A fan device capable of glue sealing
By adding a potting seal structure to the fan unit, the stator assembly and circuit board are sealed inside the potting cavity, which solves the problem of short circuit in the stator assembly and extends its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO PILER MECHANICAL ELECTRICAL MFG CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-03
AI Technical Summary
The stator components of existing wind turbine units are exposed to air for extended periods, which can easily lead to short circuits and a short service life.
An additional potting and sealing structure is added. The stator assembly and circuit board are placed in the potting cavity using the potting shell and its internal potting cavity, and then sealed with potting through the potting port to prevent moisture and dust from entering.
It effectively blocks moisture and dust in the air, prevents short circuits in the stator assembly, and greatly extends the service life of the stator assembly and circuit board.
Smart Images
Figure CN224453138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan technology, specifically to a fan device capable of being potted and sealed. Background Technology
[0002] As an important type of general-purpose machinery, fans are widely used in many fields such as modern industry, agriculture, commerce, and daily life. Essentially, a fan is a mechanical device that uses input mechanical energy to increase gas pressure and discharge gas. It is driven by a motor or other power equipment to rotate the impeller, giving the gas energy and thus achieving gas transport and pressurization.
[0003] See Figure 1 and Figure 2 The existing fan assembly includes a volute, a fan impeller, and a stator assembly. A protruding post is located at the center of the volute, and the stator assembly is fitted onto the outside of the protruding post. The fan impeller is mounted on the stator assembly and rotatably connected to the protruding post via an impeller shaft. A corresponding impeller magnetic ring is fixed to the inner wall of the impeller. In this structure, because the stator assembly cannot be sealed, it is constantly exposed to air. Moisture and dust in the air can easily cause short circuits in the stator assembly, resulting in a short service life. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of this, the present invention provides a fan device that can be sealed with glue, overcoming the defect that the stator assembly of the existing fan device is exposed to air and thus prone to short circuit.
[0006] (II) Technical Solution
[0007] To solve the aforementioned technical problem, this utility model provides a fan device capable of glue-filling and sealing, including a volute, a fan impeller, and a stator assembly, and further including a glue-filling and sealing structure for sealing the stator assembly with glue. The glue-filling and sealing structure includes a glue-filling shell fixed to the volute and used to hold glue. A connecting protrusion is provided at the center of the bottom of the glue-filling shell, and a glue-filling cavity is formed on the outer circumference of the connecting protrusion. One end of the glue-filling shell is provided with a glue-filling port communicating with the glue-filling cavity. The stator assembly is sleeved on the connecting protrusion and placed in the glue-filling cavity. The fan impeller is covered on the outside of the glue-filling shell and is rotatably connected to the connecting protrusion through the impeller shaft. During glue filling, glue is poured into the glue-filling cavity through the glue-filling port, thereby sealing the stator assembly in the glue-filling cavity.
[0008] In some embodiments, an impeller magnetic ring is fixed on the inner wall of the fan impeller, and the impeller magnetic ring is located outside the potting shell and corresponds to the stator assembly.
[0009] In some embodiments, the glue-filling shell includes a connecting disc fixed to the volute, a first cylindrical wall connected to the connecting disc, and a second cylindrical wall formed by contraction relative to the first cylindrical wall. The glue-filling port is disposed in the connecting disc, and the inner cavities of the first cylindrical wall and the second cylindrical wall are connected to form the glue-filling cavity.
[0010] In some embodiments, the connecting disc, the first cylindrical wall, the second cylindrical wall, and the connecting protrusion are integral plastic components.
[0011] In some embodiments, a circuit board is installed in the potting cavity, and the circuit board is fixedly connected to the stator assembly; the circuit board is placed in the inner cavity of the first cylindrical wall, and the stator assembly is placed in the inner cavity of the second cylindrical wall.
[0012] In some embodiments, the stator assembly includes a frame, and a plurality of connecting posts are provided at equal intervals in a ring at one end of the frame facing the circuit board, and the circuit board is connected to the connecting posts by fasteners.
[0013] In some embodiments, the connecting protrusion is a hollow structure; a bearing is installed inside the connecting protrusion, and the impeller shaft is installed inside the bearing.
[0014] In some embodiments, the fan impeller includes an impeller body covered outside the glue-filled shell, a fan blade frame fixed to the outer periphery of the impeller body, and fan blades arranged in annularly at equal intervals on the fan blade frame, and the impeller magnetic ring is fixed to the inner wall of the impeller body.
[0015] In some embodiments, the height of the upper end face of the connecting protrusion is greater than the height of the glue inlet.
