Cable communication element for power system

Abstract

The invention discloses a cable communication element for a power system, the cable communication element for the power system comprises a sleeve, a monitoring piece and a shell, the two ends of the sleeve are respectively provided with a mounting part, the mounting parts are used for fixing a cable, a conductive rod is arranged in the sleeve, the part, located in the sleeve, of the cable is connected with the conductive rod, and a guide groove is formed in the peripheral wall of the conductive rod; the monitoring part is arranged on the sleeve, a probe of the monitoring part penetrates through the peripheral wall of the sleeve and is arranged in the guide groove so that the probe of the monitoring part can make contact with the conductive rod, the shell is connected with the sleeve, and the shell is used for wrapping the part, located outside the sleeve, of the monitoring part. According to the cable communication element for the electric power system, the power-on condition of the conductive rod is monitored in real time through the monitoring piece, so that the state of the connecting position can be reflected in time, and abnormal conditions can be found and handled rapidly and accurately. Through real-time monitoring, unnecessary regular inspection and manual detection can be avoided, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to a cable connection element for an electric power system. Background Art

[0002] With the development of social economy and the advancement of science and technology, the power system is becoming increasingly complex. As an important part of the power transmission and distribution system, the safe and stable operation of cables is crucial to the reliability of the entire power system. The cable intermediate connector is the weak link in the cable line. Once a failure occurs, it will directly affect the safety and reliability of the power system.

[0003] However, in actual operation, there is often a problem of being unable to monitor and judge faults in real time. In related technologies, fault monitoring of cable intermediate connectors usually relies on regular inspections and manual inspections. The inspection cycle is long and faults cannot be discovered in real time. In addition, there are multiple connectors on the cables in the power system. When a connector fails, it is impossible to directly determine where the fault occurred. It takes some time to be discovered, which has a serious impact on maintenance efficiency. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides a cable connection element for an electric power system, which solves the problem in the related art that a cable connector cannot monitor the connection point after the cable is connected.

[0006] The cable connection element for a power system according to an embodiment of the present invention comprises:

[0007] A sleeve, wherein both ends of the sleeve are respectively provided with mounting parts, the mounting parts are used to fix the cable, a conductive rod is arranged in the sleeve, a portion of the cable located in the sleeve is connected to the conductive rod, and a guide groove is arranged on the peripheral wall of the conductive rod;

[0008] A monitoring member, wherein the monitoring member is arranged on the sleeve, and a probe of the monitoring member passes through the peripheral wall of the sleeve and is placed in the guide groove so that the probe of the monitoring member contacts the conductive rod;

[0009] A shell is connected to the sleeve, and is used to cover the portion of the monitoring component located outside the sleeve.

[0010] The cable connection element for the power system of the embodiment of the present invention monitors the energization of the conductive rod in real time through the monitoring element, so as to timely reflect the state of the connection, and facilitate rapid and accurate discovery and handling of abnormal conditions. Through real-time monitoring, unnecessary regular inspections and manual inspections can be avoided, reducing operation and maintenance costs.

[0011] In some embodiments, the mounting portion includes a mounting seat and a connecting ball. The mounting seat is annular and connected to the sleeve. The central axis of the mounting seat is coaxially arranged with the central axis of the sleeve. An arc groove is provided on the inner circumferential wall of the mounting seat. Part of the connecting ball is arranged in the mounting seat and fits in the arc groove. A mounting through hole is provided on the connecting ball, and the mounting through hole is connected to the central through hole of the sleeve.

[0012] In some embodiments, the central axis of the conductive rod is coaxially arranged with the central axis of the sleeve, the conductive rod is rotatable around its axis, the guide groove is arc-shaped, and the probe of the monitoring device is spherical, so that the probe of the monitoring device can slide in the guide groove.

[0013] In some embodiments, the mounting portion further includes a transition ring, the mounting seat is detachably connected to the sleeve via the transition ring, and a cross-sectional area of ​​the transition ring gradually increases along the mounting seat toward the sleeve.

[0014] In some embodiments, the center point of the connecting ball is located on the central axis of the mounting through hole.

[0015] In some embodiments, a sealing ring is provided in the mounting through hole.

[0016] In some embodiments, the mounting portion further includes a limit spring, one end of the limit spring is connected to the inner circumferential wall of the transition ring, and the other end of the limit spring is connected to the connecting ball.

[0017] In some embodiments, there are a plurality of limit springs, and the plurality of limit springs are distributed at intervals around the circumference of the connecting ball.

[0018] In some embodiments, the limit spring is arranged obliquely, and the angle between the extension direction of the limit spring and the axial direction of the sleeve is 60° to 80°.

[0019] In some embodiments, a wire hole is provided at the end of the conductive rod, so that the portion of the cable located in the sleeve can be tied to the conductive rod through the wire hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of a cable connection element for a power system according to an embodiment of the present invention.

[0021] Reference numerals:

[0022] 100-cable,

[0023] 1-sleeve, 2-mounting part, 21-mounting seat, 22-connecting ball, 23-transition ring, 24-limit spring, 3-conductive rod, 31-guide groove, 4-monitoring part, 5-housing. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0025] The following describes a cable connection element for a power system according to an embodiment of the present invention with reference to the accompanying drawings.

[0026] like Figure 1 As shown, the cable connection element for a power system according to an embodiment of the present invention comprises: a sleeve 1 , a monitoring component 4 and a shell 5 .

[0027] The sleeve 1 has mounting parts 2 at both ends along its length, and the mounting parts 2 are used to fix the cable 100. A conductive rod 3 (for transmitting power) is provided in the sleeve 1, and the portion of the cable 100 located in the sleeve 1 is connected to the conductive rod 3, so that the cables 100 of the power system are connected through the conductive rod 3.

[0028] A guide groove 31 is provided on the peripheral wall of the conductive rod 3, and the monitoring component 4 is provided on the sleeve 1. The probe of the monitoring component 4 passes through the peripheral wall of the sleeve 1 and is placed in the guide groove 31, so that the probe of the monitoring component 4 contacts the conductive rod 3, thereby monitoring the current transmission of the conductive rod 3, and transmitting the monitoring data to the control module of the power system for real-time observation by the staff.

[0029] Therefore, the cable connection element for the power system of the embodiment of the present invention, the monitoring component 4 can collect the operating data of the connection of the cable 100 in real time, and timely reflect the status of the connection, so as to facilitate the rapid discovery and handling of potential faults, implement preventive maintenance strategies, that is, perform maintenance before the fault occurs, avoid large-scale power outages or equipment damage caused by sudden faults, and improve the overall reliability and stability of the power system. Moreover, the data collected by the monitoring component 4 can be used for long-term accumulation and analysis, which is helpful to discover potential problems and development trends at the connection of the cable 100, and provide a basis for improving design and optimizing operation and maintenance.

[0030] In addition, through real-time monitoring, unnecessary regular inspections and manual testing can be avoided, reducing operation and maintenance costs. In emergency situations, it can provide rapid response to help operation and maintenance personnel quickly locate the fault point, shorten the fault handling time, and improve maintenance efficiency.

[0031] In addition, the shell 5 is connected to the sleeve 1. The shell 5 is used to cover the part of the monitoring component 4 located outside the sleeve 1, effectively isolating the monitoring component 4 from the external environment, preventing environmental factors such as moisture, dust, grease, and chemicals from damaging the monitoring component 4, and improving the service life of the equipment.

[0032] In some embodiments, Figure 1 As shown, the mounting portion 2 includes a mounting seat 21 and a connecting ball 22 .

[0033] The mounting seat 21 is annular, connected to the sleeve 1, and the central axis of the mounting seat 21 is coaxially arranged with the central axis of the sleeve 1. An arc groove is arranged on the inner peripheral wall of the mounting seat 21, and the connecting ball 22 is arranged in the mounting seat 21 and fits in the arc groove. The connecting ball 22 is provided with a mounting through hole, which is connected to the central through hole of the sleeve 1.

[0034] It can be understood that the cable 100 passes through the installation through hole and is placed in the sleeve 1. The cable 100 is fixedly connected to the connecting ball 22. Through the cooperation between the connecting ball 22 and the mounting seat 21, the cable 100 is movable.

[0035] Since the cable 100 is exposed to wind and rain for a long time, the vibration of the cable 100 may cause the mechanical structure of the connection to be weakened. If the connection is a rigid connection, it is very easy to cause damage to the portion of the cable 100 located in the installation through hole.

[0036] Therefore, the cable connecting element for the power system of the embodiment of the present invention fixes the cable 100 through the three-dimensionally rotating connecting ball 22 to make the cable 100 movable, reduce the impact of the vibration caused by external factors (strong wind, rain) on the connection of the cable 100, reduce the stress concentration at the connection, thereby reducing the failure rate and improving the stability and safety of the cable 100 line.

