JPH08205313A - Battery automatic charging equipment - Google Patents

Abstract

PURPOSE: To provide a battery automatic charging equipment, in which an actuator, a charging means and a control means assembled together with a contact are collected compactly and facility is improved and the reliability of a contact section is also enhanced. CONSTITUTION: An actuator unit Y, in which a ground-side contact B is taken to a travelling-side contact electrically connected to a loading type battery, and a charging unit X, in which a control means 3 for controlling the motion of the actuator unit and charging means 1, 2 for flowing a charging current through the battery through the ground-side contact are incorporated and which has a console panel 17, are provided, and these actuator and charging unit are combined and unified in a divisible manner. Various layouts are considered as the layouts of each unit, but it is favorable that the actuator unit is arranged on the lower side and the charging unit on the upper side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery automatic charging device which is convenient for automatically charging a battery mounted on a traveling body such as an unmanned carrier.

[0002]

2. Description of the Related Art An unmanned carrier truck used in factories and the like has a battery as a power source mounted thereon and runs along a fixed guideway by the electric power stored in the battery. Since the electric power of the battery is lost as the carrier vehicle travels, the carrier vehicle that has traveled for a certain period of time temporarily stops at a charging station provided in the middle of the taxiway and is charged.

The charging system as described above requires a detachable electrical connection mechanism between the carrier and the charging station. For this reason, the carriage is provided with traveling-side contacts that travel together with the carriage, and the charging station is provided with ground-side contacts, and a method has been established in which both contacts are brought into contact with each other when the carriage is stopped.

[0004] However, if the carriage is stopped at a predetermined position, the traveling side contact may not be reliable in contact with the ground side contact or a safety problem may easily occur at the time of disconnection.
Therefore, regarding the ground-side contact that is easy to operate, it has been considered to adopt an actuator that moves the contact on the traveling side forward to positively press and make contact with the contact on the traveling side or retract it to ensure separation. Such actuators,
A control means for automating the operation and a charging means (a rectifier, a transformer, etc.) for charging the battery through a contact on the ground have become essential.

[0005]

In order to establish a charging system as described above, it is necessary to combine an actuator, a charging means, and a control means so as to be compatible with the system. Requires a great deal of work, which may result in high cost and is easy to increase in size. In addition, at the contact point between the old carrier and the charger,
Many mechanical scissoring methods using elastic bodies such as springs are found, but in order to adopt this method, it is required to maintain a high stopping accuracy of the carrier, and the contacts tend to wear out due to scissoring. Frequent maintenance was required.

Therefore, the present invention overcomes the above-mentioned problems of the prior art, and an actuator assembled with a contact,
It is an object of the present invention to provide a battery automatic charging device in which the charging means and the control means are compactly integrated to improve the handleability and the contact portion is highly reliable.

[0007]

As shown in the accompanying drawings, the battery automatic charging device provided by the present invention has a ground side contact with a running side contact A electrically connected to the on-board battery. An actuator unit Y for taking in B, and a charging unit X having a control panel for controlling the movement of the actuator unit and a charging means for supplying a charging current to the battery through a contact on the ground side and having an operation panel are provided. The actuator unit and the charging unit are separably combined and integrated. In this way, by combining and integrating the actuator unit that takes in the ground side contact point and the charging unit that has the control means and charging means for the contact point and has the operation panel, it is possible to make the entire system compact. The handling is also improved.

Although various layouts can be considered for each unit, preferably, the actuator unit is arranged on the lower side and the charging unit is arranged on the upper side. Alternatively, the actuator unit and the charging unit are arranged in parallel.

If the surface of the operation panel of the charging unit is made to be orthogonal to the ground side contact insertion / removal side surface of the actuator unit, the operability will be improved.

The actuator unit has a linear movement part formed by a chain 6 which is interlocked with a motor 4 with an electromagnetic brake via a sprocket 5, and is provided with a shaft 8 supported by a slider 9. It is preferable that the backward end side is linked to the linear motion portion of the chain and the forward end side is linked to the ground contact.

In this case, there is a bottom plate which is connected to the linear reciprocating part of the chain and is connected to the backward end of the shaft, and limit switches are provided at the forward limit position and the backward limit position of the bottom plate to control the limit switch. By incorporating it in the circuit, automatic control can be achieved.

Lead cable 15 connected to the ground contact
Is connected to and suspended from the terminal block 16 in the charging unit, and the lead cable has a slack so that the lead cable can swing, so that the operation of the ground contact in the actuator unit can be allowed by the slack of the cable.

In a preferred mode of each contact, a wide contact surface A2 is formed on the traveling contact by the surface contact material A1.
A conductive rod B2 having a button-type contact material B1 fixed thereto which can be pressed to come into contact with an arbitrary point of the wide contact surface on the ground side contact, and a boom B2 which supports the conductive rod so as to be able to hang down via a spherical joint B3. And a bottomed guide cylinder B5 that penetrates the boom movably in the axial direction, and a compression spring B6 mounted in the bottomed guide cylinder and attached to the boom. The cylinder is linked to the actuator unit via the drive base 10.

A contact confirmation limit switch is provided for the ground contact, and the limit switch is preferably arranged at a position where the retracting end of the boom can be detected when the contact between the traveling contact and the ground contact is conducted. Alternatively,
A contact rod 19 that can push the insulating part of the traveling carriage side is provided so as to be able to move forward and backward in parallel with the contact on the ground side, and a contact confirmation is made at a position where the backward end when pushing the contact rod can be detected. It is preferable that the limit switch 21 is arranged.

[0015]

1 to 6 show a preferred embodiment of an automatic battery charging apparatus of the present invention. FIGS. 1 and 2 show only the ground side, and FIG. 3 shows an actuator unit on the ground side. FIG. 4 shows the charging mechanism in detail, FIG. 4 shows the charging procedure, FIG. 5 shows the state of contact between contacts, and FIG.
Figure 3 shows the concrete structure of the ground contacts.

As shown in FIG. 4, the automatic battery charger of the present embodiment basically has a trolley-side contact A, a ground-side contact B, and a ground-side contact, which are incorporated in a carrier Z carrying the battery 11. It is provided with an actuator for performing the reciprocating motion (forward / backward movement), a control means for the actuator, and a charging means.

As shown in FIG. 4, when the carriage Z is stopped at the charging station and is going to be charged, first,
As shown in (a), the carriage B is stopped so that the carriage contact point A of the carriage Z is in a position directly facing the ground contact point B. Then, as shown in (b), the ground contact point B is stopped.
Is moved forward by driving the actuator unit Y, and the ground side contact B is brought into pressure contact with the trolley side contact A, whereby electrical contact conduction is achieved. When electric power is sent from the charging circuit and the battery 11 is charged, the trolley-side and ground-side contacts are disconnected by performing the above operation in reverse, so that the transport trolley Z can travel.

In this embodiment, the structure of the ground station is greatly improved. That is, FIG.
As shown in, a combination of an actuator unit Y that takes in the ground side contact B and a charging unit X is used.

The charging unit X contains a transformer 1 and a rectifier 2 as charging means, a control circuit 3 as control means, and the like in a housing, and a terminal block 16 which is a connection terminal to each of these parts. Further, an operation panel 17 equipped with measuring instruments is installed on an obliquely upper slope of the housing. The control circuit 3 is for controlling the charging circuit in the charging means and the actuator unit Y. The actuator unit Y has a case whose size around the side surface is the same as the case of the charging unit X, and a driving mechanism is built in the case, and the case has a structure as shown in FIGS. 2 and 3. In addition, it has an opening for allowing the ground contact B to appear and disappear.

Each of the charging unit X and the actuator unit Y can be treated as one box, and a series of station boxes can be constructed only by assembling the actuator unit Y on the lower side and the charging unit X on the upper side. Generally, the carriage Z has a low vehicle height. Therefore, as described above, the actuator unit Y
Should be placed at a low position. In order to adjust the connection with the carriage Z (see FIG. 4), it is preferable that the actuator unit Y is further raised with a structural member such as a channel material. In that sense also, it is desirable to arrange the actuator unit Y at the bottom.

As shown in FIGS. 1 and 2, when the surface of the operation panel 17 in the charging unit is made to be orthogonal to the side surface of the ground contact B of the actuator unit, the movement of the ground contact B is considered. The operator can be sufficiently separated from the part, and the operability is improved with safe work. If the casings of the charging unit X and the actuator unit Y are made square when viewed from directly above, even if the surface of the operation panel 17 is directed to any of the three side surfaces other than the above-mentioned ground side contact B insertion / removal surface. Assembling between units is possible, increasing the degree of freedom in selecting the operating position.

