CN215570974U - New fan trades wind gap air filter structure - Google Patents

Abstract

The utility model discloses an air filtering structure for an air exchange port of a fresh air fan, which comprises a shell, wherein an outdoor air inlet mechanism and an indoor air inlet mechanism are respectively arranged above the outer walls of two sides of the shell, and the outdoor air inlet mechanism comprises a first U-shaped mounting plate, a second rainproof shutter, a first G02 primary effect filter screen, a first G3 primary effect filter screen, a first M5 primary effect filter screen, a first box body, a first H13 high-efficiency filter screen, an air supply fan, a first ultraviolet lamp, a first fixing plate, a first fixing hole, a second air outlet, a first sealing door and a first safety lock. The utility model solves the problems that the air filtering effect of the air exchanging port of the existing fresh air fan is poor and various filter screens are inconvenient to replace or clean; the utility model can effectively filter indoor and outdoor air, avoids the condition that pollutants in outdoor air enter the room or pollutants in the indoor air are discharged to the outside, is convenient for replacing or cleaning various filter screens, and has strong practicability.

Description

New fan trades wind gap air filter structure

Technical Field

The utility model relates to the technical field of new fan equipment, in particular to an air filtering structure for an air exchanging opening of a new fan.

Background

The fresh air machine is an effective air purification device, can circulate indoor air, on one hand, discharges dirty indoor air outdoors, on the other hand, inputs outdoor fresh air into the room after measures such as sterilization, disinfection, filtration and the like, and ensures that the room is fresh and clean air at every moment; new fan application new trend convection current patent technique through independently supplying air and induced air, makes the room air realize the convection current to the furthest carries out the room air replacement, and the new fan built-in multi-functional clean system of putting guarantees to get into indoor air clean and healthy. The new fan mainly divide into two types of exhaust formula new fan and air supply formula new fan, can install under most indoor environment, simple to operate uses comfortablely.

However, the existing air filtering structure for the air exchanging port of the fresh air fan has poor air filtering effect, the incompletely filtered air is directly conveyed indoors, certain pollution is caused to the indoor environment, the incompletely filtered air is directly discharged outdoors, certain pollution is caused to the outdoor environment, and various filter screens are inconvenient to replace or clean; therefore, the existing use requirements are not satisfied.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an air filtering structure for an air exchanging opening of a fresh air fan, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: an air filtering structure for an air exchange opening of a new fan comprises a shell, wherein an outdoor air inlet mechanism and an indoor air inlet mechanism are respectively arranged above outer walls on two sides of the shell, the outdoor air inlet mechanism comprises a first U-shaped mounting plate, a second rainproof shutter, a first G02 primary filter screen, a first G3 primary filter screen, a first M5 middle-effect filter screen, a first box body, a first H13 high-efficiency filter screen, an air supply fan, a first ultraviolet lamp, a first fixing plate, a first fixing hole, a second air outlet, a first sealing door and a first safety lock, a first G02 primary filter screen, a first G3 primary filter screen, a first M5 middle-effect filter screen, a first H13 high-efficiency filter screen and an air supply fan are arranged on one side of the inside of the first box body from left to right, the top ends and the bottom ends of the first G02 primary filter screen, the first G3 primary filter screen, the first M5 middle-effect filter screen and the first H13 high-efficiency filter screen are all arranged in a U-shaped groove on the first U-shaped mounting plate, and the top and the bottom outer wall of first G02 just imitate filter screen, first G3 just imitate filter screen, first M5 well-being filter screen and the high-efficient filter screen of first H13 all with the cell wall gap connection in the U type groove on the first U type mounting panel, first U type mounting panel is installed on inside top and bottom of first box, one side of air feed fan is provided with first ultraviolet lamp, and just first ultraviolet lamp installs the one side at the inside top of first box and bottom, one side outer wall central point of first box puts and is provided with the rain-proof shutter of second, the second air outlet has been seted up to the opposite side outer wall central point of first box, indoor air inlet mechanism includes second U type mounting panel, third air inlet, second G02 just imitates filter screen, the first filter screen of second G3, the second M5 well-being filter screen, the two unification filter screens of RCD, second box, second ultraviolet lamp, the high-efficient filter screen of second H13 of airing exhaust fan, the high-efficient filter screen of second H13, Second fixed plate, second fixed orifices, third air outlet, second sealing door and second safety lock, the inside of second box has set gradually second G02 just to imitate filter screen, second G3 just imitate filter screen, second M5 well effect filter screen, two unification filter screens of RCD, the high-efficient filter screen of second H13 and the fan of airing exhaust from the right side to a left side, the U type inslot on second U type mounting panel is all installed to the top and the bottom of second G02 just imitate filter screen, second G3 just imitate filter screen, second M5 well effect filter screen, two unification filter screens of RCD and the high-efficient filter screen of second H13, and the first filter screen of second G02 just imitates, the first filter screen of second G3 just imitates filter screen, the second M5 well effect filter screen, the two unification filter screens of RCD and the high-efficient filter screen of second H13 top and bottom outer wall and the cell wall gap connection in the U type groove on the second U type mounting panel, the inside top and the bottom of second U type mounting panel are installed, the fan of second U type mounting panel is provided with the ultraviolet lamp, and the second ultraviolet lamp is installed on one side of the inside top and the bottom of second box, the third air outlet has been seted up to one side outer wall central point of second box, the third air inlet has been seted up to the opposite side outer wall central point of second box, first air intake and second air intake have been seted up respectively to the both sides outer wall top of casing, the both sides outer wall below of casing is provided with first rain-proof shutter and first air outlet respectively, the inside central point of casing puts and is provided with high-efficient heat exchanger, high-efficient heat exchanger's top and bottom all are connected with the inside top and the bottom of casing respectively through first baffle, high-efficient heat exchanger's both sides all are connected with the both sides inner wall of casing respectively through the second baffle.

Preferably, first fixed plates are installed on one sides of the top end and the bottom end of the first box body, first fixed holes are formed in the outer wall of each first fixed plate, and the first fixed plates on the outdoor air inlet mechanisms are connected with the shell through fastening bolts.

Preferably, a first sealing door is arranged on the front end face of the first box body, and a first safety lock is arranged on one side of the front end face of the first sealing door.

Preferably, the second fixing plates are mounted on one sides of the top end and the bottom end of the second box body, second fixing holes are formed in the outer walls of the plurality of second fixing plates, and the second fixing plates on the indoor air inlet mechanism are connected with the shell through fastening bolts.

Preferably, the first air inlet and the second air outlet are communicated with each other, the second air inlet and the third air outlet are communicated with each other, and horizontal center lines of the first air inlet, the second air outlet, the second air inlet and the third air outlet are overlapped with each other.

Preferably, a second sealing door is arranged on the front end face of the second box body, and a second safety lock is arranged on one side of the front end face of the second sealing door.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the utility model can effectively filter the outdoor air through the arrangement of the outdoor air inlet mechanism, the first G02 primary filter screen, the first G3 primary filter screen, the first M5 intermediate filter screen and the first H13 high-efficiency filter screen on the outdoor air inlet mechanism can effectively filter the outdoor air, the first G02 primary filter screen can effectively filter mosquitoes, gravels and catkins in the outdoor air, the first G3 primary filter screen can effectively filter large-diameter particles in the outdoor air, the first M5 intermediate filter screen can effectively filter particles, micro-dust or pollen above PM2.5 in the outdoor air, the first H13 high-efficiency filter screen can effectively purify fine pollutants in the outdoor air, the first ultraviolet lamp can sterilize and disinfect the filtered outdoor air, the condition that the indoor environment is polluted because the pollutants and bacteria in the outdoor air are conveyed to the indoor is avoided, through the arrangement of the indoor air inlet mechanism, the second G02 primary filter screen, the second G3 primary filter screen, the second M5 intermediate filter screen, the RCD two-in-one filter screen and the second H13 high-efficiency filter screen on the indoor air inlet mechanism can effectively filter the indoor air, second G02 just imitates the filter screen can be effectual mosquito in the room air, hair and cotton fibre filter, second G3 just imitates the filter screen and can be effectual filters the major diameter granule in the room air, the second M5 is well imitated the filter screen and can be effectual particulate matter or micronic dust more than PM2.5 in the room air filter, the fine pollutant in the high-efficient filter screen of second H13 can effectual purification room air, two unification filter screens of RCD can be effectual formaldehyde in the decomposition room air, sustainable volatile harmful gas such as benzene, the disinfection of disinfecting is carried out to the room air after filtering to the second ultraviolet lamp, pollutant and bacterium in the room air have been avoided is discharged outdoor and lead to the outdoor environment to receive the condition emergence of pollution.

(2) According to the utility model, through the arrangement of the first U-shaped mounting plate on the outdoor air inlet mechanism and the second U-shaped mounting plate on the indoor air inlet mechanism, because the outer walls of the top end and the bottom end of the first G02 primary filter screen, the first G3 primary filter screen, the first M5 intermediate filter screen and the first H13 high-efficiency filter screen are in clearance connection with the groove walls of the U-shaped grooves on the first U-shaped mounting plate, the outer walls of the top end and the bottom end of the second G02 primary filter screen, the second G3 primary filter screen, the second M5 intermediate filter screen, the RCD two-in-one filter screen and the second H13 high-efficiency filter screen are in clearance connection with the groove walls of the U-shaped grooves on the second U-shaped mounting plate, thereby made things convenient for the user to change or clear up first G02 is first imitated the filter screen, first G3 is first imitated the filter screen, first M5 is well imitated the filter screen, first H13 high efficiency filter screen, second G02 is first imitated the filter screen, second G3 is first imitated the filter screen, second M5 is well imitated the filter screen, two unification filters of RCD and the high efficiency filter screen of second H13.

(3) According to the utility model, through the arrangement of the first rainproof louver and the second rainproof louver, the first rainproof louver can prevent outdoor rainwater from entering the first box body to cause the damage of the air supply fan, and the second rainproof louver can prevent outdoor rainwater from entering the shell body to cause the damage of the high-efficiency heat exchanger, so that the practicability is strong.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the outdoor air intake mechanism of the present invention;

FIG. 3 is a front view of the outdoor air intake mechanism of the present invention;

FIG. 4 is a schematic structural diagram of an indoor air intake mechanism according to the present invention;

FIG. 5 is a front view of the indoor air intake mechanism of the present invention;

fig. 6 is a schematic structural diagram of the first U-shaped mounting plate and the second U-shaped mounting plate according to the present invention.

In the figure: 1. an outdoor air inlet mechanism; 101. a first U-shaped mounting plate; 102. a second rain-proof shutter; 103. a first G02 primary screen; 104. a first G3 primary screen; 105. a first M5 medium effect screen; 106. a first case; 107. a first H13 high efficiency screen; 108. an air supply fan; 109. a first ultraviolet lamp; 110. a first fixing plate; 111. a first fixing hole; 112. a second air outlet; 113. a first sealing door; 114. a first safety lock; 2. a first air inlet; 3. a housing; 4. a first separator; 5. a high efficiency heat exchanger; 6. a second separator; 7. a second air inlet; 8. an indoor air inlet mechanism; 801. a second U-shaped mounting plate; 802. a third air inlet; 803. a second G02 primary screen; 804. a second G3 primary screen; 805. a second M5 medium effect screen; 806. an RCD two-in-one filter screen; 807. a second case; 808. a second ultraviolet lamp; 809. an exhaust fan; 810. a second H13 high efficiency screen; 811. a second fixing plate; 812. a second fixing hole; 813. a third air outlet; 814. a second sealing door; 815. a second safety lock; 9. a first rain-proof shutter; 10. the first air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, an embodiment of the present invention is shown: an air filtering structure for an air exchanging opening of a new fan comprises a shell 3, an outdoor air inlet mechanism 1 and an indoor air inlet mechanism 8 are respectively installed above the outer walls of two sides of the shell 3, the outdoor air inlet mechanism 1 comprises a first U-shaped installation plate 101, a second rainproof shutter 102, a first G02 primary filter screen 103, a first G3 primary filter screen 104, a first M5 primary filter screen 105, a first box 106, a first H13 efficient filter screen 107, an air supply fan 108, a first ultraviolet lamp 109, a first fixing plate 110, a first fixing hole 111, a second air outlet 112, a first sealing door 113 and a first safety lock 114, the first G02 primary filter screen 103, the first G3 primary filter screen 104, the first M5 primary filter screen 105, the first H13 efficient filter screen 107 and the air supply fan 108 are arranged on one side of the inside of the first box 106 from left to right, the first G02 primary filter screen 103, the first G3 primary filter screen 104, the first M5 primary filter screen 105, the first H13 efficient filter screen 107 and the first H13 are installed at the top ends of the U-shaped grooves 101, and the top and bottom outer walls of the first G02 primary filter screen 103, the first G3 primary filter screen 104, the first M5 intermediate filter screen 105 and the first H13 high-efficiency filter screen 107 are all connected with the slot wall clearance of the U-shaped slot on the first U-shaped mounting plate 101, the first U-shaped mounting plate 101 is installed at the top and bottom inside the first box 106, one side of the air supply fan 108 is provided with a first ultraviolet lamp 109, the first ultraviolet lamp 109 is installed at one side of the top and bottom inside the first box 106, the outer wall center position at one side of the first box 106 is provided with a second rainproof shutter 102, the outer wall center position at the other side of the first box 106 is provided with a second air outlet 112, the indoor air inlet mechanism 8 comprises a second U-shaped mounting plate 801, a third air inlet 802, a second G02 primary filter screen 803, a second G3 primary filter screen 804, a second M5 intermediate filter screen 805, an RCD secondary filter screen 806, a second box 808, a second ultraviolet lamp 107, a second H13 high-efficiency filter screen 107 and a third ultraviolet lamp 101, An exhaust fan 809, a second H13 high-efficiency filter screen 810, a second fixing plate 811, a second fixing hole 812, a third air outlet 813, a second sealing door 814 and a second safety lock 815, a second G02 primary filter screen 803, a second G3 primary filter screen 804, a second M5 intermediate filter screen 805, an RCD two-in-one filter screen 806, a second H13 high-efficiency filter screen 810 and an exhaust fan 809 are sequentially arranged in the second box body 807 from right to left, the top ends and the bottom ends of the second G02 primary filter screen 803, the second G3 primary filter screen 804, the second M5 intermediate filter screen 805, the RCD two-in-one filter screen 806 and the second H13 high-efficiency filter screen 810 are all installed in U-shaped grooves on the second U-shaped mounting plate 801, the top ends and the bottom ends of the second G02 primary filter screen 803, the second G3 primary filter screen 804, the second M5 intermediate filter screen 805, the RCD two-in-one filter screen 806 and the second H13 high-efficiency filter screen 810 are all connected with gaps between the U-shaped grooves on the wall of the second U-shaped mounting plate 801, the second U-shaped mounting plate 801 is mounted at the top end and the bottom end inside the second box 807, one side of the exhaust fan 809 is provided with a second ultraviolet lamp 808, the second ultraviolet lamp 808 is mounted at one side of the top end and the bottom end inside the second box 807, the central position of the outer wall at one side of the second box 807 is provided with a third air outlet 813, the central position of the outer wall at the other side of the second box 807 is provided with a third air inlet 802, the upper parts of the outer walls at two sides of the shell 3 are respectively provided with a first air inlet 2 and a second air inlet 7, the lower parts of the outer walls at two sides of the shell 3 are respectively provided with a first rainproof louver 9 and a first air outlet 10, the central position inside the shell 3 is provided with a high-efficiency heat exchanger 5, the top end and the bottom end of the high-efficiency heat exchanger 5 are respectively connected with the top end and the bottom end inside the shell 3 through a first partition plate 4, the two sides of the high-efficiency heat exchanger 5 are respectively connected with the inner walls at two sides of the shell 3 through a second partition plate 6, the first fixing plate 110 is installed on both the top end and the bottom end of the first box 106, the outer wall of the first fixing plate 110 is provided with a first fixing hole 111, the first fixing plate 110 on the outdoor air intake mechanism 1 is connected with the housing 3 through a fastening bolt, the front end surface of the first box 106 is provided with a first sealing door 113, one side of the front end surface of the first sealing door 113 is provided with a first safety lock 114, one side of the top end and the bottom end of the second box 807 is provided with a second fixing plate 811, the outer walls of the plurality of second fixing plates 811 are provided with a second fixing hole 812, the second fixing plate 811 on the indoor air intake mechanism 8 is connected with the housing 3 through a fastening bolt, the first air inlet 2 and the second air outlet 112 are communicated with each other, the second air inlet 7 and the third air outlet are communicated with each other, the horizontal center lines of the first air inlet 2, the second air outlet 112, the second air inlet 7 and the third air outlet 813 are coincident with each other, a second sealing door 814 is disposed on the front end surface of the second box 807, and a second safety lock 815 is disposed on one side of the front end surface of the second sealing door 814.

The working principle is as follows: when the outdoor air filtering device is used, an external power supply is connected, the outdoor air filtering device is started, the air supply fan 108 conveys outdoor air to the inside of the shell 3, the outdoor air is subjected to heat exchange with indoor air through the efficient heat exchanger 5 and then is discharged into the indoor from the first air outlet 10, the indoor air is conveyed to the inside of the shell 3 by the exhaust fan 809, the indoor air is subjected to heat exchange with the outdoor air through the efficient heat exchanger 5 and then is discharged out of the outdoor from the first rainproof louver 9, in the working process, the first G02 primary filter screen 103, the first G3 primary filter screen 104, the first M5 primary filter screen 105 and the first H13 efficient filter screen 107 on the outdoor air inlet mechanism 1 can effectively filter the outdoor air, the first G02 primary filter screen 103 can effectively filter mosquitoes, gravels and catkins in the outdoor air, the first G3 primary filter screen 104 can effectively filter large-diameter particles in the outdoor air, the first M5 primary filter screen 105 can effectively filter PM particles more than 2.5 in the outdoor air, Tiny dust or pollen is filtered, the first H13 high-efficiency filter screen 107 can effectively purify fine pollutants in outdoor air, the first ultraviolet lamp 109 can sterilize and disinfect the filtered outdoor air, the situation that the indoor environment is polluted because the pollutants and bacteria in the outdoor air are conveyed indoors is avoided, through the arrangement of the indoor air inlet mechanism 8, the second G02 primary filter screen 803, the second G3 primary filter screen 804, the second M5 intermediate filter screen 805, the RCD two-in-one filter screen 806 and the second H13 high-efficiency filter screen 810 on the indoor air inlet mechanism 8 can effectively filter the indoor air, the second G02 primary filter screen 803 can effectively filter mosquitoes, hairs and cotton wool in the indoor air, the second G3 primary filter screen 804 can effectively filter large-diameter particles in the indoor air, the second M5 intermediate filter screen 805 can effectively filter particles or tiny dust more than PM2.5 in the indoor air, the second H13 high-efficiency filter screen 810 can effectively purify fine pollutants in indoor air, the RCD two-in-one filter screen 806 can effectively decompose formaldehyde, benzene and other sustainable volatile harmful gases in the indoor air, the second ultraviolet lamp 808 can sterilize and disinfect the filtered indoor air, the situation that the outdoor environment is polluted due to the fact that pollutants and bacteria in the indoor air are discharged to the outdoor is avoided, through the arrangement of the first U-shaped mounting plate 101 on the outdoor air inlet mechanism 1 and the second U-shaped mounting plate 801 on the indoor air inlet mechanism 8, the first G02 primary filter screen 103, the first G3 primary filter screen 104, the first M5 primary filter screen 105 and the outer walls of the top end and the bottom end of the first H13 high-efficiency filter screen 107 are connected with the groove wall gaps of the U-shaped groove on the first U-shaped mounting plate 101, and the second G02 primary filter screen 803, the second G3 primary filter screen 804, the second M5 primary filter screen 805, the first U-shaped groove and the second U-shaped groove on the first U-shaped groove 101 are connected in a clearance manner, The top and the bottom outer wall of two unification filter screens 806 of RCD and the high-efficient filter screen 810 of second H13 all with the cell wall clearance connection in the U type groove on the second U type mounting panel 801 to made things convenient for the user to just imitate filter screen 103 to first G02, first G3 just imitates filter screen 104, imitate filter screen 105 in first M5, first H13 high-efficient filter screen 107, second G02 just imitates filter screen 803, second G3 just imitates filter screen 804, imitate filter screen 805 in second M5, two unification filter screens 806 of RCD and the high-efficient filter screen 810 of second H13 change or clear up, the practicality is strong.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a new fan trades wind gap air filter structure, includes casing (3), its characterized in that: an outdoor air inlet mechanism (1) and an indoor air inlet mechanism (8) are respectively installed above outer walls of two sides of the shell (3), the outdoor air inlet mechanism (1) comprises a first U-shaped installation plate (101), a second rainproof louver (102), a first G02 primary filter screen (103), a first G3 primary filter screen (104), a first M5 intermediate filter screen (105), a first box body (106), a first H13 efficient filter screen (107), an air supply fan (108), a first ultraviolet lamp (109), a first fixing plate (110), a first fixing hole (111), a second air outlet (112), a first sealing door (113) and a first safety lock (114), a first G02 primary filter screen (103), a first G3 primary filter screen (104), a first M5 intermediate filter screen (105), a first H13 efficient filter screen (107) and an air supply fan (108) are arranged on one side of the inside of the first box body (106), the top ends and the bottom ends of the first G02 primary filter screen (103), the first G3 primary filter screen (104), the first M5 intermediate filter screen (105) and the first H13 high-efficiency filter screen (107) are all arranged in a U-shaped groove on a first U-shaped mounting plate (101), the top ends and the bottom ends of the first G02 primary filter screen (103), the first G3 primary filter screen (104), the first M5 intermediate filter screen (105) and the first H13 high-efficiency filter screen (107) are all in clearance connection with the groove walls of the U-shaped groove on the first U-shaped mounting plate (101), the first U-shaped mounting plate (101) is arranged at the top end and the bottom end inside the first box body (106), a first ultraviolet lamp (109) is arranged at one side of the top end and the bottom end inside the first box body (106), a second rainproof shutter (102) is arranged at the center position of the outer wall at one side of the first box body (106), a second air outlet (112) is formed in the center of the outer wall of the other side of the first box body (106), the indoor air inlet mechanism (8) comprises a second U-shaped mounting plate (801), a third air inlet (802), a second G02 primary filter screen (803), a second G3 primary filter screen (804), a second M5 intermediate filter screen (805), an RCD two-in-one filter screen (806), a second box body (807), a second ultraviolet lamp (808), an exhaust fan (809), a second H13 high-efficiency filter screen (810), a second fixing plate (811), a second fixing hole (812), a third air outlet (813), a second sealing door (814) and a second safety lock (815), the second G02 primary filter screen (803), a second G3 primary filter screen (804), a second M5 intermediate filter screen (805), an RCD two-in-one filter screen (806), a second H13 high-efficiency filter screen (810) and a second safety lock (809) are sequentially arranged in the second box body (807) from right to left, the top ends and the bottom ends of a second G02 primary filter screen (803), a second G3 primary filter screen (804), a second M5 intermediate filter screen (805), an RCD two-in-one filter screen (806) and a second H13 efficient filter screen (810) are all arranged in a U-shaped groove on a second U-shaped mounting plate (801), the top ends and the bottom ends of the second G02 primary filter screen (803), the second G3 primary filter screen (804), the second M5 intermediate filter screen (805), the RCD two-in-one filter screen (806) and the second H13 efficient filter screen (810) are all in clearance connection with the groove walls of the U-shaped groove on the second U-shaped mounting plate (801), the second U-shaped mounting plate (801) is arranged at the top end and the bottom end inside a second box body (807), one side of the exhaust fan (809) is provided with a second ultraviolet lamp (808), and the second ultraviolet lamp (808) is arranged at one side of the top end and the bottom end inside the second box body (807), third air outlet (813) have been seted up to one side outer wall central point of second box (807), third air inlet (802) have been seted up to the opposite side outer wall central point of second box (807), first air intake (2) and second air intake (7) have been seted up respectively to the both sides outer wall top of casing (3), the both sides outer wall below of casing (3) is provided with first rain-proof shutter (9) and first air outlet (10) respectively, the inside central point of casing (3) puts and is provided with high-efficient heat exchanger (5), the top and the bottom of high-efficient heat exchanger (5) all are connected with the inside top and the bottom of casing (3) respectively through first baffle (4), the both sides of high-efficient heat exchanger (5) all are connected with the both sides inner wall of casing (3) respectively through second baffle (6).

2. The new fan air exchange opening air filtering structure of claim 1, characterized in that: first fixed plate (110) are all installed to the top and bottom one side of first box (106), first fixed orifices (111) have been seted up on the outer wall of first fixed plate (110), first fixed plate (110) on outdoor air inlet mechanism (1) are connected with casing (3) through fastening bolt.

3. The new fan air exchange opening air filtering structure of claim 1, characterized in that: a first sealing door (113) is arranged on the front end face of the first box body (106), and a first safety lock (114) is arranged on one side of the front end face of the first sealing door (113).

4. The new fan air exchange opening air filtering structure of claim 1, characterized in that: second fixed plate (811) are all installed to the top and bottom one side of second box (807), have seted up second fixed orifices (812) on the outer wall of several second fixed plate (811), second fixed plate (811) on indoor air inlet mechanism (8) are connected with casing (3) through fastening bolt.

5. The new fan air exchange opening air filtering structure of claim 1, characterized in that: the first air inlet (2) and the second air outlet (112) are communicated with each other, the second air inlet (7) and the third air outlet (813) are communicated with each other, and the horizontal central lines of the first air inlet (2), the second air outlet (112), the second air inlet (7) and the third air outlet (813) are overlapped with each other.

6. The new fan air exchange opening air filtering structure of claim 1, characterized in that: a second sealing door (814) is arranged on the front end face of the second box body (807), and a second safety lock (815) is arranged on one side of the front end face of the second sealing door (814).

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