Test monitoring device of airborne power distribution device

Abstract

A test monitoring device of an airborne power distribution device belongs to the technical field of airborne power distribution and comprises an electric connector, a K1 binding post, a load binding post, a power distribution circuit indicating lamp, a control end 28V + binding post, a control end 28V-binding post, a contact end 28V + binding post, a contact end 28V-binding post, a working state indicating lamp, a control switch and a contact switch. The control end 28V + binding post is connected with the K1 binding post through the control switch, the control end 28V-binding post is connected with the electric connector, the contact end 28V + binding post is connected with the electric connector through the contact switch, and the contact end 28V-binding post is connected with the electric connector through the working state indicator lamp and the resistor. According to the utility model, real-time monitoring can be carried out in the test process of an airborne power distribution device product, and whether the product works normally or not is verified in the test.

Description

TECHNICAL FIELD

[0001] The utility model belongs to airborne power distribution technical field, especially relate to a test monitoring device of airborne power distribution device. BACKGROUND

[0002] The function of airborne power distribution device product is providing 28V DC for part of equipment on the airplane, and the airborne power distribution device is mainly composed of a shell, a contactor, a circuit breaker, a diode, an electrical connector and a terminal post. The 28V power signal from the airplane is loaded on two terminal posts K1 and K2 of the airborne power distribution device product, and K1 and K2 are connected to the normally open contact and the normally closed contact of the main contact of the contactor in the airborne power distribution device product, and the other ends of the normally open contact and the normally closed contact are connected to the circuit breaker in the airborne power distribution device product, and then connected to the corresponding interface of the electrical connector of the airborne power distribution device product through the overload protection of the circuit breaker. The airborne power distribution device product controls the attraction or disconnection of the contactor in the power distribution device through an external control signal, if the contactor is attracted, the airborne power distribution device product takes power from K1, if the contactor is not attracted, the airborne power distribution device product takes power from K2, so as to provide 28V DC power supply for part of electrical equipment on the airplane.

[0003] The airborne power distribution device product needs to be tested before leaving the factory or being used, and the connection mode of the cable is monitored in the test as shown in the drawing, and the existing test and detection equipment can only detect the function and performance of the product before and after the test of the airborne power distribution device product, and cannot perform real-time monitoring during the test of the product, and the normal working state of the product cannot be verified in the test. Figure 1 UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a test monitoring device of airborne power distribution device, which can realize real-time monitoring during the test of the airborne power distribution device product, and verify whether the product works normally in the test.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following main technical scheme:

[0006] ​The utility model provides a kind of test monitoring device of airborne power distribution device, including the electrical connector for connecting airborne power distribution device, K1 terminal, load terminal for connecting load, distribution circuit indicator, control end 28V+ terminal for connecting direct current power supply, control end 28V- terminal, contact end 28V+ terminal, contact end 28V- terminal, working condition indicator, control switch, contact switch, control end 28V+ terminal is connected with K1 terminal by control switch, control end 28V- terminal is connected with electrical connector, contact end 28V+ terminal is connected with electrical connector by contact switch, contact end 28V- terminal is connected with electrical connector by working condition indicator, resistance, a plurality of load terminals, distribution circuit indicator is respectively arranged, and its quantity matches the distribution circuit quantity of the airborne power distribution device to be measured, and one end of a plurality of load terminals is connected to electrical connector in parallel, and the other end is connected to contact end 28V- terminal, and each distribution circuit indicator is connected to both ends of each load terminal in parallel after resistance series connection.

[0007] Further, the electrical connector, K1 terminal, load terminal, distribution circuit indicator, control end 28V+ terminal, control end 28V- terminal, contact end 28V+ terminal, contact end 28V- terminal, working condition indicator, control switch, contact switch are arranged on the box of aluminum profile, and the wiring end, display end and operation end are integrated on the box panel.

[0008] Further, the electrical connector is JY27467T25B43PN.

[0009] Further, the control switch and the contact switch are knob switches, the maximum allowable current of the switch is 15A, the bit number is 2 bits, and the knife number is single knife.

[0010] Further, the K1 terminal, load terminal, control end 28V+ terminal, control end 28V- terminal, contact end 28V+ terminal, contact end 28V- terminal, M6*45mm pure copper wiring terminal is selected, and the load of 50A current is borne, and the terminal nut adopts high-voltage insulating nut.

[0011] The utility model discloses the test monitoring device of airborne power distribution device can realize the monitoring of each distribution circuit, and can monitor in the process of product carrying load test, and the plug-in wiring head wiring mode is simple in operation, improves efficiency and is stable in connection. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is monitoring connection schematic diagram for airborne power distribution device product test;

[0013] Figure 2 It is the panel schematic diagram of the utility model's test monitoring device of airborne power distribution device;

[0014] Figure 3 It is the test monitoring device circuit schematic view of airborne power distribution device of the utility model;

[0015] Figure 4 It is the line connection schematic view of the monitoring platform of the utility model for monitoring whether airborne power distribution device works normally;

[0016] Figure 5 It is the line connection schematic view of the monitoring platform of the utility model for monitoring airborne power distribution device load test.

