CN202720068U - Four-quadrant temperature and humidity monitoring device - Google Patents
Four-quadrant temperature and humidity monitoring device Download PDFInfo
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- CN202720068U CN202720068U CN 201220339172 CN201220339172U CN202720068U CN 202720068 U CN202720068 U CN 202720068U CN 201220339172 CN201220339172 CN 201220339172 CN 201220339172 U CN201220339172 U CN 201220339172U CN 202720068 U CN202720068 U CN 202720068U
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Abstract
The utility model relates to a four-quadrant temperature and humidity monitoring device, which comprises a data acquisition card, a conditioning module and a single-board computer which are connected with an IGBT module being detected. Temperature sensors arranged on the outer pipe walls of a water inlet and a water outlet of a radiating water channel of the IGBT module, and temperature sensors arranged on the surface of a radiator of the IGBT module are all connected with the data acquisition card through wires; a humidity sensor is connected with the single-board computer in a serial port manner; the data acquisition card is connected with the single-board computer in a serial port manner through the conditioning module; and data is displayed through a display screen on the single-board computer and stored. The four-quadrant temperature and humidity monitoring device provided by the utility model can collect temperature or humidity monitoring data of as many as 64 paths simultaneously. The temperature and humidity data collected are displayed in real time through single-board computer control as well as touch screen control. The four-quadrant temperature and humidity monitoring device is firm and durable in structure, small in size, convenient in assembly and disassembly, stable in operation, and high in detection precision.
Description
Technical field
The utility model relates to and a kind ofly occurs the monitoring device that machine breaks phenomenon for HXD1B locomotive safety running, prevention because high temperature causes IGBT to lose efficacy, and concrete relates to a kind of HXD1B of being applicable to locomotive current transformer IGBT four-quadrant humiture monitoring device.
Background technology
At present, although various types of sensors have been installed in the HXD1B electric locomotive, such as the IGBT(large power semiconductor device that special detection is arranged) sensor of circulating water temperature in the cooling system, but, also do not have special equipment of directly monitoring temperature, humidity for high-power IGBT device in the traction convertor on the HX type locomotive.And should temperature, humidity is directly to affect the key parameter that IGBT effectively uses, there is following problem in this type of present circulating water temperature monitoring:
1) temperature rise of monitoring circulating water temperature lags behind the temperature rise of IGBT device own, and the damage process of device is very fast, so this monitoring and protecting might device failure occur, water temperature does not also reach the fault of alarming value, and its protection mechanism is not really shielded;
2) temperature monitoring information is processed automatically by systematic unity, and locomotive breaks down or machine when broken, and the staff is failure judgement reason, instant processing directly;
3) can not report to the police in advance for the IGBT failure cause that causes owing to temperature, humidity factor, can not intuitively observe the Changing Pattern between its temperature, humidity and the locomotive operating mode, not have direct experience data, can not detect by multiple spot.
Summary of the invention
Technical problem to be solved in the utility model is to propose a kind of four-quadrant humiture monitoring device for above-mentioned prior art, has overcome the phenomenon that existing circulating water temperature monitoring device raises because of environment temperature.
The utility model solves the problems of the technologies described above the technical scheme that adopts: the four-quadrant humiture monitoring device, it is characterized in that including the data collecting card that is connected with detected IGBT module, conditioning module and single-borad computer, the temperature sensor that is arranged at the temperature sensor on the outer tube wall of the heat radiation water channel water inlet of IGBT module and water delivering orifice and is arranged at the spreader surface of IGBT module all links to each other with data collecting card by wire, humidity sensor also links to each other with single-borad computer by serial mode, data collecting card is connected by serial mode with single-borad computer by conditioning module, shows data and carries out the data storage by the display screen on the single-borad computer.
Press such scheme, described temperature sensor is SMD thermistor PT100, and described humidity sensor is wide temperature network-type humiture transducer.
Press such scheme, described single-borad computer is that the wide temperature level single-borad computer of Ling Hua LlitteBoard 735 military projects and Ling Hua ASD25-SLC high speed 128GB solid state hard disc form basic computer system.
Press such scheme, described data collecting card is Ling Hua PCM-9112+ multi-function data acquisition card.
Press such scheme, described conditioning module is the thermal resistance conditioning module of grinding China.
Advantage of the present utility model: be applicable to monitor all IGBT module ruuning situations in the HXD1B type locomotive traction convertor, used the multi-channel serial bussing technique, can gather simultaneously nearly 64 tunnel temperature or the Monitoring Data of humidity, utilize single-borad computer control to add touch-screen control, show in real time temperature, the humidity data that gathers.Its sound construction is durable, volume is small and exquisite, installation and removal are convenient, stable, accuracy of detection is high.Its technical characterstic:
(1) accident warning device compact conformation, volume are small and exquisite, installation and removal are very convenient, can satisfy the monitoring requirement of high-power IGBT module multiple spot temperature, humidity in the electric locomotive of HX type, its direct-detection IGBT module temperature and ambient humidity, light and temperature, IGBT is given warning in advance because of the Temperature Failure fault, can prevent that it from further burning out;
(2) adopt single-borad computer control and touch-screen control and display mode, simple to operation, peripherals such as printer etc. can connect easily;
(3) this device adopts high-precision sensor, has guaranteed that accuracy of detection is high, response is fast, can show in real time data, and overall operation is stable;
(4) this device can make things convenient for the special selective analysis of locomotive IGBT failure procedure, and the whole-process automatic monitoring accurately and reliably, is saved manpower, realizes man-machine joint control;
(5) variation relation between IGBT temperature and locomotive load, the operating condition can be observed more intuitively, just contingent fault can be processed and prevent by operating personnel according to the empirical data of these records.
Description of drawings
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is an actual installation schematic diagram of the present utility model.
Embodiment
The utility model is described in more detail below in conjunction with embodiment, but this explanation can not consist of restriction of the present utility model.
By the analysis of causes that traction convertor fault in the HXD1B electric locomotive is produced as can be known, IGBT lost efficacy and temperature, the humidity of its environment for use have important relation, therefore, temperature, humidity from monitoring IGBT and heating radiator thereof, development can change the four-quadrant module that causes based on temperature, humidity and lose efficacy and failure warning system, simultaneously, be conducive to prevent because the infringement of IGBT module causes the generation of the broken situation of machine.All can produce positive effect to the safe operation that improves locomotive and the actual effect that ensures the utilization of large power semiconductor device (IGBT).
Four-quadrant humiture monitoring device of the present utility model mainly is the reason that lost efficacy for IGBT, such as super overheating limit, generation latching effect, device overcurrent, over-voltage breakdown etc.Between these reasons and device temperature, the humidity close contacting arranged.Therefore, from the angle of temperature, humidity, mainly HX type electric locomotive four-quadrant IGBT module failure is carried out follow-up study.Start with from mechanism and detection that fault produces, it is carried out Real Time Monitoring, by real-time detection and the data acquisition for IGBT module temperature and modular environment humidity, analyze the relation that draws between IGBT performance and its temperature, humidity and the rate of change.By finding out the temperature and humidity rate of change threshold value that the IGBT device is degenerated, can utilize this device that the IGBT fault is carried out early warning, the minimizing machine breaks life as far as possible.Simultaneously, this also provides theoretical foundation for the eliminating of later stage IGBT fault, effective use of Semiconductor Converting Technology.In addition, failure mechanism from humiture angle research IGBT, change the heat dissipation model effect of parameters by emulation and analysis of experimental data humiture, provide theoretical foundation for improving radiating condition, product design and technique, significant to the life-span of improving product.
The four-quadrant humiture monitoring device, it is characterized in that including the data collecting card that is connected with detected IGBT module, conditioning module and single-borad computer, 2 temperature sensors are attached to respectively on the outer tube wall of IGBT heat radiation water channel water inlet and water delivering orifice, other 4 temperature sensors directly stick on the spreader surface of IGBT module, temperature sensor is received data collecting card by wire, data collecting card is connected by serial mode with single-borad computer by conditioning module, humidity transmitter adopts serial mode directly to be connected with single-borad computer, and humidity sensor and single-borad computer are positioned at third party's switch board 1.For guaranteeing that sensor is easy to install, select SMD thermistor PT100 as temperature sensor, humidity sensor is then selected the wide temperature network-type humiture transducer of high precision, fast response time; Select the wide temperature level single-borad computer of Ling Hua LlitteBoard 735 military projects and Ling Hua ASD25-SLC high speed 128GB solid state hard disc to form basic computer system, adapt to some rugged surroundings to guarantee monitoring system; Capture card is selected Ling Hua PCM-9112+ multi-function data acquisition card, guarantees to carry out multi-point Temperature Collection up to 16 passage AD, improves analysis of experiments result's accuracy; Conditioning module is selected the thermal resistance conditioning module of grinding China; Be within the firm metal box of IP50 at a degree of protection with all component integrations except probe power, all signaling interfaces are connected industrial connector to connect with power interface.
Always have 8 IGBT four-quadrant phase modules on the HXD1B locomotive, lay respectively in 2 identical converter cabinets of layout, therefore, when the trial run of monitoring device, selected one of them to carry out installation test from the converter cabinet 2 of third party's switch board close to.Monitoring device one has No. 6 temperature sensors, is labeled as respectively: a1, a2, a3, a4, a5, a6; Wherein a1 and a3 are attached to respectively rising pipe and water inlet pipe shell, and a2, a4, a5, a6 are pasted on respectively on the heating radiator of 4QC1,4QC2,4QC3 and 4QC4.
At first begin installation and operation October, after downloading data carries out off-line analysis, continue perfect after the program again in loading operation in 3 days to No. 9 Dec.
The operation steps explanation: as shown in the figure,
(1) for 4 phase module of 2 four-quadrant rectifiers of different parts, be attached to temperature sensor platinum resistance paster on 4 points for measuring temperature choosing with heat conductive silica gel, simultaneously, other 2 temperature sensors are attached to 2 water inlet pipe and water outlet pipe point for measuring temperature places that choose, and install the humiture transducer of testing environment humidity;
(2) direct opening power module switch, accident warning device just starts start, after starting shooting, selects to enter the interface that temperature and humidity detects at touch-screen;
(3) the detected locomotive identification of input in detecting the interface, temperature and humidity detects and begins simultaneously to carry out;
(4) tab of the disparate modules of the tab by selecting the first row variety classes module on the interface and the second row, can select to check the temperature detection data of any 4 IGBT phase modules in the inverter, simultaneously the humiture data of the real-time display environment in a hurdle on the right of the interface.
(5) after detection finishes, click shutdown and can close smoothly this device, simultaneously the powered-down switch.Testing result can be carried out dump or printing etc. by USB interface.
Points for attention when the utility model uses:
1) for making this equipment can keep for a long time superperformance, should avoid it to fall or under pressure from eminence;
2) detect before, check that in advance each element of this equipment can work, carry out smoothly to guarantee to detect;
3) should adopt finger to touch to the operation of man-machine interface, forbid firmly to impact and use hard thing to impact man-machine interface, otherwise will damage the interface;
4) after detection finishes, should in time turn off power switch;
5) external positive and negative electrode must not directly link to each other, otherwise will cause the Switching Power Supply scaling loss.
Claims (5)
1. four-quadrant humiture monitoring device, it is characterized in that including the data collecting card that is connected with detected IGBT module, conditioning module and single-borad computer, the temperature sensor that is arranged at the temperature sensor on the outer tube wall of the heat radiation water channel water inlet of IGBT module and water delivering orifice and is arranged at the spreader surface of IGBT module all links to each other with data collecting card by wire, humidity sensor also links to each other with single-borad computer by serial mode, data collecting card is connected by serial mode with single-borad computer by conditioning module, shows data and carries out the data storage by the display screen on the single-borad computer.
2. by four-quadrant humiture monitoring device claimed in claim 1, it is characterized in that described temperature sensor is SMD thermistor PT100, described humidity sensor is wide temperature network-type humiture transducer.
3. by claim 1 or 2 described four-quadrant humiture monitoring devices, it is characterized in that described single-borad computer is that the wide temperature level single-borad computer of Ling Hua LlitteBoard 735 military projects and Ling Hua ASD25-SLC high speed 128GB solid state hard disc form basic computer system.
4. by claim 1 or 2 described four-quadrant humiture monitoring devices, it is characterized in that described data collecting card is Ling Hua PCM-9112+ multi-function data acquisition card.
5. by claim 1 or 2 described four-quadrant humiture monitoring devices, it is characterized in that described conditioning module is the thermal resistance conditioning module of grinding China.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339172 CN202720068U (en) | 2012-07-13 | 2012-07-13 | Four-quadrant temperature and humidity monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339172 CN202720068U (en) | 2012-07-13 | 2012-07-13 | Four-quadrant temperature and humidity monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN202720068U true CN202720068U (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339172 Expired - Fee Related CN202720068U (en) | 2012-07-13 | 2012-07-13 | Four-quadrant temperature and humidity monitoring device |
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| CN (1) | CN202720068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316857A (en) * | 2014-10-31 | 2015-01-28 | 北京工业大学 | IGBT thermal fatigue test system |
-
2012
- 2012-07-13 CN CN 201220339172 patent/CN202720068U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316857A (en) * | 2014-10-31 | 2015-01-28 | 北京工业大学 | IGBT thermal fatigue test system |
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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: 20130206 Termination date: 20160713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |