CN217426975U

CN217426975U - Battery box body beam body subassembly and battery box

Info

Publication number: CN217426975U
Application number: CN202221159089.2U
Authority: CN
Inventors: 段纷纷; 孙科; 樊耀兵
Original assignee: Farasis Energy Ganzhou Co Ltd; Farasis Energy Zhenjiang Co Ltd
Current assignee: Farasis Energy Ganzhou Co Ltd; Farasis Energy Zhenjiang Co Ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-09-13
Anticipated expiration: 2032-05-13

Abstract

The utility model relates to a battery box roof beam body subassembly and battery box, battery box roof beam body subassembly include the multisection roof beam body and linking bridge, assemble through linking bridge between the one end of the two adjacent sections roof beam bodies, linking bridge can dismantle with the tip of the roof beam body of being connected respectively and be connected. The battery box body comprises a box body and a battery box body beam body assembling mechanism, wherein the beam bodies are respectively welded on the inner side surface of the bottom plate of the box body. The utility model utilizes the connecting bracket to connect the beam bodies, the section beam base body is reserved to the maximum extent, the machining time of the transverse and longitudinal beams of the battery box body is effectively reduced, the production cost of the box body is reduced, and the production efficiency is improved; the utility model discloses can cut apart into the multisection roof beam body with the horizontal longitudinal beam of battery box, utilize linking bridge to couple together multisection roof beam body, guaranteed the battery box at the penetrability of horizontal and vertical not equidirectional all roof beam bodies, make box structural strength higher, mechanical safety performance is good.

Description

Battery box body beam body subassembly and battery box

Technical Field

The utility model relates to a new energy battery technical field, concretely relates to battery box roof beam body subassembly and battery box.

Background

The existing battery box body modules are mainly installed on a cross beam, and the installation modes mainly comprise two modes, wherein one mode is that a cross beam is designed between every two modules, and a module installation structure is designed on the cross beam; the other type of the module is a beam which is shared by a plurality of other modules after reasonable installation and expansion gaps are reserved for the modules, a long and short beam connected with a left side beam and a right side beam is designed at a position without a beam between the two modules for installing the modules, the height of the short beam is consistent with that of a module installation surface on the high beam, and the longitudinal beams are partially designed and increased to improve the rigidity of the whole package. And to the design that has horizontal, longeron on the box simultaneously, horizontal, longeron crossing position mostly is crossbeam and longeron do the incision respectively and dodge the back and weld again, and the machining cost is high, and welding deformation is big.

For improving system integration, partial design adopts the cold drawing integrated under on the box, and integrated mode is mainly as cold drawing integrated in the bottom half as an organic whole, and the business turn over water pipe arranges that the front portion does not have the module regional or direct design is connected with whole car externally, and when great to system size, integral type cold drawing mould is with high costs, the deformation is big, the installation difficulty.

The bottom plate adopts the section bar to piece weld, and the welding leads to warping big, and mounting hole accuracy control is difficult, adopts the welding to accomplish the back machining again to do the mounting hole more, leads to the machining cost high, clearance difficulties such as cutting fluid, aluminium bits, and individual layer punching press board and section bar roof beam spiro union take place the bottom easily and collide with the nut, influence system safety. Meanwhile, the sealing of the sealant has higher requirements on the surface quality of the sealing element, which results in high manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve one kind or several kinds of above-mentioned technical problem, provide a battery box roof beam body subassembly and battery box.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a battery box roof beam body subassembly, includes multisection roof beam body and linking bridge, assembles through linking bridge between the one end of two adjacent sections roof beam bodies, linking bridge can dismantle with the tip of the roof beam body of being connected respectively and be connected.

The beneficial effects of the utility model are that: the utility model utilizes the connecting bracket to connect the beam bodies, the section beam base body is reserved to the maximum extent, the machining time of the transverse longitudinal beam of the battery box body is effectively reduced, the production cost of the box body is reduced, and the production efficiency is improved; the utility model discloses can cut apart into the multisection roof beam body with the horizontal longitudinal beam of battery box, utilize linking bridge to couple together multisection roof beam body, guaranteed the battery box at the penetrability of horizontal and vertical not equidirectional all roof beam bodies, make box structural strength higher, mechanical safety performance is good.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the connecting support and the beam body are mutually inserted, or the connecting support and the beam body are clamped through a tenon-and-mortise structure.

The beneficial effect of adopting the above further scheme is: the connecting support and the beam body can be assembled by adopting a plug-in or tenon-and-mortise structure, so that the assembly structure is more stable and firm.

Furthermore, the connecting support is provided with a plug connector, the connecting support is assembled at the inner side of one end of the beam body through the plug connector in a plugging mode, or the connecting support is assembled at the inner side of the plug connector through one end of the beam body in a plugging mode.

The beneficial effect of adopting the further scheme is that: through set up the plug connector on linking bridge, can peg graft the plug connector inboard at roof beam body one end, also can insert the plug connector inboard with roof beam body one end, can both realize the stable assembly between roof beam body and the linking bridge.

Furthermore, the plug connector comprises one or two of a plug board or a plug block, and the plug block is of a solid structure, a hollow structure, a U-shaped frame structure or a mouth-shaped frame structure.

The beneficial effect of adopting the further scheme is that: the splicing blocks with different structures can be arranged as required, when the splicing plate is adopted, the splicing plate can be inserted into the inner side of one end of the beam body for assembly, and also can be directly attached to the outer side wall of one end of the beam body and then fixed through the first connecting piece; when the solid-structure insertion block is adopted, the insertion block can be inserted into the inner side of one end of the beam body for assembly; when the hollow structure or the U-shaped frame is adopted as the insertion block, the insertion block can be inserted into the inner side of one end of the beam body for assembly, and one end of the beam body can also be inserted into the hollow structure or the U-shaped opening of the insertion block for assembly; when the square frame structure is adopted, the inserting block can be inserted into the inner side of one end of the beam body for assembly.

Furthermore, the connecting support is in a cross structure or a straight structure or a T-shaped structure or an L-shaped structure.

The beneficial effect of adopting the further scheme is that: when two adjacent beam bodies are arranged in a straight line, the two adjacent beam bodies can be connected by adopting a connecting bracket with a straight line structure; when two adjacent beam bodies are arranged in an L shape, a connecting bracket with an L-shaped structure can be adopted; when the three beam bodies are arranged in a T shape, the connecting support with a T-shaped structure can be respectively connected with one ends of the three beam bodies; when the four beam bodies are arranged in a cross shape, the connecting support with the cross structure can be respectively connected with one ends of the four beam bodies.

Furthermore, the connecting support and the end part of the beam body are fixed through a first connecting piece.

The beneficial effect of adopting the further scheme is that: the first connecting piece can adopt bolts, screws and the like, and the connecting support and the end part of the beam body are fastened, so that the stability of the whole structure is facilitated.

The utility model provides a battery box, includes case body and foretell battery box roof beam body assembly devices, the roof beam body is connected respectively on the bottom plate medial surface of case body.

The utility model has the advantages that: the utility model discloses a battery box utilizes the welding roof beam body on the bottom plate medial surface of case body, can avoid adopting the nut phenomenon of colliding with that bolted connection caused, and system security is higher.

Furthermore, one part of the multi-section beam body is a first beam body, the other part of the multi-section beam body is a second beam body, the multi-section first beam body is arranged into a linear cross beam, the multi-section second beam body is arranged into a linear longitudinal beam, the multi-section first beam body and the multi-section second beam body are arranged in a cross mode at the end parts of the multi-section first beam body and the multi-section second beam body, and the cross positions are assembled through the connecting supports.

The beneficial effect of adopting the above further scheme is: the longitudinal beams and the cross beams are connected through the connecting supports, and the structure is compact and stable.

Further, this internal cooling system that is equipped with of case, cooling system includes polylith liquid cooling board, and polylith liquid cooling board sets up on the bottom plate medial surface of case body, be equipped with the blotter between liquid cooling board and the roof beam body, liquid cooling board with it is cotton to be equipped with the buffering bubble between the bottom plate of case body.

The beneficial effect of adopting the further scheme is that: through setting up polylith liquid cooling board, avoid a monoblock liquid cooling board oversize and easy deformation, the difficult problem of installation.

Further, the bottom plate of case body is integrated into one piece structure, still weld on the bottom plate lateral surface of case body and hoist and mount the piece, still be equipped with the strengthening rib on the bottom plate of case body.

The beneficial effect of adopting the further scheme is that: adopt integrated into one piece's bottom plate, avoid the tailor-welded bottom plate to cause welding deformation big scheduling problem. Through setting up hoist and mount piece, convenient hoist and mount. Through setting up the strengthening rib, make the structural stability of case body higher.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a battery box body provided with a battery module according to the present invention;

fig. 2 is a schematic perspective view of the battery box of the present invention without a battery module;

fig. 3 is a schematic diagram of a three-dimensional explosion structure of the battery box body and beam body assembly of the present invention;

FIG. 4 is an enlarged view of part A of FIG. 3;

FIG. 5 is an enlarged view of the portion B in FIG. 3;

fig. 6 is a schematic perspective view of the first connecting bracket of the present invention;

fig. 7 is a schematic top view of the first connecting bracket of the present invention;

fig. 8 is a schematic perspective view of a second connecting bracket according to the present invention;

fig. 9 is a schematic top view of a second connecting bracket according to the present invention;

fig. 10 is a schematic view of a three-dimensional explosion structure of the battery box of the present invention;

fig. 11 is a schematic top view of the battery box of the present invention;

FIG. 12 is a schematic sectional view of the structure of FIG. 11 taken at G-G;

FIG. 13 is a schematic cross-sectional view of F-F of FIG. 11;

FIG. 14 is a cross-sectional view of the assembly of the liquid cooled panels with the base plate;

fig. 15 is a schematic structural view of a bottom plate of the battery box of the present invention;

fig. 16 is a schematic view of the bottom structure of the liquid cooling plate of the present invention.

In the drawings, the reference numbers indicate the following list of parts:

100. a battery module;

200. a tank body; 201. a boundary beam; 202. a first beam body; 203. a second beam body; 204. a first connecting bracket; 205. a second connecting bracket; 208. a connecting channel; 209. chamfering; 210. installing a support plate; 211. an ear plate; 212. a plug-in unit;

300. a liquid-cooled plate; 301. a water inlet pipeline; 302. a water outlet pipeline; 303. a water inlet nozzle; 304. a water outlet nozzle; 305. buffering foam; 306. a second connecting member;

400. a base plate; 401. reinforcing ribs; 402. welding the bottom plate with the edge beam; 403. welding the bottom plate and the longitudinal beam; 404. and (4) hoisting the piece.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1 to 9, the battery box body beam assembly of the present embodiment includes multiple sections of beam bodies and connecting brackets, one end of each of two adjacent sections of beam bodies is assembled through the connecting bracket, and the connecting brackets are detachably connected to the end portions of the connected beam bodies respectively.

The assembly relation between the connecting support and the beam body of this embodiment can adopt, peg graft each other between connecting support and the beam body, perhaps connect through tenon fourth of the twelve earthly branches structure joint between connecting support and the beam body. The connecting support and the beam body can be assembled by adopting a plug-in or tenon-and-mortise structure, so that the assembly structure is more stable and firm.

Specifically, as shown in fig. 2 to 9, the connection bracket of this embodiment is provided with a plug connector 212, and the connection bracket is assembled by inserting the plug connector 212 into an inner side of one end of the beam, or the connection bracket is assembled by inserting one end of the beam into an inner side of the plug connector 212. Through set up the plug connector on linking bridge, can peg graft the plug connector inboard at roof beam body one end, also can insert the plug connector inboard with roof beam body one end, can both realize the stable assembly between roof beam body and the linking bridge.

The plug connector 212 comprises one or two of a plug board or a plug block, and the plug block is of a solid structure, a hollow structure, a U-shaped frame structure or a mouth-shaped frame structure. The splicing blocks with different structures can be arranged as required, when the splicing plate is adopted, the splicing plate can be inserted into the inner side of one end of the beam body for assembly, and also can be directly attached to the outer side wall of one end of the beam body and then fixed through the first connecting piece; when the solid-structure insertion block is adopted, the insertion block can be inserted into the inner side of one end of the beam body for assembly; when the inserting block with a hollow structure or a U-shaped frame is adopted, the inserting block can be inserted into the inner side of one end of the beam body for assembly (the opening of the U-shaped frame in the figures 6-9 is outward, or the structure shown in the figures 6-9 can be adopted), and one end of the beam body can also be inserted into the hollow structure or the U-shaped opening of the inserting block for assembly (the opening of the U-shaped frame in the figures 6-9 is outward); when the square frame structure is adopted, the inserting block can be inserted into the inner side of one end of the beam body for assembly.

As shown in fig. 3 to 5, the section used for the beam body in this embodiment has one or more connecting channels 208, and the connector 212 on the connecting bracket can be directly inserted into the corresponding connecting channel 208 by using the structural characteristics of the section used for the beam body, so that the structure is simple, the installation is convenient, the structural advantages of the section used for the beam body are utilized, the processing technology is more convenient, and the production cost is lower.

Several optional structural shapes of the connecting bracket of the present embodiment are that the connecting bracket is in a cross-shaped structure (as shown in fig. 3, 5-7) or a straight-line structure or a T-shaped structure (as shown in fig. 3, 4, 8 and 9) or an L-shaped structure. When two adjacent beam bodies are arranged in a straight line, the two adjacent beam bodies can be connected by adopting a connecting bracket with a straight line structure; when two adjacent beam bodies are arranged in an L shape, a connecting bracket with an L-shaped structure can be adopted; when the three beams are arranged in a T shape, the connecting bracket which can adopt a T-shaped structure is respectively connected with one end of each of the three beams, as shown in fig. 3, 8, 9 and 4; when the four beam bodies are arranged in a cross shape, the connecting support with a cross structure can be respectively connected with one ends of the four beam bodies, as shown in fig. 3, 5-7.

For the sake of easy understanding, the connection bracket of the crisscross structure in the present embodiment is the first connection bracket 204, as shown in fig. 3, 5 to 7. The connecting bracket of the T-shaped structure in this embodiment is a second connecting bracket 205, as shown in fig. 3, 8, 9, and 4.

As shown in fig. 6 to 9, the connecting bracket of the present embodiment may have a chamfer 209 at the corner, which is more advantageous for quick assembly.

In order to further fasten the connecting bracket and the beam body, the connecting bracket and the end part of the beam body are further fixed through a first connecting piece. The first connecting piece can adopt bolts, screws and the like, and the connecting support is fastened with the end part of the beam body, so that the stability of the whole structure is facilitated.

As shown in fig. 4 to 5, after the connecting bracket is assembled with the beam bodies, the height of the connecting bracket is adapted to the height of two adjacent beam bodies, and the width and the length of the connecting bracket are respectively adapted to the width of two adjacent beam bodies, so that the height, the width and the length of the connecting bracket are not too abrupt, and the assembly of the battery module and the liquid cooling plate is not affected.

According to the beam body assembly, the beam bodies are connected by the connecting support, the section beam base body is reserved to the greatest extent, the machining time of the transverse beam and the longitudinal beam of the battery box body is effectively reduced, the production cost of the box body is reduced, and the production efficiency is improved; the utility model discloses can cut apart into the multisection roof beam body with the horizontal longitudinal beam of battery box, utilize linking bridge to couple together multisection roof beam body, guaranteed the battery box at the penetrability of horizontal and vertical not equidirectional all roof beam bodies, make box structural strength higher, mechanical safety performance is good.

Example 2

As shown in fig. 1 to 16, the battery case of the present embodiment includes a case body 200 and a mechanism for attaching the battery case beams of embodiment 1 to the inner surface of the bottom plate 400 of the case body 200. The utility model has the advantages of utilize the welding roof beam body on the bottom plate medial surface of case body, can avoid adopting the nut phenomenon of colliding with that bolted connection caused, the system security is higher.

As shown in fig. 2, an ear plate 211 may be disposed at the bottom of one or both sides of the beam, and the ear plate 211 may be fixed on the inner side of the bottom plate 400.

As shown in fig. 2 and 3, the case body 200 of the present embodiment is provided with a boundary beam 201 on the periphery, an installation support plate 210 may be disposed on the inner side wall of the boundary beam 201, and the other end of the beam may be assembled on the installation support plate 210, which is beneficial to the assembly of the other end of the beam.

Specifically, in order to better explain the assembly relationship of the multiple sections of the girder in the box body 200, a part of the multiple sections of the girder in embodiment 1 may be divided into a first girder 202, another part of the multiple sections of the girder may be divided into a second girder 203, the multiple sections of the first girder 202 are arranged as linear beams, the multiple sections of the second girder 203 are arranged as linear stringers, the multiple sections of the first girder 202 and the multiple sections of the second girder 203 are arranged in a cross at respective ends, and the cross positions are assembled through the connecting brackets. The longitudinal beams and the cross beams are connected through the connecting supports, and the structure is compact and stable.

Specifically, as shown in fig. 3 to 9, when the cross beam and the longitudinal beam cross, the cross beam and the longitudinal beam can be connected by using a first connecting bracket 204, and when the cross beam and the longitudinal beam cross in a T shape, the cross beam and the longitudinal beam can be connected by using a second connecting bracket 205.

