Multi-circulation type fresh air machine

Abstract

The utility model discloses a multi-circulation type fresh air ventilator in the related technical field of fresh air ventilators, which comprises a fresh air ventilator main shell and a volute fan arranged in the fresh air ventilator main shell, the upper part of the fresh air ventilator main shell is provided with an air port I, the side edge of the fresh air ventilator main shell is provided with an air port II, the lower part of the fresh air ventilator main shell is provided with an air port III, and the volute fan is arranged in the fresh air ventilator main shell. A filtering window is arranged at one end of the fresh air ventilator main shell, a first rotating supporting frame is fixedly arranged at the end, close to the filtering window, of the volute fan, and a first supporting bearing seat is arranged on the outer side of the first rotating supporting frame. The rotating supporting structures are arranged on the two sides of the volute fan, the volute fan can be driven to rotate under the action of the angle adjusting motor and the gearbox, the baffles are fixedly arranged on the outer side of the volute fan, different air ports can be shielded and sealed in the rotating process of the volute fan, different fresh air circulation channels are formed, and therefore the fresh air circulation effect is improved. Therefore, different circulation modes are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field related to fresh air fans, and specifically relates to a multi-circulation fresh air fan. Background Art

[0002] With the improvement of people's living standards, various air purifiers and formaldehyde removal equipment have appeared in ordinary households, which also reflects people's attention to air pollution and respiratory health. The fresh air fan is an effective air purification equipment that can circulate indoor air. On the one hand, it discharges the indoor polluted air to the outside, and on the other hand, it inputs the fresh air outdoors into the room after sterilization, disinfection, filtration and other measures. The fans inside the existing fresh air fans are mostly fixed structures, the circulating air ducts are fixed, and the circulation method is relatively simple.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the existing technology and provide a multi-circulation fresh air blower. To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0005] The vents are formed on the sides of the fan housing, and the vents are formed on the sides of the fan housing to form a vent. The vents are formed on the sides of the fan housing to form a vent.

[0006] As a further solution of the present invention: the rotating support frame 1 and the rotating support frame 2 are both three-claw support fixed structures, and the outer sides of the rotating support frame 1 and the rotating support frame 2 are provided with a rotating rod structure coaxial with the volute fan to ensure the coordination with each air outlet during the rotation of the volute fan.

[0007] As a further solution of the present invention: a driving gear and a driven gear are provided in the gearbox, the driving gear is installed on the main shaft of the angle adjustment motor, the driving gear and the driven gear are engaged with each other, and the driven gear is installed on the output shaft. The angle adjustment motor drives the volute fan to rotate through the gear transmission assembly to achieve angle adjustment.

[0008] As a further solution of the present invention: the angle adjustment motor uses a stepper motor with a self-locking function, and the angle adjustment motor is equipped with a controller and a driver to send, calculate and control the number of pulses required for angle adjustment, accurately control the rotation angle of the angle adjustment motor, and then control the angle adjustment of the volute fan.

[0009] As a further solution of the present invention: a control valve is installed at one of the air outlets, and the ends of the air outlet one, the air outlet two, and the air outlet three extending into the main casing of the fresh air fan are all curved structures, which have good adaptability with the baffle, thereby ensuring the sealing effect of the baffle on each air outlet.

[0010] As a further solution of the present invention: the air outlet 1 and the air outlet 3 are both equipped with physical filtering, chemical filtering devices and ultraviolet disinfection lamps, and the air outlet 2 is provided with a filter to ensure the air quality of the fresh air system.

[0011] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art.

[0012] The volute fan of the utility model is provided with a rotating support structure on both sides, which can drive the volute fan to rotate under the action of the angle adjustment motor and the gearbox. A baffle is fixedly provided on the outside of the volute fan. During the rotation of the volute fan, different air outlets can be blocked and sealed to form different fresh air circulation channels, thereby realizing different circulation modes.

