CN201094174Y

CN201094174Y - Power supply device eliminating electrical equipment electromagnetic radiation

Info

Publication number: CN201094174Y
Application number: CNU2007200937607U
Authority: CN
Inventors: 王凤山
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-17
Filing date: 2007-05-17
Publication date: 2008-07-30
Anticipated expiration: 2017-05-17

Abstract

The utility model discloses a power supply circuit device, more particularly relates to a power supply device which can eliminate electromagnetic radiation of electric appliances. The power supply circuit device comprises a power supply input wire, a power supply output wire, a circuit board, electronic elements, a box body, etc., wherein, the circuit board and the electronic elements are arranged in the box body. A circuit has the working principle that the live wire and the zero line of the power supply can be identified rapidly by the circuit, the zero line is used for contacting with the groundwire of a computer to ensure the normal work of the electromagnetic shield of the computer. Simultaneously, the circuit of the utility model has the function of overvoltage protection, effectively prevents the overvoltage from damaging computers, farthest eliminates the radiation generated by consumers, thereby ensuring the health of the user using the electrical appliance. The power supply circuit device has simple structure, easy manufacture, small volume, low cost and convenient use, and is convenient for popularization.

Description

A kind of supply unit of eliminating the electric equipment electromagnetic radiation

Technical field

The utility model relates to a kind of power circuit device, and more particularly, it is a kind of supply unit of eliminating the electric equipment electromagnetic radiation.

Background technology

As everyone knows, every have the place of alternating current all radiation can be arranged, when increasing electric equipment was come into people's life, the electromagnetic radiation of excess is also with regard to the increasing physical and mental health that jeopardizes people, and was especially even more serious to the harm of the responsive organ of women, children and property.In order to address these problems, the beginning of this century, a plurality of manufacturers development and production successively on Taiwan and interior ground have gone out the multiple product that is used to eliminate the computer electromagnetic radiation.The operation principle of these products can be divided into two classes substantially, a kind of be based on the product of interception electromagnetic radiation as: radiation-proof eyesight-protecting screen, protective garment etc., another kind are initiatively to dredge the 3rd utmost point earth connection of power consumption equipment.Though these products are of a great variety, principle differs, and cuts both ways, and also really positive effect has been played in radiation proof and elimination radiation. these products still exist and use inconvenience (protective garment), are subjected to power utilization environment to influence the bigger deficiency that waits.Up to the present, do not find as yet by design power input line, electronic circuit, product casing, power supply output line, make the ground connection that power supply output line can be good, reach the purpose of dredging, can form new electronic shield environment again, eliminate the radiation that power consumption equipment produces to greatest extent, thereby guarantee healthy a kind of supply unit of eliminating the electric equipment electromagnetic radiation of electrical equipment user.

Summary of the invention

The purpose of this utility model is to overcome deficiency of the prior art, a kind of processing and manufacturing simple in structure, easy is provided, makes the ground connection that power supply output line can be good, reach and dredge purpose, can form new electronic shield environment again, eliminate the radiation that power consumption equipment produces to greatest extent, thereby guarantee healthy a kind of supply unit of eliminating the electric equipment electromagnetic radiation of electrical equipment user.

The purpose of this utility model is achieved in that it comprises power input line, power supply output line, circuit board, electronic component, casing compositions such as (shell bodies).On the live wire of power input line or power supply output line and zero line, be connected respectively by neon bulb N1 and resistance R 4, static contact M1 and neon bulb N2 and resistance R 7, the branch branch road of static contact M2 series connection, this live wire, zero line has been placed by capacitor C 2 and K switch B2 respectively and between the E end, resistance R 3 and capacitor C 1 and K switch A2,2 liang of series branch's circuit of resistance R, corresponding neon bulb N1, N2 is placed with phototriode U1, U2 respectively with resistance R 5, R6 is connected on the DC power supply, and in phototriode U1 and resistance R 5, be connected compound transistor BG1 respectively on two series connection nodes of phototriode U2 and resistance R 6, BG2, also at compound transistor BG1, establish relay J KA between the collector electrode positive supply of BG2, JKB and with compound transistor BG1, the grounded emitter of BG2, capacitor C 3 and K switch A1 between positive-negative power, have also been placed, capacitor C 4 and K switch B1 two series branch roads, simultaneously, compound transistor BG1 just, the collector electrode of BG2 is connected to capacitor C 3 and K switch A1, capacitor C 4 with the series connection node of K switch B1 on.Between the live wire of described power input line or power supply output line and zero line, also be provided with the circuit that piezo-resistance RY and indicator light are connected with resistance R 1.

The operation principle of circuit is that this circuit can be discerned the live wire and the zero line of power supply rapidly, and its zero line is contacted with the ground wire of computer.Guarantee the electromagnetic shielding operate as normal of computer, eliminate radiation, this circuit also has over-voltage protecting function simultaneously, prevents overtension infringement computer.

The beneficial effect that the utility model has really is: (1) safely, reliably works reflection rapidly, and moment is discerned live wire and zero line, guarantees that circuit is normal; (2) can eliminate the radiation that power consumption equipment produces to greatest extent, thereby assurance electrical equipment user's is healthy; (3) circuit of the present utility model also has over-voltage protecting function, effectively prevents overtension infringement computer; (4) simple in structure, easy processing and manufacturing; (5) volume is little, and cost is low, easy to use, is convenient to popularize and popularization.

Description of drawings

Fig. 1 is the utility model circuit theory diagrams;

Fig. 2 is the body structure schematic diagram.

In Fig. 1, be made up of following electronic component: neon bulb N1, N2, phototriode U1, U2, compound transistor BG1, BG2, static contact M1, M2, relay J KA, JKB, resistance R 1-R7, capacitor C 1-C6, light-emitting diode D1, diode D2-D5, piezo-resistance RY, transformer B1, KB1, KB2, KA1, KB1 are switch.

In Fig. 2, casing 1, case lid 2, indicator light 3, power input line 4, power supply output line 5, mains switch 6, power supply are introduced hole 7, power supply fairlead 8.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Described circuit board, electronic component are opened case lid 2 and are placed in the casing 1, and power input line 4, power supply output line 5 are introduced hole 7, power supply fairlead 8 with power supply respectively, introduce, draw.The operation principle of circuit: behind this device place in circuit, L (N) inserts the 220V alternating current, turn on the power switch 6, indicator light 3 indication just can be worked, and wherein one end is arranged is live wire for L or N, the other end is a zero line, the E end links to each other with the ground wire (outer cover metal screen) of computer by power supply output line, when the L end is live wire, when the N end is ground wire, by starting static contact M1, M2 (M1, M2 designs for one), N1 is by resistance R 4 and the L live wire neon bulb N1 that joins, N2 is inducing luminous, N2 and zero line join, and neon bulb is not luminous, at this moment, U1 is subjected to photoconduction logical, base stage BG1 current potential raises, BG1 conducting work, relay J KA action, KA1, the KA2 adhesive, J KA self-locking after the KA1 adhesive, the KA2 adhesive is passed through C1 with zero line and ground wire, the ground wire that makes computer links to each other with the zero line of power supply thereby R2 joins, and reaches shield effectiveness.And that N2 and zero line join is not luminous, the U2 no change, and BG2, JKB do not work.After the JKA self-locking, the circuit continuous firing has only powered-down could remove self-locking, returns to reset condition.

When N was zero line for live wire L, by starting static contact M1, M2, neon bulb N2 was inducing luminous, and N1 and zero line join then not luminous.U2 is subjected to conducting behind the light, BG2 work, relay J KB action, KB1, KB2 adhesive, self-locking after the KB1 adhesive, KB2 adhesive.Zero line L and ground wire E are joined by C2, R3, make the screen proper grounding of computer and operate as normal.

Among the figure in 1 RY be piezo-resistance, be over-pressure safety device.

D1 is a light-emitting diode, is the work indication.

B2 is the 12V transformer, and D2-D5, C5 form current rectifying and wave filtering circuit, for circuit provides operating voltage.

This new device characteristics: simple in structure, work reflection rapidly, moment identification live wire with Zero line is guaranteed the circuit normal operation, eliminates to greatest extent electromagnetic radiation.

Claims

1. supply unit of eliminating the electric equipment electromagnetic radiation, it comprises casing (1), case lid (2), indicator light (3), power input line (4), power supply output line (5), mains switch (6), power supply is introduced hole (7), power supply fairlead (8), circuit board, electronic component, DC power supply, it is characterized in that: on the live wire of power input line (4) or power supply output line (5) and zero line, be connected respectively by neon bulb (N1) and resistance (R4), static contact (M1) and neon bulb (N2) and resistance (R7), the branch branch road of static contact (M2) series connection, this live wire, zero line has been placed by electric capacity (C2) and switch (KB2) respectively and between the E end, resistance (R3) and electric capacity (C1) and switch (KA2), resistance (R2) two series branch's circuit, corresponding neon bulb (N1, N2) be placed with phototriode (U1, U2) respectively with resistance (R5, R6) be connected on the DC power supply, and at phototriode (U1) and resistance (R5), be connected compound transistor (BG1 respectively on two series connection nodes of phototriode (U2) and resistance (R6), BG2), also at compound transistor (BG1, BG2) establish relay (JKA between the collector electrode positive supply, JKB) and with compound transistor (BG1, BG2) grounded emitter, electric capacity (C3) and switch (KA1) between positive-negative power, have also been placed, electric capacity (C4) and switch (KB1) two series branch roads, simultaneously, compound transistor (BG1 just, BG2) collector electrode is connected to electric capacity (C3) and switch (KA1), electric capacity (C4) with the series connection node of switch (KB1) on.

2. a kind of supply unit of eliminating the electric equipment electromagnetic radiation according to claim 1 is characterized in that: also be provided with the circuit that piezo-resistance (RY) and indicator light (3) are connected with resistance (R1) between the live wire of described power input line (4) or power supply output line (5) and zero line.