Cable fault simulation device
By designing a cable fault simulation device, the problem of accurately simulating cable mechanical damage was solved, enabling accurate simulation and testing of cable faults, and improving the reliability of test results and training efficiency.
Patent Information
- Application Number
- CN202423067157.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Cables are prone to mechanical damage and insulation defects after frequent modifications and bending, leading to frequent failures. Existing technologies cannot accurately simulate the mechanical properties and fault locations of cables under laboratory conditions, affecting the safe operation and positioning efficiency of cables.
A cable fault simulation device was designed, including a simulation box, an environmental simulation component, and a fault simulation component. It can simulate high temperature, low temperature, humidity, and other conditions in a closed and controllable environment, simulate the mechanical stress of the cable through clamping components and tension driving components, and set fault connection points to perform accurate fault simulation.
It achieves accurate simulation of cable faults, ensures the repeatability and consistency of test results, avoids destructive testing of actual cables, saves material and labor costs, and improves training efficiency and accuracy.
Smart Images
Figure CN223857328U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power cable simulation test technical field, especially relate to a cable fault simulation device. BACKGROUND
[0002] Power cable is an important component of power system, in recent years, power grid company increases distribution network construction, rural power grid reconstruction, more and more overhead line is changed into buried cable, and the requirement of distribution network line operation stability is also higher and higher.The frequent transformation of line, the change of urban road, the mixed laying of different types of underground pipelines, the lack of effective management make that cable path data is missing or incomplete, and correct cable path diagram or effective communication cannot be given in the first time during road construction, leading to unnecessary external damage to cable.The frequency of various cable faults shows the trend of year by year increase, once the cable fails, the normal operation is affected, and the accurate fault position needs to be found as soon as possible, and the repaired cable is put into normal use, so that the timeliness of cable fault positioning is required.
[0003] However, the cable often bends to different degrees, and long-term bending can cause various performance degradation at the bending part, and in a humid environment, it is more susceptible to moisture intrusion, leading to defects such as internal water treeing and electric treeing in the cable, causing mechanical damage and affecting the normal use of the cable, and seriously endangering the safe operation of the cable. UTILITY MODEL CONTENT
[0004] The main purpose of the utility model is to provide a cable fault simulation device, which aims to simulate and detect the mechanical damage fault of the cable in a relatively real simulation environment.
[0005] To achieve the above purpose, the utility model provides a cable fault simulation device, which comprises:
[0006] The simulation box comprises an insulation box body and an environment simulation assembly, the simulation cavity is formed in the insulation box body, the environment simulation assembly is contained in the simulation cavity, and the environment simulation assembly comprises a heat source lamp, a refrigerator and a spraying pipe.
[0007] The simulation cable comprises three incoming line terminals, three outgoing line terminals and three single-core cables, each pair of the incoming line terminals and the outgoing line terminals is arranged on the two sides of the simulation box in a corresponding interval, each pair of the incoming line terminals and the outgoing line terminals is connected by a single-core cable, each single-core cable is provided with a fault connection point, and the fault connection point is used for connecting a fault simulator; and
[0008] A fault simulation assembly is arranged in the simulation cavity, and the fault simulation assembly comprises a guide rail, a first clamping piece, a second clamping piece, and a stretching driving piece. The guide rail is arranged on the cavity bottom wall of the simulation cavity. The first clamping piece and the second clamping piece are in sliding fit with the guide rail and are movable along the guide rail. The first clamping piece and the second clamping piece are used for clamping two ends of the single-core cable respectively. The stretching driving piece is used for driving the first clamping piece to move towards a side away from the second clamping piece, and / or the stretching driving piece is used for driving the second clamping piece to move towards a side away from the first clamping piece.
[0009] In an embodiment, the environment simulation assembly further comprises a temperature and humidity controller and a control panel electrically connected to the temperature and humidity controller. The temperature and humidity controller is electrically connected to the heat source lamp, the refrigerating device, and the spraying pipe. The control panel is arranged on the outside of the insulated box.
[0010] In an embodiment, the first clamping piece and / or the second clamping piece comprises:
[0011] A clamping plate comprises a connecting plate and mounting plates arranged on both sides of the connecting plate and opposite to each other.
[0012] A hanging wheel is connected to the mounting plate and rotatable relative to the clamping plate. The hanging wheel is rollable along the guide rail.
[0013] Two air bag assemblies comprise air bag bags and pressure control valves. The air bag bags are arranged on the sides of the mounting plates close to each other to jointly form a clamping space for clamping the single-core cable. The pressure control valves are used for controlling the air bag bags to deflate and shrink or inflate and expand, so that the two air bag bags can jointly clamp or separately release the single-core cable.
[0014] In an embodiment, the stretching driving piece comprises a first motor, a second motor, a first transmission mechanism, and a second transmission mechanism. The transmission mechanism is connected to the first clamping piece, the second transmission mechanism is connected to the second clamping piece, the first motor is used for driving the first transmission mechanism, and the second motor is used for driving the second transmission mechanism.
[0015] In an embodiment, the single-core cable comprises a plurality of cable units connected in sequence. Two adjacent cable units are connected through a quick release structure. The fault connection point is arranged in one of the plurality of cable units.
[0016] In an embodiment, the quick release structure is a plug-in connector.
[0017] In an embodiment, the fault simulation device further comprises a plurality of light strips arranged in the simulation cavity, and the plurality of light strips are respectively arranged on different cavity walls of the simulation cavity.
[0018] In an embodiment, an outer side of the insulation box is provided with an observation opening communicating with the simulation cavity.
[0019] The simulation box further comprises an observation window arranged in the observation opening.
[0020] In an embodiment, the observation window is made of glass or acrylic.
[0021] The utility model discloses a simulation box and environmental simulation assembly design, provide a closed and controllable environment, so that the simulation of cable fault can be carried out under laboratory conditions, such as simulating high temperature, low temperature, humidity etc., to test the performance and durability of cable under these environments, fully simulate the influence of external environmental factors on cable, in addition, through the first clamping piece, second clamping piece and stretching drive part in the fault simulation assembly, the damage condition of cable under the mechanical stress such as stretching, compression, bending can be accurately simulated, which provides an effective means for mechanical performance test of cable, and the setting of fault connection point allows the simulation of failure of specific parts of cable, so that the problems that cable may encounter in actual use can be more accurately simulated, and then the complex and real condition simulation of simultaneous mechanical failure and point failure can be realized. In general, since the simulation device can accurately control the conditions and simulation environment of fault simulation, the repeatability and consistency of test results can be ensured, the performance of different cables can be compared conveniently, and destructive test on actual cable can be avoided through fault test by the simulation device, so that material and manpower cost are saved, training efficiency is improved, and training cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.
[0023] Fig. 1 It is an embodiment of the structure schematic diagram of cable fault simulation device;
[0024] Fig. 2 It is the structure schematic diagram of another embodiment of cable fault simulation device;
[0025] Fig. 3 It is the structure schematic diagram of an embodiment of the first clamping piece.
[0026] BRIEF DESCRIPTION OF DRAWINGS
[0027] 1, simulation box; 11, insulating box; 12, environment simulation assembly; 121, heat source lamp; 122, refrigerator; 123, spray pipe; 2, simulation cable; 21, incoming terminal; 22, outgoing terminal; 23, single-core cable; 3, fault simulation assembly; 31, guide rail; 32, first clamping piece; 321, clamping plate; 322, hanging wheel; 323, airbag assembly; 33, second clamping piece; 34, stretching driving piece; 4, control panel; 5, light bar; 6, observation window.
[0028] The realization, functional features and advantages of the utility model will be further described in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0030] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.
[0031] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0032] The utility model provides a kind of cable fault simulation device 100.
[0033] Please refer to Figs. 1 to 3The utility model discloses a cable fault simulation device 100, for realizing above -mentioned purpose, the utility model provides a cable fault simulation device 100, including simulation box 1, simulation cable 2 and fault simulation subassembly 3, simulation box 1 includes insulating box 11 and environmental simulation subassembly 12, forms simulation cavity 111 in insulating box 11, and environmental simulation subassembly 12 is contained in simulation cavity 111, and environmental simulation subassembly 12 includes heat source lamp 121, refrigerator 122 and spray pipe 123, simulation cable 2 includes three incoming terminals 21, three outgoing terminals 22 and three single core cables 23, and three incoming terminals 21 and three outgoing terminals 22 are set up in pairs and are correspondingly spaced and are located at the both sides of simulation box 1, and each pair of incoming terminals 21 and outgoing terminals 22 is connected through a single core cable 23, and each single core cable 23 is equipped with a fault connection point, and the fault contact point is used for accessing fault simulator 25, fault simulation subassembly 3 is contained in simulation cavity 111, and fault simulation subassembly 3 includes guide rail 31, first clamping piece 32, second clamping piece 33 and stretch drive part 34, guide rail 31 is located at the cavity bottom wall of simulation cavity 111, and first clamping piece 32 and second clamping piece 33 are all with guide rail 31 sliding fit and can move along guide rail 31, and first clamping piece 32 and second clamping piece 33 are used for respectively clamping the both ends of a single core cable 23, and stretch drive part 34 is used for driving first clamping piece 32 to move towards the side away from second clamping piece 33, and / or, stretch drive part 34 is used for driving second clamping piece 33 to move towards the side away from first clamping piece 32.
[0034] The utility model discloses a simulation box 1 and environmental simulation subassembly 12's design provides a closed and controllable environment, so that the simulation of cable fault can be carried out under the laboratory condition, such as simulation high temperature, low temperature, humidity etc., to test the performance and durability of cable under these environments are sufficient, fully simulate the influence of external environmental factors to cable, in addition, through first clamping piece 32, second clamping piece 33 and stretch drive part 34 in fault simulation subassembly 3, the damage condition of simulation cable 2 under the mechanical stress such as stretching, compression, bending can be accurately simulated, and an effective means is provided for the mechanical performance test of cable, and the setting of fault connection point allows the specific part of simulation cable 2 to fail, so that the problem that simulation cable 2 can encounter in actual use is more accurately simulated, and then the complex and real condition simulation of mechanical failure and point failure can be realized simultaneously. In general, since the simulation device can accurately control the condition of fault simulation, therefore can guarantee the repeatability and consistency of test result, also can play the role of facilitating the comparison of the performance of different cables, and through the simulation device carries out fault test, can avoid doing destructive test on actual cable, thereby saves material and manpower cost, improves training efficiency, reduces training cost.
[0035] In an embodiment, the environmental simulation assembly 12 further comprises a temperature and humidity controller and a control panel 4 electrically connected to the temperature and humidity controller, the temperature and humidity controller being electrically connected to the heat source lamp 121, the refrigerating device 122 and the spray pipe 123, and the control panel 4 being arranged outside the insulating box 11. The temperature and humidity controller can accurately control the temperature and humidity in the simulation box 1, ensuring that the environmental conditions meet the test requirements, thereby improving the accuracy and reliability of the test results, and through the control panel 4, the operator can conveniently adjust and monitor the temperature and humidity, adapt to different test conditions, and increase the flexibility of the test.
