Packaging box for power battery pack of new energy automobile

Abstract

The utility model belongs to the field of power battery shells, and particularly relates to a packaging box for a power battery pack of a new energy automobile, which comprises an upper shell, upper connecting plates are fixedly mounted on the periphery of the upper shell, a cavity is formed in the bottom of the upper shell, a baffle is fixedly mounted in the middle of the cavity, and the upper connecting plates are fixedly mounted on the baffle. A plurality of exhaust fans are fixedly installed in the baffle, an air cavity is formed in the top of the baffle, and an exhaust pipe is fixedly installed at the top of the upper shell. Through the structural design of the exhaust fan and the exhaust pipe, the function of quickly dissipating heat is realized, and the problem of slower degradation of the heat of the battery pack is solved, so that the working temperature of the battery pack can be effectively reduced, and the heat generated by the internal battery pack is quickly discharged, so that the battery pack can be effectively kept working in a safe temperature range, and the service life of the battery pack is prolonged. Damage of heat to the battery is reduced, the service life of the battery is prolonged, and the battery pack in a safe temperature environment can improve output power.

Description

Technical Field

[0001] The utility model relates to the field of power battery shells, in particular to a packaging box for a power battery pack of a new energy vehicle. Background Art

[0002] New energy vehicles are mainly composed of battery drive systems, motor systems, electronic control systems and assembly parts.

[0003] For example, a packaging box for a power battery pack of a new energy vehicle with a publication number of CN218448248U, the battery box includes an upper shell, a lower shell, a sealing pad and a vacuum device, the upper shell and the lower shell are combined to form a battery box, the sealing pad is arranged at the connection between the upper shell and the lower shell to seal the connection gap between the upper shell and the lower shell, and the inner cavity of the battery box is used to store the power battery; the upper shell or the lower shell has an air extraction port, the vacuum device is arranged in the upper shell, the lower shell or the inner cavity of the battery box, the vacuum extraction port of the vacuum device is connected to the air extraction port, the upper shell or the lower shell is provided with a power output socket for connecting the power battery, and the vacuum device is electrically connected to the power output socket. When the power battery is in an environment without combustion conditions, the power battery will not spontaneously combust, which greatly improves the safety of electric vehicles.

[0004] However, according to the working principle proposed in the above patent, the battery of the above device is in a vacuum state, and the heat transfer rate is slow, resulting in the heat generated by the battery pack cannot be quickly dissipated. In a high temperature environment, the chemical reaction rate of the battery pack will be accelerated, resulting in an increase in the self-discharge rate of the battery and a decrease in the capacity, thereby reducing the available energy and usage time of the battery, and reducing the life and performance of the battery. At the same time, in a high temperature environment, the battery may produce dangerous situations such as combustion and explosion.

[0005] Therefore, in order to solve the above problems, a packaging box for a new energy vehicle power battery pack is proposed. Utility Model Content

[0006] In order to make up for the shortcomings of the prior art and the problem of slow thermal degradation of battery packs, the utility model provides a packaging box for a new energy vehicle power battery pack.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a packaging box for a new energy vehicle power battery pack, comprising an upper shell, upper connecting plates are fixedly installed on all four sides of the upper shell, a cavity is opened at the bottom of the upper shell, a baffle is fixedly installed in the middle part of the cavity, a plurality of exhaust fans are fixedly installed inside the baffle, an air cavity is provided on the top of the baffle, and an exhaust pipe is fixedly installed on the top of the upper shell.

[0008] Preferably, a wiring tube is fixedly installed on the top of the upper shell, and a sealing ring is fixedly installed inside the wiring tube.

[0009] Preferably, a sealing strip is fixedly mounted on one side of the bottom of the upper connecting plate, a clamping strip is fixedly mounted on the other side of the bottom of the upper connecting plate, and a plurality of mounting holes are opened on the top of the upper connecting plate.

[0010] Preferably, the bottom of the upper shell is threadedly connected to the lower shell, and lower connecting plates are fixedly installed around the top of the lower shell, and a plurality of positioning holes are opened on the top of the lower connecting plate.

[0011] Preferably, a first groove is formed on one side of the top of the lower connecting plate, and a second groove is formed on the other side of the lower connecting plate.

[0012] Preferably, a lining is fixedly installed inside the lower shell, and a base is fixedly installed on the bottom of the lining.

[0013] Preferably, a plurality of ventilation holes are provided on one side of the base, and a partition is fixedly installed in the middle portion of the lining.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model realizes the function of rapid heat dissipation through the structural design of the exhaust fan and the exhaust pipe, and solves the problem of slow heat degradation of the battery pack, thereby effectively reducing the operating temperature of the battery pack, and quickly dissipating the heat generated by the internal battery pack, thereby effectively keeping the battery pack operating within a safe temperature range, reducing the damage to the battery by heat, and extending the service life of the battery. In addition, the battery pack in a safe temperature environment can increase the output power, and the setting of the air cavity facilitates the concentration of heat absorbed by the exhaust fan, which is convenient for subsequent release, thereby realizing energy recycling.

[0016] 2. The utility model unifies the wiring harness through the structural design of the wiring tube and the sealing ring, reduces the possibility of interference with the working environment of the battery pack due to the external environment, increases the airtightness between the upper shell and the lower shell through the setting of the sealing strip, effectively prevents moisture and dust in the air from entering the battery pack packaging box, ensures the airtightness inside the packaging box, and realizes the function of increasing the stability of the packaging box through the setting of the card strip, provides a fixing support other than the fixing screws, prevents loosening or displacement caused by external vibration or impact, protects the components and connections inside the battery pack, and facilitates the subsequent maintenance and replacement of the battery pack, thereby improving the maintenance efficiency, and facilitates the setting of the lower connecting plate and the positioning hole to cooperate with the upper connecting plate and the mounting hole to fix the upper shell and the lower shell, so that the battery pack can be The battery pack is isolated from the external environment, thereby ensuring that the battery pack is in a safe working environment; the setting of the first groove and the second groove can provide good positioning and alignment functions, and facilitate the stacking and assembly of the upper shell and the lower shell; at the same time, multiple sections block dust in the air, further protect the battery pack from dust intrusion, and increase the safety of the battery; through the setting of the lining, additional physical protection and isolation functions are achieved, thereby reducing the impact of vibration or external impact on the battery, thereby further protecting the battery pack and improving the stability and reliability of the battery pack; through the setting of the ventilation holes, the bottom ventilation function is achieved, which can help to evenly distribute the temperature inside the battery pack, further increase the cooling effect of the battery pack, and help to improve the operating stability of the entire battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the assembly structure of the utility model;

[0019] Figure 2 This is a bottom view of the structure of the upper shell of the utility model;

[0020] Figure 3 This is a schematic diagram of the top view of the lower shell structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the upper shell of the utility model;

[0022] Figure 5 It is an enlarged structural schematic diagram of the lining of the utility model.

[0023] In the figure: 1. upper shell; 2. upper connecting plate; 3. cavity; 4. baffle; 5. exhaust fan; 6. air cavity; 7. exhaust pipe; 8. wiring tube; 9. sealing ring; 10. sealing strip; 11. clamping strip; 12. mounting hole; 13. lower shell; 14. lower connecting plate; 15. positioning hole; 16. first groove; 17. second groove; 18. lining; 19. base; 20. ventilation hole; 21. partition. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The following is combined with Figure 1-5 To further explain this application:

[0026] The embodiment of the present application discloses a packaging box for a new energy vehicle power battery pack, including an upper shell 1, upper connecting plates 2 are fixedly installed on all four sides of the upper shell 1, a cavity 3 is opened at the bottom of the upper shell 1, a baffle 4 is fixedly installed in the middle part of the cavity 3, a plurality of exhaust fans 5 are fixedly installed inside the baffle 4, an air cavity 6 is provided on the top of the baffle 4, and an exhaust pipe 7 is fixedly installed on the top of the upper shell 1.

[0027] Reference Figure 1 , Figure 2 , Figure 4 Through the structural design of the exhaust fan 5 and the exhaust pipe 7, the function of rapid heat dissipation is achieved, and the problem of slow heat degradation of the battery pack is solved. Therefore, the operating temperature of the battery pack can be effectively reduced. By quickly dissipating the heat generated by the internal battery pack, the battery pack can be effectively kept working within a safe temperature range, reducing the damage to the battery by heat and extending the service life of the battery. In addition, the battery pack in a safe temperature environment can increase the output power. Through the setting of the air cavity 6, it is convenient to concentrate the heat absorbed by the exhaust fan 5, which is convenient for subsequent release, thereby realizing energy recycling.

[0028] A wiring tube 8 is fixedly installed on the top of the upper housing 1 , and a sealing ring 9 is fixedly installed inside the wiring tube 8 .

[0029] Reference Figure 1 Through the structural design of the wiring tube 8 and the sealing ring 9, the wiring harness can be unified, reducing the possibility of interference with the working environment of the battery pack due to the external environment.

[0030] A sealing strip 10 is fixedly mounted on one side of the bottom of the upper connecting plate 2 , a clamping strip 11 is fixedly mounted on the other side of the bottom of the upper connecting plate 2 , and a plurality of mounting holes 12 are opened on the top of the upper connecting plate 2 .

[0031] Reference Figure 2 and Figure 4 By setting the sealing strip 10, the airtightness between the upper shell 1 and the lower shell 13 is increased, which can effectively prevent moisture and dust in the air from entering the battery pack packaging box, ensuring the airtightness inside the packaging box. By setting the card strip 11, the function of increasing the stability of the packaging box is achieved, and a fixed support other than the fixing screws is provided, which can prevent loosening or displacement caused by external vibration or impact, protect the components and connections inside the battery pack, and facilitate the subsequent maintenance and replacement of the battery pack, thereby improving the maintenance efficiency.

[0032] The bottom of the upper shell 1 is threadedly connected to the lower shell 13 , and lower connecting plates 14 are fixedly installed around the top of the lower shell 13 . A plurality of positioning holes 15 are formed on the top of the lower connecting plate 14 .

[0033] Reference Figure 1 and Figure 3 By setting the lower connecting plate 14 and the positioning hole 15, it is convenient to cooperate with the upper connecting plate 2 and the mounting hole 12 to fix the upper shell 1 and the lower shell 13, so as to isolate the battery pack from the external environment, thereby ensuring that the battery pack is in a safe working environment.

[0034] A first groove 16 is formed on one side of the top of the lower connecting plate 14 , and a second groove 17 is formed on the other side of the lower connecting plate 14 .

[0035] Reference Figure 3 By setting the first groove 16 and the second groove 17, good positioning and alignment functions can be provided, which facilitates the stacking and assembly of the upper shell 1 and the lower shell 13. At the same time, multiple sections block dust in the air, further protecting the battery pack from dust intrusion and increasing the safety of the battery.

[0036] An inner lining 18 is fixedly installed inside the lower shell 13 , and a base 19 is fixedly installed at the bottom of the inner lining 18 .

[0037] Reference Figure 3 and Figure 5 By providing the lining 18, additional physical protection and isolation functions are achieved, thereby reducing the impact of vibration or external impact on the battery, thereby further protecting the battery pack and improving the stability and reliability of the battery pack.

[0038] A plurality of ventilation holes 20 are provided on one side of the base 19 , and a partition plate 21 is fixedly mounted on the middle portion of the lining 18 .

[0039] Reference Figure 5 By setting the ventilation holes 20, the bottom ventilation function is achieved, which can help to evenly distribute the temperature inside the battery pack, further increase the cooling effect of the battery pack, and help improve the operating stability of the entire battery pack.

[0040] Working principle: When using this device, the battery pack is carried by the base 19, the battery pack is separated by the partition 21, the sealing strip 10 is carried by the first groove 16, the clamping strip 11 is carried by the second groove 17, the wire group for conducting the power of the battery pack is carried by the wiring tube 8, the sealing ring 9 is used to increase the airtightness of the wiring tube 8, and the fixing screws are used to connect the upper shell 1 and the lower shell 13 through the upper connecting plate 2, the mounting hole 12, the lower connecting plate 14, and the positioning hole 15. The high-temperature gas inside the packaging box is absorbed by the exhaust fan 5, the high-temperature gas is concentrated by the air cavity 6, and released from the inside of the packaging box through the exhaust pipe 7, the bottom of the battery pack is dispersed through the ventilation hole 20, and the battery pack is provided with additional protection by the lining 18.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A packaging box for a new energy vehicle power battery pack, characterized in that: The invention comprises an upper shell (1); upper connecting plates (2) are fixedly mounted on all four sides of the upper shell (1); a cavity (3) is provided at the bottom of the upper shell (1); a baffle (4) is fixedly mounted in the middle of the cavity (3); a plurality of exhaust fans (5) are fixedly mounted inside the baffle (4); an air cavity (6) is provided at the top of the baffle (4); and an exhaust pipe (7) is fixedly mounted on the top of the upper shell (1).

2. A packaging box for a new energy vehicle power battery pack according to claim 1, characterized in that: A wiring tube (8) is fixedly installed on the top of the upper shell (1), and a sealing ring (9) is fixedly installed inside the wiring tube (8).

3. A packaging box for a new energy vehicle power battery pack according to claim 2, characterized in that: A sealing strip (10) is fixedly mounted on one side of the bottom of the upper connecting plate (2), a clamping strip (11) is fixedly mounted on the other side of the bottom of the upper connecting plate (2), and a plurality of mounting holes (12) are provided on the top of the upper connecting plate (2).

4. A packaging box for a new energy vehicle power battery pack according to claim 3, characterized in that: The bottom of the upper shell (1) is threadedly connected to the lower shell (13), and lower connecting plates (14) are fixedly installed around the top of the lower shell (13), and a plurality of positioning holes (15) are opened on the top of the lower connecting plate (14).

5. A packaging box for a new energy vehicle power battery pack according to claim 4, characterized in that: A first groove (16) is provided on one side of the top of the lower connecting plate (14), and a second groove (17) is provided on the other side of the lower connecting plate (14).

6. A packaging box for a new energy vehicle power battery pack according to claim 5, characterized in that: An inner lining (18) is fixedly installed inside the lower shell (13), and a base (19) is fixedly installed at the bottom of the inner lining (18).

7. A packaging box for a new energy vehicle power battery pack according to claim 6, characterized in that: A plurality of ventilation holes (20) are provided on one side of the base (19), and a partition plate (21) is fixedly mounted on the middle portion of the lining (18).

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