the opening / closing cover 3, the fan accommodating space 3b is defined in the rear right part of the opening / closing cover 3, and the board accommodating space 3c is defined on the left side of the opening / closing cover 3.

[0057] A battery connection portion 6 is provided in the battery accommodating space 3a, and the battery pack P can be accommodated in a state where it is connected to the battery connection portion 6. The battery accommodating space 3a is defined by the front portion of the upper surface 312A of the second floor portion 312 (FIGS. 3 and 4), the right rear surface of the front plate portion 32 (FIGS. 3 and 6), the front surface (FIGS. 3 and 6) of the first partition plate 37 extending upward from a portion slightly forward of the center in the front-rear direction on the upper surface 312A, the front left side surface (FIGS. 4 and 6) of the right plate portion 34, the right side surface (FIGS. 4 and 6) of the second partition plate 38 extending upward from the front portion of the right edge of the upper surface 311A ​​of the first floor portion 311, and the lower surface (FIGS. 3 and 4) of the front right portion of the upper plate portion 36, and is a space that does not communicate with the fan accommodating space 3b and the board accommodating space 3c. The battery accommodating space 3a and the portion defining the battery accommodating space 3a are an example of the "battery accommodating portion" of the present invention.

[0058] An upper portion of the portion of the front plate 32 that defines the battery accommodating space 3a and a portion of the portion of the upper plate 36 that defines the battery accommodating space 3a are cut out, and a battery lid 3A is provided in the cut out portion. The battery lid 3A is connected to the front plate 32 via a rotation shaft 32A that is provided on the front plate 32 and extends in the left-right direction, and is configured to be rotatable about the rotation shaft 32A between a closed position (a state shown in Figs. 2 to 4, a closed state) in which the battery accommodating space 3a is disconnected from the outside, and an open position (a state shown in Figs. 7 and 8, an open state) in which the battery accommodating space 3a is connected to the outside. When the battery pack P is connected to the battery connection portion 6, the battery lid 3A exposes the battery pack P to the outside in the open position, and covers the battery pack P in the closed position. Fig. 7 is a perspective view showing the appearance of the temperature control container 1 when the battery lid 3A is in an open position (open state), and Fig. 8 is a partial cross-sectional view taken along line III-III in Fig. 2, showing the inside of the temperature control container 1 when the battery lid 3A is in an open position. The battery lid 3A is an example of the "lid" in the present invention.

[0059] The second fan section 7 is provided in the fan accommodating space 3b. The fan accommodating space 3b is defined by the rear part of the upper surface 312A of the second floor section 312 (FIGS. 3 and 5), the right front surface of the rear plate section 33 (FIGS. 3 and 6), the rear surface of the first partition plate 37 (FIGS. 3 and 6), the rear left side surface of the right plate section 34 (FIGS. 5 and 6), the right side surface of the third partition plate 39 extending downward from approximately the center in the left-right direction of the lower surface of the upper plate section 36 (FIGS. 5 and 6), and the lower surface of the right rear part of the upper plate section 36 (FIGS. 3 and 5).

[0060] 5, a gap that connects the fan accommodating space 3b and the board accommodating space 3c is formed between the lower end of the third partition plate 39 and the inclined floor portion 313. Furthermore, as shown in Fig. 1 and Fig. 2, a plurality of intake holes 3d that connect the fan accommodating space 3b to the outside are formed in a portion of the upper plate portion 36 that defines the fan accommodating space 3b, and a plurality of exhaust holes 3e that connect the fan accommodating space 3b to the outside are formed in a portion of the right plate portion 34 that defines the fan accommodating space 3b.

[0061] The control board section 8 is provided in the board accommodation space 3c. The board accommodation space 3c is defined by an upper surface 311A ​​(FIGS. 4 and 5) of the first floor section 311, a left rear surface (FIG. 6) of the front plate section 32, a left front surface (FIG. 6) of the rear plate section 33, a right side surface (FIGS. 4 and 6) of the left plate section 35, a left side surface (FIGS. 4 and 6) of the second partition plate 38, a left side surface (FIGS. 5 and 6) of the third partition plate 39, and a left lower surface (FIGS. 4 and 5) of the upper plate section 36. The board accommodation space 3c and the portion defining the board accommodation space 3c are an example of the "board accommodation section" in the present invention.

[0062] As shown in Fig. 2, a plurality of exhaust holes 3f are formed in the front part of the left plate part 35 that defines the board accommodation space 3c. As shown in Fig. 1, an operation display part 3B is provided in front of the part of the front plate part 32 that defines the board accommodation space 3c.

[0063] Here, the operation display unit 3B will be described with reference to Fig. 9 and Fig. 10. Fig. 9 is a diagram showing the operation display unit 3B, and Fig. 10 is a circuit diagram including a block diagram showing the electrical configuration of the temperature regulating container 1, showing the state in which it is connected to the battery pack P.

[0064] As shown in Fig. 9, the operation display unit 3B includes a power switch 3F, a hot / cold selector switch 3G, and an output selector switch 3H, which are manually operable push-type switch buttons, and a cooling lamp 3I, a heating lamp 3J, a high-output lamp 3K, a low-output lamp 3L, and a charging lamp 3M, which are configured as LEDs for indicating the mode status. Also, as shown in Fig. 10, the three push-type switches and each lamp of the operation display unit 3B are connected to a control board unit 8, and the three switch buttons are configured to output signals to the control board unit 8 according to user operations, and the lighting state of each lamp is changed by the control board unit 8 according to the mode status.

[0065] The power switch 3F is a switch for switching on / off the power of the temperature control container 1. The hot / cold changeover switch 3G is a switch for switching between a cooling mode, a heating mode, and a hot / cold off mode. The output changeover switch 3H is a switch for switching between a high mode, a normal mode, and a low mode.

[0066] In this embodiment, when the mode is set to the cooling mode, the cooling lamp 3I is turned on and the heating lamp 3J is turned off, when the mode is set to the heating mode, the cooling lamp 3I is turned off and the heating lamp 3J is turned on, and when the mode is set to the hot / cold off mode, the cooling lamp 3I and the heating lamp 3J are turned off. When the mode is set to the high mode, the high output lamp 3K is turned on and the low output lamp 3L is turned off, when the mode is set to the low mode, the high output lamp 3K is turned off and the low output lamp 3L is turned on, and when the mode is set to the normal mode, the high output lamp 3K and the low output lamp 3L are turned off. When the battery pack P is being charged, the charging lamp 3M is turned on and turned off when the battery pack P is not being charged. For example, when the battery pack P is in the cooling mode and the high mode and charging is not being performed, the cooling lamp 3I and the high output lamp 3K are turned on and the other lamps are turned off.