[0017] In the figure: 1 is electric connector, 2 is K1 terminal post, 3 is contact switch, 4 is load terminal post, 5 is power distribution circuit indicator light, 6 is control end 28V+ terminal post, 7 is control end 28V- terminal post, 8 is contact end 28V+ terminal post, 9 is contact end 28V- terminal post, 10 is working state indicator light, 11 is control switch. DETAILED DESCRIPTION

[0018] In order to better explain the utility model, so as to facilitate understanding, the utility model is described in detail in combination with the specific embodiments and the accompanying drawings.

[0019] The utility model provides a kind of test monitoring device of airborne power distribution device, for real-time monitoring in environment, electromagnetic compatibility, power compatibility, functional performance etc.

[0020] The utility model provides a kind of test monitoring device of airborne power distribution device, for real-time monitoring in environment, electromagnetic compatibility, power compatibility, functional performance etc.

[0021] The control terminal 28V+ terminal 6 is connected with the K1 terminal 2 through the control switch 11, the control terminal 28V- terminal 7 is connected with the F point of the electric connector 1, the contact terminal 28V+ terminal 8 is connected with the E point of the electric connector 1 through the contact switch 3, and the contact terminal 28V- terminal 9 is connected with the R point of the electric connector 1 through the working state indicator lamp 10 and the 10kΩ resistor.

[0022] Specifically, the electric connector 1 can be selected as the electric connector with the model JY27467T25B43PN, the connector contact pair model is 20 16# and 23 20#. The load terminals 4 and the power distribution circuit indicator lamps 5 are arranged in several groups, and the number thereof is matched with the number of the power distribution circuits of the to-be-tested airborne power distribution device. One end of the several load terminals 4 is connected in parallel to the electric connector 1, and the other end is connected to the contact terminal 28V- terminal 9. Each power distribution circuit indicator lamp 5 is connected in parallel to both ends of each load terminal 4 after being connected in series with the 10kΩ resistor. In the embodiment, the load terminals 4 and the power distribution circuit indicator lamps 5 are arranged in 19 groups, and the wiring mode of each point of the 19 point positions of the electric connector 1 is the same as that of the power distribution circuit indicator lamps 5, the resistor and the load terminals 4. For example, the A point of the electric connector 1 is connected with the terminal X1:A, the 10kΩ resistor is connected with the indicator lamp X1:A and is connected in parallel with the terminal X1:A, and after being connected in parallel, the terminal X1:A is connected with the terminal contact 28V-. The B point of the electric connector JX1 is connected with the terminal X1:B, the 10kΩ resistor is connected with the indicator lamp X1:B and is connected in parallel with the terminal X1:B, and after being connected in parallel, the terminal X1:B is connected with the terminal contact 28V-. The L point of the electric connector JX1 is connected with the terminal X2:A, the 10kΩ resistor is connected with the indicator lamp X2:A and is connected in parallel with the terminal X2:A, and after being connected in parallel, the terminal X2:A is connected with the terminal contact 28V-. And so on, the wiring relationship of the 19 paths is shown in detail in the following table. Figure 3 .

[0023] Specifically, the electric connector 1, the K1 terminal 2, the load terminal 4, the power distribution circuit indicator lamp 5, the control terminal 28V+ terminal 6, the control terminal 28V- terminal 7, the contact terminal 28V+ terminal 8, the contact terminal 28V- terminal 9, the working state indicator lamp 10, the control switch 11 and the contact switch 3 are arranged on an aluminum profile box, the box outer dimension is 320mm*240mm*150mm, the shell color is sprayed TB06-9 zinc yellow primer, and the shell color is sprayed TS70-60 black polyurethane semi-gloss enamel, and the wiring end, the display end and the operation end are integrated on the box panel, as shown in Figure 2 .

[0024] Specifically, the control switch 11 and the contact switch 3 are button switches, the maximum allowable current of the switches is 15A, the number of bits is 2 bits, and the number of blades is single blade. The K1 terminal 2, the load terminal 4, the control terminal 28V+ terminal 6, the control terminal 28V- terminal 7, the contact terminal 28V+ terminal 8, and the contact terminal 28V- terminal 9 are selected from M6*45mm pure copper terminals, which can bear 50A current, and the terminal nut is made of high-voltage insulating nut. The power distribution circuit indicator 5 and the working state indicator 10 are selected from high-brightness light-emitting tubes for state indication. The indicator is selected from a shelf product, which is convenient to replace.

