Button battery-shaped power supply

Abstract

To provide a power supply device capable of being stored for use in a battery chamber of an electric apparatus using a button battery without modifying a body of the electric apparatus, and controlling an output in a non-contact manner.SOLUTION: A power supply device having a housing formed in a shape of a predetermined button battery comprises: a negative terminal cup 1001, a positive terminal storage can 1002, an insulating gasket 1003, a non-contact power receiving unit 1004, a switching operation setting switch 1005, a power feeding mode control unit 1006, an output unit 1007, a charging control unit 1008 and a power storage unit 1009.SELECTED DRAWING: Figure 1

Description

【Technical Field】 【0001】 The present invention relates to a power supply device capable of non-contact control of a power supply mode, and particularly to a button battery-shaped power supply device that is housed in a battery chamber of an electric device powered by a button battery and serves as a switch for operating the operation mode of the electric device. Here, the power supply mode of power supply includes a power supply on mode for maintaining power supply and a power supply off mode for stopping power supply. Here, the operation mode of the electric device includes a function on mode in which the power supply required for the electric device is supplied and the function of the electric device can be exhibited, and a function off mode in which the required power supply is cut off and the function of the electric device cannot be exhibited. Here, the term "button battery" is a general term that is distinguished from a large and slender ordinary dry battery, is extremely small in size, round, thin, and includes coin batteries, bean batteries, etc. 【Background Art】 【0002】 In electric devices that consume little power, such as smart keys and wireless tags, and require power independently of an external power source, button batteries are often adopted as the power source. Conventionally, many electric devices using button batteries do not have a power switch, and there has been a demand for a function to control the operation mode from the outside from the viewpoints of power saving and prevention of unauthorized use. 【0003】 Patent Document 1 describes a power receiving unit having a secondary coil and a power receiving circuit that has a button battery shape and can be stored in a storage portion previously formed in a portable device. It is a method of transmitting power by a non-contact power supply method to a power receiving unit having a button battery shape stored in the storage portion from a primary coil. The power receiving unit is a method of sending the received power to each element mounted on the substrate of the portable device, and is a technology in which the operation mode of the portable device is switched according to the presence or absence of power reception. The technology described here has a problem in that even if power transmission via the contactless power supply method stops, the device remains in an "on" mode for a certain period of time, allowing it to function using the power remaining in the receiving circuit. 【0004】 Patent Document 2 describes a smart key device which is an electrical device comprising a transmitting unit that operates using power supplied from a battery, and a shut-off operation means for shutting off the power supply from the battery to the transmitting unit. This method involves adding a new disconnection mechanism that is not present in existing smart key devices. However, applying this to existing smart key-like electrical devices would require modifications to the battery compartment, which presented a problem. [Prior art documents] [Patent Documents] 【0005】 [Patent Document 1] Japanese Patent Publication No. 2021-163224 【0006】 [Patent Document 2] Japanese Patent Publication No. 2020-172760 [Overview of the Initiative] [Problems that the invention aims to solve] 【0007】 The object of the present invention is to provide a power supply device that can be used by being housed in the battery compartment of an electrical device that uses a button battery without modifying the main body of the electrical device, and that can control the output without contact. [Means for solving the problem] 【0008】 In a first aspect of the present invention, a power supply device comprising a housing formed in the shape of a button battery used in an electrical device to be operated, and having terminals provided at positions corresponding to the terminals of the button battery, The aforementioned power supply unit has the following functional components: a) A non-contact power receiving unit that receives power from a non-contact power supply device placed in close proximity to the electrical equipment, b) An output unit that supplies power to the terminal at a voltage equivalent to that of the button battery, c) A power storage unit that stores part or all of the power related to the power reception, d) A power supply mode control unit that receives part or all of the power related to the power reception and sends an output control signal to the output unit to determine whether the power supply mode of the power supply is set to power supply ON mode or power supply OFF mode, depending on whether the input exceeds a predetermined power level. The functional component is housed in the casing, The provided power supply device is characterized in that the output unit operates by switching, depending on the type of output control signal transmission, to either turn on the output to the terminal as the power supply ON mode operation and use part or all of the power stored in the power storage unit to maintain the power supply, or to turn off the output to the terminal as the power supply OFF mode operation and stop the power supply, thereby controlling the operating mode of the electrical equipment that uses the power supply device instead of the button battery. 【0009】 A second aspect of the present invention is a power supply device comprising a housing formed in the shape of a button battery used in an electrical device to be operated, and having terminals provided at positions corresponding to the terminals of the button battery, The aforementioned power supply unit has the following functional components: a) A non-contact power receiving unit that receives power from a non-contact power supply device placed in close proximity to the electrical equipment, b) An output unit that supplies power to the terminal at a voltage equivalent to that of the button battery, c) A power supply mode control unit that receives part or all of the power related to the power reception and transmits an output control signal to the output unit when the input exceeds a predetermined power level, The functional component is housed in the casing, The provided power supply device is characterized in that, when the output unit transmits the output control signal, it operates in a power supply ON mode by turning on the output to the terminals related to the power supply and converting part or all of the power received by the non-contact power receiving unit into the voltage to maintain the power supply, and when the output control signal is not transmitted, it operates in a power supply OFF mode by turning off the output to the terminals to stop the power supply and cutting off the remaining power of the non-contact power receiving unit, thereby controlling the operating mode of the electrical equipment that uses the power supply device instead of the button battery. 【0010】 From a third perspective, a power supply device comprising a housing formed in the shape of a button battery used in the electrical equipment to be operated, and having terminals provided at positions corresponding to the terminals of the button battery, The aforementioned power supply unit has the following functional components: a) A non-contact power receiving unit that receives power from a non-contact power supply device placed in close proximity to the electrical equipment, b) An output unit that supplies power to the terminal at a voltage equivalent to that of the button battery, c) A power storage unit that stores part or all of the power related to the power reception, d) A power supply mode control unit that, upon receiving part or all of the power related to the power reception, transmits an output control signal to set the power supply mode of the output unit to power supply off mode when the input exceeds a predetermined power level, The functional component is housed in the casing, The provided power supply device is characterized in that the output unit operates in a power supply ON mode, which maintains the power supply by turning on the output to the terminals related to the power supply and using part or all of the power stored in the power storage unit when there is no transmission of an output control signal to change the power supply mode to the power supply OFF mode, and operates in a power supply OFF mode, which stops the power supply by turning off the output to the terminals when there is a transmission of an output control signal to change the power supply mode to the power supply OFF mode, thereby operating the operating mode of the electrical equipment that uses the power supply device instead of the button battery. [Brief explanation of the drawing] 【0011】 [Figure 1] Figure 1 is a block diagram showing each component of the power supply device in this embodiment. [Figure 2] Figure 2 is a schematic diagram showing a mode of operating an electrical device using the power supply device of this embodiment. [Figure 3] Figure 3 is a table showing the relationship between the types of settings set by the switching operation setting switch of this embodiment and the operation modes of the electrical device. [Figure 4] Figure 4 is a flowchart showing a mode of operating the operation of an electrical device by the power supply device in Setting A of this embodiment. [Figure 5] Figure 5 is a flowchart showing a mode of operating the operation of an electrical device by the power supply device in Setting B of this embodiment. [Figure 6] Figure 6 is a block diagram showing the power supply device of this embodiment. [Figure 7] Figure 7 is a schematic diagram showing a mode of operating a smart key, which is an electrical device using the power supply device of this embodiment. [Figure 8] Figure 8 is a flowchart showing the operation of the operation mode of the smart key by the power supply device of this embodiment and its use in a shared car. [Figure 9] Figure 9 is a block diagram showing each component of the power supply device in this embodiment. [Figure 10] Figure 10 is a schematic diagram showing a mode of operating a smart key, which is an electrical device using the power supply device of this embodiment. [Figure 11] Figure 11 is a flowchart showing a mode of operating the operation mode of the smart key by the power supply device of this embodiment. 【Embodiments for Carrying Out the Invention】 【0012】 (Description of Embodiments of the Present Disclosure) First, the embodiments of the present disclosure are listed, and then more specific examples will be described while referring to the drawings. At least a part of the embodiments described below may be arbitrarily combined. This disclosure is not limited to these examples, but is intended to include all modifications within the meaning and scope of the claims as shown, and equivalents thereof. 【0013】 A power supply device according to one embodiment of the present disclosure is a power supply device comprising a housing formed in the shape of a button battery used in an electrical device to be operated, and having terminals provided at positions corresponding to the terminals of the button battery, The aforementioned power supply unit has the following functional components: a) A non-contact power receiving unit that receives power from a non-contact power supply device placed in close proximity to the electrical equipment, b) An output unit that supplies power to the terminal at a voltage equivalent to that of the button battery, c) A power storage unit that stores part or all of the power related to the power reception, d) A power supply mode control unit that receives part or all of the power related to the power reception and sends an output control signal to the output unit to determine whether the power supply mode of the power supply is set to power supply ON mode or power supply OFF mode, depending on whether the input exceeds a predetermined power level. The functional component is housed in the casing, The output unit operates by switching between, depending on the type of output control signal transmission, either turning on the output to the terminal as the power supply ON mode operation to maintain the power supply by using part or all of the power stored in the power storage unit, or turning off the output to the terminal as the power supply OFF mode operation to stop the power supply, thereby controlling the operating mode of the electrical equipment that uses the power supply device instead of the button battery. 【0014】 In this embodiment, a switching operation setting switch may be further provided to set which power supply mode to switch to depending on whether the input exceeds a predetermined power level. 【0015】 In this embodiment, when the output unit operates in the power supply off mode, it may turn off the output to the terminal to stop the power supply and also cut off the remaining power of the non-contact power receiving unit. 【0016】 A power supply device according to one embodiment of the present disclosure is a power supply device comprising a housing formed in the shape of a button battery used in an electrical device to be operated, and having terminals provided at positions corresponding to the terminals of the button battery, The aforementioned power supply unit has the following functional components: a) A non-contact power receiving unit that receives power from a non-contact power supply device placed in close proximity to the electrical equipment, b) An output unit that supplies power to the terminal at a voltage equivalent to that of the button battery, c) A power supply mode control unit that receives part or all of the power related to the power reception and transmits an output control signal to the output unit when the input exceeds a predetermined power level, The functional component is housed in the casing, The output unit operates in a power supply ON mode when the output control signal is transmitted, turning on the output to the terminals related to the power supply and converting part or all of the power received by the contactless power receiving unit into the voltage to maintain the power supply, and operates in a power supply OFF mode when the control signal is not transmitted, turning off the output to the terminals to stop the power supply and cutting off the remaining power of the contactless power receiving unit, thereby controlling the operating mode of the electrical equipment that uses the power supply device instead of the button battery. 