An assembly structure of a cooling fan and an automobile

Abstract

The present invention belongs to the technical field of vehicle machinery, and discloses an assembly structure of a cooling fan and an automobile. It includes two groups of front girders which are placed in parallel. At the front end of the front girders, there are front connecting beams, and the front connecting beams are connected by a cross beam. A protective beam is installed perpendicular to the front connecting beams. Upper mounting holes are provided on the front connecting beams, and lower mounting holes are formed on the protective beam. The upper and lower ends of the cooling fan are respectively fixed to the upper mounting holes and the lower mounting holes through third screws; the front connecting beam and the protective beam are connected by a first diagonal brace beam. One end of the first diagonal brace beam is connected to the lower end of the protective beam, and the other end of the first diagonal brace beam is connected to the lower side of the front connecting beam. The first diagonal brace beam, the protective beam and the front connecting beam enclose a triangle. This solves the problem that resonance occurs in the steering wheel and the heavy truck carriage during the operation of the fan in the prior art, affecting the riding comfort.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle machinery, and particularly relates to an assembly structure of a cooling fan and an automobile. Background Art

[0002] With the rapid development of pure electric heavy trucks and the increasing demand for ride comfort of heavy trucks by consumers, when the existing front cooling module of a heavy truck is working, the fan speed operates between 700 - 4500 rpm, and the rotation frequency is between 11.7 Hz - 75 Hz. The modal frequencies of the heavy truck steering wheel mainly concentrate between 30 Hz - 55 Hz. At this time, the modal frequencies of the assembly structure of the cooling fan just concentrate between 30 Hz - 55 Hz. If the working frequency of the cooling fan also concentrates between 30 Hz - 55 Hz, the fan will generate vibrations in the three directions of the X / Y / Z axes during operation, which will cause serious steering wheel jitter problems. Only relying on the installation form of the protective beam and the front connecting beam on the vehicle can only ensure the stiffness and modal in the Z direction, while the vibrations in the X-axis and Y-axis directions cannot be suppressed. When the cooling fan is working, the generated vibrations will be transmitted to the vehicle frame through the four upper and lower mounting points, and then through the body suspension system to the floor and the body, and finally transmitted to the steering wheel, resulting in steering wheel jitter, thus affecting the driving experience of the driver. If the vibrations are further amplified, driving safety problems may also occur. Summary of the Invention

[0003] The purpose of the present invention is to provide an assembly structure of a cooling fan and an automobile, so as to solve the problem that resonance occurs in the steering wheel and the heavy truck carriage when the fan is working in the prior art, affecting the ride comfort.

[0004] To achieve this purpose, the present invention adopts the following technical solutions: The present invention provides an assembly structure of a cooling fan and an automobile, including two groups of front girders, the front girders are placed in parallel, a front connecting beam is arranged at the front end of the front girders, the front connecting beams are connected by a cross beam, a protective beam is installed perpendicular to the front connecting beam. It is set that the length direction of the front girder is the X-axis, the length direction of the cross beam is the Y-axis, and the length direction of the protective beam is the Z-axis. The X-axis, Y-axis, and Z-axis are perpendicular to each other. Upper mounting holes are arranged on the front connecting beam, and lower mounting holes are formed on the protective beam. The upper and lower ends of the cooling fan are respectively fixed to the upper mounting holes and the lower mounting holes through third screws;

[0005] The front connecting beam and the protective beam are connected by a first diagonal brace beam. One end of the first diagonal brace beam is connected to the lower end of the protective beam, and the other end of the first diagonal brace beam is connected to the lower side of the front connecting beam. The first diagonal brace beam, the protective beam, and the front connecting beam enclose a triangle.

[0006] Preferably, the cross-section of the first diagonal brace beam is rectangular, and the first diagonal brace beam is formed by bending a steel plate.

[0007] Preferably, first openings are provided at both ends of the first diagonal bracing beam, second openings are provided on both the protective beam and the front connecting beam, and a first screw passes through the first opening and the second opening and is fastened with a nut.

[0008] Preferably, the protective beam and the cross beam are connected by a second diagonal bracing beam. One end of the second diagonal bracing beam is connected to the middle section of the cross beam, and the other end of the second diagonal bracing beam is connected to the middle section of the protective beam. The second diagonal bracing beam, the cross beam, and the protective beam enclose a triangle.

[0009] Preferably, the second diagonal bracing beam is a steel pipe, and crimping areas are formed by stamping at both ends of the second diagonal bracing beam. The crimping areas are in the shape of flakes.

[0010] Preferably, third through holes are provided in the crimping areas, fourth through holes are provided in the cross beam, and a second screw passes through the third through hole and the fourth through hole and is fastened with a nut.

[0011] Preferably, screw holes are formed on both the upper and lower sides of the fan, shock pads are installed between the screw holes and the upper mounting holes, the shock pads are clamped between the screw holes and the lower mounting holes, and a third screw passes through the shock pads.

[0012] Preferably, weight-reducing holes are provided in the protective beam and the front connecting beam.

[0013] Preferably, the front main beam and the front connecting beam are fastened in the form of bolts, and the front connecting beam is fastened to the protective beam, the front connecting beam, and the cross beam in the form of bolts.

[0014] An automobile includes the assembly structure of the cooling fan described in any one of the above, and the assembly structure of the cooling fan is installed at the front end of the automobile.

[0015] Beneficial effects: By adding a first diagonal bracing beam between the front connecting beam and the protective beam, when the cooling fan rotates, the assembly structure of the cooling fan increases the stiffness in the X-axis direction through the first diagonal bracing beam, suppressing the vibration of the cooling fan in the X-axis direction. Similarly, by adding a second diagonal bracing beam, the vibration of the cooling fan in the Y-axis direction is suppressed, so that the vibration frequency transmitted to the interior of the carriage by the fan is out of the range of 30 Hz - 55 Hz, avoiding resonance between the cooling fan and the in-vehicle structures such as the steering wheel during operation, and making the riding effect in the carriage more comfortable. Description of the Drawings

[0016] Figure 1 is the main body diagram of the assembly structure of the cooling fan of the present invention;

[0017] Figure 2It is a side view of the assembly structure of the cooling fan of the present invention.

[0018] In the figure: 1 - front girder; 2 - front connecting beam; 3 - protective beam; 4 - cross beam; 5 - first diagonal brace beam; 6 - second diagonal brace beam; 61 - crimping area; 7 - weight reduction hole; 8 - upper mounting hole; 9 - lower mounting hole. Specific embodiments

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present invention and not for limiting the present invention. In addition, it should be noted that for the convenience of description, only the parts related to the present invention are shown in the drawings rather than all the structures.

[0020] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; 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 internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0022] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, 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 thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0023] After installing the cooling fan structure under the prior art, the cooling fan is connected to the front connecting beam and the protection beam through the upper mounting holes and the lower mounting holes. At this time, when the cooling fan is working, vibrations in different directions of the X-axis, Y-axis, and Z-axis will be generated. When the above vibrations are transmitted to the cab through solid parts, resonance will be caused to the lamp components of the steering wheel, reducing the driving experience of the occupants.

[0024] To solve the above problems, as Figures 1 to 2 shown, the present invention provides an assembly structure of a cooling fan, which includes two groups of front main beams 1. The front main beams 1 are placed in parallel. A front connecting beam 2 is provided at the front end of the front main beam 1. The front connecting beams 2 are connected by a cross beam 4. A protection beam 3 is installed perpendicular to the front connecting beam 2. It is set that the length direction of the front main beam 1 is the X-axis, the length direction of the cross beam 4 is the Y-axis, and the length direction of the protection beam 3 is the Z-axis. The X-axis, Y-axis, and Z-axis are perpendicular to each other. Upper mounting holes 8 are provided on the front connecting beam 2, and lower mounting holes 9 are formed on the protection beam 3. The upper and lower ends of the cooling fan are respectively fixed to the upper mounting holes 8 and the lower mounting holes 9 through the third screw;

[0025] The front connecting beam 2 and the protection beam 3 are connected by a first diagonal brace 5. One end of the first diagonal brace 5 is connected to the lower end of the protection beam 3, and the other end of the first diagonal brace 5 is connected to the lower side of the junction of the front connecting beam 2 and the front main beam 1. The first diagonal brace 5, the protection beam 3, and the front connecting beam 2 enclose a triangle. According to the laws of physics, the triangle enclosed by the first diagonal brace 5, the protection beam 3, and the front connecting beam 2 has stability, effectively suppressing the vibrations generated in the Z-axis and X-axis directions.

[0026] Since the protection beam 3 is provided itself, the stiffness in the Z-axis direction is enhanced. A part of the vibration in the Z-axis direction is suppressed through the protection beam 3. At the same time, the first diagonal brace 5 is added. Since the length direction of the first diagonal brace 5 has a projection in the X-axis direction, the stiffness can be increased in the X-axis direction, reducing the vibration generated by the cooling fan in the X-axis direction when the cooling fan is working, making the occupants inside the carriage more comfortable and improving safety.

[0027] The cross section of the first diagonal brace 5 is rectangular. The first diagonal brace 5 is formed by folding a steel plate and bent into a rectangle four times by the steel plate, so that the first diagonal brace 5 is a rectangular steel pipe. Processing through the steel plate can reduce the processing cost.

[0028] First openings are provided at both ends of the first diagonal brace 5, and second openings are provided on both the protection beam 3 and the front connecting beam 2. The first screw passes through the first opening and the second opening and is fastened with a nut.

[0029] The first opening and the second opening are fixed through the first bolt. At the same time, the connection by the bolt method is convenient for disassembly, inspection, and replacement, reducing the maintenance cost and improving safety.

[0030] The protective beam 3 and the cross beam 4 are connected by a second diagonal bracing beam 6. One end of the second diagonal bracing beam 6 is connected to the middle section of the cross beam 4, and the other end of the second diagonal bracing beam 6 is connected to the middle section of the protective beam 3. The second diagonal bracing beam 6, the cross beam 4, and the protective beam 3 enclose a triangle. Similarly, due to the physical law of the stability of the triangle, the stability between the cross beam 4 and the protective beam 3 can be increased. Since the second diagonal bracing beam 6 also has a projection on the Y-axis, the stiffness of the cooling fan assembly structure in the Y-axis direction can be increased, the safety can be improved, and the vibration generated in the Y-axis direction can be suppressed.

[0031] The second diagonal bracing beam 6 is a steel pipe. Pressing areas 61 are formed at both ends of the second diagonal bracing beam 6, and the pressing areas 61 are in a sheet shape.

[0032] By directly pressing both ends of the steel pipe into a flat shape, it is convenient for the factory to cut and process, reducing the production cost of parts. Among them, the steel pipe is a relatively common material, which can greatly reduce the procurement cost.

[0033] A third through hole is opened in the pressing area, and a fourth through hole is opened in the cross beam 4. After the second screw passes through the third through hole and the fourth through hole, it is fastened by a nut.

[0034] By tightening with the above-mentioned second screw, it is convenient to replace when the second diagonal bracing beam 6 is damaged, improving the convenience of maintenance.

[0035] Screw holes are formed on the upper and lower sides of the fan of the present invention. A shock pad is installed between the screw holes and the upper mounting holes 8, and a shock pad is clamped between the screw holes and the lower mounting holes 9. The third screw passes through the shock pad.

[0036] The vibration generated when the fan is working will be absorbed by the shock pad, further weakening the vibration intensity transmitted to the assembly structure, making the vibration felt in the cab of the vehicle smaller.

[0037] Weight reduction holes 7 are opened on the protective beam 3 and the front connecting beam 2. Since the first diagonal bracing beam 5 and the second diagonal bracing beam 6 are newly added, the self-weight of the cooling fan assembly structure will become larger, resulting in increased fuel consumption. By opening the weight reduction holes 7, the weight of the cooling fan assembly is reduced without affecting the structural strength, thereby reducing fuel consumption.

[0038] The front main beam 1 and the front connecting beam 2 are fastened by bolts, and the front connecting beam 2 is fastened to the protective beam 3, and between the front connecting beam 2 and the cross beam 4 by bolts.

[0039] The front main beam 1 and the protective beam 3 are fastened by bolts, which is convenient for disassembly and maintenance, improving the convenience of disassembly.

[0040] The cooling fan assembly structure of the present invention is installed at the front end of the vehicle. By adding the first diagonal bracing beam 5 and the second diagonal bracing beam 6, the vibration transmitted to the cab and the steering wheel can be reduced, improving the driving experience of the driver.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. The assembly structure of a cooling fan, characterized in that, it includes two groups of front girders (1), the front girders (1) are placed in parallel, a front connecting beam (2) is arranged at the front end of the front girders (1), the front connecting beams (2) are connected by a cross beam (4), a protective beam (3) is installed perpendicular to the front connecting beam (2), setting the length direction of the front girder (1) as the X-axis, the length direction of the cross beam (4) as the Y-axis, and the length direction of the protective beam (3) as the Z-axis, the X-axis, Y-axis and Z-axis are perpendicular to each other, an upper mounting hole (8) is arranged on the front connecting beam (2), a lower mounting hole (9) is formed on the protective beam (3), and the upper and lower ends of the cooling fan are respectively fixed to the upper mounting hole (8) and the lower mounting hole (9) by a third screw; the front connecting beam (2) is connected to the protective beam (3) by a first diagonal brace beam (5), one end of the first diagonal brace beam (5) is connected to the lower end of the protective beam (3), the other end of the first diagonal brace beam (5) is connected to the lower side of the front connecting beam (2), and the first diagonal brace beam (5), the protective beam (3) and the front connecting beam (2) enclose a triangle; the cross section of the first diagonal brace beam (5) is rectangular, and the first diagonal brace beam (5) is formed by bending a steel plate; the protective beam (3) and the cross beam (4) are connected by a second diagonal brace beam (6), one end of the second diagonal brace beam (6) is connected to the middle section of the cross beam (4), and the other end of the second diagonal brace beam (6) is connected to the middle section of the protective beam (3), and the second diagonal brace beam (6), the cross beam (4) and the protective beam (3) enclose a triangle.

2. The assembly structure of the cooling fan according to claim 1, characterized in that, first openings are arranged at both ends of the first diagonal brace beam (5), second openings are arranged on both the protective beam (3) and the front connecting beam (2), and a first screw passes through the first opening and the second opening and is fastened with a nut.

3. The assembly structure of the cooling fan according to claim 1, characterized in that, the second diagonal brace beam (6) is a steel pipe, and crimping areas (61) are formed by stamping at both ends of the second diagonal brace beam (6), and the crimping areas (61) are in sheet shape.

4. The assembly structure of the cooling fan according to claim 3, characterized in that, third through holes are opened on the crimping areas (61), fourth through holes are opened on the cross beam (4), and a second screw passes through the third through hole and the fourth through hole and is fastened with a nut.

5. The assembly structure of the cooling fan according to claim 1, characterized in that, threaded holes are formed on both the upper and lower sides of the fan, shock pads are installed between the threaded holes and the upper mounting holes (8), shock pads are clamped between the threaded holes and the lower mounting holes (9), and the third screw passes through the shock pads.

6. The assembly structure of the cooling fan according to claim 1, characterized in that, weight-reducing holes (7) are opened on the protective beam (3) and the front connecting beam (2).

7. The assembly structure of the cooling fan according to claim 1, characterized in that, The front girder (1) and the front connecting beam (2) are fastened in the form of bolts, and the front connecting beam (2) is fastened to the protection beam (3), and between the front connecting beam (2) and the cross beam (4) in the form of bolts.

8. An automobile, characterized in that it includes the assembly structure of the cooling fan according to any one of claims 1-7, and the cooling fan assembly structure is installed at the front end of the automobile.

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