Battery pack and electric vehicle comprising same

Abstract

The invention provides a battery pack and an electric vehicle comprising the same, the battery pack comprises a battery body, a battery end connector and a pipeline, the side edge of the battery body perpendicular to the driving direction of the electric vehicle is provided with a connecting part, and the battery end connector is arranged on the side edge of the battery body along the driving direction; two ends of the pipeline are respectively connected to the connecting part and the battery end connector; when the distance between the connecting part and the battery end connector is greater than or equal to a preset distance, the pipeline is arranged in a first path; and when the distance between the connecting part and the battery end connector is smaller than or equal to the preset distance, the pipeline is arranged in a second path. Therefore, the arrangement reasonability of the pipelines can be ensured under different conditions, the minimization of the volume of the battery pack can be ensured, and the minimization of the length of the used pipelines can be ensured. And meanwhile, the wiring flexibility is also improved to adapt to the condition that the battery pack faces different directions or the connecting part is at different positions. And the distance between the connecting part and the battery end connector can accurately reflect a proper pipeline arrangement mode.

Description

Technical Field

[0001] The present invention relates to a battery pack and an electric vehicle comprising the same. Background Art

[0002] Currently, automobile exhaust emissions remain a significant factor in environmental pollution. To address these issues, natural gas vehicles, hydrogen fuel vehicles, solar vehicles, and electric vehicles have been developed to replace fuel-powered vehicles. Among these, electric vehicles hold the greatest potential for application. Currently, electric vehicles primarily come in two types: direct-charging and quick-change models. Due to limitations in charging time and location, many new energy electric vehicles are increasingly adopting quick-change battery recharge methods.

[0003] When replacing batteries in electric vehicles, the battery swapping equipment removes the depleted batteries from the electric vehicle and transfers them to the battery transfer equipment. The battery transfer equipment then transfers the depleted batteries to the battery compartment for charging. Afterwards, the battery transfer equipment removes the fully charged batteries from the battery compartment and transfers them to the battery swapping equipment, which then installs the fully charged batteries into the electric vehicle.

[0004] Among them, the fully charged battery is installed in the electric vehicle by installing the fully charged battery on the quick-change bracket located at the bottom of the electric vehicle. The quick-change bracket is provided with a body-end electrical connector for electrically connecting the battery-end electrical connector to the battery. At the same time, the quick-change bracket is also provided with a locking mechanism for locking the battery to the quick-change bracket. Due to the large weight of the battery, the quick-change bracket needs to have matching strength to achieve reliable connection and installation of the battery.

[0005] The pipelines inside electric vehicles are important components for connecting the battery pack to the electric vehicle. Improper connection and layout of the pipelines will affect the stability of the connection between the battery pack and the electric vehicle, cause waste of pipeline resources, and be unfavorable for adapting to various situations. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a battery pack and an electric vehicle comprising the same.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] A battery pack, comprising a battery body, a battery terminal connector, and a pipeline, wherein the battery body is provided with a connecting portion on a side perpendicular to the direction of travel of the electric vehicle, the battery terminal connector is provided on the side of the battery body along the direction of travel, and both ends of the pipeline are connected to the connecting portion and the battery terminal connector, respectively;

[0009] When the distance between the connecting portion and the battery end connector is greater than or equal to a preset distance, the pipeline is arranged in a first path; when the distance between the connecting portion and the battery end connector is less than or equal to a preset distance, the pipeline is arranged in a second path.

[0010] In this solution, different pipeline arrangement paths are set according to the different distances between the connecting part and the battery end connector, so as to ensure the rationality of the pipeline arrangement in different situations, thereby preventing inappropriate pipeline arrangement paths from causing the pipeline to occupy too much space or causing the use of too many and too long pipelines, which is beneficial to minimizing the volume of the battery pack and minimizing the length of the pipelines used. At the same time, setting different pipeline arrangement paths based on different distances improves the wiring flexibility to adapt to different orientations of the battery pack or different positions of the connecting part. On the other hand, the distance between the connecting part and the battery end connector is used as the basis for path selection. This is because the area between the connecting part and the battery end connector is the place where the pipeline must pass, and the size of the distance between the connecting part and the battery end connector can accurately reflect the appropriate pipeline arrangement method.

[0011] Preferably, the interface direction of the connecting portion is perpendicular to the driving direction of the electric vehicle;

[0012] Alternatively, the interface direction of the connecting portion is parallel to the traveling direction of the electric vehicle;

[0013] Alternatively, the interface direction of the connecting portion is parallel to the height direction of the electric vehicle.

[0014] In this solution, the interface direction of the connecting part can be adjusted according to the internal structure of the battery pack to further ensure the minimization of the battery pack volume and the minimization of the pipeline length; on the other hand, the connection stability can also be ensured by changing the interface direction of the connecting part.

[0015] Preferably, in the first path, the pipeline bypasses or passes through functional components in the battery pack;

[0016] And / or, in the second path, the pipeline is directly connected to the battery terminal connector from the connecting portion without bypassing the functional components in the battery pack.

[0017] In this solution, when arranged in the first path, the distance between the connecting part and the battery end connector is greater than or equal to the preset distance, that is, the distance between the connecting part and the battery end connector is large. In order to improve space utilization, some functional components can be set in the area between the connecting part and the battery end connector. The pipeline passes through or bypasses the functional components from the connecting part and then connects to the battery end connector, which is conducive to minimizing the volume of the battery pack; on the other hand, the pipeline passes through or bypasses the functional components, so that the functional components can play a role in positioning and fixing the pipeline, especially when the distance between the connecting part and the battery end connector is large, which ensures the reasonable stability of the pipeline arrangement over long distances, thereby improving the connection stability of the connecting part and the battery end connector.

[0018] When arranged in the second path, the distance between the connecting part and the battery end connector is less than or equal to the preset distance, that is, the distance between the connecting part and the battery end connector is small, and the pipeline is directly connected from the connecting part to the battery end connector, which is conducive to minimizing the length of the pipeline used.

[0019] Preferably, the preset distance is the distance between the side of the battery body and the center line of the battery body perpendicular to the driving direction of the electric vehicle.

[0020] In this solution, the above-mentioned structural form is adopted, that is, half the size of the battery body is used as the basis for selecting the path.

[0021] Preferably, a accommodating area is provided on a side of the battery body perpendicular to the traveling direction, and the connecting portion and at least a portion of the pipeline are provided in the accommodating area.

[0022] In this solution, through the accommodating area, on the one hand, the connecting parts and pipelines are concentrated in this accommodating area, which has a compact structure and reduces the space occupied by the battery body; on the other hand, the accommodating area can be used to protect the connecting parts and pipelines, thereby improving the connection stability and service life of the connecting parts and the battery end connector.

[0023] Preferably, the battery body includes a stacked upper battery body and a lower battery body, the upper battery body is provided with a first accommodating area, the lower battery body is provided with a second accommodating area, and a pipeline is provided between the first accommodating area and the second accommodating area to connect the upper battery body and the lower battery body.

[0024] In this solution, the battery body increases the battery capacity by stacking upper and lower battery body structures; the upper and lower battery bodies are connected into a whole through pipelines between the two accommodating areas.

[0025] Preferably, in the driving direction of the electric vehicle, the size of the upper battery body is smaller than that of the lower battery body, and the second accommodating area is located at the portion of the lower battery body that exceeds the upper battery body.

[0026] In this solution, the excess space formed by the different sizes of the upper and lower battery bodies is fully utilized to form a second accommodating area where connectors and pipelines can be centrally arranged, resulting in a compact structure.

[0027] Preferably, the battery end connector includes an electrical connector and / or a liquid cooling connector; the pipeline includes a wiring harness connected to the electrical connector and / or a connecting pipe connected to the liquid cooling connector; the connecting part includes a terminal connected to the wiring harness and / or a liquid cooling interface connected to the connecting pipe.

[0028] In this solution, the battery end connector, pipelines and connecting parts separate the connecting pipes for communicating with liquids and the wiring harnesses for connecting with electronic components, and connect them separately.

