CN117254144B - Energy storage battery system with electric fire control trigger - Google Patents
Energy storage battery system with electric fire control trigger Download PDFInfo
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- CN117254144B CN117254144B CN202311532392.1A CN202311532392A CN117254144B CN 117254144 B CN117254144 B CN 117254144B CN 202311532392 A CN202311532392 A CN 202311532392A CN 117254144 B CN117254144 B CN 117254144B
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- safety valve
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- 238000004146 energy storage Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 133
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 239000007921 spray Substances 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims description 50
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 12
- 230000001960 triggered effect Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 7
- 239000003814 drug Substances 0.000 description 6
- 238000004880 explosion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical class CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of batteries, in particular to an energy storage battery system with a control type fire trigger. The energy storage battery system comprises a battery module, a fire-fighting water supply module and a fire-fighting trigger module, wherein the water supply module and the trigger module are arranged on a battery pack; the trigger module comprises a spray header, a puncture assembly and a driving assembly, wherein the puncture assembly and the driving assembly are both arranged in the spray header, a water pipe fixing port and a spray port are arranged on the spray header, a sealing cavity is arranged in the spray header, the water pipe fixing port and the spray port can be communicated with the sealing cavity, and a sealing sheet is arranged in the water pipe fixing port; the piercing assembly comprises a thimble, the thimble is arranged in the spray header, the needle point of the thimble is opposite to the sealing piece, and the sealing piece can be pierced through the relative movement of the thimble and the sealing piece; the driving component is arranged on one side of the puncturing component and drives the puncturing component to move relatively. This energy storage battery system can carry out accurate fire control to single battery through the mode of electric signal control and spray.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to an energy storage battery system with a control type fire trigger.
Background
At present, in the lithium ion battery energy storage system, the fire control design is mainly based on water spraying of medicament spraying (heptafluoropropane or perfluorinated hexanone and the like), other schemes such as water mist, liquid nitrogen and the like are assisted, when the fire control medicament spraying is finished, the fire control effect is difficult to play, and the final fire control means is water spraying. The fire-fighting system only has the main effect of spraying wholly or locally, namely, when the single battery has the safety problems of thermal runaway and the like, the fire-fighting system adopts measures of spraying the whole cabin or the single battery cluster or the single battery module. The scheme is simple in practical implementation, but cannot accurately fire the single battery, so that the fire-fighting effect is often not ideal or the fire-fighting cost is increased.
During the use of the battery, the battery is improperly operated or has other reasons, so that safety problems such as thermal runaway and the like occur, for example, under the condition of severe overcharge, the internal temperature and the pressure of the battery are continuously increased, and when the internal temperature and the pressure exceed the safety threshold of the battery, the battery can explode; other problems such as battery short-circuiting, severe overtemperature, thermal runaway, impact or crush deformation, and puncture may also cause explosion of the battery. The battery safety valve is the last explosion-proof barrier of the battery, and when the internal pressure of the battery reaches the valve opening threshold value of the safety valve, the battery safety valve is flushed for air leakage and pressure reduction to avoid explosion. At this time, the gas inside the battery is discharged to the outside in a large amount, and the electrolyte inside the battery is also sprayed out along with the release of the pressure. Although the safety valve is opened to avoid explosion, the chemical substances in the battery, which leak along with the gas, are likely to fire after chemical reaction with oxygen in the air under high temperature conditions. Meanwhile, the safety of the peripheral batteries is affected by the problem battery, the problem battery needs to be timely warned for intervention, subsequent replacement and the like, and otherwise, the overall safe operation of the system is seriously affected.
The opening of the battery safety valve can be regarded as serious fault of the battery, has the possibility of burning or explosion, and can take targeted fire-fighting measures to avoid further danger expansion. The acquisition of this signal may be used to take fire protection measures for the battery cells. The detection signal of the safety valve can be obtained by adopting Chinese patent application No. 202211634585.3 and publication No. CN 116183207A.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an energy storage battery system with a control type fire control trigger, which can accurately spray fire control to a single battery in an electric signal control mode.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the energy storage battery system mainly comprises a battery module, a safety valve detection device, a control module, a fire control triggering module, a fire control device water supply module and other detection devices; the control module is in communication connection with the fire-fighting trigger module, the fire-fighting device water supply module, the safety valve detection device and other detection devices, the control module obtains detection signals and sends signals to the fire-fighting trigger module, and the fire-fighting trigger module performs fire-fighting actions on the battery module through the fire-fighting device water supply module.
Preferably, the battery module comprises a battery module shell, a plurality of single batteries and a single battery safety valve detection device, wherein the single batteries are arranged in the battery module shell, each single battery is provided with a safety valve, the single battery safety valve detection device is arranged on the safety valve, and whether the safety valve of the single battery is opened is detected through the safety valve detection device.
Preferably, the water supply module of the fire-fighting device comprises a fire-fighting water tank, a water pump and a water pipeline, the fire-fighting water tank and the water pump are connected through the water pipeline, the single battery is subjected to fire-fighting treatment, the water pipeline is arranged above the single battery, and a connector is arranged corresponding to each single battery;
preferably, the fire-fighting trigger module is provided with a plurality of fire-fighting trigger modules and is correspondingly arranged with a plurality of single batteries, the fire-fighting trigger module comprises a spray header, a puncture assembly and a driving assembly, the spray header is correspondingly arranged above the single batteries, a water pipe fixing port and a spray port are arranged on the spray header, a sealing cavity is arranged between the water pipe fixing port and the spray port, the water pipe fixing port is connected with the connector, and a sealing piece for sealing the water pipe fixing port is arranged in the water pipe fixing port; the puncture assembly and the driving assembly are both arranged in the spray header, the puncture assembly is opposite to the sealing piece, and the sealing piece can be punctured to be communicated with the water pipe fixing port through relative movement of the puncture assembly and the driving assembly; the driving component is arranged on one side of the puncturing component and drives the puncturing component to move relatively.
Preferably, the control module is connected with and controls the safety valve detection device, the driving assembly and the water pump, and when the safety valve detection device detects that the single battery is in a thermal runaway state, the driving assembly and the water pump are controlled to work, and the puncturing assembly and the sealing piece are enabled to move relatively to puncture the sealing piece.
Preferably, the other detecting device is a battery management standard detecting amount of the energy storage battery system such as battery temperature, voltage, current and the like.
Preferably, the water pipeline comprises a first pipeline and a second pipeline, the first pipeline is arranged outside the battery module shell, two ends of the first pipeline are respectively connected with the fire water tank and the water pump, one end of the second pipeline is communicated with the water pump, the other end of the second pipeline penetrates through the battery module shell and is fixed in the battery module shell, the second pipeline is arranged right above the single battery, and the connector is arranged on the second pipeline and is located right above the safety valve.
Preferably, the spray header comprises an upper shell and a lower shell, and the upper shell and the lower shell are connected with each other through a bolt group or a buckle;
the upper shell is provided with a driving groove, a cavity and the water pipe fixing port, the driving groove is arranged on one side of the upper shell, the cavity is arranged at the bottom of the upper shell, the water pipe fixing port is arranged at the top of the upper shell, and the water pipe fixing port is communicated with the cavity; wherein, a connecting hole for mutual communication is arranged between the driving groove and the cavity;
the lower shell is funnel-shaped, a hollow cylinder is arranged in the middle of the lower shell, an integrally connected limiting ring is arranged on the inner wall of the top of the hollow cylinder, and a spraying port is arranged at the bottom of the lower shell.
Preferably, the driving assembly comprises an electromagnet driving module, the electromagnet driving module comprises a metal connecting rod, a signal wire and an electromagnetic module, the electromagnetic module is inserted into the driving groove, the metal connecting rod is arranged on one side of the electromagnetic module and penetrates through the connecting hole, and the signal wire is arranged on the other side of the electromagnetic module and is electrically connected with the control module.
Preferably, the puncturing assembly comprises a thimble, the thimble slides in the hollow cylinder, a clamping groove is arranged in the middle of the thimble, the clamping groove and the connecting hole are positioned on the same horizontal line, and the metal connecting rod passes through the connecting hole and is fixedly connected in the clamping groove; the middle part of thimble still is equipped with the spring that the integrative ring and cover were established that supports of setting, is equipped with the stopper on the bottom of thimble, support the top that the ring is located hollow cylinder and be located the below of draw-in groove, the spring compression set up between support ring and hollow cylinder.
Preferably, the water pipe fixing port is internally provided with threads, a sealing ring is arranged between the threads and the sealing sheet, the spacing ring is 0.5-1.0 mm away from the top surface of the hollow cylinder, and the thickness of the sealing sheet is 0.1-0.5 mm.
In summary, the invention has the following advantages:
when a certain single battery in the energy storage battery system is in thermal runaway, the safety valve detection device on the upper portion of the energy storage battery system can transmit signals to the control module, the control module can drive the thimble to puncture the sealing piece and enable the water pump to pump water, and when water is communicated through the water pipe, only the sealing piece above the thermal runaway single battery is damaged, so that the thermal runaway single battery can be accurately sprayed in fire control.
Drawings
Fig. 1 is a schematic diagram of a structure of an energy storage battery system with fire protection (embodiment 1);
fig. 2 is a schematic view of the structure of a battery module in an energy storage battery system with fire protection (embodiment 1);
fig. 3 is a schematic structural view of an energy storage battery module with fire protection (embodiment 2);
FIG. 4 is a schematic diagram of the connection of the electrically controlled fire trigger module to the second pipeline;
FIG. 5 is a schematic diagram of an electronically controlled fire trigger module;
FIG. 6 is a schematic view of the structure of the lower housing;
FIG. 7 is an example of a temperature and safety valve detection layout in an electronically controlled fire-triggered energy storage battery system of FIG. 1;
FIG. 8 is an example of a temperature and safety valve detection arrangement in an electronically controlled fire-triggered energy storage battery system of FIG. 2;
FIG. 9 is an example fire trigger layout in an electronically controlled fire trigger energy storage battery system;
reference numerals: 50. an energy storage battery system; 51. a battery module; 52. a fire device water supply module; 53. a fire trigger module; 61. a battery module case; 62. a single battery; 64. a bus bar; 65. a safety valve; 71. a fire hose; 72. a water pump; 73. a water line; 74. a first pipeline; 75. a second pipeline; 76. a connector; 101. a spray header; 103. a drive assembly; 110. an upper housing; 111. a lower housing; 113. a water pipe fixing port; 114. a spray port; 115. a closure tab; 119. a hollow cylinder; 120. a limiting ring; 121. a thimble; 122. a clamping groove; 123. a support ring; 124. a spring; 125. a limiter; 131. a metal connecting rod; 132. a signal line; 133. an electromagnetic module; 141. a thread; 142. and (3) sealing rings.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
At the same time, it should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The energy storage battery system with the electric control type fire control trigger mainly comprises the following parts:
the fire control system comprises a control module, a battery module 51, a fire control device water supply module 52, a fire control trigger module 53, a safety valve detection device and other detection devices.
The control module is in communication connection with the fire-fighting trigger module 53, the fire-fighting device water supply module 52, the safety valve detection device and other detection devices, the control module obtains detection signals and sends signals to the fire-fighting trigger module 53, and the fire-fighting trigger module 53 performs fire-fighting actions on the battery module 51 through the fire-fighting device water supply module 52.
The following describes the embodiments of the present invention in detail with reference to the drawings.
Example 1:
as shown in fig. 1 and 2, an energy storage battery system 50 with a controlled fire trigger, the energy storage battery system 50 includes a battery module 51, a fire device water supply module 52, and a fire trigger module 53. Wherein a plurality of battery modules 51 are stacked together to form one large energy storage device, a fire-fighting device water supply module 52 is disposed outside the battery modules 51 and is communicatively disposed inside the battery modules 51, and a fire-fighting trigger module 53 is installed on the inside of the battery modules 51 and is located at the top of a battery pack safety valve 65 inside the battery modules 51. Since the driving process in this embodiment is similar to that in embodiment 2, description will be made later.
Example 2:
as shown in fig. 3 to 6, an energy storage battery system 50 with a control fire trigger, the energy storage battery system 50 includes a battery module 51, a fire protection device water supply module 52 and a fire trigger module 53, and the fire protection device water supply module 52 and the fire trigger module 53 are installed on the battery module 51.
