WO2018079153A1 - レーザ加工装置 - Google Patents

レーザ加工装置 Download PDF

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Publication number
WO2018079153A1
WO2018079153A1 PCT/JP2017/034460 JP2017034460W WO2018079153A1 WO 2018079153 A1 WO2018079153 A1 WO 2018079153A1 JP 2017034460 W JP2017034460 W JP 2017034460W WO 2018079153 A1 WO2018079153 A1 WO 2018079153A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
voltage
laser processing
circuit
processing apparatus
Prior art date
Application number
PCT/JP2017/034460
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
友章 伊佐地
邦博 田中
圭太 永利
利道 奥村
Original Assignee
パナソニック デバイスＳｕｎｘ 株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック デバイスＳｕｎｘ 株式会社 filed Critical パナソニック デバイスＳｕｎｘ 株式会社
Publication of WO2018079153A1 publication Critical patent/WO2018079153A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/06—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode

Definitions

  • the present invention relates to a laser processing apparatus.
  • the laser processing apparatus prints or draws on a processing target portion by irradiating the processing target with laser light emitted from a laser light source.
  • a control part and a laser processing part operate
  • the power supply device is provided with a surge suppression circuit or noise filter for removing noise contained in the commercial power supply in the previous stage of the power supply circuit. This prevents noise from entering the power supply voltage supplied from the power supply circuit to the internal circuit.
  • Patent Document 1 discloses a lightning protection device configured to protect an electronic device from a high voltage caused by a lightning strike by supplying power from the power line to the electronic device via an insulation transformer and a line filter. .
  • the surge suppression substrate does not have high withstand voltage characteristics.
  • the number of surge inputs to the surge suppression board may exceed a preset limit value. In this case, the characteristics of the surge suppression substrate deteriorate, and the surge suppression substrate cannot sufficiently suppress the surge voltage.
  • the noise filter does not have a high withstand voltage characteristic, and if a surge voltage or an overvoltage is repeatedly applied to the noise filter, electric leakage is likely to occur in the noise filter.
  • the lightning strike protection device disclosed in Patent Document 1 attenuates surge noise with an insulating transformer and a line filter. However, when the characteristics of the line filter deteriorate due to the repeatedly applied surge voltage, the lightning strike protection device cannot sufficiently suppress the surge voltage included in the power supply supplied to the electronic device.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a laser processing apparatus capable of preventing malfunction caused by a surge voltage included in a commercial power supply.
  • One aspect of the present invention is a laser processing apparatus, in which a commercial power supply is supplied via a breaker, a noise suppression apparatus for suppressing noise included in the commercial power supply, and a commercial power supply supplied from the noise suppression apparatus
  • a power supply circuit that generates a DC power supply voltage and supplies it to an internal circuit, and a step-down insulating transformer that is interposed between any one of the breaker and the power supply circuit and steps down the voltage of the commercial power supply.
  • the step-down insulating transformer is preferably interposed between the breaker and the noise suppression device.
  • the noise suppression device preferably includes a surge suppression circuit and a noise filter.
  • the step-down insulation transformer includes a primary side coil that receives the output voltage supplied from the breaker, and a secondary side coil that supplies the step-down voltage to the surge suppression circuit. preferable.
  • the step-down voltage output from the secondary coil of the step-down isolation transformer is supplied to the surge suppression circuit, and the output voltage of the surge suppression circuit in which the surge voltage is suppressed is input to the noise filter.
  • the step-down insulating transformer is interposed between the noise suppression device and the power supply circuit.
  • the output voltage of the noise suppression device is stepped down by the step-down insulation transformer and supplied to the power supply circuit.
  • the block diagram which shows the power supply apparatus of a laser processing apparatus.
  • (A) (b) is an output waveform diagram which shows operation
  • a commercial power supply 1 of around 100 V or around 200 V is supplied to a primary coil of a step-down isolation transformer 5 via a power terminal 2, a key switch 3 and a breaker 4.
  • the power terminal 2 is a terminal block to which commercial power is supplied.
  • the key switch 3 is a switch for opening and closing power supply to a unit that consumes a large amount of power, such as a laser light source, and other units.
  • the breaker 4 operates to cut off the short-circuit current when a short-circuit failure occurs between the power terminal 2 and the step-down insulation transformer 5.
  • the breaker 4 further operates to perform a return operation when an abnormality is avoided after the short-circuit current is interrupted.
  • the step-down insulation transformer 5 steps down the voltage of the commercial power source supplied to the primary side coil to a voltage of about 1 / 2.2 and outputs it from the secondary side coil. Even if an AC voltage of about 200 V is supplied as the commercial power source 1 with a step-down ratio of 1 / 2.2, an AC voltage of almost 100 V is output from the secondary side coil of the step-down insulating transformer 5, so that the power circuit 8 As a general-purpose product of 100V specification can be used.
  • the step-down isolation transformer 5 attenuates noise included in the input voltage simultaneously with step-down of the input voltage.
  • the output voltage of the step-down isolation transformer 5 is supplied to the surge suppression circuit 6.
  • the surge suppression circuit 6 clamps the high-frequency / harmonic component noise peak value included in the AC output voltage of the step-down insulating transformer 5 to a predetermined voltage and outputs the clamped voltage to the noise filter 7.
  • the noise filter 7 suppresses normal common noise from the voltage clamped by the surge suppression circuit 6 and stabilizes the input voltage of the power supply circuit 8.
  • the power supply circuit 8 smoothes the AC output voltage of the noise filter 7 and supplies it to the internal circuit 9 as a DC power supply voltage.
  • the commercial power source 1 is supplied to the step-down insulating transformer 5 through the power terminal 2, the key switch 3 and the breaker 4.
  • the input voltage V1 supplied to the primary coil of the step-down isolation transformer 5 may include a surge voltage sv1 that reaches several times the peak value p of the normal input voltage. .
  • the step-down insulating transformer 5 outputs an output voltage V2 obtained by stepping down the input voltage V1.
  • the surge voltage sv2 included in the output voltage V2 is a voltage obtained by stepping down the peak value of the surge voltage sv1 to approximately 1 ⁇ 2.
  • the output voltage V2 including the stepped down surge voltage sv2 is supplied to the surge suppression circuit 6, and the surge suppression circuit 6 and the noise filter 7 further attenuate the surge voltage sv2.
  • the noise filter 7 outputs an output voltage V3 including the attenuated surge voltage sv2 to the power supply circuit 8.
  • the DC power supply voltage V4 supplied from the power supply circuit 8 to the internal circuit 9 becomes a stable DC voltage from which noise is substantially removed.
  • step-down insulating transformer 5 having a step-down ratio of 1 / 2.2 is interposed between the breaker 4 and the surge suppression circuit 6, even if an AC voltage of about 200 V is supplied to the commercial power source 1, Since an AC voltage of approximately 100 V is output from the secondary coil of the step-down insulating transformer 5, a general-purpose product of 100 V specification can be used as the power supply circuit 8. Therefore, the cost of the power supply circuit 8 can be reduced.
  • the surge voltage is suppressed by stepping down the input voltage from the commercial power source 1 and the surge voltage or overvoltage included in the input voltage.
  • the circuit 6 can be supplied. Therefore, since the surge voltage supplied to the surge suppression circuit 6 can be suppressed, deterioration of the surge suppression circuit 6 due to the surge voltage can be suppressed.
  • the surge suppression circuit 6 can clamp the peak value of high-frequency / harmonic component noise contained in the AC output voltage to a predetermined voltage, the withstand voltage characteristics of the noise filter 7 and the power supply circuit 8 are set low. can do.
  • the noise filter 7 can stabilize normal input noise from the voltage clamped by the surge suppression circuit 6 and stabilize the input voltage of the power supply circuit 8. Therefore, since the output voltage of the power supply circuit 8 can be stabilized, the operation of the internal circuit 9 can be stabilized.
  • this laser processing apparatus can be installed in an environment where the commercial power supply 1 with a lot of noise is supplied.
  • the step-down insulating transformer 5 may be disposed between the noise filter 7 and the power supply circuit 8.
  • the subject matter of the invention may reside in fewer features than all the features of the specific embodiments and variations described above. The scope of the invention should be determined along with the full scope of the claims and equivalents.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Laser Beam Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Rectifiers (AREA)
PCT/JP2017/034460 2016-10-31 2017-09-25 レーザ加工装置 WO2018079153A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-213796 2016-10-31
JP2016213796A JP2018074813A (ja) 2016-10-31 2016-10-31 レーザ加工装置

