Luggage compartment and vehicle

Abstract

The luggage compartment comprises a compartment body, the compartment body is provided with a first end, a second end and a bottom plate, and the first end and the second end are arranged at an interval in the front-back direction of the vehicle; the first end, the second end and the bottom plate enclose and define a containing groove, and the first end is lower than the second end. In the application, the first end and the second end of the cabin body and the bottom plate are encircled and limited to form the accommodating groove for accommodating articles; the first end and the second end are arranged at an interval in the front-back direction of the vehicle, the first end is lower than the second end, and the first end with the lower height is more beneficial for objects to enter and exit from the containing groove, so that the objects are convenient to store and take.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and more particularly to a luggage compartment and a vehicle. Background Art

[0002] In recent years, with the rapid development of automobiles, the design of a front trunk has been considered to increase the storage space of the whole vehicle. Due to the requirements of the front overhang size and layout, the existing front trunk has the defect of being inconvenient for accessing luggage after the user opens the trunk cover. Utility Model Content

[0003] The purpose of this application is to provide a luggage compartment and a vehicle to solve the problem of difficult access to luggage in the luggage compartment.

[0004] To achieve the purpose of this application, the following technical solutions are provided:

[0005] In a first aspect, this application provides a luggage compartment for use in a vehicle, the luggage compartment including:

[0006] A cabin body having a first end, a second end, and a bottom plate, the first end and the second end being spaced apart in the front-rear direction of the vehicle;

[0007] The first end, the second end, and the bottom plate enclose and define a receiving groove, wherein the height of the first end is lower than the height of the second end.

[0008] In one embodiment, the luggage compartment is adapted to be disposed in the front cabin of the vehicle, the first end being close to the front end of the vehicle and the second end being away from the front end of the vehicle.

[0009] In one embodiment, the luggage compartment further includes a cabin cover, one end of the cabin cover being rotatably connected to the vehicle body to cover the cabin body in the height direction of the vehicle.

[0010] In a second aspect, this application further provides a vehicle including the luggage compartment according to the first aspect.

[0011] In one embodiment, the vehicle further includes a vehicle body, the luggage compartment being disposed on the vehicle body, the cabin body including a notch and an opening;

[0012] In the front-rear direction of the vehicle, an opening is formed between the first end and the second end of the cabin body;

[0013] In the height direction of the vehicle, a notch is formed between the first end and the second end of the cabin body, the notch penetrating the cabin wall of the cabin body in the front-rear direction of the vehicle.

[0014] In one embodiment, the vehicle further includes a grille mask, and the luggage compartment further includes a hatch. One end of the hatch is rotatably connected to the vehicle body to cover the opening.

[0015] The grille mask is fixed to the other end of the hatch so that the grille mask moves relative to the vehicle body as the hatch rotates to cover the notch.

[0016] In one embodiment, the grille mask is detachably connected to the hatch.

[0017] In one embodiment, the vehicle further includes a first connecting member. A first mounting hole is provided on the hatch, and a second mounting hole is provided on the grille mask. The first connecting member passes through the first mounting hole and the second mounting hole.

[0018] In one embodiment, a locking member is provided on the vehicle body, and a locking groove is provided on the grille mask. The locking member is inserted into the locking groove.

[0019] In one embodiment, the receiving groove communicates with the opening and the notch. The notch is formed by a depression on an end face of the cabin body away from the bottom plate in the height direction of the vehicle.

[0020] In one embodiment, the cabin body includes a plurality of side plates. The plurality of side plates are connected end to end in sequence and surround the bottom plate. The notch is provided on one of the side plates and extends in the width direction of the vehicle.

[0021] In one embodiment, the plurality of side plates include a first side plate, a second side plate, a third side plate, and a fourth side plate that are connected end to end in sequence. The notch is provided on the first side plate. The first side plate and the third side plate are oppositely arranged in the front-rear direction of the vehicle. Among them, the first end is the upper end of the first side plate in the height direction of the vehicle, and the second end is the upper end of the third side plate in the height direction of the vehicle; the dimension of the first side plate in the height direction of the vehicle is smaller than the dimension of the third side plate in the height direction of the vehicle.

[0022] In one embodiment, the third side plate is connected to the vehicle body through a second connecting member.

[0023] In one embodiment, a fixing bracket is provided on the vehicle body, and the fixing bracket is sleeved on an end of the cabin body away from the opening in the height direction of the vehicle.

[0024] In one embodiment, a sealing strip is provided between the vehicle body and the grille mask.

[0025] In one implementation, the hatch cover covering the opening is recessed away from the bottom plate on one side in the height direction of the vehicle to form a groove, and the groove communicates with the accommodation groove.

[0026] In this application, the first end, the second end and the bottom plate of the cabin enclose and define an accommodation groove for accommodating items; the first end and the second end are arranged at intervals in the front-rear direction of the vehicle, and the height of the first end is lower than that of the second end. The lower-height first end is more conducive to the entry and exit of items into and out of the accommodation groove, facilitating the storage and retrieval of items. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 Front view of the vehicle according to an embodiment of the present application;

[0029] Figure 2 For Figure 1 A-A cross-sectional view of

[0030] Figure 3 Cross-sectional view of the cabin according to an embodiment of the present application;

[0031] Figure 4 Partial structural schematic diagram of the hatch cover according to an embodiment of the present application.

[0032] Explanation of the reference numerals:

[0033] 100, luggage compartment; 110, cabin; 111, first end; 112, second end; 113, bottom plate; 114, accommodation groove; 115, notch; 116, opening; 117, first side plate; 118, third side plate; 120, hatch cover; 121, first mounting hole; 122, first convex surface; 123, second convex surface; 124, groove; 200, vehicle body; 210, front bumper; 220, left front headlight cover; 230, right front headlight cover; 240, locking member; 250, support beam; 300, grille mask; 310, grille hole; 320, lock groove; 400, first connecting member. Detailed Implementation Modes

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0035] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0036] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more of the related listed items.

[0037] The following will elaborate on some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0038] Reference Figure 1 、 Figure 2 and Figure 3 , the present application provides a vehicle, which includes a luggage compartment 100 and a vehicle body 200. The vehicle body 200 is a place for passengers and drivers to ride, providing a comfortable and safe environment for passengers. The luggage compartment 100 is installed on the vehicle body 200. The luggage compartment 100 is a space in the vehicle for storing luggage or goods, and can protect and cover the luggage or stored items. In addition, the vehicle also includes a chassis, a powertrain, and electrical equipment. The chassis is the basic framework of the vehicle, used to support and install components such as the vehicle body 200 and the powertrain, form the overall shape of the vehicle, and receive the power from the powertrain to make the vehicle move and ensure normal driving. The powertrain is a component on the vehicle that generates power and transmits the power to the road surface.

[0039] The vehicle provided by the present application is an electric vehicle. For an electric vehicle, its powertrain mainly consists of a motor, a battery pack, an electronic control system, etc. The motor is the power source of the electric vehicle, which converts electrical energy into mechanical energy to drive the vehicle forward. The battery pack is the energy storage device of the electric vehicle, providing electrical energy for the motor. The electronic control system is responsible for controlling the operation of the motor and the charging and discharging process of the battery pack.

[0040] The battery pack of an electric vehicle is usually located at the bottom or the central position of the vehicle. Such a layout creates space at the front of the vehicle. Compared with traditional fuel vehicles, electric vehicles do not need to install complex components such as engines and transmissions, so they can utilize space more flexibly, making it possible to set up a front luggage compartment. The setting of the front luggage compartment can meet the passengers' need for additional storage space. Passengers can place some infrequently used items or luggage in the front luggage compartment for easy access when needed.

[0041] In related technologies, due to the requirements of the front overhang size and layout, the length and width dimensions of the front luggage compartment are generally designed to be small. And to increase the volume of the front luggage compartment, the common solution is to increase the depth dimension of the luggage compartment. For a front luggage compartment with a large depth, it is not convenient to access luggage after the user opens the luggage compartment cover.

