CN220429914U - Charging pile with fire-fighting device - Google Patents
Charging pile with fire-fighting device Download PDFInfo
- Publication number
- CN220429914U CN220429914U CN202321983321.9U CN202321983321U CN220429914U CN 220429914 U CN220429914 U CN 220429914U CN 202321983321 U CN202321983321 U CN 202321983321U CN 220429914 U CN220429914 U CN 220429914U
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- fixed
- vertical box
- fire
- box
- umbrella
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- 239000000843 powder Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 26
- 238000009423 ventilation Methods 0.000 claims description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 10
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000000638 solvent extraction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model belongs to the field of charging piles, and discloses a charging pile comprising: a charging pile with a fire-fighting device comprises a vertical box, wherein a charging device is arranged in the vertical box, an umbrella-shaped cover is arranged at the top of the vertical box, a fan is fixed on the inner wall of the vertical box, a wind gap corresponding to the fan is arranged on the side wall of the vertical box, and a protection pipe corresponding to the wind gap is fixed outside the vertical box; the first fire-fighting unit comprises a hanging dry powder fire extinguisher, an electric push rod and temperature monitors, wherein the fixed end of the electric push rod is fixed in the umbrella-shaped cover, the driving end of the electric push rod penetrates through the bottom of the umbrella-shaped cover and is fixed with the hanging dry powder fire extinguisher, and the temperature monitors are arranged on the side wall of the inside of the vertical box at intervals. The temperature inside the vertical box can be controlled in a partitioning mode through the arrangement of the electric push rod and the temperature monitor, so that the electric push rod can send the hanging dry powder fire extinguisher to a fire place for extinguishing fire in the initial stage of a fire condition, and property loss is reduced.
Description
Technical Field
The utility model belongs to the technical field of charging piles, and particularly relates to a charging pile with a fire-fighting device.
Background
Along with development of electric automobiles, charging piles are also gradually popularized in various areas, the charging piles are usually installed in public areas, high-temperature working environments are difficult to avoid, in addition, the charging device parts are in a high-current working state for a long time, the aging and damage of the charging piles are relatively serious, the factors easily cause the charging device parts to rapidly heat, and the charging piles face a great electrical fire risk, so that a fire fighting device is required to be equipped.
The Chinese patent with publication number CN219214755U discloses an outdoor charging pile for a new energy automobile, which comprises a vertical box, a fire extinguishing unit and a drying unit; a vertical plate is arranged in the middle of the upper end inside the vertical box, and a circuit board is arranged on the lower side of the right end of the vertical plate; the fire extinguishing unit comprises an elbow pipe, a fire-fighting spray header, a ring box, a spring, a T-shaped ring and a flat ring, wherein the elbow pipe is arranged on the upper side of the left end of the vertical box, the horizontal end on the right side of the elbow pipe is inserted on the vertical plate, two fire-fighting spray headers are arranged below the horizontal end on the right side of the elbow pipe, when the internal circuit of the charging pile is in a fire condition, the glass tube in the fire-fighting spray header is burst by liquid which is heated and expanded inside, compressed dry powder in the dry powder tank is sprayed out of the fire-fighting spray header to extinguish the inside of the charging pile, and the water vapor inside the charging pile can be dried by utilizing the work of the graphene heating plate, so that the stable operation of the internal circuit of the charging pile is ensured, and the moisture resistance is better.
However, in the actual use process, since the fire-fighting spray header is located at the top of the vertical box, at the initial stage of fire, the internal fire is small and the temperature is insufficient to enable the liquid in the glass tube to burst the glass tube, and the fire extinguishing unit cannot control the fire, so that the device cannot extinguish the fire at the initial stage of fire, further the damage of equipment cannot be further reduced, and because the storage amount of the dry powder tank is limited, if the fire is not extinguished after the consumption is finished, the effective fire extinguishing function cannot be achieved.
Disclosure of Invention
The utility model aims to provide a charging pile with a fire-fighting device, so as to solve the problem that the scheme cannot control in the initial stage of a fire.
In order to achieve the above object, the present utility model provides the following technical solutions: a charging pile with a fire-fighting device comprises
The charging device is arranged in the vertical box, the umbrella-shaped cover is arranged at the top of the vertical box, the fan is fixed on the inner wall of the vertical box, the air port corresponding to the fan is arranged on the side wall of the vertical box, and the protective tube corresponding to the air port is fixed outside the vertical box;
the first fire-fighting unit comprises a hanging dry powder fire extinguisher, an electric push rod and temperature monitors, wherein the fixed end of the electric push rod is fixed in the umbrella-shaped cover, the driving end of the electric push rod penetrates through the bottom of the umbrella-shaped cover and is fixed with the hanging dry powder fire extinguisher, and the temperature monitors are arranged on the side wall of the inside of the vertical box at intervals.
The principle and effect of the technical scheme are as follows:
1. the setting through fan, wind gap and protective tube can accelerate the heat exchange of standing the incasement portion with external world to reduce and stand incasement portion temperature, initially play the effect of avoiding getting on fire.
2. The electric push rod is arranged together with the hanging dry powder fire extinguisher, so that the hanging dry powder fire extinguisher can be driven by the electric push rod to move up and down in the vertical box, the temperatures of all parts in the vertical box can be detected in a partitioning mode, when local fire is detected and the fire condition is in an initial stage, the hanging dry powder fire extinguisher is driven by the electric push rod to move to the upper end of the temperature monitor which sends out the information, so that the glass tube of the hanging dry powder fire extinguisher can be burst quickly, and the situation that the hanging dry powder fire extinguisher at a high place has a fire extinguishing function due to the fact that the local fire is avoided and the fire condition is insufficient is caused.
The utility model is further provided with: still include the second fire control unit, the second fire control unit includes conveyer pipe, control valve and nozzle, and the one end of conveyer pipe is connected with the water tank, fills in the water tank and is equipped with carbon tetrachloride solution, installs the delivery pump in the water tank, and the other end of conveyer pipe passes the bottom of umbrella-shaped lid, and is cyclic annular to be fixed in the umbrella-shaped lid, and the conveyer pipe bottom is fixed with a plurality of nozzles, and the bottom of nozzle passes umbrella-shaped lid and with the inside intercommunication of standing the case, and the control valve is installed on the conveyer pipe.
The principle and effect of the technical scheme are as follows: after the first fire-fighting unit is used, when fire is still not controlled, the control valve is opened, the conveying pump starts to work, carbon tetrachloride solution is pumped out of the water tank and sprayed into the vertical tank through the conveying pipe and the nozzle, so that a further fire-extinguishing function is achieved, the situation that the fire cannot be extinguished once by the hanging dry powder fire extinguisher with larger fire is overcome, and subsequent property loss is reduced.
The utility model is further provided with: the rear side wall of the vertical box is provided with a ventilation opening, a mesh plate is fixed in the ventilation opening, a baffle corresponding to the ventilation opening is arranged on the rear side wall of the vertical box, and a driving unit for driving the baffle is arranged in the vertical box.
The principle and effect of the technical scheme are as follows: the driving unit can drive the baffle plate, so that the baffle plate can control the opening and closing of the ventilation opening, the mesh plate can play a role in blocking, and meanwhile, the exchange area between the inside of the vertical box and the external environment is enlarged, so that the inside of the vertical box can exchange gas by opening the baffle plate, thereby playing a role in reducing the temperature, further reducing the probability of fire,
the utility model is further provided with: the section of the baffle is in a ladder shape.
The principle and effect of the technical scheme are as follows: the stepped section can more tightly shield the ventilation port, thereby leading the sealing effect of the baffle plate to be better
The utility model is further provided with: the driving unit comprises a fixed box, a sealing bag, a pushing plate, a pushing rod and a reset spring, wherein the fixed box is fixed in the vertical box, gas is filled in the sealing bag, the sealing bag is placed in the fixed box, the pushing plate is in sliding fit with the fixed box and is located between the sealing bag and the baffle, one end of the pushing rod is fixed with the pushing plate, the other end of the pushing plate penetrates through the fixed box and the vertical box and is fixed with the baffle, a placing groove coaxially arranged with the pushing rod is formed in the inner wall of the vertical box, and the reset spring is placed in the placing groove and is sleeved on the pushing rod.
The principle and effect of the technical scheme are as follows: the sealing bag is internally provided with gas, the fixed box is arranged in the vertical box, so that when an electric device in the vertical box starts to work, heat is generated, the whole temperature in the vertical box is increased, the fixed box and the sealing bag are heated, the object has a volume which changes along with the change of the temperature, the expansion coefficient of the gas is larger, the temperature of the gas in the sealing bag is also increased along with the increase of the temperature in the vertical box, the volume of the gas in the sealing bag is changed, the sealing bag is increased, the push plate is pushed to drive the baffle to move outwards, the ventilation opening is opened, the external low temperature can enter the vertical box in a large amount, the rapid cooling function is realized, the volume of the sealing bag is reduced after the temperature is reduced, the reset spring can drive the baffle to reset through the rebound force, the device is closed, and the aging speed of the internal electric device is further reduced.
The utility model is further provided with: the gas is ammonia.
The principle and effect of the technical scheme are as follows: the gas expansion coefficient of ammonia gas is the largest in all gases, namely the volume change is the largest along with the temperature rise, so the ammonia gas sealing bag is well applicable to the effect of volume adjustment, and meanwhile, the ammonia gas is low in price and stable in use.
The utility model is further provided with: a dustproof net is arranged on one side of the mesh plate far away from the vertical box.
The principle and effect of the technical scheme are as follows: the dust screen can reduce dust entering the inside of the vertical box when the baffle is opened to perform ventilation balance temperature, so that the influence of dust and the like on electric devices in the vertical box is reduced.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a front view block diagram of the present utility model;
FIG. 3 is a side elevational structural view of the present utility model;
fig. 4 is an enlarged view at a in fig. 3;
FIG. 5 is a block diagram of the baffle of FIG. 3;
fig. 6 is a top view of the delivery tube of fig. 2.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and embodiments:
reference numerals in the drawings of the specification include: 101. a vertical box; 102. a charging device; 103. an umbrella-shaped cover; 104. a fan; 105. an air port; 106. a protective tube; 107. a ventilation port; 108. a placement groove; 201. hanging a dry powder fire extinguisher; 202. an electric push rod; 203. a temperature monitor; 301. a delivery tube; 302. a control valve; 303. a nozzle; 304. a water tank; 401. a mesh plate; 402. a baffle; 501. a fixed box; 502. sealing the bag; 503. a push plate; 504. a push rod; 505. and a return spring.
Examples:
as shown in fig. 1-6, the utility model discloses a charging pile with a fire-fighting device, which comprises a vertical box 101, a first fire-fighting unit, a second fire-fighting unit and a driving unit, wherein a charging device 102 is arranged at the front end inside the vertical box 101, an umbrella-shaped cover 103 is arranged at the top of the vertical box 101, a fan 104 is fixed on the inner wall of the right side of the vertical box 101, an air opening 105 corresponding to the fan 104 is arranged on the right side wall of the vertical box 101, a protective tube 106 corresponding to the air opening 105 is fixed outside the vertical box 101, and the air inlet 105 of the protective tube 106 is in a porous net shape;
the first fire-fighting unit comprises a hanging dry powder fire extinguisher 201, an electric push rod 202 and a temperature monitor 203, wherein the hanging dry powder fire extinguisher 201 is a 6KG heavy hanging superfine dry powder automatic fire extinguisher, the fixed end of the electric push rod 202 is fixed in the umbrella-shaped cover 103, the driving end of the electric push rod 202 penetrates through the bottom of the umbrella-shaped cover 103 and is fixed with the hanging dry powder fire extinguisher 201, a plurality of temperature monitors 203 are uniformly distributed on the side wall inside the vertical box 101, a control module (not identified in the figure) is installed in the vertical box 101, the control module receives signals of the temperature monitor 203 and drives the electric push rod 202 to move, and a control command is input in advance by the control module.
The second fire unit includes conveyer pipe 301, control valve 302 and nozzle 303, the one end of conveyer pipe 301 links to each other with water tank 304, install the delivery pump (not marked in the figure) in the water tank 304, it is nonconductive to fill in the water tank 304 to be equipped with carbon tetrachloride solution, and can play fine fire extinguishing function, control valve 302 and delivery pump are all controlled by the control module, the other end of conveyer pipe 301 passes umbrella-shaped lid 103's bottom, and be cyclic annular to be fixed in umbrella-shaped lid 103, the conveyer pipe 301 bottom is fixed with a plurality of nozzles 303, umbrella-shaped lid 103 is passed and with the inside intercommunication of standing case 101 to the bottom of nozzle 303, control valve 302 is installed on conveyer pipe 301.
The rear side wall of the vertical box 101 is provided with a ventilation opening 107, a mesh plate 401 is fixed in the ventilation opening 107, and a dust screen is arranged on one side, far away from the inside of the vertical box 101, of the mesh plate 401.
A baffle 402 having a stepped cross section corresponding to the ventilation opening 107 is mounted on the rear side wall of the vertical box 101.
The driving unit is provided with four groups, and four corners of the inner wall of the rear side of the vertical box 101 are uniformly distributed, the driving unit comprises a fixed box 501, a sealing bag 502, a push plate 503, a push rod 504 and a reset spring 505, the fixed box 501 is fixed in the vertical box 101, ammonia gas is filled in the sealing bag 502, the sealing bag 502 is a bag with better flexibility, the surface area of the sealing bag is larger than that of the fixed box 501, the sealing bag 502 is placed in the fixed box 501, the push plate 503 is in sliding fit with the fixed box 501 and is positioned between the sealing bag 502 and the baffle 402, one end of the push rod 504 is fixed with the push plate 503, the other end of the push plate 503 passes through the fixed box 501 and the vertical box 101 and is fixed with the baffle 402, a placing groove 108 coaxially arranged with the push rod 504 is formed in the inner wall of the vertical box 101, the reset spring 505 is placed in the placing groove 108 and sleeved on the push rod 504, when the temperature in the vertical box 101 is lower than or equal to 40 ℃, the baffle 402 is still in a closed state as shown in fig. 3, and when the temperature in the vertical box 101 is at 60 ℃, the baffle 402 is still in a closed state, the baffle 402 is pushed by the sealing bag to push the push plate 503 on the inner wall of the fixed box 501, and the baffle 402 is in a maximum state, and is kept in a state to be opened.
The specific implementation process is as follows:
when the device is used as an automobile charging pile, firstly, heat is generated when an electric device in the vertical box 101 works, so that the temperature in the vertical box 101 is driven to rise, the temperature in the vertical box 101 rises, the temperature of ammonia in the sealing bag 502 in the fixed box 501 rises along with the temperature rise, the volume of the ammonia is increased, the sealing bag 502 is increased, the push plate 503 is pushed to compress a spring, the compression amount of the spring is gradually increased along with the continuous rise of the temperature, and the baffle 402 is separated from the ventilation opening 105 to perform large-area heat exchange between the inside of the vertical box 101 and the outside, so that the internal temperature of the vertical box 101 is reduced.
After the temperature monitor 203 monitors that the local temperature is higher than the set temperature and lasts for a period of time, a fire alarm is sent out, so that information is transmitted to the control module, the control module drives the electric push rod 202 to move the hanging dry powder fire extinguisher 201 to the upper end of a fire, the high temperature triggers the hanging dry powder fire extinguisher 201 to work, and the first fire unit can control the fire at the initial stage of the fire.
