CN209461526U - Battery packs and vehicles - Google Patents

Abstract

The utility model discloses a kind of battery pack and vehicles, and wherein battery pack includes: lower case, lower layer's battery modules, the double-deck module bracket component and upper layer battery modules.Lower case crossbeam is provided in lower case；The two sides of lower layer's battery modules are provided with the first installation side plate, and lower layer's battery modules are arranged between two lower case crossbeams, and the first installation side plate is suitable for fixing with lower case crossbeam；The double-deck module bracket component includes: that the double-deck module bracket and the threaded fastener with the cooperation of the double-deck module bracket, the double-deck module bracket are supported on lower case crossbeam；Upper layer battery modules are arranged in the double-deck module bracket, the two sides of upper layer battery modules are provided with the second installation side plate, and threaded fastener is suitable for sequentially passing through the second installation side plate, the double-deck module bracket and the first installation side plate from top to bottom and fastens with lower case crossbeam.The double-deck module bracket component in the battery pack can more stablize it is firm bilayer cells mould group is fixed in lower case, and installation process is more convenient.

Description

Battery packs and vehicles

technical field

The utility model relates to the technical field of vehicles, in particular to a battery pack and a vehicle.

Background technique

The installation form of the double-layer battery module in the traditional battery pack is cumbersome, and the traditional double-layer module bracket cannot stably fix the upper-layer battery module and the lower-layer battery module in the battery pack, and the installation and fixing process is relatively inconvenient. Room for improvement.

Utility model content

In view of this, the present invention aims to provide a battery pack, the double-layer module bracket assembly in the battery pack can more stably and firmly fix the double-layer battery module on the lower casing, and the installation and fixing process is convenient.

In order to achieve the above object, the technical scheme of the present utility model is achieved in this way:

A battery pack, comprising: a lower casing, a lower casing beam is arranged in the lower casing; a lower battery module, the two sides of the lower battery module are provided with first installation side plates, the lower battery module The assembly is arranged between the two lower casing beams, and the first installation side plate is suitable for being fixed with the lower casing beams; the double-layer module bracket assembly includes: a double-layer module bracket assembly. a layer module bracket and a threaded fastener matched with the double-layer module bracket, the double-layer module bracket is supported on the lower casing beam; an upper-layer battery module, the upper-layer battery module is arranged on On the double-layer module bracket, the two sides of the upper battery module are provided with second installation side plates, and the threaded fasteners are adapted to pass through the second installation side plates, the The double-layer module bracket and the first installation side plate are fastened with the lower casing beam.

Further, the double-layer module bracket includes: bracket side plates on both sides and a connecting plate connected between the two bracket side plates, the bracket side plates are supported on the lower shell beam, and the connection plate is The plate is located on the lower battery module, the upper battery module is arranged on the connecting plate and is located between the two bracket side plates, and the threaded fastener is suitable for passing through the bracket side The plate is fastened with the lower casing beam.

Further, the second installation side plate is arranged on the upper surface of the bracket side plate, and the first installation side plate is sandwiched between the lower surface of the bracket side plate and the upper surface of the lower casing beam .

Further, the middle part of the bracket side plate has a fixing groove running through the length direction of the bracket side plate, and the two sides of the connecting plate are formed with plug ends, and the plug ends are matched in the fixing groove.

Further, the double-layer module bracket assembly further includes: an end plate, the end plate is connected between the same-side ends of the two bracket side plates, and the end plate is fixed to the lower casing.

Further, the end plate includes: an end plate body and a fixing plate extending outward from both sides of the end plate body, the fixing plate is fixed to the end wall of the bracket side plate, and a fixing plate is arranged below the fixing plate. The vertical reinforcing flanging formed by folding along the edges of both sides of the end plate body in a direction away from the double-layer module bracket, and the lower edge of the end plate body is provided with a direction away from the double-layer module bracket. The longitudinal reinforcement flanging is formed by folding in the direction, and the vertical reinforcement flanging is connected with the longitudinal reinforcement flanging.

Further, the lower wall part of the side plate of the bracket is upwardly recessed to form an avoidance gap, and fixing holes are provided on the part of the first installation side plate and the lower casing beam corresponding to the avoidance gap.

Further, the battery pack further includes: a connecting bracket plate, the connecting bracket plate is connected between two adjacent two-layer module brackets.

Further, the connecting bracket plate includes: a transverse plate and a longitudinal plate, the transverse plate is connected between the corresponding bracket side plates of two adjacent double-layer module brackets, and the longitudinal plate is connected at between the transverse plates.

Compared with the prior art, the battery pack of the present invention has the following advantages:

In the battery pack of the present invention, the double-layer module bracket assembly in the battery pack can more stably and firmly fix the double-layer battery module on the lower casing, and the installation and fixing process is convenient.

Another object of the present invention is to provide a vehicle, including the above-mentioned battery pack, the battery pack of the vehicle has a larger charge capacity, and the double-layer module bracket assembly in the battery pack can more stably and reliably connect the double-layer battery The module is fixed on the lower casing, and the installation and fixing process is convenient.

Description of drawings

The accompanying drawings that constitute a part of the present invention are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a partial structural schematic diagram of a lower case and a double-layer battery module according to an embodiment of the present invention;

2 is a partial structural schematic diagram of a double-layer module bracket assembly according to an embodiment of the present invention;

3 is a partial structural schematic diagram of a double-layer module bracket assembly according to an embodiment of the present invention.

Description of reference numbers:

1- Lower case, 11- Lower case beam, 2- Lower battery module, 21- First installation side plate, 3- Double-layer module bracket assembly, 31- Double-layer module bracket, 32- Screw fastening parts, 4-upper battery module, 41-second installation side plate, 311-support side plate, 312-connection plate, 3111-fixing slot, 3121-plug end, 33-end plate, 331-end plate body, 332-Fixing plate, 333-Vertical reinforcement flange, 334-Vertical reinforcement flange, 3112-Avoid gap, 211-Fixing hole, 5-Connecting bracket plate, 51-Transverse plate, 52-Vertical plate, 3113-Weight reduction Cavity, 3114-Bracket Side Plate Weight Reduction Holes.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

The battery pack according to the embodiment of the present invention will be described below with reference to FIGS. 1-3 .

The battery pack according to the embodiment of the present invention may include: a lower casing 1 , a lower battery module 2 , a double-layer module bracket assembly 3 and an upper battery module 4 .

As shown in FIG. 1 , the lower casing 1 is provided with a plurality of parallel lower casing beams 11 . In order to improve the overall charge of the battery pack, a double-layer battery module is arranged inside the battery pack in the embodiment of the present invention, wherein the lower battery module 2 is arranged between two adjacent lower case beams 11 . And in order to make the charge amount of the lower battery module 2 larger, the present invention sets the lower battery module 2 into the form of a long module (a battery module with a larger length), in order to facilitate the fixing of the lower battery module 2, First installation side plates 21 are provided at the two edges of the lower battery module 2 , and the first installation side plates 21 are suitable for being fixed with the lower casing beam 11 , so as to stably fix the lower battery module 2 on the lower casing 1 . superior.

Further, in order to enable the upper battery module 4 to be stably arranged on the lower battery module 2, the present invention also provides a double-layer module bracket assembly 3, and the double-layer module bracket assembly 3 includes: a double-layer module bracket 31 and the threaded fasteners 32 matched with the double-layer module bracket 31 . The double-layer module bracket 31 is suitable for being supported on the lower shell beam 11 to facilitate the arrangement and fixation of the double-layer module bracket 31 .

The upper battery module 4 is arranged on the double-layer module bracket 31 , the upper battery module 4 is also a long module, and second installation side plates 41 are provided on both sides of the upper battery module 4 . Personnel are suitable to use the threaded fasteners 32 to sequentially pass through the second installation side plate 41, the double-layer module bracket 31 and the first installation side plate 21 from top to bottom, and finally fasten with the lower casing beam 11, so that the The upper-layer battery module 4 , the double-layer module bracket assembly 3 and the lower-layer battery module 2 are stably arranged on the lower casing 1 . As a result, the fixing effect can be better, so that the double-layer module bracket assembly 3 can be more stably arranged on the lower casing beam 11, so as to cooperate with the first installation side plate 21 and the second installation side plate 41 to install the upper battery module The group 4 and the lower battery module 2 are more stably arranged on the lower casing 1 .

Of course, the present invention is not limited to this, the upper battery module 4 and the lower battery module 2 can also be battery modules that are not long modules, as long as they meet the matching form with the double-layer module bracket assembly 3 .

In addition, the same threaded fastener 32 is used to fix the upper battery module 4, the double-layer module bracket assembly 3 and the lower battery module 2 at the same time to form a fixed form of three-layer fastening, which is more convenient for installation, disassembly and maintenance.

According to the battery pack of the embodiment of the present invention, the double-layer module bracket assembly 3 in the battery pack can more stably and firmly fix the double-layer battery module on the lower casing 1, and the installation and fixing process is convenient.

With reference to the embodiment shown in FIGS. 1 to 3 , the double-layer module bracket 31 includes: bracket side plates 311 on both sides and a connecting plate 312 connected between the two bracket side plates 311 , and the bracket side plates 311 are supported on the lower shell beam 11, so that the connecting plate 312 can be located on the lower battery module 2, and the upper battery module 4 is arranged on the connecting plate 312 between the two bracket side plates 311, and the threaded fasteners 32 are suitable for passing through The bracket side plate 311 is fastened with the lower casing beam 11 to stably fix the double-layer module bracket 31 on the lower casing beam 11 , so that the double-layer module bracket 31 can stably limit the lower battery module 2 and stably support the upper battery module 4 .

Further, the second installation side plate 41 is disposed on the upper surface of the bracket side plate 311 and closely fits with the upper surface of the bracket side plate 311 , and the first installation side plate 21 is sandwiched between the lower surface of the bracket side plate 311 and the lower shell between the upper surfaces of the body beam 11 . During installation, the threaded fasteners 32 are adapted to pass through the first installation side plate 21 , the bracket side plate 311 , and the second installation side plate 41 in sequence, and finally fix the upper battery module 4 stably on the double-layer module bracket 31, and stably fix the double-layer module bracket 31 on the lower shell beam 11. In addition, the threaded fasteners 32 also act as fasteners for the lower battery module 2 , so as to stably and firmly fix the lower battery module 2 on the lower casing beam 11 .

Referring to FIG. 2 , in conjunction with the embodiments shown in FIGS. 1 and 3 , the middle parts of the opposite surfaces of the two bracket side plates 311 have a fixing groove 3111 extending through the length direction of the bracket side plates 311 , and the two sides of the connecting plate 312 are formed with insertion holes 3111 . The terminal 3121 and the plug terminal 3121 are matched in the fixing groove 3111 . Preferably, the plug end 3121 can be welded and fixed with the fixing groove 3111 to ensure the connection stability of the two, thereby ensuring the overall stability of the double-layer module bracket 31 .

As shown in FIGS. 1-3 , in order to further reduce the weight of the double-layer module bracket 31 to improve the energy density of the battery pack, the bracket side plate 311 is provided with a weight-reducing cavity 3113 structure, and the bracket side plate 311 is also provided with There are weight-reducing holes 3114 in the side plate of the bracket through its thickness. Thereby, the weight of the bracket side plate 311 can be effectively reduced.

Preferably, the weight-reducing hole 3114 of the side plate of the bracket can be an isosceles trapezoid structure. Therefore, the strength of the bracket side plate 311 can be effectively ensured while reducing the weight, so as to ensure the stability of the arrangement of the double-layer module bracket 31 .

Further, the connecting plate 312 is provided with a connecting plate weight-reducing hole, so as to effectively reduce the weight of the connecting plate 312 without affecting the supporting strength of the connecting plate 312, thereby reducing the weight of the double-layer module bracket 31, so as to realize the battery pack Lightweight purpose.

1 and 3, the double-layer module bracket assembly 3 further includes: an end plate 33, the end plate 33 is connected between the same side ends of the two bracket side plates 311, and the end plate 33 is connected to the lower shell 1 is fixed to connect and fix the double-layer module bracket 31 on the lower shell 1, so that the lower shell 1 and the double-layer module bracket 31 form a stable whole, thereby improving the setting stability of the double-layer module bracket 31 , so that the upper-layer battery module 4 can be more stably arranged on the double-layer module bracket 31 .