【0017】 A power supply device according to one embodiment of the present disclosure is a power supply device comprising a housing formed in the shape of a button battery used in an electrical device to be operated, and having terminals provided at positions corresponding to the terminals of the button battery, The aforementioned power supply unit has the following functional components: a) A non-contact power receiving unit that receives power from a non-contact power supply device placed in close proximity to the electrical equipment, b) An output unit that supplies power to the terminal at a voltage equivalent to that of the button battery, c) A power storage unit that stores part or all of the power related to the power reception, d) A power supply mode control unit that receives part or all of the power related to the power reception and, when the input exceeds a predetermined power level, transmits an output control signal to set the power supply mode of the power supply to the power supply off mode, The functional component is housed in the casing, The output unit operates in a power supply ON mode when no output control signal is transmitted to change the power supply mode to power supply OFF mode, turning on the output to the terminals related to the power supply and using part or all of the power stored in the power storage unit to maintain the power supply, and operates in a power supply OFF mode when an output control signal is transmitted to change the power supply mode to power supply OFF mode, turning off the output to the terminals and stopping the power supply, thereby controlling the operating mode of the electrical equipment that uses the power supply device instead of the button battery. [Examples] 【0018】 Figure 1 is a block diagram showing the various components of the power supply unit in this embodiment. The power supply unit 1000 consists of a cover 1001 with a negative terminal 1010, a storage unit 1002 with a positive terminal 1011, an insulating gasket 1003, a non-contact power receiving unit 1004, a changeover operation setting switch 1005, a power supply mode control unit 1006, an output unit 1007, a charging control unit 1008, and a power storage unit 1009. The thick arrows connecting the blocks indicate power lines and are used for power supply. The thin arrows connecting the blocks indicate electrical signal lines and transmit minute power such as sensing information and control signals. The arrows indicate the direction of transmission of minute power and power supply. Here, the contactless power receiving unit 1004 is provided along the bottom surface of the storage unit 1002, but the arrangement of the contactless power receiving unit in the present invention is not limited to this. For example, it may be provided on the open surface of the storage unit 1002 along the lid 1001. 【0019】 The lid 1001 is made by molding a magnetic field-permeable resin into a disc shape. The storage compartment 1002 is made by molding a magnetic field-permeable resin into a cylindrical shape with one bottom surface open. The open surface of the cylindrical resin storage compartment 1002 is closed by the disc-shaped resin lid 1001. The joint between them is insulated by an insulating gasket 1003, and the device is formed to create a housing shaped like a button battery used in electrical equipment that is operated by the power supply. Here, a lid and storage compartment molded from resin are used as components of the housing, but the materials and component configuration of the housing of the present invention are not limited to these. Any material that conducts a magnetic field and is molded to form the shape of a button battery used in the electrical device to be operated is acceptable. 【0020】 The lid portion 1001 has a metal terminal 1010 located at its center, forming a negative terminal. The storage portion 1002 has a metal terminal 1011 on its outer circumference, forming a positive terminal. These constitute the terminals for supplying power to the outside of the power supply unit. The method of providing the terminals of the present invention is not limited to this, and it is sufficient that they are provided at positions corresponding to the contacts of the battery compartment of the electrical machine being operated. With this configuration, the power supply unit is housed in the battery compartment of the electrical device and can supply power in place of a button battery. 【0021】 The non-contact power receiving unit 1004 is equipped with a secondary coil for receiving power and is configured to receive power by electromagnetic induction from a non-contact power supply device equipped with a predetermined primary coil. In this embodiment, an electromagnetic induction method was adopted as an example of a contactless power supply / reception method, but it is not limited to this, and for example, a magnetic resonance method may also be used. 【0022】 The power supply mode control unit 1006 receives input of part or all of the power related to power reception from the electrical signal line, which is the sensor line of the non-contact power receiving unit indicated by the thin arrow L, and sends an output control signal to the output unit 1007 to command whether to set the power supply mode to power supply ON mode or power supply OFF mode, depending on whether the input exceeds a predetermined power level. The switching operation setting switch 1005 is a switch that sets whether the power supply mode control unit 1006 sends an output control signal for a command to select a power supply mode based on whether the input exceeds a predetermined power level, after receiving part or all of the power related to the power supply. The user can set it to setting A or setting B by sliding the switch. Here, a slide switch is used as the switch because it can be operated manually by the user and requires a small space. However, it is not limited to this, and any switch that can be operated manually by the user and requires a small space can be used as appropriate. 【0023】 When the output unit 1007 receives an output control signal of the type assigned to the power supply ON mode command, it operates in an output ON state, maintaining a power supply of a voltage equivalent to that of a button battery using the power stored in the power storage unit 1009. When the output control signal of the type assigned to the power supply OFF mode command is received, it operates in an output OFF state, stopping the power supply and cutting off the remaining power of the contactless power receiving unit. 【0024】 The charging control unit 1008 receives power from the power line indicated by the thick arrow P, which is received by the contactless power receiving unit, and controls the voltage, current, etc. related to charging the energy storage unit 1009. 【0025】 The power storage unit 1009 is designed to receive power controlled by the charging control unit and be charged at any time, regardless of whether or not power is being supplied to the output unit 1007, when power is being received by the contactless power receiving unit. The thin arrow S is an electronic signal line that supplies the minute amount of power necessary for the control operation of the power supply mode control unit 1006. 