Circulating fan with multiple groups of air purification devices

Abstract

The utility model discloses a circulating fan with multiple groups of air purification devices, which comprises a fan body, the fan body comprises a frame body, a fan body, a fan blade and a fan blade, the rear end of the frame body is peripherally provided with radial air inlet holes; the motor bracket is mounted at the front position of the hollow inner cavity of the frame body; the motor is installed on the motor support, and fan blades are installed on an output shaft of the motor; the air outlet grid is arranged at an outlet at the front end of the hollow inner cavity; the rear cover is mounted at the rear end inlet of the hollow inner cavity, and a rear end air inlet hole is formed in the rear cover; the position of the first filtering device corresponds to the position of the radial air inlet hole, and the first filtering device is used for filtering air flowing into the hollow inner cavity from the radial air inlet hole; the position of the second filtering device corresponds to the position of the rear-end air inlet hole, and the second filtering device is used for filtering air flowing into the hollow inner cavity from the rear-end air inlet hole. The circulating fan with the multiple sets of air purification devices has the advantages of being high in air speed, large in air volume, long in air supply distance, good in filtering effect, good in use experience and the like.

Description

Technical Field

[0001] The utility model relates to a circulation fan, in particular to a circulation fan of a multi-group air purification device. Background Art

[0002] Purification circulation fan is a widely used household appliance. The structure of a traditional purification circulation fan is to set a radial air inlet at the rear of the frame, an air outlet at the front of the frame, a circulation fan blade and a motor in the frame, a filter device at the rear full-circle air inlet end of the fan blade, and a wind grille at the air outlet end of the fan blade. During operation, the motor output shaft rotates at high speed to drive the fan blades to rotate, and the driving wind is sucked in from the circumferential air inlet at the rear of the frame, and then blown out from the wind grille at the front of the frame. However, due to the design and structural limitations of the existing purification circulation fan, this air intake method and the setting of the air purification device greatly affect the wind speed, air volume, air purification efficiency, etc. of the entire circulation fan. In actual use, there are technical problems such as low wind speed, small air volume, and poor purification effect. The above-mentioned problems seriously limit the further promotion and application of this product.

[0003] In view of this, the purpose of this utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a circulation fan for multiple groups of air purification devices, which solves the technical defects of existing products such as low wind speed, small air volume, poor purification effect, and poor user experience.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A circulation fan of a multi-group air purification device includes a body, wherein the body includes:

[0007] The frame is cylindrical and has a hollow inner cavity extending from front to back, and radial air inlet holes are circumferentially arranged at the rear end of the frame;

[0008] A motor bracket is mounted in the front portion of the hollow inner cavity of the frame;

[0009] A motor, wherein the motor is fixedly mounted on the motor bracket, and a fan blade is mounted on the output shaft of the motor;

[0010] An air outlet grille, the air outlet grille being arranged at a front end outlet position of the hollow inner cavity of the frame;

[0011] A rear cover, the rear cover being detachably mounted at the rear entrance of the hollow inner cavity of the frame, and having a rear air inlet hole formed thereon;

[0012] a first filter device, the first filter device being disposed in the hollow inner cavity of the frame body, the position of the first filter device corresponding to the position of the radial air inlet hole and being used to filter the air flowing from the radial air inlet hole into the hollow inner cavity of the frame body;

[0013] The second filter device is arranged on the rear cover, the position of the second filter device corresponds to the position of the rear air inlet hole and is used to filter the air flowing from the rear air inlet hole into the hollow inner cavity of the frame.

[0014] As a further improvement of the above technical solution, the first filter device is a cylindrical filter device, and the first filter device is arranged on the inner wall of the region where the radial air inlet holes are distributed on the frame.

[0015] As a further improvement of the above technical solution, the second filter device is a block-shaped filter device, and the second filter device is installed corresponding to the inner wall position of the rear cover where the rear air inlet hole is provided.

[0016] As a further improvement of the above technical solution, a back cover connecting buckle is provided at the edge of the back cover, and a back cover mounting ring plate cooperating with the back cover connecting buckle is provided at the rear end entrance of the hollow inner cavity of the frame, and a snapping notch is provided on the back cover mounting ring plate. The back cover connecting buckle is inserted into the interior of the back cover mounting ring plate from the snapping notch and is rotated and snapped onto the back cover mounting ring plate.

[0017] As a further improvement of the above technical solution, a second filter device fixing buckle is provided inside the back cover, and the second filter device fixing buckle is buckled to the side wall of the second filter device and detachably fixes the second filter device to the inner wall of the back cover.

[0018] As a further improvement of the above technical solution, the back cover has a handle groove extending inward from its rear end, and the handle groove forms an internal support protrusion on the inner wall of the back cover. The internal support protrusion is used to support the rear end of the first filter device and is used for installing and removing the back cover.

[0019] As a further improvement of the above technical solution, the motor bracket includes an external support part connected to the inner wall of the frame, a motor mounting part for mounting the motor, and a plurality of connecting edges connected between the external support part and the motor mounting part, and a motor bracket vent is formed between two adjacent connecting edges.

[0020] As a further improvement of the above technical solution, a motor bracket limit plate is provided on the inner wall of the frame, and the rear side of the external support part of the motor bracket abuts against the motor bracket limit plate. A motor bracket top pressure plate is extended backward from the rear end of the air outlet grille, and the motor bracket top pressure plate presses against the front side of the external support part of the motor bracket and limits the motor bracket to the motor bracket limit plate, and when the two are pressed against each other, an air duct for air flow outflow is formed.

[0021] As a further improvement of the above technical solution, the connecting edge of the motor bracket extends backward and obliquely, and the connecting edge extending backward and obliquely forms a supporting position on the rear side of the external support part. The front end of the first filter device abuts against the rear wall of the external support part and is supported at the supporting position.

[0022] As a further improvement of the above technical solution, it also includes a support, the support has two support arms, and the support arms are rotatably connected to the side walls of the frame of the fuselage through a rotating shaft.

[0023] The beneficial effects of the present invention are as follows: the present invention provides a circulation fan for a plurality of air purification devices, the circulation fan for the plurality of air purification devices is provided with radial air inlet holes and rear end air inlet holes, and a first filter device and a second filter device are provided inside the frame. In actual use, the radial air inlet holes and the rear end air inlet holes can ensure the air volume and wind speed during use, and can increase the air supply distance; in addition, the first filter device and the second filter device can improve the filtering performance, the purification effect is good, the user experience can be improved during use, the market competitiveness of the product is stronger, and it is convenient for the product to be further promoted and applied.

[0024] In summary, the circulation fan of this multi-group air purification device solves the technical defects of existing products such as low wind speed, small air volume, poor purification effect, and poor user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 It is an assembly diagram of the utility model;

[0027] Figure 2 This is a structural breakdown diagram of the utility model;

[0028] Figure 3 This is another structural breakdown diagram of the utility model;

[0029] Figure 4 This is a third structural disassembly diagram of the utility model;

[0030] Figure 5 This is a schematic diagram of the cross-sectional structure and air flow of the utility model;

[0031] Figure 6 yes Figure 2 A partial enlarged view of middle A;

[0032] Figure 7 yes Figure 4 A partial enlarged view of B. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present utility model can be combined interactively without conflicting with each other. Reference Figure 1-Figure 7 .

[0034] Specific reference Figure 1-5 A circulating fan for a multi-group air purification device includes a body and a support 7. The body includes: a frame 1, a motor bracket 2, a motor 3, fan blades 31, an air outlet grille 4, a rear cover 5, a first filter device 61 and a second filter device 62.

[0035] In this embodiment, check Figure 4 、 Figure 5 The frame 1 is cylindrical and has a hollow inner cavity 11 running through the front and back. The frame is an integrally formed plastic part. A radial air inlet 10 is circumferentially arranged at the rear end of the frame 1. The motor bracket 2 is mounted at the front of the hollow inner cavity 11 of the frame 1. The motor 3 is fixedly mounted on the motor bracket 2, and a fan blade 31 is mounted on the output shaft of the motor 3. The air outlet grille 4 is arranged at the front end outlet position of the hollow inner cavity 11 of the frame 1. The rear cover 5 is detachably mounted at the rear end entrance of the hollow inner cavity 11 of the frame 1. 5 is provided with a rear end air inlet hole 50; the first filter device 61 is arranged in the hollow inner cavity 11 of the frame body 1, and the position of the first filter device 61 corresponds to the position of the radial air inlet hole 10 and is used to filter the air flowing from the radial air inlet hole 10 into the hollow inner cavity 11 of the frame body 1; the second filter device 62 is arranged on the back cover 5, and the position of the second filter device 62 corresponds to the position of the rear end air inlet hole 50 and is used to filter the air flowing from the rear end air inlet hole 50 into the hollow inner cavity 11 of the frame body 1.

[0036] In a specific application, after the circulation fan starts working, the motor 3 drives the fan blades 31 to start rotating. The fan blades 31 send the air in the hollow inner cavity 11 of the frame 1 forward and blow it out at the air outlet grille 4, forming a negative pressure in the hollow inner cavity 11. Therefore, external air simultaneously flows into the hollow inner cavity 11 of the frame 1 from the radial air holes 10 and the end air inlet holes 50. During the process of external air flowing into the hollow inner cavity 11 of the frame 1 from the radial air holes 10 and the end air inlet holes 50, the inflowing air is filtered by the first filter device 61 and the second filter device 62.

[0037] This technical solution allows air to enter through the radial air inlet 10 and the end air inlet 50 at the same time, which can ensure the air volume, wind speed and air supply distance of the circulation fan. The air is filtered by the first filter device 61 and the second filter device 62 at the same time, which can ensure the filtering and purification effect and improve the user experience.

[0038] In some embodiments, the first filter device 61 is a cylindrical filter device, and the first filter device 61 is arranged on the inner wall of the region where the radial air inlet holes 10 are distributed on the frame 1. In the present technical solution, a certain space is provided between the first filter device 61 and the inner wall of the frame 1. Through this space, on the one hand, air can be quickly introduced into the hollow inner cavity 11 of the frame 1 through the radial air inlet holes 10, thereby preventing the first filter device 61 from being blocked in the radial air inlet holes 10 and affecting the air intake. On the other hand, through this space, dust can be prevented from being locally accumulated at the position where the first filter device 61 is partially against the radial air holes 10, thereby preventing the filter from failing. This ensures purification efficiency and extends service life.

[0039] In some embodiments, the second filter device 62 is a block-shaped filter device, and the second filter device 62 is mounted on the inner wall of the back cover 5 corresponding to the position where the rear air inlet hole 50 is provided. In this technical solution, a space is provided between the second filter device 62 and the inner wall of the back cover 5. Through this space, on the one hand, air can be quickly introduced into the hollow inner cavity 11 of the frame body 1 through the rear air inlet hole 50, thereby preventing the second filter device 62 from being blocked by the rear air inlet hole 50 and affecting the air intake. On the other hand, through this space, dust can be prevented from accumulating locally at the position where the second filter device 62 is partially against the rear air inlet hole 50, thereby preventing the filtration from failing. This ensures purification efficiency and extends the service life.

[0040] The first filter device 61 and the second filter device 62 can be existing known filter devices. The implementer can select appropriate types and models according to needs, which will not be described in detail here.

[0041] In some embodiments, reference Figure 6 、 Figure 7The rear cover 5 is provided with a rear cover connecting buckle 51 at the edge. The frame 1 is provided with a rear cover mounting ring plate 12 at the rear end entrance of the hollow inner cavity 11 thereof, which cooperates with the rear cover connecting buckle 51. The rear cover mounting ring plate 12 is provided with a snapping notch 13. The rear cover connecting buckle 51 is inserted into the rear cover mounting ring plate 12 through the snapping notch 13 and rotated to snap onto the rear cover mounting ring plate 12. In specific application, the rear cover connecting buckle 51 is inserted into the snapping notch 13 and then rotated a certain distance. The rear cover connecting buckle 51 can be snapped onto the rear cover mounting ring plate 12, achieving quick assembly. When the rear cover 5 needs to be removed, the reverse operation can be reversed for quick disassembly and cleaning. This structure achieves a detachable connection between the rear cover 5 and the frame 1. The detachable connection structure facilitates inspection or replacement of the first filter device 61 and the second filter device 62 within the frame 1, making maintenance convenient.

[0042] In some embodiments, a second filter device fixing buckle 52 is provided inside the back cover 5. The second filter device fixing buckle 52 is buckled onto the side wall of the second filter device 62 and the second filter device 62 is detachably fixed to the inner wall of the back cover 5. The second filter device fixing buckle 52 can be used to conveniently install and disassemble the second filter device 62, facilitating maintenance, replacement, and the like.

[0043] In some embodiments, the back cover 5 has a handle groove 53 extending inward from its rear end, and the handle groove 53 is formed with an internal support protrusion 54 on the inner wall of the back cover 5. The internal support protrusion 54 is used to support the rear end of the first filter device 61. The handle groove 53 can facilitate users to install and remove the back cover. The internal support protrusion 54 can support the first filter device 61, thereby preventing the first filter device 61 from being deformed due to its own gravity or external impact and affecting the filtering effect, thereby ensuring the stability of the filtering performance and improving reliability.

[0044] In some embodiments, the motor bracket 2 includes an external support portion 21 connected to the inner wall of the frame 1, a motor mounting portion 22 for mounting the motor 3, and a plurality of connecting ridges 23 connected between the external support portion 21 and the motor mounting portion 22. A motor bracket vent 24 is formed between two adjacent connecting ridges 23. When the circulating fan is working, the air inside the hollow inner cavity 11 passes through the motor bracket vent 24 and is sent to the front end.

[0045] In some embodiments, a motor bracket limiting plate 14 is provided on the inner wall of the frame 1, and the rear side of the external support portion 21 of the motor bracket 2 abuts against the motor bracket limiting plate 14. A motor bracket top pressure plate 41 extends backward from the rear end of the air outlet grille 4, and the two are pressed against each other to form an air duct. The motor bracket top pressure plate 41 presses against the front side of the external support portion 21 of the motor bracket 2 and limits the motor bracket 2 to the motor bracket limiting plate 14. With the above structure, when the air outlet grille 4 is fixed to the front port position of the frame 1 by screws, the position of the motor bracket 2 is also synchronously limited and fixed. In actual implementation, in order to ensure the installation reliability and stability of the motor bracket 2, the motor bracket 2 can be fixed inside the frame 1 by screws.

[0046] In some embodiments, the connecting ridge 23 of the motor bracket 2 extends rearwardly and obliquely. This obliquely extending connecting ridge 23 forms a support position on the rear side of the external support portion 21. The front end of the first filter device 61 abuts against the rear wall of the external support portion 21 and is supported at the support position. The obliquely extending connecting ridge 23 forms a bowl-shaped shape for the entire motor bracket 2. The motor 3 is installed in the bowl-shaped space of the motor bracket 2, saving space. In a specific embodiment of the present invention, the external support portion 21, the motor mounting portion 22, and the connecting ridge 23 are integrally formed, and the motor bracket 2 is an integrally formed bracket.

[0047] In some embodiments, the support 7 has two support arms 71, and the support arms 71 are rotatably connected to the side walls of the frame 1 of the fuselage through a rotating shaft. The support 7 can be a support with an electric rotation function or a hand rotation function, and can specifically adopt an existing known support setting form. The implementer can select a suitable support type according to specific needs. A rotation limiting device and an angle fixing device can be set at the rotating shaft. The active limiting device can limit the frame 1 to rotate within a certain angle range, and the angle fixing device is used to limit the frame 1 to a suitable angle. The angle fixing device can adopt a damping type, an elastic buckle type, or other similar devices, which will not be described here.

