Full heat exchange core, fresh air blower

Abstract

The present application relates to the field of air conditioning technology, and discloses a full heat exchange core, including a plurality of heat exchange membranes, the plurality of heat exchange membranes are stacked, and an airflow channel is formed between each two adjacent heat exchange membranes, the plurality of heat exchange membranes form a multi-layer airflow channel, the airflow channels with odd numbers in the multi-layer airflow channel are connected in a first direction, and the airflow channels with even numbers in the multi-layer airflow channel are connected in a second direction, the heat exchange membranes with odd numbers in the plurality of heat exchange membranes are connected to a first electrode, and the heat exchange membranes with even numbers are connected to a second electrode. The present application also discloses a fresh air blower.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, for example, to a full heat exchange core and a fresh air blower. Background Art

[0002] The fresh air fan can exhaust the dirty indoor air to the outside and introduce fresh outdoor air into the room. The heat exchange core equipped with a full heat exchange core can exchange heat and water vapor between the air exhausted to the outside and the air introduced into the room, avoiding the loss of indoor cold or heat when using the fresh air fan, and keeping the indoor environment at a suitable humidity. In some usage environments, the outdoor air may contain a lot of dust and impurities. When using the fresh air fan, the dust and impurities enter the indoor environment with the outdoor air, which will affect the user experience.

[0003] In order to reduce the dust content of the air entering the room, the related art discloses an electrostatic dust removal type total heat exchanger, including a shell and a total heat exchange core, the total heat exchange core is installed in the shell, a fresh air outlet is set at the upper left corner of the shell, a fresh air inlet is set at the lower right corner, a polluted air inlet is set at the lower left corner, a polluted air outlet is set at the upper right corner, a fresh air fan is set at the fresh air inlet, a polluted air fan is set at the polluted air inlet, a fresh air filter system is set inside the fresh air inlet, and the fresh air filter system is set between the fresh air fan and the total heat exchange core. The fresh air filter system includes a primary filter, an electrostatic dust collection chamber and a nano honeycomb activated carbon filter, the electrostatic dust collection chamber is set between the primary filter and the nano honeycomb activated carbon filter, and the primary filter is set on the right side of the fresh air filter system.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] Setting up a fresh air filtration system can reduce the dust content in the air, but this will not only make the fresh air fan too large and inconvenient to install, but will also increase the air flow resistance and reduce the fresh air volume of the fresh air fan.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiments provide a full heat exchange core machine and a fresh air fan to solve the problem of how to better reduce the dust content of the fresh air fan intake.

[0009] In some embodiments, the full heat exchange core includes multiple heat exchange membranes, which are stacked and an air flow channel is formed between every two adjacent heat exchange membranes. The multiple heat exchange membranes form a multi-layer air flow channel, and the air flow channels with odd numbers in the multi-layer air flow channels are connected in a first direction, and the air flow channels with even numbers are connected in a second direction. The heat exchange membranes with odd numbers in the multiple heat exchange membranes are connected to the first electrode, and the heat exchange membranes with even numbers are connected to the second electrode.

[0010] In some embodiments, the full heat exchange core also includes a first conductive column and a second conductive column, wherein the first conductive column is electrically connected to the heat exchange membrane with an odd number among the multiple heat exchange membranes; the second conductive column is electrically connected to the heat exchange membrane with an even number among the multiple heat exchange membranes.

[0011] In some embodiments, a heat exchange membrane with an odd number among the multiple heat exchange membranes is provided with a first conductive gap at a first position, and the shape of the first conductive gap corresponds to the shape of the first conductive column, and the first conductive column penetrates the first conductive gap to be electrically connected to the heat exchange membrane with an odd number among the multiple heat exchange membranes; a heat exchange membrane with an even number among the multiple heat exchange membranes is provided with a second conductive gap at a second position, and the shape of the second conductive gap corresponds to the shape of the second conductive column, and the second conductive column penetrates the second conductive gap to be electrically connected to the heat exchange membrane with an even number among the multiple heat exchange membranes.

[0012] In some embodiments, the heat exchange membranes with odd numbers among the multiple heat exchange membranes are provided with a first avoidance gap at the second position, and the second conductive column does not contact the heat exchange membranes with odd numbers among the multiple heat exchange membranes when passing through the second avoidance gap; the heat exchange membranes with even numbers among the multiple heat exchange membranes are provided with a second avoidance gap at the first position, and the first conductive column does not contact the heat exchange membranes with even numbers among the multiple heat exchange membranes when passing through the first avoidance gap.

[0013] In some embodiments, a corner of an odd-numbered heat exchange membrane among the plurality of heat exchange membranes is cut off to form the first avoidance gap.

[0014] In some embodiments, a corner of the heat exchange membrane with an even number among the plurality of heat exchange membranes is cut off to form the second avoidance gap.

[0015] In some embodiments, the heat exchange membrane includes a substrate and a conductive coating, wherein the substrate is made of polyethylene; and the conductive coating is coated on the substrate.

[0016] In some embodiments, the full heat exchange core also includes multiple support structures, which are arranged one by one between each two adjacent heat exchange membranes among the multiple heat exchange membranes, and the multiple support structures are used to maintain a preset distance between each two adjacent heat exchange membranes among the multiple heat exchange membranes.

[0017] In some embodiments, the support structure includes a support frame and a support assembly, wherein the heat exchange membrane is attached to the upper and lower surfaces of the support frame to form a heat exchange unit; the support assembly is arranged between adjacent heat exchange units.

[0018] In some embodiments, the distance between each two adjacent layers of the multiple heat exchange membranes is d, the voltage between the first electrode and the second electrode is u, and the voltage and the distance have the following functional relationship: u=k*d, wherein k is greater than or equal to 400V / mm and less than or equal to 600V / mm.

[0019] In some embodiments, the fresh air fan includes the above-mentioned full heat exchange core.

[0020] The full heat exchange core machine and the fresh air blower provided in the embodiments of the present disclosure can achieve the following technical effects:

[0021] By using the full heat exchange core provided in the embodiment of the present disclosure, a high-voltage direct current electric field is formed by utilizing a heat exchange membrane to realize electrostatic dust removal and sterilization. Compared with the form of setting a high-efficiency filter and an electrostatic dust removal module, the volume of the full heat exchange core is reduced, and the wind resistance of the full heat exchange core is reduced, so that the fresh air fan can achieve better air purification effect with a smaller volume.

[0022] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0024] Figure 1 is a schematic structural diagram of a full heat exchange core provided by an embodiment of the present disclosure;

[0025] Figure 2 is an exploded schematic diagram of a partial structure of a full heat exchange core provided by an embodiment of the present disclosure;

[0026] Figure 3 It is a schematic structural diagram of a support frame of a full heat exchange core provided by an embodiment of the present disclosure;

[0027] Figure 4It is a partially enlarged schematic diagram of a support frame of a full heat exchange core provided by an embodiment of the present disclosure;

[0028] Figure 5 is a schematic structural diagram of another full heat exchange core provided by an embodiment of the present disclosure;

[0029] Figure 6 is an exploded schematic diagram of a partial structure of another full heat exchange core provided by an embodiment of the present disclosure;

[0030] Figure 7 It is a partially enlarged schematic diagram of the cooperation between a heat exchange unit of a full heat exchange core and a support assembly provided by an embodiment of the present disclosure;

[0031] Figure 8 It is a schematic structural diagram of a full heat exchange core provided by an embodiment of the present disclosure after removing the heat exchange unit.

[0032] Reference numerals:

[0033] 100: heat exchange unit; 110: support frame; 111: first side plate; 112: second side plate; 113: first connecting bar; 114: second connecting bar; 120: support assembly; 121: first support member; 122: second support member; 123: third support member; 130: heat exchange membrane; 131: first heat exchange membrane; 132: second heat exchange membrane; 133: first conductive notch; 134: second conductive notch; 210: first conductive column; 220: second conductive column; 310: top plate; 320: bottom plate; 330: side frame. DETAILED DESCRIPTION

[0034] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0035] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0037] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] Unless otherwise stated, the term "plurality" means two or more.

[0039] 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 indicates: A or B.

[0040] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0042] Combination Figure 1-8 As shown, an embodiment of the present disclosure provides a full heat exchange core, including multiple heat exchange membranes 130, which are stacked and an air flow channel is formed between every two adjacent heat exchange membranes 130. The multiple heat exchange membranes 130 form a multi-layer air flow channel, and the air flow channels with odd numbers in the multi-layer air flow channel are connected in a first direction, and the air flow channels with even numbers are connected in a second direction. The heat exchange membranes with odd numbers in the multiple heat exchange membranes 130 are connected to the first electrode, and the heat exchange membranes 130 with even numbers are connected to the second electrode.

[0043] In the embodiment of the present disclosure, the full heat exchange core includes a plurality of heat exchange membranes 130, and the heat exchange membranes 130 are used for heat exchange and water exchange. The plurality of heat exchange membranes 130 are stacked, and a support structure is provided between two adjacent heat exchange membranes 130 to maintain a preset distance to form an interlayer, and the support structure defines an airflow channel in the interlayer. If the number of heat exchange membranes 130 is n, then the number of airflow channels is n-1 layers. For ease of understanding, the embodiment of the present disclosure is described by taking the plurality of heat exchange membranes 130 as an example of being numbered sequentially from top to bottom, and the multi-layer airflow channels are also numbered sequentially from top to bottom. The airflow channels with odd serial numbers in the multi-layer airflow channels are the first airflow channels, and the airflow channels with even serial numbers in the multi-layer airflow channels are the second airflow channels. The first airflow channel conducts in the first direction, and the second airflow channel conducts in the second direction. The first direction is a direction different from the second direction, and the air inlet in the first direction is staggered with the air inlet in the second direction, and the air outlet in the first direction is staggered with the air outlet in the second direction.

[0044] Exemplarily, the heat exchange membrane 130 is rectangular, and a plurality of heat exchange membranes 130 are stacked to form a heat exchange membrane group. The heat exchange membrane assembly is a cube, having four sides, which are the first side, the second side, the third side and the fourth side in sequence. The first side is opposite to the third side, and the second side is opposite to the fourth side. The first direction is from the first side to the third side, and the second direction is from the second side to the fourth side. In this way, the air inlets of the multiple first air flow channels are located on the same side, and the air inlets of the multiple second air flow channels are located on the same side. When installing the full heat exchange core, the first side corresponds to the first air inlet of the fresh air fan, the second side corresponds to the second air inlet of the fresh air fan, the third side corresponds to the first air outlet of the fresh air fan, and the fourth side corresponds to the second air outlet of the fresh air fan. The air entering the fresh air fan from the first air inlet flows through the multiple first air flow channels and is discharged from the first air outlet; the air entering the fresh air fan from the second air inlet flows through the multiple second air flow channels and is discharged from the second air outlet. The air flowing through the first air flow channel and the air flowing through the second air flow channel exchange moisture and heat through the heat exchange membrane.

[0045] The heat exchange membranes with odd serial numbers in the plurality of heat exchange membranes 130 are first heat exchange membranes 131, and the heat exchange membranes with even serial numbers are second heat exchange membranes 132. The heat exchange membranes are conductive, and the first heat exchange membranes 131 are all connected to the first electrode, and the second heat exchange membranes 132 are all connected to the second electrode. The first electrode and the second electrode are opposite electrodes, and are used to form a high-voltage direct current electric field between a pair of adjacent first heat exchange membranes 131 and second heat exchange membranes 132.

[0046] When air flows through the high-voltage DC electric field, it is ionized to generate a large number of electrons and ions, which move toward the two poles of the high-voltage DC electric field under the action of the electric field force. During the movement, the electrons and ions encounter dust particles in the air, causing them to carry corresponding charges. Under the action of the electric field force, the charged dust particles move toward the two poles of the high-voltage DC electric field, and are adsorbed on the surfaces of the first heat exchange membrane 131 and the second heat exchange membrane 132. The flowing electrons and ions will form a corona current, which can break through the cell wall composed of proteins, thereby killing bacteria in the air.

[0047] By using the full heat exchange core provided in the embodiment of the present disclosure, a high-voltage direct current electric field is formed by utilizing a heat exchange membrane to realize electrostatic dust removal and sterilization. Compared with the form of setting a high-efficiency filter and an electrostatic dust removal module, the volume of the full heat exchange core is reduced, the wind resistance of the full heat exchange core is reduced, and the air purification effect of the full heat exchange core is improved.

[0048] Optionally, the full heat exchange core further includes a first conductive column 210 and a second conductive column 220 , wherein the first conductive column 210 is electrically connected to the heat exchange membranes with odd numbers among the multiple heat exchange membranes 130 ; the second conductive column 220 is electrically connected to the heat exchange membranes with even numbers among the multiple heat exchange membranes 130 .

[0049] The first conductive column 210 is connected to the first electrode, and the second conductive column 220 is connected to the second electrode. The first electrode is one of the positive electrode and the negative electrode, and the second electrode is the other of the positive electrode and the negative electrode. The first conductive column 210 is columnar, and the axis is along the thickness direction of the multiple heat exchange membranes 130. The second conductive column 220 is columnar, and the axis is along the thickness direction of the multiple heat exchange membranes 130. The first conductive column 210 is electrically connected to the heat exchange membranes with odd serial numbers among the multiple heat exchange membranes 130, that is, it is electrically connected to the multiple first heat exchange membranes 131. The second conductive column 220 is electrically connected to the heat exchange membranes with even serial numbers among the multiple heat exchange membranes 130, that is, it is electrically connected to the multiple second heat exchange membranes 132. The first heat exchange membrane 131 and the second heat exchange membrane 132 are alternately arranged, and a DC electric field is formed between adjacent heat exchange membranes 130. The first conductive pillar 210 and the second conductive pillar 220 are provided, so that the plurality of first heat exchange membranes 131 can be conveniently connected to the first electrode, and the plurality of second heat exchange membranes 132 can be conveniently connected to the second electrode.

[0050] Optionally, a heat exchange membrane with an odd number among the multiple heat exchange membranes 130 is provided with a first conductive gap 133 at a first position, and the shape of the first conductive gap 133 corresponds to the shape of the first conductive column 210. The first conductive column 210 penetrates the first conductive gap 133 to be electrically connected to the heat exchange membrane with an odd number among the multiple heat exchange membranes 130; a heat exchange membrane with an even number among the multiple heat exchange membranes 130 is provided with a second conductive gap 134 at a second position, and the shape of the second conductive gap 134 corresponds to the shape of the second conductive column 220. The second conductive column 220 penetrates the second conductive gap 134 to be electrically connected to the heat exchange membrane with an even number among the multiple heat exchange membranes 130.

[0051] The first conductive notch 133 is used to connect the plurality of first heat exchange membranes 131 to the first electrode. The plurality of first heat exchange membranes 131 are provided with the first conductive notch 133 at the first position, and the heat exchange membrane group is provided with a first through hole at the first position, and the first conductive column 210 is inserted into the first through hole. The cross section of the first conductive column 210 corresponds to the shape of the first conductive notch 133, and the first conductive column 210 contacts the inner circle of the first conductive notch 133 so that the first heat exchange membrane 131 is connected to the first conductive column 210.

[0052] The second conductive notch 134 is used to connect the plurality of second heat exchange membranes 132 to the second electrode. The plurality of second heat exchange membranes 132 are provided with the second conductive notch 134 at the second position, and the heat exchange membrane group is provided with a second through hole at the second position, and the second conductive column 220 is inserted into the second through hole. The cross section of the second conductive column 220 corresponds to the shape of the second conductive notch 134, and the second conductive column 220 contacts the inner circle of the second conductive notch 134 so that the second heat exchange membrane 132 is connected to the second conductive column 220.

[0053] This arrangement simplifies the connection structure between the heat exchange membrane 130 and the first conductive column 210 and the second conductive column 220, and multiple first conductive membranes can be connected to the first electrode and multiple second conductive membranes can be connected to the second electrode without additional auxiliary facilities.

[0054] Optionally, the heat exchange membranes with odd numbers among the multiple heat exchange membranes 130 are provided with a first extension portion extending outward, and the first conductive notch 133 is opened in the first extension portion; the heat exchange membranes with even numbers among the multiple heat exchange membranes 130 are provided with a second extension portion extending outward, and the second conductive notch 134 is opened in the second extension portion.

[0055] Exemplarily, a plurality of first heat exchange membranes 131 are provided with a first extension extending outward from the first side of the heat exchange membrane group, and a plurality of second heat exchange membranes 132 are provided with a second extension extending outward from the second side of the heat exchange membrane group. When the first conductive column 210 penetrates through a plurality of first conductive notches 133 to be electrically connected to the plurality of first heat exchange membranes 131, it will not contact the plurality of second heat exchange membranes 132; when the second conductive column 220 penetrates through a plurality of second conductive notches 134 to be electrically connected to the plurality of second heat exchange membranes 132, it will not contact the plurality of first heat exchange membranes 131. Such a setting form can avoid local short circuit of the full heat exchange core during operation, and improve the safety of the operation of the full heat exchange core.

[0056] Optionally, a heat exchange membrane with an odd number among the multiple heat exchange membranes 130 is provided with a first avoidance gap at the second position, and the second conductive column 220 does not contact the heat exchange membrane with an odd number among the multiple heat exchange membranes 130 when passing through the second avoidance gap; a heat exchange membrane with an even number among the multiple heat exchange membranes 130 is provided with a second avoidance gap at the first position, and the first conductive column 210 does not contact the heat exchange membrane with an even number among the multiple heat exchange membranes 130 when passing through the first avoidance gap.

[0057] The first heat exchange membranes 131 are provided with first conductive notches 133 at the first position, and the second heat exchange membranes 132 are provided with second avoidance notches at the first position. The first conductive notches 133 and the second avoidance notches overlap in the vertical direction. The first conductive column 210 penetrates the first conductive notches 133 and the second avoidance notches, contacts the inner circle of the first conductive notches 133 to be electrically connected to the first heat exchange membranes 131, and does not contact the inner circle of the second avoidance notches to avoid local short circuit.

[0058] The second heat exchange membranes 132 are provided with second conductive notches 134 at the second position, and the first heat exchange membranes 131 are provided with first avoidance notches at the second position. The second conductive notches 134 and the first avoidance notches overlap in the vertical direction. The second conductive column 220 penetrates the second conductive notches 134 and the first avoidance notches, contacts the inner circle of the second conductive notches 134 to be electrically connected to the second heat exchange membranes 132, and does not contact the inner circle of the first avoidance notches to avoid local short circuit.

[0059] With such a setting, the opening positions of the first conductive notch 133 and the second conductive notch 134 are not restricted, and the full heat exchange core can still maintain its original shape after having the electrostatic dust removal function, and can be adapted to a variety of different fresh air fans, which is convenient for users.

[0060] Optionally, a corner of the odd-numbered heat exchange membranes 130 is cut off to form a first avoidance gap.

[0061] The second position is located at the first corner of the heat exchange membrane. The second heat exchange membrane 132 is provided with a second conductive notch 134 at a first angle, and the first corner of the first heat exchange membrane 131 is cut off to form a first avoidance notch. When the second conductive column 220 passes through the second conductive notch 134 provided in the plurality of second heat exchange membranes 132, it does not contact the first heat exchange membrane 131. With such a setting, local short circuit of the full heat exchange core can be effectively avoided, and the commercial safety of the full heat exchange core can be improved. In addition, with such a setting, the second conductive column 220 is located at the edge of the heat exchange membrane group, which has little effect on the flow of air in the first airflow channel and the second airflow channel, and can reduce the air resistance of the full heat exchange core.

[0062] Optionally, a corner of the heat exchange membrane with an even number among the plurality of heat exchange membranes 130 is cut off to form a second avoidance gap.

[0063] The first position is located at the second corner of the heat exchange membrane, the first heat exchange membrane 131 is provided with a first conductive notch 133 at the second angle, and the second corner of the second heat exchange membrane 132 is cut off to form a second avoidance notch. When the first conductive column 210 passes through the first conductive notch 133 provided in the plurality of first heat exchange membranes 131, it does not contact the second heat exchange membrane 132. With such a setting, local short circuit of the full heat exchange core can be effectively avoided, and the commercial safety of the full heat exchange core can be improved. In addition, with such a setting, the first conductive column 210 is located at the edge of the heat exchange membrane group, which has little effect on the flow of air in the second air flow channel and the first air flow channel, and can reduce the air resistance of the full heat exchange core.

[0064] Optionally, the heat exchange membrane 130 includes a substrate and a conductive coating, wherein the substrate is made of polyethylene; and the conductive coating is coated on the substrate.

[0065] The material of the substrate of the heat exchange membrane 130 is polyethylene, which can make the heat exchange membrane 130 have certain structural strength and toughness. The metal conductive coating is applied to the polyethylene substrate, which can make the heat exchange membrane 130 conductive so that it has the same potential as the electrode when connected to the electrode. The conductive coating can be a conductive tape or a metal conductive layer. Exemplarily, the metal conductive layer can be formed by vapor deposition.

[0066] Optionally, the full heat exchange core also includes multiple support structures, which are arranged one by one between each adjacent two heat exchange membranes 130 in the multiple heat exchange membranes 130, and the multiple support structures are used to maintain a preset distance between each adjacent two heat exchange membranes 130 in the multiple heat exchange membranes 130.

[0067] The support structure is used to keep two adjacent heat exchange membranes 130 at a preset distance, so that the two adjacent heat exchange membranes 130 form a sandwich. The support structure also defines an air flow channel in the sandwich. The support structure can make multiple heat exchange membranes 130 become one when stacked and have a certain structural strength.

[0068] Optionally, the support structure includes a support frame 110 and a support assembly 120, wherein the support frame 110 has heat exchange membranes 130 attached to the upper and lower surfaces to form a heat exchange unit 100; and the support assembly 120 is disposed between adjacent heat exchange units.

[0069] In the disclosed embodiment, the full heat exchange core includes a plurality of heat exchange units 100, each heat exchange unit 100 includes two heat exchange membranes 130 and a support frame 110 for supporting the two heat exchange membranes 130. The two heat exchange membranes 130 are respectively a first heat exchange membrane 131 and a second heat exchange membrane 132, the first heat exchange membrane 131 is bonded to the first surface of the support frame 110, and the second heat exchange membrane 132 is bonded to the second surface of the support frame 110. The support frame 110 makes the first heat exchange membrane 131 and the second heat exchange membrane 132 have a preset distance, and a first interlayer is formed between the first heat exchange membrane 131 and the second heat exchange membrane 132. The support frame 110 also defines a first air flow channel in the first interlayer. In the assembly process of the full heat exchange core, the heat exchange unit 100 is used as a standard part. A plurality of heat exchange units 100 are stacked, and the support assembly 120 is arranged between two adjacent heat exchange units 100, and a second interlayer is formed between the two adjacent heat exchange units 100. The support assembly 120 defines a second airflow channel in the second interlayer. The cross-sectional area of ​​the support assembly 120 in the second airflow channel along the air flow direction is smaller than the cross-sectional area of ​​the support frame 110 in the first airflow channel along the air flow direction. In the full heat exchange core, part of the air flows through the first airflow channel, and part of the air flows through the second airflow channel. The air flowing through the first airflow channel and the air flowing through the second airflow channel exchange heat and water vapor through the heat exchange membrane they share.

[0070] The full heat exchange core provided by the embodiment of the present disclosure is used, and the heat exchange unit 100 is used as a standard part. The interior of the heat exchange unit 100 is a first air flow channel. Multiple heat exchange units 100 are stacked and a support assembly 120 is provided between adjacent heat exchange units 100. A second air flow channel is provided between adjacent heat exchange units 100, which facilitates the assembly of the full heat exchange core; a support assembly 120 is provided between adjacent heat exchange units 100 to form a second air flow channel. The cross-section of the support assembly 120 along the air flow direction in the second air flow channel is smaller, which can reduce air resistance, thereby increasing the air output of the full heat exchange core.

[0071] Optionally, the support assembly 120 includes a first support member 121 and a second support member 122 , wherein the first support member 121 is disposed at the first end of the second interlayer; the second support member 122 is disposed at the second end of the second interlayer and opposite to the first support member 121 .

[0072] Taking the heat exchange membrane 130 as a rectangle as an example, the heat exchange unit 100 is also the same rectangle. A plurality of heat exchange units 100 are stacked up and down to form a heat exchange membrane group, and the heat exchange membrane group has four sides, which are the first side, the second side, the third side and the fourth side in sequence. The first side is opposite to the third side, and the second side is opposite to the fourth side. The air inlet of the first air flow channel in the heat exchange unit 100 is located on the first side, and the air outlet is located on the third side; the air inlet of the first air flow channel between the heat exchange units 100 is located on the second side, and the air outlet is located on the fourth side. The first support member 121 is close to the first side, and the second support member 122 is close to the second side. The first support member 121 and the second support member 122 form a second air flow channel in the second interlayer. The second air flow channel is perpendicular to the first air flow channel. The first support member 121 is located at the edge of the second interlayer, and the second support member 122 is also located at the edge of the second interlayer, so that the space of the second interlayer can be fully utilized to form a second air flow channel with a larger conduction cross-section. The two heat exchange membranes 130 of the heat exchange unit 100 are bonded to the support frame 110 and have a certain strength. The first support member 121 and the second support member 122 play a supporting role in the structure, and the overall structure of the full heat exchange core is relatively stable.

[0073] Optionally, the air inlet end of the first air flow channel is located on the first side of the heat exchange unit 100, and the air inlet end of the second air flow channel is located on the second side of the heat exchange unit 100, and the first side is adjacent to the second side; wherein, the outward side of the first support member 121 protrudes outward to form a first inlet portion, and the first inlet portion is used to introduce air into the first air flow channel.

[0074] The heat exchange unit 100 is a rectangular parallelepiped, and the outer surfaces of the two heat exchange membranes 130 of the heat exchange unit 100 are the top surface and the bottom surface of the rectangular parallelepiped respectively. The air inlet end of the first air flow channel is located at the first side surface of the heat exchange unit 100, that is, at the first side surface of the heat exchange membrane group. The air inlet end of the second air flow channel is located at the second side surface of the heat exchange unit 100, that is, at the second side surface of the heat exchange membrane group. The first side surface is adjacent to the second side surface. The first support member 121 is located in the second interlayer and close to the first side edge of the heat exchange unit 100, and the second support member 122 is located in the second interlayer and close to the second side edge of the heat exchange unit 100. From the outside of the full heat exchange core, the first support member 121 is located above the first air inlet, and the second support member 122 is located above the first air outlet. The first side edge of the heat exchange membrane group corresponds to the first air inlet of the fresh air fan, and the second side edge corresponds to the second air inlet of the fresh air fan. The first support member 121 isolates the connection of the first air inlet of the second interlayer, that is, the outward side of the first support member 121 blocks the air from entering the second interlayer from the first side of the heat exchange membrane group. The outward side of the first support member 121 bulges outward to form a first introduction part, and the first introduction part has an inclined slope. The air blowing from the first air inlet of the fresh air fan to the first side of the heat exchange membrane group enters the first air flow channel along the inclined slope of the first introduction part. With such a setting, the turbulence formed when the air blows from the first side to the first support member 121 can be reduced, and the wind resistance of the air entering multiple first air flow channels can be reduced. Further, the wind resistance of the full heat exchange core can be reduced, thereby increasing the fresh air volume of the fresh air fan.

