Battery pack protection device and vehicle

Abstract

The utility model provides a battery pack protection device and a vehicle, the battery pack protection device comprises a protection plate, the protection plate is used for being movably mounted on a doorsill beam so as to be switched between a first mode and a second mode, in the first mode, the protection plate is retracted into the vehicle, the protection plate extends to the position below a battery pack from the doorsill beam, and the protection plate extends to the position below the battery pack from the doorsill beam; and a second mode in which the guard plate extends out of the vehicle to provide a user with a foot rest for covering the fit clearance between the battery pack and the sill beam. On one hand, the guard plate shields the fit clearance between the battery pack and the threshold beam in the first mode, so that air below the battery pack can be guided during driving, and the aerodynamic performance of the vehicle is improved; and on the other hand, the protection plate extends out in the second mode to be used as the pedal plate, so that the functionality of the protection plate is improved, the problem that the pedal plate cannot be installed due to the fact that the protection plate occupies the space on the threshold beam is solved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicles, and in particular to a battery pack protection device and a vehicle. Background Art

[0002] The battery pack of new energy vehicles is usually installed in the chassis of the vehicle body. The sides of the battery pack are generally protected by structures such as door sill beams to improve the safety of the battery pack in side collisions.

[0003] Since there is a fit gap between the battery pack and the sill beam, in order to improve the protection performance and aerodynamic performance, some related technologies will also add a guard plate on the sill beam. The guard plate extends from the sill beam to the bottom of the fit gap. On the one hand, it blocks the fit gap to make the flow field around the chassis smoother. On the other hand, it can play a further protective role to prevent the battery pack from being damaged in a collision.

[0004] However, the guard plate will take up space on the threshold beam, making it difficult to install a pedal or other structure on the threshold beam, which is not conducive to improving the user experience. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a battery pack protection device and a vehicle, wherein the battery pack protection device helps to improve the functionality of the guard plate, thereby providing a foot pedal for the user while improving the aerodynamic performance, thereby improving the user's experience.

[0006] The battery pack protection device provided in the present application includes a guard plate, which is used to be movably mounted on a door sill beam to switch between a first mode and a second mode. In the first mode, the guard plate is retracted into the vehicle, and the guard plate extends from the door sill beam to under the battery pack to cover the fitting gap between the battery pack and the door sill beam. In the second mode, the guard plate is extended from the vehicle to provide a foot pedal for the user.

[0007] The battery pack protection device provided in the present application has at least the following technical effects: on the one hand, the guard plate blocks the fitting gap between the battery pack and the door sill beam in the first mode, thereby creating a windproof effect and preventing air from flowing into the fitting gap from below, thereby being able to guide the air under the battery pack during driving, thereby improving the aerodynamic performance of the vehicle; on the other hand, the guard plate is extended out in the second mode and used as a foot pedal, thereby improving the functionality of the guard plate and overcoming the problem that the guard plate occupies the space on the door sill beam, making it impossible to install the foot pedal, which helps to improve the user experience.

[0008] According to some embodiments of the present application, in the first mode, the protective plate abuts against the lower surface of the battery pack.

[0009] According to some embodiments of the present application, the guard plate is provided with a sealing surface and an anti-slip surface. In the first mode, the sealing surface faces upward to abut against the lower surface of the battery pack, and in the second mode, the anti-slip surface faces upward.

[0010] According to some embodiments of the present application, the guard plate can be flipped along a horizontal axis so that the sealing surface and the anti-slip surface are switched to face upward.

[0011] According to some embodiments of the present application, a sealing pad and an anti-slip pad are respectively provided on both sides of the guard plate, the sealing pad forms the sealing surface, and the anti-slip pad forms the anti-slip surface.

[0012] According to some embodiments of the present application, the battery pack protection device also includes a flexible arm, which is installed on the door sill beam, and the guard plate is installed at the output end of the flexible arm, and the flexible arm can drive the guard plate to move.

[0013] According to some embodiments of the present application, the flexible arm includes a base and an arm section, the base is fixedly mounted on the bottom of the sill beam, and the arm section is hingedly connected to the base and the guard plate respectively; the arm section includes a first arm section and a second arm section, and the base, the first arm section, the second arm section and the guard plate are hingedly connected in sequence.

