CN220105562U - HXD1D locomotive air conditioner control panel protection logic control function test fixture - Google Patents

HXD1D locomotive air conditioner control panel protection logic control function test fixture Download PDF

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Publication number
CN220105562U
CN220105562U CN202321034344.5U CN202321034344U CN220105562U CN 220105562 U CN220105562 U CN 220105562U CN 202321034344 U CN202321034344 U CN 202321034344U CN 220105562 U CN220105562 U CN 220105562U
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China
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air conditioner
control panel
conditioner control
current generator
switch
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CN202321034344.5U
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张振宇
张艳
丁楠
张会杰
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CRRC Luoyang Locomotive Co Ltd
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CRRC Luoyang Locomotive Co Ltd
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Abstract

The utility model provides a HXD1D locomotive air conditioner control panel protection logic control function test fixture which comprises a shell, a stabilized voltage supply, a CN2 direct current connector and an air conditioner operation panel, wherein the air conditioner operation panel is clamped on the upper surface of the shell, a temperature selection switch and a mode selection switch are arranged on the air conditioner operation panel, and a first current generator and a second current generator are arranged on the shell. The utility model adopts the current generator to simulate the fresh air temperature and the return air temperature when the air conditioner runs and fails, the simulated signals are collected through the analog quantity input expansion module on the PLC controller of the air conditioner control panel, the air conditioner control panel is arranged on the device and is in butt joint with the protection logic circuit interface of the existing air conditioner control system of the locomotive through the device, the protection logic control function test of the air conditioner control panel can be realized on the device, the design is reasonable, the use is simple and convenient, the test time can be greatly saved, and the test efficiency is improved.

