CN217848126U - Battery pack and new energy automobile - Google Patents

Abstract

The embodiment of the utility model provides a battery package and new energy automobile relates to power battery technical field. The battery pack comprises a shell, a plurality of battery module layers and a plurality of liquid cooling plates. Multilayer battery module layer is installed in the casing, and every layer of battery module layer all includes interval distribution's a plurality of battery module, and this battery package is the form of multilayer module on the whole like this, and simultaneously, interval distribution has the heat dissipation of doing benefit to between each battery module. A plurality of liquid cooling boards are all installed in the casing, just, and a plurality of liquid cooling boards set up with multilayer battery module layer one-to-one. Wherein, to every layer of battery module layer, cover all battery modules on the liquid cooling board that corresponds. Set up a plurality of liquid cooling boards through corresponding and can realize dispelling the heat to all battery module layers, to every layer of battery module layer, the liquid cooling board that corresponds can dispel the heat to all battery modules, has improved the radiating effect greatly, and this kind of mode can be understood as the multilayer module mounting means who is a tape liquid cooling function.

Description

Battery pack and new energy automobile

Technical Field

The utility model relates to a power battery technical field particularly, relates to a battery package and new energy automobile.

Background

In the power battery trade, the module of square electric core that many battery packs used, most all are that the module individual layer discharges, even have the bilayer to discharge, adopt the battery pack of double-deck design, often the overall arrangement is comparatively concentrated.

Therefore, in the prior art, the problem of poor heat dissipation of the battery pack exists.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery package and new energy automobile, it can improve the radiating effect.

The embodiment of the utility model discloses a can realize like this:

an embodiment of the utility model provides a battery pack, it includes:

a housing;

the battery module layer comprises a plurality of battery modules, a plurality of battery module layers and a plurality of battery module groups, wherein the battery modules are arranged in the shell; and

the liquid cooling plates are all arranged in the shell and are in one-to-one correspondence with the multilayer battery module layers;

and all the battery modules are covered on the corresponding liquid cooling plate aiming at each layer of the battery module layer.

Optionally, the battery pack further comprises a plurality of layers of bracket assemblies, and the plurality of layers of bracket assemblies and the plurality of layers of battery modules are arranged in a one-to-one correspondence manner;

for each layer of the multi-layer support component layer, the support component layer comprises a plurality of support components distributed at intervals;

each support assembly comprises a module connecting frame and a support; part of the module connecting frame is arranged at the top position between two adjacent battery modules in the battery module layer and used for fixing the two adjacent battery modules; part of the module connecting frame is arranged at the top position of the outer side of the battery module close to the outer side in the battery module layer; the support is connected with the module connecting frames in a one-to-one correspondence mode, the support is fixedly installed on the shell, and the support is used for bearing the liquid cooling plate corresponding to the battery module layer on the upper layer.

Optionally, the battery package still includes a plurality of module support frames of vertical setting, the bottom of a plurality of module support frames all with the casing is connected, every the module support frame all corresponds and vertically arranges a plurality of the leg joint is fixed.

Optionally, the both sides on multilayer battery module layer are equallyd divide cloth have the module support frame, and corresponding two the module support frame be used for respectively with the both ends installation of support is fixed.

Optionally, the bracket component further comprises a mounting plate, the mounting plate is located near the outer side top position of the battery module in the battery module layer, and the mounting plate is used for mounting and fixing one end of the module connecting frame to the corresponding module supporting frame.

Optionally, the housing comprises a top shell and a bottom shell, the top shell is mounted on top of the bottom shell, and the multi-layer battery module layer and the plurality of liquid cooling plates are disposed between the top shell and the bottom shell;

wherein the height of the bottom case is between the heights of the battery module layers of the bottommost layer and the penultimate layer; and the two ends of the bottom shell and the multilayer battery module layer are arranged at intervals.

Optionally, the battery pack further comprises a liquid cooling pipe system, and the liquid cooling pipe system is communicated with all the liquid cooling plates at the same time.

Optionally, the battery pack further includes a cover plate mounted on the top of the multi-layer battery module layer and covering all the battery modules of the topmost battery module layer.

Optionally, the battery pack further comprises a foam filler disposed between the housing and the multilayer battery module layer.

The embodiment of the utility model provides a new energy automobile is still provided, it includes foretell battery package.

The utility model discloses battery package and new energy automobile's beneficial effect includes, for example:

the battery pack comprises a shell, a plurality of battery module layers and a plurality of liquid cooling plates. Multilayer battery module layer is installed in the casing, and every layer of battery module layer all includes interval distribution's a plurality of battery module, and this battery package is the form of multilayer module on the whole like this, and simultaneously, interval distribution has the heat dissipation of doing benefit to between each battery module. A plurality of liquid cooling boards are all installed in the casing, and, a plurality of liquid cooling boards set up with multilayer battery module layer one-to-one. Wherein, to every layer battery module layer, cover all battery modules on the corresponding liquid cooling plate. Set up a plurality of liquid cooling boards through corresponding and can realize dispelling the heat to all battery module layers, to every layer of battery module layer, the liquid cooling board that corresponds can dispel the heat to all battery modules, has consequently improved the radiating effect of battery package on the whole greatly, and this kind of mode can be understood as the multilayer module mounting means who is a tape liquid cooling function.

The new energy automobile comprises the battery pack and has all functions of the battery pack.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a battery pack provided in this embodiment;

FIG. 2 is a schematic structural view of FIG. 1 with the top shell omitted;

FIG. 3 is a schematic structural view of FIG. 2 without a foam filling member;

FIG. 4 is a schematic structural view of FIG. 3 with the bottom case omitted;

FIG. 5 is a schematic view of a portion of the structure of FIG. 4;

fig. 6 is a schematic structural view of fig. 5 with one battery module and one cover plate omitted.

Icon: 1000-battery pack; 100-a housing; 110-a top shell; 120-a bottom shell; 200-a battery module layer; 210-a battery module; 300-liquid cooling plate; 400-scaffold component layer; 410-a bracket assembly; 411-module link; 412-a scaffold; 413-a mounting plate; 500-module support frame; 600-liquid cooling pipe system; 700-cover plate; 800-foam filling piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are only used to distinguish one description from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

As described in the background art, in the power battery industry, many battery packs use modules of square battery cells, most of the modules are in single-layer discharge mode, even double-layer discharge mode is adopted, and the battery packs adopting the double-layer design are often more intensively arranged. Therefore, in the prior art, the problem of poor heat dissipation of the battery pack exists.

In view of the above, referring to fig. 1 to 6, the present embodiment provides a battery pack 1000 and a new energy vehicle (not shown), which can effectively solve the above-mentioned technical problems and improve the heat dissipation effect.

The new energy automobile comprises an automobile body structure and the battery pack 1000, wherein the automobile body structure comprises a chassis, an automobile body, a power system, a transmission system and the like, the structures can adopt mature technologies in the prior art, and therefore, detailed description is omitted, and the battery pack 1000 is generally carried on the chassis.

Referring to fig. 1 to fig. 3, fig. 1 is a schematic structural diagram of a battery pack 1000 according to the present embodiment. Fig. 1 shows a battery pack 1000 comprising an outer housing 100 and internal electrical components, which are arranged in the housing 100. Specifically, the case 100 includes a top case 110 and a bottom case 120, and the top case 110 is mounted on the top of the bottom case 120. Electrical components, including modules and other related structures, are disposed between the top housing 110 and the bottom housing 120, and the specific structure thereof will be described in detail below.

Fig. 2 is a schematic structural view of fig. 1 without the top case 110. Fig. 3 is a schematic structural view of fig. 2 without the foam filling member 800 (described in detail below). The battery pack 1000 further includes a plurality of battery module layers 200 and a plurality of liquid-cooled plates 300. The plurality of battery module layers 200 are mounted in the case 100, and each battery module layer 200 includes a plurality of battery modules 210 spaced apart from each other. Thus, the battery pack 1000 is formed as a multi-layered module as a whole, and the battery modules 210 are spaced apart from each other to facilitate heat dissipation. The plurality of liquid cooling plates 300 are all installed in the housing 100, and the plurality of liquid cooling plates 300 are disposed in one-to-one correspondence with the plurality of battery module layers 200. For each battery module layer 200, all the battery modules 210 are covered on the corresponding liquid cooling plate 300. Set up a plurality of liquid cooling boards 300 through corresponding and can realize dispelling the heat to all battery module layers 200, to every layer of battery module layer 200, corresponding liquid cooling board 300 can dispel the heat to all battery modules 210, has consequently improved the radiating effect of battery package 1000 on the whole greatly, and this kind of mode can be understood as the multilayer module mounting means who takes the liquid cooling function.

Meanwhile, in fig. 2, the battery pack 1000 further includes a foam filling member 800, and the foam filling member 800 is disposed between the case 100 and the multi-layer battery module layer 200. The structural form of the multi-layer module is smoothly passed through the vibration test by filling the gap between the module and the housing 100 (top case 110) with a foam material. The stability of the whole structure can be ensured during transportation and use.

In fig. 2, the battery pack 1000 further includes a liquid cooling pipe system 600, and the liquid cooling pipe system 600 is simultaneously connected to all the liquid cooling plates 300. Therefore, the liquid cooling pipe system 600 can supply cooling capacity to all the liquid cooling plates 300 at the same time, and the control is convenient.

In order to improve structural stability, referring to fig. 3, the battery pack 1000 further includes a cap plate 700, the cap plate 700 being mounted on the top of the multi-layered battery module layer 200 and covering all the battery modules 210 of the topmost battery module layer 200.

Fig. 4 is a schematic structural diagram of fig. 3 without the bottom case 120. As can be seen, the present embodiment collectively shows three battery module layers 200, and each battery module layer 200 includes three battery modules 210. Of course, in other embodiments, the number of battery module layers 200 may be increased or decreased, such as two layers, four layers, five layers, and so forth. The number of the battery modules 210 per one battery module layer 200 may also be increased or decreased, for example, two, four, five, etc.

Referring to fig. 3 and 4, a multi-layer battery module layer 200 and a plurality of liquid-cooled panels 300 are disposed between the top case 110 and the bottom case 120. Wherein, the height of the bottom case 120 is between the heights of the bottommost layer and the penultimate layer of the battery module layer 200. Both ends of the bottom case 120 are spaced apart from the multi-layer battery module layer 200.

In other words, the bottom case 120 may have a height that covers the lowermost (penultimate) battery module layer 200, but exposes the middle (penultimate) battery module layer 200, thereby facilitating the wiring and maintenance, and at the same time, the bottom case 120 has free areas at both ends thereof, thereby facilitating the wiring and maintenance. For example, operating personnel can have better visual sense to the battery module layer 200 of bottommost layer, conveniently sees the internal conditions clearly, can not shelter from lower floor's module after the upper module installation, brings very big facility to operations such as subsequent wiring.

For convenience of understanding the detailed structure of the battery module layer 200, the liquid cooling plate 300, etc., please refer to fig. 5 and fig. 6, in which fig. 5 is a schematic diagram of a part of the structure in fig. 4. Fig. 6 is a schematic structural view illustrating one battery module 210 and one cap plate 700 omitted in fig. 5.

In order to facilitate the installation of the battery module 210, in this embodiment, the battery pack 1000 further includes a plurality of battery support assembly layers 400, and the plurality of battery support assembly layers 400 and the plurality of battery module layers 200 are disposed in a one-to-one correspondence. Such that each rack assembly level 400 is provided with all the battery modules 210 of each level.

For each multi-tier scaffold assembly tier 400, the scaffold assembly tier 400 includes a plurality of scaffold assemblies 410 spaced apart. Each bracket assembly 410 includes a module connecting bracket 411 and a bracket 412; the partial module connecting frame 411 is disposed at a top position between two adjacent battery modules 210 near the inside in the battery module layer 200, and is used to fix the two adjacent battery modules 210; part of the module connecting frames 411 are disposed at the outer top positions of the outer battery modules 210 in the battery module layer 200; the brackets 412 are connected with the module connecting frames 411 in a one-to-one correspondence manner, the brackets 412 are fixedly installed on the housing 100, and the brackets 412 are used for carrying the liquid cooling plate 300 corresponding to the battery module layer 200 on the upper layer.

It can be understood that, for each battery module layer 200, module coupling brackets 411 are distributed on the top of both ends of the middle battery module 210, thereby coupling the other two adjacent battery modules 210. For the outer battery modules 210, the top position of the outer side thereof is also provided with a module connecting frame 411, which can be expanded conveniently, i.e. the number of the battery modules 210 can be increased continuously to be connected therewith, and meanwhile, the module connecting frame 411 can also play a certain fixing role to be fixed on the housing 100.

As for the bracket 412, it not only serves to fix the module connecting frame 411 to the housing 100, but also serves to carry the liquid cooling plate 300. Because in this embodiment, the liquid cooling plate 300 corresponding to each battery module layer 200 is disposed at the bottom thereof, the support 412 can support the liquid cooling plate 300 on the upper layer, and meanwhile, the support 412 has a certain height, so that the upper and lower battery module layers 200 are spaced apart, thereby further improving the heat dissipation effect. Specifically, the bracket 412 spaces the battery module 210 of the present layer from the liquid cooling plate 300 of the previous layer. In this embodiment, the bracket 412 is made of an aluminum block, so that a better heat dissipation effect is achieved.

In order to fix the battery module 210 to the casing 100 conveniently, in this embodiment, the battery pack 1000 further includes a plurality of module support frames 500 vertically disposed, the bottom ends of the module support frames 500 are connected to the casing 100, and each module support frame 500 is fixed to the plurality of vertically arranged brackets 412.

Specifically, module supporting frames 500 are uniformly distributed on two sides of the multi-layer battery module layer 200, and the two corresponding module supporting frames 500 are used for being respectively fixed to two ends of the bracket 412.

Referring to fig. 3 and 4, the number of the module supporting frames 500 is eight, and four battery module layers 200 are divided at two sides thereof, and each battery module layer corresponds to each other two by two, so that two ends of the bracket 412 can be fixed.

For each battery module layer 200, in order to fix the outer battery modules 210, in this embodiment, with reference to fig. 5 and 6, the bracket assembly 410 further includes a mounting plate 413, the mounting plate 413 is located at the top position of the outer side of the outer battery module 210 in the battery module layer 200, and the mounting plate 413 is used for fixing one end of the module connecting frame 411 to the corresponding module supporting frame 500.

With reference to fig. 1 to 6, the present embodiment provides a mounting manner of a battery pack 1000:

s1: the lowermost liquid-cooled plate 300 is first placed in the bottom chassis 120, and the three battery modules 210 are sequentially placed in the bottom chassis 120 at intervals, thereby forming the lowermost battery module layer 200.

S2: a plurality of module mounting brackets are respectively fixed to both end top positions of each battery module 210, for example, by screws.

S3: the plurality of brackets 412 are respectively fixed to the plurality of module mounts, for example, by screws.

S4: the second layer of fluid cooled plates 300 is placed on the support 412.

S5: three battery modules 210 are sequentially placed on the second layer of the liquid-cooled plate 300 at intervals, thereby forming the second layer of the battery module layer 200.

S6: and by analogy, the three battery module layers 200 and the two liquid cooling plates 300 are paved.

S7: a cover plate 700 is mounted on the topmost battery module layer 200.

S8: the eight module supporting frames 500 are sequentially fixed to the bottom case 120, and the module supporting frames 500 are fixedly mounted to the corresponding brackets 412 and the mounting plate 413 by screws.

S9: the foam padding 800 is snapped onto the multi-layer battery module layer 200.

S10: the top shell 110 is closed to complete the box sealing.

To sum up, the embodiment of the utility model provides a battery package 1000 and new energy automobile, this battery package 1000 includes casing 100, multilayer battery module layer 200 and a plurality of liquid cooling plate 300. Multilayer battery module layer 200 is installed in casing 100, and every layer of battery module layer 200 all includes a plurality of battery modules 210 of interval distribution, and this battery package 1000 is the form of multilayer module on the whole like this, and simultaneously, interval distribution has the heat dissipation that does benefit to between each battery module 210. The plurality of liquid cooling plates 300 are all installed in the housing 100, and the plurality of liquid cooling plates 300 are disposed in one-to-one correspondence with the plurality of battery module layers 200. For each battery module layer 200, all the battery modules 210 are covered on the corresponding liquid cooling plate 300. Set up a plurality of liquid cooling boards 300 through corresponding and can realize dispelling the heat to all battery module layers 200, to every layer of battery module layer 200, corresponding liquid cooling board 300 can dispel the heat to all battery modules 210, has consequently improved the radiating effect of battery package 1000 on the whole greatly, and this kind of mode can be understood as the multilayer module mounting means who takes the liquid cooling function.

The new energy automobile includes the battery pack 1000, which has all functions of the battery pack 1000.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A battery pack, comprising:

a housing (100);

a plurality of battery module layers (200), wherein the plurality of battery module layers (200) are mounted in the housing (100), and each battery module layer (200) comprises a plurality of battery modules (210) distributed at intervals; and

a plurality of liquid cooling plates (300), wherein the plurality of liquid cooling plates (300) are all installed in the shell (100), and the plurality of liquid cooling plates (300) and the plurality of battery module layers (200) are arranged in a one-to-one correspondence manner;

wherein, for each layer of the battery module layer (200), the corresponding liquid cooling plate (300) covers all the battery modules (210).

2. The battery pack of claim 1, wherein the battery pack (1000) further comprises a plurality of layers of standoff members (400), the plurality of layers of standoff members (400) being arranged in a one-to-one correspondence with the plurality of layers of battery modules (200);

for each layer of the multi-layer stent assembly layer (400), the stent assembly layer (400) comprises a plurality of stent assemblies (410) distributed at intervals;

wherein each bracket assembly (410) comprises a module connecting bracket (411) and a bracket (412); part of the module connecting frame (411) is arranged at the top position between two adjacent battery modules (210) at the inner side in the battery module layer (200) and is used for fixing the two adjacent battery modules (210); part of the module connecting frames (411) are arranged at the top position of the outer side of the battery module (210) which is close to the outer side in the battery module layer (200); the brackets (412) are correspondingly connected with the module connecting frames (411) one by one, the brackets (412) are installed and fixed on the shell (100), and the brackets (412) are used for bearing the liquid cooling plate (300) corresponding to the battery module layer (200) on the upper layer.

3. The battery pack according to claim 2, wherein the battery pack (1000) further comprises a plurality of module support frames (500) vertically arranged, bottom ends of the module support frames (500) are connected with the housing (100), and each module support frame (500) is correspondingly and fixedly installed on the plurality of vertically arranged brackets (412).

4. The battery pack according to claim 3, wherein the module support frames (500) are distributed on both sides of the multi-layered battery module layer (200), and the corresponding two module support frames (500) are used to be respectively fixed to both ends of the bracket (412).

5. The battery pack according to claim 3, wherein the bracket assembly (410) further comprises a mounting plate (413), the mounting plate (413) being located at an outer top position of the outer battery module (210) in the battery module layer (200), the mounting plate (413) being used for mounting and fixing one end of the module connecting bracket (411) to the corresponding module supporting bracket (500).

6. The battery pack according to any one of claims 1-5, wherein the housing (100) comprises a top shell (110) and a bottom shell (120), the top shell (110) being mounted on top of the bottom shell (120), the multi-layer battery module layer (200) and the plurality of liquid-cooled panels (300) each being disposed between the top shell (110) and the bottom shell (120);

wherein the bottom case (120) has a height between that of the bottommost and penultimate battery module layers (200); the two ends of the bottom case (120) are spaced apart from the multi-layer battery module layer (200).

7. The battery pack of any of claims 1-5, wherein the battery pack (1000) further comprises a liquid cooling pipe system (600), the liquid cooling pipe system (600) being in communication with all of the liquid cooling plates (300) simultaneously.

8. The battery pack according to any one of claims 1 to 5, wherein the battery pack (1000) further comprises a cap plate (700), the cap plate (700) being mounted on the top of the multi-layered battery module layer (200) and covering all the battery modules (210) of the topmost battery module layer (200).

9. The battery pack according to any one of claims 1 to 5, wherein the battery pack (1000) further comprises a foam filler (800), the foam filler (800) being disposed between the case (100) and the multi-layered battery module layer (200).

10. A new energy automobile, characterized by comprising the battery pack (1000) according to any one of claims 1 to 9.

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