CN101187518A - Control device for switch electrical source driven stepping valve for refrigeration system - Google Patents
Control device for switch electrical source driven stepping valve for refrigeration system Download PDFInfo
- Publication number
- CN101187518A CN101187518A CNA2007101151916A CN200710115191A CN101187518A CN 101187518 A CN101187518 A CN 101187518A CN A2007101151916 A CNA2007101151916 A CN A2007101151916A CN 200710115191 A CN200710115191 A CN 200710115191A CN 101187518 A CN101187518 A CN 101187518A
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- China
- Prior art keywords
- valve
- power supply
- control device
- stepper
- switching power
- Prior art date
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- Granted
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- 238000005057 refrigeration Methods 0.000 title claims description 20
- 238000001914 filtration Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000013519 translation Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
- Control Of Stepping Motors (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a controlling device for a switch power supply driving stepping valve which is applied to a refrigerating system, which comprises a switch power supply, a controlling device and a step valve, wherein the switch power supply provides electric energy to the controlling device and the step valve, the controlling device is connected with the step valve which is driven by a motor, a rotating signal is transferred to a step motor by the control device according to an input signal, and a stay position is rotated by the step motor to define a conducting state of each valve port of the step valve. The device has the advantages of simple structure, stable performance, strong anti-interference capability and energy saving and the like.
Description
Technical field
The present invention relates to the control device of refrigerant flow direction in the refrigeration system.
Background technology
At present, in domestic and international many circularly coolings equipment, the control device of refrigerant flow direction comprises: power supply, controller and bistable electromagnetic valve, power supply is controller and bistable electromagnetic valve power supply, and bistable electromagnetic valve adopts the half-wave Continuity signal of alternating current 220V voltage to switch the conducting state of valve port, and bistable electromagnetic valve is because reasons in structure control method complexity, the cost height, the circuit volume is big, and is subject to disturb poor stability.Because the bistable valve poor anti jamming capability needs timed sending to keep the conducting state that signal keeps valve port at a certain valve port conducting control procedure middle controller, causes the waste of the energy.
Summary of the invention
The present invention is directed to the control device of refrigerant flow direction in the prior art, use bistable electromagnetic valve to have the control method complexity, the valve port conducting state is subject to disturb, need timed sending to keep the conducting state that signal keeps valve port, cause the defective of energy waste, provide a kind of Switching Power Supply to drive the control device of stepper valve, this device has simple in structure, and the advantage of external interference is controlled, do not allowed to be subject to the valve port state easily.
The technical solution that the present invention is directed to above-mentioned defective employing is:
Be applied in the control device of the Switching Power Supply driving stepper valve on the refrigeration system, it comprises: Switching Power Supply, controller and stepper valve, Switching Power Supply provides electric energy for controller and stepper valve, controller is connected with stepper valve, stepper valve is driven by stepper motor, controller sends turn signal according to input signal to stepper motor, rotates the position that stops by stepper motor, the conducting state of each valve port of definition stepper valve.
Above-mentioned stepper motor adopts the four phase eight beat PM Claw-pole stepping motors, and the rotor of stepper motor drives the conducting state that slide block changes valve port.
Above-mentioned control device also comprises temperature collecting cell, and temperature collecting cell is imported controller with analog signal.
Above-mentioned control device also comprises the driving amplifying unit, drives amplifying unit and is arranged between controller and the stepper motor, drive amplifying unit controller is sent the turn signal amplification to stepper motor, and then the driving stepper motor rotates.
Above-mentioned Switching Power Supply comprises: power management chip, current rectifying and wave filtering circuit, high frequency transformer and feedback circuit, it is the power management chip power supply that current rectifying and wave filtering circuit is transformed to direct current with alternating current, and power management chip is by the PWM dutycycle of the feedback voltage adjustment output of monitoring feedback circuit.
Above-mentioned power management chip is a Fairchild FSDM0265 power management chip.
Above-mentioned controller adopts the main control chip with AD translation function.
Above-mentioned driving amplifying unit is a Darlington transistor.
Above-mentioned controller adopts the MC68HC908 chip.
Beneficial effect of the present invention:
1, the stepper motor of stepper valve is the four phase eight beat PM Claw-pole stepping motors, its rotor drives the duty that slide block changes valve outlet port, realize the change of refrigerant flow direction in the refrigeration system, because the latching characteristics of stepper motor, make that the control device performance is more reliable and more stable, strong interference immunity need not send and keep the state that signal keeps valve port, energy efficient.The conversion of stepper valve state need not be carried out zero passage detection, and not only control method is simple, and has solved the matching problem of valve and control panel, is more convenient for applying.
