CN206169458U - Electric welding is with unloaded energy -conserving circuit based on full wave rectification design - Google Patents
Electric welding is with unloaded energy -conserving circuit based on full wave rectification design Download PDFInfo
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- CN206169458U CN206169458U CN201621261437.1U CN201621261437U CN206169458U CN 206169458 U CN206169458 U CN 206169458U CN 201621261437 U CN201621261437 U CN 201621261437U CN 206169458 U CN206169458 U CN 206169458U
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Abstract
The utility model discloses an electric welding is with unloaded energy -conserving circuit based on full wave rectification design, including power transformer T1, ac contactor KM, relay K, DC power supply circuit, direct -current detection control circuit, electric welding machine transformer T2 and current transformer TA, be provided with rectifier bridge UI in the DC power supply circuit, filter capacitance C1, resistance R1, filter capacitance C3 and steady voltage chip U1, rectifier bridge UI's input is connected with first secondary end W2, electric capacity C1 connects in parallel on rectifier bridge UI's output, electric capacity C3's first end still is connected with steady voltage chip U1's input, direct -current detection control circuit is connected to steady voltage chip U1's input and earthing terminal, utilize rectifier stack, RC pi -type filter and steady voltage chip to constitute DC power supply circuit, can provide safe and reliable's steady voltage DC power supply for direct -current detection control circuit, avoid because voltage is unstable, and influence the condition emergence of direct -current detection control circuit's sensitivity.
Description
Technical field
This utility model is related to the fields such as material science and technology, is the electric welding machine based on all wave rectification design specifically
Use empty load energy-saving circuit.
Background technology
Welding machine is exactly the electrical equipment of the power supply for providing certain characteristic for welding, is welded due to flexible simple and convenient solid and reliable,
Even each industrial circle, such as Aero-Space, ship, automobile, container are widely used in after welding with the advantage of mother metal equality strength
Deng.
Electric welding machine (electric welding machine) actually has the transformator for declining external characteristics, will
220V and 380V alternating currents are changed into the unidirectional current of low pressure, and electric welding machine typically can be divided into two kinds by out-put supply species, and one kind is to hand over
Stream power supply；One kind is galvanic.The electric welding machine of direct current is it may be said that be also a powerful commutator, point both positive and negative polarity is handed over
During stream electricity input, Jing after transformator transformation, then by rectifier rectification, then output has the power supply for declining external characteristics, outfan
Huge change in voltage can be produced when switching on and off, ignite electric arc in instantaneous short circuit at the two poles of the earth, using produce electric arc come
Consumable electrode and wlding, cooling reached later the purpose for combining them.The characteristics of welding transformer has itself, external characteristics is just
It is voltage drastically declines after welding rod ignites characteristic.
The critical piece of electric welding machine is a step-down transformer, and the two ends of secondary coil are welded part and welding rod, work
As when ignite electric arc, welding rod is fused in the gap of workpiece in the high temperature of electric arc.Because the iron core of welding transformer has certainly
The characteristics of body, therefore the characteristic drastically declined with voltage, i.e., voltage declines after welding rod ignites；In the short circuit of welding rod adhesion
When, voltage even more drastically declines.
In welding operation, although the electric current in circuit is equal everywhere, but because resistance everywhere is different, do not fixing
Resistance maximum (this resistance is contact resistance) of contact position, according to the heat effect law (being also Joule's law) of electric current, i.e. Q=
IR.t understands：When electric current is equal, then the bigger position heating of resistance is higher, therefore in welding, the contact of welding rod is namely
The contact resistance of the contact position of the metallic object for being connect is maximum, then the electric heating for producing at this position is naturally also just most, welds in addition
Bar is the relatively low alloy of fusing point, naturally easily fusing.Alloy electrode core after fusing is bonded on welded article body, after cooling just
Welding object is bonded in one piece.
Utility model content
The purpose of this utility model is to provide the electric welding machine empty load energy-saving circuit based on all wave rectification design, by electricity
Source transformator T1, A.C. contactor KM, relay K, DC power supply circuit, DC detecting control circuit, electric welder transformer T2
And current transformer TA is used cooperatively, when can work as electric welding machine stopping welding (no-load condition), it is not necessary to the situation of manual power-off
Under, after some time using normally opened and normally closed interlock between A.C. contactor, current transformer and relay
Coordinate, reach and automatically power off, so as to play the purpose of energy-conservation；When arranging, using rectistack, RC pi type filters and voltage stabilizing core
Piece constitutes DC power supply circuit, can provide safe and reliable constant voltage dc source for DC detecting control circuit, it is to avoid due to
Spread of voltage, and affect the situation of the susceptiveness of DC detecting control circuit to occur, total has design science, uses
The characteristics such as safe and reasonable.
This utility model is achieved through the following technical solutions：The electric welding machine empty load energy-saving electricity designed based on all wave rectification
Road, including mains transformer T1, A.C. contactor KM, relay K, DC power supply circuit, DC detecting control circuit, electric welding machine
The normally open contact K1 of transformator T2 and current transformer TA, A.C. contactor KM and relay K connects, and the exchange after connecting connects
Tentaculum KM and normally open contact K1 are connected in parallel on the primary side W1 of mains transformer T1, the first secondary end W2 of mains transformer T1 with
DC power supply circuit is connected, and DC power supply circuit is connected with DC detecting control circuit, the connection of DC detecting control circuit
Current transformer TA Secondary Windings, normally open contact KM1 and electric welder transformer that the primary side W1 passes through A.C. contactor KM
The primary side of T2 is connected, and the secondary end of electric welder transformer T2 is by the normally closed interlock KM2 of A.C. contactor KM and power supply transformation
The second subprime end W3 of device T1 is connected, and the secondary end of electric welder transformer T2 is connected with current transformer TA first windings；
Rectifier bridge UI, filter capacitor C1, resistance R1, filter capacitor C3 and voltage stabilizing chip U1 are provided with the DC power supply circuit,
The input of rectifier bridge UI is connected with the first secondary end W2, and electric capacity C1 is connected in parallel on the outfan of rectifier bridge UI, electric capacity C1's
First end is connected with the first end of resistance R1, and second end of resistance R1 is connected with the first end of electric capacity C3, and the of electric capacity C1
Two ends are connected with second end of electric capacity C3 and are connected with the earth terminal of voltage stabilizing chip U1, the first end of electric capacity C3 also with voltage stabilizing
The input of chip U1 is connected, and the input of voltage stabilizing chip U1 and earth terminal connect DC detecting control circuit.
Further is that this utility model is better achieved, and can carry out break-make to control circuit using current transformer
Electricity, so that relay K break-makes, and then effectively reaches disconnection and supplies to electric welder transformer with reference to relay, A.C. contactor
Electricity, with this purpose of energy-conservation is reached, especially using following setting structures：Transistor V1, resistance are provided with the DC detecting
R1, transistor V2, potentiometer RP, electric capacity C2 and diode VD2, the outfan of voltage stabilizing chip U1 is by relay K and transistor
The colelctor electrode of V1 is connected, the outfan of voltage stabilizing chip U1 emitter stage also respectively with transistor V2, second end of electric capacity C2 and
Second end of current transformer TA Secondary Windings is connected；The first end of current transformer TA Secondary Windings passes through diode VD2
It is connected with second fixing end of potentiometer RP, the adjustable end of potentiometer RP connects the first end of electric capacity C2, the of potentiometer RP
One fixing end connects the base stage of transistor V2, and the colelctor electrode of transistor V2 is connected by resistance R1 with the base stage of transistor V1,
The emitter stage of transistor V1 connects the earth terminal of voltage stabilizing chip U1.
Further is that this utility model is better achieved, especially using following setting structures：The electric capacity C2 is using electricity
Electric capacity is solved, and the positive pole of electric capacity C2 is connected with the second end of current transformer TA Secondary Windings, diode VD2 is using luminous two
Pole pipe, and the positive pole connection potentiometer RP of diode VD2.
Further is that this utility model is better achieved, and can carry out break-make to control circuit using current transformer
Electricity, so that relay K break-makes, and then effectively reaches disconnection and supplies to electric welder transformer with reference to relay, A.C. contactor
Electricity, with this purpose of energy-conservation is reached, especially using following setting structures：The first end of the current transformer TA first windings point
It is not connected with the first end of the secondary end at second end and electric welder transformer T2 of second subprime end W3, second subprime end W3's
First end is connected by normally closed interlock KM2 with the second end of the secondary end of electric welder transformer T2.
