WO2003085265A1 - Groupe compresseur et refrigerateur utilisant un tel groupe - Google Patents
Groupe compresseur et refrigerateur utilisant un tel groupe Download PDFInfo
- Publication number
- WO2003085265A1 WO2003085265A1 PCT/JP2003/004474 JP0304474W WO03085265A1 WO 2003085265 A1 WO2003085265 A1 WO 2003085265A1 JP 0304474 W JP0304474 W JP 0304474W WO 03085265 A1 WO03085265 A1 WO 03085265A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inverter
- compressor
- ambient temperature
- output voltage
- temperature
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0201—Current
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0202—Voltage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/10—Inlet temperature
Definitions
- the present invention relates to a compressor cut and a refrigerator using the same.
- the compressor unit used for a refrigerator equipped with a refrigerant circuit.
- the compressor unit includes a compressor, an inverter for driving the compressor, and an overcurrent protection device for protecting the inverter from an output overcurrent.
- the inverter output voltage is set according to the operating current value of the overcurrent protection device. That is, the inverter output voltage is set so that the inverter output current does not exceed the operating current value of the overcurrent protection device and the largest starting torque is obtained.
- the overcurrent protection device has the characteristic that the operating current value decreases when the ambient temperature is high, and the operating current value increases when the ambient temperature is low.
- an object of the present invention is to provide a compressor unit that can increase a starting torque by increasing an inverter output voltage without operating an overcurrent protection device during a low-temperature start-up in which a starting load increases, and a compressor unit using the same. To provide a refrigerating machine.
- a compressor unit of the present invention comprises a compressor, an inverter for driving the compressor, and an overcurrent for protecting the inverter from an output overcurrent.
- an operating current value of the overcurrent protection device has a temperature characteristic that changes according to an ambient temperature, and a temperature sensor that detects an ambient temperature; and a temperature sensor that detects the ambient temperature.
- a control unit for controlling the output voltage of the inverter when the compressor is started based on the ambient temperature detected by the control unit.
- the compressor unit having the above configuration, when the operating current value of the overcurrent protection device has a temperature characteristic that changes in accordance with the ambient temperature, for example, the output current of the inverter to be compared with the operating current value or By starting the compressor at the inverter output voltage where the input current does not exceed the operating current value at each ambient temperature, the inverter output voltage can be increased without activating the overcurrent protection device during low temperature startup when the startup load increases. This includes increasing the starting torque to facilitate starting the compressor.
- control unit is configured such that an output current or an input current of the impeller is less than an operating current value of the overcurrent protection device at an ambient temperature detected by the temperature sensor and the operating current thereof It is characterized in that the inverter output voltage at startup is determined based on the ambient temperature detected by the temperature sensor so as to be close to the value.
- the output current or the input current of the inverter is less than and near the operating current value of the overcurrent protection device at the ambient temperature detected by the temperature sensor. Since the inverter output voltage is determined based on the ambient temperature detected by the temperature sensor, the inverter output voltage at startup can be as high as possible according to the temperature characteristics of the operating current value of the overcurrent protection device. .
- the compressor unit has a temperature characteristic in which the operating current value of the overcurrent protection device increases as the ambient temperature decreases, and decreases as the ambient temperature increases.
- the lower the ambient temperature detected by the temperature sensor the higher the inverter output voltage at the start-up, and the higher the ambient temperature detected by the temperature sensor, the lower the inverter output voltage at the start-up.
- the inverter output voltage at startup based on the ambient temperature detected by the temperature sensor Is determined.
- the operating current value of the overcurrent protection device increases as the ambient temperature decreases, and the operating current value of the overcurrent protection device decreases as the ambient temperature increases.
- the lower the ambient temperature detected by the temperature sensor is, the higher the inverter output voltage at startup becomes, and the higher the ambient temperature detected by the temperature sensor is!
- a refrigerator of the present invention is characterized by using the above-mentioned compressor unit.
- the inverter output voltage can be increased without activating the overcurrent protection device at the time of low-temperature startup in which the startup load increases, and the compressor is easily started by increasing the startup torque. it can.
- FIG. 1 is a schematic configuration diagram of a compressor cut according to an embodiment of the present invention.
- FIG. 2 is a flowchart for explaining the operation of the control unit of the compressor cut.
- Figures 3A and 3B show the relationship between the ambient temperature and the inverter output for determining the inverter output voltage when starting the compressor.
- FIG. 4 is a diagram showing a temporal change in the inverter output voltage at the time of startup.
- FIG. 5 is a diagram showing the relationship between the operating frequency and the inverter output voltage.
- FIG. 6 is a diagram showing a temperature characteristic of an operating current value of the overcurrent protection device.
- FIG. 1 is a schematic configuration diagram of a compressor unit used in an air conditioner according to an embodiment of the present invention.
- the compressor unit includes a rectifier circuit 1 to which an AC source (not shown) is connected; An inverter 2 for converting the DC voltage from the rectifier circuit 1 into an AC voltage, And a compressor 3 driven by an output voltage from the inverter 2.
- the positive output terminal of the rectifier circuit 1 is connected to one input terminal of the inverter 2, and the negative output terminal of the rectifier circuit 1 is connected to the other input terminal of the inverter 2 via the current shunt resistor 4.
- I have.
- a smoothing capacitor C is connected between both output terminals of the rectifier circuit 1.
- one end of the current shunt resistor 4 on the inverter 2 side is connected to one input terminal (anode side of the built-in light emitting diode) of the photo power resistor 5 via the resistor R 1, and the current shunt resistor 4 is connected to the rectifier circuit 1 side. Is connected to the other input terminal of the photocoupler 5 (the cathode side of the built-in light emitting diode). A resistor R2 is connected between both input terminals of the photocoupler 5.
- one output terminal (collector side of the built-in output transistor) of the above-mentioned photo power blur 5 is connected to the input terminal of the control unit 6 via the resistor R3, and the other output terminal of the photo convertor 5 (the built-in output transistor (Emitter side) is connected to ground.
- the temperature sensor 7 for detecting the ambient temperature is connected to the input terminal of the control unit 6.
- the control unit 6 includes a microcomputer and an input / output circuit, and controls the output voltage of the inverter 2.
- the shunt resistor 4, the photocoupler 5, and the resistors R1 to R4 constitute an overcurrent protection device. If the input current of the inverter 2 becomes larger than a predetermined current while the compressor 3 is operating by the inverter 2, the voltage across the current shunt resistor 4 becomes high, and the photo power bra 5 is turned on, so that the overcurrent protection device is turned on. Notifies control unit 2 that has been activated. Then, when the overcurrent protection device operates, the control unit 2 turns off or decreases the output voltage of the inverter 2 to prevent the inverter 2 from being damaged by the output overcurrent.
- the operating current value varies depending on the temperature characteristics of the photocoupler 5, and as shown in FIG. 6, the operating current value increases as the ambient temperature decreases, and the operating current value increases as the ambient temperature increases. It has small temperature characteristics.
- the control unit 6 operates according to the flowchart of FIG. 2 to control the output voltage of the inverter 2.
- FIG. 2 first, when the process starts, the ambient temperature is detected by the temperature sensor 7 in step S1. Next, proceeding to step S2, the output voltage of the inverter 2 is selected according to the ambient temperature detected by the temperature sensor 7. Then, proceed to Step S3 Then, the output voltage selected in step S2 is output from the inverter 2 to drive the compressor 3.
- the ambient temperature detected by the temperature sensor 7 it is preferable to detect the temperature of electrical components (not shown), but the outside air temperature, the discharge pipe temperature of the compressor 3, the heat exchanger temperature, or the radiation fins It may be the temperature of (for the power transistor of the inverter).
- the output voltage of the inverter 2 is selected based on the temperature characteristics of the operating current value of the overcurrent protection device (shown in Fig. 6) by setting the inverter output voltage below the operating current value to the ambient temperature. It is determined in advance for each case. That is, the relationship between the inverter output voltage and the ambient temperature is made to be the same as the temperature characteristic of the operating current value of the overcurrent protection device. For example, as shown in FIG.
- the inverter output voltage may be determined so as to have a linear characteristic represented by a linear expression that approximates a curve indicating the relationship between the inverter output voltage and the ambient temperature, As shown in FIG. 3B, the inverter output voltage may be determined for each certain temperature range. In this manner, the inverter output voltage at the time of startup is set so that the input current of the inverter 2 is less than and near the operating current value of the overcurrent protection device at the ambient temperature detected by the temperature sensor 7. To determine.
- the inverter output voltage determined as described above may be output as it is when the compressor 3 is started, but as shown in FIG. 4, the inverter output voltage gradually increases from a voltage lower than the determined inverter output voltage. May be.
- the time for outputting the first voltage at the time of starting the compressor 3 is a time until the motor in the compressor 3 rotates, and therefore may be as short as about 10 O msec, but may be longer depending on the situation. Doing so is effective in coping with an increase in oil viscosity at the time of low-temperature start-up and liquid refrigerant accumulation.
- the inverter output voltage and the operating frequency have a linear relationship characteristic (hereinafter referred to as VF characteristic), and the inverter output voltage is determined according to the VF characteristic. Is done.
- the initial inverter output voltage is changed according to the ambient temperature, the difference between the VF characteristics and the above-mentioned VF characteristics is generated.As shown in Fig. 5, the inverter output voltage at the start-up frequency f1 depends on the ambient temperature. , B, and c, the above VF characteristics are converted to the inverter output voltage d at the frequency f 2 (outside the operation range of the compressor 3) and the inverter output voltage a, Switch to the line connecting b and c. This solves the difference between the inverter output voltage changed in accordance with the initial ambient temperature and the VF characteristic.
- the compressor unit of the present invention may be used not only in the air conditioner but also in other refrigerators.
- the inverter input current detected by the shunt resistor 4 has a pulse waveform
- the inverter output current flowing from the inverter 2 having a three-phase AC voltage output to the compressor 3 has an AC waveform.
- the peak value of the output current is almost the same as the peak value of the inverter input current of the pulse waveform detected by the shunt resistor 4. Based on this principle, the peak value of the motor current can be read by the shunt resistor 4.
- the shunt resistor 4 is provided on the negative electrode side of the inverter 2, but may be provided on the positive electrode side of the inverter to detect the inverter input current.
- an overcurrent protection device composed of the shunt resistor 4, the photocoupler 5, and the resistors R1 to R4 was used, but the overcurrent protection device is not limited to this. Overcurrent protection devices having different current value temperature characteristics may be used.
- the overcurrent protection was performed with the input current of the inverter 2 detected by the shunt resistor 4, but the current detection means was provided on the output side of the inverter, and the current was detected by the current detection means. Overcurrent protection may be performed with the inverter output current. In this embodiment, the current measurement on the positive side of the inverter has a large current value drift (fluctuation), and the current measurement on the output side of the inverter has a complicated detection circuit. Detected by.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Inverter Devices (AREA)
- Control Of Ac Motors In General (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03745976A EP1493925A4 (en) | 2002-04-10 | 2003-04-09 | COMPRESSOR UNIT AND COOLING DEVICE USING THIS UNIT |
JP2003582419A JP4175258B2 (ja) | 2002-04-10 | 2003-04-09 | 圧縮機ユニットおよびそれを用いた冷凍機 |
US10/504,877 US7134295B2 (en) | 2002-04-10 | 2003-04-09 | Compressor unit and refrigerator using the unit |
AU2003236004A AU2003236004B2 (en) | 2002-04-10 | 2003-04-09 | Compressor unit and refrigerator using the unit |
KR1020047013188A KR100594515B1 (ko) | 2002-04-10 | 2003-04-09 | 압축기 유닛 및 그것을 이용한 냉동기 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002108117 | 2002-04-10 | ||
JP2002-108117 | 2002-04-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003085265A1 true WO2003085265A1 (fr) | 2003-10-16 |
Family
ID=28786500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/004474 WO2003085265A1 (fr) | 2002-04-10 | 2003-04-09 | Groupe compresseur et refrigerateur utilisant un tel groupe |
Country Status (7)
Country | Link |
---|---|
US (1) | US7134295B2 (ja) |
EP (1) | EP1493925A4 (ja) |
JP (1) | JP4175258B2 (ja) |
KR (1) | KR100594515B1 (ja) |
CN (1) | CN100376853C (ja) |
AU (1) | AU2003236004B2 (ja) |
WO (1) | WO2003085265A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008149721A1 (ja) * | 2007-06-06 | 2008-12-11 | Sanden Corporation | 電動圧縮機の制御装置 |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7412842B2 (en) | 2004-04-27 | 2008-08-19 | Emerson Climate Technologies, Inc. | Compressor diagnostic and protection system |
US7275377B2 (en) | 2004-08-11 | 2007-10-02 | Lawrence Kates | Method and apparatus for monitoring refrigerant-cycle systems |
US8590325B2 (en) | 2006-07-19 | 2013-11-26 | Emerson Climate Technologies, Inc. | Protection and diagnostic module for a refrigeration system |
US20080216494A1 (en) | 2006-09-07 | 2008-09-11 | Pham Hung M | Compressor data module |
JP4939171B2 (ja) * | 2006-10-30 | 2012-05-23 | 三菱重工業株式会社 | 熱源機および熱源システム |
WO2008111976A2 (en) * | 2007-03-13 | 2008-09-18 | Carrier Corporation | Compressor reverse rotation of variable duration on start up |
US20090037142A1 (en) | 2007-07-30 | 2009-02-05 | Lawrence Kates | Portable method and apparatus for monitoring refrigerant-cycle systems |
US8393169B2 (en) | 2007-09-19 | 2013-03-12 | Emerson Climate Technologies, Inc. | Refrigeration monitoring system and method |
US8160827B2 (en) | 2007-11-02 | 2012-04-17 | Emerson Climate Technologies, Inc. | Compressor sensor module |
US9140728B2 (en) | 2007-11-02 | 2015-09-22 | Emerson Climate Technologies, Inc. | Compressor sensor module |
CN102193604B (zh) * | 2010-03-16 | 2014-03-26 | 鸿富锦精密工业(深圳)有限公司 | Cpu散热电路 |
US9285802B2 (en) | 2011-02-28 | 2016-03-15 | Emerson Electric Co. | Residential solutions HVAC monitoring and diagnosis |
US8964338B2 (en) * | 2012-01-11 | 2015-02-24 | Emerson Climate Technologies, Inc. | System and method for compressor motor protection |
US9480177B2 (en) | 2012-07-27 | 2016-10-25 | Emerson Climate Technologies, Inc. | Compressor protection module |
US9310439B2 (en) | 2012-09-25 | 2016-04-12 | Emerson Climate Technologies, Inc. | Compressor having a control and diagnostic module |
US9551504B2 (en) | 2013-03-15 | 2017-01-24 | Emerson Electric Co. | HVAC system remote monitoring and diagnosis |
US9803902B2 (en) | 2013-03-15 | 2017-10-31 | Emerson Climate Technologies, Inc. | System for refrigerant charge verification using two condenser coil temperatures |
WO2014144446A1 (en) | 2013-03-15 | 2014-09-18 | Emerson Electric Co. | Hvac system remote monitoring and diagnosis |
CA2908362C (en) | 2013-04-05 | 2018-01-16 | Fadi M. Alsaleem | Heat-pump system with refrigerant charge diagnostics |
US11728757B2 (en) | 2019-11-07 | 2023-08-15 | Carrier Corporation | System and method for controlling temperature inside electrical and electronics system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04313645A (ja) * | 1991-04-11 | 1992-11-05 | Toshiba Corp | 冷凍サイクル装置 |
JPH06193945A (ja) * | 1992-12-24 | 1994-07-15 | Matsushita Electric Ind Co Ltd | 空気調和機の制御装置 |
JP2000227074A (ja) * | 1999-02-04 | 2000-08-15 | Matsushita Electric Ind Co Ltd | 圧縮機の駆動制御方法と装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4179899A (en) * | 1977-06-24 | 1979-12-25 | Sawafuji Electric Co. Ltd. | Refrigerating system |
JPS62178832A (ja) * | 1986-02-03 | 1987-08-05 | Hitachi Ltd | インバ−タ付空気調和機の制御回路 |
US4893479A (en) * | 1987-03-20 | 1990-01-16 | Ranco Electronics Division | Compressor drive system |
CN2059977U (zh) * | 1989-11-18 | 1990-08-01 | 魏晓云 | 电冰箱定温复位式多功能电子温控器 |
JPH0513562A (ja) * | 1991-07-05 | 1993-01-22 | Hitachi Ltd | 駆動制御装置 |
CN2181660Y (zh) * | 1993-12-25 | 1994-11-02 | 唐山市普发电子技术开发公司 | 智能变频制冷装置 |
JP3327053B2 (ja) * | 1995-06-06 | 2002-09-24 | 株式会社デンソー | 空調装置 |
JPH1114124A (ja) * | 1997-06-20 | 1999-01-22 | Sharp Corp | 空気調和機 |
-
2003
- 2003-04-09 WO PCT/JP2003/004474 patent/WO2003085265A1/ja active Application Filing
- 2003-04-09 KR KR1020047013188A patent/KR100594515B1/ko not_active IP Right Cessation
- 2003-04-09 AU AU2003236004A patent/AU2003236004B2/en not_active Ceased
- 2003-04-09 EP EP03745976A patent/EP1493925A4/en not_active Withdrawn
- 2003-04-09 CN CNB038054396A patent/CN100376853C/zh not_active Expired - Fee Related
- 2003-04-09 US US10/504,877 patent/US7134295B2/en not_active Expired - Fee Related
- 2003-04-09 JP JP2003582419A patent/JP4175258B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04313645A (ja) * | 1991-04-11 | 1992-11-05 | Toshiba Corp | 冷凍サイクル装置 |
JPH06193945A (ja) * | 1992-12-24 | 1994-07-15 | Matsushita Electric Ind Co Ltd | 空気調和機の制御装置 |
JP2000227074A (ja) * | 1999-02-04 | 2000-08-15 | Matsushita Electric Ind Co Ltd | 圧縮機の駆動制御方法と装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1493925A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008149721A1 (ja) * | 2007-06-06 | 2008-12-11 | Sanden Corporation | 電動圧縮機の制御装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1493925A1 (en) | 2005-01-05 |
KR100594515B1 (ko) | 2006-06-30 |
US20050103036A1 (en) | 2005-05-19 |
JP4175258B2 (ja) | 2008-11-05 |
AU2003236004B2 (en) | 2008-06-19 |
KR20040088528A (ko) | 2004-10-16 |
EP1493925A4 (en) | 2008-09-10 |
JPWO2003085265A1 (ja) | 2005-08-11 |
CN1639465A (zh) | 2005-07-13 |
AU2003236004A1 (en) | 2003-10-20 |
US7134295B2 (en) | 2006-11-14 |
CN100376853C (zh) | 2008-03-26 |
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