专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明专利

JPS589768A ELECTRIC POWER SOURCE DEVICE FOR ARC WELDING MACHINE 失效
公开(公告)号：JPS589768A
公开(公告)日：1983-01-20
申请号：JP10635181
申请日：1981-07-07
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： MORIGUCHI HARUO , KANOU KUNIO , ISHII HIDEO
IPC分类号： B23K9/073 , B23K9/10 , B23K9/06
摘要： PURPOSE:To provide a device of a low cost and a small size by executing driving and switching of switching elements by high frequencies and switching elements by low frequencies in parallel thereby obtaining stable square wave currents of desired sizes in the output of a transformer. CONSTITUTION:The DC output of a DC electric power source part consisting of a rectifier 2 and a smoothing circuit 3 is inputted to an inverter device 4. The device 4 consists of a transformer 5 having a neutral point in the primary winding and two windings on the secondary side, transistors (TRs) 6, 7 connected to the primary winding of the transformer and a control circuit 8 which drives and controls the TRs 6, 7. The circuit 8 includes a part of a feedback control section. The secondary voltage of the transformer 5 is half-wave rectified by diodes 9, 10 respectively, and is supplied through an AC-DC switch 11 and a current detector 12 to load 13. The detector 12 detects the output current and transmits the same to the circuit 8, that is, said circuit controls the TRs 6, 7 which are switching elements in such a way that part of the output current is fed back and the output current is made constant.

92. 发明专利

JPS57115974A WELDING MACHINE 失效
公开(公告)号：JPS57115974A
公开(公告)日：1982-07-19
申请号：JP90981
申请日：1981-01-06
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： HAYASHI TETSUO , OKUMURA SABUROU , WAKIYA KAZUO , ISHII HIDEO
IPC分类号： B23K9/073 , B23K9/06
摘要： PURPOSE:To stabilize output voltage and current characteristics without using any DC insulating device by providing an auxiliary winding to the secondary winding of a transformer, and converting the output thereof to DC. CONSTITUTION:An auxiliary winding 1T is wound to a transformer 1 in tight coupling to a secondary winding 1S with sufficient insulation in terms of DC, and the output of the winding 1T is converted to DC by a rectifying and smoothing circuit 13. This DC is applied together with the reference voltage of a reference voltage power source to a differential amplifier 8, and an oscillator 9 is connected directly to a driving circuit 11. The voltage converted to DC by the circuit 13 is afloat with respect to the welding voltage of an output terminals 5 and therefore its reference potential is taken at the emitter potential of semiconductor switching elements 3A, 3B, whereby a DC insulating device is omitted.

93. 发明专利

JPS57112975A DC ARC WELDING MACHINE 失效
公开(公告)号：JPS57112975A
公开(公告)日：1982-07-14
申请号：JP18832480
申请日：1980-12-29
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： ISHII HIDEO , AOYAMA MASAHIRO , MORIGUCHI HARUO
IPC分类号： B23K9/073 , B23K9/00 , B23K9/06
摘要： PURPOSE:To perform optimum welding suited to the works by operating the signals detecting the welding voltage and welding current supplied to welding load and set signals and controlling welding voltage, welding current and dropping characteristics. CONSTITUTION:AC is converted to DC in a control output part 2, which supplies welding voltage and welding current to welding load 2'. This welding voltage is detected with a detecting circuit 3 and is divided voltage with resistances R1, R2 and the control signal proportional to the welding voltage of the resistance R2 is inputted via a resistance R3 to an operator 6. On the other hand, the welding current is detected with a detector 5, and is converted to voltage with a converter 6. This voltage is divided voltage with resistances R4, R5, and the control signal proportional to the welding current of the resistance R5 is inputted via the resistance R6 to an operator 10. Further, the set signal is inputted from a setting part 9 via a resistance R8 to the operator 10. In the operator 10, the control signals and the set signals are added and by the outputs thereof, the control rectifier elements in a control output part 2 are controlled of firing via a phase shifter 11, whereby the welding voltage, welding current and drooping characteristics are controlled.

94. 发明专利

JPS57109571A DC WELDING DEVICE 失效
公开(公告)号：JPS57109571A
公开(公告)日：1982-07-08
申请号：JP18661480
申请日：1980-12-27
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： HAYASHI TETSUO , OKUMURA SABUROU , WAKIYA KAZUO , ISHII HIDEO
IPC分类号： B23K9/073 , B23K9/06
摘要： PURPOSE:To produce a Dc welding device which injects a wire material in spherical shapes with a small size at a low cost by interrupting the DC voltage supplied to a control circuit intermittently by using a timer circuit and a semiconductor switching element. CONSTITUTION:During the period when a timer circuit 60 generates an output ''1'', a semiconductor switching element 56 is conductive, and depending upon whether the DC voltage of an AC-DC converter 50 for signal supplied through this is larger or smaller than reference voltage, an electric discharge time constant is changed over to CR1 or OR2, whereby the voltage formed between output terminals 42 and 43 is controlled to the constant voltage of a value smaller than the max. voltage. During this time, a wire material assumes a spherical shape. During the time when the circuit 60 generates an output ''0'' the element 56 is nonconductive, and the charging time constant of a control circuit 54 is fixed at CR1 and the voltage formed between the output terminals 42 and 43 is controlled to the max. voltage, so that the wire material made into a spherical shape is injected.

95. 发明专利

JPS57106475A PULSE ARC WELDING MACHINE 失效
公开(公告)号：JPS57106475A
公开(公告)日：1982-07-02
申请号：JP18452180
申请日：1980-12-24
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： KANOU KUNIO , MORIGUCHI HARUO , ISHII HIDEO
IPC分类号： B23K9/09
摘要： PURPOSE:To make voltage constant and reduce spatters by comparing and amplifying the detection voltage for arc voltage and a reference signal, supplying pulse signals as a driving signal for a switching circuit and making the width and period of pulse current variable. CONSTITUTION:A 3-phase AC power source 1 is dropped of voltage with a transformer 12, is rectified with a base current supplying and controlling rectifier 13, and is smoothed with a capacitor 14 so that base current is flowed between a wire 8 and base metals 11 via a diode 15. On the other hand, the dropped voltage is rectified with a rectifier 17, is smoothed with a capacitor 18, and is converted to pulse-like voltage with a switching circuit 19, so that pulses are supplied via a reactor 20 to the wire 8. The arc voltage is detected and the detected signal and a reference signal are compared with an amplifier 24, the differential voltage whereof is amplified and the output signal is inputted to a driving device 21. The signal from the device 21 drives the circuit 19, thereby changing the width and period of the pulse current.

96. 发明专利

JPS57100869A PULSE ARC WELDING MACHINE 失效
公开(公告)号：JPS57100869A
公开(公告)日：1982-06-23
申请号：JP17618280
申请日：1980-12-12
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： KANOU KUNIO , MORIGUCHI HARUO , ISHII HIDEO
IPC分类号： B23K9/09
摘要： PURPOSE:To perform spray-like pulse arc welding from small electric current to large current and decrease spatters by supplying periodic pulse current to a consumable electrode wire. CONSTITUTION:When the control signal of on from a control circuit 17 is applied to a switching circuit 15, energy is accumulated in a reactor 16 and a wiring inductance. Next, when the signal from the circuit 17 goes off, the circuit 15 goes off, and the energy accumulated in the reactor 16, etc., is released through a wire 8, base metals 11 and a flywheel diode 18. If pulse arc time and base time are controlled by controlling the circuit 15 with the circuit 17 by means of the command signal of a pulse arc controller 19 commanding the pulse arc time and the base time, the pulse arc current and base current flows in load.

97. 发明专利

JPS56157270A CONTROLLING METHOD FOR DC POWER SOURCE 失效
公开(公告)号：JPS56157270A
公开(公告)日：1981-12-04
申请号：JP6031480
申请日：1980-05-06
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： HAYASHI TETSUO , ISHII HIDEO
IPC分类号： H02M7/08 , G05F1/56 , H02M7/12 , H02M7/17 , H02M7/19 , H02M7/23
摘要： PURPOSE:To constantly control the two types of outputs with a simple construction by providing two controlled rectifiers, switching the outputs of the rectifies between series connection and parallel connection, providing one feedback controlling system and driving both the rectifiers. CONSTITUTION:Controlled rectifiers CC1, CC2 each having diodes D and thyristors TH are connected through respective transistors T1, T2 to a power source, are connected switchably in series or in parallel at the output side, and supply two types of electric powers such as for plasma welding and plasma cutting to a load. The output of a current detector CT is compared with the outputs of reference power sources ESS, ESP connected in parallel or in series, and a phase shifter PS is driven, thereby controlling the phase of the respective thyristors TH. Accordingly, it can simplify the construction by obtaining the low voltage large current and the high voltage low current outputs from one feedback controlling system and can also control both in preferable balance.

98. 发明专利

JPS5553098A DEVICE FOR FIRING XENON LAMP 失效
公开(公告)号：JPS5553098A
公开(公告)日：1980-04-18
申请号：JP12651078
申请日：1978-10-13
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： HAYASHI TETSUO , ISHII HIDEO
IPC分类号： H05B41/18 , H05B41/39

99. 发明专利

JPS54106824A STATIC INDUCTION APPARATUS AND METHOD OF PRODUCING SAME 失效
公开(公告)号：JPS54106824A
公开(公告)日：1979-08-22
申请号：JP1439378
申请日：1978-02-10
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： ISHII HIDEO , KATOUOKA MASAO , MIYABE ICHIROU , FUJIYOSHI TOSHIICHI
IPC分类号： H01F41/06 , H01F27/24 , H01F27/26 , H01F27/28 , H01F41/00

100. 发明专利

JPS513351A AAKUEAGAUJINGUYO CHOKURYUDENGENNO SEIGYOSOCHI 失效
公开(公告)号：JPS513351A
公开(公告)日：1976-01-12
申请号：JP7464974
申请日：1974-06-27
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： ISHII HIDEO , MORIGUCHI HARUO , HAYASHI TETSUO , KANO KUNIO
IPC分类号： B23K9/013 , B23K9/00

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式