CN218445781U

CN218445781U - Portable shielded cable fault positioning device

Info

Publication number: CN218445781U
Application number: CN202220629626.9U
Authority: CN
Inventors: 张春芝; 王彬; 马飞宇; 牛小铁
Original assignee: Beijing Electric Safety Technology Research Institute; Beijing University of Technology
Current assignee: Beijing Electric Safety Technology Research Institute; Beijing University of Technology
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2023-02-03
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses a portable shielding cable fault positioning device, including case lid and box, case lid and box are articulated with the side, still include display module and integrated component. The display assembly comprises a display screen, a display panel, an input keyboard, a main panel and a switch lock, wherein the display panel is arranged on the inner side of the box cover, the display screen is embedded in the middle of the display panel, the main panel is arranged on the upper side of the box body, the input keyboard is arranged in the middle of the main panel, and the switch lock is arranged on the same side part of the box cover and the box body; the integrated assembly comprises a structure bottom plate, a structure supporting column, a pressing strip, a battery pack, an electric quantity display module, a control switch and a vector network analyzer module, wherein the structure bottom plate is installed inside the box body, the pressing strip is installed on the side portion of the structure bottom plate, the battery pack and the control switch are both installed in the middle of the main panel, and the vector network analyzer module is installed on the upper side of the structure bottom plate. This scheme is convenient more, quick fixes a position open circuit, fault such as short circuit to appearing in the shielded cable circuit.

Description

Portable shielding cable fault positioning device

Technical Field

The utility model relates to a shielding cable fault location technical field particularly, relates to a portable shielding cable fault location device.

Background

The structure of the shielding cable is respectively as follows from inside to outside: center conductor, insulating layer, outer conducting layer (metal net), wire sheath. The electromagnetic signal transmission device can ensure the transmission of electromagnetic signals on the shielding outer layer under the anti-interference low-loss state, thereby being widely applied to audio and video signal communication and various control signal lines.

Unlike conventional wires, wires with a shielding layer structure are complicated to produce using, for example, a coaxial processing process; the structural integrity of the wire is important to maintain stable performance of the shield wire during deployment of the application. Therefore, whether the cable is subjected to quality inspection during production or periodic maintenance of the cable after deployment, a quick method is needed to identify and locate possible defects or faults on the cable.

A common method for performing nondestructive fault diagnosis on a cable is a Time Domain Reflectometry (TDR) method, which realizes cable fault location by a time difference between an incident pulse signal and a reflected signal, but has low test accuracy due to attenuation and dispersion effects in the propagation of the injected pulse signal and the influence of environmental electromagnetic interference. In the Frequency Domain Reflectometry (FDR), a vector network analyzer is used, and a sweep frequency signal is used to measure the reflection coefficient of the cable, and the reflection coefficient is very sensitive to impedance mismatching caused by various structural defects or faults (such as short circuit, open circuit and the like) in the wire, so that the positioning accuracy is better than that of a time domain method.

A vector network analyzer desktop product is combined with matched software to calculate a distance spectrum, so that quality analysis and fault location of a shielded cable can be rapidly carried out in fixed places such as a laboratory or a workshop. However, fault location analysis is performed rapidly in various deployment environments at the present stage, and the cost is high and the device is not flexible enough, so that a new portable shielding cable fault location device is needed, and the device can be matched with a modularized vector network analyzer and matched with specialized software.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a portable shielded cable fault locating device to improve the problems in the related art.

In order to achieve the above object, the utility model provides a portable shielding cable fault location device, including case lid and box, case lid and box are articulated with the side, still include display module and integrated component.

The display assembly comprises a display screen, a display panel, an input keyboard, a main panel and a switch lock, wherein the display panel is arranged on the inner side of the box cover, the display screen is embedded in the middle of the display panel, the main panel is arranged on the upper side of the box body, the input keyboard is arranged in the middle of the main panel, and the switch lock is arranged on the same side part of the box cover and the box body;

the integrated assembly comprises a structure bottom plate, a structure supporting column, a pressing strip, a battery pack, an electric quantity display module, a control switch and a vector network analyzer module, wherein the structure bottom plate is installed inside the box body, the structure supporting column is installed between the structure bottom plate and a main panel, the pressing strip is installed on the side portion of the structure bottom plate, the battery pack and the control switch are both installed in the middle of the main panel, and the vector network analyzer module is installed on the upper side of the structure bottom plate.

The utility model discloses an in the embodiment, the hinge is installed jointly to the lateral part of case lid and box, and the through-hole has been seted up to the both ends of hinge through bolt and case lid and box installation respectively, hinge inside, and the through-hole is and establishes bilateral symmetry setting.

