A car battery pack

Abstract

This utility model relates to the field of automotive battery packs and discloses an automotive battery pack, including a second housing and a first housing, and battery bodies disposed inside the first and second housings. A heat dissipation assembly is disposed inside the first and second housings, the heat dissipation assembly including a third heat dissipation plate. The third heat dissipation plate is fixedly installed on the left side of multiple battery bodies, and a heat dissipation through hole is formed in the middle of the third heat dissipation plate. A baffle is fixedly connected to the left side of the front surface of the third heat dissipation plate, and multiple sets of heat dissipation guide strips are fixedly connected to the inner wall of the third heat dissipation plate. A cooling fan is fixedly installed on the front surface of the first housing. In this utility model, through the synergistic action of the third heat dissipation plate, the first heat dissipation through hole, the heat dissipation guide strips, and the cooling fan, an orderly air convection path is formed, effectively accelerating heat dissipation, improving heat dissipation efficiency, and ensuring heat dissipation stability. Combined with the heat dissipation plate, the heat dissipation effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive battery packs, and more particularly to an automotive battery pack. Background Technology

[0002] With the development of the new energy vehicle industry, the performance and safety of the car battery pack, as the core component of electric vehicles, are very important. However, in the actual application of battery packs, the battery generates a lot of heat during charging and discharging. If the heat cannot be dissipated in a timely and effective manner, it will seriously affect the performance and life of the battery, and may even cause safety accidents.

[0003] Traditional automotive battery pack cooling methods mostly rely on natural convection, simple air cooling, or liquid cooling. However, while traditional simple air cooling systems are simple in structure and low in cost, their heat dissipation efficiency is limited. Liquid cooling systems, on the other hand, remove heat through coolant circulation, significantly improving heat dissipation. However, they suffer from complex piping, high maintenance costs, and the risk of coolant leakage, which in turn affects battery performance and safety. Therefore, a new automotive battery pack is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automotive battery pack that aims to improve the problems in the prior art where "traditional air-cooling heat dissipation efficiency is limited and liquid-cooling heat dissipation systems have complex pipes, high maintenance costs, and the risk of coolant leakage, which in turn affect battery performance and safety."

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automotive battery pack, comprising a second housing and a first housing, and a battery body disposed inside the first and second housings. A heat dissipation assembly is disposed inside the first and second housings. The heat dissipation assembly includes a third heat dissipation plate, which is fixedly installed on the left side of multiple battery bodies. A heat dissipation through-hole is formed in the middle of the third heat dissipation plate. A baffle is fixedly connected to the left side of the front surface of the third heat dissipation plate. Multiple heat dissipation guide strips are fixedly connected to the inner wall of the third heat dissipation plate. A cooling fan is fixedly installed on the front surface of the first housing, and the cooling fan communicates with the interior of the first housing. Heat dissipation through-holes are formed at the midpoint between the rear surface of the first housing and the front and rear surfaces of the second housing.

[0006] As a further description of the above technical solution:

[0007] The heat dissipation assembly also includes a heat dissipation plate, and multiple sets of heat dissipation through holes are provided. One set of heat dissipation through holes is opened on the right side of the heat dissipation plate. The heat dissipation plate is fixedly connected to the right side of the housing through multiple sets of connecting plates. A second heat dissipation plate is fixedly connected to the left side of the multiple sets of connecting plates. The second heat dissipation plate is located on the right side of the battery body inside the housing.

[0008] As a further description of the above technical solution:

[0009] All of the aforementioned heat dissipation strips are arranged at an angle, and all of them are inclined downwards.

[0010] As a further description of the above technical solution:

[0011] The baffle is set at an angle.

[0012] As a further description of the above technical solution:

[0013] The first housing and the second housing are fixedly installed together by an installation assembly, which includes an installation strip and an installation strip. Multiple sets of installation through holes are opened on the opposite right sides of the first housing and the second housing. Multiple sets of insert rods are fixedly connected to the bottom end of the first installation strip. Insertion holes are opened on the right side of each set of insert rods. The multiple sets of insert rods respectively pass through the multiple sets of installation through holes. Insert blocks are slidably inserted into the inner walls of the multiple sets of insertion holes. The second installation strip is fixedly connected to the right side of each set of insert blocks.

[0014] As a further description of the above technical solution:

[0015] The second mounting strip is fixedly connected to the upper right side of the second housing by two sets of threaded rods, and mounting components are provided around the perimeter of the first and second housings.

[0016] As a further description of the above technical solution:

[0017] The second mounting strip is U-shaped.

[0018] As a further description of the above technical solution:

[0019] The insertion hole and the mounting strip are compatible and both are designed with a conical flat-top shape.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, through the synergistic effect of heat dissipation plate three, heat dissipation through hole one, heat dissipation guide strip, and heat dissipation fan, an orderly air convection path is formed, which effectively accelerates heat dissipation, improves heat dissipation efficiency, and ensures heat dissipation stability. Combined with the heat dissipation plate, the heat dissipation effect is further improved, thereby improving the performance and life of the battery.

[0022] 2. In this utility model, the mounting strip 2 is fixed by the threaded rod through the cooperation of the insertion rod, insertion hole and insertion block, which can be installed quickly. In addition, mounting components are provided around the perimeter of the housing 1 and housing 2 to fix the battery pack from multiple directions, ensuring the stability and reliability of the overall structure of the battery pack. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a three-dimensional cross-sectional view of the shell of this utility model;

[0025] Figure 3 This is a three-dimensional structural breakdown diagram of mounting strip one and mounting strip two in this utility model;

[0026] Figure 4 This is a schematic diagram showing the three-dimensional structure of shell 1 and shell 2 in this utility model, as well as a three-dimensional cross-sectional view of shell 1.

[0027] Figure 5 This is a three-dimensional cross-sectional view of the heat sink plate and heat dissipation guide strip in this utility model.

[0028] Legend:

[0029] 1. Housing 1; 2. Housing 2; 3. Heat dissipation assembly; 4. Mounting assembly; 5. Battery body; 31. Heat dissipation plate 1; 32. Heat dissipation through hole 1; 33. Baffle; 34. Cooling fan; 35. Heat dissipation plate 2; 36. Heat dissipation guide strip; 37. Heat dissipation plate 3; 41. Mounting strip 1; 42. Insert rod; 43. Threaded rod; 44. Insert block; 45. Mounting strip 2; 46. Insert hole; 47. Mounting through hole. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 2 and Figure 5This utility model provides an embodiment of an automotive battery pack, comprising a second housing 2 and a first housing 1, and a battery body 5 disposed inside the first housing 1 and the second housing 2. The second housing 2 and the first housing 1 protect the battery body 5. A heat dissipation assembly 3 is disposed inside the first housing 1 and the second housing 2. The heat dissipation assembly 3 includes a third heat dissipation plate 37, which is made of a copper-aluminum composite material with high thermal conductivity. The tiny gaps are filled with thermally conductive silicone grease to ensure that heat can be quickly conducted to the third heat dissipation plate 37. The third heat dissipation plate 37 is fixedly installed on the left side of multiple battery bodies 5. A heat dissipation through hole 32 is opened in the middle of the third heat dissipation plate 37. A baffle 33 is fixedly connected to the left side of the front surface of the third heat dissipation plate 37 to guide some air to flow through the heat dissipation through hole 32 opened in the middle of the third heat dissipation plate 37. A baffle 33 is fixedly connected to the inner wall of the third heat dissipation plate 37 to guide air towards the casing. Multiple sets of heat dissipation guide strips 36 flow below the middle of the body 1 and the housing 2. The heat dissipation guide strips 36 guide some air downward to the rear. With the help of the heat dissipation plate 37 symmetrically arranged at the rear and the heat dissipation guide strips 36, some air is guided upward and discharged from the heat dissipation hole 2. A cooling fan 34 is fixedly installed on the front surface of the housing 1. The cooling fan 34 is a high-speed, low-noise axial flow fan, which can meet the heat dissipation requirements of the battery pack under high load conditions. The cooling fan 34 is connected to the interior of the housing 1 and can blow the heat inside the housing 1 and the housing 2 outward from the heat dissipation hole 2. Heat dissipation holes 2 are opened in the middle of the rear surface of the housing 1 and the front and rear surfaces of the housing 2. Heat dissipation plates 37 and 25 are arranged on the left and right sides of the multiple battery bodies 5, and are symmetrically arranged between the symmetrical centers of the front and rear battery bodies 5.

[0032] Reference Figure 1 , Figure 2 and Figure 4 The heat dissipation component 3 also includes a heat dissipation plate 31, which can transfer internal heat to the outside and improve heat dissipation efficiency by cooperating with the external air for natural heat dissipation. Multiple sets of heat dissipation through holes 32 are provided, one of which is located on the right side of the heat dissipation plate 31. The heat dissipation plate 31 is fixedly connected to the right side of the housing 1 through multiple sets of connecting plates. The heat dissipation plate 31 is made of aluminum alloy, which has good thermal conductivity and mechanical strength. The multiple sets of heat dissipation through holes 32 form a through heat dissipation channel, which facilitates rapid air circulation. A second heat dissipation plate 35 is fixedly connected to the left side of the multiple sets of connecting plates. Heat is conducted to the heat dissipation plate 31 through the heat dissipation plate 35 and the connecting plates. The heat dissipation efficiency is further improved through the heat dissipation plate 31 and the heat dissipation through holes 32. The second heat dissipation plate 35 is located on the right side of the battery body 5 inside the housing 1. Multiple sets of heat dissipation guide strips 36 are all inclined and downward, which can guide the air circulation downward. The baffle 33 is inclined and can guide the air into the heat dissipation through holes 32.

[0033] Reference Figure 1 , Figure 3and Figure 4 The housing 1 and housing 2 are fixedly installed together by a mounting assembly 4, which includes a mounting strip 41 and a mounting strip 45. Multiple sets of mounting through holes 47 for inserting rods 42 are provided on the opposite right sides of both housing 1 and housing 2. Multiple sets of rods 42 are fixedly connected to the bottom end of the mounting strip 41. The rods 42 pass through the mounting through holes 47 and cooperate with the insertion holes 46 and insertion blocks 44 for positioning. Insertion holes 46 are provided on the right side of each set of rods 42, and each set of rods 42 passes through the mounting through holes 47. Insertion blocks 44 are slidably inserted into the inner walls of each set of insertion holes 46. Multiple sets of insert blocks 44 are fixedly connected to the right side of the mounting strip 45. The mounting strip 45 supports the insert blocks 44. The mounting strip 45 is fixedly connected to the upper right side of the housing 2 by two sets of threaded rods 43. The mounting strip 45 can be fixed by the threaded rods 43 on the front and rear sides. The housing 1 and housing 2 are provided with mounting components 4 around the perimeter. The mounting strip 45 is U-shaped. The insertion hole 46 is compatible with the mounting strip 45 and is set with a conical flat top shape. The conical flat top shape allows the strip to be inserted into the insertion hole 46 and rub against each other, thereby increasing the stability of the installation.

[0034] Working principle: In use, first connect the power supply and switch to the electrical equipment in this device. The heat generated by the battery body 5 is transferred to the heat sink 35 and heat sink 37 that are in close contact with it. The heat sink 35 conducts heat to the heat sink 31 through the connecting plate. The heat sink 31, together with multiple sets of heat dissipation holes 32, transfers heat to the outside of the battery pack. The external air convection assists in heat dissipation. The cooling fan 34 is started to blow air into the battery pack. The baffle 33 is set at an angle to guide some air from the middle of the heat sink 37 for heat dissipation. Air flows in through the through-hole 32, and the downward-sloping heat dissipation guide strip 36 on the inner wall of the heat sink 37 further changes the airflow direction, causing the air to flow towards the lower middle part of the housing 1 and housing 2. Some of the air is guided to the rear. At this time, the heat sink 37 and heat dissipation guide strip 36, which are symmetrically arranged at the rear, guide this part of the air upward, and finally discharge it from the heat dissipation through-hole 2 at the middle of the rear surface of housing 1 and the front and rear surfaces of housing 2, forming an orderly air convection path, accelerating heat dissipation. In addition, the heat dissipation guide strip 36 increases the heat dissipation area, and the turbulence effect enhances the heat exchange between the air and the heat sink.

[0035] The housing 1 and housing 2 form a space to protect the battery body 5. During installation, after the insertion rod 42 passes through the mounting through hole 47, the insertion block 44 is inserted into the insertion hole 46. The insertion block 44 and the insertion hole 46 rub and squeeze against each other. Since the insertion hole 46 and the mounting strip 45 are compatible and both are set to a conical flat-top shape, the stability of the installation can be increased, preventing the insertion rod 42 from loosening or shifting in the mounting through hole 47. Then, by rotating the threaded rods 43 on both sides, the U-shaped mounting strip 45 is fixed on the upper right side of the housing 2, which further ensures the stability of the mounting strip 45, thereby firmly supporting the insertion block 44, so that the entire mounting assembly 4 can stably fix the housing 1 and housing 2.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A car battery pack, comprising a second housing (2) and a first housing (1) and a battery body (5) disposed inside the first housing (1) and the second housing (2), characterized in that: Heat dissipation components (3) are provided inside the housing one (1) and housing two (2); The heat dissipation component (3) includes a heat dissipation plate three (37), which is fixedly installed on the left side of multiple battery bodies (5). A heat dissipation through hole one (32) is opened in the middle of the heat dissipation plate three (37). A baffle (33) is fixedly connected to the left side of the front surface of the heat dissipation plate three (37). Multiple heat dissipation guide strips (36) are fixedly connected to the inner wall of the heat dissipation plate three (37). A cooling fan (34) is fixedly installed on the front surface of the housing one (1). The cooling fan (34) communicates with the interior of the housing one (1). A heat dissipation through hole two is opened in the middle of the rear surface of the housing one (1) and the front and rear surfaces of the housing two (2). The heat dissipation assembly (3) also includes a heat dissipation plate (31), and multiple sets of heat dissipation through holes (32) are provided. One set of heat dissipation through holes (32) is opened on the right side of the heat dissipation plate (31). The heat dissipation plate (31) is fixedly connected to the right side of the housing (1) through multiple sets of connecting plates. A heat dissipation plate (35) is fixedly connected to the left side of the multiple sets of connecting plates. The heat dissipation plate (35) is located on the right side of the battery body (5) inside the housing (1). The first housing (1) and the second housing (2) are fixedly installed together by an installation assembly (4). The installation assembly (4) includes an installation strip (41) and an installation strip (45). Multiple sets of installation through holes (47) are opened on the opposite right sides of the first housing (1) and the second housing (2). Multiple sets of insert rods (42) are fixedly connected to the bottom end of the first installation strip (41). Insert holes (46) are opened on the right side of the multiple sets of insert rods (42). The multiple sets of insert rods (42) respectively pass through the multiple sets of installation through holes (47). Insert blocks (44) are slidably inserted into the inner walls of the multiple sets of insert holes (46). The second installation strip (45) is fixedly connected to the right side of the multiple sets of insert blocks (44). The second installation strip (45) is fixedly connected to the upper right side of the second housing (2) by two sets of threaded rods (43). The installation assembly (4) is provided around the first housing (1) and the second housing (2).

2. The automotive battery pack of claim 1, wherein: All of the heat dissipation strips (36) are arranged at an angle and all tilt downwards.

3. The automotive battery pack of claim 1, wherein: The baffle (33) is set at an angle.

4. The automotive battery pack of claim 1, wherein: The mounting strip 2 (45) is configured in a U-shape.

5. The automotive battery pack of claim 1, wherein: The insertion hole (46) and the mounting strip (45) are compatible and both are set in a conical flat-top shape.

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