[0016] (III) Beneficial Effects
[0017] This invention provides a fan device capable of being sealed with adhesive. It adds an adhesive sealing structure, utilizing an adhesive shell and its internal adhesive cavity to place the stator assembly and circuit board within the adhesive cavity of the shell, and then seals the stator assembly and circuit board with adhesive through the adhesive inlet. Compared to existing technologies where the stator assembly is exposed to air for extended periods, the adhesive sealing of the stator assembly and circuit board effectively blocks moisture, dust, and other contaminants from the air, providing insulation protection for the stator assembly and circuit board, preventing short circuits, and significantly extending the service life of the stator assembly. This overcomes the defect of existing fan devices where the stator assembly is exposed to air, leading to easy short circuits. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a 3D view of an existing wind turbine installation;
[0020] Figure 2 This is a cross-sectional view of an existing wind turbine installation;
[0021] Figure 3 This is a perspective view of a fan device capable of glue-filling and sealing according to the present invention;
[0022] Figure 4 This is a perspective view of a fan device capable of glue-filling and sealing according to this utility model.
[0023] Figure 5 This is a cross-sectional view of a fan device capable of glue filling and sealing according to the present invention;
[0024] Figure 6 This is an exploded view of a fan device capable of glue-filling and sealing according to this utility model;
[0025] Figure 7 This is a perspective view of the connection between the fan impeller, stator assembly, and glue-filling shell of a fan device capable of glue-filling and sealing according to this utility model.
[0026] Figure 8 This is a perspective view of the glue-filling shell of a fan device capable of glue-filling and sealing according to this utility model;
[0027] Figure 9 This is a cross-sectional view of the glue-filling shell of a fan device capable of glue-filling and sealing according to this utility model;
[0028] Figure 10 This is a perspective view of the impeller of a fan device capable of glue potting and sealing according to this utility model;
[0029] The component names corresponding to the various labels in the figure are: 1. Volute; 2. Fan impeller; 21. Impeller body; 22. Fan blade holder; 23. Fan blade; 3. Stator assembly; 31. Frame; 32. Connecting column; 4. Glue filling shell; 401. Connecting protrusion; 402. Glue filling cavity; 403. Glue filling port; 41. Connecting plate; 42. First columnar wall; 43. Second columnar wall; 5. Impeller shaft; 6. Impeller magnetic ring; 7. Circuit board; 8. Bearing. Detailed Implementation
[0030] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0031] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.
[0033] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0034] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.
[0035] Combination Figures 3-10 As shown, this utility model provides a fan device capable of being potted and sealed, including a volute 1, a fan impeller 2, and a stator assembly 3. The stator assembly 3 is prior art and will not be described in detail in this embodiment.
[0036] See Figure 5 and Figure 6The fan device capable of glue-filling and sealing also includes a glue-filling and sealing structure for sealing the stator assembly 3. The glue-filling and sealing structure includes a glue-filling shell 4 fixed to the volute 1 and used to hold glue. The glue-filling shell 4 is barrel-shaped with an opening at one end. A connecting protrusion 401 protrudes from the center of the bottom of the glue-filling shell 4, and a glue-filling cavity 402 is formed on the outer circumference of the connecting protrusion 401. One end of the glue-filling shell 4 has a glue-filling port 403 communicating with the glue-filling cavity 402. The stator assembly 3 is fitted over the connecting protrusion 401 and placed inside the glue-filling cavity 402. The fan impeller 2 is mounted on the outside of the glue-filling shell 4 and is rotatably connected to the connecting protrusion 401 via an impeller shaft 5. During glue filling, glue is poured into the glue-filling cavity 402 through the glue-filling port 403, thereby sealing the stator assembly 3 inside the glue-filling cavity 402. The glue used for glue filling is existing technology and will not be described in detail in this embodiment. This structure incorporates a potting and sealing mechanism. By utilizing the potting shell and its internal potting cavity, the stator assembly is placed within the potting cavity of the potting shell, and the stator assembly is sealed by potting through the potting port. This effectively blocks moisture and dust from the air, preventing short circuits in the stator assembly and significantly extending its service life.
[0037] In some embodiments, such as Figure 5 and Figure 6 As shown, an impeller magnetic ring 6 is fixed on the inner wall of the fan impeller 2. The impeller magnetic ring 6 is located outside the glue-filled shell 4 and corresponds to the stator assembly 3.
[0038] In some embodiments, such as Figure 8 and Figure 9 As shown, the potting housing 4 includes a connecting plate 41 fixed to the volute 1, a first cylindrical wall 42 connected to the connecting plate 41, and a second cylindrical wall 43 formed by contraction relative to the first cylindrical wall 42. The connecting plate 41, the first cylindrical wall 42, the second cylindrical wall 43, and the connecting protrusion 401 are arranged coaxially. The connecting plate 41 can be connected to the volute 1 by welding, fasteners, or integral molding. The second cylindrical wall 43 is arranged in a contracted manner, allowing the impeller magnetic ring 6 to be positioned in the external space of the second cylindrical wall 43, facilitating component installation and resulting in a more compact structure. The potting port 403 is located inside the connecting plate 41, and the inner cavities of the first cylindrical wall 42 and the second cylindrical wall 43 are connected to form a potting cavity 402. For ease of manufacturing, the connecting plate 41, the first cylindrical wall 42, the second cylindrical wall 43, and the connecting protrusion 401 are integral plastic parts.
