Heat exchange module and fresh air unit

Abstract

The present invention discloses a heat exchange module and a fresh air fan. The heat exchange module includes: a housing; a heat exchange channel disposed inside the housing, with two ends of the heat exchange channel being a first return air inlet and a return air outlet respectively; a fresh air duct is formed by the gap between the heat exchange channel and the inner sidewall of the housing, and a fresh air inlet and a fresh air outlet are provided on the housing at both ends of the fresh air duct. After the fresh air fan starts to work, the outdoor air entering the fresh air duct through the fresh air inlet exchanges heat with the indoor air entering the heat exchange channel. After heat exchange, the gas exchanges heat with the indoor air outside the housing again. In this way, the housing, as the outermost structure, completely wraps the outdoor air inside the housing and the indoor air in the heat exchange channel. When the housing is indoors, it acts as a return air part to wrap the fresh air to participate in heat exchange. The outdoor air is in the middle of the indoor air in the heat exchange channel and the indoor air outside the housing, making the heat exchange more sufficient and improving the comfort of users.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation systems and air purification equipment, and in particular to a heat exchange module and a fresh air blower. Background Art

[0002] The heat exchange efficiency of the fresh air fans used for heat exchange on the market is not sufficient. When using the fresh air fans, there is a large difference between the fresh air delivered into the room and the indoor temperature, which brings an uncomfortable experience to users. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a heat exchange module that facilitates sufficient heat exchange and improves user comfort.

[0004] The present invention also provides a new air blower using the above heat exchange module.

[0005] According to the first aspect of the present invention, the heat exchange module includes: a shell; a heat exchange channel, which is arranged inside the shell, and the two ends of the heat exchange channel are respectively a first return air inlet and a return air outlet; the gap between the heat exchange channel and the inner wall of the shell constitutes a fresh air duct, and the fresh air inlet and the fresh air outlet are arranged on the shell at both ends of the fresh air duct.

[0006] The fresh air fan according to the embodiment of the present invention has at least the following beneficial effects: with the above-mentioned structure, after the heat exchange module is turned on, the outdoor air entering the fresh air duct along the fresh air inlet is heat-exchanged with the indoor air entering the heat exchange channel, and the gas after heat exchange is heat-exchanged again with the indoor air outside the shell. In this way, the shell, as the outermost structure, completely wraps the outdoor air in the shell and the indoor air in the heat exchange channel. When the shell is in the room, it wraps the fresh air as the return air part to participate in the heat exchange. The outdoor air is between the indoor air in the heat exchange channel and the indoor air outside the shell, so that the heat exchange is more sufficient and the user's comfort is improved.

[0007] According to some embodiments of the present invention, the heat exchange channel is arranged around the fresh air inlet.

[0008] According to some embodiments of the present invention, a first filtering structure for filtering air entering along the fresh air inlet is provided inside the housing.

[0009] According to some embodiments of the present invention, the first filter structure includes a filter screen surrounding the fresh air inlet and a first filter layer arranged around the filter screen.

[0010] According to some embodiments of the present invention, the heat exchange channel includes at least one heat exchange tube.

[0011] According to some embodiments of the present invention, there are multiple heat exchange tubes, and a partition structure is provided in the shell to allow multiple adjacent heat exchange tubes to be arranged with equal gaps.

[0012] According to some embodiments of the present invention, the shell has a first chamber and a first partition located in the first chamber, the first chamber is divided into a first space and a second space by the first partition, the first partition is provided with a first through hole for connecting the first space and the second space, the heat exchange channel and the fresh air inlet are both located in the first space, the fresh air outlet is connected to the second space, and the shell is provided with a second return air inlet connected to the second space and a second filter layer corresponding to the second return air inlet.

[0013] According to some embodiments of the present invention, a second partition is provided in the first space between the fresh air inlet and the heat exchange channel, and a second through hole is provided on the second partition for connecting the fresh air inlet to the area where the heat exchange channel is located.

[0014] According to some embodiments of the present invention, a second chamber located on one side of the first chamber is provided in the shell, a return air hole connected to the outside is provided on one side of the second chamber, the first return air inlet and the second return air inlet are provided on the other side of the second chamber, and the first return air inlet and the second return air inlet are both connected to the return air hole.

[0015] The fresh air blower according to the second embodiment of the present invention includes the heat exchange module described in the first embodiment.

[0016] The fresh air fan according to the embodiment of the present invention has at least the following beneficial effects: the heat exchange module is arranged in the fresh air fan. After the fresh air fan is started, the outdoor air entering the fresh air duct along the fresh air inlet is heat-exchanged with the indoor air entering the heat exchange channel. After the heat exchange, the gas is heat-exchanged again with the indoor air outside the shell. In this way, the shell, as the outermost structure, completely wraps the outdoor air in the shell and the indoor air in the heat exchange channel. When the shell is in the room, it wraps the fresh air as the return air part to participate in the heat exchange. The outdoor air is between the indoor air in the heat exchange channel and the indoor air outside the shell, so that the heat exchange is more sufficient and the user's comfort is improved.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0019] Figure 1 The first perspective structural schematic diagram of the fresh air blower according to the embodiment of the present invention;

[0020] Figure 2 The second perspective structural schematic diagram of the fresh air blower according to the embodiment of the present invention;

[0021] Figure 3 The internal schematic diagram of the fresh air blower according to the embodiment of the present invention;

[0022] Figure 4 The cross-sectional schematic diagram of the fresh air blower according to the embodiment of the present invention;

[0023] Figure 5 The exploded schematic diagram of the fresh air blower according to the embodiment of the present invention;

[0024] Figure 6 The principle schematic diagram of the fresh air blower according to the embodiment of the present invention;

[0025] Reference numerals:

[0026] Housing 10, first chamber 11, first space 111, second space 112, second return air inlet 12, second filter layer 13, second chamber 14, return air through hole 141, third chamber 15, air outlet 151;

[0027] Heat exchange channel 20, first return air inlet 21, return air outlet 22, heat exchange tube 23, fresh air duct 30, fresh air inlet 31, fresh air outlet 32, return air duct 40, first fan 51, second fan 52;

[0028] Filter net 61, first filter layer 62, partition member 70, partition convex portion 71;

[0029] First partition plate 80, first through hole 81, third through hole 82;

[0030] Second partition plate 90, second through hole 91. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0033] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, it should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0035] As Figures 1 to 6 shown, the heat exchange module according to the first aspect embodiment of the present invention includes: a housing 10; a heat exchange channel 20 disposed inside the housing 10, with two ends of the heat exchange channel 20 being a first return air inlet 21 and a return air outlet 22 respectively; a gap between the heat exchange channel 20 and the inner side wall of the housing 10 forms a fresh air duct 30, and a fresh air inlet 31 and a fresh air outlet 32 are provided on the housing 10 at both ends of the fresh air duct 30.

[0036] For the heat exchange module according to the embodiment of the present invention, adopting the above structure, after the fresh air blower is turned on and operates, the outdoor air entering the fresh air duct 30 along the fresh air inlet 31 exchanges heat with the indoor air entering the heat exchange channel 20, and the heat-exchanged gas exchanges heat with the indoor air outside the housing 10 again. Thus, the housing 10, as the outermost structure, completely wraps the outdoor air inside the housing 10 and the indoor air in the heat exchange channel 20. When the housing 10 is indoors, it acts as a return air part to wrap the fresh air and participate in heat exchange. The outdoor air is in the middle of the indoor air in the heat exchange channel 20 and the indoor air outside the housing 10, making the heat exchange more sufficient and improving the comfort of the user.

[0037] It should be noted that as Figures 2 to 5As shown, in some embodiments of the present invention, an air outlet 151 is provided on the housing 10. The return air outlet 22 at one end of the heat exchange channel 20 is communicated with the air outlet 151 to form a return air duct 40. A first fan 51 and a second fan 52 are provided inside the housing 10. The first fan 51 is arranged in the return air duct 40, that is, between the return air outlet 22 of the heat exchange channel 20 and the air outlet 151. The indoor air in the heat exchange channel 20 can be discharged to the outside of the housing 10 along the air outlet 151 through the first fan 51. The second fan 52 is arranged in the fresh air duct 30. The second fan 52 can draw the outdoor air entering from the fresh air inlet 31 to the fresh air outlet 32, and then transport it to the indoor, so that the gas can flow fully, further improving the heat exchange efficiency and heat exchange effect, and facilitating use.

[0038] It should be noted that, in some embodiments of the present invention, the number of the first fan 51 and the second fan 52 is one each. Of course, in some embodiments, the number of the first fan 51 and the second fan 52 can be set to two, three, or others, which are not limited herein.

[0039] It can be understood that, as Figures 3 to 5 shown, in some embodiments of the present invention, the heat exchange channel 20 is arranged around the fresh air inlet 31, which can enable the outdoor air in the housing 10 to exchange heat with the indoor air in the heat exchange channel 20.

[0040] As Figures 3 to 5 shown, in some embodiments of the present invention, a first filtering structure for filtering the air entering along the fresh air inlet 31 is provided inside the housing 10. With the above structure, the first filtering structure can filter the outdoor air entering from the fresh air inlet 31, and the filtered outdoor air exchanges heat with the outdoor air in the heat exchange channel 20. The structure is simple and reasonable, and the air quality is improved.

[0041] In some embodiments of the present invention, the first filtering structure includes a filter net 61 surrounding the fresh air inlet 31 and a first filtering layer 62 arranged around the filter net 61. The structure is simple and easy to implement. Of course, in some embodiments, the first filtering structure can also be other filtering forms, which are not limited herein.

[0042] It can be understood that, as Figures 3 to 5 shown, in some embodiments of the present invention, the heat exchange channel 20 includes at least one heat exchange tube 23. The heat exchange tube 23 is of a hollow structure. The first return air inlet 21 is located at one end of the heat exchange tube 23, and the return air outlet 22 is located at the other end of the heat exchange tube 23. The structure is simple and easy to implement.

[0043] In some embodiments of the present invention, there are multiple heat exchange tubes 23, and a partition structure is provided in the shell 10 to arrange multiple adjacent heat exchange tubes 23 with equal gaps, so that adjacent heat exchange tubes 23 are kept separated by a fixed gap, without affecting the flow of outdoor air in the shell 10, thereby ensuring the heat exchange effect between the outdoor air in the shell 10 and the indoor air in the heat exchange tubes 23.

[0044] It should be noted that the multiple heat exchange tubes 23 are divided into an inner ring heat exchange layer and an outer ring heat exchange layer. The outer ring heat exchange layer is arranged outside the inner ring heat exchange layer, and there is a distance between the inner and outer ring heat exchange layers. The use of the inner and outer ring heat exchange layer structure ensures more complete heat exchange and correspondingly higher heat exchange efficiency.

[0045] Of course, in some embodiments, the plurality of heat exchange tubes 23 may also be in a single layer, three layers, or more than three layers, which is not limited here.

[0046] It is understood that the heat exchange tube 23 is a curved structure. Of course, in some embodiments, the heat exchange channel 20 is a straight tube, a flat tube, a square tube, or any other shape. Regardless of whether the internal pipe is a straight tube or a circular, semi-circular, or any other shape, the fresh air blower still has the above-mentioned heat exchange effect. This is not a limitation.

[0047] like Figures 3 to 5 As shown, in some embodiments of the present invention, the partition structure includes a partition 70, on which a plurality of partition protrusions 71 are spaced apart. The partition protrusions 71 are inserted into the gap between two adjacent heat exchange tubes 23. The structure is simple and easy to implement. Of course, in some embodiments, the partition structure can also be other structures, which are not limited here.

[0048] It is understandable that if Figures 3 to 5As shown, in some embodiments of the present invention, the shell 10 has a first chamber 11 and a first partition 80 located in the first chamber 11, the first chamber 11 is divided into a first space 111 and a second space 112 by the first partition 80, and the first partition 80 is provided with a first through hole 81 for connecting the first space 111 and the second space 112, the heat exchange channel 20 and the fresh air inlet 31 are both located in the first space 111, the fresh air outlet 32 is connected to the second space 112, and the shell 10 is provided with a second return air inlet 12 connected to the second space 112 and a second filter layer 13 corresponding to the second return air inlet 12. With the above structure, the fresh air duct 30 flows through the first space 111 and the second space 112. After the outdoor air in the fresh air duct 30 located in the first space 111 exchanges heat with the indoor air in the heat exchange channel 20 and the indoor air outside the shell 10 respectively, it is transported to the second space 112 through the second fan 52. The gas in the second space 112 exchanges heat with the outdoor air entering through the second return air inlet 12 again, which improves the heat exchange area, heat exchange efficiency and air quality, and can fully exchange heat, so that the outdoor air temperature is closer to the indoor temperature, so that users do not feel uncomfortable due to temperature differences during use.

[0049] It is understood that in some embodiments of the present invention, a second partition plate 90 is provided in the first space 111, located between the fresh air inlet 31 and the heat exchange channel 20. The second partition plate 90 is provided with a second through hole 91 for connecting the fresh air inlet 31 to the area where the heat exchange channel 20 is located. It is understood that the second partition plate 90 divides the first space 111 into a first area and a second area. The fresh air inlet 31 and the first filter structure are both located in the first area, and the heat exchange channel 20 (i.e., the heat exchange tube 23) is located in the second area. The first area is connected to the second area through the second through hole 91. The outdoor air in the first area is filtered by the first filter structure, and the filtered outdoor air enters the second area through the second through hole 91 of the second partition plate 90. The outdoor air then exchanges heat with the indoor air in the heat exchange channel 20. The structure is simple and reasonable, and easy to implement.

[0050] It should be noted that in some embodiments of the present invention, a plurality of third through holes 82 are provided on the first partition plate 80, and the separation protrusions 71 of the partition 70 correspond one-to-one to the third through holes 82. The separation protrusions 71 pass through the third through holes 82 and extend into the gaps between adjacent heat exchange tubes 23. The structure is simple and easy to disassemble and assemble.

[0051] Of course, in some embodiments, the partition 70 may also be connected to the housing 10 , which is not limited here.

[0052] like Figures 3 to 5As shown, in some embodiments of the present invention, a second chamber 14 is provided in the housing 10, which is located on one side of the first chamber 11. A return air hole 141 communicating with the outside is provided on one side of the second chamber 14. A first return air inlet 21 and a second return air inlet 12 are provided on the other side of the second chamber 14, and both the first return air inlet 21 and the second return air inlet 12 are communicated with the return air hole 141. Indoor air first enters the second chamber 14 through the return air hole 141, and then part of the indoor air enters the heat exchange channel 20 (i.e., the heat exchange tube 23) through the first return air inlet 21 and exchanges heat with the outdoor air entering through the fresh air inlet 31. Another part of the indoor air enters the second space 112 through the second return air inlet 12 and exchanges heat. The structure is simple and easy to implement.

[0053] It should be noted that, in some embodiments of the present invention, the second filter layer 13 is located in the second chamber 14 , and the structure is simple and reasonable.

[0054] It should be noted that, in some embodiments of the present invention, the filter screen 61, the first filter layer 62 and the second filter layer 13 are all configured to be detachable, so as to facilitate disassembly, assembly and maintenance.

[0055] It is understandable that if Figures 3 to 5 As shown, in some embodiments of the present invention, a third chamber 15 is provided in the shell 10 and is located on the other side of the first chamber 11, the exhaust port 151 is located in the third chamber 15, the first fan 51 is located in the first chamber 11, and the second fan 52 is located in the second space 112. The structure is simple and easy to implement, and the internal space of the shell 10 is reasonably utilized, so that the structure of the fresh air fan is more compact, which is conducive to reducing the volume of the fresh air fan.

[0056] The fresh air blower according to the second embodiment of the present invention includes the heat exchange module described in the first embodiment.

[0057] According to the fresh air fan of an embodiment of the present invention, the heat exchange module is arranged in the fresh air fan, and the outdoor air entering the fresh air duct 30 along the fresh air inlet 31 is heat-exchanged with the indoor air entering the heat exchange channel 20. After the heat exchange, the gas is heat-exchanged again with the indoor air outside the shell 10. In this way, the shell 10, as the outermost structure, completely wraps the outdoor air in the shell 10 and the indoor air in the heat exchange channel 20. When the shell 10 is in the room, it wraps the fresh air as the return air part to participate in the heat exchange. The outdoor air is between the indoor air in the heat exchange channel 20 and the indoor air outside the shell 10, so that the heat exchange is more sufficient and the user's comfort is improved.

[0058] It should be noted that, in some embodiments of the present invention, the heat exchange module can be used alone, or two or more heat exchange modules can be used in combination, which is not limited here.

[0059] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] Of course, the invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Heat exchange module, characterized in that, Comprising: A housing (10), installed indoors; A heat exchange channel (20), arranged inside the housing (10), with two ends of the heat exchange channel (20) being a first return air inlet (21) and a return air outlet (22) respectively; The gap between the heat exchange channel (20) and the inner side wall of the housing (10) forms a fresh air duct (30), and the two ends of the fresh air duct (30) are provided with a fresh air inlet (31) and a fresh air outlet (32) on the housing (10). The outdoor air is in the middle of the indoor air in the heat exchange channel (20) and the indoor air outside the housing (10); The heat exchange channel (20) is arranged around the fresh air inlet (31); There is a first chamber (11) inside the housing (10) and a first partition (80) located in the first chamber (11). The first chamber (11) is divided into a first space (111) and a second space (112) by the first partition (80). A first through hole (81) for connecting the first space (111) and the second space (112) is provided on the first partition (80). Both the heat exchange channel (20) and the fresh air inlet (31) are located in the first space (111), the fresh air outlet (32) communicates with the second space (112), and a second return air inlet (12) communicating with the second space (112) and a second filter layer (13) corresponding to the second return air inlet (12) are provided inside the housing (10); A second partition (90) is provided in the first space (111) between the fresh air inlet (31) and the heat exchange channel (20). A second through hole (91) for connecting the fresh air inlet (31) to the area where the heat exchange channel (20) is located is provided on the second partition (90); The second partition (90) divides the first space (111) into a first area and a second area. The fresh air inlet (31) and the first filtering structure are both located in the first area, the heat exchange channel (20) is located in the second area, the first area communicates with the second area through the second through hole (91), the outdoor air in the first area is filtered by the first filtering structure, and the filtered outdoor air enters the second area through the second through hole (91) of the second partition (90), and then the outdoor air exchanges heat with the indoor air in the heat exchange channel (20).

2. The heat exchange module according to claim 1, wherein A first filtering structure for filtering the air entering along the fresh air inlet (31) is provided inside the housing (10).

3. The heat exchange module according to claim 2, characterized in that, The first filtering structure includes a filter net (61) surrounding the fresh air inlet (31) and a first filter layer (62) arranged around the filter net (61).

4. The heat exchange module according to claim 1, characterized in that The heat exchange channel (20) includes at least one heat exchange tube (23).

5. The heat exchange module according to claim 4, wherein The number of the heat exchange tubes (23) is multiple, and a partition structure is provided inside the housing (10) to enable the multiple adjacent heat exchange tubes (23) to be arranged at equal intervals.

6. The heat exchange module according to claim 1, characterized in that A second chamber (14) is provided inside the housing (10) on one side of the first chamber (11). An air return through hole (141) communicating with the outside is provided on one side of the second chamber (14). The first air return inlet (21) and the second air return inlet (12) are provided on the other side of the second chamber (14), and both the first air return inlet (21) and the second air return inlet (12) communicate with the air return through hole (141).

7. Fresh air blower, characterized in that, Comprising the heat exchange module according to any one of claims 1 to 6.

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