CN112002858B - Explosion-proof battery - Google Patents
Explosion-proof battery Download PDFInfo
- Publication number
- CN112002858B CN112002858B CN202010677322.5A CN202010677322A CN112002858B CN 112002858 B CN112002858 B CN 112002858B CN 202010677322 A CN202010677322 A CN 202010677322A CN 112002858 B CN112002858 B CN 112002858B
- Authority
- CN
- China
- Prior art keywords
- explosion
- battery module
- proof
- box body
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
Abstract
The application provides an explosion-proof battery, which comprises a first explosion-proof box body, a second explosion-proof box body and a third explosion-proof box body; the first battery module is arranged in the first explosion-proof box body and comprises a first area and a second area, the first area comprises all electrodes in the first battery module, and the second area comprises all pressure relief valves in the first battery module; the second battery module is arranged in the second explosion-proof box body and comprises a third area and a fourth area, the third area comprises all electrodes in the second battery module, and the fourth area comprises all pressure relief valves in the second battery module; and the power supply control module is arranged in the third explosion-proof box body. The explosion-proof battery provided by the embodiment of the invention can realize explosion-proof protection of the battery module, and effectively improves the safety reliability and the explosion-proof protection level of the explosion-proof battery.
Description
Technical Field
The application relates to the technical field of battery safety application, in particular to an explosion-proof battery.
Background
At present, a high-capacity explosion-proof battery used in an underground coal mine usually takes a special or increased-safety lead-acid storage battery as a main battery, and has the defects of small energy density, low voltage, few cycle times, serious environmental pollution and the like, and GB 3836 series and IEC60079 series explosion-proof standards have a plurality of limitations on the use of the lead-acid storage battery, and a good solution for supplying power to the underground high-capacity storage battery is not provided. In recent years, equipment such as various underground robots, intelligent dangerous mixture monitoring and monitoring systems, pure electric auxiliary transportation equipment and the like based on new technologies such as 5G, internet of things and the like gradually emerge, the demand of the equipment on battery capacity is increased, however, at present, no high-safety and reliability explosion-proof battery matched with the equipment is available, and the current situation becomes a technical bottleneck restricting the research and development application of the underground robot equipment.
Disclosure of Invention
The present application is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the purpose of this application is to provide an explosion-proof battery, can realize the explosion-proof protection to battery module, has effectively promoted explosion-proof battery's fail safe nature and explosion-proof protection level.
In order to achieve the above object, an explosion-proof battery according to an embodiment of the present application includes: the first explosion-proof box body, the second explosion-proof box body and the third explosion-proof box body; the first battery module is arranged in the first explosion-proof box body and comprises a first area and a second area, the first area comprises all electrodes in the first battery module, and the second area comprises all pressure release valves in the first battery module; the second battery module is arranged in the second explosion-proof box body and comprises a third area and a fourth area, the third area comprises all electrodes in the second battery module, and the fourth area comprises all pressure release valves in the second battery module; the power supply control module is arranged in the third explosion-proof box body; the first pouring layer covers the first area of the first battery module, the first pouring layer is provided with a first opening, and the first opening corresponds to the pressure release valve of the first battery module, so that the pressure release valve of the first battery module can exhaust air through the first opening; the second pouring layer at least covers the second area of the first battery module, wherein the impact strength of the second pouring layer is smaller than that of the first battery module when the pressure relief valve of the first battery module is opened, so that the pressure relief valve of the first battery module breaks through the second pouring layer when the pressure relief valve of the first battery module is opened, the second pouring layer also covers the first area, and the impact strength of the second pouring layer is smaller than that of the first pouring layer; a third potting layer covering the third area of the second battery module, the third potting layer having a second opening corresponding to the pressure relief valve of the second battery module, such that the pressure relief valve of the second battery module can vent gas through the second opening; a fourth pouring layer at least covering the fourth area of the second battery module, wherein the impact strength of the fourth pouring layer is smaller than the impact strength of the second battery module when a pressure relief valve is opened, so that the pressure relief valve of the second battery module breaks through the fourth pouring layer when the pressure relief valve is opened, the fourth pouring layer also covers the third area, and the impact strength of the fourth pouring layer is smaller than the impact strength of the third pouring layer; a fifth pouring layer covering the second pouring layer, wherein the fifth pouring layer is provided with a third opening at the position of the pressure release valve of the first battery module, the third opening corresponds to the pressure release valve of the first battery module, so that the pressure release valve of the first battery module can exhaust gas through the third