CN213278269U

CN213278269U - Battery support of battery package, battery package and vehicle

Info

Publication number: CN213278269U
Application number: CN202022441713.5U
Authority: CN
Inventors: 李雷; 郑慧苗; 叶鹏
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-05-25
Anticipated expiration: 2030-10-28

Abstract

The application provides battery support, battery package and the vehicle that discloses battery package, battery support includes: the lower layer bracket is connected with a bottom plate of the box body of the battery pack; the upper layer bracket is arranged on the lower layer bracket and is fixed with the lower layer bracket and/or the bottom plate; the battery pack is characterized in that a first accommodating space is defined between the bottom plate of the box body and the lower layer of support, a second accommodating space is defined between the upper layer of support and the top plate of the box body, a first battery module is arranged in the first accommodating space, a second battery module is arranged in the second accommodating space, the top end of the upper layer of support is connected with the mounting lug of the first battery module, the height of the second battery module is H, the distance from the upper surface of the upper layer of support to the bottom surface of the second battery module is H, and H/3 is less than or equal to H and less than or equal to 2H/3. So as to effectively inhibit the expansion of the battery module and improve the service life and the safety of the battery pack.

Description

Battery support of battery package, battery package and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a battery support, battery package and vehicle of battery package are related to.

Background

The battery pack of the electric vehicle is fixed below the chassis, and due to the structural shape of the chassis, the arrangement space of the battery pack is uneven, the height of the position, right opposite to the pedal of the vehicle, of the chassis is low, and the heights of the positions, corresponding to the front row seat and the rear row seat, of the chassis are high.

In the related art, the battery pack may be provided in a double-layered structure in a region corresponding to the seat and in a single-layered structure in a region corresponding to the footrest.

However, the wrapping effect of the existing double-layer structure on the upper-layer battery module is poor, and the expansion of the upper-layer battery module cannot be effectively inhibited.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a battery holder of battery package, battery holder suppresses the effect better to the inflation of second battery module.

The utility model further provides a battery package with above-mentioned battery holder.

The utility model also provides an adopt vehicle of above-mentioned battery package.

According to the utility model discloses battery holder of battery package, include: the lower layer bracket is connected with a bottom plate of the box body of the battery pack; the upper layer bracket is arranged on the lower layer bracket and is fixed with the lower layer bracket and/or the bottom plate; the battery pack is characterized in that a first accommodating space is defined between the bottom plate of the box body and the lower layer of support, a second accommodating space is defined between the upper layer of support and the top plate of the box body, a first battery module is arranged in the first accommodating space, a second battery module is arranged in the second accommodating space, the top end of the upper layer of support is connected with the mounting lug of the first battery module, the height of the second battery module is H, the distance from the upper surface of the upper layer of support to the bottom surface of the second battery module is H, and H/3 is less than or equal to H and less than or equal to 2H/3.

According to the battery support of battery package of this application embodiment, pile up two-layer battery module in the direction of height, under the prerequisite that improves battery package energy density, make full use of battery package space, satisfy between the distance H between the upper surface of upper support and the second battery module bottom surface and the H of second battery module: h/3 is not less than H and not more than 2H/3, so that the upper layer support can be stably pushed against the second battery module, the upper layer support has the capability of stably inhibiting expansion, the second battery module is prevented from expanding, the stress concentration in the battery pack is avoided, the battery module is prevented from being damaged, and the service life and the use safety of the battery pack are improved.

According to some embodiments of the invention, the lower layer of the support comprises: a lower base; the lower layer of convex blocks are arranged on the lower layer of base and extend towards the upper side, and the first fasteners penetrate through the lower layer of base to be fixed with the bottom plate of the box body.

In some embodiments, the lower layer bump is a plurality of bumps, and the plurality of bumps are spaced apart in the width direction of the battery pack.

Further, the upper bracket includes: the upper-layer base is arranged above the lower-layer bump and is fixedly connected with the lower-layer bump through a second fastener; the upper layer lug, the upper layer lug sets up go up and extend towards the top of upper base, the upper layer lug with the installation ear of second battery module is connected, just the upper surface distance of upper layer lug is h the distance of the bottom surface of second battery module.

According to some embodiments of the utility model, the upper lug is a plurality of, and is a plurality of the upper lug is in the interval sets up, every on the width direction of battery package the upper lug with correspond the lower floor's lug is just right each other in upper and lower direction.

According to the utility model discloses battery package of vehicle of second aspect embodiment includes: the battery box comprises a box body, a first battery module and a second battery module; and the first battery module is arranged in the first accommodating space, and the second battery module is arranged in the second accommodating space.

Further, the two ends of the second battery module are provided with mounting lugs, and the mounting lugs are fixed to the upper support.

Further, the box body is formed into a lower layer base of the lower layer support, and a lower layer lug of the lower layer support is detachably arranged on the bottom plate.

Further, a liquid cooling plate is further arranged between the first battery module and the second battery module, and the liquid cooling plate and the first battery module and the upper layer support or the lower layer support are constructed into a whole.

According to the utility model discloses vehicle of third aspect embodiment includes: the battery pack described in the above embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of a battery pack according to an embodiment of the present application;

fig. 2 is a schematic front view of a battery pack according to an embodiment of the present application;

fig. 3 is a left side schematic view of a battery pack according to an embodiment of the present application;

fig. 4 is a schematic diagram of the upper layer bracket and the lower layer bracket of the battery pack, and the liquid cooling plate and the box body according to the embodiment of the application;

fig. 5 is a schematic view of a liquid cooled plate of a battery pack according to an embodiment of the present application;

fig. 6 is a schematic view of a support plate of a support part of a battery pack according to an embodiment of the present application;

fig. 7 is a schematic view of a liquid cooled plate of a battery pack according to an embodiment of the present application;

fig. 8 is a schematic cross-sectional view illustrating a gap between a liquid cooling plate and a second battery module and a first battery module of a battery pack according to an embodiment of the present disclosure.

Reference numerals:

the battery pack 1000 is provided with a battery pack,

a battery holder 100, a case 200, a first battery module 300, a second battery module 400, a liquid cooling plate 500, a support 600,

an upper layer support 110, an upper layer base 111, an upper layer bump 112,

a lower frame 120, a lower base 121, a lower bump 122,

the base plate 210, the mounting ears 410,

flange 510, first projection 520, second projection 530,

a connecting portion 610, a support plate 620, a first support plate portion 621, a first sub-support plate 6211, a first connecting plate 6212, a second support plate portion 622, a second sub-support plate 6221, a second connecting plate 6222.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A battery pack 100 and a vehicle according to an embodiment of the present invention are described below with reference to fig. 1 to 8.

As shown in fig. 1 and 2, a battery pack 100 according to an embodiment of the present invention includes: a lower holder 120, the lower holder 120 being connected to a bottom plate 210 of the case 200 of the battery pack 100; and the upper bracket 110, wherein the upper bracket 110 is arranged on the lower bracket 120 and fixed with the lower bracket 120 and/or the bottom plate 210.

Wherein, the bottom plate 210 of box 200, inject first accommodation space between the lower floor's support 120, inject the second accommodation space between the roof of upper support 110 and box 200, be provided with first battery module 300 in the first accommodation space, be provided with second battery module 400 in the second accommodation space, the top of upper support 110 is connected with the installation ear 410 of first battery module 300, second battery module 400 highly is H, the upper surface of upper support 110 is H apart from the distance of the bottom surface of first battery module 300, and satisfy: h is more than or equal to H/3 and less than or equal to 2H/3.

Specifically, the first battery module 300 is disposed on the bottom plate 210, the lower bracket 120 is fixed at two ends of the first battery module 300 and pushes against the first battery module 300, and the second battery module 400 is located above the first battery module 300, fixed in the battery pack 100 through the upper bracket 110, and pushed against the second battery module 400 through the upper bracket 110.

Furthermore, the distance H between the upper surface of the upper support 110 and the bottom surface of the second battery module 400 and the distance H between the upper support 110 and the bottom surface of the second battery module 400 satisfy the proportional relationship, so that the part of the upper support 110, which pushes against the second battery module 400, is at least aligned with the pole group of the battery cell inside the second battery module 400, the pole group is a component in the battery module, which is easy to generate expansion deformation, and the part of the upper support 110 aligned with the pole group can effectively inhibit the expansion of the battery module, thereby improving the use safety of the battery module and improving the use safety of the battery pack 100.

According to battery package 100 of the embodiment of this application, pile up two-layer battery module in the direction of height, under the prerequisite that improves battery package 100 energy density, make full use of battery package 100 space, satisfy between the distance H that makes between upper support 110's upper surface and the second battery module 400 bottom surface and the H of second battery module 400: h/3 is not less than H and not more than 2H/3, so that the upper layer support 110 can be stably pushed against the second battery module 400, the upper layer support 110 has the capability of stably inhibiting expansion, the second battery module 400 is prevented from expanding, stress concentration in the battery pack 100 is avoided, the battery module is prevented from being damaged, and the service life and the use safety of the battery pack 100 are improved.

As shown in fig. 4, according to some embodiments of the present invention, the lower bracket 120 includes: a lower base 121; the lower bump 122 is disposed on the lower base 121 and extends upward, and the first fastener penetrates through the lower base 121 to be fixed to the bottom plate 210 of the box 200. Like this, through lower floor's base 121 and box 200 fixed connection, push away at the both ends of first battery module 300 through lower floor's lug 122 and support and carry on spacingly to first battery module 300, can improve the fixed effect of lower floor's support 120 to first battery module 300, improve the fixed stability of first battery module 300 in box 200.

In the specific embodiment shown in fig. 4, the lower bump 122 is plural, and the plural lower bumps 122 are arranged at intervals in the width direction of the battery pack 100. That is, the lower bumps 122 are spaced apart in the width direction of the first battery module 300. Like this, can reduce the weight of lower floor's support 120, avoid battery support 100 weight too big, improve battery package 100 lightweight degree to reduce the material cost of lower floor's support 120.

As shown in fig. 2 and 3, the upper bracket 110 includes: the upper-layer base 111 is arranged above the lower-layer bump 122, and the upper-layer base 111 is fixedly connected with the lower-layer bump 122 through a second fastener; the upper bump 112 is disposed on the upper base 111 and extends upward, the upper bump 112 is connected to the mounting lug 410 of the second battery module 400, and the distance between the upper surface of the upper bump 112 and the bottom surface of the second battery module 400 is h.

From this, fixed or upper strata base 111 set up in lower floor lug 122 top through upper strata base 111 and lower floor lug 122 to be connected through long screw and box 200, carry on spacingly at the both ends of second battery module 400 through upper lug 112 to second battery module 400, can improve the fixed effect of upper support 110 to second battery module 400, and improve battery support 100's structural strength and structural stability.

According to some embodiments of the present invention, the upper layer bumps 112 are plural, and the plural upper layer bumps 112 are spaced apart in the width direction of the battery pack 100, and each upper layer bump 112 and the corresponding lower layer bump 122 are opposite to each other in the up-down direction. That is to say, upper layer lug 112 sets up at interval in the width direction of upper module, and each upper layer lug 112 sets up with lower floor's lug 122 relatively in upper and lower direction, and like this, on the one hand, can reduce the weight of upper support 110, and on the other hand makes upper support 110 and lower support 120, upper support 110 and the connection of casing simpler, convenient, and battery holder 100's structural strength is higher.

As shown in fig. 1, mounting lugs 410 are provided at both ends of the second battery module 400, and the mounting lugs 410 are fixed to the upper bracket 110.

The mounting lugs 410 are connected to the upper layer bumps 112 in a lap joint manner, and are fixedly connected with the upper layer bumps 112, so that the fixing stability of the second battery module 400 on the upper layer support 110 can be improved.

Further, the case 200 is formed as a lower base 121 of the lower bracket 120, and the lower projection 122 of the lower bracket 120 is detachably provided on the bottom plate 210.

Specifically, the case 200 includes: bottom plate 210 and curb plate, the curb plate of box 200 forms lower floor's base 121, and lower floor's support 120 is connected with the curb plate of box 200, and the below that the at least part of first battery module 300 is located the curb plate can further reduce the thickness of battery package 100 to make the arrangement of battery package 100 on the automobile body simpler, convenient, the trafficability characteristic of the vehicle after arranging battery package 100 can obtain guaranteeing.

It is understood that a liquid cooling plate 500 is further disposed between the first battery module 300 and the second battery module 400, and the liquid cooling plate 500 is constructed as one body with the first battery module 300 and the upper bracket 110 or with the lower bracket 120. In this way, on one hand, the liquid cooling plate 500 is used for dissipating heat of the first battery module 300 and the second battery module 400, so that the working temperatures of the first battery module 300 and the second battery module 400 can be reduced, and the working stability of the battery pack 100 can be improved; on the other hand, the battery module is connected to the upper bracket 110 or the lower bracket 120 to be constructed as an integrated piece, so that the assembly between the first battery module 300, the second battery module 400, the upper bracket 110, the lower bracket 120, and the liquid cooling plate 500 is simpler and more convenient.

As shown in fig. 4, the battery pack 100 includes: the battery pack includes a case 200, first and

second battery modules

300 and 400, a lower bracket 120, an upper bracket 110, and a liquid cooling plate 500.

Wherein, the lower bracket 120 is connected with the bottom plate 210 of the box body 200 of the battery pack 100; the upper bracket 110 is arranged on the lower bracket 120 and is fixed with the lower bracket 120 and/or the bottom plate 210, a first accommodating space is defined among the bottom plate 210 of the box body 200, the bottom surface of the liquid cooling plate 500 and the lower bracket 120, a second accommodating space is defined among the upper bracket 110, the top surface of the liquid cooling plate 500 and the top plate of the box body 200, a first battery module 300 is arranged in the first accommodating space, and a second battery module 400 is arranged in the second accommodating space; the first battery module 300 and the second battery module 400 are respectively disposed on the upper and lower sides of the liquid cooling plate 500.

The liquid cooling plate 500 is provided with a flange 510 at the circumferential edge, the height of the flange 510 is a, and the gap between the bottom surface of the second battery module 400 and the top surface of the liquid cooling plate 500 is a, and a is smaller than a.

Specifically, the liquid cooling plate 500 is disposed between the first battery module 300 and the second battery module 400, and the heat conducting glue is filled between the bottom surfaces of the liquid cooling plate 500 and the second battery module 400, so that the height of the flange 510 of the liquid cooling plate 500 is greater than the gap between the top surface of the liquid cooling plate 500 and the bottom surface of the second battery module 400, and the overflow of the heat conducting glue is avoided.

According to the battery pack 100 of the embodiment of the application, the height of the flange 510 of the liquid cooling plate 500 is larger than the gap between the second battery module 400 and the top surface of the liquid cooling plate 500, so that the heat-conducting glue can be prevented from overflowing out of the liquid cooling plate 500, and the filling effect of the heat-conducting glue is improved. Like this, through setting up the heat conduction glue, can improve the heat conduction efficiency between second battery module 400 and the liquid cooling board 500 to improve the radiating effect of liquid cooling board 500 to second battery module 400, and then avoid appearing long-pending hot phenomenon between the first battery module 300 of superpose in the direction of height and the second battery module 400, in order to improve the safety in utilization and the job stabilization nature of battery package 100.

As shown in fig. 4 and 5, further, two ends of the liquid cooling plate 500 opposite to the upper layer bump 112 and the lower layer bump 122 are provided with first protrusions 520, the first protrusions 520 are suitable for being fixed with the upper layer bump 112 and/or the lower layer bump 122, two ends of the liquid cooling plate 500 opposite to the upper layer bump 112 and the lower layer bump 122 are further provided with second protrusions 530, the second protrusions 530 are spaced apart from the first protrusions 520, and the two second protrusions 530 at the two ends are respectively configured as a liquid inlet end and a liquid outlet end of the liquid cooling plate 500.

Therefore, the liquid cooling plate 500 is fixed on the upper bump 112 of the upper bracket 110 through the first protrusion 520, the liquid cooling plate 500 is introduced into the cooling system through the second protrusion 530, and the first battery module 300 and the second battery module 400 are cooled through the cooling liquid, so that the cooling efficiency of the liquid cooling plate 500 can be improved, and the fixing stability of the liquid cooling plate 500 on the upper bracket 110 can be improved.

Preferably, two first protrusions 520 at both ends of the liquid-cooling plate 500 are diagonally disposed, and two second protrusions 530 at both ends of the liquid-cooling plate 500 are diagonally disposed.

In some embodiments, one end of the support part 600 is connected with the case 200, the other end of the support part 600 is adapted to support the liquid cooling plate 500, and the support part 600 is configured in plurality in the length direction of the second battery module 400.

Specifically, the first battery module 300 is disposed on the bottom plate 210, the second battery module 400 is disposed above the first battery module 300, the lower bracket 120 is disposed at both ends of the first battery module 300, the upper bracket 110 is disposed at both ends of the second battery module 400, the liquid cooling plate 500 is disposed between the first battery module 300 and the second battery module 400, the support portion 600 is disposed below the liquid cooling plate 500, one end of the support portion 600 pushes the liquid cooling plate 500, the other end of the support portion 600 is connected to the case 200, the support portion 600 is configured in a plurality, and the support portions 600 are disposed at intervals in the length direction of the second battery module 400.

According to the battery package 100 of the embodiment of the application, pile up in the direction of height and set up first battery module 300 and second battery module 400, improve battery package 100 energy density, under the prerequisite in make full use of battery package 100 space, support liquid cooling board 500 in the below of liquid cooling board 500 through a plurality of supporting parts 600, can improve the stability of arranging of liquid cooling board 500 in first battery module 300 top, avoid liquid cooling board 500 to appear deformation, in order to avoid liquid cooling board 500 weeping phenomenon to appear, under the prerequisite of guaranteeing liquid cooling board 500's heat dissipation stability, make battery package 100's safety in utilization and life higher.

In the specific embodiment shown in fig. 4, according to some embodiments of the present invention, the support portion 600 includes: a support plate 620 and a connection part 610 at both ends of the support part 620, wherein one end of the connection part 610 is connected with the bottom plate 210 of the case 200, and the other end of the connection part 610 is connected with the support plate 620. From this, push away at the both ends of backup pad 620 through connecting portion 610 and support backup pad 620, backup pad 620 and the laminating setting of liquid cooling plate 500 to improve the effect of pushing away of supporting part 600 to liquid cooling plate 500.

As shown in fig. 6, the support plate 620 includes: the first supporting plate portion 621 and the second supporting plate portion 622, the first supporting plate portion 621 and the second supporting plate portion 622 are at least partially attached, and the end of the attached area is provided with a fixing hole.

Specifically, the first support plate portion 621 includes: a first connecting plate 6212 and first sub-supporting plates 6211 positioned at both sides of the first connecting plate 6212, wherein the first connecting plate 6212 is disposed adjacent to the first battery module 300, and the first sub-supporting plates 6211 are disposed adjacent to the second battery module 400 to define a "n" shaped structure; the second supporting plate portion 622 includes: a second connecting plate 6222 and second sub-supporting plates 6221 positioned at both sides of the second connecting plate 6222, the second connecting plate 6222 being disposed adjacent to the first battery module 300, the second sub-supporting plates 6221 being disposed adjacent to the second battery module 400 to define a "few" shaped structure.

Like this, through the backup pad 620 of double-deck plate structure, can avoid the backup pad 620 deformation to the structural strength of improvement backup pad 620, thereby further improve the backup pad 620 to the support stability of liquid cooling plate 500 and second battery module 400.

Further, the width of the first support plate portion 621 coincides with the width of the second support plate portion 622, and the width of the first connecting plate 6212 is smaller than the width of the second connecting plate 6222. In this way, two cavities are defined between the first support plate portion 621 and the second support plate portion 622, and a certain impact and vibration can be absorbed by the cavities, so that the support effect of the support portion 600 can be further improved.

Further, the first connecting plate 6212 is provided with a reinforcing rib. This can effectively improve the structural strength of the support 600.

In some embodiments, the supporting plate 620 has a width L, the liquid cooling plate 500 has a length S, and S/12 ≦ L ≦ S/8. Like this, make the width of backup pad 620 and the length proportion of liquid cooling plate 500 more reasonable to ensure that backup pad 620 can improve the atress of liquid cooling plate 500 effectively, avoid liquid cooling plate 500 to appear stress concentration.

According to the utility model discloses vehicle of second aspect embodiment includes: the battery pack 100 in the above embodiment.

According to the vehicle of the embodiment of the application, the battery pack 100 has the same technical effect as the battery pack 100, and the description thereof is omitted.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery holder (100) for a battery pack (1000), comprising:

the lower-layer bracket (120), the lower-layer bracket (120) is connected with a bottom plate (210) of a box body (200) of the battery pack (1000);

the upper-layer bracket (110), the upper-layer bracket (110) is arranged on the lower-layer bracket (120) and is fixed with the lower-layer bracket (120) and/or the bottom plate (210); wherein

The battery box is characterized in that a first accommodating space is defined between the bottom plate (210) of the box body (200) and the lower layer support (120), a second accommodating space is defined between the upper layer support (110) and the top plate of the box body (200), a first battery module (300) is arranged in the first accommodating space, a second battery module (400) is arranged in the second accommodating space, the top end of the upper layer support (110) is connected with an installation lug (410) of the first battery module (300), the height of the second battery module (400) is H, the distance from the upper surface of the upper layer support (110) to the bottom surface of the second battery module (400) is H, and H/3 is less than or equal to H and less than or equal to 2H/3.

2. The battery holder (100) of the battery pack (1000) of claim 1, wherein the lower layer holder (120) comprises:

a lower base (121);

the lower-layer lug (122) is arranged on the lower-layer base (121) and extends upwards, and the lower-layer base (121) and a bottom plate (210) of the box body (200) are fixed through a first fastener.

3. The battery holder (100) of a battery pack (1000) according to claim 2, wherein the lower layer projection (122) is plural, and the plural lower layer projections (122) are provided at intervals in a width direction of the battery pack (1000).

4. The battery holder (100) of a battery pack (1000) according to claim 3, wherein the upper layer holder (110) comprises:

the upper-layer base (111) is arranged above the lower-layer bump (122), and the upper-layer base (111) is fixedly connected with the lower-layer bump (122) through a second fastener;

the upper-layer bump (112) is arranged on the upper-layer base (111) and extends towards the upper side, the upper-layer bump (112) is connected with the mounting lug (410) of the second battery module (400), and the distance between the upper surface of the upper-layer bump (112) and the bottom surface of the second battery module (400) is h.

5. The battery holder (100) of a battery pack (1000) according to claim 4, wherein the upper layer bumps (112) are plural, and the plural upper layer bumps (112) are spaced apart in a width direction of the battery pack (1000), and each upper layer bump (112) and the corresponding lower layer bump (122) are opposite to each other in an up-down direction.

6. A battery pack (1000) for a vehicle, comprising:

the battery pack comprises a box body (200), a first battery module (300) and a second battery module (400);

the battery holder (100) of any of claims 1-5, the first battery module (300) being disposed in the first receiving space and the second battery module (400) being disposed in the second receiving space.

7. The battery pack (1000) of the vehicle according to claim 6, wherein mounting ears (410) are provided at both ends of the second battery module (400), and the mounting ears (410) are fixed to the upper bracket (110).

8. The battery pack (1000) for the vehicle according to claim 6, wherein the case (200) is formed as a lower base (121) of the lower bracket (120), and the lower projection (122) of the lower bracket (120) is detachably provided on the floor panel (210).

9. The battery pack (1000) of the vehicle according to claim 6, wherein a liquid cooling plate (500) is further disposed between the first battery module (300) and the second battery module (400), and the liquid cooling plate (500) is constructed as one piece with the first battery module (300) and the upper bracket (110) or with the lower bracket (120).

10. A vehicle, characterized by comprising: the battery pack (1000) of any of claims 6-9.