Battery protection device and battery protection method

Abstract

The present invention belongs to the field of vehicle technology, and discloses a battery protection device and a battery protection method, comprising a detection component, a buffer component, a protection component and a control module. The detection component is spaced apart on the front side of the battery. The buffer component is arranged between the detection component and the battery, and the buffer component includes a flip unit, which is rotatably connected to the vehicle body around the width direction of the vehicle body. The protection component and the vehicle body are surrounded to form a first accommodating space for accommodating the battery; the protection component includes a protective plate, which is movably connected to the vehicle body between a first position and a second position along the height direction of the vehicle body, and the second position is lower than the first position. The control module is communicatively connected to the detection component; the control module is used to control the rotation of the flip unit and the movement of the protective plate from the first position to the second position. When the flip unit collides with an obstacle, the vertical height of the obstacle can be reduced; the protective plate can generate a buffer space with the battery to prevent the battery from being impacted when the obstacle hits the protective plate.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a battery protection device and a battery protection method. Background Art

[0002] Currently, most new energy vehicles (NEVs) use electricity as their power source, which can reduce carbon dioxide emissions and improve energy conservation and environmental protection. To lower the vehicle's center of gravity, the battery is typically mounted on the chassis. However, if the battery is mounted too low, obstacles on the ground can strike or scratch the battery, causing damage and failure, resulting in financial losses.

[0003] In the prior art, patent CN115911713B provides a retractable protective cloth under the vehicle. When the vehicle passes an obstacle, the obstacle can pull the protective cloth to wrap around the battery compartment, preventing the battery compartment from being scratched by the obstacle. However, the protective cloth is relatively weak, and when the obstacle is a relatively sharp object, it can still scratch and damage the battery compartment, causing economic losses and, in severe cases, endangering the driver's life. In addition, for obstacles with large protrusions, simply wrapping the protective cloth around the battery compartment cannot prevent the obstacle from impacting the battery compartment, thereby damaging the battery compartment. Summary of the Invention

[0004] The first object of the present invention is to provide a battery protection device that can effectively prevent obstacles from scratching or hitting the battery, improve the protection strength of the battery, avoid battery damage, reduce economic losses, and ensure the safety of life and property.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A battery protection device is configured to be mounted on a vehicle body having a battery, the battery protection device comprising:

[0007] A detection component is spaced apart and arranged in front of the battery, and is used to detect whether there is an obstacle passing through the bottom of the vehicle body;

[0008] a buffer assembly disposed between the detection assembly and the battery, the buffer assembly including a flip unit rotatably connected to the vehicle body about a width direction of the vehicle body so that an end of the flip unit proximate to the battery flips downward to collide with the obstacle;

[0009] a protection assembly, configured to surround the vehicle body and form a first accommodation space for accommodating the battery; the protection assembly includes a protection plate, the protection plate being movably connected to the vehicle body between a first position and a second position along a height direction of the vehicle body, the protection plate in the second position being separated from the battery and configured to receive impacts from obstacles, the second position being lower than the first position;

[0010] A control module is communicatively connected to the detection component; the control module is used to control the rotation of the flip unit and the movement of the protective plate from the first position to the second position when the detection component detects an obstacle.

[0011] Optionally, the protection assembly further includes a driving unit, the driving unit including a first magnet, a second magnet, and a first reset member, the first magnet being connected to the vehicle body, the second magnet being provided on the protection plate and facing the first magnet, one end of the first reset member being connected to the vehicle body, and the other end being connected to the protection plate; at least one of the first magnet and the second magnet being an electromagnet, and the electromagnet being communicatively connected to the control module, the control module being configured to control power on or power off of the electromagnet so that the first magnet and the second magnet move away from each other or move closer to each other under the action of the first reset member;

[0012] and / or,

[0013] The protective plate includes a bottom plate and a guide plate. The guide plate is bent and connected to one end of the bottom plate close to the buffer assembly. The guide plate extends upward relative to the bottom plate and toward the buffer assembly.

[0014] Optionally, the protective component also includes two first connecting plates, both of which are connected to the bottom of the vehicle body and are arranged on both sides of the battery. Each of the first connecting plates is connected to at least one first magnet and at least one first reset member on the side facing away from the bottom of the vehicle body.

[0015] Optionally, the buffer assembly further includes a telescopic driving member and a second restoring member, wherein the rotation center of the flip unit, the telescopic driving member, and the second restoring member are spaced apart along the front-to-rear direction of the vehicle body; a housing of the telescopic driving member is connected to the bottom of the vehicle body, an output end of the telescopic driving member is slidably abutted against the flip unit, and one end of the second restoring member is connected to the bottom of the vehicle body, and the other end is connected to the flip unit;

[0016] The control module is in communication with the telescopic drive member and is used to drive the telescopic drive member to open and close.

[0017] Optionally, the buffer assembly also includes a second connecting plate and a telescopic member, the second connecting plate is connected to the bottom of the vehicle body, the shell of the telescopic drive member and one end of the telescopic member are both arranged on the second connecting plate, and the other end of the telescopic member is rotationally connected to the flip unit.

[0018] Optionally, the flip unit includes a flip plate, a wrapping member, and a first buffer member, the flip plate being rotatably connected to the vehicle body in a width direction of the vehicle body, the wrapping member and the flip plate enclosing a second accommodation space, and at least one end of the wrapping member being detachably connected to the flip plate, the wrapping member having a flattened state in which it carries the first buffer member and a stowed state in which it is stowed at one end of the flip plate;

[0019] The control module is used to control the package to switch from the flattened state to the stored state.

[0020] Optionally, the flip unit further includes a second buffer member, which is disposed between the flip plate and the first buffer member and attached to the flip plate;

[0021] and / or,

[0022] The flip unit also includes a winding mechanism and a traction member. The winding mechanism is arranged on the flip plate. The traction member is connected to the wrapping member and extends from one end of the wrapping member to the other end of the wrapping member. The winding mechanism is used to wind the wrapping member to the storage state by winding the traction member.

[0023] Optionally, the flip unit further includes a connecting piece, one end of the traction piece is connected to the wrapping piece through the connecting piece, and the connecting piece is provided with a limiting groove; a connecting seat is convexly provided on one side of the flip plate close to the detection component, the connecting seat is provided with a third magnet, and a sliding cavity is opened, a limiting piece and a third reset piece are provided in the sliding cavity, the third reset piece is compressed and limited between the inner wall of the sliding cavity and the limiting piece, the limiting piece and the third magnet are detachably magnetically attracted, and the limiting piece has a locking position in which it is inserted into the limiting groove and an unlocking position in which it is disengaged from the limiting groove;

[0024] The control module is used to control the third magnet to be energized or de-energized, so that the limiting member slides along the sliding cavity between the locked position and the unlocked position.

[0025] A third object of the present invention is to provide a battery protection method that can prevent the battery from being scratched or impacted, thereby avoiding battery damage.

[0026] To achieve the above object, the present invention adopts the following technical solutions:

[0027] A battery protection method employs the battery protection device described above, wherein the detection assembly includes a pressure detection member configured to collide with the obstacle; the method comprising:

[0028] Obtaining a pressure value detected by the pressure detection component;

[0029] When the pressure value reaches a preset pressure value, the control module controls the flip unit to rotate and controls the protection plate to move from the first position to the second position.

[0030] Beneficial effects of the present invention:

[0031] The present invention provides a battery protection device and method, which are installed on a vehicle body having a battery and are used to protect the vehicle body battery. The battery protection device includes a detection component, a buffer component, a protection component, and a control module. When the vehicle body encounters an obstacle while moving forward, the obstacle will impact the detection component. Based on the pressure value detection result, the control module controls the flipping unit to flip, causing the flipping unit to collide with the obstacle, lowering the vertical height of the obstacle and reducing the impact pressure of the obstacle, thereby preventing the obstacle from contacting the battery or reducing contact with the battery. At the same time, the control module controls the protection plate to move from a first position close to the battery to a second position separated from the battery. As the vehicle body continues to move forward, the obstacle will sequentially pass through the buffer component and the protection component.

[0032] By colliding with obstacles, the flip unit can reduce the impact force of the obstacle on the battery, preventing damage to the battery caused by excessive impact force. When the obstacle is positioned below the protective assembly, the protective plate prevents the obstacle from scratching the battery. In this second position, the protective plate is separated from the battery, creating a buffer space between the protective plate and the battery. The buffer space provides a movable range for the protective assembly, thereby preventing the battery from being impacted by the obstacle hitting the protective plate. This improves the battery's protective strength, prevents battery damage, reduces economic losses, and ensures the safety of life and property. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a first view of a battery protection device provided by an embodiment of the present invention;

[0034] Figure 2 is a second view of the battery protection device provided by an embodiment of the present invention;

[0035] Figure 3 is a third view of the battery protection device provided by an embodiment of the present invention;

[0036] Figure 4 is a first view of a buffer assembly provided by an embodiment of the present invention;

[0037] Figure 5 is a second view of the buffer assembly provided by an embodiment of the present invention;

[0038] Figure 6 is a third view of the buffer assembly provided by an embodiment of the present invention;

[0039] Figure 7 yes Figure 4Enlarged view of point A in the middle.