[0014] According to some embodiments of the present application, in the first mode, the first arm section and the second arm section are retracted into the vehicle, and in the second mode, the first arm section extends toward the outside of the sill beam to extend from the bottom of the sill beam, and the second arm section extends obliquely upward to raise the guard plate relative to the first mode.

[0015] According to some embodiments of the present application, in the second mode, the second arm section abuts against an outer surface of the vehicle, and a shape of the second arm section matches an outer shape of the vehicle.

[0016] The vehicle provided according to the present application includes the battery pack protection device provided in the present application.

[0017] The vehicle provided in the present application includes the battery pack protection device provided in the present application, so the vehicle correspondingly possesses the beneficial effects provided by the battery pack protection device, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic diagram of the structure of the protective plate of the battery pack in some related technologies;

[0020] Figure 2 is a schematic structural diagram of a guard plate in a first mode in a battery pack protection device according to an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of a process in which a protective plate in a battery pack protection device according to an embodiment of the present application switches to a second mode;

[0022] Figure 4 is a schematic diagram of a process in which a protective plate in a battery pack protection device according to an embodiment of the present application switches to a second mode;

[0023] Figure 5 It is a schematic diagram of the structure of the protective plate in the second mode in the battery pack protection device of an embodiment of the present application.

[0024] Reference numerals:

[0025] The guard plate 110, the sealing pad 120, the anti-skid pad 130, the base 140, the first arm section 150, the second arm section 160,

[0026] Sill beam 210 , battery pack 220 , and cover 230 . DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0028] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are 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.

[0029] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0031] Reference Figure 1 In some related technologies, a guard plate 110 is provided on the vehicle's rocker beam 210. The guard plate 110 extends toward the direction where the battery pack 220 is located and shields the fitting gap between the rocker beam 210 and the battery pack 220 from the bottom of the vehicle, thereby improving the protection effect of the battery pack 220 and improving the aerodynamic performance of the bottom of the vehicle.

[0032] However, installing the guard plate 110 will occupy space on the threshold beam 210, making it impossible to install a hidden foot pedal on the threshold beam 210, which has a negative impact on the user's experience.

[0033] To this end, the present application provides a battery pack protection device, which helps to improve the functionality of the guard plate 110, so as to provide a foot pedal for the user while improving the aerodynamic performance, thereby improving the user's experience. In addition, the present application also provides a vehicle having the battery pack protection device of the present application.

[0034] For example, refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 According to an embodiment of the present application, the battery pack protection device includes a guard plate 110, which is used to be movably mounted on the door sill beam 210 to switch between a first mode and a second mode. In the first mode, the guard plate 110 is retracted into the vehicle, and the guard plate 110 extends from the door sill beam 210 to the bottom of the battery pack 220 to cover the fitting gap between the battery pack 220 and the door sill beam 210. In the second mode, the guard plate 110 is extended from the vehicle to provide a foot pedal for the user.

[0035] Figures 2 to 5 The diagram exemplarily shows the process of switching the battery pack protection device from the first mode to the second mode. It can be understood that the body of the vehicle can be divided into structural parts (such as the door sill beam 210) and the cover 230. The cover 230 forms the overall outer contour of the vehicle body. "The guard plate 110 is retracted into the vehicle" means that the projection of the guard plate 110 on the horizontal plane is within the range of the outer contour, thereby being hidden in the cover 230, and "the guard plate 110 extends from the vehicle" means that at least a portion of the guard plate 110 extends outside the cover 230, thereby allowing the user to step on it.

[0036] According to the battery pack protection device of the present application, on the one hand, the guard plate 110 blocks the fitting gap between the battery pack 220 and the door sill beam 210 in the first mode, thereby producing a windproof effect and preventing air from flowing into the fitting gap from below, thereby being able to guide the air under the battery pack 220 during driving, thereby improving the aerodynamic performance of the vehicle; on the other hand, the guard plate 110 is extended out in the second mode and used as a foot pedal, thereby improving the functionality of the guard plate 110 and overcoming the problem that the guard plate 110 occupies the space on the door sill beam 210, making it impossible to install the foot pedal, which helps to improve the user experience.

[0037] A vehicle with a battery pack protection device also has the beneficial effects provided by the battery pack protection device, which will not be elaborated here.

[0038] Optionally, in order to further improve aerodynamic performance, in some embodiments, in the first mode, the guard plate 110 abuts against the lower surface of the battery pack 220. By making the guard plate 110 contact the battery pack 220, it is possible to prevent the airflow from passing through the gap between the guard plate 110 and the battery pack 220 when the vehicle is running, so as to avoid negative disturbances (for example, the airflow causes the guard plate 110 to vibrate or generates noise in the gap, etc.).

[0039] In some embodiments, the guard plate 110 is further provided with a sealing surface, and in the first mode, the sealing surface faces upward to abut against the lower surface of the battery pack 220. Providing the sealing surface can further enhance the tightness of the contact between the guard plate 110 and the battery pack 220 and better eliminate disturbances.

[0040] The protective plate 110 may be provided with a sealing surface in different ways, as long as the requirements of the battery pack protective device are met. For example, in some embodiments, a sealing gasket 120 is provided on the protective plate 110, and the sealing gasket 120 forms a sealing surface. It is understood that the sealing gasket 120 can be elastically deformed, and when the protective plate 110 is in the first mode, the sealing gasket 120 contacts the battery pack 220, and fills and seals the gap between the battery pack 220 and the protective plate 110 under the extrusion of the battery pack 220 and the protective plate 110.

[0041] Alternatively, in some embodiments, the guard plate 110 may be composed of a rigid core plate and an elastic surface layer wrapped outside the core plate, the core plate is used to provide strength to maintain the basic shape of the guard plate 110, and the surface layer contacts and deforms with the battery pack 220 in the first mode, thereby producing a sealing effect. The surface layer may be plastic, rubber or other commonly used elastic materials, and the surface layer may be integrally combined with the core plate by injection molding or other processes, or detachably assembled with the core plate by other processes.

[0042] In some embodiments, the guard plate 110 is also provided with an anti-slip surface. In the second mode, the anti-slip surface faces upward, so that the guard plate 110 has anti-slip performance, thereby improving the user experience.

[0043] Different methods can be used to provide an anti-skid surface for the guard plate 110, as long as the requirements of the battery pack protective device are met. For example, in some embodiments, an anti-skid pad 130 is provided on the guard plate 110. It is understandable that the anti-skid pad 130 has a large coefficient of friction, thereby achieving an anti-skid effect. For example, a material with a large coefficient of friction can be used to make an anti-skid pad, or an anti-skid pad with anti-skid texture or anti-skid flocking can be made. Of course, in other embodiments, anti-skid textures can also be made directly on the guard plate 110 to form an anti-skid surface, which is not limited here.

[0044] It should be pointed out that when used as a foot pedal, impurities such as stones and dirt may remain on the surface of the guard plate 110. In weather conditions such as rain and snow, water may accumulate on the surface of the guard plate 110, all of which may cause damage to the battery pack 220. Larger stone particles may also affect the sealing effect between the guard plate 110 and the battery pack 220. Therefore, although the sealing surface and the anti-slip surface can sometimes be designed in the same way (for example, the sealing pad 120 and the anti-slip pad 130 are both made of the same elastic material with a large friction coefficient), preferably, the sealing surface and the anti-slip surface are different surfaces.

[0045] Exemplarily, in some embodiments, the sealing surface and the anti-slip surface are respectively located on two opposite sides of the guard plate 110 . For example, the sealing pad 120 and the anti-slip pad 130 may be respectively disposed on two sides of the guard plate 110 .

[0046] Correspondingly, in the battery pack protection device, the guard plate 110 can be flipped along the horizontal axis so that the sealing surface and the anti-slip surface are switched to face upward.

[0047] In other words, in the second mode, the sealing surface is the lower surface of the guard plate 110, and the anti-slip surface is the upper surface of the guard plate 110. The sealing surface is not prone to accumulation of water, stones, dirt or other impurities, thereby reducing the risk of damage to the battery pack 220. In the first mode, the sealing surface is the upper surface of the guard plate 110, and the anti-slip surface is the lower surface of the guard plate 110. The impurities originally remaining on the anti-slip surface can be automatically separated from the anti-slip surface under the influence of its own gravity and vehicle vibration, so that the anti-slip surface has a certain self-cleaning ability.

[0048] The guard plate 110 can realize the motion switching between the first mode and the second mode in a variety of ways. Optionally, in some embodiments, the battery pack protection device includes a flexible arm, which is fixedly mounted on the door sill beam 210, and the guard plate 110 is mounted on the flexible arm, and the flexible arm can drive the guard plate 110 to switch between the first mode and the second mode.

[0049] It is understandable that the flexible arm has multiple degrees of freedom of movement, thereby increasing the flexibility and range of movement of the guard plate 110. For example, in some embodiments, the flexible arm includes a base 140 and an arm section, the base 140 is fixedly mounted on the bottom of the threshold beam 210, and the arm section is hingedly connected to the base 140 and the guard plate 110.

[0050] The arm joint can provide the guard plate 110 with freedom of movement, so that the guard plate 110 can cover the fitting gap on the inner side of the vehicle in the first mode, and extend to the outside of the vehicle body to provide a foot pedal for the user in the second mode. The arm joint can also provide rotational freedom, so that the guard plate 110 can be flipped over, so that a sealing surface is used to contact the battery pack 220 in the first mode, and a non-slip surface is used for the user to step on in the second mode.

[0051] Specifically, the flexible arm can have multiple arm sections, see Figure 2 , Figure 3 , Figure 4 and Figure 5 In some implementations, the arm section includes a first arm section 150 and a second arm section 160, and the base 140, the first arm section 150, the second arm section 160 and the guard plate 110 are hingedly connected in sequence. This allows the flexible arm to have three joints (i.e., hinged parts), thereby providing higher flexibility of movement, facilitating a more sophisticated design of the movement trajectory of the flexible arm and the guard plate 110, facilitating avoiding other structures of the vehicle during movement and / or making the position of the flexible arm and the guard plate 110 when stationary (i.e., the position in the first mode and the second mode) more reasonable.

[0052] For example, refer to Figure 5 In some embodiments, in the second mode, the first arm section 150 extends outward from the sill beam 210 to extend from the bottom of the sill beam 210 , and the second arm section 160 extends obliquely upward to raise the guard plate 110 relative to the first mode.

[0053] It is understandable that in the first mode, the guard plate 110 needs to be at a relatively low horizontal height (lower than the battery pack 220) to achieve a shielding effect. If in the second mode, the guard plate 110 is still at the same height as in the first mode, the vertical distance between the guard plate 110 and the vehicle door will be too large, reducing the user's experience when lifting their legs from the guard plate 110 and stepping into the vehicle door.

[0054] By lifting the guard plate 110 to a suitable height, this problem can be overcome and the user experience can be improved. The first arm section 150 and the second arm section 160 cooperate to complete the lifting of the height of the guard plate 110 and move it outward, which can effectively avoid other parts on the vehicle (such as Figure 2 The vehicle cover 230 shown in FIG. 1 is used to avoid interference.

[0055] Of course, the number of arm sections can be further increased according to the actual design requirements (such as position and motion trajectory) of the guard plate 110, which will not be repeated here. For another example, under the premise of meeting the design requirements, the first arm section 150 and the second arm section 160 can be plates, rods or parts of other shapes and specifications, and this application does not limit this.

[0056] Further, in some embodiments, in the second mode, the second arm section 160 abuts against the outer surface of the vehicle, and the shape of the second arm section 160 matches the outer shape of the vehicle (ie, the cover 230 constituting the outer contour of the vehicle).

[0057] For example, refer to Figure 5 The second arm section 160 adopts a curvature design. Specifically, in some embodiments, the portion of the second arm section 160 close to the cover 230 has a curvature that is substantially consistent with the surface of the cover 230, thereby avoiding a sudden change in the vehicle's appearance and improving the aesthetics of the vehicle.

[0058] Of course, the adaptation referred to in this application should depend on the overall design concept of the vehicle, and is not limited to Figure 5 As shown in the design method, the second arm section 160 can adopt different design methods based on the specific design of the vehicle, as long as it can be coordinated with the surrounding cover 230 to enhance the aesthetic effect.

[0059] It should also be pointed out that Figure 2 , Figure 3 , Figure 4 and Figure 5 Only the basic main structure of the battery pack protection device is shown by way of example. The battery pack protection device also includes a driver, which is an active component and is used to drive the guard plate 110 to move (for example, drive the various joints of the flexible arm to rotate).

[0060] The driver can adopt existing related technologies, such as rotary motors, linear motors, linear cylinders, etc., and connect and drive the flexible arm through conventional connection methods. In actual implementation plans, the structure of the flexible arm may change according to the specifications of the specific driver used.

[0061] For example, when a rotary motor is used as the driver of the flexible arm, the rotary motor can be directly installed at the joints of the flexible arm, and the shape and size of the hinged part will change accordingly; when a linear cylinder is used as the driver of the flexible arm, since the linear motion of the driver needs to be converted into the rotational motion of each arm section and the guard plate 110, the driver needs to be connected to the arm section and / or the guard plate 110 through a connecting rod or other transmission mechanism, so the battery pack protection device also needs to add relevant transmission mechanisms.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0063] In some selectable embodiments, the function / operation mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the function / operation involved, the two boxes shown in succession can actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiment presented and described in the flow chart of the application is provided by way of example, for the purpose of providing a more comprehensive understanding of technology. The disclosed method is not limited to the operation and logic flow presented herein. Selectable embodiments are expected, wherein the order of various operations is changed and the sub-operation of a part described as a larger operation is performed independently.

[0064] 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 spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery pack protection device, characterized in that: include: A guard plate is movably mounted on a door sill beam to switch between a first mode and a second mode. In the first mode, the guard plate is retracted into the vehicle, and the guard plate extends from the door sill beam to below the battery pack to cover the fitting gap between the battery pack and the door sill beam. In the second mode, the guard plate extends from the vehicle to provide a foot pedal for the user.

2. The battery pack protection device according to claim 1, characterized in that: In the first mode, the guard plate abuts against the lower surface of the battery pack.

3. The battery pack protection device according to claim 2, characterized in that: The guard plate is provided with a sealing surface and an anti-skid surface. In the first mode, the sealing surface faces upward to abut against the lower surface of the battery pack, and in the second mode, the anti-skid surface faces upward.

4. The battery pack protection device according to claim 3, characterized in that: The guard plate can be flipped along a horizontal axis so that the sealing surface and the anti-slip surface are switched to face upward.

5. The battery pack protection device according to claim 3, characterized in that: A sealing pad and an anti-skid pad are respectively arranged on both sides of the guard plate, the sealing pad forms the sealing surface, and the anti-skid pad forms the anti-skid surface.

6. The battery pack protection device according to any one of claims 1 to 5, characterized in that: The battery pack protection device also includes a flexible arm, which is installed on the door sill beam. The guard plate is installed at the output end of the flexible arm, and the flexible arm can drive the guard plate to move.

7. The battery pack protection device according to claim 6, characterized in that: The flexible arm includes a base and an arm section, the base is fixedly mounted on the bottom of the threshold beam, and the arm section is hingedly connected to the base and the guard plate respectively; the arm section includes a first arm section and a second arm section, and the base, the first arm section, the second arm section and the guard plate are hingedly connected in sequence.

8. The battery pack protection device according to claim 7, characterized in that: In the first mode, the first arm section and the second arm section are retracted into the vehicle, and in the second mode, the first arm section extends outward from the sill beam to extend from the bottom of the sill beam, and the second arm section extends obliquely upward to raise the guard plate relative to the first mode.

9. The battery pack protection device according to claim 8, characterized in that: In the second mode, the second arm section abuts against an outer surface of the vehicle, and the shape of the second arm section matches the outer shape of the vehicle.

10. A vehicle, characterized in that: The vehicle includes the battery pack protection device according to any one of claims 1 to 9.

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