CN219163585U

CN219163585U - Battery pack and power device

Info

Publication number: CN219163585U
Application number: CN202223424803.9U
Authority: CN
Inventors: 贾小庆; 高升
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-09
Anticipated expiration: 2032-12-20

Abstract

The utility model relates to the technical field of batteries, and particularly discloses a battery pack and a power device, wherein the battery pack comprises: the shell is internally provided with a supporting beam, the supporting beam is used for dividing the internal space of the shell into a first cavity and a second cavity, the first cavity is used for placing the battery cell module, and the second cavity is used for placing the electrical appliance assembly; the fixing part is arranged in the second cavity and is connected with the side wall of the supporting beam; the plug-in part is arranged on the fixed part and is used for being connected with the electrical appliance assembly; one end of the FPC is connected with the plug-in connection part, and the other end of the FPC is connected with the cell module. According to the utility model, the support beam is arranged in the battery pack, the support beam separates the plug-in part from the cell module, the plug-in part is arranged on the side wall of the support beam, one end of the plug-in part is connected with the FPC, the space arrangement of the FPC in the battery pack is optimized, and meanwhile, the problem of extrusion of the battery pack after the expansion of the FPC is avoided.

Description

Battery pack and power device

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery pack and a power device.

Background

Under the large environment of the state of the great development of electric vehicles, as the heart of the new energy vehicle, the importance of the power battery is self-evident, the continuous voyage requirements of people on the power battery are increasingly increased, the sales volume of the electric vehicles is increasingly increased, and the improvement of the space utilization rate of the battery pack can effectively increase the continuous voyage of the battery. In the assembly process of the power battery, the traditional collection wiring harness is messy in wiring, occupies the space of a battery pack, is difficult to realize automatic mass production, and replaces a new product FPC (Flexible Printed Circuit, flexible circuit board) of the traditional wiring harness. The FPC of present battery package module design is fixed on the module generally, occupy the space that the module held the cavity, and when rechargeable battery in circulation system, just for normal circumstances, the film thickness increases along with circulation system's circulation frequency's increase within fifty weeks, normal growth rate is 0.3 ~ 0.6mm, and whole car FPC quantity is nearly more than 100, FPC also can expand simultaneously, can further extrude the inside inflation of module after the inflation, it is unreasonable to indicate that the space setting on the module among the prior art, and not only influence FPC carries out data acquisition after the inflation, simultaneously FPC receives influence such as inflation extrusion easily to cause the fracture.

Chinese utility model CN115241612a discloses a battery pack, in order to reduce the space of the module series wiring harness and improve the module series-parallel connection efficiency, the FPC is connected to the inside of the battery module, and specifically, an FPC support frame is provided, the FPC support frame 6 is used for supporting the FPC collection board 5, and the support frame is arranged between the FPC collection board 5 and the busbar aluminum 9 to perform an insulating function, and prevent contact with the busbar aluminum 9, but the space arrangement is not reasonable, and the extrusion effect on the battery pack generated when the FPC expands cannot be avoided.

Therefore, a technology is needed to solve the problems that in the prior art, the spatial arrangement of the FPC in the battery pack is unreasonable and the extrusion of the battery pack after the expansion of the FPC is avoided.

Disclosure of Invention

In view of the above, the utility model provides a battery pack, which aims to solve the problems that the space arrangement of arranging FPC in the battery pack is unreasonable and the extrusion to the battery pack after expanding the FPC is avoided.

In one aspect, the present utility model provides a battery pack comprising:

the shell is internally provided with a supporting beam, the supporting beam is used for dividing the internal space of the shell into a first cavity and a second cavity, the first cavity is internally used for placing the cell module, and the second cavity is internally used for placing the electrical appliance assembly;

characterized by further comprising:

the fixing part is arranged in the second cavity and is connected with the side wall of the supporting beam;

the plug-in part is arranged on the fixed part and is used for being connected with the electrical appliance assembly;

one end of the FPC is connected with the plug-in connection part, and the other end of the FPC is connected with the cell module.

Further, the fixing portion includes:

and the bracket is fixed on the upper part of the side wall of the support beam positioned at one side of the second cavity, and the inserting part is fixed on the upper side surface of the bracket.

Further, the fixing part further includes:

the lower side of the reinforcing plate is connected with the upper side of the support, and the inserting part is fixed on the upper side of the reinforcing plate.

Further, the bracket includes:

a connecting part, one side surface of which is connected with the upper part of the side wall of the support beam positioned at one side of the second cavity;

and the lower side surface of the supporting part is connected with the upper end of the connecting part, and the lower side surface of the reinforcing plate is connected with the upper side surface of the supporting part.

Further, a through cavity is formed in the middle of the supporting portion along the longitudinal direction of the supporting beam.

Further, the support part includes:

the vertical plate is arranged along the horizontal direction, one side of the vertical plate is in contact with the side wall of the supporting beam, the upper end of the vertical plate is connected with one end of the first horizontal plate, the upper end of the inclined plate is connected with the other end of the first horizontal plate, the lower end of the inclined plate is connected with the lower end of the vertical plate, and the connecting end of the vertical plate and the inclined plate is connected with the upper end of the connecting part.

Further, the supporting part further includes:

the second horizontal plate is arranged below the first horizontal plate and is arranged in parallel relative to the first horizontal plate, one end of the second horizontal plate is connected with the lower end of the vertical plate, the other end of the second horizontal plate is connected with the lower end of the inclined plate, and the lower side surface of the second horizontal plate is connected with the upper end of the connecting part; wherein,,

the first horizontal plate, the second horizontal plate, the vertical plate and the inclined plate are sequentially connected, and the through cavity is formed between the first horizontal plate, the second horizontal plate, the vertical plate and the inclined plate.

Further, the connection part includes:

the connecting block is arranged below the supporting part along the vertical direction and is connected with the supporting beam, the upper end of the connecting block is connected with the lower side surface of the supporting part, and one side surface of the connecting block is contacted with the side wall of the supporting beam.

Furthermore, at least two connecting blocks are arranged below the supporting part side by side, and the connecting blocks are in threaded connection with the supporting beam.

Compared with the prior art, the utility model has the beneficial effects that: be provided with a supporting beam in the battery package, a supporting beam separates grafting portion and electric mandrel component, is provided with grafting portion on a supporting beam's lateral wall, and the one end and the FPC of grafting portion are connected, have optimized the space arrangement that sets up FPC in the battery package and have avoided the extruded problem that produces the battery package after the FPC inflation simultaneously.

On the other hand, the utility model also provides a power device which comprises the battery pack.

It can be appreciated that the power device adopts the battery pack provided by the utility model, and the power device has the same beneficial effects as the battery pack and is not described herein again.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic view of a battery pack according to an embodiment of the present utility model;

FIG. 2 is a side view of an upper side wall of a support beam according to an embodiment of the present utility model;

fig. 3 is a schematic view of an upper structure of a side wall of a support beam according to an embodiment of the present utility model.

100-a housing; 101-a first cavity; 102-a second cavity; 200-cell module; 201-a bus; 300-supporting beams; 400-fixing part; 410-a bracket; 411-connecting portion; 4111-connecting block; 4112-first connecting block; 4113-a second connection block; 4114-a first via; 4115-a second via; 412-a support; 4121-cavity; 4122-a first horizontal plate; 4123-riser; 4124-swash plate; 4125-second horizontal plate, 420-stiffening plate; 500-plug-in parts; 600-FPC; 601-bends.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The battery package that provides in this embodiment of this application is provided with a supporting beam in the battery package, and a supporting beam separates grafting portion and electric mandrel component, is provided with grafting portion on a supporting beam's lateral wall, and the one end and the FPC of grafting portion are connected, have optimized to set up FPC's spatial arrangement in the battery package and have avoided the extruded problem that produces the battery package after the FPC inflation simultaneously.

