CN111799421A - Integrated lower box body of standard battery B box - Google Patents
Integrated lower box body of standard battery B box Download PDFInfo
- Publication number
- CN111799421A CN111799421A CN202010762853.4A CN202010762853A CN111799421A CN 111799421 A CN111799421 A CN 111799421A CN 202010762853 A CN202010762853 A CN 202010762853A CN 111799421 A CN111799421 A CN 111799421A
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- China
- Prior art keywords
- bottom plate
- plate
- box
- standard battery
- liquid
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- 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.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention belongs to the field of battery boxes, and relates to an integrated type standard battery B box lower box body, which comprises a surrounding plate, a liquid cooling bottom plate and a front surrounding plate, wherein the liquid cooling bottom plate and the front surrounding plate are assembled on the inner side of the surrounding plate, the surrounding plate is formed by enclosing a left surrounding plate, a right surrounding plate and a rear surrounding plate, the liquid cooling bottom plate comprises two or more hollow bottom plates, two liquid inlet and outlet connectors which are assembled on the end part of one end of the bottom plate, far away from the rear surrounding plate, and are communicated with the bottom plate, and an inner blocking plate which is inserted in a groove at the end part of one end of the bottom plate, the rear surrounding plate is inserted in a groove at the other end of the bottom plate, between the right enclosing plate, solve current standard battery B case down in the box liquid cooling board alone fix on box bottom plate down, have the box weight down big, the coolant liquid easily reveals, manufacturing cost is high, with the low problem of box bottom plate junction intensity down.
Description
Technical Field
The invention belongs to the field of battery boxes, and relates to a lower box body of an integrated standard battery B box.
Background
In recent years, electric automobiles are developed rapidly as emerging industries. The power battery is used as a core part of the electric automobile, and gradually forms some standard products in the industry, such as a standard battery B box and the like. The B box is commonly applied in the field of electric buses and commercial vehicles, and the external dimension of the B box is generally 630x880x240 (unit: mm); the mounting hole size was (266+266) x595 (unit: mm). The box B usually contains a liquid cooling plate, and cooling liquid flows in the liquid cooling plate to dissipate heat of the power battery, so that the safety of the power battery in the charging and discharging process is ensured.
In the lower box body of the common standard battery B box, the liquid cooling plate is placed on the bottom plate of the lower box body and is fixed by welding or screwing, and the liquid cooling plate exists independently of the lower box body, so that the additional weight is added due to the independent existence of the liquid cooling plate, and the weight of the lower box body is heavier; the water inlet and outlet of the liquid cooling plate are arranged in the box body, and if the cooling liquid leaks, the cooling liquid can enter the battery module to cause dangerous consequences; the liquid cooling plate has a water channel inside, so that the internal structure is complex, and the part of the liquid cooling plate is usually manufactured in a casting machining or complete machining mode, so that the cost is high; the pressure drop of the internal flow passage of the liquid cooling plate is high, so that the power consumption of the pump is high; the welding part or all of the liquid cooling plate adopts arc welding, and has the defects of low strength and the like. Therefore, the integrated lower box body of the standard battery B box, which optimizes the structure of the internal liquid cooling plate, needs to be designed.
Disclosure of Invention
In view of the above, the invention provides an integrated lower box body of a standard battery B box, which aims to solve the problems that a liquid cooling plate in the lower box body of the existing standard battery B box is separately fixed on a bottom plate of the lower box body, the lower box body is heavy in weight, cooling liquid is easy to leak, the manufacturing cost is high, and the strength of a joint of the lower box body and the bottom plate of the lower box body is low.
In order to achieve the purpose, the invention provides an integrated type standard battery B box lower box body which comprises a surrounding plate, a liquid cooling bottom plate and a front surrounding plate, wherein the liquid cooling bottom plate and the front surrounding plate are assembled on the inner side of the surrounding plate, the surrounding plate is formed by enclosing a left surrounding plate, a right surrounding plate and a rear surrounding plate, the liquid cooling bottom plate comprises two or more hollow bottom plates, two liquid inlet and outlet connectors which are assembled at the end part of one end of the bottom plate, far away from the rear surrounding plate, communicated with the bottom plate and an inner blocking plate inserted in a groove at the end part of one end of the bottom plate, the rear surrounding plate is inserted in a groove at the other end of the bottom plate, inserting plates are uniformly and fixedly installed in the bottom plate along.
Furthermore, two or more corresponding lifting lugs are fixedly arranged on the outer sides of the left enclosing plate and the right enclosing plate.
Furthermore, the back panel is L-shaped, and the boss part of the back panel is inserted in the groove of the bottom plate.
Furthermore, the adjacent bottom plates are fixed in a welding mode.
Furthermore, the end part of the bottom plate is provided with a jack, and the liquid inlet and outlet joint is inserted in the jack of the bottom plate.
Further, the edges provided with the threaded holes are integrally formed on the outer sides of the left enclosing plate and the right enclosing plate.
The invention has the beneficial effects that:
1. according to the integrated lower box body of the standard battery B box, the two liquid cooling bottom plates are spliced together through friction stir welding, the cavities in the two liquid cooling bottom plates jointly form a cooling liquid flow channel, the cooling liquid flows in a snake shape in the cavity in the bottom plates, and the liquid inlet and outlet joints are welded at the positions of the liquid inlet and outlet jacks on the bottom plates. The number of cavities on the section of the bottom plate and the width of a single cavity are reasonably arranged, so that a cooling liquid flow channel corresponding to the lower box is reasonable in layout, the pressure drop between the liquid inlet joint and the liquid outlet joint is low, under the conditions that the cooling liquid is 50/50 ethylene glycol aqueous solution and the flow rate is 15L/min, simulation shows that the pressure drop is 15.24kpa, and the low pressure drop is beneficial to reducing the power consumption of the pump.
2. According to the integrated standard battery B box lower box body disclosed by the invention, the components such as the enclosing plate, the liquid cooling bottom plate, the lifting lug and the front enclosing plate are aluminum alloy extruded sections and are obtained through simple machining procedures such as sawing, punching and the like, the structure is simple, the machining cost is lower, and the large-scale production is facilitated; the liquid inlet and outlet joints are arranged on the outer side of the front wall plate, so that the damage to the battery module above the liquid cooling bottom plate caused by the leakage of cooling liquid from the inlet and outlet when the liquid inlet and outlet joints are arranged on the inner side of the wall plate is avoided; the liquid cooling bottom plate and the enclosing plate are connected through friction stir welding, and compared with arc welding, the friction stir welding has high welding strength and good sealing performance; the cavity in the bottom plate of the lower box body is used as a flow channel of cooling liquid, the liquid cooling function is integrated to the bottom plate, an additional liquid cooling plate is not needed, the space is saved, and the structure is simplified.
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 combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects 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 a schematic structural diagram of a lower box body of an integrated standard battery B box of the invention;
FIG. 2 is a schematic diagram of the assembly of a coaming and a lifting lug in a lower box body of an integrated standard battery B box;
FIG. 3 is a schematic diagram showing the composition of a liquid-cooled bottom plate in the lower box of the integrated standard battery B box according to the present invention;
FIG. 4 is a schematic diagram of the assembly of a liquid-cooled bottom plate and a surrounding plate in the lower box body of the integrated standard battery B box of the invention;
FIG. 5 is a schematic view of a liquid cooling plate flow passage in the lower case of the integrated standard battery B case of the present invention;
FIG. 6 is a schematic view of plugs at two ends of a flow channel in a lower box body of an integrated standard battery B box according to the present invention;
fig. 7 is a schematic cross-sectional view of the bottom plate of the lower case of the integrated standard battery B case of the present invention.
Reference numerals: the liquid cooling device comprises a surrounding plate 1, a back surrounding plate 101, a left surrounding plate 102, a right surrounding plate 103, a liquid cooling bottom plate 2, a bottom plate 201, a liquid inlet and outlet connector 202, a blocking plate 203, a lifting lug 3 and a front surrounding plate 4.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope 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 in a schematic way, 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 the drawings in which there is no intention to limit the invention thereto; to better illustrate 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 components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
The integrated lower box body of the standard battery box B shown in figure 1 comprises a coaming 1, a liquid cooling bottom plate 2, a lifting lug 3 and a front coaming 4. The coaming 1 comprises a back coaming 101, a left coaming 102 and a right coaming 103 (shown in fig. 2), wherein the back coaming 101, the left coaming 102 and the right coaming 103 are all aluminum alloy extruded sections made of 6005A-T6 materials and are obtained through machining processes such as sawing, punching and the like. The back panel 101 is L-shaped and is respectively connected with the left panel 102 and the right panel 103 by arc welding. Be connected through friction stir welding between bounding wall 1 and the liquid cooling bottom plate 2, connect through arc-welding respectively between preceding bounding wall 4 and liquid cooling bottom plate 2, left bounding wall 102 and the right bounding wall 103, connect through arc-welding between back panel 101, left bounding wall 102 and the right bounding wall 103. The outer sides of the left enclosing plate 102 and the right enclosing plate 103 are respectively provided with three lifting lugs 3, the lifting lugs are made of 6061-T6 aluminum alloy extruded profiles, and the lifting lugs 3 are arranged on the left enclosing plate 102 and the right enclosing plate 103 through arc welding.
The liquid-cooled base plate 2 comprises two hollow base plates 201, two liquid inlet and outlet connectors 202 and two blocking plates 203 (shown in fig. 3). The bottom plate 201 is made of 6005A-T6 aluminum alloy extruded section, the liquid inlet and outlet joints 202 and the blocking plate 203 are made of 6061-T6 aluminum alloy extruded section, inserting plates are uniformly and fixedly installed in the bottom plate 201 along the length direction, gaps are alternately reserved between the inserting plates and the end part of the bottom plate 201, so that cooling liquid in the bottom plate 201 flows in a snake shape in the cavity in the bottom plate 201, and the section of the bottom plate 201 is shown in FIG. 7. The end parts of two sides of the bottom plate 201 are processed into grooves, the blocking plate 203 is inserted into the groove at one end, the back panel 101 is inserted into the groove at the other end, the blocking plate 203 is connected with the bottom plate 201 through friction stir welding, the two bottom plates 201 are connected through friction stir welding, and the liquid inlet and outlet joint 202 is obtained by an extruded section through the processes of bending, machining and the like. The liquid inlet and outlet joint 202 is connected and communicated with the bottom plate 201 through arc welding. The liquid inlet and outlet joint 202 is installed at a position of a liquid inlet and outlet hole near the front end of the bottom plate 201, and the liquid inlet and outlet hole is located on the outer side of the front wall plate 4.
After the enclosing plate 1 and the liquid cooling bottom plate 2 are manufactured respectively, the groove at the other end of the bottom plate 201 is inserted into the boss part of the back enclosing plate 101, and the combination of the enclosing plate 1 and the liquid cooling bottom plate 2 is completed. And then the splicing part of the enclosing plate 1 and the liquid cooling bottom plate 2 is connected by friction stir welding to complete the splicing work of the enclosing plate 1 and the liquid cooling bottom plate 2 (as shown in figure 4).
After the enclosing plate 1 and the liquid cooling bottom plate 2 are assembled, the front enclosing plate 4 is welded to the position, close to the front end, of the assembled body through arc welding, the front enclosing plate is made of 6061-T6 aluminum alloy extruded section, and the integrated liquid cooling standard battery B box lower box body shown in the figure 1 is obtained.
As shown in fig. 5 to 7, the entire coolant flow channel is composed of the back plate 101, the bottom plate 201 and the blocking plate 203. The coolant liquid flows into the runner from one of the liquid inlet and outlet connectors 202, flows in the cavity inside the bottom plate 201 in a snake shape, fully exchanges heat with the contact part of the battery module on the upper side of the bottom plate 201, and finally flows out of the runner from the other liquid inlet and outlet connector 202 to cool the battery module on the upper side.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on 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 claims of the present invention.
Claims (6)
1. The utility model provides a box under integrated form standard cell B case, a serial communication port, including the bounding wall, the assembly is at inboard liquid cooling bottom plate of bounding wall and preceding bounding wall, the bounding wall is by left bounding wall, right side bounding wall and back panel enclose to close and form, the liquid cooling bottom plate includes two and two cavity bottom plates more than, two assemblies are kept away from back panel one end tip at the bottom plate and are connected and peg graft closure plate in bottom plate one end tip recess with the communicating business turn over liquid of bottom plate, insert the back panel in the bottom plate other end recess, along the even fixed mounting of length direction there is the picture peg in the bottom plate, the clearance is left in turn with the bottom plate tip to the picture peg, preceding bounding wall assembly is at business turn over liquid.
2. The integrated standard battery B box lower box body as claimed in claim 1, wherein two or more corresponding lifting lugs are fixedly arranged on the outer sides of the left enclosing plate and the right enclosing plate.
3. The integrated lower box body of the standard battery B box as claimed in claim 1, wherein the back panel is L-shaped, and the boss part of the back panel is inserted into the groove of the bottom plate.
4. The integrated bottom case of standard battery B case of claim 1, wherein the adjacent bottom plates are fixed by welding.
5. The integrated lower box body of the standard battery box B as claimed in claim 1, wherein the end of the bottom plate is provided with a jack, and the liquid inlet and outlet joint is inserted into the jack of the bottom plate.
6. The integrated standard battery B box lower box body as claimed in claim 1, wherein the edges provided with the threaded holes are integrally formed on the outer sides of the left enclosing plate and the right enclosing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010762853.4A CN111799421A (en) | 2020-07-31 | 2020-07-31 | Integrated lower box body of standard battery B box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010762853.4A CN111799421A (en) | 2020-07-31 | 2020-07-31 | Integrated lower box body of standard battery B box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111799421A true CN111799421A (en) | 2020-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010762853.4A Pending CN111799421A (en) | 2020-07-31 | 2020-07-31 | Integrated lower box body of standard battery B box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111799421A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178640A (en) * | 2021-04-26 | 2021-07-27 | 北京天启鸿源新能源科技有限公司 | Energy storage battery constant temperature device and method |
| CN113178641A (en) * | 2021-04-28 | 2021-07-27 | 北京天启鸿源新能源科技有限公司 | Water circulation battery constant temperature equipment |
| CN113381090A (en) * | 2021-04-29 | 2021-09-10 | 无锡威唐新能源科技有限公司 | Integrated liquid cooling battery package lower box |
| CN113523537A (en) * | 2021-08-04 | 2021-10-22 | 重庆新铝时代科技股份有限公司 | Battery case flow channel partition welding process based on harmonica-shaped section bar |
| CN113710031A (en) * | 2021-08-30 | 2021-11-26 | 无锡格林沃科技有限公司 | Mainboard control box outer body device and preparation method thereof |
| CN113782884A (en) * | 2021-09-16 | 2021-12-10 | 远景能源有限公司 | Battery pack box and battery pack |
-
2020
- 2020-07-31 CN CN202010762853.4A patent/CN111799421A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178640A (en) * | 2021-04-26 | 2021-07-27 | 北京天启鸿源新能源科技有限公司 | Energy storage battery constant temperature device and method |
| CN113178641A (en) * | 2021-04-28 | 2021-07-27 | 北京天启鸿源新能源科技有限公司 | Water circulation battery constant temperature equipment |
| CN113381090A (en) * | 2021-04-29 | 2021-09-10 | 无锡威唐新能源科技有限公司 | Integrated liquid cooling battery package lower box |
| CN113381090B (en) * | 2021-04-29 | 2024-04-16 | 无锡威唐新能源科技有限公司 | Lower box body of integrated liquid cooling battery pack |
| CN113523537A (en) * | 2021-08-04 | 2021-10-22 | 重庆新铝时代科技股份有限公司 | Battery case flow channel partition welding process based on harmonica-shaped section bar |
| CN113710031A (en) * | 2021-08-30 | 2021-11-26 | 无锡格林沃科技有限公司 | Mainboard control box outer body device and preparation method thereof |
| CN113710031B (en) * | 2021-08-30 | 2023-08-11 | 无锡格林沃科技有限公司 | Main board control box outer body device and preparation method thereof |
| CN113782884A (en) * | 2021-09-16 | 2021-12-10 | 远景能源有限公司 | Battery pack box and battery pack |
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