CN201060219Y - Immediately heating water heater multiple groups heating wire power testing apparatus - Google Patents
Immediately heating water heater multiple groups heating wire power testing apparatus Download PDFInfo
- Publication number
- CN201060219Y CN201060219Y CNU2007201491843U CN200720149184U CN201060219Y CN 201060219 Y CN201060219 Y CN 201060219Y CN U2007201491843 U CNU2007201491843 U CN U2007201491843U CN 200720149184 U CN200720149184 U CN 200720149184U CN 201060219 Y CN201060219 Y CN 201060219Y
- Authority
- CN
- China
- Prior art keywords
- heater strip
- water heater
- loop
- heater
- heating wire
- 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.)
- Expired - Lifetime
Links
- 239000008236 heating water Substances 0.000 title claims description 11
- 238000010438 heat treatment Methods 0.000 title abstract description 16
- 239000003990 capacitor Substances 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 9
- 230000008054 signal transmission Effects 0.000 claims description 5
- 230000003750 conditioning effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 230000001429 stepping effect Effects 0.000 description 1
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- Control Of Resistance Heating (AREA)
Abstract
The utility model discloses a multi-unit heating wire power examining device of an instantaneous water heater, which belongs to the household appliance technical filed, and provides a simple and reliable multi-unit heating wire power examining device of the instantaneous water heater. The utility model includes a singlechip system, a current mutual inductor connected to a heating wire loop, and a signal transmitting circuit. The utility model is characterized in that the current mutual inductor is serially connected to the common end loop of a heating wire, the output end of which is connected with a resistor, a signal processing loop composed of a capacitor and the input port of the singlechip form a signal transmitting loop. A photoelectric coupling providing in-connecting signals is connected to the two ends of each heating wire, the output end of the photoelectric coupling and the input port of the singlechip form a signal transmitting loop. The utility model simplifies the structure, lowers the cost, and improves the performance correspondingly. The utility model can be used in the instantaneous water heater provided with a singlechip system.
Description
Technical field
The utility model discloses a kind of immediately heating water heater and organize the heater strip power detection device more.Belong to the home appliance technical field.
Background technology
Before the utility model was made, the general employing organized the heating of heater strip steppings more in immediately heating water heater, and the input control of heater strip is finished by user's manual operation.Display screen should show which root heater strip uses, and will show current power.
Usually detect the method for heater strip, the one, adopt 3 current transformers to detect the input situation of 3 heater strips respectively, this method is simple and reliable, but structure is numerous and diverse, the cost height; The 2nd, 3 methods that photoelectrical coupler detects of using are arranged in the practical application, i.e. every heater strip two ends photoelectrical coupler in parallel, photoelectrical coupler is by a high-power current-limiting resistance current limliting, though this method cost is low, unreliable.When heater strip opened circuit, both end voltage existed, so optocoupler is understood conducting, thought heater strip in operate as normal, but in fact heater strip opens circuit less than work.
Summary of the invention
The utility model provides a kind of simple and reliable immediately heating water heater to organize the heater strip power detection device at the deficiency of prior art more.
The technical solution of the utility model is: be serially connected in the heater strip common port loop with a current transformer, can detect the general power of heater strip reliably.Again the heater strip power designs is become stepped specification (as 1 kilowatt, 2 kilowatts, 4 kilowatts or 5 kilowatts), according to the performance number that current transformer records, judging has that root heater strip to work.In addition, can also insert photoelectrical coupler at every heater strip two ends, the access signal is provided, support microprocessor is discerned the access situation of heater strip.
When detecting heating power is 1 kilowatt hour, illustrate that power is 1 kilowatt heater strip input, when detecting heating power is 2 kilowatt hours, illustrate that power is 2 kilowatts heater strip input, when detecting heating power is 3 kilowatt hours, illustrate that power is two heater strip inputs of 1 kilowatt and 2 kilowatts, when detecting heating power is 4 kilowatt hours, illustrate that power is 4 kilowatts heater strip input, when detecting heating power is 5 kilowatt hours, illustrate that power is two heater strip inputs of 1 kilowatt and 4 kilowatts, when detecting heating power is 6 kilowatt hours, illustrating that power is two heater strip inputs of 2 kilowatts and 4 kilowatts, is 7 kilowatt hours when detecting heating power, illustrates that power is that three heater strips all drop into.
Re-use optocoupler and detect the heater strip both end voltage.When there is voltage at two ends, illustrate that the user has dropped into this root heater strip, and if power is not inconsistent with it, illustrate that then heater strip opens circuit, the indication of can directly reporting to the police.
Below introduce structure of the present utility model in detail, a kind of simple and reliable immediately heating water heater is organized the heater strip power detection device more, comprise Single Chip Microcomputer (SCM) system, insert heater strip current in loop mutual inductor and signal circuit, it is characterized in that current transformer is serially connected in the heater strip common port loop, its output terminal connects the signal conditioning circuit of resistor, capacitor composition and the input port of single-chip microcomputer constitutes signal transmission loop.
The power of several heater strips adopts stairstepping to distribute.
Preferred 1 kilowatt, 2 kilowatts, 4 kilowatts or 5 kilowatts of the power of the heater strip that stairstepping distributes.
Provide access flashlight electric coupler every heater strip two ends access, the output terminal of photoelectrical coupler and the input port of single-chip microcomputer constitute signal transmission loop.
During the utility model work, current transformer, photoelectrical coupler are handled it according to master routine by Single Chip Microcomputer (SCM) system, and are demonstrated testing result simultaneously to the Single Chip Microcomputer (SCM) system output detection signal, report to the police in good time.
The utility model has the advantages that to simplify the structure, reduced cost, the corresponding raising of performance.Can in being housed, use the immediately heating water heater of Single Chip Microcomputer (SCM) system.
Description of drawings
Fig. 1 is a structure electrical schematic diagram of the present utility model,
Fig. 2 is the structure electrical schematic diagram of embodiment 2,
Fig. 3 is the structure electrical schematic diagram of embodiment 3,
Fig. 4 single-chip microcomputer is handled master routine figure.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
Embodiment 1: comprise Single Chip Microcomputer (SCM) system, insert heater strip current in loop mutual inductor and signal circuit, it is characterized in that current transformer is serially connected in the heater strip common port loop, its output terminal connects the signal conditioning circuit of resistor, capacitor composition and the input port of single-chip microcomputer constitutes signal transmission loop.1 kilowatt, 2 kilowatts, 4 kilowatts of heater strip power selection utilize a current transformer L1 just can detect the heating wire works situation.And can tell which root heater strip has come into operation.
Embodiment 2:
Whether on the basis of embodiment 1, the heater strip two ends have increased optocoupler U1, U2, U3, detect heater strip two ends making alive situation simultaneously, with the actual heating wire works situation that current transformer detects, can also judge heater strip and open circuit.
Embodiment 3
The diode of the protection optocoupler among the embodiment 2 also can be in parallel with the optocoupler luminous end, but direction is opposite, can protect optocoupler equally.
Originally half-wave rectification is adopted in current transformer output, also can be changed to full-wave rectification, and this moment, capacitor C 1 can reduce capacity.
Claims (4)
1. an immediately heating water heater is organized the heater strip power detection device more, comprise Single Chip Microcomputer (SCM) system, insert heater strip current in loop mutual inductor and signal circuit, it is characterized in that current transformer is serially connected in the heater strip common port loop, its output terminal connects the signal conditioning circuit of resistor, capacitor composition and the input port of single-chip microcomputer constitutes signal transmission loop.
2. organize the heater strip power detection device according to the described immediately heating water heater of claim 1 more, it is characterized in that the power of described several heater strips adopts stairstepping to distribute.
3. organize the heater strip power detection device according to the described immediately heating water heater of claim 1 more, it is characterized in that preferred 1 kilowatt, 2 kilowatts, 4 kilowatts or 5 kilowatts of the power of the heater strip that described stairstepping distributes.
4. organize the heater strip power detection device according to the described immediately heating water heater of claim 1 more, it is characterized in that providing access flashlight electric coupler every heater strip two ends access, the output terminal of photoelectrical coupler and the input port of single-chip microcomputer constitute signal transmission loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201491843U CN201060219Y (en) | 2007-05-18 | 2007-05-18 | Immediately heating water heater multiple groups heating wire power testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201491843U CN201060219Y (en) | 2007-05-18 | 2007-05-18 | Immediately heating water heater multiple groups heating wire power testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060219Y true CN201060219Y (en) | 2008-05-14 |
Family
ID=39408701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201491843U Expired - Lifetime CN201060219Y (en) | 2007-05-18 | 2007-05-18 | Immediately heating water heater multiple groups heating wire power testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060219Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796001A (en) * | 2020-07-13 | 2020-10-20 | 宏辉磁电科技(安徽)有限公司 | Automatic alarm system for breakage of stick of sintering furnace |
-
2007
- 2007-05-18 CN CNU2007201491843U patent/CN201060219Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796001A (en) * | 2020-07-13 | 2020-10-20 | 宏辉磁电科技(安徽)有限公司 | Automatic alarm system for breakage of stick of sintering furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |