New energy battery automobile box body with good heat dissipation effect

Abstract

The utility model relates to the technical field of new energy battery box bodies, in particular to a new energy battery automobile box body with a good heat dissipation effect, which comprises a shell, a plurality of groups of cushion blocks are arranged in the shell, the top ends of the cushion blocks are provided with a heat dissipation structure through an installation structure, and the top ends of two rows of cushion blocks in the same group are provided with the same water cooling plate. A plurality of first heat dissipation fins are welded to the bottom end of the water cooling plate at equal intervals, a plurality of second heat dissipation fins are welded between every two adjacent first heat dissipation fins at equal intervals, the first heat dissipation fins are perpendicular to the second heat dissipation fins, and the bottom ends of the first heat dissipation fins and the bottom ends of the second heat dissipation fins abut against the shell. A battery module is mounted at the top end of the water cooling plate. The first heat dissipation fins and the second heat dissipation fins are welded to the bottom of the water cooling plate, so that the heat dissipation efficiency is effectively improved, the water cooling plate is well supported, and the installation stability of the water cooling plate can be enhanced.

Description

Technical Field

[0001] This utility model relates to a new energy battery vehicle housing, specifically a new energy battery vehicle housing with good heat dissipation, and belongs to the field of new energy battery housing technology. Background Technology

[0002] The battery box of a new energy vehicle is a key component of the battery system. It is usually made of high-strength and lightweight materials. The battery box includes an upper cover, a lower shell, and a water-cooling plate. The lower shell of a traditional new energy battery box usually has a pad installed inside. The water-cooling plate is fixed to the pad with bolts, and then the battery module is installed on top of the water-cooling plate. The water-cooling plate can effectively remove the heat generated by the battery during charging and discharging, thereby improving the battery performance and safety.

[0003] However, the installation method of supporting the water-cooled plate with pads has limitations due to the limited distribution of pads and the small contact area with the water-cooled plate. When the vehicle vibrates, the bottom of the water-cooled plate is only supported by the pads, and the force is concentrated at the contact point. This leads to uneven stress on the water-cooled plate, which can cause localized stress concentration and accelerated deformation, damaging its structural integrity. This, in turn, affects the cooperation between the water-cooled plate and other components, reduces the performance of the cooling system, and relies solely on air convection between the water-cooled plate and the lower casing for heat dissipation, resulting in relatively low heat dissipation efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a new energy battery vehicle housing with good heat dissipation in order to solve the above problems. By welding a first heat dissipation fin and a second heat dissipation fin to the bottom of the water-cooled plate, the heat dissipation efficiency is effectively improved, and the water-cooled plate is well supported, which can enhance the stability of the water-cooled plate installation.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a new energy battery vehicle housing with good heat dissipation effect, including a shell, with multiple sets of pads installed inside the shell, and a heat dissipation structure installed on the top of each pad through an installation structure. The heat dissipation structure includes a water-cooled plate, with the same water-cooled plate placed on the top of two rows of pads in the same set. Multiple first heat dissipation fins are welded at equal intervals to the bottom of the water-cooled plate, and multiple second heat dissipation fins are welded at equal intervals between two adjacent first heat dissipation fins. The multiple first heat dissipation fins and the multiple second heat dissipation fins are arranged perpendicularly, and the bottom ends of the first heat dissipation fins and the second heat dissipation fins are in contact with the shell. A set of battery modules is installed on the top of the water-cooled plate.

[0006] Preferably, the first heat dissipation fin has a plurality of first through holes at equal intervals, and the second heat dissipation fin has a second through hole, wherein the first through holes and the second through holes are interconnected.

[0007] Preferably, a pipe is installed between two adjacent water-cooled plates, with an inlet on one side of the water-cooled plate and an outlet on the other side of the water-cooled plate.

[0008] Preferably, a partition is provided between two adjacent sets of pads, and the partition is fixedly connected to the housing.

[0009] Preferably, the mounting structure includes positioning posts, and multiple sets of positioning posts are fixedly connected inside the housing. Two rows of first positioning holes are provided on the water-cooling plate, and second positioning holes are provided at both ends of the battery module. The first positioning holes communicate with the adjacent second positioning holes, and the positioning posts are simultaneously inserted into the first positioning holes and the second positioning holes.

[0010] Preferably, the multiple sets of positioning posts are arranged at equal intervals, and the top of each positioning post has a frustum-shaped structure.

[0011] Preferably, the pad has two screw holes, the water cooling plate has two rows of first through holes, and the battery module has second through holes at both ends. The screw holes are connected to the corresponding first and second through holes.

[0012] Preferably, a cover is bolted to the top of the housing, two positioning rods are fixedly connected to the cover, and two positioning grooves are formed on the housing, with the positioning rods inserted into the positioning grooves.

[0013] Preferably, a rubber pad is fixedly connected to the bottom end of the lid, and the rubber pad abuts against the shell.

[0014] The beneficial effects of this utility model are as follows: A single water-cooled plate is placed on top of two rows of pads in the same group. Multiple first heat dissipation fins are welded equidistantly to the bottom of the water-cooled plate. Multiple second heat dissipation fins are welded equidistantly between adjacent first heat dissipation fins. The multiple first and second heat dissipation fins are arranged perpendicularly. The bottom ends of both the first and second heat dissipation fins abut against the housing. A battery module is mounted on top of the water-cooled plate. By welding the first and second heat dissipation fins to the bottom of the water-cooled plate, the heat generated by the battery module can be quickly transferred to the housing, effectively improving heat dissipation efficiency. Furthermore, the first and second heat dissipation fins work together to provide good support for the water-cooled plate, enhancing the stability of the water-cooled plate installation and reducing displacement and deformation caused by vehicle vibration, further ensuring the reliability and safety of the heat dissipation system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the partition and the shell of this utility model;

[0017] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A.

[0018] Figure 4 This is a schematic diagram of the connection structure between the shell and the positioning post of this utility model;

[0019] Figure 5 for Figure 4 The diagram shown is an enlarged view of the structure of section B.

[0020] Figure 6 This is a schematic diagram of the connection structure between the shell and the pad of this utility model;

[0021] Figure 7 This is a schematic diagram of the connection structure between the water-cooled plate and the pipe of this utility model;

[0022] Figure 8 This is a schematic diagram of the connection structure between the first heat dissipation fin and the second heat dissipation fin of this utility model.

[0023] In the diagram: 1. Shell; 2. Partition; 3. Pad; 4. Mounting structure; 401. Positioning post; 402. First positioning hole; 403. Second positioning hole; 404. Screw hole; 405. First through hole; 406. Second through hole; 5. Heat dissipation structure; 501. Water-cooled plate; 502. First heat dissipation fin; 503. Second heat dissipation fin; 504. First through hole; 505. Second through hole; 506. Pipe; 507. Water inlet; 508. Water outlet; 6. Battery module; 7. Cover; 8. Positioning rod; 9. Positioning groove; 10. Rubber pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-8As shown, a new energy battery vehicle housing with good heat dissipation includes a shell 1. Multiple sets of pads 3 are installed inside the shell 1. A heat dissipation structure 5 is installed on the top of the pads 3 through an installation structure 4. The heat dissipation structure 5 includes a water-cooled plate 501. The top of the two rows of pads 3 in the same set is placed on the same water-cooled plate 501. Multiple first heat dissipation fins 502 are welded at equal intervals to the bottom of the water-cooled plate 501. Multiple second heat dissipation fins 503 are welded at equal intervals between two adjacent first heat dissipation fins 502. The multiple first heat dissipation fins 502 and the multiple second heat dissipation fins 503 are arranged perpendicularly. The bottom ends of the first heat dissipation fins 502 and the second heat dissipation fins 503 are in contact with the shell 1. A set of battery modules 6 is installed on the top of the water-cooled plate 501.

[0026] As a technical optimization of this utility model, the first heat dissipation fin 502 is provided with a plurality of first through holes 504 at equal intervals, and the second heat dissipation fin 503 is provided with second through holes 505. The first through holes 504 and the second through holes 505 are interconnected, which can increase the air circulation area and enhance convective heat dissipation, thereby improving the overall heat dissipation efficiency and system performance of the enclosure. A pipe 506 is installed between two adjacent water-cooled plates 501. One side of the water-cooled plate 501 is provided with an inlet 507, and the other side of the water-cooled plate 501 is provided with an outlet 508. Adjacent water-cooled plates 501 are connected by pipes 506 and provided with inlet 507 and outlet 508 to form a continuous coolant circulation path, which can realize the efficient flow of coolant between multiple water-cooled plates 501 and uniformly remove heat, significantly improving the overall heat dissipation effect and stability of the battery module 6.

[0027] As a technical optimization of this utility model, a partition 2 is provided between two adjacent sets of pads 3. The partition 2 is fixedly connected to the shell 1. The partition 2 can play a positioning role for the battery module 6, effectively preventing the battery module 6 from colliding with each other due to shaking during vehicle operation and causing damage. In addition, the partition 2 can also play a reinforcing role, increasing the strength and stability of the shell 1.

[0028] As a technical optimization of this utility model, the installation structure 4 includes positioning posts 401. Multiple sets of positioning posts 401 are fixedly connected inside the housing 1. These positioning posts 401 are equidistant from each other. The top of each positioning post 401 has a frustum-shaped structure, providing good guidance and facilitating insertion of the positioning post 401 into the first positioning hole 402 and the second positioning hole 403. The water-cooling plate 501 has two rows of first positioning holes 402, and both ends of the battery module 6 have second positioning holes 403. The first positioning holes 402 communicate with adjacent second positioning holes 403. The positioning posts 401 are simultaneously inserted into both the first positioning holes 402 and the second positioning holes 403. In use, the first positioning holes 402 of the water-cooling plate 501 and the second positioning holes 403 of the battery module 6 are aligned with the housing 1. The positioning post 401 is inserted into the spacer to quickly and accurately position the water-cooled plate 501 and the battery module 6, facilitating later fixing of the water-cooled plate 501 and the battery module 6 with bolts. The spacer 3 has two screw holes 404, the water-cooled plate 501 has two rows of first through holes 405, and the battery module 6 has second through holes 406 at both ends. The screw holes 404 are connected to the corresponding first through holes 405 and second through holes 406. In use, the bolts are passed through the second through holes 406 of the battery module 6 and the first through holes 405 of the water-cooled plate 501 in sequence, and screwed into the screw holes 404 of the spacer 3. This can firmly connect the battery module 6, the water-cooled plate 501 and the spacer 3, ensuring the stability of the three parts, preventing the parts from shifting due to vehicle vibration, and ensuring the stable operation of the heat dissipation system and the battery module 6.

[0029] As a technical optimization of this utility model, a box cover 7 is bolted to the top of the housing 1. Two positioning rods 8 are fixedly connected to the box cover 7. Two positioning grooves 9 are opened on the housing 1. The positioning rods 8 are inserted into the positioning grooves 9. In use, the positioning rods 8 on the box cover 7 are first inserted into the positioning grooves 9 of the housing 1 for positioning. Then, the box cover 7 is installed on the top of the housing 1 with bolts. This can quickly and accurately install the box cover 7, enhance the stability of the connection between the box cover 7 and the housing 1, and thus better protect the internal components of the box. A rubber pad 10 is fixedly connected to the bottom of the box cover 7. The rubber pad 10 abuts against the housing 1. The rubber pad 10 can enhance the sealing between the box cover 7 and the housing 1, and play a role in shock absorption, buffering and preventing dust, water vapor and other substances from entering the interior of the housing 1.

[0030] In use, the water-cooled plate 501 is first moved above the housing 1, and the first positioning hole 402 on the water-cooled plate 501 is aligned with the corresponding positioning post 401 inside the housing 1. Then, the water-cooled plate 501 is placed downwards, so that it rests on the top of the pad 3, and the positioning post 401 is simultaneously inserted into the first positioning hole 402. The insertion of the positioning post 401 into the first positioning hole 402 provides initial positioning for the water-cooled plate 501, thereby aligning the first through hole 405 on the water-cooled plate 501 with the screw hole 404 on the pad 3, facilitating the subsequent bolt fixing of the water-cooled plate 501. A pipe 506 is installed between two adjacent water-cooled plates 501, and a water inlet 5 on one side of the water-cooled plate 501 is provided. 07 connects to the coolant inlet pipe, and the outlet 508 on the other side of the water-cooled plate 501 connects to the coolant outlet pipe, forming a coolant circulation loop to remove the heat generated by the water-cooled plate 501 and the battery module 6. Then, the first heat dissipation fins 502, equidistantly welded to the bottom of the water-cooled plate 501, and the second heat dissipation fins 503 welded between adjacent first heat dissipation fins 502, all contact the housing 1, enhancing the heat dissipation effect on the battery module 6. The first through holes 504 on the first heat dissipation fins 502 and the second through holes 505 on the second heat dissipation fins 503 are interconnected, facilitating airflow and improving the heat dissipation effect of the new energy battery box. Furthermore, the first heat dissipation fins 502 and the second heat dissipation fins 503... The cooperation of the pads 3 provides good support for the water-cooled plate 501, effectively preventing uneven stress caused by the limited distribution and small contact area of ​​the pads 3, stress concentration caused by vehicle vibration, and deformation caused by factors such as its own mass and thermal deformation differences, thereby increasing the stability of the water-cooled plate 501. Next, the battery module 6 is installed on the top of the water-cooled plate 501. The battery module 6 has a second positioning hole 403 and a second through hole 406 at both ends. The second positioning hole 403 is aligned with the end of the positioning post 401. The second positioning hole 403 is inserted into the end of the positioning post 401 by the guiding effect of the frustum-shaped structure at the top of the positioning post 401, thereby further fixing the position of the battery module 6. Then, the bolts are inserted in sequence. Through the second through hole 406, the first through hole 405, and the screw hole 404, tighten the bolts to securely connect the pad 3, the water-cooling plate 501, and the battery module 6, thus ensuring that the water-cooling plate 501 and the battery module 6 are installed firmly and stably. Next, lift the cover 7 and move it to the top of the housing 1. Then, insert the positioning rod 8 on the cover 7 into the positioning groove 9 on the housing 1 to quickly and initially position the cover 7, ensuring that the cover 7 is installed in an accurate position. Then, use bolts to further fix the cover 7 to the top of the housing 1. When the cover 7 and the housing 1 are connected by bolts, the rubber pad 10 abuts against the housing 1, thereby enhancing the sealing of the housing and preventing external dust, moisture, etc. from entering. At the same time, it provides a certain buffer protection for the internal components.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new energy vehicle battery box with good heat dissipation effect, comprising a shell (1), characterized in that: A plurality of groups of cushion blocks (3) are installed in the shell (1), the top ends of the cushion blocks (3) are provided with heat dissipation structures (5) through mounting structures (4), the heat dissipation structures (5) comprise water cooling plates (501), the same group of two rows of top ends of the cushion blocks (3) are provided with the same water cooling plate (501), the bottom end of the water cooling plate (501) is equidistantly welded with a plurality of first heat dissipation fins (502), a plurality of second heat dissipation fins (503) are equidistantly welded between adjacent two first heat dissipation fins (502), a plurality of first heat dissipation fins (502) and a plurality of second heat dissipation fins (503) are vertically arranged, the bottom ends of the first heat dissipation fins (502) and the second heat dissipation fins (503) are in contact with the shell (1), and a group of battery modules (6) are installed at the top end of the water cooling plate (501). ​ 2. The new energy vehicle battery box with good heat dissipation effect according to claim 1, characterized in that: A plurality of first through holes (504) are equidistantly arranged on the first heat dissipation fin (502), and a second through hole (505) is arranged on the second heat dissipation fin (503), and the first through hole (504) and the second through hole (505) are in communication with each other.

3. The new energy vehicle battery box with good heat dissipation effect according to claim 1, characterized in that: A pipeline (506) is installed between adjacent two water cooling plates (501), one side of the water cooling plate (501) is provided with a water inlet (507), and the other side of the water cooling plate (501) is provided with a water outlet (508).

4. The new energy vehicle battery box with good heat dissipation effect according to claim 1, characterized in that: A partition plate (2) is arranged between adjacent two groups of cushion blocks (3), and the partition plate (2) is fixedly connected with the shell (1).

5. The new energy vehicle battery box with good heat dissipation effect according to claim 1, characterized in that: The mounting structure (4) comprises a positioning column (401), a plurality of positioning columns (401) are fixedly connected in the shell (1), two rows of first positioning holes (402) are formed in the water cooling plate (501), second positioning holes (403) are formed at both ends of the battery module (6), the first positioning hole (402) is in communication with the adjacent second positioning hole (403), and the positioning column (401) is inserted into the first positioning hole (402) and the second positioning hole (403) at the same time.

6. The new energy vehicle battery box with good heat dissipation effect according to claim 5, characterized in that: A plurality of groups of the positioning column (401) are equidistantly arranged, and the top end of the positioning column (401) is in a circular truncated cone structure.

7. The new energy vehicle battery box with good heat dissipation effect according to claim 4, characterized in that: Two screw holes (404) are formed in the cushion block (3), two rows of first penetrating holes (405) are formed in the water cooling plate (501), and second penetrating holes (406) are formed at both ends of the battery module (6), and the screw hole (404) is in communication with the corresponding first penetrating hole (405) and second penetrating hole (406).

8. The new energy vehicle battery box with good heat dissipation effect according to claim 1, characterized in that: A box cover (7) is installed at the top end of the shell (1) through bolts, two positioning rods (8) are fixedly connected to the box cover (7), two positioning grooves (9) are formed in the shell (1), and the positioning rod (8) is inserted into the positioning groove (9).

9. The new energy vehicle battery box with good heat dissipation effect according to claim 8, characterized in that: A rubber pad (10) is fixedly connected to the bottom end of the box cover (7) and is in contact with the shell (1).

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