KR101358071B1 - Contact charging type power supply and pick up device using in commercial frequency - Google Patents

Abstract

Contact type power supply apparatus that can be used at a commercial frequency of the present invention comprises a commercial power supply for supplying commercial power; A power supply device compensation circuit unit configured to compensate for a voltage drop generated when power is supplied from the commercial power supply unit to maximize a power supply current; A primary coil winding unit magnetically coupled to the secondary coil winding unit of the current collector installed under the vehicle to supply power; And a power control unit which senses the feed current and cuts off the power supplied from the commercial power supply unit when the feed current rapidly increases. According to the present invention, when the vehicle is stopped, the slow current charging is performed in a contact manner between the current collector installed at the bottom of the vehicle and the power feeding device using 60 kW commercial power, so that the vehicle is not charged by using an expensive inverter. This can dramatically reduce the cost of building the system.

Description

CONTACT CHARGING TYPE POWER SUPPLY AND PICK UP DEVICE USING IN COMMERCIAL FREQUENCY}

The present invention relates to a contact type current collector that can be used at a commercial frequency, and more particularly, to a current feeding device installed at a lower portion of a vehicle and a power supply using 60 kW commercial power without an inverter when the vehicle is stopped. The present invention relates to a contact type current collector that can be used at a commercial frequency in which slow charging is performed in a contact manner insensitive to vertical, horizontal, left and right alignment deviations.

The existing plug-in charger for charging a battery of an electric vehicle can be charged slowly using a 60 ㎐ commercial power source or rapidly charged using high frequency, but it is inconvenient for the user to connect the power line directly to the vehicle. In addition to this, there are risks such as a short circuit and an electric shock.

In addition, the wireless charging device during the stop needs an inverter by using only high frequency, and in this case, the cost of the inverter is high, so there is a problem in that the cost required to build a charging system increases.

In addition, the wireless charging device during the stop is very sensitive to the vertical, horizontal, front and rear alignment deviations of the power supply device including the power feeding core and the power feeding cable and the current collecting device including the power feeding core and the current collecting cable. When this occurs, there is a problem that the power delivered from the power supply to the current collector is sharply reduced.

KR 10-0299009 B1

The present invention was devised to solve such a problem, and improves the inconvenience and risk of the aforementioned conventional electric vehicle charging device, and does not use a current collector and an inverter installed at the bottom of the vehicle when the vehicle is stopped. It is an object of the present invention to provide a contact feeder that can be used at a commercial frequency to allow slow charging between the feeders that use 60 GHz commercial power.

In addition, when the vehicle is stopped, it is possible to perform slow charging by insensitive to the vertical, horizontal, front and rear alignment deviations of the power supply device using a 60 ㎐ commercial power source without using a current collector and an inverter installed at the bottom of the vehicle. An object of the present invention is to provide a contact type current collector that can be used at a commercial frequency.

In addition, it is an object of the present invention to provide a contact type current collector that can be used at a commercial frequency to have a structure that minimizes the weight and volume of the current collector attached to the lower portion of the vehicle.

According to an aspect of the contact type feeder that can be used at a commercial frequency according to the present invention for achieving the above object, a commercial power supply for supplying commercial power; A power supply device compensation circuit unit configured to compensate for a voltage drop generated when power is supplied from the commercial power supply unit to maximize a power supply current; A primary coil winding unit magnetically coupled to the secondary coil winding unit of the current collector installed under the vehicle to supply power; And a power control unit which senses the feed current and cuts off the power supplied from the commercial power supply unit when the feed current rapidly increases.

In addition, according to one aspect of the contact current collector that can be used at the commercial frequency according to the present invention for achieving the above object, magnetically coupled with the primary coil winding of the contact feeder that can be used at commercial frequency Secondary coil windings that receive power; A current collector compensation circuit unit magnetically coupled to the primary coil winding of the power feeding device to maximize a current collecting current by compensating for a voltage drop generated when power is transferred from the secondary coil winding; And a converter unit converting the voltage compensated by the current collector compensation circuit unit into a voltage required by the load.

In addition, according to an aspect of the contact charging type power feeding device according to the present invention for achieving the above object, a flat feed core; A feed cable provided in the flat feed core; And a plurality of core rods disposed perpendicularly to an upper surface of the flat feed core.

In addition, according to an aspect of the current collector of the contact type charging method according to the present invention for achieving the above object, a flat type current collector core installed in the lower portion of the vehicle; A current collecting cable provided in the plate-type current collecting core; And a skate blade-shaped core plate disposed vertically at a predetermined interval on a lower surface of the plate-type current collector core.

According to the present invention, when the vehicle is stopped, the slow current charging is performed in a contact manner between the current collector installed at the bottom of the vehicle and the power feeding device using 60 kW commercial power, so that the vehicle is not charged by using an expensive inverter. This can dramatically reduce the cost of building the system.

In addition, when the vehicle is stopped, the slow current charging is made in contact with the current collector installed on the lower part of the vehicle and the vertically, left, right, and rear alignment deviations of the power feeding device using a 60 전원 commercial power source without using an inverter. There is an effect that can be delivered normally without suddenly reducing the power delivered to the current collector.

In addition, there is an effect to improve the inconvenience and risk of the existing electric vehicle charging device, and to minimize the weight and volume of the current collector attached to the lower portion of the vehicle.

1 is a circuit diagram of a wireless charging device using a high frequency.
Figure 2 is a schematic diagram of the electrical circuit of the contact charging device using a commercial frequency.
3 is an overall circuit diagram of a commercial frequency contact wireless charging device.
4 is a diagram illustrating an equivalent circuit of a power supply device when the current collector does not come up on the power supply device.
FIG. 5 is a view showing an equivalent circuit at the time of switching off of the power supply control device in FIG.
6 is an equivalent circuit diagram of a slow and quick charger dual charging device in the case of a voltage source input.
7 is an equivalent circuit diagram of a slow and quick charger combined charging device in the case of a current source input.
8 is a view showing a structure of a power supply device insensitive to alignment deviation according to an embodiment of the present invention.
9 is a view showing another example of the power supply device insensitive to alignment deviation in FIG.
10 is a front view of the structure of the power supply device of the present invention.
11 is a front view of a conventional brush type current collector structure.
12 is a side view of the structure of the power supply device of the present invention.
13 is a front view of the structure of the power supply device of the present invention.
14 is a plan view of a power supply structure of the present invention.
15 is a plan view of the structure of the power supply device of the present invention.
16 is a side view of a feeder structure of the feeder variable structure of the present invention.
Figure 17 is a side view of the current collector structure of the current collector variable structure of the present invention.
18 is a view showing types of feed core rods.
19 is a view showing the type of current collector core blades;
20 is a diagram illustrating a power feeding device using a core plate.
21 is a view showing an example of a winding method of a power supply cable.
22 is a diagram showing another example of the winding method of the feeder cable.
23 is a view showing a detailed structure of a core plate for safety.
24 to 26 are views showing various structures of the core rod for safety.
27 is a view showing an example in which the core rod completely wrapped with a safety cap is in contact with the current collector core blade.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a schematic diagram of an electric circuit of a wireless charging apparatus using a high frequency, and FIG. 2 is a schematic diagram of an electrical circuit of a contact charging apparatus using a commercial frequency.

As shown, the high frequency wireless charging device includes a rectifier circuit and an inverter 260, a feed coil compensation circuit unit 270, a magnetic coupling coil 280, a current collector coil compensation circuit unit 290, a rectifier and a regulator ( 300 and a battery 310. That is, the high frequency wireless charging device essentially requires a rectifier circuit and an inverter 260 to generate high frequency. This leads to an increase in the manufacturing cost of the charging device. In addition, a regulator is necessary at the rear of the current collector. On the contrary, the commercial frequency contact type charging device of FIG. 2 includes a feeder compensation circuit unit 270 for maximizing a feed current by compensating for a voltage drop generated when power is supplied from a commercial power supply unit, a feeder primary coil and a collector secondary coil. The magnetic coupling coil 280 magnetically coupled to transfer power, and the current collector magnetically coupled to the power supply device to compensate for the voltage drop generated in the current collector during power transfer in the power supply device to maximize the current collection current. Compensation circuit unit 290, and a rectifier 320 and a battery 310 for converting the alternating current into a direct current. In other words, since the commercial frequency contact type charging device uses the commercial frequency as it is, a rectifier circuit and an inverter are not required at the input terminal, thereby implementing a cheap charging device. In addition, the regulator is generally required, but when implementing a very simple type of charging device, the regulator may be excluded at the rear of the current collector. 2 shows a schematic diagram of an electric circuit of a very simple type of contact charging device.

3 is an overall circuit diagram of a commercial frequency contact wireless charging device.

As shown in FIG. 3, the commercial frequency contact type wireless charging device of the present invention includes a commercial power source 330, a power control device 340, a detachable transformer 350, and a current collector coil compensation circuit unit 360. And a load side power supply 370 and a load 380.

The commercial power source 330 generally refers to a 200 V 60 Hz single phase power source for home use.

The power control device 340 is such that when the current collector does not come up to the power supply device, L1 is reduced by several tens to several hundred times compared to when the current collector came up to the power supply device so that excessive current of several hundred times flows to the power supply side. Control so that the power can be cut off so that it does not flow.

The detachable transformer 350 may be equivalent to a transformer when the current collector attached to the lower part of the vehicle is on the power supply device on the road floor, and may not be equivalent to a transformer when the current collector is not on the power supply device. .

The current collector coil compensation circuit 360 is magnetically coupled to the power supply device to maximize the current collection current by compensating for the voltage drop generated in the current collector when power is transferred from the power supply device.

The load-side power supply unit 370 refers to a DC-DC converter for converting the voltage obtained from the current collector into a voltage required by the load 380.

4 is a diagram illustrating an equivalent circuit of a power supply device when the current collector does not come up on the power supply device.

As shown in FIG. 4, the current I _S = V _S / ωL ₁ flowing in the power feeding device. If the current collector does not come up on the power feeding device, L1 is reduced by several tens to several hundred times, causing a problem that excessive current of several hundred times flows on the feeding side. In order to solve this problem, a power control device 340 is required as described with reference to FIG. 3. The power control device 340 may be implemented by mechanically or electrically shutting off power when the power supply current increases rapidly.

The operating principle of the electrical cutoff method is that when the power control device 340 senses the voltage across the feed current Is or L1 and the current or voltage increases rapidly, the switch 341 connected in parallel with Rs in FIG. 3 is turned off. . The equivalent circuit when the switch 341 is Off is shown in FIG.

FIG. 5 is a diagram illustrating an equivalent circuit at the time of switching off of the power supply control device in FIG. 3.

As shown in FIG. 5, when the switch 341 is turned off, the feed current flows through Rs. At this time, if Rs is set to a sufficiently large value (about 100 kΩ), the input current is limited by Rs because L1 is already several tens to several hundred times smaller. In other words, the feeding current I _S ≒ V _S / R _{S at this time} is such that only a very small current flows through the feeding.

In addition, when the current collector comes up to the power supply device, the voltage across the L1 increases because L1 increases by several tens to several hundred times. When the voltage across the L1 is increased by a predetermined level or more, the power supply controller 340 turns on the switch connected in parallel with Rs so that power is normally supplied to the current collector. By doing so, it is possible to solve the problem of excessive feed current flowing.

In addition, when foreign matters of metals other than the current collectors are raised on the power supply device, the power supply device may regard this as a current collector and may supply a current, so a method of detecting foreign matters is required. This problem can be solved by sensing the phase of the input voltage Vs and the input current Is. If the current collector is placed on the power supply, the current collector cancels out all the inductance components by the compensation capacitor, so that only the resistance component due to the load exists. Therefore, the phase difference between the input voltage Vs and the input current Is does not occur. If foreign matters of metals are raised, the metals are inductance, so the phase difference between Vs and Is is about 90 degrees. In this case, turn off the power supply so that the power supply device does not operate. The foreign material can be detected by sensing the phase of the input voltage Vs and the input current Is.

FIG. 6 is an equivalent circuit diagram of a slow and quick charger dual charging device in the case of a voltage source input, and FIG. 7 is an equivalent circuit diagram of a slow and rapid charger dual charger in the case of a current source input.

As shown in the drawing, a method of using a current collector as a commercial frequency as well as a high frequency is proposed. That is, when the same current collector is applied to a feeder using a commercial frequency, it operates as a slow charger, and when applied to a feeder using a high frequency, it operates as a fast charger. The first inductor Ls, the first capacitor Cs, the second inductor Lr, and the second capacitor Cr are connected in parallel to the current collector. The first inductor Ls and the first capacitor Cs are resonated at a commercial frequency, and the second inductor Lr and the second capacitor Cr are resonated at a high frequency. When the circuit is configured in this way, when the input is at a commercial frequency (slow charging), the current of the current collector flows through Ls and Cs to operate as a slow charger. In addition, when the input is a high frequency (fast charging), the current of the current collector all flows through the Lr, Cr to operate as a rapid charger. In this way, the same current collector can be used for both commercial frequency and high frequency. In Figures 6 and 7, which show the resonant method of each of the power supply devices when the input is used as a voltage source or a current source, respectively, a capacitor is installed in parallel to the rectifier circuit input at the output terminal rather than in series resonance as a circuit combining both commercial frequency and high frequency. More preferably. In other words, the capacitor has almost no load effect at the commercial frequency, and acts as a resonant capacitor for the purpose of canceling the inductance of the output stage only at high frequencies. Thus, there are cautions when using the current collector as a commercial frequency and high frequency. The current collector is to be of a material that can also be used for high frequencies. That is, the wire should be a material having a low resistance at high frequencies, such as the Litz wire, and the core should also be a material capable of satisfying conditions such as high permeability at high and commercial frequencies. For example, it is preferable to use ultra-thin silicon steel sheet (20um thickness).

8 is a view showing the structure of the power supply device insensitive to alignment deviation according to an embodiment of the present invention, Figure 9 is a view showing another example of the power supply device insensitive to the alignment deviation in FIG.

As shown in FIG. 8, a flat feed core 10, a feed cable 20 wound around the center of the flat feed core 10, and a top surface of the flat feed core 10 are provided. Using the structure of the power feeding device composed of a vertical core rod 30 made of a flexible and elastic material and the skating blade shape current collecting core 40 wound around the current collecting cable 50, Insensitive contact charging device can be implemented. In addition, there is an advantage that a problem does not occur even when the vehicle enters the feeder at an angle, and the current collector can be minimized by making the feeder large. Install the feeder on the parking lot or on the floor of the road and attach the current collector to the underside of the vehicle. When the vehicle moves and comes up on the power feeding device, the current collector core 40 having a skate blade shape passes between the core rods 30. As a result, the blade of the current collector core 40 is in contact with the core rod 30 of the plate-type power supply core 10 and the magnetic flux generated from the power feeding device is transferred to the current collecting device. In order to allow the blade of the current collector core 40 to smoothly pass between the core rods 30, the blades of the current collector core 40 may be connected to each other by the insulator 60. As indicated by the red circle in FIG. 8, the cross section of the core rod 30 may be circular, square, or polygonal.

10 is a front view of the structure of the power supply device of the present invention.

As shown in FIG. 10, since the blade portion of the current collector core 40 passes between the core rods 30, the core rod 30 and the current collector core 40 blades come into contact with each other as indicated by a red circle. In addition, the tip of the core rod 30 and the current collector core 40 are also in contact. The distance w _o between the edges of the current collector cores 40 so that a plurality of core rods 30 enters and contacts the current collector cores 40 between the current collector cores 40 is greater than the thickness t _{o of the} edges of the current collector cores 40. It is preferable to produce 3-5 times larger.

11 is a front view of a conventional brush type power supply device structure.

As shown in FIG. 11, in the existing brush structure, only the end of the core rod 30 comes into contact with the current collecting core 100 as indicated by the red circle. However, as can be seen in Figure 10, the feeder coil structure proposed in the present invention is not only the end of the core rod 30, but also the effective area through which the magnetic flux passes because the entire core rod 30 and the current collector core 40 blade contact Effective area is increased to reduce the overall magnetoresistance. As a result, the current collector core can be designed to be smaller, thereby realizing the current collector weight reduction.

12 is a side view of the power supply structure of the present invention, and FIG. 13 is a front view of the power supply structure of the present invention.

As shown in the drawing, the distance between the bottom of the current collector core 40 attached to the vehicle lower part 90 and the ground is preferably 20 to 30 cm based on the road regulation. It is preferable that the height of the core rod 30 vertically extended to allow the core rod 30 to be in sufficient contact with the current collector core 40 is also 20 to 30 cm. It is a figure which shows the situation with the lowest height of a garage (vehicle height). The vehicle bottom surface is in contact with the power supply device protection wall 110. Vehicles with lower garages are blocked by the protection wall 110 to prevent entry, thereby preventing damage to the power supply device. In addition, by making the vehicle guide groove in the vehicle left and right directions so that the power supply device is within a certain range. Similarly, by installing a vehicle wheel stopper on the ground, it is possible to adjust the forward and backward range of the power supply device.

14 is a plan view of a power supply structure of the present invention.

As shown in FIG. 14, the current collector is advantageously minimized since it is attached to the lower part of the vehicle. The width w _p and the length l _p of the current collector are preferably about 30 cm and 50 cm, respectively. Since it is difficult for the vehicle to accurately enter the center of the power feeding device, a space of about 30 cm is required in the left and right directions of the vehicle. Therefore, the width w _r of the power feeding device is preferably about 90 cm. In addition, there is also a need to afford in the front and rear direction, which can be minimized by using a stopper that is widely used in parking lots. Still, since about 10 cm margin is required in the front and rear directions, the length (l _r ) of the power feeding device is preferably manufactured to about 110 cm. In order to make the current collector core 40 blade easily pass through the core rod 30, it is preferable to sharpen the tip of the blade as indicated by the red circle.

FIG. 15 is a view illustrating a situation in which a vehicle emerging as a problem of a conventional charging device enters a power feeding device at an angle. In the structure of the feeder coil of the present invention, even if the vehicle enters the feeder at an angle, the current collector core 40 blade and the core rod 30 are in contact with each other, so that power can be transmitted without great effort, thereby improving user convenience. This is one of the great advantages of the power supply device proposed in the present invention.

FIG. 16 is a view illustrating a variable feeding structure for preventing a safety accident due to a vertically extending core rod and preventing damage to a power feeding device.

As shown in FIG. 16, normally, the power supply device enters the road, and then when the vehicle enters the power supply device, the opening and closing hole 120 is opened to raise the power supply device to the ground. Entry of the vehicle is to be identified by the sensor 130 attached to the vehicle lower portion 90 and the sensor 140 attached to the ground. The sensor 130 attached to the vehicle may be located in various places such as the lower part of the vehicle, the lower part of the current collecting core, the vehicle wheel, and the like. ) Can be operated. In addition, various sensors may be used. In addition, the structure for lifting the power supply device to the ground when entering the vehicle may be a variety of structures, such as hydraulic, spring.

17 illustrates a current collecting variable structure for preventing damage to the current collector by a speed bump while driving a vehicle.

As shown in FIG. 17, the current collector is normally inside the vehicle, and then the opening and closing opening 91 opens when the vehicle enters the power feeding device. The entry of the vehicle is determined by the sensor 130 attached to the lower portion of the vehicle and the sensor 140 attached to the ground. Sensor 130 attached to the vehicle can be located in a variety of places, such as the lower part of the vehicle, the bottom of the current collector core, the vehicle wheel, and installed the pressure sensor in the place where the vehicle passes as well as the wireless sensor to detect the entry of the vehicle opening and closing (91) Can be operated. In addition, various sensors may be used. In addition, the structure to lower the current collector when entering the vehicle may be a variety of structures, such as hydraulic, spring.

18 is a diagram illustrating the types of feed core rods.

As shown in FIG. 18, the core rod 30 may not only have a rod shape but also have a long elongated core plate 150. In addition, it may be a core plate 160 type divided into several in the longitudinal direction. In the core plate structure, a pointed tip is preferable as in the current collector core blade. This makes it easier for the collector core blade to enter between the core plates. In addition, in order to easily produce a core rod and a core plate, it is preferable to produce one core rod and a core plate by combining several rods and plates as shown in the enlarged picture. Combining several rods and plates to form a core rod and a core plate is advantageous in that the contact area with the current collector core blade increases. In the case of the core rod 30, a magnetic material surrounded by several strands of insulator may be twisted.

19 is a diagram illustrating the type of current collector core blades.

As shown in FIG. 19, the blade 170 of the current collecting core 40 also has the same shape as the core rod 190 or the core plate 190 divided into several in the longitudinal direction, similar to the feed core rod described above in FIG. 18. It can be of several kinds. Each manufacturing method and features are the same as those of FIG. 18, and thus detailed descriptions thereof will be omitted.

20 is a diagram illustrating a power feeding device using a core plate.

As shown in FIG. 20, since the core plate 150 is also very flexible and has good elasticity similarly to the core rod, even if the collector core 40 blade enters the core plate 150 at an angle, the collector core 40 blade and the core plate ( 150 is gently contacted.

FIG. 21 is a diagram illustrating an example of a winding method of a feeder cable, and FIG. 22 is a diagram illustrating another example of a winding method of a feeder cable.

As shown in FIG. 21, a pair of feed cables 70 are arranged in a structure surrounding a plurality of core rods 30 on the feed core 10, and a plurality of current collector cores are disposed on the current collector core 40. (40) A pair of current collecting cables 80 are arranged in a structure surrounding each blade. In FIG. 22, a pair of feed cables 200 are arranged in a structure surrounding a plurality of core rods 30 on the feed core 10, and the plurality of current collector cores 40 blades are disposed on the current collector core 40. A pair of current collecting cables 210 are arranged in a structure surrounding each of them. As such, the winding structure capable of winding the feed / collecting cable widely has the advantage of low heat generation because the contact area between the cable and the air is wide.

It is a figure which shows the detailed structure of the core board for safety.

As shown in FIG. 23, the blade 170 of the current collector core 40 is configured to have a sharp end portion in order to more easily enter the core plate 150 of the power feeding core 10. There is a danger. In order to solve this problem, it is preferable to make the end of the core plate sharply as shown in the enlarged image of the core plate, but to make the end flat.

24 to 26 are views showing various structures of the core rod for safety.

As shown, in order to further reduce the risk of the aforementioned safety accident, the end of the core rod 30 as shown in Figure 24 can be fitted with a safety cap 220 made of a soft material such as rubber. In addition, as shown in FIG. 25, the safety caps 230 and 240 may completely wrap the core rods 30 or wrap only the portions that do not contact the current collector core blades. And the core rod 250 as shown in Figure 26 may be a structure that is not sharp because the end is bent.

27 is a view showing an example in which the core rod completely wrapped in the safety cap is in contact with the current collector core blade.

As shown in FIG. 27, when the current collector core blade 170 and the plurality of core rods 30 come into contact with each other, the air gap between the current collector core blade 170 and the core rod 30 is prevented due to the safety cap 230. gap) occurs. This acts as a disadvantage of increasing the magnetoresistance. However, in the case of the circular core rod, the area where the flat core collector core blade and the circular core rod contact each other is very small when there is no safety cap, whereas the current collector core blade 170 and the core rod 30 are secured due to the safety cap 230. As shown in the drawing, when the safety cap 230 is pressed, the area where the current collector core blade 170 and the core rod 30 are in contact increases, thereby slightly alleviating the increase in the magnetoresistance, thereby solving both safety and performance problems. have.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

10: flat feed core 20: feed cable
30: core rod 40: current collector core
50: current collecting cable 60: insulator

Claims (22)

Contact feeder that can be used at commercial frequency,
A commercial power supply unit supplying commercial power;
A power supply device compensation circuit unit configured to compensate for a voltage drop generated when power is supplied from the commercial power supply unit to maximize a power supply current;
A primary coil winding unit magnetically coupled to the secondary coil winding unit of the current collector installed under the vehicle to supply power; And
It includes a power control unit for detecting the power supply current to cut off the power supplied from the commercial power supply when the power supply current rapidly increases,
The power control unit includes a switch for switching on / off commercial power supplied from the commercial power supply unit and a current limiting resistor that is connected in parallel with the switch to limit the feed current when the feed current is rapidly increased and the switch is turned off. The power control unit may turn off the switch in parallel with the switch when a current flows due to a decrease in inductance value of the primary coil winding part when the current collector installed in the lower part of the vehicle does not rise above the power supply device installed on the road floor. Contact feeder that can be used at commercial frequencies to limit the feed current by a current limiting resistor with a value of 100 Ω or more connected.
delete delete delete The method according to claim 1,
The power control unit turns on the switch when the current collector installed in the lower portion of the vehicle rises above the feeder installed on the floor of the road and the inductance value of the primary coil winding increases, so that the voltage at both ends of the primary coil winding increases above the reference voltage. Normal power supply to current collector
Contact feeder that can be used at commercial frequencies, characterized in that.
Contact current collector that can be used at commercial frequencies,
A secondary coil winding unit magnetically coupled to the primary coil winding unit of the contact feeding device usable at the commercial frequency of claim 1 to receive power;
A current collector compensation circuit unit magnetically coupled to the primary coil winding of the power feeding device to maximize a current collecting current by compensating for a voltage drop generated when power is transferred from the secondary coil winding; And
A converter unit converting the voltage compensated by the current collector compensation circuit unit into a voltage required by the load,
The current collector compensation circuit unit is connected in series to the current collector and resonates at a commercial frequency in parallel with the first inductor Ls, the first capacitor Cs, and the first inductor Ls and the first capacitor Cs. A second inductor (Lr) and a second capacitor (Cr) connected to and resonated at a high frequency, and when the input is a commercial frequency, the current of the current collector is all the first inductor (Ls) and the first capacitor (Cs) It flows through the slow charger, and when the input is a high frequency, the current of the current collector all flows through the second inductor (Lr) and the second capacitor (Cr) can be used at a commercial frequency operating as a rapid charger Contact current collector.
delete As a contact charging type feeding device,
Flat feed cores;
A feed cable provided in the flat feed core; And
It includes a plurality of core rods having an elastic force disposed perpendicular to the upper surface of the flat feed core,
The feed cable has a plurality of arranged in a shape surrounding a plurality of core rods arranged on the upper surface of the flat-type feed core, the contact charging method further comprises a safety cap surrounding part or all of the core rods Feeding device.
delete delete The method according to claim 8,
The core rod has a cylindrical or square column shape
Feeding device of the contact charging method characterized in that.
delete The method according to claim 8,
The feeding device is installed on the road
Feeding device of the contact charging method characterized in that.
The method according to claim 13,
Further comprising a 'c' shaped protection member surrounding the power feeding device installed on the road
Feeding device of the contact charging method characterized in that.
The method according to claim 8,
The feeder is buried under the road
Feeding device of the contact charging method characterized in that.
16. The method of claim 15,
A sensor for detecting a vehicle entering a power feeding device buried under the road;
An opening / closing member installed on an upper portion of a power feeding device buried under the road and opened when a vehicle entrance notification signal is transmitted from the sensor; And
When the opening member is open further includes a drive unit for discharging the power feeding device buried under the road on the ground
Feeding device of the contact charging method characterized in that.
As a contact charging current collector,
A flat plate collector core installed at a lower portion of the vehicle;
A current collecting cable provided in the plate-type current collecting core; And
A skating blade-shaped core plate disposed vertically at a predetermined interval on a lower surface of the flat plate current collector core,
The current collecting cable is disposed in a shape surrounding the plurality of core plates arranged on the lower surface of the flat plate current collector core, the plurality is arranged, the end of the core blade of the skate blade shape is formed sharply and pointed The end of the current collector of the contact charging method having a flat structure, and further comprising a connecting member for connecting the core plate is inserted into the groove formed in the center lower portion of the plate-shaped current collector core divided into two sides.
delete delete delete 18. The method of claim 17,
The current collector is installed inside the vehicle
Contact charging current collector, characterized in that.
23. The method of claim 21,
A sensor attached to a lower portion of the vehicle and configured to sense a power feeding device installed on a road;
An opening / closing member installed under the current collector installed inside the vehicle and opened when a power supply device proximity signal is transmitted from the sensor; And
When the opening member is open further comprises a drive unit for discharging the current collector installed inside the vehicle below the opening member;
Contact charging current collector, characterized in that.

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