Backup battery module cooling device

Abstract

The utility model relates to the technical field of battery thermal management, and discloses a heat dissipation device for a backup battery module, including a battery box with a battery module placed inside, an axial flow fan is arranged at the top center of the battery box, and the axial flow fan is used to extract the hot air in the battery box; a ventilation grille is arranged at the bottom of the side of the battery box; an air induction part is arranged in the battery box, and the air induction part is arranged in a trumpet shape and its trumpet mouth is arranged in a direction away from the axial flow fan. The heat dissipation device for the backup battery module starts the axial flow fan, and the cold air at the bottom of the battery box passes through the ventilation grille and the trumpet-shaped air induction part to form a cyclone, and the heat of the battery module is quickly taken away by the cyclone. The heat dissipation device for the backup battery module has a simple structure and high heat dissipation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of battery thermal management, in particular to a heat dissipation device for a backup battery module. Background Art

[0002] With the popularization of energy storage concepts and the continuous expansion of application areas, the demand for backup power supplies such as base stations is increasing, which has promoted the attention of thermal management of backup battery modules. Backup battery modules are composed of multiple single cells, and their performance and safety are affected by temperature. Effective thermal management can not only ensure the performance of the battery module and extend its life, but also prevent thermal runaway, thereby ensuring the safety of the system.

[0003] At present, the common heat dissipation structures of backup battery modules on the market mainly include natural heat dissipation, forced air cooling and liquid cooling. The natural heat dissipation method is simple and reliable, but the heat dissipation effect is limited. The liquid cooling method has a high heat dissipation efficiency, but the structure is complex, the cost is high and the maintenance is difficult. The forced air cooling structure accelerates heat transfer by forcing air flow through the fan, and the heat dissipation effect is good, but in a high temperature environment, it is necessary to increase the number of fans to improve the heat dissipation effect. Although it can help heat dissipation to a certain extent, it increases the cost and the traditional direct blowing air duct is difficult to ensure that the airflow is evenly distributed inside the backup battery module, resulting in low heat dissipation efficiency of the backup battery module. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a heat dissipation device for a backup battery module. The heat dissipation device for the backup battery module has a simple structure, low cost, and can quickly achieve conventional heat dissipation of the backup battery module.

[0005] In order to achieve the above object, the utility model provides a standby battery module heat dissipation device, comprising a battery box in which a battery module is placed, an axial flow fan is arranged at the top center of the battery box, and the axial flow fan is used to extract the hot air in the battery box;

[0006] A ventilation grille is provided at the bottom of the side of the battery box;

[0007] The battery plug box is provided with an air induction portion, which is arranged in a trumpet shape and has a trumpet mouth facing a direction away from the axial flow fan.

[0008] In some embodiments, a fin cooling platform fixedly connected to the bottom of the battery plug-in box is disposed inside the battery plug-in box, and the fin cooling platform is fixedly connected to the bottom of the battery module.

[0009] In some embodiments, the fin cooling platform includes a flat heat sink, a plurality of fins are provided on one side surface of the heat sink, and the fin cooling platform fits tightly with the battery module.

[0010] In some embodiments, the plurality of fins located on the fin cooling platform are spaced apart in a circumferential direction around the air induction portion, and are spaced apart in a plurality of groups in a direction away from the air induction portion.

[0011] In some embodiments, two fin cooling platforms are provided, and the two fin cooling platforms are symmetrically arranged on both sides of the air induction part.

[0012] In some embodiments, a top diameter of the trumpet peak of the air induction portion is smaller than or equal to a shaft diameter of the axial flow fan.

[0013] In some embodiments, a plurality of the ventilation grilles are provided, and the plurality of the ventilation grilles are arranged in a rectangular shape and in a linearly symmetrical arrangement.

[0014] In some embodiments, the height at which the ventilation grille is arranged does not exceed the height at which the fin cooling platform is arranged.

[0015] In some embodiments, the bottom shell of the battery insert box is configured to be in the shape of a trumpet peak that protrudes toward the interior of the battery insert box.

[0016] In some embodiments, the fin cooling platform is detachably connected to the bottom of the battery box via riveting studs.

[0017] Through the above technical scheme, the standby battery module heat dissipation device provided by the utility model starts the axial flow fan, and the cold air at the bottom of the battery plug-in box forms a cyclone through the ventilation grille and the trumpet-shaped air inlet part, and the heat of the battery module is quickly taken away by the cyclone. The standby battery module heat dissipation device has a simple structure, low cost, and can quickly realize conventional heat dissipation of the standby battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a heat dissipation device for a backup battery module provided by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a heat dissipation device for a backup battery module provided by the utility model;

[0020] Figure 3 The utility model discloses a schematic diagram of a fin cooling platform structure of a heat dissipation device for a backup battery module.

[0021] Description of Reference Numerals

[0022] 1. Battery plug box; 11. Air inlet; 12. Riveted studs; 2. Axial flow fan; 3. Ventilation grille; 4. Fin cooling platform; 41. Fin; 5. Battery module. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0024] In the present invention, unless otherwise stated, the terms "near", "far", "inside", "outside" and the like indicating positions or positional relationships are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] In addition, words such as “include” or “comprises” and the like used in the present invention mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of also including other elements.

[0026] Combination Figure 1 and Figure 2 As shown, the utility model provides a standby battery module heat dissipation device, comprising a battery box 1 in which a battery module 5 is placed, an axial flow fan 2 is arranged at the top center of the battery box 1, and the axial flow fan 2 is used to extract the hot air in the battery box 1;

[0027] A ventilation grille 3 is provided at the bottom of the side of the battery box 1;

[0028] The battery box 1 is provided with an air induction portion 11 . The air induction portion 11 is configured in a trumpet shape and its trumpet mouth is configured to face a direction away from the axial flow fan 2 .

[0029] In the utility model, the heat dissipation device of the backup battery module combines an axial flow fan 2, a ventilation grille 3 and an air induction part 11 to achieve an effective and rapid heat dissipation effect. Specifically, when the axial flow fan 2 is started, it draws hot air out of the battery plug box to reduce the temperature of the battery module 5. At the same time, a ventilation grille 3 is provided at the bottom of the side of the battery plug box to help introduce fresh cold air, and the design of the air induction part 11 cooperates with the axial flow fan 2 to guide the cold air to form a cyclone, so that it can more effectively contact the battery module 5 and take away the heat. This structure is simple and effective, which not only reduces the cost, but also can quickly meet the conventional heat dissipation requirements of the backup battery module. Therefore, the heat dissipation device can effectively improve the heat dissipation efficiency of the backup battery module.

[0030] Furthermore, if Figure 2 As shown, the battery box 1 is provided with a fin cooling platform 4 fixedly connected to the bottom of the battery box 1, and the fin cooling platform 4 is fixedly connected to the bottom of the battery module 5. The fin cooling platform 4 is in contact with the battery module 5, and effectively conducts the heat generated by the battery module 5 to the fin cooling platform 4, which helps to speed up the transmission and dispersion of heat and improve the heat dissipation effect. The design of the fin cooling platform 4 can help air circulation, so that the cold air in the surrounding environment can more easily contact the battery module 5 and take away the heat generated by it, which also helps to improve the heat dissipation efficiency. The material for manufacturing the fin cooling platform 4 can be a variety of materials known to those skilled in the art, such as plastics. However, considering that the fin cooling platform 4 needs to dissipate heat from the battery module 5, the fin cooling platform 4 is preferably made of a thermally conductive material.

[0031] Specifically, the fin cooling platform 4 includes a flat heat sink, and a plurality of fins 41 are provided on one side surface of the heat sink. Since the fin cooling platform 4 is tightly fitted to the battery module 5, heat conduction is more efficient. Heat can be conducted more quickly from the battery module 5 to the fin cooling platform 4, and dissipated to the surrounding environment through the large surface area of ​​the fin 41, thereby effectively improving the heat dissipation efficiency.

[0032] Furthermore, combined with Figure 2 and Figure 3 As shown, the plurality of fins 41 located on the fin cooling platform 4 are arranged at intervals in the circumferential direction around the air induction portion 11, and a plurality of groups are arranged at intervals in the direction away from the air induction portion 11. It can be understood that the arrangement of the fins 41 is an arc arrangement with the center point of the trumpet-shaped peak as the center of the circle, which is more suitable for the cyclone formed by the exhaust of the axial flow fan 2, so that the heat is more evenly distributed on the entire fin cooling platform, avoiding the generation of hot spots, thereby ensuring the uniformity and stability of heat dissipation.

[0033] In the present invention, two fin cooling platforms 4 are provided, and the two fin cooling platforms 4 are symmetrically arranged on both sides of the air induction portion 11. The symmetrically arranged fin cooling platforms 4 help to balance the working state of the entire heat dissipation system, and by evenly distributing the heat dissipation elements, the heat dissipation system can be made more stable and reliable.

[0034] Preferably, in the present invention, the diameter of the top of the trumpet peak of the air induction portion 11 is less than or equal to the shaft diameter of the axial flow fan 2. It can be understood that such a design can effectively ensure smooth air flow, thereby improving heat dissipation efficiency.

[0035] In the present invention, the shape of the ventilation grille 3 can be any of the shapes known to those skilled in the art, such as an elliptical shape. The arrangement can also be any of the shapes known to those skilled in the art, such as a circular arrangement. In order to improve the air intake efficiency, in a preferred example of the present invention, the grille is rectangular and arranged in a linear symmetrical manner.

[0036] Preferably, the height of the ventilation grille 3 does not exceed the height of the fin cooling platform 4, and the position height of the ventilation grille 3 matches the fin cooling platform 4, so that wind can enter the air inlet 11 through the fins 41 and rise along the designed airflow path, which helps to optimize the flow path of the airflow and improve the flow efficiency of air in the heat dissipation system.

[0037] In the present invention, the bottom shell of the battery box 1 can also be directly set to a horn peak shape protruding toward the inside of the battery box 1. This design can not only achieve the heat dissipation effect, but also better utilize the internal space of the battery box, making the battery box more compact as a whole.

[0038] In the utility model, the fixing connection method between the fin cooling platform 4 and the bottom of the battery box 1 can be any appropriate method known to those skilled in the art, such as fixing the fin cooling platform 4 by means of riveting studs 12. The installation and removal of the riveting studs 12 are relatively simple and quick, and are suitable for various types of materials and thicknesses, and have strong adaptability and versatility.

[0039] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A heat dissipation device for a backup battery module, characterized in that: It comprises a battery box (1) in which a battery module (5) is placed, an axial flow fan (2) is arranged at the top center of the battery box (1), and the axial flow fan (2) is used to extract hot air from the battery box (1); A ventilation grille (3) is provided at the bottom of the side of the battery box (1); An air induction portion (11) is provided in the battery plug box (1), and the air induction portion (11) is arranged in a trumpet shape and the trumpet mouth is arranged in a direction away from the axial flow fan (2).

2. The heat dissipation device for the backup battery module according to claim 1, characterized in that: A fin cooling platform (4) fixedly connected to the bottom of the battery plug box (1) is provided inside the battery plug box (1); the fin cooling platform (4) is fixedly connected to the bottom of the battery module (5).

3. The heat dissipation device for the backup battery module according to claim 2, characterized in that: The fin cooling platform (4) comprises a flat heat sink, a plurality of fins (41) are provided on one side of the heat sink, and the fin cooling platform (4) is tightly fitted to the battery module (5).

4. The heat dissipation device for the backup battery module according to claim 3, characterized in that: The plurality of fins (41) located on the fin cooling platform (4) are spaced apart in a circumferential direction around the air induction portion (11), and a plurality of groups are spaced apart in a direction away from the air induction portion (11).

5. The backup battery module heat dissipation device according to claim 3, characterized in that: Two fin cooling platforms (4) are provided, and the two fin cooling platforms (4) are symmetrically arranged on both sides of the air induction portion (11).

6. The heat dissipation device for the backup battery module according to claim 1, characterized in that: The diameter of the top of the trumpet peak of the air induction portion (11) is less than or equal to the shaft diameter of the axial flow fan (2).

7. The heat dissipation device for the backup battery module according to claim 1, characterized in that: A plurality of the ventilation grilles (3) are provided, and the plurality of ventilation grilles (3) are arranged in a rectangular shape and in a linearly symmetrical arrangement.

8. The backup battery module heat dissipation device according to claim 2, characterized in that: The height at which the ventilation grille (3) is arranged does not exceed the height at which the fin cooling platform (4) is arranged.

9. The backup battery module heat dissipation device according to claim 1, characterized in that: The bottom shell of the battery insertion box (1) is arranged in a trumpet peak shape protruding toward the inside of the battery insertion box (1).

10. The heat dissipation device for the backup battery module according to claim 2, characterized in that: The fin cooling platform (4) is detachably connected to the bottom of the battery plug box (1) via riveting studs (12).

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