CN112002859B - Explosion-proof battery - Google Patents
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- CN112002859B CN112002859B CN202010677328.2A CN202010677328A CN112002859B CN 112002859 B CN112002859 B CN 112002859B CN 202010677328 A CN202010677328 A CN 202010677328A CN 112002859 B CN112002859 B CN 112002859B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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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
- H01M10/42—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
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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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Abstract
The application provides an explosion-proof battery, which comprises an explosion-proof box body, a first box body and a second box body, wherein the first box body and the second box body are respectively connected with the explosion-proof box body; a power supply control module; a first wire lead device; a second wire guiding means; the first battery module is arranged in the first box body and comprises a first area and a second area; the first pouring layer covers the first area, and a first opening of the first pouring layer corresponds to a pressure release valve of the first battery module; and a second encapsulation layer covering at least the second area; the second battery module is arranged in the second box body and comprises a third area and a fourth area; a third pouring layer covering the third area, wherein a second opening of the third pouring layer corresponds to a pressure release valve of the second battery module; a fourth encapsulation layer covering at least the fourth area. Therefore, the realization cost and the weight of the explosion-proof protection of the battery can be reduced while the safety reliability and the explosion-proof protection grade of the explosion-proof battery are effectively improved.
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 and pure electric auxiliary transportation equipment based on new technologies such as 5G and the Internet of things gradually emerge, the requirement of the equipment on battery capacity is increased, however, at present, no high-safety-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 the application is to provide an explosion-proof battery, which can effectively improve the safety reliability and the explosion protection level of the explosion-proof battery and reduce the realization cost and the weight of the explosion protection of the battery.
In order to achieve the above object, an explosion-proof battery provided in an embodiment of the present application includes: the explosion-proof box body and the first box body and the second box body are respectively connected with the explosion-proof box body; the first battery module is arranged in the first protection body, and comprises a first area and a second area, wherein 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; a first potting layer covering the first area of the first battery module, the first potting layer having a first opening corresponding to the pressure relief valve of the first battery module, such that the pressure relief valve of the first battery module can vent gas 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; the second battery module is arranged in the second box body, and comprises a third area and a fourth area, wherein 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; 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 power supply control module is arranged in the explosion-proof box body; the first lead device is arranged between the first box body and the explosion-proof box body; the second lead device is arranged between the second box body and the explosion-proof box body; a first pressure sensor disposed in the first tank; the first pressure relief device is arranged on the box cover of the first box body and used for relieving the pressure in the first box body to the outside when the pressure in the first box body is increased; a second pressure sensor disposed in the second tank; the second pressure relief device is arranged on the box cover of the second box body and used for relieving the pressure in the second box body to the outside when the pressure in the second box body is increased; the first supporting piece is arranged in the first box body and used for supporting and fixing the first battery module; the second supporting piece is arranged in the second box body and used for supporting and fixing the second battery module; and the third supporting piece is arranged in the explosion-proof box body and is used for supporting and fixing the power supply control module.
The explosion-proof battery provided by the embodiment of the application, through configuring an explosion-proof box body and a first box body and a second box body which are respectively connected with the explosion-proof box body aiming at the explosion-proof battery, a first battery module arranged in the first box body, a first pouring layer covering a first area of the first battery module, a second pouring layer at least covering a second area of the first battery module, a second battery module arranged in the second box body, a third pouring layer covering a third area of the second battery module, and a fourth pouring layer at least covering a fourth area of the second battery module, a first pouring layer covering the first area of the first battery module and a second pouring layer at least covering the second area of the first battery module are adopted, a third pouring layer covering the third area of the second battery module and a fourth pouring layer at least covering the fourth area of the second battery module are adopted, the pouring protection of the first battery module and the second battery module is realized, the pouring protection of the explosion-proof box body is realized, the explosion-proof battery module can effectively protect the weight of the explosion-proof battery module, the explosion-proof battery can effectively reduce the weight of the explosion-proof battery module, the explosion-proof battery, the effective control cost of the explosion-proof battery, and the effective control mechanism can effectively improve the explosion-proof battery efficiency, and the explosion-proof efficiency of the explosion-proof battery. 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. 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 foregoing 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; and
fig. 4 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 embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function 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: the explosion-proof box comprises a first box body 11, a second box body 18 and an explosion-proof box body 12, wherein the explosion-proof box body 12 is respectively connected with the first box body 11 and the second box body 18; a first battery module 13 disposed in the first 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 relief valves 132 in the first battery module 13; 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 second battery module 181 disposed in the second case 18, wherein the second battery module 181 includes a third region including all of the electrodes 1811 in the second battery module 181 and a fourth region including all of the pressure release valves 1812 in the second battery module 181; a third encapsulating layer 1813 covering a third area of the second battery module 181, wherein the third encapsulating layer 1813 has 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 release air 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 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 is opened to burst the fourth potting layer 1814; a power supply control module 14 disposed in the explosion-proof case 12; a first lead wire device 15 provided between the first case 11 and the explosion-proof case 12; and a second lead means 19 disposed between the second case 18 and the explosion-proof case 12.