2, Switching Power Supply is selected Fairchild FSDM0265 power management chip for use, and self-protection modules such as overload protection, overtemperature protection, under-voltage protection that it is inner integrated have reduced the design of peripheral circuit to greatest extent, have improved the reliability of control device.When the stepper valve valve switched, Switching Power Supply can moment provide enough energy supplies, guaranteed that stepper motor accurately, rotate reliably; When not needing energy after the valve switching is finished, Switching Power Supply provides very little standby current, makes quiescent dissipation lower, energy savings.
The cost of materials consumed was low when 3, stepper valve and Switching Power Supply were made, and particularly copper product consumption is few, and cost is low, and this stepper valve can replace the bistable electromagnetic valve of present use fully at present; The stepper valve volume is little, helps the installation in refrigerator, avoids pipeline to interfere, and is convenient to the operative employee various parts are installed.Stepper valve adopts the safe voltage of 12V to drive, and need not the design of secure context, and when stepper valve was changed in addition, the test noise had the little advantage of noise about 40 decibels at the 15cm place.
Description of drawings
Fig. 1 drives the control device theory diagram of stepper valve for Switching Power Supply;
Fig. 2 drives the control device electrical schematic diagram of stepper valve for Switching Power Supply.
The present invention is described in detail below in conjunction with accompanying drawing:
The specific embodiment
In conjunction with Fig. 1, Fig. 2, be applied in the control device of the Switching Power Supply driving stepper valve on the refrigeration system, it comprises: Switching Power Supply 1, temperature collecting cell 2, controller 3, driving amplifying unit 4 and stepper valve 5.
Switching Power Supply 1 comprises: Fairchild FSDM0265 power management chip 101, current rectifying and wave filtering circuit 102, high frequency transformer 103 and feedback circuit 104, it is the power management chip power supply that current rectifying and wave filtering circuit 102 is transformed to direct current with alternating current, and power management chip is adjusted the PWM dutycycle of output voltage by the feedback voltage of monitoring feedback circuit 104.
The magnitude of voltage of ordering with MC68HC908 chip 23 pins monitoring A is that example describes this control device below: the MC68HC908 chip is by judging the temperature value of 23 pin input voltage value correspondences, if this temperature value is higher than the upper limit of setting value, need select A and send the refrigerating fluid refrigeration, then 10 of the MC68HC908 chip, 11,12,13 pins are exported corresponding stepper motor turn signal, after the amplifying unit 4 of overdriving amplifies, the driving stepping motor rotor rotates, the rotor banding movable slider will be corresponding with the A place the valve port conducting, this moment, A place refrigerating fluid began to flow, and the A place is carried out refrigeration cool-down; The temperature value of ordering as A is lower than setting value following, and the MC68HC908 chip sends control signal in limited time, and the rotor banding movable slider is closed the valve port corresponding with A place, and A place refrigerating fluid stops to flow at this moment.
The MC68HC908 chip continues to monitor the magnitude of voltage of each point like this, and judges that whether this place needs cooling, just puts corresponding valve port conducting with this when needing cooling, the refrigerating fluid at this place is flowed, cooling reaches setting value down in limited time, and the valve port of closing this place makes refrigerating fluid stop to flow.The temperature that guarantees each point of going round and beginning again like this remains in the target zone.
Fairchild FSDM0265 power management chip 101 passes through the feedback voltage of monitoring feedback circuit 104 and adjusts output voltage, and when the stepper valve valve switched, Switching Power Supply 1 can provide enough energy supplies moment, guarantees that stepper motor is accurate, rotates reliably; After the valve switching was finished, Switching Power Supply 1 provided very little standby current, makes quiescent dissipation lower, energy savings.
The above-mentioned Switching Power Supply that is applied on the refrigeration system drives the control device of stepper valve, is applicable to many cycle refrigeration systems such as refrigerator, refrigerator, showcase, air-conditioning.
Claims (10)
1. be applied in the control device of the Switching Power Supply driving stepper valve on the refrigeration system, it comprises: Switching Power Supply, controller and stepper valve, Switching Power Supply provides electric energy for controller and stepper valve, it is characterized in that: controller is connected with stepper valve, stepper valve is driven by stepper motor, controller sends turn signal according to input signal to stepper motor, rotates the position that stops by stepper motor, the conducting state of each valve port of definition stepper valve.
2. the Switching Power Supply that is applied on the refrigeration system according to claim 1 drives the control device of stepper valve, it is characterized in that: described stepper motor adopts the four phase eight beat PM Claw-pole stepping motors, and the rotor of stepper motor drives the conducting state that slide block changes valve port.
3. the Switching Power Supply that is applied on the refrigeration system according to claim 1 and 2 drives the control device of stepper valve, and it is characterized in that: described control device also comprises temperature collecting cell, and temperature collecting cell is imported controller with analog signal.
4. the Switching Power Supply that is applied on the refrigeration system according to claim 3 drives the control device of stepper valve, it is characterized in that: described control device also comprises the driving amplifying unit, driving amplifying unit is arranged between controller and the stepper motor, drive amplifying unit controller is sent the turn signal amplification to stepper motor, and then drive the stepper motor rotation.
5. according to claim 1 or the 4 described control device that are applied in the Switching Power Supplies driving stepper valve on the refrigeration system, it is characterized in that: described Switching Power Supply comprises: power management chip, current rectifying and wave filtering circuit, high frequency transformer and feedback circuit, it is the power management chip power supply that current rectifying and wave filtering circuit is transformed to direct current with alternating current, and power management chip is by the PWM dutycycle of the feedback voltage adjustment output of monitoring feedback circuit.
6. the Switching Power Supply that is applied on the refrigeration system according to claim 5 drives the control device of stepper valve, and it is characterized in that: described power management chip is a Fairchild FSDM0265 power management chip.
7. according to claim 1 or the 6 described control device that are applied in the Switching Power Supplies driving stepper valve on the refrigeration system, it is characterized in that: described controller adopts the main control chip with AD translation function.
8. the Switching Power Supply that is applied on the refrigeration system according to claim 4 drives the control device of stepper valve, and it is characterized in that: described driving amplifying unit is a Darlington transistor.
9. the Switching Power Supply that is applied on the refrigeration system according to claim 7 drives the control device of stepper valve, and it is characterized in that: described driving amplifying unit is a Darlington transistor.
10. the Switching Power Supply that is applied on the refrigeration system according to claim 9 drives the control device of stepper valve, it is characterized in that: described controller adopts the MC68HC908 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101151916A CN101187518B (en) | 2007-12-14 | 2007-12-14 | Control device for switch electrical source driven stepping valve for refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101151916A CN101187518B (en) | 2007-12-14 | 2007-12-14 | Control device for switch electrical source driven stepping valve for refrigeration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101187518A true CN101187518A (en) | 2008-05-28 |
| CN101187518B CN101187518B (en) | 2013-01-02 |
Family
ID=39480014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101151916A Expired - Fee Related CN101187518B (en) | 2007-12-14 | 2007-12-14 | Control device for switch electrical source driven stepping valve for refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101187518B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675542A (en) * | 2013-12-06 | 2014-03-26 | 四川长虹电器股份有限公司 | Automatic detection system of electric changeover valve of refrigerator |
| CN107783628A (en) * | 2016-08-26 | 2018-03-09 | 瑞昱半导体股份有限公司 | Voltage and frequency adjusting device, System on Chip/SoC and voltage and frequency adjusting method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6672089B2 (en) * | 2000-10-12 | 2004-01-06 | Lg Electronics Inc. | Apparatus and method for controlling refrigerating cycle of refrigerator |
| CN2535630Y (en) * | 2002-04-12 | 2003-02-12 | 湖南力合科技发展有限公司 | Multi-way flow-pat switch-over valve |
| CN2567415Y (en) * | 2002-08-04 | 2003-08-20 | 海尔集团公司 | Automatic control tee valve |
| CN100339658C (en) * | 2002-10-23 | 2007-09-26 | 上海日立电器有限公司 | Digital intelligent flow distribution controller |
| CN2840505Y (en) * | 2005-08-15 | 2006-11-22 | 刘卫军 | Switch power module |
| CN100582535C (en) * | 2005-11-25 | 2010-01-20 | 浙江三花制冷集团有限公司 | Electric switch valve and refrigerating cycle for freezing refrigerator |
| CN201138111Y (en) * | 2007-12-14 | 2008-10-22 | 青岛澳柯玛股份有限公司 | Control device for stepping valve for refrigeration system |
-
2007
- 2007-12-14 CN CN2007101151916A patent/CN101187518B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675542A (en) * | 2013-12-06 | 2014-03-26 | 四川长虹电器股份有限公司 | Automatic detection system of electric changeover valve of refrigerator |
| CN103675542B (en) * | 2013-12-06 | 2016-06-01 | 四川长虹电器股份有限公司 | Automatic detection system of electric changeover valve of refrigerator |
| CN107783628A (en) * | 2016-08-26 | 2018-03-09 | 瑞昱半导体股份有限公司 | Voltage and frequency adjusting device, System on Chip/SoC and voltage and frequency adjusting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101187518B (en) | 2013-01-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: AUCMA CO., LTD. Free format text: FORMER NAME: QINGDAO AOKEMA CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 266510 No. 315, Bay Road, Qingdao economic and Technological Development Zone, Qingdao, Shandong Patentee after: AUCMA Co.,Ltd. Address before: 266510 No. 315, Bay Road, Qingdao economic and Technological Development Zone, Qingdao, Shandong Patentee before: Qingdao Aucma Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 |