JP3096445U - Leakage warning device equipped with 3pin-2pin conversion adapter - Google Patents

Abstract

(57) [Problem] To provide an electric leakage warning device provided with a 3-pin to 2-pin conversion adapter. SOLUTION: An electric leakage warning device provided with a 3-pin to 2-pin conversion adapter has a third hole (an insertion hole for a ground wire of electric equipment).
Is unidirectionally introduced into a 2-pin ground wire (ground wire of the power supply line) via a diode to eliminate the electric leakage of the metal seat plate or casing of the electric appliance and the electric current of the electric appliance, and the electric leakage of the electric appliance is determined. If the current is exceeded, an audible alarm will sound.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a type of adapter that converts 3 insertion holes into 2 pins, and in particular, 3 pins- The present invention relates to a leakage warning device equipped with a 2-pin conversion adapter.

[0002]

[Prior art]

  Generally, most electric appliances such as computers, refrigerators, washing machines, microwave ovens, etc. , 3 pin plug power line is adopted, 2 pin of which is used for connecting with the power source, 3 pin is used to install a metal seat plate or case for electrical equipment, The electric current of the electric equipment is removed, and leakage of electric Eliminate the current flowing through the metal base plate or case.

[0003]   For household use, single-phase two-wire power is supplied, but one of them is grounded. Then, it is used as a ground wire, and the other wire is a connection wire with an ungrounded power source. Three pin plastic The power line of the group cannot be directly used for the 2-pin 2-pin outlet, and the 3-pin-2 pin conversion It will be necessary to use an adapter. Use a 3-pin to 2-pin conversion adapter When used, the third pin will float in the air, which may cause an electric shock. It is not possible to remove the sensitive electric current of electric appliances and appliances.

[0004]

[Problems to be solved by the device]

  The main purpose of the present invention is to solve the drawback of the structure of the 3-pin-2 pin conversion adapter described above. You can use the 3pin-2pin conversion adapter to have the function of grounding the 3rd pin. In addition, if the metal seat plate of the electrical equipment or the case is A warning sound will be generated when the product is turned on, and the user will be notified that severe electrical leakage has occurred in electrical equipment. It is about being able to know.

[0005]

[Means for Solving the Problems]

  The invention of claim 1 relates to an earth leakage warning device equipped with a 3-pin-2 pin conversion adapter. hand,   It is used as a board and has a third pin insertion hole, a diode, a fuse, two second hole pins, 1 resistor, 2 capacitors, 1 buzzer, indicator light, and 1st pin insertion A substrate having a hole and a second pin insertion hole;   It is a 3-pin front case and has a first pin insertion hole, a second pin insertion hole, and a third pin on the front wall. The above-mentioned 3-pin front case having a through hole corresponding to the insertion hole,   2 pin rear case with two through holes corresponding to the second hole pin, 2 pin back case,   One of the two second hole pins is used as the power ground terminal, and the other is the power Power source grounding end of the diode, the fuse, and the two second hole pins And the third pin insertion hole forms a ground, and one of the diode and the two capacitors And a combination of one of the two resistors for the buzzer to generate a warning sound. Power is supplied,   From the front wall of the 3-pin front case, the 3-pin plug of the electrical appliance should have the first pin insertion hole and the second pin The two second hole pins are inserted into the power outlet and the third pin insertion hole. When a metal seat plate or case of electrical equipment is leaked and the sensitive current of electrical equipment is When it is removed and the electric leakage of electrical equipment exceeds a certain current, a warning sound will be generated. A leakage warning device equipped with a 3-pin-2 pin conversion adapter characterized by being formed It is placed.   The invention of claim 2 is a leak which comprises the 3-pin to 2-pin conversion adapter of claim 1. In the electric warning device, one of the two resistors and the indicator lamp are combined to 3 pin-2 pin conversion adapter characterized by displaying the power supply connection line / ground line of It is an earth leakage warning device equipped with a adaptor.   A third aspect of the present invention is a leak provided with the 3-pin-2 pin conversion adapter according to the first aspect. In the electric warning device, the display lamp is a neon lamp. The leakage warning device is equipped with a pin-to-2 pin conversion adapter.   According to a fourth aspect of the present invention, there is provided a leak provided with the 3-pin-2 pin conversion adapter according to the first aspect. In the electric warning device, the second hole pin is a plug connected to the power line. It is a leakage warning device equipped with a 3-pin to 2-pin conversion adapter.

[0006]

[Embodiment of device]

  Please refer to FIGS. Equipped with the 3-pin-2 pin conversion adapter of the present invention The earth leakage warning device includes a board 1, a 3-pin front case 5, and a 2-pin rear case 4. . Among them, the board 1 has a third pin insertion hole C, a diode 2, a fuse 3, and two Second hole pins D, E, two resistors 7, 11, two capacitors 6, 8, one block Zipper 9, neon lamp 10, and first pin insertion hole A and second pin insertion hole B There is. The second hole pin D is used as a power source ground terminal, and the second hole pin E is used as a power source connecting pin. Be done. There is a power / ground wire indicator lamp hole 13 on the front wall of the 3-pin front case 5, A neon lamp 10 is housed in it, and a display pin is attached to one side wall of the 3-pin front case 5. A seat 12 is provided to display the power source connecting line and the ground line. 3-pin front case The front wall of 5 corresponds to the first pin insertion hole A, the second pin insertion hole B, and the third pin insertion hole C. Through holes are provided. The 2-pin rear case 4 corresponds to the second hole pins D and E. It has two through holes.

