CN213275828U

CN213275828U - General switching test equipment

Info

Publication number: CN213275828U
Application number: CN202021301119.XU
Authority: CN
Inventors: 刘晓龙; 顾海月; 朱东旭
Original assignee: Beijing Andawell Mechanical Maintenance Co ltd
Current assignee: Beijing Andawell Mechanical Maintenance Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-05-25
Anticipated expiration: 2030-07-06

Abstract

A universal switching test device comprises a case, a control panel and a connecting cable; the control panel is arranged on the case; the control panel is provided with a power switch, a cable connecting port, a component testing hole and a power access port; the power switch is connected with a power inlet of the tested component and provides a working power supply for the tested component; the tested part is connected with the cable connecting port through the connecting cable, and the contact pins in the cable connecting port are correspondingly connected with the part testing holes one by one. The utility model designs a unified control panel, which is simple to operate and has good human-computer interaction; the test method has the advantages of improving the convenience of component test and the accuracy of test results, effectively improving the maintenance work efficiency, reducing the maintenance period, the cost and the probability of human errors, and improving the safety and the reliability of the test process.

Description

General switching test equipment

Technical Field

The utility model relates to an aircraft parts maintenance field especially relates to a general switching test equipment.

Background

At present, no comprehensive universal switching test equipment for insulation and conduction tests of civil aircraft parts is available in China. In the actual test procedure, operating personnel need be with every contact pin one-to-one connecting cable on the electric plug, and operation process is loaded down with trivial details, and when connecting cable was more, the mistake appeared easily, need test repeatedly to there is the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a general switching test equipment to solve the aforementioned problem that exists among the prior art.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a universal switching test device comprises a case, a control panel and a connecting cable; the control panel is arranged on the case; the control panel is provided with a power switch, a cable connecting port, a component testing hole and a power access port;

the power supply access port is connected with a power supply; the power switch is connected with a power input end of the tested component and provides a working power supply for the tested component; the tested part is connected with the cable connecting port through the connecting cable, and the contact pins in the cable connecting port are correspondingly connected with the part testing holes one by one.

Preferably, the device also comprises a power supply test hole; the power supply testing hole is connected between the power supply switch and the tested component.

Preferably, the cable connection port switches a pin of an electrical plug in the device under test to the device test hole.

Preferably, the connecting cable is provided with different types of connecting cables according to the type of the electric plug of the component to be tested.

Preferably, the cable connecting port is a 26-pin military aviation connector.

The utility model has the advantages that: the utility model discloses a universal switching test device, which can convert the contact pin on the electric connector of the tested part to the control panel of the test device through a connecting cable, and the direct operation panel can be used during the test, thereby improving the convenience of the part test and the accuracy of the test result, and the test device can also select the cable which is in line with the type of the accessory plug, thereby testing accessories of different types and achieving the universal purpose; the utility model designs a unified control panel, which is simple to operate and has good human-computer interaction; the maintenance work efficiency is effectively improved, the maintenance period, the cost and the probability of human errors are reduced, and the safety and the reliability of the test process are improved.

Drawings

FIG. 1 is a front panel view of a universal transition test apparatus;

FIG. 2 is a diagram of a rear panel of the universal transition test apparatus;

FIG. 3 is a circuit diagram of a universal switching test device power switch and test hole;

FIG. 4 is a pin connection diagram of a universal transition test device;

fig. 5 is a functional diagram of the universal switchover testing device.

In the figure, 1-power supply main switch, 2-cable connector, 3-component test hole, 4-DC circuit indicator light, 5-DC main switch, 6-DC power supply direction change-over switch, 7-DC inching change-over switch, 8-DC inching control switch, 9-DC power supply forward power supply test hole, 10-DC power supply reverse power supply test hole, 11-DC circuit negative electrode test hole, 12-AC circuit indicator light, 13-AC main switch, 14-AC power supply direction change-over switch, 15-single-phase/three-phase change-over switch, 16-AC inching change-over switch, 17-AC inching control switch, 18-AC power supply forward power supply test hole, 19-AC power supply reverse power supply test hole, 20-AC circuit B line positive electrode test hole, 21-AC circuit C line positive electrode test hole, 22-AC circuit negative electrode test hole, 23-three-phase 115VAC (400Hz) power interface, 24-DC power interface, 25-220 VAC (50Hz) AC power interface, and 26-grounding connecting wire column.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

A universal switching test device comprises a case, a control panel and a connecting cable; the control panel is arranged in the chassis; the control panel comprises a main panel and a rear panel, the main panel comprises a power switch, a cable connecting port 2, a component testing hole 3 and a power testing hole as shown in figure 1, one end of the power switch is connected with a power supply, and the other end of the power switch is connected with the power testing hole and then connected with a power input end of a component to be tested to provide a working power supply for the component to be tested; the power switch comprises a power main switch, a switch of a direct current circuit and a switch of an alternating current circuit, the power main switch controls the on-off of the whole circuit, the switch of the direct current circuit controls a direct current power supply connected to the component to be tested, and the switch of the alternating current circuit controls an alternating current power supply connected to the component to be tested; the connecting cable connects a contact pin in the electric plug of the component to be tested to the cable connecting port 2; the cable connecting port 2 is connected with the component testing holes 3, the contact pins of the cable connecting port 2 are in one-to-one correspondence with the testing holes in the component testing holes 3, and the contact pins of the electric plug of the component to be tested are correspondingly connected to the testing holes in the component testing holes 3 for testing the component to be tested; the rear panel is shown in fig. 2 and includes a power supply connector, and the power supply connector is connected to a working power supply to supply the working power supply to the component to be tested and the universal switching test device.

As shown in fig. 1, the power switches include a main power switch 1, a main dc switch 5, a main ac switch 13, a dc jog control switch 8, a dc jog switch 7, a dc power supply direction selector switch 6, an ac jog control switch 17, an ac jog switch 16, an ac power supply direction selector switch 14, and a single-phase/three-phase selector switch 15; the power supply test holes comprise a direct current power supply forward power supply test hole 9, a direct current power supply reverse power supply test hole 10, a direct current circuit negative electrode test hole 11, an alternating current power supply forward power supply test hole 18, an alternating current power supply reverse power supply test hole 19, an alternating current circuit B wire positive electrode test hole 20, an alternating current circuit C wire positive electrode test hole 21 and an alternating current circuit negative electrode test hole 22; as shown in fig. 2, the power inlet includes a three-phase 115VAC (400Hz) power interface 23, a 220VAC (50Hz) ac power interface 25, a dc power interface 24, and a ground connection post 26;

a schematic diagram of the connection between the power switch and the power test socket is shown in fig. 3, where JC1 represents a dc master switch 5, JC2 represents an ac master switch 13, JC3 represents a single-phase/three-phase change-over switch 15, JC4 represents a dc power supply direction change-over switch 6, JC5 represents an ac power supply direction change-over switch 14, JC6 represents a dc jog control switch 8, JC7 represents an ac jog control switch 17, JC8 represents a dc jog change-over switch 7, and JC9 represents an ac jog change-over switch 16; the direct current main switch 5 is connected with a direct current power supply, the direct current inching control switch 8 is connected with the direct current inching selector switch 7 in parallel, one end of the direct current inching control switch is connected with the direct current main switch 5, and the other end of the direct current inching control switch is connected with the direct current power supply direction selector switch 6; the direct current power supply direction change-over switch 6 is respectively connected with the direct current forward power supply testing hole and the direct current circuit reverse power supply testing hole; the direct current circuit negative electrode test hole 11 is directly connected with the negative electrode of the direct current power supply; the ac main switch 13 is connected to an ac power interface, the ac circuit switch is connected in parallel to A, B and a three-phase line C of an ac circuit, respectively, the ac inching control switch 17 and the ac inching selector switch 16 are connected in parallel, and are connected between the ac main switch 13 and the ac power supply direction selector switch 14 connected to the line a; the AC main switch 13 connected in the B line and the C line is respectively connected with one single-phase/three-phase change-over switch 15; the alternating current power supply direction switch 14 is respectively connected with the alternating current power supply forward power supply testing hole 18 and the alternating current power supply reverse power supply testing hole 19; the single-phase/three-phase change-over switch 15 connected with the B line of the alternating current power supply is respectively connected with the circuit B line positive electrode test hole and the alternating current circuit negative electrode test hole 22; the single-phase/three-phase change-over switch 15 connected to the C line of the ac power supply is connected to the circuit C line positive electrode test hole and the ac circuit negative electrode test hole 22, respectively.

As shown in fig. 1, the component test holes 3 include 26 test holes, the connection relationship between the component test holes 3 and the cable connectors 2 is shown in fig. 4, and the test holes in the component test holes 3 correspond to the pins of the cable connectors 2 one to one; still wrap direct current circuit pilot lamp 4 and alternating current circuit pilot lamp 12 on the main panel, direct current circuit pilot lamp 4 install in behind the direct current master switch in the direct current circuit, alternating current circuit pilot lamp 12 install in behind the alternating current master switch 13 in the alternating current circuit, be used for instructing direct current circuit or whether the alternating current circuit communicates.

The chassis of the universal switching test equipment adopts a 2U chassis, has the characteristics of small volume and quick heat dissipation, and the cable connector 2 adopts a Y50EX-1626 type 26-needle military aviation connector, so that the test requirements of most civil aircraft accessories can be met; and the connecting cable can be made into connecting cables of different models according to the electric plug of the tested component, so that the tested component of various different models can be tested.

