Interlock outlet with mis-insertion detection (multiple outlet tap type)

Abstract

To provide an interlock type outlet with mis-insertion detection that prevents accidents caused by user operation errors or overloads and improves safety. [Solution] The mis-insertion detection interlock outlet is a multi-port outlet with an interlock mechanism that has a built-in current detector and temperature sensor in the extension strip body with multiple power ports, and cuts off the current and issues an alarm when it detects overcurrent or overheating. This prevents accidents caused by user operation errors or overloads, and increases safety by alerting with an audible sound.

Description

[Technical Field]

[0001] This device relates to an extension tap device used to power electrical equipment, and to an interlocking outlet equipped with a safety mechanism that automatically shuts off and issues an alarm in the event of overcurrent or overheating. [Background technology]

[0002] Many conventional power strips and power strips with power meters display power consumption, but they do not issue an alarm to the user even if they detect overcurrent or overheating, making it difficult to prevent fires and damage to equipment. Summary of the Invention [Problem to be solved by the invention]

[0003] The purpose of this device is to cut off the power supply when an abnormality is detected, warn with a buzzer and an indicator light, and prevent the user from operating it incorrectly or reconnecting it, thereby improving safety. [Means for solving the problem]

[0004] This device is equipped with a current sensor, temperature sensor, buzzer, and relay circuit, and is configured to shut off the main circuit and issue an alarm when an abnormality is detected. After shutting off, power can be restored by pressing a manual reset switch. [Effects of the Invention]

[0005] According to this invention, when an overcurrent or overheating condition is detected, the power supply can be immediately cut off and an alarm can be issued, thereby preventing accidents caused by the incorrect use of extension taps and improving safety. [Brief explanation of the drawings]

[0006] [Figure 1] External view of the mis-insertion detection interlocking socket of the present invention [Figure 2] Internal block diagram of the device [Figure 3] Operation flow of this device DETAILED DESCRIPTION OF THE INVENTION

[0007] This invention relates to an extension strip that automatically cuts off power and issues an alarm when it detects overcurrent or overheating. As shown in FIG. 1, the main body (1) has a plurality of power supply ports and is equipped with a current detection unit and an interlock relay inside. The current detection unit constantly monitors the current value of the connected device, and outputs an overcurrent signal when the current value exceeds a predetermined value. As shown in Figure 2, the current detection signal is input to an interlock relay, which cuts off the power to the main circuit. At the same time, the indicator light and alarm signal terminal are activated to notify the user of the abnormality by light or sound. After the circuit is shut off, it can be restored to its normal state by operating the reset switch. FIG. 3 shows the flow of operations from overcurrent detection to cutoff. When an overcurrent is detected, an alarm and display will be activated and then the main circuit will be automatically shut off. The disconnected state is maintained until safety is confirmed, and power will not be restored unless the user operates the erroneous insertion release operation and the reconnection switch. This device can prevent overheating and fire accidents caused by incorrect extension connections or overloads. In addition, the alarm mechanism allows for early detection of abnormalities. Therefore, it is effective in enhancing safety not only in homes but also in a variety of environments such as offices and factories. [Example]

[0008] In one embodiment of this device, a three-port power strip incorporates a current sensor and control board. When an overcurrent is detected, a buzzer sounds and the main power relay is shut off. The user can then press the reset switch to restore normal operation after confirming safety. Alternatively, each power strip may be equipped with its own independent monitoring circuit. [Industrial Applicability]

[0009] This device can be widely used as an electricity supply device for homes, offices, and factories, and is particularly useful as a new safety standard device for safely using high-load appliances (microwave ovens, heaters, hair dryers, etc.). [Prior art documents]

[0010] JP 2001-118644 A (Power strip with current detection, alarm and reset) JP 11-111411 A (Multifunctional outlet with extension cord. Activates alarm buzzer upon overcurrent detection) · The effect of the invention of US7,154,402 (Power strip with smoke detection auto-shutoff)

[0011] Conventional technology controlled shutdown based on the detection of a single abnormality such as overcurrent or smoke, and was not designed to adequately detect localized heating caused by prolonged electrical current flow or poor contact. This device is designed to issue an alarm and shut off the power based on both current and temperature detection, and after shutting off the power will not be restored unless the incorrect insertion is removed and the reconnection switch is operated. This provides multiple levels of protection against overcurrent, overheating, and incorrect operation, making it even more reliable at preventing fires and electric shock accidents.

Claims

[Claim 1] This is an interlock type outlet with mis-insertion detection, which has a current detection unit and a temperature sensor built into the extension tap body with multiple power supply ports, and cuts off the current when it detects an overcurrent or overheating, and issues an alarm with a buzzer and an indicator light.

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