KR102264901B1 - Apparatus for supplying power - Google Patents

Abstract

The present invention relates to a power supply device.
The present invention provides a power supply device for supplying electric power to an electric medical device, comprising: a battery capable of charging and discharging to supply electric power to the electric medical device; a display unit configured to display a charging state of the electric medical device receiving power from the battery; a power terminal including a power cable, a first charging terminal, and a second charging terminal to supply power to the power supply to charge the battery; a terminal part comprising a connection cable electrically connected to the electric medical device to charge the battery, an overload switch, a fuse, and an electronic device connection terminal part; a control unit for controlling the operation of the terminal unit by sensing the electrical connection state of the terminal unit, and controlling supply of power of the battery to the electrical connection terminal and the connection cable; a charging/discharging unit for charging or discharging the battery by the control unit; A protection unit that performs an operation to protect the battery under the control of the control unit, and performs an overcharge protection function, an overdischarge protection function, an overcurrent protection function, an overvoltage protection function, an overheat protection function, and a cell balancing function for the battery; A power supply comprising:

Description

POWER SUPPLY {APPARATUS FOR SUPPLYING POWER}

The present invention relates to a power supply device.

Non-disabled people, the disabled, the elderly, etc., who have difficulty in moving or moving, or with poor lower body functions, use mobility aids such as electric cars, electric vehicles, wheelchairs, and scooters for convenience.

They can move to a desired place without the help of others by using the above-described mobility aid medical device.

Such mobility-assisting medical devices include a manual mobility-assisted medical device, in which the occupant rotates a wheel by hand, and an electric mobility-assisted medical device (hereinafter, referred to as an electric medical device), which moves by driving a motor with electric power.

And when the battery that is built in the electric medical device and supplies electricity is discharged, the electric medical device stops unless the battery is charged.

When such battery discharge occurs, there is an inconvenient problem in that a heavy electric medical device must be manually moved to a place where the battery can be charged.

On the other hand, as a prior art of the power supply device according to the present invention to be described later, Patent Publication No. 10-2015-0049024 (published on May 08, 2015) discloses a battery monitoring system for an electric wheelchair.

However, the prior art, unlike the present invention, which will be described later, simply provides a battery monitoring system capable of delivering accurate remaining battery level information to a user through a moving average filter and a lookup table.

The present invention was created to solve the above problems, and it is a device that charges a battery of an electric medical device, serves as a temporary battery in an emergency, and has one or more connection terminals to charge an electronic device other than an electric medical device. An object of the present invention is to provide a power supply device.

The power supply device of the present invention for achieving the above object,

A power supply device for supplying power to an electric medical device, comprising:

a battery capable of charging and discharging to supply power to the electric medical device;

a display unit configured to display a charging state of the electric medical device receiving power from the battery;

a power terminal including a power cable, a first charging terminal, and a second charging terminal to supply power to the power supply to charge the battery;

a terminal part comprising a connection cable electrically connected to the electric medical device to charge the battery, an overload switch, a fuse, and an electronic device connection terminal part;

a control unit for controlling the operation of the terminal unit by sensing the electrical connection state of the terminal unit, and controlling supply of power of the battery to the electrical connection terminal and the connection cable;

a charging/discharging unit for charging or discharging the battery by the control unit;

A protection unit that performs an operation to protect the battery under the control of the control unit, and performs an overcharge protection function, an overdischarge protection function, an overcurrent protection function, an overvoltage protection function, an overheat protection function, and a cell balancing function for the battery; including,

When it is determined that the electric medical device is connected as a result of detecting the terminal, the controller supplies power to the electric medical equipment to charge the electric medical equipment, and outputs the charging status of the electric medical equipment to the display unit and

In addition, the control unit is characterized in that it controls the operation of the protection unit by monitoring the state information of the battery.

In the present invention, when it is determined that the electric medical device and the electronic device are connected at the same time as a result of the detection of the terminal, the controller supplies different power to each of the electric medical equipment and the electronic device to supply the electric medical equipment and the electronic device. The electronic device is charged, and the charging status of the electric medical device and the electronic device is output to the display unit.

In the present invention, when detecting that an abnormal situation such as overcharging, overdischarging, overcurrent, and high temperature occurs in the battery, the control unit protects the battery by opening a charging switch or a discharging switch, or the overload switch Alternatively, the fuse is operated to cut off the electric circuit.

