CN205980157U - New fan with air purification function - Google Patents

Abstract

A fresh air blower with air purification function relates to the technical field of air purification. A first purifier is arranged in the fresh air channel of the fresh air blower. The first purifier includes primary-effect filter screens arranged in sequence from the fresh air inlet to the fresh air outlet. Openable medium-efficiency filter and openable high-efficiency filter. The fresh air is inhaled by the fresh air inlet. The first purifier selects different filter combinations formed by the primary filter, medium-efficiency filter and high-efficiency filter to filter the fresh air according to the different quality levels of the fresh air. The exit is sent indoors. At the same time, the indoor dirty air is inhaled by the dirty air inlet, passes through the dirty air channel, and finally discharged to the outside by the dirty air outlet to realize air circulation. The fresh fan with air purification function of the utility model can select and switch filter screens with different efficiency to filter the air according to the outdoor environment and the different grades of the set air, selectively intelligently filter, and is energy-saving and efficient.

Description

Fresh air fan with air purification function

technical field

The utility model relates to the technical field of air purification, in particular to a fresh fan with air purification function.

Background technique

The fresh air fan is an effective air purification device, which can circulate the indoor air and the outdoor air: on the one hand, the indoor dirty air is discharged outside, on the other hand, the outdoor fresh air is directly input into the room, or the outdoor fresh air The air is sterilized, filtered and other measures before being input into the room to ensure that there is fresh and clean air in the room at all times. The fresh air fan uses the patented technology of fresh air convection to realize indoor air convection through independent air supply and induced air, thereby maximizing indoor air replacement. In addition, the built-in multi-functional purification system of the fresh air fan can ensure the cleanness and health of the air entering the room . Fresh air fans are mainly divided into two types: exhaust air fresh air fans and supply air fresh air fans. They can be installed in most indoor environments. They are easy to install and comfortable to use. Fresh air fans have become a healthy companion for home life.

Existing fresh air fans have similar structures, and generally have a built-in purifier for filtering the fresh air sucked into the fresh air machine from the outside, and then pass it into the room. Most of the existing filters are single-layer primary-effect filter screens, which can only perform preliminary filtration of the air and filter out dust particles with large particle sizes in the air. When the outdoor air quality is poor, it contains some dust with small particle sizes. When the particles are collected, the filter will not completely filter the air, resulting in the poor quality of the air entering the room, which will affect the health of the human body indoors. In order to ensure the filtering effect of the filter on the air, some filters also include high-efficiency filters. However, when the fresh air fan is running, it needs to use a high-power motor, which consumes a lot of energy to make the air pass through the high-efficiency filter. When the outdoor air quality is good, The air still has to pass through the high-efficiency filter, resulting in loud motor operation noise and serious waste of energy.

Utility model content

The purpose of the utility model is to provide a fresh air fan with air purification function, which can select and switch filters with different efficiency to filter the air according to different levels of outdoor air, selectively intelligently filter, energy-saving and high-efficiency.

Embodiments of the utility model are achieved in that:

A fresh air fan with air purification function, which includes a shell, and a fresh air channel and a dirty air channel that are located in the shell and are not connected to each other. One side of the shell is provided with a fresh air inlet and a dirty air outlet. There is a fresh air outlet and a dirty air inlet on one side, the fresh air inlet and the fresh air outlet are connected through the fresh air channel, the dirty air inlet and the dirty air outlet are connected through the dirty air channel, and a first purifier is arranged in the fresh air channel, and the first purifier consists of The primary effect filter, the openable medium effect filter and the openable high efficiency filter are arranged in sequence from the fresh air inlet to the fresh air outlet.

In a preferred embodiment of the present invention, the above-mentioned first purifier is arranged at one end of the fresh air passage adjacent to the fresh air inlet.

In a preferred embodiment of the present invention, the fresh air fan also includes an integrated circuit, the medium-efficiency filter is connected with a first motor that controls its opening and closing, and the high-efficiency filter is connected with a second motor that controls its opening and closing. The motor and the second motor are respectively connected to the integrated circuit.

In a preferred embodiment of the present invention, an air quality sensor is provided inside the fresh air inlet, and the air quality sensor is connected to an integrated circuit.

In a preferred embodiment of the present invention, the above-mentioned primary effect filter screen is fixed in the fresh air passage, the opposite ends of the medium-effect filter screen are pivotally connected with the inner wall of the fresh air passage, and the opposite ends of the high-efficiency filter screen are connected with the inner wall of the fresh air passage. Pivot.

In a preferred embodiment of the present invention, a second purifier is provided in one end of the above-mentioned dirty air channel adjacent to the dirty air inlet.

In a preferred embodiment of the present invention, the above-mentioned dirty air outlet is located above the fresh air inlet, and the fresh air outlet is located above the dirty air inlet.

In a preferred embodiment of the present invention, the fresh air fan further includes a heat exchange core located in the housing, and both the fresh air channel and the dirty air channel pass through the heat exchange core.

In a preferred embodiment of the present invention, the fresh air channel is provided with a fresh air variable frequency motor at one end adjacent to the fresh air inlet; the dirty air channel is provided with a dirty air variable frequency motor at one end adjacent to the dirty air outlet.

In a preferred embodiment of the utility model, the fresh air outlet is provided with a first grille, and the dirty air inlet is provided with a second grille.

The beneficial effects of the utility model embodiment are:

The fresh air channel of the embodiment of the utility model is provided with a first purifier, and the first purifier includes a primary-effect filter screen arranged in sequence from the fresh air inlet to the fresh air outlet, an openable medium-efficiency filter screen and an openable and closed high-efficiency filter screen. network. The fresh air is inhaled by the fresh air inlet. The first purifier selects different filter combinations formed by the primary filter, the medium-efficiency filter and the high-efficiency filter to filter the fresh air according to the quality level of the fresh air. The exit is sent indoors. At the same time, the indoor dirty air is inhaled by the dirty air inlet, passes through the dirty air channel, and finally discharged to the outside by the dirty air outlet to realize air circulation. The embodiment of the utility model can select and switch filter screens with different functions to filter the air according to the outdoor environment and the different grades of the set air, selectively and intelligently filter, energy-saving and high-efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is a schematic structural view of a new fan with air purification function provided by the embodiment of the present invention;

Fig. 2 is a structural schematic view of another viewing angle of the fresh air blower shown in Fig. 1 .

In the picture:

100-Fresh air fan; 110-Shell; 120-Fresh air passage; 121-Fresh air inlet; 122-Fresh air outlet; 130-Sewage air passage; -fresh air frequency conversion motor; 152-pollution air frequency conversion motor; 161-first grid; 162-second grid; 170-integrated circuit; 171-first motor; 172-second motor; 173-air quality sensor; 180 - the first purifier; 181 - the primary filter; 182 - the medium filter; 183 - the high efficiency filter; 190 - the second purifier.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" etc. is based on the orientation or positional relationship shown in the drawings, or is The usual orientation or positional relationship of the utility model product in use is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operation, and therefore cannot be construed as a limitation of the utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "setting", "connecting" and "connecting" should be understood in a broad sense, for example, it can be a fixed connection or a A detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Please refer to Fig. 1 and Fig. 2, the present embodiment provides a fresh air fan 100 with air purification function, which includes a housing 110, and a fresh air channel 120 and a dirty air channel that are located in the housing 110 and are not connected to each other. 130, one side of the housing 110 is provided with a fresh air inlet 121 and a dirty air outlet 132, and the other side of the housing 110 is provided with a fresh air outlet 122 and a dirty air inlet 131, and the fresh air inlet 121 and the fresh air outlet 122 are communicated through the fresh air passage 120, The dirty air inlet 131 communicates with the dirty air outlet 132 through the dirty air channel 130 . One end of the fresh air channel 120 adjacent to the fresh air inlet 121 is provided with a fresh air variable frequency motor 151 for sucking fresh outdoor air (fresh air) into the fresh air channel 120; one end of the dirty air channel 130 adjacent to the dirty air outlet 132 is provided with a dirty air variable frequency motor 152 , used to suck indoor dirty air (dirty air) into the dirty air channel 130 . After the fresh air blower 100 is installed on the wall, the fresh air inlet 121 and the dirty air outlet 132 are located on the side of the wall adjacent to the outdoor and communicate with the outdoor, and the fresh air outlet 122 and the dirty air inlet 131 are located on the side of the wall adjacent to the indoor and communicated with the indoor . The outdoor fresh air is inhaled by the fresh air inlet 121, passes through the fresh air channel 120, and finally sent into the room by the fresh air outlet 122, and the indoor dirty air is sucked in by the dirty air inlet 131, passes through the dirty air channel 130, and finally is discharged to the outside by the dirty air outlet 132, realizing air pollution. Circulation to ensure fresh air in the room all the time.

In this embodiment, the fresh air outlet 122 is provided with a first grille 161, which can prevent outdoor light objects from entering the room with the fresh air, and the dirty air inlet 131 is provided with a second grille 162, which can prevent indoor light objects from entering the room with the dirty air. discharge. At the same time, the first grille 161 and the second grille 162 can also ensure the aesthetics of the room after the fresh air blower 100 is installed. In order to prevent outdoor mosquitoes from entering the room through the fresh air inlet 121, the fresh air inlet 121 is equipped with an insect-proof net. At the same time, in order to prevent rainwater from entering the fresh air inlet 121 in windy and rainy weather, a weather cap is provided at the fresh air inlet 121 .

In this embodiment, the fresh air fan 100 further includes a heat exchange core 140 located in the housing 110 , and both the fresh air channel 120 and the dirty air channel 130 pass through the heat exchange core 140 . This is to make full use of the energy in the fresh air or polluted air. The fresh air channel 120, the polluted air channel 130 and the heat exchange core 140 together form a total heat exchanger. When the airflow passes through the heat exchange core 140, due to the temperature difference and steam partial pressure difference between the airflows on both sides of the airflow partition plate, the two airflows show heat and mass transfer phenomenon when passing through the partition plate, causing a total heat exchange process. During summer operation, fresh air obtains cooling capacity from indoor sewage air (indoor air-conditioning exhaust air processed by the air-conditioning system), which lowers the temperature and is dried by the sewage air at the same time, reducing the moisture content of fresh air; during winter operation, fresh air from indoor sewage The wind (indoor air-conditioning exhaust after being processed by the air-conditioning system) gains heat and the temperature rises. In this way, through the heat exchange process of the heat exchange core 140, the fresh air can recover energy from the polluted air.

In this embodiment, the fresh air outlet 122 is located above the dirty air inlet 131. Specifically, the fresh air outlet 122 is located on the top surface of the casing 110 to discharge fresh air toward the top of the room, and the dirty air inlet 131 is located on the bottom surface of the casing 110 to discharge the dirty air at the bottom of the room. The wind is sucked in so that the fresh air enters the top of the room from the fresh air outlet 122, then descends to the bottom of the room, and is discharged by the dirty air outlet 132 to ensure that the indoor air circulation is formed. In order to ensure that the fresh air channel 120 and the dirty air channel 130 are unobstructed, the fresh air channel 120 and the dirty air channel 130 are linear. At the same time, the fresh air channel 120 and the dirty air channel 130 intersect for heat exchange. The dirty air inlet 131 at one end of the dirty air channel 130, therefore, the dirty air outlet 132 at the other end of the dirty air channel 130 is located above the fresh air inlet 121 at the other end of the fresh air channel 120, specifically, the dirty air outlet 132 and the fresh air inlet 121 are located On the same side of the casing 110, and the distance between the two is as large as possible, to ensure that the discharged dirty air will not enter the room through the fresh air fan 100, and at the same time, the distance between the fresh air outlet 122 and the dirty air inlet 131 is also It is large enough to ensure a large range of indoor air circulation.

In this embodiment, the first purifier 180 is installed in the fresh air channel 120 to prevent the outdoor air quality from being too bad, and direct inhalation into the room will not improve the indoor air quality, but actually reduce the indoor air quality. The first purifier 180 is used to purify the fresh air and inhale it into the room after meeting the healthy air standard. In this embodiment, the first purifier 180 is installed at one end of the fresh air passage 120 adjacent to the fresh air inlet 121 , and first filters the inhaled fresh air to prevent dust particles in the fresh air from adhering to the fresh air passage 120 . Specifically, the first purifier 180 includes a primary filter 181 arranged in sequence from the fresh air inlet 121 to the fresh air outlet 122, an openable and closable medium-effect filter 182 and an openable and closable high-efficiency filter 183, and their installation structure is 1. The primary effect filter screen is fixed in the fresh air channel 120, the opposite ends of the medium effect filter screen 182 are pivotally connected with the inner wall of the fresh air channel 120 to realize rotation opening and closing, and the opposite ends of the high-efficiency filter screen 183 are pivoted with the inner wall of the fresh air channel 120 Connect to realize turning on and off. The primary filter 181 is mainly used to filter dust particles above 5 μm, the medium filter 182 is mainly used to filter dust particles of 0.3-5 μm, and the high-efficiency filter 183 is mainly used to filter dust particles of 0.1-0.3 μm. High-efficiency filter screen 183 can select ULPA filter screen or HEPA filter screen for use. ULPA (Ultra Low Penetration AirFilter), the full name of ultra-high efficiency air filter, or ultra-low penetration rate air filter, the filtration efficiency of dust particles such as particles, smoke and microorganisms of 0.1-0.2 μm reaches more than 99.999%. HEPA (High efficiency particulate air Filter), a high-efficiency air filter, a filter screen that meets the HEPA standard, has an effective rate of 99.7% for 0.1-0.3 μm. When the quality of the outdoor fresh air is good, and the fresh air mainly contains dust particles above 5 μm, the medium-efficiency filter 182 and the high-efficiency filter 183 are turned on, and when the fresh air blower 100 is working, the fresh air can pass through the primary-effect filter with less energy consumption 181 is fully filtered, and then enters the room through the fresh air channel 120; when the quality of the outdoor fresh air is moderate, and the fresh air mainly contains dust particles above 0.3 μm, the medium-efficiency filter 182 is turned off, and the high-efficiency filter 183 is turned on. When the fresh air blower 100 is working, Moderate energy consumption makes the fresh air pass through the primary filter 181 and the medium filter 182 to fully filter in turn, and then enters the room through the fresh air channel 120; when the quality of the outdoor fresh air is poor, close the medium filter 182 and the high efficiency filter 183 When the fresh air blower 100 is working, more energy is consumed to make the fresh air pass through the primary filter 181 , the medium filter 182 and the high efficiency filter 183 to fully filter, and then enter the room through the fresh air channel 120 . According to the different grades of fresh air, different combinations of filter screens are selected to filter the air, the filtering effect is good, and energy waste is avoided.

In this embodiment, a second purifier 190 is disposed in one end of the dirty air channel 130 adjacent to the dirty air inlet 131 , and the second purifier 190 is preferably a primary filter. The second purifier 190 is set up to prevent the indoor air quality from being too poor and directly discharged into the outside to affect the outdoor air quality. The second purifier 190 can purify the polluted air and discharge it to the outside after meeting the air emission standards.

In this embodiment, the fresh air blower 100 also includes an integrated circuit 170, the fresh air inlet 121 is provided with an air quality sensor 173, the medium-efficiency filter 182 is connected with a first motor 171 that controls its opening and closing, and the high-efficiency filter 183 is connected with a first motor 171 that controls its opening and closing. The switching second motor 172 , the first motor 171 , the second motor 172 and the air quality sensor 173 are respectively connected to the integrated circuit 170 . The air quality sensor 173 can classify the fresh air quality: good, medium, and poor, and transmit the air quality level signal to the integrated circuit 170 for processing. The integrated circuit 170 transmits a control signal to the first air quality level according to the fresh air quality level. The motor 171 and the second motor 172, the first motor 171 controls the opening and closing of the medium-efficiency filter 182 according to the control signal, and the second motor 172 controls the opening and closing of the high-efficiency filter 183 according to the signal, so as to realize the intelligent control of air purification.

Referring to Fig. 1 and Fig. 2, the working principle of the fresh air blower 100 with air purification function is:

