CN202193820U - Residual stress eliminating device using high-energy electric pulse generated in discharge of capacitor - Google Patents
Residual stress eliminating device using high-energy electric pulse generated in discharge of capacitor Download PDFInfo
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- CN202193820U CN202193820U CN2011202632718U CN201120263271U CN202193820U CN 202193820 U CN202193820 U CN 202193820U CN 2011202632718 U CN2011202632718 U CN 2011202632718U CN 201120263271 U CN201120263271 U CN 201120263271U CN 202193820 U CN202193820 U CN 202193820U
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- 239000003990 capacitor Substances 0.000 title claims abstract description 19
- 238000004146 energy storage Methods 0.000 claims abstract description 59
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 17
- 229910052710 silicon Inorganic materials 0.000 claims description 17
- 239000010703 silicon Substances 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 3
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- 238000000034 method Methods 0.000 description 9
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- 238000005516 engineering process Methods 0.000 description 5
- 235000011194 food seasoning agent Nutrition 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
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- 230000001052 transient effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
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- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
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- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses a residual stress eliminating device using high-energy electric pulse generated in discharge of a capacitor. The device comprises a power input module, a capacitor energy storage group, a charging module and a discharging module, wherein the power input module provides power; the capacitor energy storage group is used for storing electric energy; the charging module is used for charging the capacitor energy storage group; and the discharging module is used for discharging the stored electric energy of the capacitor energy storage group to load. The charging module and the discharging module are controlled by a first relay; a coil of the first relay is connected with a time sequence control module. The time sequence control module is used for controlling the switch-on of the charging module and the discharging module in turn and leading the capacitor energy storage group to be charged firstly and then discharge. The device has the characteristics of simple line, compact structure, convenience in use and high efficiency.
Description
Technical field
The utility model relates to the unrelieved stress cancellation element that a kind of electricity consumption condenser discharge produces high energy electric pulse.
Technical background
In making the course of processing, workpiece receives from the role and influence such as various technological factors such as welding, casting, thermal treatment, cutting, forgings, the assembling by force that in assembling process, also can occur causing because size is inharmonious simultaneously.All these all can produce unnecessary unrelieved stress in interior, thereby have reduced static load intensity, the fatigue resistance of workpiece and quickened the stress corrosion process of workpiece, also are simultaneously that workpiece produces distortion and rimose important factor in order.So, how to reduce or eliminate unrelieved stress unnecessary in the workpiece, be a key technical problem that presses for solution in the manufacturing technology always.
Common elimination unrelieved stress technology has seasoning and thermal life technology.Seasoning relies on the temperature variation in season round the clock; Apply thermal stress repeatedly to workpiece; Long-term accumulation makes hardware that trickle pucker & bloat take place, and makes the slow slippage of metal lattice, and finally reaches the purpose that discharges unrelieved stress; But seasoning length consuming time, efficient is low, floor space is big, and seasoning technology manageability not.
Thermal life is the stress relief annealing method; Through workpiece is heated to below the transformation temperature, under hot state, reduces the yield strength of workpiece material, thereby make workpiece material that yield deformation take place under the unrelieved stress effect; Produce stress relaxation, thereby reduce or eliminate the unrelieved stress of interior.The thermal life cycle shortens dramatically than seasoning; Be widely used; But the lehre cost is high, energy consumption is high, floor space is big, utility appliance is many, workpiece is prone to oxidation, labor condition is poor, seriously polluted and difficult processing large-scale component or heating are prone to impaired member, and thermal life handle can the reduction material mechanical property.
The utility model content
For overcoming the shortcoming of prior art, the utility model has designed a kind of compact construction, and is easy to use, and the electricity consumption condenser discharge that efficient is high produces the unrelieved stress cancellation element of high energy electric pulse.
The electricity consumption condenser discharge produces the unrelieved stress cancellation element of high energy electric pulse; Comprise the Power Entry Module that power supply is provided; The electrical condenser energy storage group of store electrical energy, the charging module that electrical condenser energy storage group is charged and the electric energy that electrical condenser energy storage group stores is released into the discharge module of load;
Described charging module and discharge module are controlled by first rly., the coil of described first rly. and control described charging module and a discharge module take turns conducting, the first time-sequence control module that afterwards discharges that charges of electrical condenser energy storage group is connected.
Further; Be provided with boost rectifying circuit between described Power Entry Module and the charging module, described boost rectifying circuit is made up of with the high voltage silicon rectifier stack bridge rectifier that is connected with described charging module the step-up transformer that is connected with described Power Entry Module.
Further; Described charging module comprises one group of normally opened contact, protective resistance, diode, silicon controlled rectifier, resistance capaciting absorpting circuit and the charging current limiter resistance of described first rly.; Described normally opened contact is connected with the silicon controlled control utmost point through protective resistance, diode; Described resistance capaciting absorpting circuit is parallelly connected with silicon controlled rectifier, and described silicon controlled rectifier is connected with described electrical condenser energy storage group through charging current limiter resistance; Described resistance capaciting absorpting circuit is made up of absorbing resistor and absorption capacitances in series.
Further; Described discharge module comprises one group of normally closed contact of described first rly.; The discharge electrode that contacts with workpiece; With the vacuum contactor that is connected with described electrical condenser energy storage group, and connect, be used to adjust electrical parameter with described vacuum contactor to produce the adjustable inductance of pulsed current; Regulate described adjustable inductance changing the electrical parameter of described discharge module, and change the form of described electrical condenser energy storage group discharge generation high energy electric pulse; Described discharge electrode clamps through anchor clamps and workpiece; When normally closed contact was closed, the control coil of described vacuum contactor got electric, the discharge module conducting.
Further; The discharging current sampled measurements module that described discharge module and is measured the pulsed current of its release is connected; Described discharging current sampled measurements module comprises the mutual inductor that is connected with described discharge module; The digital storage oscilloscope of the pulsed current signal after amplifying the magnifying glass of the pulsed current that mutual inductor gathers and showing, store this amplification.
Further, described time-sequence control module comprises the PWM wave producer, the current-limiting resistance that is connected with described PWM wave producer, the triode that is connected with coil with described first rly.; When the PWM ripple is input as high level, described triode conducting, described first rly. gets electric, breaks off described discharge module, and the described charging module of conducting charges to described electrical condenser energy storage group; When the PWM ripple is input as lower level; Described triode ends, and described first relay electric-loss breaks off described charging module; The described discharge module of conducting, described electrical condenser energy storage group to workpiece discharge high energy electric pulse, to eliminate the unrelieved stress of workpiece; Through regulating duration of charging and the discharge time that PWM wave period and dutycycle are controlled described electrical condenser energy storage group.
Further, described electrical condenser energy storage group is composed in parallel by a plurality of high voltage capacitors.
Further; The automatic drain charge circuit of outage of the residual electric energy after the discharge of described electrical condenser energy storage group and releasing capacitor energy storage group is connected; The automatic drain charge circuit of described outage is controlled by second rly., and the automatic drain charge circuit of described outage is made up of the normally closed contact and the drain charge resistance of described second rly..
The technical conceive of the utility model is: compose in parallel electrical condenser energy storage group store electrical energy through a plurality of high voltage capacitors; Discharge and recharge sequential circuit control charging module and discharge module by the PWM ripple and take turns triggering and conducting according to predefined sequential action; Control high voltage capacitor energy storage group is charged earlier; Carry out discharge process again after being full of electricity, workpiece is eliminated the processing of unrelieved stress to produce high energy electric pulse.
The utlity model has that circuit is simple, compact construction, easy to use, characteristics that efficient is high.
Description of drawings
Fig. 1 is the schematic circuit diagram of the utility model.
Fig. 2 is a PWM ripple synoptic diagram.