【0026】 Figure 2 is a schematic diagram showing how to operate electrical equipment using the power supply unit of this embodiment. An electrical device 2001 that houses a button-cell shaped power supply 1000 in a battery compartment 2002, It operates as a system consisting of an electrical equipment holder 2003 that holds electrical equipment. Here, the electrical device 2001 uses power output from the power supply unit 1000, which is housed in a battery compartment instead of a button battery, to perform functions that are activated by user operation or functions that are activated automatically. The electrical equipment holder 2003 includes a DC power input unit 2004, a power switch 2005, an AC converter 2006, and a contactless power supply device 2007. Here, the power switch 2005 is provided so that when an electrical device is placed inside, its weight causes the power to turn on and contactless power supply to begin. However, the electrical device holder of the present invention may also be designed to always be powered on without a power switch. Alternatively, a different type of power switch may be used. In any case, it is sufficient to provide a system that ensures contactless power supply is always available when an electrical device is placed inside the electrical device holder. Here, the non-contact power supply device 2007 is equipped with a primary coil and is positioned close to the power supply unit 1000 of the electrical equipment housed in the electrical equipment holder, so as to be able to supply power to its non-contact power receiving unit 1004 by electromagnetic induction. 【0027】 Figure 3 is a table showing the relationship between the type of setting set by the switching operation setting switch in this embodiment and the operating mode of the electrical equipment. In the following description, "when contactless power reception is present" or "during power reception" refers to a state in which part or all of the power related to contactless power reception input to the power supply mode control unit exceeds a predetermined power. In setting A3001, when contactless power reception is present, the power supply of the power supply unit is set to the power supply off mode, as shown in 3003. In this setting, if contactless power reception is present, the operating mode of the electrical equipment becomes the function off mode. In setting A, if there is no contactless power reception, the power supply of the power supply unit is set to the power supply on mode, as shown in 3004. In this setting A, if contactless power reception is present, the operating mode of the electrical equipment becomes the function on mode. Here, since the power supply unit uses the power stored in the power storage unit 1009 to supply power to the electrical equipment, it can be set to operate in the power supply on mode even when there is no contactless power reception. 【0028】 On the other hand, in setting B3002, if contactless power reception is available, the power supply of the power unit is set to power-on mode, as shown in 3005. In this setting, if contactless power reception is available, the electrical equipment will be in function-on mode. In setting B, if contactless power reception is not available, the power supply of the power unit is set to power-off mode, as shown in 3006. In this setting B, if contactless power reception is not available, the electrical equipment will be in function-off mode. 【0029】 Figure 4 is a flowchart illustrating how the power supply unit controls the operation of electrical equipment in setting A of this embodiment. Here, we will explain using the case where the electrical equipment to be controlled is a vehicle's smart key as an example. 【0030】 In the storage standby state 4001, a smart key containing a power supply unit that has been switched to setting A by the user is stored in the electrical equipment holder. In this state, the contactless power receiving unit 1004 of the power supply unit receives contactless power from the contactless power supply device 2007 provided in the electrical equipment holder. The power supply mode control unit 1006, which detects that power is being received, transmits an output control signal for power supply off mode to the output unit 1007, causing the output unit to turn off, and the power supply mode of the power supply unit to be power supply off mode. In this state, the smart key operates in function off mode, so not only are functions such as door unlocking / locking by button operation by the user stopped, but the automatic activation function of transmitting authentication radio waves is also stopped. By leaving the smart key in the storage standby state, it is possible to prevent relay attacks, which are fraudulent uses that relay authentication radio waves to steal vehicles. 【0031】 In the removal step 4002, the smart key is removed from the electrical device holder by the user. 【0032】 In step 4003, the contactless power supply to the power supply unit stored in the removed smart key is stopped. 【0033】 In output on-step 4004, the power supply mode control unit 1006, having detected that power reception has stopped, transmits an output control signal to the output unit 1007 to enable power supply mode, causing the output unit to turn on. As a result, the power supply mode of the power supply device transitions to the power supply on mode, and power supply to the electrical equipment begins. 【0034】 In usage step 4005, the smart key, having received power from the power supply unit, enters the function-on mode and becomes usable. This allows the user to operate the smart key to unlock / lock the vehicle doors, and also enables the automatic transmission of authentication radio waves, allowing the engine to start and the vehicle to be used. 【0035】 In storage step 4006, when the vehicle is no longer in use, the user stores the smart key in the electrical equipment holder. 【0036】 In the contactless power reception start step 4007, the contactless power receiving unit 1004 of the power supply unit starts contactless power reception from the contactless power supply device 2007 provided in the electrical equipment holder. 【0037】 In the output off-step 4008, the power supply mode control unit 1006, which has detected that power is being received, sends an output control signal for power off mode to the output unit 1007, and the output unit turns off. 【0038】 In the residual power cut-off step 4009, the output unit is turned off, which stops the power supply, including the output of the residual power from the contactless power receiving unit, and the power supply mode of the power supply device transitions to the power supply off mode. As a result, the operating mode of the electrical equipment transitions to the function off mode and returns to the storage standby state 4001. 【0039】 Figure 5 is a flowchart illustrating how the power supply unit controls the operation of electrical equipment in setting B of this embodiment. 【0040】 In the retrieval standby state 5001, the electrical equipment containing the power supply unit, which has been switched to setting B by the user in advance, is in a state where it has been removed from the electrical equipment holder. In this state, contactless power reception at the contactless power receiving unit 1004 of the power supply unit is stopped. The power supply mode control unit 1006, which detects that power reception is stopped, transmits an output control signal for power supply off mode to the output unit 1007, the output unit turns off, and the power supply mode of the power supply unit becomes power supply off mode. 【0041】 In storage step 5002, the user stores the electrical equipment in the electrical equipment holder. 【0042】 In the contactless power reception initiation step 5003, contactless power reception is initiated for the power supply unit stored in the stored electrical equipment. 