阅读说明：本技术 三连接座在线测试电缆 (Three-connecting-seat online test cable ) 是由 史鹏飞 袁迪 卢玉峰 于 2020-12-17 设计创作，主要内容包括：提供一种三连接座在线测试电缆,属于调试电缆技术领域,包括电连接器T、电连接器A和电连接器B三个电连接器,三个电连接器上的连接接头数量相等且按顺序通过对应数量的安装线对应连接,多个安装线分成三组且分别为电源组线、信号组线和选位组线,三组组线外部分别套有耐寒管,三组安装线通过棉线捆扎在一起,选位组线中的每个安装线的对应端通过接触件接触偶与电连接器T的对应接头连接。本发明实现惯性器件在安装到产品前进行批量预调,及时剔除有缺陷的惯性器件,避免多次安装可能造成的配套零件损耗,既提高了生产效率,又避免后期惯性器件故障产生的返工成本,有效降低故障误报率,提高调试人员的工作效率,提升产品生产能力。(The utility model provides a three connecting seat on-line test cable, belong to debugging cable technical field, including electric connector T, the three electric connector of electric connector A and electric connector B, the attach fitting quantity on the three electric connector equals and corresponds the connection through the installation wire that corresponds quantity in order, a plurality of installation wires divide into three groups and be the power group line respectively, signal group line and selection position group line, the outside cold-resistant pipe of overlapping respectively of three group line, three group's installation wire are in the same place through cotton thread bundle, the corresponding end of every installation wire in the selection position group line passes through contact part contact even and electric connector T's the corresponding articulate. The invention realizes batch pre-adjustment of the inertia devices before the inertia devices are installed on a product, eliminates the defective inertia devices in time, avoids the loss of matching parts possibly caused by multiple installation, not only improves the production efficiency, but also avoids the rework cost caused by the failure of the inertia devices in the later period, effectively reduces the false alarm rate of the failure, improves the working efficiency of debugging personnel and improves the production capacity of the product.)

1. Three connecting seats on-line test cable, its characterized in that: including electric connector T (1), electric connector A (2) and the three electric connector of electric connector B (3), the attach fitting quantity on electric connector T (1), electric connector A (2) and the three electric connector of electric connector B (3) is equal and correspond the connection through the installation wire (4) that corresponds the quantity in order, and is a plurality of installation wire (4) divide into three groups and be power group line (6), signal group line (7) and select position group line (8) respectively, power group line (6), signal group line (7) and select position group line (8) outside cover respectively have cold-resistant pipe (9), three groups installation wire (4) are in the same place through cotton thread (10) bundle, the corresponding joint connection of contact even (11) and electric connector T (1) is passed through to the end that corresponds of every installation wire (4) in the selection position group line (8).

2. The three-connector socket online test cable of claim 1, wherein: the electric connector T (1), the electric connector A (2) and the electric connector B (3) are respectively provided with 15 connecting joints and are correspondingly connected through 15 mounting lines (4), each mounting line (4) comprises a self-carrying mounting line and an extension mounting line which are arranged on the connecting joints, the self-carrying mounting lines of the electric connector T (1) and the electric connector A (2) are connected through the extension mounting lines, the joints are sleeved with LRS-I-2.0/1.0 heat-shrinkable tubes (5), the self-carrying mounting lines of the electric connector B (3) are connected with the middle parts of the extension mounting lines, and the joints are sleeved with the LRS-I-1.0/0.5 heat-shrinkable tubes (5); wherein 7 of the 15 installation lines (4) form a power supply group line (6), 6 form a signal group line (7), and 2 form a bit selection group line (8).

3. The three-connector socket online test cable of claim 2, wherein: the electric connector T (1), the electric connector A (2) and the electric connector B (3)) The self-contained mounting line on the device adopts a specification of 0.07mm with the length of 200mm²The mounting wire of (1); the extension installation line adopts an AFR-200s0.2 installation line with the length of 1000 mm.

4. The three-connection socket online test cable according to claim 2 or 3, wherein: the contact piece contact couple (11) between the position selection group line (8) and the electric connector T (1) comprises a hole contact piece and a needle contact piece, the needle contact piece is fixedly connected with a corresponding connection joint on the electric connector T (1), the hole contact piece is connected with the end of the corresponding mounting line (4), and a heat shrink tube (5) of LRS-I-2.0/1.0 is sleeved at the connection position.

5. The three-connector socket online test cable of claim 4, wherein: the electrical connector T (1) adopts a J30-15TJN-J electrical connector, and the electrical connector A (2) and the electrical connector B (3) adopt a J30-15ZKN-J electrical connector.