Referring to fig. 1, a battery pack provided in this embodiment includes: the battery cell module comprises a shell 100, a supporting beam 300, a battery cell module 200 and an electrical appliance assembly, wherein the supporting beam 300 is arranged in the shell 100, the supporting beam 300 divides the inner space of the shell 100 into a first cavity 101 and a second cavity 102, the battery cell module 200 is placed in the first cavity 101, and the electrical appliance assembly is placed in the second cavity 102;

referring to fig. 2, the battery pack provided in this embodiment includes: a fixing part 400 disposed in the second cavity 102 and connected to a sidewall of the support beam 300;

the plug-in part 500 is arranged on the fixing part 400, and the plug-in part 500 is used for being connected with the electrical appliance assembly;

one end of the FPC600 is connected to the plug-in portion 500, and the other end is connected to the bus bar 201 of the battery cell module 200.

Specifically, the support beam 300 is disposed in the battery pack housing 100 to divide the battery pack into the first cavity 101 and the second cavity 102, wherein the plug-in portion 500 is fixed on the support beam 300 of the second cavity 102 through the fixing portion 400, and the battery cell module 200 is disposed in the first cavity 101, it can be understood that the battery cell module 200 and the plug-in portion 500 are disposed in one cavity respectively, so that both have independent expansion spaces.

Specifically, the battery cell module 200 includes a bus bar 201, the bus bar 201 is connected to one end of the FPC600, and the other end of the FPC600 is connected to the socket 500, where the FPC600 is used for collecting and transmitting information. It is understood that the FPC600 does not affect the battery module 200 when it is thermally expanded.

As shown in connection with fig. 1-2, the fixing portion 400 includes:

and a bracket 410 fixed to an upper portion of a sidewall of the support beam 300 at one side of the second cavity 102, and the socket 500 is fixed to an upper side surface of the bracket 410.

Specifically, a plurality of brackets 410 are fixed to the support beam 300, each of the socket parts 500 is fixed to one of the brackets 410, and each of the rows of the cell modules 200 has bus bars 201 at both sides thereof, and each of the bus bars 201 communicates with the FPC600 and is connected to the socket part 500 through the FPC 600.

With continued reference to fig. 2, the fixing portion 400 of the present embodiment further includes:

the reinforcing plate 420 has a lower side surface connected to an upper side surface of the bracket 410, and the insertion portion 500 is fixed to the upper side surface of the reinforcing plate 420.

Specifically, the reinforcing plate 420 is disposed on the upper side of the bracket 410, and the upper surface of the reinforcing plate 420 is higher than the top end of the support beam 300 for forming a stepped structure. It will be appreciated that by the height difference arrangement, the socket 500 is fixed to the reinforcing plate 420 while allowing the FPC600 connected to the socket 500 to maintain a certain curvature, protecting the FPC600 and forming a space for accommodating expansion of the FPC 600.

Specifically, the support 410 is provided with the reinforcing plate 420 for increasing structural strength, and it can be appreciated that the flexible circuit board is light, thin, short and small, so that the reinforcing plate 420 is additionally arranged in the use process for avoiding the problems of folding, scaring, cracking and the like.

With continued reference to fig. 2, the stand 410 of the present embodiment includes:

a connection part 411 and a support part 412, wherein a side surface of the connection part 411 is connected to an upper portion of a side wall of the support beam 300 located at the side of the second cavity 102; and the lower side of the supporting part 412 is connected to the upper end of the connecting part 411, and the lower side of the reinforcing plate 420 is connected to the upper side of the supporting part 412.

Specifically, positioning of bracket 410 on support beam 300 is accomplished by providing connection 411, and bracket 410 is structurally stabilized by support 412.

With continued reference to fig. 1-2, a through cavity 4121 is formed in the middle of the support portion 412 along the longitudinal direction of the support beam 300.

Specifically, the through cavity 4121 is formed in the middle of the supporting portion 412 along the longitudinal direction, and it is understood that the through cavity 4121 may perform a weight reduction function on the supporting portion 412, and may not affect the structural strength of the supporting portion 412.

Referring to fig. 2, the supporting portion 412 of the present embodiment includes:

the vertical plate 4123 is arranged along the vertical direction, one side surface of the vertical plate 4123 is contacted with the side wall of the supporting beam 300, and the upper end of the vertical plate 4123 is connected with one end of the first horizontal plate 4122; the upper end of the swash plate 4124 is connected to the other end of the first horizontal plate 4122, the lower end of the swash plate 4124 is connected to the lower end of the vertical plate 4123, and the connection ends of the vertical plate 4123 and the swash plate 4124 are connected to the upper end of the connection portion 411.

Specifically, the vertical plate 4123 and the inclined plate 4124 are respectively disposed at both sides of the first horizontal plate 4122, the vertical plate 4123 is disposed in the vertical direction, the first horizontal plate 4122 is perpendicular to the vertical plate 4123, and the inclined plate 4124 becomes the third side so as to extend to one side of the vertical plate 4123, so that the supporting portion 412 has a stable supporting structure of an approximately triangle shape.

With continued reference to fig. 2, the supporting portion 412 of the present embodiment further includes:

a second horizontal plate 4125 disposed below the first horizontal plate 4122 and disposed in parallel with the first horizontal plate 4122, one end of the second horizontal plate 4125 being connected to the lower end of the vertical plate 4123, the other end being connected to the lower end of the inclined plate 4124, the lower side of the second horizontal plate 4125 being connected to the upper end of the connecting portion 411; wherein,,

the first horizontal plate 4122, the second horizontal plate 4125, the vertical plate 4123, and the inclined plate 4124 are connected in this order, and a through chamber 4121 is formed between the four.

Specifically, the first horizontal plate 4122, the inclined plate 4124, the second horizontal plate 4125 and the vertical plate 4123 are sequentially connected with each other, and a through cavity 4121 is formed in the middle of the first horizontal plate, the inclined plate 4124, the second horizontal plate 4125 and the vertical plate 4123, and it can be understood that a regular trapezoid structure is formed by the second horizontal plate 4125 when approaching to a stable triangular supporting structure, and a certain structural space is reserved for the lower part while stability is ensured.

As shown in connection with fig. 2 to 3, the connection portion 411 of the present embodiment includes:

the connection block 4111 is disposed under the support portion 412 in the vertical direction and connected to the support beam 300, an upper end of the connection block 4111 is connected to a lower side surface of the support portion 412, and one side surface of the connection block 4111 is in contact with a side wall of the support beam 300.

As shown in fig. 2-3, at least two connecting blocks 4111 are disposed below the supporting portion 412 in the present embodiment, and the connecting blocks are screwed with the supporting beam 300.

Specifically, a through hole is provided on the connecting block 4111 including the side wall for fixing the connecting portion 411 to the measurement side wall. It can be appreciated that the connecting block 4111 is located below the right trapezoid structure, the length of the connecting block 4111 extends to the intersection point where the sloping plate 4124 extends to the vertical plate 4123, and the connecting block performs the function of fixing with the side wall while reinforcing the structure; the support beam 300 is located on the side wall of the second cavity 102, and is also provided with positioning and mounting holes, and can be connected by screws later, but is not limited thereto, so long as the convenience of installation and stable structure can be ensured.

It can be seen that, in the above embodiment, the support beam 300 is disposed in the battery pack, the support beam 300 separates the plugging portion 500 from the battery cell module 200, the plugging portion 500 is disposed on the side wall of the support beam 300, one end of the plugging portion 500 is connected with the FPC600, so that the space arrangement of the FPC600 disposed in the battery pack is optimized, and meanwhile, the problem of extrusion of the battery pack caused by expansion of the FPC600 is avoided.

In the battery pack provided in this embodiment, the support 410 is provided with the stiffening plate 420, the splicing part 500 is placed on the stiffening plate 420, the FPC600 is communicated with the splicing part 500, the backing plate is higher than the supporting beam 300, so that the FPC600 is higher than the supporting beam 300, the FPC600 has a buffer step outside the interface, the FPC600 presents a certain radian, and the FPC600 is prevented from breaking when expanding.

In another preferred embodiment based on the above examples, the present embodiment provides a power device including the battery pack provided in the above examples. Specifically, install in the battery package and be provided with supporting beam 300 in the battery package, supporting beam 300 separates grafting portion 500 and electric core module 200, has optimized the space arrangement that sets up FPC in the battery package and has avoided the problem of extrusion to the battery package that produces after the FPC inflation.

Those of ordinary skill in the art will appreciate that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A battery pack, comprising:

the shell (100) is internally provided with a supporting beam (300), the supporting beam (300) is used for dividing the internal space of the shell (100) into a first cavity (101) and a second cavity (102), the first cavity (101) is internally used for placing the cell module (200), and the second cavity (102) is internally used for placing the electrical assembly;

characterized by further comprising:

a fixing part (400) which is arranged in the second cavity (102) and is connected with the side wall of the supporting beam (300);

the plug-in part (500) is arranged on the fixing part (400), and the plug-in part (500) is used for being connected with the electrical appliance assembly;

and an FPC (600) having one end connected to the plug-in unit (500) and the other end connected to the cell module (200).

2. The battery pack according to claim 1, wherein the fixing portion (400) includes:

and a bracket (410) fixed on the upper part of the side wall of the support beam (300) positioned on one side of the second cavity (102), wherein the inserting part (500) is fixed on the upper side surface of the bracket (410).

3. The battery pack according to claim 2, wherein the fixing portion (400) further includes:

and the lower side surface of the reinforcing plate (420) is connected with the upper side surface of the bracket (410), and the inserting part (500) is fixed on the upper side surface of the reinforcing plate (420).

4. A battery pack according to claim 3, wherein the stand (410) comprises:

a connecting part (411) one side surface of which is connected to the upper part of the side wall of the support beam (300) located on the side of the second chamber (102);

and a support part (412) the lower side surface of which is connected with the upper end of the connecting part (411), and the lower side surface of the reinforcing plate (420) is connected with the upper side surface of the support part (412).

5. The battery pack according to claim 4, wherein a through cavity (4121) is opened at a middle portion of the support portion (412) in a longitudinal direction of the support beam (300).

6. The battery pack according to claim 5, wherein the support portion (412) includes:

first horizontal plate (4122), riser (4123) and swash plate (4124), first horizontal plate (4122) sets up along the horizontal direction, riser (4123) set up along vertical direction, just riser (4123) a side with the lateral wall of supporting beam (300) contacts, the upper end of riser (4123) with one end of first horizontal plate (4122) is connected, the upper end of swash plate (4124) with the other end of first horizontal plate (4122) is connected, the lower extreme of swash plate (4124) with the lower extreme of riser (4123) is connected, riser (4123) and swash plate (4124) link with the upper end of connecting portion (411).

7. The battery pack according to claim 6, wherein the support portion (412) further includes:

a second horizontal plate (4125) disposed below the first horizontal plate (4122) and disposed in parallel with the first horizontal plate (4122), wherein one end of the second horizontal plate (4125) is connected to the lower end of the vertical plate (4123), the other end is connected to the lower end of the inclined plate (4124), and the lower side surface of the second horizontal plate (4125) is connected to the upper end of the connecting portion (411); wherein,,

the first horizontal plate (4122), the second horizontal plate (4125), the vertical plate (4123) and the inclined plate (4124) are sequentially connected, and the through cavity (4121) is formed between the four plates.

8. The battery pack according to claim 4, wherein the connection portion (411) includes:

the connecting block (4111) is arranged below the supporting portion (412) along the vertical direction and is connected with the supporting beam (300), the upper end of the connecting block (4111) is connected with the lower side face of the supporting portion (412), and one side face of the connecting block (4111) is in contact with the side wall of the supporting beam (300).

9. The battery pack according to claim 8, wherein at least two connection blocks (4111) are disposed side by side under the support portion (412), and the connection blocks (4111) are screwed with the support beam (300).

10. A power plant comprising a battery pack according to any one of claims 1-9.