Evaporation brushless fan with noise reduction function

Abstract

The evaporation brushless fan with the noise reduction function comprises a shell and a base, an inlet is formed in the front side of the shell, an outlet is formed in the right side of the shell, a base table is fixedly installed at the upper end of the base, a containing groove is formed in the middle side of the upper end of the base table, and the shell is fixedly connected to the front side of the base table; a sponge mat is fixedly installed in the containing groove, a motor is fixedly installed on the sponge mat, the motor is fixedly connected to the rear end of the shell, and a rotating shaft is fixedly installed at the output end of the motor. According to the technical scheme, the evaporation brushless fan is characterized by having the noise reduction function. A comprehensive noise reduction system is formed by multiple noise reduction means such as motor shock absorption, sound absorption materials and separation nets. Various noise reduction means complement each other and jointly act on noise reduction of the fan, and therefore the noise reduction effect more remarkable than that of a traditional air duct structure is achieved.

Description

Technical Field

[0001] The invention relates to an evaporative brushless fan, and more particularly to an evaporative brushless fan with a noise reduction function. Background Art

[0002] Evaporative brushless fans are a special type of fan that is mainly used in evaporative cooling systems to promote heat dissipation by accelerating gas flow. Compared with traditional brushed fans, brushless fans use brushless DC motors, which have higher efficiency, longer service life and lower maintenance costs.

[0003] After searching, the Chinese patent document with the authorization announcement number CN 203051224 U discloses a brushless evaporation fan, wherein the base is provided with the first and second wind wheel installation areas and the motor installation area located between the two wind wheel installation areas; the first wind wheel installation area is provided with a first wind wheel housing, and the first wind wheel housing is provided with a first wind wheel; the second wind wheel installation area is provided with a second wind wheel housing, and the second wind wheel housing is provided with a second wind wheel; the installation area is provided with a centrifugal double-axis fan, and the double-axis fan is coaxial with the first wind wheel and the second wind wheel respectively; the first wind wheel housing includes a first wind wheel lower housing and a first wind wheel upper housing, the first wind wheel lower housing is fixed on the base, the second wind wheel housing includes a second wind wheel lower housing and a second wind wheel upper housing, the second wind wheel lower housing is fixed on the base, and the first wind wheel upper housing and the second wind wheel upper housing are connected into one by a connecting plate; the base is provided with air outlets at the first wind wheel and the second wind wheel. The utility model adopts a brushless fan and adopts a reasonable air duct structure, so that the evaporation fan has less noise during operation. The above-mentioned prior art has the following defects in use: the device uses a duct structure to reduce the noise during fan operation. Although the design of the duct structure can reduce the spread of noise to a certain extent, its effect is limited by many factors. For example, the shape, size and layout of the duct will affect the noise reduction effect. If the duct design is unreasonable, such as too many elbows, cross-section mutations, etc., it will lead to increased noise.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an evaporative brushless fan with noise reduction function, by placing the fan motor on an arc-shaped sponge pad, and fixing a ring-shaped sound-absorbing cotton inside the fan housing, and providing a detachable partition net inside the inlet and outlet. This design combines multiple noise reduction means such as motor shock absorption, sound-absorbing materials and partition nets to form a comprehensive noise reduction system. Various noise reduction means complement each other and work together to reduce the fan noise, thereby achieving a more significant noise reduction effect than the traditional air duct structure.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an evaporative brushless fan with a noise reduction function, comprising a shell and a base, the front side of the shell is provided with an inlet, the right side of the shell is provided with an outlet, the upper end of the base is fixedly installed with a base, the middle side of the upper end of the base is provided with a placement groove, the shell is fixedly connected to the front side of the base, a sponge pad is fixedly installed in the placement groove, a motor is fixedly installed on the sponge pad, and the motor is fixedly connected to the rear end of the shell, a rotating shaft is fixedly installed at the output end of the motor, an impeller is fixedly installed on the outer surface of the rotating shaft, sound-absorbing cotton is fixedly installed on the inner wall of the shell, and a partition net is movably provided in the inlet and the outlet.

[0007] The present invention is further configured as follows: the sound-absorbing cotton is configured in a circular ring shape.

[0008] The present invention is further configured as follows: a card slot is provided in the inlet, a card block is slidably provided in the card slot, and the card block is fixedly connected to the partition net.

[0009] The present invention is further configured such that: both the front and rear ends of the outlet are movably interlaced and connected with a positioning bolt.

[0010] The present invention is further configured as follows: the sponge pad is configured in an arc shape.

[0011] The present invention is further configured such that: the inlet and the outlet are both communicated with the interior of the shell.

[0012] In summary, the present invention has the following beneficial effects:

[0013] 1. By placing the fan motor on an arc-shaped sponge pad, fixing a ring-shaped sound-absorbing cotton inside the fan housing, and setting a detachable partition net at the inlet and outlet, this design combines multiple noise reduction methods such as motor shock absorption, sound-absorbing materials and partition nets to form a comprehensive noise reduction system. Various noise reduction methods complement each other and work together to reduce fan noise, thereby achieving a more significant noise reduction effect than traditional air duct structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0016] Figure 3 It is a schematic diagram of the front cross-section structure of the housing of the present invention.

[0017] In the figure: 1. Shell; 2. Base; 3. Inlet; 4. Outlet; 5. Base; 6. Placement slot; 7. Sponge pad; 8. Motor; 9. Rotating shaft; 10. Impeller; 11. Sound-absorbing cotton; 12. Partition net; 13. Slot; 14. Block; 15. Positioning bolt. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The present invention is described in detail below in conjunction with the accompanying drawings.

[0022] An evaporative brushless fan with noise reduction function, such as Figures 1 to 3As shown, it includes a shell 1 and a base 2, an inlet 3 is provided on the front side of the shell 1, an outlet 4 is provided on the right side of the shell 1, a base 5 is fixedly installed on the upper end of the base 2, a placement groove 6 is opened on the middle side of the upper end of the base 5, the inlet 3 and the outlet 4 are both connected to the inside of the shell 1, the shell 1 is fixedly connected to the front side of the base 5, a sponge pad 7 is fixedly installed in the placement groove 6, the sponge pad 7 is arranged in an arc shape, a motor 8 is fixedly installed on the sponge pad 7, and the motor 8 is fixedly connected to the rear end of the shell 1, and a rotating shaft 9 is fixedly installed on the output end of the motor 8. The outer surface of the rotating shaft 9 is fixedly mounted with an impeller 10, and the inner wall of the housing 1 is fixedly mounted with a sound-absorbing cotton 11, which is arranged in a circular ring shape. A partition net 12 is movably arranged in the inlet 3 and the outlet 4. By placing the motor 8 of the fan on the arc-shaped sponge pad 7, and the ring-shaped sound-absorbing cotton 11 is fixedly arranged inside the fan housing 1, and a detachable partition net 12 is arranged in the inlet 3 and the outlet 4, the arc-shaped sponge pad 7 has good shock absorption performance and can effectively absorb the vibration and noise generated when the motor 8 is running. This design reduces the contribution of the vibration of the motor 8 to the overall noise of the fan, thereby achieving a better noise reduction effect. The ring-shaped sound-absorbing cotton 11 is fixed inside the fan housing 1, and its function is to absorb the sound wave energy generated by the operation of the fan impeller 10 and convert it into heat energy, thereby reducing the noise level. The noise reduction effect of the sound-absorbing cotton 11 is related to its material, thickness and density. Choosing a suitable sound-absorbing cotton 11 can significantly improve the noise reduction effect. The removable partition 12 set in the inlet and outlet 4 of the fan 3 can not only prevent foreign matter from entering the fan, causing damage or increasing noise, but also rectify the airflow to a certain extent, reducing the noise generated by airflow disturbance. At the same time, the disassembly design of the partition 12 is also convenient for cleaning and maintenance, which helps to maintain the noise reduction performance of the fan. This design combines multiple noise reduction methods such as motor 8 shock absorption, sound-absorbing materials and partitions 12 to form a comprehensive noise reduction system. Various noise reduction methods complement each other and work together to reduce the noise of the fan, thereby achieving a more significant noise reduction effect than the traditional air duct structure.

[0023] like Figure 1 As shown, a card slot 13 is opened in the inlet 3, and a card block 14 is slidably arranged in the card slot 13. The card block 14 and the partition net 12 are fixedly connected. When the card block 14 slides forward in the card slot 13, the partition net 12 in the inlet 3 is driven to detach from the inlet 3 for replacement.

[0024] like Figure 1 As shown, both the front and rear ends of the outlet 4 are movably connected with a positioning bolt 15, and the partition net 12 in the outlet 4 can be easily disassembled and replaced by rotating the positioning bolt 15.

[0025] Working principle: The motor 8 of the fan is placed on the arc-shaped sponge pad 7, and a ring-shaped sound-absorbing cotton 11 is fixed inside the fan housing 1, and a detachable partition 12 is set inside the inlet 3 and the outlet 4. The arc-shaped sponge pad 7 has good shock absorption performance and can effectively absorb the vibration and noise generated when the motor 8 is running. This design reduces the contribution of the vibration of the motor 8 to the overall noise of the fan, thereby achieving a better noise reduction effect. The ring-shaped sound-absorbing cotton 11 is fixed inside the fan housing 1, and its function is to absorb the sound wave energy generated when the fan impeller 10 is running, and convert it into heat energy, thereby reducing the noise level. The noise reduction effect of the sound-absorbing cotton 11 is related to factors such as its material, thickness and density. Choosing a suitable sound-absorbing cotton 11 can significantly improve the noise reduction effect. The detachable partition 12 set inside the inlet and outlet 4 of the fan 3 can not only prevent foreign matter from entering the fan, causing damage or increasing noise, but also can rectify the airflow to a certain extent, reducing the noise generated by airflow disturbance. At the same time, the disassembly design of the partition 12 is also convenient for cleaning and maintenance, which helps to maintain the noise reduction performance of the fan. This design combines multiple noise reduction means such as motor 8 shock absorption, sound absorbing materials and partition 12 to form a comprehensive noise reduction system. Various noise reduction means complement each other and work together to reduce the fan noise, thereby achieving a more significant noise reduction effect than the traditional air duct structure.

[0026] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An evaporative brushless fan with a noise reduction function, comprising a housing (1) and a base (2), wherein the front side of the housing (1) is provided with an inlet (3), the right side of the housing (1) is provided with an outlet (4), and the upper end of the base (2) is fixedly mounted with a base (5), characterized in that: A placement groove (6) is provided at the middle side of the upper end of the base (5); the outer shell (1) is fixedly connected to the front side of the base (5); a sponge pad (7) is fixedly installed in the placement groove (6); a motor (8) is fixedly installed on the sponge pad (7); and the motor (8) is fixedly connected to the rear end of the outer shell (1); a rotating shaft (9) is fixedly installed at the output end of the motor (8); an impeller (10) is fixedly installed on the outer surface of the rotating shaft (9); a sound-absorbing cotton (11) is fixedly installed on the inner wall of the outer shell (1); and a partition net (12) is movably provided in each of the inlet (3) and the outlet (4).

2. The evaporative brushless fan with noise reduction function according to claim 1, characterized in that: The sound-absorbing cotton (11) is arranged in a circular ring shape.

3. The evaporative brushless fan with noise reduction function according to claim 1, characterized in that: A card slot (13) is provided in the inlet (3), a card block (14) is slidably provided in the card slot (13), and the card block (14) is fixedly connected to the partition net (12).

4. The evaporative brushless fan with noise reduction function according to claim 1, characterized in that: The front and rear ends of the outlet (4) are both movably connected with a positioning bolt (15).

5. The evaporative brushless fan with noise reduction function according to claim 1, characterized in that: The sponge pad (7) is arranged in an arc shape.

6. The evaporative brushless fan with noise reduction function according to claim 1, characterized in that: The inlet (3) and the outlet (4) are both connected to the interior of the housing (1).

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