CN207302722U - Anti-freeze cable and electric power facility - Google Patents
Anti-freeze cable and electric power facility Download PDFInfo
- Publication number
- CN207302722U CN207302722U CN201721080866.3U CN201721080866U CN207302722U CN 207302722 U CN207302722 U CN 207302722U CN 201721080866 U CN201721080866 U CN 201721080866U CN 207302722 U CN207302722 U CN 207302722U
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- Prior art keywords
- layer
- freeze
- cable
- hole
- freeze cable
- 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
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- 230000002528 anti-freeze Effects 0.000 title claims abstract description 45
- 108010053481 Antifreeze Proteins Proteins 0.000 title claims abstract description 43
- 239000010410 layer Substances 0.000 claims abstract description 100
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 239000011241 protective layer Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 12
- 229910052720 vanadium Inorganic materials 0.000 claims description 12
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 12
- 238000009825 accumulation Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 206010063493 Premature ageing Diseases 0.000 abstract description 4
- 208000032038 Premature aging Diseases 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000005439 thermosphere Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model provides a kind of anti-freeze cable and electric power facility, belongs to electrical distribution field.This anti-freeze cable includes core, insulating layer, heating layer, waterproof layer and protective layer.Insulating layer is arranged at the outer surface of core, and waterproof layer is arranged at the outer surface of insulating layer, and heating layer is arranged on the outer surface of waterproof layer, and protective layer is arranged on the outer surface of heating layer.When in the environment that anti-freeze cable is set up in low temperature severe cold, the chemical substance in heating layer can generate heat with air reaction, so as to prevent anti-freeze cable to be damaged by frost or premature aging.Above-mentioned electric power facility includes cable pole and above-mentioned anti-freeze cable, and anti-freeze cable is erected at high aerial by cable pole.Since electric power facility employs above-mentioned anti-freeze cable, therefore the antifreezing effect of whole electric power facility is improved.
Description
Technical field
The present invention relates to electrical distribution field, in particular to a kind of anti-freeze cable and electric power facility.
Background technology
With the invention of society, electric power has become indispensable resource.Power plant (power plant) also known as generates electricity
Stand, be the factory that the various ecosystem energy conversions for containing nature are electric energy.The development of motor manufacturing technology, electric energy application
The expansion of scope, produces increasing rapidly to the needs of electricity, power plant comes into being therewith.There are a variety of power generations in present power plant
Approach：By the title thermal power plant of thermal power generation, by hydroelectric title hydroelectric power plant, go back some and lean on solar energy and wind-force and tidal power generation
Power plant etc..And the nuclear power plant using nuclear fuel as the energy has played a greater and greater role in world many countries.
Under normal conditions, natural flow station is arranged near great rivers or lake, and wind power station sets wind in the wild
The larger region of power, nuclear power station are generally located on coastal area.Either any generation mode, the point in power station will pass through
Cable transfer is to each place.
According to the distance of conveying electric energy distance, using different high voltages.Reveal for a long time exposed to high-altitude on high voltage power transmission cable road
Under it, wind and weather, especially northern transmission cable road are received daily, also suffer the low temperature severe cold of north of china in winter, in order to
Prevent the bursting by freezing of transmission cable and premature aging under low temperature, the antifreezing heat insulation measure to transmission cable is essential.
A kind of anti-freeze cable and electric power facility are provided, there is very important reality to anticipate for this development for electric utility
Justice.
The content of the invention
Object of the present invention is to provide a kind of anti-freeze cable, its can prevent cable be damaged by frost at low ambient temperatures or
Person's aging.
Another object of the present invention is to provide a kind of electric power facility, which employs above-mentioned anti-freeze cable, so as to anti-
Only electric power facility is damaged by frost.
What the present invention was realized in：
A kind of anti-freeze cable, including：
Core, the core are to be made of an electrically conducting material；
Insulating layer, the insulating layer are arranged at the outer surface of the core；
Waterproof layer, institute's waterproof layer are arranged at the outer surface of the insulating layer；
Heating layer, the heating layer are arranged on the outer surface of the waterproof layer, and the heating layer is consolidated including polymer gel
Body electrolyte and reduced iron powder, activated carbon；First through hole is provided with the heating layer；
Protective layer, the protective layer are arranged at the outer surface of the heating layer；The second through hole is provided with the protective layer；
Second through hole is connected with the first through hole.