[0025] According to the environmental conditions and working current of the wire and the crimping relationship with the contact pair of the connector, in order to improve the reliability of the cable, the wire is selected from the wire cable with the same specification as the product. The wire executes GJB773 / 8A-2000, is suitable for aviation, aerospace, ship, weapon equipment and instrument line connection, is a special military product, the use environment temperature is-65℃-200℃, the rated voltage is below 600V. It has the characteristics of high and low temperature resistance, oil resistance, water resistance, corrosion resistance, flame resistance, light and strong, excellent insulation performance, etc. It is used in places with high temperature and harsh conditions. The cross-sectional area and other parameters of the wire are shown in Table 1.

[0026] Table 1 Cross-sectional area and parameters of the wire

[0027]

[0028] The length of the wire is made according to the demand, the outer protection is made of a canvas sheath, and the wire and the connector are crimped to ensure the reliability of the connection.

[0029] Monitoring whether the airborne power distribution device works normally:

[0030] The connection mode is as shown in Figure 4 The electrical connectors (X1, X2, X3, X4) and the terminals on the airborne power distribution device are connected with the electrical connector 1 and the K1 terminal 2 of the utility model monitoring device through the monitoring cable, the control 28V+ 6 of the utility model monitoring device is connected with the + of the 28V DC power supply, the control 28V- 7 is connected with the - of the 28V DC power supply, the contact 28V+ 8 of the utility model monitoring device is connected with the + of another 28V DC power supply, and the contact 28V- 9 is connected with the - of the 28V DC power supply. The control switch 11 and the contact switch 3 of the utility model monitoring device are connected, if the working state indicator 10 and the power distribution circuit indicator 5 are bright, the airborne power distribution device works normally, and if they are not bright or flash, the airborne power distribution device works abnormally.

[0031] Monitoring the load test of the airborne power distribution device:

[0032] The connection mode is as shown in Figure 5As shown, the electric connectors (X1, X2, X3, X4) on the airborne power distribution device are connected with the electric connector 1 of the utility model monitoring device through the monitoring cable, the load terminal 4 on the utility model monitoring device is connected with the load through the load cable, the 28V DC power supply- is connected with the load, and the 28V DC power supply+ is connected with the terminal of the airborne power distribution device. After the 28V DC power supply is powered, the utility model monitoring device can conduct the load test monitoring of the product. If the indicator light 5 of the utility model monitoring device is bright, the load test is qualified. If the indicator light 5 is not bright or flashes, the load test is unqualified.

[0033] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model. The modification, replacement and variation of the above-mentioned embodiments by the ordinary skilled in the art all belong to the range of the utility model.

Claims

1. A test and monitoring device for an airborne power distribution system, characterized in that, Includes an electrical connector (1) for connecting the airborne power distribution unit, a K1 terminal (2), a load terminal (4) for connecting the load, a power distribution circuit indicator (5), a control terminal 28V+ terminal (6), a control terminal 28V- terminal (7), a contact terminal 28V+ terminal (8), a contact terminal 28V- terminal (9), a working status indicator (10), a control switch (11), and a contact switch (3). The control terminal 28V+ terminal (6) is connected to the K1 terminal (2) via the control switch (11), and the control terminal 28V- terminal (7) is connected to the electrical connector. (1) Connected, the 28V+ terminal (8) of the contact end is connected to the electrical connector (1) via the contact switch (3), and the 28V- terminal (9) of the contact end is connected to the electrical connector (1) via the working status indicator (10) and the resistor. Several groups of load terminals (4) and power distribution circuit indicator (5) are set respectively, and their number matches the number of power distribution circuits of the airborne power distribution device under test. One end of several load terminals (4) is connected in parallel to the electrical connector (1), and the other end is connected to the 28V- terminal (9) of the contact end. Each power distribution circuit indicator (5) is connected in series with a resistor and then connected in parallel to both ends of each load terminal (4).

2. The test and monitoring device for an airborne power distribution system according to claim 1, characterized in that: The electrical connector (1), K1 terminal (2), load terminal (4), power distribution circuit indicator (5), control terminal 28V+ terminal (6), control terminal 28V- terminal (7), contact terminal 28V+ terminal (8), contact terminal 28V- terminal (9), working status indicator (10), control switch (11), and contact switch (3) are mounted on an aluminum profile enclosure, with their terminals, display terminals, and operation terminals integrated on the enclosure panel.

3. The test and monitoring device for an airborne power distribution system according to claim 1, characterized in that: The electrical connector (1) is model JY27467T25B43PN.

4. The test and monitoring device for an airborne power distribution system according to claim 1, characterized in that: The control switch (11) and contact switch (3) are toggle switches. The maximum allowable current through the switch is 15A, the number of digits is 2, and the number of blades is single blade.

5. The test and monitoring device for an airborne power distribution system according to claim 1, characterized in that: The K1 terminal (2), load terminal (4), control terminal 28V+ terminal (6), control terminal 28V- terminal (7), contact terminal 28V+ terminal (8), and contact terminal 28V- terminal (9) are all made of M6×45mm pure copper terminals, which can carry 50A current. The terminal nuts are high-voltage insulated nuts.

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