【0043】 In output on-step 5004, the power supply mode control unit 1006, having detected that power is being received, transmits an output control signal for power supply ON mode to the output unit 1007, causing the output unit to turn on. As a result, the power supply mode of the power supply device transitions to power supply ON mode, and power supply to the electrical equipment begins. 【0044】 In usage step 5005, the electrical equipment, having received power from the power supply unit, enters a function-on mode and becomes available for use. This allows the user to operate and use the electrical equipment, and also enables the automatically activated functions of the electrical equipment. At this point, the user's use takes place with the electrical equipment stored in the electrical equipment holder. 【0045】 In removal step 5006, the user removes the electrical equipment from the electrical equipment holder. 【0046】 In the non-contact power reception stop step 5007, the non-contact power receiving unit 1004 of the power supply unit moves away from the non-contact power supply device 2007 provided on the electrical equipment holder, making it impossible to receive non-contact power, and thus the non-contact power reception is stopped. 【0047】 In the output off-step 5008, the power supply mode control unit 1006, which detects that power reception has been stopped, transmits an output control signal for power off mode to the output unit 1007, and the output unit turns off. 【0048】 In the residual power cut-off step 5009, the output unit is turned off, which stops the power supply, including the output of the residual power from the contactless power receiving unit, and the power supply mode of the power supply device transitions to the power supply off mode. As a result, the operating mode of the electrical equipment transitions to the function off mode and returns to the extraction standby state 5001. 【0049】 In this way, the operation of removing and storing electrical equipment in the electrical equipment holder allows for switching the operating mode of the electrical equipment on and off. Even if the electrical equipment does not have a power switch, it is possible to switch the operating mode on and off in the same way as with a power switch. 【0050】 In addition to switching the operating mode on / off by the action of taking the device out of / putting it into the electrical device holder, if the electrical device holder is equipped with a remote control function, the operating mode of the electrical device can be indirectly controlled remotely if the power supply unit, which has been switched to setting B, is stored in an electrical device holder equipped with a wireless or other remote control function and placed inside the car. By combining this with a separate remote control device that presses the door unlock / lock button on the smart key, it is possible to easily build a car-sharing system in which the doors can be unlocked remotely from outside the vehicle. [Examples] 【0051】 Figure 6 is a block diagram showing the power supply unit 6000 of this embodiment. The power supply unit 6000 consists of a cover 6001 with a negative terminal 6007, a housing 6002 with a positive terminal 6008, an insulating gasket 6003, a non-contact power receiving unit 6004, a power supply mode control unit 6005, and an output unit 6006. The thick arrows connecting the blocks indicate power lines and are used for power supply. The thin arrows connecting the blocks indicate electrical signal lines and transmit sensing information and control signals. The arrows indicate the direction of transmission of electrical signals and power. Here, the contactless power receiving unit 6004 is provided along the bottom surface of the storage unit 6002, but the arrangement of the contactless power receiving unit in the present invention is not limited to this. For example, it may be provided on the open surface of the storage unit 6002 along the lid 6001. 【0052】 The lid 6001 is made by molding a magnetic field-permeable resin into a disc shape. The storage compartment 6002 is made by molding a magnetic field-permeable resin into a cylindrical shape with one bottom surface open. The open surface of the cylindrical resin storage compartment 6002 is insulated by the disc-shaped resin lid 6001, with the joint insulated by an insulating gasket 6003, forming a housing in the shape of a button battery used in electrical equipment that is the target of the power supply device's operation. Here, a lid and storage compartment molded from resin are used as components of the housing, but the materials and component configuration of the housing of the present invention are not limited to these. Any material that conducts a magnetic field and is molded to form the shape of a button battery used in the electrical device to be operated is acceptable. The lid portion 6001 has a metal terminal 6007 located at its center, forming a negative terminal. The storage portion 6002 has a metal terminal 6008 on its outer circumference, forming a positive terminal. These constitute the terminals for supplying power to the outside of the power supply unit. The method of providing the terminals of the present invention is not limited to this, and it is sufficient that they are provided at positions corresponding to the contacts of the battery compartment of the electrical machine being operated. With this configuration, the power supply unit is housed in the battery compartment of the electrical device and can supply power in place of a button battery. 【0053】 The non-contact power receiving unit 6004 is equipped with a secondary coil for receiving power and is configured to receive power by electromagnetic induction from a non-contact power supply device equipped with a predetermined primary coil. The thin arrow line L connecting to the power supply mode control unit 6005 is a sensor line that transmits the power receiving status. The thick arrow line P connecting to the output unit 6006 is a power line. In this embodiment, an electromagnetic induction method was adopted as an example of a contactless power supply / reception method, but it is not limited to this, and for example, a magnetic resonance method may also be used. 【0054】 The power supply mode control unit 6005 receives input of part or all of the power related to power reception from the electrical signal line, which is the sensor line of the non-contact power receiving unit indicated by the thin arrow L, and transmits an output control signal to the output unit 6006 depending on whether the input exceeds a predetermined power level. 【0055】 When the output control signal is received, the output unit 6006 turns on the output to the terminal and receives part or all of the power received by the contactless power receiving unit from the power line indicated by the thick arrow P, converts it to a voltage equivalent to the button's ground, and operates in a power supply ON mode to maintain power supply. Furthermore, if no output control signal is received, the output unit operates in a power-off mode, turning off the output to the terminals, stopping the power supply, and shutting off any remaining power. 【0056】 Figure 7 is a schematic diagram showing how to operate a smart key, which is an electrical device using the power supply unit of this embodiment. The electrical device holder 7000 houses the smart key 7001 and is configured to be remotely operated by operation commands received by the communication unit 7012. 【0057】 The electrical equipment holder 7000 consists of a holder section 7002 for storing the smart key 7001 and a function operation section 7003. 【0058】 The holder section 7002 consists of a DC power supply 7006, a power switch 7007, a power supply section 7009, and a contactless power supply device 7010. The power switch 7007 is configured to turn on the power in response to a power supply start command received by the communication section 7012, and to turn off the power in response to a power supply stop command. 【0059】 The function operation unit 7003 is equipped with press-down devices 7011A and 7011B positioned to correspond to the function operation buttons 7004A and 7004B of the smart key 7001, and is configured to perform a press-down operation of the function operation buttons in response to a press-down operation command received by the communication unit 7012. When the power switch is turned on, the functions of the smart key are operated by remotely controlling the function operation buttons of the smart key via an operation command from the communication unit. 【0060】 The smart key 7001 is equipped with a door unlocking function button 7004A, a door locking function button 7004B, and a battery compartment 7005, and in operation-on mode, it performs the functions assigned to the function buttons and automatic activation functions. The battery compartment 7005 houses the power supply unit 6000. When housed in the electrical equipment holder 7000, the power supply unit 6000 is in close proximity to the contactless power supply device 7010 and can receive power via contactless connection. 【0061】 Here, the non-contact power supply device 7010 is equipped with a primary coil and is positioned close to the power supply unit 6000 of the electrical equipment housed in the electrical equipment holder, so as to be able to supply power to its secondary coil by electromagnetic induction. 【0062】 Figure 8 is a flowchart illustrating the operation mode of the smart key using the power supply unit in this embodiment and its use in a car-sharing service. Here, the electrical equipment holder is installed inside the vehicle used for the car-sharing service, holding the smart key containing the power supply unit. 【0063】 In standby state 8001, the smart key is held in the electrical equipment holder, but the switch 2007 of the electrical equipment holder is off, and the contactless power receiving unit 6004 of the power supply unit used for the smart key is not receiving power. Since no output control signal is transmitted from the power supply mode control unit 6005, the power supply mode of the output unit 6006 is the power supply off mode. In this standby state, the smart key cannot perform its functions. The smart key's operating mode is the function off mode, in which not only functions activated by the function operation buttons but also automatic activation functions such as continuously emitting authentication radio waves are not performed. 【0064】 In the contactless power reception start step 8002, when the power switch 7007 provided on the electrical equipment holder is turned on by the car share service provider via the communication unit 7012, the AC conversion unit 7008 converts the power from the DC power supply 7006 to AC and supplies power from the power supply unit 7009 to the contactless power supply device 7010. At this time, the contactless power receiving unit 6004 of the power supply device housed in the battery compartment of the smart key receives power. 【0065】 In output on-step 8003, the power supply mode control unit 6005, having detected that power is being received, transmits an output control signal to the output unit 6006. The output unit then turns on and operates in power supply on mode. As a result, the power supply mode of the power supply device transitions to power supply on mode, and power supply to the electrical equipment begins. 【0066】 In the initial use step 8004, the smart key, having received power from the power supply unit, switches to function-on mode and becomes usable. This allows the user to operate and use the electrical equipment, and also enables the automatically activated functions of the electrical equipment. At this point, the user's use is performed with the electrical equipment stored in the electrical equipment holder 7000. 【0067】 In usage step 8005, the user can remotely operate the functions of the smart key by pressing the function operation buttons 7004A and 7004B using the push-down parts 7011A and 7011B of the function operation unit 7003 via the communication unit 7012. The user unlocks the doors, starts the engine, and uses the vehicle by operating the function operation buttons. 【0068】 In the termination step 8006, the user parks the vehicle in the designated location, performs termination procedures such as locking the doors by operating the function buttons, and notifies the share service provider that the usage has ended. 【0069】 In the contactless power reception stop step 8007, if the car share service provider remotely turns off the power switch 7007 located on the holder via the communication unit 7012, the power supply from the DC power supply 7006 to the contactless power supply device 7010 stops, and the contactless power receiving unit 7004 of the power supply device also stops receiving power. 【0070】 During the output off-step 8008, the power supply mode control unit 6005 of the power supply unit stops transmitting output control signals, and the output section of the power supply unit turns off. 【0071】 In the residual power cut step 8009, the output unit turns off, stopping the power supply, including the output of residual power from the contactless power receiving unit, and the power supply mode of the power unit transitions to the power supply off mode. As a result, the smart key's operating mode transitions to the function off mode and returns to the standby state 8001. In the case of such a car-sharing service, residual power remains in the contactless power receiving unit for a certain period of time after the user has used the vehicle. If this residual power can be output, the smart key remains in the function on mode, the immobilizer system remains deactivated, and the engine continues to run, which is a problem. Cutting off the output of power, including this residual power, by turning off the output unit is important for vehicle security. 【0072】 The car-sharing service provider managing this vehicle can keep the smart key inside the vehicle and remotely control its operating mode as needed for service to users, eliminating the need to hand the smart key to users while the vehicle is in standby mode. Furthermore, since the vehicle's smart key can be used directly for the car-sharing service, modifications to the vehicle to remotely control door opening / closing and engine starting become unnecessary, allowing for the procurement of vehicles for the car-sharing service at a low cost. [Examples] 【0073】 This embodiment is a power supply unit that simplifies its configuration and operation by focusing on functions that are effective in building a system to prevent relay attacks, which are a problem in vehicle theft. 