Dynamic balance structure of automobile exhaust fan

Abstract

The utility model relates to the technical field of automobile exhaust fans, and discloses a dynamic balance structure of an automobile exhaust fan, which comprises a motor, the driving end of the motor is fixedly connected with an impeller shaft, the outside of the impeller shaft is fixedly connected with a plurality of connecting rods I, and the outside of the connecting rods I is sleeved with springs I; a lantern ring is fixedly connected to the right side of one first spring, a first rubber column is arranged in the lantern ring, a second connecting rod is slidably connected to the interior of the lantern ring, the second connecting rod is sleeved with a second spring, a connecting shaft is fixedly connected to the right side of the second connecting rod, and a connecting ring is arranged outside the connecting shaft; and a plurality of fixing columns are fixedly connected to the outer part of the connecting ring. According to the utility model, elastic components such as the spring and the rubber column are ingeniously utilized to buffer vibration and impact, adverse effects generated by vehicle driving and motor operation are effectively reduced, stable operation of the exhaust fan is guaranteed, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of automotive exhaust fan technology, and in particular to a dynamic balancing structure for an automotive exhaust fan. Background Technology

[0002] A car exhaust fan is a ventilation device used in automobiles. It is mainly installed in specific parts of the car and is driven by a motor to rotate the fan blades, expelling stale air from inside the car and promoting the inflow of fresh air from outside, thereby improving the air quality and ventilation conditions inside the car.

[0003] The dynamic balancing structure of an automotive exhaust fan adjusts the blade mass distribution, such as by adding counterweights, changing blade thickness or material distribution, to minimize the inertial force and torque when the exhaust fan rotates. The detection equipment measures vibration through sensors to determine the location and magnitude of imbalance, so that adjustments can be made to ensure the efficient and stable operation of the exhaust fan.

[0004] In existing technologies, some automotive exhaust fans are subjected to continuous vibrations and impacts from road bumps and engine operation while the vehicle is in motion. Conventional exhaust fan structures lack effective buffering and protection. Under long-term strong vibration and impact, internal parts are prone to loosening, wear, or even damage, affecting the dynamic balance of the exhaust fan. This results in noise and performance degradation during operation, and also greatly shortens the service life of the exhaust fan, increasing maintenance costs and the risk of vehicle failure. Therefore, a dynamic balancing structure for automotive exhaust fans is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a dynamic balancing structure for an automotive exhaust fan, aiming to improve the problems of noise and performance degradation during operation in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dynamic balancing structure for an automotive exhaust fan includes a motor. An impeller shaft is fixedly connected to the drive end of the motor. Multiple connecting rods are fixedly connected to the outside of the impeller shaft. A spring is sleeved on the outside of each connecting rod. A collar is fixedly connected to the right side of one of the springs. A rubber post is disposed inside the collar. A connecting rod is slidably connected inside the collar. A spring is sleeved on the outside of the connecting rod. A connecting shaft is fixedly connected to the right side of the connecting rod. A connecting ring is disposed outside the connecting shaft. Multiple fixed posts are fixedly connected to the outside of the connecting ring. A connecting post is slidably connected inside each fixed post. A rubber post is disposed inside each fixed post. Multiple portable components for easy placement and removal of balance weights are provided inside the connecting shaft.

[0008] As a further description of the above technical solution:

[0009] The portable component includes a placement slot, a balance block is slidably connected inside the placement slot, two limiting slots are opened inside the balance block, and multiple fixing slots are opened inside the connecting shaft, with wedge blocks slidably connected inside the fixing slots.

[0010] As a further description of the above technical solution:

[0011] The outer side of the connecting rod is slidably connected to the inside of the collar, and the right side of the connecting rod and the left side of the rubber post are in contact.

[0012] As a further description of the above technical solution:

[0013] The left side of the second connecting rod is in contact with the right side of the first rubber column, and the left side of the second spring is fixedly connected to the right side of the collar;

[0014] As a further description of the above technical solution:

[0015] The left side of the second rubber column is in contact with the inner left wall of the fixed column, and the right side of the second rubber column is in contact with the left side of the connecting column.

[0016] As a further description of the above technical solution:

[0017] One of the wedge blocks has a spring three fixedly connected to its right side, and the right side of the spring three is fixedly connected to the inner wall of the right side of the fixing groove.

[0018] As a further description of the above technical solution:

[0019] A sliding block is fixedly connected to the front side of the balance block, and mounting bases are fixedly connected to the opposite sides of the plurality of connecting columns;

[0020] As a further description of the above technical solution:

[0021] The inner wall of the limiting groove is in contact with the outer side of the wedge block, and the outer side of the placement groove is opened inside the connecting shaft.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the connecting rod and the spring are compressed together, and the connecting rod and the rubber column are compressed together. At the same time, the reaction force of the connecting rod compresses the spring and the rubber column. The connecting column compresses the rubber column, thus realizing the clever use of elastic components such as springs and rubber columns to buffer vibration and impact, effectively reducing the adverse effects of vehicle driving and motor operation, ensuring the smooth operation of the exhaust fan, and extending the service life of the equipment.

[0024] 2. In this utility model, by moving the block to squeeze the balance block, the wedge block squeezes the spring three and then slides out of the limiting groove, so that the balance block can be easily taken out or placed. When it is necessary to place the balance block, the balance block is placed by moving the block, and then the wedge block is squeezed. Thus, by moving the block to squeeze the balance block, the wedge block can slide out of the limiting groove, and the operation of taking out or placing the balance block can be easily completed. It can be flexibly adjusted according to the actual balance of the exhaust fan, effectively improving the efficiency and accuracy of dynamic balance adjustment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the dynamic balance structure of an automotive exhaust fan proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the connecting ring of a dynamic balancing structure for an automotive exhaust fan proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the placement groove for the dynamic balancing structure of an automobile exhaust fan proposed in this utility model;

[0028] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 5 for Figure 2 Enlarged view at point B in the middle;

[0030] Figure 6 for Figure 3 Enlarged view of point C in the middle.

[0031] Legend:

[0032] 1. Motor; 2. Impeller shaft; 3. Connecting rod one; 4. Spring one; 5. Rubber column one; 6. Collar; 7. Connecting rod two; 8. Spring two; 9. Connecting shaft; 10. Connecting ring; 11. Fixing column; 12. Connecting column; 13. Rubber column two; 14. Placement slot; 15. Balance block; 16. Limiting slot; 17. Fixing slot; 18. Wedge block; 19. Spring three; 20. Moving block; 21. Mounting base. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a dynamic balancing structure for an automotive exhaust fan, comprising a motor 1, which serves as the power source for the exhaust fan. An impeller shaft 2 is fixedly connected to the drive end of the motor 1, and the impeller shaft 2 rotates under the force from the motor 1. Multiple connecting rods 3 are fixedly connected to the outside of the impeller shaft 2, and these connecting rods 3 also rotate under the force from the impeller shaft 2. A spring 4 is sleeved on the outside of each connecting rod 3, providing elastic support for its collar 6 and the connecting rod 3. A collar 6 is fixedly connected to the right side of one of the springs 4, and the collar 6 provides elastic support for the internal buffer assembly. For installation space and protection, the collar 6 has a rubber post 5 inside. The rubber post 5 has an elastic function and provides elastic buffering for the force transmitted from the impeller shaft 2 to the connecting rod 3 or from the connecting shaft 9 to the connecting rod 7. The connecting rod 7 is slidably connected inside the collar 6. The collar 6 provides limiting and guiding functions for the connecting rod 7. The connecting rod 7 is fitted with a spring 8 outside. The spring 8 has an elastic function and provides elastic support for its connecting shaft 9. The connecting shaft 9 is fixedly connected to the right side of the connecting rod 7. The connecting rod 7 then drives the connecting shaft 9 to rotate, and the connecting shaft 9 drives the external fan blades to rotate.

