Battery cover, roof structure and electric bus

Abstract

The utility model provides a battery cover, a roof structure and an electric bus, and relates to the technical field of vehicles, the battery cover provided by the utility model comprises a cover body, a cover door, a supporting assembly and a waterproof assembly, access holes are formed in the two sides of the cover body in the width direction of the vehicle, the cover body comprises a skin and side decoration plates connected to the two sides of the skin in the width direction of the vehicle, the skin and the side decoration plates on the two sides are welded into a whole, the side decoration plates are connected with the supporting assembly, and the supporting assembly is used for being connected with a top cover of the vehicle; the cover door is rotationally connected to the access hole, and a waterproof assembly used for abutting against the cover door is arranged at the access hole. The battery cover provided by the utility model does not occupy a larger width space of a bus, and the convenience of battery installation and maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a battery cover, a roof structure and an electric bus. Background Art

[0002] In the existing electric buses, taking the 8.5-meter low-entry and low-floor pure electric bus as an example, the mainstream power is above 80 kwh. On the premise that the battery energy density cannot achieve a huge leap, six battery boxes are often arranged on the top. The arrangement scheme is as Figure 1 shown. The power battery cover is provided with maintenance doors in the front-back direction of the vehicle. The installation sequence of relevant accessories is as follows: after the top side trim is fixed on both sides of the vehicle through the support assembly, the six battery boxes 9 are installed on the same bracket, the whole bracket is hoisted onto the top cover, and then the top-mounted battery cover is hoisted. The top-mounted battery cover extends from the head of the vehicle to the tail of the vehicle. The two sides of the top-mounted battery cover cover the outside of the top side trim and are connected to the top cover through the support assembly.

[0003] In the existing electric buses, since the two sides of the battery cover need to cover the outside of the top side trim, the battery cover and the top side trim occupy a relatively large width space of the bus, and the installation space reserved for the bracket is small. Only six battery boxes 9 can be installed on the same bracket, resulting in that for the maintenance of a single battery box, the top-mounted battery cover needs to be removed as a whole first, and then the whole bracket needs to be disassembled. When disassembling at the bus station, a crane needs to be called for operation, and the convenience of battery installation and maintenance is poor. Content of the Utility Model

[0004] The purpose of the utility model is to provide a battery cover which does not occupy a relatively large width space of the bus and improves the convenience of battery installation and maintenance. In addition, a roof structure including the above battery cover and an electric bus including the above roof structure are provided.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] In the first aspect, the utility model provides a battery cover, which includes a cover body, a cover door, a support assembly and a waterproof assembly;

[0007] Both sides of the cover body in the vehicle width direction are provided with maintenance openings. The cover body includes a skin and side decorative plates connected to both sides of the skin in the vehicle width direction. The skin is welded to the side decorative plates on both sides into a whole. The side decorative plates are connected to the support assembly, and the support assembly is used for connecting with the top cover of the vehicle;

[0008] The cover door is rotatably connected to the maintenance opening, and a waterproof assembly for abutting against the cover door is arranged at the maintenance opening.

[0009] Further, the battery cover further includes a reinforcing member, the reinforcing member is connected to the inner side of the skin, or the reinforcing member is connected to the inner sides of the skin and the side trim panel, and the cover door is rotatably connected to a portion of the reinforcing member close to the inspection opening.

[0010] Further, the battery cover further includes a telescopic mechanism, one end of the telescopic mechanism is rotatably connected to the reinforcing member, and the other end is rotatably connected to the cover door, and the telescopic mechanism is used to support the cover door in an open state.

[0011] Further, a locking assembly for locking the cover door in a closed state is further provided between the cover door and the side trim panel.

[0012] Further, the support assembly includes a transition bracket, and the transition bracket is connected to both sides of the side trim panel along the width direction of the vehicle.

[0013] Further, the transition bracket includes a first bracket and a second bracket. One end of the first bracket is connected to the side trim panel and the position thereof relative to the side trim panel is adjustable in the vertical direction. The other end of the first bracket is connected to one end of the second bracket, and the end of the second bracket away from the first bracket is used to be connected to the roof cover and the position thereof relative to the roof cover is adjustable along the width direction of the vehicle.

[0014] Further, a connection frame is connected to one end of the side trim panel away from the skin, and the transition bracket further includes a fixed support, and the fixed support is connected to both sides of the connection frame along the length direction of the vehicle.