Further is that this utility model is better achieved, and can carry out break-make to control circuit using current transformer
Electricity, so that relay K break-makes, and then effectively reaches disconnection and supplies to electric welder transformer with reference to relay, A.C. contactor
Electricity, with this purpose of energy-conservation is reached, especially using following setting structures：The first end of the primary side of electric welder transformer T2 passes through
Normally open contact KM1 is connected with second end of primary side W1, the first end of primary side W1 and the primary side of electric welder transformer T2
The second end be connected, and the line being connected with the second end of the primary side of electric welder transformer T2 in the first end of primary side W1
Protective tube FU is additionally provided with road.
It is further to utilize the power on/off of switch Q master control electric welding machines for this utility model is better achieved, especially adopt
Use following setting structures：It is connected with alternating current power supply in the primary side of electric welder transformer T2 and the primary side of mains transformer T1
Circuit on be additionally provided with switch Q.
It is further to realize effective electric welding for this utility model is better achieved, especially set using following
Put structure：Second end of the current transformer TA first windings is connected with the electrode holder A for taking folder welding rod, and the electric welding machine becomes
Weldment B is connected with second end of the secondary end of depressor T2.
This utility model compared with prior art, with advantages below and beneficial effect：
This utility model passes through mains transformer T1, A.C. contactor KM, relay K, DC power supply circuit, DC detecting
Control circuit, electric welder transformer T2 and current transformer TA are used cooperatively, and can be worked as electric welding machine and be stopped welding (no-load condition)
When, it is not necessary in the case of manual power-off, after some time using between A.C. contactor, current transformer and relay
The normally opened cooperation and normally closed interlock between, reach and automatically power off, so as to play the purpose of energy-conservation；When arranging, using rectification
Heap, RC pi type filters and voltage stabilizing chip constitute DC power supply circuit, can provide safe and reliable for DC detecting control circuit
Constant voltage dc source, it is to avoid due to spread of voltage, and affect the situation of the susceptiveness of DC detecting control circuit to occur, entirely
Structure has design science, using characteristics such as safe and reasonable.
This utility model when in use, can pass through to adjust the resistance of RP, and then reach the susceptiveness for adjusting V2, finally reach
To the highly sensitive purpose for automatically powering off, the effect of effective energy-conservation is played.
This utility model can be automatically powered off, so as to reach energy-conservation in the case of the unwelded operation of certain hour
Purpose.
Description of the drawings
Fig. 1 is electrical block diagram of the present utility model.
Specific embodiment
This utility model is described in further detail with reference to embodiment, but embodiment of the present utility model is not
It is limited to this.
Embodiment 1：
Based on all wave rectification design electric welding machine empty load energy-saving circuit, by mains transformer T1, A.C. contactor KM,
Relay K, DC power supply circuit, DC detecting control circuit, electric welder transformer T2 and current transformer TA are used cooperatively, energy
Enough when electric welding machine stops welding (no-load condition), it is not necessary in the case of manual power-off, after some time using exchange
The normally opened cooperation and normally closed interlock between catalyst, current transformer and relay, reaches and automatically powers off, so as to play
The purpose of energy-conservation；When arranging, DC power supply circuit is constituted using rectistack, RC pi type filters and voltage stabilizing chip, can be straight
Stream detection control circuit provides safe and reliable constant voltage dc source, it is to avoid due to spread of voltage, and affect DC detecting control
The situation of the susceptiveness of circuit processed occurs, and total has design science, using characteristics such as safe and reasonable, as shown in figure 1, special
Cai Yong not following setting structures：Including mains transformer T1, A.C. contactor KM, relay K, DC power supply circuit, direct current inspection
Survey the normally open contact K1 strings of control circuit, electric welder transformer T2 and current transformer TA, A.C. contactor KM and relay K
A.C. contactor KM and normally open contact K1 after connection, and series connection is connected in parallel on the primary side W1 of mains transformer T1, power supply transformation
The first secondary end W2 of device T1 is connected with DC power supply circuit, and DC power supply circuit is connected with DC detecting control circuit,
DC detecting control circuit connects current transformer TA Secondary Windings, and the primary side W1 is touched by the normally opened of A.C. contactor KM
Head KM1 is connected with the primary side of electric welder transformer T2, and the secondary end of electric welder transformer T2 is by the normal of A.C. contactor KM
Close contact KM2 to be connected with the second subprime end W3 of mains transformer T1, the secondary end and Current Mutual Inductance of electric welder transformer T2
Device TA first windings are connected；Rectifier bridge UI, filter capacitor C1, resistance R1, filtering are provided with the DC power supply circuit
Electric capacity C3 and voltage stabilizing chip U1, the input of rectifier bridge UI is connected with the first secondary end W2, and electric capacity C1 is connected in parallel on rectifier bridge UI
Outfan on, the first end of electric capacity C1 is connected with the first end of resistance R1, second end of resistance R1 and the first of electric capacity C3
End is connected, and second end of electric capacity C1 is connected with second end of electric capacity C3 and is connected with the earth terminal of voltage stabilizing chip U1, electricity
The first end for holding C3 is also connected with the input of voltage stabilizing chip U1, and the input of voltage stabilizing chip U1 and earth terminal connection direct current are examined
Survey control circuit.
Embodiment 2：
The present embodiment is further optimized on the basis of above-described embodiment, as shown in figure 1, being further preferably real
Existing this utility model, can carry out power on/off using current transformer to control circuit, so that relay K break-makes, and then
Effectively reach disconnection with reference to relay, A.C. contactor to power to electric welder transformer, with the purpose that this reaches energy-conservation, especially adopt
Use following setting structures：Be provided with the DC detecting transistor V1, resistance R1, transistor V2, potentiometer RP, electric capacity C2 and
Diode VD2, the outfan of voltage stabilizing chip U1 is connected by relay K with the colelctor electrode of transistor V1, voltage stabilizing chip U1
Second end phase of outfan emitter stage, second end of electric capacity C2 and current transformer TA Secondary Windings also respectively with transistor V2
Connection；The first end of current transformer TA Secondary Windings is connected by diode VD2 with second fixing end of potentiometer RP, electricity
The adjustable end of position device RP connects the first end of electric capacity C2, and first fixing end of potentiometer RP connects the base stage of transistor V2, crystal
The colelctor electrode of pipe V2 is connected by resistance R1 with the base stage of transistor V1, emitter stage connection voltage stabilizing chip U1 of transistor V1
Earth terminal.
Embodiment 3：
The present embodiment is further optimized on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, especially using following setting structures：The electric capacity C2 adopts electrochemical capacitor, and the positive pole of electric capacity C2 with
Second end of current transformer TA Secondary Windings is connected, and diode VD2 adopts light emitting diode, and the positive pole of diode VD2
Connection potentiometer RP.
Embodiment 4：
The present embodiment is further optimized on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, power on/off can be carried out to control circuit using current transformer so that relay K break-makes,
Further effectively reach disconnection with reference to relay, A.C. contactor to power to electric welder transformer, the purpose of energy-conservation is reached with this, it is special
Cai Yong not following setting structures：The first end of the current transformer TA first windings respectively with second end of second subprime end W3
Be connected with the first end of the secondary end of electric welder transformer T2, the first end of second subprime end W3 by normally closed interlock KM2 with
Second end of the secondary end of electric welder transformer T2 is connected.
Embodiment 5：
The present embodiment is further optimized on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, power on/off can be carried out to control circuit using current transformer so that relay K break-makes,
Further effectively reach disconnection with reference to relay, A.C. contactor to power to electric welder transformer, the purpose of energy-conservation is reached with this, it is special
Cai Yong not following setting structures：The first end of the primary side of electric welder transformer T2 is by normally open contact KM1 and primary side W1's
Second end is connected, and the first end of primary side W1 is connected with the second end of the primary side of electric welder transformer T2, and in primary
Protective tube FU is additionally provided with the circuit that the first end of end W1 is connected with the second end of the primary side of electric welder transformer T2.
Embodiment 6：
The present embodiment is further optimized on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, can utilize switch Q master control electric welding machines power on/off, especially using following setting structures：In electric welding
Switch is additionally provided with the circuit that the primary side of machine transformator T2 and the primary side of mains transformer T1 are connected with alternating current power supply
Q, the alternating current power supply is 380V power current.
