Hanging structure, battery pack box body, battery pack and vehicle

Abstract

The utility model belongs to the technical field of vehicles, and discloses a mounting structure, a battery pack box body, a battery pack and a vehicle. The mounting structure comprises a mounting plate, a first mounting hole extending in the thickness direction is formed in the mounting plate, and a mounting binding face is formed on the top of the mounting plate in the thickness direction; the first mounting hole is located in the area where the mounting binding face is located and penetrates through the mounting binding face, the mounting binding face is used for being attached to the outer bottom wall of the mounting beam, and the first mounting hole is used for being connected with the mounting beam; a connecting part is arranged on the periphery of the mounting plate and / or the bottom of the mounting plate in the thickness direction, and the connecting part is used for being connected with the top of a battery pack box body. The mounting structure is not only suitable for a battery pack box body which is mounted in an upright manner, but also suitable for a battery pack box body which is mounted in an inverted manner; and secondly, the mounting structure is small in size and simple in structure, and does not occupy the internal space of the battery pack box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially relates to hanging structure, battery package box body, battery package and vehicle. BACKGROUND

[0002] With the continuous development and popularization of new energy vehicles, battery package is widely concerned and applied. Usually, the battery package is composed of a battery compartment, battery cells, a box cover, a liquid cooling structure and a mounting structure, etc. The box cover is arranged on the battery compartment and connected with the battery compartment around, so that a closed accommodation space is formed between the box cover and the battery compartment, and the battery cells are encapsulated in the accommodation space to form a battery package. The liquid cooling structure is integrated on the battery package box body formed by the box cover and the battery compartment, which can cool the battery cells. The mounting structure is used to mount the battery package box body containing the battery cells on the vehicle. Therefore, the mounting structure is one of the important components of the battery package.

[0003] A mounting structure in the prior art is integrally formed with a mounting part on a cross beam in the battery package box body. The mounting part partially protrudes from the box cover along the height direction of the battery package box body, which can realize mounting the battery package on the frame. However, a sealing structure is needed to seal the gap between the mounting part and the box cover, which is complex in structure and occupies the internal space of the battery package. SUMMARY

[0004] The utility model aims at providing mounting structure, battery package box body, battery package and vehicle to solve the above problems existing in the prior art mounting structure.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] The mounting structure comprises:

[0007] The mounting plate is formed with a first mounting hole extending along the thickness direction, and the top of the mounting plate along the thickness direction is formed with a mounting fitting surface. The first mounting hole is located in the area of the mounting fitting surface and penetrates through the mounting fitting surface. The mounting fitting surface is used to fit with the outer bottom wall of the mounting beam, and the first mounting hole is used to connect with the mounting beam.

[0008] The outer periphery of the mounting plate and / or the bottom of the mounting plate along the thickness direction is provided with a connecting part, which is used to connect with the top of the battery package box body.

[0009] As a preferred scheme of the above mounting structure, the mounting plate comprises a mounting plate body and a mounting reinforcing part protruding on the top of the mounting plate body along the thickness direction of the mounting plate body.

[0010] The top of the mounting reinforcing part is provided with the mounting fitting surface. The outer periphery of the mounting plate body and / or the bottom of the mounting plate body is provided with the connecting part.

[0011] The first mounting hole is formed in the mounting reinforcing part; or, the first mounting hole is formed in the mounting reinforcing part and the mounting plate body.

[0012] As a preferred solution of the mounting structure, the number of the mounting reinforcing parts is multiple, and a wire passing channel is formed between any two adjacent mounting reinforcing parts.

[0013] As a preferred solution of the mounting structure, the mounting reinforcing part is provided with an assembly hole extending in the thickness direction; or, the mounting reinforcing part is provided with a first sub-assembly hole extending in the thickness direction, and the mounting plate body is provided with a second sub-assembly hole extending in the thickness direction, and the first sub-assembly hole and the second sub-assembly hole form a through assembly hole.

[0014] The mounting plate further comprises a connecting sleeve fixedly arranged in the assembly hole, and the connecting sleeve is formed with the first mounting hole.

[0015] As a preferred solution of the mounting structure, the mounting plate body and the mounting reinforcing part are integrally formed on the outer periphery of the connecting sleeve.

[0016] As a preferred solution of the mounting structure, the thickness of the mounting plate body ranges from 0.8mm to 1.5mm; and / or,

[0017] The thickness of the mounting reinforcing part ranges from 4 times to 8 times the diameter of the first mounting hole.

[0018] As a preferred solution of the mounting structure, the mounting plate body and the mounting reinforcing part of the mounting plate are made of a brazable metal material.

[0019] As a preferred solution of the mounting structure, the first mounting hole is a threaded hole; or, the first mounting hole is a press-in hole.

[0020] The battery pack box body comprises the above mounting structure, and the connecting part is fixedly connected to the top of the battery pack box body.

[0021] As a preferred solution of the battery pack box body, the battery pack box body comprises a first battery compartment and a first battery cover connected to the opening of the first battery compartment; along the height direction of the battery pack box body, the connecting part is fixedly connected to the top of the first battery cover, and the opening of the first battery compartment faces the connecting part.

[0022] As a preferred scheme of the battery pack box body, the battery pack box body comprises a second battery compartment and a second battery cover connected to an opening of the second battery compartment; the connecting portion is fixedly connected to an outer top wall of the second battery compartment away from the opening along the height direction of the battery pack box body, and the opening of the second battery compartment faces away from the connecting portion.

[0023] As a preferred scheme of the battery pack box body, the battery pack box body further comprises a second liquid cooling plate, and the second liquid cooling plate is integrated to the outer top wall of the second battery compartment away from the opening along the height direction of the battery pack box body, and the connecting portion is fixedly connected to a top portion of the second liquid cooling plate.

[0024] As a preferred scheme of the battery pack box body, the connecting portion is a bottom surface of the mounting plate, and the bottom surface of the mounting plate is completely attached to and fixedly connected to a top surface of the second liquid cooling plate.

[0025] The battery pack comprises a battery cell and the battery pack box body.

[0026] The vehicle comprises a mounting beam and the battery pack.

[0027] The battery pack box body has the following beneficial effects:

[0028] The utility model provides a mounting structure, battery pack box body, battery pack and vehicle, wherein, the mounting structure includes mounting plate, and the mounting plate forms first installation hole along the thickness direction extension, and the mounting plate forms installation attachment surface along the thickness direction top portion, first installation hole is located installation attachment surface area and passes through installation attachment surface, and installation attachment surface is used for with the outer bottom wall of mounting beam attachment, and first installation hole is used for with mounting beam connection, the outer periphery of mounting plate and / or the bottom of mounting plate along the thickness direction is equipped with the connecting portion, and the connecting portion is used for with the top of battery pack box body connection.

[0029] The mounting structure, installation attachment surface is arranged at the top of the mounting plate along the thickness direction, the connecting portion is arranged at the bottom of the mounting plate along the thickness direction, the installation attachment surface is attached to the outer bottom wall of the mounting beam, the mounting beam and the mounting plate are connected through the first installation hole, and the mounting plate and the top of the battery pack box body are connected through the connecting portion, so as to mount the battery pack box body on the mounting beam, and the mounting plate is limited between the mounting beam and the top of the battery pack box body, so that the mounting structure is simple in structure, small in size and does not occupy the internal space of the battery pack box body compared with the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the structure diagram of the mounting structure provided by the embodiment of the utility model Figure 1;

[0031] Figure 2 is a cross section of the mounting structure provided by the embodiment of the utility model Figure 1 ;

[0032] Figure 3 is a cross section of the mounting structure provided by the embodiment of the utility model Figure 2 ;

[0033] Figure 4 is a cross section of the mounting structure provided by the embodiment of the utility model Figure 3 ;

[0034] Figure 5 is a cross section of the mounting structure and the liquid cooling plate provided by the embodiment of the utility model

[0035] Figure 6 is a structure diagram of the mounting structure provided by the embodiment of the utility model Figure 2 ;

[0036] Figure 7 is a structure diagram of the mounting beam along the first view angle provided by the embodiment of the utility model

[0037] Figure 8 is a structure diagram of the mounting beam along the second view angle provided by the embodiment of the utility model

[0038] Figure 9 is an assembly diagram of the mounting beam and the mounting structure along the third view angle provided by the embodiment of the utility model

[0039] Figure 10 is an assembly diagram of the mounting beam and the mounting structure along the fourth view angle provided by the embodiment of the utility model

[0040] Figure 11 is an assembly diagram of the upright battery pack and the mounting structure provided by the embodiment of the utility model

[0041] Figure 12 is an assembly diagram of the inverted battery pack and the mounting structure provided by the embodiment of the utility model

[0042] Figure 13 is a partial exploded view of the inverted battery pack box provided by the embodiment of the utility model Figure 1 ;

[0043] Figure 14 is a partial exploded view of the inverted battery pack box provided by the embodiment of the utility model Figure 2 .

[0044] In the drawings:

[0045] 1, mounting plate; 11, mounting plate body; 111, second protrusion; 12, mounting reinforcement; 13, connecting sleeve; 131, first mounting hole; 14, wire passage;

[0046] 2, mounting beam; 21, top beam part; 211, avoiding hole; 22, bottom beam part; 221, second mounting hole; 23, side beam part; 24, buffer cavity;

[0047] 31a, first battery compartment; 32a, first battery cover; 33a, first liquid cooling plate; 34a, first uniform temperature plate;

[0048] 31b, second battery compartment; 32b, second battery cover; 33b, second liquid cooling plate; 331, first protrusion; 34b, second uniform temperature plate;

[0049] 4, battery cell; 41, battery cell body; 42, pole;

[0050] 5, screw. DETAILED DESCRIPTION

[0051] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0052] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0053] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0054] In the description of the embodiments, the terms "upper", "lower", "right", "left", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0055] Embodiment one

[0056] The utility model provides a mounting structure, like Figures 1-12 As shown, the mounting structure comprises a mounting plate 1, the mounting plate 1 is formed with the first installation hole 131 extending along the thickness direction, and the top of the mounting plate 1 along the thickness direction is formed with an installation fitting surface, the first installation hole 131 is located in the area of installation fitting surface and penetrates the installation fitting surface, the installation fitting surface is used for fitting with the outer bottom wall of the mounting beam 2, and the first installation hole 131 is used for being connected with the mounting beam 2, the outer periphery of the mounting plate 1 and / or the bottom of the mounting plate 1 along the thickness direction is provided with a connecting part, and the connecting part is used for being connected with the top of the battery pack box body.

[0057] The mounting structure, installation fitting surface is set on the top of the mounting plate 1 along the thickness direction, the connecting part is set on the bottom of the mounting plate 1 along the thickness direction, the installation fitting surface is fitted with the outer bottom wall of the mounting beam 2, the mounting beam 2 and the mounting plate 1 are connected through the first installation hole 131, and then the mounting plate 1 and the top of the battery pack box body are connected through the connecting part, to realize that the battery pack box body is mounted on the mounting beam 2, and the mounting plate 1 is limited between the mounting beam 2 and the top of the battery pack box body, so that the mounting structure is simple in structure, small in size and does not occupy the internal space of the battery pack box body compared with the prior art.

[0058] Specifically, for the upright-mounted battery pack box body, the installation fitting surface is fitted with the outer bottom wall of the mounting beam 2, the mounting beam 2 and the mounting plate 1 are connected through the first installation hole 131, and then the mounting plate 1 and the top of the first battery cover 32a are connected through the connecting part, to realize that the upright-mounted battery pack box body is mounted on the mounting beam 2, which is simple in structure, small in size and does not occupy the internal space of the battery pack box body.

[0059] Specifically, for the inverted-mounted battery pack box body, the installation fitting surface is fitted with the outer bottom wall of the mounting beam 2, the mounting beam 2 and the mounting plate 1 are connected through the first installation hole 131, and then the mounting plate 1 and the outer top wall of the second battery compartment 31b away from the opening are connected through the connecting part, to realize that the inverted-mounted battery pack box body is mounted on the mounting beam 2, which is simple in structure, small in size and does not occupy the internal space of the battery pack box body.

[0060] Therefore, the mounting structure is suitable for both the upright-mounted battery pack box body and the inverted-mounted battery pack box body; secondly, the mounting structure has small volume, simple structure, and does not occupy the internal space of the battery pack box body.

[0061] Specifically, as shown in Figure 11 , the upright-mounted battery pack box body refers to that, along the height direction of the battery pack box body, the first battery cover 32a is covered on the opening of the first battery compartment 31a and is located above the first battery compartment 31a, and the cell 4 is fixed in the first battery compartment 31a and the pole 42 of the cell 4 is located above the cell body 41.

[0062] Specifically, as shown in Figure 12 , the inverted-mounted battery pack box body refers to that, along the height direction of the battery pack box body, the second battery cover 32b is covered on the opening of the second battery compartment 31b and is located below the second battery compartment 31b, and the cell 4 is fixed in the second battery compartment 31b and the pole 42 of the cell 4 is located below the cell body 41.

[0063] It can be understood that the thickness direction of the mounting plate 1 is parallel to the height direction of the battery pack box body.

[0064] Preferably, as shown in Figures 1-6 , the mounting plate 1 comprises a mounting plate body 11 and a mounting reinforcing portion 12 protruding on the top of the mounting plate body 11 along the thickness direction of the mounting plate body 11. The top of the mounting reinforcing portion 12 is provided with a mounting and fitting surface; the outer periphery of the mounting plate body 11 and / or the bottom of the mounting plate body 11 is provided with a connecting portion. In this way, the extension depth of the first mounting hole 131 along the thickness direction of the mounting plate 1 can be adaptively increased according to the working condition requirements, the connection reliability of the mounting plate 1 and the mounting beam 2 is improved, and the lightweight effect of the mounting plate 1 is improved.

[0065] It can be understood that the thickness direction of the mounting plate 1, the thickness direction of the mounting plate body 11 and the thickness direction of the mounting reinforcing portion 12 are all parallel.

[0066] Further, as shown in Figure 1 and Figure 6 , the number of mounting reinforcing portions 12 is multiple, and a wire passing channel 14 is formed between any two adjacent mounting reinforcing portions 12. It can be understood that the wire passing channel 14 can be used for passing through the wire and other structures, and also serves as a weight reduction structure. Specifically, the spacing between any two adjacent mounting reinforcing portions 12 can be adaptively adjusted according to the distribution position of the wire and other structures. In the embodiment, as shown in Figure 1 and Figure 6 , five mounting reinforcing portions 12 are exemplarily provided.

[0067] In other embodiments, the mounting reinforcement 12 has the same shape as the mounting plate body 11, and the mounting reinforcement 12 and the mounting plate body 11 have the same thickness or different thicknesses. That is, the mounting plate 1 as a whole is a plate member. It can be understood that, along the thickness direction of the mounting plate 1, the top surface of the mounting plate 1 is the mounting fitting surface, and the outer periphery of the mounting plate 1 and / or the bottom of the mounting plate 1 is provided with a connecting portion. The battery pack box can also be mounted on the mounting beam 2.

[0068] Preferably, as shown in Figure 1 , Figure 7 , Figure 9 and Figure 10 , the mounting fitting surface is a flat surface, and at least the portion of the outer bottom wall of the mounting beam 2 that fits with the mounting fitting surface is a flat surface. In other embodiments, the mounting fitting surface is a curved surface, and at least the portion of the outer bottom wall of the mounting beam 2 that fits with the mounting fitting surface is a curved surface. In other embodiments, the mounting fitting surface can also be a stepped surface, etc. The outer bottom wall of the mounting beam 2 is provided with a surface that matches the shape of the mounting fitting surface.

[0069] Preferably, as shown in Figures 2-5 , the mounting reinforcement 12 is provided with an assembly hole extending along the thickness direction; or, the mounting reinforcement 12 is provided with a first sub-assembly hole extending along the thickness direction, and the mounting plate body 11 is provided with a second sub-assembly hole extending along the thickness direction, and the first sub-assembly hole and the second sub-assembly hole form a through assembly hole. The mounting plate 1 further comprises a connecting sleeve 13 fixedly arranged in the assembly hole, and the connecting sleeve 13 is formed with a first mounting hole 131. By arranging the connecting sleeve 13 and forming the first mounting hole 131 on the connecting sleeve 13, the risk of cracking or even breaking of the hole wall caused by the hole on the mounting reinforcement 12 can be avoided, and the risk of cracking or even breaking of the hole wall caused by the hole on the mounting plate body 11 can be avoided, thereby further reducing the production cost and improving the production efficiency.

[0070] Further preferably, the axial length of the assembly hole is equal to the axial length of the connecting sleeve 13. This avoids the connecting sleeve 13 partially protruding from the mounting fitting surface and interfering with the fitting of the mounting fitting surface and the outer bottom wall of the mounting beam 2.

[0071] Further preferably, the mounting plate body 11 and the mounting reinforcement 12 are integrally formed on the outer periphery of the connecting sleeve 13. Arranging the mounting plate body 11 and the mounting reinforcement 12 to be integrally formed on the outer periphery of the connecting sleeve 13, compared with the prior art of welding the mounting reinforcement to the mounting plate body, can improve the structural strength of the formed mounting plate 1, and can reduce the number of parts, reduce the production cost, and improve the production efficiency.

[0072] Specifically, before the mounting plate body 11 and the mounting reinforcement 12 are integrally formed, the connecting sleeve 13 is placed in the casting mold. After casting, the mounting plate body 11 and the mounting reinforcement 12 can be integrally formed on the outer periphery of the connecting sleeve 13. This also improves the connection reliability between the mounting plate body 11 and the mounting reinforcement 12 and the connecting sleeve 13.

[0073] In other embodiments, the mounting plate body 11 and the mounting reinforcement 12 of the mounting plate 1 are integrally formed. After the mounting plate body 11 and the mounting reinforcement 12 are integrally formed, a first mounting hole 131 is machined on the mounting reinforcement 12, or a first mounting hole 131 is machined on the mounting reinforcement 12 and the mounting plate body 11.

[0074] Preferably, such as Figures 2-5 As shown, the first mounting hole 131 is a threaded hole. The mounting structure also includes a connector, which passes through the second mounting hole 221 on the mounting beam 2 and is threadedly connected to the first mounting hole 131, so as to realize the mounting of the battery pack box to the mounting beam 2 through the mounting structure. Figure 1 As shown, the connector is screw 5, and preferably the screw 5 has a flat head at the front end with threads.

[0075] Specifically, such as Figure 2 and Figure 3 As shown, the threaded hole is a blind threaded hole that does not extend to the bottom wall of the mounting plate body 11 along the thickness direction of the mounting plate 1; or as shown in the figure. Figure 4 and Figure 5 As shown, the thread is a threaded through hole extending along the thickness direction of the mounting plate 1 to the bottom wall of the mounting plate body 11. Furthermore, for the first mounting hole 131 being a threaded through hole, to avoid damage to the lower battery pack housing when the connector is threadedly connected to the first mounting hole 131, the length of the connector along the thickness direction of the mounting plate 1 cannot exceed the thickness of the mounting plate 1. The reliability of the connection between the battery pack housing and the mounting beam 2 can be improved by increasing the thickness of the mounting reinforcement 12. It can be understood that increasing the thickness of the mounting reinforcement 12 increases the extension depth of the first mounting hole 131, thereby effectively improving the reliability of the connection between the battery pack housing and the mounting beam 2.

[0076] In other embodiments, the first mounting hole 131 is a riveting hole, and the mounting structure also includes a connector, which includes a riveting screw. The riveting screw is riveted to the mounting plate 1, and the threaded connection portion of the riveting screw passes through the top of the mounting reinforcement 12 along the thickness direction from bottom to top and is used to connect with the mounting beam 2. This also enables the battery pack housing to be mounted on the mounting beam 2 via the mounting structure. Specifically, the riveting portion of the riveting screw is riveted to the mounting plate 1 through the riveting hole; the connector also includes a nut, and along the thickness direction of the mounting plate 1, the threaded connection portion of the riveting screw passes through the riveting hole and the second mounting hole 221 of the mounting beam 2 from bottom to top and is threadedly connected to the nut.

[0077] It is understandable that, for the connection sleeve 13, the first mounting hole 131 is either a threaded hole or a press-fit hole. For machining the first mounting hole 131 on the mounting reinforcement 12, or machining the first mounting hole 131 on both the mounting reinforcement 12 and the mounting plate body 11, the first mounting hole 131 is either a threaded hole or a press-fit hole.

[0078] Preferably, the connecting sleeve 13 is made of a steel substrate. This ensures that the structure of the connecting sleeve 13 is not damaged when the first mounting hole 131 is opened on the connecting sleeve 13. In other embodiments, the connecting sleeve 13 may also be made of other metal materials such as an aluminum substrate.

[0079] Preferably, the thickness of the mounting plate body 11 ranges from 0.8 mm to 1.5 mm. The thickness of the mounting reinforcement 12 ranges from 4 to 8 times the diameter of the first mounting hole 131. It is understood that the thickness of the mounting plate body 11 can be adaptively set to 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, or 1.2 mm, etc., according to actual working conditions. The thickness of the mounting reinforcement 12 can be adaptively set to 4 times, 5 times, 6 times, 7 times, or 8 times the diameter of the first mounting hole 131, etc., according to actual working conditions. The thinner the plate thickness of the mounting plate body 11 and the thickness of the mounting reinforcement 12, the better the lightweight effect of the mounting plate 1, but it will affect the structural strength and connection reliability of the mounting plate 1; the thicker the plate thickness of the mounting plate body 11 and the thickness of the mounting reinforcement 12, the worse the lightweight effect of the mounting plate 1, but the better the structural strength and connection reliability of the mounting plate 1.

[0080] Based on the structural strength, connection reliability, and molding quality requirements of the mounting plate 1, 0.8 mm is the minimum plate thickness for ensuring working performance of the mounting plate body 11, obtained through extensive prior experiments and theoretical analysis. For the mounting plate body 11, 0.8 mm to 1.2 mm is the optimal plate thickness range that balances lightweighting, connection strength, and molding quality. Therefore, the preferred plate thickness range for the mounting plate body 11 is 0.8 mm to 1.2 mm. For the mounting plate body 11 in this embodiment, considering lightweighting, connection strength, and molding quality, the preferred plate thickness is 1.2 mm. For the mounting reinforcement 12, 4 to 6 times the diameter of the first mounting hole 131 is the optimal plate thickness range that balances lightweighting, connection strength, and molding quality. Therefore, the preferred thickness range for the mounting reinforcement 12 is 4 to 6 times the diameter of the first mounting hole 131. For the mounting reinforcement 12 in this embodiment, considering lightweighting, connection strength, and the molding quality of integral casting, the thickness of the mounting reinforcement 12 is preferably 6.5 times the diameter of the first mounting hole 131. Taking a threaded hole 131 with a diameter of 10 mm as an example, the thickness of the mounting reinforcement 12 is 65 mm.

[0081] Specifically, the shape of the mounting plate body 11 can be set to a cuboid, cube, etc., according to actual working conditions. The shape of the mounting reinforcement 12 can be set to a cylindrical, cube, or cuboid shape, etc., according to actual working conditions. In this embodiment, as... Figures 1-6 As shown, the mounting plate body 11 is shaped like a cuboid, the mounting reinforcement part 12 is shaped like a cuboid, and the four corners of the outer periphery of the mounting reinforcement part 12 are all rounded chamfers.

[0082] Preferably, the mounting plate body 11 and the mounting reinforcement 12 of the mounting plate 1 are made of a brazable metal material. This allows the bottom of the mounting plate body 11 to be directly brazed to the top of the battery pack housing, reducing connection costs. In this embodiment, the mounting plate body 11 and the mounting reinforcement 12 of the mounting plate 1 are preferably made of aluminum-manganese alloy. That is, the mounting plate body 11 and the mounting reinforcement 12 of the mounting plate 1 are preferably integrally formed from aluminum-manganese alloy. In other embodiments, other brazable metal materials can also be used to make the mounting plate body 11 and the mounting reinforcement 12 of the mounting plate 1. Specifically, the mechanical properties of the brazable metal material used are: yield strength ≥ 100 MPa, tensile strength ≥ 150 MPa, and elongation ≥ 10%. Furthermore, when casting the mounting plate body 11 and the mounting reinforcement 12 of the mounting plate 1, the material must have good castability, no tendency to hot crack, and no shrinkage cavities or porosity during the casting process. This design avoids incomplete welds when brazing the bottom of the mounting plate body 11 to the top of the first battery cover 32a for upright battery pack housings, and avoids incomplete welds when brazing the bottom of the mounting plate body 11 to the top of the second liquid cooling plate 33b or the outer top wall of the second battery compartment 31b away from the opening for inverted battery pack housings. Additionally, to meet the brazing temperature requirements, the melting point of the material used must be lower than the brazing temperature. In this embodiment, medium-temperature brazing is preferred, with a brazing temperature of 450℃ to 950℃.

[0083] Brazing refers to a welding method in which the workpieces are connected by simultaneously heating a filler metal with a filler metal that is below the melting point of the workpieces to the melting temperature of the filler metal, and then using the liquid filler metal to fill the gaps in the solid workpieces.

[0084] Example 2

[0085] This utility model also discloses a battery pack housing, including the mounting structure described in Embodiment 1, with the connecting part fixedly connected to the top of the battery pack housing. For example... Figure 11 As shown, the battery pack housing includes a first battery compartment 31a and a first battery cover 32a connected to the opening of the first battery compartment 31a. Along the height direction of the battery pack housing, a connecting portion is fixedly connected to the top of the first battery cover 32a, and the opening of the first battery compartment 31a faces the connecting portion. It can be understood that this battery pack housing is a positively mounted battery pack housing. By adopting the above-described mounting structure, the positively mounted battery pack housing can be mounted on the mounting beam 2, while avoiding the mounting structure occupying the internal space of the battery pack housing.

[0086] Optionally, the connecting portion at the bottom of the mounting plate body 11 is welded to the top of the first battery cover 32a. Preferably, the first battery cover 32a is made of a brazable metal material, which facilitates brazing of the first battery cover 32a to the connecting portion at the bottom of the mounting plate body 11 and improves connection reliability. Specifically, in this embodiment, the first battery cover 32a is exemplaryly made of a brazable aluminum substrate metal material. Specifically, the connecting portion at the bottom of the mounting plate body 11 is the bottom surface of the mounting plate body 11, and the bottom surface of the mounting plate body 11 is welded to the top surface of the first battery cover 32a. In other embodiments, the mounting plate 1 is integrally formed on the top of the first battery cover 32a. That is, the first battery cover 32a, the mounting plate body 11 of the mounting plate 1, and the mounting reinforcement 12 are integrally formed. Specifically, the connecting portion on the outer periphery of the mounting plate body 11 is the outer peripheral surface of the mounting plate body 11, and the connecting portion at the bottom of the mounting plate body 11 is the bottom surface of the mounting plate body 11. Both the outer peripheral surface and the bottom surface of the mounting plate body 11 are integrally formed on the bottom of the first battery cover 32a. This configuration, while achieving a fixed connection between the connecting portion and the top of the first battery cover 32a, reduces the number of parts and improves the reliability of the connection between the mounting plate body 11 and the first battery cover 32a.

[0087] Optionally, such as Figure 11 As shown, the battery pack housing also includes a first liquid cooling plate 33a, which is fixedly connected to the bottom wall of the first battery compartment 31a. This allows for heat dissipation of the battery cells 4 housed within the first battery compartment 31a. In some embodiments, such as Figure 11 As shown, the first liquid cooling plate 33a is fixedly connected to the outer bottom wall of the first battery compartment 31a and located outside the first battery compartment 31a. In other embodiments, the first liquid cooling plate 33a is fixedly connected to the inner bottom wall of the first battery compartment 31a and located inside the first battery compartment 31a. In other embodiments, the first liquid cooling plate 33a is fixed inside the bottom wall of the first battery compartment 31a.

[0088] Optionally, such as Figure 11 As shown, the battery pack housing also includes a first heat spreader 34a. The periphery of the first heat spreader 34a is sealed to the periphery of the first liquid cooling plate 33a, forming a liquid cooling channel between the first heat spreader 34a and the first liquid cooling plate 33a. Further, the first heat spreader 34a is an independent plate, or the first heat spreader 34a is integrally formed on the bottom of the first battery compartment 31a, meaning the first heat spreader 34a is part of the bottom of the first battery compartment 31a.

[0089] like Figure 11As shown, for the first heat spreader 34a as an independent plate, the first liquid cooling plate 33a is fixedly connected to the inner or outer bottom wall of the first battery compartment 31a, and the first heat spreader 34a is located between the first liquid cooling plate 33a and the bottom wall of the first battery compartment 31a. The periphery of the first heat spreader 34a is sealed to the periphery of the first liquid cooling plate 33a by friction stir welding. The periphery of the first liquid cooling plate 33a is also integrated to the outer bottom wall of the first battery compartment 31a by friction stir welding, laser welding, or brazing. This can improve the reliability of liquid cooling of the battery cell 4. Among them, friction stir welding refers to using the heat generated by the friction between a high-speed rotating welding tool (called a stirring head) and the workpiece to locally melt the material to be welded; during the welding process, the stirring head moves forward along the welding interface, and the plasticized material flows from the front to the rear of the welding tool under the action of the rotational friction force of the welding tool, and forms a dense solid phase weld under the extrusion of the welding tool.

[0090] For the first heat spreader 34a integrally formed on the bottom wall of the first battery compartment 31a, and the first liquid cooling plate 33a fixedly connected to the inner or outer bottom wall of the first battery compartment 31a, the first liquid cooling plate 33a is integrated into the outer bottom wall of the first battery compartment 31a by means of friction stir welding, laser welding or brazing.

[0091] Example 3

[0092] This utility model also discloses a battery pack housing, including the mounting structure described in Embodiment 1, with the connecting part fixedly connected to the top of the battery pack housing. For example... Figures 12-14 As shown, the battery pack housing includes a second battery compartment 31b and a second battery cover 32b connected to the opening of the second battery compartment 31b. Along the height direction of the battery pack housing, a connecting portion is fixedly connected to the outer top wall of the second battery compartment 31b away from the opening, and the opening of the second battery compartment 31b faces away from the connecting portion. It can be understood that this battery pack housing is an inverted, mounted battery pack housing. By adopting the above-described mounting structure, the inverted battery pack housing can be mounted on the mounting beam 2, while avoiding the mounting structure occupying the internal space of the battery pack housing.

[0093] Optionally, such as Figures 12-14 As shown, the battery pack housing also includes a second liquid cooling plate 33b; along the height direction of the battery pack housing, the second liquid cooling plate 33b is integrated into the outer top wall of the second battery compartment 31b away from the opening, and the connecting part is fixedly connected to the top of the second liquid cooling plate 33b. This allows the inverted battery pack housing to be hung on the mounting beam 2, and also allows for heat dissipation of the battery cells 4 housed in the battery pack housing.

[0094] Optionally, such as Figure 12 and Figure 13As shown, the battery pack housing also includes a second heat spreader 34b. The periphery of the second heat spreader 34b is sealed to the periphery of the second liquid cooling plate 33b, forming a liquid cooling channel between the two plates. Further, the second heat spreader 34b is an independent plate, or it is integrally formed on the outer top wall of the second battery compartment 31b away from the opening, meaning the second heat spreader 34b is part of the top wall of the second battery compartment 31b. Further, the second liquid cooling plate 33b is an independent plate, or it is integrally formed on the outer top wall of the second battery compartment 31b away from the opening, meaning the second liquid cooling plate 33b is also part of the top wall of the second battery compartment 31b.

[0095] like Figure 12 and Figure 13 As shown, the second heat spreader 34b is an independent plate, as is the second liquid cooling plate 33b. The second heat spreader 34b is located between the second liquid cooling plate 33b and the outer top wall of the second battery compartment 31b away from the opening. The periphery of the second heat spreader 34b is sealed to the periphery of the second liquid cooling plate 33b by friction stir welding. The periphery of the second liquid cooling plate 33b is also integrated into the outer top wall of the second battery compartment 31b away from the opening by friction stir welding, laser welding, or brazing. This improves the reliability of liquid cooling for the battery cell 4.

[0096] For the second heat spreader 34b integrally formed on the outer top wall of the second battery compartment 31b away from the opening, and the second liquid cooling plate 33b being an independent plate, the second liquid cooling plate 33b is integrated into the outer bottom wall of the second battery compartment 31b by means of friction stir welding, laser welding or brazing.

[0097] Understandably, for the inverted battery pack housing, if the second liquid cooling plate 33b is integrated into the outer top wall of the second battery compartment 31b away from the opening, the connecting part is fixedly connected to the top of the second liquid cooling plate 33b. If the second liquid cooling plate 33b is not integrated into the outer top wall of the second battery compartment 31b away from the opening, the connecting part is fixedly connected to the outer top wall of the second battery compartment 31b away from the opening.

[0098] Specifically, such as Figures 12-14 As shown, for the second liquid cooling plate 33b integrated on the outer top wall of the second battery compartment 31b away from the opening, it is preferable that the mounting plate 1 has a connecting part at its bottom along the thickness direction. The connecting part is the bottom surface of the mounting plate 1, and the bottom surface of the mounting plate 1 is completely attached to the top surface of the second liquid cooling plate 33b and fixedly connected to the top surface of the second liquid cooling plate 33b. This arrangement can prevent the accumulation of rainwater and other substances from corroding the second liquid cooling plate 33b. Specifically, as... Figure 5 and Figure 6As shown, the second liquid cooling plate 33b is provided with at least one first groove and at least one first protrusion 331. The connecting part includes the bottom surface of the mounting plate body 11 along the thickness direction, and at least one second groove and at least one second protrusion 111 disposed on the bottom surface of the mounting plate body 11 along the thickness direction. The at least one first groove and the at least one second protrusion 111 are inserted into and completely fitted one-to-one, and the at least one first protrusion 331 and the at least one second groove are inserted into and completely fitted one-to-one. This can prevent rainwater and other substances from accumulating in the first groove on the second liquid cooling plate 33b, which would cause the second liquid cooling plate 33b to be corroded. Furthermore, an anti-corrosion layer is sprayed on the other areas of the top surface of the second liquid cooling plate 33b where the mounting plate 1 is not disposed. The anti-corrosion layer, the at least one second groove, and the at least one second protrusion 111 work together to completely prevent rainwater and other substances from accumulating on the top surface of the second liquid cooling plate 33b, which would cause the second liquid cooling plate 33b to be corroded. Furthermore, it is preferable that the second liquid cooling plate 33b is made of aluminum substrate, which facilitates the brazing of the second liquid cooling plate 33b to the bottom surface of the mounting plate body 11 and can improve the connection reliability.

[0099] In other embodiments, the mounting plate 1 is integrally formed on the top of the second liquid cooling plate 33b. That is, the second liquid cooling plate 33b, the mounting plate body 11, and the mounting reinforcement 12 of the mounting plate 1 are integrally formed. Specifically, the connecting portion on the outer periphery of the mounting plate body 11 is the outer peripheral surface of the mounting plate body 11, and the connecting portion at the bottom of the mounting plate body 11 is the bottom surface of the mounting plate body 11. Both the outer peripheral surface and the bottom surface of the mounting plate body 11 are integrally formed on the top of the second liquid cooling plate 33b. This configuration, while achieving a fixed connection between the connecting portion and the top of the second liquid cooling plate 33b, reduces the number of parts and improves the connection reliability between the mounting plate body 11 and the second liquid cooling plate 33b.

[0100] Specifically, for the second battery compartment 31b where the outer top wall away from the opening is not integrated with the second liquid cooling plate 33b, the connecting part at the bottom of the mounting plate body 11 is welded to the outer top wall of the second battery compartment 31b away from the opening. Preferably, the second battery compartment 31b is made of a brazable metal material, which facilitates the brazing of the connecting part between the outer top wall of the second battery compartment 31b away from the opening and the bottom of the mounting plate body 11, and improves the reliability of the connection.

[0101] Specifically, in this embodiment, the second battery compartment 31b is exemplaryly made of a brazable aluminum substrate. Specifically, the connecting part at the bottom of the mounting plate body 11 is the bottom surface of the bottom of the mounting plate body 11, and the bottom surface of the mounting plate body 11 is welded to the outer top wall of the second battery compartment 31b away from the opening.

[0102] In other embodiments, the mounting plate 1 is integrally formed on the outer top wall of the second battery compartment 31b away from the opening. That is, the second battery compartment 31b, the mounting plate body 11, and the mounting reinforcement 12 of the mounting plate 1 are integrally formed. Specifically, the connecting portion on the outer periphery of the mounting plate body 11 is the outer peripheral surface of the mounting plate body 11, and the connecting portion at the bottom of the mounting plate body 11 is the bottom surface of the mounting plate body 11. Both the outer peripheral surface and the bottom surface of the mounting plate body 11 are integrally formed on the top of the second battery compartment 31b. This configuration, while achieving a fixed connection between the connecting portion and the top of the second battery compartment 31b, reduces the number of parts and improves the connection reliability between the mounting plate body 11 and the second battery compartment 31b.

[0103] Example 4

[0104] This embodiment discloses a battery pack, such as Figure 11 and Figure 12 As shown, it includes battery cell 4 and a battery pack housing according to embodiment two or three, with battery cell 4 housed in the battery pack housing.

[0105] By adopting the battery pack housing shown in Embodiment 2 or Embodiment 3, the number of battery cells 4 that can be accommodated in the battery pack housing can be effectively increased, thereby effectively improving the working performance of the battery pack.

[0106] Specifically, such as Figure 11 As shown, when the battery cell 4 is housed in the battery pack housing shown in Embodiment 2, the battery cell 4 is upright, and the battery cell body 41 of the battery cell 4 is fixed inside the first battery compartment 31a. Figure 12 As shown, when the battery cell 4 is housed in the battery pack housing shown in Embodiment 3, the battery cell 4 is inverted, and the battery cell body 41 of the battery cell 4 is fixed in the second battery compartment 31b.

[0107] Example 5

[0108] This embodiment provides a vehicle, such as Figures 7-10 , Figure 13 and Figure 14 As shown, it includes the mounting beam 2 and the aforementioned battery pack. By using the aforementioned battery pack, the vehicle's range can be effectively improved.

[0109] Specifically, such as Figures 2-8 , Figure 13 and Figure 14 As shown, the mounting beam 2 is provided with a second mounting hole 221 that communicates with the first mounting hole 131. The battery pack is mounted on the mounting beam 2 through the first mounting hole 131 and the second mounting hole 221, which is simple in structure and convenient for installation and removal.

[0110] Specifically, such as Figure 7As shown, the second mounting hole 221 is a through hole. For the first mounting hole 131, which is a threaded hole, the screw passes through the second mounting hole 221 and is threadedly connected to the first mounting hole 131. For the first mounting hole 131, which is a press-fit hole, the riveting portion of the press-fit screw is press-fitted to the mounting plate 1 through the press-fit hole, and the threaded connection portion of the press-fit screw passes from bottom to top through the press-fit hole and the second mounting hole 221 of the mounting beam 2 and is threadedly connected to the nut.

[0111] Specifically, such as Figure 7 As shown, the mounting beam 2 includes a top beam portion 21 and a bottom beam portion 22 spaced apart along the thickness direction, and two side beam portions 23 connecting the top beam portion 21 and the bottom beam portion 22. A buffer cavity 24 is formed between the bottom beam portion 22, the bottom beam portion 22, and the two side beam portions 23. In this embodiment, the cross-section of the mounting beam 2 is U-shaped. The inner and outer layers of the top beam portion 21 are connected by a connecting wall; the inner and outer layers of the bottom beam portion 22 are connected by a connecting wall; and the inner and outer layers of the side beam portions 23 are connected by a connecting wall. In other embodiments, the cross-section of the mounting beam 2 is rectangular or other shapes.

[0112] Specifically, such as Figure 7 As shown, the second mounting hole 221 passes through the bottom beam portion 22 of the mounting beam 2 and communicates with the buffer cavity 24.

[0113] Preferably, such as Figures 7-9 , Figure 13 and Figure 14 As shown, the top beam 21 is provided with a clearance hole 211 communicating with the buffer cavity 24. The clearance hole 211 is located directly above the second mounting hole 221, and the diameter of the clearance hole 211 is larger than the maximum diameter of the connector. This facilitates the installation and removal of the connector. Taking the first mounting hole 131 as a threaded hole with a diameter of 10mm as an example, the diameter of the second mounting hole 221 is adapted to be 10mm or slightly larger than 10mm; the diameter of the clearance hole 211 is 20mm. After the screw 5 passes through the clearance hole 211 and enters the buffer cavity 24, the screw 5 passes through the second mounting hole 221 and is threadedly connected to the first mounting hole 131. Preferably, the screw 5 is a carbon steel screw.

[0114] Preferably, the mounting beam 2 is made of steel to ensure its structural strength. In other embodiments, the mounting beam 2 may also be made of other metal materials such as aluminum.

[0115] Preferably, the thickness of the mounting beam 2 ranges from 0.8mm to 1.5mm. It is understood that the thickness of the mounting beam 2 can be adaptively set to 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, or 1.5mm, etc., according to actual working conditions. A thinner mounting beam 2 results in better weight reduction, but it affects the structural strength and connection reliability. Conversely, a thicker mounting beam 2 results in poorer weight reduction, but better structural strength and connection reliability.

[0116] Based on the structural strength and connection reliability requirements of the mounting beam 2, 0.8mm is the minimum plate thickness for ensuring the working performance of the mounting beam 2, obtained through a combination of extensive prior experiments and theoretical analysis. For the mounting beam 2, 0.8mm to 1.2mm is the optimal plate thickness range that balances lightweight design and connection strength. Therefore, the preferred plate thickness range for the mounting beam 2 is 0.8mm to 1.2mm. For the mounting beam 2 in this embodiment, considering both lightweight design and connection strength, the preferred plate thickness is 1.2mm.

[0117] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A mounting structure, characterized in that, include: Mounting plate (1), the mounting plate (1) has a first mounting hole (131) extending in the thickness direction, and the mounting plate (1) has a mounting mating surface at the top in the thickness direction; the first mounting hole (131) is located in the area of ​​the mounting mating surface and penetrates the mounting mating surface, the mounting mating surface is used to fit against the outer bottom wall of the mounting beam (2), and the first mounting hole (131) is used to connect with the mounting beam (2); The outer periphery of the mounting plate (1) and / or the bottom of the mounting plate (1) along the thickness direction are provided with a connecting part, which is used to connect to the top of the battery pack box.

2. The mounting structure according to claim 1, characterized in that, The mounting plate (1) includes a mounting plate body (11) and a mounting reinforcement part (12) protruding from the top of the mounting plate body (11) along the thickness direction of the mounting plate body (11). The mounting reinforcement part (12) has the mounting and fitting surface at its top; the mounting plate body (11) has the connecting part on its outer periphery and / or at its bottom. The first mounting hole (131) is formed in the mounting reinforcement (12); or, the first mounting hole (131) is formed in the mounting reinforcement (12) and the mounting plate body (11).

3. The mounting structure according to claim 2, characterized in that, The number of mounting reinforcement parts (12) is multiple, and a wire passage (14) is formed between any two adjacent mounting reinforcement parts (12).

4. The mounting structure according to claim 2, characterized in that: The mounting reinforcement (12) is provided with an assembly hole extending in the thickness direction; or, the mounting reinforcement (12) is provided with a first sub-assembly hole extending in the thickness direction, and the mounting plate body (11) is provided with a second sub-assembly hole extending in the thickness direction, wherein the first sub-assembly hole and the second sub-assembly hole form a through assembly hole. The mounting plate (1) also includes a connecting sleeve (13), which is fixedly disposed in the assembly hole and has the first mounting hole (131) formed therein.

5. The mounting structure according to claim 4, characterized in that, The mounting plate body (11) and the mounting reinforcement (12) are integrally formed on the outer periphery of the connecting sleeve (13).

6. The mounting structure according to any one of claims 2-5, characterized in that: The thickness of the mounting plate body (11) ranges from 0.8 mm to 1.5 mm; and / or, The thickness of the mounting reinforcement (12) ranges from 4 to 8 times the diameter of the first mounting hole (131).

7. The mounting structure according to any one of claims 2-5, characterized in that, The mounting plate body (11) and the mounting reinforcement (12) of the mounting plate (1) are made of brazable metal material.

8. The mounting structure according to any one of claims 1-5, characterized in that, The first mounting hole (131) is a threaded hole; or, the first mounting hole (131) is a press-fit hole.

9. A battery pack housing, characterized in that, The mounting structure includes any one of claims 1-8, wherein the connecting part is fixedly connected to the top of the battery pack housing.

10. The battery pack housing according to claim 9, characterized in that, The battery pack housing includes a first battery compartment (31a) and a first battery cover (32a) connected to the opening of the first battery compartment (31a); along the height direction of the battery pack housing, the connecting part is fixedly connected to the top of the first battery cover (32a), and the opening of the first battery compartment (31a) faces the connecting part.

11. The battery pack housing according to claim 9, characterized in that, The battery pack housing includes a second battery compartment (31b) and a second battery cover (32b) connected to the opening of the second battery compartment (31b); along the height direction of the battery pack housing, the connecting part is fixedly connected to the outer top wall of the second battery compartment (31b) away from the opening, and the opening of the second battery compartment (31b) faces away from the connecting part.

12. The battery pack housing according to claim 11, characterized in that, The battery pack housing also includes a second liquid cooling plate (33b). Along the height direction of the battery pack housing, the second liquid cooling plate (33b) is integrated into the outer top wall of the second battery compartment (31b) away from the opening, and the connecting part is fixedly connected to the top of the second liquid cooling plate (33b).

13. The battery pack housing according to claim 12, characterized in that, The mounting plate (1) has a connecting part at its bottom along the thickness direction. The connecting part is the bottom surface of the mounting plate (1). The bottom surface of the mounting plate (1) is completely attached to the top surface of the second liquid cooling plate (33b) and is fixedly connected to the top surface of the second liquid cooling plate (33b).

14. A battery pack, comprising battery cells (4), characterized in that, It also includes the battery pack housing according to any one of claims 9-13, wherein the battery cell (4) is housed within the battery pack housing.

15. A vehicle, including a mounting beam (2), characterized in that, It also includes the battery pack as described in claim 14.

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