Rotary charging device

Abstract

To provide a rotary charging device that can charge all groups with a simple configuration when there are a plurality of groups of devices to be charged and rotary charging is performed.SOLUTION: A rotating charging device includes a plurality of outlet taps 1 that supply charging power to connected devices, a control unit 5 that performs grouping for each outlet tap 1 and performs rotation charging for each group, a setting unit 3 that sets a switching time of rotation charging and changes a chargeable time zone, and a display unit 4 that displays an alarm when the time is not set to make one or more rounds of all groups in a time zone in which the set switching time can be charged.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a rotational charging device that charges a plurality of devices equipped with storage batteries in sequence. [Background technology]

[0002] There is a charging device that simultaneously charges multiple devices equipped with storage batteries, such as tablet terminals. For example, dozens of tablet terminals are used at a time in schools, so dozens of terminals are also charged at the same time. This charging is performed by equipping the storage unit that stores the tablet terminals with a charging function so that the terminals are charged while they are stored. For this reason, it was necessary to control the current flowing through the outlet during charging so that it did not exceed the rated current.For example, in Patent Document 1, when storing and charging devices in a storage device (storage unit), even if multiple storage units are connected to one outlet, they are not simultaneously put into a charging state, but the charging power is switched for each storage unit in turn, so that the current does not exceed the rated current in the outlet circuit. In addition, in Patent Document 2, it is determined in advance whether the current will exceed the rated current of the circuit, and if it is determined that it will, charging is performed in rotation for each group. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-171729 A [Patent Document 2] JP 2016-108122 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the technology of Patent Document 1, charging of the devices stored in each storage unit does not start until charging of the next storage unit is completed, so there are cases where the usage time of the stored devices comes before charging of the last storage unit is completed. In such cases, there are cases where some devices are not charged. In addition, the technology in Patent Document 2 uses rotational charging to control the charging current so that it does not exceed the rated capacity of the circuit, but it requires an initial process of measuring the current for each group and deciding whether to rotate or charge all at once, which makes the control complicated. In addition, it requires current and voltage information for the charging circuit, resulting in a complex circuit configuration.

[0005] In view of these problems, the present invention aims to provide a rotational charging device that can charge all groups of devices without omissions with a simple configuration when there are multiple groups of devices to be charged and rotational charging is performed. [Means for solving the problem]

[0006] In order to solve the above problem, the invention of claim 1 is a rotational charging device having a plurality of power supply units that supply charging power to connected devices, the power supply units being divided into groups, and performing rotational charging for each group, The length of charging time for each group a switching time setting unit that sets a switching time for switching between the charging modes and a charging control unit that performs rotational charging by switching between the charging modes at the set times; and a display unit that displays an alarm, and the charging control unit displays an alarm on the display unit if the length of the charging time for each set group is not set to a time that covers at least one cycle of all the groups during a set chargeable time period. It is characterized by: With this configuration, the switching time for rotating charging can be set, so if the time period during which charging is possible is short, the switching time can be shortened. This prevents the occurrence of groups that are not charged, and makes it possible to charge devices in all groups with a simple configuration that does not require a current sensor or the like.

[0007] and, If the timing for switching between rotational charging is long compared to the time period when charging is possible, resulting in a group that cannot be charged during the time period when charging is possible, an alarm will be displayed, thereby preventing a situation in which some devices cannot be charged.

[0008] Claim2 The invention is as follows: 1 The configuration described above is characterized by having a charging time period changing unit that changes the time period during which charging is possible. According to this configuration, since the time period during which charging is possible can be changed, the charging time can be set taking into consideration the operating conditions of other loads, etc., and charging can be performed while taking into consideration the overall power consumption. Effect of the Invention

[0009] According to the present invention, since the switching time for rotating charging can be set, when the time period for charging is short, the switching time can be shortened and it becomes possible to charge the devices of all groups regardless of the total charging time, thereby preventing the occurrence of groups that are not charged. [Brief description of the drawings]

[0010] [Figure 1] 1 is a functional block diagram showing an example of a rotational charging device according to the present invention; [Diagram 2] 10 is a flowchart showing a flow of operations for setting charging control. [Diagram 3] FIG. [Figure 4] FIG. 4 is a timing chart showing an example of rotational charging. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a functional block diagram showing an example of a rotational charging device according to the present invention. The rotational charging device includes a power strip 1 as a plurality of power supply units, a switching unit 2 that opens and closes an electric circuit that supplies power to the power strip 1, an operation unit 3 that sets the charging switching time and the like, a display unit 4 that displays the setting contents and abnormalities, a control unit (charging control unit) 5 that controls charging according to the settings, a power circuit 6 that supplies power to each circuit, and the like. Also, 7 is a power plug for receiving power supply from a commercial power source or the like. Commercial power is supplied to each power strip 1 via the power plug 7 and the switching unit 2.

[0012] Here, the outlet tap 1 has four outlets (plug connection parts), and one outlet tap can be used to connect four devices, such as tablet terminals. As a result, one rotation charger can be used to connect 16 devices. Each outlet tap 1 constitutes one charging group, and the system is configured to have four charging groups, 1st to 4th (1a to 1d).

[0013] 2 is a flow chart showing the flow of operations for setting charging control. First, the time to start charging and the time to end charging are set (S1). However, the control unit 5 stores a preset charging time, for example, a time period from 6:00 to 18:00 as the charging time. If charging is to be performed during this time period, the start time and end time setting operations are not performed and the process proceeds to the next setting. Next, the day of the week for charging is set (S2), and then the switching time for switching the charging group is set (S3). After the setting is completed, the execution process (S4) is started, and a check is made to see if the device is operating normally.

[0014] In this execution process, it is determined whether charging of all groups will be completed at least once between the set start time and end time (S5), and if not, a warning is issued, the process returns to the switching time setting, and the execution process stops. In this case, the warning action is, for example, a message such as "Charging time is insufficient" is displayed on the display unit 4, and a warning sound is also generated. If the setting is to perform one or more cycles (Yes in S5), the execution process continues, charging control is started, and the operation ends.

[0015] After that, if it is within the set charging time period, charging will be carried out, and after the set switching time has elapsed, the charging group will be switched in sequence and rotation charging will be carried out. If it is not within the set charging time period, charging will not start until the charging time period begins, and the system will wait for the charging time period to begin.

[0016] FIG. 3 is an explanatory diagram of the operation unit 3 and the display unit 4. The operation unit 3 includes a setting button M1, up and down movement key buttons M2 and M3, and a confirmation button M4. To change or set the charging start time, end time, etc., select the item you want to set by operating the setting button M1, and have the start time, end time, etc. displayed on the display unit 4. Then, change the time by operating the up and down movement keys M2 and M3, and when the desired time is reached, operate the confirmation button M4 to set it. However, if the preset time zone is not to be changed, this setting process is not performed and the process proceeds to the next setting. Setting the day of the week and the switching time are also performed using the same operations, and are set sequentially by operating the operation unit 3. If there are no days of the week when charging is prohibited, there is no need to set the day of the week.

[0017] Fig. 4 is a timing chart showing an example of rotation charging set in this way. Fig. 4 shows a case where the charging start time is set to 8:00, the charging end time is set to 17:00, and the switching time is set to 1 hour. In this case, the four charging groups (1a to 1d) consisting of the four outlet taps 1 are charged in two cycles, and further, only the first group 1a is charged in three cycles.

[0018] In this way, since the switching time for rotating charging can be set, the switching time can be shortened when the time period during which charging is possible is short. This makes it possible to prevent the occurrence of groups that are not charged, and makes it possible to charge devices in all groups with a simple configuration that does not require a current sensor or the like. If the timing for switching between rotational charging is long compared to the time period when charging is possible, resulting in a group that cannot be charged during the time period when charging is possible, an alarm will be displayed, thereby avoiding a situation where a device cannot be charged during the time period when charging is possible. Furthermore, since the time for which charging power is supplied can be changed, the charging time can be set taking into consideration the operating conditions of other loads, and charging can be performed taking into consideration the overall power consumption.

[0019] In the above embodiment, the charging time period is set to cycle through the groups two or more times, but all devices can be charged by setting it to cycle through at least one time. However, if it is expected that the devices will be taken out and used again before the end of the charging time period, it is preferable to set it to cycle through the groups two or more times as in the above embodiment. [Explanation of symbols]

[0020] 1··Outlet tap (power supply section), 2··Opening / closing section, 3··Operation section (switching time setting section, charging time zone changing section), 4··Display section, 5··Control section (charging control section).

Claims

1. A rotational charging device having a plurality of power supply units that supply charging power to connected devices, the power supply units being divided into groups, and performing rotational charging for each group, a switching time setting unit that sets a length of a charging time for each group of the rotation charging; A charge control unit that switches between charging devices at set times and performs rotational charging; A display unit that displays an alarm, The rotation charging device is characterized in that the charging control unit displays an alarm on the display unit if the length of the charging time set for each group is not set to a time that covers all groups at least once during the set chargeable time period.

2. 2. The rotational charging device according to claim 1, further comprising a charging time zone changing unit for changing the chargeable time zone.

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