When the charging unit X and the actuator unit Y are combined and integrated, it is preferable that the housings be disassembled by connecting the housings with bolts or the like in consideration of maintenance. In consideration of ease of assembly, it is preferable that the eyebolt 18 is screwed onto the upper part of the housing of the charging unit X so that the charging unit X can be lifted by a hoist or a crane. In that case, it is preferable to provide an internal thread on the upper part of the housing, remove the eyebolt 18 normally, and screw the eyebolt to the internal thread only at the time of work.

As specifically shown in FIG. 3, the drive mechanism in the actuator unit Y includes an electromagnetic brake motor 4, a sprocket 5 provided on the drive shaft of the electromagnetic brake motor, and a sprocket facing the sprocket. 5'and a chain 6 wound between these sprockets 5, 5'constitute a drive unit.
The straight part of is set as the linear motion part. Further, the shaft 8 is supported by a slider 9 so as to be axially movable, and the axial movement of this shaft is parallel to the linear movement portion of the chain 6. A flat plate-shaped bottom plate 7 is attached to the linearly moving portion of the chain 6 in an upright state, and a shaft 8 for the bottom plate 7
Of the chain 8 is fixed, so that the shaft 8 is linked to the linear movement part of the chain 6.

The motor 4 with an electromagnetic brake is capable of freely rotating in the normal and reverse directions, so that the linear motion portion of the chain 6 is reciprocated and the shaft 8 is moved forward and backward.
Allow backwards. In order to set the reciprocating range of stroke of the shaft 8, that is, the stroke, that is, the stroke, a limit switch 12 is preferably arranged at the forward limit position of the bottom plate 7, and a limit switch 13 is preferably arranged at the backward limit position of the bottom plate 7. By incorporating these limit switches 12 and 13 into the control circuit 3, the rotation of the motor 4 with an electromagnetic brake can be automatically operated under the control of the control circuit 3.

Two ground contacts B, B are used, one for + and the other for-. These ground contacts can be installed opposite to the trolley contacts A under the same driving conditions. Therefore, the bottom plate 7 is widened in the lateral direction, one shaft 8 is fixed at each end in the width direction, and the two wide shafts 8 and 8 are thereby provided at the forward ends with a wide-sized drive base similar to the bottom plate. 10 is connected and 2 is attached to this drive base 10.
By connecting the individual ground contacts B, B, the ground contacts B, B are devised so as not to be pushed. The trolley-side contact A for the ground-side contacts B, B is +,-
Of course, each has one contact point.

Since the two ground contacts B, B are supplied with power from the charging circuit including the transformer 1 and the rectifier 2, the leads wired to their terminals and the terminal block 16 in the charging unit A. It has a cable 15. As shown in FIGS. 1 and 4, the lead cable 15 includes a transformer 1 in the charging unit X from the actuator unit Y.
By passing through the cable passage space between the rectifier 2 and the rectifier 2 and connecting and suspending the terminal block 16 above the charging unit in a loosened state, the ground side contact B is moved forward and backward. With the movement of the lead wire 15, the amplitude can be made possible. Therefore, while the lead cable 15 is connected, the movement of the ground side contact B is made possible and the lead cable 15 is not burdened.

5 and 6 concretely show the trolley-side contact A and the ground-side contact B. Then, the trolley side contact A is
A wide contact surface A that allows the deviation of the contact point by allowing the planar contact material A1 to be mounted on an insulating substrate.
2 is formed. The contacted surface A2 is shown in FIG.
As shown in (FIG. 6), by mounting the carrier in the recessed space of the carriage Z, safety measures are taken to prevent a person from intentionally touching the contacts during charging. Is less likely to get dirty.

On the other hand, the ground side contact B is a conductive rod B2 having a button type contact material B1 fixed thereon which can be pressed against any point of the wide contact surface A2 to make contact, and this conductive rod is connected via a spherical joint B3. A boom B2 supported so as to be able to descend from the neck, a bottomed guide cylinder B5 that penetrates the boom movably in the axial direction, and a compression spring B6 mounted in the bottomed guide cylinder and attached to the boom are provided. The bottomed guide cylinder B5 is attached to the drive base 10 described above.
It is possible to move the boom B4 in parallel with the shaft 8 (see FIG. 3) by driving the actuator unit Y so that the boom B4 can move forward and backward by passing it through at a right angle and bolting it. In addition, B7 is a terminal fixed to the rear end of the boom, and by connecting the conductive rod B2 with a flexible conductor,
The lead cable 15 (see FIGS. 1 and 4) can be connected.

The trolley-side contact A and the ground-side contact B as described above
With the configuration described above, a series of contact operations and their maintenance or opening can be performed reliably and with good reproducibility by a very simple drive operation without increasing the stop accuracy of the transport carriage (even if it is rough to some extent). Of.

In order to automatically detect whether or not the button-type contact material B1 of the ground side contact, which is advanced by the drive of the actuator unit Y, comes into contact with the contact surface A2 of the planar contact material of the carriage side contact, As shown in FIG. 5, a contact confirmation limit switch 14 may be provided. The contact confirmation limit switch 14 may be fixedly arranged on the lower protruding portion 10a of the drive base 10 at a position where the rear end B4a of the boom B4 when retracted can be detected. In that case, two are arranged so that the positive and negative polarities of the ground contact A can be detected.

The operation (operation) of the battery automatic charging device of the present embodiment having the above-described structure will be described. First, the carrier truck that has consumed the battery is indicated by Z in FIG. 4A for charging the battery. As shown, when the charging station is stopped at a fixed position, the host computer controlling the carriage Z sends a charging request signal to the control circuit 3 with priority. Upon receiving the signal, the control circuit 3 issues a signal to rotate the motor 4 with an electromagnetic brake in the actuator unit in the forward direction, so that the chain 6
The shaft 8 is advanced in accordance with the linear movement of the contact point A, the ground side contact A is moved forward by the pushing force of the drive base 10, and the button type contact material B1 faces the contact surface A2 of the trolley side contact. When a point is pressed and the bottom plate 7 at the rear end of the shaft hits the limit switch 12 for detecting the forward limit position, a signal is issued to the control circuit 3 so as to stop the forward movement, and the rotation of the electromagnetic brake motor 4 is stopped. .

At this time, the bottomed guide cylinder B5 is compressed by the compression spring B6.
Is pushed out while compressing, and the drive base 1
Since 0 moves relatively forward with respect to the boom B4,
The contact position confirmation limit switch 14 interlocked with the drive base is struck at the rear end portion B4a of the boom to issue a contact confirmation signal to the control circuit 3. Then, when the contact confirmation signals for the positive and negative electrodes are obtained, the control circuit issues a charging start command to the charging means (the charger including the transformer 1, the rectifier 2, etc.). Then, electric power is sent through the ground side contact A and the trolley side contact B to start charging the battery. Such a contact confirmation method can be configured in a vial, +,-
It is possible to obtain excellent reliability at the contacts by checking each pole separately and not energizing if there is a contact failure at one of the contacts.

When the charging for a certain period of time is completed as described above, a charge completion signal is sent from the control circuit 3 to the charger, and the control circuit 3 drives the actuator unit Y so that the ground contact B is retracted. And sends a signal to the host computer that controls and controls the carriage Z to end the charging operation.
The operation for a series of charging is ended, and the carriage Z is shifted to the traveling operation.

[Other Embodiments and Modifications] When the battery mounted on the carrier truck becomes large and a large charging current is required, the charging circuit becomes large and the weight also becomes large. In such a case, it is difficult to place the charging unit X having a built-in charging circuit on the actuator unit Y in terms of weight and strength. Therefore, as shown in FIG. 7, the actuator unit Y is arranged in parallel with the charging unit X. It is desirable to place them. In this case, the actuator units Y are preferably arranged side by side in parallel with the side surfaces of the charging unit X excluding the ground contact B insertion / removal side surface and integrated.

The driving means in the actuator unit is not limited to the above-mentioned motor and chain, and for example, a method of advancing / retracting the ground side contact by air pressure using an air cylinder can be considered.

