CN212083613U - Ultraviolet pulse sensing node - Google Patents
Ultraviolet pulse sensing node Download PDFInfo
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- CN212083613U CN212083613U CN202020447690.6U CN202020447690U CN212083613U CN 212083613 U CN212083613 U CN 212083613U CN 202020447690 U CN202020447690 U CN 202020447690U CN 212083613 U CN212083613 U CN 212083613U
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- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The utility model discloses an ultraviolet pulse sensing node, which comprises a square shell, a mounting bracket, a sensing bracket and an ultraviolet sensor; and a power module, a microprocessor, an A/D acquisition circuit and a wireless communication module are arranged in the square shell. The ultraviolet pulse sensing node can acquire ultraviolet pulse light signals by utilizing an ultraviolet sensor and an A/D acquisition circuit, so that the microprocessor analyzes the number of pulses and analyzes the density of the number of pulses to judge the discharge strength, thereby judging whether fault risks exist or not; utilize wireless communication module can be convenient for send out the cubical switchboard with ultraviolet pulse data is wireless outside, the host computer of being convenient for carries out the monitoring of long-range discharge intensity.
Description
Technical Field
The utility model relates to a sensing node, especially an ultraviolet pulse sensing node.
Background
The high-voltage switch is an electrical appliance product which is used for power generation, power transmission, power distribution, electric energy conversion and consumption of a power system and plays roles of on-off, control or protection and the like, has a voltage grade of 3.6 kV-550 kV, and mainly comprises a high-voltage circuit breaker, a high-voltage isolating switch, a grounding switch, a high-voltage load switch and the like. The high-voltage switch cabinet is an electrical device mainly comprising a high-voltage switch, and primary devices such as a bus, an insulator, a mutual inductor, a lightning arrester and a grounding switch and secondary devices for monitoring, controlling, measuring, adjusting and protecting the primary devices are assembled in a closed metal cabinet body. The high-voltage switch cabinet is widely applied to each link of a power grid, the safe operation of the high-voltage switch cabinet is directly related to the safety of the whole power grid and the power supply quality of a power system to users, and the high-voltage switch cabinet is one of the most important electrical equipment in the power system.
According to incomplete statistics, many domestic power generation companies and power companies have high-voltage switch cabinet faults of different degrees, and certain economic loss is caused. These faults, partly due to quality problems of the switchgear itself, are more important due to the lack of effective monitoring means for the switchgear at present. The traditional fault detection in the high-voltage switch cabinet needs to be carried out in a power failure state or a manual inspection mode is adopted, the power failure maintenance not only causes the reduction of the equipment availability and the power supply reliability of users, but also can only carry out periodic detection, the defect that metal components in the switch cabinet are hidden in the manufacturing process or the installation and operation is that partial discharge is easily caused under the action of long-term high voltage, high temperature, humidity, vibration and the like, and when the partial discharge occurs in the switch cabinet, ultraviolet light exists along with the radiation of light. Therefore, it is very necessary to design an ultraviolet pulse sensing node, which can detect ultraviolet pulses in the switch cabinet in real time, so as to find out possible fault risks in time.
Disclosure of Invention
Utility model purpose: the ultraviolet pulse sensing node can detect ultraviolet pulses in the switch cabinet in real time, so that possible fault risks can be found conveniently and timely.
The technical scheme is as follows: the utility model discloses an ultraviolet pulse sensing node, which comprises a square shell, a mounting bracket, a sensing bracket and an ultraviolet sensor;
a power module, a microprocessor, an A/D acquisition circuit and a wireless communication module are arranged in the square shell; the mounting bracket comprises an insertion rod, a mounting plate, an insulating plate and a length positioning bolt; a fixed mounting sleeve is vertically arranged at the center of the bottom of the square shell and the center of one of the vertical side surfaces; the pipe walls at the pipe orifices of the two fixedly installed sleeves are respectively provided with a locking threaded hole; the mounting plate is fixedly mounted in the middle of the insulating plate, and fixed mounting holes are formed in the four top corners of the insulating plate; one end of the inserting rod is inserted into one of the fixed mounting sleeves, and the other end of the inserting rod is vertically and fixedly mounted in the middle of the mounting plate; a guide sliding chute is arranged on the rod wall of the insertion rod along the length direction of the rod wall; the length positioning bolt is screwed in a locking threaded hole at the pipe orifice of the fixed mounting sleeve inserted with the inserting rod, and the end part of the screw rod of the length positioning bolt is pressed on the bottom of the guide chute;
the ultraviolet sensor is arranged on the top of the square shell through the sensing bracket, and an electric connection cable of the ultraviolet sensor extends into the square shell; the microprocessor is electrically connected with the output end of the A/D acquisition circuit, and the input end of the A/D acquisition circuit is electrically connected with the ultraviolet sensor through an electric connection cable; the power supply module supplies power to the ultraviolet sensor through an electric connection cable; the wireless communication module is electrically connected with the microprocessor; the power module supplies power for the microprocessor, the A/D acquisition circuit and the wireless communication module respectively.
Furthermore, the sensing support comprises a vertical pipe, a U-shaped clamping seat, an extension pipe, a locking bolt, a strip-shaped mounting plate, a strip-shaped bending plate, an inner side base plate, a positioning locking nut and a sensor mounting seat; the lower end of the vertical pipe is rotatably arranged at the center of the top surface of the square shell; the U-shaped clamping seat is fixedly arranged on the upper end part of the vertical pipe; a through hole is formed in the clamping plate on one side of the U-shaped clamping seat, and a locking threaded hole is formed in the clamping plate on the other side of the U-shaped clamping seat; the end part of the screw rod of the locking bolt passes through the through hole and then is installed on the locking threaded hole in a threaded manner; the clamping device comprises a U-shaped clamping seat, clamping plates, a rotating pin shaft and a rotating pin shaft, wherein the two opposite inner side surfaces of the clamping plates on the two sides of; the extension pipe is clamped and installed between the two arc-shaped clamping grooves; the middle part of the strip-shaped mounting plate is fixedly arranged on the end part of the extension pipe; two ends of the strip-shaped bending plate are respectively and fixedly arranged on two ends of the strip-shaped mounting plate, and an angle adjusting strip-shaped hole is formed in the plate surface of the strip-shaped bending plate along the length direction of the plate surface; the ultraviolet sensor is fixedly arranged on the side surface of the top of the sensor mounting seat, and an arc groove is arranged on the side surface of the bottom of the sensor mounting seat; a metal sleeve is arranged in the arc groove, and a positioning locking external thread is arranged on the outer wall of the metal sleeve; one side of the plate surface of the inner backing plate is provided with an arc convex surface, and a center round hole is arranged in the center of the plate surface of the inner backing plate in a penetrating manner; the metal sleeve sequentially penetrates through the angle adjusting strip-shaped hole and the central circular hole, the arc groove is tightly attached to the outer side plate surface of the strip-shaped bending plate, and the arc convex surface is tightly attached to the inner side plate surface of the strip-shaped bending plate; the positioning locking nut is screwed on the positioning locking external thread and extrudes the inner backing plate; an electric connection cable of the ultraviolet sensor sequentially penetrates through the bottom side face of the sensor mounting seat, the metal sleeve, the strip-shaped mounting plate, the extension pipe, the U-shaped clamping seat, the vertical pipe and the square shell and then enters the square shell.
Further, a strip-shaped wire outlet notch is formed in the pipe wall of the extension pipe along the length direction of the extension pipe; the electric connection cable in the extension pipe extends out of the strip-shaped wire outlet groove and then penetrates through the U-shaped clamping seat to enter the vertical pipe.
Furthermore, a metal mesh shielding layer is embedded into the pipe walls of the extension pipe and the vertical pipe.
Compared with the prior art, the utility model, its beneficial effect is: the fixed mounting sleeves are respectively arranged on the bottom and the vertical side surface, so that the plug-in mounting rod is conveniently mounted on the bottom side surface or the vertical side surface of the switch cabinet; the requirement for adjusting the axial length can be met by utilizing the positioning bolt, the fixed mounting sleeve and the inserting rod; the fixed mounting sleeve and the insertion rod can be prevented from rotating relatively by the guide sliding chute; the ultraviolet pulse light signals can be collected by utilizing the ultraviolet sensor and the A/D collecting circuit, so that the microprocessor analyzes the number of pulses and analyzes the density of the number of pulses to judge the discharge strength, and whether fault risks exist or not is judged; utilize wireless communication module can be convenient for send out the cubical switchboard with ultraviolet pulse data is wireless outside, the host computer of being convenient for carries out the monitoring of long-range discharge intensity.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the U-shaped clamp seat of the present invention;
FIG. 3 is a schematic view of the installation structure of the extension pipe of the present invention;
fig. 4 is a schematic view of the end face structure of the extension pipe of the present invention;
fig. 5 is a schematic diagram of the circuit structure of the present invention.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example 1:
as shown in fig. 1-5, the utility model discloses an ultraviolet pulse sensing node includes: the device comprises a square shell 1, a mounting bracket, a sensing bracket and an ultraviolet sensor 25;
a power module, a microprocessor, an A/D acquisition circuit and a wireless communication module are arranged in the square shell 1; the mounting bracket comprises an insertion rod 8, a mounting plate 3, an insulating plate 4 and a length positioning bolt 7; a fixed mounting sleeve 2 is vertically arranged at the center of the bottom of the square shell 1 and the center of one of the vertical side surfaces; the pipe walls at the pipe orifices of the two fixedly installed sleeves 2 are respectively provided with a locking threaded hole 6; the mounting plate 3 is fixedly arranged in the middle of the insulating plate 4, and the four top corners of the insulating plate 4 are provided with fixed mounting holes 5; one end of the plug-in rod 8 is inserted into one of the fixed mounting sleeves 2, and the other end is vertically and fixedly mounted in the middle of the mounting plate 3; a guide chute 9 is arranged on the rod wall of the insertion rod 8 along the length direction; the length positioning bolt 7 is screwed in a locking threaded hole 6 at the pipe orifice of the fixed mounting sleeve 2 inserted with the inserting rod 8, and the end part of the screw rod of the length positioning bolt 7 is pressed on the bottom of the guide sliding groove 9;
the ultraviolet sensor 25 is arranged on the top of the square shell 1 through a sensing bracket, and an electric connection cable 20 of the ultraviolet sensor 25 extends into the square shell 1; the microprocessor is electrically connected with the output end of the A/D acquisition circuit, and the input end of the A/D acquisition circuit is electrically connected with the ultraviolet sensor 25 through an electric connection cable 20; the power supply module supplies power to the ultraviolet sensor 25 through the electric connection cable 20; the wireless communication module is electrically connected with the microprocessor; the power module supplies power for the microprocessor, the A/D acquisition circuit and the wireless communication module respectively.
The fixed mounting sleeves 2 are respectively arranged on the bottom and the vertical side surface, so that the plug-in mounting rod 8 is conveniently mounted on the bottom side surface or the vertical side surface of the switch cabinet; the requirement of adjusting the axial length can be met by utilizing the positioning bolt 7, the fixed mounting sleeve 2 and the inserting rod 8; the fixed mounting sleeve 2 and the insertion rod 8 can be prevented from rotating relatively by the guide chute 9; the ultraviolet sensor 25 and the A/D acquisition circuit can be used for acquiring ultraviolet pulse light signals, so that the microprocessor analyzes the number of pulses and analyzes the density of the number of pulses to judge the discharge strength, and whether fault risks exist or not is judged; utilize wireless communication module can be convenient for send out the cubical switchboard with ultraviolet pulse data is wireless outside, the host computer of being convenient for carries out the monitoring of long-range discharge intensity.
Further, the sensing bracket comprises a vertical pipe 14, a U-shaped clamping seat 15, an extension pipe 19, a locking bolt 16, a strip-shaped mounting plate 22, a strip-shaped bending plate 23, an inner side backing plate 11, a positioning locking nut 12 and a sensor mounting seat 24; the lower end of the vertical pipe 14 is rotatably installed at the center of the top surface of the square shell 1; the U-shaped clamping seat 15 is fixedly arranged on the upper end part of the vertical pipe 14; a through hole is formed in the clamping plate on one side of the U-shaped clamping seat 15, and a locking threaded hole is formed in the clamping plate on the other side; the end part of the screw rod of the locking bolt 16 passes through the through hole and then is screwed on the locking threaded hole; the opposite inner side surfaces of the clamping plates at the two sides of the U-shaped clamping seat 15 are respectively and rotatably provided with a clamping support seat 17 through a rotating pin 21, and the opposite inner side surfaces of the two clamping support seats 17 are respectively provided with an arc-shaped clamping groove 18; the extension pipe 19 is clamped between the two arc-shaped clamping grooves 18; the middle part of the strip-shaped mounting plate 22 is fixedly arranged on the end part of the extension pipe 19; two ends of the strip-shaped bending plate 23 are respectively and fixedly arranged on two ends of the strip-shaped mounting plate 22, and an angle adjusting strip-shaped hole is formed in the plate surface of the strip-shaped bending plate 23 along the length direction of the plate surface; the ultraviolet sensor 25 is fixedly arranged on the top side surface of the sensor mounting seat 24, and the bottom side surface of the sensor mounting seat 24 is provided with an arc groove 10; a metal sleeve 13 is arranged in the arc groove 10, and a positioning locking external thread is arranged on the outer wall of the metal sleeve 13; one side of the inner shim plate 11 is provided with an arc convex surface, and a center circular hole is arranged in the center of the plate surface of the inner shim plate 11 in a penetrating manner; the metal sleeve 13 sequentially penetrates through the angle adjusting strip-shaped hole and the central circular hole, the arc groove 10 is attached to the outer side plate surface of the strip-shaped bending plate 23, and the arc convex surface is attached to the inner side plate surface of the strip-shaped bending plate 23; the positioning locking nut 12 is screwed on the positioning locking external thread and extrudes the inner backing plate 11; an electric connection cable 20 of the ultraviolet sensor 25 sequentially penetrates through the bottom side surface of the sensor mounting seat 24, the metal sleeve 13, the strip-shaped mounting plate 22, the extension pipe 19, the U-shaped clamping seat 15, the vertical pipe 14 and the square shell 1 and then enters the square shell 1. The sensor mounting head structure formed by the strip mounting plate 22, the strip bending plate 23, the inner side base plate 11, the metal sleeve 13, the positioning locking nut 12 and the sensor mounting seat 24 can be used for conveniently adjusting the detection orientation angle of the ultraviolet sensor 25 and aligning to-be-detected devices in the switch cabinet; the use of two rotatably mounted clamping abutments 17 can facilitate adjustment of the clamping position and swing height adjustment of the extension pipe 19.
Further, a strip-shaped outlet notch 27 is formed in the pipe wall of the extension pipe 19 along the length direction of the extension pipe; the electrical connection cable 20 in the extension tube 19 extends from the strip outlet slot 27 through the U-shaped clamping holder 15 into the vertical tube 14. The strip-shaped wire outlet slot 27 can facilitate the wire outlet of the electric connection cable 20, and also can lead the electric connection cable 20 to be led out from the U-shaped clamping seat 15 when the clamping position of the extension pipe 19 is adjusted.
Further, a metal mesh shielding layer 28 is embedded in the pipe wall of each of the extension pipe 19 and the vertical pipe 14. The metal mesh shielding layer 28 can be used for carrying out interference shielding on the electric connection cable 20 penetrating through the metal mesh shielding layer, so that the stability and the reliability of the sensing signal are ensured.
In the ultraviolet pulse sensing node, a microprocessor is composed of the existing microcontroller and a peripheral circuit thereof, the microcontroller is based on 16/32 bit ARM7 TDMI-S, the microcontroller is provided with 128kB which is an on-chip Flash memory, and the protocol stack of a complete version can be sufficiently accommodated without expanding the memory; the wireless communication module comprises an antenna and a radio frequency front-end transceiver consisting of a chip CC2591, a power amplifier for transmitting and a low noise amplifier for receiving are integrated in the chip CC2591, an IEEE802.15.4 communication protocol standard is selected, automatic networking can be performed, the working frequency band is 2405 MHz-2480 MHz, the data transmission rate is 250Kbps, the communication range is 300-450 meters, the performance is high, the power consumption is low, the cost is low, and a single network can accommodate at most 30 nodes; the ultraviolet sensor 25 adopts the existing ultraviolet photosensitive tube and is used for sensing ultraviolet light generated by partial discharge in the switch cabinet, a pulse signal is output by photoelectric effect, then an A/D acquisition circuit acquires the pulse signal, and the microprocessor compares the acquired pulse signal with a preset threshold value to obtain the number of pulses, so that the intensity of the number of pulses is analyzed to judge the intensity of the partial discharge; the A/D acquisition circuit adopts the existing acquisition circuit and consists of an A/D acquisition chip and a peripheral circuit thereof; the power module adopts the existing voltage stabilizing circuit and is used for respectively supplying power to the microprocessor, the wireless communication module, the ultraviolet sensor 25 and the A/D acquisition circuit.
When the ultraviolet pulse sensing node is installed and used, the insulating plate 4 is selectively installed on the vertical inner wall or the bottom inner wall of the switch cabinet according to the internal installation environment of the switch cabinet; the insertion rods 8 are inserted into the corresponding fixed mounting sleeves 2 and are locked and fixed through the positioning bolts 7; after the plug-in rod 8 is fixed, the axial clamping position of the extension pipe 19 is adjusted according to the position of a device to be detected, the lifting height of the end part of the extension pipe 19 is adjusted, and then the extension pipe 19 is fixed by rotating the locking bolt 16 through the two clamping supports 17; then loosening the positioning locking nut 12, adjusting the orientation angle of the ultraviolet sensor 25 to point to the device to be measured, and then tightening the positioning locking nut 12 for positioning; after the power module supplies power, the microprocessor collects sensing data of the ultraviolet sensor 25 through the A/D collection circuit, the microprocessor compares the collected pulse signals with a preset threshold value to obtain the number of pulses, so that the intensity of partial discharge is judged by analyzing the intensity of the number of pulses, networking communication is performed through the wireless communication module, the collected data is uploaded to an upper computer, and the upper computer can conveniently monitor the intensity of remote discharge.
As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. An ultraviolet pulse sensing node, comprising: comprises a square shell (1), a mounting bracket, a sensing bracket and an ultraviolet sensor (25);
a power module, a microprocessor, an A/D acquisition circuit and a wireless communication module are arranged in the square shell (1); the mounting bracket comprises an insertion rod (8), a mounting plate (3), an insulating plate (4) and a length positioning bolt (7); a fixed mounting sleeve (2) is vertically arranged at the center of the bottom of the square shell (1) and the center of one vertical side; the pipe wall at the pipe orifice of the two fixedly installed sleeves (2) is provided with a locking threaded hole (6); the mounting plate (3) is fixedly arranged in the middle of the insulating plate (4), and the four top corners of the insulating plate (4) are provided with fixed mounting holes (5); one end of the plug-in rod (8) is inserted into one of the fixed mounting sleeves (2), and the other end is vertically and fixedly mounted in the middle of the mounting plate (3); a guide sliding chute (9) is arranged on the rod wall of the insertion rod (8) along the length direction; the length positioning bolt (7) is screwed in a locking threaded hole (6) at the pipe orifice of the fixed mounting sleeve (2) inserted with the insertion rod (8), and the end part of the screw rod of the length positioning bolt (7) is pressed on the bottom of the guide chute (9);
the ultraviolet sensor (25) is installed on the top of the square shell (1) through a sensing bracket, and an electric connection cable (20) of the ultraviolet sensor (25) extends into the square shell (1); the microprocessor is electrically connected with the output end of the A/D acquisition circuit, and the input end of the A/D acquisition circuit is electrically connected with the ultraviolet sensor (25) through an electric connection cable (20); the power supply module supplies power to the ultraviolet sensor (25) through the electric connection cable (20); the wireless communication module is electrically connected with the microprocessor; the power module supplies power for the microprocessor, the A/D acquisition circuit and the wireless communication module respectively.
2. The ultraviolet pulse sensing node of claim 1, wherein: the sensing support comprises a vertical pipe (14), a U-shaped clamping seat (15), an extension pipe (19), a locking bolt (16), a strip-shaped mounting plate (22), a strip-shaped bending plate (23), an inner side base plate (11), a positioning locking nut (12) and a sensor mounting seat (24); the lower end of the vertical pipe (14) is rotatably arranged at the center of the top surface of the square shell (1); the U-shaped clamping seat (15) is fixedly arranged on the upper end part of the vertical pipe (14); a through hole is formed in the clamping plate on one side of the U-shaped clamping seat (15), and a locking threaded hole is formed in the clamping plate on the other side; the end part of a screw rod of the locking bolt (16) passes through the through hole and then is screwed on the locking threaded hole; the opposite inner side surfaces of the clamping plates on the two sides of the U-shaped clamping seat (15) are respectively and rotatably provided with a clamping support (17) through a rotating pin shaft (21), and the opposite inner side surfaces of the two clamping supports (17) are respectively provided with an arc-shaped clamping groove (18); the extension pipe (19) is clamped and installed between the two arc-shaped clamping grooves (18); the middle part of the strip-shaped mounting plate (22) is fixedly arranged on the end part of the extension pipe (19); two ends of the strip-shaped bending plate (23) are respectively and fixedly arranged on two ends of the strip-shaped mounting plate (22), and an angle adjusting strip-shaped hole is formed in the plate surface of the strip-shaped bending plate (23) along the length direction of the plate surface; the ultraviolet sensor (25) is fixedly arranged on the top side surface of the sensor mounting seat (24), and an arc groove (10) is arranged on the bottom side surface of the sensor mounting seat (24); a metal sleeve (13) is arranged in the arc groove (10), and a positioning locking external thread is arranged on the outer wall of the metal sleeve (13); one side plate surface of the inner side backing plate (11) is provided with an arc convex surface, and a center round hole is arranged in the center of the plate surface of the inner side backing plate (11) in a penetrating manner; the metal sleeve (13) penetrates through the angle adjusting strip-shaped hole and the central circular hole in sequence, the arc groove (10) is attached to the outer side plate surface of the strip-shaped bending plate (23), and the arc convex surface is attached to the inner side plate surface of the strip-shaped bending plate (23); the positioning locking nut (12) is screwed on the positioning locking external thread and extrudes the inner side backing plate (11); an electric connection cable (20) of the ultraviolet sensor (25) penetrates through the bottom side face of the sensor mounting seat (24), the metal sleeve (13), the strip-shaped mounting plate (22), the extension pipe (19), the U-shaped clamping seat (15), the vertical pipe (14) and the square shell (1) in sequence and then enters the square shell (1).
3. The ultraviolet pulse sensing node of claim 2, wherein: a strip-shaped outlet notch (27) is arranged on the pipe wall of the extension pipe (19) along the length direction; an electric connection cable (20) in the extension pipe (19) extends out of the strip-shaped wire outlet notch (27) and then penetrates through the U-shaped clamping seat (15) to enter the vertical pipe (14).
4. The ultraviolet pulse sensing node of claim 2, wherein: and metal mesh shielding layers (28) are embedded into the pipe walls of the extension pipe (19) and the vertical pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020447690.6U CN212083613U (en) | 2020-03-31 | 2020-03-31 | Ultraviolet pulse sensing node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020447690.6U CN212083613U (en) | 2020-03-31 | 2020-03-31 | Ultraviolet pulse sensing node |
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| CN212083613U true CN212083613U (en) | 2020-12-04 |
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| CN202020447690.6U Active CN212083613U (en) | 2020-03-31 | 2020-03-31 | Ultraviolet pulse sensing node |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115407169A (en) * | 2022-10-28 | 2022-11-29 | 光子(深圳)精密科技有限公司 | Optical sensor and system for detecting switch cabinet flash arc |
-
2020
- 2020-03-31 CN CN202020447690.6U patent/CN212083613U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115407169A (en) * | 2022-10-28 | 2022-11-29 | 光子(深圳)精密科技有限公司 | Optical sensor and system for detecting switch cabinet flash arc |
| CN115407169B (en) * | 2022-10-28 | 2023-02-10 | 光子(深圳)精密科技有限公司 | Optical sensor and system for detecting switch cabinet flash arc |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A UV pulse sensing node Granted publication date: 20201204 Pledgee: Bank of China Limited Nanjing Jiangbei New Area Branch Pledgor: Nanjing ximusheng Technology Co.,Ltd. Registration number: Y2024980027159 |