Fig. 3 is the equivalent circuit of electrical condenser energy storage group to load discharge.
The oscillating impulse electric current of the decay of Fig. 4 a discharge loop.
The decaying pulse electric current of the dullness of Fig. 4 b discharge loop.
Embodiment
With reference to accompanying drawing, further specify the utility model:
The electricity consumption condenser discharge produces the unrelieved stress cancellation element of high energy electric pulse; Comprise the Power Entry Module 1 that power supply is provided; The electrical condenser energy storage group 3 of store electrical energy; The charging module 4 that electrical condenser energy storage group 3 is charged and the electric energy that electrical condenser energy storage group 3 stores is released into the discharge module 5 of load;
Described charging module 4 is controlled by the first relay K M1 with discharge module 5, and the coil of the described first relay K M1 and is controlled described charging module 4 and discharge module 5 conductings in turn, the electrical condenser energy storage group 3 first time-sequence control modules 6 that afterwards discharge that charge are connected.
Be provided with boost rectifying circuit 2 between described Power Entry Module 1 and the charging module 4, described boost rectifying circuit 2 is made up of with the three-phase high-voltage bridge rectifier that high voltage silicon rectifier stack DG1～6 that are connected with described charging module 4 are formed the step-up transformer T1 that is connected with described Power Entry Module 1.
Described charging module 4 comprises one group of normally opened contact KM1-1, protective resistance R2, diode D1, controllable silicon SCR, resistance capaciting absorpting circuit and the charging current limiter resistance R 3 of the described first relay K M1; Described normally opened contact KM1-1 is connected with the control utmost point of controllable silicon SCR through protective resistance R2, diode D1; Described resistance capaciting absorpting circuit is parallelly connected with controllable silicon SCR, and described silicon controlled rectifier is connected with described electrical condenser energy storage group 3 through charging current limiter resistance R 3; Described resistance capaciting absorpting circuit is composed in series with absorption capacitor C 1 by absorbing resistor R1.
Described discharge module 5 comprises one group of normally closed contact KM1-2 of the described first relay K M1; The discharge electrode J1, the J2 that contact with workpiece; With the vacuum contactor TJC that is connected with described electrical condenser energy storage group 3, and connect, be used to adjust electrical parameter to produce the adjustable inductance L of suitable pulsed current with described vacuum contactor TJC
0Regulate described adjustable inductance L
0Changing the electrical parameter of described discharge module 5, and change described electrical condenser energy storage group 3 discharge generation high energy electric pulses; Described discharge electrode J1, J2 clamp through anchor clamps and workpiece; When normally closed contact KM1-2 was closed, the control coil of described vacuum contactor TJC got electric, discharge module 5 conductings.
The discharging current sampled measurements module 8 that described discharge module 5 and is measured the pulsed current of its release is connected; Described discharging current sampled measurements module 8 comprises the mutual inductor RCO that is connected with described discharge module 5; The digital storage oscilloscope OSC of the pulsed current signal after amplifying the magnifying glass AP of the pulsed current that mutual inductor gathers and showing, store this amplification.
Described time-sequence control module 6 comprises the PWM wave producer, the current-limiting resistance R5 that is connected with described PWM wave producer, the triode Q1 that is connected with coil with the described first relay K M1; When the PWM ripple is input as high level, described triode Q1 conducting, the described first relay K M1 gets electric, breaks off described discharge module 5, and the described charging module 4 of conducting charges to described electrical condenser energy storage group 3; When the PWM ripple is input as lower level; Triode Q1 ends, and the described first relay K M1 dead electricity is broken off described charging module 4; The described discharge module 5 of conducting, the described workpiece of 3 pairs of described electrical condenser energy storage groups discharge high energy electric pulses, to eliminate the unrelieved stress of workpiece; Through regulating duration of charging and the discharge time that PWM wave period and dutycycle are controlled described electrical condenser energy storage group 3.
Described electrical condenser energy storage group 3 is composed in parallel by a plurality of high voltage capacitor CHM.
The automatic drain charge circuit 7 of outage of the residual electric energy after 3 discharges of described electrical condenser energy storage group 3 and releasing capacitor energy storage group is connected; The automatic drain charge circuit 7 of described outage is controlled by the second relay K M2, and the automatic drain charge circuit 7 of described outage is made up of normally closed contact KM2-1 and the drain charge resistance R 4 of the described second relay K M2.
The technical conceive of the utility model is: compose in parallel electrical condenser energy storage group store electrical energy through a plurality of high voltage capacitor CHM; Discharge and recharge sequential circuit control charging module 4 and discharge module 5 according to predefined sequential action triggering and conducting in turn by the PWM ripple; Control high voltage capacitor energy storage group 3 is charged earlier; Carry out discharge process again after being full of electricity, workpiece is eliminated the processing of unrelieved stress to produce high energy electric pulse.
In Fig. 1, the input terminus of Power Entry Module 1 connects three-phase four-wire power, introduce to boost rectifying circuit 2 by air switch QG through safety fuse, three-phase four-wire power wherein one give switch power supply KP power supply mutually, to produce direct current.Boost rectifying circuit 2 improves the charging AC supply voltage through three-phase voltage increasing X-former T1 earlier, and the bridge rectifier circuit of forming through six high voltage silicon rectifier stack DG1～DG6 again carries out rectification, with output high-pressure pulsating direct current.Electrical condenser energy storage group 3 is composed in parallel by a plurality of high voltage capacitor CHM, is used for store electrical energy and carries out discharge process.Charging module 4 through protective resistance R2 and diode D1 triggering and conducting controllable silicon SCR, carries out constant voltage charge with the high-pressure pulsating direct current after the rectification to electrical condenser energy storage group 3 after one group of normally opened contact KM1-1 of the first relay K M1 gets electric closure.In the discharge module 5; Another group normally closed contact KM1-2 of the first relay K M1 is closed after dead electricity to get the coil of vacuum contactor TJC; Thereby triggering and conducting vacuum contactor TJC gives load, the adjustable inductance L in the discharge module 5 through two copper electrode J1 and J2 with the high energy electric pulse snap-out release
0Be used to adjust the electrical parameter of discharge loop, to produce suitable pulsed current.Triode Q1 conducting when the PWM ripple is input as high level in the time-sequence control module 6; Relay K M1 is got; Triode Q1 ends when the PWM ripple is input as lower level, makes relay K M1 dead electricity, thereby control charging module 4 and discharge module 5 take turns triggering and conducting according to certain time sequence; Charge earlier with control capacitance device energy storage group 3, carry out discharge process again after being full of electricity.Automatically drain charge loop 7 is controlled by the second relay K M2; After air switch QG closure, the second relay K M2 gets electric with normally closed contact KM2-1 disconnection, thereby makes automatic drain charge loop 7 inoperative; After air switch QG breaks off; The second relay K M2 dead electricity is closed with normally closed contact KM2-1, so just can with also do not discharge in the electrical condenser energy storage group 3 or residual electric energy through force and outer meeting resistance R4 connection with its release, prevent error shock.Discharging current sampled measurements module 8 is through meeting mutual inductor RCO in discharge module, the pulsed current of discharge module 5 is carried out sampled measurements, after signal amplifier AP processing and amplifying, shows through oscilloscope OSC and to gather.
In Fig. 2, the PWM ripple that control discharges and recharges sequential is at t
1In time is high level, and charging module 4 triggering and conducting make electrical condenser energy storage group 3 charge; The PWM ripple is at t
2In time is lower level, discharge module 5 conductings, and 3 pairs of loads of electrical condenser energy storage group are discharged; PWM T=t wave period
1+ t
2, dutycycle
Through regulating cycle T and dutycycle q just can control capacitance device energy storage group 3 duration of charging t
1With t discharge time
2
In Fig. 3, C is the equivalent total capacitance of discharge loop, and R is the equivalent total electrical resistance of discharge loop, and L is the equivalent total inductance of discharge loop, and the magnitude of voltage that electrical condenser energy storage group 3 is full of behind the electricity is assumed to be U
0, be full of the electricity back and load discharged through discharge switch K; According to the volt-ampere characteristic of Kirchhoff's current law (KCL), Kirchhoff's second law and each circuit element, can list the discharge loop equation
Make ratio of damping
undamped oscillation radian frequency
discharge loop equation for
when 0＜ζ＜1; The transient response of discharge loop is the oscillatory process of decay, can produce the oscillating impulse electric current of the decay shown in Fig. 4 a; When ζ>=1, the transient response of discharge loop is dull attenuation process, can produce the decaying pulse electric current of the dullness shown in Fig. 4 b.Through regulating described adjustable inductance L
0Change the ratio of damping ζ and the undamped oscillation angular frequency of discharge loop
nSo that discharge loop produces multi-form pulsed current, thereby satisfy needs with the suitable high energy electric pulse of described electrical condenser energy storage group 3 discharge generation.The unrelieved stress cancellation element of electricity consumption condenser discharge generation high energy electric pulse is eliminated the unrelieved stress of workpiece just through electrical condenser energy storage group 3 discharge generation pulsed current.
The utlity model has that circuit is simple, compact construction, easy to use, characteristics that efficient is high.The described content of this specification sheets embodiment only is enumerating the way of realization of utility model design; The protection domain of the utility model should not be regarded as and only limit to the specific form that embodiment states, the protection domain of the utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (8)
1. the electricity consumption condenser discharge produces the unrelieved stress cancellation element of high energy electric pulse; It is characterized in that: comprise the Power Entry Module that power supply is provided; The electrical condenser energy storage group of store electrical energy; The charging module that electrical condenser energy storage group is charged and the electric energy that electrical condenser energy storage group stores is released into the discharge module of load;
Described charging module and discharge module are controlled by first rly., the coil of described first rly. and control described charging module and a discharge module take turns conducting, the first time-sequence control module that afterwards discharges that charges of electrical condenser energy storage group is connected.
2. electricity consumption condenser discharge as claimed in claim 1 produces the unrelieved stress cancellation element of high energy electric pulse; It is characterized in that: be provided with boost rectifying circuit between described Power Entry Module and the charging module, described boost rectifying circuit is made up of with the high voltage silicon rectifier stack bridge rectifier that is connected with described charging module the step-up transformer that is connected with described Power Entry Module.
3. electricity consumption condenser discharge as claimed in claim 2 produces the unrelieved stress cancellation element of high energy electric pulse; It is characterized in that: described charging module comprises one group of normally opened contact, protective resistance, diode, silicon controlled rectifier, resistance capaciting absorpting circuit and the charging current limiter resistance of described first rly.; Described normally opened contact is connected with the silicon controlled control utmost point through protective resistance, diode; Described resistance capaciting absorpting circuit is parallelly connected with silicon controlled rectifier, and described silicon controlled rectifier is connected with described electrical condenser energy storage group through charging current limiter resistance; Described resistance capaciting absorpting circuit is made up of absorbing resistor and absorption capacitances in series.
4. electricity consumption condenser discharge as claimed in claim 3 produces the unrelieved stress cancellation element of high energy electric pulse; It is characterized in that: described discharge module comprises one group of normally closed contact of described first rly.; The discharge electrode that contacts with workpiece; With the vacuum contactor that is connected with described electrical condenser energy storage group, and connect, be used to adjust electrical parameter with described vacuum contactor to produce the adjustable inductance of pulsed current; Regulate described adjustable inductance changing the electrical parameter of described discharge module, and change the form of described electrical condenser energy storage group discharge generation high energy electric pulse; Described discharge electrode clamps through anchor clamps and workpiece; When normally closed contact was closed, the control coil of described vacuum contactor got electric, the discharge module conducting.
5. electricity consumption condenser discharge as claimed in claim 4 produces the unrelieved stress cancellation element of high energy electric pulse; It is characterized in that: the discharging current sampled measurements module that described discharge module and is measured the pulsed current of its release is connected; Described discharging current sampled measurements module comprises the mutual inductor that is connected with described discharge module; The digital storage oscilloscope of the pulsed current signal after amplifying the magnifying glass of the pulsed current that mutual inductor gathers and showing, store this amplification.
6. electricity consumption condenser discharge as claimed in claim 5 produces the unrelieved stress cancellation element of high energy electric pulse; It is characterized in that: described time-sequence control module comprises the PWM wave producer; The current-limiting resistance that is connected with described PWM wave producer, the triode that is connected with coil with described first rly.; When the PWM ripple is input as high level, described triode conducting, described first rly. gets electric, breaks off described discharge module, and the described charging module of conducting charges to described electrical condenser energy storage group; When the PWM ripple is input as lower level; Described triode ends, and described first relay electric-loss breaks off described charging module; The described discharge module of conducting, described electrical condenser energy storage group to workpiece discharge high energy electric pulse, to eliminate the unrelieved stress of workpiece; Through regulating duration of charging and the discharge time that PWM wave period and dutycycle are controlled described electrical condenser energy storage group.
7. electricity consumption condenser discharge as claimed in claim 6 produces the unrelieved stress cancellation element of high energy electric pulse, and it is characterized in that: described electrical condenser energy storage group is composed in parallel by a plurality of high voltage capacitors.
8. electricity consumption condenser discharge as claimed in claim 7 produces the unrelieved stress cancellation element of high energy electric pulse; It is characterized in that: the automatic drain charge circuit of outage of the residual electric energy after the discharge of described electrical condenser energy storage group and releasing capacitor energy storage group is connected; The automatic drain charge circuit of described outage is controlled by second rly., and the automatic drain charge circuit of described outage is made up of the normally closed contact and the drain charge resistance of described second rly..
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202632718U CN202193820U (en) | 2011-07-23 | 2011-07-23 | Residual stress eliminating device using high-energy electric pulse generated in discharge of capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202632718U CN202193820U (en) | 2011-07-23 | 2011-07-23 | Residual stress eliminating device using high-energy electric pulse generated in discharge of capacitor |
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| CN202193820U true CN202193820U (en) | 2012-04-18 |
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| CN2011202632718U Expired - Fee Related CN202193820U (en) | 2011-07-23 | 2011-07-23 | Residual stress eliminating device using high-energy electric pulse generated in discharge of capacitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260785A (en) * | 2011-07-23 | 2011-11-30 | 浙江大学 | Residual stress relieving device based on high-energy electrical pulses generated by discharge of capacitor |
| CN103627886A (en) * | 2013-12-16 | 2014-03-12 | 浙江大学 | Current pulse control system for relieving residual stress |
| CN112928809A (en) * | 2021-04-23 | 2021-06-08 | 阳光电源股份有限公司 | Power supply device, control method and system |
-
2011
- 2011-07-23 CN CN2011202632718U patent/CN202193820U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260785A (en) * | 2011-07-23 | 2011-11-30 | 浙江大学 | Residual stress relieving device based on high-energy electrical pulses generated by discharge of capacitor |
| CN103627886A (en) * | 2013-12-16 | 2014-03-12 | 浙江大学 | Current pulse control system for relieving residual stress |
| CN103627886B (en) * | 2013-12-16 | 2015-12-16 | 浙江大学 | For eliminating the impulse of current Controlling System of unrelieved stress |
| CN112928809A (en) * | 2021-04-23 | 2021-06-08 | 阳光电源股份有限公司 | Power supply device, control method and system |
| CN112928809B (en) * | 2021-04-23 | 2024-05-14 | 阳光电源股份有限公司 | Power supply device, control method and system |
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