Battery protection box with heat dissipation function for new energy automobile

Abstract

The utility model discloses a battery protection box with a heat dissipation function for a new energy automobile, which comprises a protection box and a heat dissipation device, the heat dissipation box is connected with the protection box, an air inlet grille is arranged at the end, away from the protection box, of the heat dissipation box, the heat dissipation box is provided with an air outlet grille, and the air outlet grille is located between the air inlet grille and the protection box; and the radiator is arranged in the heat dissipation box, the radiator comprises a heat dissipation pipe and heat dissipation fins, the heat dissipation fins are connected with the heat dissipation pipe, and the heat dissipation pipe is communicated with the liquid cooling device. According to the scheme, through the combination of the liquid cooling device, the radiator and the heat dissipation box, the cooling liquid can be effectively cooled, so that the working efficiency of the cooling liquid is improved, heat generated by the battery is better dissipated, and the battery is kept in a proper working temperature range.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle batteries, in particular to a battery protection box of a new energy vehicle with a heat dissipation function. Background Art

[0002] With the global emphasis on environmental protection and sustainable development, the new energy vehicle industry has developed rapidly. As an alternative to traditional fuel vehicles, new energy vehicles are gradually accepted by the market and consumers. Compared with traditional fuel vehicles, new energy vehicles have significant advantages in energy conservation, emission reduction and environmental pollution reduction. In particular, electric vehicles can achieve zero-emission driving by using batteries as a power source, further promoting the green revolution in the transportation field. As the core component of new energy vehicles, the performance of batteries directly affects the endurance, power output and safety of the entire vehicle. During the charging and discharging process of the battery, especially in the case of high power output, the battery will generate a lot of heat. If the heat cannot be dissipated in time and effectively, the battery temperature will be too high, which will not only affect the service life of the battery, but also may cause serious safety accidents such as fire and explosion. Therefore, battery thermal management has become an important technical issue in the research and development and production of new energy vehicles. At present, the battery thermal management methods commonly used on the market are mainly divided into two categories: passive heat dissipation and active heat dissipation. Passive heat dissipation reduces the temperature of the battery through the thermal conductivity of the battery material itself and the natural convection of the external environment. Active heat dissipation uses air cooling or liquid cooling systems to remove the heat generated by the battery through mechanical or fluid methods, thereby improving heat dissipation efficiency and ensuring that the battery operates within the optimal operating temperature range, thereby improving the battery's operating efficiency and safety. The battery protection box plays a very important role in this process. Therefore, it is very necessary to provide a battery protection box for new energy vehicles with heat dissipation function.

[0003] However, one of the shortcomings of the related prior art is that the heat dissipation efficiency of the coolant in the liquid cooling device is not high, resulting in poor cooling effect when the coolant is circulated. Utility Model Content

[0004] The utility model aims to solve at least one of the above technical problems.

[0005] In order to solve the above problems, the first purpose of the utility model is to provide a battery protection box for a new energy vehicle with a heat dissipation function, which includes: a protection box, a liquid cooling device is provided in the protection box; a heat dissipation box, the heat dissipation box is connected to the protection box, and an air inlet grille is provided at one end of the heat dissipation box away from the protection box, and the heat dissipation box is provided with an air outlet grille, and the air outlet grille is located between the air inlet grille and the protection box; a radiator, the radiator is placed in the heat dissipation box, the radiator includes a heat dissipation pipe and heat dissipation fins, the heat dissipation fins are connected to the heat dissipation pipe, and the heat dissipation pipe is connected to the liquid cooling device.