In the present invention, further comprising a winding unit for winding the connection cable, wherein the winding unit winds the connection cable under the control of the control unit.

In the present invention, the power supply device is provided detachably to the electric medical device.

In the present invention, in the charging/discharging unit, when the battery is charged, the charging switch is turned on, the discharging switch is turned off, and when the battery is discharged, the charging switch is turned off, and the discharging switch is turned on. .

In the present invention, further comprising a compressor that provides compressed air under the control of the control unit, wherein the compressor provides compressed air to the tire provided in the electric medical device through an air injector provided in the power supply device .

In the present invention, the overload switch and the fuse, when the power supply device is in an overload state, cut off the electrical circuit to prevent damage to the internal electrical circuit under the control of the control unit, the overload of the power supply device The state is displayed through the display unit under the control of the control unit.

In the present invention, the electronic device connection terminal unit comprises: a first connection terminal providing a charging voltage of 16V to 20V; a second connection terminal providing a charging voltage of 5V; When the electronic device is connected to the power supply and charging or charging is completed, the first indicator and the second indicator are turned on to display a state in which charging or charging is completed.

According to an embodiment of the present invention, the battery can be charged by connecting a connection cable provided in the power supply device to the electric medical device.

In addition, since the power supply device is detachable from the electric medical device, even if the battery of the electric medical device is discharged, the battery can be charged using the power supply device on the spot, thereby eliminating anxiety about battery discharge.

In addition, since the electric medical device can be charged and moved while charging by using the power supply device, it is possible to solve the anxiety of discharging the battery.

In addition, it is possible to provide convenience to a user by providing one or more connection terminals in the power supply device to charge electronic devices other than the electric medical device.

1 to 3 are views showing an external view of a power supply device according to an embodiment of the present invention.
4 is a block diagram of an electric circuit inside a power supply device according to an embodiment of the present invention;
5 is a diagram illustrating an example of application of a power supply device according to an embodiment of the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numbers, and overlapping descriptions thereof is to be omitted.

1 to 3 are views illustrating an external view of a power supply device according to an embodiment of the present invention.

1 to 3, the appearance of the power supply device 100 is a power terminal unit 110, a connection cable 120 connected to an electric medical device, a power switch 131, an overload switch 132, a fuse ( 133 ), an electrical connection terminal 140 , an electronic device connection terminal unit 150 , a display unit 160 , and a heat dissipation hole 170 .

In this embodiment, the electric medical device may include an electric vehicle, an electric vehicle, a wheelchair, a scooter, and the like, and a modified medical device converted from a manual medical device may also be included therein.

A first side of the power supply device 100 illustrated in FIG. 1 may include a power terminal unit 110 for supplying power to the power supply device 100 .

The power terminal unit 110 may include a power cable 111 , a first charging terminal 112 , and a second charging terminal 113 .

When the plug of the power cable 111 is inserted into an outlet (not shown) electrically connected to a terminal box (not shown), power for operating the power supply device 100 may be supplied.

And, when the power supply device 100 receives power and operates, the battery (193 in FIG. 4) is charged or the power of the battery 193 is transferred to the electric medical device (210 and 230 in FIG. 5) and/or an electronic device (FIG. 5, 300 and 400 may be supplied to charge the electric medical devices 210 and 230 and/or the electronic devices 300 and 400 .

Here, the capacity of the battery 193 may increase or decrease. For example, the user removes the old battery 193 from the power supply device 100, and inserts a new battery 193 of a different capacity from the old battery 193 into the power supply device 100, so that the battery ( 193) may be increased or decreased.

The first charging terminal 112 and the second charging terminal 113 are connected to an external power supply device to supply power to the power supply device 100 , that is, to charge the battery 193 of the power supply device 100 . (not shown) and the power supply device 100 may be electrically connected.

Additional charging terminals are further provided in addition to the first charging terminal 112 and the second charging terminal 113 according to the type of another external power supply device to supply power to the power supply device 100 through the charging terminal. have.

The second side of the power supply device 100 illustrated in FIG. 2 includes a connection cable 120 connected to the electric medical devices 210 and 230 , a power switch 131 , an overload switch 132 , and a fuse 133 . can do.

The connection cable 120 is electrically connected to the electric medical devices 210 and 230 to charge the batteries (220 and 240 in FIG. 5 ) of the electric medical devices 210 and 230. It can be called a dedicated connection cable for the electric medical devices 210 and 230. .

