CN112563639A - Explosion-proof battery power supply - Google Patents
Explosion-proof battery power supply Download PDFInfo
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- CN112563639A CN112563639A CN202011192976.5A CN202011192976A CN112563639A CN 112563639 A CN112563639 A CN 112563639A CN 202011192976 A CN202011192976 A CN 202011192976A CN 112563639 A CN112563639 A CN 112563639A
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- explosion
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- box body
- battery module
- power supply
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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 power supply, which comprises a battery module arranged in a first explosion-proof box body, wherein the battery module comprises a first area and a second area, the first area comprises all electrodes in the battery module, and the second area comprises all pressure release valves in the battery module; the first pouring layer covers the first area of the battery module, the first pouring layer is provided with a first opening, the first opening corresponds to the pressure release valve, so that the pressure release valve can exhaust through the first opening, the power supply control module is arranged in the second explosion-proof box body, and the gas processing device is arranged in the first explosion-proof box body and is used for processing gas released in the thermal runaway process of the battery module. The explosion-proof protection that encapsulation protection and explosion-proof protection combined together is realized to realize the isolation configuration of power control module group and battery module, and realize the gas handling mechanism to first explosion-proof box, effectively reduce the influence of battery thermal runaway release gas to box peripheral environment, promote the holistic safety in application of explosion-proof battery power.
Description
Technical Field
The application relates to the technical field of battery safety application, in particular to an explosion-proof battery power supply.
Background
At present, a high-capacity explosion-proof battery power supply used in a coal mine is generally composed of a large number of single batteries, and a power supply box can contain and protect a battery pack. When extreme faults such as thermal runaway occur in the single battery, a large amount of gas can be generated and released, the released gas accumulates in the power box to cause the box to have the risk of explosive accidents due to overlarge pressure, great potential safety hazards are brought to the safe operation of the battery power supply, and no good solution is provided in the industry at present, and the problem needs to be solved urgently.
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 power supply, so that the explosion-proof protection combining the pouring protection and the explosion-proof protection is realized, the isolation configuration of a power supply control module and a battery module is realized, a gas treatment mechanism aiming at a first explosion-proof box body is realized, the influence of battery thermal runaway releasing gas on the peripheral environment of the box body is effectively reduced, and the overall application safety of the explosion-proof battery power supply is improved.
In order to achieve the above object, an explosion-proof battery power supply provided by the embodiment of the present application includes: the first explosion-proof box body and the second explosion-proof box body; the 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 battery module, and the second area comprises all pressure relief valves in the battery module; the first pouring layer covers the first area of the battery module, and is provided with a first opening corresponding to the pressure release valve, so that the pressure release valve can exhaust gas through the first opening; the power supply control module is arranged in the second explosion-proof box body; and the gas treatment device is arranged in the first explosion-proof box body and is used for treating gas released in the thermal runaway process of the battery module.
The embodiment of the application provides an explosion-proof battery power, through configuring first explosion-proof box and the explosion-proof box of second to explosion-proof battery power, set up the battery module among first explosion-proof box, cover the first regional first sealing layer that waters of battery module, and set up the gas treatment device among first explosion-proof box, a gaseous for handling battery module thermal runaway in-process release, therefore, realize the explosion protection that sealing protection and explosion-proof protection combined together, and realize the isolation configuration of power control module and battery module, and realize the gas treatment mechanism to first explosion-proof box, effectively reduce the influence of battery thermal runaway release gas to box peripheral environment, promote the holistic application safety of explosion-proof battery power.
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 diagram of an explosion-proof battery power supply according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an explosion-proof battery power supply according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of a battery module according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a power control module according to another embodiment of the present application;
fig. 5 is a schematic structural diagram of a battery pack management and protection unit 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 power supply according to an embodiment of the present application.