【0074】 Figure 9 is a block diagram showing the various components of the power supply unit in this embodiment. The power supply unit 9000 consists of a cover 9001 with a negative terminal 1010, a housing 9002 with a positive terminal 1011, an insulating gasket 9003, a non-contact power receiving unit 9004, a power supply mode control unit 9005, an output unit 9006, a charging control unit 9007, and a power storage unit 9008. The thick arrows connecting the blocks indicate power lines and are used for power supply. The thin arrows connecting the blocks indicate electrical signal lines and transmit minute power such as sensing information and control signals. The arrows indicate the direction of transmission of minute power and power supply. Here, the contactless power receiving unit 1004 is provided along the bottom surface of the storage unit 1002, but the arrangement of the contactless power receiving unit in the present invention is not limited to this. For example, it may be provided on the open surface of the storage unit 1002 along the lid 1001. 【0075】 The lid 9001 is made by molding a magnetic field-permeable resin into a disc shape. The storage compartment 9002 is made by molding a magnetic field-permeable resin into a cylindrical shape with one bottom surface open. The open surface of the cylindrical resin storage compartment 9002 is closed by the disc-shaped resin lid 9001. The joint between them is insulated by an insulating gasket 9003, and the device is formed to create a housing shaped like a button battery used in electrical equipment that is operated by the power supply. Here, a lid and storage compartment molded from resin are used as components of the housing, but the materials and component configuration of the housing of the present invention are not limited to these. Any material that conducts a magnetic field and is molded to form the shape of a button battery used in the electrical device to be operated is acceptable. The lid portion 9001 has a metal terminal 9009 located at its center, forming a negative terminal. The storage portion 9002 has a metal terminal 9010 on its outer circumference, forming a positive terminal. These constitute the terminals for supplying power to the outside of the power supply unit. The method of providing the terminals of the present invention is not limited to this, and it is sufficient that they are provided at positions corresponding to the contacts of the battery compartment of the electrical machine being operated. With this configuration, the power supply unit can be housed in the battery compartment of the electrical device and can supply power in place of a button battery. 【0076】 The non-contact power receiving unit 9004 is equipped with a secondary coil for receiving power and is configured to receive power by electromagnetic induction from a non-contact power supply device equipped with a predetermined primary coil. In this embodiment, an electromagnetic induction method was adopted as an example of a contactless power supply / reception method, but it is not limited to this, and for example, a magnetic resonance method may also be used. 【0077】 The power supply mode control unit 9005 receives input of part or all of the power related to power reception from the electrical signal line, which is the sensor line of the non-contact power receiving unit indicated by the thin arrow L, and when the input exceeds a predetermined power level, it transmits an output control signal to the output unit 9006 to change the power supply mode by power supply to the power supply off mode. 【0078】 The output unit 9006 operates in an output-on state, maintaining a power supply at a voltage equivalent to that of a button battery using the power stored in the power storage unit 1009, unless an output control signal is transmitted to set the power supply mode to the power-off mode. If an output control signal is transmitted to set the power supply mode to the power-off mode, the output unit 9006 operates in an output-off state, stopping the power supply and cutting off the remaining power of the contactless power receiving unit. 【0079】 The charging control unit 9007 receives power from the power line indicated by the thick arrow P, which is received by the contactless power receiving unit, and controls the voltage, current, etc. related to charging the energy storage unit 9008. 【0080】 The power storage unit 9008 is designed to receive power controlled by the charging control unit and be charged at any time, regardless of whether or not power is being supplied to the output unit, when power is being received at the contactless power receiving unit. The thin arrow S is an electronic signal line that supplies the minute amount of power necessary for the control operation of the power supply mode control unit 9005. The thin arrow S represents a minute power 【0081】 Figure 10 is a schematic diagram showing how to operate a smart key, which is an electrical device using the power supply unit of this embodiment. The system operates as a unit comprising a smart key 10001 that houses a button-cell shaped power supply 9000 in a battery compartment 10002, and an electrical equipment holder 10003 that holds the smart key. Here, the smart key 10001 uses power output from the power supply unit 9000, which is housed in the battery compartment instead of a button battery, to perform functions that are activated by user operation or automatically activated. The electrical equipment holder 10003 includes a DC power input unit 10004, a power switch 10005, an AC converter 10006, and a contactless power supply device 10007. Here, the contactless power supply device 10007 is equipped with a primary coil and is positioned close to the power supply unit 9000 of the smart key housed in the electrical equipment holder, and is configured to supply power to its contactless power receiving unit 9004 by electromagnetic induction. 【0082】 Figure 11 is a flowchart illustrating how to operate the smart key's operating mode using the power supply unit of this embodiment. In the following explanation, "when contactless power reception is present" or "during power reception" refers to a state in which part or all of the power related to contactless power reception input to the power supply mode control unit exceeds a predetermined power level. 【0083】 In the storage standby state 11001, the smart key containing the power supply unit is stored in the electrical equipment holder. In this state, the contactless power receiving unit 9004 of the power supply unit receives contactless power from the contactless power supply device 10007 provided in the electrical equipment holder. The power supply mode control unit 9005, which detects that power is being received, transmits an output control signal for the power supply off mode to the output unit 9006, causing the output unit to turn off, and the power supply mode of the power supply unit to be the power supply off mode. In this state, the smart key operates in off-function mode, meaning that not only are functions such as unlocking / locking the doors by pressing buttons disabled, but the automatic activation function of transmitting authentication radio waves is also stopped. By keeping the smart key in a storage standby state, you can prevent relay attacks that use authentication radio waves to steal vehicles. 【0084】 In the removal step 11002, the smart key is removed from the electrical device holder by the user. 【0085】 In step 11003, the contactless power supply of the power supply unit stored in the removed smart key is stopped. 【0086】 In output on-step 11004, the power supply mode control unit 9005, having detected that power reception has stopped, stops transmitting the output control signal for power supply off mode to the output unit 9006 and transmits the output control signal for power supply on mode. As a result, the output unit turns on, the power supply mode of the power supply device transitions to power supply on mode, and power supply to the smart key begins. 