opening, and the impact strength of the fifth pouring layer is greater than that of the first pouring layer; a sixth pouring layer covering the fourth pouring layer, wherein the sixth pouring layer is provided with a fourth opening at the position of the pressure release valve of the second battery module, the fourth opening corresponds to the pressure release valve of the second battery module, so that the pressure release valve of the second battery module can exhaust gas through the fourth opening, and the impact strength of the sixth pouring layer is greater than that of the third pouring layer; a first pressure sensor disposed within the first explosion-proof enclosure; the first pressure relief device is arranged on the anti-explosion cover of the first anti-explosion box body and used for relieving the pressure in the first anti-explosion box body to the outside when the pressure in the first anti-explosion box body is increased; the second pressure sensor is arranged in the second explosion-proof box body; the second pressure relief device is arranged on the anti-explosion cover of the second anti-explosion box body and used for relieving the pressure in the second anti-explosion box body to the outside when the pressure in the second anti-explosion box body is increased; the first supporting piece is arranged in the first explosion-proof box body and used for supporting and fixing the battery module; the second supporting piece is arranged in the second explosion-proof box body and used for supporting and fixing the second battery module; the third supporting piece is arranged in the third explosion-proof box body and is used for supporting and fixing the power supply control module; the first pouring layer, the second pouring layer, the third pouring layer, the fourth pouring layer, the fifth pouring layer and the sixth pouring layer are made of silica gel or epoxy resin.
The embodiment of the application provides an explosion-proof battery, through dispose first battery module in first explosion-proof box, first battery module includes first region and second region, first region includes all electrodes in first battery module, the second region includes all relief valves in first battery module, dispose second battery module in second explosion-proof box, second battery module includes third region and fourth region, the third region includes all electrodes in the second battery module, the fourth region includes all relief valves in the second battery module, dispose power control module in third explosion-proof box, realize power control module, the isolated configuration of first battery module and second battery module, when effectively reducing power control module and first battery module when breaking down when producing the detonation accident, and when power control module and second battery module break down, to the influence each other, realize power control module and first battery module, and the double-explosion-proof mechanism of power control module and second battery module, effectively promote explosion-proof battery's fail safe nature and protection level. In addition, the battery in the explosion-proof battery is divided into two modules to be placed in different explosion-proof boxes, so that the safety coefficient of the explosion-proof battery can be greatly improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an explosion-proof battery according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a battery module according to another embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a power control module according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a battery pack management and protection unit according to another embodiment of the present application; and
fig. 5 is a schematic structural view of an explosion-proof battery according to another embodiment of the present application.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the application include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic structural diagram of an explosion-proof battery according to an embodiment of the present application.
Referring to fig. 1, the explosion-proof battery 10 includes: a first explosion-proof case 11, a second explosion-proof case 18 and a third explosion-proof case 12; a first battery module 13 disposed in the first explosion-proof case 11, wherein the first battery module 13 includes a first region including all of the electrodes 131 in the first battery module 13 and a second region including all of the pressure relief valves 132 in the first battery module 13; a second battery module 181 disposed in the second explosion-proof case 18, wherein the second battery module 181 includes a third region including all the electrodes 1811 in the second battery module 181 and a fourth region including all the pressure relief valves 1812 in the second battery module 181; and a power control module 14 disposed in the third explosion-proof housing 12.
In the embodiment of the present application, the explosion-proof battery 10 is exemplified as a lithium battery, or may be any other possible rechargeable battery, which is not limited in this respect.
The first battery module 13 and the second battery module 181 include a battery pack and a battery pack management and protection unit matched with the battery pack, wherein the battery pack may be formed by connecting single lithium batteries in series or in parallel.
In the embodiment of the invention, the first battery module 13 and the second battery module 181 are the same battery module.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a battery module according to another embodiment of the present invention, in which a first battery module and a second battery module include: a battery pack 201 formed by connecting single lithium batteries in series or in parallel, and a battery pack management and protection unit 202 associated with the battery pack, referring to fig. 3, fig. 3 is a schematic structural diagram of a power supply control module according to another embodiment of the present invention, and the power supply control module may include, for example, an electrical circuit switch unit 301 and a communication circuit switch unit 302.
The electrical circuit switch unit 301 and the communication circuit switch unit 302 in the power supply control module are each composed of a certain number of relays, a certain number of fuses, and a manual mechanical switch.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a battery pack management and protection unit according to another embodiment of the present application, and the battery pack management and protection unit 202 includes a management unit 20201 formed by a battery management system and a protection unit 20202 formed by a relay and a fuse, where the management unit 20201 monitors information such as voltage, current, temperature and deformation of a single battery in the battery pack 201 in real time and controls an operating state of the protection unit 20202.
In some embodiments of the present application, referring to fig. 5, fig. 5 is a schematic structural diagram of an explosion-proof battery according to another embodiment of the present invention, further including: a first supporter 20 disposed in the first explosion-proof case 11, the first supporter 20 being used to support and fix the first battery module 13; a second supporting member 182 disposed in the second explosion-proof case 18, the second supporting member 182 supporting and fixing the second battery module 181; the third supporting member 21 is disposed in the third explosion-proof case 12, and the third supporting member 21 is used for supporting and fixing the power control module 14, that is, the first battery module 13 can be fixedly mounted in the first explosion-proof case 11 via the first supporting member 20, the second battery module 181 can be fixedly mounted in the second explosion-proof case 18 via the second supporting member 182, and the power control module 14 can be fixedly mounted in the third explosion-proof case 12 via the third supporting member 21, so that the mounting stability of the first battery module 13, the second battery module 181 and the power control module 14 is effectively ensured.
In one embodiment of the present application, referring to fig. 5, the explosion-proof battery 10 further includes: a first potting layer 133 covering a first area of the first battery module 13, the first potting layer 133 having a first opening corresponding to the pressure release valve 132 of the first battery module 13, so that the pressure release valve 132 of the first battery module 13 can exhaust gas through the first opening; a second potting layer 134 covering at least a second region of the first battery module 13, wherein the impact strength of the second potting layer 134 is smaller than the impact strength of the first battery module 13 when the pressure relief valve 132 is opened, so that the second potting layer 134 is broken when the pressure relief valve 132 of the first battery module 13 is opened; a third potting layer 1813 covering a third region of the second battery module 181, the third potting layer 1813 having a second opening corresponding to the pressure release valve 1812 of the second battery module 181, so that the pressure release valve 1812 of the second battery module 181 can exhaust gas through the second opening; and a fourth potting layer 1814 covering at least a fourth region of the second battery module 181, wherein the fourth potting layer 1814 has an impact strength smaller than that of the second battery module 181 when the pressure release valve 1812 is opened, so that the pressure release valve 1812 of the second battery module 181 is opened to burst the fourth potting layer 1814.
In the embodiment of the application, the first potting layer covering the first area of the first battery module and the second potting layer covering at least the second area of the first battery module are configured for the explosion-proof battery, so that the potting protection of the first battery module is realized by adopting the first potting layer covering the first area of the first battery module and the second potting layer covering at least the second area of the first battery module. Similarly, the third potting layer covering the third area of the second battery module and the fourth potting layer at least covering the fourth area of the second battery module are configured for the explosion-proof battery, so that the potting protection of the second battery module is realized by adopting the third potting layer covering the third area of the second battery module and the fourth potting layer at least covering the fourth area of the second battery module.
From this, in the embodiment of this application, still can realize the explosion-proof protection that the encapsulation protection and the explosion-proof protection of first battery module and second group battery combined together, realize power control module group and first battery module, and the two explosion-proof mechanisms of power control module group and second battery module, and control all on-off control unit disconnection by power control module group, when can ensureing that explosive environment appears, except that first battery module and the second battery module through the encapsulation processing, other exposed conductor is all not electrified, thereby realize having blocked the contact of ignition source with explosive gas from the source, effectively promote explosion-proof battery's fail safe nature and explosion-proof protection level.
Generally, the main potential ignition source of the lithium battery is a charged component (for example, the electrode 131 of the first battery module 13 or the electrode 1811 of the second battery module 181 in this application), that is, the positive and negative terminals of the single lithium batteries in the first battery module 13 and the second battery module 181, so in this embodiment of the application, by covering the first potting layer 133 in the first region of the first battery module 13, the corresponding electrode 131 portion of the single battery is effectively protected by the first potting layer 133, and by providing the second potting layer 134 at least covering the second region of the first battery module 13, the corresponding electrode 1811 portion of the single battery is also protected by the second potting layer 134, and similarly, by covering the third potting layer 1813 in the third region of the second battery module 181, the corresponding electrode 1811 portion of the single battery is effectively protected by the third potting layer 1813, and by covering the fourth potting layer 1814 at least covering the fourth region of the second battery module 181, the corresponding electrode 1814 portion of the single battery is also protected by the fourth potting layer 1812. Thereby, effective encapsulation protection is achieved.
For example, after the first battery module 13 is mounted in the first explosion-proof case 11 in the explosion-proof housing, the first battery module 13 and the first support member 20 are sealed with a sealing compound, the bottom and the side of the sealing compound are tightly coupled to the case of the first explosion-proof case 11, and a certain free space is formed between the upper surface of the sealing compound and the explosion-proof cover 102.
After the second battery module 181 is mounted in the second explosion-proof case 18 in the explosion-proof housing, the second battery module 181 and the second support member 182 are sealed with a sealing compound, the bottom and the side of the sealing compound are tightly combined with the case of the second explosion-proof case 18, and a certain free space is formed between the upper surface of the sealing compound and the explosion-proof cover 102.
In the embodiment of the present application, the impact strength of the second potting layer 134 is smaller than the impact strength of the first battery module 13 when the pressure release valve 132 is opened, so that the first battery module 13 breaks the second potting layer 134 when the pressure release valve 132 is opened, and therefore, after the gas generated by the internal chemical reaction of the battery under extreme conditions is discharged to the box body through the pressure release valve 132, the gas can be discharged to the external environment through the first pressure release device 17 arranged on the explosion-proof cover, and the gas is prevented from accumulating inside the first explosion-proof box body 11. Similarly, the impact strength of the fourth encapsulation layer 1814 is configured to be smaller than the impact strength when the pressure release valve 1812 of the second battery module 181 is opened, so that the pressure release valve 1812 of the second battery module 181 breaks through the fourth encapsulation layer 1814 when opened, and therefore, after gas generated by the internal chemical reaction of the battery in an extreme case is discharged to the box body through the pressure release valve 1812, the gas can be discharged to the external environment through the second pressure release device 185 arranged on the explosion-proof cover, and the gas is prevented from accumulating inside the second explosion-proof box body 18.
In the embodiment of the present application, the first encapsulation layer 133 and the third encapsulation layer 1813 can effectively protect the positive and negative terminals of the single lithium battery, so as to effectively isolate the potential ignition source from the explosive gas, thereby greatly reducing the occurrence probability of extreme accidents such as combustion and explosion, and improving the safety protection performance of the explosion-proof battery 10.
In one embodiment of the present application, referring to fig. 5, the first explosion proof case 11, and the second and third explosion proof cases 18 and 12 include: a case body 101; the explosion-proof cover 102 is arranged on the box body 101, wherein the explosion-proof cover 102 is connected with the box body 101 through bolts 103, free spaces are respectively arranged between the upper surfaces of the pouring layers covering the first battery module 13 and the second battery module 181 and the explosion-proof cover 102, and sealing treatment is carried out between the explosion-proof cover 102 and the box body 101 by adopting sealing rubber strips, so that the sealing performance of the whole explosion-proof battery 10 is improved, and other parts (such as a pressure sensor) can be arranged in an auxiliary mode through the free spaces, so that the explosion-proof function of the explosion-proof battery 10 is enriched in an auxiliary mode.
The first explosion-proof box body 11 can be regarded as a sealing chamber, the second explosion-proof box body 18 can be regarded as a sealing chamber, and the third explosion-proof box body 12 can be regarded as a wiring chamber, referring to fig. 5, the first battery module 13 and the power control module 14 are electrically connected through the first lead device 15 between the first explosion-proof box body 11 and the third explosion-proof box body 12, and the second battery module 181 and the power control module 14 are electrically connected through the second lead device 19 between the second explosion-proof box body 18 and the third explosion-proof box body 12, and when the concentration of the explosive dangerous mixture in the environment exceeds the standard, all the switch control units are controlled to be disconnected by the power control module 14.
The third explosion-proof case 12 is further provided with a third lead device (not shown in the figure) for connecting the explosion-proof battery 10 with an external circuit.
In some embodiments of the present application, the first lead assembly 15, the second lead assembly 19, and the third lead assembly may be formed from a number of glan heads.
In some embodiments, referring to fig. 2 to 5 together, the first battery module 13 is electrically connected to the electrical circuit switch unit 301 and the communication circuit switch unit 302 in the power control module 14 through the first lead wire device 15; the second battery module 181 is electrically connected to the electrical circuit switch unit 301 and the communication circuit switch unit 302 in the power control module 14 through the second lead wire device 19, respectively; an electrical circuit switch unit 301 and a communication circuit switch unit 302 in the power supply control module 14 are electrically connected with external electrical circuits and communication circuits of the first explosion-proof box body 11, the second explosion-proof box body 18 and the third explosion-proof box body 12 through third lead devices respectively.
The first lead device 15, the second lead device 18 and the third lead device are mainly used for fastening and sealing cables, the fastening means that the cables are locked through the gland, the cables do not generate axial displacement and radial rotation, normal connection of the cables is guaranteed, the sealing means IP protection which is often called as dustproof and waterproof, the first lead device 15, the second lead device 18 and the third lead device can be further applied to cable waterproof joints with shields, cables with shields are applicable, armored cable waterproof joints with armored cables are applicable, and the waterproof cable joint is applicable to the armored cables, and the waterproof cable joint is applicable to explosion-proof cable waterproof joints in dangerous areas such as mines.
In one embodiment of the present application, referring to fig. 5, further comprising: a fifth potting layer 135 covering the second potting layer 134, wherein the fifth potting layer 135 has a second opening at the position of the pressure release valve 132 of the first battery module 13, the second opening corresponds to the pressure release valve 132 of the first battery module 13, so that the pressure release valve 132 of the first battery module 13 can exhaust gas through the second opening, and the impact strength of the fifth potting layer 135 is greater than the impact strength of the first potting layer 133; a sixth encapsulating layer 1815 covering the fourth encapsulating layer 1814, wherein the sixth encapsulating layer 1815 has a fourth opening at the position of the pressure relief valve 1812 of the second battery module 181, the fourth opening corresponds to the pressure relief valve 1812 of the second battery module 181, so that the pressure relief valve 1812 of the second battery module 181 can exhaust air through the fourth opening, and the impact strength of the sixth encapsulating layer 1815 is greater than that of the third encapsulating layer 1813.
In one embodiment of the present application, the first potting layer 133, the second potting layer 134, and the fifth potting layer 135 fill the space between the first battery module 13 and the side wall and the bottom of the first explosion-proof case 11, so that the first battery module 13 is tightly attached to the case body 101 of the first explosion-proof case 11 and the first battery module 13 is fixed; the third potting layer 1813, the fourth potting layer 1814 and the sixth potting layer 1815 fill the space between the second battery module 181 and the side wall and the bottom of the second explosion-proof case 18, so that the second battery module 181 is closely attached to and fixes the second battery module 181 to the case body 101 of the second explosion-proof case 18.
In an embodiment of the present application, the first encapsulation layer 133, the second encapsulation layer 134, the fifth encapsulation layer 135, the third encapsulation layer 1813, the fourth encapsulation layer 1814, and the sixth encapsulation layer 1815 are made of silicone or epoxy resin, which can simplify the manufacturing process of the encapsulation layer, and can ensure a good encapsulation protection effect, and have good practicability and applicability.
The impact strength of the fifth sealing layer 135 is configured to be greater than that of the first sealing layer 133, so that the fifth sealing layer 135 can form an outermost protection layer and further protect the second sealing layer 134, that is, the fifth sealing layer can further enhance the protection functions of the first sealing layer and the second sealing layer, and due to the protection and reinforcement effects of the fifth sealing layer, the damage degree of the second sealing layer can be effectively limited, that is, the damage part can be limited to the pressure release valve of the first battery module 13 to the greatest extent, so that the destructive influence on the first sealing layer is reduced to a great extent, and the reliability of the sealing explosion protection method is improved. Similarly, the impact strength of the sixth encapsulation layer 1815 is configured to be greater than that of the third encapsulation layer 1813, so that the sixth encapsulation layer 1815 can form an outermost protection and further protect the fourth encapsulation layer 1814, that is, the sixth encapsulation layer can further enhance the protection functions of the third encapsulation layer and the fourth encapsulation layer, and due to the protection and reinforcement effect of the sixth encapsulation layer, the damage degree of the fourth encapsulation layer can be effectively limited, that is, the damage part can be limited to the pressure relief valve of the second battery module 181 to the maximum extent, the destructive influence on the third encapsulation layer is greatly reduced, and the reliability of the encapsulation explosion-proof protection method is improved.
