Pluggable cable connector for EVT lower connection

Abstract

An EVT underneath-connected pluggable cable connector comprises a cable connector, an arc extinguishing device connected to the cable connector and a voltage sensing device detachably connected to the bottom of the cable connector, an adjustable operation device is arranged on the outer side wall of the cable connector, and the operation device comprises a fixing mechanism and an adjusting mechanism. An operation belt is connected between the fixing mechanism and the adjusting mechanism, a voltage testing device is further arranged on the outer side wall of the cable connector, and a shielding cap is arranged outside the voltage testing device in a sleeving mode. And the voltage sensing device comprises a shell, a shielding mechanism connected to the interior of the shell and a voltage sensing mechanism connected to the shielding mechanism, so that the plug-in cable connector can be connected with the EVT in a downward connection manner, the use convenience is effectively improved, and the development requirements of digitization and intellectualization of current power grid equipment are met.

Description

Technical Field

[0001] This application relates to the technical field of voltage transformers, and in particular to a pluggable cable connector connected to an EVT. Background Technology

[0002] Cable connectors are mainly used for signal transmission between various digital program-controlled exchanges, optoelectronic transmission equipment and patch panels in transmission equipment bureaus. They are used to transmit data, audio, video and other communication equipment. EVT (voltage sensor) is a high-voltage measurement and protection sensing device, usually installed in the network cabinet. It mainly provides the voltage signal of the power grid to the measuring device, relay protection device and power automation system.

[0003] In existing technologies, the bottom of pluggable cable connectors in power automation systems typically only has through holes for connecting cables, thus preventing the direct installation of EVTs and the provision of grid voltage signals to the power automation system. This does not meet the needs of the digital and intelligent development of power grid equipment and is inconvenient to use. Utility Model Content

[0004] This utility model provides a pluggable cable connector for connecting to an EVT, enabling the pluggable cable connector to be connected to the EVT via a bottom connection, effectively improving ease of use and meeting the development needs of digitalization and intelligence in today's power grid equipment.

[0005] To achieve the aforementioned objectives, this application adopts the following technical solution:

[0006] A pluggable cable connector for EVT, characterized in that it includes:

[0007] A cable connector, wherein an adjustable operating device is provided on the outer side wall of the cable connector, the operating device including a fixing mechanism and an adjusting mechanism, an operating strap is connected between the fixing mechanism and the adjusting mechanism, and a voltage testing device is also provided on the outer side wall of the cable connector, the voltage testing device being covered with a shielding cap.

[0008] An arc-extinguishing device connected to the cable connector;

[0009] A voltage sensing device detachably connected to the bottom of the cable connector, the voltage sensing device including a housing, a shielding mechanism connected inside the housing, and a voltage sensing mechanism connected to the shielding mechanism.

[0010] In some alternative embodiments, one end of the operating belt is connected to the fixing mechanism, and the other end of the operating belt is connected to the adjusting mechanism.

[0011] In some alternative embodiments, the adjustment mechanism includes a base and an adjustment assembly slidably connected to the base, with baffles provided at opposite ends of the base.

[0012] In some alternative embodiments, the top of the adjustment assembly is provided with a mounting groove and a removable positioning piece, one end of the operating belt is disposed inside the mounting groove, and the positioning piece presses against the end of the operating belt.

[0013] In some alternative embodiments, the bottom of the mounting groove is provided with a threaded fixing hole, and the positioning piece is provided with a fixing through hole, the threaded fixing hole corresponding to the fixing through hole.

[0014] In some alternative embodiments, the cable connector comprises, from the inside out, an inner shielding layer, an insulation layer, and an outer shielding layer.

[0015] In some alternative embodiments, the arc-extinguishing device includes a conductive rod, an arc-extinguishing head connected to the conductive rod, and an insert embedded inside the conductive rod and the arc-extinguishing head. A limiting tube is provided between the inner shielding layers of the cable connector near one end of the arc-extinguishing device, and the limiting tube cooperates with the conductive rod in the arc-extinguishing device.

[0016] In some alternative embodiments, the voltage sensing device is interference-fitted with the bottom of the cable connector.

[0017] In some alternative embodiments, the housing includes a primary housing, a secondary housing, and a bottom cover. The primary housing is connected to the secondary housing. The top of the primary housing has a through hole, and the inner sidewall of the primary housing has an internal thread. The bottom cover is connected to the secondary housing. The shielding mechanism includes an upper shielding component and a lower shielding component. The upper shielding component is connected to the lower shielding component. The inner sidewall of the upper shielding component has an internal thread, and the outer sidewall of the upper shielding component has an external thread. The external thread on the outer sidewall of the upper shielding component engages with the internal thread on the inner sidewall of the primary housing.

[0018] In some alternative embodiments, the rod of the voltage sensing mechanism passes through the through hole of the primary housing and is provided with an external thread, which engages with the internal thread of the inner sidewall of the upper shielding assembly.

[0019] The pluggable cable connector connected to the EVT provided in this application has the following advantages:

[0020] In the technical solution adopted in this application, an adjustable operating device is provided on the outer wall of the cable connector. An operating band is connected between the fixing mechanism and the adjusting mechanism in the operating device. A voltage testing device is also provided on the outer wall of the cable connector. A shielding cap is fitted over the voltage testing device. An arc extinguishing device is connected to the cable connector. A voltage sensing device is detachably connected to the bottom of the cable connector. A shielding mechanism is connected inside the housing of the voltage sensing device. A voltage sensing mechanism is connected inside the shielding mechanism. This enables the plug-in cable connector to be connected to the EVT in a bottom-connection manner, effectively improving the convenience of use and meeting the development needs of digitalization and intelligence of today's power grid equipment. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a cross-sectional structural diagram of a pluggable cable connector connected to an EVT according to this application;

[0023] Figure 2 This is a cross-sectional structural diagram of the cable connector in a pluggable cable connector connected to an EVT according to this application;

[0024] Figure 3 This is a perspective view of the operating device in a pluggable cable connector connected to an EVT according to this application;

[0025] Figure 4 This is a perspective view of the operating device in a pluggable cable connector connected to an EVT according to this application.

[0026] Figure 5 This is an exploded schematic diagram of the housing in a pluggable cable connector connected to an EVT according to this application;

[0027] Figure 6 This is a perspective view of the housing of a pluggable cable connector connected to an EVT according to this application;

[0028] Figure 7 This is a perspective view of the shielding mechanism in a pluggable cable connector connected to an EVT according to this application;

[0029] Figure 8 This is a perspective view of the voltage sensing mechanism in a pluggable cable connector connected to an EVT according to this application;

[0030] Figure 9 This is a schematic diagram illustrating a usage scenario of a pluggable cable connector connected to an EVT according to this application.

[0031] Figure label:

[0032] 10. Cable connector; 11. Operating device; 111. Fixing mechanism; 112. Adjusting mechanism; 1121. Base; 1122. Adjusting assembly; 1122A. Mounting slot; 1122B. Positioning plate; 1123. Baffle plate; 113. Operating band; 12. Voltage testing device; 121. Shielding cap; 13. Inner shielding layer; 14. Insulation layer; 15. Outer shielding layer; 16. Limiting tube;

[0033] 20. Arc extinguishing device; 21. Conductive rod; 22. Arc extinguishing head; 23. Insert;

[0034] 30. Voltage sensing device; 31. Housing; 311. Primary housing; 311A. Through hole; 312. Secondary housing; 313. Bottom cover; 32. Shielding mechanism; 321. Upper shielding assembly; 322. Lower shielding assembly; 33. Voltage sensing mechanism; 331. Rod;

[0035] 40. Inlet sleeve. Detailed Implementation

[0036] The specific embodiments of this application are described below with reference to the accompanying drawings and examples. Through the content described in this specification, those skilled in the art can clearly and completely understand the technical solution, the technical problem solved, and the resulting technical effects of this application. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, for ease of description, only the parts related to this application are shown in the accompanying drawings.

[0037] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the contents described in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size should fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0038] The use of terms such as "first," "second," and "the" does not imply quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or units, but may also include steps or units not listed, or other steps or units inherent to such processes, methods, products, or devices. The terms "connected," "linked," and "coupled" used in this application are not limited to physical or mechanical connections, but may also include direct or indirect electrical connections.

[0039] It should also be noted that the longitudinal section corresponding to the embodiment of this application can be the section corresponding to the front view direction, the transverse section can be the section corresponding to the right view direction, and the horizontal section can be the section corresponding to the top view direction.

[0040] Furthermore, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] A pluggable cable connector connected to an EVT includes a cable connector 10, an arc extinguishing device 20 connected to the cable connector 10, and a voltage sensing device 30 detachably connected to the bottom of the cable connector 10.

[0042] An adjustable operating device 11 is provided on the outer wall of the cable connector 10. The operating device 11 includes a fixing mechanism 111 and an adjusting mechanism 112. An operating band 113 is connected between the fixing mechanism 111 and the adjusting mechanism 112. Specifically, one end of the operating band 113 is connected to the fixing mechanism 111, and the other end is connected to the adjusting mechanism 112. The adjusting mechanism 112 includes a base 1121 and an adjusting component 1122 slidably connected to the base 1121. Baffles 1123 are provided on both opposite ends of the base 1121 to prevent the adjusting component 1122 from falling off the base 1121 during sliding. Here, the cooperation between the fixing mechanism 111, the adjusting mechanism 112, and the operating band 113 allows for the adaptation to insulating rods of different diameters or specifications. The cable connector 10 is inserted or removed by the cooperation of the operating device 11 with the insulating rod, thereby realizing the switching of the cable connector 10 with the power supply.

[0043] The top of the adjusting assembly 1122 is provided with a mounting groove 1122A and a detachable positioning piece 1122B. One end of the operating band 113 is located inside the mounting groove 1122A and is pressed against the end by the positioning piece 1122B. Furthermore, the bottom of the mounting groove 1122A is provided with a threaded fixing hole, and the positioning piece 1122B is provided with a fixing through hole. The threaded fixing hole and the fixing through hole correspond to each other. After one end of the operating band 113 is placed inside the mounting groove 1122A, the positioning piece 1122B presses against the end of the operating band 113. Then, the self-tapping screws are engaged with the threaded fixing hole and the fixing through hole respectively, and pierce through the operating band 113 to realize the connection between the adjusting mechanism 112 and the end of the operating band 113.

[0044] A voltage testing device 12 is also provided on the outer wall of the cable connector 10. A shielding cap 121 is fitted over the voltage testing device 12 to enable voltage testing of the cable connector 10 under normal operating conditions. When voltage testing is not performed, the shielding cap 121 provides full shielding of the cable connector 10. It should be noted that the voltage testing device 12 is made of conductive nylon, which has excellent conductivity, allowing voltage testing to be performed while the equipment is running. Here, the cable connector 10 is manufactured using a three-layer injection molding process combining injection molding and mold injection, effectively reducing interlayer gaps and minimizing the probability of partial discharge.

[0045] The cable connector 10 consists of an inner shielding layer 13, an insulation layer 14, and an outer shielding layer 15 from the inside out. A limiting tube 16 is provided between the inner shielding layers 13 near the arc extinguishing device 20. The limiting tube 16 cooperates with the arc extinguishing device 20 to achieve correct positioning and installation of the arc extinguishing device 20 and prevent misalignment. It should be noted that the inner shielding layer 13 is made of soft silicone insulating material, and the limiting tube 16 is made of aluminum.

[0046] The arc-extinguishing device 20 includes a conductive rod 21, an arc-extinguishing head 22 connected to the conductive rod 21, and an insert 23 embedded inside the conductive rod 21 and the arc-extinguishing head 22. The conductive rod 21, the arc-extinguishing head 22, and the insert 23 are riveted together. It should be noted that the conductive rod 21 is made of T2 copper, and the arc-extinguishing head 22 is made of POM plastic (polyoxymethylene resin), which has a good arc-extinguishing effect. Here, the arc-extinguishing device 20 is set up to enable the installation or removal of the cable connector 10 under load.

[0047] The voltage sensing device 30 is connected to the bottom of the cable connector 10 for measuring high voltage, thereby providing the power grid voltage signal value to the power automation system. The voltage sensing device 30 includes a housing 31, a shielding mechanism 32 connected inside the housing 31, and a voltage sensing mechanism 33 connected to the shielding mechanism 32. The housing 31 includes a primary housing 311, a secondary housing 312, and a bottom cover 313. The primary housing 311 and the secondary housing 312 are connected. The top of the primary housing 311 has a through hole 311A, and the inner sidewall of the primary housing 311 has an internal thread. The bottom cover 313 is connected to the secondary housing 312. Here, the connection method between the voltage sensing device 30 and the cable connector 10 can be a plug-in type or a snap-fit ​​type, as long as it allows for easy assembly and disassembly of the voltage sensing device 30.