Description

HXD1D locomotive air conditioner control panel protection logic control function test fixture
Technical Field
The utility model relates to a rail locomotive maintenance technology, in particular to a rail locomotive air conditioner control panel debugging maintenance, and specifically relates to a HXD1D locomotive air conditioner control panel protection logic control function test fixture.
Background
The air conditioner control panel of the HXD1D track locomotive is generally arranged in the middle of a locomotive control console, has a multi-path protection logic control function, and provides corresponding guarantee for riding comfort of the vehicle. In the vehicle overhaul, the protection logic control function test of the air conditioner control panel is generally based on the actual operation of the locomotive, namely, the locomotive air conditioner is started, and whether the protection logic control is normal or not is observed in the running state of the locomotive air conditioner; however, in actual operation, the elements or circuits controlled by the protection logic can only run when reaching the set temperature, and the air conditioner has longer heating and cooling time, so the detection of the protection logic control function of the existing air conditioner control panel has longer time consumption and low efficiency.
Disclosure of Invention
Aiming at the problems in the background technology, the utility model aims to provide a HXD1D locomotive air conditioner control panel protection logic control function test tool, which adopts a current generator to simulate the fresh air temperature and the return air temperature during the operation and the failure of an air conditioner, and the simulated signals are acquired through an analog quantity input expansion module of a PLC (programmable logic controller) on the air conditioner control panel. The air conditioner control panel is arranged on the device and is in butt joint with a protection logic circuit interface of the existing air conditioner control system of the locomotive through the device, so that the test of each logic control protection function of the air conditioner control panel can be realized at the same time, the test time is greatly saved, and the test efficiency is improved.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a HXD1D locomotive air conditioner control panel protection logic control function test fixture, includes casing, constant voltage power supply, CN2 direct current connector and air conditioner control panel, the air conditioner control panel card establish at the casing upper surface, have temperature selection switch and mode selection switch on the air conditioner control panel, CN2 direct current connector sets up in casing one side, it has live wire port, zero line port and the two corresponding wiring test ports of multiunit, constant voltage power supply set up inside the casing, CN2 direct current connector connects constant voltage power supply;
the shell is provided with a first current generator and a second current generator, the first current generator is used for simulating a temperature signal of the fresh air temperature transmitter, the second current generator is used for simulating a temperature signal of the return air temperature transmitter, and two paths of output signals of the simulation currents are respectively acquired by an analog quantity input expansion module of the air conditioner control panel PLC controller and converted into digital signals which are controlled by the operation of logic functions of the air conditioner control panel PLC controller;
the display screen A of the first current generator, the display screen B of the second current generator, the rotary button A of the first current generator and the rotary button B of the second current generator are all arranged on the surface of the shell; the power supply ports of the first current generator and the second current generator are connected with a CN2 direct current connector, and the output signal ports of the first current generator and the second current generator are respectively connected with an analog input expansion module of the PLC of the air conditioner control panel through the CN2 direct current connector;
the wiring ports of the temperature selection switch and the mode selection switch are respectively connected with an analog quantity input expansion module of the PLC of the air conditioner control panel through CN2 direct current connectors;
the shell body on be equipped with:
the EF fan overheat protection switch is connected with an EF fan overheat protection circuit on the air conditioner control panel through a CN2 direct current connector;
the high-voltage protection switch of the HP unit is connected with a high-voltage protection circuit of the HP unit on the air conditioner control panel through a CN2 direct-current connector;
the low-voltage protection switch of the LP unit is connected with a low-voltage protection circuit of the LP unit on an air conditioner control panel through a CN2 direct current connector;
the CF1 condensing fan protection switch is connected with a CF1 condensing fan protection circuit on the air conditioner control panel through a CN2 direct current connector;
the CF2 condensing fan protection switch is connected with a CF2 condensing fan protection circuit on the air conditioner control panel through a CN2 direct current connector.
The shell on still be equipped with fault signal pilot lamp, fault signal pilot lamp one end is connected constant voltage power supply's zero line port, and the other end passes through CN2 direct current connector and connects an output port of air conditioner control panel PLC controller.
The shell is also provided with a power switch and a power signal indicator lamp, and the power switch is connected with a live wire port of the stabilized power supply through an electric wire; one end of the power signal indicator lamp is connected with the power switch, and the other end of the power signal indicator lamp is connected with a zero line port of the stabilized voltage power supply.
