Battery pack and electric vehicle comprising same

Abstract

The utility model provides a battery pack and an electric vehicle comprising the same, the battery pack comprises a battery pack body and a protruding chamber, the protruding chamber is arranged on the side edge of the battery pack body facing a vehicle beam of the electric vehicle, the battery pack is provided with a battery end connector, and at least part of the battery end connector is arranged in the protruding chamber; wherein the battery end connector comprises a battery end electric connector and a wire harness thereof and / or a battery end liquid cooling connector and a connecting pipe thereof. The protruding cavity can provide protection for the battery end connector, the battery end connector is prevented from being affected by the outside, and the usable scene of the electric vehicle is increased; on the other hand, the side edge is in electric connection and liquid cooling connection with the electric vehicle, so that a connection path during electric connection and liquid cooling connection of the battery pack and the electric vehicle is more adaptive to a locking path during locking of the battery pack in the electric vehicle, the mounting efficiency is improved, a mounting space does not need to be reserved in the battery pack body, the structural compactness is improved, and the cost is reduced. The connector is prevented from occupying the cell space to influence the battery pack capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, and in particular to a battery pack and an electric vehicle comprising the same. Background Art

[0002] In recent years, new energy vehicles have developed rapidly. Electric vehicles that rely on batteries as driving energy have the advantages of zero emissions and low noise. As the market share and usage frequency of electric vehicles are increasing, electric commercial vehicles among electric vehicles, such as electric heavy trucks and electric light trucks, are also beginning to appear in their respective application scenarios.

[0003] In the prior art, the battery terminal connector on the battery pack is generally directly installed on the battery pack body, which not only affects the compactness of the structure and causes the battery pack to occupy a larger space, but the connector and the wiring harness connected to it also occupy the space of the battery cells inside the battery pack, affecting the battery pack capacity. In addition, the existing battery terminal connector is also not provided with a protective structure, and its function and performance are easily affected by the outside world. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and to provide a battery pack and an electric vehicle comprising the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A battery pack is applied to an electric vehicle, the battery pack comprising a battery pack body and a protruding cavity, the protruding cavity being arranged on the side of the battery pack body facing the beam of the electric vehicle, the battery pack being provided with a battery terminal connector, the battery terminal connector being at least partially arranged in the protruding cavity; wherein the battery terminal connector comprises a battery terminal electrical connector and its wiring harness and / or a battery terminal liquid cooling connector and its connecting tube.

[0007] In the present solution, a protruding cavity is provided on the side of the battery pack body facing the beam of the electric vehicle, and the battery end connector is provided in the protruding cavity. On the one hand, the protruding cavity can be used to protect the battery end connector, and the battery end connector can be prevented from being affected by the outside world, which is beneficial to increase the usable scenarios of the electric vehicle; on the other hand, the battery end connector is located on the side of the battery pack body, so that the battery pack can use the side to be electrically connected and liquid-cooled to the electric vehicle, thereby making the connection path when the battery pack is electrically connected and liquid-cooled to the electric vehicle more compatible with the locking path when the battery pack is locked to the electric vehicle, which is beneficial to improving installation efficiency, and there is no need to reserve installation space in the battery pack body, which is beneficial to improving the compactness of the structure and avoiding the connector occupying the cell space and affecting the battery pack capacity.

[0008] Specifically, the locking path of the battery pack to the electric vehicle is to first move the battery pack vertically and then move the battery pack horizontally. The connection path of the battery pack to the electric vehicle for electrical connection and liquid cooling in this solution is horizontal movement. This connection path is consistent with the last step of the battery pack locking path, so that the electrical connection and liquid cooling connection between the battery pack and the electric vehicle can be completed when the last step of locking the battery pack is completed. If the battery terminal connector is set at the top or bottom of the battery pack body, it is necessary to lock the battery pack first and then move the battery pack vertically to achieve electrical connection and liquid cooling connection.

[0009] Preferably, in the height direction of the battery pack, the size of the protruding cavity is smaller than the size of the battery pack body, so as to form a first avoidance space above or below the protruding cavity, and the first avoidance space is used to accommodate the vehicle beam.

[0010] In this solution, the above-mentioned structural form is adopted to reasonably utilize the free space on the battery pack to place the beam of the electric vehicle, which is beneficial to improving the space utilization rate of the electric vehicle chassis and further beneficial to reducing the size of the electric vehicle.

[0011] Preferably, the battery pack body includes a first battery cell and a second battery cell, and the first battery cell and the second battery cell are stacked along a height direction of the battery pack.

[0012] In this solution, the stacking of two battery cells can, on the one hand, ensure the battery capacity of the battery pack and the endurance of the electric vehicle; on the other hand, compared with the battery cells arranged in the horizontal direction, stacking them in the height direction can reduce the horizontal size of the battery pack. When the battery pack is arranged on the side of the beam of the electric vehicle, it is beneficial to ensure that a larger capacity battery pack can be placed without increasing the size of the electric vehicle.

[0013] Preferably, the first battery cell and the second battery cell both include a first end portion, and the first end portions of the first battery cell and the second battery cell are oriented in the same direction;

[0014] The wiring harness is electrically connected between the first end of the first battery cell, the first end of the second battery cell and the battery end electrical connector;

[0015] And / or, the connecting pipe is connected between at least one of the first ends and the battery terminal liquid cooling connector.

[0016] In this solution, the wiring harnesses of the first battery cell and the second battery cell are connected to the same side of the first battery cell and the second battery cell, and the connecting tube is also connected to the side where the wiring harness is located. On the one hand, only one side of the battery pack needs to reserve accommodation space, which is conducive to ensuring that the size of the battery pack is within an appropriate range. On the other hand, multiple wiring harnesses and connecting tubes are centrally arranged, so that the protruding cavity can be used for local centralized protection, which is conducive to reducing the size of the protruding cavity, and then it is conducive to avoiding interference between the protruding cavity and other functional components of the electric vehicle, and at the same time, it can also make the functional area distribution clear.

[0017] Preferably, the wiring harness extends from the first end toward a first position, and the first position corresponds to a position of the protruding cavity in a height direction of the battery pack;

[0018] And / or, the connecting tube extends from the first end toward a second position, and the second position corresponds to a position of the protruding cavity in a height direction of the battery pack.

[0019] In this solution, the wiring harness of the first battery cell and the wiring harness of the second battery cell are both led out at the first position, so that the lead-out position of the wiring harness corresponds to the position of the protruding cavity in the height direction, so that when the wiring harness is connected to the battery-end electrical connector, it can be ensured that the wiring harness is completely located in the protruding cavity, which is conducive to ensuring the protective effect of the protruding cavity on the wiring harness. When the connecting tube is connected to the battery-end liquid cooling connector, it can be ensured that the connecting tube is completely located in the protruding cavity, which is conducive to ensuring the protective effect of the protruding cavity on the connecting tube.

[0020] Preferably, the battery pack body includes a battery cell accommodating cavity, at least one of the first battery cell and the second battery cell is arranged in the battery cell accommodating cavity, and there is a gap between the first end and the cavity wall of the battery cell accommodating cavity, and the gap is at least used to accommodate the wiring harness and / or the connecting tube.

[0021] In the present solution, the battery cell accommodating cavity can protect the battery cell on the one hand, and on the other hand, the wiring harness and the connecting tube have a part connected to the battery cell and a part connected to the battery end connector. The connecting tube and the wiring harness are arranged in the battery accommodating cavity, so that the part connected to the battery cell can be protected by the battery cell accommodating cavity, preventing the wiring harness and the connecting tube from being exposed to the outside and causing wear or poor connection.

[0022] Preferably, the battery pack also includes a first mounting bracket disposed in the protruding cavity, the first mounting bracket being configured to install the battery-end electrical connector and accommodate the wiring harness, and / or the first mounting bracket being configured to install the battery-end liquid cooling connector and accommodate the connecting tube.

[0023] In this solution, the battery-end electrical connector and / or battery-end liquid cooling connector are installed using the first mounting bracket, which is conducive to ensuring the installation stability of the battery-end electrical connector and / or battery-end liquid cooling connector, and can also prevent the battery-end electrical connector and / or battery-end liquid cooling connector from causing deformation of the battery body due to their weight, thereby ensuring that the battery cells in the battery body are not damaged. At the same time, the first mounting bracket can also accommodate the wiring harness and / or connecting tube, which can further protect the wiring harness and connecting tube on the one hand, and can arrange the wiring harness and / or connecting tube neatly on the other hand, preventing interference between the wiring harnesses, which is conducive to improving safety in use.

[0024] Preferably, the first mounting bracket includes at least a mounting panel and a mounting beam, one end of the mounting beam is connected to the battery pack body, and the other end extends in a direction away from the battery pack body, and the mounting panel is arranged at one end of the mounting beam away from the battery pack body and is used to install the battery end liquid cooling connector and / or the battery end electrical connector.

[0025] In this solution, a mounting panel is set using an end of a mounting beam away from the battery pack body. The mounting beam can ensure the installation stability of the battery-end electrical connector and the battery-end liquid cooling connector. At the same time, the mounting beam allows a certain interval between the mounting panel and the battery pack body, within which the wiring harness and connecting tube can be accommodated.

[0026] Preferably, the first mounting bracket also includes a mounting longitudinal beam and a mounting vertical beam, both ends of the mounting longitudinal beam and the mounting vertical beam are connected to the mounting cross beam to form a frame structure, and the mounting panel is arranged at one end of the frame structure away from the battery pack body.

[0027] In this solution, a frame structure is formed by installing longitudinal beams, installing vertical beams and installing horizontal beams, which is beneficial to further improve the installation stability of the battery-end electrical connector and the battery-end liquid-cooling connector.

[0028] Preferably, the battery pack further comprises a wiring harness fixing plate, wherein the wiring harness fixing plate is arranged in the first mounting bracket, the first mounting bracket is provided with a connector mounting position, and the wiring harness fixing plate corresponds to the position of the connector mounting position.

[0029] In this solution, the above-mentioned structural form is adopted. On the one hand, the position of the wire harness fixing plate corresponds to the connector installation position. When the wire harness is fixed to the wire harness fixing plate, the wire harness fixing plate can guide the wire harness to the connector installation position, which is beneficial to improve the installation efficiency and the connection stability between the wire harness and the battery-end connector. On the other hand, the wire harness fixing plate is conducive to ensuring that the wire harness is arranged according to the designed position, especially when the wire harness is close to the battery-end connector, the wire harness is restricted by the wire harness fixing plate, and the position of the wire harness close to the battery-end connector is specifically prevented from being pulled and shifted due to bumps during the driving of the electric vehicle, which is conducive to ensuring the connection stability between the wire harness and the battery-end connector.

[0030] Preferably, the wiring harness fixing plate is inclined, and one end of the wiring harness fixing plate is connected to the battery pack body, and the other end is connected to the first mounting bracket;

[0031] And / or, the wiring harness fixing plate is provided with a plurality of weight-reducing holes.

[0032] In this solution, the inclined harness fixing plate is convenient to be set to correspond to the position of the connector mounting position on the first mounting bracket. On the other hand, the inclined harness fixing plate can also play a role in strengthening the structural strength, which is beneficial to improving the structural stability of the first mounting bracket, thereby improving the installation stability of the battery end connector;

[0033] Setting a number of weight-reducing holes on the wiring harness fixing plate is conducive to achieving the lightweight requirements of the battery pack.

[0034] Preferably, in the length direction of the battery pack, the size of the protruding cavity is smaller than the size of the battery pack body, so as to form a second avoidance space on the side of the protruding cavity, and the second avoidance space is used to accommodate functional parts of the electric vehicle.

[0035] In the present solution, the above-mentioned structural form is adopted to rationally utilize the space on the battery pack to avoid and set up other functional components in the electric vehicle. On the one hand, it can prevent other functional components from interfering with the battery pack, which is conducive to ensuring the smooth installation of the battery pack; on the other hand, it is conducive to improving the compactness of the layout of various functional parts inside the electric vehicle, improving space utilization, and thereby reducing the space occupied by the electric vehicle.

[0036] An electric vehicle comprises the battery pack as described above.

[0037] In this solution, the battery pack is applied to an electric vehicle, so that both sides of the beam of the electric vehicle can be used to set the battery pack, which not only makes reasonable use of the space on both sides of the beam, but also meets the endurance requirements of the electric vehicle. At the same time, the electric vehicle using the battery pack can avoid the battery terminal connector from being affected by the outside world, and the use scenarios are relatively wide, and the battery pack installation efficiency of the electric vehicle is also higher.

[0038] The positive and progressive effects of the utility model are:

[0039] The utility model provides a protruding cavity on the side of the battery pack body facing the beam of the electric vehicle, and arranges the battery end connector in the protruding cavity. On the one hand, the protruding cavity can be used to protect the battery end connector, which can prevent the battery end connector from being affected by the outside world, which is beneficial to increasing the usable scenarios of the electric vehicle; on the other hand, the battery end connector is located on the side of the battery pack body, so that the battery pack can be electrically connected and liquid-cooled to the electric vehicle using the side, so that the connection path when the battery pack is electrically connected and liquid-cooled to the electric vehicle is more compatible with the locking path when the battery pack is locked to the electric vehicle, which is beneficial to improving installation efficiency. There is no need to reserve installation space in the battery pack body, which is beneficial to improving the compactness of the structure and avoiding the connector occupying the cell space and affecting the battery pack capacity.

[0040] Specifically, the locking path of the battery pack to the electric vehicle is to first move the battery pack vertically and then move the battery pack horizontally. The connection path of the battery pack to the electric vehicle for electrical connection and liquid cooling in this solution is horizontal movement. This connection path is consistent with the last step of the battery pack locking path, so that the electrical connection and liquid cooling connection between the battery pack and the electric vehicle can be completed when the last step of locking the battery pack is completed. If the battery terminal connector is set at the top or bottom of the battery pack body, it is necessary to lock the battery pack first and then move the battery pack vertically to achieve electrical connection and liquid cooling connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic structural diagram of a battery pack according to a preferred embodiment of the present utility model.

[0042] Figure 2 This is another schematic diagram of the structure of the battery pack of a preferred embodiment of the utility model, in which the shell forming the protruding cavity and the shell at the first end are omitted.

[0043] Figure 3 This is an enlarged view of the local structure of the battery pack of the preferred embodiment of the utility model.

[0044] Figure 4 It is a structural schematic diagram of the battery cell accommodating chamber and the first mounting bracket of a preferred embodiment of the utility model.

[0045] Figure 5It is a schematic diagram of the structure of the wiring harness fixing plate and a schematic diagram of the exploded structure of the first mounting bracket of a preferred embodiment of the utility model.

[0046] Figure 6 This is a schematic diagram of the partial structure inside an electric vehicle according to a preferred embodiment of the utility model.

[0047] Description of Reference Numerals

[0048] Battery Pack 100

[0049] Battery pack body 1

[0050] First battery cell 11

[0051] Second battery cell 12

[0052] The first end 13

[0053] Battery cell accommodating chamber 14

[0054] Protruding chamber 2

[0055] Battery terminal connector 3

[0056] Battery terminal electrical connector 31

[0057] Harness 32

[0058] Battery terminal liquid cooling connector 33

[0059] Connecting pipe 34

[0060] First avoidance space 4

[0061] First mounting bracket 5

[0062] Mounting Panel 51

[0063] Installation of cross beam 52

[0064] Installing the longitudinal beam 53

[0065] Installation of vertical beam 54

[0066] Connector installation position 55

[0067] Wire harness fixing plate 6

[0068] Weight reduction hole 61

[0069] Second avoidance space 7

[0070] Car beam 200 DETAILED DESCRIPTION

[0071] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0072] like Figure 1-Figure 3As shown, the present embodiment discloses a battery pack 100, which is applied to electric vehicles. The battery pack 100 includes a battery pack body 1 and a protruding chamber 2. The protruding chamber 2 is arranged on the side of the battery pack body 1 facing the beam 200 of the electric vehicle. The battery pack 100 is provided with a battery terminal connector 3, and the battery terminal connector 3 is at least partially arranged in the protruding chamber 2; wherein the battery terminal connector 3 includes a battery terminal electrical connector 31 and its wiring harness 32 and / or a battery terminal liquid cooling connector 33 and its connecting tube 34.

