CN112345172A - Liquid leakage detection paste and liquid leakage detection device - Google Patents
Liquid leakage detection paste and liquid leakage detection device Download PDFInfo
- Publication number
- CN112345172A CN112345172A CN202011301699.7A CN202011301699A CN112345172A CN 112345172 A CN112345172 A CN 112345172A CN 202011301699 A CN202011301699 A CN 202011301699A CN 112345172 A CN112345172 A CN 112345172A
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- Prior art keywords
- liquid leakage
- leakage detection
- electrode plate
- branch
- detection patch
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- 238000001514 detection method Methods 0.000 title claims abstract description 80
- 239000007788 liquid Substances 0.000 title claims abstract description 76
- 239000010410 layer Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 239000012790 adhesive layer Substances 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 239000011888 foil Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011889 copper foil Substances 0.000 claims description 8
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a liquid leakage detection patch and a liquid leakage detection device comprising the same. The liquid leakage detection paste provided by the invention is arranged on the outer surface of a battery box body in a storage battery, which is positioned at a liquid leakage detection position, and comprises: the electrode plates are mutually independent and correspondingly arranged, each electrode plate comprises a main guide bar and a plurality of branch guide bars connected with the main guide bar respectively, all the branch guide bars in one electrode plate are arranged at intervals in sequence along the length direction of the corresponding main guide bar and extend towards the direction of the other main guide bar respectively, all the branch guide bars in one electrode plate and all the branch guide bars in the other electrode plate are alternately arranged in sequence, gaps are arranged between every two adjacent branch guide bars and between the branch guide bars in one electrode plate and the main guide bar in the other electrode plate, and each electrode plate is composed of a conductive metal layer and an adhesive layer compounded on one side surface of the conductive metal layer.
Description
Technical Field
The invention belongs to the technical field of liquid leakage detection of storage batteries, and particularly relates to a liquid leakage detection paste and a liquid leakage detection device comprising the same.
Background
Liquid leakage detection has wide application in different fields, such as: petroleum pipelines, medical devices, the battery industry, and the like. In the prior art, two methods, namely a lead type liquid leakage detection method and a grid type liquid leakage detection method, are mainly used for detecting liquid leakage in the battery industry.
The wire type inspection method using a band main body in which a wire is embedded as shown in fig. 4 is still operable for a battery under construction, but the method requires winding of a battery body and is limited by an inspection area, and in particular, it is basically impossible to construct a battery that has been mounted in place. Grid mesh
The grid type liquid leakage detection method adopts grids as shown in fig. 5, and the method needs to be designed when batteries are grouped, so that the batteries which are already installed in place cannot be installed in the later period, and the limitation is too large; meanwhile, the grid design needs higher processing precision, which results in high manufacturing cost.
In summary, the existing liquid leakage detection method in the battery industry is complex, high in processing cost and difficult to install, and cannot be applied to liquid leakage detection of the storage battery which is installed in place or is being installed.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a liquid leakage detection patch which has a simple structure, is easy to process, has a low cost, is easy to install, and is suitable for use in a battery which is already installed in place or is being installed, and a liquid leakage detection device including the liquid leakage detection patch.
In order to achieve the purpose, the invention adopts the following technical scheme:
< first embodiment >
The invention provides a liquid leakage detection patch, which is arranged on the outer surface of a battery box body in a storage battery at a liquid leakage detection position, and is characterized by comprising: the electrode plates are mutually independent and correspondingly arranged, each electrode plate comprises a main guide bar and a plurality of branch guide bars connected with the main guide bar respectively, all the branch guide bars in one electrode plate are arranged at intervals in sequence along the length direction of the corresponding main guide bar and extend towards the direction of the other main guide bar respectively, all the branch guide bars in one electrode plate and all the branch guide bars in the other electrode plate are alternately arranged in sequence, gaps are arranged between every two adjacent branch guide bars and between the branch guide bars in one electrode plate and the main guide bar in the other electrode plate, and each electrode plate is composed of a conductive metal layer and an adhesive layer compounded on one side surface of the conductive metal layer.
The liquid leakage detection patch provided by the present invention may further have the following features: wherein each electrode sheet has at least one trunk portion provided at one end portion of the main conducting bar or at a free end portion of the branch conducting bar at the end portion of the main conducting bar.
The liquid leakage detection patch provided by the present invention may further have the following features: the electrode plate is composed of a conductive metal layer and an adhesive layer compounded on one side surface of the conductive metal layer.
The liquid leakage detection patch provided by the present invention may further have the following features: wherein the conductive metal layer is an aluminum foil or a copper foil, and the thicknesses of the aluminum foil and the copper foil are both 0.05-0.15 mm.
The liquid leakage detection patch provided by the present invention may further have the following features: wherein the bonding layer is a double-sided adhesive tape, and the thickness of the double-sided adhesive tape is 0.05-0.15 mm.
The liquid leakage detection patch provided by the present invention may further have the following features: further comprising: and the transfer patch is arranged on the side of the bonding layer away from the conductive metal layer.
The liquid leakage detection patch provided by the present invention may further have the following features: wherein, the transfer patch is a thin sheet made of PET or PVC material, and the thickness of the thin sheet is 0.05-0.15 mm.
The liquid leakage detection patch provided by the present invention may further have the following features: wherein, two electrode slices are centrosymmetric.
The liquid leakage detection patch provided by the present invention may further have the following features: wherein the width of the gap is 0.5-5 mm.
The liquid leakage detection patch provided by the present invention may further have the following features: wherein, the branch conducting bar and the corresponding main conducting bar are integrally formed.
< scheme two >
The present invention also provides a liquid leakage detection device having the features including: at least one liquid leakage detection patch, wherein the liquid leakage detection patch is the liquid leakage detection patch of the scheme I.
Action and Effect of the invention
According to the liquid leakage detection patch and the liquid leakage detection device comprising the same, because the liquid leakage detection patch comprises two electrode plates which are independent from each other and are arranged correspondingly, wherein each electrode plate comprises a main guide bar and a plurality of branch guide bars which are respectively connected with the main guide bar, all the branch guide bars in one electrode plate are sequentially arranged at intervals along the length direction of the corresponding main guide bar and respectively extend towards the direction of the other main guide bar, all the branch guide bars in one electrode plate and all the branch guide bars in the other electrode plate are sequentially and alternately arranged, gaps are respectively arranged between every two adjacent branch guide bars and between the branch guide bars in one electrode plate and the main guide bar in the other electrode plate, and the electrode plate is composed of a conductive metal layer and an adhesive layer compounded on one side surface of the conductive metal layer, the liquid leakage detection patch is applicable to the liquid leakage detection of the storage battery which is installed in place or is being installed, the installation is convenient and quick, and the liquid leakage detection paste is only required to be pasted on the outer surface of the battery box body at the liquid leakage detection position; moreover, the structure is simple, the processing is convenient, and the cost is lower.
Drawings
FIG. 1 is a schematic perspective view of a liquid leakage detection patch according to an embodiment of the present invention;
FIG. 2 is an exploded view of the liquid leak detection patch according to an embodiment of the present invention;
FIG. 3 is a schematic view of a use state of the liquid leakage detection patch in the embodiment of the present invention;
FIG. 4 is a schematic diagram of a prior art fluid leak detection zone; and
fig. 5 is a schematic structural diagram of a liquid leakage detection grid in the prior art.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the present invention easy to understand, the following embodiments specifically describe the liquid leakage detection patch and the liquid leakage detection device in the present invention with reference to the accompanying drawings.
< example >
FIG. 1 is a schematic perspective view of a liquid leakage detection patch according to an embodiment of the present invention; fig. 2 is an exploded mounting diagram of the liquid leakage detection patch in the embodiment of the present invention.
As shown in fig. 1 and 2, in the present embodiment, the liquid leakage detecting patch 100 includes two electrode sheets 10 and a transfer patch 20.
As shown in fig. 1 and 2, the two electrode sheets 10 are independent of each other and arranged in central symmetry. Each electrode sheet 10 includes a main conductive strip 11 and six branch conductive strips 12 integrally formed with the main conductive strip, respectively.
All the branch bars 12 in one electrode sheet 10 are arranged at equal intervals in sequence along the length direction of the corresponding main bar 11, and extend toward the direction of the other main bar 11, respectively. In the present embodiment, the branch bars 12 extend in a direction perpendicular to the corresponding main bar 11.
All the branch bars 12 in one electrode sheet 10 and all the branch bars 12 in the other electrode sheet 10 are sequentially and alternately arranged, and a first gap 120 is provided between two adjacent branch bars 12, and a second gap 110 is provided between the branch bars 12 in one electrode sheet 10 and the main bar 11 in the other electrode sheet 10. In the present embodiment, the width D1 of the first gap and the width D2 of the second gap are 0.5-5 mm.
Each electrode sheet 10 has two stem portions 111, 121, the stem portion 111 being provided at one end portion of the main lead 111, and the stem portion 121 being provided at a free end portion of the branch lead 12 located at the other end portion of the main lead 111.
As shown in fig. 2, each electrode sheet 10 is composed of a conductive metal layer 101 and an adhesive layer 102 as viewed in the thickness direction.
The conductive metal layer 101 is made of flexible aluminum foil or copper foil, and the thicknesses of the aluminum foil and the copper foil are both 0.05-0.15 mm. In this example, the thickness of the aluminum foil and the copper foil was 0.1 mm.
One side (i.e., the upper side as shown in fig. 2) of the adhesive layer 102 is laminated on the back (i.e., the lower side as shown in fig. 2) of the conductive metal layer 101, and the other side (i.e., the lower side as shown in fig. 2) of the adhesive layer 102 is used for bonding with the outer surface of the battery case in the secondary battery. In this embodiment, the adhesive layer 102 is a double-sided adhesive tape with a thickness of 0.05-0.15 mm.
In the present embodiment, the conductive electrode sheet 10 is made of aluminum foil with back adhesive directly purchased from the market through stamping.
As shown in fig. 1 and 2, a transfer patch 20 is disposed on the side of the adhesive layer 102 away from the conductive metal layer 10 (i.e., the lower side as shown in fig. 2) for fixing the two electrode tabs 10 and transfer-adhering the two electrode tabs 10 to the battery case. The transfer patch 20 is a sheet made of PET or PVC material having a thickness of 0.05-0.15mm, in this embodiment 0.1 mm.
Fig. 3 is a schematic view of a use state of the liquid leakage detection patch in the embodiment of the present invention.
The application process of the liquid leakage detection patch 100 in this embodiment is as follows:
the transfer patch 20 is torn from one end of the leakage detecting patch 100, and then the two electrode tabs 10 are slowly transferred and attached to the outer surface of the battery case 200 in the secondary battery at the leakage detecting position 201, as shown in fig. 3.
The dry contact points 111 and 121 of the two electrode sheets 10 are connected to a resistance detection and determination unit by two wires, respectively, so that the liquid leakage detection patch 100 and the resistance detection and determination unit constitute a liquid leakage detection device.
When there is no electrolyte leakage, the two electrode tabs 10 are not in contact with each other, and are in an off state.
When the electrolyte in the battery module leaks, the leaked electrolyte flows into the first gap 120 and the second gap 110 through the gap of the battery case 200, and the oxide layer on the surface of the conductive metal layer 101 is corroded, so that the two electrode plates 10 are connected to form a short circuit. The resistance detection judging unit judges whether there is a leakage problem by detecting the resistance between the two electrode sheets 10.
Effects and effects of the embodiments
According to the liquid leakage detection patch and the liquid leakage detection device comprising the same of the present embodiment, since the liquid leakage detection patch has two electrode sheets which are independent from each other and are disposed correspondingly, wherein each electrode sheet comprises a main guide bar and a plurality of branch guide bars connected to the main guide bar, all the branch guide bars in one electrode sheet are sequentially arranged at intervals along the length direction of the corresponding main guide bar and extend toward the other main guide bar, all the branch guide bars in one electrode sheet and all the branch guide bars in the other electrode sheet are sequentially and alternately arranged, gaps are provided between two adjacent branch guide bars and between the branch guide bar in one electrode sheet and the main guide bar in the other electrode sheet, and the electrode sheet is composed of a conductive metal layer and an adhesive layer compounded on one side surface of the conductive metal layer, the present embodiment is applicable to liquid leakage detection of a battery which is already mounted in place or is being mounted, the installation is convenient and quick, and the liquid leakage detection paste is only required to be pasted on the outer surface of the battery box body at the liquid leakage detection position; moreover, the structure is simple, the processing is convenient, and the cost is lower.
Furthermore, the width of the gap is 5-10mm, so that the accuracy of liquid leakage detection is further improved.
In addition, because each electrode plate is provided with a dry connecting part, the electrode plates are conveniently connected with the resistance detection judging unit in the detection device by adopting a lead.
In addition, the conductive metal layer is an aluminum foil or a copper foil, and the bonding layer is a double-sided adhesive tape, so that the conductive metal layer is easy to purchase from the market, the manufacturing cost is low, and the conductive metal layer is easy to realize large-scale industrial application.
In addition, because the transfer patch is arranged on the side face, far away from the conductive metal layer, of the bonding layer, the two electrode plates can be easily fixed, and the two electrode plates can be conveniently transferred and adhered to the battery box body at the same time.
In addition, because two electrode slices set up for central symmetry, easily make, further reduced the processing degree of difficulty.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (10)
1. The utility model provides a liquid leakage detects subsides, is located the surface of weeping detection position department by the battery box that sets up in the battery, its characterized in that includes:
two mutually independent and correspondingly arranged electrode plates,
wherein each electrode plate comprises a main guide bar and a plurality of branch guide bars respectively connected with the main guide bar,
all the branch conducting bars in one electrode plate are sequentially arranged at intervals along the length direction of the corresponding main conducting bar and extend towards the direction of the other main conducting bar respectively,
all the branch conducting bars in one electrode plate and all the branch conducting bars in the other electrode plate are sequentially and alternately arranged,
gaps are arranged between two adjacent branch guide bars and between the branch guide bar in one electrode plate and the main guide bar in the other electrode plate,
the electrode plate is composed of a conductive metal layer and an adhesive layer compounded on one side surface of the conductive metal layer.
2. The liquid leakage detection patch according to claim 1, wherein:
wherein each of the electrode sheets has at least one stem portion,
the trunk is provided at one end of the main bar or at a free end of the branch bar at an end of the main bar.
3. The liquid leakage detection patch according to claim 1, wherein:
wherein the conductive metal layer is an aluminum foil or a copper foil,
the thickness of the aluminum foil and the copper foil is 0.05-0.15 mm.
4. The liquid leakage detection patch according to claim 1, wherein:
wherein the bonding layer is a double-sided adhesive tape,
the thickness of the double-sided adhesive tape is 0.05-0.15 mm.
5. The liquid leakage detection patch according to claim 1, further comprising:
and the transfer patch is arranged on the side of the bonding layer away from the conductive metal layer.
6. The liquid leakage detection patch according to claim 5, wherein:
wherein the transfer patch is a thin sheet made of PET or PVC material,
the thickness of the thin slice is 0.05-0.15 mm.
7. The liquid leakage detection patch according to claim 1, wherein:
wherein, two electrode slices are centrosymmetric.
8. The liquid leakage detection patch according to claim 1, wherein:
wherein the width of the gap is 5-10 mm.
9. The liquid leakage detection patch according to claim 1, wherein:
the branch guide bars and the corresponding main guide bars are integrally formed.
10. A liquid leakage detection device, comprising:
at least one liquid leakage detection patch is arranged on the base,
wherein the liquid leakage detection patch is the liquid leakage detection patch according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011301699.7A CN112345172A (en) | 2020-11-19 | 2020-11-19 | Liquid leakage detection paste and liquid leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011301699.7A CN112345172A (en) | 2020-11-19 | 2020-11-19 | Liquid leakage detection paste and liquid leakage detection device |
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| Publication Number | Publication Date |
|---|---|
| CN112345172A true CN112345172A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011301699.7A Pending CN112345172A (en) | 2020-11-19 | 2020-11-19 | Liquid leakage detection paste and liquid leakage detection device |
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| CN (1) | CN112345172A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390590A (en) * | 2021-05-26 | 2021-09-14 | 天能电池集团股份有限公司 | Device and method for detecting sealing performance of joint of storage battery groove body and groove cover |
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| CN213481646U (en) * | 2020-11-19 | 2021-06-18 | 江苏为恒智能科技有限公司 | Liquid leakage detection paste and liquid leakage detection device |
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2020
- 2020-11-19 CN CN202011301699.7A patent/CN112345172A/en active Pending
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| US6337559B1 (en) * | 1999-09-10 | 2002-01-08 | Sony Corporation | Battery pack with leakage detection and current interrupting means |
| JP2007273353A (en) * | 2006-03-31 | 2007-10-18 | Toyota Motor Corp | Battery structure |
| KR20120131383A (en) * | 2011-05-25 | 2012-12-05 | (주)유민에쓰티 | Plat type leakage detection apparatus |
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| CN113390590A (en) * | 2021-05-26 | 2021-09-14 | 天能电池集团股份有限公司 | Device and method for detecting sealing performance of joint of storage battery groove body and groove cover |
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