CN116759710B - Battery pack internal temperature uniformity balance management equipment - Google Patents
Battery pack internal temperature uniformity balance management equipment Download PDFInfo
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- CN116759710B CN116759710B CN202311054354.XA CN202311054354A CN116759710B CN 116759710 B CN116759710 B CN 116759710B CN 202311054354 A CN202311054354 A CN 202311054354A CN 116759710 B CN116759710 B CN 116759710B
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- battery pack
- heat dissipation
- dissipation frame
- fire extinguishing
- box
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 100
- 238000001816 cooling Methods 0.000 claims abstract description 69
- 238000005192 partition Methods 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 14
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 5
- 230000001934 delay Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 26
- 239000007788 liquid Substances 0.000 description 14
- 239000000110 cooling liquid Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- 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
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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
- A62C31/005—Delivery of fire-extinguishing material using nozzles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
-
- 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
- H01M10/60—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
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
-
- 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)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of battery pack temperature balance protection, and discloses battery pack internal temperature uniformity balance management equipment, which comprises a bottom plate, partition plates, a battery pack and an upper cover, wherein the bottom plate and the upper cover are combined to form a box body for installing the battery pack, a plurality of partition plates are distributed in the box body to divide the box body into a plurality of spaces, the battery pack is installed in the spaces, a heat dissipation frame is arranged in the spaces in a sliding manner up and down, the heat dissipation frame is positioned at the outer side of the battery pack, and the battery pack internal temperature uniformity balance management equipment can isolate a single battery pack and conduct independent cooling and fire extinguishing treatment on the battery pack by utilizing the corresponding fire extinguishing box through the combined design of the bottom plate, the partition plates, the upper cover and the heat dissipation frame and the heat extinguishing box in the bottom box, and the combined design of a temperature sensor and an electromagnetic telescopic rod, so that the fire extinguishing efficiency of the fire extinguishing box can be improved.
Description
Technical Field
The invention relates to the technical field of battery pack temperature balance protection, in particular to a battery pack internal temperature uniformity balance management device.
Background
The battery pack is a power source of the electric vehicle, the battery pack in the electric vehicle is formed by combining a plurality of groups of battery packs, when the electric vehicle is used, the battery packs in the battery pack are in an operating state, certain heat can be generated when the battery packs are operated, heat dissipation treatment is needed to be carried out on the heat, the temperature inside the battery packs is in a relatively balanced state, and meanwhile, the uniformity of the temperature of each group of battery packs is guaranteed, so that the battery packs in the battery packs are in a better operating state.
The battery pack of the electric vehicle usually adopts air cooling and liquid cooling for heat dissipation, but when a certain battery pack in the battery pack is overheated or even has a fire phenomenon, a heat dissipation system in the battery pack cannot play a role in cooling and extinguishing the battery pack with problems, and when a certain battery pack is overheated or even has a fire phenomenon, chain reaction can be generated, so that adjacent battery packs are overheated or even have a fire, the hidden danger of the battery pack is large, automatic fire extinguishing equipment is arranged in the traditional battery pack, but the fire extinguishing agent is limited to store, and the effect of thoroughly cooling and extinguishing the battery pack cannot be achieved.
Disclosure of Invention
In order to solve the problems that when a certain battery pack in the battery pack is overheated or even has a fire phenomenon, a heat dissipation system in the battery pack cannot play a role in cooling and extinguishing the battery pack with problems, and when the certain battery pack is overheated or even has a fire phenomenon, chain reaction can be generated, so that adjacent battery packs are overheated or even have a fire, the hidden danger of the fire of the battery pack is large, the conventional automatic fire extinguishing equipment inside the battery pack has limited fire extinguishing agent storage, and the effect of thoroughly cooling and extinguishing the battery pack cannot be achieved.