[0029] Preferably, the battery pack further includes a power supply control terminal, and the power supply control terminal is connected between the wiring terminal and the electrical connector.

[0030] In this solution, the power supply control terminal can control and adjust the electric energy delivered by the battery pack (including disconnection, delivery duration, transmission path selection, etc.), which is conducive to achieving the functional diversity and safety of the battery pack.

[0031] Preferably, the wiring harness includes a high-voltage cable and a low-voltage cable, and the wiring terminals include a high-voltage wiring terminal and a low-voltage wiring terminal; the high-voltage cable and the low-voltage cable are connected to the high-voltage wiring terminal and the low-voltage wiring terminal respectively;

[0032] Wherein, at least the high-voltage cables are arranged in a first path or in a second path.

[0033] In this solution, the above-mentioned structural form can prevent the high-voltage cable and the low-voltage cable from interfering with each other, which is conducive to ensuring that both the high-voltage cable and the low-voltage cable are stably connected.

[0034] An electric vehicle comprises the battery pack as described above.

[0035] In this solution, when the electric vehicle adopts the above-mentioned battery pack, it is beneficial to minimize the volume of the electric vehicle, minimize the length of the pipelines inside the electric vehicle, and improve the wiring flexibility inside the electric vehicle.

[0036] Preferably, the battery packs are installed on both sides of the electric vehicle in a direction perpendicular to the driving direction of the electric vehicle, and the battery end connectors of the battery packs on both sides of the electric vehicle are arranged opposite to each other;

[0037] The pipelines of one of the battery packs are arranged along a first path, and the pipelines of the other battery pack are arranged along a second path; or, the pipelines of both battery packs are arranged along the first path; or, the pipelines of both battery packs are arranged along the second path.

[0038] In this solution, when the pipelines of two battery packs are arranged along the first and second paths, respectively, and the battery terminal connectors of the battery packs on both sides are arranged opposite each other, the distance between the connection portion of one battery pack and its battery terminal connector can be larger, while the distance between the connection portion of the other battery pack and its battery terminal connector can be smaller. In other words, the battery packs on both sides can use the same model, eliminating the need to produce two symmetrical battery packs separately, which helps reduce costs. Of course, if the distance between the connection portion of the battery packs on both sides and their battery terminal connectors is equal to the preset distance, it is also possible to use the same model of battery packs on both sides.

[0039] When the pipelines of the two battery packs are arranged along the first path or the second path, and the distance between the connection portion of the battery pack and its battery end connector is equal to the preset distance, the battery packs on both sides can use the same model of battery packs.

[0040] Among them, the battery end connectors of the battery packs on both sides are relatively arranged at one end of the battery body, which is convenient for forming an avoidance space at the other end of the battery body to avoid some functional parts.

[0041] The positive progress effect of the present invention is:

[0042] The present invention sets different pipeline arrangement paths according to the different distances between the connecting portion and the battery end connector, so as to ensure the rationality of pipeline arrangement in different situations, thereby preventing inappropriate pipeline arrangement paths from causing the pipelines to occupy too much space or causing the use of too many and too long pipelines, thereby facilitating minimization of the battery pack volume and the length of the pipelines used. At the same time, different pipeline arrangement paths are set based on different distances, which improves the wiring flexibility to adapt to different orientations of the battery pack or different positions of the connecting portion. On the other hand, the distance between the connecting portion and the battery end connector is used as the basis for path selection. This is because the area between the connecting portion and the battery end connector is the necessary place for the pipeline to pass, and the size of the distance between the connecting portion and the battery end connector can accurately reflect the appropriate pipeline arrangement method. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1This is a schematic structural diagram of a battery pack according to a preferred embodiment of the present invention, in which the shielding member covering the pipeline is hidden.

[0044] Figure 2 This is another structural schematic diagram of the battery pack of a preferred embodiment of the present invention, in which the shell covering the battery terminal connector and the power supply control terminal is hidden.

[0045] Figure 3 This is another structural schematic diagram of a battery pack according to a preferred embodiment of the present invention, showing the upper and lower battery bodies and their pipelines.