Referring to fig. 1, the explosion-proof battery power supply 10 includes: a first explosion-proof case 11 and a second explosion-proof case 12; the battery module 13 is arranged in the first explosion-proof box body 11, wherein the battery module 13 comprises a first area and a second area, the first area comprises all the electrodes 131 in the battery module 13, and the second area comprises all the pressure relief valves 132 in the battery module 13; a first potting layer 133 covering a first area of the battery module 13, the first potting layer 133 having a first opening corresponding to the pressure release valve 132 so that the pressure release valve 132 can release air through the first opening; and a power control module 14 disposed in the second explosion-proof case 12; and a gas processing device 20 disposed in the first explosion-proof housing 11 for processing gas released during thermal runaway of the battery module 13.
In the gas treatment device 20 of the present embodiment, when the gas is released during the thermal runaway of the battery module, the gas treatment device can automatically treat all or a specific component in the released gas.
In the embodiment of the present application, the explosion-proof battery power supply 10 is exemplified by a lithium battery, or may be any other possible battery for coal mine underground operation, which is not limited to this.
It can be understood that if a battery module disposed in the first explosion-proof box 11 fails to cause a thermal runaway accident, a large amount of gas, such as hydrogen, methane, ethylene, carbon monoxide, carbon dioxide, etc., may be released, and therefore, in the embodiment of the present invention, the gas processing device 20 may be disposed in the first explosion-proof box 11 to process the above-mentioned gas, such as hydrogen, methane, ethylene, carbon monoxide, carbon dioxide, etc., in time.
The gas processing apparatus 20 can process gas by physical adsorption principle, or can process gas by chemical reaction, for example, a material having gas adsorption function can be built in to adsorb gas. The material having the gas adsorption function may be a single material or a combination of multiple materials, and is not limited thereto.
In the embodiment of the present application, it is through configuring gas processing apparatus 20 for first explosion-proof box 11 to can be in the thermal runaway in-process at the battery module, in time handle the gas that the battery module released, avoid the detonation risk that first explosion-proof box 11 internal pressure strengthens in the twinkling of an eye and leads to, thereby promote the security performance of explosion-proof battery power supply whole application.
Optionally, the gas processing device 20 is disposed on the explosion-proof cover 102 of the first explosion-proof box 11, or disposed in the free space inside the first explosion-proof box 11, or disposed on the wall of the free space part inside the first explosion-proof box, so that the installation manner is flexible and the practicability is better.
In some embodiments of the present application, referring to fig. 2, fig. 2 is a schematic structural diagram of an explosion-proof battery power supply according to another embodiment of the present application, further including: and a second potting layer 134 covering at least a second region of the battery module 13, wherein the impact strength of the second potting layer 134 is smaller than the impact strength when the pressure release valve 132 is opened, so that the second potting layer 134 is broken when the pressure release valve 132 releases the pressure.
In some embodiments of the present application, referring to fig. 2, in fig. 2, two mounting locations of the gas treatment device 20 are also shown, illustrated in phantom, including a first mounting location 210 and a second mounting location 220, the first mounting location 210 indicating: a gas processing device 20 provided on the explosion-proof cover 102 of the first explosion-proof case 11, and a second mounting position 220 indicates: the gas processing device 20 is disposed in a free space inside the first explosion-proof case 11.
In other embodiments, the gas processing device 20 can be disposed on the wall of the free space portion of the first explosion-proof box, which is not limited to this.
The battery module 13 may include a battery pack formed by connecting single lithium batteries in series or in parallel, and a battery pack management and protection unit configured to the battery pack, and the power control module 14 may include an electrical circuit switch unit and a communication circuit switch unit, for example, see fig. 3, where fig. 3 is a schematic structural diagram of a battery module according to another embodiment of the present disclosure, and the battery module includes: a battery pack 201 formed by connecting single lithium batteries in series or parallel, and a battery pack management and protection unit 202 matched with the battery pack, referring to fig. 4, fig. 4 is a schematic structural diagram of a power supply control module provided in another embodiment of the present application, and the power supply control module may include, for example, an electrical circuit switch unit 301 and a communication circuit switch unit 302.
The electric circuit switch unit 301 and the communication circuit switch unit 302 in the power supply control module 14 are each configured by a certain number of relays, a certain number of fuses, and a manual mechanical switch.
Referring to fig. 5, fig. 5 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 of voltage, current, temperature, deformation, and the like of the unit batteries 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. 2, further comprising: a first support member 40 disposed in the first explosion-proof case 11, the first support member 40 being for supporting and fixing the battery module 13; the second support 50 is disposed in the second explosion-proof case 12, and the second support 50 is used for supporting and fixing the power control module 14, that is, the battery module 13 can be fixedly installed in the first explosion-proof case 11 via the first support 40, and the power control module 14 can be fixedly installed in the second explosion-proof case 12 via the second support 50, so that the stability of the installation of the battery module 13 and the power control module 14 is effectively guaranteed.
Generally, the main potential ignition source of the lithium battery is an electrified component (for example, the electrode 131 of the battery module 13 in this application), that is, the positive and negative terminals of the single lithium battery in the battery module 13, and therefore, in this embodiment of this application, by covering and arranging the first potting layer 133 in the first area of the battery module 13, the first potting layer 133 realizes effective protection of the corresponding electrode 131 part of the single battery, and the second potting layer 134 at least covering the second area of the battery module 13 may also be arranged, and while the second potting layer 134 realizes protection of the first potting material, the pressure release valve 132 part is also protected, so that effective potting protection is realized.
For example, after the battery module 13 is mounted in the first explosion-proof case 11 in the explosion-proof housing, the battery module 13 and the first support member 40 are sealed with a sealing compound, the bottom and the side of the sealing compound are tightly bonded 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.
In the above-mentioned structural design of the anti-explosion battery power supply 10, the first encapsulation layer 133 disposed in the second region has a first opening corresponding to the pressure release valve 132, so that the pressure release valve 132 can release air through the first opening, and the explosive risk that the gas is sealed inside the encapsulation layer can be effectively avoided.
The above-mentioned impact strength who still disposes second seals 134 is less than the impact strength when the relief valve is opened, so that second seals 134 breaks when relief valve 132 releases the pressure, destroy second seals 134's condition after relief valve 132 opens, make the gas that produces can discharge behind the flame proof shell through the opening of first seals, the gas that is not handled completely by gas treatment device can be through the explosion-proof pressure relief device who sets up on the flame proof shell (in this application embodiment, can set up explosion-proof pressure relief device, or also can not set up explosion-proof pressure relief device, do not do the restriction to this) discharge in the external environment of first explosion-proof box 11, thereby avoided gas to accumulate in first explosion-proof box 11 inside and lead to producing too high pressure and then destroy first explosion-proof box 11, consequently, can not lead to the fact explosive extreme harm to the external environment.
The structural design mode of the explosion-proof battery power supply 10 in the embodiment of the application, when the pressure release valve 132 of the battery module 13 is opened, even if the second pouring layer 134 is damaged by the generated pressure, the positive and negative terminals of the single lithium battery can still be effectively protected by the first pouring layer 133, the effective isolation of a potential ignition source and explosive gas is realized, the occurrence probability of extreme accidents such as combustion and explosion is greatly reduced, and the safety protection performance of the explosion-proof battery power supply 10 is improved.
In one embodiment of the present application, referring to fig. 2, the first and second explosion- proof cases 11 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 a bolt 103, a free space is formed between the upper surface of a pouring layer covering the battery module 13 and the explosion-proof cover 102, and a sealing rubber strip is adopted between the explosion-proof cover 102 and the box body 101 for sealing treatment, so that the sealing performance of the whole explosion-proof battery power supply 10 is improved, and other parts (such as a pressure sensor) can be arranged in an auxiliary mode through the free space, so that the explosion-proof function of the explosion-proof battery power supply 10 is enriched in an auxiliary mode.
The first explosion-proof box body 11 can be regarded as a pouring chamber, and the second explosion-proof box body 12 can be regarded as a wiring chamber, referring to fig. 2, the battery module 13 and the power supply control module 14 are electrically connected through the glan head 15 between the first explosion-proof box body 11 and the second 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 supply control module 14 through the glan head 15.