As shown in fig. 3 to 4, the fire-fighting trigger module 53 is electrically controlled and controlled by an electrical signal, the device is generally used in a lithium ion battery module 51, a water pipeline 73 of the fire-fighting device water supply module 52 is arranged above the battery module 51, the fire-fighting trigger module 53 is arranged right above a safety valve 65 of each single battery 62, a fire-fighting water tank 71 and a water pump 72 of the fire-fighting device water supply module 52 are arranged outside the battery module 51, and a fire-fighting control system of the energy storage battery system 50 capable of being independently controlled is formed by the above devices.
As shown in fig. 3 to 6, the fire trigger module 53 includes a spray header 101, a piercing assembly and a driving assembly 103, wherein the piercing assembly and the driving assembly 103 are disposed inside the spray header 101, and the spray header 101 may be connected to the water pipeline 73 through a screw connection.
The showerhead 101 includes an upper housing 110 and a lower housing 111, the upper housing 110 and the lower housing 111 being connected to each other by a bolt set or a snap.
The upper shell 110 is provided with a driving groove, a cavity and a water pipe fixing port 113, the driving groove is arranged on one side of the upper shell 110, the cavity is arranged at the bottom of the upper shell 110, the water pipe fixing port 113 is arranged at the top of the upper shell 110, the water pipe fixing port 113 is communicated with the cavity, and a sealing piece 115 which is fixedly connected is arranged at the communicating position; wherein, be equipped with the connecting hole that is used for intercommunication each other between drive tank and the cavity.
As shown in fig. 3 to 5, the provision of the closing piece 115 can prevent the water flow in the water pipe 73 from flowing into the non-activated unit cells 62. And the screw thread 141 is arranged in the water pipe fixing port 113, and the sealing ring 142 is arranged between the screw thread 141 and the sealing piece 115, so that the device has good air tightness when being connected with the water pipe 73. Wherein the closing tab 115 is an aluminum foil.
The lower shell 111 is funnel-shaped, a hollow cylinder 119 for fixing a thimble 121 is arranged in the middle of the lower shell 111, an integrally connected limiting ring 120 is arranged on the inner wall of the top of the hollow cylinder 119, a spraying port 114 is arranged at the bottom of the lower shell 111, and an annular drainage groove is adopted as the spraying port 114 in the spraying port 114.
When the upper housing 110 and the lower housing 111 are connected to each other, the cavity of the upper housing 110 and the hollow water collecting funnel of the lower housing 111 are combined up and down to form a sealed cavity in the showerhead 101. When the closure tab 115 is pierced by the piercing assembly, water can flow from the water line 73 into the water line fixture 113 and through the seal cavity and spray ports 114 to fire treat the unit cell 62 for thermal runaway thereunder.
As shown in fig. 3 to 5, a piercing assembly for piercing the sealing piece 115 is disposed in the sealing cavity of the spray header 101, and the piercing assembly includes a thimble 121, the thimble 121 is disposed in the sealing cavity of the spray header 101, and the tip of the thimble 121 faces the sealing piece 115, and the sealing piece 115 can be pierced by the relative movement of the thimble 121 and the sealing piece 115, and the thickness of the sealing piece 115 is 0.1-0.5 mm, which can ensure that the strength of the sealing piece 115 cannot be broken by water flow when the sealing piece 115 is not pierced, and the thimble 121 can easily pierce the sealing piece 115 when operating.
As shown in fig. 3-5, a drive assembly 103 that drives the lancing assembly is disposed on the upper housing 110 of the showerhead 101 and on one side of the lancing assembly. The driving assembly 103 comprises an electromagnet driving module, the electromagnet driving module comprises a metal connecting rod 131, a signal wire 132 and an electromagnetic module 133, the electromagnetic module 133 is inserted into the driving groove, the metal connecting rod 131 is arranged on one side of the electromagnetic module 133, the metal connecting rod 131 penetrates through the connecting hole, the signal wire 132 is arranged on the other side of the electromagnetic module 133 and is electrically connected with a control module, and the control module is electrically connected with a safety valve detection device of the single battery 62. The control module is a conventional device, which has a signal receiver, a signal transmitter, and a signal processor, and will not be described in detail.
The thimble 121 is axially arranged in the hollow cylinder 119 and can perform sliding movement therein, a clamping groove 122 is formed in the middle of the thimble 121, the clamping groove 122 protrudes out of the hollow cylinder 119, the clamping groove 122 and the connecting hole are in the same horizontal line, and the metal connecting rod 131 can pass through the connecting hole and be fixedly connected in the clamping groove 122; the middle part of the thimble 121 is further provided with an integrally arranged propping ring 123 and a sleeved spring 124, the propping ring 123 is positioned above the hollow cylinder 119 and below the clamping groove 122, and the spring 124 is arranged between the propping ring 123 and the hollow cylinder 119 in a compressed mode.
