CN111271944A - Battery box device with condensation detects and drying function - Google Patents
Battery box device with condensation detects and drying function Download PDFInfo
- Publication number
- CN111271944A CN111271944A CN201811473503.5A CN201811473503A CN111271944A CN 111271944 A CN111271944 A CN 111271944A CN 201811473503 A CN201811473503 A CN 201811473503A CN 111271944 A CN111271944 A CN 111271944A
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- Prior art keywords
- box body
- drying
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- bcu
- quick
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Links
- 238000001035 drying Methods 0.000 title claims abstract description 58
- 238000009833 condensation Methods 0.000 title claims abstract description 20
- 230000005494 condensation Effects 0.000 title claims abstract description 20
- 230000008054 signal transmission Effects 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 9
- 230000010354 integration Effects 0.000 claims abstract description 4
- FWIJKWMXNHRSRO-UHFFFAOYSA-N 1-(3-tert-butyl-1-methylpyrazol-5-yl)-3-(4-chlorophenyl)urea Chemical compound CN1N=C(C(C)(C)C)C=C1NC(=O)NC1=CC=C(Cl)C=C1 FWIJKWMXNHRSRO-UHFFFAOYSA-N 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical group [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/16—Drying solid materials or objects by processes not involving the application of heat by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/009—Alarm systems; Safety sytems, e.g. preventing fire and explosions
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Gases (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention belongs to the technical field of automobile accessories, and particularly relates to a battery box device with condensation detection and drying functions, which is characterized in that: the system comprises a drying device (9), a signal acquisition unit (2), a data transmission and processing unit, a quick change integration unit (8) and a digital display alarm unit; the drying device (9) is arranged on the quick-change integrated unit (8), the quick-change integrated unit (8) is arranged on the box body (1), a drying and dehumidifying agent is arranged in the drying device (9), and the drying device (9) extends into the box body; the signal acquisition unit (2) consists of a temperature and humidity sensor and an A/D converter, and the temperature and humidity sensor is connected with the A/D converter; the data transmission and processing unit consists of a signal transmission bus, a BCU and a BMU; the A/D converter is connected with the BMU through a signal transmission bus, and the BCU is connected with the BMU; the digital display alarm unit can receive signals of the BCU. The invention can quickly replace the drying device in the box body from the outside of the box body, and the water absorption effect is direct and quick.
Description
Technical Field
The invention belongs to the technical field of automobile accessories, and is suitable for a battery box running under high-temperature and high-humidity road conditions, in particular to a battery box which is cooled in a liquid cooling mode and is likely to have a condensation phenomenon.
Background
The liquid cooling technology of the lithium battery is widely applied to the field of new energy pure electric vehicles and hybrid new energy vehicles. At present, in the using process of users, especially in most southern parts of China in summer, a power battery inevitably works in a high-temperature and high-humidity environment for a long time, when a liquid cooling device is started, the temperature difference between the surface of a cooling plate and the inside of a box is large, and when the liquid cooling device reaches a condensation state, condensed water is generated on the surface of the cooling plate, so that the insulating and protecting performance among electric elements in the box is greatly reduced; the condensate water on the metal surface also brings the risk of corrosion of the tab, the sheet metal part and the like. Therefore, how to effectively detect whether condensed water is formed in the box or not and quickly remove the condensed water out of the box in the use process of the battery module in the actual environment is a key problem of the technical research. CN107528096A discloses that heating element 2, moisture condensation device 3 and air intake fan 4 are connected to air intake duct 12 from battery box 11 to outside in turn, and the outside air is sent into the upper part of battery box 11 after passing through air intake fan 4, moisture condensation device 3 and heating element 2 in turn, but it can only solve the problem that the humidity of the incoming air is small (the effect is slow through the mode of inputting the humidity in the dry air comprehensive box), and when the road condition of high temperature and high humidity, the condensation in the box can not be solved well.
Disclosure of Invention
In order to solve the technical problems, the invention provides a battery box device which can rapidly replace a drying device in a box body from the outside of the box body, has direct and rapid water absorption effect, reasonable structure, safety and reliability and has condensation detection and drying functions, and aims to solve the problems that the surface of a cooling plate in a lithium battery box is condensed with water, the insulation protection performance between electric elements is reduced, and lugs, sheet metal parts and the like are corroded in the prior art.
The technical scheme of the invention is as follows:
a battery box device with condensation detection and drying functions comprises a drying device (9), a signal acquisition unit (2), a data transmission and processing unit, a quick change integration unit (8) and a digital display alarm unit; the drying device (9) is arranged on the quick-change integrated unit (8), the quick-change integrated unit (8) is arranged on the box body (1), a drying and dehumidifying agent is arranged in the drying device (9) and used for removing water vapor in the box body, and the drying device (9) extends into the box body; the signal acquisition unit (2) consists of a temperature and humidity sensor and an A/D converter, and the temperature and humidity sensor is connected with the A/D converter and used for converting temperature and humidity signals into electric signals; the data transmission and processing unit consists of a signal transmission bus (4), a BCU (binary coded decimal) and a BMU (5); the A/D converter is connected with the BMU (5) through a signal transmission bus (4), and the BCU is connected with the BMU (5); the digital display alarm unit can receive signals of the BCU.
Furthermore, a battery module (3) is arranged in the box body (1), and an aluminum cold plate (6) is arranged on the side wall of the battery module (3).
Furthermore, the digital display alarm unit is arranged outside the box body (1), the BCU has the functions of storing signals and processing signals, the transmitted signals can be analyzed, whether the signals reach the set start-stop threshold value or not is judged, and when the signals received by the BCU reach the alarm threshold value, the digital display alarm unit responds. The operator judges whether to start the quick-change integrated unit according to the warning signal.
Furthermore, the signal transmission bus (4) consists of a front end plug-in, a transition wire harness and a rear end plug-in; the BMU (5) is arranged in the box body (1), the BCU is arranged outside the box body (1), and the BCU stores and summarizes data information reported by the battery boxes.
Further, the BCU and the BMU (5) are connected through a signal transmission bus (4) and a low-voltage connector (7).
Furthermore, the quick-change integrated unit (8) is arranged on the side wall of the box body (1) or the bottom of the box body (1), the box body (1) is provided with a window, and the drying device (9) extends into the box body (1) through the window; the drying and dehumidifying agent is calcium sulfide or calcium chloride.
Further, the drying device (9) is arranged on the quick-change integrated unit (8) through a bolt, the plate cover (1) can cover the quick-change integrated unit (8) through the bolt, and the quick-change integrated unit (8) can be sealed with the box body (1) through a sealing ring (10). The sealing performance of the box body can reach the IP67 or IP68 protection grade in the installation process, and the drying device can be conveniently and quickly assembled, disassembled and replaced
Furthermore, the temperature and humidity sensor has the temperature measuring range of-30 ℃ to 60 ℃, the humidity measuring range of 0 to 90 percent of relative humidity, the temperature measuring precision of +/-0.1 ℃ and the humidity measuring precision of +/-1 percent.
Defining:
BCU: battery Control Unit, namely a Battery Control Unit.
BMU: battery Monitoring Unit.
The invention has the beneficial effects that:
1) according to the invention, the quick-change drying device can be quickly disassembled through the outside of the box body, a box cover is not required to be taken off, the plate cover on the outer side of the box body is taken down, and then the quick-change integrated unit and the drying device extending into the box body are replaced according to the requirements.
2) Through taking out the drying device who directly absorbs vapor in the box inside, and then can more thoroughly get rid of the problem of vapor condensation fast. The full-automatic instability can be avoided through manual replacement, the replacement time can be adjusted manually according to actual needs (strict control on the dew point state in the box can be realized through the matching setting of the content of the drying dehumidifying agent and the alarm threshold value, the drying dehumidifying amount is selected, the alarm threshold value can be set in a matching mode according to the actual volume size of the box and the working environment of the box, and the like), and the full-automatic dehumidification box is reasonable in structure, high in reliability and good in safety.
3) Through the signal acquisition unit, the data transmission and processing unit, the quick change integrated unit, the digital display alarm unit provides the convenience of detection, has realized the transmission of signal, processing simultaneously and to the real time monitoring of incasement temperature and humidity state.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 shows a schematic of the structure of the present invention;
fig. 3 shows a schematic structural diagram of a drying device and a quick-change integrated unit;
FIG. 4 is a schematic structural diagram of a plate cover, a sealing ring and a box body;
the reference numbers are as follows:
1-a box body; 2-a signal acquisition unit; 3-a battery module; 4-a signal transmission bus; 5-BMU; 6-aluminum cold plate; 7-low voltage connector; 8-a quick-change integrated unit; 9-a drying device; 10-a sealing ring; 11-plate cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and completely with reference to the following embodiments and accompanying drawings 1-4. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.
Example 1
A battery box device with condensation detection and drying functions comprises a drying device (9), a signal acquisition unit (2), a data transmission and processing unit, a quick change integration unit (8) and a digital display alarm unit; the drying device (9) is arranged on the quick-change integrated unit (8), the quick-change integrated unit (8) is arranged on the side wall of the box body (1), a drying dehumidifying agent is arranged in the drying device (9), the drying dehumidifying agent is calcium sulfide or calcium chloride and is used for removing water vapor in the box body, the box body (1) is provided with a window, and the drying device (9) extends into the box body (1) through the window; the signal acquisition unit (2) consists of a temperature and humidity sensor and an A/D converter, and the temperature and humidity sensor is connected with the A/D converter and used for converting temperature and humidity signals into electric signals; the data transmission and processing unit consists of a signal transmission bus (4), a BCU (binary coded decimal) and a BMU (5); the A/D converter is connected with the BMU (5) through a signal transmission bus (4), and the BCU is connected with the BMU (5); the digital display alarm unit can receive signals of the BCU.
A battery module (3) is arranged in the box body (1), and an aluminum cold plate (6) is arranged on the side wall of the battery module (3). The digital display alarm unit is arranged outside the box body (1), the BCU has the functions of storing signals and processing signals, the transmitted signals can be analyzed, whether the signals reach the set start-stop threshold value or not is judged, and when the signals received by the BCU reach the alarm threshold value, the digital display alarm unit responds. The operator judges whether to start the quick-change integrated unit according to the warning signal.
Preferably, the signal transmission bus (4) consists of a front-end plug-in, a transition wire harness and a rear-end plug-in; the BMU (5) is arranged in the box body (1), the BCU is arranged outside the box body (1), and the BCU stores and summarizes data information reported by the battery boxes.
The BCU and the BMU (5) are connected through a signal transmission bus (4) and a low-voltage connector (7).
Preferably, the drying device (9) is arranged on the quick-change integrated unit (8) through bolts, the plate cover (11) can cover the quick-change integrated unit (8) through the bolts, the quick-change integrated unit (8) can be sealed with the box body (1) through the sealing ring (10), the tightness of the box body is guaranteed to reach the protection level of IP67 or IP68, and meanwhile the drying device is convenient to mount, dismount and replace quickly.
Example 2
The quick-change integrated unit (8) is arranged at the bottom of the box body (1), and the rest is the same as that of the embodiment 1.
The working process is as follows:
when the aluminum cold plate (6) works, cooling water with lower temperature is introduced into the aluminum cold plate, so that the difference between the surface temperature of the cold plate and the ambient temperature in the box is larger, the air humidity in the box body is gradually increased, and when the humidity is within a certain range, the drying device (9) in the box acts to absorb water vapor in the box through the internal drying and dehumidifying agent, so that the drying in the box body is ensured; when the humidity in the box exceeds the absorption capacity of the drying dehumidifying agent, the dew point state of the box is about to reach, at the moment, the signal acquisition unit (2) acts, a built-in temperature and humidity sensor detects the temperature and humidity state, the temperature and humidity state is transmitted to the A/D converter, a physical signal is converted into an electric signal, the electric signal is transmitted to the BMU (5) through the signal transmission bus (4), the electric signal is further transmitted to the BCU outside the box through the low-voltage connector (7), the judgment is carried out through the built-in program logic and the alarm threshold value of the BCU, whether the dew point state is reached in the box or not, if the set alarm threshold value is reached, the digital display alarm unit works, and the problem warning and reporting are carried out through the visual. When the operator receives the warning prompt, the quick change integrated unit and the drying device are replaced by hand operation until the alarm of the digital display alarm unit is relieved, and the operation can be normal.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict. The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a battery box device with condensation detects and drying function which characterized in that: the system comprises a drying device (9), a signal acquisition unit (2), a data transmission and processing unit, a quick change integration unit (8) and a digital display alarm unit; the drying device (9) is arranged on the quick-change integrated unit (8), the quick-change integrated unit (8) is arranged on the box body (1), a drying and dehumidifying agent is arranged in the drying device (9), and the drying device (9) extends into the box body; the signal acquisition unit (2) consists of a temperature and humidity sensor and an A/D converter, and the temperature and humidity sensor is connected with the A/D converter; the data transmission and processing unit consists of a signal transmission bus (4), a BCU (binary coded decimal) and a BMU (5); the A/D converter is connected with the BMU (5) through a signal transmission bus (4), and the BCU is connected with the BMU (5); the digital display alarm unit can receive signals of the BCU.
2. The battery box device with the functions of condensation detection and drying according to claim 1, characterized in that: a battery module (3) is arranged in the box body (1), and an aluminum cold plate (6) is arranged on the side wall of the battery module (3).
3. The battery box device with the functions of condensation detection and drying according to claim 1, characterized in that: the digital display alarm unit is arranged outside the box body (1), and responds when the signal of the BCU reaches an alarm threshold value.
4. The battery box device with the functions of condensation detection and drying according to claim 1, characterized in that: the signal transmission bus (4) consists of a front end plug-in, a transition wire harness and a rear end plug-in; the BMU (5) is arranged in the box body (1), and the BCU is arranged outside the box body (1).
5. The battery box device with the functions of condensation detection and drying according to claim 1, characterized in that: the BCU and the BMU (5) are connected through a signal transmission bus (4) and a low-voltage connector (7).
6. The battery box device with the functions of condensation detection and drying according to claim 1, characterized in that: the quick-change integrated unit (8) is arranged on the side wall of the box body (1) or the bottom of the box body (1), the box body (1) is provided with a window, and the drying device (9) extends into the box body (1) through the window; the drying and dehumidifying agent is calcium sulfide or calcium chloride.
7. The battery box device with the functions of condensation detection and drying according to claim 1, characterized in that: drying device (9) pass through the bolt setting on quick change integrated unit (8), and board cover (11) can cover quick change integrated unit (8) through the bolt, and quick change integrated unit (8) can realize sealed with box (1) through sealing washer (10).
8. The battery box device with the functions of condensation detection and drying according to claim 1, characterized in that: the temperature and humidity sensor has a temperature measuring range of-30-60 ℃ and a humidity measuring range of 0-90% of relative humidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473503.5A CN111271944A (en) | 2018-12-04 | 2018-12-04 | Battery box device with condensation detects and drying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473503.5A CN111271944A (en) | 2018-12-04 | 2018-12-04 | Battery box device with condensation detects and drying function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271944A true CN111271944A (en) | 2020-06-12 |
Family
ID=70998603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811473503.5A Pending CN111271944A (en) | 2018-12-04 | 2018-12-04 | Battery box device with condensation detects and drying function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111271944A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113948813A (en) * | 2020-07-17 | 2022-01-18 | 上海汽车集团股份有限公司 | Explosion-proof control system and method for power battery |
| CN114447468A (en) * | 2020-11-05 | 2022-05-06 | 郑州宇通集团有限公司 | Condensation preventing structure and condensation preventing method of power battery box |
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| US20130252043A1 (en) * | 2010-12-14 | 2013-09-26 | A123 Systems, Inc. | System and Method for Controlling Humidity in a Battery Module |
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| US20170023299A1 (en) * | 2015-07-20 | 2017-01-26 | OllieBud LLC | Drying Device |
| CN107528096A (en) * | 2017-08-28 | 2017-12-29 | 李伟 | A kind of batteries of electric automobile protector |
| CN209399656U (en) * | 2018-12-04 | 2019-09-17 | 中信国安盟固利动力科技有限公司 | A kind of battery case apparatus with condensation detection and functions/drying |
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2018
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| US20130252043A1 (en) * | 2010-12-14 | 2013-09-26 | A123 Systems, Inc. | System and Method for Controlling Humidity in a Battery Module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113948813A (en) * | 2020-07-17 | 2022-01-18 | 上海汽车集团股份有限公司 | Explosion-proof control system and method for power battery |
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| CN114447468A (en) * | 2020-11-05 | 2022-05-06 | 郑州宇通集团有限公司 | Condensation preventing structure and condensation preventing method of power battery box |
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