Energy storage device with BCU protection structure

Abstract

The invention discloses an energy storage device with a BCU protection structure, and relates to the technical field of energy storage devices. The device comprises a storage box, a BCU controller and a lithium battery pack are arranged in the storage box, two limiting assemblies are arranged on each of two first opposite inner walls of the storage box, U-shaped supporting frames are fixed to each of two second opposite inner walls of the storage box, and first baffles are elastically matched with one sides of the U-shaped supporting frames. The position of a second baffle plate is adjusted through a threaded rod, so that the second baffle plate can clamp and limit the side part of a BCU controller or a lithium battery pack, and the lithium battery pack in use is conveniently buffered through the sliding fit of a fixed plate in a first sliding column and the action of a first spring; and the possibility that the lithium battery pack collides with the inner wall of the storage box to be damaged is reduced, the cooling fins are conveniently assisted to dissipate heat through the effect of the cooling fan, then the heat dissipation efficiency of the BCU controller and the lithium battery pack is improved, and the service life of the BCU controller and the service life of the lithium battery pack are prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage devices, and in particular relates to an energy storage device with a BCU protection structure. Background Art

[0002] Typical devices for storing electrical energy include batteries and capacitors. Supercapacitors (also known as ultracapacitors) are energy storage devices with intermediate characteristics between electrolytic capacitors and secondary batteries. Because supercapacitors offer high efficiency and a semi-permanent lifespan, they are considered the next generation of energy storage devices that can be used alongside or replace secondary batteries.

[0003] The patent application with publication number CN114388934A discloses a support structure for a battery energy storage device and a battery energy storage device. The support structure is used to install a battery module, and a cavity is provided in the support structure, and the cavity is filled with a phase change material. The support structure has a cavity, and the cavity is filled with a phase change material. Through the phase change material filled in the cavity, heat can be absorbed from the battery module when the temperature of the battery module is high, and heat can be released to the battery module when the temperature of the battery module is low, thereby maintaining the temperature of the battery module and ensuring the working performance and safety of the battery module. Compared with the prior art, the support structure of the battery energy storage device provided by the present invention can more uniformly control the temperature of each battery module in the battery energy storage device, provide more space for installing more battery modules, consume less energy, and make the temperature change range of the battery module smaller, and the temperature of the battery module more stable.

[0004] However, the energy storage device disclosed in this application is not convenient for dissipating heat during use. At the same time, the components within the energy storage device are prone to collision and damage during use, which affects the service life of the energy storage device. Summary of the Invention

[0005] The purpose of the present invention is to provide an energy storage device with a BCU protection structure, which solves the technical problem that the existing energy storage device does not have the anti-collision function of the heat dissipation box.

[0006] To solve the above technical problems, the present invention is achieved through the following technical solutions: An energy storage device with a BCU protection structure includes a storage box, a BCU controller and a lithium battery pack are arranged inside the storage box, two limiting assemblies are provided on first two opposing inner walls of the storage box, a U-shaped support frame is fixed to second two opposing inner walls of the storage box, and a first baffle is elastically fitted on one side of the U-shaped support frame; The limiting assembly includes a threaded rod threadably engaged with the storage box, a fixed plate provided at one end of the threaded rod, two first sliding posts extending through and slidingly engaged with the fixed plate, a second baffle fixed at one end of the two first sliding posts, and first springs provided around the periphery of each of the first sliding posts, the first springs being located between the fixed plate and the second baffle; The upper part of the storage box is matched with a box cover, and the lower side of the box cover is elastically matched with a heat dissipation mechanism.

[0007] Optionally, a plurality of air inlets are provided on the first opposite sides of the storage box, and the second baffle is located on one side of the air inlet.

[0008] Optionally, a screw head is fixed at one end of the threaded rod and a bearing is provided at the other end. The bearing is installed on one side of the fixed plate, and the threaded rod is installed in the shaft hole of the bearing.

[0009] Optionally, two second sliding columns and two second springs are provided between the first baffle and the U-shaped support frame, the second sliding columns pass through and slide in the U-shaped support frame, and the second springs are located between the U-shaped support frame and the first baffle.

[0010] Optionally, a plurality of limiting plates are correspondingly provided on the sides of the storage box and the box cover, and a bolt is provided between two corresponding limiting plates.

[0011] Optionally, a plurality of exhaust ports corresponding to the heat dissipation mechanisms are provided on the upper side of the box cover.

[0012] Optionally, the heat dissipation mechanism includes two crossbeams provided below the box cover, and a plurality of heat dissipation fans are provided between the two crossbeams.

[0013] Optionally, a heat sink is fixed to the lower side of the crossbeam, and a plurality of heat sinks are provided between the heat sink and the heat sink fan.

[0014] Optionally, two spring slide bars are provided between the box cover and the crossbeam, and the two spring slide bars are respectively located near the ends of the crossbeam.

[0015] Optionally, four bases are provided on the lower side of the storage box, and the four bases are respectively located at the four corners of the lower side of the storage box.

[0016] The embodiments of the present invention have the following beneficial effects: One embodiment of the present invention facilitates lifting one side of the lithium battery pack through the action of the first baffle, facilitates limiting one side of the lithium battery pack through the action of the second spring, and can buffer one side of the lithium battery pack at the same time, facilitates driving the threaded rod to rotate through the action of the screw head, and thus facilitates adjusting the position of the second baffle, so that the second baffle can clamp and limit the side of the BCU controller or the lithium battery pack, and facilitates buffering the lithium battery pack in use through the sliding engagement of the fixing plate in the first slide column and the action of the first spring, reducing the possibility of the lithium battery pack colliding with the inner wall of the storage box and causing damage, facilitates assembling the storage box and the box cover together through the action of the limiting plate, and facilitates providing elastic support for the heat dissipation plate through the action of the spring slide rod. force, so that the bottom of the heat sink can contact the upper surface of the BCU controller and the lithium battery pack, and the heat generated by the BCU controller and the lithium battery pack can be conveniently conducted to the heat sink through the action of the heat sink, and the heat dissipation operation of the conducted heat can be conveniently performed through the action of the heat dissipation fan, thereby improving the heat dissipation efficiency of the BCU controller and the lithium battery pack, reducing the possibility of excessive heat of the BCU controller and the lithium battery pack during use, affecting normal use, and extending the service life of the BCU controller and the lithium battery pack. The air inlet facilitates the intake of air into the interior of the storage box when the heat dissipation fan is working, and the exhaust port facilitates the discharge of hot air in the storage box when the heat dissipation fan is working.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A bottom-view three-dimensional structural diagram of an embodiment of the present invention; Figure 2 A schematic top view of the three-dimensional structure of an embodiment of the present invention; Figure 3 A schematic diagram of the three-dimensional structure of a heat dissipation mechanism according to an embodiment of the present invention; Figure 4 Schematic diagram of the three-dimensional structure of a limiting component according to an embodiment of the present invention.

[0020] The above drawings include the following reference numerals: Storage box 1, air inlet 2, screw head 3, limit plate 4, box cover 5, exhaust port 6, spring slide bar 7, crossbeam 8, cooling fan 9, heat sink 10, heat sink 11, BCU controller 12, lithium battery pack 13, threaded rod 14, bearing 15, fixing plate 16, second baffle 17, first slide column 18, first spring 19, U-shaped support frame 20, second slide column 21, first baffle 22, second spring 23. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention, its application, or use.

[0022] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0023] See also Figure 1-4 As shown, in this embodiment, an energy storage device with a BCU protection structure is provided, including a storage box 1, wherein a BCU controller 12 and a lithium battery pack 13 are provided inside the storage box 1. Specifically, a wire is electrically connected between the BCU controller 12 and the lithium battery pack 13, and a wire is electrically connected between the BCU controller 12 and the outside. Two limiting assemblies are provided on the first two opposing inner walls of the storage box 1, and a U-shaped support frame 20 is fixed to the second two opposing inner walls of the storage box 1. A first baffle 22 is elastically fitted on one side of the U-shaped support frame 20. The limiting assembly includes a threaded rod 14 threadedly engaged with the storage box 1, a fixed plate 16 is provided at one end of the threaded rod 14, two first slide posts 18 are inserted through and slidably engaged with the fixed plate 16, a second baffle 17 is fixed to one end of the two first slide posts 18, and a first spring 19 is provided on the circumference of each of the first slide posts 18, and the first spring 19 is located between the fixed plate 16 and the second baffle 17; The top of the storage box 1 is fitted with a box cover 5 , and the bottom of the box cover 5 is elastically fitted with a heat dissipation mechanism.

[0024] The application of one aspect of this embodiment is as follows: during the assembly of the energy storage device, the BCU controller 12 is first fixed to the bottom of the inner wall of the storage box 1, and the lithium battery pack 13 is placed on one side of the second spring 23 in the storage box 1. Then, the screw head 3 is used to drive the threaded rod 14 to rotate, thereby facilitating the adjustment of the position of the second baffle 17 so that the second baffle 17 can clamp the sides of the BCU controller 12 and the lithium battery pack 13. Then, the limiting plate 4 on the side of the box cover 5 is placed together with the limiting plate 4 on the side of the storage box 1, and then the storage box 1 and the box cover 5 are combined together by bolts. In the process of combining the storage box 1 and the box cover 5, the heat dissipation plate 1 0 will contact the upper surface of the BCU controller 12 and the lithium battery pack 13, and at the same time the spring slide bar 7 will contract inward, so that the heat sink 10 is tightly fitted with the BCU controller 12 and the lithium battery pack 13. Then, during the use of the energy storage device, the heat generated by the BCU controller 12 and the lithium battery pack 13 during operation will be conducted to the heat sink 11 through the heat sink 10, and then the heat sink 11 will initially dissipate the received heat, and finally the heat dissipated by the heat sink 11 will be discharged through the heat dissipation fan 9. During the operation of the heat dissipation fan 9, the gas enters the storage box 1 from the air inlet 2, and the gas in the storage box 1 is discharged from the exhaust port 6. It should be noted that all electrical equipment involved in this application can be powered by batteries or external power supplies.

