JP2003274515A - Charging system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems that, when charging a battery mounted on an unmanned transport car, a power source is conventionally required for making the receiving terminals of the unmanned transport car contact the supply terminals of a charger, and the mechanism of contacting the receiving and supply terminals is complicated. <P>SOLUTION: A trapezoidal plate cam 22 is provided on one side of the car body of the unmanned transport car 3, an arm 19 that projects to the side of a guideline 1 as a traveling path for the car 3 on the front of the charger 20, and guide rollers 28, 29 on the end part of the arm 19. The trapezoidal plate cam 22 is configured to contact the guide rollers 28, 29 as the car 3 travels to the charger 20 side on the guideline 1. The contact of the cam 22 with the guide rollers 28, 29 causes the arm 19 to slide so that the receiving terminals 23, 24, provided on the side of the car body of the car 3, are configured to contact sending terminals 26, 27 of the charger 20. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging system for charging a battery mounted on a transportation vehicle such as a forklift truck from a charging device fixedly installed on the ground side.

[0002]

2. Description of the Related Art An automated guided vehicle requires electric power for traveling and control, and a battery (rechargeable secondary battery) is installed as a power source in the vehicle. When charging the battery, the automatic guided vehicle stops in front of the charging device fixedly installed on the ground side.

When it is detected that the automatic guided vehicle has stopped in front of the charging device, as shown in FIG. 8, the power transmission terminal feeding arm 9 is driven by the electric motor 11 from the main body side of the charging device 8 to the automatic guided vehicle 5 side. The power transmission terminal 10 provided at the tip of the arm 9 moves forward to the power transmission terminal feeding position 12 drawn by the broken line, and comes into contact with the power reception terminal 6 of the automatic guided vehicle 5.

The power transmission terminal 10 is connected to a charging DC power source 13 in the charging device 8, and the power receiving terminal 6 is also connected.
Is connected to the battery 7 in the automatic guided vehicle 5,
As described above, the power transmission terminal 10 of the charging device 8 is connected to the automated guided vehicle 5
When contacting the power receiving terminal 6 of No. 3, the charging DC power source 13 of the charging device 8 and the battery 7 of the automatic guided vehicle 5 are connected, and the charging of the battery 7 is started.

When the battery 7 is completely charged,
Driven by the electric motor 11, the power transmission terminal feeding arm 9 retracts toward the main body of the charging device 8, the contact between the power reception terminal 6 and the power transmission terminal 10 is released, and the power supply to the battery 7 is stopped.

When the charging of the battery 7 is completed in this way, the automatic guided vehicle 5 starts traveling.

[0007]

As described above, in the conventional charging system, the power transmission terminal feeding arm 9 provided with the power transmission terminal 10 is moved to the side of the automatic guided vehicle 5 by using the electric motor 11, thereby unmanned. A complicated mechanism for bringing the power receiving terminal 6 of the carrier vehicle 5 and the power transmitting terminal 10 of the charging device 8 into contact with each other has been required. Moreover, since the electric motor 11 is used, the AC power supply 15 for driving the electric motor 11 is required.

In consideration of the above-mentioned problems of the prior art, the present invention provides a charging method for bringing a power receiving terminal of a vehicle and a power transmitting terminal of a charging device into contact with each other with a simple structure and for charging a battery mounted on the vehicle. It is an object of the present invention to provide a charging system that does not require a power source for bringing the power receiving terminal of the carrier vehicle and the power transmitting terminal of the charging device into contact with each other.

[0009]

In order to solve the above problems, a charging system of the present invention comprises a charging device for charging a battery of an automatic guided vehicle by bringing a power transmission terminal into contact with a power receiving terminal of the automatic guided vehicle. In the charging system, the charging device includes a guide portion that abuts on the unmanned guided vehicle and is pushed to a side of the traveling path as the unmanned guided vehicle travels, and the guide portion is integrated with the guided portion. And a power transmission terminal that is pushed to the side of the power transmission terminal, and the pushed power transmission terminal comes into contact with a power receiving terminal that has been traveling along with the traveling of the automatic guided vehicle.

