CN219120696U

CN219120696U - New fan with check valve

Info

Publication number: CN219120696U
Application number: CN202223361417.XU
Authority: CN
Inventors: 贾圣军; 石纯
Original assignee: Tianjin Fifth Season Environment Science And Technology Co ltd
Current assignee: Tianjin Fifth Season Environment Science And Technology Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-06-02
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a fresh air fan with a check valve, which comprises an openable buckle cover and a shell, wherein an inner cavity of the shell is provided with an induced air component for introducing outdoor fresh air, an exhaust component for exhausting indoor old air and a heat exchange core body for heat transfer, and one side of the shell, which is far away from the buckle cover, is provided with the check valve for preventing an exhaust air duct from back flowing; through the arrangement of the check valve, when the new fan with the check valve is in a starting state, indoor air is blown out from the air exhaust outlet through the air exhaust air duct, so that the silica gel film is blown up by the air at the inner side, and the indoor air can be normally discharged outdoors; when the fresh air machine with the check valve is in the shutdown state, after outdoor air blows to the check valve, the silica gel film is closed inwards, and the silica gel film is in a closed state by utilizing the supporting net, so that outdoor air is prevented from entering a room through the air exhaust outlet in the shutdown state, the phenomenon that the outdoor air flows backward to the room through the air exhaust air duct can be prevented, and the use experience of a user is improved.

Description

New fan with check valve

Technical Field

The utility model relates to the technical field of fresh air machines, in particular to a fresh air machine with a check valve.

Background

The fresh air blower is an effective air purifying device, which can circulate indoor air, on one hand, the indoor polluted air is discharged out of the room, and on the other hand, the outdoor fresh air is input into the room after the measures of sterilization, disinfection, filtration and the like, so that the room is fresh and clean at all times.

The current new fan is short in exhaust air duct, and the internal blocking objects of the exhaust air duct are less, so that when the new fan is in a shutdown state, outdoor air is easy to flow back to the room through the exhaust air duct, and bad use experience is caused for a user.

Disclosure of Invention

The utility model aims to provide a novel fan with a check valve, which can prevent outdoor air from flowing backward to the room through an exhaust air duct through the cooperation of an exhaust assembly and the check valve, and improves the use experience of users.

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

new fan with check valve includes:

the device comprises an openable buckle cover and a shell, wherein an inner cavity of the shell is provided with an induced air component for introducing outdoor fresh air, an exhaust component for exhausting indoor old air and a heat exchange core body for heat transfer, and one side of the shell, which is far away from the buckle cover, is provided with a check valve for preventing air exhaust air channels from flowing backwards;

the check valve comprises a silica gel film arranged on a casing, a plurality of annular equidistant openings are formed in the surface of the silica gel film by taking the center of the silica gel film as the axis, two fixing rings are arranged on two sides of the silica gel film, the silica gel film and the two fixing rings are connected in series through screws, the screws are connected with the casing in a threaded manner, a supporting net is fixedly connected with the inner cavity of the fixing ring in contact with the surface of the casing, and one side of the surface of the silica gel film is attached to the surface of the supporting net.

As the preferable technical scheme, induced air subassembly is including seting up in the new trend entry of casing one side of keeping away from the buckle closure, new trend fan is installed on the upper portion of casing inner chamber, the top of casing is equipped with the new trend export, form induced air wind channel between new trend entry, new trend fan and the new trend export, install the PTC heater that is used for keeping indoor constant temperature in the induced air channel.

As the preferable technical scheme, the exhaust assembly comprises an exhaust inlet arranged on one side of the surface of the shell, an exhaust fan is arranged on the lower part of the inner cavity of the shell, an exhaust outlet matched with the silica gel film is arranged on the surface of the shell, and an exhaust air channel is formed among the exhaust inlet, the exhaust fan and the exhaust outlet.

As the preferable technical scheme, the heat exchange core body is arranged at the junction of the induced air duct and the exhaust air duct, a fresh air primary filter screen is arranged between the heat exchange core body and the fresh air inlet, and an exhaust primary filter screen is arranged between the heat exchange core body and the exhaust air inlet.

As the preferable technical scheme, a high-efficiency filter screen and a negative ion filter screen are sequentially arranged in an induced air channel between the fresh air fan and the fresh air outlet from bottom to top.

As an optimal technical scheme, a sensor group is arranged in the exhaust air duct.

As an optimal technical scheme, the buckle cover and the shell are detachably connected by adopting screws.

As the preferable technical scheme, electric controller is installed to one side of casing inner chamber, new trend fan, PTC heater, exhaust fan and heat exchange core are controlled by electric controller respectively, the signal output part of sensor group is connected with electric controller's signal input part, install the control panel with electric controller electric connection on the buckle closure.

The utility model has at least the following beneficial effects:

the novel air conditioner has the beneficial effects that through the arrangement of the check valve, when the novel air conditioner with the check valve is in a starting state, indoor air is blown out from the air exhaust outlet through the air exhaust air duct, so that the silica gel film is blown up by the air on the inner side, and the indoor air can be normally discharged to the outside; when the fresh air machine with the check valve is in the shutdown state, after outdoor air blows to the check valve, the silica gel film is closed inwards, and the silica gel film is in a closed state by utilizing the supporting net, so that outdoor air is prevented from entering a room through the air exhaust outlet in the shutdown state, the phenomenon that the outdoor air flows backward to the room through the air exhaust air duct can be prevented, and the use experience of a user is improved.

Drawings

FIG. 1 is a schematic diagram of the front view of a fresh air machine with check valve according to the present utility model;

FIG. 2 is a schematic side view of a new wind turbine with check valve according to the present utility model;

FIG. 3 is a schematic cross-sectional side view of the new wind turbine with check valve of the present utility model;

FIG. 4 is a schematic perspective view showing a start-up state of the fresh air machine with a check valve according to the present utility model;

FIG. 5 is a schematic perspective view showing a shut-down state of the fresh air machine with a check valve according to the present utility model;

FIG. 6 is a schematic diagram of an exploded view of the check valve of the new wind turbine with check valve of the present utility model;

FIG. 7 is a schematic diagram showing a shut-down state of a check valve of the new wind turbine with check valve according to the present utility model;

fig. 8 is a schematic diagram showing the start-up state structure of the check valve of the new fan with the check valve.

In the figure: 1. a buckle cover; 2. a housing; 3. an induced draft assembly; 301. a fresh air inlet; 302. fresh air blower; 303. a fresh air outlet; 304. a PTC heater; 305. fresh air primary filter screen; 306. an efficient filter screen; 307. a negative ion filter screen; 4. an exhaust assembly; 401. an exhaust inlet; 402. an exhaust fan; 403. an exhaust outlet; 404. an exhaust primary filter screen; 405. a sensor group; 5. a heat exchange core; 6. a check valve; 601. a silicone film; 602. an opening; 603. a fixing ring; 604. a support net; 7. and a control panel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-8, an embodiment of the present utility model provides a fresh air fan with a check valve, comprising: the novel air conditioner comprises an openable buckle cover 1, a machine shell 2, an air inducing component 3 for introducing outdoor fresh air, an air exhausting component 4 for exhausting indoor old air, a heat exchange core body 5 for heat transfer and a check valve 6 for preventing air exhausting air channels from back flowing, wherein the air inducing component 3, the air exhausting component 4 and the heat exchange core body 5 are all arranged in the inner cavity of the machine shell 2, and the check valve 6 is arranged on one side, far away from the buckle cover 1, of the machine shell 2; the check valve 6 is including locating the silica gel membrane 601 on the casing 2, a plurality of annular equidistance openings 602 that distribute have been seted up to the surface of silica gel membrane 601 with the centre of a circle of silica gel membrane 601 as the axle center, the both sides of silica gel membrane 601 all are equipped with a retainer plate 603, establish ties together through the screw between silica gel membrane 601 and the two retainer plates 603, threaded connection between screw and the casing 2, the inner chamber fixedly connected with support net 604 of retainer plate 603 with casing 2 surface contact, one side and the surface laminating of support net 604 of silica gel membrane 601 surface.

Wherein, induced air subassembly 3 is including setting up the new trend entry 301 of keeping away from buckle closure 1 one side in casing 2, and new trend fan 302 is installed on the upper portion of casing 2 inner chamber, and the top of casing 2 is equipped with new trend export 303, forms the induced air wind channel between new trend entry 301, new trend fan 302 and the new trend export 303, installs the PTC heater 304 that is used for keeping indoor constant temperature in the induced air wind channel.

Wherein, the exhaust assembly 4 is including seting up in the inlet 401 of airing exhaust of casing 2 surface one side, and fan 402 of airing exhaust is installed to the lower part of casing 2 inner chamber, and the surface of casing 2 has been setted up and has been had the export 403 of airing exhaust with silica gel membrane 601 looks adaptation, and the export 403 of airing exhaust is at the same side of casing 2 surface with new trend entry 301, forms the wind channel of airing exhaust between inlet 401 of airing exhaust, fan 402 of airing exhaust and the export 403 of airing exhaust.

Wherein, the heat exchange core body 5 is arranged at the junction of the induced air duct and the exhaust air duct, a fresh air primary filter screen 305 is arranged between the heat exchange core body 5 and the fresh air inlet 301, and an exhaust primary filter screen 404 is arranged between the heat exchange core body 5 and the exhaust air inlet 401. The fresh air and the old air can be subjected to primary filtration respectively by utilizing the fresh air primary filter screen 305 and the exhaust primary filter screen 404.

Wherein, high-efficiency filter screen 306 and anion filter screen 307 are installed in proper order from bottom to top in the induced air passageway between fresh air fan 302 and fresh air outlet 303. The high-efficiency filter screen 306 and the anion filter screen 307 are used in combination, so that the fresh air introduced into the room can be filtered for the second time, and pollutants in the air are prevented from being introduced into the room.

Wherein, install sensor group 405 in the wind channel of airing exhaust, sensor group 405 includes temperature sensor, VOC content sensor, CO ₂ Content sensor and PM2.5 content sensor.

Wherein, adopt the screw to realize detachable connection between buckle closure 1 and the casing 2. The subsequent detachment of the buckle cover 1 and the machine shell 2 is convenient, and the overhaul operation is carried out on the electric elements in the machine shell 2.

Wherein, the electric controller is installed to one side of casing 2 inner chamber, and fresh air fan 302, PTC heater 304, exhaust fan 402 and heat exchange core 5 are controlled by the electric controller respectively, and the signal output part of sensor group 405 is connected with the signal input part of electric controller, installs on buckle closure 1 with electric controller electric connection's control panel 7.

The working principle of the utility model is as follows: wall holes are formed in the positions, corresponding to the fresh air inlet 301 and the exhaust outlet 403 of the fresh air fan with the check valve, of the wall body, a wall-penetrating hood is arranged in each hole, and then the wall-mounted fresh air fan is arranged at the wall body at an adaptive height; in the on state, indoor air enters the interior of the machine shell 2 through the exhaust inlet 401, sequentially passes through the exhaust primary filter screen 404 and the heat exchange core 5, then is discharged to the outside from the exhaust outlet 403 through the exhaust fan 402, when indoor air passes through the check valve 6, the silica gel film 601 is blown up by air in the exhaust air duct (as shown in fig. 4 and 8), so that the indoor air can be normally discharged to the outside, while outdoor air enters the interior of the machine shell 2 through the fresh air inlet 301, sequentially passes through the fresh air primary filter screen 305, the heat exchange core 5, the high-efficiency filter screen 306 and the negative ion filter screen 307, and fresh air is sent into the room from the fresh air outlet 303 through the PTC heater 304 through the fresh air fan 302; when in the shutdown state, after the outdoor air blows to the check valve 6, the silica gel film 601 is closed inwards, and the silica gel film 601 is in a closed state (as shown in fig. 5 and 7) by utilizing the supporting net 604, so that the phenomenon that the outdoor air enters the room through the exhaust outlet 403 in the shutdown state can be prevented, and the outdoor air flows backward to the room through the exhaust air duct can be prevented, and the user experience is improved.

None of the utility models are related to the same or are capable of being practiced in the prior art. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. New fan with check valve, its characterized in that includes:

the novel energy-saving air conditioner comprises an openable buckle cover (1) and a machine shell (2), wherein an inner cavity of the machine shell (2) is provided with an air inducing component (3) for introducing outdoor fresh air, an air exhausting component (4) for exhausting indoor old air and a heat exchange core body (5) for heat transfer, and one side of the machine shell (2) away from the buckle cover (1) is provided with a check valve (6) for preventing air exhausting air channels from flowing backwards;

the check valve (6) comprises a silica gel film (601) arranged on a casing (2), a plurality of annular equally-distributed openings (602) are formed in the surface of the silica gel film (601) by taking the center of the silica gel film (601) as the axis, two fixing rings (603) are arranged on two sides of the silica gel film (601), the silica gel film (601) and the two fixing rings (603) are connected in series through screws, the screws are connected with the casing (2) in a threaded mode, a supporting net (604) is fixedly connected with the inner cavity of the fixing ring (603) in contact with the surface of the casing (2), and one side of the surface of the silica gel film (601) is attached to the surface of the supporting net (604).

2. The fresh air machine with check valve according to claim 1, wherein: the air inducing assembly (3) comprises a fresh air inlet (301) which is formed in one side, far away from the buckle cover (1), of the casing (2), a fresh air fan (302) is arranged on the upper portion of an inner cavity of the casing (2), a fresh air outlet (303) is formed in the top of the casing (2), an air inducing air channel is formed among the fresh air inlet (301), the fresh air fan (302) and the fresh air outlet (303), and a PTC heater (304) used for keeping indoor constant temperature is arranged in the air inducing air channel.

3. The fresh air machine with check valve according to claim 2, wherein: the exhaust assembly (4) comprises an exhaust inlet (401) formed in one side of the surface of the shell (2), an exhaust fan (402) is mounted at the lower part of the inner cavity of the shell (2), an exhaust outlet (403) matched with the silica gel film (601) is formed in the surface of the shell (2), and an exhaust air channel is formed among the exhaust inlet (401), the exhaust fan (402) and the exhaust outlet (403).

4. A fresh air machine with a check valve according to claim 3, wherein: the air conditioner is characterized in that the heat exchange core body (5) is arranged at the junction of the induced air duct and the exhaust air duct, a fresh air primary filter screen (305) is arranged between the heat exchange core body (5) and the fresh air inlet (301), and an exhaust primary filter screen (404) is arranged between the heat exchange core body (5) and the exhaust air inlet (401).

5. The fresh air machine with check valve according to claim 2, wherein: and a high-efficiency filter screen (306) and a negative ion filter screen (307) are sequentially arranged in the induced air channel between the fresh air fan (302) and the fresh air outlet (303) from bottom to top.

6. A fresh air machine with a check valve according to claim 3, wherein: a sensor group (405) is arranged in the exhaust air duct.

7. The fresh air machine with check valve according to claim 1, wherein: the buckling cover (1) is detachably connected with the machine shell (2) through screws.

8. The fresh air machine with check valve according to claim 6, wherein: an electric controller is arranged on one side of the inner cavity of the shell (2), a fresh air fan (302), a PTC heater (304), an exhaust fan (402) and a heat exchange core body (5) are respectively controlled by the electric controller, a signal output end of a sensor group (405) is connected with a signal input end of the electric controller, and a control panel (7) electrically connected with the electric controller is arranged on the buckle cover (1).