High-frequency current partial discharge sensor

Abstract

This invention proposes a high-frequency current partial discharge sensor, comprising an annular detection section, a first clamping section, and a second clamping section. The annular detection section includes a first arc-shaped detection section and a second arc-shaped detection section. The first clamping section is disposed on the first arc-shaped detection section, and the second clamping section is disposed on the second arc-shaped detection section. The first clamping section includes a first clamping plate with a first groove. The second clamping section includes a second clamping plate with a second groove. The first and second clamping plates are detachably connected. The first clamping section further includes a first clamping rod that passes through the first clamping plate and extends into the first groove, and the first clamping rod is slidable relative to the first clamping plate. The second clamping section further includes a second clamping rod that passes through the second clamping plate and extends into the second groove, and the second clamping rod is slidable relative to the first clamping plate. The high-frequency current partial discharge sensor of this invention is easy to disassemble and install.

Description

Technical Field

[0001] This invention belongs to the field of sensor technology, and specifically relates to a high-frequency current partial discharge sensor. Background Technology

[0002] The partial discharge detection sensor for high-voltage cable terminations (also known as a high-frequency current partial discharge sensor) is a core component for online monitoring of partial discharge in power equipment. It mainly consists of a ring-shaped magnetic core, an induction coil, a metal shielding housing, and a signal output interface. To ensure stable installation and effective signal coupling, this type of sensor typically uses a bolted mechanical fixing structure. During installation, the sensor must be fitted around the high-voltage cable termination, with the cable passing through the sensor's central circular hole. Inside the sensor are four symmetrically arranged white insulators, which can be radially adjusted using bolts to maintain a stable electrical insulation distance between the sensor's inner metal wall and the cable, preventing short circuits and ensuring reliable partial discharge signal coupling. After the sensor is closed, tighten the outer fixing bolts to secure the insulators against the cable termination, and then connect the signal transmission line to complete the installation.

[0003] The above structure has obvious shortcomings in actual use: the installation and removal of the sensor requires the use of bolts to close and lock the housing and adjust the position of the insulator. Multiple bolts need to be turned multiple times to get them in place, which is cumbersome, time-consuming and labor-intensive.

[0004] Therefore, high-frequency current partial discharge sensors in related technologies have the problem of being difficult to install and disassemble. Summary of the Invention

[0005] The present invention aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, embodiments of the present invention propose a high-frequency current partial discharge sensor.

[0007] The high-frequency current partial discharge sensor of this invention includes an annular detection part, a first clamping part, and a second clamping part. The annular detection part includes a first arc-shaped detection part and a second arc-shaped detection part. The first arc-shaped detection part and the second arc-shaped detection part are connected to define a detection hole. The first clamping part is disposed on the first arc-shaped detection part, and the second clamping part is disposed on the second arc-shaped detection part.

[0008] The first clamping part includes a first clamping plate, and the first clamping plate is provided with a first groove; The second clamping part includes a second clamping plate, the second clamping plate is provided with a second groove, the first clamping plate and the second clamping plate are detachably connected, and the first groove and the second groove define a through hole; The first clamping part further includes a first clamping rod, which extends through the first clamping plate into the first groove, and the first clamping rod is slidable relative to the first clamping plate so that the first clamping rod can move between a first clamping locked position and a first clamping unlocked position; The second clamping part further includes a second clamping rod, which extends through the second clamping plate into the second groove, and the second clamping rod is slidable relative to the first clamping plate so that the second clamping rod can move between a second clamping locked position and a second clamping unlocked position; When the first clamping plate and the second clamping plate are connected, the first clamping rod is in the first clamping unlock position and the second clamping rod is in the second clamping unlock position. When the first clamping plate and the second clamping plate are disengaged, the first clamping rod is in the first clamping locking position and the second clamping rod is in the second clamping locking position.

[0009] It is understandable that when the first clamping rod is in the first clamping locked position and the second clamping rod is in the second clamping locked position, the first and second clamping rods can fix the cable, and the cable also passes through the detection hole of the annular detection unit for detection. When the first clamping rod is in the first clamping unlocked position and the second clamping rod is in the second clamping unlocked position, the first and second clamping rods stop fixing the cable, allowing the cable to be removed.

[0010] Therefore, when it is necessary to test the cable, simply connect the first clamping plate and the second clamping plate and place them on the cable, while using the first clamping rod and the second clamping rod to fix the cable; after the cable test is completed, simply detach the first clamping plate and the second clamping plate to release the fixation of the cable by the first clamping rod and the second clamping rod.

[0011] Therefore, the high-frequency current partial discharge sensor of the present invention has the characteristics of being easy to disassemble and install.

[0012] In some embodiments, the first clamping part further includes a first linkage group, the first linkage group is disposed on the first clamping plate, and the first linkage group has a first driving end and a first driven end; The second clamping part further includes a second linkage group, which is disposed on the second clamping plate and has a second driving end and a second driven end; The first driving end and the second driving end are adapted to abut against each other so that the first driving end can move between a first driving position protruding from the edge of the first clamping plate and a second driving position flush with the edge of the first clamping plate, and the second driving end can move between a third driving position protruding from the edge of the second clamping plate and a fourth driving position flush with the edge of the second clamping plate. The first driven end is connected to the first clamping rod to drive the first clamping rod to move between the first clamping locked position and the first clamping unlocked position; The second driven end is connected to the second clamping rod to drive the second clamping rod to move between the second clamping locked position and the second clamping unlocked position; When the first driving end is in the first driving position, the first clamping rod is in the first clamping unlock position; when the first driving end is in the second driving position, the first clamping rod is in the first clamping lock position. When the second drive end is in the third drive position, the second clamping rod is in the second clamping unlock position; when the second drive end is in the fourth drive position, the second clamping rod is in the second clamping lock position.

[0013] In some embodiments, the first linkage group includes a first driving member, a second driving member, a first transmission member, a first fixing member, a first elastic member, a first rotating shaft, a second fixing member, a second elastic member, and a second rotating shaft, wherein one end of the first driving member and one end of the second driving member are both first driving ends; The second linkage group includes a third driving component, a fourth driving component, a second transmission component, a third fixing component, a third elastic component, a third rotating shaft, a fourth fixing component, a fourth elastic component, and a fourth rotating shaft, wherein one end of the third driving component and one end of the fourth driving component are both second driving ends; One end of the first driving member and one end of the third driving member are adapted to engage in abutting transmission, and one end of the second driving member and one end of the fourth driving member are adapted to engage in abutting transmission, so that one end of the first driving member and one end of the second driving member can move between a first driving position protruding from the edge of the first clamping plate and a second driving position flush with the edge of the first clamping plate, so that one end of the third driving member and one end of the fourth driving member can move between a third driving position protruding from the edge of the second clamping plate and a fourth driving position flush with the edge of the second clamping plate; The first transmission member is provided with a first sliding seat, which is slidably disposed on the first transmission member. The other end of the first driving member is rotatably connected to the first sliding seat. The first driving component is connected to the first clamping plate via the first rotating shaft; The first fixing member is provided on the first clamping plate, one end of the first elastic member is rotatably connected to one end of the first driving member, and the other end of the first elastic member is rotatably connected to the first fixing member; The first transmission member is provided with a second sliding seat, which is slidably disposed on the first transmission member. The other end of the second driving member is connected to the second sliding seat. The second driving component is connected to the first clamping plate via the second rotating shaft; The second fixing member is provided on the second clamping plate, one end of the second elastic member is rotatably connected to one end of the second driving member, and the other end of the second elastic member is rotatably connected to the second fixing member; There are two first clamping rods, namely a first sub-clamping rod and a second sub-clamping rod. The first transmission member is provided with a third sliding seat, which is slidably disposed on the first transmission member, and one end of the first sub-clamping rod is rotatably connected to the third sliding seat; The first transmission member is provided with a fourth sliding seat, which is slidably disposed on the first transmission member, and one end of the second sub-clamping rod is rotatably connected to the fourth sliding seat; The second transmission member is provided with a fifth sliding seat, which is slidably disposed on the second transmission member. The other end of the third driving member is rotatably connected to the fifth sliding seat. The third driving component is connected to the second clamping plate via the third rotating shaft; The third fixing member is disposed on the second clamping plate, one end of the third elastic member is rotatably connected to one end of the third driving member, and the other end of the third elastic member is rotatably connected to the third fixing member; The second transmission member is provided with a sixth sliding seat, which is slidably disposed on the second transmission member. The other end of the fourth driving member is connected to the sixth sliding seat. The fourth driving component is connected to the second clamping plate via the fourth rotating shaft; The fourth fixing member is disposed on the second clamping plate, one end of the fourth elastic member is rotatably connected to one end of the fourth driving member, and the other end of the fourth elastic member is rotatably connected to the fourth fixing member; The second clamping rod consists of two parts, namely a third sub-clamping rod and a fourth sub-clamping rod. The second transmission member is provided with a seventh sliding seat, which is slidably disposed on the second transmission member, and one end of the third sub-clamping rod is rotatably connected to the seventh sliding seat; The second transmission component is provided with an eighth sliding seat, which is slidably disposed on the second transmission component, and one end of the fourth sub-clamping rod is rotatably connected to the eighth sliding seat.