In the embodiment of the present invention, the battery in the explosion-proof battery 10 is divided into two battery modules, that is, the first battery module 13 and the second battery module 181, and the first battery module 13 and the second battery module 181 are respectively placed in the first explosion-proof box body 11 and the second explosion-proof box body 18, so that the safety coefficient of the explosion-proof battery can be greatly improved, and after the battery modules are sealed by pouring, once a problem occurs, the whole module must be replaced, therefore, the battery is divided into two modules to be placed in different explosion-proof box bodies for pouring, the number of batteries in a single module is effectively divided, and the loss cost can be effectively reduced. It should be noted that the smaller the number of the single batteries which are sealed together, the lower the capacity of the sealing module is, and the higher the safety coefficient is, so that the safety coefficient of the explosion-proof battery can be greatly improved by dividing the battery in the explosion-proof battery into two modules which are placed in different explosion-proof boxes for sealing.
In one embodiment of the present application, as shown in fig. 5, further includes: a pressure sensor 16 disposed in the first explosion-proof case 11; a first pressure relief means 17 provided on the explosion-proof cover 102 of the first explosion-proof case 11 for relieving the pressure in the first explosion-proof case 11 to the outside when the pressure in the first explosion-proof case 11 increases; a second pressure sensor 184 disposed in the second explosion-proof case 18; and a second pressure relief device 185 provided on the explosion-proof cover 102 of the second explosion-proof case 18 for relieving the pressure in the second explosion-proof case 18 to the outside when the pressure in the second explosion-proof case 18 increases.
The first pressure relief device 17 and the second pressure relief device 185 may be, for example, a flame arrester, a check valve, or a combination of a flame arrester and a check valve, without limitation.
That is, by monitoring the pressure conditions in the first explosion-proof box body 11 and the second explosion-proof box body 18 respectively, the explosive risk caused by the over-high pressure of the gas in the first explosion-proof box body 11 and/or the second explosion-proof box body 18 can be effectively avoided.
In this embodiment, by configuring the first battery module in the first explosion-proof box, the first battery module includes a first region and a second region, the first region includes all electrodes in the first battery module, the second region includes all pressure relief valves in the first battery module, configure the second battery module in the second explosion-proof box, the second battery module includes a third region and a fourth region, the third region includes all electrodes in the second battery module, the fourth region includes all pressure relief valves in the second battery module, configure the power control module in the third explosion-proof box, implement the power control module, the isolated configuration of the first battery module and the second battery module, effectively reduce the impact on each other when the power control module generates a deflagration accident and when the second battery module generates a failure, implement the power control module and the first battery module, and the double explosion-proof mechanism of the power control module and the second battery module, effectively improve the safety reliability and the explosion-proof protection level of the explosion-proof battery. In addition, the battery among the explosion-proof battery falls into two modules and places in the explosion-proof box of difference, can improve explosion-proof battery's factor of safety greatly to the battery module is through watering the back, in case go out the problem just must change whole module, consequently, falls into two modules with the battery and places and water in the explosion-proof box of difference and seal, has effectively separated the battery quantity of single module, can effectively reduce loss cost.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (4)
1. An explosion-proof battery, comprising:
the first explosion-proof box body, the second explosion-proof box body and the third explosion-proof box body;
the first battery module is arranged in the first explosion-proof box body and comprises a first area and a second area, the first area comprises all electrodes in the first battery module, and the second area comprises all pressure release valves in the first battery module;
the second battery module is arranged in the second explosion-proof box body and comprises a third area and a fourth area, the third area comprises all electrodes in the second battery module, and the fourth area comprises all pressure release valves in the second battery module;
the power supply control module is arranged in the third explosion-proof box body;
