CN201352238Y - Automatic test system for reliability of resistance heater - Google Patents
Automatic test system for reliability of resistance heater Download PDFInfo
- Publication number
- CN201352238Y CN201352238Y CNU2008201448087U CN200820144808U CN201352238Y CN 201352238 Y CN201352238 Y CN 201352238Y CN U2008201448087 U CNU2008201448087 U CN U2008201448087U CN 200820144808 U CN200820144808 U CN 200820144808U CN 201352238 Y CN201352238 Y CN 201352238Y
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- CN
- China
- Prior art keywords
- resistance heater
- electric resistance
- stabilized voltage
- power supply
- relay
- 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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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to an automatic test system for the reliability of a resistance heater, which is characterized by comprising a stabilized voltage power supply, a connecting cable, a programmable logic controller (PLC), a counter, a relay, a data acquisition instrument, an electromagnetic valve, a sensor and a tool test bed. The PLC, the counter, the relay and the data acquisition instrument are integrated inside the stabilized voltage power supply; the resistance heater and the electromagnetic valve are connected to the stabilized voltage power supply in parallel through the connecting cable; the data acquisition instrument is connected to the sensor on the resistance heater through the connecting cable; and the resistance heater is arranged on the tool test bed. The utility model adopts the structures such as the PLC and the like, not only can control the connection and disconnection time sequence of the stabilized voltage power supply, but also can automatically output the test results after the test is finished, thereby saving the time and manpower resources and ensuring the developing advancement of parts.
Description
Technical field
The utility model relates to the automatic pilot system of a kind of electric resistance heater reliability.
Background technology
At present, increasingly extensive along with diesel applications, its cold starting performance also becomes the problem that vast diesel engine user is concerned about gradually, electric resistance heater formula preheating device is the novel engine preheating device, has efficiency of heating surface height, energy-conserving and environment-protective, be convenient to characteristics such as maintenance, because its special Electric heating can not cause the phenomenon of " robbing oxygen " when engine start, therefore be widely used in the vehicle of highlands simultaneously.Though the application prospect of electric resistance heater is very extensive, this part reliability automatic evaluation device is not arranged at present as yet, only can rely on artificial testing, not only waste manpower, but also wasted a large amount of test periods, be difficult to guarantee development progress.
Summary of the invention
The utility model provides a kind of detection precise control, the automatic pilot system of the reliable electric resistance heater reliability of experimental performance for solving the technical matters that exists in the known technology.
The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is:
The automatic pilot system of a kind of electric resistance heater reliability is characterized in that: it comprises stabilized voltage supply, stube cable, Programmable Logic Controller PLC, counter, relay, data collecting instrument, solenoid valve, sensor and frock testing table; Programmable Logic Controller PLC, counter, relay and data collecting instrument are integrated in stabilized voltage supply inside, and electric resistance heater and solenoid valve are connected on the stabilized voltage supply with parallel way by stube cable; Data collecting instrument is connected to sensor on the electric resistance heater by stube cable, is equipped with electric resistance heater on the frock testing table.
The utility model can also adopt following technical measures:
It also is provided with air compressor and nozzle.
Described data collecting instrument is integrated in power supply inside, can with the PC communication.
Advantage and the good effect that the utlity model has are: since in the stabilized power source internal configurations of auto switching be used for the Programmable Logic Controller PLC of control counter and relay, this Programmable Logic Controller PLC is to magnitude of voltage, current value and break-make sequential are set, and this sequential can be reproduced by the round-robin form, utilize the normal open solenoid control that pressurized air is introduced when dump simultaneously, when power work, cut off, thereby make the fail-test robotization, accuracy more, not only saved manpower, and owing to can test by twenty four hours, therefore save a large amount of test periods, guaranteed the development progress of part.In addition, the utlity model has simple in structurely, cost is low, is easy to advantages such as popularization.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, the automatic pilot system of a kind of electric resistance heater reliability is characterized in that: it comprises stabilized voltage supply, stube cable, Programmable Logic Controller PLC, counter, relay, data collecting instrument, solenoid valve, sensor, frock testing table; Programmable Logic Controller PLC, counter, relay and data collecting instrument are integrated in stabilized voltage supply inside, and electric resistance heater and solenoid valve are connected on the stabilized voltage supply with parallel way by stube cable; Data collecting instrument is connected to sensor on the electric resistance heater by stube cable, is equipped with electric resistance heater on the frock testing table.It also is provided with air compressor and nozzle.Described data collecting instrument is integrated in power supply inside, can with the PC communication.
Stabilized voltage supply is connected the electric resistance heater two ends, auto switching function by stabilized voltage supply, the electric resistance heater two ends are applied voltage, electric current automatically, automatically cut off voltage, the electric current at electric resistance heater two ends behind the required time, place the Programmable Logic Controller PLC of stabilized voltage supply inside that magnitude of voltage, current value and break-make sequential are set.After configuring needed magnitude of voltage, current value, ON time, break time, test cycle index, this sequential can be reproduced by the round-robin form, and in the related interfaces of real time record (in panel or the computer software), the electrical current of current cycle time, cycling time, electric resistance heater, energising voltage, electric resistance heater resistance and temperature, Temperature numerical is measured by the sensor that is installed on the electric resistance heater.
When electric resistance heater damages, the current cycle time when power supply can write down the electric resistance heater damage.If electric resistance heater damages, its load will become infinity, we pass through the time parameter of electric resistance heater as judging statement with the circulation time no current, if promptly no current has surpassed the power cut off time that sets in the circulation by the time, think that so electric resistance heater damages, power supply stops circulation automatically, and data collecting instrument stops record, but keeps current cycle index and relevant test parameters.
In addition, because electric resistance heater is periodic duty, if be not cooled to room temperature after testing loop ends at every turn, can cause accumulation of heat to electric resistance heater, test findings is inaccurate.Therefore introduce pressurized air electric resistance heater is cooled off, and carry out timing controlled by solenoid valve, solenoid valve links to each other with the stabilized voltage supply two ends, and when dump, electric resistance heater is not worked, solenoid valve conduction, and pressurized air is introduced in air compressor work; When stabilized voltage supply is worked, electric resistance heater work, closed electromagnetic valve cuts off pressurized air.Solenoid valve rear end nozzle mainly in order to enlarge compressed-air actuated area, reduces the temperature of electric resistance heater faster, and compressed air outlet pressure is 5bar.
The utility model since in the stabilized power source internal configurations of auto switching be used for the Programmable Logic Controller PLC of control counter and relay, this Programmable Logic Controller PLC is to magnitude of voltage, current value and break-make sequential are set, and this sequential can be reproduced by the round-robin form, utilize solenoid control that pressurized air is introduced when dump simultaneously, when power work, cut off, thereby can cancel operating personnel, and carry out the twenty four hours long run test, therefore can well guarantee the development experiments progress, and, can accomplish test figure accurately and reliably by behind the verification experimental verification of a period of time.
Claims (3)
1, the automatic pilot system of a kind of electric resistance heater reliability, it is characterized in that: it comprises stabilized voltage supply, stube cable, Programmable Logic Controller PLC, counter, relay, data collecting instrument, solenoid valve, sensor and frock testing table; Programmable Logic Controller PLC, counter, relay and data collecting instrument are integrated in stabilized voltage supply inside, and electric resistance heater and solenoid valve are connected on the stabilized voltage supply with parallel way by stube cable; Data collecting instrument is connected to sensor on the electric resistance heater by stube cable, is equipped with electric resistance heater on the frock testing table.
2, the automatic pilot system of electric resistance heater reliability according to claim 1, it is characterized in that: it also is provided with air compressor and nozzle.
3, the automatic pilot system of electric resistance heater reliability according to claim 1, it is characterized in that: described data collecting instrument is integrated in power supply inside, can with the PC communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201448087U CN201352238Y (en) | 2008-12-24 | 2008-12-24 | Automatic test system for reliability of resistance heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201448087U CN201352238Y (en) | 2008-12-24 | 2008-12-24 | Automatic test system for reliability of resistance heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201352238Y true CN201352238Y (en) | 2009-11-25 |
Family
ID=41375626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201448087U Expired - Fee Related CN201352238Y (en) | 2008-12-24 | 2008-12-24 | Automatic test system for reliability of resistance heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201352238Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401865A (en) * | 2011-11-18 | 2012-04-04 | 张世勇 | Automatic test equipment for semiconductor integrated block |
| CN102768127A (en) * | 2012-08-09 | 2012-11-07 | 上海贝洱热系统有限公司 | Method and device for detecting low voltage heater of automobile air conditioner |
| CN103116086A (en) * | 2011-11-16 | 2013-05-22 | 中国科学院金属研究所 | Equipment and method of rapid life tests of built-in multihole heater |
| CN103616589A (en) * | 2013-11-28 | 2014-03-05 | 广东出入境检验检疫局检验检疫技术中心 | Electric cooker reliability detection device |
-
2008
- 2008-12-24 CN CNU2008201448087U patent/CN201352238Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116086A (en) * | 2011-11-16 | 2013-05-22 | 中国科学院金属研究所 | Equipment and method of rapid life tests of built-in multihole heater |
| CN103116086B (en) * | 2011-11-16 | 2015-03-25 | 中国科学院金属研究所 | Equipment and method of rapid life tests of built-in multihole heater |
| CN102401865A (en) * | 2011-11-18 | 2012-04-04 | 张世勇 | Automatic test equipment for semiconductor integrated block |
| CN102768127A (en) * | 2012-08-09 | 2012-11-07 | 上海贝洱热系统有限公司 | Method and device for detecting low voltage heater of automobile air conditioner |
| CN102768127B (en) * | 2012-08-09 | 2014-11-05 | 上海贝洱热系统有限公司 | Method and device for detecting low voltage heater of automobile air conditioner |
| CN103616589A (en) * | 2013-11-28 | 2014-03-05 | 广东出入境检验检疫局检验检疫技术中心 | Electric cooker reliability detection device |
| CN103616589B (en) * | 2013-11-28 | 2016-03-02 | 广东出入境检验检疫局检验检疫技术中心 | A kind of electric cooker reliability detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091125 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |