CN216288610U - Integrated liquid cooling battery package lower box - Google Patents
Integrated liquid cooling battery package lower box Download PDFInfo
- Publication number
- CN216288610U CN216288610U CN202120913351.7U CN202120913351U CN216288610U CN 216288610 U CN216288610 U CN 216288610U CN 202120913351 U CN202120913351 U CN 202120913351U CN 216288610 U CN216288610 U CN 216288610U
- Authority
- CN
- China
- Prior art keywords
- plate
- liquid cooling
- liquid
- wallboard
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model provides an integrated liquid-cooled battery pack lower box body which can solve the technical problems of potential safety hazards of loose connection and leakage of cooling liquid caused by vibration influence on a liquid inlet and outlet connecting pipe and an adapter. The utility model provides a box under integrated liquid cooling battery package, includes bottom plate and wallboard, and the bottom plate includes the liquid cooling board, and the feed liquor switching device is connected to the liquid cooling board and goes out liquid switching device, its characterized in that: feed liquor switching device and play liquid switching device all include takeover and keysets, the one end of takeover runs through the wallboard, the lower part of the other end of takeover is provided with the base and runs through the base and perforates with the body of lumen intercommunication, the concatenation hole has been seted up to the bottom plate, the keysets is installed in the concatenation hole and is passed through friction stir welding with the bottom plate and link to each other, the upper portion of keysets is equipped with the splice groove, the pedestal mounting passes through friction stir welding with the keysets and links to each other in the splice groove, splice groove and the perforation intercommunication of body, the base is located keysets installation position and is equipped with the intercommunication groove, the outside opening in intercommunication groove passes through lateral part stuff plug dress.
Description
Technical Field
The utility model relates to the technical field of new energy pure electric vehicles, in particular to an integrated liquid cooling battery pack lower box body.
Background
The power battery is used as a power device of the new energy pure electric vehicle, heat can be continuously generated in the working process, the performance and the service life of the battery can be seriously influenced by the accumulation of excessive heat, and therefore the battery needs to be subjected to heat management, and liquid cooling heat dissipation is the most effective and common heat management mode.
The liquid cooling heat radiation structure adopts liquid cold drawing mode in the present battery package, and traditional liquid cold drawing structural style is split type, and box belongs to different structures under liquid cold drawing and the battery package promptly, realizes the combination through the assembly. This structural form has the following disadvantages:
(1) the liquid cooling plate needs to occupy the internal space of the battery box body independently, and the space utilization rate of the battery pack is poor;
(2) external pipelines are needed to be connected between the liquid cooling plates and the box body, so that the complexity of the internal pipeline of the battery pack is increased;
(3) the liquid cooling plate needs to be provided with a welding water nozzle to be connected with an external pipeline, and liquid leakage risks exist at the welding water nozzle and a joint;
(4) the split liquid cooling plate needs to be processed separately, and the production cost of the box body is high.
Patent CN202020442338.3 discloses a battery standard box, and liquid cold drawing is integrated with box frame, and monoblock liquid cold drawing both had been regarded as the section bar support of standard bottom of the case portion for bear the weight of battery, can be used for cooling battery again, has improved battery package space utilization to reduce the setting of tube coupling and other auxiliary component, the structure is simpler, and the cost is lower.
However, the liquid inlet and outlet connecting pipes of the battery standard box or the water nozzle and the adapter are in threaded connection, and are influenced by vibration in the running process of the new-energy pure electric vehicle, so that potential safety hazards of loosening of threaded connection and leakage of cooling liquid exist.
SUMMERY OF THE UTILITY MODEL
The utility model provides an integrated liquid-cooled battery pack lower box body which can solve the technical problems of potential safety hazards of loosening of threaded connection and leakage of cooling liquid caused by vibration of a liquid inlet and outlet connecting pipe and an adapter.
Its technical scheme is such, integrated liquid cooling battery package lower box, lower box includes the bottom plate, encloses and closes in preceding wallboard, back wallboard, left wallboard and the right wallboard of bottom plate circumference, the bottom plate includes the liquid cooling board, the feed liquor switching device is connected to the liquid cooling board and goes out liquid switching device, its characterized in that: the liquid inlet switching device and the liquid outlet switching device both comprise connecting pipes and a switching plate, one end of each connecting pipe penetrates through the front wall plate, the lower portion of the other end of each connecting pipe is provided with a base and a pipe body perforation which penetrates through the base and is communicated with a pipe cavity of each connecting pipe, a splicing hole is formed in the bottom plate, the switching plate is installed in the splicing hole and is connected with the bottom plate through friction stir welding, a splicing groove is formed in the upper portion of the switching plate, the base is installed in the splicing groove and is connected with the switching plate through friction stir welding, the splicing groove is communicated with the pipe body perforation, a communicating groove is formed in the mounting position, located at the switching plate mounting position, of the base and penetrates through the outer side walls of the switching plate and the liquid cooling plate and then is communicated with the inner flow channels of the splicing groove and the liquid cooling plate, the outer side openings of the communicating groove are plugged through side plugging strips, and the side plugging strips and the switching plate, The outer side wall of the liquid cooling plate is connected through friction stir welding;
the bottom plate further comprises a connecting plate, the lower parts of the front wall plate, the rear wall plate, the left wall plate and the right wall plate are respectively connected with the connecting plate which is horizontally arranged and is circumferentially attached to the liquid cooling plate, the left side and the right side of the connecting plate connected with the front wall plate are respectively provided with the splicing holes, and the communicating groove penetrates through the adjacent parts of the adapter plate and the liquid cooling plate;
the left side wall/right side wall of the adapter plate positioned at the outer side is flush with the side wall on the same side of the connecting plate, the rear side wall of the adapter plate is attached to the front side wall of the liquid cooling plate, and the adjacent connecting plates, the connecting plate and the liquid cooling plate and the connecting plate and the adapter plate are respectively connected through friction stir welding;
the front end and the rear end of the cavity of the liquid cooling plate are plugged by end plugging strips, the end plugging strips are connected with the liquid cooling plate through friction stir welding, and the communicating groove penetrates through the end plugging strips at the front end of the liquid cooling plate.
Further, the upper portions of the front wall plate, the rear wall plate, the left wall plate and the right wall plate are provided with upper flanging edges which are arranged in the horizontal direction and extend outwards, the lower portions of the left wall plate and the right wall plate are provided with lower flanging edges which are arranged in the horizontal direction and extend outwards, the upper flanging edges and the lower flanging edges are provided with mounting holes, and hoisting sleeves are mounted in the lower flanging mounting holes.
According to the integrated liquid cooling battery pack lower box body, the end parts of the connecting pipes of the liquid inlet and outlet switching devices are provided with the bases, the bases are spliced with the splicing grooves in the upper parts of the switching plates (equivalent to the adapters), and the switching plates are spliced with the splicing holes in the bottom plate, so that the connecting plates can be connected with the switching plates and the bottom plate through friction stir welding, the connection reliability of the liquid inlet and outlet connecting pipes is ensured, the connecting pipes cannot be loosened due to vehicle running vibration, and potential safety hazards are eliminated.
Drawings
FIG. 1 is an isometric view of a liquid cooled plate design of the present invention.
Fig. 2 is an exploded view of the liquid cooled panel design of the present invention.
FIG. 3 is a cross-sectional view of a cold plate flow passage of the present invention.
FIG. 4 is a schematic view of the liquid inlet and outlet connection pipe of the present invention.
Fig. 5 is a sectional view of the liquid inlet and outlet connection pipe of the present invention.
Fig. 6 is a schematic view of the connection of the front wall plate, the connecting plate and the liquid inlet and outlet switching device according to the present invention.
Fig. 7 is a sectional view of the front wall panel, the connecting panel and the liquid inlet transition device of the present invention.
Fig. 8 is a cross-sectional view of the base plate of the present invention.
FIG. 9 is a schematic view of the design of the liquid cooling plate processing technology of the present invention.
FIG. 10 is a schematic view of a welding process for a liquid inlet pipe according to the present invention.
Fig. 11 is a schematic view of the welding process of the adapter device of the present invention.
Fig. 12 is a schematic view of the design of the machining process of the base plate assembly according to the present invention.
FIG. 13 is a schematic view of a welding process for the case assembly according to the present invention.
Fig. 14 is a schematic view of a switching flow channel welding process design according to the present invention.
Detailed Description
Referring to fig. 1 to 8, an integrated liquid-cooled battery pack lower box comprises a bottom plate, a front wall plate 101, a rear wall plate 102, a left wall plate 202 and a right wall plate 201 which are enclosed in the circumferential direction of the bottom plate, wherein the bottom plate comprises a liquid-cooled plate 300, the front end and the rear end of a cavity of the liquid-cooled plate 300 are plugged by end plugging strips (a front end plugging strip 301 and a rear end plugging strip 302 respectively), the end plugging strips are connected with the liquid-cooled plate 300 through friction stir welding, the liquid-cooled plate 300 is connected with a liquid inlet adapter and a liquid outlet adapter, the liquid inlet adapter and the liquid outlet adapter respectively comprise a connecting pipe, a plug and an adapter (a liquid inlet connecting pipe 401, a liquid inlet plug 402, a liquid inlet adapter 403, a liquid outlet connecting pipe 404, a liquid outlet plug 405 and a liquid outlet adapter 406 respectively), one end of an opening of the connecting pipe penetrates through the front wall plate 101, the connecting pipe is integrally formed with a base and a pipe body penetrating through the lower part of the other end of the plug and communicated with a pipe cavity of the connecting pipe, the bottom plate is provided with a splicing hole, the adapter plate is arranged in the splicing hole and is connected with the bottom plate through friction stir welding, a splicing groove is formed in the upper portion of the adapter plate, the base is arranged in the splicing groove and is connected with the adapter plate through friction stir welding, the splicing groove is communicated with the tube body through a hole, a communicating groove is formed in the base at the installation position of the adapter plate, the communicating groove penetrates through the adapter plate and the outer side wall of the liquid cooling plate 300 and then is communicated with the splicing groove and the inner flow channel of the liquid cooling plate 300, the outer side opening of the communicating groove is plugged through a side plugging strip (namely a left side plugging strip 304 and a right side plugging strip 303 respectively), and the side plugging strip is connected with the adapter plate and the outer side wall of the liquid cooling plate 300 through friction stir welding;
the bottom plate still includes the connecting plate, preceding wallboard 101, back wallboard 102, the connecting plate that the level setting and laminated with liquid cooling board 300 circumference are connected with respectively to the lower part of left wallboard 202 and right wallboard 201, the concatenation hole has been seted up respectively to the left and right sides of the connecting plate that preceding wallboard 101 is connected, the adapter plate is installed behind the concatenation hole, the left side wall/right side wall that the adapter plate is located the outside flushes with the lateral wall of connecting plate homonymy, the back lateral wall of adapter plate and the laminating of the preceding lateral wall of liquid cooling board 300, between the adjacent connecting plate, link to each other through friction stir welding respectively between connecting plate and the liquid cooling board 300 and between connecting plate and the adapter plate, the intercommunication groove runs through the position that adapter plate and liquid cooling board 300 border on (in this embodiment, the position that borders on indicates the welding seam) and preceding tip stuff 301. The cooling liquid enters the cooling system from the liquid inlet connecting pipe, sequentially enters the liquid cooling plate through the radial through hole of the connecting pipe and the communicating groove of the adapter plate, circularly flows through the liquid cooling plate and then flows out of the box body through the liquid outlet connecting pipe of the liquid outlet adapter device.
The upper portions of the front wall plate 101, the rear wall plate 102, the left wall plate 202 and the right wall plate 201 are provided with upper flanging which is horizontally arranged and extends outwards, the lower portions of the left wall plate 202 and the right wall plate 201 are provided with lower flanging which is horizontally arranged and extends outwards, the upper flanging is provided with an upper cover mounting hole, the lower flanging is provided with a hoisting mounting hole, and a hoisting sleeve 203 is arranged in the hoisting mounting hole.
The following description specifically describes a processing method of the integrated liquid-cooled battery pack lower box body:
(1) profile extrusion and machining: carrying out profile extrusion and primary machining on components related to the box body structure, such as front/rear/left/right wall plates, a liquid cooling plate, a connecting pipe, a plug, an adapter plate and the like;
(2) liquid-cooled plate processing, as shown in fig. 9: two equal-width liquid cooling plate profiles are welded in a splicing mode through friction stir welding, so that the width of the liquid cooling plate is designed, and meanwhile, the profile extrusion die and the machining cost are reduced; machining the cold plate after splicing and welding, and milling part of cavity reinforcing ribs to form a flow channel required by design; cold plate plugs are plugged into cavities at two ends of the machined cold plate, friction stir welding is carried out on the plugs at the upper surface and the lower surface of the cold plate, the single-side welding depth is required to exceed 1/2 of the thickness of the cold plate, full penetration is realized, the direction of the cold plate is marked, the end A is connected with the front wall plate, and the end B is connected with the rear wall plate;
(3) processing of the liquid inlet and outlet switching device: as shown in fig. 10, firstly, a plug is welded by friction stir welding, and an opening on the opposite surface of an inlet of the connecting pipe is plugged; then splicing the base of the adapter tube and the splicing groove of the adapter plate, welding the base and the adapter plate by adopting a friction stir welding mode, firstly welding around the U-shaped track of the base on the front side, then welding the back side by adopting a linear track, forming an enclosing shape for the liquid inlet by the two tracks, and ensuring that the sum of the welding depths of the two welding seams is greater than the thickness of the adapter plate so as to ensure the sealing of the adapter water channel; finally, welding the adapter plate and the connecting plate at the bottom of the front wall plate in a friction stir welding mode, as shown in fig. 11, performing double-sided welding on the front side and the back side to realize full penetration;
(4) processing the bottom plate assembly: welding the cold plate with the front wall plate and the rear wall plate in a friction stir welding mode, welding the front wall plate and the rear wall plate on the front side and the rear side to realize full penetration, machining the bottom plate assembly after welding, and milling a communicating groove between the adapter device and the liquid cooling plate on the side, as shown in fig. 12;
(5) welding a box body assembly: the processed bottom plate assembly is welded with the left side plate and the right side plate in a splicing mode, wherein butt welding seams are welded in a friction stir mode, and fillet welding seams are welded in a fusion mode; as shown in fig. 13, a support plug strip is added to the switching flow channel connecting the front wall plate and the liquid cooling plate to meet the requirement of the welding process, as shown in fig. 14; the butt welding seams of the bottom plate and the left and right side plates require positive and negative double-sided welding to realize full penetration;
(6) the box body assembly machine adds: and (4) performing assembly machining on the box body subjected to assembly welding, and processing a module mounting hole, an upper cover mounting hole, a hoisting mounting hole and the like.
(7) And (3) assembling and inspecting the box body: and assembling and processing the box body subjected to machining of the assembly, mounting a rivet nut, a hoisting sleeve and the like, and finally, carrying out box body quality inspection to finish the whole processing process.
In conclusion, through the implementation of the utility model, the integration of the liquid cooling plate and the box body bottom plate is realized, the full built-in of the liquid cooling system runner pipeline is realized, the box body structure is simplified, the space utilization rate is improved, the leakage risk of the external pipeline is avoided, the connection reliability of the liquid inlet and outlet connecting pipes is realized through the improvement of the technology, and the product performance is improved.
Claims (2)
1. The utility model provides a box under integrated liquid cooling battery package, the box includes the bottom plate down, encloses and closes in preceding wallboard, back wallboard, left wallboard and the right wallboard of bottom plate circumference, the bottom plate includes the liquid cooling board, the liquid cooling board is connected feed liquor switching device and is gone out liquid switching device, its characterized in that: the liquid inlet switching device and the liquid outlet switching device both comprise connecting pipes and a switching plate, one end of each connecting pipe penetrates through the front wall plate, the lower portion of the other end of each connecting pipe is provided with a base and a pipe body perforation which penetrates through the base and is communicated with a pipe cavity of each connecting pipe, a splicing hole is formed in the bottom plate, the switching plate is installed in the splicing hole and is connected with the bottom plate through friction stir welding, a splicing groove is formed in the upper portion of the switching plate, the base is installed in the splicing groove and is connected with the switching plate through friction stir welding, the splicing groove is communicated with the pipe body perforation, a communicating groove is formed in the mounting position, located at the switching plate mounting position, of the base and penetrates through the outer side walls of the switching plate and the liquid cooling plate and then is communicated with the inner flow channels of the splicing groove and the liquid cooling plate, the outer side openings of the communicating groove are plugged through side plugging strips, and the side plugging strips and the switching plate, The outer side wall of the liquid cooling plate is connected through friction stir welding;
the bottom plate further comprises a connecting plate, the lower parts of the front wall plate, the rear wall plate, the left wall plate and the right wall plate are respectively connected with the connecting plate which is horizontally arranged and is circumferentially attached to the liquid cooling plate, the left side and the right side of the connecting plate connected with the front wall plate are respectively provided with the splicing holes, and the communicating groove penetrates through the adjacent parts of the adapter plate and the liquid cooling plate;
the left side wall/right side wall of the adapter plate positioned at the outer side is flush with the side wall on the same side of the connecting plate, the rear side wall of the adapter plate is attached to the front side wall of the liquid cooling plate, and the adjacent connecting plates, the connecting plate and the liquid cooling plate and the connecting plate and the adapter plate are respectively connected through friction stir welding;
the front end and the rear end of the cavity of the liquid cooling plate are plugged by end plugging strips, the end plugging strips are connected with the liquid cooling plate through friction stir welding, and the communicating groove penetrates through the end plugging strips at the front end of the liquid cooling plate.
2. The integrated liquid-cooled battery pack lower case of claim 1, wherein: the upper portion of preceding wallboard, back wallboard, left wallboard and right wallboard is formed with the upper portion turn-ups that the horizontal direction set up and outwards extend, the lower part of left wallboard and right wallboard is formed with the lower part turn-ups that the horizontal direction set up and outwards extend, the mounting hole has all been seted up to the upper portion turn-ups with the lower part turn-ups, install hoisting sleeve in the turn-ups's of lower part mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120913351.7U CN216288610U (en) | 2021-04-29 | 2021-04-29 | Integrated liquid cooling battery package lower box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120913351.7U CN216288610U (en) | 2021-04-29 | 2021-04-29 | Integrated liquid cooling battery package lower box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216288610U true CN216288610U (en) | 2022-04-12 |
Family
ID=81000980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120913351.7U Active CN216288610U (en) | 2021-04-29 | 2021-04-29 | Integrated liquid cooling battery package lower box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216288610U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613426A (en) * | 2023-07-19 | 2023-08-18 | 今创集团股份有限公司 | Liquid cooling plate for energy storage container |
| CN117559039A (en) * | 2024-01-10 | 2024-02-13 | 新途(无锡)新能源科技有限公司 | Energy storage box body of integrated runner |
-
2021
- 2021-04-29 CN CN202120913351.7U patent/CN216288610U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613426A (en) * | 2023-07-19 | 2023-08-18 | 今创集团股份有限公司 | Liquid cooling plate for energy storage container |
| CN116613426B (en) * | 2023-07-19 | 2023-09-19 | 今创集团股份有限公司 | Liquid cooling plate for energy storage container |
| CN117559039A (en) * | 2024-01-10 | 2024-02-13 | 新途(无锡)新能源科技有限公司 | Energy storage box body of integrated runner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216288610U (en) | Integrated liquid cooling battery package lower box | |
| WO2019034097A1 (en) | Battery pack housing having heat exchange function, and battery pack | |
| CN111799421A (en) | Integrated lower box body of standard battery B box | |
| CN212161883U (en) | Battery standard box | |
| CN113381090A (en) | Integrated liquid cooling battery package lower box | |
| CN110769661A (en) | Liquid cooling system for collision type cabinet | |
| CN114845532A (en) | Compact high-efficient general cooling liquid cooling subrack | |
| CN110828730A (en) | Battery box lower tray integrated with detachable water cooling plate assembly | |
| CN113541050B (en) | Liquid cooling radiating wire harness clamp device | |
| CN113346161A (en) | Liquid-cooled panel and method for manufacturing same | |
| CN211350756U (en) | Plug-in assembly boundary beam unit, lower shell assembly and power battery pack thereof | |
| CN212073689U (en) | Water-cooling box structure with plug | |
| CN218300005U (en) | Bottom connector and battery box | |
| CN111629559A (en) | Liquid cooling heat dissipation plate based on three-dimensional cooling flow channel and machining method thereof | |
| CN212542604U (en) | Integrated lower box body of standard battery B box | |
| CN107612271B (en) | Linear motor primary and processing method of linear motor primary cooling structure | |
| CN212811553U (en) | Device for radiating frequency converter and shell of frequency converter | |
| CN211828891U (en) | Water-cooling box structure | |
| CN211064015U (en) | Liquid cooling system for collision type cabinet | |
| CN210326051U (en) | Pin-connected panel water-cooling board | |
| CN220963576U (en) | Battery box and battery pack | |
| CN111261819A (en) | Water-cooling box structure and production process thereof | |
| CN111341963A (en) | Battery box body for passenger car and manufacturing method thereof | |
| CN216481234U (en) | Ultra-thin copper aluminium composite skirting line formula radiator | |
| CN217504447U (en) | Plate-fin type engineering machinery radiator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |