CN218544740U - Fresh air system for wall penetrating machine and wall penetrating machine - Google Patents

Abstract

The application relates to the technical field of air conditioners, and discloses a new trend system for wall penetrating machine includes: the indoor part is provided with a fresh air outlet and an exhaust air inlet on the indoor side, and the outdoor part is provided with a fresh air inlet and an exhaust air outlet; the fresh air outlet and the fresh air inlet are communicated through a first air channel, the exhaust air inlet and the exhaust air outlet are communicated through a second air channel, and part of the first air channel and the second air channel are arranged in a crossed mode, and an installation bin is formed at the crossed position; and the total heat exchanger is arranged in the installation bin, and the air flow passing through the first air channel and the air flow passing through the second air channel exchange heat through the total heat exchanger. Can also reduce the direct energy loss who brings to outdoor of indoor air under can discharging indoor dirty air to outdoor condition, this application still discloses a wall machine of wearing.

Description

Fresh air system for wall penetrating machine and wall penetrating machine

Technical Field

The application relates to the technical field of air conditioners, for example to a fresh air system for a wall penetrating machine and the wall penetrating machine.

Background

A PTAC (Packaged Terminal Air Conditioning) wall penetrating machine is an integral Air conditioner specific to the north american market, which mainly includes an indoor part and an outdoor part. Wherein, the indoor part comprises an inner air duct, an inner fan, an evaporator and other structures; the outdoor part comprises a condenser, an outer air duct, an outer fan, a compressor and the like, and the indoor part and the outdoor part are placed on a chassis and are separated by a partition plate which can block noise and air inside and outside the compartment.

The PTAC wall penetrating machine in the related art also has a fresh air function, and can suck outdoor fresh air into a room. Therefore, the partition plate is provided with the through hole and the door stopper capable of opening or closing the through hole, and the outdoor air can enter the inner air duct through the through hole.

Under the condition of opening the new trend function, outdoor air enters into interior wind channel through the opening, and simultaneously under the effect of fan including, indoor air also enters into interior wind channel through the evaporimeter to flow from the air outlet after mixing with outdoor air, realize the purpose of taking a breath to the indoor side.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the PTAC wall penetrating machine with the structure can send outdoor fresh air into the room and improve indoor air quality, but cannot discharge indoor dirty air to the outside, so that the fresh air effect is poor.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a new trend system and wall penetrating machine for wall penetrating machine, can also reduce the energy loss that the indoor air directly discharged brought to the open air under can discharging the indoor dirty air to the outdoor condition.

A new trend system for wall penetrating machine includes: the indoor part is provided with a fresh air outlet and an exhaust air inlet on the indoor side, and the outdoor part is provided with a fresh air inlet and an exhaust air outlet; the fresh air outlet is communicated with the fresh air inlet through a first air duct, the exhaust air inlet is communicated with the exhaust air outlet through a second air duct, and part of the first air duct and the second air duct are arranged in a crossed manner, and an installation bin is constructed at the crossed arrangement position; and the total heat exchanger is arranged in the mounting bin, and the air flow passing through the first air channel and the air flow passing through the second air channel exchange heat through the total heat exchanger.

In some embodiments, the total heat exchanger comprises: a body; the first heat exchange channel group penetrates through the body and is arranged in the first air duct in a conduction manner; so that the air flow entering the first air duct flows out from the fresh air outlet after passing through the first heat exchange channel group; the second heat exchange channel group penetrates through the body and is arranged in the second air duct in a conduction manner; so that the airflow entering the second air duct flows out from the fresh air outlet after passing through the second heat exchange channel group; the first heat exchange channel group and the second heat exchange channel group are completely isolated and can exchange heat.

In some embodiments, the body is a cuboid comprising first and second oppositely disposed sides, third and fourth oppositely disposed sides; the first heat exchange channel group leads to the second side surface from the first side surface, and the second heat exchange channel group leads to the fourth side surface from the third side surface; the first heat exchange channel group comprises one or more first heat exchange channels, the second heat exchange channel group comprises one or more second heat exchange channels, and the heat exchange sections of the first heat exchange channels and the heat exchange sections of the second heat exchange channels are arranged adjacently and are completely isolated.

In some embodiments, the first heat exchange channel is separated from the second heat exchange channel by a heat exchange membrane.

In some embodiments, the indoor portion further comprises: an upper housing; a lower housing connected with the upper housing; the fresh air outlet is arranged on the indoor side of the upper shell, and the fresh air inlet is arranged on the outdoor side of the lower shell; the air exhaust inlet is arranged at the joint of the upper shell and the lower shell at the indoor side, the air exhaust outlet is arranged at the joint of the upper shell and the lower shell at the outdoor side, and the joint of the upper shell and the lower shell at the outdoor side is also provided with an installation port communicated with the installation bin.

In some embodiments, the indoor portion further comprises: and the first fan is arranged at the fresh air inlet and used for sucking the airflow outside the room into the first air channel and flowing out of the fresh air outlet.

In some embodiments, the indoor portion further comprises: and the second fan is arranged at the air exhaust outlet and used for sucking the indoor air flow into the second air duct and flowing out of the air exhaust outlet.

In some embodiments, the fresh air system for a wall penetrating machine further comprises: the baffle sets up in the outdoor side of indoor portion, wraps up casing and lower casing, and offers first air door and second air door corresponding with new trend import and the export of airing exhaust on the face of baffle.

In some embodiments, the upper casing and the lower casing are internally configured with a heat exchange space, and the upper casing is provided with an air outlet communicated with the heat exchange space, and the indoor part further includes: and the centrifugal fan is arranged in the heat exchange space, so that the air flow after heat exchange flows out from the air outlet.

The wall penetrating machine comprises: a chassis; the outdoor unit is arranged on the chassis; the indoor unit is arranged on the chassis and is connected with the outdoor unit through an online pipeline, and the indoor unit comprises the fresh air system for the wall penetrating machine in the embodiment.

The fresh air system for the wall penetrating machine and the wall penetrating machine provided by the embodiment of the disclosure can realize the following technical effects:

the fresh air outlet and the fresh air inlet are communicated through the first air duct, so that outdoor fresh air can be sucked into the room; the air exhaust inlet and the air exhaust outlet are communicated through the second air duct, so that dirty indoor air can be exhausted to the outside, and the indoor air quality is further ensured; on the basis, partial air channels of the first air channel and the second air channel are arranged in a crossed mode, an installation bin is constructed at the crossed position, and a full heat exchanger is arranged in the installation bin; thus, the air flow passing through the first air duct and the air flow passing through the second air duct exchange heat through the total heat exchanger; therefore, when dirty indoor air can be discharged to the outside, the loss of cooling energy or heat caused by directly discharging indoor air to the outside can be reduced.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings, and which do not constitute a limitation on the embodiments, in which components having the same reference number designation are shown as similar components, and in which:

FIG. 1 is a first schematic structural view of an indoor portion on an outdoor side according to an embodiment of the present disclosure;

FIG. 2 is a second schematic structural view of the indoor portion outside the outdoor according to the embodiment of the present disclosure;

FIG. 3 is a first schematic structural view of an indoor portion of an embodiment of the present disclosure on an indoor side;

FIG. 4 is a schematic diagram of the construction of an enthalpy exchanger according to an embodiment of the present disclosure;

FIG. 5 is a second schematic structural view of the indoor portion of the disclosed embodiment on the indoor side;

FIG. 6 is a front view of the indoor section of an embodiment of the present disclosure outside the room;

FIG. 7 isbase:Sub>A schematic cross-sectional view taken at A-A in FIG. 6;

FIG. 8 is a schematic cross-sectional view taken at B-B of FIG. 6;

FIG. 9 is a schematic structural view of a separator plate of an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a wall penetrating machine according to an embodiment of the disclosure.

Reference numerals are as follows:

100: a chassis; 200: an indoor unit; 300: an outdoor unit;

10: a fresh air outlet; 11: a fresh air inlet; 12: a first air duct; 13: a first fan;

20: an exhaust inlet; 21: an exhaust outlet; 22: a second air duct; 23: a second fan;

30: installing a bin; 31: an installation port;

40: a total heat exchanger; 41: a first heat exchange channel group; 411: a first heat exchange channel; 42: a second heat exchange channel group; 421: a second heat exchange channel;

50: an upper housing; 51: an air outlet; 60: a lower housing; 70: a partition plate; 71: a first damper; 72: a second damper; 80: a centrifugal fan.

Detailed Description

So that the manner in which the features and advantages of the embodiments of the present disclosure can be understood in detail, a more particular description of the embodiments of the disclosure, briefly summarized above, may be had by reference to the appended drawings, which are included to illustrate, but are not intended to limit the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.

With reference to fig. 1 to 8, an embodiment of the present disclosure provides a fresh air system for a wall penetrating machine, including an indoor portion and a total heat exchanger 40. The indoor side of the indoor part is provided with a fresh air outlet 10 and an exhaust air inlet 20, and the outdoor side of the indoor part is provided with a fresh air inlet 11 and an exhaust air outlet 21; the fresh air outlet 10 is communicated with the fresh air inlet 11 through a first air duct 12, the exhaust air inlet 20 is communicated with the exhaust air outlet 21 through a second air duct 22, and the parts of the first air duct 12 and the second air duct 22 are arranged in a crossed manner, and an installation bin 30 is constructed at the crossed position; the total heat exchanger 40 is disposed in the installation bin 30, and the air flow passing through the first air duct 12 and the air flow passing through the second air duct 22 exchange heat through the total heat exchanger 40.

By adopting the fresh air system for the wall-through machine provided by the embodiment of the disclosure, the indoor side of the indoor part is provided with the fresh air outlet 10 and the air exhaust inlet 20, the outdoor side of the indoor part is provided with the fresh air inlet 11 and the air exhaust outlet 12, and the fresh air outlet 10 and the fresh air inlet 11 are communicated through the first air duct 12, so that outdoor fresh air enters the first air duct 12 from the fresh air inlet 11 and flows into the indoor space from the fresh air outlet 10; the air exhaust inlet 20 and the air exhaust outlet 21 are communicated through the second air duct 12, so that indoor dirty air enters the second air duct 12 through the air exhaust inlet 20 and is exhausted to the outdoor from the air exhaust outlet 21, and the indoor air quality is further ensured; on the basis, the first air duct 12 and the second air duct 12 are partially arranged in a crossed manner, and a mounting bin 30 is constructed at the crossed position, and a total heat exchanger 40 is arranged in the mounting bin 30; thus, the air flow passing through the first air duct 12 and the air flow passing through the second air duct 22 are subjected to heat exchange by the total heat exchanger 40; therefore, when dirty indoor air can be discharged to the outside, the loss of cooling energy or heat caused by directly discharging indoor air to the outside can be reduced.

Because the new trend system among the traditional structure wall penetrating machine can only inhale the air of outdoor side indoor, and then increase indoor fresh air, but can not discharge indoor dirty air outdoor, consequently it is relatively poor to trade the effect of new trend. In the embodiment of the disclosure, the fresh air exchange of the fresh air system comprises two processes, namely, firstly, fresh air flows into a room, and then, dirty air in the room is discharged; the indoor side is provided with a fresh air outlet 10, the outdoor side is provided with a fresh air inlet 11, the fresh air outlet 10 is communicated with the fresh air inlet 11 through a first air channel 12, and outdoor fresh air enters the first air channel 12 through the fresh air outlet 10 and then flows into the indoor space through the fresh air inlet 11. An exhaust inlet 20 is arranged at the indoor side, an exhaust outlet 21 is arranged at the outdoor side, the exhaust inlet 20 and the exhaust outlet 21 are communicated through a second air duct 22, and indoor dirty air enters the second air duct 22 through the exhaust inlet 20 and then flows out of the room through the exhaust outlet 21.

In this embodiment, the dirty air discharged from the room is the room air that needs to be exchanged with the fresh air, and this air is poor in quality because it is recycled in the room for a long time, and needs to be exchanged with the fresh air.

As shown in fig. 5 to 8, the dirty air is recycled indoors for a long time, and therefore has a certain amount of heat or cold, so that the fresh air flowing into the indoor also has a certain amount of heat or cold, and the heat or cold of the dirty air can be transferred to the fresh air, thereby improving the energy efficiency of the fresh air system. In the above embodiment, the first air duct 12 and the second air duct 22 are provided in the inner space of the indoor portion, and portions of the first air duct 12 and the second air duct 22 are arranged to intersect. That is, the fresh air flowing into the room from the outside will pass through the crossing position, that is, the dirty air flowing into the room from the outside will also pass through the crossing position; the installation bin 30 and the full heat exchanger 40 are arranged in the installation bin 30 at the crossing position, and the full heat exchanger 40 can enable fresh air passing through the first air channel 12 and dirty air passing through the second air channel 22 to exchange heat, so that heat or cold of the dirty air is improved, the energy efficiency of the fresh air system is improved, and energy loss is reduced.

In some embodiments, to further improve the fresh air effect, the air flow in the exhaust process and the air flow in the suction process can exchange heat, and the two air flows need to be isolated. As shown in connection with fig. 4, the total heat exchanger 40 includes a body, a first heat exchange channel group 41, and a second heat exchange channel group 42. The first heat exchange channel group 41 is arranged through the body and is communicated with the first air duct 12; so that the airflow entering the first air duct 12 flows out from the fresh air outlet 10 after passing through the first heat exchange channel group 41; the second heat exchange channel group 42 is arranged in the body in a penetrating manner and is communicated with the second air duct 22; so that the airflow entering the second air duct 22 flows out from the fresh air outlet 10 after passing through the second heat exchange channel group 42; the first heat exchange channel group 41 is completely isolated from the second heat exchange channel group 42 and is capable of heat exchange.

In this embodiment, the first heat exchange channel group 41 can conduct the first air duct 12, so that all the fresh air passing through the first air duct 12 can pass through the first heat exchange channel group 41; the second heat exchange channel group 42 can conduct the second air duct 22, so that all the dirty air passing through the second air duct 22 can pass through the second heat exchange channel group 42. Thus, the dirty air can exchange heat with the fresh air; on this basis, the first heat exchange channel group 41 and the second heat exchange channel group 42 are in a completely isolated state. In this way, the first air duct 12 and the second air duct 22 are completely independent air ducts, and fresh air and dirty air do not affect each other.

In this embodiment, under the condition that the first heat exchange channel group 41 and the second heat exchange channel group 42 can exchange heat, the first heat exchange channel group 41 and the second heat exchange channel group 42 have multiple arrangement modes. Optionally, the first heat exchange channel group 41 is disposed on the same side of the body, and the inlet and the outlet of the first heat exchange channel group 41 and the inlet and the outlet of the second heat exchange channel group 42 are disposed left and right, or disposed up and down; the inlet and outlet of the first heat exchange channel group 41 and the inlet and outlet of the second heat exchange channel group 42 are not arranged on the same side of the body, but part of the channel pipe sections of the first heat exchange channel group 41 and the second heat exchange channel group 42 can exchange heat with each other.

The air flow passing through the first heat exchange channel group 41 and the second heat exchange channel group 42 may be affected by the caliber area of the channel, and part of the air flow cannot exchange heat, so that the heat exchange area of the first heat exchange channel group 41 and the second heat exchange channel group 42 can be increased for further improving the heat exchange efficiency of the dirty air and the fresh air.

In some embodiments, the body is a cuboid comprising first and second oppositely disposed sides, third and fourth oppositely disposed sides; the first heat exchange channel group 41 leads from the first side to the second side, and the second heat exchange channel group 42 leads from the third side to the fourth side; wherein, the first heat exchange channel group 41 includes one or more first heat exchange channels 411, the second heat exchange channel group 42 includes one or more second heat exchange channels 421, and the heat exchange section of the first heat exchange channel 411 is adjacent to and completely isolated from the heat exchange section of the second heat exchange channel 421.

In this embodiment, the body is a rectangular parallelepiped, and has a first side surface and a second side surface that are opposite to each other, and a third side surface and a fourth side surface that are opposite to each other, where the first side surface is disposed adjacent to the third side surface and the fourth side surface, so that the first heat exchange channel group 41 and the second heat exchange channel group 42 are disposed perpendicular to each other, and the portions of the first heat exchange channel group 41 and the second heat exchange channel group 42 that can exchange heat are perpendicular to each other; wherein the first heat exchange channel group 41 comprises one or more first heat exchange channels 411 and the second heat exchange channel group 42 comprises one or more second heat exchange channels 421.

Alternatively, in the case that the first heat exchange channel group 41 includes one first heat exchange channel 411 and the second heat exchange channel group 42 includes a plurality of second heat exchange channels 421, the first heat exchange channel 411 passes from the first side to the second side, and the plurality of second heat exchange channels 421 are disposed at both sides or one side of the first heat exchange channel 411. Similarly, the first heat exchange channel group 41 includes a plurality of first heat exchange channels 411, and the second heat exchange channel group 42 includes one second heat exchange channel 421, and the setting manner is the same as that described above, and is not described herein again.

Optionally, in a case that the first heat exchanging channel group 41 includes a plurality of first heat exchanging channels 411, and the second heat exchanging channel group 42 includes a plurality of second heat exchanging channels 421, inlets of the plurality of first heat exchanging channels 411 are arranged in an array on the first side, and inlets of the plurality of second heat exchanging channels 421 are also arranged in an array on the third side, but are disposed in a staggered manner with the first heat exchanging channels 411. In this way, each individual first heat exchange channel 411 and each individual second heat exchange channel 421 may be disposed adjacent to each other, and the air flow entering any one first heat exchange channel 411 and the air flow in the adjacent second heat exchange channel 421 may exchange heat, so that the heat exchange areas of the first heat exchange channel group 41 and the second heat exchange channel group 42 are increased.

On the basis of increasing the heat exchange area of the first heat exchange channel group 41 and the second heat exchange channel group 42, the separating medium of the first heat exchange channel 411 and the second heat exchange channel 421 is also one of the factors influencing the heat exchange. In some embodiments, first heat exchange channel 411 is separated from second heat exchange channel 421 by a heat exchange membrane. In this embodiment, when the fresh air entering the room and the dirty air discharged from the room pass through the total heat exchanger 40, the first heat exchange channel 411 and the second heat exchange channel 421 in two directions are isolated and heat-exchanged by the heat exchange film, and the thickness of the heat exchange film is relatively thin, so that the volume and weight of the total heat exchanger 40 can be reduced under the condition of satisfying the isolation and heat exchange, and the energy of the dirty air discharged to the outside is transferred to the fresh air flowing into the room and then returns to the room again, thereby avoiding the loss of the indoor heat and cold energy.

As shown in connection with fig. 2, 3 and 5, in some embodiments, the indoor portion further includes: an upper case 50; a lower case 60 connected with the upper case 50; wherein, the fresh air outlet 10 is arranged at the indoor side of the upper shell 50, and the fresh air inlet 11 is arranged at the outdoor side of the lower shell 60; the exhaust air inlet 20 is arranged at the connection position of the upper shell 50 and the lower shell 60 at the indoor side, the exhaust air outlet 21 is arranged at the connection position of the upper shell 50 and the lower shell 60 at the outdoor side, and the connection position of the upper shell 50 and the lower shell 60 at the outdoor side is also provided with an installation opening 31 communicated with the installation bin 30.

In the present embodiment, the indoor portion includes an upper case 50 and a lower case 60 connected to each other. In the structure for introducing fresh air, the upper shell 50 is provided with a fresh air outlet 10 at the indoor side, and part of the air channel of the first air channel 12 is arranged on the upper shell 50 and is used for being connected with the fresh air outlet 10; on the outdoor side, the lower casing 60 has a fresh air inlet 11, and another part of the first air duct 12 is disposed on the lower casing 60 and is connected to the fresh air inlet 11.

In the structure of air exhaust, an air exhaust inlet 20 is arranged at the joint of the upper shell 50 and the lower shell 60 at the indoor side; an air discharge outlet 21 is provided at the junction of the upper casing 50 and the lower casing 60 outside the room. And the upper casing 50 is provided with a part of the second air duct 22, and the lower casing 60 is provided with a part of the second air duct 22, so that the first air duct 12 and the second air duct 22 can be formed when the upper casing 50 is connected with the lower casing 60. Here, the first air duct 12 is disposed perpendicular to the second air duct 22, a mounting bin 30 is constructed at a vertical position, and a mounting port 31 communicating with the mounting bin 30 is further provided at the junction for putting the total heat exchanger 40.

Alternatively, the shapes and structures of the fresh air outlet 10, the fresh air inlet 11, the exhaust air inlet 20, and the exhaust air outlet 21 may be set according to the actual structures of the upper and lower cases 50 and 60.

In order to rapidly improve the indoor air quality as shown in fig. 1, 2, 6 and 7, in some embodiments, the indoor part further includes: and the first fan 13 is arranged at the fresh air inlet 11 and used for sucking the airflow outside the room into the first air duct 12 and flowing out from the fresh air outlet 10.

