Battery pack, frame assembly, and vehicle

Abstract

The application provides a battery pack, a vehicle frame assembly and a vehicle, and relates to the technical field of vehicles. The battery pack comprises a battery box body, a battery box body is formed with an accommodating cavity, a battery cell group is arranged in the accommodating cavity, a power distribution assembly is arranged at one end of the battery cell group, a battery pack cover is arranged on the battery cell group and connected with the battery box body, a cold plate is arranged between the battery cell group and the battery pack cover, one end of the cold plate close to the power distribution assembly is formed with a protruding portion, and a connecting pipeline for conveying a cooling medium is arranged on one side of the protruding portion close to the power distribution assembly and arranged side by side with the power distribution assembly. The battery pack provided by the application sets the protruding portion at one end of the cold plate close to the power distribution assembly, the area of the protruding portion is used for arranging the connecting pipeline and arranging the connecting pipeline side by side with the power distribution assembly, the further integration of the system is realized in the limited space, and the maintenance convenience of the cooling pipeline is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a battery pack, a frame assembly, and a vehicle. Background Technology

[0002] With the continuous development of new energy vehicles, vehicle technology is also moving towards integration, and the CTC high-integration structure is a product of this development. By directly integrating the battery pack into the vehicle frame, the CTC structure achieves improvements in battery placement space, overall vehicle performance, and cost reduction.

[0003] In existing technology, a battery pack includes a housing, which includes a base plate and side beams surrounding the base plate. The base plate and side beams form a receiving cavity, in which a battery cell module is disposed. The battery cell module generates heat during charging and discharging. The base plate can be a cooling plate, which can contact the bottom surface of the battery cell module to dissipate heat.

[0004] However, the aforementioned battery pack structure struggles to achieve both good cooling performance and efficient space utilization. Utility Model Content

[0005] This application provides a battery pack, a frame assembly, and a vehicle to solve the problem in the prior art of achieving both good cooling performance and space utilization.

[0006] In a first aspect, this application provides a battery pack comprising:

[0007] A battery housing having a receiving cavity;

[0008] The battery cell assembly is disposed within the receiving cavity;

[0009] A power distribution assembly is disposed at one end of the battery cell assembly;

[0010] A battery pack cover is provided on the battery cell assembly and connected to the battery housing.

[0011] A cold plate is disposed between the cell assembly and the battery pack cover, and a protrusion is formed at one end of the cold plate near the power distribution assembly;

[0012] A connecting pipe for conveying cooling medium is provided on the side of the protrusion facing the power distribution assembly and is arranged side by side with the power distribution assembly.

[0013] In some possible implementations, the battery housing includes a first mounting portion and a second mounting portion, the battery cell assembly and the power distribution assembly are located between the first mounting portion and the second mounting portion, and at least one of the first mounting portion and the second mounting portion is provided with a high-voltage interface.

[0014] In some possible implementations, the battery pack further includes a high-voltage connector, one end of which is connected to the power distribution assembly and the other end of which is connected to the high-voltage interface or the battery cell assembly, and the high-voltage connector spans over the cold plate.

[0015] In some possible implementations, the battery housing includes a support plate and two side beams. The support plate is used to support the battery cell assembly and the power distribution assembly. The two side beams, the first mounting portion, and the second mounting portion enclose a receiving space, in which the battery cell assembly and the power distribution assembly are located.

[0016] In some possible implementations, the battery housing includes at least two first limiting beams and at least two second limiting beams, the first limiting beams and the second limiting beams surrounding the receiving cavity, the first limiting beams and the second limiting beams being located within the receiving space.

[0017] In some possible implementations, the battery cell assembly is located between the two second limiting beams, and the power distribution assembly and the connecting conduit are located on one side of one of the second limiting beams opposite to the battery cell assembly.

[0018] In some possible implementations, the battery pack cover includes a cover body and a flange disposed around the periphery of the cover body, the flange being located outside the cover body, the cover body covering the battery cell assembly, and the flange being used for a sealing connection with the side beam.

[0019] In some possible implementations, the first mounting portion is die-cast, and / or the second mounting portion is die-cast.

[0020] In some possible implementations, the central region of the first mounting portion has a first protrusion, and the battery pack cover has a first recess that matches the first protrusion;

[0021] And / or, the second mounting portion has a second protrusion, and the battery pack cover has a second recess that matches the second protrusion.

[0022] In some possible implementations, a sampling component is also included, wherein there are at least two cell groups, and the sampling component is located between two of the cell groups.

[0023] In some possible implementations, the cold plate is provided with an anti-condensation component.

[0024] Secondly, this application provides a vehicle frame assembly, including a vehicle frame and any of the battery packs mentioned in the first aspect above, wherein the vehicle frame is connected to the battery pack.

[0025] In some possible implementations, the frame includes a frame cover and two frame beams, the frame cover connecting the two frame beams, and the frame cover covering the battery pack cover of the battery pack.

[0026] Thirdly, this application provides a vehicle including a vehicle body and any of the frame assemblies described in the second aspect above, which are connected to the vehicle body.

[0027] This application discloses a battery pack, a frame assembly, and a vehicle. The battery pack incorporates a cold plate between the cell assembly and the battery pack cover, allowing for more protective components at the bottom of the battery pack and improving the system's resistance to ball impacts and corrosion. A protrusion is provided at the end of the cold plate near the power distribution assembly. This protrusion area is used to house connecting pipes, which are arranged parallel to the power distribution assembly. This achieves further system integration within a limited space and improves the ease of maintenance for the cooling pipes. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0029] Figure 1 This is a schematic diagram of the battery pack structure provided in an embodiment of this application;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the battery pack cover;

[0031] Figure 3 for Figure 1 A schematic diagram of the structure after removing the battery pack cover;

[0032] Figure 4 for Figure 3 Another structural diagram from another perspective;

[0033] Figure 5 for Figure 1 Schematic diagram of the battery box structure Figure 1 ;

[0034] Figure 6 for Figure 1 Cross-sectional view of the battery pack;

[0035] Figure 7 for Figure 1 Exploded view of the battery pack;

[0036] Figure 8 This is a schematic diagram of the structure of the frame assembly provided in the embodiments of this application;

[0037] Figure 9 for Figure 8 Another structural diagram from another perspective;

[0038] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100-Battery housing; 110-Bearing plate; 120-Side beam; 121-First connecting surface; 130-First limiting beam; 140-First mounting part; 141-Second connecting surface; 150-Second mounting part; 160-Second limiting beam; 170-Intermediate beam;

[0041] 200 - Cell pack; 210 - Cell;

[0042] 300 - Battery pack cover; 310 - Cover body; 320 - Flip edge;

[0043] 400 - Frame; 410 - Frame cover; 420 - Frame beam;

[0044] 500-Power Distribution Components;

[0045] 600 - Cold plate; 610 - Protrusion; 620 - Connecting pipes; 630 - Anti-condensation components

[0046] 700 - High voltage connection bar; 710 - Sampling component. Detailed Implementation

[0047] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0048] In related technologies, a battery pack includes a housing, which comprises a base plate and side beams surrounding the base plate. The base plate and side beams form a receiving cavity, in which a battery cell module is housed. The battery cell module generates heat during charging and discharging. The base plate can be a cooling plate, which can contact the bottom surface of the battery cell module to dissipate heat. However, the aforementioned battery pack structure has poor resistance to ball impacts and struggles to achieve both good cooling performance and efficient space utilization.

[0049] Based on this, this application proposes a battery pack, a frame assembly, and a vehicle. By embedding a cold plate between the cell assembly and the battery pack cover, the battery pack allows for more protective components at the bottom, improving the system's resistance to ball impacts and corrosion. A protrusion is provided at the end of the cold plate near the power distribution assembly. The area of ​​the protrusion is used to house connecting pipes, which are arranged parallel to the power distribution assembly. This achieves further system integration within a limited space and improves the ease of maintenance for the cooling pipes.

[0050] The embodiments of this application are described below with reference to the accompanying drawings.

[0051] Reference Figures 1 to 7 The battery pack provided in this application embodiment includes: a battery box 100, a cell assembly 200, and a battery pack cover 300. The battery box 100 includes a support plate 110, two side beams 120, and at least two first limiting beams 130. The two side beams 120 are respectively connected to the opposite sides of the support plate 110. The first limiting beams 130 are correspondingly disposed on the side of the support plate 110 near the side beams 120. The side beams 120 have a first connecting surface 121, which is used for sealing connection with the vehicle frame beam 420.

[0052] The cell assembly 200 is positioned between two opposing first limiting beams 130. The battery pack cover 300 covers the cell assembly 200 and is sealed to the first connecting surface 121.

[0053] Among them, two side beams 120 are arranged along a first direction, and two opposing first limiting beams 130 are also arranged along the first direction. The first direction is... Figure 3 The direction shown in the middle X and Figure 5 The direction is shown in the middle X. The battery cell assembly 200 includes a plurality of battery cells 210 stacked sequentially along the first direction. The battery cells 210 at both ends of the battery cell assembly 200 in the first direction abut against the first limiting beam 130. The first limiting beam 130 provides constraint for the battery cell assembly 200, ensuring the stability and safety of the battery cell assembly 200.

[0054] The first limiting beam 130 is located on the side of the bearing plate 110 near the side beam 120, so that the distance between the two first limiting beams 130 is larger, thereby increasing the number of cells 210 in the cell group 200 between the two first limiting beams 130, and thus increasing the total capacity of the cell group 200.

[0055] For example, the side beam 120 and the first limiting beam 130 can be welded to the bearing plate 110. There can be two first limiting beams 130, with each first limiting beam 130 corresponding to one of the two side beams 120 to improve the strength of the battery box 100. For instance, the first limiting beam 130 can be integrally formed with the corresponding side beam 120. Further, the side beam 120 can be integrally extruded with the corresponding first limiting beam 130, or the side beam 120 can be integrally die-cast with the corresponding first limiting beam 130.

[0056] The height of the first limiting beam 130 is greater than or equal to the height of the battery cell 210, and the height of the first limiting beam 130 is the height of the first limiting beam 130 at... Figure 3 The height of the orthographic projection in the Z direction shown in the figure, the height of cell 210 is the height of cell 210 in the Z direction. Figure 3 The height of the orthographic projection in the Z direction is shown in the diagram. For example, the height of the first limiting beam 130 can be 50mm-200mm. The height of the side beam 120 is much smaller than the height of the first limiting beam 130. As a result, the battery box 100 can have a low side beam appearance, while the first limiting beam 130 can provide torsional resistance, thereby enabling the battery box 100 to have high modal and high torsional resistance characteristics.

[0057] The side of the first limiting beam 130 facing the cell assembly 200 is perpendicular to the support plate 110. The side of the first limiting beam 130 away from the cell assembly 200 can be parallel to the part of the battery pack cover 300 near the first limiting beam 130, and there is a gap between the first limiting beam 130 and the battery pack cover 300.

[0058] Specifically, the first connecting surface 121 is parallel to the support plate 110 and is used to connect with the bottom surface of the frame beam 420. The first limiting beam 130 is located inside the battery pack cover 300, and there is an angle between the first connecting surface 121 and the first limiting beam 130, which is used to accommodate part of the battery pack cover 300 and part of the frame beam 420.

[0059] For example, the battery pack cover 300 needs to have good insulation. The battery pack cover 300 can be a composite material. The composite material can be made of epoxy resin and glass fiber, or polyurethane and glass fiber.

[0060] The battery pack provided in this application embodiment protects the cell assembly 200 by providing a battery pack cover 300, ensuring the stability and reliability of the cell assembly 200. By providing a first connecting surface 121 on the side beam 120, which simultaneously seals with both the battery pack cover 300 and the frame beam 420, it is unnecessary to provide a connecting surface on the top surface of the first limiting beam 130 for connecting with both the battery pack cover 300 and the frame beam 420. This reduces the thickness of the first limiting beam 130, thereby increasing the distance between the two first limiting beams 130 and increasing the volume of the cell assembly 200 that can be accommodated between the two first limiting beams 130, thus increasing the total capacity of the cell assembly 200.

[0061] It should be noted that the total capacity of the battery pack 200 refers to the amount of electricity stored and released by the battery pack 200 after it is fully charged.

[0062] The battery pack cover 300 is located between the two frame beams 420.

[0063] For example, the edge beam 120 extends along the second direction, the first connecting surface 121 also extends along the second direction, and the first connecting portions are arranged at intervals along the second direction, as well as the second connecting portions are arranged at intervals along the second direction. The second direction is... Figure 3 The direction shown in Y and Figure 5 The direction shown in Y.

[0064] Reference Figure 2 , Figure 3 and Figure 4 In a specific implementation, the battery pack cover 300 includes a cover body 310 and a flange 320 disposed on the periphery of the cover body 310. The flange 320 is located on the outside of the cover body 310. The cover body 310 covers the battery cell assembly 200, and the flange 320 is used for a sealed connection with the first connecting surface 121.

[0065] The third connecting part is located on the flange 320. Thus, by setting the flange 320, the battery pack cover 300 can be connected to the first connecting surface 121.

[0066] Specifically, the periphery of part of the battery pack cover 300 is folded toward the side away from the inside of the battery pack cover 300 to form a folded edge 320.

[0067] Reference Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9In a specific implementation, the battery box 100 also includes a first mounting part 140 and a second mounting part 150, which are located between the two side beams 120 and connected to the two side beams 120. The first mounting part 140 and the second mounting part 150 have a second connecting surface 141, which is used for sealing connection with the battery pack cover 300 and the frame beam 420.

[0068] The first mounting portion 140 and the second mounting portion 150 are spaced apart along the second direction. The two side beams 120 are respectively connected to both sides of the bearing plate 110 in the first direction, and the first mounting portion 140 and the second mounting portion 150 are respectively connected to both sides of the bearing plate 110 in the second direction. The two ends of the first mounting portion 140 and the two ends of the second mounting portion 150 in the first direction are correspondingly connected to the side beams 120.

[0069] By providing a first mounting portion 140 and a second mounting portion 150, both having a second connecting surface 141 for sealing connection with the battery pack cover 300 and the frame cover 410, the first mounting portion 140 and the second mounting portion 150 are connected between two side beams 120, so that the first connecting surface 121 and the second connecting surface 141 form a continuous connecting surface. Thus, the battery pack cover 300 and the battery housing 100 are sealed together via the first connecting surface 121 and the second connecting surface 141, thereby keeping the cell assembly 200 in a closed environment, preventing the cell assembly 200 from being affected by the external environment of the battery pack, and ensuring the stability of the cell assembly 200.

[0070] In a specific implementation, the first mounting part 140 is die-cast, and / or the second mounting part 150 is die-cast.

[0071] Among them, die casting has higher production efficiency and higher dimensional accuracy.

[0072] In a specific implementation, the central region of the first mounting portion 140 has a first protrusion, and the battery pack cover 300 has a first recess that matches the first protrusion; and / or, the second mounting portion 150 has a second protrusion, and the battery pack cover 300 has a second recess that matches the second protrusion.

[0073] The first protrusion is located on the side of the first mounting portion 140 away from the side beam 120, and the second protrusion is located on the side of the second mounting portion 150 away from the side beam 120. Since the central region of the first mounting portion 140 in the first direction needs to accommodate a mounting lug for mounting to the frame 400, as well as some components of the battery pack, the height of the central region of the first mounting portion 140 in the first direction is greater than the height of the sides of the first mounting portion 140; that is, the first protrusion is formed on the first mounting portion 140. The height of the first mounting portion 140 refers to the height of the first mounting portion 140 in the first direction. Figure 5 The height in the direction shown by Z. The second mounting part 150 also has a height along... Figure 5 The protrusion extending in the Z direction (as shown in the image) is used to mount some components of the battery pack. These components include a high-voltage interface, a water inlet, and an explosion-proof valve.

[0074] By providing a first recess and a second recess on the battery pack cover 300, the battery pack cover 300 is sealed to the first mounting part 140 and the second mounting part 150, while also improving the overall integrity of the battery pack.

[0075] Specifically, the flange 320 corresponds to and matches the outline of the side beam 120, the outline of the first mounting part 140, and the outline of the second mounting part 150, and the flange 320 abuts against the side beam 120, the first mounting part 140, and the second mounting part 150.

[0076] For example, the height of the first mounting portion 140 on both sides in the first direction is equivalent to the height of the side beam 120, and the first mounting portion 140 on both sides in the first direction is flush with the side beam 120.

[0077] In some embodiments, the first limiting beam 130 is a solid beam, and the thickness of the first limiting beam 130 is greater than or equal to 5 mm and less than or equal to 15 mm.

[0078] When the first limiting beam 130 and the side beam 120 are integrally extruded, the first limiting beam 130 must be a solid structure due to the limitations of the extrusion molding process. Therefore, the thickness of the first limiting beam 130 in the first direction can be further reduced, thereby further increasing the distance between the two first limiting beams 130.

[0079] Reference Figure 5 , Figure 6 and Figure 8 In a specific implementation, the battery housing 100 also includes two second limiting beams 160, which are connected to the support plate 110. The opposite sides of the second limiting beams 160 are connected to two first limiting beams 130. The two second limiting beams 160 and the two first limiting beams 130 together define a receiving cavity for accommodating the battery cell assembly 200.

[0080] The two second limiting beams 160 are spaced apart along a second direction, and are parallel to each other. The second direction is... Figure 3 The direction shown in Y and Figure 5 The direction is shown in the middle Y. In the second direction, each cell 210 is located between two second limiting beams 160. By setting two second limiting beams 160, the cell 210 is limited in the second direction, while the strength of the battery box 100 is improved.

[0081] For example, the second limiting beam 160 is welded to the bearing plate 110, the second limiting beam 160 extends along the first direction, and the two sides of the second limiting beam 160 in the first direction are connected to the two first limiting beams 130 respectively. For example, the two sides of the second limiting beam 160 in the first direction can be welded to the first limiting beams 130.

[0082] In some embodiments, at least two of the side beams 120, the first limiting beams 130, and the second limiting beams 160 are integrally die-cast.

[0083] This reduces the overall welding process of the battery box 100, lowers the welding defect rate of the battery box, increases the strength of the battery box 100, and also reduces the manufacturing cost of the battery box 100.

[0084] For example, the side beam 120, the first limiting beam 130, and the second limiting beam 160 can be integrally die-cast. The mold opening direction of the die-casting is... Figure 5 The direction indicated by Z in the middle.

[0085] In some examples, the side beam 120, the first limiting beam 130, the second limiting beam 160, and the second mounting part 150 are integrally die-cast.

[0086] In some embodiments, the battery housing 100 further includes at least one intermediate beam 170 disposed between two second limiting beams 160 and connected to the support plate 110. The two sides of the intermediate beam 170 are connected to two first limiting beams 130 respectively. The intermediate beam 170 divides the accommodating cavity into at least two sub-accommodating cavities for accommodating the battery cell assembly 200.

[0087] The second limiting beam 160 and the intermediate beam 170 are spaced apart along the second direction. The intermediate beam 170 is parallel to the second limiting beam 160 and perpendicular to the first limiting beam 130. The two opposite sides of the intermediate beam 170 in the first direction are respectively connected to the two first limiting beams 130.

[0088] For example, the intermediate beam 170 can be welded to the bearing plate 110.

[0089] In some examples, the side beam 120, the first limiting beam 130, the second limiting beam 160, and the intermediate beam 170 can be integrally die-cast.

[0090] In some embodiments, one of the second limiting beams 160 is close to the first mounting portion 140. The second limiting beam 160 is parallel to the first mounting portion 140 and has a certain distance from the first mounting portion 140 in a second direction. This distance is used to accommodate the power distribution assembly 500 of the battery pack. The power distribution assembly 500 can be a power distribution box, which includes electrical components such as relays, fuses, and resistors.

[0091] In some embodiments, the battery pack includes a cold plate 600 located between the cell assembly 200 and the battery pack cover 300. A protrusion 610 is formed at one end of the cold plate 600 near the power distribution assembly 500. A connecting pipe 620 is provided on the side of the protrusion 610 facing the power distribution assembly 500, i.e., the connecting pipe 620 is located below the protrusion 610. Along the X direction, the connecting pipe 620 is arranged side-by-side with the power distribution assembly 500, making full use of the space between the second limiting beam 160 and the first mounting portion 140. Along the Y direction, the protrusion 610 protrudes relative to the cell assembly 200. To enhance the strength of the protrusion 610, a support structure can be provided below the protrusion 610 near the second limiting beam 160. The connecting pipe 620 can be a flexible hose for easy assembly.

[0092] For example, the cold plate 600 can be a direct-cooled plate, a water-cooled plate, or an air-cooled plate. An anti-condensation component 630 is provided above the cold plate. For example, the anti-condensation component 630 can be anti-condensation foam, which mainly supports the inner cover of the composite material to prevent vibration and abnormal noise during driving and to prevent the generation of condensate.

[0093] In some embodiments, the battery pack includes a high-voltage connector 700. A rear-drive high-voltage interface is provided on the second mounting portion 150. One end of a portion of the high-voltage connector 700 is electrically connected to the rear-drive high-voltage interface, and the other end is electrically connected to the power distribution assembly 500. The high-voltage connector 700 spans above the cold plate 600. One end of a portion of the high-voltage connector 700 is electrically connected to the main negative terminal of the cell assembly, and the other end is electrically connected to the power distribution assembly 500. The high-voltage connector 700 spans above the cold plate 600. The main positive terminal of the cell assembly 200 is electrically connected to the power distribution assembly 500 from its side. The high voltage at the rear interface position forms a parallel feature of main negative, rear-drive positive, and rear-drive negative. The main negative terminal is led out from the module and fixed to the fixed support by bolts. The rear-drive positive and rear-drive negative are bolted to the rear-drive high-voltage plug-in.

[0094] In some embodiments, the battery pack includes a sampling component 710, which includes a BIC board located in the middle of the battery pack, i.e., between two cell groups 200, in order to avoid the BIC sampling nickel sheet affecting the welding of the main negative connection piece.

[0095] Reference Figure 1 ,as well as Figure 8 and Figure 9 Based on the above embodiments, this application also provides a vehicle frame assembly, including a vehicle frame 400 and any of the above-mentioned battery packs, wherein the vehicle frame 400 is connected to the battery pack.

[0096] The specific structure of the battery pack has been described in detail in the above embodiments, and will not be repeated here.

[0097] The vehicle frame assembly provided in this application embodiment includes a battery pack cover 300 to protect the cell assembly 200, ensuring its stability and reliability. By providing a first connecting surface 121 on the side beam 120, which simultaneously seals with both the battery pack cover 300 and the frame beam 420, it is unnecessary to provide a connecting surface on the top surface of the first limiting beam 130 for connecting with both the battery pack cover 300 and the frame beam 420. This reduces the thickness of the first limiting beam 130, thereby increasing the distance between the two first limiting beams 130, increasing the number of cells 210 in the cell assembly 200 between the two first limiting beams 130, and increasing the total capacity of the cell assembly 200.

[0098] Reference Figure 1 , Figure 4 , Figure 8 and Figure 9 In some embodiments, the frame 400 includes a frame cover 410 and two frame beams 420. The frame cover 410 connects the two frame beams 420 and covers the battery pack cover 300 of the battery pack. The frame beams 420 are correspondingly and sealingly connected to the first connecting surface 121 of the battery pack, and the frame cover 410 is correspondingly and sealingly connected to the second connecting surface 141 of the battery pack.

[0099] The two frame beams 420 are arranged opposite each other, and the frame cover 410 is located between the two frame beams 420. The side beam 120 is located below the frame beams 420, and the bottom surface of the frame beams 420 is sealed to the first connecting surface 121. The frame cover 410 and the frame beams 420 protect the battery pack, improving the stability and reliability of the battery pack.

[0100] In some examples, the frame cover 410 is made of metal to improve the torsional stiffness of the frame assembly and also to help isolate the battery pack from heat damage. Heat damage isolation refers to reducing the impact of heat radiation on the battery pack, thereby protecting it from high-temperature damage.

[0101] The frame cover 410 can be welded to the frame beam 420. For example, the frame cover 410 can be made of steel. For instance, the frame cover 410 can be made of carbon steel.

[0102] In some examples, there is a gap between the frame cover 410 and the battery pack cover 300 to reduce the impact and vibration transmitted from the frame cover 410 to the battery pack cover 300 when the frame cover 410 is subjected to external impact, thus providing some protection for the battery pack.

[0103] Based on the above embodiments, this application also provides a vehicle, including a vehicle body and a frame assembly connected to the vehicle body.

[0104] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0105] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this application according to the specific circumstances.

[0106] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0107] Unless otherwise stated, the term "multiple" means two or more.

[0108] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the scope of this application is limited only by the appended claims.

Claims

1. A battery pack, characterized by, include: A battery housing (100) having a receiving cavity; A battery cell assembly (200) is disposed within the receiving cavity; A power distribution assembly (500) is disposed at one end of the battery cell assembly (200); A battery pack cover (300) is placed over the battery cell assembly (200) and connected to the battery housing (100); A cold plate (600) is disposed between the cell assembly (200) and the battery pack cover (300), and a protrusion (610) is formed on the end of the cold plate (600) near the power distribution assembly (500); A connecting pipe (620) for conveying cooling medium is provided on the side of the protrusion (610) facing the power distribution assembly (500) and arranged side by side with the power distribution assembly (500).

2. The battery pack of claim 1, wherein, The battery housing (100) includes a first mounting part (140) and a second mounting part (150), the battery cell assembly (200) and the power distribution assembly (500) are located between the first mounting part (140) and the second mounting part (150), and at least one of the first mounting part (140) and the second mounting part (150) is provided with a high-voltage interface.

3. The battery pack of claim 2, wherein, The battery pack also includes a high-voltage connector (700), one end of which is connected to the power distribution assembly (500), and the other end is connected to the high-voltage interface or the battery cell assembly (200), and the high-voltage connector (700) is positioned above the cold plate (600).

4. The battery pack of claim 2, wherein, The battery housing (100) includes a support plate (110) and two side beams (120). The support plate (110) is used to support the battery cell assembly (200) and the power distribution assembly (500). The two side beams (120), the first mounting part (140) and the second mounting part (150) enclose a receiving space, and the battery cell assembly (200) and the power distribution assembly (500) are located within the receiving space.

5. The battery pack of claim 4, wherein, The battery housing (100) includes at least two first limiting beams (130) and at least two second limiting beams (160), the first limiting beams (130) and the second limiting beams (160) forming the receiving cavity, and the first limiting beams (130) and the second limiting beams (160) are located within the receiving space.

6. The battery pack of claim 5, wherein, The battery cell assembly (200) is located between two second limiting beams (160), and the power distribution assembly (500) and the connecting pipe (620) are located on one side of one of the second limiting beams (160) away from the battery cell assembly (200).

7. The battery pack of claim 4, wherein, The battery pack cover (300) includes a cover body (310) and a flange (320) disposed on the periphery of the cover body (310). The flange (320) is located on the outside of the cover body (310). The cover body (310) covers the battery cell assembly (200). The flange (320) is used for a sealed connection with the side beam (120).

8. The battery pack of claim 2, wherein, The first mounting part (140) is die-cast, and / or the second mounting part (150) is die-cast.

9. The battery pack of claim 2, wherein, The first mounting portion (140) has a first protrusion in the middle region, and the battery pack cover (300) has a first recess that matches the first protrusion; And / or, the second mounting portion (150) has a second protrusion, and the battery pack cover (300) has a second recess that matches the second protrusion.

10. The battery pack of claim 1, wherein, It also includes a sampling component (710), wherein there are at least two battery cells (200), and the sampling component (710) is located between two of the battery cells (200).

11. The battery pack of any one of claims 1-10, wherein, The cold plate (600) is provided with an anti-condensation component (630).

12. A frame assembly characterized by, It includes a frame (400) and a battery pack according to any one of claims 1-11, wherein the frame (400) is connected to the battery pack.

13. The frame assembly of claim 12, wherein, The frame (400) includes a frame cover (410) and two frame beams (420), the frame cover (410) connects the two frame beams (420), and the frame cover (410) covers the battery pack cover (300) of the battery pack.

14. A vehicle characterized by comprising: Includes a vehicle body and a frame assembly as described in claim 12 or 13 connected to the vehicle body.

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