CN113991262B - Energy storage battery overheat protection system - Google Patents
Energy storage battery overheat protection system Download PDFInfo
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- CN113991262B CN113991262B CN202111040330.XA CN202111040330A CN113991262B CN 113991262 B CN113991262 B CN 113991262B CN 202111040330 A CN202111040330 A CN 202111040330A CN 113991262 B CN113991262 B CN 113991262B
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
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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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to an energy storage battery overheating protection system, which comprises a box body and a cover body, wherein the cover body is detachably arranged at the top of the box body; the cover body is formed by connecting a plurality of groups of upper covers matched with the accommodating cavities, each upper cover comprises an upper cover plate, a bottom plate, a metal ring, a lifting plate, a spring, a ring-shaped magnet, a conductive piece, a conductive plate, a sealing ring and a plug rod, the upper cover plate is detachably mounted at the top of the bottom plate, the bottom plate is provided with an insertion plate matched with the insertion groove, and the middle part of the insertion plate is provided with a liquid storage cavity; the energy storage battery overheating protection system provided by the invention not only can realize timely disconnection and cooling of the overheating energy storage battery, but also can ensure normal power supply of other normal energy storage batteries, ensures the use safety of users, has strong applicability, and is suitable for further popularization and application.
Description
Technical Field
The invention relates to the field of battery overheating protection, in particular to an energy storage battery overheating protection system.
Background
Battery (Battery) refers to a device that can convert chemical energy into electrical energy, having a positive electrode and a negative electrode, in a partial space of a cup, tank or other container or composite container that contains an electrolyte solution and metal electrodes to generate an electric current. With the advancement of technology, batteries generally refer to small devices, such as solar cells, that can generate electrical energy. The performance parameters of the battery mainly comprise electromotive force, capacity, specific energy and resistance, the battery is used as an energy source, the battery can obtain current with stable voltage, stable current, long-time stable power supply and little influence from the outside, and the battery has the advantages of simple structure, convenient carrying, simple and convenient charging and discharging operation, stable and reliable performance and great effect in various aspects of modern social life.
When the existing energy storage battery is used, the temperature of the battery can be rapidly increased when the conditions such as aging, short circuit and the like occur; when the battery is overheated, the energy storage battery is easy to combust and explode, which is not beneficial to the safe use of the energy storage battery.
Disclosure of Invention
In order to solve the problems, the invention provides an energy storage battery overheating protection system.
The invention is realized by the following technical scheme:
an energy storage battery overheating protection system comprises a box body and a cover body, wherein the cover body is detachably mounted at the top of the box body, a plurality of groups of accommodating cavities for accommodating energy storage batteries are formed in the box body, inserting grooves are formed in two sides of each accommodating cavity respectively, and a coolant is mounted in each inserting groove;
the cover body is formed by connecting a plurality of groups of upper covers matched with the containing cavity, each upper cover comprises an upper cover plate, a bottom plate, a metal ring, a lifting plate, a spring, a ring-shaped magnet, a conductive piece, a conductive plate, a sealing ring and a plug rod, the upper cover plate is detachably mounted at the top of the bottom plate, the bottom plate is provided with an insertion plate matched with the insertion groove, the middle of the insertion plate is provided with a liquid storage cavity, the upper end and the lower end of the liquid storage cavity are provided with through holes in a penetrating manner, the sealing rings are fixedly mounted in the through holes, the bottom plate is provided with a void avoiding opening used for avoiding a positive electrode and a negative electrode of an energy storage battery, the top of the bottom plate is provided with two groups of metal rings, the middle holes of the metal rings are respectively aligned with the void avoiding opening, the lifting plate is positioned between the upper cover plate and the bottom plate, the spring is mounted between the lifting plate and the bottom plate, the conductive piece is embedded in the lifting plate, the upper end of the conductive piece penetrates through the upper cover plate, the ring-shaped magnet is fixed at the lower end of the conductive piece and is used for being attracted with the metal rings, the plug rod, the left side and the right side of the lifting plate are respectively provided with the plug rod, the plug rod connected between the two plungers and the thin connecting rod connected between the two plungers and the upper end of the plunger rod is fixed on the inner sides of the liquid storage cavity;
when the ring-shaped magnet is contacted and attracted with the metal ring, the plungers at two ends of the plug rod are respectively inserted into the upper sealing ring and the lower sealing ring; when the ring-shaped magnet is separated from the metal ring, the spring elasticity releases the lifting plate to push up, so that the conducting ring is abutted to the conducting plate, and the plunger is pulled out of the sealing ring.
Further, electrically conductive piece includes insulating block, conducting rod and reset spring, the bottom of insulating block is fixed with ring magnet, the bottom of insulating block is equipped with the cavity, installs the conducting block in the cavity, ring magnet is worn out to the lower extreme of conducting block, be equipped with the platform of hanging with ring magnet looks joint on the lateral wall of conducting block, the top of conducting block is connected with the conducting rod, all offer the opening that is used for keeping away empty conducting rod on insulating block and the upper cover plate, the opening on insulating block and the upper cover plate is passed respectively to the upper end of conducting rod, the outside cover of conducting rod is equipped with reset spring, reset spring is located the insulating block, the conducting ring is connected on the conducting rod.
Furthermore, the metal ring is in clearance fit with the insulating block and the upper opening of the upper cover plate.
Furthermore, the annular magnet and the metal ring are provided with insulating layers outside.
Furthermore, the bottom of the inner cavity of the accommodating cavity is provided with flame-retardant collodion cotton.
Furthermore, the connecting slender rod is in clearance fit with a through hole in the middle of the sealing ring, and the plunger is in interference fit with the through hole in the middle of the sealing ring.
Furthermore, the plugboard is in clearance fit with the pluggroove, and the clearance between two sides is 3-5mm; after the cover body is arranged on the box body, the gap between the installation surfaces is 2-4mm.
Furthermore, bosses with the height of 2-4mm are arranged at intervals on the top of the bottom plate, and the bosses are abutted against the top of the box body after the cover body is arranged on the box body.
Further, the coolant is nitrate or ammonium salt; wherein the nitrate or ammonium salt can be selected from ammonium nitrate, ammonium chloride, potassium nitrate, etc.
Compared with the prior art, the invention has the following beneficial effects:
the energy storage battery overheating protection system provided by the invention not only can realize timely disconnection and cooling of the overheating energy storage battery, but also can ensure normal power supply of other normal energy storage batteries, ensures the use safety of users, has strong applicability, and is suitable for further popularization and application.
Drawings
FIG. 1 is a schematic of the present invention;
FIG. 2 is a schematic view of the assembly of a single receiving chamber and upper cover;
FIG. 3 is a sectional view of a conductive member;
FIG. 4 is a schematic structural view of the ring-shaped magnet separated from the metal ring;
FIG. 5 is a partial schematic view of the housing;
FIG. 6 is a schematic structural view of the upper cover;
fig. 7 is a structural schematic diagram of the boss.
The symbols in the figures represent:
a box body-1; a cover body-2; an energy storage battery-3; flame-retardant collodion-4; 5, a coolant; a wire-6; a boss-7; an accommodating cavity-11; a plug groove-12; an upper cover-21; an upper cover plate-211; a bottom plate-212; metal ring-213; a lifter plate-214; a spring-215; a ring magnet-216; conductive element-217; a conductive plate-218; a seal ring-219; a stopper rod-210; a plugboard-2121; a clearance opening-2122; a reservoir-2123; insulating block-2171; conductive mass-2172; conductive rod-2173; return spring-2174; a conductive ring-2175; connecting thin rods-2101; plunger-2102; positive electrode-31; negative electrode-32.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to the attached drawings 1-6, an energy storage battery overheating protection system comprises a box body 1 and a cover body 2, wherein the cover body 2 is detachably mounted at the top of the box body 1, a plurality of groups of accommodating cavities 11 for accommodating energy storage batteries 3 are formed in the box body 1, insertion grooves 12 are respectively formed in two sides of each accommodating cavity 11, and a coolant 5 is mounted in each insertion groove 12; wherein, the coolant 5 is nitrate or ammonium salt; wherein the nitrate or ammonium salt can be selected from ammonium nitrate, ammonium chloride, potassium nitrate, etc. The side wall of the insertion groove 12, which is attached to the energy storage battery 3, is made of a heat-conducting metal material.
The bottom plate 212 is provided with a plug plate 2121 matched with the plug groove 12, and the middle part of the plug plate 2121 is provided with a liquid storage cavity 2123, wherein the liquid storage cavity 2123 is used for storing water; the upper end and the lower end of the liquid storage cavity 2123 are provided with through holes in a penetrating manner, the sealing rings 219 are fixedly mounted in the through holes, and the bottom plate 212 is provided with clearance openings 2122 for avoiding the positive and negative poles of the energy storage battery 3, wherein the positive pole 31 and the negative pole 32 of the energy storage battery 3 are in transition fit with the clearance openings 2122, that is, the positive pole 31 and the negative pole 32 are attached to the metal ring 213; two sets of metal rings 213 are disposed on the top of the bottom plate 212, wherein the metal rings 213 are made of a metal capable of attracting the magnet.