6. The three-connector socket online test cable of claim 5, wherein: the cold-resistant pipe (9) is made of polyvinyl chloride cold-resistant pipe.

Technical Field

The invention belongs to the technical field of debugging cables, and particularly relates to a three-connecting-seat online testing cable which is particularly suitable for being used in the debugging of an inertia device system in inertia combined navigation equipment.

Background

The inertial integrated navigation equipment is one of important instruments on the airplane and is used for collecting, resolving and displaying flight data related to the course, the attitude and the like of the airplane. The equipment mainly carries out navigation calculation by a strapdown integrated navigation component, and the working reliability of the equipment is determined by the compactness of the installation of a circuit board component in the strapdown integrated navigation component. A certain inertia device in the strapdown integrated navigation assembly needs to be installed after being preset, in the current practical operation, direct installation is carried out manually in a conventional mode, and the inertia device needs to be replaced after the inertia device is found to be in fault in system debugging after installation, so that rework is caused, and the delivery cycle of a product is influenced. The existing conventional debugging method has the following defects: (1) the loss of matched parts can be caused during multiple installation, and the production cost is increased; (2) before the inertia device is installed, a system joint test is not carried out, and when a fault related to the inertia device occurs after the inertia device is installed, a fault source is difficult to judge, so that a repetitive fault of the inertia device caused by other system parts can be caused; (3) after the inertia device is installed on a product, debugging can only be carried out on single-meter debugging, batch pre-debugging cannot be carried out, and the production efficiency is low; (4) after the inertial device is installed on a product, the working state of the inertial device can be checked through a product self-test program, but the information quantity is small. There is therefore a need for improvements.

Disclosure of Invention

The technical problems solved by the invention are as follows: the invention provides a three-connecting-seat online test cable, which can realize batch pre-adjustment of inertia devices before being installed on a product, timely eliminates defective inertia devices, avoids accessory loss possibly caused by multiple installation, improves the production efficiency, avoids rework cost caused by later-stage inertia device failure, overcomes the defect of offline test of the original inertia devices, effectively reduces the false failure rate, improves the working efficiency of debugging personnel, and improves the production capacity of the product.

The technical scheme adopted by the invention is as follows: three connecting seat on-line test cables, including electric connector T, the three electric connector of electric connector A and electric connector B, the attach fitting quantity on the three electric connector of electric connector T, electric connector A and electric connector B equals and corresponds the connection through the installation wire that corresponds quantity in order, and is a plurality of the installation wire divide into three groups and be power group line, signal group line and select position group line respectively, power group line, signal group line and the outside cover of selecting position group line have cold-resistant pipe respectively, three groups the installation wire is in the same place through cotton thread bundle, the corresponding end of every installation wire in the selection position group line passes through the even corresponding articulate with electric connector T of contact.

The technical scheme is further limited, the electric connector T, the electric connector A and the electric connector B are respectively provided with 15 connecting joints and are correspondingly connected through 15 mounting lines, each mounting line comprises a self-contained mounting line and an extended mounting line which are arranged on the connecting joints, the self-contained mounting lines of the electric connector T and the electric connector A are connected through the extended mounting lines, the joints are sleeved with LRS-I-2.0/1.0 heat-shrinkable tubes, the self-contained mounting lines of the electric connector B are connected with the middle parts of the extended mounting lines, and the joints are sleeved with LRS-I-1.0/0.5 heat-shrinkable tubes; and 7 of the 15 installation lines form a power supply group line, 6 form a signal group line, and 2 form a bit selection group line.

In order to further limit the technical scheme, the self-contained mounting lines on the electric connector T, the electric connector A and the electric connector B are 200mm long and 0.07mm in specification²The mounting wire of (1); the extension installation line adopts an AFR-200s0.2 installation line with the length of 1000 mm.

In order to further limit the technical scheme, the contact element contact couple between the selected position group line and the electric connector T comprises a hole contact element and a needle contact element, the needle contact element is fixedly connected with a corresponding connection joint on the electric connector T, the hole contact element is connected with a corresponding mounting line end, and a connection part is sleeved with an LRS-I-2.0/1.0 heat shrink tube.

In a further definition of the above technical solution, the electrical connector T is a J30-15TJN-J electrical connector, and the electrical connector a and the electrical connector B are J30-15ZKN-J electrical connectors.

In the further limitation of the technical scheme, the cold-resistant pipe is made of polyvinyl chloride cold-resistant pipe.

