CN103727308A - Digital control electric water heater - Google Patents
Digital control electric water heater Download PDFInfo
- Publication number
- CN103727308A CN103727308A CN201310595748.6A CN201310595748A CN103727308A CN 103727308 A CN103727308 A CN 103727308A CN 201310595748 A CN201310595748 A CN 201310595748A CN 103727308 A CN103727308 A CN 103727308A
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- CN
- China
- Prior art keywords
- water heater
- chip microcomputer
- control electric
- electric water
- digital
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
Abstract
The invention provides a digital control electric water heater. The digital control electric water heater comprises a water faucet body and a water flow control switch, and further comprises a flow sensor, an operation amplifier, a D/A convertor, a single-chip microcomputer and a flyback-type convertor. The flow sensor is arranged on a water inlet of a water supply pipe and used for outputting water flow pressure signals, the operation amplifier is used for conducting power amplification on the pressure signals, the D/A convertor is used for converting the pressure signals from a simulation mode to a digital mode, the single-chip microcomputer is used for receiving the pressure signals in the digital mode, comparing the pressure signals in the digital mode with a reference value in an internal register and outputting PWM signals with the pulse width capable of being modulated, a switch pipe of the flyback-type convertor is used for receiving the PWM signals to enable the PWM signals to be used as turn-on and turn-off control signals, and the output end of the flyback-type convertor is connected to a heating pipe.
Description
Technical field
The present invention relates to electricity field, refer to especially a kind of digital control electric water heater.
Background technique
Electric hot water tap is also called hot water tap or fast hot water tap, comprise faucet body and flow control switch, in faucet body, be provided with heating chamber and electrical equipment control chamber, with sealing plate, separate, electrical equipment control is provided with heater circuit in chamber, in heating chamber, be provided with heating pipe, heating pipe power is generally at 2-3KW, and 3-5 can heat hot water second.Existing electric hot water tap control circuit is simple, and during water flow increases, water temperature can obviously decline, and cannot realize constant temperature water supply.
Summary of the invention
The present invention proposes a kind of digital control electric water heater, cannot constant temperature water supply problem while having solved existing electric hot water tap water flow increases.
Technological scheme of the present invention is achieved in that
A kind of digital control electric water heater, comprises faucet body and flow control switch, also comprises: be arranged on the flow transducer of supply water pipe water inlet, output water flow pressure signal; Operational amplifier, carries out power amplification by described pressure signal; D/A converter, is converted to digital form by described pressure signal from analog form; Single-chip microcomputer, receives the pressure signal of described digital form, compares with the reference value in internal register, and the pwm signal that output pulse width is adjustable; The switching tube of inverse excitation type converter receives described pwm signal as the control signal of opening, turn-offing, and the output terminal of inverse excitation type converter is connected to heating pipe.
Alternatively, described single-chip microcomputer is 51 series monolithics.
Alternatively, described single-chip microcomputer is dsp processor.
Alternatively, described single-chip microcomputer is arm processor.
The invention has the beneficial effects as follows: by single-chip microcomputer, current size is analyzed, the power of output control signal control heating pipe, realizes the thermostatically control of output current.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the control block diagram of the digital control electric water heater of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment who obtains under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the digital control electric water heater of one of the present invention, comprises faucet body and flow control switch, also comprises: be arranged on the flow transducer 10 of supply water pipe water inlet, output water flow pressure signal; Operational amplifier 20, carries out power amplification by described pressure signal; D/A converter 30, is converted to digital form by described pressure signal from analog form; Single-chip microcomputer 40, receives the pressure signal of described digital form, compares with the reference value in internal register, and the pwm signal that output pulse width is adjustable; The switching tube of inverse excitation type converter 50 receives described pwm signal as the control signal of opening, turn-offing, and the output terminal of inverse excitation type converter is connected to heating pipe 60.
Preferably, described single-chip microcomputer is 51 series monolithics, dsp processor or arm processor.
When the swing angle of flow control switch becomes large, more current flow through electric water heater, and the pulse width of single-chip microcomputer output signal increases, and it is large that the output power of inverse excitation type converter becomes, and it is large that the heating power of electric heating tube becomes, and the temperature of output current maintains steady temperature.