【0087】 In usage step 11005, the smart key, having received power from the power supply unit, enters the function-on mode and becomes usable. This allows the user to operate the smart key to unlock / lock the vehicle doors, and also enables the automatic transmission of authentication radio waves, allowing the engine to start and the vehicle to be used. 【0088】 In storage step 11006, when the vehicle is no longer in use, the user stores the smart key in the electrical device holder. 【0089】 In the contactless power reception start step 11007, the contactless power receiving unit 9004 of the power supply unit starts contactless power reception from the contactless power supply device 10007 provided in the electrical equipment holder. 【0090】 In the output off step 11008, the power supply mode control unit 9005, which has detected that power is being received, sends an output control signal for power off mode to the output unit 9006, and the output unit turns off. 【0091】 In the residual power cut-off step 11009, the output unit is turned off, which stops the power supply, including the output of the residual power from the contactless power receiving unit, and the power supply mode of the power supply device transitions to the power supply off mode. As a result, the smart key's operating mode transitions to the function-off mode, returning it to the storage standby state 11001. 【0092】 By using the power supply device described above with the smart key, it is possible to prevent relay attacks that use the authentication radio waves constantly emitted by the smart key when the vehicle is not in use to steal the vehicle. [Industrial applicability] 【0093】 This invention can be used in a wide range of industrial fields, including the manufacturing of electrical equipment, power supply equipment, the automotive industry, and the car-sharing service industry. [Explanation of Symbols] 【0094】 1001 Lid 1002 Storage compartment 1003 Insulating Gasket 1004 Contactless power receiving unit 1005 Switching operation setting switch 1006 Power supply mode control unit 1007 Output section 1008 Charging Control Unit 1009 Energy Storage Unit

Claims

[Claim 1] A power supply device comprising a housing formed in the shape of a button battery used in the electrical equipment to be operated, and having terminals provided at positions corresponding to the terminals of the button battery, The aforementioned power supply unit has the following functional components: a) A non-contact power receiving unit that receives power from a non-contact power supply device placed in close proximity to the electrical equipment, b) An output unit that supplies power to the terminal at a voltage equivalent to that of the button battery, c) A power storage unit that stores part or all of the power related to the power reception, d) A power supply mode control unit that receives part or all of the power related to the power reception and, depending on whether the input exceeds a predetermined power level, sends an output control signal to the output unit to set the power supply mode to power supply ON mode or power supply OFF mode, The functional component is housed in the casing, A power supply device characterized in that the output unit operates by switching, depending on the type of output control signal transmission, to either turn on the output to the terminal as the power supply ON mode operation and use part or all of the power stored in the power storage unit to maintain the power supply, or to turn off the output to the terminal as the power supply OFF mode operation and stop the power supply, thereby operating the power supply device in place of the button battery. [Claim 2] The power supply device according to claim 1, further comprising a switching operation setting switch for setting which power supply mode to switch to depending on whether the input exceeds a predetermined power level. [Claim 3] The power supply device according to claim 1 or 2, characterized in that when the output unit operates in the power supply off mode, it turns off the output to the terminal to stop the power supply and cuts off the remaining power of the non-contact power receiving unit. [Claim 4] A power supply device comprising a housing formed in the shape of a button battery used in the electrical equipment to be operated, and having terminals provided at positions corresponding to the terminals of the button battery, The aforementioned power supply unit has the following functional components: a) A non-contact power receiving unit that receives power from a non-contact power supply device placed in close proximity to the electrical equipment, b) An output unit that supplies power to the terminal at a voltage equivalent to that of the button battery, c) A power supply mode control unit that receives part or all of the power related to the power reception and transmits an output control signal to the output unit when the input exceeds a predetermined power level, The functional component is housed in the casing, A power supply device characterized in that the output unit operates in a power supply ON mode, which, when an output control signal is transmitted, turns on the output to the terminals related to the power supply and converts part or all of the power received by the contactless power receiving unit into the voltage to maintain the power supply, and operates in a power supply OFF mode, which, when an output control signal is not transmitted, turns off the output to the terminals to stop the power supply and cuts off the remaining power of the contactless power receiving unit, thereby controlling the operating mode of the electrical equipment that uses the power supply device instead of the button battery. [Claim 5] A power supply device comprising a housing formed in the shape of a button battery used in the electrical equipment to be operated, and having terminals provided at positions corresponding to the terminals of the button battery, The aforementioned power supply unit has the following functional components: a) A non-contact power receiving unit that receives power from a non-contact power supply device placed in close proximity to the electrical equipment, b) An output unit that supplies power to the terminal at a voltage equivalent to that of the button battery, c) A power storage unit that stores part or all of the power related to the power reception, d) A power supply mode control unit that, upon receiving part or all of the power related to the power reception, transmits an output control signal to change the power supply mode of the power supply to the power supply off mode when the input exceeds a predetermined power level, The functional component is housed in the casing, A power supply device characterized in that the output unit operates in a power supply ON mode, which maintains the power supply by turning on the output to the terminals related to the power supply and using part or all of the power stored in the power storage unit when there is no transmission of an output control signal to change the power supply mode to the power supply OFF mode, and operates in a power supply OFF mode, which stops the power supply by turning off the output to the terminals when there is a transmission of an output control signal to change the power supply mode to the power supply OFF mode, thereby controlling the operating mode of the electrical equipment that uses the power supply device instead of the button battery.