Embodiment 7：
The present embodiment is further optimized on the basis of any of the above-described embodiment, as shown in figure 1, being further more preferable
Realize this utility model, effective electric welding can be realized, especially using following setting structures：The current transformer TA
Second end of first winding is connected with the electrode holder A for taking folder welding rod, the second end of the secondary end of the electric welder transformer T2
On be connected with weldment B.
When in use, after Q closures are switched, exchange 380V voltage Jing mains transformer T1 blood pressure lowerings, rectistack UI (are preferably adopted
With rectifier) after the RC pi type filters filtering of rectification and electric capacity C1, resistance R1 and electric capacity C3 compositions, by voltage stabilizing chip
Running voltage is provided after U1 (preferably just there are LM78 series three terminal regulators) voltage stabilizing output (preferably for DC detecting control circuit
+24V).Now A.C. contactor KM is in release conditions, electric welder transformer T2 no powers.
During welding, the welding rod on electrode holder A is contacted with weldment B, equivalent to by the second subprime end W3 of mains transformer T1 around
Group short circuit, when short circuit current flows through the first winding of current transformer TA, in the Secondary Winding of current transformer TA sensing is produced
Voltage, this induced voltage Jing diode VD2 (while play a part of Monitoring and Controlling circuit whether normal work) rectification and electric capacity
After C2 filtering, the base stage of transistor V2 is added to by potentiometer RP, make transistor V2 and transistor V1 conductings, relay K be powered
Adhesive, the normally open contact K1 of relay K is connected, and A.C. contactor KM energization adhesives, the normally open contact KM1 of A.C. contactor KM connects
Logical, the normally closed interlock KM2 of A.C. contactor KM disconnects, and electric welder transformer T2 energization work can carry out normal weld operation.
Occur in welding process the short time stop weldering when, due to the time-lag action of electric capacity C2, transistor V1 and transistor V2 still maintain conducting
State.If stopping the weldering time more than certain hour (being preferably arranged to 1~2min), electric capacity C2 discharge offs, then transistor V2 and crystalline substance
Body pipe V1 ends, and relay K and A.C. contactor KM discharges, and electric welder transformer T2 enters power-off energy saving state.Weld again
When, welding rod is contacted with weldment.
The resistance of regulator potentiometer RP, can change the sensitivity of transistor V2 actions.
The above, is only preferred embodiment of the present utility model, and any pro forma limit is not done to this utility model
System, every any simple modification, equivalent variations made to above example according to technical spirit of the present utility model each fall within
Within protection domain of the present utility model.
Claims (7)
1. the electric welding machine empty load energy-saving circuit for being designed based on all wave rectification, it is characterised in that：Including mains transformer T1, exchange
Catalyst KM, relay K, DC power supply circuit, DC detecting control circuit, electric welder transformer T2 and current transformer TA,
A.C. contactor KM connects with the normally open contact K1 of relay K, and A.C. contactor KM and normally open contact K1 after connecting are in parallel
On the primary side W1 of mains transformer T1, the first secondary end W2 of mains transformer T1 is connected with DC power supply circuit, directly
Stream power circuit is connected with DC detecting control circuit, DC detecting control circuit connection current transformer TA Secondary Windings,
The primary side W1 is connected by the normally open contact KM1 of A.C. contactor KM with the primary side of electric welder transformer T2, electric welding machine
The second subprime end W3 of normally closed interlock KM2 and mains transformer T1 that the secondary end of transformator T2 passes through A.C. contactor KM is connected
Connect, the secondary end of electric welder transformer T2 is connected with current transformer TA first windings；Set in the DC power supply circuit
It is equipped with rectifier bridge UI, filter capacitor C1, resistance R1, filter capacitor C3 and voltage stabilizing chip U1, the input of rectifier bridge UI and first
Secondary end W2 is connected, and electric capacity C1 is connected in parallel on the outfan of rectifier bridge UI, the first end of electric capacity C1 and the first end of resistance R1
It is connected, second end of resistance R1 is connected with the first end of electric capacity C3, second end of electric capacity C1 and the second end phase of electric capacity C3
Connect and be connected with the earth terminal of voltage stabilizing chip U1, the first end of electric capacity C3 is also connected with the input of voltage stabilizing chip U1,
The input of voltage stabilizing chip U1 and earth terminal connection DC detecting control circuit.