The present invention analyzes current size by single-chip microcomputer, and the power of output control signal control heating pipe, realizes the thermostatically control of output current.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a digital control electric water heater, comprises faucet body and flow control switch, it is characterized in that, also comprises:
Be arranged on the flow transducer of supply water pipe water inlet, output water flow pressure signal;
Operational amplifier, carries out power amplification by described pressure signal;
D/A converter, is converted to digital form by described pressure signal from analog form;
Single-chip microcomputer, receives the pressure signal of described digital form, compares with the reference value in internal register, and the pwm signal that output pulse width is adjustable;
The switching tube of inverse excitation type converter receives described pwm signal as the control signal of opening, turn-offing, and the output terminal of inverse excitation type converter is connected to heating pipe.
2. digital control electric water heater as claimed in claim 1, is characterized in that, described single-chip microcomputer is 51 series monolithics.
3. digital control electric water heater as claimed in claim 1, is characterized in that, described single-chip microcomputer is dsp processor.
4. digital control electric water heater as claimed in claim 1, is characterized in that, described single-chip microcomputer is arm processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310595748.6A CN103727308A (en) | 2013-11-25 | 2013-11-25 | Digital control electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310595748.6A CN103727308A (en) | 2013-11-25 | 2013-11-25 | Digital control electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103727308A true CN103727308A (en) | 2014-04-16 |
Family
ID=50451521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310595748.6A Pending CN103727308A (en) | 2013-11-25 | 2013-11-25 | Digital control electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103727308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697176A (en) * | 2013-12-04 | 2015-06-10 | 青岛润鑫伟业科贸有限公司 | Method for digitally controlling water temperature of electric water heater |
| CN107062619A (en) * | 2017-03-02 | 2017-08-18 | 佛山利物浦电子科技有限公司 | A kind of anti-dry burning device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831622A (en) * | 1972-02-24 | 1974-08-27 | Thyssen Niederrhein Ag | Closure for sponge iron dispenser |
| CN2428913Y (en) * | 2000-04-27 | 2001-05-02 | 上海国际整流器贸易有限公司 | Inverse-excitation type switch power-supply |
| CN201363484Y (en) * | 2009-02-21 | 2009-12-16 | 楼文彪 | Digital control constant temperature insulation electric heat tap |
| CN202361651U (en) * | 2011-12-12 | 2012-08-01 | 莆田市清华园电器发展有限公司 | Constant-temperature instant electric water heater |
| CN103049014A (en) * | 2012-12-06 | 2013-04-17 | 段争光 | High-temperature circulator |
| CN103040356A (en) * | 2012-12-17 | 2013-04-17 | 青岛鲁强模具有限公司 | Water dispenser |
-
2013
- 2013-11-25 CN CN201310595748.6A patent/CN103727308A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831622A (en) * | 1972-02-24 | 1974-08-27 | Thyssen Niederrhein Ag | Closure for sponge iron dispenser |
| CN2428913Y (en) * | 2000-04-27 | 2001-05-02 | 上海国际整流器贸易有限公司 | Inverse-excitation type switch power-supply |
| CN201363484Y (en) * | 2009-02-21 | 2009-12-16 | 楼文彪 | Digital control constant temperature insulation electric heat tap |
| CN202361651U (en) * | 2011-12-12 | 2012-08-01 | 莆田市清华园电器发展有限公司 | Constant-temperature instant electric water heater |
| CN103049014A (en) * | 2012-12-06 | 2013-04-17 | 段争光 | High-temperature circulator |
| CN103040356A (en) * | 2012-12-17 | 2013-04-17 | 青岛鲁强模具有限公司 | Water dispenser |
Non-Patent Citations (2)
| Title |
|---|
| 叶治政等: "《开关稳压电源》", 31 October 1989, 高等教育出版社 * |
| 王洪军: "《单片机原理及应用》", 28 February 2009, 山东大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697176A (en) * | 2013-12-04 | 2015-06-10 | 青岛润鑫伟业科贸有限公司 | Method for digitally controlling water temperature of electric water heater |
| CN107062619A (en) * | 2017-03-02 | 2017-08-18 | 佛山利物浦电子科技有限公司 | A kind of anti-dry burning device |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |