CN115708247A - Battery pack and vehicle - Google Patents
Battery pack and vehicle Download PDFInfo
- Publication number
- CN115708247A CN115708247A CN202110965635.5A CN202110965635A CN115708247A CN 115708247 A CN115708247 A CN 115708247A CN 202110965635 A CN202110965635 A CN 202110965635A CN 115708247 A CN115708247 A CN 115708247A
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- Prior art keywords
- wedge
- tray
- wall
- battery pack
- wall surface
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application discloses battery package belongs to vehicle technical field. The battery pack comprises a tray, a battery cell and a mounting assembly, wherein a containing cavity is formed in the tray, the battery cell is arranged in the containing cavity, a gap is formed between the battery cell and the side wall in the tray, and the mounting assembly is connected with the tray; the mounting assembly comprises a fixing piece, a pressing plate and a wedge-shaped structure, the fixing piece is detachably connected with the tray, the fixing piece penetrates through the pressing plate, the pressing plate presses the wedge-shaped structure, and the wedge-shaped structure is at least partially filled in the gap. The embodiment of this application has fixed electric core, restricts electric core inflation, improves battery package structural reliability, improves battery cycle life's beneficial effect.
Description
Technical Field
The application belongs to the technical field of vehicles, and particularly relates to a battery pack and a vehicle.
Background
The battery pack is a core energy source of the new energy automobile, provides driving current for the automobile and is an indispensable component in the new energy automobile.
At present, when the battery pack is assembled with a vehicle, a module-free scheme is generally adopted, and for the module-free scheme battery pack, an electric core is directly arranged in a battery pack tray, and structures such as an insulating plate or a supporting plate need to be added between the electric core and the inner wall of the tray for insulation, so that the electric core is protected and meanwhile the gap between the electric core and the inner wall of the tray is filled.
However, even with the support plate, the gap between the cell and the tray cannot be completely filled, resulting in insufficient cell large-area support.
Disclosure of Invention
The purpose of the embodiment of the application is to provide a battery package and vehicle, can solve among the prior art battery package electric core large face support not enough, can't restrict the expanded problem of electric core.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a battery pack, where the battery pack includes: the battery cell structure comprises a tray, a battery cell and a mounting assembly, wherein a containing cavity is formed in the tray, the battery cell is arranged in the containing cavity, a gap is formed between the battery cell and the side wall in the tray, and the mounting assembly is connected with the tray;
the mounting assembly comprises a wedge-shaped structure and a pressing mechanism, the wedge-shaped structure is connected or abutted to the pressing mechanism, the wedge-shaped structure is at least partially filled in the gap, the pressing mechanism is detachably connected with the tray, and the pressing mechanism is used for adjusting the filling depth of the wedge-shaped structure. .
In a second aspect, the present application provides a vehicle, including the battery pack as described above, the battery pack being installed in an interior of the vehicle.
In this application embodiment, the setting of tray is used for placing electric core, and electric core places the intracavity that holds on the tray, because the existence of electric core dimensional tolerance, electric core stack tolerance and tray pure tolerance to and the technological limit that the tray was put into to electric core, the lateral wall that holds the chamber has certain clearance between the electric core, because electric core with hold the unable butt of intracavity wall, consequently, hold the chamber lateral wall and be difficult to retrain by a large scale and support electric core. The mounting assembly is used for filling the gap, is connected with the tray and provides large-area restraint and supporting force for the battery cell through the mounting assembly. The mounting is connected with the tray with the detachable mode, and the mounting wears to locate the clamp plate, and the clamp plate compresses tightly the wedge structure, and the wedge structure is used for retraining electric core, and after filling electric core got into and holds the chamber, electric core and holding have certain clearance between the intracavity wall, fill the wedge structure in above-mentioned clearance, through the adaptable different clearance size of screw in volume of control mounting, can hug closely electric core until the wedge structure, for electric core provides big face restraint and support. In this application embodiment, the screw in volume through the control mounting makes the wedge structure provide big face restraint and support for electric core, has fixed electric core, restricts electric core inflation, improves battery package structural reliability, improves battery cycle life's beneficial effect.
Drawings
Fig. 1 is an exploded view of a battery pack having four cells in an embodiment of the present application;
fig. 2 is an exploded view of a battery pack having two battery cells according to an embodiment of the present disclosure;
fig. 3 is an external view of a battery pack in an embodiment of the present application;
fig. 4 is a schematic structural view of a prior art battery pack without a mounting assembly;
fig. 5 is a top view of a battery pack having four cells in an embodiment of the present application (with an upper cover removed);
fig. 6 is a top view of a battery pack having two battery cells in an embodiment of the present application (with an upper cover removed);
fig. 7 is an interface diagram of a battery pack (with the upper cover removed) in an embodiment of the present application;
FIG. 8 is a schematic structural view of a wedge-shaped structure in an embodiment of the present application;
FIG. 9 is a schematic structural view of a wedge-shaped structure with air vents in an embodiment of the present application;
FIG. 10 is a cross-sectional view of a wedge-shaped structure in an embodiment of the present application;
FIG. 11 is a schematic view of a platen according to an embodiment of the present application;
FIG. 12 is a schematic view of another platen in the embodiment of the present application;
fig. 13 is a partial cross-sectional view of a prior art battery pack without a mounting assembly;
FIG. 14 is a partial cross-sectional view of the wedge structure of the present application prior to locking;
FIG. 15 is a partial cross-sectional view of the wedge structure of the present application after locking;
FIG. 16 is another partial cross-sectional view of the wedge structure of the present application embodiment prior to locking;
figure 17 is another partial cross-sectional view of the wedge structure of the present application after locking.
Description of reference numerals:
10. a tray; 11. dividing the structure; 12. a chamber; 20. an electric core; 30. mounting the component; 31. a fixing member; 32. pressing a plate; 33. a wedge-shaped structure; 331. a yielding groove; 332. a wedge-shaped housing; 333. a reinforcing plate; 3321. a first wall surface; 3322. a second wall surface; 3323. a third wall surface; 3324. a fourth wall surface; 33221. an exhaust hole; 321. a pressing part; 322. a reinforcing portion.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application are capable of operation in sequences other than those illustrated or described herein, and that the terms "first," "second," etc. are generally used in a generic sense and do not limit the number of terms, e.g., a first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.
The battery pack and the vehicle provided by the embodiment of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 17 (excluding fig. 4 and 13), an embodiment of the present application provides a battery pack including: the battery tray comprises a tray 10, a battery cell 20 and a mounting assembly 30, wherein a containing cavity is formed in the tray 10, the battery cell 20 is arranged in the containing cavity, a gap is formed between the battery cell 20 and the side wall in the tray 10, and the mounting assembly 30 is connected with the tray 10;
the mounting assembly 30 comprises a wedge-shaped structure 33 and a pressing mechanism, wherein the wedge-shaped structure 33 is connected or abutted with the pressing mechanism, the wedge-shaped structure 33 is at least partially filled in the gap, the pressing mechanism is detachably connected with the tray 10, and the pressing mechanism is used for adjusting the filling depth of the wedge-shaped structure 33).
In this application embodiment, the setting of tray 10 is used for placing electric core 20, and the intracavity that holds is placed on tray 10 to electric core 20, because the existence of electric core 20 dimensional tolerance, electric core 20 stack tolerance and tray 10 pure tolerance to and the technological limitation that tray 10 was put into to electric core 20, certain clearance has between lateral wall and the electric core 20 that holds the chamber, because electric core 20 with hold the unable butt of intracavity wall, consequently, it is difficult to retrain by a large scale and support electric core 20 to hold the chamber lateral wall. The mounting assembly 30 is used to fill the gap, and the mounting assembly 30 is connected to the tray 10, so that the mounting assembly 30 provides a large area of restraint and support force for the battery cell 20.
Further, hold-down mechanism is connected with the tray 10 with the detachable mode, and hold-down mechanism compresses tightly wedge structure 33, wedge structure 33 is used for retraining electric core 20, fill electric core 20 and get into and hold the chamber after, electric core 20 with hold and have certain clearance between the intracavity wall, fill wedge structure 33 in above-mentioned clearance, the degree of depth through hold-down mechanism control wedge structure 33 packing clearance, electric core 20 can be hugged closely until wedge structure 33, and then extrude electric core 20 through wedge structure 33, for electric core 20 provides big face restraint and support, make electric core 20 be difficult to rock. In this application embodiment, through hold-down mechanism control wedge structure 33's filling depth, and then for electric core 20 provides big face restraint and support, have fixed electric core 20, restrict electric core 20 inflation, improve battery package structural reliability, improve battery cycle life's beneficial effect.
It should be noted that the fixing members 31 and the pressing plate 32 on the same wedge-shaped structure 33 are independent from each other, and the amount of screwing of each fixing member 31 can be controlled separately to adapt to the uneven gap.
It should be further noted that the constraint force of the wedge-shaped structure 33 on the battery cell 20 is directly related to the screwing amount of the fixing member 31, and the initial constraint force of the wedge-shaped structure 33 on the battery cell 20 can be controlled by controlling the screwing amount of the fixing member 31.
Optionally, the wedge structure 33 has a wedge surface, the wedge surface abuts against an inner wall of the tray 10, and the abutting position of the tray 10 against the wedge surface is an inclined surface.
In this embodiment of the application, due to the existence of the wedge-shaped surface, the wedge-shaped structure 33 is extruded by the pressing plate 32 to move in the accommodating cavity, and simultaneously, the wedge-shaped structure 33 also moves in the direction of the battery cell 20 along the bottom direction of the tray 10, so that the battery cell 20 is continuously extruded by the wedge-shaped structure 33, and the extrusion force is larger and larger, thereby realizing the constraint on the battery cell 20. When the wedge-shaped structures 33 fill the gaps and have a certain extrusion force, the wedge surfaces of the wedge-shaped structures 33 are abutted against the inner wall of the tray 10, and the positions where the tray 10 is abutted against the wedge surfaces are matched with the wedge surfaces. In this embodiment of the application, the inner wall of the tray 10 is matched with the wedge-shaped surface, so as to fix the electrical core 20, improve the constraint force on the electrical core 20, and enhance the reliability.
Optionally, a partition structure 11 is disposed in the accommodating cavity, and the partition structure 11 divides the accommodating cavity into at least two cavities 12;
the split structure 11 abuts against the wedge-shaped structure 33, and the abutting position of the split structure 11 against the wedge-shaped surface is an inclined surface.
In the embodiment of the present application, the dividing structure 11 is used to divide the accommodating cavity into a plurality of cavities 12 to meet the assembly requirements of different schemes of the battery cells 20. When the accommodating cavity has the dividing structure 11 therein, the battery cell 20 will be disposed between the dividing structure 11 and the inner wall of the tray 10, and the wedge-shaped structure 33 is disposed between the inner wall of the tray 10 and the battery cell 20 and between the dividing structure 11 and the battery cell 20. The wedge-shaped structure 33 is in contact with the partition structure 11 at a wedge-shaped surface, and the partition structure 11 is in contact with the wedge-shaped surface at an inclined surface, which is matched with the inclined surface. In this application embodiment, cut apart the position looks adaptation of the inclined plane and the wedge butt of structure 11, have fixed electric core 20, improve the power of restrainting to electric core 20 to and the beneficial effect of reinforcing reliability.
It should be noted that, in practical applications, the assembly requirements of different schemes of the battery cells 20 may be to assemble 2 battery cells 20 in the accommodating cavity, or to assemble 4 battery cells 20 in the accommodating cavity, or to assemble other number of battery cells 20, where the different number of battery cells 20 may have the corresponding number of cavities 12, and this embodiment is not limited in any way.
Optionally, the pressing mechanism includes a fixing member 31 and a pressing plate 32, the fixing member 31 is a screw; the wedge-shaped structure 33 is provided with a yielding groove 331 at the matching position of the pressing plate 32, and the pressing plate 32 is at least partially positioned in the yielding groove 331.
In this application embodiment, mounting 31 is connected with the tray 10 with the detachable mode, and mounting 31 wears to locate clamp plate 32, clamp plate 32 compresses tightly wedge structure 33, wedge structure 33 is used for retraining electric core 20, fill electric core 20 and get into and hold the chamber after, electric core 20 with hold and have certain clearance between the intracavity wall, fill wedge structure 33 in above-mentioned clearance, the adaptable different clearance size of screw in volume through control mounting 31, electric core 20 can be hugged closely until wedge structure 33, and then extrude electric core 20 through wedge structure 33, for electric core 20 provides big face restraint and support, make electric core 20 be difficult to rock.
The abdicating groove 331 is used for placing and positioning the pressing plate 32, limits the movement of the pressing plate 32 within a certain range, and the abdicating groove 331 is grooved from the inclined surface and extends to the surface of the wedge-shaped structure 33 opposite to the inclined surface, and the abdicating groove 331 can be a through groove arranged on the wedge-shaped structure 33 or a clamping groove arranged on the wedge-shaped structure 33. A part of the pressing plate 32 is placed in the receding groove 331, another part of the pressing plate 32 is located outside the receding groove 331, and the pressing plate 32 is at least partially located between the fixing member 31 and the tray 10.
It should be noted that the fixing member 31 may be a bolt and a screw, and when the fixing member 31 is a screw, a nut on the screw is used for pressing the pressing plate 32, so as to adjust the filling depth of the wedge-shaped structure 33. The pressing mechanism can also be a buckle and an elastic clamping structure, and the effect of pressing the wedge-shaped plate is realized by respectively connecting the pressing mechanism with the wedge-shaped plate and the tray, and the embodiment does not limit the application.
It should be further noted that the wedge-shaped structure 33 is provided with at least two receding grooves 331, and the two receding grooves 331 are arranged at intervals.
Optionally, the wedge-shaped structure 33 is a hollow structure, the wedge-shaped structure 33 includes a wedge housing 332 and a reinforcing plate 333, the wedge housing 332 encloses a wedge-shaped cavity, and the reinforcing plate 333 is disposed in the wedge-shaped cavity;
the wedge-shaped shell 332 comprises a first wall surface 3321, a second wall surface 3322, a third wall surface 3323 and a fourth wall surface 3324, wherein the first wall surface 3321 and the second wall surface 3322 are arranged oppositely, and a preset included angle is formed between the first wall surface 3321 and the second wall surface 3322; the third wall 3323 and the fourth wall 3324 are opposite to each other, and the third wall 3323 and the fourth wall 3324 are parallel to each other;
wherein the third wall 3323 abuts against the pressure plate 32.
In the embodiment of the present application, the wedge-shaped casing 332 is an outer surface of the wedge-shaped structure 33, and is configured to abut against the battery cell 20 and the tray 10, the wedge-shaped casing 332 is a hollow structure, a reinforcing plate 333 is disposed inside the hollow structure, and the reinforcing plate 333 is configured to increase strength of the wedge-shaped casing 332. The first wall surface 3321 is an inclined surface, the first wall surface 3321 is used for abutting against the inner wall of the tray 10 and the partition structure 11, the second wall surface 3322 is a vertical plane, the second surface is used for abutting against the battery cell 20, the first wall surface 3321 and the second wall surface 3322 intersect to form a preset included angle, the third wall surface 3323 and the fourth wall surface 3324 are parallel to each other, the wedge-shaped shell 332 is formed by enclosing the first wall surface 3321, the second wall surface 3322, the third wall surface 3323 and the fourth wall surface 3324, the cross section of the wedge-shaped shell 332 is in a right trapezoid shape or a right acute angle triangle shape, and when the fixing member 31 is screwed into the wedge-shaped structure 33, the third wall surface 3323 is a pressing surface of the pressing plate 32. In the embodiment of the present application, the hollow wedge-shaped structure 33 provided with the reinforcing plate 333 reduces the weight of the wedge-shaped structure 33 while satisfying the predetermined strength, which has the advantageous effect of reducing the weight of the battery pack.
It should be noted that the wedge-shaped structure 33 is generally an aluminum extrusion, and may also be a plastic component, which is not limited in this embodiment.
Optionally, a rectangular cavity is disposed on the third wall 3323, and the rectangular cavity is located on a side of the third wall 3323 facing away from the fourth wall 3324;
at least one abdicating groove 331 is formed in the rectangular cavity, and the pressing plate 32 is located in the abdicating groove 331 and abuts against the third wall 3323.
In the embodiment of the present application, the rectangular cavity is used to form the avoiding groove 331, a bottom surface of the avoiding groove 331 coincides with the third wall 3323, and the avoiding groove 331 is disposed on a side of the third wall 3323 away from the fourth wall 3324.
It should be noted that the rectangular cavity may be a structure integrally formed with the wedge-shaped structure 33, or a structure fixedly connected with the wedge-shaped structure 33, which is not limited in this embodiment,
optionally, the first wall 3321 is inclined with respect to the second wall 3322, and the second wall 3322 is provided with at least one exhaust hole 33221.
In this application embodiment, set up the wedge structure 33 of exhaust hole 33221 and be used for retraining the side that explosion-proof valve was treated to electric core 20, set up the wedge structure 33 of exhaust hole 33221 and be used for when electric core 20 thermal runaway opens the valve, lead the exhaust effect to high-temperature gas, avoid electric core 20 overheated emergence incident. In the embodiment of the application, the battery cell 20 provided with the exhaust hole 33221 can timely remove high-temperature gas, and has the beneficial effect of enhancing the use safety of the battery cell 20.
It should be noted that the exhaust hole 33221 may be circular, oval or polygonal, which is not limited in this embodiment.
It should be noted that the two exhaust holes 33221 are spaced apart from each other, and the exhaust holes 33221 may be uniformly disposed on the second wall 3322 or non-uniformly disposed on the second wall 3322, which is not limited in this embodiment.
Optionally, the pressing plate 32 includes a pressing portion 321 and a reinforcing portion 322, the pressing portion 321 is connected to the reinforcing portion 322, and the pressing portion 321 abuts against the wedge structure 33.
In the embodiment of the present application, when the fixing member 31 is screwed into the wedge-shaped structure 33, the pressing plate 32 pushes the wedge-shaped structure 33 to move downward, the pressing portion 321 abuts against the third wall 3323, the pressing portion 321 and the reinforcing portion 322 are integrally formed, and the reinforcing portion 322 abuts against two sides of the receding groove 331, so that the strength of the pressing plate 32 is increased while the receding groove 331 is prevented from being damaged. The reinforcement 322 may be a flanging structure, a ribbed structure, or other structure of the reinforcement 322.
It should be noted that the pressing plate 32 may be a stamped sheet metal part or a machined metal block, which is not limited in this embodiment.
It should be further noted that the pressing plate 32 may be a pressing plate 32 that fixes one wedge-shaped structure 33, or may be a pressing plate 32 that fixes two wedge-shaped structures 33 at the same time, which is not limited in this embodiment.
Optionally, two reinforcing parts 322 are provided, and the two reinforcing parts 322 are respectively located at two opposite sides of the pressing part 321.
In the embodiment of the present application, two reinforcing parts 322 may have a flanged structure, may be formed by bending two sides of the pressing part 321, the reinforcing part 322 may be perpendicular to the pressing part 321, and corner positions of the reinforcing part 322 and the pressing part 321 are rounded.
An embodiment of the present application further provides a vehicle, including the above-mentioned battery package, the battery package set up in the inside of vehicle.
In the embodiment of the application, the vehicle with the battery pack improves the structure of the battery pack on the premise of ensuring that the vehicle uses the battery pack as a power source, so that the wedge-shaped structure 33 can be ensured to be tightly attached to the battery cell 20 by controlling the screwing amount of the fixing member 31 in a certain clearance range, and a certain constraint force is provided for the battery cell 20; moreover, the screwing amount of each fixing piece 31 is controlled to adapt to the condition of uneven gaps through the respective independent structural characteristics of the fixing piece 31 and the pressing plate 32 on the same wedge-shaped structure 33, and meanwhile, the initial binding force of the wedge-shaped structure 33 on the battery cell 20 can be controlled through controlling the torque of the bolt. In the embodiment of the application, the amount of screwing in through the control fixing piece 31 enables the wedge-shaped structure 33 to provide large-area constraint and support for the battery cell 20, so that the battery cell has the advantages of fixing the battery cell, limiting the expansion of the battery cell, improving the structural reliability of the battery pack, improving the cycle life of the battery and improving the safety of a vehicle.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (10)
1. A battery pack, comprising: the battery tray comprises a tray (10), a battery cell (20) and a mounting assembly (30), wherein a containing cavity is formed in the tray (10), the battery cell (20) is arranged in the containing cavity, a gap is formed between the battery cell (20) and the side wall in the tray (10), and the mounting assembly (30) is connected with the tray (10);
the mounting assembly (30) comprises a wedge-shaped structure (33) and a pressing mechanism, the wedge-shaped structure (33) is connected with or abutted against the pressing mechanism, the wedge-shaped structure (33) is at least partially filled in the gap, the pressing mechanism is detachably connected with the tray (10), and the pressing mechanism is used for adjusting the filling depth of the wedge-shaped structure (33).
2. The battery pack according to claim 1, wherein the wedge structure (33) has a wedge surface thereon, the wedge surface abuts against an inner wall of the tray (10), and the abutting position of the tray (10) against the wedge surface is a slope.
3. The battery pack according to claim 1, wherein a partition structure (11) is provided in the receiving cavity, the partition structure (11) dividing the receiving cavity into at least two chambers (12);
the split structure (11) is abutted against the wedge-shaped structure (33), and the abutting position of the split structure (11) and the wedge-shaped surface is an inclined surface.
4. A battery pack according to claims 1-3, wherein the compression mechanism comprises a fixing member (31) and a pressure plate (32), the fixing member (31) being a screw;
the wedge structure (33) with the cooperation position of clamp plate (32) is provided with and gives way groove (331), clamp plate (32) are at least partly in give way the inslot (331).
5. The battery pack of claim 4, wherein the wedge structure (33) is a hollow structure, the wedge structure (33) comprising a wedge housing (332) and a reinforcement plate (333), the wedge housing (332) enclosing a wedge cavity, the reinforcement plate (333) being disposed within the wedge cavity;
the wedge-shaped shell (332) comprises a first wall surface (3321), a second wall surface (3322), a third wall surface (3323) and a fourth wall surface (3324), the first wall surface (3321) and the second wall surface (3322) are oppositely arranged, and the first wall surface (3321) and the second wall surface (3322) form a preset included angle; the third wall surface (3323) and the fourth wall surface (3324) are arranged oppositely, and the third wall surface (3323) and the fourth wall surface (3324) are parallel;
wherein the third wall surface (3323) abuts against the pressure plate (32).
6. The battery pack according to claim 5, wherein a rectangular cavity is provided in the third wall (3323) on a side of the third wall (3323) facing away from the fourth wall (3324);
at least one yielding groove (331) is formed in the rectangular cavity, and the pressing plate (32) is located in the yielding groove (331) and abuts against the third wall (3323).
7. The battery pack of claim 5, wherein the first wall (3321) is beveled relative to the second wall (3322), and the second wall (3322) defines at least one vent hole (33221).
8. Battery pack according to claim 6, characterized in that the pressure plate (32) comprises a pressing part (321) and a reinforcement part (322), the pressing part (321) being connected with the reinforcement part (322), the pressing part (321) abutting the wedge-shaped structure (33).
9. The battery pack according to claim 8, wherein the reinforcing part (322) is provided in two, and the two reinforcing parts (322) are respectively located at opposite sides of the pressing part (321).
10. A vehicle characterized by comprising the battery pack according to any one of claims 1 to 9, which is disposed in the interior of the vehicle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965635.5A CN115708247A (en) | 2021-08-19 | 2021-08-19 | Battery pack and vehicle |
| PCT/CN2022/102912 WO2023020128A1 (en) | 2021-08-19 | 2022-06-30 | Battery pack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110965635.5A CN115708247A (en) | 2021-08-19 | 2021-08-19 | Battery pack and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115708247A true CN115708247A (en) | 2023-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110965635.5A Pending CN115708247A (en) | 2021-08-19 | 2021-08-19 | Battery pack and vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115708247A (en) |
| WO (1) | WO2023020128A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019118849A1 (en) * | 2017-12-15 | 2019-06-20 | Johnson Controls Technology Company | Hold-down assembly and device for a battery |
| WO2019171469A1 (en) * | 2018-03-06 | 2019-09-12 | 本田技研工業株式会社 | Battery pack |
| DE102018205896A1 (en) * | 2018-04-18 | 2019-10-24 | Volkswagen Aktiengesellschaft | "Battery module and battery arrangement" |
| CN212392341U (en) * | 2020-06-09 | 2021-01-22 | 比亚迪股份有限公司 | Battery pack and vehicle |
| CN212303810U (en) * | 2020-06-09 | 2021-01-05 | 比亚迪股份有限公司 | Battery pack and vehicle |
| CN212848697U (en) * | 2020-08-21 | 2021-03-30 | 山西大运盟固利新能源科技有限公司 | Device for fixing soft-packaged battery cell |
-
2021
- 2021-08-19 CN CN202110965635.5A patent/CN115708247A/en active Pending
-
2022
- 2022-06-30 WO PCT/CN2022/102912 patent/WO2023020128A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023020128A1 (en) | 2023-02-23 |
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