[0048] The shielding mechanism 32 includes an upper shielding component 321 and a lower shielding component 322, which are connected. The upper shielding component 321 has an internal thread on its inner wall and an external thread on its outer wall. The external thread on the outer wall of the upper shielding component 321 engages with the internal thread on the inner wall of the primary housing 311 to achieve the connection between the housing 31 and the shielding mechanism 32. Here, the shielding mechanism 32 is made of metal. The shielding mechanism 32 is designed to protect the voltage sensing mechanism 33 from damage or breakdown caused by external strong magnetic fields or strong currents. Furthermore, when the shielding mechanism 32 needs to be replaced, it can be rotated to separate it from both the housing 31 and the voltage sensing mechanism 33, thus removing the shielding mechanism 32 before installing the new one, effectively improving operational convenience.

[0049] The rod 331 of the voltage sensing mechanism 33 passes through the through hole 311A ​​of the primary housing 311, and its top is connected to the conductive rod 21 in the arc extinguishing device 20 to energize the voltage sensing mechanism 33, thereby meeting the conditions for voltage testing. Furthermore, the voltage sensing mechanism 33 is provided with an external thread, which mates with the internal thread on the inner wall of the upper shielding assembly 321 to achieve the connection between the voltage sensing mechanism 33 and the shielding assembly 32. Here, the threaded connection between the voltage sensing mechanism 33 and the shielding assembly 32 facilitates the disassembly and assembly of the voltage sensing mechanism 33. This allows for easy removal of the old voltage sensing mechanism 33 and installation of the new one when replacement is needed.

[0050] Here, an adjustable operating device 11 is provided on the outer wall of the cable connector 10. An operating band 113 is connected between the fixing mechanism 111 and the adjusting mechanism 112 in the operating device 11. A voltage testing device 12 is also provided on the outer wall of the cable connector 10. A shielding cap 121 is fitted on the outside of the voltage testing device 12. An arc extinguishing device 20 is connected to the cable connector 10. A voltage sensing device 30 is detachably connected to the bottom of the cable connector 10. A shielding mechanism 32 is connected inside the housing 31 of the voltage sensing device 30. A voltage sensing mechanism 33 is connected inside the shielding mechanism 32. This enables the plug-in cable connector 10 to be connected to the EVT in a bottom-connection manner, which effectively improves the convenience of use and meets the development needs of digitalization and intelligence of today's power grid equipment.

[0051] To facilitate understanding, the working principle of this application is further described as follows: The pluggable cable connector 10 connected to the EVT extends through the arc extinguishing device 20 and is directly inserted into or pulled out of the corresponding inlet sleeve 40, thereby completing the circuit switching. When the EVT (voltage sensor) is connected to the bottom of the cable connector 10, the top of the rod 331 of the voltage sensing mechanism 33 abuts against the conductive rod 21 in the arc extinguishing device 20, forming a circuit. Then, the arc extinguishing device 20 is connected to the corresponding inlet sleeve 40, realizing the energization of the voltage sensor, thereby allowing the voltage of the connected circuit to be measured. In addition, the voltage signal value obtained by the voltage sensor is connected to an external power automation system to provide voltage signal values ​​for its power automation system, effectively improving the convenience of use.

[0052] Although this application has been described and illustrated with reference to specific embodiments thereof, such description and illustration are not limiting of this application. It will be readily understood by those skilled in the art that various changes can be made and equivalent elements can be substituted within embodiments without departing from the true spirit and scope of this application as defined by the appended claims. Illustrations may not be drawn to scale. Differences may exist between the technical representation in this application and actual implementation due to variables in the manufacturing process, etc. Other embodiments of this application may exist that are not specifically described. The description and illustrations should be considered illustrative rather than restrictive. Modifications can be made to adapt particular circumstances, materials, composition, methods, or processes to the objectives, spirit, and scope of this application. All such modifications fall within the scope of the appended claims. While the methods disclosed herein have been described with reference to specific operations performed in a particular order, it should be understood that these operations can be combined, subdivided, or reordered to form equivalent methods without departing from the teachings of this application. Therefore, unless specifically indicated herein, the order and grouping of operations do not limit this application.

Claims

1. A pluggable cable connector connected to an EVT, characterized in that, include A cable connector (10) is provided with an adjustable operating device (11) on its outer side wall. The operating device (11) includes a fixing mechanism (111) and an adjusting mechanism (112). An operating band (113) is connected between the fixing mechanism (111) and the adjusting mechanism (112). A voltage testing device (12) is also provided on the outer side wall of the cable connector (10). A shielding cap (121) is fitted over the voltage testing device (12). Arc extinguishing device (20) connected to the cable connector (10); A voltage sensing device (30) is detachably connected to the bottom of the cable connector (10). The voltage sensing device (30) includes a housing (31), a shielding mechanism (32) connected inside the housing (31), and a voltage sensing mechanism (33) connected to the shielding mechanism (32).

2. The pluggable cable connector connected to the EVT according to claim 1, characterized in that, One end of the operating belt (113) is connected to the fixing mechanism (111), and the other end of the operating belt (113) is connected to the adjusting mechanism (112).

3. The pluggable cable connector connected to the EVT according to claim 2, characterized in that, The adjustment mechanism (112) includes a base (1121) and an adjustment component (1122) slidably connected to the base (1121). Baffles (1123) are provided on both opposite ends of the base (1121).

4. The pluggable cable connector connected to the EVT according to claim 3, characterized in that, The top of the adjustment component (1122) is provided with a mounting groove (1122A) and a detachable positioning piece (1122B). One end of the operating band (113) is located inside the mounting groove (1122A), and the end of the operating band (113) is pressed by the positioning piece (1122B).

5. The pluggable cable connector (10) connected to the EVT according to claim 4, characterized in that, The bottom of the mounting groove (1122A) is provided with a threaded fixing hole, and the positioning piece (1122B) is provided with a fixing through hole, the threaded fixing hole and the fixing through hole being opposite to each other.

6. The pluggable cable connector connected to the EVT according to claim 1, characterized in that, The cable connector (10) consists of an inner shielding layer (13), an insulation layer (14), and an outer shielding layer (15) from the inside out.

7. The pluggable cable connector connected to the EVT according to claim 6, characterized in that, The arc extinguishing device (20) includes a conductive rod (21), an arc extinguishing head (22) connected to the conductive rod (21), and an insert (23) embedded in the conductive rod (21) and the arc extinguishing head (22). The cable connector (10) is provided with a limiting tube (16) between the inner shielding layer (13) near one end of the arc extinguishing device (20). The limiting tube (16) cooperates with the conductive rod (21) in the arc extinguishing device (20).

8. The pluggable cable connector connected to the EVT according to claim 6 or 7, characterized in that, The voltage sensing device (30) and the bottom of the cable connector (10) are interference-fitted.

9. The pluggable cable connector connected to the EVT according to claim 1, characterized in that, The housing (31) includes a primary housing (311), a secondary housing (312), and a bottom cover (313). The primary housing (311) is connected to the secondary housing (312). The top of the primary housing (311) is provided with a through hole (311A), and the inner sidewall of the primary housing (311) is provided with an internal thread. The bottom cover (313) is connected to the secondary housing (312). The shielding mechanism (32) includes an upper shielding component (321) and a lower shielding component (322). The upper shielding component (321) is connected to the lower shielding component (322). The inner sidewall of the upper shielding component (321) is provided with an internal thread, and the outer sidewall of the upper shielding component (321) is provided with an external thread. The external thread of the outer sidewall of the upper shielding component (321) is engaged with the internal thread on the inner sidewall of the primary housing (311).

10. The pluggable cable connector connected to the EVT according to claim 9, characterized in that, The rod (331) of the voltage sensing mechanism (33) passes through the through hole (311A) of the primary housing (311) and is provided with an external thread. The external thread of the voltage sensing mechanism (33) is engaged with the internal thread of the inner sidewall of the upper shielding assembly (321).

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