CN216080089U - Fresh air device and air conditioner - Google Patents
Fresh air device and air conditioner Download PDFInfo
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- CN216080089U CN216080089U CN202121789438.4U CN202121789438U CN216080089U CN 216080089 U CN216080089 U CN 216080089U CN 202121789438 U CN202121789438 U CN 202121789438U CN 216080089 U CN216080089 U CN 216080089U
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Abstract
The utility model provides a fresh air device and an air conditioner. The shell is provided with an air inlet, an air outlet and a circulation air duct communicated with the air inlet and the air outlet; the purification net is arranged in the circulation air channel, and divides the circulation air channel into an adjusting cavity and an air wheel cavity in the direction from the air inlet to the air outlet; the fan assembly comprises a driving device and two centrifugal wind wheels, and the driving device is connected with the two centrifugal wind wheels; the valve component is mounted in the regulating cavity; wherein, the air intake includes new trend air intake and purification air intake, the valve module has with new trend air intake with purify the air intake wherein arbitrary one is opened, arbitrary another closed first state to and with new trend air intake with purify the second state that the air intake all opened. The technical scheme of the utility model expands the functions of the shell fresh air device.
Description
Technical Field
The utility model relates to the field of air treatment, in particular to a fresh air device and an air conditioner comprising the same.
Background
As users have higher requirements for air conditioning experience, more and more users tend to purchase air conditioners with fresh air functions. The inside of this kind of air conditioner is provided with new trend device, and new trend device can with outdoor intercommunication, and when the user opened the new trend mode, the new trend device operation can introduce indoor with outdoor fresh air.
However, such fresh air devices are either open or closed; when the air conditioner is opened, fresh air can be led into the room, and when the air conditioner is closed, indoor air internal circulation is achieved, and the function is single.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fresh air device, aiming at expanding the functions of the fresh air device.
In order to solve the above problems, the present invention provides a fresh air device, including:
the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an air inlet, an air outlet and a circulation air duct communicated with the air inlet and the air outlet;
the purification net is arranged in the circulation air channel, and divides the circulation air channel into an adjusting cavity and an air wheel cavity in the direction from the air inlet to the air outlet;
the fan assembly comprises a driving device and two centrifugal wind wheels, and the driving device is connected with the two centrifugal wind wheels;
a valve assembly mounted to the regulating chamber;
wherein, the air intake includes new trend air intake and purification air intake, the valve module has with new trend air intake with purify the air intake wherein arbitrary one is opened, arbitrary another closed first state to and with new trend air intake with purify the second state that the air intake all opened.
In one embodiment, the valve assembly includes a damper movably mounted to the housing.
In one embodiment, the damper is rotatably coupled to the housing.
In one embodiment, the fresh air intake opening is adjacent to the purge air intake opening, and the damper is hinged to the corresponding housing portion between the fresh air intake opening and the purge air intake opening.
In one embodiment, when the air door is in the second state, the adjusting cavity is divided into a fresh air inlet cavity and a purification air inlet cavity by the air door, wherein the fresh air inlet cavity and the purification air inlet cavity are isolated from each other.
In an embodiment, the wind wheel chamber is divided into the new trend chamber of mutual isolation and purifies the chamber by the fan subassembly, the new trend air inlet chamber passes through the filter screen with new trend chamber intercommunication, it passes through to purify the air inlet chamber the filter screen with purify the chamber.
In an embodiment, the driving device includes a dual-shaft motor, a motor shaft of the dual-shaft motor is respectively and correspondingly connected with the two centrifugal wind wheels, and the two centrifugal wind wheels can synchronously run.
In one embodiment, the dual-shaft motor comprises a rotating shaft and a motor main body, the rotating shaft penetrates through two opposite sides of the motor main body, the motor main body is located between the two centrifugal wind wheels, and two ends of the rotating shaft are respectively and correspondingly connected with the two centrifugal wind wheels.
In an embodiment, the fan assembly further includes a volute, two independent volute cavities are formed in the volute, the two centrifugal wind wheels are respectively and correspondingly installed in the two volute cavities, and a motor body of the dual-axis motor is located between the two centrifugal wind wheels.
The utility model also provides an air conditioner, comprising a fresh air device, wherein the fresh air device comprises:
the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an air inlet, an air outlet and a circulation air duct communicated with the air inlet and the air outlet;
the purification net is arranged in the circulation air channel, and divides the circulation air channel into an adjusting cavity and an air wheel cavity in the direction from the air inlet to the air outlet;
the fan assembly comprises a driving device and two centrifugal wind wheels, and the driving device is connected with the two centrifugal wind wheels;
a valve assembly mounted to the regulating chamber;
wherein, the air intake includes new trend air intake and purification air intake, the valve module has with new trend air intake with purify the air intake wherein arbitrary one is opened, arbitrary another closed first state to and with new trend air intake with purify the second state that the air intake all opened.
According to the technical scheme, a purification net, two centrifugal wind wheels and a valve assembly are arranged in a shell of a fresh air device, a circulation air channel is divided into an adjusting cavity and a wind wheel cavity through the purification net, the two centrifugal wind wheels are arranged in the wind wheel cavity, and the valve assembly is movably mounted in the adjusting cavity. Through adjusting valve subassembly, can make new trend device realize new trend mode, purification mode and purify + three kinds of air supply modes of new trend mode to the function of new trend device has been expanded.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a top view of an embodiment of a fresh air device according to the present invention;
FIG. 2 is a cross-sectional view taken along line D-D of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1; fig. 4 is a cross-sectional view taken along line C-C of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 10 | |
11 | |
|
| 12 | Purifying net | 13 | |
|
| 14 | |
111 | |
|
| 111a | Purifying |
111b | |
|
| 11a | Wind wheel cavity | 11a1 | Purifying cavity | |
| 11a2 | |
11b | Regulating cavity | |
| 11b1 | Air purifying and feeding cavity | 11b2 | Fresh |
|
| 112 | |
13a | |
|
| | Drive device | 13c | Spiral casing |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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 some embodiments of the present invention, and not all 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a fresh air device 10 and an air conditioner including the fresh air device 10. The air conditioner can be a wall-mounted air conditioner, a floor type air conditioner, a mobile air conditioner, a window machine, a ceiling type air conditioner and a ducted air conditioner. The air conditioner has a casing, be provided with the fresh air duct entry on the casing, fresh air outlet 112 and purification air intake, fresh air duct penetrates in the casing through the fresh air duct entry, the other end stretches into outdoors, new trend device 10 respectively with fresh air duct, fresh air outlet 112 intercommunication and purification air intake intercommunication, when new trend device 10 moves, can introduce outdoor new trend by the fresh air duct, then blow to indoorly from fresh air outlet 112, new trend device 10 can also be with indoor wind from purifying the air intake introduction, blow to indoorly by fresh air outlet 112 after the filtration purification.
The air conditioner uses wall-hanging air conditioner as an example, and it includes chassis, heat exchanger, cross-flow wind wheel, face frame and panel, and the heat exchanger is fixed in the chassis, and the cross-flow wind wheel is fixed in the chassis to the cross-flow wind wheel sets up in the heat exchanger encloses the accommodation space who closes the formation, and the face frame is installed in the chassis, and shroud heat exchanger and cross-flow wind wheel, the panel is installed in face frame front side, and new trend device 10 can be fixed on the chassis.
Referring to fig. 1 and 2, for the fresh air device 10 of the present embodiment, it includes a housing 11, a purification net 12, a fan assembly 13 and a valve assembly 14. The housing 11 has an air inlet 111, an air outlet 112, and a ventilation duct communicating the air inlet 111 and the air outlet 112. The purification net 12 is installed in the circulation air duct, and in the direction from the air inlet 111 to the air outlet 112, the purification net 12 divides the circulation air duct into an adjustment cavity 11b and an air wheel cavity 11 a. The fan assembly 13 comprises a driving device 13b and two centrifugal wind wheels 13a, and the driving device 13b is connected with the two centrifugal wind wheels 13 a. The valve assembly 14 is movably mounted to the regulating chamber 11 b. The air inlet 111 includes a fresh air inlet 111b and a purification air inlet 111a, and the valve assembly 14 has a first state in which one of the fresh air inlet 111b and the purification air inlet 111a is opened and the other is closed, and a second state in which both the fresh air inlet 111b and the purification air inlet 111a are opened.
Referring to fig. 3 and 4, it should be noted that the fresh air device 10 has three modes, the first mode is a fresh air mode, that is, the valve assembly 14 covers the purifying air inlet 111a, the fresh air inlet 111b is opened, and the centrifugal wind wheel 13a can draw in fresh air from the fresh air inlet 111b and then discharge the fresh air from the air outlet 112. The second mode is a cleaning mode, that is, the valve assembly 14 opens the cleaning air inlet 111a, the fresh air inlet 111b covers, and the centrifugal wind wheel 13a can draw indoor dirty air in through the cleaning air inlet 111a and then discharge the dirty air through the air outlet 112. The third mode is a fresh air and indoor purification mode, that is, the valve assembly 14 opens both the fresh air inlet 111b and the purification air inlet 111a, and the centrifugal wind wheel 13a can simultaneously draw in the fresh outdoor air and the dirty indoor air, and then blow out the fresh air and the dirty indoor air through the air outlet 112. No matter the fresh air is outdoor or the dirty air is indoor, the fresh air or the dirty air is purified by the purifying net 12 after entering the shell 11. Here, the purification net 12 may be selected according to the user's needs. For example, the user mainly wants to filter PM2.5 in the outdoor fresh air, so the filter screen only needs to adopt a PM2.5 filter screen. For another example, if the user feels that the room is relatively stuffy and the concentration of carbon dioxide in the room is often high, the freshness of the indoor air is insufficient, and the filter screen can be set as a carbon dioxide filter screen. For another example, after the user finishes decorating a new house, the filter screen can be set to be a formaldehyde gram star screen. In summary, the purifying net 12 may be at least one of a Hepa net, a primary filter net, an activated carbon net or a formaldehyde clarke net. Or a combination of any two. In the combination of the two types, one half of the filter net may be one of the above-mentioned over purification nets 12 (for example, a Hepa net), and the other half may be the other of the above-mentioned over purification nets 12 (for example, a formaldehyde clarke net), and the two types may be arranged side by side. In addition, if the user desires multiple functions for the purification net 12, it is contemplated that two different purification nets 12 may be stacked to form the purification net 12 of this embodiment.
According to the technical scheme, a purifying net 12, two centrifugal wind wheels 13a and a valve assembly 14 are arranged in a shell 11 of a fresh air device 10, a circulation air channel is divided into an adjusting cavity 11b and a wind wheel cavity 11a through the purifying net 12, the two centrifugal wind wheels 13a are arranged in the wind wheel cavity 11a, and the valve assembly 14 is movably mounted in the adjusting cavity 11 b. Through adjusting valve assembly 14, can make new trend device 10 realize new trend mode, purification mode and purify + three kinds of air supply modes of new trend mode to the function of new trend device 10 has been expanded.
In the above embodiments, the valve assembly 14 can open the fresh air intake 111b and/or the purge air intake 111a, and there are various embodiments of the valve assembly 14 for achieving such functions, for example, a controllable valve plate is installed at each of the fresh air intake 111b and the purge air intake 111a, the two valve plates can be controlled independently, and any one of the valve plates can be selectively opened or closed according to requirements.
In another embodiment of valve assembly 14, valve assembly 14 includes a damper movably mounted to housing 11. The air door can be movably arranged in various ways, such as sliding installation: the valve assembly 14 slides along the direction from the purification air inlet 111a to the fresh air inlet 111b, and when the valve assembly 14 slides to the purification air inlet 111a and blocks the purification air inlet 111a, a fresh air mode can be realized; when the valve assembly 14 slides to a position between the purification air inlet 111a and the fresh air inlet 111b, both the purification air inlet 111a and the fresh air inlet 111b are opened, so as to realize a fresh air + purification mode; when the valve assembly 14 slides to block the fresh air intake 111b, the purge intake 111a is opened, thereby implementing a purge mode. For another example, the rotation mounting (see fig. 3): the air door has three positions on the rotation path, and when the air door is at the first position, the air door covers the fresh air inlet 111b and opens the purification air inlet 111 a; when the air door is at the second position, the fresh air inlet 111b and the purification air inlet 111a are both opened; in the third position, the damper opens the fresh air intake 111b and closes the purge air intake 111 a.
If the air door adopts the mode of sliding, then still need set up slide rail and gear, the structure is more complicated while, and the cost is also higher. In view of this, with continued reference to fig. 3, in a preferred embodiment, the fresh air inlet 111b is adjacent to the purge air inlet 111a, and the damper is hinged to a corresponding portion of the housing 11 between the fresh air inlet 111b and the purge air inlet 111 a.
Therefore, the air door only needs to be controlled by the motor to rotate forwards and reversely.
Further, considering that the fresh air device 10 is filtered by means of air suction, the noise is less than that of air blowing, but if the damper cannot seal the fresh air inlet 111b or the clean air inlet 111a, noise, such as trumpet noise, is easily generated when the fresh air device 10 is in operation. In view of this, in a preferred embodiment, a sealing rib may be disposed on the air door, and when the air door rotates to cover the purge air inlet 111a, the sealing rib may make the air door and the purge air inlet 111a airtight; therefore, when the fresh air device 10 works, the air flow enters from the fresh air inlet 111b, and the noise generated at the position of the purification air inlet 111a due to poor sealing is avoided. Here, in order to make the sealing effect better, the sealing rib may be made of a rubber material, a silicone material, or other flexible members. Considering that the purification air inlet 111a and the fresh air inlet 111b need to be sealed when being covered by the air door, sealing ribs can be arranged on both the front surface and the back surface of the air door.
Certainly, the sealing ribs may not be disposed on the air door, and may be disposed at the peripheries of the fresh air inlet 111b and the purification air inlet 111a, so as to achieve a better sealing effect.
The technical scheme for realizing the sealing of the air door on the fresh air inlet 111b and/or the purification air inlet 111a can be that a sealing rib is arranged on the air door, a sealing groove corresponding to the position of the sealing rib is arranged on the periphery of the fresh air inlet 111b and/or the purification air inlet 111a, and when the air door rotates to seal the fresh air inlet 111b and/or the purification air inlet 111a, the sealing rib is matched with the sealing groove, so that a better sealing effect is realized.
When the valve assembly 14 is in the second state, the valve assembly 14 can divide the adjusting cavity 11b into the fresh air inlet cavity 11b2And a clean air intake chamber 11b1Fresh air inlet cavity 11b2And a clean air intake chamber 11b1Can be communicated with each other or isolated from each other. If the two are connected, when the fresh air device 10 is in operation, an indoor airflow enters the clean air inlet chamber 11b from the clean air inlet 111a1An outdoor airflow enters the fresh air inlet cavity 11b from the fresh air inlet 111b2However, there is a tendency for the temperature and humidity of the outdoor air flow and the indoor air flow to differ, and the two may move relative to each other due to the temperature difference within the conditioning chamber 11b, thereby generating noise. In addition, the flow rates of the two air flows may also be different, so that the air flows in the fresh air inlet cavity 11b2And a clean air intake chamber 11b1The gas in the interiorThe pressure also has a difference, which also causes convection between the two, thus generating turbulence and noise, and also affecting the air output. In view of this, in the present embodiment, when the valve assembly 14 is in the second state, the regulating cavity 11b is divided into the mutually isolated fresh air intake cavities 11b by the valve assembly 142And a clean air intake chamber 11b1。
The valve divides the control chamber 11b into separate fresh air inlet chambers 11b2And a clean air intake chamber 11b1For example, the free end of the valve is provided with a flexible member, when the valve rotates 90 ° from the first state, the valve reaches the second state, and the flexible member at the end of the valve can be in sealing contact with the top of the adjusting chamber 11b, where the fresh air inlet 111b and the purification air inlet 111a are located at the bottom of the adjusting chamber 11b, and the top of the adjusting chamber 11b is opposite to the bottom. For another example, a blocking table is arranged at the top of the adjusting cavity 11b, when the valve rotates 90 degrees from the first state, the valve reaches the second state, and the valve can be abutted against the blocking table, so that the fresh air inlet cavity 11b is realized2And a clean air intake chamber 11b1Isolation of (2). Of course, in order to make the isolation effect better, the outer surface of the baffle table can be coated with a flexible part, or the tail end of the valve can be provided with a flexible part.
In the above embodiment, the fresh air inlet chamber 11b2And a clean air intake chamber 11b1Are isolated from each other, but if convection occurs in the airflow in the wind wheel cavity 11a, noise is also generated, which also affects the wind output. In a preferred embodiment, referring to fig. 2, in order to prevent the air flow in the wind wheel cavity 11a from convection, the wind wheel cavity 11a is divided into separated fresh air cavities 11a by the fan assembly 132And a purification chamber 11a1The fresh air inlet cavity 11b2Through the filter screen and the fresh air cavity 11a2Connected, the purified air inlet chamber 11b1Through the filter screen and the purification chamber 11a1And (4) communicating.
Thus, in the direction from the air inlet 111 to the air outlet 112, two separated sub-air ducts can be formed in the housing 11 of the fresh air device 10, and no matter whether the air flow flows through one of the two sub-air ducts alone or through the two sub-air ducts simultaneously, the air flow is not affected.
The fan assembly 13 divides the wind wheel cavity 11a into a fresh air cavity 11a2And the cleaning chamber 11a1 can be realized by a partition, for example, the wind wheel chamber 11a is directly divided into two by the partition, and a centrifugal wind wheel 13a and a motor are arranged in each chamber. Of course, the two centrifugal wind wheels 13a may share one motor, the motor may be fixed between the two centrifugal wind wheels 13a, or one of the centrifugal wind wheels 13a may be located between the other centrifugal wind wheel 13a and the motor, and the motor connects the two centrifugal wind wheels 13a in series through a longer motor shaft.
In order to make the air supply effect of the fresh air device 10 better, the wind wheel cavity 11a needs to be as large as possible, but if the shell 11 is made large, the whole volume of the fresh air device 10 becomes larger, and thus, the cost is high. In view of this, with continuing reference to fig. 2, in the present embodiment, the driving device 13b includes a two-shaft motor, a motor shaft of the two-shaft motor is respectively connected to the two centrifugal wind wheels 13a, and the two centrifugal wind wheels 13a can operate synchronously.
The two-shaft motor has two motor shafts as the name implies, the two motor shafts can be a motor main body, the shafts penetrate through the front side and the rear side of the motor main body, so that a front shaft is formed at the front side, a rear shaft is formed at the rear side, and the two shafts are respectively correspondingly connected with the two centrifugal wind wheels 13 a. Two independent shafts can be respectively fixed on the front side and the rear side of the motor main body, and the two independent shafts are respectively and correspondingly connected with the two centrifugal wind wheels 13 a. The motor main body can also be provided with two shafts, one of which is a solid shaft and the other is a hollow shaft, the hollow shaft is sleeved on the periphery of the solid shaft, the solid shaft is longer than the hollow shaft, the solid shaft is connected with the centrifugal wind wheel 13a far away from the motor main body, and the hollow shaft is connected with the centrifugal wind wheel 13a near to the motor main body.
Because the diameters of the two centrifugal wind wheels 13a are the same, the rotating speeds are also the same, and if the inner spaces of the wind wheel cavities 11a are different in size, the fresh air inlet cavities 11b2And a clean air intake chamber 11b1One of the centrifugal wind wheels 13a is not matched with one of the centrifugal wind wheelsAnd thus the noise and the air output are inevitably affected. In view of this, in this embodiment, the dual-shaft motor includes a rotating shaft and a motor main body, the rotating shaft passes through two opposite sides of the motor main body, the motor main body is located between the two centrifugal wind wheels 13a, and two ends of the rotating shaft are respectively and correspondingly connected with the two centrifugal wind wheels 13 a. Therefore, the fresh air inlet cavity 11b can be ensured2And a clean air intake chamber 11b1Both of which are matched with two centrifugal wind wheels 13 a.
On the basis of the previous embodiment, in order to further improve the air supply effect of the fresh air device 10, in this embodiment, the fan assembly 13 further includes a volute 13c, two independent volute cavities are formed in the volute 13c, the two centrifugal wind wheels 13a are respectively and correspondingly installed in the two volute cavities, and a motor main body of the dual-shaft motor is located between the two centrifugal wind wheels 13 a.
Referring to fig. 2, although the casing 11 may also be used as a volute of two centrifugal wind wheels 13a, on one hand, there are noise problems (noise generated by airflow when the wind wheels rotate) and on the other hand, there is a sealing problem (the casing 11 is assembled by a plurality of parts, generally formed by assembling at least two half shells), which determines that if the casing 11 is used as a volute of two centrifugal wind wheels 13a, the fresh air device 10 inevitably generates a loud noise or even leaks air when operating. Therefore, adding the volute 13c in the housing 11 will greatly improve the above situation.
For the air conditioner in the above embodiment, a carbon dioxide sensor is added. The carbon dioxide sensor can be disposed on the fresh air device 10, for example, one carbon dioxide sensor is disposed on both the fresh air inlet 111b and the clean air inlet 111a, and the carbon dioxide sensor is connected to the electronic control box of the air conditioner.
The carbon dioxide sensor arranged at the fresh air inlet 111b is a first sensor, the carbon dioxide sensor arranged at the purification air inlet 111a is a second sensor, when outdoor carbon dioxide concentration needs to be detected, the purification air inlet 111a can be closed through the valve assembly 14, the fresh air inlet 111b is opened, when the fresh air device 10 runs, outdoor air enters the shell 11 through the fresh air inlet 111b, and in the process, outdoor fresh air flows through the first sensor, so that the outdoor carbon dioxide concentration can be obtained. When the indoor carbon dioxide concentration needs to be detected, the purification air inlet 111a can be opened through the valve assembly 14, the fresh air inlet 111b is closed, when the fresh air device 10 runs, indoor air enters the shell 11 through the purification air inlet 111a, and in the process, the indoor air flows through the second sensor, so that the indoor carbon dioxide concentration can be obtained. Of course, the fresh air inlet 111b and the indoor air inlet 111 can be opened simultaneously, and the outdoor fresh air and the indoor air respectively flow through the first sensor and the second sensor correspondingly, so that the outdoor carbon dioxide concentration and the indoor carbon dioxide concentration can be rapidly obtained.
If the concentration of the carbon dioxide in the room is high, the valve assembly 14 can be controlled to open the fresh air inlet 111b and close the purification air inlet 111a, so that the fresh air outside the room can rapidly enter the room, the air in the room can be neutralized, and the concentration of the carbon dioxide in the room can be reduced.
If the concentration of the carbon dioxide in the room is not high or low, the valve assembly 14 can be controlled to open both the fresh air inlet 111b and the purification air inlet 111a, so as to purify the room and introduce fresh air while continuously keeping the carbon dioxide in a relatively low environment.
If the concentration of the obtained indoor carbon dioxide is extremely low, the valve assembly 14 can be controlled to close the fresh air inlet 111b and open the purification air inlet 111a, so that outdoor fresh air can rapidly enter the room, and the indoor air is neutralized, so that the concentration of other components is reduced.
Aiming at the air conditioner provided with the fresh air device 10, the utility model also provides an air conditioner control method, which comprises the following steps:
the method comprises the following steps: starting the air conditioner;
step two: acquiring indoor carbon dioxide concentration and outdoor carbon dioxide concentration;
step three: comparing the difference delta between the indoor carbon dioxide concentration and the outdoor carbon dioxide concentration with a preset range;
when delta is confirmed to be within the preset range, the valve assembly 14 is controlled to open both the fresh air inlet 111b and the purge air inlet 111 a.
When delta is confirmed to exceed the upper limit value of the preset range, the valve assembly 14 is controlled to open the fresh air inlet 111b and close the purification air inlet 111 a;
when delta is confirmed to be lower than the lower limit value of the preset range, the valve assembly 14 is controlled to close the fresh air inlet 111b and open the purification air inlet 111 a;
step four: in the third step, the fresh air device 10 runs for a preset time t0And then returning to the step two.
The concentration of carbon dioxide in the air is generally 0.03%, and the concentration of carbon dioxide in the room is generally 0.1% -0.3%. Accordingly, it is possible to preliminarily determine the preset range to be 0.07% to 0.27%, and for this range [ a1, a2], 0.07% of a1 and 0.27% of a2 may be taken, that is, when the value of δ is higher than 0.27%, it may be considered that the indoor carbon dioxide concentration is high, and at this time, fresh air needs to be rapidly introduced to neutralize the high-concentration carbon dioxide in the room. When the delta value is 0.07-0.27, the concentration of carbon dioxide can be considered to be in the middle, fresh air can be introduced on one hand, purification is started on the other hand, and the mode of fresh air and purification is realized. When the delta value is lower than 0.07, the indoor environment is probably not occupied by people, but the concentration of formaldehyde or other substances in the indoor environment is probably higher, and the purification function can be started.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A fresh air device, comprising:
the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an air inlet, an air outlet and a circulation air duct communicated with the air inlet and the air outlet;
the purification net is arranged in the circulation air channel, and divides the circulation air channel into an adjusting cavity and an air wheel cavity in the direction from the air inlet to the air outlet;
the fan assembly comprises a driving device and two centrifugal wind wheels, and the driving device is connected with the two centrifugal wind wheels;
a valve assembly mounted to the regulating chamber;
wherein, the air intake includes new trend air intake and purification air intake, the valve module has with new trend air intake with purify the air intake wherein arbitrary one is opened, arbitrary another closed first state to and with new trend air intake with purify the second state that the air intake all opened.
2. The fresh air device as claimed in claim 1, wherein the valve assembly comprises a damper movably mounted to the housing.
3. The fresh air device as claimed in claim 2, wherein the damper is rotatably connected to the housing.
4. The fresh air device as claimed in claim 3, wherein the fresh air intake opening is adjacent to the purge intake opening, and the damper is hingedly connected to the corresponding portion of the housing between the fresh air intake opening and the purge intake opening.
5. The fresh air device as claimed in claim 4, wherein when the damper is in the second state, the conditioning chamber is divided by the damper into a fresh air intake chamber and a clean air intake chamber that are isolated from each other.
6. The fresh air device as claimed in claim 4, wherein the air wheel chamber is divided into a fresh air chamber and a purification chamber by the fan assembly, the fresh air inlet chamber is communicated with the fresh air chamber through a filter screen, and the purification inlet chamber is communicated with the purification chamber through a filter screen.
7. The fresh air device as claimed in claim 6, wherein the driving device comprises a double-shaft motor, a motor shaft of the double-shaft motor is respectively and correspondingly connected with the two centrifugal wind wheels, and the two centrifugal wind wheels can synchronously operate.
8. The fresh air device as claimed in claim 7, wherein the dual-shaft motor comprises a rotating shaft and a motor body, the rotating shaft penetrates through two opposite sides of the motor body, the motor body is located between the two centrifugal wind wheels, and two ends of the rotating shaft are respectively correspondingly connected with the two centrifugal wind wheels.
9. The fresh air device as claimed in claim 8, wherein the fan assembly further includes a volute, two independent volute cavities are formed in the volute, the two centrifugal wind wheels are respectively and correspondingly mounted in the two volute cavities, and a motor body of the dual-shaft motor is located between the two centrifugal wind wheels.
10. An air conditioner characterized by comprising the fresh air device as recited in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121789438.4U CN216080089U (en) | 2021-07-31 | 2021-07-31 | Fresh air device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116557966A (en) * | 2023-01-13 | 2023-08-08 | 无锡宁乐新能源科技有限公司 | Variable-air-volume high-static-pressure fresh air conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557966A (en) * | 2023-01-13 | 2023-08-08 | 无锡宁乐新能源科技有限公司 | Variable-air-volume high-static-pressure fresh air conditioning system |
| CN116557966B (en) * | 2023-01-13 | 2023-10-20 | 无锡宁乐新能源科技有限公司 | Variable-air-volume high-static-pressure fresh air conditioning system |
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