Direct-current fan with flow guide mechanism

Abstract

The utility model relates to the technical field of direct current fans, and discloses a direct current fan with a flow guide mechanism, which comprises a fan body, the side wall of the fan body is fixedly connected with a fixing frame, an adjusting assembly is arranged in the fixing frame, the side wall of the fixing frame is fixedly connected with a connecting frame, and a fixing assembly is arranged on the side wall of the connecting frame. The fixing assembly comprises a sliding rod, the sliding rod is fixedly connected into the fixing frame, the side wall of the sliding rod is fixedly connected with a fixing block, the side wall of the fixing block is rotatably connected with a rotating rod, the side wall of the sliding rod is slidably connected with a sliding block, and the side wall of the sliding block is fixedly connected with a baffle. The hydraulic rod is started to push the sliding block on one side to slide along the sliding rod, the connecting rod and the rotating rod are driven to enable the sliding blocks on the two sides to move inwards, then the baffle is driven to slide in the fixing frame to adjust the size of the air opening, the problems that the diameter of the air outlet of the direct-current fan is fixed, and air pressure cannot be adjusted according to needs are solved, and the adaptability of the direct-current fan to different air pressure scenes is improved.

Description

Technical Field

[0001] This utility model relates to the field of DC fan technology, and in particular to a DC fan with a flow guiding mechanism. Background Technology

[0002] Air circulation and regulation are crucial in numerous industrial production, daily life, and specific technological applications. For example, in the heat dissipation of electronic equipment, appropriate airflow and air pressure are necessary to maintain stable operation; in indoor ventilation systems, ventilation volume and airflow speed must be precisely controlled based on different space sizes and personnel densities. DC fans with airflow guiding mechanisms, with their high efficiency, energy saving, and strong controllability, have become key equipment for meeting these air conditioning needs. They can provide stable and suitable airflow to the system under different operating conditions, thereby meeting the air environment requirements of various scenarios.

[0003] Traditional DC fans typically consist of a DC motor, an impeller, and a simple casing. Their working principle involves the DC motor driving the impeller to rotate, thus creating airflow. In some designs with airflow guidance functions, a fixed-shape guide vane may be used, installed at the fan's outlet to guide the airflow direction. The angle and shape of these guide vanes are determined during design and manufacturing and cannot be adjusted during fan operation. When the fan starts, the motor drives the impeller to rotate at high speed. Air enters through the inlet, is accelerated by the impeller, and then flows out of the fan along the direction set by the fixed guide vane.

[0004] The fixed diameter of its air outlet makes it difficult to adjust the pressure of the air blown out by the fan. When faced with diverse air pressure delivery requirements in different scenarios, traditional DC fans cannot flexibly cope with them, greatly limiting their application range and applicability. Therefore, a DC fan with a flow guiding mechanism is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a DC fan with a flow guiding mechanism, which aims to improve the problem that the outlet diameter of the DC fan in the prior art is fixed and the blowing pressure cannot be adjusted to meet different air pressure delivery requirements.

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

[0007] A DC fan with a flow guiding mechanism includes a fan body, a fixed frame fixedly connected to the side wall of the fan body, an adjustment component disposed inside the fixed frame, a connecting frame fixedly connected to the side wall of the fixed frame, and a fixed component disposed on the side wall of the connecting frame.

[0008] The fixing component includes a slide rod, which is fixedly connected inside the fixing frame. A fixing block is fixedly connected to the side wall of the slide rod. A rotating rod is rotatably connected to the side wall of the fixing block. A slider is slidably connected to the side wall of the slide rod. A baffle is fixedly connected to the side wall of the slider. A connecting rod is rotatably connected inside the slider. The side wall of the connecting rod is rotatably connected to the side wall of the rotating rod. A hydraulic rod is provided inside the fixing block.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes a locking block, and the side wall of the connecting frame is provided with a dust cover;

[0011] As a further description of the above technical solution:

[0012] The connecting frame has a slot inside and a recess inside;

[0013] As a further description of the above technical solution:

[0014] The dust cover is fixedly connected to a locking post on its side wall, and the locking block is slidably connected inside the locking post.

[0015] As a further description of the above technical solution:

[0016] The locking pin is slidably connected inside the locking slot, and the locking block is slidably connected inside the recessed hole;

[0017] As a further description of the above technical solution:

[0018] A spring is installed inside the locking post. One end of the spring is fixedly connected to the side wall of the locking block, and the other end of the spring is fixedly connected to the inside of the locking post.

[0019] As a further description of the above technical solution:

[0020] The baffle is slidably connected inside the fixed frame, and the output end of the hydraulic rod is connected to the slider on one side.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the hydraulic rod is activated to push the slider on one side to slide along the side wall of the slide bar. The slider drives the connecting rod to rotate, and the connecting rod drives the rotating rod, causing the sliders on both sides to move towards the center, which in turn causes the baffle to slide within the fixed frame, thereby realizing the adjustment of the air outlet size. This solves the problem that the outlet diameter of the DC fan is fixed and the blowing pressure cannot be adjusted to meet different air pressure delivery requirements. The above technical solution improves the adaptability of the DC fan to different air pressure requirements.

[0023] 2. In this utility model, when cleaning the dust cover, pulling the dust cover moves the locking post along the locking groove. The locking block is squeezed and compressed into the locking post, compressing the spring and disengaging from the concave hole, thus releasing the fixation of the dust cover and allowing it to be removed for cleaning. This solves the problem that the traditional method of using bolts to fasten the dust cover and the need for tools during disassembly is relatively troublesome. The above technical solution improves the convenience of cleaning the dust cover and the efficiency of maintenance. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a DC fan with a flow guiding mechanism proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the fixed frame of a DC fan with a flow guiding mechanism proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of a dust cover structure for a DC fan with a flow guiding mechanism proposed in this utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Fan body; 2. Fixed frame; 3. Connecting frame; 4. Fixed block; 5. Rotating rod; 6. Sliding block; 7. Connecting rod; 8. Hydraulic rod; 9. Baffle; 10. Slide rod; 11. Dust cover; 12. Slot; 13. Recessed hole; 14. Locking post; 15. Locking block; 16. Spring. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 and Figure 2This utility model provides an embodiment of a DC fan with a flow guiding mechanism, comprising a fan body 1, a fixed frame 2 fixedly connected to the side wall of the fan body 1, an adjustment component disposed inside the fixed frame 2, a connecting frame 3 fixedly connected to the side wall of the fixed frame 2, and a fixed component disposed on the side wall of the connecting frame 3; the fixed component includes a slide rod 10, which is fixedly connected inside the fixed frame 2, a fixed block 4 fixedly connected to the side wall of the slide rod 10, a rotating rod 5 rotatably connected to the side wall of the fixed block 4, a slider 6 slidably connected to the side wall of the slide rod 10, a baffle 9 fixedly connected to the side wall of the slider 6, a connecting rod 7 rotatably connected inside the slider 6, and a connecting rod 7 rotatably connected to the side wall of the rotating rod 5; a hydraulic rod 8 disposed inside the fixed block 4; a baffle 9 slidably connected inside the fixed frame 2; the baffle 9 is used to change the effective ventilation area of ​​the air outlet; the output end of the hydraulic rod 8 is connected to one side of the slider 6; and the hydraulic rod 8 is used as the power source for the entire adjustment system.

[0032] When the size of the air vent needs to be adjusted, the hydraulic rod 8 is activated. As the power source for the entire adjustment system, the hydraulic rod 8 stably outputs thrust, which acts on one side of the slider 6, causing the slider 6 to slide along the side wall of the slide rod 10. The slide rod 10 provides a sliding track for the slider 6, ensuring the accuracy of the slider 6's movement direction and making the adjustment process smooth. During the movement of the slider 6, the connecting rod 7 connected to its side wall rotates due to the displacement of the slider 6. The connecting rod 7 here plays a role in force transmission and motion conversion, transforming the linear motion of the slider 6 into rotation. The connecting rod 7 is connected to the rotating rod 5, and its rotation in turn drives the rotating rod 5 to rotate. Both ends of the rotating rod 5 are connected to the connecting rod 7, and its rotation allows the sliders 6 on both sides to move synchronously towards the center. This synchronous movement design ensures the symmetry of the movement of the baffle 9. The baffle 9 is installed between the two sliders 6. As the sliders 6 move towards the center, the baffle 9 slides inside the fixed frame 2. By changing the position of the baffle 9 within the fixed frame 2, the effective ventilation area of ​​the air vent is directly changed, thereby adjusting the size of the air vent to meet the ventilation requirements in different scenarios.

[0033] Reference Figure 3 and Figure 4 The fixing component includes a locking block 15, a dust cover 11 is provided on the side wall of the connecting frame 3, the dust cover 11 is used to block dust, impurities and other things from entering the ventilation system, a locking groove 12 is provided inside the connecting frame 3, a recess 13 is provided inside the connecting frame 3, a locking post 14 is fixedly connected to the side wall of the dust cover 11, the locking block 15 is slidably connected to the inside of the locking post 14, the locking post 14 is slidably connected to the inside of the locking groove 12, the locking block 15 is slidably connected to the inside of the recess 13, a spring 16 is provided inside the locking post 14, the spring 16 is used for rebound reset, one end of the spring 16 is fixedly connected to the side wall of the locking block 15, and the other end of the spring 16 is fixedly connected to the inside of the locking post 14;

[0034] When cleaning the dust cover 11, pull it. The dust cover 11 is installed at the air vent and its main function is to block dust and impurities from entering the ventilation system, ensuring the cleanliness of the system and extending the service life of the equipment. Pulling the dust cover 11 moves the locking post 14 connected to it. The locking post 14 slides along the inside of the locking groove 12, which is set on a fixed structure and serves to position and guide the locking post 14, ensuring the accuracy of the dust cover 11's trajectory during movement. During the movement of the locking post 14, the movable locking block 15 installed inside the locking post 14 is squeezed by the edge of the locking groove 12, thus entering the locking post 14. During this process, the locking block 15 compresses the spring 16 inside the locking post 14, causing the spring 16 to store elastic potential energy. Under normal conditions, the locking block 15 extends out of the locking post 14 and embeds into the recess 13. Cooperating with the locking block 15, the dust cover 11 is fixed in the corresponding position, preventing displacement due to ventilation airflow or other factors. When the locking block 15 is squeezed out of the recess 13, the fixation of the dust cover 11 is released. At this time, the dust cover 11 can be removed and cleaned to restore its dustproof performance.

[0035] Working principle: When it is necessary to adjust the size of the air vent, the hydraulic rod 8 is activated to push the slider 6 on one side to slide against the side wall of the slide rod 10. The movement of the slider 6 causes the connecting rod 7 on the side wall to rotate. The connecting rod 7 drives the rotating rod 5 to rotate, which in turn causes the sliders 6 on both sides to move towards the center, so that the baffle 9 slides inside the fixed frame 2, thereby adjusting the size of the air vent.

[0036] When cleaning the dust cover 11, pull the dust cover 11 to move it, causing the locking post 14 to move inside the locking groove 12. The locking block 15 is squeezed into the locking post 14, which squeezes the spring 16, causing the locking block 15 to disengage from the recess 13, thus releasing the fixation of the dust cover 11. Then, remove it for cleaning.

[0037] 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 DC fan with a flow guiding mechanism, comprising a fan body (1), characterized in that: The fan body (1) is fixedly connected to a fixed frame (2) on its side wall. An adjustment component is provided inside the fixed frame (2). A connecting frame (3) is fixedly connected to the side wall of the fixed frame (2). A fixed component is provided on the side wall of the connecting frame (3). The fixing assembly includes a slide rod (10), which is fixedly connected inside the fixing frame (2). A fixing block (4) is fixedly connected to the side wall of the slide rod (10). A rotating rod (5) is rotatably connected to the side wall of the fixing block (4). A slider (6) is slidably connected to the side wall of the slide rod (10). A baffle (9) is fixedly connected to the side wall of the slider (6). A connecting rod (7) is rotatably connected inside the slider (6). The side wall of the connecting rod (7) is rotatably connected to the side wall of the rotating rod (5). A hydraulic rod (8) is provided inside the fixing block (4).

2. A DC fan with a flow guiding mechanism according to claim 1, characterized in that: The fixing component includes a locking block (15), and the side wall of the connecting frame (3) is provided with a dust cover (11).

3. A DC fan with a flow guiding mechanism according to claim 2, characterized in that: The connecting frame (3) has a slot (12) inside and a recess (13) inside.

4. A DC fan with a flow guiding mechanism according to claim 3, characterized in that: The dust cover (11) has a fixed connection to a locking post (14) on its side wall, and the locking block (15) is slidably connected inside the locking post (14).

5. A DC fan with a flow guiding mechanism according to claim 4, characterized in that: The locking pin (14) is slidably connected inside the locking slot (12), and the locking block (15) is slidably connected inside the recess (13).

6. A DC fan with a flow guiding mechanism according to claim 5, characterized in that: A spring (16) is provided inside the locking post (14). One end of the spring (16) is fixedly connected to the side wall of the locking block (15), and the other end of the spring (16) is fixedly connected to the inside of the locking post (14).

7. A DC fan with a flow guiding mechanism according to claim 1, characterized in that: The baffle (9) is slidably connected inside the fixed frame (2), and the output end of the hydraulic rod (8) is connected to the slider (6) on one side.

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