[0067] Returning to FIG. 6, an external power supply connection section 3C is provided in a portion of the rear plate section 33 that defines the board accommodation space 3c. As shown in FIG. 10, the external power supply connection section 3C has an external positive terminal 3D and an external negative terminal 3E connected to the control board section 8, and is configured to be connectable to an external power supply other than the battery pack P. For example, a cable F shown in FIG. 6 can be used to connect to an in-vehicle battery, with one end of the cable F having a terminal F1 connectable to the external power supply connection section 3C and the other end having a cigarette lighter socket F2. Also, for example, a cable G having an AC / DC conversion adapter G1, one end having a terminal G2 connectable to the external power supply connection section 3C, and the other end having a power outlet plug G3 can be used to connect to a commercial power supply (AC 100V) for home use. The external power supply connection section 3C is an example of the "power supply connection section" in the present invention.

[0068] Next, a description will be given of the heat exchange unit 4. As shown in FIG.

[0069] The Peltier element 41 is a thin plate-like heat exchange element, the upper surface of which is in contact with the second fan unit 7, and the lower surface of which is in contact with the aluminum block 42. The Peltier element 41 has a first terminal 43 and a second terminal 44 (FIG. 10). When a current flows from the first terminal 43 to the second terminal 44, the upper surface generates heat and the lower surface absorbs heat (the lower surface is cooled). On the other hand, when a current flows from the second terminal 44 to the first terminal 43, the upper surface absorbs heat and the lower surface generates heat. The aluminum block 42 is a heat conductive member made of aluminum, and is fitted in the through hole 312a. The lower surface of the aluminum block 42 is close to the first fan unit 5, and exchanges heat between the lower surface of the Peltier element 41 and the first fan unit 5. The heat exchange unit 4 is an example of the "temperature changing means" and the "output unit" in the present invention.

[0070] Next, a description will be given of the first fan section 5. As shown in Fig. 3 to Fig. 5, the first fan section 5 is provided on the underside of the second floor section 312 of the lid floor wall section 31, and has a first fin section 51 and a first fan 52.

[0071] As shown in Fig. 5, the first fin section 51 has a plurality of metallic heat dissipation fins that extend in the front-rear direction and have a predetermined length in the up-down direction, and is located directly below the aluminum block 42 of the heat exchange section 4. The first fan 52 is a centrifugal fan, and is provided in front of the first fin section 51. When the first fan 52 rotates, an air flow A shown in Fig. 3 is generated in the accommodation space 2b, and the air in the accommodation space 2b is agitated. As a result, the air in the accommodation space 2b is cooled when the lower surface of the Peltier element 41 is absorbing heat, and is heated when the lower surface of the Peltier element 41 is generating heat.

[0072] Next, the battery connector 6 and the battery pack P connectable to the battery pack P will be described.

[0073] First, the battery pack P will be described with reference to Fig. 10. As shown in Fig. 10, the battery pack P houses a battery set having a Peltier element 41 and a plurality of secondary batteries that serve as power sources for the control board unit 8. The battery pack P also has a charge positive terminal (C+), a discharge positive terminal (+), a charge / discharge negative terminal (-), a temperature signal output terminal (T), an overcharge signal output terminal (V), a battery type discrimination terminal (Ls), and a battery remaining capacity signal output terminal (LD). In this embodiment, the secondary battery is a lithium ion secondary battery.

[0074] Returning to Fig. 3, a description will be given of the battery connection part 6. As shown in Fig. 3, the battery connection part 6 has a connection terminal part 61 and a pair of guide parts 62 (Fig. 7).

[0075] The connection terminal portion 61 is provided across the front surface of the first partition plate 37 and the upper surface 312A of the second floor portion 312, and is configured to be connectable to the battery pack P. The connection between the connection terminal portion 61 and the battery pack P is achieved by sliding the battery pack P downward (arrow D in FIG. 3) from above the connection terminal portion 61 toward the connection terminal portion 61. The up-down direction is an example of a "first direction" in the present invention, and the down direction is an example of "one of the first directions" in the present invention.

[0076] Also, as shown in FIG. 10, when the connection terminal unit 61 is connected to the battery pack P, the connection terminal unit 61 has seven terminals which are respectively connected to a charge positive terminal (C+), a discharge positive terminal (+), a charge / discharge negative terminal (-), a temperature signal output terminal (T), an overcharge signal output terminal (V), a battery type discrimination terminal (Ls), and a battery remaining capacity signal output terminal (LD).

[0077] As shown in Figure 7, the pair of guide portions 62 are guide rails extending vertically to guide the sliding connection of the battery pack P to the connection terminal portion 61, and are provided at both the left and right ends of the front surface of the first partition plate 37.

[0078] Next, a description will be given of the second fan section 7. As shown in Figures 3 and 5, the second fan section 7 has a second fin section 71 and a second fan 72.

[0079] The second fin section 71 has a plurality of metallic heat dissipation fins extending in the left-right direction and having a predetermined length in the up-down direction, and is located directly above the Peltier element 41 of the heat exchange section 4. The second fan 72 is an axial flow fan, attached to the upper plate section 36, and located directly below the intake hole 3d. When the second fan 72 rotates, airflow B and airflow C shown in Figures 5 and 6 are generated.

[0080] Air flow B is a flow of air that is drawn into the fan accommodating space 3b through the intake hole 3d, passes between the multiple heat dissipation fins of the second fin section 71, flows into the board accommodating space 3c through the gap between the lower end of the second partition plate 38 and the inclined floor section 313, and is then discharged from the exhaust hole 3f. Air flow B cools the control board section 8 whether the underside of the Peltier element 41 is absorbing heat or generating heat.

[0081] Air flow C is a flow of air that is drawn into the fan accommodating space 3b through the intake hole 3d, passes between the multiple heat dissipation fins of the second fin portion 71, and is discharged through the exhaust hole 3e formed in the left plate portion 35. When the lower surface of the Peltier element 41 is absorbing heat due to the air flow C, the heat of the upper surface of the Peltier element 41 can be discharged to the outside via the multiple heat dissipation fins, and the inside of the accommodation space 2b can be cooled efficiently. Also, when the lower surface of the Peltier element 41 is generating heat, the air of the air flow C absorbs heat into the heat dissipation fins due to the air flow C.

[0082] Next, the control board unit 8 will be described. As shown in Figs. 4 to 6, the control board unit 8 includes a control board 81 having a rectangular shape in a plan view, and a power supply circuit 82, a switching circuit 83, and a control unit 84, which are mounted on the control board 81 and will be described later. The control board 81 is installed on the upper surface 311A ​​of the first floor portion 311 in the board housing space 3c. As described above, in this embodiment, the control board 81 is installed on the upper surface 311A ​​of the first floor portion 311, which is located higher than the upper surface 312A of the second floor portion 312 (Fig. 5). Therefore, even if water droplets such as rainwater enter the fan housing space 3b through the intake hole 3d of the upper plate portion 36, the water droplets can be prevented from entering the board housing space 3c, and failure of various circuits mounted on the control board 81 due to the water droplets can be prevented. Furthermore, in this embodiment, a second partition plate 38 is provided between the fan accommodating space 3b and the substrate accommodating space 3c, thereby further preventing water droplets that have entered the fan accommodating space 3b from entering the substrate accommodating space 3c.

[0083] Furthermore, in this embodiment, the thin-plate-shaped control board 81 is provided on the upper surface 311A ​​of the first floor portion 311, which is located higher than the upper surface 312A of the second floor portion 312, and the second fan portion 7, which has a large vertical height, is provided on the upper surface 312A of the second floor portion 312, so that the internal space of the temperature control container 1 when the open-close lid portion 3 is in the open position can be made larger without increasing the vertical dimension of the temperature control container 1. The first floor portion 311 is an example of the "floor of the board accommodating portion" in the present invention, and the second floor portion 312 is an example of the "floor of the battery accommodating portion" in the present invention.

[0084] Next, the electrical configuration of the control board unit 8 will be described with reference to Fig. 10. As shown in Fig. 10, the control board unit 8 includes a power supply circuit 82, a switching circuit 83, and a control unit 84, which are mounted on a control board 81.

[0085] The power supply circuit 82 is a circuit configured to be able to supply power from an external power source connected to the battery pack P and the external power supply connection unit 3C to the heat exchange unit 4, and has a positive line 82A, a negative line 82B, a charging circuit 82C, a first FET 82D, a first power supply circuit 82E, a second FET 82F, and a second power supply circuit 82G. The power supply circuit 82 is an example of the "power supply unit" of the present invention.

[0086] The positive line 82A is a power supply line connected to the external positive terminal 3D of the external power supply connection unit 3C. The negative line 82B is a GND line connected to the external negative terminal 3E of the external power supply connection unit 3C, and is connected to the connection terminal unit 61 (a terminal connected to the charging negative terminal (-) of the battery pack P), the first power supply circuit 82E, the second power supply circuit 82G, the control unit 84, etc.

[0087] The charging circuit 82C is a circuit capable of charging the battery pack P, and is connected between the positive line 82A and the negative line 82B, and is connected to the connection terminal unit 61 (a terminal connected to the charging positive terminal (C+) of the battery pack P) and the control unit 84. The charging circuit 82C converts the voltage applied from the external positive terminal 3D and the external negative terminal 3E to a voltage appropriate for charging the battery pack P based on a charging control signal output from the control unit 84, and charges the battery pack P. For example, when a 12V in-vehicle battery is connected to the external power supply connection unit 3C and the specified charging voltage of the battery group included in the battery pack P is 14.4V, the voltage (12V) of the in-vehicle battery is boosted to 14.4V, and the 14.4V is used to charge the battery pack P under constant current and constant voltage control. Furthermore, if the specified charging voltage of the battery group included in the battery pack P is 18V, the voltage of the vehicle battery (12V) is boosted to 18V, and the battery pack P is charged using this 18V under constant current and constant voltage control.

[0088] The first FET 82D is a switching element in which conduction / non-conduction between the drain and source is switched by a signal from the control unit 84, and its drain is connected to the positive line 82A and the connection terminal unit 61 (a terminal connected to the discharge positive terminal (+) of the battery pack P), its source is connected to the first power supply circuit 82E, and its gate is connected to the control unit 84.

[0089] The first power supply circuit 82E is a constant voltage power supply circuit that supplies power to the first fan 52, the second fan 72, and the Peltier element 41, and converts the voltage applied via the first FET 82D to 12 V and outputs it. When the connection terminal unit 61 and the battery pack P are not connected, the voltage of an external power supply (12 V in this embodiment) is applied to the first power supply circuit 82E via the plus line 82A and the first FET 82D, and when the connection terminal unit 61 and the battery pack P are connected, the voltage of the battery pack P (battery set) or a voltage boosted by the charging circuit 82C (14.4 V or 18 V in this embodiment) is applied via the connection terminal unit 61 (terminal connected to the discharge plus terminal (+)) and the first FET 82D.

[0090] The second FET 82F is a switching element that switches drain-source conduction / non-conduction in response to a signal from the control unit 84. The drain is connected to the switching circuit 83, the source to the first power supply circuit 82E, and the gate to the control unit 84.

[0091] The second power supply circuit 82G is a constant voltage power supply circuit that supplies power to the control unit 84, and is connected to the positive line 82A and the connection terminal unit 61 (a terminal connected to the discharge positive terminal (+) of the battery pack P). The second power supply circuit 82G converts the voltage applied via the positive line 82A or the connection terminal unit 61 to 5 V and outputs it to the control unit 84.

[0092] The switching circuit 83 is a contact switching circuit provided between the power supply circuit 82 and the Peltier element 41, and switches the connection state between the power supply circuit 82 and the Peltier element 41 among the first connection, the second connection, and the third connection based on a signal from the control unit 84. In the first connection, the first terminal 43 of the Peltier element 41 is connected to the negative line 82B, and the second terminal 44 is connected to the first power supply circuit 82E via the second FET 82F. In the second connection, the first terminal 43 is connected to the first power supply circuit 82E via the second FET 82F, and the second terminal 44 is connected to the negative line 82B. In the third connection, the Peltier element 41 is not connected to the power supply circuit 82.

[0093] In this embodiment, when power is supplied to the Peltier element 41 in the first connection state, the upper surface of the Peltier element 41 generates heat and the lower surface absorbs heat. That is, the first connection is a connection for cooling the inside of the accommodation space 2b (keeping the contents cold). When power is supplied to the Peltier element 41 in the second connection state, the upper surface of the Peltier element 41 absorbs heat and the lower surface generates heat. That is, the second connection is a connection state for heating the inside of the accommodation space 2b (keeping the contents warm). When the third connection is set, power is not supplied to the Peltier element 41, and the Peltier element 41 does not exchange heat.

[0094] The control unit 84 includes a calculation unit (not shown) having a central processing unit (CPU) that performs calculations based on a processing program used to control the operation of the temperature control container 1 and various data, a storage unit (not shown) having a ROM (not shown) for storing the processing program, various tables, various threshold values, etc., and a RAM (not shown) for temporarily storing data. In this embodiment, the control unit 84 is a microcomputer.

[0095] The control unit 84 is connected to the charging circuit 82C and four terminals of the connection terminal unit 61 (four terminals respectively connected to the temperature signal output terminal (T), overcharge signal output terminal (V), battery type discrimination terminal (Ls), and battery remaining capacity signal output terminal (LD) of the battery pack P), and performs temperature monitoring, overcharge monitoring, battery type discrimination, and battery remaining capacity monitoring for the battery pack P, as well as controls the charging of the battery pack P by the charging circuit 82C. The control unit 84 is also connected to a temperature detection element 3N that detects the temperature within the accommodating space 2b, and monitors the temperature within the accommodating space 2b. In this embodiment, the temperature detection element 3N is, for example, a thermistor disposed near the aluminum block 42. The temperature detection element 3N is an example of the "temperature detection means" in the present invention.

[0096] The control unit 84 switches the power supply to the first power supply circuit 82E on / off based on a signal output from the power switch 3F of the operation display unit 3B. The power supply to the first power supply circuit 82E is switched on / off by switching the conduction / non-conduction between the drain and source of the first FET 82D.

[0097] The control unit 84 switches the modes related to cooling and heating among the cooling mode, the heating mode, and the hot / cold off mode based on a signal output from the hot / cold changeover switch 3G of the operation display unit 3B. When the cooling mode is selected, the control unit 84 outputs a signal (signal line not shown) to the switching circuit 83 to set the first connection, when the heating mode is selected, the second connection, and when the hot / cold off mode is selected, the third connection.

[0098] The control unit 84 switches the output mode among high mode, normal mode, and low mode based on a signal output from the output changeover switch 3H of the operation display unit 3B. In each mode, the control unit 84 controls (changes) the power supplied to the Peltier element 41 (Peltier supply power) using PWM control based on four elements: the connection state between the external power supply connection unit 3C and the external power supply (existence of external power supply input), the connection state between the connection terminal unit 61 and the battery pack P (existence of battery connection), the remaining battery level of the battery pack P, and the temperature inside the accommodation space 2b (accommodation space temperature). The control unit 84 performs PWM control by outputting a PWM signal to the gate of the second FET 82F.

[0099] Here, the control of the Peltier supply power by the control unit 84 in each of the high mode, normal mode, and low mode will be described with reference to Fig. 11. Fig. 11 is a table showing the Peltier supply power according to the presence or absence of an external power supply input, the presence or absence of a battery connection, the remaining battery level, and the temperature of the accommodation space in each mode.

[0100] As shown in FIG. 11, when there is an external power input, the control unit 84 performs the same control in the high mode, normal mode, and low mode, and when there is no external power input and a battery is connected, the control unit 84 performs different controls for each mode.

[0101] The case where an external power supply is input will be described below. As shown in Fig. 11, when an external power supply is input and a battery is not connected, there is no need to charge the battery pack P, and all of the power supplied from the external power supply via the external power supply connection part 3C can be supplied to the Peltier element 41, so that the Peltier supply power is set to a maximum of 50 W in all of the high mode, normal mode, and low mode to cool or heat the accommodation space 2b.

[0102] Also, in each mode, when there is an external power input and a battery connection, it is determined whether the battery pack P is fully charged, and when it is fully charged, there is no need to charge the battery pack P, so the Peltier supply power is set to the maximum of 50 W to cool or heat the inside of the accommodation space 2b. On the other hand, when there is an external power input and a battery connection in each mode, if the battery pack P is not fully charged and needs to be charged ("empty" in FIG. 11), the Peltier supply power is set to 35 W to cool or heat, and the charging power of the battery pack P is set to 10 W. Whether the battery pack P is fully charged is determined based on the battery remaining amount signal output from the battery remaining amount signal output terminal (LD).

[0103] A case where there is no external power input and there is a battery connection, i.e., where the temperature adjustment container 1 is driven using the battery pack P as a power source, will be described. When there is no external power input and there is a battery connection, the Peltier supply power is changed according to the accommodation space temperature. In detail, if the cooling mode is set in this state, the Peltier supply power is changed depending on whether the accommodation space temperature is higher or lower than a predetermined cooling temperature threshold, and if the heating mode is set, the Peltier supply power is changed depending on whether the accommodation space temperature is lower or higher than a predetermined heating temperature threshold.

[0104] Here, a case will be described in which there is no external power supply input and the battery is connected when the cooling mode is selected.

[0105] When the cooling mode is selected, there is no external power input, and a battery is connected, in high mode, cooling within the storage space 2b is given top priority, and the Peltier supply power is set to a maximum of 50 W when the storage space temperature is both higher and lower than the cooling temperature threshold. In this way, in high mode, cooling within the storage space 2b is given top priority, so that the contents can be cooled rapidly.

[0106] In the normal mode, when the accommodation space temperature is higher than the cooling temperature threshold, that is, when the need for cooling in the accommodation space 2b is high, the Peltier supply power is set to the maximum of 50 W, giving top priority to cooling. On the other hand, when the accommodation space temperature is lower than the cooling temperature threshold, that is, when the need for cooling in the accommodation space 2b is low, suppression of power consumption of the battery pack P is given priority over cooling, and the Peltier supply power is set to 20 W. In this way, in the normal mode, when cooling in the accommodation space 2b is necessary, the Peltier supply power is set to the maximum, and when the need for cooling is low, the Peltier supply power is set to 20 W to suppress the power consumption of the battery pack P. As a result, the accommodation space 2b can be cooled efficiently and the operating time of the temperature adjustment container 1 by the battery pack P can be extended.

[0107] In the low mode, the first priority is given to suppressing the power consumption of the battery pack P, and the Peltier supply power is set to 20 W both when the temperature of the accommodation space is higher and lower than the cooling temperature threshold. In this way, in the low mode, the first priority is given to suppressing the power consumption, so that the driving time of the temperature adjustment container 1 by the battery pack P can be extended.

[0108] As described above, the temperature regulating container 1 according to this embodiment includes a storage section 2 in which an opening 2a is formed and a storage space 2b continuous with the opening 2a is defined therein, an opening / closing lid section 3 capable of opening and closing the opening 2a, a heat exchange section 4 that changes the temperature within the storage space 2b when power is supplied to it, a battery connection section 6 configured to be connectable to a battery pack P, a power supply circuit 82 configured to be able to supply power from the battery pack P to the heat exchange section 4, and a control board section 8 that controls the power supplied from the power supply circuit 82 to the heat exchange section 4.

[0109] According to this configuration, since the battery connection unit 6 configured to be connectable to the battery pack P is provided, even if the battery pack P breaks down, power can be supplied to the heat exchange unit 4 by connecting another battery pack to the battery connection unit 6. This provides higher convenience and easier maintenance than a configuration using an internal battery.

[0110] In this embodiment, the control unit 84 is mounted on the control board 81, and the battery connection unit 6 and the control board 81 are provided on the opening / closing cover 3. This allows the storage space 2b to be wider than a configuration in which the battery connection unit 6 and the control board 81 are provided on the storage unit 2. When the opening 2a is closed by the opening / closing cover 3 with the battery pack P connected to the battery connection unit 6, the weight of the battery pack P can improve the airtightness of the storage space 2b. By providing the battery connection unit 6 on the opposite side (front side) to the hinge side (rear side) that serves as the pivot point of the opening / closing cover 3, the weight of the battery pack P can be used to further improve the airtightness compared to when the battery connection unit 6 is provided on the hinge side. In addition, the battery pack P is heavy compared to a single dry cell, so the battery pack is effective in improving the airtightness.

[0111] In this embodiment, the opening / closing lid 3 has a battery accommodating space 3a capable of accommodating the battery pack P connected to the battery connection portion 6, and a portion that defines the battery accommodating space 3a, and the portion that defines the battery accommodating space 3a has a battery lid 3A that covers the battery pack P connected to the battery connection portion 6 in the closed position and exposes the battery pack P in the open position. This makes it possible to protect the battery pack P connected to the battery connection portion 6 from impact, rainwater, and the like, and to prevent failure of the battery pack P.

[0112] In this embodiment, the storage section 2 has a peripheral wall section 21 that extends in the vertical direction and whose upper end defines the opening 2a, and a floor wall section 22 that closes the lower end of the peripheral wall section 21, and the opening / closing lid section 3 has a board storage space 3c that stores the control board 81 and a portion that defines the board storage space 3c, and is configured such that, when the opening / closing lid section 3 closes the opening 2a, the separation distance L3 between the first floor section 311 and the floor wall section 22 in the vertical direction is longer than the separation distance L4 between the second floor section 312 and the floor wall section 22. When the temperature control container 1 is placed on the ground with the floor wall section 22 facing downward, the first floor section 311 is located higher than the second floor section 312. This makes it possible to widen the space between the first floor section 311 and the floor wall section 22 when the opening / closing lid section 3 closes the opening 2a of the storage section 2. Furthermore, in a configuration in which the battery accommodating section and the board accommodating section are connected to each other, even if rainwater or the like enters the battery accommodating section, the rainwater can be prevented from flowing into the board accommodating section, thereby protecting the control board.

[0113] In this embodiment, the battery connection portion 6 is configured to be connected to the battery connection portion 6 by moving the battery pack P downward (arrow D in FIG. 3) in the up-down direction toward the battery connection portion 6. This allows the battery pack P to be easily connected to the battery connection portion 6.

[0114] Furthermore, in this embodiment, an external power supply connection unit 3C that can be connected to an external power supply (such as an in-vehicle battery or a household commercial power supply) is provided, and the power supply circuit 82 is configured to be able to supply power from the external power supply to the heat exchange unit 4. This allows power to be supplied to the heat exchange unit 4 even when there is no remaining charge in the battery pack, further improving convenience.

[0115] In this embodiment, the temperature detection element 3N is provided to detect the temperature of the storage space 2b, and the control unit 84 controls the power supplied to the heat exchange unit 4 based on at least one of the connection state between the battery connection unit 6 and the battery pack P, the connection state between the external power supply connection unit 3C and the external power supply, and the temperature of the storage space 2b. This allows appropriate power to be supplied to the heat exchange unit 4. The battery pack is preferably a battery pack for a power tool. With this configuration, it is possible to increase the amount of power that can be supplied to the temperature changing means compared to when a dry battery is used. In addition, the battery pack can be used when working with a power tool. In addition, if the battery pack is configured to be attached to the opening / closing unit, it is heavier than a dry battery, so that when the opening is closed by the opening / closing unit with the battery pack connected to the battery connection unit, the weight of the battery pack can further increase the airtightness of the storage space.

[0116] Next, a temperature regulating container 200, which is an example of an electrical device according to a second embodiment of the present invention, will be described with reference to Fig. 12 to Fig. 15. Note that the same members and configurations as those of the temperature regulating container 1 are given the same reference numerals and will not be described again, and only the different configurations will be described.

[0117] As shown in Figs. 12 to 15, the temperature adjustment container 200 includes a battery connector 206 and a battery lid 203A. Fig. 12 is a plan view showing the appearance of the temperature adjustment container 200, showing a state in which a battery pack P is connected to the battery connector 206. Fig. 13 is a partial cross-sectional view taken along line XIII-XIII in Fig. 12 showing the inside of the temperature adjustment container 200, showing a state in which the battery lid 203A is in a closed position. Fig. 14 is a partial cross-sectional view taken along line XIII-XIII in Fig. 12 showing the inside of the temperature adjustment container 200, showing a state in which the battery lid 203A is in an open position. Fig. 15 is a partial cross-sectional plan view showing the inside of the opening / closing lid part 3 of the temperature adjustment container 200.

[0118] 13 and 14, the battery connection portion 206 has a connection terminal portion 261 and a pair of guide portions (not shown). The connection terminal portion 261 is provided on the upper surface 312A of the second floor portion 312, and is configured to be connectable to a battery pack P. The connection between the connection terminal portion 261 and the battery pack P is achieved by sliding the battery pack P from the right of the connection terminal portion 261 to the left (arrow E in FIG. 14) toward the connection terminal portion 261. The left-right direction is an example of the "second direction" in the present invention, and the left direction is an example of "one of the second directions" in the present invention.

[0119] The pair of guide portions are guide rails extending laterally for guiding the sliding connection of the battery pack P to the connection terminal portion 261, and are provided on the upper surface 312A of the second floor portion 312 with a predetermined gap therebetween in the front-rear direction.

[0120] 12, the battery lid 203A is rotatably connected to two pivot shafts 236A extending in the front-rear direction provided on the upper plate portion 36, and is configured to be rotatable about the pivot shafts 236A between an open position (the state shown in FIG. 14) that connects the battery accommodating space 3a to the outside, and a closed position (the state shown in FIG. 13) that blocks communication between the battery accommodating space 3a and the outside. Furthermore, when the battery pack P is connected to the battery connection portion 206, the battery lid 203A exposes the battery pack P to the outside in the open position, and covers the battery pack P in the closed position.

[0121] Thus, the temperature regulating container 200, which is an example of an electric device according to the second embodiment of the present invention, is configured to be connected to the battery pack P by moving the battery pack P leftward in the left-right direction intersecting with the up-down direction toward the battery connection part 206. This makes it possible to prevent the connection between the battery pack P and the battery connection part 206 (the terminal of the battery pack P and the connection terminal part 261) from becoming unstable due to the centrifugal force caused by the opening and closing of the opening and closing lid part 3. Furthermore, since the vertical dimension of the battery accommodating space 3a can be reduced compared to the first embodiment, the separation distances L2 and L4 can be made wider.

[0122] Next, a temperature regulating container 300, which is an example of an electrical device according to a third embodiment of the present invention, will be described with reference to Fig. 16. The same members and configurations as those of the temperature regulating containers according to the above-mentioned embodiments are given the same reference numerals and their explanations will be omitted, and only the different configurations will be described. Fig. 16 is a partial cross-sectional plan view showing the inside of the opening / closing lid part 3 of the temperature regulating container 300.

[0123] The temperature regulating container 300 is provided with a battery connection section 306 having a connection terminal section (not shown) and a pair of guide sections (not shown). The connection terminal section of the battery connection section 306 is provided on an upper surface 312A of the second floor section 312, and is configured to be connectable to a battery pack P. The connection between the connection terminal section of the battery connection section 306 and the battery pack P is achieved by sliding the battery pack P backward (arrow F in FIG. 16) from the front of the connection terminal section toward the connection terminal section. The front-to-rear direction is an example of the "second direction" in the present invention, and the rear direction is an example of "one of the second directions" in the present invention.

[0124] The pair of guide portions of the battery connection portion 306 are guide rails extending in the front-rear direction to guide the sliding connection of the battery pack P to the connection terminal portion, and are provided on the upper surface 312A of the second floor portion 312 with a predetermined gap therebetween in the left-right direction.

[0125] Thus, the temperature adjustment container 300, which is an example of an electric device according to the third embodiment of the present invention, is configured to be connected to the battery pack P by moving the battery pack P rearward in the front-rear direction intersecting the up-down direction toward the battery connection part 306. Therefore, the battery pack P can be attached and detached from the same direction (front) as the operation display part 3B. Therefore, it is possible to remove the battery pack P after checking whether the temperature adjustment container 300 is activated. Furthermore, since the vertical dimension of the battery accommodating space 3a can be reduced compared to the first embodiment, the separation distances L2 and L4 can be made wider.

[0126] Next, a temperature regulating container 400, which is an example of an electrical device according to a fourth embodiment of the present invention, will be described with reference to Fig. 17. The same members and configurations as those of the temperature regulating containers according to the above-mentioned embodiments are given the same reference numerals and their explanations will be omitted, and only the different configurations will be described. Fig. 17 is a partial cross-sectional plan view showing the inside of the opening / closing lid part 3 of the temperature regulating container 400.

[0127] Two battery connectors (not shown) are provided in the battery accommodating space 3a of the temperature adjustment container 400, and the temperature adjustment container 400 is configured so that a battery pack P can be accommodated in a connected state to each of the two battery connectors.

[0128] As described above, the temperature regulating container 400, which is an example of an electric device according to the fourth embodiment of the present invention, has a plurality of battery connection parts, specifically, two battery connection parts in the battery accommodating space 3a, and therefore can supply power from two battery packs P to the heat exchanger 4, i.e., can increase the amount of power that can be supplied to the heat exchanger 4. This allows the contents to be cooled or heated for a long period of time. The battery packs P may be connected by sliding in the vertical direction as in the first embodiment.

[0129] Next, a temperature control container 500, which is an example of an electrical device according to a fifth embodiment of the present invention, will be described with reference to Fig. 18. The same members and configurations as those of the temperature control containers according to the above-mentioned embodiments are given the same reference numerals and their explanations will be omitted, and only the different configurations will be described. Fig. 18 is a partial cross-sectional plan view showing the inside of the opening / closing lid part 3 of the temperature control container 500.

[0130] A first battery accommodating space 503a, a second battery accommodating space 503b, and a fan accommodating space 503c are defined within the opening / closing cover 3 of the temperature adjustment container 500, which are independent from each other. In detail, the first battery accommodating space 503a is defined in the front right part of the opening / closing cover 3, the second battery accommodating space 503b is defined in the rear right part, and the fan accommodating space 503c is defined between the first battery accommodating space 503a and the second battery accommodating space 503b. A battery connection part (not shown) is provided in each of the first battery accommodating space 503a and the second battery accommodating space 503b.

[0131] In this manner, the opening / closing lid part 3 of the temperature control container 500, which is an example of an electric device according to the fifth embodiment of the present invention, is configured to define two battery accommodating spaces, the first battery accommodating space 503a and the second battery accommodating space 503b, which are separated from each other, and is capable of accommodating a battery pack P. This allows power to be supplied from two battery packs P to the heat exchanger 4, i.e., it is possible to increase the amount of power that can be supplied to the heat exchanger 4. This allows the contents to be cooled or heated for a long period of time.

[0132] Next, a temperature regulating container 600, which is an example of an electrical device according to a sixth embodiment of the present invention, will be described with reference to Fig. 19. The same members and configurations as those of the temperature regulating containers according to the above-mentioned embodiments are given the same reference numerals and their explanations will be omitted, and only the different configurations will be described. Fig. 19 is a partial cross-sectional front view showing the inside of the temperature regulating container 600.

[0133] 19, a fan accommodating space 603b is defined on the right side of the openable / closing cover 3 of the temperature control container 600, a battery accommodating space 603a is defined on the upper left side, and a board accommodating space 603c is defined on the lower left side. The battery accommodating space 3a and the board accommodating space 603c are separated by a partition wall 603A. A battery connection part 606 is provided on the upper surface of the partition wall 603A within the battery accommodating space 603a.

[0134] In this way, the left space in the opening / closing cover part 3 of the temperature regulating container 600, which is an example of an electric device according to the sixth embodiment of the present invention, is separated into a battery accommodating space 603a and a board accommodating space 603c by a partition wall 603A. This allows the distance between the terminal connection part and the control board 81 to be shortened, and the wiring connecting them can be shortened. This makes assembly easier and reduces costs. Also, the accommodating space 2b can be made wider.

[0135] Next, a temperature regulating container 700, which is an example of an electrical device according to a seventh embodiment of the present invention, will be described with reference to Fig. 20. The same members and configurations as those of the temperature regulating containers according to the above-mentioned embodiments are given the same reference numerals and their explanations will be omitted, and only the different configurations will be described. Fig. 20 is a partial cross-sectional front view showing the inside of the temperature regulating container 700.

[0136] As shown in Fig. 20, the temperature regulating container 700 includes a storage section 702 and an opening / closing lid 703. The lower right side of the storage section 702 is recessed to the left, and a battery storage space 702a is defined in the recessed portion, and a battery connection section 706 is provided in the battery storage space 702a. A fan storage space 703b is defined on the right side of the opening / closing lid 703, and a board storage space 703c is defined on the left side. The battery connection section 706 is provided on the opposite side (lower right part in the figure) to the part where the caster 22B is provided (lower left part in the figure).

[0137] Thus, in the temperature control container 700, which is an example of an electric device according to the seventh embodiment of the present invention, the battery storage space 702a is defined on the lower right side of the storage section 702. This allows the opening / closing lid section 3 to be made lighter, making it easier to open and close the opening / closing lid section 3. In addition, a configuration can be achieved in which foreign matter such as rainwater is less likely to enter the battery storage space 702a. In addition, since the lower part of the temperature control container 700 is heavy, the temperature control container 700 can be placed stably. In addition, when the electric device is tilted by the casters 22B to discard water or the like accumulated in the storage section 702, even if the water flows down the wall surface of the storage section 702, it is possible to prevent the water from flowing into the battery connection section 706.

[0138] Next, a temperature regulating container 800, which is an example of an electrical device according to an eighth embodiment of the present invention, will be described with reference to Fig. 21. The same members and configurations as those of the temperature regulating containers according to the above-mentioned embodiments are given the same reference numerals and will not be described again, and only the different configurations will be described. Fig. 21 is a partial cross-sectional front view showing the inside of the temperature regulating container 800.

[0139] As shown in Fig. 21, the temperature regulating container 800 includes a storage section 802 and an opening / closing lid 803. A battery storage space 802a is defined on the lower right side of the storage section 802, and a battery connection section 806 is provided within the battery storage space 802a. A board storage space 802c is defined on the lower left side of the storage section 802. A fan storage space 803b is defined on the right side within the opening / closing lid 803. The battery connection section 806 is provided on the opposite side (lower right part in the figure) to the part where the caster 22B is provided (lower left part in the figure).

[0140] Thus, in the temperature control container 800, which is an example of an electric device according to the eighth embodiment of the present invention, the battery storage space 802a is defined on the lower right side of the storage section 802, and the board storage space 802c is defined on the lower left side of the storage section 802. This allows the opening and closing lid section 3 to be made lighter, making it easier to open and close the opening and closing lid section 3. In addition, a configuration can be achieved in which foreign matter such as rainwater is less likely to enter the board storage space 802c or the battery storage space 802a. In addition, since the lower part of the temperature control container 700 is heavy, the temperature control container 700 can be placed stably. In addition, when the electric device is tilted by the casters 22B to discard water or the like accumulated in the storage section 702, even if the water flows down the wall surface of the storage section 802, it is possible to prevent the water from flowing into the battery connection section 806.

[0141] Next, a temperature regulating container 900, which is an example of an electrical device according to a ninth embodiment of the present invention, will be described with reference to Fig. 22. The same members and configurations as those of the temperature regulating containers according to the above-mentioned embodiments are given the same reference numerals and their explanations will be omitted, and only the different configurations will be described. Fig. 22 is a partial cross-sectional front view showing the inside of the temperature regulating container 900.

[0142] As shown in Fig. 22, the temperature control container 900 includes a storage section 902, an opening / closing lid 903, and a battery connection section 906 provided on the upper surface of the opening / closing lid 903. A through hole 902d penetrating in the left-right direction is formed in the approximate center in the up-down direction of the left wall section 21D of the storage section 902, and a heat exchange section 4 is disposed in the through hole 902d. To the right of the heat exchange section 4, a first fan section 5 is provided on the right side surface of the left wall section 21D, and to the left of the heat exchange section 4, a second fan section 7 is provided on the left side surface of the left wall section 21D. A control board section 8 is provided below the second fan section 7 on the left side surface of the left wall section 21D.

[0143] Further, a cover portion 910 is provided on the left side surface of the left wall portion 21D, which covers the second fan unit 7 and the control board unit 8. Within the cover portion 910, a fan accommodating space 910a in which the second fan unit 7 is accommodated, and a board accommodating portion 910b in which the control board unit 8 is accommodated are defined.

[0144] Thus, in the temperature regulating container 800, which is an example of an electric device according to the ninth embodiment of the present invention, the battery connector 906 is provided on the upper surface of the opening / closing lid 903, so that the battery pack P can be easily connected to the battery connector 906. Also, the storage space 2b can be made wider. Also, the opening / closing lid 3 can be made lighter, making it easier to open and close the opening / closing lid 3.

[0145] The electrical device according to the present invention is not limited to the above-mentioned embodiment, and various modifications are possible within the scope of the gist of the invention described in the claims. For example, the above-mentioned embodiment has been described taking the temperature regulating container 1 as an example, but the present invention is not limited to this, and can be applied to a temperature regulating container that only performs cooling or only heating, or an electrical device such as a radio that has a storage space that does not require temperature regulation and is powered by a battery pack. [Explanation of symbols]

[0146] 1, 200, 300, 400, 500, 600, 700, 800, 900...Temperature control container 2, 702, 802, 902...Accommodation section 2a...Opening 2b...Accommodation space 3, 703, 803, 903...Opening and closing cover section 3a, 603a, 702a, 802a...Battery accommodation space 3A, 203A...Battery cover 3b, 503c, 603b, 703b, 803b, 910a...Fan accommodation space 3c, 603c, 802c, 703c...Board accommodation space 3C...External power supply connection section 3N...Temperature detection element 4...Heat exchange section 5...First fan section 6, 206, 306, 606, 706, 806, 906...Battery connection section 7...Second fan section 8...Control board section 21...Peripheral wall portion 22...Floor wall portion 31...Lid floor wall portion 41...Peltier element 61, 261...Connection terminal portion 81...Control board 82...Power supply circuit 82C...Charging circuit 84...Control portion 311...First floor portion 312...Second floor portion 313...Inclined floor portion 503a...First battery accommodating space 503b...Second battery accommodating space L1...Separation distance L2...Separation distance L3...Separation distance L4...Separation distance

Claims

1. A storage section that forms a storage space; A heat exchanger that changes the temperature of the accommodation space; a battery connection section to which a battery pack can be detachably attached, the battery connection section having a terminal connection section including a plurality of terminals connectable to a plurality of terminals of the battery pack; a charging circuit for charging the battery pack connected to the battery connector; a first power supply circuit that supplies power of the battery pack to the heat exchange unit; an external power supply connection section connected to the charging circuit and to which an external vehicle battery can be connected; A control unit that controls the charging circuit and the first power supply circuit. the charging circuit is provided in the accommodation portion, has one end connected to the terminal connection portion and the other end connected to the external power supply connection portion, and is configured to boost a voltage of the in-vehicle battery connected to the external power supply connection portion and supply the boosted voltage to the battery pack via the terminal connection portion; the charging circuit is configured to be able to supply power from a commercial power source; the heat exchange unit is configured to operate using power from any one of the battery pack, the commercial power source, and the vehicle battery; the first power supply circuit is configured to step down a voltage of the battery pack and apply the stepped down voltage to the heat exchange unit; The first power supply circuit includes: connected to the terminal connection portion, the external power supply connection portion and the heat exchange portion, When the battery pack is connected to the terminal connection portion, power of the battery pack is supplied to the heat exchange portion via the terminal connection portion; When the battery pack is not connected to the terminal connection portion and the vehicle-mounted battery is connected to the external power supply connection portion, power of the vehicle-mounted battery is supplied to the heat exchange portion via the external power supply connection portion, the control unit is connected to the battery connection unit, the external power supply connection unit, the charging circuit, and the first power supply circuit, and is configured to be connected to the battery pack via the battery connection unit when the battery pack is connected to the battery connection unit and to control charging of the battery pack by the charging circuit; the control unit is configured to control the charging circuit and the first power supply circuit so as to change at least one of a state of power supplied to the heat exchange unit and a state of power supplied to the battery pack in accordance with a state of any one of the battery pack, the in-vehicle battery, and the commercial power supply; The control unit is When the vehicle battery is connected to the external power supply connection portion and the battery pack is not connected to the terminal connection portion, power is supplied to the first power supply circuit without supplying power to the charging circuit; When the vehicle battery is connected to the external power supply connection portion and the battery pack is connected to the terminal connection portion, and the battery pack is in a fully charged state, power is supplied to the first power supply circuit without supplying power to the charging circuit; An electrical device configured to supply power to the charging circuit and the first power supply circuit when the vehicle battery is connected to the external power supply connection portion and the battery pack is connected to the terminal connection portion and it is necessary to charge the battery pack.

2. 2. The electrical device according to claim 1 , the first power supply circuit is configured to be able to supply power from the vehicle-mounted battery to the heat exchange unit, An electrical device characterized in that the heat exchanger is driven by a voltage that operates without increasing or decreasing the voltage of the vehicle battery.

3. 3. The electrical device according to claim 1, The first power supply circuit is configured to supply power from the vehicle battery to the heat exchanger.

4. 4. An electrical device according to claim 1, a battery accommodating portion capable of accommodating the battery pack in a state connected to the battery connecting portion.

5. A storage section that forms a storage space; A heat exchanger that changes the temperature of the accommodation space; a battery connection section to which a battery pack can be detachably attached, the battery connection section having a terminal connection section including a plurality of terminals connectable to a positive terminal, a negative terminal and a temperature signal output terminal of the battery pack; a battery accommodating portion capable of accommodating the battery pack in a state connected to the battery connecting portion; a charging circuit for charging the battery pack connected to the battery connector; a first power supply circuit that supplies power of the battery pack to the heat exchange unit; an external power supply connection section connected to the charging circuit and to which an external vehicle battery can be connected; A control unit that controls the charging circuit and the first power supply circuit. the charging circuit is provided in the accommodation portion, has one end connected to the terminal connection portion and the other end connected to the external power supply connection portion, and is configured to boost a voltage of the in-vehicle battery connected to the external power supply connection portion and supply the boosted voltage to the battery pack via the terminal connection portion; the charging circuit is configured to be able to supply power from a commercial power source; the heat exchange unit is configured to operate using power from any one of the battery pack, the commercial power source, and the vehicle battery; The first power supply circuit includes: connected to the battery connection portion, the external power supply connection portion and the heat exchange portion, When the battery pack is attached to the battery connection section, power of the battery pack is supplied to the heat exchange section via the battery connection section; When the battery pack is not attached to the battery connection portion and the vehicle-mounted battery is connected to the external power supply connection portion, power of the vehicle-mounted battery is supplied to the heat exchange portion via the external power supply connection portion, the control unit is connected to the battery connection unit, the external power supply connection unit, the charging circuit, and the first power supply circuit, and is configured to be connected to the temperature signal output terminal of the battery pack via the battery connection unit when the battery pack is connected to the battery connection unit, to monitor the temperature of the battery pack, and to control charging of the battery pack by the charging circuit; the control unit is configured to control the charging circuit and the first power supply circuit so as to change at least one of a state of power supplied to the heat exchange unit and a state of power supplied to the battery pack in accordance with a state of any one of the battery pack, the in-vehicle battery, and the commercial power supply; The control unit is When the vehicle battery is connected to the external power supply connection portion and the battery pack is not connected to the terminal connection portion, power is supplied to the first power supply circuit without supplying power to the charging circuit; When the vehicle battery is connected to the external power supply connection portion and the battery pack is connected to the terminal connection portion, and the battery pack is in a fully charged state, power is supplied to the first power supply circuit without supplying power to the charging circuit; An electrical device configured to supply power to the charging circuit and the first power supply circuit when the vehicle battery is connected to the external power supply connection portion and the battery pack is connected to the terminal connection portion and it is necessary to charge the battery pack.

6. 6. The electrical device according to claim 5, The electrical device according to claim 1, wherein the charging circuit is configured to charge the battery pack using power from either the vehicle battery or the commercial power source when the battery pack is connected to the battery connection portion.

7. 6. The electrical device according to claim 4, The electrical device can be connected to the vehicle battery and the commercial power supply as external power sources, The control unit is configured to control the charging circuit and the first power supply circuit to change the state of at least one of the power supplied to the heat exchange unit and the power supplied to the battery pack, depending on whether the battery pack is connected or not, whether the in-vehicle battery is connected or not, or whether the commercial power source is connected or not.

8. 8. An electrical device according to claim 7, an external power source connected to the battery pack and a power supply circuit connected to the battery pack; and a control unit connected to the battery pack and configured to control the charging circuit and the first power supply circuit to change the power supplied to the heat exchange unit and the power supplied to the battery pack in accordance with a remaining charge of the battery pack connected to the battery connection unit.

9. 9. An electrical device according to claim 8, 2. An electrical device comprising: a heat exchanger that is connected to said battery pack and a charging circuit that supplies a larger amount of power to said heat exchanger than a charging circuit that supplies a larger amount of power to said battery pack when said battery pack is not fully charged.

10. 10. An electrical device according to claim 7, an electrical device comprising: a first power supply circuit configured to change the power supplied to the heat exchange unit in accordance with a temperature of the storage space when the external power supply is not connected and the battery pack is connected.

11. An electrical device according to any one of claims 7 to 10, The electric device according to claim 1, wherein the first power supply circuit is configured to be switchable between a plurality of modes in which the power supplied to the heat exchanger is different.

12. 12. The electrical device according to claim 11, The electrical device is characterized in that, when the external power source is connected and the battery pack is not connected or the battery pack is fully charged, the first power supply circuit is configured to supply the same power to the heat exchange unit regardless of the multiple modes.

13. 13. An electrical device according to any one of claims 4 to 12, A fan that dissipates heat from the heat exchange unit; and a through hole for communicating the fan with outside air.

14. 14. An electrical device according to claim 13, The electric device according to claim 1, wherein a fan housing chamber that houses the fan is not in communication with the battery housing portion.

15. 15. An electrical device according to any one of claims 1 to 14, the battery connection portion is configured to be connectable to battery packs of different voltages, The charging circuit is an electric device characterized in that it charges a battery pack by boosting a voltage from an on-board battery to a voltage appropriate for charging the battery pack connected to the battery connection portion.

16. A storage section forming a storage space; A heat exchanger that changes the temperature of the accommodation space; a battery connection section to which a battery pack can be detachably attached, the battery connection section having a terminal connection section including a plurality of terminals connectable to a plurality of terminals of the battery pack; a charging circuit for charging the battery pack connected to the battery connector; a first power supply circuit that supplies power of the battery pack to the heat exchange unit; an external power supply connection section connected to the charging circuit and to which an external vehicle battery can be connected; A control unit that controls the charging circuit and the first power supply circuit. the charging circuit is provided in the storage portion, has one end connected to the terminal connection portion and the other end connected to the external power supply connection portion, and is configured to boost the voltage of the in-vehicle battery connected to the external power supply connection portion and supply the boosted voltage to the battery pack via the terminal connection portion.

17. The electrical device according to claim 16, The first power supply circuit includes: connected to the terminal connection portion, the external power supply connection portion and the heat exchange portion, When the battery pack is connected to the terminal connection portion, power of the battery pack is supplied to the heat exchange portion via the terminal connection portion; An electrical device configured to supply power from the vehicle battery to the heat exchanger via the external power supply connection portion when the battery pack is not connected to the terminal connection portion and the vehicle battery is connected to the external power supply connection portion.

18. An electrical device as claimed in claim 16 or claim 17, The control unit is When the vehicle battery is connected to the external power supply connection portion and the battery pack is not connected to the terminal connection portion, power is supplied to the first power supply circuit without supplying power to the charging circuit; When the vehicle battery is connected to the external power supply connection portion and the battery pack is connected to the terminal connection portion, and the battery pack is in a fully charged state, power is supplied to the first power supply circuit without supplying power to the charging circuit; An electrical device configured to supply power to the charging circuit and the first power supply circuit when the vehicle battery is connected to the external power supply connection portion and the battery pack is connected to the terminal connection portion and it is necessary to charge the battery pack.

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