CN201540499U - Intelligent heating device for locomotive brake gas circuit board - Google Patents

Abstract

The utility model discloses an intelligent heating device for a locomotive brake gas circuit board, which consists of a control circuit and a heating element, wherein the control circuit comprises a power supply module and an acquisition module, a single chip and a heating control module which are powered by the power supply module; the output end of the acquisition module is connected with the signal input end of the single chip, and the signal output end of the single chip is connected with a heating element through the heating control module; and the acquisition module comprises a temperature sensor arranged close to the gas circuit board. The intelligent heating device for the locomotive brake gas circuit board can automatically control the heating of the gas circuit board, meanwhile can display fault information in real time, and has the advantages of simple circuit, low cost and convenient implementation.

Description

The intelligent heater that is used for the locomotive brake gear gas path plate

Technical field

The utility model relates to locomotive brake gear field in the railway locomotive, refers in particular to a kind of intelligent heater that is used for the locomotive brake gear gas path plate.

Background technology

At present, integrated air board is widely used on electric locomotive and the city rail vehicle.In low temperature environment, because the shrinkage of metal material makes gas channels become narrow, cause air-flow not smooth on the one hand; Lower on the other hand temperature can make in the gas path plate liquefaction of pressurized air institute moisture vapor and then freeze, and causes gas circuit obstructed, makes gas path plate and contained gas circuit component failure thereof.These unfavorable factors can directly cause the locomotive brake gear cisco unity malfunction, influence the normal operation and the safety of locomotive.Therefore in low temperature environment, the brake gas path plate is heated particularly important.

The heating arrangement of present stage locomotive gas path plate employing is intelligence inadequately, shows as: 1. whether the work of well heater needs human intervention (by key-lifting switch control); 2. do not have the fault prompt facility; 3. heating-up temperature can not accurately be controlled.

The utility model content

The technical problems to be solved in the utility model: the defective at above-mentioned prior art exists, a kind of intelligent heater that is used for the locomotive brake gear gas path plate is provided, can control the gas path plate heating automatically, and circuit is simple, cost is low, is convenient to realize.

For solving the problems of the technologies described above, the solution that the utility model proposes is: a kind of intelligent heater that is used for the locomotive brake gear gas path plate, form by control circuit and heating element, wherein control circuit comprises that power module reaches acquisition module, single-chip microcomputer and the heating control module by its power supply, the output terminal of described acquisition module inserts the signal input part of single-chip microcomputer, and the signal output part of single-chip microcomputer inserts heating element through heating control module; Wherein acquisition module comprises the temperature sensor of installing near electric plate.

According to the preferred version of embodiment, what described heating element adopted is the PTC ceramic heater.Whether normally described acquisition module also comprises the current detection module of the power input that is serially connected in heating element, is used to detect size of current, to judge heating element operation.

Further, what current detection module adopted is current transformer, corresponding, is connected with light emitting diode as the fault display module at the output terminal of single-chip microcomputer.

Described temperature sensor is the thermistor that is positioned on the electric plate, and thermistor inserts single-chip microcomputer through the A/D change-over circuit.

Principle of work of the present utility model is, the described intelligent heater that is used for the locomotive brake gear gas path plate constitutes control circuit by single-chip microcomputer and expandable element, being described as follows of expandable element: thermistor cooperates A/D change-over circuit composition temperature sensor to gather environment temperature in real time, and this temperature data is delivered to single-chip microcomputer handle, handle by single-chip microcomputer again and draw steering order, through control the duty of heating element as the opto-coupler chip of heating control module.The concrete disposal route of single-chip microcomputer is: detected gas path plate temperature begins heating when being lower than the temperature threshold values of setting, stop heating when being higher than the temperature threshold values.Described temperature threshold values can be set in single-chip microcomputer as the case may be according to locomotive operation zone software programming; And show with the prompting user by pilot lamp.Adopt current transformer to detect whether operate as normal of heating element, then point out by pilot lamp if break down.Whole process need not human intervention.

The characteristics that are used for the intelligent heater of locomotive brake gear gas path plate described in the utility model are:

1. can real-time perception gas path plate temperature, the control reliability height;

2. control procedure robotization need not human intervention;

3. has the fault alarm prompting.

Description of drawings

Fig. 1 is the structural principle block diagram of embodiment;

Fig. 2 is the circuit theory diagrams of embodiment.

Embodiment

Below with reference to the drawings and specific embodiments the utility model is described in further details.

As shown in Figure 1, present embodiment proposes a kind of intelligent heater that is used for the locomotive brake gear gas path plate, comprise control circuit and heating element, wherein control circuit comprises power module, acquisition module, single-chip microcomputer and heating control module, the output terminal of described acquisition module inserts the signal input part of single-chip microcomputer, and the signal output part of single-chip microcomputer inserts heating element through heating control module.Wherein acquisition module comprises temperature sensor and current detection module.

To adopt with the barium titanate be the high-tech semiconductor functional ceramic PTC material of principal ingredient to heating element in the present embodiment, have resistance value along with temperature variation variation characteristic, can realize integrated air board is carried out heated at constant temperature.Temperature sensor adopts thermistor, is used to gather the gas path plate temperature, and sends to the single-chip microcomputer processing.Wherein thermistor adopts the paster encapsulation, is close to circuit board and installs, and is specially the centre position of level and vertical direction, to improve accuracy in detection; What current detection module adopted is current transformer, is responsible for detecting the heating element electric current, is pointed out as pilot lamp by the light emitting diode that is connected with the single-chip microcomputer output terminal when electric current excessive (short circuit) or too small (opening circuit); Single-chip microcomputer is the core of whole device, is responsible for data and logical process; The 24V direct supply that power module is responsible for that locomotive is provided transfers the 5V power supply of control circuit needs to; What heating control module adopted is opto-coupler chip, the duty of control heating element; Heating element is close to the gas path plate installation, to improve the efficiency of heating surface.Control circuit is installed on the gas path plate with separate modular, links to each other with lead with heating element, detects and control the heating element action in real time.

Claims (5)

1. intelligent heater that is used for the locomotive brake gear gas path plate, form by control circuit and heating element, it is characterized in that, described control circuit comprises that power module reaches acquisition module, single-chip microcomputer and the heating control module by its power supply, the output terminal of described acquisition module inserts the signal input part of single-chip microcomputer, and the signal output part of single-chip microcomputer inserts heating element through heating control module; Wherein acquisition module comprises the temperature sensor of installing near electric plate.

2. according to the described intelligent heater that is used for the locomotive brake gear gas path plate of claim 1, it is characterized in that what described heating element adopted is the PTC ceramic heater.

3. according to the described intelligent heater that is used for the locomotive brake gear gas path plate of claim 1, it is characterized in that described acquisition module also comprises the current detection module of the power input that is serially connected in heating element.

4. according to the described intelligent heater that is used for the locomotive brake gear gas path plate of claim 3, it is characterized in that what described current detection module adopted is current transformer, corresponding, be connected with the fault display module at the output terminal of single-chip microcomputer.

5. according to the described intelligent heater that is used for the locomotive brake gear gas path plate of one of claim 1-4, it is characterized in that described temperature sensor is the thermistor that is positioned on the electric plate, thermistor inserts single-chip microcomputer through the A/D change-over circuit.

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