Shockproof buffering and supporting device for energy storage battery pack

Abstract

The invention relates to the technical field of battery packs, in particular to an energy storage battery pack shockproof buffer supporting device which comprises a protection device, a cooling mechanism is arranged on the outer side of the protection device, the cooling mechanism comprises two cooling plates fixed to the two sides of the protection device, and the battery pack is wrapped in the protection device. A protective cover is movably arranged at the top of the battery pack, friction surfaces are arranged on the two sides of the battery pack, and sealing plates are fixed to the two ends of the protective device. And meanwhile, heat energy generated by friction is transferred through the cooling plate and a circulating pipe in the cooling plate, so that the influence of vibration of the battery pack during vehicle running is reduced, the battery pack is protected during vehicle running, and the situation that the battery pack shakes in the vehicle and the internal structure of the battery pack is damaged is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery packs, in particular to a shock-absorbing and buffering support device for an energy storage battery pack. BACKGROUND

[0002] A battery pack is generally an energy storage device in which a plurality of battery modules are connected in series or in parallel to obtain a larger voltage or a larger capacity, and is widely used in the fields of electric vehicles, electric bicycles, electronic devices and the like. Differences always exist between battery monomers, for example, the differences in capacity will never disappear but gradually worsen. The same current flows through the battery pack, and relatively, the battery with a large capacity is always in a state of shallow charging and discharging at a small current, tends to slow capacity attenuation and prolongs the service life, while the battery with a small capacity is always in a state of overcharging and discharging at a large current, tends to accelerate capacity attenuation and shortens the service life, and the performance parameter difference between the two becomes larger and larger, forming a positive feedback characteristic, the small capacity battery fails in advance, and the service life of the battery pack is shortened. During vehicle driving, the traditional battery pack fixing mode is generally overall rigid connection, but the battery pack connected as a whole is obviously subjected to stress concentration when responding to road impact, is prone to structural fatigue and loosening of connecting parts, and thus causes deformation of the battery cell or internal short circuit, seriously affecting the service life and safety performance of the battery. SUMMARY

[0003] The application aims to provide a shock-absorbing and buffering support device for an energy storage battery pack, which buffers slight vibration by friction between the friction surface on the battery pack and the protection device, converts the vibration energy into heat energy through friction, and transfers the heat energy generated by friction through the cooling plate and the circulating pipe inside the cooling plate, so as to reduce the influence of vibration of the battery pack during vehicle driving, and further protect the battery pack during vehicle driving, avoiding shaking of the battery pack in the vehicle and damage to the internal structure of the battery pack.

[0004] To achieve the above-mentioned purpose, the application provides the following technical scheme: a shock-absorbing and buffering support device for an energy storage battery pack, comprising a protection device, a cooling mechanism is arranged outside the protection device; The cooling mechanism comprises two groups of cooling plates fixed on both sides of the protection device, the protection device is wrapped with a battery pack, a protection cover is movably arranged on the top of the battery pack, friction surfaces are arranged on both sides of the battery pack, sealing plates are fixed at both ends of the protection device, and a protection mechanism is arranged outside the battery pack; The protection mechanism comprises L-shaped plates movably arranged on both sides of the battery pack, second springs are arranged on one side of the L-shaped plates, extrusion plates are fixed on the sealing plates, and a plurality of air supply holes are formed in both sides of the protection device.

[0005] Preferably, the protective device has two sets of movable doors on the top, the protective cover has a handle fixed on the top, the handle passes through the movable doors, and the sealing plate has an insertion interface on one side.

[0006] Preferably, both sets of cooling plates are provided with circulation pipes inside, and both sets of cooling plates have cooling grooves on the side near the protective device, with the cooling grooves penetrating the circulation pipes.

[0007] Preferably, the bottom of the protective cover is connected to multiple sets of connecting posts, and a first spring is sleeved on the outside of the connecting posts. One end of the first spring is connected to the connecting post, and the other side of the connecting post is connected to the battery pack. Multiple sets of grooves are opened inside the battery pack, and one end of the connecting post moves inside the groove.

[0008] Preferably, the extrusion plate has an inclined surface on the side near the protective cover, and the two sides of the protective cover are in contact with the inclined surface on the protective cover.

[0009] Preferably, the battery pack is connected to an L-shaped plate on both sides, and a sealing sleeve is provided on the sealing plate, with one end of the L-shaped plate inserted into the sealing sleeve.

[0010] Preferably, a second spring is connected to one side of the L-shaped plate, and one end of the second spring is fixedly connected to the sealing plate.

[0011] Preferably, one side of each of the multiple sets of air supply holes is connected to the cooling tank, and one side of the air supply hole is connected to the interior of the protective device.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the friction between the friction surfaces on the battery pack and the protective device to buffer minor vibrations, converting the energy of the vibrations into heat energy through friction. Simultaneously, the heat energy generated by friction is transferred through the cooling plate and the circulation pipe inside the cooling plate, thereby reducing the impact of vibration on the battery pack when the vehicle is in motion. This protects the battery pack while the vehicle is in motion, preventing it from shaking inside the vehicle and causing damage to the internal structure of the battery pack.

[0013] This invention utilizes the energy of vibration generated by a vehicle during operation to overcome the friction between the friction surface and the protective device, allowing the battery pack to move within the protective device. The movement of the battery pack drives the protective cover to move, and simultaneously, the protective cover contacts and presses against the inclined surfaces on the pressing plates on both sides, thereby causing the protective cover to press against the connecting post, which in turn presses against the first spring. This causes the protective cover to move towards the battery pack, resulting in a tighter contact between the protective cover and the battery pack. This prevents the battery cells inside the battery pack from shaking and detaching from the battery pack during significant vibrations, thus ensuring the normal operation of the battery pack.

[0014] This invention utilizes the movement of the battery pack within the protective device to drive the L-shaped plates on both sides to move. The movement of the L-shaped plates compresses the second spring, while one end of the L-shaped plate always moves inside the sealing sleeve, ensuring a relatively sealed internal space. Simultaneously, the movement of the L-shaped plates discharges gas from one side of the L-shaped plate into the cooling tank through the air inlet, accelerating the gas flow inside the cooling tank, promoting the cooling plate's cooling effect, and cooling the heat generated by friction and the heat generated by the battery pack's operation. This prevents the battery pack from overheating during prolonged operation, which could affect its lifespan. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the cooling mechanism of the present invention; Figure 3 This is a second schematic diagram of the cooling mechanism of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of section A in the middle; Figure 5 This is one of the structural schematic diagrams of the protective mechanism of the present invention; Figure 6 This is a third schematic diagram of the cooling mechanism of the present invention; Figure 7 This is a second schematic diagram of the protective mechanism of the present invention.

[0016] In the diagram: 1. Protective device; 11. Handle; 12. Movable door; 13. Socket; 2. Cooling mechanism; 21. Circulation pipe; 22. Cooling plate; 23. Protective cover; 24. Connecting column; 25. First spring; 26. Friction surface; 27. Sealing plate; 3. Protective mechanism; 31. Extrusion plate; 32. L-shaped plate; 33. Sealing sleeve; 34. Second spring; 35. Air inlet; 37. Cooling tank. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] Figures 1 to 7 As shown, the present invention provides a shock-absorbing support device for energy storage battery packs, including a protective device 1, and a cooling mechanism 2 is provided on the outside of the protective device 1. The cooling mechanism 2 includes two sets of cooling plates 22 fixed on both sides of the protective device 1. The protective device 1 is filled with a battery pack. A protective cover 23 is movably installed on the top of the battery pack. Friction surfaces 26 are provided on both sides of the battery pack. Sealing plates 27 are fixed at both ends of the protective device 1. A protective mechanism 3 is provided on the outside of the battery pack. The protective mechanism 3 includes an L-shaped plate 32 that moves on both sides of the battery pack. A second spring 34 is provided on one side of the L-shaped plate 32. A compression plate 31 is fixed on the sealing plate 27. Multiple sets of air supply holes 35 are opened on both sides of the protective device 1.

[0019] Before using this device, first open the movable door 12 on the protective device 1, then lift the handle 11 upwards and smoothly insert the battery pack with the protective cover 23 into the protective device 1. After the battery pack is fully in place, close the movable door 12 and install the battery pack in the protective device 1. Then, insert the entire device into the corresponding interface of the electric vehicle through the side plug interface 13 to start power supply.

[0020] After use, lift handle 11 again to move protective cover 23 outward. During the removal process, protective cover 23 will push open movable door 12, allowing the battery pack to be easily removed from protective device 1 for replacement or charging.

