Battery protection device and battery protection method

Abstract

The invention belongs to the technical field of vehicles, and discloses a battery protection device and method, and the device comprises a detection assembly, a buffer assembly, a protection assembly, and a control module. The detection assemblies are arranged in front of the battery at intervals. The buffer assembly is arranged between the detection assembly and the battery and comprises an overturning unit, and the overturning unit is rotatably connected to the vehicle body in the width direction of the vehicle body. A first accommodating space for accommodating a battery is defined by the protection assembly and the vehicle body; the protection assembly comprises a protection plate, the protection plate is movably connected to the vehicle body between a first position and a second position in the height direction of the vehicle body, and the second position is lower than the first position. The control module is in communication connection with the detection assembly; the control module is used for controlling the overturning unit to rotate and controlling the protection plate to move from the first position to the second position. When the overturning unit collides with the obstacle, the vertical height of the obstacle can be reduced; the protection plate can generate a buffer space with the battery to prevent the battery from being impacted when an obstacle impacts the protection 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] At present, most new energy vehicles use electricity as a power source, which can reduce carbon dioxide emissions and save energy and protect the environment. In order to lower the center of gravity of the vehicle, the battery of new energy vehicles is usually installed on the chassis of the vehicle. However, if the battery is installed too low, obstacles on the ground will hit or scratch the battery, causing damage and failure of the battery, resulting in economic losses.

[0003] In the prior art, patent CN115911713B is provided with a retractable protective cloth under the vehicle. When the vehicle passes an obstacle, the obstacle can drive the protective cloth to wrap around the battery compartment to prevent the battery compartment from being scratched by the obstacle. However, the strength of the protective cloth is relatively low. When the obstacle is a relatively sharp object, it will still scratch and damage the battery compartment, causing economic losses, and in serious cases, endangering the driver's life. In addition, for obstacles with a large protrusion height, simply wrapping the protective cloth outside the battery compartment cannot resist the impact of the obstacle on 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 installed on a vehicle body having a battery, the battery protection device comprising:

[0007] A detection component is arranged at intervals on the front side of the battery, and the detection component is used to detect whether there is an obstacle passing through the bottom of the vehicle body;

[0008] a buffer assembly, arranged between the detection assembly and the battery, the buffer assembly comprising a flip unit, the flip unit being rotatably connected to the vehicle body around the width direction of the vehicle body so that one end of the flip unit close to the battery flips downward to collide with the obstacle;

[0009] a protection assembly, which is surrounded by the vehicle body to form a first accommodation space for accommodating the battery; the protection assembly includes a protection 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, the protection plate at the second position is separated from the battery and is used to receive the impact of obstacles, and the second position is lower than the first position;

[0010] A control module is communicatively connected with 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 component further includes a driving unit, the driving unit includes a first magnet, a second magnet and a first reset member, the first magnet is connected to the vehicle body, the second magnet is arranged on the protection plate and directly faces the first magnet, one end of the first reset member is connected to the vehicle body, and the other end is connected to the protection plate; at least one of the first magnet and the second magnet is an electromagnet, and the electromagnet is communicatively connected to the control module, and the control module is used to control the electromagnet to be powered on or off, so that the first magnet and the second magnet are moved away from each other or moved closer to each other under the action of the first reset member;

[0012] and / or,

[0013] The protection 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 a direction close to 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, and 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, and the rotation center of the flip unit, the telescopic driving member and the second restoring member are arranged at intervals along the front-rear direction of the vehicle body; the housing of the telescopic driving member is connected to the bottom of the vehicle body, the output end of the telescopic driving member is slidably abutted against the flip unit, 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 connection with the telescopic driving member, and is used for driving the opening and closing of the telescopic driving member.

[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 comprises a flip plate, a wrapping member and a first buffer member, the flip plate is rotatably connected to the vehicle body around the width direction of the vehicle body, the wrapping member and the flip plate enclose a second accommodation space, and at least one end of the wrapping member is detachably connected to the flip plate, and the wrapping member has a flattened state carrying the first buffer member and a stored state stored 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, which is disposed between the flip plate and the first buffer and attached to the flip plate;

[0021] and / or,

[0022] The flip unit also includes a winding mechanism and a traction member, wherein 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, and 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 comprises 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 separably magnetically attracted, and the limiting piece has a locking position inserted into the limiting groove and an unlocking position separated 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 locking position and the unlocking position.

[0025] The third object of the present invention is to provide a battery protection method, which 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, using the battery protection device as described above, wherein the detection component includes a pressure detection member, and the pressure detection member is used to collide with the obstacle; the method includes:

[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 a battery protection method, which are installed on a vehicle body with 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 hit the detection component. According to the pressure value detection result, the control module will control the flip unit to flip, so that the flip unit collides with the obstacle, reducing the vertical height of the obstacle, reducing the impact pressure of the obstacle, making the obstacle unable to contact the battery or reducing the contact with the battery. At the same time, the control module will control the protection plate to move from a first position close to the battery to a second position separated from the battery. The vehicle body continues to move forward, and the obstacle will pass through the buffer component and the protection component in sequence.

[0032] By colliding with obstacles, the flip unit can reduce the impact force of obstacles on the battery and prevent the obstacles from damaging the battery due to excessive impact force. When the obstacle is located under the protective component, the protective plate can prevent the obstacle from scratching the battery, and at this time the protective plate is in the second position separated from the battery, and a buffer space is generated between the protective plate and the battery. The buffer space provides a movable range for the protective component, thereby preventing the battery from being impacted when the obstacle hits the protective plate, improving the protection strength of the battery, preventing battery damage, reducing economic losses, and ensuring the safety of life and property. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 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 the 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 the embodiment of the present invention;

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

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

[0040] In the figure:

[0041] 100. Battery;

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

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

[0044] 3. Protection assembly; 31. Protection 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 in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

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

[0048] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] Embodiment 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 example provides a battery protection device, which is configured to be installed on a vehicle body (not shown in the figure) having a battery 100, and is used to protect the battery 100 and prevent the battery 100 from being scratched or impacted. The battery protection device includes a detection component 1, a buffer component 2, a protection component 3 and a control module (not shown in the figure).

[0052] The detection component 1 is arranged at intervals in front of the battery 100, and the detection component 1 can be used to detect whether there is an obstacle passing under the vehicle body. The buffer component 2 is arranged between the detection component 1 and the battery 100, and can buffer the obstacle under the vehicle body, reduce the vertical height of the obstacle, and thus reduce the contact between the obstacle and the battery 100.

[0053] The buffer assembly 2 includes a flip unit 21, which is rotatably connected to the vehicle body around the width direction of the vehicle body, so that the end of the flip unit 21 close to the battery 100 flips downward to collide with the obstacle, thereby reducing the vertical height of the obstacle, reducing the impact pressure value of the obstacle, and preventing the obstacle from scratching or hitting the battery 100. The protection assembly 3 and the vehicle body are surrounded to form a first accommodating space, which can be used to accommodate the battery 100 to prevent the battery 100 from being scratched and damaged due to exposure.

[0054] The protection assembly 3 includes a protection plate 31, which is movably connected to the vehicle body between a first position and a second position along the vehicle body height direction. The protection plate 31 at the first position is close to the battery 100, and the protection plate 31 at 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.

[0055] The control module is in communication connection with the detection component 1. When the detection component 1 detects an obstacle, it sends a signal to the control module, and then the control module 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 that an obstacle passes through the bottom of the vehicle body, the control module controls the flip unit 21 to flip, so that the flip unit 21 collides with the obstacle and buffers the obstacle, reducing the vertical height of the obstacle, so that the obstacle cannot contact the battery 100 or reduces the contact with the battery 100. At the same time, the control module controls the protective plate 31 to move from the first position close to the battery 100 to the second position separated from the battery 100. The vehicle body continues to move forward, and the obstacle will pass through the buffer component 2 and the protective component 3 in turn. By colliding with the obstacle, the flip unit 21 can reduce the impact force of the obstacle on the battery 100 and prevent the obstacle from damaging the battery 100 due to excessive impact force. When the obstacle is located 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 preventing the battery 100 from being impacted when the obstacle hits the protective plate 31, thereby 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 fitted.

[0058] Alternatively, if Figure 1As shown, the protection assembly 3 also includes a driving unit 32. The driving 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 protection plate 31 and directly 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 protection 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 that an obstacle passes through the bottom of the vehicle body, the control module sends an instruction 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, so that the first magnet 321 and the second magnet 322 are separated, 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 is deformed and elongated, and a buffer space is formed between the protective plate 31 and the battery 100 at this time, so as to avoid the impact of the obstacle on the protective plate 31 when it hits the battery 100, improve the protection strength of the battery 100, and prevent the battery 100 from being damaged. When the obstacle passes through the battery 100, the control module sends an instruction and controls the electromagnet to be powered off, at which 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 setting 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 item with elastic recovery characteristics such as an elastic rope can also 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, if Figure 3 As shown, the protective plate 31 includes 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, and the guide plate 312 extends upward relative to the bottom plate 311 and in a direction close to the buffer assembly 2. When there is an obstacle at the bottom of the vehicle body, the end of the flip unit 21 close to 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 cooperates with the guide plate 312 to guide the obstacle, so that the obstacle moves from under the flip unit 21 to under the protective plate 31, preventing the obstacle from hitting the bottom 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 an arc transition, which can avoid stress concentration in the transition area and prevent the protective plate 31 from breaking and failing. In addition, the arc transition connection can prevent the formation of sharp edges and corners that collide with obstacles and wear, thereby extending the service life of the protective plate 31.

[0064] Alternatively, if Figure 1 As shown, the protection component 3 also includes two first connecting plates 33. Both first connecting plates 33 are connected to the bottom of the vehicle body and are arranged 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 one 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 arranged 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 protection plate 31 to move to the second position, so that the protection plate 31 always remains stable, ensuring that there is sufficient buffer space between the battery 100 and the protection plate 31, avoiding the reduction of the buffer space due to the tilting and displacement of the protection plate 31, and ensuring the protection 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 resetting 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 resetting members 323 according to actual needs, and each first magnet 321 may be provided with one second magnet 322.

[0066] Alternatively, if Figure 3 and Figure 4As shown, the buffer assembly 2 also includes a telescopic driving member 22 and a second reset member 23. The rotation center of the flip unit 21, the telescopic driving member 22 and the second reset member 23 are arranged at intervals along the front-rear direction of the vehicle body. The shell 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, and the control module is communicatively connected with the telescopic driving member 22. One end of the second reset member 23 is connected to the bottom of the vehicle body, and the other end is connected to the flip unit 21. The second reset member 23 can suspend the flip unit 21 at 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 to move downward. The flip unit 21 is rotationally connected to the vehicle body, 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 the height where it collides with the obstacle, the control module drives the telescopic driving member 22 to close. The flip unit 21 collides with the obstacle, which can reduce the vertical height of the obstacle and reduce the contact area between the obstacle and the battery 100. When the obstacle passes through the flip unit 21, driven by the second reset member 23, the flip unit 21 has a tendency to rotate upward, preventing the obstacle from having a rigid impact with the flip unit 21 and avoiding damage to the flip unit 21.

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

[0070] Alternatively, if 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 arranged on the second connecting plate 24, the telescopic driving member 22 and the telescopic member 25 are connected to the vehicle body through the second connecting plate 24, and 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 drives the telescopic drive member 22 to open. Under the cooperation of the telescopic drive member 22 and the telescopic member 25, the flip unit 21 will rotate around the width direction of the vehicle body with the output end of the second drive member as the rotation center. At the same time, the telescopic drive member 22 will slide along the flip unit 21, and the flip unit 21 will drive the telescopic member 25 to extend. When the flip unit 21 flips to the height of colliding with the obstacle, the control module drives the telescopic drive member 22 to close, and the flip unit 21 remains flipped.

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

[0073] Alternatively, if 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, 10 are exemplarily provided in this embodiment) arranged on the mounting plate 12. The third connecting plate 11 is connected to the bottom of the vehicle body, and the mounting plate 12 is rotatably connected to the third connecting plate 11 around the width direction of the vehicle body. When an obstacle passes through the bottom of the vehicle body, the obstacle will hit the mounting plate 12 and the pressure detection member 13, and the mounting plate 12 will rotate toward the buffer assembly 2 under the action of the obstacle, thereby avoiding the obstacle and facilitating the passage of the obstacle.

[0074] In addition, one or more pressure detection components 13 are connected to the control module. When an obstacle hits the pressure detection component 13, the pressure detection component 13 sends a signal to the control module, and the control module receives the signal sent by the pressure detection component 13 to obtain the measured pressure value. When the pressure value exceeds the preset pressure value, 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.

[0075] Exemplarily, 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 protection plate 31 to move from the first position to the second position.

[0076] Alternatively, if 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, and 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 accommodating 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 for carrying the first buffer member 213 and a stored state for being stored at one end of the flip plate 211. When an obstacle is located under the flip unit 21, the control module controls the wrapping member 212 to switch from the flattened state to the stored state, so that the first buffer member 213 is separated from the wrapping member 212 and the flip plate 211 and falls and is wrapped 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 component 3.

[0077] Furthermore, if Figure 4As shown, the flip unit 21 further 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 contacts and collides with an obstacle, and the second buffer 214 can absorb the impact force generated by the collision, thereby reducing the impact pressure of the obstacle and preventing the obstacle from hitting and 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] Exemplarily, the first buffer layer and the second buffer layer are both rubber cushion layers. In other embodiments, according to actual needs, a sponge cushion layer or other flexible cushioning material can be selected as the first buffer layer and the second buffer layer, or a rubber cushion layer can be selected as the first buffer layer and a sponge cushion layer can be selected as the second buffer layer, which 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 the preset pressure value, the control module will send a command to the reeling mechanism, and the reeling mechanism will reel in the traction member 215, so that the traction member 215 drives the wrapping member 212 to be wound on the reeling mechanism, so that the wrapping member 212 is wound to a storage state, and the first buffer member 213 separates from the wrapping member 212 and falls and wraps on 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, if Figure 1 , Figure 6 and Figure 7As shown, the flip unit 21 also includes a connecting piece 216. One end of the traction piece 215 is connected to the wrapping piece 212 through the connecting piece 216, and the connecting piece 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, and the connecting seat 217 is provided with a third magnet 2172, and a sliding cavity 2171 is opened. A limiting piece 2173 and a third reset piece (not shown in the figure) are provided in the sliding cavity 2171, and the third reset piece is compressed and limited between the inner wall of the sliding cavity 2171 and the limiting piece 2173. The limiting piece 2173 has a locking position for being inserted into the limiting groove and an unlocking position for being disengaged from the limiting groove. When the stopper 2173 is inserted into the locking position of the stopper groove, 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 the preset pressure value, the control module controls the third magnet 2172 to be energized, so that a magnetic field is generated around the third magnet 2172, and an attraction force is generated on the stopper 2173, so that the stopper 2173 slides from the locking position to the unlocking position along the sliding cavity 2171, so that the connecting member 216 is separated from the connecting seat 217, and the winding mechanism winds 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, and under the push of the third reset member, the stopper 2173 will slide out of the sliding cavity 2171, so that the connecting member 216 can be installed again.

[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 more comprehensive detection of obstacles passing through the battery 100, fully protecting the battery 100 and preventing the battery 100 from being damaged.

[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 to rotate toward the buffer assembly 2, the spring shaft can reduce the vibration between the third connecting plate 11 and the mounting plate 12, and buffer the mounting plate 12 to prevent the mounting plate 12 from rotating and hitting the third connecting plate 11. In addition, when the obstacle passes through the detection assembly 1, the spring shaft can drive the mounting plate 12 to rotate toward the front of the vehicle body and reset, so as to facilitate the detection of the obstacle again.

[0087] Embodiment 2

[0088] This embodiment provides a battery protection method, using the battery protection device as described in the first embodiment. The detection component 1 includes a pressure detection member 13, and the pressure detection member 13 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 member 13 is obtained, the pressure value is sent to the control module, and it is determined whether the pressure value is greater than the preset pressure value. When the detected pressure value reaches the preset pressure value, the control module controls the flip unit 21 to rotate so that the flip unit 21 collides with the obstacle, thereby reducing the vertical height of the obstacle and reducing the pressure value of the obstacle, so that the impact force of the obstacle is reduced; at the same time, the control module also controls the protective plate 31 to move from the first position to the second position, so that a buffer space is generated between the protective plate 31 and the battery 100, and a movable range is provided for the protective plate 31, so as to avoid the battery 100 from being impacted when the obstacle 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 through the bottom of the vehicle body smoothly without impacting the battery 100.

[0090] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope 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 arranged at intervals on the front side of the battery (100), and the detection component (1) is used to detect whether there is an obstacle passing under the vehicle body; A buffer component (2) is arranged between the detection component (1) and the battery (100), the buffer component (2) comprising a flip unit (21), the flip unit (21) being rotatably connected to the vehicle body around the 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 component (3) is formed with the vehicle body to form a first accommodation space for accommodating the battery (100); the protection component (3) comprises 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) at 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 comprises a driving unit (32), the driving unit (32) comprising 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 of the first reset member (323) 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 component (3) further comprises two first connecting plates (33), both of which are connected to the bottom of the vehicle body and are 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 shell 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 communicatively connected to 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; a shell 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 a width direction of the vehicle body; the wrapping member (212) and the flip plate (211) enclose a second accommodation 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 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 comprises a second buffer member (214), wherein the second buffer member (214) is arranged between the flip plate (211) and the first buffer member (213), and is attached to the flip plate (211); and / or, The flip unit (21) further comprises a winding mechanism and a traction member (215); the winding mechanism is arranged on the flip 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 winding mechanism is used to wind the wrapping member (212) to the storage state by winding the traction member (215).

8. The battery protection device according to claim 7, characterized in that: The flip unit (21) further comprises a connecting piece (216), one end of the traction piece (215) is connected to the wrapping piece (212) via the connecting piece (216), and the connecting piece (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 provided, a limiting piece (2173) and a third reset piece are provided in the sliding cavity (2171), the third reset piece is compressed and limited between the inner wall of the sliding cavity (2171) and the limiting piece (2173), the limiting piece (2173) and the third magnet (2172) are separably magnetically attracted, and the limiting piece (2173) has a locking position for being inserted into the limiting groove and an unlocking position for being separated 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 locking position and the unlocking 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 to collide 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 flip unit (21) to rotate and controls the protection plate (31) to move from the first position to the second position.

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