As shown in fig. 10 to 13, a cooling system is disposed in the box body of this embodiment, the cooling system includes a plurality of liquid-cooled plates 300, a water inlet pipeline 301 and a water outlet pipeline 302, and the plurality of liquid-cooled plates 300 are respectively connected to the water inlet pipeline 301 and the water outlet pipeline 302; the plurality of liquid cooling plates 300 are arranged on the inner side face of the bottom plate of the box body 200, the liquid cooling plates 300 are fixedly connected with the beam body through second connecting pieces 306, a buffer cushion is arranged between the liquid cooling plates 300 and the beam body, and buffer foam 305 is arranged between the liquid cooling plates 300 and the bottom plate of the box body 200. The box body 200 is also provided with a water inlet nozzle 303 and a water outlet nozzle 304, the water inlet pipeline 301 is connected with the water inlet nozzle 303, and the water outlet pipeline 302 is connected with the water outlet nozzle 304. Through setting up polylith liquid cooling board, avoid a monoblock liquid cooling board oversize and easy deformation, the difficult problem of installation.

A further scheme of this embodiment is that, as shown in fig. 15, the bottom plate 400 of the box body 200 is an integrally formed structure, a hanging piece 404 is further welded on the outer side surface of the bottom plate 400 of the box body 200, and the bottom plate 400 of the box body 200 is further provided with a reinforcing rib 401. The welding position of the bottom plate 400 and the beam body is shown as a bottom plate and longitudinal beam welding line 403 in fig. 16, and the welding position of the bottom plate 400 and the edge beam is shown as a bottom plate and edge beam welding line 402 in fig. 16. Adopt integrated into one piece's bottom plate, avoid the tailor-welded bottom plate to cause welding deformation big scheduling problem. Through setting up hoist and mount piece, convenient hoist and mount. Through setting up the strengthening rib, make the structural stability of case body higher.

An alternative of this embodiment is that a plurality of sets of battery modules 100 may also be provided within the case body 200, and a set of battery modules 100 may be provided within a plurality of assembly regions formed by the cross beams and the longitudinal beams crossing each other, respectively.

In the description of the present invention, it should be understood that the terms "longitudinal beam", "cross beam", "length", "width", "height", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that 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 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a battery box roof beam body subassembly which characterized in that, includes multisection roof beam body and linking bridge, assembles through linking bridge between the one end of two sections adjacent roof beam bodies, linking bridge can dismantle with the tip of the roof beam body that connects respectively and be connected.

2. The battery box body beam body assembly according to claim 1, wherein the connecting support and the beam body are inserted into each other, or the connecting support and the beam body are clamped through a mortise and tenon joint structure.

3. The battery box body beam assembly according to claim 1, wherein the connecting bracket is provided with a plug connector (212), and the connecting bracket is assembled by plugging the plug connector (212) inside one end of the beam body, or the connecting bracket is assembled by plugging one end of the beam body inside the plug connector (212).

4. The battery box body beam assembly according to claim 3, wherein the plug connector (212) comprises one or two of a plug board or a plug block, and the plug block is a solid structure, a hollow structure, a U-shaped frame structure or a square frame structure.

5. The battery box body beam assembly according to claim 1, wherein the connecting bracket is in a crisscross structure, a straight structure, a T-shaped structure or an L-shaped structure.

6. The battery box body beam assembly of claim 1, wherein the connecting bracket is further fixed to the end of the beam body by a first connecting member.

7. A battery case characterized by comprising a case body (200) and the assembly mechanism of the battery case beam body of any one of claims 1 to 6, wherein the beam bodies are respectively welded on the inner side surfaces of a bottom plate (400) of the case body (200).

8. The battery box body according to claim 7, wherein one part of the plurality of the beam bodies is a first beam body (202), the other part of the plurality of the beam bodies is a second beam body (203), the plurality of the first beam bodies (202) are arranged into linear beams, the plurality of the second beam bodies (203) are arranged into linear beams, the plurality of the first beam bodies (202) and the plurality of the second beam bodies (203) are arranged in a cross manner at respective ends, and the cross positions are assembled through the connecting brackets.

9. The battery box body as claimed in claim 7, wherein a cooling system is arranged in the box body, the cooling system comprises a plurality of liquid cooling plates (300), the plurality of liquid cooling plates (300) are arranged on the inner side surface of the bottom plate (400) of the box body (200), a buffer cushion is arranged between the liquid cooling plates (300) and the beam body, and buffer foam (305) is arranged between the liquid cooling plates (300) and the bottom plate (400) of the box body (200).

10. The battery box body as claimed in claim 7, wherein the bottom plate (400) of the box body (200) is of an integrally formed structure, a hoisting piece (404) is welded on the outer side surface of the bottom plate (400) of the box body (200), and a reinforcing rib (401) is further arranged on the bottom plate (400) of the box body (200).