[0040] In the picture:

[0041] 100. Battery;

[0042] 1. Detection assembly; 11. Third connecting plate; 12. Mounting plate; 13. Pressure detection component;

[0043] 2. Buffer assembly; 21. Turning unit; 211. Turning plate; 212. Wrapping member; 213. First buffer member; 214. Second buffer member; 215. Pulling member; 216. Connecting member; 217. Connecting seat; 2171. Sliding cavity; 2172. Third magnet; 2173. Limiting member; 22. Telescopic driving member; 23. Second reset member; 24. Second connecting plate; 25. Telescopic member;

[0044] 3. Protective assembly; 31. Protective plate; 311. Bottom plate; 312. Guide plate; 32. Drive unit; 321. First magnet; 322. Second magnet; 323. First reset member; 33. First connecting plate. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0046] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0049] Example 1

[0050] like Figures 1 to 7 As shown, a battery protection device provided in this embodiment can effectively prevent obstacles from scratching or hitting the battery 100 installed on the vehicle body, improve the protection strength of the battery 100, avoid damage to the battery 100, reduce economic losses, and ensure the safety of life and property.

[0051] like Figures 1 to 3 As shown, this embodiment provides a battery protection device configured to be installed on a vehicle body (not shown) having a battery 100 to protect the battery 100 from scratches or impacts. The battery protection device includes a detection component 1, a buffer component 2, a protection component 3, and a control module (not shown).

[0052] Detection assembly 1 is spaced in front of battery 100 and can be used to detect whether there are obstacles passing under the vehicle body. Buffer assembly 2 is located between detection assembly 1 and battery 100 and can cushion obstacles under the vehicle body, reducing their vertical height and thus minimizing contact between the obstacles and battery 100.

[0053] The buffer assembly 2 includes a flip unit 21, which is rotatably connected to the vehicle body about the width of the vehicle body. This allows the end of the flip unit 21 closest to the battery 100 to flip downward and collide with an obstacle, thereby lowering the vertical height of the obstacle and reducing the impact pressure of the obstacle, preventing the obstacle from scratching or impacting the battery 100. The protective assembly 3 and the vehicle body form a first storage space, which can be used to accommodate the battery 100 and prevent it from being scratched or damaged due to exposure.

[0054] The protection assembly 3 includes a protection plate 31 that is movably connected to the vehicle body between a first position and a second position along the vehicle body height. In the first position, the protection plate 31 is close to the battery 100. In the second position, the protection plate 31 is separated from the battery 100 and is used to absorb impacts from obstacles. The second position is lower than the first position.

[0055] The control module is in communication with the detection component 1. When the detection component 1 detects an obstacle, it sends a signal to the control module, which then sends an instruction to control the rotation of the flip unit 21 and the movement of the protective plate 31 from the first position to the second position.

[0056] When the detection component 1 detects an obstacle passing under the vehicle body, the control module controls the flip unit 21 to flip, causing the flip unit 21 to collide with the obstacle and cushion the obstacle, reducing the vertical height of the obstacle so that the obstacle cannot contact the battery 100 or reduces its contact with the battery 100. At the same time, the control module controls the protective plate 31 to move from a first position close to the battery 100 to a second position separated from the battery 100. The vehicle body continues to move forward, and the obstacle passes through the buffer component 2 and the protective component 3 in sequence. By colliding with the obstacle, the flip unit 21 can reduce the impact force of the obstacle on the battery 100, preventing the obstacle from damaging the battery 100 due to excessive impact force. When an obstacle is placed under the protective component 3, the protective plate 31 can prevent the obstacle from scratching the battery 100. At this time, the protective plate 31 is located in the second position separated from the battery 100, and a buffer space is generated between the protective plate 31 and the battery 100. The buffer space provides a movable range for the protective component 3, thereby avoiding impact on the battery 100 when the obstacle hits the protective plate 31, improving the protection strength of the battery 100, preventing damage to the battery 100, reducing economic losses, and ensuring the safety of life and property.

