CN102594258A - Solid-state pressure regulating controller of three-phase alternating-current fan - Google Patents
Solid-state pressure regulating controller of three-phase alternating-current fan Download PDFInfo
- Publication number
- CN102594258A CN102594258A CN2011104314269A CN201110431426A CN102594258A CN 102594258 A CN102594258 A CN 102594258A CN 2011104314269 A CN2011104314269 A CN 2011104314269A CN 201110431426 A CN201110431426 A CN 201110431426A CN 102594258 A CN102594258 A CN 102594258A
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- Prior art keywords
- circuit
- solid
- control signal
- phase alternating
- blower fan
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention provides a solid-state pressure regulating controller of a three-phase alternating-current fan and is composed by silicon controlled rectifiers. The solid-state pressure regulating controller comprises an input control circuit, a selection circuit, a soft-start circuit, a photoelectric isolating control module, a pulse modulation circuit, a silicon controlled rectifier output circuit, and a filter circuit, wherein the input control circuit can be controlled automatically through selectable control signals or manually through a potentiometer connected outside, so that the change of conduct angle of the silicon controlled rectifier is achieved, namely, stepless control of three-phase load voltage from zero to full voltage of grids is achieved. The solid-state pressure regulating controller combines three-phase potential detection, a phase-shift circuit and a trigger circuit with three groups of anti-parallel one-way silicon controlled rectifiers, an external synchronous transformer is not needed, selectable multiple control signals are provided; and a soft start function and an electric reactor assisting module are provided inside, therefore functions of open-phase protection, over-current protection, and overheat protection are achieved.
Description
Technical field
The present invention relates to the blower fan technical field, the solid-state voltage regulator controllers of particularly a kind of three-phase alternating current blower fan.
Background technology
The scope of application of blower fan is very wide, in industrial and mining enterprises, and the boiler air blast, smoke abatement and dust control, the ship ventilation cooling, grain-drying, the aircushion vehicle inflation, the wind-tunnel wind regime all be unable to do without blower fan; The large-scale place that people such as gymnasium concentrate, the air cooling effect of changing of blower fan can not be substituted especially.
The mode of speed regulation of blower fan has a variety of, the speed governing of mechanical type speed-changing draught fan, hydraulic torque converter speed governing, frequency converter timing.The occasion that they are used is variant, and performance and price is had nothing in common with each other; And the frequency converter timing performance is best, but price is the most expensive.
Summary of the invention
According in the existing industry for the user demand of blower fan, the present invention provides a kind of speed regulator that adopts controllable silicon to constitute, it has photoelectricity and isolates solid-state circuit, the soft start protective circuit, functions such as infinitely variable speeds, cost performance are quite high.
For reaching the object of the invention; The present invention proposes the solid-state voltage regulator controllers of a kind of three-phase alternating current blower fan, and the solid-state voltage regulator controllers of said three-phase alternating current blower fan comprises input control circuit, selects circuit, soft starting circuit, photoelectricity isolated controlling module, pulse modulated circuit, controllable silicon output circuit and filter circuit.Wherein, described input control circuit through can select control signal automatically control or external potentiometer manually control, reach and change thyristor operating angle and realize that promptly threephase load voltage is from 0 stepless adjustable to the electrical network full voltage.
Preferably, the described control signal of selecting is specially control signal direct voltage automatic control signal, electric current automatic control signal or external potentiometer manual control signal.
Said solid-state voltage regulator controllers of the present invention integrates triphasic potential detection, phase-shift circuit, circuits for triggering and three groups of inverse parallel one-way SCRs, does not need the external sync transformer, has selectable multi-control signal; Built-in soft start function, and have the reactor supplementary module, can realize open-phase protection, overcurrent protection and overheat protective function.
Description of drawings
Through the detailed description below in conjunction with accompanying drawing, aforesaid purpose, the feature and advantage with other of the present invention will become obvious.Wherein:
Shown in Figure 1 is the composition configuration diagram of the solid-state voltage regulator controllers of three-phase alternating current blower fan of the present invention;
Shown in Figure 2 is the schematic diagram of the solid-state voltage regulator controllers of three-phase alternating current blower fan of the present invention;
For the solid-state voltage regulator controllers of three-phase alternating current blower fan of the present invention three kinds shown in Figure 3 can be selected the control signal sketch map.
