Battery pack supporting beam, battery pack and vehicle

Abstract

The utility model discloses a battery pack supporting beam, a battery pack and a vehicle. The battery pack supporting beam comprises a supporting part, a first accommodating groove and a second accommodating groove, the first containing groove is formed in the first side of the supporting part in the first direction and used for containing a wire harness. The second containing groove is formed in the second side of the supporting part in the first direction and used for containing the wire harness. The supporting part isolates the first containing groove from the second containing groove. According to the utility model, the first accommodating groove and the second accommodating groove are isolated through the supporting structure of the battery pack supporting beam, so that high-voltage and low-voltage wire harnesses can be reliably isolated, adverse reaction is avoided, the safety and the stability of the battery pack are enhanced, the isolation structure is simplified, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model generally relates to the technical field of batteries, and more specifically to a battery pack support beam, a battery pack and a vehicle. Background Art

[0002] The existing battery packs usually include a tray and an upper cover. A battery module is arranged in the tray for storing electric energy and supplying electric energy outward. In order to form a stable support for the battery module, a support beam is also arranged in the tray to bear the expansion force of the battery. Moreover, the high-voltage wire harness and the low-voltage wire harness of the battery pack need to pass through the support beam. Therefore, a separate bracket is often required to be designed in the support beam to fix and isolate the high-voltage wire harness and the low-voltage wire harness, resulting in a complex structure of the support beam and an increase in cost.

[0003] Therefore, it is necessary to provide a battery pack support beam, a battery pack and a vehicle to at least partially solve the above problems. Summary of the Utility Model

[0004] A series of simplified concepts are introduced in the summary of the utility model, which will be further described in detail in the specific implementation part. The summary of the utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0005] To at least partially solve the above problems, a first aspect of the utility model provides a battery pack support beam, including:

[0006] A support part;

[0007] A first receiving groove, which is arranged on a first side in a first direction of the support part, and the first receiving groove is used for receiving a wire harness;

[0008] A second receiving groove, which is arranged on a second side in the first direction of the support part, and the second receiving groove is used for receiving a wire harness;

[0009] The support part isolates the first receiving groove and the second receiving groove.

[0010] Optionally, the support part includes:

[0011] A second support part, which is arranged in the middle in a second direction of the battery pack support beam;

[0012] The first receiving groove is arranged on a first side in the first direction of the second support part, and the second receiving groove is arranged on a second side in the first direction of the second support part.

[0013] Optionally, the second support portion includes one or more support plates that extend in a second direction to isolate the first receiving groove and the second receiving groove.

[0014] Optionally, the support portion further includes:

[0015] A first support portion disposed at a first end of the battery pack support beam in the second direction;

[0016] A first end of the second support portion is connected to the first support portion.

[0017] Optionally, the support portion further includes:

[0018] A third support portion disposed at a second end of the battery pack support beam in the second direction;

[0019] A second end of the second support portion is connected to the third support portion.

[0020] Optionally, the first support portion and / or the third support portion is a rectangular frame.

[0021] Optionally, the width of the first support portion and / or the width of the third support portion is greater than the width of the second support portion.

[0022] Optionally, the battery pack support beam further includes:

[0023] A first side wall disposed on a first side of the second support portion in a first direction, spaced apart from the second support portion by a predetermined distance to form the first receiving groove.

[0024] Optionally, the battery pack support beam further includes:

[0025] A first baffle disposed on the second support portion and extending obliquely toward the first side wall;

[0026] A second baffle disposed on the first side wall and extending obliquely toward the second support portion;

[0027] A gap between the first baffle and the second baffle forms an entrance and exit of the first receiving groove.

[0028] Optionally, the battery pack support beam further includes:

[0029] A second side wall disposed on a second side of the second support portion in a first direction, spaced apart from the second support portion by a predetermined distance to form the second receiving groove.

[0030] Optionally, the battery pack support beam further includes:

[0031] The third baffle, which is arranged on the second supporting part and extends obliquely towards the first side wall;

[0032] The fourth baffle, which is arranged on the second side wall and extends obliquely towards the second supporting part;

[0033] The gap between the third baffle and the fourth baffle forms the entrance and exit of the second receiving groove.

[0034] Optionally, the height of the first side wall is not equal to the height of the second side wall.

[0035] Optionally, the width of the entrance and exit of the first receiving groove is not equal to the width of the entrance and exit of the second receiving groove.

[0036] Optionally, the battery pack support beam further includes:

[0037] The first reinforcing plate, which is arranged at the connection of the first supporting part and the second supporting part and is respectively connected to the first supporting part and the second supporting part;

[0038] The second reinforcing plate, which is arranged at the connection of the second supporting part and the third supporting part and is respectively connected to the second supporting part and the third supporting part.

[0039] The second aspect of the present utility model provides a battery pack, including the battery pack support beam according to any one of the above technical solutions.

[0040] The third aspect of the present utility model provides a vehicle, including the battery pack according to any one of the above technical solutions.

