CN214428736U - Explosion-proof battery power supply - Google Patents
Explosion-proof battery power supply Download PDFInfo
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- CN214428736U CN214428736U CN202022480658.0U CN202022480658U CN214428736U CN 214428736 U CN214428736 U CN 214428736U CN 202022480658 U CN202022480658 U CN 202022480658U CN 214428736 U CN214428736 U CN 214428736U
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- explosion
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- box body
- 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 utility model 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 relief valves in the battery module; 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 isolation configuration of the power supply control module and the battery module is realized, a gas treatment mechanism aiming at the first explosion-proof box body is realized, the influence of battery thermal runaway release 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.
Description
Technical Field
The utility model relates to a battery safety application technical field especially relates to an explosion-proof battery power.
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 utility model discloses aim at solving one of the technical problem among the relevant technical field to a certain extent at least.
Therefore, the utility model aims to provide an explosion-proof battery power realizes the isolation configuration of power control module group and battery module to and realize effectively reducing the influence of battery thermal runaway release gas to box peripheral environment to the gas treatment mechanism of first explosion-proof box, promote the holistic safety in application of explosion-proof battery power.
In order to achieve the above object, an embodiment of the present invention provides an explosion-proof battery power supply, including: 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 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 utility model provides an explosion-proof battery power, through to the first explosion-proof box of explosion-proof battery power configuration and the explosion-proof box of second, set up the battery module among the first explosion-proof box, and set up the gas processing apparatus among the first explosion-proof box, a gaseous for handling battery module thermal runaway in-process release, therefore, 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 gaseous influence to the box peripheral environment of battery thermal runaway release, promote the holistic safety in application of explosion-proof battery power.
Additional aspects and advantages of the invention 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 invention.
Drawings
The above and/or additional aspects and advantages of the present invention 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 invention;
fig. 2 is a schematic structural diagram of an explosion-proof battery power supply according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a battery module according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a power control module according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a battery pack management and protection unit according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, 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 function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention 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 invention.
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; 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 invention, the explosion-proof battery power source 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 the battery module of configuration breaks down among the first explosion-proof box body 11, leads to the thermal runaway accident, then may release a large amount of gas, for example hydrogen, methane, ethylene, carbon monoxide, carbon dioxide etc. from this, the embodiment of the utility model provides an embodiment can set up gaseous processing apparatus 20 among first explosion-proof box body 11 to timely processing above-mentioned gas such as hydrogen, methane, ethylene, carbon monoxide, carbon dioxide.
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.
The embodiment of the utility model provides an in, it is through configuring gaseous processing apparatus 20 to 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 first explosion-proof box 11 internal pressure to strengthen in the twinkling of an eye and the detonation risk that leads to, thereby promote the security performance of explosion-proof battery power 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 invention, referring to fig. 2, fig. 2 is a schematic structural diagram of an explosion-proof battery power supply provided by another embodiment of the present invention, further including: a first potting layer 133 covering the first area of the battery module 13, the first potting layer 133 having a first opening corresponding to the pressure relief valve 132 so that the pressure relief valve 132 can exhaust gas through the first opening.
In some embodiments of the present invention, referring to fig. 2, further comprising: 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 invention, referring to fig. 2, in fig. 2, two mounting positions of the gas treatment device 20 are also shown, illustrated in phantom, including a first mounting position 210 and a second mounting position 220, the first mounting position 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 be composed of a battery pack formed by connecting single lithium batteries in series or in parallel and a battery pack management and protection unit matched with the battery pack, and the power control module 14 may include, for example, an electrical circuit switch unit and a communication circuit switch unit, see fig. 3, where fig. 3 is a schematic structural diagram of a battery module provided by another embodiment of the present invention, and the battery module includes: the battery pack 201 formed by connecting single lithium batteries in series or in parallel and the battery pack management and protection unit 202 matched with the battery pack are shown in fig. 4, fig. 4 is a schematic structural diagram of a power supply control module provided by another embodiment of the present invention, and the power supply control module may include an electrical circuit switch unit 301 and a communication circuit switch unit 302, for example.
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 invention, 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 cell in the battery pack 201 in real time, and controls an operating state of the protection unit 20202.
In some embodiments of the present invention, 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.
Usually the main potential ignition source of lithium cell is electrified part (for example, the utility model discloses well battery module 13's electrode 131), also the positive negative terminal that the cell lithium cell in battery module 13, consequently, the embodiment of the utility model provides an, set up first encapsulation layer 133 through the first regional cover at battery module 13, realize effectively protecting the cell corresponding electrode 131 part by this first encapsulation layer 133, can also set up the second encapsulation layer 134 that covers battery module 13 at least in the second region, when pouring encapsulation layer 134 by this second and realizing the protection to first layer encapsulation material, also carried out the guard action to relief valve 132 part, realized effectual encapsulation protection.
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.
Above-mentioned impact strength who still disposes second pouring seal 134 is less than the impact strength when the relief valve is opened, so that second pouring seal 134 breaks during the relief valve 132 pressure release, destroy the second after the relief valve 132 is opened under the condition of pouring seal 134, make the gas that produces can discharge behind the flame proof shell through the opening of first pouring seal, 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 the embodiment of the utility model discloses in, can set up explosion-proof pressure relief device, perhaps can not set up explosion-proof pressure relief device yet, 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 embodiment of the utility model provides an in explosion-proof battery power 10 architectural design mode, when the relief valve 132 of battery module 13 is opened, the pressure of production is even pouring sealing layer 134 with the second and is destroyed, and first pouring sealing layer 133 still can effectively protect the positive negative pole terminal of monomer lithium cell, realizes potential ignition source and explosive gas's effective isolation, has reduced the emergence probability of extreme accidents such as burning and explosion by a wide margin, has promoted explosion-proof battery power 10's safety protection performance.
In an embodiment of the present invention, referring to fig. 2, the first explosion-proof case 11 and the second explosion-proof case 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 invention, referring to fig. 2, further includes: 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 an embodiment of the present invention, 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 box 11, so that the battery module 13 is tightly attached to the box body 101 of the first explosion-proof box 11 and the battery module 13 is fixed.
In one embodiment of the present invention, the first, second and third potting layers 133, 134 and 135 are silicone or epoxy.
It should be noted that, in the embodiment of the present invention, the first potting layer 133 may be adopted to realize the potting protection, or the combination of the first potting layer 133 and the second potting layer 134 may also be adopted to realize the 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 adopted to realize the 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 invention, referring to fig. 2, it 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, the utility model discloses dispose first pressure sensor in first explosion-proof box 11 respectively to dispose second pressure sensor in the explosion-proof box 12 of second, then, adopt the pressure of the gaseous production in the first explosion-proof box 11 of first pressure sensor monitoring, and adopt the pressure of the gaseous production in the explosion-proof box 12 of second pressure sensor monitoring, thereby when monitoring first explosion-proof box 11 or the explosion-proof box 12 internal pressure of second too high, in time break off 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, and set up the gaseous processing apparatus among first explosion-proof box, be used for handling the gaseous of battery module thermal runaway in-process release, therefore, realize the isolation configuration of power control module and battery module, and realize the gas handling mechanism to first explosion-proof box, effectively reduce the gaseous influence to the box peripheral environment of release of battery thermal runaway, promote the holistic safety in application of explosion-proof battery power.
It should be noted that, in the description of the present invention, 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 invention, "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 invention 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 embodiments of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. 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 invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
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 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:
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.
3. The explosion-proof battery power supply of claim 2, further comprising:
the first pouring layer covers the first area of the battery module, the first pouring layer is provided with a first opening, and the first opening corresponds to the pressure release valve so that the pressure release valve can exhaust gas through the first opening.
4. The explosion-proof battery power supply of claim 3, 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.
5. The explosion-proof battery power supply of claim 4, 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.
6. The explosion-proof battery power supply of claim 3, 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.
7. The explosion-proof battery power supply of claim 6, 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.
8. 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.
9. 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.
10. The explosion-proof battery power supply of claim 5, 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022480658.0U CN214428736U (en) | 2020-10-30 | 2020-10-30 | Explosion-proof battery power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022480658.0U CN214428736U (en) | 2020-10-30 | 2020-10-30 | Explosion-proof battery power supply |
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| CN214428736U true CN214428736U (en) | 2021-10-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115172954A (en) * | 2022-07-21 | 2022-10-11 | 成都盒电物联网科技有限公司 | Composite layer, unit and battery explosion-proof assembly for releasing gas |
| WO2024016212A1 (en) * | 2022-07-20 | 2024-01-25 | 宁德时代新能源科技股份有限公司 | Battery and electric device |
-
2020
- 2020-10-30 CN CN202022480658.0U patent/CN214428736U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024016212A1 (en) * | 2022-07-20 | 2024-01-25 | 宁德时代新能源科技股份有限公司 | Battery and electric device |
| CN115172954A (en) * | 2022-07-21 | 2022-10-11 | 成都盒电物联网科技有限公司 | Composite layer, unit and battery explosion-proof assembly for releasing gas |
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