[0021] During vehicle operation, the vibrations generated are transmitted to the interior of the protective device 1. At this time, the friction surface 26 on the outer side of the battery pack and the inner wall of the protective device 1 generate relative friction, which can convert the energy of slight vibrations into heat energy, effectively buffering high-frequency small-amplitude vibrations. At the same time, the cooling plate 22 installed on the battery pack and the circulation pipe 21 embedded therein will conduct and dissipate the heat generated by friction in a timely manner, thereby reducing the temperature of the battery pack, reducing the impact of continuous vibration on the internal structure of the battery pack, effectively avoiding damage to internal components of the battery pack caused by frequent shaking during vehicle operation, and extending the battery life.

[0022] When the vehicle passes through a bumpy road and experiences significant vibration, the energy of the vibration will overcome the static friction between the friction surface 26 and the inner wall of the protective device 1, causing the battery pack to undergo a slight displacement inside the device. This displacement will cause the protective cover 23 to move accordingly. The two sides of the protective cover 23 will contact the inclined surface on the extrusion plate 31 and generate pressure. This pressure will push the protective cover 23 towards the main body of the battery pack, thereby compressing the connecting column 24 and the first spring 25. Through this structure, the clamping force between the protective cover 23 and the battery pack is further enhanced, effectively constraining the internal cells of the battery pack and preventing them from loosening or even falling off under strong vibration, thus ensuring the stable operation of the battery pack under harsh working conditions.

[0023] Furthermore, when the battery pack moves inside the protective device 1, it will cause the L-shaped plates 32 connected to both sides to move synchronously. During the movement, the L-shaped plates 32 will compress the second spring 34, and one end of them will always slide inside the sealing sleeve 33, maintaining the basic sealing state inside the device. The movement of the L-shaped plates 32 will also push the gas in the cavity between them and the sealing sleeve 33 to be forced into the cooling tank 37 through the air supply hole 35, enhancing the air flow in the tank, improving the heat dissipation efficiency of the cooling plate 22, effectively removing frictional heat and the heat generated by the battery pack itself during operation, preventing the battery from degrading due to long-term high-temperature operation, and further ensuring the safety and lifespan of the battery pack.

[0024] When the vehicle is stationary, the second springs 34 on both sides will reset the L-shaped plate 32, thereby pushing the battery pack back to the centered position of the protective device 1. This design keeps the battery pack centered and balanced when not in operation, which not only facilitates user positioning and placement, but also provides convenience for frequent battery replacement, improving the practicality and maintainability of the entire system.

[0025] Friction between the friction surfaces 26 on both sides of the battery pack and the protective device 1 buffers the energy generated by small vibrations. When the vibration is large, the battery pack moves inside the protective device 1. During the movement, the protective cover 23 first contacts the inclined surfaces on the pressing plates 31 on both sides, making the contact between the protective cover 23 and the battery pack tighter, thus protecting the cells inside the battery pack. At the same time, the movement of the battery pack will also drive the L-shaped plate 32 to move. The movement of the L-shaped plate 32 will discharge the gas inside the sealing plate 27 through the air outlet 35 into the cooling tank 37. During vibration, the gas flow inside the cooling tank 37 is accelerated, thereby accelerating the cooling effect of the device and avoiding excessive temperature during operation, which would affect the service life of the battery pack.

[0026] In an optional embodiment, the protective device 1 has two sets of movable doors 12 on its top, the protective cover 23 has a handle 11 fixed on its top, the handle 11 passes through the movable doors 12, and the sealing plate 27 has an insertion interface 13 connected to one side.

[0027] It should be noted that before use, open the movable door 12, lift the handle 11 to insert the protective cover 23 and the battery pack into the protective device 1, close the movable door 12 after insertion, install the battery pack inside the protective device 1, and insert the device into the interface of the electric vehicle through the plug interface 13 for use. After use, move the protective cover 23 by using the gas handle 11, and the movement of the protective cover 23 will open the movable door 12 to remove the battery pack.

[0028] In an optional embodiment, both sets of cooling plates 22 are provided with circulation pipes 21 inside, and both sets of cooling plates 22 are provided with cooling grooves 37 on the side near the protective device 1, with the cooling grooves 37 penetrating the circulation pipes 21.