[0046] Figure 4 Schematic diagram of the partial structure inside an electric vehicle according to a preferred embodiment of the present invention.

[0047] Figure 5 This is another partial structural diagram of the interior of an electric vehicle according to a preferred embodiment of the present invention, wherein the shielding member covering the pipelines is hidden.

[0048] Figure 6 FIG. 2 is another schematic diagram of a partial structure inside an electric vehicle according to a preferred embodiment of the present invention.

[0049] Description of Reference Numerals

[0050] Battery Pack 1

[0051] Battery body 10

[0052] Upper battery body 100

[0053] Lower battery body 200

[0054] Step 300

[0055] Accommodation area 80

[0056] First accommodating area 810

[0057] Second accommodating area 820

[0058] Battery terminal connector 60

[0059] Electrical connector 610

[0060] Liquid cooling connector 620

[0061] Pipeline 50

[0062] Wiring Harness 510

[0063] High-voltage cable 511

[0064] Low voltage cable 512

[0065] Connecting pipe 520

[0066] Connecting portion 40

[0067] Terminal Block 410

[0068] High voltage terminal block 411

[0069] Low voltage terminal block 412

[0070] Liquid cooling interface 420

[0071] Unlocking lever 20

[0072] Locking member 30

[0073] Power supply control terminal 70

[0074] Locking mechanism 3

[0075] The direction of travel of the electric vehicle A DETAILED DESCRIPTION

[0076] A preferred embodiment is given below and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0077] like Figure 1-Figure 3 As shown, this embodiment discloses a battery pack 1, which includes a battery body 10, a battery end connector 60 and a pipeline 50. The battery body 10 is provided with a connecting portion 40 on the side perpendicular to the driving direction A of the electric vehicle. The battery end connector 60 is provided on the side of the battery body 10 along the driving direction A, and the two ends of the pipeline 50 are respectively connected to the connecting portion 40 and the battery end connector 60.

[0078] When the distance between the connecting portion 40 and the battery end connector 60 is greater than or equal to the preset distance, the pipeline 50 is arranged in a first path; when the distance between the connecting portion 40 and the battery end connector 60 is less than or equal to the preset distance, the pipeline 50 is arranged in a second path.

[0079] Different pipeline 50 arrangement paths are set according to different distances between the connection part 40 and the battery end connector 60 to ensure the rationality of the arrangement of the pipeline 50 in different situations, thereby preventing inappropriate pipeline 50 arrangement paths from causing the pipeline 50 to occupy too much space or causing the use of too many and too long pipelines 50, which is beneficial to minimizing the volume of the battery pack 1 and minimizing the length of the pipeline 50 used. At the same time, setting different pipeline 50 arrangement paths based on different distances improves the wiring flexibility to adapt to different orientations of the battery pack 1 or different positions of the connection part 40. On the other hand, the distance between the connection part 40 and the battery end connector 60 is used as the basis for path selection. This is because the area between the connection part 40 and the battery end connector 60 is the place where the pipeline 50 must pass, and the size of the distance between the connection part 40 and the battery end connector 60 can accurately reflect the appropriate pipeline 50 arrangement method.

[0080] Among them, when the distance between the connecting portion 40 and the battery end connector 60 is equal to the preset distance, the pipeline 50 can be arranged in either the first path or the second path, which can be selected according to actual conditions and actual needs.

[0081] In this embodiment, in the first path, the pipeline 50 bypasses or passes through the functional components in the battery pack 1; in the second path, the pipeline 50 does not bypass the functional components in the battery pack 1 from the connection portion 40 and is directly connected to the battery terminal connector 60.

[0082] When arranged in a first path, the distance between the connecting portion 40 and the battery-end connector 60 is greater than or equal to the preset distance, that is, the distance between the connecting portion 40 and the battery-end connector 60 is relatively large. To improve space utilization, the area between the connecting portion 40 and the battery-end connector 60 can be provided with some functional components. The pipeline 50 passes through or around the functional components from the connecting portion 40 before connecting to the battery-end connector 60, which helps to minimize the volume of the battery pack 1. On the other hand, the pipeline 50 passes through or around the functional components, allowing the functional components to position and secure the pipeline 50. Especially when the distance between the connecting portion 40 and the battery-end connector 60 is relatively large, this ensures the reasonable arrangement and stability of the pipeline 50 over long distances, thereby improving the connection stability between the connecting portion 40 and the battery-end connector 60. When arranged in a second path, the distance between the connecting portion 40 and the battery-end connector 60 is less than or equal to the preset distance, that is, the distance between the connecting portion 40 and the battery-end connector 60 is relatively small. The pipeline 50 is directly connected from the connecting portion 40 to the battery-end connector 60, which helps to minimize the length of the pipeline 50 used. In other embodiments, the first path and the second path may also be in other forms.

[0083] Specifically, the functional component may be a release lever 20, such as Figure 3 As shown, the unlocking lever 20 is located on the side of the battery body 10 perpendicular to the direction of travel A of the electric vehicle. The unlocking lever 20 is used to cooperate with the locking mechanism 3 provided on the electric vehicle to unlock the battery pack 1. As the distance between the connecting portion 40 and the battery terminal connector 60 changes, the pipeline 50 can pass from the connecting portion 40 around the unlocking lever 20 and then connect to the battery terminal connector 60, or it can connect directly from the connecting portion 40 to the battery terminal connector 60. Of course, the functional component can also be other functional components within the battery pack 1.

[0084] In this embodiment, the preset distance is the distance between the side of the battery body 10 and the centerline of the battery body 10, perpendicular to the travel direction A of the electric vehicle. That is, half the size of the battery body 10 is used as the basis for path selection. In other embodiments, one-third the size of the battery body 10 or other sizes may be used as the basis for path selection.

[0085] The interface direction of the connection portion 40 can be perpendicular to the electric vehicle's travel direction A, or aligned with the electric vehicle's travel direction A, or aligned with the height of the electric vehicle. The interface direction of the connection portion 40 can be adjusted based on the internal structure of the battery pack 1 to further minimize the volume of the battery pack 1 and the length of the pipeline 50. Alternatively, the interface direction of the connection portion 40 can be adjusted to ensure connection stability. Figure 1-Figure 3 3 shows a case where the interface direction of the connecting portion 40 is the same as the direction perpendicular to the traveling direction A of the electric vehicle.

[0086] like Figure 1 and Figure 3 As shown, a storage area 80 is provided on the side of the battery body 10 perpendicular to the direction of travel A. The connector 40 and at least a portion of the pipeline 50 are located in the storage area 80. On the one hand, the centralized arrangement of the connector 40 and the pipeline 50 in the storage area 80 creates a compact structure and reduces the space occupied by the battery body. On the other hand, the storage area 80 can be used to protect the connector 40 and the pipeline 50, thereby improving the connection stability and service life of the connector 40 and the battery terminal connector 60.

[0087] In this embodiment, the battery body 10 comprises a stacked upper battery body 100 and a lower battery body 200. The upper battery body 100 has a first storage area 810, and the lower battery body 200 has a second storage area 820. A pipeline 50 is provided between the first storage area 810 and the second storage area 820 to connect the upper battery body 100 and the lower battery body 200. The battery terminal connector 60 comprises a battery terminal electrical connector 610 and a battery terminal liquid cooling connector 620, and the pipeline 50 comprises a wiring harness 510 and a connecting pipe 520. The upper battery body 100 and the lower battery body 200 are connected by the wiring harness 510, connecting the upper and lower battery bodies into a single battery pack 1 and providing overall electrical energy. The coolant lines of the upper and lower battery bodies are connected by a connecting pipe 520, allowing the coolant to flow between the upper and lower battery bodies and circulate with the external liquid cooling interface 420 to achieve an overall cooling effect.

[0088] The battery body 10 has an increased battery capacity by stacking upper and lower battery body structures, which are connected into a whole by a pipeline 50 between two accommodating areas 80 .

[0089] Among them, such as Figure 1-Figure 3As shown, in the electric vehicle's travel direction A, the upper battery body 100 is smaller than the lower battery body 200; the portion of the lower battery body 200 that extends beyond the upper battery body 100 forms a step 300. The second accommodating area 820 is located where the lower battery body 200 extends beyond the upper battery body 100, i.e., below the step 300. The connector 40 and at least a portion of the pipeline 50 are located in the second accommodating area 820.

[0090] The battery pack 1 makes full use of the excess space formed by the different sizes of the upper battery body 100 and the lower battery body 200 to form a second accommodating area 820 in which the connection part 40 and the pipeline 50 can be centrally arranged, with a compact structure; and all connections are arranged in the second accommodating area 820 of the lower battery body 200, so that the pipeline 50 only needs to be connected to the lower battery body 200, and does not need to be connected to the upper battery body 100 and the lower battery body 200 respectively, which facilitates centralized connection.

[0091] Among them, such as Figure 1 As shown, the battery pack 1 also includes a locking member 30, which is disposed on the surface of the step 300, that is, the locking member 30 is disposed above the second accommodating area 820, and is used to cooperate with the locking mechanism 3 on the electric vehicle to lock the battery pack 1. Below the step 300 and within the second accommodating area 820, three unlocking rods 20 are installed on the side of the lower battery body 200 perpendicular to the travel direction A of the electric vehicle. The unlocking rods 20 pass through the second accommodating area 820 and extend in the vertical direction, so as to at least partially penetrate the locking member 30.

[0092] The battery pack 1 has the locking member 30 positioned above the second accommodating area 820, fully utilizing the space above the second accommodating area 820. When the unlocking lever 20 passes through the locking member 30 and rises vertically, it engages with the locking mechanism 3 on the electric vehicle to unlock the battery pack 1. When the unlocking lever 20 descends, the locking member 30 engages with the locking mechanism 3 on the electric vehicle to lock the battery pack 1.

[0093] In other embodiments, due to the different power requirements of electric vehicles, the battery pack 1 may also have only a single-layer battery body 10. In this case, the locking member 30 may be positioned on the side of the battery body 10 in the width direction (i.e., perpendicular to the travel direction A) and located on the surface, and the unlocking lever 20 may be positioned below the locking member 30. In other words, the placement of the locking member 30 and the unlocking lever 20 is independent of whether the battery pack 1 has a single-layer or multi-layer structure.

[0094] Specifically, if Figure 3As shown, in this embodiment, the connection portion 40 specifically includes a terminal block 410 for electrical connection and a liquid cooling interface 420 for communicating with external coolant. Accordingly, the battery-side connector 60 includes an electrical connector 610 and a liquid cooling connector 620, and the pipeline 50 includes a wiring harness 510 connected to the electrical connector 610 and a connecting pipe 520 connected to the liquid cooling connector 620. The wiring harness 510 establishes a circuit between the external electrical connector 610 and the interior of the battery body 10, thereby establishing an electrical connection between the battery pack 1 and the vehicle-side connector to provide power energy for the electric vehicle or control the operation of the battery pack 1. External coolant enters the battery body 10 through the liquid cooling interface 420 to cool the high temperatures generated during use of the battery pack 1.

[0095] In the structure of the battery pack 1 , the battery terminal connector 60 , the pipeline 50 , and the connecting portion 40 distinguish between the connecting pipe 520 for communicating with liquid and the wiring harness 510 for connecting with electronic components, and connect them separately.

[0096] Depending on the heat generation of the battery pack 1 , in other embodiments, if the heat generation of the battery pack 1 is not large and does not require cooling, the battery pack 1 may not have the liquid cooling interface 420 . Accordingly, the pipeline 50 may not include the connecting pipe 520 for liquid, and the battery end connector 60 may not include the liquid cooling connector 620 .

[0097] like Figure 2 and Figure 3 As shown, the battery pack 1 also includes a power supply control terminal 70, which is located on the side of the battery body 10 along the travel direction A. The power supply control terminal 70 is connected between the terminal block 410 and the electrical connector 610. The power supply control terminal 70 can be used to control and adjust the power delivered by the battery pack 1 (including disconnection, delivery duration, transmission path selection, etc.), which helps to achieve the functional diversity and safety of the battery pack 1. The power supply control terminal 70 is located on the side of the battery body 10 along the travel direction A, side by side with the electrical connector 610. This fully utilizes the side space of the battery pack 1 along the travel direction A without occupying the side space of the battery pack 1 perpendicular to the travel direction A. It also helps to shorten the wiring between the power supply control terminal 70 and the electrical connector 610, or to directly plug and connect them.

[0098] like Figure 3 As shown, the wiring harness 510 includes a high-voltage cable 511 and a low-voltage cable 512, and the terminal 410 includes a high-voltage terminal 411 and a low-voltage terminal 412; the high-voltage cable 511 and the low-voltage cable 512 are connected to the high-voltage terminal 411 and the low-voltage terminal 412 respectively; wherein, at least the high-voltage cable 511 is arranged in a first path or in a second path, so as to prevent the high-voltage cable 511 and the low-voltage cable 512 from interfering with each other, which is conducive to ensuring that the high-voltage cable 511 and the low-voltage cable 512 are stably connected.

[0099] like Figure 4-Figure 6 As shown, this embodiment also discloses an electric vehicle, which includes the battery pack 1 as described above. Specifically, along a direction perpendicular to the driving direction A of the electric vehicle, the battery pack 1 is installed on both sides of the electric vehicle, and the battery terminal connectors 60 of the battery packs 1 on both sides of the electric vehicle are arranged opposite to each other. Figure 5 As shown, the pipelines 50 of one battery pack 1 are arranged along a first path, and the pipelines 50 of another battery pack 1 are arranged along a second path.

[0100] With the above arrangement, when the battery end connectors 60 of the battery packs 1 on both sides are arranged relative to each other, the distance between the connection portion 40 of one battery pack 1 and its battery end connector 60 can be larger, while the distance between the connection portion 40 of the other battery pack 1 and its battery end connector 60 can be smaller. In other words, the battery packs 1 on both sides can use the same model of battery pack 1, eliminating the need to produce two symmetrical battery packs 1 separately, which helps reduce costs. Of course, with the above arrangement, when the distance between the connection portion 40 of the battery pack 1 on both sides and its battery end connector 60 is equal to the preset distance, the battery packs 1 on both sides can also use the same model of battery pack 1.

[0101] The battery terminal connectors 60 of the two battery packs 1 are disposed at opposite ends of the battery body 10, thereby facilitating the subsequent creation of a clearance space at the other end of the battery body 10 to accommodate certain functional components. Specifically, the battery terminal connectors 60 of the two battery packs 1 are disposed on the inner sides of the battery packs 1 facing each other.

[0102] Of course, the pipelines 50 of the two battery packs 1 can also be arranged along the first path or the second path. In this case, the same model of battery packs 1 can only be used on both sides if the distance between the connecting portion 40 of the battery pack 1 and its battery terminal connector 60 is equal to the preset distance.

[0103] The arrangement paths of the pipelines 50 of the battery packs 1 on both sides of the electric vehicle are also related to the interface direction of the connecting portion 40 .

[0104] Specifically, when the interface direction of the connecting portion 40 of the two battery packs 1 is perpendicular to the driving direction A of the electric vehicle and is not the height direction of the electric vehicle, regardless of whether the distance between the connecting portion 40 of the battery pack 1 and the battery end connector 60 is greater than, less than or equal to the preset distance, the arrangement path of the pipelines 50 of the battery packs 1 on both sides is that the pipelines 50 of one of the battery packs 1 are arranged in the first path, and the pipelines 50 of the other battery pack 1 are arranged in the second path.

[0105] When the interface direction of the connecting portion 40 of the two battery packs 1 is the driving direction A of the electric vehicle or the height direction of the electric vehicle, and the distance between the connecting portion 40 of the battery pack 1 and the battery end connector 60 is equal to the preset distance, the pipelines 50 of the battery packs 1 on both sides are arranged in the first path or in the second path.

[0106] When the distance between the connecting portion 40 of the battery pack 1 and the battery end connector 60 is less than or greater than the preset distance, regardless of the interface direction of the connecting portion 40, the arrangement paths of the pipelines 50 of the battery packs 1 on both sides are that the pipelines 50 of one battery pack 1 are arranged in the first path, and the pipelines 50 of the other battery pack 1 are arranged in the second path.

[0107] It should be noted that the above descriptions are based on the situation that the battery packs 1 on both sides use the same model of battery packs 1 .

[0108] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A battery pack, characterized in that: The battery pack includes a battery body, a battery terminal connector, and a pipeline. The battery body is provided with a connecting portion on a side perpendicular to the direction of travel of the electric vehicle. The battery terminal connector is provided on the side of the battery body along the direction of travel. Both ends of the pipeline are connected to the connecting portion and the battery terminal connector, respectively. When the distance between the connecting portion and the battery end connector is greater than or equal to a preset distance, the pipeline is arranged in a first path; when the distance between the connecting portion and the battery end connector is less than or equal to a preset distance, the pipeline is arranged in a second path.

2. The battery pack according to claim 1, wherein: The interface direction of the connecting portion is perpendicular to the driving direction of the electric vehicle; Alternatively, the interface direction of the connecting portion is parallel to the traveling direction of the electric vehicle; Alternatively, the interface direction of the connecting portion is parallel to the height direction of the electric vehicle.

3. The battery pack according to claim 1, wherein: In the first path, the pipeline bypasses or passes through functional components in the battery pack; And / or, in the second path, the pipeline is directly connected to the battery terminal connector from the connecting portion without bypassing the functional components in the battery pack.

4. The battery pack according to claim 1, wherein: The preset distance is the distance between the side of the battery body and the center line of the battery body in a direction perpendicular to the driving direction of the electric vehicle.

5. The battery pack according to claim 1, wherein: A accommodating area is provided on a side of the battery body perpendicular to the driving direction, and the connecting portion and at least a portion of the pipeline are arranged in the accommodating area.

6. The battery pack according to claim 5, wherein: The battery body includes an upper battery body and a lower battery body stacked together, the upper battery body is provided with a first accommodation area, the lower battery body is provided with a second accommodation area, and a pipeline is provided between the first accommodation area and the second accommodation area to connect the upper battery body and the lower battery body; Preferably, in the driving direction of the electric vehicle, the size of the upper battery body is smaller than that of the lower battery body, and the second accommodating area is located at the portion of the lower battery body that exceeds the upper battery body.

7. The battery pack according to claim 1, wherein: The battery end connector includes an electrical connector and / or a liquid cooling connector; the pipeline includes a wiring harness connected to the electrical connector and / or a connecting pipe connected to the liquid cooling connector; the connecting part includes a terminal connected to the wiring harness and / or a liquid cooling interface connected to the connecting pipe.

8. The battery pack according to claim 7, wherein: The battery pack further includes a power supply control terminal connected between the wiring terminal and the electrical connector; And / or, the wiring harness includes a high-voltage cable and a low-voltage cable, and the wiring terminals include a high-voltage wiring terminal and a low-voltage wiring terminal; the high-voltage cable and the low-voltage cable are connected to the high-voltage wiring terminal and the low-voltage wiring terminal respectively; Wherein, at least the high-voltage cables are arranged in a first path or in a second path.

9. An electric vehicle, characterized in that: The electric vehicle comprises the battery pack according to any one of claims 1 to 8.

10. The electric vehicle according to claim 9, wherein: The battery packs are installed on both sides of the electric vehicle in a direction perpendicular to the driving direction of the electric vehicle, and the battery end connectors of the battery packs on both sides of the electric vehicle are arranged opposite to each other; The pipelines of one of the battery packs are arranged along a first path, and the pipelines of the other battery pack are arranged along a second path; or, the pipelines of both battery packs are arranged along the first path; or, the pipelines of both battery packs are arranged along the second path.

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