Electric loop line quality detection device
A technology of detection device and electrical circuit, applied in the direction of measurement device, measurement of electricity, measurement of electrical variables, etc., can solve the problems of aging of power lines, excessive heat generation, and bulky volume.
Pending Publication Date: 2022-02-18
ZEROPLUS TECH CO LTD
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Problems solved by technology
Therefore, after the power line has been used for a certain number of years, it will be heated and cooled repeatedly, which will cause the power line to age and increase the line resistance. After the line resistance increases, more heat will be generated, which will accelerate the aging of the power line.
[0004] However, general users cannot know the aging state of the power line, and can only judge whether to replace the power line according to the time of power line configuration and the normal power consumption situation.
In this way, if the power line is too old to be used before it is replaced, the high temperature generated by the power line may ignite surrounding objects and cause a fire hazard
[0005] The resistance of a good power line is usually below 1 ohm. Even the electrical resistance of an aging and unusable power line is only a few ohms. The general electric meter cannot measure it accurately, and the impedance sold on the market is used to measure low resistance. The analyzer is not only expensive, but its bulky and inconvenient factors are not easy to apply to the impedance detection of power lines in the home
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[0013] In order to illustrate the present invention more clearly, preferred embodiments are given and described in detail with accompanying drawings as follows. Please refer to figure 1 As shown, it is the electrical circuit line quality detection device 1 of the first preferred embodiment of the present invention, which includes a housing 10 and two electrical connectors 12, a load resistor 14, a switching element 16, A display module 18 and a control module 20 .
[0014] The two electrical connectors 12 are used to be inserted into a socket 100, and the socket 100 is electrically connected to two power lines 200, and the two power lines 200 are connected to an AC power supply 300, and the AC power of the AC power supply 300 is The voltage can be 100-240V.
[0015] The load resistor 14 has two ends, one end of which is electrically connected to one of the two electrical connectors 12 . The load resistor 14 is a power resistor, and the resistance value is 10 ohms as an exam...
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An electric loop line quality detection device comprises two electric connecting pieces, a load resistor, a switch element, a display module and a control module, and the two electric connecting pieces are inserted into a socket and are connected with two power lines; one end of the load resistor is connected with the electric connector, and the other end is connected with a first end of the switch element; a second end of the switch element is connected with the other electric connecting piece; in a detection mode, the control module controls the switching element to be switched off, detects a peak voltage in a voltage waveform and records the peak voltage as a maximum open-circuit voltage, then controls the switching element to be switched on, detects the peak voltage in the voltage waveform and records the peak voltage as a load voltage, and calculates a load current; a line resistance value is calculated according to the maximum open-circuit voltage, the load voltage and the load current, and a corresponding message is displayed through the display module.
Description
technical field [0001] The invention is related to the aging detection of power lines; in particular, it refers to a detection device for the quality of electric circuit lines. Background technique [0002] Generally, power wiring is to connect one end of two power lines to an AC power supply, and connect the other end of the two power lines to a socket, and the power of the AC power supply is conducted to the socket through the two power lines. When the user inserts the plug of the electric device into the socket, the power of the AC power supply can be supplied to the electric device to make the electric device operate. [0003] Although the power line can conduct electricity, since the power line is not an ideal conductor, there is still line resistance. Therefore, when the current of the AC power supply flows through the power line, the power line will generate heat due to the line resistance. The higher the resistance of the power line or the higher the current flowing...
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IPC IPC(8): G01R27/08
CPCG01R27/08G01R31/58G01R31/2887
Inventor 郑秋豪吴典舆
Owner ZEROPLUS TECH CO LTD