[0042] In the embodiments of the present application, the X direction is the front-rear direction of the vehicle, the Y direction is the height direction of the vehicle, and the Z direction is the width direction of the vehicle.

[0043] The luggage compartment 100 includes a cabin body 110 and a cabin cover 120. The cabin body 110 has a first end 111, a second end 112, and a bottom plate 113. The first end 111 and the second end 112 are spaced apart in the front-rear direction X of the vehicle. The first end 111, the second end 112, and the bottom plate 113 enclose and define a receiving groove 114, and the receiving groove 114 provides a receiving space for stored items. The cabin cover 120 can play a covering role after the stored items are placed in the receiving groove 114. Among them, the height of the first end 111 is lower than the height of the second end 112, and the heights of the first end 111 and the second end 112 are dimensions in the height direction Y of the vehicle.

[0044] In the present application, the receiving groove 114 is enclosed and defined by the first end 111, the second end 112, and the bottom plate 113 of the cabin body 110 for receiving items. The first end 111 and the second end 112 are spaced apart in the front-rear direction X of the vehicle, and the height of the first end 111 is lower than the height of the second end 112. The first end 111 with a lower height is more conducive to items entering and exiting the receiving groove 114, facilitating the access of items.

[0045] The luggage compartment 100 provided in the present application is suitable for being arranged in the front cabin of the vehicle. The first end 111 is close to the front end of the vehicle, and the second end 112 is far from the front end of the vehicle. Exemplarily, the cross-section of the cabin body 110 in the direction perpendicular to the width direction Z of the vehicle is generally in a "J" shape. Compared with the traditional structure, the cross-sectional height dimensions of the first end 111 and the second end 112 of the cabin body 110 in the present application are different in the front-rear direction X of the vehicle, which can be regarded as shorter in the front and longer in the rear. The long side is far from the front end of the vehicle, and the short side is close to the front end of the vehicle, which is more conducive to users accessing items.

[0046] The cabin 110 includes a notch 115 and an opening 116. Along the front-rear direction X of the vehicle, an opening 116 is formed between the first end 111 and the second end 112 of the cabin 110; along the height direction Y of the vehicle, a notch 115 is formed between the first end 111 and the second end 112 of the cabin 110, and the notch 115 penetrates the cabin wall of the cabin 110 in the front-rear direction X of the vehicle. That is, the opening 116 and the notch 115 have different orientations to facilitate the access of items.

[0047] Among them, the receiving groove 114 is communicated with the opening 116 and the notch 115, and the notch 115 is formed by the end face of the cabin 110 away from the bottom plate 113 along the height direction Y of the vehicle.

[0048] The vehicle body 200 is provided with a front bumper 210, a left front headlight cover 220 and a right front headlight cover 230. The main function of the front bumper 210 is to absorb and slow down the external impact force and protect the safety device at the front of the vehicle body 200. The left front headlight cover 220 and the right front headlight cover 230 are transparent or semi-transparent components that protect the headlights, ensuring that the headlights can still work normally under harsh weather conditions. Looking from the front of the vehicle to the rear, a "concave" character is formed between the left front headlight cover 220 and the right front headlight cover 230 and the front bumper 210. The space between the left front headlight cover 220 and the right front headlight cover 230 corresponds to the notch 115 of the cabin 110. People standing outside the vehicle can easily access items into and from the cabin 110. Even if the cabin 110 is relatively large in the height direction Y of the vehicle, users do not need to bend down too much.

[0049] In one implementation, the cabin 110 includes a plurality of side plates. The plurality of side plates are connected end to end in sequence and are arranged around the bottom plate 113. The notch 115 is arranged on one of the side plates, and the notch 115 extends along the width direction Z of the vehicle. To increase the size of the notch 115 in the width direction Z of the vehicle and further facilitate the access of items by users.

[0050] In one implementation, the plurality of side plates include a first side plate 117, a second side plate, a third side plate 118 and a fourth side plate that are connected end to end in sequence. The notch 115 is arranged on the first side plate 117. The first side plate 117 and the third side plate 118 are oppositely arranged in the front-rear direction X of the vehicle. Among them, the first end 111 is the upper end of the first side plate 117 along the height direction Y of the vehicle, and the second end 112 is the upper end of the third side plate 118 along the height direction Y of the vehicle; the size of the first side plate 117 in the height direction Y of the vehicle is smaller than the size of the third side plate 118 in the height direction Y of the vehicle, which is beneficial for users to access items.

[0051] One end of the hatch 120 is used for rotatably connecting with the vehicle body 200 so as to cover the opening 116 of the cabin 110 along the height direction Y of the vehicle. Through the rotational connection method, users can more easily open and close the hatch 120 without excessive force or complex steps, improving the convenience of use. By covering the cabin 110 with the hatch 120, it is possible to prevent the items in the cabin 110 from falling.

[0052] The vehicle further includes a grille mask 300. One end of the hatch 120 is rotatably connected to the vehicle body 200, and the grille mask 300 is fixed to the other end of the hatch 120 so that the grille mask 300 moves relative to the vehicle body 200 as the hatch 120 rotates to cover the notch 115.

[0053] In use, the grille mask 300 is disposed between the left front headlight cover 220 and the right front headlight cover 230, and the grille mask 300 is connected to the hatch 120. In this application, by covering the opening 116 of the luggage compartment 100 with the hatch 120 and covering the notch 115 of the luggage compartment 100 with the grille mask 300, the opening 116 and the notch 115 of the luggage compartment 100 are blocked, thereby restricting the items within the luggage compartment 100; the grille mask 300 is fixedly connected to the hatch 120, and after the hatch 120 is opened, the grille mask 300 moves upward together with the hatch 120 to expose the notch 115 and the opening 116 of the cabin 110, facilitating the access of items.

[0054] Among them, the grille mask 300 can be a closed housing structure or grille holes 310 are provided on the grille mask 300 to enhance the aesthetic appearance of the vehicle. For example, by encapsulating the light-emitting module in the grille mask 300, a crystal effect can be produced, enhancing the recognition of the new vehicle and serving as a road lighting function during night driving, and the grille holes 310 can allow light to pass through. In addition, the grille mask 300 can also be used for road auxiliary display to help pedestrians notice the dynamics of the vehicle and for light language interaction, enhancing the technological sense and premium feeling of driving.

[0055] In the vehicle provided in this application, the grille mask 300 is detachably connected to the hatch 120, which is beneficial to the assembly of the grille mask 300 and the hatch 120 and is also convenient for maintenance and replacement of parts.

[0056] Reference Figure 2 、 Figure 3 and Figure 4 , the hatch 120 and the grille mask 300 are connected by a first connecting member 400. The hatch 120 is provided with a first mounting hole 121, and the grille mask 300 is provided with a second mounting hole. The first connecting member 400 passes through the first mounting hole 121 and the second mounting hole to achieve the detachable connection between the hatch 120 and the grille mask 300. Among them, the first connecting member 400 can be a bolt, a screw, etc.

[0057] In one implementation, a plurality of first connectors 400 are provided. A plurality of first mounting holes 121 are provided on the hatch 120, and a plurality of second mounting holes are provided on the grille mask 300. The first connectors 400, the first mounting holes 121, and the second mounting holes are arranged in one-to-one correspondence to improve the connection stability between the hatch 120 and the grille mask 300. The plurality of first mounting holes 121 as a whole include two rows along the front-rear direction X of the vehicle, and the plurality of first mounting holes 121 in each row are spaced along the width direction Z of the vehicle; a first convex platform surface 122 is formed upward along the height direction Y of the vehicle for a plurality of first mounting holes 121 in one row, forming a surface difference with the surrounding surface, increasing the local stiffness around the mounting point, and at the same time increasing the overall stiffness performance of the hatch 120; a second convex platform surface 123 is formed along the front-rear direction X of the vehicle for a plurality of first mounting holes 121 in the other row. The first convex platform surface 122 and the second convex platform surface 123 are joined to form a T-shaped reinforcing rib structure to enhance the stiffness of the mounting point of the first connector 400.

[0058] A locking member 240 is provided on the vehicle body 200, and a locking groove 320 is provided on the grille mask 300. The locking member 240 is inserted into the locking groove 320, and the opening and closing of the grille mask 300 and the hatch 120 are realized through the cooperation of the locking member 240 and the locking groove 320. Specifically, a locking ring is arranged at the middle position of the grille mask 300, the locking groove 320 is provided on the locking ring, and corresponding boss feature structures are arranged on the left and right of the locking ring installation position, and this structure increases the local mounting point stiffness at the locking ring; the locking member 240 is connected to the vehicle body 200 by bolts. At the same time, a reinforcing rib structure is added at the mounting point position of the locking member 240 to enhance the local stiffness of the mounting point. A sealing strip is provided between the vehicle body 200 and the grille mask 300. When the grille mask 300 is closed, buffering and sealing are performed through the sealing strip.

[0059] In this application, a fixing frame is provided on the vehicle body 200, and the fixing frame is sleeved on one end of the luggage compartment 100 far away from the opening 116 in the height direction Y of the vehicle. Specifically, a support beam 250 is provided on the vehicle body 200, and the fixing frame is supported on the support beam 250. The luggage compartment 100 is fixed through the fixing frame, so that the connection structure at the upper end of the luggage compartment 100 does not need to be designed too strong, simplifying the fixing structure of the luggage compartment 100.

[0060] In one implementation, the third side plate 118 of the cabin 110 is connected to the vehicle body 200 through a second connector to further improve the connection stability between the luggage compartment 100 and the vehicle body 200. Among them, the second connector is connected to one end of the third side plate 118 far away from the bottom plate 113 in the height direction Y of the vehicle to fix both ends of the luggage compartment 100 in the height direction Y of the vehicle. The second connector can be a buckle or the like.

[0061] In this application, the luggage compartment 100, the hatch 120 and the grille mask 300 form a storage space. The hatch 120 covering the opening 116 is recessed on one side away from the bottom plate 113 in the vehicle height direction Y to form a groove 124, and the groove 124 communicates with the receiving groove 114, increasing the space of the luggage compartment 100 in the vehicle height direction Y.

[0062] For the vehicle provided by this application, by arranging the luggage compartment 100 at the front end of the vehicle and fixing the grille mask 300 on the hatch 120, due to the action of the increased gravity of the front half of the grille mask 300, the locking member 240 can be better engaged with the locking groove 320 when the hatch 120 is closed; secondly, the increased gravity makes it more difficult for the unfastened hatch 120 to be lifted upwards, increasing the safety during driving. At the same time, when the hatch 120 twists, the structure of the grille mask 300 can better resist torsional deformation, enhancing the overall stiffness performance of the hatch 120. And the arrangement of the luggage compartment 100 at the front end of the vehicle can also improve the safety of the vehicle. In the event of a collision accident, since there are fewer components under the hatch 120, the luggage compartment 100 can play a buffering role, reducing the damage to passengers and the vehicle caused by the collision.

[0063] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to this application.

[0064] The above-disclosed is only a preferred embodiment of this application. Of course, the scope of rights of this application cannot be limited by this. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of this application still fall within the scope covered by this application.

Claims

1. A luggage compartment (100), applied to a vehicle, characterized in that: The luggage compartment (100) comprises: A cabin body (110), the cabin body (110) having a first end (111), a second end (112) and a bottom plate (113), the first end (111) and the second end (112) being arranged at intervals in a front-rear direction (X) of the vehicle; The first end (111), the second end (112) and the bottom plate (113) surround and define a receiving groove (114), wherein the height of the first end (111) is lower than the height of the second end (112).

2. The luggage compartment (100) according to claim 1, characterized in that: The luggage compartment (100) is suitable for being arranged in the front compartment of the vehicle, the first end (111) is close to the front end of the vehicle, and the second end (112) is far from the front end of the vehicle.

3. The luggage compartment (100) according to claim 1, characterized in that: The luggage compartment (100) further comprises a compartment cover (120), one end of which is used to be rotatably connected to the vehicle body (200) of the vehicle so as to cover the compartment body (110) along the height direction (Y) of the vehicle.

4. A vehicle, characterized in that: It comprises a luggage compartment (100) according to any one of claims 1-3.

5. The vehicle according to claim 4, characterized in that The vehicle further comprises a vehicle body (200), the luggage compartment (100) is arranged on the vehicle body (200), and the compartment body (110) comprises a notch (115) and an opening (116); The opening (116) is formed between the first end (111) and the second end (112) of the cabin (110) along the front-rear direction (X) of the vehicle; The notch (115) is formed between the first end (111) and the second end (112) of the cabin (110) along the height direction (Y) of the vehicle, and the notch (115) penetrates the cabin wall of the cabin (110) in the front-rear direction (X) of the vehicle.

6. The vehicle according to claim 5, characterized in that The vehicle further comprises a grille mask (300), and the luggage compartment (100) further comprises a hatch cover (120), one end of the hatch cover (120) being rotatably connected to the vehicle body (200) to cover the opening (116); The grille mask (300) is fixed to the other end of the hatch cover (120) so that the grille mask (300) moves relative to the vehicle body (200) as the hatch cover (120) rotates to cover the gap (115).

7. The vehicle according to claim 6, characterized in that The grille mask (300) is detachably connected to the hatch cover (120).

8. The vehicle according to claim 7, characterized in that The vehicle further comprises a first connecting member (400), the hatch cover (120) is provided with a first mounting hole (121), the grille mask (300) is provided with a second mounting hole, and the first connecting member (400) is inserted into the first mounting hole (121) and the second mounting hole.

9. The vehicle according to claim 6, characterized in that The vehicle body (200) is provided with a locking member (240), the grille mask (300) is provided with a locking groove (320), and the locking member (240) is inserted into the locking groove (320).

10. The vehicle according to claim 5, characterized in that The receiving groove (114) is in communication with the opening (116) and the notch (115); an end surface of the cabin (110) away from the bottom plate (113) along the height direction (Y) of the vehicle is recessed to form the notch (115).

11. The vehicle according to claim 10, characterized in that The cabin (110) comprises a plurality of side panels, which are connected end to end in sequence and arranged around the bottom plate (113); the notch (115) is arranged on one of the side panels, and the notch extends along the width direction (Z) of the vehicle.

12. The vehicle according to claim 11, characterized in that The plurality of side panels include a first side panel (117), a second side panel, a third side panel (118) and a fourth side panel which are connected in sequence end to end; the notch (115) is arranged on the first side panel (117); the first side panel (117) and the third side panel (118) are arranged opposite to each other in the front-rear direction (X) of the vehicle; wherein the first end (111) is the upper end of the first side panel (117) along the height direction (Y) of the vehicle; and the second end (112) is the upper end of the third side panel (118) along the height direction (Y) of the vehicle; and the size of the first side panel (117) in the height direction (Y) of the vehicle is smaller than the size of the third side panel (118) in the height direction (Y) of the vehicle.

13. The vehicle according to claim 12, characterized in that The third side plate (118) is connected to the vehicle body (200) via a second connecting member.

14. The vehicle according to claim 5, characterized in that The vehicle body (200) is provided with a fixing frame, and the fixing frame is sleeved on an end of the cabin (110) away from the opening (116) in the height direction (Y) of the vehicle.

15. The vehicle according to claim 6, characterized in that A sealing strip is provided between the vehicle body (200) and the grille mask (300).

16. The vehicle according to claim 6, characterized in that The hatch cover (120) disposed at the opening (116) is recessed in the height direction (Y) of the vehicle toward a side away from the bottom plate (113) to form a groove (124), and the groove (124) is communicated with the accommodating groove (114).

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