CN211046192U - Medium-pressure gas insulation cabinet - Google Patents
Medium-pressure gas insulation cabinet Download PDFInfo
- Publication number
- CN211046192U CN211046192U CN201922381675.6U CN201922381675U CN211046192U CN 211046192 U CN211046192 U CN 211046192U CN 201922381675 U CN201922381675 U CN 201922381675U CN 211046192 U CN211046192 U CN 211046192U
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- cabinet body
- cabinet
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- spring
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- 238000009413 insulation Methods 0.000 title description 3
- 238000007789 sealing Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 239000002826 coolant Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 13
- 239000000110 cooling liquid Substances 0.000 description 9
- 229920003266 Leaf® Polymers 0.000 description 7
- 229910018503 SF6 Inorganic materials 0.000 description 7
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 7
- 229960000909 sulfur hexafluoride Drugs 0.000 description 7
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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Abstract
The utility model discloses a medium-pressure gas insulated cabinet, including the cabinet body, inlet wire post and outlet post, all be provided with the sealing strip around the internal portion of cabinet, and one side of the internal portion bottom of cabinet installs the pump, the internal portion of cabinet of pump top transversely installs the diaphragm, and gasbag top intermediate position department installs the gas vent that runs through the diaphragm top, the internal portion of cabinet transversely installs the wiring board near the intermediate position department of fixed case one side, and the inside upper end of being close to fixed case one side installs load device, the mutual-inductor is installed to the internal portion upper end of load device one side, the lower extreme that the cabinet body is close to load device one side installs the inlet wire post, and the upper end that the cabinet body kept away from load device one side installs the outlet post. The utility model discloses a condenser pipe has been laid to the internal portion of cabinet, and the mode that utilizes the coolant liquid comes the temperature that produces for the internal electron device of cabinet to dispel the heat fast, the normal work of the electron device of being convenient for.
Description
Technical Field
The utility model relates to an insulated cabinet technical field specifically is a medium-voltage gas insulated cabinet.
Background
The medium-voltage gas insulated cabinet is suitable for a power system with large current of 40.5kv, and is characterized in that power is transmitted to the switch cabinet through a cable, then high-voltage current is processed and is supplied to people for use, and along with the development of science and technology, the requirements of people on power supply stability and reliability are gradually improved, but the existing medium-voltage gas insulated cabinet has many problems or defects.
First, the conventional medium-pressure gas insulated cabinet has no cooling function, and heat generated by electronic devices in the insulated cabinet cannot be dissipated well, which easily causes overheating of the electronic devices.
Second, traditional medium-pressure gas insulated cabinet does not have the wiring module of being convenient for, and the line in the insulated cabinet is put at will, causes the incident easily.
Thirdly, the traditional medium-pressure gas insulated cabinet does not ensure a constant-pressure structure of gas in the insulated cabinet, and the weather temperature difference may cause the gas pressure in the insulated cabinet to change, thereby reducing the service life of electronic devices.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a medium pressure gas insulated cabinet to the heat that the electron device who proposes in the solution above-mentioned background art produced can not fine effluvium, be not convenient for the wiring and can not guarantee the problem of the interior gas pressure constant voltage of insulated cabinet.
In order to achieve the above object, the utility model provides a following technical scheme: a medium-pressure gas insulated cabinet comprises a cabinet body, a wire inlet column and a wire outlet column, wherein sealing strips are arranged on the periphery of the interior of the cabinet body, an inflator pump is arranged on one side of the bottom end of the interior of the cabinet body, a transverse plate is transversely arranged on the interior of the cabinet body above the inflator pump, a gas outlet is formed in one side, close to the inflator pump, of the transverse plate, the bottom end of the gas outlet is communicated with the output end of the inflator pump through a guide pipe, a fixed box is arranged on one side, far away from the gas outlet, of the bottom end of the transverse plate, an air bag is arranged inside the fixed box, third springs are arranged on two sides of the interior of the air bag, a gas outlet penetrating through the top end of the transverse plate is arranged in the middle position of the top end of the air bag, a wiring board is transversely arranged, the lower extreme that the cabinet body is close to load equipment one side is installed the inlet wire post, and the upper end that the cabinet body kept away from load equipment one side is installed the outlet wire post.
Preferably, one side of the inside of the exhaust port is transversely hinged with a baffle, a second spring is installed on one side of the inside of the exhaust port below the baffle, and the other end of the second spring is welded with one side of the bottom end of the baffle.
