Automatic hunting electrical property switching device

Abstract

The invention belongs to the technical field of cable testing, and particularly relates to an electrical property switching device with an automatic line tracking function. The invention provides an automatic hunting electrical property switching device which comprises a switching tool A and a switching tool B. The switching tool A comprises a junction box, a far-end cable, a switching box, a portable RFID all-in-one machine and a near-end cable. On one hand, by reasonably planning and designing the tail end connecting structure, the connecting efficiency is rapidly improved, the bending frequency of the connecting position is reduced, and then the damage probability is reduced; and on the other hand, by introducing an automatic line hunting function, a tester can be assisted to quickly complete access of the cable to be tested and fault point searching work, so that the efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cable testing, and in particular relates to an electrical performance switching device that automatically finds a line. Background Art

[0002] Cables are indispensable components in many industries such as aerospace, rail transportation, and electric power. They mainly provide power and transmit control signals, and are generally connected between two power components. To ensure the correctness of power supply and signal transmission, the cable's conductivity and insulation performance must be tested before use. Only cables that meet process requirements can ensure the normal operation of the system. In some practical applications, it is necessary to pre-bury some cables in the equipment, such as the attached Figure 1 As shown in the figure, after the cable is laid, both sides are scattered wires, and because the middle part is laid inside the equipment, the one-to-one relationship between the cables on both sides cannot be identified. Therefore, when doing the on-resistance and insulation resistance tests, it is necessary to scan and confirm the connection relationship before starting the scan. In addition, because both ends of the cable are scattered wires and cannot be directly connected to the test instrument, it is necessary to make a switching tool to effectively connect the cable to be tested with the test instrument. During the test process, if there is a false connection or a fault, the tester needs to find the fault point among many cables and troubleshoot the fault one by one, which is time-consuming and labor-intensive.

[0003] When testing unlabeled cables with the insulation stripped at both ends, you first need to connect both ends of the cable to be tested to the test instrument. Generally, the test interfaces open to the outside of the test instrument are standard interfaces, such as Omron interfaces, multi-core cold-pressed connectors, etc. However, due to the loose wires, it is impossible to directly and quickly connect the cable to be tested to the test instrument and it is impossible to quickly locate the fault point when a fault occurs. Therefore, in order to quickly improve the test efficiency, a set of tooling is needed that can quickly complete the connection of the cable to be tested and assist in fault location.

[0004] At present, the beeping position of the multimeter is mainly used to randomly scan the two ends of the cable to be tested and find the line sequence relationship. After finding the line sequence relationship, the multimeter and the megohmmeter are used to test the conduction resistance and insulation resistance. Other relatively high-automation methods mainly use automatic test instruments. After the cable to be tested is connected to the test instrument through the connection terminal, the instrument can automatically complete the line sequence scan and electrical performance test, but it still does not solve the problem of confusing wiring and the inability to locate the fault point.

[0005] In summary, the shortcomings of the prior art are mainly reflected in two points: on the one hand, when the cables to be tested are connected to the test instrument, they are entangled with each other in a very chaotic manner, and the connection between the end terminal and the wire is prone to breakage due to long-term bending; on the other hand, when a fault occurs, since the cables are entangled with each other, it is necessary to check the cables one by one when finding the faulty cable, which is time-consuming and laborious. Summary of the invention

[0006] The present invention provides an electrical performance switching device with automatic line finding. On the one hand, by reasonably planning and designing the terminal connection structure, the connection efficiency is quickly improved and the bending frequency of the connection is reduced, thereby reducing the probability of damage; on the other hand, by introducing the automatic line finding function, it can assist testers to quickly complete the access of the cable to be tested and the fault point search work, thereby improving efficiency.

[0007] In order to achieve the above object, the present invention solves the above technical problems through the following technical solutions:

[0008] An electrical performance switching device for automatic line finding includes a switching tool A and a switching tool B, wherein the switching tool A includes:

[0009] A junction box 1, one side of which is connected to the cable to be tested, and the other side is connected to the remote cable 2;

[0010] A remote cable 2, used to connect the junction box 1 and the adapter box 3;

[0011] The adapter box 3 is used for connecting the far-end cable 2 and the near-end cable 5;

[0012] A portable RFID integrated machine 4 is used to identify the RFID luminous tag according to the fault sequence number to find the fault line;

[0013] A near-end cable 5, one side of which is connected to the adapter box 3, and the other side is connected to the test instrument;

[0014] The transfer tool B has the same structural configuration as the transfer tool A;

[0015] The two ends of the cable to be tested are respectively connected to the adapter A and the adapter B, and finally connected to the test instrument to form a closed-loop circuit.

[0016] The junction box 1 comprises a first bottom plate 11, a second bottom plate 12, a first upper cover 13, a second upper cover 14, and a plurality of connection terminals 15. The first bottom plate 11 and the second bottom plate 12 have the same structure, and the first upper cover 13 and the second upper cover 14 have the same structure.

[0017] The junction box 1 is composed of two layers, the first bottom plate 11 and the first upper cover 13 form an upper structure, and the second bottom plate 12 and the second upper cover 14 form a lower structure. Each layer can be connected with at least 5 core wires.

[0018] The first bottom plate 11 is provided with a plurality of first connection terminal fixing grooves 110 for placing and limiting the connection terminals 15;

[0019] The second bottom plate 12 is provided with a plurality of second connection terminal fixing grooves 120 for placing and limiting the connection terminals 15;

[0020] A plurality of third connection terminal fixing grooves 130 are provided on one side of the upper end surface of the first upper cover 13, and a first wire pressing groove 131 is provided on the opposite side;

[0021] A plurality of fourth connection terminal fixing grooves 140 are disposed on one side of the upper end surface of the second upper cover 14 , and a second wire pressing groove 141 is disposed on the opposite side.

[0022] Each connection terminal 15 is provided with a light emitting label 150 and an indicator light 151 .

[0023] The remote cable 2 has a total core number of N, which is divided into M bundles at the end, each bundle containing 10 cores, and M is the remainder of N over 10, and 1 is added if it is not an integer.

[0024] The adapter box 3 includes a box body 31 and a male aviation plug panel 32 symmetrically arranged on both side end surfaces of the box body 31 , and the male aviation plug panel is provided with a plurality of male aviation plugs 320 .

[0025] The adapter box 3 is connected to the remote cable 2 and the near-end cable 5 through the female aviation plug and the male aviation plug 320 .

[0026] The portable RFID integrated device 4 is suspended in the adapter box 3 and is used for troubleshooting faulty cables.

[0027] One end of the proximal cable 5 is connected to the adapter box 3 , and the other end is welded to the standard connector of the test instrument.

[0028] Based on the implementation of the above technical solution, the present invention can achieve the following technical effects:

[0029] 1. The present invention provides an electrical performance switching device with automatic line finding. On the one hand, by rationally planning and designing the terminal connection structure, the connection efficiency is quickly improved and the bending frequency at the connection is reduced, thereby reducing the probability of damage. On the other hand, by introducing the automatic line finding function, it can assist testers in quickly completing the access of the cable to be tested and the fault point search work, thereby improving efficiency.

[0030] 2. The present invention provides an automatic line-finding electrical performance switching device, which shortens the fault point locating time by introducing RFID automatic tag searching.

[0031] 3. The present invention provides an electrical performance transfer device for automatic line finding. The test host uses Bluetooth communication to send fault point information to the RFID integrated machine. The RFID integrated machine is close to the terminal junction box and uses the active trigger mode to make the corresponding ID luminous tag emit light. This method can quickly locate the cable fault point.

[0032] 4. The present invention provides an electrical performance adapter with automatic line finding. The far end of the adapter is a jack design, and the loose wires at the near end of the other side can be quickly welded to the standard connector of the test instrument. The adapter can be quickly adapted to various types of test instruments and on-site testing needs. The adapter box panel has an air plug-in design that improves the maintainability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a schematic diagram of laying cables;

[0035] Figure 2 It is a connection diagram of the test system provided by the present invention;

[0036] Figure 3 It is a schematic diagram of the composition of the transfer tooling provided by the present invention;

[0037] Figure 4 It is a schematic diagram of the structure of the junction box provided by the present invention;

[0038] Figure 5 It is a structural schematic diagram of the upper cover provided by the present invention;

[0039] Figure 6 It is a schematic diagram of the distribution of the connection terminals of the junction box provided by the present invention;

[0040] Figure 7 It is a structural schematic diagram of the bottom plate provided by the present invention;

[0041] Figure 8 It is a structural schematic diagram of the luminous label provided by the present invention;

[0042] Fig. 9 It is a schematic diagram of the structure of the remote cable provided by the present invention;

[0043] Fig.10 It is a schematic diagram of the structure of the male connector panel on the side of the adapter box provided by the present invention;

[0044] Fig.11 It is a schematic diagram of the overall structure of the transfer tooling provided by the present invention.

[0045] Reference numerals

[0046] 1- Junction box;

[0047] 11-first bottom plate; 110-first connection terminal fixing groove;

[0048] 12-second bottom plate; 120-second connection terminal fixing groove;

[0049] 13-first upper cover; 130-third connection terminal fixing groove; 131-first wire pressing groove;

[0050] 14-second upper cover; 140-fourth connection terminal fixing groove; 141-second wire pressing groove;

[0051] 15-connection terminal; 150-luminous label; 151-indicator light;

[0052] 2- Remote cable;

[0053] 3-adapter box; 31-box body; 32-male aviation plug panel; 320-male aviation plug;

[0054] 4-Portable RFID all-in-one machine;

[0055] 5-Near-end cable. DETAILED DESCRIPTION

[0056] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0057] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0058] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0059] In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Combine the following Figure 1-Figure 11 The electrical performance switching device for automatic line finding provided by the present invention is introduced in detail, and the total number of cable cores in this embodiment is 192 as an example for explanation.

[0062] Combination Figure 2 As shown, in the embodiment of the present invention, the test system comprises a transfer fixture A, a transfer fixture B, a test instrument and a test host, and the transfer fixture A and the transfer fixture B have the same structural design and function. When performing a faulty cable test, the two ends of the cable to be tested are respectively connected to the transfer fixture A and the transfer fixture B, and finally connected to the test instrument to form a closed loop circuit to troubleshoot the cable fault.

[0063] The following will take the transfer tooling A as the object to describe its structure and connection method. The structure and connection method of the transfer tooling B are exactly the same as those of the transfer tooling A.

[0064] Combination Figure 3 As shown, the adapter tool A includes a junction box 1, a remote cable 2, an adapter box 3, a portable RFID all-in-one machine 4, and a near-end cable 5.

[0065] Furthermore, the junction box 1 is connected to the cable to be tested at one side and connected to the remote cable 2 at the other side, and its function is to connect the scattered wires of the cable to be tested and provide an installation position for the luminous label 150 .

[0066] Furthermore, one end of the remote cable 2 is connected to the junction box 1 , and the other end is connected to the adapter box 3 , so as to connect the junction box 1 with the adapter box 3 .

[0067] Furthermore, the adapter box 3 is used for connecting the remote cable 2 and the proximal cable 5, provides a portable plug-in interface, improves the maintainability of the adapter tooling, and provides a hanging position for the portable RFID all-in-one machine 4.

[0068] Furthermore, the portable RFID integrated machine 4 is used to identify the luminous tag 150 according to the fault sequence number to find the fault line.

[0069] Combination Figure 4-Figure 6 As shown, the junction box 1 includes a first base plate 11, a second base plate 12, a first upper cover 13, a second upper cover 14 and a plurality of connection terminals 15. Generally, each junction box 1 includes 2 base plates, 2 upper covers, 10 connection terminals and 10 luminous labels.

[0070] Furthermore, the first bottom plate 11 and the second bottom plate 12 have the same structure, and the first upper cover 13 and the second upper cover 14 have the same structure.

[0071] Furthermore, the junction box 1 is composed of an upper and lower structure, wherein the first bottom plate 11 and the first upper cover 13 constitute the upper structure, and the second bottom plate 12 and the second upper cover 14 constitute the lower structure, each layer has 5 connection terminals and 5 luminous labels, and each layer can be connected to at least 5 core wires.

[0072] Combination Figure 7 As shown, the first bottom plate 11 is provided with a plurality of first connection terminal fixing grooves 110 for placing and limiting the connection terminals 15 .

[0073] Furthermore, the second bottom plate 12 is provided with a plurality of second connection terminal fixing grooves 120 for placing and limiting the connection terminals 15 .

[0074] Furthermore, a plurality of third connection terminal fixing grooves 130 are provided on one side of the upper end surface of the first upper cover 13 , and a first wire pressing groove 131 is provided on the opposite side.

[0075] Furthermore, a plurality of fourth connection terminal fixing grooves 140 are provided on one side of the upper end surface of the second upper cover 14 , and a second wire pressing groove 141 is provided on the opposite side.

