Aluminum profile shell of lithium battery of new energy electric vehicle

Abstract

The utility model discloses a new energy electric vehicle lithium battery aluminum profile shell which comprises a shell assembly, and an air inlet and an air outlet are formed in the two ends of the shell assembly respectively. A first heat dissipation channel and a second heat dissipation channel which are connected with the air inlet and the air outlet through a first flow guide channel and a second flow guide channel are formed in the side walls of the upper aluminum profile shell and the lower aluminum profile shell correspondingly, and an air inlet end cover and an air outlet end cover are installed at the two ends, on the outer sides of the air inlet and the air outlet, of the shell assembly correspondingly. And an air inlet fan and an air outlet fan are mounted on the inner sides of the air inlet end cover and the air outlet end cover. The air inlet and the air outlet are formed in the two ends of the shell assembly respectively and connected with the heat dissipation channel through the flow guide channel, directional flowing of air is guaranteed, and heat accumulation is reduced. An air inlet fan and an air outlet fan are installed on the inner sides of the air inlet end cover and the air outlet end cover, air circulation is forced, and the heat dissipation effect is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery shell technical field, concretely is a new energy electric automobile lithium battery aluminum profile shell. BACKGROUND

[0002] With the global attention to environmental protection and sustainable development, new energy electric vehicles, as a kind of clean and efficient transportation tool, have been widely applied and rapidly developed. As the core power source of new energy electric vehicles, the performance and safety of lithium batteries directly affect the overall performance of electric vehicles. In the actual operation process of new energy electric vehicles, a large amount of heat will be generated in the charging and discharging process of lithium batteries. If this heat cannot be effectively dissipated in time, it will cause the temperature of lithium batteries to rise, thereby affecting the performance and service life of lithium batteries, and even may cause safety hazards, such as battery overheating, fire and explosion. Therefore, efficient heat dissipation is crucial for the normal operation and safety of lithium batteries.

[0003] At present, the common new energy electric vehicle lithium battery shell in the market adopts traditional material and structure design. Some shells have certain heat dissipation function, but the heat dissipation efficiency is low. The existing lithium battery shell also has defects in air circulation. The flow path of air in the shell is unreasonable, there are dead angles and vortexes, which cause heat accumulation and cannot fully play the role of heat dissipation. Moreover, some shells do not set effective forced ventilation devices, and only rely on natural ventilation, which is difficult to meet the heat dissipation demand of lithium batteries under high load working condition. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a new energy electric automobile lithium battery aluminum profile shell to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a new energy electric automobile lithium battery aluminum profile shell, comprising a shell assembly, the shell assembly is provided with an aluminum profile upper shell and an aluminum profile lower shell, the inside of the shell assembly is further provided with a battery mounting cabin, the inner walls of the aluminum profile upper shell and the aluminum profile lower shell on both sides of the battery mounting cabin are provided with heat exchange cavities, the two sides of the aluminum profile upper shell and the aluminum profile lower shell are respectively provided with a strip-shaped groove one and a strip-shaped groove two, and the inside of the strip-shaped groove one and the strip-shaped groove two is uniformly provided with heat dissipation fins;

[0006] The two ends of the shell assembly are respectively provided with an air inlet and an air outlet, the side walls of the aluminum profile upper shell and the aluminum profile lower shell are respectively provided with heat dissipation channels one and two connected with the air inlet and the air outlet through flow guide channels one and two, the two ends of the shell assembly outside the air inlet and the air outlet are respectively provided with an air inlet end cover and an air outlet end cover, and the inside of the air inlet end cover and the air outlet end cover is provided with an air inlet fan and an air outlet fan.

[0007] Preferably, a matching connecting plate one and a connecting plate two are provided at the edges of both sides of the upper and lower aluminum profile shells, and connecting plates one and two are evenly provided with connecting holes, and a fastening screw is installed inside each connecting hole.

[0008] Preferably, a sealing gasket is provided at the connection between the first connecting plate and the second connecting plate to improve the sealing performance of the housing.

[0009] Preferably, the side walls of both the air inlet end cover and the air outlet end cover are evenly provided with air holes to optimize air circulation.

[0010] Preferably, a protective mesh plate is installed between the battery mounting compartment and the heat exchange cavity via a connector slot to prevent collisions between the battery assembly and the heat dissipation fins.

[0011] Preferably, one end of each heat dissipation fin penetrates the sidewalls of the upper and lower aluminum profile shells and extends into the interior of the heat exchange cavity, while the other end of each heat dissipation fin extends into the outer space of the upper and lower aluminum profile shells, forming a heat dissipation path that runs through both the inside and outside.

[0012] Preferably, both ends of the upper and lower aluminum profile shells on the outer side of the air inlet and air outlet are provided with recessed grooves. A dustproof net is installed inside the recessed groove by a magnetic block. The dustproof net is easy to disassemble and clean, keeping the air inlet and outlet clean.

[0013] This utility model relates to an aluminum profile shell for lithium batteries in new energy electric vehicles, which has significant advantages and positive effects compared to the prior art, as detailed below:

[0014] 1. Significantly improves heat dissipation efficiency:

[0015] By creating heat exchange cavities on the inner walls of the upper and lower shells of the aluminum profile, and evenly arranging heat dissipation fins within these cavities, a highly efficient heat dissipation path is formed. The design of the heat dissipation fins not only increases the heat dissipation area but also, through the guidance of the strip-shaped grooves, facilitates smoother airflow, significantly improving heat dissipation efficiency.

[0016] One end of the heat dissipation fins penetrates through the side wall of the shell and extends into the heat exchange cavity, while the other end extends into the outer space of the shell, forming a heat dissipation path that runs through both the inside and outside, further enhancing the heat dissipation effect.

[0017] 2. Optimize airflow and improve heat dissipation:

[0018] Air inlets and exhaust outlets are provided at both ends of the housing assembly, and are connected to the heat dissipation channel through a guide channel, which ensures directional airflow and reduces heat accumulation.

[0019] The air inlet and air outlet covers are equipped with intake and exhaust fans on their inner sides, which force airflow and further improve the heat dissipation effect.

[0020] The air inlet and outlet end caps have evenly spaced air vents on their side walls, which optimizes airflow, reduces wind resistance, and improves heat dissipation efficiency.

[0021] 3. Enhance the sealing performance and structural stability of the casing:

[0022] Matching connecting plates are installed at the edges of the upper and lower aluminum profile shells and connected by fastening screws, which enhances the overall structural stability of the shell.

[0023] A sealing gasket is provided at the connection point of the connecting plate, which effectively improves the sealing performance of the casing, prevents external dust and moisture from entering, and ensures the safe operation of the battery.

[0024] 4. Improve protection performance and ensure battery safety:

[0025] A protective mesh plate is installed between the battery mounting compartment and the heat exchange cavity via a connector slot to prevent collisions between the battery assembly and the heat dissipation fins, thereby improving battery safety.

[0026] The outer ends of the housing of the air inlet and exhaust outlet are provided with recessed grooves, and dustproof nets are installed by magnetic blocks, which are easy to disassemble and clean, keep the air inlet and exhaust clean, and further protect the battery's operating environment.

[0027] 5. Reasonable material selection reduces overall weight:

[0028] Using aluminum profiles as the shell material not only provides excellent heat dissipation performance but also significantly reduces the overall weight of the shell, meeting the lightweight design requirements of new energy electric vehicles.

[0029] 6. Modular design for easy installation and maintenance:

[0030] The design of this utility model adopts a modular concept, with each component connected by connecting plates and fastening screws, which facilitates installation and disassembly and reduces maintenance costs.

[0031] 7. Environmentally friendly and energy-saving, in line with the concept of sustainable development:

[0032] The efficient heat dissipation design reduces energy loss caused by high temperatures in the battery, improves battery efficiency, and aligns with the environmentally friendly and energy-saving design philosophy of new energy electric vehicles.

[0033] In summary, this invention significantly improves the safety and lifespan of lithium batteries for new energy electric vehicles through technological innovations such as optimizing heat dissipation paths, enhancing shell sealing and structural stability, and improving protective performance. Attached Figure Description

[0034] Figure 1 This is a side view of the structure of this utility model;

[0035] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0036] Figure 3 This is a schematic diagram of the connection structure between the upper and lower shells of this utility model;

[0037] Figure 4 This is a top view of the internal structure of the lower shell of the aluminum profile of this utility model;

[0038] Figure 5 This is a schematic diagram of the inner structure of the end cap of this utility model;

[0039] In the diagram: 1. Housing assembly; 2. Upper aluminum profile shell; 3. Strip groove one; 4. Heat dissipation fins; 5. Exhaust end cap; 6. Strip groove two; 7. Lower aluminum profile shell; 8. Fastening screws; 9. Connecting plate two; 10. Air vent; 11. Inlet end cap; 12. Connecting plate one; 13. Air inlet; 14. Inlet fan; 15. Guide channel two; 16. Heat dissipation channel one; 17. Guide channel one; 18. Magnet block; 19. Exhaust vent; 20. Exhaust fan; 21. Dustproof net; 22. Heat dissipation channel two; 23. Connecting slot; 24. Heat exchange cavity; 25. Protective mesh plate; 26. Battery mounting compartment; 27. Sinking groove. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0041] Please see Figures 1-5 An embodiment of this utility model is provided: an aluminum profile shell for a lithium battery of a new energy electric vehicle, including a shell assembly 1. The shell assembly 1 is provided with an upper aluminum profile shell 2 and a lower aluminum profile shell 7. A matching connecting plate 12 and a connecting plate 9 are provided at the edges on both sides of the upper aluminum profile shell 2 and the lower aluminum profile shell 7. A sealing gasket is provided at the connection between the connecting plate 12 and the connecting plate 9.

[0042] Both the connecting plate 12 and the connecting plate 9 are evenly provided with connecting holes, and each connecting hole is fitted with a fastening screw 8.

[0043] like Figure 1As shown, the housing assembly 1 is the core component of this utility model, mainly comprising an upper aluminum profile shell 2 and a lower aluminum profile shell 7. Both the upper aluminum profile shell 2 and the lower aluminum profile shell 7 are made of high-strength aluminum alloy material, which has excellent corrosion resistance and mechanical strength, and can effectively protect the safety of the internal lithium battery.

[0044] The bottom of the aluminum profile lower shell 7 is equipped with an anti-slip pad 4 to enhance the stability of the shell assembly 1 during installation and use.

[0045] The upper aluminum profile shell 2 and the lower aluminum profile shell 7 are respectively provided with matching connecting plates 12 and 9 at their respective side edges. Connecting plates 12 and 9 are made of the same aluminum alloy material as the shells to ensure the strength and consistency of the overall structure.

[0046] A sealing gasket 5 is provided at the connection between connecting plate 12 and connecting plate 9. The sealing gasket 5 is made of high temperature and corrosion resistant rubber material, which can effectively prevent external dust and moisture from entering the casing and ensure that the working environment of the lithium battery is dry and clean.

[0047] Multiple connection holes are evenly distributed on the connecting plate 12 and the connecting plate 9. Each connection hole is fitted with a fastening screw 8. The fastening screw 8 is made of high-strength stainless steel, which has good corrosion resistance and mechanical strength, ensuring a firm connection between the connecting plate 12 and the connecting plate 9.

[0048] The distribution and number of the connecting holes are precisely designed to ensure that the connecting plate 12 and the connecting plate 9 are subjected to uniform force during the connection process, avoiding structural deformation or damage caused by excessive local force.

[0049] The housing assembly 1 also has a battery mounting compartment 26 inside. The inner walls of the upper aluminum profile shell 2 and the lower aluminum profile shell 7 on both sides of the battery mounting compartment 26 are provided with heat exchange cavities 24. A protective mesh plate 25 is installed between the battery mounting compartment 26 and the heat exchange cavity 24 through the insertion slot 23.

[0050] The upper shell 2 and the lower shell 7 of the aluminum profile are respectively provided with strip groove 1 3 and strip groove 2 6 on both sides, and heat dissipation fins 4 are evenly arranged inside the strip groove 1 3 and strip groove 2 6.

[0051] One end of each heat dissipation fin 4 penetrates the side wall of the upper aluminum profile shell 2 and the lower aluminum profile shell 7 and extends into the interior of the heat exchange cavity 24, while the other end of the heat dissipation fin 4 extends into the outer space of the upper aluminum profile shell 2 and the lower aluminum profile shell 7.

[0052] The housing assembly 1 has a battery mounting compartment 26 inside for mounting the battery pack.

[0053] The battery mounting compartment 26 is located in the center of the housing assembly 1, with the inner walls of the upper aluminum profile shell 2 and the lower aluminum profile shell 7 on either side. Heat exchange cavities 24 are respectively provided on the inner walls of the upper aluminum profile shell 2 and the lower aluminum profile shell 7. The main function of the heat exchange cavities 24 is to dissipate the heat generated by the battery pack during charging and discharging through convection heat transfer.

[0054] A protective mesh plate 25 is installed between the battery mounting compartment 26 and the heat exchange cavity 24 via a connector slot 23. The function of the protective mesh plate 25 is to prevent collisions between the battery assembly and the heat sink fins.

[0055] On both sides of the upper aluminum profile shell 2 and the lower aluminum profile shell 7, there are strip-shaped groove 3 and strip-shaped groove 6 respectively. Heat dissipation fins 4 are evenly arranged inside the strip-shaped groove 3 and strip-shaped groove 6.

[0056] One end of the heat dissipation fin 4 penetrates the sidewalls of the upper aluminum profile shell 2 and the lower aluminum profile shell 7, and extends into the interior of the heat exchange cavity 24. The purpose of this design is to increase the heat dissipation area and improve the heat exchange efficiency. The other end of the heat dissipation fin 4 extends to the outer space of the upper aluminum profile shell 2 and the lower aluminum profile shell 7, so that heat can be transferred to the external environment through the fins.

[0057] The heat dissipation fins 4 are made of aluminum alloy, which has excellent thermal conductivity. The thickness of the heat dissipation fins is 1-2 mm, the height is 20-30 mm, and the spacing is 5-10 mm. This design ensures sufficient heat dissipation area while avoiding mutual interference between the fins, ensuring smooth airflow.

[0058] The housing assembly 1 has an air inlet 13 and an air outlet 19 at both ends. The upper aluminum profile 2 and the lower aluminum profile 7 outside the air inlet 13 and the air outlet 19 are provided with recessed grooves 27 at both ends. A dustproof net 21 is installed inside the recessed groove 27 through a magnet block 18.

[0059] The inner sidewalls of the upper aluminum profile shell 2 and the lower aluminum profile shell 7 are respectively provided with heat dissipation channels 16 and 22, which are connected to the air inlet 13 and the air outlet 19 through the first flow channel 17 and the second flow channel 15. The two ends of the shell assembly 1 outside the air inlet 13 and the air outlet 19 are respectively equipped with air inlet end cap 11 and air outlet end cap 5. The inner side of the air inlet end cap 11 and the air outlet end cap 5 is equipped with an air intake fan 14 and an air outlet fan 20.

[0060] Both the air inlet end cover 11 and the air outlet end cover 5 have air holes 10 evenly arranged on their side walls.

[0061] The housing assembly 1 has an air inlet 13 and an air outlet 19 at its two ends for air to enter and exit.

[0062] Air inlet 13 and air outlet 19 are located at both ends of housing assembly 1, and recessed grooves 27 are provided at both ends of the outer aluminum profile upper shell 2 and aluminum profile lower shell 7. The recessed grooves 27 are designed with a moderate depth to ensure convenient installation and removal of dust filter 21. The dust filter 21 is installed inside the recessed groove 27 by magnetic blocks 18. The magnetism of the magnetic blocks 18 is sufficient to ensure that the dust filter 21 will not fall off during normal use, while also facilitating the removal and cleaning of the dust filter.

[0063] The upper aluminum profile shell 2 and the lower aluminum profile shell 7 have heat dissipation channels 1-16 and 22 respectively installed inside their side walls. Heat dissipation channel 1-16 is connected to the air inlet 13 via a guide channel 1-17, and heat dissipation channel 2-22 is connected to the exhaust outlet 19 via a guide channel 2-15. The design of guide channels 1-17 and 2-15 ensures smooth airflow and improves heat dissipation efficiency.

[0064] An air inlet end cap 11 and an air outlet end cap 5 are respectively installed at both ends of the outer casing assembly 1 of the air inlet 13 and the air outlet 19. An intake fan 14 and an exhaust fan 20 are respectively installed on the inner side of the air inlet end cap 11 and the air outlet end cap 5 to force airflow and enhance heat dissipation. Air vents 10 are evenly arranged on the side walls of both the air inlet end cap 11 and the air outlet end cap 5. The distribution and size of the air vents 10 have been optimized to ensure uniform and efficient airflow.

[0065] When this application embodiment is used,

[0066] When a new energy electric vehicle is in operation, the lithium battery is charged and discharged in the battery mounting compartment 26, generating a large amount of heat. The heat is conducted through the wall of the battery mounting compartment 26 to the heat exchange cavity 24 inside the aluminum profile upper shell 2 and aluminum profile lower shell 7. The heat dissipation fins 4 located in the heat exchange cavity 24 absorb the heat in the heat exchange cavity 24. Since the heat dissipation fins 4 are made of aluminum alloy, which has good thermal conductivity, the heat is quickly conducted through the heat dissipation fins 4 to the part that extends to the outer space of the aluminum profile upper shell 2 and aluminum profile lower shell 7.

[0067] When the intake fan 14 starts, outside air enters the intake port 13 through the air vent 10 on the side wall of the intake end cover 11. 5. The air entering the intake port 13 is guided into the heat dissipation channel 16 by the flow guide channel 17. In the heat dissipation channel 16, the air exchanges heat with the heat dissipation fins 4, absorbing the heat from the heat dissipation fins 4, and the air temperature rises. The heated air enters the heat dissipation channel 22 through the flow guide channel 25. Finally, the heated air is discharged into the outside environment through the exhaust port 19 by the exhaust fan 20, completing one air circulation heat dissipation process. This continuous circulation maintains the appropriate operating temperature of the lithium battery.

[0068] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0069] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0070] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0071] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lithium battery aluminum profile housing for a new energy electric vehicle, comprising a housing assembly (1), characterized in that: The housing assembly (1) is provided with an aluminum profile upper shell (2) and an aluminum profile lower shell (7). The housing assembly (1) is also provided with a battery mounting compartment (26). The inner walls of the aluminum profile upper shell (2) and the aluminum profile lower shell (7) on both sides of the battery mounting compartment (26) are provided with heat exchange cavities (24). The aluminum profile upper shell (2) and the aluminum profile lower shell (7) are respectively provided with a strip groove one (3) and a strip groove two (6). The interior of the strip groove one (3) and the strip groove two (6) are uniformly provided with heat dissipation fins (4). The housing assembly (1) is provided with an air inlet (13) and an air outlet (19) at both ends. The upper aluminum profile shell (2) and the lower aluminum profile shell (7) are respectively provided with a heat dissipation channel one (16) and a heat dissipation channel two (22) connected to the air inlet (13) and the air outlet (19) through a flow guide channel one (17) and a flow guide channel two (15). The housing assembly (1) outside the air inlet (13) and the air outlet (19) are respectively provided with an air inlet end cover (11) and an air outlet end cover (5) at both ends. An air inlet fan (14) and an air outlet fan (20) are installed on the inner side of the air inlet end cover (11) and the air outlet end cover (5).

2. The aluminum profile housing for a lithium battery in a new energy electric vehicle according to claim 1, characterized in that: The upper shell (2) and lower shell (7) of the aluminum profile are provided with matching connecting plates 1 (12) and 2 (9) on both sides of the edge position. Both connecting plates 1 (12) and 2 (9) are provided with connecting holes evenly, and each connecting hole is fitted with a fastening screw (8).

3. The aluminum profile housing for a lithium battery in a new energy electric vehicle according to claim 2, characterized in that: A sealing gasket is provided at the connection between the connecting plate one (12) and the connecting plate two (9).

4. The aluminum profile housing for a lithium battery in a new energy electric vehicle according to claim 1, characterized in that: Both the air inlet end cap (11) and the air outlet end cap (5) have air holes (10) evenly arranged on their side walls.

5. The aluminum profile housing for a lithium battery in a new energy electric vehicle according to claim 1, characterized in that: A protective mesh plate (25) is installed between the battery mounting compartment (26) and the heat exchange cavity (24) via a connector slot (23).

6. The aluminum profile housing for a lithium battery in a new energy electric vehicle according to claim 1, characterized in that: One end of each of the heat dissipation fins (4) penetrates the sidewalls of the upper aluminum profile shell (2) and the lower aluminum profile shell (7) and extends into the interior of the heat exchange cavity (24), while the other end of each of the heat dissipation fins (4) extends into the outer space of the upper aluminum profile shell (2) and the lower aluminum profile shell (7).

7. The aluminum profile housing for a lithium battery in a new energy electric vehicle according to claim 1, characterized in that: The upper aluminum profile shell (2) and lower aluminum profile shell (7) on the outside of the air inlet (13) and air outlet (19) are provided with recessed grooves (27) at both ends. A dustproof net (21) is installed inside the recessed groove (27) by means of a magnet (18).

Images