Preferably, the intermediate position department of load equipment and mutual-inductor bottom all installs first leading electrical pillar, and the intermediate position department of first leading electrical pillar bottom all installs the melting point, the internal portion of cabinet under first leading electrical pillar all is provided with the second and leads electrical pillar, and the both sides on the electrically conductive capital end of second all articulate has the conducting rod to the other end of conducting rod all welds with melting point bottom one side, first spring is all installed to the both sides of the electrically conductive capital end intermediate position department of second, and the one end that first spring is close to the conducting rod all welds with conducting rod one side lower extreme.
Preferably, the inside front of wiring board and the intermediate position department at the back transversely install the slide bar, and the outside of slide bar evenly is provided with the slider to the slide bar outside between the slider all twines has the fourth spring, all transversely install four first fly leafs in one side that is close to the incoming line post between the slider, and transversely install the second fly leaf in one side that is close to the outgoing line post between the slider, the second fly leaf is kept away from first fly leaf one side intermediate position department and transversely installs the threaded rod that runs through the wiring board lateral wall.
Preferably, rubber pads are arranged at the middle positions of the two sides of the first movable plate and one side of the second movable plate close to the first movable plate, and insulating pads are arranged on the surfaces of the rubber pads.
Preferably, the cooler bin is installed to the intermediate position on cabinet body top, and the water pump is installed on the cabinet body top of cooler bin one side to the input of water pump passes through pipe and cooler bin one side lower extreme intercommunication, the internal portion winding of cabinet has the condenser pipe, and the condenser pipe is "U" tubular construction, the one end of condenser pipe is passed through pipe and cooler bin opposite side lower extreme intercommunication, and the other end of condenser pipe passes through pipe and water pump output end intercommunication.
Compared with the prior art, the beneficial effects of the utility model are that: this medium-pressure gas-insulated cabinet is rational in infrastructure, has following advantage:
(1) the condenser pipe is laid on the inner wall of the cabinet body, water pump and cooling box are installed on the top end of the cabinet body, in the normal working process of the device, the heat generated by the electronic device is gathered in the cabinet body, at the moment, the water pump is started, the cooling liquid in the cooling box is pumped into the condenser pipe, and the structure of a U-shaped pipe is adopted, so that the flow speed of the cooling liquid is slower, the heat exchange efficiency is higher, no dead angle is formed, the temperature in the cabinet body can be quickly reduced, the temperature environment for normal work of the electronic device is ensured, the cooling liquid after heat exchange is naturally cooled after flowing into the cooling box, and the device is convenient to.
(2) The utility model discloses a cabinet, including cabinet body, the wiring board is transversely provided with through one side at cabinet body inside, pass the wiring board with the wire, and the rotating threaded rod, drive the removal of second fly leaf, utilize the slider to slide on the slide bar simultaneously, compress the fourth spring, when making the second fly leaf remove, drive the removal of first fly leaf, later utilize the rubber pad to fix the wire, prevent that the wire is put in a jumble, cause the difficult effluvium of heat, cause the incident easily, and the elasticity and the rubber pad of fourth spring, it is excessive to prevent to extrude, cause wire surface damage.
(3) The fixed case is installed on one side of the bottom end of the transverse plate, the air bag is arranged inside the fixed case, when the temperature of the air in the day changes greatly, the gas pressure in the cabinet body changes, no matter whether the pressure is too high or too low, the electronic device in the cabinet body can be influenced, when the pressure in the cabinet body is too high, the baffle can deflect downwards to compress the second spring, then, redundant sulfur hexafluoride gas enters the air bag, the pressure in the air bag becomes large, when the pressure in the cabinet body becomes small, the baffle deflects upwards to stretch the second spring under the action of the elastic force of the third spring and the pressure of the air bag, and then the redundant sulfur hexafluoride gas in the air bag enters the cabinet body, so that the gas pressure in the cabinet body is constant, the weather temperature change is prevented from being large, the pressure in the cabinet body is unstable, and the electronic device in the.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at B according to the present invention;
fig. 4 is a schematic side view of the cross-sectional structure of the present invention;
fig. 5 is a schematic diagram of a wiring board of the present invention showing an enlarged structure in plan view.