2. it is according to claim 1 based on all wave rectification design electric welding machine empty load energy-saving circuit, it is characterised in that：Institute
State and be provided with DC detecting transistor V1, resistance R1, transistor V2, potentiometer RP, electric capacity C2 and diode VD2, voltage stabilizing core
The outfan of piece U1 is connected by relay K with the colelctor electrode of transistor V1, the outfan of voltage stabilizing chip U1 also respectively with crystalline substance
Second end of the emitter stage of body pipe V2, second end of electric capacity C2 and current transformer TA Secondary Windings is connected；Current transformer
The first end of TA Secondary Windings is connected by diode VD2 with second fixing end of potentiometer RP, the adjustable end of potentiometer RP
The first end of connection electric capacity C2, first fixing end of potentiometer RP connects the base stage of transistor V2, and the colelctor electrode of transistor V2 leads to
Cross resistance R1 to be connected with the base stage of transistor V1, the emitter stage of transistor V1 connects the earth terminal of voltage stabilizing chip U1.
3. it is according to claim 2 based on all wave rectification design electric welding machine empty load energy-saving circuit, it is characterised in that：Institute
Stating electric capacity C2 adopts electrochemical capacitor, and the positive pole of electric capacity C2 to be connected with the second end of current transformer TA Secondary Windings, two poles
Pipe VD2 adopts light emitting diode, and the positive pole connection potentiometer RP of diode VD2.
4. it is according to claim 3 based on all wave rectification design electric welding machine empty load energy-saving circuit, it is characterised in that：Institute
State the first end of current transformer TA first windings respectively with second end of second subprime end W3 and electric welder transformer T2 time
The first end at level end is connected, and the first end of second subprime end W3 passes through the secondary of normally closed interlock KM2 and electric welder transformer T2
Second end at end is connected.
5. it is according to claim 4 based on all wave rectification design electric welding machine empty load energy-saving circuit, it is characterised in that：Electricity
The first end of the primary side of welder transformer T2 is connected by normally open contact KM1 with second end of primary side W1, primary side W1
First end be connected with the second end of the primary side of electric welder transformer T2, and first end and the electric welding machine in primary side W1 becomes
Protective tube FU is additionally provided with the circuit that second end of the primary side of depressor T2 is connected.
6. according to claim 1 or 2 or 3 or 4 or 5 based on all wave rectification design electric welding machine empty load energy-saving circuit,
It is characterized in that：In the line that the primary side of electric welder transformer T2 and the primary side of mains transformer T1 are connected with alternating current power supply
Switch Q is additionally provided with road.
7. the electric welding machine empty load energy-saving circuit designed based on all wave rectification according to claim 4 or 5, its feature exists
In：Second end of the current transformer TA first windings is connected with the electrode holder A for taking folder welding rod, the electric welder transformer
Weldment B is connected with second end of the secondary end of T2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621261437.1U CN206169458U (en) | 2016-11-21 | 2016-11-21 | Electric welding is with unloaded energy -conserving circuit based on full wave rectification design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621261437.1U CN206169458U (en) | 2016-11-21 | 2016-11-21 | Electric welding is with unloaded energy -conserving circuit based on full wave rectification design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206169458U true CN206169458U (en) | 2017-05-17 |
Family
ID=58687058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621261437.1U Expired - Fee Related CN206169458U (en) | 2016-11-21 | 2016-11-21 | Electric welding is with unloaded energy -conserving circuit based on full wave rectification design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206169458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425032A (en) * | 2016-11-21 | 2017-02-22 | 重庆优盾焊接材料有限公司 | No-load energy-saving circuit for welding machine based on full-wave rectification design |
| CN109259046A (en) * | 2018-10-30 | 2019-01-25 | 安徽省徽观生态农业科技有限公司 | A kind of a full set of intelligent automation control system for preboiled rice processing |
-
2016
- 2016-11-21 CN CN201621261437.1U patent/CN206169458U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425032A (en) * | 2016-11-21 | 2017-02-22 | 重庆优盾焊接材料有限公司 | No-load energy-saving circuit for welding machine based on full-wave rectification design |
| CN109259046A (en) * | 2018-10-30 | 2019-01-25 | 安徽省徽观生态农业科技有限公司 | A kind of a full set of intelligent automation control system for preboiled rice processing |
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