A type of fan

Abstract

This utility model discloses a fan, relating to the field of fan structure design technology. The fan includes: a main housing, a front baffle, a core, and a filter assembly. The core is connected inside the main housing, the front baffle is detachably connected to the main housing, and the filter assembly is disposed inside the main housing and fixedly connected to the front baffle. The filter assembly is located on the side of the core near the front baffle. The main housing protects the internal components, the front baffle prevents foreign objects from being sucked in, and the core provides power to drive the airflow. The filter assembly filters oil fumes, dust, hair, and other foreign objects. The front baffle's detachable connection to the upper side of the main housing facilitates installation and removal. Simultaneously, the filter assembly, located on the main housing, performs its filtering function, making cleaning or replacement convenient. The filter assembly is fixedly connected to the front baffle and can be disassembled along with the front baffle for quick installation. Furthermore, the filter assembly can be removed separately from the front baffle when not in use.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine structural design technology, and in particular to a wind turbine. Background Technology

[0002] With the diversification of residential living scenarios, the number of potential flammable and explosive risk scenarios in the home environment is gradually increasing. For example, kitchens using natural gas or liquefied petroleum gas pose a risk of gas leaks. Basements and storage rooms may contain volatile flammable liquids or aerosols such as alcohol, paint, and pesticides. Small-scale chemical experiments in laboratory areas may generate flammable gases. Areas around new energy appliances, such as lithium battery charging areas, may release flammable gases. In these scenarios, traditional household exhaust fans, due to their lack of design, can easily become safety hazards during operation, driving the growing demand for household exhaust fans. However, current household exhaust fan products still have many shortcomings.

[0003] In existing technologies, most exhaust fans are designed for industrial applications, which doesn't match the lightweight and miniaturized requirements of home environments. Furthermore, in home environments, exhaust fans need to handle not only dust such as kitchen fumes but also impurities like hair. Currently, most home exhaust fans lack filters, allowing impurities to easily enter the fan's internal components, causing motor jamming, impeller dust accumulation, and potentially static sparks from component friction during long-term operation. Additionally, home environments demand easy-to-clean filters, but some existing fans use welded filters that cannot be individually disassembled for cleaning, requiring complete replacement and increasing operating costs. Secondly, the complex disassembly and maintenance of existing fans hinders ease of operation. Thirdly, their appearance doesn't blend well with the home environment: home products need to coordinate with interior design styles, but most current home exhaust fans fail to integrate into the décor of living rooms, bedrooms, and other similar settings, reducing user willingness to use them due to aesthetic concerns and limiting their widespread adoption.

[0004] Therefore, it is evident that existing fans suffer from poor structural adaptability and cannot meet the safety requirements of home environments. Furthermore, the lack of a filter component allows impurities to easily enter the exhaust fan's internal structure, leading to motor jamming and impeller dust accumulation. Difficult disassembly and cleaning also cause fan blockages. In addition, home environments require easy-to-clean filters, but some existing fans use welded filters that cannot be individually disassembled for cleaning, requiring complete replacement and increasing operating costs. Moreover, the appearance of existing fans does not blend well with the home environment. Utility Model Content

[0005] In view of this, the main objective of this utility model is to provide a fan that can solve the problems of poor adaptability of the explosion-proof structure in the prior art, which cannot meet the safety requirements of household scenarios. The lack of a filter component allows impurities to easily enter the exhaust fan core, causing motor jamming and impeller dust accumulation. Furthermore, the difficulty in disassembly and cleaning leads to fan blockage; some existing fans use welded filters that cannot be individually disassembled for cleaning, requiring complete replacement and increasing operating costs. The prior art also suffers from poor aesthetic integration with the household environment.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows: The fan includes: a main housing, a front baffle, a core, and a filter assembly. The core is connected inside the main housing. The front baffle is detachably connected to the main housing. The filter assembly is disposed inside the main housing and is fixedly connected to the front baffle. The filter assembly is located on the side of the core near the front baffle.

[0007] In a preferred embodiment, the front baffle includes: a baffle and a connecting buckle, the connecting buckle being integrally formed on the lower surface of the baffle and detachably connected to the main housing; The baffle has an integrally formed connecting seat in the middle, and the other end of the connecting seat is fixedly connected to the filter assembly.

[0008] In a preferred embodiment, the filter assembly includes a filter screen and a connecting post, wherein one side of the connecting post is fixedly connected to the middle part of the filter screen, and the other end of the connecting post is fixedly connected to the connecting seat.

[0009] In a preferred embodiment, the filter screen includes: a filter mesh and a magnetic frame, wherein the filter mesh is disposed inside the magnetic frame and the magnetic frame is detachably connected to the main housing.

[0010] In a preferred embodiment, the main housing includes: a fan inner box, a front cover plate and a rear cover plate. The front cover plate is integrally formed at one end of the fan inner box, and the rear cover plate is disposed at the other end of the fan inner box. The front cover plate and the rear cover plate are fixedly connected. The core is disposed inside the fan inner box, and the front cover plate and the rear cover plate are fixedly connected to both sides of the core respectively.

[0011] In a preferred embodiment, a first air inlet is provided in the middle of the front cover, and a first expansion opening is provided at the connection between the first air inlet and the inner box of the fan.

[0012] In a preferred embodiment, a slot is provided on the front cover plate, and the slot is detachably connected to the connecting buckle; In a preferred embodiment, a magnetic strip is fixedly connected to the front cover plate, and the magnetic strip is detachably connected to the magnetic frame.

[0013] In a preferred embodiment, the main housing further includes: a front cover and a fixing plate; In a preferred embodiment, a second air inlet is provided in the middle of the front cover, and a second expansion opening is provided at the connection between the second air inlet and the front cover. Connecting posts are provided on both sides of the front cover, and the connecting posts are fixedly connected to the fan inner box through a connecting assembly. In a preferred embodiment, the fixing plate includes an air outlet portion and a fixing portion, one side of the air outlet portion is formed on one side of the fixing portion, the connection between the air outlet portion and the fixing portion is an air outlet, and the fixing plate is also provided with a connecting slot, which is detachably connected to the rear cover plate.

[0014] In a preferred embodiment, the rear cover plate is provided with a connecting buckle, which engages with the connecting slot.

[0015] In a preferred embodiment, the connecting assembly includes: a retainer and a torsion spring latch; In a preferred embodiment, the card holder includes an upper part, a lower part, and an extension part. The two sides of the lower part are integrally bent to form the upper part and the extension part, respectively. The upper part and the lower part are fixedly connected to the connecting hole post and the fan inner box, respectively. The extension part is provided with a buckle groove, and the buckle groove is rotatably connected to the torsion spring buckle.

[0016] The fan of this utility model has the following beneficial effects: The fan includes: a main housing, a front baffle, a core, and a filter assembly. The core is connected inside the main housing. The front baffle is detachably connected to the main housing. The filter assembly is located inside the main housing and is fixedly connected to the front baffle. The filter assembly is located on the side of the core near the front baffle.

[0017] This fan features a main casing that protects internal components, a front baffle to prevent foreign objects from being sucked in, and a core that powers the fan and drives airflow. The filter assembly filters out oil fumes, dust, hair, and other foreign objects. The core and its connecting structure within the main casing further regulate the airflow path. The front baffle is detachably attached to the upper side of the main casing for easy installation and removal. The filter assembly, mounted on the main casing, provides filtration, making cleaning and replacement convenient. While fixedly connected to the front baffle, the filter assembly can also be removed along with it for quick installation. Furthermore, it can be removed separately from the front baffle when not in use. Attached Figure Description

[0018] 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 of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a fan according to one embodiment of the present disclosure; Figure 2 This is a schematic diagram of the structure of a fan according to one embodiment of the present disclosure from another angle; Figure 3 This is a schematic diagram of the structure of a fan according to one embodiment of the present disclosure from another angle; Figure 4 This is a schematic diagram of the structure of the front baffle of a fan according to one embodiment of the present disclosure; Figure 5 This is a schematic diagram of the front baffle and filter assembly of a fan according to one embodiment of the present disclosure; Figure 6 This is a schematic diagram of the structure of a filter assembly of a fan according to one embodiment of the present disclosure; Figure 7 This is a schematic diagram of the structure of a fan inner box for mounting a filter assembly according to one embodiment of the present disclosure; Figure 8 This is a schematic diagram of the structure of the inner casing of a fan according to one embodiment of the present disclosure; Figure 9 This is a structural schematic diagram of the rear cover plate of a fan according to one embodiment of the present disclosure; Figure 10 This is a structural schematic diagram of the rear cover plate of a fan according to one embodiment of the present disclosure from another angle; Figure 11 This is a schematic diagram of the fan inner box and core of a fan according to one embodiment of the present disclosure; Figure 12 This is a schematic diagram of the front cover of a fan according to one embodiment of the present disclosure; Figure 13 This is a schematic diagram of the front cover of a fan according to one embodiment of the present disclosure from another angle. Figure 14 This is a schematic diagram of the structure of a fixing plate for a fan according to one embodiment of the present disclosure; Figure 15 This is a schematic diagram of the structure of a connection assembly of a fan according to one embodiment of the present disclosure; Figure 16This is a schematic diagram of the open structure of the connecting assembly of a fan according to one embodiment of the present disclosure; Figure 17 This is a schematic diagram of the core structure of a fan according to one embodiment of the present disclosure.

[0020] [Explanation of Key Component Symbols] 1. Main shell; 11. Fan inner box; 12. Front cover; 121. First air inlet; 1211. First expansion port; 122. Card slot; 123. Magnetic strip; 13. Rear cover; 131. Connecting buckle; 14. Front cover; 141. Second air inlet; 1411. Second expansion port; 142. Connecting post; 15. Fix the card plate; 151. Air outlet; 1511. Air outlet; 152. Fixing part; 153. Connecting slot; 2. Front baffle; 21. Baffle; 22. Connecting buckle; 211. Connecting seat; 3. Movement; 31. Fan casing; 32. Impeller; 33. Motor; 311. Guide vane; 4. Filter components; 41. Filter screen; 411. Filter mesh; 412. Magnetic frame; 42. Connecting column; 5. Connecting components; 51. Card holder; 511. Upper part; 512. Lower part; 513. Extension part; 5131. Snap-on slot; 52. Torsion spring buckle. Detailed Implementation

[0021] The following description, in conjunction with the accompanying drawings and embodiments of the present invention, provides a more detailed account of a fan according to the present invention.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] according to Figures 1-17As shown, the fan includes: a main housing 1 that protects internal components; a front baffle 2 that prevents foreign objects from being sucked in; a core 3 that provides power to the fan and drives the airflow out; and a filter assembly 4 that filters oil fumes, dust, hair, and other foreign objects. The core 3 is connected inside the main housing 1, and the direction of airflow is further defined by the core 3 and connecting components inside the main housing 1. The front baffle 2 is detachably connected inside the main housing 1 for easy installation and removal. Meanwhile, the filter assembly 4 is mounted on the main housing 1, providing filtration and facilitating cleaning or replacement. The filter assembly 4 is fixedly connected to the front baffle 2. Alternatively, the filter assembly 4 can be located on the side of the core closer to the front baffle and can be removed along with the front baffle 2 for quick installation. Furthermore, the filter assembly 4 can be removed separately from the front baffle 2 when not in use.

[0027] To prevent foreign objects from being sucked in and to avoid mechanical sparks, a front baffle 2 is installed in front of the air inlet of the main housing 1. The front baffle 2 includes a baffle 21 that provides physical shielding and connecting buckles 22 for fixing. The connecting buckles 22 are located at the four corners of the lower surface of the baffle 21, making the connection more secure. The connecting buckles 22 are integrally formed on the lower surface of the baffle 21 and are snapped onto the main housing 1. There is a gap between the baffle 21 and the main housing 1 to provide an air intake duct, allowing airflow to pass through the gap and be guided out by the core 3. In addition, it also makes it easier to disassemble the baffle 21. The filter assembly 4 located on it can also be removed for cleaning or replacement along with the baffle 21, which allows the filter assembly 4 to be disassembled without contact, avoiding hand contamination caused by direct contact. In addition, the easily removable front baffle 2 also makes it easy to observe the operating status of the core 3, facilitating maintenance. The front baffle 2 also improves the overall aesthetics of the fan, making it more acceptable.

[0028] In order to fix the baffle 21 to the filter assembly 4, a connecting seat 211 is provided in the middle of the baffle 21. The connecting seat 211 is fixedly connected to the filter assembly 4. In this specific embodiment, the connection method between the connecting seat 211 and the filter assembly 4 can be a threaded connection or a connection method similar to an transition fit. One end of the connecting post 42 of the filter assembly 4 is fixed on the connecting seat 211 so as to provide vertical support for the connecting post 42.

[0029] In order to enable the air inlet of the fan to filter oil and other particles, the filter assembly 4 includes: a filter screen 41 that plays the main filtering role and a connecting post 42 that plays a fixed connection role. One side of the connecting post 42 passes through the middle of the filter screen 41 and is fixedly connected to the filter screen 41. Specifically, a baffle is provided on one side of the connecting post 42. After the diameter of the connecting post 42 passing through the hole in the middle of the filter screen 41 is larger than that of the filter screen 41, the baffle is used to fix the end through which the connecting post 42 passes. In order to prevent the filter screen 41 from sliding down to the front baffle 2 side, the baffle is connected to the front and rear ends of the filter screen 41. The other side of the connecting post 42 is fixedly connected to the connecting seat 211.

[0030] To facilitate the disassembly of the filter screen 41, the filter screen 41 includes a filter mesh 411 and a magnetic frame 412. The filter mesh 411 is located inside the magnetic frame 412. The size of the filter mesh holes of the filter mesh 411 can be selected according to the usage requirements. The magnetic frame 412 enables the filter screen 41 to be magnetically attached to the main housing 1, allowing for multiple uses and quick assembly and disassembly. Furthermore, since there is a certain connection gap between the connecting post 42 and the filter mesh 411, the magnetic connection with the main housing 1 further enables the filter mesh 411 to be attached to the main housing 1. And since one side is fixedly connected to the front baffle 2, the magnetic connection can ensure its stability.

[0031] To ensure the core mechanism 3 is securely fixed inside the main housing 1, the main housing 1 includes: a fan inner box 11 for fixing the core mechanism 3, a front cover plate 12 for fixing the core mechanism 3, and a rear cover plate 13. To improve the overall integrity of the main housing 1 and reduce disassembly and installation steps, the front cover plate 12 is integrally formed inside one end of the fan inner box 11. The rear cover plate 13 is fixedly connected to the other end of the fan inner box 11, and the rear cover plate 13 is fixedly connected to the front cover plate 12. The core mechanism 3 is located inside the fan inner box 11, and the front cover plate 12 and the rear cover plate 13 are fixedly connected to both sides of the core mechanism 3, respectively. The front cover plate 12, the fan inner box 11, and the rear cover plate 13 together constitute the housing for fixing the core mechanism 3, thus fixing the airflow channel.

[0032] To improve exhaust efficiency, a first air inlet 121 is provided in the middle of the front cover plate 12. A first expansion port 1211 is provided at the connection between the first air inlet 121 and the inner box 11 of the fan. The first expansion port 1211 has a horn-shaped outward expansion structure. This horn-shaped outward expansion structure acts as a gradually narrowing airflow channel, smoothly and gradually guiding the air to slowly converge to the inlet area of ​​the fan. This greatly reduces sudden airflow contraction and turbulence generation, allowing air to be drawn into the fan more easily and smoothly. This results in a larger effective air volume and better suction effect.

[0033] Correspondingly, a slot 122 is provided on the front cover plate 12, the slot 122 is detachably connected to the connecting buckle 22, and a magnetic strip 123 is fixedly connected to the front cover plate 12, the magnetic strip 123 is detachably connected to the magnetic frame 412.

[0034] To improve the efficiency of the air intake and exhaust ports, the main housing 1 also includes a front cover 14 located at the air intake and a fixing plate 15 with an exhaust port. To further improve suction efficiency, a second air inlet 141 is provided in the center of the front cover 14, and a second expansion port 1411 is provided at the connection between the second air inlet 141 and the front cover 14. Correspondingly, the second expansion port 1411 is also a funnel-shaped outward-expanding structure, which, in addition to improving suction efficiency, allows the funnel-shaped opening area to cover and collect a wider area of ​​oil fumes and prevents the gas from dissipating from all sides. Without the filter assembly 4 installed, the outward-expanding structure physically increases the distance between the air inlet and the motor core 3, reducing the risk of fingers or large foreign objects directly touching the impeller. For easy fixing, connecting posts 142 are provided on both sides of the front cover 14, and the connecting posts 142 are fixedly connected to the inner fan box 11 via connecting components 5.

[0035] To improve ventilation, the fixing plate 15 includes an air outlet 151 and a fixing part 152. One side of the air outlet 151 is formed on one side of the fixing part 152. The connection between the air outlet 151 and the fixing part 152 forms the air outlet 1511. The air outlet 1511 has a tapered diameter structure, which converts air pressure into velocity, increasing the outlet dynamic pressure of the airflow. When connected to an external duct, the exhaust gas can be projected further and more powerfully, improving overall efficiency. This also increases kinetic energy efficiency and overcomes duct resistance. Similarly, for easy disassembly and installation, the fixing plate 15 is also provided with a connecting slot 153, which is detachably connected to the rear cover plate 13. The rear cover plate 13 is provided with a connecting buckle 131, which engages with the connecting slot 153.

[0036] To increase the number of ways to fix the fan, a connecting component 5 is fixedly connected to the inner box 11 of the fan. The connecting component 5 includes a bracket 51 that fixes the inner box 11 of the fan to the front cover 14 and a torsion spring buckle 52 that provides elastic support for fixation.

[0037] The mounting bracket 51 includes: an upper part 511 that is fixedly connected to the connecting hole post 142 of the front cover 14, a lower part 512 that is fixedly connected to the side of the fan inner box 11, and an extension part 513 that is connected to the torsion spring buckle 52. To improve the connection strength between the fan inner box 11 and the front cover 14, the lower part 512 is integrally bent to the upper part 511 and the extension part 513 on both sides, respectively. The upper part 511 and the lower part 512 are fixedly connected to the connecting hole post 142 and the fan inner box 11, respectively. A buckle groove 5131 is provided on the extension part 513, and the buckle groove 5131 is rotatably connected to the torsion spring buckle 52. By opening the torsion spring buckle 52, the fan can be fixed by supporting the front cover 14 and the fan inner box when inserted, for example, into a ceiling opening. Correspondingly, the core 3 includes: a fan housing 31, an impeller 32 and a motor 33. The motor 33 is located inside the fan housing 31, the impeller 32 is connected to the motor 33, and a guide vane 311 is integrally formed inside the fan housing 31.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A fan, characterized in that, include: The main housing (1), front baffle (2), mechanism (3) and filter assembly (4) are provided. The mechanism (3) is connected inside the main housing (1). The front baffle (2) is detachably connected to the main housing (1). The filter assembly (4) is disposed inside the main housing (1) and is fixedly connected to the front baffle (2). The filter assembly (4) is disposed on the side of the mechanism (3) near the front baffle (2).

2. The fan according to claim 1, characterized in that, The front baffle (2) includes a baffle (21) and a connecting buckle (22). The connecting buckle (22) is integrally formed on the lower surface of the baffle (21) and is detachably connected to the main housing (1). The baffle (21) has an integrally formed connecting seat (211) in the middle, and the other end of the connecting seat (211) is fixedly connected to the filter assembly (4).

3. The fan according to claim 2, characterized in that, The filter assembly (4) includes a filter screen (41) and a connecting post (42). One side of the connecting post (42) is fixedly connected to the middle part of the filter screen (41), and the other end of the connecting post (42) is fixedly connected to the connecting seat (211).

4. The fan according to claim 3, characterized in that, The filter screen (41) includes a filter mesh (411) and a magnetic frame (412). The filter mesh (411) is disposed inside the magnetic frame (412), and the magnetic frame (412) is detachably connected to the main housing (1).

5. The fan according to claim 4, characterized in that, The main housing (1) includes: a fan inner box (11), a front cover plate (12) and a rear cover plate (13). The front cover plate (12) is integrally formed at one end of the fan inner box (11), and the rear cover plate (13) is located at the other end of the fan inner box (11). The front cover plate (12) and the rear cover plate (13) are fixedly connected. The core (3) is located inside the fan inner box (11), and the front cover plate (12) and the rear cover plate (13) are fixedly connected to both sides of the core (3).

6. The fan according to claim 5, characterized in that, The front cover (12) has a first air inlet (121) in the middle, and a first expansion port (1211) is provided at the connection between the first air inlet (121) and the inner box (11) of the fan.

7. The fan according to claim 6, characterized in that, The front cover plate (12) is provided with a slot (122), and the slot (122) is detachably connected to the connecting buckle (22); A magnetic strip (123) is fixedly connected to the front cover plate (12), and the magnetic strip (123) is detachably connected to the magnetic frame (412).

8. The fan according to claim 7, characterized in that, The main housing (1) also includes: a front cover (14) and a fixing plate (15); The front cover (14) has a second air inlet (141) in the middle, and a second expansion port (1411) is provided at the connection between the second air inlet (141) and the front cover (14). The front cover (14) has connecting posts (142) on both sides, and the connecting posts (142) are fixedly connected to the fan inner box (11) through the connecting assembly (5). The fixing plate (15) includes an air outlet (151) and a fixing part (152). One side of the air outlet (151) is formed on one side of the fixing part (152). The connection between the air outlet (151) and the fixing part (152) is an air outlet (1511). The fixing plate (15) is also provided with a connecting slot (153). The connecting slot (153) is detachably connected to the rear cover plate (13).

9. The fan according to claim 8, characterized in that, The rear cover plate (13) is provided with a connecting buckle (131), which engages with the connecting slot (153).

10. The fan according to claim 9, characterized in that, The connecting component (5) includes: a retainer (51) and a torsion spring buckle (52); The card holder (51) includes an upper part (511), a lower part (512) and an extension part (513). The lower part (512) is integrally bent with the upper part (511) and the extension part (513) on both sides. The upper part (511) and the lower part (512) are fixedly connected to the connecting hole post (142) and the fan inner box (11) respectively. The extension part (513) is provided with a buckle groove (5131). The buckle groove (5131) is rotatably connected to the torsion spring buckle (52).

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