[0014] In some embodiments, the first elastic member includes a first telescopic rod and a first spring, the first spring is sleeved on the first telescopic rod, one end of the first telescopic rod is rotatably connected to one end of the first driving member, and the other end of the first telescopic rod is rotatably connected to the first fixing member; The second elastic element includes a second telescopic rod and a second spring. The second spring is sleeved on the second telescopic rod. One end of the second telescopic rod is rotatably connected to one end of the second driving member, and the other end of the second telescopic rod is rotatably connected to the second fixing member. The third elastic element includes a third telescopic rod and a third spring. The third spring is sleeved on the third telescopic rod. One end of the third telescopic rod is rotatably connected to one end of the third driving member, and the other end of the third telescopic rod is rotatably connected to the third fixing member. The fourth elastic element includes a fourth telescopic rod and a fourth spring. The fourth spring is sleeved on the fourth telescopic rod. One end of the fourth telescopic rod is rotatably connected to one end of the fourth driving member, and the other end of the fourth telescopic rod is rotatably connected to the fourth fixing member.

[0015] In some embodiments, the first clamping plate is provided with a first through hole for the first sub-clamping rod to pass through, the outer periphery of the first sub-clamping rod is provided with a first guide protrusion extending along its axial direction, and the first through hole is provided with a first guide groove that cooperates with the first guide protrusion. The first clamping plate is provided with a second through hole for the second sub-clamping rod to pass through, the outer periphery of the second sub-clamping rod is provided with a second guide protrusion extending along its axial direction, and the second through hole is provided with a second guide groove that cooperates with the second guide protrusion; The second clamping plate is provided with a third through hole for the third sub-clamping rod to pass through, the outer periphery of the third sub-clamping rod is provided with a third guide protrusion extending along its axial direction, and the third through hole is provided with a third guide groove that cooperates with the third guide protrusion. The second clamping plate is provided with a fourth through hole for the fourth sub-clamping rod to pass through, and the outer periphery of the fourth sub-clamping rod is provided with a fourth guide protrusion extending along its axial direction. The fourth through hole is provided with a fourth guide groove that cooperates with the fourth guide protrusion.

[0016] In some embodiments, the first sub-clamping rod is provided with a first through groove, which penetrates the first clamping rod radially. A first slider is slidably disposed in the first through groove. The first slider is provided with a first guide groove. The first guide groove includes a first inclined section and a first straight section arranged sequentially along the direction away from the end of the first sub-clamping rod. The first inclined section and the first straight section are connected. The first sub-clamping rod is provided with a first positioning groove corresponding to the first guide groove. The first guide post is provided in the first perforation, and the first guide post passes through the first positioning groove and the first guide groove; The first clamping part further includes a first pressure plate, one end of which is rotatably connected to the first slider. The first pressure plate is provided with a first limiting strip groove. The first sub-clamping rod is also provided with a first bracket, which has a first limiting shaft that passes through the first limiting strip groove.

[0017] In some embodiments, the second sub-clamping rod is provided with a second through groove, which penetrates the second clamping rod radially. A second slider is slidably disposed in the second through groove. The second slider is provided with a second guide groove. The second guide groove includes a second inclined section and a second straight section arranged sequentially along the direction away from the end of the second sub-clamping rod. The second inclined section and the second straight section are connected. The second sub-clamping rod is provided with a second positioning groove corresponding to the second guide groove. The second perforation is provided with a second guide post, which passes through the second positioning groove and the second guide groove; The first clamping part further includes a second pressure plate, one end of which is rotatably connected to the second slider. The second pressure plate is provided with a second limiting strip groove. The second sub-clamping rod is also provided with a second bracket, which has a second limiting shaft that passes through the second limiting strip groove.

[0018] In some embodiments, the third sub-clamping rod is provided with a third through groove, which penetrates the third sub-clamping rod radially. A third slider is slidably disposed in the third through groove, and a third guide groove is provided on the third slider. The third guide groove includes a third inclined section and a third straight section along one end away from the third sub-clamping rod, and the third inclined section and the third straight section are connected. The third sub-clamping rod is provided with a third positioning groove corresponding to the third guide groove. A third guide post is provided in the third through hole, and the third guide post passes through the third positioning groove and the third guide groove; The second clamping part also includes a third pressure plate, one end of which is rotatably connected to the third slider. The third pressure plate is provided with a third limiting strip groove. The third sub-clamping rod is also provided with a third bracket, which has a third limiting shaft that passes through the third limiting strip groove.

[0019] In some embodiments, the fourth sub-clamping rod is provided with a fourth through groove, which penetrates the fourth sub-clamping rod radially. A fourth slider is slidably disposed in the fourth through groove, and a fourth guide groove is provided on the fourth slider. The fourth guide groove includes a fourth inclined section and a fourth straight section along one end away from the fourth sub-clamping rod, and the fourth inclined section and the fourth straight section are connected. The fourth sub-clamping rod is provided with a fourth positioning groove corresponding to the fourth guide groove. The fourth guide post is provided in the fourth through hole, and the fourth guide post passes through the fourth positioning groove and the fourth guide groove; The second clamping part further includes a fourth pressure plate, one end of which is rotatably connected to the fourth slider. The fourth pressure plate is provided with a fourth limiting strip groove. The fourth sub-clamping rod is also provided with a fourth bracket, which has a fourth limiting shaft that passes through the fourth limiting strip groove.

