Railway air-conditioning unit connector energizing test device

Abstract

This invention discloses a power-on testing device for connectors of air conditioning units in rail passenger vehicles, comprising a housing, an ammeter, rollers, a socket, and several plugs. A square slot is formed on the front face of the housing, into which the ammeter is embedded. Casters are connected to the lower face of the housing. Multiple plugs are electrically connected to the left and right faces of the housing, respectively. A terminal block is electrically connected to the socket wiring, located at the rear of the housing. The ammeter is crimped onto the terminal block, which is connected to each plug via jumpers. The device displays the three-phase current values ​​to determine the status of the air conditioning unit, preventing potential damage such as component burnout due to malfunction. It can quickly measure the three-phase current values ​​of the compressor, fan, condenser fan, and preheater, improving work efficiency. The device has a compact structure, occupies little space, is easy to store, and is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of electrical testing technology, and in particular to an electrical testing device for connectors of air conditioning units in rail passenger cars. Background Technology

[0002] The overhaul process of unit-type air conditioning units in rail passenger cars includes air conditioning unit preparation, refrigeration system assembly, vacuuming and refrigerant charging, power-on testing, and performance testing. Because the models of air conditioning units in passenger cars differ, the connectors also vary. Currently, there are eight common types of connectors. During power-on and performance testing, it is necessary to select the appropriate connector based on the specific air conditioning unit model, and then connect the air conditioning unit to the test control cabinet, making the process quite cumbersome. Currently, most maintenance units use wiring with connector plugs, crimping one end to the terminal block of the air conditioning control cabinet, and crimping the other end to the connector plug according to the pin definition drawing. Then, "intermediate conversion wiring" is made according to the connectors for different air conditioning models. This involves crimping one end of the wiring to the connector socket, and crimping the other end to the corresponding connector plug for different air conditioning unit models, achieving an intermediate conversion function. However, some air conditioning units have special connector plugs and sockets, requiring infrequent intermediate wiring conversions. Furthermore, the connectors and wiring are quite long, taking up considerable space, making storage difficult, and inconvenient to access. This process can damage the connectors and wiring, leading to material waste. Additionally, during the power-on test of the air conditioning unit, the three-phase current values ​​of the fan, compressor, condenser fan, and preheater need to be tested. Existing power-on testing equipment is a standard air conditioning control cabinet, requiring a digital multimeter to measure the current, measuring each group of wires according to the drawings, and recording the current value for each group. This method is cumbersome, sometimes requiring two people to record all the current values. Moreover, if the air conditioning unit is running for a period of time before measuring the operating current, and a phase is missing, the components may have already burned out during this process, preventing timely power shut-off and posing a product quality and safety hazard. Furthermore, because different types of train air conditioning units have different styles, staff must carefully identify and handle them before use. How to design a power-on test device for the air conditioning unit connector of a rail passenger car, so that the air conditioning unit connector can be directly powered on after the train enters the depot, allowing the operator to complete the test independently, and ensuring that the original air conditioning unit components can be replaced in time during the running time. Summary of the Invention

[0003] This invention provides a power-on testing device for the connector of an air conditioning unit in a rail passenger car, which facilitates handling by staff and integrates the connector. To achieve the above objectives, this invention adopts the following technical solution:

[0004] This invention provides a power-on test device for the connector of an air conditioning unit in a rail passenger car, comprising: a housing, an ammeter, rollers, a socket, and several plugs; the front end face of the housing has a square slot, the ammeter is embedded inside the square slot, and the lower end face of the housing is connected to casters;

[0005] The left and right ends of the enclosure are electrically connected to multiple plugs respectively; the socket is electrically connected to a terminal block located at the rear of the enclosure; the socket is electrically connected to an ammeter, which is crimped onto the terminal block; and the terminal block is connected to each plug via a jumper.

[0006] Furthermore, the plugs are categorized as follows: Qinghai-Tibet power generation vehicle plug, BST25T plain vehicle plug, BST25T Qinghai-Tibet vehicle plug, DC600V 25T type plug, DC600V power supply XL25G / XL25T type plug, 380V power supply 25B / 25G / 25K / 25T type plug, Qinghai-Tibet vehicle plug, Qinghai-Tibet power generation vehicle plug, and official vehicle plug.

[0007] Furthermore, the lower end of the left side face of the housing is electrically connected to a BST25T Qinghai-Tibet train plug, and the BST25T Qinghai-Tibet train plug is provided with an output port, and an aviation connector socket is placed inside the output port.

[0008] Furthermore, the BST25T plain vehicle plug is internally equipped with a first type of plain vehicle output plug, a second type of plain vehicle output plug, a third type of plain vehicle output plug, a fourth type of plain vehicle output plug, a fifth type of plain vehicle output plug, and a sixth type of plain vehicle output plug.

[0009] Furthermore, the DC600V25T plug is internally provided with a first type of winding connector, a second type of winding connector, and a third type of winding connector.

[0010] Furthermore, an emergency power-off switch is electrically connected to the end face of the enclosure, located on the right side of the socket.

[0011] Furthermore, a terminal block is connected to the rear end face of the housing, a wiring socket is electrically connected to the upper end face of the terminal block, and terminal block fixing connectors are placed at both ends of the terminal block.

[0012] Furthermore, a socket is electrically connected to the upper end of the left side face of the enclosure, the socket is provided with a test bench connection port, and an aviation connector socket is placed inside the test bench connection port.

[0013] The technical solution of this invention has the following advantages over existing technologies: it integrates all connectors into one unit, solving the problem of wasted replacements due to wiring protection and damage, and addressing the issue of connecting cables occupying a large amount of space and being difficult to store. It also allows for selection of appropriate models based on nameplates, improving work efficiency.

[0014] This device can quickly determine the status of an air conditioning unit by displaying the three-phase current values ​​on the converter, preventing potential damage to components caused by prolonged malfunctions. It can rapidly measure the three-phase current values ​​of the compressor, fan, condenser fan, and preheater, improving work efficiency. The device has a compact structure, occupies little space, is easy to store, and is convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation of a power-on test device for a rail passenger car air conditioning unit connector according to the present invention;

[0016] Figure 2 This is a front view schematic diagram of a power-on test device for a connector of an air conditioning unit in a rail passenger car according to the present invention;

[0017] Figure 3 This is a left-side schematic diagram of a power-on test device for a connector of an air conditioning unit in a rail passenger vehicle according to the present invention;

[0018] Figure 4 This is a right-side schematic diagram of a power-on test device for a connector of an air conditioning unit in a rail passenger vehicle according to the present invention;

[0019] Attached label: 1-Box, 2-Ammeter, 3-Roller, 4-Socket, 5-Qinghai-Tibet power generator plug, 6-BST25T plain vehicle plug, 7-BST25T Qinghai-Tibet vehicle plug, 8-DC600V 25T plug, 9-DC600V power supply XL25G / XL25T plug, 10-380V power supply 25B / 25G / 25K / 25T plug, 11-Qinghai-Tibet vehicle plug, 12-Official vehicle plug. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-4 As shown, the present invention provides a power-on test device for the connector of a rail passenger car air conditioning unit, comprising: a housing 1, an ammeter 2, a roller 3, a socket 4, a Qinghai-Tibet power generation car plug 5, a BST25T plain car plug 6, a BST25T Qinghai-Tibet car plug 7, a DC600V 25T type plug 8, a DC600V power supply XL25G / XL25T type plug 9, a 380V power supply 25B / 25G / 25K / 25T type plug 10, a Qinghai-Tibet car plug 11, and a public vehicle plug 12, and 13 terminal blocks.

[0022] The front end face of the housing 1 is provided with a square slot, and an ammeter 2 is embedded inside the square slot. Casters 3 are connected to the lower end face of the housing 1.

[0023] The left and right ends of the enclosure 1 are electrically connected to socket 4, Qinghai-Tibet power generation vehicle plug 5, BST25T plain vehicle plug 6, BST25T Qinghai-Tibet vehicle plug 7, DC600V 25T type plug 8, DC600V power supply XL25G / XL25T type plug 9, 380V power supply 25B / 25G / 25K / 25T type plug 10, Qinghai-Tibet vehicle plug 11 and official vehicle plug 12 respectively;

[0024] The terminal block 13 is located on the rear side of the housing 1. The socket 4 is electrically connected to the terminal block 13. The socket 4 is electrically connected to the ammeter 2. The ammeter 2 is crimped onto the terminal block 13. The terminal block 13 uses jumpers to bridge and connect various types of plugs.

[0025] Specifically, taking one test model as an example, the control power cord plug of the air conditioning control cabinet on the test bench is connected to socket 4 (which is the test bench connection 4; the Qinghai-Tibet power generator plug 5 is also an output port). Since the wiring of socket 4 is already connected inside the enclosure 1 via terminal block 13, it is only necessary to connect the air conditioning unit connector socket to the 380V power supply 25B / 25G / 25K / 25T type plug 10 representing the model of the air conditioning unit in enclosure 1 to conduct the test. At this time, the connector energizing device three-phase ammeter 2 is energized. The weak wind switch of the ventilation fan is turned on, and the three-phase current of the weak wind, the three-phase current of the #1 preheater, and the three-phase current of the #2 preheater are displayed on the three-phase ammeter and recorded. The strong wind switch of the ventilation fan is turned on, and the three-phase current of the strong wind, the three-phase current of the #1 condenser fan, and the three-phase current of the #2 condenser fan (cooling capacity of 40KW / 45KW / 53KW air conditioning unit) are displayed on the three-phase ammeter and recorded, until the power-on test is completed.

[0026] If the distance is too far, the device can be moved to a suitable position, and finally the power supply of the air conditioning control cabinet can be turned on for testing.

[0027] If a phase loss occurs, the corresponding three-phase ammeter readings will be abnormal. The abnormal readings can be used to quickly respond, cut off the power supply, and prevent damage to the air conditioning unit components.

[0028] The upper end of the left side face of the housing 1 is electrically connected to a socket 4, which is provided with a test bench connection port, and an aviation connector socket is placed inside the test bench connection port.

[0029] Specifically, the control power supply plug of the air conditioning control cabinet of the test bench is connected to socket 4 (that is, the test bench connection 4 and the Qinghai-Tibet power generator plug 5 are both output ports).

[0030] The lower end of the left side face of the housing 1 is electrically connected to a BST25T Qinghai-Tibet train plug 7. Each of the BST25T Qinghai-Tibet train plug 7 has an output port, and an aviation connector is placed inside the output port.

[0031] Specifically, the control power supply plug of the air conditioning control cabinet of the test bench is connected to socket 4 (that is, the test bench connection 4 and the BST25T Qinghai-Tibet train plug 7 are both output ports).

[0032] The BST25T plain vehicle plug 6 is internally equipped with a first type of plain vehicle output plug, a second type of plain vehicle output plug, a third type of plain vehicle output plug, a fourth type of plain vehicle output plug, a fifth type of plain vehicle output plug, and a sixth type of plain vehicle output plug.

[0033] Specifically, the control power supply plug of the air conditioning control cabinet of the test bench is connected to socket 4. Since there are many models of BST25T plain car plug 6, 6 output plugs are selected. The staff can check the corresponding connector of the EMU for testing.

[0034] The DC600V25T plug 8 is internally equipped with a first type of winding connector, a second type of winding connector, and a third type of winding connector.

[0035] Specifically, the control power cord plug of the air conditioning control cabinet of the test bench is connected to socket 4. Because the output wire of DC600V25T type plug 8 is wound in a different way, the staff can check the corresponding connector of the EMU for testing.

[0036] An emergency power-off switch is electrically connected to the end face of the housing 1, located to the right of the socket 4.

[0037] Specifically, if a phase loss occurs, the corresponding three-phase ammeter readings will be abnormal. The abnormal readings can be used to quickly respond, cut off the power supply, and prevent damage to the air conditioning unit components.

[0038] The rear end face of the housing 1 is connected to a terminal block 13, the upper end face of the terminal block is electrically connected to a wiring socket, and terminal block fixing connectors are placed at both ends of the terminal block.

[0039] Specifically, the wiring of socket 4 is already connected inside the enclosure 1 via terminal block 13. The test can be performed by simply connecting the air conditioning unit connector socket to the 380V power supply 25B / 25G / 25K / 25T plug 10 of the enclosure 1, which represents the model of the air conditioning unit.

[0040] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A power-on test device for a connector of an air conditioning unit in a rail passenger car, characterized in that, include: The enclosure includes a housing, an ammeter, casters, a socket, and several plugs; the front face of the housing has a square slot in which the ammeter is embedded, and casters are connected to the lower face of the housing. The left and right ends of the enclosure are electrically connected to multiple plugs respectively; the socket is electrically connected to a terminal block, which is located at the rear of the enclosure; the socket is electrically connected to an ammeter, which is crimped onto the terminal block; and the terminal block is connected to each plug via a jumper. The plugs are categorized as follows: Qinghai-Tibet power generation vehicle plug, BST25T plain vehicle plug, BST25T Qinghai-Tibet vehicle plug, DC600V 25T type plug, DC600V power supply XL25G / XL25T type plug, 380V power supply 25B / 25G / 25K / 25T type plug, Qinghai-Tibet vehicle plug, Qinghai-Tibet power generation vehicle plug, and official vehicle plug. The lower end of the left side face of the housing is electrically connected to a BST25T Qinghai-Tibet train plug. The BST25T Qinghai-Tibet train plug is provided with an output port, and an aviation connector is placed inside the output port.

2. The power-on test device for the connector of the air conditioning unit of a rail passenger car according to claim 1, characterized in that, The BST25T plain vehicle plug is equipped with plain vehicle type 1 output plug, plain vehicle type 2 output plug, plain vehicle type 3 output plug, plain vehicle type 4 output plug, plain vehicle type 5 output plug and plain vehicle type 6 output plug respectively.

3. The power-on test device for the connector of the air conditioning unit of a rail passenger car according to claim 1, characterized in that, The DC600V25T plug is internally equipped with a first type of winding connector, a second type of winding connector, and a third type of winding connector.

4. The power-on test device for the connector of the air conditioning unit of a rail passenger car according to claim 1, characterized in that, An emergency power-off switch is electrically connected to the end face of the enclosure, located to the right of the socket.

5. The power-on test device for the connector of a rail passenger car air conditioning unit according to claim 1, characterized in that, The rear end face of the enclosure is connected to a terminal block, the upper end face of the terminal block is electrically connected to a wiring socket, and terminal block fixing connectors are placed at both ends of the terminal block.

6. The power-on test device for the connector of a rail passenger car air conditioning unit according to claim 1, characterized in that, The upper end of the left side face of the enclosure is electrically connected to a socket, which is provided with a test bench connection port, and an aviation connector socket is placed inside the test bench connection port.

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