[0076] Furthermore, the first connecting terminal fixing groove 110 of the first base plate 11 and the third connecting terminal fixing groove 130 of the first upper cover 13, as well as the second connecting terminal fixing groove 120 of the second base plate 12 and the fourth connecting terminal fixing groove 140 of the second upper cover 14, correspond one by one to jointly complete the fixing of the connecting terminal 15, and each third connecting terminal fixing groove 130 and the fourth connecting terminal fixing groove 140 is provided with a fixing buckle for positioning the connecting terminal 15.

[0077] Furthermore, the first bottom plate 11 and the first wire pressing groove 131 of the first upper cover 13 jointly complete the fixing and compaction of the wire, and the second bottom plate 12 and the second wire pressing groove 141 of the second upper cover 14 jointly complete the fixing and compaction of the wire.

[0078] Furthermore, when the 10-core wire bundle is connected to the junction box 1, it is divided into 2 groups, each with 5 cores, and is pressed into the corresponding terminal 15 through the first crimping groove 131 and the second crimping groove 141. After being pressed into place, this part of the structure is tightly pressed with the corresponding base plate.

[0079] Combination Figure 8 As shown, each connection terminal 15 is provided with a light-emitting label 150 and an indicator light 151 .

[0080] Combination Fig. 9 As shown, the remote cable 2 has a total core number of N, which is divided into M bundles at the end, each bundle containing 10 cores of wires, and M is the value of N modulo 10, and 1 is added when it is not an integer. Each bundle contains 10 cores of wires, and the design value of 10 cores is determined based on a large number of field experiments. When each bundle has 10 cores, the problem of wires being entangled with each other is almost non-existent.

[0081] Furthermore, the remote cable 2 is divided into M bundles at the end, the first (M-1) bundles each contain 10 cores, and the last bundle contains N-(M-1)*10 cores, where M is the value of N modulo 10, and 1 is added when it is not an integer, and the number of wires connected to the junction box 1 in the last bundle is less than or equal to 10. Taking the total number of cores as 192, the remote cable 2 is divided into 20 bundles, where the first 19 bundles each contain 10 cores, and the last bundle contains 2 cores.

[0082] Combination Fig.10 As shown, the adapter box 3 includes a box body 31 and a male aviation plug panel 32 symmetrically arranged on both side end surfaces of the box body 31 , and the male aviation plug panel is provided with a plurality of male aviation plugs 320 .

[0083] Furthermore, the male aviation plug panels 32 on both sides of the adapter box body 31 correspond to the female aviation plugs one by one. The female aviation plugs can be plugged into the male aviation plug panels 32 at will. The remote cable 2 and the adapter box 3 are connected by plugging the female aviation plugs into the male aviation plug 320.

[0084] Furthermore, the proximal cable 5 and the adapter box 3 are connected in the same manner as the distal cable 2 and the adapter box 3 .

[0085] Furthermore, this embodiment is described by taking the total number of cores as 192 as an example, and the male aviation plug panel 32 evenly arranges 6 male aviation plugs 320, each male aviation plug having 32 cores. The female aviation plug matches the male aviation plug 320, and each male aviation plug 320 includes 32 points.

[0086] Further, the portable RFID integrated machine 4 is used to check for faulty cables. When the portable RFID integrated machine 4 is used to approach the cable to be tested, the target RFID tag will change color. When the RFID integrated machine 4 is close to the wiring terminal 15, the indicator light 150 will change to green.

[0087] Further, one end of the proximal cable 5 is connected to the adapter box 3, and the other end is welded to the standard connector of the test instrument. The number of cores of each cable can be set arbitrarily according to actual conditions, and the common number of cores mainly includes 16 cores and 32 cores.

[0088] Combination Fig.11 As shown in the figure, a complete set of adapters is illustrated with a total number of 192 cores of cable as an example. Other core numbers can be designed according to this design idea. The farthest end of the adapter is the connection terminal 15, which is used to connect the loose wires of the cable to be tested. The connection terminal 15 is fixed on the junction box 1. The junction box 1 mainly consists of 2 bottom plates, 2 upper covers, 10 terminal blocks, and 10 luminous labels. The bottom plate and the upper cover are fixed by fixing bolts. The adapter tool A is divided into 20 bundles at the end of the far cable 2. The first 19 bundles are each 10 cores, and the last bundle is 2 cores. The transition section is connected to the adapter box 3, which is divided into six bundles of cables, each with 32 cores. Both sides of the adapter box 3 are male head aviation plug panels 32, and 6 bundles of cables are connected on both sides, each with 32 cores. Finally, the 6 bundles of cables are aggregated into one cable. Among them, the male aviation plug panels 32 on both sides of the adapter box 3 are male aviation plugs 320, which correspond one to one with the female aviation plugs of the male aviation plugs 320, and the RFID all-in-one machine 4 is used to receive the test host message and complete the automatic search of the RFID luminous tag.

[0089] The present invention provides a transfer tool that can be used for testing the electrical performance of cables with loose wires at both ends. The transfer tool can quickly connect various loose cables, and the terminal unit design method avoids the disadvantage of cables being entangled with each other during wiring. The design based on RFID luminous tags can help users quickly locate the fault point of the cable, shortening the time for manual troubleshooting of the fault point. In addition, the modular design of the transfer box improves the maintainability of the transfer tool.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrical performance transfer device for automatic line finding, comprising a transfer tool A and a transfer tool B, It is characterized in that The transfer tool A comprises: A junction box (1), one side of which is connected to the cable to be tested, and the other side of which is connected to the remote cable (2); A remote cable (2) is used for connecting the junction box (1) and the adapter box (3); A transfer box (3) used for connecting the far-end cable (2) and the near-end cable (5); A portable RFID integrated machine (4) is used to identify the RFID luminous tag according to the fault sequence number to find the fault line; A near-end cable (5), one side of which is connected to the adapter box (3) and the other side of which is connected to the test instrument; The transfer tool B has the same structural configuration as the transfer tool A; The two ends of the cable to be tested are respectively connected to the adapter A and the adapter B, and finally connected to the test instrument to form a closed-loop circuit.

2. The electrical performance switching device for automatically finding a line according to claim 1, It is characterized in that The junction box (1) comprises a first base plate (11), a second base plate (12), a first upper cover (13), a second upper cover (14) and a plurality of connection terminals (15); the first base plate (11) and the second base plate (12) have completely the same structure; and the first upper cover (13) and the second upper cover (14) have completely the same structure.

3. The electrical performance switching device for automatically finding a line according to claim 2, It is characterized in that The junction box (1) is composed of two layers, the first bottom plate (11) and the first upper cover (13) form an upper structure, and the second bottom plate (12) and the second upper cover (14) form a lower structure. Each layer can be connected with at least 5 core wires.

4. The electrical performance switching device for automatically finding a line according to claim 3, It is characterized in that The first bottom plate (11) is provided with a plurality of first connection terminal fixing grooves (110) for placing and limiting the connection terminals (15); The second bottom plate (12) is provided with a plurality of second connection terminal fixing grooves (120) for placing and limiting the connection terminals (15); A plurality of third connection terminal fixing grooves (130) are provided on one side of the upper end surface of the first upper cover (13), and a first wire pressing groove (131) is provided on the opposite side; A plurality of fourth connection terminal fixing grooves (140) are arranged on one side of the upper end surface of the second upper cover (14), and a second wire pressing groove (141) is arranged on the opposite side.

5. The electrical performance switching device for automatically finding a line according to claim 2, It is characterized in that Each connection terminal (15) is provided with a luminous label (150) and an indicator light (151).

6. The electrical performance switching device for automatically finding a line according to claim 1, It is characterized in that The remote cable (2) has a total core number of N, which is divided into M bundles at the end, each bundle containing 10 core conductors, and M is the remainder of N over 10, and 1 is added if the value is not an integer.

7. The electrical performance switching device for automatically finding a line according to claim 1, It is characterized in that The adapter box (3) comprises a box body (31) and a male aviation plug panel (32) symmetrically arranged on both side end surfaces of the box body (31), wherein the male aviation plug panel is provided with a plurality of male aviation plugs (320).

8. The electrical performance switching device for automatically finding a line according to claim 7, It is characterized in that The adapter box (3) is connected to the remote cable (2) and the near-end cable (5) via a female aviation plug and a male aviation plug (320).

9. The electrical performance switching device for automatically finding a line according to claim 1, It is characterized in that The portable RFID integrated machine (4) is suspended in the adapter box (3) and is used to troubleshoot faulty cables.

10. The electrical performance switching device for automatically finding a line according to claim 1, It is characterized in that One end of the proximal cable (5) is connected to the adapter box (3), and the other end is welded to the standard connector of the test instrument.

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