CN108565508B - Bulging monitoring system for deep-sea oil-filled lithium battery - Google Patents
Bulging monitoring system for deep-sea oil-filled lithium battery Download PDFInfo
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- CN108565508B CN108565508B CN201810320544.4A CN201810320544A CN108565508B CN 108565508 B CN108565508 B CN 108565508B CN 201810320544 A CN201810320544 A CN 201810320544A CN 108565508 B CN108565508 B CN 108565508B
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- bulging
- lithium battery
- monitoring
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- oil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
Abstract
The invention discloses a bulging monitoring system for a deep sea oil-filled lithium battery, which comprises a battery management system and a deep sea lithium battery bulging monitoring sensor, wherein an acquisition circuit in the battery management system is electrically connected with the deep sea lithium battery bulging monitoring sensor through a concentrated wiring harness, and an oil-filled compensation structure is arranged in the deep sea lithium battery bulging monitoring sensor; the invention solves the problem of false alarm of the sensor due to the existence of ultrahigh pressure in the deep-sea ultrahigh-pressure environment by the oil-filled compensation structure designed on the lithium battery bulging monitoring sensor. And the resistance value of the whole bulging monitoring network is comprehensively monitored by using a bulging monitoring sensor resistance value acquisition circuit integrated in the battery management system. The invention has simple structure, high reliability and lower manufacturing cost, and can realize standardized production.
Description
Technical Field
The invention relates to the technical field of safety monitoring of deep sea environment lithium batteries, and particularly provides a bulging monitoring system for a deep sea oil-filled lithium battery.
Background
Lithium batteries are used as power energy systems of new-generation submersible devices and are increasingly applied to various deep sea equipment, and electrode materials of the lithium batteries are more active, so that the safety monitoring of the lithium batteries is particularly important in the deep sea ultrahigh pressure environment. Currently, the lithium battery in the submersible is used in a manner including a normal pressure type and an oil-filled type. The normal pressure type lithium battery is arranged in the pressure-resistant shell, the lithium battery does not need to be self pressure-resistant, but the weight of the pressure-resistant shell can be continuously increased along with the increase of the design depth of the submersible, and the performance of the submersible is seriously influenced. The oil-filled lithium battery is installed in the battery box full of hydraulic oil, and seawater pressure can be transmitted to the lithium battery through the hydraulic oil, so that the weight of the battery box body is not required to be increased, the performance of the submersible can be effectively improved, and the lithium battery body is required to be pressure-resistant. The deep sea oil-filled lithium battery needs more safety monitoring on the lithium battery due to the special application environment, and the monitoring on the swelling condition of the lithium battery needs to be increased besides conventional voltage, temperature and insulation detection. When the lithium battery is in internal short circuit or overcharged, the temperature inside the battery is continuously raised, gas expansion can be generated, and then the lithium battery is expanded or even broken, so that the safety of the submersible is seriously influenced. Therefore, monitoring the swelling condition of the lithium battery is an important component for monitoring the safety of the deep sea submersible vehicle.
Therefore, the person skilled in the art provides a swelling monitoring system for deep-sea oil-filled lithium battery to solve the problems mentioned in the background art.
Disclosure of Invention
The invention aims to provide a bulge monitoring system for a deep sea oil-filled lithium battery, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a deep sea is bloated monitoring system for oil-filled lithium cell, includes battery management system and deep sea lithium cell bulging monitoring sensor, the collection circuit in the battery management system passes through line concentration bundle electric connection deep sea lithium cell bulging monitoring sensor, deep sea lithium cell bulging monitoring sensor is inside to be provided with oil-filled compensation structure.
As an improvement: the oil-filled compensation structure comprises an upper conducting layer, a lower conducting layer, an intermediate isolating layer, through holes and a conducting ink ribbon, wherein the intermediate isolating layer is arranged between the upper conducting layer and the lower conducting layer, the through holes penetrate through the upper conducting layer, the lower conducting layer and the intermediate isolating layer, and the through holes are communicated through the conducting ink ribbon; hydraulic oil enters the oil-filled compensation structure through the through hole to isolate the upper conducting layer from the lower conducting layer, so that the oil-filled compensation structure is balanced with the internal and external pressure of a deep sea oil-filled environment, and the upper conducting layer is prevented from being in mistaken contact with the lower conducting layer under high deep sea pressure to cause false alarm; the deep sea lithium battery bulging monitoring sensor is adhered to the surface of the lithium battery, when the lithium battery bulges in the deep sea oil-filled environment, the upper conducting layer is in contact with the lower conducting layer, the resistance value of the deep sea lithium battery bulging monitoring sensor detected by the acquisition circuit in the battery management system through the conducting ink belt and the integrated wiring harness is smaller than a preset threshold value, the battery management system sends an alarm to the upper level control system, and meanwhile, the charging and discharging circuit of the deep sea oil-filled lithium battery is cut off.
As a further improvement: and a plurality of the deep-sea lithium battery bulging monitoring sensors are combined into a bulging monitoring network through a concentrated wiring harness.
As a further improvement: the bulging monitoring sensor is of a three-layer PVC film structure.
Compared with the prior art, the invention has the advantages that: the invention solves the problem of false alarm of the sensor due to the existence of ultrahigh pressure in the deep-sea ultrahigh-pressure environment by the oil-filled compensation structure designed on the lithium battery bulging monitoring sensor. And the resistance value of the whole bulging monitoring network is comprehensively monitored by using a bulging monitoring sensor resistance value acquisition circuit integrated in the battery management system. The invention has simple structure, high reliability and lower manufacturing cost, and can realize standardized production.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic structural diagram of a deep sea lithium battery swelling monitoring sensor according to the present invention;
FIG. 2 is a cross-sectional view of an oil-filled compensation structure according to the present invention;
fig. 3 is a schematic diagram of a bulge monitoring network including a battery management system according to the present invention.
In the figure: 1. a deep sea lithium battery bulging monitoring sensor; 2. collecting the wiring harness; 3. a battery management system; 4. an upper conductive layer; 5. a lower conductive layer; 6. an intermediate isolation layer; 7. an oil-filled compensation structure; 8. a conductive ink ribbon; 9. and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a bulging monitoring system for a deep sea oil-filled lithium battery includes a battery management system 3 and a deep sea lithium battery bulging monitoring sensor 1, an acquisition circuit in the battery management system is electrically connected to the deep sea lithium battery bulging monitoring sensor 1 through a connection line bundle 2, and an oil-filled compensation structure 7 is disposed inside the deep sea lithium battery bulging monitoring sensor 1.
The oil-filled compensation structure 7 comprises an upper conducting layer 4, a lower conducting layer 5, an intermediate isolation layer 6, through holes 9 and a conductive ink ribbon 8, wherein the intermediate isolation layer 6 is arranged between the upper conducting layer 4 and the lower conducting layer 5, the through holes 9 penetrate through the upper conducting layer 4, the lower conducting layer 5 and the intermediate isolation layer 6, and the through holes 9 are communicated through the conductive ink ribbon 8; hydraulic oil enters the oil-filled compensation structure 7 through the through hole 9, the upper conducting layer 4 and the lower conducting layer 5 are isolated, so that the internal and external pressures of the oil-filled compensation structure 7 and the deep sea oil-filled environment are balanced, and the upper conducting layer 4 is prevented from being in false contact with the lower conducting layer 5 under the high pressure of deep sea, and false alarm is caused. The bulging monitoring sensor 1 is adhered to the surface of the lithium battery, when the lithium battery bulges in the deep sea oil-filled environment, the upper conducting layer 4 is in contact with the lower conducting layer 5, the resistance value of the bulging monitoring sensor 1 of the deep sea lithium battery is detected by the acquisition circuit in the battery management system 3 through the conductive ink ribbon 8 and the header wiring harness 2 to be smaller than a preset threshold value, the battery management system 3 sends an alarm to the previous level control system, and meanwhile, the charging and discharging circuit of the deep sea oil-filled lithium battery is cut off.
And a plurality of deep-sea lithium battery bulging monitoring sensors 1 are combined into a bulging monitoring network through a concentrated wiring harness 2.
The bulging monitoring sensor 1 is of a three-layer PVC film structure.
The working principle of the invention is as follows: when the invention is used, the deep-sea lithium battery bulging monitoring sensors 1 are adhered to the surfaces of the lithium batteries, the deep-sea lithium battery bulging monitoring sensors 1 are combined into a bulging monitoring network through the collecting wiring harness 2, and the battery management system 3 judges the bulging condition of the lithium batteries through monitoring the resistance value of the bulging monitoring network.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. The utility model provides a deep sea oil charge bulging monitoring system for lithium cell which characterized in that: the monitoring device comprises a battery management system (3) and a deep-sea lithium battery bulging monitoring sensor (1), wherein an acquisition circuit in the battery management system is electrically connected with the deep-sea lithium battery bulging monitoring sensor (1) through a concentrated wiring harness (2), and an oil-filled compensation structure (7) is arranged in the deep-sea lithium battery bulging monitoring sensor (1); the oil-filled compensation structure (7) comprises an upper conducting layer (4), a lower conducting layer (5), an intermediate isolation layer (6), through holes (9) and a conductive ink band (8), wherein the intermediate isolation layer (6) is arranged between the upper conducting layer (4) and the lower conducting layer (5), the through holes (9) penetrate through the upper conducting layer (4), the lower conducting layer (5) and the intermediate isolation layer (6), and the through holes (9) are communicated with one another through the conductive ink band (8); the multiple deep-sea lithium battery bulging monitoring sensors (1) are combined into a bulging monitoring network through a centralized connection wire harness (2); the bulging monitoring sensor (1) is of a three-layer PVC film structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320544.4A CN108565508B (en) | 2018-04-11 | 2018-04-11 | Bulging monitoring system for deep-sea oil-filled lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320544.4A CN108565508B (en) | 2018-04-11 | 2018-04-11 | Bulging monitoring system for deep-sea oil-filled lithium battery |
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| Publication Number | Publication Date |
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| CN108565508A CN108565508A (en) | 2018-09-21 |
| CN108565508B true CN108565508B (en) | 2020-04-28 |
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| CN201810320544.4A Active CN108565508B (en) | 2018-04-11 | 2018-04-11 | Bulging monitoring system for deep-sea oil-filled lithium battery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203386816U (en) * | 2013-06-26 | 2014-01-08 | 北京先驱高技术开发公司 | Deep-sea high-power lithium battery device |
| CN203445205U (en) * | 2013-07-30 | 2014-02-19 | 戴国群 | Intelligent monitoring system for battery ballooning |
| CN103700793A (en) * | 2013-12-26 | 2014-04-02 | 北京神州远望科技有限公司 | Lithium battery pack with automatic deep water pressure compensation function |
| CN103843241A (en) * | 2011-10-06 | 2014-06-04 | 西门子公司 | Power cell for deepwater application |
| CN106353682A (en) * | 2015-07-17 | 2017-01-25 | 中兴通讯股份有限公司 | Battery bulking detection apparatus and method |
-
2018
- 2018-04-11 CN CN201810320544.4A patent/CN108565508B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103843241A (en) * | 2011-10-06 | 2014-06-04 | 西门子公司 | Power cell for deepwater application |
| CN203386816U (en) * | 2013-06-26 | 2014-01-08 | 北京先驱高技术开发公司 | Deep-sea high-power lithium battery device |
| CN203445205U (en) * | 2013-07-30 | 2014-02-19 | 戴国群 | Intelligent monitoring system for battery ballooning |
| CN103700793A (en) * | 2013-12-26 | 2014-04-02 | 北京神州远望科技有限公司 | Lithium battery pack with automatic deep water pressure compensation function |
| CN106353682A (en) * | 2015-07-17 | 2017-01-25 | 中兴通讯股份有限公司 | Battery bulking detection apparatus and method |
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| CN108565508A (en) | 2018-09-21 |
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