the first pouring layer covers the first area of the first battery module, the first pouring layer is provided with a first opening, and the first opening corresponds to the pressure release valve of the first battery module, so that the pressure release valve of the first battery module can exhaust air through the first opening;
the second pouring layer at least covers the second area of the first battery module, wherein the impact strength of the second pouring layer is smaller than that of the first battery module when the pressure relief valve of the first battery module is opened, so that the pressure relief valve of the first battery module breaks through the second pouring layer when the pressure relief valve of the first battery module is opened, the second pouring layer also covers the first area, and the impact strength of the second pouring layer is smaller than that of the first pouring layer;
a third potting layer covering the third area of the second battery module, the third potting layer having a second opening corresponding to the pressure relief valve of the second battery module, such that the pressure relief valve of the second battery module can vent gas through the second opening;
a fourth pouring layer at least covering the fourth area of the second battery module, wherein the impact strength of the fourth pouring layer is smaller than the impact strength of the second battery module when a pressure relief valve is opened, so that the pressure relief valve of the second battery module breaks through the fourth pouring layer when the pressure relief valve is opened, the fourth pouring layer also covers the third area, and the impact strength of the fourth pouring layer is smaller than the impact strength of the third pouring layer;
a fifth pouring layer covering the second pouring layer, wherein the fifth pouring layer is provided with a third opening at the position of the pressure release valve of the first battery module, the third opening corresponds to the pressure release valve of the first battery module, so that the pressure release valve of the first battery module can exhaust gas through the third opening, and the impact strength of the fifth pouring layer is greater than that of the first pouring layer;
a sixth pouring layer covering the fourth pouring layer, wherein the sixth pouring layer is provided with a fourth opening at the position of the pressure release valve of the second battery module, the fourth opening corresponds to the pressure release valve of the second battery module, so that the pressure release valve of the second battery module can exhaust gas through the fourth opening, and the impact strength of the sixth pouring layer is greater than that of the third pouring layer;
the first pressure sensor is arranged in the first explosion-proof box body;
the first pressure relief device is arranged on the anti-explosion cover of the first anti-explosion box body and used for relieving the pressure in the first anti-explosion box body to the outside when the pressure in the first anti-explosion box body is increased;
a second pressure sensor disposed within the second explosion-proof enclosure;
the second pressure relief device is arranged on the anti-explosion cover of the second anti-explosion box body and used for relieving the pressure in the second anti-explosion box body to the outside when the pressure in the second anti-explosion box body is increased;
the first supporting piece is arranged in the first explosion-proof box body and used for supporting and fixing the battery module;
the second support piece is arranged in the second explosion-proof box body and is used for supporting and fixing the second battery module;
the third supporting piece is arranged in the third explosion-proof box body and is used for supporting and fixing the power supply control module;
the first, second, third, fourth, fifth and sixth casting layers are silica gel or epoxy resin.
2. The explosion-proof battery of claim 1 wherein the first, second and third explosion-proof cases comprise:
a box body;
the explosion-proof cover is arranged on the box body, wherein the explosion-proof cover is connected with the box body through bolts and covers the first battery module and the second battery module, and free space is reserved between the upper surface of the casting layer and the explosion-proof cover.
3. The explosion-proof battery as defined in claim 1, further comprising:
the first battery module and the power supply control module are electrically connected through a first lead device between the first explosion-proof box body and the third explosion-proof box body;
the second battery module and the power supply control module are electrically connected through a second lead device between the second explosion-proof box body and the third explosion-proof box body;
and a third lead device is further arranged on the third explosion-proof box body and used for connecting the explosion-proof battery and an external circuit.
4. The explosion-proof battery as set forth in claim 1, wherein the first potting layer, the second potting layer and the fifth potting layer fill the space between the first battery module and the side wall and the bottom of the first explosion-proof case body, so that the first battery module is tightly attached to the case body of the first explosion-proof case body and the first battery module is fixed;