[0041] According to a battery pack support beam, a battery pack and a vehicle of the present utility model, the battery pack support beam isolates the first receiving groove and the second receiving groove through its own support structure, without the need to additionally design components, and can reliably isolate the high-voltage and low-voltage wire harnesses, avoid adverse reactions, enhance the safety and stability of the battery pack, thereby simplifying the isolation structure and reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The following drawings of the embodiments of the present utility model are hereby incorporated as part of the present utility model for understanding the present utility model. The embodiments and descriptions thereof shown in the drawings are used to explain the principles of the present utility model. In the drawings,

[0043] Figure 1 is an exploded view of a battery pack according to a preferred embodiment of the present utility model;

[0044] Figure 2Stereogram of a battery pack tray according to a preferred embodiment of the present utility model;

[0045] Figure 3 Stereogram of a battery pack support beam according to a preferred embodiment of the present utility model;

[0046] Figure 4 Stereogram of a battery pack support beam according to a preferred embodiment of the present utility model;

[0047] Figure 5 Partial enlarged view of a battery pack support beam according to a preferred embodiment of the present utility model;

[0048] Figure 6 Left view of a battery pack support beam according to a preferred embodiment of the present utility model;

[0049] Figure 7 Front view of a battery pack support beam according to a preferred embodiment of the present utility model.

[0050] Explanation of reference numerals:

[0051] 1: Top cover 2: Power distribution integration module

[0052] 3: Cell module 4: Battery pack tray

[0053] 5: Low-voltage wiring harness 6: High-voltage wiring harness

[0054] 400: Frame 401: First side beam

[0055] 402: First end beam 403: Second side beam

[0056] 404: Second end beam 405: First longitudinal beam

[0057] 406: Second longitudinal beam 407: Intermediate cross beam

[0058] 408: Battery pack support beam 481: First support portion

[0059] 482: Second support portion 483: Third support portion

[0060] 484: First side wall 485: First receiving groove

[0061] 486: First baffle 487: Second baffle

[0062] 488: First diagonal reinforcement plate 489: Third diagonal reinforcement plate

[0063] 490: Second side wall 491: Second receiving groove

[0064] 492: Third baffle 493: Fourth baffle

[0065] 494: Second diagonal reinforcement plate 495: Fourth diagonal reinforcement plate

[0066] 409: Battery cell installation area 410: Power distribution installation area

[0067] 411: Liquid inlet 412: Liquid outlet

[0068] 413: Cold plate water inlet 414: Bottom plate

[0069] 471: Connection channel Detailed implementation manners

[0070] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some technical features known to the public are not described.

[0071] In order to thoroughly understand the present utility model, detailed descriptions will be presented in the following. It should be understood that these embodiments are provided to make the disclosure of the present utility model thorough and complete, and to fully convey the concept of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the present utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present utility model are described in detail below. However, in addition to these detailed descriptions, the present utility model can also have other embodiments.

[0072] The ordinal numbers such as "first" and "second" cited in the present utility model are only identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component".

[0073] It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and similar expressions used in the present utility model are for illustrative purposes only and are not restrictive.

[0074] The present utility model discloses a battery pack support beam, a battery pack and a vehicle.

[0075] Now, exemplary embodiments according to the present utility model will be described in more detail with reference to the accompanying drawings.

[0076] To facilitate the understanding of the battery pack support beam of the present utility model, the battery pack tray 4 will be described in detail below. As Figure 1, Figure 2 As shown, in a preferred embodiment, a battery pack tray 4 includes a frame 400 and partition beams;

[0077] The partition beams are arranged inside the frame 400 and connected to the frame 400. The area enclosed by the inner sides of the partition beams forms a power distribution installation area 410, which is used to accommodate the power distribution integration module 2.

[0078] The frame 400 is located at the edge of the battery pack tray 4 and can be designed as a rectangle or other suitable shapes. The power distribution installation area 410 is surrounded by the partition beams, which can achieve smoke isolation and thermal isolation from the battery cell module 3, improving the safety of the power distribution integration module 2 when the battery cell module 3 has a thermal runaway.

[0079] In the battery pack tray of this embodiment, an installation space is provided for the power distribution integration module. The power distribution integration module can be placed inside the battery pack and can integrate, including but not limited to, a battery control module, an electronic control module, a compressor control module, and a power supply module, improving the integration degree. The high integration degree can achieve multi-module integrated control, facilitating the installation and use of the power distribution integration module, and realizing cost reduction and weight reduction of the vehicle.

[0080] In one embodiment, as Figure 1 , Figure 2 shown, the area enclosed by the outer sides of the partition beams and the frame 400 forms a battery cell installation area 409, which is used to accommodate the battery cell module 3. The battery cell module 3 is the energy storage component of the battery pack and can use lithium-ion battery cells, sodium-ion battery cells, etc. Temperature control needs to be considered to prevent damage due to excessive temperature during thermal runaway.

[0081] In one embodiment, as Figure 1 , Figure 2 shown, the partition beam includes a U-shaped part, and the area enclosed by the inner side of the U-shaped part forms the power distribution installation area 410. The U-shaped part is a partial structure of the partition beam, with a three-sided isolation structure forming a semi-enclosed area, which can form the power distribution installation area 410 to accommodate the power distribution integration module 2.

