CN210722621U - Dustproof box-type transformer - Google Patents
Dustproof box-type transformer Download PDFInfo
- Publication number
- CN210722621U CN210722621U CN201921948466.9U CN201921948466U CN210722621U CN 210722621 U CN210722621 U CN 210722621U CN 201921948466 U CN201921948466 U CN 201921948466U CN 210722621 U CN210722621 U CN 210722621U
- Authority
- CN
- China
- Prior art keywords
- fixed connection
- install bin
- dust screen
- protective frame
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 claims abstract description 79
- 230000001681 protective effect Effects 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 26
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 230000000737 periodic effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 11
- 238000009434 installation Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Cleaning In General (AREA)
Abstract
The utility model relates to a box transformer technical field especially relates to a dustproof box transformer, become station, install bin, protective framework, dust screen, fan, displacement mechanism, clean brush board, direction basis, hang plate and top cap including the case, the right side that the case becomes the station and the fixed intercommunication in one side of install bin, the right side of install bin and protective framework's one side fixed connection, and install bin and protective framework are in the connected state, the dust screen around respectively with the protective framework right side fixed connection all around. The utility model discloses reached and made external dust be difficult to get into the purpose of case transformer substation inside and adhesion in the dust screen surface to reduce the existence volume of dust, shortened the periodic cleaning and the change cycle of dust screen, whole mode can go on automatically moreover, and the interval time of clearance at every turn has prolonged about eightfold about relatively, greatly reduced operating personnel's intensity of labour, saved a large amount of operating time.
Description
Technical Field
The utility model relates to a box transformer technical field especially relates to a dustproof box transformer.
Background
The box-type transformer is not only a transformer, but also a small-sized transformer substation, belongs to a power distribution station, and directly provides power for users, and comprises a high-voltage chamber, a transformer chamber and a low-voltage chamber; the high-voltage chamber is a power supply side, is generally 35 kilovolts or 10 kilovolts of incoming lines, and comprises a high-voltage busbar, a circuit breaker or a fuse, a voltage transformer, a lightning arrester and the like.
In order to discharge heat generated during the operation of the box-type transformer out of the box body, the side wall of the box-type transformer is provided with the vent holes, but the vent holes are communicated with the outside, so that external dust can enter the box body through the vent holes while the vent holes play a role in heat dissipation, the dust can be settled on the electric elements in the box body, and the normal heat dissipation of the electric elements can be influenced after a long time. The ventilation holes are required to meet the heat dissipation requirements while avoiding the ingress of dust. So during its use, need prevent that external dust from entering into the inside of transformer, meanwhile, need guarantee the heat dissipation of transformer, so need use the dust screen at the outer wall of transformer, dismantle when wasing the dust screen among the prior art, the transformer just can't realize dustproof, so outside a large amount of dust can enter into the inside of transformer at this moment, cause its inside electronic component's damage easily, so prior art can't satisfy people's use needs.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a dustproof box transformer has reached and has made external dust be difficult to get into the box and become the purpose of station inside and adhesion in the dust screen surface to reduce the existence volume of dust, shortened the periodic cleaning and the change cycle of dust screen, whole mode can go on automatically moreover, and the interval time of clearance at every turn has prolonged about eightfold about relatively in the past, greatly reduced operating personnel's intensity of labour, saved a large amount of operating time.
(II) technical scheme
In order to realize the technical problem, the utility model provides a following technical scheme: the utility model provides a dustproof box transformer, becomes station, install bin, protective frame, dust screen, fan, displacement mechanism, clean brush board, direction basis, hang plate and top cap including the case, the right side that the case becomes the station is with the fixed intercommunication in one side of install bin, the right side of install bin and one side fixed connection of protective frame, and install bin and protective frame are in the feed through state, the dust screen around respectively with the fixed connection all around on protective frame right side, the left intermediate position fixed connection of support and install bin inner wall is passed through to one side of fan, displacement mechanism is located the inside right side position of install bin, displacement mechanism's free end and the left side fixed connection of clean brush board, the brush hair part on clean brush board right side contacts with the left side of dust screen.
Further, displacement mechanism includes servo motor, ball screw, ball nut, movable rod, drum, slider and expanding spring, one side of servo motor is owing to the right side fixed connection of install bin bottom intermediate position, ball screw's both ends rotate with the top and the bottom position of install bin inner wall respectively and are connected, servo motor's output and ball screw's one end transmission are connected, ball nut is connected with ball screw's surface transmission, ball nut's the right side and the one end fixed connection of movable rod.
Further, the other end of movable rod extends to the inside of drum, the quantity of slider is two, two the lateral wall of slider all with the inside wall sliding connection of drum, the other end of movable rod and the left side fixed connection of slider, the slider just is located the right side of drum and another the one end fixed connection of movable rod, and the other end of movable rod and one side amount fixed connection of cleaning brush board, expanding spring is located the inside of drum, expanding spring's both ends respectively with two one side fixed connection that the slider is relative.
Further, the right side of protection frame sets up for the tilt state, the tilt angle of protection frame right side bottom is thirty degree angle contained angles for the perpendicular line, the dust screen is the same state with protection frame's right side.
Furthermore, the guide foundation is located at the bottom of the inner wall of the protective frame, the section of the guide foundation is V-shaped, through holes are formed in the middle of the bottom of the protective frame, and the through holes are uniformly distributed in a rectangular array mode.
Further, the bottom on install bin right side and one side fixed connection of hang plate, the top of hang plate is located the below of protective frame bottom, the hang plate is the slope setting of sixty degrees contained angle for the water flat line.
Furthermore, the top of the box transformer substation is fixedly connected with the bottom of the top cover, and a rain gutter is arranged at the top of the top cover.
(III) advantageous effects
The utility model provides a dustproof box transformer possesses following beneficial effect:
1. the utility model sets the protection frame and the dust screen to be in the same inclined state, therefore, in the using process, the external dust is separated by the dust screen in the inclined state, the wind direction of the heat discharged from the interior of the box transformer station can be changed, the reverse blowing of the fan is matched, the original straight wind direction is changed into the wind direction which is inclined upwards, thereby the entering amount of the external dust can be reduced, simultaneously, in the process of the dust entering and adhering on the dust screen, the dust is difficult to adhere relative to the inclined dust screen surface under the action of the self gravity, therefore, most of the dust can be discharged by dropping through the through hole, and simultaneously, the dust on the dust screen can be automatically cleaned by matching with the regular brushing cleaning of the cleaning brush plate, thereby the existence amount of the dust is reduced, the regular cleaning and replacing period of the dust screen is shortened, and the whole mode can be automatically carried out, the cleaning interval time is prolonged by about eight times compared with the prior art, the labor intensity of operators is greatly reduced, and a large amount of working time is saved.
2. The utility model discloses because displacement mechanism's setting, running state through control servo motor, can make ball screw rotate, ball nut is for its linear motion about presenting simultaneously, consequently, the cooperation movable rod drives clean brush board and cleans the dust on the dust screen, at this in-process, two movable rods are in telescopic state for the drum, consequently, can carry out automatic flexible according to the tilt state of dust screen, cooperation expanding spring's elasticity performance, the brush hair part that can make clean brush board contacts with the dust screen all the time, consequently, the thorough clean effect of clean brush board to dust on the dust screen has been guaranteed, consequently, the clean degree of dust screen inner surface has been improved, the direct phenomenon of getting into of dust takes place, thereby the inside environment of case transformer substation has been guaranteed.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the structural mounting box of the present invention;
fig. 3 is an enlarged view of a portion a in the structure diagram of the present invention 2.
In the figure: 1. a box transformer substation; 2. installing a box; 3. a protective frame; 4. a dust screen; 5. a fan; 6. a displacement mechanism; 7. cleaning the brush plate; 8. a guide base; 9. a through hole; 10. an inclined plate; 11. a top cover; 12. a rain gutter; 61. a servo motor; 62. a ball screw; 63. a ball nut; 64. a movable rod; 65. a cylinder; 66. a slider; 67. a telescoping spring.
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. 1-3, the present invention provides a technical solution: a dustproof box type transformer comprises a box transformer station 1, an installation box 2, a protective framework 3, a dustproof net 4, a fan 5, a displacement mechanism 6, a cleaning brush plate 7, a guide base 8, an inclined plate 10 and a top cover 11, wherein the right side of the box transformer station 1 is fixedly communicated with one side of the installation box 2, the right side of the installation box 2 is fixedly connected with one side of the protective framework 3, the installation box 2 and the protective framework 3 are in a communicated state, the periphery of the dustproof net 4 is fixedly connected with the periphery of the right side of the protective framework 3 respectively, one side of the fan 5 is fixedly connected with the middle position of the left side of the inner wall of the installation box 2 through a support, the displacement mechanism 6 is positioned at the right side inside the installation box 2, the free end of the displacement mechanism 6 is fixedly connected with the left side of the cleaning brush plate 7, the brush part of the right side of the cleaning brush plate 7 is contacted with the left side of the dustproof net 4, therefore, in the using process, the external dust is blocked by the inclined dustproof net 4, the wind direction of heat discharged from the interior of the box transformer substation 1 can be changed, the wind direction is changed from the original straight wind direction to the inclined upward wind direction in cooperation with the reverse blowing of the fan 5, the entering amount of the external dust can be reduced, meanwhile, in the process of entering and adhering the dust to the dustproof net 4, the dust is difficult to adhere to the inclined dustproof net surface under the action of self gravity, most of the dust can fall and be discharged from the through holes 9, meanwhile, the dust on the dustproof net 4 can be automatically cleaned in cooperation with the regular brushing cleaning of the cleaning brush plate 7, the existence amount of the dust is reduced, the regular cleaning and replacing period of the dustproof net is shortened, the whole mode can be automatically carried out, the interval time of cleaning at each time is prolonged by about eight times compared with the prior art, greatly reducing the labor intensity of operators and saving a large amount of working time.
The displacement mechanism 6 comprises a servo motor 61, a ball screw 62, a ball nut 63, a movable rod 64, a cylinder 65, sliders 66 and a telescopic spring 67, wherein one side of the servo motor 61 is fixedly connected with the right side of the middle position of the bottom of the installation box 2, two ends of the ball screw 62 are respectively rotatably connected with the top and bottom positions of the inner wall of the installation box 2, the output end of the servo motor 61 is in transmission connection with one end of the ball screw 62, the ball nut 63 is in transmission connection with the outer surface of the ball screw 62, the right side of the ball nut 63 is fixedly connected with one end of the movable rod 64, the other end of the movable rod 64 extends into the cylinder 65, the number of the sliders 66 is two, the outer side walls of the two sliders 66 are both in sliding connection with the inner side wall of the cylinder 65, the other end of the movable rod 64 is fixedly connected with the left side of the slider 66, the slider 66, the other end of the movable rod 64 is fixedly connected with one side of the cleaning brush plate 7, the telescopic spring 67 is positioned in the cylinder 65, the two ends of the telescopic spring 67 are respectively fixedly connected with one side of the cylinder 65 opposite to the two sliding blocks 66, due to the arrangement of the displacement mechanism 6, the ball screw 62 can rotate by controlling the operation state of the servo motor 61, and the ball nut 63 moves up and down linearly relative to the displacement mechanism, so that the movable rod 64 is matched to drive the cleaning brush plate 7 to clean dust on the dust screen 4, in the process, the two movable rods 64 are in a telescopic state relative to the cylinder 65, so that the movable rods can automatically stretch and retract according to the inclination state of the dust screen 4, and the brush part of the cleaning brush plate 7 can always contact with the dust screen 4 by matching with the elastic performance of the telescopic spring 67, thereby ensuring the thorough cleaning effect of the cleaning brush plate 7 on the dust screen 4, therefore, the cleanness degree of the inner surface of the dustproof net 4 is improved, and the phenomenon that dust directly enters is avoided, so that the dust-free environment inside the box transformer substation 1 is ensured.
The working principle is as follows: in the using process, the external dust is blocked by the dust screen 4 in the inclined state, the wind direction of heat discharged from the interior of the box transformer station 1 can be changed, the wind direction is matched with the reverse blowing of the fan 5, the original linear wind direction is changed into the wind direction which is inclined upwards, so that the entering amount of the external dust can be reduced, meanwhile, in the process of dust entering and adhering to the dust screen 4, the dust is difficult to adhere to the inclined dust screen surface under the action of self gravity, so that most of the dust can fall and be discharged from the through hole 9, in the cleaning process, the operation state of the servo motor 61 is controlled, the ball screw 62 can rotate, the ball nut 63 is vertically linear motion relative to the ball nut, so that the movable rod 64 is matched to drive the cleaning brush plate 7 to clean the dust on the dust screen 4, in the process, two movable rods 64 are in the extending state for drum 65, consequently can stretch out and draw back automatically according to the tilt state of dust screen 4, cooperation expanding spring 67's elasticity performance, the brush hair part that can make cleaning brush board 7 contacts with dust screen 4 all the time, consequently, guaranteed the thorough clean effect of cleaning brush board 7 to dust on the dust screen 4, the regular brushing of cooperation cleaning brush board 7 is clean simultaneously, can carry out self-cleaning to the dust on the dust screen 4, thereby the existence volume of dust has been reduced, the regular washing and the change cycle of dust screen have been shortened.
The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, and the supply also belongs to the common general knowledge in this field, and the utility model discloses mainly used protects mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a dustproof box transformer, includes case transformer station (1), install bin (2), protective frame (3), dust screen (4), fan (5), displacement mechanism (6), clean brush board (7), direction basis (8), hang plate (10) and top cap (11), its characterized in that: the right side of case transformer substation (1) and the fixed intercommunication in one side of install bin (2), the right side of install bin (2) and one side fixed connection of protective frame (3), and install bin (2) and protective frame (3) are in the connected state, dust screen (4) all around respectively with the fixed connection all around on protective frame (3) right side, the left intermediate position fixed connection of support and install bin (2) inner wall is passed through to one side of fan (5), displacement mechanism (6) are located the inside right side position of install bin (2), the free end of displacement mechanism (6) and the left side fixed connection of clean brush board (7), the brush hair part on clean brush board (7) right side contacts with the left side of dust screen (4).
2. The dustproof box type transformer of claim 1, wherein: displacement mechanism (6) are including servo motor (61), ball screw (62), ball nut (63), movable rod (64), drum (65), slider (66) and expanding spring (67), one side of servo motor (61) is because the right side fixed connection of install bin (2) bottom intermediate position, the both ends of ball screw (62) rotate with the top and the bottom position of install bin (2) inner wall respectively and are connected, the output of servo motor (61) is connected with the one end transmission of ball screw (62), ball nut (63) are connected with the surface transmission of ball screw (62), the right side of ball nut (63) and the one end fixed connection of movable rod (64).
3. The dustproof box type transformer of claim 2, wherein: the other end of movable rod (64) extends to the inside of drum (65), the quantity of slider (66) is two, two the lateral wall of slider (66) all with the inside wall sliding connection of drum (65), the other end of movable rod (64) and the left side fixed connection of slider (66), slider (66) and be located the right side and another of drum (65) the one end fixed connection of movable rod (64), and the other end of movable rod (64) and one side amount fixed connection of clean brush board (7), expanding spring (67) are located the inside of drum (65), the both ends of expanding spring (67) respectively with two the relative one side fixed connection of slider (66).
4. The dustproof box type transformer of claim 1, wherein: the right side of protective frame (3) sets up for the tilt state, the inclination of protective frame (3) right side bottom is thirty degree angle contained angles for the perpendicular line, dust screen (4) are the same state with the right side of protective frame (3).
5. The dustproof box type transformer of claim 1, wherein: the guide foundation (8) is located at the bottom of the inner wall of the protective frame (3), the cross section of the guide foundation (8) is V-shaped, through holes (9) are formed in the middle of the bottom of the protective frame (3), and the through holes (9) are uniformly distributed in a rectangular array mode.
6. The dustproof box type transformer of claim 1, wherein: the bottom on install bin (2) right side and one side fixed connection of hang plate (10), the top of hang plate (10) is located the below of protective frame (3) bottom, hang plate (10) are the slope setting of sixty degrees contained angle for the water flat line.
