Battery box body and battery

Abstract

The utility model relates to a battery box body and a battery, the battery box body comprises a box frame, the box frame comprises an inner cavity and openings which are arranged at two sides of the box frame along a Z direction and are communicated with the inner cavity, and the Z direction is the height direction of the box frame; the protection plate comprises a first connecting part and a protection part, the protection plate is connected with the box frame through the first connecting part so as to block the opening in the side, in the Z direction, of the box frame, and the protection part corresponds to the inner cavity in position; the liquid cooling plate comprises a second connecting part and a liquid cooling part, the liquid cooling plate is connected with the box frame through the second connecting part and arranged on the side, close to the other opening, of the protection plate in the Z direction, and the liquid cooling part corresponds to the protection part in position; the reinforcing piece is arranged on the protection part and is positioned between the liquid cooling part and the protection part; the supporting piece is arranged on the side, away from the protection part, of the reinforcing piece in the Z direction in a protruding mode and abuts against the position between the reinforcing piece and the liquid cooling plate, and a gap is formed between the area, not abutting against the supporting piece, of the liquid cooling part and the reinforcing piece.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery housing and a battery. Background Technology

[0002] With the rapid expansion and development of the new energy market, the market share of new energy vehicles is gradually increasing. As a result, the application of power batteries, the core component of new energy vehicles, is becoming increasingly widespread in people's lives.

[0003] A power battery consists of a battery casing and battery cells. The battery cells are installed in the battery casing, which serves to support and protect them. Currently, the protective plates of the battery casing are made of relatively thin metal plates, resulting in weak protective strength. When the protective plates are impacted, they cannot effectively protect the battery cells inside the battery casing. Utility Model Content

[0004] Therefore, it is necessary to address the problem that the protective plates of traditional battery boxes have weak protective strength and cannot effectively protect the battery cells inside the battery box when the plates are impacted, and to provide a battery box and battery that can effectively protect the battery cells inside the battery box.

[0005] On one hand, this application provides a battery housing, the battery housing comprising:

[0006] A box frame includes an inner cavity and openings located on both sides of the box frame along the Z direction and communicating with the inner cavity, wherein the Z direction is the height direction of the box frame;

[0007] The protective plate includes a first connecting part and a protective part. The protective plate is connected to the box frame through the first connecting part to block the opening of the box frame on one side along the Z direction. The protective part is positioned opposite to the inner cavity.

[0008] A liquid-cooled plate includes a second connecting part and a liquid-cooled part. The liquid-cooled plate is connected to the box frame through the second connecting part and is disposed along the Z direction on the side of the protective plate near the other opening. The liquid-cooled part is positioned opposite to the protective part.

[0009] A reinforcing member is provided on the protective part and located between the liquid cooling part and the protective part;

[0010] A support member protrudes from the side of the reinforcing member away from the protective part along the Z direction and abuts against the reinforcing member and the liquid cooling plate. There is a gap between the area of ​​the liquid cooling part that does not abut against the support member and the reinforcing member.

[0011] In one embodiment, the reinforcing member is a reinforcing plate disposed on the protective part, and the reinforcing plate is an integrally formed structure.

[0012] In one embodiment, the reinforcing member includes a third connecting portion and an arched portion that are interconnected. The third connecting portion is fitted with the protective portion along the Z direction, and the arched portion arches along the Z direction toward a side away from the protective portion. The supporting member protrudes from the arched portion.

[0013] In one embodiment, along the X direction, the arched portion is connected between two adjacent third connecting portions, so that the reinforcing plate has a wavy structure;

[0014] The X direction is the length direction of the box frame.

[0015] In one embodiment, the battery housing further includes a crossbeam and a longitudinal beam disposed within the inner cavity. The longitudinal beam extends along the X direction, and the crossbeam extends along the Y direction. The crossbeam and the longitudinal beam divide the inner cavity into multiple mounting cavities for mounting battery modules. The X direction is the length direction of the housing frame, and the Y direction is the width direction of the housing frame.

[0016] Each of the mounting cavities is provided with a corresponding reinforcing member.

[0017] In one embodiment, the box frame includes two end beams and two side beams, with the two ends of the two side beams respectively connected to the two end beams to form the box frame.

[0018] Each of the side beams includes a main body, a transverse rib, and a reinforcing part. The two ends of the main body are respectively connected to two end beams. At least one of the transverse ribs extends along the X direction and is disposed in the internal cavity of the main body. The reinforcing part is disposed on the outer side of the main body along the Y direction and extends along the X direction.

[0019] The X direction is the length direction of the box frame, and the Y direction is the width direction of the box frame.

[0020] In one embodiment, the reinforcing part is a hollow structure;

[0021] The battery housing also includes reinforcing beams, and each of the reinforcing parts has a cavity containing a reinforcing beam, which extends along the X direction.

[0022] In one embodiment, the battery housing further includes a lifting lug, and each of the reinforcing parts is provided with the lifting lug on the outer side along the Y direction. The lifting lug is detachably connected to the reinforcing part and the reinforcing beam by fasteners.

[0023] In one embodiment, the fastener includes a fastening screw and a nut, the fastening screw passing through the lug, the reinforcing part and the reinforcing beam, and the nut being screwed onto the fastening screw to lock the lug, the reinforcing part and the reinforcing beam together;

[0024] and / or

[0025] Each of the reinforcing parts has a plurality of lugs spaced apart along the X direction on its outer side.

[0026] On the other hand, this application also provides a battery, including the battery housing described above.

[0027] Compared with the prior art, this application has the following beneficial effects:

[0028] This application provides a battery casing with a reinforcing member on the side of the protective section facing the liquid cooling section along the Z-direction. The reinforcing member, combined with the protective plate, enhances the protective strength of the battery casing at one end along the Z-direction, thereby improving the impact resistance of the battery casing's end face and increasing the protection of the internal battery cells. Simultaneously, a support member is positioned along the Z-direction between the reinforcing member and the liquid cooling section, with a gap between the area of ​​the liquid cooling section not in contact with the support member and the reinforcing member. This arrangement reduces the contact area between the protective plate and the reinforcing member and the liquid cooling section, minimizing heat loss through heat conduction from the liquid cooling section to the outside. Furthermore, it reduces the impact of vibrations on the liquid cooling section during operation, thus reducing component damage. Additionally, when the protective plate encounters impacts from foreign objects such as stones, the protective section and the reinforcing member have a certain crumple zone to protect the liquid cooling section and the battery cells. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a structural diagram of a battery housing provided in a preferred embodiment of this application;

[0031] Figure 2 for Figure 1 Exploded view of the battery box shown;

[0032] Figure 3 for Figure 1 A cross-sectional view of the battery housing shown;

[0033] Figure 4 for Figure 3 Enlarged view of point A on the battery box shown in the diagram;

[0034] Figure 5 for Figure 1 Another exploded view of the battery compartment shown;

[0035] Figure 6 for Figure 1 The structural diagram of the battery box's protective plate and reinforcing components is shown.

[0036] Figure 7 for Figure 1 The diagram shows the structure of the reinforcing member of the battery housing.

[0037] Figure 8 for Figure 1 The diagram shows the structural design of the side beams of the battery box.

[0038] Figure 9 for Figure 1 Another cross-sectional view of the battery compartment shown;

[0039] Figure 10 for Figure 9 Enlarged view of section B of the battery box shown;

[0040] Figure 11 for Figure 1 Another exploded view of the battery compartment shown.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100. Battery housing; 10. Housing frame; 11. Opening; 12. End beam; 121. First beam; 122. Second beam; 13. Side beam; 131. Main body; 132. Horizontal rib; 133. Reinforcing part; 14. Inner cavity; 141. Mounting cavity; 20. Protective plate; 21. First connecting part; 22. Protective part; 30. Liquid cooling plate; 31. Second connecting part; 32. Liquid cooling part; 40. Reinforcing member; 41. Third connecting part; 42. Arched part; 43. Weight reduction hole; 50. Support member; 60. Reinforcing beam; 70. Lifting lug; 80. Fastener; 81. Fastening screw; 82. Nut; 90. Crossbeam; 110. Longitudinal beam. Detailed Implementation

[0043] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0049] See Figure 1 and Figure 2 One embodiment of this application provides a battery housing 100, which includes a frame 10. The frame 10 includes an inner cavity 14 and openings 11 located on both sides of the frame 10 along the Z direction and communicating with the inner cavity 14. Specifically, the frame 10 is a hollow cuboid structure, and the Z direction is the height direction of the frame 10.

[0050] The battery housing 100 also includes a protective plate 20, which includes a first connecting portion 21 and a protective portion 22. The protective plate 20 is connected to the housing frame 10 via the first connecting portion 21 to block the opening 11 on one side of the housing frame 10 along the Z direction. The protective portion 22 corresponds to the inner cavity 14. Specifically, the edge portion of the protective plate 20 forms the first connecting portion 21, and the middle portion forms the protective portion 22. The first connecting portion 21 surrounds the protective portion 22. The inner cavity 14 is used to install battery cells. Since the protective portion 22 corresponds to the inner cavity 14, it protects the battery cells in the inner cavity 14. Optionally, the protective plate 20 is the bottom plate of the battery housing 100.

[0051] The battery housing 100 also includes a liquid cooling plate 30, which includes a second connecting portion 31 and a liquid cooling portion 32. The liquid cooling plate 30 is connected to the housing frame 10 via the second connecting portion 31 and is disposed along the Z direction on the side of the protective plate 20 near the other opening 11. The liquid cooling portion 32 corresponds to the position of the protective portion 22. Specifically, the edge portion of the liquid cooling plate 30 forms the second connecting portion 31, and the middle portion forms the liquid cooling portion 32, with the second connecting portion 31 surrounding the liquid cooling portion 32. Since the liquid cooling portion 32 corresponds to the position of the protective portion 22, the liquid cooling portion 32 also corresponds to the position of the inner cavity 14. Furthermore, since the liquid cooling plate 30 is disposed along the Z direction on the side of the protective plate 20 near the other opening 11, when a battery cell is installed in the inner cavity 14, the liquid cooling plate 30 is positioned closer to the battery cell than the protective plate 20 to facilitate heat exchange with the battery cell and temperature control. Generally, the liquid cooling section 32 is provided with a liquid cooling channel, in which the cooling medium can circulate and exchange heat with the battery cell, thereby cooling the battery cell.

[0052] Further reading Figures 2-4The battery housing 100 also includes a reinforcing member 40 and a supporting member 50. The reinforcing member 40 is disposed on the protective portion 22 and located between the liquid-cooled portion 32 and the protective portion 22. Specifically, the protective portion 22 is flat, and the reinforcing member 40 protrudes from the protective portion 22. The supporting member 50 protrudes from the side of the reinforcing member 40 facing away from the protective portion 22 along the Z-direction and abuts against the reinforcing member 40 and the liquid-cooled plate 30. A gap exists between the area of ​​the liquid-cooled portion 32 that does not abut against the supporting member 50 and the reinforcing member 40. That is, the supporting member 50 protrudes from the side of the reinforcing member 40 facing away from the protective portion 22 along the Z-direction and abuts against the reinforcing member 40 and the liquid-cooled plate 30 along the Z-direction, and a gap exists between the area of ​​the liquid-cooled portion 32 that does not abut against the supporting member 50 and the reinforcing member 40 along the Z-direction.

[0053] It should be noted that the gap in the Z-direction between the area of ​​the liquid cooling part 32 that does not abut against the support member 50 and the reinforcing member 40 means that the support member 40 is present in a part of the reinforcing member 40. Since the reinforcing member 40 is located on the protective part 22 and the liquid cooling part 32 is positioned corresponding to the protective part 22, there must be an area in the liquid cooling part 32 that does not abut against the support member 50. Therefore, there is a gap between the area of ​​the liquid cooling part 32 that does not abut against the support member 50 and the reinforcing member 40.

[0054] The battery housing 100 provided in this embodiment has a reinforcing member 40 on the side of the protective part 22 facing the liquid cooling part 32 along the Z direction. The reinforcing member 40, combined with the protective plate 20, can improve the protective strength of the battery housing 100 at one end along the Z direction, that is, improve the impact resistance of the end face of the battery housing 100, thereby increasing the protective effect of the battery housing 100 on the internal battery cells. At the same time, the supporting member 50 is abutted between the reinforcing member 40 and the liquid cooling part 32 along the Z direction, and there is a gap between the area of ​​the liquid cooling part 32 that does not abut against the supporting member 50 and the reinforcing member 40. This design serves several purposes. First, it reduces the contact area between the protective plate 20 and the reinforcing member 40 and the liquid cooling section 32, thereby reducing the heat loss from the liquid cooling section 32 to the outside environment through the protective plate 20 and the reinforcing member 40. Second, it reduces the impact of the protective plate 20 and the reinforcing member 40 on the liquid cooling section 32 during operation, thus reducing damage to the components. Third, when the protective plate 20 is struck by foreign objects such as stones, it provides a certain amount of crumple space for the protective section 22 and the reinforcing member 40 to protect the liquid cooling section 32 and the battery cell.

[0055] Generally, not all areas of the protective part 22 are equipped with reinforcing members 40. There is also a gap in the Z direction between the liquid cooling part 32 and the area of ​​the protective part 22 where there are no reinforcing members 40. This arrangement can further reduce heat loss and damage to parts, and provide stronger protection for the liquid cooling part 32 and the battery cell.

[0056] In some embodiments, see further reference. Figure 2The frame 10 has a connecting end face in the Z direction. The second connecting part 31 is clamped between the first connecting part 21 and the connecting end face. Fixing screws pass through the first connecting part 21, the second connecting part 31, and the frame 10 to achieve a fixed connection between the protective plate 20, the liquid cooling plate 30, and the frame 10. It should be understood that in some other embodiments, the first connecting part 21 and the second connecting part 31 can also be connected to the frame 10 in other ways, such as welding.

[0057] In some embodiments, see Figure 1 and Figure 5 The battery housing 100 also includes a crossbeam 90 and a longitudinal beam 110. The longitudinal beam 110 extends along the X direction, and the crossbeam 90 extends along the Y direction. The crossbeam 90 and the longitudinal beam 110 divide the inner cavity 14 into multiple mounting cavities 141, each of which is used to mount battery modules. Each battery module includes multiple battery cells. The X direction is the length direction of the housing 10, and the Y direction is the width direction of the housing 10. Thus, multiple battery modules can be mounted in the battery housing 100.

[0058] Further reading Figure 2 and Figure 5 Each mounting cavity 141 is equipped with a corresponding reinforcing member 40. That is, when a battery module is installed inside the battery housing 100, a reinforcing member 40 is provided at the position of each battery module. In this way, when the protective plate 20 is impacted, since each reinforcing member 40 is provided at the position of each mounting cavity 141, each reinforcing member 40 can protect the corresponding battery module, further improving the protection effect of the battery cell.

[0059] For some specific implementation methods, please refer to [link / reference]. Figure 5 The battery housing 100 includes a crossbeam 90 and a longitudinal beam 110. The crossbeam 90 is located at the center of the inner cavity 14 along the X direction, and the longitudinal beam 110 is located at the center of the inner cavity 14 along the Y direction. Thus, the inner cavity 14 is divided into four mounting cavities 141 by the crossbeam 90 and the longitudinal beam 110, allowing four battery modules to be installed within the battery housing 100. The battery housing 100 includes four reinforcing members 40, such that each battery module corresponds to one reinforcing member 40.

[0060] It should be understood that in some other embodiments, the number of crossbeams 90 and longitudinal beams 110 included in the battery housing 100 is not limited, and therefore the number of mounting cavities 141 formed by dividing the inner cavity 14 is also not limited and can be determined as needed. At the same time, the number of reinforcing members 40 is adapted to change depending on the number of mounting cavities 141.

[0061] In some embodiments, the reinforcing member 40 is a reinforcing plate disposed on the protective part 22, and the reinforcing plate is an integrally formed structure, which facilitates the processing and manufacturing of the reinforcing member 40. It is conceivable that in other embodiments, the reinforcing member 40 may also adopt other configuration methods, such as the reinforcing member 40 may also be a reinforcing rib disposed on the protective part 22.

[0062] Further reading Figure 6 and Figure 7 The reinforcing member 40 includes a third connecting portion 41 and an arched portion 42 that are interconnected. The third connecting portion 41 fits against the protective portion 22 along the Z direction, and the arched portion 42 arches along the Z direction toward the side away from the protective portion 22. The supporting member 50 protrudes from the arched portion 42. The third connecting portion 41 facilitates the connection between the reinforcing member 40 and the protective portion 22. There is a certain gap between the arched portion 42 and the protective portion 22. When the protective plate 20 is impacted, the gap can play a certain buffering role.

[0063] Specifically, along the X direction, the arched portion 42 is connected between adjacent third connecting portions 41 to make the reinforcing plate have a wavy structure. The wavy reinforcing plate has greater strength than a flat plate, which can further increase the impact resistance of the end face of the battery box 100 and reduce damage to the battery cells inside the battery box 100.

[0064] It is understood that in some other embodiments, the shape of the reinforcing plate is not limited, and the reinforcing plate may be set as a flat plate structure.

[0065] Continue reading Figure 7 The reinforcing member 40 is provided with weight-reducing holes 43 to reduce the weight of the reinforcing member 40, thereby reducing the weight of the entire battery box 100. Of course, in some other embodiments, the weight-reducing holes 43 may be omitted from the reinforcing member 40, which is not limited here.

[0066] In some embodiments, see further reference. Figure 5 The box frame 10 includes two end beams 12 and two side beams 13. The two ends of the two side beams 13 are connected to the two end beams 12 respectively, forming the box frame 10. Specifically, the two end beams 12 are beams located at both ends of the box frame 10 along the X direction, and the two side beams 13 are beams located at both ends of the box frame 10 along the Y direction. In some specific embodiments, one end beam 12 includes a first beam 121 and a second beam 122 spaced apart from each other. The second beam 122 is located inside the first beam 121. The two side beams 13 are connected to both the first beam 121 and the second beam 122. The other end beam 12, the two side beams 13, and the second beam 122 together form the inner cavity 14.

[0067] It is conceivable that in other embodiments, one of the end beams 12 may only include the second beam 122 and omit the first beam 121, or only include the first beam 121 and omit the second beam 122. In this case, the inner cavity 14 is formed by the other end beam 12, the two side beams 13 and the first beam 121.

[0068] Further reading Figures 8-10 Each side beam 13 includes a main body 131, a transverse rib 132, and a reinforcing part 133. The main body 131 extends along the X direction and is connected to two end beams 12 at both ends. At least one transverse rib 132 extends along the X direction and is disposed in the internal cavity of the main body 131. The reinforcing part 133 is disposed on the outer side of the main body 131 along the Y direction and extends along the X direction. It should be noted that the side of the main body 131 facing the battery cell is the inner side, and the side away from the battery cell is the outer side.

[0069] With the above configuration, the main body 131 of the side beam 13 is provided with a transverse rib 132, and the outer side of the main body 131 is also provided with a reinforcing part 133, which makes the side beam 13 have high strength and high compression resistance, which can reduce the deformation of the side beam 13 when it is compressed, thereby reducing the risk of the side beam 13 deforming and squeezing the internal battery cell.

[0070] Specifically, the main body 131 is provided with a plurality of transverse ribs 132, which are arranged sequentially along the Z direction. The height of the reinforcing part 133 in the Z direction covers the part of the main body 131 where the transverse ribs 132 are located. In this way, the location of the transverse ribs 132 in the main body 131 is correspondingly provided with a reinforcing part 133 in the Y direction. When the location of the reinforcing part 133 in the side beam 13 is compressed, the side beam 13 is not easily deformed because the main body 131 inside it is provided with transverse ribs 132.

[0071] In some embodiments, see further reference. Figure 10 The reinforcing section 133 is a hollow structure. The battery housing 100 also includes reinforcing beams 60, with each reinforcing section 133 having a reinforcing beam 60 inside its cavity, extending along the X direction. By providing reinforcing beams 60 inside the reinforcing sections 133, the strength of the side beams 13 can be further improved, enhancing their resistance to deformation, thereby improving the side protection capability of the battery housing 100 and protecting the battery cells inside the battery housing frame 10.

[0072] In some embodiments, see Figure 10 and Figure 11The battery housing 100 also includes a lifting lug 70, with each reinforcing part 133 having a lifting lug 70 on its outer side along the Y direction. The lifting lug 70 is detachably connected to the reinforcing part 133 and the reinforcing beam 60 via fasteners 80. Because the lifting lug 70 is detachably connected to the reinforcing part 133 and the reinforcing beam 60, it is convenient to adjust the position of the lifting lug 70 on the battery housing 100 to adapt to vehicle models with different installation point positions.

[0073] Specifically, each reinforcing part 133 has multiple lifting lugs 70 spaced apart along the X direction on its outer side. In this way, the battery box 100 is connected to the vehicle through a large number of lifting lugs 70, ensuring a secure connection.

[0074] In some specific embodiments, each reinforcing part 133 has five lifting lugs 70 on its outer side, so that the battery box 100 is connected to the vehicle through ten lifting lugs 70, ensuring the connection effect. It is conceivable that in other embodiments, the number of lifting lugs 70 provided on each reinforcing part 133 is not limited, such as the number of lifting lugs 70 on the outer side of each reinforcing part 133 can be 1, 2, 3, 4 or more than 5.

[0075] Continue reading Figure 10 The fastener 80 includes a fastening screw 81 and a nut 82. The fastening screw 81 passes through the lug 70, the reinforcing part 133, and the reinforcing beam 60. The nut 82 is screwed onto the fastening screw 81 to lock the lug 70, the reinforcing part 133, and the reinforcing beam 60 together. The fastening screw 81 and nut 82 not only connect and fix the lug 70, the reinforcing part 133, and the reinforcing beam 60, but also facilitate the removal of the lug 70 from the reinforcing part 133 and the reinforcing beam 60 to change the position of the lug 70 relative to the side beam 13 in the X direction, so as to adapt the battery box 100 to the installation of different vehicle models.

[0076] It is understood that in some other embodiments, the arrangement of the fastener 80 is not limited, as long as the arrangement of the lug 70 can be detachably connected to the reinforcing part 133 and the reinforcing beam 60.

[0077] Another embodiment of this application also provides a battery, including the battery housing 100 described above. Since the battery housing 100 has beneficial effects, the battery including the battery housing 100 has the same beneficial effects, which will not be described in detail here.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A battery housing, characterized in that, The battery housing (100) includes: The box frame (10) includes an inner cavity (14) and openings (11) located on both sides of the box frame (10) along the Z direction and communicating with the inner cavity (14), wherein the Z direction is the height direction of the box frame (10); The protective plate (20) includes a first connecting part (21) and a protective part (22). The protective plate (20) is connected to the box frame (10) through the first connecting part (21) to block the opening (11) of the box frame (10) along the Z direction. The protective part (22) is positioned opposite to the inner cavity (14). The liquid cooling plate (30) includes a second connecting part (31) and a liquid cooling part (32). The liquid cooling plate (30) is connected to the box frame (10) through the second connecting part (31) and is disposed along the Z direction on the side of the protective plate (20) near the other opening (11). The liquid cooling part (32) is positioned opposite to the protective part (22). A reinforcing member (40) is provided on the protective part (22) and located between the liquid cooling part (32) and the protective part (22); The support member (50) protrudes from the side of the reinforcing member (40) away from the protective part (22) along the Z direction and abuts between the reinforcing member (40) and the liquid cooling plate (30). There is a gap between the area of ​​the liquid cooling part (32) that does not abut against the support member (50) and the reinforcing member (40).

2. The battery housing according to claim 1, characterized in that, The reinforcing member (40) is a reinforcing plate provided on the protective part (22), and the reinforcing plate is an integrally formed structure.

3. The battery housing according to claim 2, characterized in that, The reinforcing member (40) includes a third connecting part (41) and an arched part (42) that are connected to each other. The third connecting part (41) is attached to the protective part (22) along the Z direction. The arched part (42) arches along the Z direction toward the side away from the protective part (22). The supporting member (50) protrudes from the arched part (42).

4. The battery housing according to claim 3, characterized in that, Along the X direction, the arched portion (42) is connected between two adjacent third connecting portions (41) so that the reinforcing plate has a wavy structure; The X direction is the length direction of the box frame (10).

5. The battery housing according to claim 1, characterized in that, The battery housing (100) also includes a crossbeam (90) and a longitudinal beam (110) disposed in the inner cavity (14). The longitudinal beam (110) extends along the X direction, and the crossbeam (90) extends along the Y direction. The crossbeam (90) and the longitudinal beam (110) divide the inner cavity (14) into a plurality of mounting cavities (141) for mounting battery modules respectively. The X direction is the length direction of the housing frame (10), and the Y direction is the width direction of the housing frame (10). Each of the mounting cavities (141) is provided with a corresponding reinforcement member (40).

6. The battery housing according to any one of claims 1-5, characterized in that, The box frame (10) includes two end beams (12) and two side beams (13). The two ends of the two side beams (13) are respectively connected to the two end beams (12) to form the box frame (10). Each of the side beams (13) includes a main body (131), a transverse rib (132), and a reinforcing part (133). The two ends of the main body (131) are respectively connected to two end beams (12). At least one of the transverse ribs (132) extends along the X direction and is disposed in the internal cavity of the main body (131). The reinforcing part (133) is disposed on the outside of the main body (131) along the Y direction and extends along the X direction. The X direction is the length direction of the box frame (10), and the Y direction is the width direction of the box frame (10).

7. The battery housing according to claim 6, characterized in that, The reinforcing part (133) is a hollow structure; The battery housing (100) also includes a reinforcing beam (60), and the reinforcing beam (60) is provided in the cavity of each reinforcing part (133), and the reinforcing beam (60) extends along the X direction.

8. The battery housing according to claim 7, characterized in that, The battery box (100) also includes a lifting lug (70), and each of the reinforcing parts (133) is provided with the lifting lug (70) on the outer side along the Y direction. The lifting lug (70) is detachably connected to the reinforcing part (133) and the reinforcing beam (60) by fasteners (80).

9. The battery housing according to claim 8, characterized in that, The fastener (80) includes a fastening screw (81) and a nut (82). The fastening screw (81) passes through the lug (70), the reinforcing part (133), and the reinforcing beam (60). The nut (82) is screwed onto the fastening screw (81) to lock the lug (70), the reinforcing part (133), and the reinforcing beam (60). and / or Each of the reinforcing parts (133) has a plurality of lugs (70) spaced apart along the X direction on its outer side.

10. A battery, characterized in that, Includes the battery housing (100) as described in any one of claims 1-9.

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