CN109173118A - A kind of charging cabinet fire plant - Google Patents
A kind of charging cabinet fire plant Download PDFInfo
- Publication number
- CN109173118A CN109173118A CN201811340421.3A CN201811340421A CN109173118A CN 109173118 A CN109173118 A CN 109173118A CN 201811340421 A CN201811340421 A CN 201811340421A CN 109173118 A CN109173118 A CN 109173118A
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- CN
- China
- Prior art keywords
- water
- fire
- spray head
- water tank
- outer cover
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
Abstract
The invention discloses a kind of charging cabinet fire plants, include: water tank, ball-cock assembly, water compensating valve, fire-fighting trigger valve, double ball float switches, one-way ventilating valve, water pipe, Concealed fire spray head, check (non-return) valve, receive water tank, water pump, the water tank is connect with receipts water tank by water pipe, and ball-cock assembly, water compensating valve, fire-fighting trigger valve, double ball float switches, Concealed fire spray head, check (non-return) valve, water pump are set on water pipe, realize that being automatically replenished for fire water is sprayed water with automatic fire control in water tank.The single-floating ball switch that the present invention uses compared with prior art is compared, it is more flexible and convenient, good resolution is accomplished for moisturizing and fire-fighting starting, entire fire-fighting system is mutually indepedent with main body circuit, does not interfere with each other, when there is fire behavior, cabinet integrally powers off, and backup power source ensure that the stable operation of fire-fighting system, when there is fire behavior, whole cabinet will not be made all to charge since water pours into cabinet, it is safer.
Description
Technical field
The present invention relates to battery cupboard field of security technology more particularly to a kind of charging cabinet fire plants.
Background technique
For charging cabinet, change this emerging industry of electric cabinet for, generally use inert gas or dry powder extinguisher conduct
The advantages of mainly means of fire-fighting fire extinguishing, this method, is that occupied space is fewer, is not influenced, is lacked by outside climatic factor
Point is, if being unable to Physical temperature-lowering after kindling, to lower the temperature of battery core part rapidly for lithium battery, the control to the intensity of a fire
It will become highly difficult.Because oneself release oxygen when battery core is on fire, it is meant that not by exterior space oxygen the case where
Under, battery core can be with spontaneous combustion, so the effect of inert gas and dry powder extinguisher will weaken significantly.
A possibility that by the way of spray, battery core being made to cool down rapidly, reducing continuing detonation, sprays fire-fighting to tradition
For, fire-fighting medium is all disposable, it is not possible to be recycled.For the limited equipment in space this for charging cabinet, fire-fighting
It is recycled with water energy, substantially reduces a possibility that fire-fighting cannot thoroughly put out a fire, more reliable safety.
Summary of the invention
One technical problem to be solved by the embodiment of the invention is that: a kind of charging cabinet fire plant is provided, it is existing to solve
There is fire-fighting equipment present in technology to design the problem not scientific, inconvenient to use, the degree of automation is low.
