Battery box, battery pack and vehicle

Abstract

The present disclosure relates to a battery box, a battery pack and a vehicle, the battery box comprising a tray body, a partition beam and an encapsulation cover, the partition beam comprising at least two beam bodies, two of the at least two beam bodies being fixed to the tray body and the encapsulation cover respectively, and any two adjacent ones of the at least two beam bodies being connected to each other. Through the above technical solution, the battery box provided by the present disclosure can improve the overall modal stiffness of the battery pack.

Description

Technical Field

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

[0002] In related technologies, due to the low modal stiffness of the battery pack as a whole, when the battery pack is subjected to lateral compression or collision, it is easy for the individual battery cells inside the battery pack to experience thermal runaway, which affects the safety of battery use. Utility Model Content

[0003] The purpose of this disclosure is to provide a battery housing, a battery pack, and a vehicle, wherein the battery housing can improve the overall modal stiffness of the battery pack.

[0004] According to a first aspect of this disclosure, a battery housing is provided, the battery housing including a tray body, a partition beam and a sealing cover, the partition beam including at least two beam segments, two of the at least two beam segments being respectively fixed to the tray body and the sealing cover, and any two adjacent of the at least two beam segments being interconnected.

[0005] Through the above technical solution, in the battery box provided in this disclosure, at least two beam segments are respectively fixed to the tray body and the encapsulation cover, and any two adjacent beam segments are interconnected. That is, a beam segment is fixed on the tray body, and a beam segment is also fixed on the encapsulation cover. The beam segment fixed to the tray body can be directly or indirectly connected to the beam segment fixed to the encapsulation cover. Therefore, the tray body can be connected to the encapsulation cover through the interconnection of multiple beam segments. In this way, the weight and external force of the tray body and the tray body can be transferred to the encapsulation cover through the partition beam. That is, the above design makes the battery box have a force transmission path from the tray body through the partition beam to the encapsulation cover, which is beneficial for absorbing and dispersing external forces through the encapsulation cover and improving the overall modal stiffness of the battery pack.

[0006] In some possible implementations, the tray body includes a base plate and two opposing side beams, wherein at least one of the beam segments is fixed to the base plate and connected to the two side beams, or at least one of the beam segments is fixed to the two side beams and connected to the base plate. This allows at least one of the beam segments to connect to the two side beams and the base plate, enabling the two side beams to be connected to the sealing cover via a partition beam. This facilitates the transfer of external forces on the side beams to the sealing cover via the partition beam; that is, the above design increases the force transmission path from the side beams through the partition beam to the sealing cover.

[0007] In some possible implementations, an insertion space is formed between the side beam and the base plate. A beam body fixed to the base plate or the side beam is provided with an insertion arm, which inserts into the insertion space and connects to the side beam. In this implementation, the insertion of the insertion arm into the insertion space facilitates positioning the beam body relative to the side beam, thereby improving assembly reliability.

[0008] In some possible implementations, the plug arm is bonded to the side beam via a first adhesive.

[0009] In some possible implementations, the side beam includes a beam body and an abutment portion, the abutment portion being connected to the beam body and forming the insertion space between it and the base plate.

[0010] In some possible implementations, at least two of the beam segments are integrally formed with the tray body and the packaging cover, respectively. This increases the structural strength of the tray body and the packaging cover.

[0011] In some possible implementations, a positioning structure is provided between at least two connected beam segments. The positioning structure includes a positioning protrusion and a positioning groove. One of the connected beam segments has the positioning protrusion, and the other has the positioning groove, with the positioning protrusion embedded in the positioning groove. This facilitates positioning of the beam segment relative to adjacent beam segments, thereby improving assembly reliability.

[0012] In some possible implementations, the beam has mating end faces, the positioning protrusions protrude from the mating end face of one beam toward another, and the positioning grooves recess from the mating end face of one beam away from the other. The mating end faces of the two connected beam segments fit together, and the two mating end faces, as well as the positioning protrusions and positioning grooves, are respectively bonded together by second adhesives. In this implementation, the design of the positioning protrusions and positioning grooves increases the area of ​​the mating end faces, providing more area for applying the second adhesive, thereby strengthening the bond strength between adjacent beam segments.

[0013] In some possible implementations, the separator beam comprises three beam segments, two of which are respectively fixed to the tray body and the encapsulation cover, and the third segment has two opposing assembly surfaces, each provided with a third adhesive element for bonding to the battery cell. In this way, the beam segment bonded to the battery cell can be connected to the tray body and the encapsulation cover via the connections between the multiple beam segments, allowing the battery cell, separator beam, tray body, and encapsulation cover to be integrated into a single unit, thereby improving the overall integrity of the battery cell, separator beam, encapsulation cover, and tray body.

[0014] In some possible implementations, the partition beam comprises two beam sections, each fixed to the tray body and the packaging cover, respectively, with a filling space between the two beam sections. This filling space is used to fill the space with adhesive, which bonds the tray body, the packaging cover, and the two beam sections together. In this way, the adhesive can form a unified whole with the tray body, the packaging cover, and the two beam sections, thereby improving the reliability of the connection between the tray body and the packaging cover.

[0015] In some possible implementations, at least one of the two beam sections is provided with a protrusion or a recess, the surface of which is in contact with the adhesive. This increases the bonding area between the beam and the adhesive, thereby increasing the bond strength between the beam and the adhesive.

[0016] According to a second aspect of this disclosure, a battery pack is provided, the battery pack including the aforementioned battery housing and a plurality of battery cells, the plurality of battery cells being arranged in the tray body and separated into two battery groups by the partition beam.

[0017] According to a third aspect of this disclosure, a vehicle is provided, the vehicle including the aforementioned battery pack.

[0018] In some possible implementations, the vehicle includes a body, and the encapsulation cover is integrally formed with the body. This allows the weight of the battery pack and the external forces it experiences to be transferred to the body, thereby dispersing and absorbing the forces transmitted from the battery pack through the body, thus improving the overall modal stiffness of the battery pack.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Other features and advantages of this disclosure will be described in detail in the subsequent detailed description section. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure: Figure 1 This is an exploded view of the battery pack provided in the first exemplary embodiment of this disclosure; Figure 2 This is a partial perspective view of the battery pack provided in the first exemplary embodiment of this disclosure; Figure 3 This is a cross-sectional view of the battery pack provided in the first exemplary embodiment of this disclosure; Figure 4 yes Figure 3 Enlarged view of point A in the image; Figure 5This is an exploded view of the battery pack provided in the second exemplary embodiment of this disclosure; Figure 6 This is a cross-sectional view of the battery pack provided in the second exemplary embodiment of this disclosure; Figure 7 yes Figure 6 Enlarged view of point B in the image; Figure 8 This is a cross-sectional view of the battery pack provided in the third exemplary embodiment of this disclosure; Figure 9 yes Figure 8 Enlarged view of point C in the image; Figure 10 This is a longitudinal sectional view of the battery pack provided in an exemplary embodiment of this disclosure.

[0021] Explanation of reference numerals in the attached figures 1. Tray body; 11. Base plate; 12. Side beam; 121. Beam body; 122. Abutment part; 2. Separator beam; 21. Beam body; 211. Insertion arm; 212. Mating end face; 213. Assembly surface; 214. Protrusion; 3. Encapsulation cover; 4. Insertion space; 51. First adhesive component; 52. Second adhesive component; 53. Third adhesive component; 6. Positioning structure; 61. Positioning protrusion; 62. Positioning groove; 7. Battery cell; 8. Adhesive. Detailed Implementation

[0022] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0023] In this disclosure, unless otherwise stated, terms such as "first," "second," etc., used are for distinguishing one element from another and do not have sequential or material significance. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0024] According to the first aspect of this disclosure, reference to Figures 1 to 9 As shown, a battery housing is provided. The battery housing includes a tray body 1, a partition beam 2 and a sealing cover 3. The partition beam 2 includes at least two beam sections 21. Two of the at least two beam sections 21 are respectively fixed to the tray body 1 and the sealing cover 3, and any two adjacent beam sections 21 are connected to each other.

[0025] Through the above technical solution, in the battery box provided in this disclosure, at least two of the two beam segments 21 are respectively fixed to the tray body 1 and the encapsulation cover 3, and any two adjacent beam segments 21 are interconnected. That is, a beam segment 21 is fixed on the tray body 1, and a beam segment 21 is also fixed on the encapsulation cover 3. The beam segment 21 fixed to the tray body 1 can be directly or indirectly connected to the beam segment 21 fixed to the encapsulation cover 3. Therefore, the tray body 1 can be connected to the encapsulation cover 3 through the interconnection between multiple beam segments 21. In this way, the weight and external force of the tray body 1 and the tray body 1 can be transmitted to the encapsulation cover 3 through the partition beam 2. That is, the above design makes the battery box have a force transmission path from the tray body 1 through the partition beam 2 to the encapsulation cover 3, which is beneficial for absorbing and dispersing external forces through the encapsulation cover 3 and improving the overall modal stiffness of the battery pack.

[0026] Among them, the beam 21 fixed to the packaging cover 3 can enhance the structural strength of the packaging cover 3 itself, which is conducive to improving the processing and manufacturing yield of the packaging cover 3 and saving costs; similarly, the beam 21 fixed to the tray body 1 can also enhance the structural strength of the tray body 1.

[0027] In the battery housing provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 10 As shown, the tray body 1 includes a base plate 11 and two opposing side beams 12. At least one of the two beam segments 21 is fixed to the base plate 11 and connected to the two side beams 12, or at least one of the two beam segments 21 is fixed to the two side beams 12 and connected to the base plate 11. This allows at least one of the two beam segments 21 to connect to the two side beams 12 and the base plate 11, forming an integral structure with good overall integrity. Furthermore, the beam segments 21 in this integral structure can be directly connected to the beam segment 21 fixed to the encapsulation cover 3, or connected to the beam segment 21 fixed to the encapsulation cover 3 via other beam segments 21, thus connecting the integral structure to the encapsulation cover 3. This allows the weight of the integral structure and the external forces it bears to be transferred to the encapsulation cover 3, increasing the force transmission path and thereby improving the overall modal stiffness of the battery pack. Simultaneously, the encapsulation cover 3 can also be used to disperse and absorb external forces at a specific point in the integral structure.

[0028] In the battery housing provided in this disclosure, as an exemplary embodiment, an insertion space 4 is formed between the side beam 12 and the base plate 11. The beam 21 fixed to the base plate 11 or the side beam 12 is provided with an insertion arm 211, which is inserted into the insertion space 4 and connected to the side beam 12. This insertion of the insertion arm 211 into the insertion space 4 facilitates the positioning of the beam 21 relative to the side beam 12 and the base plate 11, thereby improving assembly reliability.

[0029] In the battery housing provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 10 As shown, the plug-in arm 211 is bonded to the side beam 12 via the first adhesive member 51. In other embodiments, the plug-in arm 211 and the side beam 12 may also be connected by other suitable means, and this disclosure does not impose any specific limitations on this.

[0030] In the battery housing provided in this disclosure, the aforementioned insertion space 4 can be formed in any suitable manner. As an exemplary embodiment, refer to... Figure 10 As shown, the side beam 12 includes a beam body 121 and an abutment portion 122. The abutment portion 122 is connected to the beam body 121 and forms an insertion space 4 between it and the base plate 11. In this embodiment, the beam body 21 fixed to the base plate 11 is provided with an insertion arm 211. The insertion arm 211 is inserted into the insertion space 4 and connected to the abutment portion 122 and the beam body 121. In this way, the insertion arm 211 of the beam body 21 can contact not only the beam body 121 but also the abutment portion 122. That is, the design of the abutment portion 122 increases the contact area between the beam body 21 and the side beam 12, thereby improving the connection reliability between the beam body 21 and the side beam 12, and thus improving the connection reliability between the base plate 11 and the side beam 12.

[0031] In this embodiment, reference Figure 10 As shown, the encapsulation cover 3 overlaps with the abutment portion 122 and is connected to the abutment portion 122 by sealant. This design of the abutment portion 122 increases the contact area between the encapsulation cover 3 and the side beam 12, thereby improving the connection reliability between the encapsulation cover 3 and the side beam 12. Furthermore, since the encapsulation cover 3 and the abutment portion 122 are connected by sealant, the sealing of the battery box is ensured, thereby guaranteeing the performance of the individual battery cells housed within the battery box. In other embodiments, the encapsulation cover 3 may also overlap with the beam body 121 and be connected to the beam body 121 by sealant; this disclosure does not impose specific limitations on this.

[0032] As another exemplary embodiment, the side beam 12 and the base plate 11 can be spaced apart to form the aforementioned insertion space 4 between the side beam 12 and the base plate 11. The beam body 21 fixed to the base plate 11 is provided with an insertion arm 211, which is inserted into the insertion space 4 and connected to the side beam 12. Alternatively, the beam body 21 fixed to the side beam 12 is provided with an insertion arm 211, which is inserted into the insertion space 4 and connected to the base plate 11.

[0033] As another exemplary embodiment, the base plate 11 itself forms an insertion space 4, wherein the beam 21 fixed to the side beam 12 is provided with an insertion arm 211, which is inserted into the insertion space 4 and connected to the base plate 11.

[0034] In the battery housing provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 1, Figure 2 and Figure 5 As shown, at least two beam segments 21 are integrally formed on the tray body 1 and the packaging cover 3, respectively. Thus, the beam segment 21 provided on the tray body 1 increases the structural strength of the tray body 1, and the beam segment 21 provided on the packaging cover 3 increases the structural strength of the packaging cover 3. The beam segment 21 formed on the tray body 1 can be directly connected to the beam segment 21 formed on the packaging cover 3, or the beam segment 21 formed on the tray body 1 can be connected to the beam segment 21 formed on the packaging cover 3 via other beam segments 21 or the adhesive 8 described below; this disclosure does not impose specific limitations in this regard. In other embodiments, at least two beam segments 21 can also be fixedly connected to the tray body 1 and the packaging cover 3 by other suitable means; this disclosure does not impose specific limitations in this regard.

[0035] In the battery housing provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 1 as well as Figures 3 to 7 As shown, a positioning structure 6 is provided between at least two connected beam segments 21. The positioning structure 6 includes a positioning protrusion 61 and a positioning groove 62. One of the connected beam segments 21 is provided with the positioning protrusion 61, and the other is provided with the positioning groove 62. The positioning protrusion 61 is embedded in the positioning groove 62. In this way, it is convenient to position the beam segment 21 relative to the adjacent beam segment 21, thereby improving the assembly reliability.

[0036] In the battery housing provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 1 as well as Figures 3 to 7 As shown, beam 21 has a mating end face 212. A positioning protrusion 61 protrudes from the mating end face 212 of the corresponding beam 21 toward another beam 21. A positioning groove 62 is recessed from the mating end face 212 of the corresponding beam 21 away from the other beam 21. The mating end faces 212 of the two connected beam segments 21 fit together, and the two mating end faces 212 and the positioning protrusion 61 and positioning groove 62 are respectively bonded together by a second adhesive 52. In this way, the design of the positioning protrusion 61 and the positioning groove 62 can increase the area of ​​the mating end face 212, so that the mating end face 212 has more bonding area for applying the second adhesive 52, thereby strengthening the bonding strength between the two adjacent beam segments 21. The beam 21 may be provided with a positioning protrusion 61, which extends along the extension direction of the beam 21. This can further increase the bonding area of ​​the mating end face 212. Alternatively, the beam 21 may be provided with at least two positioning protrusions 61, which are arranged at intervals along the extension direction of the beam 21. This can also locate the relative position between adjacent beams 21 along the extension direction of the beam 21. This disclosure does not impose any specific limitations on this.

[0037] In the battery housing provided in this disclosure, the beams 21 can be configured in any suitable number. As a first exemplary embodiment, refer to... Figures 3 to 4 As shown, the partition beam 2 includes two beam sections 21, which are respectively fixed to the tray body 1 and the packaging cover 3. The beam section 21 fixed to the packaging cover 3 has a positioning protrusion 61 on its mating end face 212 and a positioning groove 62 on its mating end face 212 fixed to the tray body 1. The mating end faces 212 of the two beam sections 21 fit together, and the two mating end faces 212 and the positioning protrusion 61 and the positioning groove 62 are respectively bonded together by the second adhesive 52.

[0038] As a second exemplary embodiment, refer to Figures 6 to 7 As shown, the partition beam 2 includes three beam sections 21, two of which are fixed to the tray body 1 and the encapsulation cover 3 respectively, and the other beam section 21 is bonded to the battery cell 7 and arranged between the two beam sections 21. The beam section 21 fixed to the encapsulation cover 3 has a positioning protrusion 61 (denoted as the first protrusion) on its mating end face 212, and the beam section 21 fixed to the tray body 1 also has a positioning protrusion 61 (denoted as the second protrusion) on its mating end face 212. The beam section 21 bonded to the battery cell 7 has two mating end faces 212 facing the other two beam sections 21 respectively. The two mating end faces 212 are respectively provided with two positioning grooves 62 that mate with the first protrusion and the second protrusion. The mating end faces 212 of any two adjacent beam sections 21 are in contact with each other, and the two adjacent mating end faces 212 and the positioning protrusion 61 and the positioning groove 62 are respectively bonded and connected by a second adhesive member 52.

[0039] In the battery housing provided in this disclosure, as an exemplary embodiment, reference is made to... Figures 5 to 7 As shown, the partition beam 2 comprises three beam sections 21. Two of these sections are fixed to the tray body 1 and the encapsulation cover 3, respectively. The third section has two opposing assembly surfaces 213, each with a third adhesive element 53 for bonding to the battery cell 7. The beam section 21 bonded to the battery cell 7 is positioned between and bonded to the other two sections. That is, the beam section 21 bonded to the battery cell 7 can be connected to the beam section 21 fixed to the tray body 1, and also to the beam section 21 fixed to the encapsulation cover 3. This facilitates the transfer of the weight of the battery cell 7 and the external forces it bears to the tray body 1 and the encapsulation cover 3, thereby improving the overall modal stiffness of the battery pack. Furthermore, this design also enhances the overall integrity of the battery cell 7, the partition beam 2, the encapsulation cover 3, and the tray body 1.

[0040] In the battery housing provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 8 and Figure 9 As shown, the separator beam 2 includes two beam sections 21, which are respectively fixed to the tray body 1 and the encapsulation cover 3. A filling space is provided between the two beam sections 21, which is used to fill the space with adhesive 8. The adhesive 8 is used to bond the tray body 1, the encapsulation cover 3, and the two beam sections 21 together. Two sets of battery packs are also accommodated between the bottom plate 11 of the tray body 1 and the encapsulation cover 3. Each battery pack includes multiple arrayed battery cells 7. The two battery packs, the tray body 1, and the encapsulation cover 3 together enclose the aforementioned filling space. Thus, the adhesive 8 contained in the filling space can bond the tray body 1 and its beam sections 21, the encapsulation cover 3 and its beam sections 21, and the two battery packs into a whole, improving the overall integrity of the battery pack. Furthermore, the adhesive 8 can connect the beam sections 21 fixed to the tray body 1 and the beam sections 21 fixed to the encapsulation cover 3, forming part of the separator beam 2. This reduces the weight of the separator beam 2, which is beneficial for the lightweight design of the battery pack.

[0041] In the battery housing provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 9 As shown, at least one of the two beam sections 21 is provided with a protrusion 214 or a recess, the surface of which is in contact with the adhesive 8. In this way, the protrusion 214 or the recess can increase the surface area of ​​the beam section 21, that is, increase the bonding area between the corresponding beam section 21 and the adhesive 8, thereby strengthening the bonding strength between the beam section 21 and the adhesive 8.

[0042] The provision that "at least one of the two beam sections 21 is provided with a protrusion 214 or a recess" can include the following implementation methods: 1. A protrusion 214 is provided on the beam section 21 fixed to the sealing cover 3; 2. Both the beam section 21 fixed to the sealing cover 3 and the beam section 21 fixed to the tray body 1 are provided with protrusions 214; 3. A protrusion 214 is provided on the beam section 21 fixed to the sealing cover 3, and a recess is provided on the beam section 21 fixed to the tray body 1. ; 4. A protrusion 214 is provided on the beam 21 fixed to the tray body 1; 5. A recess is provided on the beam 21 fixed to the sealing cover 3, and a protrusion 214 is provided on the beam 21 fixed to the tray body 1; 6. A recess is provided on the beam 21 fixed to the sealing cover 3; 7. A recess is provided on both the beam 21 fixed to the sealing cover 3 and the beam 21 fixed to the tray body 1; 8. A recess is provided on the beam 21 fixed to the tray body 1.

[0043] According to a second aspect of this disclosure, a battery pack is provided, with reference to... Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, the battery pack includes the aforementioned battery housing and multiple battery cells 7. The multiple battery cells 7 are arranged on the tray body 1 and separated into two battery packs by a partition beam 2. The multiple battery cells 7 are bonded to the encapsulation cover 3. This allows the weight of the battery cells 7 and the external forces they bear to be directly transferred to the encapsulation cover 3, so that the encapsulation cover 3 can disperse and absorb the forces transmitted from the battery cells 7.

[0044] According to a third aspect of this disclosure, a vehicle is provided, the vehicle including the aforementioned battery pack.

[0045] In the vehicle provided in this disclosure, as an exemplary embodiment, the vehicle includes a body, wherein the encapsulation cover 3 is connected to the body, thereby enabling the weight of the battery pack and the external forces it bears to be transferred to the body, so as to disperse and absorb the forces transmitted from the battery pack through the body, thereby improving the overall modal stiffness of the battery pack. The encapsulation cover 3 may be provided with a mounting beam for mounting a seat and connecting it to the vehicle's sill beam.

[0046] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0047] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A battery housing, characterized in that, The battery housing includes a tray body, a partition beam, and a sealing cover. The partition beam includes at least two beam segments, two of which are respectively fixed to the tray body and the sealing cover, and any two adjacent beam segments are connected to each other.

2. The battery housing according to claim 1, characterized in that, The pallet body includes a bottom plate and two oppositely arranged side beams, wherein... At least one of the two beam sections is fixed to the base plate and connected to the two side beams, or at least one of the two beam sections is fixed to the two side beams and connected to the base plate.

3. The battery housing according to claim 2, characterized in that, An insertion space is formed between the side beam and the bottom plate. The beam body fixed to the base plate or the side beam is provided with a plug-in arm, which is inserted into the plug-in space and connected to the side beam.

4. The battery housing according to claim 3, characterized in that, The plug arm is bonded to the side beam via a first adhesive component.

5. The battery housing according to claim 3, characterized in that, The side beam includes a beam body and an abutment portion, the abutment portion being connected to the beam body and forming the insertion space between it and the base plate.

6. The battery housing according to claim 1, characterized in that, At least two of the beam segments are integrally formed with the tray body and the encapsulation cover, respectively.

7. The battery housing according to any one of claims 1-6, characterized in that, A positioning structure is provided between at least two connected beam segments. The positioning structure includes a positioning protrusion and a positioning groove. One of the two connected beam segments is provided with a positioning protrusion and the other is provided with a positioning groove. The positioning protrusion is embedded in the positioning groove.

8. The battery housing according to claim 7, characterized in that, The beam has a mating end face, the positioning protrusion protrudes from the mating end face of the corresponding beam toward the other beam, and the positioning groove is recessed from the mating end face of the corresponding beam away from the other beam. The mating end faces of the two connected beam sections fit together, and the two mating end faces, as well as the positioning protrusion and the positioning groove, are respectively bonded together by a second adhesive.

9. The battery housing according to claim 7, characterized in that, The separator beam comprises three beam sections, two of which are fixed to the tray body and the encapsulation cover respectively, and the third section has two opposing assembly surfaces, which are provided with a third adhesive for bonding to the battery cell.

10. The battery housing according to any one of claims 1-6, characterized in that, The partition beam includes two beam sections, which are respectively fixed to the tray body and the packaging cover. A filling space is provided between the two beam sections for filling with adhesive, which is used to bond the tray body, the packaging cover and the two beam sections together.

11. The battery housing according to claim 10, characterized in that, At least one of the two beam sections is provided with a protrusion or a recess, the surface of which is in contact with the adhesive.

12. A battery pack, characterized in that, The battery pack includes a battery housing according to any one of claims 1-11 and a plurality of battery cells, wherein the plurality of battery cells are arranged on the tray body and separated into two battery groups by the partition beam.

13. A vehicle, characterized in that, The vehicle includes the battery pack of claim 12.

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