[0035] Reference Figure 2 and Figure 5 A connecting ring 10 is provided on the outside of the connecting shaft 9. The connecting ring 10 provides fixation and support for the connecting shaft 9. Multiple fixing posts 11 are fixedly connected to the outside of the connecting ring 10. The fixing posts 11 provide limiting and guiding functions for the connecting posts 12. The connecting posts 12 are slidably connected inside the fixing posts 11. The connecting posts 12 receive the force from the external mounting seat 21 to squeeze the rubber post 13 and thus buffer it. The rubber post 13 is provided inside the fixing posts 11. The rubber post 13 has an elastic function and provides elastic support for its connecting posts 12. Multiple portable components for easy placement and removal of the balance block 15 are opened inside the connecting shaft 9.

[0036] Reference Figure 3 and Figure 6 The portable component includes a placement slot 14 for placing a balance block 15. The balance block 15 is slidably connected inside the placement slot 14. The balance block 15 can be added or removed depending on the imbalance of the exhaust fan. Two limiting slots 16 are opened inside the balance block 15. The limiting slots 16 cooperate with the wedge block 18 to limit and fix the balance block 15. Multiple fixing slots 17 are opened inside the connecting shaft 9. The fixing slots 17 provide limiting and guiding functions for the wedge block 18. The wedge block 18 is slidably connected inside the fixing slot 17. The wedge block 18 receives the force from the spring 19 and is then inserted into the limiting slot 16 to limit and fix the balance block 15.

[0037] Reference Figures 1 to 3 The external sliding connection of connecting rod 13 is inside the collar 6. The collar 6 provides limiting and guiding functions for connecting rod 13. The right side of connecting rod 13 is in contact with the left side of rubber column 15. Connecting rod 13 is subjected to force from impeller shaft 2, which in turn compresses rubber column 15 and spring 14, thus providing cushioning. The left side of connecting rod 27 is in contact with the right side of rubber column 15. Connecting rod 27 is subjected to force from connecting shaft 9, which in turn compresses rubber column 15 and spring 28, thus providing cushioning. The left side of spring 28 is fixedly connected to the right side of collar 6. The collar 6 provides fixing and support for spring 28. The left side of rubber column 213 is in contact with the left inner wall of fixed column 11. Rubber column 213 is subjected to external force, which compresses the inner wall of fixed column 11, thus providing cushioning through its own elasticity.

[0038] The right side of the rubber column 13 and the left side of the connecting column 12 are in contact. When the mounting base 21 is subjected to external force, the rubber column 13 is squeezed by the connecting column 12. The elasticity of the rubber column 13 provides buffering. A spring 19 is fixedly connected to the right side of one of the wedge blocks 18. The spring 19 has an elastic function and provides elastic support. After the force is applied, the spring 19 can push the wedge block 18 to reset by its own elasticity. The right side of the spring 19 is fixedly connected to the inner wall of the right side of the fixing groove 17. The fixing groove 17 provides fixation and support for the spring 19.

[0039] A shift block 20 is fixedly connected to the front side of the balance block 15. The shift block 20 is used to squeeze the balance block 15 when the operator places or removes it, thereby squeezing the spring 19. After the balance block 15 is placed or removed, the elastic action of the spring 19 pushes the wedge block 18 to reset. A mounting base 21 is fixedly connected to the far side of the multiple connecting columns 12. The mounting base 21 is used to install and fix the fan. The inner wall of the limiting groove 16 is in contact with the outer side of the wedge block 18. The wedge block 18 and the limiting groove 16 cooperate to limit and fix the balance block 15. The outer side of the placement groove 14 is opened inside the connecting shaft 9. The connecting shaft 9 provides space for the placement groove 14.

[0040] Working principle: During use, motor 1 drives impeller shaft 2 to rotate. Impeller shaft 2 transmits power to connecting rod 7 inside collar 6 through connecting rod 1 3, thereby driving connecting shaft 9 and external fan blades to rotate. When motor 1 vibrates or when a vehicle travels and causes an impact, connecting rod 1 3 compresses spring 4 and rubber column 5. At the same time, the reaction force of connecting rod 2 7 compresses spring 2 8 and rubber column 1 5. The elasticity of the elastic components provides buffering. When mounting base 21 is subjected to external force, connecting column 12 compresses rubber column 13, thereby buffering the transmitted force. Thus, they work together to provide buffering and protection. These elastic components can effectively absorb and buffer energy, reduce the impact of vibration on the exhaust fan structure, and ensure the smooth operation of the exhaust fan.

[0041] When it is necessary to place or remove the balance block 15, the balance block 15 is installed in the placement groove 14 inside the connecting shaft 9. When it is necessary to adjust the dynamic balance of the exhaust fan, the operator uses the shift block 20 to press the balance block 15, so that the wedge block 18 presses the spring 19 and slides out from the limiting groove 16, thus making it easy to take out or place the balance block 15. When it is necessary to place the balance block 15, the shift block 20 is used to place the balance block 15, and then the wedge block 18 is pressed. When the balance block 15 is placed in the appropriate position, the elastic action of the spring 19 pushes the wedge block 18 to reset, so that it is re-locked into the limiting groove 16, thereby achieving the limiting and fixing of the balance block 15, which is convenient for flexible adjustment according to the actual balance of the exhaust fan.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dynamic balancing structure for an automotive exhaust fan, comprising a motor (1), characterized in that: The motor (1) is fixedly connected to an impeller shaft (2). Multiple connecting rods (3) are fixedly connected to the outside of the impeller shaft (2). A spring (4) is sleeved on the outside of the connecting rod (3). A collar (6) is fixedly connected to the right side of one of the springs (4). A rubber column (5) is provided inside the collar (6). A connecting rod (7) is slidably connected inside the collar (6). A spring (8) is sleeved on the outside of the connecting rod (7). A connecting shaft (9) is fixedly connected to the right side of the connecting rod (7). A connecting ring (10) is provided outside the connecting shaft (9). Multiple fixed columns (11) are fixedly connected to the outside of the connecting ring (10). A connecting column (12) is slidably connected inside the fixed column (11). A rubber column (13) is provided inside the fixed column (11). Multiple portable components for easy placement and removal of the balance block (15) are provided inside the connecting shaft (9).

2. The dynamic balancing structure of an automotive exhaust fan according to claim 1, characterized in that: The portable component includes a placement slot (14), a balance block (15) is slidably connected inside the placement slot (14), two limiting slots (16) are opened inside the balance block (15), and multiple fixing slots (17) are opened inside the connecting shaft (9), and a wedge block (18) is slidably connected inside the fixing slot (17).

3. The dynamic balancing structure of an automotive exhaust fan according to claim 1, characterized in that: The outer side of the connecting rod (3) is slidably connected to the inside of the collar (6), and the right side of the connecting rod (3) is in contact with the left side of the rubber column (5).

4. The dynamic balancing structure of an automotive exhaust fan according to claim 1, characterized in that: The left side of the connecting rod 2 (7) is in contact with the right side of the rubber column 1 (5), and the left side of the spring 2 (8) is fixedly connected to the right side of the collar (6).

5. The dynamic balancing structure of an automotive exhaust fan according to claim 1, characterized in that: The left side of the second rubber column (13) is in contact with the left inner wall of the fixed column (11), and the right side of the second rubber column (13) is in contact with the left side of the connecting column (12).

6. The dynamic balancing structure of an automotive exhaust fan according to claim 2, characterized in that: One of the wedge blocks (18) is fixedly connected to a spring three (19) on its right side, and the right side of the spring three (19) is fixedly connected to the right inner wall of the fixing groove (17).

7. The dynamic balancing structure of an automotive exhaust fan according to claim 2, characterized in that: A moving block (20) is fixedly connected to the front side of the balance block (15), and a mounting base (21) is fixedly connected to the opposite side of the plurality of connecting columns (12).

8. The dynamic balancing structure of an automotive exhaust fan according to claim 2, characterized in that: The inner wall of the limiting groove (16) is in contact with the outer side of the wedge block (18), and the outer side of the placement groove (14) is opened inside the connecting shaft (9).

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