[0020] In some embodiments, a first locking rod is provided on the end face of the first clamping plate adjacent to the second clamping plate, and the second clamping plate is provided with a first locking cavity and a first locking port communicating with the first locking cavity corresponding to the first locking rod. The first locking rod is adapted to extend into the first locking cavity through the first locking port. A first lock head is slidably disposed within the first lock cavity, and a first lock groove is provided on the first lock rod; the first lock head is adapted to fit into the first lock groove; The first lock head has a first locking surface and a second locking surface in its sliding direction, and the first locking surface has a first chamfer near the edge of the first clamping plate; A fifth elastic element is provided between the second locking surface and the inner wall of the first locking cavity, and a first pull rod is provided on the second locking surface, the first pull rod extending out of the second clamping plate; The end of the first pull rod away from the first lock head is provided with a first hand grip; The first clamping plate has a second locking rod on its end face adjacent to the second clamping plate. The second clamping plate has a second locking cavity and a second locking port connected to the second locking cavity, and the second locking rod is adapted to extend into the second locking cavity through the second locking port. A second lock head is slidably disposed within the second lock cavity, and a second lock groove is provided on the second lock rod; the second lock head is adapted to fit into the second lock groove; The second lock head has a third locking surface and a fourth locking surface in its sliding direction, and the third locking surface has a second chamfer near the edge of the second clamping plate; A sixth elastic element is provided between the second locking surface and the inner wall of the second locking cavity. A second pull rod is provided on the second locking surface, and the second pull rod extends out of the second clamping plate. A second hand grip is provided at the end of the second pull rod away from the second lock head. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 2 This is an exploded view of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 3 This is a partial cross-sectional view of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first sub-clamping rod of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 5 This is a partially enlarged view of the structural schematic diagram of the first sub-clamping rod of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the first pressure plate of the high-frequency current partial discharge sensor according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of the second sub-clamping rod of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 8 This is a partially enlarged view of the structural schematic diagram of the second sub-clamping rod of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the second pressure plate of the high-frequency current partial discharge sensor according to an embodiment of the present invention.

[0023] Figure 10 This is a schematic diagram of the structure of the third sub-clamping rod of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 11 This is a partially enlarged view of the structural schematic diagram of the third sub-clamping rod of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the third pressure plate of the high-frequency current partial discharge sensor according to an embodiment of the present invention.

[0024] Figure 13This is a schematic diagram of the structure of the fourth sub-clamping rod of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 14 This is a partially enlarged view of the structural schematic diagram of the fourth sub-clamping rod of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 15 This is a schematic diagram of the structure of the fourth pressure plate of the high-frequency current partial discharge sensor according to an embodiment of the present invention.

[0025] Figure 16 This is a schematic diagram of the structure of the first perforation of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 17 This is a schematic diagram of the second perforation structure of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 18 This is a schematic diagram of the third perforation structure of the high-frequency current partial discharge sensor according to an embodiment of the present invention; Figure 19 This is a schematic diagram of the fourth perforation structure of the high-frequency current partial discharge sensor according to an embodiment of the present invention.

[0026] Figure label: 100. High-frequency current partial discharge sensor; 1. Circular detection section; 101. First arc-shaped detection section; 102. Second arc-shaped detection section; 103. Detection hole; 2. First clamping part; 201. First clamping plate; 202. First groove; 203. First clamping rod; 2031, First sub-clamping rod; 20311, First guide protrusion; 20312, First through groove; 20313, First slider; 20314, First guide groove; 20315, First inclined section; 20316, First straight section; 20317, First positioning groove; 20318, First guide post; 2032, Second sub-clamping rod; 20321, Second guide protrusion; 20322, Second through groove; 20323, Second slider; 20324, Second guide groove; 20325, Second inclined section; 20326, Second straight section; 20327, Second positioning groove; 20328, Second guide post; 204. First linkage assembly; 2041. First driving component; 2042. Second driving component; 2043. First transmission component; 20431. First sliding seat; 20432. Second sliding seat; 20433. Third sliding seat; 20434. Fourth sliding seat; 2044. First fixing component; 2045. First elastic component; 20451. First telescopic rod; 20452. First spring; 2046. First rotating shaft; 2047. Second fixing component; 2048. Second elastic component; 20481. Second telescopic rod; 20482. Second spring; 2049. Second rotating shaft; 205. First driving end; 206. First driven end; 207. First perforation; 2071. First guide groove; 208. Second perforation; 2081. Second guide groove; 209. First pressure plate; 2091. First limiting groove; 210. First bracket; 2101. First limiting shaft; 211. Second bracket; 2111. Second limiting shaft; 212. Second pressure plate; 2121. Second limiting groove; 3. Second clamping part; 301. Second clamping plate; 302. Second groove; 303. Second clamping rod; 3031, Third sub-clamping rod; 30311, Third guide protrusion; 30312, Third through groove; 30313, Third slider; 30314, Third guide groove; 30315, Third inclined section; 30316, Third straight section; 30317, Third positioning groove; 30318, Third guide post; 3032, Fourth sub-clamping rod; 30321, Fourth guide protrusion; 30322, Fourth through groove; 30323, Fourth slider; 30324, Fourth guide groove; 30325, Fourth inclined section; 30326, Fourth straight section; 30327, Fourth positioning groove; 30328, Fourth guide post; 304. Second linkage group; 3041. Third driving component; 3042. Fourth driving component; 3043. Second transmission component; 30431, Fifth sliding seat; 30432, Sixth sliding seat; 30433, Seventh sliding seat; 30434, Eighth sliding seat; 3044, Third fastener; 3045, Third elastic element; 30451, Third telescopic rod; 30452, Third spring; 3046, Third pivot; 3047, Fourth fixing component; 3048, Fourth elastic component; 30461, Fourth telescopic rod; 30462, Fourth spring; 3049, Fourth rotating shaft; 305, Second driving end; 306, Second driven end; 307, Third perforation; 3071, Third guide groove; 308. Fourth perforation; 3081. Fourth guide groove; 309. Third pressure plate; 3091. Third limiting groove; 310. Third bracket; 3101. Third limiting shaft; 311, Fourth bracket; 3111, Fourth limiting shaft; 312. Fourth pressure plate; 3121. Fourth limiting groove; 4. Through hole; 5. First locking rod; 6. First locking cavity; 601. First lock opening; 7. First lock groove; 9. First lock head; 901. First locking surface; 9011. First chamfer; 902. Second locking surface; 10. First pull rod; 11. First grip; 12. Fifth elastic element; 13. Second locking rod; 14. Second locking cavity; 1401. Second locking port; 15. Second lock slot; 16. Second lock head; 1601. Third locking surface; 16011. Second chamfer; 1602. Fourth locking surface; 17. Second pull rod; 18. Second grip; 19. Sixth elastic element. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] like Figures 1-19 As shown, in order to solve the problem that the high-frequency current partial discharge sensor 100 in the related technology is not easy to install and disassemble, the present invention provides a high-frequency current partial discharge sensor 100.

[0029] like Figures 1-3 As shown, the high-frequency current partial discharge sensor 100 of this embodiment includes an annular detection part 1, a first clamping part 2, and a second clamping part 3.

[0030] The annular detection unit 1 includes a first arc-shaped detection unit 101 and a second arc-shaped detection unit 102, which are connected together to define a detection hole.

[0031] It is understood that the detection hole defined by the first arc-shaped detection part 101 and the second arc-shaped detection part 102 is for the cable to pass through, and the annular detection part 1 including the first arc-shaped detection part 101 and the second arc-shaped detection part 102 can collect relevant parameters of the cable. At the same time, the relevant structure of the annular detection part 1 is a conventional structure in the art, and will not be described in detail here.

