Wedge-shaped vehicle body structure for engine compartment

Abstract

The utility model discloses a wedge-shaped vehicle body structure for an engine compartment. The wedge-shaped vehicle body structure comprises an engine compartment top cover, a top vehicle body structure and a tail vehicle body structure, the engine compartment top cover is installed on the top vehicle body structure through a hinge, the top vehicle body structure and the tail vehicle body structure are welded and fixed, the welding angle is minus degrees, the exhaust louver is installed on the tail vehicle body structure through a hinge, and the lower end of the tail vehicle body structure and the bottom vehicle body structure are welded and fixed. According to the wedge-shaped vehicle body structure, by optimizing the vehicle body structure and adjusting the angle of the exhaust outlet of the cooling air duct, the effective volume of the power cabin, the exhaust area of the cooling air duct, the heat dissipation area of the radiator and the diameter of the mixed flow fan can be effectively increased, so that the overall heat dissipation capacity of the power cabin is improved, and the problem that the heat dissipation capacity of the power cabin is insufficient is solved. Meanwhile, a pneumatic sealing belt structure is added, the sealing performance can be effectively improved, and a pod is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of special vehicle bodies and relates to a wedge-shaped body structure for a power compartment, in particular to a wedge-shaped body structure suitable for a high-power-density power compartment. Background Art

[0002] The traditional power compartment body structure features a power compartment cover hingedly mounted on the top of the vehicle body structure. The junction between the rear of the vehicle body and the power compartment is a right-angle structure. As engine power increases, the power compartment's heat dissipation capacity becomes severely insufficient. Furthermore, the increased size of the cooling system creates a lack of space inside the power compartment.

[0003] In addition, the existing sealing strip structure between the cooling air duct and the vehicle body is prone to aging and deformation, which affects the sealing performance of the power compartment. Utility Model Content

[0004] The utility model provides a wedge-shaped vehicle body structure for a power cabin, and aims to solve the following technical problems: solving the problem of insufficient heat dissipation capacity of the power cabin; and solving the problem of insufficient internal space of the power cabin and the problem of sealing the power cabin.

[0005] In order to solve the above technical problems, the utility model provides a wedge-shaped body structure for a power compartment, which is characterized in that: it includes a top body structure and a tail body structure; the upper end of the tail body structure is fixed to the rear end of the top body structure, and the angle between the tail body structure and the top body structure is less than 90 degrees; the lower end of the tail body structure is welded and fixed to the bottom body structure.

[0006] Furthermore, the welding angle between the top body structure and the rear body structure is 84-86°.

[0007] Furthermore, the air outlet of the cooling air duct arranged in the power compartment is flush with the surface of the rear vehicle body structure.

[0008] Furthermore, a pneumatic sealing belt is designed between the cooling air duct and the rear vehicle body structure.

[0009] Furthermore, an integrated transmission device is provided in the power compartment, and cooling air ducts, mixed flow fans and radiators are symmetrically arranged on the left and right sides of the top of the integrated transmission device. The mixed flow fan is coaxially fixed with the output shaft of the integrated transmission device, the cooling air duct is installed on the upper part of the integrated transmission device, and the radiator is installed above the cooling air duct.

[0010] Beneficial Effects: By optimizing the vehicle body structure and adjusting the cooling duct exhaust angle, this new wedge-shaped vehicle body structure can effectively increase the effective volume of the power compartment, increase the cooling duct exhaust area, increase the radiator heat dissipation area, and increase the diameter of the mixed flow fan, thereby improving the overall heat dissipation capacity of the power compartment and solving the problem of insufficient heat dissipation capacity of the power compartment. At the same time, the addition of an aerodynamic sealing strip structure can effectively improve the sealing performance and facilitate the pod. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Schematic diagram of the wedge-shaped vehicle body structure of the present invention.

[0012] Among them: 1 power compartment top cover 2 top body structure 3 tail body structure 4 aerodynamic sealing belt 5 exhaust louvers 6 cooling air duct 7 bottom body structure 8 integrated transmission device 9 mixed flow fan 10 radiator. DETAILED DESCRIPTION

[0013] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation methods of the present invention are further described in detail below.

[0014] The utility model proposes a wedge-shaped vehicle body structure for a power compartment, comprising: a power compartment top cover 1, a top vehicle body structure 2, and a rear vehicle body structure 3;

[0015] The power compartment cover 1 is mounted on the top body structure 2 by a hinge. The top body structure 2 is welded to the rear body structure 3 with a welding angle of 84-86°, preferably 85°. The exhaust shutter 5 is mounted on the rear body structure 3 by a hinge. The lower end of the rear body structure 3 is welded to the bottom body structure 7.

[0016] The integrated transmission device 8 is arranged in the power compartment, and the cooling duct 6, mixed flow fan 9, and radiator 10 are symmetrically arranged on the left and right sides of the top. The mixed flow fan 9 is coaxially fixed with the output shaft of the integrated transmission device 8, the cooling duct 6 is installed on the upper part of the integrated transmission device 8, and the radiator 10 is installed above the cooling duct 6 and fixed by special long bolts. The exhaust port of the cooling duct 6 is flat with the surface of the rear body structure 3, and is inclined at 4-6 degrees to the vertical direction. An aerodynamic sealing belt 4 is designed between the cooling duct 6 and the rear body structure 3 to realize a closed duct structure. The cooling duct vortex casing adopts an aluminum alloy one-piece casting structure, which serves as a fixed mounting bracket for the radiator 10 and a circulation channel for the system cooling air.

[0017] principle:

[0018] The junction of the rear of the vehicle body and the power compartment adopts a vehicle body structure with a 5° inclination to the vertical direction. At the same time, the exhaust outlet of the cooling air duct is inclined at 5° to the vertical direction, which increases the exhaust volume and the heat dissipation area of the upper radiator. At the same time, due to the increase in the internal volume of the cooling air duct vortex casing, a larger diameter mixed flow fan can be used, thereby improving the overall heat dissipation capacity of the power compartment.

[0019] To ensure a reliable seal between the duct and the vehicle body and facilitate pod placement and unloading, a pneumatic sealing strip is used between the cooling duct and the vehicle body. This seal is achieved through inflation and deflation. The pneumatic sealing strip is made of a multi-layer rubber material with a certain strength and good ductility, ensuring excellent sealing while meeting the requirements of high-temperature and aging resistance.

[0020] The advantages are as follows:

[0021] 1. Since the opening of the power compartment body is changed from a right-angle structure to a wedge-shaped structure, it is convenient for the pod to be lifted and lowered, and it is also convenient for the wiring of electrical equipment such as the rear lights inside the body.

[0022] 2. The rear body structure is tilted outward by 5°, which can meet the internal heat dissipation space requirements of the high-power density power compartment. It does not require local special shapes, reduces welding surfaces, and the overall structure is easy to process.

[0023] 3. Due to the enlargement of the cooling air duct exhaust port, the exhaust volume and the heat dissipation area of the upper radiator are increased. At the same time, due to the increase in the internal volume of the cooling air duct vortex casing, a larger diameter mixed flow fan can be used, thereby improving the overall heat dissipation capacity of the power compartment.

[0024] 4. The interface between the cooling air duct and the vehicle body is changed from a rubber strip seal to a pneumatic sealing belt seal, which improves the sealing performance and facilitates the pod to be lifted and lowered.

Claims

1. A wedge-shaped vehicle body structure for a power compartment, characterized in that: It includes a top body structure and a tail body structure; the upper end of the tail body structure is fixed to the rear end of the top body structure, and the angle between the tail body structure and the top body structure is less than 90 degrees; the lower end of the tail body structure is welded and fixed to the bottom body structure.

2. The wedge-shaped vehicle body structure for a power compartment according to claim 1, characterized in that: The engine compartment roof is hingedly mounted on the top body structure.

3. The wedge-shaped vehicle body structure for a power compartment according to claim 1, characterized in that: The top body structure and the rear body structure are welded and fixed.

4. The wedge-shaped vehicle body structure for a power compartment according to claim 1, characterized in that: The welding angle between the top body structure and the rear body structure is 84-86 degrees.

5. The wedge-shaped vehicle body structure for a power compartment according to claim 1, characterized in that: The welding angle between the top body structure and the rear body structure is 85°.

6. The wedge-shaped vehicle body structure for a power compartment according to claim 1, characterized in that: Exhaust shutters are hingedly mounted on the rear body structure.

7. The wedge-shaped vehicle body structure for a power compartment according to claim 1, characterized in that: The exhaust port of the cooling air duct arranged in the power compartment is flush with the surface of the rear vehicle body structure.

8. The wedge-shaped vehicle body structure for a power compartment according to claim 7, characterized in that: An aerodynamic sealing strip is designed between the joint surface of the cooling air duct and the rear body structure.

9. The wedge-shaped vehicle body structure for a power compartment according to claim 1, characterized in that: An integrated transmission device is installed in the power compartment, and cooling ducts, mixed flow fans and radiators are symmetrically arranged on the left and right sides of the top of the integrated transmission device; the mixed flow fan is coaxially fixed with the output shaft of the integrated transmission device, the cooling duct is installed on the upper part of the integrated transmission device, and the radiator is installed above the cooling duct.

10. The wedge-shaped vehicle body structure for a power compartment according to claim 8, characterized in that: The pneumatic sealing belt is made of multi-layer rubber material.

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