Power battery connector protection device and vehicle

Abstract

The present application discloses a power battery connector protection device and a vehicle, which solves the technical problem of the existing technology that the battery pack has a high risk of being squeezed in the event of a collision. The power battery connector protection device includes a vehicle body frame, a battery pack, and a protective cover; the battery pack includes a box body and a connector connected to the box body, and the box body is provided with a first positioning structure; the protective cover is located between the box body and the front subframe of the vehicle, and is connected to the vehicle body frame, and the protective cover is provided with a guide structure for guiding the front subframe to move toward the rear and downward, and the protective cover is provided with a protective cavity for accommodating the connector, and the protective cover is provided with a second positioning structure; wherein the first positioning structure and the second positioning structure cooperate with each other, and along the length direction of the vehicle, the first positioning structure and the second positioning structure are spaced apart. The power battery connector protection device provided in the present application reduces the risk of the battery pack being squeezed by the protective cover.

Description

Technical Field

[0001] The present application belongs to the technical field of power battery connector protection, and specifically relates to a power battery connector protection device and a vehicle. Background Art

[0002] A power battery is a high-voltage component that provides power to the vehicle through a combination of cells connected in series and parallel. It is equipped with connectors and connected to electrical devices via wiring harnesses. Power battery connectors include high-voltage and low-voltage connectors, with high-voltage connectors further divided into positive and negative connectors.

[0003] At present, whether electric vehicles are being developed forward or modified based on traditional fuel vehicles, the power batteries are mostly arranged under the chassis of the vehicle. In order to prevent the connectors from being hit by large obstacles, flying stones, or scratched in the event of a bottoming accident during the vehicle's driving, a protective plate will be arranged under the connector. The protective plate is connected to the front subframe and the battery pack box.

[0004] In the event of a head-on collision, the front subframe of this structure will transfer the collision force from the fender bracket to the battery pack, and the battery pack is at risk of being squeezed. Summary of the Invention

[0005] In order to solve the technical problem that the current connector protection structure is directly connected to the front subframe and the battery pack box, which will squeeze the battery pack in the event of a head-on collision, the present application provides a power battery connector protection device and a vehicle.

[0006] In a first aspect of the present application, a power battery connector protection device is provided, comprising:

[0007] body frame;

[0008] A battery pack includes a box body and a connector connected to the box body, wherein the box body is provided with a first positioning structure;

[0009] a protective cover, located between the box and the front subframe of the vehicle and connected to the vehicle body frame, the protective cover being provided with a guide structure for guiding the front subframe to move rearward and downward, the protective cover being provided with a protective cavity for accommodating the connector, and the protective cover being provided with a second positioning structure;

[0010] The first positioning structure and the second positioning structure cooperate with each other, and are spaced apart from each other along the length direction of the vehicle.

[0011] In some embodiments, one of the first positioning structure and the second positioning structure is a positioning slot, and the other is a positioning protrusion, the positioning protrusion is located in the positioning slot, and along the length direction of the vehicle, the positioning protrusion and the positioning slot are spaced apart.

[0012] In some embodiments, the battery pack further includes a plate connected to the box, the plate covers the front end surface of the box, the connector is connected to the plate, and the plate is provided with the first positioning structure.

[0013] In some embodiments, the first positioning structure is a positioning groove, the plate includes a plate body and a ridge assembly, the ridge assembly includes two ridges spaced apart, both ridges are connected to the plate body, and the plate body and the two ridges together form the positioning groove.

[0014] In some embodiments, the thickness of the positioning protrusion is smaller than the wall thickness of the body of the protective cover.

[0015] In some embodiments, a shock-absorbing layer is further included that is coated on the positioning protrusion, and the shock-absorbing layer is located in the positioning groove.

[0016] In some embodiments, two of the first positioning structure and the second positioning structure are provided, and are arranged in a one-to-one correspondence, and the two second positioning structures are located on both sides of the protective cover along the vehicle width direction;

[0017] An outward protrusion is provided at the bottom of the protective cover, and the protrusion is spaced apart from the box body.

[0018] In some embodiments, the guiding structure is a guiding surface, the connector is tilted, and the tilt direction of the connector is consistent with the tilt direction of the guiding surface.

[0019] In some embodiments, the device further includes a controller and a sensor for sensing its own position and angle, wherein the sensor is mounted on the protective cover and electrically connected to the controller.

[0020] In a second aspect of the present application, a vehicle is provided, comprising the aforementioned protective device.

[0021] According to the power battery connector protection device provided in the embodiment of the present application, it includes a vehicle body frame, a battery pack, and a protective cover; the battery pack includes a box body and a connector connected to the box body, and the box body is provided with a first positioning structure; the protective cover is located between the box body and the front subframe of the vehicle, and is connected to the vehicle body frame, the protective cover is provided with a guide structure for guiding the front subframe to move toward the rear and downward, the protective cover is provided with a protective cavity for accommodating the connector, and the protective cover is provided with a second positioning structure; wherein the first positioning structure and the second positioning structure cooperate with each other, and the first positioning structure and the second positioning structure are arranged at intervals along the length direction of the vehicle.

[0022] The shield features a guide structure for guiding the front subframe downward and rearward. In the event of a head-on collision, the front subframe moves backward and, guided by the structure, beneath the battery pack, preventing it from being crushed. The shield also includes a protective cavity for connectors, providing protection for them.

[0023] The housing is equipped with a first positioning structure, and the shield is equipped with a second positioning structure. When the shield is mounted on the vehicle body frame, the first and second positioning structures cooperate to position the shield, facilitating installation. The first and second positioning structures are spaced apart along the length of the vehicle. This reduces the risk of the battery pack being crushed if the shield deforms in the event of a collision.

[0024] Therefore, the setting of the protective cover guide structure enables the front subframe to move along a set trajectory, that is, toward the lower rear of the battery pack, in the event of a collision. The protective cover itself can also be deformed as a guide structure. The design of the first positioning structure and the second positioning structure can reduce the squeezing of the battery pack on the basis of achieving the positioning of the protective cover, thereby reducing the risk of battery pack deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A bottom view of a power battery connector protection device in one or more embodiments of the present application is shown.

[0026] Figure 2 Shown Figure 1 Axonometric drawing of the battery pack, protective cover and front subframe.

[0027] Figure 3 Shown Figure 1 A partial exploded view of the power battery connector protection device.

[0028] Figure 4 Shown Figure 1 A partial enlarged view of the battery pack.

[0029] Figure 5 Shown Figure 1A bottom view of the battery pack in the horizontal plane.

[0030] Figure 6 Shown Figure 1 Schematic diagram of the structure of the protective cover.

[0031] Description of reference numerals:

[0032] 100 - Front subframe, 200 - Protective cover, 210 - Bottom plate, 211 - Guide surface, 212 - Protrusion, 213 - Connecting flange, 214 - Precision positioning pin, 215 - Connecting hole, 220 - Side plate, 221 - Second positioning structure, 222 - Positioning protrusion, 230 - Shock-absorbing layer, 240 - Sensor, 250 - Threaded component. 300 - Battery pack, 310 - Housing, 311 - Front crossbeam, 320 - Plate, 321 - First positioning structure, 322 - Protrusion, 323 - Positioning slot, 330 - Connector. 400 - Body frame, 410 - Crossbeam lower plate. 500 - Wiring harness. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to understand the present application more clearly, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0034] The first embodiment of the present application provides a power battery connector protection device, which can guide the front subframe to move toward the rear and downward to avoid squeezing the battery pack; at the same time, the installation of the protection device is more convenient.

[0035] See also Figure 1 、 Figure 2 as well as Figure 3 The power battery connector 330 protection device provided in this application includes a vehicle body frame 400 , a battery pack 300 and a protective cover 200 .

[0036] The battery pack 300 includes a housing 310 and a connector 330 connected to the housing 310. The protective cover 200 is located between the housing 310 and the front subframe 100 of the vehicle and is connected to the vehicle body frame 400. In other words, the front subframe 100, the protective cover 200, and the housing 310 are arranged in sequence, and the protective cover 200 is fixed by the vehicle body frame 400. The protective cover 200 is provided with a guide structure for guiding the front subframe 100 to move toward the rear and downward. In this way, in the event of a head-on collision, the front subframe moves backward and, under the guidance of the guide structure, moves to the bottom of the battery pack 300, preventing the battery pack 300 from being squeezed. The protective cover 200 is provided with a protective cavity for accommodating the connector 330 to protect the connector 330.

[0037] See also Figure 3 as well as Figure 4 The housing 310 is provided with a first positioning structure 321, and the protective cover 200 is provided with a second positioning structure 221. When the protective cover 200 is mounted on the vehicle body frame 400, the first positioning structure 321 and the second positioning structure 221 cooperate to position the protective cover 200, facilitating installation of the protective cover 200. The first positioning structure 321 and the second positioning structure 221 are spaced apart along the length of the vehicle. This reduces the risk of deformation of the protective cover 200 in the event of a collision, thereby reducing the risk of compression of the battery pack 300.

[0038] Regarding the structure of the box body 310 of the battery pack 300, in some embodiments, the box body 310 of the battery pack 300 is provided with a first positioning structure 321 for cooperating with the second positioning structure 221 of the protective cover 200 to achieve positioning of the protective cover 200. In other embodiments, please refer to Figure 4 The battery pack 300 also includes a plate 320, which is connected to the box body 310. The plate 320 covers the front end surface of the box body 310, and the connector 330 is connected to the plate 320, that is, the connector 330 is fixed by the plate 320. The plate 320 is provided with a first positioning structure 321. By additionally arranging the plate 320 on the box body 310 of the battery pack 300, the collision force transmitted to the battery pack 300 during the collision can be dispersed through the plate 320, thereby reducing the local pressure and thus reducing the risk of pressurizing the battery pack 300.

[0039] When a plate 320 is disposed on the housing 310 of the battery pack 300, the housing 310, such as the front crossbeam 311 of the housing 310, is provided with a through-hole for the connector 330 to extend therethrough. The plate 320 is provided with a mounting hole for the connector 330. The connector 330 extends out of the housing 310 through the through-hole and is mounted in the mounting hole of the plate 320. The connector end of the connector 330 extends from the plate 320 into the protective cavity of the protective cover 200. In a specific implementation, the plate 320 and the housing 310, such as the front crossbeam 311 of the housing 310, can be connected by bolts, or the plate 320 and the housing 310 can be riveted.

[0040] In some embodiments, see Figure 3 The central axis of the mounting hole of the plate 320 is tilted, and the end of the mounting hole closer to the front subframe 100 is higher than the end closer to the battery pack 300. This allows the plugging direction of the connector 330 to be tilted, making it easier for the wiring harness 500 to pass through the gap between the battery pack 300 and the front subframe to the top of the rear crossbeam of the front subframe 100, thereby meeting the wiring harness 500 layout requirements.

[0041] Regarding the specific structure of the first positioning structure 321 of the box body 310 and the second positioning structure 221 of the protective cover 200, in some embodiments, one of the first positioning structure 321 and the second positioning structure 221 is a positioning groove 323 and the other is a positioning protrusion 222, that is, see Figure 4 The first positioning structure 321 is a positioning slot 323, see Figure 3 The second positioning structure 221 is a positioning protrusion 222, or the first positioning structure 321 is the positioning protrusion 222, and the second positioning structure 221 is a positioning slot 323. The positioning protrusion 222 is located in the positioning slot 323. The positioning slot 323 and the positioning protrusion 222 both extend in a length direction perpendicular to the vehicle body, for example, in a height direction. In this way, when installing the protective cover 200, the positioning protrusion 222 is matched with the positioning slot 323, and then the protective cover 200 is moved along the extension direction of the positioning slot 323 until the protective cover 200 is tightly against the vehicle body frame 400. At this time, the vehicle body frame 400 and the protective cover 200 can be connected by a connecting piece. Along the length direction of the vehicle body, the positioning protrusion 222 and the positioning slot 323 are spaced apart. In this way, there is a buffer space between the protective cover 200 and the box body 310 in the event of a collision, thereby reducing the risk of the battery pack 300 box body 310 being squeezed. In other embodiments, one of the first positioning structure 321 and the second positioning structure 221 is a positioning hole and the other is a positioning pin. The positioning pin is inserted into the positioning hole to position the protective cover 200 so as to connect the protective cover 200 to the vehicle body frame 400.

[0042] In some embodiments, see Figure 3 as well as Figure 4The positioning slot 323 and the positioning protrusion 222 extend in the height direction, which can realize the positioning of the protective cover 200 in the X direction and the Y direction. In other embodiments, the positioning slot 323 and the positioning protrusion 222 can also extend in the first direction, and the first direction has an angle with both the X direction and the Y direction, which can also realize the positioning of the protective cover 200.

[0043] In addition to being spaced apart from the positioning slot 323 in the length direction of the vehicle body, in some embodiments, the positioning protrusion 222 can also be spaced apart from the positioning slot 323 in other directions, such as along the width direction of the vehicle body, to position the protective cover, and when the protective cover 200 collides and deforms, there is a buffer gap between it and the slot wall of the positioning slot 323, further reducing the risk of the battery pack 300 being squeezed.

