CN216160812U

CN216160812U - 110V socket test fixture for locomotive garage

Info

Publication number: CN216160812U
Application number: CN202122152233.1U
Authority: CN
Inventors: 郝亮; 张心悦
Original assignee: Guangzhou Electrical Locomotive Co Ltd
Current assignee: Guangzhou Electrical Locomotive Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-04-01
Anticipated expiration: 2031-09-07

Abstract

A110V socket test tool for a locomotive garage comprises a test plug, a test cable and a test control box, wherein the test plug, the test cable and the test control box can be matched with a reserved DC110V socket for the garage; the test control box passes through the test cable and is connected with test plug, the test control box includes the box body, establishes test circuit in the box body, exposes the box body outside and with test circuit connection's display screen, work pilot lamp and test button, the test control box obtains the voltage parameter of DC110V socket for the storehouse and shows at the display screen through test plug. The test tool solves the problem that operation is inconvenient for one person due to limited operation space, and avoids potential safety hazards caused by misoperation; the output voltage of the DC110V socket for library can be directly measured, and whether the DC110V socket for library has a point error can be judged.

Description

110V socket test fixture for locomotive garage

Technical Field

The utility model relates to a test tool, in particular to a 110V socket test tool for a machine garage.

Background

The HXD3C type electric locomotive is a high-power alternating current transmission electric locomotive, during the design of the locomotive, when the locomotive is maintained in a line or a garage and no illumination source exists at night, a locomotive storage battery is used for providing power, a DC110V socket in the garage is reserved on both sides of a locomotive body and in a mechanical room for power supply output, whether the output of the DC110V power socket is normal or not needs to be tested in the low-voltage test stage of the locomotive, and at present, a digital multimeter is mainly used for directly measuring. The prior art has the following defects: 1) because of DC110V socket mounted position reason in the machinery warehouse, the space can only hold one person and measure, and during one person's operation, current digital multimeter operation is inconvenient, influences operating efficiency and safety. 2) The digital multimeter pointer is the moving part, must lean on the handheld fixed of operation personnel, easily because of misoperation, leads to storehouse to use DC110V socket positive negative pole short circuit, leads to personnel's operation to have the potential safety hazard.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a 110V socket testing tool for a locomotive garage, and solves the problem of inconvenience for one person to operate due to the limitation of an operation space; the problem of the potential occurrence positive negative pole short circuit, the potential safety hazard that appears that leads to because digital multimeter operation is unstable is solved.

In order to solve the technical problems, the technical scheme of the utility model is as follows: A110V socket test tool for a locomotive garage comprises a test plug, a test cable and a test control box, wherein the test plug, the test cable and the test control box can be matched with a reserved DC110V socket for the garage; the test control box passes through the test cable and is connected with test plug, the test control box includes the box body, establishes test circuit in the box body, exposes the box body outside and with test circuit connection's display screen, work pilot lamp and test button, the test control box obtains the voltage parameter of DC110V socket for the storehouse and shows at the display screen through test plug. The working principle of the utility model is as follows: under the low-voltage state, the tool testing button is in an open position, the testing plug is in butt joint with the DC110V socket for the garage on the locomotive, and the DC110V socket for the garage and the testing plug are both provided with error-proof coding pins, so that the connection error phenomenon cannot occur, and the connection is finished; when the test button is pressed, the voltage of the DC110V socket for the library at the moment is displayed on the LED display screen; when the display value is positive, the DC110V socket for the library is accurately connected and the voltage output is normal; when the display value is negative, the positive and negative poles of the DC110V socket for the library are opposite, but the voltage output is normal.

As a refinement, the test plug is a TLSAC250/15T control connector plug.

As an improvement, the test circuit comprises a direct current reverse connection prevention protection circuit, a direct current filter capacitor and an ICL test chip, wherein positive and negative currents sequentially pass through the direct current reverse connection prevention protection circuit and the direct current filter capacitor to be input into the ICL test chip, and are output to a display screen after being processed by a power supply of the ICL test chip.

As an improvement, the direct current reverse connection prevention protection circuit comprises a resistor R1, a resistor R2 and a field effect MOS transistor, wherein the resistor R2 is arranged between a positive electrode and a negative electrode, one end of the resistor R1 is connected with the positive electrode, the other end of the resistor R1 is respectively connected with one end of a resistor R2 and one end of a capacitor C0, the other end of the resistor R2 is connected with a gate of the field effect MOS transistor, a drain of the field effect MOS transistor is connected with the negative electrode, and a source of the field effect MOS transistor is connected with the other end of the capacitor C0.

Compared with the prior art, the utility model has the following beneficial effects:

the test tool solves the problem that operation is inconvenient for one person due to limited operation space, and avoids potential safety hazards caused by misoperation; the output voltage of the DC110V socket for library can be directly measured, and whether the DC110V socket for library has a point error can be judged.

Drawings

FIG. 1 is a schematic view of an electric locomotive.

FIG. 2 is a schematic view of the present invention.

Fig. 3 is a schematic diagram of the circuit of the present invention.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, the 110V socket test tool for the locomotive garage comprises a test plug 3 capable of being matched with a reserved DC110V socket 1 for the locomotive garage, a test cable 4 and a test control box 2, wherein the test control box 2 is connected with the test plug 3 through the test cable 4. The test control box 2 comprises a box body, a test circuit arranged in the box body, a display screen 21, a work indicator lamp 23 and a test button 22, wherein the display screen 21, the work indicator lamp 23 and the test button are exposed out of the box body and connected with the test circuit, and the test control box 2 obtains voltage parameters of the DC110V socket 1 for the library through the test plug 3 and displays the voltage parameters on the display screen 21. The test plug 3 is a TLSAC250/15T control connector plug, and both the library DC110V socket 1 and the test plug 3 are provided with error-proof coding pins, so that the error connection phenomenon cannot occur. The test circuit comprises a direct current reverse connection prevention protection circuit, a direct current filter capacitor and an ICL test chip, wherein positive and negative currents sequentially pass through the direct current reverse connection prevention protection circuit and the direct current filter capacitor to be input into the ICL test chip, and are output to the display screen 21 after being processed by a power supply of the ICL test chip. The direct current reverse connection prevention protection circuit comprises a resistor R1, a resistor R2 and a field effect MOS (metal oxide semiconductor) transistor, wherein the resistor R2 is arranged between a positive electrode and a negative electrode, one end of the resistor R1 is connected with the positive electrode, the other end of the resistor R1 is connected with one end of a resistor R2 and one end of a capacitor C0 respectively, the other end of the resistor R2 is connected with a grid electrode of the field effect MOS transistor, a drain electrode of the field effect MOS transistor is connected with the negative electrode, and a source electrode of the field effect MOS transistor is connected with the other end of the capacitor C0.

The working principle of the utility model is as follows: under the low-voltage state, the tool test button 22 is in an open position, and the test plug 3 is in butt joint with the library DC110V socket 1 on the locomotive to complete connection; when the test button 22 is pressed, the voltage of the socket 1 of the library DC110V at the moment is displayed on the LED display screen 21; when the display value is positive, the connection of the DC110V socket 1 for the library is accurate and the voltage output is normal; when the display value is negative, it indicates that the positive and negative poles of the socket 1 of the library DC110V are reversed, but the voltage output is normal.

Claims

1. The utility model provides a 110V socket test fixture for locomotive garage which characterized in that: the test system comprises a test plug, a test cable and a test control box, wherein the test plug, the test cable and the test control box can be matched with a reserved DC110V socket for a library of a locomotive; the test control box passes through the test cable and is connected with test plug, the test control box includes the box body, establishes test circuit in the box body, exposes the box body outside and with test circuit connection's display screen, work pilot lamp and test button, the test control box obtains the voltage parameter of DC110V socket for the storehouse and shows at the display screen through test plug.

2. The 110V socket test tool for the locomotive garage according to claim 1, wherein: the test plug is a TLSAC250/15T control connector plug.

3. The 110V socket test tool for the locomotive garage according to claim 1, wherein: the testing circuit comprises a direct current reverse connection prevention protection circuit, a direct current filter capacitor and an ICL testing chip, wherein positive and negative currents sequentially pass through the direct current reverse connection prevention protection circuit and the direct current filter capacitor to be input into the ICL testing chip, and are output to a display screen after being processed by a power supply of the ICL testing chip.

4. The 110V socket test tool for the locomotive garage according to claim 3, wherein: the direct current reverse connection prevention protection circuit comprises a resistor R1, a resistor R2 and a field effect MOS (metal oxide semiconductor) transistor, wherein the resistor R2 is arranged between a positive electrode and a negative electrode, one end of the resistor R1 is connected with the positive electrode, the other end of the resistor R1 is connected with one end of a resistor R2 and one end of a capacitor C0 respectively, the other end of the resistor R2 is connected with a grid electrode of the field effect MOS transistor, a drain electrode of the field effect MOS transistor is connected with the negative electrode, and a source electrode of the field effect MOS transistor is connected with the other end of the capacitor C0.