Publications (1)

Publication Number Publication Date
WO2018079153A1 true WO2018079153A1 (ja) 2018-05-03

Family

ID=62024737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/034460 WO2018079153A1 (ja) 2016-10-31 2017-09-25 レーザ加工装置

Country Status (2)

Country Link
JP (1) JP2018074813A (enrdf_load_stackoverflow)
WO (1) WO2018079153A1 (enrdf_load_stackoverflow)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53106445A (en) * 1977-02-28 1978-09-16 Toshiba Corp Thunderbolt protector
JPH0413490A (ja) * 1990-05-02 1992-01-17 Mitsubishi Electric Corp レーザ加工装置
JPH0523562U (ja) * 1991-09-02 1993-03-26 ミヤチテクノス株式会社 レーザ電源装置
JP2016112609A (ja) * 2014-12-18 2016-06-23 パナソニックＩｐマネジメント株式会社 レーザ切断装置およびレーザ切断方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020262B1 (enrdf_load_stackoverflow) * 1969-04-10 1975-07-14
JPS5487839A (en) * 1977-12-24 1979-07-12 Matsushita Electric Ind Co Ltd Dc voltage stabilizer
JPH03231406A (ja) * 1990-02-07 1991-10-15 Chiyoda Corp 無通電接触子付き電気コネクタ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53106445A (en) * 1977-02-28 1978-09-16 Toshiba Corp Thunderbolt protector
JPH0413490A (ja) * 1990-05-02 1992-01-17 Mitsubishi Electric Corp レーザ加工装置
JPH0523562U (ja) * 1991-09-02 1993-03-26 ミヤチテクノス株式会社 レーザ電源装置
JP2016112609A (ja) * 2014-12-18 2016-06-23 パナソニックＩｐマネジメント株式会社 レーザ切断装置およびレーザ切断方法

Also Published As

Publication number Publication date
JP2018074813A (ja) 2018-05-10

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