Preferably,
The protective layer is self-heating material.
Preferably,
The protective layer includes metal vanadium layers and magnesium metal layer, and the metal vanadium layers are arranged on the heating layer and affiliated gold
Between category magnesium layer.
Preferably,
The inner surface of the metal vanadium layers and the magnesium metal layer is both provided with groove.
Preferably,
Heat-storing material is provided with the groove.
Preferably,
The anti-freeze cable further includes insulating layer, and the insulating layer is arranged between the heating layer and the protective layer,
Third through-hole is provided with the insulating layer, the third through-hole is connected with the first through hole, the second through hole.
Preferably,
Multiple mounting holes are provided with the insulating layer, heat-storing material is loaded with the mounting hole.
Preferably,
The circumferencial direction in the heating layer along section is provided with multiple accumulation of heat holes.
Preferably,
The distance between described accumulation of heat hole is 0.2-0.5 millimeters.
A kind of electric power facility, the electric power facility include cable pole and the anti-freeze cable, the anti-freeze cable and institute
State cable pole connection.
The beneficial effects of the invention are as follows：The anti-freeze cable and electric power facility that the present invention is obtained by above-mentioned design, when antifreeze
When erecting cable is in the environment of low temperature severe cold, the chemical substance in heating layer can generate heat with air reaction, so as to prevent
Only anti-freeze cable is damaged by frost or premature aging.Above-mentioned electric power facility includes cable pole and above-mentioned anti-freeze cable, and cable pole will be antifreeze
Erecting cable is high aerial.Since electric power facility employs above-mentioned anti-freeze cable, therefore the antifreezing effect of whole electric power facility obtains
Improve.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram for the anti-freeze cable cross section that the embodiment of the present invention 1 provides；
Fig. 2 is the cross-sectional structure schematic diagram for the insulating layer that embodiment of the present invention provides；
Fig. 3 is the cross-sectional structure schematic diagram for the protective layer that embodiment of the present invention provides；
Fig. 4 is the cross-sectional structure schematic diagram for the insulating layer that embodiment of the present invention provides.
Icon：100- anti-freeze cables；110- cores；120- insulating layers；130- waterproof layers；140- heating layers；150- is kept the temperature
Layer；160- protective layers.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
Attached drawing in mode, is clearly and completely described the technical solution in embodiment of the present invention, it is clear that described reality
The mode of applying is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The scope of protection.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement guarantor below
The scope of the present invention of shield, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The scope of protection.
In the description of the present invention, it is to be understood that the term of indicating position or position relationship is based on shown in attached drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified equipment
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or should
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and cannot manage
Solve to indicate or implying relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring component abswolute level or pendency, and
It is to be slightly tilted.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent the structure
Have to fully horizontally, but can be slightly tilted.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with or below second feature
Directly contacted including the first and second features, can also include the first and second features not be direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above to include fisrt feature special second
Directly over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
Embodiment 1：
A kind of anti-freeze cable, such as Fig. 1 are present embodiments provided, this anti-freeze cable 100 includes core 110, insulating layer
120th, heating layer 140, waterproof layer 130 and protective layer 160.Insulating layer 120 is arranged at the outer surface of core 110, and waterproof layer 130 is set
The outer surface of insulating layer 120 is placed in, heating layer 140 is arranged on the outer surface of waterproof layer 130, and protective layer 160 is arranged on heating layer
140 outer surface.
Core 110 is to be made of an electrically conducting material, and the present embodiment employs steel material.Whole core 110 is led by multiple
Line is wound in what one was made.As a result of steel material, and core 110 be have multiple conducting wires windings make and
Into the integral strength of core 110 provided in this embodiment is high, is highly suitable for setting up at a distance.
In other embodiments, core 110 can also use other conductive materials, such as can be copper or aluminium；Conducting wire
Canoe can use canoe of the prior art, can also be changed accordingly according to actual conditions；These change
Become the use for having no effect on core 110.
Such as Fig. 2, heating layer 140 includes the chemical substance such as polymer gel solid electrolyte and reduced iron powder, activated carbon.Hair
Be provided with first through hole on thermosphere 140, first through hole is used to introduce air into heating layer 140 so that with heating layer 140
Chemical substance react release heat, so as to heat the temperature around core 110, heat is provided for core 110.
In addition, being provided with multiple accumulation of heat holes on heating layer 140, thermal control is needed reversely to prolong along the length of anti-freeze cable 100100
Stretch, and be along the circumferential direction distributed.Shown by many experiments, the distance between accumulation of heat hole when between 0.2-0.5 millimeters, its
Accumulation of heat effect is best.
Such as Fig. 1 and Fig. 3, protective layer 160 is arranged on the outer surface of heating layer 140, and it is logical that second is provided with protective layer 160
Hole, the second through hole are connected with first through hole, so that extraneous air can smoothly enter internal layer.Protective layer 160 can be to hair
Thermosphere 140 is protected, and prevents its damage.In order to further improve antifreezing effect, protective layer 160 employs self-heating material,
Protective layer 160 in the present embodiment employs sandwich construction, including metal vanadium layers and magnesium metal layer, metal vanadium layers are arranged on fever
Between layer 140 and magnesium metal layer.
In addition, the inner surface of metal vanadium layers and magnesium metal layer is both provided with groove, heat-storing material is provided with groove.Accumulation of heat
Material can directly use material of the prior art.Groove is set there are two effects：One effect is between enhancement layer and layer
Connection contact, another effect is storage that heat can be made to certain time in a groove.
Protective layer 160 provided in this embodiment mainly make use of the performance of magnesium metal and vanadium metal in itself.Magnesium metal is excellent
Point is that any energy is not required, and air association reaction, that is, heatable；The performance of vanadium metal is more stable.
Such as Fig. 1 and Fig. 4, anti-freeze cable 100100 is also provided with insulating layer 150, and insulating layer 150 is arranged on 140 He of heating layer
Between protective layer 160, third through-hole (not shown), first through hole, the second through hole and threeway are provided with insulating layer 150
Hole is interconnected.Multiple mounting hole (not shown)s are provided with insulating layer 150, heat-storing material is filled with mounting hole.Protect
Warm layer 150 is directly made using thermal insulation material.Thermal insulation material is very universal in the prior art, and the present embodiment is not to protecting
Adiabator is described.
Generally speaking, the spontaneous heat structure of multilayer and transmission cable are combined by the present embodiment, utilize itself meeting of spontaneous heat structure
The characteristics of fever, helps transmission cable to keep the temperature, and prevents transmission cable bursting by freezing and aging at low temperature, and the letter of the utility model structure
Single, maintenance cost is low.
It should be noted that the present embodiment is preferred embodiment, in other embodiments, certain change can be carried out to it
Become.Such as：
Protective layer 160 can use other materials, as long as can be protected to heating layer；
Alternatively, in other embodiments, insulating layer 150 can not also be set；
Either groove can be not provided with metal vanadium layers and magnesium metal layer or groove is only set, not in groove
Heat-storing material is set；
Or the distance between accumulation of heat hole can also correspondingly be changed on heating layer 140.
These changes do not influence the realization of present disclosure technical solution.
Embodiment 2：
A kind of electric power facility is present embodiments provided, which includes cable pole and embodiment 1 and its deformation implementation
Anti-freeze cable 100100 in example.
Cable pole is connected with ground, and anti-freeze cable 100100 is connected with cable pole, and is erected at high aerial.In the present embodiment
Cable pole be by the steel construction that is made of shaped steel connection, including four supporting legs, connected between supporting leg with angle steel and bolt
Connect.The bottom of supporting leg is provided with connecting portion, for being connected with ground.
The process of construction of electric power facility approximately as：The connecting portion of supporting leg is bought in into underground, pours into armored concrete progress
It is fixedly connected.Then each shaped steel is attached fixation by bolt, ultimately forms tower-like cable pole.Cable pole has been fixed
Bi Hou, anti-freeze cable 100100 is connected thereto.
Anti-freeze cable 100100 is employed by electric power facility in this present embodiment, low temperature severe cold environment in use,
It can be effectively prevented from power transmission cable to be damaged by frost, and avoid the premature aging of power transmission cable.
The foregoing is merely the preferred embodiment of the present invention, is not intended to limit the invention, for this area
For technical staff, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. anti-freeze cable, it is characterised in that including：Core, the core are to be made of an electrically conducting material；Insulating layer, the insulating layer are arranged at the outer surface of the core；Waterproof layer, institute's waterproof layer are arranged at the outer surface of the insulating layer；Heating layer, the heating layer are arranged on the outer surface of the waterproof layer, and the heating layer includes polymer gel solid electricity Solve matter and reduced iron powder, activated carbon；First through hole is provided with the heating layer；Protective layer, the protective layer are arranged at the outer surface of the heating layer；The second through hole is provided with the protective layer；It is described Second through hole is connected with the first through hole.
- 2. anti-freeze cable according to claim 1, it is characterised in that the protective layer is self-heating material.
- 3. anti-freeze cable according to claim 2, it is characterised in that the protective layer includes metal vanadium layers and magnesium metal Layer, the metal vanadium layers are arranged between heating layer and said metal the magnesium layer.
- 4. anti-freeze cable according to claim 3, it is characterised in that the interior table of the metal vanadium layers and the magnesium metal layer Face is both provided with groove.
- 5. anti-freeze cable according to claim 4, it is characterised in that be provided with heat-storing material in the groove.
- 6. anti-freeze cable according to claim 1, it is characterised in that the anti-freeze cable further includes insulating layer, the guarantor Warm layer is arranged between the heating layer and the protective layer, and third through-hole, the third through-hole are provided with the insulating layer Connected with the first through hole, the second through hole.
- 7. anti-freeze cable according to claim 6, it is characterised in that multiple mounting holes, institute are provided with the insulating layer State and heat-storing material is loaded with mounting hole.
- 8. anti-freeze cable according to claim 1, it is characterised in that the heating layer is provided with along the circumferencial direction in section Multiple accumulation of heat holes.
- 9. anti-freeze cable according to claim 8, it is characterised in that the distance between described accumulation of heat hole is 0.2-0.5 millis Rice.
- 10. a kind of electric power facility, it is characterised in that the electric power facility is included described in cable pole and any one of claim 1 to 9 Anti-freeze cable, the anti-freeze cable is connected with the cable pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721080866.3U CN207302722U (en) | 2017-08-25 | 2017-08-25 | Anti-freeze cable and electric power facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721080866.3U CN207302722U (en) | 2017-08-25 | 2017-08-25 | Anti-freeze cable and electric power facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207302722U true CN207302722U (en) | 2018-05-01 |
Family
ID=62437788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721080866.3U Expired - Fee Related CN207302722U (en) | 2017-08-25 | 2017-08-25 | Anti-freeze cable and electric power facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207302722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461537A (en) * | 2018-10-29 | 2019-03-12 | 合肥鸿坤通信工程有限公司 | A kind of lightweight sea communication cable material that ageing-resistant performance is strong |
| CN111048254A (en) * | 2019-11-29 | 2020-04-21 | 西安冉科信息技术有限公司 | Cable structure suitable for low-temperature area |
-
2017
- 2017-08-25 CN CN201721080866.3U patent/CN207302722U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461537A (en) * | 2018-10-29 | 2019-03-12 | 合肥鸿坤通信工程有限公司 | A kind of lightweight sea communication cable material that ageing-resistant performance is strong |
| CN111048254A (en) * | 2019-11-29 | 2020-04-21 | 西安冉科信息技术有限公司 | Cable structure suitable for low-temperature area |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20190825 |
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| CF01 | Termination of patent right due to non-payment of annual fee |