CN102313848A

CN102313848A - Overcurrent protector detection device

Info

Publication number: CN102313848A
Application number: CN201010213928XA
Authority: CN
Inventors: 于兴波
Original assignee: Shandong Xinjiaodian Longsheng Automobile Fittings Co Ltd
Current assignee: Shandong Xinjiaodian Longsheng Automobile Fittings Co Ltd
Priority date: 2010-06-30
Filing date: 2010-06-30
Publication date: 2012-01-11

Abstract

The invention discloses an overcurrent protector detection device, comprising an overcurrent protector circuit, wherein the circuit comprises an alternating-current wiring terminal, the alternating-current wiring terminal is connected with a power supply total toggle switch, a voltage regulator and a primary coil of a transformer in series in sequence, the secondary coil of the transformer is connected with a rectifier, the output end of the rectifier is connected with a direct-current voltmeter in parallel and is connected with an alternating-current contactor switch, a direct-current ampere meter, a test socket and an adjustable resistor in series in sequence, and a pedal switch is further connected between the alternating-current contactor switch and the power supply total toggle switch. Accordingly, the overcurrent protector detection device has he advantages of convenience for detection and low cost.

Description

The overcurrent protector pick-up unit

Technical field

The present invention relates to a kind of pick-up unit, particularly a kind of pick-up unit to overcurrent protector.

Background technology

In the existing technology, overcurrent protector belongs to the parts of outside buying, advances after the factory and can only could confirm whether the quality of overcurrent protector is qualified through range estimation surface or finished product assembling back through using.

And do not detect the device of the problem whether overcurrent protector exist, be difficult to judge whether overcurrent protector is qualified this moment.After appearance is defective, need the time cost of increase by 40% to reprocess replacing.

Summary of the invention

To the defective of above-mentioned prior art, the purpose of this invention is to provide a kind of overcurrent protector pick-up unit easy to detect, with low cost.

For achieving the above object, the present invention adopts following technical scheme:

A kind of overcurrent protector testing circuit; Comprise ac terminal; The said ac terminal power supply of connecting is successively stirred the primary coil of master switch, pressure regulator and transformer, and the secondary coil of said transformer connects rectifier, the output terminal parallel connection direct voltage table of said rectifier; And connect successively A.C. contactor switch, DC ammeter, test jack and adjustable resistance, said A.C. contactor switch and said power supply are stirred and also are connected with foot-switch between the master switch.

Overcurrent protector testing circuit of the present invention, wherein said rectifier also are connected with the time relay and the hummer of A.C. contactor switch and series connection.

Overcurrent protector testing circuit of the present invention also is in series with fuse between wherein said ac terminal and the said power supply toggle switch.

Overcurrent protector testing circuit of the present invention, wherein said adjustable resistance and said test jack two ends are provided with binding post respectively.

Overcurrent protector testing circuit of the present invention; Wherein said foot-switch comprises first foot-switch and second foot-switch; Said A.C. contactor switch comprises the first A.C. contactor switch and the second A.C. contactor switch; Said DC ammeter comprises first DC ammeter and second DC ammeter, and said test jack comprises first test jack and second test jack, and the said time relay comprises the very first time relay and second time relay; Said hummer comprises first hummer and second hummer, and said binding post comprises first binding post and second binding post.

Overcurrent protector testing circuit of the present invention; The wherein said first A.C. contactor switch comprises first normally closed switch, first contact-making switch, first auxiliary contact switch and first coil; The said second A.C. contactor switch comprises second normally closed switch, second contact-making switch, second auxiliary contact switch and second coil; The said first normally closed switch two ends connect the input end of said second foot-switch and said second coil respectively; The output terminal of said second coil connects the negative pole of said ac terminal; The said second normally closed switch two ends connect the input end of said first foot-switch and said first coil respectively; The output terminal of said first coil connects said ac terminal negative pole, and the said first contact-making switch two ends connect said rectifier and said first DC ammeter respectively, and the said second contact-making switch two ends connect said rectifier and said second DC ammeter respectively; The said first auxiliary contact switch two ends connect said very first time relay respectively, and the said first auxiliary contact switch two ends connect said second time relay respectively.

