CN102418803B - Multi-stage output type pneumatic-to-current conversion valve - Google Patents
Multi-stage output type pneumatic-to-current conversion valve Download PDFInfo
- Publication number
- CN102418803B CN102418803B CN201110270875.XA CN201110270875A CN102418803B CN 102418803 B CN102418803 B CN 102418803B CN 201110270875 A CN201110270875 A CN 201110270875A CN 102418803 B CN102418803 B CN 102418803B
- Authority
- CN
- China
- Prior art keywords
- electrode terminal
- pneumoelectric
- sliding
- multistage output
- fixing elastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a multi-stage output type pneumatic-to-current conversion valve, which consists of a gas pressure signal receiving unit, a displacement control unit, a sliding electrode terminal unit and a fixed electrode terminal unit. A sliding electrode terminal in a valve body is driven to be displaced by gas pressure which is taken as a control source signal, and is sequentially connected with and disconnected from a plurality of electrodes on a fixed electrode terminal to fulfill the aim of staged running of pneumatic-to-current conversion direct control electromechanical equipment. The product can be used as a core element of a plurality of pneumatic-to-current conversion controller, and is particularly applied to processes for control over air-fuel ratios of civil and industrial burners, automatic regulation control over the mechanical air supply of a gas water heater and an industrial boiler, and the like.
Description
Technical field:
The present invention relates to gas burner combustion-supporting air air quantity proportional control pneumoelectric conversion and control technology, particularly a kind of multistage output type pneumoelectric changing valve.
Background technique:
Pneumatic-to-current converter is usually used in automatic regulating system that pneumatic unit combination instrument and electrodynamic element instrument be used in conjunction.Some measured parameter, due to the needs on producing or for the consideration in safety, need to convert the air pressure signal of pneumatic transmitter output to direct current signal as control signal with pneumatic-to-current converter, realizes Mechatronics control.
In pneumoelectric conversion and control, common technology has two large classes:
The first adopts pressure transmitter to realize.
Adopt pressure transmitter measurement air pressure signal, and be converted to the standard signal output of 20-40mA or 1-5V, deliver to electronic circuit and carry out computing comparison, then realize the adjusting control to regulator, record instrumentation etc. by all kinds of logic controls.Generally be applied to the process control field of industrial system.Such technological means technique is integrated comparatively complicated, automatically control cost higher, generally several thousand yuan of even hundreds thousand of units easily, are more suitable for the routine control of the pneumoelectric conversion of large scale industry automation or equipment, are not suitable at civilian goods or require the application of lower-cost place.
The first adopts pressure switch to realize.
Pressure switch is also for air pressure signal being converted to automatically controlled core parts.This series products belongs to two-position switch structure, and gas pressure is adjusted into a setting value, according to the comparison of operation air pressure and setting value, realizes the on off control to electrical equipment.Generally be applied in the safety control field of electrical equipment.Such technological means function is too simple, is all generally the corresponding contact output of an air pressure signal, in the time of needs multilevel control, several combining need to be installed and could realize.And owing to having selected contact type structural design, contact needs spraying plating precious metal, often there will be the failure phenomenons such as contact oxidation adhesion, the pressure switch reliability that operating pressure is lower is lower.
Patent [multiple-channel gas-electric converter] number of patent application 89103841.8, need to input Multi-path air pressure standard signal, completes control action by multicircuit relay switch combination, is that this class technology is implemented loaded down with trivial details representative.
In a word, for the multistage operation control of miniature electrical equipment in gas utensil, all there is larger defect in prior art.
Maximum defect is, or needs to select comparatively expensive pressure transmitter, need to configure follow-up comparatively complicated logic electricity level design, could realize signal comparison, amplifies and be transferred to actuator; Select multiple pressure switch combinations to combine and could realize with complicated control circuit design.It is excessive that these two kinds of modes take volume, and cost is too high, is unfavorable for the Integrated design of product.
At gas burner design field, in order to improve the effect of energy-saving and emission-reduction, need the strict air fuel ratio of controlling.Based on manufacture cost control and reliability control, select above-mentioned two class technological methods to realize pneumoelectric conversion and control and all have certain defect.
Summary of the invention:
Object of the present invention is just to overcome above-mentioned the deficiencies in the prior art, and a kind of multistage output type pneumoelectric changing valve is provided, and this changing valve is simple in structure, easy to use, low cost of manufacture, and is conducive to the Integrated design of product.