[0025] The first baffle 22 is used to lift one side of the lithium battery pack 13, and the second spring 23 is used to limit one side of the lithium battery pack 13, and at the same time, one side of the lithium battery pack 13 can be buffered. The screw head 3 is used to drive the threaded rod 14 to rotate, and then the position of the second baffle 17 is adjusted, so that the second baffle 17 can clamp and limit the side of the BCU controller 12 or the lithium battery pack 13. The fixing plate 16 is slidably fitted in the first slide column 18 and the first spring 19 is used to buffer the lithium battery pack 13 in use, reducing the possibility of the lithium battery pack 13 colliding with the inner wall of the storage box 1 and causing damage. The limiting plate 4 is used to facilitate the assembly of the storage box 1 and the box cover 5. The spring slide rod 7 is used to provide elastic supporting force to the heat sink 10, so that the bottom of the heat sink 10 can be aligned with the BCU controller 12 is in contact with the upper surface of the lithium battery pack 13. The heat generated by the BCU controller 12 and the lithium battery pack 13 is conveniently conducted to the heat sink 11 through the action of the heat sink 10. The heat dissipation operation of the conducted heat is conveniently performed through the action of the heat sink 11. The heat dissipation operation of the conducted heat is conveniently performed through the action of the heat dissipation fan 9. The heat sink 11 is conveniently assisted to dissipate heat through the action of the heat dissipation fan 9, thereby improving the heat dissipation efficiency of the BCU controller 12 and the lithium battery pack 13, reducing the possibility of excessive heat in the use of the BCU controller 12 and the lithium battery pack 13, affecting normal use, and extending the service life of the BCU controller 12 and the lithium battery pack 13. The air inlet 2 is convenient for air to be introduced into the interior of the storage box 1 during the operation of the heat dissipation fan 9. The exhaust port 6 is convenient for the hot air in the storage box 1 to be discharged during the operation of the heat dissipation fan 9. The use process of the lithium battery pack 13 is conveniently controlled through the action of the BCU controller 12.

[0026] See also Figure 1 and 2 As shown, the first opposite sides of the storage box 1 of this embodiment are each provided with a plurality of air inlets 2, and the second baffle 17 is located on one side of the air inlet 2. The air inlet 2 facilitates the intake of air into the interior of the storage box 1 during the heat dissipation of the BCU controller 12 and the lithium battery pack 13.

[0027] See also Figure 4 As shown, a screw head 3 is fixed at one end of the threaded rod 14 of this embodiment, and a bearing 15 is provided at the other end. The bearing 15 is installed on one side of the fixed plate 16, and the threaded rod 14 is installed in the axial hole of the bearing 15. The screw head 3 is used to conveniently drive the threaded rod 14 to rotate. The threaded rod 14 is threadedly engaged in the storage box 1 to facilitate adjustment of the position of the second baffle 17 during the rotation of the screw head 3. The threaded rod 14 is rotated on one side of the fixed plate 16 by the action of the bearing 15.

[0028] See also Figure 4As shown, two second slide posts 21 and two second springs 23 are provided between the first baffle 22 and the U-shaped support frame 20 of this embodiment. The second slide post 21 passes through and slides in the U-shaped support frame 20, and the second spring 23 is located between the U-shaped support frame 20 and the first baffle 22. The first baffle 22 is conveniently buffered by the second slide post 21 sliding in the U-shaped support frame 20 and cooperating with the second spring 23.

[0029] See also Figure 1 and 2 As shown, the sides of the storage box 1 and the box cover 5 of this embodiment are correspondingly provided with multiple limit plates 4, and bolts are provided between the corresponding two limit plates 4. The limit plates 4 facilitate the box cover 5 to combine the storage box 1 and the box cover 5, and the bolts facilitate the storage box 1 and the box cover 5 to be combined together.

[0030] See also Figure 1-3 As shown, the upper side of the box cover 5 of this embodiment is provided with multiple exhaust ports 6 corresponding to the heat dissipation mechanism. The heat dissipation mechanism includes two beams 8 arranged below the box cover 5, and multiple heat dissipation fans 9 are arranged between the two beams 8. A heat dissipation plate 10 is also fixed to the lower side of the beam 8. Multiple heat dissipation fins 11 are arranged between the heat dissipation plate 10 and the heat dissipation fans 9. Two spring slides 7 are provided between the box cover 5 and the beam 8, and the two spring slides 7 are respectively located near the ends of the beam 8. The heat dissipation plate 10 is used to facilitate the conduction of heat generated by the BCU controller 12 and the lithium battery pack 13. The heat dissipation fins 11 are used to facilitate the heat dissipation operation of the heat dissipation plate 10. The heat dissipation speed of the heat dissipation fins 11 is accelerated by the heat dissipation fan 9, and the heat dissipation efficiency of the heat dissipation fins 11 is improved. The spring slides 7 are used to facilitate the buffering of the beam 8, thereby facilitating the contact between the bottom of the heat dissipation plate 10 and the upper surface of the BCU controller 12 and the lithium battery pack 13.

[0031] See also Figure 1 and 2 As shown, the storage box 1 of this embodiment is provided with four bases on the lower side, and the four bases are respectively located at the four corners of the lower side of the storage box 1. The bases facilitate the fixing of the storage box 1 and improve the stability of the storage box 1 during use.

[0032] The spring slide bar 7 comprises a cylinder and a rod. The rod is slidably fitted in the cylinder, and a spring is installed between the rod and the bottom of the cylinder.

[0033] The above-mentioned embodiments can be combined with each other.

[0034] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are only used to distinguish various features and have no actual order or directional meaning, and this application is not limited to this.

[0035] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An energy storage device with a BCU protection structure, characterized in that: include: A storage box (1), wherein a BCU controller (12) and a lithium battery pack (13) are provided inside the storage box (1), two first opposing inner walls of the storage box (1) are provided with two limit assemblies, and two second opposing inner walls of the storage box (1) are fixed with U-shaped support frames (20), and one side of the U-shaped support frame (20) is elastically fitted with a first baffle (22); The limiting assembly includes a threaded rod (14) threadedly engaged with the storage box (1), one end of the threaded rod (14) is provided with a fixed plate (16), two first sliding posts (18) are passed through and slidably engaged with the fixed plate (16), one end of the two first sliding posts (18) is fixed with a second baffle (17), and a first spring (19) is provided on the circumference of each of the first sliding posts (18), and the first spring (19) is located between the fixed plate (16) and the second baffle (17); The upper portion of the storage box (1) is fitted with a box cover (5), and the lower side of the box cover (5) is elastically fitted with a heat dissipation mechanism.

2. The energy storage device with a BCU protection structure according to claim 1, characterized in that: A plurality of air inlets (2) are provided on the first opposite sides of the storage box (1), and the second baffle (17) is located on one side of the air inlet (2).

3. The energy storage device with a BCU protection structure according to claim 1, characterized in that: A screw head (3) is fixed at one end of the threaded rod (14), and a bearing (15) is provided at the other end. The bearing (15) is mounted on one side of the fixing plate (16), and the threaded rod (14) is mounted in the shaft hole of the bearing (15).

4. The energy storage device with a BCU protection structure according to claim 1, characterized in that: Two second slide posts (21) and two second springs (23) are provided between the first baffle (22) and the U-shaped support frame (20). The second slide posts (21) pass through and slide in the U-shaped support frame (20), and the second springs (23) are located between the U-shaped support frame (20) and the first baffle (22).

5. The energy storage device with a BCU protection structure according to claim 1, characterized in that: A plurality of limiting plates (4) are correspondingly provided on the side portions of the storage box (1) and the box cover (5), and a bolt is provided between two corresponding limiting plates (4).

6. The energy storage device with a BCU protection structure according to claim 5, characterized in that: A plurality of exhaust ports (6) corresponding to the heat dissipation mechanisms are provided on the upper side of the box cover (5).

7. The energy storage device with a BCU protection structure according to claim 6, characterized in that: The heat dissipation mechanism comprises two cross beams (8) arranged below the box cover (5), and a plurality of heat dissipation fans (9) are arranged between the two cross beams (8).

8. The energy storage device with a BCU protection structure according to claim 7, characterized in that: A heat dissipation plate (10) is also fixed to the lower side of the crossbeam (8), and a plurality of heat dissipation fins (11) are provided between the heat dissipation plate (10) and the heat dissipation fan (9).

9. The energy storage device with a BCU protection structure according to claim 8, characterized in that: Two spring slide bars (7) are provided between the box cover (5) and the crossbeam (8), and the two spring slide bars (7) are respectively located near the ends of the crossbeam (8).

10. The energy storage device with a BCU protection structure according to claim 1, characterized in that: Four bases are provided on the lower side of the storage box (1), and the four bases are respectively located at the four corners of the lower side of the storage box (1).

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