Battery pack for vehicle and vehicle with same

Abstract

The invention discloses a battery pack for a vehicle and the vehicle with the battery pack, and the battery pack comprises a battery cell which is provided with an electrode facing a first direction and an anti-explosion valve facing a second direction; the isolation device is connected with the battery cell, the isolation device is provided with a first channel penetrating in the second direction, and an inlet of the first channel is right opposite to the anti-explosion valve; the cross beam extends in the third direction, a second channel is formed in the cross beam, and the cross beam is provided with a communicating opening for communicating the outlet of the first channel with the second channel. According to the battery pack designed by the invention, high-temperature charged gas generated during thermal runaway of the battery cell is sequentially discharged into the first channel of the isolation device and the second channel of the cross beam from the second direction, and is finally discharged through the second channel, so that short circuit of the battery pack caused by contact between the high-temperature charged gas and an electrode of the battery cell is avoided; and meanwhile, the size of the battery pack in the height direction is reduced, so that the minimum ground clearance of the vehicle is increased.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and in particular to a battery pack for a vehicle and a vehicle having the same. Background Art

[0002] In the related technology, when the battery cell thermally runs away, high-temperature charged gas will be ejected through the explosion-proof valve. The contact between the high-temperature charged gas and the electrodes of the battery cell will cause the battery pack to short-circuit and cause danger. In some existing technologies, the explosion-proof valve of the battery cell is arranged opposite to the bottom plate of the battery case, and a cavity is formed in the bottom plate of the case. When the battery cell thermally runs away, the high-temperature charged gas will be ejected into the cavity and discharged. However, this design will cause the height of the battery pack to increase, thereby reducing the minimum ground clearance of the vehicle, and further reducing the vehicle's passability. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to propose a battery pack for a vehicle. According to the battery pack designed in accordance with the present invention, the high-temperature charged gas generated when the battery cell thermally runs away is discharged from the second direction to the first channel of the isolation device and the second channel of the crossbeam in sequence, and finally discharged through the second channel, thereby avoiding the high-temperature charged gas from contacting the electrodes of the battery cell and causing a short circuit in the battery pack, while reducing the size of the battery pack in the height direction, thereby increasing the minimum ground clearance of the vehicle.

[0004] The present invention also provides a vehicle having the battery pack.

[0005] The battery pack according to the present invention includes: a battery cell, wherein the battery cell has an electrode facing a first direction and an explosion-proof valve facing a second direction; an isolation device, wherein the isolation device is connected to the battery cell, wherein the isolation device has a first channel penetrating in the second direction, wherein an entrance of the first channel is directly opposite to the explosion-proof valve; a crossbeam, wherein the crossbeam extends in a third direction and a second channel is formed in the crossbeam, wherein a connecting port for connecting an outlet of the first channel with the second channel is provided on the crossbeam; wherein the first direction, the second direction and the third direction are orthogonal to each other.

[0006] According to the battery pack of the present invention, the high-temperature charged gas generated when the battery cell thermally runs away is discharged into the first channel of the isolation device through the explosion-proof valve arranged on the battery cell and facing the second direction, and then the high-temperature charged gas enters the second channel and is discharged through the second channel, thereby avoiding the high-temperature charged gas from contacting the electrodes of the battery cell and causing a short circuit in the battery pack, improving the safety of the battery pack, thereby improving the driving safety of the vehicle, and at the same time reducing the size of the battery pack in the height direction, thereby increasing the distance between the chassis of the vehicle and the ground, thereby increasing the minimum ground clearance of the vehicle, and improving the passability of the vehicle.

[0007] According to some embodiments of the present invention, the isolation device includes: a connecting plate, which extends along a third direction and forms the first channel; a first connecting portion, which is arranged on the connecting plate and surrounds the outer circumference of the first channel; wherein the crossbeam is provided with a second connecting portion, and the first connecting portion cooperates with the second connecting portion to define a sealing ring that connects the first channel and the second channel.

[0008] According to some embodiments of the present invention, the isolation device also includes: a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate respectively extend in the second direction and are spaced apart from the connecting plate in the third direction, a plurality of the battery cells are arranged between the first fixing plate and the second fixing plate, and a plurality of first channels corresponding to the battery cells are arranged on the connecting plate.

[0009] According to some embodiments of the present invention, the first connecting portion includes: a first enclosure, which is arranged on the connecting plate and is arranged around at least a portion of the outer periphery of the first channel outlet; a second enclosure, which is arranged on the first enclosure and protrudes from the first enclosure in the second direction; the second connecting portion includes: a third enclosure, which is arranged on the cross beam and is arranged around at least a portion of the outer periphery of the connecting port, and the third enclosure is docked with and sealed from the second enclosure; a fourth enclosure, which is arranged on the third enclosure and protrudes toward the connecting plate in the second direction, and the fourth enclosure is docked with and sealed from the first enclosure.

[0010] According to some embodiments of the present invention, the first connecting portion includes: a first enclosure, which is arranged on the connecting plate and is arranged around at least a portion of the outer periphery of the first channel outlet; a second enclosure, which is arranged on the first enclosure and protrudes from the first enclosure in the second direction; the second connecting portion includes: a third enclosure, which is arranged on the cross beam and is arranged around at least a portion of the outer periphery of the connecting port; a fourth enclosure, which is arranged on the third enclosure and protrudes toward the connecting plate in the second direction, and the fourth enclosure is connected to the second enclosure in the direction surrounding the connecting port to form the sealing ring.

[0011] According to some embodiments of the present invention, a sealant is provided at the connection between the first connection part and the second connection part.

[0012] According to some embodiments of the present invention, it also includes: a box body, the box body is formed with a receiving groove, the crossbeam is arranged in the receiving groove and divides the receiving groove into a plurality of battery cell installation grooves, a plurality of battery cells are respectively accommodated in the battery cell installation grooves, a third channel connected to the second channel is formed in the box body, and an outer peripheral wall of the box body is formed with a discharge port connected to the third channel.

[0013] According to some embodiments of the present invention, the box body includes: a bottom plate and a side plate, the side plate is arranged on the outer peripheral edge of the bottom plate, the side plate and the bottom plate jointly define the accommodating groove, the third channel is formed in the side plate, and the discharge port is arranged on the side of the side plate away from the accommodating groove.

[0014] According to some embodiments of the present invention, the method further includes: a reinforcing member, wherein the reinforcing member is disposed in the second channel and directly faces the communicating port.

[0015] A vehicle according to another embodiment of the present invention will be briefly described below.

[0016] The vehicle according to the present invention comprises the battery pack described in any one of the above embodiments. Since the vehicle according to the present invention is provided with the battery pack of the above embodiments, the vehicle has high safety and good trafficability.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a top view of a battery pack according to an embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;

[0021] Figure 3 is a schematic structural diagram of an isolation device according to an embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of a battery cell according to an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of connection between a battery cell and an isolation device according to an embodiment of the present invention;

[0024] Figure 6 is a schematic structural diagram of a beam according to an embodiment of the present invention;

[0025] Figure 7 is a top view of the connection between the battery cell, the isolation device and the crossbeam according to an embodiment of the present invention;

[0026] Figure 8 is a schematic structural diagram of the connection between a battery cell, an isolation device and a crossbeam according to an embodiment of the present invention;

[0027] Fig. 9 is a cross-sectional view of the connection between a battery cell, an isolation device and a crossbeam according to an embodiment of the present invention;

[0028] Fig.10 is a cross-sectional view of a battery pack according to an embodiment of the present invention.

[0029] Reference numerals: 1. battery pack;

[0030] 10. Battery cell; 11. Electrode; 12. Explosion-proof valve;

[0031] 20, isolation device; 21, connecting plate; 211, first channel; 212, first enclosure; 213, second enclosure; 22, first fixing plate; 23, second fixing plate; 24, third fixing plate;

[0032] 30. crossbeam; 31. second passage; 32. third enclosure; 33. fourth enclosure;

[0033] 40. Box body; 41. Bottom plate; 42. Side plate; 421. Drainage port; 43. Limiting plate. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the related technology, when the battery cell thermally runs away, high-temperature charged gas will be ejected through the explosion-proof valve. The contact between the high-temperature charged gas and the electrodes of the battery cell will cause the battery pack to short-circuit and cause danger. In some existing technologies, the explosion-proof valve of the battery cell is arranged opposite to the bottom plate of the battery case, and a cavity is formed in the bottom plate of the case. When the battery cell thermally runs away, the high-temperature charged gas will be ejected into the cavity and discharged. However, this design will cause the height of the battery pack to increase, thereby reducing the minimum ground clearance of the vehicle, and further reducing the vehicle's passability.

[0040] Reference below Figure 1-Figure 10 A battery pack 1 for a vehicle according to an embodiment of the present invention is described.

[0041] like Figure 1-Figure 10As shown, a battery pack 1 for a vehicle according to the present invention includes: a battery cell 10, an isolation device 20 and a crossbeam 30, the battery cell 10 has an electrode 11 facing a first direction and an explosion-proof valve 12 facing a second direction, the isolation device 20 is connected to the battery cell 10, the isolation device 20 has a first channel 211 penetrating in the second direction, the inlet of the first channel 211 is directly opposite to the explosion-proof valve 12, the crossbeam 30 extends in the third direction and a second channel 31 is formed in the crossbeam 30, and a connecting port for connecting the outlet of the first channel 211 with the second channel 31 is provided on the crossbeam 30; wherein the first direction, the second direction and the third direction are orthogonal to each other. In some embodiments, the first direction is configured as the height direction of the battery pack 1, the second direction is configured as the length direction of the battery pack 1, and the third direction is configured as the width direction of the battery pack 1. The battery cell 10 is provided with an electrode 11 facing the first direction and an explosion-proof valve 12 facing the second direction. The isolation device 20 is connected to the battery cell 10 and has a first channel 211 penetrating in the second direction. The first channel 211 has an entrance toward the battery cell 10 and an outlet toward the beam 30. The explosion-proof valve 12 and the entrance are arranged opposite to each other. A second channel 31 is formed in the beam 30. The beam 30 is formed with a connecting port connected to the second channel 31. The outlet and the connecting port are arranged opposite to each other, and the first channel 211 is connected to the second channel 31 through the connecting port.

[0042] It can be understood that the electrode 11 of the battery cell 10 faces the first direction and the explosion-proof valve 12 of the battery cell 10 faces the second direction, so as to preliminarily achieve the isolation of the electrode 11 from the high-temperature charged gas generated when the battery cell 10 thermally runs away, and prevent the high-temperature charged gas generated when the battery cell 10 thermally runs away from contacting the electrode 11 and causing the battery pack 1 to short-circuit. In the present application, when the battery cell 10 thermally runs away, the high-temperature charged gas in the battery cell 10 is ejected through the explosion-proof valve 12, and the high-temperature charged gas enters the first channel 211 through the inlet and is discharged to the second channel 31 through the outlet, and is finally discharged through the second channel 31, thereby preventing the high-temperature charged gas from contacting the electrode 11 of the battery cell 10 and causing the battery pack 1 to short-circuit, thereby enhancing the safety of the battery pack 1. At the same time, the high-temperature charged gas is discharged from the length direction of the battery pack 1 through the first channel 211 to the second channel 31, and is finally discharged through the second channel 31 extending in the width direction of the battery pack 1, thereby reducing the size of the battery pack 1 in the height direction, thereby increasing the minimum ground clearance of the vehicle, enhancing the obstacle crossing ability of the vehicle, and thus improving the passability of the vehicle.

[0043] According to the battery pack 1 for vehicles of the present invention, the high-temperature charged gas generated when the battery cell 10 thermally runs away is discharged into the first channel 211 of the isolation device 20 through the explosion-proof valve 12 arranged on the battery cell 10 and facing the second direction, and then the high-temperature charged gas enters the second channel 31 and is discharged through the second channel 31, thereby preventing the high-temperature charged gas from contacting the electrode 11 of the battery cell 10 and causing a short circuit in the battery pack 1, improving the safety of the battery pack 1, thereby improving the driving safety of the vehicle, and at the same time reducing the size of the battery pack 1 in the height direction, thereby increasing the distance between the chassis of the vehicle and the ground, thereby increasing the minimum ground clearance of the vehicle, and improving the passability of the vehicle.

[0044] According to some embodiments of the present invention, Figure 1-Figure 3 , Figure 5 as well as Figure 7-10 As shown, the isolation device 20 includes a connecting plate 21 and a first connecting portion, the connecting plate 21 extends along a third direction and forms a first channel 211, the first channel 211 extends in the third direction, the first connecting portion is arranged on the connecting plate 21, and the first connecting portion surrounds the outer periphery of the first channel 211; wherein the cross beam 30 is provided with a second connecting portion, the second connecting portion is arranged around the connecting hole, the first connecting portion and the second connecting portion cooperate to define a sealing ring that connects the first channel 211 and the second channel 31, it can be understood that the high-temperature charged gas generated by the thermal runaway of the battery cell 10 enters the second channel 31 from the first channel 211 through the sealing ring, the sealing ring has a good sealing effect, and can prevent the high-temperature charged gas from leaking from the connection point between the first connecting portion and the second connecting portion, and at the same time, the first connecting portion and the second connecting portion cooperate to quickly connect the isolation device 20 to the cross beam 30, thereby improving the assembly efficiency of the battery pack 1.

[0045] According to some embodiments of the present invention, Figure 1-Figure 3 , Figure 5 as well as Figure 7-10 As shown, the isolation device 20 also includes a first fixing plate 22 and a second fixing plate 23, which extend in the second direction respectively and are spaced apart from the connecting plate 21 in the third direction, and a plurality of battery cells 10 are arranged between the first fixing plate 22 and the second fixing plate 23, and a plurality of first channels 211 corresponding to the battery cells 10 are arranged on the connecting plate 21. In some embodiments, the electrodes 11 of two adjacent battery cells 10 are connected by an electrical connector, and the first fixing plate 22 and the second fixing plate 23 are respectively arranged at both ends of the connecting plate 21 in the third direction, and the first fixing plate 22 and the second fixing plate 23 both extend in the second direction, and the first fixing plate 22, the second fixing plate 23 and the connecting plate 21 jointly define a battery cell limiting space for accommodating a plurality of battery cells 10, and the battery cell limiting space is suitable for limiting a plurality of battery cells 10, so that a plurality of battery cells 10 can be stably accommodated in the battery cell limiting space.

[0046] In some embodiments, a third fixing plate 24 is connected to at least one side of the connecting plate 21 in the first direction. The third fixing plate 24 extends toward the second direction. The third fixing plate 24 is suitable for abutting against the end surfaces of the multiple battery cells 10 in the first direction, so that the multiple battery cells 10 can be more stably accommodated in the limiting space of the battery cells 10.

[0047] According to some embodiments of the present invention, Figure 3 , Figure 5 and Figure 6 As shown, the first connecting portion includes a first enclosure 212 and a second enclosure 213, the first enclosure 212 is arranged on the connecting plate 21 and is arranged around at least a portion of the periphery of the outlet of the first channel 211, and the second enclosure 213 is arranged on the first enclosure 212 and protrudes from the first enclosure 212 in the second direction; the second connecting portion includes a third enclosure 32 and a fourth enclosure 33, the third enclosure 32 is arranged on the cross beam 30 and is arranged around at least a portion of the periphery of the connecting port, the third enclosure 32 is docked with and sealed from the second enclosure 213, the fourth enclosure 33 is arranged on the third enclosure 32 and protrudes toward the connecting plate 21 in the second direction, and the fourth enclosure 33 is docked with and sealed from the first enclosure 212.

[0048] It can be understood that the end face of the first enclosure 212 abuts against the end face of the fourth enclosure 33, the end face of the second enclosure 213 abuts against the end face of the third enclosure 32, and the two circumferential side faces of the second enclosure 213 respectively abut against the two circumferential side faces of the fourth enclosure 33, so that the first enclosure 212, the second enclosure 213, the third enclosure 32 and the fourth enclosure 33 jointly define a sealing ring, and at the same time enable the isolation device 20 to be quickly connected to the cross beam 30, thereby improving the assembly efficiency of the battery pack 1.

[0049] According to some embodiments of the present invention, Figure 3 and Figure 6 As shown, the first connecting portion includes a first enclosure plate 212 and a second enclosure plate 213, the first enclosure plate 212 is arranged on the connecting plate 21 and is arranged around at least a portion of the periphery of the outlet of the first channel 211, and the second enclosure plate 213 is arranged on the first enclosure plate 212 and protrudes from the first enclosure plate 212 in the second direction; the second connecting portion includes a third enclosure plate 32 and a fourth enclosure plate 33, the third enclosure plate 32 is arranged on the cross beam 30 and is arranged around at least a portion of the periphery of the connecting port, the fourth enclosure plate 33 is arranged on the third enclosure plate 32 and protrudes toward the connecting plate 21 in the second direction, and the fourth enclosure plate 33 is connected to the second enclosure plate 213 in the direction surrounding the connecting port to form a sealing ring.

[0050] In some embodiments, the first enclosure 212 is arranged around the outlet, the second enclosure 213 is arranged around at least a portion of the outer circumferential wall of the first enclosure 212 and protrudes from the first enclosure 212 in the second direction, the third enclosure 32 is arranged around the connecting port, and the fourth enclosure 33 is arranged around at least a portion of the outer circumferential wall of the third enclosure 32 and protrudes from the third enclosure 32 in the second direction. When docked, the end face of the first enclosure 212 and the end face of the third enclosure 32 stop abutting, the end face of the second enclosure 213 is suitable for stopping abutting against the side wall of the crossbeam 30, the end face of the fourth enclosure 33 is suitable for stopping abutting against the side wall of the connecting plate 21, and the two side faces of the second enclosure 213 in the circumferential direction respectively stop abutting against the two side faces of the fourth enclosure 33 in the circumferential direction, so as to make the sealing effect of the sealing ring better and prevent the high-temperature charged gas generated by thermal runaway of the battery cell 10 from leaking from the sealing ring.

[0051] According to some embodiments of the present invention, a sealant is provided at the connection between the first connection part and the second connection part, and the sealant is suitable for further enhancing the sealing effect of the connection between the first connection part and the second connection part, so as to prevent the high-temperature charged gas generated by thermal runaway of the battery cell 10 from leaking from the connection between the first connection part and the second connection part.

[0052] According to some embodiments of the present invention, Figure 1 , Figure 2 and Fig.10 As shown, the battery pack 1 further includes a box body 40, the box body 40 is formed with a receiving groove, the crossbeam 30 is arranged in the receiving groove and divides the receiving groove into a plurality of battery cell installation grooves, and a plurality of battery cells 10 are respectively accommodated in the battery cell installation grooves, a third channel connected to the second channel 31 is formed in the box body 40, and a discharge port 421 connected to the third channel is formed on the outer peripheral wall of the box body 40. It can be understood that the two ends of the crossbeam 30 in the third direction are respectively connected to the two side walls of the box body 40 in the third direction to connect the second channel 31 with the third channel. When the battery cell 10 is thermally runaway, the high-temperature charged gas is ejected from the explosion-proof valve 12, and enters the second channel 31 after passing through the inlet of the first channel 211, the first channel 211, the outlet of the first channel 211 and the connecting port in sequence. The second channel 31 is suitable for guiding the high-temperature charged gas and allowing the high-temperature charged gas to enter the third channel. The high-temperature charged gas flows in the third channel and is finally discharged through the discharge port 421.

[0053] According to some embodiments of the present invention, Figure 1 , Figure 2 and Fig.10As shown, the box body 40 includes a bottom plate 41 and a side plate 42, the side plate 42 is arranged on the outer periphery of the bottom plate 41, the side plate 42 and the bottom plate 41 jointly define a receiving groove, a third channel is formed in the side plate 42, and a discharge port 421 is arranged on the side of the side plate 42 away from the receiving groove. It can be understood that the two ends of the crossbeam 30 in the third direction are respectively connected to the two side plates 42 in the third direction to connect the second channel 31 with the third channel. When the battery cell 10 is thermally runaway, the high-temperature charged gas passes through the first channel 211 and the second channel 31 in sequence and then enters the third channel. The high-temperature charged gas flows in the third channel and is finally discharged through the discharge port 421.

[0054] In some embodiments, the box body 40 also includes a limit plate 43, which is arranged in the battery cell mounting groove and connected to the bottom plate 41. Each battery cell mounting groove is provided with two limit plates 43 spaced apart in the second direction. The two limit plates 43 are respectively stopped against the first fixed plate 22 and the second fixed plate 23, so that multiple battery cells 10 can be more stably fixed in the battery cell mounting groove.

[0055] According to some embodiments of the present invention, the battery pack 1 further includes a reinforcement member, which is disposed in the second channel 31 and directly opposite to the connecting port. In some embodiments, the side wall of the second channel 31 away from the isolation device 20 is configured as a first side wall. It is understandable that when the high-temperature charged gas enters the second channel 31, the impact force on the first side wall is relatively large, and the position of the first side wall directly opposite to the connecting port is the position subject to the greatest impact force. Arranging a reinforcement member at the position of the first side wall directly opposite to the connecting port can prevent the high-temperature charged gas from breaking through the first side wall, thereby improving the safety of the battery pack 1 and extending the service life of the crossbeam 30, thereby extending the service life of the battery pack 1.

[0056] The vehicle according to the present invention will be briefly described below.

[0057] The vehicle according to the present invention is provided with the battery pack 1 of the above embodiment. Since the vehicle according to the present invention is provided with the battery pack 1 described in any one of the above embodiments, the vehicle has high safety and good trafficability.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0059] While embodiments of the present invention have been shown and described above, changes, modifications, substitutions and variations may be made to the embodiments described above.

Claims

1. A battery pack for a vehicle, characterized in that: include: A battery cell, wherein the battery cell has an electrode facing a first direction and an explosion-proof valve facing a second direction; an isolation device, the isolation device being connected to the battery core, the isolation device having a first channel penetrating in a second direction, an entrance of the first channel being directly opposite to the explosion-proof valve; a crossbeam extending in a third direction and having a second channel formed therein, and a connecting port for connecting an outlet of the first channel with the second channel; in The first direction, the second direction and the third direction are orthogonal to each other.

2. The battery pack for a vehicle according to claim 1, characterized in that: The isolation device comprises: a connecting plate extending along a third direction and forming the first channel; A first connecting portion, the first connecting portion is disposed on the connecting plate and surrounds the outer periphery of the first channel; The cross beam is provided with a second connecting portion, and the first connecting portion cooperates with the second connecting portion to define a sealing ring connecting the first channel and the second channel.

3. The battery pack for a vehicle according to claim 2, characterized in that: The isolation device also includes: A first fixing plate and a second fixing plate, wherein the first fixing plate and the second fixing plate extend in the second direction respectively and are spaced apart from the connecting plate in the third direction, a plurality of battery cells are arranged between the first fixing plate and the second fixing plate, and a plurality of first channels corresponding to the battery cells are arranged on the connecting plate.

4. The battery pack for a vehicle according to claim 2, characterized in that: The first connecting portion comprises: A first enclosing plate, the first enclosing plate is disposed around the connecting plate and around at least a portion of the outer periphery of the first channel outlet; a second enclosure plate, the second enclosure plate being disposed on the first enclosure plate and protruding from the first enclosure plate in a second direction; The second connecting portion comprises: a third enclosure plate, the third enclosure plate being disposed around the cross beam and around at least a portion of the outer periphery of the communication opening, the third enclosure plate being butted against and sealed with the second enclosure plate; A fourth enclosure plate is disposed on the third enclosure plate and protrudes toward the connecting plate in the second direction, and the fourth enclosure plate is docked with and sealed to the first enclosure plate.

5. The battery pack for a vehicle according to claim 2, characterized in that: The first connecting portion comprises: A first enclosing plate, the first enclosing plate is disposed around the connecting plate and around at least a portion of the outer periphery of the first channel outlet; a second enclosure plate, the second enclosure plate being disposed on the first enclosure plate and protruding from the first enclosure plate in a second direction; The second connecting portion comprises: A third enclosure plate, the third enclosure plate being disposed around the cross beam and around at least a portion of the outer periphery of the communication opening; A fourth enclosure plate is disposed on the third enclosure plate and protrudes toward the connecting plate in the second direction, and the fourth enclosure plate is connected to the second enclosure plate in a direction surrounding the connecting port to form the sealing ring.

6. The battery pack for a vehicle according to claim 2, characterized in that: A sealant is provided at the connection between the first connection part and the second connection part.

7. The battery pack for a vehicle according to claim 1, characterized in that: Also includes: A box body is formed with a receiving groove, the crossbeam is arranged in the receiving groove and divides the receiving groove into a plurality of battery cell installation grooves, a plurality of battery cells are respectively accommodated in the battery cell installation grooves, a third channel connected with the second channel is formed in the box body, and a discharge port connected with the third channel is formed on the outer peripheral wall of the box body.

8. The battery pack for a vehicle according to claim 7, characterized in that: The box body includes: a bottom plate and a side plate, wherein the side plate is arranged on the outer peripheral edge of the bottom plate, and the side plate and the bottom plate jointly define the receiving groove, the third channel is formed in the side plate, and the discharge port is arranged on the side of the side plate away from the receiving groove.

9. The battery pack for a vehicle according to claim 1, characterized in that: Also includes: A reinforcing member is disposed in the second channel and directly faces the communicating port.

10. A vehicle, characterized in that: A battery pack for a vehicle comprising the battery pack as described in any one of claims 1 to 9.

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