CN201008090Y - Anti-electricity device for electric water heater with time-sharing detection function - Google Patents
Anti-electricity device for electric water heater with time-sharing detection function Download PDFInfo
- Publication number
- CN201008090Y CN201008090Y CNU2007201068261U CN200720106826U CN201008090Y CN 201008090 Y CN201008090 Y CN 201008090Y CN U2007201068261 U CNU2007201068261 U CN U2007201068261U CN 200720106826 U CN200720106826 U CN 200720106826U CN 201008090 Y CN201008090 Y CN 201008090Y
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- CN
- China
- Prior art keywords
- circuit
- ground wire
- water heater
- electric water
- chip microcomputer
- 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 - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 title abstract 5
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- 230000000703 anti-shock Effects 0.000 claims description 9
- 230000001131 transforming effect Effects 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
一种具有分时检测功能的电热水器防电装置，涉及一种电热水器防电装置，其特征是具有零地线和火地线电位差检测装置，分别与单片机输入端相连接。零地线和火地线电位差检测装置由整流电路、稳压电路和运放电路组成，分别跨接在零地线和火地线之间。整流电路包括变压电路和二极管桥式整流电路；运放电路由运放集成电路组成。单片机输出端与开关执行电路相连接，开关执行电路由开关管和继电器组成，继电器的触点分别与火线、零线和地线的进出端相连接。单片机输入端具有分时检测功能，单片机输出端具有极性转换功能，确保在电热水器地线带电和不可靠接地情况下，切断火线、零线和地线，确保在电热水器火线、零线的输入极性相反时进行极性转换。
An anti-electricity device for an electric water heater with a time-sharing detection function relates to an anti-electricity device for an electric water heater, which is characterized in that it has a potential difference detection device for a zero-ground wire and a fire-ground wire, which are respectively connected to the input terminals of a single-chip microcomputer. The detection device for the potential difference between the zero ground wire and the fire ground wire is composed of a rectifier circuit, a voltage stabilizing circuit and an operational amplifier circuit, which are respectively connected between the zero ground wire and the fire ground wire. The rectification circuit includes a transformer circuit and a diode bridge rectification circuit; the op amp is composed of an op amp integrated circuit. The output end of the single-chip microcomputer is connected with the switch execution circuit, and the switch execution circuit is composed of a switch tube and a relay, and the contacts of the relay are respectively connected with the input and output terminals of the live wire, the neutral wire and the ground wire. The input terminal of the single-chip microcomputer has the function of time-sharing detection, and the output terminal of the single-chip microcomputer has the function of polarity conversion, so as to ensure that the live wire, neutral wire and ground wire are cut off when the ground wire of the electric water heater is charged and unreliably grounded, so as to ensure that the live wire and neutral wire of the electric water heater are disconnected. Polarity inversion is performed when the input polarity is reversed.
Description
Technical field
The utility model relates to a kind of anti-shock device for electric water heater, and particularly a kind of anti-shock device for electric water heater with time sharing detecting function belongs to the single-chip microcomputer control technology field.
Background technology
The utility model is before the applying date, monolithic processor controlled electric heater do not have the polar switching function and under ground wire electrification and unreliable ground connection situation to the personal safety protection function.
Summary of the invention
The purpose of this utility model provides a kind of anti-shock device for electric water heater with time sharing detecting function.
The technical scheme that its technical problem that solves the utility model adopts is: comprise the single-chip microcomputer imput output circuit; It is characterized in that having zero grounding potential difference detector set and fiery ground wire potential difference detecting device, be connected with the single-chip microcomputer input respectively.Zero grounding potential difference detector set and fiery ground wire potential difference detecting device are made up of rectification circuit, voltage stabilizing circuit and discharge circuit, are connected across respectively between Zero-liue and the fiery ground wire.Rectification circuit comprises transforming circuit and diode bridge rectifier circuit; Discharge circuit is made up of the amplifier integrated circuit.The single-chip microcomputer output is connected with the switch executive circuit, and the switch executive circuit is made up of switching tube and relay, and the contact of relay is connected with the in-out end of live wire, zero line and ground wire respectively.The warning luminous tube is connected with the single-chip microcomputer output with the warning sound communication device.
The beneficial effects of the utility model are that the single-chip microcomputer input has time sharing detecting function and the single-chip microcomputer output has the polar switching function; guarantee under electric heater ground wire electrification and unreliable ground connection situation; cut off live wire L, zero line N and ground wire E, play the safeguard protection effect.Guarantee to carry out when input polarity at electric heater live wire L, zero line N is opposite polar switching.Its single-chip microcomputer can be shared the appearance source with former electric heater control circuit single-chip microcomputer, with single anti-shock device for electric water heater device mutually specific energy save cost.
Description of drawings
The utility model is described in further detail below by accompanying drawing.
Accompanying drawing 1 is an electrical schematic diagram of the present utility model.
Embodiment
Consult Fig. 1.Single-chip microcomputer is the PIC16C54 8-bit microcontroller of U.S. Microchip company among the figure.
Zero grounding potential difference detector set and fiery ground wire potential difference detecting device are connected with single-chip microcomputer input I/O (1), I/O (2) respectively.Ground wire potential difference detecting device and fiery ground wire potential difference detecting device are made up of rectification circuit, voltage stabilizing circuit and discharge circuit respectively, are connected across respectively between Zero-liue NE and the fiery ground wire LE.Rectification circuit comprises transforming circuit and diode bridge rectifier circuit; Discharge circuit is made up of amplifier integrated circuit AJ1, AJ2 respectively.
Single-chip processor i/o output I/O (3), I/O (4), I/O (5) are connected with the switch executive circuit, the switch executive circuit is made up of switching tube G1, G2, G3 and relay J 1, J2, J3, and the contact of relay is connected with the in-out end of ground wire E with live wire L, zero line N respectively.Warning luminous tube D is connected with single-chip microcomputer output I/O (6), I/O (7) with warning sound communication device SP.
Claims (4)
1. the anti-shock device for electric water heater with time sharing detecting function comprises the single-chip microcomputer imput output circuit; It is characterized in that having zero grounding potential difference detector set and fiery ground wire potential difference detecting device, be connected with the single-chip microcomputer input respectively.
2. the anti-shock device for electric water heater with time sharing detecting function according to claim 1, it is characterized in that: zero grounding potential difference detector set and fiery ground wire potential difference detecting device are made up of rectification circuit, voltage stabilizing circuit and discharge circuit, be connected across respectively between Zero-liue and the fiery ground wire, rectification circuit comprises transforming circuit and diode bridge rectifier circuit; Discharge circuit is made up of the amplifier integrated circuit.
3. the anti-shock device for electric water heater with time sharing detecting function according to claim 1, it is characterized in that: the single-chip microcomputer output is connected with the switch executive circuit, the switch executive circuit is made up of switching tube and relay, and the contact of relay is connected with the in-out end of live wire, zero line and ground wire respectively.
4. the anti-shock device for electric water heater with time sharing detecting function according to claim 1 is characterized in that: the warning luminous tube is connected with the single-chip microcomputer output with the warning sound communication device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201068261U CN201008090Y (en) | 2007-02-16 | 2007-02-16 | Anti-electricity device for electric water heater with time-sharing detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201068261U CN201008090Y (en) | 2007-02-16 | 2007-02-16 | Anti-electricity device for electric water heater with time-sharing detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008090Y true CN201008090Y (en) | 2008-01-16 |
Family
ID=39004039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201068261U Expired - Fee Related CN201008090Y (en) | 2007-02-16 | 2007-02-16 | Anti-electricity device for electric water heater with time-sharing detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008090Y (en) |
-
2007
- 2007-02-16 CN CNU2007201068261U patent/CN201008090Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080116 |