Further, as shown in FIGS. 1 and 3 , the end plate 33 includes an end plate body 331 and a fixing plate 332 extending outward from both sides of the end plate body 331 , and the fixing plate 332 is adapted to be connected with the end wall of the bracket side plate 311 . It can be fixed by screwing, of course, it can also be fixed by welding. Thus, the end plate 33 can be stably connected to the bracket side plate 311 . Below the fixing plate 332, a vertical reinforcing flange 333 is formed by folding along the two sides of the end plate body 331 in a direction away from the double-layer module bracket 31. The vertical reinforcing flange 333 can effectively increase the strength of the end plate 33. , in order to improve the stability of its setting, and the vertical reinforcement flange 333 also plays a certain strengthening role on the fixed plate 332, so that the fixed plate 332 can be connected with the bracket side plate 311 more stably, thereby improving the connection between the end plate 33 and the side plate 311. The connection stability between the bracket side plates 311 and the overall arrangement stability of the double-layer module bracket assembly 3 .

Further, the lower edge of the end plate body 331 is provided with a longitudinal reinforcing flange 334 formed by folding in a direction away from the double-layer module bracket 31 . , and the two are suitable for screwing or welding, so as to strengthen the connection between the flange 334 and the bottom wall of the lower casing 1 in the longitudinal direction, and connect the double-layer module bracket assembly 3 to the lower casing 1 as a whole, so that the The setting stability of the double-layer module bracket assembly 3 is effectively improved.

The vertical reinforcing flange 333 is connected with the vertical reinforcing flange 334 . Therefore, the vertical reinforcing flange 333 and the vertical reinforcing flange 334 form a complete frame support body, which can support and strengthen the end plate 33 more stably, so as to ensure the installation stability of the end plate 33 .

According to some embodiments of the present invention, referring to FIGS. 1 to 3 , in order to ensure the installation stability of the lower battery module 2 , except for the upper battery module 4 , the double-layer module bracket 31 , the lower battery module 2 and the lower battery module 2 In addition to using the long threaded fasteners 32 between the shell beams 11 for three-layer fastening, short threaded fasteners 32 are also used between the lower battery module 2 and the lower casing beam 11 for two-layer tightening. to ensure that the lower battery module 2 is more firmly fixed.

Preferably, both the long threaded fasteners 32 and the short threaded fasteners 32 can use fastening bolts to facilitate installation and disassembly.

The lower wall portion of the bracket side plate 311 is recessed upward to form an avoidance gap 3112. The avoidance gap 3112 is provided to avoid the above-mentioned short threaded fasteners 32 that are only used for two-layer fastening, so that the double The membrane group bracket can be more stably arranged on the lower casing beam 11, and the part of the first installation side plate 21 corresponding to the avoidance gap 3112 and the lower casing beam 11 are provided with fixing holes 211, so as to facilitate short thread tightening The member 32 can fasten the first installation side plate 21 and the lower casing beam 11 from the fixing hole 211, so as to facilitate installation and fixation.

As shown in FIG. 1 and FIG. 3 , the battery pack further includes: a connecting bracket plate 5, which is used to connect two adjacent double-layer battery modules to ensure that the two double-layer battery modules can be set upright . In addition, the connecting bracket plate 5 can also connect the two double-layer battery modules into a whole, so as to ensure the stability of the overall arrangement of the two.

Wherein, the connecting bracket plate 5 is connected between two adjacent double-layer module brackets 31, so as to connect the two double-layer module brackets 31 into a whole, so that the two double-layer membrane module brackets can be respectively arranged on the two double-layer membrane group brackets. The upper battery module 4 and the lower battery module 2 on 31 can be more stably arranged in the battery pack.

Further, the connecting bracket plate 5 includes: a transverse plate 51 and a longitudinal plate 52, and the transverse plate 51 is connected between the corresponding bracket side plates 311 of the two adjacent double-layer module brackets 31, so as to ensure two double For the connection strength of the layer module brackets 31 , the longitudinal plates 52 are connected between the transverse plates 51 to ensure the connection strength of the two double-layer module brackets 31 in the longitudinal direction. Therefore, by strengthening the connection between the two double-layer module brackets 31 in the horizontal and vertical directions by the connecting bracket plate 5, the connection stability between the two can be effectively increased, and the overall arrangement stability of the double-layer battery module can be improved. better.

The transverse plate 51 is suitable for pressing against the second installation side plate 41, and at the same time, the longer threaded fasteners 32 are used to sequentially pass through the transverse plate 51, the second installation side plate 41, the bracket side plate 311 and the first side plate 311. The side plate 21 is installed and fixed with the lower casing beam 11 to form a four-layer fixed form. Therefore, the installation is more convenient, and the components can be arranged more compactly, so that the strength of the double-layer module bracket assembly 3 is higher and the overall stability is better.

A vehicle according to another embodiment of the present invention includes the battery pack described in the above embodiments. Other structures of the vehicle, such as transmission, braking system, steering system, etc., are in the prior art and are well known to those skilled in the art, so other structures of the vehicle will not be described in detail here.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the scope of protection of the present invention.

Claims (10)

1. a kind of battery pack characterized by comprising

Lower case (1), the lower case (1) is interior to be provided with lower case crossbeam (11)；

The two sides of lower layer's battery modules (2), lower layer's battery modules (2) are provided with the first installation side plate (21), the lower layer Battery modules (2) be arranged between two lower case crossbeams (11), first installation side plate (21) be suitable for it is described under Shell crossbeam (11) is fixed；

The double-deck module bracket component (3), it is described bilayer module bracket component (3) include: the double-deck module bracket (31) and with institute The threaded fastener (32) of the double-deck module bracket (31) cooperation is stated, it is horizontal that the bilayer module bracket (31) is supported on the lower case On beam (11)；

Upper layer battery modules (4), upper layer battery modules (4) setting is on the double-deck module bracket (31), the upper layer The two sides of battery modules (4) are provided with the second installation side plate (41), and the threaded fastener (32) is suitable for successively wearing from top to bottom Cross second installation side plate (41), the double-deck module bracket (31) and first installation side plate (21) and with it is described under Shell crossbeam (11) fastening.

2. battery pack according to claim 1, which is characterized in that the bilayer module bracket (31) includes: two side stands Side plate (311) and the connecting plate (312) being connected between two rack side plates (311), rack side plate (311) branch Support is on the lower case crossbeam (11), and the connecting plate (312) is located on lower layer's battery modules (2), the upper layer Battery modules (4) are arranged on the connecting plate (312) and are located between two rack side plates (311), and the screw thread is tight Firmware (32) is adapted to pass through the rack side plate (311) to fasten with the lower case crossbeam (11).

3. battery pack according to claim 2, which is characterized in that second installation side plate (41) is arranged in the bracket The upper surface of side plate (311), first installation side plate (21) be folded in the rack side plate (311) lower surface and it is described under Between the upper surface of shell crossbeam (11).

4. battery pack according to claim 2, which is characterized in that the middle part of the rack side plate (311), which has, runs through institute The fixing groove (3111) of the length direction of rack side plate (311) is stated, the two sides of the connecting plate (312) are formed with inserted terminal (3121), inserted terminal (3121) cooperation is in the fixing groove (3111).

5. battery pack according to claim 2, which is characterized in that the bilayer module bracket component (3) further include: end plate (33), the end plate (33) is connected between the same side of two rack side plates (311), the end plate (33) and it is described under Shell (1) is fixed.

6. battery pack according to claim 5, which is characterized in that the end plate (33) include: end plate body (331) and From the outwardly directed fixed plate in the end plate body (331) two sides (332), the fixed plate (332) and the rack side plate (311) end wall is fixed, and is provided with below the fixed plate (332) along the end plate body (331) both sides of the edge to far from institute State the double-deck module bracket (31) direction fold is formed by it is vertical reinforce flange (333), the end plate body (331) it is following Edge is provided with to far from double-deck module bracket (31) the direction fold and is formed by longitudinally reinforced flange (334), described vertical Reinforce flange (333) to be connected with the longitudinally reinforced flange (334).

7. battery pack according to claim 2, which is characterized in that the lower wall portion of the rack side plate (311) is concave up Fall into be formed and avoid notch (3112), corresponding with evacuation notch (3112) part first installation side plate (21) and Fixation hole (211) are provided on the lower case crossbeam (11).

8. battery pack according to claim 2, which is characterized in that further include: connecting bracket plate (5), the connecting bracket Plate (5) is connected between the double-deck module bracket (31) of adjacent two.

9. battery pack according to claim 8, which is characterized in that the connecting bracket plate (5) include: transverse plate (51) and Longitudinal plate (52), the transverse plate (51) are connected to the corresponding bracket of the double-deck module bracket (31) of adjacent two Between side plate (311), the longitudinal plate (52) is connected between the transverse plate (51).

10. a kind of vehicle, which is characterized in that including battery pack according to claim 1 to 9.