A battery pack and power supply device

Abstract

The embodiment of the application relates to the technical field of new energy batteries, and discloses a battery pack and a power supply device, the battery pack comprising a battery box, a supporting assembly and a double-layer battery module, the supporting assembly being arranged in the battery box, the double-layer battery module being arranged in the battery box, the double-layer battery module comprising an upper-layer module and a lower-layer module, the upper-layer module assembly and the lower-layer module assembly being arranged in an up-down mode along a height direction of the battery box, the upper-layer module and the lower-layer module being detachably fixed to the supporting assembly, and the supporting assembly being used for supporting the upper-layer module and the lower-layer module. In the above mode, the embodiment of the application can solve the problem of unstable module connection in the existing double-layer structure.

Description

Technical Field

[0001] This application relates to the field of new energy battery technology, and in particular to a battery module and a power supply device. Background Technology

[0002] As the energy storage and power output device for electric vehicles, the power battery system is the source of power for electric vehicles and the guarantee of their driving range. With the vigorous development of the new energy industry, the increasing demand for battery modules has placed higher demands on the energy density and pack efficiency of battery systems. The existing battery pack design of electric vehicles usually adopts a single-layer module layout, which cannot provide sufficient energy density within the limited chassis space, resulting in a limited driving range. To solve this problem, the industry has tried to adopt a double-layer battery module structure with upper and lower battery modules arranged in the height direction within a battery box, but the current double-layer design has obvious defects.

[0003] During the implementation of this application's embodiments, the inventors discovered that the current dual-layer battery module structure has the problem of unstable connection between battery modules, which in turn affects the performance and operational safety of electric vehicles. Utility Model Content

[0004] The main technical problem solved by the embodiments of this application is to provide a battery pack that ensures a stable connection between the upper and lower modules through a support component, thereby solving the problem of unstable module connection in the existing double-layer structure.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is: providing a battery pack, including a battery housing, a support assembly, and a double-layer battery module. The support assembly is disposed in the battery housing, and the double-layer battery module can be installed in the battery housing. The double-layer battery module includes an upper module and a lower module. The upper module assembly and the lower module assembly are arranged vertically along the height direction of the battery housing. Both the upper module and the lower module can be detachably fixed to the support assembly, and the support assembly is used to support the upper module and the lower module.

[0006] Optionally, the support assembly includes a plurality of support beams disposed within the battery housing. The plurality of support beams are arranged parallel to each other along the length direction of the battery housing and are disposed between the upper module and the lower module. The support beams are used to support the upper module in the vertical direction and isolate the lower module.

[0007] Optionally, the support assembly further includes a plurality of first connecting beams and a plurality of second connecting beams. The plurality of first connecting beams are arranged parallel to each other and spaced apart along the length direction of the battery box. The plurality of second connecting beams are arranged parallel to each other and spaced apart along the length direction of the battery box. The plurality of first connecting beams enclose a first receiving cavity, and the plurality of second connecting beams enclose a second receiving cavity. The upper module is disposed in the first receiving cavity, the lower module is disposed in the second receiving cavity, and the support beam is disposed between the first receiving cavity and the second receiving cavity.

[0008] Optionally, the support assembly further includes multiple support members, and the top of the upper module extends with multiple first fixed wing plates. The multiple first fixed wing plates are spaced apart along the top of the upper module. The first fixed wing plates are provided with first fixing holes. The upper surface of the first connecting beam is provided with multiple first threaded holes. A support member passes through a first fixing hole and is screwed to a first threaded hole.

[0009] Optionally, the support assembly further includes multiple fixing screws, the upper surface of the support beam is provided with multiple first through holes, the lower surface of the support beam is provided with multiple second through holes, and the support beam is provided with multiple slots accordingly. One of the fixing screws passes through a first through hole and a second through hole in sequence and is inserted into a slot.

