A water-cooling heat dissipation device for a new energy vehicle battery pack

Abstract

The application discloses a water-cooling heat dissipation device for a new energy automobile battery pack, which comprises a base cooling mechanism, a battery module is fixedly installed on the base cooling mechanism, a first temperature sensor is fixedly installed on one side of the front face of the base cooling mechanism, a battery cover is fixedly connected to the top of the base cooling mechanism through screws, the battery module is located in the battery cover, and a second temperature sensor is fixedly installed on the top of the right side of the battery cover. The base cooling mechanism is arranged, the monitoring function of the first temperature sensor on the external temperature is matched, the air flow entering the battery cover from below the base cooling mechanism can be timely adjusted when the external temperature is too high, the hot air in the battery cover is effectively promoted to flow upwards by the air flow, and the application has the characteristics of high practicability.

Description

Technical Field

[0001] This invention relates to the field of new energy technology, specifically to a water-cooling heat dissipation device for a new energy vehicle battery pack. Background Technology

[0002] Compared to the traditional automotive industry, electric vehicles (EVs) use electricity as their power source, fundamentally changing the energy source used in traditional automobiles. Most traditional cars use fossil fuels, but EVs primarily use electricity, representing a significant transformation driven by societal development. The core of EV development lies in its batteries; EV batteries represent a major breakthrough for the modern industry.

[0003] Currently, most water-cooling methods used in new energy vehicle battery packs are attached, only providing cooling to one side of the battery pack. This method has limited effectiveness in high ambient temperatures during summer, resulting in poor practicality. Therefore, it is essential to design a more practical water-cooling system for new energy vehicle battery packs. Summary of the Invention

[0004] The purpose of this invention is to provide a water-cooled heat dissipation device for a new energy vehicle battery pack, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a water-cooled heat dissipation device for a new energy vehicle battery pack, including a base cooling mechanism, a battery module fixedly installed on the base cooling mechanism, a first temperature sensor fixedly installed on one side of the front of the base cooling mechanism, a battery cover fixedly connected to the top of the base cooling mechanism by screws, the battery module being located inside the battery cover, a second temperature sensor fixedly installed on the top right side of the battery cover, a water-cooling mechanism fixedly installed on the battery module, a top cooling mechanism embedded in the top of the battery cover, the top cooling mechanism longitudinally penetrating the inner and outer sides of the top of the battery cover, and the top of the battery cover being fixedly connected to the top cooling mechanism by four lifting mechanisms.

[0006] According to the above technical solution, the base cooling mechanism includes a first fixed frame. Two electric push rods are symmetrically arranged in the first fixed frame, and the electric push rods are fixedly connected to the inner bottom of the first fixed frame. The output ends of the two electric push rods are fixedly connected to one end of a rack. Several pins are arranged in a row and equidistantly inserted in the first fixed frame. The two ends of the pins extend to both sides of the inner cavity of the first fixed frame and are located below the rack. Gears are fitted on both ends of the pins, and the upper side of the gears meshes with the rack. A rotating plate is fitted in the middle of the pins, and an elastic filter screen is glued between every two adjacent rotating plates.

[0007] According to the above technical solution, the input end of the electric push rod is electrically connected to the output end of the first temperature sensor. When the first temperature sensor detects that the external temperature is greater than 40 degrees Celsius, the electric push rod is activated. When the external temperature is lower than 40 degrees Celsius, the electric push rod is deactivated and its output end is reset.

[0008] According to the above technical solution, the water cooling mechanism includes a heat-conducting frame plate, which is fitted onto the battery module. A heat-conducting cooling pipe is fixedly connected to the side of the heat-conducting frame plate opposite to the battery module. An inlet pipe and an outlet pipe are fixedly connected to the right side of the top cooling mechanism. A water pump is fixedly installed on the right side of the top of the base cooling mechanism. The outlet of the water pump is fixedly connected to the bottom end of the inlet pipe, and the inlet of the water pump is fixedly connected to the bottom end of the outlet pipe. A one-way valve communicating with the inner cavity of the water pump is installed on the top of the water pump.

[0009] According to the above technical solution, the heat-conducting frame plate is made of copper with excellent thermal conductivity, and the heat-conducting cooling pipe is also made of copper with excellent thermal conductivity. The heat-conducting cooling pipe is filled with coolant, and both ends of the heat-conducting cooling pipe are fixedly connected to the left side of the bottom of the top cooling mechanism.

[0010] According to the above technical solution, the top cooling mechanism includes a second fixed frame, which is embedded in the top of the battery cover and extends through its inner and outer sides. The bottom of the front and rear sides of the second fixed frame are provided with heat dissipation grooves that are evenly distributed in a row. Two mounting brackets are fixedly connected inside the second fixed frame, and a cooling fan is fixedly installed on each of the two mounting brackets. Several heat dissipation fins that are evenly distributed in a row are fixedly connected to the middle of the second fixed frame.

[0011] According to the above technical solution, the interior of the second fixing frame is hollow, the heat sink is hollow, and the inner cavity of the second fixing frame is connected to the inner cavities of the heat sink, the hot water cooling pipe, the liquid inlet pipe, and the liquid outlet pipe.

[0012] According to the above technical solution, the lifting mechanism includes a cylinder, which is fixedly installed on the top of the battery cover, and the output end of the cylinder is fixedly connected to the connecting piece. One side of the connecting piece is fixedly connected to the top of the second fixed frame, and the output end of the second temperature sensor is electrically connected to the input ends of the four cylinders.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting a base cooling mechanism and cooperating with the monitoring function of the first temperature sensor for the external temperature, can adjust the airflow entering the battery cover through the base cooling mechanism in a timely manner when the external temperature is too high. This effectively utilizes airflow to promote the upward flow of hot air inside the battery cover, and can achieve a dust-proof effect using an elastic filter when the external temperature is normal. When the temperature is high, the rotating plate rotates to adjust the airflow, and the elastic filter is stretched, increasing its pore size and further improving the airflow.

[0014] Meanwhile, by setting up a water-cooling mechanism, the present invention can effectively concentrate the heat generated during the operation of the battery module, and transfer the heat to the flowing water coolant through heat conduction. The water coolant itself absorbs heat and cools down the operating temperature of the battery module.

[0015] Meanwhile, by setting a top cooling mechanism, the present invention can effectively utilize air cooling to cool the coolant in the water cooling mechanism, and use heat sinks to further transfer the heat in the coolant to the air above the second fixed frame, which is then discharged from the battery cover along with the airflow blown out by the cooling fan, thus achieving a complete water cooling measure. Utilizing the physical property of hot air flowing upward, external air enters the battery cover through the bottom of the battery module, flows through the heat-conducting frame plate, and is finally discharged through the top of the battery cover, forming an orderly airflow channel and achieving a sufficient heat dissipation and cooling effect inside the battery cover. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention with the battery cover removed;

[0019] Figure 3 This is a schematic diagram of the structure of the present invention with the battery cover removed from another perspective;

[0020] Figure 4 This is a schematic diagram of the top cooling mechanism of the present invention;

[0021] Figure 5 This is a schematic diagram of the base cooling mechanism of the present invention;

[0022] Figure 6 This is a structural cross-sectional view of one side of the base cooling mechanism of the present invention;

[0023] In the diagram: 1. Base cooling mechanism, 2. Battery module, 3. First temperature sensor, 4. Battery cover, 5. Second temperature sensor, 6. Water cooling mechanism, 7. Top cooling mechanism, 8. Cylinder, 9. Connecting plate, 11. First fixing frame, 12. Electric push rod, 13. Rack, 14. Pin, 15. Gear, 16. Rotating plate, 17. Elastic filter, 61. Heat-conducting frame plate, 62. Hot water cooling pipe, 63. Inlet pipe, 64. Outlet pipe, 65. Water pump, 66. One-way valve, 71. Second fixing frame, 72. Heat dissipation slot, 73. Mounting bracket, 74. Cooling fan, 75. Heat sink. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-6 The present invention provides a technical solution: a water-cooled heat dissipation device for a new energy vehicle battery pack, including a base cooling mechanism 1, a battery module 2 fixedly installed on the base cooling mechanism 1, a first temperature sensor 3 fixedly installed on one side of the front of the base cooling mechanism 1, a battery cover 4 fixedly connected to the top of the base cooling mechanism 1 by screws, the battery module 2 located inside the battery cover 4, a second temperature sensor 5 fixedly installed on the top right side of the battery cover 4, a water cooling mechanism 6 fixedly installed on the battery module 2, a top cooling mechanism 7 embedded in the top of the battery cover 4, the top cooling mechanism 7 longitudinally penetrating the inner and outer sides of the top of the battery cover 4, and the top of the battery cover 4 fixedly connected to the top cooling mechanism 7 by four lifting mechanisms;

[0026] The base cooling mechanism 1 includes a first fixed frame 11. Two electric push rods 12 are symmetrically arranged in the first fixed frame 11, and the electric push rods 12 are fixedly connected to the bottom of the first fixed frame 11. The output ends of the two electric push rods 12 are fixedly connected to one end of the rack 13. Several pins 14 are arranged in a row and equidistantly inserted in the first fixed frame 11. The two ends of the pins 14 extend to the two sides of the inner cavity of the first fixed frame 11 and are located below the rack 13. Gears 15 are fitted on both ends of the pins 14, and the upper side of the gears 15 meshes with the rack 13. A rotating plate 16 is fitted in the middle of the pins 14, and an elastic filter screen 17 is glued between every two adjacent rotating plates 16.

[0027] The input end of the electric push rod 12 is electrically connected to the output end of the first temperature sensor 3. When the first temperature sensor 3 detects that the outside temperature is greater than 40 degrees Celsius, the electric push rod 12 is activated. When the outside temperature is lower than 40 degrees Celsius, the electric push rod 12 is deactivated and its output end is reset.

[0028] The water cooling mechanism 6 includes a heat-conducting frame plate 61, which is fitted onto the battery module 2. A heat-conducting cooling pipe 62 is fixedly connected to the side of the heat-conducting frame plate 61 opposite to the battery module 2. An inlet pipe 63 and an outlet pipe 64 are fixedly connected to the right side of the top cooling mechanism 7. A water pump 65 is fixedly installed on the right side of the top of the base cooling mechanism 1. The outlet of the water pump 65 is fixedly connected to the bottom end of the inlet pipe 63, and the inlet of the water pump is fixedly connected to the bottom end of the outlet pipe 64. A one-way valve 66 is installed on the top of the water pump to connect to its internal cavity.

[0029] The heat-conducting frame plate 61 is made of copper, which has excellent thermal conductivity. The heat-conducting cooling pipe 62 is also made of copper, which has excellent thermal conductivity. The heat-conducting cooling pipe 62 is filled with coolant, and both ends of the heat-conducting cooling pipe 62 are fixedly connected to the left side of the bottom of the top cooling mechanism 7.

[0030] The top cooling mechanism 7 includes a second fixing frame 71, which is embedded in the top of the battery cover 4 and extends through its inner and outer sides. The bottom of the front and rear sides of the second fixing frame 71 are provided with heat dissipation slots 72 that are evenly distributed in a row. Two mounting brackets 73 are fixedly connected inside the second fixing frame 71, and a cooling fan 74 is fixedly installed on each of the two mounting brackets 73. Several heat dissipation fins 75 that are evenly distributed in a row are fixedly connected to the middle of the second fixing frame 71.

[0031] The interior of the second fixing frame 71 is hollow, the heat sink 75 is hollow, and the inner cavity of the second fixing frame 71 is connected to the inner cavities of the heat sink 75, the hot water cooling pipe 62, the liquid inlet pipe 63 and the liquid outlet pipe 64.

[0032] The lifting mechanism includes a cylinder 8, which is fixedly installed on the top of the battery cover 4. The output end of the cylinder 8 is fixedly connected to the connecting piece 9. One side of the connecting piece 9 is fixedly connected to the top of the second fixed frame 71. The output end of the second temperature sensor 5 is electrically connected to the input ends of the four cylinders 8.

[0033] In use, when the first temperature sensor 3 detects that the external temperature is greater than 40 degrees Celsius, it activates the electric push rod 12, causing its output end to push the rack 13 to move and mesh with the gear 15. This causes the gear 15 to rotate, driving the pin 14 and the rotating plate 16 to rotate 90 degrees. After the rotating plate 16 rotates, the distance between adjacent rotating plates 16 increases, thereby increasing the airflow into the battery cover 4 through the bottom of the first fixed frame 11. This effectively promotes the upward flow of hot air inside the battery cover 4. At the same time, when the rotating plate 16 is not rotating, the elastic filter 17 can prevent external dust from entering the battery cover 4. When the mesh 17 is stretched by the rotating plate 16, the aperture increases, further increasing the airflow into the battery cover 4. When the external temperature is below 40 degrees Celsius, the first temperature sensor 3 shuts off the electric push rod 12 to reset it, which in turn drives the rack 13, gear 15, rotating plate 16, and elastic filter 17 to reset. The heat generated during the operation of the battery module 2 is transferred to the hot water cooling pipe 62 through the heat-conducting frame plate 61. The water pump 65 pumps the coolant in the hot water cooling pipe 62 to the second fixed frame 71 and heat sink 75, and then into the water pump through the outlet pipe 64. The coolant flows back to the second fixed frame 71, heat sink 75, and hot water cooling pipe 62 through the inlet and outlet pipe 63. As the coolant passes through the heat sink 75, the cooling fan 74 operates, carrying the heat transferred to the outside via the heat sink 75 and expelling it from above the battery cover 4 along with the airflow. Simultaneously, the cooling fan 74 accelerates the upward flow of the airflow below. This airflow, when flowing through the heat-conducting frame plate 61 and the hot water cooling pipe 62, also provides a cooling effect. The vertical connection between the hot water cooling pipe 62 and the second fixed frame 71 is a flexible hose with deformation and tensile capabilities. The inlet pipe 63 and outlet pipe... All liquid pipes 64 are flexible hoses. When the second sensor 5 detects that the external temperature is greater than 40 degrees Celsius, the cylinder 8 is activated, causing its output end to move upward and drive the second fixed frame 71 to move upward. When the second fixed frame 71 moves out from the top of the battery cover 4, it further promotes the discharge of hot air inside the battery cover 4 through the connection between the second fixed frame 71 and the battery cover 4 and the heat dissipation groove 72, thereby further increasing the heat dissipation effect inside the battery cover 4. When the external temperature is lower than 40 degrees Celsius, the cylinder 8 output end resets, driving the connecting piece 9 and the second fixed frame 71 to reset.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A water-cooled heat dissipation device for a new energy vehicle battery pack, comprising a base cooling mechanism (1), characterized in that: A battery module (2) is fixedly installed on the base cooling mechanism (1). A first temperature sensor (3) is fixedly installed on one side of the front of the base cooling mechanism (1). A battery cover (4) is fixedly connected to the top of the base cooling mechanism (1) by screws. The battery module (2) is located inside the battery cover (4). A second temperature sensor (5) is fixedly installed on the top right side of the battery cover (4). A water cooling mechanism (6) is fixedly installed on the battery module (2). A top cooling mechanism (7) is embedded in the top of the battery cover (4). The top cooling mechanism (7) runs longitudinally through the inner and outer sides of the top of the battery cover (4). The top of the battery cover (4) is fixedly connected to the top cooling mechanism (7) through four lifting mechanisms. The base cooling mechanism (1) includes a first fixed frame (11). Two electric push rods (12) are symmetrically arranged in the first fixed frame (11), and the electric push rods (12) are fixedly connected to the bottom of the first fixed frame (11). The output ends of the two electric push rods (12) are fixedly connected to one end of the rack (13). Several pins (14) are arranged in a row and equidistantly inserted in the first fixed frame (11). The two ends of the pins (14) extend to the two sides of the inner cavity of the first fixed frame (11) and are located below the rack (13). Gears (15) are fitted on both ends of the pins (14), and the upper side of the gears (15) meshes with the rack (13). A rotating plate (16) is fitted in the middle of the pins (14), and an elastic filter screen (17) is bonded between every two adjacent rotating plates (16). The input end of the electric push rod (12) is electrically connected to the output end of the first temperature sensor (3). When the first temperature sensor (3) detects that the outside temperature is greater than 40 degrees Celsius, the electric push rod (12) is activated. When the outside temperature is lower than 40 degrees Celsius, the electric push rod (12) is turned off to reset its output end. The water cooling mechanism (6) includes a heat-conducting frame plate (61), which is fitted onto the battery module (2). A heat-conducting cooling pipe (62) is fixedly connected to one side of the heat-conducting frame plate (61) opposite to the battery module (2). An inlet pipe (63) and an outlet pipe (64) are fixedly connected to the right side of the top cooling mechanism (7). A water pump (65) is fixedly installed on the right side of the top of the base cooling mechanism (1). The outlet of the water pump (65) is fixedly connected to the bottom end of the inlet pipe (63), and the inlet of the water pump is fixedly connected to the bottom end of the outlet pipe (64). A one-way valve (66) connecting its inner cavity is installed on the top of the water pump. The top cooling mechanism (7) includes a second fixed frame (71), which is embedded in the top of the battery cover (4) and extends through its inner and outer sides. The bottom of the front and rear sides of the second fixed frame (71) is provided with heat dissipation grooves (72) arranged in rows at equal intervals. Two mounting brackets (73) are fixedly connected inside the second fixed frame (71), and cooling fans (74) are fixedly installed on the two mounting brackets (73). Several heat dissipation fins (75) arranged in rows at equal intervals are fixedly connected to the middle of the second fixed frame (71). The interior of the second fixing frame (71) is hollow, the heat sink (75) is hollow, and the inner cavity of the second fixing frame (71) is connected to the inner cavities of the heat sink (75), the hot water cooling pipe (62), the liquid inlet pipe (63) and the liquid outlet pipe (64).

2. The water-cooled heat dissipation device for a new energy vehicle battery pack according to claim 1, characterized in that: The heat-conducting frame plate (61) is made of copper, the heat-conducting cooling pipe (62) is made of copper, the heat-conducting cooling pipe (62) is filled with coolant, and both ends of the heat-conducting cooling pipe (62) are fixedly connected to the left side of the bottom of the top cooling mechanism (7).

3. The water-cooled heat dissipation device for a new energy vehicle battery pack according to claim 2, characterized in that: The lifting mechanism includes a cylinder (8), which is fixedly installed on the top of the battery cover (4). The output end of the cylinder (8) is fixedly connected to the connecting piece (9). One side of the connecting piece (9) is fixedly connected to the top of the second fixed frame (71). The output end of the second temperature sensor (5) is electrically connected to the input end of the four cylinders (8).

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