Foam combination structure for enhancing modality of battery box cover

Abstract

The utility model relates to the technical field of battery box covers, and discloses a foam combination structure for enhancing the modality of a battery box cover, which comprises a battery box cover body, at least three groups of integrally formed reinforcing parts are arranged at the top of an inner cavity of the battery box cover body, and at least three groups of mounting grooves are formed in the at least three groups of reinforcing parts; a bonding part is arranged in the middle of each group of mounting grooves, and EPP foam is bonded on the bonding parts; through the cooperation of the battery box cover body, the reinforcing part, the bonding part and the EPP foam, the battery box cover body is in interference fit with the battery module after being tightly covered, the modality of the box cover is effectively improved, meanwhile, the strength of the module in the Z-axis direction can be improved, the EPP foam effectively plays a buffering role in the whole vehicle transportation process, the problem of abnormal sound of the box cover is solved, and the service life of the battery box cover is prolonged. Meanwhile, the box cover is provided with the silk-screen positioning lines, the mounting process is simple and reliable, the EPP foam is uniformly attached to the box cover in a multi-block manner, and the overall strength of the battery pack is improved in a low-cost manner.

Description

Technical Field

[0001] The utility model relates to the technical field of battery box covers, in particular to a foam combination structure for enhancing the mode of a battery box cover. Background Art

[0002] With the advancement of technology, electric vehicles have become a common means of transportation in people's daily lives. For example, electric cars have become a primary choice for people to travel. Usually, electric vehicles are equipped with battery boxes, which provide electric energy and power to the electric vehicles;

[0003] In the related art, a battery box includes a box shell, a battery module and a battery box cover. The box shell has an opening, and the opening on the box shell is blocked by the battery box cover, so that the battery box cover and the box shell form a closed space, and the battery module is enclosed in the box shell;

[0004] The battery box cover is one of the key components in the battery box. Its lightweight degree directly affects the energy density of the battery box. Its strength reliability and impact resistance also directly affect the reliability and safety of the battery box. However, sheet metal is often used to produce the box cover in the prior art. Since the sheet metal box cover is designed to be thin, the modal strength is generally low, and the box cover will have abnormal noise problems during transportation of the whole vehicle. Therefore, we need to propose a foam combination structure that enhances the modality of the battery box cover. Utility Model Content

[0005] The purpose of the utility model is to provide a foam combination structure for enhancing the mode of a battery box cover, improve the box cover mode, solve the problem of vibration and abnormal noise, and solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foam combination structure for enhancing the modality of a battery box cover, comprising a battery box cover body, wherein at least three groups of integrally formed reinforcement parts are arranged on the top of the inner cavity of the battery box cover body, at least three groups of mounting grooves are opened on at least three groups of the reinforcement parts, and a bonding part is arranged in the middle of each group of mounting grooves, and EPP foam is bonded to the bonding part, the thickness of at least three groups of the EPP foams are the same, and at least three groups of the EPP foams are arranged at equal intervals.

[0007] Preferably, a docking side plate is integrally formed along the edge of the lower surface of the battery box cover body, and a plurality of groups of connecting through holes are provided on the upper surface of the docking side plate.

[0008] Preferably, a positioning frame is integrally formed along the edge of the lower surface of the butt-jointed side plate, and the cross section of the positioning frame is arranged in the form of a rectangular frame.

[0009] Preferably, the plurality of groups of connecting through holes are arranged in a rectangular array, and two adjacent groups of connecting through holes are arranged at equal intervals.

[0010] Preferably, at least three groups of rectangular grooves are formed on the upper surface of the battery box cover body, and the at least three groups of rectangular grooves are respectively arranged above the at least three groups of reinforcement parts.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model mainly cooperates between the battery box cover body, the reinforcement part, the bonding part and the EPP foam. After the battery box cover body is tightly closed, it has an interference fit with the battery module, which not only effectively improves the mode of the box cover, but also increases the strength of the module in the Z-axis direction. The EPP foam effectively plays a buffering role during the transportation of the whole vehicle, solves the abnormal noise of the box cover, and at the same time, the box cover has a positioning line silk-screened, the installation process is simple and reliable, and the EPP foam is divided into multiple pieces and evenly arranged on the box cover, which adopts a low-cost way to improve the overall strength of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above.

[0016] In the figure: 1. Battery box cover body; 2. Rectangular groove; 3. Docking side plate; 4. Positioning card frame; 5. Connecting through hole; 6. Reinforcement part; 7. Mounting groove; 8. EPP foam; 9. Adhesive part. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3 The utility model provides a technical solution: a foam combination structure for enhancing the mode of a battery box cover, comprising a battery box cover body 1, wherein at least three groups of integrally formed reinforcing parts 6 are arranged on the top of the inner cavity of the battery box cover body 1, at least three groups of mounting grooves 7 are opened on at least three groups of reinforcing parts 6, and a bonding part 9 is arranged in the middle of each group of mounting grooves 7, and EPP foam 8 is bonded to the bonding part 9, the thickness of at least three groups of EPP foam 8 is the same, and at least three groups of EPP foam 8 are arranged at equal intervals.

[0019] The lower surface of the battery box cover body 1 is integrally formed with a docking side plate 3 along the edge, and the upper surface of the docking side plate 3 is provided with multiple groups of connecting through holes 5. The docking side plate 3 is convenient for docking with the shell containing the battery module, thereby facilitating and quickly installing the battery module, and is fixed to the battery shell by connecting screws penetrating the connecting through holes 5.

[0020] A positioning frame 4 is integrally formed along the lower surface of the docking side plate 3. The cross section of the positioning frame 4 is a rectangular frame. The positioning frame 4 facilitates the rapid positioning of the battery box cover body 1, thereby facilitating the packaging of the battery module and improving the installation efficiency.

[0021] The plurality of groups of connecting through holes 5 are arranged in a rectangular array, and two adjacent groups of connecting through holes 5 are arranged at equal intervals. The connecting through holes 5 facilitate the connection of screws to fix the battery box cover body 1 and the battery shell, thereby improving the stability of the battery module after installation.

[0022] At least three groups of rectangular grooves 2 are formed on the upper surface of the battery box cover body 1, and the at least three groups of rectangular grooves 2 are respectively arranged above at least three groups of reinforcement parts 6. The positions where the rectangular grooves 2 are opened are the positions of the reinforcement parts 6, which facilitates the quick search for the bonding positions of the EPP foam 8, thereby improving the bonding efficiency of the EPP foam 8.

[0023] When in use, the EPP foam 8 is fixed to the bonding part 9 of the battery box cover body 1 with a single-sided adhesive. The box cover is assembled so that the battery box cover body 1 is tightly closed and has an interference fit with the module. The EPP foam 8 is sandwiched between the box cover and the module to play a supporting and buffering role, thereby reducing abnormal noise between the battery box cover body 1 and the battery module.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foam composite structure for enhancing the modality of a battery box cover, comprising a battery box cover body (1), characterized in that: At least three groups of integrally formed reinforcement parts (6) are arranged at the top of the inner cavity of the battery box cover body (1), at least three groups of mounting grooves (7) are opened on the at least three groups of reinforcement parts (6), and a bonding part (9) is arranged in the middle of each group of mounting grooves (7), and EPP foam (8) is bonded to the bonding part (9), the thickness of the at least three groups of EPP foam (8) is the same, and the at least three groups of EPP foam (8) are arranged at equal intervals.

2. The foam composite structure for enhancing the modality of a battery box cover according to claim 1, characterized in that: A docking side plate (3) is integrally formed along the edge of the lower surface of the battery box cover body (1), and a plurality of groups of connecting through holes (5) are provided on the upper surface of the docking side plate (3).

3. The foam composite structure for enhancing the mode of the battery box cover according to claim 2, characterized in that: A positioning card frame (4) is integrally formed along the edge of the lower surface of the butt-jointed side plate (3), and the cross section of the positioning card frame (4) is arranged in the form of a rectangular frame.

4. The foam composite structure for enhancing the modality of a battery box cover according to claim 3, characterized in that: The plurality of groups of connecting through holes (5) are arranged in a rectangular array, and two adjacent groups of connecting through holes (5) are arranged at equal intervals.

5. The foam composite structure for enhancing the modality of a battery box cover according to claim 4, characterized in that: The upper surface of the battery box cover body (1) is provided with at least three groups of rectangular grooves (2), and the at least three groups of rectangular grooves (2) are respectively arranged above the at least three groups of reinforcement parts (6).

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