[0048] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A circulating fan for a multi-group air purification device, characterized in that: The invention comprises a fuselage, wherein the fuselage comprises: A frame (1), the frame (1) is cylindrical and has a hollow inner cavity (11) extending from front to back, and radial air inlet holes (10) are circumferentially arranged at the rear end of the frame (1); A motor bracket (2), the motor bracket (2) being mounted at a front position of the hollow inner cavity (11) of the frame (1); A motor (3), wherein the motor (3) is fixedly mounted on the motor bracket (2), and a fan blade (31) is mounted on an output shaft of the motor (3); An air outlet grille (4), the air outlet grille (4) being arranged at a front end outlet position of the hollow inner cavity (11) of the frame (1); A rear cover (5), the rear cover (5) being detachably mounted at the rear end entrance of the hollow inner cavity (11) of the frame (1), and the rear end air inlet hole (50) being provided on the rear cover (5); a first filter device (61), the first filter device (61) being arranged in the hollow inner cavity (11) of the frame (1), the position of the first filter device (61) corresponding to the position of the radial air inlet hole (10) and being used for filtering air flowing from the radial air inlet hole (10) into the hollow inner cavity (11) of the frame (1); A second filter device (62), the second filter device (62) is arranged on the rear cover (5), the position of the second filter device (62) corresponds to the position of the rear air inlet hole (50) and is used to filter the air flowing from the rear air inlet hole (50) into the hollow inner cavity (11) of the frame (1).

2. The circulating fan of a multi-group air purification device according to claim 1, characterized in that: The first filter device (61) is a cylindrical filter device, and the first filter device (61) is arranged on the inner wall of the region where radial air inlet holes (10) are distributed on the frame (1).

3. The circulating fan of a multi-group air purification device according to claim 1, characterized in that: The second filter device (62) is a block-shaped filter device, and the second filter device (62) is mounted corresponding to the inner wall position of the rear cover (5) where the rear air inlet hole (50) is provided.

4. The circulating fan of a multi-group air purification device according to claim 1, characterized in that: A rear cover connecting buckle (51) is provided at the edge of the rear cover (5); a rear cover mounting ring plate (12) cooperating with the rear cover connecting buckle (51) is provided at the rear end entrance of the hollow inner cavity (11) of the frame (1); a snap-fitting notch (13) is provided on the rear cover mounting ring plate (12); the rear cover connecting buckle (51) is inserted into the interior of the rear cover mounting ring plate (12) through the snap-fitting notch (13) and is rotatably snap-fitted to the rear cover mounting ring plate (12).

5. The circulating fan of a multi-group air purification device according to claim 1, characterized in that: A second filter device fixing buckle (52) is provided inside the rear cover (5), and the second filter device fixing buckle (52) is buckled onto the side wall of the second filter device (62) and detachably fixes the second filter device (62) to the inner wall of the rear cover (5).

6. The circulating fan of a multi-group air purification device according to claim 1, characterized in that: The rear cover (5) has a handle groove (53) extending inward from its rear end. The handle groove (53) is formed with an internal support protrusion (54) on the inner wall of the rear cover (5). The internal support protrusion (54) is used to support the rear end of the first filter device (61) and is used for installing and removing the rear cover (5).

7. The circulating fan of a multi-group air purification device according to claim 1, characterized in that: The motor bracket (2) comprises an external support portion (21) connected to the inner wall of the frame (1), a motor mounting portion (22) for mounting the motor (3), and a plurality of connecting edges (23) connected between the external support portion (21) and the motor mounting portion (22), wherein a motor bracket vent (24) is formed between two adjacent connecting edges (23).

8. The circulating fan of a multi-group air purification device according to claim 7, characterized in that: The inner wall of the frame (1) is provided with a motor bracket limiting plate (14), the rear side of the external support portion (21) of the motor bracket (2) abuts against the motor bracket limiting plate (14), and the rear end of the air outlet grille (4) is extended backward with a motor bracket pressing plate (41), the motor bracket pressing plate (41) presses against the front side of the external support portion (21) of the motor bracket (2) and limits the motor bracket (2) at the motor bracket limiting plate (14), and when the two are pressed against each other, an air duct for air flow outflow is formed.

9. The circulating fan of a multi-group air purification device according to claim 7, characterized in that: The connecting edge (23) of the motor bracket (2) extends obliquely backward, and the connecting edge (23) extending obliquely backward forms a supporting position on the rear side of the external support portion (21), and the front end of the first filter device (61) abuts against the rear wall of the external support portion (21) and is supported at the supporting position.

10. A circulation fan for a multi-group air purification device according to any one of claims 1 to 9, characterized in that: It also includes a support (7), the support (7) having two support arms (71), and the support arms (71) are rotatably connected to the side walls of the frame (1) of the fuselage through a rotating shaft.

Images