Referring to fig. 7, the insertion plate 2121 is in clearance fit with the insertion groove 12, and the clearance between the two sides is 3-5mm; after the cover body 2 is arranged on the box body 1, the gap between the installation surfaces is 2-4mm; the arrangement can enable the inserting groove 12 to form an air path with the outside, and is beneficial to the liquid in the liquid storage cavity 2123 to flow into the inserting groove 12.
Furthermore, bosses 7 with the height of 2-4mm are arranged at the top of the bottom plate 212 at intervals, and spherical bosses are adopted in the technical scheme; after the cover body 2 is arranged on the box body 1, the lug boss 7 is abutted against the top of the box body 1; namely, after the cover body 2 and the box body 1 are installed through the lug boss 7, a clearance of 2-4mm exists between the two.
The middle holes of the metal rings 213 are aligned with the clearance openings 2122, the lifting plate 214 is located between the upper cover plate 211 and the bottom plate 212, the spring 215 is fixedly installed between the lifting plate 214 and the bottom plate 212, the conductive member 217 is embedded in the lifting plate 214, the upper end of the conductive member 217 penetrates through the upper cover plate 211, and the ring-shaped magnet 216 is fixed at the lower end of the conductive member 217 and used for attracting the metal rings 213; wherein, the ring-shaped magnet 216 and the metal ring 213 are provided with an insulating layer on the outer portion. The left and right parts of the lifting plate 214 are respectively provided with a plug rod 210, the plug rod 210 consists of two plungers 2102 and a connecting thin rod 2101 connected between the two plungers 2102, and the plug rod 210 is inserted into the liquid storage cavity 2123 through an upper end sealing ring 219; wherein, the connecting slender rod 2101 is in clearance fit with the through hole in the middle of the sealing ring 219, and the bilateral clearance is about 4mm, so as to facilitate the circulation of gas; the plunger 2102 is in interference fit with a through hole in the middle of the sealing ring 219 so as to be beneficial to blocking an opening in the middle of the sealing ring 219. Conductive ring 2175 is disposed on conductive member 217, and conductive plate 218 is fixed on the top inside of upper plate 211.
When the ring-shaped magnet 216 contacts and attracts the metal ring 213, the spring 215 is compressed, and the plungers 2102 at the two ends of the plunger 210 are inserted into the upper and lower sealing rings 219, respectively; when the ring magnet 216 is separated from the metal ring 213, the spring 215 releases the lifting plate 214 to push up, so that the conductive ring 2175 abuts against the conductive plate 218, and the plunger 2102 is withdrawn from the sealing ring 219.
Referring to the attached drawings 1-2, when the energy storage battery overheating protection system is in normal use, the energy storage batteries 3 are installed in the accommodating cavity 11, the positive and negative electrodes of each energy storage battery 3 are connected in series through the lead 6 and then connected with an external voltage stabilizer, and current is output and supplied after passing through the voltage stabilizer; in a normal state, the annular magnet 216 and the metal ring 213 are attracted, the spring 215 is in a compressed state, the conductive pieces 217 are respectively connected with the positive pole and the negative pole of the energy storage battery 3 to conduct electricity out for supplying power, water is stored in the liquid storage cavity 2123, and the plungers 2102 at the upper end and the lower end of the plug rod 210 are respectively inserted into the sealing rings 219 at the upper end and the lower end to prevent the water in the liquid storage cavity 2123 from flowing out;
referring to fig. 3, when the temperature of the energy storage battery 3 rises, the internal temperature is conducted to the metal rings 213 and the ring-shaped magnets 216 on the two sides through the positive electrode 31 and the negative electrode 32, the magnetism of the ring-shaped magnets 216 is weakened along with the rise of the temperature, when the temperature of the energy storage battery 3 is too high, the attraction force between the ring-shaped magnets 216 and the metal rings 213 is reduced, the elastic force on the springs 215 is released to lift the lifting plate 214, the lifting plate 214 is lifted to separate the conductive members 217 from the positive electrode and the negative electrode (i.e. to disconnect the group of overheated magnetic energy batteries), the plungers 2102 on the upper and lower ends of the plunger 210 are pulled out of the sealing ring 219, and the lifting plate 214 is lifted to make the conductive ring 2175 adhere to the conductive plate 218, the conductive ring 2175 adheres to the conductive plate 218 to make the conductive members 217 on the two sides directly connect, that is to skip the energy storage battery 3 which is not used for overheating, and the rest energy storage batteries 3 are connected in series for power supply; when the energy storage battery is overheated, the overheated energy storage battery can be automatically disconnected, and other energy storage batteries can normally supply power;
when the plungers 2102 at the upper end and the lower end of the plug rod 210 are pulled out of the sealing ring 219, air passages are formed at the upper end and the lower end of the liquid storage cavity 2123, water in the liquid storage cavity 2123 flows into the coolant 5 from an opening in the middle of the lower end sealing ring 219, the coolant 5 absorbs heat in the process of dissolving in water, and the energy storage battery 3 is cooled through the side wall of the box body 1; through the arrangement, timely disconnection and cooling of the overheated energy storage battery can be realized, and normal power supply of other energy storage batteries is realized.
Referring to fig. 3 and 6, the conductive member 217 includes an insulating block 2171, a conductive block 2172, a conductive rod 2173 and a return spring 2174, the bottom of the insulating block 2171 is fixed with the ring-shaped magnet 216, the bottom of the insulating block 2171 is provided with a cavity, the conductive block 2172 is installed in the cavity, the lower end of the conductive block 2172 penetrates through the ring-shaped magnet 216, the sidewall of the conductive block 2172 is provided with a hanging platform clamped with the ring-shaped magnet 216, the top of the conductive block 2172 is connected with the conductive rod 2173, the insulating block 2171 and the upper cover plate 211 are both provided with openings for avoiding the hollow conductive rod 2173, and the upper end of the conductive rod 2173 respectively penetrates through the openings of the insulating block 2171 and the upper cover plate 211; the metal ring 213 is in clearance fit with the opening of the insulating block 2171 and the upper cover plate 211. This arrangement facilitates the telescoping of the conductive mass 2172 and conductive rod 2173; the outside of the conducting rod 2173 is sleeved with a return spring 2174, the return spring 2174 is positioned in the insulating block 2171, wherein the surface of the return spring 2174 is provided with an insulating layer, and the conducting ring 2175 is connected to the conducting rod 2173; since the lower end of the conductive block 2172 penetrates through the ring magnet 216, when the ring magnet 216 and the metal ring 213 attract each other, the conductive block 2172 is pressed on the positive and negative electrodes first, so as to ensure the contact connection between the conductive block 2172 and the positive and negative electrodes, when the ring magnet 216 and the metal ring 213 adhere to each other and attract each other, the conductive block 2172 is pressed into the insulating block 2171, and the return spring 2174 is in a compressed state, so that the conductive block 2172 can be ensured to adhere to the positive and negative electrodes when the ring magnet 216 and the metal ring 213 adhere to each other.
Further, the bottom of the inner cavity of the accommodating cavity 11 is provided with flame-retardant collodion 4; the arrangement of the flame-retardant collodion 4 can play the roles of buffering and shock absorption, and the energy storage battery 3 is prevented from vertically shaking and being damaged by collision in the vertical falling process to a certain extent.
As a further improvement, a pressure sensor is mounted on top of the lifting plate 214, offset from the conductive plate 218 and conductive ring 2175, wherein the pressure sensor is connected to an external display unit; when the spring 215 releases the lifting plate 214 to stand on the table, the pressure sensor between the lifting plate 214 and the upper cover plate 211 is pressed to output a signal, and the external display device gives a prompt to remind the user.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An energy storage battery overheating protection system comprises a box body (1) and a cover body (2), wherein the cover body (2) is detachably mounted at the top of the box body (1), and is characterized in that a plurality of groups of accommodating cavities (11) for accommodating energy storage batteries (3) are formed in the box body (1), inserting grooves (12) are formed in two sides of each accommodating cavity (11), and a coolant (5) is mounted in each inserting groove (12);
the cover body (2) is formed by connecting a plurality of groups of upper covers (21) matched with the accommodating cavity (11), each upper cover (21) comprises an upper cover plate (211), a bottom plate (212), a metal ring (213), a lifting plate (214), a spring (215), a ring-shaped magnet (216), a conductive piece (217), a conductive plate (218), a sealing ring (219) and a plug rod (210), the upper cover plate (211) is detachably mounted at the top of the bottom plate (212), a plug plate (2121) matched with the plug groove (12) is arranged on the bottom plate (212), a liquid storage cavity (2123) is arranged in the middle of the plug plate (2121), through holes are formed in the upper end and the lower end of the liquid storage cavity (2123) in a penetrating manner, the sealing rings (219) are fixedly mounted in the through holes, void-avoiding openings (2122) for avoiding the void-storage batteries (3) are formed in the bottom plate (212), two groups of metal rings (213) are arranged at the top of the bottom plate (212), the middle of the metal rings (213) are respectively aligned with the void-avoiding openings (2122), the metal rings (214) are positioned between the upper cover plate (211) and the bottom plate (212), the lifting plate (214), the spring (214) is embedded between the lifting plate (214) and the lifting plate (214), the upper end of the conductive piece (217) penetrates through the upper cover plate (211), the annular magnet (216) is fixed at the lower end of the conductive piece (217) and is used for attracting a metal ring (213), the left and right sides of the lifting plate (214) are respectively provided with a plug rod (210), each plug rod (210) consists of two plungers (2102) and a connecting slender rod (2101) connected between the two plungers (2102), the plug rods (210) are inserted into the liquid storage cavity (2123) through an upper end sealing ring (219), the conductive piece (217) is provided with a conductive ring (2175), and the conductive plate (218) is fixed at the top of the inner side of the upper cover plate (211);
when the ring-shaped magnet (216) is contacted and attracted with the metal ring (213), the plungers (2102) at two ends of the plug rod (210) are respectively inserted into the upper sealing ring (219) and the lower sealing ring (219); when the ring-shaped magnet (216) is separated from the metal ring (213), the spring (215) elastically releases the lifting plate (214) to jack up, so that the conductive ring (2175) is abutted to the conductive plate (218), and the plunger (2102) is pulled out of the sealing ring (219);
the conductive piece (217) comprises an insulating block (2171), a conductive block (2172), a conductive rod (2173) and a return spring (2174), a ring-shaped magnet (216) is fixed at the bottom of the insulating block (2171), a cavity is formed in the bottom of the insulating block (2171), the conductive block (2172) is installed in the cavity, the lower end of the conductive block (2172) penetrates through the ring-shaped magnet (216), a hanging table clamped with the ring-shaped magnet (216) is arranged on the side wall of the conductive block (2172), the top of the conductive block (2172) is connected with the conductive rod (2173), openings used for avoiding the hollow conductive rod (2173) are formed in the insulating block (2171) and the upper cover plate (211), the upper end of the conductive rod (2173) penetrates through the openings in the insulating block (2171) and the upper cover plate (211) respectively, the return spring (2174) is sleeved on the outer side of the conductive rod (2173), the return spring (2174) is located in the insulating block (2171), and the conductive rod (2175) is connected to the upper cover plate (211);
the connecting slender rod (2101) is in clearance fit with a through hole in the middle of the sealing ring (219), and the plunger (2102) is in interference fit with the through hole in the middle of the sealing ring (219);
the insertion plate (2121) is in clearance fit with the insertion groove (12), and the clearance between the two sides is 3-5mm; after the cover body (2) is arranged on the box body (1), the gap between the installation surfaces is 2-4mm;
bosses (7) with the height of 2-4mm are arranged at the top of the bottom plate (212) at intervals, and after the cover body (2) is arranged on the box body (1), the bosses (7) are abutted against the top of the box body (1);
the coolant (5) is nitrate or ammonium salt.
2. The system of claim 1, wherein the metal ring (213) is a clearance fit with the opening in the insulating block (2171) and the top cover plate (211).
3. An energy storage battery overheat protection system as claimed in claim 1, wherein the ring magnet (216) and the metal ring (213) are provided with an insulating layer on the outside.
4. An energy storage battery overheating protection system according to claim 1, wherein the bottom of the inner cavity of the accommodating cavity (11) is provided with a flame retardant collodion (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111040330.XA CN113991262B (en) | 2021-09-06 | 2021-09-06 | Energy storage battery overheat protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111040330.XA CN113991262B (en) | 2021-09-06 | 2021-09-06 | Energy storage battery overheat protection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113991262A CN113991262A (en) | 2022-01-28 |
| CN113991262B true CN113991262B (en) | 2023-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111040330.XA Active CN113991262B (en) | 2021-09-06 | 2021-09-06 | Energy storage battery overheat protection system |
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| CN115714215B (en) * | 2023-01-09 | 2023-04-14 | 河南锂动电源有限公司 | Soft package battery pack with thermal runaway management function |
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| CN113991262A (en) | 2022-01-28 |
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