Battery PACK assembly in new energy automobile

Abstract

The invention relates to the technical field of new energy automobiles, and discloses a battery PACK assembly in a new energy automobile, the battery PACK assembly comprises a battery PACK assembly main body, the battery PACK assembly main body comprises a battery mounting cover, a mounting cross beam and mounting clamping pieces, the battery mounting cover is used for mounting a battery box body, and the two mounting clamping pieces are welded to the two sides of the battery box body; the number of the installation cross beams is two, and the installation cross beams are matched with the installation clamping pieces and jointly used for fixing the battery installation cover and the battery box body. The protection mechanism is arranged and comprises the combination of the bottom protection plate and the buffer column, the absorption and relieving capacity of the battery PACK assembly when the battery PACK assembly is subjected to bottom impact is effectively enhanced, the risk of battery damage is greatly reduced, the driving safety of a new energy automobile under complex and changeable road conditions is improved through the design, and the service life of the new energy automobile is prolonged. And the service life of the battery is prolonged, and the maintenance cost caused by collision of the chassis is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and more specifically to a battery PACK assembly in a new energy vehicle. Background Art

[0002] With the increasing global attention to environmental protection and sustainable development, the new energy vehicle industry has ushered in unprecedented development opportunities. As the core component of new energy vehicles, the performance of the battery PACK assembly directly determines the cruising range, power output and safety of new energy vehicles. However, in practical applications, the battery PACK assembly faces challenges from many aspects, the most prominent of which is impact resistance. During the driving of new energy vehicles, chassis collisions occur from time to time due to complex and changeable road conditions. Traditional battery PACK assembly design often focuses more on the layout optimization of battery cells, energy density improvement and heat dissipation performance improvement, while the optimization of the bottom impact resistance is relatively insufficient. Therefore, in view of this, the existing structure and deficiencies are studied and improved, and a battery PACK assembly in new energy vehicles is provided, in order to achieve a more practical and valuable purpose. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a battery PACK assembly in a new energy vehicle to solve the problems existing in the above-mentioned background technology.

[0004] The present invention provides the following technical solutions: a battery PACK assembly in a new energy vehicle, comprising a battery PACK assembly body, wherein the battery PACK assembly body comprises a battery mounting cover, a mounting crossbeam and a mounting clamp, wherein the battery mounting cover is used to mount a battery box body, and two mounting clamps are welded on both sides of the battery box body; the number of the mounting crossbeams is two, which are adapted to the mounting clamps and are used together to fix the battery mounting cover and the battery box body; the battery box body comprises a box body and a detachably connected cover plate, and a battery module is also arranged inside the battery box body; a protective mechanism is arranged at the bottom end of the battery mounting cover, which is used to absorb and alleviate impact force when impacted, and protect the battery from damage, wherein the protective mechanism comprises a bottom protective plate and a buffer column connected between the bottom protective plate and the bottom end of the mounting clamp, and the buffer column comprises a damper and a shock-absorbing spring, and has good shock absorption and buffering properties.

[0005] Furthermore, an anti-rust coating is provided at the bottom end of the bottom protective plate to enhance the anti-corrosion performance of the bottom protective plate.

[0006] Furthermore, heat dissipation grooves are evenly provided on both sides of the battery box body to optimize the heat dissipation efficiency of the battery.

[0007] Furthermore, a detachable dustproof net is provided at the heat dissipation groove. The dustproof net adopts a double-layer structure, the inner layer is a fine mesh, which effectively blocks the entry of dust; the outer layer is a waterproof and breathable membrane, which further enhances the moisture-proof performance of the equipment.

[0008] Furthermore, the mounting crossbeam and the mounting clamps are connected by high-strength bolts to ensure the stability and reliability of the structure.

[0009] Furthermore, an insulating layer is provided on the inner wall of the battery box body to prevent the battery module from being damaged due to an accidental short circuit.

[0010] Furthermore, high thermal conductivity materials are filled between the battery modules and between the battery modules and the inner wall of the box to evenly distribute heat and accelerate the heat dissipation process. The high thermal conductivity material is a graphene composite material, and its excellent thermal conductivity helps to quickly and effectively transfer the heat generated by the battery module to the external environment.

[0011] Furthermore, the battery mounting cover is made of a lightweight and high-strength aluminum alloy material to reduce the overall weight while ensuring structural strength.

[0012] Furthermore, the mounting crossbeam and mounting clamps are made of stainless steel to enhance their corrosion resistance and structural stability under long-term use; the bottom protective plate is made of a high-strength and impact-resistant polypropylene composite material to provide additional protection and durability.

[0013] Technical effects and advantages of the present invention: 1. The present invention provides a protective mechanism, which includes a combination of a bottom protective plate and a buffer column, to effectively enhance the absorption and mitigation capabilities of the battery PACK assembly when subjected to bottom impact, thereby greatly reducing the risk of battery damage. This design not only improves the driving safety of new energy vehicles under complex and changeable road conditions, but also extends the service life of the battery and reduces the maintenance costs caused by chassis bumps.

[0014] 2. The present invention significantly enhances the corrosion resistance of the battery PACK assembly in harsh environments by adding an anti-rust coating to the bottom end of the bottom protective plate, prolongs the service life, and reduces the safety hazards and maintenance costs caused by corrosion.

[0015] Secondly, the design of the heat dissipation slots and the introduction of a double-layer dustproof net not only optimize the heat dissipation efficiency of the battery and ensure the stability of the battery under long-term high-load operation, but also effectively block the intrusion of dust and moisture, improve the moisture-proof and dust-proof performance of the equipment, and further ensure the safety of the battery system.

[0016] Furthermore, the mounting beams and mounting clips are connected with high-strength bolts, ensuring the stability and reliability of the battery PACK assembly structure, and maintaining the integrity and functionality of the battery system even under extreme working conditions.

[0017] In addition, the insulating layer set on the inner wall of the battery box effectively prevents the battery module from being damaged due to accidental short circuit, improving the safety of the battery system. The application of high thermal conductivity materials, such as graphene composite materials, further accelerates the conduction of heat generated by the battery module, optimizes the heat dissipation process, and improves the overall performance of the battery.

[0018] Finally, the battery mounting cover is made of lightweight and high-strength aluminum alloy material, which not only reduces the overall weight of the battery PACK assembly, improves the vehicle's energy efficiency and endurance, but also ensures the strength and durability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic three-dimensional diagram of the first structure of the present invention.

[0020] Figure 2 It is a schematic three-dimensional diagram of the second structure of the present invention.

[0021] Figure 3 It is a three-dimensional schematic diagram of the battery mounting cover structure of the present invention.

[0022] Figure 4 It is a schematic diagram of a three-dimensional disassembly of the battery box body structure of the present invention.

[0023] In the figure: 100, battery PACK assembly body; 110, battery mounting cover; 111, mounting beam; 112, mounting clamp; 113, box body; 114, battery module; 115, cover plate; 116, bottom protection plate; 117, buffer column; 118, anti-rust coating; 119, heat dissipation groove. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0025] Embodiment 1: The present invention provides a battery PACK assembly in a new energy vehicle, the core of which is the design of the battery PACK assembly body 100. The body is composed of three major parts: a battery mounting cover 110, a mounting crossbeam 111, and a mounting clamp 112, which together form a stable and easy-to-maintain battery mounting environment.

[0026] Battery mounting cover 110: As the bearing component of the battery box body, the battery mounting cover 110 is made of strong and durable materials to ensure that the battery can be effectively protected from external impact and vibration during the driving of the vehicle. Its design facilitates the installation and removal of the battery box body and is convenient for daily maintenance and replacement.

[0027] Mounting crossbeam 111: There are two mounting crossbeams 111, which cooperate with mounting clamps 112 to fix the battery mounting cover 110 and the battery box body. This design not only enhances the structural strength of the entire battery PACK assembly, but also ensures the stable position of the battery box body in the vehicle to prevent displacement due to bumps or collisions.

[0028] Mounting clamps 112: The mounting clamps 112 are welded on both sides of the battery box body to form reliable connection points with the mounting crossbeams 111. Their design takes into account the need for easy installation and removal, while ensuring the firmness and durability of the connection.

[0029] Battery box design The battery box body is the core component of the battery PACK assembly, including a box body 113, a detachably connected cover plate 115 and an internal battery module 114.

[0030] Box 113: As a container for the battery module, box 113 is made of high-strength, corrosion-resistant materials to ensure that the battery module can still work normally in harsh environments. Its design takes into account performance requirements such as waterproof and dustproof to extend the service life of the battery.

[0031] Cover plate 115: The cover plate 115 is fixed to the box body 113 by a reliable connection method (such as bolt connection, snap connection, etc.) to form a closed battery cavity. The cover plate is designed to be easy to open and close, and is convenient for maintenance and replacement of the battery module.

[0032] Battery module 114: Battery module 114 is the core component of the battery PACK assembly, responsible for storing and providing electrical energy. They are connected together in series or in parallel to form a battery pack to provide power for the vehicle.

[0033] Protection mechanism design In order to protect the battery from damage, a protection mechanism is provided at the bottom end of the battery mounting cover 110. The mechanism includes a bottom protection plate 116 and a buffer column 117 connected between the bottom protection plate 116 and the bottom end of the mounting clamp 112.

[0034] Bottom protection plate 116: The bottom protection plate 116 is made of high-strength and impact-resistant material, which can effectively absorb and alleviate the impact force when the vehicle collides or the bottom is impacted, thereby protecting the battery from damage.

[0035] Buffer column 117: Buffer column 117 includes a damper and a shock absorbing spring, and has good shock absorption and buffering performance. They can provide additional buffering when the bottom protection plate 116 is impacted, further protecting the safety of the battery. Example

[0036] Based on the first embodiment, the second embodiment further optimizes the design and improves the performance of the battery PACK assembly.

[0037] Anti-rust coating and heat dissipation slots Anti-rust coating 118: In order to enhance the anti-corrosion performance of the bottom protection plate 116, an anti-rust coating is provided at the bottom end of the bottom protection plate in the second embodiment. The coating can effectively prevent the corrosion of the bottom protection plate by corrosive substances such as water and salt, thereby extending its service life.

[0038] Heat dissipation slots 119: In order to optimize the heat dissipation efficiency of the battery, heat dissipation slots are evenly opened on both sides of the battery box body in Example 2. These slots allow air to circulate, taking away the heat generated by the battery module and reducing the operating temperature of the battery. At the same time, a detachable dustproof net is set at the heat dissipation slot to prevent dust and moisture from entering the battery box. The dustproof net adopts a double-layer structure, the inner layer is a fine mesh to effectively block dust from entering; the outer layer is a waterproof and breathable membrane to further enhance the moisture-proof performance of the equipment.

[0039] High-strength connection and insulation layer design High-strength bolt connection: In order to ensure the stability and reliability of the structure, the second embodiment uses high-strength bolts to connect the mounting crossbeam 111 and the mounting clamp 112. This connection method can withstand greater tension and shear force, ensuring the stability of the battery PACK assembly during vehicle driving.

[0040] Insulation layer design: In order to prevent the battery module from being damaged due to accidental short circuit, an insulation layer is set on the inner wall of the battery box body in embodiment 2. The insulation layer is made of a material with good insulation performance, which can effectively isolate the electrical connection between the battery module and the box body, ensuring the safe operation of the battery system.

[0041] Application of high thermal conductivity materials and lightweight materials High thermal conductivity material: In order to evenly distribute heat and accelerate the heat dissipation process, high thermal conductivity material is filled between the battery modules and between the battery modules and the inner wall of the box in Example 2. This material is a graphene composite material with excellent thermal conductivity, which helps to quickly and effectively transfer the heat generated by the battery module to the external environment.

[0042] Application of lightweight materials: In order to reduce the overall weight of the battery PACK assembly, the second embodiment uses lightweight and high-strength aluminum alloy material to make the battery mounting cover 110. This material not only has excellent mechanical properties, but also can significantly reduce the weight of the battery system and improve the energy efficiency and endurance of the vehicle.

[0043] Corrosion and impact resistant material selection Stainless steel material: In order to enhance the corrosion resistance and structural stability of the mounting crossbeam 111 and the mounting clamp 112 under long-term use, the second embodiment uses stainless steel to make these components. Stainless steel has good corrosion resistance and mechanical properties, and can ensure the stable operation of the battery PACK assembly in harsh environments.

[0044] Polypropylene composite material: The bottom protection plate 116 is made of a high-strength and impact-resistant polypropylene composite material. This material not only has excellent impact resistance, but also provides additional protection and durability to ensure that the battery can be effectively protected when it is impacted.

[0045] Finally, a few points should be explained: First, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left" and "right" are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may change; secondly, in the drawings of the embodiments disclosed in the present invention, only the structures involved in the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; finally, the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A battery PACK assembly in a new energy vehicle, comprising a battery PACK assembly body (100), characterized in that: The battery PACK assembly body (100) comprises a battery mounting cover (110), a mounting crossbeam (111) and a mounting clamp (112); the battery mounting cover (110) is used to mount a battery box body; two mounting clamps (112) are welded on both sides of the battery box body; the number of the mounting crossbeams (111) is two, which are adapted to the mounting clamps (112) and are used together to fix the battery mounting cover (110) and the battery box body; the battery box body comprises a box body (113) and a detachable connecting member (114). The battery box body is provided with a cover plate (115) connected thereto, and a battery module (114) is also arranged inside the battery box body; a protective mechanism is arranged at the bottom end of the battery mounting cover (110) for absorbing and alleviating impact force when impacted, thereby protecting the battery from damage; the protective mechanism comprises a bottom protective plate (116) and a buffer column (117) connected between the bottom protective plate (116) and the bottom end of the mounting clamp (112); the buffer column (117) comprises a damper and a shock absorbing spring, and has good shock absorbing and buffering performance.

2. The battery PACK assembly in a new energy vehicle according to claim 1, characterized in that: The bottom end of the bottom protection plate (116) is provided with an anti-rust coating (118) to enhance the anti-corrosion performance of the bottom protection plate (116).

3. The battery PACK assembly in a new energy vehicle according to claim 1, characterized in that: Heat dissipation grooves (119) are evenly provided on both sides of the battery box body to optimize the heat dissipation efficiency of the battery.

4. The battery PACK assembly in a new energy vehicle according to claim 3, characterized in that: A detachable dustproof net is provided at the heat dissipation slot (119), and the dustproof net adopts a double-layer structure, with the inner layer being a fine mesh to effectively block dust from entering; and the outer layer being a waterproof and breathable membrane to further enhance the moisture-proof performance of the device.

5. The battery PACK assembly in a new energy vehicle according to claim 1, characterized in that: The mounting crossbeam (111) and the mounting clamp (112) are connected by high-strength bolts to ensure the stability and reliability of the structure.

6. The battery PACK assembly in a new energy vehicle according to claim 1, characterized in that: An insulating layer is provided on the inner wall of the battery box body to prevent the battery module (114) from being damaged due to an accidental short circuit.

7. The battery PACK assembly in a new energy vehicle according to claim 1, characterized in that: High thermal conductivity materials are filled between the battery modules (114) and between the battery modules (114) and the inner wall of the box body (113) to evenly distribute heat and accelerate the heat dissipation process.

8. The battery PACK assembly in a new energy vehicle according to claim 1, characterized in that: The battery installation cover (110) is made of a lightweight and high-strength aluminum alloy material to reduce the overall weight while ensuring structural strength.

9. The battery PACK assembly in a new energy vehicle according to claim 1, characterized in that: The mounting crossbeam (111) and the mounting clamp (112) are both made of stainless steel to enhance their corrosion resistance and structural stability under long-term use; the bottom protection plate (116) is made of a high-strength and impact-resistant polypropylene composite material to provide additional protection and durability.

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