Battery pack and electric vehicle including the same

Abstract

The invention discloses a battery pack and an electric vehicle comprising the battery pack, the battery pack comprises an unlocking piece, a battery body, a battery end connector and a pipeline, the unlocking piece is arranged on the side edge, perpendicular to the driving direction of the electric vehicle, of the battery body, and the unlocking piece is used for being matched with a locking mechanism arranged on the electric vehicle to unlock the battery pack; the side edge, perpendicular to the driving direction, of the battery body is provided with a connecting part, the battery end connector is arranged on the side edge, in the driving direction, of the battery body, and the battery end connector is used for being connected with a vehicle end connector on an electric vehicle; one end of the pipeline is connected with the battery end connector, and the other end of the pipeline bypasses the unlocking piece and is connected with the connecting part, or is directly connected with the connecting part without bypassing the unlocking piece. According to the battery pack and the electric vehicle comprising the battery pack, the pipeline bypasses or does not bypass the unlocking piece to be connected with the connecting part of the battery pack, and a flexible wiring mode is provided to adapt to the situation that the battery pack faces different directions or the connecting part of the battery pack is at different positions.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy electric vehicles, and in particular 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. In the existing technology, the connection between the pipelines inside the battery pack and the battery cells is relatively complicated or inconvenient, with poor flexibility and difficulty in adapting to the structures of different battery packs. It may cause waste of pipelines or conflict with other components inside the battery pack, and also increase the manufacturing cost of the connection. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the battery pack pipelines are difficult or inconvenient to connect and cannot adapt to the different orientations of battery packs at different positions on the quick-change bracket, and to provide a battery pack and an electric vehicle including the same.

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

[0008] A battery pack, comprising an unlocking member, a battery body, a battery terminal connector and a pipeline,

[0009] The unlocking member is provided on the side of the battery body perpendicular to the direction of travel of the electric vehicle, and the unlocking member is used to cooperate with the locking mechanism provided on the electric vehicle to unlock the battery pack; the side of the battery body perpendicular to the direction of travel is provided with a connecting portion, and the battery terminal connector is provided on the side of the battery body along the direction of travel, and the battery terminal connector is used to connect to the vehicle-end connector on the electric vehicle;

[0010] One end of the pipeline is connected to the battery terminal connector, and the other end of the pipeline is connected to the connecting portion by bypassing the unlocking member, or is directly connected to the connecting portion without bypassing the unlocking member.

[0011] In this solution, the wiring connects to the battery pack's connector, either bypassing or not bypassing the unlocking member. This provides flexible wiring to accommodate different battery pack orientations or connector locations. The wiring avoids conflicting with the unlocking member inside the battery pack, and wasteful wiring is avoided. Positioning the battery-side connector on the side of the battery body along the travel direction, staggered from the unlocking member and connector, facilitates wiring layout and connection to the vehicle's end connector.

[0012] 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.

[0013] In this solution, the battery-end connector, pipelines, and connecting parts separate the pipelines connecting the liquid and the wiring harnesses connecting the electronic components, and connect them separately.

[0014] Preferably, the battery pack further comprises a power supply control terminal, which is provided on a side of the battery body along the driving direction, and is connected between the wiring terminal and the electrical connector.

[0015] In this solution, the power supply control terminal can be used to control and adjust the power delivered by the battery pack (including disconnection, delivery duration, transmission path selection, etc.). The power supply control terminal is located on the side of the battery body along the travel direction, side by side with the electrical connector. This fully utilizes the side space of the battery pack along the travel direction while not occupying the side space perpendicular to the travel direction. This also helps to shorten the wiring between the two (power supply control terminal and electrical connector), or directly plug and connect them.

[0016] Preferably, a accommodating area is provided on a side of the battery body perpendicular to the driving direction, the connecting portion and at least part of the pipeline are provided in the accommodating area; and the unlocking member passes through the accommodating area.

[0017] In this solution, through the above-mentioned accommodation area, the connection part, pipeline and unlocking rod are centrally arranged in this accommodation area, which has a compact structure and reduces the space occupied by the battery body.

[0018] 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.

[0019] 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.

[0020] Preferably, in the driving direction of the electric vehicle, the size of the upper battery is smaller than the size of the lower battery body, the second accommodating area is located at the part of the lower battery body that exceeds the upper battery body, the connecting part and at least part of the pipeline are arranged in the second accommodating area; the unlocking part is arranged in the second accommodating area.

[0021] 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 the connection parts, pipelines and unlocking parts can be centrally arranged, and the structure is compact; and all connections are arranged in the second accommodating area of ​​the lower battery body, so that the pipelines only need to be connected to the lower battery body, and do not need to be connected to the upper and lower battery bodies respectively, which facilitates centralized connection.

[0022] Preferably, the battery pack also includes a locking member, which is used to cooperate with a locking mechanism on the electric vehicle to lock the battery pack; the locking member is arranged above the second accommodating area, and the unlocking member passes through the second accommodating area and extends in a vertical direction to at least partially penetrate the locking member.

[0023] In this solution, the locking member is positioned above the second storage area, fully utilizing the space above the second storage area. When the unlocking member passes through the locking member and rises vertically, it can cooperate with the locking mechanism on the electric vehicle to unlock the battery pack; when the unlocking member descends, the locking member can cooperate with the locking mechanism on the electric vehicle to lock the battery pack.

[0024] 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;

[0025] Wherein, at least the high-voltage cable is connected to the high-voltage terminal by bypassing the unlocking member, or is directly connected to the high-voltage terminal without bypassing the unlocking member.

[0026] In this solution, the high-voltage cable is connected to the high-voltage terminal of the battery pack with or without bypassing the unlocking piece, providing a flexible wiring method to adapt to different orientations of the battery pack or different positions of its high-voltage terminal.

[0027] An electric vehicle comprises the battery pack as described above.

[0028] In this solution, the electric vehicle utilizes the aforementioned battery pack, and the wiring is connected to the battery pack's connector, either bypassing or not bypassing the unlocking member. This provides flexible wiring to accommodate different battery pack orientations or connector locations. The wiring does not conflict with the unlocking member within the battery pack, and waste of wiring length is avoided. The battery-side connector is located on the side of the battery body along the direction of travel, staggered from the unlocking member and connector, facilitating wiring layout and connection to the vehicle-side connector of the electric vehicle.

[0029] 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.

[0030] In this solution, the electric vehicle is equipped with battery packs on both sides to balance the forces on both sides and stabilize the structure. The battery end connectors of the battery packs on both sides are arranged opposite each other to facilitate centralized wiring.

[0031] Preferably, the battery pack in which the pipeline is connected to the connecting part by bypassing the unlocking part is a first battery pack, and the battery pack in which the pipeline is directly connected to the connecting part without bypassing the unlocking part is a second battery pack, and the second battery pack is installed on at least one side of the electric vehicle.

[0032] In this solution, the above-mentioned setting is adopted, and the electric vehicle can adopt battery packs with different arrangements to achieve different pipeline connection methods. That is, when both sides are the second battery packs, the pipelines on both sides are routed in a way that does not bypass the unlocking part; and when the two sides are the first battery pack and the second battery pack respectively, the pipelines on both sides are routed in a way that bypasses and does not bypass the unlocking part respectively. The battery pack does not change the setting position of its connection part due to the different routing methods, so that the position of the connection part is unified, which is convenient for manufacturing.

[0033] The positive and progressive effects of the present invention are that the battery pack and the electric vehicle incorporating the same are connected to the battery pack's connector via a pipeline, either bypassing or not bypassing the unlocking member, providing a flexible wiring method to accommodate different orientations of the battery pack or different positions of its connector. The pipeline does not conflict with the unlocking member within the battery pack, and waste of pipeline length is avoided. The battery-end connector is located on the side of the battery body along the direction of travel, staggered from the unlocking member and connector, facilitating pipeline routing and connection to the vehicle-end connector of the electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the battery pack installed on the quick-change bracket in Example 1 of the present invention.

[0035] Figure 2 Schematic diagram of the structure of the battery pack in Example 1 of the present invention (the front cover of the lower battery body is removed in the figure).

[0036] Figure 3 This is a schematic structural diagram of the battery pack in Example 1 of the present invention after removing the side cover of the lower battery body.

[0037] Figure 4 This is a schematic diagram of the structure of the battery pack after removing the outer shell in Example 1 of the present invention.

[0038] Figure 5 Schematic diagram of the structure of the battery pack installed on the quick-change bracket in Example 2 of the present invention (the front cover of the battery pack is removed in the figure).

[0039] Description of reference numerals:

[0040] Battery Pack 1

[0041] Battery body 10

[0042] Upper battery body 100

[0043] Lower battery body 200

[0044] Step 300

[0045] Unlocking piece 20

[0046] Locking member 30

[0047] Connecting portion 40

[0048] Terminal Block 410

[0049] High voltage terminal block 411

[0050] Low voltage terminal block 412

[0051] Liquid cooling interface 420

[0052] Pipeline 50

[0053] Wiring Harness 510

[0054] High-voltage cable 511

[0055] Low voltage cable 512

[0056] Connecting pipe 520

[0057] Battery terminal connector 60

[0058] Electrical connector 610

[0059] Liquid cooling connector 620

[0060] Power supply control terminal 70

[0061] Accommodation area 80

[0062] First accommodating area 810

[0063] Second accommodating area 820

[0064] Quick-change bracket 2

[0065] Locking mechanism 3

[0066] The direction of travel of the electric vehicle A DETAILED DESCRIPTION

[0067] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0068] Example 1

[0069] like Figure 1-5 As shown, this embodiment provides a battery pack 1 for powering a new energy electric vehicle. During battery swapping, the battery pack 1 is moved from the side of the electric vehicle to under the vehicle's chassis. A battery swapping device, such as a battery swapping cart, then lifts the battery pack 1 and connects it to a locking mechanism 3 on a quick-change bracket 2 on the chassis, securing the battery pack 1 to the vehicle's quick-change bracket 2.

[0070] The battery pack 1 includes an unlocking member 20, a battery body 10, a battery terminal connector 60, and a pipeline 50. The unlocking member 20 is specifically a vertical unlocking rod, which is provided on the side of the battery body 10 perpendicular to the driving direction A of the electric vehicle. The unlocking member 20 is used to cooperate with the locking mechanism 3 provided on the electric vehicle to unlock the battery pack 1. In this embodiment, two unlocking members 20 are provided at intervals on the side of the battery pack 1. Among them, the specific connection method of the battery pack 1 and the quick-change bracket 2 is no longer described in detail in this embodiment. Those skilled in the art can refer to the existing connection methods in the prior art to achieve a detachable connection between the battery pack 1 and the quick-change bracket 2.

[0071] like Figure 2-3 As shown, the side of the battery body 10 perpendicular to the driving direction A is provided with a connection portion 40, which is an interface for connecting the external pipeline 50 with the interior of the battery body 10. The side of the battery body 10 along the driving direction A is provided with a battery end connector 60, which is used to connect to the vehicle end connector (not shown in the figure) on the electric vehicle. Several pipelines 50 are arranged from the side of the battery body 10 along the driving direction A to the side of the battery body 10 perpendicular to the driving direction A. One end of the pipeline 50 is connected to the battery end connector 60 ( Figure 2 The section of the pipeline 50 connected to the battery terminal connector 60 is covered in the housing where the battery terminal connector 60 is located), and the other end of some pipelines 50 bypasses the unlocking member 20 and is connected to the connecting portion 40 on the side away from the battery terminal connector 60, for example, Figure 2 The longer pipeline 50 bypasses the first unlocking member 20 on the left and is connected to the connecting portion 40 on the right side of the battery pack 1; while the other ends of some pipelines 50 do not bypass the unlocking member 20 and are directly connected to the connecting portion 40, for example, Figure 2 The shorter pipeline 50 does not need to bypass the first unlocking member 20, but is directly connected to the connecting portion 40 on the side of the first unlocking member 20 (ie, the connecting portion 40 closer to the battery terminal connector 60).

[0072] The battery pack 1 is connected to the vehicle-end connector of the electric vehicle through the pipeline 50 to provide power energy to the electric vehicle or introduce external coolant to cool the battery pack 1 to enable it to work normally.

[0073] The connection portion 40 on the side of the battery pack 1 may be positioned differently depending on different layout requirements. Therefore, in other embodiments, depending on the layout requirements of the connection portion 40, all pipelines 50 may not bypass the unlocking member 20 to connect to the connection portion 40, or all pipelines 50 may bypass the unlocking member 20 to connect to the connection portion 40. Furthermore, in the battery packs 1 on both sides of the quick-change bracket 2, the pipelines 50 on both sides may or may not bypass the unlocking member 20 to connect to the connection portion 40 of the battery pack 1. Alternatively, the pipelines 50 on one side of the battery pack 1 may bypass the unlocking member 20 to connect to the connection portion 40 of the battery pack 1, while the pipelines 50 on the other side of the battery pack 1 may not bypass the unlocking member 20 to connect to the connection portion 40 of the battery pack 1.

[0074] In the structure of this battery pack 1, the pipeline 50 connects to the connection portion 40 of the battery pack 1, either bypassing or not bypassing the unlocking member 20. This provides a flexible wiring method to accommodate different orientations of the battery pack 1 or different positions of the connection portion 40. The pipeline 50 does not conflict with the position of the unlocking member 20 inside the battery pack, and waste of pipeline 50 length is avoided. The battery-end connector 60 is located on the side of the battery body 10 along the driving direction A, staggered from the layout of the unlocking member 20 and the connection portion 40. This facilitates the routing of the pipeline 50 and also facilitates connection to the vehicle-end connector of the electric vehicle.

[0075] Specifically, if Figure 4 As shown, in this embodiment, the connection portion 40 specifically includes a terminal block 410 for electrical connection and a liquid cooling interface 420 for connecting to external coolant. Accordingly, the battery end 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. 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-end 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 temperature generated during use of the battery pack 1.

[0076] In the structure of the battery pack 1 , the battery terminal connector 60 , the pipeline 50 , and the connecting portion 40 separate the pipeline communicating with the liquid and the wiring harness 510 connecting the electronic components, and connect them separately.

[0077] 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 have the connecting pipe 520 for liquid, and the battery end connector 60 may not have the liquid cooling connector 620 .

[0078] like Figure 3 and Figure 4 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.). Locating the power supply control terminal 70 on the side of the battery body 10 along the travel direction A, side by side with the electrical connector 610, 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. This also helps to shorten the wiring between the two (power supply control terminal 70 and electrical connector 610), or to directly plug and connect them.

[0079] like Figure 2 and Figure 4 As shown, the battery body 10 has storage areas 80 on both sides perpendicular to the travel direction A. The connector 40 and at least a portion of the pipeline 50 are located in the storage areas 80, and the unlocking member 20 is disposed through the storage areas 80. By providing the storage areas 80, the connector 40, pipeline 50, and unlocking lever are centrally arranged in these storage areas 80, resulting in a compact structure and reducing the space occupied by the battery body.

[0080] In this embodiment, the battery body 10 includes a stacked upper battery body 100 and a lower battery body 200. The storage area 80 includes a first storage area 810 provided in the upper battery body 10 and a second storage area 820 provided in the lower battery body 200. A pipeline 50 (including an electrically connected wiring harness 510 and a connecting pipe 520 for communicating with the coolant) 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 upper and lower battery bodies are connected by the wiring harness 510, connecting the upper and lower battery bodies into a battery pack 1 as a whole, providing overall electrical energy; the coolant pipelines of the upper and lower battery bodies are connected by the 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. The unlocking member 20 is provided in the second accommodating area 820 . When the battery pack 1 moves up and down, the unlocking member 20 passes through the second accommodating area 820 and cooperates with the locking mechanism 3 provided on the electric vehicle to unlock the battery pack 1 .

[0081] 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 .

[0082] Among them, Figure 2-4 As shown, in the electric vehicle's travel direction A, the upper battery 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 within the second accommodating area 820; the unlocking member 20 is also disposed within the second accommodating area 820.

[0083] The battery pack 1 makes full use of the excess space formed by the different sizes of the upper and lower battery bodies 200 to form a second accommodating area 820 in which the connecting portion 40, pipeline 50 and unlocking member 20 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 and lower battery bodies 200 respectively, which facilitates centralized connection.

[0084] Among them, Figure 2 As shown, the battery pack 1 also includes a locking member 30, which is disposed on the surface of the step 300, that is, 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 members 20 are installed on the side of the lower battery body 200 perpendicular to the electric vehicle's travel direction A. The unlocking members 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.

[0085] 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 member 20 passes through the locking member 30 and rises vertically, it can cooperate with the locking mechanism 3 on the electric vehicle to unlock the battery pack 1. When the unlocking member 20 descends, the locking member 30 can cooperate with the locking mechanism 3 on the electric vehicle to lock the battery pack 1.

[0086] In other embodiments, due to the different power requirements of electric vehicles, the battery pack 1 may also have 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 member 20 may be positioned below the locking member 30. In other words, the placement of the locking member 30 and the unlocking member 20 is independent of whether the battery pack 1 has a single-layer or multi-layer structure.

[0087] like Figure 4 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 410 and a low-voltage terminal 410 ; the high-voltage cable 511 and the low-voltage cable 512 are connected to the high-voltage terminal 410 and the low-voltage terminal 410 respectively.

[0088] Figure 4 In the illustrated battery pack 1 structure, the two high-voltage cables 511 of the upper battery body 100 and the two high-voltage cables 511 of the lower battery body 200 do not bypass the unlocking member 20 and are directly connected to the high-voltage terminal 410. However, in other embodiments, depending on the layout requirements, the high-voltage cables 511 of the upper and lower battery bodies can be arranged and connected in a dispersed manner. That is, they can bypass the unlocking member 20 and connect to the high-voltage terminal 410, or some high-voltage cables 511 can bypass the unlocking member 20 and connect to the high-voltage terminal 410, while other high-voltage cables 511 do not bypass the unlocking member 20 and connect directly to the high-voltage terminal 410.

[0089] The battery pack 1 connects the high-voltage cable 511 to the high-voltage terminal 410 of the battery pack 1 with or without bypassing the unlocking member 20, providing a flexible wiring method to adapt to different orientations of the battery pack 1 or different positions of its high-voltage terminal 410.

[0090] Example 2

[0091] This embodiment provides an electric vehicle, comprising a battery pack 1 as described in Example 1. The electric vehicle utilizes the aforementioned battery pack 1, and a pipeline 50 is connected to the connection portion 40 of the battery pack 1, either bypassing or not bypassing the unlocking member 20. This provides a flexible wiring arrangement to accommodate different orientations of the battery pack 1 or different positions of the connection portion 40. The pipeline 50 does not conflict with the unlocking member 20 within the battery pack 1, and waste of pipeline 50 length is avoided. The battery-end connector 60 is positioned on the side of the battery body 10 along the travel direction A, staggered from the unlocking member 20 and connection portion 40. This facilitates the routing of the pipeline 50 and facilitates connection to the vehicle-end connector of the electric vehicle.

[0092] like Figure 5 As shown, battery packs 1 are installed on both sides of the electric vehicle along a direction perpendicular to the driving direction A of the electric vehicle, and the battery end connectors 60 of the battery packs 1 on both sides of the electric vehicle are arranged opposite to each other.

[0093] The electric vehicle is equipped with battery packs 1 on both sides to balance the forces on both sides and stabilize the structure. The battery terminal connectors 60 of the battery packs 1 on both sides are arranged opposite to each other to facilitate centralized wiring.

[0094] The battery pack 1 in which the pipeline 50 bypasses the unlocking member 20 and is connected to the connecting portion 40 is the first battery pack (eg Figure 5 The battery pack 1 on the right side, where the pipeline 50 does not bypass the unlocking member 20 and is directly connected to the connecting portion 40, is the second battery pack (e.g. Figure 5 The left battery pack 1 (the location of the connector 40 and the connection path of the pipeline 50 are not shown on the left battery pack 1) is a second battery pack installed on at least one side of the electric vehicle. In other embodiments, as needed, the battery packs 1 on both sides of the electric vehicle can also be second battery packs, that is, both battery packs 1 are directly connected to the connector 40 without bypassing the unlocking member 20.

[0095] With the above-mentioned arrangement, the electric vehicle can adopt battery packs 1 with different arrangements to realize different connection methods of the pipeline 50, that is, when both sides are the second battery packs, the pipelines 50 on both sides are routed in a manner that does not bypass the unlocking member 20; and when both sides are the first battery pack and the second battery pack respectively, the pipelines 50 on both sides are routed in a manner that bypasses and does not bypass the unlocking member 20 respectively. The battery pack 1 does not change the setting position of its connecting part 40 due to the different routing methods, so that the position of the connecting part 40 is unified, which is convenient for manufacturing.

[0096] 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 an unlocking piece, a battery body, a battery terminal connector and a pipeline. The unlocking member is provided on the side of the battery body perpendicular to the direction of travel of the electric vehicle, and the unlocking member is used to cooperate with the locking mechanism provided on the electric vehicle to unlock the battery pack; the side of the battery body perpendicular to the direction of travel is provided with a connecting portion, and the battery terminal connector is provided on the side of the battery body along the direction of travel, and the battery terminal connector is used to connect to the vehicle-end connector on the electric vehicle; One end of the pipeline is connected to the battery terminal connector, and the other end of the pipeline is connected to the connecting portion by bypassing the unlocking member, or is directly connected to the connecting portion without bypassing the unlocking member.

2. 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.

3. The battery pack according to claim 2, wherein: The battery pack further includes a power supply control terminal, which is arranged on a side of the battery body along the driving direction and is connected between the wiring terminal and the electrical connector.

4. The battery pack according to claim 1, wherein: The battery body is provided with a accommodating area on a side perpendicular to the driving direction, the connecting portion and at least part of the pipeline are provided in the accommodating area; the unlocking member is provided through the accommodating area.

5. The battery pack according to claim 4, wherein: 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.

6. The battery pack according to claim 5, wherein: In the driving direction of the electric vehicle, the size of the upper battery is smaller than the size of the lower battery body, the second accommodating area is located at the part of the lower battery body that exceeds the upper battery body, the connecting part and at least part of the pipeline are arranged in the second accommodating area; the unlocking part is arranged through the second accommodating area.

7. The battery pack according to claim 6, wherein: The battery pack also includes a locking member, which is used to cooperate with the locking mechanism on the electric vehicle to lock the battery pack; the locking member is arranged above the second accommodating area, and the unlocking member passes through the second accommodating area and extends in a vertical direction to at least partially pass through the locking member.

8. The battery pack according to claim 2, wherein: 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 cable is connected to the high-voltage terminal by bypassing the unlocking member, or is directly connected to the high-voltage terminal without bypassing the unlocking member.

9. An electric vehicle, characterized in that: The electric vehicle includes 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 along 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.

11. The electric vehicle according to claim 9, wherein: The battery pack in which the pipeline is connected to the connecting part by bypassing the unlocking part is a first battery pack, and the battery pack in which the pipeline is directly connected to the connecting part without bypassing the unlocking part is a second battery pack. The second battery pack is installed on at least one side of the electric vehicle.

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