CN218919133U - Stacked battery module box, battery system and operation machine - Google Patents

Abstract

The utility model relates to the technical field of energy equipment, and provides a stacked battery module box, a battery system and an operation machine, wherein the stacked battery module box comprises: the framework assembly comprises a plurality of layers of frameworks, the layers of frameworks are overlapped along the vertical direction, and a space for accommodating the battery module is formed in each layer of framework; the outer guard shield sets up in the outside of skeleton subassembly, and outer guard shield can cover the skeleton subassembly. According to the stacked battery module box, the battery system and the operation machine, the weight of the battery module is borne through the framework component, the framework component can be free of water and dust prevention, the manufacturing difficulty of the framework component is greatly reduced, and after the frameworks are stacked, the periphery of the framework is hollowed out, so that the operation is more convenient when the high-low voltage connection of the battery system is carried out; the outer guard shield sets up in the outside of multilayer skeleton, can cover the skeleton subassembly, and the failure point is fewer, has improved the reliability.

Description

Stacked battery module box, battery system and operation machine

Technical Field

The utility model relates to the technical field of energy equipment, in particular to a stacked battery module box, a battery system and an operation machine.

Background

Along with the application development of diversification of the working machinery, the structure of the working machinery tends to develop in the aspects of refinement, humanization, convenient operation and maintenance and the like. In the age of increasingly shortage of energy sources, electric new energy automobiles are increasingly favored by people.

For example, commercial vehicles are vehicles that are designed and technically characterized for transporting people and goods. The electric operation of the commercial vehicle also accelerates the pace, and especially the development of the battery field of the commercial vehicle is rapid.

In the prior art, because the energy consumption requirement of a commercial vehicle is large, in order to meet the requirement of large electric quantity, a battery system is generally formed by stacking a plurality of layers of electric boxes. Each electric box is an independent sealed box body, and the independent sealed box body not only needs to meet the capacity of bearing the weight of the battery, but also needs to meet the sealing performance, so that the battery module box body is complex in structure, high in manufacturing difficulty and high in cost, and sealing failure points are also high.

Therefore, how to solve the problems of high manufacturing difficulty, high cost and high sealing failure point of the battery box in the prior art becomes an important technical problem to be solved by the person skilled in the art.

Disclosure of Invention

The utility model provides a stacked battery module box, a battery system and an operation machine, which are used for solving the defects of complex structure, high manufacturing difficulty, high cost and multiple failure points of the battery module box in the prior art, realizing cost reduction, failure points reduction and system reliability improvement.

The utility model provides a stacked battery module box body, which comprises:

the framework assembly comprises a plurality of layers of frameworks, the layers of frameworks are overlapped along the vertical direction, and each layer of framework is internally provided with a space for accommodating the battery module;

the outer shield is arranged on the outer side of the framework component and can cover the framework component.

According to the stacked battery module case provided by the utility model, the multi-layer framework unit comprises:

the first framework unit is positioned at the bottom layer, the bottom surface of the first framework unit is a sealing surface,

the second framework unit is positioned at the top of the first framework unit, and a hoisting structure is arranged on the second framework unit.

According to the stacked battery module box provided by the utility model, the framework assembly further comprises a third framework unit, and the third framework unit is positioned between the first framework unit and the second framework unit.

According to the stacked battery module box provided by the utility model, the first framework unit comprises:

the first framework body is of a square plate type structure; the first framework body is also provided with an electric replacement connector, and two sides of the first framework body are also provided with locking sleeves for connecting with a vehicle body;

the first support legs are arranged at four corners and edges of the first framework body and are used for being penetrated by a screw rod to form a hollow column structure.

According to the stacked battery module case provided by the utility model,

the second backbone unit comprises:

the second framework body is of a square framework structure;

the second support legs are arranged at four corners and edges of the second framework body and are used for being penetrated by a screw rod to form a hollow column structure, and the second support legs and the first support legs are arranged correspondingly.

According to the stacked battery module box provided by the utility model, the third framework unit comprises:

the third framework body is of a square framework structure;

the third support legs are arranged at four corners and edges of the third framework body and are of a hollow column structure for a screw rod to penetrate through; the third supporting leg, the first supporting leg and the second supporting leg are correspondingly arranged.

According to the stacked battery module box provided by the utility model, the bottom periphery of the outer shield is provided with the box cover flange, and a first sealing structure is arranged between the outer shield and the first framework unit; and a lifting hole is formed in the position, corresponding to the lifting structure, of the outer shield, and a second sealing structure is arranged between the lifting hole and the second framework unit.

According to the stacked battery module box provided by the utility model, the outer shield is of an integrated structure.

The present utility model also provides a battery system including:

the stacked battery module box body;

the battery module is arranged in each layer of framework of the stacked battery module box body; the battery module is also provided with a conductive bar;

the high-voltage box and the fuse are arranged in any layer of framework of the stacked battery module box body.

The utility model also provides a working machine comprising the stacked battery module box or the battery system.

According to the stacked battery module box body, the weight of the battery module is borne through the multi-layer framework, the framework can be free of water and dust prevention, the manufacturing difficulty of the framework is greatly reduced, and after the framework is stacked, the periphery of the framework is hollowed out, so that the stacked battery module box body is more convenient to operate when high-low voltage connection of a battery system is carried out; the outer guard shield sets up in the outside of multilayer skeleton, can cover the skeleton subassembly, and the failure point is fewer, has improved the reliability.

The battery system provided by the utility model has various advantages due to the inclusion of the stacked battery module box.

The working machine provided by the utility model has various advantages as described above due to the inclusion of the stacked battery module case or the battery system.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of a battery system provided by the present utility model;

fig. 2 is a schematic structural view of the first frame unit provided by the present utility model after the battery module is mounted;

fig. 3 is a schematic structural diagram of a first skeleton unit according to the present utility model;

fig. 4 is a schematic structural diagram of a first skeleton unit according to the present utility model in a top view;

fig. 5 is a schematic structural view of the second frame unit provided by the present utility model after the battery module is mounted;

FIG. 6 is a schematic structural diagram of a second framework unit provided by the present utility model;

fig. 7 is a schematic structural view of the third frame unit provided by the present utility model after the battery module is mounted;

FIG. 8 is a schematic structural view of a third framework unit according to the present utility model;

reference numerals:

1. a battery module case;

11. a skeleton assembly; 111. a first backbone unit; 1111. a first skeleton body; 1112. a first support leg; 1113. an electrical replacement connector; 1114. a locking sleeve; 112. a second backbone unit; 1121. a second skeleton body; 1122. a second support leg; 1123. a hoisting structure; 113. a third backbone unit; 1131. a third skeleton body; 1132. a third support leg;

12. an outer shield; 121. a case cover flange; 122. a hoisting hole;

13. a first sealing structure; 14. a second sealing structure;

2. a battery module;

3. a conductive bar;

4. a high pressure box;

5. and a fuse.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The stacked battery module case, the battery system, and the working machine of the present utility model are described below with reference to fig. 1 to 8.

As shown in fig. 1, the utility model provides a stacked battery module box body, which comprises a framework assembly 11 and an outer shield 12, wherein the framework assembly 11 comprises a plurality of layers of frameworks, and the plurality of layers of frameworks are stacked along the vertical direction, so that the requirement of large electric quantity can be met. Each layer of framework is internally provided with a space for accommodating the battery module; the outer cover 12 is disposed outside the frame assembly 11, and can cover the frame assembly 11.

According to the stacked battery module box body, the framework assembly 11 is used for bearing the weight of the battery module 2 and is used as a supporting structure, the framework assembly 11 can be used without considering water resistance and dust resistance, the manufacturing difficulty of a framework is greatly reduced, and after the frameworks are stacked, the periphery of the framework is hollowed out, so that the stacked battery module box body is more convenient to operate when in high-low voltage connection of a battery system; the outer shield 12 is arranged on the outer side of the framework assembly 11, can cover the framework assembly 11, has fewer failure points and improves reliability; therefore, the stacked battery module box body is simple in structure and low in cost.

That is, the battery carrying structure and the sealing structure are separated, that is, the structure providing the support of the battery module is the frame assembly 11 without the sealing requirement, and the structure providing the sealing of the battery is the lower-strength outer cover 12. The battery module is assembled in the frame assembly 11, and the frame assembly 11 can be longitudinally stacked to form a bare cell system with complete functions, and the outside of the bare cell system is covered with the outer cover 12 to prevent dust and water of the battery system. The scheme of the utility model simplifies the structure of the battery module box, reduces the cost and improves the reliability of the battery system.

The skeleton assembly 11 may be a cast skeleton, a profile, a steel pipe welded skeleton, or the like.

In an embodiment of the present utility model, the skeletal assembly 11 includes: the first framework unit 111 and the second framework unit 112, wherein the first framework unit 111 is located at the bottom layer, as shown in fig. 2, 3 and 4, the bottom surface of the first framework unit 111 is a closed surface, the second framework unit 112 is located at the top of the first framework unit 111, and as shown in fig. 5 and 6, a hoisting structure 1123 is arranged on the second framework unit 112; as shown in fig. 1, the outer cover 12 covers the first and second frame units 111 and 112, and the battery module 2 may be placed in each of the first and second frame units 111 and 112; as shown in fig. 1, the outer shield 12 is configured as a box body with an opening at the lower part, and is disposed at the top of the second skeleton unit 112, and the bottom side extends to the sealing surface of the first skeleton unit 111; as shown in fig. 1, a first sealing structure 13 is disposed between the outer cover 12 and the first frame unit 111, the first frame unit 111 and the second frame unit 112 provide support for the battery module 2, and the outer cover 12 provides sealing for the battery module 2.

In an embodiment of the present utility model, as shown in fig. 1, the skeleton assembly 11 further includes a third skeleton unit 113, and the third skeleton unit 113 is located between the first skeleton unit 111 and the second skeleton unit 112; the third frame unit 113 is also used for accommodating the battery module 2, and when the capacity of the battery system needs to be increased, one or more third frame units 113 can be arranged according to the requirement.

Specifically, as shown in fig. 2, 3 and 4, the first frame unit 111 includes a first frame body 1111 and a first support leg 1112, the first frame body 1111 may be a square plate structure, that is, the bottom of the first frame body 1111 is sealed, and the outer cover 12 is fastened on the first frame unit 111; the first skeleton body 1111 is further provided with a power conversion connector 1113, and the power conversion connector 1113 is used for connecting the battery module 2 with an external power supply; the two sides of the first skeleton body 1111 are also provided with locking sleeves 1114 for connection with a vehicle body; the locking sleeve 1114 is detachably connected with the vehicle body, and the locking sleeve 1114 has the function of being locked and fixed with the vehicle body when being connected with the vehicle body; the locking sleeve 1114 may be unlocked when removal from the vehicle body is desired. The structure of the specific locking sleeve 1114 is not particularly limited herein, as long as the detachable connection of the first frame body 1111 to the vehicle body can be achieved. The first support legs 1112 are disposed at four corners and edges of the first skeleton body 1111, and the first support legs 1112 are configured as hollow column structures for the screws to penetrate, the first support legs 1112 are vertically disposed, that is, the heights of the first support legs 1112 are used for providing a space for placing the battery module 2, and the heights of the first support legs 1112 can be set according to the height of the battery module 2, so that the use can be satisfied, and the space can be saved.

In an embodiment of the present utility model, as shown in fig. 5 and 6, the second skeleton unit 112 includes: a second skeletal body 1121 and a plurality of second support legs 1122, the second skeletal body 1121 being a square frame structure, that is, the second skeletal body 1121 being open; the plurality of second support legs 1122 are disposed at four corners and edges of the second skeletal body 1121, and the second support legs 1122 are disposed as hollow column structures for the screw rod to penetrate, and the second support legs 1122 are disposed corresponding to the first support legs 1112. When the second frame unit 112 and the first frame unit 111 are connected, the second support leg 1122 and the first support leg 1112 need only be aligned, and a long screw rod may be inserted into the hollow column structures of the first support leg 1112 and the second support leg 1122.

In an embodiment of the present utility model, as shown in fig. 7 and 8, the third skeleton unit 113 includes a third skeleton body 1131 and a plurality of third supporting legs 1132, where the third skeleton body 1131 is a square frame structure, that is, the third skeleton body 1131 is an open hollow structure; the third support legs 1132 are disposed at four corners and edges of the third skeleton body 1131, and the third support legs 1132 are configured as hollow column structures for the screw rod to penetrate; the third support leg 1132 is provided corresponding to the first support leg 1112 and the second support leg 1122.

Of course, the second and third skeletal bodies 1121 and 1131 may be provided in a plate structure, i.e., may be made to be closed, regardless of cost and weight.

Generally, in order to ensure more stable connection among the first frame unit 111, the second frame unit 112 and the third frame unit 113, the first support legs 1112 are respectively provided at four corners of the first frame body 1111, and three are symmetrically provided at two sides of the first frame body 1111. The position of the second support leg 1122 relative to the second skeleton body 1121 and the position of the third support leg 1132 relative to the third skeleton body 1131 are the same as those of the first support leg 1112, so as to ensure that the positions of the first support leg 1112, the second support leg 1122 and the third support leg 1132 correspond, and the first support leg 1112, the second support leg 1122 and the third support leg 1132 can be penetrated through by a long screw rod at the same time, so that the skeleton assembly is integrated, and the stability of the structure is ensured.

As shown in fig. 1, in the embodiment of the present utility model, a cover flange 121 is provided at the bottom periphery of the outer cover 12, the bottom side of the first backbone unit 111 has a structure adapted to the cover flange 121, and a first sealing structure 13 is provided between the outer cover 12 and the first backbone unit 111; a lifting hole 122 is formed in the position, corresponding to the lifting structure 1123, of the outer shield 12, and a second sealing structure 14 is arranged between the lifting hole 122 and the second framework unit 112; by providing the first sealing structure 13 and the second sealing structure 14, gaskets can be used, and glue or other sealing forms can be used.

In the embodiment of the utility model, the outer shield 12 is of an integrated structure, so that the sealing performance is better, and the failure points are fewer; the outer shroud 12 may be formed by one of, but not limited to, rotational molding, injection molding, sheet metal, suction molding, blow molding. Of course, for convenience of manufacture, the outer cover 12 may be formed by splicing a plurality of small boxes.

The battery system provided by the utility model is described below, and the battery system described below and the stacked battery module case described above can be referred to correspondingly.

The present utility model provides a battery system including: the stacked battery module box 1, the battery module 2, the high-voltage box 4 and the fuse 5; the battery module 2 is arranged in each layer of framework of the stacked battery module box body 1; and the battery module 2 is also provided with a conductive bar 3; the high-voltage box 4 and the fuse 5 are arranged in any layer of framework of the stacked battery module box body 1.

The working machine provided by the utility model is described below, and the working machine described below and the stacked battery module case described above can be referred to correspondingly.

Another embodiment of the present utility model provides a working machine including the above stacked battery module case 1 or the above battery system.

In the embodiment of the present utility model, the working machine means a working machine that can use at least new energy power, and the type is not limited, and for example, the working machine may be a heavy truck, a light truck, an excavator, a crane, a loader, or the like, in other words, the working machine may use the battery module case 1 or the battery system of the present utility model.

The working machine provided by the embodiment of the utility model comprises the stacked battery module box body 1, wherein the battery module 2 is fixed on a simpler multi-layer framework assembly 11 to form a battery system without an outer shield, and then the battery module 2 is sealed in a dustproof and waterproof manner by adopting an integrated outer shield 12 outside the framework assembly 11; the manufacturing difficulty of the framework is greatly reduced, the waterproof and dustproof effects are achieved, the sealing performance is better, the failure points are fewer, the structure is simple, and the cost is low.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "manner," "particular modes," or "some modes," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or mode is included in at least one embodiment or mode of the embodiments of the present utility model. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or manner. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or ways. Furthermore, various embodiments or modes and features of various embodiments or modes described in this specification can be combined and combined by those skilled in the art without mutual conflict.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A stacked battery module case, comprising:

the framework assembly comprises a plurality of layers of frameworks, the layers of frameworks are overlapped along the vertical direction, and each layer of framework is internally provided with a space for accommodating the battery module;

the outer shield is arranged on the outer side of the framework component and can cover the framework component.

2. The stacked battery module housing of claim 1, wherein the skeletal assembly comprises:

the first framework unit is positioned on the bottom layer, and the bottom surface of the first framework unit is a sealing surface;

the second framework unit is positioned at the top of the first framework unit, and a hoisting structure is arranged on the second framework unit.

3. The stacked battery module housing of claim 2, wherein the skeletal assembly further comprises a third skeletal unit located between the first skeletal unit and the second skeletal unit.

4. The stacked battery module housing of claim 3, wherein the first backbone unit comprises:

the first framework body is of a square plate type structure; the first framework body is also provided with an electric replacement connector, and two sides of the first framework body are also provided with locking sleeves for connecting with a vehicle body;

the first support legs are arranged at four corners and edges of the first framework body and are used for being penetrated by a screw rod to form a hollow column structure.

5. The stacked battery module case of claim 4, wherein the second backbone unit comprises:

the second framework body is of a square framework structure;

the second support legs are arranged at four corners and edges of the second framework body and are used for being penetrated by a screw rod to form a hollow column structure, and the second support legs and the first support legs are arranged correspondingly.

6. The stacked battery module case of claim 5, wherein the third backbone unit comprises:

the third framework body is of a square framework structure;

the third support legs are arranged at four corners and edges of the third framework body and are of a hollow column structure for a screw rod to penetrate through; the third supporting leg, the first supporting leg and the second supporting leg are correspondingly arranged.

7. The stacked battery module case of claim 2, wherein a case cover flange is provided at a bottom periphery of the outer shield, and a first sealing structure is provided between the outer shield and the first backbone unit; and a lifting hole is formed in the position, corresponding to the lifting structure, of the outer shield, and a second sealing structure is arranged between the lifting hole and the second framework unit.

8. The stacked battery module housing of any one of claims 1-7, wherein said outer shield is of unitary construction.

9. A battery system, comprising:

the stacked battery module case of any one of claims 1 to 8;

the battery module is arranged in each layer of framework of the stacked battery module box body; the battery module is also provided with a conductive bar;

the high-voltage box and the fuse are arranged in any layer of framework of the stacked battery module box body.

10. A working machine comprising the stacked battery module case according to any one of claims 1 to 8, or the battery system according to claim 9.

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