CN210403873U - Battery module, battery pack and device - Google Patents
Battery module, battery pack and device Download PDFInfo
- Publication number
- CN210403873U CN210403873U CN202020396840.5U CN202020396840U CN210403873U CN 210403873 U CN210403873 U CN 210403873U CN 202020396840 U CN202020396840 U CN 202020396840U CN 210403873 U CN210403873 U CN 210403873U
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- battery pack
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- 239000000178 monomer Substances 0.000 claims abstract description 46
- 238000010586 diagram Methods 0.000 description 12
- 239000012212 insulator Substances 0.000 description 8
- 238000002955 isolation Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The embodiment of the utility model provides a battery module, group battery and device, battery module includes: a battery cell; the first insulating piece is arranged at one end of the battery monomer; the second insulating part is arranged at the other end of the battery monomer; and the bracket is positioned between the first insulating part and the second insulating part and is used for being connected with the battery monomer so as to limit the position of the battery monomer from deviating. The embodiment of the utility model provides a can effectively improve battery module's security performance.
Description
Technical Field
The utility model relates to an energy storage equipment technical field especially relates to a battery module, group battery and device.
Background
With the continuous development of the technology, people have higher and higher requirements on new energy batteries. The technical field of new energy battery grouping, in particular to the technical field of cylindrical battery grouping, generally, a plurality of cylindrical batteries are arranged side by side to form a group. The cylindrical battery is too long, so that the cylindrical battery is very easy to vibrate in the using process, and potential safety hazards can be caused by shaking of the cylindrical battery.
Therefore, a new battery module, battery pack and device are needed.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a battery module, group battery and device aims at improving battery module's security performance.
In one aspect, an embodiment of the present invention provides a battery module, including: a battery cell; the first insulating piece is arranged at one end of the battery monomer; the second insulating part is arranged at the other end of the battery monomer; and the bracket is positioned between the first insulating part and the second insulating part and is used for being connected with the battery monomer so as to limit the position of the battery monomer from deviating.
According to the utility model discloses an aspect, the support includes spacing portion, spacing portion and the free outer wall looks butt of battery to the skew takes place for restriction battery free position.
According to the utility model discloses an aspect, spacing portion includes spacing hole, and the battery monomer cover is located spacing hole and with the internal face looks butt in spacing hole.
According to the utility model discloses an aspect, spacing portion includes the spacing groove, and at least partial battery monomer is located the spacing groove and with the internal face looks butt of spacing groove.
According to the utility model discloses an aspect, spacing portion includes the bracing piece, and the outer terminal surface looks butt of battery monomer and bracing piece.
According to an aspect of the present invention, the stopper portion is in surface-to-surface contact with the battery cell.
According to the utility model discloses an aspect, battery monomer and spacing portion all are provided with a plurality ofly, and every battery monomer sets up with the spacing cooperation that corresponds.
According to the utility model discloses an aspect, the support still includes connecting portion, and connecting portion are used for connecting two adjacent spacing portions.
According to the utility model discloses a sideSurface, height H of the limiting part along the height direction of the battery cell1Height L from battery cell1The ratio of the components satisfies: h1：L1=1：20~1：4。
According to one aspect of the present invention, the distance from the bracket to the first insulating member is greater than the distance from the bracket to the second insulating member in the height direction of the battery cell;
or the distance from the bracket to the second insulating part is greater than the distance from the bracket to the first insulating part.
On the other hand, the embodiment of the present invention further provides a battery pack, including the above battery module; and a housing having an accommodating chamber in which the battery module is disposed.
According to an aspect of the utility model, the support still includes the portion of supporting, supports the portion of supporting and the internal face looks butt of casing.
According to the utility model discloses an aspect, the casing has top cap, bottom plate and connects the curb plate between top cap and bottom plate, and top cap, bottom plate and curb plate are used for enclosing to close and form and hold the chamber, and at least part first insulating part is located between top cap and the battery monomer, and at least part second insulating part is located between bottom plate and the battery monomer.
In another aspect, the embodiment of the present invention further provides an apparatus, which includes the above battery pack, and the battery pack is used for providing electric energy.
The utility model provides an among the battery module, battery module includes battery monomer, first insulator, second insulator and support. First insulating part and second insulating part set up respectively in the free both ends of battery, and the support is located between first insulating part and the second insulating part, and the support sets up between the free both ends of battery promptly. The support is connected with the battery monomer and can provides spacingly to the battery monomer, prevents that the battery monomer from taking place the skew, and the support provides spacingly to the battery monomer between the battery monomer both ends promptly, can prevent effectively that the battery monomer from taking place the vibration in the use, can avoid between a plurality of battery monomers, the collision between the casing of battery monomer and group battery, and then can avoid because the potential safety hazard that the battery monomer vibration brought. Consequently the embodiment of the utility model provides a can effectively improve battery module's security performance.
Drawings
Other features, objects and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like or similar reference characters identify the same or similar features.
Fig. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a battery module according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the exploded structure of FIG. 3;
FIG. 5 is a partial cross-sectional view taken at A-A in FIG. 2;
fig. 6 is a schematic structural diagram of a battery cell and a bracket in a battery module according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a bracket in a battery module according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a bracket in a battery module according to another embodiment of the present invention;
fig. 9 is a schematic structural diagram of a bracket in a battery module according to another embodiment of the present invention;
fig. 10 is a schematic structural diagram of a bracket in a battery module according to still another embodiment of the present invention.
Description of reference numerals:
1. a battery pack; 11. a battery module; 12. a housing; 12a, a top cover; 12b, a bottom plate; 12c, side plates; 2. a vehicle main body;
100. a battery cell;
200. a first insulating member;
300. a second insulating member;
400. a support; 410. a limiting part; 411. a limiting surface; 412. a limiting hole; 413. a limiting groove; 414. a support bar; 420. A connecting portion; 430. an abutting portion; 440. the main pole.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships only for convenience in describing the present invention and to simplify the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
For a better understanding of the present invention, the battery module, the battery pack, and the device according to the embodiments of the present invention will be described in detail below with reference to fig. 1 to 10.
As shown in fig. 1, the embodiment of the present invention firstly provides a vehicle including a vehicle body 2 and a battery pack 1 provided in the vehicle body 2.
Wherein, the vehicle is new energy automobile, and it can be pure electric automobile, also can hybrid vehicle or increase form car. The vehicle main body 2 is provided with a driving motor, the driving motor is electrically connected with the battery pack 1, the battery pack 1 provides electric energy, and the driving motor is connected with wheels on the vehicle main body 2 through a transmission mechanism so as to drive the automobile to move forward. Preferably, the battery pack 1 may be horizontally disposed at the bottom of the vehicle body 2.
It is understood that the battery pack 1 can be applied not only to new energy vehicles, but also to two-wheeled vehicles, such as electric bicycles, electric motorcycles, and the like, and can be applied to other devices, including but not limited to ships, energy storage cabinets, aircrafts, and the like, and the battery pack 1 is used for providing electric energy.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a battery pack 1 according to an embodiment of the present invention, in some optional embodiments, the battery pack 1 includes a housing 12 having a containing cavity and a battery module 11 disposed in the containing cavity.
The number of the battery modules 11 is one or more, and a plurality of the battery modules 11 are arranged in the housing 12. The type of the housing 12 is not limited, and the housing 12 may be a frame-shaped box, a disc-shaped box, a box-shaped box, or the like.
The battery module 11 can be arranged in various ways, please refer to fig. 3 and fig. 4 together, fig. 3 is a schematic structural diagram of the battery module 11 according to an embodiment of the present invention, and fig. 4 is a schematic structural diagram of fig. 3.
In some alternative embodiments, the battery module 11 includes: a battery cell 100; a first insulating member 200 disposed at one end of the battery cell 100; a second insulating member 300 disposed at the other end of the battery cell 100; and a bracket 400, wherein the bracket 400 is positioned between the first insulating member 200 and the second insulating member 300, and the bracket 400 is used for being connected with the battery cell 100 to limit the position of the battery cell 100 from being deviated.
In the battery module 11 of the embodiment of the present invention, the battery module 11 includes the battery cell 100, the first insulating member 200, the second insulating member 300, and the bracket 400. The first insulating member 200 and the second insulating member 300 are respectively disposed at both ends of the battery cell 100, and the bracket 400 is located between the first insulating member 200 and the second insulating member 300, that is, the bracket 400 is disposed between both ends of the battery cell 100. Support 400 is connected with battery monomer 100 and can provides spacingly to battery monomer 100, prevents that battery monomer 100 from taking place the skew, and support 400 provides spacingly to battery monomer 100 between battery monomer 100 both ends promptly, can prevent effectively that battery monomer 100 from taking place the vibration in the use, can avoid between a plurality of battery monomers 100, the collision between battery monomer 100 and the casing 12 of group battery 1, and then can avoid because the potential safety hazard that battery monomer 100 vibration and bring. Therefore, the embodiment of the utility model provides a can effectively improve battery module 11's security performance.
In some alternative embodiments, the housing 12 has a top cover 12a, a bottom plate 12b and a side plate 12c connected between the top cover 12a and the bottom plate 12b, the top cover 12a, the bottom plate 12b and the side plate 12c are used for enclosing to form a containing cavity, at least a part of the first insulating member 200 is located between the top cover 12a and the battery unit 100, and at least a part of the second insulating member 300 is located between the bottom plate 12b and the battery unit 100.
The first insulating member 200 and the second insulating member 300 are disposed in various manners, and in some alternative embodiments, the first insulating member 200 is, for example, an upper isolation plate, and the second insulating member 300 is, for example, a lower isolation plate, where the upper isolation plate and the lower isolation plate are used to separate some conductive components located in the housing 12 from the battery cell 100, so as to avoid the risk of short circuit, and also provide mounting and fixing positions for sampling wires for collecting temperature and voltage signals of the battery cell 100. The bracket 400 is disposed between the upper and lower partition plates.
In these alternative embodiments, when a plurality of battery cells 100 are assembled to form the battery module 11, the lower separator may be first placed in the case 12. The lower separator is provided with mounting holes (not shown) through which electrode terminals (not shown) of the battery cells 100 pass, and then the plurality of battery cells 100 are mounted on the lower separator such that the electrode terminals of one ends of the battery cells 100 pass through the mounting holes of the lower separator. Then, the bracket 400 is mounted on the battery cell 100, and finally, the upper separator is mounted on the battery cell 100. The upper isolation plate is also correspondingly provided with a mounting hole for the electrode terminal of the battery cell 100 to pass through, so that the electrode terminal at the other end of the battery cell 100 passes through the mounting hole of the upper isolation plate. When the isolation plate is assembled, the bracket 400 is already arranged on the battery cell 100 to provide limiting, so that the isolation plate and the battery cell 100 can be conveniently aligned, and the assembly efficiency of the battery module 11 is further improved.
The battery cell 100 includes, for example, a case, an electrode assembly located in the case, and a cap plate covering an opening of the case. The electrode assembly is formed by winding or laminating a positive electrode plate, a negative electrode plate and a separation film, and the cover plate is provided with electrode terminals, for example, the electrode terminals comprise a positive electrode terminal and a negative electrode terminal which are respectively and electrically connected with the positive electrode plate and the negative electrode plate of the electrode assembly and used for leading out current. The outer surface of the housing is also coated with an insulating film, for example. The housing is for example prismatic or cylindrical.
In some alternative embodiments, the bracket 400 includes, for example, a limiting portion 410, and the limiting portion 410 abuts against an outer wall surface of the battery cell 100 to limit the position of the battery cell 100 from deviating. The abutting of the limiting portion 410 and the outer wall surface of the battery cell 100 means: the position-limiting part 410 directly contacts with the outer wall surface of the housing of the battery cell 100 and applies a position-limiting force to the battery cell 100, or the position-limiting part 410 contacts with the outer surface of the housing of the battery cell 100 through other parts, for example, the position-limiting part 410 contacts with the outer surface of the housing of the battery cell 100 through an insulating film and applies a position-limiting force to the battery cell 100, and as long as there is an acting force or transmission of the force between the position-limiting part 410 and the battery cell 100, the position-limiting part 410 can limit the battery cell 100.
Referring also to fig. 5, fig. 5 is a cross-sectional view taken along line a-a of fig. 2. In some alternative embodiments, the bracket 400 further includes an abutment 430, the abutment 430 abutting an inner wall surface of the housing 12. The support 400 can be prevented from shaking in the housing 12 by the abutting portion 430, and the stability of the relative position between any two of the battery cell 100, the support 400 and the housing 12 is ensured.
The abutting portion 430 and the stopper portion 410 are provided separately from each other. Or, preferably, the abutting portion 430 and the limiting portion 410 are connected or integrally disposed, and the abutting portion 430 can also ensure the stability of the relative position between the limiting portion 430 and the housing 12, so as to improve the stability of the position of the limiting portion 410, and further improve the stability of the relative position between the battery cell 100 and the housing 12 through the limiting portion 410.
The abutting portion 430 is provided, for example, protruding from the outer surface of the bracket 400 so that the abutting portion 430 can abut against the inner wall surface of the housing 12. A recess may also be formed on at least one side of the abutment 430, with a gap between the recess and the inner wall of the housing 12, such that some components within the housing 12 can be disposed through the recess, for example the sampling leads described above can be disposed through the gap between the recess and the housing 12.
The position where the holder 400 is disposed on the battery cell 100 is not limited as long as the holder 400 is located between the first insulating member 200 and the second insulating member 300. In some alternative embodiments, in the height direction (Z direction in fig. 3) of the battery cell 100, the distance d1 from the bracket 400 to the first insulating member 200 is not equal to the distance d2 from the bracket 400 to the second insulating member 300, that is, the distance d1 from the bracket 400 to the first insulating member 200 is greater than the distance d2 from the bracket 400 to the second insulating member 300, or the distance d1 from the bracket 400 to the first insulating member 200 is less than the distance d2 from the bracket 400 to the second insulating member 300. The holder 400 is disposed adjacent to the first insulating member 200 or the holder 400 is disposed adjacent to the second insulating member 300, and the holder 400 is disposed offset from the middle of the battery cell 100 in the height direction.
As shown in fig. 3, a distance d1 from the bracket 400 to the first insulating member 200 is, for example, a minimum distance from the bracket 400 to the first insulating member 200, i.e., a distance from a surface of the bracket 400 facing the first insulating member 200 to a surface of the first insulating member 200 facing the bracket 400. The distance d2 from the support 400 to the second insulator 300 is, for example, the minimum distance from the support 400 to the second insulator 300, i.e., the distance from the surface of the support 400 facing the second insulator 300 to the surface of the second insulator 300 facing the support 400.
During the use of the battery cell 100, the battery cell 100 is likely to swell as the use time increases and the number of charge and discharge times increases. Generally, the middle portion of the battery cell 100 in the height direction is more severely deformed than both ends thereof. The bracket 400 is disposed at a position deviated from the middle of the battery cell 100 in the height direction, so that the deformation and damage of the limiting portion 410 caused by the expansion of the battery cell 100 can be avoided, and the safety accident caused by the limitation of the expansion of the battery cell 100 by the limiting portion 410 can be prevented, thereby further improving the safety performance of the battery module 11.
In some alternative embodiments, for example, the distance between the bracket 400 and the first insulator 200 is smaller than the distance between the bracket 400 and the second insulator 300. That is, the bracket 400 is disposed near the middle upper portion of the battery cell 100, which can reduce the moving distance of the bracket 400 on the battery cell 100 during the installation process, and facilitate the installation of the bracket 400; and in the use of battery monomer 100, along with the lapse of time, even support 400 leads to the limiting displacement that does not influence support 400 down because of gravity or vibration on battery monomer 100, support 400 still can guarantee that battery monomer 100 can not take place to rock.
Referring to fig. 6, fig. 6 is a schematic view illustrating a structure of the battery cell 100 and the bracket 400.
The size of the bracket 400 is set in various ways, and in some alternative embodiments, the height H of the limiting part 410 is set along the height direction of the battery cell 1001Height L from battery cell 1001The ratio of the components satisfies: h1：L1= 1: 20-1: 4. wherein the height L of the battery cell 1001Refers to a distance between both end surfaces in the height direction of the battery cell 100, and the height of the stopper portion 410 refers to a distance between both end surfaces in the height direction of the battery cell 100. Height H of the limiting portion 4101Height L from battery cell 1001The ratio of the first to the second ratio is within the above range, thereby preventing the limiting portion 410 from being too high and guidingThe too large contact area between the limiting part 410 and the single battery 100 makes the matching with the single battery 100 difficult, which is not favorable for the installation of the bracket 400, and can also avoid the undersize of the height of the limiting part 410, which leads to the undersize of the limiting force of the limiting part 410 and is difficult to ensure that the single battery 100 does not deviate.
Referring to fig. 7 to 10, fig. 7 to 10 are schematic structural views of a bracket 400 in different embodiments.
The arrangement manner of the limiting portion 410 is various, and in some alternative embodiments, as shown in fig. 7 and 8, the limiting portion 410 includes a limiting hole 412, and the battery cell 100 is sleeved in the limiting hole 412 and abuts against an inner wall surface of the limiting hole 412. The limiting holes 412 can provide limiting in different directions for the battery unit 100, and the battery unit 100 is prevented from deviating towards different directions.
In other alternative embodiments, as shown in fig. 9, the limiting portion 410 includes a limiting groove 413, and at least a part of the battery cells 100 are located in the limiting groove 413 and abut against an inner wall surface of the limiting groove 413. In these optional embodiments, an opening is formed at one side of the limiting groove 413 facing the battery cell 100, so that the battery cell 100 is conveniently clamped in the limiting groove 413 through the opening of the limiting groove 413, the support 400 is conveniently mounted, and the assembly efficiency of the battery module 11 can be improved.
In still other alternative embodiments, as shown in fig. 10, the position-limiting portion 410 includes a support rod 414, and the battery cell 100 abuts against an outer end surface of the support rod 414, that is, the outer end surface of the support rod 414 abuts against an outer wall surface of the battery cell 100. The limiting surface 411 is disposed on the outer end surface of the supporting rod 414, so that the assembling efficiency between the bracket 400 and the battery cell 100 can be further improved.
In some alternative embodiments, the position-limiting part 410 comprises a position-limiting surface 411, and the position-limiting surface 411 is in surface-to-surface contact with the battery cell 100, that is, the position-limiting part 410 is in surface-to-surface contact with the battery cell 100. The stopper 410 abuts against the outer wall surface of the battery cell 100 via a stopper surface 411. Through setting up spacing face 411, can increase the area of contact of spacing portion 410 and battery monomer 100, improve the stability of relative position between spacing portion 410 and the battery monomer 100, and then improve the spacing power that spacing portion 410 provided to battery monomer 100, guarantee that battery monomer 100 is difficult for taking place to vibrate or squint.
The shape of the limiting surface 411 may be set in various ways, and the limiting surface 411 may be an arc surface or a plane surface, for example.
The battery cell 100 is, for example, a cylindrical battery cell 100, the battery cell 100 has an arc-shaped outer wall surface, and when the limiting surface 411 is an arc-shaped surface, the shape of the limiting surface 411 is matched with the shape of the outer wall surface of the battery cell 100, so that the contact area between the limiting part 410 and the battery cell 100 is further increased. Or, the limiting surface 411 is a plane, and the limiting surface 411 and the outer wall surface of the battery unit 100 are in line-surface contact.
The battery cell 100 is, for example, a prismatic battery cell 100, the outer wall surface of the battery cell 100 is a plane, and when the limiting surface 411 is a plane, the shape of the limiting surface 411 is matched with the shape of the outer wall surface of the battery cell 100, so that the contact area between the limiting part 410 and the battery cell 100 can be increased. Or, the limiting surface 411 is an arc surface, and the limiting surface 411 is in line-surface contact with the outer wall surface of the battery cell 100.
In some alternative embodiments, the position-limiting surface 411 is in surface-to-surface contact with the outer wall surface of the battery cell 100, so that the contact area between the position-limiting surface 411 and the battery cell 100 is increased, and the stability of the relative position between the position-limiting part 410 and the battery cell 100 is improved.
The number of the battery cells 100 in the battery module 11 is not limited, and there may be one battery cell 100. Preferably, the battery module 11 has a plurality of battery cells 100, and the plurality of battery cells 100 are arranged in the housing 12 in a row and in a row, so that the energy density of the battery module 11 can be increased.
When there are a plurality of battery cells 100, the limiting portion 410 is, for example, a plurality, and each battery cell 100 is disposed in cooperation with the corresponding limiting portion 410. That is, the plurality of battery cells 100 can be restrained by the stopper 410, so that the stability of the relative positions between the plurality of battery cells 100 in the battery module 11 is improved, and the plurality of battery cells 100 are prevented from colliding with each other.
When the plurality of position-limiting portions 410 are provided, the plurality of position-limiting portions 410 are disposed separately from each other. Or, preferably, the bracket 400 further includes a connecting portion 420, and the connecting portion 420 is used to connect two adjacent limiting portions 410, so that the plurality of limiting portions 410 are connected as a whole, and the installation of the plurality of limiting portions 410 can be completed by one installation operation, which can effectively improve the installation efficiency of the battery module 11, and can also improve the structural strength of the limiting portions 410 themselves.
The manner of disposing the holder 400 is not limited to this, and as shown in fig. 7, for example, the holder 400 has a plate shape, the stopper hole 412 is disposed through the holder 400, and the plurality of stopper holes 412 are spaced apart on the holder 400. The shape of the limiting hole 412 is matched with the battery unit 100, for example, so that the gap between the limiting surface 411 and the battery unit 100 can be reduced, and the stability of the relative position between the bracket 400 and the battery unit 100 can be ensured. It is understood that the distribution of the limiting holes 412 on the bracket 400 may be adjusted according to the arrangement of the battery cells 100.
In other alternative embodiments, as shown in fig. 8, the frame 400 has a net structure, and the position-limiting portion 410 has a ring shape and includes a ring-shaped wall portion and a position-limiting hole 412 surrounded by the ring-shaped wall portion. The plurality of position limiting parts 410 are connected to each other by the connection part 420, or the plurality of position limiting parts 410 are directly connected to each other. The distribution of the plurality of stoppers 410 may be adjusted according to the arrangement of the battery cells 100.
In still other alternative embodiments, as shown in fig. 9 and 10, the bracket 400 includes a main rod 440, and a plurality of support rods 414 are disposed on both sides of the main rod 440 and spaced apart from each other in the axial direction of the main rod 440. The outer end surface of the supporting rod 414 forms a limiting surface 411, the outer end surface of the supporting rod 414 is, for example, a plane, or one side of the supporting rod 414 is provided with a limiting groove 413, and the like.
The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. For example, the algorithms described in the specific embodiments may be modified without departing from the basic spirit of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (12)
1. A battery pack, comprising:
the battery module comprises a battery monomer, a first insulating part, a second insulating part and a bracket, wherein the first insulating part is arranged at one end of the battery monomer, the second insulating part is arranged at the other end of the battery monomer, the bracket is positioned between the first insulating part and the second insulating part, and the bracket is used for being connected with the battery monomer so as to limit the position of the battery monomer to deviate; and
a housing having an accommodating chamber in which the battery module is disposed;
wherein the bracket includes an abutting portion that abuts against an inner wall surface of the housing.
2. The battery pack according to claim 1, wherein the bracket includes a stopper portion that abuts against an outer wall surface of the battery cell to restrict a position of the battery cell from being shifted.
3. The battery pack according to claim 2, wherein the limiting portion includes a limiting hole, and the battery cell is fitted in the limiting hole and abuts against an inner wall surface of the limiting hole.
4. The battery pack according to claim 2, wherein the stopper portion includes a stopper groove, and at least part of the battery cells are located in the stopper groove and abut against an inner wall surface of the stopper groove.
5. The battery pack according to claim 2, wherein the stopper portion includes a support rod, and the battery cell abuts against an outer end surface of the support rod.
6. The battery pack according to any one of claims 2 to 5, wherein the stopper portion is in surface-to-surface contact with the battery cell.
7. The battery pack according to any one of claims 2 to 5, wherein a plurality of battery cells and a plurality of limiting parts are arranged, and each battery cell is matched with the corresponding limiting part.
8. The battery pack according to claim 7, wherein the bracket further comprises a connecting portion for connecting two adjacent limiting portions.
9. The battery pack according to any one of claims 2 to 5, wherein the height H of the stopper portion is set along the height direction of the battery cell1Height L of the battery cell1The ratio of the components satisfies: h1：L1=1：20~1：4。
10. The battery pack according to any one of claims 1 to 5, wherein a distance from the holder to the first insulating member is greater than a distance from the holder to the second insulating member in a height direction of the battery cell;
or the distance from the bracket to the second insulating part is greater than the distance from the bracket to the first insulating part.
11. The battery pack according to any one of claims 1 to 5, wherein the housing has a top cover, a bottom plate, and side plates connected between the top cover and the bottom plate, the top cover, the bottom plate, and the side plates are used to enclose the accommodating cavity, at least a portion of the first insulating member is located between the top cover and the battery cell, and at least a portion of the second insulating member is located between the bottom plate and the battery cell.
12. An apparatus comprising a battery as claimed in any one of claims 1 to 11 for providing electrical energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020396840.5U CN210403873U (en) | 2020-03-25 | 2020-03-25 | Battery module, battery pack and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020396840.5U CN210403873U (en) | 2020-03-25 | 2020-03-25 | Battery module, battery pack and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210403873U true CN210403873U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020396840.5U Active CN210403873U (en) | 2020-03-25 | 2020-03-25 | Battery module, battery pack and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331985A (en) * | 2020-08-12 | 2021-02-05 | 宁德时代新能源科技股份有限公司 | Battery module, battery, electrical device, manufacturing method and system for battery module |
| WO2023024906A1 (en) * | 2021-08-27 | 2023-03-02 | 宁德时代新能源科技股份有限公司 | Battery and electrical device |
| CN115832505A (en) * | 2021-10-22 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | Battery monomer support, battery module, battery and power consumption device |
-
2020
- 2020-03-25 CN CN202020396840.5U patent/CN210403873U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331985A (en) * | 2020-08-12 | 2021-02-05 | 宁德时代新能源科技股份有限公司 | Battery module, battery, electrical device, manufacturing method and system for battery module |
| WO2023024906A1 (en) * | 2021-08-27 | 2023-03-02 | 宁德时代新能源科技股份有限公司 | Battery and electrical device |
| CN115832505A (en) * | 2021-10-22 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | Battery monomer support, battery module, battery and power consumption device |
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