CN219713515U - Air pipe connecting structure and fresh air conditioner - Google Patents

Abstract

The utility model provides an air pipe connecting structure and a fresh air conditioner, wherein the air pipe connecting structure comprises a pipe joint and an air pipe, a connecting cavity and a joint partition board are arranged in the pipe joint, and the joint partition board divides the connecting cavity into a first connecting cavity and a second connecting cavity; an air cavity and an air pipe partition plate are arranged in the air pipe, and the air pipe partition plate divides the air cavity into a first air cavity and a second air cavity; one end of the air pipe is connected with the pipe joint in a plugging mode, the first air cavity is communicated with the first connecting cavity, the second air cavity is communicated with the second connecting cavity, and the air pipe partition plate and the joint partition plate are mutually attached along the radial direction of the air pipe. The air pipe connecting structure provided by the utility model can solve the technical problems that the existing air pipe integrating fresh air and exhaust air is low in installation efficiency or easy to cross air when being connected with an air conditioner body.

Description

Air pipe connecting structure and fresh air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an air pipe connecting structure and a fresh air conditioner.

Background

The existing fresh air conditioner can realize outdoor fresh air introduction and indoor waste air discharge, so that the indoor air quality is improved more efficiently, and the existing fresh air conditioners integrate fresh air and exhaust air into one air pipe so as to reduce the number of openings of wall penetrating holes. However, when the existing air pipe integrating fresh air and exhaust air is connected with an air conditioner body, two branch pipes are respectively connected with a fresh air cavity and an exhaust air cavity in the air pipe, so that cross air can be avoided, and the installation efficiency is still lower; or other schemes do not adopt two branch pipes, but are directly connected with a joint with a partition plate arranged inside, so that the installation efficiency can be improved, but the problem that wind is easy to flow when the connection is loose still exists.

Disclosure of Invention

The embodiment of the utility model provides an air pipe connecting structure, which aims to solve the technical problems that the existing air pipe integrating fresh air and exhaust air is low in installation efficiency or easy to cross air when being connected with an air conditioner body.

In order to achieve the above purpose, the air pipe connecting structure provided by the utility model comprises a pipe joint and an air pipe, wherein a connecting cavity and a joint partition board are arranged in the pipe joint, and the joint partition board divides the connecting cavity into a first connecting cavity and a second connecting cavity; an air cavity and an air pipe partition plate are arranged in the air pipe, and the air pipe partition plate divides the air cavity into a first air cavity and a second air cavity; one end of the air pipe is connected with the pipe joint in a plugging mode, the first air cavity is communicated with the first connecting cavity, the second air cavity is communicated with the second connecting cavity, and the air pipe partition plate and the joint partition plate are mutually attached along the radial direction of the air pipe.

Optionally, in an embodiment, the connecting cavity has a connecting cavity opening, the joint spacer has a front end and a rear end opposite along an axial direction of the pipe joint, the front end is located in the connecting cavity, and the front end is spaced from the connecting cavity opening; the first air cavity is provided with a first air cavity opening communicated with the first connecting cavity, the second air cavity is provided with a second air cavity opening communicated with the second connecting cavity, and the air pipe partition plate protrudes relative to the first air cavity opening and/or the second air cavity opening along the axial direction of the air pipe; one end of the air pipe is inserted into the pipe joint, and the air pipe partition plate extends into the connecting cavity and is mutually attached to the joint partition plate along the radial direction of the air pipe.

Optionally, in an embodiment, the first air cavity is used for air intake, the second air cavity is used for air exhaust, and a portion of the air pipe partition plate, which is attached to the joint partition plate, is located in the first connecting cavity.

Optionally, in an embodiment, the air duct includes a first arc-shaped plate, a second arc-shaped plate, and the air duct partition connected between the first arc-shaped plate and the second arc-shaped plate, the first arc-shaped plate and the air duct partition enclose the first air chamber, and the second arc-shaped plate and the air duct partition enclose the second air chamber; the air pipe partition plate and the first arc plate are protruded relative to the second air cavity opening along the axial direction of the air pipe, and a half pipe formed by the air pipe partition plate and the first arc plate is inserted in the first connecting cavity in an interference mode.

Optionally, in an embodiment, a first limiting slot is further formed in the joint partition, a first limiting clip is further formed in the air duct partition, and when the air duct partition and the joint partition are mutually attached in a radial direction of the air duct, the first limiting clip is clamped in the first limiting slot.

Optionally, in an embodiment, an end of the air pipe inserted into the connecting cavity is in interference fit with the connecting cavity; and/or, still be equipped with the protruding of second spacing card on the outer peripheral face of tuber pipe, still be equipped with the spacing draw-in groove of second on the inner wall of connecting the chamber, when the one end grafting of tuber pipe in the connecting the intracavity, protruding joint of second spacing card in the spacing draw-in groove of second.

Optionally, in an embodiment, the first arc plate and the second arc plate are respectively provided with the second limiting clamping protrusion, and the inner wall of the connecting cavity is respectively provided with a second limiting clamping groove at a position corresponding to the first arc plate and the second arc plate; and in the axial direction of the pipe joint, the axial distance from each second limiting clamping groove to the connecting cavity opening is different.

The utility model also provides a fresh air conditioner which comprises a machine body, a rear cover and the air pipe connecting structure in any embodiment, wherein the machine body is provided with a fresh air cavity and an exhaust cavity; the rear cover is arranged on the machine body and is provided with a fresh air communication port communicated with the fresh air cavity and an exhaust communication port communicated with the exhaust cavity; the pipe joint is integrally formed with the rear cover, the first connecting cavity is communicated with the fresh air communication port, and the second connecting cavity is communicated with the exhaust communication port.

Optionally, in an embodiment, the first connecting cavity is opposite to and communicated with the fresh air communication port along an axial direction of the pipe joint, an exhaust pipe is integrally formed on the rear cover, and the second connecting cavity is communicated with the exhaust communication port through the exhaust pipe.

Optionally, in an embodiment, the fresh air communication port is located at one side of the fresh air cavity, and the rear cover is further provided with a diffusion cavity between the fresh air communication port and the first connection cavity, where a cross-sectional area of the diffusion cavity is greater than a cross-sectional area of the first connection cavity and less than a cross-sectional area of the fresh air cavity.

The pipe joint in the air pipe connecting structure can be pre-installed on an air conditioner body, when the air pipe is connected with the pipe joint, one end of the air pipe is directly inserted into the pipe joint, so that the first air cavity in the air pipe is correspondingly communicated with the first connecting cavity in the pipe joint, and the second air cavity in the air pipe is correspondingly communicated with the second connecting cavity in the pipe joint, two branch pipes are not needed to be used for respectively connecting the first air cavity and the second air cavity, the assembly process is simple and rapid, and the installation efficiency is further improved. Meanwhile, when the air pipe is inserted into the pipe joint, the air pipe partition plate in the air pipe and the joint partition plate in the pipe joint are mutually attached along the radial direction of the air pipe, so that even if the air pipe and the pipe joint generate certain axial movement because of loose connection or incomplete connection, the air pipe partition plate and the joint partition plate are still attached, and further the air is not easy to cross between the first air cavity and the second air cavity. Meanwhile, it can be further understood that because the air pipe partition plate and the joint partition plate are mutually attached along the radial direction of the air pipe, the attaching surface is larger, so that air flow does not easily pass through the attaching gap between the air pipe partition plate and the joint partition plate and flows into the other air cavity, namely, air is not easily blown.

In conclusion, the air pipe connecting structure provided by the utility model not only can realize convenient installation between the air pipe and the pipe joint, but also has high installation efficiency, and can ensure that the air pipe and the pipe joint are not easy to generate air-crossing after being connected, so that the technical problem that the existing air pipe integrating fresh air and exhaust air is low in installation efficiency or easy to cause air-crossing when being connected with an air conditioner body can be solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a rear cover in an embodiment of a fresh air conditioner according to the present utility model;

FIG. 2 is a schematic rear view of the rear cover of FIG. 1;

FIG. 3 is a cross-sectional view of the rear cover of FIG. 1;

FIG. 4 is a schematic view of an embodiment of a duct in a duct connection structure according to the present utility model;

FIG. 5 is a partial cross-sectional view of the air duct of FIG. 4;

FIG. 6 is a cross-sectional view of an embodiment of the duct connection structure of the present utility model;

FIG. 7 is a schematic view of a fresh air path of an embodiment of the fresh air conditioner of the present utility model;

fig. 8 is a schematic diagram of an exhaust path of an embodiment of the fresh air conditioner of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						100	Air duct connecting structure	21	Wind cavity	310	Fresh air communication port
10	Pipe joint	211	First wind cavity	320	Air exhaust communication port
						11	Connecting cavity	2111	First wind cavity port	330	Exhaust duct
111	First connecting cavity	212	Second wind cavity	340	Diffusion cavity
						112	Second connecting cavity	2121	Second air cavity port	350	Fresh air outlet
113	Connecting cavity port	22	Air duct partition board	200	Body of machine
						12	Joint partition board	221	First limit clamp protrusion	210	Fresh air cavity
121	Front end	23	First arc-shaped plate	220	Exhaust cavity
						122	Rear end	24	Second arc plate	230	Fresh air wind wheel
123	First limit clamping groove	25	Second limit clamp protrusion	240	Exhaust wind wheel
						13	Second limit clamping groove	1000	Fresh air conditioner
20	Air duct	300	Rear cover

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The embodiment of the utility model provides an air pipe connecting structure for solving the problems that an existing air pipe integrating fresh air and exhaust air is low in installation efficiency or easy to cross air when being connected with an air conditioner body, and the air pipe connecting structure is described below with reference to the accompanying drawings.

In the embodiment of the present utility model, as shown in fig. 1 to 3, the air duct connection structure 100 includes a pipe joint 10, where the pipe joint 10 can be installed on the machine body 200 of the fresh air conditioner 1000, and a specific installation mode can be flexibly set according to needs, for example, can be screwed, clamped, adhered, integrally formed with the rear cover 300 of the machine body 200, and the like. The pipe joint 10 is internally provided with a connecting cavity 11 and a joint partition plate 12, and the pipe joint 10 and the connecting cavity 11 inside the pipe joint 10 can be designed according to the size and shape of the pipe joint according to practical situations, so long as the pipe joint can be matched and connected with the air pipe 20, for example, in the embodiment, the pipe joint 10 is a circular pipe, and the connecting cavity 11 inside the pipe joint 10 is a circular cavity. Referring to fig. 3, the joint spacer 12 divides the connection chamber 11 into a first connection chamber 111 and a second connection chamber 112, and in particular, the joint spacer 12 is connected to an inner wall of the connection chamber 11 and extends parallel to an axial direction of the pipe joint 10, and the connection chamber 11 may be divided into the first connection chamber 111 and the second connection chamber 112 with the joint spacer 12 as a boundary. The first connection cavity 111 and the second connection cavity 112 may be respectively communicated with the fresh air cavity 210 and the air exhaust cavity 220 of the air conditioner body 200, for example, in this embodiment, the first connection cavity 111 is communicated with the fresh air cavity 210 in the air conditioner body 200, and the second connection cavity 112 is communicated with the air exhaust cavity 220 in the air conditioner body 200.

It should be noted that, as shown in fig. 1 or fig. 3, the connection cavity 11 has a connection cavity opening 113, and the joint partition 12 in the connection cavity 11 may be completely located in the connection cavity 11 without protruding from the connection cavity opening 113, or may have one end protruding from the connection cavity opening 113, and the specific arrangement mode needs to be designed in cooperation with the air duct 20. When the pipe joint 10 is installed on the air conditioner body 200, the first connecting cavity 111 may be directly and oppositely communicated with the fresh air communication port 310 of the fresh air cavity 210, or the communication between the first connecting cavity 111 and the fresh air cavity 210 may be realized through a preset pipeline; similarly, the second connection cavity 112 may be directly and relatively communicated with the exhaust communication port 320 of the exhaust cavity 220, or may be communicated with the exhaust cavity 220 through a preset pipe.

As shown in fig. 4 and 5, the air duct connection structure 100 further includes an air duct 20, where the size, shape, extension length, etc. of the air duct 20 can be flexibly designed according to needs, an air chamber 21 and an air duct partition 22 are disposed in the air duct 20, the air duct partition 22 partitions the air chamber 21 into a first air chamber 211 and a second air chamber 212, as shown in fig. 6, one end of the air duct 20 is connected with the pipe joint 10 in an inserting manner, one end of the air duct 20 can be sleeved outside the pipe joint 10 or inserted in the pipe joint 10, and when in an inserting manner, the first air chamber 211 is communicated with the first connection chamber 111, the second air chamber 212 is communicated with the second connection chamber 112, that is, the first air chamber 211 is communicated with a fresh air chamber 210 in the machine body 200, the first air chamber 211 is used for sucking fresh air from outside, the second air chamber 212 is communicated with an exhaust chamber 220 in the machine body 200, and the second air chamber 212 is used for exhausting indoor polluted air outside the air outside.

In addition, in this embodiment, when one end of the air duct 20 is in plug connection with the pipe joint 10, the air duct partition 22 and the joint partition 12 are attached to each other along the radial direction of the air duct 20, and there may be various ways of implementing "the air duct partition 22 and the joint partition 12 are attached to each other along the radial direction of the air duct 20".

For example, in one embodiment, as shown in fig. 6, the outer diameter of the air duct 20 is smaller than the inner diameter of the pipe joint 10, and when the air duct 20 is plugged, one end of the air duct 20 is plugged into the connecting cavity 11 of the pipe joint 10. And in order to avoid the joint spacer 12 in the connection chamber 11 from obstructing the insertion of the air duct 20, the joint spacer 12 is shortened into the connection chamber 11 to avoid, specifically, referring to fig. 3, the connection chamber 11 has a connection chamber port 113, the joint spacer 12 has a front end 121 and a rear end 122 opposite to each other along the axial direction of the pipe joint 10, the front end 121 is located in the connection chamber 11, and the front end 121 is spaced from the connection chamber port 113 along the axial direction of the pipe joint 10, and the rear end 122 of the joint spacer 12 may extend to a position capable of completely separating the first connection chamber 111 and the second connection chamber 112. For the structure of the air duct 20, the air duct partition 22 is required to protrude forward so as to extend to one side of the joint partition 12 and to be attached to the joint partition 12, specifically, referring to fig. 4 and 5, in this embodiment, the first air chamber 211 has a first air chamber port 2111 communicating with the first connection chamber 111, the second air chamber 212 has a second air chamber port 2121 communicating with the second connection chamber 112, and the air duct partition 22 protrudes in the axial direction of the air duct 20 with respect to the first air chamber port 2111 and/or the second air chamber port 2121, for example, as shown in fig. 4, the air duct partition 22 protrudes only with respect to the second air chamber port 2121 and is flush with the first air chamber port 2111. Of course, the air duct partition 22 may be protruded relative to the first air cavity port 2111 and flush with the second air cavity port 2121 as required; alternatively, the duct partitions 22 may be protruded from both the first and second air chamber ports 2111 and 2121. So far, according to the above-described construction scheme, as shown in fig. 6, when one end of the air duct 20 is plugged into the pipe joint 10, the front end 121 of the joint partition 12 is located in the connecting cavity 11, so that the air duct 20 is not blocked from being plugged, and because the partition protrudes relative to the first air cavity port 2111 and/or the second air cavity port 2121, when the front end 121 of the joint partition 12 abuts against the cavity edge of the first air cavity 211 or the second air cavity 212, the air duct partition 22 may still extend to one side of the joint partition 12, so that the air duct partition 22 and the joint partition 12 may be attached to each other along the radial direction of the air duct 20.

For example, in still another embodiment, the inner diameter of the air duct 20 may be larger than the outer diameter of the pipe joint 10, and one end of the air duct 20 is sleeved outside the pipe joint 10 when the air duct is plugged. In order to avoid the air duct partition 22 from obstructing the insertion of the joint partition 12, the air duct partition 22 needs to be shortened into the air chamber 21 to avoid the joint partition 12 from protruding from the first connecting chamber 111 and/or the second connecting chamber 112, so as to ensure that the joint partition 12 can extend to one side of the air duct partition 22 and be mutually attached to the air duct partition 22 along the radial direction of the air duct 20, and the detailed structure will not be described herein.

For the above two structural schemes, when the outer diameter of the air pipe 20 is smaller than the inner diameter of the pipe joint 10 and is inserted into the pipe joint 10, the effect of smaller outer diameter and wall penetrating holes of the air pipe 20 can be achieved, and when the inner diameter of the air pipe 20 is larger than the outer diameter of the pipe joint 10 and is sleeved outside the pipe joint 10, the effect of larger inner diameter of the air pipe 20 and larger fresh air volume can be achieved. Therefore, in actual implementation, the method can be flexibly selected according to the needs.

It can be understood that, in summary, the pipe joint 10 in the air duct connection structure 100 provided by the utility model can be pre-installed on the air conditioner body 200, when the air duct 20 and the pipe joint 10 are connected, one end of the air duct 20 is directly inserted into the pipe joint 10, so that the first air cavity 211 in the air duct 20 is correspondingly communicated with the first connecting cavity 111 in the pipe joint 10, and the second air cavity 212 in the air duct 20 is correspondingly communicated with the second connecting cavity 112 in the pipe joint 10, and two branch pipes are not required to be used for respectively connecting the first air cavity 211 and the second air cavity 212, so that the assembly process is simple and rapid, and the installation efficiency is further improved. Meanwhile, when the air pipe 20 is plugged onto the pipe joint 10, the air pipe partition 22 in the air pipe 20 and the joint partition 12 in the pipe joint 10 are mutually attached along the radial direction of the air pipe 20, so that even if the air pipe 20 and the pipe joint 10 are axially moved to a certain extent due to loose connection or incomplete connection, the air pipe partition 22 and the joint partition 12 are still attached, and further the air is not easy to cross between the first air cavity 211 and the second air cavity 212. It will also be appreciated that, because the duct partition 22 and the joint partition 12 are attached to each other in the radial direction of the duct 20, the attachment surface is larger, and therefore, the air flow does not easily pass through the attachment gap between the duct partition 22 and the joint partition 12 and flow into the other air chamber 21, that is, the air is not easily blown.

That is, the air duct connection structure 100 provided by the utility model not only can realize convenient installation between the air duct 20 and the pipe joint 10, but also has high installation efficiency, and can ensure that the air duct 20 and the pipe joint 10 are not easy to generate air-crossing after being connected, thereby solving the technical problems that the installation efficiency is lower or the air-crossing is easy when the air duct 20 integrating fresh air and exhaust air is connected with the air conditioner body 200.

Of course, after the fresh air and the exhausted air are integrated into one air duct 20, the first air chamber 211 and the second air chamber 212 are also prone to cross air at the outdoor end of the air duct 20, that is, the first air chamber 211 may re-suck the dirty air just exhausted to the outdoor by the second air chamber 212. In this regard, the first air chamber 211 and the second air chamber 212 may be designed by themselves as required, and the outdoor ends may be different in length, and the openings may be opposite in direction, to avoid wind flowing outside the room.

Optionally, in an embodiment, as shown in fig. 6, the first air chamber 211 is used for air intake, the second air chamber 212 is used for air outlet, and a portion of the air duct partition 22 attached to the joint partition 12 is located in the first connecting chamber 111. Specifically, the first air chamber 211 is used for introducing outdoor fresh air, the second air chamber 212 is used for discharging indoor polluted air, and when the end part of the air duct partition 22 is located in the first connecting chamber 111, the direction of the gap inlet between the air duct partition 22 and the joint partition 12 is along the air inlet direction of the fresh air in the first connecting chamber 111, so that the fresh air is not easy to be strung into the second connecting chamber 112 through the gap between the air duct partition 22 and the joint partition 12. Similarly, in the second connection chamber 112, the inlet of the gap between the duct partition 22 and the joint partition 12 is oriented in the air outlet direction of the dirty air, so the dirty air is not likely to pass through the gap between the duct partition 22 and the joint partition 12 and flow into the first connection chamber 111. Therefore, this arrangement of the present embodiment can further avoid occurrence of wind cross between the first wind chamber 211 and the second wind chamber 212.

Optionally, in an embodiment, referring to fig. 4 and 6, the air duct 20 includes a first arc plate 23, a second arc plate 24, and the air duct partition 22 connected between the first arc plate 23 and the second arc plate 24, where the first arc plate 23 and the air duct partition 22 enclose the first air chamber 211, and the second arc plate 24 and the air duct partition 22 enclose the second air chamber 212. The duct partition 22 and the first arc plate 23 are protruded along the axial direction of the duct 20 relative to the second air cavity 2121, in this embodiment, the protruded lengths of the duct partition 22 and the first arc plate 23 relative to the second air cavity 2121 are the same, however, in practical implementation, the protruded lengths of the duct partition 22 and the first arc plate 23 relative to the second air cavity 2121 may also be different, for example, the protruded length of the duct partition 22 relative to the second air cavity 2121 is greater than the protruded length of the first arc plate 23 relative to the second air cavity 2121, or the protruded length of the first arc plate 23 relative to the second air cavity 2121 is greater than the protruded length of the duct partition 22 relative to the second air cavity 2121, which may be specifically designed flexibly according to requirements. In this embodiment, referring to fig. 6 again, when the air duct 20 is plugged into the pipe joint 10, the half pipe formed by the air duct partition 22 and the first arc plate 23 is also plugged into the first connecting cavity 111 in an interference manner, so that it can be understood that the air duct partition 22 and the joint partition 12 are tightly attached to further avoid air leakage.

Optionally, in an embodiment, the joint partition 12 is further provided with a first limiting slot 123, the air duct partition 22 is further provided with a first limiting clip protrusion 221, and when the air duct partition 22 and the joint partition 12 are mutually attached along the radial direction of the air duct 20, the first limiting clip protrusion 221 is clipped in the first limiting slot 123. It can be appreciated that such arrangement not only can avoid the condition that the air duct partition 22 and the joint partition 12 are strung due to the fact that the air duct partition 22 and the joint partition 12 are relatively moved in the axial direction, but also can enable the joint surface between the air duct partition 22 and the joint partition 12 to have a bending surface, so that air flow is more difficult to penetrate through the gap between the air duct partition 22 and the joint partition 12 and strung into the other air cavity 21. It should be noted that, the designs of the first limiting clamping groove 123 and the first limiting clamping protrusion 221 in size, shape, number and the like can be flexibly selected according to the needs, as long as the clamping connection can be realized.

Optionally, in an embodiment, one end of the air duct 20 inserted into the connection cavity 11 is further in interference fit with the connection cavity 11, so that stable connection between the air duct 20 and the pipe joint 10 can be achieved, the condition that the whole air duct 20 drives the air duct partition 22 to separate from the joint partition 12 is avoided, tightness between the air duct 20 and the pipe joint 10 can be enhanced, and fresh air or polluted air is avoided.

Optionally, in an embodiment, as shown in fig. 5, a second limiting clamping protrusion 25 is further disposed on an outer peripheral surface of the air duct 20, as shown in fig. 3, a second limiting clamping groove 13 is further disposed on an inner wall of the connection cavity 11, as shown in fig. 6, and when one end of the air duct 20 is inserted into the connection cavity 11, the second limiting clamping protrusion 25 is clamped into the second limiting clamping groove 13. Specifically, in this embodiment, the first arc plate 23 and the second arc plate 24 of the air duct 20 are respectively provided with a first limiting clamping protrusion 221, and the corresponding position in the connecting cavity 11 is provided with a second limiting clamping groove 13, so that the connection stability between the air duct 20 and the pipe joint 10 can be further improved through the clamping and limiting of the plurality of second limiting clamping protrusions 25 and the plurality of second limiting clamping grooves 13.

Further, in an embodiment, referring to fig. 4 and fig. 5, the first arcuate plate 23 and the second arcuate plate 24 are respectively provided with the second limiting locking protrusion 25, and referring to fig. 3, the inner wall of the connecting cavity 11 is respectively provided with the second limiting locking groove 13 at positions corresponding to the first arcuate plate 23 and the second arcuate plate 24, and in the axial direction of the pipe joint 10, the axial distances from each second limiting locking groove 13 to the connecting cavity port 113 are different. For example, referring to fig. 3, the second limiting slot 13 on the left side of the drawing may be closer to the connecting cavity 113, and the second limiting slot 13 on the right side of the drawing may be farther from the connecting cavity 113, where the second limiting protrusions 25 on the first arc-shaped plate 23 and the second arc-shaped plate 24 are correspondingly disposed. It will be appreciated that if the plugging orientation of the air duct 20 when plugged into the pipe joint 10 is wrong (for example, the first air chamber 211 corresponds to the second connecting chamber 112, and the second air chamber 212 corresponds to the first connecting chamber 111), the second limit lugs 25 and the second limit slots 13 cannot be completely clamped together, so this embodiment can avoid the situation that an assembler is misplaced.

As shown in fig. 7 and 8, the present utility model further provides a fresh air conditioner 1000, where the fresh air conditioner 1000 includes a machine body 200, a rear cover 300, and the air duct connection structure 100 described in any of the foregoing embodiments, the machine body 200 is provided with a fresh air chamber 210 and an exhaust chamber 220, a fresh air wind wheel 230 is disposed in the fresh air chamber 210, and an exhaust wind wheel 240 is disposed in the exhaust chamber 220. Referring to fig. 1 and 2, the back cover 300 is mounted on the machine body 200, and the back cover 300 is provided with a fresh air communication port 310 communicating with the fresh air chamber 210 and an exhaust air communication port 320 communicating with the exhaust air chamber 220. The specific structure of the duct connection structure 100 refers to the above embodiment, and the pipe joint 10 and the rear cover 300 are integrally formed, the first connection cavity 111 is communicated with the fresh air communication port 310, and the second connection cavity 112 is communicated with the exhaust air communication port 320. Wherein, when the pipe joint 10 is integrally formed to the rear cover 300, the first connecting cavities 111 can communicate with each other by being arranged opposite to the fresh air communication port 310, and can also communicate with the fresh air communication port 310 by the ventilation pipe 20; similarly, the second connection chambers 112 may communicate with each other by being disposed opposite to the exhaust communication port 320, and may communicate with the exhaust communication port 320 by way of the ventilation duct 20.

It can be appreciated that, since the present fresh air conditioner 1000 adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are provided, and will not be described in detail herein. It will be further appreciated that, since the pipe joint 10 is integrally formed with the rear cover 300, only one end of the air duct 20 needs to be inserted into the pipe joint 10 during assembly, and the pipe joint 10 and the rear cover 300 do not need to be connected, so that the assembly efficiency can be improved, assembly accessories can be saved, and the production cost can be reduced.

Optionally, in an embodiment, referring to fig. 1 to 3, the first connecting cavity 111 is opposite to and communicated with the fresh air communication port 310 along an axial direction of the pipe joint 10, the rear cover 300 is further integrally formed with an exhaust duct 20, and the second connecting cavity 112 is communicated with the exhaust communication port 320 through the exhaust duct 20. Specifically, in the present embodiment, referring to fig. 7 or 8, the air exhausting chamber 220 and the fresh air chamber 210 are arranged up and down along the height direction of the machine body 200, the fresh air chamber 210 is located below the air exhausting chamber 220, and the fresh air communicating opening 310 on the rear cover 300 is also located at the lower part of the rear cover 300 correspondingly, so that the pipe joint 10 is also integrally formed at the lower part of the rear cover 300, and the first connecting chamber 111 in the pipe joint 10 communicates with the fresh air communicating opening 310, while the second connecting chamber 112 in the pipe joint 10 communicates with the air exhausting communicating opening 320 located at the upper part of the rear cover 300 through the air exhausting pipe 20, and the air exhausting pipe 20 integrally forms with the rear cover 300 and extends upward from one side of the pipe joint 10 to the air exhausting vent.

It can be appreciated that by making the first connecting cavity 111 in the pipe joint 10 directly communicate with the fresh air communication port 310 relatively, the path length of fresh air blown into the room can be reduced, the air intake efficiency can be ensured, meanwhile, the number of pipes can be reduced, only one exhaust pipe 20 is needed to communicate the second connecting cavity 112 with the exhaust vent, further, because the exhaust pipe 20 is integrally formed on the rear cover 300, only one end of the air pipe 20 is inserted into the pipe joint 10 during assembly, and the assembly of the exhaust pipe 20, the pipe joint 10 and other components on the rear cover 300 is not needed, thereby improving the assembly efficiency.

Optionally, in an embodiment, as shown in fig. 2 and fig. 3, the fresh air communication port 310 is located at one side of the fresh air cavity 210, and the back cover 300 is further provided with a diffusion cavity 340 between the fresh air communication port 310 and the first connection cavity 111, where a cross-sectional area of the diffusion cavity 340 is greater than a cross-sectional area of the first connection cavity 111 and less than a cross-sectional area of the fresh air cavity 210. It will be appreciated that, because both the fresh air and the exhaust air are concentrated in the air duct 20, the first air chamber 211 in the air duct 20 for introducing the fresh air must be smaller than if the whole air duct 20 were originally used for fresh air (the cross-sectional area of the first connecting chamber 111 and the cross-sectional area of the first air chamber 211 are substantially the same), that is, the cross-sectional area of the channel for introducing the fresh air is smaller, while the fresh air chamber 210 in the machine body 200 is unchanged, so that the fresh air is liable to undergo a larger mutation in the pressure of the fresh air when flowing from the first connecting chamber 111 into the fresh air chamber 210, and a larger air loss is generated. Therefore, in this embodiment, by setting the diffusion cavity 340 between the first connection cavity 111 and the fresh air cavity 210, the fresh air pressure can be stepwise changed layer by layer in the process of flowing from the first connection cavity 111 to the fresh air cavity 210, so that the problem of large air loss caused by large abrupt change of the fresh air pressure is avoided, and further, the fresh air inlet volume can be ensured when the fresh air and the exhausted air are integrated into one air pipe 20, and the improvement efficiency of the indoor air quality is improved.

Of course, in another embodiment, in order to ensure the fresh air intake, when the air duct 20 is divided into the first air chamber 211 and the second air chamber 212 by the air duct partition 22, the cross-sectional area of the first air chamber 211 is larger than that of the second air chamber 212, and the first air chamber 211 is used for introducing fresh air, so that the fresh air intake can be ensured, and the problem that the fresh air intake is greatly affected after the fresh air and the exhaust air are integrated into one air duct 20 is avoided.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments. In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features.

The above detailed description of the air duct connection structure provided by the embodiment of the present utility model applies specific examples to illustrate the principles and embodiments of the present utility model, and the above description of the embodiment is only used to help understand the method and core idea of the present utility model; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present utility model, the present description should not be construed as limiting the present utility model in summary.

Claims (10)

1. An air duct connection structure, comprising:

the pipe joint is internally provided with a connecting cavity and a joint partition board, and the joint partition board divides the connecting cavity into a first connecting cavity and a second connecting cavity; the method comprises the steps of,

the air pipe is internally provided with an air cavity and an air pipe partition board, and the air pipe partition board divides the air cavity into a first air cavity and a second air cavity;

one end of the air pipe is connected with the pipe joint in a plugging mode, the first air cavity is communicated with the first connecting cavity, the second air cavity is communicated with the second connecting cavity, and the air pipe partition plate and the joint partition plate are mutually attached along the radial direction of the air pipe.

2. The duct connection structure of claim 1, wherein the connection chamber has a connection chamber opening, the joint spacer has front and rear ends opposite in an axial direction of the pipe joint, the front end is located in the connection chamber, and the front end is spaced apart from the connection chamber opening;

the first air cavity is provided with a first air cavity opening communicated with the first connecting cavity, the second air cavity is provided with a second air cavity opening communicated with the second connecting cavity, and the air pipe partition plate protrudes relative to the first air cavity opening and/or the second air cavity opening along the axial direction of the air pipe;

one end of the air pipe is inserted into the pipe joint, and the air pipe partition plate extends into the connecting cavity and is mutually attached to the joint partition plate along the radial direction of the air pipe.

3. The duct connection structure of claim 2, wherein the first air chamber is configured to intake air and the second air chamber is configured to exhaust air, and wherein the portion of the duct partition that is in contact with the joint partition is located in the first connection chamber.

4. The duct connection structure of claim 3, wherein the duct includes a first arcuate plate, a second arcuate plate, and the duct spacer connected between the first arcuate plate and the second arcuate plate, the first arcuate plate and the duct spacer enclosing the first air chamber, the second arcuate plate and the duct spacer enclosing the second air chamber;

the air pipe partition plate and the first arc plate are protruded relative to the second air cavity opening along the axial direction of the air pipe, and a half pipe formed by the air pipe partition plate and the first arc plate is inserted in the first connecting cavity in an interference mode.

5. The air duct connecting structure of claim 4, wherein the joint partition plate is further provided with a first limiting clamping groove, the air duct partition plate is further provided with a first limiting clamping protrusion, and the first limiting clamping protrusion is clamped in the first limiting clamping groove when the air duct partition plate and the joint partition plate are mutually attached along the radial direction of the air duct.

6. The air duct connection structure of claim 5, wherein an end of the air duct inserted into the connection cavity is also in interference fit with the connection cavity; and/or, still be equipped with the protruding of second spacing card on the outer peripheral face of tuber pipe, still be equipped with the spacing draw-in groove of second on the inner wall of connecting the chamber, when the one end grafting of tuber pipe in the connecting the intracavity, protruding joint of second spacing card in the spacing draw-in groove of second.

7. The air duct connecting structure of claim 6, wherein the first arcuate plate and the second arcuate plate are respectively provided with the second limit clamping protrusion, and the inner wall of the connecting cavity is respectively provided with the second limit clamping groove at positions corresponding to the first arcuate plate and the second arcuate plate;

and in the axial direction of the pipe joint, the axial distance from each second limiting clamping groove to the connecting cavity opening is different.

8. A fresh air conditioner, comprising:

the machine body is provided with a fresh air cavity and an exhaust cavity;

the rear cover is arranged on the machine body and is provided with a fresh air communication port communicated with the fresh air cavity and an exhaust communication port communicated with the exhaust cavity; the method comprises the steps of,

the duct connecting structure according to any one of claims 1 to 7, wherein the duct joint is integrally formed with the rear cover, the first connecting chamber communicates with the fresh air communication port, and the second connecting chamber communicates with the exhaust air communication port.

9. The fresh air conditioner of claim 8, wherein the first connecting cavity is opposite to and communicated with the fresh air communication port along the axial direction of the pipe joint, an exhaust pipe is integrally formed on the rear cover, and the second connecting cavity is communicated with the exhaust communication port through the exhaust pipe.

10. The fresh air conditioner of claim 9, wherein the fresh air communication port is located at one side of the fresh air cavity, the rear cover is further provided with a diffusion cavity between the fresh air communication port and the first connecting cavity, and a cross-sectional area of the diffusion cavity is larger than a cross-sectional area of the first connecting cavity and smaller than a cross-sectional area of the fresh air cavity.