Compared with the prior art, the invention has the advantages that:

1. the scheme realizes batch pre-adjustment before the inertia devices are installed on a product, eliminates the defective inertia devices in time, avoids the loss of matched parts possibly caused by multiple installation, improves the production efficiency, avoids the rework cost caused by the failure of the inertia devices in the later period, solves the defect of the prior offline test of the inertia devices, effectively reduces the false alarm rate of the failure, improves the working efficiency of debugging personnel and improves the production capacity of the product;

2. when the inertial device is connected to the system through the on-line test cable, the special tester for the inertial device can be connected to the connector of the inertial device test equipment as required to carry out comprehensive test, professional performance inspection is carried out on the inertial device, and the inertial device with defects is prevented from being packaged into a product to the greatest extent.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure of part I in FIG. 1 according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements" does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Referring to fig. 1-2, embodiments of the present invention are described in detail.

The three-connector socket on-line test cable, as shown in fig. 1, includes three electrical connectors, i.e., an electrical connector T1, an electrical connector a2 and an electrical connector B3, which are main parts of the on-line test cable, and adopt connectors of the same grade as the product. Wherein the electrical connector T1 is used for connecting with a product and employs a J30-15TJN-J electrical connector, and the electrical connector A2 and the electrical connector B3 are used for connecting an inertial device or an inertial device testing equipment respectively and employ a J30-15ZKN-J electrical connector. In addition to the above specifications, the electrical connector B3 may be of any suitable size to be used with the corresponding inertial device testing equipment without adversely affecting the performance of the product itself.

The number of the connecting joints on the three electric connectors of the electric connector T1, the electric connector A2 and the electric connector B3 is equal, the three electric connectors are correspondingly connected through the corresponding number of the mounting wires 4 in sequence, and the mounting wires 4 are functionally divided into three groups which are respectively a power supply group wire 6, a signal group wire 7 and a position selecting group wire 8. In this embodiment, be equipped with 15 attach connectors on electric connector T1, electric connector A2 and the electric connector B3 respectively and correspond and connect through 15 installation wires 4, every installation wire 4 is including locating from taking installation wire and extension installation wire on the attach connector, adopt length 200mm specification 0.07mm from taking the installation wire on electric connector T1, electric connector A2 and the electric connector B3²The extended installation line adopts an installation line with the length of 1000mm and the AFR-200s 0.2. The self-contained mounting line of the electric connector T1 and the self-contained mounting line of the electric connector A2 are connected through an extension mounting line, and the joint is sheathed with the heat shrinkable tube 5 of LRS-I-2.0/1.0 for protection, the self-contained mounting line of the electric connector B3 is connected with the middle part of the extension mounting line, and the joint is sheathed with the heat shrinkable tube 5 of LRS-I-1.0/0.5 for protection. Wherein, 7 of the 15 installation lines 4 constitute a power supply group line 6, 6 constitute a signal group line 7, and 2 constitute a bit selection group line 8. The power supply group line 6, the signal group line 7 and the position selecting group line 8 are respectively sleeved with a cold-resistant pipe 9, and the cold-resistant pipe 9 adopts a cold-resistant polyvinyl chloride pipe with d3 specification. Three sets of the mounting wires 4 are tied together in sections with # 10 cotton thread 10,

near the electrical connector T1, the corresponding end of each mounting line 4 in the position selection group line 8 is connected with the corresponding joint of the electrical connector T1 through a contact pair 11, and the fault position of the inertia device can be assisted by controlling the on-off of the contact pair. The contact couple 11 between the position selecting group line 8 and the electric connector T1 comprises a 22# D hole contact and a 22# D pin contact, the pin contact is fixedly connected with a corresponding connection joint on the electric connector T1, the hole contact is connected with the end of a corresponding mounting line 4, and a heat shrinkable tube 5 of LRS-I-2.0/1.0 is sleeved at the connection position. During specific combination, the self-contained mounting wires corresponding to the two connectors are disconnected at the staggered position of the electric connector T1 close to the connector end, the 22# D pin contact piece is welded on the corresponding connector upper wire of the electric connector T1 in a head peeling mode, the 22# D hole contact piece is welded on the corresponding self-contained mounting wire in a head peeling mode, and the heat shrinkage pipes with the lengths corresponding to the two sections of mounting wire end caps are arranged.