The fresh air inlet 121 draws outdoor fresh air under the action of the fresh air variable frequency motor 151, and the air quality sensor 173 classifies the quality of the fresh air: good, medium or poor, and transmits the air quality level signal to the integrated circuit 170 for processing. The circuit 170 transmits control signals to the first motor 171 and the second motor 172 according to the fresh air quality level, the first motor 171 controls the opening and closing of the medium-efficiency filter 182 according to the control signal, and the second motor 172 controls the opening and closing of the high-efficiency filter 183 according to the signal Opening and closing, specifically: when the quality of outdoor fresh air is good, the first motor 171 controls the medium-efficiency filter screen 182 to open, the second motor 172 controls the high-efficiency filter screen 183 to open, and the fresh air is fully filtered through the primary-effect filter screen 181; When the fresh air quality is medium, the first motor 171 controls the medium-efficiency filter 182 to close, the second motor 172 controls the high-efficiency filter 183 to open, and the fresh air is fully filtered through the primary filter 181 and the medium-efficiency filter 182 in turn; When it is poor, the first motor 171 controls the medium-efficiency filter screen 182 to close, the second motor 172 controls the high-efficiency filter screen 183 to close, and the fresh air is fully filtered through the primary-effect filter screen 181, the medium-efficiency filter screen 182 and the high-efficiency filter screen 183 successively. Realize the intelligent control of air purification. The fresh air purified by the first purifier 180 reaches the healthy air standard, then passes through the fresh air channel 120, and finally is sent to the top of the room by the fresh air outlet 122. At the same time, the dirty air inlet 131 sucks the dirty air at the bottom of the room under the action of the dirty air variable frequency motor 152, and after being purified by the primary filter of the second purifier 190, it passes through the dirty air channel 130 after reaching the air discharge standard. , and finally discharged to the outside by the dirty air outlet 132, and the arrows in the figure indicate the flow paths of fresh air and dirty air. When the fresh air passes through the fresh air channel 120 and the dirty air passes through the dirty air channel 130, the fresh air and the dirty air are under the action of the heat exchange core 140, and the fresh air recovers energy from the dirty air for heating or cooling before entering the room.

To sum up, the fresh air fan with air purification function of the utility model can select and switch filters with different efficiency to filter the air according to the outdoor environment and the different levels of the set air, selective intelligent filtering, energy saving and high efficiency.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A fresh fan with air cleaning function, characterized in that it comprises a housing, and a fresh air channel and a dirty air channel which are located in the housing and are not connected to each other, and a fresh air channel is provided on one side of the housing. The other side of the housing is provided with a fresh air outlet and a dirty air inlet, the fresh air inlet and the fresh air outlet communicate through the fresh air channel, and the dirty air inlet and the dirty air outlet Through the communication of the dirty air channel, a first purifier is arranged in the fresh air channel, and the first purifier includes a primary effect filter screen arranged in sequence from the fresh air inlet to the fresh air outlet, and an openable and closable middle filter. High-efficiency filter and openable and closed high-efficiency filter. 2 . The fresh air blower with air purification function according to claim 1 , wherein the first purifier is arranged at one end of the fresh air passage adjacent to the fresh air inlet. 3 . 3. The fresh air blower with air purification function according to claim 1, characterized in that, the fresh air blower also includes an integrated circuit, the medium-efficiency filter is connected with a first motor that controls its opening and closing, and the high-efficiency The filter net is connected with a second motor for controlling its opening and closing, and the first motor and the second motor are respectively connected with the integrated circuit. 4 . The fresh air blower with air purification function according to claim 3 , wherein an air quality sensor is provided in the fresh air inlet, and the air quality sensor is connected to the integrated circuit. 5. The fresh air blower with air purification function according to claim 1, characterized in that, the primary filter is fixed in the fresh air channel, and the opposite ends of the medium filter are connected to the fresh air channel. The inner wall of the high-efficiency filter is pivotally connected, and the opposite ends of the high-efficiency filter are pivotally connected with the inner wall of the fresh air channel. 6 . The fresh air blower with air purification function according to claim 1 , wherein a second purifier is provided in one end of the dirty air channel adjacent to the dirty air inlet. 7 . 7 . The fresh air blower with air purification function according to claim 1 , wherein the dirty air outlet is located above the fresh air inlet, and the fresh air outlet is located above the dirty air inlet. 8. The fresh air machine with air purification function according to claim 1, characterized in that, the fresh air machine further comprises a heat exchange core located in the housing, and both the fresh air channel and the dirty air channel pass through The heat exchange core. 9. The fresh air blower with air purification function according to claim 1, characterized in that, one end of the fresh air channel adjacent to the fresh air inlet is provided with a fresh air frequency conversion motor; the dirty air channel is adjacent to the dirty air outlet One end is provided with a sewage wind variable frequency motor. 10. The fresh air blower with air purification function according to any one of claims 1 to 9, characterized in that the fresh air outlet is provided with a first grille, and the dirty air inlet is provided with a second grille.