As a means for confirming whether the ground contact point B has surely contacted the carrier contact point A, it is possible to use a contact rod 19 as shown in FIG. The contact rod 19 penetrates the drive base 10 at a right angle and is biased forward through a compression spring 20. At the front end of the contact rod 19, an insulating portion 22 (for example, an insulating base of the truck side contact A) is provided on the transporting truck side. (See FIG. 6)). The contact confirmation limit switch 21 fixed to the lower protruding portion 10a of the drive base is provided to detect the rear end portion of the contact rod 19 when retracted. Therefore, when the trolley-side and ground-side contacts A and B contact each other, the contact rod 19
Is pushed back by the insulating portion 22 on the side of the carriage, and hits the limit switch 21 at the rear end of the contact rod which has retreated. When the ground contact B is retracted, the contact rod 19 is pushed forward by the elastic force of the compression spring 20 compressed by the push-back of the contact rod, and is reset to a predetermined value. Since the same parts as those in FIGS. 1 to 6 are denoted by the same reference numerals, the description regarding FIGS. 1 to 6 should also be referred to.

Furthermore, in the above-described embodiment, signals are exchanged between the automatic charging device and the host computer by the priority method, but the present invention is not limited to this. For example, an optical sensor may be used to convey the automatic charging device and the carrier truck. A method of mutually transmitting signals and a method of wirelessly exchanging signals are also conceivable.

[0038]

According to the battery automatic charging device of the present invention as described above, the actuator unit for taking in the ground contact can be combined with the charging unit having the charging means and the control means built in and the operation panel as a unit. As a result, the whole system will be greatly compacted and its handling will be very good. Also, by contacting the carrier and both ground-side contacts at face-to-face,
It is possible to have a margin in the stopping accuracy of the carrier vehicle and to simplify the maintenance of the contact portion.

[Brief description of drawings]

FIG. 1 is an external side view of an automatic battery charger (ground side only) and an external front view of an automatic battery charger according to an embodiment of the present invention.

FIG. 2 is a bird's-eye view showing an automatic battery charger (ground side only) in a state before operation according to an embodiment of the present invention; and (b) a battery automatic charger (ground side only). FIG. 3 is an overhead perspective view showing a state after the operation.

3A and 3B specifically show a mechanism of an actuator unit in the embodiment of the invention, FIG. 3A being a rear view and FIG. 3B being a side view.

FIG. 4 is a diagram illustrating a charging procedure of the battery automatic charging device according to the embodiment of the present invention, in which FIG.
(B) is an explanatory view when the battery is ready to be charged.

5A and 5B show an arrangement of a trolley-side contact and a ground-side contact in an embodiment of the present invention, (A) is an explanatory diagram before contact, and (B) is an explanatory diagram of a contact state.

FIG. 6 is a structural explanatory view specifically showing a trolley-side contact and a ground-side contact in the embodiment of the present invention.

FIG. 7 is an overhead perspective view showing another embodiment of the present invention in which the layout of the battery automatic charging device (only on the ground side) is changed from that of FIG.

FIG. 8 is an explanatory view showing another embodiment of the present invention in which the contact confirmation mechanism of the battery automatic charging device is changed from that of FIG.

[Explanation of Codes] A Truck Side Contact A1 Planar Contact Material A2 Contacted Surface B Ground Side Contact B1 Button Type Contact Material B2 Conductive Rod B3 Spherical Joint B4 Boom B5 Bottom Guide Tube B6 Compression Spring B7 Terminal X Charging Unit Y Actuator Unit Z Transport trolley 1 Transformer 2 Rectifier 3 Control circuit 4 Motor with electromagnetic brake 5 Sprocket 6 Chain 7 Bottom plate 8 Shaft 9 Slider 10 Drive base 11 Battery 12 Limit switch (For detection of forward end) 13 Limit switch (For detection of backward end) 14 Limit switch (for contact confirmation) 15 Lead cable 16 Terminal block 17 Operation panel 18 Eye bolt 19 Contact rod 20 Spring 21 Limit switch (for contact confirmation) 22 Insulation part of traveling side contact

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[Procedure amendment]

[Submission date] February 2, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 8