The socket of the connection cable 120 connected to the electric medical devices 210 and 230 is not limited to any one, and may be replaced according to the type of the connection terminal of the electric medical devices 210 and 230 .

The power switch 131 may be input to operate the power supply device 100 .

When the power switch 131 is turned on, the power supply device 100 may supply power to charge the electric medical devices 210 and 230 and the electronic devices 300 and 400 , and charge the battery 193 of the power supply device 100 . You may.

When the power supply device 100 is overloaded, the overload switch 132 and the fuse 133 may serve to block an electric circuit to prevent damage to an internal electric circuit.

The overload state of the power supply device 100 may be displayed through the display unit 160, and the user who recognizes this inputs the overload switch 132 or the fuse 133 to artificially cut off the operation of the electric circuit to generate electricity. It can prevent damage to the circuit.

In addition, the control unit ( 191 of FIG. 4 ) that has internally determined the overload state of the power supply device 100 operates the overload switch 132 or the fuse 133 even if there is no user input to artificially block the operation of the electric circuit. may be

The front side of the power supply device 100 illustrated in FIGS. 1 and 2 may include an electrical connection terminal 140 , an electronic device connection terminal unit 150 , a display unit 160 , and a heat dissipation port 170 . .

The electrical connection terminal 140 is a 220V outlet and may be used for general electricity use. When either electrical device is connected to the electrical connection terminal 140 , power may be supplied to the electrical device to cause the electrical device to operate.

For example, when any one of the electrical devices is a coffee pot, when the coffee pot is connected to the electrical connection terminal 140 , power may be supplied to heat the liquid in the coffee pot.

The electronic device connection terminal unit 150 may supply power to various electronic devices to charge an internal battery (not shown).

Here, the electronic device is a notebook (300 in FIG. 5), a smart phone (400 in FIG. 5), a tablet PC, a smart TV, a mobile phone, a personal digital assistant (PDA), a laptop, a media player, a micro server, global positioning (GPS) system) device, e-book terminal, digital broadcasting terminal, navigation device, kiosk, MP3 player, digital camera, home appliance and other mobile or non-mobile computing device, but is not limited thereto.

Also, the electronic device may be a wearable terminal such as a watch, glasses, a headband, and a ring having a communication function and a data processing function.

Such an electronic device is not limited to the above description, and a device having a battery therein may be borrowed without limitation.

In addition, the electronic device connection terminal unit 150 may include a first connection terminal 151 to a third connection terminal 153 , but is not limited thereto, and various types of connection terminals may be borrowed without limitation.

The first connection terminal 151 may be configured to provide a charging voltage of 16V to 20V to charge the notebook 300 , and the second connection terminal 152 may be configured to charge the smartphone 400 . It can be configured to provide a charging voltage of 5V.

The charging voltage of the first connection terminal 151 to the third connection terminal 153 is not particularly limited as long as charging can be easily performed according to the type of electronic device, but a notebook pad as a mobile device that is generally widely used And considering that it is mainly used for charging electronic devices such as smartphones, it is preferably 5V or selected in the range of 16V to 20V.

On the other hand, considering that USB terminals are formed in various electronic devices, in order to expand the scope of application of the present invention, the first connection terminal 151 and the second connection terminal 152 have a USB port structure. can be done

In addition, the first connection terminal 151 and the second connection terminal 152 may be composed of different types of USB ports, specifically, USB 2.0 Type A, USB 2.0 Type B, and USB 2.0 Mini Type. It can be two different types selected from the group consisting of B (mini 5-pin), USB 2.0 Micro Type B (micro 5-pin), USB 3.0 Type A, or USB 3.0 Type B.

When the first connection terminal 151 and the second connection terminal 152 are configured as USB ports, a separate cable should be interposed between the power supply device 100 and the electronic device to be charged. , since the cable is used, freedom of selection of the location of the connection terminal is widened, and the power supply device 100 has the advantage that charging of the electronic device is possible while charging the electric medical devices 210 and 230 at the same time.

In addition, the electronic device connection terminal unit 150 may further include a first indicator 154 and a second indicator 155 .

The first indicator 154 and the second indicator 155 include a green LED or a red LED, and when the electronic devices 300 and 400 are connected to the power supply 100 and are being charged, the first indicator 154 and the second indicator 2 When any one of the indicators 155 (eg, a red LED) is turned on to indicate a state that charging is in progress, and the electronic devices 300 and 400 are connected to the power supply 100 and charging is completed The remaining one of the first indicator 154 and the second indicator 155 (eg, a green LED) may be turned on to indicate a state in which charging is completed.

The display unit 160 may display the charging state of the electric medical devices 210 and 230 connected to the power supply device 100 .

For example, when the battery of the charging object (eg, various types of electric medical devices 210 and 230, various types of electronic devices 300 and 400, etc.) is being charged by the power supply device 100, the display unit ( 160 may display the remaining capacity of the battery 193 of the power supply device 100 and the degree of charging the battery of the charging object as numerical values.

In addition, when air is being supplied to the tire of the electric medical device by the power supply device 100 (that is, the tire is being inflated), the display unit 160 displays the air pressure of the tire of the electric medical device as a numerical value. can be displayed as

The display unit 160 may include, for example, a predetermined display member such as an organic light emitting display (OLED) or a liquid crystal display (LCD) capable of recognizing a touch.

The heat outlet 170 may be provided in the form of a plurality of holes in order to dissipate heat generated by the charging/discharging operation of the battery 193 inside the power supply device 100 to the outside. Although the supply device 100 has the front and rear lower ends, it may be provided at any position capable of discharging heat to the outside.

The back side of the power supply device 100 shown in FIG. 3 shows the winding state of the connection cable 120 .

3 , the power supply device 100 may include a winding switch (not shown) to wind the connection cable 120 as shown in FIG. 3 , and when the winding switch is input, the connection cable 120 by the reel device 180 . This may be automatically wound, and the connection cable 120 may be unwound in a wound state regardless of the input of the winding switch.

In an optional embodiment, the back side of the power supply device 100 shown in FIG. 3 shows a wound state of the air injector 125 .

The air injector 125 may be connected to a compressor 197 to be described later to provide air to the tires provided in the electric medical devices 210 and 230, and furthermore, a device that requires compressed air, such as an air conditioner, a refrigerator, or a boiler. Compressed air can also be provided.

When air is provided to the tires of the electric medical devices 210 and 230 through the air injector 125, a pressure gauge 126 for adjusting the air pressure may be further included.

In this embodiment, the power supply device 100 can supply electric power to be charged even when the electric medical devices 210 and 230 are stopped, and also supply electric power to be charged while the electric medical devices 210 and 230 are moving. have.

4 is a diagram illustrating a block diagram of an electric circuit inside a power supply device according to an embodiment of the present invention.

Referring to FIG. 4 , the electric circuit 190 includes a display unit 160 , a control unit 191 , a terminal unit 192 , a battery 193 , a charge/discharge unit 194 , a protection unit 195 , and a winding unit ( 196) and a compressor 197.

The control unit 191 may control the overall operating state of the power supply device 100 and output the operating state to the display unit 160 .

The controller 191 may include all kinds of devices capable of processing data, such as a processor.

Here, the processor may refer to, for example, a data processing device embedded in hardware having a physically structured circuit to perform a function expressed as a code or an instruction included in a program.

As an example of the data processing device embedded in the hardware as described above, a microprocessor, a central processing unit (CPU), a processor core, a multiprocessor, an application-specific integrated circuit (ASIC) ) and a processing device such as a field programmable gate array (FPGA), but the scope of the present invention is not limited thereto.

In addition, it can be understood by those skilled in the art that the present embodiment may be implemented in other types of hardware.

The terminal unit 192 includes the power terminal unit 110 shown in FIGS. 1 to 3 , the connection cable 120 connected to the electric medical device, the power switch 131, the overload switch 132, the fuse 133, and the electric It may include a connection terminal 140 and an electronic device connection terminal unit 150 .

In addition, the control unit 191 may detect an electrical connection state of the terminal unit 192 to determine which terminal is operating, and may control the operation of the remaining components accordingly.

The battery 193 is each component of the power supply device 100 under the control of the controller 191, the electric medical devices 210 and 230 and/or the electronic devices 300 and 400 electrically connected to the power supply device 100. It can supply power and can charge and discharge itself.

The battery 193 includes a nickel-cadmium battery, a lead-acid battery, a nickel metal hydride battery (NiMH), a lithium-ion battery, and a lithium polymer battery. battery) may include a rechargeable secondary battery such as, but not limited thereto.

When it is determined that the electric medical devices 210 and 230 are connected as a result of the detection of the terminal unit 192, the controller 191 supplies power to the electric medical devices 210 and 230 so that the electric medical devices 210 and 230 are charged. The charging status of 210 and 230 may be output to the display unit 160 .

In addition, when the control unit 191 determines that the electronic devices 300 and 400 are connected as a result of the detection of the terminal unit 192 , the control unit 191 supplies power to the electronic devices 300 and 400 so that the electronic devices 300 and 400 are charged, and the electronic devices 300 and 400 are connected. ) may be output to the display unit 160 .

In addition, when the control unit 191 determines that the electric medical devices 210 and 230 and the electronic devices 300 and 400 are connected at the same time as a result of the detection of the terminal 192, the electric medical devices 210 and 230 and the electronic devices 300 and 400 have different power to each other. may be supplied so that the electric medical devices 210 and 230 and the electronic devices 300 and 400 are charged, and the charging status of the electric medical devices 210 and 230 and the electronic devices 300 and 400 may be output to the display unit 160 .

Also, the charging/discharging unit 194 may charge or discharge the battery 193 by the control unit 191 .

Here, discharging may include a state in which power of the battery 193 is supplied to internal components, the electric medical devices 210 and 230 and/or the electronic devices 300 and 400 .

In addition, the charging/discharging unit 194 may be disposed in the form of a charging switch (not shown) and a discharging switch (not shown) on a current path through which a charging current and a discharging current flow, and a charging switch when charging the battery 193 . may be turned on, and the discharge switch may be turned off.

Also, when the battery 193 is discharged, the charging switch may be turned off and the discharging switch may be turned on.

In addition, the protection unit 195 may perform an operation to protect the battery 193 under the control of the control unit 191 .

Here, the control unit 191 may monitor the state information of the battery 193 to control the operation of the protection unit 195 .

In addition, the control unit 191 may obtain the current, voltage, temperature, residual power amount, lifespan, state of charge (SOC), and the like of the battery 193 . For example, although not shown, the controller 191 may measure the voltage and temperature of the battery 193 using sensors.

In addition, the protection unit 195 may perform an overcharge protection function, an overdischarge protection function, an overcurrent protection function, an overvoltage protection function, an overheat protection function, and a cell balancing function for the battery 193 .

In addition, when detecting that an abnormal situation such as overcharging, overdischarging, overcurrent, and high temperature occurs in the battery 193 , the control unit 191 opens the charging switch and/or discharging switch to protect the battery 193 . Alternatively, the electric circuit may be blocked by operating the overload switch 132 or the fuse 133 .

In this case, the control unit 191 may output a control signal for controlling the charging switch and/or the discharging switch.

And the winding unit 196 may wind the connection cable 120 under the control of the control unit 191 . The control unit 191 receiving the winding switch signal input from the user may operate the winding unit 196 to wind the connection cable 120 .

In the present embodiment, the winding unit 196 may be the reel device 180 , and when the controller 191 operates the winding unit 196 , it can be said that the reel device 180 is operated.

In addition, the compressor 197 may provide compressed air under the control of the control unit 191, and through the air injector 125, compressed air such as tires or air conditioners, refrigerators, boilers, etc. provided in the electric medical devices 210 and 230 Compressed air can be provided to the device in need.

5 is a diagram illustrating an example of application of a power supply device according to an embodiment of the present invention.

Referring to FIG. 5 , FIG. 5A shows that the power supply device 100 is connected to an electric medical device, for example, an electric wheelchair 210 through a connection cable 120 , and the power supplied by the power supply device 100 is used. It shows a state of charging the battery 220 of the electric wheelchair 210 .

The power supply device 100 may be configured to be detachably attached to the electric wheelchair 210 as an embodiment. That is, the electric wheelchair 210 may be provided with a space in which the power supply device 100 can be mounted at a predetermined position in preparation for the battery 220 discharge condition.

Figure 5b shows the power supply device 100 is connected to the electric medical device, for example, the electric scooter 230 through the connection cable 120, and the electric scooter 230 with the power supplied by the electric power supply device 100. A state in which the battery 240 is charged is shown.

5C is a state in which the power supply device 100 is connected to the notebook 300 as an electronic device through the first connection terminal 151, and the notebook 300 is charged with the power supplied by the power supply device 100. is showing

5D shows that the power supply device 100 is connected to the smartphone 400 as an electronic device through the second connection terminal 152 , and the smartphone 400 is charged with the power supplied by the power supply device 100 . state is shown.

As described above, the present invention has been described with reference to one embodiment shown in the drawings, but this is merely exemplary, and various modifications and equivalent embodiments are possible therefrom by those skilled in the art. will understand

Accordingly, the true protection scope of the present invention should be defined only by the appended claims.

100. Power supply
110. Power terminal part
120. Connection cable
131. Power switch
132. Overload switch
133. Fuse
140. Electrical connection terminals
150. Electronic device connection terminal part
160. Display unit
170. Heat vents

Claims (9)

In the power supply device 100 for supplying power to the electric medical device (210,230),
a battery 193 capable of charging and discharging to supply power to the electric medical devices 210 and 230;
a display unit 160 for displaying the charging status of the electric medical devices 210 and 230 supplied with power from the battery 193;
Power supply terminal 110 including a power cable 111, a first charging terminal 112 and a second charging terminal 113 to supply power to the power supply device 100 to charge the battery 193 Wow;
a connection cable 120 electrically connected to the electric medical device 210 and 230 to charge the battery 193;
a terminal unit 192 including the connection cable 120 , an overload switch 132 , a fuse 133 , and an electronic device connection terminal unit 150 ;
Controlling the operation of the terminal unit 192 by sensing the electrical connection state of the terminal unit 192, and controlling the supply of power of the battery 193 to the electrical connection terminal 140 and the connection cable 120 a control unit 191;
a charging/discharging unit 194 for charging or discharging the battery 193 by the control unit 191;
An operation of protecting the battery 193 is performed under the control of the controller 191, and an overcharge protection function, an overdischarge protection function, an overcurrent protection function, an overvoltage protection function, an overheat protection function, and a cell for the battery 193 are performed. A protection unit 195 that performs a balancing function; including,
When it is determined that the electric medical devices 210 and 230 are connected as a result of the detection of the terminal unit 192, the controller 191 supplies power to the electric medical devices 210 and 230 so that the electric medical devices 210 and 230 are charged. and output the charging status of the electric medical devices 210 and 230 to the display unit 160,
In addition, the control unit 191 controls the operation of the protection unit 195 by monitoring the state information of the battery 193,
And further comprising a winding unit 196 for winding the connection cable 120,
The control unit 191 receiving the winding switch signal operates the winding unit 196 to wind the connection cable 120,
In addition, the power supply device 100 is provided detachably to the electric medical devices (210, 230),
The power supply device, characterized in that the overload state of the power supply device (100) is displayed through the display unit (160) under the control of the control unit (191). According to claim 1,
The control unit 191,
When it is determined that the electric medical devices 210 and 230 and the electronic devices 300 and 400 are connected at the same time as a result of the detection of the terminal unit 192,
By supplying different power to the electric medical devices 210 and 230 and the electronic devices 300 and 400, respectively, the electric medical devices 210 and 230 and the electronic devices 300 and 400 are charged, and the electric medical devices 210 and 230 and the electronic devices 300 and 400 are charged. A power supply apparatus, characterized in that the charging status of the electronic device (300,400) is output to the display unit (160). According to claim 1,
The control unit 191,
When it is detected that an abnormal situation such as overcharging, overdischarging, overcurrent, and high temperature occurs in the battery 193 , the battery 193 is protected by opening a charging switch or a discharging switch, or the overload switch 132 . or by operating the fuse (133) to cut off an electric circuit. delete delete According to claim 1,
The charging / discharging unit 194,
When charging the battery 193, the charging switch is turned on, the discharging switch is turned off,
When the battery 193 is discharged, the charging switch is turned off, and the discharging switch is turned on. According to claim 1,
Further comprising a compressor 197 for providing compressed air under the control of the control unit 191,
The compressor (197), the power supply device, characterized in that for providing compressed air to the tire provided in the electric medical device (210,230) through the air injector (125) provided in the power supply device (100). delete According to claim 1,
The electronic device connection terminal unit 150,
a first connection terminal 151 providing a charging voltage of 16V to 20V;
a second connection terminal 152 providing a charging voltage of 5V;
When the electronic devices 300 and 400 are connected to the power supply 100 and charging is completed or charging is completed, the first indicator 154 and the second indicator 155 are turned on to display a state in which charging or charging is completed. ; Power supply device, characterized in that it is included.

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