Multifunctional fresh air machine and use method

Abstract

The present application relates to the field of fresh air heat exchange technology, in particular to a multifunctional fresh air machine and a use method, the main body of the multifunctional fresh air machine is a cuboid, which is divided into a power area, a heat exchange area and a control area. The present application can intelligently switch different working modes according to different weather conditions and indoor and outdoor temperature differences, thereby reducing the loss of the total heat exchanger and improving the overall exchange efficiency. In addition, the present application uses a symmetrical air duct structure inside, according to the demand of space site layout, the installation direction of the fresh air machine is flexibly selected, so that the system pipeline arrangement is more reasonable.

Description

Technical Field

[0001] The present invention relates to the field of fresh air heat exchange technology, and in particular to a multifunctional fresh air blower and a method of using the same. Background Art

[0002] A heat exchange fresh air fan is a common ventilation device that simultaneously exchanges air and recovers heat or cooling through its own heat exchanger. With the increasing diversity of modern housing designs, new requirements for fresh air fan installation are also being placed on the installation. Currently, fresh air fans are generally installed in a single orientation, with the supply and return air outlets fixed relative to each other after installation, complicating piping design and installation. Furthermore, when the indoor and outdoor temperature difference is small, the heat exchanger between the fresh air and return air not only fails to effectively exchange heat but also increases air resistance and energy consumption.

[0003] The traditional single heat exchange mode of the full heat exchange fresh air fan will reduce the service life of the full heat exchanger and cause certain energy loss. Therefore, it is urgent to design a multifunctional full heat exchange fresh air fan to meet market demand. Summary of the Invention

[0004] The installation direction of existing full-heat exchange fresh air fans is relatively fixed, which makes pipeline installation difficult. In addition, the traditional single heat exchange mode causes a large amount of energy loss. To address the above problems, the present invention provides a multifunctional fresh air fan. The multifunctional fresh air fan has a rectangular main body, including an upper cover plate, a lower cover plate, a first side plate, a second side plate, a third side plate, and a fourth side plate. From the third side plate to the first side plate, the fan is divided into a power zone, a heat exchange zone, and a control zone.

[0005] The power zone includes air outlet a, air outlet b, fan a, and fan b. Air outlet a is arranged on the outside of the second side panel, air outlet b is arranged on the outside of the fourth side panel, fan a is arranged on the inside of the second side panel, and fan b is arranged on the inside of the fourth side panel. The bases of fans a and b are both fixed on the lower cover plate, and a fan partition is provided between them. The four sides of the fan partition are respectively sealed with the lower cover plate, the third side panel, the upper cover plate, and the first partition plate.

[0006] The heat exchange area includes a filter a, a heat exchanger and a filter b, and the second side plate and the fourth side plate are respectively fixed with inclined baffles a and baffles b, the inclined baffle a is provided with a hinge a, and the inclined baffle b is provided with a hinge b, the upper edges of the inclined baffles a and the inclined baffles b are respectively fixedly connected to the horizontally arranged filter platform a and filter platform b, and the sides of the inclined baffles a, the inclined baffles b, the filter platform a and the filter platform b are respectively fixed and sealed with the first partition plate and the second partition plate, the filter a is installed on the filter platform a, and the filter b is installed on the filter platform b, and the two ends of the filters a and the filter b are respectively in airtight contact with the first partition plate and the second partition plate, and the first partition plate is provided with a fixed limiting slot, and the edges on both sides of the heat exchanger are respectively fixedly connected to the bottom edge of the filter platform a and the bottom edge of the filter platform b, and the upper and lower edges are respectively fitted with the upper cover plate and the lower cover plate, and a channel opening a is provided between the filter platform a and the bottom of the heat exchanger, and a channel opening b is provided between the filter platform b and the bottom of the heat exchanger;