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

In a preferred mode of each contact, a wide contact surface A2 is formed on the traveling contact by the surface contact material A1.
The ground side contact has a conductive rod B2 fixed with a button type contact material B1 which can be pressed to come into contact with an arbitrary point of the wide contact surface, and a boom B2 which supports the conductive rod so as to swing via a spherical joint B3. And a bottomed guide cylinder B5 that penetrates the boom movably in the axial direction, and a compression spring B6 mounted in the bottomed guide cylinder and attached to the boom. The cylinder is linked to the actuator unit via the drive base 10.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction content]

On the other hand, the ground side contact B is a conductive rod B2 having a button type contact material B1 fixed thereon which can be pressed against any point of the wide contact surface A2 to make contact, and this conductive rod is connected via a spherical joint B3. Yes and swivelably supported by the boom B2, a bottomed guide tube B5 to movably penetrate the boom in the axial direction, a compression spring B6 was engaged to boom Kakaru have been loaded in the bottom guide cylinder The bottomed guide cylinder B5 is attached to the drive base 10 described above.
It is possible to move the boom B4 in parallel with the shaft 8 (see FIG. 3) by driving the actuator unit Y so that the boom B4 can move forward and backward by passing it through at a right angle and bolting it. In addition, B7 is a terminal fixed to the rear end of the boom, and by connecting the conductive rod B2 with a flexible conductor,
The lead cable 15 (see FIGS. 1 and 4) can be connected.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction content]

The operation (operation) of the battery automatic charging device of the present embodiment having the above-described structure will be described. First, the carrier truck that has consumed the battery is indicated by Z in FIG. 4A for charging the battery. As shown, when the charging station is stopped at a fixed position, a charging request signal is sent to the control circuit 3 by wire from the host computer controlling the transport carriage Z. Upon receiving the signal, the control circuit 3 issues a signal to rotate the motor 4 with an electromagnetic brake in the actuator unit in the forward direction, so that the chain 6
The shaft 8 is advanced in accordance with the linear movement of the contact point A, the ground side contact A is moved forward by the pushing force of the drive base 10, and the button type contact material B1 faces the contact surface A2 of the trolley side contact. When a point is pressed and the bottom plate 7 at the rear end of the shaft hits the limit switch 12 for detecting the forward limit position, a signal is issued to the control circuit 3 so as to stop the forward movement, and the rotation of the electromagnetic brake motor 4 is stopped. .

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0032

[Correction method] Change

[Correction content]

At this time, the bottomed guide cylinder B5 is compressed by the compression spring B6.
Is pushed out while compressing, and the drive base 1
Since 0 moves relatively forward with respect to the boom B4,
The contact position confirmation limit switch 14 interlocked with the drive base is struck at the rear end portion B4a of the boom to issue a contact confirmation signal to the control circuit 3. Then, when the contact confirmation signals for the positive and negative electrodes are obtained, the control circuit issues a charging start command to the charging means (the charger including the transformer 1, the rectifier 2, etc.). Then, electric power is sent through the ground side contact A and the trolley side contact B to start charging the battery. Such contact confirmation method may be easily configured, +, -
It is possible to obtain excellent reliability at the contacts by checking each pole separately and not energizing if there is a contact failure at one of the contacts.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0033

[Correction method] Change

[Correction content]

When charging for a certain period of time is completed as described above, the control circuit 3 sends a charging completion signal to the charger,
The control circuit 3 drives and controls the actuator unit Y so as to retract the ground contact B, sends a signal indicating the end of charging work to the host computer that controls the transport carriage Z, and terminates a series of charging operations to transport. That is, the trolley Z is transferred to the traveling operation.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0036

[Correction method] Change

[Correction content]

As a means for confirming whether or not the ground side contact point B has surely contacted the carrier side contact point A, it is conceivable to use a contact rod 19 as shown in FIG. The contact rod 19 penetrates the drive base 10 at a right angle and is biased forward through a compression spring 20. At the front end of the contact rod 19, an insulating portion 22 (for example, an insulating base of the truck side contact A) is provided on the transporting truck side. (See FIG. 6)). The contact confirmation limit switch 21 fixed to the lower protruding portion 10a of the drive base is provided to detect the rear end portion of the contact rod 19 when retracted. Therefore, when the trolley-side and ground-side contacts A and B contact each other, the contact rod 19
Is pushed back by the insulating portion 22 on the side of the carriage, and hits the limit switch 21 at the rear end of the contact rod which has retreated. When the contact B on the ground side moves backward, the contact rod 19 is pushed forward by the elastic force of the compression spring 20 compressed by the pushing back of the contact rod, and a predetermined reset is performed .
Since the same parts as those in FIGS. 1 to 6 are denoted by the same reference numerals, the description regarding FIGS. 1 to 6 should also be referred to.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Name of item to be corrected] 0037