The shell is also provided with an OTH electric heating overtemperature protection switch which is connected with an OTH electric heating overtemperature protection circuit on the air conditioner control panel through a CN2 direct current connector.
The first current generator and the second current generator are respectively provided with two paths of output signal ports, the two paths of output signal ports are respectively used for outputting different analog currents, and the two paths of output signal ports are respectively connected with an analog quantity input expansion module of the PLC of the air conditioner control panel.
The utility model has the beneficial effects that:
the utility model adopts the current generator to simulate the fresh air temperature and the return air temperature when the air conditioner operates and fails, the simulated signals are collected through the analog quantity input expansion module on the PLC controller of the air conditioner control panel, the air conditioner control panel is arranged on the device and is in butt joint with the protection logic circuit interface of the existing air conditioner control system of the locomotive through the device, the protection logic control function test of the air conditioner control panel can be realized on the device, the design is reasonable, the use is simple and convenient, the test time can be greatly saved, and the test efficiency is improved
Drawings
Fig. 1 is a top view of the present utility model.
Fig. 2 is a schematic diagram of the control principle of the present utility model.
Fig. 3 is a schematic diagram of the wiring of the present utility model.
In the figure: 1. EF ventilator overheat protection switch, 2, HP unit high voltage protection switch, 3, LP unit low voltage protection switch, 4, CF1 condensing fan protection switch, 5, CF2 condensing fan protection switch, 6, OTH electrical heating overtemperature protection switch, 7, fault signal indicator lamp, 8, CN2 direct current connector, 9, switch, 10, power signal indicator lamp, 11, display screen A,12, display screen B,13, rotary button A,14, rotary button B,15, temperature selection switch, 16, mode selection switch, 17, casing, 18, air conditioner control panel, 19, regulated power supply, 20, analog input expansion module, 21, first current generator, 22, second current generator.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-3, an HXD1D air conditioner control panel protection logic control function test fixture comprises a shell 17, a regulated power supply 19, a CN2 direct current connector 8 and an air conditioner control panel 18, wherein the air conditioner control panel 18 is clamped on the upper surface of the shell 17, a temperature selection switch 15 and a mode selection switch 16 are arranged on the air conditioner control panel 18, the CN2 direct current connector 8 is arranged on one side of the shell 17 and is provided with a live wire port, a zero wire port and a plurality of groups of two corresponding wiring ports, the regulated power supply 19 is arranged inside the shell 17, the CN2 direct current connector 8 is connected with the regulated power supply 19, the shell 17 is provided with a first current generator 21 and a second current generator 22, the first current generator 21 is used for simulating a temperature signal of a fresh air temperature transmitter, the second current generator 22 is used for simulating a temperature signal of a return air temperature transmitter, and two paths of analog current signals are respectively collected and converted into digital signals by an analog quantity input expansion module 20 of the air conditioner control panel controller; the display screen a11 of the first current generator 21 and the display screen B12 of the second current generator 22 are both clamped on the upper surface of the housing 17, and the rotary button a13 of the first current generator 21 and the rotary button B14 of the second current generator 22 are both mounted on the upper surface of the housing 17; the power supply ports of the analog quantity output expansion modules of the first current generator and the second current generator are connected with CN2 direct current connectors, and the output signal ports of the first current generator 21 and the second current generator 22 are respectively connected with an analog quantity input expansion module 20 of the PLC controller of the air conditioner control panel through CN2 direct current connectors 8; the wiring ports of the temperature selection switch 15 and the mode selection switch 16 are respectively connected with an analog input expansion module 20 of the PLC controller of the air conditioner control panel through CN2 direct current connectors; an EF ventilator overheat protection switch 1, an HP unit high-voltage protection switch 2, an LP unit low-voltage protection switch 3, a CF1 condensing fan protection switch and a CF2 condensing fan protection switch 5 are arranged on the shell 17; the EF fan overheat protection switch 1 is connected with an EF fan overheat protection circuit on an air conditioner control panel through a CN2 direct current connector 8, the HP unit high-voltage protection switch 2 is connected with an HP unit high-voltage protection circuit on the air conditioner control panel through the CN2 direct current connector 8, the LP unit low-voltage protection switch 3 is connected with an LP unit low-voltage protection circuit on the air conditioner control panel through the CN2 direct current connector 8, the CF1 condensing fan protection switch 4 is connected with a CF1 condensing fan protection circuit on the air conditioner control panel through the CN2 direct current connector 8, and the CF2 condensing fan protection switch 5 is connected with a CF2 condensing fan protection circuit on the air conditioner control panel through the CN2 direct current connector 8.
