Battery pack and vehicle with same

Abstract

The invention discloses a battery pack and a vehicle with the battery pack, the battery pack comprises a shell, the shell is suitable for being mounted on a frame of the vehicle, the frame at least comprises two longitudinal beams, a middle space is formed between the two longitudinal beams, the shell is internally provided with a middle cavity and two side cavities, and the two side cavities are communicated with the middle cavity; when the shell is installed on the frame, at least one part of the middle cavity is suitable for stretching into the middle space in the vertical direction, and the two side cavities are located on the two sides of the frame in the horizontal direction correspondingly. And the plurality of battery cells are respectively arranged in the middle cavity and the two side cavities. The battery pack provided by the embodiment of the invention has the advantages of high space utilization rate, large electric quantity, long endurance and the like.

Description

Technical Field

[0001] The present invention relates to the field of vehicle engineering technology, and in particular to a battery pack and a vehicle having the battery pack. Background Art

[0002] The electric truck frame adopts a frame structure with two parallel longitudinal beams and several cross beams.

[0003] In the related art, for vehicles such as electric trucks, there are two ways to install the battery pack on the frame: side-mounted and bottom-mounted. The side-mounted method means that the battery packs are installed on both sides of the frame, and the bottom-mounted method means that the battery packs are installed under the frame. The side-mounted method only uses the space on both sides of the frame, and the bottom-mounted method only uses the space under the frame. Both methods fail to make full use of the space around the frame, resulting in a waste of battery layout space. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a battery pack, which has the advantages of high space utilization, large power, long battery life, etc.

[0005] The present invention also provides a vehicle having the battery pack.

[0006] To achieve the above-mentioned purpose, a battery pack is provided according to an embodiment of the first aspect of the present invention, the battery pack comprising: a shell, the shell being suitable for being installed on a frame of a vehicle, the frame comprising at least two longitudinal beams, a middle space being formed between the two longitudinal beams, the shell having a middle cavity and two side cavities, when the shell is installed on the frame, at least a part of the middle cavity is suitable for extending into the middle space in the up and down directions and the two side cavities are respectively located on both sides of the frame in the horizontal direction; a plurality of battery cells, the plurality of battery cells being respectively arranged in the middle cavity and the two side cavities.

[0007] The battery pack according to the embodiment of the present invention has the advantages of high space utilization, large power, long battery life, etc.

[0008] In addition, the battery pack according to the above embodiment of the present invention may also have the following additional technical features:

[0009] According to one embodiment of the present invention, two avoidance grooves are provided on the shell, the two longitudinal beams are respectively suitable for cooperating with the two avoidance grooves, the middle cavity is located between the two avoidance grooves in the horizontal direction, and the two avoidance grooves are located between the two side cavities in the horizontal direction.

[0010] According to an embodiment of the present invention, the avoidance groove is formed on the upper surface of the shell, and the inner top surface of the middle cavity is higher than the lower surface of the longitudinal beam.

[0011] According to one embodiment of the present invention, the shell includes: a lower box body; a middle upper cover, which is installed on the lower box body and defines a middle cavity together with the lower box body; and two side upper covers, which are installed on the lower box body and define a side cavity together with the lower box body.

[0012] According to one embodiment of the present invention, the shell further includes two longitudinal partition beams, which divide the space in the lower box body into a middle groove and two side grooves, the middle groove and the middle upper cover together define a middle cavity, and the side grooves and the side upper covers together define a side cavity.

[0013] According to one embodiment of the present invention, each of the longitudinal partition beams is provided with a harness channel connecting the middle cavity and the side cavity.

[0014] According to an embodiment of the present invention, the upper surfaces of the middle upper cover and the two side upper covers have the same height.

[0015] According to one embodiment of the present invention, the shell also includes a plurality of transverse partitions, which are perpendicular to the longitudinal partition beams, and are respectively arranged in the middle groove and the side grooves. The transverse partitions in the middle groove divide the middle groove into a plurality of middle sub-grooves, and the transverse partitions in the side groove divide the side groove into a plurality of side sub-grooves.

[0016] According to one embodiment of the present invention, a transfer bracket is provided on the longitudinal partition beam, and the transfer bracket is suitable for being connected to the longitudinal beam.

[0017] According to an embodiment of a second aspect of the present invention, a vehicle is provided, the vehicle comprising the battery pack according to the embodiment of the first aspect of the present invention.

[0018] The vehicle according to the embodiment of the present invention has the advantages of high space utilization, large power, long driving range, etc. by utilizing the battery pack according to the embodiment of the first aspect of the present invention.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 Schematic diagram of the structure of a battery pack and a vehicle frame according to an embodiment of the present invention.

[0022] Figure 2is a schematic structural diagram of a battery pack according to an embodiment of the present invention.

[0023] Figure 3 is an exploded view of a battery pack according to an embodiment of the present invention.

[0024] Figure 4 Schematic diagram of the structure of the lower box of the battery pack according to an embodiment of the present invention.

[0025] Figure 5 is a schematic diagram of a partial structure of a battery pack according to an embodiment of the present invention.

[0026] Figure numerals: battery pack 1, shell 10, avoidance groove 11, lower box 12, middle sub-groove 121, side sub-groove 122, middle upper cover 13, side upper cover 14, longitudinal partition beam 15, wiring harness channel 151, transverse partition 16, battery cell 20, electric control box 30, adapter bracket 40, frame 2, longitudinal beam 3. DETAILED DESCRIPTION

[0027] This application is based on the inventor's discovery and understanding of the following facts and problems:

[0028] The electric truck frame adopts a frame structure with two parallel longitudinal beams and several cross beams.

[0029] In the related art, for vehicles such as electric trucks, there are two ways to install the battery pack on the frame: side-mounted and bottom-mounted. The side-mounted method means that the battery packs are installed on both sides of the frame, and the bottom-mounted method means that the battery packs are installed under the frame. The side-mounted method only uses the space on both sides of the frame, and the bottom-mounted method only uses the space under the frame. Both methods fail to make full use of the space around the frame, resulting in a waste of battery layout space.

[0030] Specifically, in some vehicles in the related art, the battery pack extends from the bottom of the frame to both sides of the frame, while utilizing the space at the bottom and both sides of the frame. However, the space between the two longitudinal beams of the frame is still not fully utilized, which still causes a waste of battery layout space.

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] A battery pack 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0035] like Figure 1-Figure 5 As shown, a battery pack 1 according to an embodiment of the present invention includes a housing 10 and a plurality of battery cells 20 .

[0036] The shell 10 is suitable for being installed on a vehicle frame 2, which includes at least two longitudinal beams 3, and a central space is formed between the two longitudinal beams 3. The shell 10 has a central cavity and two side cavities. When the shell 10 is installed on the frame 2, at least a portion of the central cavity is suitable for extending into the central space in the up-down direction, and the two side cavities are respectively located on both sides of the frame 2 in the horizontal direction (the up-down, left-right and front-back directions are shown by the arrows in the figure).

[0037] A plurality of battery cells 20 are respectively disposed in the middle cavity and the two side cavities.

[0038] Specifically, the figure shows an embodiment in which the longitudinal direction of the longitudinal beam 3 is oriented in the front-rear direction, and the two side cavities can be located on the left and right sides of the middle cavity. When the housing 10 is installed on the frame 2, the two side cavities are located on both sides of the frame 2 in the left-right direction.

[0039] According to the battery pack 1 of the embodiment of the present invention, a middle cavity and two side cavities are provided so that when the shell 10 is installed on the frame 2, at least a portion of the middle cavity is suitable for extending into the middle space in the up and down directions and the two side cavities are respectively located on both sides of the frame 2 in the horizontal direction. Compared with the vehicle in the related art, not only the space on both sides of the frame can be utilized, but also the space between the two longitudinal beams 3 can be utilized, so that the arrangement of the battery cells 20 of the battery pack 1 can make full use of the space of the frame 2, thereby improving the space utilization rate of the battery pack 1, increasing the total amount of the battery cells 20 arranged in the battery pack 1, increasing the total power of the battery pack 1, and increasing the cruising range of the vehicle, thereby meeting the demand for "large power and long cruising range".

[0040] Therefore, the battery pack 1 according to the embodiment of the present invention has the advantages of high space utilization, large power, long battery life, etc.

[0041] The following describes a battery pack 1 according to a specific embodiment of the present invention with reference to the accompanying drawings.

[0042] In some specific embodiments of the present invention, Figure 1-Figure 5 As shown, a battery pack 1 according to an embodiment of the present invention includes a housing 10 and a plurality of battery cells 20 .

[0043] Specifically, Figure 1 and Figure 2 As shown, two avoidance grooves 11 are provided on the housing 10, and the two longitudinal beams 3 are respectively adapted to cooperate with the two avoidance grooves 11, and the middle cavity is located between the two avoidance grooves 11 in the horizontal direction, and the two avoidance grooves 11 are located between the two side cavities in the horizontal direction. Specifically, the length direction of the avoidance groove 11 is oriented along the front-back direction. In this way, the avoidance groove 11 can be used to avoid the longitudinal beams 3, which is convenient for installing the housing 10 on the frame 2, and the middle cavity is convenient for extending into the middle space between the longitudinal beams 3, further improving the utilization rate of the space.

[0044] Advantageously, if Figure 1 and Figure 2 As shown, the avoidance groove 11 is formed on the upper surface of the housing 10, and the inner top surface of the middle cavity is higher than the lower surface of the longitudinal beam 3. This makes it easy to install the battery pack 1 from the bottom of the frame 2, and makes it easy for the middle cavity to extend from the bottom into the middle space between the longitudinal beams 3, further improving the utilization rate of the space at the frame 2.

[0045] Figure 1-Figure 5 1 shows a battery pack 1 according to some examples of the present invention. Figure 3 and Figure 4As shown, the housing 10 includes a lower case 12, a middle upper cover 13 and two side upper covers 14. The middle upper cover 13 is mounted on the lower case 12 and defines a middle cavity together with the lower case 12. The side upper covers 14 are mounted on the lower case 12 and define a side cavity together with the lower case 12. This facilitates the formation of the middle cavity and the side cavity, and facilitates the placement of the battery cell 20 into the middle cavity and the side cavity.

[0046] Specifically, Figure 3 and Figure 4 As shown, the housing 10 further includes two longitudinal partition beams 15, which divide the space in the lower box 12 into a middle groove and two side grooves. The middle groove and the middle upper cover 13 together define a middle cavity, and the side groove and the side upper cover 14 together define a side cavity. In this way, the longitudinal partition beams 15 can not only be used to separate the middle cavity and the side cavity, but also can be used to improve the structural strength of the battery pack 1.

[0047] Specifically, if Figure 2 and Figure 3 As shown, the middle upper cover 13 and the side upper cover 14 are arranged at intervals, and the avoidance groove 11 is defined by the longitudinal partition beam 15, the middle upper cover 13 and the side upper cover 14. The longitudinal partition beam 15 is suitable for connecting with the longitudinal beam 3. This can facilitate the formation of the avoidance groove 11 and the installation of the battery pack 1.

[0048] Advantageously, if Figure 4 and Figure 5 As shown, each longitudinal beam 15 is provided with a harness channel 151 connecting the middle cavity and the side cavity. This makes it easy to electrically connect the battery cells 20 in different cavities.

[0049] More advantageously, if Figure 1-Figure 3 As shown, the upper surfaces of the middle upper cover 13 and the two side upper covers 14 have the same height. This allows the middle cavity and the side cavity to have the same height, making it easier to set the battery cells 20 of the same size.

[0050] More specifically, Figure 3 and Figure 4 As shown, the housing 10 further includes a plurality of transverse partitions 16, which are perpendicular to the longitudinal partition beams 15. The transverse partitions 16 are respectively arranged in the middle groove to divide the middle groove into a plurality of middle sub-grooves 121, and the transverse partitions 16 in the side grooves divide the side grooves into a plurality of side sub-grooves 122. Specifically, the transverse partitions 16 are oriented in the left-right direction. This makes it easier to arrange the plurality of battery cells 20.

[0051] Alternatively, if Figure 1 As shown, the longitudinal beam 15 is provided with an adapter bracket 40, and the adapter bracket 40 is suitable for connecting with the longitudinal beam 3. This can facilitate the connection between the battery pack 1 and the frame 2.

[0052] Specifically, if Figure 3 As shown, the battery pack 1 further includes an electric control box 30, which is disposed in the housing 10 and is electrically connected to the plurality of battery cells 20. This makes it easier to control the charge and discharge of the battery pack 1.

[0053] The width of the middle cavity in the left-right direction is greater than the width of the side cavity in the left-right direction. Here, it is preferred that the width of the middle cavity in the left-right direction is twice the width of the side cavity in the left-right direction. In this way, more battery cells 20 can be arranged in the middle cavity, making full use of the space between the longitudinal beams 3. For example, multiple battery cells 20 can be arranged in two rows in the middle cavity and in one row in the side cavity, and each row includes multiple battery cells 20 arranged in the front-to-back direction.

[0054] The vehicle according to the embodiment of the present invention is described below. The vehicle according to the embodiment of the present invention includes the battery pack 1 according to the above-mentioned embodiment of the present invention.

[0055] The vehicle according to the embodiment of the present invention has the advantages of high space utilization, large power, long driving range, etc. by utilizing the battery pack 1 according to the above embodiment of the present invention.

[0056] Other components and operations of the vehicle according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0058] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that: include: A shell, wherein the shell is suitable for being installed on a vehicle frame, the frame comprising at least two longitudinal beams, a middle space being formed between the two longitudinal beams, the shell having a middle cavity and two side cavities, and when the shell is installed on the frame, at least a portion of the middle cavity is suitable for extending into the middle space in a vertical direction, and the two side cavities are respectively located on two sides of the frame in a horizontal direction; A plurality of battery cells are respectively arranged in the middle cavity and the two side cavities.

2. The battery pack according to claim 1, characterized in that: The shell is provided with two avoidance grooves, the two longitudinal beams are respectively suitable for cooperating with the two avoidance grooves, the middle cavity is located between the two avoidance grooves in the horizontal direction, and the two avoidance grooves are located between the two side cavities in the horizontal direction.

3. The battery pack according to claim 2, characterized in that: The avoidance groove is formed on the upper surface of the shell, and the inner top surface of the middle cavity is higher than the lower surface of the longitudinal beam.

4. The battery pack according to claim 1, characterized in that: The housing comprises: lower box; A middle upper cover, the middle upper cover is mounted on the lower box body and defines a middle cavity together with the lower box body; Two side upper covers are mounted on the lower box body and define a side cavity together with the lower box body.

5. The battery pack according to claim 4, characterized in that: The shell also includes two longitudinal partition beams, which divide the space in the lower box into a central groove and two side grooves. The central groove and the central upper cover together define a central cavity, and the side grooves and the side upper covers together define a side cavity.

6. The battery pack according to claim 5, characterized in that: Each of the longitudinal partition beams is provided with a harness channel connecting the middle cavity and the side cavity.

7. The battery pack according to claim 4, characterized in that: The upper surfaces of the middle upper cover and the two side upper covers have the same height.

8. The battery pack according to claim 5, characterized in that: The shell also includes a plurality of transverse partitions, which are perpendicular to the longitudinal partition beams and are respectively arranged in the middle groove and the side grooves. The transverse partitions in the middle groove divide the middle groove into a plurality of middle sub-grooves, and the transverse partitions in the side groove divide the side groove into a plurality of side sub-grooves.

9. The battery pack according to claim 5, characterized in that: An adapter bracket is provided on the longitudinal beam, and the adapter bracket is suitable for being connected to the longitudinal beam.

10. A vehicle, characterized in that: Comprising a battery pack according to any one of claims 1-9.

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