[0057] In this embodiment, the side of the protection plate 31 close to the battery 100 and the side of the battery 100 close to the protection plate 31 are both rough surfaces and are not completely adhered to each other.

[0058] Alternatively, as Figure 1As shown, the protective assembly 3 also includes a drive unit 32. The drive unit 32 includes a first magnet 321, a second magnet 322, and a first reset member 323. The first magnet 321 is connected to the vehicle body, and the second magnet 322 is disposed on the protective plate 31 and faces the first magnet 321. One end of the first reset member 323 is connected to the vehicle body, and the other end is connected to the protective plate 31. At least one of the first magnet 321 and the second magnet 322 is an electromagnet, and the electromagnet is communicatively connected to the control module. When the detection component 1 detects an obstacle passing under the vehicle body, the control module sends a command and controls the electromagnet to be energized, thereby generating a magnetic field around the electromagnet and generating a repulsive force on the first magnet 321 or the second magnet 322, causing the first magnet 321 and the second magnet 322 to separate, thereby driving the protective plate 31 to move from the first position to the second position. At the same time, driven by the protective plate 31, the first reset member 323 deforms and stretches, at which time a buffer space is formed between the protective plate 31 and the battery 100, preventing the battery 100 from being impacted when the obstacle hits the protective plate 31, thereby improving the protective strength of the battery 100 and preventing damage to the battery 100. When the obstacle passes through the battery 100, the control module sends a command and controls the electromagnet to be de-energized. At this time, the repulsive force disappears, and the first reset member 323 drives the protective plate 31 to reset to the first position. In addition, by providing the first reset member 323, the protective plate 31 and the vehicle body can be connected to prevent the protective plate 31 from falling.

[0059] Exemplarily, the first restoring member 323 includes a spring. In other embodiments, an elastic cord or other item with elastic recovery characteristics can be selected as the first restoring member 323 according to actual needs, which is not limited here.

[0060] In this embodiment, the first magnet 321 is an electromagnet. In other embodiments, the second magnet 322 may also be an electromagnet, or both the first magnet 321 and the second magnet 322 may be electromagnets, which is not limited here.

[0061] Alternatively, as Figure 3 As shown, the protective plate 31 includes a base plate 311 and a guide plate 312. The guide plate 312 is bent and connected to the end of the base plate 311 near the buffer assembly 2. The guide plate 312 extends upward relative to the base plate 311 and toward the buffer assembly 2. When an obstacle is encountered under the vehicle body, the end of the flip unit 21 near the battery 100 will flip and collide with the obstacle, reducing the vertical height of the obstacle. At the same time, the tilted flip unit 21 and the guide plate 312 cooperate to guide the obstacle, moving it from under the flip unit 21 to under the protective plate 31, preventing the obstacle from hitting the underside of the vehicle body.

[0062] Furthermore, when the protective plate 31 moves to the second position, the end of the guide plate 312 away from the bottom plate 311 is higher than the flip unit 21, preventing obstacles from moving above the protective plate 31, avoiding obstacles from hitting or scratching the battery 100, and ensuring the protection effect of the battery 100.

[0063] In this embodiment, the bottom plate 311 and the guide plate 312 are connected by a circular arc transition, which can avoid stress concentration in the transition area and prevent the protective plate 31 from breaking or failing. In addition, the use of a circular arc transition can prevent the formation of sharp edges and corners that may collide with obstacles and wear, thereby extending the service life of the protective plate 31.

[0064] Alternatively, as Figure 1 As shown, the protective assembly 3 also includes two first connecting plates 33. Both first connecting plates 33 are connected to the bottom of the vehicle body and are located on both sides of the battery 100. Each first connecting plate 33 is connected to at least one first magnet 321 and at least one first reset member 323 on the side facing away from the bottom of the vehicle body. That is, at least one first magnet 321 and at least one first reset member 323 are provided on both sides of the battery 100, and each first magnet 321 is correspondingly provided with a second magnet 322. When an obstacle is detected, the control module controls the first magnets 321 on both sides of the battery 100 to be energized, so that the first magnets 321 on both sides simultaneously drive the two ends of the protective plate 31 to move to the second position, so that the protective plate 31 always remains stable, ensuring sufficient buffer space between the battery 100 and the protective plate 31, avoiding the reduction of buffer space due to tilting and displacement of the protective plate 31, and ensuring the protective effect of the battery 100. When the first magnet 321 is powered off, driven by the first reset members 323 on both sides of the battery 100, both ends of the protective plate 31 move to the first position at the same time, so that the battery 100 is located in the first accommodation space formed by the protective component 3 and the vehicle body, preventing the battery 100 from being scratched due to exposure.

[0065] In this embodiment, each first connecting plate 33 is provided with two first magnets 321 and two first restoring members 323. In other embodiments, each first connecting plate 33 may be provided with one or more first magnets 321 and one or more first restoring members 323, and each first magnet 321 may be provided with a corresponding second magnet 322, depending on actual needs.

[0066] Alternatively, as Figure 3 and Figure 4As shown, the buffer assembly 2 also includes a telescopic drive member 22 and a second return member 23. The rotation center of the flip unit 21, the telescopic drive member 22, and the second return member 23 are spaced apart along the front-to-back direction of the vehicle body. The housing of the telescopic drive member 22 is connected to the bottom of the vehicle body. The output end of the telescopic drive member 22 slidably abuts the flip unit 21, and the control module is communicatively connected to the telescopic drive member 22. One end of the second return member 23 is connected to the bottom of the vehicle body, and the other end is connected to the flip unit 21. The second return member 23 can suspend the flip unit 21 from the bottom of the vehicle body to prevent the flip unit 21 from falling.

[0067] When the detection component 1 detects that an obstacle passes under the vehicle body, the control module drives the telescopic drive member 22 to open, and the output end of the telescopic drive member 22 will push the flip unit 21 downward. The flip unit 21 is connected to the vehicle body for rotation, so the flip unit 21 will rotate around the width direction of the vehicle body. At the same time, the output end of the telescopic drive member 22 will slide along the flip unit 21. In addition, driven by the flip unit 21, the second reset member 23 will be stretched.

[0068] When the flip unit 21 flips to a height where it collides with an obstacle, the control module activates the retractable actuator 22 to close. The collision between the flip unit 21 and the obstacle lowers the obstacle's vertical height, reducing the contact area between the obstacle and the battery 100. When the obstacle passes through the flip unit 21, the second return element 23 drives the flip unit 21 upward, preventing the obstacle from rigidly impacting the flip unit 21 and potentially damaging it.

[0069] Exemplarily, the second restoring member 23 includes a spring. In other embodiments, an elastic cord or other item with elastic recovery characteristics can be selected as the second restoring member 23 according to actual needs, which is not limited here.

[0070] Alternatively, as Figures 4 to 6 As shown, the buffer assembly 2 further includes a second connecting plate 24 and a telescopic member 25. The second connecting plate 24 is connected to the bottom of the vehicle body. The housing of the telescopic driving member 22 and one end of the telescopic member 25 are both disposed on the second connecting plate 24. The telescopic driving member 22 and the telescopic member 25 are connected to the vehicle body via the second connecting plate 24. The other end of the telescopic member 25 is rotationally connected to the flip unit 21.

[0071] When an obstacle is detected, the control module activates the telescopic drive 22. Working in concert with the telescopic member 25, the flip unit 21 rotates about the width of the vehicle body, centering on the output end of the second drive. Simultaneously, the telescopic drive 22 slides along the flip unit 21, extending the telescopic member 25. When the flip unit 21 reaches a height where it collides with the obstacle, the control module activates the telescopic drive 22, closing the flip unit 21. The flip unit 21 remains flipped.

[0072] In this embodiment, the telescopic drive member 22 includes a telescopic pole, and the telescopic member 25 includes a spring rod. In other embodiments, a pneumatic cylinder or an electric cylinder can be used as the telescopic drive member 22, and a telescopic pole or a telescopic arm can be used as the telescopic member 25 according to actual needs, which is not limited here.

[0073] Alternatively, as Figure 1 As shown, the detection assembly 1 includes a third connecting plate 11, a mounting plate 12, and one or more pressure detection members 13 (e.g., 10 to 20, with 10 being exemplary provided in this embodiment) disposed on the mounting plate 12. The third connecting plate 11 is connected to the underside of the vehicle body, and the mounting plate 12 is rotatably connected to the third connecting plate 11 about the width of the vehicle body. When an obstacle passes under the vehicle body, the obstacle will strike the mounting plate 12 and the pressure detection member 13. Under the action of the obstacle, the mounting plate 12 will rotate toward the buffer assembly 2, thereby avoiding the obstacle and facilitating its passage.

[0074] Furthermore, one or more pressure sensing elements 13 are in communication with the control module. When an obstacle strikes a pressure sensing element 13, the pressure sensing element 13 transmits a signal to the control module. The control module receives the signal from the pressure sensing element 13 to obtain a measured pressure value. When the pressure value exceeds a preset pressure value, the control module controls the rotation of the flip unit 21 and the movement of the protective plate 31 from the first position to the second position.

[0075] For example, the preset pressure value is 50 N. When the pressure value of the obstacle measured by the detection component 1 is greater than or equal to 50 N, the control module controls the flip unit 21 to rotate and controls the protective plate 31 to move from the first position to the second position.

[0076] Alternatively, as Figure 2 and Figure 4 As shown, the flip unit 21 includes a flip plate 211, a wrapping member 212, and a first buffer member 213. The flip plate 211 is rotatably connected to the vehicle body in the width direction of the vehicle body. The wrapping member 212 is connected to the side of the flip plate 211 facing away from the bottom of the vehicle body. The wrapping member 212 and the flip plate 211 enclose a second storage space, and at least one end of the wrapping member 212 is detachably connected to the flip plate 211. The wrapping member 212 has a flattened state in which it supports the first buffer member 213 and a stowed state in which it is stowed at one end of the flip plate 211. When an obstacle is located under the flip unit 211, the control module controls the wrapping member 212 to switch from the flattened state to the stowed state, causing the first buffer member 213 to separate from the wrapping member 212 and the flip plate 211 and fall and wrap around the surface of the obstacle, thereby reducing the sharpness and surface hardness of the obstacle and preventing the obstacle from scratching the flip plate 211 and the protective assembly 3.

[0077] Furthermore, if Figure 4As shown, the flip unit 21 also includes a second buffer 214. The second buffer 214 is disposed between the flip plate 211 and the first buffer 213 and is attached to the flip plate 211. When the first buffer 213 falls, the second buffer 214 directly collides with an obstacle. The second buffer 214 absorbs the impact force generated by the collision, thereby reducing the impact pressure of the obstacle and preventing the obstacle from damaging the flip plate 211.

[0078] Optionally, a smooth coating or a hydrophobic layer is provided between the first buffer layer and the second buffer layer to prevent the first buffer layer and the second buffer layer from adhering to each other.

[0079] For example, both the first and second buffer layers are rubber pads. In other embodiments, flexible cushioning materials such as sponge pads can be used as the first and second buffer layers, or a rubber pad can be used as the first buffer layer and a sponge pad can be used as the second buffer layer, depending on actual needs. This is not limited here.

[0080] Optionally, the flip unit 21 further includes a reeling mechanism and a traction member 215. The reeling mechanism is disposed on the flip plate 211, and the traction member 215 is connected to the wrapping member 212 and extends from one end of the wrapping member 212 to the other end of the wrapping member 212. When the detection value of the pressure detection member 13 is greater than a preset pressure value, the control module sends a command to the reeling mechanism, which in turn reels the traction member 215, causing the traction member 215 to drive the wrapping member 212 to be wound around the reeling mechanism, thereby winding the wrapping member 212 into a stowed state. The first buffer member 213 separates from the wrapping member 212, falls, and wraps around the surface of the obstacle, thereby reducing the sharpness of the obstacle.

[0081] Exemplarily, the winding mechanism includes a winding motor, and the traction member 215 includes a winding rope.

[0082] Alternatively, as Figure 1 、 Figure 6 and Figure 7As shown, the flip unit 21 also includes a connecting member 216. One end of the traction member 215 is connected to the wrapping member 212 through the connecting member 216, and the connecting member 216 is provided with a limiting groove. A connecting seat 217 is convexly provided on the side of the flip plate 211 close to the detection component 1. The connecting seat 217 is provided with a third magnet 2172 and a sliding cavity 2171. A limiting member 2173 and a third reset member (not shown in the figure) are provided in the sliding cavity 2171. The third reset member is compressed and limited between the inner wall of the sliding cavity 2171 and the limiting member 2173. The limiting member 2173 has a locked position for being inserted into the limiting groove and an unlocked position for being disengaged from the limiting groove. When the stopper 2173 is locked into the locking position of the stopper slot, the wrapping member 212 carries the first buffer member 213 and is in a flattened state. When the pressure value of the obstacle detected is greater than a preset pressure value, the control module controls the third magnet 2172 to be energized, thereby generating a magnetic field around the third magnet 2172 and generating an attractive force on the stopper 2173, causing the stopper 2173 to slide along the sliding cavity 2171 from the locked position to the unlocked position, thereby separating the connecting member 216 from the connecting seat 217, and allowing the winding mechanism to wind the wrapping member 212 to the storage state through the winding traction member 215. When the first buffer member 213 falls off, the control module controls the third magnet 2172 to be de-energized. Under the push of the third reset member, the stopper 2173 slides out of the sliding cavity 2171, facilitating the reinstallation of the connecting member 216.

[0083] The limiting member 2173 is illustratively an iron block, which can be magnetically attracted by the third magnet 2172 after power is supplied.

[0084] Exemplarily, the third reset member includes a spring. In other embodiments, a disc spring or the like can also be selected as the third reset member according to actual needs, which is not limited here.

[0085] Optionally, along the width direction of the vehicle body, the extension lengths of the mounting plate 12 and the pressure detection member 13 are the same and are greater than or equal to the width of the battery 100. This allows for more comprehensive detection of obstacles passing through the battery 100, fully protecting the battery 100 and preventing damage to the battery 100.

[0086] For example, a spring shaft is connected between the third connecting plate 11 and the mounting plate 12. When an obstacle pushes the mounting plate 12 toward the buffer assembly 2, the spring shaft reduces vibration between the third connecting plate 11 and the mounting plate 12 and cushions the mounting plate 12, preventing the mounting plate 12 from rotating and striking the third connecting plate 11. Furthermore, when the obstacle passes through the detection assembly 1, the spring shaft drives the mounting plate 12 to rotate toward the front of the vehicle body and reset itself, facilitating further obstacle detection.

[0087] Example 2

[0088] This embodiment provides a battery protection method using the battery protection device described in Example 1. The detection component 1 includes a pressure detection member 13, which is used to collide with an obstacle to obtain the pressure value of the obstacle. The battery protection method includes:

[0089] The pressure value detected by the pressure detection element 13 is obtained and sent to the control module. The control module then determines whether the pressure value is greater than a preset pressure value. When the detected pressure value reaches the preset pressure value, the control module controls the rotation of the flip unit 21 to cause the flip unit 21 to collide with the obstacle, thereby lowering the vertical height of the obstacle and reducing the pressure value of the obstacle, thereby reducing the impact force of the obstacle. At the same time, the control module also controls the protective plate 31 to move from the first position to the second position, creating a buffer space between the protective plate 31 and the battery 100, providing a movable range for the protective plate 31, thereby preventing the battery 100 from being impacted by the obstacle when it hits the protective plate 31, thereby improving the protection strength of the battery 100. When the detected pressure value does not reach the preset pressure value, the obstacle can pass smoothly under the vehicle body without impacting the battery 100.

[0090] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A battery protection device configured to be mounted on a vehicle body having a battery (100), characterized in that: The battery protection device comprises: A detection component (1) is spaced apart and arranged on the front side of the battery (100), and the detection component (1) is used to detect whether there is an obstacle passing through the bottom of the vehicle body; A buffer assembly (2) is provided between the detection assembly (1) and the battery (100), the buffer assembly (2) comprising a flip unit (21), the flip unit (21) being rotatably connected to the vehicle body in a width direction of the vehicle body so that an end of the flip unit (21) close to the battery (100) flips downward to collide with the obstacle; A protection assembly (3) is formed with the vehicle body to form a first accommodating space for accommodating the battery (100); the protection assembly (3) includes a protection plate (31), the protection plate (31) is movably connected to the vehicle body between a first position and a second position along the height direction of the vehicle body, the protection plate (31) in the second position is separated from the battery (100) and is used to receive the impact of obstacles, and the second position is lower than the first position; A control module is communicatively connected to the detection component (1); the control module is used to control the rotation of the flip unit (21) and the movement of the protective plate (31) from the first position to the second position when the detection component (1) detects an obstacle.

2. The battery protection device according to claim 1, characterized in that: The protection component (3) further includes a driving unit (32), the driving unit (32) including a first magnet (321), a second magnet (322) and a first reset member (323), the first magnet (321) being connected to the vehicle body, the second magnet (322) being arranged on the protection plate (31) and facing the first magnet (321), one end of the first reset member (323) being connected to the vehicle body, and the other end being connected to the protection plate (31); at least one of the first magnet (321) and the second magnet (322) being an electromagnet, and the electromagnet being communicatively connected to the control module, the control module being used to control the electromagnet to be powered on or off, so that the first magnet (321) and the second magnet (322) are moved away from each other or moved closer to each other under the action of the first reset member (323); and / or, The protective plate (31) comprises a bottom plate (311) and a guide plate (312); the guide plate (312) is bent and connected to one end of the bottom plate (311) close to the buffer assembly (2); the guide plate (312) extends upward relative to the bottom plate (311) and in a direction close to the buffer assembly (2).

3. The battery protection device according to claim 2, characterized in that: The protection assembly (3) further comprises two first connecting plates (33), both of which are connected to the bottom of the vehicle body and are respectively arranged on both sides of the battery (100), and each of the first connecting plates (33) is connected to at least one first magnet (321) and at least one first reset member (323) on a side facing away from the bottom of the vehicle body.

4. The battery protection device according to claim 1, characterized in that: The buffer assembly (2) further comprises a telescopic driving member (22) and a second restoring member (23); the rotation center of the flip unit (21), the telescopic driving member (22) and the second restoring member (23) are arranged at intervals along the front-rear direction of the vehicle body; the housing of the telescopic driving member (22) is connected to the bottom of the vehicle body; the output end of the telescopic driving member (22) is slidably abutted against the flip unit (21); one end of the second restoring member (23) is connected to the bottom of the vehicle body, and the other end is connected to the flip unit (21); The control module is in communication with the telescopic drive member (22) and is used to drive the opening and closing of the telescopic drive member (22).

5. The battery protection device according to claim 4, characterized in that: The buffer assembly (2) further comprises a second connecting plate (24) and a telescopic member (25); the second connecting plate (24) is connected to the bottom of the vehicle body; the housing of the telescopic driving member (22) and one end of the telescopic member (25) are both arranged on the second connecting plate (24); and the other end of the telescopic member (25) is rotationally connected to the flip unit (21).

6. The battery protection device according to any one of claims 1 to 5, characterized in that: The flip unit (21) comprises a flip plate (211), a wrapping member (212) and a first buffer member (213); the flip plate (211) is rotatably connected to the vehicle body in the width direction of the vehicle body; the wrapping member (212) and the flip plate (211) enclose a second accommodation space; at least one end of the wrapping member (212) is detachably connected to the flip plate (211); the wrapping member (212) has a flattened state for carrying the first buffer member (213) and a stored state for being stored at one end of the flip plate (211); The control module is used to control the wrapping piece (212) to switch from the flattened state to the stored state.

7. The battery protection device according to any one of claim 6, characterized in that: The flip unit (21) further includes a second buffer member (214), which is disposed between the flip plate (211) and the first buffer member (213) and is attached to the flip plate (211); and / or, The turnover unit (21) further comprises a reeling mechanism and a traction member (215); the reeling mechanism is arranged on the turnover plate (211); the traction member (215) is connected to the wrapping member (212) and extends from one end of the wrapping member (212) to the other end of the wrapping member (212); the reeling mechanism is used to reel the wrapping member (212) to the storage state by reeling the traction member (215).

8. The battery protection device according to claim 7, characterized in that: The flip unit (21) further comprises a connecting member (216), one end of the traction member (215) is connected to the wrapping member (212) via the connecting member (216), and the connecting member (216) is provided with a limiting groove; a connecting seat (217) is convexly provided on one side of the flip plate (211) close to the detection component (1), the connecting seat (217) is provided with a third magnet (2172), and a sliding cavity (2171) is opened, a limiting member (2173) and a third reset member are provided in the sliding cavity (2171), the third reset member is compressed and limited between the inner wall of the sliding cavity (2171) and the limiting member (2173), the limiting member (2173) and the third magnet (2172) are separably magnetically attracted, and the limiting member (2173) has a locking position for being inserted into the limiting groove and an unlocking position for being released from the limiting groove; The control module is used to control the third magnet (2172) to be powered on or off, so that the limiting member (2173) slides along the sliding cavity (2171) between the locked position and the unlocked position.

9. A battery protection method, using the battery protection device according to any one of claims 1 to 8, characterized in that: The detection assembly (1) comprises a pressure detection member (13), and the pressure detection member (13) is used for colliding with the obstacle; the method comprises: Obtaining a pressure value detected by the pressure detection element (13); When the pressure value reaches a preset pressure value, the control module controls the turning unit (21) to rotate and controls the protection plate (31) to move from the first position to the second position.

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