[0039] In some embodiments, such as Figures 5 to 7As shown, a circuit board 7 is installed inside the potting cavity 402. The circuit board 7 is fixedly connected to the stator assembly 3, and the circuits of the stator assembly 3 are electrically connected to the circuit board 7. The circuit board 7 is placed in the inner cavity of the first cylindrical wall 42, and the stator assembly 3 is placed in the inner cavity of the second cylindrical wall 43. The stator assembly 3 includes a frame 31, and multiple connecting posts 32 are arranged at equal intervals in a ring at one end of the frame 31 facing the circuit board 7. The circuit board 7 is connected to the connecting posts 32 by fasteners. The circuit board 7 is provided with multiple through holes, and the fasteners can be fastening screws, which pass through the through holes and are threaded to the connecting posts 32. This structure can also seal the circuit board 7 during potting and sealing, extending its service life.
[0040] In some embodiments, such as Figure 5 and Figure 6 As shown, the connecting protrusion 401 is a hollow structure; a bearing 8 is installed inside the connecting protrusion 401, and the impeller shaft 5 is installed inside the bearing 8. A snap-fit device (not shown in the figure) is installed at the end of the impeller shaft 5 away from the fan impeller 2, and the snap-fit device is used to limit the movement of the impeller shaft 5.
[0041] In some embodiments, such as Figure 5 and Figure 10 As shown, the fan impeller 2 includes an impeller body 21 covered outside the glue-filled shell 4, a fan blade frame 22 fixed on the outer periphery of the impeller body 21, and fan blades 23 arranged in annularly at equal intervals on the fan blade frame 22. The impeller magnetic ring 6 is fixed on the inner wall of the impeller body 21.
[0042] In some embodiments, such as Figure 9 As shown, the height of the upper surface of the connecting protrusion 401 is greater than the height of the glue inlet 403. This structure ensures that even when the glue filling cavity 402 is filled with glue, glue will not enter the connecting protrusion 401, thus guaranteeing the reliability of the structure.
[0043] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.
[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A fan assembly capable of being glue-sealed, comprising a volute (1), a fan impeller (2) and a stator assembly (3), characterized in that: It also includes a potting sealing structure for potting and sealing the stator assembly (3), the potting sealing structure including a potting shell (4) fixed on the volute (1) and used to contain the glue, a connecting protrusion (401) is provided at the center of the bottom of the potting shell (4), a potting cavity (402) is formed on the outer circumference of the connecting protrusion (401), and a potting port (402) is provided at one end of the potting shell (4) communicating with the potting cavity (402). 03); The stator assembly (3) is fitted onto the connecting protrusion (401) and placed inside the glue filling cavity (402). The fan impeller (2) is covered on the outside of the glue filling shell (4) and is rotatably connected to the connecting protrusion (401) through the impeller shaft (5). During glue filling, glue is poured into the glue filling cavity (402) through the glue filling port (403) to seal the stator assembly (3) inside the glue filling cavity (402).
2. The potting sealable fan device according to claim 1, wherein: An impeller magnetic ring (6) is fixed on the inner wall of the fan impeller (2). The impeller magnetic ring (6) is located outside the glue-filled shell (4) and corresponds to the stator assembly (3).
3. The potting sealable fan device according to claim 1, wherein: The glue-filling shell (4) includes a connecting plate (41) fixed to the volute (1), a first cylindrical wall (42) connected to the connecting plate (41), and a second cylindrical wall (43) formed by contraction relative to the first cylindrical wall (42). The glue-filling port (403) is disposed in the connecting plate (41). The inner cavities of the first cylindrical wall (42) and the second cylindrical wall (43) are connected to form the glue-filling cavity (402).
4. The potting sealable fan device according to claim 3, wherein: The connecting disc (41), the first cylindrical wall (42), the second cylindrical wall (43), and the connecting protrusion (401) are plastic parts with an integral structure.
5. The potting sealable fan device according to claim 3, wherein: A circuit board (7) is installed inside the potting cavity (402), and the circuit board (7) is fixedly connected to the stator assembly (3); the circuit board (7) is placed in the inner cavity of the first cylindrical wall (42), and the stator assembly (3) is placed in the inner cavity of the second cylindrical wall (43).
6. The potting sealable fan device according to claim 5, wherein: The stator assembly (3) includes a frame (31), and a plurality of connecting posts (32) are arranged in a ring at equal intervals at one end of the frame (31) facing the circuit board (7). The circuit board (7) is connected to the connecting posts (32) by fasteners.
7. The potting sealable fan device according to claim 1, wherein: The connecting protrusion (401) is a hollow structure; a bearing (8) is installed inside the connecting protrusion (401), and the impeller shaft (5) is installed inside the bearing (8).
8. The potting sealable fan device according to claim 2, wherein: The impeller (2) includes an impeller body (21) covered outside the glue shell (4), a fan blade frame (22) fixed on the outer periphery of the impeller body (21), and fan blades (23) arranged in a ring at equal intervals on the fan blade frame (22). The impeller magnetic ring (6) is fixed on the inner wall of the impeller body (21).
9. The potting sealable fan device according to claim 1, wherein: The height of the upper end face of the connecting protrusion (401) is greater than the height of the glue inlet (403).