CN213878202U - Cylindrical battery cell external and central cooling structure - Google Patents
Cylindrical battery cell external and central cooling structure Download PDFInfo
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- CN213878202U CN213878202U CN202022993507.5U CN202022993507U CN213878202U CN 213878202 U CN213878202 U CN 213878202U CN 202022993507 U CN202022993507 U CN 202022993507U CN 213878202 U CN213878202 U CN 213878202U
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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
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Abstract
The utility model provides a cylinder electricity core outside and central cooling structure belongs to new energy automobile battery system technical field, including side cooling tube, electric core cooling tube and cooling plate, the side cooling tube has two and parallel of each other, and electric core cooling tube installs perpendicularly between two side cooling tubes, and the cooling plate is installed between two side cooling tubes, and there is the through-hole that the level runs through in the center of electric core, and electric core cooling tube passes the through-hole, and electric core fixes on the cooling plate. The utility model discloses a to electric core center and outside simultaneous cooling, improved the radiating power of thermal management, reduced electric core center and outside difference in temperature, reduced the possibility that takes place thermal runaway.
Description
Technical Field
The utility model belongs to the technical field of new energy automobile battery system, a cylinder electricity core outside and center cooling structure are related to.
Background
At present, power batteries mainly comprise square hard shells, soft package battery cores, cylindrical battery cores and the like, the working principles of the three power lithium ion batteries are not greatly different, the difference lies in that the soft package lithium batteries adopt aluminum plastic films as packaging shells, and the cylinders and the square batteries mainly adopt metal materials as the shells. The cylindrical battery cell has many advantages, such as excellent cycle performance, rapid charge and discharge, large output power, mature production process, high product yield and the like. At present, the cooling of the cylindrical battery core mainly adopts a cooling mode outside the battery core, the process technology of the cooling mode is mature, for the cylindrical battery core with smaller size such as 18650, the cooling of the outer surface of the battery core can meet the heat dissipation requirement, but when the size of the battery core is larger, the heat at the center of the battery core can not be well dissipated when only the outer surface of the battery core is cooled, the heat dissipation at the center of the battery core is poorer than the external heat dissipation condition, along with the increase of energy density, the size of the module is gradually increased, meanwhile, the size of the battery core is gradually increased, for the cylindrical battery core, the larger the size of the battery core is, the larger the temperature difference between the center of the battery core and the outside is, when the temperature difference between the inside and the outside of the battery core is too high, after long-time charging and discharging circulation, the consistency between the inside and the outside of the battery core can be reduced, and the cycle service life of the battery is further reduced. In order to reduce the temperature of the center position of the battery cell and the temperature difference between the inside and the outside of the battery cell, a structural form for simultaneously cooling the center position and the outside of the battery cell is provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is that cylinder electricity core is outside and central cooling structure belongs to new energy automobile battery system technical field, through cooling off simultaneously to electricity core center and outside, has improved the heat dissipation power of thermal management, has reduced the difference in temperature of electricity core center and outside, has reduced the possibility that takes place the thermal runaway.
In order to solve the technical problem, the utility model discloses a technical scheme is: outside and central cooling structure of cylinder electricity core belongs to new energy automobile battery system technical field, including side cooling tube, electric core cooling tube and cooling plate, the side cooling tube has two and is parallel to each other, and electric core cooling tube installs perpendicularly between two side cooling tubes, and the cooling plate is installed between two side cooling tubes, and there is the through-hole that the level runs through in the center of electric core, and electric core cooling tube passes the through-hole, and electric core fixes on the cooling plate.
Further, the shape of the cooling plate is serpentine.
Further, still include the heat-conducting glue, the heat-conducting glue is filled between liquid cooling board and electric core.
Further, still include the sealing washer, the surface at the junction of electricity core cooling tube and side cooling tube is installed to the sealing washer.
Furthermore, the side cooling pipe comprises an upper cooling pipe, a first connecting pipe and a lower cooling pipe, the upper cooling pipe and the lower cooling pipe are arranged in parallel, and the first connecting pipe is vertically arranged between the upper cooling pipe and the lower cooling pipe.
Furthermore, the device also comprises a second connecting pipe, and the second connecting pipe is vertically arranged between the two first connecting pipes.
Furthermore, the middle of the cooling plate is provided with a bulge, the lower end of the bulge is provided with a hollow area, and the second connecting pipe penetrates through the hollow area.
Furthermore, the cooling device also comprises a spray header, and the spray header is arranged on the side cooling pipe and the battery core cooling pipe.
Compared with the prior art, the utility model has the advantages and positive effect as follows:
1. the utility model discloses a to electric core center and outside simultaneous cooling, improved the radiating power of thermal management, reduced electric core center and outside difference in temperature, reduced the possibility that takes place thermal runaway.
2. The utility model discloses a side cooling tube and electric core cooling tube can dispel the heat to electric core inside, and the cooling plate can dispel the heat to electric core outside, and two heat dissipation pipeline separately control adjust respective coolant flow respectively according to real-time temperature, through the control flow and then control the difference in temperature between each electric core and the difference in temperature between the inside and surface of same electric core.
3. The utility model discloses a shape of cooling plate is snakelike, and the area of contact of electricity core and cooling plate is bigger, and is fixed more firm, and the radiating effect is better.
4. The utility model discloses a heat-conducting glue is filled between liquid cooling board and electric core, has reduced thermal contact resistance, and the heat conduction effect is better.
5. The utility model discloses a surface at the junction of electricity core cooling tube and side cooling tube is installed to the sealing washer, has prevented that sealed coolant liquid that does not lead to well from leaking.
6. The utility model discloses a shower head is installed on side cooling tube and electric core cooling tube, and when the temperature was high very much, the shower head can be opened, sprays the cooling liquid and forms the cooling on electric core to play the effect of restraining thermal runaway.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic diagram of the external and central cooling structure of the cylindrical cell of the present invention;
fig. 2 is a schematic diagram of the cooling of the outer surface of the cell of the cylindrical cell external and central cooling structure of the present invention;
fig. 3 is the electric core center cooling schematic diagram of the cylinder electric core outside and center cooling structure of the utility model.
Reference numerals:
1. a side cooling tube; 2. a battery core cooling pipe; 3. a cooling plate; 4. an electric core; 5. heat conducting glue; 6. a seal ring; 7. a second connecting pipe; 11. an upper cooling pipe; 12. a first connecting pipe; 13. a lower cooling tube; 31. a protrusion; 32. a hollow region; 41. and a through hole.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in FIGS. 1 to 3, the present invention relates to a cylindrical cell external and central cooling structure, which belongs to the technical field of new energy automobile battery systems, and comprises two side cooling pipes 1, two cell cooling pipes 2 and a cooling plate 3, wherein the two side cooling pipes 1 are parallel to each other, the cell cooling pipe 2 is vertically installed between the two side cooling pipes 1, the cooling plate 3 is installed between the two side cooling pipes 1, the center of the cell 4 is provided with a through hole 41 horizontally penetrating, the weight of the system is reduced compared with that of a solid cell 4, the cell cooling pipe 2 passes through the through hole 41, the cell 4 is fixed on the cooling plate 3, the side cooling pipes 1 and the cell cooling pipe 2 can radiate heat inside the cell 4, the cooling plate 3 can radiate heat outside the cell 4, and the two radiating pipelines are separately controlled, the flow rates of the respective cooling liquids are respectively adjusted according to the real-time temperatures, and the temperature difference between the battery cells 4 and the temperature difference between the inner part and the outer surface of the same battery cell 4 are further controlled by controlling the flow rates.
Preferably, the shape of the cooling plate 3 is serpentine, the contact area between the battery cell 4 and the cooling plate 3 is larger, the fixation is firmer, and the heat dissipation effect is better.
Preferably, the heat-conducting glue 5 is filled between the liquid cooling plate and the battery core 4, so that the contact thermal resistance is reduced, and the heat-conducting effect is better.
Preferably, a sealing ring 6 is installed on the outer surface of the joint of the cell cooling pipe 2 and the side cooling pipe 1, so as to prevent leakage of the cooling liquid caused by poor sealing.
Preferably, the side cooling pipe 1 includes an upper cooling pipe 11, a first connection pipe 12, and a lower cooling pipe 13, the upper cooling pipe 11 and the lower cooling pipe 13 being arranged in parallel, the first connection pipe 12 being vertically installed between the upper cooling pipe 11 and the lower cooling pipe 13.
Preferably, the second connection pipe 7 is vertically installed between the two first connection pipes 12, the second connection pipe 7 connects the two side cooling pipes 1 together, preferably, the cooling plate 3 has a protrusion 31 in the middle, the protrusion 31 has a hollow area 32 at the lower end, and the second connection pipe 7 passes through the hollow area 32, so that the space occupied by the cooling structure is saved.
Preferably, the spray header is installed on the side cooling pipe 1 and the cell cooling pipe 2, and when the temperature is particularly high, the spray header is opened to spray the cooling liquid onto the cell 4 to form cooling, so as to play a role in inhibiting thermal runaway.
In the actual working process, when electric core 4 trompil at the center, can reduce electric core 4' S volume, and then have certain reduction to energy density, according to the area formula S of circle pi R2For a larger cell 4, for example, the diameter R is 40mm and the cross-sectional area S is pi R2≈1256mm2If a pore canal with 5mm of center of the cylinder is opened, the sectional area is S ≈ 1177.5mm2The sectional area is reduced by about 6.29%, the size of the battery cell 4 is obtained by multiplying the sectional area by the length of the battery cell 4, the influence on the whole size is small when the center of the cylinder is opened, meanwhile, the pole piece is not easy to wind at the center of the battery cell 4, and the pole piece winding process is more convenient to realize after the center of the battery cell 4 is opened.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (8)
1. Cylinder electricity core outside and central cooling structure, its characterized in that: including side cooling tube, electric core cooling tube and cooling plate, the side cooling tube has two and parallel mutually, and electric core cooling tube installs perpendicularly between two side cooling tubes, and the cooling plate is installed between two side cooling tubes, and there is the through-hole that the level runs through in the center of electric core, and electric core cooling tube passes the through-hole, and electric core is fixed on the cooling plate.
2. The cylindrical cell exterior and center cooling structure of claim 1, wherein: the shape of the cooling plate is serpentine.
3. The cylindrical cell exterior and center cooling structure of claim 1, wherein: still including heat-conducting glue, heat-conducting glue is filled between liquid cooling board and electric core.
4. The cylindrical cell exterior and center cooling structure of claim 1, wherein: the battery core cooling pipe is characterized by further comprising a sealing ring, and the sealing ring is arranged on the outer surface of the joint of the battery core cooling pipe and the side cooling pipe.
5. The cylindrical cell exterior and center cooling structure of claim 1, wherein: the side cooling pipe comprises an upper cooling pipe, a first connecting pipe and a lower cooling pipe, the upper cooling pipe and the lower cooling pipe are arranged in parallel, and the first connecting pipe is vertically arranged between the upper cooling pipe and the lower cooling pipe.
6. The cylindrical cell exterior and center cooling structure of claim 5, wherein: the connecting device also comprises a second connecting pipe, and the second connecting pipe is vertically arranged between the two first connecting pipes.
7. The cylindrical cell exterior and center cooling structure of claim 6, wherein: the middle of the cooling plate is provided with a bulge, the lower end of the bulge is provided with a hollow area, and the second connecting pipe penetrates through the hollow area.
8. The cylindrical cell external and central cooling structure of any of claims 1 to 7, wherein: the battery pack further comprises a spray header, and the spray header is installed on the side cooling pipe and the battery core cooling pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022993507.5U CN213878202U (en) | 2020-12-14 | 2020-12-14 | Cylindrical battery cell external and central cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022993507.5U CN213878202U (en) | 2020-12-14 | 2020-12-14 | Cylindrical battery cell external and central cooling structure |
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| CN213878202U true CN213878202U (en) | 2021-08-03 |
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| CN202022993507.5U Active CN213878202U (en) | 2020-12-14 | 2020-12-14 | Cylindrical battery cell external and central cooling structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745693A (en) * | 2021-08-20 | 2021-12-03 | 上海轶源动力科技有限公司 | Hierarchical heat dissipation just has protect function's electricity battery that rubs |
| DE102022107329A1 (en) | 2022-03-29 | 2023-10-05 | Audi Aktiengesellschaft | Battery module arrangement for a motor vehicle |
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2020
- 2020-12-14 CN CN202022993507.5U patent/CN213878202U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745693A (en) * | 2021-08-20 | 2021-12-03 | 上海轶源动力科技有限公司 | Hierarchical heat dissipation just has protect function's electricity battery that rubs |
| CN113745693B (en) * | 2021-08-20 | 2023-02-17 | 上海轶源动力科技有限公司 | Hierarchical heat dissipation just has protect function's electricity battery that rubs |
| DE102022107329A1 (en) | 2022-03-29 | 2023-10-05 | Audi Aktiengesellschaft | Battery module arrangement for a motor vehicle |
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