CN2444704Y - Automatic energy-saving device for AC welder - Google Patents
Automatic energy-saving device for AC welder Download PDFInfo
- Publication number
- CN2444704Y CN2444704Y CN 00221546 CN00221546U CN2444704Y CN 2444704 Y CN2444704 Y CN 2444704Y CN 00221546 CN00221546 CN 00221546 CN 00221546 U CN00221546 U CN 00221546U CN 2444704 Y CN2444704 Y CN 2444704Y
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- Prior art keywords
- relay
- contactor
- coil
- normally
- welder
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Abstract
The utility model relates to an automatic energy-saving device for an AC electric welder. A main contact of an AC contactor is serially connected with a power cord of the electric welder. The on-off of a coil of the AC contactor is controlled by a time relay which is controlled by the auxiliary polygonal voltage of the electric welder. Thus, the electric welder is ensured to be stopped, when loss time is overlong. Therefore, the problem of energy consumption due to the long time zero load of the electric welder is effectively solved. The utility model has the advantages of simple circuits, reliable operation obvious energy-saving effect and wide applicable models.
Description
The utility model relates to a kind of A.C. welder automatic energy-saving device.
In the prior art, that A.C. welder has is simple in structure, service life is long, the starting the arc rapidly, micro breaks do not have advantage such as influence and widely uses, but all exists the problem of unloaded power consumption.Because no-load current is bigger during electric welder no-load, is generally 6～12 amperes, and because the operative employee need change welding rod frequently when welding, also need carries workpiece sometimes, proofread and correct size etc., idle time is long and inevitable, so waste of energy is serious during zero load.Lack the technology that can reduce the electric welder no-load energy consumption and not influence the electric welding machine original function in the prior art.
The utility model aims to provide a kind of A.C. welder automatic energy-saving device that can reduce no-load power consumption.
The utility model significantly reduces no-load power consumption by realizing unloaded back electric welding machine automatic stop of electric welding machine long-time (surpass and change the welding rod required time under the normal condition) or no-load current.
The simplest technical solution that realizes this design is exactly: be serially connected with the main contact of an A.C. contactor on the power line of electric welding machine, the coil of this A.C. contactor be connected in series formation loop afterwards with microswitch on being installed on soldering turret.When electric welding machine needs long-time no-load automatic stop, get final product the power supply of hand off electric welding machine, thereby avoid the long-time unloaded power consumption of electric welding machine by microswitch.This scheme circuit is simple, with low cost, effect is obvious, but needs special-purpose leading line and soldering turret, and range of application is little.
Technical solution of the present utility model is as follows:
The utility model comprises housing, is installed on A.C. contactor CJ, two AC relay ZJ in the housing
1, ZJ
2, a time relay sj and a tunable capacitor C, wherein: ZJ
1Rated voltage greater than arcing voltage, and make voltage difference between soldering turret and workpiece, ZJ more than or equal to arcing voltage
2Rated voltage when welding greater than electric welding machine the secondary output voltage and secondary output voltage during less than electric welder no-load, the main contact of described A.C. contactor CJ is a normally opened contact, it be serially connected with on the power line of electric welding machine after tunable capacitor C is in parallel; The coil of described A.C. contactor CJ and AC relay ZJ
1The coil tandem AC relay ZJ of normally-closed contact serial connection back and time relay sj
2Normally opened contact be in parallel, connecting and be connected on the power supply two-phase with time relay normally-closed contact again constitutes the loop; Described AC relay ZJ
1Coil be connected in series with the normally closed interlock of A.C. contactor CJ the back with AC relay ZJ
2The normally open contact of coil tandem A.C. contactor CJ after be in parallel, the two ends that are connected in the electric welding machine secondary coil constitute the loop.
Accompanying drawing 1 is a circuit diagram of the present utility model.
Referring to accompanying drawing 1, the operation principle of the present utility model and the course of work are as follows:
After electric welding machine is connected power supply, moment the transformer secondary induce a low-voltage immediately, relay ZJ
1With contactor CJ almost simultaneously electric because relay ZJ
1Comparatively sensitive, ZJ
1At first adhesive, the normally-closed contact that itself and CJ coil are in series disconnects, thereby the CJ wire loop is cut off, and the CJ normally-closed contact that is serially connected with on the welder power line disconnects, and this moment, electric welding machine was in holding state.
When needs weld, need only welding rod and workpiece are collided, at this moment relay ZJ
1In this dead electricity in a flash, its normally-closed contact closure, contactor CJ coil gets electric, and its main contact is connected, electric welding machine primary side connected to the power, but operate as normal.This moment ZJ
1Owing to disconnecting, the CJ normally-closed contact that is in series with it quits work.
Because relay ZJ
2The secondary voltage of rated voltage when welding greater than electric welding machine, (during welding) ZJ at this moment
2Though connect power supply through the CJ normally open contact, can not adhesive, time relay sj is because of series connection ZJ
2Normally opened contact and can not work, welding job goes on always.
When electric welder no-load, promptly electric welding machine is connected power supply and when not welding, this moment, the electric welding machine secondary voltage was greater than relay ZJ
2Pick-up voltage, this moment ZJ
2Start working, its normally opened contact closure, time relay sj gets electric work, and pick up counting, the delay time of setting greater than this time relay when the electric welder no-load time (be slightly larger than the welder changes the welding rod required time under the normal condition), the normally-closed contact of the time relay disconnects, and the wire loop of A.C. contactor CJ coil and time relay all is cut off.Electric welding machine is realized long-time unloaded back automatic stop, enters holding state.This moment, the CJ main contacts was in normally open.
Weld once more, to repeat said process.
Above-mentioned tunable capacitor is used to regulate the secondary voltage of electric welding machine, has guaranteed that the starting the arc is rapid.
The utility model has guaranteed that the electric welding machine micro breaks do not have influence, has realized the long-time no-load automatic stop of electric welding machine simultaneously, greatly reduces no-load power consumption.Simple in structure, with low cost.
Further technical scheme is:
Also has an adjustable resistance R
1C1 is in parallel with tunable capacitor;
Also has an adjustable resistance R
2With relay ZJ
1Coil series connection;
Also has an adjustable resistance R
3With relay ZJ
2Coil series connection;
Indicator lamp XD
1, XD
2Connect with normally closed, the normally open contact of contactor CJ respectively.
Each above-mentioned adjustable resistance mainly is convenient the adjusting, makes each components and parts guaranteeing to work in optimum state under its normal function prerequisite, simultaneously, also makes applicability of the present utility model greatly improve, and can be widely used on the electric welding machine of multiple different model.The access of indicator lamp makes duty clear.
Further technical solution is again:
The described time relay is the gasbag-type time relay.
Because voltage changes with duty in the utility model circuit, the time relay of other form is all not too suitable, particularly transistor time relay.
Below with reference to drawings and Examples the utility model is done further narration.
Accompanying drawing 2 is the circuit diagram of the utility model embodiment.
Referring to accompanying drawing 2, A.C. contactor CJ, the JZX series that the utility model embodiment comprises housing, is installed on the interior model of housing is CJ10-10 exchanges ZJ of 12V relay
1, exchange ZJ of 24V relay
2, a model be JS7-2ATH gasbag-type time relay sj and tunable capacitor C, adjustable resistance R
1, R
2, R
3, red, the green indicator lamp XD of 380VAD11 type
1, XD
2, the main contact of described A.C. contactor CJ is a normally opened contact, it and tunable capacitor C, adjustable resistance R
1Be serially connected with after the parallel connection on the power line of electric welding machine: the coil of described A.C. contactor CJ and AC relay ZJ
1Normally-closed contact serial connection, the coil and the AC relay ZJ of time relay sj
2Normally opened contact serial connection, indicator lamp XD
1Be connected in series with the normally-closed contact of CJ, indicator lamp XD
2Be connected in series with the normally opened contact of CJ, connecting and be connected on the power supply two-phase with time relay normally-closed contact again after above-mentioned four tunnel parallel connections constitutes the loop; Described AC relay ZJ
1Coil and adjustable resistance R
2, A.C. contactor CJ normally closed interlock serial connection, AC relay ZJ
2Coil and adjustable resistance R
3, A.C. contactor CJ normally open contact serial connection, be connected in after the above-mentioned two-way parallel connection on the two ends of electric welding machine secondary coil and constitute the loop; After electric welding machine closed a switch K, transformer secondary moment induced a low-voltage, relay ZJ immediately
1At first the normally-closed contact that is in series of itself and CJ coil of adhesive disconnects, thereby the CJ wire loop is cut off, and the CJ main contacts disconnects, and electric welding machine is elementary can not connect power supply.This moment red indicator lamp XD
1Bright, electric welding machine is in electricity-saving state; When needs weld, need only welding rod and workpiece are collided, at this moment relay ZJ
1In this dead electricity in a flash, its normally-closed contact closure, contactor CJ coil gets electric, and its main contact is connected, green finger lamp XD
2Bright.Electric welding machine primary side connected to the power, but electric welding machine operate as normal.This moment ZJ
2Can not adhesive though connect power supply, time relay sj is because of series connection ZJ
2Normally opened contact and can not work, welding job goes on always; When electric welding machine stopped to weld, its secondary voltage was greater than relay ZJ
2Pick-up voltage, this moment ZJ
2Start working, its normally opened contact closure, time relay sj gets electric work, SJ picks up counting, the delay time of setting greater than this time relay when the electric welder no-load time, the normally-closed contact of the time relay disconnects, and the wire loop of A.C. contactor CJ coil and time relay all is cut off.Red indicator lamp XD
1Bright.This moment, the CJ main contacts was in normally open.Electric welding machine enters electricity-saving state.
Use present embodiment, after the long-time zero load of electric welding machine, empty worker's electric current is reduced to 980mA by 8.9A, and power saving rate is 99.87%, and effect is obvious.
It is pointed out that the utility model has the embodiment of various ways.According to the main contact of the utility model by series connection one A.C. contactor on the welder power line, the break-make of the coil of this A.C. contactor is subjected to the time relay of electric welding machine secondary voltage control to control such invention thinking by one, those of ordinary skills need not make creative work and can make, and have not just given unnecessary details one by one here.
Claims (6)
1, a kind of A.C. welder automatic energy-saving device comprises housing, is installed on A.C. contactor CJ, two AC relay ZJ in the housing
1, ZJ
2, a time relay sj and a tunable capacitor C, wherein, ZJ
1Rated voltage greater than arcing voltage and make voltage difference between soldering turret and workpiece more than or equal to arcing voltage, ZJ
2Rated voltage when welding greater than electric welding machine the secondary output voltage and secondary output voltage during less than electric welder no-load, the main contact of described A.C. contactor CJ is a normally opened contact, it be serially connected with on the power line of electric welding machine after tunable capacitor C is in parallel; The coil of described A.C. contactor CJ and AC relay ZJ
1The coil tandem AC relay ZJ of normally-closed contact serial connection back and time relay sj
2Normally opened contact after be in parallel, be connected in series on the power supply two-phase with time relay normally-closed contact again and constitute the loop; Described AC relay ZJ
1Coil be connected in series with the normally closed interlock of A.C. contactor CJ the back with AC relay ZJ
2Coil be in parallel after the normally open contact of A.C. contactor CJ is connected in series, be connected on the two ends of electric welding machine secondary coil and constitute the loop.
2, A.C. welder automatic energy-saving device according to claim 1 is characterized in that: a described adjustable resistance R in addition
1With tunable capacitor C
1In parallel.
3, according to claim 1 or 2 arbitrary described A.C. welder automatic energy-saving devices, it is characterized in that: also have an adjustable resistance R
2With relay ZJ
1Coil series connection.
4, according to claim 1 or 2 arbitrary described A.C. welder automatic energy-saving devices, it is characterized in that: also have an adjustable resistance R
3With relay ZJ
2Coil series connection.
5, according to claim 1 or 2 arbitrary described A.C. welder automatic energy-saving devices, it is characterized in that: indicator lamp XD
1, XD
2Connect with normally closed, the normally open contact of contactor CJ respectively.
6, according to claims 1 or 2 arbitrary described A.C. welder automatic energy-saving devices, it is characterized in that: the described time relay is the gasbag-type time relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00221546 CN2444704Y (en) | 2000-08-23 | 2000-08-23 | Automatic energy-saving device for AC welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00221546 CN2444704Y (en) | 2000-08-23 | 2000-08-23 | Automatic energy-saving device for AC welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2444704Y true CN2444704Y (en) | 2001-08-29 |
Family
ID=33586422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00221546 Expired - Fee Related CN2444704Y (en) | 2000-08-23 | 2000-08-23 | Automatic energy-saving device for AC welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2444704Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928753A (en) * | 2012-11-12 | 2013-02-13 | 小原(南京)机电有限公司 | Inverter welding machine middle frequency insulation detection device |
-
2000
- 2000-08-23 CN CN 00221546 patent/CN2444704Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928753A (en) * | 2012-11-12 | 2013-02-13 | 小原(南京)机电有限公司 | Inverter welding machine middle frequency insulation detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |