CN213304226U - Liquid cooling battery pack of new energy electric vehicle - Google Patents
Liquid cooling battery pack of new energy electric vehicle Download PDFInfo
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- CN213304226U CN213304226U CN202021660326.4U CN202021660326U CN213304226U CN 213304226 U CN213304226 U CN 213304226U CN 202021660326 U CN202021660326 U CN 202021660326U CN 213304226 U CN213304226 U CN 213304226U
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- box body
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- battery pack
- energy electric
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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 relates to a liquid cooling battery pack of a new energy electric vehicle, belonging to the technical field of new energy electric vehicles, comprising a box body with an open top, wherein a clapboard capable of dividing the box body into a plurality of storage spaces is arranged in the box body, and a first cold runner communicated with a cold fluid inlet joint arranged on the box body is arranged on the clapboard; a second cold runner communicated with an outlet of the first cold runner is arranged at the bottom of the box body, and cold fluid flows into the second cold runner from the first cold runner; and a cold fluid outlet joint communicated with the outlet of the second cold runner is also arranged on the box body. The utility model discloses a set up the cold runner on the bottom and the baffle of box, can make the curb plate that is located box circumference not participate in the water route and flow, not only improved the cooling effect of battery package, still improved the security of battery package.
Description
Technical Field
The utility model belongs to the technical field of the new forms of energy electric motor car, a new forms of energy electric motor car liquid cooling battery package is related to.
Background
With the issuance and implementation of new policies of more countries, the new energy automobile field is rapidly developed, and the battery pack has a significant role as one of the core components of new energy.
In the prior art, a cooling water channel is generally paved at the bottom of a battery pack box body of a battery pack and used for adjusting the environmental temperature of the battery, and joints of plates of the box body are sealed by sealant. The battery pack structure has the problems of low heat dissipation efficiency, poor cooling effect and poor sealing performance; in addition, because the water route is laid at the bottom plate medial surface of box, occupy the storage space of box, lead to the space utilization of box low.
Therefore, it is a problem to be solved by those skilled in the art to develop a battery pack with good sealing performance, light weight, good heat dissipation effect, simple structure, high efficiency and high strength.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application aims to provide a liquid-cooled battery pack for a new energy electric vehicle, so as to improve the cooling effect of the battery pack.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a liquid-cooled battery pack of a new energy electric vehicle comprises a box body with an open top, wherein a partition plate capable of dividing the box body into a plurality of storage spaces is arranged in the box body, and a first cold runner communicated with a cold fluid inlet joint arranged on the box body is arranged on the partition plate; a second cold runner communicated with an outlet of the first cold runner is arranged at the bottom of the box body, and cold fluid flows into the second cold runner from the first cold runner; and a cold fluid outlet joint communicated with the outlet of the second cold runner is also arranged on the box body.
Optionally, the partition plates include a plurality of transverse partition plates and a plurality of longitudinal partition plates, and the transverse partition plates and the longitudinal partition plates are arranged in a cross manner.
Optionally, the partition plates include two longitudinal partition plates parallel to one side of the box body and three transverse partition plates perpendicular to the longitudinal partition plates, and the transverse partition plates and the longitudinal partition plates are fixedly connected with the box body.
Optionally, the three diaphragms are arranged coplanar.
Optionally, the box body comprises a bottom plate and side plates arranged on the periphery of the bottom plate, the bottom plate and the side plates and adjacent side plates are connected in an inserting mode and welded at the connecting positions.
Optionally, an inserting structure is arranged between the bottom plate and the side plates and between the adjacent side plates, the inserting structure comprises a slot and a plug matched with the slot, and inserting connection is achieved between the bottom plate and the side plates and between the adjacent side plates through matching of the plug and the slot.
Optionally, the connection mode between the side plates and the bottom plate is friction stir welding double-sided welding.
Optionally, the first cold runners are arranged in multiple layers along the height direction of the box body, and the cold fluid flows from the upper layer to the lower layer along the first cold runners.
Optionally, the second cold runners are arranged in a plurality of rows in the width direction of the box body.
Optionally, the box body is built by an aluminum alloy profile with a cavity structure, and the first cold runner and the second cold runner are located in the cavity structure of the corresponding profile.
The beneficial effects of the utility model reside in that: the cold runner is arranged at the bottom of the box body and on the partition plate, so that the side plates positioned at the circumferential direction of the box body do not participate in the flow of cold fluid, the cooling effect of the battery pack is improved, and the safety of the battery pack is improved; the connection form of combining insertion and welding is adopted at the connection position of the box body, so that the sealing performance of the battery pack is further improved; the cooling effect of the battery pack is further improved by arranging the multiple rows of cold runners on the partition plates and the bottom plate.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is an exploded view of a cabinet;
FIG. 2 is a schematic structural diagram of a case;
FIG. 3 is a schematic view of the flow of cold fluid in the cold runner over the diaphragm;
FIG. 4 is a schematic view of the flow of cold fluid in the cold runner on the base plate.
Reference numerals: the cold fluid separator comprises a front side plate 1, a left side plate 2, a first diaphragm plate 3, a first longitudinal partition plate 4, a rear side plate 5, a second longitudinal partition plate 6, a right side plate 7, a third diaphragm plate 8, a second diaphragm plate 9, a bottom plate 10, a cold fluid inlet joint 11 and a cold fluid outlet joint 12.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 4, a liquid-cooled battery pack of a new energy electric vehicle comprises a box body with an open top, wherein the box body comprises a bottom plate 10 and side plates arranged on the circumference of the bottom plate 10, the bottom plate 10 is connected with the side plates and adjacent side plates in an inserting manner, and the connecting parts are welded; the box body is internally provided with a clapboard which can divide the box body into a plurality of storage spaces, the clapboard comprises a plurality of transverse clapboards and a plurality of longitudinal clapboards, the transverse clapboards and the longitudinal clapboards are arranged in a cross way, and first cold runners are arranged on the transverse clapboards and the longitudinal clapboards, wherein the first cold runners on the longitudinal clapboards are communicated with a cold fluid inlet joint 11 arranged on the box body, and cold fluid flows into the first cold runners arranged on the transverse clapboards through the first cold runners arranged on the longitudinal clapboards by the cold fluid inlet joint 11; a second cold runner communicated with an outlet of the first cold runner is arranged on the bottom plate 10, and cold fluid flows into the second cold runner from the first cold runner; a cold fluid outlet joint 12 communicated with the outlet of the second cold runner is also arranged on the box body; the cooling fluid may be cooling water or other cooling medium having fluidity.
Preferably, the first cold runners are arranged in a plurality of layers along the height direction of the box body, the cold fluid flows from the upper layer to the lower layer along the first cold runners, and the second cold runners are arranged in a plurality of rows along the width direction of the box body.
The utility model discloses a baffle include with box one side two parallel longitudinal baffles and with longitudinal baffle vertically three cross slab, the cross slab with longitudinal baffle all with box fixed connection, preferred three cross slab coplane setting.
In order to improve space utilization, the first cold runner and the second cold runner are respectively located inside the partition plate and the bottom plate 10.
In order to reduce the weight of the box body, the box body is made of an aluminum alloy material, preferably an aluminum alloy section with a cavity structure, and the first cold runner and the second cold runner are located in the cavity structure of the corresponding section.
The utility model discloses a between bottom plate 10 and the curb plate, all be equipped with grafting structure between the adjacent curb plate, grafting structure include slot and with the plug of slot matching, between bottom plate 10 and the curb plate, realize the plug connection through the cooperation of plug and slot between the adjacent curb plate.
Preferably, the connection mode between the side plates and the bottom plate 10 is friction stir welding double-sided welding, the bottom plate 10 can also be spliced by a plurality of plates, and the splicing position is subjected to friction stir welding double-sided welding.
Examples
The utility model provides a new forms of energy electric motor car liquid cooling battery package, mainly includes preceding curb plate 1, left side board 2, first cross slab 3, first longitudinal baffle 4, posterior lateral plate 5, second longitudinal baffle 6, right side board 7, third cross slab 8, second cross slab 9, bottom plate 10, the material is aluminum alloy 6082 material, adopt integral one shot extrusion, and intensity is higher, and bearing capacity is better, because each curb plate does not participate in the water route and flows, make water route joint be small in quantity, there is positive benefit to water route sealing performance.
The bottom plate 10 is formed by splicing four cavity sectional materials, the splicing positions are fixed by friction stir welding, slots are formed in the positions, corresponding to the side plates, of the bottom plate 10, plugs matched with the slots are arranged at the lower ends of the side plates, and the bottom plate 10 and the side plates are connected in a plugging mode through the matching of the plugs and the slots; the bottom plate 10 and the front, rear, left and right side plates are all welded by friction stir welding, and the rest welding parts are arc welding.
The upper surface of the bottom plate 10 is processed with a groove with a certain depth so as to realize the positioning of the first longitudinal clapboard 4 and the second longitudinal clapboard 6 of the longitudinal partition, and the first diaphragm plate 3, the second diaphragm plate 9 and the third diaphragm plate 8 of the transverse partition.
The cooling water of the battery pack flows in from a cold fluid inlet joint 11 and flows through the uppermost layers of the first longitudinal partition plate 4 and the second longitudinal partition plate 6; the uppermost-layer flow channel flows from the uppermost layers of the first longitudinal partition plate 4 and the second longitudinal partition plate 6 to the uppermost layers of the first transverse partition plate 3, the second transverse partition plate 9 and the third transverse partition plate 8 through the connecting interfaces between the adjacent partition plates; the upper layer cooling water flows to the lower layer along the cold runner in sequence and flows to the bottom plate 10 through the connecting interfaces between the transverse partition plates and the longitudinal partition plates and the bottom plate 10; after the cooling water flows into the bottom plate 10, the cooling water flows along the water path of the bottom plate 10 in sequence until the cooling water flows out through the cold fluid outlet joint 12.
The utility model discloses with subtract many-sided as the starting point such as heavy effectual, the radiating efficiency is high, connection leakproofness, trade off from many-sided such as performance, technology, cost, lightweight, heat exchange, connected mode, designed a novel battery package structure for the coefficient of heat dissipation of battery package improves, the quality alleviates, the performance reinforcing, connection leakproofness is better.
The utility model designs the section structure according to the cold fluid circulation form, the section used by the battery pack adopts a cavity extrusion section structure, the side plates on four sides are of the same section structure, the cold fluid inlet joint 11 and the cold fluid outlet joint 12 are positioned on the front side plate, the cold flow channel of the cold fluid is positioned in the inner cavity of the section, the end part of the section is sealed by an inserted sealing plate, and the connection sealing property between the parts is increased; meanwhile, the joints of the side plate profiles and the bottom plate 10 are all welded in a friction stir manner to carry out double-side welding, so that the sealing performance of each joint of the battery pack is ensured to the maximum extent.
The transverse partition plate and the longitudinal partition plate are arranged in a cross shape, the bottom plate 10 is formed by four hollow cavity section bars through friction stir welding, the welding seam can be heated uniformly by the connecting mode, thermal deformation is reduced, the size precision of a product is improved, and the integral strength is enhanced.
The utility model discloses according to the circulation path of cold fluid, the cold fluid can be at the inside snakelike flow of bottom plate 10, has saved the inner space.
The utility model discloses can effectively increase the liquid cooling area for the heat exchange compares with traditional liquid cooling battery package, and battery package curb plate, bottom plate 10, baffle all adopt the cavity section bar, adopt closing plate and friction stir welding technology more, have guaranteed the leakproofness of connecting between each part, can effectively prevent liquid leakage, also can alleviate the whole quality of battery package simultaneously, compare with other types, section bar structure, production simple process are fit for batch production.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a new forms of energy electric motor car liquid cooling battery package which characterized in that: the device comprises a box body with an open top, wherein a partition plate capable of dividing the box body into a plurality of storage spaces is arranged in the box body, and a first cold runner communicated with a cold fluid inlet joint arranged on the box body is arranged on the partition plate; a second cold runner communicated with an outlet of the first cold runner is arranged at the bottom of the box body, and cold fluid flows into the second cold runner from the first cold runner; and a cold fluid outlet joint communicated with the outlet of the second cold runner is also arranged on the box body.
2. The liquid-cooled battery pack of the new energy electric vehicle as claimed in claim 1, wherein: the partition plates comprise a plurality of transverse partition plates and a plurality of longitudinal partition plates, and the transverse partition plates and the longitudinal partition plates are arranged in a cross manner.
3. The liquid-cooled battery pack of the new energy electric vehicle as claimed in claim 1, wherein: the baffle includes two vertical separators parallel with one side of the box and three horizontal separators perpendicular to the vertical separators, and the horizontal separators and the vertical separators are fixedly connected with the box.
4. The liquid-cooled battery pack of the new energy electric vehicle as claimed in claim 3, wherein: the three diaphragm plates are arranged in a coplanar manner.
5. The liquid-cooled battery pack of the new energy electric vehicle as claimed in claim 1, wherein: the box body comprises a bottom plate and side plates arranged on the periphery of the bottom plate, the bottom plate is in plug-in connection with the side plates, and adjacent side plates are welded at the joints.
6. The liquid-cooled battery pack of the new energy electric vehicle as claimed in claim 5, wherein: the plug-in structure is arranged between the bottom plate and the side plates and between the adjacent side plates and comprises a slot and a plug matched with the slot, and the plug-in connection is realized between the bottom plate and the side plates and between the adjacent side plates through the matching of the plug and the slot.
7. The liquid-cooled battery pack of the new energy electric vehicle as claimed in claim 5, wherein: the side plates and the bottom plate are connected in a friction stir welding double-sided welding mode.
8. The liquid-cooled battery pack of the new energy electric vehicle as claimed in claim 1, wherein: the first cold runner is arranged in a multilayer mode in the height direction of the box body, and cold fluid flows from the upper layer to the lower layer along the first cold runner.
9. The liquid-cooled battery pack of the new energy electric vehicle as claimed in claim 1, wherein: the second cold runners are arranged in a plurality of rows along the width direction of the box body.
10. The liquid-cooled battery pack of the new energy electric vehicle as claimed in claim 1, wherein: the box is built by the aluminum alloy section bar that has the cavity structure and forms, and first cold runner and second cold runner are located the cavity structure of corresponding section bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021660326.4U CN213304226U (en) | 2020-08-11 | 2020-08-11 | Liquid cooling battery pack of new energy electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021660326.4U CN213304226U (en) | 2020-08-11 | 2020-08-11 | Liquid cooling battery pack of new energy electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213304226U true CN213304226U (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021660326.4U Active CN213304226U (en) | 2020-08-11 | 2020-08-11 | Liquid cooling battery pack of new energy electric vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991226A (en) * | 2021-11-19 | 2022-01-28 | 九环储能科技有限公司 | Combined energy storage monomer, energy storage cluster and energy storage device |
| CN114628841A (en) * | 2021-12-27 | 2022-06-14 | 浙江零跑科技股份有限公司 | New energy vehicle battery pack |
| WO2023232047A1 (en) * | 2022-05-31 | 2023-12-07 | 瑞浦兰钧能源股份有限公司 | Liquid cooling plate for battery pack and battery pack |
-
2020
- 2020-08-11 CN CN202021660326.4U patent/CN213304226U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991226A (en) * | 2021-11-19 | 2022-01-28 | 九环储能科技有限公司 | Combined energy storage monomer, energy storage cluster and energy storage device |
| CN114628841A (en) * | 2021-12-27 | 2022-06-14 | 浙江零跑科技股份有限公司 | New energy vehicle battery pack |
| CN114628841B (en) * | 2021-12-27 | 2024-05-14 | 浙江零跑科技股份有限公司 | New energy vehicle battery pack |
| WO2023232047A1 (en) * | 2022-05-31 | 2023-12-07 | 瑞浦兰钧能源股份有限公司 | Liquid cooling plate for battery pack and battery pack |
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