CN219303825U

CN219303825U - Battery pack box, structure and car

Info

Publication number: CN219303825U
Application number: CN202222897370.2U
Authority: CN
Inventors: 李淑齐; 蔡佳兴
Original assignee: IAT Automobile Technology Co Ltd
Current assignee: IAT Automobile Technology Co Ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-07-04
Anticipated expiration: 2032-11-01

Abstract

The utility model provides a battery pack box body, a structure and an automobile, which belong to the field of automobile design and manufacture, and the battery pack box body comprises a first bottom shell, a first side beam and a second side beam; the first side beam and the second side beam are respectively positioned at two sides of the first bottom shell along the X direction, and the first bottom shell, the first side beam and the second side beam jointly form a first accommodating space which is used for accommodating the first battery module; the first bottom shell is internally provided with a first channel, one end of the first channel is communicated with the first side beam, and the other end of the first channel is communicated with the second side beam. The box body frame is fully utilized, the overall weight of the battery pack is reduced, materials are saved, the assembly process is simplified, and the water leakage risk can be effectively reduced.

Description

Battery pack box, structure and car

Technical Field

The utility model relates to the field of automobile design and manufacture, in particular to a battery pack box body, a battery pack structure and an automobile.

Background

In the charging and discharging process of the battery pack of the electric automobile, larger current can be generated, and meanwhile, the arrangement of batteries in the battery pack is compact, so that the temperature of a battery pack is overhigh or uneven temperature distribution occurs in the working or charging process, the performance and the service life of the batteries are seriously affected, and even the combustion or explosion of the batteries can be possibly caused. Therefore, the reasonable solution of battery heat dissipation is a necessary factor for safe operation of the electric vehicle.

Compared with the traditional air cooling mode, the liquid cooling heat dissipation speed is higher, the battery temperature distribution is more uniform, and the heat dissipation effect is more, so that the liquid cooling is also a main method for heat dissipation of the battery pack. However, the existing liquid cooling mode mostly adopts a cooling system formed by connecting a plurality of water cooling plates with water pipes, the assembly process is difficult, and the water leakage risk at the water pipe joint is high.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model provides a battery pack box body, a structure and an automobile, which are used for solving the problems that in the prior art, a cooling system formed by connecting a plurality of water cooling plates with water pipes is difficult in assembly process and the water leakage risk at the water pipe joint is high.

In order to solve the problems, the utility model adopts the following scheme:

the utility model provides a battery pack box body, which comprises a first bottom shell, a first side beam and a second side beam;

the first side beam and the second side beam are respectively positioned at two sides of the first bottom shell along the X direction, and the first bottom shell, the first side beam and the second side beam jointly form a first accommodating space which is used for accommodating the first battery module;

the first bottom shell is internally provided with a first channel, one end of the first channel is communicated with the first side beam, and the other end of the first channel is communicated with the second side beam.

The battery pack box body comprises a first bottom shell, and a first side beam and a second side beam which are connected to two sides of the first bottom shell, wherein the first bottom shell, the first side beam and the second side beam jointly form a first accommodating space for accommodating a battery pack, a first channel is arranged in the first bottom shell, two ends of the first channel are respectively communicated with the first side beam and the second side beam, the first bottom shell comprising the channel is used as a supporting structure of the battery pack, a box body frame (namely the first side beam and the second side beam) is fully utilized, the whole weight of the battery pack is reduced, materials are saved, the light weight performance is improved, compared with a mode of connecting a plurality of water cooling plates with water pipes, the assembly process can be simplified, the first channel is directly communicated with the first side beam and the second side beam, a water pipe joint is not required, and the water leakage risk can be effectively reduced.

In other preferred embodiments, the first side beam is formed with a first cavity, and the second side beam is formed with a second cavity; one end of the first channel is communicated with the first cavity, and the other end of the first channel is communicated with the second cavity.

In other preferred schemes, the first cavity is a liquid supply cavity and is used for supplying liquid to the first channel, and the second cavity is a liquid outlet cavity and is used for receiving the liquid flowing out of the first channel; the first cavity is positioned on the upper side of the second cavity in the Z direction, so that cooling liquid circulation is facilitated.

In other preferred embodiments, the first channels are plural in number, and the plural first channels are arranged at intervals along the Y direction; the first channels are communicated with the first cavity and the second cavity.

In other preferred embodiments, the first cavity, the second cavity, and the first bottom chassis have the same height, and the first side rail and the second side rail have the same height.

In other preferred embodiments, the second bottom case and the third side beam are further included: the third side beam is arranged at intervals with the second side beam along the X direction; the second bottom shell is positioned between the third side beam and the second side beam and connected with the second side beam and the third side beam; the second bottom shell, the second side beams and the third side beams jointly form a second accommodating space, and the second accommodating space is used for accommodating a second battery module; the second bottom shell is internally provided with a second channel, one end of the second channel is communicated with the second side beam, and the other end of the second channel is communicated with the third side beam.

In other preferred aspects, the third side beam is formed with a third cavity, the second side beam is further formed with a fourth cavity, and the fourth cavity and the second cavity are adjacently arranged in the X direction; one end of the second channel is communicated with the third cavity, and the other end of the second channel is communicated with the fourth cavity.

In other preferred schemes, the third cavity is a liquid supply cavity and is used for supplying liquid to the second channel, and the fourth cavity is a liquid outlet cavity and is used for receiving the liquid flowing out of the second channel; the third cavity is located on the upper side of the fourth cavity in the Z direction.

In other preferred embodiments, the second channels are plural in number, and the plural second channels are disposed at intervals along the X direction; the second channels are communicated with the third cavity and the fourth cavity.

In other preferred embodiments, the first side beam and the third side beam have the same structure, and the second cavity and the fourth cavity have the same structure.

In another aspect, the present application provides a battery pack structure, which includes a first battery pack module, a second battery module, and the battery pack case; the first battery module is accommodated in the first accommodating space, and the bottom of the first battery module is attached to the first bottom shell; the second battery module is accommodated in the second accommodating space, and the bottom of the second battery module is attached to the second bottom shell.

The present application also provides in another aspect an automobile comprising a body, and the battery pack structure disposed on the body.

Compared with the prior art, the utility model has the following beneficial effects:

the application provides a battery package box, including first drain pan and connect in first boundary beam and the second boundary beam of first drain pan both sides, first drain pan, first boundary beam and second boundary beam form first accommodation space jointly for accept the battery package, set up first passageway in the inside of first drain pan, the both ends of first passageway communicate respectively in first boundary beam and second boundary beam, the bearing structure that the battery was wrapped is regarded as simultaneously to the first drain pan that contains the passageway, make full use of box frame, reduce battery package overall weight, save the material, improve the lightweight performance, compare polylith water-cooling board and water piping connection's mode, can retrench assembly process, and first passageway is direct with first boundary beam and second boundary beam intercommunication, need not to set up water piping connection, can effectively reduce the risk of leaking.

Compare polylith water-cooling board and water piping connection's mode, this application can retrench the assembly process, compares the mode of integral type water-cooling board, and this application can reduce processing cost. The water channel is used as the supporting structure of the battery cell simultaneously, the box body frame is fully utilized, the overall weight of the battery pack is reduced, materials are saved, the light weight performance is improved, and the water channel is welded with the box body frame, so that the water leakage risk is effectively reduced.

Drawings

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

Fig. 1 is a front view of a particular battery pack case as described herein;

FIG. 2 is a schematic view of a specific battery pack case according to the present disclosure;

FIG. 3 is a front view of another embodiment of a battery pack case as described herein;

FIG. 4 is a cross-sectional view of another embodiment of a battery pack case as described herein;

fig. 5 is a schematic structural view of a specific battery pack structure described herein.

Reference numerals illustrate:

100. a first bottom case; 110. a water inlet; 120. a water outlet; 130. a first cavity; 200. a first side rail; 210. a first cavity; 300. a second side rail; 310. a second cavity; 320. a fourth cavity; 410. a first battery pack module; 420. a second battery pack module; 500. a second bottom case; 600. a third side rail; 610. and a third cavity.

Detailed Description

To further clarify the above and other features and advantages of the present utility model, a further description of the utility model will be rendered by reference to the appended drawings. It should be understood that the specific embodiments presented herein are for purposes of explanation to those skilled in the art and are intended to be illustrative only and not limiting.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being 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 utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a 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 at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Referring to fig. 1, an embodiment of a battery pack case provided by the present utility model is shown;

in this embodiment, a battery pack case is provided, including a first bottom case 100, a first side rail 200, and a second side rail 300; the first side beam 200 and the second side beam 300 are respectively located at two sides of the first bottom case 100 along the X direction, and the first bottom case 100, the first side beam 200 and the second side beam 300 together form a first accommodating space for accommodating the first battery module; the first bottom case 100 is provided with a first channel inside, one end of the first channel is communicated with the first side beam 200, the other end of the first channel is communicated with the second side beam 300, and the bottom of the first battery module is directly attached to the outer wall of the first channel.

The X direction, the Y direction and the Z direction described in this embodiment are defined mainly for convenience of description, and do not limit the structure of the battery pack case itself, after the battery pack case is mounted on the vehicle body, the front and rear directions of the vehicle body are the X direction, the left and right directions of the vehicle body are the Y direction, and the up and down directions are the Z direction.

The battery pack box provided by the utility model comprises a first bottom shell 100, and a first side beam 200 and a second side beam 300 which are connected to two sides of the first bottom shell 100, wherein the first bottom shell 100, the first side beam 200 and the second side beam 300 jointly form a first accommodating space for accommodating a battery pack, a first channel is arranged in the first bottom shell 100, two ends of the first channel are respectively communicated with the first side beam 200 and the second side beam 300, the first bottom shell 100 comprising the channel is simultaneously used as a supporting structure of the battery pack, a box frame (namely the first side beam 200 and the second side beam 300) is fully utilized, the overall weight of the battery pack is reduced, materials are saved, the light weight performance is improved, compared with a mode of connecting a plurality of water cooling plates with a water pipe, the assembly process can be simplified, the first channel is directly communicated with the first side beam 200 and the second side beam 300, and a water pipe joint is not required, so that the risk of water leakage can be effectively reduced.

Optionally, to improve the cooling effect, the first channel is disposed on the upper portion of the first bottom shell 100, and the top of the side wall of the first channel is the top of the first bottom shell 100, so that the first channel can be directly attached to the battery pack for cooling.

In other preferred aspects, the first side rail 200 is formed with the first cavity 210, and the second side rail 300 is formed with the second cavity 310; one end of the first channel is connected to the first cavity 210, and the other end of the first channel is connected to the second cavity 310, preferably, when the first cavity 210 is a liquid supply cavity, the height of the first cavity 210 is higher than that of the second cavity 310.

In one embodiment, one end of the first channel penetrates through the first bottom shell 100 and is communicated with the water inlet 110 of the first cavity 210, and the other end of the first channel penetrates through the first bottom shell 100 and is communicated with the water outlet 120 of the second cavity 310.

In other preferred embodiments, the first cavity 210 is a liquid supply cavity for supplying liquid to the first channel, and the second cavity 310 is a liquid outlet cavity for receiving liquid flowing out of the first channel; the first cavity 210 is located at an upper side of the second cavity 310 in the Z-direction, thereby facilitating the circulation of the cooling liquid.

In other preferred embodiments, the first channels are plural in number, and the plural first channels are arranged at intervals along the Y direction; the first plurality of channels are each in communication with the first cavity 210 and the second cavity 310.

In other preferred aspects, the first cavity 210, the second cavity 310, and the first bottom chassis 100 are the same in height, and the first and second side rails 200 and 300 are the same in height.

In other preferred aspects, the second bottom chassis 500 and the third side beam 600 are further included: the third side beam 600 is spaced apart from the second side beam 300 in the X direction; the second bottom chassis 500 is located between the third side rail 600 and the second side rail 300 and connected to the second side rail 300 and the third side rail 600; the second bottom chassis 500, the second side rail 300, and the third side rail 600 together form a second receiving space for receiving the second battery module; the second bottom case 500 is provided therein with a second passage, one end of which is connected to the second side beam 300, and the other end of which is connected to the third side beam 600.

In other preferred aspects, the third side beam 600 is formed with a third cavity 610, the second side beam 300 is further formed with a fourth cavity 320, and the fourth cavity 320 is disposed adjacent to the second cavity 310 in the X-direction; one end of the second channel is connected to the third cavity 610, and the other end of the second channel is connected to the fourth cavity 320.

In other preferred embodiments, the third cavity 610 is a liquid supply cavity for supplying liquid to the second channel, and the fourth cavity 320 is a liquid outlet cavity for receiving liquid flowing out of the second channel; the third cavity 610 is located at an upper side of the fourth cavity 320 in the Z-direction.

In other preferred embodiments, the second channels are plural in number, and the plural second channels are arranged at intervals in the X direction; the plurality of second passages are each in communication with the third cavity 610 and the fourth cavity 320.

As shown in fig. 2, in a specific embodiment, the top portions of the first bottom case 100 and the second bottom case 500 each include a plurality of raised first cavities 130, the first channels and the second channels are respectively and correspondingly disposed in the first cavities 130, and the top portions of the first cavities 130 are directly attached to the first battery pack module and the second battery pack module 420.

Further, the first side beam 200 and the third side beam 600 have the same structure, and the second cavity 310 and the fourth cavity 320 have the same structure, so that the structure is more optimized.

The first side beam 200 and the third side beam 600 are side beams, the second side beam 300 is a middle longitudinal beam, a T-shaped water channel is designed, and water flows from the upper water channel port of the side beam, and flows to the middle longitudinal beam through the lower water channel port.

As shown in fig. 3-5, in another aspect, the present application provides a battery pack structure comprising a first battery pack module 410, a second battery pack module, and a battery pack case; the first battery module is accommodated in the first accommodating space, and the bottom of the first battery module is attached to the first bottom shell 100; the second battery module is accommodated in the second accommodating space, and the bottom of the second battery module is attached to the second bottom shell 500.

The present application also provides in another aspect an automobile comprising a body, and a battery pack structure disposed on the body.

The battery package box that this application provided, including first drain pan 100 and connect in first boundary beam 200 and the second boundary beam 300 of first drain pan 100 both sides, first drain pan 100, first boundary beam 200 and second boundary beam 300 form first accommodation space jointly, be used for acceping the battery package, set up first passageway in the inside of first drain pan 100, the both ends of first passageway communicate respectively in first boundary beam 200 and second boundary beam 300, the bearing structure of battery package is regarded as simultaneously to the first drain pan 100 that contains the passageway, make full use of box frame, reduce battery package overall weight, save the material, improve the lightweight performance, compare polylith water-cooling board and water piping connection's mode, can retrench assembly process, and first passageway is direct to communicate with first boundary beam 200 and second boundary beam 300, need not to set up water piping connection, can effectively reduce the risk of leaking.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The battery pack box is characterized by comprising a first bottom shell (100), a first side beam (200) and a second side beam (300);

the first side beams (200) and the second side beams (300) are respectively positioned at two sides of the first bottom shell (100) along the X direction, and the first bottom shell (100), the first side beams (200) and the second side beams (300) jointly form a first accommodating space which is used for accommodating the first battery module (400);

the first bottom shell (100) is internally provided with a first channel (130), one end of the first channel (130) is communicated with the first side beam (200), and the other end of the first channel (130) is communicated with the second side beam (300).

2. The battery pack case according to claim 1, wherein,

the first side beam (200) is formed with a first cavity (210), and the second side beam (300) is formed with a second cavity (310);

one end of the first channel is communicated with the first cavity (210), and the other end of the first channel is communicated with the second cavity (310).

3. The battery pack case according to claim 2, wherein,

the first cavity (210) is a liquid supply cavity and is used for supplying liquid to the first channel, and the second cavity (310) is a liquid outlet cavity and is used for receiving the liquid flowing out of the first channel;

the first cavity (210) is located on the upper side of the second cavity (310) in the Z direction.

4. The battery pack case according to claim 2, wherein,

the first channels (130) are a plurality in number, and the first channels (130) are arranged at intervals along the X direction;

a plurality of the first channels (130) are each in communication with the first cavity (210) and the second cavity (310).

5. The battery pack case according to claim 2, further comprising a second bottom case (500) and a third side rail (600):

the third side beam (600) is arranged at intervals from the second side beam (300) along the Y direction;

the second bottom shell (500) is positioned between the third side beam (600) and the second side beam (300) and is connected to the second side beam (300) and the third side beam (600);

the second bottom shell (500), the second side beam (300) and the third side beam (600) jointly form a second accommodating space, and the second accommodating space is used for accommodating a second battery pack module (420);

the second bottom shell (500) is internally provided with a second channel (530), one end of the second channel (530) is communicated with the second side beam (300), and the other end of the second channel (530) is communicated with the third side beam (600).

6. The battery pack case according to claim 5, wherein,

the third side beam (600) is provided with a third cavity (610), the second side beam (300) is also provided with a fourth cavity (320), and the fourth cavity (320) and the second cavity (310) are adjacently arranged in the Y direction;

one end of the second channel (530) is communicated with the third cavity (610), and the other end of the second channel (530) is communicated with the fourth cavity (320).

7. The battery pack case according to claim 6, wherein,

the third cavity (610) is a liquid supply cavity and is used for supplying liquid to the second channel (530), and the fourth cavity (320) is a liquid outlet cavity and is used for receiving the liquid flowing out of the second channel (530);

the third cavity (610) is located on the upper side of the fourth cavity (320) in the Z-direction.

8. The battery pack case according to claim 6, wherein,

the second channels (530) are plural in number, and the plural second channels (530) are arranged at intervals along the Y direction;

a plurality of the second channels (530) are each in communication with the third cavity (610) and the fourth cavity (320).

9. A battery pack structure, characterized by comprising a first battery pack module (410), a second battery pack module (420), and the battery pack case of any one of claims 5-8;

the first battery pack module (410) is accommodated in the first accommodating space, and the bottom of the first battery pack module is attached to the first bottom shell (100);

the second battery pack module (420) is accommodated in the second accommodating space, and the bottom of the second battery pack module is attached to the second bottom shell (500).

10. An automobile comprising a body, and the battery pack structure of claim 9, wherein the battery pack structure is disposed on the body;

the first side beam (200), the second side beam (300) and the third side beam (600) are the same in height, and the first battery pack module (410) and the second battery pack module (420) are the same in height and higher than the first side beam (200).