A heat dissipation structure for a power battery pack

Abstract

The present invention belongs to the technical field of battery packs, and is particularly a heat dissipation structure of a power battery pack, comprising a lower protective component, an upper protective component, a battery assembly, a water cooling box, a water cooling coil, two U-shaped blocks, two rollers and a sealing plate, wherein the battery assembly is located between the lower protective component and the upper protective component, wherein the lower protective component is located below the battery assembly, and the upper protective component is located above the battery assembly, wherein the lower protective component comprises a lower protective cover, two sliding cavities and two sliding holes, wherein the two sliding cavities are both opened on the lower protective cover, and the two sliding holes are respectively opened on the top inner walls of the two sliding cavities, and wherein the upper protective component comprises an upper protective cover, two sliding grooves and a first vent. The present invention is convenient to assemble, has high heat dissipation efficiency, and does not require manual secondary locking of a single battery, thus saving a large amount of installation time and bringing great convenience to people.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and in particular to a heat dissipation structure of a power battery pack. Background Art

[0002] Power batteries are power sources for tools, mostly referring to batteries that power electric vehicles, electric trains, electric bicycles, and golf carts. Power battery packs are composed of multiple batteries arranged in combination to form a battery assembly connected in series. In related technologies, a large amount of heat will accumulate inside the battery during high-current charging and discharging. If the heat is not controlled in time, the temperature of the battery module will rise sharply. In particular, large-capacity battery modules have a higher energy density and higher heat release, which can easily lead to thermal runaway, causing the battery to release gas, smoke, leak, and even cause the battery to burn or explode.

[0003] Most of the existing battery pack cooling is to dissipate heat to the outside by thermal conductivity. This heat dissipation method has poor cooling performance for the inside. When assembling the battery pack, people usually need to consider the protection and installation of the battery pack. Fixing a single battery often requires a complex locking device. In addition, the assembled battery pack is large in size and heavy in weight, and it is troublesome to manually carry and place it. Therefore, a power battery pack heat dissipation structure is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a power battery pack heat dissipation structure.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a power battery pack heat dissipation structure, including a lower protective component, an upper protective component, a battery assembly, a water cooling box, a water cooling coil, two U-shaped blocks and two rollers and a sealing plate, the battery assembly is located between the lower protective component and the upper protective component, the lower protective component is located below the battery assembly, and the upper protective component is located above the battery assembly, the lower protective component includes a lower protective cover, two sliding cavities and two sliding holes, the two sliding cavities are both opened on the lower protective cover, and the two sliding holes are respectively opened on the top inner walls of the two sliding cavities, the upper protective component includes an upper protective cover, two sliding grooves and a first vent, the two sliding grooves are both opened on the top inner wall of the upper protective cover, The first vent is opened on the top inner wall of the upper protective cover, the battery assembly includes a lower mold, a connecting mold and an upper mold, the connecting mold is located between the lower mold and the upper mold, the water cooling box is fixedly installed on the top of the upper mold, the water cooling coil is fixedly installed in the water cooling box, the two U-shaped blocks are fixedly installed on the top of the upper mold, the two U-shaped blocks are respectively located on both sides of the water cooling box, the two rollers are respectively rotatably installed on the two U-shaped blocks, the two slide grooves are respectively matched with the two rollers, the lower protective component and the upper protective component are both provided with mounting openings on the same inner wall, the sealing plate is fixedly installed on the same side of the lower protective component and the upper protective component, and the sealing plate is matched with the mounting opening.

[0006] Preferably, the lower mold assembly includes a lower module, two fixed blocks, two sliding blocks, a first groove, a plurality of first placement grooves, two ventilation grooves, a plurality of ventilation holes, and two ventilation ports. The two fixed blocks are fixedly mounted on the bottom of the lower module, the two sliding blocks are respectively fixedly mounted on the bottom of the two fixed blocks, the two fixed blocks and the two sliding blocks are respectively adapted to the two sliding holes and the two sliding cavities, the first groove is opened on the top of the lower module, a plurality of the first placement grooves are opened on the bottom inner wall of the first groove, the two ventilation grooves are respectively opened on the lower module, a plurality of the ventilation holes are opened on the bottom inner wall of a plurality of the first placement grooves, a plurality of the ventilation holes are connected to the two ventilation grooves, the two ventilation ports are respectively opened on the inner wall on one side of the two ventilation grooves away from each other, and a plurality of first plastic elastic blocks are fixedly mounted on the inner walls of a plurality of the first placement grooves.

[0007] Preferably, the connection module comprises a connection module, a second groove, several second placement grooves, a third groove, several third placement grooves and several rectangular ventilation holes, the second groove is opened at the top of the connection module, several second placement grooves are opened on the bottom inner wall of the second groove, the third groove is opened at the bottom of the connection module, several third placement grooves are opened on the top inner wall of the third groove, several rectangular ventilation holes are respectively opened on the bottom inner walls of several second placement grooves and are connected with several third placement grooves, and second plastic elastic blocks are fixedly installed on the inner walls of several second placement grooves and several third placement grooves.

[0008] Preferably, the upper mold assembly includes an upper module, a fourth groove and several fourth placement grooves, the fourth groove is opened at the bottom of the upper module, several fourth placement grooves are opened on the top inner wall of the fourth groove, and several third plastic elastic blocks are fixedly installed on the inner walls of the several fourth placement grooves.

[0009] Preferably, a plurality of balls are embedded on both of the two sliding blocks.

[0010] Preferably, bolt mounting parts are fixedly mounted on both sides of the lower protection component, the upper protection component, the lower die set, the connecting die set and the upper die set.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: a lower protective assembly is formed by the cooperation of a lower protective cover, a sliding cavity and a sliding hole; an upper protective assembly is formed by the cooperation of an upper protective cover, a sliding groove and a first vent; a battery assembly is formed by the cooperation of a lower module, a connecting module and an upper module; a lower module is formed by the cooperation of a lower module, a fixed block, a slider, a first groove, a first placement groove, a ventilation groove, a ventilation hole and a vent; a connecting module is formed by the cooperation of a connecting module, a second groove, a second placement groove, a third groove, a third placement groove and a rectangular ventilation hole; an upper module is formed by the cooperation of an upper module, a fourth groove and a fourth placement groove; a battery pack with good heat dissipation effect and convenient installation is formed by the cooperation of a water cooling box, a water cooling coil, a U-shaped block, a roller, a sealing plate and the above-mentioned structures.

[0012] The present invention is convenient to assemble and has high heat dissipation efficiency, and does not require manual secondary locking of a single battery, thereby saving a large amount of installation time and bringing great convenience to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the explosion structure of the present invention;

[0014] Figure 2 for Figure 1A schematic diagram of the enlarged structure of part A;

[0015] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part B;

[0016] Figure 4 for Figure 1 A schematic diagram of the enlarged structure of the middle C part;

[0017] Figure 5 It is a schematic diagram of the top view and cross-section structure of the lower mold assembly in the present invention;

[0018] Figure 6 It is a schematic diagram of the top view and cross-section structure of the connection module assembly in the present invention;

[0019] Figure 7 It is a schematic diagram of the top cross-sectional structure of the upper mold assembly in the present invention;

[0020] Figure 8 It is a schematic diagram of the main structure of the present invention.

[0021] In the figure: 1, lower protection assembly; 2, upper protection assembly; 3, battery assembly; 4, water cooling box; 5, water cooling coil; 6, U-shaped block; 7, roller; 8, sealing plate; 101, lower shield; 102, sliding cavity; 103, sliding hole; 201, upper shield; 202, sliding groove; 203, first vent; 301, lower die; 302, connecting die; 303, upper die; 3011, lower module; 3012, fixing block; 3013, lower module; 3014, upper module; 3015, lower module; 3016, upper module; 3017, lower module; 3018, upper module; 3019, lower module; 3020, upper module; 3021, lower module; 3022, upper module; 3023, upper module; 3024, upper module; 3025, upper module; 3026, upper module; 3027, upper module; 3028, upper module; 3029, upper module; 3030, upper module; 3031, lower module; 3032, upper module; 3033, upper module; 3034, upper module; 3035, upper module; 3036, upper module; 3037, upper module; 3038, upper module; 3039, upper module; 3040, upper module; 3041, lower module; 3042, upper module; 3043, upper module; 3044, upper module; 3045, upper module; 3046, upper module; 3047, upper module; 3048, upper module; 3049, upper module; 3050, upper module; 3051, lower module; 3052, upper module; 30 013, slider; 3014, first groove; 3015, first placement groove; 3016, ventilation groove; 3017, ventilation hole; 3018, ventilation port; 3021, connecting module; 3022, second groove; 3023, second placement groove; 3024, third groove; 3025, third placement groove; 3026, rectangular ventilation hole; 3031, upper module; 3032, fourth groove; 3033, fourth placement groove. DETAILED DESCRIPTION

[0022] 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.

[0023] Please refer to Figure 1-8The present invention provides a technical solution: a power battery pack heat dissipation structure, comprising a lower protective component 1, an upper protective component 2, a battery assembly 3, a water cooling box 4, a water cooling coil 5, two U-shaped blocks 6, two rollers 7 and a sealing plate 8, the battery assembly 3 is located between the lower protective component 1 and the upper protective component 2, the lower protective component 1 is located below the battery assembly 3, and the upper protective component 2 is located above the battery assembly 3, the lower protective component 1 comprises a lower protective cover 101, two sliding cavities 102 and two sliding holes 103, the two sliding cavities 102 are both opened on the lower protective cover 101, and the two sliding holes 103 are respectively opened on the top inner walls of the two sliding cavities 102, the upper protective component 2 comprises an upper protective cover 201, two sliding grooves 202 and a first vent 203, the two sliding grooves 202 are both opened on the upper protective cover 201 On the top inner wall, the first vent 203 is opened on the top inner wall of the upper shield 201, the battery assembly 3 includes a lower die 301, a connection die 302 and an upper die 303, the connection die 302 is located between the lower die 301 and the upper die 303, the water cooling box 4 is fixedly installed on the top of the upper die 303, the water cooling coil 5 is fixedly installed in the water cooling box 4, the two U-shaped blocks 6 are fixedly installed on the top of the upper die 303, the two U-shaped blocks 6 are respectively located on both sides of the water cooling box 4, the two rollers 7 are respectively rotatably installed on the two U-shaped blocks 6, the two slide grooves 202 are respectively adapted to the two rollers 7, the lower protection component 1 and the upper protection component 2 are provided with installation openings on the same inner wall, the sealing plate 8 is fixedly installed on the same side of the lower protection component 1 and the upper protection component 2, and the sealing plate 8 is adapted to the installation opening;

[0024] The lower mold assembly 301 includes a lower module 3011, two fixed blocks 3012, two sliders 3013, a first groove 3014, a plurality of first placement grooves 3015, two ventilation grooves 3016, a plurality of ventilation holes 3017, and two vents 3018. The two fixed blocks 3012 are fixedly mounted on the bottom of the lower module 3011, and the two sliders 3013 are respectively fixedly mounted on the bottom of the two fixed blocks 3012. The two fixed blocks 3012 and the two sliders 3013 are respectively adapted to the two slide holes 103 and the two slide cavities 102. The first groove 3014 is provided on the top of the lower module 3011, and the plurality of first placement grooves 3015 are provided on the bottom inner wall of the first groove 3014. The two ventilation grooves 3016 are provided on the bottom inner wall of the two ventilation holes 3017. The wind slots 3016 are respectively provided on the lower module 3011, and the plurality of ventilation holes 3017 are provided on the bottom inner walls of the plurality of first placement slots 3015. The plurality of ventilation holes 3017 are connected to the two ventilation slots 3016. The two vents 3018 are respectively provided on the inner walls of the two ventilation slots 3016 away from each other. The inner walls of the plurality of first placement slots 3015 are fixedly provided with a plurality of first plastic elastic blocks. The connection module 302 includes a connection module 3021, a second groove 3022, a plurality of second placement slots 3023, a third groove 3024, a plurality of third placement slots 3025 and a plurality of rectangular ventilation holes 3026. The second groove 3022 is provided on the inner wall of the connection module 3021. At the top, a plurality of second placement grooves 3023 are all arranged on the bottom inner wall of the second groove 3022, a third groove 3024 is arranged at the bottom of the connection module 3021, a plurality of third placement grooves 3025 are all arranged on the top inner wall of the third groove 3024, a plurality of rectangular ventilation holes 3026 are respectively arranged on the bottom inner walls of a plurality of second placement grooves 3023 and are connected with a plurality of third placement grooves 3025, a second plastic elastic block is fixedly installed on the inner walls of a plurality of second placement grooves 3023 and a plurality of third placement grooves 3025, an upper mold assembly 303 includes an upper module 3031, a fourth groove 3032 and a plurality of fourth placement grooves 3033, the fourth groove 3032 is arranged on the upper module 303 1, a plurality of fourth placement grooves 3033 are provided on the top inner wall of the fourth groove 3032, a plurality of third plastic elastic blocks are fixedly installed on the inner walls of the plurality of fourth placement grooves 3033, a plurality of ball bearings are inlaid on the two sliders 3013, a bolt mounting piece is fixedly installed on both sides of the lower protection component 1, the upper protection component 2, the lower die set 301, the connecting die set 302 and the upper die set 303, and the lower protection component 1 is combined into the lower protection component 1 through the cooperation of the lower guard 101, the sliding cavity 102 and the sliding hole 103, and the upper protection component 2 is combined into the upper protection component 2 through the cooperation of the lower die set 301, the connecting die set 302 and the upper die set 303,The battery assembly 3 is assembled, and the lower module 3011, the fixing block 3012, the slider 3013, the first groove 3014, the first placement groove 3015, the ventilation groove 3016, the ventilation hole 3017 and the ventilation port 3018 are matched to form the lower assembly module 301; the connecting module 3021, the second groove 3022, the second placement groove 3023, the third groove 3024, the third placement groove 3025 and the rectangular ventilation hole 3026 are matched to form the connecting assembly module 302; the upper module 3031, the fourth groove 3032 and the fourth placement groove 3033 are matched to form the upper assembly module 303; the water cooling box 4, the water cooling coil 5, the U-shaped block 6, the roller 7, the sealing plate 8 and the above structure are matched to form a battery pack with good heat dissipation effect and convenient installation. The present invention is convenient to assemble and has high heat dissipation efficiency, and does not require manual secondary locking of a single battery, which saves a lot of installation time and brings great convenience to people. ,

[0025] In the embodiment: first, take out the lower mold assembly 301, take out a single battery, and place the batteries in the first placement grooves 3015 in the first groove 3014 in turn. When the battery enters the first placement groove 3015, the first placement groove 3015 inner wall plastic elastic blocks elastically clamp the battery. When the first placement grooves 3015 in the lower mold assembly 301 are completely filled, pick up the connecting mold assembly 302, align the third placement grooves 3025 on the connecting mold assembly 302 with the batteries, and when the batteries enter the third placement grooves 3025, the second plastic elastic blocks lock the batteries. At this time, the lower mold assembly 301 and the connecting mold assembly 302 are fixed by bolts. At this time, the second placement groove 3023 at the top of the connecting mold assembly 302 is again fixed in accordance with the second placement groove 3023. Place the batteries again until they are completely filled. At this time, take out the upper mold 303, so that the several fourth placement grooves 3033 on the upper mold 303 are inserted into the corresponding batteries. At this time, fix the upper mold 303 and the connecting mold 302. Then, lift the battery assembly 3, align the slider 3013 with the slide cavity 102 and slide it into the lower protective component 1. At this time, close the upper protective component 2 and align the roller 7 with the slide groove 202. This sliding method makes it more convenient to replace the battery pack when it is inconvenient to disassemble the whole. Finally, fix the lower protective component 1 and the upper protective component 2 with bolts, and then fix the upper sealing plate 8. When dissipating heat, water cooling is carried out through the water cooling box 4 and the water cooling coil 5. At the same time, the interior is connected through the rectangular ventilation holes 3026, the ventilation grooves 3016, the ventilation holes 3017 and the ventilation ports 3018 to facilitate the circulation of air.

[0026] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power battery pack heat dissipation structure, characterized in that: The invention comprises a lower protection component (1), an upper protection component (2), a battery assembly (3), a water cooling box (4), a water cooling coil (5), two U-shaped blocks (6), two rollers (7) and a sealing plate (8), wherein the battery assembly (3) is located between the lower protection component (1) and the upper protection component (2), the lower protection component (1) is located below the battery assembly (3), the upper protection component (2) is located above the battery assembly (3), and the lower protection component (1) comprises a lower shield (10 1), two sliding cavities (102) and two sliding holes (103), the two sliding cavities (102) are both opened on the lower shield (101), the two sliding holes (103) are respectively opened on the top inner walls of the two sliding cavities (102), the upper protection component (2) comprises an upper shield (201), two sliding grooves (202) and a first vent (203), the two sliding grooves (202) are both opened on the top inner wall of the upper shield (201), the first vent (203) is opened On the top inner wall of the upper shield (201), the battery assembly (3) comprises a lower assembly mold (301), a connecting assembly mold (302) and an upper assembly mold (303), the connecting assembly mold (302) is located between the lower assembly mold (301) and the upper assembly mold (303), the water cooling box (4) is fixedly installed on the top of the upper assembly mold (303), the water cooling coil (5) is fixedly installed in the water cooling box (4), and the two U-shaped blocks (6) are fixedly installed on the top of the upper assembly mold (303). The two U-shaped blocks (6) are respectively located on both sides of the water cooling box (4), the two rollers (7) are respectively rotatably mounted on the two U-shaped blocks (6), the two slide grooves (202) are respectively matched with the two rollers (7), the lower protection component (1) and the upper protection component (2) are provided with installation openings on the same inner wall, the sealing plate (8) is fixedly mounted on the same side of the lower protection component (1) and the upper protection component (2), and the sealing plate (8) is matched with the installation opening; The lower mold assembly (301) comprises a lower module (3011), two fixed blocks (3012), two sliding blocks (3013), a first groove (3014), a plurality of first placement grooves (3015), two ventilation grooves (3016), a plurality of ventilation holes (3017), and two ventilation ports (3018). The two fixed blocks (3012) are fixedly mounted on the bottom of the lower module (3011). The two sliding blocks (3013) are respectively fixedly mounted on the bottom of the two fixed blocks (3012). The two fixed blocks (3012) and the two sliding blocks (3013) are respectively matched with the two sliding holes (103) and the two sliding cavities (102). The first groove (3014) is provided with a plurality of first placement grooves (3015), two ventilation grooves (3016), a plurality of ventilation holes (3017), and two ventilation ports (3018). 14) is opened on the top of the lower module (3011), a plurality of the first placement grooves (3015) are opened on the bottom inner wall of the first groove (3014), two ventilation grooves (3016) are opened on the lower module (3011), a plurality of ventilation holes (3017) are opened on the bottom inner wall of a plurality of the first placement grooves (3015), a plurality of the ventilation holes (3017) are connected to the two ventilation grooves (3016), two ventilation ports (3018) are opened on the inner wall of the two ventilation grooves (3016) away from each other, and a plurality of first plastic elastic blocks are fixedly installed on the inner walls of a plurality of the first placement grooves (3015); The connection module (302) comprises a connection module (3021), a second groove (3022), a plurality of second placement grooves (3023), a third groove (3024), a plurality of third placement grooves (3025) and a plurality of rectangular ventilation holes (3026), wherein the second groove (3022) is provided on the top of the connection module (3021), the plurality of second placement grooves (3023) are provided on the bottom inner wall of the second groove (3022), and the third groove (3024) is provided on the bottom inner wall of the second groove (3022). The third placement grooves (3025) are provided at the bottom of the connection module (3021), and are all provided on the top inner wall of the third groove (3024). The rectangular ventilation holes (3026) are respectively provided on the bottom inner walls of the second placement grooves (3023) and are connected to the third placement grooves (3025). The second plastic elastic blocks are fixedly installed on the inner walls of the second placement grooves (3023) and the third placement grooves (3025). The upper mold assembly (303) comprises an upper module (3031), a fourth groove (3032) and a plurality of fourth placement grooves (3033); the fourth groove (3032) is arranged at the bottom of the upper module (3031); the plurality of fourth placement grooves (3033) are arranged on the top inner wall of the fourth groove (3032); and a plurality of third plastic elastic blocks are fixedly mounted on the inner walls of the plurality of fourth placement grooves (3033).

2. A power battery pack heat dissipation structure according to claim 1, characterized in that: A plurality of balls are inlaid on the two sliding blocks (3013).

3. A power battery pack heat dissipation structure according to claim 1, characterized in that: Bolt mounting parts are fixedly mounted on both sides of the lower protection component (1), the upper protection component (2), the lower die set (301), the connecting die set (302) and the upper die set (303).

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