Embodiment
The composition configuration diagram of the solid-state voltage regulator controllers of three-phase alternating current blower fan of one embodiment of the invention as shown in Figure 1, the solid-state voltage regulator controllers of said three-phase alternating current blower fan comprise input control circuit, select circuit, soft starting circuit, photoelectricity isolated controlling module, pulse modulated circuit, controllable silicon output circuit and filter circuit.Wherein, described input control circuit through can select control signal automatically control or external potentiometer manually control, reach and change thyristor operating angle and realize that promptly threephase load voltage is from 0 stepless adjustable to the electrical network full voltage.The control signal selected sketch map as shown in Figure 3 is respectively the 4-20mA current controling signal from left to right; 1-5VDC, or 2-10VDC direct voltage automatic control signal, and external 10K potentiometer manual control signal.
The schematic diagram of the solid-state voltage regulator controllers of three-phase alternating current blower fan of the present invention as shown in Figure 2, it mainly comprises voltage regulating module and companion module.
Said solid-state voltage regulator controllers of the present invention integrates triphasic potential detection, phase-shift circuit, circuits for triggering and three groups of inverse parallel one-way SCRs, does not need the external sync transformer, has selectable multi-control signal; Built-in soft start function, and have the reactor supplementary module, can realize open-phase protection, overcurrent protection and overheat protective function.
The present invention is not limited to described embodiment, and those skilled in the art still can do some corrections or change, so rights protection scope of the present invention is as the criterion with claims restricted portion not breaking away from spirit of the present invention promptly openly in the scope.
Claims (5)
1. solid-state voltage regulator controllers of three-phase alternating current blower fan; It is characterized in that the solid-state voltage regulator controllers of said three-phase alternating current blower fan comprises input control circuit, selects circuit, soft starting circuit, photoelectricity isolated controlling module, pulse modulated circuit, controllable silicon output circuit and filter circuit; Wherein, described input control circuit through can select control signal automatically control or external potentiometer manually control, reach and change thyristor operating angle and realize that promptly threephase load voltage is from 0 stepless adjustable to the electrical network full voltage.
2. the solid-state voltage regulator controllers of preferred a kind of three-phase alternating current blower fan as claimed in claim 1 is characterized in that the described control signal of selecting is the direct voltage automatic control signal, electric current automatic control signal or external potentiometer manual control signal.
3. the solid-state voltage regulator controllers of preferred a kind of three-phase alternating current blower fan as claimed in claim 2 is characterized in that described direct voltage automatic control signal is 1-5VDC or 2-10VDC direct voltage automatic control signal.
4. the solid-state voltage regulator controllers of preferred a kind of three-phase alternating current blower fan as claimed in claim 2 is characterized in that described electric current automatic control signal is the 4-20mA current controling signal.
5. the solid-state voltage regulator controllers of preferred a kind of three-phase alternating current blower fan as claimed in claim 2 is characterized in that described potentiometer manual control signal is external 10K potentiometer manual control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104314269A CN102594258A (en) | 2011-12-20 | 2011-12-20 | Solid-state pressure regulating controller of three-phase alternating-current fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104314269A CN102594258A (en) | 2011-12-20 | 2011-12-20 | Solid-state pressure regulating controller of three-phase alternating-current fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102594258A true CN102594258A (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104314269A Pending CN102594258A (en) | 2011-12-20 | 2011-12-20 | Solid-state pressure regulating controller of three-phase alternating-current fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102594258A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109715408A (en) * | 2016-09-08 | 2019-05-03 | 惠普发展公司，有限责任合伙企业 | Printer drier monitor |
-
2011
- 2011-12-20 CN CN2011104314269A patent/CN102594258A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109715408A (en) * | 2016-09-08 | 2019-05-03 | 惠普发展公司，有限责任合伙企业 | Printer drier monitor |
| CN109715408B (en) * | 2016-09-08 | 2021-01-08 | 惠普发展公司，有限责任合伙企业 | Printer dryer monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |