Power strip with timer

Abstract

To provide a power supply tap with a timer, to multiple plug insertion ports of which multiple devices are connected, which does not shut off a breaker of a power supply even when a large amount of power is required when energized by a timer.SOLUTION: The power supply tap 1 with a timer includes: a power supply tap 3 provided with six plug insertion ports 2 (2a to 2f); and a timer unit 4 for setting the timer. The power supply tap 3 includes a case 5 made of synthetic resin. A power cable 6 is attached to the power supply tap. Power is supplied from the power cable 6 to the plug insertion ports 2 via an internal metal terminal. The timer unit 4 is connected to the power supply tap 3 via a connection cable 7. When time reaches a set time, a control unit 12 first supplies power to the plug insertion ports 2a. Next, the control unit 12 supplies power to the (n+1)th, that is, a plug insertion port 2b after a lapse of a predetermined delay time (for example, 0.5 seconds).SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a power tap that can accept multiple power plugs and has a timer function. [Background technology]

[0002] Conventionally, power strips having multiple plug insertion ports so that multiple power plugs can be inserted have been known. For example, the applicant of the present application has proposed various power strips, such as a power strip having multiple plug insertion ports whose angles can be changed (see Patent Document 1). Multiple devices are connected to this type of power strip, and the power of each device is turned on / off as needed.

[0003] Power strips with timer functions are also known, which allow the timer to turn on and off the power to each plug insertion port of the power strip, and also turn on and off the devices connected to the power strip. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2017-076593 Summary of the Invention [Problem to be solved by the invention]

[0005] In a power strip with a timer function, when the timer activates the power supply to each plug insertion port, current is supplied to all the plug insertion ports simultaneously. At this time, so-called inrush current, which occurs when power is supplied to electrical devices connected to the plug insertion ports, may occur simultaneously in multiple plug insertion ports.

[0006] Furthermore, if a power strip has a large number of plug insertion ports and each port supplies a large current, a large current may flow through the power plugs and the cables extending from the power plugs. In such cases, depending on the magnitude of the current, there is a risk that the breaker for the outlet to which the power strip is connected may be tripped.

[0007] To provide a power tap with a timer that does not trip a power breaker even when a plurality of devices are connected to a plurality of plug insertion ports and a large amount of power is required when energizing by the timer. [Means for solving the problem]

[0008] In order to achieve the above object, the power strip with timer of the present invention comprises: multiple and a timer unit that supplies or cuts off power to the plug insertion ports, wherein the timer unit supplies or cuts off power to each of the plurality of plug insertion ports. Power on time It is equipped with an operation unit for setting A switch is provided for each of the plug insertion ports, and a control unit is provided to control each of the switches. The control unit is connected to the timer unit via a connection cable. When power is set to be supplied to all of the plurality of plug insertion ports at a certain time, the control unit sets one of the plurality of plug insertion ports as a first plug insertion port when the time reaches the energization time for energizing, and first turns on the switch of the first plug insertion port to start supplying power to the first plug insertion port. Next, the control unit turns on the switch of the n+1th plug insertion port (n is an integer equal to or greater than 1) after a predetermined delay time has elapsed to supply power. It is characterized by:

[0009] According to the power strip with timer of the present invention, even if the timer is set to simultaneously energize multiple plug insertion ports at the power-on time, the first plug insertion port is energized at the power-on time, and then, after a predetermined delay, the other plug insertion ports are energized. This configuration prevents the so-called inrush current that occurs when power is applied to electrical devices connected to the plug insertion ports from occurring simultaneously in multiple plug insertion ports, thereby preventing a large current from occurring throughout the power strip as a whole. This prevents problems such as tripping the breaker of the outlet to which the power strip is connected.

[0010] In addition, in the power tap with a timer of the present invention, n+1th The power supply to the plug insertion port is set to be lower than the power supply to the first plug insertion port. The aforementioned n+ 1 of Power to the plug insertion port The aforementioned The timer unit sequentially increments n from 1 and then energizes the (n+1)th plug insertion port after the increment. The aforementioned It can be delayed by a delay time, or before Note n+1th The power supply to the plug insertion port is set to be lower than the power supply to the first plug insertion port. The aforementioned n+ 1 of The timer unit delays the energization of the plug insertion port by a predetermined delay time, and changes the n in random order and then energizes the (n+1)th plug insertion port after the change. The aforementioned This can be done after a delay of the delay time.

[0011] In addition, in the power tap with timer of the present invention, ,before It is preferable that the delay time can be adjusted by the operation unit. With this configuration, the delay time can be adjusted according to the characteristics of the device connected to the power strip, so that the delay time can be set according to the characteristics of each power strip.

[0012] The power strip with timer of the present invention teeth The timer unit includes an operation unit for setting the timer, and the operation unit can set the order of energization of the different plug insertion ports. do. According to this configuration, the order of power supply can be set according to the characteristics of the devices connected to the power strip, making it possible to set the order of power supply according to the characteristics of the loads inserted into each plug insertion port. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is an explanatory diagram showing the appearance of a power strip with a timer according to an embodiment of the present invention; [Figure 2] FIG. 2 is an explanatory diagram showing details of a timer unit in FIG. 1. [Figure 3] FIG. 2 is an explanatory diagram showing the functional configuration of the power tap of FIG. 1; DETAILED DESCRIPTION OF THE INVENTION

[0014] Next, a power tap 1 with a timer according to an embodiment of the present invention will be described with reference to Figures 1 and 2. As shown in Figure 1, the power tap 1 with a timer includes a power tap 3 provided with six plug insertion ports 2 (2a to 2f) and a timer unit 4 that sets the timer.

[0015] The power tap 3 has a case 5 made of synthetic resin, to which a power cable 6 having a power plug 6a attached at its tip is attached, and power is supplied from the power cable 6 to the plug insertion port 2 via an internal metal terminal (not shown). In this embodiment, the power tap 3 has six plug insertion ports, from plug insertion port 2a to plug insertion port 2f.

[0016] A timer unit 4 is connected to the power tap 3 via a connection cable 7. As shown in Fig. 2, the timer unit 4 includes a timer case 8, a display unit 9 that displays the timer, and a setting switch 10 (operation unit) that sets the timer, and turns on and off the power to the plug insertion ports 2a to 2f.

[0017] In the timer-equipped power tap 1 of this embodiment, eight programs P1 to P8 can be set, as shown on the first line of the display 9 of the timer unit 4. As for the contents of the programs, as shown on the second line of the display, numbers 1 to 6 are displayed to indicate the six plug insertion ports 2a to 2f, and programs can be created for the plug insertion ports 2a to 2f corresponding to numbers 1 to 6, respectively.

[0018] Additionally, the third line of the display 9 displays "Time Mon Tues Wed Thurs Fri Sat Sun PGM," allowing a program to be set by specifying the day of the week from Monday to Sunday. Below the day of the week display on the display 9, there are displayed "AM PM," a segment display showing the time, and "Auto On / Off." Details of the timer settings in the timer-equipped power strip 1 of this embodiment will not be explained here.

[0019] Next, the functional configuration of the power tap with timer 1 of this embodiment will be described with reference to Fig. 3. As shown in Fig. 3, switches 11a to 11f are provided for the plug insertion ports 2a to 2f, respectively, and are housed inside a case 5. Also provided inside the case 5 is a control unit 12 that controls the switches 11a to 11f, and this control unit 12 is connected to the timer unit 4 via a connection cable 7.

[0020] The timer-equipped power tap 1 of this embodiment can be programmed to supply or cut off power to each plug insertion port 2 by operating the setting switch 10 of the timer unit 4. Here, a case will be described in which a program is set to supply power to multiple plug insertion ports 2, for example, all of plug insertion ports 2a to 2f, at a certain time.

[0021] In this case, when the time comes to energize, the control unit 12 first turns on switch 11a to start supplying power to the first plug insertion port, plug insertion port 2a. Next, the control unit 12 turns on switch 11b to supply power to the (n+1)th plug insertion port (n is an integer equal to or greater than 1) after a predetermined delay time (e.g., 0.5 seconds) has elapsed.

[0022] At this time, the control unit 12 sequentially adds the number n and turns on switches 11b to 11f to supply power to the second plug insertion port 2b, which is different from the first plug insertion port 2a, the third plug insertion port 2c, and so on, up to the sixth plug insertion port 2f, after a delay time has elapsed.

[0023] In this way, in the power tap with timer 1 of this embodiment, even when power is supplied to multiple plug insertion ports 2, power is first supplied to plug insertion port 2a, and then power is supplied sequentially to the different plug insertion ports after a predetermined delay time has elapsed.

[0024] In the power tap with timer 1 of this embodiment, power is supplied to the other plug insertion ports 2b to 2f after the delay time has elapsed sequentially as described above, so that so-called inrush current does not concentrate, and it is possible to avoid a situation in which a large amount of current flows through the power cable 6 at once.

[0025] In the above embodiment, the control unit 12 sequentially adds the number n for the insertion ports other than the first plug insertion port 2a and turns on the switches 11b to 11f after the delay time has elapsed, but this is not limited to this, and the number n may be selected in any order from 2 to 6 (the number of plug insertion ports) to supply power to the different plug insertion ports. Also, in the above embodiment, the first plug insertion port is set to 2a, but it may also be set to the other plug insertion ports 2b to 2f.

[0026] Furthermore, the power tap with timer 1 of this embodiment can adjust or change the delay time for the plug insertion ports 2a by operating the setting switch 10 of the timer unit 4. The power tap with timer 1 can also change the order of the plug insertion ports to which power is supplied by operating the setting switch 10 of the timer unit 4. For example, after power is supplied to the first plug insertion port 2a, the number n may be sequentially incremented to (n+1), or the number n may be arbitrarily changed.

[0027] In the above embodiment, the timer unit 4 is separated from the timer case 8 of the power tap 3, but this is not limiting, and the timer case 8 and the timer unit 4 may be integrated. [Explanation of symbols]

[0028] 1...power tap with timer, 2...plug insertion port (2a to 2f), 3...power tap, 4...timer unit, 5...case, 6...power cable, 6a...power plug, 7...connection cable, 8...timer case, 9...display unit, 10...setting switch, 11a to 11f...switches, 12...control unit.

Claims

1. A power tap with a timer, comprising: a power tap having a plurality of plug insertion ports; and a timer unit that supplies or cuts off power to the plug insertion ports, the timer unit includes an operation unit for setting a power-on time for each of the plurality of plug insertion ports, a switch is provided for each of the plug insertion ports, a control unit is provided to control each of the switches, and the control unit is connected to the timer unit via a connection cable; If you set it so that power is supplied to all of the multiple plug insertion ports at a certain time, the control unit, when the time reaches the energization time for energizing, sets one of the plurality of plug insertion ports as a first plug insertion port, and first turns on a switch of the first plug insertion port to start supplying power to the first plug insertion port; Next, the control unit turns on the switch to supply power to the n+1th plug insertion port (n is an integer greater than or equal to 1) after a predetermined delay time has elapsed.

2. The power strip with a timer according to claim 1, The power supply to the (n+1)th plug insertion port is energizing the (n+1)th plug insertion port by the delay time with respect to energizing the first plug insertion port; The timer unit sequentially increments n from 1 and delays the power supply to the (n+1)th plug insertion port after the increment by the delay time.

3. The power strip with a timer according to claim 1, The power supply to the (n+1)th plug insertion port is energizing the (n+1)th plug insertion port by a predetermined delay time with respect to energizing the first plug insertion port; The timer unit changes the n in random order and delays the power supply to the (n+1)th plug insertion port after the change by the delay time.

4. The power tap with a timer according to any one of claims 1 to 3, A power tap with a timer, wherein the delay time can be adjusted by the operation unit.

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