[0007]   The 3-pin plug of electrical equipment is the first pin insertion hole A on the front wall of the 3-pin front case 5, It is inserted into the 2 pin insertion hole B and the 3rd pin insertion hole C, and the 2nd hole pins D and E are When it is inserted into the switch, the current passes through the diode 2 and the fuse 3 to the second hole. It is unidirectionally introduced to the pin D (that is, the power ground terminal), and the third pin insertion hole C reaches the ground. The effect of removing the sensitive current of electrical appliances is achieved. Next, the third pin of the substrate 1 After the insertion hole C is connected to the diode 2 and further to the capacitor 6, a second hole is formed. After being connected to the pin D and the resistor 7, the capacitor 8 and the buzzer are further connected. -9 is connected. Leakage of the metal seat plate or case of electrical equipment may cause the fuse load. When it exceeds, the fuse 3 is cut off, and the current flows from the third pin insertion hole C to the diode 2 Is introduced into the buzzer 9 via the resistor 7 and the buzzer 9 makes a warning sound. Occur. Neon lamp 10 and resistor 11 match display touch sheet 12, It is a device that displays the power supply connection line and the ground line.

[0008]

[Effect of device]   When using the leakage warning device equipped with the 3-pin-2 pin conversion adapter of the present invention, Not only can you remove the sensitive current of appliances, but also the metal seat plate or case of appliances. If the earth leakage of the battery exceeds the load of the fuse, a warning sound will be generated and the user will be urged to check the electrical equipment. You can be informed that there is a serious leak and take appropriate remedial measures. to this As a result, it is possible to effectively prevent an unexpected injury due to electric leakage.

[0009]   The above is a description of specific embodiments of the present invention, and limits the scope of the present invention. Rather, any modification or alteration of details that can be made based on the present invention is not limited to the present invention. Shall be included in the scope of claims. The present invention has practicality, inventive step, and industrial utility value. Besides, its structure has not been published yet, it has novelty, and it is registered as a utility model. Meets the requirements.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a board of an earth leakage warning device having a 3-pin to 2-pin conversion adapter of the present invention.

FIG. 2 is a plan layout view of each electronic device of the leakage warning device including the 3-pin to 2-pin conversion adapter of the present invention.

FIG. 3 is an exploded perspective view of a leakage warning device having a 3-pin to 2-pin conversion adapter of the present invention.

[Explanation of symbols]

A 1st pin insertion hole B 2nd pin insertion hole C 3rd pin insertion hole D 2nd hole pin (power supply ground terminal) E 2nd hole pin (power supply connection terminal) 1 Board 2 Diode 3 Fuse 4 2 pin Rear case 5 3-pin front case 6 Capacitor 7 Resistor 8 Capacitor 9 Buzzer 10 Neon lamp 11 Resistor 12 Display touch sheet 13 Power / ground wire display lamp hole

Claims (4)

[Scope of utility model registration request] 1. A leakage warning device comprising a 3-pin to 2-pin conversion adapter, which is a substrate, and has a third pin insertion hole, a diode, a fuse,
Two second hole pins, two resistors, two capacitors,
One buzzer, indicator lamp, first pin insertion hole and second
The above board having a pin insertion hole and a 3-pin front case are provided, and the first pin insertion hole and the second pin are formed on the front wall.
The three-pin front case, which is provided with through holes corresponding to the pin insertion hole and the third pin insertion hole, and the two-pin rear case, which is provided with two through holes corresponding to the second hole pin. A pin rear case, one of the two second hole pins is a power source grounding terminal, the other is a power source connecting terminal, and the diode, the fuse, and the power source grounding terminals of the two second hole pins are provided. The third pin insertion hole forms a ground, and the combination of the diode and one of the two capacitors and one of the two resistors supplies power for the buzzer to generate a warning sound. When the 3-pin plug is inserted into the first pin insertion hole, the second pin insertion hole, and the third pin insertion hole from the front wall of the 3-pin front case and the two second hole pins are inserted into the outlet, the metal of the electrical appliance is Leakage of seat plate or case and A leakage warning device having a 3-pin to 2-pin conversion adapter, characterized in that it is formed so as to generate a warning sound when the sensitive current of the appliance is removed and the leakage of the appliance exceeds a certain current. . 2. The earth leakage warning device comprising the 3-pin to 2-pin conversion adapter according to claim 1, wherein one of the two resistors and an indicator lamp are combined to indicate a power source connecting line / ground line of the power source. 3 pin-2 characterized by performing
Leakage warning device with pin conversion adapter. 3. The earth leakage warning device comprising the 3-pin-2 pin conversion adapter according to claim 1, wherein the indicator lamp is a neon lamp. Leakage warning device. 4. The earth leakage warning device comprising the 3-pin to 2-pin conversion adapter according to claim 1, wherein the second hole pin is a plug connected to the power supply line.
Leakage warning device with pin to pin conversion adapter.