In the embodiment of the present application, the explosion-proof battery 10 is exemplified as a lithium battery, or may be any other rechargeable battery, which is not limited thereto.
The first battery module 13 and the second battery module 181 in the embodiment of the present application are respectively disposed in the first box 11 and the second box 18, and disposed in the explosion-proof box 12 connected to the first box 11 and the second box 18, and the power control module 14 is disposed in the explosion-proof box 12, so that the power control module 14 can control all the switch control units to be disconnected when an explosive environment occurs, and it is ensured that other exposed conductors are not electrified except the first battery module 13 and the second battery module 181 which are subjected to encapsulation, thereby achieving blocking contact between an ignition source and an explosive gas from a source. And only the box body configured with the power supply control module 14 is set as an explosion-proof box body 12, and the first box body 11 and the second box body 18 respectively configured with the first battery module 13 and the second battery module 181 are configured as common box bodies, so that the implementation cost and weight of a battery explosion-proof mechanism can be effectively reduced, not only the isolation configuration of the power supply control module 14 and the first battery module 13 as well as the second battery module 181 is realized, but also the economy of the implementation of the explosion-proof mechanism and the balance between the explosion-proof control effects are effectively improved.
The explosion-proof case 12 may be welded to the first case 11 and the second case 18, respectively, or the explosion-proof case 12 may be welded to the side surfaces of the first case 11 and the second case 18, respectively, without limitation.
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 an embodiment of the present invention, the first battery module 13 and the second battery module 181 may be one type of 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.
When the concentration of the explosive and dangerous mixture in the environment is detected to exceed the standard, the power supply control module 14 can control all the electric circuit switch units 301 and the communication circuit switch units 302 to be disconnected, and then the battery pack management and protection unit 202 is controlled to be disconnected from the power supply control module, so that the exposed conductors in the explosion-proof battery are not electrified except for the first battery module and the second battery module which are protected by pouring.
In some embodiments of the present application, the second potting layer 134 also covers the first area, and the impact strength of the second potting layer 134 is less than the impact strength of the first potting layer 133; the fourth encapsulation layer 1814 also covers the third area, and the impact strength of the fourth encapsulation layer 1814 is smaller than that of the third encapsulation layer 1813.
In some embodiments of the present application, referring to fig. 4, a fifth sealing layer 135 covering the second sealing layer 134, where the fifth sealing layer 135 has a second opening at the position of the pressure relief valve 132, the second opening corresponds to the pressure relief valve 132, so that the pressure relief valve 132 can exhaust gas through the second opening, and the impact strength of the fifth sealing layer 135 is greater than that of the first sealing layer 133, that is, the fifth sealing layer 135 is a sealing layer covering the second sealing layer 134, and plays a role in protecting the second sealing layer 134 and the first sealing layer 133. Similarly, the sixth potting layer 1815 covers the fourth potting layer 1814, where the sixth potting layer has a fourth opening at the position of the pressure release valve of the second battery module, and 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 potting layer is greater than that of the third potting layer, that is, the sixth potting layer 1815 is a layer of potting layer covering the fourth potting layer 1814, and plays a role in protecting the fourth potting layer 1814 and the third potting layer 1813.
In some embodiments 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 may be made of silicone or epoxy, which can simplify the manufacturing process of the encapsulation layer, ensure a better encapsulation protection effect, and have better practicability and applicability, or may be made of any other possible encapsulation material, which is not limited thereto.
In some embodiments of the present application, the first, second, and fifth potting layers 133, 134, and 135 fill the space between the first battery module 13 and the side walls and the bottom of the first case 11, so that they are closely attached to the case body of the first case 11 and fix the first battery module 13. Similarly, 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 case 18, so that they are closely attached to the case body of the second case 18 and fix the second battery module 181.
It can be understood that, in general, the main potential ignition source of the lithium battery is the charged component (for example, the electrode 131 of the first battery module 13 and 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, in this application, by disposing the first potting layer 133 in the first area of the first battery module 13, the corresponding positive and negative terminal portions of the single batteries are effectively protected by the first potting layer 133, and disposing the second potting layer 134 at least in the second area of the first battery module 13, the protection of the first potting layer 133 is also performed by the second potting layer 134, and the protection of the pressure release valve 132 portion is also performed, so that the effective encapsulation protection is performed, similarly, by disposing the third potting layer 1813 in the third area of the second battery module 181, and by disposing the fourth potting layer 1814 in the fourth area of the second battery module 181, and also performing the encapsulation of the encapsulation material 1814. Thereby, effective encapsulation protection is achieved.
For example, after the first battery module 13 is mounted in the first case 11 in the housing case, the first battery module 13 and the first support 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 case 11, and a 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 case 18 in the housing, the second battery module 181 and the second support 182 are sealed with a sealing compound, the bottom and the side of the sealing compound are tightly coupled to the case of the second case 18, and a 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 configured to be smaller than the impact strength of the first battery module 13 when the pressure release valve 132 is opened, so that the pressure release valve 132 of the first battery module 13 breaks the second potting layer 134 when 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 relief device 17 arranged on the explosion-proof cover, and the gas is prevented from accumulating inside the first 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 being accumulated inside the second box body 18.
In this embodiment, the first encapsulation layer 133 can effectively protect the positive and negative terminals of the first battery module 13, and the third encapsulation layer 1813 can effectively protect the positive and negative terminals of the second battery module 181, so as to effectively isolate a potential ignition source from an explosive gas, thereby greatly reducing the occurrence probability of accidents such as combustion and explosion, and improving the safety protection performance of the explosion-proof battery 10.
The impact strength of the fifth potting layer 135 is configured to be greater than the impact strength of the first potting layer 133, so that the fifth potting layer 135 can form an outermost protection and a further protection to the second potting layer 134. That is to say, the fifth encapsulation layer 135 can further enhance the protection function of the first encapsulation layer 133 and the second encapsulation layer 134, and due to the protection and reinforcement effect of the fifth encapsulation layer 135, the damage degree of the second encapsulation layer 134 can be effectively limited, that is, the damage part can be limited at the relief valve 132 to the maximum extent, so that the destructive influence on the first encapsulation layer 133 is reduced to a great extent, and the reliability of the encapsulation explosion-proof 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 a further protection for the fourth encapsulation layer 1814. That is, the sixth encapsulation layer 1815 may further enhance the protection function of the third encapsulation layer 1813 and the fourth encapsulation layer 1814, and due to the protection and reinforcement function of the sixth encapsulation layer 1815, the damage degree of the fourth encapsulation layer 1814 can be effectively limited, that is, the damage part can be limited at the pressure relief valve 1812 to the maximum extent, so that the destructive influence on the third encapsulation layer 1813 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 box 11 and the second box 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 boxes for sealing by 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 by casting, 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 boxes for sealing by casting.
In some embodiments of the present application, referring to fig. 4, the first and second cases include a case body 101, and a cover 102 disposed on the case body 101, wherein the cover 102 is connected to the case body 101 by bolts 103, and an upper surface of a potting layer covering the first battery module 13 and the second battery module 181 in the first case 11 and the second case 18, respectively, has a free space with the cover 102.
Free spaces are formed between the upper surfaces of the potting layers covering the first battery module 13 and the second battery module 181 and the case cover 102, respectively, so that a certain buffer space is provided for the accumulation of gas pressure, and other components (such as a pressure sensor) can be arranged in an auxiliary manner, so that the explosion-proof function of the explosion-proof battery 10 can be enriched in an auxiliary manner.
