CN214201731U - Aircraft wiring harness conduction detection tool - Google Patents

Abstract

The utility model belongs to the design field of the electrical interconnected system of aircraft relates to an aircraft pencil switches on detection instrument. The tool is an improvement on the existing aircraft wire harness detection auxiliary equipment. The device is characterized in that a conduction detection lead-out wire group (200) and a tap contact (300) are contained in the containing shell (100); one end of each conduction detection lead-out wire in the conduction detection lead-out wire group (200) is connected with the tap contact piece (300) and is electrically conducted, and the other end of each conduction detection lead-out wire is connected with the line concentration part (400) and is electrically conducted; the pressing member (500) presses the wire collecting member (400) and the connection collective contact (600) and electrically connects the wire collecting member (400) and the collective contact (600). The utility model is suitable for a manual detection of multiple specification aircraft pencil, manufacturing process is simple, convenient to carry.

Description

Aircraft wiring harness conduction detection tool

Technical Field

The utility model relates to an electrical interconnected system of aircraft designs technical field, especially relates to an aircraft pencil switches on detection instrument.

Background

The harness continuity check is a process that must be performed to ensure the correctness of the connection of the aircraft electrical interconnect system harness. After the aircraft cable is laid on the aircraft, the universal meter with the conduction function can be used for conducting harness conduction detection.

Since the conduction test probe of the multimeter is fixed in size and cannot be bent, it is difficult for the probe of the multimeter to make good contact with and electrically connect to the jack/pin of a harness electrical connector having poor accessibility or a jack/pin size specification-specific, for example, an electrical connector installed in a narrow space area, or an electrical connector having a jack/pin size that is small. Under the condition, the conventional solution is to use a wire with a matched contact element at one end, insert the end with the contact element to the corresponding jack/pin of the electric connector to be tested to electrically conduct the two, and then use the probe of the multimeter to detect the other end of the lead-out wire. That is, a "lead-out wire" with compliant contacts is used to bridge the continuity test.

The limitation of this method is that in order to ensure good electrical continuity, the dimensions of the contacts carried by the "outgoing conductors" must be "matched one-to-one" to the dimensions of the sockets/pins of the electrical connector to be tested. For example, to "pull out" a pin contact of the AWG22 gauge of an electrical connector, a "pull out wire" with an AWG22 gauge hole contact must be used to ensure a good electrical connection between the "pull out wire" and the electrical connector contact. However, it is often the case that there are a plurality of different contact sizes on one or more electrical connectors to be tested that have poor accessibility. Therefore, according to the conventional one-to-one matching method, a plurality of lead-out wires with contacts of different specifications are required to be prepared; during detection, the lead-out wires with contacts of different specifications are frequently replaced, the detection efficiency is low, and the storage is not convenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: aiming at the problems in the prior art, the aircraft harness conduction detection tool is provided, and is used for improving the conventional measurement mode of one-to-one matching leading-out wires when the existing harness electric connector pin/jack conduction of the harness electric connector with poor measurement accessibility and special jack/pin size specification is adopted. The utility model discloses the aircraft pencil electric connector contact pin/jack of the multiple different specifications of adaptation simultaneously can improve the pencil by a wide margin and switch on the efficiency that detects, and manufacturing process is simple, accomodates and convenient to carry.

The technical scheme of the utility model:

in order to realize the above utility model purpose, provide an aircraft pencil switches on detection instrument, including following component parts:

a storage case 100, a conduction detection lead group 200, a tap contact 300, a line concentration member 400, a pressing member 500, and a connection collective contact 600;

the housing case 100 is mainly used for housing the conduction detection lead-out wire group 200 and the tap contact 300 connected with the conduction detection lead-out wire group;

the tap contact 300 is used for electrically conducting with an electric connector jack/pin of a wire harness to be tested;

the wire collecting member 400 has conductivity for connecting and electrically connecting the conduction detection lead-out wires of all the conduction detection lead-out wire groups 200 collectively and connecting the collective contacts 600;

the pressing component 500 can provide a pretightening force to press the end head of one side of the line concentration component 400 connected with the connection and collection contact element, so that the line concentration component is tightly attached to the connection and collection contact element;

the connection and collection contact 600 is used for being connected with the line concentration component and electrically conducting;

the conduction detection lead group 200 includes a plurality of conduction detection lead wires, and is accommodated in the accommodation case 100, wherein each conduction detection lead wire at one end is respectively connected to and electrically conducted with the tap contact 300 matching with the wire core specification thereof, and the end can extend out of the accommodation case 100; the conduction detection lead-out wire cores at the other end are gathered through the wire collecting part 400, are electrically connected with the input end of the wire collecting part 400, and are pressed at the output end of the wire collecting part 400 through the pressing part 500; the output end of the line concentration part 400 is connected to the connection-summing contact 600 to achieve electrical conduction between each conduction detection lead wire and the connection-summing contact 600.

In one possible embodiment, the storage case 100 has a semi-closed flat horn shape converging from one end to the other end, and the wire collecting member 400 is connected to the converging end thereof; the horn end at the other end is in a semi-closed shape and is provided with a conduction detection lead-out wire opening, so that a single conduction detection lead-out wire can be conveniently pulled out.

In a possible embodiment, the storage housing 100 is made of an insulating material, and can electrically isolate the contact elements of the lead-out wires for internal and external detection, so that detection errors caused by the fact that a plurality of lead wires are scattered and mistakenly touch surrounding metal parts are avoided, and detection accuracy is guaranteed.

In one possible embodiment, the input end of the hub member 400 has external threads and the output end at the other end has an expandable jaw structure.

In one possible embodiment, the compression member 500 has a tapered threaded inner bore therein for mating engagement with the external threads on the input end of the hub member 400, and tightening the compression member 500 can clamp the output end clamp structure of the hub member 400. After the connector is assembled on a line concentration component, the connector can provide pretightening force to press the end of one side of the line concentration component 400 connected with the connection and collection contact element 600, so that the line concentration component 400 is tightly attached to the connection and collection contact element 600 and is electrically conducted.

In one possible embodiment, the conduction testing outgoing lead set 200 wire core is electrically conducted with the wire concentration part 400 by welding or crimping.

In one possible embodiment, the wire-collecting member 400 is connected to and electrically connected to the connection collection contact 600 by crimping.

The utility model discloses the beneficial effect who brings has:

the detection method can be simultaneously adapted to the conduction detection of jacks/pins of electric connectors with different dimensions. In the traditional harness conduction detection, the size specification of a contact element carried by a lead-out wire is improved to a one-to-many matching form with the size specification of a jack/contact pin of an electric connector to be detected.

Two, use the utility model discloses, can be more quick change with accomodate and switch on measuring required "the wire of drawing forth", improve assembly efficiency.

Thirdly, the utility model discloses have the expansibility, can be applicable to the detection of switching on of conventional and/or customization electric and mechanical interface.

Fourthly, a traditional harness conduction detection mode is used, and a plurality of lead-out wires with contact elements of different specifications are required to be prepared; use the utility model discloses, only need prepare an instrument can, be more convenient for accomodate and carry.

Fifthly, the traditional lead-out wire is generally soft and is not suitable for the working condition that a hard lead-out wire is needed; the utility model discloses accomodate shell one end and can provide the soft wire of drawing forth, connect the wire of drawing forth that contact one end that gathers can provide the stereoplasm, can satisfy simultaneously needs two kinds of service behavior of soft or stereoplasm lead-out wire.

Drawings

Fig. 1 is an assembly schematic view of an embodiment of an aircraft harness continuity testing tool provided by the present invention;

fig. 2 is an enlarged view of an assembly and disassembly at position a of an embodiment of the aircraft harness conduction detection tool provided by the present invention, that is, a schematic view of an assembly of the wire collecting part 400 and the pressing part 500;

fig. 3 is a schematic comparison diagram of the expansion crack of the wire collecting part 400 before and after assembling the pressing part 500 in the aircraft harness conduction detection tool provided by the present invention.

Wherein:

100-storage case

200-conduction detection lead-out wire group

300-tap contact

400-line concentration part

500-pressing part

600-connection summary contact

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model discloses an aircraft pencil switches on detection instrument, an embodiment of it contains following subassembly:

the storage case 100 is made of an insulating heat-shrinkable sleeve, and is configured to store the conduction detection lead-out wire group 200 and the tap contact 300, and electrically isolate the contacts electrically isolating the internal and external detection lead-out wires. One end of the heat shrinkable tube is heat shrunk to be attached to the line concentration member 400, and the other end is heat shrunk and closed. The housing 100 has an opening at one end near the tap contact 300 to allow the conduction test lead wires and contacts to be withdrawn and replaced from the opening.

The conduction detection lead-out wire group 200 is made of a plurality of conventional aviation wires and cables, and the specifications of the conventional aviation wires and cables comprise AWG16, 18, 20, 22 and 24 wires which are commonly used by various airborne equipment of an airplane.

The tap contact 300 is a plurality of parts, adopts a conventional aircraft electrical interconnection system contact, has the size and specification matched with each wire in the conduction detection lead-out wire group 200, is pressed on each wire of the conduction detection lead-out wire group 200 and is electrically conducted with the wire. The contacts 300 include a pin type contact and a hole type contact.