When all wires in the detection cable are stripped, the thermal stripper is used, and the operation is strictly carried out according to the operation requirement of the thermal stripper. And when the AFR lead is stripped, the insulation skin is stripped by 3-5 mm, and the lead is connected with the wiring terminal in a welding mode. When the welding mode is adopted, the tin-lead solder S-Sn60PbA and the active welding flux S5-58-91 are used for welding; the welding process parameters are as follows: the welding temperature is 270-350 ℃, and the welding time is 3-5 s. Before welding, tin coating treatment is carried out on the wire core of the lead and the wire bonding cup of the connector, a heat-shrinkable tube is sleeved on the root part of the lead, and the specification of the heat-shrinkable tube is selected according to the size of each contact wire bonding cup. When welding, a proper amount of welding flux is used, the welding spot is required to be round and smooth after welding, the welding flux does not flow out, and the welding spot is cleaned by absolute ethyl alcohol after welding. Standing for 1min, and performing thermal shrinkage on the thermal shrinkage pipe by using a hot air gun after the ethanol is completely volatilized, wherein the welding spots cannot be exposed after the thermal shrinkage is completed. And after the cable is assembled, checking the wiring correctness by using a digital multimeter according to the wiring relation in a drawing, wherein the resistance is not more than 1 omega when the cable is switched on. And (4) using a 500V megohmmeter to perform insulation inspection between all the pins (holes) and the shell, wherein the resistance value of the megohmmeter is more than 200M omega.

When the cable connector is used, the electric connector joint of the on-line test cable is plugged into the cross-linked socket according to the use environment, and the selected position groups of the installation wires are preset according to requirements, so that debugging work can be carried out.

In this embodiment, the process of debugging the inertial device using the online test cable includes:

1) and correspondingly plugging the two pairs of 22# D pin contacts and 22# D hole contacts of the online test cable electric connector T1 together one by one, and confirming that the joints at the staggered positions are completely separated by the heat shrink tube, so that the inertial device to be tested is prepared for system debugging.

2) Keeping a batch of inertial devices to be debugged in a closed environment according to test conditions, oppositely inserting and fastening an electric connector A2 of an online test cable and a plug corresponding to a product, randomly selecting one inertial device, oppositely inserting an electric connector T1 of the online test cable and a socket of the selected inertial device, temporarily disconnecting an electric connector B3 of the online test cable, and connecting the selected inertial device and the product through the online test cable.

3) Electrifying the product, and observing the working state of the inertia device through the inertia device test interface of the product; when the state information of the inertia device to be detected is confirmed to be correct, randomly rotating the inertia device to be detected, and observing the following condition of the angular rate of the inertia device to be detected; and then stabilizing the sensitive axial direction of the inertia device to be tested in three directions of the northeast, and observing that the output value of the inertia device to be tested is consistent with the local standard values (0, 32 and 24) on a test interface of the inertia device.

4) When the inertial device test interface displays that the parameters of the inertial device are qualified, judging that the inertial device is qualified in debugging, powering off the product, and finishing the test of the inertial device; when the test interface of the inertia device shows that a certain parameter of the inertia device is out of tolerance and can not be determined as the self fault of the inertia device, after the product is powered off, two pairs of 22# D contact couples of the on-line test cable electric connector T1 are disconnected, the electric connector B3 of the on-line test cable is connected to the inertia device test equipment, then the product and the inertia device test equipment are powered on simultaneously, the test result of the inertia device to be tested by the inertia device test equipment is observed, if the test result is consistent with the product judgment, the fault of the inertia device to be tested is confirmed, otherwise, the transmission error of a product control command is judged, the control panel in the product is replaced after the power off, the verification test is carried out again, if the inertia device to be tested is qualified, the work abnormality of the control panel of the product is confirmed, then the problem of the position selection error is searched, two pairs, and if the power-on inspection is normal, judging that the inertia device to be tested is qualified and locking the corresponding position selection signal error of the product. The command transmission error and the position selection signal error of a product can be simply judged through the switch operation of the corresponding contact couple of the online test cable, and the cost of disassembling the inertia device and using special test equipment for comprehensive test is saved.

5) And after the test of one inertia device is finished, another inertia device is connected to carry out the test process again.

6) And after the test of a group of inertia devices is finished, the online test cable is detached from the product, and all contact couples of the online test cable are recovered to the initial connection state.

After the steps are completed, cleaning and maintenance of the on-line test cable can be carried out.

The invention realizes the batch pre-adjustment of the inertia devices before the inertia devices are installed on a product, eliminates the defective inertia devices in time, avoids the loss of matching parts possibly caused by multiple installation, improves the production efficiency, avoids the rework cost caused by the failure of the inertia devices in the later period, solves the defect of the prior offline test of the inertia devices, effectively reduces the false failure rate, improves the working efficiency of debugging personnel and improves the production capacity of the product.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.