[0029] It should be noted that the coolant flowing inside the circulation pipe 21 absorbs the temperature of the cooling plate 22, and the cooling plate 22 absorbs the temperature generated by the operation of the battery pack. The cooling plate 22 and the circulation pipe 21 inside the cooling plate 22 cool the battery pack, and at the same time cool the heat generated by the friction between the friction surface 26 and the protective device 1. External gas is introduced through the cooling tank 37 to prevent the temperature at the connection between the cooling plate 22 and the protective device 1 from getting too high, thereby improving the cooling efficiency of the device.

[0030] In an optional embodiment, the bottom of the protective cover 23 is connected to multiple sets of connecting posts 24, and a first spring 25 is sleeved on the outside of the connecting post 24. One end of the first spring 25 is connected to the connecting post 24, and the other side of the connecting post 24 is connected to the battery pack. Multiple sets of grooves are opened inside the battery pack, and one end of the connecting post 24 moves inside the groove.

[0031] It should be noted that when the protective cover 23 is in motion, it presses against the connecting post 24, which in turn causes the connecting post 24 to press against the first spring 25. This compresses the first spring 25, causing the protective cover 23 to move toward the battery pack. This makes the contact between the protective cover 23 and the battery pack tighter, thus preventing the internal components such as the battery cells from detaching when the vehicle shakes, which would affect the use of the device.

[0032] In an optional embodiment, the extrusion plate 31 has a bevel on the side near the protective cover 23, and the two sides of the protective cover 23 respectively contact the bevel on the protective cover 23.

[0033] It should be noted that the protective cover 23 is pressed against the inclined surfaces on the pressing plates 31 on both sides, thereby causing the protective cover 23 to press against the connecting post 24, which in turn causes the connecting post 24 to press against the first spring 25. This causes the protective cover 23 to move toward the battery pack, making the contact between the protective cover 23 and the battery pack tighter.

[0034] In an optional embodiment, the battery pack is connected to L-shaped plates 32 on both sides, and a sealing sleeve 33 is provided on the sealing plate 27, with one end of the L-shaped plate 32 inserted into the sealing sleeve 33.

[0035] It should be noted that one end of the L-shaped plate 32 always moves inside the sealing sleeve 33 to ensure that the internal space is relatively sealed. The movement of the L-shaped plate 32 discharges the gas on one side of the L-shaped plate 32 into the cooling tank 37 through the air outlet 35, thereby accelerating the gas flow inside the cooling tank 37.

[0036] In an optional embodiment, a second spring 34 is connected to one side of the L-shaped plate 32, and one end of the second spring 34 is fixedly connected to the sealing plate 27.

[0037] It should be noted that, thanks to the second springs 34 on both sides of the battery pack, the battery pack is always kept in the middle position when the vehicle is not moving, making it easy to remove and replace. At the same time, the second springs 34 also buffer the vibration generated by the battery pack, preventing violent shaking.

[0038] In an optional embodiment, one side of each of the multiple sets of air inlets 35 is connected to the cooling tank 37, and one side of the air inlets 35 is connected to the interior of the protective device 1.

[0039] It should be noted that the movement of the L-shaped plate 32 allows the gas on one side of the L-shaped plate 32 to be discharged into the cooling tank 37 through the air inlet 35, which accelerates the gas flow inside the cooling tank 37, promotes the cooling plate 22 to cool down, and cools the heat generated by friction and the heat generated by the battery pack operation, so as to avoid the battery pack operating for a long time and causing the temperature to be too high, which would affect the service life of the battery pack.

[0040] Working principle: Before using this device, first open the movable door 12 on the protective device 1, then lift the handle 11 upwards and smoothly insert the battery pack with the protective cover 23 into the protective device 1. After the battery pack is fully in place, close the movable door 12 and install the battery pack in the protective device 1. Then, insert the entire device into the corresponding interface of the electric vehicle through the side plug interface 13 to start power supply.

[0041] After use, lift handle 11 again to move protective cover 23 outward. During the removal process, protective cover 23 will push open movable door 12, allowing the battery pack to be easily removed from protective device 1 for replacement or charging.

[0042] During vehicle operation, the vibrations generated are transmitted to the interior of the protective device 1. At this time, the friction surface 26 on the outside of the battery pack and the inner wall of the protective device 1 generate relative friction, which can convert the energy of slight vibrations into heat energy, thus effectively buffering high-frequency small-amplitude vibrations.

[0043] When the vehicle passes through a bumpy road and generates a large vibration, the energy of the vibration will overcome the static friction between the friction surface 26 and the inner wall of the protective device 1, causing the battery pack to make a small displacement inside the device. This displacement will cause the protective cover 23 to move accordingly. The two sides of the protective cover 23 come into contact with the inclined surface on the extrusion plate 31 and generate extrusion. This extrusion pushes the protective cover 23 towards the main body of the battery pack.

[0044] In addition, when the battery pack is displaced inside the protective device 1, it will drive the L-shaped plates 32 connected to both sides to move synchronously. During the movement, the L-shaped plates 32 will compress the second spring 34, and one end of them will always slide inside the sealing sleeve 33, maintaining the basic sealing state inside the device. The movement of the L-shaped plates 32 will also push the gas in the cavity between them and the sealing sleeve 33 to be pressed into the cooling tank 37 through the air supply hole 35, enhancing the air flow in the tank and improving the heat dissipation efficiency of the cooling plate 22.

[0045] When the vehicle is stationary, the second springs 34 on both sides will reset the L-shaped plate 32, thereby pushing the battery pack back to the center position of the protective device 1.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing and buffering support device for an energy storage battery pack, comprising a protective device (1), characterized in that, A cooling mechanism (2) is provided on the outside of the protective device (1); The cooling mechanism (2) includes two sets of cooling plates (22) fixed on both sides of the protective device (1). The protective device (1) contains a battery pack. A protective cover (23) is movably provided on the top of the battery pack. Friction surfaces (26) are provided on both sides of the battery pack. Sealing plates (27) are fixed at both ends of the protective device (1). A protective mechanism (3) is provided on the outside of the battery pack. The protective mechanism (3) includes an L-shaped plate (32) that moves on both sides of the battery pack. A second spring (34) is provided on one side of the L-shaped plate (32). A compression plate (31) is fixed on the sealing plate (27). Multiple sets of air supply holes (35) are opened on both sides of the protective device (1).

2. The shock-absorbing and buffering support device for an energy storage battery pack according to claim 1, characterized in that, The protective device (1) has two sets of movable doors (12) on its top. The protective cover (23) has a handle (11) fixed on its top. The handle (11) passes through the movable doors (12). The sealing plate (27) has an insertion interface (13) connected to one side.

3. The shock-absorbing and buffering support device for an energy storage battery pack according to claim 1, characterized in that, Both sets of cooling plates (22) are equipped with circulation pipes (21), and both sets of cooling plates (22) are provided with cooling grooves (37) on the side near the protective device (1), and the cooling grooves (37) penetrate the circulation pipes (21).

4. The shock-absorbing and buffering support device for an energy storage battery pack according to claim 1, characterized in that, The bottom of the protective cover (23) is connected to multiple sets of connecting posts (24). A first spring (25) is sleeved on the outside of the connecting post (24). One end of the first spring (25) is connected to the connecting post (24), and the other side of the connecting post (24) is connected to the battery pack. Multiple sets of grooves are opened inside the battery pack, and one end of the connecting post (24) moves inside the groove.

5. The shock-absorbing and buffering support device for an energy storage battery pack according to claim 1, characterized in that, The extrusion plate (31) has an inclined surface on the side near the protective cover (23), and the two sides of the protective cover (23) are in contact with the inclined surface on the protective cover (23).

6. The shock-absorbing and buffering support device for an energy storage battery pack according to claim 5, characterized in that, The battery pack is connected to an L-shaped plate (32) on both sides, and a sealing sleeve (33) is provided on the sealing plate (27). One end of the L-shaped plate (32) is inserted into the sealing sleeve (33).

7. The shock-absorbing and buffering support device for an energy storage battery pack according to claim 1, characterized in that, A second spring (34) is connected to one side of the L-shaped plate (32), and one end of the second spring (34) is fixedly connected to the sealing plate (27).

8. The shock-absorbing and buffering support device for an energy storage battery pack according to claim 3, characterized in that, One side of each of the multiple sets of air supply holes (35) is connected to the cooling tank (37), and one side of each air supply hole (35) is connected to the interior of the protective device (1).

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