CN214099814U - Explosion-proof battery power supply - Google Patents
Explosion-proof battery power supply Download PDFInfo
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- CN214099814U CN214099814U CN202022480905.7U CN202022480905U CN214099814U CN 214099814 U CN214099814 U CN 214099814U CN 202022480905 U CN202022480905 U CN 202022480905U CN 214099814 U CN214099814 U CN 214099814U
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- power supply
- battery power
- battery module
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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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses an explosion-proof battery power, include: a box body; the battery module is arranged in the 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; and the gas treatment device is used for treating gas released in the thermal runaway process of the battery module. According to the utility model discloses explosion-proof battery power through setting up gaseous processing apparatus, can handle the gas of battery module thermal runaway in-process release, effectively reduces the influence of battery thermal runaway release gas to box peripheral environment, has reduced the probability of taking place terminal accidents such as burning and explosion by a wide margin.
Description
Technical Field
The utility model relates to a battery safety technical field, in particular to explosion-proof battery power.
Background
At present, the explosion-proof battery power of large capacity that uses in the pit in colliery comprises a large amount of battery cells usually, when battery cell takes place extreme trouble if thermal runaway, can produce and release a large amount of gas, the gas that exists the release is gathered in the power supply box and is caused the box because of the too big risk that takes place the explosive accident of pressure, has brought very big potential safety hazard for the safe operation of battery power, nevertheless does not have good solution in the industry of moving ahead now, awaits the solution urgently.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem in the relevant field to a certain extent at least.
For this reason, the utility model aims to provide an explosion-proof battery power through the sealing of watering that sets up the cover battery module to and gas processing apparatus, not only realized the effective isolation of potential ignition source and explosive gas, can absorb the gas of battery module thermal runaway in-process release moreover, effectively reduce the influence of battery thermal runaway release gas to box peripheral environment, reduced the probability of taking place extreme accidents such as burning and explosion by a wide margin.
In order to achieve the above object, an embodiment of the present invention provides an explosion-proof battery power supply, including: a box body; the battery module is arranged in the 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; and the gas treatment device is used for treating gas released in the thermal runaway process of the battery module.
In addition, the explosion-proof battery power supply according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the gas treatment device is disposed in the tank.
According to the utility model discloses an embodiment, when battery module thermal runaway in-process release gas, but gas treatment device automatic processing release in the gas all composition or specific composition.
According to the utility model discloses an embodiment, foretell explosion-proof battery power still includes:
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 exhausts air through the first opening
According to an embodiment of the present invention, the explosion-proof battery power supply at least covers the second pouring layer of the second area of the battery module, wherein the impact strength of the second pouring layer is smaller than the impact strength of the relief valve when the relief valve is opened, so as to ensure that the relief valve breaks the second pouring layer when the relief valve is opened;
according to the utility model discloses an embodiment, foretell explosion-proof battery power still includes: 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 exhausts air through the second opening, and the impact strength of the third pouring layer is greater than that of the first pouring layer.
According to the utility model discloses an embodiment, foretell explosion-proof battery power still includes: the box is explosion-proof box or non-explosion-proof metal box, wherein, the box includes: a box body; the box cover is arranged on the box body, connected with the box body through bolts and covered with a free space between a pouring layer of the battery module and the box cover.
According to an embodiment of the invention, the gas treatment device is arranged on the cover.
According to the utility model discloses an embodiment, foretell explosion-proof battery power still includes: the pressure detector is arranged in the box body, and controls to cut off the electrical connection between the explosion-proof battery power supply and an external circuit when the pressure detector detects that the pressure in the box body is greater than a preset threshold value; the pressure relief device is arranged on the box cover or the box body to ensure that the pressure is timely relieved when the pressure in the box body rises, so that the influence on the battery module is reduced.
According to the utility model discloses an embodiment, foretell explosion-proof battery power still includes: and the sealing strip is arranged between the box cover and the box body.
The utility model discloses explosion-proof battery power, first seal of watering through setting up the first region that covers the battery module, realize the encapsulation protection with the first seal of watering of the first region that adopts to cover the battery module, first seal of watering can effectively protect the electrode of monomer lithium cell, realize the effective isolation of potential ignition source and explosive gas, the probability of extreme accidents such as burning and explosion has been reduced by a wide margin, simultaneously can be when battery module thermal runaway in-process release gas, handle the gas of battery module thermal runaway in-process release through gas treatment device, effectively reduce the influence of battery thermal runaway release gas to box peripheral environment, not only reduced the probability of extreme accidents such as burning and explosion by a wide margin, and can also play good guard action to the box.
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 view of an explosion-proof battery power supply according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an explosion-proof battery power supply according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of an explosion-proof battery power supply according to an 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 and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
An explosion-proof battery power supply according to an embodiment of the present invention is described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an explosion-proof battery power supply according to an embodiment of the present invention.
As shown in fig. 1, the explosion-proof battery power supply 1000 includes: a case 10, a battery module 20, and a gas treatment device 50.
The battery module 20 is arranged in the box 10, wherein the battery module 20 includes a first area and a second area, the first area includes all the electrodes 21 in the battery module 20, and the second area includes all the pressure relief valves 22 in the battery module 20; the gas treatment device 50 is used to treat gas released during thermal runaway of the battery module 20.
Alternatively, according to an embodiment of the present invention, as shown in fig. 1, the gas processing device 50 may be provided inside the case 10.
The embodiment of the utility model provides an in, explosion-proof battery power supply 1000 can be lithium battery power supply, also can be other arbitrary possible colliery battery power supply for borehole operation, does not do specific limitation here, uses explosion-proof battery power supply 1000 to explain in detail for lithium battery power supply below.
The aforesaid is in explosion-proof battery power 1000's architectural design, as shown in fig. 1, for further guarantee box 10 and battery module 20's security, the embodiment of the utility model provides a still be provided with gas treatment device 50, wherein, gas treatment device 50 can set up in box 10, also can install on the tank wall of the free space part in box 10, when battery module 20 is at thermal runaway in-process release gas in box 10, like hydrogen, methane, ethylene, carbon monoxide, carbon dioxide etc., gas treatment device 50 can handle gas through physisorption's principle, also can handle gas through chemical reaction's mode, thereby effectively reduce the influence of battery thermal runaway release gas to box peripheral environment, the probability of taking place the extreme accident such as burning and explosion has been reduced by a wide margin.
Therefore, when the battery module 20 releases gas in the thermal runaway process, the gas released in the thermal runaway process of the battery module 20 is treated by the gas treatment device 50, the influence of the battery thermal runaway released gas on the peripheral environment of the box body is effectively reduced, the probability of extreme accidents such as burning and explosion is greatly reduced, and the box body 10 can be well protected.
Further, according to an embodiment of the present invention, as shown in fig. 2, the explosion-proof battery power supply 1000 further includes: a first potting layer 30. The first potting layer 30 covers a first area of the battery module 20, the first potting layer 30 has a first opening 31, and the first opening 31 corresponds to the pressure release valve 22, so that the pressure release valve 22 exhausts air through the first opening 31.
It can be understood that the battery module 20 may include a plurality of single lithium batteries arranged at intervals in sequence, the single lithium batteries may be connected to each other through an electrical connector, and generally, the main potential ignition source of the lithium batteries is a charged component, as shown in fig. 2, all the electrodes 21 in the battery module 20 of the present invention, that is, the positive and negative terminals of the single lithium batteries in the battery module 20. Therefore, in the embodiment of the present invention, the first pouring sealing layer 30 is set by covering the first region of the battery module 20, and the pressure relief valve 22 of the single battery is effectively protected by the first pouring sealing layer 30.
In the above structural design of the explosion-proof battery power supply 1000, as shown in fig. 3, in the second area, that is, at all the pressure release valves 22 in the battery module 20, the first potting layer 30 is configured to have the first opening 31, and the first opening 31 corresponds to the pressure release valve 22, so that the pressure release valve 22 can exhaust gas through the first opening 31, and the risk of explosion caused by the thermal runaway and other faults of the battery can be effectively avoided.
Further, according to an embodiment of the present invention, as shown in fig. 3, the explosion-proof battery power supply 1000 further includes: a second potting layer 40. The second potting layer 40 covers at least a second area of the battery module 20, wherein the impact strength of the second potting layer 40 is smaller than the impact strength of the pressure release valve 22 when opened, so as to ensure that the pressure release valve 22 breaks the second potting layer 40 when opened.
The impact strength of the second pouring layer 40 is smaller than that of the pressure release valve 22 when the pressure release valve 22 is opened, so that the pressure release valve 22 breaks through the second pouring layer 40 when opened, and under the condition that the second pouring layer 40 is damaged after the pressure release valve 22 is opened, the first pouring layer 30 can still effectively protect the electrode 21 of the single lithium battery, effective isolation of a potential ignition source and explosive gas is achieved, and the probability of extreme accidents such as combustion and explosion is greatly reduced.
Further, according to an embodiment of the present invention, as shown in fig. 4, the explosion-proof battery power supply 1000 further includes: a third potting layer 120. The third sealing layer 120 covers the second sealing layer 40, wherein the third sealing layer 120 has a second opening 121 at the position of the pressure release valve 22, the second opening 121 corresponds to the pressure release valve 22, so that the pressure release valve 22 can exhaust gas through the second opening 121, and the impact strength of the third sealing layer 120 is greater than that of the first sealing layer 30.
The impact strength of the third sealing layer 120 is configured to be greater than that of the first sealing layer 30, so that the third sealing layer 120 may form an outermost protection, that is, the third sealing layer 120 may further enhance the protection function of the first sealing layer 30. Due to the protection and reinforcement effects of the third pouring layer 120, the damage degree of the second pouring layer 40 can be effectively limited, namely, the damage part can be limited at the pressure release valve 22 to the maximum degree, so that the destructive influence on the first pouring layer 30 is reduced to a great extent, and the reliability of the pouring explosion-proof protection method is improved.
Note that the encapsulation of the explosion-proof battery power supply 1000 according to the embodiment of the present invention is not limited to three-layer encapsulation, and for example, only one-layer encapsulation may be provided, two-layer encapsulation may be provided, or three-layer encapsulation may be provided.
Alternatively, according to an embodiment of the present invention, the first, second and third potting layers 30, 40 and 120 may be silicone or epoxy. That is, one skilled in the art can arrange the first sealing layer 30, the second sealing layer 40, and the third sealing layer 120 according to actual situations, for example, the first sealing layer 30 is a silicone rubber, the second sealing layer 40 is a silicone rubber, and the third sealing layer 120 is an epoxy resin.
It can be understood that silica gel is called silicic acid gel, is a high-activity adsorption material, belongs to an amorphous substance, and has stable chemical property and no combustion because the main component of the silica gel is silicon dioxide; epoxy resin is a general name of a polymer containing more than two epoxy groups in a molecule, is a polycondensation product of epoxy chloropropane and bisphenol A or polyol, and can be subjected to ring opening by using various compounds containing active hydrogen due to the chemical activity of the epoxy groups, and a network structure is formed by curing and crosslinking, so that the epoxy resin is a thermosetting resin. Therefore, the silica gel or the epoxy resin has the characteristics of high temperature resistance, good flame retardant property, explosion resistance and the like.
Further, according to an embodiment of the present invention, as shown in fig. 4, the explosion-proof battery power supply 1000 further includes: the box 10 is an explosion-proof box or a non-explosion-proof metal box, wherein the box includes: a case body 101 and a case cover 102. The material of the box body 101 and the box cover 102 may include profile steel, stainless steel, ceramic or engineering plastic; the cover 102 is provided on the case body 101, wherein the cover 102 is connected to the case body 101 by bolts 1021, and a free space exists between the potting layer covering the battery module 20 and the cover 102, so that a certain buffer space can be given to the accumulation of the pressure gas, and by providing the free space, it is also possible to assist in disposing some other components (e.g., a pressure detector) to assist in enriching the explosion-proof function of the explosion-proof battery power supply 1000.
Further, according to an embodiment of the present invention, as shown in fig. 4, the gas processing device 50 may be further disposed on the box cover 102.
Further, according to an embodiment of the present invention, as shown in fig. 4, the explosion-proof battery power supply 1000 further includes: a pressure detector 130 and at least one pressure relief device (e.g., pressure relief device 140). Preferably, the pressure detector 130 is provided in the case body 101; at least one pressure relief device is arranged on the box cover 102 or the box body 101, wherein when the pressure detector 130 detects that the internal pressure of the box body is greater than a preset threshold value, the electrical connection between the explosion-proof battery power supply 1000 and an external circuit is controlled to be cut off, and meanwhile, the pressure relief device relieves pressure in time, so that the influence on the battery module 20 is reduced.
The pressure relief device may be, for example, a flame arrester, a check valve, or a combination of a flame arrester and a check valve, without limitation.
It can be understood that, as shown in fig. 4, when the battery relief valve 22 opens the exhaust, the pressure in the box body 101 can be greatly increased, if the pressure in the box body 101 reaches a certain pressure value, an explosion may occur, and therefore, to ensure safety, the embodiment of the present invention may be provided with the pressure detector 130 in the box body 101, and the pressure relief device 140 on the box cover 102, so as to detect the pressure in the box body 101 through the pressure detector 130.
Wherein, because the gas of the in-process release of battery module 20 thermal runaway has been handled by gas processing apparatus 50, therefore, the embodiment of the utility model provides a can not carry out the pressure release, when the pressure that detects is greater than predetermineeing the threshold value, only when can't guaranteeing safety through gas processing apparatus 50 promptly, the utility model discloses a can control the electrical connection who cuts off explosion-proof battery power 1000 and external circuit, pressure relief device in time carries out the pressure release simultaneously to discharge the gas in box body 101, thereby avoided gas to gather in box body 101 inside and lead to producing too high pressure and then destroy box body 101 and battery module 20, and can not lead to the fact explosive extreme harm to external environment, realized explosion-proof function, reduced the explosion risk of battery, improved the security of box and battery power.
It should be noted that, in order to exhaust the gas in the box body 101 as soon as possible, the embodiment of the present invention may be provided with a plurality of pressure relief devices on the box cover 102, wherein the above-mentioned manner of providing the pressure relief devices is only exemplary, and those skilled in the art may also provide the pressure relief devices at other positions, for example, on the box body 101. In addition, the preset threshold may be a threshold preset by a user, may be a threshold obtained through a limited number of experiments, or may be a threshold obtained through a limited number of computer simulations, which is not specifically limited herein.
Further, according to an embodiment of the present invention, as shown in fig. 4, the explosion-proof battery power supply 1000 further includes: a sealing strip 150. Wherein, the sealing strip 150 is arranged between the box cover 102 and the box body 101.
It is understood that the sealing tape 150 may be provided between the cover 102 and the case body 101 to close a gap between the cover 102 and the case body 101. Wherein the sealing strip 150 may include a body, at least two upper legs and at least two lower legs. Wherein, at least two last stabilizer blades are seted up respectively at the upper end of body at the interval, and at least two last stabilizer blades stop respectively to case lid 102, and at least two lower stabilizer blades are seted up respectively at the lower extreme of body at the interval, and at least two lower stabilizer blades stop respectively to box body 101.
Therefore, by providing the weather strip 150 having a plurality of upper and lower legs between the cover 102 and the case body 101, not only can multiple sealing between the cover 102 and the case body 101 be achieved, but also the sealing between the cover 102 and the case body 101 can be effectively improved, thereby improving the reliability of the use of the case.
According to the anti-explosion battery power supply provided by the embodiment of the utility model, the first pouring layer covering the first area of the battery module and the second pouring layer at least covering the second area of the battery module are arranged, so that the first pouring layer covering the first area of the battery module and the second pouring layer at least covering the second area of the battery module are adopted to realize pouring protection, even if the second pouring layer is damaged when the pressure release valve is opened, the first pouring layer can still effectively protect the electrode of the single lithium battery, the effective isolation of a potential ignition source and explosive gas is realized, the probability of extreme accidents such as combustion and explosion is greatly reduced, meanwhile, when the battery module is ignited, the gas released in the thermal runaway process of the battery module is processed by the gas processing device, the influence of the thermal runaway released gas on the peripheral environment of the box body is effectively reduced, the probability of the occurrence of the extreme accidents such as combustion and explosion is greatly reduced, but also can play a good role in protecting the box body.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
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:
a box body;
the battery module is arranged in the 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; and
and the gas treatment device is used for treating gas released in the thermal runaway process of the battery module.
2. An explosion-proof battery power supply as set forth in claim 1, wherein said gas treatment device is disposed within said case.
3. The explosion-proof battery power supply of claim 1,
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 1, 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.
5. The explosion-proof battery power supply of claim 4, further comprising:
and covering at least the second pouring layer of the second area of the battery module, wherein the impact strength of the second pouring layer is smaller than that of the pressure release valve when the pressure release valve is opened so as to ensure that the pressure release valve breaks the second pouring layer when opened.
6. The explosion-proof battery power supply of claim 5, 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 exhausts air through the second opening, and the impact strength of the third pouring layer is greater than that of the first pouring layer.
7. The explosion-proof battery power supply of claim 1, further comprising:
the box is explosion-proof box or non-explosion-proof metal box, wherein, the box includes:
a box body;
the box cover is arranged on the box body, connected with the box body through bolts and covered with a free space between a pouring layer of the battery module and the box cover.
8. The explosion-proof battery power supply of claim 7 wherein said gas treatment device is disposed on said cover.
9. The explosion-proof battery power supply of claim 8, further comprising:
the pressure detector is arranged in the box body, and controls to cut off the electrical connection between the explosion-proof battery power supply and an external circuit when the pressure detector detects that the pressure in the box body is greater than a preset threshold value;
the pressure relief device is arranged on the box cover or the box body to ensure that the pressure is timely relieved when the pressure in the box body rises, so that the influence on the battery module is reduced.
10. The explosion-proof battery power supply of claim 9, further comprising:
and the sealing strip is arranged between the box cover and the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022480905.7U CN214099814U (en) | 2020-10-30 | 2020-10-30 | Explosion-proof battery power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022480905.7U CN214099814U (en) | 2020-10-30 | 2020-10-30 | Explosion-proof battery power supply |
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| Publication Number | Publication Date |
|---|---|
| CN214099814U true CN214099814U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022480905.7U Active CN214099814U (en) | 2020-10-30 | 2020-10-30 | Explosion-proof battery power supply |
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|---|---|
| CN (1) | CN214099814U (en) |
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- 2020-10-30 CN CN202022480905.7U patent/CN214099814U/en active Active
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