CN217522136U

CN217522136U - Battery box assembly and operation machine

Info

Publication number: CN217522136U
Application number: CN202221266845.1U
Authority: CN
Inventors: 杨重; 刘镇
Original assignee: Sany Heavy Industry Co Ltd
Current assignee: Sany Lithium Energy Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-09-30
Anticipated expiration: 2032-05-24

Abstract

The utility model relates to a new forms of energy operation machinery provides a battery box subassembly and operation machinery. The battery box assembly includes a bottom module, a top module, a connector, and at least one layer of battery modules. Wherein each battery module is stacked in sequence between a bottom module and a top module. The connecting piece is arranged among the bottom module, each battery module and the top module in a penetrating way. The bottom module is used for being connected with a bottom support of the operation machine. The top module is used to enclose the battery module adjacent to the top module. Through the structure, the connecting piece is connected among the bottom module, the battery module and the top module in a penetrating mode, so that the bottom module, the battery module and the top module form an integral structure and are connected with a bottom support of the operation machine. Therefore, the fixing frame body does not need to be additionally configured, the weight of the battery box assembly is greatly reduced, and the cost is reduced. In addition, the number of the battery modules can be automatically adjusted according to actual requirements, and the universality of the battery box assembly is greatly improved.

Description

Battery box assembly and operation machine

Technical Field

The utility model relates to a new forms of energy operation machinery technical field especially relates to a battery box subassembly and operation machinery.

Background

The battery box assembly is a core energy source of the new energy automobile and provides driving electric energy for the whole automobile. The existing battery box assembly is generally formed by sequentially stacking a bottom connection module, a standard battery module, and a top hoisting module, and mechanically fixing the bottom connection module, the standard battery module, and the top hoisting module in a fixing frame body. The battery box assembly is heavy and high in cost, and standard battery modules with different sizes need to be provided with fixing frame bodies with different sizes, so that the universality is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery box subassembly and operation machinery for solve great, the cost of weight of current battery box subassembly higher, and the relatively poor problem of commonality.

According to the utility model discloses a first aspect provides a battery box subassembly, include: the battery module comprises a bottom module, a top module, a connecting piece and at least one layer of battery module.

Wherein each of the battery modules is sequentially stacked between the bottom module and the top module. The connecting piece is arranged among the bottom module, the battery modules and the top module in a penetrating mode. The bottom module is used for being connected with a bottom support of the operation machine. The top module is to enclose the battery module adjacent to the top module.

According to the utility model provides a pair of battery box subassembly, battery module includes the battery box. The battery box body comprises a box body side wall and a supporting bottom plate. The bearing bottom plate is connected with the side wall of the box body and forms an open-top box body structure together with the side wall of the box body. And a battery module mounting area is arranged on the bearing bottom plate. The battery module mounting area is used for mounting a battery module.

According to the utility model provides a pair of battery box subassembly, the box lateral wall includes first lateral wall, second lateral wall, third lateral wall and fourth lateral wall. The first side wall is lapped between one end of the third side wall and one end of the fourth side wall. The second side wall is lapped between the other end of the third side wall and the other end of the fourth side wall. The first side wall and the second side wall are parallel to each other. The third side wall and the fourth side wall are parallel to each other. The first side wall and the third side wall are perpendicular to each other.

According to the utility model provides a pair of battery box subassembly, first lateral wall with the interval overlap joint has first baffle and second baffle between the second lateral wall. The support floor is connected between the first partition, the second partition, the first sidewall and the second sidewall.

According to the utility model provides a pair of battery box subassembly, first baffle with third side wall interval sets up. The second partition plate and the fourth side wall are arranged at intervals. A first cavity is formed between the first partition plate and the third side wall, and the first cavities of the battery boxes are mutually butted and communicated to jointly form a first accommodating cavity. A second cavity is formed between the second partition plate and the fourth side wall, and the second cavities of the battery boxes are mutually butted and communicated to form a second accommodating cavity together.

According to the utility model provides a pair of battery box subassembly, be formed with sealed step subassembly on the box lateral wall. The seal step assembly includes an upper seal step and a lower seal step. The upper sealing step is arranged on the upper butt joint surface of the side wall of the box body. The lower sealing step is arranged on the lower butt joint surface of the side wall of the box body.

The overhead sealing step includes a first step and a second step. The second step is located on the inner side of the first step and protrudes to the upper side of the first step, so that a sealing clamping groove is formed on the upper side of the first step.

The lower sealing step comprises a third step and a fourth step. The third step is positioned on the outer side of the fourth step, and the third step protrudes to the lower side of the fourth step to form a sealing clamping block protruding out of the fourth step.

The sealing clamping blocks can be attached and clamped in the adjacent sealing clamping grooves.

According to the utility model provides a pair of battery box subassembly, the connecting piece includes screw rod and nut. The top module, the bottom module and each layer of battery module are correspondingly provided with a plurality of groups of fixing columns. And each group of the fixing columns is respectively and correspondingly provided with a connecting through hole. The screw rod penetrates through the connecting through hole, and the nut is locked and connected to the screw rod, so that the top module, the bottom module and each layer of battery modules are sequentially locked and connected.

According to the utility model provides a pair of battery box subassembly, be provided with the cooling plate in the battery module installation zone. The cooling plate is connected with the battery module and used for cooling the battery module.

According to the utility model provides a pair of battery box subassembly, the bottom module is provided with electricity quick change connecting plug. The electric quick-change connecting plug is matched with an electric quick-change connecting socket on a bottom support of the operation machine. And the top module is provided with a hoisting device.

According to a second aspect of the present invention, there is provided a working machine comprising a battery box assembly as described above.

The utility model provides an in the battery box subassembly, each battery module superposes in proper order in the bottom module with between the top module. The connecting piece is arranged among the bottom module, the battery modules and the top module in a penetrating mode. The bottom module is used for being connected with a bottom support of the operation machine. The top module is to enclose the battery module adjacent to the top module.

Through the structure, the connecting piece is connected among the bottom module, the battery module and the top module in a penetrating mode, so that the bottom module, the battery module and the top module form an integral structure and are connected with a bottom support of the operation machine. Therefore, the fixed frame body does not need to be additionally arranged, the weight of the battery box assembly is greatly reduced, and the cost is reduced. In addition, the number of the battery modules can be automatically adjusted according to actual requirements, and the universality of the battery box assembly is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a battery box assembly provided by the present invention;

FIG. 2 is a schematic front view of the structure of FIG. 1;

FIG. 3 is a side view schematic of the structure of FIG. 1;

FIG. 4 is a schematic top view of the structure of FIG. 1;

fig. 5 is a schematic structural diagram of a battery module in a battery box assembly provided by the present invention;

fig. 6 is a schematic structural diagram of a sealing step assembly of a battery box in a battery box assembly provided by the present invention;

reference numerals:

100. a bottom module; 200. a top module; 300. a connecting member; 400. a battery module; 401. a battery case; 402. a first side wall; 403. a second side wall; 404. a third side wall; 405. a fourth side wall; 406. a bearing bottom plate; 407. a first separator; 408. a second separator; 409. a first accommodation chamber; 410. a second accommodation chamber; 500. a sealing step is arranged on the upper part; 501. a first step; 502. a second step; 600. a sealing step is arranged at the lower part; 601. a third step; 602. a fourth step; 700. and (5) fixing the column.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood as specific cases to those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, without mutual contradiction, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, and the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The following describes a battery box assembly and a working machine provided by an embodiment of the present invention with reference to fig. 1 to 6. It should be understood that the following description is only exemplary of the present invention, and is not intended to limit the present invention in any way.

An embodiment of the first aspect of the present invention provides a battery box assembly, as shown in fig. 1 to 4, the battery box assembly includes: a bottom module 100, a top module 200, a connector 300, and at least one layer of battery modules 400.

Wherein each battery module 400 is stacked in sequence between the bottom module 100 and the top module 200. The connecting member 300 is inserted and connected between the bottom module 100, each battery module 400, and the top module 200. The base module 100 is adapted to be coupled to a shoe of a work machine. The top module 200 serves to enclose the battery module 400 adjacent to the top module 200.

With this arrangement, the connecting member 300 is inserted and connected between the bottom module 100, the battery module 400 and the top module 200, so that the bottom module 100, the battery module 400 and the top module 200 form an integral structure and are connected with the bottom bracket of the working machine. Therefore, the fixing frame body does not need to be additionally configured, the weight of the battery box assembly is greatly reduced, and the cost is reduced. In addition, can adjust battery module 400's quantity by oneself according to actual demand, greatly promote the commonality of battery box subassembly.

In one embodiment of the present invention, the battery module 400 includes a battery case 401. The battery housing 401 includes housing sidewalls and a back plane 406. The support base plate 406 is attached to the side walls of the housing and forms an open top housing structure with the side walls of the housing. A battery module mounting area is provided on the support base 406. The battery module mounting region is used for mounting the battery module.

In one embodiment of the present invention, the side walls of the box body include a first side wall 402, a second side wall 403, a third side wall 404 and a fourth side wall 405. The first sidewall 402 overlaps between one end of the third sidewall 404 and one end of the fourth sidewall 405. The second side wall 403 is overlapped between the other end of the third side wall 404 and the other end of the fourth side wall 405. The first sidewall 402 and the second sidewall 403 are parallel to each other. The third sidewall 404 and the fourth sidewall 405 are parallel to each other. The first sidewall 402 and the third sidewall 404 are perpendicular to each other.

For example, as shown in fig. 5, the first sidewall 402 and the second sidewall 403 have the same structure and size. The first sidewall 402 is spaced from, parallel to, and aligned with the second sidewall 403. The third sidewall 404 and the fourth sidewall 405 are identical in structure and size. The third sidewall 404 is spaced from, parallel to, and aligned with the fourth sidewall 405. One end of the third side wall 404 is overlapped with the left end of the first side wall 402, and the other end is overlapped with the left end of the second side wall 403; the fourth side wall 405 has one end overlapping the right end of the first side wall 402 and the other end overlapping the right end of the second side wall 403. The first sidewall 402 and the third sidewall 404 are perpendicular to each other. Thus, the first sidewall 402, the second sidewall 403, the third sidewall 404 and the fourth sidewall 405 together form a rectangular parallelepiped cavity structure. The supporting base 406 is connected to the inner sides of the first sidewall 402, the second sidewall 403, the third sidewall 404 and the fourth sidewall 405. A battery module mounting area is provided on the support base 406. The battery module is mounted inside the battery module mounting region.

In one embodiment of the present invention, a cooling plate is provided in the battery module mounting region. The cooling plate is connected with the battery module and is used for cooling the battery module.

It should be noted here that the specific material of the battery case 401 is not limited in any way. For example, in one embodiment of the present invention, the first side wall 402, the second side wall 403, the third side wall 404, the fourth side wall 405, and the support base 406 are all aluminum plate-like structures, and are welded to each other to form the battery case 401. Such a battery case 401 is light in weight and low in cost.

In an embodiment of the present invention, a first partition 407 and a second partition 408 are overlapped between the first sidewall 402 and the second sidewall 403. The holding floor 406 is connected between a first partition 407, a second partition 408, a first side wall 402 and a second side wall 403.

Further, in an embodiment of the present invention, the first partition 407 is spaced apart from the third sidewall 404. The second partition 408 is disposed spaced apart from the fourth sidewall 405. A first cavity is formed between the first partition 407 and the third side wall 404, and the first cavities of the battery cases 401 are in butt joint communication with each other to form a first accommodating cavity together. A second cavity is formed between the second partition 408 and the fourth side wall 405, and the second cavities of the battery cases 401 are in butt joint communication with each other to form a second accommodating cavity together.

For example, as shown in fig. 4 and 5, a first partition 407 is provided at an interval inside the third side wall 404, and a second partition 408 is provided at an interval inside the fourth side wall 405. The first partition 407 has one end connected to the first sidewall 402 and the other end connected to the second sidewall 403. The second partition 408 has one end connected to the first sidewall 402 and the other end connected to the second sidewall 403.

The support base 406 is a rectangular plate-shaped structure, and the support base 406 includes four edges, each of which is connected to the first sidewall 402, the first partition 407, the second sidewall 403, and the second partition 408.

A first cavity having an open top-bottom communication is formed between the first separator 407 and the third sidewall 404 of each battery module 400. A second cavity having an open top-bottom communication is formed between the second separator 408 and the fourth side wall 405 of each battery module 400. Each layer of battery modules 400 is stacked in sequence, the first cavities are mutually butted and communicated to form a first accommodating cavity, and the second cavities are mutually butted and communicated to form a second accommodating cavity.

With this structural arrangement, the first accommodation cavity and the second accommodation cavity are used for placing connection harnesses of the battery module or electrical components of the battery box assembly, and the like. Therefore, the energy density of the battery box assembly can be improved, and the volume of the power battery system of the working machine can be reduced.

In an embodiment of the present invention, a sealing step assembly is formed on the side wall of the box body. The seal step assembly includes an upper seal step 500 and a lower seal step 600. The upper sealing step 500 is provided on the upper butt surface of the sidewall of the case. The lower sealing step 600 is disposed on the lower abutting surface of the sidewall of the case.

The overhead sealing step 500 includes a first step 501 and a second step 502. The second step 502 is located inside the first step 501, and the second step 502 protrudes to the upper side of the first step 501, so that the upper side of the first step 501 forms a sealing slot.

The lower sealing step 600 includes a third step 601 and a fourth step 602. The third step 601 is located at an outer side of the fourth step 602, and the third step 601 protrudes to a lower side of the fourth step 602 to form a sealing clamping block protruding from the fourth step 602.

The sealing clamping block can be attached and clamped in the adjacent sealing clamping groove.

For example, as shown in fig. 6, the upper end surface of each casing side wall is an upper abutting surface, and the lower end surface is a lower abutting surface. The upper butt joint surface of each box side wall and the lower butt joint surface of the box side wall adjacent to the upper butt joint surface are in butt joint installation.

Wherein, an upper sealing step 500 is arranged on the upper butt joint surface of each box side wall, and a lower sealing step 600 is arranged on the lower butt joint surface. The upper sealing step 500 has an outer concave-inner convex structure. The lower sealing step 600 is a convex-concave structure.

Specifically, the overhead sealing step 500 includes a first step 501 and a second step 502. The second step 502 is located inside the first step 501, and the second step 502 protrudes to the upper side of the first step 501, so that the upper side of the first step 501 forms a sealing slot. The lower sealing step 600 includes a third step 601 and a fourth step 602. The third step 601 is located at the outer side of the fourth step 602, and the third step 601 protrudes to the lower side of the fourth step 602 to form a sealing cartridge protruding from the fourth step 602. The sealing clamping blocks can be attached and clamped in the adjacent sealing clamping grooves.

When the ladder is installed, the lower end surface of the first ladder 501 is hermetically attached to the upper end surface of the third ladder 601, the inner side surface of the first ladder 501 is hermetically attached to the outer side surface of the fourth ladder 602, and the lower end surface of the second ladder 502 is hermetically attached to the upper end surface of the fourth ladder 602. Therefore, the contact end surfaces of the first step 501 and the third step 601 are located at the outer side, the contact end surfaces of the second step 502 and the fourth step 602 are located at the inner side, and the contact end surfaces of the second step 502 and the fourth step 602 are higher than the contact end surfaces of the first step 501 and the third step 601. From this, can promote the connection leakproofness between each battery box 401, prevent effectively that outside impurity and rainwater etc. from getting into inside the battery box 401, and then effectively protected the battery box subassembly.

In one embodiment of the present invention, the connector 300 includes a screw and a nut. The top module 200, the bottom module 100 and each layer of the battery module 400 are correspondingly provided with a plurality of groups of fixing posts 700. Each set of the fixing posts 700 is correspondingly provided with a connecting through hole. The screw rod penetrates through the connecting through hole, and the nut is locked and connected to the screw rod, so that the top module 200, the bottom module 100 and each layer of battery modules 400 are sequentially locked and connected.

For example, as shown in fig. 4 and 5, in this embodiment, 6 sets of fixing posts 700 are independently and uniformly disposed on the inner sides of the top module 200, the bottom module 100, and each layer of the battery module 400. Each set of the fixing posts 700 is correspondingly provided with a connecting through hole. The screw rod sequentially passes through the corresponding connecting through holes on the top module 200, the bottom module 100 and each layer of battery module 400, and the nut is locked and connected to the screw rod. Thereby, the top module 200, the bottom module 100, and the respective layers of the battery modules 400 are integrated into a single structure.

As can be seen from the above description, the fixing posts 700 are separately provided at the inner sides of the top module 200, the bottom module 100, and the respective layers of the battery modules 400, and are fastened and connected by the bolts and the nuts. The strength of the battery case assembly is higher than that of a battery case structure in which connection through-holes are directly formed in the top module 200, the bottom module 100, and the respective layers of battery modules 400.

It should be noted that the above embodiment is only an exemplary embodiment of the present invention, and does not constitute any limitation to the present invention. That is, the above-described coupling 300 includes, but is not limited to, a stud and a nut.