[Correction method] Change

[Correction content]

Furthermore, in the above-described embodiment, signals are exchanged between the automatic charging device and the host computer by a wire system, but the present invention is not limited to this. For example, an optical sensor may be used to carry out the automatic charging device and the carrier truck. A method of mutually transmitting signals and a method of wirelessly exchanging signals are also conceivable.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction content]

[0038]

According to the battery automatic charging device of the present invention as described above, the actuator unit for taking in the ground contact can be combined with the charging unit having the charging means and the control means built in and the operation panel as a unit. As a result, the whole system will be greatly compacted and its handling will be very good. Also, by contacting the carrier and both ground-side contacts at face-to-face,
Can take tolerance to stopping accuracy of the conveying carriage, we are possible to achieve simplification of the maintenance of the contact portion.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Tanoi 5-1-1 Hidakacho, Hitachi City, Ibaraki Prefecture Hitachi Cable Co., Ltd. Hidaka Plant (72) Inventor Masami Murayama 4 Hidakacho, Hitachi City, Ibaraki Prefecture Chome 12-1 Hitachi Cable Equipment Co., Ltd.

Claims (10)

[Claims] 1. An actuator unit Y which takes in a ground side contact B with respect to a running side contact A electrically connected to an on-board battery, a control means for controlling the movement of the actuator unit, and a ground side contact. An automatic battery charging device comprising: a charging unit X having a charging unit for supplying a charging current to a battery and having an operation panel, and integrating the actuator unit and the charging unit in a separable manner. 2. The battery automatic charging device according to claim 1, wherein the actuator unit is arranged on the lower side and the charging unit is arranged on the upper side. 3. The automatic battery charging device according to claim 1, wherein the actuator unit and the charging unit are arranged in parallel. 4. The surface of the operation panel in the charging unit is made to be orthogonal to the ground-side contact insertion / removal side surface of the actuator unit.
The automatic battery charging device described in the item. 5. The actuator unit is provided with a shaft 8 supported by a slider 9 and having a linear movement portion formed by a chain 6 which is interlocked with a motor 4 having an electromagnetic brake via a sprocket 5. 2. The automatic battery charging device according to claim 1, wherein the backward end side of the shaft is linked to the linear motion portion of the chain, and the forward end side is linked to the ground contact. 6. A bottom plate connected to a linear reciprocating portion of a chain and connected to a retracted end of a shaft, wherein limit switches are provided at forward and backward limit positions of the bottom plate. Automatic battery charger. 7. A lead cable 15 connected to a ground contact.
The battery automatic charging device according to claim 1, wherein the battery is connected to and suspended from the terminal block 16 in the charging unit, and the lead cable has slack so that the lead cable can swing. 8. A button-type contact material B1 which has a wide contact surface A2 formed by a surface contact material A1 on the traveling side contact and which can be pressed and contacted with an arbitrary point of the wide contact surface on the ground side contact. A conductive rod B2 fixed thereto, a boom B2 supporting the conductive rod via a spherical joint B3 so that the neck can be lowered, a bottomed guide cylinder B5 penetrating the boom movably in the axial direction, and a bottomed guide thereof. The automatic battery charger according to claim 1, further comprising a compression spring B6 loaded in the cylinder and engaged with the boom, wherein the bottomed guide cylinder is linked to the actuator unit via the drive base 10. . 9. A contact confirmation limit switch is provided for the ground contact, and the limit switch is arranged at a position where the retracted end of the boom can be detected when the contact between the traveling contact and the ground contact is conducted. The automatic battery charging device according to claim 8. 10. A contact rod 19 capable of pushing an insulating portion of a traveling carriage side is provided so as to be able to move forward and backward in parallel with a contact on the ground side, and a backward end of pushing the contact rod can be detected. 9. The battery automatic charging device according to claim 1, wherein a limit switch for contact confirmation 21 is arranged at the position.