As above design, technological scheme of the present invention is:
A kind of multistage output type pneumoelectric changing valve, comprise upper and lower casing, it is characterized in that: on upper shell, have gas pressure signal tube interface, the displacement control unit being made up of balance film, supporting disk and Compress Spring is housed in upper shell, supporting disk is arranged under balance film, Compress Spring is arranged on supporting disk bottom, and balance film and upper shell form a sealed gas chamber; The sliding electrode terminal unit being made up of sliding valve core and multiple sliding electrode terminal is equipped with on lower shell body top, wherein sliding valve core is arranged in lower shell body, multiple sliding electrode terminals are embedded on sliding valve core, between each sliding electrode terminal or lead to or set up respectively break-make relation; The fixed electrode terminal unit being made up of fixed spool and multiple fixing elastic electrode terminal is equipped with in lower shell body bottom, wherein fixes elastic electrode terminal and is embedded on fixed spool; It between above-mentioned sliding electrode terminal and fixing elastic electrode terminal, is non-contact type bell and spigot frame.
Above-mentioned sliding electrode terminal is at least 3.
The quantity of above-mentioned fixing elastic electrode terminal is identical with the quantity of sliding electrode terminal, insulated from each other between each fixing elastic electrode terminal.
Above-mentioned fixing elastic electrode terminal is built-in bellmouth elastic electrode and the assembly parts to external terminal, is plug type structure or leading-out wire structure to external terminal.
It between above-mentioned fixing elastic electrode terminal and sliding electrode terminal, is non-contact type bell and spigot frame.
Above-mentioned fixing elastic electrode terminal outer meeting resistance is integrated, forms multistage output pneumoelectric rheostatic controller.
The external valve electrode of above-mentioned fixing elastic electrode terminal is integrated, forms multistage output pneumoelectric frequency-variable controller.
Above-mentioned fixing elastic electrode terminal ABAP Adapter electrode is integrated, forms multistage output pneumoelectric voltage transformation controller.
Above-mentioned fixing elastic electrode terminal with turn to electrode integrated, form multistage output pneumoelectric steering controller.
The present invention has following advantage and good effect:
1, select gas pressure to drive the structural design of sliding electrode terminal, by design and the adjusting of spring, realized the corresponding variation relation one by one of the displacement of sliding electrode terminal and gas pressure.
2, select spigot and socket type elastic electrode structural design, needn't use precious metal, realized equally the reliable keying of electricity level, improved reliability and the Economy of product.
3, selected multistage output design, made the multistage operation control of one-level gas pressure source signal driver electric equipment more convenient.According to technique needs, can design arbitrarily the closed logical relation of sliding electrode terminal and fixed electrode terminal, make product apply and become possibility in more electrical equipment control technique.Therefore, product of the present invention has good market prospects.
A purposes of the present invention is the air fuel ratio control technique for gas cooker, is used in particular for the structural design of the air-fuel ratio regulation controller of a kind of method for controlling stability of air-fuel ratio of gas cooker described in patent 201110251998.9.
Brief description of the drawings:
Fig. 1 design principle figure of the present invention.
Fig. 2 project organization plan of the present invention.
Embodiment:
As shown in Figure 1, the present invention by 1, gas pressure signal element 2, displacement control unit 3, sliding electrode terminal unit 4, four parts of fixed electrode terminal unit forms.
As shown in Figure 2: upper shell 5 and lower shell body 6 can be made by metallic material or nonmetallic material, and an interface that can be connected with gas pressure signal element 1 is set on upper shell 5, and this interface is generally made quick fixation structure, also can make the form being threaded.The displacement control unit 2 being made up of balance film 7, supporting disk 8 and Compress Spring 9 is housed in upper shell, and supporting disk is arranged under balance film, and Compress Spring is arranged on supporting disk bottom, and balance film and upper shell form a sealed gas chamber.
The sliding electrode terminal unit 3 being made up of sliding valve core 10 and multiple sliding electrode terminal 11 is equipped with on lower shell body 6 tops, sliding valve core 10 selects hard non-metallic material to make as bakelite, and get out the hole of some different depths, select brass wire material to make sliding electrode terminal 11, according to control need to do several or tens, and need it to be all communicated with or to divide into groups to be communicated with according to controlling, be then embedded in together on sliding valve core, form slip electrical terminal unit.The fixed electrode terminal unit 4 being made up of fixed spool and multiple fixing elastic electrode terminal 12 is equipped with in lower shell body 6 bottoms, wherein fixing elastic electrode terminal is embedded on fixed spool, fixed spool selects hard non-metallic material to make, and is drilled with hole identical with sliding electrode terminal number, that be slightly larger than sliding electrode terminal diameter on it.Fixing elastic electrode terminal 12 selects spring copper wire to make, and the electrode slices 13 that external connection is used weld in one end, then embed wholly fixed spool one by one, formation fixed electrode terminal unit.
It between above-mentioned sliding electrode terminal and fixing elastic electrode terminal, is non-contact type bell and spigot frame.
Above-mentioned fixing elastic electrode terminal is can outer meeting resistance integrated, forms multistage output pneumoelectric rheostatic controller, can realize the control function that electromechanical equipment automatically controlled signal changes according to pressure change.Above-mentioned fixing elastic electrode terminal is can external rectified current level integrated, forms multistage output pneumoelectric frequency-variable controller, can realize the electromechanical equipment electricity control function that signal changes according to pressure change frequently.Above-mentioned fixing elastic electrode terminal can ABAP Adapter electricity level integrated, form multistage output pneumoelectric voltage transformation controller, can realize the control function that electromechanical equipment power supply voltage changes according to pressure change.Above-mentioned fixing elastic electrode terminal can with turn to electricity level integrated, form multistage output pneumoelectric steering controller, can realize the control function of electromechanical equipment reversible steering according to pressure change.
Working procedure of the present invention is: air pressure signal receiving element 1 receives pressure signal by pressure signal pipe, the variation that displacement control unit 2 is responded to gas pressure is converted to corresponding offset variable, ordering about lower slider electrode terminal unit 3 at displacement control unit 2 changes with the relative position of fixed electrode terminal unit 4, make multiple electrodes that sliding electrode terminal unit 3 is inlayed from fixed electrode terminal unit 4 produce multistage different break-make relation above, thereby produce the circuit control multistage output corresponding with gas pressure change.
Claims (9)
1. a multistage output type pneumoelectric changing valve, comprise upper and lower casing, it is characterized in that: on upper shell, have gas pressure signal tube interface, the displacement control unit being made up of balance film, supporting disk and Compress Spring is housed in upper shell, supporting disk is arranged under balance film, Compress Spring is arranged on supporting disk bottom, and balance film and upper shell form a sealed gas chamber; The sliding electrode terminal unit being made up of sliding valve core and multiple sliding electrode terminal is equipped with on lower shell body top, wherein sliding valve core is arranged in lower shell body, multiple sliding electrode terminals are embedded on sliding valve core, between each sliding electrode terminal or lead to or set up respectively break-make relation; The fixed electrode terminal unit being made up of fixed spool and multiple fixing elastic electrode terminal is equipped with in lower shell body bottom, wherein fixes elastic electrode terminal and is embedded on fixed spool; It between above-mentioned sliding electrode terminal and fixing elastic electrode terminal, is non-contact type bell and spigot frame.
2. the multistage output type pneumoelectric of one according to claim 1 changing valve, is characterized in that: above-mentioned sliding electrode terminal is at least 3.
3. the multistage output type pneumoelectric of one according to claim 1 changing valve, is characterized in that: the quantity of above-mentioned fixing elastic electrode terminal is identical with the quantity of sliding electrode terminal, insulated from each other between each fixing elastic electrode terminal.
4. the multistage output type pneumoelectric of one according to claim 1 changing valve, is characterized in that: above-mentioned fixing elastic electrode terminal is built-in bellmouth elastic electrode and the assembly parts to external terminal, is plug type structure or leading-out wire structure to external terminal.
5. the multistage output type pneumoelectric of one according to claim 1 changing valve, is characterized in that: between above-mentioned fixing elastic electrode terminal and sliding electrode terminal, be non-contact type bell and spigot frame.
6. the multistage output type pneumoelectric of one according to claim 1 changing valve, is characterized in that: above-mentioned fixing elastic electrode terminal outer meeting resistance is integrated, forms multistage output pneumoelectric rheostatic controller.
7. the multistage output type pneumoelectric of one according to claim 1 changing valve, is characterized in that: the external valve electrode of above-mentioned fixing elastic electrode terminal is integrated, forms multistage output pneumoelectric frequency-variable controller.
8. the multistage output type pneumoelectric of one according to claim 1 changing valve, is characterized in that: above-mentioned fixing elastic electrode terminal ABAP Adapter electrode is integrated, forms multistage output pneumoelectric voltage transformation controller.
9. the multistage output type pneumoelectric of one according to claim 1 changing valve, is characterized in that: above-mentioned fixing elastic electrode terminal with turn to electrode integrated, form multistage output pneumoelectric steering controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110270875.XA CN102418803B (en) | 2011-09-15 | 2011-09-15 | Multi-stage output type pneumatic-to-current conversion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110270875.XA CN102418803B (en) | 2011-09-15 | 2011-09-15 | Multi-stage output type pneumatic-to-current conversion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102418803A CN102418803A (en) | 2012-04-18 |
| CN102418803B true CN102418803B (en) | 2014-11-05 |
Family
ID=45943363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110270875.XA Active CN102418803B (en) | 2011-09-15 | 2011-09-15 | Multi-stage output type pneumatic-to-current conversion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418803B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB716731A (en) * | 1952-01-17 | 1954-10-13 | Mini Of Supply | Improvements in or relating to mechano-electronic transducers |
| US3929058A (en) * | 1973-10-15 | 1975-12-30 | Keystone Int | Valve actuator |
| CN2307972Y (en) * | 1997-06-11 | 1999-02-17 | 陈曼斯 | Water driven safety valve with ignition lock |
| CN101495869A (en) * | 2005-11-30 | 2009-07-29 | 麻省理工学院 | Pathogen detection biosensor |
| CN101576607A (en) * | 2009-06-10 | 2009-11-11 | 北京健翔顺鑫科技有限公司 | Method for detecting nickel-hydrogen battery separator wet electric resistance and device thereof |
| CN201496615U (en) * | 2009-08-12 | 2010-06-02 | 烟台石珍电子有限公司 | Quick-connecting electromagnetic water valve |
-
2011
- 2011-09-15 CN CN201110270875.XA patent/CN102418803B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB716731A (en) * | 1952-01-17 | 1954-10-13 | Mini Of Supply | Improvements in or relating to mechano-electronic transducers |
| US3929058A (en) * | 1973-10-15 | 1975-12-30 | Keystone Int | Valve actuator |
| CN2307972Y (en) * | 1997-06-11 | 1999-02-17 | 陈曼斯 | Water driven safety valve with ignition lock |
| CN101495869A (en) * | 2005-11-30 | 2009-07-29 | 麻省理工学院 | Pathogen detection biosensor |
| CN101576607A (en) * | 2009-06-10 | 2009-11-11 | 北京健翔顺鑫科技有限公司 | Method for detecting nickel-hydrogen battery separator wet electric resistance and device thereof |
| CN201496615U (en) * | 2009-08-12 | 2010-06-02 | 烟台石珍电子有限公司 | Quick-connecting electromagnetic water valve |
Non-Patent Citations (2)
| Title |
|---|
| 李绪文.薄膜电子式电-气转换器技术研究.《科技资讯》.2006,(第1期),第3-5页. * |
| 薄膜电子式电-气转换器技术研究;李绪文;《科技资讯》;20060131(第1期);第3-5页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102418803A (en) | 2012-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202075642U (en) | Gas water heater control circuit capable of adapting to ambient temperature | |
| CN105212272A (en) | A kind of constant voltage exports electronic cigarette and electronic cigarette chip | |
| CN104378872B (en) | Light emitting diode system and voltage conversion device | |
| CN102418803B (en) | Multi-stage output type pneumatic-to-current conversion valve | |
| TWM381217U (en) | Inductive charging system capable of chagring automatically | |
| CN202421343U (en) | Device for measuring conductivity of metal and semiconductor solid | |
| CN201708965U (en) | Power calibrating circuit of electromagnetic oven | |
| CN203504787U (en) | Electromagnetic heating circuit and electric pressure cooker | |
| CN202118987U (en) | Electric heater capable of adjusting output power automatically | |
| CN205793483U (en) | The LED drive circuit that multiple output mode is arranged is realized by dial-up dish | |
| CN209232899U (en) | A kind of temperature indicating device | |
| CN202033308U (en) | Building material noncombustibility test control system | |
| CN204496312U (en) | A kind of constant temperature oven control circuit | |
| CN202600524U (en) | Temperature control circuit | |
| CN103853212A (en) | System for controlling heat pump electronic product aging room temperature | |
| CN203414873U (en) | Digital-display relay voltage stabilizer | |
| CN201892417U (en) | Digital electric stove for heating diffusion pumps | |
| CN101392546B (en) | Frequency conversion voltage transformation water supply installation according to period of time | |
| CN204949525U (en) | Constant voltage output electron cigarette device | |
| CN2881741Y (en) | Digital automatic AC constant-current source | |
| CN203192363U (en) | LED detection device having wireless control system | |
| CN203276788U (en) | LED detection device | |
| CN201167181Y (en) | Socket for monitoring mobile electric energy | |
| CN104090199B (en) | Device for simulating poor power source contact phenomenon in use process of electric appliance | |
| CN209372938U (en) | Detection circuit of battery voltage and induction cooker pot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99 Patentee after: China public works North China design studies Zong Yuan company limited Address before: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99 Patentee before: North China Municipal Engineering Design & Research Institute |