CN109671249A - It is a kind of with temperature control self-protection and to be able to carry out the frequency converter of detection of electrical leakage - Google Patents
It is a kind of with temperature control self-protection and to be able to carry out the frequency converter of detection of electrical leakage Download PDFInfo
- Publication number
- CN109671249A CN109671249A CN201811449101.1A CN201811449101A CN109671249A CN 109671249 A CN109671249 A CN 109671249A CN 201811449101 A CN201811449101 A CN 201811449101A CN 109671249 A CN109671249 A CN 109671249A
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- China
- Prior art keywords
- frequency converter
- chip microcontroller
- detection
- leakage
- carry out
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- 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.)
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention, which provides, a kind of with temperature control self-protection and is able to carry out the frequency converter of detection of electrical leakage, including temperature sensor, single-chip microcontroller, frequency converter, leakage detector, fault alarm；Temperature sensor is mounted on shell of frequency converter shell, is transferred to single-chip microcomputer signal receiving end for detecting frequency converter running temperature, and by the temperature data of real-time monitoring；Single-chip microcomputer signal output end is electrically connected with frequency converter, for controlling the operation of frequency converter；Leakage detector is electrically connected with shell of frequency converter, is transferred to single-chip microcontroller for detecting whether occur leaky in frequency converter operational process, and by detection of electrical leakage parameter；Frequency converter of the invention has earth leakage detection functions, can operation circuit to frequency converter carry out detection of electrical leakage, when frequency converter running temperature exception, fault alarm automatic alarm and can show fault code convenient for Measuring error.
Description
Technical field
The present invention relates to converter technology fields, more particularly to one kind to have temperature control self-protection and be able to carry out electric leakage inspection
The frequency converter of survey.
Background technique
Frequency converter mainly by rectify (AC to DC), filtering, inversion (direct current become exchange), brake unit, driving unit,
The composition such as detection unit microprocessing unit.IGBT cut-offs to adjust the voltage of out-put supply and frequency, root frequency converter close to the inner portion
Supply voltage required for it is provided according to the actual needs of motor, and then achievees the purpose that energy conservation, speed regulation, in addition, frequency converter
There are also many defencive functions, such as overcurrent, over-voltage, overload protection.With the continuous improvement of industrial automatization, frequency conversion
Device also has been widely used.Freezing trimming machine the degree of automation currently on the market is poor, and control system is inconvenient.
At present in the control system of frequency converter, the PWM(Pulse Width Modulation that frequency converter control unit generates, pulse is wide
Degree modulation) trigger pulse by driving circuit control IGBT(Insulated Gate Bipolar Transistor, insulated gate
Bipolar junction transistor) power device high speed on and off, trigger signal pass through analog signal light-coupled isolation or optical fiber arteries and veins
Punching transmission, while the feedback signal inside power device feeds back control system also by the mode of simulation or optical fiber.
Inventor in the implementation of the present invention, has found current this controller architecture, and there are following several problems:
Using analog signal transmission, signal transmission vulnerable to interference, multiple power cells and joint conference make control unit and power cell it
Between line complexity dramatically increase, system stability reduces, and single power cell fault probably involved by line
The power cell operated normally to other.It although solves the isolation of forceful electric power light current using signal transmission through fiber and signal interference is asked
Topic, while feedback signal can not rapidly feed back bulk information also because of device speed problem.
Existing big-power transducer does not have earth leakage detection functions, and safety in utilization is poor.
Therefore, it invents a kind of with temperature control self-protection and to be able to carry out the frequency converter of detection of electrical leakage be very necessary.
Summary of the invention
For in the prior art, defect existing for frequency converter, a primary object of the present invention is that providing one kind has
Temperature control self-protection and the frequency converter for being able to carry out detection of electrical leakage.
In order to solve the above technical problems, there is temperature control self-protection the present invention provides one kind and be able to carry out detection of electrical leakage
Frequency converter, including temperature sensor, single-chip microcontroller, frequency converter, leakage detector, fault alarm；
Temperature sensor is mounted on shell of frequency converter shell, for detecting frequency converter running temperature, and by the temperature of real-time monitoring
Degree evidence is transferred to single-chip microcomputer signal receiving end；
Single-chip microcomputer signal output end is electrically connected with frequency converter, for controlling the operation of frequency converter；The negative input end of the single-chip microcontroller with
The output end of RC charge-discharge circuit connects, and the output end of the single-chip microcontroller is connect with singlechip interruption capture function end；The switch
The collector of pipe and the negative input end of single-chip microcontroller connect, and the emitter of the switching tube is connect with the ground terminal of RC charge-discharge circuit, should
The base stage of switching tube and the output end of single-chip microcontroller connect.Using a single-chip microcontroller, it is owned by along with most of single-chip microcontrollers
Disconnected capture function can be completed to sample analog signal.Well below one analog-digital converter of the price of single-chip microcontroller, because
The cost of this present apparatus is lower than traditional device, but sampling precision is also higher than the precision of common analog-digital converter.
Leakage detector is electrically connected with shell of frequency converter, electric leakage whether occurs now for detecting in frequency converter operational process
As, and detection of electrical leakage parameter is transferred to single-chip microcontroller；
Single-chip microcontroller carries out automatic alarm, and shows according to leakage detector, temperature sensor detection data control fault alarm
Fault code, to repair.
Preferably, the leakage detector has warning function of electric leakage.
Preferably, there is input touch display screen on the single-chip microcontroller.
Frequency converter of the invention has earth leakage detection functions, can operation circuit to frequency converter carry out detection of electrical leakage, when
When frequency converter running temperature exception, fault alarm automatic alarm and can show fault code convenient for Measuring error.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is frame diagram of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, and embodiments of the present invention include but is not limited to
The following example.
To achieve the goals above, The technical solution adopted by the invention is as follows:
As shown in Figure 1, this has temperature control self-protection and is able to carry out the frequency converter of detection of electrical leakage, including temperature sensor, list
Piece machine, frequency converter, leakage detector, fault alarm；
Temperature sensor is mounted on shell of frequency converter shell, for detecting frequency converter running temperature, and by the temperature of real-time monitoring
Degree evidence is transferred to single-chip microcomputer signal receiving end；
Single-chip microcomputer signal output end is electrically connected with frequency converter, for controlling the operation of frequency converter；
Leakage detector is electrically connected with shell of frequency converter, for detecting whether occur leaky in frequency converter operational process, and
Detection of electrical leakage parameter is transferred to single-chip microcontroller；
Single-chip microcontroller carries out automatic alarm, and shows according to leakage detector, temperature sensor detection data control fault alarm
Fault code, to repair, the leakage detector has warning function of electric leakage.On the single-chip microcontroller there is input to touch display
Screen.The negative input end of the single-chip microcontroller is connect with the output end of RC charge-discharge circuit, and output end and the singlechip interruption of the single-chip microcontroller are caught
Catch function end connection；The collector of the switching tube and the negative input end of single-chip microcontroller connect, the emitter and RC of the switching tube
The ground terminal of charge-discharge circuit connects, and the base stage of the switching tube and the output end of single-chip microcontroller connect.Using a single-chip microcontroller, add
The interruption capture function that most of single-chip microcontrollers are owned by can be completed to sample analog signal.The price of single-chip microcontroller is much
Lower than one analog-digital converter, therefore the cost of the present apparatus is lower than traditional device, but sampling precision is than common analog-to-digital conversion
The precision of device is also high.
Frequency converter of the invention has earth leakage detection functions, can operation circuit to frequency converter carry out detection of electrical leakage, when
When frequency converter running temperature exception, fault alarm automatic alarm and can show fault code convenient for Measuring error.
Using technical solutions according to the invention or those skilled in the art under the inspiration of technical solution of the present invention, design
Similar technical solution out, and reach above-mentioned technical effect, it is to fall into protection scope of the present invention.
Claims (3)
- With temperature control self-protection and the frequency converter of detection of electrical leakage is able to carry out 1. a kind of, which is characterized in that including temperature sensing Device, single-chip microcontroller, frequency converter, leakage detector, fault alarm；Temperature sensor is mounted on shell of frequency converter shell, for detecting frequency converter running temperature, and by the temperature of real-time monitoring Degree evidence is transferred to single-chip microcomputer signal receiving end；Single-chip microcomputer signal output end is electrically connected with frequency converter, for controlling the operation of frequency converter；Leakage detector is electrically connected with shell of frequency converter, for detecting whether occur leaky in frequency converter operational process, and Detection of electrical leakage parameter is transferred to single-chip microcontroller；The negative input end of the single-chip microcontroller is connect with the output end of RC charge-discharge circuit, the monolithic The output end of machine is connect with singlechip interruption capture function end；The collector of the switching tube and the negative input end of single-chip microcontroller connect It connects, the emitter of the switching tube is connect with the ground terminal of RC charge-discharge circuit, and the base stage of the switching tube and the output end of single-chip microcontroller connect It connects；Using a single-chip microcontroller, along with the interruption capture function that most of single-chip microcontrollers are owned by can be completed to analog signal It is sampled；Well below one analog-digital converter of the price of single-chip microcontroller, therefore the cost of the present apparatus is lower than traditional device, but samples The precision of the common analog-digital converter of ratio of precision is also high；Single-chip microcontroller carries out automatic alarm, and shows according to leakage detector, temperature sensor detection data control fault alarm Fault code, to repair.
- 2. there is temperature control self-protection as described in claim 1 and be able to carry out the frequency converter of detection of electrical leakage, which is characterized in that institute Leakage detector is stated with warning function of electric leakage.
- 3. there is temperature control self-protection as described in claim 1 and be able to carry out the frequency converter of detection of electrical leakage, which is characterized in that institute Stating on single-chip microcontroller has input touch display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811449101.1A CN109671249A (en) | 2018-11-30 | 2018-11-30 | It is a kind of with temperature control self-protection and to be able to carry out the frequency converter of detection of electrical leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811449101.1A CN109671249A (en) | 2018-11-30 | 2018-11-30 | It is a kind of with temperature control self-protection and to be able to carry out the frequency converter of detection of electrical leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109671249A true CN109671249A (en) | 2019-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811449101.1A Pending CN109671249A (en) | 2018-11-30 | 2018-11-30 | It is a kind of with temperature control self-protection and to be able to carry out the frequency converter of detection of electrical leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109671249A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208799A (en) * | 2019-12-31 | 2020-05-29 | 博睿斯重工股份有限公司 | Clean lifting and intelligent carrying system and management method |
| CN113012402A (en) * | 2021-02-22 | 2021-06-22 | 台州市菱士达电器有限公司 | Intelligent monitoring system and intelligent monitoring method for frequency converter |
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| CN101063693A (en) * | 2006-04-28 | 2007-10-31 | 上海森昌电气科技有限公司 | Singlechip signal sampling apparatus without module converter and sampling method thereof |
| US20100283512A1 (en) * | 2009-05-11 | 2010-11-11 | General Electric Company | Fast detection of contact status with ac wetting voltage using ratiometric approach |
| JP6058213B1 (en) * | 2015-03-11 | 2017-01-11 | 三菱電機株式会社 | Converter and power converter |
| CN207300297U (en) * | 2017-06-07 | 2018-05-01 | 郑州工商学院 | A kind of weak current engineering intelligent detection equipment |
| CN207490736U (en) * | 2017-05-02 | 2018-06-12 | 庄钟兰 | A kind of frequency converter intelligent control box |
| CN208143070U (en) * | 2018-01-25 | 2018-11-23 | 东莞市华科金盾智能科技有限公司 | A kind of stability height has the frequency converter of detection function |
-
2018
- 2018-11-30 CN CN201811449101.1A patent/CN109671249A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063693A (en) * | 2006-04-28 | 2007-10-31 | 上海森昌电气科技有限公司 | Singlechip signal sampling apparatus without module converter and sampling method thereof |
| US20100283512A1 (en) * | 2009-05-11 | 2010-11-11 | General Electric Company | Fast detection of contact status with ac wetting voltage using ratiometric approach |
| JP6058213B1 (en) * | 2015-03-11 | 2017-01-11 | 三菱電機株式会社 | Converter and power converter |
| CN207490736U (en) * | 2017-05-02 | 2018-06-12 | 庄钟兰 | A kind of frequency converter intelligent control box |
| CN207300297U (en) * | 2017-06-07 | 2018-05-01 | 郑州工商学院 | A kind of weak current engineering intelligent detection equipment |
| CN208143070U (en) * | 2018-01-25 | 2018-11-23 | 东莞市华科金盾智能科技有限公司 | A kind of stability height has the frequency converter of detection function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208799A (en) * | 2019-12-31 | 2020-05-29 | 博睿斯重工股份有限公司 | Clean lifting and intelligent carrying system and management method |
| CN113012402A (en) * | 2021-02-22 | 2021-06-22 | 台州市菱士达电器有限公司 | Intelligent monitoring system and intelligent monitoring method for frequency converter |
| CN113012402B (en) * | 2021-02-22 | 2022-07-15 | 台州市菱士达电器有限公司 | Intelligent monitoring system and intelligent monitoring method for frequency converter |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190423 |
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| RJ01 | Rejection of invention patent application after publication |