KR20180134243A - Charger for Electric wheelchairs - Google Patents

Abstract

The present invention relates to a charger for an electric wheelchair which enables a user to move for a long period of time using a wheelchair by charging and using a discharged electric condenser if necessary. To this end, the charger for an electric wheelchair comprises: a motor (10) composed of a motor rotor and a motor stator to convert electric energy into rotary energy; and a power generator (100) connected to a motor shaft forming the motor rotor to convert the rotary energy of the motor into electric energy.

Description

[0002] Charger for Electric wheelchairs [0003]

In particular, the present invention relates to an electric wheelchair filling apparatus, and more particularly to an electric wheelchair filling apparatus having two power storage devices and a motor generator as a driving device, and when one of the two power storage devices is discharged, The power storage device is used and power is generated from the motor generator during operation to charge the discharge electric storage device so that the discharged electric storage device is charged and used when necessary so that the electric wheelchair can be moved for a long time by using the wheelchair. And a charging device.

Generally, a currently used wheelchair is a mechanism for allowing a person with a physical disability, a patient or an elderly person with inconvenience to move more easily to move, and a manual type wheelchair in which a user normally rotates a wheel mounted on both sides of a seat Although it is widely used, there is a problem that an arm is obstructed or an elderly person is hardly available without help of another person.

Recently, a motor-driven wheelchair (electric wheelchair) has been developed, in which a wheel is driven by a driving device provided in a vehicle body, so that a user can operate the lever with ease without requiring a direct force.

In recent years, development of electric vehicles has been actively carried out for the purpose of development of alternative energy and prevention of environmental pollution. Along with this trend, special cars for the disabled are also being converted as electric vehicles.

1 is a general electric wheelchair configuration diagram.

1, a conventional electric wheel chair 10 is fixedly provided with a driving part 11 constituting a lower part and a boarding part 12 constituting an upper part thereof.

In addition, the special vehicle for the disabled generally includes a driving vehicle for a disabled person who is handicapped by a disabled person and a wheelchair lift which enables a disabled person with a wheelchair to easily ride with a general automatic transmission vehicle, , And a hovering platform (hoist). In addition, a disabled person's driving vehicle is designed to be able to operate like a normal person by installing a special device according to the obstacle area. If you have a pair of feet, you can use a lever type so that you can manipulate the excel and brakes only by hand. You can install the necessary auxiliary equipment to move the vehicle system that needs to operate with the obstacle part to the area without obstacle. Thereby enabling the disabled to drive the vehicle.

However, in order to efficiently manage the battery, the electric vehicle for the disabled is charged with the battery of the electric wheelchair that is seated in the electric vehicle from the main battery of the electric vehicle to enable the periodic current supply to the electric wheelchair, The movement distance is limited and the long distance movement is obstructed and the battery capacity must be checked from time to time. As a result, there is an inconvenience that it is necessary to move to unstable psychology since the discharge is always worried.

The prior art documents related to the present invention are as follows.

Korean Patent Laid-Open No. 10-2009-0092041 (Title of the Invention: Battery System of Plug-in Hybrid Electric Vehicle), Korean Patent Laid-Open No. 10-2001-0059122 (Title: Battery Charging State Detection Method of Electric Vehicle), Korea Japanese Patent Application Laid-Open No. 10-2000-0025249 (entitled " Power Control Device and Method for Electric Vehicle)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a power storage device having two sets of power storage devices and simultaneously having a motor generator as a drive device, It is an object of the present invention to provide a power storage device for a vehicle which is capable of being driven for a long time by using a wheelchair by charging the discharged power storage device while generating power during operation from a motor generator.

As means for achieving the above object,

The present invention relates to a motor control apparatus, which includes a motor including a motor rotor and a motor stator for converting electric energy into rotational energy, a power generator connected to a motor shaft constituting the motor rotor and converting rotational energy of the motor into electric energy ≪ / RTI > The power generator includes a ring-shaped shield plate body installed between the motor and the power generator to prevent an adverse effect caused by the magnetic field of the motor, and a plurality of fixing pieces for fixing the shield plate body to the motor. A plate; A generator rotor including a plurality of magnets connected to the motor shaft passing through the blocking plate and rotating together with the motor shaft to form a magnetic field; A generator stator fixed to the outer side of the shield plate at a predetermined interval and opposed to each other with an air gap between the generator rotors at regular intervals; A first power storage device connected to the plurality of winding coils constituting the generator stator to store electric energy; A second power storage device connected to the plurality of winding coils constituting the generator stator to store electric energy; A controller for measuring electricity from the first power storage device and the second power storage device to confirm whether the discharged power storage device is being charged from the power generator; And an alarm signal automatic output unit for outputting an alarm signal under the control of the control unit when it is determined that the power storage device is not being charged.

Further, the generator rotor may include an inner rotating plate provided between the shield plate and the generator rotor, and an outer rotating plate provided on the outer side of the generator rotor, and a plurality of Permanent magnets are included.

In addition, the alarm signal automatic output unit 1000 includes a power supply unit 1110 for applying power to the alarm signal output unit 1000 by itself; A first relay switch (RY1) provided on one side of an output terminal of the power source unit for switching a power source output from the power source unit; A second relay switch (RY2) provided on the other end of the output terminal of the power source unit for switching a power source unit output from the power source unit; A third relay switch RY3 coupled to an output terminal of the second relay switch and generating a magnetic force when the second relay switch is switched; A first circuit connection switch (sw1) for performing a function of energizing the circuit while the iron wire is pulled by the third relay switch; A second alarm signal output power switch (not shown) that is operable to supply power to the alarm signal output control unit 1140 and to display an alarm signal through the alarm signal display unit 1150 when the iron wire is pulled by the third relay switch sw2); The second relay switch is switched to induce the third relay switch to be switched so that the first circuit connection switch and the second alarm signal output power supply switch are switched and then the second relay switch is turned off, An alarm for switching the relay switch and for continuing the switching state of the first circuit connection switch and the second alarm signal output power switch configured to be interlocked with the first relay switch at the same time, A control unit 1120; A circuit-operating iron piece (1131) which contacts the first circuit connecting switch (sw1) to relay power supplied from the first relay switch to continue the flow of power; And an alarm signal output control unit power supply unit for connecting the power supply to the alarm signal output control unit 1140 and guiding the alarm device to operate when the circuit breaker 1131 is turned on, A steel wire piece 1132; The first circuit connection switch sw1 and the circuit operation wire 1131 are connected to each other at the lower end of the circuit operation steel plate 1131 and at the lower end thereof in the form of a bar magnet having an S pole, First self-sustaining means 1133 for guiding the electric power to be maintained in the off-state at all times; And the first magnetic holding means 1133 having an S pole at the lower end and a first magnetic holding means 1133 at the upper end of the first circuit connecting switch sw1, The operating piece 1131 is pulled up when the third relay switch is actuated so that the S pole constituting the upper part of the body and the first magnetic holding means 1133 The N pole constituting the lower portion of the body and the S pole constituting the lower portion of the body of the first magnetic holding means 1133 are located close to each other, When the first circuit connecting switch sw1 is magnetically coupled to the holding means 1133 and the first circuit connecting switch sw1 is switched, the state of attachment of the circuit-operating ferrule 1131 continues even if the operation of the third relay switch is stopped, And the second relay switch is connected to the first relay switch and the third relay switch, the first relay switch is connected to the first relay switch, Maintenance means 1134; The first magnetic holding means 1133 is disposed at a lower end of the circuit board 1131 at a predetermined distance from the first magnetic holding means 1133. The lower end of the first magnetic holding means 1133 is in the form of a bar magnet having an S pole, The circuit breaker 1131 is lifted from the first circuit connection switch sw1 to maintain the circuit breaker state when the third relay switch is not operated and the circuit breaker 1131 is lowered Auxiliary magnetic holding means 1133a for holding the ON state of the first circuit connecting switch sw1; And the second magnetic holding means and the first magnetic holding means are magnetically coupled to each other so that they are not directly coupled to each other but are held in a constant gap while being magnetically coupled to each other A spacing agent 1134a for inducing the first self-sustaining means and the second self-sustaining means to naturally separate from each other at the time of disassembly; And a control unit for controlling the operation of the alarm signal display unit when the user operates the alarm unit to interrupt the operation of the alarm signal, And a manual operation switch 1135 for stopping the output of the alarm signal so that the alarm signal is no longer output.

As described above, according to the present invention, there is provided a power storage device comprising two power storage devices and simultaneously having a motor generator as a drive device, wherein one of the two power storage devices drives the device, The power storage device is switched to another power storage device, and power is generated from the motor generator during operation to charge the discharged power storage device, thereby enabling long-time movement using the wheelchair.

1 is a schematic view of a typical electric wheelchair.
Figs. 2 to 4 are diagrams showing a configuration of a charging device of the present invention. Fig.
5 is a block diagram for automatically outputting charging and alarm signals according to the present invention.
6 is a circuit diagram showing an automatic alarm signal output section of the present invention.
7 is an enlarged view of the main part of Fig.
8 is a diagram illustrating an example of the operation of the alarm signal automatic circuit section of the present invention.

The operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings and description. It should be understood, however, that the drawings and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention, and are not to be construed as limiting the present invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terms used below are defined in consideration of the functions of the present invention, which may vary depending on the user, intention or custom of the operator. Therefore, the definition should be based on the contents throughout the present invention.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The configuration is omitted as much as possible, and a functional configuration that should be additionally provided for the present invention is mainly described.

Those skilled in the art will readily understand the functions of the components that have been used in the prior art among the functional configurations that are not shown in the following description, The relationship between the elements and the components added for the present invention will also be clearly understood.

In order to efficiently explain the essential technical features of the present invention, the following embodiments properly modify the terms so that those skilled in the art can clearly understand the present invention, It is by no means limited.

As a result, the technical idea of the present invention is determined by the claims, and the following embodiments are merely illustrative of the technical idea of the present invention in order to efficiently explain the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs. .

Figs. 2 to 4 are diagrams showing a configuration of a charging device of the present invention. Fig.

5 is a block diagram for automatically outputting charging and alarm signals according to the present invention;

6 is a circuit diagram showing an automatic alarm signal output section of the present invention.

7 is an enlarged view of the main part of Fig.

8 is a diagram illustrating an example of the operation of the alarm signal automatic circuit unit of the present invention,

2 to 4, a motor shaft power generator 1 according to the present invention mainly includes a motor 10 for converting electric energy into rotational energy, a power generator (not shown) for converting rotational energy into electric energy, (100).

As shown in FIG. 4, the motor 10 includes a motor housing 11, a motor stator 12, and a motor rotor 13.

The motor housing 11 forms an outer appearance of the motor 10 and covers and protects the motor stator 12 so that the motor rotor 13 is in the center so that the air gap is not eccentric do.

The motor stator 12 is for forming an electric field and comprises an iron core 12a to which a magnetic flux passes and a coil winding 12b for making an electromagnet. The motor rotor 13 is rotatably mounted on the inner surface of the motor stator 12 and includes a permanent magnet 19 for converting electric energy received from the motor stator 12 into rotational energy, And a motor shaft (SHAFT) 15.

As shown in the figure, the motor shaft 15 is configured to always maintain a straight position by the bearings 14 provided in the motor housing 11 and to safely rotate at high speed. Accordingly, the motor shaft 15 serves to transmit the rotational force generated by the interaction between the electric force of the motor stator 12 and the magnetic field generated by the permanent magnet 19 of the motor rotor 13 to the outside.

Therefore, when power is connected to the lead wire 16 connected to the winding coil 12 of the motor stator 12, the electric power generated in the winding coil 12 and the electric power generated in the permanent magnet of the motor rotor 13 So that the motor shaft 15 rotates. The rotational force of the motor rotor 13 is transmitted to the external rotating device (not shown) through the motor shaft 15 to perform its original function.

The power generator 100 connected to the motor shaft 15 of the motor 10 converts the rotational force of the motor shaft 15 into electric energy.

The power generator 100 includes a shield plate 110, a generator rotor 120, and a generator stator 130.

The shield plate 110 is fixed to the outer circumferential surface of the motor 10 so as to fix the power generator 100 to one side of the motor 10 and is installed between the motor 10 and the power generator 100 Thereby preventing the magnetic field from being adversely affected by the magnetic field.

The blocking plate 110 includes a circular blocking body 111 having a size larger than that of the side surface of the motor 10. An opening 112 is formed at the center of the cut-off main body 111 so that the motor shaft 15 passes through the cut-off main body 111. A plurality of fixing pieces 113 for fixing the blocking plate 110 to the outer circumferential surface of the motor 10 are integrally formed in the blocking body 111. Therefore, the blocking plate 110 can be fastened to the outer surface of the motor 10 through a fastening means such as a bolt to the fastening piece 113.

The generator rotor 120 is connected to a motor shaft 15 passing through the shield plate 110 and rotates together with the motor shaft 15. The generator rotor 120 rotates together with the motor shaft 15, And an outer rotary plate 122. The inner rotating plate 121 and the outer rotating plate 122 are spaced apart from each other by a spacer 123 formed on the inner rotating plate 121 and a plurality of permanent magnets 125 have. For example, the permanent magnets 125 have a trapezoidal shape and are installed radially.

A disk-shaped generator stator 130 is installed between the inner rotating plate 121 and the outer rotating plate 122 spaced apart from each other by a predetermined distance. The generator stator 130 includes a ring-shaped fixing member 131 spaced apart from the inner rotating plate 121 and the outer rotating plate 122 so as to form air gaps at regular intervals, And a plurality of winding coils 135 provided in the central opening 132. [ The plurality of winding coils 135 are installed to correspond to the plurality of permanent magnets 125 attached to the inner rotating plate 121 and the outer rotating plate 122.

Meanwhile, the generator stator 130 is fixed to the blocking plate 110 described above. For this purpose, a plurality of fixing rods 114 for fixing the fixing rods 131 at predetermined intervals are integrally formed on the blocking plate 110. In addition, a fastening hole (134) is formed in the fixing member (131) to correspond to the fixing rod (114). Therefore, a fastening means such as a screw or a bolt may be inserted through the fastening hole 134 and fastened to a thread formed on the fixing rod 114 to fix the generator stator 130.

When the motor shaft 15 rotates by supplying power to the motor 10, the inner rotary plate 121 and the outer rotary plate 122 connected to the motor shaft 15 are connected to the motor shaft 15 Rotate together. At this time, since the generator stator 130 is installed between the inner rotating plate 121 and the outer rotating plate 122 with a constant air gap therebetween, the number of the stator 130 attached to the inner and outer rotating plates 121, A magnetic field formed by the permanent magnets 125 induces an electromotive force in the plurality of winding coils 135 provided in the fixing member 131.

The electricity derived from the winding coil 135 is stored in the power storage devices 200a and 200b connected to the winding coil 135. [ At this time, an AC-DC converter for converting AC electricity generated by the power generator 100 into DC electricity is installed at the front end of the power storage devices 200a and 200b, A DC-AC converter for converting into AC electricity can be installed.

That is, the present invention includes two power storage devices 200a and 200b, and when one power storage device 200a is determined to be discharged to 11.7 V or less, the other second power storage device 200b is connected, At this time, the discharged first power storage device 200a is automatically charged by the generator 100. [

When the first power storage device 200a is charged from 14.9V to 15.1V, charging by the generator stops, and when the second power storage device 200b is discharged, the first power storage device 200a is connected to drive the wheelchair Power is generated by the driven motor to charge the second power storage device 200b.

Since the above-described operation is continuously repeated, even if the vehicle travels a long distance at the time of using the wheelchair, the power storage device is not completely discharged.

On the other hand, when one of the two power storage devices is discharged and the motor is driven by replacing with another power storage device, if the control unit detects the charging of the discharge storage device and charging is not being performed, Induce to heal quickly.

That is, when one charging device is discharged, the charging device discharged at the same time while the motor is running with the power of the other charging device must be charged, but if the charging is not properly performed, the long distance operation can not be performed.

Accordingly, in the present invention, if the discharged electric storage device is not properly charged, the alarm signal is continuously output through the alarm signal automatic output unit 1000 under the control of the controller 300, do.

The automatic alarm signal output unit 1000 includes a power supply unit 1110, a first power supply unit 1110, and a second power supply unit 1110. The automatic alarm output unit 1000 includes a power supply unit 1110, The relay switch RY1, the second relay switch RY2, the third relay switch RY3, the first circuit connection switch sw1, the second circuit connection switch sw2, the alarm control unit 1120, .

The power source unit 1110 applies power to its own power source.

The first relay switch RY1 is provided on one side of the output terminal of the power supply unit to switch the power output from the power supply unit.

The second relay switch RY2 is provided on the other side of the output terminal of the power source unit to switch the power source unit output from the power source unit.

The third relay switch RY3 is coupled to the output terminal of the second relay switch and generates a magnetic force when the second relay switch is switched.

The first circuit connection switch sw1 performs a function of energizing the circuit by pulling the iron piece by the third relay switch.

The second alarm signal output power switch sw2 is supplied with power by the third relay switch so that the alarm signal output control unit 1140 is powered on to induce an alarm signal to be displayed through the alarm signal display unit 1150 It plays a role.

The alarm control unit 1120 switches the second relay switch to induce the third relay switch to be switched so that the first circuit connection switch and the second alarm signal output power switch are switched, The third relay switch is turned off and the first circuit connection switch configured to be interlocked with the first relay switch and the power switch for outputting the second alarm signal are continuously maintained to switch the alarm state It plays a role to sustain.

The present invention is also characterized in that it comprises a circuit element for operation 1131, an alarm piece 1132 for connecting an alarm signal operation control unit, a first magnetic holding means 1133, a second magnetic holding means 1134, Means 1133a, a gap 1134a, and a manual operation switch 1135. As shown in Fig.

The circuit-operating piece 1131 contacts the first circuit connection switch sw1 to relay the power supplied from the first relay switch to continue the flow of power.

The alarm signal output control unit power supply connection piece 1132 is designed to operate in conjunction with the circuit breaker 1131. When the circuit breaker 1131 is turned on, the alarm signal output control unit 1140 is powered Thereby inducing the alarm device to operate.

The first magnetic holding means 1133 is provided at the lower end of the circuit operation steel plate 1131 and has a lower end in the form of a bar magnet having an S pole, sw1 and the circuit-operating iron piece 1131 are always kept in the off-state.

The second magnetic holding means 1134 is provided on the upper portion of the first circuit connecting switch sw1 and has a bar magnet shape having an S pole at the upper end and a first magnet holding The circuit breaker 1133 is pushed to push the circuit breaker 1131 up to maintain the electrically turned off state and the circuit breaker 1131 is pulled up when the third relay switch is operated so that the S The N pole constituting the upper part of the body of the first magnetic holding means 1133 and the N pole constituting the lower portion of the body and the S pole constituting the lower portion of the body of the first magnetic holding means 1133, When the first relay switch is magnetically coupled to the first magnetic holding means 1133 while the first relay switch is in the close position and the first relay switch is turned on at the same time the operation of the third relay switch is stopped, State And then maintains the power supply state through the first relay switch. At this time, when the circuit breaker iron piece is operated by the operation of the third relay switch, the iron wire for connecting the power supply of the alarm signal output controller is automatically operated so that the alarm signal is outputted to the outside.

The auxiliary magnetic holding means 1133a is installed at the lower end of the circuit operation steel plate 1131 in a state of being spaced apart from the first magnetic holding means 1133 by a predetermined distance and has a lower end in the form of a bar magnet having an S pole, When the third relay switch is not operated, the circuit breaker 1131 is lifted from the first circuit connection switch sw1 to keep the circuit in a disconnected state while the third relay switch is in operation, The operating wire 1131 is lowered to maintain the ON state of the first circuit connecting switch sw1.

Particularly, the auxiliary magnetic holding means 1133a affects the second magnetic holding means 1134 even if the first magnetic holding means 1133 is blinded, so that the off state of the first circuit connecting switch during the third relay switch non- And is magnetically coupled with the second magnetic holding means during the operation of the third relay switch to maintain the ON state of the first circuit connecting switch sw1.

The gap 1134a is provided so as to surround the periphery of the N pole of the second magnetic holding means 1134 and the second magnetic holding means and the first magnetic holding means are not directly coupled to each other when they are magnetically coupled, So that the first magnetic holding means and the second magnetic holding means can be separated more naturally from each other by the action of the spacing agent at the time of disassembly. If the spacing agent is not present, the body of the first self-holding means and the body of the second self-holding means are directly attached to each other, so that mutual separation becomes difficult later. Accordingly, in the present invention, further spacers are provided so that the first magnetic holding means and the second magnetic holding means can be easily separated.

The reason why the spacing agent is provided only around the N pole of the second magnetic holding means is that the first magnetic holding means and the second magnetic holding means must be separated from each other when the relay switch is not operated, Pole and the S-pole of the second magnetic holding means are opposed to each other and the separated state can be easily maintained. If the spacing agent is wrapped to the S-pole of the second magnetic holding means, the strength of the S-poles of the first magnetic holding means and the second magnetic holding means is weakened by the interference of the spacers when the third relay switch is not operated The maintenance of the separation state may become unstable.

Accordingly, in the present invention, the spacers are provided only on the N pole of the second magnetic holding means to facilitate the separation of the first magnetic holding means and the second magnetic holding means, and when magnetic coupling is performed, So that the magnetically coupled state can be easily maintained. In practice, when the first magnetic holding means and the second magnetic holding means are coupled to each other, the N pole of the first magnetic holding means and the S pole of the second magnetic holding means come close to each other and are strongly magnetically coupled Even if the relay switch is turned off, the falling state of the circuit breaker 1131 is maintained, so that the ON state of the first circuit connecting switch sw1 can be maintained.

The manual operation switch 1135 is connected to a wire for circuit operation and a wire for connecting an alarm signal output control unit to the power supply. When the user operates the automatic operation switch 1135 to stop the operation of the alarm signal in a state that the alarm signal output unit is turned off, The signal output control unit turns off the iron wire for power connection so that the operation of the alarm signal display unit is stopped so that the alarm signal is no longer outputted.

Hereinafter, the operation of the alarm signal automatic output unit 1000 will be described.

First, a control relation for outputting an alarm signal will be described. In the control unit, the controller applies power to the second relay switch to operate the third relay switch. Accordingly, the first circuit connection switch sw1 and the alarm signal output power switch sw2 are turned on by the operation of the third relay switch, and the alarm signal output control unit 1140 is powered on and the alarm signal is displayed.

When the first circuit connection switch (sw1) is activated, the control unit interrupts the operation of the second relay switch to cut off the operation of the third relay switch, and simultaneously operates the first relay switch.

On the other hand, if the operator turns off the first circuit connecting switch and the alarm signal output power switch in the middle of the output of the alarm signal, the control unit recognizes the first circuit connecting switch and the alarm signal output power switch. Then, the second relay switch is operated to operate the third relay switch, The alarm signal display unit 1150 can be operated continuously by returning the power to the alarm signal control unit 1140 while maintaining the closed circuit while moving the alarm signal display unit 1140.

That is, if the alarm factor is not solved, the present invention continuously outputs a warning sound to guide the user to solve the alarm factor.

In other words, if the control unit applies the switching signal to the second relay switch and the first relay switch, the power supply is returned again and the alarm signal is automatically output. Accordingly, even if the alarm signal is cut off It is possible to induce the operator to reliably solve the cause of the alarm signal.

If it is determined that the output of the alarm signal is no longer needed by the control unit, the power supply signal is no longer applied to the first relay switch and the second relay switch. In this case, the user manually operates the manual switch 1135 to turn off the alarm signal .

10: Motor
11: Motor housing
12: Motor stator
13: Rotor
100: Power generator
110:
120: generator rotor
130: generator stator
200a, 200b: Charging device
1000: Alarm signal automatic output section

Claims (3)

A motor 10 including a motor rotor and a motor stator for converting electric energy into rotational energy; a power generator (not shown) connected to the motor shaft constituting the motor rotor and converting the rotational energy of the motor to electric energy 100);
The power generator (100)
A shield plate 110 installed between the motor and the power generator and having a ring-shaped shield plate body for preventing adverse effects due to the magnetic field of the motor, and a plurality of fixing pieces for fixing the shield plate main body to the motor, ;
A generator rotor (120) including a plurality of magnets connected to the motor shaft passing through the blocking plate to rotate together with the motor shaft to form a magnetic field;
A generator stator 130 fixed to the outer side of the blocking plate at a predetermined interval and facing the generator rotors with an air gap therebetween at regular intervals;
A first power storage device (200a) connected to a plurality of winding coils constituting the generator stator and storing electric energy;
A second power storage device (200b) connected to a plurality of winding coils constituting the generator stator and storing electric energy;
A controller (300) for measuring electricity from the first power storage device and the second power storage device to confirm whether the discharged power storage device is being charged from the power generator;
And an alarm signal automatic output unit (1000) for outputting an alarm signal under the control of the control unit when it is determined that the power storage device is not being charged. The method according to claim 1,
Wherein the generator rotor includes an inner rotating plate provided between the shield plate and the generator rotor and an outer rotating plate provided on the outer side of the generator rotor, and a plurality of permanent magnets provided corresponding to the inner rotating plate and the outer rotating plate And a magnet for driving the wheelchair. The method according to claim 1,
The alarm signal automatic output unit 1000,
A power supply unit 1110 for applying a power supply by its own power supply;
A first relay switch (RY1) provided on one side of an output terminal of the power source unit for switching a power source output from the power source unit;
A second relay switch (RY2) provided on the other end of the output terminal of the power source unit for switching a power source unit output from the power source unit;
A third relay switch RY3 coupled to an output terminal of the second relay switch and generating a magnetic force when the second relay switch is switched;
A first circuit connection switch (sw1) for performing a function of energizing the circuit while the iron wire is pulled by the third relay switch;
A second alarm signal output power switch (not shown) that is operable to supply power to the alarm signal output control unit 1140 and to display an alarm signal through the alarm signal display unit 1150 when the iron wire is pulled by the third relay switch sw2);
The second relay switch is switched to induce the third relay switch to be switched so that the first circuit connection switch and the second alarm signal output power supply switch are switched and then the second relay switch is turned off, An alarm for switching the relay switch and for continuing the switching state of the first circuit connection switch and the second alarm signal output power switch configured to be interlocked with the first relay switch at the same time, A control unit 1120;
A circuit-operating iron piece (1131) which contacts the first circuit connecting switch (sw1) to relay power supplied from the first relay switch to continue the flow of power;
And an alarm signal output control unit power supply unit for connecting the power supply to the alarm signal output control unit 1140 and guiding the alarm device to operate when the circuit breaker 1131 is turned on, A steel wire piece 1132;
The first circuit connection switch sw1 and the circuit operation wire 1131 are connected to each other at the lower end of the circuit operation steel plate 1131 and at the lower end thereof in the form of a bar magnet having an S pole, First self-sustaining means 1133 for guiding the electric power to be maintained in the off-state at all times;
And the first magnetic holding means 1133 having an S pole at the lower end and a first magnetic holding means 1133 at the upper end of the first circuit connecting switch sw1, The operating piece 1131 is pulled up when the third relay switch is actuated so that the S pole constituting the upper part of the body and the first magnetic holding means 1133 The N pole constituting the lower portion of the body and the S pole constituting the lower portion of the body of the first magnetic holding means 1133 are located close to each other, When the first circuit connecting switch sw1 is magnetically coupled to the holding means 1133 and the first circuit connecting switch sw1 is switched, the state of attachment of the circuit-operating ferrule 1131 continues even if the operation of the third relay switch is stopped, And the second relay switch is connected to the first relay switch and the third relay switch, the first relay switch is connected to the first relay switch, Maintenance means 1134;
The first magnetic holding means 1133 is disposed at a lower end of the circuit board 1131 at a predetermined distance from the first magnetic holding means 1133. The lower end of the first magnetic holding means 1133 is in the form of a bar magnet having an S pole, The circuit breaker 1131 is lifted from the first circuit connection switch sw1 to maintain the circuit breaker state when the third relay switch is not operated and the circuit breaker 1131 is lowered Auxiliary magnetic holding means 1133a for holding the ON state of the first circuit connecting switch sw1;
And the second magnetic holding means and the first magnetic holding means are magnetically coupled to each other so that they are not directly coupled to each other but are held in a constant gap while being magnetically coupled to each other A spacing agent 1134a for inducing the first self-sustaining means and the second self-sustaining means to naturally separate from each other at the time of disassembly;
And a control unit for controlling the operation of the alarm signal display unit when the user operates the alarm unit to interrupt the operation of the alarm signal, Further comprising a manual operation switch (1135) for stopping the operation of the wheelchair to stop outputting an alarm signal.

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