[0073] By providing a protruding chamber 2 on the side of the battery pack body 1 facing the beam 200 of the electric vehicle, and providing the battery terminal connector 3 in the protruding chamber 2, on the one hand, the protruding chamber 2 can be used to protect the battery terminal connector 3, and the negative impact of rainy, snowy and windy weather on the battery terminal connector 3, which may cause the battery terminal connector 3 to freeze, have poor connections, be damaged, etc., is beneficial to ensuring that the electric vehicle can be used normally in rainy, snowy and windy weather, and is beneficial to increasing the usable scenarios of the electric vehicle; on the other hand, the battery terminal connector 3 is located on the side of the battery pack body 1, so that the battery pack 100 can use the side to be electrically connected and liquid-cooled to the electric vehicle, so that the connection path when the battery pack 100 is electrically connected and liquid-cooled to the electric vehicle is more compatible with the locking path when the battery pack 100 is locked to the electric vehicle, which is beneficial to improving installation efficiency, and there is no need to reserve installation space in the battery pack body 1, which is beneficial to improving the compactness of the structure and avoiding the battery terminal connector 3 occupying the cell space and affecting the battery pack capacity.

[0074] Specifically, the locking path of the battery pack 100 to the electric vehicle is to first move the battery pack 100 vertically and then move the battery pack 100 horizontally. In this embodiment, the connection path of the battery pack 100 to the electric vehicle for electrical connection and liquid cooling is horizontal movement. This connection path is consistent with the last step of the locking path of the battery pack 100, so that the electrical connection and liquid cooling connection between the battery pack 100 and the electric vehicle can be completed when the last step of locking the battery pack 100 is completed. If the battery terminal connector 3 is set at the top or bottom of the battery pack body 1, it is necessary to lock the battery pack 100 first and then move the battery pack 100 vertically to achieve electrical connection and liquid cooling connection.

[0075] In the height direction of the battery pack 100 (i.e. Figure 1 In the X direction in the drawing, the size of the protruding chamber 2 is smaller than the size of the battery pack body 1, so as to form a first avoidance space 4 above or below the protruding chamber 2. The first avoidance space 4 is used to accommodate the beam 200, that is, the free space on the battery pack 100 is reasonably utilized to place the beam 200 of the electric vehicle, which is beneficial to improving the space utilization rate of the chassis of the electric vehicle, and further beneficial to reducing the size of the electric vehicle.

[0076] Specifically, Figure 2As shown, the battery pack body 1 includes a first battery cell 11 and a second battery cell 12, and the first battery cell 11 and the second battery cell 12 are stacked along the height direction of the battery pack 100. The stacking of the two battery cells can ensure the battery capacity of the battery pack 100 and the endurance of the electric vehicle on the one hand, and on the other hand, compared with the arrangement of the battery cells in the horizontal direction, the stacking in the height direction of this embodiment can reduce the size of the battery pack 100 in the horizontal direction. When the battery pack 100 is arranged on the side of the beam 200 of the electric vehicle, it is conducive to placing a battery pack 100 with a larger capacity without increasing the size of the electric vehicle.

[0077] The first battery cell 11 and the second battery cell 12 both include a first end 13, and the first end 13 of the first battery cell 11 and the second battery cell 12 are oriented in the same direction; in the present embodiment, the wiring harness 32 is electrically connected between the first end 13 of the first battery cell 11, the first end 13 of the second battery cell 12 and the battery-end electrical connector 31; the connecting tube 34 is connected between at least one first end 13 and the battery-end liquid cooling connector 33.

[0078] Connecting the harnesses 32 of the first battery cell 11 and the second battery cell 12 to the same side of the first battery cell 11 and the second battery cell 12, and connecting the connecting tube 34 to the side where the harnesses 32 are located, on the one hand, only requires to reserve accommodation space on one side of the battery pack 100, which is conducive to ensuring that the size of the battery pack 100 is within an appropriate range. On the other hand, multiple harnesses 32 and connecting tubes 34 are centrally arranged, so that the protruding chamber 2 can be used for local centralized protection, which is conducive to reducing the size of the protruding chamber 2, and further helps to avoid interference between the protruding chamber 2 and other functional components of the electric vehicle, and also makes the functional area distribution clear.

[0079] In other embodiments, the wire harness 32 and the connecting tube 34 may be connected to both ends of the first battery cell 11 and the second battery cell 12 , respectively, that is, only the wire harness 32 is connected to the first end 13 , or only the connecting tube 34 is connected to the first end 13 .

[0080] Preferably, the wire harness 32 extends from the first end 13 toward the first position, and the first position corresponds to the position of the protruding chamber 2 in the height direction of the battery pack 100. The wire harness 32 of the first battery cell 11 and the wire harness 32 of the second battery cell 12 are both led out at the first position, so that the lead-out position of the wire harness 32 corresponds to the position of the protruding chamber 2 in the height direction, so that when the wire harness 32 is connected to the battery end electrical connector 31, it can be ensured that the wire harness 32 is completely located in the protruding chamber 2, which is conducive to ensuring the protection effect of the protruding chamber 2 on the wire harness 32.

[0081] The connecting tube 34 extends from the first end 13 toward the second position, and the second position corresponds to the position of the protruding chamber 2 in the height direction of the battery pack 100. Similarly, when the connecting tube 34 is connected to the battery terminal liquid cooling connector 33, it can be ensured that the connecting tube 34 is completely located in the protruding chamber 2, which is conducive to ensuring the protection effect of the protruding chamber 2 on the connecting tube 34.

[0082] like Figure 4 As shown, the battery pack body 1 includes a cell accommodating cavity 14, at least one of the first cell 11 and the second cell 12 is disposed in the cell accommodating cavity 14, and a gap is provided between the first end 13 and the cavity wall of the cell accommodating cavity 14, and the gap is used to accommodate at least the wiring harness 32 and / or the connecting tube 34. The cell accommodating cavity 14 can protect the cell on the one hand, and on the other hand, the wiring harness 32 and the connecting tube 34 have a portion connected to the cell and a portion connected to the battery terminal connector 3. The connecting tube 34 and the wiring harness 32 are disposed in the battery accommodating cavity, so that the portion connected to the cell can be protected by the cell accommodating cavity 14, preventing the wiring harness 32 and the connecting tube 34 from being exposed to the outside and causing wear or poor connection.

[0083] In the present embodiment, the battery cell accommodating cavity 14 is combined with the protruding cavity 2, so that the parts of the wiring harness 32 and the connecting tube 34 connected to the battery cell and the parts connected to the battery end connector 3 can be completely protected, so that the wiring harness 32 and the connecting tube 34 are not exposed as a whole, which is beneficial to ensure the connection stability between the battery end connector 3 and the battery pack body 1, and further ensure that the battery pack 100 can stably supply power to the electric vehicle, ensuring the safety and stability of the electric vehicle during driving.

[0084] like Figure 3-Figure 5 As shown, the battery pack 100 also includes a first mounting bracket 5 disposed in the protruding chamber 2, and the first mounting bracket 5 is configured to install the battery-end electrical connector 31 and accommodate the wiring harness 32, and / or, the first mounting bracket 5 is configured to install the battery-end liquid cooling connector 33 and accommodate the connecting tube 34. Using the first mounting bracket 5 to install the battery-end electrical connector 31 and / or the battery-end liquid cooling connector 33 is conducive to ensuring the installation stability of the battery-end electrical connector 31 and / or the battery-end liquid cooling connector 33, and can also prevent the battery-end electrical connector 31 and / or the battery-end liquid cooling connector 33 from causing the battery body to deform due to its weight, thereby ensuring that the battery cells in the battery body are not damaged. At the same time, the first mounting bracket 5 can also accommodate the wiring harness 32 and / or the connecting tube 34, which can further protect the wiring harness 32 and the connecting tube 34 on the one hand, and can make the wiring harness 32 and / or the connecting tube 34 arranged neatly on the other hand, prevent mutual interference between the wiring harnesses 32, and help improve the safety of use.

[0085] Specifically, the first mounting bracket 5 at least includes a mounting panel 51 and a mounting crossbeam 52, one end of the mounting crossbeam 52 is connected to the battery pack body 1, and the other end extends in a direction away from the battery pack body 1. The mounting panel 51 is arranged at the end of the mounting crossbeam 52 away from the battery pack body 1 and is used to install the battery end liquid cooling connector 33 and / or the battery end electrical connector 31. The mounting panel 51 is arranged using the end of the mounting crossbeam 52 away from the battery pack body 1, and the mounting crossbeam 52 can ensure the installation stability of the battery end electrical connector 31 and the battery end liquid cooling connector 33. At the same time, the mounting crossbeam 52 allows a certain interval between the mounting panel 51 and the battery pack body 1, and the wiring harness 32 and the connecting tube 34 can be accommodated in the interval.

[0086] Further, if Figure 5 As shown, the first mounting bracket 5 further includes a mounting longitudinal beam 53 and a mounting vertical beam 54, both ends of which are connected to the mounting cross beam 52 to form a frame structure, and the mounting panel 51 is disposed at one end of the frame structure away from the battery pack body 1. The frame structure is formed by the mounting longitudinal beam 53, the mounting vertical beam 54 and the mounting cross beam 52, which is conducive to further improving the installation stability of the battery end electrical connector 31 and the battery end liquid cooling connector 33.

[0087] like Figure 5 As shown, the battery pack 100 further includes a harness fixing plate 6, which is disposed in the first mounting bracket 5. The first mounting bracket 5 is provided with a connector mounting position 55, and the harness fixing plate 6 corresponds to the position of the connector mounting position 55. On the one hand, the harness fixing plate 6 corresponds to the position of the connector mounting position 55. When the harness 32 is fixed to the harness fixing plate 6, the harness fixing plate 6 can guide the harness 32 to the connector mounting position 55, which is beneficial to improving the installation efficiency and the connection stability between the harness 32 and the battery-end connector 3. On the other hand, the harness fixing plate 6 is beneficial to ensuring that the harness 32 is arranged according to the designed position, especially when the harness 32 is close to the battery-end connector 3, the harness 32 is restricted by the harness fixing plate 6, and the position of the harness 32 close to the battery-end connector 3 is specifically prevented from being pulled and displaced due to bumps during the driving of the electric vehicle, which is beneficial to ensuring the connection stability between the harness 32 and the battery-end connector 3.

[0088] In this embodiment, the wire harness fixing plate 6 is inclined, and one end of the wire harness fixing plate 6 is connected to the battery pack body 1, and the other end is connected to the first mounting bracket 5. The inclined wire harness fixing plate 6 is convenient to be set to correspond to the position of the connector mounting position 55 on the first mounting bracket 5. On the other hand, the inclined wire harness fixing plate 6 can also play a role in strengthening the structural strength, which is conducive to improving the structural stability of the first mounting bracket 5, and then improving the installation stability of the battery terminal connector 3. In other embodiments, the wire harness fixing plate 6 can also extend vertically or horizontally.

[0089] Furthermore, the wiring harness fixing plate 6 is provided with a plurality of weight-reducing holes 61 , which is conducive to achieving the lightweight requirement of the battery pack 100 .

[0090] In the length direction of the battery pack 100 (i.e. Figure 1 In the Y direction in the drawing, the size of the protruding cavity 2 is smaller than the size of the battery pack body 1, so as to form a second avoidance space 7 on the side of the protruding cavity 2. The second avoidance space 7 is used to accommodate functional parts of the electric vehicle, that is, the space on the battery pack 100 is reasonably used to avoid and set other functional components in the electric vehicle. On the one hand, it can prevent other functional components from interfering with the battery pack 100, which is conducive to ensuring the smooth installation of the battery pack 100; on the other hand, it is conducive to improving the compactness of the arrangement of various functional parts inside the electric vehicle, improving space utilization, and thereby reducing the floor space of the electric vehicle.

[0091] This embodiment also discloses an electric vehicle, which includes the battery pack 100 as described above. The battery pack 100 is applied to the electric vehicle, such as Figure 6 As shown, both sides of the beam 200 of the electric vehicle can be used to set the battery pack 100, which not only makes reasonable use of the space on both sides of the beam 200, but also meets the endurance requirements of the electric vehicle. At the same time, the electric vehicle using the above-mentioned battery pack 100 can avoid the battery terminal connector from being affected by the outside world, and the use scenarios are relatively wide, and the battery pack installation of the electric vehicle is also more efficient.

[0092] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A battery pack, applied to an electric vehicle, characterized in that: The battery pack includes a battery pack body and a protruding cavity, wherein the protruding cavity is arranged on the side of the battery pack body facing the beam of the electric vehicle, and the battery pack is provided with a battery terminal connector, and the battery terminal connector is at least partially arranged in the protruding cavity; wherein the battery terminal connector includes a battery terminal electrical connector and its wiring harness and / or a battery terminal liquid cooling connector and its connecting tube.

2. The battery pack according to claim 1, characterized in that: In the height direction of the battery pack, the size of the protruding cavity is smaller than the size of the battery pack body, so as to form a first avoidance space above or below the protruding cavity, and the first avoidance space is used to accommodate the vehicle beam.

3. The battery pack according to claim 1, wherein: The battery pack body includes a first battery cell and a second battery cell, and the first battery cell and the second battery cell are stacked along a height direction of the battery pack.

4. The battery pack according to claim 3, characterized in that: The first battery cell and the second battery cell both include a first end portion, and the first end portions of the first battery cell and the second battery cell are oriented in the same direction; The wiring harness is electrically connected between the first end of the first battery cell, the first end of the second battery cell and the battery end electrical connector; And / or, the connecting pipe is connected between at least one of the first ends and the battery terminal liquid cooling connector.

5. The battery pack according to claim 4, characterized in that: The wiring harness extends from the first end toward a first position, and the first position corresponds to a position of the protruding cavity in a height direction of the battery pack; And / or, the connecting tube extends from the first end toward a second position, and the second position corresponds to a position of the protruding cavity in a height direction of the battery pack.

6. The battery pack according to claim 4, characterized in that: The battery pack body includes a battery cell accommodating cavity, at least one of the first battery cell and the second battery cell is arranged in the battery cell accommodating cavity, and there is a gap between the first end and the cavity wall of the battery cell accommodating cavity, and the gap is at least used to accommodate the wiring harness and / or the connecting tube.

7. The battery pack according to claim 1, characterized in that: The battery pack further includes a first mounting bracket disposed in the protruding cavity, The first mounting bracket is configured to mount the battery-end electrical connector and accommodate the wiring harness, and / or the first mounting bracket is configured to mount the battery-end liquid-cooling connector and accommodate the connecting pipe.

8. The battery pack according to claim 7, characterized in that: The first mounting bracket includes at least a mounting panel and a mounting beam, one end of the mounting beam is connected to the battery pack body, and the other end extends in a direction away from the battery pack body. The mounting panel is arranged at one end of the mounting beam away from the battery pack body and is used to install the battery end liquid cooling connector and / or the battery end electrical connector.

9. The battery pack according to claim 8, characterized in that: The first mounting bracket also includes a mounting longitudinal beam and a mounting vertical beam, both ends of the mounting longitudinal beam and the mounting vertical beam are connected to the mounting cross beam to form a frame structure, and the mounting panel is arranged at one end of the frame structure away from the battery pack body.

10. The battery pack according to claim 7, characterized in that: The battery pack also includes a wiring harness fixing plate, which is arranged in the first mounting bracket. The first mounting bracket is provided with a connector mounting position, and the wiring harness fixing plate corresponds to the position of the connector mounting position.

11. The battery pack according to claim 10, characterized in that: The wiring harness fixing plate is inclined, and one end of the wiring harness fixing plate is connected to the battery pack body, and the other end is connected to the first mounting bracket; And / or, the wiring harness fixing plate is provided with a plurality of weight-reducing holes.

12. The battery pack according to claim 1, wherein: In the length direction of the battery pack, the size of the protruding cavity is smaller than the size of the battery pack body, so as to form a second avoidance space on the side of the protruding cavity, and the second avoidance space is used to accommodate functional parts of the electric vehicle.

13. An electric vehicle, characterized in that: The electric vehicle comprises a battery pack as described in any one of claims 1-12.

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