Battery pack for vehicle and vehicle

Abstract

The invention discloses a battery pack for a vehicle and the vehicle. The battery pack comprises a shell, a cooling assembly and a plurality of battery cells, the cooling assembly is arranged in the shell and comprises a top plate integrated with a first flow channel, a bottom plate integrated with a second flow channel and a plurality of vertical plates, and the vertical plates are connected between the top plate and the bottom plate and are spaced from one another to form a plurality of containing spaces; the third flow channels are communicated with the corresponding first flow channels and the corresponding second flow channels to form closed coolant flow channels. And each battery cell is arranged in any accommodating space and is in contact with the top plate, the bottom plate and the adjacent vertical plates. When the battery pack is used, the top plate, the bottom plate and the vertical plates have a heat dissipation effect on the surrounding battery cells. Therefore, each battery cell is provided with a plurality of heat dissipation surfaces, so that the heat dissipation efficiency of the battery cells and the battery pack can be improved.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a battery pack for a vehicle. The present application also relates to a vehicle comprising such a battery pack. Background Art

[0002] New energy vehicles are all equipped with battery packs to provide power for the vehicles. In order to make the battery pack work in an appropriate temperature environment, the battery pack is usually equipped with a cooling assembly. For example, patent document WO2023 / 134483A1 discloses a battery pack. The battery pack includes a box body and a plurality of battery cells arranged in the box body. The box body includes a main body with a receiving cavity, a lining plate and a water cooling plate. The water cooling plate is in the receiving cavity, and the lining plate is between the water cooling plate and the battery cell. Thus, the heat of the battery cell is dissipated by the water cooling plate.

[0003] As the charging and discharging power of the battery pack continues to increase, the heat generated by the battery pack increases accordingly. However, in the prior art, there is usually only one heat exchange surface between the cooling assembly and the battery cell, which results in low heat dissipation efficiency of the battery cell and the battery pack. Summary of the invention

[0004] In view of the above technical problems, the first aspect of the present application proposes a battery pack for a vehicle. The battery pack includes: a housing; a cooling assembly, which is arranged in the housing; and includes a top plate integrated with at least one first flow channel, a bottom plate integrated with at least one second flow channel, and a plurality of vertical plates, each of which is integrated with at least one third flow channel; the plurality of vertical plates are connected between the top plate and the bottom plate and are spaced apart from each other to form a plurality of accommodating spaces; each third flow channel is connected with the corresponding first flow channel and the corresponding second flow channel to form a closed coolant flow channel; and a plurality of battery cells, each of which is arranged in any one of the accommodating spaces and contacts the top plate, the bottom plate and the adjacent vertical plates.

[0005] In one embodiment, a battery cell is disposed in each accommodation space.

[0006] In one embodiment, the first flow channel, the second flow channel and the third flow channel are all linear flow channels.

[0007] In one embodiment, a first interface connected to the first flow channel is provided on the top plate, and a second interface connected to the second flow channel is provided on the bottom plate; the coolant is supplied into the coolant flow channel through one of the first interface and the second interface, and after the coolant flows through the coolant flow channel, it flows out of the coolant flow channel through the other of the first interface and the second interface.

[0008] In one embodiment, the coolant enters the coolant flow channel through the first interface and flows out of the coolant flow channel through the second interface.

[0009] In one embodiment, a plurality of first connectors are arranged on the top plate, each of which is connected to a corresponding first flow channel; a plurality of second connectors are arranged on the bottom plate, each of which is connected to a corresponding second flow channel; a plurality of third connectors are arranged on each vertical plate, each of which is connected to a corresponding third flow channel. Each first connector is plug-connected to a corresponding third connector, and each second connector is plug-connected to a corresponding third connector.

[0010] In one embodiment, the first plug connector and the second plug connector are both one of a socket and a plug; the third plug connector is the other of the socket and the plug. At least one sealing ring is provided on the plug to enable the plug to be sealedly inserted into the corresponding socket.

[0011] In one embodiment, the third connector is configured as a socket. A plurality of receiving slots are configured on each vertical plate, and a socket is fixedly disposed in each receiving slot. A first gap exists between the socket and the vertical side wall of the corresponding receiving slot; a sealant is filled in the first gap to bond the vertical plate to the top plate and the bottom plate.

[0012] In one embodiment, thermal conductive glue is applied between the battery cells and the top plate, the bottom plate, and the adjacent vertical plates.

[0013] In one embodiment, at least one mounting hole is further configured on the top plate and / or the bottom plate, and the mounting hole is offset from the vertical plate.

[0014] In one embodiment, the housing comprises a top wall, a bottom wall opposite to the top wall, at least one pair of side walls connected between the top wall and the bottom wall, and at least one pair of end walls between the top wall and the bottom wall; each end wall is also connected to two side walls. The top plate corresponds to the top wall, and the bottom plate corresponds to the bottom wall; there is a second gap between the top plate and the top wall, and / or there is a third gap between the bottom plate and the bottom wall. Each vertical plate at the end of the housing is arranged to conform to and be connected to the corresponding end wall.

[0015] A second aspect of the present application provides a vehicle, which includes: a chassis, on which a vehicle compartment is mounted; and a battery pack for a vehicle as described above, which is disposed on the chassis.

[0016] In one embodiment, the vehicle further includes a refrigerator disposed away from the battery pack and in communication with the coolant flow passage.

[0017] The beneficial effects of the present application are as follows: A cooling assembly is provided in the battery pack of the present application, and the cooling assembly forms a plurality of accommodation spaces. The battery cells are in the accommodation spaces. When the battery pack is in use, the top plate, bottom plate and vertical plate of the cooling assembly all play a role in heat dissipation for the surrounding battery cells. In this way, each battery cell has a plurality of heat dissipation surfaces, which helps to improve the heat dissipation efficiency of each battery cell, and thus helps to improve the heat dissipation efficiency of the battery pack as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 A vehicle according to one embodiment of the present application is schematically shown.

[0020] Figure 2 A battery pack for a vehicle according to an embodiment of the present application is schematically shown.

[0021] Figure 3 The internal structure of the battery pack is shown schematically.

[0022] Figure 4 The cooling assembly is shown schematically.

[0023] Figure 5 yes Figure 4 Exploded diagram of .

[0024] Figure 6 The bottom plate is shown schematically.

[0025] Figure 7 The top plate is shown schematically.

[0026] Figure 8 The vertical plates are shown schematically.

[0027] Fig. 9 This is a partial enlarged view of the vertical plate.

[0028] Fig.10 The cross-sectional view schematically shows the mating relationship between the plug and the socket.

[0029] Fig.11 The socket is shown schematically.

[0030] Fig.12 The plug is shown schematically.

[0031] Reference numerals list

[0032] 1 Vehicle

[0033] 10 chassis 11 carriage

[0034] 12Refrigerator

[0035] 2Battery packs for vehicles

[0036] 20 Shell

[0037] 202 second gap 203 third gap

[0038] 210 top wall 220 bottom wall

[0039] 230 side wall 240 end wall

[0040] 30 Cooling components

[0041] 301 Accommodation Space

[0042] 310 top plate 311 first flow channel

[0043] 312 first interface 313 first connector

[0044] 314 sealing ring 315 mounting hole

[0045] 320 bottom plate 321 second flow channel

[0046] 322 second interface 323 second connector

[0047] 330 vertical plate 331 third flow channel

[0048] 332 receiving groove 333 third plug-in component

[0049] 334 first gap 335 plug-in portion

[0050] 336 base

[0051] 40 cells

[0052] Z vertical DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0054] In the present application, the term "vertical" refers to a direction generally along the gravity. The term "inner" refers to a direction generally pointing to the inside of the housing; the term "outer" refers to a direction generally pointing to the outside of the housing.

[0055] Figure 1 A vehicle 1 according to an embodiment of the present application is schematically shown. Figure 1 As shown, the vehicle 1 includes a chassis 10, on which a vehicle compartment 11 is mounted. In addition, the vehicle 1 also includes a battery pack 2 for the vehicle (hereinafter referred to as the battery pack 2) disposed on the chassis 10. The battery pack 2 is used to provide power to the vehicle 1.

[0056] Also like Figure 1 As shown, a refrigerator 12 is also provided in the vehicle 1. The refrigerator 12 is arranged away from the battery pack 2 and is connected to a cooling system 30 (described below) in the battery pack 2 to keep the battery pack 2 at an appropriate temperature. The refrigerator 12 is well known to those skilled in the art and will not be described in detail here.

[0057] The following will be based on Figures 2 to 12 The battery pack 2 will be described.

[0058] like Figure 2 and Figure 3 As shown, the battery pack 2 includes a housing 20 , a cooling assembly 30 and a plurality of battery cells 40 .

[0059] The cooling assembly 30 is disposed in the housing 20 and includes a top plate 310, a bottom plate 320, and a plurality of vertical plates 330. The top plate 310 and the bottom plate 320 may be disposed substantially in parallel and spaced apart in the vertical direction Z. The plurality of vertical plates 330 are connected between the top plate 310 and the bottom plate 320 and spaced apart from each other to form a plurality of accommodating spaces 301 (e.g., Figure 4 shown).

[0060] Also like Figure 6 , Figure 7 and Figure 8 As shown, the top plate 310 is integrated with a plurality of first flow channels 311, the bottom plate 320 is integrated with a plurality of second flow channels 321, and each vertical plate 330 is integrated with a plurality of third flow channels 331. When the vertical plate 330 is connected to the top plate 310 and the bottom plate 320, each third flow channel 331 is connected with the corresponding first flow channel 311 and the corresponding second flow channel 321 to form a closed coolant flow channel. The number of the first flow channel 311, the second flow channel 321 and the third flow channel 331 can be determined according to actual conditions and is not limited here.

[0061] Each battery cell 40 is disposed in any one of the accommodation spaces 301 and is in contact with the top plate 310 , the bottom plate 320 , and the adjacent vertical plate 330 .

[0062] When the battery pack 2 according to the present application is used, the coolant flows in the coolant flow channel so that the top plate 310, the bottom plate 320 and the vertical plate 330 all play a heat dissipation role for the surrounding battery cells 40 (such as Figure 3As shown). Overall, each battery cell 40 may have multiple heat dissipation surfaces (e.g., the top surface, bottom surface, and side surface in contact with the vertical plate 330 of the battery cell 40), which helps to improve the heat dissipation efficiency of each battery cell 40, and thus helps to improve the overall heat dissipation efficiency of the battery pack 2. In addition, for each battery cell 40, it has multiple heat dissipation surfaces, so that each battery cell 40 will be cooled more evenly as a whole, thereby reducing the temperature difference between different parts of the battery cell 40, which is particularly beneficial for improving the charging performance and / or discharging performance of the battery cell 40, and also helps to extend the service life of the battery cell 40. In addition, for the battery pack 2 as a whole, the top plate 310, the bottom plate 320 and the multiple vertical plates 330 of the cooling assembly 30 all play a role in heat dissipation, which makes the temperature in the battery pack 2 more uniform and the temperature difference is small, so that the temperature data collected by the temperature control system (not shown in the figure) of the battery pack 2 can more accurately reflect the actual temperature in the battery pack 2, which helps the temperature control system to more accurately control the temperature in the battery pack 2 to the appropriate temperature of the battery cell 40.

[0063] The battery cell 40 is well known to those skilled in the art and will not be described in detail here.

[0064] Alternatively, if Figure 2 As shown, the housing 20 includes a top wall 210, a bottom wall 220, two side walls 230 and two end walls 240. The top wall 210 and the bottom wall 220 are opposite to each other and spaced apart in the vertical direction Z, for example, the top wall 210 and the bottom wall 220 are substantially parallel. The two side walls 230 are connected between the top wall 210 and the bottom wall 220. The two end walls 240 are also connected between the top wall 210 and the bottom wall 220. In addition, each end wall 240 is also connected to the two side walls 230. From the overall point of view, the housing 20 is generally a closed rectangular parallelepiped. Of course, the housing 20 can also be configured into other shapes according to actual conditions, which are not limited here.

[0065] like Figure 3 As shown, the vertical plates 330 of the cooling assembly 30 are substantially parallel to the corresponding end walls 240, and the vertical plates 330 at the ends of the housing 20 are respectively connected to the corresponding end walls 240 (for example, the vertical plates 330 can be connected to the corresponding end walls 240 in a close fit). Thus, the cooling assembly 30 and the housing 20 are connected as a whole, which helps to improve the stability of the cooling assembly 30. In one embodiment, the vertical plates 330 can also be connected to the side walls 230 to further improve the stability of the cooling assembly 30.

[0066] In one embodiment, the top plate 310 can also be connected to the support beam (not shown in the figure) of the top wall 210 of the shell 20, and the bottom plate 320 is connected to the support beam (not shown in the figure) of the bottom wall 320 of the shell 20, which helps to further improve the stability of the cooling assembly 30.

[0067] Optionally, Figure 3 As shown, a battery cell 40 is arranged in each accommodation space 301. In this way, each battery cell 40 has four heat dissipation surfaces (for example, the top surface, the bottom surface, and the two side surfaces in contact with two adjacent vertical plates 330). This helps to further improve the heat dissipation efficiency of the battery cell 40 and the heat dissipation efficiency of the battery pack 2 as a whole, and also helps to make the battery cell 40 as a whole more evenly cooled. It should be understood that, according to actual conditions, two or more battery cells 40 can also be arranged in one accommodation space 301, as long as it helps to dissipate heat evenly and quickly from the battery cell 40.

[0068] Optionally, thermally conductive adhesive is applied between the battery cell 40 and the top plate 310, the bottom plate 320 and the adjacent vertical plate 330. In this way, the thermally conductive adhesive fills the gaps between the battery cell 40 and the top plate 310, the bottom plate 320 and the adjacent vertical plate 330, thereby helping to further improve the heat dissipation efficiency of the battery cell 40. In addition, the thermally conductive adhesive also bonds the battery cell 40 and the cooling assembly 30 into a whole, so that when the vehicle 1 vibrates, the vibration of the battery cell 40 in the accommodating space 301 can be reduced or even avoided, which also helps to improve the service life of the battery pack 2. Thermally conductive adhesive is well known to those skilled in the art and will not be described in detail here.

[0069] Alternatively, if Figure 6 , Figure 7 and Figure 8 As shown, the first flow channel 311, the second flow channel 321 and the third flow channel 331 are all linear flow channels. According to this structure, the coolant can flow quickly in the coolant flow channel, which helps to uniformly dissipate heat from the battery cell 40 as a whole and reduce the temperature difference between various parts of each battery cell 40. Of course, according to actual conditions, any one or all of the first flow channel 311, the second flow channel 321 and the third flow channel 331 can be configured as a tortuous flow channel so that the coolant can fully absorb the heat dissipated by the battery cell 40.

[0070] Alternatively, if Figure 6 and Figure 7 As shown, a first interface 312 is provided on the top plate 310, and the first interface 312 is communicated with the first flow channel 311. A second interface 322 is provided on the bottom plate 320, and the second interface 322 is communicated with the second flow channel 321. It should be understood that for simplicity, Figure 6 In FIG. 3 , only a plurality of second flow channels 321 are schematically shown, and the communication between the second flow channels 321 and the second interface 322 is not shown. Figure 7 The same is true for the first flow channel 311 in FIG.

[0071] The first interface 312 and the second interface 322 are respectively connected to the inlet and outlet (not shown) of the refrigerator 12. In this way, the coolant can be supplied into the coolant flow channel through the first interface 312, and the coolant flows through the coolant flow channel and then flows out of the coolant flow channel through the second interface 322. Thus, the refrigerator 12 cools the coolant and drives the coolant to circulate in the coolant flow channel to continuously dissipate heat for the battery cell 40.

[0072] Optionally, Figures 3 to 5 As shown, the top plate 310 is located above the bottom plate 320. In this way, after the coolant flows into the first flow channel 311 on the top plate 310 through the first interface 312 on the top plate 310, it quickly flows through the third flow channel 331 on the vertical plate 330 along the vertical direction Z under the action of gravity, and then flows into the second flow channel 321 on the bottom plate 320, and finally leaves the cooling assembly 30 through the second interface 322 on the bottom plate 320 (as shown in FIG. Figure 3 ). In the process of coolant flow, the effect of gravity is fully utilized to make the coolant flow faster, which helps to uniformly dissipate heat for the battery cell 40 as a whole. Moreover, the existing refrigerator 12 in the vehicle 1 is sufficient to drive the circulation of the coolant, and there is no need to equip the battery pack 2 (or cooling assembly 30) with additional booster pumps and other components, which helps to reduce the cost of the vehicle 1. It should be noted that the required amount of coolant can be predetermined based on the volume of the coolant flow channel and the volume of the refrigerator 12 to ensure that the coolant always fills the entire coolant flow channel.

[0073] In other embodiments, according to actual conditions, the coolant can flow from the second interface 322 at the bottom into the second flow channel 321, and then overcome the gravity to make the coolant flow upward through the third flow channel 331, enter the first flow channel 311, and finally leave the cooling assembly 30 through the first interface 312 at the top. In this way, it can be ensured that the coolant fills the entire coolant flow channel, thereby improving the heat dissipation efficiency of the battery cell 40. In this case, it may be necessary to equip the battery pack 2 (or cooling assembly 30) with a booster pump. The booster pump is well known to those skilled in the art and will not be described in detail here.

[0074] Alternatively, if Figure 5 and Figure 6As shown, a plurality of second connectors 323 are provided on the bottom plate 320, and these second connectors 323 are in communication with the second flow channel 321. A plurality of third connectors 333 are provided on each vertical plate 330, and these third connectors 333 are in communication with the third flow channel 331 on the same vertical plate 330. Each second connector 323 is plug-connected with the corresponding third connector 333, so that the second flow channel 321 and the third flow channel 331 are in communication with each other. The communication mode of the first flow channel 311 and the third flow channel 331 is similar to this. For example, a plurality of first connectors 313 in communication with the first flow channel 311 are provided on the top plate 310, and these first connectors 313 are plug-connected with the corresponding third connector 333. According to this structure, the vertical plate 330 can be assembled with the top plate 310 and the bottom plate 320 conveniently and quickly through the plug-in connection of the first plug-in component 313, the second plug-in component 323 and the third plug-in component 333, and the coolant flow channel can be conveniently formed. In other embodiments, other fixing methods can be used to more stably connect the vertical plate 330 with the top plate 310 and the bottom plate 320, such as welding.

[0075] For simplicity, only the connection structure between the bottom plate 320 and the vertical plate 330 is described in detail below. The connection structure between the top plate 310 and the vertical plate 330 is the same as this, and will not be described in detail here.

[0076] Alternatively, if Figure 8 and Fig.10 As shown, the second plug connector 323 on the bottom plate 320 is configured as a plug, and the third plug connector 333 on the vertical plate 330 is configured as a socket. Two sealing rings 314 (such as Fig.12 As shown in FIG. 1 , two sealing rings 314 are spaced apart along the axial direction of the plug, so that the plug can be inserted into the corresponding socket in a sealed manner to prevent the coolant from leaking from the connection between the second flow channel 321 and the third flow channel 331 (i.e., the mating point between the plug and the socket). Of course, in other embodiments, only one sealing ring, or three or more sealing rings may be provided on each plug according to actual conditions, which is not limited here.

[0077] Alternatively, if Figure 8 , Fig. 9 and Fig.10 As shown, a plurality of receiving grooves 332 are configured on the vertical plate 330, and a socket is fixedly disposed in each receiving groove 332. In one embodiment, the receiving grooves 332 are configured on the surface of the vertical plate 330 facing the bottom plate 320. Fig.10As shown, there is a first gap 334 between the socket and the vertical side wall of the receiving groove 332. A sealant (not shown in the figure) is filled in the first gap 334 to fix and bond the vertical plate 330 and the bottom plate 320 together. Thus, the seal not only seals the matching gap between the bottom plate 320 and the vertical plate 330 to further prevent coolant leakage, but also the sealant acts as a binder, so that the vertical plate 330 and the bottom plate 320 are more firmly connected.

[0078] In one embodiment, Fig.11 As shown, the socket is an independent component and includes a cylindrical plug-in portion 335 and a base 336 at one end of the plug-in portion 335. The base 336 extends radially outward from the plug-in portion 335. After the socket is set in the receiving groove 332, the base 336 contacts the bottom of the receiving groove 332, and a first gap 334 is formed between the plug-in portion 335 and the vertical side wall of the receiving groove 332. The socket (or the base 336) can be fixedly connected to the receiving groove 332, for example, welded together.

[0079] like Fig.12 As shown, the plug may also be an independent component and fixedly connected to the bottom plate 320, for example, welded together. After the plug is inserted into the socket, the bottom plate 320 will seal the first gap 334, so that the sealant filled in the first gap 334 is in close contact with the bottom plate 320, the vertical plate 330 and the socket, thereby sealing the matching gap between the bottom plate 320 and the vertical plate 330, and helping to improve the connection stability between the bottom plate 320 and the vertical plate 330.

[0080] In one embodiment, a sealant with good thermal conductivity may be used, or even a thermal conductive adhesive may be used directly, which helps to improve the heat dissipation effect of the battery cell 40 and the battery pack 2 .

[0081] Optionally, Figure 5 As shown, a plurality of mounting holes 315 are constructed on the top plate 310 and the bottom plate 320. These mounting holes 315 are all offset from the vertical plate 330. In this way, when the battery pack 2 is installed in the vehicle 1, bolts (not shown in the figure) or other fixings can be passed through the mounting holes 315 to connect with the counterpart (not shown in the figure) on the vehicle 1, so as to stably fix the battery pack 2 to the vehicle 1. In addition, the cables (not shown in the figure) of the battery cells 40 or other components of the battery pack 2 can also extend through the mounting holes 315, which facilitates the wiring of the cables in the battery pack 2.

[0082] In one embodiment, the mounting holes 315 on the top plate 310 are aligned with the mounting holes 315 on the bottom plate 320. In this way, bolts or other fixing members can extend through the entire battery pack 2 along the vertical direction Z, thereby stably mounting the battery pack 2 in the vehicle 1.

[0083] Optionally, Figure 3 As shown, the top plate 310 of the cooling assembly 30 is set to correspond to the top wall 210 of the shell 20, and the bottom plate 320 is set to correspond to the bottom wall 220 of the shell 20. For example, the top plate 310 is substantially parallel to the top wall 210, and the bottom plate 320 is substantially parallel to the bottom wall 220. There is a second gap 202 between the top plate 310 and the top wall 210, and there is a third gap 203 between the bottom plate 320 and the bottom wall 220. In this way, when the top wall 210 and / or the bottom wall 220 of the shell 20 of the battery pack 2 is impacted, due to the existence of the second gap 202 and the third gap 203, the top plate 310 and the bottom plate 320 of the cooling assembly 30 are less impacted (that is, the second gap 202 and the third gap 203 protect the top plate 310 and the bottom plate 320, respectively), which helps to prevent the cooling assembly 30 from being damaged. In addition, when thermal runaway occurs in the battery cell 40 , substances discharged from the battery cell 40 can pass through the second gap 202 and / or the third gap 203 to be quickly discharged out of the battery pack 2 , which helps prevent the battery pack 2 from exploding.

[0084] In one embodiment, the distance between the top plate 310 and the top wall 210 can be between about 5 mm and about 10 mm, so that the second gap 202 can provide sufficient protection for the top plate 310 and allow the material discharged from the battery cell 40 to quickly flow through the second gap 202 when the battery cell 40 has thermal runaway. Of course, the distance between the top plate 310 and the top wall 210 can also be set to other sizes according to actual conditions, which is not limited here. The same is true for the distance between the bottom plate 320 and the bottom wall 220, which will not be described here.

[0085] In one embodiment, a support member (not shown) may be further provided in the second gap 202 and the third gap 203. The support member is supported between the top plate 310 and the top wall 210, and between the bottom plate 320 and the bottom wall 220 to ensure the stability of the top plate 310 and the bottom plate 320.

[0086] In other embodiments, the top plate 310 and the top wall 210 may be closely fitted together, and / or the bottom plate 320 and the bottom wall 220 may be closely fitted together, according to actual conditions.

[0087] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A battery pack for a vehicle, characterized in that: include: Housing (20); A cooling assembly (30), the cooling assembly (30) being arranged in the housing (20) and comprising a top plate (310) integrated with at least one first flow channel (311), a bottom plate (320) integrated with at least one second flow channel (321), and a plurality of vertical plates (330), each of the vertical plates (330) being integrated with at least one third flow channel (331); the plurality of vertical plates (330) being connected between the top plate (310) and the bottom plate (320) and being spaced apart from each other to form a plurality of accommodating spaces (301); each of the third flow channels (331) being connected with a corresponding first flow channel (311) and a corresponding second flow channel (321) to form a closed coolant flow channel; and A plurality of battery cells (40), each of the battery cells (40) is arranged in any one of the accommodating spaces (301) and is in contact with the top plate (310), the bottom plate (320) and the adjacent vertical plate (330).

2. The battery pack according to claim 1, characterized in that: One battery cell (40) is arranged in each of the accommodating spaces (301).

3. The battery pack according to claim 1, characterized in that: The first flow channel (311), the second flow channel (321) and the third flow channel (331) are all linear flow channels.

4. The battery pack according to claim 1, characterized in that: A first interface (312) communicating with the first flow channel (311) is provided on the top plate (310), and a second interface (322) communicating with the second flow channel (321) is provided on the bottom plate (320); Coolant is supplied into the coolant flow channel through one of the first interface (312) and the second interface (322), and after flowing through the coolant flow channel, the coolant flows out of the coolant flow channel through the other of the first interface (312) and the second interface (322).

5. The battery pack according to claim 4, characterized in that: The coolant enters the coolant flow channel through the first interface (312) and flows out of the coolant flow channel through the second interface (322).

6. The battery pack according to claim 1, characterized in that: A plurality of first plug connectors (313) are arranged on the top plate (310), and each of the first plug connectors (313) is communicated with a corresponding first flow channel (311); a plurality of second plug connectors (323) are arranged on the bottom plate (320), and each of the second plug connectors (323) is communicated with a corresponding second flow channel (321); a plurality of third plug connectors (333) are arranged on each of the vertical plates (330), and each of the third plug connectors (333) is communicated with a corresponding third flow channel (331); Each of the first plug connectors (313) is plug-connected with the corresponding third plug connector (333), and each of the second plug connectors (323) is plug-connected with the corresponding third plug connector (333).

7. The battery pack according to claim 6, characterized in that: The first plug connector (313) and the second plug connector (323) are both one of a socket and a plug; the third plug connector (333) is the other of the socket and the plug; At least one sealing ring (314) is arranged on the plug so that the plug can be inserted into the corresponding socket in a sealing manner.

8. The battery pack according to claim 7, characterized in that: The third plug connector (333) is configured as the socket; a plurality of receiving grooves (332) are configured on each of the vertical plates (330), and a socket is fixedly disposed in each of the receiving grooves (332); There is a first gap (334) between the socket and the corresponding vertical side wall of the receiving groove (332); the first gap (334) is filled with a sealant to bond the vertical plate (330) to the top plate (310) and the bottom plate (320).

9. The battery pack according to claim 1, characterized in that: Thermally conductive glue is applied between the battery core (40) and the top plate (310), the bottom plate (320), and the adjacent vertical plate (330).

10. The battery pack according to claim 1, characterized in that: At least one mounting hole (315) is also configured on the top plate (310) and / or the bottom plate (320), and the mounting hole (315) is offset from the vertical plate (330).

11. The battery pack according to claim 1, characterized in that: The housing (20) comprises a top wall (210), a bottom wall (220) opposite to the top wall (210), at least one pair of side walls (230) connected between the top wall (210) and the bottom wall (220), and at least one pair of end walls (240) between the top wall (210) and the bottom wall (220); each of the end walls (240) is also connected to two of the side walls (230); The top plate (310) corresponds to the top wall (210), and the bottom plate (320) corresponds to the bottom wall (220); there is a second gap (202) between the top plate (310) and the top wall (210), and / or there is a third gap (203) between the bottom plate (320) and the bottom wall (220); each of the vertical plates (330) at the end of the shell (20) is configured to conform to the corresponding end wall (240) and be connected to the corresponding end wall (240).

12. A vehicle, characterized in that: include: A chassis (10), on which a carriage (11) is mounted; as well as According to the battery pack (2) for a vehicle according to any one of claims 1 to 11, the battery pack (2) is arranged on the chassis (10).

13. The vehicle according to claim 12, characterized in that The vehicle (1) further comprises a refrigerator (12), wherein the refrigerator (12) is in communication with the coolant flow passage.

Images