[0015] Further, the waterproof assembly includes a waterproof plate and a sealing strip. The waterproof plate is connected to the transition bracket, and a waterproof stop is recessed in the waterproof plate. The sealing strip is installed in the waterproof stop and the sealing strip fits the roof cover.

[0016] In a second aspect, the present utility model further provides a roof structure, including a roof cover, a first cover shell, a second cover shell, and the battery cover according to the above solution. The first cover shell, the battery cover, and the second cover shell are sequentially connected to the roof cover along the front-to-rear direction of the vehicle body, and the battery cover is disposed opposite to a battery bracket on the roof cover.

[0017] Further, the battery bracket includes a plurality of sub-brackets independently provided, and each of the sub-brackets is detachably connected to the roof cover, and each bracket is used to install a battery box.

[0018] In a third aspect, the present utility model further provides an electric bus, including the battery cover according to the above solution or the roof structure according to the above solution.

[0019] The battery cover, roof structure and electric bus provided by the present utility model can produce the following beneficial effects:

[0020] In the battery cover provided in the first aspect of the present utility model, the skin is welded to the side decorative plates on both sides to form an integral body. The cover body replaces the combined structure of the top side trim plate and the top-mounted battery cover of the traditional electric bus. The cover body does not occupy a large width space on the top cover, minimizes the limitation on the installation space of the battery box, can make full use of the top space of the original vehicle model, ensures that the batteries can be arranged in a penetrating manner, and there is no need to compactly arrange multiple battery boxes on the same bracket, which is convenient for taking out the batteries and improves the convenience of battery installation and maintenance.

[0021] When the above battery cover is under maintenance, the cover door can be opened for operation. When the cover door is closed, it can abut against the waterproof component, thus playing a waterproof role.

[0022] Compared with the prior art, in the roof structure provided in the second aspect of the present utility model, the first cover shell, the battery cover and the second cover shell are sequentially connected to the top cover along the front-to-rear direction of the vehicle body. The battery cover is disposed opposite to the battery bracket on the top cover. Therefore, when the battery needs to be replaced, the battery cover can be removed separately. Compared with the traditional top-mounted battery cover that extends from the front of the vehicle to the rear, it can effectively reduce the hoisting difficulty and lower the maintenance cost.

[0023] The electric bus provided in the third aspect of the present utility model has the battery cover provided in the first aspect of the present utility model or the roof structure provided in the second aspect of the present utility model, and thus has all the beneficial effects of the battery cover provided in the first aspect of the present utility model and the roof structure provided in the second aspect of the present utility model. Description of the Drawings

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a top view of the roof structure in the existing electric bus;

[0026] Figure 2 It is a schematic structural diagram of a roof structure provided by an embodiment of the present utility model.

[0027] Icons: 1 - Vulnerable point; 2 - Waterproof component; 21 - Waterproof board; 22 - Sealing strip; 3 - Skin; 4 - Side trim panel; 5 - Top cover; 6 - Reinforcement; 61 - Embedded plate; 7 - Telescopic mechanism; 8 - Transition bracket; 81 - First bracket; 82 - Second bracket; 9 - Battery. Detailed implementation manners

[0028] The technical solutions of the present utility model will be described clearly and completely below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] The following will describe the detailed implementation manners of the present utility model in detail with reference to the accompanying drawings. It should be understood that the detailed implementation manners described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0032] An embodiment of the first aspect of the present utility model is to provide a battery cover, as Figure 2 shown, including a cover body, a cover door 1, a support component, and a waterproof component 2;

[0033] The cover body has inspection openings on both sides in the vehicle width direction. The cover body includes a skin 3 and side trim panels 4 connected to both sides of the skin 3 in the vehicle width direction. The skin 3 and the side trim panels 4 on both sides are welded into one body, and the side trim panels 4 are connected to the support component, and the support component is used to connect to the top cover 5 of the vehicle;

[0034] The cover door 1 is rotatably connected to the inspection opening, and a waterproof component 2 for abutting against the cover door 1 is provided at the inspection opening.

[0035] As Figure 1 shown, in the existing electric buses, six battery boxes 9 are installed on the same bracket, and the length direction of the batteries is parallel to the direction from the head to the tail of the vehicle. During installation, the top side trim is fixed to both sides of the vehicle through a support component. After installing the bracket with six battery boxes 9 onto the top cover, the top-mounted battery cover is hoisted onto the top cover and connected to the top cover through the support component. The top-mounted battery cover extends from the front of the vehicle to the rear of the vehicle, and both sides of the top-mounted battery cover cover the outside of the top side trim.

[0036] In the existing electric buses, since both sides of the top-mounted battery cover cover the outside of the top side trim, both the top-mounted battery cover and the top side trim occupy the width space of the top cover. Therefore, the installation space reserved for the bracket is small. It is necessary to make the length direction of the batteries 9 parallel to the direction from the head to the tail of the vehicle to reduce the width space occupied by the six battery boxes 9. At the same time, it is necessary to install the six battery boxes 9 on the same bracket to ensure that the batteries 9 are more compact. Therefore, it is difficult to meet the arrangement of the batteries 9 in a through manner in the prior art, that is, it is difficult to meet the arrangement that the length direction of the batteries 9 is parallel to the width direction of the vehicle. At the same time, since the six battery boxes 9 are installed on the same bracket, when a single battery box needs to be repaired, the entire bracket needs to be disassembled, and a crane needs to be called for operation, so the convenience of battery installation and maintenance is poor.

[0037] In addition, since the top side trim is located inside the top-mounted battery cover and the top side trim has a certain height, if inspection doors are opened on the left and right sides of the top-mounted battery cover, the top side trim will block the lower part of the inspection opening, which will cause a certain obstruction to the inspection operation and is not convenient for personnel to operate. Especially for vehicles with a higher shape of the top side trim, it is required that both battery installation and maintenance need to be carried out on the roof of the vehicle, and it is strictly prohibited to step on the box cover during the operation, which increases the operation risk and operation difficulty.

[0038] In the battery cover provided by the embodiment of the first aspect of the present invention, as Figure 2 shown, the skin 3 is welded to the side trim 4 on both sides to form an integral body, and the cover body is used to replace the combined structure of the top side trim and the top-mounted battery cover of the traditional electric bus. Since the skin 3 is directly connected to the side trim 4, the skin 3 does not occupy the width space of the top cover 5, and further makes the cover body not occupy a large width space of the top cover 5, reducing the limitation on the installation space of the battery box to the minimum and making full use of the top space of the original vehicle model. When the above battery cover is under inspection, the cover door 1 can be opened and the operation can be carried out through the inspection opening. When the cover door 1 is closed, it can abut against the waterproof component 2, thereby playing a waterproof role.

[0039] In the above embodiments, first, it is convenient to implement the through arrangement of the batteries. There is no need to compactly arrange multiple battery boxes on the same bracket. Each battery box can be independently installed on different brackets, which is convenient for the removal of the batteries and the laying of the pipelines of the battery boxes, improving the convenience of battery installation and maintenance. Second, the inspection openings are located on both sides of the cover body along the vehicle width direction. After the cover door 1 is opened, there is no blocking structure inside the inspection openings, and the entire inspection openings are exposed in front of the personnel, facilitating the personnel to perform maintenance operations.

[0040] Specifically, the inspection opening can be solely opened on the side trim panel 4; when the height dimension of the inspection opening is relatively large, the inspection opening can also extend upwards to the skin 3, that is, the inspection opening is opened on the skin 3 and the side trim panel 4. That is to say, the personnel can adjust the position of the inspection opening according to actual needs.

[0041] In an alternative embodiment, as Figure 2 shown, to make the structure of the cover body more stable and firm, the battery cover further includes a reinforcing member 6. The reinforcing member 6 is connected to the inner side of the skin 3, or the reinforcing member 6 is connected to the inner sides of the skin 3 and the side trim panel 4.

[0042] It can be understood that a receiving cavity for accommodating structures such as battery boxes is formed between the cover body and the top cover 5. The above-mentioned inner side refers to the side of the skin and the side trim panel 4 facing the receiving cavity.

[0043] The setting of the reinforcing member 6 can enhance the strength of the cover body. In a preferred embodiment, the reinforcing member 6 is connected to the inner sides of the skin 3 and the side trim panel 4.

[0044] Specifically, the reinforcing member 6 can be a rectangular tube. The rectangular tube is welded to the inner side of the skin 3, or the rectangular tube is welded to the inner sides of the skin 3 and the side trim panel 4.

[0045] In a preferred embodiment, the rectangular tube is welded to the inner sides of the skin 3 and the side trim panel 4.

[0046] In an alternative embodiment, as Figure 2 shown, the cover door 1 is rotatably connected to a part of the reinforcing member 6 close to the inspection opening.

[0047] In the above embodiment, the reinforcing member 6 can also support the cover door 1 to ensure that the cover door 1 rotates stably relative to the cover body.

[0048] In an alternative embodiment, for the convenience of the personnel's maintenance operations, the battery cover includes a telescopic mechanism 7. One end of the telescopic mechanism 7 is rotatably connected to the reinforcing member 6, and the other end is rotatably connected to the cover door 1.

[0049] When the personnel open the cover door 1, the telescopic mechanism 7 extends to support the cover door 1 in the opened state. Thus, during the maintenance process, it is not necessary for the personnel to continuously support the cover door 1, liberating the hands of the personnel.

[0050] Specifically, a buried plate 61 is connected to the reinforcing member 6, and the bottom end of the telescopic mechanism 7 can be rotatably connected to the buried plate 61, and the top end of the telescopic mechanism 7 is rotatably connected to the hatch door 1.

[0051] It should be noted that any structure that can drive the opening and closing of the hatch door 1 can be the telescopic mechanism 7 mentioned in the above embodiments. For example, the telescopic mechanism 7 can be a gas strut or a hydraulic strut, etc.

[0052] In a preferred embodiment, the telescopic mechanism 7 is a gas strut.

[0053] In an alternative embodiment, to ensure that the hatch door 1 can be stably locked in the closed state, a locking assembly for locking the hatch door 1 in the closed state is further provided between the hatch door 1 and the side decorative panel 4.

[0054] The above-mentioned locking assembly may include a buckle installed on the side decorative panel 4 and a spring connected to the buckle. When the hatch door 1 is closed, the hatch door 1 can be snapped onto the buckle. When the hatch door 1 needs to be opened, the buckle can be pressed down against the spring force to cancel the snap connection between the hatch door 1 and the buckle. After the hatch door 1 is opened, the buckle resets under the action of the spring.

[0055] The above-mentioned locking assembly may also include a limiting plate rotatably connected to the side decorative panel 4. When the limiting plate rotates to abut against the outer side surface of the hatch door 1, the opening of the hatch door 1 can be restricted. When the limiting plate rotates to cancel the abutment against the outer side surface of the hatch door 1, the hatch door 1 is not limited and the hatch door 1 can be opened.

[0056] Of course, the structure of the locking assembly is not limited to the above two embodiments. Any structure that can lock the hatch door 1 in the closed state can be the locking assembly mentioned in the above embodiments.

[0057] In an alternative embodiment, as Figure 2 shown, the hatch door 1 can be bent into an arc shape. The top end of the hatch door 1 is rotatably matched with the reinforcing member 6, and the bottom end of the hatch door 1 can be buckled on the top cover 5.

[0058] In an alternative embodiment, as Figure 2 shown, the support assembly includes a transition bracket 8, and the transition bracket 8 is connected to both sides of the side decorative panel 4 in the vehicle width direction.

[0059] The above-mentioned transition bracket 8 can realize the connection between both sides of the side decorative panel 4 in the above direction and the top cover 5, thereby ensuring that the side decorative panel 4 is stably installed on the top cover 5.

[0060] Specifically, the transition bracket 8 can be configured as two, three, four, five or even more.

[0061] In a preferred embodiment, four transition brackets 8 may be configured, and the four transition brackets 8 are arranged opposite to each other in pairs along the width direction of the top cover 5 .

[0062] In an optional embodiment, if Figure 2 As shown, the transition bracket 8 includes a first bracket 81 and a second bracket 82, one end of the first bracket 81 is connected to the side decorative panel 4 and its position is adjustable relative to the side decorative panel 4 in the vertical direction, the other end of the first bracket 81 is connected to one end of the second bracket 82, and the end of the second bracket 82 away from the first bracket 81 is used to connect to the top cover 5 and its position is adjustable relative to the top cover 5 in the width direction of the vehicle.

[0063] In the above embodiment, since the position of the first bracket 81 is adjustable relative to the side decorative panel 4 in the vertical direction, and the position of the second bracket 82 is adjustable relative to the top cover 5 in the width direction of the vehicle, the installation of the side decorative panel 4 has a certain adjustment margin, and the operation of the installer is more convenient.

[0064] Specifically, the first bracket 81 is provided with a first waist-shaped hole, the extension direction of which is parallel to the vertical direction, and the second bracket 82 is provided with a first circular hole, through which a bolt can pass through the first circular hole and the first waist-shaped hole and be locked by a nut. Similarly, the second bracket 82 is provided with a second waist-shaped hole, the extension direction of which is parallel to the width direction of the vehicle, and the top cover 5 is provided with a second circular hole, through which a bolt can pass through the second circular hole and the second waist-shaped hole and be locked by a nut.

[0065] In an optional embodiment, a connecting frame is connected to one end of the side decorative panel 4 away from the skin 3, and the connecting frame can enhance the stability of the bottom of the side decorative panel 4. The connecting frame can be a rectangular frame, and the rectangular frame can include rectangular tubes connected horizontally and vertically.

[0066] On the basis of the above-mentioned embodiment, the transition bracket 8 further includes a fixed support, which is connected to both sides of the connecting frame along the length direction of the vehicle.

[0067] During installation, the connection frame can be placed on the top cover 5 , and the fixed support is connected between the connection frame and the top cover 5 to achieve the installation of the connection frame and the top cover 5 .

[0068] Specifically, the fixed support can be an L-shaped support, and a polyurethane pad, a flat pad, a spring pad, etc. can be provided between the L-shaped support and the top cover 5. The embedded bolts of the top cover 5 pass through the polyurethane pad, the flat pad, the spring pad and the L-shaped support and are locked by nuts to realize the connection between the L-shaped support and the top cover 5.

[0069] The above-mentioned transition bracket 8 and the fixed support are arranged, which not only realize the fixation of the two sides of the side trim panel 4 along the vehicle length direction to the roof cover 5, but also realize the fixation of the two sides of the side trim panel 4 along the vehicle width direction to the roof cover 5, making the side trim panel 4 more firmly installed on the roof cover 5.

[0070] In an alternative embodiment, the waterproof component 2 includes a waterproof plate 21 and a sealing strip 22. The waterproof plate 21 can be connected to the transition bracket 8 through connecting members such as bolts, and the waterproof plate 21 is recessed with a waterproof stop. The sealing strip 22 is installed in the waterproof stop and the sealing strip 22 fits against the roof cover 5.

[0071] When the hood door 1 is closed, the hood door 1 can be closed on the sealing strip 22 in the waterproof stop. The sealing strip can be arranged around the inspection opening, or can be distributed at some edges of the inspection opening. The sealing strip can compensate for the gap between the hood door 1 and the inspection opening, thereby playing a waterproof role.

[0072] In the above-mentioned embodiment, the sealing strip 22 can also be arranged to fit against the roof cover 5, preventing rainwater from entering the accommodation cavity through the gap between the hood door 1 and the fixed roof cover 5, and playing a protective role for the battery box.

[0073] An embodiment of the second aspect of the present invention is to provide a roof structure. The roof structure provided by the embodiment of the second aspect of the present invention includes a roof cover 5, a first cover shell, a second cover shell and the above-mentioned battery cover. The first cover shell, the battery cover and the second cover shell are sequentially connected to the roof cover 5 along the front-to-rear direction of the vehicle body, and the battery cover is arranged opposite to the battery bracket on the roof cover 5.

[0074] Compared with the prior art, in the roof structure provided by the embodiment of the second aspect of the present invention, the first cover shell, the battery cover and the second cover shell are sequentially connected to the roof cover 5 along the front-to-rear direction of the vehicle body, and the battery cover is arranged vertically opposite to the battery bracket on the roof cover 5. Therefore, when the battery needs to be replaced, the battery cover can be removed separately without synchronously removing the first cover shell and the second cover shell. Compared with the traditional top-mounted battery cover that extends from the front of the vehicle to the rear of the vehicle, it can effectively reduce the hoisting difficulty and reduce the maintenance cost.

[0075] In the above-mentioned roof structure, the front and rear ends of the battery cover are respectively connected to the first cover shell and the second cover shell, ensuring the overall effect of the roof structure.

[0076] Of course, in other embodiments, the roof structure may only include the first cover shell or only include the second cover shell, and one end of the battery cover away from the first cover shell or the second cover shell extends to the end of the vehicle.

[0077] In an alternative embodiment, the battery bracket includes a plurality of independently arranged sub-brackets, each sub-bracket is detachably connected to the roof cover 5, and each bracket is used to install a battery box.

[0078] In the above embodiments, since each bracket is used to install a battery box, when a certain battery box needs to be replaced, the corresponding bracket can be disassembled, effectively reducing the difficulty of disassembling and assembling the battery box and making it more convenient for personnel to repair.

[0079] An embodiment of the third aspect of the present invention provides an electric bus. The electric bus provided by the embodiment of the third aspect of the present invention includes the above battery cover and the above roof structure.

[0080] The electric bus provided by the third aspect of the present invention has the battery cover provided by the embodiment of the first aspect of the present invention or the roof structure provided by the embodiment of the second aspect of the present invention, and thus has all the beneficial effects of the battery cover provided by the embodiment of the first aspect of the present invention or the roof structure provided by the embodiment of the second aspect of the present invention.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery cover, characterized in that: It comprises a cover body, a cover door (1), a support component and a waterproof component (2); The cover body has inspection openings on both sides along the width direction of the vehicle, and the cover body comprises a skin (3) and side decorative panels (4) connected to both sides of the skin (3) along the width direction of the vehicle, the skin (3) and the side decorative panels (4) on both sides are welded into one body, the side decorative panels (4) are connected to the support assembly, and the support assembly is used to be connected to the roof (5) of the vehicle; The cover door (1) is rotatably connected to the inspection port, and the inspection port is provided with the waterproof component (2) for abutting against the cover door (1).

2. The battery cover according to claim 1, characterized in that: The battery cover also includes a reinforcement (6), the reinforcement (6) is connected to the inner side of the skin (3), or the reinforcement (6) is connected to the inner side of the skin (3) and the side decorative panel (4), and the cover door (1) is rotatably connected to the part of the reinforcement (6) close to the inspection port.

3. The battery cover according to claim 2, characterized in that: The battery cover further comprises a telescopic mechanism (7), one end of the telescopic mechanism (7) being rotatably connected to the reinforcement member (6), and the other end of the telescopic mechanism (7) being rotatably connected to the cover door (1), and the telescopic mechanism (7) being used to support the cover door (1) in an open state.

4. The battery cover according to claim 1, characterized in that: A locking assembly for locking the cover door (1) in a closed state is also provided between the cover door (1) and the side decorative panel (4).

5. The battery cover according to claim 1, characterized in that: The support assembly comprises a transition bracket (8), and the transition bracket (8) is connected to both sides of the side decorative plate (4) along the width direction of the vehicle.

6. The battery cover according to claim 5, characterized in that: The transition bracket (8) comprises a first bracket (81) and a second bracket (82), one end of the first bracket (81) is connected to the side decorative panel (4) and is adjustable in position relative to the side decorative panel (4) in a vertical direction, the other end of the first bracket (81) is connected to one end of the second bracket (82), and one end of the second bracket (82) away from the first bracket (81) is used to connect to the top cover (5) and is adjustable in position relative to the top cover (5) in a width direction of the vehicle.

7. The battery cover according to claim 5, characterized in that: One end of the side decorative panel (4) away from the skin (3) is connected to a connecting frame, and the transition bracket (8) also includes a fixed support, which is connected to both sides of the connecting frame along the length direction of the vehicle.

8. The battery cover according to claim 5, characterized in that: The waterproof assembly (2) comprises a waterproof plate (21) and a sealing strip (22); the waterproof plate (21) is connected to the transition bracket (8), and the waterproof plate (21) is recessed with a waterproof stopper; the sealing strip (22) is installed in the waterproof stopper and the sealing strip (22) fits the top cover (5).

9. A roof structure, characterized in that: The invention comprises a top cover (5), a first cover shell, a second cover shell and a battery cover as claimed in any one of claims 1 to 8, wherein the first cover shell, the battery cover and the second cover shell are sequentially connected to the top cover (5) along the direction from front to rear of the vehicle body, and the battery cover is arranged opposite to the battery bracket on the top cover (5).

10. The roof structure according to claim 9, characterized in that: The battery bracket comprises a plurality of independently arranged sub-brackets, each of which is detachably connected to the top cover (5), and each of which is used to install a battery box.

11. An electric bus, characterized in that: It comprises the battery cover as claimed in any one of claims 1 to 8, or comprises the roof structure as claimed in any one of claims 9 to 10.

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