and the third pouring layer, the fourth pouring layer and the sixth pouring layer are filled in the space between the second battery module and the side wall and the bottom of the second explosion-proof box body, so that the second battery module is tightly attached to and fixed on the box body of the second explosion-proof box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010677322.5A CN112002858B (en) | 2020-07-14 | 2020-07-14 | Explosion-proof battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010677322.5A CN112002858B (en) | 2020-07-14 | 2020-07-14 | Explosion-proof battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112002858A CN112002858A (en) | 2020-11-27 |
| CN112002858B true CN112002858B (en) | 2022-11-25 |
Family
ID=73466505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010677322.5A Active CN112002858B (en) | 2020-07-14 | 2020-07-14 | Explosion-proof battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112002858B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022012377A1 (en) * | 2020-07-14 | 2022-01-20 | 华瑞矿业科技有限公司 | Explosion-proof battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025146A (en) * | 2016-08-11 | 2016-10-12 | 苏州安尚新能源科技有限公司 | Flame and explosion-proof battery |
| CN207082578U (en) * | 2017-07-24 | 2018-03-09 | 山东高佳新能源有限公司 | A kind of heat-insulating, fire-preventing anti-explosion battery group |
| WO2019118295A2 (en) * | 2017-12-13 | 2019-06-20 | Cadenza Innovation, Inc. | Lithium ion battery |
| CN209730030U (en) * | 2019-04-16 | 2019-12-03 | 上海申传电气股份有限公司 | A kind of synthesis explosion-proof protection structure of lithium battery power supply |
| CN210744004U (en) * | 2019-09-04 | 2020-06-12 | 青岛超能动力有限公司 | Battery explosion-proof module |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101191660B1 (en) * | 2010-11-08 | 2012-10-17 | 에스비리모티브 주식회사 | Battery module |
| CN203225294U (en) * | 2013-05-02 | 2013-10-02 | 南阳市一通防爆电气有限公司 | Flame-proof type power box for mineral danger-evading facility |
| US10745144B2 (en) * | 2014-02-28 | 2020-08-18 | The Boeing Company | Systems and methods for containing ignition within a battery housing |
| CN208193425U (en) * | 2018-04-13 | 2018-12-07 | 霍州煤电集团亿能电气股份有限公司 | A kind of flame-proof mine lithium-ions battery power supply |
| KR102646854B1 (en) * | 2018-10-19 | 2024-03-11 | 삼성에스디아이 주식회사 | Battery module |
| CN111384343A (en) * | 2018-12-30 | 2020-07-07 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN209298274U (en) * | 2019-02-02 | 2019-08-23 | 上海申传电气股份有限公司 | A kind of lithium ion battery power supply of high explosive-proof grade |
| CN109713190B (en) * | 2019-02-02 | 2023-06-23 | 上海申传电气股份有限公司 | Explosion-proof lithium battery power supply with two output types and working method thereof |
| CN210182427U (en) * | 2019-04-16 | 2020-03-24 | 上海申传电气股份有限公司 | Cast-in explosion-proof structure of lithium battery power supply |
| CN110416458B (en) * | 2019-08-05 | 2021-11-12 | 安徽相源新能源有限公司 | Anti-explosion lithium battery cell battery pack with enhanced heat dissipation and manufacturing method thereof |
-
2020
- 2020-07-14 CN CN202010677322.5A patent/CN112002858B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025146A (en) * | 2016-08-11 | 2016-10-12 | 苏州安尚新能源科技有限公司 | Flame and explosion-proof battery |
| CN207082578U (en) * | 2017-07-24 | 2018-03-09 | 山东高佳新能源有限公司 | A kind of heat-insulating, fire-preventing anti-explosion battery group |
| WO2019118295A2 (en) * | 2017-12-13 | 2019-06-20 | Cadenza Innovation, Inc. | Lithium ion battery |
| CN209730030U (en) * | 2019-04-16 | 2019-12-03 | 上海申传电气股份有限公司 | A kind of synthesis explosion-proof protection structure of lithium battery power supply |
| CN210744004U (en) * | 2019-09-04 | 2020-06-12 | 青岛超能动力有限公司 | Battery explosion-proof module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112002858A (en) | 2020-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210182427U (en) | Cast-in explosion-proof structure of lithium battery power supply | |
| CN112002856B (en) | Explosion-proof battery | |
| CN1178314C (en) | Secondary cell and assembly sealing plate for secondary cell | |
| CN100588020C (en) | Secondary battery and battery module | |
| CN212991237U (en) | Explosion-proof battery | |
| CN112002848B (en) | Explosion-proof battery | |
| CN112002850B (en) | Explosion-proof battery | |
| CN112002854B (en) | Explosion-proof battery | |
| CN112002851B (en) | Explosion-proof battery | |
| CN112002857A (en) | Explosion-proof battery | |
| CN214428736U (en) | Explosion-proof battery power supply | |
| CN112002858B (en) | Explosion-proof battery | |
| CN115989607A (en) | Electric energy storage device | |
| CN112002852A (en) | Explosion-proof battery | |
| CN112563639A (en) | Explosion-proof battery power supply | |
| CN112002859B (en) | Explosion-proof battery | |
| CN212991235U (en) | Explosion-proof battery | |
| CN212991232U (en) | Explosion-proof battery | |
| CN212991233U (en) | Explosion-proof battery | |
| CN212991236U (en) | Explosion-proof battery | |
| CN212991225U (en) | Explosion-proof battery | |
| CN212991226U (en) | Explosion-proof battery | |
| WO2022012377A1 (en) | Explosion-proof battery | |
| CN112531279B (en) | Explosion-proof battery power supply | |
| CN101375456B (en) | Fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |