CN108458425B

CN108458425B - Air treatment equipment

Info

Publication number: CN108458425B
Application number: CN201710086263.2A
Authority: CN
Inventors: 大森宏; 王文鹏; 岳宝; 张科; 叶文
Original assignee: Midea Group Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date: 2017-02-17
Filing date: 2017-02-17
Publication date: 2019-12-17
Anticipated expiration: 2037-02-17
Also published as: CN108458425A

Abstract

The invention discloses air treatment equipment, which comprises a wall penetrating pipe embedded in a wall hole and an indoor unit body exposed indoors, wherein the wall penetrating pipe comprises a mounting sleeve (18) embedded in the wall hole of a mounting wall (27), the outer end of the mounting sleeve penetrates out of the wall hole, the inner end of the mounting sleeve is provided with a peripheral flange attached to the inner wall surface of the mounting wall, the indoor unit body comprises an outer cover (17), and the outer cover is detachably and fixedly connected with the peripheral flange of the mounting sleeve. In the air treatment equipment, the two major parts of the air treatment equipment, namely the indoor machine body and the wall penetrating pipe part, can be fixed on the inner wall surface, and the two parts can be detachably connected, so that the two parts are easy to disassemble and convenient to disassemble, assemble and maintain. The whole structure and all parts of the invention realize modular design and compact design, occupy small space, are particularly easy to assemble, disassemble and maintain, and are greatly convenient for users and installation workers.

Description

Air treatment equipment

Technical Field

The present invention relates to air treatment devices.

Background

The problem of air pollution is more and more prominent in the current society, the health of people is seriously harmed, in order to deal with the problem of increasingly worsened air pollution, various air treatment equipment are widely applied to families, office buildings, hospitals, schools and the like, wherein the fresh air device is air treatment equipment which is relatively wide in application and relatively high in practicability. At present, products in the fresh air industry mainly take a central fresh air system as a main part, and besides, wall-mounted air treatment equipment, cabinet air treatment equipment and wall-penetrating air treatment equipment are also applied more.

the central fresh air system comprises a main machine, an air inlet pipe and an air outlet pipe, wherein the main machine is arranged at the top of the indoor space, indoor dirty air is discharged out of the indoor space through the air outlet pipe, and outdoor fresh air is purified in the fresh air main machine through the air inlet pipe and then is sent into the indoor space. The fresh air host machine is generally internally provided with a fan and a filter screen, the fan comprises an induced draft fan and an exhaust fan to realize the bidirectional circulation of air flow, and some of the fresh air host machine also comprises a total heat exchanger to realize the partial temperature exchange of indoor air and outdoor air and adjust the air humidity.

The wall-mounted and cabinet-type air processing equipment integrates components such as a fan, a filter screen and the like into a machine to form a host, the host is generally installed indoors and communicated with the outdoors through an inlet pipeline and an outlet pipeline, and the common pipelines are short and hidden in the wall and cannot be seen. The fan is divided into a draught fan and a blower, the draught fan introduces indoor dirty air through air openings around the main machine shell and discharges the indoor dirty air outdoors, and the blower introduces outdoor fresh air through an air inlet pipeline and sends the outdoor fresh air into the room after passing through a filtering component (generally a multi-stage filter screen). In addition, higher wall-mounted and cabinet air handling units are typically equipped with total heat exchangers to achieve partial temperature exchange of indoor and outdoor air and to regulate air humidity.

the wall-through air treatment equipment is generally arranged on a wall body or glass, the air treatment equipment is placed inside the wall body or glass by punching holes (generally with the diameter of more than 15 cm) in the wall body or glass, outdoor air is introduced into the wall body or glass through an internal fan and is sent into a room through a filter assembly (filter screen), the wall-through air treatment equipment generally adopts unidirectional flow of air flow, and some products realize intermittent indoor and outdoor air exchange to a certain degree by controlling the forward and reverse rotation of a fan.

the central fresh air system needs to be provided with a large number of air inlet pipes and air outlet pipes, home interior decoration is damaged, and the household space is greatly occupied. For the wall-mounted air treatment equipment and the cabinet air treatment equipment, although the ventilation pipeline is saved to a certain degree, the occupied space is large, the machine is heavy, the power is also large, the energy consumption is too high, and the use is not economical. Wall-penetrating type air treatment equipment generally filters through the filter screen, and once filterable inefficiency is difficult to satisfy the requirement of new trend to because needs integral erection in wall hole, require too high to the diameter in wall hole, the practicality reduces, seriously influences consumer's selection.

In addition, the central fresh air system, the wall-mounted air treatment equipment and the cabinet-type air treatment equipment adopt a filter screen as an air dust removal device, and some of the central fresh air system, the wall-mounted air treatment equipment and the cabinet-type air treatment equipment also adopt electrostatic dust removal equipment as an air dust removal device, but the electrostatic dust removal equipment is limited to an inherent mode formed by an electrostatic field, and the traditional plates which are oppositely arranged in parallel at intervals are adopted to form the electrostatic field, so that the volume of the air treatment equipment is huge, the occupied space is overlarge, air flow to be subjected to dust removal passes through the equipment straightly and quickly, the air dust removal efficiency is often low, the quality of introduced fresh air is often poor, the health of a human body is affected. In addition, some recessive hazard factors which affect human health and are difficult to discover for a long time by people in the field also exist in the air treatment equipment adopting the electrostatic dust removal equipment, so that the air treatment equipment has great potential safety hazard.

More seriously, the air treatment equipment of the above type generally has the defect of single function, only has the function of air external circulation, and in the case of serious haze of external air, not only the workload of the filter assembly of the air treatment equipment is increased, so that the filter assembly is easy to damage, but also the quality of the air sucked from the outside and filtered is even inferior to the original quality of the air in a room. In view of this, some relatively coarse air processing apparatuses with an internal circulation function exist in the prior art, for example, some air processing apparatuses adopt two fans to form an internal circulation mode and an external circulation mode relatively independently, which does not overcome the above existing defects of the existing air processing apparatuses, and causes the air processing apparatuses to be larger in size, more complex in structure, and more complicated in laying air ducts. In addition, some wall-mounted and cabinet-type air processing equipment directly provide an indoor air inlet on an indoor machine body, and the switching between the external circulation working mode and the internal circulation working mode is realized by selectively shielding the indoor air inlet or connecting the external air inlet of an external air inlet pipeline through a switching cover plate inside the machine body. Specifically, because the air inlet chamber of the wall-hanging type and cabinet type air processing equipment's indoor host computer is generally great, directly set up indoor air intake on the indoor host computer, indoor air intake is nearer apart from the fan distance, the indoor air through the fan suction is not like outside air inlet can via outside intake stack buffering, its direct high-speed entering indoor host computer air inlet intracavity, lead to indoor organism tremble, even take place to boom, simultaneously because the indoor air does not strike the filter piece through the high speed of buffering through the powerful suction of fan, lead to filtering the piece and damage easily, can't play good filtering. Once the filtering piece is damaged, the filtering piece cannot effectively play a role in limiting the outlet air speed, the flow rates of inlet air and outlet air tend to be close, and the inspection proves that dead circulation of indoor air is extremely easy to form in a local range around the indoor main machine at the moment, namely, the internal circulation working mode of the wall-mounted type air processing equipment and the cabinet type air processing equipment cannot effectively purify the indoor air basically at the moment, and the wall-mounted type air processing equipment and the cabinet type air processing equipment are in an invalid.

The above-mentioned defects of the air processing equipment have formed the technical bottleneck restricting the further development of the air processing equipment, and some harm factors have not been realized by those skilled in the art so far to have serious hidden dangers, especially how to make the air processing equipment effectively save the indoor space on the basis of having both the internal and external circulation working modes, and the working performance is good and reliable, which has become the technical problem in the field.

Disclosure of Invention

The invention aims to provide air treatment equipment which is compact in structure, modular in design, easy to assemble and disassemble, convenient for replacing parts and good in maintainability.

In order to achieve the purpose, the invention provides air treatment equipment which comprises a wall penetrating pipe embedded in a wall hole and an indoor unit body exposed indoors, wherein the wall penetrating pipe comprises a mounting sleeve embedded in the wall hole of a mounting wall, the outer end of the mounting sleeve penetrates out of the wall hole, a peripheral flange attached to the inner wall surface of the mounting wall is formed at the inner end of the mounting sleeve, the indoor unit body comprises an outer cover, and the outer cover is detachably and fixedly connected with the peripheral flange of the mounting sleeve.

An easy-to-assemble and disassemble structure is formed between the indoor part and the wall penetrating part of the air treatment equipment, namely, the indoor machine body and the wall penetrating pipe are simply fixed between the two modules through the peripheral flanging of the mounting sleeve and the outer cover of the indoor machine body on the inner side of the wall through fasteners such as screws and the like. During installation, the installation sleeve is first embedded into the wall hole, the flange of the installation sleeve is adhered to the inner surface of the wall, the inner elements of the wall penetrating pipe, such as the inner pipe, the dust collecting pipe and the like, are then installed, and finally the indoor machine body and the wall penetrating pipe are fixed on the wall surface. When the indoor machine body is disassembled, the connection between the indoor machine body and the wall penetrating pipe on the wall surface is loosened, and the internal structural elements can be disassembled respectively.

preferably, the outer cover is provided with a purified air outlet axially aligned with the wall penetrating pipe, an air suction device axially aligned with the wall penetrating pipe is arranged in the indoor unit, and the purified air outlet is provided with a detachable grille cover, so that the air suction device can be taken out from the purified air outlet. The air suction device, which is typically a fan, such as an axial fan or the like, is arranged inside the clean air outlet, providing suction power to promote the air flow. The fan is arranged in the indoor machine body in a detachable installation mode, and can be conveniently taken out from the grille cover at the purified air outlet for overhauling, maintaining and cleaning.

More preferably, the air suction device is an axial fan, the axial fan includes a fan blade portion and a mounting bracket, the fan blade portion is mounted on one side of the mounting bracket facing the grille cover, the air treatment equipment further includes an ozone filtering module, the ozone filtering module is detachably mounted on one side of the mounting bracket facing the wall penetrating pipe, and the mounting bracket is detachably mounted in the housing.

The ozone filtering module is used for treating ozone in the gas after primary purification treatment, and is usually installed close to a purified air outlet. Therefore, the ozone filtering module and the axial flow fan are assembled into an independent module, namely, the independent module is arranged on two sides of the mounting bracket and is detachably arranged in the indoor machine body through the mounting bracket. Therefore, the installation of the ozone filter module is convenient, and when the axial flow fan is taken out from the grid cover at the purified air outlet along the axial direction, the ozone filter module can be taken out together for renewal and the like.

optionally, the outer cover at the top of the indoor machine body is provided with a replacement valve positioned right above the ozone filter module, and the ozone filter module can be disassembled and assembled through the opened replacement valve. That is to say, axial fan can not take out with ozone filter module together, and ozone filter module can independently upwards be proposed, changes the maintenance.

Preferably, there are more radial components within the through-wall duct, i.e. more components to be nested. The wall penetrating pipe further comprises a dust collecting pipe which is nested in the mounting sleeve and can be electrified and a hollow inner pipe, an electrostatic dust removing structure is arranged in an annular pipe cavity between the dust collecting pipe and the inner pipe, the electrostatic dust removing structure comprises a high-voltage generator, an electrode wire and a dust collecting pipe, the electrode wire extends along the axial direction of the wall penetrating pipe, one of the electrode wire and the dust collecting pipe is electrically connected with the positive electrode of the high-voltage generator, and the other one of the electrode wire and the dust collecting pipe is electrically connected with the negative electrode of the high-voltage generator; the wall penetrating pipe further comprises a guide sleeve and a guide plate, the guide sleeve is arranged on the inner pipe, the guide plate is in a spiral blade shape and is arranged on the outer peripheral wall of the guide sleeve and abutted against the inner wall of the dust collecting pipe to form a spiral air purifying channel, and the electrode wires are arranged along the circumferential direction of the guide sleeve at equal intervals and penetrate through the guide plate. Therefore, the inner pipe, the flow guide sleeve, the flow guide plate, the dust collecting pipe and the mounting sleeve in the wall pipe are nested one by one and can be assembled in order.

Preferably, a switching sleeve is further arranged in the through-wall pipe for controlling the inner pipe to rotate so as to realize switching communication between the inner pipe cavity and the annular cavity between the inner pipe and the outer pipe, namely air channel switching control in double working modes of the air treatment equipment. Specifically, an outer shaft end of the inner pipe is connected with an inner pipe end face disc, a central baffle disc part of the inner pipe end face disc seals the outer shaft end face of the inner pipe, an outer ring part of the inner pipe end face disc seals the outer shaft end face of the annular pipe cavity and is provided with an outdoor vent communicated with the annular pipe cavity, and an indoor vent communicated with the annular pipe cavity is arranged on the outer peripheral wall of the outer shaft end of the inner pipe; the wall-penetrating pipe is internally provided with a switching retaining sleeve, the switching retaining sleeve comprises a sleeve part and a retaining sleeve end surface disc connected to the outer end surface of the sleeve part, the retaining sleeve end surface disc is provided with a central through hole suitable for the inner pipe to pass through, the outer peripheral edge part of the retaining sleeve end surface disc is provided with an outdoor air communicating port, and the outer peripheral wall of the sleeve part is provided with an indoor air communicating port; the fixed cover of switching spacer sleeve is located the outer axle head of inner tube, spacer sleeve end face dish hug closely in the inboard of inner tube end face dish, the inner tube can for it is rotatory and be in first rotatory position and the rotatory position of second in succession to switch the spacer sleeve first rotatory position, outdoor vent with outdoor air intercommunication mouth aligns the intercommunication just indoor vent and indoor air intercommunication mouth stagger each other and seal the rotatory position of second, indoor vent with indoor air intercommunication mouth aligns the intercommunication just outdoor vent and outdoor air intercommunication mouth stagger each other and seal. Therefore, the axial important component elements in the wall-penetrating pipe, namely the switching retaining sleeve and the inner pipe are also in a detachable sleeving relationship, the inner pipe is axially placed firstly, and then the switching retaining sleeve is sleeved on the inner pipe, so that the wall-penetrating pipe is convenient to disassemble and assemble.

Preferably, an outer shaft end limiting structure is arranged at the outer shaft end of the mounting sleeve, and the outer ends of the dust collecting pipe, the switching retaining sleeve and the inner pipe are abutted to the outer shaft end limiting structure; the air treatment equipment further comprises an inner end positioning sleeve connected with the peripheral flange of the mounting sleeve, the inner end positioning sleeve is embedded into the inner shaft end of the mounting sleeve to axially position the dust collecting pipe, the flow guide sleeve and the inner pipe, and the flow guide sleeve is in butt joint with the switching retaining sleeve.

All elements in the wall penetrating pipe are basically of a sleeving structure, so that the existence of the inner end positioning element and the outer end positioning element, namely the outer shaft end limiting structure and the inner end positioning sleeve, of the wall penetrating pipe is necessary. The outer shaft end limiting structure can be a flange in the outer shaft end of the mounting sleeve and the like. The inner end positioning sleeve is similar to the mounting sleeve in structure, namely, the inner shaft ends of the inner end positioning sleeve and the mounting sleeve can be provided with peripheral flanges and are fixed on the inner wall surface through fasteners. When the pipe-in element of the through-wall pipe needs to be replaced, the inner end positioning sleeve is firstly disassembled, and then the through-wall pipe can be taken out in sequence.

Preferably, the air treatment equipment further comprises a rotary driving assembly, the rotary driving assembly is connected with the inner shaft end of the inner pipe to control the inner pipe to rotate, the rotary driving assembly comprises a driving control device, a gear transmission mechanism and a rotary connecting sleeve, the driving control device, the gear transmission mechanism and the rotary connecting sleeve sequentially control transmission, one shaft end of the rotary connecting sleeve is connected to the inner shaft end of the inner pipe in a buckling mode, and the other shaft end of the rotary connecting sleeve is connected with an output shaft of the gear transmission mechanism. Wherein, the adoption gear drive mechanism can accurate control the rotation angle of inner tube, the accurate control of being convenient for. The rotary driving component is usually arranged in the indoor machine body and is connected with the inner shaft end of the inner pipe through a rotary connecting sleeve for transmission, wherein the rotary driving component is connected in a buckling mode, so that the rotary driving component is convenient to disassemble and assemble, and particularly when the indoor machine body is independently taken down.

More specifically, gear drive includes the turbine worm mechanism, driving gear and the driven gear who transmits in proper order, driven gear's output shaft the rotary connection cover, indoor set body include with the dustcoat that the wall pipe links to each other, the dustcoat internal fixation is provided with the installation support body, drive control device and gear drive install in on the installation support body. Therefore, the whole-process gear transmission of the gear transmission mechanism is accurately controlled, and the gear transmission mechanism is detachably arranged in the outer cover through the mounting frame body, so that the whole gear transmission mechanism is convenient to disassemble and assemble.

preferably, the installation sleeve is installed in an inclined mode, the inner shaft end of the installation sleeve is higher than the outer shaft end, and the horizontal lifting angle is 3-5 degrees. Like this, indoor organism can be under self gravity wall in the inseparabler laminating, and it is more reliable to support, and the complete machine is more steady.

Through the technical scheme, in the air treatment equipment, the two major parts of the air treatment equipment, namely the indoor machine body and the wall penetrating pipe part, can be fixed on the inner wall surface, the two parts can be detachably connected, the two parts are easy to disassemble, and the disassembly, the assembly and the maintenance are convenient. The air suction device, the ozone filtering module, the rotary driving component and the like in the indoor machine body are all in modular design, are respectively detachably arranged in the outer cover, and can be taken out independently from an outlet (such as a purified air outlet) arranged on the outer cover in time. All elements in the wall penetrating pipe are installed in a nested mode, the inner shaft end and the outer shaft end are respectively provided with an axial positioning structure, particularly, the inner shaft end is an independently detachable inner end positioning sleeve, and the inner end positioning sleeve needs to be correspondingly installed and fixed or detached at the beginning of assembling and disassembling the wall penetrating pipe. In addition, the rotary driving component arranged in the indoor machine body is connected with the inner shaft end of the inner pipe in a buckling mode through the rotary connecting sleeve, and the rotary driving component is convenient to disassemble and assemble. Therefore, the whole structure of the invention realizes modular design, has compact structure and small occupied space, is particularly easy to assemble, disassemble and maintain, and is greatly convenient for users and installation workers.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic cross-sectional structural view of an air treatment apparatus according to an embodiment of the present invention, in which partial cross-sectional lines are omitted for clarity of illustration;

FIG. 2 is a schematic air flow diagram of the induced draft and internal cycle modes of operation of the air treatment apparatus of the embodiment of FIG. 1;

FIG. 3 is a perspective view of the air treatment device of the embodiment shown in FIG. 1;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a perspective cross-sectional view A-A of FIG. 4;

FIG. 6 is a schematic view of the drive control device and gear train of the air treatment apparatus of the embodiment shown in FIG. 1, with parts such as the dust collection tube, the inner tube, etc. omitted for clarity;

FIG. 7 is a schematic view of the rotary drive assembly of the inner tube of the embodiment of FIG. 1, with the guide sleeve and the like omitted for clarity;

FIG. 8 is a schematic perspective view of the inner tube of the embodiment of FIG. 1;

FIG. 9 is a schematic perspective view of the switching sleeve of the embodiment of FIG. 1;

Fig. 10 is a schematic view of a combination of a switching sleeve and a deflector sleeve of the embodiment of fig. 1;

FIG. 11 is a schematic view showing the spiral flow direction of the air flow in the passage in the purge air pipe;

FIG. 12 is a schematic view of the connection of the wire electrode of the embodiment of FIG. 1;

FIG. 13 is a schematic view of the electrode connection structure as viewed from the end of the dust collection tube;

FIG. 14 is a perspective view showing the structure of an ozone filter module in the air dust removing device of the embodiment shown in FIG. 1;

FIG. 15 illustrates the use of the air dedusting apparatus of the embodiment of FIG. 1 in other ducts;

FIG. 16 is a schematic view of the arrangement of the passages in the purge air duct according to another embodiment of the present invention;

FIG. 17 is a schematic view of the air treatment device of the present invention with components such as the drive control and high voltage generator inside the air treatment device omitted for clarity of the drawing;

FIG. 18 is a line graph showing the comparative effect of primary cleaning rate of the air treatment apparatus of the present invention at different wind speeds;

FIG. 19 is a line graph of the cleaning effectiveness versus time for the air treatment apparatus of the present invention in the high and low wind speed modes; and

FIG. 20 is a line graph showing the effect of ozone accumulation in the air treatment device of the present invention.

Description of the reference numerals

1 inner pipe 1a pipe body

1b center retainer part 1c outdoor ventilation opening

1d indoor ventilation opening 2 switching blocking sleeve

2a sleeve part 2b sleeve end face disc

2c outdoor air communication port 2d indoor air communication port

2e electrode wire fixing seat 2f connecting pin seat

3 diversion sleeve 4 diversion plate

5 dust collecting pipe 6 annular pipe cavity

7 indoor air inlet channel of rotary connecting sleeve 8

9 air inlet pipe air inlet 10 rotary connecting piece

11 gear drive 11a worm gear mechanism

11b drive gear 11c first driven gear

11d second driven gear 12 drive control device

13 installing frame 14 ozone filter module

15 air suction device 16 high-pressure generator

17 housing 18 mounting sleeve

19 primary screen 20 primary baffle

21 electrode line 22 buckle connection structure

22a bayonet 23 dust collecting tube electrode point

24 wire electrode contact 25 first current guiding flange

26 second deflector flange 27 mounting wall

28 outer shaft end limiting structure 29 inner shaft end connecting pipe

141 electric control module 142 ozone sensor

171 replacement valve 172 grating cover

outdoor air inlet A and indoor air inlet B

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like are generally described with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction. "inside and outside" refers to the inside and outside of a lumen, cavity, or chamber.

as described above, in order to realize the dual operation modes, and the whole device has a compact structure, a small occupied space, and stable and reliable working performance, the invention provides a novel air treatment device, in particular a dual-cycle wall-embedded hole type air treatment device, which comprises an air pipe and an indoor machine body exposed indoors, as shown in fig. 17. Particularly, the present invention forms a clean air duct inner passage through which outdoor air passes and an indoor air duct inner passage through which indoor air circulates in the air duct, so that there are no scattered air inlet duct, exhaust duct, etc., and the whole structure is simple and compact, as shown in fig. 3 to 5. At this time, the indoor unit body is provided with a purified air outlet, an indoor air inlet, and an air suction device 15. The air duct may be a common air inlet duct of various air processing equipment, but in the following description with reference to the drawings, the air duct is preferably a wall penetrating duct embedded in a wall opening.

The air treatment equipment further comprises an air channel switching device and an air purification device, wherein the air channel switching device is used for selectively and exclusively conducting a channel in the indoor air pipe or purifying a channel in the indoor air pipe, so that the air treatment equipment is correspondingly switched to work in an internal circulation working mode or an induced air working mode; namely:

In the internal circulation working mode, indoor air enters an indoor air pipe channel from an indoor air inlet under the action of the air suction device 15, is purified by the air purification device and then is discharged to the indoor from a purified air outlet;

In the induced air operation mode, the outdoor air enters the channel in the purified air pipe from the outer shaft end of the air pipe (i.e. the right end of the paper surface shown in fig. 1 and 2, the same applies below) under the action of the air suction device 15, and is purified by the air purification device and then is discharged to the indoor from the purified air outlet.

after the air pipe is internally provided with the air purifying pipe channel and the indoor air pipe channel, the air flow has longer circulation path, even under the powerful suction action of the air suction device 15, the air flow can obtain good buffering in the air purifying pipe channel or the indoor air pipe channel in the air pipe, the impact on the whole machine is small, even if the impact is generated, the impact is mainly reflected in the wall-through type fixedly installed air pipe, and the impact vibration on the whole machine is small.

In addition, the air suction device 15 in the embodiment of fig. 1 is preferably a single axial flow fan, and the clean air outlet of the air treatment device and the axial flow fan are axially aligned with the inner axial end of the air duct, because the clean air duct inner channel and the indoor air duct inner channel are both integrated in the air duct, and the air flow outlet is at the inner axial end of the air duct, so that only a single blower needs to be arranged at the inner axial end of the air duct, instead of the double blower structure of the conventional double circulation air treatment device, in other words, the blower can be shared, so that the structural integration is high. In addition, as will be described below, since the passages in the clean air duct and the passages in the indoor air duct are compactly arranged in the air duct, the air flow path is long, and the air cleaning apparatus is also compactly arranged.

In order to design a channel in a purified air pipe and a channel in an indoor air pipe which are compact in structure, long in path and capable of being switched timely, a person skilled in the art easily thinks of adopting a form of internally arranging double parallel pipes or more than double parallel pipes in the air pipe, but the pipe diameter of the air pipe is inevitably required to be large so as to meet the air volume requirement. In order to achieve compact structure and maximize the increase of air intake, the wall-embedded hole type air treatment equipment adopts a sleeve structure comprising an inner pipe 1 and an outer pipe, wherein any one of annular pipe cavities 6 between the inner pipe cavity and the outer pipe is an air purification pipe inner channel, namely, outdoor air can enter the inner pipe cavity or the annular pipe cavity 6 from the outer shaft end of an air pipe and then flows out from the corresponding inner shaft end.

At this time, the other of the inner tube lumen and the annular lumen 6 constitutes an indoor air tube inner passage or at least a part of the indoor air tube inner passage. In the double working modes, when the channel in the air purifying pipe is communicated to enter outdoor air, the channel in the indoor air pipe needs to be closed, and similarly, when the channel in the indoor air pipe is communicated, the channel in the air purifying pipe needs to be closed. At this time, considering that the indoor air inlet in the internal circulation mode is arranged in the indoor machine body, the reasonable air duct arrangement mode is that the air duct can only enter from the inner shaft section of the air duct and then flow out from the inner shaft end in a back-winding mode. Thus, the indoor air duct channel may comprise the inner duct lumen and the annular duct lumen 6 of the inner duct 1, and the indoor air entering from the indoor air inlet enters the duct via the inner shaft end of one of the inner duct lumen and the annular duct lumen 6, and then may enter the other one of the inner duct lumen and the annular duct lumen from the outer shaft end, and preferably flows out from the inner shaft end of the other one. Therefore, the flow is longer, and at least part of channels in the air pipe are the common flowing part of the indoor air and the outdoor air under the working mode of internal circulation or induced air, so that the air purification device is convenient to compactly arrange and only needs to be arranged in the common flow channel.

On this basis, in order to realize the in-time switching of the indoor air duct channel and the air-purifying duct channel, the air duct switching device should include two controllable switching valves, namely an induced draft valve capable of being opened in time to introduce outdoor air and a communicating valve capable of being opened in time to communicate the inner duct cavity with the annular duct cavity 6 (thereby constituting a complete indoor air duct channel), according to the functional principle. The induced air valve is arranged at the end face of the outer shaft end of the channel in the purified air pipe, and the inner shaft end of the channel in the purified air pipe is communicated with the air suction device 15 to provide power for sucking air. Meanwhile, the inner shaft end of the other one of the inner tube lumen and the annular lumen 6 communicates with the indoor air inlet, and the communication valve should be disposed between the outer shaft end of the inner tube lumen and the outer shaft end of the annular lumen 6.

In the embodiment shown in fig. 1, the annular lumen 6 is selected to be a passageway within the purge air tube. In this case, the inner pipe 1 is an inner circulation intake pipe communicating with an indoor air inlet. Referring to fig. 2, at this time, the outdoor intake air a flows into the annular tube cavity 6 from outside to inside, the indoor intake air B enters from the inner shaft end of the inner tube cavity, turns into the annular tube cavity 6 at the outer shaft end of the inner tube cavity, and finally flows out from the inner shaft end of the annular tube cavity 6.

Referring to fig. 8 and 9, the present invention also provides an air duct switching device of a preferred structure, which can realize the common functions of the air inducing valve and the communication valve through simple rotation control. Specifically, the air duct switching device includes an outer axial end portion of an inner tube 1 and a switching sleeve 2 fitted thereto.

First, an inner tube end face disc is connected to an outer shaft end of the inner tube 1 in fig. 8, a central blocking disc portion 1b of the inner tube end face disc blocks an outer shaft end face of the inner tube 1, an outer ring portion of the inner tube end face disc covers an outer shaft end face of the annular tube cavity 6 and is provided with an outdoor vent 1c communicated with the annular tube cavity 6, and an indoor vent 1d communicated with the annular tube cavity 6 is arranged on a tube body peripheral wall of the outer shaft end of the inner tube 1.

Next, the switching sleeve 2 in fig. 9 includes a sleeve portion 2a and a sleeve end face disk 2b connected to an outer end face of the sleeve portion 2a, the sleeve end face disk 2b is provided with a central through hole adapted to pass the inner tube 1 therethrough, an outer peripheral edge portion of the sleeve end face disk 2b is provided with an outdoor air communication port 2c, and an outer peripheral wall of the sleeve portion 2a is provided with an indoor air communication port 2 d.

finally, during assembly, the switching retaining sleeve 2 is fixedly sleeved at the outer shaft end of the inner tube 1, one of the switching retaining sleeve and the outer shaft end can rotate, and the other switching retaining sleeve and the outer shaft end are relatively fixed. The switching stop sleeve 2 is sleeved in from the inner shaft end of the inner pipe 1, and the end surface disc 2b of the stop sleeve is tightly attached to the inner side of the end surface disc of the inner pipe. Thus, the relative rotational engagement between the sleeve portion 2a of the switching sleeve 2 and the outer peripheral wall of the pipe body at the outer axial end of the inner pipe 1 constitutes the communication valve. Specifically, taking as an example the case where the inner tube 1 is rotated and the switching sleeve 2 is fixed in the embodiment of fig. 1, the inner tube 1 is rotated relative to the switching sleeve 2 and can be successively brought into a first rotational position in which the outdoor vent port 1c is aligned with the outdoor air communication port 2c and communicated and the indoor vent port 1d and the indoor air communication port 2d are staggered from each other and closed, and a second rotational position in which the indoor vent port 1d is aligned with the indoor air communication port 2d and the outdoor vent port 1c and the outdoor air communication port 2c are staggered from each other and closed.

To realize the rotation switching, a simpler manner is as shown in fig. 8 and 9, where the outdoor vents 1c and the indoor vents 1d at the outer shaft end of the inner tube 1 are the same in number and are arranged at equal intervals in the circumferential direction and are arranged in one-to-one correspondence in the circumferential position, and the outdoor air communication ports 2c and the indoor air communication ports 2d on the switching baffle sleeve 2 are the same in number and are arranged at equal intervals in the circumferential direction but are staggered by a certain reasonable angle in the circumferential position, that is, the distribution rings of the outdoor air communication ports 2c and the distribution rings of the indoor air communication ports 2d are staggered in the circumferential position, so as to realize the rotation switching function. Of course, the same effect can be obtained by aligning the communication ports of the switching sleeve 2 and staggering the ventilation ports at the outer shaft end of the inner pipe 1. Namely, the outdoor air communication ports 2c and the indoor air communication ports 2d at the outer shaft end of the switching retaining sleeve 2 are the same in number and are arranged at equal intervals along the circumferential direction, and the outdoor air communication ports 2c and the indoor air communication ports 2d are arranged in one-to-one correspondence in the circumferential position; the outdoor vents 1c and the indoor vents 1d on the inner pipe 1 are the same in number and are arranged at equal intervals along the circumferential direction, and the distribution rings of the outdoor vents 1c and the distribution rings of the indoor vents 1d are staggered in the circumferential direction.

In order to realize the rotation switching control between the inner tube 1 and the switching retaining sleeve 2, the air channel switching device further comprises a rotation driving assembly, and the rotation driving assembly is connected with the inner shaft end of the inner tube 1 so as to control the rotation of the inner tube 1.

Referring to fig. 6 and 7, as a preferred example, the rotary driving assembly includes a driving control device 12 for sequentially controlling transmission, a gear transmission mechanism 11 and a rotary connecting member 10, wherein the rotary connecting member 10 is connected to an inner shaft end of the inner tube 1, so as to accurately control the rotary opening of the inner tube 1 by using the accuracy of the gear driving mechanism. Wherein, the driving control device 12 is preferably an electric control device, such as a motor, etc., the gear transmission mechanism 11 may include a worm gear 11a, a driving gear 11b and a driven gear, which may be a combined first driven gear 11c and a second driven gear 11d, an output shaft of the driven gear is connected to the rotary connector 10, the rotary connector 10 includes a rotary connecting sleeve 7, one shaft end of the rotary connecting sleeve 7 is connected to an output shaft of the gear transmission mechanism 11, and the other shaft end is connected to an inner shaft end of the inner tube 1, preferably, as shown in fig. 7, a detachable snap connection is formed by a snap connection structure 22 and a bayonet 22a of the inner shaft end of the inner tube 1 in fig. 8. Of course, the present disclosure is only examples, and those skilled in the art can conceive more electric control modes and electric control structures to obtain the same, similar or better rotation control effect, and the details are not described herein.

The indoor unit body comprises an outer cover 17 connected with the air pipe, a mounting frame body 13 is fixedly arranged in the outer cover 17, and the driving control device 12 and the gear transmission mechanism 11 can be mounted on the mounting frame body 13. Still be equipped with through indoor air inlet intercommunication indoor inlet air duct 8 in the indoor organism, indoor inlet air duct 8 is independent to be kept apart in the inner chamber and the annular tube chamber 6 of indoor organism, places indoor inlet air duct 8 in the rotary joint cover 7 in, for the intercommunication of realizing indoor inlet air duct 8 and inner tube lumen, link up one or more intake pipe air inlet 9 on rotary joint cover 7's the periphery wall, see fig. 5.

another important improvement of the present invention is the extension design of the air flow passage in the air duct to increase the buffering effect and facilitate the dust removal design, increase the dust removal time and enhance the effect. As shown in fig. 16, in one embodiment, a plurality of first guide flanges 25 and second guide flanges 26 are respectively provided on the inner peripheral wall of the passage in the purge air pipe at intervals in the axial direction and at both sides in the radial direction, and the respective first guide flanges 25 and second guide flanges 26 are sequentially staggered in the axial direction to form a purge air baffle passage. The guide flange is preferably a circular arc plate so that the outdoor air entering from the outer axial end of the channel in the purified air pipe flows out from the inner axial end of the channel in the purified air pipe in a baffling manner along the purified air baffling channel. Thus, fig. 16 achieves an effective lengthening of the flow channel in the form of a baffle.

In the embodiment shown in fig. 1, the air treatment device is provided with a spiral blade-shaped flow guide plate 4 shown in fig. 10 and 11 in the purge air pipe inner passage, the flow guide plate 4 extends spirally along the axial direction to form a purge air spiral passage, and the outdoor air entering from the outer axial end of the purge air pipe inner passage flows out from the inner axial end of the purge air pipe inner passage along the purge air spiral passage. Because the wind resistance is increased due to the arrangement of the guide plate 4 in the annular tube cavity 6, and the air resistance in the inner tube cavity is small, on the basis of ensuring the air flow circulation rate, in order to enable the axial flow fan to be in the optimal working point, namely the intersection point of the system resistance and the air volume, the cross section area of the annular tube cavity 6 is enlarged to introduce more air flow to eliminate the resistance influence, and the balance between the resistance and the air volume is obtained, the ratio of the cross section areas of the annular tube cavity 6 and the inner tube cavity is approximately 2-4, and the preferred embodiment of fig. 1 and 2 is 3. In fig. 10, the spiral deflector 4 is wound in the channel of the air purifying pipe for 3 turns, typically 2-5 turns. When coiling 3 circles, runner length has increased 4.5 times approximately, and the extension effect is outstanding, is favorable to air purification, improves purification efficiency.

Wherein, the guide plate 4 can be integrally processed, and can also be processed in sections and then assembled. In the embodiment of fig. 10, the air treatment device includes a flow guide sleeve 3, a flow guide plate 4 is mounted on the outer circumferential wall of the flow guide sleeve 3 in a spiral blade shape, and the flow guide sleeve 3 is sleeved on the inner pipe 1 and connected with the switching sleeve 2. The guide sleeve 3 is convenient for assembling and fixing the guide plate 4, and is convenient for the integral assembly of the air pipe and the installation arrangement of the switching sleeve 2, the subsequent electrode wire 21 and the like, which will be specifically mentioned below.

Another compact design of the invention is the arrangement of the air cleaning device. The dust removing method is various, and in the embodiment shown in fig. 12 and 13, the electrostatic dust removing method is preferably used in view of the compactness of the structure, the installation space, the dust removing effect, and the like. Wherein, the outer tube includes dust collecting tube 5 that can be electrified, and air purification device is including arranging the electrostatic precipitator structure in the air-purifying duct intraductal passageway, and the electrostatic precipitator structure includes high voltage generator 16, electrode line 21 and dust collecting tube 5, and electrode line 21 extends and passes each guide plate 4 along the axial, and one electricity of electrode line 21 and dust collecting tube 5 connects the positive pole of high voltage generator 16, and another electricity connects the negative pole of high voltage generator 16. In this way, airborne dust particles in the passage in the purge air duct are charged by the electrode wire 21, and are adsorbed to the dust collecting duct 5 sooner or later when flowing in the long purge air spiral passage, thereby obtaining an air purge effect. Obviously, in the electrostatic dust collection structure, the electrode wire 21 is convenient to arrange, the space structure is compact, air dust particles are easy to be adsorbed by electrification, the dust collection channel is long, the dust collection effect is more prominent, the anode and the cathode of the high-voltage generator can be replaced, namely, the electrode wire 21 can be connected to the anode or the cathode, and the dust collection pipe 5 can be correspondingly connected to the cathode or the anode. When the electrode wire 21 is connected with the negative electrode, the discharge is called as negative electrode discharge, the breakdown voltage is high, and the breakdown is not easy to occur; when connected to the positive electrode, the discharge is called positive electrode discharge, and the ozone generation is less than that of the negative electrode discharge, and the breakdown voltage is low. The embodiments of the present invention, which are combined with the drawings, all employ negative electrode discharge.

In order to form a circular uniform charged field, the electrode wires 21 are preferably multiple and equally spaced along the circumferential direction of the flow guide sleeve 3. In FIG. 13, the density distribution of 4 is preferable, and 3 to 6 are typical. When the channel in the air purifying pipe is the annular pipe cavity 6, the diameter of the cylinder surrounded by the plurality of electrode wires 21 should be larger than the outer diameter of the inner pipe 1, and the electrode wires 21 should be closer to and close to the inner pipe 1 relative to the collector pipe 5 to obtain a larger electric field. In the present invention, the diameter of the cylinder surrounded by the plurality of electrode wires 21 is generally not more than 80% of the inner diameter of the dust collecting pipe 5, and the radial distance of the electrode wires 21 from the dust collecting pipe 5 should be not less than 1 cm. The diameter of the cylinder surrounded by the electrode wires 21 is certainly larger than the outer diameter of the inner pipe 1, and is generally not smaller than 40% of the inner pipe diameter of the dust collecting pipe 5 because of the passage in the purified air pipe. In the embodiment of fig. 13, the diameter of the enclosed cylinder is preferably 60% of the inner diameter of the dust collecting pipe 5, and the electric field dust removing effect is excellent.

The electrode wire 21 may be made of metal, and has a diameter of 0.008-0.5mm, for example, a tungsten wire with a diameter of 0.2mm is preferred to facilitate high-voltage discharge. The finer the electrode wire 21, the better the discharge effect, but the higher the cost of the finer, the less easy to machine and the easy to stretch break, so its diameter is preferably 0.08-0.2 mm. In length, the electrode wire 21 is straightened along the axial direction and the axial length is not more than the length of the dust collecting tube 5, preferably, the axial length of the electrode wire 21 can be 5-15mm shorter than the length of the dust collecting tube 5, and the ionized dust particles can be ensured to be adsorbed on the inner side of the dust collecting tube 5. One end of the electrode wire 21 is fixedly connected with an insulated wire electrode fixing seat 2e, see fig. 9 and 12, and the other end can be electrically connected with the high voltage generator 16 through a wire electrode contact 24. In fig. 13, since there are 4 wires 21, two sets are used, each set being bolted to two wire contacts 24 with one electrode pad. Likewise, the dust tube 5 can be connected to an electrode terminal of the high voltage generator 16 via a dust tube electrode point 23 at the inner axial end.

The dust collecting pipe 5 is preferably a conductive metal pipe, such as an aluminum alloy pipe, which is easy to conduct electricity, collect dust and clean, and the diversion sleeve 3, the diversion plate 4 and the switching sleeve 2 are all made of insulating materials to prevent short circuit. The high voltage generator 16 may be disposed in an indoor body, such as the mounting frame 13, and connected to the wire electrode 21 and the dust collecting pipe 5 through wires. Alternatively, when the inner pipe 1 is an insulating material pipe, the high voltage generator 16 may be provided in the inner pipe 1 as shown in fig. 15. The higher the discharge voltage of the high voltage generator 16, the higher the purification efficiency, but the more ozone is generated. Therefore, the voltage is preferably 5 to 9KV, more preferably about 8KV, and the purification efficiency and the ozone generation amount are acceptable.

Above-mentioned take helical coiled passage's bushing structure and electrostatic precipitator structure thereof has not only increased the flow, has prolonged the electrostatic precipitator time, obtains better dust removal effect, and the centrifugal force that the spiral flow brought moreover can be with higher speed electrified dust and adsorbed in the internal perisporium of dust collecting tube 5. The sleeve structure with the spiral channel and the electrostatic dust removal structure thereof can be applied to air pipes of various air treatment devices to realize dust removal in a small space. As shown in FIG. 15, the air in the pipe can be purified by replacing one section of the pipe, and the highest dust removal efficiency can reach more than 95%. The electrostatic dust collection structure can be detached and cleaned independently.

Because the high-voltage discharge dust removal process inevitably generates ozone, in order to further purify the air, the air purification device also comprises an ozone filtering module 14 which is arranged at one side of the downstream of the electrostatic dust removal structure. Therefore, the ozone filter module 14 is disposed in an indoor unit in a room, and an axially outer side of the ozone filter module 14 is aligned with an inner axial end of the air duct at an interval, and an axially inner side is disposed with the air suction device 15. The suction force of the air suction device 15 enables the primary purified air dedusted in the annular tube cavity 6 to pass through the ozone filtering module 14, and after ozone removal, the primary purified air is exhausted to the indoor from the exhaust port by the air suction device 15.

In a preferred structure, the ozone filter module 14 is a metal honeycomb structure formed with honeycomb holes, preferably made of aluminum, the metal honeycomb structure has high compactness, small installation space and large surface area, and has a surface coating for catalyzing ozone decomposition, and air flowing through the honeycomb holes reacts with the surface coating to decompose ozone. Such an ozone filter module 14 may be in the form of a single plate and a single stage, but may be provided as a multi-stage ozone filter module 14 stacked between the inner shaft end of the air duct and the air suction device 15, as required.

As shown in fig. 14, the ozone filtering module 14 may further include an electronic control module 141 and an ozone sensor 142, the ozone sensor 142 is disposed at the air outlet side of the ozone filtering module 14, and the electronic control module 141 is configured to compare the ozone content signal detected by the ozone sensor 142 with an upper threshold of the ozone content and send a warning signal when determining that the ozone exceeds the standard. Thus, the user can be fed back whether to replace the ozone filter module 14 in time according to the real-time monitoring of the ozone. To avoid the warning failure, the electronic control module 141 may also be connected to a backup battery.

in order to replace the ozone filter module 14, the outer cover 17 on the top of the indoor unit is provided with a replacement valve 171 located right above the ozone filter module 14, as shown in fig. 14, so that the ozone filter module 14 can be disassembled and assembled by opening the replacement valve, and only upward extraction is needed.

in another alternative, the air suction device 15 is an axial fan, and the axial fan and the ozone filter module 14 are respectively mounted on two sides of a mounting bracket of the axial fan, and the two can be mounted on the mounting bracket by screws or the like, so as to form an independent fan module. The mounting bracket is fixedly mounted in the indoor unit. A purified air outlet is opened in the housing 17 of the indoor unit, and a grill cover 172 is detachably attached to the purified air outlet, as shown in fig. 3, 4, and 14. The profile of the purified air outlet and the grille cover 172 is large enough so that the air suction device 15 and the air cleaning device mounted in the housing 17 can be taken out of the purified air outlet, facilitating the replacement of the ozone filter module 14 and even the entire individual fan module.

in addition, to protect the exposed outer axial end of the through-wall pipe, the outer axial end of the mounting sleeve 18 is fitted with a primary baffle 20 and/or a primary screen 19. The primary baffle 20 may be a sealing plate, which is controlled to open at a proper time, or a grid plate, etc. The primary baffle 20 may block bugs, rain, etc. Primary filter screen 19 can filter great foreign matter, like leaf, wastepaper etc. and the inside jam that does not produce of guarantee equipment can normally work for a long time.

On the basis of the air treatment equipment, the invention also correspondingly provides an air treatment system which comprises a mounting wall 27 provided with a wall opening, and the air pipe of the dual-cycle wall-embedded hole type air treatment equipment is embedded in the wall opening, as shown in fig. 17.

The outer pipe comprises a mounting sleeve 18 sleeved outside the dust collecting pipe 5, the mounting sleeve 18 and the dust collecting pipe are in clearance fit with each other with a difference of about 1-2mm, the mounting sleeve 18 is firstly embedded in a wall hole in a mounting wall 27, the outer end of the mounting sleeve 18 penetrates out of the wall hole, a peripheral flange attached to the inner wall surface of the mounting wall is formed at the inner end of the mounting sleeve 18, the indoor unit body comprises an outer cover 17, and the outer cover 17 is fixedly connected with the peripheral flange of the mounting sleeve 18. This forms a plug-in mounting of the air treatment device.

Specifically, the outer axial end of the mounting sleeve 18 is provided with an outer axial end stop 28, such as an annular bead with a raised inner wall. During assembly, the dust collecting pipe 5, the switching baffle sleeve 2, the guide plate 4, the guide sleeve 3 and the inner pipe 1 can be sequentially embedded in the mounting sleeve 18, and the outer ends of the dust collecting pipe are abutted to the outer shaft end limiting structure 28 to achieve outer end axial positioning. The outer end of the deflector sleeve 3 may be connected to a connecting pin boss 2f of the switching sleeve 2 shown in fig. 9 by a connecting pin. In addition, the air treatment equipment also comprises an inner end positioning sleeve 29, after the pipes are embedded, the inner end positioning sleeve 29 is embedded into the inner shaft end of the installation sleeve 18, and the embedded pipe sections of the inner end positioning sleeve 29 are respectively abutted against the dust collecting pipe 5, the flow guide sleeve 3 and the inner pipe 1 so as to realize the axial positioning of the inner ends of the pipes.

During installation, for the installation is steady firm, the preferred slope installation of installation sleeve 18, and the axle end of installing sleeve 18 is slightly higher for the outer axle head promptly, and the interior axle end is 3 ~ 5 for the horizontal lift angle of outer axle head usually. And the wall thickness of the mounting wall 27 should not be less than 25cm, and the aperture of the wall hole is not more than 15cm, for example, about 10cm, so as to realize a certain whole machine load bearing through the air duct and the mounting wall 27 with a considerable thickness.

In the preferred embodiment shown in fig. 1 and 5, the inner and outer sleeves are used, the annular tube cavity 6 is used as the inner channel of the purified air tube, the air channel switching device shown in fig. 8 and 9, the spiral guide plate 4 shown in fig. 10, and the air purification device for electrostatic dust removal and ozone removal shown in fig. 12 to 14 are arranged, and after being mounted on the mounting wall 27 shown in fig. 17, the start-up test of the air treatment system of the present invention is performed.

FIG. 18 is a line graph showing the comparative effect of primary cleaning rate of the air treatment system of the present invention at different wind speeds; FIG. 19 is a line graph of the cleaning effectiveness versus time for the air handling system of the present invention in the high and low wind speed modes; FIG. 20 is a line graph illustrating the effect of ozone accumulation in an air treatment system according to the present invention. As can be seen from fig. 18, in the induced air operation mode, even if the PM2.5 concentration of the outdoor air is greater than 500ppb, the primary purification rate of the air treatment system of the present invention reaches at least 93% or more. Fig. 19 shows that the PM2.5 concentration can be significantly reduced from 500ppb to 100ppb or even lower within one hour, both at high and low wind speeds, until it reaches zero. It can be seen in fig. 20 that the cumulative ozone content of the indoor environment after the air treatment system of the present invention has been operated for a long period of time is significantly lower than the national standard.

In summary, the air treatment device and the air treatment system of the invention achieve at least the following objectives through a series of optimized designs:

1) And the volume is small: due to the modular design and the compact design in the air duct, the overall and local volume of the device is relatively small, and the device has little influence on the interior decoration of a home, especially a well-finished room.

2) And the installability is good: due to the compact design in the wall-through pipe, the pipe diameter is small, so that the installation can be realized only by forming a hole which is not more than 10cm on the wall body.

3) The primary filtering efficiency is high: due to the design of the spiral flow channel and the electrostatic dust removal device in the pipe, the flow channel is increased, the dust removal time is prolonged, the dust capture is enhanced by centrifugal force, the collection of pollutants such as PM2.5 in the air can be effectively promoted through the unique designs, and the dust removal rate can reach more than 95%.

4) And no consumable filtering: because the device adopts the modularized design of complete machine and part, easy dismounting, the filtering component can conveniently be taken out and installed, for example ozone filter module 14 just can wash, use repeatedly.

5) the use mode is various: the air-guiding device can realize two working modes of an air-guiding working mode for introducing external air and an internal circulation working mode for purifying indoor air.

6) Low power, low power consumption: because the low-power electrostatic dust collection and other filtering components and the single fan are adopted, the low-power operation can be realized.

7) the installation and maintenance are convenient: because the device adopts the modularized design of the whole machine and each part, the internal core components are mutually independent and can be respectively disassembled, replaced and maintained.

the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. For example, the rotation driving assembly for driving the inner tube 1 and the switching sleeve 2 to rotate relatively is not limited to a gear transmission structure and a gear transmission mode, and can be simply modified, and an alternative winding drum mode is adopted for rotation control, namely the inner tube 1 is regarded as a drum, the control line is wound on the outer peripheral wall of the inner shaft end, the control line is stretched along the radial direction, and the accurate rotation angle of the inner tube 1 can be controlled according to the accurately characterized stretching amount.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. The air treatment equipment is characterized by comprising a wall penetrating pipe embedded in a wall hole and an indoor unit body exposed indoors, wherein the wall penetrating pipe comprises a mounting sleeve (18) embedded in the wall hole of a mounting wall (27), the outer end of the mounting sleeve (18) penetrates out of the wall hole, a peripheral flange attached to the inner wall surface of the mounting wall (27) is formed at the inner end of the mounting sleeve (18), the indoor unit body comprises an outer cover (17), the outer cover (17) is detachably and fixedly connected with the peripheral flange of the mounting sleeve (18), the wall penetrating pipe further comprises a dust collecting pipe (5) capable of being electrified and a hollow inner pipe (1) which are embedded in the mounting sleeve (18), and an annular pipe cavity (6) is arranged between the dust collecting pipe (5) and the inner pipe (1);

the outer shaft end of the inner pipe (1) is connected with an inner pipe end face disc, a central blocking disc part (1b) of the inner pipe end face disc blocks the outer shaft end face of the inner pipe (1), an outer ring part of the inner pipe end face disc covers the outer shaft end face of the annular pipe cavity (6) and is provided with an outdoor vent (1c) communicated with the annular pipe cavity (6), and an indoor vent (1d) communicated with the annular pipe cavity (6) is arranged on the outer peripheral wall of the pipe body of the outer shaft end of the inner pipe (1);

The wall-penetrating pipe is also internally provided with a switching retaining sleeve (2), the switching retaining sleeve (2) comprises a sleeve part (2a) and a retaining sleeve end surface disc (2b) connected to the outer end surface of the sleeve part (2a), the retaining sleeve end surface disc (2b) is provided with a central through hole suitable for the inner pipe (1) to pass through, the outer peripheral edge of the retaining sleeve end surface disc (2b) is provided with an outdoor air communicating opening (2c), and the outer peripheral wall of the sleeve part (2a) is provided with an indoor air communicating opening (2 d);

Switch the fixed cover of spacer sleeve (2) and locate the outer axle head of inner tube (1), spacer sleeve end face dish (2b) hug closely in the inboard of inner tube end face dish, inner tube (1) can for switch spacer sleeve (2) rotatory and first rotatory position and the rotatory position of second first rotatory position, outdoor vent (1c) with outdoor air intercommunication mouth (2c) align the intercommunication just indoor vent (1d) and indoor air intercommunication mouth (2d) stagger each other and seal the rotatory position of second, indoor vent (1d) with indoor air intercommunication mouth (2d) align the intercommunication just outdoor vent (1c) and outdoor air intercommunication mouth (2c) stagger each other and seal.

2. The air treatment apparatus according to claim 1, wherein a purified air outlet is opened in the outer cover (17) in axial alignment with the through-wall pipe, an air suction device (15) is provided in the indoor unit in axial alignment with the through-wall pipe, and the purified air outlet is fitted with a detachable grill cover (172) so that the air suction device (15) can be taken out from the purified air outlet.

3. An air treatment device according to claim 2, characterized in that the air suction means (15) is an axial fan comprising a blade part and a mounting bracket, the blade part being mounted on a side of the mounting bracket facing the grille cover (172), the air treatment device further comprising an ozone filter module (14), the ozone filter module (14) being detachably mounted on a side of the mounting bracket facing the through-wall duct, the mounting bracket being detachably mounted within the housing (17).

4. The air treatment device according to claim 2, further comprising an ozone filter module (14), wherein a replacement valve (171) is arranged on the outer cover (17) on the top of the indoor machine body and is positioned right above the ozone filter module (14), and the ozone filter module (14) can be detached through the replacement valve (171) which is opened.

5. The air treatment equipment according to claim 1, wherein an electrostatic dust collection structure is arranged in the annular tube cavity (6), the electrostatic dust collection structure comprises a high voltage generator (16), an electrode wire (21) and a dust collection tube (5), the electrode wire (21) extends along the axial direction of the through-wall tube, one of the electrode wire (21) and the dust collection tube (5) is electrically connected with the positive pole of the high voltage generator (16), and the other one is electrically connected with the negative pole of the high voltage generator (16);

Wherein, the wall pipe still includes water conservancy diversion cover (3) and guide plate (4), water conservancy diversion cover (3) cover is located on inner tube (1), guide plate (4) are the spiral blade form install in on the periphery wall of water conservancy diversion cover (3) and butt the inner wall of dust collecting tube (5) is in order to form air-purifying helical passage, many electrode line (21) are followed the circumference of water conservancy diversion cover (3) is equidistant arranges and passes guide plate (4).

6. the air treatment device according to claim 1, characterized in that the outer axial end of the mounting sleeve (18) is provided with an outer axial end limiting structure (28), the outer ends of the dust collecting tube (5), the switching collar (2) and the inner tube (1) abutting against the outer axial end limiting structure (28); the air treatment equipment further comprises an inner end positioning sleeve (29) connected with a peripheral flanging of the mounting sleeve (18), the inner end positioning sleeve (29) is embedded into an inner shaft end of the mounting sleeve (18) to axially position the dust collecting pipe (5), the flow guide sleeve (3) and the inner pipe (1), and the flow guide sleeve (3) is in butt joint with the switching retaining sleeve (2).

7. The air treatment device according to claim 1, further comprising a rotary driving assembly, wherein the rotary driving assembly is connected with an inner shaft end of the inner pipe (1) to control the inner pipe (1) to rotate, the rotary driving assembly comprises a driving control device (12) for controlling transmission, a gear transmission mechanism (11) and a rotary connecting sleeve (7) in sequence, one shaft end of the rotary connecting sleeve (7) is connected with an inner shaft end of the inner pipe (1) in a snap-in mode, and the other shaft end of the rotary connecting sleeve is connected with an output shaft of the gear transmission mechanism (11).

8. The air treatment equipment according to claim 7, wherein the gear transmission mechanism (11) comprises a worm gear mechanism (11a), a driving gear (11b) and a driven gear which are sequentially transmitted, an output shaft of the driven gear is connected with the rotary connecting sleeve (7), the indoor unit body comprises an outer cover (17) connected with the wall penetrating pipe, a mounting frame body (13) is fixedly arranged in the outer cover (17), and the driving control device (12) and the gear transmission mechanism (11) are mounted on the mounting frame body (13).

9. The air treatment apparatus according to claim 1, wherein the mounting sleeve (18) is mounted at an angle, the inner shaft end of the mounting sleeve (18) being high with respect to the outer shaft end and having a horizontal lift angle of 3-5 °.