CN210123312U - Pantograph polar plate temperature monitoring system - Google Patents
Pantograph polar plate temperature monitoring system Download PDFInfo
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- CN210123312U CN210123312U CN201920825156.1U CN201920825156U CN210123312U CN 210123312 U CN210123312 U CN 210123312U CN 201920825156 U CN201920825156 U CN 201920825156U CN 210123312 U CN210123312 U CN 210123312U
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Abstract
The utility model discloses a pantograph polar plate temperature monitoring system, which comprises a first non-contact temperature sensor (3), a second non-contact temperature sensor (4) and a controller (5); the non-contact temperature sensor is arranged on the automobile and is arranged facing the side end face of the pantograph polar plate, the vertical intersection point of the central axis of the non-contact temperature sensor and the pantograph polar plate is superposed with the connection point of the positive and negative high-voltage wires on the pantograph polar plate, so that the test view field of the non-contact temperature sensor on the pantograph polar plate is in the size range of the pantograph negative polar plate; the first non-contact temperature sensor and the second non-contact temperature sensor are respectively connected with the controller. The utility model discloses can be through the temperature of the accurate monitoring pantograph polar plate of non-contact's temperature measurement system, solve the insulating, the safety of charging, the excessive temperature of pantograph that often meets among the last pantograph temperature monitoring system of electric vehicle that fills soon and do not report to the police, the alert scheduling problem of wrong report, improve quick charge vehicle's security and usability.
Description
Technical Field
The utility model relates to a new energy automobile's safety protection system especially relates to a pantograph polar plate temperature monitoring system.
Background
With the development of new energy vehicles, the technology for rapidly charging the power battery of the electric vehicle appears and develops gradually, and is firstly applied to commercial vehicles such as public transport vehicles. However, the current power battery rapid charging technology is not mature, and has a plurality of problems, such as a pantograph temperature monitoring technology in rapid charging.
The pantograph in the rapid charging vehicle provided with the pantograph in the prior art is provided with a temperature monitoring device on the positive plate and the negative plate so as to monitor the dangerous condition of overhigh temperature of the pantograph polar plate caused by abnormal conditions such as loose connection between the positive plate and the negative plate of the pantograph and the charging wire bundle on the vehicle, poor contact between the pantograph and the charging pantograph polar plate, insufficient contact pressure, existence of foreign matters between the charging pantograph and the pantograph.
The monitoring method of the temperature monitoring system of the rapid charging vehicle in the prior art is as follows: the temperature of the polar plate is measured by pre-embedding a temperature probe on the pantograph polar plate, directly pressing or sticking a direct contact temperature sensor on the pantograph polar plate by a bolt and using the direct contact temperature sensor. Such a direct contact temperature sensor arrangement has several disadvantages, for example, when insulation problems occur in both positive and negative plate temperature sensors, the aging of the insulation material of the contact temperature sensor or the material quality problem, and the deposition of external rain water, dust, etc. on the sensor wire may cause insulation problems, when insulation problems occur in one temperature sensor on an individual positive or negative plate, a vehicle charging system is not yet formed due to a direct current high voltage loop, the system is still safe, and when insulation problems occur in both the temperature sensors on the positive and negative plates, high voltage direct current may form a loop through the positive and negative temperature sensors, the controller and the connection harness thereof during charging, resulting in the temperature measuring system being burned out, and even causing the risk of vehicle fire.
In addition, the direct contact type temperature sensor is easily interfered by the high-voltage electromagnetic environment due to direct contact with the high-voltage electromagnetic environment, so that the temperature measurement accuracy is low, the warning of over-temperature is possibly failed when the temperature of the pole plate of the actual pantograph is over-high, and the safety problem is caused, or the risk of over-temperature of the pole plate of the pantograph cannot be timely detected in the actual charging process or the fault is mistakenly reported when the temperature is not over-high actually, so that the safety risk or the fault of the vehicle is frequently reported in the actual rapid charging process, and the normal charging and attendance rate of the vehicle is influenced.
Disclosure of Invention
An object of the utility model is to provide a pantograph polar plate temperature monitoring system can accurate monitoring pantograph polar plate's temperature, makes quick charge vehicle have better security and usability.
The utility model discloses a realize like this:
a pantograph polar plate temperature monitoring system comprises a first non-contact temperature sensor, a second non-contact temperature sensor and a controller; the first non-contact temperature sensor is arranged on the automobile and faces the side end face of the pantograph negative pole plate, and the central axis of the first non-contact temperature sensor coincides with the vertical intersection point of the pantograph negative pole plate and the connection point of the negative high-voltage wire on the pantograph negative pole plate, so that the test view field of the first non-contact temperature sensor on the pantograph negative pole plate is within the size range of the pantograph negative pole plate; the second non-contact temperature sensor is arranged on the automobile and is installed in a manner of facing to the side end face of the pantograph anode polar plate, and the central axis of the second non-contact temperature sensor coincides with the vertical intersection point of the pantograph anode polar plate and the connection point of the anode high-voltage wire on the pantograph anode polar plate, so that the test view field of the second non-contact temperature sensor on the pantograph anode polar plate is in the size range of the pantograph anode polar plate; the first non-contact temperature sensor and the second non-contact temperature sensor are respectively connected with the controller.
The first non-contact temperature sensor is not in contact connection with the negative pole plate of the pantograph.
And the second non-contact temperature sensor is not in contact connection with the anode plate of the pantograph.
The controller is provided with a wireless signal transmitting device, a signal amplifying circuit, a filter circuit and a comparison circuit are arranged in the controller, the signal amplifying circuit, the filter circuit, the comparison circuit and the wireless signal transmitting device are sequentially connected, the signal amplifying circuit is connected with a first non-contact temperature sensor and a second non-contact temperature sensor, and the wireless signal transmitting device is connected with charging equipment through a wireless network.
The first non-contact temperature sensor and the second non-contact temperature sensor are infrared temperature sensors.
The first non-contact temperature sensor and the second non-contact temperature sensor are optical fiber temperature sensors.
The first non-contact temperature sensor and the second non-contact temperature sensor are intelligent laser thermometers.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses a non-contact temperature sensor, non-contact temperature sensor have a certain distance with positive and negative polar plate of pantograph, and direct current high voltage electricity during having avoided charging forms the possibility of short circuit phenomenon through non-contact temperature sensor to the temperature monitoring system controller and the interconnecting link that temperature sensor's insulation problem brought in the current contact temperature monitoring system problem of burning out causes the problem of vehicle fire risk even.
2. The utility model discloses a non-contact temperature sensor, non-contact temperature sensor have the certain distance from high-pressure electromagnetic environment, are difficult to receive electromagnetic interference relatively, and the temperature sensor signal can be relatively more accurate through necessary enlarging, behind the filtering treatment, the inaccurate problem of temperature measurement among the temperature monitoring system when having avoided current contact, has improved temperature monitoring's accuracy greatly, has reduced the possibility of excess temperature trouble wrong report, improves the security and the reliability of vehicle.
The utility model discloses can be through the temperature of the accurate monitoring pantograph polar plate of non-contact's temperature measurement system, solved the insulating, the safety of charging, the excessive temperature of pantograph that often meets among the pantograph temperature monitoring system on the current electric vehicle that fills soon and do not report to the police, the wrong report scheduling problem, make quick charge vehicle have better security and usability, have better application promotion prospect.
Drawings
Fig. 1 is a schematic diagram of the pantograph plate temperature monitoring system of the present invention.
In the figure, 1 pantograph negative pole plate, 2 pantograph positive pole plate, 3 first non-contact temperature sensor, 4 second non-contact temperature sensor, 5 controller, 51 wireless signal transmitting device, 52 signal amplifying circuit, 53 filter circuit, 54 comparison circuit, 6 power battery.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, a pantograph pole plate temperature monitoring system includes a first non-contact temperature sensor 3, a second non-contact temperature sensor 4 and a controller 5; the first non-contact temperature sensor 3 is arranged on the automobile and is installed opposite to the side end face of the pantograph negative pole plate 1 and used for measuring the temperature of the pantograph negative pole plate 1, the vertical intersection point of the central axis of the first non-contact temperature sensor 3 and the pantograph negative pole plate 1 coincides with the connection point of a negative high-voltage wire on the pantograph negative pole plate 1, if the connection is unreliable, the point is most prone to generate a high-temperature phenomenon, the test view field of the first non-contact temperature sensor 3 on the pantograph negative pole plate 1 is within the size range of the height, the width and the thickness of the pantograph negative pole plate 1, and the temperature of objects except the pantograph negative pole plate 1 can not influence the accuracy of temperature measurement; the second non-contact temperature sensor 4 is arranged on the automobile and is installed opposite to the side end face of the pantograph anode polar plate 2 and used for measuring the temperature of the pantograph anode polar plate 2, the vertical intersection point of the central axis of the second non-contact temperature sensor 4 and the pantograph anode polar plate 2 coincides with the connection point of the anode high-voltage wire on the pantograph anode polar plate 2, if the connection is unreliable, the point is most prone to generate a high-temperature phenomenon, so that the test view field of the second non-contact temperature sensor 4 on the pantograph anode polar plate 2 is within the size range of the height, the width and the thickness of the pantograph anode polar plate 2, and the temperature of objects except the pantograph anode polar plate 2 can not influence the accuracy of temperature measurement; the first non-contact temperature sensor 3 and the second non-contact temperature sensor 4 are respectively connected with the controller 5, and the first non-contact temperature sensor 3 and the second non-contact temperature sensor 4 receive parameter signals capable of reflecting the temperature characteristics of the pantograph negative electrode plate 1 and the pantograph positive electrode plate 2 in the charging process, convert the temperature characteristic parameter signals of the pantograph into electric signals and transmit the electric signals to the controller 5.
The first non-contact temperature sensor 3 is in non-contact connection with the pantograph negative electrode plate 1, and senses the temperature of the pantograph negative electrode plate 1 in a non-contact mode, such as sensing an infrared radiation signal of the pantograph negative electrode plate 1.
The second non-contact temperature sensor 4 is in non-contact connection with the positive electrode plate 2 of the pantograph, and senses the temperature of the positive electrode plate 2 of the pantograph in a non-contact mode, such as sensing an infrared radiation signal of the positive electrode plate 2 of the pantograph.
The controller 5 is provided with a wireless signal transmitting device 51, the controller 5 is internally provided with a signal amplifying circuit 52, a filter circuit 53 and a comparison circuit 54, the signal amplifying circuit 52, the filter circuit 53, the comparison circuit 54 and the wireless signal transmitting device 51 are sequentially connected, the signal amplifying circuit 52 is connected with the first non-contact temperature sensor 3 and the second non-contact temperature sensor 4, and the wireless signal transmitting device 51 is connected with charging equipment through a wireless network; the device can be used for amplifying and filtering the received electric signals, converting the electric signals into temperature values, judging the temperature values, and sending charging stop or continuous charging signals to the charging equipment according to the judgment result. Preferably, the controller 5 may be a computer control device of the prior art.
Preferably, the first non-contact temperature sensor 3 and the second non-contact temperature sensor 4 may employ existing temperature sensing devices such as an infrared temperature sensor, an optical fiber temperature sensor, or an intelligent laser thermometer.
During installation, the first non-contact temperature sensor 3 and the second non-contact temperature sensor 4 are quickly charged to the top of a vehicle or other places which are convenient to arrange, the distance between the non-contact temperature sensors and a pantograph polar plate can be adjusted, but the testing view field of the non-contact temperature sensors is ensured not to exceed the size of the pantograph polar plate, the non-contact temperature sensors are ensured to only measure the temperature of the pantograph polar plate, and the interference of the external temperature is effectively prevented; meanwhile, because the high temperature phenomenon occurs most frequently at the connecting point of the pantograph polar plate and the high-voltage wire, the non-contact temperature sensor is arranged facing the side surface of the pantograph polar plate, and the perpendicular intersection point of the central axis of the non-contact temperature sensor and the pantograph polar plate is just positioned at the connecting point of the pantograph polar plate and the high-voltage wire, so that the non-contact temperature sensor is ensured to measure the temperature of the pantograph polar plate by taking the connecting point of the pantograph polar plate and the high-voltage wire as the center, and the monitoring accuracy is effectively ensured. The pantograph negative pole plate 1 and the pantograph positive pole plate 2 are respectively connected with the negative pole and the positive pole of a power battery 6 of the vehicle, and are respectively connected with the negative pole and the positive pole of a charging pantograph during charging, and receive the charging current of the charging pantograph so as to charge the power battery 6.
The utility model discloses pantograph polar plate temperature monitoring system's operation method specifically is: the first non-contact temperature sensor 3 installed around the pantograph negative electrode plate 1 measures the temperature of the pantograph negative electrode plate 1 and transmits an electric signal to the controller 5, the second non-contact temperature sensor 4 installed around the pantograph positive electrode plate 2 measures the temperature of the pantograph positive electrode plate 2 and transmits the electric signal to the controller 5, the signal amplification circuit 52 receives and amplifies the electric signal, the filtering circuit 53 performs filtering processing on the signal, the signal is converted into a temperature value, and the temperature value is judged and processed by the comparison circuit 54. When the controller 5 determines that the temperature rise of the pantograph plate in the charging process exceeds the set safety threshold, preferably, the safety threshold of the charging temperature of the pantograph plate can be set to 120 ℃, and an instruction that the temperature of the pantograph plate is too high and the charging is requested to be stopped is sent to the charging equipment through the wireless signal transmitting device 51 connected with the pantograph plate through a wireless network so as to stop the charging; when the controller 5 judges that the temperature of the pantograph pan is within the safety threshold range, an instruction that the temperature of the pantograph pan is normal and normal charging is requested is sent to the charging equipment through the wireless signal transmitting device 51 connected with the controller through the wireless network, so that the charging equipment continues to charge the rapid charging vehicle.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a pantograph polar plate temperature monitoring system which characterized by: comprises a first non-contact temperature sensor (3), a second non-contact temperature sensor (4) and a controller (5); the first non-contact temperature sensor (3) is arranged on the automobile and faces the side end face of the pantograph negative pole plate (1), and the vertical intersection point of the central axis of the first non-contact temperature sensor (3) and the pantograph negative pole plate (1) is superposed with the connection point of a negative high-voltage wire on the pantograph negative pole plate (1), so that the test view field of the first non-contact temperature sensor (3) on the pantograph negative pole plate (1) is in the size range of the pantograph negative pole plate (1); the second non-contact temperature sensor (4) is arranged on the automobile and faces the side end face of the pantograph anode polar plate (2), and the vertical intersection point of the central axis of the second non-contact temperature sensor (4) and the pantograph anode polar plate (2) is superposed with the connection point of the positive high-voltage line on the pantograph anode polar plate (2), so that the test view field of the second non-contact temperature sensor (4) on the pantograph anode polar plate (2) is in the size range of the pantograph anode polar plate (2); the first non-contact temperature sensor (3) and the second non-contact temperature sensor (4) are respectively connected with the controller (5).
2. The pantograph plate temperature monitoring system of claim 1, wherein: the first non-contact temperature sensor (3) is in non-contact connection with the pantograph negative pole plate (1).
3. The pantograph plate temperature monitoring system of claim 1, wherein: and the second non-contact temperature sensor (4) is in non-contact connection with the positive pole plate (2) of the pantograph.
4. The pantograph plate temperature monitoring system of claim 1, wherein: the charging system is characterized in that a wireless signal transmitting device (51) is arranged on the controller (5), a signal amplifying circuit (52), a filter circuit (53) and a comparison circuit (54) are arranged in the controller (5), the signal amplifying circuit (52), the filter circuit (53), the comparison circuit (54) and the wireless signal transmitting device (51) are sequentially connected, the signal amplifying circuit (52) is connected with the non-contact temperature sensor (3) and the second non-contact temperature sensor (4), and the wireless signal transmitting device (51) is connected with charging equipment through a wireless network.
5. The pantograph plate temperature monitoring system of claim 1, wherein: the first non-contact temperature sensor (3) and the second non-contact temperature sensor (4) are infrared temperature sensors.
6. The pantograph plate temperature monitoring system of claim 1, wherein: the first non-contact temperature sensor (3) and the second non-contact temperature sensor (4) are optical fiber temperature sensors.
7. The pantograph plate temperature monitoring system of claim 1, wherein: the first non-contact temperature sensor (3) and the second non-contact temperature sensor (4) are intelligent laser thermometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920825156.1U CN210123312U (en) | 2019-06-03 | 2019-06-03 | Pantograph polar plate temperature monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920825156.1U CN210123312U (en) | 2019-06-03 | 2019-06-03 | Pantograph polar plate temperature monitoring system |
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| CN210123312U true CN210123312U (en) | 2020-03-03 |
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| CN201920825156.1U Active CN210123312U (en) | 2019-06-03 | 2019-06-03 | Pantograph polar plate temperature monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521271A (en) * | 2020-04-28 | 2020-08-11 | 株洲中车时代电气股份有限公司 | Bow net detection method, device and system based on infrared image |
| CN112684738A (en) * | 2020-12-14 | 2021-04-20 | 广州极飞科技有限公司 | Device control method, device, battery module, and nonvolatile storage medium |
| CN114537149A (en) * | 2022-04-22 | 2022-05-27 | 深圳市永达电子信息股份有限公司 | Method for non-contact detection of locomotive pantograph characteristic parameters |
-
2019
- 2019-06-03 CN CN201920825156.1U patent/CN210123312U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521271A (en) * | 2020-04-28 | 2020-08-11 | 株洲中车时代电气股份有限公司 | Bow net detection method, device and system based on infrared image |
| WO2021218137A1 (en) * | 2020-04-28 | 2021-11-04 | 株洲中车时代电气股份有限公司 | Infrared image-based pantograph-catenary detection method, apparatus and system, and medium and device |
| CN112684738A (en) * | 2020-12-14 | 2021-04-20 | 广州极飞科技有限公司 | Device control method, device, battery module, and nonvolatile storage medium |
| CN112684738B (en) * | 2020-12-14 | 2022-03-18 | 广州极飞科技股份有限公司 | Device control method, device, battery module, and nonvolatile storage medium |
| CN114537149A (en) * | 2022-04-22 | 2022-05-27 | 深圳市永达电子信息股份有限公司 | Method for non-contact detection of locomotive pantograph characteristic parameters |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200901 Address after: 200041 No. 489, Weihai Road, Shanghai, Jingan District Co-patentee after: SAIC Motor Corp.,Ltd. Patentee after: SAIC MOTOR Corp.,Ltd. Address before: 200438 No. 2500, military road, Shanghai, Yangpu District Patentee before: SAIC Motor Corp.,Ltd. |
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| TR01 | Transfer of patent right |