[0007] The control area includes air inlet b, air inlet a and a control partition. Air inlet b is arranged on the outside of the second side panel, and air inlet a is arranged on the outside of the fourth side panel. There is an inclination angle between the control partition and the second partition. The bottom edge of the control partition is tightly connected to the lower cover plate, one side edge is in contact with the second partition, and the other side edge is tightly connected to the junction line of the first side panel and the fourth side panel. The top edge is connected to the upper cover plate. Switch a is arranged on the second partition, and its fixed edge is tightly connected to the second side panel. Switch b is arranged on the control partition. Switch c and switch d are both arranged on the second partition, and their positions are close to the heat exchanger. The fixed edges are tightly connected to the upper cover plate. Switch e is arranged on the control partition, and its fixed edge is perpendicular to the second partition. Switch f is arranged on the second partition, and its fixed edge is tightly connected to the fourth side panel.

[0008] Furthermore, both fans a and b are centrifugal fans.

[0009] Furthermore, a main board is provided on the outer side of the fourth side board.

[0010] Furthermore, an inspection port is provided on the upper cover plate to facilitate inspection or replacement of the heat exchanger.

[0011] Furthermore, the third side panel is provided with a lifting foot to facilitate the rapid lifting of the present invention.

[0012] Furthermore, each switch in the control area can be rotated at an angle of 0° to 90°.

[0013] Furthermore, the hinge a and the hinge b can rotate at an angle of 0° to 45°.

[0014] Furthermore, the regulating partition is a three-dimensional structure, in which the side surface close to the first side plate is perpendicular to the lower cover plate, the bottom edge of the side surface is tightly connected to the lower cover plate, the side surface close to the second partition plate is perpendicular to the second partition plate, and intersects with the upper cover plate in a slope shape, and the angle between the side surface and the upper cover plate is 15°~45°.

[0015] Furthermore, any one or any combination of hinge a, hinge b, switch a, switch b, switch c, switch d, switch e and switch f is in an open or closed state to meet the different working modes of the multifunctional fresh air fan.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The multifunctional fresh air fan of the present invention adopts a symmetrical air duct design inside the power zone and heat exchange zone. The fresh air duct and the exhaust duct can be interchanged without affecting all the performance of the fresh air fan. The symmetrical air duct design provides greater flexibility for installation. For scenarios where the supply air outlet and the return air outlet have relative position requirements after installation, the present invention can cope with it well. After mirror installation, the supply air outlet and the return air outlet can exchange relative positions, which provides convenience for pipeline design and installation.

[0018] 2. The present invention discloses a multifunctional fresh air fan, which is provided with a main air duct, a full-bypass air duct and an internal circulation air duct at the fresh air inlet. After the introduced fresh air enters the casing, there are three channels. One is that the fresh air passes through the main air duct and the total heat exchanger to allow the outdoor fresh air to exchange heat and moisture with the indoor exhaust air before entering the room; one is that when the temperature difference between indoor and outdoor is not large, the fresh air passes through the total-bypass air duct, does not pass through the total heat exchanger and does not exchange heat with the indoor exhaust air, and is directly introduced into the room after filtering; the other is that when encountering bad weather, the fresh air passes through the internal circulation air duct, does not exchange air with the outdoor air, and can directly purify the indoor return air.

[0019] Furthermore, when the temperature difference between indoor and outdoor is not large, the fresh air passes through the full bypass duct and is directly filtered and discharged outdoors without passing through the full heat exchanger, thereby increasing the service life of the full heat exchanger and achieving energy saving effects.

[0020] Furthermore, when encountering severe weather such as sandstorms, haze, etc., the internal circulation air duct can purify the indoor return air and act as an air purifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a partial top view of the multifunctional fresh air blower of the present invention;

[0022] Figure 2 This is a partial left rear top view of the multifunctional fresh air blower of the present invention;

[0023] Figure 3 This is a partial right front top view of the multifunctional fresh air blower of the present invention;

[0024] Figure 4 This is a partial cross-sectional view of the multifunctional fresh air fan of the present invention from the first side panel to the third side panel;

[0025] Figure 5 This is the overall right front top view of the multifunctional fresh air fan of the present invention.

[0026] The numbers of the parts are:

[0027] 11. Upper cover, 12. Lower cover, 13. First side panel, 14. Second side panel, 15. Third side panel, 16. Fourth side panel, 17. First partition, 18. Second partition, 19. Main board, 110. Inspection port, 111. Lifting foot;

[0028] 20. Power zone, 21. Air outlet a, 22. Air outlet b, 23. Fan a, 24. Fan b, 25. Fan partition;

[0029] 30. Heat exchange area, 31. Filter a, 32. Heat exchanger, 33. Filter b, 34. Inclined baffle a, 35. Inclined baffle b, 36. Hinge a, 37. Hinge b, 38. Filter platform a, 39. Filter platform b, 310. Limiting slot, 311. Channel opening a, 312. Channel opening b;

[0030] 40. Control area, 41. Air inlet b, 42. Air inlet a, 43. Control partition, 44. Switch a, 45. Switch b, 46. Switch c, 47. Switch d, 48. Switch e, 49. Switch f. DETAILED DESCRIPTION

[0031] The present invention is described below with reference to examples, which are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] like Figures 1-5 As shown, the present invention provides a multifunctional fresh air fan, whose main body is a rectangular parallelepiped, including an upper cover plate 11, a lower cover plate 12, a first side plate 13, a second side plate 14, a third side plate 15 and a fourth side plate 16, which are divided into a power area 20, a heat exchange area 30 and a control area 40 from the third side plate 15 to the first side plate 13;

[0033] like Figure 1As shown, the power area 20 includes air outlet a21, air outlet b22, fan a23 and fan b24, the fresh air outlet a21 is arranged outside the second side plate 14, the exhaust air outlet b22 is arranged outside the fourth side plate 16, the fan a23 is arranged inside the second side plate 14, the fan b24 is arranged inside the fourth side plate 16, the bases of the fan a23 and the fan b24 are fixed on the lower cover plate 12, and the fan partition 25 is arranged between the two, and the four edges of the fan partition 25 are in close connection with the lower cover plate 12, the third side plate 15, the upper cover plate 11 and the first partition 17 respectively;

[0034] As shown in Figure 1 and Figure 4 , the heat exchange area 30 includes filter a31, heat exchanger 32 and filter b33, the second side plate 14 and the fourth side plate 16 are respectively fixed with inclined baffle a34 and inclined baffle b35, the inclined baffle a34 is provided with hinge a36, the inclined baffle b35 is provided with hinge b37, the upper edges of the inclined baffle a34 and the inclined baffle b35 are respectively fixedly connected with horizontally arranged filter platform a38 and filter platform b39, the side edges of the inclined baffle a34, the inclined baffle b35, the filter platform a38 and the filter platform b39 are respectively fixedly and closely connected with the first partition 17 and the second partition 18, the filter a31 is installed on the filter platform a38, the filter b33 is installed on the filter platform b39, the two ends of the filter a31 and the filter b33 are respectively in close contact with the first partition 17 and the second partition 18, the first partition 17 is provided with limiting clamping groove 310, the edges of the heat exchanger 32 on both sides are respectively fixedly connected with the bottom edges of the filter platform a38 and the filter platform b39, and the upper and lower edges thereof are respectively in close contact with the upper cover plate 11 and the lower cover plate 12, the filter platform a38 and the heat exchanger 32 below are provided with channel opening a311, the filter platform b39 and the heat exchanger 32 below are provided with channel opening b312, and the outer side of the fourth side plate 16 is provided with main board 19;

[0035] As shown in Figure 1 and Figure 5 , the control area 40 includes air inlet b41, air inlet a42 and control partition 43, the exhaust air inlet b41 is arranged outside the second side plate 14, the fresh air inlet a42 is arranged outside the fourth side plate 16, the control partition 43 has an inclined angle between the second partition 18, the bottom edge of the control partition 43 is closely connected with the lower cover plate 12, one side edge is closely connected with the second partition 18, the other side edge is closely connected with the intersection line of the first side plate 13 and the fourth side plate 16, and the top edge is connected with the upper cover plate 11, as shown in Figure 2 and Figure 3As shown, switch a44 is arranged on the second partition 18, and its fixed edge is tightly connected to the second side plate 14; switch b45 is arranged on the regulating partition 43; switch c46 and switch d47 are both arranged on the second partition 18, and their positions are close to the heat exchanger 32; their fixed edges are tightly connected to the upper cover plate 11; switch e48 is arranged on the regulating partition 43, and its fixed edge is perpendicular to the second partition 18; switch f49 is arranged on the second partition 18, and its fixed edge is tightly connected to the fourth side plate 16.

[0036] like Figure 5 As shown, an inspection port 110 is provided on the upper cover plate 11 to facilitate inspection or replacement of the heat exchanger 32 .

[0037] like Figure 2 As shown, a lifting foot 111 is provided on the third side plate 15 to facilitate rapid lifting of the present invention.

[0038] like Figures 1-3 As shown, the regulating partition 43 is a three-dimensional structure, in which the side surface close to the first side plate 13 is perpendicular to the lower cover plate 12, the bottom edge of the side surface is tightly connected to the lower cover plate 12, the side surface close to the second partition plate 18 is perpendicular to the second partition plate 18, and intersects with the upper cover plate 11 in a slope shape, and the angle between the side surface and the upper cover plate 11 is 15°~45°.

[0039] It should be noted that in the present invention, hinge a36, hinge b37, switch a44, switch b45, switch c46, switch d47, switch e48 and switch f49 constitute an air duct switching device, wherein any one or any combination of the switches is in an on or off state to meet the different working modes of the multifunctional fresh air fan.

[0040] like Figures 1-5 As shown, the multifunctional fresh air blower provided by the present invention has three working modes, namely normal full heat exchange mode, full bypass + no heat exchange mode, and internal circulation + no heat exchange mode. The controller judges the temperature information in the air duct to adjust the operation mode of the whole machine, achieving intelligent switching of multiple working modes. Specifically:

[0041] When the present invention is in the normal full heat exchange mode: when the temperature difference between indoor and outdoor is large, hinges a36, hinges b37, switches a44, switch b45, switch c46, switch d47, switch e48 and switch f49 are all closed, and the fresh air passes through the main air duct through the filter-heat exchanger-filter, allowing the outdoor fresh air to exchange moisture and heat with the indoor exhaust air before entering the room to achieve indoor air purification.

[0042] When the application is in full bypass + no heat exchange mode: when the indoor and outdoor temperature difference is not big, at this time the switch c46 is opened, the rest of the switches are all closed, the fresh air is filtered and discharged into the indoor through the full bypass air duct without passing through the heat exchanger, in the case of avoiding damage to the heat exchanger, the indoor and outdoor air replacement is completed, and the outdoor circulation effect is achieved.

[0043] When the application is in the internal circulation + no heat exchange mode: in the case of encountering sandstorm, haze and other severe weather, at this time the switch a44 is opened, the rest of the switches are all closed, and only the indoor fan works alone, the indoor air is filtered and then enters the indoor through the internal circulation air duct without passing through the total heat exchanger, and the purification treatment of the indoor return air can be realized.

[0044] The above only describes the preferred embodiments of the application and is not used to limit the application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A multifunctional fresh air blower, comprising an upper cover plate (11), a lower cover plate (12), a first side plate (13), a second side plate (14), a third side plate (15) and a fourth side plate (16), characterized in that: From the third side plate (15) to the first side plate (13), there are a power zone (20), a heat exchange zone (30), and a control zone (40) in sequence; a first partition plate (17) is provided between the power zone (20) and the heat exchange zone (30); and a second partition plate (18) is provided between the heat exchange zone (30) and the control zone (40); The power zone (20) includes an air outlet a (21), the air outlet a (21) is arranged on the outside of the second side plate (14), the air outlet b (22) is arranged on the outside of the fourth side plate (16), a fan a (23) is arranged on the inside of the second side plate (14), a fan b (24) is arranged on the inside of the fourth side plate (16), and a fan partition (25) is arranged between the two fans; The heat exchange zone (30) includes a filter a (31) and a filter b (33), which are respectively mounted on a filter platform a (38) and a filter platform b (39), the outer edge of the filter platform a (38) is connected to an inclined baffle a (34), and the outer edge of the filter platform b (39) is connected to an inclined baffle b (35), a heat exchanger (32) is provided between the two filters, a channel opening a (311) is provided below the filter platform a (38) and the heat exchanger (32), and a channel opening b (312) is provided below the filter platform b (39) and the heat exchanger (32); The control area (40) includes an air inlet b (41), the air inlet b (41) is arranged on the outside of the second side plate (14), the air inlet a (42) is arranged on the outside of the fourth side plate (16), and a control partition (43) is arranged inside the control area (40); The bases of the fans a (23) and the fans b (24) are fixed on the lower cover (12), and the four sides of the fan partition (25) are respectively sealed with the lower cover (12), the third side plate (15), the upper cover (11) and the first partition (17); the second side plate (14) and the fourth side plate (16) are respectively fixed with the inclined baffle a (34) and the inclined baffle b (35), the inclined baffle a (34) is provided with a hinge a (36), the inclined baffle b (35) is provided with a hinge b (37), the inclined baffle a (34), the inclined baffle b (35) and the filter flat plate are respectively fixed with the inclined baffle a (34), the inclined baffle b (35) and the filter flat plate. The sides of the platform a (38) and the filter platform b (39) are fixedly and tightly connected to the first partition (17) and the second partition (18), respectively. The two ends of the filter a (31) and the filter b (33) are in tight contact with the first partition (17) and the second partition (18), respectively. The first partition (17) is provided with a limit slot (310). The upper and lower edges of the heat exchanger (32) are respectively fitted with the upper cover (11) and the lower cover (12), and the edges on both sides of the heat exchanger (32) are respectively connected to the bottom edges of the filter platform a (38) and the filter platform b (39); The bottom edge of the regulating partition (43) is tightly connected to the lower cover plate (12), one side edge is in contact with the second partition plate (18), the other side edge is tightly connected to the boundary line between the first side plate (13) and the fourth side plate (16), and the top edge is connected to the upper cover plate (11). The second partition plate (18) is provided with a switch a (44), a switch c (46), a switch d (47) and a switch f (49). The fixed edge of the switch a (44) is tightly connected to the second side plate (14). The positions of the switches c (46) and d (47) are close to the heat exchanger (32). The fixed edges are tightly connected to the upper cover plate (11). The fixed edge of the switch f (49) is tightly connected to the fourth side plate (16). The regulating partition plate (43) is provided with a switch b (45) and a switch e (48). The fixed edge of the switch e (48) is perpendicular to the second partition plate (18).

2. The multifunctional fresh air blower according to claim 1, characterized in that: The hinge a (36) and the hinge b (37) can rotate at an angle of 0° to 45°.

3. The multifunctional fresh air blower according to claim 1, characterized in that: The regulating partition (43) is a three-dimensional structure, wherein the side surface close to the first side plate (13) is perpendicular to the lower cover plate (12), the bottom edge of the side surface is tightly connected to the lower cover plate (12), the side surface close to the second partition plate (18) is perpendicular to the second partition plate (18), and intersects with the upper cover plate (11) in a sloped shape, and the angle between the side surface and the upper cover plate (11) is 15° to 45°.

4. The multifunctional fresh air blower according to claim 1, characterized in that: Each switch in the control area (40) can be rotated at an angle of 0° to 90°.

5. The multifunctional fresh air blower according to claim 1, characterized in that: A mainboard (19) is provided on the outer side of the fourth side panel (16); an inspection port (110) is provided on the upper cover panel (11); and a lifting foot (111) is provided on the third side panel (15).

6. A method for using the multifunctional fresh air blower according to any one of claims 1 to 5, characterized in that: Any one or any combination of the hinge a (36), hinge b (37), switch a (44), switch b (45), switch c (46), switch d (47), switch e (48) and switch f (49) is in an open or closed state.

Images