The working principle of the universal switching test equipment is as follows: the power supply connector is connected with a power supply, the three-phase 115VAC (400Hz) power supply interface 23 provides an alternating current power supply for the component to be tested, and the 220VAC (50Hz) alternating current power supply interface 25 provides a direct current power supply for the universal switching test equipment and the direct current power supply interface 24; connecting the component to be tested to the cable connecting port 2 through the connecting cable, and transferring the electric plug pin of the component to be tested to the component testing hole 3; the power switch controls the power state of the to-be-tested component to meet the working state of the to-be-tested component.

Examples

The working state of the power switch is shown in fig. 5: turning off all the power switches and switching on a 220VAC (50Hz) alternating current power supply; after the part to be tested and the universal switching test equipment are connected, the three-phase 115VAC (400Hz) power supply and the direct current power supply are connected to the universal switching test equipment, and the power main switch 1 is closed;

1. when the direct current main switch (DC POWER) is closed, the direct current circuit indicator lamp 4 is lightened; adjustable direct current voltage can be measured on a direct current power supply forward power supply test hole 9(CW) or a direct current power supply reverse power supply test hole 10(CCW) and a direct current circuit negative electrode test hole 11(DC GROUND); when a direct current electric control switch (DC inching ON/OFF) is closed, an adjustable direct current power supply is controlled by a direct current inching change-over switch 7(DC inching) to be connected with a direct current power supply forward power supply test hole 9(CW) or a direct current power supply reverse power supply test hole 10 (CCW); the power supply direction of the adjustable direct current voltage on the direct current power supply forward power supply test hole 9(CW) and the direct current power supply reverse power supply test hole 10(CCW) is switched by a direct current power supply direction change-over switch 6(DC CW/CCW).

2. When the AC main switch 13(AC POWER) is closed, the AC circuit indicator light 12 will be on; the voltage of the three-phase 115VAC (400Hz) power supply can be measured on the AC power supply forward power supply test hole 18(A/CW) or the AC power supply reverse power supply test hole 19(A/CCW), the AC circuit B wire positive electrode test hole 20(B), the AC circuit C wire positive electrode test hole 21(C) and the AC circuit negative electrode test hole 22 (N); when the single-phase/three-phase change-over switch 15 is closed (single-phase ON/OFF), no 115VAC (400Hz) voltage is applied to the AC circuit B wire positive electrode test hole 20(B) and the AC circuit C wire positive electrode test hole 21 (C); when the AC inching control switch 17 is closed (AC inching ON/OFF), 115VAC (400Hz) voltage is controlled by an AC inching change-over switch 16(AC inching) to switch ON the AC power supply forward power supply test hole 18(A/CW) or the AC power supply reverse power supply test hole 19 (A/CCW); the power supply directions of the 115VAC (400Hz) voltage on the AC power supply forward power supply test hole 18(A/CW) and the AC power supply reverse power supply test hole 19(A/CCW) are switched by the AC power supply direction changeover switch 14(AC CW/CCW).

3. And detecting internal voltage signals of the tested component through the one-to-one correspondence of A/1 to c/26 test holes in the component test holes 3 on the front panel.

4. After the detection is finished, the direct current main switch 5(DC POWER) and the alternating current main switch 13(AC POWER) are disconnected, then the POWER main switch 1 is disconnected, and finally all cables connected with the test equipment are disconnected.

Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:

the utility model discloses a universal switching test device, which can convert the contact pin on the electric connector of the tested part to the control panel of the test device through a connecting cable, and the direct operation panel can be used during the test, thereby improving the convenience of the part test and the accuracy of the test result, and the test device can also select the cable which is in line with the type of the accessory plug, thereby testing accessories of different types and achieving the universal purpose; the utility model designs a unified control panel, which is simple to operate and has good human-computer interaction; the maintenance work efficiency is effectively improved, the maintenance period, the cost and the probability of human errors are reduced, and the safety and the reliability of the test process are improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.

Claims

1. A universal switching test device is characterized by comprising a case, a control panel and a connecting cable; the control panel is arranged on the case; the control panel is provided with a power switch, a cable connecting port, a component testing hole and a power access port;

the power supply access port is connected with a power supply; the power switch is connected with a power input end of the tested component and provides a working power supply for the tested component; the power switch comprises a power main switch, a switch of a direct current circuit and a switch of an alternating current circuit, the power main switch controls the on-off of the whole circuit, the switch of the direct current circuit controls a direct current power supply connected to the component to be tested, and the switch of the alternating current circuit controls an alternating current power supply connected to the component to be tested; the tested part is connected with the cable connecting port through the connecting cable, and the contact pins in the cable connecting port are correspondingly connected with the part testing holes one by one.

2. The universal transition test device of claim 1, further comprising a power supply test hole; the power supply testing hole is connected between the power supply switch and the tested component.

3. The universal transition test apparatus of claim 1, wherein the cable connectors convert pins of an electrical plug in the component under test to the component test wells.

4. The universal transition test device of claim 1, wherein the connection cable is configured with different models of the connection cable based on a type of electrical plug of the component under test.

5. The universal transition test apparatus of claim 1, wherein the cable connection port is a 26 pin military aircraft connector.