[0013] The main shell of the fresh air fan of the utility model is provided with air outlet 1, air outlet 2 and air outlet 3. The three air outlets work together with the rotating volute fan and baffle to form four circulation modes: internal circulation air intake, exhaust, indoor air supply and indoor pure fresh air, which can meet diverse market usage needs.

[0014] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is the main view of the utility model;

[0018] Figure 3 This is a schematic diagram of the interior of the main housing of the fresh air blower of the present invention;

[0019] Figure 4 This is a schematic diagram of the installation of the rotating support frame of the utility model;

[0020] Figure 5 This is a schematic diagram of the baffle installation structure of the present utility model;

[0021] Figure 6 This is a schematic diagram of the internal circulation state of the fresh air fan of the utility model;

[0022] Figure 7 Schematic diagram of the exhaust state of the new fan of the utility model

[0023] Figure 8 Schematic diagram of the fresh air supply state of the fresh air fan of the utility model

[0024] Figure 9 This is a schematic diagram of the indoor pure fresh air state of the fresh air fan of the utility model.

[0025] In the figure: 1. Fresh air fan main casing; 2. Air outlet 1; 3. Air outlet 2; 4. Air outlet 3; 5. Filter window; 6. Volute fan; 7. Rotating support frame 1; 8. Support bearing seat 1; 9. Rotating support frame 2; 10. Support bearing seat 2; 11. Output shaft; 12. Gearbox; 13. Angle adjustment motor; 14. Driving gear; 15. Driven gear; 16. Baffle; 17. Auxiliary air inlet; 18. Fan air outlet; 19. Ventilation window.

[0026] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0028] like Figures 1 to 9 As shown, a multi-circulation fresh air fan, a fresh air fan main housing 1 and a volute fan 6 arranged inside the fresh air fan main housing 1, an air inlet 2 is opened on the upper part of the fresh air fan main housing 1, an air inlet 2 is set at the side of the fresh air fan main housing 1, an air inlet 3 is set at the bottom of the fresh air fan main housing 1, a filter window 5 is set at one end of the fresh air fan main housing 1, a rotating support frame 7 is fixedly set at one end of the volute fan 6 near the filter window 5, a supporting bearing seat 8 is set on the outer side of the rotating support frame 7, and a rotating A support frame 29 is provided with a support bearing seat 210 on the outer side of the rotating support frame 29, and an output shaft 11 is provided in a rotating connection inside the support bearing seat 210. A gearbox 12 is provided at the end of the output shaft 11 away from the support bearing seat 210, and an angle adjustment motor 13 is fixedly provided on the side of the gearbox 12. A baffle 16 is fixedly provided on the outer side of the volute fan 6, and a ventilation window 19 is provided on the baffle 16 at a position corresponding to the fan outlet 18, and an auxiliary air inlet 17 is provided on the side of the baffle 16 for auxiliary air intake.

[0029] Among them, the rotating support frame 1 7 and the rotating support frame 2 9 are both three-claw support fixed structures, and the outer side of the rotating support frame 1 7 and the rotating support frame 2 9 is provided with a rotating rod structure coaxial with the volute fan 6 to ensure the coordination with each air outlet during the rotation of the volute fan 6.

[0030] A driving gear 14 and a driven gear 15 are provided in the gearbox 12. The driving gear 14 is installed on the main shaft of the angle adjustment motor 13. The driving gear 14 and the driven gear 15 are engaged with each other. The driven gear 15 is installed on the output shaft 11. The angle adjustment motor 13 drives the volute fan 6 to rotate through the gear transmission assembly to achieve angle adjustment.

[0031] The angle adjustment motor 13 uses a stepper motor with a self-locking function. The angle adjustment motor 13 is equipped with a controller and a driver to send, calculate, and control the number of pulses required for angle adjustment, accurately control the rotation angle of the angle adjustment motor 13, and then control the angle adjustment of the volute fan 6.

[0032] A control valve is installed at air outlet 1 2. The ends of air outlet 1 2, air outlet 2 3 and air outlet 3 4 extending into the main casing 1 of the fresh air fan are all curved structures and have good adaptability to the baffle 16, thereby ensuring the sealing effect of the baffle 16 on each air outlet.

[0033] Air outlets 1-2 and 3-4 are equipped with physical filtration, chemical filtration devices and ultraviolet disinfection lamps. Air outlets 2-3 are equipped with filters to ensure the air quality of the fresh air system.

[0034] The working principle of this utility model is:

[0035] Example 1, as shown in the attached Figure 6 As shown, the angle adjustment motor 13 is started, and the angle adjustment motor 13 drives the driving gear 14 to rotate. The driving gear 14 and the driven gear 15 are meshed with each other, and the output shaft 11 drives the rotating support frame 2 9 to rotate along the supporting bearing seat 2 10. At the same time, the rotating support frame 1 7 rotates along the supporting bearing seat 1 8 to realize the rotation of the volute fan 6. The fan outlet 18 of the volute fan 6 is adjusted to the position of the air outlet 1 2, so that the position of the vent window 19 on the baffle 16 corresponds to the air outlet 1 2. At this time, the control valve at the air outlet 1 2 is opened, and the sealing section of the baffle 16 cooperates with the air outlet 2 3 to seal the air outlet 2 3, so that air exchange between indoor and outdoor cannot be carried out. The air outlet 1 2, the air outlet 3 4 and the volute fan 6 form a circulation channel, the air outlet 3 4 is the air inlet, and the air outlet 1 2 is the air outlet, forming an indoor circulation mode;

[0036] Example 2, as shown in the attached Figure 7 As shown, the angle adjustment motor 13 is started, and the angle adjustment motor 13 drives the driving gear 14 to rotate. The driving gear 14 and the driven gear 15 are meshed with each other, and the output shaft 11 drives the rotating support frame 2 9 to rotate along the supporting bearing seat 2 10. At the same time, the rotating support frame 1 7 rotates along the supporting bearing seat 1 8 to realize the rotation of the volute fan 6. The fan outlet 18 of the volute fan 6 is adjusted to the position of the air outlet 2 3, so that the position of the vent window 19 on the baffle 16 corresponds to the air outlet 2 3. At this time, the sealing section of the baffle 16 cooperates with the air outlet 3 4 to seal the air outlet 3 4, so that air exchange can be carried out indoors and outdoors. The air outlet 1 2, the air outlet 2 3 and the volute fan 6 form a circulation channel. The control valve at the air outlet 1 2 is opened, the air outlet 1 2 is the air inlet, and the air outlet 2 3 is the air outlet, forming an indoor exhaust mode.

[0037] Example 3, as shown in the attached Figure 8 As shown, the angle adjustment motor 13 is started, and the angle adjustment motor 13 drives the driving gear 14 to rotate. The driving gear 14 and the driven gear 15 are meshed with each other, and the output shaft 11 drives the rotating support frame 2 9 to rotate along the supporting bearing seat 2 10. At the same time, the rotating support frame 1 7 rotates along the supporting bearing seat 1 8 to realize the rotation of the volute fan 6. The fan outlet 18 of the volute fan 6 is adjusted to the position of the air outlet 3 4, so that the position of the vent window 19 on the baffle 16 corresponds to the air outlet 3 4. At this time, the sealing section of the baffle 16 is suspended in the air, and the control valve at the air outlet 1 2 is opened. The air outlet 1 2 is the indoor air inlet, the air outlet 2 3 is the outdoor air inlet, and the air outlet 3 4 is the indoor air outlet, forming a fresh air supply mode;

[0038] Example 4, as shown in the attached Figure 9 As shown, the angle adjustment motor 13 is started, and the angle adjustment motor 13 drives the driving gear 14 to rotate. The driving gear 14 and the driven gear 15 are meshed with each other, and the output shaft 11 drives the rotating support frame 2 9 to rotate along the supporting bearing seat 2 10. At the same time, the rotating support frame 1 7 rotates along the supporting bearing seat 1 8 to realize the rotation of the volute fan 6. The fan outlet 18 of the volute fan 6 is adjusted to the position of the air outlet 3 4, so that the position of the vent window 19 on the baffle 16 corresponds to the air outlet 3 4. At this time, the sealing section of the baffle 16 is suspended, the control valve at the air outlet 1 2 is closed, the air outlet 2 3 is the outdoor air inlet, and the air outlet 3 4 is the indoor air outlet, forming an outdoor air supply mode;

[0039] The utility model provides a rotating support structure on both sides of the volute fan 6, which can drive the volute fan 6 to rotate under the action of the angle adjustment motor 13 and the gearbox 12. A baffle 16 is fixedly provided on the outside of the volute fan 6. During the rotation of the volute fan 6, different air outlets can be blocked and sealed to form different fresh air circulation channels, thereby realizing different circulation modes of the fresh air fan main shell 1. There are air outlet 1 2, air outlet 2 3, and air outlet 3 4. The three air outlets work together with the rotating volute fan 6 and the baffle 16 to form four circulation modes: internal circulation air intake, exhaust, indoor air supply, and indoor pure fresh air, which can meet diverse market usage needs.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A multi-circulation fresh air fan, comprising a fresh air fan main housing (1) and a volute fan (6) arranged inside the fresh air fan main housing, characterized in that: The upper part of the main housing (1) of the fresh air fan is provided with an air inlet 1 (2), the side of the main housing (1) of the fresh air fan is provided with an air inlet 2 (3), the lower part of the main housing (1) of the fresh air fan is provided with an air inlet 3 (4), one end of the main housing (1) of the fresh air fan is provided with a filter window (5), the end of the volute fan (6) close to the filter window (5) is fixedly provided with a rotating support frame 1 (7), the outer side of the rotating support frame 1 (7) is provided with a supporting bearing seat 1 (8), the other end of the volute fan (6) is fixedly provided with a rotating support frame 2 (9), the rotating support frame 2 A supporting bearing seat 2 (10) is provided on the outer side of (9), an output shaft (11) is provided in a rotatable connection inside the supporting bearing seat 2 (10), a gearbox (12) is provided at one end of the output shaft (11) away from the supporting bearing seat 2 (10), an angle adjustment motor (13) is fixedly provided on the side of the gearbox (12), a baffle (16) is fixedly provided on the outer side of the volute fan (6), a ventilation window (19) is provided on the baffle (16) at a position corresponding to the fan outlet (18), and an auxiliary air inlet (17) is provided on the side of the baffle (16).

2. A multi-circulation fresh air blower according to claim 1, characterized in that: The first rotating support frame (7) and the second rotating support frame (9) are both three-claw support fixing structures, and a rotating rod structure coaxial with the volute fan (6) is provided on the outer side of the first rotating support frame (7) and the second rotating support frame (9).

3. A multi-circulation fresh air blower according to claim 2, characterized in that: A driving gear (14) and a driven gear (15) are provided in the gearbox (12); the driving gear (14) is mounted on the main shaft of the angle adjustment motor (13); the driving gear (14) and the driven gear (15) are meshed with each other; and the driven gear (15) is mounted on the output shaft (11).

4. A multi-circulation fresh air blower according to claim 3, characterized in that: The angle adjustment motor (13) is a stepping motor with a self-locking function, and the angle adjustment motor (13) is equipped with a controller and a driver.

5. The multi-circulation fresh air blower according to claim 4, characterized in that: A control valve is installed at the air outlet 1 (2), and one end of the air outlet 1 (2), the air outlet 2 (3), and the air outlet 3 (4) extending into the main housing (1) of the fresh air blower are all arc-shaped structures.

6. The multi-circulation fresh air blower according to claim 5, characterized in that: The air outlet 1 (2) and the air outlet 3 (4) are both equipped with physical filtering, chemical filtering devices and ultraviolet disinfection lamps, and the air outlet 2 (3) is equipped with a filter screen.

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