The limiter 125 is arranged at the bottom of the thimble 121, and the limiter 125 can be abutted against the hollow cylinder 119, so that the thimble 121 cannot be separated from the hollow cylinder 119 after being driven, and the stability of the structure is ensured.
And, spacing ring 120 inside hollow cylinder 119 is apart from hollow cylinder 119 top surface 0.5 ~ 1.0mm, sets up this distance and can make spring 124 joint here, guarantees that spring 124 can not take place the skew when compressing.
As shown in fig. 3, the fire-fighting device water supply module 52 includes a fire-fighting water tank 71, a water pump 72, and a water pipe 73, and the fire-fighting water tank 71 and the water pump 72 are connected by the water pipe 73 and fire-fighting treatment is performed for the unit cell 62.
The fire-fighting water tank 71 and the water pump 72 are both installed outside the battery module housing 61, and the water pump 72 is provided with a water pumping part, a motor rotating part and a control part, wherein the control part can receive electric signals sent by other devices and control the motor rotating part to operate.
While the water pipe 73 includes a first pipe 74 for drawing out water in the fire-fighting water tank 71 and a second pipe 75 for transporting the treated thermal runaway water, the first pipe 74 being provided outside the housing and having both ends connected to the fire-fighting water tank 71 and the water pump 72, respectively; one end of the second pipe 75 is connected to the water pump 72, and the other end is inserted through the battery module case 61 and fixed inside thereof.
The second pipe 75 is located directly above the cells 62 when fixed and extends through the safety valve 65 of each cell 62, so that the second pipe 75 is arranged to radiate over all the cells 62, thus achieving comprehensiveness. The second pipeline 75 is provided with a plurality of connectors 76, and the connectors 76 are located right above the safety valve 65, so that the fire-fighting treatment can be performed on the single battery 62 more accurately. The fire-fighting trigger module 53 connects the water pipe fixing port 113 with the connector 76 through a screw connection.
As shown in fig. 3, the battery module 51 includes a battery module case 61, a single battery 62, and a safety valve detection device by which it is detected whether the single battery 62 in the battery module case 61 is in a thermal runaway state. The unit cells 62 are provided with a plurality of and even vertical installation in the battery module housing 61, and the plurality of unit cells 62 are provided with a plurality of rows and a plurality of columns altogether, and are bundled together through the panel. Wherein positive and negative electrodes are provided on top of each unit cell 62, and the adjacent unit cells 62 are connected to each other by providing a bus bar 64 to connect the positive and negative electrodes of the adjacent unit cells 62.
And a safety valve 65 is further disposed at the top of each unit cell 62, and the safety valve detecting device is disposed directly above the safety valve 65 and attached to the top of the unit cell 62, for detecting whether the unit cell 62 is in a thermal runaway state. Because the safety valve detecting device is electrically connected to the control module, and the control module is electrically connected to the signal line 132 and the water pump 72, when the safety valve detecting device above thermal runaway detects the thermal runaway signal, the signal is transmitted to the fire protection device water supply module 52 and the fire protection triggering module 53 through the control module, so that the water pump 72 is driven to pump water and deliver water, and the ejector pin 121 of the fire protection triggering module 53 above the thermal runaway battery cell 62 is driven to puncture the sealing piece 115, so that the water flow can accurately perform fire protection treatment for the thermal runaway battery cell 62.
The safety valve detection device adopts a battery safety valve detection device, a battery and a detection device in a method according to the publication of China patent application No. 202211634585.3 and publication No. CN116183207A, so that the specific structure and arrangement of the safety valve detection device are not described too much.
When the safety valve 65 on the single battery 62 detects that the battery safety valve 65 is opened, the safety valve detection device transmits a signal to the signal line 132 of the micro electromagnet device, the micro electromagnet device is started, the metal connecting rod 131 is absorbed, the thimble 121 is punched upwards under the action of the spring 124 so as to pierce the sealing piece 115, and the fire-fighting trigger module 53 is communicated with the water pipeline 73. After the safety valve 65 and the safety valve detection device of the safety valve 65 detect that the battery safety valve 65 is opened, the safety valve detection device transmits a signal to the water pump 72 and enables the water pump to work, so that water in the fire-fighting water tank 71 flows into the water pipeline 73, and as only the sealing piece 115 above the thermal runaway on the second pipeline 75 is punctured, the water flow can be sprayed onto the faulty single battery 62 through the bottom spraying port 114 of the fire-fighting trigger module 53 to perform accurate fire fighting.
The water line 73 may not be filled with fire fighting liquid agent first or may be filled with fire fighting liquid agent in the electrically controlled fire-triggered energy storage battery system 50.
In fig. 7, one temperature detection is configured for each single battery 62, and fig. 8, one temperature detection is configured for a plurality of single batteries 62, so that the cost is reduced.
As shown in fig. 7 and 9, the temperature and safety valve 65 detection layout in the electronically controlled fire-triggered energy storage battery system 50 is configured with one temperature and one safety valve 65 detection for each cell 62. The temperature detection and safety valve 65 is connected with the battery management terminal (i.e. the control module) and transmits signals to the battery management terminal, when the battery management terminal obtains that one or more single battery 62 safety valves 65 are opened, the battery management terminal simultaneously transmits signals to the fire-fighting trigger module 53 and the water pump 72 corresponding to the single battery 62, a fire-fighting channel of the single battery 62 is opened, and the water pump 72 transmits fire-fighting liquid medicament to the corresponding single battery 62. To further ensure safety, the battery management terminal may send all the fire-fighting liquid medicines, or may stop the operation of the water pump 72 according to the temperature decrease condition of the single battery 62.
As shown in fig. 8 and 9, in the temperature and safety valve 65 detection layout in the electric control type fire-triggered energy storage battery system 50, one safety valve 65 detection is configured for each single battery 62, and the temperature detection can be implemented in a cost-reducing manner by configuring one temperature detection by a plurality of single batteries 62. The temperature detection and safety valve 65 is connected with the battery management terminal and transmits signals to the battery management terminal, when the battery management terminal obtains that one or more single battery 62 safety valves 65 are opened, the battery management terminal simultaneously transmits signals to the fire-fighting trigger module 53 and the water pump 72 corresponding to the single battery 62, a fire-fighting channel of the single battery 62 is opened, and the water pump 72 transmits fire-fighting liquid medicament to the corresponding single battery 62. To further ensure safety, the battery management terminal may send all the fire-fighting liquid medicines, or may stop the water pump 72 according to the temperature decrease.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art. The generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The energy storage battery system (50) with the electric control type fire control triggering mainly comprises a battery module (51) and a safety valve detection device, and is characterized in that,
the energy storage battery system (50) further comprises a control module, a fire-fighting trigger module (53), a fire-fighting device water supply module (52) and other detection devices; the control module is in communication connection with the fire-fighting trigger module (53), the fire-fighting device water supply module (52), the safety valve detection device and other detection devices, the control module obtains detection signals and sends signals to the fire-fighting trigger module (53), and the fire-fighting trigger module (53) performs fire-fighting actions on the battery module (51) through the fire-fighting device water supply module (52);
the fire-fighting trigger module (53) is provided with a plurality of fire-fighting trigger modules and is correspondingly arranged with a plurality of single batteries (62), the fire-fighting trigger module (53) comprises a spray header (101), a piercing assembly and a driving assembly (103), the spray header (101) is correspondingly arranged above the single batteries (62), a water pipe fixing opening (113) and a spray opening (114) are arranged on the spray header (101), a sealing cavity is arranged between the water pipe fixing opening (113) and the spray opening (114), the water pipe fixing opening (113) is connected with a connector (76), and a sealing piece (115) for sealing the water pipe fixing opening (113) is arranged in the water pipe fixing opening (113); the puncture assembly and the driving assembly (103) are both arranged in the spray header (101), the puncture assembly is opposite to the sealing piece (115), and the sealing piece (115) can be punctured to be communicated with the water pipe fixing opening (113) through relative movement of the puncture assembly and the driving assembly; the driving assembly (103) is arranged on one side of the puncturing assembly, and the driving assembly (103) drives the puncturing assembly to move relatively;
the control module is connected with and controls the safety valve detection device, the driving assembly (103) and the water pump (72), when the safety valve detection device detects that the single battery (62) is in a thermal runaway state, the driving assembly (103) and the water pump (72) are controlled to work, and the puncturing assembly and the sealing sheet (115) are enabled to move relatively to puncture the sealing sheet (115);
the spray header (101) comprises an upper shell (110) and a lower shell (111), wherein the upper shell (110) and the lower shell (111) are connected with each other through a bolt group or a buckle; the upper shell (110) is provided with a driving groove, a cavity and the water pipe fixing port (113), the driving groove is arranged on one side of the upper shell (110), the cavity is arranged at the bottom of the upper shell (110), the water pipe fixing port (113) is arranged at the top of the upper shell (110), and the water pipe fixing port (113) is communicated with the cavity; wherein, a connecting hole for mutual communication is arranged between the driving groove and the cavity; the lower shell (111) is funnel-shaped, a hollow cylinder (119) is arranged in the middle of the lower shell (111), an integrally connected limiting ring (120) is arranged on the inner wall of the top of the hollow cylinder (119), and the bottom of the lower shell (111) is provided with a spraying port (114);
the driving assembly (103) comprises an electromagnet driving module, the electromagnet driving module comprises a metal connecting rod (131), a signal wire (132) and an electromagnetic module (133), the electromagnetic module (133) is inserted into the driving groove, the metal connecting rod (131) is arranged on one side of the electromagnetic module (133) and the metal connecting rod (131) is arranged in the connecting hole in a penetrating way, and the signal wire (132) is arranged on the other side of the electromagnetic module (133) and is electrically connected with the control module;
the puncture assembly comprises a thimble (121), the thimble (121) slides in the hollow cylinder (119), a clamping groove (122) is formed in the middle of the thimble (121), the clamping groove (122) and the connecting hole are positioned on the same horizontal line, and a metal connecting rod (131) passes through the connecting hole and is fixedly connected in the clamping groove (122); the middle part of thimble (121) still is equipped with integrative spring (124) that support ring (123) and cover were established that set up, is equipped with stopper (125) on the bottom of thimble (121), support ring (123) be located the top of cavity cylinder (119) and be located the below of draw-in groove (122), spring (124) compression set up between support ring (123) and cavity cylinder (119).
2. The fire-triggered energy storage battery system with electric control according to claim 1, wherein the battery module (51) comprises a battery module housing (61), a plurality of single batteries (62) and a single battery safety valve detection device, the plurality of single batteries (62) are installed in the battery module housing (61), each single battery (62) is provided with a safety valve (65), the single battery safety valve detection device is arranged on the safety valve (65), and whether the safety valve of the single battery (62) is opened is detected by the safety valve detection device.
3. The energy storage battery system with the electric control type fire control triggering function according to claim 1, wherein the fire control device water supply module (52) comprises a fire control water tank (71), a water pump (72) and a water pipeline (73), the fire control water tank (71) and the water pump (72) are connected through the water pipeline (73) and fire control is conducted on the single batteries (62), the water pipeline (73) is arranged above the single batteries (62), and connectors (76) are arranged corresponding to each single battery (62).
4. The energy storage battery system with the electric control fire trigger according to claim 1, wherein the other detection device is a battery management standard detection amount of the energy storage battery system such as battery temperature, voltage, current and the like.
5. A fire-triggered energy storage battery system with electric control as claimed in claim 3, characterized in that the water pipe (73) comprises a first pipe (74) and a second pipe (75), the first pipe (74) is arranged outside the battery module housing (61) and is connected with the fire-fighting water tank (71) and the water pump (72) at two ends respectively, one end of the second pipe (75) is communicated with the water pump (72), the other end of the second pipe passes through the battery module housing (61) and is fixed in the second pipe (75) is arranged right above the single battery (62), and the connector (76) is arranged on the second pipe (75) and is positioned right above the safety valve (65).
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| CN202311532392.1A CN117254144B (en) | 2023-11-17 | 2023-11-17 | Energy storage battery system with electric fire control trigger |
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| CN117244197B (en) * | 2023-11-17 | 2024-03-12 | 杭州高特电子设备股份有限公司 | Energy storage battery system with mechanical fire-fighting trigger |
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