According to the present invention, the guide portion and the power transmission terminal extend to the position where they come into contact with the vehicle body, and the guide portion comes into contact with the vehicle body when the automatic guided vehicle travels. The guide portion and the power transmission terminal can be integrally moved to the side of the vehicle body, and when the guide portion comes into contact with the vehicle body, the guide portion is pushed toward the vehicle body side while coming into contact with the vehicle body. The power transmission terminals move to the side of the vehicle body by the same movement distance as the guide portion. The power transmission terminal is at a height where it contacts the power reception terminal of the automated guided vehicle, and the power transmission terminal that has moved to the side of the vehicle body comes into contact with the power reception terminal that has been traveling as the vehicle body travels.

That is, according to the present invention, in order to bring the power transmitting terminal into contact with the power receiving terminal, a driving mechanism for driving the power transmitting terminal as in the conventional case is not used, and the power transmitting terminal is naturally utilized by using the traveling movement of the automatic guided vehicle. To contact the power receiving terminal.
In particular, rather than abutting the power transmission terminal on the vehicle body and pushing it toward the vehicle body side, by pushing the power transmission terminal toward the vehicle body side via the guide part, the power transmission terminal and the power receiving terminal are initially The power transmission terminal and the vehicle body are positioned in the lateral direction of the vehicle body by contacting the guide portion and the vehicle body once so that the power transmission terminal softly abuts the power receiving terminal. As a result, wear and the like of the power transmission terminal and the power reception terminal can be reduced, the contact surfaces of the power transmission terminal and the power reception terminal can be kept good, and charging can be performed well.

The following is a configuration that further embodies the configuration of the present invention. The guide portion is not directly in contact with the vehicle body, but is in contact with a protrusion provided on the side surface of the vehicle body to protect the vehicle body frame. The carrier vehicle has a protrusion provided on one side surface of the vehicle body and a power receiving terminal provided on the one vehicle body side surface and connected to the battery. It is possible to protect the vehicle body frame by directly contacting the guide portion with the protrusion provided on the side surface of the vehicle body without directly contacting the vehicle body.

Further, in the charging device, the arm protruding from the front surface of the main body of the apparatus toward the traveling road in a direction orthogonal to the predetermined traveling road on which the transport vehicle travels, and the guide portion provided at the tip of the arm. And a power transmission terminal provided at the tip of the arm and connected to the charging section. Then, the charging device is installed at a position where the guide portion can come into contact with the protrusion of the transport vehicle traveling on the predetermined traveling path.

Further, the arm of the charging device is provided with the guide portion by the force from the protrusion of the transportation vehicle when the one vehicle body side surface of the transportation vehicle and the charging device body front surface face each other. Has a mechanism for moving the above to the apparatus main body side.

Further, when the one side surface of the vehicle of the transport vehicle and the front surface of the main body of the charging device face each other, the power transmission terminal of the charging device and the power receiving terminal of the transport vehicle can be brought into contact with each other. The power transmission terminal and the power reception terminal are provided.

In the charging system of the present invention thus constructed, in addition to the charging section for charging the battery mounted on the carrier, the power receiving terminal of the carrier and the power transmitting terminal of the charging device are brought into contact with each other. The power supply terminal connected to the battery on the transport vehicle side and the power transmission terminal connected to the charging unit on the charging device side are brought into contact with each other with a simple configuration without requiring the power supply of It becomes possible to charge.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

First, in FIG. 1, for the purpose of charging the battery mounted on the automatic guided vehicle 3, the automatic guided vehicle 3 is
It shows how the vehicle travels on the guideline 1 as a traveling path toward the charging device 20, that is, in the direction of arrow 2 in an attempt to stop in front of the charging device 20.

Note that the dimensions of each component in FIG. 1 are exaggerated for ease of explanation. The same applies to other drawings.

The configuration of the charging system according to the present embodiment will be briefly described with reference to FIG.

As shown in FIGS. 1 and 2, a trapezoidal plate cam 22 as an example of a protrusion is provided on the side surface of the vehicle body facing the charging device 20 of the automatic guided vehicle 3 according to the present embodiment.
And a plate cam provided with the power receiving terminals 23 and 24.
A power receiving terminal board 21 is provided. The trapezoidal plate cam 2
Reference numeral 2 is a trapezoidal plate whose long side is located closer to the plate cam / power receiving terminal board 21 when viewed from above. 1 and 2
As shown in, the power receiving terminals 23 and 24 are provided below the trapezoidal plate cam 22. Furthermore, the power receiving terminal 23
And 24 are connected to a battery 7 (see FIG. 7) mounted in the automatic guided vehicle 3.

On the other hand, in the charging device 20, when the automatic guided vehicle 3 travels on the guideline 1 and stops at the front surface of the charging device 20, the side on which the plate cam / power receiving terminal board 21 is arranged is arranged. The following mechanism is provided at a position facing the side surface of the automatic guided vehicle 3. As shown in FIGS. 1 and 3, the mechanism has an arm 19 slidable in a direction orthogonal to the guideline 1, and a power transmission terminal board 25 provided at the tip of the arm 19. Then, the power transmission terminal board 25 is provided with guide rollers 28 and 29 as an example of a guide portion that comes into contact with the trapezoidal plate cam 22 and receives the action from the trapezoidal plate cam 22. Also,
The power transmission terminal board 25 is also provided with power transmission terminals 26 and 27 that are connected to the charging DC power supply 13 (see FIG. 7) mounted in the charging device 20. The power transmission terminal 26
1 and 27 are provided below the guide rollers 28 and 29 in the power transmission terminal board 25, as shown in FIGS.

As described above, the trapezoidal plate cam 2 of the automated guided vehicle 3 traveling on the guideline 1 to the charging device 20 side.
The guide rollers 28 and 29 project from the main body of the charging device 20 toward the guideline 1 so that the guide rollers 28 and 29 can come into contact with the guideline 1. The fact that the guide rollers 28 and 29 project to the guideline 1 side will be further described later with reference to FIG. Now, when the trapezoidal plate cam 22 of the traveling automatic guided vehicle 3 comes into contact with the guide rollers 28 and 29, and the force from the trapezoidal plate cam 22 is received by the guide rollers 28 and 29, the force causes Arm 1
The spring 30 forming a part of 9 contracts. Then,
The entire arm 19 slides away from the guideline 1, and the power transmission terminal board 25 slides toward the main body of the charging device 20 accordingly.

The power receiving terminals 23 and 2 of the automatic guided vehicle 3 are also provided.
When the battery 4 and the power transmission terminals 26 and 27 of the charging device 20 come into contact with each other, charging of the battery mounted on the automatic guided vehicle 3 is started as in the conventional case.

Next, the operation of the charging system in this embodiment will be described.

First, the operation of the automatic guided vehicle 3 traveling on the guideline 1 and stopping at a predetermined position will be described. As shown in FIG. 4, on the ground on which the automated guided vehicle 3 travels, a guideline 1 (traveling path) in which a magnetic material is embedded in the ground.
Is provided. Note that FIG. 4 shows a state when the ground side is viewed from above. Guide sensors are provided at the front and rear of the lower part of the automatic guided vehicle 3, and the guide sensors at the front and rear are located on the guideline 1.
The automatic guided vehicle 3 travels on the guideline 1.

Further, as shown in FIG. 4, the guideline 1
On both sides (upper and lower sides of the guideline 1 in FIG. 4), a large number of magnetic rods 4 in which magnetic substances are buried in a staggered manner on the ground are provided. When the automated guided vehicle 3 travels on the guideline 1 as described above, the unmanned guided vehicle 3 is counted by counting the number of the magnetic rods 4 detected by the guide sensors provided on the left and right sides of the lower portion of the automated guided vehicle 3. The carrier 3 moves the designated distance and stops at the designated position.

In the example shown in FIG. 4, since the charging device 20 is fixedly installed on the ground opposite to the guideline 1 with the magnetic rod 4i sandwiched between them, an attempt is made to charge the battery mounted on the automatic guided vehicle 3. When the automatic guided vehicle 3 travels on the guideline 1 in the direction of the arrow 2, it counts the number of the magnetic rods 4 that have passed and stops at the position where the magnetic rods 4i are provided.

Next, the automated guided vehicle 3 travels on the guideline 1 in the direction of the arrow 2, and the trapezoidal plate cam 22 provided on the automated guided vehicle 3 is provided on the charging device 20. In contact with the guide rollers 28 and 29,
The power receiving terminals 23 and 24 of the automatic guided vehicle 3 and the charging device 20
The operation of the charging system of the present embodiment when the power transmission terminals 26 and 27 of FIG.

As shown in FIG. 5A, the portion of the guide rollers 28 and 29 closest to the guideline 1 before contacting the trapezoidal plate cam 22 is the trapezoidal plate cam 22 of the automatic guided vehicle 3. Is located closer to the guideline 1 than the plate cam passage line 40 through which the outermost side of the plate passes. Note that FIG. 5A shows a state when the ground side is viewed from above. Further, as shown in FIGS. 1, 2 and 5 (a), the surface 31 of the trapezoidal plate cam 22 in the front in the traveling direction.
Is a slope. FIG. 5B shows a state in which the automated guided vehicle 3 and the charging device 20 before the trapezoidal plate cam 22 and the guide rollers 28 and 29 contact each other are viewed from the position P in FIG. As shown in FIG. 5 (b), before the trapezoidal plate cam 22 and the guide rollers 28 and 29 contact each other, when the automatic guided vehicle 3 and the charging device 20 are viewed from the position P in FIG. It can be seen that the cam 22 and the guide rollers 28 and 29 overlap.

As described above with reference to FIG. 5, since the parts of the guide rollers 28 and 29 closest to the guideline 1 are located closer to the guideline 1 than the plate cam passage line 40, the automatic guided vehicle 3 5 moves from the position shown in FIG. 5A toward the charging device 20 in the direction of arrow 2, as shown in FIG. 6A, the trapezoidal plate cam 22 of the automatic guided vehicle 3 and the charging device The guide roller 28 of 20 contacts. 6A shows the trapezoidal plate cam 22 and the guide rollers 28 and 29 as viewed from above. When the trapezoidal plate cam 22 contacts the guide roller 28 in this way, the force from the trapezoidal plate cam 22 is applied to the guide roller 28, and the force is applied.
It is added to a spring 30 forming a part of the arm 19 supporting a power transmission terminal board 25 provided with 8 and 29. Then, the spring 30 contracts, the entire arm 19 slides away from the guideline 1, and the power transmission terminal board 25 starts to move to the main body of the charging device 20.

By the way, when the trapezoidal plate cam 22 and the guide roller 28 come into contact with each other as described above, the power receiving terminal 23 of the automatic guided vehicle 3 is connected to the charging device 20 as shown in FIG. 6C. It is not in contact with the power transmission terminal 26. Similarly, when the trapezoidal plate cam 22 and the guide roller 28 come into contact with each other, the power receiving terminal 24 of the automatic guided vehicle 3 is not in contact with the power transmitting terminal 27 of the charging device 20, although not shown.
Note that FIG. 6C shows a state in which the power receiving terminal 23 and the power transmitting terminal 26 are taken out and viewed from above.

Thereafter, the automatic guided vehicle 3 is further charged by the charging device 2.
When traveling to the 0 side, the guide roller 28 rotates to smoothly advance the trapezoidal plate cam 22 of the automatic guided vehicle 3 so that the top 16 of the trapezoidal plate cam 22 also contacts the guide roller 29. become. Then, when the automatic guided vehicle 3 further travels to the charging device 20 side, FIG.
As shown in, the top 16 of the trapezoidal plate cam 22 and the guide rollers 28 and 29 are opposed to each other.
In this way, when the top 16 of the trapezoidal plate cam 22 and the guide rollers 28 and 29 face each other, the automatic guided vehicle 3 stops, and at that time, as shown in FIG. 6B, the guide rollers 28 and 29. Moves from the position before contacting the trapezoidal plate cam 22 to the charging device 20 main body side by a distance a. At that time, the power transmission terminal board 25 comes closest to the main body of the charging device 20.

