Liquid-cooled battery box structure

Abstract

The utility model discloses a liquid-cooled battery box structure, which relates to the technical field of battery box structures, and comprises a box body, an extension plate, a liquid-cooled mechanism, an air-cooled mechanism and a temperature sensor, the box body is a cover-shaped piece with a downward opening, a battery assembly is arranged in the box body, the extension plate is arranged on the periphery of the bottom of the box body, and the bottom of the extension plate is connected with the liquid-cooled mechanism. An air cooling mechanism is arranged on the surface of one side of the exterior of the box body, and a temperature sensor is arranged on one side of the exterior of the box body. The battery box disclosed by the utility model has the beneficial effects that when the temperature sensor monitors that the temperature is too high, the driving motor works to drive the exhaust fan on the output shaft to rotate, so that a rapid heat dissipation effect is achieved, and the battery box is stably cooled; the liquid inlet pipe and the liquid outlet pipe are arranged outside and do not need to pass through the interior of the battery pack, pipe joints are reduced, the process difficulty and the assembly cost are reduced, the liquid cooling mechanism works, heat generated by the batteries is taken away, potential safety hazards are reduced, and it is guaranteed that the battery pack device can operate at the normal temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of battery box structures, in particular to a liquid-cooled battery box structure. Background Art

[0002] In recent years, with the rise of the domestic electric vehicle market, electric vehicle batteries can be divided into two categories, namely batteries and fuel cells. Batteries are suitable for pure electric vehicles, and fuel cells are dedicated to fuel cell new energy vehicles. The electric vehicle battery pack is composed of multiple batteries stacked in series. When the electric vehicle is started and loaded with a large load, the battery pack discharges a large power and the temperature is high. When the vehicle is used for a long time, the existing battery box will generate a lot of heat. If the heat is not dissipated in time, there will be safety hazards. At the same time, due to the complex structure of the liquid-cooled battery pack, the cost is relatively high. Utility Model Content

[0003] The utility model provides a liquid cooling battery box structure, which solves the existing problems.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a liquid-cooled battery box structure, including a box body, an extension plate, a liquid cooling mechanism, an air cooling mechanism and a temperature sensor, the box body is a cover-shaped member opening downward, a battery assembly is arranged in the box body, an extension plate is arranged on the periphery of the bottom of the box body, the bottom of the extension plate is connected to the liquid cooling mechanism, an air cooling mechanism is arranged on the surface of one side of the outside of the box body, and a temperature sensor is arranged on one side of the outside of the box body.

[0005] Preferably, the liquid cooling mechanism includes a liquid cooling plate, a guide plate, a guide groove, a liquid inlet pipe and a liquid outlet pipe. A liquid cooling plate is provided under the extension plate, and a plurality of guide plates are provided inside the liquid cooling plate. The liquid cooling plate and the guide plate form a guide groove. A liquid inlet pipe is provided on one side of the outside of the box body, and a liquid outlet pipe is provided under the liquid inlet pipe.

[0006] Preferably, the air cooling mechanism includes a shell, a drive motor, an exhaust fan and a heat dissipation port. A shell is provided on one side of the outside of the box body, the inside of the shell is hollow, a drive motor is provided on the inner wall of the shell, an exhaust fan is provided on the output shaft of the drive motor, and heat dissipation ports are provided on both sides of the shell.

[0007] Preferably, the extension plate is provided with a plurality of threaded holes at equal intervals, and the bottom of the extension plate is connected to the liquid cooling plate by bolts.

[0008] Preferably, the signal output end of the temperature sensor is electrically connected to the signal receiving end of the drive motor.

[0009] Preferably, reinforcing fins are symmetrically provided on both sides of the liquid cooling plate.

[0010] The beneficial effects of the utility model are as follows: when the automobile battery assembly works for a long time and the temperature sensor detects that the temperature is too high, the signal output end of the temperature sensor is electrically connected to the signal receiving end of the drive motor, driving the drive motor to work, driving the exhaust fan on the output shaft to rotate, so as to quickly dissipate heat and stably cool the battery box. The liquid inlet pipe and the liquid outlet pipe are both arranged on the outside and do not need to pass through the inside of the battery pack, thus reducing pipe joints, reducing process difficulty and assembly cost. Reinforced fins are symmetrically arranged on both sides of the liquid cooling plate to expand the heat dissipation surface and increase the heat dissipation speed, thereby effectively improving the service life. The liquid cooling mechanism works to take away the heat generated by the battery, reduce safety hazards, and ensure that the battery pack device can operate at a normal temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model.

[0013] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0014] Numbers in the figure: 1. Box body; 2. Extension plate; 3. Liquid inlet pipe; 4. Liquid outlet pipe; 5. Liquid cooling mechanism; 6. Air cooling mechanism; 7. Liquid cooling plate; 8. Guide plate; 9. Guide groove; 10. Shell; 11. Drive motor; 12. Exhaust fan; 13. Heat dissipation port; 14. Threaded hole; 15. Bolt; 16. Temperature sensor; 17. Strengthening fins. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] Reference Figure 1-Figure 3 As shown, a liquid-cooled battery box structure includes a box body 1, an extension plate 2, a liquid cooling mechanism 5, an air cooling mechanism 6 and a temperature sensor 16. The box body 1 is a cover-like member with an opening facing downward. A battery assembly is arranged in the box body 1. An extension plate 2 is arranged on the outer periphery of the bottom of the box body 1. The bottom of the extension plate 2 is connected to the liquid cooling mechanism 5. An air cooling mechanism 6 is arranged on the surface of one side of the outside of the box body 1. A temperature sensor 16 is arranged on one side of the outside of the box body 1.

[0017] The liquid cooling mechanism 5 includes a liquid cooling plate 7, a guide plate 8, a guide groove 9, a liquid inlet pipe 3 and a liquid outlet pipe 4. A liquid cooling plate 7 is provided under the extension plate 2, and a plurality of guide plates 8 are provided inside the liquid cooling plate 7. The liquid cooling plate 7 and the guide plate 8 form a guide groove 9. A liquid inlet pipe 3 is provided on one side of the outside of the box body 1, and a liquid outlet pipe 4 is provided below the liquid inlet pipe 3. The liquid inlet pipe 3 and the liquid outlet pipe 4 are both arranged on the outside and do not need to pass through the inside of the battery pack, thereby reducing pipe joints, reducing process difficulty and assembly cost. When the liquid cooling mechanism 5 works, it takes away the heat generated by the battery, reduces safety hazards, and ensures that the battery pack device can operate at a normal temperature.

[0018] The air cooling mechanism 6 includes a shell 10, a driving motor 11, an exhaust fan 12 and a heat dissipation port 13. The shell 10 is provided on one side of the outer side of the box body 1. The interior of the shell 10 is hollow. The driving motor 11 is provided on the inner wall of the shell 10. The exhaust fan 12 is provided on the output shaft of the driving motor 11. Heat dissipation ports 13 are provided on both sides of the shell 10. When the driving motor 11 works, it drives the exhaust fan 12 on the output shaft to rotate, so that the heat is quickly dissipated and the battery box is stably cooled.

[0019] The extension plate 2 is provided with a number of threaded holes 14 at equal intervals. The bottom of the extension plate 2 is connected to the liquid cooling plate 7 by bolts 15, which makes it easy to install and disassemble. The signal output end of the temperature sensor 16 is electrically connected to the signal receiving end of the drive motor 11, so that when the temperature is detected to be too high, it can automatically cool down and dissipate heat in time. Reinforced fins 17 are symmetrically provided on both sides of the liquid cooling plate 7 to expand the heat dissipation surface and increase the heat dissipation speed, thereby effectively improving the service life.

[0020] Working principle: When the device of the utility model is in use, when the automobile battery assembly works for a long time and the temperature sensor 16 detects that the temperature is too high, the signal output end of the temperature sensor 16 is electrically connected to the signal receiving end of the drive motor 11, driving the drive motor 11 to work, driving the exhaust fan 12 on the output shaft to rotate, so that the heat is quickly dissipated and the battery box is stably cooled. The liquid inlet pipe 3 and the liquid outlet pipe 4 are both arranged on the outside and do not need to pass through the inside of the battery pack, reducing pipe joints, reducing process difficulty and assembly cost. The liquid cooling mechanism 5 works to take away the heat generated by the battery, reducing safety hazards and ensuring that the battery pack device can operate at normal temperature.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid-cooled battery box structure, comprising a box body (1), an extension plate (2), a liquid cooling mechanism (5), an air cooling mechanism (6) and a temperature sensor (16), characterized in that: The box body (1) is a cover-shaped member with an opening facing downward, a battery assembly is arranged inside the box body (1), an extension plate (2) is arranged on the periphery of the bottom of the box body (1), the bottom of the extension plate (2) is connected to a liquid cooling mechanism (5), an air cooling mechanism (6) is arranged on the surface of one side of the outside of the box body (1), and a temperature sensor (16) is arranged on one side of the outside of the box body (1).

2. A liquid-cooled battery box structure according to claim 1, characterized in that: The liquid cooling mechanism (5) comprises a liquid cooling plate (7), a guide plate (8), a guide groove (9), a liquid inlet pipe (3) and a liquid outlet pipe (4); a liquid cooling plate (7) is provided below the extension plate (2); a plurality of guide plates (8) are provided inside the liquid cooling plate (7); the liquid cooling plate (7) and the guide plates (8) form a guide groove (9); a liquid inlet pipe (3) is provided on one side of the outside of the box body (1); and a liquid outlet pipe (4) is provided below the liquid inlet pipe (3).

3. The liquid-cooled battery box structure according to claim 1, characterized in that: The air cooling mechanism (6) comprises a shell (10), a drive motor (11), an exhaust fan (12) and a heat dissipation port (13); a shell (10) is provided on one side of the exterior of the box body (1); the interior of the shell (10) is hollow; a drive motor (11) is provided on the inner wall of the shell (10); an exhaust fan (12) is provided on the output shaft of the drive motor (11); and heat dissipation ports (13) are provided on both sides of the shell (10).

4. The liquid-cooled battery box structure according to claim 1, characterized in that: The extension plate (2) is provided with a plurality of threaded holes (14) at equal intervals, and the bottom of the extension plate (2) is connected to the liquid cooling plate (7) via bolts (15).

5. The liquid-cooled battery box structure according to claim 1, characterized in that: The signal output end of the temperature sensor (16) is electrically connected to the signal receiving end of the drive motor (11).

6. A liquid-cooled battery box structure according to claim 2, characterized in that: Reinforcement fins (17) are symmetrically provided on both sides of the liquid cooling plate (7).

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