Battery heat dissipation device of electric vehicle

Abstract

The utility model discloses an electric automobile battery heat dissipation device which comprises a battery box, a mounting cover is fixedly connected to the top of the battery box, heat dissipation openings are formed in the bottom ends of the four side walls of the battery box, mounting grooves are fixedly connected to the interior of the battery box at equal intervals, and battery bodies are mounted in the mounting grooves in a matched mode. According to the heat dissipation device for the battery of the electric vehicle, heat dissipation fins are fixedly installed at the bottom of the battery box, supporting legs are integrally arranged at the four corners of the bottom of the battery box, one part of heat in the battery box is dissipated through heat dissipation openings in the bottom ends of the four side walls of the battery box, and the other part of heat is discharged through communicating grooves in the heat dissipation fins; one part of the cold air is transmitted to the outside through the heat dissipation fins, and the fan is controlled to work, so that the absorbed cold air is blown to the area between the two adjacent battery bodies in the battery box through the plurality of air outlets, heat generated by each battery body can be quickly dissipated through the heat dissipation openings, and heat dissipation is more uniform and thorough.

Description

Technical Field

[0001] The utility model relates to the technical field of battery heat dissipation, in particular to a heat dissipation device for an electric vehicle battery. Background Art

[0002] Currently, many cars are electric cars, or electric and fuel-powered electric cars. The batteries of electric cars are generally installed on the chassis between the four wheels or in the trunk. Since the batteries work for a long time and need to be charged repeatedly, they are very easy to generate heat; thus, the heat dissipation of the batteries becomes particularly important.

[0003] According to the patent number CN 220065801 U, an electric vehicle battery heat dissipation device is disclosed. The device achieves the purpose of heat dissipation of the vehicle battery by arranging a heat dissipation copper tube, a heat sink, a heat sink, a plurality of heat dissipation fans and a temperature sensor inside the battery fixing box. However, the existing electric vehicle battery heat dissipation device has a plurality of heat dissipation fans fixedly installed on the vehicle battery inside the battery fixing box. Although a good heat dissipation effect is achieved, the overall component structure is relatively complex and the cost is high. In addition, the existing device installs a heat dissipation copper tube and a heat sink at one end inside the battery fixing box. The close installation of multiple vehicle batteries easily causes heat to accumulate between the vehicle batteries and is difficult to dissipate, resulting in uneven heat dissipation, which easily causes some vehicle batteries to be damaged due to excessive heat. Therefore, we propose an electric vehicle battery heat dissipation device. Utility Model Content

[0004] The purpose of the utility model is to provide a heat dissipation device for an electric vehicle battery to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation device for an electric vehicle battery, comprising a battery box, a mounting cover is fixedly connected to the top of the battery box, heat dissipation ports are opened at the bottom ends of the four side walls of the battery box, mounting grooves are fixedly connected at equal intervals inside the battery box, and a battery body is installed in the mounting grooves, and heat dissipation fins are fixedly installed at the bottom of the battery box.

[0006] Preferably, supporting legs are integrally provided at the four corners of the bottom of the battery box, and the bottom end of the area between the four supporting legs is fixedly connected to a water tank, a fan is fixedly installed on the outside of the water tank, the air inlet end of the fan is fixedly connected to an air suction pipe, and the end of the air suction pipe passes through the water tank, the air outlet end of the fan is fixedly connected to a ventilation pipe, and the end of the ventilation pipe is fixedly connected to the top of the mounting cover, and the mounting cover is located on one side of the inside of the battery box with air outlets fixedly installed at equal distances, and the top of the air outlet passes through the mounting cover and is connected to the inside of the ventilation pipe.

[0007] Preferably, a section of the ventilation pipe located on the top of the installation cover is arranged in a wavy line structure.

[0008] Preferably, a temperature sensor is fixedly mounted on the inner wall of the battery box.

[0009] Preferably, the mounting groove is made of a heat-conducting material, and ventilation holes are equidistantly provided on the outside of the mounting groove.

[0010] Preferably, the top of the heat dissipation fin is provided with connecting grooves at equal intervals, and the connecting grooves run through both sides of the battery box.

[0011] Preferably, the ventilation pipe is an elastic hose.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with four heat dissipation ports. Part of the heat inside the battery box is dissipated through the heat dissipation ports at the bottom ends of the four side walls of the battery box, part of the heat is discharged through the connecting grooves on the heat dissipation fins, and part of the heat is conducted to the outside through the heat dissipation fins, so that the purpose of efficient heat dissipation can be achieved when the battery is working normally.

[0014] 2. In the utility model, when the battery body generates excessive heat due to continuous operation, the temperature sensor receives a signal and transmits the signal to the control system set in the device. The control system of the device controls the fan to operate so that the absorbed cool air is blown to the area between two adjacent battery bodies inside the battery box through multiple air outlets, so that the heat generated by each battery body can be quickly dissipated through the heat dissipation port, which will not cause the accumulation of internal heat in the area, and the heat dissipation is more uniform and thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall internal connection structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the enlarged view of point A of the utility model;

[0017] Figure 3 It is a schematic diagram of the connection structure between the ventilation pipe and the installation cover of the utility model.

[0018] In the figure: 1. Battery box; 2. Installation cover; 3. Heat dissipation port; 4. Installation slot; 5. Battery body; 6. Ventilation hole; 7. Heat dissipation fin; 8. Connecting slot; 9. Temperature sensor; 10. Support leg; 11. Water tank; 12. Fan; 13. Ventilation duct; 14. Air outlet. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 The utility model provides a technical solution: a heat dissipation device for an electric vehicle battery, comprising a battery box 1, a mounting cover 2 is fixedly connected to the top of the battery box 1, and heat dissipation ports 3 are provided at the bottom ends of the four side walls of the battery box 1. By setting the four heat dissipation ports 3, part of the heat inside the battery box 1 is dissipated through the heat dissipation ports 3 at the bottom ends of the four side walls of the battery box 1.

[0021] The battery box 1 has mounting grooves 4 fixedly connected at equal intervals inside, and a battery body 5 is installed inside the mounting grooves 4. Heat dissipation fins 7 are fixedly installed at the bottom of the battery box 1. The heat inside the battery box 1 can be discharged through the connecting grooves 8 on the heat dissipation fins 7, and a part of the heat is conducted to the outside through the heat dissipation fins 7, so that the purpose of efficient heat dissipation can be achieved when the battery is working normally.

[0022] When the utility model is used, the battery body 5 is installed in the mounting groove 4, and the mounting groove 4 has a good thermal conductivity. The heat generated by the battery body 5 during operation is dissipated to the inside of the battery box 1 through the vents 6. When the battery body 5 is in normal use, part of the heat inside the battery box 1 is dissipated through the heat dissipation ports 3 at the bottom ends of the four side walls of the battery box 1, part of the heat is discharged through the connecting grooves 8 on the heat dissipation fins 7, and part of the heat is conducted to the outside through the heat dissipation fins 7. When the battery body 5 generates too much heat due to continuous operation, the heat condition inside the battery box 1 can be monitored by the temperature sensor 9. When the heat inside the battery box 1 exceeds the value set by the temperature sensor 9, the temperature sensor 9 receives a signal and transmits the signal to the control system set in the device. The control system of the device controls the fan 12 to work, so that the absorbed cool air is blown to the area between two adjacent battery bodies 5 inside the battery box 1 through multiple air outlets 14, so that the heat generated by each battery body 5 can be quickly dissipated through the heat dissipation ports 3, and will not cause the internal heat to accumulate in the area, and the heat dissipation is more uniform and thorough.

[0023] The four corners of the bottom of the battery box 1 are integrally provided with supporting legs 10, and the bottom end of the area between the four supporting legs 10 is fixedly connected to a water tank 11, and a fan 12 is fixedly installed on the outside of the water tank 11, and the air inlet end of the fan 12 is fixedly connected to an air suction pipe, and the end of the air suction pipe passes through the water tank 11, and the air outlet end of the fan 12 is fixedly connected to a ventilation pipe 13, and the end of the ventilation pipe 13 is fixedly connected to the top of the mounting cover 2, and an air outlet 14 is equidistantly fixedly installed on one side of the mounting cover 2 inside the battery box 1, and the top of the air outlet 14 passes through the mounting cover 2 and is connected to the inside of the ventilation pipe 13.

[0024] It should be noted that when the battery body 5 generates too much heat due to continuous operation, the control system of the device controls the fan 12 to operate so that the absorbed cool air is blown to the area between two adjacent battery bodies 5 inside the battery box 1 through multiple air outlets 14, so that the heat generated by each battery body 5 can be quickly dissipated through the heat dissipation port 3.

[0025] A section of the ventilation pipe 13 located at the top of the installation cover 2 is arranged in a wavy line structure.

[0026] It should be noted that, when the fan 12 is working, the absorbed cool air is blown toward the area between two adjacent battery bodies 5 inside the battery box 1 through multiple air outlets 14, so that the heat generated by each battery body 5 can be quickly dissipated through the heat dissipation port 3. The ventilation duct 13 arranged in a wavy line structure on the top of the installation cover 2 can make the air outlets 14 installed thereon distributed over a large area inside the battery box 1, thereby expanding the heat dissipation range and being able to dissipate heat at various locations where the battery body 5 is installed.

[0027] A temperature sensor 9 is fixedly mounted on the inner wall of the battery box 1 .

[0028] It should be noted that the temperature sensor 9 can monitor the heat conditions inside the battery box 1. When the heat inside the battery box 1 exceeds the value set by the temperature sensor 9, the temperature sensor 9 receives a signal and transmits the signal to the control system set in the device. The control system of the device controls the fan 12 to operate, so that the absorbed cool air is blown to the area between two adjacent battery bodies 5 inside the battery box 1 through multiple air outlets 14, so that the heat generated by each battery body 5 can be quickly dissipated through the heat dissipation port 3.

[0029] The mounting groove 4 is made of a heat-conducting material, and vent holes 6 are equidistantly formed outside the mounting groove 4 .

[0030] It should be noted that the battery body 5 is installed in the installation groove 4, which has a good thermal conductivity. The heat generated by the battery body 5 during operation is dissipated to the inside of the battery box 1 through the vent 6, and the heat inside the battery box 1 can be discharged from the heat dissipation port 3.

[0031] The top of the heat dissipation fin 7 is provided with connecting grooves 8 at equal intervals, and the connecting grooves 8 penetrate through both sides of the battery box 1 .

[0032] It should be noted that part of the heat inside the battery box 1 can be dissipated through the heat dissipation ports 3 at the bottom ends of the four side walls of the battery box 1 , part of it can be discharged through the connecting grooves 8 on the heat dissipation fins 7 , and part of it can be conducted to the outside through the heat dissipation fins 7 .

[0033] The ventilation pipe 13 is an elastic hose.

[0034] It should be noted that the ventilation pipe 13 is configured as an elastic hose so that when the installation cover 2 is opened, the ventilation pipe 13 does not affect the position change of the installation cover 2, thereby avoiding damage to the ventilation pipe 13 caused by the movement of the installation cover 2.

[0035] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0037] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0038] 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. An electric vehicle battery heat dissipation device, comprising a battery box (1), characterized in that: The top of the battery box (1) is fixedly connected to a mounting cover (2), the bottom ends of the four side walls of the battery box (1) are provided with heat dissipation openings (3), the interior of the battery box (1) is fixedly connected to mounting grooves (4) at equal intervals, and a battery body (5) is mounted in the mounting grooves (4), and the bottom of the battery box (1) is fixedly mounted with heat dissipation fins (7).

2. The electric vehicle battery heat dissipation device according to claim 1, characterized in that: The four corners of the bottom of the battery box (1) are integrally provided with support legs (10), and the bottom end of the area between the four support legs (10) is fixedly connected to a water tank (11), a fan (12) is fixedly installed outside the water tank (11), an air inlet end of the fan (12) is fixedly connected to an air suction pipe, and the end of the air suction pipe passes through the water tank (11), an air outlet end of the fan (12) is fixedly connected to a ventilation pipe (13), and the end of the ventilation pipe (13) is fixedly connected to the top of the installation cover (2), and an air outlet (14) is fixedly installed equidistantly on one side of the installation cover (2) located inside the battery box (1), and the top of the air outlet (14) passes through the installation cover (2) and is connected to the inside of the ventilation pipe (13).

3. The electric vehicle battery heat dissipation device according to claim 2, characterized in that: The ventilation pipe (13) is located at a section of the top of the installation cover (2) and is arranged in a wavy line structure.

4. The electric vehicle battery heat dissipation device according to claim 1, characterized in that: A temperature sensor (9) is fixedly mounted on the inner wall of the battery box (1).

5. The electric vehicle battery heat dissipation device according to claim 1, characterized in that: The installation groove (4) is made of a heat-conducting material, and ventilation holes (6) are equidistantly arranged outside the installation groove (4).

6. The electric vehicle battery heat dissipation device according to claim 1, characterized in that: The top ends of the heat dissipation fins (7) are provided with connecting grooves (8) at equal intervals, and the connecting grooves (8) penetrate through both sides of the battery box (1).

7. The electric vehicle battery heat dissipation device according to claim 3, characterized in that: The ventilation pipe (13) is an elastic hose.

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