The wire collecting member 400 is a metal member and is located at the bottom end of the housing case. The wire-collecting member 4 has a part exposed from the housing case 100. The line concentration member 400 is connected to all the conduction detection lead-out wire groups 200 at one end inside the housing case by pressure bonding and electrically conducted. The other end of the hub is threaded and split into a split as shown in fig. 2 and 3.

The pressing member 500, a threaded connecting member, provides a pre-tightening force when it is assembled to the wire collecting member 400, and presses the end of the wire collecting member 500 on the side where the connection and contact assembly 600 is connected, so that the expanded slits of the wire collecting member 500 are contracted to be tightly connected and electrically connected to the connection and contact assembly 600.

The connection aggregation contact 600, a conventional electrical contact of an aircraft electrical interconnect system, is inserted into the expanded split of the wire concentration member 400 during installation, and is interconnected and electrically connected to the wire concentration member 400 by virtue of the pre-load force provided by the compression member 500 during assembly.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims (7)

1. An aircraft harness conduction detection tool is characterized by comprising the following components:

the device comprises a storage shell (100), a conduction detection lead-out wire group (200), a tap contact (300), a wire concentration component (400), a pressing component (500) and a connection collection contact (600);

the accommodating shell (100) is mainly used for accommodating the conduction detection lead-out wire group (200) and the tap contact (300) connected with the conduction detection lead-out wire group;

the tapping contact (300) is used for being electrically conducted with an electric connector jack/pin of a wiring harness to be tested;

the wire collecting component (400) is conductive and is used for intensively connecting and electrically conducting the conduction detection lead-out wires in all the conduction detection lead-out wire groups (200) and the connection collecting contact piece (600);

the pressing component (500) can provide pretightening force to press the end head on one side of the connection line concentration component (400) connected with the connection summary contact element, so that the line concentration component is tightly attached to the connection summary contact element;

the connection and collection contact (600) is used for being connected with the line concentration component and electrically conducted;

the conduction detection lead group (200) comprises a plurality of conduction detection lead wires which are accommodated in the accommodating shell (100), wherein each conduction detection lead wire at one end is respectively connected with and electrically conducted with the tap contact (300) matched with the wire core specification of the conduction detection lead wire, and the end can extend out of the accommodating shell (100); the wire cores of the conduction detection lead-out wires at the other end are gathered through the wire collecting part (400), are electrically connected with the input end of the wire collecting part (400), and are pressed at the output end of the wire collecting part (400) through the pressing part (500); and connecting the output end of the line concentration component (400) with the connection and collection contact piece (600) to realize the electric conduction of each conduction detection lead-out wire and the connection and collection contact piece (600).

2. The aircraft harness conduction detection tool as claimed in claim 1, wherein the housing case (100) is in a semi-closed flat horn shape converging from one end to the other end, and the wire collecting member (400) is connected to the converging end thereof; the horn end at the other end is in a semi-closed shape and is provided with a conduction detection lead-out wire opening, so that a single conduction detection lead-out wire can be conveniently pulled out.

3. The aircraft harness conduction detection tool as claimed in claim 1, wherein the storage shell (100) is made of an insulating material, and can electrically isolate the contact elements of the lead-out wires for internal and external detection, so that detection errors caused by the fact that a plurality of wires scatter out and touch surrounding metal parts by mistake are avoided, and detection accuracy is guaranteed.

4. The aircraft harness continuity testing tool according to claim 1, wherein the input end of the wire collecting component (400) has external threads, and the output end of the other end of the wire collecting component has an expandable jaw structure.

5. The aircraft harness conduction detection tool as claimed in claim 1, wherein the compression part (500) is internally provided with a tapered threaded inner hole, the tapered threaded inner hole is in fit connection with an external thread at the input end of the line concentration part (400), the compression part (500) can be screwed to clamp the structure of the clamping jaw at the output end of the line concentration part (400), the clamping jaw can provide pre-tightening force after the line concentration part is assembled on the line concentration part, and the compression part (400) compresses the end of the side, connected with the connection summary contact piece (600), so that the line concentration part (400) is tightly attached to and electrically conducted with the connection summary contact piece (600).

6. The aircraft harness conduction test tool as claimed in claim 1, wherein the conduction test outgoing conductor set (200) core is electrically conducted with the wire collecting part (400) by welding or crimping.

7. The aircraft harness continuity check tool according to claim 1, wherein the wire collecting member (400) is connected to the connection collecting contact (600) by crimping and electrically conducted.

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