In some embodiments of the present application, referring to fig. 4, the explosion-proof case includes an explosion-proof case body 104, and an explosion-proof case cover 105 disposed on the explosion-proof case body 104, wherein the explosion-proof case cover 102 is connected to the explosion-proof case body 104 by bolts 103.
The first box 11 can be regarded as an encapsulation cavity, the second box 18 can be regarded as an encapsulation cavity, the explosion-proof box 12 connected with the first box 11 and the second box 18 can be regarded as a wiring cavity, referring to fig. 4, the first box 11 and the explosion-proof box 12 are electrically connected with the first battery module 13 and the power control module 14 through the first lead device 15, the second box 18 and the explosion-proof box 12 are electrically connected with the second battery module 181 and the power control module 14 through the second lead device 19, and when the concentration of the explosive dangerous mixture in the environment exceeds the standard, the power control module 14 controls all the switch control units to be switched off.
The explosion-proof case 12 is further provided with a third lead device (not shown) 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 and fig. 4 together, the first battery module 13 is electrically connected to the electrical circuit switching unit 301 and the communication circuit switching unit 302 in the power control module 14 via the first lead wire device 15, respectively; 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; the electric circuit switch unit 301 and the communication circuit switch unit 302 in the power supply control module 14 are electrically connected with the external electric circuits and the communication circuits of the first case 11, the second case 18 and the explosion-proof case 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 Glan, so that the cables do not generate axial displacement and radial rotation, the normal connection of the cables is guaranteed, the sealing means IP protection in common, namely dust and water prevention, the first lead device 15, the second lead device 18 and the third lead device can also be applied to cable waterproof joints with shields, and the first lead device, the second lead device and the third lead device are also applied to cables with shields, armored cable waterproof joints suitable for armored cables, explosion-proof cable waterproof joints suitable for dangerous areas such as mines and the like.
In some embodiments of the present application, referring to fig. 4, the explosion-proof battery 10 further includes:
a pressure sensor 16 disposed in the first case 11; a first pressure relief means 17 provided on the explosion-proof cover 102 of the first tank 11 for relieving the pressure in the first tank 11 to the outside when the pressure in the first tank 11 increases; a second pressure sensor 184 disposed in the second tank 18; and a second pressure relief device 185 provided on the explosion-proof cover 102 of the second case 18 for relieving the pressure in the second 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.
The first pressure sensor 16 and the second pressure sensor 184 are devices or apparatuses capable of sensing pressure signals and converting the pressure signals into usable output electric signals according to a certain rule.
In some embodiments of the present application, referring to fig. 4, the explosion-proof battery 10 further includes:
a first support 20 disposed in the first case 11, the first support 20 being used to support and fix the first battery module 13; a second supporting member 182 disposed in the second case 18, the second supporting member 182 supporting and fixing the second battery module 181; the third support 21 is disposed in the explosion-proof case 12, the third support 21 is used for supporting and fixing the power supply control module 14, that is, the first battery module 13 can be fixedly installed in the first case 11 via the first support 20, the second battery module 181 can be fixedly installed in the second case 18 via the second support 182, and the power supply control module 14 can be fixedly installed in the explosion-proof case 12 via the third support 21, so that the stability of the installation of the first battery module 13, the second battery module 181 and the power supply control module 14 is effectively guaranteed. Can be convenient for the heat dissipation of first battery module 13, second battery module 181 and power control module 14 simultaneously, effectively avoid the risk that the high temperature of first battery module 13 second battery module 181 and power control module 14 leads to, effectively promoted the holistic security performance of explosion-proof battery 10 from the angle of accuse temperature.