7. The dustproof box type transformer of claim 1, wherein: the top of the box transformer substation (1) is fixedly connected with the bottom of the top cover (11), and the top of the top cover (11) is provided with a rain gutter (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921948466.9U CN210722621U (en) | 2019-11-13 | 2019-11-13 | Dustproof box-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921948466.9U CN210722621U (en) | 2019-11-13 | 2019-11-13 | Dustproof box-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210722621U true CN210722621U (en) | 2020-06-09 |
Family
ID=70932318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921948466.9U Expired - Fee Related CN210722621U (en) | 2019-11-13 | 2019-11-13 | Dustproof box-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210722621U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112057964A (en) * | 2020-09-19 | 2020-12-11 | 深圳市中远通电源技术开发有限公司 | Dust removal device and method for communication equipment cabinet and communication equipment cabinet |
| CN112556191A (en) * | 2020-12-31 | 2021-03-26 | 江苏凯博斯防爆电加热器有限公司 | Mining safety-increasing electric heater and mounting method thereof |
| CN113345678A (en) * | 2021-06-07 | 2021-09-03 | 合肥市菲力克斯电子科技有限公司 | Dustproof protection mechanism of electronic transformer |
| CN115331525A (en) * | 2022-09-01 | 2022-11-11 | 烟台大学 | Automatic control theoretical simulation experiment device |
| CN121172581A (en) * | 2025-09-22 | 2025-12-19 | 陆牌电气科技有限公司 | Landscape type box transformer substation |
-
2019
- 2019-11-13 CN CN201921948466.9U patent/CN210722621U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112057964A (en) * | 2020-09-19 | 2020-12-11 | 深圳市中远通电源技术开发有限公司 | Dust removal device and method for communication equipment cabinet and communication equipment cabinet |
| CN112556191A (en) * | 2020-12-31 | 2021-03-26 | 江苏凯博斯防爆电加热器有限公司 | Mining safety-increasing electric heater and mounting method thereof |
| CN112556191B (en) * | 2020-12-31 | 2022-03-22 | 江苏凯博斯防爆电加热器有限公司 | Mining safety-increasing electric heater and mounting method thereof |
| CN113345678A (en) * | 2021-06-07 | 2021-09-03 | 合肥市菲力克斯电子科技有限公司 | Dustproof protection mechanism of electronic transformer |
| CN113345678B (en) * | 2021-06-07 | 2022-11-22 | 合肥市菲力克斯电子科技有限公司 | Dustproof protection mechanism of electronic transformer |
| CN115331525A (en) * | 2022-09-01 | 2022-11-11 | 烟台大学 | Automatic control theoretical simulation experiment device |
| CN115331525B (en) * | 2022-09-01 | 2023-09-22 | 烟台大学 | An automatic control theory simulation experimental device |
| CN121172581A (en) * | 2025-09-22 | 2025-12-19 | 陆牌电气科技有限公司 | Landscape type box transformer substation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108924396A (en) | A kind of monitoring camera self cleaning method based on Internet of Things | |
| CN211421948U (en) | Rain-sheltering control device based on solar power generation | |
| CN112421440A (en) | High-low voltage electric appliance switch control complete system | |
| CN220209644U (en) | Low-voltage switching device | |
| CN210926824U (en) | Heat dissipation dust removal type low pressure power distribution cabinet | |
| CN211017826U (en) | High-low voltage power distribution cabinet with temperature regulation function | |
| CN210640524U (en) | Electric automatization switch board | |
| CN210900185U (en) | Novel dustproof construction of SVG power cabinet | |
| CN220066429U (en) | Block terminal with winding displacement function | |
| CN217469246U (en) | Dustproof heat abstractor of cubical switchboard | |
| CN119050837A (en) | Waterproof outdoor power distribution cabinet | |
| CN216289691U (en) | An intelligent distribution box with monitoring function | |
| CN214589921U (en) | High-low voltage switch cabinet with waterproof dustproof function | |
| CN210640498U (en) | Dustproof filter equipment of outdoor high voltage distribution cabinet | |
| CN115332954A (en) | Distribution box assembly tool frame | |
| CN210041335U (en) | Dust-protection type intelligence condenser | |
| CN115589202A (en) | Photovoltaic board for new forms of energy with self-cleaning function | |
| CN113849050A (en) | Computer machine case with dust removal function | |
| CN209948348U (en) | A photovoltaic DC lightning protection distribution box | |
| CN214849725U (en) | Split type switch cabinet | |
| CN218242681U (en) | Electrical box convenient to installation for electrical engineering | |
| CN221353504U (en) | Box-type substation with waterproof bottom | |
| CN221353458U (en) | Antistatic electrical equipment box | |
| CN219811786U (en) | Photovoltaic ammeter box | |
| CN219919416U (en) | Independent micro-grid controller |
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: 20200609 |