CN2376117Y - Long-life heavy current AC power supply filter overvoltage protector - Google Patents

Abstract

The utility model discloses a long-life heavy current AC power supply filter overvoltage protector, which is composed of a casing, a voltmeter V, a power supply switch K, a fuse FU, an energizing indicating lamp D, a standby socket CZ1, a multipurpose socket CZ2, an automatic electronic overvoltage protector ZB and an AC power supply filter purifier GH. One end of V and CZ1 is connected with the N end of a power supply live wire and the power switch K, and the other end is connected with the L end of a power supply zero wire and the other end of D, ZB and GH; one end of K is connected with the other end FU and D; the other end of FU is connected with ZB; the output end of GH is connected with CZ2. The utility model has the advantages of overvoltage protection, AC power supply purification and heavy operating current endurance.

Description

Long-life high-current ac power filtering overvoltage protector

The utility model relates to a kind of long-life high-current ac power filtering overvoltage protector that is used for the home audiovisual appliances power source, belongs to household electrical appliance apparatus for protecting power supply field.

At present; the various overvoltage apparatus for protecting power supply that are used for home audiovisual equipment in the prior art; ubiquity the shortcoming that simple function is only arranged; and these apparatus for protecting power supply too small shortcoming of operating current of also existing complex structure, can bearing; in use; be easy to because the big current work of electricity consumption stereo set damages it, therefore, its life-span is all shorter.

The purpose of this utility model is: provide a kind of and not only have over-voltage protecting function, can purify the AC power function but also have, and can bear the long-life high-current ac power filtering overvoltage protector of big operating current.

The utility model is to constitute like this: it is by shell (1), voltmeter V, mains switch K, fuse FU, electromotion pilot lamp D, standby socket CZ1, multipurpose socket CZ2, autoelectrinic overvoltage protector ZB, AC power filtering clarifier GH forms, voltmeter V, mains switch K, fuse FU, electromotion pilot lamp D is installed on the shell (1), voltmeter V is in parallel with CZ1, and termination power live wire N end and mains switch K, another termination zero-power line end L and D, the end of ZB and GH, another termination FU of K and the other end of D, the contact J-1 of the power firestreak input of another termination ZB of FU and the relay J of ZB, the power firestreak input of another termination GH of contact J-1, the output of GH is connected with CZ2; Be connected in series with sensitive switch WK and illuminating lamp MD at standby socket CZ1 two ends, use when this is convenient to operate household electrical appliance; Autoelectrinic overvoltage protector ZB is by resistance R 1～R9, capacitor C 1～C6, bridge rectifier D Z, diode D1～D5, voltage-stabiliser tube CW1 and CW2, relay J, controllable silicon KG forms, wherein D2 and D4 are light-emitting diode, anodal and the power firestreak end of the contact J-1 one termination D1 of J, the normally closed termination output of J-1, the Chang Kaiduan of J-1 passes through R1, C1 connects the DZ input, the cathode output end of DZ meets R2, positive pole and the D3 of another termination D2 of R2, D5 negative pole and J and R9 one end, another termination R7 of D5 positive pole and R9, C5, the negative pole of C6 and CW2, the positive pole of CW2 connects the D4 positive pole, the D4 negative pole, the negative pole of C2～C6, R5, the end of R6 and the negative pole of KG all connect the cathode output end of DZ, the D2 negative pole connects R8 one end, another termination of R8 D3, the positive pole of KG and the other end of J, the control utmost point of KG meets CW1, C3, the end of the positive pole of C4 and R6, the negative pole of CW1 meets C2 positive pole and R4, R5 one end, the negative pole of D1 meets R7 and R3, another termination of R3 R4, another input termination zero-power line and output of DZ; AC power filtering clarifier GH is made up of resistance R 10～R13, capacitor C 7～C11, inductance L 1, L2, the two ends of R10～R12 and C7, C8 connect the live wire of input power supply and the end of zero line and L1 and L2 respectively, R13 and C9, the C10 one termination L1 other end are output also, the other end of R13 and C9 and the C11 one termination L2 other end are another output also, C10 and C11 series connection, its tie point ground connection, this earth point also are connected with the earth terminal of multipurpose socket CZ2.

