Box body, battery pack and vehicle

Abstract

The utility model relates to a box body, a battery pack and a vehicle. The box body comprises a frame, a wiring groove, a middle cross beam and a communication hole. A containing cavity of the box body is defined by the frame. The wiring groove is formed in the frame, and an opening of the wiring groove faces the containing cavity so that the wiring groove can be communicated with the containing cavity. And the wiring groove is used for arranging a wiring harness. The middle cross beam is arranged in the containing cavity, and the two ends of the middle cross beam abut against the frame. And the communicating hole is formed in the middle cross beam and is used for allowing a wire harness in the wiring groove to pass through. The space utilization rate of the box body is higher, and the wiring space occupied by the wiring harness is reduced, so that more layout space is provided for other modules of the battery pack, and the energy density of the battery pack is improved. Moreover, the wiring harness does not need to bypass the middle cross beam during laying, so that the situation of potential safety hazards after the wiring harness is laid is avoided, and the convenience of wiring harness arrangement and the reliability of the box body are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicles, in particular to a box, a battery pack and a vehicle. BACKGROUND

[0002] With the rapid development of new energy electric vehicles, the internal structure of the battery pack has also been continuously optimized and designed. In the traditional battery pack box, the cross beam of the box is generally aligned with the edge of the box, so as to improve the strength of the box, but such cross beam also separates the structure of the battery pack box, so that the wire harness of the box needs to be arranged around the cross beam, thereby it is difficult to efficiently and reasonably arrange the wiring path of the wire harness and the copper bar, which is prone to cause problems such as line confusion, low space utilization, etc. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a box, a battery pack and a vehicle to solve some or all of the deficiencies in the related art.

[0004] A box comprises a frame, a wiring slot, a middle cross beam and a communication hole. The frame surrounds to form a containing cavity of the box. The wiring slot is arranged on the frame, and the opening of the wiring slot faces the containing cavity. The middle cross beam is arranged in the containing cavity, and the two ends thereof abut against the frame respectively. The communication hole is arranged on the middle cross beam for passing the wire harness in the wiring slot.

[0005] Optionally, the communication hole is arranged at the end of the middle cross beam and communicates with the wiring slot.

[0006] Optionally, the middle cross beam further comprises a reinforcing rib arranged at the end of the middle cross beam. One side of the reinforcing rib is connected with the middle cross beam, and the other side is connected with the inner wall of the wiring slot.

[0007] Optionally, the middle cross beam comprises a first side and a second side which are relatively distributed along the height direction.

[0008] The communication hole is arranged on the first side, and the reinforcing rib is arranged on the second side; or the reinforcing rib is arranged on the first side, and the communication hole is arranged on the second side.

[0009] Optionally, the middle cross beam comprises a first side and a second side which are relatively distributed along the height direction, and a middle segment clamped between the first side and the second side.

[0010] The communication hole is arranged on the middle segment, and a plurality of reinforcing ribs are arranged on the first side and the second side respectively.

[0011] Optionally, the communication hole is enclosed around;

[0012] And / or, one side of the communication hole has an opening;

[0013] And / or, any two adjacent sides of the communication hole have openings.

[0014] Optionally, the middle cross beam further comprises a connecting groove. One end of the connecting groove is in communication with the wiring groove, and the other end extends along the length direction of the middle cross beam and is in communication with the communication hole.

[0015] The application further provides a battery pack comprising the box and the wire harness as described above. The wire harness is arranged in the wiring groove and passes through the middle cross beam from the communication hole.

[0016] Optionally, the middle cross beam divides the accommodation cavity into a first chamber and a second chamber. The middle cross beam further comprises a connecting groove. One end of the connecting groove is in communication with the wiring groove, and the other end extends along the length direction of the middle cross beam and is in communication with the communication hole.

[0017] The wire harness extends from the wiring groove of the first chamber to the connecting groove, passes through the middle cross beam through the communication hole, and extends to the wiring groove of the second chamber through the connecting groove in communication with the second chamber.

[0018] The application further provides a vehicle comprising the battery pack as described above.

[0019] The technical scheme provided by the embodiments of the application can have the following beneficial effects:

[0020] As can be seen from the above embodiments, when the wire harness passes through the position of the middle cross beam, the box of the application can directly pass through the communication hole, thereby compared with the structure of the existing battery pack box, the wire harness of the battery pack of the application does not need to bypass the middle cross beam for laying, but directly passes through the middle cross beam from the communication hole. As can be seen, the space utilization rate of the battery pack box in the application is higher, the wiring space occupied by the wire harness is reduced, thereby more wiring space is provided for other modules of the battery pack, thereby facilitating the improvement of the energy density of the battery pack. Moreover, since the wire harness does not need to bypass the middle cross beam when laying, the wire harness laying does not appear after the wire harness laying, thereby avoiding the situation that the wire harness laying causes the wire to wear, short circuit and other safety hazards, thereby effectively improving the convenience of wire harness arrangement, the reliability of the box, ensuring the overall safety of the battery pack and the stability in the use process, and also improving the convenience of the battery pack in maintaining, repairing or replacing the wire harness, reducing the installation cost and maintenance cost.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0023] Figure 1 is a structural schematic diagram of a box body in an embodiment of the present application;

[0024] Figure 2 is an enlarged view of part A in Figure 1

[0025] Figure 3 is a top view of the box body structure in an embodiment of the present application.

[0026] Explanation of reference signs:

[0027] 1, box body; 11, frame; 111, accommodating cavity; 111a, first cavity; 111b, second cavity; 12, wiring slot; 13, middle cross beam; 131, reinforcing rib; 13a, first side; 13b, second side; 14, communication hole; 2, wire harness. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments (or, “modes”) of the present application will be described clearly and completely in the present application with reference to the drawings. When the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise indicated.

[0029] If the present application involves directional indications or positional relationships in the embodiments (for example, up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships, movement conditions, etc. between the components in a certain posture (as shown in the drawings); if the certain posture changes, the directional indications or positional relationships also change accordingly. In addition, the terms “first”, “second”, etc. in the embodiments of the present application are only used for convenience of description, and cannot be understood as indicating or implying relative importance.

[0030] The present application provides a vehicle comprising a battery pack.

[0031] During the operation of the vehicle, the battery pack provides power for the vehicle and powers each electronic module of the vehicle.

[0032] ​The battery pack of the present application comprises a box body 1 and a wire harness 2. The wire harness 2 is arranged in the wiring groove 12 of the box body 1 and passes through the middle beam 13 of the box body 1 from the communication hole 14 of the box body 1.

[0033] Reference Figure 1 It can be seen that the wire harness 2 of the battery pack is laid along the wiring groove 12 of the box body 1, and when passing through the position of the middle beam 13, it can directly pass through the communication hole 14. Compared with the existing structure of the battery pack box body 1, the wire harness 2 of the battery pack of the present application does not need to be laid around the middle beam 13, but directly passes through the middle beam 13 from the communication hole 14. Therefore, the space utilization of the battery pack box body 1 in the present application is higher, the wiring space occupied by the wire harness 2 is reduced, thereby providing more layout space for other modules of the battery pack, thereby facilitating the improvement of the energy density of the battery pack, the space utilization, the operation efficiency of the vehicle and the convenience during installation.

[0034] Of course, in actual use, according to the specific structure of the battery pack, the copper bar, domain control module and other structures of the battery pack can also be arranged through the communication hole 14. Therefore, the space utilization of the box body 1 can be further improved. Therefore, the present application does not limit this.

[0035] The box body 1 of the present application comprises a frame 11, a wiring groove 12, a middle beam 13 and a communication hole 14. The frame 11 surrounds to form a receiving cavity 111 of the box body 1. The wiring groove 12 is arranged on the frame 11, and the opening of the wiring groove 12 faces the receiving cavity 111, so that the wiring groove 12 is in communication with the receiving cavity 111. The wiring groove 12 is used to arrange the wire harness 2. The middle beam 13 is arranged in the receiving cavity 111, and the two ends thereof abut against the frame 11 respectively. The communication hole 14 is arranged on the middle beam 13, which is used to pass the wire harness 2 in the wiring groove 12.

[0036] Reference Figure 1 And Figure 2It can be known that, in the process of laying the wire harness 2, when the wire harness 2 passes the position of the middle cross beam 13, the wire harness 2 can directly pass through the communication hole 14, so compared with the existing structure of the battery pack box 1, the wire harness 2 of the battery pack of the application does not need to bypass the middle cross beam 13 for laying, but directly passes through the middle cross beam 13 at the communication hole 14. It can be seen that the space utilization rate of the battery pack box 1 in the application is higher, the wiring space occupied by the wire harness 2 is reduced, more layout space is provided for other modules of the battery pack, and the energy density of the battery pack is improved. Moreover, since the wire harness 2 does not need to bypass the middle cross beam 13 when laying, the wire harness 2 after laying is also avoided from crossing and extruding, so as to cause the safety hidden trouble of wire abrasion and short circuit, and the convenience of the wire harness 2 layout, the reliability of the box 1 are effectively improved, the overall safety and stability of the battery pack in use are ensured, and the convenience of the battery pack in maintenance, repair or replacement of the wire harness 2 is improved, and the installation cost and maintenance cost are reduced.

[0037] In an optional embodiment, the communication hole 14 is arranged at the end of the middle cross beam 13 and communicates with the wiring groove 12.

[0038] As shown in Figure 2 The box 1 of the application arranges the communication hole 14 at the end of the middle cross beam 13 and directly communicates with the wiring groove 12, so as to form a communication path between the end of the middle cross beam 13 and the frame 11, and the wire harness 2 or copper bar laid in the wiring groove 12 can directly pass through the communication hole 14, without being bent or laid around at the middle cross beam 13, so as to further optimize the space utilization rate of the box 1, reduce the wiring difficulty of the battery pack, and reduce the occurrence of wire crossing, extrusion, abrasion, short circuit and other situations in the battery pack, so as to ensure the reliability, stability and safety of the vehicle in use.

[0039] In an optional embodiment, the middle cross beam 13 further comprises a reinforcing rib 131 arranged at the end of the middle cross beam 13. One side of the reinforcing rib 131 is connected with the middle cross beam 13, and the other side is connected with the inner wall of the wiring groove 12.

[0040] The battery pack in the application effectively improves the structural strength of the middle cross beam 13 by arranging the reinforcing rib 131, ensures the stability and reliability of the middle cross beam 13 when connected with the frame 11, and to some extent avoids the situation that the deformation of the middle cross beam 13 causes extrusion to the wire harness 2 and copper bar, thereby causing safety hidden trouble. It can be seen that the arrangement of the reinforcing rib 131 also ensures the safety of the wire harness 2 after passing through the communication hole 14.

[0041] Reference Figure 3The battery pack of the present application is provided with a communication hole 14 and a reinforcing rib 131 at both ends of the middle cross beam 13, and the structure of the battery pack can further improve the convenience of wiring harness 2 arrangement and the overall stability of the box body 1 structure, thereby further improving the safety of the wiring harness 2 arrangement, ensuring the safety and reliability of the battery pack.

[0042] It should be noted that according to the specific wiring of the battery pack and user demand, etc., only one end of the middle cross beam 13 can be provided with a communication hole 14, which is not limited by the present application.

[0043] In an optional embodiment, the middle cross beam 13 includes a first side 13a and a second side 13b relatively distributed along the height direction. The communication hole 14 is arranged on the first side 13a, and the reinforcing rib 131 is arranged on the second side 13b.

[0044] In Figure 2 In the embodiment shown, the communication hole 14 is arranged on the first side 13a of the middle cross beam 13, and the reinforcing rib 131 is arranged on the second side 13b of the middle cross beam 13, thereby improving the structural strength of the second side 13b of the middle cross beam 13 to ensure that the middle cross beam 13 will not be structurally unstable, strongly vibrate, etc. after connection, thereby improving the overall stability and safety of the battery pack box body 1.

[0045] Of course, in other optional embodiments, the structure of the middle cross beam 13 can be arranged according to the specific structure of the battery pack box body 1, for example: in the embodiment in which the connection surface of the first side 13a of the middle cross beam 13 and the frame 11 is larger, the reinforcing rib 131 can be arranged on the first side 13a, and the communication hole 14 can be arranged on the second side 13b, thereby ensuring the structural stability of the battery pack. Or in the embodiment in which the connection structure of both ends of the middle cross beam 13 and the frame 11 is different, one end of the middle cross beam 13 can be arranged according to the communication hole 14 arranged on the first side 13a and the reinforcing rib 131 arranged on the second side 13b, and the other end of the middle cross beam 13 can be arranged according to the reinforcing rib 131 arranged on the first side 13a and the communication hole 14 arranged on the second side 13b, etc. Therefore, the present application is not limited in this regard.

[0046] In addition, in another optional embodiment, the middle cross beam 13 further includes an intermediate segment clamped between the first side 13a and the second side 13b. The communication hole 14 is arranged on the intermediate segment. A plurality of reinforcing ribs 131 are arranged on the first side 13a and the second side 13b, respectively.

[0047] In other words, reinforcing ribs 131 are provided on both the first side 13a and the second side 13b at the end of the middle crossbeam 13 to ensure the structural stability of the middle crossbeam 13 after connection. A connecting hole 14 is provided in the middle section between the first side 13a and the second side 13b for the wiring harness 2 to be installed. Therefore, the middle crossbeam 13 in this embodiment has higher stability and a more balanced stress distribution, thereby further improving the structural stability of the battery pack during use and ensuring the safety of the vehicle and its occupants.

[0048] It should be noted that, in optional embodiments, different shapes of connecting holes 14 can be provided according to the specific structure of the battery pack, the specific connection position and connection method of the middle crossbeam 13, etc. For example, the connecting hole 14 can be set as a hole closed on all four sides, that is, a round hole, a square hole or other shaped hole structure can be directly opened on the middle crossbeam 13. When arranging the wire harness 2, the wire harness 2 is laid through the hole. Such a structure can completely fix the wire harness 2 in the connecting hole 14; or, the connecting hole 14 can also be set as a groove-shaped structure with an opening on one side. When arranging the wire harness 2, the wire harness 2 is clamped in the groove-shaped connecting hole 14, thereby facilitating the laying, disassembly and maintenance of the wire harness 2. Of course, in such Figures 1 to 3 In the described embodiments, the connecting hole 14 can also be set as an open hole with openings on both sides of any adjacent holes, thereby minimizing interference between the central crossbeam 13 and the wiring harness 2, and further ensuring the convenience of wiring harness 2 arrangement. In the actual assembly process, in order to ensure the structural strength of the battery pack, multiple central crossbeams 13 are set in a single housing 1, and each central crossbeam 13 can also be provided with two or more connecting holes 14. The structure of the connecting hole 14 at the corresponding position can be selected according to the specific setting position of each central crossbeam 13 and the actual wiring method of the wiring harness 2. Therefore, this application does not impose any limitations on this.

[0049] In an optional embodiment, the middle crossbeam 13 further includes a connecting groove. One end of the connecting groove communicates with the wiring groove 12, and the other end extends along the length of the middle crossbeam 13 and communicates with the connecting hole 14.

[0050] In practical applications, there may be situations where the middle crossbeam 13 in the battery pack housing 1 structure is inconvenient to disassemble and assemble, making it difficult to add connecting holes 14 to the ends of the middle crossbeam 13. Therefore, connecting holes 14 can be provided on the main body of the middle crossbeam 13, such as round holes or square holes as described above, or slot-shaped holes with single-sided openings can be provided on the first side 13a and the second side 13b of the middle crossbeam 13. In order to further improve the convenience of wiring harness 2 arrangement, connecting grooves can also be provided in the structure of the middle crossbeam 13 to connect the wiring groove 12 and the connecting holes 14.

[0051] Specifically, taking the middle cross beam 13 as an example, the middle cross beam 13 divides the accommodating cavity 111 into a first cavity 111a and a second cavity 111b. On the side of the middle cross beam 13 facing the first cavity 111a and the second cavity 111b respectively, a connecting groove is arranged, for example, a connecting groove arranged along the length direction of the middle cross beam 13. The two ends of the connecting groove are connected with the wiring groove 12 and the communication hole 14 respectively. Therefore, when the wiring harness 2 is arranged, the wiring harness 2 extends from the wiring groove 12 in the first cavity 111a to the connecting groove, and continues to be arranged along the connecting groove, and then enters the communication hole 14 to pass through the middle cross beam 13, and then extends to the wiring groove 12 in the second cavity 111b through the connecting groove arranged towards the second cavity 111b, and the arrangement of the wiring harness 2 is completed.

[0052] Therefore, it can be seen that the setting position and setting mode of the communication hole 14 can be adjusted according to the specific structure of the battery pack and the design requirements, and the present application does not limit this.

[0053] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict, and the scope of protection of the present application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A box, characterized in that, include: A frame that encloses and forms the receiving cavity of the box body; A wiring channel is provided in the frame, and the opening of the wiring channel faces the receiving cavity; A central crossbeam is disposed in the receiving cavity, and its two ends respectively abut against the frame; and A connecting hole is provided in the middle crossbeam to allow wire harnesses in the wiring trough to pass through.

2. The housing according to claim 1, characterized in that, The connecting hole is located at the end of the middle crossbeam and communicates with the wiring groove.

3. The housing according to claim 2, characterized in that, The middle crossbeam also includes a reinforcing rib, which is disposed at the end of the middle crossbeam; one side of the reinforcing rib is connected to the middle crossbeam, and the other side is connected to the inner wall of the wiring trough.

4. The housing according to claim 3, characterized in that, The central crossbeam includes a first side and a second side that are relatively distributed along the height direction; Wherein, the connecting hole is disposed on the first side and the reinforcing rib is disposed on the second side; or, the reinforcing rib is disposed on the first side and the connecting hole is disposed on the second side.

5. The housing according to claim 3, characterized in that, The middle crossbeam includes a first side and a second side that are distributed opposite to each other along the height direction, and an intermediate section sandwiched between the first side and the second side; The connecting hole is located in the middle section; the multiple reinforcing ribs are respectively located on the first side and the second side.

6. The housing according to claim 1, characterized in that, The connecting hole is closed on all sides; And / or, one side of the connecting hole has an opening; And / or, any two adjacent sides of the connecting hole have openings.

7. The housing according to claim 1, characterized in that, The middle crossbeam also includes a connecting groove; one end of the connecting groove is connected to the wiring groove, and the other end extends along the length of the middle crossbeam and is connected to the connecting hole.

8. A battery pack, characterized in that, It includes a wiring harness and a housing as described in any one of claims 1-7; wherein the wiring harness is arranged in the wiring groove and passes through the central crossbeam from the connecting hole.

9. The battery pack according to claim 8, characterized in that, The central crossbeam divides the accommodating cavity into a first chamber and a second chamber; the central crossbeam also includes a connecting groove; one end of the connecting groove communicates with the wiring groove, and the other end extends along the length of the central crossbeam and communicates with the connecting hole. The wiring harness extends from the wiring groove in the first chamber to the connecting groove, passes through the connecting hole through the middle crossbeam, and extends to the wiring groove in the second chamber through the connecting groove that communicates with the second chamber.

10. A vehicle, characterized in that, Includes the battery pack as described in any one of claims 8-9.

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