A kind of charging cabinet fire plant provided according to embodiments of the present invention, comprising:
Water tank, ball-cock assembly, water compensating valve, fire-fighting trigger valve, double ball float switches, one-way ventilating valve, water pipe, Concealed fire
Spray head, receives water tank, water pump at check (non-return) valve；
The water pipe includes water inlet end and water outlet, and the top of the water tank, the water outlet is arranged in the water inlet end
The lower part of the water tank is set, and the part water pipe inside the water tank sets gradually water compensating valve, fire-fighting starting from top to bottom
Valve, double ball float switches, the water tank are connect with the receipts water tank by the water inlet end of water pipe；
The ball-cock assembly is arranged inside the water tank, and swims in the upper surface of the water tank fire water, the floating ball
Valve is connect with the water compensating valve, when the ball-cock assembly detects that water level is lower than given threshold in water tank, starts the water compensating valve
Moisturizing is carried out, when water level is higher than given threshold after the ball-cock assembly detects water tank moisturizing, the water compensating valve is closed and stops mending
Water；
The fire-fighting trigger valve starts and controls the water outlet water outlet of the water pipe when fire occurs for charging cabinet；
Double ball float switches judge the water consumption in the water tank for natural evaporation by cooperating with the ball-cock assembly
Or fire-fighting water spray, and start water compensating valve and carry out moisturizing；
The one-way ventilating valve is arranged on the upper lid of the water tank, for the make-up gas into water tank, makes inside and outside water tank
Air pressure is consistent；
The Concealed fire spray head is arranged in the warehouse of charging cabinet, and when the storehouse of the charging cabinet, intracorporal battery occurs
When higher than set temperature threshold value fire hazard may occur for fire or high temperature explosion or storehouse body temperature, the Concealed fire spray
The water outlet of water pipe is arranged in the automatic starting water spray operation of head, the Concealed fire spray head；
Water inlet one end of the water pipe is arranged in the check (non-return) valve, and water adverse current occurs in water inlet for anti-antipriming pipe；
The receipts water tank collects the fire water after use for storing fire water；
The water pump is arranged on water inlet one end of water pipe, for the fire water received in water tank to be drawn into water tank.
It further include complete machine outage detection device in another embodiment based on the above-mentioned charging cabinet fire plant of the present invention,
The complete machine outage detection device is connect with the Concealed fire spray head, when the Concealed fire spray head initiating task,
All electrical equipment power-off of complete machine outage detection device automatic trigger charging cabinet.
In another embodiment based on the above-mentioned charging cabinet fire plant of the present invention, the Concealed fire spray head includes spray
Head body, spray head outer cover, inner cover, sealing ring, spray head plug, explosion glass marble, fixed link, outer cover bottom cover, fusible metal ring；
The spray head outer cover is arranged on the outside of the sprayer body, the completely set up sky in the spray head outer cover of the sprayer body
In；
The inner cover is arranged in the spray head outer cover, and the inner cover is to be inverted cup-like structure, and the setting of top center is opened
Hole, the aperture are connected to the outside of the sprayer body, and the outer wall of the inner cover and the inner wall of the spray head outer cover are in close contact,
The inner cover is used to support spray head outer cover, it is ensured that its stability；
The sealing ring and the spray head plug cooperate, and the water outlet of the sprayer body are arranged in, for blocking the spray
Head body, prevents its water outlet；
The water outlet of sprayer body described in the explosion coloured glaze ball prevents from spraying for applying active force to the spray head plug
Head plug is skidded off from sprayer body water outlet；
The opening of the spray head outer cover is arranged in the outer cover bottom cover, and the fusible metal ring is arranged in the outer cover bottom cover
The surrounding contacted with spray head outer cover is cooperated by fusible metal ring and outer cover bottom cover, is that spray head outer cover forms closed space；
The bottom end of the fixed link is fixed on inside the outer cover bottom cover, upper end be arranged on the sprayer body, for
The outer cover bottom cover applies export-oriented active force；
When there is fire behavior in battery cupboard body, fusible metal ring fusing, the outer cover bottom cover is in gravity and described solid
It falls off under the action of the active force of fixed pole from the opening of spray head outer cover, explosion coloured glaze ball explosion by high temperature, the spray head
Plug slides from the water jet of sprayer body, and water flow sprays automatically from the water jet of sprayer body.
In another embodiment based on the above-mentioned charging cabinet fire plant of the present invention, the outer cover bottom cover is metal material.
Compared with prior art, the present invention has the advantage that
The main body circuit of charging cabinet fire plant of the invention when cutting off power supply of the whole machine independent of complete machine, using machinery
Formula power-off, physical operations is more reliable, and the single-floating ball switch used compared with prior art is compared, more flexible and convenient, for moisturizing
Accomplish good resolution with fire-fighting starting, has avoided due to water shortage and entire fire-fighting system is caused to start, entire fire-fighting system
It is mutually indepedent with main body circuit, it does not interfere with each other, when there is fire behavior, cabinet is integrally powered off, what fire-fighting system sprayed out
Water will not ensure that the stable operation of fire-fighting system to the influence of damaging property of cabinet governor circuit, backup power source, fire occur
When feelings, whole cabinet will not be made all to charge since water pours into cabinet, it is safer.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing used in technical description to do one simply to introduce, it should be apparent that, the accompanying drawings in the following description is of the invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of charging cabinet fire plant of the invention.
Fig. 2 is the structural schematic diagram of another embodiment of charging cabinet fire plant of the invention.
In figure: 1 water tank, 2 ball-cock assemblys, 3 water compensating valves, 4 fire-fighting trigger valves, 5 pairs of ball float switches, 6 one-way ventilating valves, 7 water
Pipe, 8 Concealed fire spray heads, 81 sprayer bodies, 82 spray head outer covers, 83 inner covers, 84 sealing rings, 85 spray head plugs, 86 explosion glass
Water tank, 11 water pumps are received in ball, 87 fixed links, 88 outer cover bottom covers, 89 fusible metal rings, 9 check (non-return) valves, 10.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
A kind of charging cabinet fire plant provided by the invention is described in more detail with reference to the accompanying drawings and examples.
Fig. 1 is the structure chart of one embodiment of charging cabinet fire plant of the invention, as shown in Figure 1, the embodiment
Charging cabinet fire plant includes:
It is water tank 1, ball-cock assembly 2, water compensating valve 3, fire-fighting trigger valve 4, double ball float switches 5, one-way ventilating valve 6, water pipe 7, hidden
Concealed applicator 8, receives water tank 10, water pump 11 at check (non-return) valve 9；
The water pipe 1 includes water inlet end and water outlet, and the top of the water tank 1, the water outlet is arranged in the water inlet end
The lower part of the water tank 1 is arranged in end, and the part water pipe inside the water tank 1 sets gradually water compensating valve 3, fire-fighting from top to bottom
Trigger valve 4, double ball float switches 5, the water tank 1 are connect with the receipts water tank 10 by the water inlet end of water pipe 7；
The ball-cock assembly 2 is arranged inside the water tank 1, and swims in the upper surface of 1 fire water of water tank, described floating
Ball valve 2 is connect with the water compensating valve 3, when the ball-cock assembly 2 detects that water level is lower than given threshold in water tank 1, described in starting
Water compensating valve 3 carries out moisturizing, when water level is higher than given threshold after the ball-cock assembly 2 detects 1 moisturizing of water tank, closes the moisturizing
Valve 3 stops moisturizing；
The fire-fighting trigger valve 4 starts and controls the water outlet water outlet of the water pipe 7 when fire occurs for charging cabinet；
Double ball float switches 5 judge the water consumption in the water tank 1 for nature by cooperating with the ball-cock assembly 2
Evaporation or fire-fighting water spray, and start water compensating valve 3 and carry out moisturizing；
The one-way ventilating valve 6 is arranged on the upper lid of the water tank 1, for the make-up gas into water tank 1, makes water tank 1
Inner and outer air pressure is consistent；
The Concealed fire spray head 8 is arranged in the warehouse of charging cabinet, when the intracorporal battery hair in the storehouse of the charging cabinet
When higher than set temperature threshold value fire hazard may occur for calamity of lighting a fire or high temperature explosion or storehouse body temperature, the Concealed fire
Automatically the water outlet of water pipe 7 is arranged in the operation of starting water spray, the Concealed fire spray head 8 to spray head 8；
Water inlet one end of the water pipe 7 is arranged in the check (non-return) valve 9, and water adverse current occurs in water inlet for anti-antipriming pipe 7；
The receipts water tank 10 collects the fire water after use for storing fire water；
The water pump 11 is arranged on water inlet one end of water pipe 7, for the fire water received in water tank 10 to be drawn into water tank 1
It is interior.
It further include complete machine outage detection device, the complete machine outage detection device is connect with the Concealed fire spray head 8,
When 8 initiating task of Concealed fire spray head, all electricity consumptions of the complete machine outage detection device automatic trigger charging cabinet are set
Standby power-off.
Fig. 2 is the structural schematic diagram of another embodiment of charging cabinet fire plant of the invention, as shown in Fig. 2, described
Concealed fire spray head 8 includes sprayer body 81, spray head outer cover 82, inner cover 83, sealing ring 84, spray head plug 85, explosion glass marble
86, fixed link 87, outer cover bottom cover 88, fusible metal ring 89；
In 81 outside of sprayer body, the sprayer body 81 is completely set up in outside the spray head for the setting of spray head outer cover 82
In the space of cover 82；
The inner cover 83 is arranged in the spray head outer cover 82, and the inner cover 83 is to be inverted cup-like structure, top center
Aperture is set, and the aperture is connected to the outside of the sprayer body 81, the outer wall of the inner cover 83 and the spray head outer cover 82
Inner wall is in close contact, and the inner cover 83 is used to support spray head outer cover 82, it is ensured that its stability；
The sealing ring 84 cooperates with the spray head plug 85, the water outlet of the sprayer body 81 is arranged in, for blocking
The sprayer body 81, prevents its water outlet；
The water outlet of sprayer body 82 described in the explosion coloured glaze ball 86, for applying active force to the spray head plug 85,
Prevent spray head plug 85 from skidding off from 81 water outlet of sprayer body；
The opening of the spray head outer cover 82 is arranged in the outer cover bottom cover 88, and the setting of fusible metal ring 89 is described outer
The surrounding that cover bottom cover 88 is contacted with spray head outer cover 82 is cooperated by fusible metal ring 89 and outer cover bottom cover 88, is spray head outer cover 82
Form closed space；
The bottom end of the fixed link 87 is fixed on inside the outer cover bottom cover 88, and upper end is arranged on the sprayer body 81,
For applying export-oriented active force to the outer cover bottom cover 88；
When there is fire behavior in battery cupboard body, the fusible metal ring 89 melts, and the outer cover bottom cover 88 is in gravity and institute
It states and is fallen off under the action of the active force of fixed link 87 from the opening of spray head outer cover 82, the explosion coloured glaze ball 86 is quick-fried by high temperature
Broken, the spray head plug 85 slides from the water jet of sprayer body 81, and water flow sprays automatically from the water jet of sprayer body 81, described outer
Cover bottom cover 88 is metal material.
When fire behavior occurs in battery in battery compartment, for Concealed fire spray head 8 due to high temperature explosion, the water in water tank 1 is rapid
With being sprayed at the spray head of explosion on the battery in corresponding battery compartment；
Occur in the battery compartment of fire behavior as the water in water tank 1 constantly enters, double ball float switches 5 with liquid level reduction
Lowest point is dropped to, whole cabinet powers off immediately, lays in water pump 11 built in the receipts water tank 10 of fire water, can start simultaneously, increases
The water flow of battery is sprayed, quickly eliminates fire behavior to realize.
A kind of charging cabinet fire plant provided by the present invention is described in detail above, it is used herein specifically
Principle and implementation of the present invention are described for a example, the present invention that the above embodiments are only used to help understand
Method and its core concept；At the same time, for those skilled in the art is being embodied according to the thought of the present invention
There will be changes in mode and application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of charging cabinet fire plant characterized by comprising
Water tank, ball-cock assembly, water compensating valve, fire-fighting trigger valve, double ball float switches, one-way ventilating valve, water pipe, Concealed fire spray
Head, receives water tank, water pump at check (non-return) valve；
The water pipe includes water inlet end and water outlet, and the top of the water tank, the water outlet setting is arranged in the water inlet end
In the lower part of the water tank, the part water pipe inside the water tank sets gradually water compensating valve, fire-fighting trigger valve, double from top to bottom
Ball float switch, the water tank are connect with the receipts water tank by the water inlet end of water pipe；
The ball-cock assembly is arranged inside the water tank, and swims in the upper surface of the water tank fire water, the ball-cock assembly with
The water compensating valve connection starts the water compensating valve and carries out when the ball-cock assembly detects that water level is lower than given threshold in water tank
Moisturizing when water level is higher than given threshold after the ball-cock assembly detects water tank moisturizing, closes the water compensating valve and stops moisturizing；
The fire-fighting trigger valve starts and controls the water outlet water outlet of the water pipe when fire occurs for charging cabinet；
Double ball float switches judge the water consumption in the water tank for natural evaporation or disappear by cooperating with the ball-cock assembly
Anti-spraying, and start water compensating valve and carry out moisturizing；
The one-way ventilating valve is arranged on the upper lid of the water tank, for the make-up gas into water tank, makes water tank inner and outer air pressure
Unanimously；
The Concealed fire spray head is arranged in the warehouse of charging cabinet, and when the storehouse of the charging cabinet, fire occurs for intracorporal battery
Or high temperature explosion or storehouse body temperature are higher than set temperature threshold value when fire hazard may occur, the Concealed fire spray head from
The water outlet of water pipe is arranged in dynamic starting water spray operation, the Concealed fire spray head；
Water inlet one end of the water pipe is arranged in the check (non-return) valve, and water adverse current occurs in water inlet for anti-antipriming pipe；
The receipts water tank collects the fire water after use for storing fire water；
The water pump is arranged on water inlet one end of water pipe, for the fire water received in water tank to be drawn into water tank.
2. the apparatus according to claim 1, which is characterized in that it further include complete machine outage detection device, the complete machine power-off
Detection device is connect with the Concealed fire spray head, when the Concealed fire spray head initiating task, the complete machine power-off
All electrical equipment power-off of detection device automatic trigger charging cabinet.
3. device according to claim 1 or 2, which is characterized in that the Concealed fire spray head includes sprayer body, spray head
Outer cover, inner cover, sealing ring, spray head plug, explosion glass marble, fixed link, outer cover bottom cover, fusible metal ring；
The spray head outer cover is arranged on the outside of the sprayer body, the completely set up space in the spray head outer cover of the sprayer body
It is interior；
The inner cover is arranged in the spray head outer cover, and the inner cover is to be inverted cup-like structure, and aperture, institute is arranged in top center
The outside that aperture is connected to the sprayer body is stated, the inner wall close contact of the outer wall of the inner cover and the spray head outer cover is described
Inner cover is used to support spray head outer cover, it is ensured that its stability；
The sealing ring and the spray head plug cooperate, and the water outlet of the sprayer body is arranged in, for blocking the sprayer body,
Prevent its water outlet；
The water outlet of sprayer body described in the explosion coloured glaze ball prevents spray head stifled for applying active force to the spray head plug
Head is skidded off from sprayer body water outlet；
The opening of the spray head outer cover is arranged in the outer cover bottom cover, and the fusible metal ring setting is in the outer cover bottom cover and spray
The surrounding of head outer cover contact, is cooperated by fusible metal ring and outer cover bottom cover, is that spray head outer cover forms closed space；
The bottom end of the fixed link is fixed on inside the outer cover bottom cover, and upper end is arranged on the sprayer body, is used for described
Outer cover bottom cover applies export-oriented active force；
When there is fire behavior in battery cupboard body, the fusible metal ring fusing, the outer cover bottom cover is in gravity and the fixed link
Active force under the action of fall off from the opening of spray head outer cover, explosion coloured glaze ball explosion by high temperature, the spray head plug
It is slid from the water jet of sprayer body, water flow sprays automatically from the water jet of sprayer body.
4. device according to claim 3, which is characterized in that the outer cover bottom cover is metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340421.3A CN109173118A (en) | 2018-11-12 | 2018-11-12 | A kind of charging cabinet fire plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340421.3A CN109173118A (en) | 2018-11-12 | 2018-11-12 | A kind of charging cabinet fire plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109173118A true CN109173118A (en) | 2019-01-11 |
Family
ID=64938992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811340421.3A Pending CN109173118A (en) | 2018-11-12 | 2018-11-12 | A kind of charging cabinet fire plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109173118A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330190A (en) * | 2020-04-07 | 2020-06-26 | 易事特集团股份有限公司 | Energy storage device and fire extinguishing method of energy storage device |
| CN111437544A (en) * | 2020-03-02 | 2020-07-24 | 浙江杭可科技股份有限公司 | Fire control drainage system based on cylinder lithium cell safety control |
| CN111511158A (en) * | 2020-05-25 | 2020-08-07 | 郑州工业应用技术学院 | Water-cooling adjustable router cabinet |
| WO2021108048A1 (en) * | 2019-11-27 | 2021-06-03 | Saft America | Fire suppression system for battery modules |
| CN113808296A (en) * | 2020-06-12 | 2021-12-17 | 深圳市菲尼基科技有限公司 | Low-speed lithium battery real-time monitoring method and big data platform |
| CN114733111A (en) * | 2022-05-07 | 2022-07-12 | 深圳市智城创投新能源有限公司 | Electric scooter places extinguishing device that charges |
| CN114737720A (en) * | 2022-04-29 | 2022-07-12 | 华北水利水电大学 | Rainwater recovery device |
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| CN209361706U (en) * | 2018-11-12 | 2019-09-10 | 东莞骑士换电电子科技有限公司 | A kind of charging cabinet fire plant |
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| US20100236797A1 (en) * | 2009-03-17 | 2010-09-23 | The Viking Corporation | Concealed residential sprinkler |
| CN204684513U (en) * | 2015-05-18 | 2015-10-07 | 何敏 | Possesses the fire-fighting automatic spray control system of automatic water supplement function |
| CN206457885U (en) * | 2017-02-07 | 2017-09-01 | 长沙有色冶金设计研究院有限公司 | Fire cistern is automatically replenished water-storing device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021108048A1 (en) * | 2019-11-27 | 2021-06-03 | Saft America | Fire suppression system for battery modules |
| CN114746155A (en) * | 2019-11-27 | 2022-07-12 | 帅福得美国有限公司 | Fire suppression system for battery module |
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| CN111437544A (en) * | 2020-03-02 | 2020-07-24 | 浙江杭可科技股份有限公司 | Fire control drainage system based on cylinder lithium cell safety control |
| CN111330190A (en) * | 2020-04-07 | 2020-06-26 | 易事特集团股份有限公司 | Energy storage device and fire extinguishing method of energy storage device |
| CN111511158A (en) * | 2020-05-25 | 2020-08-07 | 郑州工业应用技术学院 | Water-cooling adjustable router cabinet |
| CN111511158B (en) * | 2020-05-25 | 2021-04-02 | 郑州工业应用技术学院 | Water-cooling adjustable router cabinet |
| CN113808296A (en) * | 2020-06-12 | 2021-12-17 | 深圳市菲尼基科技有限公司 | Low-speed lithium battery real-time monitoring method and big data platform |
| CN114737720A (en) * | 2022-04-29 | 2022-07-12 | 华北水利水电大学 | Rainwater recovery device |
| CN114737720B (en) * | 2022-04-29 | 2024-02-13 | 华北水利水电大学 | Rainwater recovery device |
| CN114733111A (en) * | 2022-05-07 | 2022-07-12 | 深圳市智城创投新能源有限公司 | Electric scooter places extinguishing device that charges |
| CN114733111B (en) * | 2022-05-07 | 2023-08-15 | 深圳市智城创投新能源有限公司 | Electric scooter charging place fire extinguishing device |
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