In some embodiments, referring to fig. 2 and 3 together, the battery module 13 is electrically connected to the electric circuit switch unit 301 and the communication circuit switch unit 302 in the power control module 14 via the glan head 15; the electric circuit switch unit 301 and the communication circuit switch unit 302 in the power supply control module 14 are electrically connected to an electric circuit and a communication circuit outside the second explosion-proof case 12 via the glan head 15, respectively.
The gland head 15 is mainly used for fastening and sealing the cable, the fastening means that the cable is locked through the gland, the cable does not generate axial displacement and radial rotation, the normal connection of the cable is guaranteed, the sealing means IP protection which is often called, namely, dust prevention and water prevention, the gland head 15 can also be applied to a shielded cable waterproof connector and is suitable for the cable with a shielding layer, the armored cable waterproof connector suitable for the armored cable, the explosion-proof cable waterproof connector suitable for dangerous areas such as mines and the like.
In an embodiment of the present application, referring to fig. 2, further comprising: and a third pouring layer 135 covering the second pouring layer 134, wherein the third pouring layer 135 has a second opening at the position of the pressure release valve 132, the second opening corresponds to the pressure release valve 132, so that the pressure release valve 132 can exhaust gas through the second opening, and the impact strength of the third pouring layer 135 is greater than that of the first pouring layer 133.
In one embodiment of the present application, the first, second, and third potting layers 133, 134, and 135 fill the space between the battery module 13 and the side wall and the bottom of the first explosion-proof case 11, so that the battery module 13 is closely attached to the case body 101 of the first explosion-proof case 11 and the battery module 13 is fixed.
In one embodiment of the present application, the first, second, and third potting layers 133, 134, 135 are a silicon gel or an epoxy resin.
It should be noted that in this embodiment of the application, the first potting layer 133 may be used to implement potting protection, or the combination of the first potting layer 133 and the second potting layer 134 may also be used to implement potting protection, or the combination of the first potting layer 133, the second potting layer 134, and the third potting layer 135 may also be used to implement potting protection, which is not limited herein.
The impact strength of the third potting layer 135 is configured to be greater than that of the first potting layer 133, so that the third potting layer 135 can form an outermost protection, that is, the third layer of potting material can further enhance the protective function of the first layer of potting material. Due to the protection and reinforcement effects of the third layer of encapsulation material, the damage degree of the second layer of encapsulation material can be effectively limited, namely, the damage part can be limited at the pressure release valve 132 to the maximum extent, so that the destructive influence on the first layer of encapsulation material is reduced to a great extent, and the reliability of the encapsulation explosion-proof protection method is improved.
In an embodiment of the present application, referring to fig. 2, may further include: a first pressure sensor provided in the first explosion-proof case 11; a first pressure relief means 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 disposed in the second explosion-proof case 12; and a second pressure relief means provided in the second explosion-proof case 12 for relieving the pressure in the second explosion-proof case 12 to the outside when the pressure in the second explosion-proof case 12 increases.
The first pressure relief device may be, for example, a flame arrester, a check valve, or a combination of a flame arrester and a check valve, and the second pressure relief device may be, for example, a flame arrester, a check valve, or a combination of a flame arrester and a check valve.
The pressure sensor disposed in the first explosion-proof box 11 may be referred to as a first pressure sensor, and the pressure sensor disposed in the second explosion-proof box 12 may be referred to as a second pressure sensor, which is a device or apparatus capable of sensing a pressure signal and converting the pressure signal into a usable output electrical signal according to a certain rule.
That is to say, this application disposes first pressure sensor in first explosion-proof box 11 respectively to dispose second pressure sensor in second explosion-proof box 12, then, adopt first pressure sensor monitoring first explosion-proof box 11 in the pressure that gas produced, and adopt second pressure sensor monitoring second explosion-proof box 12 in the pressure that gas produced, thereby when monitoring first explosion-proof box 11 or second explosion-proof box 12 internal pressure too high, in time break explosion-proof battery power and outside electrical connection.
In this embodiment, through configuring first explosion-proof box and second explosion-proof box to explosion-proof battery power, set up the battery module among first explosion-proof box, cover the first encapsulation layer of the first region of battery module, and set up the gas processing apparatus among first explosion-proof box, a gaseous for handling battery module thermal runaway in-process release, therefore, realize the explosion-proof protection that encapsulation protection and explosion-proof protection combined together, and realize the isolation configuration of power control module and battery module, and realize the gas processing mechanism to first explosion-proof box, effectively reduce the gaseous influence to the box peripheral environment of battery thermal runaway release, promote the holistic application safety of explosion-proof battery power.
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 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 (9)
1. An explosion-proof battery power supply, comprising:
the first explosion-proof box body and the second explosion-proof box body;
the 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 battery module, and the second area comprises all pressure relief valves in the battery module;
the first pouring layer covers the first area of the battery module, and is provided with a first opening corresponding to the pressure release valve, so that the pressure release valve can exhaust gas through the first opening; and
the power supply control module is arranged in the second explosion-proof box body;
and the gas treatment device is arranged in the first explosion-proof box body and is used for treating gas released in the thermal runaway process of the battery module.
2. The explosion-proof battery power supply of claim 1, further comprising:
and a second pouring layer at least covering the second area of the battery module, wherein the impact strength of the second pouring layer is smaller than that of the pressure relief valve when the pressure relief valve is opened, so that the pressure relief valve breaks the second pouring layer when the pressure relief valve is relieved.
3. The explosion-proof battery power supply of claim 1, further comprising:
when the battery module releases gas in the thermal runaway process, the gas treatment device can automatically treat all components or specific components in the released gas.
4. The explosion-proof battery power supply of claim 2, further comprising:
and a third pouring layer covering the second pouring layer, wherein the third pouring layer is provided with a second opening at the position of the pressure release valve, the second opening corresponds to the pressure release valve so that the pressure release valve can exhaust gas through the second opening, and the impact strength of the third pouring layer is greater than that of the first pouring layer.
5. The explosion-proof battery power supply of claim 1, wherein the first and second explosion-proof cases comprise:
a box body;
the battery module comprises an explosion-proof cover arranged on the box body, wherein the explosion-proof cover is connected with the box body through a bolt and covers a free space between the upper surface of the pouring layer of the battery module and the explosion-proof cover.
6. The explosion-proof battery power supply of claim 5, wherein,
the gas processing device is arranged on an explosion-proof cover of the first explosion-proof box body, or is arranged in the free space inside the first explosion-proof box body, or is arranged on the wall of the free space part in the first explosion-proof box body.
7. The explosion-proof battery power supply of claim 1, further comprising:
and the battery module is electrically connected with the power supply control module through a Glan head between the first explosion-proof box body and the second explosion-proof box body.
8. The explosion-proof battery power supply of claim 1, further comprising:
the first supporting piece is arranged in the first explosion-proof box body and used for supporting and fixing the battery module;
and the second support piece is arranged in the second explosion-proof box body and is used for supporting and fixing the power supply control module.
9. The explosion-proof battery power supply of claim 4, wherein the first potting layer, the second potting layer and the third potting layer fill the space between the battery module and the side wall and the bottom of the first explosion-proof box body, so that the battery module is tightly attached to the box body of the first explosion-proof box body and the battery module is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192976.5A CN112563639A (en) | 2020-10-30 | 2020-10-30 | Explosion-proof battery power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192976.5A CN112563639A (en) | 2020-10-30 | 2020-10-30 | Explosion-proof battery power supply |
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| Publication Number | Publication Date |
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| CN112563639A true CN112563639A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011192976.5A Withdrawn CN112563639A (en) | 2020-10-30 | 2020-10-30 | Explosion-proof battery power supply |
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| CN (1) | CN112563639A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| WO2023020571A1 (en) * | 2021-08-20 | 2023-02-23 | 陕西奥林波斯电力能源有限责任公司 | Battery having explosion venting device, battery module, and battery box having explosion venting channel |
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