[0036] In an embodiment, the first clamping member 32 and / or the second clamping member 33 comprises a clamping plate, a hanging wheel 323 and two air bag assemblies 324, the clamping plate comprises a connecting plate 321 and mounting plates 322 arranged on both sides of the connecting plate 321 and opposite to each other, the hanging wheel 323 is connected to the mounting plates 322 and rotatable relative to the clamping plate, and the hanging wheel 323 can roll along the guide groove 311 of the guide rail 31; the two air bag assemblies 324 comprise air bag bags and pressure control valves, the two air bag bags are arranged on the sides of the two mounting plates 322 close to each other to jointly form a clamping space for clamping the single-core cable 23, and the pressure control valves are used to control the air bag bags to deflate to reduce or inflate to increase, so that the two air bag bags can jointly clamp or separately release the single-core cable 23. Through the inflation and deflation of the air bag assemblies 324, the first clamping member 32 and / or the second clamping member 33 can flexibly clamp or release the single-core cable 23, adapt to cables of different sizes and shapes, and the softness of the air bag can uniformly distribute the pressure on the cable, reducing stress concentration to avoid the risk of cable breakage due to improper operation by the trainee, the inflation and deflation of the air bag can be accurately controlled through the pressure control valve, realizing accurate adjustment of the clamping force on the cable, in addition, the air bag clamps the cable and applies tension, which can simulate the stress condition of the cable 2 in actual application, helping to test the durability and fault point 24 of the cable.
[0037] In an embodiment, the stretching driving member 34 comprises a first motor, a second motor, a first transmission mechanism and a second transmission mechanism, the transmission mechanism is connected to the first clamping member 32, the second transmission mechanism is connected to the second clamping member 33, the first motor is used to drive the first transmission mechanism, and the second motor is used to drive the second transmission mechanism. Through the motor driving the transmission mechanism, the moving speed and direction of the first clamping member 32 and the second clamping member 33 can be accurately controlled, thereby realizing accurate control of the cable stretching, and the response speed of the motor driving the transmission mechanism is fast, which can quickly adjust the position of the clamping member to adapt to various situations that may occur during the test.
[0038] In an embodiment, the single-core cable 23 comprises a plurality of cable units connected in sequence, and the quick-release structure is arranged between two adjacent cable units. The fault connection point is arranged in one of the plurality of cable units. The quick-release structure allows quick disassembly and replacement of the cable units, so that the cable can be flexibly extended or shortened as needed to adapt to different test requirements, such as testing how to determine the position of the fault point 24 of the cable through data results.
[0039] In an embodiment, the quick-release structure is a plug-in connector. The plug-in connector allows quick disassembly and replacement of the cable units, facilitating maintenance and repair of the device, and quickly changing the position of the fault point 24 after a test to continue testing. In other embodiments, the quick-release structure can also be a threaded connector or a snap connector.
[0040] In an embodiment, the fault simulation device further comprises a plurality of light strips 5 arranged in the simulation cavity 111. The plurality of light strips 5 are respectively arranged on different cavity walls of the simulation cavity 111. By controlling the parameters such as brightness, color, and brightness of these light strips 5, different environmental light effects can be simulated, such as daytime, dusk, night, overcast, etc. The light conditions in different environments can be simulated by controlling the brightness and color of these light strips 5, such as simulating sunlight during the day, street lighting at night, indoor warm lighting, etc. This can help engineers more intuitively observe the changes in light during the cable fault simulation process, and help them more accurately determine the position and severity of the cable fault. At the same time, environmental light simulation can also increase the realism of the simulation experiment and improve the reliability of the simulation results.
[0041] In an embodiment, the outer side of the insulating box 11 is provided with an observation port communicating with the simulation cavity 111; the simulation box 1 further comprises an observation window 6 arranged in the observation port. The observation window 6 allows the operator to observe the inside of the simulation cavity 111 from the outside, including the state of the light strips 5 and the fault simulation situation. Through the observation window 6, the operator can monitor the changes in the simulation process in real time and timely discover and handle problems. The observation window 6 facilitates the observation and monitoring of the inside of the simulation cavity 111 by the operator, improving the convenience and efficiency of the operation. At the same time, the design of the observation window 6 also increases the practicality and operability of the simulation box 1, making the operation more intuitive and convenient.
