CN202734974U

CN202734974U - Temperature on-line monitoring device for motor rotor

Info

Publication number: CN202734974U
Application number: CN201220291203.7U
Authority: CN
Inventors: 彭凯
Original assignee: Bombardier CPC Propulsion System Co Ltd
Current assignee: Bombardier NUG Propulsion System Co Ltd
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2013-02-13
Anticipated expiration: 2022-06-20

Abstract

The utility model relates to a temperature on-line monitoring device for a motor rotor and the temperature on-line monitoring device comprises a temperature-signal detection emission module and a signal-receiving processing module. The temperature-signal detection emission module comprises a temperature sensor, an A/D conversion module and a data-processing emission module. An output terminal of the temperature sensor is electrically connected with the A/D conversion module and the data-processing emission module successively. The signal-receiving processing module comprises a signal receiver, a signal processing module and a display module. An output terminal of the data-processing emission module is connected with an input terminal of the signal receiver in a radio communication manner. An output terminal of the signal receiver is electrically connected with the signal processing module and the display module successively. The temperature on-line monitoring device provided by the utility model has the advantages of convenient assembling and high accuracy and reliability.

Description

The rotor temperature on-line monitoring device

Technical field

The utility model relates to a kind of rotor temperature on-line monitoring device that can the running temperature of Real-Time Monitoring rotor under running status, and the traction electric machine that belongs to locomotive is made the field.

Background technology

On the rotor of existing motor vehicle temperature sensor is housed, and rotor one end is equipped with the sliding part that is made of slip ring and carbon brush, the conductor wire of described temperature sensor passes sliding part and is electrically connected with the temperature indicator device; Sliding part is along with rotor turns round simultaneously, and will detecting the running temperature of rotor, described temperature sensor converts electric signal to, and electric signal is delivered to the temperature indicator device to be processed, show the current running temperature of rotor, by monitoring the running temperature of rotor, adjust the running status of motor, to guarantee that motor is working in the situation safely and effectively; Yet the rotor temperature monitoring system of this structure has certain shortcoming, in use the conductor wire of temperature sensor is easily loosening, again owing to having contact resistance between slip ring and the carbon brush, cause monitoring accuracy not high, simultaneously for rotor and sliding part are assembled, greatly increased the technology difficulty of making this kind structural electromotor, and slip ring carbon brush needs periodic maintenance, so that the maintenance cost of traction electric machine operation phase is higher.

Summary of the invention

The purpose of this utility model is: provides a kind of and not only is convenient to assembling, and the rotor temperature on-line monitoring device that degree of accuracy is high, reliability is high, to overcome the deficiencies in the prior art.

In order to achieve the above object, the technical solution of the utility model is: a kind of rotor temperature on-line monitoring device comprises that temperature signal detects transmitter module and signal receiving processing module; Described temperature signal detects transmitter module and comprises temperature sensor, A/D modular converter and data processing transmitter module, and the output terminal of described temperature sensor is processed transmitter module with A/D modular converter and data successively and is electrically connected; Described signal receiving processing module comprises signal receiver, signal processing module and display module, the output terminal that described data are processed transmitter module is connected with the input end radio communication of signal receiver, and the output terminal of signal receiver is electrically connected with signal processing module and display module successively.

In technique scheme, described temperature sensor is that model is the platinum resistance of Pt100; Described A/D modular converter is that model is 8 bit serial analog-to-digital conversion modules of TCL549 integrated chip; It is that model is the MCU data processing integrated chip of MC68HC908RF2 that described data are processed transmitter module.

In technique scheme, described signal receiver is that model is the RF reception integrated chip of MC33594; Described signal processing module is that model is the CPU integrated chip of AT89C2051.

The good effect that the utility model has is: owing to after adopting the utility model said structure, temperature signal is detected transmitter module be contained on the rotor, signal receiving processing module and monitor supervision platform communication connection; Described temperature sensor will detect the voltage signal that changes after the rotor temperature and convert digital signal to by the A/D modular converter, and process transmitter module by data this digital signal is delivered to signal receiver by radio communication, convert digital signal to simulating signal by signal processing module, show the running temperature that detects rotor by display module.The utility model is not only easy for installation, and rotor realizes the signal transmission by communication under the High Rotation Speed state, so that detected signal accuracy is high; After using the utility model, the diagnosis of traction electric machine initial failure has improved more than 80%.Realized the purpose of this utility model.

Description of drawings

Fig. 1 is the circuit theory block diagram of a kind of embodiment of the utility model;

Fig. 2 is the physical circuit schematic diagram that temperature signal detects transmitter module among Fig. 1;

Fig. 3 is the physical circuit schematic diagram of signal receiving processing module among Fig. 1.

Embodiment

Below in conjunction with accompanying drawing and the embodiment that provides, the utility model is further described, but is not limited to this.

As shown in Figure 1, 2, 3, a kind of rotor temperature on-line monitoring device comprises that temperature signal detects transmitter module 1 and signal receiving processing module 2; Described temperature signal detects transmitter module 1 and comprises temperature sensor 1-1, A/D modular converter 1-2 and data processing transmitter module 1-3, and the output terminal of described temperature sensor 1-1 is processed transmitter module 1-3 with A/D modular converter 1-2 and data successively and is electrically connected; Described signal receiving processing module 2 comprises signal receiver 2-1, signal processing module 2-2 and display module 2-3, the output terminal that described data are processed transmitter module 1-3 is connected with the input end radio communication of signal receiver 2-1, and the output terminal of signal receiver 2-1 is electrically connected with signal processing module 2-2 and display module 2-3 successively.

As shown in Figure 2, described temperature sensor 1-1 is that model is the platinum resistance of Pt100; Described A/D modular converter 1-2 is that model is 8 bit serial analog-to-digital conversion modules of TCL549 integrated chip; It is that model is the MCU data processing integrated chip of MC68HC908RF2 that described data are processed transmitter module 1-3.

As shown in Figure 3, described signal receiver 2-1 is that model is the RF reception integrated chip of MC33594; Described signal processing module 2-2 is that model is the CPU integrated chip of AT89C2051.

The course of work of the present utility model: such as Fig. 2, shown in 3, when the running temperature of rotor rises, temperature sensor 1-1 resistance increases, and its voltage is linear and becomes large, 1-2 is converted to digital signal with voltage signal by the A/D modular converter, data are processed transmitter module 1-3 signal receiver 2-1 is processed and be emitted to the signal that receives, signal receiver 2-1 will receive high-frequency electromagnetic signal, and deliver to signal processing module 2-2 by data bus and carry out the data processing, show that by display module 2-3 current detection is to the running temperature of rotor at last.

The utility model lab scale effect shows, has improved detection rotor running temperature precision, is convenient to safeguard, production cost reduces more than 30%, greatly reduces manufacturing cost.Realized original intention of the present utility model.

Claims

1. a rotor temperature on-line monitoring device is characterized in that: comprise that temperature signal detects transmitter module (1) and signal receiving processing module (2); Described temperature signal detects transmitter module (1) and comprises temperature sensor (1-1), A/D modular converter (1-2) and data processing transmitter module (1-3), and the output terminal of described temperature sensor (1-1) is processed transmitter modules (1-3) with A/D modular converter (1-2) and data successively and is electrically connected; Described signal receiving processing module (2) comprises signal receiver (2-1), signal processing module (2-2) and display module (2-3), the output terminal that described data are processed transmitter module (1-3) is connected with the input end radio communication of signal receiver (2-1), and the output terminal of signal receiver (2-1) is electrically connected with signal processing module (2-2) and display module (2-3) successively.

2. rotor temperature on-line monitoring device according to claim 1, it is characterized in that: described temperature sensor (1-1) is that model is the platinum resistance of Pt100; Described A/D modular converter (1-2) is that model is 8 bit serial analog-to-digital conversion modules of TCL549 integrated chip; It is that model is the MCU data processing integrated chip of MC68HC908RF2 that described data are processed transmitter module (1-3).

3. rotor temperature on-line monitoring device according to claim 1 is characterized in that: described signal receiver (2-1) is that model is that the RF of MC33594 receives integrated chip; Described signal processing module (2-2) is that model is the CPU integrated chip of AT89C2051.