CN219976689U - Heat exchange core and air conditioning unit - Google Patents

Abstract

The utility model relates to a heat exchange core and an air conditioning unit, wherein the heat exchange core comprises an indoor air channel and an outdoor air channel, and the indoor air channel and the outdoor air channel respectively comprise a first diversion section and a countercurrent section which are connected in sequence; on a first plane, the cross section of the first flow guiding section is a first triangle, the cross section of the countercurrent section is a rectangle, the first triangle and the rectangle share a first long side of the rectangle, the first plane is parallel or coincident with a second plane, and the second plane comprises a coincident projection surface of the indoor air duct and the outdoor air duct; in the countercurrent section, the direction of air flow in the indoor air duct is opposite to that in the outdoor air duct. The heat exchange core and the air conditioning unit have higher heat exchange efficiency.

Description

Heat exchange core and air conditioning unit

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a heat exchange core and an air conditioning unit.

Background

Along with the wider and wider application of big data computing, the heating value of electronic equipment in a machine room is gradually increased, and the electronic equipment needs to keep the normal working temperature to exert the computing performance required by users.

At present, the cooling measures mainly introduce the indoor air of the machine room and the outdoor air of the machine room into the air conditioning unit for heat exchange work, so that the outdoor air of the machine room absorbs the heat of the indoor air of the machine room, and the cooled indoor air of the machine room flows back into the machine room again. Through the reciprocating heat dissipation circulation process, the indoor air temperature of the machine room is reduced, so that the electronic equipment operates in a normal working temperature range.

In the process of implementing the present utility model, the inventor finds that at least the following problems exist in the prior art: the heat exchange efficiency of the air conditioning unit in the prior art is low.

Disclosure of Invention

The utility model provides a heat exchange core and an air conditioning unit, which have higher heat exchange efficiency.

The utility model provides a heat exchange core body, which comprises an indoor air channel and an outdoor air channel, wherein the indoor air channel and the outdoor air channel respectively comprise a first diversion section and a countercurrent section which are connected in sequence; on a first plane, the cross section of the first flow guiding section is a first triangle, the cross section of the countercurrent section is a rectangle, the first triangle and the rectangle share a first long side of the rectangle, the first plane is parallel or coincident with a second plane, and the second plane comprises a coincident projection surface of the indoor air duct and the outdoor air duct; in the countercurrent section, the direction of air flow in the indoor air duct is opposite to that in the outdoor air duct.

In one possible design, the distance from the vertex of the rectangle to the first long side of the first triangle is smaller than the short side of the rectangle.

In one possible design, the indoor air duct and the outdoor air duct respectively further comprise a second flow guiding section, the first flow guiding section, the countercurrent section and the second flow guiding section are sequentially connected, the section of the second flow guiding section is in a second triangle on the first plane, the second triangle and the rectangle share a second long side of the rectangle, and the distance from the vertex of the rectangle to the second long side of the second triangle is smaller than the short side of the rectangle.

In one possible design, the heat exchange core has a set width W, and the first flow guiding sections of the indoor air duct and/or the outdoor air duct each have a set total width W1, satisfying w1=0.518-0.707W.

In one possible design, the heat exchange core has a set width W, and the second flow guiding sections of the indoor air duct and/or the outdoor air duct each have a set total width W1, satisfying w1=0.518-0.707W.

In one possible design, the heat exchange core has a set width W and the counter flow section has a set length L1, satisfying w=1l1 to 4l1.

In one possible design, the heat exchange core has a set width W and the counter flow section has a set length L1, satisfying w= 1.5L1 to 2.5L1.

In one possible design, the indoor air duct includes a plurality of indoor flow channels, the outdoor air duct includes a plurality of outdoor flow channels, and the indoor flow channels and/or the outdoor flow channels each have a set width W3 and a set height H1, satisfying w3=10h1 to 15h1.

In one possible design, each of the indoor flow channel and the outdoor flow channel includes a first flow channel guide section, a flow channel countercurrent section and a second flow channel guide section, the first flow channel guide section and the second flow channel guide section are respectively bent relative to the flow channel countercurrent section, the heat exchange core includes a plurality of first partition boards arranged at intervals, the first partition boards are respectively used as side walls of the indoor flow channel and the outdoor flow channel, the first partition boards include first bending sections located at two ends of the flow channel countercurrent section, the first bending sections have a set radius R1, and the indoor flow channel and/or the outdoor flow channel have a set width W3, so that r1= 3.4W3-5.1W3 is satisfied.

In one possible design, the heat exchange core further includes a second partition plate, the second partition plate is located in the flow channel countercurrent section and extends to the junction of the first flow channel diversion section and the flow channel countercurrent section, and extends to the junction of the second flow channel diversion section and the flow channel countercurrent section, and the number of the second partition plates located in the same indoor flow channel or outdoor flow channel is at least one.

In one possible design, the second separator includes second bending sections at both ends of the flow channel counter-flow section, the second bending sections having a set radius R3, the indoor flow channel and/or the outdoor flow channel each having a set width W3, satisfying r3= 3.4W3 to 5.1W3.

The second aspect of the utility model provides an air conditioning unit comprising a body and a heat exchange core; the heat exchange core body is arranged in the first accommodating cavity, the second accommodating cavity, the third accommodating cavity, the fourth accommodating cavity and the fifth accommodating cavity; the indoor air channel of the heat exchange core body is respectively communicated with the first accommodating cavity and the fifth accommodating cavity, and the outdoor air channel of the heat exchange core body is respectively communicated with the second accommodating cavity and the fourth accommodating cavity.

In one possible design, the side wall of the machine body is provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet; the first air inlet is arranged in the first accommodating cavity, the first air outlet is arranged in the fifth accommodating cavity, the second air inlet is arranged in the fourth accommodating cavity, and the second air outlet is arranged in the second accommodating cavity; or, the first air inlet is arranged in the fifth accommodating cavity, the first air outlet is arranged in the first accommodating cavity, the second air inlet is arranged in the second accommodating cavity, and the second air outlet is arranged in the fourth accommodating cavity.

In one possible design, the air conditioning unit further includes a liquid spraying member disposed in the second accommodating chamber, the liquid spraying member being configured to spray the atomized liquid toward an outlet of the outdoor air duct of the heat exchange core; and/or, the air conditioning unit further comprises a liquid spraying piece, the liquid spraying piece is arranged in the fourth accommodating cavity, and the liquid spraying piece is used for spraying atomized liquid to the inlet of the outdoor air duct of the heat exchange core.

In one possible design, the air conditioning unit further comprises an indoor fan disposed within the fifth receiving cavity; and/or, the air conditioning unit further comprises an outdoor fan, and the outdoor fan is arranged at the second air outlet.

In one possible design, the air conditioning unit further comprises an evaporator, which is disposed in the fifth accommodation chamber; and/or, the air conditioning unit further comprises a condenser, and the condenser is arranged in the second accommodating cavity.

In one possible design, the air conditioning unit further comprises a filter screen, wherein at least one of the first receiving chamber, the second receiving chamber and the second air intake is provided with a filter screen.

In one possible design, the filter screen located in the first receiving chamber covers the inlet of the indoor air duct; and/or the filter screen positioned in the second accommodating cavity is positioned between the outdoor fan and the condenser.

In one possible design, the side wall of the heat exchange core is closely fitted to the side wall of the third accommodating chamber.

In one possible design, the heat exchange core is any of the heat exchange cores of the first aspect.

According to the utility model, the heat exchange core body is provided with the flow guide section and the countercurrent section, the cross section of the countercurrent section is rectangular by limiting the shape and the area of the cross section of the flow guide section and the countercurrent section on the first plane, and the cross section area of the countercurrent section is larger than that of the flow guide section, so that air in the indoor air duct and the outdoor air duct can exchange heat fully in the countercurrent section, the optimal heat exchange efficiency is achieved, and meanwhile, the wind resistance in the indoor air duct and the outdoor air duct is also optimal through the structure, and compared with the air conditioning equipment formed by the air conditioning equipment matched with the air conditioning equipment, the annual energy consumption of the unit is reduced by about 11+/-3% under the same heat exchange requirement.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

Drawings

FIG. 1 is a schematic view of a heat exchange core according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of the heat exchange core of fig. 1 along direction a, wherein only a single inner chamber frame, a single outer chamber frame, and a single total heat exchange membrane are shown;

FIG. 3 is a top view of the inner frame of the chamber of FIG. 1 in a first embodiment;

FIG. 4 is a top view of the outer frame of FIG. 1 in a first embodiment;

FIG. 5 is a top view of the inner frame of the chamber of FIG. 1 in a second embodiment;

FIG. 6 is a top view of the outer frame of FIG. 1 in a second embodiment;

FIG. 7 is a top view of the inner frame of the chamber of FIG. 1 in a third embodiment;

FIG. 8 is a top view of the outer frame of FIG. 1 in a third embodiment;

FIG. 9 is a top view of an indoor air duct and an outdoor air duct in a first embodiment;

FIG. 10 is a top view of an indoor air duct and an outdoor air duct in a second embodiment;

FIG. 11 is a top view of an indoor air duct and an outdoor air duct in a third embodiment;

FIG. 12 is a top view of an indoor air duct and an outdoor air duct in a fourth embodiment;

fig. 13 is a top view of an indoor air duct and an outdoor air duct in a fifth embodiment;

fig. 14 is a top view of an indoor air duct and an outdoor air duct in a sixth embodiment;

fig. 15 is a top view of an indoor air duct and an outdoor air duct in a seventh embodiment;

FIG. 16 is a top view of an indoor air duct and an outdoor air duct in an eighth embodiment;

FIG. 17 is a top view of an indoor air duct and an outdoor air duct in a ninth embodiment;

fig. 18 is a top view of an indoor air duct and an outdoor air duct in a tenth embodiment;

FIG. 19 is a top view of an indoor air duct and an outdoor air duct in an eleventh embodiment;

FIG. 20 is a top view of an indoor air duct and an outdoor air duct in a twelfth embodiment;

FIG. 21 is a top view of an indoor air duct and an outdoor air duct in a thirteenth embodiment;

fig. 22 is a schematic structural diagram of an air conditioning unit according to an embodiment of the present utility model.

Reference numerals:

10-an air conditioning unit;

1-a heat exchange core;

1 a-an indoor frame;

1 b-an outdoor frame;

1 c-a heat exchange membrane;

1 d-a first flow guiding section;

1 e-countercurrent section;

1 f-a second flow guiding section;

11-an indoor air duct;

111-an indoor flow channel;

12-an outdoor air duct;

121-an outdoor runner;

13-a first flow path diversion section;

14-a flow channel countercurrent section;

15-a second flow path diversion section;

16-a first separator;

161-a first bending section;

17-a second separator;

171-a second bending section;

2-a machine body;

21-a first accommodation chamber;

211-a first air inlet;

22-a second accommodation chamber;

221-a second air outlet;

23-a third accommodation chamber;

24-fourth accommodation chamber;

241-a second air inlet;

25-a fifth accommodation chamber;

251-a first space;

252-a second space;

253—a first separator plate;

253 a-opening;

254-a first air outlet;

26-a second divider;

3-a liquid spraying piece;

4-an indoor fan;

5-an outdoor fan;

6-an evaporator;

7-a condenser;

8-a filter screen.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Detailed Description

For a better understanding of the technical solution of the present utility model, the following detailed description of the embodiments of the present utility model refers to the accompanying drawings.

It should be understood that the described embodiments are merely 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 be within the scope of the utility model.

The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present utility model are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present utility model. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

The first aspect of the embodiment of the utility model provides a heat exchange core body, which can be applied to the technical field of air conditioners, and can be applied to equipment with the function of adjusting air temperature, such as building air conditioners, machine room air conditioners, factory air conditioners, vehicle air conditioners and the like.

Referring to fig. 1, the heat exchange core 1 may include a plurality of indoor frames 1a, a plurality of outdoor frames 1b, and a plurality of heat exchange membranes, where the indoor frames 1a and the outdoor frames 1b are staggered. Referring to fig. 2, a heat exchange film 1c is sandwiched between an indoor casing 1a and an outdoor casing 1b, a plurality of parallel indoor air passages 11 are provided in the indoor casing 1a, and a plurality of parallel outdoor air passages 12 are provided in the outdoor casing 1 b. The indoor air contacts one side of the heat exchange membrane 1c while passing through the indoor air duct 11, and the outdoor air contacts the other side of the heat exchange membrane 1c while passing through the outdoor air duct 12, and the outdoor air having a temperature difference exchanges heat with the indoor air through the heat exchange membrane 1 c.

Referring to fig. 2, the heat exchange core 1 includes an indoor air duct 11 located in an indoor frame 1a and an outdoor air duct 12 located in an outdoor frame 1b, the indoor air duct 11 and the outdoor air duct 12 respectively include a first diversion section 1d and a counter flow section 1e connected in sequence as shown in fig. 3 and 4, on the first plane, the cross section of the first diversion section 1d is in a first triangle (a shape projected in the thickness direction of the indoor frame 1a or a shape projected in the thickness direction of the outdoor frame 1 b), the cross section of the counter flow section 1e is in a rectangle (a shape projected in the thickness direction of the indoor frame 1a or a shape projected in the thickness direction of the outdoor frame 1 b), the first triangle and the rectangle share a first long side (as a dotted line located above in fig. 3) of the rectangle, the first plane is parallel to or coincides with a second plane, the second plane includes a coincident projection plane of the indoor air duct 11 and the outdoor air duct 12, and in the counter flow section 1e, the airflow direction in the indoor air duct 11 and the airflow direction in the outdoor air duct 12 are opposite. Under the arrangement, the countercurrent section 1e is rectangular, a larger fluid inlet and a larger fluid outlet can be arranged, the wind resistance is smaller, meanwhile, the heat exchange area of the countercurrent section 1e is larger, the temperature difference between any position in the countercurrent section 1e of the indoor air duct 11 and the corresponding position in the countercurrent section 1e of the outdoor air duct 12 is relatively larger, and compared with the homodromous heat exchange mode of the heat exchange core in the prior art, the heat exchange efficiency of the heat exchange core 1 of the embodiment of the utility model is higher. Wherein the center line with the open arrow in fig. 3 and 4 is the flow direction of the air flow.

Optionally, as shown in fig. 3, the distance from the vertex of the rectangle to the first long side of the first triangle is smaller than the short side of the rectangle, under this arrangement, the total area of the countercurrent section 1e is larger than the total area of the first diversion section 1d, the heat exchange area of the countercurrent section 1e is larger, the fluid inlet widths of the indoor air duct 11 and the outdoor air duct 12 of the first diversion section 1d are wider, the wind resistance is smaller, and the number of the indoor flow channels and the outdoor flow channels of the countercurrent section 1e can be larger, so under this arrangement, the heat exchange efficiency and the wind resistance of the countercurrent section 1e are both optimal.

Optionally, referring to fig. 3 to 4, the indoor air duct 11 and the outdoor air duct 12 further include a second flow guiding section 1f, where the first flow guiding section 1d, the counter flow section 1e, and the second flow guiding section 1f are sequentially connected, and on the first plane, the cross section of the second flow guiding section 1f is a second triangle, the second triangle and the rectangle share a second long side (as a dashed line located below in fig. 3) of the rectangle, and a distance from a vertex of the second triangle away from the rectangle to the second long side is smaller than a short side of the rectangle. Under this setting, the total area of the countercurrent section 1e is larger than the total area of the second diversion section 1f, the heat exchange area of the countercurrent section 1e is larger, and the fluid outlet widths of the indoor air duct 11 and the outdoor air duct 12 of the second diversion section 1f are wider, the wind resistance is smaller, and the number of the indoor flow passages and the outdoor flow passages of the countercurrent section 1e can also be set larger, so under this setting, the heat exchange efficiency and the wind resistance of the countercurrent section 1e are both optimized.

Alternatively, as shown in fig. 3 to 4, specifically, the heat exchange core 1 has a set width W, and the indoor air duct 11 and/or the first guiding section 1d of the outdoor air duct 12 each has a set total width W1, so as to satisfy w1=0.518W to 0.707W. Under this setting, the width W of the heat exchange core 1 is the length of the first long side of the countercurrent section 1e, and the total width W1 of the first diversion section 1d has a corresponding relationship with the distance from the vertex of the rectangle to the first long side, because the distance from the vertex of the rectangle to the first long side is smaller than the short side of the rectangle, the total width W1 of the first diversion section 1d has a larger fluid inlet width, and therefore, under this setting, the heat exchange efficiency and the windage of the countercurrent section 1e are both optimal.

Where w1=0.518W, W1 =0.55W, W1 =0.6W, W1 =0.65W, W1=0.7W or w1=0.707W may be satisfied.

Alternatively, as shown in fig. 3 to 4, the heat exchange core 1 has a set width W, and the second guide sections 1f of the indoor air duct 11 and/or the outdoor air duct 12 each have a set total width W1, so as to satisfy w1=0.518 to 0.707W. Under this setting, the width W of the heat exchange core 1 is the length of the second long side of the countercurrent section 1e, and the total width W1 of the second diversion section 1f has a corresponding relationship with the distance from the vertex of the rectangle to the second long side, because the distance from the vertex of the rectangle to the second long side is smaller than the short side of the rectangle, the total width W1 of the second diversion section 1f has a larger fluid outlet width, and therefore, under this setting, the heat exchange efficiency and the windage of the countercurrent section 1e are both optimal.

Where w1=0.518W, W1 =0.55W, W1 =0.6W, W1 =0.65W, W1=0.7W or w1=0.707W may be satisfied.

Alternatively, as shown in fig. 3 to 4, the heat exchange core 1 has a set width W, and the countercurrent section 1e has a set length L1, satisfying w=1l1 to 4l1. With this arrangement, the width W of the heat exchange core 1 has a correspondence with the first long side and the second long side of the rectangle of the countercurrent section 1e, and the length L1 of the countercurrent section 1e has a correspondence with the short side of the rectangle of the countercurrent section 1e, so that the air flow of the countercurrent section 1e entering the indoor air duct 11 and the air flow of the countercurrent section 1e entering the outdoor air duct 12 can exchange heat sufficiently, and the heat exchange efficiency is high.

Where w=1l1, w= 1.5L1, w=2l1, w= 2.5L1, w=3l1, w= 3.5L1, or w=4l1 may be satisfied; the most preferred is to meet w= 1.5L1 to 2.2L1, and in this arrangement, the heat exchange efficiency and wind resistance of the countercurrent section 1e are both optimal, and at the same time, the most simplified production process conditions for practical use and the optimization of installation use are met.

Alternatively, as shown in fig. 5-6, the indoor air duct 11 includes a plurality of indoor channels 111, the outdoor air duct 12 includes a plurality of outdoor channels 121, and the indoor channels 111 and/or the outdoor channels 121 each have a set width W3 and a set height H1, so as to satisfy w3=10h1 to 15h1. With this arrangement, the air resistance of the single indoor flow passage 111 and/or the outdoor flow passage 121 is made small by the set width and height, and has high structural strength, satisfying the supporting strength of the indoor air duct and the outdoor air duct.

Where w3=10h1, w3=11h1, w3=12h1, w3=13h1, w3=14h1, or w3=15h1 may be satisfied.

Alternatively, as shown in fig. 2, 7 and 8, each of the indoor flow channel 111 and the outdoor flow channel 121 includes a first flow channel guiding section 13, a flow channel countercurrent section 14 and a second flow channel guiding section 15, the first flow channel guiding section 13 and the second flow channel guiding section 15 are respectively bent relative to the flow channel countercurrent section 14, the heat exchange core 1 includes a plurality of first partition boards 16 arranged at intervals, the first partition boards 16 are respectively used as side walls of the indoor flow channel 111 and the outdoor flow channel 121, the first partition boards 16 include first bending sections 161 located at two ends of the flow channel countercurrent section 14, the first bending sections 161 have a set radius R1, and the indoor flow channel 111 and/or the outdoor flow channel 121 have a set width W3, so as to satisfy r1= 3.4W3-5.1W3. With the arrangement, the smoothness of the indoor and outdoor air flow in the inlet and outlet directions and the flow resistance loss of the fluid diversion can be considered, so that the indoor and outdoor air flow can be smoothly guided into the flow channel countercurrent section 14 and guided out to the indoor and outdoor, and the flow resistance loss during the fluid diversion of the indoor and outdoor air flow can be reduced. The center line with the open arrow in fig. 7 and 8 is the flow direction of the air flow.

Where r1= 3.4W3, r1=4w3, r1= 4.5W3, r1=5w3, or r1= 5.1W3 may be satisfied.

Optionally, referring to fig. 2, 7 and 8, the heat exchange core 1 further includes a second partition 17, where the second partition 17 is located in the flow-path counter-flow section 14 and extends to the junction between the first flow-path guiding section 13 and the flow-path counter-flow section 14, and extends to the junction between the second flow-path guiding section 15 and the flow-path counter-flow section 14, and the number of second partitions 17 located in the same indoor flow path 111 or outdoor flow path 121 is at least one. In this arrangement, the flow path counterflow section 14 can be divided into at least two regions, the air flow can be sufficiently guided into the respective positions of the flow path counterflow section 14 by the second partition 17, the air flow can sufficiently complete the heat exchange, and the second partition 17 also serves to enhance the structural strength of the heat exchange core 1.

Alternatively, as shown in fig. 7 to 8, the second partition 17 includes second bending sections 171 located at two ends of the flow channel counter-flow section 14, the second bending sections 171 have a set radius R2, and the indoor flow channel 111 and/or the outdoor flow channel 121 each have a set width W3, so as to satisfy r2= 3.4W3 to 5.1W3. With the arrangement, the smoothness of the indoor and outdoor air flow in the inlet and outlet directions and the flow resistance loss of the fluid diversion can be considered, so that the indoor and outdoor air flow can be smoothly guided into the flow channel countercurrent section 14 and guided out to the indoor and outdoor, and the flow resistance loss during the fluid diversion of the indoor and outdoor air flow can be reduced.

Where r2= 3.4W3, r2=4w3, r2= 4.5W3, r2=5w3, or r2= 5.1W3 may be satisfied.

The heat exchange core 1 of the embodiment of the utility model makes the section of the countercurrent section 1e rectangular by limiting the shape and the area of the section of the first diversion section 1d, the countercurrent section 1e and the second diversion section 1f on the first plane, and the area of the section of the countercurrent section 1e is larger than the section area of the first diversion section 1d and the section area of the second diversion section 1f, so that the air in the indoor air duct 11 and the outdoor air duct 12 can exchange heat fully in the countercurrent section 1e, the optimal heat exchange efficiency is achieved, and meanwhile, the wind resistance in the indoor air duct 11 and the outdoor air duct 12 is smaller through the structure, and compared with the air conditioning equipment formed by combining the unit equipment with the same type of air conditioning equipment, the annual energy consumption of the unit is reduced by about 11+/-3% under the same heat exchange requirement.

Fig. 1 is only a block diagram of an embodiment of the present utility model, and besides, the heat exchange core 1 of the present utility model may be other existing structural shapes, which is not limited in any way. The directions of the indoor air duct 11 and the outdoor air duct 12 may also be as shown in fig. 9 to 21.

In a second aspect of the present utility model, referring to fig. 22, an air conditioning unit 10 is provided, where a first accommodating chamber 21, a second accommodating chamber 22, a third accommodating chamber 23, a fourth accommodating chamber 24 and a fifth accommodating chamber 25 are disposed in the body 2, the first accommodating chamber 21 and the second accommodating chamber 22 are adjacent to the top of the third accommodating chamber 23, the fourth accommodating chamber 24 and the fifth accommodating chamber 25 are adjacent to the bottom of the third accommodating chamber 23, the heat exchange core 1 is located in the third accommodating chamber 23, the indoor air duct 11 of the heat exchange core 1 is respectively communicated with the first accommodating chamber 21 and the fifth accommodating chamber 25, and the outdoor air duct 12 of the heat exchange core 1 is respectively communicated with the second accommodating chamber 22 and the fourth accommodating chamber 24. In this arrangement, the indoor air may circulate in the passage formed by the first accommodating chamber 21, the indoor air duct 11, and the fifth accommodating chamber 25, and the outdoor air may circulate in the passage formed by the fourth accommodating chamber 24, the outdoor air duct 12, and the second accommodating chamber 22.

The heat exchange core 1 may be the heat exchange core 1 described in the foregoing, and therefore, the air conditioning unit 10 may have the technical effects related to the heat exchange core 1 in the foregoing, which are not described herein.

Alternatively, as shown in fig. 22, the side wall of the machine body 2 is provided with a first air inlet 211, a first air outlet 254, a second air inlet 241, and a second air outlet 221, wherein the first air inlet 211 is disposed in the first accommodating cavity 21, the first air outlet 254 is disposed in the fifth accommodating cavity 25, the second air inlet 241 is disposed in the fourth accommodating cavity 24, and the second air outlet 221 is disposed in the second accommodating cavity 22.

In this embodiment, as shown in fig. 22, the first air inlet 211 and the first air outlet 254 are both used for communicating with the indoor air duct 11 of the heat exchange core 1, the indoor air flow can enter the first accommodating cavity 21 through the first air inlet 211, then enter the indoor air duct 11 of the heat exchange core 1 from the first accommodating cavity 21, after heat exchange, the indoor air flow flows from the indoor air duct 11 to the first air outlet 254 through the fifth accommodating cavity 25, and finally the indoor air flows back to the room through the first air outlet 254, which is the circulating and circulating process of the indoor air in the air conditioning unit 10 in the embodiment of the present utility model. The outdoor air flow (outdoor air) outside the machine body 2 can enter the fourth accommodating chamber 24 through the second air inlet 241, then the outdoor air flow enters the outdoor air duct 12 of the heat exchange core 1 from the fourth accommodating chamber 24, then the outdoor air flow flows from the outdoor air duct 12 to the second air outlet 221 through the second accommodating chamber 22, and finally the outdoor air flow flows to the outside (outdoor) of the machine body 2 through the second air outlet 221, which is the circulating and circulating process of the outdoor air in the air conditioning unit 10 according to the embodiment of the present utility model.

From the above, it is understood that the indoor air and the outdoor air can perform heat exchange in the heat exchange core 1. In detail, when the temperature of the indoor air is higher and the temperature of the outdoor air is lower, heat conduction may be formed under the temperature difference condition, and heat of the indoor air may be conducted to the outdoor air such that the temperature of the indoor air flowing to the fifth receiving chamber 25 is lower than the temperature of the indoor air flowing to the first receiving chamber 21, and the temperature of the outdoor air flowing to the second receiving chamber 22 is higher than the temperature of the outdoor air flowing to the fourth receiving chamber 24.

As the temperature of the indoor air gradually decreases while passing through the heat exchange core 1, the density of the indoor air gradually increases, and the cooled indoor air itself has a tendency to move downward. In the embodiment of the present utility model, since the first accommodating chamber 21 is adjacent to the top of the third accommodating chamber 23, the fifth accommodating chamber 25 is adjacent to the bottom of the third accommodating chamber 23, the first air inlet 211 is located in the first accommodating chamber 21, the first air outlet 254 is located in the fifth accommodating chamber 25, and the heat exchange core 1 is located in the third accommodating chamber 23, it is understood that the structure for indoor air flow in the air conditioning unit 10 according to the embodiment of the present utility model is also a top-down arrangement, which can match the flow trend of the cooled indoor air, and therefore the cooled indoor air can flow faster in the air conditioning unit 10 according to the embodiment of the present utility model.

Accordingly, since the outdoor air gradually increases in temperature while passing through the heat exchange core 1, the density of the outdoor air gradually decreases, and the heated indoor air itself has a tendency to move upward. In the embodiment of the present utility model, since the fourth accommodating chamber 24 is adjacent to the bottom of the third accommodating chamber 23, the second accommodating chamber 22 is adjacent to the top of the third accommodating chamber 23, the second air inlet 241 is located in the fourth accommodating chamber 24, the second air outlet 221 is located in the second accommodating chamber 22, and the heat exchange core 1 is located in the third accommodating chamber 23, it is understood that the structure for outdoor air flow in the air conditioning unit 10 according to the embodiment of the present utility model is also a bottom-up arrangement, which can match the flow trend of the heated outdoor air, and therefore the heated outdoor air can flow faster in the air conditioning unit 10 according to the embodiment of the present utility model.

In summary, the structural arrangement of the air conditioning unit 10 according to the embodiment of the present utility model can increase the flow velocity of the cooled indoor air, so that the cooled indoor air can quickly flow back into the room, and the uncooled indoor air can also quickly fill the heat exchange core 1. Accordingly, the structural arrangement of the air conditioning unit 10 according to the embodiment of the present utility model can also increase the flow speed of the heated outdoor air, so that the heated outdoor air can quickly flow to the outside (outdoor) of the machine body 2, and the unheated outdoor air can also quickly fill into the heat exchange core 1. Therefore, the air conditioning unit 10 of the embodiment of the present utility model can perform more air exchange per unit time, i.e., has higher heat exchange efficiency, and requires less energy to drive the flow of indoor air and outdoor air.

In other embodiments (not shown in the drawings), the first air inlet may be disposed in the fifth accommodating cavity, the first air outlet may be disposed in the first accommodating cavity, the second air inlet may be disposed in the second accommodating cavity, and the second air outlet may be disposed in the fourth accommodating cavity, so that the heat exchange effect of the indoor air and the outdoor air may be completed, which is not described herein.

The flow of indoor air and the flow of outdoor air may be fan drives inside the air conditioning unit 10 of the embodiment of the present utility model, or fan drives outside the air conditioning unit 10 of the embodiment of the present utility model. The following description will be mainly given by taking, as an example, fan-driven indoor air and outdoor air flow inside the air conditioning unit 10 of the embodiment of the present utility model.

In addition, the air conditioning unit in the embodiment of the utility model is used as a unit with a heat exchange function in refrigeration equipment such as an air conditioner.

Alternatively, as shown in fig. 22, the side wall of the heat exchange core 1 is closely attached to the side wall of the third accommodating cavity 23. So that the indoor air in the first accommodating chamber 21 flows only through the indoor air duct 11 of the heat exchange core 1 to the fifth accommodating chamber 25, and the outdoor air in the fourth accommodating chamber 24 flows only through the outdoor air duct 12 of the heat exchange core 1 to the second accommodating chamber 22, so that the indoor air and the outdoor air exchange heat sufficiently.

Alternatively, as shown in fig. 22, the air conditioning unit 10 further includes a liquid spraying member 3, where the liquid spraying member 3 is disposed in the second accommodating chamber 22, and the liquid spraying member 3 is used for spraying atomized liquid to the outlet of the outdoor air duct 12 of the heat exchange core 1. In this arrangement, the atomized liquid sprayed from the liquid spraying member 3 can enter the outdoor air passage 12 and then enter the fourth accommodating chamber 24 through the outdoor air passage 12. The liquid in the outdoor air duct 12 can absorb heat of indoor air in the indoor air duct 11, that is, the liquid and the outdoor air can cooperatively cool the indoor air, so that the cooling efficiency of the indoor air can be further improved, and therefore, the heat exchange effect of the air conditioning unit 10 in the embodiment of the utility model is better.

Alternatively, as shown in fig. 22, the air conditioning unit 10 further includes a liquid spraying member 3, where the liquid spraying member 3 is disposed in the fourth accommodating chamber 24, and the liquid spraying member 3 is used for spraying atomized liquid to the inlet of the outdoor air duct 12 of the heat exchange core 1. With this arrangement, the atomized liquid sprayed by the liquid spraying member 3 located in the fourth accommodating chamber 24 can absorb the heat of the outdoor air entering the fourth accommodating chamber 24 from the second air inlet 241, so that the outdoor air is cooled before entering the heat exchange core 1, the temperature difference between the cooled outdoor air and the uncooled indoor air is larger, the heat conduction efficiency is higher, and the heat of the indoor air can be more conducted to the outdoor air, i.e., the cooling efficiency of the indoor air is further improved, and therefore, the heat exchange effect of the air conditioning unit 10 of the embodiment of the present utility model is better.

Alternatively, referring to fig. 22, the air conditioning unit 10 further includes an indoor fan 4, and the indoor fan 4 is disposed in the fifth accommodating chamber 25. The indoor fan 4 is configured to drive the indoor air in the air conditioning unit 10 to flow, and in detail, in a rotating state, the indoor fan 4 may generate a negative pressure effect on the fifth accommodating chamber 25, the indoor air duct 11, and the first accommodating chamber 21, so that the indoor air is sucked into the first accommodating chamber 21, the indoor air duct 11, and the fifth accommodating chamber 25 through the first air inlet 211 until the indoor air flows back into the room through the first air outlet 254.

As shown in fig. 22, the machine body 2 may include a first partition 253, and the fifth receiving chamber 25 includes a first space 251 and a second space 252 partitioned by the first partition 253. The first partition plate 253 is provided with an opening 253a, and the indoor fan 4 is located in the opening 253 a.

In addition, as shown in fig. 22, the machine body 2 may further include a second partition plate 26, where the second partition plate 26 is used for separating the second space 252 and the fourth accommodating cavity 24, and the second space 252 is located below the fourth accommodating cavity 24, and when the fourth accommodating cavity 24 accumulates the cooling liquid, the cooling liquid located in the fourth accommodating cavity 24 may absorb the heat in the second space 252, so as to reduce the possibility that the indoor air located in the second space 252 is affected by the heat outside the machine body 2.

Alternatively, referring to fig. 22, the air conditioning unit 10 further includes an outdoor fan 5, where the outdoor fan 5 is disposed at the second air outlet 221. In this arrangement, the outdoor fan 5 is configured to generate a negative pressure effect on the second accommodating chamber 22, the outdoor air duct 12, and the fourth accommodating chamber 24 in a rotating state, to suck outdoor air from the second air inlet 241 to the fourth accommodating chamber 24, the outdoor air duct 12, and the second accommodating chamber 22, and finally to discharge the outdoor air from the second air outlet 221 to the outside (outdoor) of the machine body 2. The outdoor fan 5 may make the outdoor air flow at a more stable flow rate in the air conditioning unit 10 so that the heat exchanging effect is controllable, and the user may make the outdoor air flow at a preset speed by adjusting the rotation speed of the outdoor fan 5 so as to satisfy the heat exchanging effect required by the user.

Alternatively, referring to fig. 22, the air conditioning unit 10 further includes an evaporator 6, and the evaporator 6 is disposed in the fifth accommodating chamber 25. The indoor air is absorbed by the refrigerant in the evaporator 6 while passing through the evaporator 6, and the indoor air can be secondarily cooled, so that the heat exchange effect of the air conditioning unit 10 of the embodiment of the present utility model is better. Further, since the space in the fifth accommodating chamber 25 is partitioned by the evaporator 6, the indoor air can flow to the first air outlet 254 only through the evaporator 6, and thus the indoor air can be sufficiently cooled by the evaporator 6, and the cooling effect is better.

Alternatively, referring to fig. 22, the air conditioning unit 10 further includes a condenser 7, and the condenser 7 is disposed in the second accommodating chamber 22. The outdoor air absorbs heat of the refrigerant in the condenser 7 while passing through the condenser 7, and the heat of the condenser 7 comes from the heat absorbed by the refrigerant of the evaporator 6. The refrigerant of the condenser 7 is returned to the evaporator 6 after heat dissipation to absorb heat of indoor air, thereby forming heat dissipation circulation. Further, since the second accommodating chamber 22 is partitioned by the condenser 7, the outdoor air can flow to the second air outlet 221 only through the condenser 7, and thus the outdoor air can sufficiently absorb heat of the condenser 7 so that the refrigerant in the condenser 7 can sufficiently dissipate heat.

Optionally, referring to fig. 22, the air conditioning unit 10 further includes a filter 8, where at least one of the first accommodating chamber 21, the second accommodating chamber 22, and the second air inlet 241 is provided with the filter 8.

Referring to fig. 22, the filter 8 disposed in the first accommodating chamber 21 is used to reduce the possibility of impurities in the indoor air flowing into the heat exchange core 1. Referring to fig. 22, the filter screen 8 positioned in the second accommodating chamber 22 serves to reduce the possibility of foreign matters of the outdoor air flowing into the air conditioning unit 10. Referring to fig. 22, the filter 8 disposed at the second air inlet 241 is used to reduce the possibility of impurities in the outdoor air flowing into the air conditioning unit 10.

Alternatively, as shown in fig. 22, the filter screen 8 disposed in the first accommodating chamber 21 covers the inlet of the indoor air duct 11, so as to reduce the possibility of impurities in the indoor air flowing into the heat exchange core 1.

Alternatively, as shown in fig. 22, the filter screen 8 disposed in the second accommodating chamber 22 is disposed between the outdoor fan 5 and the condenser 7, so as to reduce the possibility that the outdoor air impurities move to the condenser 7 through the second air outlet 221.

Moreover, by adopting the heat exchange core body 1 and the air conditioning unit of the embodiment and combining the air conditioning equipment formed by the matched unit equipment, the annual energy consumption of the unit is reduced by about 11+/-3% compared with the same type of air conditioning equipment under the same heat exchange quantity.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (20)

1. The heat exchange core is characterized by comprising an indoor air duct and an outdoor air duct, wherein the indoor air duct and the outdoor air duct respectively comprise a first diversion section and a countercurrent section which are connected in sequence; on a first plane, the cross section of the first flow guiding section is a first triangle, the cross section of the countercurrent section is a rectangle, the first triangle and the rectangle share a first long side of the rectangle, the first plane is parallel or coincident with a second plane, and the second plane comprises a coincident projection plane of the indoor air duct and the outdoor air duct;

in the countercurrent section, the direction of air flow in the indoor air channel is opposite to the direction of air flow in the outdoor air channel.

2. The heat exchange core of claim 1, wherein the first triangle is farther from the apex of the rectangle than the first long side is to the shorter side of the rectangle.

3. The heat exchange core according to claim 1, wherein the indoor air duct and the outdoor air duct further comprise second flow guiding sections, the first flow guiding sections, the counter flow sections and the second flow guiding sections are sequentially connected, the section of the second flow guiding sections is a second triangle on the first plane, the second triangle shares a second long side of the rectangle with the rectangle, and a distance from a vertex of the rectangle to the second long side of the second triangle is smaller than a short side of the rectangle.

4. The heat exchange core according to claim 1, wherein the heat exchange core has a set width W, and the first flow guiding sections of the indoor air duct and/or the outdoor air duct each have a set total width W1, satisfying w1=0.518W to 0.707W.

5. A heat exchange core according to claim 3, wherein the heat exchange core has a set width W, and the second flow guiding sections of the indoor air duct and/or the outdoor air duct each have a set total width W1, satisfying w1=0.518W to 0.707W.

6. The heat exchange core according to claim 1, wherein the heat exchange core has a set width W and the counter flow section has a set length L1, satisfying W = 1L 1-4L 1.

7. The heat exchange core of claim 6 wherein the heat exchange core has a set width W and the counter flow section has a set length L1, satisfying W = 1.5L1-2.5L1.

8. A heat exchange core according to claim 3, wherein the indoor air duct comprises a plurality of indoor flow channels and the outdoor air duct comprises a plurality of outdoor flow channels, the indoor flow channels and/or the outdoor flow channels each having a set width W3 and a set height H1, satisfying w3=10h1 to 15h1.

9. The heat exchange core of claim 8, wherein each of the indoor and outdoor flow channels comprises a first flow channel guide section, a flow channel counter-flow section and a second flow channel guide section, the first and second flow channel guide sections being respectively bent with respect to the flow channel counter-flow section, the heat exchange core comprising a plurality of first partitions arranged at intervals, the first partitions respectively serving as side walls of the indoor and outdoor flow channels, the first partitions comprising first bent sections at both ends of the flow channel counter-flow section, the first bent sections having a set radius R1, and the indoor and/or outdoor flow channels each having a set width W3, satisfying r1= 3.4W3-5.1W3.

10. The heat exchange core of claim 9 further comprising a second separator positioned within the flow path reversing section and extending to the junction of the first flow path directing section and the flow path reversing section and to the junction of the second flow path directing section and the flow path reversing section, and wherein the number of second separators positioned in the same indoor flow path or outdoor flow path is at least one.

11. The heat exchange core according to claim 10, wherein the second separator comprises second bending sections at both ends of the flow channel counter flow section, the second bending sections having a set radius R2, and the indoor flow channel and/or the outdoor flow channel each having a set width W3, satisfying r2= 3.4W3 to 5.1W3.

12. An air conditioning unit is characterized by comprising a machine body and a heat exchange core body;

the heat exchange core body is arranged in the third accommodating cavity, the first accommodating cavity and the second accommodating cavity are adjacent to the top of the third accommodating cavity, the fourth accommodating cavity and the fifth accommodating cavity are adjacent to the bottom of the third accommodating cavity, and the heat exchange core body is arranged in the third accommodating cavity;

the indoor air channel of the heat exchange core body is respectively communicated with the first accommodating cavity and the fifth accommodating cavity, and the outdoor air channel of the heat exchange core body is respectively communicated with the second accommodating cavity and the fourth accommodating cavity.

13. The air conditioning unit of claim 12, wherein the body side wall is provided with a first air inlet, a first air outlet, a second air inlet, a second air outlet;

the first air inlet is arranged in the first accommodating cavity, the first air outlet is arranged in the fifth accommodating cavity, the second air inlet is arranged in the fourth accommodating cavity, and the second air outlet is arranged in the second accommodating cavity;

or, the first air inlet is arranged in the fifth accommodating cavity, the first air outlet is arranged in the first accommodating cavity, the second air inlet is arranged in the second accommodating cavity, and the second air outlet is arranged in the fourth accommodating cavity.

14. The air conditioning unit according to claim 13, further comprising a liquid spraying member disposed in the second accommodating chamber, the liquid spraying member being for spraying atomized liquid to an outlet of the outdoor air duct of the heat exchange core;

and/or, the air conditioning unit further comprises a liquid spraying piece, wherein the liquid spraying piece is arranged in the fourth accommodating cavity and is used for spraying atomized liquid to the inlet of the outdoor air duct of the heat exchange core.

15. The air conditioning unit of claim 13, further comprising an indoor fan disposed within the fifth receiving cavity;

and/or, the air conditioning unit further comprises an outdoor fan, and the outdoor fan is arranged at the second air outlet.

16. The air conditioning unit of claim 15, further comprising an evaporator disposed within the fifth receiving cavity;

and/or, the air conditioning unit further comprises a condenser, and the condenser is arranged in the second accommodating cavity.

17. The air conditioning unit of claim 16, further comprising a filter screen, wherein the filter screen is disposed in at least one of the first receiving cavity, the second receiving cavity, and the second air intake.

18. The air conditioning unit of claim 17, wherein the filter screen located within the first receiving chamber covers an inlet of the indoor air duct;

and/or the filter screen positioned in the second accommodating cavity is positioned between the outdoor fan and the condenser.

19. An air conditioning unit as recited in claim 13, wherein a sidewall of said heat exchange core is disposed in close apposition to a sidewall of said third receiving chamber.

20. An air conditioning unit according to any of claims 12-19, characterized in that the heat exchange core is a heat exchange core according to any of claims 1-11.