In the figure: 1. a water pump; 2. a cooling tank; 3. a cabinet body; 4. a sealing strip; 5. a load device; 6. a wiring board; 7. a wire inlet column; 8. an inflator pump; 9. an air outlet; 10. a condenser tube; 11. a threaded rod; 12. a transformer; 13. an outlet post; 14. a transverse plate; 15. a first conductive post; 16. a conductive rod; 17. a second conductive post; 18. a first spring; 19. melting point; 20. an exhaust port; 21. a second spring; 22. an air bag; 23. a fixed box; 24. a third spring; 25. a baffle plate; 26. a fourth spring; 27. a slider; 28. a slide bar; 29. a rubber pad; 30. a first movable plate; 31. a second movable plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides an embodiment: a medium-pressure gas insulation cabinet comprises a cabinet body 3, a wire inlet column 7 and a wire outlet column 13, wherein sealing strips 4 are arranged on the periphery of the inside of the cabinet body 3, an inflator pump 8 is arranged on one side of the bottom end of the inside of the cabinet body 3, the model of the inflator pump 8 can be PCF5015N, a transverse plate 14 is transversely arranged inside the cabinet body 3 above the inflator pump 8, an air outlet 9 is formed in one side, close to the inflator pump 8, of the transverse plate 14, the bottom end of the air outlet 9 is communicated with the output end of the inflator pump 8 through a guide pipe, a fixing box 23 is arranged on one side, far away from the air outlet 9, of the bottom end of the transverse plate 14, an air bag 22 is arranged inside the fixing box 23, third springs 24 are arranged on two sides of the;
a baffle 25 is transversely hinged to one side inside the exhaust port 20, a second spring 21 is mounted on one side inside the exhaust port 20 below the baffle 25, and the other end of the second spring 21 is welded to one side of the bottom end of the baffle 25;
when the pressure in the cabinet body 3 is too high, the baffle 25 deflects downwards to compress the second spring 21, then the redundant sulfur hexafluoride gas enters the air bag 22, so that the pressure in the air bag 22 is increased, when the pressure in the cabinet body 3 is reduced, the baffle 25 deflects upwards to stretch the second spring 21 under the action of the elastic force of the third spring 24 and the pressure of the air bag 22, and then the redundant sulfur hexafluoride gas in the air bag 22 enters the cabinet body 3, so that the constant pressure of the gas in the cabinet body 3 is realized;
a wiring board 6 is transversely arranged at the middle position of one side of the cabinet body 3 close to the fixed box 23;
sliding rods 28 are transversely installed at the middle positions of the front surface and the back surface inside the wiring board 6, sliding blocks 27 are uniformly arranged on the outer sides of the sliding rods 28, fourth springs 26 are wound on the outer sides of the sliding rods 28 between the sliding blocks 27, four first movable plates 30 are transversely installed on one sides, close to the wire inlet column 7, between the sliding blocks 27, second movable plates 31 are transversely installed on one sides, close to the wire outlet column 13, between the sliding blocks 27, and threaded rods 11 penetrating through the side wall of the wiring board 6 are transversely installed at the middle positions, far away from the first movable plates 30, of the second movable plates 31;
the lead passes through the wiring board 6, the threaded rod 11 is rotated to drive the second movable plate 31 to move, meanwhile, the sliding block 27 slides on the sliding rod 28 to compress the fourth spring 26, so that the second movable plate 31 drives the first movable plate 30 to move when moving, and then the lead is fixed by the rubber pad 29, so that the lead is prevented from being placed in a mess, heat is not easy to dissipate, and safety accidents are easy to cause;
the arc-shaped rubber pad 29 ensures that the wire fixing effect is better, and the elasticity of the fourth spring 26 and the rubber pad 29 prevent the surface of the wire from being damaged due to excessive extrusion;
the upper end of one side of the inner part close to the fixed box 23 is provided with a load device 5, and the upper end of the inner part of the cabinet body 3 at one side of the load device 5 is provided with a mutual inductor 12;
the middle positions of the bottom ends of the load equipment 5 and the mutual inductor 12 are both provided with a first conductive column 15, the middle position of the bottom end of the first conductive column 15 is both provided with a melting point 19, the inside of the cabinet body 3 right below the first conductive column 15 is both provided with a second conductive column 17, both sides of the top end of the second conductive column 17 are both hinged with a conductive rod 16, the other end of the conductive rod 16 is both welded with one side of the bottom end of the melting point 19, both sides of the middle position of the top end of the second conductive column 17 are both provided with a first spring 18, and one end of the first spring 18 close to the conductive rod 16 is both welded with the lower end of;
when the device is in an accident, such as an over-high voltage, the melting point 19 is fused by the generated heat, and the conducting rod 16 is separated from the melting point 19 under the action of the elastic force of the first spring 18, so that the conducting wire is disconnected from the load equipment 5 and the mutual inductor 12, and the accident is prevented from being further serious, and a larger safety accident is caused;
a cooling box 2 is arranged in the middle of the top end of the cabinet body 3, a water pump 1 is arranged at the top end of the cabinet body 3 on one side of the cooling box 2, the type of the water pump 1 can be ISGD, the input end of the water pump 1 is communicated with the lower end of one side of the cooling box 2 through a guide pipe, a condensation pipe 10 is wound inside the cabinet body 3, the condensation pipe 10 is in a U-shaped pipe structure, one end of the condensation pipe 10 is communicated with the lower end of the other side of the cooling box 2 through a guide pipe, and the other end of the condensation pipe 10 is communicated with the output end;
in the normal working process of the device, heat generated by the electronic device is gathered in the cabinet body 3, at the moment, the water pump 1 is started to pump cooling liquid in the cooling box 2 into the condensing pipe 10, and the structure of the U-shaped pipe ensures that the flow rate of the cooling liquid is slower, the heat exchange efficiency is higher, no dead angle exists, the temperature in the cabinet body 3 can be quickly reduced, the temperature environment of normal working of the electronic device is ensured, and the cooling liquid after heat exchange is naturally cooled after flowing into the cooling box 2, so that the device is convenient to use for the next time;
the lower end of the cabinet body 3 close to one side of the load device 5 is provided with a wire inlet column 7, and the upper end of the cabinet body 3 far away from one side of the load device 5 is provided with a wire outlet column 13.
The working principle is as follows: when the electronic device is used, after the electronic device is placed in the cabinet body 3, the wire penetrates through the wiring board 6, the threaded rod 11 is rotated to drive the second movable plate 31 to move, meanwhile, the sliding block 27 slides on the sliding rod 28 to compress the fourth spring 26, so that the first movable plate 30 is driven to move when the second movable plate 31 moves, then the wire is fixed by the rubber pad 29, the wire is prevented from being placed in a mess, heat is not easy to dissipate, safety accidents are easy to cause, and meanwhile, the elasticity of the fourth spring 26 and the rubber pad 29 prevent the wire from being excessively extruded to cause surface damage of the wire;
then, one end of the lead is respectively fixed by a second conductive column 17, when an accident occurs, such as an over-high voltage, the generated heat can fuse the melting point 19, and the conductive rod 16 is separated from the melting point 19 under the action of the elastic force of the first spring 18, so that the lead is disconnected from the load equipment 5 and the mutual inductor 12, and the further serious accident is prevented, and a larger safety accident is caused;
after the cabinet door is closed, the incoming and outgoing lines are connected by using the incoming line column 7 and the outgoing line column 13, meanwhile, the incoming line column 7 and the outgoing line column 13 are welded with the cabinet body 3 to be integrated, the sealing performance of the device is improved, the inflator pump 8 is started, and quantitative sulfur hexafluoride gas is injected into the cabinet body 3, so that the normal work of electronic devices is ensured, and the influence of electric arcs generated in the work on the device is prevented;
in the normal working process of the device, heat generated by the electronic device is gathered in the cabinet body 3, at the moment, the water pump 1 is started to pump cooling liquid in the cooling box 2 into the condensing pipe 10, and the structure of the U-shaped pipe ensures that the flow rate of the cooling liquid is slower, the heat exchange efficiency is higher, no dead angle exists, the temperature in the cabinet body 3 can be quickly reduced, the temperature environment of normal working of the electronic device is ensured, and the cooling liquid after heat exchange is naturally cooled after flowing into the cooling box 2, so that the device is convenient to use for the next time;
when the temperature of the weather is greatly changed, the pressure of the gas in the cabinet body 3 is changed, no matter the pressure is too high or too low, the electronic devices in the cabinet body 3 are affected, when the pressure in the cabinet body 3 is too high, the baffle 25 deflects downwards to compress the second spring 21, then the redundant sulfur hexafluoride gas enters the air bag 22, the pressure in the air bag 22 is increased, when the pressure in the cabinet body 3 is reduced, under the action of the elastic force of the third spring 24 and the pressure of the air bag 22, the baffle 25 deflects upwards to stretch the second spring 21, further the redundant sulfur hexafluoride gas in the air bag 22 enters the cabinet body 3, the constant pressure of the gas in the cabinet body 3 is realized, the condition that the temperature change is large, the pressure in the cabinet body 3 is unstable, and the electronic device in the cabinet body 3 is normally used.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a medium-voltage gas insulated cabinet, includes the cabinet body (3), inlet wire post (7) and outlet wire post (13), its characterized in that: the cabinet is characterized in that sealing strips (4) are arranged on the periphery of the inside of the cabinet body (3), an inflator pump (8) is installed on one side of the bottom end of the inside of the cabinet body (3), a transverse plate (14) is transversely installed inside the cabinet body (3) above the inflator pump (8), a gas outlet (9) is formed in one side, close to the inflator pump (8), of the transverse plate (14), the bottom end of the gas outlet (9) is communicated with the output end of the inflator pump (8) through a guide pipe, a fixing box (23) is installed on one side, far away from the gas outlet (9), of the bottom end of the transverse plate (14), a gas bag (22) is arranged inside the fixing box (23), third springs (24) are installed on two sides of the inside of the gas bag (22), a gas outlet (20) penetrating through the top end of the transverse plate (14) is installed at the middle position of the top end of the, and inside upper end that is close to fixed case (23) one side installs load equipment (5), mutual-inductor (12) are installed to the inside upper end of the cabinet body (3) of load equipment (5) one side, the lower extreme that the cabinet body (3) is close to load equipment (5) one side is installed inlet wire post (7), and the upper end that load equipment (5) one side was kept away from to the cabinet body (3) installs outlet wire post (13).
2. A medium voltage gas insulated cabinet according to claim 1, characterized in that: the inside one side of gas vent (20) transversely articulates there is baffle (25), and inside one side of gas vent (20) of baffle (25) below installs second spring (21) to the welding of second spring (21) other end and baffle (25) bottom one side.
3. A medium voltage gas insulated cabinet according to claim 1, characterized in that: load equipment (5) and the intermediate position department of mutual-inductor (12) bottom all install first leading electrical pillar (15), and the intermediate position department of first leading electrical pillar (15) bottom all installs melting point (19), cabinet body (3) inside under first leading electrical pillar (15) all is provided with the second and leads electrical pillar (17), and the both sides that the second led electrical pillar (17) top all articulate has conducting rod (16) to the other end of conducting rod (16) all welds with melting point (19) bottom one side, first spring (18) are all installed to the both sides that the second led electrical pillar (17) top intermediate position department, and the one end that first spring (18) are close to conducting rod (16) all welds with conducting rod (16) one side lower extreme.
4. A medium voltage gas insulated cabinet according to claim 1, characterized in that: slide bar (28) are transversely installed to the inside intermediate position department of front and the back of wiring board (6), and the outside of slide bar (28) evenly is provided with slider (27) to slide bar (28) outside between slider (27) all twines fourth spring (26), four first fly leaf (30) are all transversely installed to the one side that is close to incoming line post (7) between slider (27), and transversely install second fly leaf (31) in the one side that is close to outgoing line post (13) between slider (27), threaded rod (11) that run through wiring board (6) lateral wall are transversely installed to first fly leaf (30) one side intermediate position department is kept away from in second fly leaf (31).
5. A medium voltage gas-insulated cabinet according to claim 4, characterized in that: rubber pads (29) are arranged at the middle positions of two sides of the first movable plate (30) and one side, close to the first movable plate (30), of the second movable plate (31), and insulating pads are arranged on the surfaces of the rubber pads (29).
6. A medium voltage gas insulated cabinet according to claim 1, characterized in that: cooler bin (2) are installed to the intermediate position on the cabinet body (3) top, and water pump (1) are installed on the cabinet body (3) top of cooler bin (2) one side to the input of water pump (1) passes through pipe and cooler bin (2) one side lower extreme intercommunication, the inside winding of the cabinet body (3) has condenser pipe (10), and condenser pipe (10) are "U" shaped tube structure, the one end of condenser pipe (10) is passed through pipe and cooler bin (2) opposite side lower extreme intercommunication, and the other end of condenser pipe (10) passes through pipe and water pump (1) output intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381675.6U CN211046192U (en) | 2019-12-26 | 2019-12-26 | Medium-pressure gas insulation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922381675.6U CN211046192U (en) | 2019-12-26 | 2019-12-26 | Medium-pressure gas insulation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211046192U true CN211046192U (en) | 2020-07-17 |
Family
ID=71533720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922381675.6U Expired - Fee Related CN211046192U (en) | 2019-12-26 | 2019-12-26 | Medium-pressure gas insulation cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211046192U (en) |
-
2019
- 2019-12-26 CN CN201922381675.6U patent/CN211046192U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 |