[0032] To facilitate the installation and disassembly of the high-frequency current partial discharge sensor 100 in this embodiment of the invention, a first clamping part 2 is disposed on the first arc-shaped detection part 101, and a second clamping part 3 is disposed on the second arc-shaped detection part 102; wherein the first clamping part 2 includes a first clamping plate 201, on which a first groove 202 is provided; the second clamping part 3 includes a second clamping plate 301, on which a second groove 302 is provided; the first clamping plate 201 and the second clamping plate 301 are detachably connected; the first groove 202 and the second groove 302 define a through hole 4, which is also used for the cable to pass through and for fixing the cable. The cable of 4 is fixed. The first clamping part 2 also includes a first clamping rod 203, which passes through the first clamping plate 201 and extends into the first groove 202. The first clamping rod 203 is slidable relative to the first clamping plate 201 so that the first clamping rod 203 can move between the first clamping locked position and the first clamping unlocked position. The second clamping part 3 also includes a second clamping rod 303, which passes through the second clamping plate 301 and extends into the second groove 302. The second clamping rod 303 is slidable relative to the first clamping plate 201 so that the second clamping rod 303 can move between the second clamping locked position and the second clamping unlocked position.

[0033] When the first clamping plate 201 and the second clamping plate 301 are connected, the first clamping rod 203 is in the first clamping unlocking position and the second clamping rod 303 is in the second clamping unlocking position. When the first clamping plate 201 and the second clamping plate 301 are disengaged, the first clamping rod 203 is in the first clamping locking position and the second clamping rod 303 is in the second clamping locking position.

[0034] It is understandable that when the first clamping rod 203 is in the first clamping locked position and the second clamping rod 303 is in the second clamping locked position, the first clamping rod 203 and the second clamping rod 303 can fix the cable, and the cable also passes through the detection hole of the annular detection unit 1 so that the annular detection unit 1 can detect it. When the first clamping rod 203 is in the first clamping unlocked position and the second clamping rod 303 is in the second clamping unlocked position, the first clamping rod 203 and the second clamping rod 303 stop fixing the cable, so that the cable can be removed.

[0035] Therefore, when it is necessary to test the cable, simply connect the first clamping plate 201 and the second clamping plate 301 and place them on the cable, while using the first clamping rod 203 and the second clamping rod 303 to fix the cable; after the cable test is completed, simply detach the first clamping plate 201 and the second clamping plate 301 to release the fixation of the cable by the first clamping rod 203 and the second clamping rod 303.

[0036] Therefore, the high-frequency current partial discharge sensor 100 of this embodiment of the invention has the characteristics of being easy to disassemble and install.

[0037] In some embodiments, the first clamping part 2 further includes a first linkage group 204, which is disposed on the first clamping plate 201 and has a first driving end 205 and a first driven end 206. The second clamping part 3 also includes a second linkage group 304, which is disposed on the second clamping plate 301 and has a second driving end 305 and a second driven end 306. The first driving end 205 and the second driving end 305 are adapted to abut against each other so that the first driving end 205 can move between a first driving position protruding from the edge of the first clamping plate 201 and a second driving position flush with the edge of the first clamping plate 201, and the second driving end 305 can move between a third driving position protruding from the edge of the second clamping plate 301 and a fourth driving position flush with the edge of the second clamping plate 301. The first driven end 206 is connected to the first clamping rod 203 to drive the first clamping rod 203 to move between the first clamping locked position and the first clamping unlocked position; The second driven end 306 is connected to the second clamping rod 303 to drive the second clamping rod 303 to move between the second clamping locked position and the second clamping unlocked position; When the first driving end 205 is in the first driving position, the first clamping rod 203 is in the first clamping unlock position; when the first driving end 205 is in the second driving position, the first clamping rod 203 is in the first clamping lock position. When the second drive end 305 is in the third drive position, the second clamping rod 303 is in the second clamping unlock position; when the second drive end 305 is in the fourth drive position, the second clamping rod 303 is in the second clamping lock position.

[0038] It is understandable that during the connection of the first clamping plate 201 and the second clamping plate 301, the first driving end 205 and the second driving end 305 abut against each other. When the first clamping plate 201 and the second clamping plate 301 are connected, the first driving end 205 moves from the first driving position to the second driving position, thereby driving the first clamping rod 203 to move from the first clamping unlock position to the first clamping locking position; the second driving end 305 moves from the third driving position to the fourth driving position, thereby driving the second clamping rod 303 to move from the second clamping unlock position to the first clamping locking position. Thus, when the first clamping plate 201 and the second clamping plate 301 are connected, the first clamping rod 203 and the second clamping rod 303 can fix the cable.

[0039] In some embodiments, the first linkage group 204 includes a first driving member 2041, a second driving member 2042, a first transmission member 2043, a first fixing member 2044, a first elastic member 2045, a first rotating shaft 2046, a second fixing member 2047, a second elastic member 2048, and a second rotating shaft 2049, wherein one end of the first driving member 2041 and one end of the second driving member 2042 are both first driving ends 205; The second linkage group 304 includes a third driving member 3041, a fourth driving member 3042, a second transmission member 3043, a third fixing member 3044, a third elastic member 3045, a third rotating shaft 3046, a fourth fixing member 3047, a fourth elastic member 3048, and a fourth rotating shaft 3049. One end of the third driving member 3041 and one end of the fourth driving member 3042 are both second driving ends 305. One end of the first driving member 2041 and one end of the third driving member 3041 are adapted to engage in abutting transmission, and one end of the second driving member 2042 and one end of the fourth driving member 3042 are adapted to engage in abutting transmission, so that one end of the first driving member 2041 and one end of the second driving member 2042 can move between a first driving position protruding from the edge of the first clamping plate 201 and a second driving position flush with the edge of the first clamping plate 201, so that one end of the third driving member 3041 and one end of the fourth driving member 3042 can move between a third driving position protruding from the edge of the second clamping plate 301 and a fourth driving position flush with the edge of the second clamping plate 301; The first transmission member 2043 is provided with a first sliding seat 20431, which is slidably disposed on the first transmission member 2043. The other end of the first driving member 2041 is rotatably connected to the first sliding seat 20431. The first driving member 2041 is connected to the first clamping plate 201 through a first rotating shaft 2046, and the first driving member 2041 can rotate around the first rotating shaft 2046. The first fixing member 2044 is provided on the first clamping plate 201. One end of the first elastic member 2045 is rotatably connected to one end of the first driving member 2041, and the other end of the first elastic member 2045 is rotatably connected to the first fixing member 2044. The first transmission member 2043 is provided with a second sliding seat 20432, which is slidably disposed on the first transmission member 2043. The other end of the second driving member 2042 is connected to the second sliding seat 20432. The second driving member 2042 is connected to the first clamping plate 201 through a second rotating shaft 2049 and can rotate around the second rotating shaft 2049. The second fixing member 2047 is provided on the second clamping plate 301. One end of the second elastic member 2048 is rotatably connected to one end of the second driving member 2042, and the other end of the second elastic member 2048 is rotatably connected to the second fixing member 2047. like Figures 4-9As shown, there are two first clamping rods 203, namely a first sub-clamping rod 2031 and a second sub-clamping rod 2032. A third sliding seat 20433 is provided on the first transmission member 2043, and the third sliding seat 20433 is slidably disposed on the first transmission member 2043. One end of the first sub-clamping rod 2031 is rotatably connected to the third sliding seat 20433. A fourth sliding seat 20434 is provided on the first transmission member 2043, and the fourth sliding seat 20434 is slidably disposed on the first transmission member 2043. One end of the second sub-clamping rod 2032 is rotatably connected to the fourth sliding seat 20434. The second transmission member 3043 is provided with a fifth sliding seat 30431, which is slidably disposed on the second transmission member 3043. The other end of the third driving member 3041 is rotatably connected to the fifth sliding seat 30431. The third driving member 3041 is connected to the second clamping plate 301 through a third rotating shaft 3046 and can rotate around the third rotating shaft 3046. The third fixing member 3044 is disposed on the second clamping plate 301. One end of the third elastic member 3045 is rotatably connected to one end of the third driving member 3041, and the other end of the third elastic member 3045 is rotatably connected to the third fixing member 3044. The second transmission member 3043 is provided with a sixth sliding seat 30432, which is slidably disposed on the second transmission member 3043. The other end of the fourth driving member 3042 is connected to the sixth sliding seat 30432. The fourth driving member 3042 is connected to the second clamping plate 301 through the fourth rotating shaft 3049 and can rotate around the fourth rotating shaft 3049. The fourth fixing member 3047 is disposed on the second clamping plate 301. One end of the fourth elastic member 3048 is rotatably connected to one end of the fourth driving member 3042, and the other end of the fourth elastic member 3048 is rotatably connected to the fourth fixing member 3047. like Figures 10-15 As shown, there are two second clamping rods 303, namely the third sub-clamping rod 3031 and the fourth sub-clamping rod 3032. The second transmission member 3043 is provided with a seventh sliding seat 30433, which is slidably disposed on the second transmission member 3043. One end of the third sub-clamping rod 3031 is rotatably connected to the seventh sliding seat 30433. The second transmission member 3043 is provided with an eighth sliding seat 30434, which is slidably disposed on the second transmission member 3043. One end of the fourth sub-clamping rod 3032 is rotatably connected to the eighth sliding seat.

[0040] It is understandable that during the connection of the first clamping plate 201 and the second clamping plate 301, one end of the first driving member 2041 and one end of the third driving member 3041 abut against each other, and one end of the second driving member 2042 and one end of the fourth driving member 3042 abut against each other, so that one end of the first driving member 2041 and one end of the second driving member 2042 move from the first driving position to the second driving position, so as to drive the first sub-clamping rod 2031 and the second sub-clamping rod 2032 from the first clamping unlocking position to the first clamping locking position through the first transmission member 2043; at the same time, one end of the third driving member 3041 and one end of the fourth driving member 3042 move from the third driving position to the fourth driving position, so as to drive the third sub-clamping rod 3031 and the fourth sub-clamping rod 3032 from the second clamping unlocking position to the first clamping locking position through the second transmission member 3043, thereby fixing the cable.

[0041] During the disengagement of the first clamping plate 201 and the second clamping plate 301, one end of the first driving member 2041 and one end of the third driving member 3041 abut against each other, and one end of the second driving member 2042 and one end of the fourth driving member 3042 abut against each other, so that one end of the first driving member 2041 and one end of the second driving member 2042 move from the second driving position to the first driving position, so as to drive the first sub-clamping rod 2031 and the second sub-clamping rod 2032 from the first clamping locking position to the first clamping unlocking position through the first transmission member 2043; at the same time, one end of the third driving member 3041 and one end of the fourth driving member 3042 move from the fourth driving position to the third driving position, so as to drive the third sub-clamping rod 3031 and the fourth sub-clamping rod 3032 from the second clamping locking position to the first clamping unlocking position through the second transmission member 3043, thereby enabling the cable to be unlocked.

[0042] In some embodiments, the first elastic member 2045 includes a first telescopic rod 20451 and a first spring 20452. The first spring 20452 is sleeved on the first telescopic rod 20451. One end of the first telescopic rod 20451 is rotatably connected to one end of the first driving member 2041, and the other end of the first telescopic rod 20451 is rotatably connected to the first fixing member 2044. The first telescopic rod 20451 can extend and retract under the drive of the first driving member 2041, and the first spring 20452 can drive one end of the first driving member 2041 to self-reset from the second driving position to the first driving position.

[0043] The second elastic element 2048 includes a second telescopic rod 20481 and a second spring 20482. The second spring 20482 is sleeved on the second telescopic rod 20481. One end of the second telescopic rod 20481 is rotatably connected to one end of the second driving member 2042, and the other end of the second telescopic rod 20481 is rotatably connected to the second fixing member 2047. The second telescopic rod 20481 can extend and retract under the drive of the second driving member 2042, and the second spring 20482 can drive one end of the second driving member 2042 to reset from the second driving position to the first driving position.

[0044] The third elastic element 3045 includes a third telescopic rod 30451 and a third spring 30452. The third spring 30452 is sleeved on the third telescopic rod 30451. One end of the third telescopic rod 30451 is rotatably connected to one end of the third driving member 3041, and the other end of the third telescopic rod 30451 is rotatably connected to the third fixing member 3044. The third telescopic rod 30451 can extend and retract under the drive of the third driving member 3041, and the third spring 30452 can drive one end of the first driving member 2041 to reset from the fourth driving position to the third driving position. The fourth elastic element 3048 includes a fourth telescopic rod 30461 and a fourth spring 30462. The fourth spring 30462 is sleeved on the fourth telescopic rod 30461. One end of the fourth telescopic rod 30461 is rotatably connected to one end of the fourth driving member 3042, and the other end of the fourth telescopic rod 30461 is rotatably connected to the fourth fixing member 3047. The fourth telescopic rod 30461 can extend and retract under the drive of the fourth driving member 3042, and the fourth spring 30462 can self-reset from the fourth driving position to the third driving position before one end of the fourth driving member 3042 is driven.

[0045] In some embodiments, such as Figures 16-19 As shown, the first clamping plate 201 is provided with a first through hole 207 for the first sub-clamping rod 2031 to pass through, the outer periphery of the first sub-clamping rod 2031 is provided with a first guide protrusion 20311 extending along its axial direction, and the first through hole 207 is provided with a first guide groove 2071 that cooperates with the first guide protrusion 20311. The first clamping plate 201 is provided with a second through hole 208 for the second sub-clamping rod 2032 to pass through. The outer periphery of the second sub-clamping rod 2032 is provided with a second guide protrusion 20321 extending along its axial direction. The second through hole 208 is provided with a second guide groove 2081 that cooperates with the second guide protrusion 20321. The second clamping plate 301 is provided with a third through hole 307 for the third sub-clamping rod 3031 to pass through. The outer periphery of the third sub-clamping rod 3031 is provided with a third guide protrusion 30311 extending along its axial direction. The third through hole 307 is provided with a third guide groove 3071 that cooperates with the third guide protrusion 30311. The second clamping plate 301 is provided with a fourth through hole 308 for the fourth sub-clamping rod 3032 to pass through. The outer periphery of the fourth sub-clamping rod 3032 is provided with a fourth guide protrusion 30321 extending along its axial direction. The fourth through hole 308 is provided with a fourth guide groove 3081 that cooperates with the fourth guide protrusion 30321.

[0046] By setting a first guide protrusion 20311 on the first sub-clamping rod 2031 and setting a first guide groove 2071 that matches the first guide protrusion 20311 in the first through hole 207, the first sub-clamping rod 2031 can be guided, making the movement of the first sub-clamping rod 2031 more stable. By setting a second guide protrusion 20321 on the second sub-clamping rod 2032 and setting a second guide groove 2081 that matches the second guide protrusion 20321 in the second through hole 208, the second sub-clamping rod 2032 can be guided, making the movement of the second sub-clamping rod 2032 more stable. By setting a third guide protrusion 30311 on the third sub-clamping rod 3031 and setting a third guide groove 3071 that matches the third guide protrusion 30311 in the third through hole 307, the third sub-clamping rod 3031 can be guided, making the movement of the third sub-clamping rod 3031 more stable. By setting a fourth guide protrusion 30321 on the fourth sub-clamping rod 3032 and setting a fourth guide groove 3081 that matches the fourth guide protrusion 30321 in the fourth through hole 308, the fourth sub-clamping rod 3032 can be guided, making the movement of the fourth sub-clamping rod 3032 more stable.

[0047] In some embodiments, the first sub-clamping rod 2031 is provided with a first through groove 20312, which penetrates the first clamping rod 203 radially along the first sub-clamping rod 2031. A first slider 20313 is slidably disposed within a first through groove 20312. A first guide groove 20314 is provided on the first slider 20313. The first guide groove 20314 includes a first inclined section 20315 and a first straight section 20316 sequentially arranged along the direction away from the end of the first sub-clamping rod 2031. The first inclined section 20315 and the first straight section 20316 are connected, and the first inclined section 20315 is obliquely upward along the direction away from the end of the first sub-clamping rod 2031. A first fixed... The first positioning groove 20317 has a first guide post 20318 inside the first through hole 207, and the first guide post 20318 passes through the first positioning groove 20317 and the first guide groove 20314; the first clamping part 2 also includes a first pressure plate 209, one end of the first pressure plate 209 is rotatably connected to the first slider 20313, and the first pressure plate 209 is provided with a first limiting strip groove 2091; the first sub-clamping rod 2031 is also provided with a first bracket 210, the first bracket 210 has a first limiting shaft 2101, and the first limiting shaft 2101 passes through the first limiting strip groove 2091.

[0048] It is understandable that when the first sub-clamping rod 2031 moves from the first clamping unlock position to the first clamping lock position, the first guide post 20318 moves from the first straight section 20316 to the first inclined section 20315. Since the first inclined section 20315 is set at an angle upward, the first guide post 20318 drives the first slider 20313 to move upward, thereby driving the first pressure plate 209 to abut against the cable, thereby further fixing the cable.

[0049] In some embodiments, the second sub-clamping rod 2032 is provided with a second through groove 20322, which penetrates the second clamping rod 303 radially. A second slider 20323 is slidably disposed within the second through groove 20322. The second slider 20323 is provided with a second guide groove 20324, which includes a second inclined section 20325 and a second straight section 20326 sequentially disposed along a direction away from one end of the second sub-clamping rod 2032. The second inclined section 20325 and the second straight section 20326 are connected. The second sub-clamping rod 2032 has a corresponding... The second guide groove 20324 is provided with a second positioning groove 20327, and a second guide post 20328 is provided in the second through hole 208. The second guide post 20328 passes through the second positioning groove 20327 and the second guide groove 20324. The first clamping part 2 also includes a second pressure plate 212. One end of the second pressure plate 212 is rotatably connected to the second slider 20323. The second pressure plate 212 is provided with a second limiting strip groove 2121. The second sub-clamping rod 2032 is also provided with a second bracket 211. The second bracket 211 has a second limiting shaft 2111, and the second limiting shaft 2111 passes through the second limiting strip groove 2121.

[0050] It is understandable that when the second sub-clamping rod 2032 moves from the second clamping unlock position to the second clamping lock position, the second guide post 20328 moves from the second straight section 20326 to the second inclined section 20325. Since the second inclined section 20325 is set at an angle upward, the second guide post 20328 drives the second slider 20323 to move upward, thereby driving the second pressure plate 212 to abut against the cable, thereby further fixing the cable.

[0051] In some embodiments, the third sub-clamping rod 3031 is provided with a third through groove 30312, which penetrates the third sub-clamping rod 3031 radially. A third slider 30313 is slidably disposed within the third through groove 30312. The third slider 30313 is provided with a third guide groove 30314, which includes a third inclined section 30315 and a third straight section 30316 at one end away from the third sub-clamping rod 3031. The third inclined section 30315 and the third straight section 30316 are connected. The third sub-clamping rod 3031 has a corresponding third guide groove 30314. The groove 30314 is provided with a third positioning groove 30317, and a third guide post 30318 is provided in the third through hole 307. The third guide post 30318 passes through the third positioning groove 30317 and the third guide groove 30314. The second clamping part 3 also includes a third pressure plate 309. One end of the third pressure plate 309 is rotatably connected to the third slider 30313. The third pressure plate 309 is provided with a third limiting strip groove 3091. The third sub-clamping rod 3031 is also provided with a third bracket 310. The third bracket 310 has a third limiting shaft 3101, and the third limiting shaft 3101 passes through the third limiting strip groove 3091.

[0052] It is understandable that when the third sub-clamping rod 3031 moves from the third clamping unlock position to the third clamping lock position, the third guide post 30318 moves from the third straight section 30316 to the third inclined section 30315. Since the third inclined section 30315 is set at an angle upward, the third guide post 30318 drives the third slider 30313 to move upward, thereby driving the third pressure plate 309 to abut against the cable, thereby further fixing the cable.

[0053] In some embodiments, such as Figure 15As shown, the fourth sub-clamping rod 3032 is provided with a fourth through groove 30322, which penetrates the fourth sub-clamping rod 3032 radially. A fourth slider 30323 is slidably disposed within the fourth through groove 30322. The fourth slider 30323 is provided with a fourth guide groove 30324, which includes a fourth inclined section 30325 and a fourth straight section 30326 along one end away from the fourth sub-clamping rod 3032. The fourth inclined section 30325 and the fourth straight section 30326 are connected. The fourth sub-clamping rod 3032 has a corresponding fourth guide groove. 30324 is provided with a fourth positioning groove 30327, and a fourth guide post 30328 is provided in the fourth through hole 308. The fourth guide post 30328 passes through the fourth positioning groove 30327 and the fourth guide groove 30324. The second clamping part 3 also includes a fourth pressure plate 312. One end of the fourth pressure plate 312 is rotatably connected to the fourth slider 30323. The fourth pressure plate 312 is provided with a fourth limiting strip groove 3121. The fourth sub-clamping rod 3032 is also provided with a fourth bracket 311. The fourth bracket 311 has a fourth limiting shaft 3111. The fourth limiting shaft 3111 passes through the fourth limiting strip groove 3121.

[0054] It is understandable that when the fourth sub-clamping rod 3032 moves from the fourth clamping unlock position to the fourth clamping lock position, the fourth guide post 30328 moves from the fourth straight section 30326 to the fourth inclined section 30325. Since the fourth inclined section 30325 is set at an angle upward, the fourth guide post 30328 drives the fourth slider 30323 to move upward, thereby driving the fourth pressure plate 312 to abut against the cable, thereby further fixing the cable.

[0055] In some embodiments, a first locking rod 5 is provided on the end face of the first clamping plate 201 adjacent to the second clamping plate 301. The second clamping plate 301 is provided with a first locking cavity 6 and a first locking port 601 communicating with the first locking cavity 6, corresponding to the first locking rod 5. The first locking rod 5 is adapted to extend into the first locking cavity 6 through the first locking port 601. A first locking head 9 is slidably provided in the first locking cavity 6. A first locking groove 7 is provided on the first locking rod 5. The first locking head 9 is adapted to fit into the first locking groove 7. The first locking head 9 has a first locking surface 901 and a second locking surface 902 in its sliding direction. A first chamfer 9011 is provided on the edge of the first clamping plate 201 adjacent to the first locking plate 201. A fifth elastic member 12 is provided between the second locking surface 902 and the inner wall of the first locking cavity 6. A first pull rod 10 is provided on the second locking surface 902. The first pull rod 10 extends out of the second clamping plate 301. A first hand grip 11 is provided at the end of the first pull rod 10 away from the first locking head 9. Understandably, the first locking rod 5 is inserted into the first locking cavity 6 through the first locking port 601. Guided by the first chamfer 9011, the first locking rod 5 further penetrates into the first locking cavity 6. The first locking head 9 is inserted into the first locking groove 7 under the action of the fifth elastic element 12 to fix the first clamping plate 201 and the second clamping plate 301. When it is necessary to separate the first clamping plate 201 and the second clamping plate 301, the first lever 10 is pulled by the first grip 11, thereby pulling the first locking head 9 out of the first locking groove 7, and then the first locking rod 5 is pulled out of the first locking cavity 6 to achieve the effect of separating the first clamping plate 201 and the second clamping plate 301.