In this embodiment, under the condition that the indoor part executes the fresh air mode, the air outside the room enters the first half air duct of the first air duct 12 from the fresh air inlet 11, then enters the first heat exchange channel 411 of the total heat exchanger 40, then enters the second half air duct of the first air duct 12, and finally flows out from the fresh air outlet 10, and then enters the room, so as to improve the indoor air quality under the action of the first fan 13.

In the present embodiment, the indoor air quality can be rapidly improved by increasing the operating power of the first fan 13. Alternatively, the first fan 13 may employ a blower fan.

As shown in conjunction with fig. 1, 2, 6, and 8, in some embodiments, the indoor portion further includes: and a second fan 23 provided at the discharge outlet 21, for sucking the indoor air into the second air passage 22 and discharging the indoor air from the discharge outlet 21.

In this embodiment, under the condition that the indoor part executes the fresh air mode, the dirty air at the indoor side enters the first half air duct of the second air duct 22 from the air exhaust inlet 20 under the action of the second fan 23, then enters the second heat exchange channel 421 of the total heat exchanger 40, then enters the second half air duct of the second air duct 22, finally flows out from the air exhaust outlet 21, and is then exhausted to the outdoor, thereby completing the purpose of fresh air intake.

In the present embodiment, the operation power of the second fan 23 may be increased to rapidly discharge the dirty air in the room, thereby improving the quality of the air in the room. Alternatively, the second fan 23 may employ an updraft fan.

In the above embodiment, the first fan 13 may be disposed at the fresh air outlet 10; a second fan 23 may also be provided at the discharge air inlet 20. However, in order to reduce noise generated in the indoor side during operation, it is preferable to provide the fan on the outdoor side.

As shown in fig. 9, in some embodiments, the fresh air system for a wall penetrating machine further comprises: and a partition plate 70 disposed at an outdoor side of the indoor part, wrapping the upper case 50 and the lower case 60, and having a first air door 71 and a second air door 72 corresponding to the fresh air inlet 11 and the exhaust air outlet 21 on a plate surface.

In the present embodiment, the partition plate 70 can block noise of the outdoor portion from being transmitted into the indoor portion, and air separating the outdoor portion and the indoor portion; the partition board 70 can wrap the upper shell 50 and the lower shell 60, a first air door 71 corresponding to a fresh air inlet is arranged on the board surface of the partition board 70, and whether fresh air is sucked or not is controlled through the openable first air door 71; a second damper 72 corresponding to the discharge air outlet 21 is opened on the plate surface of the partition plate 70, and whether or not to discharge the air in the room is controlled by the openable and closable second damper 72.

In some embodiments, the upper and lower cases 50 and 60 are internally configured with a heat exchange space, and the upper case 50 is provided with an air outlet 51 communicating with the heat exchange space, and the indoor part further includes: and the centrifugal fan 80 is arranged in the heat exchange space, so that the air flow after heat exchange flows out from the air outlet 51.

In this embodiment, there is a cross flow fan as the air supply device of the conventional wall penetrating machine, and since the volume of the cross flow fan is large, in order to reduce the overall size of the indoor portion, a centrifugal fan is disposed in the heat exchange space configured inside the upper casing 50 and the lower casing 60, so as to facilitate the arrangement of a bidirectional heat exchange air duct on the indoor portion.

As shown in fig. 10, an embodiment of the present disclosure further provides a wall penetrating machine, including: a chassis 100; an outdoor unit 200 disposed on the base plate 100; the indoor unit 300 is disposed on the chassis 100 and connected to the outdoor unit 200 through an online pipeline, and the indoor unit 300 includes a fresh air system for a wall-through machine in the foregoing embodiments.

In the embodiment of the present disclosure, the indoor unit 300 includes the fresh air system as described above, and with reference to the above embodiment, at least the beneficial effects brought by the technical solutions of the above embodiment are achieved, and are not described in detail herein.

In the above embodiments, the outdoor unit 200 and the indoor unit 300 form a refrigerant circulation system through an online pipeline, the refrigerant circulation system includes a compressor, a condenser, an evaporator, a throttling device, and other refrigeration accessories, and the refrigerant circulation system is disposed in the outdoor unit 200 and the indoor unit 300, and the specific structure is not described again.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A new trend system for wall penetrating machine, its characterized in that includes:

the indoor part is provided with a fresh air outlet (10) and an exhaust air inlet (20) at the indoor side, and is provided with a fresh air inlet (11) and an exhaust air outlet (21) at the outdoor side;

the fresh air outlet (10) is communicated with the fresh air inlet (11) through a first air duct (12), the exhaust air inlet (20) is communicated with the exhaust air outlet (21) through a second air duct (22), partial air ducts of the first air duct (12) and the second air duct (22) are arranged in a crossed mode, and a mounting bin (30) is constructed at the crossed position;

and the total heat exchanger (40) is arranged in the mounting bin (30), and the airflow passing through the first air duct (12) and the airflow passing through the second air duct (22) exchange heat through the total heat exchanger (40).

2. The fresh air system of claim 1 wherein the total heat exchanger (40) comprises:

a body;

the first heat exchange channel group (41) penetrates through the body and is arranged in the first air duct (12) in a communicating manner; so that the airflow entering the first air duct (12) flows out of the fresh air outlet (10) after passing through the first heat exchange channel group (41);

the second heat exchange channel group (42) penetrates through the body and is communicated with and arranged in the second air duct (22); so that the airflow entering the second air duct (22) flows out of the fresh air outlet (10) after passing through the second heat exchange channel group (42);

wherein the first heat exchange channel group (41) and the second heat exchange channel group (42) are completely isolated and can exchange heat.

3. The fresh air system as claimed in claim 2, wherein the body is a cuboid comprising first and second oppositely disposed sides, third and fourth oppositely disposed sides; the first heat exchange channel set (41) leading from the first side to the second side, the second heat exchange channel set (42) leading from the third side to the fourth side;

wherein the first heat exchange channel group (41) comprises one or more first heat exchange channels (411), the second heat exchange channel group (42) comprises one or more second heat exchange channels (421), and the heat exchange sections of the first heat exchange channels (411) and the heat exchange sections of the second heat exchange channels (421) are arranged adjacently and are completely isolated.

4. The fresh air system as claimed in claim 3, wherein the first heat exchange channel (411) is separated from the second heat exchange channel (421) by a heat exchange membrane.

5. The fresh air system as claimed in any one of claims 1 to 4, wherein the indoor portion further comprises:

an upper case (50);

a lower case (60) connected to the upper case (50);

the fresh air outlet (10) is arranged on the indoor side of the upper shell (50), and the fresh air inlet (11) is arranged on the outdoor side of the lower shell (60); the air exhaust inlet (20) is arranged at the joint of the upper shell (50) and the lower shell (60) at the indoor side, the air exhaust outlet (21) is arranged at the joint of the upper shell (50) and the lower shell (60) at the outdoor side, and the joint of the upper shell (50) and the lower shell (60) at the outdoor side is further provided with a mounting port (31) communicated with the mounting bin (30).

6. The fresh air system as recited in claim 5, wherein the indoor portion further comprises:

the first fan (13) is arranged at the fresh air inlet (11) and used for sucking airflow outside the room into the first air channel (12) and flowing out of the fresh air outlet (10).

7. The fresh air system as recited in claim 5, wherein the indoor portion further comprises:

and a second fan (23) provided at the discharge outlet (21) and configured to suck an indoor air flow into the second air duct (22) and to flow out from the discharge outlet (21).

8. The ventilation system of claim 5, further comprising:

and the partition plate (70) is arranged at the outdoor side of the indoor part and wraps the upper shell (50) and the lower shell (60), and a first air door (71) and a second air door (72) which correspond to the fresh air inlet (11) and the air exhaust outlet (21) are arranged on the plate surface of the partition plate (70).

9. The fresh air system as claimed in claim 5, wherein a heat exchange space is configured inside the upper casing (50) and the lower casing (60), and an air outlet (51) communicating with the heat exchange space is provided on the upper casing (50), and the indoor part further comprises:

and the centrifugal fan (80) is arranged in the heat exchange space, so that the air flow after heat exchange flows out from the air outlet (51).

10. A wall penetrating machine, comprising:

a chassis (100);

an outdoor unit (200) disposed on the base plate (100);

an indoor unit (300) disposed on the base plate (100) and connected to the outdoor unit (200) through an on-line pipe, wherein the indoor unit (300) includes the fresh air system for a wall-through air machine according to any one of claims 1 to 9.

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