Impeller structure of ventilator

Abstract

The utility model discloses an impeller structure of a ventilator. The impeller structure comprises a case, a partition plate, a heat exchanger frame and impellers, wherein the partition plate is arranged in the case; the heat exchanger frame is arranged in the middle section of the partition plate and is arranged in the case; the impeller comprises a shell installed on the partition plate, a bottom plate arranged in the shell, a disc arranged on the bottom plate, a supporting rod arranged on the bottom plate, a limiting rod arranged on the disc and blades connected to the supporting rod and the limiting rod in a sleeving mode, and the blades are provided with through holes and U-shaped grooves. The supporting rods penetrate through the blades and are connected with the cover plate; the position of the gear is locked through the lock teeth, so that the bottom plate and the disc are in a locked state, the gear drives the disc to rotate to adjust the inclination angles of the blades through movement of the lock teeth, high air volume can be generated according to different inclination angles of the blades, and the fan is suitable for application occasions needing a large amount of air to circulate and can also generate proper static pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, and specifically to an impeller structure of a ventilator. Background Art

[0002] As a common ventilation equipment, the ventilator is widely used in various places such as residential buildings, commercial buildings, and industrial factories to improve the indoor air quality, remove the dirty air indoors, and introduce fresh air.

[0003] With the improvement of people's awareness of the quality of life and environmental protection, the requirements for ventilators are getting higher and higher. It is not only required to have high ventilation efficiency, but also required to have good energy-saving performance and low noise.

[0004] The traditional impeller structure of the ventilator is relatively simple, usually composed of a single impeller and a simple driving device. However, in actual applications, there are certain limitations, such as low ventilation efficiency, high energy consumption, and high noise. Summary of the Utility Model

[0005] Utility Model Purpose: To provide an impeller structure of a ventilator to solve the above problems existing in the prior art.

[0006] Technical Solution: An impeller structure of a ventilator, comprising:

[0007] A chassis, a partition installed in the chassis, a heat exchanger frame arranged in the middle section of the partition and placed in the chassis, and impellers installed on the partition and located on both sides of the heat exchanger frame;

[0008] The impeller includes a housing installed on the partition, a bottom plate arranged in the housing, a disc placed on the bottom plate, a support rod arranged on the bottom plate, a limiting rod arranged on the disc, blades sleeved on the support rod and the limiting rod, through holes and U-shaped grooves are provided on the blades, and the support rod passes through the blades and is connected with a cover plate;

[0009] A groove is further opened on one side of the bottom plate, teeth are provided on the disc located in the groove, the teeth are engaged with a gear installed in the groove, and the gear is engaged with a locking tooth covering the groove.

[0010] In a further embodiment, the chassis is provided with at least four air holes, and the four air holes are isolated from each other by the partition and the heat exchanger frame, and two of the air holes are connected with the housing.

[0011] In a further embodiment, there are multiple support rods, blades and limiting rods, the heat exchanger frame is provided with multiple through holes, and an elastic pad is provided at the connection between the housing and the partition.

[0012] In a further embodiment, the disc is movably connected to the bottom plate. The disc and the bottom plate are threadedly connected to the output shaft of the motor through a nut. The motor is threadedly connected to the housing, and the output shaft of the motor is movably connected to the housing.

[0013] In a further embodiment, the support rod is fixedly connected to the bottom plate. The limiting rod is fixedly connected to the disc. The through hole is in clearance fit with the support rod. The U-shaped groove rod is in clearance fit with the limiting rod. The support rod is fixedly connected to the cover plate.

[0014] In a further embodiment, the teeth are fixedly connected to the disc, and the teeth are arranged in sequence on the disc within the groove.

[0015] In a further embodiment, the gear is movably connected to the bottom plate, and the locking teeth are in sliding fit with the groove.

[0016] Beneficial effects: The present utility model discloses an impeller structure of a ventilator. By locking the position of the gear with the locking teeth, the bottom plate and the disc are in a locked state. The movement of the locking teeth causes the gear to drive the disc to rotate to adjust the inclination angle of the blades. When the blades are inclined, it effectively guides the air flow, reduces turbulence and eddy currents, thereby improving the overall efficiency of the fan; according to different inclination angles of the blades, a higher air volume can be generated, which is suitable for application scenarios that require a large amount of air circulation, and can also generate a suitable static pressure. A suitable blade inclination angle can improve the stability of the impeller operation, reduce vibration and imbalance problems. Through the blade design with through holes and U-shaped grooves, the direction of the air flow can be controlled, making the air flow more uniform. Description of the Drawings

[0017] Figure 1 is a three-dimensional view of the chassis of the present utility model.

[0018] Figure 2 is a front view sectional view of the chassis of the present utility model.

[0019] Figure 3 is a top view sectional view of the chassis of the present utility model.

[0020] Figure 4 is a semi-sectional schematic view of the bottom plate of the present utility model.

[0021] Figure 5 is a three-dimensional view of the blade of the present utility model.

[0022] Figure 6 is a disassembled schematic view of the impeller of the present utility model.

[0023] Figure 7 is a three-dimensional view of the impeller of the present utility model.

[0024] The reference numerals are: 1, chassis; 2, outer shell; 11, heat exchanger frame; 12, partition; 13, air hole; 21, bottom plate; 22, disc; 23, nut; 24, cover plate; 25, blade; 211, support rod; 212, groove; 213, gear; 214, locking tooth; 221, tooth; 222, limiting rod; 251, U-shaped groove; 252, through hole. Detailed implementation mode

[0025] The utility model relates to an air exchanger impeller structure. The bottom plate and the disc are in a locked state by locking the position of the gear with a locking tooth. The movement of the locking tooth drives the disc to rotate by the gear to adjust the inclination angle of the blade. When the blade is inclined, it effectively guides the air flow, reduces turbulence and eddy current, thereby improving the overall efficiency of the fan; according to different inclination angles of the blade, a higher air volume can be generated, which is suitable for application occasions that require a large amount of air circulation, and a suitable static pressure can also be generated. A suitable blade inclination angle can improve the working stability of the impeller, reduce vibration and imbalance problems. Through the blade design with through holes and U-shaped grooves, the direction of the air flow can be controlled, making the air flow more uniform. The following is a specific description of the solution through specific embodiments.

[0026] Referring to Figures 1 - 7 as shown, an air exchanger impeller structure includes:

[0027] a chassis 1, a partition 12 installed in the chassis 1, a heat exchanger frame 11 arranged in the middle section of the partition 12 and placed in the chassis 1, and impellers installed on the partition 12 and on both sides of the heat exchanger frame 11; at least four air holes 13 are provided on the chassis 1, and the four air holes 13 are isolated from each other by the partition 12 and the heat exchanger frame 11, and two of the air holes 13 are connected to the outer shell 2. A plurality of support rods 211, blades 25 and limiting rods 222 are provided, and a plurality of through holes 252 are provided on the heat exchanger frame 11.

[0028] The impeller includes a housing 2 mounted on the partition 12, a bottom plate 21 disposed within the housing 2, a disc 22 placed on the bottom plate 21, a support rod 211 disposed on the bottom plate 21, a limiting rod 222 disposed on the disc 22, and blades 25 sleeved on the support rod 211 and the limiting rod 222. Through holes 252 and U-shaped grooves 251 are provided on the blades 25. The support rod 211 passes through the blade 25 and is connected to the cover plate 24. An elastic pad is provided at the connection between the housing 2 and the partition 12. The disc 22 is movably connected to the bottom plate 21. The disc 22 and the bottom plate 21 are threadedly connected to the output shaft of the motor by a nut 23. The motor is threadedly connected to the housing 2. The output shaft of the motor is movably connected to the housing 2. The support rod 211 is fixedly connected to the bottom plate 21. The limiting rod 222 is fixedly connected to the disc 22. The through hole 252 has a clearance fit with the support rod 211. The U-shaped groove 251 has a clearance fit with the limiting rod 222. The support rod 211 is fixedly connected to the cover plate 24.

[0029] On one side of the bottom plate 21, a groove 212 is further provided. The disc 22 is located within the groove 212 and is provided with teeth 221. The teeth 221 are engaged with a gear 213 mounted within the groove 212. The gear 213 is engaged with a locking tooth 214 covering the groove 212. The teeth 221 are fixedly connected to the disc 22. The teeth 221 are arranged in sequence on the disc 22 within the groove 212. The gear 213 is movably connected to the bottom plate 21. The locking tooth 214 is slidably fitted with the groove 212.

[0030] Working principle: When it is necessary to adjust the inclination angle of the blade 25, move the position of the locking tooth 214 within the groove 212. The movement of the locking tooth 214 causes the gear 213 to drive the disc 22 to rotate, thereby changing the distance between the support rod 211 and the limiting rod 222. After the locking tooth 214 moves, it is locked. The chassis 1 is provided with at least four air holes 13, two of which are connected to the housing 2. When the impeller rotates, the blades 25 on one side inhale external air, and the blades 25 on the other side discharge internal air. The partition 12 ensures the isolation of the incoming and outgoing airflows. The heat exchanger frame 11 locks the position of the heat exchanger. The partition 12 divides the space of the chassis 1 into different regions to isolate different airflows;

[0031] For the heat exchanger on the heat exchanger frame 11, heat exchange can occur between the intake and exhaust, improving the energy utilization rate;

[0032] The motor drives the base plate 21 and the disc 22 to rotate. The disc 22 meshes with the gear 213 through the teeth 221, and the gear 213 then meshes with the locking tooth 214 to ensure the locking of the disc 22 and the base plate 21. According to the inclination angle adjustment of the blade 25, the moving position of the locking tooth 214 is controlled. The blade 25 is fixed on the support rod 211 and the limiting rod 222, and the rotation of the base plate 21 drives the blade 25 to push the air flow;

[0033] An elastic pad is provided at the connection between the housing 2 and the partition 12 to ensure that no noise is generated during the operation of the equipment.

[0034] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the protection scope of the present invention.

Claims

1. An impeller structure of a ventilation machine, comprising: A chassis, a partition installed inside the chassis, a heat exchanger rack arranged in the middle section of the partition and placed inside the chassis, and impellers installed on the partition and located on both sides of the heat exchanger rack; It is characterized in that the impeller includes a housing installed on the partition, a bottom plate arranged inside the housing, a disc placed on the bottom plate, a support rod arranged on the bottom plate, a limiting rod arranged on the disc, and blades sleeved on the support rod and the limiting rod. Through holes and U-shaped grooves are arranged on the blades, and the support rod passes through the blade and is connected to a cover plate; A groove is further formed on one side of the bottom plate. The disc is located in the groove and is provided with teeth, and the teeth are engaged with a gear installed in the groove. The gear is engaged with a locking tooth covering the groove.

2. The impeller structure of a ventilation machine according to claim 1, characterized in that: The chassis is provided with at least four air holes, and the four air holes are isolated from each other by the partition and the heat exchanger rack, and two of the air holes are connected to the housing.

3. The impeller structure of a ventilation machine according to claim 1, characterized in that: There are multiple support rods, blades and limiting rods, the heat exchanger rack is provided with multiple through holes, and an elastic pad is arranged at the connection between the housing and the partition.

4. The impeller structure of a ventilation machine according to claim 1, characterized in that: The disc is movably connected to the bottom plate, the disc and the bottom plate are threadedly connected to the output shaft of the motor through a nut, the motor is threadedly connected to the housing, and the output shaft of the motor is movably connected to the housing.

5. The impeller structure of a ventilator according to claim 1, characterized in that: The support rod is fixedly connected to the bottom plate, the limiting rod is fixedly connected to the disc, the through hole is in clearance fit with the support rod, the U-shaped groove is in clearance fit with the limiting rod, and the support rod is fixedly connected to the cover plate.

6. The impeller structure of a ventilation machine according to claim 1, characterized in that: The teeth are fixedly connected to the disc, and the teeth are arranged in sequence on the disc in the groove.

7. The impeller structure of a ventilation machine according to claim 1, characterized in that: The gear is movably connected to the bottom plate, and the locking tooth is in sliding fit with the groove.

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