[0037] Furthermore, a sealing ring (not shown in the figure) is provided in the installation through hole to ensure the sealing between the cable 100 and the connecting ball 22 and prevent external factors (sand, water, etc.) from entering the interior of the sleeve 1 and causing safety accidents.

[0038] In some embodiments, Figure 1 As shown, the central axis of the conductive rod 3 is coaxially arranged with the central axis of the sleeve 1, and the conductive rod 3 is rotatable around its axis, further improving the feasibility of the cable 100 movement, so that the cable connection element for the power system of the embodiment of the present invention has higher flexibility.

[0039] Furthermore, the guide groove 31 is arc-shaped, and the probe of the monitoring component 4 is spherical, so that the probe of the monitoring component 4 can slide in the guide groove 31 , thereby ensuring the effectiveness of the real-time monitoring of the monitoring component 4 .

[0040] In some embodiments, Figure 1 As shown, the mounting portion 2 further includes a transition ring 23 , and the mounting seat 21 is detachably connected to the sleeve 1 via the transition ring 23 , and the cross-sectional area of ​​the transition ring 23 gradually increases along the mounting seat 21 toward the sleeve 1 .

[0041] It can be understood that the smooth transition design helps to reduce stress concentration caused by sudden changes in cross-section, thereby reducing the risk of fatigue damage to the mounting seat 21 and the sleeve 1 due to stress concentration.

[0042] Although the cross-sectional area of ​​the mounting base 21 is small, the smooth transition design can improve the overall strength of the entire structure, make the connection more secure, make it more uniform when bearing loads, reduce potential damage caused by uneven loads, and improve the overall aesthetics of the product appearance.

[0043] Furthermore, the reduction in the cross-sectional area of ​​the mounting seat 21 helps to reduce the weight of the overall structure, utilize materials more efficiently, reduce material waste, and lower costs.

[0044] Optionally, corresponding ear plates are provided on the outer circumferential wall of the transition ring 23 and the outer circumferential wall of the sleeve 1, and the two are detachably connected by bolt connection. Thus, according to the cables 100 of different sizes, the mounting seat 21 and the connecting ball 22 of corresponding sizes can be replaced to improve the adaptability of the device.

[0045] Furthermore, a sealing gasket is also provided at the joint between the transition ring 23 and the sleeve 1 to ensure the sealing performance of the device.

[0046] In some embodiments, Figure 1 As shown, the center point of the connecting ball 22 is located on the central axis of the mounting through hole.

[0047] It is understandable that this design makes the entire structure more stable mechanically, reduces vibration and stress concentration caused by eccentricity, and thus improves overall stability and reliability. The connecting ball 22 can move more smoothly, reduces friction, helps to improve the bearing capacity of the mounting seat 21, and prolongs the service life of the connecting ball 22 and the mounting seat 21.

[0048] In addition, the dynamic balance is optimized, the vibration and noise caused by imbalance are reduced, the wear caused by eccentric movement is reduced, the durability and safety of the device are improved, and the risk of failure is reduced.

[0049] In some embodiments, Figure 1 As shown, the mounting portion 2 further includes a limit spring 24, one end of which is connected to the inner circumferential wall of the transition ring 23, and the other end of which is connected to the connecting ball 22. Alternatively, the mounting portion 2 further includes a torsion spring, which is disposed in the mounting seat 21 and connected to the connecting ball 22.

[0050] It is understandable that the elastic component is added to the connecting ball 22 to limit the rotation range of the connecting ball 22 by providing resistance, thereby preventing it from over-rotating, thereby protecting the connecting ball 22 and the cable 100 from damage.

[0051] Furthermore, the resistance of the limit spring 24 provides a certain damping effect for the connecting ball 22, which helps to reduce excessive swinging due to rapid movement or impact, and improves overall durability and safety.

[0052] Furthermore, there are multiple limit springs 24, which are distributed at intervals around the connecting ball 22 in the circumferential direction, ensuring that the connecting ball 22 will not rotate when the cable 100 is not subjected to external force, and the cable 100 is always in a horizontal state, thereby improving the reliability of the device.

[0053] In some embodiments, Figure 1 As shown, the limit spring 24 is tilted, and the tilted spring can provide more uniform resistance during the rotation of the connecting ball 22. In addition, by adjusting the tilt angle of the limit spring 24, the resistance of the limit spring 24 to the rotation of the connecting ball 22 can be changed.

[0054] Preferably, the angle between the extension direction of the limit spring 24 and the axial direction of the sleeve 1 is 60° to 80°.

[0055] It is understandable that within the range of 60° to 80°, the inclination angle of the limit spring 24 helps to achieve a dynamic balance between the spring force and the damping effect, making the movement of the connecting ball 22 more stable. In addition, the contact force between the limit spring 24 and the surface of the connecting ball 22 can generate a larger vertical component, which is conducive to providing sufficient support force and stability.

[0056] In addition, limited by the shape of the sleeve 1, the limit spring 24 is tilted and arranged within a preset range, so that the internal structure of the sleeve 1 is more compact, the spatial layout is optimized, and it is adapted to limited space conditions.

[0057] In some embodiments, Figure 1 As shown, a wire hole is provided at the end of the conductive rod 3 so that the portion of the cable 100 located in the sleeve 1 can be tied to the conductive rod 3 through the wire hole.

[0058] It is understandable that the cable 100 is connected to the conductive rod 3 by binding, allowing the cable 100 to move freely within a certain range, thereby further adapting to the technical feature of the three-dimensional rotation of the cable 100 in the embodiment of the present invention.

[0059] In some embodiments, Figure 1As shown, the sleeve 1 includes a transmission section and a connection section, and the connection section has two sections, which are arranged oppositely on both sides of the transmission section. The cross-sectional area of ​​the connection section is larger than the cross-sectional area of ​​the transmission section, and the conductive rod 3 passes through the connection section along the axial direction of the sleeve 1, so that the end of the conductive rod 3 is located in the connection section.

[0060] Therefore, the size of the connecting section is determined according to the size of the cable 100 to ensure that the cable 100 has enough space for movement in the connecting section so that the cable 100 can extend into the sleeve 1 as much as possible, so that the cable 100 will not reach the pulling limit during movement.

[0061] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In 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.

[0065] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean 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 present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics 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.

[0066] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A cable connection element for a power system, characterized in that: include: A sleeve, wherein both ends of the sleeve are respectively provided with mounting parts, the mounting parts are used to fix the cable, a conductive rod is arranged in the sleeve, a portion of the cable located in the sleeve is connected to the conductive rod, and a guide groove is arranged on the peripheral wall of the conductive rod; A monitoring member, wherein the monitoring member is arranged on the sleeve, and a probe of the monitoring member passes through the peripheral wall of the sleeve and is placed in the guide groove so that the probe of the monitoring member contacts the conductive rod; A shell is connected to the sleeve, and is used to cover the portion of the monitoring component located outside the sleeve.

2. The cable connection element for a power system according to claim 1, characterized in that: The mounting portion includes a mounting seat and a connecting ball. The mounting seat is annular and connected to the sleeve. The central axis of the mounting seat is coaxially arranged with the central axis of the sleeve. An arc groove is provided on the inner circumferential wall of the mounting seat. Part of the connecting ball is arranged in the mounting seat and fits in the arc groove. A mounting through hole is provided on the connecting ball, and the mounting through hole is connected to the central through hole of the sleeve.

3. The cable connection element for a power system according to claim 2, characterized in that: The central axis of the conductive rod is coaxially arranged with the central axis of the sleeve, the conductive rod is rotatable around its axis, the guide groove is arc-shaped, and the probe of the monitoring component is spherical, so that the probe of the monitoring component can slide in the guide groove.

4. The cable connection element for a power system according to claim 2, characterized in that: The mounting portion further comprises a transition ring, through which the mounting seat is detachably connected to the sleeve, and a cross-sectional area of ​​the transition ring gradually increases along the mounting seat in a direction approaching the sleeve.

5. The cable connection element for a power system according to claim 2, characterized in that: The center point of the connecting ball is located on the central axis of the mounting through hole.

6. The cable connection element for a power system according to claim 2, characterized in that: A sealing ring is arranged in the installation through hole.

7. The cable connection element for an electric power system according to claim 4, characterized in that: The mounting portion further comprises a limit spring, one end of which is connected to the inner circumferential wall of the transition ring, and the other end of which is connected to the connecting ball.

8. The cable connection element for an electric power system according to claim 7, characterized in that: There are a plurality of limit springs, and the limit springs are distributed at intervals around the circumference of the connecting ball.

9. The cable connection element for an electric power system according to claim 8, characterized in that: The limit spring is arranged obliquely, and the angle between the extension direction of the limit spring and the axial direction of the sleeve is 60° to 80°.

10. The cable connection element for a power system according to any one of claims 1 to 9, characterized in that: The end of the conductive rod is provided with a wire hole, so that the part of the cable located in the sleeve can be tied to the conductive rod through the wire hole.

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