CN211507825U - Battery capable of detecting internal temperature - Google Patents
Battery capable of detecting internal temperature Download PDFInfo
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- CN211507825U CN211507825U CN202020069227.2U CN202020069227U CN211507825U CN 211507825 U CN211507825 U CN 211507825U CN 202020069227 U CN202020069227 U CN 202020069227U CN 211507825 U CN211507825 U CN 211507825U
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- battery
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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 utility model discloses a battery of detectable inside temperature, including apron, casing, core package and a plurality of temperature sensing line, the core package sets up the intracavity that holds that forms after apron and casing assembly, has seted up at least one through-hole on the apron, is provided with sealed nail in the through-hole, and sealed nail sets up the through wires hole that link up along its length direction, and the one end of a plurality of temperature sensing lines is passed the through wires hole back dispersion and is set up on the core package. The utility model discloses a battery of detectable inside temperature makes a plurality of temperature-sensing lines can stretch into a plurality of positions in the battery through set up the through-hole on the apron and set up the sealed nail that has the through wires hole on the through-hole, carries out accurate temperature measurement to battery inside. Because only offered the through-hole more on conventional battery apron, only need to change slightly on the manufacturing process of conventional battery and can accomplish the utility model discloses a production of the battery of detectable inside temperature has lower cost of manufacture.
Description
Technical Field
The utility model relates to a battery manufacturing technology field especially relates to a battery of detectable inside temperature.
Background
Lithium batteries are widely used in the field of energy storage and power batteries due to their high specific energy and multiple recycling. The temperature rise in the lithium battery can increase the side reaction in the electrolyte, causes the battery life to reduce, and the gasification decomposition of electrolyte has also increased the risk that the battery opened the valve inefficacy. In addition, the separator may melt at an excessively high temperature to cause an internal short circuit, thereby causing serious safety accidents such as fire, explosion, etc. Therefore, the temperature detection in the lithium battery is important for exerting the performance of the lithium battery and improving the safety of the lithium battery. However, since lithium batteries on the market are all sealed systems, the temperature distribution inside the batteries is difficult to detect.
The patent with publication number CN207559000U discloses a lithium battery capable of detecting internal temperature and pressure, which comprises a battery cell, a base, a cap and a cylindrical shell, wherein the base is positioned at the lower end of the shell and is provided with a PCB board, and a temperature sensor arranged on the PCB board is in contact with the battery cell; the temperature sensor is connected with a data transmission line, and the through hole on the base extends out of the shell. In the structure disclosed in the above patent document, the temperature sensor is disposed below the battery cell, and temperature distribution at other positions of the battery cell cannot be detected; and can only detect the temperature of a single roll core, but can not detect the temperature of a double-roll core or a multi-roll core contact interface.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery of detectable internal temperature can detect the temperature of the inside many places position of battery accurately.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a battery of detectable inside temperature, includes apron, casing, core package and a plurality of temperature sensing line, the core package sets up the apron with the intracavity that holds that the casing assembly back formed, at least one through-hole has been seted up on the apron, be provided with sealed nail in the through-hole, sealed nail sets up the through wires hole of lining up along its length direction, and is a plurality of the one end of temperature sensing line is passed dispersion setting is in behind the through wires hole on the core package.
As a preferred scheme of the utility model, the sealing nail is a screw, the head of the sealing nail is arranged at the inner side of the cover plate, the outer side of the cover plate is provided with a sealing nut, and the sealing nail and the sealing nut are locked with each other;
or the head of the sealing nail is arranged on the outer side of the cover plate, the inner side of the cover plate is provided with a sealing nut, and the sealing nail and the sealing nut are locked with each other.
As a preferred aspect of the present invention, the core pack includes at least one winding core.
As an optimized scheme of the utility model, the temperature sensing line is located the inside one end of battery and is provided with temperature element, and is a plurality of temperature element dispersion sets up the surface and the inside of core package.
As an optimized proposal of the utility model, the temperature measuring element is wrapped with gummed paper.
As an optimized proposal of the utility model, the part of the temperature sensing line passing through the threading hole is wrapped by the thread seal tape.
As an optimized scheme of the utility model, sealed nail with the junction of apron and wear to be equipped with the thalposis line all be provided with sealed glue on the through wires hole.
As an optimized proposal of the utility model, the cover plate is also provided with a liquid injection hole.
As an optimized scheme of the utility model, the apron with casing laser welding.
As an optimized scheme of the utility model, the quantity of through-hole is two and about the central symmetry setting of apron.
The utility model has the advantages that:
the utility model discloses a battery of detectable inside temperature makes a plurality of temperature-sensing lines can stretch into a plurality of positions in the battery through set up the through-hole on the apron and set up the sealed nail that has the through wires hole on the through-hole, carries out accurate temperature measurement to battery inside. Because only offered the through-hole more on conventional battery apron, only need to change slightly on the manufacturing process of conventional battery and can accomplish the utility model discloses a production of the battery of detectable inside temperature has lower cost of manufacture.
Drawings
Fig. 1 is a schematic perspective view of a battery capable of detecting an internal temperature according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a cover plate according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a seal nail according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a setting manner of the temperature sensing line according to the embodiment of the present invention.
In the figure:
1. a cover plate; 11. sealing the nail; 12. a seal nut; 13. a liquid injection hole; 2. a housing; 3. a core package; 4. a temperature sensing line; 41. a temperature measuring element.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in fig. 1 and 4, the battery capable of detecting the internal temperature in the embodiment includes a cover plate 1, a casing 2, a core package 3 and a plurality of temperature sensing lines 4, the core package 3 is arranged in a containing cavity formed after the cover plate 1 and the casing 2 are assembled, at least one through hole is formed in the cover plate 1, a sealing nail 11 is arranged in the through hole, a penetrating through hole is formed in the sealing nail 11 along the length direction of the sealing nail, and one end of each of the temperature sensing lines 4 is dispersedly arranged on the core package 3 after penetrating through the through hole.
The battery of the detectable internal temperature of this embodiment makes a plurality of temperature-sensing lines 4 can stretch into a plurality of positions inside the battery through seting up the through-hole on apron 1 and set up sealed nail 11 that has the through wires hole on the through-hole, carries out accurate temperature measurement to battery inside. Because only offered the through-hole more on the apron 1 of conventional battery, only need to change slightly on the manufacturing process of conventional battery and can accomplish the utility model discloses a production of the battery of detectable inside temperature has lower cost of manufacture.
As shown in fig. 2 and 3, preferably, the sealing nail 11 is a screw, the head of the sealing nail 11 is disposed on the inner side of the cover plate 1, the outer side of the cover plate 1 is disposed with a sealing nut 12, and the sealing nail 11 and the sealing nut 12 are locked with each other. In this embodiment, the sealing nut 12 is used in conjunction with the sealing nail 11, so that the sealing nail 11 can be firmly fixed on the cover plate 1, and is not easy to loosen or tilt.
In other embodiments, the head of the sealing nail 11 is arranged on the outer side of the cover plate 1, the inner side of the cover plate 1 is provided with the sealing nut 12, and the sealing nail 11 and the sealing nut 12 are locked with each other.
Preferably, the sealing nail 11 is made of a plastic material, such as a polypropylene material, so that a threading hole is easily formed in the sealing nail, and compared with a metal material, the sealing nail is smaller in weight and beneficial to reducing the overall weight of the battery.
Specifically, one end of the temperature sensing wire 4 located inside the battery is provided with a temperature measuring element 41, and the temperature measuring elements 41 are dispersedly arranged on the surface and inside the core package 3.
Preferably, the core package 3 comprises at least one winding core. When the core pack 3 includes two or more winding cores, the ends of the temperature sensing wires 4 can be disposed between the winding cores and on the surface of the core pack 3, thereby more comprehensively representing the temperature condition inside the battery.
Furthermore, the temperature measuring element 41 is wrapped with adhesive paper. Although the volume of the temperature measuring element 41 is small, the core package 3 may be damaged when the temperature measuring element 41 is extruded, and the core package 3 is coated with adhesive paper to provide an additional protective layer for the core package 3, thereby effectively preventing the core package 3 from being damaged.
Preferably, the part of the temperature sensing thread 4 passing through the thread hole is wrapped by the raw material tape. Because many temperature sensing lines 4 have gathered in the narrow and small space in the through wires hole, squeeze, rub each other between each temperature sensing line 4 or between temperature sensing line 4 and the pore wall of through wires hole, cause the impaired normal function that leads to it of unable better playing of temperature sensing line 4 top layer easily, raw material area can provide better guard action, prevents that temperature sensing line 4 from taking place to damage.
Preferably, sealed nail 11 and apron 1 junction and wear to be equipped with on the through wires hole of temperature sensing line 4 and all be provided with sealed glue, still can have the gap that makes the inside and external intercommunication of battery on sealed nail 11 and apron 1 junction and the through wires hole of having carried out the threading, these gaps can make the unable normal work of battery, consequently adopt sealed glue to fill up these gaps in order to realize the leakproofness of battery.
Preferably, apron 1 and 2 laser welding of casing, the laser welding's is efficient, and the welding seam is of high quality.
Preferably, the number of through holes is two and is symmetrically arranged about the center of the cap plate 1. As shown in fig. 1 and 2, when the size of the battery is large, if only one through hole is formed in the cover plate 1 and one sealing nail 11 is arranged, the internal volume of the battery is large, the number of temperature sensing wires 4 to be arranged is also large, and a large number of temperature sensing wires 4 are gathered in the threading hole, so that a large-size threading hole is needed, the size of the sealing nail 11 needs to be correspondingly increased if the aperture of the threading hole is large, and the width space of the cover plate 1 is very limited, so that the sealing nail 11 with an excessively large size cannot be installed. In addition, the single sealing nail 11 also causes the length of the temperature-sensitive wire 4 protruding into the battery to be excessively long, and thus, it is inconvenient to arrange the temperature-sensitive wire 4.
As shown in fig. 4, the battery of this embodiment has a smaller size of the case 2, so only one sealing nail 11 and one sealing nut 12 are provided, the number of the temperature sensing wires 4 is five, the temperature sensing wires are dispersedly disposed at the edge, the middle part and the position close to the edge of the core pack 3, the temperature measuring points are far apart, the temperature measurement is performed at multiple positions inside the battery, and the temperature characteristics inside the battery are detected more comprehensively.
Preferably, the cover plate 1 is further provided with a liquid injection hole 13. In some embodiments, the battery capable of detecting internal temperature is manufactured by the following steps: firstly, punching a hole in a cover plate 1 to form a through hole for installing a sealing nail 11, and punching a hole in the sealing nail 11 to form a threading hole;
then, enabling a plurality of temperature-sensitive lines 4 to penetrate through the threading holes of the sealing nails 11, wrapping the temperature-sensitive lines 4 in the threading holes by using thread tapes, and screwing the sealing nuts 12 on the sealing nails 11 to fix the sealing nails 11 on the cover plate 1;
fixing the temperature measuring element 41 of the temperature sensing wire 4 at the position to be measured of the core package 3, wherein the temperature measuring element can be fixed by adopting insulating gummed paper, and one end of the temperature sensing wire 4, which is positioned outside the battery, is connected to detection and analysis equipment;
then, the core package 3 is arranged in the shell 2, and the cover plate 1 is welded on the shell 2 by laser;
coating the position where the sealing nail 11 is contacted with the cover plate 1 and the threading hole with sealant, and carrying out an air tightness test to ensure that the battery is sealed;
and finally, carrying out short circuit test, liquid injection and formation on the battery, and carrying out test work.
As a preferred embodiment of the present invention, in the description of the present specification, reference to the description of the terms "preferred", "further" or the like means that a particular feature, structure, material, or characteristic described in connection with the example or illustration is included in at least one example or illustration of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only used to illustrate the detailed embodiments of the present invention, and the present invention is not limited to the above detailed embodiments, i.e. the present invention must not be implemented depending on the detailed embodiments. It should be clear to those skilled in the art that any improvement of the present invention, to the equivalent replacement of each raw material of the present invention, the addition of auxiliary components, the selection of specific modes, etc., all fall within the protection scope and disclosure scope of the present invention.
Claims (10)
1. The utility model provides a battery of detectable inside temperature, its characterized in that, includes apron, casing, core package and a plurality of temperature sensing line, the core package sets up the apron with the intracavity that holds that the casing assembly back formed, at least one through-hole has been seted up on the apron, be provided with sealed nail in the through-hole, sealed nail is seted up the through wires hole of lining up along its length direction, and is a plurality of the one end of temperature sensing line is passed dispersion setting behind the through wires hole is in on the core package.
2. The battery capable of detecting internal temperature according to claim 1, wherein the sealing nail is a screw, the head of the sealing nail is disposed on the inner side of the cover plate, the outer side of the cover plate is provided with a sealing nut, and the sealing nail and the sealing nut are locked with each other;
or the head of the sealing nail is arranged on the outer side of the cover plate, the inner side of the cover plate is provided with a sealing nut, and the sealing nail and the sealing nut are locked with each other.
3. The battery of claim 1, wherein the core package comprises at least one winding core.
4. The battery capable of detecting internal temperature as claimed in claim 3, wherein the temperature sensing wire is provided with temperature measuring elements at one end thereof located inside the battery, and a plurality of temperature measuring elements are dispersedly arranged on the surface and inside of the core pack.
5. The battery of claim 4, wherein the temperature measuring element is wrapped with adhesive paper.
6. The battery capable of detecting internal temperature as claimed in claim 1, wherein the portion of the temperature sensing wire passing through the threading hole is wrapped by a raw material tape.
7. The battery of claim 1, wherein a sealant is disposed at a connection between the sealing nail and the cover plate and the threading hole through which the temperature sensing wire is threaded.
8. The battery capable of detecting internal temperature according to claim 1, wherein the cover plate is further provided with a liquid injection hole.
9. The battery of claim 1, wherein the cover plate is laser welded to the housing.
10. The battery capable of detecting internal temperature according to claim 1, wherein the number of the through holes is two and is symmetrically arranged with respect to the center of the cap plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069227.2U CN211507825U (en) | 2020-01-13 | 2020-01-13 | Battery capable of detecting internal temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069227.2U CN211507825U (en) | 2020-01-13 | 2020-01-13 | Battery capable of detecting internal temperature |
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| Publication Number | Publication Date |
|---|---|
| CN211507825U true CN211507825U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020069227.2U Active CN211507825U (en) | 2020-01-13 | 2020-01-13 | Battery capable of detecting internal temperature |
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| CN (1) | CN211507825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116315208A (en) * | 2023-05-25 | 2023-06-23 | 宁德时代新能源科技股份有限公司 | Detection module, battery cell, management system and method, battery and electricity utilization device |
| CN117053937A (en) * | 2023-10-12 | 2023-11-14 | 柔微智能科技(苏州)有限公司 | Temperature sensor, preparation method thereof and battery integrated with temperature sensor |
-
2020
- 2020-01-13 CN CN202020069227.2U patent/CN211507825U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116315208A (en) * | 2023-05-25 | 2023-06-23 | 宁德时代新能源科技股份有限公司 | Detection module, battery cell, management system and method, battery and electricity utilization device |
| CN117053937A (en) * | 2023-10-12 | 2023-11-14 | 柔微智能科技(苏州)有限公司 | Temperature sensor, preparation method thereof and battery integrated with temperature sensor |
| CN117053937B (en) * | 2023-10-12 | 2023-12-26 | 柔微智能科技(苏州)有限公司 | Temperature sensor, preparation method thereof and battery integrated with temperature sensor |
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