JPH0845559A - Charging device - Google Patents

Abstract

PURPOSE:To provided a charging device which enables the missing of any charged instrument to be detected, and thereby also enables each charged instrument to be controlled by measuring and monitoring the green charging time of each charged instrument. CONSTITUTION:Following means are added to the charging device equipped with a plurality of charging connectors 3 which are engaged so as to be connected to power receiving connectors 13 provided for the tip end sections of the power receiving cables 12 of a plurality of charged instruments 11, and with a charger 1a which is connected to these power receiving connectors 13 to charge the respective charged instruments 11. Namely, the following means are a memory means 1c storing the green charging limit time of a plurality of the charged instruments 11 respectively, and a charging condition detecting means 6 which detects whether or not each charged instrument 11 is in a charged condition in response to the engagement connecting condition between each charging connector 3 and each power receiving connector 13. Based on the detected signal of the charging condition detecting means 6, the green charging time of each charged instrument 11 is measured. And a report and control means 1b and a reporting means 5 are provided, which execute reporting and controlling if the measured time exceeds the green charging limit time set in the memory means 1c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging device for charging a meter to be charged.

[0002]

2. Description of the Related Art FIG. 12 is an external view showing a conventional charging device. In FIG. 12, reference numeral 1 denotes a main body of the charging device, a plurality of charging connectors 3 are provided on the surface of the charging device 1, and a name tag of a person who uses the charging connector is provided under each charging connector 3. 4 is pasted.

FIG. 13 is a block diagram showing the internal structure of the charging device 1. Inside the charging device 1, a charger 1a for charging the undervoltage of the meter 11 to be charged connected to the charging connector 3 is provided. ing. In FIG. 13, reference numeral 12 denotes a power receiving connector 13 fitted and connected to the charging connector 3 at the tip.
11a is a power source of the meter 11 to be charged, and 11b is a measuring unit for measuring the power source voltage of the power source 11a.

When the power source 11a of the meter to be charged 11 has an undervoltage, as shown in FIG. 13, the power receiving connector 13 provided at the end of the power receiving cable 12 causes the meter to be charged 11 to charge the charging connector 3 of the charging device 1. It is configured to be charged by the charger 1a in the charging device 1 by being fitted and connected to.

[0005]

However, the above-described conventional charging device has only the function of charging, and even if the meter 11 to be charged is lost, the loss becomes apparent unless the user declares it. However, the loss of the charged instrument 11 is a loss to the company, and sometimes the traded instrument 11 that is a trade secret also causes a serious loss. In addition, since it is unavoidable to lose the charged instrument 11, if the loss is noticed earlier, the search for the lost instrument will be quicker, and the possibility of finding it will be higher, so early detection of the lost instrument is automatically performed. Is desired.

The present invention has been made in order to solve the above-mentioned problems of the conventional example, and provides a charging device capable of detecting the loss of the charged instrument and also managing the charged instrument. The purpose is.

[0007]

The charging device of the present invention comprises:
A plurality of charging connectors that are fitted and connected to power receiving connectors respectively provided at the tip ends of the power receiving cables of the plurality of charged instruments, and a charger that is connected to these power receiving connectors and charges each of the charged instruments In the charging device, the storage means storing the uncharged limit time of each of the plurality of meters to be charged, and each meter to be charged into a charging state according to the fitting connection state of each charging connector and each power receiving connector. There is a charge state detection device that detects whether each is in the uncharged state or not, and the uncharged time of each instrument to be charged is measured based on the detection signal of each of the charge state detection devices, and the measured time is stored in the memory. It is characterized by comprising a control means for performing notification control when the set uncharged limit time is exceeded, and a notification means for performing notification control by this control means. That.

Further, the charging state detecting device detects a short circuit between the connection terminals of the connector when the charging connector and the power receiving connector are mated and connected, and sends a short circuit signal indicating the charging state to the control means. It is characterized by being configured with a signal detection device.

Further, as the charging state detecting device, a resistor provided in a path of a charging current flowing from the charger toward the power receiving connector when the charging connector and the power receiving connector are mated and connected, and a predetermined value for the resistor. And a voltage drop detection circuit that sends out a charge detection signal indicating a charge state to the control means when a voltage drop of a value or more occurs.

Further, the charging state detecting device is provided in the charging connector, and when the charging connector and the power receiving connector are fitted and connected, a surface thereof contacts the power receiving connector to generate a detection signal. And a contact detection switch for sending a charge detection signal indicating a charge state to the control means.

Further, the present invention is characterized by further comprising a time setting device for variably setting the uncharged limit time of the meter to be charged stored in the storage means.

Further, it is provided with display means for displaying the instrument number of the instrument to be charged, and is stored in the storage section in the instrument to be charged when the charging connector and the power receiving connector are fitted and connected by the control means. When the meter number is read and the mating connection state between the charging connector and the power receiving connector is released, the uncharged time for each meter number of the meter to be charged is measured, and the measured time exceeds the uncharged limit time. The charging shortage state at this time is specified and displayed on the display means.

[0013]

In the charging device according to the present invention, a plurality of charging connectors which are respectively fitted and connected to the power receiving connectors provided at the tips of the power receiving cables of the plurality of instruments to be charged, and the charging connectors which are connected to these power receiving connectors are described above. In a charging device including a charger for charging each charged instrument, storage means for respectively storing uncharged limit times of the plurality of charged instruments, and mating connection between each charging connector and each power receiving connector A charging state detection device that detects whether each charged instrument is in a charged state or an uncharged state according to the state, and the uncharged time of each charged instrument based on the detection signal of each charging state detection device Respectively, and control means for performing notification control when the measured time exceeds the uncharged limit time set in the storage means, and notification control by this control means. By and a that informing means,
The charged instrument can be managed by automatically detecting the lost instrument, and the lost instrument can be searched early.

Further, as the state-of-charge detecting device, a short-circuit for detecting a short-circuit between the connection terminals of the connector when the charging connector and the power-receiving connector are matingly connected and sending a short-circuit signal indicating the state of charge to the control means. By configuring with a signal detection device, the uncharged limit time for each instrument to be charged is set in the storage means, and each charging connector of the charging device and the mating connection of the power receiving connector at the tip of the power receiving cable of each instrument to be charged are connected. When the condition is released, sending of the short circuit signal is stopped and it is detected that each charged instrument is in an uncharged state,
The control means measures the uncharged time, and when the measured time exceeds the uncharged limit time preset in the storage means, notification control is performed, so that the lost instrument is automatically detected. It is possible to manage the charged instrument relatively easily.

Further, as the charging state detecting device, a resistor provided in a path of a charging current flowing from the charger toward the power receiving connector when the charging connector and the power receiving connector are mated and connected, and a predetermined value for the resistor. With a voltage drop detection circuit that sends a charge detection signal indicating the charging state to the control means when a voltage drop of a value or more occurs, a charging current flows from the charger to the charged instrument through the power receiving cable. At this time, the resistance provided in the connection line between the charger and the charging connector and the voltage drop detection circuit that outputs the charging detection signal to the control unit when a voltage drop of a predetermined value or more occurs in the resistance, You can use a normal connector as the power receiving connector, with a simple configuration,
It is possible to detect whether each meter to be charged is in an uncharged state or a charged state.

Further, the charging state detecting device is provided in the charging connector, and when the charging connector and the power receiving connector are fitted and connected, a surface thereof contacts the power receiving connector to generate a detection signal. The contact detection switch that sends out to the control means as a charge detection signal indicating the charging state allows the contact detection switch provided in the charging connector to generate a detection signal at the time of mating connection with the power receiving connector. Thus, it is possible to detect whether each meter to be charged is in an uncharged state or a charged state with a simple configuration.

Further, by providing the time setting device for variably setting the uncharged limit time of the meter to be charged stored in the storage means, the charging device can set the uncharged limit time corresponding to the management of the work environment and lost time. Also, it is possible to variably set each charging connector.

Further, it is equipped with display means for displaying the instrument number of the instrument to be charged, and is stored in the storage section in the instrument to be charged when the charging connector and the power receiving connector are fitted and connected by the control means. When the meter number is read and the mating connection state between the charging connector and the power receiving connector is released, the uncharged time for each meter number of the meter to be charged is measured, and the measured time exceeds the uncharged limit time. When the insufficient charging state at this time is specified and displayed on the display means, the uncharged state for each instrument number of the instrument to be charged can be displayed.

[0019]

【Example】

Example 1. The present invention will be described below with reference to the illustrated embodiments. 1A and 1B are configuration diagrams showing a charging device according to a first embodiment. FIG. 1A is an external view and FIG. 1B is an internal configuration diagram. In FIG. 1 (a), 1 is a main body of the charging device, 2 is an alarm lamp which emits light when warning that a meter to be charged is lost, and 3
Is a charging connector, 4 is a name tag of the user of the meter to be charged, and 5 is an alarm buzzer which is issued when warning the loss of the meter to be charged, like the alarm lamp 2.

Further, in FIG. 1B, 11 is a power source 1.
1a and measuring unit 1 for measuring the power supply voltage of this power supply 11a
1b is a charged instrument, 12 is the charged instrument 11
In the above charging device 1, the charging time of the charger 1a for charging the meter to be charged 11 and the time when the meter to be charged 11 is detached from each charging connector 3 is measured. And a CPU 1b that controls to notify when a preset uncharged limit time is exceeded,
A memory 1c in which the uncharged limit time of each meter to be charged 11 is stored in advance for each charging connector 3, and each meter to be charged 11 provided in each charging connector 3 is in a charged state or an uncharged state. A plurality of state-of-charge detecting devices 6 for detecting whether or not each of them is present and outputting the detection signals to the corresponding input terminals of the CPU 1b. In addition,
The maximum uncharged time of each of the above-mentioned meter 11 to be charged is preferably set to the maximum time taken out to the site on the day, but it is set to a time that considers the time to go on a business trip, go straight to the site, or return directly from the site To do.

FIG. 2 is an enlarged view showing in detail the connecting portion between the charging connector 3 and the power receiving connector 13 in the charging device 1 and the charging state detecting device 6. As shown in FIG. 2, at the tip of the power receiving cable 12 of the instrument to be charged 11, the charging connector 3 is fitted and the connection terminal 3 a of the charging connector 3 is fitted.
The power receiving connector 13 having the connecting terminals 13a to 13d respectively connected to the power receiving connector 13 to 3d is provided, and the connecting terminals 13a and 13b of the power receiving connector 13 are short-circuited in advance internally, and the charging connector 3 and the power receiving connector are connected. At the time of fitting with 13, the connection terminals 3a, 3b are connected.
The short-circuit signal detecting device 6a as the charging state detecting device 6 connected to the CPU 1a sends a short-circuit signal to the CPU 1a. Further, since the connection terminals 3c and 3d are connected to the connection terminals 13c and 13d, respectively, the power source 11a of the to-be-charged instrument 11 is connected to the power receiving cable 12
It is configured to be charged by the charger 1a of the charging device 1 via the.

Next, the operation of the charging device having the structure shown in FIGS. 1 and 2 will be described. In a standby state in which the meter 11 to be charged is not used, the power receiving connector 13 provided at the tip of the power receiving cable 12 of each meter 11 to be charged is fitted to the charging connector 3 corresponding to the name tag 4 of the charging device 1. Manage with each connection terminal connected. In this state, the power source 11a of the to-be-charged instrument 11 is charged by the shortage by the charger 1a of the charging device 1 via the power receiving cable 12. At this time, the connection terminal 3 of the charging connector 3
a and 3b are connection terminals 13a and 13b of the power receiving connector 13.
Is connected to the short circuit signal detecting device 6 in the charging device 1.
a sends a short circuit signal to the CPU 1b, and the CPU 1b
Is a short-circuit signal detection device 6a corresponding to the meter 11 to be charged.
It is possible to detect that the meter to be charged 11 in question is in a standby state, that is, in a charging state, by the short circuit signal from.

After charging, when carrying out the device 11 to be charged,
By removing the power receiving connector 13 from the charging connector 3 of the charging device 1, charging can be stopped and taken out. At this time, the uncharged limit time for each charged device 11 is preset in the memory 1c of the charging device 1,
When the power receiving connector 13 is removed from the charging connector 3 of the charging device 1, the connection terminal 3a of the charging connector 3 is connected.
And 3b are disconnected from the connection terminals 13a and 13b of the power receiving connector 13, the short-circuit signal detection device 6a in the charging device 1 stops sending the short-circuit signal to the CPU 1b, which causes the CPU 1b to be charged. Confirm that the meter 11 has been removed from each charging connector 3 and is in an uncharged state,
The memory 1c stores the meter number of the corresponding meter to be charged 11 and measures the uncharged time, and when the measured time exceeds the uncharged limit time preset in the memory 1c, insufficient charging occurs. However, the alarm lamp 2 for each charging connector 3 of the corresponding meter to be charged 11 is blinked and the alarm buzzer 5 is sounded to control the notification.

Therefore, according to the first embodiment, the memory 1
The uncharged limit time for each charged instrument 11 is set in c, and the fitting connection state of each charging connector 3 of the charging device 1 and the power receiving connector 13 at the tip of the power receiving cable 12 of each charged instrument 11 is released. In the charging device 1, a short circuit signal detecting device 6a as a charging condition detecting device 6 for detecting that each meter 11 to be charged is in an uncharged state by stopping the sending of the short circuit signal when Therefore, the uncharged time is measured, and when the measured time exceeds the uncharged limit time preset in the memory 1c, the notification control is performed. Therefore, the lost instrument is automatically detected. It is possible to manage the meter to be charged and search for the missing meter early.

Example 2. Next, FIG. 3 is an enlarged view showing in detail the connecting portion between the charging connector 3 and the power receiving connector 13 and the charging state detection device 6 in the charging device 1 according to the second embodiment. In the second embodiment, as shown in FIG. 3, when the charging connector 3 and the power receiving connector 13 are fitted,
The connection terminals 3a and 3b of the charging connector 3 are the power receiving connector 1
3 are connected to the connection terminals 13a and 13b, respectively, so that from the charger 1a to the power receiving cable 12
A charging current flows through the to-be-charged instrument 11 via the, but at this time, a resistance R is provided in the connection line between the charger 1a and the charging connector 3 and a voltage drop of a predetermined value or more occurs in the resistance R. A voltage drop detection circuit 6b that outputs a charge detection signal at this time is provided, and the charge detection signal of this voltage drop detection circuit 6b is sent to the CPU 1b. The resistance R and the voltage drop detection circuit 6b are provided for each charging connector 3 corresponding to each meter 11 to be charged, and other configurations are the same as those of the first embodiment shown in FIG. It has a similar configuration.

That is, the resistance R and the voltage drop detection circuit 6b shown in FIG. 2 are connected to the respective meters to be charged 11 according to the fitting connection state of the respective charging connectors 3 and the respective power receiving connectors 13.
Each of which constitutes a charge state detection device for detecting whether it is in a charge state or an uncharged state.
When the transmission of the charge detection signal from the voltage drop detection circuit 6b is stopped, it is determined that the battery is in an uncharged state, the uncharged time is measured in the same manner as in the first embodiment, and the measured time is preset in the memory 1c. Further, when the uncharged limit time of each charged instrument 11 is exceeded, the alarm lamp 2 of the charging connector 3 of the corresponding charged instrument 11 is blinked and the alarm buzzer 5 is sounded to perform notification control.

Therefore, according to the second embodiment, the charger 1
When a charging current flows from a to the meter 11 to be charged through the power receiving cable 12, a resistance R provided in the connection line between the charger 1a and the charging connector 3 and a voltage drop of a predetermined value or more occur in the resistance R. Since the voltage drop detection circuit 6b, which outputs a charge detection signal to the CPU 1b when it occurs, configures the charge state detection device 6 that detects whether each meter to be charged 11 is in the uncharged state or the charged state, the charging connector A normal connector may be used as the power receiving connector 3 and the power receiving connector 13, and it is possible to detect whether each meter 11 to be charged is in an uncharged state or a charged state with a simple configuration,
The same effect as that of the first embodiment can be obtained.

Example 3. Next, FIG. 4 is an enlarged view showing in detail the connecting portion between the charging connector 3 and the power receiving connector 13 and the charging state detecting device 6 in the charging device 1 according to the third embodiment. In the third embodiment, as shown in FIG. 4, a contact detection switch 6c is provided in the charging connector 3, and the contact detection switch 6c is normally energized by a spring (not shown) and the spring. A projecting rod (not shown) that slightly protrudes from the surface of the charging connector 3 that is fitted and connected to the power receiving connector 13 and that is pressed against the spring and moves in the Y direction in the drawing when the power receiving connector 13 is fitted and connected. And a contact portion (not shown) which is closed with the movement of the protruding rod in the Y direction shown in the drawing.
At the time of mating connection with the power receiving connector 13, a detection signal indicating a charge state is sent to the CPU 1b.

At this time, the connection terminals 3a and 3b of the charging connector 3 are connected to the connection terminals 13a and 1b of the power receiving connector 13.
By being connected to each of 3b, the charged instrument 11
The power source 11 a of the charging device 1 is connected to the charging device 1 via the power receiving cable 12.
It is adapted to be charged by the charger 1a. Then, the contact detection switch 6c is used for each meter to be charged 11
The charging connector 3 is provided in correspondence with the above, and other configurations are similar to those of the first embodiment shown in FIG.

That is, the contact detection switch 6 shown in FIG.
c is each charging connector 3 and each power receiving connector 13
A charge state detection device that detects whether each of the meter-to-be-charged 11 is in a charged state or an uncharged state in accordance with a fitting connection state with the CPU is detected by the CPU 1b from the contact detection switch 6c. When the signal transmission is stopped, it is determined that the uncharged state is reached, the uncharged time is measured in the same manner as in the first embodiment, and the measured time is not charged in each of the to-be-charged instruments 11 preset in the memory 1c. When the limit time is exceeded, the alarm lamp 2 of the charging connector 3 of the corresponding meter to be charged 11 blinks and the alarm buzzer 5 sounds to perform notification control.

Therefore, according to the third embodiment, the contact detection switch 6c provided in the charging connector 3 generates a detection signal when the power receiving connector 13 is fitted and connected, and each meter to be charged 11 is charged. Since the state-of-charge detection device 6 for detecting whether it is in the uncharged state or the charged state is configured, it is possible to detect whether each of the charged instruments 11 is in the uncharged state or the charged state with a simple configuration. Example 1
The same effect can be obtained.

Example 4. Next, FIG. 5 is a configuration diagram of a charging device according to a fourth embodiment shown corresponding to the first embodiment shown in FIG. 5 (a) and 5 (b), FIG. 1 (a) and 1 (b)
The same parts as those of the first embodiment shown in FIG. As a new code, 7 indicates a time setting device provided on the surface of the charging device 1. The time setting device 7 is
The uncharged limit time of the meter 11 to be charged can be variably set for each charging device 1. As other configurations, the same configurations as those of the first embodiment illustrated in FIGS. 1A and 1B are provided.

That is, in the first embodiment described above,
The uncharged limit time of the to-be-charged instrument 11 is preset and stored in the memory 1c, but in the fourth embodiment, the above-mentioned time setting device 7 variably sets each charging device 1 and the set to-be-charged instrument is set. The uncharged limit time of 11 is stored in the memory 1c by the CPU 1b. This allows
Similarly to the first embodiment, when the CPU 1b confirms that the charged instrument 11 is in the uncharged state, it stores the instrument number of the corresponding charged instrument 11 in the memory 1c and measures the uncharged time. , Its measurement time is the above memory 1c
When the uncharged limit time set in advance is exceeded, the battery may be insufficiently charged and may be lost. Therefore, the alarm lamp 2 for each charging connector 3 of the corresponding meter 11 to be charged blinks and the alarm buzzer 5 is activated. Notification is controlled by, for example, ringing. The uncharged limit time of the meter 11 to be charged needs to be set for each office by strictly controlling the office environment and lost time. By providing the time setting device 7, the office environment for each office can be improved. It is possible to variably set the uncharged limit time according to.

Therefore, according to the fourth embodiment, the time setter 7 for setting the uncharged limit time of the meter 11 to be charged.
Since the set uncharged limit time of the to-be-charged instrument 11 is stored in the memory 1c, the uncharged limit time corresponding to the workplace environment and management of lost time can be variably set for each charging device. You can

Example 5. Next, FIG. 6 is a configuration diagram of a charging device according to a fifth embodiment shown corresponding to the fourth embodiment shown in FIG. 5A and 5B in FIGS. 6A and 6B.
The same parts as those in the fourth embodiment shown in FIG. As a new code, 11c is a memory provided in each of the charged instruments 11.
In c, its own instrument number is stored, and at the time of charging, the CPU 1b of the charging device 1 reads the instrument number stored in the memory 11c via the charging cable 12, and the to-be-charged instrument 11 from the charging device 1 is read. When removed, the uncharged time is measured for each instrument number, and the uncharged time for each instrument number is recorded in the memory 1c.

That is, in the above-described first to fourth embodiments, each charging connector 3 is managed by the name tag 4, and one charging connector 3 is limited to one.
In the fifth embodiment, each charging connector 3 is not limited to a specific person, and any charging connector 3 can be used as long as it is the same charging device 1. The same charging device 1 can be used. Also, the alarm buzzer 5 that sounds when the uncharged time exceeds the uncharged limit time is shared by each charging connector 3, but the alarm 8 for each instrument number is provided with the display 8 on the charging device 1 and the CPU 1b is used. The content of the warning is clearly stated. Further, a time setter 7 is provided on the surface of the charging device 1, and the time setter 7 can variably set the uncharged limit time of the meter 11 to be charged for each charging device 1. As other configurations, the same configurations as those of the first embodiment illustrated in FIGS. 1A and 1B are provided.

In the fifth embodiment, the time setting device 7 variably sets each charging device 1, and the set uncharged limit time of the meter 11 to be charged is set by the memory 1c by the CPU 1b.
By storing it in the CPU 1, as in the first embodiment,
b confirms that the to-be-charged instrument 11 is in an uncharged state, stores the instrument number or the like read from the memory 11c of the corresponding to-be-charged instrument 11 in the memory 1c, and measures the uncharged time, Measurement time is the above memory 1c
When the uncharged limit time set in advance is exceeded, the battery may be insufficiently charged and may be lost. Therefore, the alarm buzzer 5 is sounded and an alarm for each instrument number of the meter 11 to be charged corresponding to the display 8 is issued. Can be distinguished and specified.

Therefore, according to the fifth embodiment, each memory device 11 to be charged is provided with a memory 11c storing its own device number, and at the time of charging, the CPU 1b of the charging device 1 causes the memory 11c via the charging cable 12 to operate the memory. When the meter number stored in 11c is read and the meter to be charged 11 is removed from the charging device 1, the uncharged time is measured for each meter number, and the measured time is the uncharged limit time set by the time setter 7. Since the alarm buzzer 5 is sounded and the alarm for each instrument number of the instrument 11 to be charged corresponding to the display 8 is distinguished and clearly indicated, the insufficient charging state when exceeding the limit is
Without managing each charging connector 3 with a name tag, regardless of which charging connector 3 is used, no matter how much charging connector 3 is used, the uncharged time is set to the uncharged limit time after the charged instrument 11 is removed after charging. When it exceeds, the alarm buzzer 5 sounds the insufficient charging state of the to-be-charged instrument 11, the instrument number of the corresponding to-be-charged instrument 11 is specified and clearly indicated by the display 8, and an alarm can be issued.

Example 6. Next, FIG. 7 shows a charging device according to a sixth embodiment. In the fifth embodiment described above, an alarm is displayed on the display 8. However, in the fourth embodiment, the printer 9 is provided and the alarm record is printed.
Recording on paper is possible. Other configurations are the same as those in the fifth embodiment.

Example 7. Next, FIG. 8 shows a charging device according to the seventh embodiment. In the first to fourth embodiments described above, the uncharged limit time is fixed to one time, but in this seventh embodiment, the individual time setting device 10 that can set the time for each charging connector 3 is provided. That is, the reference time is set by the time setting device 13, and is mainly set to the maximum on-site carry-out time of one day. In the case of a business trip, a direct visit to the site, or a direct return from the site, there is a case of taking out for one day or more, which may exceed the reference time. Therefore, the charging device 1 is provided with the individual time setting device 10 to manage the time. I do. As a result, it is possible to manage only the instruments that are going on a business trip, going straight to the site, or going back from the site in a separate time, so there is no need to consider the time for the trip to the site or going straight to the site or going back from the site at the reference time. It can be shortened within 24 hours, and the management of loss can be tightened.

Example 8. Next, FIG. 9 shows a charging device according to the eighth embodiment. In each of the above-described embodiments, each charging device 1 has its own system, and the charging device 1 used by the user is fixed. Therefore, although it is good to use it alone, an error may occur when using a plurality of charging devices 1. In the eighth embodiment, as shown in the configuration diagram of FIG. 9, the charging device is divided into a charging device master unit 1A and a charging device slave unit 1B, and a charger 1a and a meter 11 to be charged are provided on the charging device slave unit 1B side. The data unit 1d for managing the number is incorporated, the slave terminal 1e of the charger slave 1B and the transmission terminal 1f of the charger master 1A are connected, and the C of the charger master 1A is connected.
The PU 1b manages data in the data section 1d of the charging device slave unit 1B. When the CPU 1b detects the charged meter 11 that has reached a predetermined uncharged time, it sounds the alarm buzzer 5 of the charging device master unit 1A, displays the abnormal content on the display 15 (or the printer 16) and may be lost. By prompting confirmation of the charging meter 11, a plurality of charging device slave units 1B can be managed. According to this Example 8,
Since all the data is managed by the memory 1c of the master device 1A of the charging device, the user may connect the to-be-charged instrument 11 to any unused charging connector 3. In addition, the internal configuration of the charging device slave unit 1B is simplified and the price is reduced.

Example 9. Next, FIG. 10 shows a charging device according to the ninth embodiment. In the above-described eighth embodiment, the number of charging device slave units 1B connected is limited by the number of transmission terminals 1f of the charging device master unit 1A, but as a method of increasing the number of charging device slave units 1b, FIG. As shown, a plurality of charging device slave devices 1B are connected from the charging device master device 1A to the bus line 1g.
And the data is transmitted to the charging device master unit 1A through the bus line 1g. According to the ninth embodiment, regardless of the number of the transmission terminals 1f of the charging device base unit 1A,
The number of charging device slave units 1B can be increased.

Example 10. Next, FIG. 11 shows a charging device according to the tenth embodiment. In the eighth and ninth embodiments described above, the data of the charging device slave unit 1B was managed by the charging device master unit 1A, but in the tenth embodiment, the personal computer 20 is used.
It was designed to be done in. The advantage of this method is that only one type of charging device, the charging device slave unit 1B, is used.
By registering the instrument number and the name of the user in advance, it is possible for the user to immediately display the alarm when there is a loss alarm.

[0044]

As described above, according to the present invention, a plurality of charging connectors respectively fitted and connected to the power receiving connectors provided at the tips of the power receiving cables of the plurality of instruments to be charged, and these power receiving connectors are provided. In a charging device provided with a charger that is connected to charge each of the above-mentioned charged instruments,
A storage unit that stores the uncharged limit time of each of the plurality of charged instruments, and each of the charged instruments is in a charged state or an uncharged state according to the mating connection state of the charging connector and the power receiving connector. And a charging state detecting device for detecting whether or not each of the charged state measuring devices are in charge state, and measuring the uncharged time of each of the charged instruments based on the detection signal of the charging state detecting device. By providing the control means for performing the notification control when the charging limit time is exceeded and the notification means controlled by the control means, the management of the meter to be charged by automatically detecting the lost instrument is performed. This has the effect of enabling the early search for lost instruments.

Further, the charging state detecting device detects a short circuit between the connection terminals of the connector when the charging connector and the power receiving connector are mated and connected, and sends a short circuit signal indicating the charging state to the control means. By configuring with a signal detection device, the uncharged limit time for each instrument to be charged is set in the storage means, and each charging connector of the charging device and the mating connection of the power receiving connector at the tip of the power receiving cable of each instrument to be charged are connected. When the condition is released, sending of the short circuit signal is stopped and it is detected that each charged instrument is in an uncharged state,
The control means measures the uncharged time, and when the measured time exceeds the uncharged limit time preset in the storage means, notification control is performed, so that the lost instrument is automatically detected. It is possible to manage the charged instrument relatively easily.

Further, as the charging state detecting device, a resistor provided in a path of a charging current flowing from the charger toward the power receiving connector when the charging connector and the power receiving connector are mated and connected, and a predetermined value for the resistor. With a voltage drop detection circuit that sends a charge detection signal indicating the charging state to the control means when a voltage drop of a value or more occurs, a charging current flows from the charger to the charged instrument through the power receiving cable. At this time, the resistance provided in the connection line between the charger and the charging connector and the voltage drop detection circuit that outputs the charging detection signal to the control unit when a voltage drop of a predetermined value or more occurs in the resistance, You can use a normal connector as the power receiving connector, with a simple configuration,
It is possible to detect whether each meter to be charged is in an uncharged state or a charged state.

Further, the charging state detecting device is provided in the charging connector, and when the charging connector and the power receiving connector are fitted and connected, a surface thereof contacts the power receiving connector to generate a detection signal. The contact detection switch that sends out to the control means as a charge detection signal indicating the charging state allows the contact detection switch provided in the charging connector to generate a detection signal at the time of mating connection with the power receiving connector. Thus, it is possible to detect whether each meter to be charged is in an uncharged state or a charged state with a simple configuration.

Further, by providing the time setting device for variably setting the uncharged limit time of the meter to be charged stored in the storage means, the uncharged limit time corresponding to the work environment and management of lost time is charged by the charging device. Also, it is possible to enable variable setting for each charging connector.

Further, a display means for displaying the instrument number of the instrument to be charged is provided, and the control means stores it in the storage section in the instrument to be charged when the charging connector and the power receiving connector are fitted and connected. When the meter number is read and the mating connection state between the charging connector and the power receiving connector is released, the uncharged time for each meter number of the meter to be charged is measured, and the measured time exceeds the uncharged limit time. By specifying and displaying the insufficient charging state at this time on the display means, it is possible to display the uncharged state for each instrument number of the instrument to be charged.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a charging device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a charge state detection device according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram of a charge state detection device according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of a state-of-charge detecting device according to a third embodiment of the present invention.

FIG. 5 is an overall configuration diagram of a charging device according to a fourth embodiment of the present invention.

FIG. 6 is an overall configuration diagram of a charging device according to a fifth embodiment of the present invention.

FIG. 7 is a configuration diagram of a charging device according to a sixth embodiment of the present invention.

FIG. 8 is a configuration diagram of a charging device according to a seventh embodiment of the present invention.

FIG. 9 is an overall configuration diagram of a charging device according to Embodiment 8 of the present invention.

FIG. 10 is an overall configuration diagram of a charging device according to a ninth embodiment of the present invention.

FIG. 11 is an overall configuration diagram of a charging device according to Embodiment 10 of the present invention.

FIG. 12 is a configuration diagram of a charging device according to a conventional example.

FIG. 13 is a diagram showing the internal system configuration of a conventional charging device.

[Explanation of symbols]

1 charging device, 1A charging device parent device, 1B charging device child device, 2 alarm lamp, 3 charging connector, 5 alarm buzzer, 6 charging state detecting device, 6a short circuit signal detecting device,
6b Voltage drop detection circuit, R resistance, 6c Contact detection switch, 7 hour setting device, 8 display, 9 Printer, 10 Individual time setting device, 11 Charged instrument, 11
a charger, 11b CPU, 11c memory, 12
Power receiving cable, 13 power receiving connector.

Claims (6)

[Claims] 1. A plurality of charging connectors, each of which is fitted and connected to a power receiving connector provided at a tip portion of a power receiving cable of the plurality of charged devices, and each of the charged devices connected to these power receiving connectors to charge each of the charged devices. In a charging device including a charger, a storage unit that stores the uncharged limit time of each of the plurality of chargeable instruments, and each charge target according to a fitting connection state of each charging connector and each power receiving connector. A charge state detection device that detects whether the instrument is in a charged state or an uncharged state, and the uncharged time of each instrument to be charged is measured based on the detection signal of each of the charge state detection devices, and their measurement is performed. It is characterized by further comprising: control means for performing notification control when the time exceeds the uncharged limit time set in the memory, and notification means for notification control by the control means. And charging device. 2. A short-circuit as the charge-state detecting device, which detects a short-circuit between connecting terminals of the connector when the charge connector and the power-receiving connector are mated and connected, and sends a short-circuit signal indicating a charge state to the control means. The charging device according to claim 1, wherein the charging device comprises a signal detection device. 3. The charging state detection device, a resistor provided in a path of a charging current flowing from the charger toward the power receiving connector when the charging connector and the power receiving connector are mated and connected, and a predetermined value for the resistor. 2. The charging device according to claim 1, further comprising a voltage drop detection circuit that sends a charge detection signal indicating a charge state to the control means when a voltage drop of a value or more occurs. 4. The charging state detecting device is provided in the charging connector, and when the charging connector and the power receiving connector are fitted and connected, a surface thereof contacts the power receiving connector to generate a detection signal. 2. The charging device according to claim 1, wherein the charging device comprises a contact detection switch which sends a charging detection signal indicating a charging state to the control means. 5. The charging device according to claim 1, further comprising a time setting device that variably sets an uncharged limit time of the meter to be charged stored in the storage means. 6. A display means for displaying the instrument number of the instrument to be charged is provided, and the control means stores it in a storage section in the instrument to be charged when the charging connector and the power receiving connector are mated and connected. When the instrument number is read and the fitting connection state between the charging connector and the power receiving connector is released, the uncharged time for each instrument number of the instrument to be charged is measured,
The charging device according to any one of claims 1 to 5, wherein a shortage state of charging when the measured time exceeds the uncharged limit time is specified and displayed on the display means.