CN115173002A - Special-shaped flow guide column and battery cover for thermal battery - Google Patents
Special-shaped flow guide column and battery cover for thermal battery Download PDFInfo
- Publication number
- CN115173002A CN115173002A CN202210934233.3A CN202210934233A CN115173002A CN 115173002 A CN115173002 A CN 115173002A CN 202210934233 A CN202210934233 A CN 202210934233A CN 115173002 A CN115173002 A CN 115173002A
- Authority
- CN
- China
- Prior art keywords
- flow guide
- guide column
- battery
- circuit board
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 claims description 17
- 238000005245 sintering Methods 0.000 claims description 3
- 238000005476 soldering Methods 0.000 abstract description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 10
- 238000003466 welding Methods 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000012466 permeate Substances 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- KGWWEXORQXHJJQ-UHFFFAOYSA-N [Fe].[Co].[Ni] Chemical compound [Fe].[Co].[Ni] KGWWEXORQXHJJQ-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000005321 cobalt glass Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/562—Terminals characterised by the material
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/30—Deferred-action cells
- H01M6/36—Deferred-action cells containing electrolyte and made operational by physical means, e.g. thermal cells
-
- 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)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Primary Cells (AREA)
Abstract
The invention provides a special-shaped flow guide column and a battery cover for a thermal battery. When the flow guide column is welded with the metal connecting wire, tin soldering residues can be physically separated, the insulation deterioration and conduction between the flow guide column and the cover plate and between the flow guide columns are avoided, and the reliable work of a thermal battery is guaranteed; when the flexible circuit board is inserted on the flow guide columns, the flexible circuit board is in contact with the disc on the special-shaped flow guide column, the distance between the flexible circuit board and the battery cover is not less than 1mm, and during soldering, molten soldering tin permeates into the disc of the flow guide column through the holes of the flexible circuit board, so that short circuit among the flow guide columns can be avoided, and the reliable work of the thermal battery is facilitated; the position of the welding wire and the distance between the circuit board and the surface of the cover body can be fixed, so that the heat on the surface of the battery cover can not be directly transferred to the circuit board, and the performance of the circuit board can not be influenced; simple operation and low cost.
Description
Technical Field
The invention belongs to the technical field of initiating explosive devices and power supplies, and particularly relates to a flow guide column and a battery cover for a thermal battery, which are of special-shaped structures.
Background
The thermal battery comprises a battery cover, a cylindrical flow guide column, a cover plate, an ignition element, a heating element, a metal buckle, a pile drainage strip, a metal buckle, an electric performance output strip, a cover body outer side flow guide column, a cover plate, an ignition element and a heating element. At present, the shape of the flow guide column is more cylindrical, and the connection mode of the flow guide column and an electric system is that an insulated mounting wire is connected with a cylindrical tin soldering mode or a flexible circuit board is connected with the cylindrical tin soldering mode.
The existing flow guide column mainly has the following defects:
1. the diversion column and the cover plate are insulated by a glass ring (insulating material), and the width of the glass ring is 0.75-1.75 mm. The flow guide column is connected with the insulating mounting line through tin soldering, and in the tin soldering process, scaling powder residues in tin soldering can fall on the cover plate and the glass ring, so that the insulation between the flow guide column and the cover plate and between the flow guide columns is deteriorated or even conducted due to the fact that the residues are conductive, and the thermal battery generates electric noise or even loses efficacy when being subjected to a performance test.
2. When the flexible circuit board is connected with the flow guide columns, corresponding holes of the flexible circuit board are inserted into the flow guide columns, conductors in the flexible circuit board are connected and conducted with the flow guide columns and then fixed through soldering, the flexible circuit board is directly contacted with the surface of the battery cover, and molten soldering tin permeates into the battery cover and the glass ring through the holes of the flexible circuit board in the welding process, so that short circuit between the flow guide columns is caused, and the thermal battery generates electric noise and even fails.
3. When the flow guide column is welded with the insulated mounting line, the welding position cannot be fixed, and the insulated mounting line is possibly close to the surface of the cover body, so that the insulated mounting line is conducted with the cover body; when the guide post is connected with the flexible circuit board, because unable accurate fixed, the flexible circuit board direct contact lid surface or directly keep apart through multilayer mica, because the thermal battery effect in-process will produce the heat, apron surface temperature reaches about 150 ℃, causes the damage to the flexible circuit board easily.
Disclosure of Invention
Technical problem to be solved
The invention provides a special-shaped flow guide column and a battery cover for a thermal battery, which are used for solving the technical problems of ensuring the insulation resistance of a welding part of the thermal battery, fixing the position of a welding wire, reducing the influence of the heat of the surface of the cover plate on the welding point in the working process of the thermal battery and improving the working reliability.
(II) technical scheme
In order to solve the technical problem, the invention provides a special-shaped flow guide column for a thermal battery, wherein the main body of the flow guide column is of a cylindrical structure, and the top edge of the cylinder is provided with a circular ring structure.
Furthermore, the flow guide column is formed by machining an iron-nickel-cobalt glass sealing alloy wire.
Furthermore, the circular ring structure and the cylindrical structure are integrally processed.
In addition, the invention also provides a battery cover for the thermal battery, which is formed by sintering the flow guide column, the cover plate and the glass ring; wherein the diversion column adopts the diversion column.
Further, the flow guide post is inserted into the cover plate and insulated from the cover plate by the glass ring.
Furtherly, the water conservancy diversion post is located the inboard drainage strip connecting portion of apron and is cylindricly, and the ring on the water conservancy diversion post is located the apron outside.
Further, the distance between the circular ring and the cover plate is not less than 1mm.
Further, the outer diameter of the circular ring is larger than that of the glass ring.
(III) advantageous effects
The invention provides a special-shaped flow guide column and a battery cover for a thermal battery. The special-shaped guide post is inserted into the cover plate and is insulated from the cover plate through the glass ring.
The beneficial effects of the invention specifically comprise:
1. when the flow guide columns are welded with the metal connecting wires, tin soldering residues can be physically separated, and the insulation deterioration and conduction between the flow guide columns and the cover plate and between the flow guide columns are avoided, so that the reliable work of the thermal battery is guaranteed.
2. When the flexible circuit board is inserted on the flow guide columns, the flexible circuit board is in contact with the disc on the special-shaped flow guide column, the distance between the flexible circuit board and the battery cover is not less than 1mm, and during soldering, molten soldering tin permeates into the disc of the flow guide column through the holes of the flexible circuit board, so that short circuit among the flow guide columns can be avoided, and reliable work of the thermal battery is facilitated.
3. The position of the welding wire and the distance between the circuit board and the surface of the cover body can be fixed, so that the heat on the surface of the battery cover can not be directly transferred to the circuit board, and the performance of the circuit board can not be influenced.
4. Simple operation and low cost.
Drawings
FIG. 1 is a schematic structural view of a flow guide pillar for a thermal battery according to an embodiment of the present invention;
fig. 2a is a front view of a cell cover using a current guiding column for a thermal battery according to an embodiment of the present invention, and fig. 2b is a plan view of the cell cover.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The embodiment provides a special-shaped flow guide column for a thermal battery, and the structure of the special-shaped flow guide column is shown in figure 1. The special-shaped guide post is formed by machining an iron-nickel-cobalt glass seal alloy wire, the diameter of the special-shaped guide post is 1.5mm, the total length of the special-shaped guide post is about 9.5mm, a circular ring with the outer diameter of about 4mm is arranged at a position 3mm away from the edge of the top of the special-shaped guide post, and the circular ring is sleeved on the guide post and is integrally machined with the guide post.
The battery cover for installing the flow guiding column is formed by sintering a special-shaped flow guiding column 1, a cover plate 2 and a glass ring 3, and the structure of the battery cover is shown in figure 2. The outer diameter of the battery cover is 54mm, 4 diversion columns 1 are arranged on the battery cover, D and D are input ends, and +/-are output ends. The special-shaped guide post 1 is inserted into the cover plate 2 and insulated from the cover plate 2 by the glass ring 3. The drainage strip connecting part of the special-shaped flow guide column 1, which is positioned on the inner side of the cover plate 2, still keeps a cylinder shape, and the flow guide column is connected with the galvanic pile through the drainage strip. The circular ring on the special-shaped guide column 1 is positioned on the outer side of the cover plate 2, and the outer side of the special-shaped guide column is connected with a power utilization system through an insulated mounting wire or a flexible circuit board, so that the power supply function of the thermal battery is realized.
When the height of the special-shaped guide column 1 and the width of the glass ring 3 are changed, the distance between the ring and the top edge of the guide column and the diameter of the ring can be adjusted according to the connection height of the special-shaped guide column and the diameter of the glass ring 3, the distance between the ring and the cover plate 2 is kept to be not less than 1mm, and the outer diameter of the ring is ensured to be larger than that of the glass ring 3.
The thermal battery using the special-shaped flow guide columns has the advantages that after the thermal battery is connected with the flexible circuit board, the insulation resistance between each flow guide column and the cover plate and between each flow guide column is larger than 200M omega (DC 500V), the voltage-time curve is monitored after the thermal battery is activated, the curve is smooth and stable, and no noise exists.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.
Claims (8)
1. The special-shaped flow guide column for the thermal battery is characterized in that the main body of the flow guide column is of a cylindrical structure, and a circular ring structure is arranged on the edge of the top of the cylinder.
2. The flow post of claim 1 wherein the flow post is machined from fe-ni-co glass seal wire.
3. The column of claim 1, wherein the ring structure is integrally formed with the cylindrical structure.
4. The battery cover for the thermal battery is characterized in that the battery cover is formed by sintering a flow guide column, a cover plate and a glass ring; wherein the flow guide column is the flow guide column of any one of claims 1 to 3.
5. The battery cover of claim 4, wherein the flow guide post is inserted into the cover plate and insulated from the cover plate by a glass ring.
6. The battery cover of claim 4, wherein the flow guiding column has a cylindrical shape at the connecting portion of the flow guiding strip inside the cover plate, and the ring on the flow guiding column is located outside the cover plate.
7. The battery cover of claim 4, wherein the distance of the ring from the cover plate is not less than 1mm.
8. The battery cover of claim 4, wherein the outer diameter of the circular ring is greater than the outer diameter of the glass ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210934233.3A CN115173002B (en) | 2022-08-04 | 2022-08-04 | Special-shaped guide column and battery cover for thermal battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210934233.3A CN115173002B (en) | 2022-08-04 | 2022-08-04 | Special-shaped guide column and battery cover for thermal battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115173002A true CN115173002A (en) | 2022-10-11 |
| CN115173002B CN115173002B (en) | 2024-05-14 |
Family
ID=83478454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210934233.3A Active CN115173002B (en) | 2022-08-04 | 2022-08-04 | Special-shaped guide column and battery cover for thermal battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115173002B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4315973A1 (en) * | 1993-05-08 | 1994-11-10 | Rustem Dr Osmanow | Short-pulse multigas laser |
| JPH0877999A (en) * | 1994-08-31 | 1996-03-22 | Japan Storage Battery Co Ltd | Battery |
| JP2001084991A (en) * | 2000-08-25 | 2001-03-30 | Japan Storage Battery Co Ltd | Battery |
| JP2013093287A (en) * | 2011-10-27 | 2013-05-16 | Hitachi Vehicle Energy Ltd | Unit cell and battery pack |
| CN207664146U (en) * | 2018-01-11 | 2018-07-27 | 北方特种能源集团有限公司西安庆华公司 | A kind of insulation system of minor diameter thermal cell |
| CN108598517A (en) * | 2018-01-11 | 2018-09-28 | 北方特种能源集团有限公司西安庆华公司 | A kind of general pile of thermal cell ties up mould |
| KR20190121622A (en) * | 2018-04-18 | 2019-10-28 | (주)케이엔제이브레이즈 | Lithium Battery |
| CN211507689U (en) * | 2019-12-19 | 2020-09-15 | 中国电子科技集团公司第十八研究所 | Thermal battery cover assembly and thermal battery comprising same |
| CN112186302A (en) * | 2020-10-12 | 2021-01-05 | 盐城国投中科新能源科技有限公司 | Liquid cooling plate of battery system |
-
2022
- 2022-08-04 CN CN202210934233.3A patent/CN115173002B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4315973A1 (en) * | 1993-05-08 | 1994-11-10 | Rustem Dr Osmanow | Short-pulse multigas laser |
| JPH0877999A (en) * | 1994-08-31 | 1996-03-22 | Japan Storage Battery Co Ltd | Battery |
| JP2001084991A (en) * | 2000-08-25 | 2001-03-30 | Japan Storage Battery Co Ltd | Battery |
| JP2013093287A (en) * | 2011-10-27 | 2013-05-16 | Hitachi Vehicle Energy Ltd | Unit cell and battery pack |
| CN207664146U (en) * | 2018-01-11 | 2018-07-27 | 北方特种能源集团有限公司西安庆华公司 | A kind of insulation system of minor diameter thermal cell |
| CN108598517A (en) * | 2018-01-11 | 2018-09-28 | 北方特种能源集团有限公司西安庆华公司 | A kind of general pile of thermal cell ties up mould |
| KR20190121622A (en) * | 2018-04-18 | 2019-10-28 | (주)케이엔제이브레이즈 | Lithium Battery |
| CN211507689U (en) * | 2019-12-19 | 2020-09-15 | 中国电子科技集团公司第十八研究所 | Thermal battery cover assembly and thermal battery comprising same |
| CN112186302A (en) * | 2020-10-12 | 2021-01-05 | 盐城国投中科新能源科技有限公司 | Liquid cooling plate of battery system |
Non-Patent Citations (2)
| Title |
|---|
| LI WEIYU ET AL.: "Stability-Guided Strategies to Mitigate Dendritic Growth in Lithium-Metal Batteries", 《JOURNAL OF THE ELECTROCHEMICAL SOCIETY》, vol. 169, no. 6, 1 June 2022 (2022-06-01), pages 1 - 12 * |
| 侯虹, 张春晓: "热电池可靠性的设计和评估", 航空兵器, no. 02, 28 February 2001 (2001-02-28), pages 22 - 25 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115173002B (en) | 2024-05-14 |
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