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1. 发明专利

JP2001037252A METHOD OF GENERATING SINE-WAVE FOR CONTROLLING POWER FACTOR COMPENSATION 失效
公开(公告)号：JP2001037252A
公开(公告)日：2001-02-09
申请号：JP26375699
申请日：1999-09-17
申请人： LG ELECTRONICS INC
发明人： HAN GYEONG-HAE , KIM JON-HO , SIM KEON , LEE HYUNG-SANG , LEE DONG-HYUK
IPC分类号： G05F1/70 , H02M7/48 , H03B28/00
摘要： PROBLEM TO BE SOLVED: To generate a sine-wave for optimum compensation for power factor even during variation of frequency and load by sensing a load of an inverter circuit and then re-set the amplitude of sine-wave table and sine-wave value. SOLUTION: First, a zero voltage point of AC voltage is supplied to an interrupt terminal (S10), an interval of the zero voltage point detecting signal is detected and the frequency of AC voltage is decided to be 50 Hz or 60 Hz (S12). Amplitude of the sine-wave table and sine-wave are set to the determined frequency (S14). Thereafter, the sine-wave table is stored in an auxiliary memory (S16). While a power factor compensation is conducted, change of load is sensed (S20) but if there is no change of load, the pre-stored sine-wave is supplied in direct to a power factor compensation control unit. However, if a load is changed, after the amplitude of sine-wave table and sine-wave value are set again, such sine-wave table is stored in the auxiliary memory.

2. 发明专利

JP2001037251A POWER FACTOR COMPENSATION CIRCUIT OF INVERTER SYSTEM AND ITS METHOD 失效
公开(公告)号：JP2001037251A
公开(公告)日：2001-02-09
申请号：JP26221199
申请日：1999-09-16
申请人： LG ELECTRONICS INC
发明人： HAN GYEONG-HAE , KIM JON-HO , SIM KEON , LEE HYUNG-SANG , LEE DONG-HYUK
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a power factor compensation circuit of an inverter system which is simple in circuit configuration and allows semiconductor manufacturing processes to be simplified and manufacturing cost to be reduced, and also provide its method. SOLUTION: An inverter system consists of a rectification section 61, a choke coil 62, a capacitor 63 for smoothing, and an inverter 64. A power factor compensation circuit of this inverter system is provided with a switching element Q1 for controlling a charging/discharging operation of a capacitor 63 for smoothing according to a switching signal, a zero voltage detection section 65 which outputs a zero voltage detection signal, a frequency judgement section 70 which outputs a frequency judgement signal, a voltage level detection section 67 for detecting the voltage across the capacitor 63 for smoothing, a ROM 66 which stores the data with respect to a sine wave of the input supply voltage, a controlling section 68 which adjusts the cycle according to the frequency of the input power judged by the frequency judgement section 70 and outputs the adjusted cycle, and a driving section 69 which controls the on/off of the switching element Q1.

3. 发明专利

JP2001045770A DEVICE AND METHOD FOR CORRECTING POWER FACTOR OF INVERTER SYSTEM 失效
公开(公告)号：JP2001045770A
公开(公告)日：2001-02-16
申请号：JP26402399
申请日：1999-09-17
申请人： LG ELECTRONICS INC
发明人： HAN GYEONG-HAE , KIM JON-HO , SIM KEON , LEE HYUNG-SANG , LEE DONG-HYUK
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To resolve interferneces generated at a periphery at the initial stage of the application of a power supply, at the initial drive stage of an inverter motor, and at drive of a PAM switching element by causing a PAM function to selectively operate. SOLUTION: A rectifying part 61 for rectifying a commercial AC power supply to a DC voltage, a choke coil 62 and a smoothing capacitor 63 for smoothing the output voltage for outputting, an inverter 64 for driving a motor M by converting the DC voltage into a three-phase AC power supply by pulse width modulation, a switching element Q1 for performing PAM drive, an input voltage-sensing part 66 for sensing the input voltage of an input commercial power supply, an input current-sensing part 67 for sensing the input current, and a control part for driving the inverter and a load by turning on/off the switching element Q1, only when the waveform of the sensed input voltage becomes in phase with that of an input DC current are included, thus composing the power factor correction device of an inverter system.