Owing to adopted technique scheme; the utility model compared with prior art; not only has over-voltage protecting function; but also has the function that can purify AC power; and the utility model can bear bigger operating current; thereby have the long life-span, in addition the utility model also have simple in structure, draw materials conveniently, make advantages such as easy.During use; attaching plug of the present utility model is inserted on the AC power of 220V; the attaching plug of home audiovisual equipment is inserted on the multipurpose socket CZ2; K closes with mains switch; at this moment supply with home audiovisual equipment and be the alternating current after AC power filtering clarifier GH purifies; after the D1 halfwave rectifier of autoelectrinic overvoltage protector ZB, be sent to R7 and R3 without the alternating current that purifies simultaneously; D4 was luminous when the voltage of ordering as a rose to the voltage stabilizing value of CW2; circuit enters the protection readiness; R3; R4; R5 and C2 have constituted sample circuit; when the b point voltage owing to the rising of external voltage is risen; and during the protection value of surpass setting; CW1 moment soft breakdown, KG is triggered, and the J adhesive makes the J-1 action cut off out-put supply; D2 sends ruddiness; external power is through R1 simultaneously; C1 and DZ supply with relay J and keep inhaling and state current, and one tunnel process R9 is to C5; the C6 charging is prepared for the K that closes once more performs protection.Because by the electronic component of autoelectrinic overvoltage protector ZB, therefore, the utility model can not bear bigger operating current to operating current.

Accompanying drawing 1 is a schematic appearance of the present utility model;

Accompanying drawing 2 is circuit theory diagrams of the present utility model;

Accompanying drawing 3 is the circuit theory diagrams of autoelectrinic overvoltage protector ZB of the present utility model;

Accompanying drawing 4 is the circuit theory diagrams of the utility model AC power filtering clarifier GH.

Embodiment of the present utility model: shell (1) can adopt metal material or plastic material to make, voltmeter V, mains switch K, fuse FU, electromotion pilot lamp D, standby socket CZ1, the electronic component of multipurpose socket CZ2 and autoelectrinic overvoltage protector ZB and AC power filtering clarifier GH all adopts the finished product of selling on the market to assemble, when selecting electronic component, its requirement of withstand voltage is more than 250V, with voltmeter V, mains switch K, fuse FU, electromotion pilot lamp D is installed on the shell (1), and it is voltmeter V is in parallel with CZ1, and termination power live wire N end and mains switch K, another termination zero-power line end L and D, the end of ZB and GH, with another termination FU of K and the other end of D, the contact J-1 of the power firestreak input of another termination ZB of FU and the relay J of ZB, the power firestreak input of another termination GH of contact J-1, the output of GH is connected with CZ2; Sensitive switch WK and illuminating lamp MD on standby socket CZ1 two ends are connected in series, when this is convenient to operate household electrical appliance or maintenance use during electrical equipment; Autoelectrinic overvoltage protector ZB is by resistance R 1～R9, capacitor C 1～C6, bridge rectifier D Z, diode D1～D5, voltage-stabiliser tube CW1 and CW2, relay J, controllable silicon KG forms, wherein D2 and D4 are light-emitting diode, anodal and the power firestreak end with the contact J-1 one termination D1 of J, the normally closed termination output of J-1, the Chang Kaiduan of J-1 passes through R1, C1 connects the DZ input, the cathode output end of DZ meets R2, positive pole and the D3 of another termination D2 of R2, D5 negative pole and J and R9 one end, another termination R7 of D5 positive pole and R9, C5, the negative pole of C6 and CW2, the positive pole of CW2 connects the D4 positive pole, the D4 negative pole, the negative pole of C2～C6, R5, the end of R6 and the negative pole of KG all connect the cathode output end of DZ, the D2 negative pole connects R8 one end, another termination of R8 D3, the positive pole of KG and the other end of J, the control utmost point of KG meets CW1, C3, the end of the positive pole of C4 and R6, the negative pole of CW1 meets C2 positive pole and R4, R5 one end, the negative pole of D1 meets R7 and R3, another termination of R3 R4, another input termination zero-power line and output of DZ; AC power filtering clarifier GH is made up of resistance R 10～R13, capacitor C 7～C11, inductance L 1, L2, the two ends of R10～R12 and C7, C8 connect the live wire of input power supply and the end of zero line and L1 and L2 respectively, R13 and C9, the C10 one termination L1 other end and as the output that is connected with multipurpose socket CZ2, with the other end of R13 and C9 and the C11 one termination L2 other end and with it as another output that is connected with multipurpose socket CZ2, with C10 and C11 series connection, and its tie point ground connection, this earth point also are connected with the earth terminal of multipurpose socket CZ2.

Claims (4)

1; a kind of long-life high-current ac power filtering overvoltage protector; it is by shell (1); voltmeter V; mains switch K; fuse FU; electromotion pilot lamp D; standby socket CZ1; multipurpose socket CZ2; autoelectrinic overvoltage protector ZB; AC power filtering clarifier GH forms; voltmeter V; mains switch K; fuse FU; electromotion pilot lamp D is installed on the shell (1); it is characterized in that: voltmeter V is in parallel with CZ1; and termination power live wire N end and mains switch K; another termination zero-power line end L and D; the end of ZB and GH; another termination FU of K and the other end of D; the contact J-1 of the power firestreak input of another termination ZB of FU and the relay J of ZB; the power firestreak input of another termination GH of contact J-1, the output of GH is connected with CZ2.

2, long-life high-current ac power filtering overvoltage protector according to claim 1 is characterized in that: be connected in series with sensitive switch WK and illuminating lamp MD at standby socket CZ1 two ends.

3; long-life high-current ac power filtering overvoltage protector according to claim 1; it is characterized in that: autoelectrinic overvoltage protector ZB is by resistance R 1～R9; capacitor C 1～C6; bridge rectifier D Z; diode D1～D5; voltage-stabiliser tube CW1 and CW2; relay J; controllable silicon KG forms; wherein D2 and D4 are light-emitting diode; anodal and the power firestreak end of the contact J-1 one termination D1 of J; the normally closed termination output of J-1; the Chang Kaiduan of J-1 passes through R1; C1 connects the DZ input; the cathode output end of DZ meets R2; positive pole and the D3 of another termination D2 of R2; D5 negative pole and J and R9 one end; another termination R7 of D5 positive pole and R9; C5; the negative pole of C6 and CW2; the positive pole of CW2 connects the D4 positive pole; the D4 negative pole; the negative pole of C2～C6; R5; the end of R6 and the negative pole of KG all connect the cathode output end of DZ; the D2 negative pole connects R8 one end; another termination of R8 D3; the positive pole of KG and the other end of J; the control utmost point of KG meets CW1; C3; the end of the positive pole of C4 and R6; the negative pole of CW1 meets C2 positive pole and R4; R5 one end; the negative pole of D1 meets R7 and R3; another termination of R3 R4, another input termination zero-power line and output of DZ.

4; long-life high-current ac power filtering overvoltage protector according to claim 1; it is characterized in that: AC power filtering clarifier GH is by resistance R 10～R13; capacitor C 7～C11; inductance L 1; L2 forms; R10～R12 and C7; the two ends of C8 connect the live wire of input power supply and the end of zero line and L1 and L2 respectively; R13 and C9; the C10 one termination L1 other end is an output also; the other end of R13 and C9 and the C11 one termination L2 other end are another output also; C10 and C11 series connection; its tie point ground connection, this earth point also are connected with the earth terminal of multipurpose socket CZ2.

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