Thermal management structure of power battery pack for new energy automobile

Abstract

The invention discloses a power battery pack heat management structure for a new energy automobile, which comprises a battery storage frame, a sealing cover plate arranged at the top of the battery storage frame, a ventilation structure arranged at the bottom of the sealing cover plate and a plurality of water cooling structures arranged on the outer wall of the battery storage frame, and an annular frame is arranged on the inner wall of the battery storage frame; an annular frame is arranged in the middle of the interior of the battery storage frame, a plurality of clamping grooves are formed in the annular frame at equal intervals, a heat-conducting column frame is arranged on the inner wall of the annular frame, a linkage disc is arranged in the middle of the interior of the battery storage frame, and a plurality of heat-conducting plates are arranged on the outer wall of the linkage disc at equal intervals; a plurality of arc-shaped grooves are formed in the outer wall of the battery storage frame, a liquid storage pipe is arranged in the middle of each arc-shaped groove, a liquid pump is arranged in the liquid collection tank, and the output end of the liquid pump is communicated with the liquid storage pipe through a drainage pipe. The power battery pack of the new energy automobile can be efficiently cooled, and the service life of the battery is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection equipment, and in particular to a thermal management structure of a power battery pack for new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use clean energy such as electricity and hydrogen as their power source, aiming to reduce dependence on traditional petroleum energy, reduce tail gas emissions, and reduce environmental pollution. New energy vehicles mainly include electric vehicles (including pure electric vehicles and hybrid vehicles) and fuel cell vehicles.

[0003] The battery pack of a new energy vehicle refers to a key component inside the vehicle that is used to store and release electrical energy. These battery packs generally use lithium-ion battery technology and are composed of multiple battery cells. Its function is to store electrical energy, supply the electric motor for driving, and convert kinetic energy into electrical energy for regeneration and charging when the vehicle brakes. The design and management of the battery pack of a new energy vehicle are crucial to vehicle performance, range, charging speed, safety, etc. In order to ensure the performance and life of the battery pack, it is usually equipped with an advanced battery management system to monitor parameters such as battery status, temperature, voltage and current, and to perform intelligent control and protection. In addition, the thermal management system is also an important part, which is used to control the temperature of the battery pack and keep it within the optimal operating range to improve the efficiency and life of the battery.

[0004] The existing thermal management structure of new energy vehicle battery packs cannot quickly control the temperature, which reduces the service life of the battery. Therefore, it is necessary to design corresponding technical solutions to solve the existing technical problems. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides a thermal management structure for a power battery pack for new energy vehicles, which solves the problem that the existing thermal management structure of the battery pack for new energy vehicles cannot quickly adjust the temperature, thereby reducing the service life of the battery.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a thermal management structure of a power battery pack for new energy vehicles, comprising a battery storage frame, a sealing cover plate arranged on the top of the battery storage frame, a ventilation structure arranged on the bottom of the sealing cover plate and a plurality of water cooling structures arranged on the outer wall of the battery storage frame, the inner wall of the battery storage frame is provided with an annular frame, and a plurality of card slots are equidistantly opened on the annular frame, the inner wall of the annular frame is provided with a heat-conducting column frame, a linking disk is arranged in the middle of the interior of the battery storage frame, and a plurality of heat-conducting plates are equidistantly arranged on the outer wall of the linking disk, the water cooling structure comprises a plurality of liquid collecting tanks, a plurality of arc grooves are opened on the outer wall of the battery storage frame, and a liquid storage pipe is arranged in the middle of the arc groove, a liquid pump is arranged inside the liquid collecting tank, the output end of the liquid pump is connected to the liquid storage pipe through a drain pipe, and a plurality of circulating water pipes are arranged on the liquid storage pipe.

[0009] As a further preferred embodiment of the present invention, a water inlet pipe is connected to the top of the liquid collecting tank, and a drainage pipe is arranged at the bottom of the liquid collecting tank.

[0010] As a further preferred embodiment of the present invention, a central duct is arranged at the bottom center of the covering plate, a plurality of pneumatic rods are equidistantly arranged on the outside of the central duct, a linkage shaft is sleeved on the central duct, a plurality of L-shaped connecting rods are connected to the outside of the linkage shaft, the output end of the pneumatic rod is connected to the connecting rod, and the bottom of the linkage shaft is connected to the ventilation structure.

[0011] As a further preferred embodiment of the present invention, the ventilation structure includes a column plate, the outer wall of the column plate is connected to a plurality of connecting rods, the outer sides of the plurality of connecting rods are connected to guide rings, the guide rings are provided with a plurality of fans, and the output ends of the fans are connected to exhaust ducts.

[0012] As a further preferred embodiment of the present invention, the bottom end of the central conduit is connected to a casting plate, the casting plate is a heat-conducting metal, and the bottom end of the casting plate can be plugged into a link plate.

[0013] As a further preferred embodiment of the present invention, a ventilation column is arranged on the top of the covering plate, an electromagnetic slide rail is arranged on the inner wall of the ventilation column, and a guide block is slidably connected to the electromagnetic slide rail, a linkage rod is connected to the inner side of the guide block, a filter column core is connected to the inner side of the linkage rod, a funnel-shaped blocking block is connected to the top of the blocking block, and a sealing plate is connected to the top of the blocking block.

[0014] As a further preferred embodiment of the present invention, the filter column core includes a nitrogen oxide adsorbent layer, an activated carbon adsorption layer, and a particulate matter filtration layer. The bottom of the nitrogen oxide adsorbent layer is connected to the activated carbon adsorption layer, and the bottom of the activated carbon adsorption layer is connected to the particulate matter filtration layer. The nitrogen oxide adsorbent layer includes titanium oxide, copper oxide, and zinc oxide, and the particulate matter filtration layer includes glass fiber, polyester fiber, and polypropylene.

[0015] (III) Beneficial effects

[0016] The present invention provides a thermal management structure for a power battery pack for new energy vehicles, which has the following beneficial effects:

[0017] (1) The thermal management structure of the power battery pack for new energy vehicles of the present invention uses a battery storage frame to store multiple battery packs, and at the same time, the battery is covered by a sealing plate on the top thereof. A ventilation structure is arranged at the bottom of the sealing plate, and a pneumatic rod can push the entire ventilation structure to move up and down. The outer wall of the column plate of the ventilation structure is connected with a plurality of connecting rods, and the outer sides of the plurality of connecting rods are connected with guide rings, and a plurality of fans are arranged on the guide rings, and the output end of the fan is connected with an exhaust pipe. The bottom end of the central duct is connected with a casting plate, which is a heat-conducting metal, and the bottom end of the casting plate can be plugged into the connecting plate. The entire ventilation structure can contact the bottom of the battery storage frame and discharge cold air through the exhaust pipe for blowing, and a ventilation column is arranged at the top of the sealing plate, and the guide block and the filter column core and the sealing block inside thereof are controlled to rise and fall by an electromagnetic slide rail, thereby opening the sealing plate and discharging the internal hot air.

[0018] (2) The water cooling structure of the present invention includes a plurality of liquid collecting tanks. The outer wall of the battery storage frame is provided with a plurality of arc-shaped grooves, and a liquid storage tube is provided in the middle of the arc-shaped grooves. A liquid pump is provided inside the liquid collecting tank. The output end of the liquid pump is connected to the liquid storage tube through a drain pipe. The liquid storage tube is provided with a plurality of circulating water pipes, so that the interior of the battery storage frame can be water-cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the side view of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the ventilation structure of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the water cooling structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the internal structure of the ventilation column of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the filter column core of the present invention.

[0025] In the figure: 1. battery storage frame; 2. cover plate; 3. ring frame; 4. column frame; 5. connecting plate; 6. heat conduction plate; 7. liquid collecting tank; 8. liquid storage pipe; 9. circulating water pipe; 10. water inlet pipe; 11. drain pipe; 12. central duct; 13. pneumatic rod; 14. linkage shaft; 15. connecting rod; 16. column plate; 17. connecting rod; 18. guide ring; 19. fan; 20. exhaust pipe; 21. casting plate; 22. ventilation column; 23. electromagnetic slide rail; 24. guide block; 25. linkage rod; 26. filter column core; 27. blocking block; 28. sealing plate; 29. ​​nitrogen oxide adsorbent layer; 30. activated carbon adsorption layer; 31. particulate matter filter layer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-6 , the embodiment of the present invention provides a technical solution:

[0028] A thermal management structure of a power battery pack for a new energy vehicle comprises a battery storage frame 1, a sealing cover plate 2 arranged on the top of the battery storage frame 1, a ventilation structure arranged on the bottom of the sealing cover plate 2 and a plurality of water cooling structures arranged on the outer wall of the battery storage frame 1, an annular frame 3 is arranged on the inner wall of the battery storage frame 1, and a plurality of slots are equidistantly provided on the annular frame 3, a heat-conducting column frame 4 is arranged on the inner wall of the annular frame 3, a linking disk 5 is arranged in the middle of the interior of the battery storage frame 1, and a plurality of heat-conducting plates 6 are equidistantly provided on the outer wall of the linking disk 5, the water cooling structure comprises a plurality of liquid collecting tanks 7, a plurality of arc grooves are opened on the outer wall of the battery storage frame 1, and a liquid storage tube 8 is arranged in the middle of the arc groove, a liquid pump is arranged inside the liquid collecting tank 7, an output end of the liquid pump is connected to the liquid storage tube 8 through a drain pipe 11, and a plurality of circulating water pipes 9 are arranged on the liquid storage tube 8.

[0029] The top of the liquid collecting tank 7 is connected with a water inlet pipe 10 , and the bottom of the liquid collecting tank 7 is provided with a drain pipe 11 . Water is injected into the tank through the water inlet pipe 10 , and part of the water inside is drained through the drain pipe 11 .

[0030] A central duct 12 is arranged at the bottom center of the covering plate 2, and a plurality of pneumatic rods 13 are equidistantly arranged on the outside of the central duct 12. A linkage shaft 14 is sleeved on the central duct 12, and a plurality of L-shaped connecting rods 15 are connected to the outside of the linkage shaft 14. The output end of the pneumatic rod 13 is connected to the connecting rod 15, and the bottom of the linkage shaft 14 is connected to the ventilation structure. The pneumatic rod 13 is used to drive the connecting rod 15 and the linkage shaft 14 to adjust their positions up and down, thereby adjusting the position of the ventilation structure.

[0031] The ventilation structure includes a column plate 16, the outer wall of the column plate 16 is connected to a plurality of connecting rods 17, the outer sides of the plurality of connecting rods 17 are connected to a guide ring 18, a plurality of fans 19 are arranged on the guide ring 18, and the output end of the fan 19 is connected to an exhaust duct 20, and the heat is dissipated by blowing air inside the battery storage frame 1 using the plurality of fans 19 and the exhaust duct 20 on the guide ring 18.

[0032] The bottom end of the central conduit 12 is connected to a casting plate 21 , which is a heat-conducting metal, and the bottom end of the casting plate 21 can be plugged into the link plate 5 , and the casting plate 21 is fixedly buckled and connected to the link plate 5 inside the battery storage frame 1 by using the casting plate 21 .

[0033] A ventilation column 22 is arranged at the top of the cover plate 2, and an electromagnetic slide rail 23 is arranged on the inner wall of the ventilation column 22, and a guide block 24 is slidably connected to the electromagnetic slide rail 23, and a linkage rod 25 is connected to the inner side of the guide block 24, and a filter column core 26 is connected to the inner side of the linkage rod 25, and a funnel-shaped blocking block 27 is connected to the top of the filter column core 26, and a sealing plate 28 is connected to the top of the blocking block 27. The sealing plate 28 is opened by using the ventilation column 22, so that the internal gas is discharged in cooperation with the ventilation structure to achieve a heat dissipation effect.

[0034] The filter column core 26 includes a nitrogen oxide adsorbent layer 29, an activated carbon adsorption layer 30, and a particulate filter layer 31. The bottom of the nitrogen oxide adsorbent layer 29 is connected to the activated carbon adsorption layer 30, and the bottom of the activated carbon adsorption layer 30 is connected to the particulate filter layer 31. The nitrogen oxide adsorbent layer 29 includes titanium oxide, copper oxide, and zinc oxide. The particulate filter layer 31 includes glass fiber, polyester fiber, and polypropylene. Activated carbon: Activated carbon is a material widely used to adsorb impurities in gases, liquids, and solutions. The activated carbon adsorption layer 30 has a large number of microporous structures and provides a large surface area for adsorbing gas molecules, including organic compounds and gaseous pollutants. Iron oxide can also be used as an adsorbent in some cases and has a certain adsorption capacity for some organic matter and gaseous pollutants. Zinc oxide is used for gas adsorption and has a certain adsorption effect on certain gaseous pollutants. Titanium oxide effectively adsorbs nitrogen oxides and other gaseous pollutants. Copper oxide can also be used as an adsorbent for nitrogen oxides.

[0035] Working principle: A battery storage frame 1 is used to store multiple battery packs, and a sealing plate 2 on the top of the battery is used to seal the battery. A ventilation structure is provided at the bottom of the sealing plate 2, and a pneumatic rod 13 can push the entire ventilation structure to move up and down. The outer wall of the column plate 16 of the ventilation structure is connected to a plurality of connecting rods 17, and the outer sides of the plurality of connecting rods 17 are connected to guide rings 18, and a plurality of fans 19 are provided on the guide rings 18, and the output end of the fan 19 is connected to an exhaust pipe 20, and the bottom end of the central conduit is connected to a casting plate 21, which is a heat-conducting metal, and the bottom end of the casting plate 21 can be plugged with the link plate 5, and the entire ventilation structure can contact the battery storage frame 1 The bottom of the battery storage frame 1 is opened, and the cold wind is discharged through the exhaust pipe 20 for blowing, and a ventilation column 22 is arranged on the top of the cover plate 2, and the guide block 24 and the filter column core 26 and the blocking block 27 inside thereof are controlled to rise and fall by the electromagnetic slide rail 23, so as to open the sealing plate 28 and discharge the internal hot air, and the water cooling structure includes a plurality of liquid collecting tanks 7, a plurality of arc grooves are opened on the outer wall of the battery storage frame 1, and a liquid storage pipe 8 is arranged in the middle of the arc groove, and a liquid pump is arranged inside the liquid collecting tank 7, and the output end of the liquid pump is connected with the liquid storage pipe 8 through the drain pipe 11, and a plurality of circulating water pipes 9 are arranged on the liquid storage pipe 8, so that the interior of the battery storage frame 1 can be water-cooled.

[0036] The present invention comprises: 1. a battery storage frame; 2. a sealing cover plate; 3. an annular frame; 4. a column frame; 5. a link plate; 6. a heat conducting plate; 7. a liquid collecting tank; 8. a liquid storage pipe; 9. a circulating water pipe; 10. a water inlet pipe; 11. a drain pipe; 12. a central conduit; 13. a pneumatic rod; 14. a linkage shaft; 15. a connecting rod; 16. a column plate; 17. a connecting rod; 18. a guide ring; 19. a fan; 20. an exhaust pipe; 21. a casting plate; 22. a ventilation column; 23. an electromagnetic slide rail; 24. a guide block; 25. a linkage rod; 26. a filter column core; 27. a plugging Block; 28, sealing plate; 29, nitrogen oxide adsorbent layer; 30, activated carbon adsorption layer; 31, particulate filter layer, all components are universal standard parts or components known to technicians in this field, and their structures and principles can be known by technicians in this field through technical manuals or through conventional experimental methods. The present invention solves the problem that the existing thermal management structure of the battery pack of new energy vehicles cannot quickly adjust the temperature, which reduces the service life of the battery. The present invention combines the above components with each other. The thermal management structure of the power battery pack for new energy vehicles of the present invention uses a battery storage frame to store multiple battery packs, and the sealing plate on the top of the battery is sealed. The bottom of the sealing plate is provided with a ventilation structure, and the air pressure rod can push the entire ventilation structure up and down. The outer wall of the column plate of the ventilation structure is connected with a plurality of connecting rods, and the outer sides of the plurality of connecting rods are connected with guide rings, and the guide rings are provided with a plurality of fans, and the output end of the fan is connected with an exhaust pipe, and the bottom end of the central duct is connected with a casting plate, which is a heat-conducting metal, and the bottom end of the casting plate can be plugged with the link plate, and the entire ventilation structure can contact the bottom of the battery storage frame and exhaust air through the exhaust pipe. The pipe discharges cold air for blowing, and a ventilation column is arranged on the top of the sealing cover plate. The electromagnetic slide rail controls the lifting and lowering of the guide block and the filter column core and the sealing block inside the guide block, so as to open the sealing plate and discharge the internal hot air. The water cooling structure of the present invention includes a plurality of liquid collecting tanks, a plurality of arc grooves are opened on the outer wall of the battery storage frame, and a liquid storage tube is arranged in the middle of the arc groove. A liquid pump is arranged inside the liquid collecting tank, and the output end of the liquid pump is connected with the liquid storage tube through a drain pipe. A plurality of circulating water pipes are arranged on the liquid storage tube, so as to cool the interior of the battery storage frame by water.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A thermal management structure for a power battery pack for a new energy vehicle, comprising a battery storage frame (1), a cover plate (2) arranged on the top of the battery storage frame (1), a ventilation structure arranged on the bottom of the cover plate (2) and a plurality of water cooling structures arranged on the outer wall of the battery storage frame (1), characterized in that: The inner wall of the battery storage frame (1) is provided with an annular frame (3), and a plurality of slots are equidistantly provided on the annular frame (3); the inner wall of the annular frame (3) is provided with a heat-conducting column frame (4); a linking disk (5) is provided in the middle of the interior of the battery storage frame (1); a plurality of heat-conducting plates (6) are equidistantly provided on the outer wall of the linking disk (5); the water-cooling structure comprises a plurality of liquid collecting tanks (7); a plurality of arc-shaped grooves are provided on the outer wall of the battery storage frame (1), and a liquid storage pipe (8) is provided in the middle of the arc-shaped groove; a liquid pump is provided inside the liquid collecting tank (7); the output end of the liquid pump is connected to the liquid storage pipe (8) through a drainage pipe (11); and a plurality of circulating water pipes (9) are provided on the liquid storage pipe (8).

2. The thermal management structure of a power battery pack for a new energy vehicle according to claim 1, characterized in that: The top of the liquid collecting tank (7) is connected to a water inlet pipe (10), and the bottom of the liquid collecting tank (7) is provided with a drainage pipe (11).

3. The thermal management structure of a power battery pack for a new energy vehicle according to claim 2, characterized in that: A central conduit (12) is arranged at the bottom center of the cover plate (2), a plurality of pneumatic rods (13) are arranged equidistantly on the outside of the central conduit (12), a linkage shaft (14) is sleeved on the central conduit, a plurality of L-shaped connecting rods (15) are connected to the outside of the linkage shaft (14), the output end of the pneumatic rod (13) is connected to the connecting rod (15), and a ventilation structure is connected to the bottom of the linkage shaft (14).

4. The thermal management structure of a power battery pack for a new energy vehicle according to claim 3, characterized in that: The ventilation structure comprises a column plate (16), the outer wall of the column plate (16) is connected to a plurality of connecting rods (17), the outer sides of the plurality of connecting rods (17) are connected to guide rings (18), a plurality of fans (19) are arranged on the guide rings (18), and the output end of the fan (19) is connected to an exhaust pipe (20).

5. The thermal management structure of a power battery pack for a new energy vehicle according to claim 4, characterized in that: The bottom end of the central conduit is connected to a casting plate (21), the casting plate (21) is a heat-conducting metal, and the bottom end of the casting plate (21) can be plugged into the link plate (5).

6. The thermal management structure of a power battery pack for a new energy vehicle according to claim 1, characterized in that: A ventilation column (22) is arranged at the top of the cover plate (2), an electromagnetic slide rail (23) is arranged on the inner wall of the ventilation column (22), and a guide block (24) is slidably connected to the electromagnetic slide rail (23), the inner side of the guide block (24) is connected to a linkage rod (25), the inner side of the linkage rod (25) is connected to a filter column core (26), the top of the filter column core (26) is connected to a funnel-shaped blocking block (27), and the top of the blocking block (27) is connected to a sealing plate (28).

7. A thermal management structure of a power battery pack for a new energy vehicle according to claim 6, characterized in that: The filter column core (26) comprises a nitrogen oxide adsorbent layer (29), an activated carbon adsorption layer (30), and a particulate matter filter layer (31); the bottom of the nitrogen oxide adsorbent layer (29) is connected to the activated carbon adsorption layer (30); the bottom of the activated carbon adsorption layer (30) is connected to the particulate matter filter layer (31); the nitrogen oxide adsorbent layer (29) comprises titanium oxide, copper oxide, and zinc oxide; and the particulate matter filter layer (31) comprises glass fiber, polyester fiber, and polypropylene.

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