In the above structure, the first current generator 21 and the second current generator 22 are two-wire current generators, which are mature products on the market together with the PLC controller of the air conditioner control panel, and the connection between the analog input expansion module 20 of the PLC controller of the air conditioner control panel and the output signal ports of the first current generator 21 and the second current generator 22 is a prior art, which is not described herein again.
The air conditioner control panel 18 adopts an HXD1D locomotive air conditioner control panel, the structure of the HXD1D locomotive air conditioner control panel is the prior art, and the HXD1D locomotive air conditioner control panel comprises an EF ventilator overheat protection circuit, an HP unit high-voltage protection circuit, an LP unit low-voltage protection circuit, a CF1 condensing fan protection circuit and a CF2 condensing fan protection circuit, wherein input ports of the protection circuits are respectively connected with a PLC (programmable logic controller) of the air conditioner control panel, and output ports are respectively connected with protection switch circuits corresponding to locomotive air conditioner units and are used for outputting PLC instructions so that corresponding protection switches act.
The connection ports of the temperature selection switch and the mode selection switch are respectively connected with an analog input expansion module 20 of the PLC of the air conditioner control panel through CN2 direct current connectors, and are self connection modes of the air conditioner control panel.
The principle of the utility model is as follows: the analog input expansion module 20 of the air conditioner control panel PLC controller transmits normal current signals to the first current generator 21 and the second current generator 22, the first current generator 21 and the second current generator 22 simulate fresh air temperature signals collected by a fresh air temperature sensor and return air temperature signals collected by a return air temperature sensor respectively, the temperature signals are adjusted by the rotary button A13 and the rotary button B14, the analog input expansion module 20 converts the collected analog current signals into digital signals and then transmits the digital signals to the air conditioner control panel PLC controller, if a certain protection switch acts, the air conditioner control panel PLC controller outputs fault signals, and the fault indicator lights are turned on through a fault signal output circuit connected with the fault indicator lights to prompt test results.
The application method of the utility model is as follows: after the utility model is assembled, an EF ventilator overheat protection switch 1, an HP unit high-voltage protection switch 2, an LP unit low-voltage protection switch 3, a CF1 condensing fan protection switch and a CF2 condensing fan protection switch 5 are correspondingly connected with protection logic control circuits on an air conditioner control panel one by one through a CN2 direct current connector 8; the power supply is turned on, a protection logic control circuit to be measured is turned on through a specific protection switch, different air conditioner operation modes are selected through a temperature selection switch 15 and a mode selection switch 16, for example, whether an EF ventilator overheat protection circuit is normal or not is tested, a refrigeration mode and the temperature are selected to be 26 degrees, at the moment, a rotary button A13 and a rotary button B14 are manually adjusted, so that two current generators respectively simulate a fresh air temperature signal collected by a fresh air temperature sensor and a return air temperature signal collected by a return air temperature sensor, when the simulated temperature signal exceeds a preset signal threshold, a specific protection switch is turned off, a fault signal indicator lamp 7 on a shell 7 is on, the protection control logic of the protection logic control circuit corresponding to the protection switch is normal, if the fault signal indicator lamp 7 is not on, the protection control logic of the circuit is abnormal.
The shell 17 is also provided with an OTH electric heating overtemperature protection switch 6, and the OTH electric heating overtemperature protection switch 6 is connected with an OTH electric heating overtemperature protection circuit on an air conditioner control panel through a CN2 direct current connector 8. The OTH electric heating overtemperature protection switch 6 corresponds to a plateau car in the HXD1D locomotive, and an OTH electric heating overtemperature protection circuit is arranged on an air conditioner control panel of the plateau car.
The shell 17 on still be equipped with fault signal pilot lamp 7, fault signal pilot lamp 7 one end is connected the zero line port of constant voltage power supply 19, and the other end passes through CN2 direct current connector 8 and connects an output port of air conditioner control panel PLC controller, and this output port is controlled by air conditioner control panel PLC controller, can make fault signal pilot lamp 7 switch on the luminous according to instruction output current signal.
The shell 17 is also provided with a power switch 9 and a power signal indicator lamp 10, wherein the power switch 9 is connected with a live wire port of a stabilized voltage supply 19 through an electric wire; one end of the power signal indicator lamp is connected with the power switch, and the other end of the power signal indicator lamp is connected with a zero line port of the stabilized voltage power supply 19.
The first current generator 21 and the second current generator 22 are two-wire 4-20mA current generators, the first current generator 21 and the second current generator 22 are provided with two paths of output signal ports, the two paths of output signal ports are respectively used for outputting different analog currents, and the two paths of output signal ports are respectively connected with the analog quantity input expansion module 20 of the PLC controller of the air conditioner control panel.
The utility model is not described in detail in the prior art.

Claims (5)

1. The utility model provides a HXD1D locomotive air conditioner control panel protection logic control function test fixture, includes casing (17), regulated power supply (19), CN2 direct current connector (8) and air conditioner control panel, the air conditioner control panel card establish at casing (17) upper surface, have temperature selection switch (15) and mode selection switch (16) on the air conditioner control panel, CN2 direct current connector (8) set up in casing (17) one side, it has fire wire port, zero line port and the wiring test port that multiunit two-to-two corresponds, regulated power supply (19) set up inside casing (17), CN2 direct current connector (8) connect regulated power supply (19), characterized by:
a first current generator (21) and a second current generator (22) are arranged in the shell (17), the first current generator (21) is used for simulating a temperature signal of a fresh air temperature transmitter, the second current generator (22) is used for simulating a temperature signal of a return air temperature transmitter, output signals of two paths of analog currents are respectively collected by an analog quantity input expansion module (20) of an air conditioner control panel PLC controller and converted into digital signals, and the digital signals are controlled by the operation of logic functions of the air conditioner control panel PLC controller;
the display screen A (11) of the first current generator (21), the display screen B (12) of the second current generator (22), the rotary button A (13) of the first current generator (21) and the rotary button B (14) of the second current generator (22) are all arranged on the surface of the shell (17); the power supply ports of the first current generator (21) and the second current generator (22) are connected with a CN2 direct current connector (8), and the output signal ports of the first current generator (21) and the second current generator (22) are respectively connected with an analog input expansion module (20) of the PLC of the air conditioner control panel through the CN2 direct current connector (8);
the wiring ports of the temperature selection switch (15) and the mode selection switch (16) are respectively connected with an analog quantity input expansion module (20) of the PLC controller of the air conditioner control panel through a CN2 direct current connector (8);
the shell (17) is provided with:
an EF ventilator overheat protection switch (1), wherein the EF ventilator overheat protection switch (1) is connected with an EF ventilator overheat protection circuit on an air conditioner control panel through a CN2 direct current connector (8);
the high-voltage protection switch (2) of the HP unit is connected with a high-voltage protection circuit of the HP unit on the air conditioner control panel through a CN2 direct-current connector (8);
the low-voltage protection switch (3) of the LP unit is connected with a low-voltage protection circuit of the LP unit on an air conditioner control panel through a CN2 direct-current connector (8);
the CF1 condensing fan protection switch (4), wherein the CF1 condensing fan protection switch (4) is connected with a CF1 condensing fan protection circuit on an air conditioner control panel through a CN2 direct current connector (8);
and the CF2 condensing fan protection switch (5) is connected with a CF2 condensing fan protection circuit on the air conditioner control panel through a CN2 direct current connector (8).
2. The HXD1D locomotive air conditioner control panel protection logic control function test fixture as defined in claim 1, wherein: the shell (17) is also provided with an OTH electric heating overtemperature protection switch (6), and the OTH electric heating overtemperature protection switch (6) is connected with an OTH electric heating overtemperature protection circuit on an air conditioner control panel through a CN2 direct current connector (8).
3. The HXD1D locomotive air conditioner control panel protection logic control function test fixture as defined in claim 1, wherein: the shell (17) is also provided with a fault signal indicator lamp (7), one end of the fault signal indicator lamp (7) is connected with a zero line port of a stabilized voltage supply (19), and the other end of the fault signal indicator lamp is connected with an output port of the air conditioner control panel PLC controller through a CN2 direct current connector (8).
4. The HXD1D locomotive air conditioner control panel protection logic control function test fixture as defined in claim 1, wherein: the shell (17) is also provided with a power switch (9) and a power signal indicator lamp (10), and the power switch (9) is connected with a live wire port of a stabilized voltage power supply (19) through an electric wire; one end of the power signal indicator lamp is connected with the power switch, and the other end of the power signal indicator lamp is connected with a zero line port of the stabilized power supply (19).
5. The HXD1D locomotive air conditioner control panel protection logic control function test fixture as defined in claim 1, wherein: the first current generator (21) and the second current generator (22) are respectively provided with two paths of output signal ports, the two paths of output signal ports are respectively used for outputting different analog currents, and the two paths of output signal ports are respectively connected with the analog quantity input expansion module (20).
CN202321034344.5U 2023-05-04 2023-05-04 HXD1D locomotive air conditioner control panel protection logic control function test fixture Active CN220105562U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321034344.5U CN220105562U (en) 2023-05-04 2023-05-04 HXD1D locomotive air conditioner control panel protection logic control function test fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321034344.5U CN220105562U (en) 2023-05-04 2023-05-04 HXD1D locomotive air conditioner control panel protection logic control function test fixture

Publications (1)

Publication Number Publication Date
CN220105562U true CN220105562U (en) 2023-11-28

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ID=88848462

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321034344.5U Active CN220105562U (en) 2023-05-04 2023-05-04 HXD1D locomotive air conditioner control panel protection logic control function test fixture

Country Status (1)

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CN (1) CN220105562U (en)

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