[0056] A second locking rod 13 is provided on the end face of the first clamping plate 201 adjacent to the second clamping plate 301. The second clamping plate 301 has a second locking cavity 14 and a second locking port 1401 communicating with the second locking cavity 14, corresponding to the second locking rod 13. The second locking rod 13 is adapted to extend into the second locking cavity 14 through the second locking port 1401. A second locking head 16 is slidably provided within the second locking cavity 14. A second locking groove 15 is provided on the second locking rod 13. The second locking head 16 is adapted to engage with the second locking groove 15. The lock head 16 has a third locking surface 1601 and a fourth locking surface 1602 in its sliding direction. The third locking surface 1601 has a second chamfer 16011 near the edge of the second clamping plate 301. A sixth elastic member 19 is provided between the second locking surface 902 and the inner wall of the second lock cavity 14. A second pull rod 17 is provided on the second locking surface 902 and extends out of the second clamping plate 301. A second hand grip 18 is provided at the end of the second pull rod 17 away from the second lock head 16.

[0057] Understandably, the second locking rod 13 is inserted into the second locking cavity 14 through the second locking port 1401. Guided by the second chamfer 16011, the second locking rod 13 further penetrates into the second locking cavity 14. The second locking head 16 is inserted into the second locking groove 15 under the action of the fifth elastic member 12 to fix the first clamping plate 201 and the second clamping plate 301. When it is necessary to separate the first clamping plate 201 and the second clamping plate 301, the second lever 17 is pulled by the second grip 18, thereby pulling the second locking head 16 out of the second locking groove 15, and then the second locking rod 13 is pulled out of the second locking cavity 14 to achieve the effect of separating the second clamping plate 301 and the second clamping plate 301.

[0058] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-frequency current partial discharge sensor, characterized in that, The high-frequency current partial discharge sensor includes an annular detection part, a first clamping part, and a second clamping part. The annular detection part includes a first arc-shaped detection part and a second arc-shaped detection part. The first arc-shaped detection part and the second arc-shaped detection part are connected together to define a detection hole. The first clamping part is disposed on the first arc-shaped detection part, and the second clamping part is disposed on the second arc-shaped detection part. The first clamping part includes a first clamping plate, and the first clamping plate is provided with a first groove; The second clamping part includes a second clamping plate, the second clamping plate is provided with a second groove, the first clamping plate and the second clamping plate are detachably connected, and the first groove and the second groove define a through hole; The first clamping part further includes a first clamping rod, which extends through the first clamping plate into the first groove, and the first clamping rod is slidable relative to the first clamping plate so that the first clamping rod can move between a first clamping locked position and a first clamping unlocked position; The second clamping part further includes a second clamping rod, which extends through the second clamping plate into the second groove, and the second clamping rod is slidable relative to the first clamping plate so that the second clamping rod can move between a second clamping locked position and a second clamping unlocked position; When the first clamping plate and the second clamping plate are connected, the first clamping rod is in the first clamping unlock position and the second clamping rod is in the second clamping unlock position. When the first clamping plate and the second clamping plate are disengaged, the first clamping rod is in the first clamping locking position and the second clamping rod is in the second clamping locking position.

2. The high-frequency current partial discharge sensor according to claim 1, characterized in that, The first clamping part further includes a first linkage group, which is disposed on the first clamping plate and has a first driving end and a first driven end; The second clamping part further includes a second linkage group, which is disposed on the second clamping plate and has a second driving end and a second driven end; The first driving end and the second driving end are adapted to abut against each other so that the first driving end can move between a first driving position protruding from the edge of the first clamping plate and a second driving position flush with the edge of the first clamping plate, and the second driving end can move between a third driving position protruding from the edge of the second clamping plate and a fourth driving position flush with the edge of the second clamping plate. The first driven end is connected to the first clamping rod to drive the first clamping rod to move between the first clamping locked position and the first clamping unlocked position; The second driven end is connected to the second clamping rod to drive the second clamping rod to move between the second clamping locked position and the second clamping unlocked position; When the first driving end is in the first driving position, the first clamping rod is in the first clamping unlock position; when the first driving end is in the second driving position, the first clamping rod is in the first clamping lock position. When the second drive end is in the third drive position, the second clamping rod is in the second clamping unlock position; when the second drive end is in the fourth drive position, the second clamping rod is in the second clamping lock position.

3. The high-frequency current partial discharge sensor according to claim 2, characterized in that, The first linkage group includes a first driving component, a second driving component, a first transmission component, a first fixing component, a first elastic component, a first rotating shaft, a second fixing component, a second elastic component, and a second rotating shaft, wherein one end of the first driving component and one end of the second driving component are both first driving ends; The second linkage group includes a third driving component, a fourth driving component, a second transmission component, a third fixing component, a third elastic component, a third rotating shaft, a fourth fixing component, a fourth elastic component, and a fourth rotating shaft, wherein one end of the third driving component and one end of the fourth driving component are both second driving ends; One end of the first driving member and one end of the third driving member are adapted to engage in abutting transmission, and one end of the second driving member and one end of the fourth driving member are adapted to engage in abutting transmission, so that one end of the first driving member and one end of the second driving member can move between a first driving position protruding from the edge of the first clamping plate and a second driving position flush with the edge of the first clamping plate, so that one end of the third driving member and one end of the fourth driving member can move between a third driving position protruding from the edge of the second clamping plate and a fourth driving position flush with the edge of the second clamping plate; The first transmission member is provided with a first sliding seat, which is slidably disposed on the first transmission member. The other end of the first driving member is rotatably connected to the first sliding seat. The first driving component is connected to the first clamping plate via the first rotating shaft; The first fixing member is provided on the first clamping plate, one end of the first elastic member is rotatably connected to one end of the first driving member, and the other end of the first elastic member is rotatably connected to the first fixing member; The first transmission member is provided with a second sliding seat, which is slidably disposed on the first transmission member. The other end of the second driving member is connected to the second sliding seat. The second driving component is connected to the first clamping plate via the second rotating shaft; The second fixing member is provided on the second clamping plate, one end of the second elastic member is rotatably connected to one end of the second driving member, and the other end of the second elastic member is rotatably connected to the second fixing member; There are two first clamping rods, namely a first sub-clamping rod and a second sub-clamping rod. The first transmission member is provided with a third sliding seat, which is slidably disposed on the first transmission member, and one end of the first sub-clamping rod is rotatably connected to the third sliding seat; The first transmission member is provided with a fourth sliding seat, which is slidably disposed on the first transmission member, and one end of the second sub-clamping rod is rotatably connected to the fourth sliding seat; The second transmission member is provided with a fifth sliding seat, which is slidably disposed on the second transmission member. The other end of the third driving member is rotatably connected to the fifth sliding seat. The third driving component is connected to the second clamping plate via the third rotating shaft; The third fixing member is disposed on the second clamping plate, one end of the third elastic member is rotatably connected to one end of the third driving member, and the other end of the third elastic member is rotatably connected to the third fixing member; The second transmission member is provided with a sixth sliding seat, which is slidably disposed on the second transmission member. The other end of the fourth driving member is connected to the sixth sliding seat. The fourth driving component is connected to the second clamping plate via the fourth rotating shaft; The fourth fixing member is disposed on the second clamping plate, one end of the fourth elastic member is rotatably connected to one end of the fourth driving member, and the other end of the fourth elastic member is rotatably connected to the fourth fixing member; The second clamping rod consists of two parts, namely a third sub-clamping rod and a fourth sub-clamping rod. The second transmission member is provided with a seventh sliding seat, which is slidably disposed on the second transmission member, and one end of the third sub-clamping rod is rotatably connected to the seventh sliding seat; The second transmission component is provided with an eighth sliding seat, which is slidably disposed on the second transmission component, and one end of the fourth sub-clamping rod is rotatably connected to the eighth sliding seat.

4. The high-frequency current partial discharge sensor according to claim 3, characterized in that, The first elastic element includes a first telescopic rod and a first spring. The first spring is sleeved on the first telescopic rod. One end of the first telescopic rod is rotatably connected to one end of the first driving member, and the other end of the first telescopic rod is rotatably connected to the first fixing member. The second elastic element includes a second telescopic rod and a second spring. The second spring is sleeved on the second telescopic rod. One end of the second telescopic rod is rotatably connected to one end of the second driving member, and the other end of the second telescopic rod is rotatably connected to the second fixing member. The third elastic element includes a third telescopic rod and a third spring. The third spring is sleeved on the third telescopic rod. One end of the third telescopic rod is rotatably connected to one end of the third driving member, and the other end of the third telescopic rod is rotatably connected to the third fixing member. The fourth elastic element includes a fourth telescopic rod and a fourth spring. The fourth spring is sleeved on the fourth telescopic rod. One end of the fourth telescopic rod is rotatably connected to one end of the fourth driving member, and the other end of the fourth telescopic rod is rotatably connected to the fourth fixing member.

5. The high-frequency current partial discharge sensor according to claim 4, characterized in that, The first clamping plate is provided with a first through hole for the first sub-clamping rod to pass through, and the outer periphery of the first sub-clamping rod is provided with a first guide protrusion extending along its axial direction. The first through hole is provided with a first guide groove that cooperates with the first guide protrusion. The first clamping plate is provided with a second through hole for the second sub-clamping rod to pass through, the outer periphery of the second sub-clamping rod is provided with a second guide protrusion extending along its axial direction, and the second through hole is provided with a second guide groove that cooperates with the second guide protrusion; The second clamping plate is provided with a third through hole for the third sub-clamping rod to pass through, the outer periphery of the third sub-clamping rod is provided with a third guide protrusion extending along its axial direction, and the third through hole is provided with a third guide groove that cooperates with the third guide protrusion. The second clamping plate is provided with a fourth through hole for the fourth sub-clamping rod to pass through, and the outer periphery of the fourth sub-clamping rod is provided with a fourth guide protrusion extending along its axial direction. The fourth through hole is provided with a fourth guide groove that cooperates with the fourth guide protrusion.

6. The high-frequency current partial discharge sensor according to claim 5, characterized in that, The first sub-clamping rod is provided with a first through groove, which penetrates the first clamping rod radially. A first slider is slidably disposed in the first through groove. The first slider is provided with a first guide groove. The first guide groove includes a first inclined section and a first straight section arranged sequentially along the direction away from the end of the first sub-clamping rod. The first inclined section and the first straight section are connected. The first sub-clamping rod is provided with a first positioning groove corresponding to the first guide groove. The first guide post is provided in the first perforation, and the first guide post passes through the first positioning groove and the first guide groove; The first clamping part further includes a first pressure plate, one end of which is rotatably connected to the first slider. The first pressure plate is provided with a first limiting strip groove. The first sub-clamping rod is also provided with a first bracket, which has a first limiting shaft that passes through the first limiting strip groove.

7. The high-frequency current partial discharge sensor according to claim 5, characterized in that, The second sub-clamping rod is provided with a second through groove, which penetrates the second clamping rod radially. A second slider is slidably disposed in the second through groove. The second slider is provided with a second guide groove. The second guide groove includes a second inclined section and a second straight section arranged sequentially along the direction away from the end of the second sub-clamping rod. The second inclined section and the second straight section are connected. The second sub-clamping rod is provided with a second positioning groove corresponding to the second guide groove. The second perforation is provided with a second guide post, which passes through the second positioning groove and the second guide groove; The first clamping part further includes a second pressure plate, one end of which is rotatably connected to the second slider. The second pressure plate is provided with a second limiting strip groove. The second sub-clamping rod is also provided with a second bracket, which has a second limiting shaft that passes through the second limiting strip groove.

8. The high-frequency current partial discharge sensor according to claim 5, characterized in that, The third sub-clamping rod is provided with a third through groove, which penetrates the third sub-clamping rod radially. A third slider is slidably disposed in the third through groove, and a third guide groove is provided on the third slider. The third guide groove includes a third inclined section and a third straight section along one end away from the third sub-clamping rod, and the third inclined section and the third straight section are connected. The third sub-clamping rod is provided with a third positioning groove corresponding to the third guide groove. A third guide post is provided in the third through hole, and the third guide post passes through the third positioning groove and the third guide groove; The second clamping part also includes a third pressure plate, one end of which is rotatably connected to the third slider. The third pressure plate is provided with a third limiting strip groove. The third sub-clamping rod is also provided with a third bracket, which has a third limiting shaft that passes through the third limiting strip groove.

9. The high-frequency current partial discharge sensor according to claim 5, characterized in that, The fourth sub-clamping rod is provided with a fourth through groove, which penetrates the fourth sub-clamping rod radially. A fourth slider is slidably disposed in the fourth through groove, and a fourth guide groove is provided on the fourth slider. The fourth guide groove includes a fourth inclined section and a fourth straight section along one end away from the fourth sub-clamping rod, and the fourth inclined section and the fourth straight section are connected. The fourth sub-clamping rod is provided with a fourth positioning groove corresponding to the fourth guide groove. The fourth guide post is provided in the fourth through hole, and the fourth guide post passes through the fourth positioning groove and the fourth guide groove; The second clamping part further includes a fourth pressure plate, one end of which is rotatably connected to the fourth slider. The fourth pressure plate is provided with a fourth limiting strip groove. The fourth sub-clamping rod is also provided with a fourth bracket, which has a fourth limiting shaft that passes through the fourth limiting strip groove.

10. The high-frequency current partial discharge sensor according to claim 1, characterized in that, The first clamping plate has a first locking rod on its end face adjacent to the second clamping plate. The second clamping plate has a first locking cavity and a first locking port communicating with the first locking cavity corresponding to the first locking rod. The first locking rod is adapted to extend into the first locking cavity through the first locking port. A first lock head is slidably disposed within the first lock cavity, and a first lock groove is provided on the first lock rod; the first lock head is adapted to fit into the first lock groove; The first lock head has a first locking surface and a second locking surface in its sliding direction, and the first locking surface has a first chamfer near the edge of the first clamping plate; A fifth elastic element is provided between the second locking surface and the inner wall of the first locking cavity, and a first pull rod is provided on the second locking surface, the first pull rod extending out of the second clamping plate; The end of the first pull rod away from the first lock head is provided with a first hand grip; The first clamping plate has a second locking rod on its end face adjacent to the second clamping plate. The second clamping plate has a second locking cavity and a second locking port connected to the second locking cavity, and the second locking rod is adapted to extend into the second locking cavity through the second locking port. A second lock head is slidably disposed within the second lock cavity, and a second lock groove is provided on the second lock rod; the second lock head is adapted to fit into the second lock groove; The second lock head has a third locking surface and a fourth locking surface in its sliding direction, and the third locking surface has a second chamfer near the edge of the second clamping plate; A sixth elastic element is provided between the second locking surface and the inner wall of the second locking cavity. A second pull rod is provided on the second locking surface, and the second pull rod extends out of the second clamping plate. A second hand grip is provided at the end of the second pull rod away from the second lock head.

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