A battery compartment door structure for a passenger car

Abstract

The present invention discloses a battery compartment door structure for a passenger car, including a battery compartment door panel, a square frame and a grille, wherein the square frame is mounted on the battery compartment door panel, a plurality of ventilation holes are arranged on the battery compartment door panel within the range of the square frame, and the grille is composed of a plurality of grille sheets, the upper and lower ends of which are rotatably connected to the square frame and connected to an angle adjustment driving mechanism for driving the grille sheets to rotate, and the grille sheets can close the square frame after rotation. The present invention arranges an angle-adjustable grille between the compartment door panel and the battery compartment body, and uses the grille to adjust the air volume entering the battery compartment body, thereby meeting the heat dissipation and heat preservation requirements of the power battery, maximizing the discharge depth of the power battery, and thereby improving the vehicle's driving range.

Description

Technical Field

[0001] The invention relates to a battery compartment door structure for a bus, belonging to the technical field of automobile battery boxes. Background Art

[0002] With the popularity of new energy vehicles, pure electric buses have become the mainstream of new energy buses. At present, the power battery loading capacity of pure electric buses can no longer meet customers' demand for vehicle range, and the depth of power battery discharge is greatly affected by the battery temperature, which in turn affects the vehicle range. Limited by the vehicle structure, most vehicle manufacturers generally install the power battery in the cabin at the bottom of the bus. This installation method cannot well meet the heat dissipation and insulation requirements of the battery. At present, most vehicle manufacturers only open vents on the hatch door panels of the battery cabin to meet the heat dissipation requirements of the battery, without considering the insulation requirements of the battery. When the vehicle is running in winter, cold air can also enter the battery cabin from the vents on the hatch door panels, thereby affecting the temperature of the power battery, and then affecting the discharge depth of the power battery and the vehicle's range.

[0003] In the existing public technology, there is no battery compartment door specially designed for the battery compartment that can change the air intake volume, and the existing vehicles only solve the heat dissipation needs of the power battery when the vehicle is running in the summer during the design and production process, but do not consider the insulation needs of the power battery when the vehicle is running in the winter. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a battery compartment door structure for a bus to solve the problems existing in the above-mentioned prior art.

[0005] The technical solution adopted by the present invention is: a battery compartment door structure for a bus, comprising a battery compartment door panel, a square frame and a grille, the square frame is mounted on the battery compartment door panel, a plurality of ventilation holes are arranged on the battery compartment door panel within the square frame, the grille is composed of a plurality of grille sheets, the upper and lower ends of which are rotatably connected to the square frame and connected to an angle adjustment drive mechanism that drives the grille sheets to rotate, and the grille sheets can close the square frame after rotation.

[0006] Preferably, the angle adjustment drive mechanism includes a guide plate, a screw and a butterfly nut. The guide plate is a convex structure that is higher in the middle and lower on both sides. Both ends are provided with strip holes arranged along its length direction. A circular hole one is provided in the middle. Two screws are used, which are respectively fixedly connected to the upper end of the square frame and are locked with butterfly nuts after passing through the strip holes. The upper and lower ends of the grille are respectively provided with rotating shaft one and rotating shaft two. Rotating shaft one is an inverted L-shaped structure. Rotating shaft one and rotating shaft two are respectively rotatably connected to the circular hole two of the upper and lower fixing members of the angle steel shape. The upper fixing member and the lower fixing member are respectively fixedly connected to the upper and lower frame walls of the square frame, and the upper end horizontal section of the rotating shaft one movably extends into the circular hole one.

[0007] Beneficial effects of the present invention: Compared with the prior art, the present invention is a battery compartment door structure for a passenger car, which utilizes the circular holes on the two fixings on the frame to install the grille between the two fixings so that it can rotate around its own rotation axis, and then installs the L-shaped rotation axis at the upper end of the grille into the circular hole in the middle of the guide plate, and the grille is rotated by sliding the guide plate left and right to change the angle between the grille and the compartment door panel, thereby realizing the adjustment of the air volume entering the battery compartment through the ventilation holes on the compartment door panel and opening and closing the outside wind entering the battery compartment.

[0008] To sum up, the present invention has a simple structure and is easy to process and install. A grille with an adjustable angle is arranged between the hatch door panel and the battery compartment. The grille is used to adjust the air volume entering the battery compartment, thereby meeting the heat dissipation and heat preservation requirements of the power battery, maximizing the discharge depth of the power battery, and thereby improving the vehicle's cruising range. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional structural diagram of a battery compartment door structure for a passenger car;

[0010] Figure 2 1 is a schematic diagram of the upper fixing assembly;

[0011] Figure 3 1 is a schematic diagram of the guide plate assembly;

[0012] Figure 4 It is a schematic diagram of grille assembly;

[0013] Figure 5 It is a schematic diagram of the component structure explosion.

[0014] Among them: 1. Hatch door panel; 2. Square frame; 3. Screw; 4. Butterfly nut; 5. Upper fixing piece; 6. Guide plate; 7. Grille; 8. Lower fixing piece; 9. Strip hole; 10. Round hole one; 11. Ventilation hole; 12. Rotating shaft one; 13. Rotating shaft two; 14. Round hole two. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Example 1: Figure 1-5 As shown, a battery compartment door structure for a bus includes a battery compartment door panel 1, a square frame 2 and a grille 7. The square frame 2 is mounted on the battery compartment door panel 1 by bonding and welding. A plurality of ventilation holes 11 are arranged on the battery compartment door panel 1 within the range covered by the square frame 2. The grille 7 is composed of a plurality of grille sheets, and the upper and lower ends are rotatably connected to the square frame 2 and connected to an angle adjustment driving mechanism for driving the grille sheets to rotate. The grille sheets can close the square frame 2 after rotation.

[0017] Preferably, the angle adjustment drive mechanism comprises a guide plate 6, a screw rod 3 and a butterfly nut 4. The guide plate 6 is a convex structure with a high middle and low sides. Both ends are provided with strip holes 9 arranged along its length direction, and a round hole 10 is provided in the middle. Two screw rods 3 are respectively fixedly connected to the upper end of the square frame 2 and are locked with butterfly nuts 4 after passing through the strip holes 9. The upper and lower ends of the grille are respectively provided with a rotating shaft 12 and a rotating shaft 2 13. The rotating shaft 12 is an inverted L-shaped structure. The rotating shaft 12 and the rotating shaft 13 are The shaft 13 is rotatably connected to the circular hole 14 of the upper fixing member 5 and the lower fixing member 8 of the angle steel shape respectively. The upper fixing member 5 and the lower fixing member 8 are fixedly connected to the upper and lower frame walls of the square frame 2 respectively, and the upper horizontal section of the rotating shaft 12 is movably extended into the circular hole 10. The diameter of the circular hole 10 is 3-5mm larger than the diameter of the horizontal section of the rotating shaft 12. The length of the horizontal section of the rotating shaft 12 is greater than 1.3 times the length of the strip hole 9, ensuring that when the rotation is at an appropriate angle, it can play a better anti-slip limit role.

[0018] Among them, the hatch door panel 1 is a thin plate with a thickness of 2 to 3 mm, and a plurality of ventilation holes 11 are arranged on its surface, which serve as a channel for the outside wind to enter the battery compartment; the square frame 2 is welded into a square shape by a steel pipe or aluminum pipe with a specification of 25×25 mm, and its function is to support the entire hatch structure, and at the same time serve as a mounting carrier for the screw 3, the upper fixing part 5, and the lower fixing part 8; the upper fixing part 5 and the lower fixing part 8 are both an angle steel bar structure with an L-shaped cross-section, which are symmetrically fixed on the rectangular tube up and down, and one of the folded edges is provided with a plurality of circular holes 14, which are the mounting holes of the grille 7, to ensure that the grille 7 can rotate around its own rotation axis and can be assembled on the fixing part 5 and the lower fixing part 8, and the other folded edge is welded or riveted to the square frame 2; the screw 3 is a standard automobile part, which serves as a mounting part for the guide plate 6; the guide plate 6 is a convex thin plate with a thickness of 2 to 3 mm, and a strip hole is arranged on each of the folded edges at both ends. 9, the screw rod 3 passes through the strip hole 9 and is fastened with the butterfly nut 4, so that the guide plate 6 can be fixed on the square frame 2. After loosening the butterfly nut 4, the guide plate 6 can slide back and forth, and after sliding, the grille piece can be driven to rotate to adjust the grille piece at different angles, thereby adjusting the ventilation volume; a plurality of circular holes 10 are arranged on the middle fold of the guide plate 6, which are the driving holes of the inverted L-shaped rotating shaft 1 at the upper end of the grille 7. The horizontal section of the L-shaped rotating shaft 1 passes through this circular hole to realize the rotation of the grille 7 around its own axis; the grille 7 is composed of a plurality of thin plate members and a rotating shaft with a thickness of 2 to 3 mm, which can rotate in the circular holes 10 on the upper fixing member 5 and the lower fixing member 8, the upper end rotating shaft 12 is in an inverted L shape, and the lower end rotating shaft 2 13 is in a straight line shape, the upper end rotating shaft 12 passes through the circular hole 2 14 on the upper fixing member 8 and the circular hole 10 on the guide plate 6 in sequence, and the lower end rotating shaft 2 13 passes through the circular hole 2 14 on the lower fixing member 8.

[0019] The use principle of the present invention is as follows: Figure 1As shown, after loosening the butterfly nut 4, the guide plate 6 is slid forward and backward with force. The horizontal linear movement of the guide plate 6 can drive the grille pieces of the grille 7 to rotate around its own axis, thereby changing the angle between the grille 7 and the hatch door panel 1, and then changing the air volume entering the battery compartment through the ventilation holes 11 on the hatch door panel 1, thereby achieving the purpose of regulating the temperature in the battery compartment and meeting the heat dissipation and insulation requirements of the power battery.

[0020] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A battery compartment door structure for a passenger car, characterized in that: The battery compartment door panel (1), a square frame (2) and a grille (7), wherein the square frame (2) is mounted on the battery compartment door panel (1), a plurality of ventilation holes (11) are arranged on the battery compartment door panel (1) within the range of the square frame (2), and the grille (7) is composed of a plurality of grille sheets, wherein the upper and lower ends of the grille sheets are rotatably connected to the square frame (2) and are connected to an angle adjustment driving mechanism for driving the grille sheets to rotate, and the grille sheets can close the square frame (2) after being rotated; The angle adjustment driving mechanism comprises a guide plate (6), a screw rod (3) and a butterfly nut (4); the guide plate (6) is a convex structure with a high middle and low sides; strip holes (9) are arranged along its length direction at both ends; a round hole (10) is arranged in the middle; two screw rods (3) are respectively fixedly connected to the upper end of the square frame (2) and are locked with butterfly nuts (4) after passing through the strip holes (9); a rotating shaft (12) and a rotating shaft (13) are respectively arranged at the upper and lower ends of the grille plate; the rotating shaft (12) is an inverted L-shaped structure. The invention relates to a structure in which a rotating shaft 1 (12) and a rotating shaft 2 (13) are rotatably connected to the circular holes 2 (14) of the upper fixing member (5) and the lower fixing member (8) of the angle steel respectively; the upper fixing member (5) and the lower fixing member (8) are fixedly connected to the upper and lower frame walls of the square frame (2) respectively; and the upper horizontal section of the rotating shaft 1 (12) is movably extended into the circular hole 1 (10); the diameter of the circular hole 1 (10) is 3-5 mm larger than the diameter of the horizontal section of the rotating shaft 1 (12); and the length of the horizontal section of the rotating shaft 1 (12) is greater than 1.3 times the length of the strip hole (9).

Images