4. 发明专利

JP2001037253A POWER FACTOR COMPENSATOR OF INVERTER SYSTEM FOR DRIVING MOTOR 失效
公开(公告)号：JP2001037253A
公开(公告)日：2001-02-09
申请号：JP26377599
申请日：1999-09-17
申请人： LG ELECTRONICS INC
发明人： HAN GYEONG-HAE , KIM JON-HO , SIM KEON , LEE HYUNG-SANG , LEE DONG-HYUK
IPC分类号： H02M7/48 , H02P27/06 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To provide a power factor compensator of an inverter system for driving a motor which can improve a power factor of the voltage and the current inputted into an inverter. SOLUTION: A power factor compensator of an inverter system for driving a motor is constituted of a zero voltage detection section 630 which detects a zero voltage of full-wave rectified AC power from an AC power supply and outputs a zero voltage detection signal corresponding to the zero voltage, a switching transistor N1 parallelly connected to an inverter, and a PAM driving section 650 which stores the data corresponding to the sine wave voltage having a similar pattern to that of the AC supply voltage and outputs, to the switching transistor N1, a driving signal having a specified duty ratio corresponding to the data value based on the zero voltage detection signal after considering the voltage frequency of the AC supply voltage.

5. 发明专利

JP2001042958A INVERTER CONTROL SIGNAL GENERATING DEVICE USING POINTER SYSTEM 失效
公开(公告)号：JP2001042958A
公开(公告)日：2001-02-16
申请号：JP26449299
申请日：1999-09-17
申请人： LG ELECTRONICS INC
发明人： HAN GYEONG-HAE , KIM JON-HO , SIM KEON , LEE HYUNG-SANG , LEE DONG-HYUK
IPC分类号： G05F1/70
摘要： PROBLEM TO BE SOLVED: To enable economical, high-efficiency power factor compensation by providing an initial point setting part, 1st and 2nd point generation parts, sine wave data parts, multiplication parts, phase generation parts, etc. SOLUTION: The initial point setting part 80 sets an initial pointer according to a zero-crossing point and an arbitrary pointer value. The 1st pointer generation part 74 calculates a pulse driving cycle and the set pointer, and outputs them. The 2nd pointer generation part 75 processes the pulse driving cycle inputted from the 1st pointer generation part 74 to find a next pointer. A sine wave data part 76 reads in sine wave data from a sine wave table according to the pointer outputted from the 1st pointer generation part 75 and outputs the data. A multiplication part 77 multiplies the sine wave data by a pulse width determination coefficient determined with a voltage level and outputs the result. A phase generation part 78 processes the amplitude determination value of an offset register 79 with the multiplication output value to generate reference values of respective phases.

6. 发明专利

JP2001037254A POWER FACTOR COMPENSATION CIRCUIT OF INVERTER SYSTEM AND ITS METHOD 失效
公开(公告)号：JP2001037254A
公开(公告)日：2001-02-09
申请号：JP26400099
申请日：1999-09-17
申请人： LG ELECTRONICS INC
发明人： HAN GYEONG-HAE , KIM JON-HO , SIM KEON , LEE HYUNG-SANG , LEE DONG-HYUK
IPC分类号： H02J3/18 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a power factor compensator of an inverter system which is simplified in circuit configuration of a circuit for adjusting a power factor and a PAM(pulse amplitude modulation) function by digital control and thereby is reduced in manufacturing cost and also provide its method. SOLUTION: A power factor compensator of an inverter system is constituted of a rectification section 61 which rectifies the commercial AC power to DC voltage, a choke coil 62 and capacitor 63 for smoothing which eliminates an AC component in the DC voltage, an inverter 64 which transforms the DC voltage outputted from the capacitor 63 to three-phase AC power again by PWM, a switching element Q1 for controlling a charging/discharging operation of the capacitor 63, a zero voltage detection section 65 for detecting a zero point of the commercial AC power, a voltage level detection section 67 for detecting the voltage across the capacitor 63, a ROM 66 which already stores the data with respect to a sine wave of the supply voltage, a controlling section 68 which outputs a PAM function adjusted pulse width, and a driving section 69 for controlling the switching element Q1.

7. 发明专利

ES2532258T3 Unidad exterior de tipo succión/descarga frontal para acondicionador de aire 未知
公开(公告)号：ES2532258T3
公开(公告)日：2015-03-25
申请号：ES04714967
申请日：2004-02-26
申请人： LG ELECTRONICS INC
发明人： KIM IN-GYU , KOO JA-HYUNG , PARK BYUNG-IL , KIM YANG-HO , HONG YOUNG-HO , HEO KYEONG-WOOK , SUNG SI-KYONG , LEE DONG-HYUK , KIM TAE-GEUN
IPC分类号： F24F1/52 , F24F5/00 , F24F1/00 , F24F1/18 , F24F1/56 , F24F13/00 , F24F13/075 , F24F13/20
摘要： Una unidad exterior de tipo succión/descarga frontal para un acondicionador de aire, que comprende: una carcasa de unidad exterior (10) que tiene una unidad de superficie frontal (60) abierta para ser conectada al exterior de un edificio, ambas unidades laterales (12a, 12b) formadas en ambos extremos de la unidad de superficie frontal, una unidad de superficie trasera (12c) formada para enfrentarse a la unidad de superficie frontal, una unidad de superficie inferior (14) formada en los extremos inferiores de la unidad de superficie frontal y la unidad de superficie trasera y una unidad de superficie superior (16) formada en los extremos superiores de la unidad de superficie frontal y la unidad de superficie trasera, el interior de la carcasa de la unidad exterior que está separada del interior del edificio por ambas de las unidades laterales (12a, 12b), la unidad de superficie trasera (12c), la unidad de superficie interior (14) y la unidad de superficie superior (16); un compresor (20) para comprimir un gas refrigerante suministrado desde una unidad interior a la carcasa de la unidad exterior; un condensador de aire enfriado (30) instalado en la carcasa de la unidad exterior (10), para condensar el gas refrigerante suministrado desde el compresor (20); y un ventilador de enfriamiento (40) para succionar aire exterior desde el exterior del edificio a través de la unidad de superficie frontal (60) y el condensador de aire enfriado (30) y descargar el aire con calor intercambiado en el condensador de aire enfriado (30) al exterior del edificio a través de la unidad de superficie frontal; por lo cual dicho condensador de aire enfriado tiene una sección transversal en forma de U y comprende al menos una unidad redondeada (30a, 30b); caracterizada por que dicho condensador de aire enfriado (30) se dispone para enfrentarse a ambas de las unidades laterales (12a, 12b) en una distancia predeterminada (D) y para enfrentarse a la unidad de superficie frontal (60); una cubierta superior (32) está instalada en el lado superior de un espacio formado entre el condensador de aire enfriado (30) y las superficies de la carcasa de la unidad exterior (10) que se enfrenta al condensador de aire enfriado (30), para inducir aire exterior succionado desde el exterior del edificio a través de la unidad de superficie frontal (60) al espacio; un radio (R) de la unidad redondeada (30a, 30b) del condensador de aire enfriado (30) es al menos dos veces tan grande como una distancia predeterminada (D) del espacio entre el condensador de aire enfriado (30) y ambas de las unidades laterales (12a, 12b) de la carcasa de la unidad exterior (10).

8. 发明专利

DE602004025454D1 未知
公开(公告)号：DE602004025454D1
公开(公告)日：2010-03-25
申请号：DE602004025454
申请日：2004-02-26
申请人： LG ELECTRONICS INC
发明人： KIM IN-GYU , KOO JA-HYUNG , PARK BYUNG-IL , KIM YANG-HO , HONG YOUNG-HO , HEO KYEONG-WOOK , SUNG SI-KYONG , LEE DONG-HYUK , KIM TAE-GEUN
IPC分类号： F24F5/00 , F24F1/00 , F24F13/20
摘要： The present invention relates to a front suction/discharge type outdoor unit for an air conditioner to provide an economical installation structure for efficiently installing a large capacity outdoor unit and provide services for easily transferring the outdoor unit, and examining, exchanging and repairing its components, by separating a suction casing and a discharge casing. The front suction/discharge type outdoor unit includes an outdoor unit suction casing having its one surface externally opened, and sucking external air for heat exchange, and an outdoor unit discharge casing being separated from or coupled to the outdoor unit suction casing, sucking external air through the outdoor unit suction casing, having its one surface externally opened, and discharging heat exchanged external air. Here, opened surfaces are respectively formed in the outdoor unit suction casing and the outdoor unit discharge casing to connect them to discharge the sucked external air.

9. 发明专利

DE602004025414D1 未知
公开(公告)号：DE602004025414D1
公开(公告)日：2010-03-25
申请号：DE602004025414
申请日：2004-02-26
申请人： LG ELECTRONICS INC
发明人： KIM IN-GYU , KOO JA-HYUNG , PARK BYUNG-IL , KIM YANG-HO , HONG YOUNG-HO , HEO KYEONG-WOOK , SUNG SI-KYONG , LEE DONG-HYUK , KIM TAE-GEUN
IPC分类号： F24F5/00 , F24F20060101 , F24F1/00 , F25B39/04 , F25D23/12
摘要： The present invention discloses a built-in type outdoor unit for an air conditioner to provide an efficient installation structure for installing the outdoor unit increased in capacity due to high air conditioning capacity in a built-in type. The built-in type outdoor unit includes a louver frame being fixedly installed on a rectangular space inner wall formed on an outer wall of a building, being divided into a suction area and a discharge area, including a plurality of louver blades in each area, and sucking and discharging air through gaps between the louver blades, an outdoor unit casing being formed in a rectangular parallelepiped shape, being fixedly installed on the inside bottom of the building to contact the louver frame, having its one surface facing the suction area and the discharge area of the louver frame opened and the other surfaces closed, and being divided into a suction unit and a discharge unit corresponding to the suction area and the discharge area of the louver frame, a compressor installed in the suction unit of the outdoor unit casing, for compressing a refrigerant gas supplied from an indoor unit through pipe lines, an air-cooled condenser installed in the suction unit of the outdoor unit casing, for condensing the refrigerant gas from the compressor, and a sirocco cooling fan installed in the discharge unit of the outdoor unit casing, for supplying external air to the air-cooled condenser through the suction area, and discharging heat exchanged air through the discharge area.

10. 发明专利

DE602004021785D1 未知
公开(公告)号：DE602004021785D1
公开(公告)日：2009-08-13
申请号：DE602004021785
申请日：2004-02-26
申请人： LG ELECTRONICS INC
发明人： KIM IN-GYU , KOO JA-HYUNG , PARK BYUNG-IL , KIM YANG-HO , HONG YOUNG-HO , HEO KYEONG-WOOK , SUNG SI-KYONG , LEE DONG-HYUK , KIM TAE-GEUN
IPC分类号： F24F5/00 , F24F1/00 , F24F13/00 , F24F13/075 , F24F13/20
摘要： A built-in type compressor/condenser unit for an air conditioner with an efficient installation structure for installing an increased capacity outdoor unit is provided. The built-in type compressor/condenser unit includes a louver frame installed on a rectangular shaped space formed on an outer wall of a building. The louver frame is divided into a suction area and a discharge area, each with a plurality of louver blades. The compressor/condenser unit casing is positioned proximate the louver frame, with the surface of the casing which faces the suction area and the discharge area of the louver frame open, and the remaining surfaces of the casing closed. A compressor, an air-cooled condenser, and a cooling fan are installed in the compressor/condenser unit casing.

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