[0082] In one embodiment, as Figure 1 , Figure 2 shown, the partition beam includes:

[0083] An intermediate cross beam 407, which is arranged inside the frame 400, and the first end and the second end of the intermediate cross beam 407 are respectively connected to the frame 400;

[0084] A first longitudinal beam 405, which is arranged inside the frame 400, the first end of the first longitudinal beam 405 is connected to the intermediate cross beam 407, and the second end of the first longitudinal beam 405 is connected to the frame 400;

[0085] The second longitudinal beam 406 is disposed inside the frame 400. The first end of the second longitudinal beam 406 is connected to the intermediate cross beam 407, and the second end of the second longitudinal beam 406 is connected to the frame 400.

[0086] The first longitudinal beam 405 is disposed opposite to the second longitudinal beam 406 with a preset distance therebetween. The intermediate cross beam 407 is disposed at the same end of the first longitudinal beam 405 and the second longitudinal beam 406. The area clamped by the intermediate cross beam 407, the first longitudinal beam 405, and the second longitudinal beam 406 forms a power distribution installation area 410.

[0087] By providing the intermediate cross beam 407, the first longitudinal beam 405, and the second longitudinal beam 406, multiple areas can be separated inside the battery pack tray 4, and the internal strength of the battery pack tray 4 can be enhanced, improving the impact resistance of the battery pack tray 4.

[0088] In one embodiment, as Figure 1 , Figure 2 shown, the first longitudinal beam 405 is disposed parallel to the second longitudinal beam 406. The first longitudinal beam 405 and the second longitudinal beam 406 are respectively disposed perpendicular to the intermediate cross beam 407, and the power distribution installation area 410 surrounded by the three is a rectangular accommodation groove.

[0089] In one embodiment, as Figure 1 , Figure 2 shown, the battery pack tray 4 further includes:

[0090] The battery pack support beam 408 is disposed inside the frame 400. The first end of the battery pack support beam 408 is connected to the frame 400, and the second end of the battery pack support beam 408 is connected to the intermediate cross beam 407. The battery pack support beam 408 can separate a battery cell installation area 409 inside the frame 400, and can also enhance the internal strength of the battery pack tray 4, improving the impact resistance of the battery pack tray 4.

[0091] In one embodiment, a coolant pipe is disposed inside the battery pack support beam 408. The coolant pipe is connected to the power distribution integration module 2 and is used to deliver coolant to the power distribution integration module 2 for cooling. The power distribution integration module 2 also needs to consider temperature control to prevent damage due to excessive temperature. The coolant can be input into the power distribution integration module 2 for cooling.

[0092] In one embodiment, the inside of the battery pack support beam 408 is used to dispose a cable (wire harness). The cable (wire harness) is used for electrically connecting the power distribution integration module 2 and / or the battery cell module 3. The battery pack support beam 408 provides a laying space for the cable (wire harness). Both the power distribution integration module 2 and the battery cell module 3 need to be electrically connected to the outside. By disposing the cable (wire harness) inside the battery pack support beam 408, the internal space occupation of the battery pack is saved.

[0093] In one embodiment, as Figure 2 、 Figure 3 shown, the frame 400 includes:

[0094] A first end beam 402, the first end beam 402 is disposed on the first side of the frame 400;

[0095] A second end beam 404, the second end beam 404 is disposed on the third side of the frame 400,

[0096] A first side beam 401, the first side beam 401 is disposed on the second side of the frame 400, the first end of the first side beam 401 is connected to the first end beam 402, and the second end of the first side beam 401 is connected to the second end beam 404;

[0097] A second side beam 403, the second side beam 403 is disposed on the fourth side of the frame 400, the first end of the second side beam 403 is connected to the first end beam 402, and the second end of the second side beam 403 is connected to the second end beam 404.

[0098] The first end beam 402, the first side beam 401, the second end beam 404, and the second side beam 403 are connected end to end to form a rectangular frame, forming the main load-bearing structure of the battery pack tray 4, which can strengthen the external strength of the battery pack tray 4 and improve the impact resistance of the battery pack tray 4.

[0099] In one embodiment, as Figure 1 、 Figure 2 shown, the battery pack tray 4 further includes:

[0100] A bottom plate 414, the bottom plate 414 is connected to the frame 400;

[0101] A cooling channel is provided inside the bottom plate 414, and the cooling channel extends to the battery cell installation area 409, or the cooling channel extends to the battery cell installation area 409 and the power distribution installation area 410.

[0102] The bottom plate 414 bears the battery cell module 3 on one hand and constitutes the cooling mechanism of the battery cell module 3, and can also constitute the cooling mechanism of the power distribution integration module 2 at the same time.

[0103] In one embodiment, as Figure 1 、 Figure 2 shown, the battery pack tray 4 further includes:

[0104] A liquid inlet 411, the liquid inlet 411 is disposed on the first end beam 402 or the second end beam 404, and the liquid inlet 411 is used to connect a coolant pipe or the cooling channel in the bottom plate 414;

[0105] The liquid outlet 412 is provided at the first end beam 402 or the second end beam 404. The liquid outlet 412 is used to connect the coolant pipe or the cooling channel in the bottom plate 414.

[0106] The inlet port 411 and the liquid outlet 412 are connected to the coolant pipe, and the coolant pipe is connected to the power distribution integration module 2 to circulate the coolant. This is the first cooling technical solution for the power distribution integration module 2.

[0107] The inlet port 411 and the liquid outlet 412 are connected to the cooling channels in the bottom plate 414, specifically the part of the bottom plate 414 corresponding to the power distribution installation area 410. The cooling channels in this part can independently circulate the coolant through the inlet port 411 and the liquid outlet 412, which is an independently controlled area (the pipes in this part are not connected to the cold plate water inlet 413). This is the second cooling technical solution for the power distribution integration module 2.

[0108] The inlet port 411 and the liquid outlet 412 are externally connected to the coolant supply device through pipes. The coolant supply device includes devices such as a liquid storage tank, a liquid pump, and a radiator, which can circulate and supply coolant for the battery pack.

[0109] In one embodiment, as Figure 1 , Figure 2 shown, the battery pack tray 4 further includes:

[0110] The cold plate water inlet 413 is provided at the first end beam 402. The cold plate water inlet 413 is used to connect the cooling channels in the bottom plate 414. Specifically, it is the part of the bottom plate 414 corresponding to the battery cell installation area 409. The cooling channels in this part can circulate the coolant through the cold plate water inlet 413.

[0111] The cold plate water inlet 413 is externally connected to the coolant supply device through pipes. The coolant supply device includes devices such as a liquid storage tank, a liquid pump, and a radiator, which can circulate and supply coolant for the battery pack.

[0112] As Figure 1 , Figure 2 shown, the embodiment of the present utility model further provides a battery pack, including the battery pack tray 4 described in any one of the above embodiments.

[0113] In one embodiment, as Figure 1 , Figure 2 shown, the battery pack further includes:

[0114] The top cover 1 is connected to the frame 400. The top cover 1 seals the battery cell installation area 409 and the power distribution installation area 410. After assembling the power distribution integration module 2 and the battery cell module 3 in the battery pack tray 4, the top cover 1 is assembled to complete the sealing of the battery pack.

[0115] In one embodiment, asFigure 1 , Figure 2 As shown in Figure 2 , the top cover 1 includes a first cover plate 101 and a second cover plate 102. The second cover plate 102 is disposed inside the first cover plate 101. The first cover plate 101 is disposed corresponding to the battery cell installation area 409, and the second cover plate 102 is disposed corresponding to the power distribution installation area 410.

[0116] The first cover plate 101 is provided with an entrance / exit corresponding to the second cover plate 102, and the area of the entrance / exit can be larger than the area of the power distribution integration module 2. The second cover plate 102 and the first cover plate 101 can be combined by screws, and the second cover plate 102 can be opened or closed independently, which is convenient for the maintenance of the power distribution integration module 2.

[0117] In one embodiment, as Figure 1 , Figure 2 shown, the battery pack further includes:

[0118] A power distribution integration module 2, which is disposed in the power distribution installation area 410. The power distribution integration module 2 includes, but is not limited to, a battery control module, an electronic control module, a compressor control module, and a power supply module.

[0119] In one embodiment, the battery pack further includes:

[0120] A battery cell module 3, which is disposed in the battery cell installation area 409. The battery cell module 3 is an energy storage component of the battery pack and can adopt lithium-ion battery cells, sodium-ion battery cells, etc.

[0121] As Figure 3 , Figure 4 , Figure 5 shown, in a preferred embodiment, a battery pack support beam 408 includes: a support portion, a first receiving groove 485, and a second receiving groove 491;

[0122] The first receiving groove 485 is disposed on a first side of the support portion in a first direction. The first receiving groove 485 is used to receive wire harnesses. The first direction can be the Y-axis direction in the figure, and the first side can be the left side of the battery pack support beam 408 in the figure. The low-voltage wire harness 5 can be received in the first receiving groove 485;

[0123] The second receiving groove 491 is disposed on a second side of the support portion in the first direction. The second receiving groove 491 is used to receive wire harnesses. The second side can be the right side of the battery pack support beam 408 in the figure. The high-voltage wire harness 6 can be received in the second receiving groove 491;

[0124] The support portion isolates the first receiving groove 485 and the second receiving groove 491, and the low-voltage wire harness 5 and the high-voltage wire harness 6 will be isolated to avoid adverse reactions between the wire harnesses, such as short circuits due to damage.

[0125] In the battery pack support beam 408 of this embodiment, the first accommodation groove and the second accommodation groove are isolated through its own support structure, without the need to additionally design components, that is, the high-voltage and low-voltage wiring harnesses can be reliably isolated, avoiding adverse reactions, enhancing the safety and stability of the battery pack, thus simplifying the isolation structure and reducing the manufacturing cost.

[0126] In one embodiment, as Figure 3 、 Figure 4 、 Figure 5 shown, the support portion includes:

[0127] A second support portion 482, which is arranged in the middle of the battery pack support beam 408 in the second direction; the second direction can be the Z-axis direction in the figure;

[0128] A first accommodation groove 485 is arranged on the first side of the second support portion 482 in the first direction, and a second accommodation groove 491 is arranged on the second side of the second support portion 482 in the first direction.

[0129] With this arrangement, the second support portion 482 can form a shield between the low-voltage wiring harness 5 and the high-voltage wiring harness 6, protecting the low-voltage wiring harness 5 from electromagnetic interference of the high-voltage wiring harness 6. Moreover, the first accommodation groove 485 and the second accommodation groove 491 are also located in the middle of the battery pack support beam 408 in the second direction, facilitating the arrangement of the accommodation grooves by using the structural space of the battery pack support beam 408.

[0130] The X-axis direction in the figure is the third direction, which is the length direction of the battery pack support beam 408.

[0131] In one embodiment, as Figure 3 、 Figure 4 、 Figure 5 shown, the second support portion 482 includes one or more support plates, and the support plates extend in the second direction to isolate the first accommodation groove 485 and the second accommodation groove 491.

[0132] When multiple support plates are arranged, the multiple support plates can be arranged in parallel. By arranging multiple support plates, a relatively stable and reliable support strength is provided, which can meet the support strength requirements of the battery pack support beam 408.

[0133] In one embodiment, as Figure 3 、 Figure 4 、 Figure 5 shown, the support portion further includes:

[0134] A first support portion 481, which is arranged at the first end of the battery pack support beam 408 in the second direction;

[0135] The first end of the second support portion 482 is fixedly connected to the first support portion 481. Specifically, the first end of the support plate in the second support portion 482 may be fixedly connected to the first support portion 481.

[0136] The first support portion 481 may be connected to the top cover 1 of the battery pack tray 4, so that the battery pack support beam 408 and the top cover 1 form a stable support relationship.

[0137] In one embodiment, as Figure 3 、 Figure 4 、 Figure 5 shown, the support portion further includes:

[0138] A third support portion 483, which is provided at the second end of the battery pack support beam 408 in the second direction;

[0139] The second end of the second support portion 482 is fixedly connected to the third support portion 483. Specifically, the second end of the support plate in the second support portion 482 may be fixedly connected to the first support portion 481.

[0140] The second support portion 482 may be connected to the bottom plate 414 of the battery pack tray 4, so that the battery pack support beam 408 and the bottom plate 414 form a stable support relationship.

[0141] The first support portion 481, the second support portion 482, and the third support portion 483 may be integrally formed. For example, the battery pack support beam 408 adopts a profile manufacturing process, and while being manufactured and formed, the first support portion 481, the second support portion 482, and the third support portion 483 are integrally formed at the same time. This can improve the manufacturing efficiency and ensure the connection strength between the three.

[0142] The first support portion 481, the second support portion 482, and the third support portion 483 may also be separately formed and fixedly connected together through processes such as welding.

[0143] In one embodiment, as Figure 3 、 Figure 4 、 Figure 5 shown, the first support portion 481 and / or the third support portion 483 is a rectangular frame.

[0144] The rectangular frame has a relatively large support surface, which is convenient for the battery pack support beam 408 to support each other with the top cover 1 and the bottom plate 414 respectively. The rectangular frame has relatively stable and reliable support strength, which can meet the support strength requirements of the battery pack support beam 408. Moreover, installation spaces are reserved in the first support portion 481 and the third support portion 483, and other pipelines or wire harnesses can be continuously laid. For example, it can be used to lay coolant pipes.

[0145] In one embodiment, as Figure 3 、 Figure 4, Figure 5 As shown, the width of the first support portion 481 and / or the width of the third support portion 483 are greater than the width of the second support portion 482.

[0146] The widths of both the first support portion 481 and the third support portion 483 are greater than the width of the second support portion 482. The first receiving groove 485 and the second receiving groove 491 are respectively arranged on both sides of the second support portion 482. By setting the width of the second support portion 482 to be the smallest, space can be left on both sides of the second support portion 482 for arranging the first receiving groove 485 and the second receiving groove 491, and the overall width of the battery pack support beam 408 will not be increased, avoiding occupying too much space in the battery pack.

[0147] In one embodiment, as Figure 5 , Figure 6 , Figure 7 shown, the battery pack support beam 408 further includes:

[0148] A first side wall 484, the first side wall 484 is arranged on the first side of the second support portion 482 in the first direction, and is spaced from the second support portion 482 by a predetermined distance to form the first receiving groove 485.

[0149] The first side wall 484 is flush with the left side walls of the first support portion 481 and the third support portion 483. The height of the first side wall 484 is less than the height of the second support portion 482. By arranging the first side wall 484, the first receiving groove 485 can be formed with a relatively simple structure. The first side wall 484 and the first support portion 481 can be integrally formed.

[0150] In one embodiment, as Figure 5 , Figure 6 , Figure 7 shown, the battery pack support beam 408 further includes:

[0151] A first baffle 486, the first baffle 486 is arranged on the second support portion 482 and extends obliquely towards the first side wall 484;

[0152] A second baffle 487, the second baffle 487 is arranged on the first side wall 484 and extends obliquely towards the second support portion 482;

[0153] The gap between the first baffle 486 and the second baffle 487 forms the entrance and exit of the first receiving groove 485.

[0154] With this arrangement, it is convenient for the low-voltage wire harness 5 to enter the first receiving groove 485, and a limiting structure can be formed for the low-voltage wire harness 5 to prevent the low-voltage wire harness 5 from detaching from the first receiving groove 485. The first baffle 486 and the second support portion 482 can be integrally formed, and the second baffle 487 and the first side wall 484 can be integrally formed.

[0155] In one embodiment, as Figure 5 , Figure 6 , Figure 7 shown, the battery pack support beam 408 further includes:

[0156] A second side wall 490 is disposed on the second side in the first direction of the second support portion 482, and is spaced apart from the second support portion 482 by a predetermined distance to form a second receiving groove 491.

[0157] The second side wall 490 is flush with the right side wall of the first support portion 481 and the right side wall of the third support portion 483. The height of the second side wall 490 is less than the height of the second support portion 482. By providing the second side wall 490, the second receiving groove 491 can be formed with a relatively simple structure. The second side wall 490 and the first support portion 481 can be integrally formed.

[0158] In one embodiment, as Figure 5 , Figure 6 , Figure 7 shown, the battery pack support beam further includes:

[0159] A third baffle 492 is disposed on the second support portion 482 and extends obliquely toward the first side wall 484, for example, it can be inclined at an angle of 45 degrees or 60 degrees, etc.;

[0160] A fourth baffle 493 is disposed on the second side wall 490 and extends obliquely toward the second support portion 482, for example, it can be inclined at an angle of 45 degrees or 60 degrees, etc.;

[0161] The gap between the third baffle 492 and the fourth baffle 493 forms the entrance and exit of the second receiving groove 491.

[0162] With this setting, it is convenient for the high-voltage wire harness 6 to enter the second receiving groove 491, and a limiting structure can be formed for the high-voltage wire harness 6 to prevent the high-voltage wire harness 6 from detaching from the second receiving groove 491. The third baffle 492 and the second support portion 482 can be integrally formed, and the fourth baffle 493 and the second side wall 490 can be integrally formed.

[0163] In one embodiment, as Figure 5 , Figure 6 , Figure 7 shown, the height of the first side wall 484 is not equal to the height of the second side wall 490.

[0164] With this setting, the volumes of the first receiving groove 485 and the second receiving groove 491 can be different. For example, the height of the second side wall 490 is greater than the height of the first side wall 484, the volume of the second receiving groove 491 is greater than the volume of the first receiving groove 485. The first receiving groove 485 is suitable for receiving the low-voltage wire harness 5 with a smaller diameter, and the second receiving groove 491 is suitable for receiving the high-voltage wire harness 6 with a larger diameter.

[0165] In one embodiment, as Figure 5 、 Figure 6 、 Figure 7 shown, the widths of the entrances and exits of the first receiving groove 485 and the second receiving groove 491 are not equal.

[0166] The width of the entrance and exit of the first receiving groove 485 can be greater than the diameter of the low-voltage wire harness 5 and less than the diameter of the high-voltage wire harness 6, and the width of the entrance and exit of the second receiving groove 491 is greater than the diameter of the high-voltage wire harness 6. With this setting, the width of the entrance and exit of the first receiving groove 485 is suitable for passing the low-voltage wire harness 5 with a smaller diameter, and the width of the entrance and exit of the second receiving groove 491 is suitable for passing the high-voltage wire harness 6 with a larger diameter. The high-voltage wire harness 6 cannot pass through the entrance and exit of the first receiving groove 485 (anti-fooling design), effectively avoiding incorrect installation.

[0167] In one embodiment, as Figure 5 、 Figure 6 、 Figure 7 shown, the battery pack support beam 408 further includes:

[0168] A first reinforcing plate, which is arranged at the connection of the first support portion 481 and the second support portion 482 and is respectively connected to the first support portion 481 and the second support portion 482;

[0169] A second reinforcing plate, which is arranged at the connection of the second support portion 482 and the third support portion 483 and is respectively connected to the second support portion 482 and the third support portion 483.

[0170] The first reinforcing plate and the first support portion 481 and the second support portion 482 form a triangular structure, which can strengthen the connection strength between the first support portion 481 and the second support portion 482 and prevent the first support portion 481 and the second support portion 482 from cracking and deforming at the connection.

[0171] The second reinforcing plate and the second support portion 482 and the third support portion 483 form a triangular structure, which can strengthen the connection strength between the second support portion 482 and the third support portion 483 and prevent the second support portion 482 and the third support portion 483 from cracking and deforming at the connection.

[0172] The lengths of the first reinforcement plate and the second reinforcement plate can be equal to the length of the battery pack support beam 408. Specifically, the first reinforcement plate includes the first diagonal reinforcement plate 488 and the second diagonal reinforcement plate 494 in the figure, and the second reinforcement plate includes the third diagonal reinforcement plate 489 and the fourth diagonal reinforcement plate 495 in the figure.

[0173] In one embodiment, as Figure 5 , Figure 6 , Figure 7 shown, the first diagonal reinforcement plate 488 is disposed at the connection of the first support portion 481 and the second support portion 482, and is fixedly connected to the first support portion 481 and the second support portion 482 respectively;

[0174] The third diagonal reinforcement plate 489 is disposed at the connection of the second support portion 482 and the third support portion 483, and is fixedly connected to the second support portion 482 and the third support portion 483 respectively.

[0175] The first diagonal reinforcement plate 488 and the first support portion 481 and the second support portion 482 form a triangular structure, which can strengthen the connection strength between the first support portion 481 and the second support portion 482 on the left side and prevent the first support portion 481 and the second support portion 482 from cracking and deforming on the left side.

[0176] The third diagonal reinforcement plate 489 and the second support portion 482 and the third support portion 483 form a triangular structure, which can strengthen the connection strength between the second support portion 482 and the third support portion 483 on the left side and prevent the second support portion 482 and the third support portion 483 from cracking and deforming on the left side. The third diagonal reinforcement plate 489 is specifically located at the bottom of the first receiving groove 485.

[0177] The first diagonal reinforcement plate 488 and the third diagonal reinforcement plate 489 can further increase the structural strength of the battery pack support beam 408, so that when the battery cell expansion force acts on both sides of the battery pack support beam 408, it has a better inhibitory effect. The number of the first diagonal reinforcement plate 488 and the third diagonal reinforcement plate 489 can be increased according to the magnitude of the expansion force of the battery cells in actual situations.

[0178] In one embodiment, as Figure 5 , Figure 6 , Figure 7 shown, the second diagonal reinforcement plate 494 is disposed at the connection of the first support portion 481 and the second support portion 482, and is fixedly connected to the first support portion 481 and the second support portion 482 respectively;

[0179] The fourth diagonal reinforcement plate 495 is disposed at the connection of the second support portion 482 and the third support portion 483, and is fixedly connected to the second support portion 482 and the third support portion 483 respectively.

[0180] The second diagonal reinforcing plate 494 and the first support portion 481 and the second support portion 482 form a triangular structure, which can strengthen the connection strength between the first support portion 481 and the second support portion 482 on the right side and prevent the first support portion 481 and the second support portion 482 from cracking and deforming on the right side.

[0181] The fourth diagonal reinforcing plate 495 and the second support portion 482 and the third support portion 483 form a triangular structure, which can strengthen the connection strength between the second support portion 482 and the third support portion 483 on the right side and prevent the second support portion 482 and the third support portion 483 from cracking and deforming on the right side. The fourth diagonal reinforcing plate 495 is specifically located at the bottom of the second receiving groove 491.

[0182] The second diagonal reinforcing plate 494 and the fourth diagonal reinforcing plate 495 can further increase the structural strength of the battery pack support beam 408, so that when the battery cells expand on both sides of the battery pack support beam 408, it has a better inhibitory effect. The number of the second diagonal reinforcing plate 494 and the fourth diagonal reinforcing plate 495 can be increased according to the magnitude of the expansion force of the battery cells in actual situations.

[0183] As Figure 1 、 Figure 2 shown, an embodiment of the present invention also provides a battery pack, including the battery pack support beam 408 described in any one of the above embodiments.

[0184] In one embodiment, the battery pack further includes:

[0185] A battery pack tray 4, and the battery pack support beam 408 is arranged on the battery pack tray 4. The specific arrangement scheme can refer to the foregoing description.

[0186] An embodiment of the present invention also provides a vehicle, including the battery pack described in any one of the above embodiments.

[0187] A battery pack support beam, a battery pack and a vehicle of the present invention have the following characteristics:

[0188] The present invention ensures that the strength of the support beam mechanism can effectively cope with the local expansion in the middle of the battery cells.

[0189] The present invention realizes the integration of the support beam and the high and low voltage wiring harness, reduces additional design, is easy to process, effectively reduces costs, effectively utilizes the internal space of the support beam, and ensures good isolation of the high and low voltage wiring harness; at the same time, the wiring harness does not directly contact metal parts such as the battery box body and the module, preventing the wiring harness from being damaged by friction and possible shaking noise.

[0190] The utility model controls the routing of high-voltage and low-voltage wire harnesses by using the structure of the support beam itself. There is no need to reserve a position for fixing the wire harness bracket in the traditional way, avoiding the situation of some wire harnesses being suspended, which can save the space of the box body, improve the space utilization rate of the battery pack, and facilitate the overall layout of the battery system solution.

[0191] In all the above preferred embodiments, the processes and steps described are only examples. Unless adverse effects occur, various processing operations can be carried out in an order different from the order of the above processes. The order of the steps of the above processes can also be increased, combined or deleted according to actual needs.

[0192] When understanding the scope of the present utility model, as used herein, the term "comprising" and its derivatives are intended to be open-ended terms, which specify the presence of the recited features, elements, components, groups, wholes and / or steps, but do not exclude the presence of other unrecited features, elements, components, groups, wholes and / or steps. This concept also applies to words with similar meanings, such as the terms "including", "having" and their derivatives.

[0193] As used herein, the term "attached" or "attachment" includes: a configuration in which an element is directly fixed to another element by directly fixing the element to the other element; a configuration in which an element is indirectly fixed to another element by fixing the element to an intermediate member, and the intermediate member is in turn fixed to the other element; and a configuration in which one element is integral with another element, that is, one element is substantially a part of the other element. This definition also applies to words with similar meanings, such as "connected", "coupled", "joined", "mounted", "adhered", "fixed" and their derivatives. Finally, degree terms such as "substantially", "about" and "approximately" used herein represent the amount of deviation that modifies the term so that the final result will not change significantly.

[0194] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the technical field of the present utility model. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0195] The present utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit the present utility model within the scope of the described embodiments. In addition, those skilled in the art can understand that the present utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present utility model, and these variations and modifications all fall within the scope of protection required by the present utility model.

Claims

1. A battery pack support beam, characterized in that: include: Supporting part; A first accommodating groove (485), the first accommodating groove (485) being arranged on a first side in a first direction of the supporting portion, the first accommodating groove (485) being used to accommodate a wiring harness; A second accommodating groove (491), the second accommodating groove (491) being arranged on a second side of the support portion in the first direction, the second accommodating groove (491) being used to accommodate a wiring harness; The support portion isolates the first receiving groove (485) and the second receiving groove (491).

2. The battery pack support beam according to claim 1, characterized in that: The support portion comprises: A second support portion (482), the second support portion (482) being arranged in the middle of the battery pack support beam in the second direction; The first receiving groove (485) is arranged on a first side of the second supporting portion (482) in the first direction, and the second receiving groove (491) is arranged on a second side of the second supporting portion (482) in the first direction.

3. The battery pack support beam according to claim 2, characterized in that: The second supporting portion (482) includes one or more supporting plates, and the supporting plates extend in the second direction to isolate the first accommodating groove (485) from the second accommodating groove (491).

4. The battery pack support beam according to claim 2, characterized in that: The support portion further comprises: A first support portion (481), the first support portion (481) being arranged at a first end in a second direction of the battery pack support beam; The first end of the second supporting portion (482) is connected to the first supporting portion (481).

5. The battery pack support beam according to claim 4, characterized in that: The support portion further comprises: A third support portion (483), the third support portion (483) being arranged at a second end of the battery pack support beam in a second direction; The second end of the second supporting portion (482) is connected to the third supporting portion (483).

6. The battery pack support beam according to claim 5, characterized in that: The first supporting portion (481) and / or the third supporting portion (483) is a rectangular frame.

7. The battery pack support beam according to claim 5, characterized in that: The width of the first supporting portion (481) and / or the width of the third supporting portion (483) is greater than the width of the second supporting portion (482).

8. The battery pack support beam according to claim 2, characterized in that: Also includes: A first side wall (484), wherein the first side wall (484) is disposed on a first side in a first direction of the second supporting portion (482), and is spaced a predetermined distance from the second supporting portion (482) to form the first receiving groove (485).

9. The battery pack support beam according to claim 8, characterized in that: Also includes: a first baffle (486), the first baffle (486) being disposed on the second supporting portion (482) and extending obliquely toward the first side wall (484); a second baffle (487), the second baffle (487) being disposed on the first side wall (484) and extending obliquely toward the second supporting portion (482); The gap between the first baffle plate (486) and the second baffle plate (487) forms an entrance and exit of the first receiving groove (485).

10. The battery pack support beam according to claim 8, characterized in that: Also includes: A second side wall (490), the second side wall (490) is arranged on the second side of the second supporting portion (482) in the first direction, and is spaced a predetermined distance from the second supporting portion (482) to form the second receiving groove (491).

11. The battery pack support beam according to claim 10, characterized in that: Also includes: a third baffle (492), the third baffle (492) being disposed on the second supporting portion (482) and extending obliquely toward the first side wall (484); a fourth baffle (493), the fourth baffle (493) being disposed on the second side wall (490) and extending obliquely toward the second supporting portion (482); The gap between the third baffle plate (492) and the fourth baffle plate (493) forms an entrance and exit of the second containing groove (491).

12. The battery pack support beam according to claim 11, characterized in that: The height of the first side wall (484) is different from the height of the second side wall (490).

13. The battery pack support beam according to claim 11, characterized in that: The width of the entrance and exit of the first containing groove (485) is different from the width of the entrance and exit of the second containing groove (491).

14. The battery pack support beam according to claim 5, characterized in that: Also includes: A first reinforcing plate, the first reinforcing plate being arranged at the connection between the first supporting portion (481) and the second supporting portion (482), and being connected to the first supporting portion (481) and the second supporting portion (482) respectively; A second reinforcing plate, wherein the second reinforcing plate is arranged at the connection between the second supporting portion (482) and the third supporting portion (483), and is respectively connected to the second supporting portion (482) and the third supporting portion (483).

15. A battery pack, characterized in that: Comprising a battery pack support beam (408) according to any one of claims 1-14.

16. A vehicle, characterized in that: Comprising the battery pack according to claim 15.

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