CN110620203A - Battery pack ventilation drying and filtering system - Google Patents
Battery pack ventilation drying and filtering system Download PDFInfo
- Publication number
- CN110620203A CN110620203A CN201910946538.4A CN201910946538A CN110620203A CN 110620203 A CN110620203 A CN 110620203A CN 201910946538 A CN201910946538 A CN 201910946538A CN 110620203 A CN110620203 A CN 110620203A
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- CN
- China
- Prior art keywords
- battery pack
- filter
- air inlet
- air
- valve
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Electrochemistry (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
A battery pack ventilation drying and filtering system belongs to the technical field of drying and filtering and comprises a battery pack, a pressure relief safety valve, an air inlet and outlet pipeline, a drying filter, a one-way air outlet valve, an air outlet pipeline, an air inlet pipeline, a one-way air inlet valve and an air filter, wherein one port of the air inlet and outlet pipeline, one port of the air outlet pipeline and one port of the air inlet pipeline are communicated with the drying filter, the other port of the air inlet and outlet pipeline is communicated with the pressure relief safety valve, the one-way air outlet valve is arranged on the air outlet pipeline, the one-way air inlet valve is arranged on the air inlet pipeline, and the air filter is communicated with the other port. The invention has reasonable design and simple structure, the drying filter ensures that the gas is discharged after being dried and filtered by placing the drying agent or other modes, and the discharged gas can be purified to a certain degree; meanwhile, the gas entering the battery pack is dry and clean, and the battery pack pressure relief safety valve and the battery pack are prevented from being polluted.
Description
Technical Field
The invention relates to a filtering system in the technical field of drying and filtering, in particular to a battery pack ventilating, drying and filtering system controlled by a one-way valve for a vehicle.
Background
The battery pack is a core component of electric automobiles, motorcycles and electric bicycles. But in current technique, the battery package is through pressure release relief valve and atmospheric environment directly exchange gas, other in the battery package can directly arrange to atmospheric environment through the relief valve, and gas is not crossing dry filtration, the disposable discharge of gas that probably is poisonous in the package can bring unhealthy influence and influence the pollution of environment to the human body, package outer gas gets into the battery package when inside through the pressure release relief valve, unclean air in the environment and humid air can directly get into inside the battery package, cause each part function decline of battery package or function loss even.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a battery pack ventilation drying and filtering system which can effectively reduce pollutant discharge and improve the safety of the battery pack.
The invention is realized by the following technical scheme that the invention comprises a battery pack, a pressure relief safety valve, an air inlet and outlet pipeline, a drying filter, a one-way air outlet valve, an air outlet pipeline, an air inlet pipeline, a one-way air inlet valve and an air filter, wherein the pressure relief safety valve is arranged on the battery pack; one port of the air inlet pipeline, one port of the air outlet pipeline and one port of the air inlet pipeline are communicated with the dry filter; the other port of the air inlet and outlet pipeline is communicated with a pressure relief safety valve; the one-way air outlet valve is arranged on the air outlet pipeline, and the one-way air inlet valve is arranged on the air inlet pipeline; the air filter is communicated with the other port of the air inlet pipeline.
Further, in the present invention, the port of the air outlet line communicating with the filter-drier is moved to communicate with the air inlet and outlet lines.
Further, in the present invention, the battery pack is a power battery pack used in an electric vehicle, or a battery pack used in an electric motorcycle or an electric bicycle.
Further, in the present invention, the pressure relief safety valve is a valve through which air or water vapor freely passes under a certain pressure.
Further, in the present invention, the filter-drier is made of plastic or metal, and a drying agent is placed inside.
Further, in the present invention, the air filter is made of plastic or metal, and a filter sponge is placed inside.
The invention relates to the technical field of a battery pack ventilation drying and filtering system, and in certain conditions, when the internal pressure of a battery pack is greater than the ambient pressure, a pressure relief safety valve can timely discharge gas in the battery pack to the ambient atmosphere outside the battery pack, so that the risk of battery pack bulging, damage and even explosion caused by too fast increase of the internal pressure of the battery pack is reduced or avoided. According to the functional requirements of the system, the drying filter can filter the gas exhausted from the battery pack, and the gas exhausted from the battery pack has acidic gas or other toxic substances, so that the surrounding environment can be polluted and the influence on the health of a human body can be caused.
Under certain conditions, the internal pressure of battery package can be less than atmospheric environment pressure, inside air in the environment can enter into battery package through the pressure release relief valve, avoid the battery package when pressure drop, pressure drop is too fast, lead to battery package casing sunken, trouble such as sealed leakage takes place, function and the drying function of drying filter through air cleaner, the gas of guaranteeing to get into the battery package is dry and clean, avoid polluting battery package pressure release relief valve and battery package, thereby do not reduce the function of pressure release relief valve and battery package.
In the present invention, the battery pack refers to a power battery pack used in an electric vehicle (including a pure electric vehicle EV, a hybrid electric vehicle HEV, a plug-in hybrid electric vehicle PHEV, an extended range electric vehicle EV, and the like), and may be a battery pack used in an electric motorcycle, an electric bicycle, and the like.
The pressure relief safety valve is also called as an explosion-proof valve or a safety breather valve, and is a valve through which air, water vapor and other gases can freely pass under certain pressure.
The drying filter is a shell with a certain volume, is made of plastic or metal, can be internally provided with some drying agents or not provided with the drying agents, and can have a certain self-drying or passive drying function.
The air filter is a shell with a certain volume, is made of plastic or metal, can be internally provided with a plurality of filter sponges or other filter materials, and can be replaced periodically under necessary conditions.
The one-way air inlet valve and the one-way air outlet valve can be opened for a long time in one way or closed for a long time under the condition of no external force, according to the functional requirements of the system, the one-way valve can open the air under the condition of certain one-way opening pressure, and the air volume can have certain change, otherwise, the one-way valve is closed under the condition of reverse pressure, and the air volume can be very small or has no air volume.
The air inlet and outlet pipeline can be used for exhausting air from the battery pack and also can be used for entering the air inlet and outlet pipeline of the battery pack from the environment.
And the air outlet pipeline is a pipeline which ensures that air is only transmitted to the outside of the battery pack from the inside of the battery pack in a one-way mode through the function of the one-way valve, and the ventilation quantity in the opposite direction is extremely low or none.
And the air inlet pipeline is a pipeline which ensures that air is transmitted into the battery pack from the outside of the battery pack only in a one-way mode through the function of the one-way valve, and the ventilation quantity in the opposite direction is extremely low or none.
Compared with the prior art, the invention has the following beneficial effects: the battery pack has the advantages of reasonable design and simple structure, and can effectively reduce pollutant emission and improve the safety of the battery pack.
Drawings
Fig. 1 is a schematic structural view of a prior art battery pack according to the present invention;
FIG. 2 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 3 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 4 is a schematic structural diagram of embodiment 3 of the present invention;
FIG. 5 is a schematic structural diagram of embodiment 4 of the present invention;
wherein: 00. the air filter comprises a battery pack, 10 a pressure relief safety valve, 20 an air inlet and outlet pipeline, 30 a drying filter, 40 a one-way air outlet valve, 50 an air outlet pipeline, 60 an air inlet pipeline, 70 a one-way air inlet valve, 80 and an air filter.
Detailed Description
The following embodiments of the present invention are described in detail with reference to the accompanying drawings, and the embodiments and specific operations of the embodiments are provided on the premise of the technical solution of the present invention, but the scope of the present invention is not limited to the following embodiments.
Example 1
Embodiment 1 as shown in fig. 2, the present invention includes a battery pack 00, pressure relief safety valves 10, an air inlet and outlet pipeline 20, a dry filter 30, a one-way air outlet valve 40, an air outlet pipeline 50, an air inlet pipeline 60, a one-way air inlet valve 70, and an air filter 80, wherein the two pressure relief safety valves 10 are respectively installed at the upper and lower ends of the battery pack; one port of each of the two air inlet and outlet pipes 20, one port of the air outlet pipe 50, and one port of the air inlet pipe 60 are both communicated with the dry filter 30; the other ports of the two air inlet and outlet pipelines 20 are respectively communicated with the pressure relief safety valve 10; the one-way air outlet valve 40 is arranged on the air outlet pipeline 50, and the one-way air inlet valve 70 is arranged on the air inlet pipeline 60; an air filter 80 communicates with the other port of the intake conduit 60.
In the implementation process of the invention, under a certain possible condition, the electric core inside the battery pack 00 can generate harmful acid gas or other gases in the charging and discharging process or under other conditions, and generate a certain amount of heat, the heat causes the temperature of the gas inside the battery pack 00 to rise, and causes the pressure inside the battery pack 00 to increase, the internal pressure is larger than the ambient atmospheric pressure outside the battery pack 00, when the pressure is unbalanced to a certain degree, the acid gas and other gases inside the battery pack 00 can sequentially pass through the pressure relief safety valve 10, the air inlet and outlet pipeline 20, the drying filter 30, the one-way air outlet valve 40, the air outlet pipeline 50 and be discharged to the atmospheric environment outside the battery pack 00, when the gases pass through the drying filter 30, part of the harmful gases can be dried and filtered through the filter, so as to ensure that the concentration and proportion of the harmful gases in the discharged environment are reduced to a certain extent, can ensure environmental protection and reduce the damage to human body.
On the contrary, under certain conditions, for example, due to shutdown, cooling and other factors of the battery pack 00, the atmospheric pressure inside the battery pack 00 is lower than the atmospheric pressure outside the battery pack, the ambient atmosphere enters the drying filter 30 through the one-way air inlet valve 70 and the air inlet pipeline 60 after being filtered by the air filter 80, and enters the battery pack 00 through the air inlet and outlet pipeline 20 and the pressure relief safety valve 10, at this time, the air enters the battery pack 00 after being filtered by the air filter 80 and is dried by the dryer filter 30, so that the pressure relief safety valve 10, the battery pack 00 and the like are ensured to work in a clean and dry environment, the function of the pressure relief safety valve 10 is well protected, all components such as electronic components and electrical core components inside the battery pack 00 work in the clean and dry environment, and the functions of the electronic components, the electrical core and other components inside the battery pack 00 are ensured not to be affected by water vapor and pollutants, the reliability and safety of the components within the battery pack 00 are increased.
Example 2
Example 2 as shown in fig. 3, under certain conditions, the acid gases and other gases inside the battery pack 00 do not require dry cleaning. At this time, the air outlet pipeline 50 is not arranged on the drying filter 30, one air outlet pipeline 50 is respectively arranged on the two air inlet and outlet pipelines 20, and the two one-way air outlet valves 40 are respectively arranged on the two air outlet pipelines 50. The acid gas and other gases inside the battery pack 00 are discharged to the atmosphere outside the battery pack 00 through the pressure relief safety valve 10, the air inlet and outlet pipeline 20, the one-way air outlet valve 40 and the air outlet pipeline 50 in sequence.
Example 3
Example 3 as shown in fig. 4, under certain conditions, the gas entering and exiting the battery pack 00 need not be dried, but air filtration is required to ensure that the interior of the battery pack 00 is clean. At this time, only two air inlet and outlet pipelines 20 need to be connected with the air filter 80, and the drying filter 30, the one-way air outlet valve 40, the air outlet pipeline 50, the air inlet pipeline 60 and the one-way air inlet valve 70 are not needed.
Example 4
Example 4 as shown in fig. 5, under certain conditions, the gas entering and exiting the battery pack 00 does not need drying filtration and air filtration, and only the inlet and outlet are transferred to the position of the principle pressure relief safety valve 10 through a pipeline, so that the damage of the battery pack 00 and the environmental pollution can be reduced to an acceptable level. In this case, it is only necessary to connect the two air inlet and outlet pipes 20 to the two pressure relief safety valves 10, respectively, and no other parts are required.
Further, in addition to the above four embodiments, the present invention is also within the scope of the present invention, wherein the ventilation system is formed by a part assembly formed by one or more machining processes between the pressure relief valve 10 and each of the newly added parts (the dry filter 30, the air filter 80, the one-way air outlet valve 40, the one-way air inlet valve 70, the air inlet/outlet pipeline 20, the air outlet pipeline 50, and the air inlet pipeline 60), or formed by one or more machining processes between each of the newly added parts.
Further, the number of components included in the present invention patent, such as the pressure relief safety valve 10 and the newly added components (the dry filter 30, the air filter 80, the one-way air outlet valve 40, the one-way air inlet valve 70, the air inlet and outlet pipe 20, the air outlet pipe 50, and the air inlet pipe 60) is a component set that constitutes an unnecessary condition of the present invention patent, wherein the number of the pressure relief safety valve 10 may be one, two, or more, the number of the newly added components (the dry filter 30, the air filter 80, the one-way air outlet valve 40, the one-way air inlet valve 70, the air inlet and outlet pipe 20, the air outlet pipe 50, and the air inlet pipe 60) connected to the pressure relief safety valve 10 may be zero, one, two, or more, but the sum of the total number of the newly.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. A battery pack ventilation drying and filtering system comprises a battery pack and a pressure relief safety valve, wherein the pressure relief safety valve is arranged on the battery pack;
one port of the air inlet pipeline, one port of the air outlet pipeline and one port of the air inlet pipeline are communicated with the dry filter;
the other port of the gas inlet and outlet pipeline is communicated with the pressure relief safety valve;
the one-way air outlet valve is arranged on the air outlet pipeline, and the one-way air inlet valve is arranged on the air inlet pipeline;
the air filter is communicated with the other port of the air inlet pipeline.
2. The battery pack vent, filter-drier system of claim 1 wherein the port of the outlet line that communicates with the filter-drier is moved into communication with the inlet and outlet lines.
3. The battery pack ventilation, drying and filtration system of claim 1, wherein the battery pack is a power battery pack used on an electric automobile or a battery pack used on an electric motorcycle or an electric bicycle.
4. The battery pack vent, dry and filter system of claim 1, wherein the pressure relief valve is a valve through which air or water vapor freely passes under pressure.
5. The battery pack vent, dry filter system of claim 1, wherein the filter-drier is made of plastic or metal and has a desiccant disposed therein.
6. The battery pack vent, dry and filter system of claim 1, wherein the air filter is made of plastic or metal and has a filter sponge disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910946538.4A CN110620203A (en) | 2019-10-05 | 2019-10-05 | Battery pack ventilation drying and filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910946538.4A CN110620203A (en) | 2019-10-05 | 2019-10-05 | Battery pack ventilation drying and filtering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110620203A true CN110620203A (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910946538.4A Pending CN110620203A (en) | 2019-10-05 | 2019-10-05 | Battery pack ventilation drying and filtering system |
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| Country | Link |
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| CN (1) | CN110620203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069063A (en) * | 2020-08-07 | 2022-02-18 | 郑州宇通集团有限公司 | a power system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527449A (en) * | 2014-08-01 | 2015-04-22 | 成都雅骏新能源汽车科技股份有限公司(中国) | Wadable safe and environment-friendly automotive battery pack system |
| CN107482142A (en) * | 2016-08-29 | 2017-12-15 | 宝沃汽车（中国）有限公司 | For vehicle battery bag and there is its vehicle |
| CN210516847U (en) * | 2019-10-05 | 2020-05-12 | 上海保岭新能源科技有限公司 | Battery pack ventilation drying and filtering system |
-
2019
- 2019-10-05 CN CN201910946538.4A patent/CN110620203A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527449A (en) * | 2014-08-01 | 2015-04-22 | 成都雅骏新能源汽车科技股份有限公司(中国) | Wadable safe and environment-friendly automotive battery pack system |
| CN107482142A (en) * | 2016-08-29 | 2017-12-15 | 宝沃汽车（中国）有限公司 | For vehicle battery bag and there is its vehicle |
| CN210516847U (en) * | 2019-10-05 | 2020-05-12 | 上海保岭新能源科技有限公司 | Battery pack ventilation drying and filtering system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069063A (en) * | 2020-08-07 | 2022-02-18 | 郑州宇通集团有限公司 | a power system |
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