[0044] In the case where the plate 320 is provided with a positioning slot 323 as the first positioning structure 321, in some embodiments, see Figure 4 The plate 320 may include a plate body and a ridge assembly. The ridge assembly includes two spaced ridges 322, both connected to the plate body. The plate body and the two ridges 322 together form a positioning slot 323. Specifically, a protrusion is provided on the side of the plate 320 near the front subframe 100, and a positioning slot 323 is provided on the protrusion. This structural design reduces the strength of the plate 320 at the ridge 322 assembly. When the protective cover 200 moves backward and comes into contact with the plate 320, the ridge 322 assembly is easily broken and absorbs energy, further reducing the risk of the battery pack 300 being squeezed. In other embodiments, the plate body of the plate 320 includes a positioning slot 323, which can also serve as the first positioning structure 321 and cooperate with the positioning protrusion 222 to position the protective cover 200 during installation.

[0045] In some embodiments, the thickness of the positioning protrusion 222 is less than the wall thickness of the protective cover 200 body. This makes the positioning protrusion 222 weaker than the protective cover 200 body. In the event of a collision, the positioning protrusion 222 easily deforms and absorbs energy, preventing compression of the battery pack 300. In some embodiments, the head of the positioning protrusion 222 extends into the positioning slot 323, while the base of the positioning protrusion 222 is located outside the positioning slot 323. Because the direction of the collision force may not be entirely along the length of the vehicle body, but may include a component of the collision force along the width of the vehicle body, the base of the positioning protrusion 222 may rotate around the head of the positioning protrusion 222 under the action of this component, causing it to break at the base of the protrusion, thereby protecting the battery pack 300.

[0046] See also Figure 5The protective device also includes a shock-absorbing layer 230 covering the positioning protrusion 222. The shock-absorbing layer 230 is located in the positioning groove 323 and can not only absorb shock but also provide buffering in the event of a collision to protect the battery pack 300. In a specific implementation, the shock-absorbing layer 230 can be obtained by wrapping the positioning protrusion 222 with foam or by using a rubber material.

[0047] In some embodiments, see Figure 5 There are two first positioning structures 321 and two second positioning structures 221, and they are arranged one by one. The two second positioning structures 221 are located on both sides of the protective cover 200 along the width direction of the vehicle, that is, there are two positioning protrusions 222 and two positioning grooves 323. The two positioning protrusions 222 are respectively located in the corresponding positioning grooves 323, which can improve the stability of the positioning process of the protective cover 200.

[0048] For specific implementation, please refer to Figure 6 The protective cover 200 is provided with a side opening facing the battery pack 300 and a top opening facing upward. Both the side opening and the top opening are connected to the protective cavity, and the side opening is connected to the top opening. In this way, during the installation of the protective cover 200, the protective cover 200 moves toward the vehicle body frame 400, allowing the connector 330 to enter the protective cavity through the top opening. The provision of the side opening can avoid interference with the connector 330. The two second positioning structures 221 are both located at the side openings of the protective cover 200. During the movement of the protective cover 200 toward the vehicle body frame 400, the first positioning structure 321 cooperates with the second positioning structure 221 so that the upper end of the positioning protrusion 222 first enters the positioning groove 323. As the protective cover 200 continues to move toward the vehicle body frame 400, the middle and lower ends of the positioning protrusion 222 gradually enter the positioning groove 323 until the top opening of the protective cover 200 abuts the bottom of the vehicle body frame 400. At this time, the protective cover 200 is connected to the vehicle body frame 400 to complete the installation of the protective cover 200. In other embodiments, there are four first positioning structures 321 and four second positioning structures 221, and they are arranged in one-to-one correspondence. The four first positioning structures 321 are divided into two groups, each group includes two first positioning structures 321, and the two groups of first positioning structures 321 are arranged in sequence along the height direction, which can also achieve the positioning of the protective cover 200.

[0049] See also Figure 6The bottom of the protective cover 200 is provided with a downward-facing protrusion 212, which is spaced apart from the housing 310. In the event of a collision, the protrusion 212 abuts the housing 310, increasing the contact area between the protective cover 200 and the battery pack 300, dispersing the collision force, and reducing the risk of the battery pack 300 being crushed. In a specific implementation, the protrusion 212 can be formed by flanging the protective cover 200, or the protrusion 212 can be connected to the main body of the protective cover 200 by welding or other means. When two first positioning structures 321 and two second positioning structures 221 are provided, the height of the protrusion 212 is lower than the two first positioning structures 321, so that the protrusion 212 is spaced apart from the main body of the plate 320, reducing the risk of the battery pack 300 being crushed. The protrusion 212 can extend in the width direction of the vehicle body. The protrusion 212 and the two second positioning structures 221 together form a side opening for inserting the connector 330.

[0050] See also Figure 3 The guiding structure is a guiding surface 211, that is, the protective cover 200 is provided with a guiding surface 211. The height of the guiding surface 211 on the side close to the front sub-frame 100 is higher than that on the side close to the battery pack 300. Under the action of the guiding surface 211, the front sub-frame 100 can move to the bottom of the battery pack 300 with the guiding surface 211 in the event of a collision, thereby protecting the battery pack 300. In some embodiments, please continue to refer to Figure 3 The connector 330 is tilted, and the tilt direction of the connector 330 is consistent with the tilt direction of the guide surface 211. This can not only meet the requirements of the wiring harness 500 connected to the connector 330 being distributed upward to the top of the rear crossbeam of the front subframe 100, but also arrange the guide surface 211 for guiding the collision motion trajectory of the front subframe 100, while also saving space and improving space utilization.

[0051] As can be seen from the above, the positioning protrusion 222 and the positioning slot 323 are not completely matched, so the positioning protrusion 222 and the positioning slot 323 can achieve rough positioning in the X and Y directions during the installation of the protective cover 200. In some embodiments, please refer to Figure 4 as well as Figure 6 The protective cover 200 is also provided with a precision positioning pin 214, and the vehicle body frame 400 is provided with a precision positioning hole. The precision positioning pin 214 can be inserted into the precision positioning hole to achieve precise positioning of the protective cover 200 and the vehicle body frame 400 in the X and Y directions. The precision positioning structure of the precision positioning pin 214 is combined with the coarse positioning structure of the positioning protrusion 222 and the positioning groove 323, which shortens the positioning time during the installation of the protective cover 200 and improves the positioning accuracy.

[0052] For specific implementation, please refer to Figure 6There may be two precision positioning pins 214 , which are distributed on both sides of the protective cover 200 along the width direction of the vehicle body, specifically on both sides of the top opening along the width direction of the vehicle body, to improve positioning accuracy.

[0053] Please continue reading Figure 6 The protective cover 200 includes a bottom plate 210 and two side plates 220. The two side plates 220 are respectively connected to both sides of the bottom plate 210 along the width direction of the vehicle body. The two side plates 220 and the bottom plate 210 together form a protective cavity. The plate surface of the bottom plate 210 facing the ground forms a guide surface 211. The end of the bottom plate 210 close to the battery pack 300 is bent to form a protrusion 212 that contacts the battery pack 300 box 310 in the event of a collision. The end of the side plate 220 close to the battery pack 300 forms a second positioning structure 221. A connecting flange 213 is provided on the side of the side panel 220 proximal to the vehicle body frame 400. A precision locating pin 214 is located on the connecting flange 213. The connecting flange 213 also has a connecting hole 215 for connecting to the lower crossbeam plate 410 of the vehicle body frame 400. A screw 250 passing through the connecting hole 215 connects the protective cover 200 to the vehicle body frame 400. In other words, the connecting flange 213 is provided with both a precision locating structure and a connecting structure, both of which are arranged on the connecting flange 213, thus occupying less space. In specific implementations, a clearance opening, for example, can also be provided on the side panel 220 as needed.

[0054] See also Figure 6The protective device also includes a controller and a sensor 240 for sensing its own position and angle. Sensor 240 is mounted on the protective cover 200 and electrically connected to the controller. In the event of a bottom collision, obstacles or flying stones may collide with the protective cover 200. If the collision is severe, the protective cover 200 will deform, causing the position and angle of sensor 240 to change. Because sensor 240 can sense its own position and angle, the controller can obtain the position change and angle change of sensor 240. After receiving the position change and angle change signals from sensor 240, the controller makes a judgment. If the position change exceeds a first set displacement and / or the angle change exceeds the first set angle change, the connector 330 is considered to have been severely damaged. In this case, the high voltage power supply to the entire vehicle can be disconnected to ensure driving safety. If the position change rate does not exceed the first set displacement and the angle change rate does not exceed the first set angle change rate, the connector 330 is considered to have been slightly damaged and can still be used for a short period of time. In this case, the driver and passengers can be reminded to continue driving to a maintenance point for repair. That is to say, the damage degree of the connector 330 is identified by the sensor 240 and the protective cover 200. If the damage degree is high, the whole vehicle is powered off to improve driving safety. If the damage degree is low, the vehicle can continue to drive.

[0055] A second embodiment of the present application provides a vehicle. In the event of a collision, the protective cover 200 can not only protect the connector 330, but also guide the front subframe 100 to move downward toward the battery pack 300 box 310, thereby reducing the risk of the battery pack 300 being squeezed. In addition, the protective cover 200 is easy to install and position, and can buffer the collision energy, further reducing the risk of the battery pack 300 being squeezed.

[0056] The vehicle provided in this application includes the protective device of any embodiment of the first aspect. The controller includes a vehicle controller and a battery management controller, and the vehicle controller is electrically connected to the sensor 240 and the battery management controller. The vehicle controller is used to receive the position change and angle change of the sensor 240, and when the position change exceeds a first set displacement and / or the angle change exceeds a first set angle change, send a signal to the battery management controller, and the battery management controller controls the vehicle to cut off power. When the position change rate does not exceed the first set displacement and the angle change rate does not exceed the first set angle change rate, the vehicle controller reminds the driver and passengers that they can continue driving to a maintenance point for repair.

[0057] This application has at least the following advantages:

[0058] (1) The protective cover is provided with a guide surface to guide and change the movement path of the front subframe after a head-on collision, thereby reducing the risk of the front subframe squeezing the connectors and the battery pack box.

[0059] (2) The first positioning structure of the battery pack and the second positioning structure of the protective cover improve the convenience of installing the protective cover, solve the problem of vibration, collision and abnormal noise of the protective cover and the battery pack during vehicle operation, and reduce the risk of the battery pack being squeezed.

[0060] (4) The protective cover is only fixed to the vehicle body frame, and the battery pack box will not be damaged even in the event of a minor collision.

[0061] (5) The protective cover is equipped with a sensor that can actively identify the degree of damage to the connector when the bottom is hit, thereby improving vehicle driving safety.

[0062] In this application, 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. Moreover, 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.

[0063] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0064] In this application, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0065] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0066] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A power battery connector protection device, characterized in that: include: body frame; A battery pack includes a box, a plate, and a connector connected to the plate, wherein the plate is connected to the box and covers the front end surface of the box, and the plate is provided with a first positioning structure; a protective cover, located between the box and the front subframe of the vehicle and connected to the vehicle body frame, the protective cover being provided with a guide structure for guiding the front subframe to move rearward and downward, the protective cover being provided with a protective cavity for accommodating the connector, and the protective cover being provided with a second positioning structure; shock-absorbing layer; Among them, among the first positioning structure and the second positioning structure, one is a positioning groove and the other is a positioning protrusion, the shock-absorbing layer is covered on the positioning protrusion, the positioning protrusion and the shock-absorbing layer are both located in the positioning groove, and the positioning protrusion and the positioning groove are spaced apart along the length direction of the vehicle.

2. The power battery connector protection device according to claim 1, characterized in that: The first positioning structure is a positioning groove, the plate includes a plate body and a ridge assembly, the ridge assembly includes two ridges spaced apart, both ridges are connected to the plate body, and the plate body and the two ridges together form the positioning groove.

3. The power battery connector protection device according to claim 1, characterized in that: The thickness of the positioning protrusion is smaller than the wall thickness of the body of the protective cover.

4. The power battery connector protection device according to any one of claims 1 to 3, characterized in that: There are two of each of the first positioning structure and the second positioning structure, and they are arranged in a one-to-one correspondence, and the two second positioning structures are located on both sides of the protective cover along the vehicle width direction; An outward protrusion is provided at the bottom of the protective cover, and the protrusion is spaced apart from the box body.

5. The power battery connector protection device according to any one of claims 1 to 3, characterized in that: The guiding structure is a guiding surface, the connector is arranged at an angle, and the inclination direction of the connector is consistent with the inclination direction of the guiding surface.

6. The power battery connector protection device according to any one of claims 1 to 3, characterized in that: It also includes a controller and a sensor for sensing its own position and angle. The sensor is installed on the protective cover and is electrically connected to the controller.

7. A vehicle, characterized in that: The protective device comprises the protective device according to any one of claims 1 to 6.

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