CN204651434U - A kind of mouth organ passage parallel flow heat exchanger - Google Patents
A kind of mouth organ passage parallel flow heat exchanger Download PDFInfo
- Publication number
- CN204651434U CN204651434U CN201520293305.6U CN201520293305U CN204651434U CN 204651434 U CN204651434 U CN 204651434U CN 201520293305 U CN201520293305 U CN 201520293305U CN 204651434 U CN204651434 U CN 204651434U
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- China
- Prior art keywords
- throttle pipe
- heat exchanger
- hot channel
- mouth organ
- parallel flow
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- 230000000694 effects Effects 0.000 claims abstract description 14
- 238000005476 soldering Methods 0.000 claims abstract description 6
- 239000003507 refrigerant Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 210000001503 Joints Anatomy 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 10
- 239000012530 fluid Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000003044 adaptive Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
Abstract
The utility model relates to a kind of mouth organ passage parallel flow heat exchanger.This heat exchanger structure advantages of simple, increases effective heat exchange area, improves heat exchanger effectiveness, good effect of heat exchange, easily install connection, easy to assembly; Aluminum structure, lightweight; Adopt NOCOLOK soldering, welding quality is good, and structure is reliable; Select cold-producing medium as medium, simplify the cooling system of electric motor car.Described heat exchanger comprises throttle pipe, lower throttle pipe; Described throttle pipe is connected with inlet pipeline and outlet pipeline, and throttle pipe two ends are all provided with blanking cover; Be provided with several hot channels between described upper throttle pipe and lower throttle pipe, described hot channel is multi-channel pipeline, and this hot channel cross section is flat mouth organ shape.
Description
Technical field
The heat management system field of this Practical electric automobile, is specifically related to a kind of mouth organ passage parallel flow heat exchanger.
Background technology
Heat exchanger (heat exchanger) is a kind of energy-saving equipment realizing heat transmission between material between two or more fluid of different temperatures, be make heat pass to the lower fluid of temperature by higher fluid, make fluid temperature (F.T.) reach flow process set quota.
Battery pack in electric automobile needs heat management device (heat exchanger) to ensure their performance, durability and fail safe.Performance can suffer damage at low temperatures, and durability can at high temperature suffer damage.
Chinese patent: CN204142045U, discloses a kind of heat exchanger, comprises
First liquid chamber and the second liquid chamber; Be communicated with the multiple flat siphunculus of described first liquid chamber and the second liquid chamber;
Shell, described shell surrounds described multiple flat siphunculus from surrounding, and described shell, the first liquid chamber and the second liquid chamber form an enclosure space, and described multiple flat siphunculus is positioned at described enclosure space.
High-pressure side first medium flows through the passage be made up of two liquid chambers and flat siphunculus, low-pressure side second medium flows through the enclosure space formed by shell and two liquid chambers, first medium and second medium carry out heat exchange by flat siphunculus tube wall and two liquid chamber sidewalls, structure is simple, flat siphunculus can increase the compressive resistance of product effectively, and the variation of circulation passage pattern, circulating channel structure can be adjusted arbitrarily according to actual needs, to adapt to the needs of various product.
What usual electric motor car heat exchanger adopted is air cooling, although this kind of heat exchanger have employed the mode of liquid cooling, the same with the heat exchanger of air cooling have following shortcoming:
1, complex structure, so that install and use or keep in repair equal inconvenience.
2, the heat efficiency is low, and space availability ratio is low.
3, manufacturing cost is high.
Utility model content
In order to overcome the deficiency of background technology, the utility model provides a kind of mouth organ passage parallel flow heat exchanger, this heat exchanger structure advantages of simple, increase effective heat exchange area, improve heat exchanger effectiveness, good effect of heat exchange, easy installation connects, easy to assembly, and simplified manufacturing technique and reduction production cost, be easy to promote.
The technical scheme that the utility model adopts is: a kind of mouth organ passage parallel flow heat exchanger, is provided with battery pack, heat exchanger and base plate from top to bottom successively, and this heat exchanger assembly is positioned at shell, and described heat exchanger comprises throttle pipe, lower throttle pipe; Described throttle pipe is connected with inlet pipeline and outlet pipeline, and throttle pipe two ends are all provided with blanking cover;
Be provided with several hot channels between described upper throttle pipe and lower throttle pipe, between upper throttle pipe, hot channel and lower throttle pipe, form refrigerant flow path; Refrigerant enters from inlet pipeline, through hot channel, flows out from outlet pipeline;
Described hot channel is multi-channel pipeline, and this hot channel cross section is flat mouth organ shape.
A nearly step, form one group or some groups of refrigerant flow path loops between described upper throttle pipe, hot channel and lower throttle pipe, single group refrigerant flow path loop comprises two hot channel compositions arranged side by side, and the flow direction of two hot channels is rightabout; Upper and lower throttle pipe is all provided with dividing plate, and the dividing plate of upper throttle pipe is arranged between two hot channels arranged side by side, and the dividing plate of lower throttle pipe is arranged between two refrigerant flow path loops; Described inlet pipeline is connected with the entrance point in refrigerant flow path loop, and outlet pipe is connected with the port of export in refrigerant flow path loop.
A nearly step, the altitude range of described hot channel bore is 1 ~ 5mm, and width range is 30 ~ 80mm.
A nearly step, described throttle pipe is cylindrical, and this cylindrical diameter is 3 ~ 5 times of hot channel height.
A nearly step, described hot channel is single.
A nearly step, described inlet pipeline and outlet pipeline are all connected on throttle pipe, and be provided with two joints on the upside of described upper throttle pipe, described inlet pipeline, outlet pipeline are connected by nut with joint.
A nearly step, be provided with support bottom described hot channel, described Bracket setting has the spring leaf of support and cushioning effect, and the material of described spring leaf is stainless steel, and spring leaf is designed to reverse V-shaped stand spring.
A nearly step, hot channel and upper and lower throttle pipe and dividing plate and upper and lower throttle pipe are all formed by NOCOLOK soldering.
A nearly step, described water inlet pipe and the other end of outlet pipe be same towards, and end is all connected with water inlet and delivery port by nut.
A nearly step, the material of described hot channel is ENAW-3003, and surface is without composite bed.
The beneficial effects of the utility model are: owing to taking technique scheme, this novel electric vehicle heat exchanger structure advantages of simple, increase effective heat exchange area, improve heat exchanger effectiveness, good effect of heat exchange, easily installs connection, easy to assembly, and simplified manufacturing technique and reduction production cost, be easy to promote; Adopt NOCOLOK soldering, welding quality is good, and structure is reliable; Select cold-producing medium as medium, simplify the cooling system of electric motor car.
Accompanying drawing explanation
Fig. 1 is explosive view of the present utility model.
Fig. 2 is the structural representation of heat exchanger.
Fig. 3 is the bottom schematic view of heat exchanger.
Fig. 4 is the hot channel sectional view of mouth organ shape.
In figure 1, battery pack; 2, heat exchanger; 21, upper throttle pipe; 22, lower throttle pipe; 23, inlet pipeline; 24, outlet pipeline; 25, blanking cover; 26, hot channel; 27, dividing plate; 28, water inlet; 29, delivery port; 210, support; 211, stainless steel spring sheet; 3, base plate; 4, shell.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As Figure 1-Figure 4, a kind of mouth organ passage parallel flow heat exchanger, is provided with battery pack 1, heat exchanger 2 and base plate 3 from top to bottom successively, and this heat exchanger assembly is positioned at shell 4, and described heat exchanger comprises throttle pipe 21, lower throttle pipe 22; Described throttle pipe is connected with inlet pipeline 23 and outlet pipeline 24, and throttle pipe two ends are all provided with blanking cover 25;
Be provided with several hot channels 26 between described upper throttle pipe 21 and lower throttling 22 pipe, between upper throttle pipe 21, hot channel 26 and lower throttle pipe 22, form refrigerant flow path; Refrigerant enters from inlet pipeline 23, through hot channel 26, flows out from outlet pipeline 24;
Described hot channel 26 is multi-channel pipeline, and this hot channel 26 cross section is flat mouth organ shape.It is pointed out that the hot channel 26 of mouth organ shape is not equivalent to combine with existing multiple flat tube, those skilled in that art simply can not release the hot channel 26 of mouth organ shape from multiple flat tube.Those skilled in that art can be used as hot channel 26 with flat tube, and applicant has paid long creative work, and final design has gone out the hot channel 26 of this mouth organ shape.
The hot channel 26 of mouth organ shape is for multiple flat tube, first rate of heat exchange is higher, suppose to reach the effect of ten flat tubes mutually arranged side by side, the hot channel of mouth organ shape only needs to open ten mouth organ holes in single hot channel, heat exchanger effectiveness is higher, the tributary that fluid partitioning becomes several tiny, heat exchanger effectiveness can significantly higher than the fluid do not shunted.
Secondly, reach identical heat exchange effect, hot channel 26 materials of mouth organ shape are more economized, can be cost-saving greatly, and structure can be more simple, is easy to assembling.
The material of described hot channel 26 is preferably ENAW-3003, and surface is without composite bed.The pipeline of this material is applicable to processing, is easy to the shaping of mouth organ shape, and material is comparatively light simultaneously, alleviates the weight of whole heat exchanger.
Described hot channel 26 is single, is because will fit with battery surface.The effect that single mouth organ shape hot channel 26 is main is also under identical heat exchanger effectiveness, single can implementation structure simpler, cost is lower, meanwhile, the effect that quality is lighter.
The altitude range of described hot channel 26 bore is 1 ~ 5mm, and width range is 30 ~ 80mm.These height and the width change with radiator specification.
Described throttle pipe 21,22 is cylindrical, and this cylindrical diameter is 3 ~ 5 times of hot channel 26 height.Another innovative point of the utility model is exactly throttle pipe is small-bore cylindrical, prior art is that multiple flat tube needs to be connected with throttle pipe simultaneously, result requires that throttle pipe cross section is enough large exactly, such guarantee connects abundant flat radiating tube, so that add the weight of manufacturing cost and whole heat exchanger.
And small-bore cylindrical throttle pipe of the present utility model why can implementation structure simple, lightweight, the series of advantages such as low cost of manufacture, just can realize higher heat exchanger effectiveness because the utility model only needs to connect single mouth organ shape hot channel, because the single required space connected is few, therefore, throttle pipe can realize small-bore.
Another effect of this throttle pipe can make inner fluid temperature (F.T.) even exactly, small-borely cylindrically compares bigbore, and make the flow that passes through in the unit interval less, sectional area is also less, and the temperature difference of such inside and outside can be comparatively even.
Form one group or some groups of refrigerant flow path loops between described upper throttle pipe 21, hot channel 26 and lower throttle pipe 22, single group refrigerant flow path loop comprises two hot channels 26 arranged side by side and forms, and the flow direction of two hot channels 26 is rightabout; Upper 21 times throttle pipes 22 are all provided with dividing plate 27, and the dividing plate 27 of upper throttle pipe 21 is arranged between two hot channels 26 arranged side by side, and the dividing plate 27 of lower throttle pipe 22 is arranged between two refrigerant flow path loops; Described inlet pipeline 23 is connected with the entrance point in refrigerant flow path loop, and outlet pipeline 24 is connected with the port of export in refrigerant flow path loop.
The flow of refrigerant direction of this heat exchanger is: flow into from inlet pipeline 23, through upper throttle pipe 21, cold-producing medium enters from the entrance point in first group of refrigerant flow path loop, respectively by the mouth organ shape pipeline of hot channel 26, due to the existence of dividing plate 27, therefore single hot channel 26 can only be flowed to, when cold-producing medium arrives lower throttle pipe 22, also due to the existence of dividing plate, another hot channel 26 reciprocal can only be flowed to, so, upper throttle pipe 21 has been back to again; Due to last group of refrigerant flow path loop the port of export through upper throttle pipe 21 with after the entrance point in refrigerant flow conduit loop of a group be communicated with, similar, the second, three group of refrigerant flow path loop is also such flow direction, last cold-producing medium completes heat exchanging process, flows out from outlet pipeline 23.Meanwhile, cold-producing medium is compared with cooling fluid, and under identical heat exchanger effectiveness, flow is less, and pressure is less.
Described inlet pipeline 23 is all connected on throttle pipe 21 with outlet pipeline 24, and be provided with two joints on the upside of described upper throttle pipe 21, described inlet pipeline 23, outlet pipeline 24 are connected by nut with joint.Described inlet pipeline 23 and the other end of outlet pipeline 24 be same towards, and end is all connected with water inlet 28 and delivery port 29 by nut.
Another innovative point of the present utility model be inlet pipeline 23 with outlet pipeline 24 with upper throttle pipe 21 for removably connecting.Existing radiator is all water inlet and delivery port and throttle pipe is that integral type is arranged, the utility model is designed to detachable effect: first, the length from flow of refrigerant can be extended, inlet pipeline 23 and the outlet pipeline 24 of different length can be set according to different models, the length of flow of refrigerant is also different, a nearly step can increase heat exchange efficiency like this; In addition, strong adaptability, same heat exchanger only needs to change different pipelines, just can adaptive different model; Last water inlet and delivery port be same towards, can cold-producing medium be accessed easily and pick out cold-producing medium.
Be provided with support 210 bottom described hot channel 26, described support 210 is provided with the spring leaf 211 of support and cushioning effect, and the material of described spring leaf 211 is stainless steel, and spring leaf 211 is designed to reverse V-shaped stand spring.
The stainless steel spring sheet 211 that another innovative point support of the present utility model is arranged, reverse V-shaped stand spring can allow heat exchanger play good cushioning effect, avoids the damage of the whole heat exchanger caused because of electric automobile during traveling process moderately gusty air.
Hot channel 26 is all formed by NOCOLOK soldering with upper 21 times throttle pipes 22 with upper 21 times throttle pipes 22 and dividing plate 27.Adopt NOCOLOK soldering, welding quality is good, and structure is reliable;
Every technical staff's notice: although the utility model describes according to above-mentioned embodiment; but utility model thought of the present utility model is not limited in this utility model; the repacking of any utilization the utility model thought, all will include in this patent scope of patent protection.
Claims (10)
1. a mouth organ passage parallel flow heat exchanger, is provided with battery pack, heat exchanger and base plate from top to bottom successively, and this heat exchanger assembly is positioned at shell, it is characterized in that: described heat exchanger comprises throttle pipe, lower throttle pipe; Described throttle pipe is connected with inlet pipeline and outlet pipeline, and throttle pipe two ends are all provided with blanking cover;
Be provided with several hot channels between described upper throttle pipe and lower throttle pipe, between upper throttle pipe, hot channel and lower throttle pipe, form refrigerant flow path; Refrigerant enters from inlet pipeline, through hot channel, flows out from outlet pipeline;
Described hot channel is multi-channel pipeline, and this hot channel cross section is multiple rectangle laid out in parallel.
2. mouth organ passage parallel flow heat exchanger according to claim 1, it is characterized in that: between described upper throttle pipe, hot channel and lower throttle pipe, form one group or some groups of refrigerant flow path loops, single group refrigerant flow path loop comprises two hot channel compositions arranged side by side, and the flow direction of two hot channels is rightabout; Upper and lower throttle pipe is all provided with dividing plate, and the dividing plate of upper throttle pipe is arranged between two hot channels arranged side by side, and the dividing plate of lower throttle pipe is arranged between two refrigerant flow path loops; Described inlet pipeline is connected with the entrance point in refrigerant flow path loop, and outlet pipe is connected with the port of export in refrigerant flow path loop.
3. mouth organ passage parallel flow heat exchanger according to claim 1, is characterized in that: the altitude range of described hot channel bore is 1 ~ 5mm, and width range is 30 ~ 80mm.
4. mouth organ passage parallel flow heat exchanger according to claim 1, it is characterized in that: described throttle pipe is cylindrical, this cylindrical diameter is 3 ~ 5 times of hot channel height.
5. mouth organ passage parallel flow heat exchanger according to claim 4, is characterized in that: described hot channel is single.
6. mouth organ passage parallel flow heat exchanger according to claim 2 or 5, it is characterized in that: described inlet pipeline and outlet pipeline are all connected on throttle pipe, be provided with two joints on the upside of described upper throttle pipe, described inlet pipeline, outlet pipeline are connected by nut with joint.
7. mouth organ passage parallel flow heat exchanger according to claim 1, it is characterized in that: bottom described hot channel, be provided with support, described Bracket setting has the spring leaf of support and cushioning effect, and the material of described spring leaf is stainless steel, and spring leaf is designed to reverse V-shaped stand spring.
8. mouth organ passage parallel flow heat exchanger according to claim 1, is characterized in that: hot channel and upper and lower throttle pipe and dividing plate and upper and lower throttle pipe are all formed by NOCOLOK soldering.
9. mouth organ passage parallel flow heat exchanger according to claim 6, is characterized in that: described water inlet pipe and the other end of outlet pipe be same towards, and end is all connected with water inlet and delivery port by nut.
10. mouth organ passage parallel flow heat exchanger according to claim 1, is characterized in that: the material of described hot channel is ENAW-3003, and surface is without composite bed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520293305.6U CN204651434U (en) | 2015-05-07 | 2015-05-07 | A kind of mouth organ passage parallel flow heat exchanger |
| CN201510230780.3A CN104819603A (en) | 2015-05-07 | 2015-05-07 | Mouth organ passageway parallel-flow type heat exchanger |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520293305.6U CN204651434U (en) | 2015-05-07 | 2015-05-07 | A kind of mouth organ passage parallel flow heat exchanger |
| CN201510230780.3A CN104819603A (en) | 2015-05-07 | 2015-05-07 | Mouth organ passageway parallel-flow type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204651434U true CN204651434U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520293305.6U Active CN204651434U (en) | 2015-05-07 | 2015-05-07 | A kind of mouth organ passage parallel flow heat exchanger |
| CN201510230780.3A Pending CN104819603A (en) | 2015-05-07 | 2015-05-07 | Mouth organ passageway parallel-flow type heat exchanger |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510230780.3A Pending CN104819603A (en) | 2015-05-07 | 2015-05-07 | Mouth organ passageway parallel-flow type heat exchanger |
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| CN (2) | CN204651434U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106129532A (en) * | 2016-08-26 | 2016-11-16 | 佛山市南海元祥汽车空调配件有限公司 | Set of cells radiator |
| CN108091963A (en) * | 2017-12-12 | 2018-05-29 | 桑顿新能源科技有限公司 | A kind of new samming liquid cooling plate |
| CN110121813A (en) * | 2017-03-22 | 2019-08-13 | 宝马股份公司 | High pressure accumulator |
| CN111211373A (en) * | 2018-11-21 | 2020-05-29 | 郑州深澜动力科技有限公司 | Liquid cooling plate and manufacturing method thereof |
| CN112563555A (en) * | 2020-12-24 | 2021-03-26 | 常德中科多源电力融合技术研究院 | Battery winding needle and large-capacity square metal shell lithium ion battery |
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| KR20180054382A (en) * | 2016-11-15 | 2018-05-24 | 엘지전자 주식회사 | Heat exchanger and Battery pack having the same |
| CN108987849A (en) * | 2018-07-25 | 2018-12-11 | 扬州三丰新能源科技有限公司 | A kind of straight coldplate of refrigerant |
| CN112747562B (en) * | 2020-12-22 | 2022-06-24 | 湖南徽宏五金有限公司 | Aluminum alloy die casting |
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| JP3215587B2 (en) * | 1994-12-14 | 2001-10-09 | シャープ株式会社 | Heat exchanger |
| CN201637324U (en) * | 2010-02-03 | 2010-11-17 | 北京大起空调有限公司 | Condenser of air conditioner |
| CN101900459A (en) * | 2010-06-28 | 2010-12-01 | 吴植仁 | Micro-channel parallel flow heat exchanger |
| JP2013245916A (en) * | 2012-05-29 | 2013-12-09 | Sharp Corp | Parallel flow type heat exchanger and air conditioner mounted with the same |
| CN203731746U (en) * | 2013-12-10 | 2014-07-23 | 柳州五菱宝马利汽车空调有限公司 | Vehicle concurrent flow evaporator |
| CN203908122U (en) * | 2014-04-10 | 2014-10-29 | 河海大学常州校区 | Air conditioning condenser |
| CN104567122B (en) * | 2014-12-18 | 2017-07-28 | 广州坤江汽车配件工业制造有限公司 | Car condenser and preparation method thereof |
-
2015
- 2015-05-07 CN CN201520293305.6U patent/CN204651434U/en active Active
- 2015-05-07 CN CN201510230780.3A patent/CN104819603A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129532A (en) * | 2016-08-26 | 2016-11-16 | 佛山市南海元祥汽车空调配件有限公司 | Set of cells radiator |
| CN106129532B (en) * | 2016-08-26 | 2019-03-26 | 佛山市南海元祥汽车空调配件有限公司 | Battery pack radiator |
| CN110121813A (en) * | 2017-03-22 | 2019-08-13 | 宝马股份公司 | High pressure accumulator |
| US11600873B2 (en) | 2017-03-22 | 2023-03-07 | Bayerische Motoren Werke Aktiengesellschaft | High-voltage accumulator |
| CN108091963A (en) * | 2017-12-12 | 2018-05-29 | 桑顿新能源科技有限公司 | A kind of new samming liquid cooling plate |
| CN111211373A (en) * | 2018-11-21 | 2020-05-29 | 郑州深澜动力科技有限公司 | Liquid cooling plate and manufacturing method thereof |
| CN111211373B (en) * | 2018-11-21 | 2021-03-30 | 郑州深澜动力科技有限公司 | Liquid cooling plate and manufacturing method thereof |
| CN112563555A (en) * | 2020-12-24 | 2021-03-26 | 常德中科多源电力融合技术研究院 | Battery winding needle and large-capacity square metal shell lithium ion battery |
| CN112563555B (en) * | 2020-12-24 | 2022-05-17 | 常德中科多源电力融合技术研究院 | Battery winding needle and large-capacity square metal shell lithium ion battery |
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| Publication number | Publication date |
|---|---|
| CN104819603A (en) | 2015-08-05 |
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Effective date of registration: 20160114 Address after: The lake in Taishun County of Wenzhou City, Zhejiang province 325000 Township Water Village Branch tail Road No. 59 Patentee after: Nabaichuan Holding Co., Ltd. Patentee after: Ningde Contemporary Amperex Technology Limited Address before: The lake in Taishun County of Wenzhou City, Zhejiang province 325000 Township Water Village Branch tail Road No. 59 Patentee before: Nabaichuan Holding Co., Ltd. |