CN202320394U - Combined-type train shaft temperature sensor - Google Patents
Combined-type train shaft temperature sensor Download PDFInfo
- Publication number
- CN202320394U CN202320394U CN2011204421745U CN201120442174U CN202320394U CN 202320394 U CN202320394 U CN 202320394U CN 2011204421745 U CN2011204421745 U CN 2011204421745U CN 201120442174 U CN201120442174 U CN 201120442174U CN 202320394 U CN202320394 U CN 202320394U
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- temperature sensor
- sensor
- gnd
- digital temperature
- ground wire
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Abstract
A combined-type train shaft temperature sensor is characterized by mainly comprising a digital temperature sensor (1), a fuse sensor (2) and a peripheral circuit, wherein the data terminal (S) of the digital temperature sensor (1) is connected with the power source terminal of the digital temperature sensor (1) through a diode (D); a voltage stabilizing capacitor (C) is connected in parallel between the power source terminal and a ground wire (GND); the fuse sensor (2) and the digital temperature sensor (1) shares the ground wire (GND); and a resistor (R) is connected in parallel between the power source terminal (V) of the fuse sensor (2) and the ground wire (GND). The combined-type train shaft temperature sensor has a simple structure, is convenient to manufacture and assemble, and can fundamentally avoid the phenomena of false alarm and alarm failure.
Description
Technical field
The utility model relates to a kind of train technology, the shaft temperature sensor that uses on especially a kind of train, specifically a kind of combined type train axle temperature sensor.
Background technology
At present, the train axle temperature sensor usually adopts a digital temperature sensor or safety fuse cutout sensor to monitor the axle temperature state of operating train, and in time provides the state of overtemperature axletree through corresponding warning circuit.But there is following problem in the sensor of this structure; Can produce wrong report after the digital temperature sensor long-term work; A kind of is when temperature reaches alarm temperature, not report to the police; Can cause operation chaotic, another kind is when axle temperature surpasses critical temperature, not report to the police, the major accident that just possibly cause the train axle fracture to overturn.Iff adopts the safety fuse cutout sensor then because it can not export digital signal, can cause follow-up annunciator not know the particular location of overtemperature axletree, needs the indirect labor to search, and causes fault judgement inconvenience and delays, and to this, does not still have good solution at present.
Summary of the invention
The purpose of the utility model is the problem that is directed against the wrong report of existing train axle temperature sensor existence or can not confirms overtemperature axle position fast, designs a kind of combined type train axle temperature sensor that has combined present two kinds of train axle temperature characteristic sensors commonly used.
The technical scheme of the utility model is:
A kind of combined type train axle temperature sensor is characterized in that it mainly is made up of digital temperature sensor 1, safety fuse cutout sensor 2 and peripheral circuit thereof; The data terminal S of digital temperature sensor 1 links to each other with its power end through diode D and as the power supply of digital temperature sensor 1, between power end and ground wire GND and be connected to electric capacity of voltage regulation C; Described safety fuse cutout sensor 2 and the shared ground wire GND of digital temperature sensor (1) are parallel with resistance R between the power end V of safety fuse cutout sensor 2 and ground wire GND.
Described digital temperature sensor 1 is the DS18B20 type.
Described electric capacity of voltage regulation C is a courage electric capacity.
The beneficial effect of the utility model:
The utility model has been concentrated the advantage of two kinds of sensors commonly used at present, adopts Redundancy Design, complement one another, and damage, another still can normal operation; Can monitor axle temperature in real time and change, if the wrong count off of digital sensor, can judge whether it is wrong report through the state of safety fuse cutout according to generation.
The utility model has also solved the safety fuse cutout warning can not differentiate concrete axle position, and the wiring open circuit causes the drawback of wrong report;
The utility model is simple in structure, make easy to assembly, the generation that can fundamentally avoid flase alarm and fail to report alert phenomenon.
Description of drawings
Fig. 1 is the electric principle schematic of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1.