In one embodiment of the invention, as shown in fig. 1, the bottom module 100 is provided with an electrical quick-change connection plug. The electric quick-change connecting plug is matched with an electric quick-change connecting socket on a bottom support of the operation machine. A lifting device is provided on the top module 200.

When the power needs to be changed, the battery box assembly in the power-shortage state is hoisted and detached through the hoisting device of the top module 200, the battery box assembly in the full-power state is hoisted and installed on a bottom support of the operation machine, and the power quick-change connecting plug of the bottom module 100 is connected to the power quick-change connecting socket to supply power for the operation machine.

An embodiment of the second aspect of the present invention provides a working machine, including the battery box assembly as described above.

For example, the work machine includes a new energy vehicle. The new energy automobile includes the collet. The battery box assembly is mounted to the bottom bracket.

It should be noted herein that the above-described work machine includes, but is not limited to, a new energy vehicle.

Further, since the work machine includes the battery box assembly as described above, it also has the advantages as described above.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A battery box assembly is characterized by comprising a bottom module, a top module, a connecting piece and at least one layer of battery modules,

the battery modules are sequentially stacked between the bottom module and the top module, the connecting piece is connected among the bottom module, the battery modules and the top module in a penetrating mode, the bottom module is used for being connected with a bottom support of a working machine, and the top module is used for sealing the battery modules adjacent to the top module.

2. The battery box assembly of claim 1, wherein the battery module comprises a battery box body, the battery box body comprises box body side walls and a support base plate, the support base plate is connected with the box body side walls and forms a top-opening box body structure together with the box body side walls, a battery module mounting area is arranged on the support base plate, and the battery module mounting area is used for mounting a battery module.

3. The battery box assembly of claim 2, wherein the box side wall comprises a first side wall, a second side wall, a third side wall, and a fourth side wall, the first side wall overlapping between one end of the third side wall and one end of the fourth side wall, the second side wall overlapping between another end of the third side wall and another end of the fourth side wall, the first side wall and the second side wall being parallel to each other, the third side wall and the fourth side wall being parallel to each other, the first side wall and the third side wall being perpendicular to each other.

4. The battery box assembly of claim 3, wherein said first sidewall and said second sidewall are spaced apart from one another with a first divider and a second divider interposed therebetween, said support floor being connected between said first divider, said second divider, said first sidewall and said second sidewall.

5. The battery box assembly of claim 4, wherein the first partition is spaced from the third sidewall, the second partition is spaced from the fourth sidewall, a first cavity is formed between the first partition and the third sidewall, the first cavity of each battery box is in abutting communication with each other to form a first receiving cavity, a second cavity is formed between the second partition and the fourth sidewall, and the second cavity of each battery box is in abutting communication with each other to form a second receiving cavity.

6. The battery box assembly of claim 2, wherein the box sidewall has a seal step assembly formed thereon, the seal step assembly comprising an upper seal step and a lower seal step, the upper seal step being disposed at an upper mating surface of the box sidewall, the lower seal step being disposed at a lower mating surface of the box sidewall,

the upper sealing step comprises a first step and a second step, the second step is positioned at the inner side of the first step and protrudes to the upper side of the first step, so that a sealing clamping groove is formed at the upper side of the first step,

the lower sealing step comprises a third step and a fourth step, the third step is positioned at the outer side of the fourth step, and the third step protrudes to the lower side of the fourth step to form a sealing clamping block protruding out of the fourth step,

7. The battery box assembly of claim 1, wherein the connecting member comprises a screw and a nut, the top module, the bottom module and each layer of the battery modules are correspondingly provided with a plurality of sets of fixing posts, each set of the fixing posts is correspondingly provided with a connecting through hole, the screw is inserted into the connecting through hole, and the nut is locked and connected to the screw, so that the top module, the bottom module and each layer of the battery modules are sequentially locked and connected.

8. The battery box assembly of claim 2, wherein a cooling plate is disposed within the battery module mounting area, the cooling plate being connected to the battery module and serving to cool the battery module.

9. The battery box assembly of claim 1, wherein the bottom module is provided with an electrical quick-change connector plug that mates with an electrical quick-change connector receptacle on a work machine base, and the top module is provided with a lifting device.

10. A work machine, characterized by comprising a battery box assembly according to any one of claims 1 to 9.