A kind of overcurrent protector pick-up unit that adopts above-mentioned overcurrent protector testing circuit; Comprise box body; It is inner that said overcurrent protector testing circuit is arranged on said box body; Said attaching plug is arranged on the back of said box body; Reometer dial plate and said test jack that said power supply is stirred the voltage table dial plate of master switch, said D.C. voltmeter, said DC ammeter are arranged on the front panel of said box body, and said foot-switch is arranged on the panel of said box body bottom, and the adjustment knob of said pressure regulator and said adjustable resistance all is arranged on the inside at the back of said box body.

Overcurrent protector pick-up unit of the present invention also is provided with the time relay on the front panel of wherein said box body.

Overcurrent protector pick-up unit of the present invention is provided with hummer on the side panel of wherein said box body.

Overcurrent protector pick-up unit of the present invention is provided with binding post on the front panel at wherein said box body middle part.

Overcurrent protector pick-up unit of the present invention, feasible convenient to the detection of overcurrent protector, and it is with low cost to make overcurrent protector pick-up unit of the present invention.

Description of drawings

Fig. 1 is the circuit theory diagrams of overcurrent protector pick-up unit of the present invention;

Fig. 2 is the shape assumption diagram of overcurrent protector pick-up unit of the present invention.

Embodiment

Be elaborated below in conjunction with the embodiment of accompanying drawing to overcurrent protector pick-up unit of the present invention.

Referring to Fig. 1; Overcurrent protector testing circuit of the present invention; Comprise ac terminal 1, connect successively fuse 2, power supply of ac terminal 1 stirred the primary coil of master switch 3, pressure regulator 4 and

transformer

5,2 and 1 end points of first relay 16 with after 2 and 1 end points of second relay 17 is parallelly connected with the parallel connection of primary windings of pressure regulator 4 and transformer 5; Be respectively first relay 16 and second relay 17 provides alternating current; The two ends of the secondary coil of transformer 5 connect the input end of rectifier 6 respectively, and the output terminal parallel connection direct voltage table table 7 of rectifier 6 connects first foot-switch 8 and second foot-switch 9 respectively after power supply is stirred master switch 3.

Be connected the first A.C. contactor switch 10 behind rectifier 6 and second foot-switch 9; Be connected the second A.C. contactor switch 11 behind rectifier 6 and first foot-switch 8; The first A.C. contactor switch 10 comprises the first normally closed switch 10a, the first contact-making switch 10b, the first auxiliary contact switch 10c and the first coil K1; The second A.C. contactor switch 11 comprises the second normally closed switch 11a, the second contact-making switch 11b, the second auxiliary contact switch 11c and the second coil K2, and the first A.C. contactor switch 10 and the second A.C. contactor switch 11 are the 40A A.C. contactor.

The first normally closed switch 10a two ends connect the input end of second foot-switch 9 and the second coil K2 respectively; The output terminal of the second coil K2 connects the negative pole of ac terminal 1; The second normally closed switch 11a two ends connect the input end of first foot-switch 8 and the first coil K1 respectively; The output terminal of the first coil K1 connects the negative pole of ac terminal 1; The output terminal of rectifier 6 connects the first contact-making switch 10b, first DC ammeter 14, first test jack 18 and the adjustable resistance 20 of series connection successively, the second contact-making switch 11b of series connection, second DC ammeter 15 and second test jack 19 and first contact-making switch of connecting, first DC ammeter 14, first test jack, 18 parallel connections.

First hummer 13 of the output terminal parallel connection series connection of

rectifier

6 and 4 and 3 end points and second hummer 12 of series connection and 4 and 3 end points of second relay 17 of first relay 16; Be that first relay 16 and second relay 17 provide direct current; First hummer 13 and second hummer 12 are 12V direct current hummer; 4 and 3 ports of first relay 16 are through connecting in 9 and 10 end points energising back a period of time, and 4 and 3 ports of second relay 17 are through connecting in 9 and 10 end points energising back a period of time.

The first auxiliary contact switch 10c two ends connect 9 and 10 end points of very first time relay 16 respectively, and the counting zero clearing of 9 and 10 end points energising back begins counting; After counting down to certain hour, connect 4 and 3 end points, the second auxiliary contact switch 11c two ends connect 9 and 10 end points of second time relay 17 respectively; The counting zero clearing of 9 and 10 end points energising back; Begin counting, count down to certain hour after, connect 4 and 3 end points.

First test jack

18 and 21, the second test jacks 19 and also parallelly connected second binding post 22 of adjustable resistance 20 of also parallelly connected first binding post of adjustable resistance 20.

In conjunction with Fig. 2; The overcurrent protector testing circuit is arranged in the box body 23 of overcurrent protector pick-up unit of the present invention; Attaching plug 1a is arranged on the back of box body 23; Power supply is stirred the second DC ammeter dial plate 15a, first test jack 18, second test jack 19, first binding post 21, second binding post 22 and the time switch 16a of very first time relay of the first DC ammeter dial plate 14a, second DC ammeter 15 of voltage table dial plate 7a, first DC ammeter 14 of master switch 3, D.C. voltmeter 7 and the time switch 17a of second time relay is installed on the front panel of box body 23; First hummer 13 and second hummer 12 are installed in respectively on the side panel of both sides of box body 23; First foot-switch 8 and second foot-switch 9 are installed on the panel of box body 23 bottoms, and wherein the adjustment knob of pressure regulator 4 and adjustable resistance 20 is installed in the inside at box body 23 rear portions.

Before detecting overcurrent protector, energized 1, closed power supply is stirred master switch 2; Supply power; After power supply 1 was connected, people of staff opened the backboard of box body 23, the adjustment knob of adjustment pressure regulator 4; Another staff observes the registration of D.C. voltmeter 7, and order reaches the required voltage value through the galvanic voltage that behind the rectifier 6 alternating current is become.

When detecting each different overcurrent protector; Overcurrent protector to be tested is inserted in first test jack 18 or second test jack 19; One of them staff steps on first foot-switch 8 or second foot-switch 9; The first contact-making switch 10b of the first A.C. contactor switch 10 or the second A.C. contactor switch 11 and the first auxiliary contact switch 10c adhesive or the second contact-making switch 11b and the second auxiliary contact switch 11c adhesive; Another staff opens the backboard of box body 23; Adjustment adjustable resistance 20 is stepped on the registration that the staff of first foot-switch 8 or second foot-switch 9 observes first DC ammeter 14 or second DC ammeter 15, electric current is adjusted to the required value of overcurrent protector to be detected.

After treating that above-mentioned steps is accomplished; Overcurrent protector to be tested is inserted in first test jack 18 or second test jack 19, step on first foot-switch 8 or second foot-switch 9, make the first A.C. contactor switch 10 or 11 adhesives of the second A.C. contactor switch; The very first time relay 16 or second time relay 17 pick up counting; The model of the time relay is ZS14S, can behind certain hour, connect 4 and 3 end points, and first hummer 13 or second hummer 12 take place.

If overcurrent protector action outage in official hour, promptly the registration of first DC ammeter 14 or second DC ammeter 15 is that 0, the first hummer 13 or second hummer 12 do not take place, and proves that then overcurrent protector is qualified; If surpass official hour, overcurrent protector is outage not, and the registration of first DC ammeter 14 or second DC ammeter 15 is constant, and first hummer 13 or second hummer 12 are reported to the police automatically, and prove that overcurrent protector is defective this moment.

Owing to first binding post 21 is set at adjustable resistance 20 and first test jack, 18 two ends; At adjustable resistance 20 and second test jack, 19 two ends second binding post 22 is set; A direct supply can be provided, and this direct supply generally can offer the equipment of the quality of test air pump.

Above embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.

Claims

1. overcurrent protector testing circuit; Comprise ac terminal (1); It is characterized in that; Said ac terminal (1) power supply of connecting is successively stirred the primary coil of master switch (3), pressure regulator (4) and transformer (5), and the secondary coil of said transformer (5) connects rectifier (6), the output terminal parallel connection direct voltage table (7) of said rectifier (6); And connect successively A.C. contactor switch, DC ammeter, test jack and adjustable resistance (20), said A.C. contactor switch and said power supply are stirred between the master switch (3) and also are connected with foot-switch.

2. overcurrent protector testing circuit according to claim 1 is characterized in that, said rectifier (6) also is connected with the time relay and the hummer of A.C. contactor switch and series connection.

3. overcurrent protector testing circuit according to claim 2 is characterized in that, also is in series with fuse (2) between said ac terminal (1) and the said power supply toggle switch (3).

4. overcurrent protector testing circuit according to claim 3 is characterized in that, said adjustable resistance (20) and said test jack two ends are provided with binding post respectively.

5. overcurrent protector testing circuit according to claim 3; It is characterized in that; Said foot-switch comprises first foot-switch (8) and second foot-switch (9); Said A.C. contactor switch comprises the first A.C. contactor switch (10) and the second A.C. contactor switch (11); Said DC ammeter comprises first DC ammeter (14) and second DC ammeter (15), and said test jack comprises first test jack (18) and second test jack (19), and the said time relay comprises the very first time relay (16) and second time relay (17); Said hummer comprises first hummer (13) and second hummer (12), and said binding post comprises first binding post (21) and second binding post (22).

6. overcurrent protector testing circuit according to claim 5; It is characterized in that; The said first A.C. contactor switch (10) comprises first normally closed switch (10a), first contact-making switch (10b), first auxiliary contact switch (10c) and first coil (K1); The said second A.C. contactor switch (11) comprises second normally closed switch (11a), second contact-making switch (11b), second auxiliary contact switch (11c) and second coil (K2); Said first normally closed switch (10a) two ends connect the input end of said second foot-switch (9) and said second coil (K2) respectively; The output terminal of said second coil (K2) connects the negative pole of said ac terminal (1); Said second normally closed switch (11a) two ends connect the input end of said first foot-switch (8) and said first coil (K1) respectively; The output terminal of said first coil (K1) connects said ac terminal (1) negative pole, and said first contact-making switch (10b) two ends connect said rectifier (6) and said first DC ammeter (14) respectively, and said second contact-making switch (11b) two ends connect said rectifier (6) and said second DC ammeter (15) respectively; Said first auxiliary contact switch (10c) two ends connect said very first time relay (16) respectively, and said first auxiliary contact switch (11c) two ends connect said second time relay (17) respectively.

7. overcurrent protector pick-up unit that adopts the described overcurrent protector testing circuit of claim 1-6; Comprise box body (23); It is characterized in that; Said overcurrent protector testing circuit is arranged on said box body (23) inside; Said attaching plug (1a) is arranged on the back of said box body (23); Reometer dial plate and said test jack that said power supply is stirred master switch (3), the voltage table dial plate (7a) of said D.C. voltmeter (7), said DC ammeter are arranged on the front panel of said box body (23), and said foot-switch is arranged on the panel of said box body (23) bottom, and the adjustment knob of said pressure regulator (4) and said adjustable resistance (20) all is arranged on the inside at the back of said box body (23).

8. overcurrent protector pick-up unit according to claim 7 is characterized in that, on the front panel of said box body (23) time relay is set also.

9. overcurrent protector pick-up unit according to claim 8 is characterized in that, on the side panel of said box body (23) hummer is set.

10. overcurrent protector pick-up unit according to claim 9 is characterized in that, on the front panel at said box body (23) middle part binding post is set.