And after the first fire unit works for a period of time, the temperature monitor 203 still does not monitor the temperature drop, and then the control module starts the delivery pump and the control valve 302 to enable the carbon tetrachloride solution to be injected into the vertical box 101, so as to further extinguish fire, and reduce the subsequent property loss caused by the first fire unit not extinguishing fire in place.
The foregoing is merely exemplary embodiments of the present utility model, and detailed technical solutions or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. Take fire control unit's electric pile that fills, its characterized in that: comprising
The charging device is arranged in the vertical box, an umbrella-shaped cover is arranged at the top of the vertical box, a fan is fixed on the inner wall of the vertical box, a wind gap corresponding to the fan is formed in the side wall of the vertical box, and a protection pipe corresponding to the wind gap is fixed outside the vertical box;
the fire-fighting unit comprises a hanging dry powder fire extinguisher, an electric push rod and a temperature monitor, wherein the fixed end of the electric push rod is fixed in the umbrella-shaped cover, the driving end of the electric push rod penetrates through the bottom of the umbrella-shaped cover and is fixed with the hanging dry powder fire extinguisher, and a plurality of temperature monitors are arranged on the side wall of the inside of the vertical box at intervals.
2. The charging pile with a fire protection device as set forth in claim 1, wherein: still include the second fire control unit, the second fire control unit includes conveyer pipe, control valve and nozzle, the one end of conveyer pipe is connected with the water tank, it is equipped with carbon tetrachloride solution to fill in the water tank, install the delivery pump in the water tank, the other end of conveyer pipe passes the bottom of umbrella-type lid, and be cyclic annular be fixed in the umbrella-type lid, the conveyer pipe bottom is fixed with a plurality of nozzles, the bottom of nozzle passes the umbrella-type lid and with the inside intercommunication of standing the case, the control valve install in on the conveyer pipe.
3. The charging pile with a fire protection device as set forth in claim 1, wherein: the back side wall of the vertical box is provided with a ventilation opening, a mesh plate is fixed in the ventilation opening, a baffle corresponding to the ventilation opening is arranged on the back side wall of the vertical box, and a driving unit for driving the baffle is arranged in the vertical box.
4. A charging pile with fire protection device as defined in claim 3, wherein: the section of the baffle is stepped.
5. A charging pile with fire protection device as defined in claim 3, wherein: the driving unit comprises a fixed box, a sealing bag, a pushing plate, a pushing rod and a reset spring, wherein the fixed box is fixed in the vertical box, gas is filled in the sealing bag, the sealing bag is placed in the fixed box, the pushing plate is in sliding fit with the fixed box and is located between the sealing bag and the baffle, one end of the pushing rod is fixed with the pushing plate, the other end of the pushing plate penetrates through the fixed box and the vertical box and is fixed with the baffle, a placing groove coaxially arranged with the pushing rod is formed in the inner wall of the vertical box, and the reset spring is placed in the placing groove and is sleeved on the pushing rod.
6. The charging pile with a fire protection device as defined in claim 5, wherein: the gas is ammonia.
7. A charging pile with fire protection device as defined in claim 3, wherein: and a dustproof net is arranged on one side, far away from the inside of the vertical box, of the mesh plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321983321.9U CN220429914U (en) | 2023-07-26 | 2023-07-26 | Charging pile with fire-fighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321983321.9U CN220429914U (en) | 2023-07-26 | 2023-07-26 | Charging pile with fire-fighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220429914U true CN220429914U (en) | 2024-02-02 |
Family
ID=89695534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321983321.9U Active CN220429914U (en) | 2023-07-26 | 2023-07-26 | Charging pile with fire-fighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220429914U (en) |
-
2023
- 2023-07-26 CN CN202321983321.9U patent/CN220429914U/en active Active
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