[0006] The combination of the liquid cooling device and the radiator can effectively dissipate the heat generated by the battery and keep the battery within a suitable operating temperature range. By placing the radiator in a special heat dissipation box, the protection box provides protection for the battery, and the heat dissipation box improves the heat dissipation effect of the radiator. The liquid cooling device is distributed on the battery, and the liquid cooling device contains coolant. After cooling the battery, the coolant flows from the liquid cooling device to the heat pipe in the heat dissipation box. The heat dissipation fins are connected to the heat pipe, which increases the heat dissipation area of ​​the heat pipe. Therefore, the coolant can be quickly cooled and flows into the liquid cooling device again for circulation and heat dissipation. This helps to improve the working efficiency and life of the battery, while avoiding battery performance degradation or safety hazards caused by overheating. Battery overheating may cause safety accidents such as explosion and fire. The battery protection box can significantly reduce the risk of battery overheating through an efficient heat dissipation system, thereby improving the safety of the vehicle. By optimizing the heat dissipation design, the dependence on external cooling equipment can be reduced and energy consumption can be reduced. At the same time, keeping the battery in the best working state also helps to improve energy utilization efficiency and reduce energy waste. The design of the air intake grille helps to increase the air circulation inside the heat dissipation box. The fresh air entering through the grille can take away the heat of the radiator, thereby improving the heat dissipation efficiency. The air inlet grille is usually equipped with a dustproof net or other filtering device, which can effectively prevent dust, impurities, etc. from entering the inside of the heat dissipation box. This helps to keep the heat dissipation system clean and prevent the heat dissipation performance from decreasing due to dust accumulation. The position of the air inlet grille is set at the end of the heat dissipation box away from the protective box, which helps to form a reasonable heat dissipation channel and make the air flow smoother. This structural design is conducive to improving the efficiency and stability of the entire heat dissipation system. By improving the heat dissipation conditions, the air inlet grille helps to improve the overall effect of the radiator. A good heat dissipation system can ensure that the battery works within a suitable temperature range, so as to exert the best performance. The air outlet grille can effectively guide and promote air flow, so that more fresh air enters the heat dissipation box and exchanges with the hot air, thereby taking away more heat. This design helps to improve the heat dissipation efficiency and ensure that the battery works within a suitable temperature range. Through the design of the air outlet grille, the heat generated by the battery can be dissipated in time to avoid heat accumulation causing battery overheating or safety accidents. At the same time, the air outlet grille and the air inlet grille cooperate to form a perfect air duct, so that the heat inside the heat dissipation box can be discharged in time, improving the heat dissipation efficiency.

[0007] In any of the above technical solutions, the heat sink is provided with an air guiding slope, and the air guiding slope is located at one end of the heat sink close to the protection box.

[0008] The wind guide slope can guide the direction of air flow, allowing air to enter the air outlet grille more smoothly and improve heat dissipation efficiency. This design helps to form a good airflow channel, allowing hot air to be quickly discharged and avoiding heat accumulation. By setting the wind guide slope, the speed and coverage of air flow can be increased, thereby enhancing the heat dissipation performance of the entire heat dissipation system. This helps to keep the battery within a suitable operating temperature range and extend the service life of the battery. The design of the wind guide slope helps to quickly export heat from the heat dissipation box and reduce the accumulation of heat in the box. This not only prevents the battery from overheating, but also improves the safety and stability of the battery. The optimized airflow design and enhanced heat dissipation performance can improve the efficiency of the entire heat dissipation system, thereby improving the overall performance of new energy vehicles. The wind guide slope is located at one end of the heat dissipation box close to the protective box. This structure allows the wind entering the heat dissipation box to blow through the radiator first and then be guided by the wind guide slope to the air outlet grille to blow out of the heat dissipation box, which reasonably utilizes the heat dissipation effect of the air and improves the efficiency of the heat dissipation system.

[0009] In any of the above technical solutions, the radiator further includes a liquid inlet pipe and a liquid outlet pipe, and both the liquid inlet pipe and the liquid outlet pipe are connected to the liquid cooling device.

[0010] Through the setting of the inlet and outlet pipes, the coolant can flow into the radiator to dissipate heat after cooling the battery. When the coolant is fully cooled, it can return to the liquid cooling device to cool the battery again, thus achieving a virtuous cycle. This design helps to keep the battery within a suitable operating temperature range and extend the battery's service life and safety. Liquid cooling technology has the advantages of high heat transfer efficiency and good heat dissipation effect. It can effectively reduce the operating temperature of the battery and improve the battery's service life and safety. The setting of the inlet and outlet pipes further enhances this advantage, making the heat dissipation system more stable and reliable.

[0011] In any of the above technical solutions, the radiator is provided with a connecting portion, and the connecting portion is connected to the heat dissipation box.

[0012] The setting of the connection part makes the connection between the radiator and the heat sink more secure, reducing the risk of loosening or falling off due to vibration or impact. This helps to improve the stability and reliability of the entire heat dissipation system and ensure the normal operation of the battery under various working conditions. The design of the connection part usually takes into account the need for heat dissipation and may be made of materials with good thermal conductivity to further improve the efficiency of heat transfer. At the same time, the shape and structure of the connection part may also be optimized to reduce the resistance to air flow and improve heat dissipation performance.

[0013] In any of the above technical solutions, the heat dissipation fins are sleeved on the outside of the heat dissipation tube and abut against the outside of the heat dissipation tube.

[0014] By sleeved the heat dissipation fins on the outside of the heat pipe, the heat dissipation surface area can be significantly increased. This design allows heat to be transferred from the heat pipe to the fins more quickly, and further dissipated into the surrounding environment, thereby improving the overall heat dissipation efficiency. The fins are in close contact and abut against the heat pipe, which can reduce the gap between the two and reduce thermal resistance. This tight structural design helps to improve the overall stability and reliability of the radiator and prevent the fins from loosening or falling off due to vibration or impact. The fins are sleeved on the outside of the heat pipe to form a more direct heat conduction path. When heat is generated from inside the heat pipe, it can be quickly transferred to the external environment through the fins, improving the heat dissipation efficiency.

[0015] In any of the above technical solutions, one end of the heat sink provided with the air inlet grille is inclined downward.

[0016] This design can prevent rainwater from flowing into the air inlet grille, thereby improving the overall safety of the battery protection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of a battery protection box for a new energy vehicle with a heat dissipation function provided by an embodiment of the utility model.

[0019] Figure 2 It is a cross-sectional view of a battery protection box for a new energy vehicle with a heat dissipation function provided by an embodiment of the utility model.

[0020] Figure 3 yes Figure 2 Enlarged view of part A.

[0021] Figure 4 It is another schematic diagram of a battery protection box for a new energy vehicle with a heat dissipation function provided by an embodiment of the utility model.

[0022] In the figure: 100 - protection box, 200 - heat dissipation box, 210 - air inlet grille, 220 - air outlet grille, 230 - air guide slope, 300 - radiator, 310 - heat dissipation pipe, 320 - heat dissipation fin, 330 - liquid inlet pipe, 340 - liquid outlet pipe, 350 - connection part. Specific embodiments

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. In the following description, many specific details are set forth to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and therefore, the scope of protection of the utility model is not limited by the specific embodiments disclosed below.

[0024] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the utility model provides a battery protection box of a new energy vehicle with a heat dissipation function, which includes: a protection box 100, in which a liquid cooling device is arranged; a heat dissipation box 200, in which the heat dissipation box 200 is connected to the protection box 100, and an air inlet grille 210 is arranged at one end of the heat dissipation box 200 away from the protection box 100, and the heat dissipation box 200 is provided with an air outlet grille 220, and the air outlet grille 220 is located between the air inlet grille 210 and the protection box 100; a radiator 300, in which the radiator 300 is placed, and the radiator 300 includes a heat dissipation pipe 310, a heat dissipation fin 320, and a heat dissipation fin 330. The radiator 300 includes a heat sink 320, the heat sink 320 is connected to the heat sink 310, and the heat sink 310 is connected to the liquid cooling device; the heat sink box 200 is provided with an air guide slope 230, and the air guide slope 230 is located at one end of the heat sink 200 close to the protection box 100; the radiator 300 also includes a liquid inlet pipe 330 and a liquid outlet pipe 340, and the liquid inlet pipe 330 and the liquid outlet pipe 340 are both connected to the liquid cooling device; the radiator 300 is provided with a connecting portion 350, and the connecting portion 350 is connected to the heat sink 200; the heat sink 320 is sleeved on the outside of the heat sink 310 and abuts against the outside of the heat sink 310.

[0025] In this embodiment, the battery protection box is installed on the top of the car, and a protective shell is installed above the battery protection box to provide safety protection for the battery protection box as a whole. The battery protection box is divided into two parts: a protection box 100 and a heat sink 200. The battery is placed in the protection box 100. The side of the heat sink 200 provided with an air inlet grille 210 is located at the front of the car. When the vehicle is driving, air can be smoothly blown into the heat sink 200 from the air inlet grille 210. The heat sink 200 has an inner cavity inside, and a radiator 300 is placed in the inner cavity. Both ends of the radiator 300 are provided with connecting parts 350 connected to the heat sink 200. The heat sink 200 is provided with two wind guide slopes 230, which respectively guide the blown air to the air outlet grilles 220 on both sides, and pass through the air outlet grilles 220 to the external environment. When the vehicle is driving, the liquid cooling device in the protection box 100 cools the battery. After the cooling of the battery is completed, the coolant in the liquid cooling device enters the heat sink through the liquid inlet pipe 330. Air is blown into the air inlet grille 210 from the front, and then blows through the radiator 300, taking away most of the heat, thereby achieving the effect of cooling the coolant in the heat pipe 310. The air after blowing through the radiator 300 is guided to both sides by the two wind guide slopes 230, and leads to the external environment through the air outlet grille 220, thereby completing the internal air circulation and cooling the coolant. The cooled coolant flows from the liquid outlet pipe 340 into the liquid cooling device in the protection box 100 for recycling. The heat dissipation fins 320 are made of a thin, easy-to-conduct heat material, and there is a certain gap between each heat dissipation fin to ensure that air can circulate. The heat dissipation fins 320 are sleeved on the outside of the heat pipe 310 and abut against the outside of the heat pipe 310, increasing the contact area between the radiator 300 and the air, and improving the overall heat dissipation efficiency.

[0026] In this embodiment, the heat dissipation box 200 can be set to a shape in which the length of the upper end is greater than the length of the lower end, that is, it is a trapezoidal structure with a longer upper end and a shorter lower end when viewed from the side, so as to prevent rainwater from entering the heat dissipation box 200 when it rains, thereby improving the overall safety of the battery protection box.

[0027] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the description of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it cannot be understood as a limitation on the present invention.

[0029] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A battery protection box for a new energy vehicle with a heat dissipation function, characterized in that: include: A protection box (100), wherein a liquid cooling device is provided in the protection box (100); A heat dissipation box (200), the heat dissipation box (200) being connected to the protection box (100), an end of the heat dissipation box (200) away from the protection box (100) being provided with an air inlet grille (210), the heat dissipation box (200) being provided with an air outlet grille (220), the air outlet grille (220) being located between the air inlet grille (210) and the protection box (100); A radiator (300), the radiator (300) being located in the heat dissipation box (200), the radiator (300) comprising a heat dissipation pipe (310) and heat dissipation fins (320), the heat dissipation fins (320) being connected to the heat dissipation pipe (310), and the heat dissipation pipe (310) being connected to the liquid cooling device.

2. The battery protection box for new energy vehicles with heat dissipation function according to claim 1 is characterized in that: The heat dissipation box (200) is provided with an air guiding inclined surface (230), and the air guiding inclined surface (230) is located at one end of the heat dissipation box (200) close to the protection box (100).

3. The battery protection box for new energy vehicles with heat dissipation function according to claim 1 is characterized in that: The radiator (300) further comprises a liquid inlet pipe (330) and a liquid outlet pipe (340), and both the liquid inlet pipe (330) and the liquid outlet pipe (340) are connected to the liquid cooling device.

4. The battery protection box for new energy vehicles with heat dissipation function according to claim 1 is characterized in that: The radiator (300) is provided with a connecting portion (350), and the connecting portion (350) is connected to the heat dissipation box (200).

5. The battery protection box for new energy vehicles with heat dissipation function according to claim 1, characterized in that: The heat dissipation fin (320) is sleeved on the outside of the heat dissipation tube (310) and abuts against the outside of the heat dissipation tube (310).

6. The battery protection box with heat dissipation function for new energy vehicles according to claim 1, characterized in that: One end of the heat dissipation box (200) provided with the air inlet grille (210) is inclined obliquely downward.

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