CN111089383A

CN111089383A - Fresh air device and fresh air service system

Info

Publication number: CN111089383A
Application number: CN201811233436.XA
Authority: CN
Inventors: 沈全文
Original assignee: Suzhou Nutak Environment Technology Co ltd
Current assignee: Suzhou newtak purification Service Co.,Ltd.
Priority date: 2018-10-23
Filing date: 2018-10-23
Publication date: 2020-05-01

Abstract

The invention provides a fresh air device and a fresh air service system. The fresh air device comprises an outdoor unit arranged outdoors, an air filtering device arranged indoors, a connecting assembly and a control assembly. The air filtering device comprises a filter element identification module. The control assembly comprises a controller and a filter element identity recognizer, the filter element identity recognizer can read filter element identity in the filter element identity module and deliver the filter element identity to the controller after the air filtering device is assembled with the connecting assembly, the controller allows the motor in the fan in the outer machine to normally operate when the read filter element identity is confirmed to be authorized to use, and the controller prohibits the motor in the fan in the outer machine from normally operating when the read filter element identity is confirmed to be unauthorized to use. Thus, a non-genuine cartridge carrier device cannot be used properly.

Description

Fresh air device and fresh air service system

Technical Field

The invention relates to the technical field of air purification, in particular to a fresh air device and a fresh air service system.

Background

The rapid development of the existing economy greatly meets the material requirements of residents, can bring serious environmental pollution at the same time, and is mainly reflected in air pollution, water pollution and soil pollution. Especially, the air pollution is particularly remarkable in the years, and the haze is frequent and even seriously harms the physical health of residents. In order to improve the indoor air quality of families, offices and the like, various types of fresh air devices are provided, and filtered clean fresh air is introduced into the rooms in a ventilation mode to supplement oxygen, so that the comfort degree of living spaces is improved, and the content of pollutants in the air is reduced.

The common fresh air devices on the market at present are roughly divided into two types: wall-hanging new trend device and suspension type new trend device. Wall-hanging new trend device: the fresh air device is installed on a wall, and the ventilation hole is arranged by punching a hole on the wall, so that the fresh air device has the advantages of small volume, convenience in installation, convenience in filter element replacement and low noise; the disadvantages are small purifying area, each 30-40 square meters, large volume, hanging on the wall and occupying large space, which is only suitable for families or small-sized fields. Suspension type new trend device: the ceiling type fresh air device is to hang a fresh air fan on a roof, a pipeline extends to each room through corners of wall feet and the like, or the roof is provided with the pipeline and is perforated, and the ceiling type fresh air device has the advantages that the purification area is large, and the air purification requirement of the whole house can be met through reasonable pipeline design and installation; the defects are that the device is suitable for unfinished blank rooms, the installation is complex, the device needs professionals to design and install, the time is long, the interior of a pipeline is dirty, the pipeline is difficult to clean, and the device cannot be replaced.

At present, a split type fresh air device is also available on the market, but an unsatisfactory place also exists. Generally speaking, the fresh air device in the prior art has at least the following problems in whole or in part:

1. the traditional fresh air device is difficult to achieve a balance in terms of purification effect, purification area, product volume and noise generated by the product, namely the traditional fresh air device is good in purification effect and large in purification area, preferably adopts glass fiber filter paper, is good in purification effect, but is large in wind resistance, and needs to use a high-power fan, and the high-power fan inevitably causes the product volume and the generated noise to be very large; when a product with low noise or small volume is required, a low-power fan is needed, the fan is only suitable for chemical fiber filter paper and is not suitable for glass fiber filter paper, and the influence caused by the low-power fan is poor purification effect or small purification area;

2. the traditional wall-mounted fresh air device has the increasingly poor purification effect along with the use time, so that the filter screen needs to be replaced in a short time, the operation of replacing the filter screen is troublesome, the materials are wasted, and the cost is high;

3. the interior and the surface of the inner machine of the traditional wall-mounted fresh air device or split fresh air device are very dirty after being used or stopped for a period of time, the interior is not easy to clean, and the purified clean air is easy to cause secondary pollution when being released into the air by the inner machine; although the surface of the machine body is easy to clean, the surface is easy to age and dirty with the lapse of time and is not beautiful; and so on.

The volume of the traditional wall-mounted fresh air device or split type fresh air device is still larger, and a large space of a wall body needs to be occupied. The filter core sets up in the interior machine, from the product production angle, also needs two at least main parts, removable filter core and interior casing promptly, need to open a plurality of moulds, and production, installation, maintenance are all inconvenient, and the cost is also high. After installing traditional wall-hanging new trend device or split type new trend device, if the user is unsatisfied to its outward appearance, want an ideal outward appearance, need whole change new trend device, perhaps change the interior machine of new trend device at least, do so and need very high cost, the operation is also troublesome.

Therefore, although the technology of the product of the fresh air device is seemingly mature, with the increasing air quality requirements of consumers, how to design a new fresh air device and a new air service system to overcome some or all of the problems in the prior art is still a very worthy technical problem in the field.

Disclosure of Invention

One of the objectives of the present invention is to provide a fresh air device, which can identify the air filtering device, so as to ensure that the unauthorized air filtering device cannot be used normally.

Another objective of the present invention is to provide a fresh air service system, which can identify the identity of an air filter device, thereby ensuring that an unauthorized air filter device cannot be used normally.

In order to achieve the above object, according to one aspect of the present invention, the present invention provides a fresh air device, which includes an outdoor unit disposed outdoors, an air filtering device disposed indoors, a connecting assembly, and a control assembly, wherein a fan is disposed in the outdoor unit, and the fan includes a motor. Coupling assembling's one end with outer machine links to each other, coupling assembling's the other end links to each other with air filter, coupling assembling's pipeline intercommunication outer machine with air filter, air filter includes that the filter core bears the device, installs filter core and filter core identity module in the filter core bears the device, the filter core bears the device and includes treats air-purifying air intake and air-purifying air outlet. The control assembly comprises a controller and a filter element identity recognizer, and the filter element identity recognizer can read the filter element identity in the filter element identity module and deliver the filter element identity to the controller after the air filtering device is assembled with the connecting assembly. The controller allows the motor in the fan to normally operate when the read filter element identification is confirmed to be authorized to use, and prohibits the motor in the fan from normally operating when the read filter element identification is confirmed to be unauthorized to use.

According to another aspect of the invention, the fresh air service system comprises a server, wherein the server is used for sending control information to a plurality of fresh air devices through a communication network, receiving and storing switch information of a motor, gear information of the motor, upcoming expiration reminding state information and/or locking state information uploaded by each fresh air device, and receiving and storing a filter element identification of an air filtering device used in cooperation with each fresh air device uploaded by each fresh air device.

Compared with the prior art, the controller of the fresh air device allows the motor in the fan to normally operate when the read filter element identity is confirmed to be authorized to use, and prohibits the motor in the fan from normally operating when the read filter element identity is confirmed to be unauthorized to use, so that the unauthorized air filtering device can not be normally used to prevent counterfeiting or pirating.

Drawings

FIG. 1 is an overall schematic view of a fresh air device according to an embodiment of the present invention.

Fig. 2 is an overall exploded view of the fresh air device of fig. 1.

Fig. 3 is an indoor schematic view of the fresh air device in fig. 1.

Fig. 4 is a schematic sectional view of the fresh air device of fig. 1 installed on a wall.

Fig. 5 is an exploded view of an integrated internal modular filter cartridge of the fresh air device of the present invention in one embodiment.

Fig. 6 is a schematic front and back view of a connection base plate of the fresh air device in the present invention.

Fig. 7 is a schematic view of wires wound on a wire arrangement groove of a connection base plate of the fresh air device.

Fig. 8 is a schematic view of another installation mode of the connection bottom plate and the connection pipe of the fresh air device.

Fig. 9 is an exploded view of an outdoor unit of the fresh air device according to the present invention.

FIG. 10 is a block diagram of the control components of the fresh air device according to the present invention;

FIG. 11 is a perspective view of a portion of the components of the control assembly from a different perspective;

fig. 12 shows a perspective exploded view of a part of the components of the control assembly.

FIG. 13 is a block diagram of a fresh air service system of the present invention in one embodiment.

Detailed Description

The detailed description of the invention generally describes structures, shapes, procedures, steps, logic blocks, processes or other symbolic representations of operations that directly or indirectly simulate the operation of the aspects of the invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. And the invention may be practiced without these specific details. Those skilled in the art will be able to utilize the description and illustrations herein to effectively introduce other skilled in the art to their working essence. In other instances, well known techniques have not been described in detail in order not to obscure the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

The following further describes embodiments of the present invention with reference to the accompanying drawings.

Some of the reference numbers are:

1. an integrated internal machine type filter element (air filter device); 2. connecting the bottom plate; 3. a connecting pipe; 4. an outdoor unit; 5. a control component; 6. a wall body; 7. an electric wire; 8. a connecting assembly;

101. a front cover of the filter element; 102. an outer net; 103. a filter element; 104. an inner net; 105. a filter element rear cover; 106. a fluid director; 107. a wind scooper; 108. a sound-deadening sponge; 109. a first light transmission hole group; 110. a second light transmission hole group; 111. a light guide pillar; 112. an inner mask; 113. an outer mask; 114. an air inlet for air to be purified; 115. an air outlet for purifying air; 116. a cartridge carrying device; 117. an air buffer chamber; 118. a hemispherical integrated inner machine type filter element; 119. an outer mesh enclosure; 120. a filter element cover plate;

201. an air inlet and an air outlet; 202. a first annular projection; 203. a first annular recess; 204. a second annular boss; 205. a second annular recess; 206. a clamping part; 207. a rubber seal ring; 208. a first group of holes; 209. a second group of holes; 210. arranging wire grooves; 211. protecting the screw; 212. a bolt;

401. an outer casing of the outdoor unit; 402. a volute; 403. mounting a plate; 404. a top cover; 405. filtering with a screen; 406. a volute upper plate; 407. a volute side; 408. a volute lower plate; 409. a fan; 410. a fan mounting plate; 411. An air inlet of an external machine; 412. a shock pad; 413. a boss; 414. a drainage groove; 415. an outdoor unit side panel;

501. a front housing; 502. a rear housing; 503. a microswitch; 504. a button; 505. and an indicator light.

The invention provides a novel fresh air device. Fig. 1 is an overall schematic view of a fresh air device according to an embodiment of the present invention, and fig. 2 is an overall exploded schematic view of the fresh air device shown in fig. 1. Fig. 3 is an indoor schematic view of the fresh air device in fig. 1. Fig. 4 is a schematic sectional view of the fresh air device of fig. 1 installed on a wall.

As shown in fig. 1 to 4, the fresh air device includes an air filter device 1 disposed indoors, a connection assembly 8, an outdoor unit 4 disposed outdoors, and a control assembly (not labeled). One end of the connecting assembly 8 is connected with the outer machine 4, the other end of the connecting assembly 8 is connected with the air filtering device 1, and a pipeline of the connecting assembly 8 is communicated with the outer machine 4 and the air filtering device 1. The air filter device 1 comprises a filter element bearing device and a filter element 103 arranged in the filter element bearing device, wherein the filter element bearing device comprises an air inlet to be purified and an air outlet to be purified. A fan is arranged in the outer machine 4 and comprises a motor. Outdoor air passes through the pipeline in coupling assembling 8 in proper order via the drive of fan the filter core bears device treat air purification air intake, filter core 103 the filter core bears device's air-purifying outlet back gets into indoor. The control assembly is used for controlling the fresh air device.

Air filter device 1

Fig. 5 shows a preferred embodiment of the air filter device 1 of the fresh air device according to the present invention. As shown in fig. 5, the air filtering device 1 is an integrated internal-type filter element, the integrated internal-type filter element 1 includes a filter element bearing device and a filter element 103 installed in the filter element bearing device, the filter element bearing device includes an air inlet to be purified and an air outlet to be purified, and the filter element bearing device is detachably and hermetically connected with the connecting assembly 8.

With combined reference to fig. 4 and 5, the filter element support device of the integrated internal filter element is cylindrical and is composed of a filter element front cover 101, a filter element rear cover 105, an external net 102 and an internal net 105. The filter element front cover 101 is arranged on one side far away from a wall body, the filter element rear cover 105 is arranged on one side close to the wall body, the filter element rear cover is provided with a buckle component which is matched with an air inlet to be purified and is matched with the connecting assembly 8 (the buckle component can be arranged on the edge of the filter element rear cover 105 and also can be arranged on the edge of the filter element rear cover 105 with the air inlet to be purified), the outer net 101 and the inner net 104 are arranged between the filter element front cover 101 and the filter element rear cover 105, the filter element 103 is arranged between the inner net and the outer net, one side of the filter element 103 is adhered to the filter element rear cover 105 by glue, the other side is adhered to the filter element front cover 101 by the glue, an air buffer chamber is formed by the inner net 105 and one part of the filter element front cover 101 in the filter element bearing device, the air buffer chamber is communicated with the. The structure of the filter element bearing device in the preferred embodiment is extremely simple, and the extremely simple design ensures that the filter element bearing device is simple to install and replace (only the integrated inner-type filter element needs to be simply rotated), reduces the manufacturing procedures, reduces the manufacturing cost and reduces the volume and the thickness of the integrated inner-type filter element; simultaneously because it is provided with the filter core protecgulum, the filter core protecgulum can set up different patterns, when the user is unsatisfied to present new trend device's outward appearance, wants every season to change corresponding theme outward appearance, perhaps changes the year of birth outward appearance corresponding with the year of birth, perhaps changes into the cartoon outward appearance that children liked, only needs simple change filter core, just can possess the new trend device of an ideal outward appearance, easy operation, low cost.

Traditional new trend device air current can strike the inner wall perpendicularly after getting into indoor machine from outdoor, produces the sinuous flow, leads to the air current not in order, reduces the amount of wind, and increases extra noise, for solving above-mentioned problem: (1) a flow deflector 106 can be arranged in the air buffer chamber of the integrated internal-type filter element in the embodiment, wherein the flow deflector 106 comprises a flow deflector 107 with a structure similar to a nipple shape or a cone shape, and the flow deflector can play a role in flow guiding and noise reduction; meanwhile, in order to further reduce noise, a plurality of small holes or strip-shaped holes can be arranged on the surface of the guide plate 107, and a silencing material (which can be a silencing sponge 108) is arranged inside the guide plate; (2) the position of the air buffer chamber of the integrated internal machine type filter element in the embodiment can be provided with a silencing material or a primary filter screen, or the silencing material and the primary filter screen are combined, of course, the position of the internal net can be properly adjusted or increased, for example, the primary filter screen or the silencing material is placed in the air buffer chamber, and the original internal net is arranged at the air inlet of the air to be purified; or a primary filter screen or a silencing material is placed in the air buffer chamber, and an inner net and the like are arranged at the air inlet of the air to be purified.

The filter element 103 in the integrated inner machine type filter element is formed by multiple folding of glass fiber filter paper. Generally, a household fresh air device or a purifier adopts a low-power fan in consideration of balance of fan noise, purified air volume and purification effect, and a certain air volume is required to be achieved, so that a chemical fiber filter element is generally used. Because the chemical fiber filter element has small wind resistance, air is easy to penetrate, but the chemical fiber filter element has the defects that the purification effect is gradually reduced along with the increase of the service time, the effective service time of the filter element is short, the filter element replacement frequency is high, and the use cost is high. The glass fiber filter element is generally used industrially, has large wind resistance, is not easy to penetrate air, but has the purification effect which cannot be reduced along with the increase of the service time, but the wind resistance can be slightly increased along with the increase of the service time. This embodiment is big in order to reach the purification amount of wind, purifying effect is good, the three excellent effects that equipment noise is low, break through conventional civilian new trend device design thinking, the components of a whole that can function independently design of fine filter core of glass and interior external machine has been adopted, set up the fan outdoor, be about to the separation of the source of a noise at outdoor, in addition coupling assembling has adopted the amortization technique of making an uproar, consequently can adopt high-power fan, produce bigger amount of wind and bigger wind and press to pierce through the fine filter core of glass, purifying effect can not reduce along with the increase of live time, filter core life more. Simultaneously because the glass fiber filter core is easy to be damaged, the outer net, the intranet, the mesh enclosure in the outer wire gauze cover and the like that relate to in this embodiment set up the net that has certain structural strength at the glass fiber filter core outlying (can be stainless steel net, plastics net etc.), prevent that the user from holding the glass fiber filter core of destroying the inside when grabbing integrated internal unit formula filter core.

One of the important improvements of the air filtering device adopted by the invention compared with the prior art is that the conventional design mode of 'inner casing + filter element + inner casing and wall connection' in the industry is cancelled, the invention innovatively improves the structure of the traditional filter element, so that the filter element is provided with the filter element bearing device and can be directly connected with the connecting component of the fresh air device in a sealing way, and further, the filter element bearing device is detachably connected. The invention relates to an integrated internal machine type filter element which is designed by combining a traditional filter element and an internal machine into a whole, wherein the integrated internal machine type filter element consists of a filter element and a filter element bearing device, the filter element is fixedly arranged in the filter element bearing device, the filter element bearing device is provided with an air inlet to be purified and an air outlet to be purified, the filter element bearing device is detachably and hermetically connected with a connecting assembly, and the air outlet to be purified of the connecting assembly is communicated with the air inlet to be purified of the filter element bearing device. And the purified air outlet of the filter element bearing device of the integrated internal machine type filter element is directly communicated with the indoor, namely, the air is directly emptied after being filtered by the filter element.

This embodiment new trend device adopts the split type design of interior outer quick-witted, and the outer machine that is provided with the fan is put outdoors, and the interior style filter core of integration is put indoor, and middle coupling assembling couples together interior style filter core of integration and outer machine, and outer machine is fixed outdoors by coupling assembling. In order to improve the purification effect, the invention can adopt a high-power fan, and the fan is placed outdoors for silencing, and meanwhile, a silencing pipe can be arranged in the connecting component. The indoor integrated internal machine type filter element is provided with the filter screen, even glass fiber filter paper is used, so that the effect of wind penetrating through the glass fiber filter paper is sufficient by using a high-power fan, the purifying area is large, the purifying effect is good, and the indoor noise is low; finally, because only one integrated internal machine type filter element exists in the room, the indoor air conditioner is small in size, small in occupied space and attractive in appearance.

This embodiment new trend device's the interior style filter core of integration, interior machine and filter core integration are the interior machine promptly, also are the filter core, have played combined action between them: the integrated internal machine type filter element is arranged indoors, is a main component which can be observed indoors by a user, and is equivalent to an internal machine of the fresh air device; however, the integrated internal machine type filter element is mainly the filter element, can be thrown or can be replaced regularly, and is detachably connected with the connecting component in a sealing way. The detachable connection can be of a buckle type, a bolt and screw type or a spiral type, the sealing can be arranged at the connection position, the connection position of the air inlet of the air to be purified of the connecting assembly air outlet and the filter element bearing device can be arranged at the connection position, and the connecting structure enables the air to be conveniently detached, installed or replaced. Furthermore, due to sealing, outdoor air completely enters the air inlet to be purified of the filter element bearing device from the air outlet of the connecting assembly, and dirty air (unpurified air) is prevented from directly entering the room through a gap. The filter core bears the direct and indoor intercommunication of device's air-purifying outlet, and the air after purifying passes through the filter core promptly and bears the direct release of device's air-purifying outlet and to indoor, avoids the clean air of purification to lead to secondary pollution through other places (for example the pipeline of interior casing or conventional new trend device) again. Meanwhile, the design simplifies the component structure, omits the shell of the original inner machine, reduces the manufacturing process, reduces the manufacturing cost, has smaller volume than the original inner machine, is thinner, just like a picture or a photo frame hung on a wall, only occupies a little space on the wall, and has beautiful effect. Furthermore, the disposable design of the integrated inner machine type filter element does not need to clean the inner machine regularly, and a user only needs to simply replace the integrated inner machine type filter element, so that a brand-new inner machine and a clean filter element are provided, and the user experience is better.

Connecting assembly 8

As shown in fig. 2, the connection assembly 8 of the fresh air device of the present embodiment may include a connection pipe 3 and a connection part 2, and the connection assembly 8 is connected to the air filter device 1 through the connection part 2. The connecting part 2 may be a screw connection structure connecting the ends of the base plate, the connecting bracket or the connecting assembly, etc.

In this embodiment, as shown in fig. 2 and 4, the connection member 2 is a connection base plate, the connection base plate 2 is disposed indoors, one end of the connection base plate 2 is connected to the connection pipe 3 through a fastener (e.g., a bolt), and the other end of the connection base plate 2 is detachably and hermetically connected to the integrated internal machine type filter element 1.

Fig. 6 is a schematic front and back view of the connection base plate 2 of the fresh air device of the present invention. As shown in fig. 6, the connection base plate 2 includes an air inlet/outlet 201, a first annular protrusion 202, a first annular recess 203, a second annular protrusion 204, a second annular recess 205, a clamping portion 206, a rubber seal 207, a first hole group (208), a second hole group 209, a wire arrangement groove 210, and a screw guard 211.

Fig. 7 is a schematic view of the reverse structure of the connection base plate 2 of the fresh air device in this embodiment. Because the cable in the fresh air device needs to pass through the connecting pipe 3 and needs to be set to a relatively long length to adapt to walls with different thicknesses, the cable management groove 210 is preferably arranged on the back of the connecting bottom plate 2. The wire winding space is reserved for the cable 7 in the wire arranging groove, the electric wire of the fixed fan can be standardized, the wiring is convenient, the wiring is neat, and the line is convenient to search, maintain and change. Furthermore, the grooves formed by stamping are formed on the two sides of the connecting bottom plate, so that the overall structural strength is enhanced.

As shown in fig. 4, the connection pipe 3 of the connection assembly of this embodiment preferably adopts a silencing pipe, the silencing pipe is of a double-layer structure, silencing cotton is arranged between the two layers, and the inner layer surface of the silencing pipe is provided with a plurality of small holes. Of course, if the requirement for silence is not very high like this embodiment, the silencing tube can be replaced by a common connecting tube, which does not affect the air purifying effect of the fresh air device. A cable channel is further arranged in the connecting pipe 3, and a cable of a motor in the external machine penetrates through the wall body through the cable channel of the connecting pipe 3 and then extends out through the wire arranging groove 210 on the back surface of the connecting bottom plate 2 so as to be connected with a mains supply.

In order to let through this embodiment new trend device get into indoor air PM2.5 and be close to zero, connect bottom plate 2 fixed mounting on the wall body, and fixed with connecting pipe 3, the other end is connected with integrated interior unit-type filter core 1, all is provided with the sealing washer between connecting bottom plate 2 and wall body 6, connecting bottom plate 2 and integrated interior unit-type filter core. Realize multilayer sealed with simple structure like this, can guarantee that unfiltered air can not directly get into indoorly, outdoor air can only get into indoorly through the filter core filtration earlier. Unique sealing connection structure lets the fresh air device get rid of redundant interior machine shell to the purification of air is realized to simple integration interior machine mode filter core, prevents that unfiltered air from getting into indoorly.

Fig. 8 shows another connection mode of the connection base plate 2 and the connection pipe 3 of the fresh air device in this embodiment, that is, the connection base plate and the connection pipe are fixedly connected by a bolt 212 capable of adjusting the distance therebetween, so as to meet the installation requirements of walls with different thicknesses without replacing the connection pipe or changing the length of the connection pipe. The concrete conditions are as follows: when the length of the connecting pipe is larger than the thickness of the wall body, only the extra part of the connecting pipe needs to extend out of the wall, the outer machine is fixed on the connecting pipe, the connecting bottom plate for installing the integrated inner machine type filter element is fixed on the indoor wall, and the connecting bottom plate is directly contacted and fixed with the connecting pipe; when the length of the connecting pipe is smaller than the thickness of the wall body, the outer unit is attached to the outer wall, the connecting bottom plate and the connecting pipe are fixed through the longer bolt 212, and the connecting bottom plate 2 is not in direct contact with the connecting pipe 3. Although the connection bottom plate and the connection pipe are not in contact with each other in this case, since the seal ring is provided between the connection bottom plate and the wall body, there is no fear that unpurified air enters the room through a gap between the connection bottom plate and the wall body.

The connection mode of the invention can adopt other implementation modes except the mode that the integrated internal machine type filter element is connected with the connection bottom plate and the connection bottom plate is connected with the connection pipe, for example, the connection pipe is fixed with a wall body by a connection bracket and is connected with the integrated internal machine type filter element; or the connecting pipe is directly connected with the integrated inner machine type filter element, a connecting bottom plate or a support is not arranged, specifically, a protruding thread can be arranged inside one side, close to the wall surface, of the integrated inner machine type filter element, and the silencing pipe is provided with a thread matched with the protruding thread.

Outdoor unit 4

Fig. 9 shows a preferred embodiment of the outdoor unit of the fresh air device of the present invention. The outer machine 4 comprises an outer machine shell 401, a volute 402, a mounting plate 403, a top cover 404, a filter screen 405, a volute upper plate 406, a volute side face 407, a volute lower plate 408, a fan 409, a fan mounting plate 410, an outer machine air inlet 411, a shock pad 412, a boss 413, a drainage groove 414 and an outer machine side panel 415. The fan 409 includes a motor therein.

Because the blower fan is provided with a volute with a larger volume, the blower fan with the volute is arranged in the outer casing, and the blower fan is larger in volume and is wasted. In order to reduce the volume of the outer unit, the volute of the fan is removed, the volute of the fan (comprising the volute side panel, the volute upper plate and the volute lower plate) is integrated in the outer unit, and the fan is installed in the volute integrated with the outer unit, so that the waste of materials is reduced, the weight of the outer unit is reduced, the volume of the outer unit is reduced, the structural strength is high, and the installation is more convenient. The fan is further installed on the boss of spiral case upper plate, and the boss edge is provided with the drainage groove, even if outer machine inside has intake carelessly like this, also can discharge through the drainage groove, does not influence the performance of fan. In addition, a shock pad can be arranged between the fan mounting plate and the fan, so that the vibration of the fan can be reduced, and the noise of the fan is reduced. Traditional new trend device, outer quick-witted air intake setting are in the side, and the rainwater flows into easily when raining like this and wafts into, influences outer quick-witted life, and this embodiment can set up the air intake below outer machine, can effectively prevent the entering of rain, water etc.. Furthermore, the top cover of the outdoor unit completely covers the upper edge of the side face of the outdoor unit and is provided with a downward extending edge, so that rain, water and the like can not enter the outdoor unit from a connecting seam between the top cover and the side face. Meanwhile, a filter screen can be arranged at the air inlet of the outer machine, so that insects, birds and the like can be prevented from flying in or being stretched into by people, and the device is safe and reliable.

Control assembly

Fig. 10 is a schematic structural diagram of a control component of the fresh air device according to the present invention. The control assembly 10 includes a controller 11 and a local control input member 12 electrically connected to the controller 11 by a wire. The local manipulation input part 12 is disposed indoors, and the controller 11 can control the motor 20 of the fan according to control information input by the local manipulation input part 12.

In one embodiment, the local control input assembly 12 includes a control button 504 (see fig. 11) electrically connected to the controller 11 via a wire. FIG. 11 shows a perspective view from a different perspective of some of the components of the control assembly 11; fig. 12 shows a perspective exploded view of a part of the control module 11, the control button 504 being arranged on the connection base plate 2. The controller 11 can control the on and off of the motor 20 in the blower and adjust the gear of the motor according to the control information input by the control button 504. In one example, long pressing the control button 504 in the power-on state indicates power-off, the motor 20 is turned off, the controller 11 is also turned off, and long pressing the control button 504 in the power-off state indicates power-on, the controller 11 is turned on, and the motor 20 may also be turned on. In the power-on state, when the motor 20 is in a non-highest gear, the control button 504 is pressed for a short time, and then the gear of the motor 20 is increased upwards, for example, the gear is originally a first gear, the gear is increased to a second gear after the control button 504 is pressed for a short time, and when the gear of the motor 20 is in a highest gear, the gear is pressed for a short time again, and then the gear is shifted to a lowest gear. Of course, a short press on control button 504 may also be provided to decrease the gear downward.

In one embodiment, the local control input assembly 12 includes a micro switch 503 electrically connected to the controller 11 by a wire. As shown in fig. 11 and 12, the microswitch 503 is provided on the connection base plate 2. When the integrated inner machine type filter element is installed on the connecting bottom plate 2, the microswitch 503 is triggered to enter a first state, when the integrated inner machine type filter element is detached from the connecting bottom plate, the microswitch 503 enters a second state, and when the microswitch 503 is in the second state, the controller 11 prohibits the motor in the fan from running. Therefore, the operation of the motor in the fan can be forbidden when the integrated inner machine type filter element is detached, and the motor in the fan can be started only after the integrated inner machine type filter element is installed.

With reference to fig. 10, 11 and 12, the control module 11 further includes an indicator light 505 electrically connected to the controller 11 through a circuit, and the on/off state of the motor and the gear position of the motor can be known according to the display state of the indicator light 505. In one example, the indicator light may include 4 LED lights, where the turning on and off of one LED light indicates power on or off. The other three LED lamps show the gear of the motor operation, wherein one LED lamp is on, the motor is shown as a first gear, two LED lamps are on, the motor is shown as a second gear, and three LED lamps are on, and the motor is shown as a third gear. Of course, more LED lamps may be provided, and the operation state indicated by the on/off of each LED lamp may be designed as needed.

As shown in fig. 11 and 12, the control assembly 11 further includes an appliance control box formed by a front case 501 and a rear case 502, and the appliance control box is mounted on the connection base plate 2. The microswitch 503, the control button 504 and the indicator lamp 505 are assembled in the electrical appliance control box. In this embodiment, the controller 11 is also placed in the electrical appliance control box, but in other embodiments, the controller 11 may be placed in other positions. In this embodiment, an arc-shaped groove is formed in the electrical appliance control box, the micro switch 503 is arranged in the arc-shaped groove, a clamping strip matched with the arc-shaped groove is arranged on one side, close to the connecting bottom plate, of the integrated internal machine type filter element, and when the filter element rotates to a certain angle, the micro switch is triggered to enter the first state. Because the invention omits an inner machine and adopts the structure of the integrated inner machine type filter element, the integrated inner machine type filter element can not have electronic components, the replacement of the integrated inner machine type filter element is more convenient, the waste of materials is reduced, and the arrangement of all control components on the connecting bottom plate is one of the innovations of the invention.

As shown in fig. 5, the fresh air device of this embodiment preferably includes a light guide column 111, an inner shielding sheet 112, an outer shielding sheet 113, and a first light hole set 109 and a second light hole set 110 respectively disposed on the front cover and the rear cover. The light guide column 111 is disposed between the first light transmission hole set 109 and the second light transmission hole set 110. Thus, the light emitted from the indicator light 505 can be emitted through the second light hole group 110, the light guide 111, and the first light hole group 109, so that the status of the indicator light 505 can be seen. Due to the design, no electric appliance wire or electronic component needs to be arranged on the integrated inner machine type filter element, the integrated inner machine type filter element is more convenient to replace, the waste of materials is reduced, and meanwhile, as the on-off state of the fresh air device and the air quantity level of the fan are displayed on the integrated inner machine type filter element, the result is clearer, more visual and more attractive.

As shown in fig. 10, the control assembly further includes a power conversion module 15, and the power conversion module 15 is connected to ac mains power through a cable, and is configured to convert ac power into dc power to provide dc power to the controller, the wireless communication circuit, and/or the motor.

By using the fresh air device disclosed by the invention, the outdoor unit is placed outdoors to collect outdoor fresh dirty air, the filtered fresh clean air with PM2.5 close to 0 is continuously sent into a room, micro positive pressure is formed in the room, the indoor air slowly overflows from a door seam and a window seam to form a protective shield, and the outdoor dirty air is prevented from flowing backwards into the room. The PM2.5 value in the whole room is reduced to 10ug/m when the machine is started for one hour³The following (outdoor PM2.5 is 100ug/m³Above), the effect is better than the clarifier in prior art, and with low costs. The fresh air device disclosed by the invention solves a series of problems of large volume, high cost, high noise and the like of the existing high-power purifier, and the unique structural design further reduces the production, installation, use and maintenance costs. The invention can continuously dilute and remove various harmful volatile substances released after indoor decoration, including but not limited to formaldehyde, benzene, dimethylbenzene and TVOC. The air outlet of the invention supplies ultra-clean air, thus the concentration of suspended particles in the indoor air is lower, the indoor floating dust is reduced, and the trouble of indoor cleaning sanitation is reduced. The technical scheme of the invention has the advantages of good purification effect, large purification area, low noise, long service life, large dust capacity, small occupied indoor space, simple and convenient replacement appearance at any time, low production and installation cost of products, easy installation, safe installation and no secondary pollution, and is particularly very suitable for the installation of old houses of residentsThe novel air purifier is convenient to install, a complex pipeline does not need to be laid like a common novel air purifier, better user experience can be given to customers, and perfect balance of purification efficiency, effect, cost and noise is basically achieved.

Remote control and locking

In one embodiment, as shown in fig. 10, the control assembly further includes a wireless communication circuit 13 electrically connected to the controller 11 through a wire. The wireless communication circuit can receive control information from a server through a communication network, and the controller can control the motor in the fan according to the control information from the server received by the wireless communication circuit. Therefore, the server can remotely control the fresh air device.

Preferably, the wireless communication circuit includes a subscriber Identity module and a mobile communication circuit, wherein the mobile communication circuit may be a 2G, 3G, 4G, 5G communication circuit, and the like, and the subscriber Identity module may be a sim (subscriber Identity module) card. The mobile communication circuit can be accessed to a mobile communication network by the aid of the client identity module and is communicated with the server through the mobile communication network. By adopting such a communication mode, the wireless communication circuit 13 can directly communicate with the server through a mobile communication network of a mobile communication operator (such as china mobile or chinese telecom, etc.), and the network maintenance is simple, the coverage of the communication network is wide, and the subsequent maintenance and use are convenient. Of course, in other embodiments, the wireless communication circuit may also be a WIFI wireless communication module, or a bluetooth wireless communication module, etc., and at this time, it needs to be connected to the internet by means of other devices of the client, such as a home router, a control center, etc., and then connected to the server through the internet.

In one example, the control information from the server includes an upcoming expiration reminding control information and/or a locking control information, the controller 11 can prohibit the motor in the fan from operating according to the locking control information, at this time, the fresh air device enters a locking state, and the controller 11 no longer starts and controls the motor in the fan according to the local control input component 12, such as starting the motor, regulating the gear of the motor, and the like. Thus, the server can lock the fresh air device when needed, and the user needs to contact the server through other means to unlock the fresh air device. The controller 11 can remind the user of the due date according to the control information of the due date reminder received by the wireless communication circuit. The indicator light may be a multi-colored light that is a first color, such as green, during normal operation and changes to a second color, such as red, upon an imminent expiration alert. Of course, the reminder may also blink to remind when the reminder is about to expire. Thus, when the time comes to expire, the reminding can be carried out through the display of the indicator lamp so as to bring convenience for the attention of the user. Typically, a reminder to expire is required before the fresh air device is locked.

In one application example, the fresh air device is installed in the home of the user, and the fresh air device needs to replace the integrated internal mechanical filter element at regular intervals or a certain time so as to enable the fresh air device to play a due air filtering effect. After the fresh air device operates for a period of time, when the server detects that the integrated internal machine type filter element is about to be replaced, the server can generate the reminding control information about coming due and send the reminding control information to the wireless communication circuit 13 of the fresh air device, so that a user can timely notice the reminding about coming due, and the replacement of the integrated internal machine type filter element is arranged as early as possible. And if the user does not change the integrated internal machine type filter element at a later time, the server can generate locking control information and send the locking control information to the wireless communication circuit 13 of the fresh air device after the real expiration so as to lock the fresh air device and force the fresh air device not to operate.

In yet another example, the control information from the server includes switch control information and/or gear position control information. The controller 11 can control the on and off of the motor in the fan according to the switch control information received by the wireless communication circuit 13, and the controller 11 can control the gear of the motor in the fan according to the gear control information received by the wireless communication circuit 13. In this way, the server can remotely control the on, off, and operating gears of the fresh air device without requiring control buttons 504 that directly control the fresh air device in the vicinity.

Fresh air service system

According to another aspect of the invention, the invention also provides a fresh air service system. FIG. 13 is a block diagram of a fresh air service system of the present invention in one embodiment. As shown in fig. 13, the fresh air service system includes a server 30 and a plurality of fresh air devices 40.

Each fresh air device 40 may be the fresh air device described above, and the fresh air device 40 may communicate with the server 30 through a communication network. Each fresh air device 40 has a uniquely identifiable equipment identity based on which it communicates with the server 30. The controller of each fresh air device 40 uploads the switch information of the motor, the gear information of the motor, the upcoming expiration reminding state information and/or the locking state information to the server 30 through the wireless communication circuit every predetermined time. In one embodiment, the fresh air device 40 uploads data to the server 30 in units of frames, and one frame of data is uploaded every 1 minute, where each frame of data includes a start code, a device physical address (i.e., a device identity), a function field, a power on/off field, a gear field, an expiration reminding state field, a locking state field, a reserved field, and a check code. In one example, the function field is 0x01, indicating the device upload status, the function field is 0x03, indicating heartbeat data, and the function field is 0xFF, indicating don't care; the power-on/off field is 0x00 for power-off, 0x01 for power-on, and 0xFF for irrelevant; the shift field is 0x00 to indicate the shift at the time of power off, 0x01 to indicate first gear, 0x02 to indicate second gear, 0x03 to indicate third gear, 0x04 to indicate fourth gear, and 0xFF to indicate irrelevant; the expiration reminding state field is 0x00 to indicate that the filter screen is normal, and 0x01 to indicate that the filter screen is about to expire; a lock status field of 0x00 indicates normal use, 0x01 indicates a lock status, and so on.

The server 30 may send control information to each fresh air device 40 as needed. In one example, the control information from the server 30 is in frames, where each frame of data includes a start code, a device physical address, a function field, a power on/off field, a gear field, an expiration reminder field, a lock status field, a reserved field, and/or a check code. In one example, the function field is 0x01, indicating the queried device state, the function field is 0x02, indicating the controlling device, and the function field is 0xFF, indicating don't care; the power-on/off field is 0x00 for power-off, 0x01 for power-on, and 0xFF for irrelevant; the shift field is 0x00 to indicate the shift at the time of power off, 0x01 to indicate first gear, 0x02 to indicate second gear, 0x03 to indicate third gear, 0x04 to indicate fourth gear, and 0xFF to indicate irrelevant; the expiration reminding state field is 0x00 to indicate that the filter screen is normal, and 0x01 to indicate that the filter screen is about to expire and remind a control information command; a lock status field of 0x00 indicates normal use, and a field of 0x01 indicates a lock control information instruction, etc.

The server 30 receives the switch information of the motor, the gear information of the motor, the upcoming expiration reminding state information and/or the locking state information uploaded by each fresh air device 40, and stores the motor operation data information uploaded by each fresh air device, wherein the motor operation data information includes the switch information of the motor and the gear information of the motor.

In one embodiment, the server 30 stores the position information of each fresh air device, the server obtains the real-time air quality data of the nearby air quality monitoring station of each fresh air device, and the server 30 gives the recommended motor operating gear of each fresh air device 40 to the user based on the real-time air quality data of the nearby air quality monitoring station of each fresh air device. Such as a period of poor air quality, the server 30 may recommend a higher electrode operating range, such as the highest range, to the user in order to maintain the quality of the indoor air, and during a period of good control quality, the server 30 may recommend a lower electrode operating range, such as the lowest range, to the user in order to reduce power consumption while maintaining the quality of the indoor air. In addition, if the user selects to automatically control the fresh air devices 40 by the server 30, the server 30 can automatically control the motor operation gears of the fresh air devices 40 according to the real-time air quality data of the air quality monitoring station nearby each fresh air device, so that the user can use no trouble, and the server 30 continuously adjusts the motor operation gears of the fresh air devices, so as to reduce the power consumption as much as possible on the premise of keeping the indoor air quality.

In one embodiment, the server 30 may analyze the motor operation data information uploaded by each fresh air device 40 to obtain an air exchange frequency, a total air exchange number, a daily average air exchange number, a total purified air volume, and/or a daily average purified air volume. The user may access the server 30 to view the relevant data.

The server 30 generates switch control information of the appointed fresh air device according to the requirement, and sends the switch control information to the wireless communication circuit of the appointed fresh air device, and the server 30 generates gear control information of the appointed fresh air device according to the requirement, and sends the gear control information to the wireless communication circuit of the appointed fresh air device. As shown in fig. 13, a user may access the server 30 through an application program on the client terminal 50, and further query the server 30 for motor operating gear information and/or motor switch information of the new air device. In addition, the user can also access the server 30 through an application program on the client terminal 50, and further control the motor operation gear information and/or the motor switch information of the own fresh air device through the server 30. In one example, the user may access the server 30 through a WeChat or other application program, through which the motor operating range information and/or the motor switch information of the own fresh air device may be queried and controlled. In this way, remote control of the fresh air device 40 can be achieved.

In one embodiment, the wireless communication circuit of the fresh air device 40 is capable of receiving upgrade data from the server 30 via the communication network, and the controller of the fresh air device 40 performs an upgrade based on the upgrade data from the server. In this way, the software of the controller of the fresh air device 40 can be upgraded according to the development schedule.

Filter element replacement scheme

In one embodiment, the server 30 sends the impending expiration reminder control message to the wireless communication circuit of the fresh air device when the air filtration device of the fresh air device has an operating time greater than or equal to a first operating time threshold, and the server 30 sends the lockout control message to the wireless communication circuit of the fresh air device when the air filtration device of the fresh air device has an operating time greater than or equal to a second operating time threshold, wherein the first operating time threshold is less than the second operating time threshold, and the operating time of the air filtration device of the fresh air device is re-timed after the air filtration device is replaced.

In one example of application, the first operating time threshold is 4000 hours and the second operating time threshold is 4500 hours, in other words, after the operating time of the air filtering device of the fresh air device is greater than or equal to 4000 hours, an impending expiration reminder is given to the user, and after the operating time of the air filtering device of the fresh air device is greater than or equal to 4500 hours, the fresh air device is directly locked to prompt the user to replace the air filtering device. After the user has replaced the air filter device, the operating time of the air filter device of the fresh air device is again counted from 0. Preferably, the operating time of the air filter device does not include idle time.

However, the above-mentioned technical solution for determining whether the air filter device needs to be replaced still has certain problems, such as different pollution degrees of the air filter device after a certain time of operation for different air quality places, and different pollution degrees of the air filter device due to different operating gears of the air filter device. Therefore, the invention further provides a novel technical scheme for determining whether the air filtering device needs to be replaced.

In one embodiment, the server 30 sends the locking control information to the wireless communication circuit of the fresh air device when the estimated dust holding value of the air filtering device of the fresh air device is greater than or equal to the first preset dust holding threshold, and the fresh air device locks the fan after receiving the locking control information. When the estimated dust holding value of the air filtering device of the fresh air device is greater than or equal to the second preset dust holding threshold value, the server 30 sends the prompt control information about coming due to expiration to the wireless communication circuit of the fresh air device, and the fresh air device carries out prompt about coming due after receiving the prompt control information about coming due to expiration. Wherein the second predetermined dust holding threshold is smaller than the first predetermined dust holding threshold.

The estimated dust holding value of the air filter device is directly related to the product of the amount of air delivered through the air filter device and the quality of the outdoor air. In one example, the estimated dust holding value of the air filter device is equal to the sum of products of the amount of air blown through the air filter device and the outdoor air quality in each period, specifically, Xn ═ Xn-1+ Xg, where Xn is the latest estimated dust holding value of the air filter device, Xn-1 is the estimated dust holding value of the air filter device that has been accumulated up to now, Xg is the estimated dust holding value accumulated over the latest period of time Tl, Xg ═ Tl a, L is the amount of air blown through the air filter device per unit time (related to the operating gear), a is the air quality coefficient of the current outdoor air, such as 100 ug/cubic meter representing PM 2.5. The first and second predetermined dust holding thresholds may be predetermined according to experiments. The technical scheme for determining whether the air filtering device needs to be replaced not only considers the external air quality condition, but also considers the operation gear of the motor, and simultaneously considers the actual operation time, thereby objectively reflecting the condition of the air filtering device.

In a modified embodiment, the controller directly prohibits the motor in the fan from operating when the actual usage time of the air filtering device is greater than or equal to a maximum time threshold, regardless of whether the estimated dust holding value of the air filtering device is greater than or equal to a first preset dust holding threshold, and the maximum time threshold may be 1 year or 1.5 years, for example. Thus, even if the air filter device is not used for a long period of time, it may be prohibited from being used because the actual use period is greater than or equal to the maximum time threshold.

In an improved embodiment, the controller of the fresh air device may also be configured to determine an estimated dust holding value of the air filtering device, and compare the estimated dust holding value of the air filtering device with the first preset dust holding threshold and the second preset dust holding threshold, without the server 30 being required to perform the relevant actions, and the controller of the fresh air device may directly prohibit the motor of the fan from operating when the estimated dust holding value of the air filtering device is greater than or equal to the first preset dust holding threshold.

Filter element identification

In one embodiment, the air filter device 1 includes a filter cartridge identification module (not shown) installed in the filter cartridge carrying device, and the control component includes a filter cartridge identification device (not shown) electrically connected to the controller through a line, the filter cartridge identification device being disposed opposite to the filter cartridge identification module when the air filter device 1 and the connection component 8 are assembled together, and being capable of reading the filter cartridge identification in the filter cartridge identification module. And the filter element identification mark read by the filter element identification recognizer is handed to the controller. The controller 11 allows the motor in the fan to normally operate when the read filter element identification is determined to be authorized, and prohibits the motor in the fan from normally operating when the read filter element identification is determined to be unauthorized. In one example, the filter element identification module may be an RFID (radio Frequency identification) module, and the filter element identifier may be an RFID reader, although other identification schemes may also be used.

In one embodiment, the server records and updates the filter cartridge identification that has been authorized for use. Specifically, each time a genuine air filter device 1 is sold, the filter cartridge identification of the air filter device 1 may be registered in the server by the user himself or by the supplier, and the server may include the filter cartridge identification in the filter cartridge identification authorized for use, thereby completing the authorization or activation. The controller of the fresh air device sends the read filter element identification to the server, the server confirms whether the read filter element identification is authorized to be used or not, the motor in the fan is allowed to normally operate when an authorized use reply sent by the server is received, and the motor in the fan is forbidden to normally operate when an unauthorized use reply sent by the server is received. The server records and updates the filter element identification which is authorized to be used. When the server receives the filter element identification sent by the fresh air device, the server can know whether the filter element identification needing to be inquired is authorized to be used or not only by inquiring the list of the filter element identification authorized to be used.

Thus, if the air filter device 1 is counterfeit or pirated, the air filter device 1 installed as such will not function properly. Only when a user purchases a genuine air filter device 1, and registers the purchased air filter device 1 with the server 30 for authorization, the air filter device 1 finally purchased can be operated in cooperation with the fresh air device.

In addition, the server can also receive and store the filter element identification of the air filtering device matched with the fresh air device uploaded by each fresh air device. Every new trend device has equipment ID, the server storage has the equipment ID of every new trend device, can be in the same place the equipment ID of new trend device and rather than the filter core ID of the air filter who moves in the lump correlation simultaneously, can know which air filter and which new trend device move together like this.

In a preferred embodiment, the server not only records and updates the filter cartridge identifiers authorized to be used, but also records the latest estimated dust holding value of the air filter device corresponding to each filter cartridge identifier authorized to be used, wherein the estimated dust holding value of the air filter device corresponding to the unused filter cartridge identifier is an initial value, such as 0, when the unused filter cartridge identifier is first registered in the server. Thus, when the air filter device a2 of the fresh air device a1 of a user is replaced with another fresh air device B, the server can still obtain the filter element identifier of the air filter device a2 through the another fresh air device B, and associate the filter element identifier with the another fresh air device B, and meanwhile, the estimated dust holding value of the air filter device a2 is still the original value, so that the estimated dust holding value of the air filter device a2 is continuously tracked.

The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.

Claims

1. The utility model provides a new trend device, is including setting up in outdoor outer machine, setting up in indoor air filter, coupling assembling and the control assembly, be provided with the fan in the outer machine, the fan is including motor, its characterized in that: one end of the connecting component is connected with the external machine, the other end of the connecting component is connected with an air filtering device, a pipeline of the connecting component is communicated with the external machine and the air filtering device, the air filtering device comprises a filter element bearing device, a filter element and a filter element identity identification module, the filter element bearing device comprises an air inlet to be purified and an air outlet to be purified,

the control assembly comprises a controller and a filter element identity recognizer, the filter element identity recognizer can read the filter element identity in the filter element identity module and deliver the filter element identity to the controller after the air filtering device is assembled with the connecting assembly,

the controller allows the motor in the fan to normally operate when the read filter element identification is confirmed to be authorized to use, and prohibits the motor in the fan from normally operating when the read filter element identification is confirmed to be unauthorized to use.

2. The fresh air device as claimed in claim 1, wherein: the filter element identity module is arranged on the filter element bearing device, the filter element identity recognizer is arranged on the connecting assembly, the air filtering device is assembled with the connecting assembly together, and the filter element identity recognizer and the filter element identity module are arranged relatively.

3. The fresh air device as claimed in claim 1, wherein: the controller sends the read filter element identity identification to the server, the server confirms whether the read filter element identity identification is authorized to be used or not, when an authorized use reply sent by the server is received, the motor in the fan is allowed to normally operate, and when an unauthorized use reply sent by the server is received, the motor in the fan is forbidden to normally operate;

the server records and updates the filter element identification which is authorized to be used.

4. The fresh air device as claimed in claim 1, wherein:

the control assembly comprises a local control input component and a wireless communication circuit, the local control input component is arranged indoors, the controller can control the motor in the fan according to control information input by the local control input component, the wireless communication circuit can receive control information from the server through a communication network, the controller can control the motor in the fan according to the control information input by the wireless communication circuit, the control information from the server comprises locking control information, and the controller can prohibit the motor in the fan from running according to the locking control information input by the wireless communication circuit.

5. The fresh air device as claimed in claim 4, wherein: the local control input assembly comprises a control button, wherein the controller can control the on and off of a motor in the fan and adjust the gear of the motor according to control information input by the control button,

the local control input assembly includes a micro switch switchable between a first state and a second state, the micro switch being driven to enter the first state when the air filter device is assembled with the connection assembly, the micro switch entering the second state when the air filter device is disassembled from the connection assembly, and the controller prohibiting operation of a motor in the fan when the micro switch is in the second state.

6. The fresh air device as claimed in claim 4, wherein:

the control information from the server comprises upcoming expiration reminding control information, and the controller can remind about upcoming expiration according to the upcoming expiration reminding control information input by the wireless communication circuit;

the control information from the server comprises switch control information, and the controller can control the on and off of a motor in the fan according to the switch control information input by the wireless communication circuit; and/or

The control information from the server comprises gear control information, and the controller can control the gear of the motor in the fan according to the gear control information input by the wireless communication circuit.

7. The fresh air device as claimed in claim 6, wherein: the control assembly further comprises an indicator light, the motor can be known to be started or closed and the gear of the motor according to the display state of the indicator light, the indicator light is a multicolor light, the indicator light is in a first color when the control assembly operates normally, and the indicator light is changed into a second color when the control assembly is about to expire.

8. The fresh air device as claimed in claim 6, wherein: the control information from the server is in units of frames, wherein each frame of data comprises a start code, a device physical address, a function field, a power-on/off field, a gear field, an expiration reminding field, a locking state field, a reserved field and/or a check code,

the controller uploads the switch information, the gear information, the upcoming expiration reminding state information and/or the locking state information of the motor to a server through the wireless communication circuit every preset time, the wireless communication circuit uploads data to the server by taking a frame as a unit, and each frame of data comprises a start code, a device physical address, a function field, a startup and shutdown field, a gear field, an expiration reminding state field, a locking state field, a reserved field and a check code.

9. The fresh air device as claimed in claim 4, wherein: the wireless communication circuit comprises a client identity identification module and a mobile communication circuit, and the mobile communication circuit is accessed to a mobile communication network by means of the client identity identification module and is communicated with the server through the mobile communication network.

10. The fresh air device as claimed in claim 1, wherein: outdoor air enters the room after sequentially passing through a pipeline in the connecting component, an air inlet to be purified of the filter element bearing device, the filter element and an air outlet for purifying the filter element bearing device under the driving of the fan, the air filtering device is an integrated internal machine type filter element, the filter element bearing device is detachably and hermetically connected with the connecting component,

the filter core of indoor unit formula filter core of integration bears the device and comprises filter core protecgulum, filter core back cover, outer net and intranet, the filter core protecgulum sets up and is keeping away from wall body one side, the lid sets up and is being close to wall body one side behind the filter core, the lid sets up behind the filter core remains the air purification air intake, outer net and intranet set up behind filter core protecgulum and filter core between the lid, the filter core sets up between intranet and outer net, the filter core bears the device inside and has enclosed into the air cushion chamber by intranet and filter core protecgulum partly, the air cushion chamber with wait to purify air intake intercommunication, the outer net that the filter core bore the device constitutes the air purification air outlet and directly communicates with indoor filter paper, the filter core in the indoor unit formula filter core of integration forms for glass fiber is multiple folding.

11. The fresh air device as claimed in claim 10, wherein: the edge of the integrated inner machine type filter element is provided with a buckle part, and the integrated inner machine type filter element is detachably connected with the connecting component in a mutually matched buckle connection mode; or the integrated inner machine type filter element is provided with an external thread, the connecting component is provided with an internal thread, the external thread and the internal thread are screwed and connected with the integrated inner machine type filter element and the connecting component, an air buffer chamber is arranged in the filter element bearing device close to the central position and connected with an air inlet of air to be purified, the filter element is arranged around the air buffer chamber, the air buffer chamber in the filter element bearing device is provided with a fluid director, the fluid director is arranged on a cover plate of a filter element front cover of the air buffer chamber, the surface of the fluid director is provided with a plurality of small holes or strip-shaped holes, and the fluid director,

the connecting assembly comprises a connecting part and a connecting pipe, the connecting part is connected with the air filtering device through the connecting part, the connecting part is a connecting bottom plate, the connecting bottom plate is arranged indoors, one end of the connecting bottom plate is connected with the connecting pipe through a fastener, the other end of the connecting bottom plate is detachably and hermetically connected with the integrated internal machine type filter element,

and a silencing material is arranged in the pipeline of the connecting pipe.

12. The fresh air device as claimed in claim 11, wherein: the control component also comprises an indicator light which is arranged on the connecting bottom plate, the edge of the integrated inner machine type filter element is provided with a light guide column, the light guide column displays the state of the indicator light on the integrated inner machine type filter element,

the integrated internal machine type filter element is provided with a front cover and a rear cover, a first light transmission hole group and a second light transmission hole group are respectively arranged at the corresponding positions of the front cover and the rear cover, and the light guide column is arranged between the first light transmission hole group and the second light transmission hole group.

13. A fresh air service system, comprising:

and the server is used for sending control information to the plurality of fresh air devices through a communication network, receiving and storing the switch information of the motor, the gear information of the motor, the upcoming expiration reminding state information and/or the locking state information uploaded by each fresh air device, and receiving and storing the filter element identification of the air filtering device which is uploaded by each fresh air device and used in cooperation with the fresh air device.

14. The fresh air service system as claimed in claim 13, wherein the server stores position information of each fresh air device, the server acquires real-time air quality data of a nearby air quality monitoring station of each fresh air device, the server gives a recommended motor operating gear of each fresh air device or automatically controls a motor operating gear of each fresh air device to a user based on the real-time air quality data of the nearby air quality monitoring station of each fresh air device,

the server analyzes the motor operation data information uploaded by each fresh air device to obtain air exchange frequency, total air exchange times, daily average air exchange times, total purified air volume and/or daily average purified air volume,

the user can access the server through the application program, and further inquire or control the motor running gear information and/or the switch information of the motor of the fresh air device of the user through the server,

the server generates switch control information of the appointed fresh air device according to the requirement, sends the switch control information to the wireless communication circuit of the appointed fresh air device,

the server generates gear control information of the appointed fresh air device according to needs, and the gear control information is sent to the wireless communication circuit of the appointed fresh air device.

15. The fresh air service system as claimed in claim 13, comprising:

one or more fresh air devices as claimed in any of claims 1 to 12,

the server records and updates the filter element identification marks authorized to be used, and simultaneously records the latest estimated dust holding value of the air filtering device corresponding to each filter element identification mark.