[0010] Optionally, the support assembly further includes multiple connectors. The upper surface of the support beam is provided with multiple first connecting holes, and the lower surface of the support beam is provided with multiple second connecting holes. The upper surface of the second connecting beam is also provided with a second threaded hole. Furthermore, the upper surface of the second connecting beam abuts against the lower surface of the support beam, and one of the connectors passes through a first connecting hole and a second connecting hole in sequence and is screwed into the second threaded hole.

[0011] Optionally, the battery pack further includes a positioning component disposed at the bottom of the battery housing, the positioning component being used to fix the lower module.

[0012] Optionally, the positioning assembly includes multiple positioning screws and multiple positioning beams. The multiple positioning beams are arranged parallel to each other along the length direction of the battery box, and the two ends of the positioning beams are respectively fixed to the side wall of the battery box. The bottom of the lower module extends with multiple second fixing wing plates, which are arranged at intervals along the bottom of the lower module. The second fixing wing plates are provided with second fixing holes. The positioning beams are correspondingly provided with multiple positioning slots. A positioning screw passes through a second fixing hole and is inserted into a positioning slot.

[0013] Optionally, the battery box includes an upper cover and a lower box, the lower box is provided with a receiving groove, the support assembly and the double-layer battery module are both received in the receiving groove, and the upper cover is used to cover the lower box.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in the embodiments of this application is to provide a power supply device, including any of the above-mentioned battery packs.

[0015] This application provides a battery pack including a battery housing, a support assembly, and a double-layer battery module. The support assembly is disposed in the battery housing, and the double-layer battery module can be installed in the battery housing. The double-layer battery module includes an upper module and a lower module, which are arranged vertically along the height of the battery housing. Both the upper and lower modules are detachably fixed to the support assembly, which supports both the upper and lower modules. By adopting a two-layer module layout within the battery housing, the energy density within a limited space is effectively improved, increasing the driving range of the electric vehicle. Furthermore, the design of the support assembly ensures a stable connection between the upper and lower modules, solving the problem of unstable module connections in existing double-layer structures. Additionally, the detachable design of the double-layer battery module facilitates maintenance and replacement, improving repair efficiency. Simultaneously, this design enhances the safety and reliability of the battery pack, effectively ensuring the performance and operational safety of the electric vehicle. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the battery pack according to an embodiment of this application;

[0018] Figure 2 This is an exploded view of the battery pack according to an embodiment of this application;

[0019] Figure 3 This is a partial structural schematic diagram of the battery pack according to an embodiment of this application;

[0020] Figure 4 yes Figure 3 Enlarged view of part A in the middle;

[0021] Figure 5 yes Figure 3 Enlarged view of part B in the middle;

[0022] Figure 6 yesFigure 3 A magnified view of part C in the middle.

[0023] The reference numerals in the attached drawings in the specific embodiments are as follows: 100, battery pack; 10, battery box; 11, upper box cover; 12, lower box; 13, receiving slot; 20, support assembly; 21, support beam; 22, first connecting beam; 23, second connecting beam; 24, support member; 25, connector; 26, fixing screw; 30, double-layer battery module; 31, upper module; 301, first fixing wing plate; 32, lower module; 321, second fixing wing plate; 40, positioning assembly; 41, positioning screw; 42, positioning beam. Detailed Implementation

[0024] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0026] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0027] Reference Figure 1 and Figure 2 The present invention provides a battery pack 100 comprising: a battery housing 10, a support assembly 20, and a double-layer battery module 30.

[0028] The battery housing 10 is used to house the support assembly 20 and the double-layer battery module 30. The support assembly 20 is disposed within the battery housing 10 and is used to support and fix the double-layer battery module 30. The double-layer battery module 30 can be installed within the battery housing 10. The double-layer battery module 30 includes an upper module 31 and a lower module 32. The upper module 31 and the lower module 32 are arranged vertically along the height direction of the battery housing 10. Both the upper module 31 and the lower module 32 can be detachably fixed to the support assembly 20, and the support assembly 20 is used to support the upper module 31 and the lower module 32. The battery housing 10 includes an upper cover 11 and a lower housing 12.

[0029] like Figure 2 As shown, the upper cover 11 is the top covering structure of the battery box 10, and the lower box 12 is provided with a receiving groove 13, which forms a space area to accommodate the support assembly 20 and the double-layer battery module 30. In practical applications, both the support assembly 20 and the double-layer battery module 30 are housed in the receiving groove 13, and the upper cover 11 is used to cover the lower box 12, forming a completely enclosed battery box 10 structure.

[0030] In this embodiment, the upper cover 11 and the lower housing 12 can be fixed by bolts or other detachable connection methods, facilitating later maintenance and repair. The upper cover 11 may include a reinforcing rib structure to improve overall rigidity and impact resistance. The receiving groove 13 of the lower housing 12 has sufficient depth to accommodate the upper and lower battery modules and their supporting structures, and an inspection window is designed on the side of the housing for easy maintenance and repair.

[0031] The battery pack 100 in this application improves space utilization and increases battery capacity per unit volume by arranging upper and lower battery modules in the height direction within the battery housing 10, thus solving the problem of limited battery range caused by single-layer layout in the prior art. Simultaneously, the support component 20 ensures the stability of the connection between the upper module 31 and the lower module 32, improving the performance and operational safety of the electric vehicle.

[0032] Please see Figure 3 The support assembly 20 includes a plurality of support beams 21 disposed within the battery housing 10, the plurality of support beams 21 being arranged parallel to each other at intervals along the length direction of the battery housing 10. The support beams 21 are disposed between the upper module 31 and the lower module 32, serving to support the upper module 31 in the vertical direction and isolate the lower module 32. In this embodiment, the support beams 21 are made of high-strength metal material, possessing sufficient rigidity and strength to withstand the weight of the upper module 31 and maintain structural stability.

[0033] Furthermore, the support assembly 20 also includes a plurality of first connecting beams 22 and a plurality of second connecting beams 23. The plurality of first connecting beams 22 are arranged parallel to each other along the length of the battery housing 10, and the plurality of second connecting beams 23 are arranged parallel to each other along the length of the battery housing 10. The plurality of first connecting beams 22 enclose a first receiving cavity (not shown), and the plurality of second connecting beams 23 enclose a second receiving cavity (not shown). The upper module 31 is disposed in the first receiving cavity, the lower module 32 is disposed in the second receiving cavity, and the support beam 21 is disposed between the first receiving cavity and the second receiving cavity. Through the above arrangement, a complete support frame is formed. The first and second receiving cavities provide stable installation spaces for the upper module 31 and the lower module 32, respectively, while the support beam 21 serves as an isolation and support structure between the two receiving cavities, ensuring the stability of the overall structure.

[0034] For further details, please refer to Figure 4 The support assembly 20 also includes multiple support members 24. Multiple first fixed wing plates 301 extend from the top of the upper module 31, spaced apart along the top of the upper module 31. Each first fixed wing plate 301 has a first fixing hole (not shown). The upper surface of the first connecting beam 22 has multiple first threaded holes (not shown). Each support member 24 passes through a first fixing hole and is screwed into a first threaded hole. This connection method achieves a stable connection between the upper module 31 and the first connecting beam 22, preventing the upper module 31 from moving or loosening during use.

[0035] Please see Figure 5 The support assembly 20 further includes multiple fixing screws 26. The upper surface of the support beam 21 has multiple first through holes (not shown), and the lower surface of the support beam 21 has multiple second through holes (not shown). The support beam 21 also has multiple corresponding slots (not shown). A fixing screw 26 passes through a first through hole and a second through hole in sequence and is inserted into a slot. The design of the fixing screws 26 further enhances the stability of the support beam 21, preventing deformation or displacement of the support beam 21 under stress.

[0036] The support assembly 20 also includes multiple connectors 25. The upper surface of the support beam 21 has multiple first connecting holes (not shown), and the lower surface of the support beam 21 has multiple second connecting holes (not shown). The upper surface of the second connecting beam 23 also has a second threaded hole (not shown). The upper surface of the second connecting beam 23 abuts against the lower surface of the support beam 21. A connector 25 passes through a first connecting hole and a second connecting hole in sequence and is screwed into the second threaded hole. This connection method achieves a stable connection between the support beam 21 and the second connecting beam 23, forming a robust support frame.

[0037] In this embodiment, the support component 20 provides a stable support and connection structure for the double-layer battery module 30, solving the problem of unstable connections between battery modules in existing double-layer battery module 30 structures. Simultaneously, this design facilitates module installation, removal, and maintenance, improving the maintenance efficiency and lifespan of the battery pack 100.

[0038] Please see Figure 6 The battery pack 100 also includes a positioning component 40, which is disposed at the bottom of the battery housing 10 and is used to fix the lower module 32. The purpose of setting the positioning component 40 is to further enhance the fixing stability of the lower module 32 and prevent the lower module 32 from shifting or loosening during the operation of the electric vehicle.

[0039] Specifically, the positioning assembly 40 includes multiple positioning screws 41 and multiple positioning beams 42. The multiple positioning beams 42 are arranged parallel to each other along the length of the battery housing 10, and both ends of each positioning beam 42 are fixed to the side wall of the battery housing 10. Through this arrangement, the positioning beams 42 form a robust bottom support structure, providing a stable mounting base for the lower module 32.

[0040] The lower module 32 has multiple second fixing wing plates 321 extending from its bottom, spaced apart along the bottom of the lower module 32. Each second fixing wing plate 321 has a second fixing hole (not shown), and the positioning beam 42 has multiple positioning slots (not shown). A positioning screw 41 passes through a second fixing hole and is inserted into a positioning slot. This connection method achieves a stable connection between the lower module 32 and the positioning beam 42, effectively preventing the lower module 32 from shaking or shifting during use.

[0041] like Figure 6As shown, the positioning screw 41 is designed with an anti-loosening structure to ensure stability even under long-term vibration. The positioning slot is designed with an anti-dislodgement structure to further enhance the reliability of the connection. The positioning beam 42 is made of high-strength metal material, which has sufficient load-bearing capacity and resistance to deformation.

[0042] In this embodiment, the positioning component 40 and the support component 20 form a corresponding fixing structure, which together ensures the stable installation of the double-layer battery module 30 within the battery housing 10. The upper module 31 is fixed by the support component 20, and the lower module 32 is fixed by the positioning component 40. The two cooperate with each other to form a strong and stable double-layer battery pack 100 structure.

[0043] The above design effectively solves the problem of unstable connections between battery modules in the existing dual-layer battery module 30 structure, improving the performance and operational safety of electric vehicles. Meanwhile, the detachable design of the positioning component 40 facilitates the maintenance and replacement of the battery modules, improving the maintenance efficiency and lifespan of the battery system.

[0044] This application provides a battery pack 100, including a battery housing 10, a support assembly 20, and a double-layer battery module 30. The support assembly 20 is disposed on the battery housing 10, and the double-layer battery module 30 can be installed on the battery housing 10. The double-layer battery module 30 includes an upper module 31 and a lower module 32. The upper module 31 and the lower module 32 are arranged vertically along the height direction of the battery housing 10. Both the upper module 31 and the lower module 32 are detachably fixed to the support assembly 20. The support assembly 20 is used for support... The upper module 31 and the lower module 32 are supported by a two-layer module layout within the battery box 10, which effectively improves the energy density in a limited space and increases the driving range of the electric vehicle. Furthermore, the design of the support component 20 ensures a stable connection between the upper and lower modules 32, solving the problem of unstable module connection in existing double-layer structures. In addition, the detachable design of the double-layer battery module 30 facilitates maintenance and replacement, improving maintenance efficiency. At the same time, this design improves the safety and reliability of the battery pack 100, effectively ensuring the performance and operational safety of the electric vehicle.

[0045] This embodiment also provides a power supply device that uses the battery pack 100 described above. This power supply device can be applied to the power system of new energy vehicles, effectively improving the energy density of the battery system and solving the problem of limited battery range caused by single-layer layout in the prior art.

[0046] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A battery pack, characterized in that, include: Battery housing; Support components are disposed in the battery housing; A dual-layer battery module can be installed in the battery housing. The dual-layer battery module includes an upper module and a lower module. The upper module and the lower module are arranged vertically along the height direction of the battery housing. Both the upper module and the lower module can be detachably fixed to the support assembly. The support assembly is used to support the upper module and the lower module.

2. The battery pack according to claim 1, characterized in that, The support assembly includes multiple support beams disposed within the battery housing. The multiple support beams are arranged parallel to each other and spaced apart along the length of the battery housing. The support beams are disposed between the upper module and the lower module. The support beams are used to support the upper module in the vertical direction and isolate the lower module.

3. The battery pack according to claim 2, characterized in that, The support assembly further includes multiple first connecting beams and multiple second connecting beams, wherein the multiple first connecting beams are arranged parallel to each other and spaced apart along the length direction of the battery box, and the multiple second connecting beams are arranged parallel to each other and spaced apart along the length direction of the battery box. Furthermore, a plurality of first connecting beams enclose a first receiving cavity, a plurality of second connecting beams enclose a second receiving cavity, the upper module is disposed in the first receiving cavity, the lower module is disposed in the second receiving cavity, and the supporting beam is disposed between the first receiving cavity and the second receiving cavity.

4. The battery pack according to claim 3, characterized in that, The support assembly also includes multiple support members. The top of the upper module extends with multiple first fixed wing plates, which are spaced apart along the top of the upper module. Each first fixed wing plate has a first fixed hole, and the upper surface of the first connecting beam has multiple first threaded holes. A support member passes through a first fixed hole and is screwed to a first threaded hole.

5. The battery pack according to claim 4, characterized in that, The support assembly also includes multiple fixing screws. The upper surface of the supporting beam is provided with a plurality of first through holes, the lower surface of the supporting beam is provided with a plurality of second through holes, and the supporting beam is provided with a plurality of slots. A fixing screw passes through a first through hole and a second through hole in sequence and is inserted into a slot.

6. The battery pack according to claim 5, characterized in that, The support assembly also includes multiple connectors. The upper surface of the supporting beam is provided with a plurality of first connecting holes, the lower surface of the supporting beam is provided with a plurality of second connecting holes, the upper surface of the second connecting beam is also provided with a second threaded hole, and the upper surface of the second connecting beam abuts against the lower surface of the supporting beam. A connector passes through a first connecting hole and a second connecting hole in sequence and is screwed into the second threaded hole.

7. The battery pack according to claim 1, characterized in that, The battery pack also includes a positioning component, which is disposed at the bottom of the battery housing and is used to fix the lower module.

8. The battery pack according to claim 7, characterized in that, The positioning assembly includes multiple positioning screws and multiple positioning beams. Multiple positioning beams are arranged parallel to each other along the length of the battery box, and both ends of the positioning beams are fixed to the side wall of the battery box. Multiple second fixing wing plates extend from the bottom of the lower module and are arranged at intervals along the bottom of the lower module. The second fixing wing plates are provided with second fixing holes. The positioning beams are correspondingly provided with multiple positioning slots. A positioning screw passes through a second fixing hole and is inserted into a positioning slot.

9. The battery pack according to claim 1, characterized in that, The battery box includes an upper cover and a lower box. The lower box is provided with a receiving groove, in which the support assembly and the double-layer battery module are received. The upper cover is used to cover the lower box.

10. A power supply device, characterized in that, Includes the battery pack as described in any one of claims 1-9.

Images