CN213483895U - Battery pack shell, battery pack and electric automobile - Google Patents

Abstract

The utility model discloses a battery pack shell, including the drain pan that is constructed with the holding chamber, the holding intracavity is equipped with the division board, so will a plurality of module holding districts that are used for holding the battery module and the battery management holding district that is used for holding battery management module are separated into in the holding chamber, and the division board is equipped with the pencil and holds the chamber, and the pencil holds the chamber and can hold and press from both sides tight pencil. The utility model discloses with the regional integration that the pencil is fixed on the division board and the pencil holds the chamber and requires that it can press from both sides tightly and fixed pencil, this structural design has reduced extra fastener, has reduced the holistic weight of battery package to save the cost, still improve pencil assembly efficiency when having increased wiring space.

Description

Battery pack shell, battery pack and electric automobile

Technical Field

The utility model relates to a battery technology field, in particular to battery package casing, battery package and electric automobile.

Background

With the increasing environmental pollution and energy shortage, electric vehicles are used more and more widely, and the power battery pack, as a key component of the electric vehicle, plays an important role in the use of the electric vehicle. The fixed adoption of general pencil in the power battery package of current uses extra material to fix the pencil on the tray like fasteners such as buckle or ribbon, leads to the whole weight of battery package great, and the structure is complicated in the battery package, is not conform to lightweight design theory.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the battery pack shell, the battery pack and the electric automobile are provided to solve the problems that the weight of the battery pack is too large and the internal structure is complex due to the fact that wiring harnesses in the conventional battery pack are generally fixed through additional components.

For solving the technical problem, the first aspect, the utility model provides a battery pack shell, battery pack shell is including the drain pan that is constructed with the holding chamber, the holding intracavity is equipped with the division board, so as will the holding chamber is separated into a plurality of module holding districts that are used for holding the battery module and is used for holding the battery management holding district of battery management module, the division board is equipped with the pencil and holds the chamber, the pencil holds the chamber and can hold and press from both sides tight pencil.

In some embodiments, the partition plate has a first opening through which the harness accommodating chamber communicates with the outside, and the harness enters the harness accommodating chamber through the first opening; the opening width of the first opening is smaller than the diameter length of the wire harness.

In some embodiments, the harness housing chamber penetrates the entire partition plate in the extending direction of the partition plate.

In some embodiments, the separator plate includes a first separator plate extending in a battery pack case length direction and a second separator plate extending in the battery pack case width direction;

the second partition plates are provided with a plurality of second partition plates, one ends of the second partition plates are connected with the first partition plates, the other ends of the second partition plates are connected with the battery shell, and the containing cavity is divided into a plurality of module containing areas used for containing battery modules and a battery management containing area used for containing a battery management module.

In some embodiments, the first partition plate is provided with a second opening at a position where the second partition plate is connected to the first partition plate, and the wire harness in the wire harness receiving chamber of the first partition plate enters the wire harness receiving chamber of the second partition plate through the second opening.

In some embodiments, the second separator plate has a third opening for connecting the harness within the second separator plate harness receiving cavity to a harness connector on the battery module through the third opening.

In some embodiments, at least one of the divider plate and the wiring harness is an elastic member.

In some embodiments, the wire harness accommodation chamber is provided at an end of the partition plate away from the bottom case.

In a second aspect, the present invention provides a battery pack, which includes the battery pack case, and a battery module and a battery management module located in the battery pack case; the battery pack shell further comprises a top cover which is connected with the bottom shell and covers the accommodating cavity;

the battery module is positioned in the module accommodating area, and the battery management module is positioned in the battery management accommodating area; the battery management module is connected with the battery module through a wire harness to collect battery information of the battery module, and the wire harness is located in a wire harness accommodating cavity in the partition plate.

In a third aspect, the present invention provides an electric vehicle, including the above battery pack.

According to the utility model discloses a beneficial effect does: the utility model discloses a set up the division board in the drain pan to set up the pencil in the division board and hold the chamber, this pencil holds the chamber and can press from both sides tightly and fixed pencil. The utility model discloses with the regional integration that the pencil is fixed on the division board and the pencil holds the chamber and requires that it can press from both sides tightly and fixed pencil, this structural design has reduced extra fastener, has reduced the holistic weight of battery package to save the cost, still improve pencil assembly efficiency when having increased wiring space.

Drawings

Fig. 1 is a schematic diagram of a battery pack case according to an embodiment of the present invention (with a top cover omitted).

Fig. 2 is a side view of a separator plate within a battery can body provided according to an embodiment of the invention.

Fig. 3 is a schematic diagram of a first separator plate within a battery can body according to an embodiment of the invention.

Fig. 4 is a schematic diagram of a second separator plate within a battery can housing provided in accordance with an embodiment of the present invention.

Fig. 5 is a schematic diagram of a battery pack provided according to an embodiment of the present invention (the top cover is omitted).

The reference numerals in the specification are as follows:

10. a battery pack;

100. a battery pack housing;

110. an accommodating cavity;

120. a partition plate; 121. a first partition plate; 1211. a second opening; 122. a second partition plate; 1221. a third opening; 123. a first opening; 124. a wire harness accommodating chamber;

130. a module accommodating area;

140. a battery management accommodating area;

200. a battery management module;

300. a battery module;

400. a wire harness.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

For convenience of explanation, the present application defines the length direction of the battery pack case as the X direction (X direction as shown in the drawings), the width direction of the battery pack case as the Y direction (Y direction as shown in the drawings), and the height direction of the battery pack case as the Z direction (Z direction as shown in the drawings).

In a first aspect, a battery pack case 100 is provided herein, and as shown in fig. 1, the battery pack case 100 includes a bottom case configured with a receiving cavity 110, and a partition plate 120 located in the receiving cavity 110. The partition plate 120 divides the receiving chamber 110 into a plurality of module receiving areas 130 for receiving the battery modules 300 and a battery management receiving area 140 for receiving the battery management module 200. The partition plate 120 is provided with a harness accommodating chamber 124, and the harness accommodating chamber 124 can accommodate the harness 400 and clamp the harness to prevent the harness from escaping from the harness accommodating chamber 124. Compared with the prior art, utilize extra material like fasteners such as buckle or ribbon to fix the pencil to the battery package in, the regional integration that fixes pencil 400 in the battery package casing 100 that this application provided forms pencil and holds chamber 124 and pencil and hold chamber 124 and require it to press from both sides tightly and fix pencil 400 on division board 120, this structural design has reduced extra fastener, has reduced the holistic weight of battery package, and save cost, has still improved pencil assembly efficiency when having increased wiring space.

Further, as shown in fig. 1 to 4, in order to satisfy the requirement that the harness accommodating chamber 124 can accommodate and clamp the harness 400, the battery pack case 100 disclosed in the present application defines the partition plate 120 with the first opening 123, the harness accommodating chamber 124 communicates with the outside through the first opening 123, the sampling harness 400 can enter the harness accommodating chamber 124 through the first opening 123, and an interference fit between the first opening 123 and the sampling harness 400 is required, that is, the opening width of the first opening 123 is smaller than the diameter length of the harness 400. The harness receiving chamber 124 extends through the entire partition 120 in the extending direction of the partition 120. Specifically, the partition plate 120 is disposed in the accommodating chamber 110 of the battery pack case 100, and is connected to the bottom of the bottom case along a first end in the height direction of the battery pack case 100, and the other end is provided with a harness accommodating chamber 124. The harness accommodating chamber 124 communicates with the outside through the first opening 123, and the harness 400 can enter the harness accommodating chamber 124 through the first opening 123. In order to ensure that the wire harness 400 does not break away from the wire harness accommodating cavity 124 after entering the wire harness accommodating cavity 124, an interference fit is provided between the first opening 123 and the wire harness 400, that is, the diameter of the wire harness 400 is larger than the distance between the two ends of the first opening 123 in the width direction of the battery pack case 100. After the first opening 123 is in interference fit with the wire harness 400, the wire harness 400 can enter the wire harness accommodating cavity 124 and cannot be separated from the wire harness accommodating cavity 124 by applying a certain force.

Further, as shown in fig. 2, in the embodiment of the present application, in order to better accommodate the wiring harness 400, the volume of the wiring harness accommodating chamber 124 may be generally not less than the volume of the wiring harness 400. The structural design and the first opening 123 can ensure that the wiring harness 400 can enter the wiring harness accommodating cavity 124 and can not be separated from the wiring harness accommodating cavity 124. Specifically, the specific shape of the wire harness accommodation chamber 124 is not limited. As shown in fig. 2 a, b, and c, the harness receiving chamber 124 may have a cylindrical shape, a triangular prism shape, a flower shape, and the like.

As shown in fig. 1, in order to further plan the inner space of the battery pack case 100, in the embodiment of the present application, the partition plate 120 includes a first partition plate 121 and a second partition plate 122. The first partition plate 121 extends along the length of the pack case 100 and is located at the middle of the receiving cavity 110 in the pack case 100. The second separation plate 122 extends in the width direction of the battery pack case 100, and a plurality of second separation plates 122 are provided. Each second separation plate 122 has one end connected to the first separation plate 121 and the other end connected to the battery pack case 100. The arrangement of the first and second partition plates 121 and 122 partitions the receiving cavity 110 of the pack case 100 into a plurality of module receiving areas 130 for receiving the battery modules 300 and a battery management receiving area 140 for receiving the battery management modules 200. Specifically, the first separation plate 121 has one end connected to the pack case 100 and the other end connected to two second separation plates 122 in the lengthwise direction of the pack case 100. The first partition plate 121 encloses, at its extreme end, the two partition plates and the pack case 100 to form a battery management housing area 140 for housing the battery management module 200. In the length direction of the pack case 100, two adjacent second partition plates 122, a part of the first partition plates 121, and the pack case 100 together enclose a module accommodating area 130 for accommodating the battery module 300, and a plurality of module accommodating areas 130 are included in the entire accommodating chamber 110. This application does not prescribe a limit to the quantity of first division board 121 and second division board 122, and the quantity of first division board 121 and second division board 122 can be selected according to actual need, and then the quantity of module accommodation area 130 does not prescribe a limit yet. In the embodiment of the present application, the arrangement of the first partition plate 121 and the second partition plate 122 can fully utilize the space (i.e., the accommodating cavity 110) in the battery pack case 100, improve the utilization rate of the space in the battery pack case, increase the flexibility of matching the space in the battery pack case, and reduce the manufacturing cost and the maintenance cost of the battery pack case.

Still further, as shown in fig. 1 and 3, in the embodiment of the present application, the first partition plate 121 is provided with a second opening 1211, and the second opening 1211 is provided at a position where the second partition plate 122 is connected to the first partition plate 121. The wire harness 400 in the wire harness receiving chamber 124 of the first partition plate 121 can enter the wire harness receiving chamber 124 of the second partition plate 122 through the second opening 1211. Specifically, the second opening 1211 is provided at the position of the first partition plate 121 where the second partition plate 122 is connected to the first partition plate 121 in the direction extending perpendicular to the first partition plate 121, and the wire harness accommodation chamber 124 is made to communicate with the outside through the second opening 1211. The second opening 1211 is disposed corresponding to the wire harness receiving chamber 124 of the second partition plate, so that the wire harness 400 in the wire harness receiving chamber 124 of the first partition plate 121 can enter the wire harness receiving chamber 124 of the second partition plate 122 through the second opening 1211. The form in which the second opening 1211 is disposed is not limited, and a conventional structure capable of achieving the technical effect of the second opening 1211 may be applied to the embodiment of the present application.

Still further, as shown in fig. 4, in the embodiment of the present application, the second partition plate 122 has a third opening 1221, and the harness 400 in the harness receiving chamber 124 of the second partition plate 122 is connected to the harness connector of the battery module 300 through the third opening 1221. The third opening 1221 may be provided at a position on the second partition plate 122 in relation to the harness connector on the battery module 300, that is, the third opening 1221 may be provided at a position on the battery module 300 where the harness connector is provided. The third opening 1221 is provided in a similar manner to the second opening 1211 and will not be further described.

Further, in the present embodiment, in order to ensure that the wire harness 400 can enter the partition plate 120, at least one of the partition plate 120 and the wire harness 400 is an elastic member. By elastic means is meant an element capable of some elastic deformation. Specifically, after the wire harness 400 enters the partition plate 120 through the first opening 123, when a certain force is applied to the wire harness 400 due to the interference fit of the first opening 123 with the wire harness 400, the partition plate 120 or the wire harness 400 may deform to allow the wire harness 400 to enter the wire harness accommodating chamber 124 through the first opening 123 because the partition plate 120 or the wire harness 400 is an elastic member.

In the present embodiment, the partition plate 120 is preferably manufactured by extrusion molding, and may be manufactured by molding such as casting or machining.

In a second aspect, as shown in fig. 5, the present application provides a battery pack including the above-described battery pack case 100, and a battery module 300 and a battery management module 200 located in the battery pack case 100. The battery pack case 100 further includes a top cover (the top cover is omitted in fig. 5) coupled to the bottom case and covering the receiving cavity 110. The battery module 300 is located in the module accommodating area 130, and the battery management module 200 is located in the battery management accommodating area 140; the battery management module 200 is connected to the battery module 300 through a harness 400 to collect battery information of the battery module 300, and the harness 400 is located in the harness receiving cavity 124 in the partition plate 120. The battery management module 200 may be a BMS or the like for processing the acquired battery information.

In a third aspect, the application further provides an electric vehicle, which includes the above battery pack.

In the description of the present invention, it is to 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", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and 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 such 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 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 (10)

1. The utility model provides a battery pack shell which characterized in that, battery pack shell is including the drain pan that is constructed with the holding chamber, the holding intracavity is equipped with the division board, in order with the holding chamber is separated into a plurality of module holding districts that are used for holding the battery module and is used for holding the battery management holding district of battery management module, the division board is equipped with the pencil and holds the chamber, the pencil holds the chamber and can hold and press from both sides tight pencil.

2. The battery pack case according to claim 1, wherein the partition plate has a first opening through which the harness accommodating chamber communicates with the outside, the harness entering the harness accommodating chamber through the first opening; the opening width of the first opening is smaller than the diameter length of the wire harness.

3. The battery pack case according to claim 1, wherein the harness accommodating chamber penetrates the entire partition plate in the extending direction of the partition plate.

4. The battery pack housing of claim 2, wherein the separator plate comprises a first separator plate extending along a battery pack housing length direction and a second separator plate extending along the battery pack housing width direction;

the second partition plates are provided with a plurality of second partition plates, one ends of the second partition plates are connected with the first partition plates, the other ends of the second partition plates are connected with the battery shell, and the containing cavity is divided into a plurality of module containing areas used for containing battery modules and a battery management containing area used for containing a battery management module.

5. The battery pack case according to claim 4, wherein the first partition plate is provided with a second opening through which the wire harness in the wire harness receiving chamber of the first partition plate enters the wire harness receiving chamber of the second partition plate at a position where the second partition plate is connected to the first partition plate.

6. The battery pack housing of claim 5, wherein the second separator plate has a third opening for connecting the harness within the second separator plate harness receiving cavity to a harness connector on a battery module through the third opening.

7. The battery pack housing according to any one of claims 1 to 6, wherein at least one of the partition plate and the wire harness is an elastic member.

8. The battery pack case according to any one of claims 1 to 6, wherein the harness receiving chamber is provided at an end of the partition plate remote from the bottom case.

9. A battery pack comprising a battery pack housing according to any one of claims 1 to 8, and a battery module and a battery management module located within the battery pack housing; the battery pack shell further comprises a top cover which is connected with the bottom shell and covers the accommodating cavity;

the battery module is positioned in the module accommodating area, and the battery management module is positioned in the battery management accommodating area; the battery management module is connected with the battery module through a wire harness to collect battery information of the battery module, and the wire harness is located in a wire harness accommodating cavity in the partition plate.

10. An electric vehicle characterized by comprising the battery pack according to claim 9.

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