[0042] In an embodiment, the observation window 6 is made of glass or acrylic. The observation window 6 made of glass or acrylic has certain transparency and durability, can clearly observe the internal conditions of the simulation cavity 111, and has certain protection performance, which can protect the internal equipment of the simulation cavity 111 from the influence of the external environment. The glass material has high transparency, and the observation effect is clearer. The acrylic material has good impact resistance and weather resistance, and is more suitable for use in some special environments. Selecting a suitable material for the observation window 6 can ensure that the operator can accurately observe the internal conditions of the simulation cavity 111, and improve the convenience and efficiency of operation.
[0043] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like made by utilizing the contents of the present application specification and drawings within the inventive concept of the present application are included in the patent protection range of the present application.
Claims
1. A cable fault simulation device, characterized by, The simulation device comprises: a simulation box comprising an insulated box body and an environment simulation assembly, a simulation cavity is formed in the insulated box body, and the environment simulation assembly is arranged in the simulation cavity, wherein the environment simulation assembly comprises a heat source lamp, a refrigerator, and a spraying pipe; a simulation cable comprising three incoming terminals, three outgoing terminals, and three single-core cables, the three incoming terminals and the three outgoing terminals are arranged in pairs and are arranged at corresponding intervals on two sides of the simulation box, each pair of the incoming terminals and the outgoing terminals are connected by a single-core cable, each single-core cable is provided with a fault connection point, and the fault connection point is used for connecting a fault simulator; and a fault simulation assembly arranged in the simulation cavity, the fault simulation assembly comprises a guide rail, a first clamping member, a second clamping member, and a stretching driving member, the guide rail is arranged on a cavity bottom wall of the simulation cavity, the first clamping member and the second clamping member are in sliding fit with the guide rail and can move along the guide rail, the first clamping member and the second clamping member are used for clamping two ends of a single-core cable respectively, and the stretching driving member is used for driving the first clamping member to move towards a side away from the second clamping member and / or driving the second clamping member to move towards a side away from the first clamping member.
2. The cable fault simulation apparatus of claim 1, wherein, The environment simulation assembly further comprises a temperature and humidity controller and a control panel electrically connected to the temperature and humidity controller, the temperature and humidity controller is electrically connected to the heat source lamp, the refrigerator, and the spraying pipe, and the control panel is arranged on the outside of the insulated box body.
3. The cable fault simulation apparatus of claim 1, wherein, The first clamping member and / or the second clamping member comprise: a clamping plate comprising a connecting plate and mounting plates arranged on both sides of the connecting plate and opposite to each other; a hanging wheel connected to the mounting plates and rotatable relative to the clamping plate, the hanging wheel can roll along the guide rail; and two air bag assemblies comprising air bag bags and pressure control valves, the air bag bags are arranged on a side of the mounting plates close to each other to jointly form a clamping space for clamping the single-core cable, and the pressure control valves are used for controlling the air bag bags to deflate and shrink or inflate and expand, so that the two air bag bags can jointly clamp or separately release the single-core cable.
4. The cable fault simulation apparatus of claim 1, wherein, The stretching driving member comprises a first motor, a second motor, a first transmission mechanism, and a second transmission mechanism, the first transmission mechanism is connected to the first clamping member, the second transmission mechanism is connected to the second clamping member, the first motor is used for driving the first transmission mechanism, and the second motor is used for driving the second transmission mechanism.
5. The cable fault simulation apparatus of claim 1, wherein, The single-core cable comprises a plurality of cable units connected in sequence, adjacent two cable units are connected through a quick release structure, and the fault connection point is arranged in one of the plurality of cable units.
6. The cable fault simulation apparatus of claim 5, wherein, The quick release structure is a plug-in connector.
7. The cable fault simulation apparatus of claim 1, wherein, The fault simulation device further comprises a plurality of light strips arranged in the simulation cavity, and the light strips are arranged on different cavity walls of the simulation cavity.
8. The cable fault simulation apparatus of claim 1, wherein, An observation port communicating with the simulation cavity is formed on the outer side of the insulated box body. The simulation box further comprises an observation window, which is arranged on the observation port.
9. The cable fault simulation apparatus of claim 8, wherein, The observation window is made of glass or acrylic.