The invention is realized by the following technical scheme: the battery pack internal temperature uniformity balance management equipment comprises a bottom plate, a partition plate, a battery pack and an upper cover, wherein the bottom plate and the upper cover are combined to form a box body for installing the battery pack, a plurality of partition plates are distributed in the box body and divide the box body into a plurality of spaces, the partition plates are in sealing connection with the bottom plate and the upper cover and the partition plates are in sealing connection with each other, the battery pack is installed in the spaces, a heat dissipation frame is installed in the spaces in a sliding manner up and down, the heat dissipation frame is positioned at the outer side of the battery pack, the inner side surface of the heat dissipation frame is provided with inner fins which are vertically distributed, the inner fins are used for heat dissipation of the space where the battery pack is located, and meanwhile, when the follow-up fire extinguishing agent is cooled, the inside of the partition plates is provided with a cooling module, and the cooling module is used for heat dissipation of the space where the battery pack is located;
the bottom plate is provided with a bottom box, a plurality of fire extinguishing boxes are arranged in the bottom box, liquid carbon dioxide is filled in the fire extinguishing boxes and used for extinguishing and cooling a space where a corresponding battery pack is located, the fire extinguishing boxes are located below the space, an installation seat is fixedly installed in the bottom box, and the battery pack is fixedly installed in the space through the installation seat;
the temperature sensor is used for monitoring the temperature of the space where the corresponding battery pack is located, judging whether the internal temperature of the space is normal or not and sending an electric signal with overhigh temperature or an electric signal with the temperature recovered to be normal according to the monitored temperature, wherein an electromagnetic telescopic rod is arranged in the upper cover, the electromagnetic telescopic rod is controlled by the electromagnetic pack to extend and retract the telescopic end of the electromagnetic telescopic rod, the telescopic end of the electromagnetic telescopic rod is fixedly connected with the upper surface of the heat dissipation frame, the electromagnetic telescopic rod is electrically connected with the temperature sensor in the corresponding space, when the temperature sensor monitors that the temperature is overhigh, a signal is sent to the electromagnetic telescopic rod, the electromagnetic telescopic rod is started and pushes the heat dissipation frame to move downwards, so that the lower side of the heat dissipation frame is in sealing contact with the bottom surface in the bottom box, and the inner side and the outer side of the heat dissipation frame in the bottom box are sealed and isolated;
the surface of fire-extinguishing box is equipped with the nozzle, the inside of nozzle is provided with the solenoid valve, temperature sensor with be electric connection between the solenoid valve, when temperature sensor detects that the temperature is too high, send the signal to the solenoid valve, make the inside solenoid valve of nozzle open after the lower side of heat dissipation frame and bottom box contact.
Further, when the heat dissipation frame does not move downwards, the lower side edge of the heat dissipation frame is in sealing connection with the bottom plate and the mounting seat, and the space at the moment is not communicated with the cavity in the bottom box;
the cavity inside the bottom box is filled with high-pressure heptafluoropropane gas, and after the heat dissipation frame moves downwards, the high-pressure heptafluoropropane gas inside the cavity enclosed by the heat dissipation frame inside the bottom box can quickly enter the space where the corresponding battery pack is located, so that the battery pack can be quickly extinguished.
Further, a travel groove is formed in the bottom surface of the bottom box, a sealing layer is arranged on the side wall of the travel groove, the travel groove is matched with the lower side edge of the heat dissipation frame, and when the heat dissipation frame moves downwards, the heat dissipation frame enters the travel groove and is in contact sealing with the sealing layer.
Furthermore, a supply pipe is arranged on the surface of the fire extinguishing box and used for supplying fire extinguishing agent to the fire extinguishing box, an electromagnetic reversing valve is arranged on the surface of the supply pipe, a connecting pipe electromagnetic reversing valve is connected between the adjacent supply pipes of the fire extinguishing boxes through the electromagnetic reversing valve and matched with the supply pipe, the fire extinguishing agent can be supplied to the fire extinguishing box, the electromagnetic reversing valve is matched with the connecting pipe, and the fire extinguishing agent in a certain fire extinguishing box can be conveyed to the corresponding fire extinguishing box needing cooling and fire extinguishing through the connecting pipe;
the temperature sensors are electrically connected with all the electromagnetic reversing valves, the temperature sensors send electric signals to the electromagnetic reversing valves in sequence from the near to the far, a delay module is arranged in the electromagnetic reversing valves, the electromagnetic reversing valves delay the starting of the electromagnetic reversing valves after receiving the electric signals with overhigh temperature sent by the temperature sensors, and the electromagnetic reversing valves are started when the electric signals with normal temperature recovery sent by the temperature sensors are not received before the delay ageing of the delay module is finished;
and after the temperature sensor sends an electrical signal with normal temperature recovery to the corresponding electromagnetic directional valve, the temperature sensor does not send an electrical signal to the next electromagnetic directional valve.
When the temperature in the space of a certain battery pack is too high, the corresponding temperature sensor sends signals to the corresponding electromagnetic directional valve and the adjacent electromagnetic directional valve, meanwhile, the fire extinguishing agent in the corresponding fire extinguishing box is sprayed out from the spray nozzle and enters the space of the battery pack to extinguish the fire and cool the battery pack, when the temperature in the cavity of the corresponding battery pack is too high after the fire extinguishing agent in the fire extinguishing box is consumed, the adjacent electromagnetic directional valve is started, the fire extinguishing agent in the adjacent fire extinguishing box is supplied to the fire extinguishing box needing to extinguish the fire and cool through the supply pipe and the connecting pipe, so that continuous fire extinguishing of the battery pack is realized, and in the fire extinguishing process, when the temperature in the space of the battery pack is recovered to the normal temperature and is kept continuously, the temperature sensor sends an electrical signal for recovering the temperature.
Further, the outer side surface of the heat dissipation frame is provided with vertical outer fins for heat dissipation of the heat in the inner space of the heat dissipation frame, and the outer side surface of each outer fin is attached to the partition plate;
the cooling module inside the partition plate is a cooling pipe, the cooling pipe is arranged between the adjacent outer fins in an inverted U shape and used for radiating heat in the outer fins, and the cooling pipe is fixedly arranged in the partition plate;
the inside of base case is provided with feed liquor pipe and drain pipe, the one end of cooling tube with the feed liquor pipe intercommunication, the other end with the drain pipe intercommunication.
Further, the cooling pipe is close to one side end face of the outer fin and is in sealing fit with the opposite surfaces of the two adjacent outer fins and the outer side surface of the heat dissipation frame, so that the cooling pipe can conduct better heat dissipation on the heat inside the outer fin.
Further, a through hole is formed in the side surface of the heat dissipation frame, heat in the heat dissipation frame can be directly transferred to the cooling pipe, the through hole corresponds to the position of the cooling pipe, and a spray hole is formed in the surface of one side, close to the outer side surface of the heat dissipation frame, of the cooling pipe;
when the heat dissipation frame is in the uppermost travel, the through holes are staggered with the spray holes, when the heat dissipation frame is in the lowermost travel, the through holes are communicated with the spray holes, when the temperature inside the battery pack is still in a high-temperature state after being cooled by using the fire extinguishing box, the through holes are communicated with the spray holes, cooling liquid inside the cooling pipe directly enters the space where the battery pack is located, the battery pack is cooled, and the through holes cannot enter the bottom box in the downward movement process of the heat dissipation frame.
Compared with the prior art, the invention has the following beneficial effects:
1. this inside temperature uniformity balance management equipment of group battery through the integrated configuration of bottom plate, baffle, upper cover and heat dissipation frame to and heat dissipation frame and the inside fire extinguishing case of base tank, temperature sensor and electromagnetic telescopic link's integrated configuration, can keep apart single group battery when the group battery appears overheated or the phenomenon of firing, and utilize corresponding fire extinguishing case to carry out independent cooling fire extinguishing treatment to the group battery, with the efficiency that improves the fire extinguishing case and put out a fire, improve the effect that the group battery cools down and puts out a fire, avoid high temperature and fire to spread to other group batteries simultaneously.
2. This balanced management equipment of group battery inside temperature uniformity through the combined design of supply pipe and connecting pipe between the fire extinguishing case and the combined design of temperature sensor and electromagnetic reversing valve and its inside delay module, can be according to the order from near to far, carries out the fire extinguishing agent supply to the fire extinguishing case that the needs cooling of corresponding through other fire extinguishing cases to guarantee that the group battery carries out effective fire extinguishing treatment.
3. This balanced management equipment of group battery inside temperature homogeneity through the combined design of cooling tube and outer fin, can carry out effective heat dissipation to the space that the inboard group battery of heat dissipation frame was located and handle, the combined design of heat dissipation frame surface through-hole and cooling tube surface orifice to and the combined design of temperature sensor and electromagnetic telescopic handle, the cooling liquid in the usable cooling tube carries out immersion liquid cooling fire extinguishing cooling to the group battery and handles, in order to guarantee thoroughly cooling to the group battery, is favorable to reducing the loss of electric automobile battery package.
Drawings
FIG. 1 is a front view showing the internal structure of a battery case according to the present invention;
FIG. 2 is a front view of the internal structure of the bottom case and the heat dissipation frame between the two separators in the battery case according to the present invention;
FIG. 3 is a side view of the internal structure of a heat dissipating frame between two partitions according to the present invention;
FIG. 4 is a top view of a heat dissipating frame structure according to the present invention;
FIG. 5 is a top view of a cooling tube distribution structure between adjacent heat dissipating frames according to the present invention;
FIG. 6 is a side view of a heat dissipating frame in a lowest travel state;
FIG. 7 is a front view of the cooling tube distribution structure on the outer side surface of the heat dissipating frame according to the present invention;
FIG. 8 is a flow chart of the fire suppression box of the present invention;
fig. 9 is a flow chart of the fire extinguishing agent supplying process between fire extinguishing boxes when the internal space of a certain battery pack is at high temperature.
In the figure: 1. a bottom plate; 11. a mounting base; 2. a partition plate; 3. a heat dissipation frame; 31. an inner fin; 32. an outer fin; 33. a through hole; 4. a battery pack; 5. a bottom box; 51. a travel groove; 6. a fire extinguishing box; 61. a nozzle; 62. a supply pipe; 621. an electromagnetic reversing valve; 7. a connecting pipe; 8. an upper cover; 81. a temperature sensor; 82. an electromagnetic telescopic rod; 9. a liquid inlet pipe; 91. a cooling tube; 92. and a liquid outlet pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of the battery pack internal temperature uniformity balance management apparatus is as follows:
example 1: referring to fig. 1-4 and fig. 8-9, an apparatus for managing uniformity of internal temperature of a battery pack includes a bottom plate 1, a partition plate 2, the battery pack 4, and an upper cover 8, wherein the bottom plate 1 and the upper cover 8 are combined to form a box for installing the battery pack 4, the partition plates 2 are distributed in the box to divide the box into a plurality of spaces, the partition plates 2 are hermetically connected with the bottom plate 1 and the upper cover 8, and the partition plates 2 are hermetically installed between the partition plates 2, the battery pack 4 is installed in the spaces, a heat dissipation frame 3 is slidably installed in the spaces up and down, the heat dissipation frame 3 is located at the outer side of the battery pack 4, inner fins 31 distributed vertically are arranged on the inner side surface of the heat dissipation frame 3, the inner fins 31 are used for heat dissipation of the space where the battery pack 4 is located, and simultaneously when a subsequent fire extinguishing agent is cooled, cooling modules are arranged in the interior of the partition plates 2, and the cooling modules are used for heat dissipation of the space where the battery pack 4 is located.
The bottom box 5 is arranged on the lower surface of the bottom plate 1, when the heat dissipation frame 3 does not move downwards, the lower side edge of the heat dissipation frame 3 is in sealing connection with the bottom plate 1 and the mounting seat 11, the space is not communicated with a cavity in the bottom box 5, high-pressure heptafluoropropane gas is filled in the cavity in the bottom box 5, and the heptafluoropropane is a clean gas chemical extinguishing agent which mainly has chemical extinguishment and has physical extinguishment effects; the high-pressure heptafluoropropane gas in the cavity enclosed by the heat dissipation frame 3 in the bottom box 5 can rapidly enter the space where the corresponding battery pack 4 is located after the heat dissipation frame 3 moves downwards, so that the battery pack 4 can be rapidly extinguished.
The bottom surface in the bottom box 5 is provided with a travel groove 51, the side wall of the travel groove 51 is a sealing layer, the travel groove 51 is matched with the lower side edge of the heat dissipation frame 3, and when the heat dissipation frame 3 moves downwards, the heat dissipation frame enters the travel groove 51 and is in contact sealing with the sealing layer.
The inside of the bottom box 5 is provided with a plurality of fire extinguishing boxes 6, liquid carbon dioxide is filled in the fire extinguishing boxes 6 and used for extinguishing and cooling the space where the corresponding battery pack 4 is located, the fire extinguishing boxes 6 are located below the space, the inside of the bottom box 5 is fixedly provided with an installation seat 11, and the battery pack 4 is fixedly installed in the space through the installation seat 11.
The temperature sensor 81 is arranged in the space, the temperature sensor 81 is used for monitoring the temperature of the space where the corresponding battery pack 4 is located, judging whether the internal temperature of the space is normal or not and sending an electrical signal with overhigh temperature or an electrical signal with normal temperature recovery according to the monitored temperature, the electromagnetic telescopic rod 82 is arranged in the upper cover 8, the electromagnetic telescopic rod 82 is controlled by the electromagnetic group to extend and retract the telescopic end of the electromagnetic telescopic rod 82, the telescopic end of the electromagnetic telescopic rod 82 is fixedly connected with the upper surface of the heat dissipation frame 3, the electromagnetic telescopic rod 82 is electrically connected with the temperature sensor 81 in the corresponding space, when the temperature sensor 81 monitors that the temperature is overhigh, a signal is sent to the electromagnetic telescopic rod 82, the electromagnetic telescopic rod 82 is started, and the heat dissipation frame 3 is pushed to move downwards, so that the lower side edge of the heat dissipation frame 3 is in sealing contact with the bottom surface inside the bottom box 5, and the inner side and the outer side of the heat dissipation frame 3 inside the bottom box 5 are sealed and isolated.
The surface of fire extinguishing case 6 is equipped with nozzle 61, and nozzle 61's inside is provided with the solenoid valve, is electric connection between temperature sensor 81 and the solenoid valve, and when temperature sensor 81 monitored the high temperature, sent the signal to the solenoid valve, made the inside solenoid valve of nozzle 61 open after the lower side of heat dissipation frame 3 and bottom box 5 contact.
The surface mounting of fire extinguishing case 6 has supply pipe 62 for supply fire extinguishing agent to fire extinguishing case 6, and the surface of supply pipe 62 is provided with electromagnetic valve 621, is connected with connecting pipe 7 electromagnetic valve 621 and supply pipe 62 cooperation through electromagnetic valve 621 between the supply pipe 62 of adjacent fire extinguishing case 6, can supply fire extinguishing agent to fire extinguishing case 6, and electromagnetic valve 621 cooperates with connecting pipe 7, can pass through connecting pipe 7 to the fire extinguishing case 6 that the cooling was put out to the fire extinguishing agent in a certain fire extinguishing case 6 that needs to cool down.
The temperature sensor 81 is electrically connected with all the electromagnetic directional valves 621, the temperature sensor 81 sends electric signals to the electromagnetic directional valves 621 from near to far, a delay module is arranged in the electromagnetic directional valves 621, after the electromagnetic directional valves 621 receive the electric signals with overhigh temperature sent by the temperature sensor 81, the delay module delays the starting of the electromagnetic directional valves 621, when the electric signals with normal temperature sent by the temperature sensor 81 are not received before the delay aging of the delay module is finished, the electromagnetic directional valves 621 are started when the delay aging of the delay module is finished, the temperature sensor 81 sends the electric signals with normal temperature to the corresponding electromagnetic directional valves 621, the electric signals are not sent to the next electromagnetic directional valves 621, and the delay aging of the delay module is the consumption time of the fire extinguishing agent in the fire extinguishing box 6.
When the temperature in the space where a certain battery pack 4 is located is too high, the corresponding temperature sensor 81 sends a signal to the corresponding electromagnetic directional valve 621, meanwhile, the fire extinguishing agent in the corresponding fire extinguishing box 6 is sprayed out from the nozzle 61 and enters the space where the battery pack 4 is located, fire extinguishing and cooling are carried out on the battery pack 4, when the temperature in the cavity where the corresponding battery pack 4 is located is too high after the fire extinguishing agent in the fire extinguishing box 6 is consumed, the adjacent electromagnetic directional valve 621 is started at the moment, and the fire extinguishing agent in the adjacent fire extinguishing box 6 is supplied to the fire extinguishing box 6 needing fire extinguishing and cooling through the supply pipe 62 and the connecting pipe 7, so that continuous fire extinguishing of the battery pack 4 is realized, and when the temperature in the space where the battery pack 4 is located is recovered to the normal temperature and kept continuously, the temperature sensor 81 sends an electrical signal that the temperature is recovered normally.
Example 2: referring to fig. 1-7, a battery pack internal temperature uniformity balance management device comprises a bottom plate 1, a partition plate 2, a battery pack 4 and an upper cover 8, wherein the bottom plate 1 and the upper cover 8 are combined to form a box body for installing the battery pack 4, a plurality of partition plates 2 are distributed in the box body and divide the box body into a plurality of spaces, the partition plates 2 and the bottom plate 1 and the upper cover 8 and the partition plates 2 are in sealed connection, the battery pack 4 is installed in the spaces, a heat dissipation frame 3 is installed in the spaces in a sliding manner up and down, the heat dissipation frame 3 is positioned at the outer side of the battery pack 4, inner fins 31 which are vertically distributed are arranged on the inner side surface of the heat dissipation frame 3 and are used for heat dissipation of the space where the battery pack 4 is located, meanwhile, when a subsequent fire extinguishing agent is cooled, a cooling module is arranged in the partition plate 2 and used for heat dissipation of the space where the battery pack 4 is located.
The lower surface of bottom plate 1 is provided with the base case 5, the stroke groove 51 has been seted up to the bottom surface of base case 5 inside, the lateral wall in stroke groove 51 is the sealing layer, the lower side looks adaptation of stroke groove 51 and heat dissipation frame 3, when heat dissipation frame 3 moves down, enter into in stroke groove 51, and contact seal with the sealing layer, the inside of base case 5 is provided with a plurality of fire extinguishing cases 6, it has liquid carbon dioxide to fill in the fire extinguishing cases 6, be used for corresponding the fire extinguishing and the cooling in the space in group battery 4 place, fire extinguishing cases 6 are located the below in space, the inside fixed mounting of base case 5 has mount pad 11, group battery 4 passes through mount pad 11 fixed mounting in the space.
The temperature sensor 81 is arranged in the space, the temperature sensor 81 is used for monitoring the temperature of the space where the corresponding battery pack 4 is located, judging whether the internal temperature of the space is normal or not and sending an electrical signal with overhigh temperature or an electrical signal with normal temperature recovery according to the monitored temperature, the electromagnetic telescopic rod 82 is arranged in the upper cover 8, the electromagnetic telescopic rod 82 is controlled by the electromagnetic group to extend and retract the telescopic end of the electromagnetic telescopic rod 82, the telescopic end of the electromagnetic telescopic rod 82 is fixedly connected with the upper surface of the heat dissipation frame 3, the electromagnetic telescopic rod 82 is electrically connected with the temperature sensor 81 in the corresponding space, when the temperature sensor 81 monitors that the temperature is overhigh, a signal is sent to the electromagnetic telescopic rod 82, the electromagnetic telescopic rod 82 is started, and the heat dissipation frame 3 is pushed to move downwards, so that the lower side edge of the heat dissipation frame 3 is in sealing contact with the bottom surface inside the bottom box 5, and the inner side and the outer side of the heat dissipation frame 3 inside the bottom box 5 are sealed and isolated.
The surface of fire extinguishing case 6 is equipped with nozzle 61, and nozzle 61's inside is provided with the solenoid valve, is electric connection between temperature sensor 81 and the solenoid valve, and when temperature sensor 81 monitored the high temperature, sent the signal to the solenoid valve, made the inside solenoid valve of nozzle 61 open after the lower side of heat dissipation frame 3 and bottom box 5 contact.
The outer side surface of the heat dissipation frame 3 is provided with vertical outer fins 32 for dissipating heat in the inner space of the heat dissipation frame 3, and the outer side surface of the outer fins 32 is attached to the partition plate 2; the cooling module inside the partition plate 2 is a cooling pipe 91, the cooling pipe 91 is arranged between the adjacent outer fins 32 in an inverted U shape and is used for radiating heat in the outer fins 32, one side end surface of the cooling pipe 91, which is close to the outer fins 32, is in sealing fit with the opposite surfaces of the two adjacent outer fins 32 and the outer side surface of the heat radiating frame 3, so that the cooling pipe 91 can radiate heat inside the outer fins 32 better, and the cooling pipe 91 is fixedly arranged in the partition plate 2; the inside of the bottom box 5 is provided with a liquid inlet pipe 9 and a liquid outlet pipe 92, one end of a cooling pipe 91 is communicated with the liquid inlet pipe 9, and the other end is communicated with the liquid outlet pipe 92.
The side surface of the heat dissipation frame 3 is provided with a through hole 33, heat in the heat dissipation frame 3 can be directly transferred to the cooling pipe 91, the through hole 33 corresponds to the position of the cooling pipe 91, and the side surface of the cooling pipe 91, which is close to the outer side surface of the heat dissipation frame 3, is provided with a spray hole.
When the heat dissipation frame 3 is in the uppermost travel, the through holes 33 are staggered with the spray holes, when the heat dissipation frame 3 is in the lowermost travel, the through holes 33 are communicated with the spray holes, when the temperature inside the battery pack 4 is still in a high-temperature state after being subjected to fire extinguishing and cooling by the fire extinguishing box 6, the through holes 33 are communicated with the spray holes, cooling liquid inside the cooling pipe 91 directly enters the space where the battery pack 4 is located, the battery pack 4 is cooled, and in the downward movement process of the heat dissipation frame 3, the through holes 33 cannot enter the bottom box 5.
Working principle of battery pack internal temperature uniformity balance management equipment:
when the battery pack 4 is in normal use, the battery pack 4 is fixedly arranged on the surface of the mounting seat 11, the upper cover 8 is fixedly connected with the bottom plate 1, at the moment, the heat dissipation frame 3, the mounting seat 11, the partition plate 2 and the upper cover 8 isolate each battery pack 4 in a separate space, when the battery pack 4 is in operation, the liquid inlet pipe 9 conveys cooling liquid to the cooling pipe 91, when the cooling liquid passes through the outer fins 32, heat in the space where the battery pack 4 absorbed by the inner fins 31 is transferred to the outer fins 32, then the heat is transferred to the cooling liquid, the cooling liquid takes away the heat, and finally the cooling liquid with the heat absorbed enters the liquid outlet pipe 92.
Through the above manner, heat generated during operation of the battery pack 4 is subjected to heat dissipation, when a certain temperature sensor 81 monitors that the temperature in the space where the corresponding battery pack 4 is located is higher than the lowest set value with abnormal temperature, at this time, the temperature sensor 81 sends out an electric signal with overhigh temperature, an electromagnetic telescopic rod 82 is started to push the heat dissipation frame 3 to move towards the bottom box 5, the lower side edge of the heat dissipation frame 3 is in sealing contact with the bottom surface inside the bottom box 5, at this time, the space where the battery pack 4 is located is communicated with the cavity inside the bottom box 5 enclosed by the heat dissipation frame 3, high-pressure heptafluoropropane gas is rapidly filled into the space where the battery pack 4 is located, fire extinguishing is performed on the battery pack 4, an electromagnetic valve in a nozzle 61 on the side surface of a fire extinguishing box 6 corresponding in the space enclosed by the heat dissipation frame 3 is opened, and fire extinguishing agent in the fire extinguishing box 6 is sprayed out, and then enters into the space where the battery pack 4 is located, and fire extinguishing and cooling is performed on the battery pack 4.
When the temperature in the space where a certain battery pack 4 is located is too high, the corresponding temperature sensor 81 sends a signal to the corresponding electromagnetic directional valve 621, meanwhile, the fire extinguishing agent in the corresponding fire extinguishing box 6 is sprayed out from the nozzle 61 and enters the space where the battery pack 4 is located, fire extinguishing and cooling are carried out on the battery pack 4, when the temperature in the cavity where the corresponding battery pack 4 is located is too high after the fire extinguishing agent in the fire extinguishing box 6 is consumed, the adjacent electromagnetic directional valve 621 is started at the moment, and the fire extinguishing agent in the adjacent fire extinguishing box 6 is supplied to the fire extinguishing box 6 needing fire extinguishing and cooling through the supply pipe 62 and the connecting pipe 7, so that continuous fire extinguishing of the battery pack 4 is realized, and when the temperature in the space where the battery pack 4 is located is recovered to the normal temperature and kept continuously, the temperature sensor 81 sends an electrical signal that the temperature is recovered normally.
When the temperature in the space where the battery pack 4 is located is still too high after the fire extinguishing agent in the fire extinguishing box 6 is consumed, at this time, the temperature sensor 81 sends an electric signal to the electromagnetic telescopic rod 82 again, the telescopic end of the electromagnetic telescopic rod 82 stretches again to push the heat dissipation frame 3 to move to the position of the lowest stroke, at this time, the through hole 33 on the surface of the heat dissipation frame 3 is communicated with the spray hole on the surface of the cooling tube 91, and the cooling liquid in the cooling tube 91 enters the space where the battery pack 4 is located through the spray hole and the through hole 33, so that the battery pack 4 is directly subjected to immersion liquid cooling.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a balanced management equipment of group battery inside temperature homogeneity, includes bottom plate (1), baffle (2), group battery (4), upper cover (8), bottom plate (1) and upper cover (8) make up and form the installation group battery (4) box, a plurality of baffle (2) distribute in the box, divide into a plurality of spaces with the box, group battery (4) are installed in the space, its characterized in that: a heat dissipation frame (3) is arranged in the space in a vertically sliding mode, the heat dissipation frame (3) is positioned at the outer side of the battery pack (4), inner fins (31) which are vertically distributed are arranged on the inner side surface of the heat dissipation frame (3), and a cooling module is arranged in the partition plate (2);
the battery pack (4) is fixedly arranged in the space through the mounting seat (11);
a temperature sensor (81) is arranged in the space, an electromagnetic telescopic rod (82) is arranged in the upper cover (8), the telescopic end of the electromagnetic telescopic rod (82) is fixedly connected with the upper surface of the heat dissipation frame (3), and the electromagnetic telescopic rod (82) is electrically connected with the temperature sensor (81) in the corresponding space;
the surface of fire extinguishing case (6) is equipped with nozzle (61), the inside of nozzle (61) is provided with the solenoid valve, temperature sensor (81) with be electric connection between the solenoid valve.
2. The battery pack internal temperature uniformity balance management apparatus according to claim 1, wherein when said heat dissipation frame (3) is not moved downward, the lower side edge of said heat dissipation frame (3) is hermetically connected to said base plate (1) and mounting seat (11), and said space at this time is not communicated with the cavity inside said bottom case (5);
the cavity inside the bottom box (5) is filled with high-pressure heptafluoropropane gas.
3. The battery pack internal temperature uniformity balance management apparatus according to claim 1, wherein a travel groove (51) is provided on the bottom surface inside the bottom case (5), the side wall of the travel groove (51) is a sealing layer, and the travel groove (51) is adapted to the lower side edge of the heat dissipation frame (3).
4. The battery pack internal temperature uniformity balance management apparatus according to claim 1, wherein a supply pipe (62) is mounted on a surface of the fire extinguishing box (6), an electromagnetic directional valve (621) is provided on a surface of the supply pipe (62), and a connection pipe (7) is connected between the supply pipes (62) of adjacent fire extinguishing boxes (6) through the electromagnetic directional valve (621);
the temperature sensors (81) are electrically connected with all the electromagnetic directional valves (621), the temperature sensors (81) send electric signals to the electromagnetic directional valves (621) from the near to the far, a delay module is arranged in the electromagnetic directional valves (621), after the electromagnetic directional valves (621) receive the electric signals with overhigh temperature sent by the temperature sensors (81), the delay module delays the starting of the electromagnetic directional valves (621), and when the electric signals with normal temperature recovery sent by the temperature sensors (81) are not received before the delay aging of the delay module is finished, the electromagnetic directional valves (621) are started after the delay aging of the delay module is finished;
after the temperature sensor (81) sends an electrical signal for recovering the temperature to be normal to the corresponding electromagnetic directional valve (621), the electrical signal is not sent to the next electromagnetic directional valve (621).
5. The battery pack internal temperature uniformity balance management apparatus according to claim 3, wherein an outer side surface of the heat dissipation frame (3) is provided with vertical outer fins (32), and an outer side surface of the outer fins (32) is fitted with the separator (2);
the cooling module inside the partition plate (2) is a cooling pipe (91), the cooling pipe (91) is arranged between the adjacent outer fins (32) in an inverted U shape, and the cooling pipe (91) is fixedly arranged in the partition plate (2);
the inside of base case (5) is provided with feed liquor pipe (9) and drain pipe (92), one end of cooling tube (91) with feed liquor pipe (9) intercommunication, the other end with drain pipe (92) intercommunication.
6. The battery pack internal temperature uniformity balance management apparatus according to claim 5, wherein one side end face of said cooling tube (91) near said outer fins (32) is in sealing fit with the opposite surfaces of the adjacent two outer fins (32) and the outer side surface of the heat dissipation frame (3).
7. The battery pack internal temperature uniformity balance management apparatus according to claim 6, wherein a through hole (33) is opened at a side surface of the heat dissipation frame (3), the through hole (33) corresponds to a position of the cooling tube (91), and a spray hole is opened at a side surface of the cooling tube (91) close to an outer side surface of the heat dissipation frame (3);
when the heat dissipation frame (3) is in the uppermost moving stroke, the through holes (33) are staggered with the spray holes, and when the heat dissipation frame (3) is in the lowermost moving stroke, the through holes (33) are communicated with the spray holes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311054354.XA CN116759710B (en) | 2023-08-22 | 2023-08-22 | Battery pack internal temperature uniformity balance management equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311054354.XA CN116759710B (en) | 2023-08-22 | 2023-08-22 | Battery pack internal temperature uniformity balance management equipment |
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| CN116759710B true CN116759710B (en) | 2023-10-13 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210805958U (en) * | 2019-11-09 | 2020-06-19 | 捷创核仪(北京)科技有限公司 | Power supply device for high-purity germanium power supply system |
| KR102449836B1 (en) * | 2022-05-17 | 2022-10-05 | (주)헤스테크놀로지 | Lithium-ion battery thermal runaway detection and fire extinguishing system using LN2 for ESS improved reliability |
| CN218731291U (en) * | 2022-08-29 | 2023-03-24 | 广州微宏电源科技有限公司 | High-reliability lithium iron phosphate power module |
| CN219203380U (en) * | 2022-12-30 | 2023-06-16 | 浙江中哲新能源科技有限公司 | Box structure for AGV trolley power battery |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210805958U (en) * | 2019-11-09 | 2020-06-19 | 捷创核仪(北京)科技有限公司 | Power supply device for high-purity germanium power supply system |
| KR102449836B1 (en) * | 2022-05-17 | 2022-10-05 | (주)헤스테크놀로지 | Lithium-ion battery thermal runaway detection and fire extinguishing system using LN2 for ESS improved reliability |
| CN218731291U (en) * | 2022-08-29 | 2023-03-24 | 广州微宏电源科技有限公司 | High-reliability lithium iron phosphate power module |
| CN219203380U (en) * | 2022-12-30 | 2023-06-16 | 浙江中哲新能源科技有限公司 | Box structure for AGV trolley power battery |
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