Waterproof mute pipeline fan

Abstract

The utility model relates to the technical field of pipeline fans, and discloses a waterproof mute pipeline fan which comprises a mute shell composed of an upper shell body and a lower shell body, the side, away from the lower shell body, of the upper shell body is connected with an air inlet device, the side, away from the upper shell body, in the lower shell body is provided with a containing groove, and the containing groove is communicated with the upper shell body. A containing groove is formed in the upper shell, the axis of the bottom of the containing groove extends towards one side of the upper shell to form a supporting body, a rotating shaft cavity with the two ends open is formed in the supporting body, a motor stator coaxially connected to the supporting body in a sleeving mode is arranged in the containing groove, a magnetic ring is coaxially arranged outside the motor stator in a sleeving mode, an impeller is coaxially connected to the magnetic ring in a sleeving mode, and the impeller is arranged in the containing groove. A rotating shaft arranged at the axis position of the impeller is coaxially inserted into the rotating shaft cavity, an air outlet is formed in one side of the periphery of the mute shell, and pouring sealant is arranged in the containing groove. The pipeline fan can solve the problems that most pipeline fans in the prior art do not have a waterproof function, noise is relatively large during working, and daily use is not facilitated.

Description

Technical Field

[0001] This utility model relates to the field of duct fan technology, specifically to a waterproof and silent duct fan. Background Technology

[0002] Currently, duct fans are a type of ventilation equipment widely used in industrial plants, residential buildings, indoor ventilation, or duct pressurization. However, most existing duct fans lack waterproofing and operate with relatively high noise levels, making them unsuitable for daily use.

[0003] Therefore, existing technologies still need improvement and development. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a waterproof and silent duct fan, which aims to solve the problems that most existing duct fans do not have waterproof function and have relatively high noise during operation, which is not conducive to daily use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waterproof and silent duct fan includes a silent housing composed of an upper housing and a lower housing. An air inlet device is connected to the side of the upper housing away from the lower housing. A receiving groove is provided in the lower housing away from the upper housing. A support body extends from the axial center at the bottom of the receiving groove towards the upper housing. A rotating shaft cavity with openings at both ends is provided in the support body. A motor stator is coaxially sleeved on the support body in the receiving groove. A magnetic ring is coaxially sleeved on the outside of the motor stator. An impeller is coaxially sleeved on the outside of the magnetic ring. A rotating shaft located at the axial center of the impeller is coaxially inserted into the rotating shaft cavity. An air outlet is provided on one side of the outer circumference of the silent housing. A potting compound is filled in the receiving groove.

[0007] In a further technical solution, the waterproof and silent duct fan is wherein one end of the rotating shaft near the upper housing is connected to the cavity wall of the rotating shaft cavity via a first bearing, and the other end of the rotating shaft away from the upper housing is connected to the cavity wall of the rotating shaft cavity via a second bearing.

[0008] In a further technical solution, the waterproof and silent duct fan is provided with a dust stop valve inside the air outlet.

[0009] In a further technical solution, the waterproof and silent duct fan is provided with one or more air inlets on the air inlet device.

[0010] In a further technical solution, the waterproof and silent duct fan is wherein the center lines of the air inlet and the air outlet are set perpendicularly.

[0011] In a further technical solution, the waterproof and silent duct fan is provided with a power line connected to the motor stator on the silent housing.

[0012] In a further technical solution, the waterproof and silent duct fan is further provided with a speed regulator connected to the motor stator on the silent housing.

[0013] Compared to existing technologies, this utility model provides a waterproof and silent duct fan, comprising a silent housing composed of an upper housing and a lower housing. An air inlet device is connected to the side of the upper housing away from the lower housing. A receiving groove is provided inside the lower housing away from the upper housing. A support body extends from the axial center of the bottom of the receiving groove towards the upper housing, forming a support body. A rotating shaft cavity with openings at both ends is provided within the support body. A motor stator is coaxially sleeved on the support body within the receiving groove. A magnetic ring is coaxially sleeved outside the motor stator. An impeller is coaxially sleeved outside the magnetic ring. A rotating shaft located at the axial center of the impeller is coaxially inserted into the rotating shaft cavity. An air outlet is provided on one side of the outer circumference of the silent housing. A potting compound is filled in the receiving groove. Thus, this utility model solves the problems of existing duct fans, which mostly lack waterproof functionality and have relatively high noise levels during operation, making them unsuitable for daily use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a waterproof and silent duct fan provided for an embodiment of the present utility model.

[0016] Figure 2 An exploded view of a waterproof and silent duct fan provided for an embodiment of this utility model.

[0017] Figure 3 A cross-sectional view of a waterproof and silent duct fan provided for an embodiment of this utility model.

[0018] Figure 4 for Figure 3 Enlarged diagram of point A in the middle. Detailed Implementation

[0019] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," and "right," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or an electrical signal connection (meaning that there is both an electrical connection and a signal connection between the two); they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. When a component is referred to as being "fixed to" or "set on" another element, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening component. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] In the description of this utility model, the terms "comprising," "including," "having," and "containing" are all open-ended terms, meaning that they include but are not limited to. The terms "one embodiment," "one specific embodiment," "some embodiments," and "for example," etc., refer to specific features, structures, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. The order of steps involved in each embodiment is used to illustrate the implementation of this application, and the order of steps is not limited and can be adjusted appropriately as needed.

[0023] The various non-limiting embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Please see Figures 1-4 This utility model provides a waterproof and silent duct fan, which includes a silent housing 1 composed of an upper housing 11 and a lower housing 12. An air inlet device 2 is connected to the side of the upper housing 11 away from the lower housing 12. A receiving groove 121 is provided in the lower housing 12 away from the upper housing 11. A support body 122 is formed by extending from the axial center of the bottom of the receiving groove 121 towards the upper housing 11. A rotating shaft cavity 123 with openings at both ends is provided in the support body 122. A motor stator 3 is coaxially sleeved on the support body 122 in the receiving groove 121. A magnetic ring 4 is coaxially sleeved on the outside of the motor stator 3. An impeller 5 is coaxially sleeved on the outside of the magnetic ring 4. A rotating shaft 51 located at the axial center of the impeller 5 is coaxially inserted into the rotating shaft cavity 123. An air outlet 6 is provided on one side of the outer circumference of the silent housing 1. A potting compound is filled in the receiving groove 121.

[0025] In this specific implementation, the waterproof and silent duct fan, through its unique structural design, effectively solves the problems of insufficient waterproof performance and excessive noise in existing duct fans. First, the silent housing 1 consists of an upper housing 11 and a lower housing 12. The internal receiving groove 121 is filled with potting compound. This design effectively seals the electrical components inside the motor stator 3, preventing moisture intrusion and thus achieving waterproofing. Second, the silent effect of the waterproof and silent duct fan is mainly achieved through the structural design of the silent housing 1 and the rational layout of the impeller 5. The silent housing 1 effectively blocks and absorbs noise generated during operation. The coaxial mounting design of the impeller 5 and the motor stator 3, along with the precise fit between the rotating shaft 51 and the rotating shaft cavity 123, further optimizes the operational stability of the waterproof and silent duct fan, reducing mechanical vibration and noise generation. Therefore, this design not only improves the waterproof performance of the waterproof and silent duct fan but also significantly reduces operating noise, making it more suitable for daily use.

[0026] Furthermore, in one embodiment, in the waterproof and silent duct fan, one end of the rotating shaft 51 near the upper housing 11 is connected to the cavity wall of the rotating shaft cavity 123 via a first bearing 71, and the other end of the rotating shaft 51 away from the upper housing 11 is connected to the cavity wall of the rotating shaft cavity 123 via a second bearing 72.

[0027] In this embodiment, by setting a first bearing 71 and a second bearing 72 at both ends of the rotating shaft 51, the operating performance and service life of the waterproof and silent duct fan are further improved. Specifically, the first bearing 71 and the second bearing 72 can effectively support the rotating shaft 51, ensuring its stability during high-speed rotation and reducing noise and energy loss caused by mechanical vibration. Simultaneously, the use of the first bearing 71 and the second bearing 72 can also reduce friction between the rotating shaft 51 and the rotating shaft cavity 123, improving transmission efficiency and further optimizing the smooth operation of the waterproof and silent duct fan. Furthermore, the stable rotating shaft support structure also helps to extend the overall service life of the waterproof and silent duct fan and reduce maintenance costs. Therefore, this design not only enhances the quietness of the waterproof and silent duct fan but also improves its operational reliability and durability, making it more efficient, stable, and low-noise in daily use.

[0028] Furthermore, in one embodiment, the waterproof and silent duct fan is provided with a dust valve 8 inside the air outlet 6.

[0029] In this specific implementation, the design of installing a dust stop valve 8 (i.e., a check valve to prevent external dust and debris from entering the fan) inside the air outlet 6 further enhances the performance and practicality of the waterproof and silent duct fan. The dust stop valve 8 effectively prevents dust and debris from flowing back into the interior of the waterproof and silent duct fan from the air outlet 6, thereby protecting key components such as the impeller 5 and motor stator 3 from contamination and damage. This design not only extends the service life of the waterproof and silent duct fan but also ensures that it maintains good ventilation efficiency and performance stability during long-term operation. Simultaneously, the dust stop valve 8 provides additional protection for the waterproof function of the waterproof and silent duct fan, further enhancing its reliability and adaptability in humid environments, making it more suitable for use under various complex working conditions.

[0030] Furthermore, in one embodiment, the waterproof and silent duct fan has one or more air inlets 21 on the air inlet device 2.

[0031] In this specific implementation, the design of providing one or more (e.g., two) air inlets 21 on the air inlet device 2 provides flexibility and diversity in the air intake method of the waterproof and silent duct fan, thereby further optimizing its performance and applicability. Specifically, the number of air inlets 21 can be selected and adjusted according to the actual application scenario and ventilation requirements. For example, when a large air volume is required, multiple air inlets 21 can be set to improve air intake efficiency; while when the air volume requirement is small, only one air inlet 21 can be set, thereby achieving energy saving. In addition, the design of multiple air inlets 21 can also make the air intake more uniform, reduce airflow turbulence, and further reduce the noise and vibration of the waterproof and silent duct fan during operation.

[0032] Furthermore, in one embodiment, the waterproof and silent duct fan is wherein the center lines of the air inlet 21 and the air outlet 6 are perpendicular.

[0033] In this embodiment, the air inlet 21 and the air outlet 6 are arranged perpendicularly to each other. This unique airflow channel design significantly optimizes the aerodynamic performance and operating efficiency of the waterproof and silent duct fan. Firstly, the vertical airflow channel effectively reduces turbulence and resistance when the airflow enters and exits the fan, allowing it to pass more smoothly through the fan's interior, thereby improving ventilation efficiency and reducing energy consumption. Secondly, this design helps to further reduce the noise level during fan operation, as the smooth flow of air reduces eddy noise caused by airflow turbulence. Furthermore, the vertical air inlet and outlet layout makes the fan more flexible in installation and use, suitable for various space-constrained situations, such as vertical or embedded installation in duct systems, better adapting to different installation angles and spatial layouts. Therefore, this vertical arrangement of the air inlet 21 and air outlet 6 not only improves the performance of the waterproof and silent duct fan but also enhances its versatility and adaptability in practical applications.

[0034] Furthermore, in one embodiment, the waterproof and silent duct fan is provided with a power line 91 connected to the motor stator 3 on the silent housing 1.

[0035] Furthermore, in the aforementioned waterproof and silent duct fan, the silent housing 1 is also provided with a speed regulator 92 connected to the motor stator 3.

[0036] In this embodiment, the power cord 91 and speed controller 92 installed on the silent housing 1 provide more convenient and efficient functions for the operation and control of the waterproof and silent duct fan. The power cord 91 is directly connected to the motor stator 3, ensuring a stable power supply and enabling reliable fan operation. Simultaneously, the introduction of the speed controller 92 provides flexible adjustment of the fan's operating speed, allowing users to precisely control the fan's speed according to different usage scenarios and ventilation needs, thereby adjusting the airflow. This design not only improves the versatility and applicability of the waterproof and silent duct fan but also further optimizes its energy-saving performance, as users can adjust the fan's power according to actual needs, avoiding unnecessary energy consumption. Furthermore, the use of the speed controller 92 can reduce the impact during fan startup and operation, extending the fan's service life. Through the combination of the power cord 91 and the speed controller 92, the waterproof and silent duct fan meets diverse usage needs while further improving its operational stability and economy.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely examples illustrating several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be understood that the application of this utility model is not limited to the examples described above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A waterproof and silent duct fan, characterized in that, The device includes a silent housing (1) consisting of an upper housing (11) and a lower housing (12). An air inlet device (2) is connected to the side of the upper housing (11) away from the lower housing (12). A receiving groove (121) is provided in the lower housing (12) on the side away from the upper housing (11). A support body (122) is formed by extending from the axial center of the bottom of the receiving groove (121) toward the side of the upper housing (11). A rotating shaft cavity with openings at both ends is provided in the support body (122). (123) A motor stator (3) is coaxially sleeved on the support body (122) in the receiving groove (121). A magnetic ring (4) is coaxially sleeved on the outside of the motor stator (3). An impeller (5) is coaxially sleeved on the outside of the magnetic ring (4). A rotating shaft (51) located at the axial center of the impeller (5) is coaxially inserted into the rotating shaft cavity (123). An air outlet (6) is provided on one side of the outer circumference of the silent housing (1). A potting compound is provided in the receiving groove (121).

2. The waterproof and silent duct fan according to claim 1, characterized in that, One end of the rotating shaft (51) near the upper housing (11) is connected to the cavity wall of the rotating shaft cavity (123) through a first bearing (71), and the other end of the rotating shaft (51) away from the upper housing (11) is connected to the cavity wall of the rotating shaft cavity (123) through a second bearing (72).

3. The waterproof and silent duct fan according to claim 2, characterized in that, A dust valve (8) is installed inside the air outlet (6).

4. The waterproof and silent duct fan according to claim 3, characterized in that, The air intake device (2) has one or more air inlets (21).

5. The waterproof and silent duct fan according to claim 4, characterized in that, The center lines of the air inlet (21) and the air outlet (6) are perpendicular.

6. The waterproof and silent duct fan according to any one of claims 1-5, characterized in that, The silent housing (1) is provided with a power line (91) that is connected to the motor stator (3).

7. The waterproof and silent duct fan according to claim 6, characterized in that, The silent housing (1) is also provided with a speed regulator (92) connected to the motor stator (3).

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