CN209042644U - A one-way flow fresh air purifier - Google Patents

Abstract

The utility model discloses a unidirectional flow fresh air purifier, which comprises a casing and a fan assembly arranged in the casing. The fan assembly comprises a volute, and along the air inlet direction, downstream of the fan assembly is provided with a fan for eliminating noise generated by the fan assembly. Muffler. In this way, the fan assembly in the one-way flow fresh air purifier includes a volute. The fan assembly with a volute has a large air supply volume and generates a large residual pressure outside the machine, which can effectively purify and filter the outdoor air and send it into the air. Indoors, the purification efficiency is ensured, and the muffler device is added in this one-way flow fresh air purifier, which reduces the noise generated by the one-way flow fresh air purifier; thus solving the problem of the one-way flow fresh air purifier with high noise and insufficient air supply , The problem of small residual pressure outside the machine and poor air purification effect.

Description

A one-way flow fresh air purifier

technical field

The utility model relates to the technical field of fresh air purifiers, in particular to a unidirectional flow fresh air purifier.

Background technique

The one-way flow fresh air purifier is an effective air purification equipment. The one-way flow fresh air purifier is equipped with a fan. The fresh air is introduced from the outside into the one-way flow fresh air purifier through the fan, and then filtered through the filter in the equipment. Finally, it is sent to the room through the fan and the pipeline to keep the indoor air clean. After the clean air is continuously fed into the room, a positive pressure is formed, and the original dirty air in the room is continuously squeezed, and it is discharged to the outside through the gap of the doors and windows to achieve ventilation. Purpose. However, the existing one-way flow fresh air purifier has insufficient air supply and small residual pressure outside the machine, which cannot effectively discharge the indoor dirty air to the outside, resulting in poor air purification effect, and the existing fan is noisy. People's lives are troubled. Therefore, how to solve the problems of high noise, insufficient air supply, small residual pressure outside the machine, and poor air purification effect of the unidirectional flow fresh air purifier has become an important technical problem to be solved by those skilled in the art.

Utility model content

The purpose of the utility model is to provide a one-way flow fresh air purifier to solve the problems of high noise, insufficient air supply, small residual pressure outside the machine and poor air purification effect.

The purpose of this utility model is to realize through the following technical solutions:

The utility model provides a unidirectional flow fresh air purifier, which includes a case and a fan assembly arranged in the case, the fan assembly includes a volute, and along the air inlet direction, downstream of the fan assembly is provided with a fan for eliminating A muffler for noise generated by the fan assembly.

Preferably, one end of the chassis is provided with an air outlet, and the muffler device is arranged between the fan assembly and the air outlet.

Preferably, the muffler device includes a muffler tube.

Preferably, it also includes a filter assembly disposed in the chassis, the filter assembly includes a primary filter screen and a high-efficiency filter, both of which are set in a bent structure.

Preferably, a gap is provided between the primary filter and the high-efficiency filter, and the gap is provided with a slot structure for inserting the equipment selection filter.

Preferably, a detection device for detecting the state of indoor air and a controller communicatively connected to the detection device and used for controlling the air supply volume of the fan assembly according to the state of the indoor air are further included.

Preferably, the indoor air state includes a carbon dioxide concentration state or a PM2.5 concentration state or a temperature state or a humidity state of the indoor air.

Preferably, the detection device is a sensor.

Preferably, sealing cotton is provided at the connection positions of the card slot structure, the primary filter screen and the high-efficiency filter screen and the chassis.

Preferably, the inner wall of the volute is provided with muffler cotton.

In the technical solution provided by the utility model, a unidirectional flow fresh air purifier includes a chassis and a fan assembly arranged in the chassis, the fan assembly includes a volute, and along the air inlet direction, downstream of the fan assembly is provided with a fan for eliminating the generation of the fan assembly. noise muffler. In this way, the fan assembly in the one-way flow fresh air purifier includes a volute, and the fan assembly with the volute has a large air supply volume and generates a large residual pressure outside the machine, which can effectively discharge the indoor dirty air to the outdoors, ensuring that The purification efficiency is improved, and the muffler device is added in the one-way flow fresh air purifier, which reduces the noise of the one-way flow fresh air purifier; thus solving the problem of the one-way flow fresh air purifier's high noise, insufficient air supply, and excess air outside the machine. The problem is that the pressure is small and the air purification effect is poor.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic diagram of the internal structure of a unidirectional flow fresh air purifier in an embodiment of the present utility model;

2 is a schematic structural diagram of a unidirectional flow fresh air purifier in an embodiment of the present invention.

In Figure 1-2:

Chassis-1, air inlet-2, air outlet-3, fan assembly-4, volute-41, muffler-5, primary filter-6, card slot structure-7, high-efficiency filter-8, junction box -9. Controller-10.

Detailed ways

This specific embodiment provides a one-way flow fresh air purifier, which solves the problems of high noise, insufficient air supply volume, small residual pressure outside the machine, and poor air purification effect of the one-way flow fresh air purifier.

Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. In addition, the embodiments shown below do not have any limiting effect on the content of the utility model described in the claims. In addition, the whole content of the structure shown in the following embodiment is not limited to what is necessary for the solution of the invention described in the claim.

Please refer to the accompanying drawings 1-2. The unidirectional flow fresh air purifier provided in this embodiment includes a chassis 1 and a fan assembly 4 disposed in the chassis 1. The fan assembly 4 includes a volute 41. Along the air inlet direction, the fan assembly 4 Downstream is provided with a muffler device for eliminating the noise generated by the fan assembly 4 . It should be noted that the "air inlet direction" mentioned in the text refers to the placement state of the unidirectional flow fresh air purifier as shown in Figure 1, that is, the direction from left to right in the figure is the inlet direction. The wind direction passes through the fan assembly 4 and the muffler in sequence, that is to say, the muffler is installed on the right side of the fan assembly 4 . In addition, the fan assembly 4 with the volute 41 is fixed on the chassis 1 of the one-way fresh air purifier with high-strength bolts. The fan assembly 4 with the volute 41 is easy to disassemble, and the later maintenance is simpler and more convenient. In this way, the fan assembly 4 in the unidirectional flow fresh air purifier includes a volute 41, and the fan assembly 4 with the volute 41 has a large air supply volume and generates a large residual pressure outside the machine, which can effectively discharge the indoor dirty air. To the outside, the purification efficiency is ensured, and the muffler device is added in this one-way flow fresh air purifier, which reduces the noise of the one-way flow fresh air purifier; thus solving the problem of the one-way flow fresh air purifier's high noise and insufficient air supply , The problem of small residual pressure outside the machine and poor air purification effect.

As shown in Figure 1, one end of the chassis 1 is provided with an air outlet 3, and the muffler is arranged between the fan assembly 4 and the air outlet 3, that is, one end of the muffler faces the air outlet position of the fan assembly 4, and the other end faces the air outlet of the fan assembly 4. The position of the air outlet 3 of the directional fresh air purifier. In this way, the muffler is installed between the fan assembly 4 and the air outlet 3, which can eliminate noise while rectifying, so that the filtered clean air can pass through the air outlet of the one-way flow fresh air purifier more smoothly. 3 into the room.

As an optional embodiment, the muffler device includes a muffler tube 5 . Preferably, the muffler tube 5 is arranged in a cylindrical structure. The muffler tube 5 can prevent the sound from propagating while allowing the airflow to pass through, and can effectively eliminate the noise caused by the fan assembly 4 . This arrangement solves the troubles that people's lives are brought to by the large noise generated by the fan assembly 4 in the unidirectional flow fresh air purifier.

In order to play the role of filtering and purifying air, the one-way flow fresh air purifier also includes a filter assembly arranged in the chassis 1 , and the filter assembly includes a primary filter screen 6 and a high-efficiency filter screen 8 . Preferably, both the primary filter screen 6 and the high-efficiency filter screen 8 are bag-type filter screens. The bag-type structure of the filter screen of the same size will increase the expansion area. The larger the expansion area, the greater the dust holding capacity of the filter screen. In this way, the frequency of cleaning and replacement of the filter screen can be reduced in the later stage. The primary filter 6 and the high-efficiency filter 8 are sequentially arranged in the chassis 1 along the air intake direction, that is, as shown in the placement state in FIG. The one-way flow fresh air purifier is also provided with an air inlet 2 on the other side opposite to the air outlet 3. The fresh air enters the one-way flow fresh air purifier through the air inlet 2. First, the air is initially filtered through the primary filter 6, and then The air is further filtered through the high-efficiency filter 8, so that the air is double filtered to ensure the air purification effect. Both the primary filter screen 6 and the high-efficiency filter screen 8 are set to be bent structures. The final setting is a bending structure, and the filter screen is set to a bending structure to increase the expansion area, thereby increasing the contact area with the air, and achieving a better filtering effect, while increasing the dust holding capacity of the filter screen and reducing The frequency of cleaning and replacement of the filter in the later stage. In this way, the double filter screen ensures the air purification effect. At the same time, setting the filter screen as a bending structure can increase the expansion area of the filter screen and increase the dust holding capacity of the filter screen, while ensuring the air purification effect. The frequency of cleaning and replacement of the filter screen in the later period is reduced.

Different indoor environments have different requirements for air filtration. Therefore, there is a gap between the primary filter 6 and the high-efficiency filter 8, and the gap is provided with a slot structure 7 for inserting the equipment selection filter. Preferably, the card slot structure 7 can be set in multiple numbers, and equipment selection filters, such as activated carbon filters, etc., can be inserted in the card slot structure 7. According to different indoor environmental conditions, different kinds of filters can be inserted into the card slot structure 7. Filters are combined. In this way, the combination of the filters can be adjusted according to different indoor environments, so as to achieve a better purification effect.

In order to be able to change the air supply volume in real time according to the indoor air state, the one-way flow fresh air purifier also includes a detection device for detecting the indoor air state and a detection device communicably connected to the detection device for controlling the air supply of the fan assembly 4 according to the indoor air state Quantity controller 10. The controller 10 is connected to the unidirectional flow fresh air purifier through the junction box 9 . The indoor air state includes a carbon dioxide concentration state or a PM2.5 concentration state or a temperature state or a humidity state of the indoor air. Taking the PM2.5 concentration state in the indoor air as an example, when the detection device detects that the PM2.5 concentration in the indoor air is greater than or equal to the first preset value, the controller 10 controls the air supply volume of the fan assembly 4 to increase to the first preset value. A preset air supply volume; when the detection device detects that the PM2.5 concentration in the indoor air is less than the first preset value and greater than the second preset value, the controller 10 controls the air supply volume of the fan assembly 4 to drop to the second Preset air supply volume; when the detection device detects that the PM2.5 concentration in the indoor air is less than or equal to the second preset value, the controller 10 controls the air supply volume of the fan assembly 4 to decrease to the third preset air supply volume. It should be noted that the first preset value is greater than the second preset value, the first preset air supply volume is greater than the second preset air supply volume, and the second preset air supply volume is greater than the third preset air supply volume. Similarly, when the indoor air state is the carbon dioxide concentration state or temperature state or humidity state in the air, the principle of changing the air supply volume of the fan assembly 4 in real time through the indoor air state is the same as the above-mentioned real-time control according to the PM2.5 concentration in the indoor air. The principle of air supply is the same.

As an optional embodiment, the detection device is a sensor. Preferably, the sensor is arranged on the controller 10, and the controller 10 is arranged indoors, so that the indoor air state can be detected more accurately. The detection device includes a PM2.5 sensor that detects the concentration of PM2.5 in the air or a carbon dioxide sensor that detects the concentration of carbon dioxide in the air or a temperature sensor that detects indoor temperature or a humidity sensor that detects indoor air humidity. The detection device can be any of the above sensors or Any several sensors can be used in combination, so that one or more specific sensors can be selected according to the requirements to detect the indoor air state and adjust the air supply volume in real time.

In order to make the one-way flow fresh air purifier have better sealing performance, sealing cotton is provided at the connection positions of the card slot structure 7 , the primary filter screen 6 and the high-efficiency filter screen 8 and the chassis 1 . This arrangement avoids the phenomenon of air leakage caused by poor sealing between the casing of the unidirectional flow fresh air purifier and the filter screen slot in the prior art.

As a preferred embodiment, the inner wall of the volute 41 is provided with muffler cotton. During the operation of the fan assembly 4, a large noise will be generated, and the muffler cotton is attached to the inner wall of the volute 41, so that the noise generated by the fan assembly 4 can be eliminated to a certain extent.

The following content will specifically describe the unidirectional flow fresh air purifier in combination with the above embodiments. In the preferred solution of this embodiment, the unidirectional flow fresh air purifier includes a chassis 1 and a fan assembly 4 arranged in the chassis 1. The fan assembly 4 Including a volute 41, the inner wall of the volute 41 is affixed with muffler cotton, along the air inlet direction, downstream of the fan assembly 4 is provided with a muffler device for eliminating the noise generated by the fan assembly 4, the two ends of the chassis 1 are respectively provided with air inlets 2 And the air outlet 3, the muffler device is a cylindrical muffler cylinder 5, and the muffler cylinder 5 is arranged between the air outlet 3 and the fan assembly 4, that is, one end of the muffler cylinder 5 faces the air outlet position of the fan assembly 4, and the other end faces the air outlet position of the fan assembly 4. The position of the air outlet 3 of the one-way flow fresh air purifier. Along the air inlet direction, the chassis 1 is provided with a primary filter 6 and a high-efficiency filter 8. The primary filter 6 and the high-efficiency filter 8 are both bag-type structures and set in a W shape. The primary filter 6 and the high-efficiency filter There are gaps between the filter screens 8, and a plurality of card slot structures 7 for inserting the equipment selection filter screen are arranged in the gap. Set with sealing cotton. The one-way flow fresh air purifier also includes a detection device for detecting the state of the indoor air and a controller 10 communicatively connected to the detection device and used to control the air supply volume of the fan assembly 4 according to the state of the indoor air, and the state of the indoor air includes the indoor air The carbon dioxide concentration state or PM2.5 concentration state or temperature state or humidity state, the detection device is a sensor, and the sensor includes a PM2.5 sensor that detects the PM2.5 content in the air or a carbon dioxide sensor that detects the carbon dioxide content in the air. A temperature sensor or a humidity sensor for detecting indoor air humidity, and the detection device can be any one of the above sensors or any combination of the above sensors.

In addition, the fan assembly 4 with the volute 41 is fixed on the box body of the one-way flow fresh air purifier with high-strength bolts. The fan assembly 4 with the volute 41 is easy to disassemble, and the later maintenance is simpler and more convenient.

In this way, the fan assembly 4 in the one-way flow fresh air purifier includes a volute 41, and the fan assembly 4 with the volute 41 has a large air supply volume and generates a large residual pressure outside the machine, which can effectively purify the outdoor air. After filtering, it is sent into the room to ensure the purification efficiency, and the noise reduction device is added in this one-way flow fresh air purifier, which reduces the noise of the one-way flow fresh air purifier; Insufficient air volume, small residual pressure outside the machine, and poor air purification effect.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A one-way flow fresh air purifier, comprising a casing (1) and a fan assembly (4) arranged in the casing (1), wherein the fan assembly (4) comprises a volute (41) , along the air inlet direction, downstream of the fan assembly (4) is provided with a noise reduction device for eliminating the noise generated by the fan assembly (4). 2. The unidirectional flow fresh air purifier according to claim 1, wherein one end of the chassis (1) is provided with an air outlet (3), and the muffler is arranged on the fan assembly (4) and the air outlet (3). between the air outlets (3). 3. The unidirectional flow fresh air purifier according to claim 1 or 2, characterized in that, the muffler device comprises a muffler tube (5). 4. The unidirectional flow fresh air purifier according to claim 1, further comprising a filter assembly arranged in the chassis (1), the filter assembly comprising a primary filter screen (6) and a high-efficiency filter. The screen (8), the primary filter screen (6) and the high-efficiency filter screen (8) are both arranged in a bent structure. 5. The unidirectional flow fresh air purifier according to claim 4, characterized in that, a gap is provided between the primary filter screen (6) and the high-efficiency filter screen (8), and the gap is provided with a space for Insert the card slot structure (7) of the optional filter. 6. The unidirectional flow fresh air purifier according to claim 1, further comprising a detection device for detecting indoor air state and a communicable connection with said detection device for controlling according to said indoor air state A controller (10) for the air supply volume of the fan assembly (4). 7 . The unidirectional flow fresh air purifier according to claim 6 , wherein the indoor air state comprises a carbon dioxide concentration state or a PM2.5 concentration state or a temperature state or a humidity state of the indoor air. 8 . 8. The one-way flow fresh air purifier according to claim 6, wherein the detection device is a sensor. 9 . The unidirectional flow fresh air purifier according to claim 5 , wherein the card slot structure ( 7 ), the primary filter screen ( 6 ) and the high-efficiency filter screen ( 8 ) are the same as the The connection positions of the chassis (1) are all provided with sealing cotton. 10. The unidirectional flow fresh air purifier according to claim 1, characterized in that, the inner wall of the volute (41) is provided with muffler cotton.