A kind of combined type train axle temperature sensor; It mainly is made up of digital temperature sensor 1, safety fuse cutout sensor 2 and peripheral circuit thereof; As shown in Figure 1; The utility model is formed a combined type shaft temperature sensor through digital temperature sensor (DS18B20) and safety fuse cutout sensor (100 ℃) are packaged together by shown in Figure 1; The data terminal S of digital temperature sensor 1 is connected to the power end of DS18B20 as its power supply through high speed diode D, between power end and ground wire GND, increase the courage capacitor C again and carry out voltage stabilizing; A safety fuse cutout sensor 2 and digital temperature sensor 1 a shared ground wire GND are in the V of safety fuse cutout sensor 2 end and resistance R of GND section parallel connection.
Safety fuse cutout sensor 2 only is the equal of a short-circuit block during shaft temperature sensor normal operation of the utility model, and the V end is short circuited with the GND end, and resistance value is 0; Safety fuse cutout sensor fusing when axle temperature >=100 ℃, this moment, the V end was R with the resistance value of GND end.
The utility model has been concentrated the advantage of two kinds of sensors through the complex technique of digital sensor and safety fuse cutout sensor, and the employing Redundancy Design complements one another, a damage, and another still can normal operation; Can monitor axle temperature in real time and change, if the wrong count off of digital sensor, can judge whether it is wrong report through the state of safety fuse cutout according to generation; This compound sensor has also solved the safety fuse cutout warning can not differentiate concrete axle position, and the wiring open circuit causes the drawback of wrong report; Use this sensor can avoid flase alarm and fail to report alert generation.
The utility model does not relate to all identical with the prior art prior art that maybe can adopt of part to be realized.
Claims (3)
1. combined type train axle temperature sensor is characterized in that it mainly is made up of digital temperature sensor (1), safety fuse cutout sensor (2) and peripheral circuit thereof; The data terminal (S) of digital temperature sensor (1) links to each other with its power end through diode (D), between power end and ground wire (GND) and be connected to electric capacity of voltage regulation (C); Described safety fuse cutout sensor (2) and the shared ground wire of digital temperature sensor (1) (GND) are parallel with resistance (R) between the power end (V) of safety fuse cutout sensor (2) and ground wire (GND).
2. combined type train axle temperature sensor according to claim 1 is characterized in that described digital temperature sensor (1) is the DS18B20 type.
3. combined type train axle temperature sensor according to claim 1 is characterized in that described electric capacity of voltage regulation (C) is a courage electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204421745U CN202320394U (en) | 2011-11-10 | 2011-11-10 | Combined-type train shaft temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204421745U CN202320394U (en) | 2011-11-10 | 2011-11-10 | Combined-type train shaft temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202320394U true CN202320394U (en) | 2012-07-11 |
Family
ID=46432385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204421745U Expired - Fee Related CN202320394U (en) | 2011-11-10 | 2011-11-10 | Combined-type train shaft temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202320394U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129578A (en) * | 2011-12-02 | 2013-06-05 | 南车青岛四方机车车辆股份有限公司 | Temperature valuing type compound temperature sensor and detecting method thereof |
| CN104501987A (en) * | 2014-12-25 | 2015-04-08 | 丹东鸭绿江敏感元件有限公司 | Limit trigger type platinum resistance temperature sensor |
| CN105752108A (en) * | 2016-02-26 | 2016-07-13 | 中车青岛四方机车车辆股份有限公司 | Positioning device for shaft temperature alarm shaft position of motor train unit |
-
2011
- 2011-11-10 CN CN2011204421745U patent/CN202320394U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129578A (en) * | 2011-12-02 | 2013-06-05 | 南车青岛四方机车车辆股份有限公司 | Temperature valuing type compound temperature sensor and detecting method thereof |
| CN103129578B (en) * | 2011-12-02 | 2015-06-24 | 南车青岛四方机车车辆股份有限公司 | Temperature valuing type compound temperature sensor and detecting method thereof |
| CN104501987A (en) * | 2014-12-25 | 2015-04-08 | 丹东鸭绿江敏感元件有限公司 | Limit trigger type platinum resistance temperature sensor |
| CN105752108A (en) * | 2016-02-26 | 2016-07-13 | 中车青岛四方机车车辆股份有限公司 | Positioning device for shaft temperature alarm shaft position of motor train unit |
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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: 20120711 Termination date: 20151110 |