In this way, the power transmission terminal board 25 is connected to the charging device 2
0. When closest to the main body side, as shown in FIG. 6D, the power transmission terminal 26 of the charging device 20 has a distance a from the position before the trapezoidal plate cam 22 contacts the guide rollers 28 and 29. 20 and the power receiving terminal 23 of the automatic guided vehicle 3 and the power transmitting terminal 26 of the charging device 20 come into contact with each other. Similarly, when the power transmission terminal board 25 comes closest to the main body of the charging device 20, the power receiving terminal 24 of the automatic guided vehicle 3 and the power transmission terminal 27 of the charging device 20 also come into contact with each other, although not shown. Note that FIG. 6D shows a state in which the power receiving terminal 23 and the power transmitting terminal 26 are taken out and viewed from above.

FIG. 7 shows a trapezoidal plate cam 22 of the automatic guided vehicle 3.
16 and the guide rollers 28 and 2 of the charging device 20.
9 shows the automatic guided vehicle 3 and the charging device 20 when the power transmission terminal board 25 is closest to the charging device 20 main body side. FIG. 7A is a view of the automatic guided vehicle 3 and the charging device 20 seen from above, and FIG. 7B is a side view.

As shown in FIGS. 6 (d) and 7 (b),
When the power transmission terminal board 25 comes closest to the main body of the charging device 20,
As described above, the power receiving terminals 23 and 24 of the automatic guided vehicle 3 and the power transmitting terminals 26 and 27 of the charging device 20 are in contact with each other. At that time, the repulsive force of the spring 30 (elastic force toward the guideline 1 side)
Thus, the contact pressure between the power receiving terminal 23 and the power transmitting terminal 26 and the contact pressure between the power receiving terminal 24 and the power transmitting terminal 27 are kept constant, respectively, and the power receiving terminals 23 and 24 and the power transmitting terminals 26 and 27 are in good contact with each other. .

As described above, the power receiving terminals 23 and 24 are connected to the battery 7 in the automatic guided vehicle 3,
The power transmission terminals 26 and 27 are connected to the charging DC power supply 13 of the charging device 20. Therefore, the power receiving terminals 23 and 2
4 and the power transmission terminals 26 and 27 contact each other, the charging device 20
It is possible to energize the battery 7 in the automatic guided vehicle 3 from the charging DC power supply 13 therein. Therefore, when the charging device 20 confirms the contact between the power receiving terminals 23 and 24 and the power transmitting terminals 26 and 27, energization of the battery 7 in the automatic guided vehicle 3 from the charging DC power supply 13 is started, and the battery 7 is charged. Done.

As described above, in the charging system of the present embodiment, in addition to the charging DC power source 13 for charging the battery 7 in the automatic guided vehicle 3, the power receiving terminals 23 and 2 are provided.
4 does not require a power source for contacting the power transmission terminals 26 and 27, and has a simple configuration, the power reception terminals 23 and 24 connected to the battery 7 and the power transmission terminal 26 connected to the charging DC power supply 13 The battery 7 can be charged by bringing the battery 7 into contact therewith.

When the charging of the battery 7 is completed, the automatic guided vehicle 3 starts traveling. Then, the power receiving terminals 23 and 24 of the automatic guided vehicle 3 and the power transmitting terminal 2 of the charging device 20.
The contact with 6 and 27 is released, and the repulsive force of the spring 30 (elastic force toward the guideline 1 side) causes the guide rollers 28 and 29 to return to the positions before contact with the trapezoidal plate cam 22. The power transmission terminal board 25 also returns to its original position.

Further, as shown in FIGS. 6 (c) and 6 (d),
Since the front portion 32 of the power receiving terminal 23 and the side portion 35 of the power transmitting terminal 26 that contacts the front portion 32 have a round shape, the power receiving terminal 23 slides on the power transmitting terminal 26 without difficulty. As a result, the power receiving terminal 23 and the power transmitting terminal 26 are in a sufficiently contacted state. Similarly, although not shown, the front portion of the power receiving terminal 24 and the side portion of the power transmitting terminal 27 that comes into contact with the front portion have a rounded shape, and the power receiving terminal 24 can be comfortably used.
Sliding above, the power receiving terminal 24 and the power transmitting terminal 27 can be in good contact with each other. In the above description, the front portions of the power receiving terminals 23 and 24 and the side portions of the power transmitting terminals 26 and 27 that are in contact with the front portions have a rounded shape, but may have a sloped shape. Good. Even in that case, a good contact state can be obtained between the power receiving terminal 23 and the power transmitting terminal 26 and between the power receiving terminal 24 and the power transmitting terminal 27.

By the way, as shown in FIGS. 6 (b) and 6 (d), when the power transmission terminal board 25 comes closest to the main body of the charging device 20, the trapezoidal plate cam 22 comes before contact with the guide rollers 28 and 29. Also, the guide rollers 28 and 29 and the power transmission terminal 26 move to the main body of the charging device 20 by the distance a.
Therefore, in consideration of the moving distance a, when the power transmission terminal board 25 comes closest to the main body of the charging device 20, the power receiving terminal 2
The power receiving terminal 23 and the power transmitting terminal 26 need to be attached to the plate cam / power receiving terminal board 21 and the power transmitting terminal board 25, respectively, so that 3 and the power transmitting terminal 26 are in good contact with each other. At that time, when the power transmission terminal board 25 comes closest to the main body of the charging device 20, it is also considered that the power transmission terminal 26 is pressed against the power reception terminal 23 by the repulsive force of the spring 30 to the side of the automated guided vehicle 3 described above. Therefore, the power receiving terminal 23 and the power transmitting terminal 26 must be attached to the plate cam / power receiving terminal board 21 and the power transmitting terminal board 25, respectively.

Since the relationship between the power receiving terminal 24 and the power transmitting terminal 27 is the same as the relationship between the power receiving terminal 23 and the power transmitting terminal 26, the power transmitting terminal 27 by the repulsive force of the spring 30 is similar to the above case. In consideration of pressing the power transmission terminal board 25 against the power reception terminal 24, when the power transmission terminal board 25 comes closest to the main body of the charging device 20, the power reception terminal 24 and the power transmission terminal 27 may be appropriately contacted so that the power reception terminal 24 and the power transmission terminal 27 appropriately contact each other. The terminal 27 must be attached to each of the plate cam / power receiving terminal board 21 and the power transmitting terminal board 25.

Further, although the guide rollers 28 and 29 are used as an example of the guide portion in the above-mentioned embodiment, the number of guide rollers may be one. The guide portion is not limited to the guide roller.

Further, in the above-described embodiment, the boundary (ridge) between the slope and the top of the trapezoidal plate cam 22 is drawn as a corner in FIGS. 1 and 2, but it should be appropriately rounded. However, the roundness allows the guide rollers 28 and 29 to rotate more smoothly than the case of the corners.

Further, as the material of the trapezoidal plate cam 22 and the guide rolls 28 and 29 of the above-mentioned embodiment, steel material or the like can be used.

Further, the power receiving terminal 23 of the above-mentioned embodiment
And 24 and the material of the power transmission terminals 26 and 27,
Copper-based materials such as beryllium copper, oxygen-free copper, tough pitch copper, and other conductive materials can be used.
However, the power receiving terminals 23 and 24 and the power transmitting terminal 26 are
It slides when it comes into contact. Therefore, it is desirable to use graphite or metal graphite, which has good sliding characteristics and is low in electric resistance during sliding, for both or either one of them, which is used for a brush of a commutator.

Further, in the above-described embodiment, the automatic guided vehicle is used as an example of the guided vehicle. However, even when a guided vehicle other than the guided vehicle is used, the trapezoidal plate cam 22 and the guide rollers described above are used. With a simple mechanism composed of 28 and 29, the power receiving terminal of the carrier and the power transmitting terminal of the charging device can be brought into contact with each other. In this way, the contact method between the power receiving terminal and the power transmitting terminal is simplified, which leads to simplification of the entire charging system for the battery of the guided vehicle typified by the automatic guided vehicle.

[0048]

As is apparent from the above description, according to the present invention, the power receiving terminal of the carrier and the power transmitting terminal of the charging device are brought into contact with each other with a simple structure, and the battery mounted on the carrier is charged. It is possible to provide a charging system that does not require a power source for contacting the power receiving terminal of the carrier vehicle and the power transmitting terminal of the charging device, in addition to the charging unit for performing the charging.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a schematic configuration of a charging system according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a plate cam / power receiving terminal board of an automatic guided vehicle of the charging system according to the embodiment of the present invention.

FIG. 3 is a diagram illustrating a power transmission terminal, a guide roller and the like of the charging device of the charging system according to the embodiment of the present invention.

FIG. 4 is a diagram illustrating traveling of an automatic guided vehicle of the charging system according to the embodiment of the present invention.

FIG. 5 is a diagram for explaining a state before the trapezoidal plate cam of the automatic guided vehicle of the charging system according to the embodiment of the present invention and the guide roller of the charging device are in contact with each other.

FIG. 6 is a diagram for explaining how the power receiving terminal of the automatic guided vehicle of the charging system and the power transmitting terminal of the charging device are in contact with each other according to the embodiment of the present invention.

FIG. 7 is a diagram showing a state in which the power receiving terminal of the automatic guided vehicle and the power transmitting terminal of the charging device of the charging system according to the embodiment of the present invention are connected.

FIG. 8 is a configuration diagram of a conventional charging system.

[Explanation of symbols]

1 guidelines 2 arrows 3 Automated guided vehicles 4 magnetic rod 7 battery 13 DC power supply for charging 14 wheels 16 top 19 arms 20 charger 21 Plate cam / power receiving terminal board 22 Trapezoidal plate cam 23, 24 Power receiving terminal 25 power transmission terminal board 26, 27 power transmission terminals 28, 29 Guide roller (guide section) 30 springs

Claims (4)

[Claims] 1. A charging system comprising a charging device for charging a battery of the automatic guided vehicle by bringing a power transmission terminal into contact with a power receiving terminal of the automatic guided vehicle, wherein the charging device is driven by the automatic guided vehicle. A power transmission terminal is provided that includes a guide portion that is abutted against the automated guided vehicle and is pushed to the side of the traveling path, and a power transmission terminal that is integrally pushed with the pushed guide portion and is pushed to the side of the traveling path. A charging system characterized in that the terminal comes into contact with a power receiving terminal that has been traveling along with the traveling of the automatic guided vehicle. 2. A charging system comprising: a carrier vehicle having a battery; and a charging device having a charging unit for charging the battery of the carrier vehicle, wherein the carrier vehicle is provided on one side surface of the vehicle body. A protrusion,
The charging device is provided on a side surface of the one vehicle body and has a power receiving terminal connected to the battery, and the charging device is arranged in a direction orthogonal to a predetermined traveling path on which the transport vehicle travels from a front surface of the device body to the traveling path side. It has a projecting arm, a guide portion provided at a tip portion of the arm, and a power transmission terminal provided at a tip portion of the arm and connected to the charging portion, and the guide portion has the predetermined portion. The charging device is installed at a position where it can come into contact with the protruding portion of the transporting vehicle that is traveling on the traveling path, and the arm of the charging device is provided on the one side of the vehicle body of the transporting vehicle and the charging device body. When facing the front,
It has a mechanism for moving the guide part to the device main body side by the force from the projection part of the carrier vehicle, and the one vehicle body side surface of the carrier vehicle and the main body front surface of the charging device face each other. The charging system is characterized in that the power transmission terminal and the power reception terminal are provided at positions where the power transmission terminal of the charging device and the power reception terminal of the transport vehicle can contact each other. 3. The charging system according to claim 2, wherein at least a part of the arm of the charging device is made of an elastic body. 4. A front portion of the power receiving terminal of the carrier,
The charging system according to claim 2, wherein one or both of a side portion of the power receiving terminal of the charging device that contacts the front portion thereof has a round shape or a sloped shape.