In an embodiment of the present invention, the handle is mounted on the lateral part of the box body through a rivet, and the plastic is laid on the outer side of the handle.

The utility model discloses an in one embodiment, the structure bottom plate passes through the rivet to be fixed with the box, and the structure support column is provided with a plurality of, and a plurality of structure support column is ring array around the center of the structure bottom plate and distributes, and the screw is passed through at the top of a plurality of structure support columns and is connected with the main panel.

The utility model discloses an in one embodiment, control mainboard and USB interface are installed to the main panel lateral part, and the wire and the USB interface connection of control mainboard.

The utility model discloses an in the embodiment, the louvre has been seted up to the main panel upside, and radiator fan is installed to the louvre below.

The utility model discloses an in the embodiment, the battery package sets up to lithium ion battery package, and the main board upside is provided with external power source interface, and the battery package passes through the wire with external power source interface and is connected.

The utility model discloses an in the embodiment, the DCDC module is installed to the main panel lateral part, DCDC module and control mainboard, vector network analyzer module, display screen and control switch electric connection.

The utility model discloses an in the embodiment, the main panel upside is provided with the female first interface of N type, and the box is inside to have laid the N type coaxial shielding cable of two customizations, and the public first interface connection of N type coaxial shielding cable one end is to the interface on the vector network analyzer module, and the female first interface of other end run-through flange N type is installed on the female first interface of N type.

Compared with the prior art, the beneficial effects of the utility model are that: when the portable shielding cable fault positioning device is used, the device is protected inside the box cover and the box body through the embedded arrangement of the display screen and the input keyboard, so that the device is protected, and the driving module of the display screen is also encapsulated in the box cover, so that the space in the box body is saved; the box cover and the box body can be firmly locked together by matching the switch lock with the box cover and the box body, and meanwhile, the unlocking is very convenient; the components are integrally installed in the box body through the arrangement of the structural bottom plate, the structural support columns and the main panel, so that a stable environment is provided for installation of the components of the device; through the arrangement of the battery pack, the device can be independently powered, so that the use flexibility is improved; by setting the vector network analyzer module, customized software deployed in a computer can be matched, and automatic configuration of test parameters in the cable test process can be realized.

Drawings

Fig. 1 is a schematic overall three-dimensional structure diagram of a portable shielded cable fault location device according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of an integrated module of the portable shielded cable fault location device according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a DCDC power module of the portable shielded cable fault location device according to an embodiment of the present invention;

fig. 4 is a schematic view of a hinge structure of the portable shielded cable fault location device according to an embodiment of the present invention;

fig. 5 is a schematic system integration relationship diagram of the portable shielded cable fault location device according to the embodiment of the present invention.

In the figure: 1. a structural floor; 2. a structural support column; 3. layering; 4. a control main board; 5. a USB interface; 6. heat dissipation holes; 7. a battery pack; 8. an external power interface; 9. a DCDC module; 10. an electric quantity display module; 11. a control switch; 12. a vector network analyzer module; 13. an N-type female connector; 110. a display screen; 120. displaying the board surface; 130. a hinge; 140. an input keyboard; 150. a main panel; 160. a handle; 170. and (6) opening and closing the lock.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate in order to facilitate the embodiments of the invention described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

Please refer to fig. 1-5, the utility model provides a portable shielding cable fault locating device, including case lid and box, case lid and box are articulated with the lateral part, still include display module and integrated component, and display module and integrated component all install the lateral part at case lid and box, and display module is used for data input and data display, and integrated component is arranged in installing each module integration in the box, saves the space of installation.

Referring to fig. 1, the display assembly of the display assembly includes a display screen 110, a display panel 120, an input keyboard 140, a main panel 150 and a switch lock 170, the display panel 120 is installed inside the box cover, the display screen 110 is embedded in the middle of the display panel 120, the main panel 150 is installed on the upper side of the box body and used for sealing the box body, main modules are all installed in the box body, the input keyboard 140 is installed in the middle of the main panel 150, and a ball mouse is attached to the keyboard to facilitate user input. The handle 160 is arranged on the side part of the box body through a rivet, and plastic is laid on the outer side of the handle 160, so that the box body is convenient to carry and is more convenient to carry. The switch lock 170 is installed on the same side portion of the box cover and the box body, the switch lock 170 is a snap-fastener type locking device, two sides of the handle 160 are respectively provided with one switch lock, the box body and the box cover can be firmly locked together, and meanwhile unlocking is very convenient.

During the specific setting, see fig. 4, hinge 130 is installed jointly to the lateral part of case lid and box, and the both ends of hinge 130 are installed with the case lid and box through the bolt respectively, and hinge 130 is inside to have seted up the through-hole, and the through-hole is and establishes bilateral symmetry setting. While the twisting function is implemented, the signal lines and power lines can be encapsulated into the display screen 110, thereby avoiding the possibility of damage to these lines due to exposure during use.

The integrated assembly comprises a structure bottom plate 1, a structure supporting column 2, a pressing strip 3, a battery pack 7, an electric quantity display module 10, a control switch 11 and a vector network analyzer module 12, wherein the structure bottom plate 1 is installed inside the box body, the structure supporting column 2 is installed between the structure bottom plate 1 and a main panel 150, the pressing strip 3 is installed on the lateral portion of the structure bottom plate 1, the battery pack 7 and the control switch 11 are both installed in the middle of the main panel 150, and the vector network analyzer module 12 is installed on the upper side of the structure bottom plate 1.

When specifically setting up, see fig. 2 and fig. 3, most of the modules that this device is integrated are all arranged in the box, consider the various removal service environment of portable equipment, each module all needs the fastening in the box, consequently structure bottom plate 1 passes through the rivet and is fixed with the box, structure support column 2 is provided with a plurality of, and a plurality of structure support column 2 is annular array around structure bottom plate 1 center and distributes, and the top of a plurality of structure support column 2 is passed through the screw and is connected with main panel 150, provides stable environment for integrated installation. The pressing strip 3 is a metal pressing strip, is fixed on the bottom plate through a screw and fixes the module.

Main panel 150 lateral part is installed control mainboard 4 and USB interface 5 through the bolt, and control mainboard 4 chooses for use the PICO880 series 3.5 cun industrial control mainboard of moxa news science and technology, and the integration has memory and solid state hard drives, when saving space, still can ensure that computing resource can satisfy the application. The wire of control mainboard 4 is connected with USB interface 5, and USB interface 5 is provided with 2, and convenience of customers transmits data. One for connecting to the display screen 110 and one for communicating with the vector network analyzer module 12 inside the housing.

The CPU on the control mainboard 4 is provided with a radiator, meanwhile, the upper side of the main panel 150 is provided with a heat radiation hole 6, and a heat radiation fan is arranged below the heat radiation hole 6. After the system is powered on, the heat dissipation fan starts to work continuously to evacuate heat accumulated by the CPU on the control main board 4 and the vector network analyzer module 12 in the case.

The battery pack 7 is set as a lithium ion battery pack, so that the device can be powered by an external power supply and also can be powered by a battery of the device, and the requirement of mobile application is fully met. An external power supply interface 8 is arranged on the upper side of the main panel 150, and the battery pack 7 is connected with the external power supply interface 8 through a lead. After the external power supply is connected through the power adapter, the battery pack 7 is switched into a charging mode, and meanwhile, the external power supply directly supplies power to the whole device; when there is no external power supply, the device can operate independently for more than 5 hours by virtue of its own battery pack 7.

Referring to fig. 3, the DCDC module 9 is mounted on the side of the main panel 150 through bolts, and the DCDC module 9 is electrically connected to the control main board 4, the vector network analyzer module 12, the display screen 110 and the control switch 11. The DCDC module 9 is provided with two, and two DCDC modules 9 convert 5V respectively and supply power for control mainboard 4, vector network analyzer module 12, radiator fan are stable to and convert 12V and supply power for display screen 110 is stable, and electric quantity display module 10 converts the current residual capacity of battery package 7 through measuring battery package output voltage. The control switch 11 is used for controlling the power-on of the whole system, is connected in series in the power output loop, and when the system is closed, the system is powered on, the mainboard 4 is controlled to be powered on and started, and the cooling fan starts to work. When the computer exits the operating system, the control switch 11 needs to be turned off to turn off the cooling fan.

The upside of the main panel 150 is provided with an N-type female connector 13, two customized N-type coaxial shielding cables are arranged in the box body, a male connector at one end of each N-type coaxial shielding cable is connected to a connector on the vector network analyzer module, and the other end of each N-type coaxial shielding cable is installed on the N-type female connector 13 through a flange N-type female connector. The coaxial shielding cable adopts the mode of one end elbow and one end straight head, and when conveniently laying in the box, reduced the adverse effect to measuring result because of the buckling of coaxial cable itself brings. In the scheme, the device is matched with customized software deployed in a computer, so that automatic configuration of test parameters in the cable test process can be realized. The test calibration can be completed by a reference cable which has the same material and the same structure as the tested cable. Finally, according to the cable length input by a user and the expected distance resolution, customized software can automatically give optimal configuration parameters, realize one-key frequency sweep measurement and distance spectrum analysis and directly display the distance spectrum information of various faults in the cable.

Specifically, the working principle of the portable shielded cable fault positioning device is as follows: when the device is used, the display component is used for data input and data display, the integrated component is used for integrally installing all modules in the box body, the installation space is saved, the device is protected in the box cover and the box body through the embedded arrangement of the display screen 110 and the input keyboard 140, the protection of the device is further provided, and the driving module of the display screen 110 is also packaged in the box cover so as to save the space in the box body; the switch lock 170 is matched with the box cover and the box body, so that the box cover and the box body can be firmly locked together, and meanwhile, the unlocking is very convenient; the components are integrally installed in the box body through the arrangement of the structural bottom plate 1, the structural support columns 2 and the main panel 150, so that a stable environment is provided for installation of the device components; through the arrangement of the battery pack 7, the device can be independently powered, so that the use flexibility is improved; by setting the vector network analyzer module 12, customized software deployed in a computer can be matched, and automatic configuration of test parameters in a cable test process can be realized.

It should be noted that: the model specifications of the display screen 110, the input keyboard 140, the control main board 4 and the battery pack 7 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art, so detailed description is omitted.

The power supply and the principle of the display 110, the input keyboard 140, the control board 4 and the battery pack 7 will be clear to those skilled in the art and will not be described in detail here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a portable shielded cable fault locating device, includes case lid and box, the case lid with box side portion is articulated, its characterized in that still includes:

the display assembly comprises a display screen (110), a display panel surface (120), an input keyboard (140), a main panel (150) and a switch lock (170), wherein the display panel surface (120) is installed on the inner side of the box cover, the display screen (110) is embedded in the middle of the display panel surface (120), the main panel (150) is installed on the upper side of the box body, the input keyboard (140) is installed in the middle of the main panel (150), and the switch lock (170) is installed on the same side of the box cover and the box body;

the integrated component comprises a structure bottom plate (1), a structure supporting column (2), a pressing strip (3), a battery pack (7), an electric quantity display module (10), a control switch (11) and a vector network analyzer module (12), wherein the structure bottom plate (1) is installed inside a box body, the structure supporting column (2) is installed between the structure bottom plate (1) and a main panel (150), the pressing strip (3) is installed on the side portion of the structure bottom plate (1), the battery pack (7) and the control switch (11) are installed at the middle portion of the main panel (150), and the vector network analyzer module (12) is installed on the upper side of the structure bottom plate (1).

2. The portable shielded cable fault location device of claim 1, wherein a hinge (130) is installed at the side of the box cover and the side of the box body together, two ends of the hinge (130) are respectively installed with the box cover and the box body through bolts, and through holes are formed in the hinge (130), and the through holes are arranged in a left-right symmetrical manner.

3. The portable shielded cable fault locating device of claim 1, wherein the side of the box body is provided with a handle (160) by rivets, and the outer side of the handle (160) is coated with plastic.

4. A portable shielded cable fault location device according to claim 1, wherein the structure base plate (1) is fixed to the box body by rivets, the structure supporting columns (2) are provided in a plurality, the structure supporting columns (2) are distributed in a circular array around the center of the structure base plate (1), and the tops of the structure supporting columns (2) are connected to the main panel (150) by screws.

5. A portable shielded cable fault locating device as claimed in claim 1, wherein the main panel (150) is provided with a control main board (4) and a USB interface (5) at the side, and the wires of the control main board (4) are connected with the USB interface (5).

6. The portable shielding cable fault location device of claim 1, wherein the main panel (150) is provided with heat dissipation holes (6) at the upper side, and a heat dissipation fan is installed below the heat dissipation holes (6).

7. The portable shielded cable fault location device of claim 1, wherein the battery pack (7) is configured as a lithium ion battery pack, an external power interface (8) is disposed on the upper side of the main panel (150), and the battery pack (7) is connected to the external power interface (8) through a wire.

8. The portable shielded cable fault locating device of claim 5, wherein the DCDC module (9) is installed at the side of the main panel (150), and the DCDC module (9) is electrically connected with the control main board (4), the vector network analyzer module (12), the display screen (110) and the control switch (11).

9. The portable shielded cable fault location device of claim 1, wherein an N-type female connector (13) is disposed on the upper side of the main panel (150), two customized N-type coaxial shielded cables are disposed inside the box, one end of the N-type coaxial shielded cable is connected to a connector on the vector network analyzer module through a male connector, and the other end of the N-type coaxial shielded cable is mounted on the N-type female connector (13) through a flange.