In this embodiment, an explosion-proof box and a first box and a second box which are respectively connected with the explosion-proof box are configured for an explosion-proof battery, a first battery module is arranged in the first box, a first pouring layer covers a first area of the first battery module, a second pouring layer covers a second area of the first battery module, a second battery module is arranged in the second box, a third pouring layer covers a third area of the second battery module, and a fourth pouring layer covers a fourth area of the second battery module, the first pouring layer covers the first area of the first battery module and the second pouring layer covers the second area of the first battery module, the third pouring layer covers the third area of the second battery module and the fourth pouring layer covers the fourth area of the second battery module are adopted, sealing protection of the first battery module and the second battery module is realized, the explosion-proof box is adopted to realize protection of a power supply, weight protection of the battery module can be effectively reduced, the weight of the battery module can be effectively protected, the cost of the battery module can be effectively reduced, the explosion-proof battery module can be effectively protected, the cost of the explosion-proof battery module can be effectively reduced, the explosion-proof battery module can be effectively protected, and the explosion-proof battery module can be effectively exposed, and the explosion-proof battery module can be effectively controlled when the explosion-proof battery module, and the explosion-proof battery module can be effectively controlled by other explosion-proof battery module. 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. In addition, the battery among the explosion-proof battery falls into two modules and places in the 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 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, "a plurality" means 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 in the process, and alternate implementations are included within the scope of the preferred embodiment of the present application 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 of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like 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 present 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 (6)
1. An explosion-proof battery, comprising:
the explosion-proof box body and the first box body and the second box body are respectively connected with the explosion-proof box body;
the first battery module is arranged in the first 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;
a first potting layer covering the first area of the first battery module, the first potting layer having a first opening corresponding to the pressure relief valve of the first battery module, such that the pressure relief valve of the first battery module can vent gas 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 the impact strength of the first battery module when the pressure release valve is opened, so that the pressure release valve of the first battery module breaks through the second pouring layer when the pressure release 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 the impact strength of the first pouring layer;
the second battery module is arranged in the second box body, the second battery module 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;
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 power supply control module is arranged in the explosion-proof box body;
the first lead device is arranged between the first box body and the explosion-proof box body;
the second lead device is arranged between the second box body and the explosion-proof box body;
a first pressure sensor disposed in the first tank;
the first pressure relief device is arranged on the box cover of the first box body and used for relieving the pressure in the first box body to the outside when the pressure in the first box body is increased;
a second pressure sensor disposed in the second tank;
the second pressure relief device is arranged on the box cover of the second box body and used for relieving the pressure in the second box body to the outside when the pressure in the second box body is increased;
the first supporting piece is arranged in the first box body and used for supporting and fixing the first battery module;
the second supporting piece is arranged in the second box body and used for supporting and fixing the second battery module;
and the third supporting piece is arranged in the explosion-proof box body and is used for supporting and fixing the power supply control module.
2. The explosion-proof battery of claim 1 wherein the first, second, third, fourth, fifth and sixth potting layers are silicone or epoxy.
3. The explosion-proof battery as defined in claim 1, wherein the explosion-proof case comprises:
an explosion-proof box body;
and the explosion-proof box cover is arranged on the explosion-proof box body and is connected with the explosion-proof box body through bolts.
4. The explosion-proof battery as set forth in claim 1, wherein the first case and the second case comprise:
a box body;
the box cover is arranged on the box body and is connected with the box body through bolts, the upper surface of a pouring layer covering the first battery module in the first box body and the upper surface of a pouring layer covering the second battery module in the second box body are respectively provided with free spaces with the box cover.
5. The explosion-proof battery as set forth in claim 1, wherein,
the first battery module and the power supply control module are electrically connected through a first lead device between the first box body and the 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 box body and the explosion-proof box body;
and a third lead device is also arranged on the explosion-proof box body and is used for connecting the explosion-proof battery with an external circuit.
6. 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 case to closely attach the first battery module to the case body of the first case and fix the first battery module;
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 box body, so that the second battery module is tightly attached to the box body of the second box body and the second battery module is fixed.
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| CN202010677328.2A CN112002859B (en) | 2020-07-14 | 2020-07-14 | Explosion-proof battery |
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| CN202010677328.2A CN112002859B (en) | 2020-07-14 | 2020-07-14 | Explosion-proof battery |
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| CN112002859B true CN112002859B (en) | 2022-11-25 |
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| WO2022012377A1 (en) * | 2020-07-14 | 2022-01-20 | 华瑞矿业科技有限公司 | Explosion-proof battery |
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