CN110762688A

CN110762688A - Air inducing structure, fresh air system, control method and computer readable storage medium

Info

Publication number: CN110762688A
Application number: CN201911203397.3A
Authority: CN
Inventors: 袁紫琪; 马列; 易正清; 王波
Original assignee: Midea Group Co Ltd; Guangdong Midea Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-02-07

Abstract

The invention provides an induced air structure, a fresh air system, a control method and a computer readable storage medium, wherein the induced air structure comprises: a motor; and the first axial flow wind wheel is connected with a motor and used for driving air, wherein the motor is used for driving the first axial flow wind wheel. By the technical scheme of the invention, the volume of the air inducing structure and the fresh air system is effectively reduced, the energy consumption is reduced, the energy is saved, and the operation of the fresh air system can be automatically controlled according to the concentration and the change of pollutants.

Description

Air inducing structure, fresh air system, control method and computer readable storage medium

Technical Field

The invention relates to the technical field, in particular to an induced draft structure, a fresh air system, a control method and a computer readable storage medium.

Background

The existing fresh air system generally adopts a centrifugal wind wheel to suck outside air from the outside into the room for air exchange, but the body of the centrifugal wind wheel is large in size, inconvenient to install, high in power and high in energy consumption.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

In view of the above, an object of the present invention is to provide an induced draft structure.

Another object of the present invention is to provide a fresh air system.

It is a further object of the invention to provide a control method.

It is yet another object of the present invention to provide a computer-readable storage medium.

In order to achieve the above object, a first aspect of the present invention provides an induced draft structure, including: a motor; and the first axial flow wind wheel is connected with a motor and used for driving air, wherein the motor is used for driving the first axial flow wind wheel.

In the technical scheme, the axial flow wind wheel is adopted to replace the centrifugal wind wheel in the air inducing structure, so that the volume of the air inducing structure and the volume of the fresh air system can be effectively reduced, the air inducing structure and the fresh air system are easier to install and transport, and the power of the air inducing structure can be reduced on the premise of keeping the same air volume, so that the energy consumption is reduced, and the energy is saved.

The motor is arranged, so that the first axial flow wind wheel is driven to rotate by the motor, outdoor fresh air is sucked into a room, indoor ventilation is achieved, and the freshness of the indoor air is improved; the axial flow wind wheel is adopted to replace a centrifugal wind wheel, the volume is smaller, and the power is also smaller under the same air volume, so that compared with an induced air structure adopting the centrifugal wind wheel, the induced air structure adopting the axial flow wind wheel and a fresh air system are easier to install, the energy consumption is low, and the energy saving is facilitated.

In the above technical solution, the motor includes: the first axial flow wind wheel is sleeved on the crankshaft and is connected with the crankshaft; the induced air structure still includes: a second axial flow wind wheel, wherein a crankshaft passes through the second axial flow wind wheel, the first axial flow wind wheel is driven to rotate by a motor driving the crankshaft, and the crankshaft rotates relative to the second axial flow wind wheel; or the induced draft structure further includes: the second axial flow wind wheel is fixedly arranged on the supporting piece.

In this technical scheme, through setting up the second axial flow wind wheel, and when the motor drives the spindle, only drive first axial flow wind wheel and rotate, and the spindle rotates for the second axial flow wind wheel, the second axial flow wind wheel does not rotate along with the rotation of spindle promptly, make the second axial flow wind wheel for first axial flow wind wheel like this, be a quiet leaf in whole induced air structure, and first axial flow wind wheel is a movable vane, such structure is favorable to promoting the wind wheel pressure ratio, overcome the resistance of pipeline and air intake, promote the ventilation efficiency of induced air structure, satisfy the demand of indoor new amount of wind.

The first axial flow wind wheel is sleeved on the crankshaft and connected with the crankshaft, so that the crankshaft can drive the first axial flow wind wheel, and the first axial flow wind wheel becomes a movable blade in an induced air structure; the crankshaft penetrates through the second axial flow wind wheel and is only inserted with the second axial flow wind wheel, so that the second axial flow wind wheel cannot be driven when the crankshaft rotates, and the second axial flow wind wheel becomes a static blade in the wind inducing structure.

Similarly, the second axial flow wind wheel is fixedly arranged on the supporting piece instead of being sleeved on the crankshaft and can also be used as a static blade, and the first axial flow wind wheel is used as a movable blade; the first axial flow wind wheel and the second axial flow wind wheel are coaxially arranged.

In the above technical scheme, the number of the first axial flow wind wheels and the second axial flow wind wheels is multiple, and the first axial flow wind wheels and the second axial flow wind wheels are alternately distributed.

In this technical scheme, set up the quantity of first axial flow wind wheel and second axial flow wind wheel into a plurality ofly, and the distribution in turn is favorable to further promoting the wind wheel pressure ratio like this to promote the efficiency of taking a breath of induced air structure further, satisfy the demand of indoor fresh air volume better.

In any one of the above technical solutions, the air inlet side and the air outlet side of any one of the first axial flow wind wheels are respectively provided with a second axial flow wind wheel.

In the technical scheme, the air inlet side and the air outlet side of any one first axial flow wind wheel are respectively provided with a second axial flow wind wheel, so that the first axial flow wind wheel and the second axial flow wind wheels are favorably and alternately distributed, the wind wheel pressure ratio is improved, the ventilation efficiency is improved, the second axial flow wind wheels on the two sides of the first axial flow wind wheel can support the crankshaft, and the crankshaft drives the first axial flow wind wheels to rotate more stably and reliably.

In any of the above solutions, at least two second axial flow wind turbines are rotatably connected to the crankshaft by bearings.

In this technical scheme, pass through the bearing rotation through two at least second axial flow wind wheels and spindle and be connected, be favorable to promoting the smooth and easy degree of spindle rotation to promote first axial flow wind wheel pivoted smooth and easy degree, and then promote the efficiency of taking a breath of induced air structure, can also avoid second axial flow wind wheel and spindle direct contact and wearing and tearing spindle, reduce spindle life, can also form the support to the spindle through the bearing, promote spindle job stabilization nature and reliability.

In any one of the above technical solutions, the air inducing structure further includes: the air conditioner comprises a shell, wherein one end of the shell is provided with an air inlet, and the other end of the shell is provided with an air outlet; the first axial flow wind wheel, the second axial flow wind wheel and the motor are arranged in the shell.

In this technical scheme, through setting up the casing, and first axial flow wind wheel, second axial flow wind wheel and motor all set up in the casing, each part of induced air structure has all been integrated in the casing promptly, forms a whole, and the installation of induced air structure on new trend system of being convenient for like this is favorable to promoting the convenience of installation effectiveness and installation.

In the above technical scheme, the housing is provided with a first mounting structure, and the first mounting structure is used for mounting the housing.

In this technical scheme, through setting up first mounting structure, be favorable to promoting the convenience of induced air structure installation effectiveness and installation.

It is understood that the first mounting structure includes, but is not limited to, any one of a plug-in structure, a snap-in structure, a bolt-in structure, and a rivet-out structure.

In the above technical scheme, the air inlet and the air outlet are both provided with a first mounting structure.

In this technical scheme, all be equipped with first mounting structure in air intake and air outlet department, make the casing all have fixedly on two positions at least like this, be favorable to promoting stability and reliability after the induced air structure installation, reduce the possibility that the induced air structure drops.

In the technical scheme, the number of the first mounting structures is multiple, and the multiple first mounting structures at the air inlet are uniformly distributed along the air inlet; and/or the plurality of first mounting structures at the air outlet are uniformly distributed along the air inlet.

In this technical scheme, set up first mounting structure into a plurality ofly, and along air intake evenly distributed, and/or along air outlet evenly distributed, be favorable to induced air structure installation back atress dispersion and even to reduce because of local atress too big leads to the impaired phenomenon of induced air structure, prolong the life of induced air structure, still be favorable to promoting induced air structure job stabilization nature and reliability.

In the above technical solution, the first mounting structure is any one of a tenon, a buckle, a slot or a connector, and the tenon or the buckle extends outward from the surface of the housing.

In this technical scheme, the trip or buckle set up to extend to the outside by the surface of casing, simple structure, easily production and preparation, and simple to operate.

In the above technical scheme, the tenon or the buckle is an elastic part.

In this technical scheme, set up tenon or buckle into the elastic component, be favorable to the elastic deformation ability through the elastic component, promote the convenience of induced air structure installation.

The technical solution of the second aspect of the present invention provides a fresh air system, including: a fresh air duct; any one of above-mentioned first aspect's induced air structure locates in the new trend pipe, and the first mounting structure of induced air structure is used for being connected with the new trend pipe.

In the technical scheme, by adopting the air inducing structure of any one of the technical schemes, all beneficial effects of the technical scheme are achieved, and the description is omitted; through setting up the fresh air pipe, be convenient for hold the induced air structure to form the wind channel that the guide outdoor air got into indoor.

In the above technical scheme, a second mounting structure is arranged in the fresh air pipe, and the second mounting structure is used for being matched with the first mounting structure so as to mount the induced draft structure.

In this technical scheme, through set up second mounting structure in the fresh air duct to with first mounting structure adaptation, need not set up mounting structure temporarily like this, be favorable to promoting the convenience that induced air structure installed in the fresh air duct, and install the stability and the reliability of accomplishing back induced air structure work.

In the above technical scheme, the boss on the inner wall of second mounting structure for locating the new trend pipe, the boss is used for the joint between two first mounting structure.

In this technical scheme, set up the second mounting structure into the boss to the joint is between two first mounting structures, and such mounting means is simple, convenient operation, and is favorable to restricting the displacement of induced air structure, especially when two first mounting structures are located the air intake and the air outlet of induced air structure respectively, can restrict the ascending displacement of induced air structure along the new tuber pipe axial.

In the above technical solution, the boss is provided with a passage for accommodating the electric wire.

In the technical scheme, the channel for accommodating the electric wire is arranged in the boss, so that the space can be saved, the electric wire is convenient to connect with the motor, and the electric wire and a part in the induced draft structure can be prevented from being wound to cause faults.

In the technical scheme, the sound absorbing piece is arranged in the boss; or at least a part of the boss is made of a sound absorbing material.

In this technical scheme, inhale the sound piece or with at least partly setting up of boss for inhaling the sound material plastid through the setting, be favorable to reducing the noise of new trend system, promote the comfort level of environment.

In the above technical scheme, the new trend system still includes: the concentration detection sensor is arranged at an air outlet of the induced air structure and is used for detecting the concentration of carbon dioxide and/or fine particles; and the controller is electrically connected with the concentration detection sensor and is used for controlling the operation of the induced draft structure according to the concentration of the carbon dioxide and/or the fine particles.

In this technical scheme, through setting up concentration detection sensor to be connected with the controller, be favorable to like this according to the concentration condition of carbon dioxide and/or fine particles, set up the operating parameter of induced air structure in a flexible way, thereby promote the quality of taking a breath, and then promote the comfort level of indoor environment.

It is to be noted that fine particulate matter refers to particles having an aerodynamic equivalent diameter of less than or equal to 2.5 microns in the atmosphere, also known as respirable particles, commonly referred to as PM 2.5.

A third aspect of the present invention provides a control method for a fresh air system according to any one of the second aspect, including: acquiring an environmental parameter; and determining the rotating speed of the wind wheel in the fresh air system according to the environmental parameters.

In the technical scheme, the rotating speed of the wind wheel in the fresh air system is determined according to environmental parameters, namely the rotating speed of the wind wheel is flexibly set according to the environment condition, for example, when the air quality is poor, the rotating speed of the wind wheel is increased to improve the air exchange efficiency, so that the air quality is improved; and when the air quality is better, reduce the rotational speed of the wind wheel, thus reduce the energy consumption, save the energy.

In the above technical solution, the obtaining of the environmental parameter specifically includes: acquiring the concentration of carbon dioxide and/or the concentration of fine particles in the environment; determining a concentration interval in which the concentration of carbon dioxide and/or the concentration of fine particulate matter is located; and determining the rotating speed of the wind wheel according to the concentration interval of the carbon dioxide and/or the concentration of the fine particles.

In the technical scheme, the influence of the concentration of the carbon dioxide and/or the concentration of the fine particles on the air quality is large, so that the rotating speed of the wind wheel is determined according to the concentration interval where the concentration of the carbon dioxide and/or the concentration of the fine particles are located, and the ventilation quality is improved simply and directly.

In any one of the above technical solutions, the control method further includes: acquiring the variation trend of the environmental parameters; and adjusting the rotating speed of the wind wheel according to the variation trend.

In this technical scheme, according to the trend of change adjustment wind wheel rotational speed, be favorable to the new trend system to adapt to the environmental aspect more nimble, according to the change of environmental aspect, adjust the wind wheel rotational speed fast for when the environmental aspect worsens with higher speed, the new trend system can promote the wind wheel rotational speed fast, promotes the efficiency of taking a breath, reaches the purpose of automatic new trend, and when the environmental aspect improves, reduces the wind wheel rotational speed fast, reaches energy-conserving effect.

In the above technical solution, the obtaining of the variation trend of the environmental parameter specifically includes: acquiring the variation trend of the concentration of carbon dioxide and/or the variation trend of the concentration of fine particulate matters in the environment; determining whether the variation trend is within a preset range, and generating a judgment result; and determining the gear of the wind wheel according to the judgment result.

In the technical scheme, the gear of the wind wheel is determined by comparing the variation trend with the preset range, so that frequent adjustment of the rotating speed of the wind wheel when the variation trend is small can be reduced, the reduction of energy consumption is facilitated, and energy is saved.

An aspect of the fourth aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the control method according to any one of the above-mentioned third aspects.

In this technical solution, the steps of the control method according to any one of the first aspect are implemented when the computer program is executed by the processor, so that all the beneficial effects of the above technical solution are achieved, and details are not described herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic perspective exploded view of an air-inducing structure according to an embodiment of the present invention;

FIG. 2 is a schematic perspective exploded view of an air-inducing structure according to another embodiment of the present invention;

FIG. 3 is a schematic perspective view of a housing of an air-inducing structure according to an embodiment of the invention;

FIG. 4 is a schematic cross-sectional view of a fresh air system according to an embodiment of the present invention;

FIG. 5 is a schematic view of the installation of a fresh air system according to one embodiment of the present invention;

FIG. 6 is a schematic workflow diagram of a control method of one embodiment of the present invention;

FIG. 7 is a schematic workflow diagram of a control method of one embodiment of the present invention;

FIG. 8 is a schematic workflow diagram of a control method of one embodiment of the present invention;

fig. 9 is a schematic workflow diagram of a control method according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

10 induced draft structure, 100 motor, 102 crankshaft, 104 first axial flow wind wheel, 106 second axial flow wind wheel, 108 bearing, 110 casing, 112 tenon, 20 new wind pipe, 200 boss, 202 channel, 204 concentration detection sensor, 206 filter screen, 208 dust screen, and 30 indoor.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Some embodiments according to the invention are described below with reference to fig. 1 to 9.

As shown in fig. 1, an induced draft structure 10 according to an embodiment of the present invention includes: the wind driven generator comprises a motor 100 and a first axial flow wind wheel 104, wherein the motor 100 is provided with a crankshaft 102, the first axial flow wind wheel 104 is sleeved on the crankshaft 102 of the motor 100, and the motor 100 is used for driving the first axial flow wind wheel 104 so that the first axial flow wind wheel 104 drives air to realize ventilation.

In this embodiment, the axial flow wind wheel is adopted in the air inducing structure 10 to replace the centrifugal wind wheel, so that the volumes of the air inducing structure 10 and the fresh air system can be effectively reduced, the air inducing structure 10 and the fresh air system are easier to install and transport, and the power of the air inducing structure 10 can be reduced on the premise of keeping the same air volume, thereby reducing the energy consumption and saving the energy.

As shown in fig. 2, in the above embodiment, the wind inducing structure 10 further includes: a second axial flow wind wheel 106 rotatably sleeved on the crankshaft 102, that is, when the crankshaft 102 rotates, the second axial flow wind wheel 106 does not rotate, that is, the crankshaft 102 drives the first axial flow wind wheel 104 to rotate and simultaneously rotates relative to the second axial flow wind wheel 106; further, the number of the first axial flow wind wheels 104 and the second axial flow wind wheels 106 is multiple, and the first axial flow wind wheels 104 and the second axial flow wind wheels 106 are alternately distributed, wherein the first axial flow wind wheels 104 are used as movable blades, the second axial flow wind wheels 106 are used as static blades, when the motor 100 rotates, the movable blades rotate along with the crankshaft 102 of the motor 100, and the static blades do not rotate along with the crankshaft 102; bearing 108 is disposed between second axial flow rotor 106 and crankshaft 102 to ensure that second axial flow rotor 106 does not rotate with crankshaft 102, while crankshaft 102 smoothly rotates first axial flow rotor 104.

At both ends of the crankshaft 102, the second axial flow wind wheels 106 are provided, or at the air inlet and the air outlet of the induced draft structure 10, the second axial flow wind wheels 106 are provided, so that the bearing 108 of the second axial flow wind wheels 106 is convenient to form stable support for the crankshaft 102, and the working stability and reliability of the crankshaft 102 are improved.

In addition, in the above embodiment, a detent screw is provided in the middle of the crankshaft 102 to prevent the first axial wind turbine 104 and the second axial wind turbine 106 from moving in the axial direction of the crankshaft 102.

In this embodiment, the plurality of second axial flow wind wheels 106 and the plurality of first axial flow wind wheels 104 are arranged and alternately distributed to form a structure in which the stationary blades, the movable blades, the stationary blades and the movable blades are alternately distributed, which is beneficial to improving the wind wheel pressure ratio, overcoming the resistance of the pipeline and the air inlet, improving the ventilation efficiency of the induced draft structure 10, and meeting the requirement of indoor 30 fresh air volume.

In other embodiments, a second axial flow wind wheel 106 is respectively disposed on the air inlet side and the air outlet side of any one of the first axial flow wind wheels 104, so that the first axial flow wind wheels 104 and the second axial flow wind wheels 106 may be alternately distributed, or a plurality of second axial flow wind wheels 106 may be disposed between two first axial flow wind wheels 104, so that the second axial flow wind wheels 106 disposed on both sides of the first axial flow wind wheels 104 can support the crankshaft 102, and the crankshaft 102 drives the first axial flow wind wheels 104 to rotate more stably and reliably.

As shown in fig. 3, in any of the above embodiments, the wind inducing structure 10 further includes: a housing 110, wherein one end of the housing 110 is provided with an air inlet, and the other end of the housing 110 is provided with an air outlet; the first axial flow wind wheel 104, the second axial flow wind wheel 106 and the motor 100 are arranged in the shell 110, so that the induced draft structure 10 forms a whole body, the installation is convenient, and the installation efficiency and the installation convenience are improved.

Furthermore, a tenon 112 is arranged on the housing 110 as a first mounting structure for mounting the housing 110; specifically, a plurality of clamping tenons 112 are arranged at the air inlet and the air outlet, and the plurality of clamping tenons 112 at the air inlet are uniformly distributed along the air inlet; the plurality of first mounting structures at the air outlet are uniformly distributed along the air inlet; the latch 112 extends outward from the surface of the housing 110.

In this embodiment, the tenons 112 are disposed in a plurality of numbers, and are uniformly distributed along the air inlet and along the air outlet, so as to be beneficial to the distribution and uniformity of the stress after the air inducing structure 10 is installed, thereby reducing the phenomenon that the air inducing structure 10 is damaged due to the excessive local stress, prolonging the service life of the air inducing structure 10, and being beneficial to improving the working stability and reliability of the air inducing structure 10.

It will be appreciated that the latch 112 is an elastic member, which is advantageous to improve the convenience of installing the wind inducing structure 10 by the elastic deformability of the elastic member.

In other embodiments, a portion of the latch 112 may be disposed between the intake opening and the outtake opening, and one of the intake opening and the outtake opening may be provided with the latch 112.

In other embodiments, the first mounting structure is a substantially C-shaped plug for mating with a socket in a fresh air system; or the first mounting structure is any one of a clamping groove and a slot, and a buckle or a plug is correspondingly arranged in the fresh air system, or the first mounting structure is a buckle, a plug connector and the like.

In other embodiments, electric machine 100 is coupled to first axial wind rotor 104 to drive first axial wind rotor 104; the induced draft structure 10 further includes a support member, and the second axial wind wheel 106 is fixed on the support member, such that the second axial wind wheel 106 is always kept to be not rotated to be a stationary blade, and the first axial wind wheel 104 is rotated to be a movable blade, thereby increasing the pressure ratio of the induced draft structure 10. It is to be appreciated that first axial wind rotor 104 and second axial wind rotor 106 are coaxially disposed; in addition, the supporting element may be separately disposed in the wind inducing structure 10, and the supporting element may also be the casing 110 of the wind inducing structure 10, that is, the second axial wind wheel 106 is fixedly disposed on the inner wall of the casing 110 of the wind inducing structure 10.

As shown in fig. 4, an embodiment of the second aspect of the present invention provides a fresh air system, including: a fresh air duct 20; the air inducing structure 10 of any one of the embodiments of the first aspect is disposed in the fresh air duct 20, and the tenon 112 of the air inducing structure 10 is used for connecting with the fresh air duct 20; the inner wall of the fresh air pipe 20 is provided with a boss 200, and the boss 200 is used for being clamped between the two clamping tenons 112.

More specifically, the air inlet and the air outlet of the induced draft structure 10 are both provided with a plurality of tenons 112, and are uniformly distributed; the boss 200 is clamped between the clamping tenon 112 of the air inlet and the clamping tenon 112 of the air outlet, so that the displacement of the induced draft structure 10 along the axial direction of the fresh air duct 20 is limited.

It is understood that the boss 200 may be disposed along the circumferential direction of the fresh air duct 20 and extend along the axial direction of the fresh air duct 20; the boss 200 may also be only provided with a small segment along the circumferential direction of the fresh air duct 20 to save materials, and the tenons 112 are uniformly distributed along the circumferential direction of the air inlet or the air outlet, so that the induced draft structure 10 may be clamped with the boss 200 through the tenons 112 at different positions, thereby improving the convenience of installation.

Further, a channel 202 for accommodating the electric wire is provided on the boss 200, and at least a part of the boss 200 is a sound absorbing material body.

In other embodiments, a plurality of slots are provided on the fresh air duct 20 as the second mounting structure to mate with the latch 112.

In other embodiments, a slot is used as the first mounting structure on the air inducing structure 10 instead of the latch 112, and a plurality of latches 112 are provided on the fresh air duct 20 to fit the second mounting structure and the slot.

As shown in fig. 5, in any of the above embodiments, the fresh air system further includes: the concentration detection sensor 204 is arranged at the air outlet of the induced air structure 10, and the concentration detection sensor 204 is used for detecting the concentration of carbon dioxide and/or fine particles; and a controller electrically connected to the concentration detection sensor 204, wherein the controller is used for controlling the operation of the induced draft structure 10 according to the concentration of carbon dioxide and/or fine particles.

A filter screen 206 and a dust screen 208 are further arranged in the fresh air pipe 20 of the fresh air system, the filter screen 206 is arranged near an air inlet of the induced air structure 10, and the dust screen 208 is located on one side of the filter screen 206 far away from the induced air structure 10. Through the arrangement of the filter screen 206 and the dust screen 208, the air entering the room 30 can be purified, and the comfort level of the environment in the room 30 can be improved.

Through setting up concentration detection sensor 204 to be connected with the controller, be favorable to like this according to the concentration condition of carbon dioxide and/or fine particle thing, set up the operating parameter of induced air structure 10 in a flexible way, thereby promote the quality of taking a breath, and then promote the comfort level of indoor 30 environment.

As shown in fig. 6, an embodiment of the third aspect of the present invention provides a control method for the fresh air system according to any one of the embodiments of the second aspect, including: step S100: acquiring an environmental parameter; step S102: and determining the rotating speed of the wind wheel in the fresh air system according to the environmental parameters.

In the embodiment, the rotating speed of the wind wheel in the fresh air system is determined according to the environmental parameters, namely the rotating speed of the wind wheel is flexibly set according to the environmental conditions, for example, when the air quality is poor, the rotating speed of the wind wheel is increased to improve the air exchange efficiency, so that the air quality is improved; and when the air quality is better, reduce the rotational speed of the wind wheel, thus reduce the energy consumption, save the energy.

As shown in fig. 7, a control method according to another embodiment of the present invention includes: step S200: acquiring an environmental parameter at a first moment; step S202: determining the rotating speed of a wind wheel in a fresh air system according to the environmental parameters; step S204: acquiring an environmental parameter at a second moment; step S206: determining the change trend of the environmental parameters according to the environmental parameters at the first moment and the environmental parameters at the second moment; step S208: and adjusting the rotating speed of the wind wheel according to the variation trend.

In the above embodiment, adjust the wind wheel rotational speed according to the trend of change, be favorable to the new trend system to adapt to the environmental aspect more nimble, according to the change of environmental aspect, adjust the wind wheel rotational speed fast for when the environmental aspect worsens with higher speed, the new trend system can promote the wind wheel rotational speed fast, promotes the efficiency of taking a breath, reaches the purpose of automatic new trend, and when the environmental aspect improves, reduces the wind wheel rotational speed fast, reaches energy-conserving effect.

As shown in fig. 8, a control method according to another embodiment of the present invention includes: step S300: acquiring the concentration of carbon dioxide and/or the concentration of fine particulate matters in the environment at a first moment; step S302: determining a concentration interval in which the concentration of carbon dioxide and/or the concentration of fine particulate matter is located; step S304: determining the rotating speed of the wind wheel according to the concentration interval of the concentration of the carbon dioxide and/or the concentration of the fine particles; step S306: acquiring the concentration of carbon dioxide and/or the concentration of fine particulate matters in the environment at the second moment; step S308: determining a change value of the concentration of the carbon dioxide and/or a change value of the concentration of the fine particulate matter according to the concentration of the carbon dioxide and/or the concentration of the fine particulate matter at the first time and the concentration of the carbon dioxide and/or the concentration of the fine particulate matter at the second time; step S310: comparing the change value with a preset change range and generating a comparison result; step S312: and adjusting the gear of the rotating speed of the wind wheel according to the comparison result.

In the embodiment, the variation trend can be reflected by the variation value, the variation trend is larger when the variation value is larger, which indicates that the difference between the environmental parameters at the first moment and the environmental parameters at the second moment is large, the gear of the rotating speed of the wind wheel needs to be adjusted in time, and the gear of the wind wheel is determined by comparing the variation value with the preset range, so that frequent adjustment of the rotating speed of the wind wheel when the variation trend is smaller can be reduced, the reduction of energy consumption is facilitated, and energy is saved.

Further, the present embodiment determines the variation of the environmental parameter by obtaining the variation trend of the concentration of the carbon dioxide and/or the variation trend of the concentration of the fine particulate matter, and of course, the environmental parameter is not limited to the concentration of the carbon dioxide and/or the concentration of the fine particulate matter, and may also include the concentrations of other pollutants, such as sulfur dioxide, formaldehyde, radon, etc., which are only exemplified by the above two.

It should be noted that carbon dioxide and fine particulate matter can be detected, determined, or both separately and together.

Table 1 shows the correspondence between the concentration of carbon dioxide and/or fine particulate matter and the gear and the rotational speed of the fan.

Table 1:

interval of concentration	0％～30％	31％～60％	61％～100％
				Wind wheel gear	1 gear	2 keeps off	3 grade
Rotational speed of wind wheel	100 rpm	200 rpm	300 revolutions per minute

The following description will be given by taking carbon dioxide as an example.

When the concentration of the obtained carbon dioxide is 40% at the first moment and is within the range of 31% -60%, the gear of the wind wheel is determined to be 2, and the rotating speed is 200 r/min;

the concentration of the carbon dioxide obtained at the second time is 65%, which is increased by 25% relative to the concentration of the carbon dioxide obtained at the first time; the preset variation range is 20% -40%, the variation value is within the preset variation range, and the rotating speed gear of the wind wheel does not need to be adjusted; if the concentration of the carbon dioxide acquired at the second moment is 85%, the concentration of the carbon dioxide acquired at the first moment is increased by 45% relative to the concentration of the carbon dioxide acquired at the first moment, and the concentration of the carbon dioxide acquired at the second moment exceeds a preset variation range, the rotating speed of the wind wheel needs to be increased to a gear 3.

It should be noted that the variation value is a difference value obtained by subtracting the concentration at the first moment from the concentration at the second moment, and may be a negative value.

The sum of the concentrations of carbon dioxide and fine particulate matter will be described as an example.

When the sum of the concentrations of the carbon dioxide and the fine particles is 35% and is within the range of 31% -60%, the gear of the wind wheel is determined to be 2, and the rotating speed is 200 rpm;

the sum of the concentrations of the carbon dioxide and the fine particulate matters obtained at the second moment is 45%, and is increased by 10% relative to the sum of the concentrations of the carbon dioxide and the fine particulate matters obtained at the first moment; if the preset variation range is 20% -40%, the variation value is lower than the preset variation range, and the rotating speed gear of the wind wheel can be reduced, namely the rotating speed gear of the wind wheel is reduced to 1 gear; if the sum of the concentrations of the carbon dioxide and the fine particulate matters acquired at the second moment is 15%, the sum is reduced by 30% relative to the sum of the concentrations of the carbon dioxide and the fine particulate matters acquired at the first moment, or the change value of the sum of the concentrations is-30%, the sum is a negative value and is smaller than a positive value, so that the change value of the sum of the concentrations is considered to be lower than a preset change range, and the rotating speed of the wind wheel can be reduced to the gear 1.

It will be appreciated that when the concentrations of carbon dioxide and fine particulate matter are considered together, the sum of the concentrations is not limited to be considered, and a certain ratio may be set for comprehensive consideration, especially when there are more contaminants. For example, a comprehensive pollution concentration is set, in which the proportion of carbon dioxide is 70% and the proportion of fine particulate matter is 30%; when the concentration of the detected carbon dioxide is 40% and the concentration of the fine particulate matter is 50%, the comprehensive pollution concentration is 43% between 40% x 70% + 50% x 30%; and determining the gear of the wind wheel to be 3 gears and 200 revolutions per minute when the comprehensive pollution concentration is within the range of 31-60%.

It should be noted that the above-mentioned numerical values and range divisions are only used for explaining the control method of the present embodiment, so as to facilitate understanding, and do not have any substantial limiting effect on the control method of the present invention.

An embodiment of the fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, realizes the steps of the control method according to any one of the embodiments of the third aspect.

In this embodiment, the steps of the control method in any one of the embodiments of the first aspect are implemented when the computer program is executed by the processor, so that all the beneficial effects of the embodiments are achieved, and details are not described herein.

According to the detachable induced air structure of a specific embodiment that this application provided, adopt the axial compressor wind wheel scheme to replace centrifugal wind wheel, with the new trend modularization alone, the user can select the installation or not install.

The method is characterized in that:

the induced air structure adopts multistage axial flow wind wheel, adopts the mode that movable vane + quiet leaf matches, promotes the wind wheel pressure ratio, can realize small, big pressure ratio, overcomes pipeline and import resistance, satisfies indoor fresh air volume demand, and wherein, first axial flow wind wheel is the movable vane, and second axial flow wind wheel is quiet leaf.

A driving mode: the high-speed motor is adopted to drive the movable blades to rotate, the fixed blades are fixed, holes are formed in the center of the fixed blades, a shaft of the motor penetrates through the fixed blades but is not connected with the fixed blades, and bearings are arranged on the fixed supports of the fixed blades at the air inlet and the fixed blades at the air outlet so as to ensure the stable operation of the motor.

The assembly mode is as follows: the middle part of the crankshaft of the motor is provided with a clamping screw to prevent the wind wheel from moving back and forth, the multistage axial flow wind wheel is fixed on the shell through the inlet and outlet static blades, the shell is provided with a clamping tenon structure, a part of hard tubes are arranged on the fresh wind pipe corresponding to the assembly, the inner part of the hard tube is provided with a bulge with the same length as the existing induced air structure, the induced air structure is only required to be pressed into the hard tube during assembly, and the axial displacement of the fresh wind pipe in the operation process can be prevented.

The control method of the present embodiment is as follows:

based on the multistage axial flow induced air structure, the rotating speed of the induced air structure is controlled by detecting the concentration of indoor fine particles and carbon dioxide, and the rotating speed of the induced air structure is adjusted by evaluating the variation trend of the concentration of the indoor fine particles and the carbon dioxide, so that the effects of automatic fresh air and energy conservation are achieved.

As shown in fig. 9, the specific workflow is as follows: step S400: detecting the concentration of carbon dioxide and fine particles in the room; step S402: determining the intervals of the concentrations of the carbon dioxide and the fine particulate matters, and if the concentrations are lower than the first interval, executing the step S410; step S404: if the concentration is in the first interval, determining the rotating speed of the wind wheel as a first rotating speed, and executing step S410; step S406: if the concentration is in the second interval, determining the rotating speed of the wind wheel to be a second rotating speed, and executing the step S410; step S408: if the concentration is in the third interval, determining the rotating speed of the wind wheel to be a third rotating speed, and executing the step S410; step S410: detecting the variation trend of the concentrations of carbon dioxide and fine particles; step S412: if the concentration change exceeds a preset range, the rotating speed of the wind wheel is increased by one step upwards; step S414: if the concentration change is within the preset range, the rotating speed of the wind wheel is unchanged; step S416: if the concentration change is lower than the preset range, the rotating speed of the wind wheel is reduced by one step downwards.

The first interval is smaller than the second interval, and the second interval is smaller than the third interval; the first rotation speed is less than the second rotation speed, and the second rotation speed is less than the third rotation speed.

By adopting the control method of the fresh air system in the flow, the rotating speed of the induced air structure can be adjusted according to the variation trend of the concentrations of the carbon dioxide and the fine particulate matters, so that the effects of automatic fresh air and energy conservation are achieved.

The technical scheme of the invention is explained in detail in the above with the accompanying drawings, and by the technical scheme of the invention, the volume of an induced air structure and a fresh air system is effectively reduced, the energy consumption is reduced, the energy is saved, and the operation of the fresh air system can be automatically controlled according to the concentration and the change of pollutants.

In the present invention, the terms "first", "second", are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An induced draft structure, comprising:

a motor;

the first axial flow wind wheel is connected with the motor and used for driving air,

wherein the motor is used for driving the first axial flow wind wheel.

2. The structure of claim 1,

the motor includes: the first axial flow wind wheel is sleeved on the crankshaft and is connected with the crankshaft;

the induced draft structure still includes:

a second axial flow rotor through which the machine shaft passes,

wherein the motor drives the crankshaft to rotate the first axial wind wheel, and the crankshaft rotates relative to the second axial wind wheel; or

The induced draft structure still includes:

the second axial flow wind wheel is fixedly arranged on the supporting piece.

3. The structure of claim 2,

the number of the first axial flow wind wheels and the number of the second axial flow wind wheels are multiple, and the first axial flow wind wheels and the second axial flow wind wheels are distributed alternately.

4. The structure of claim 2 or 3,

and the air inlet side and the air outlet side of the first axial flow wind wheel are respectively provided with one second axial flow wind wheel.

5. The structure of claim 2 or 3,

at least two of the second axial flow wind turbines are rotatably coupled to the crankshaft via bearings.

6. The structure of claim 2 or 3, further comprising:

the air conditioner comprises a shell, wherein one end of the shell is provided with an air inlet, and the other end of the shell is provided with an air outlet;

the first axial flow wind wheel, the second axial flow wind wheel and the motor are arranged in the shell.

7. The structure of claim 6,

the shell is provided with a first mounting structure, and the first mounting structure is used for mounting the shell.

8. The structure of claim 7,

the air inlet and the air outlet are respectively provided with the first mounting structure.

9. The structure of claim 8,

the number of the first mounting structures is multiple, and the multiple first mounting structures at the air inlet are uniformly distributed along the air inlet; and/or

The first mounting structures at the air outlet are uniformly distributed along the air inlet.

10. The structure of claim 7,

the first mounting structure is any one of a clamping tenon, a clamping buckle, a clamping groove and a plug connector.

11. The structure of claim 10,

the tenon or the buckle is an elastic piece.

12. A fresh air system, comprising:

a fresh air duct;

the air-inducing structure of any one of claims 1-11, disposed within the fresh air duct, the first mounting structure of the air-inducing structure for connection to the fresh air duct.

13. The fresh air system of claim 12,

and a second mounting structure is arranged in the fresh air pipe and is used for being matched with the first mounting structure so as to mount the air inducing structure.

14. The fresh air system of claim 13,

the second mounting structure is a boss arranged on the inner wall of the fresh air pipe, and the boss is used for being clamped between the two first mounting structures.

15. The fresh air system of claim 14,

the lug boss is provided with a channel for accommodating an electric wire.

16. The fresh air system of claim 14,

a sound absorbing piece is arranged in the boss; or

At least a part of the boss is a sound absorbing material body.

17. The fresh air system of claim 12 further comprising:

the concentration detection sensor is arranged at an air outlet of the induced air structure and is used for detecting the concentration of carbon dioxide and/or fine particles;

and the controller is electrically connected with the concentration detection sensor and is used for controlling the operation of the induced draft structure according to the concentration of the carbon dioxide and/or the fine particles.

18. A control method for the fresh air system as claimed in any one of claims 12 to 17, comprising:

acquiring an environmental parameter;

and determining the rotating speed of the wind wheel in the fresh air system according to the environmental parameters.

19. The control method according to claim 18,

the acquiring of the environmental parameters specifically includes:

acquiring the concentration of carbon dioxide and/or the concentration of fine particles in the environment;

determining a concentration interval in which the concentration of carbon dioxide and/or the concentration of fine particulate matter is located;

and determining the rotating speed of the wind wheel according to the concentration interval of the carbon dioxide and/or the concentration of the fine particles.

20. The control method according to claim 18 or 19, characterized by further comprising:

acquiring the variation trend of the environmental parameters;

and adjusting the rotating speed of the wind wheel according to the variation trend.

21. The control method according to claim 20,

the acquiring the variation trend of the environmental parameter specifically includes:

acquiring the variation trend of the concentration of carbon dioxide and/or the variation trend of the concentration of fine particulate matters in the environment;

determining whether the variation trend is within a preset range, and generating a judgment result;

and determining the gear of the wind wheel according to the judgment result.

22. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the control method according to any one of claims 18-21.