[0075] Optionally, the cross section of the first introduction portion is V-shaped.

[0076] When the air blows toward the outward side of the first support member 121, the air is divided into two parts by the top edge of the V-shaped introduction portion near the first support member 121, and the two parts respectively enter the two heat exchange units 100 adjacent to the first support member 121 along the two slopes of the V-shaped introduction portion. With such a configuration, the first introduction portion can achieve a better flow guiding effect.

[0077] Optionally, the first side plate 111 protrudes outward to form a second introduction portion, and the second introduction portion is used to introduce air into the second air flow channel.

[0078] The outward side of the first side plate 111 is located on the second side of the heat exchange unit 100, that is, the second side of the heat exchange membrane group. When the second air inlet of the fresh air fan enters the second air flow channel, the first side plate 111 isolates the communication between the first interlayer and the second air inlet, that is, the outward side of the first side plate 111 blocks the air from entering the first interlayer from the second side of the heat exchange membrane group. When the air blows toward the first side plate 111, turbulence will be formed, so that the kinetic energy of the air is converted into friction internal energy, affecting the air volume entering the second air flow channel in the second interlayer. The outward side of the first side plate 111 bulges outward to form a second introduction part, and the second introduction part has an inclined slope. The air blowing from the second air inlet of the fresh air fan to the first side plate 111 of the heat exchange membrane group enters the second air flow channel along the inclined slope of the second introduction part. With such a setting form, the turbulence formed when the air blows from the second side to the first side plate 111 can be reduced, and the wind resistance when the air enters multiple second air flow channels can be reduced. Further, the wind resistance of the full heat exchange core can be reduced, thereby increasing the fresh air volume of the fresh air fan.

[0079] Optionally, the cross section of the second introduction portion is V-shaped.

[0080] When the air blows toward the outward side of the first side plate 111, the air is divided into two parts by the top edge of the V-shaped introduction part near the first side plate 111, and the two parts respectively enter the two air flow channels adjacent to the first side plate 111 along the two slopes of the V-shaped introduction part. With such a configuration, the first side plate can achieve a better air guide effect.

[0081] Optionally, the support assembly 120 further includes a third support member 123 , and the third support member 123 is located between the first support member 121 and the second support member 122 .

[0082] A third support member 123 is arranged between the first support member 121 and the second support member 122. When the span between the first support member 121 and the second support member 122 is relatively large, the third support member 123 supports two adjacent heat exchange units 100 in the middle, thereby preventing the heat exchange units 100 from deforming. Such an arrangement can effectively improve the structural strength of the full heat exchange core.

[0083] Optionally, one end of the third support member 123 is connected to the first support member 121 , and the other end is connected to the second support member 122 , and a plurality of air flow channels are configured in the third support member 123 .

[0084] As an implementation scenario, the first support member 121 is parallel to the second support member 122, and the third support member 123 is perpendicular to the first support member 121 and the second support member 122. The third support member 123 is provided with a plurality of airflow channels in a direction parallel to the first support member 121 or the second support member 122. In this way, the first support member 121, the second support member 122 and the third support member 123 are integrated, which can not only simplify the assembly procedure of the full heat exchange core, but also facilitate the positioning of the support assembly 120 during installation. The third support member 123 is provided with a plurality of airflow channels, which will not affect the passage of air.

[0085] Optionally, at least one of the first support member 121 , the second support member 122 and the third support member 123 is configured with an air flow channel along the air flow direction.

[0086] The portion between the first support member 121 and the second support member 122 belongs to the second airflow channel, and the airflow channels inside the first support member 121, the second support member 122 and the third support member 123 also belong to the second airflow channel. With such a configuration, the influence of the support assembly 120 on the size of the conduction cross-sectional area of ​​the second airflow channel can be further reduced, the space in the interlayer can be fully utilized, the air passing efficiency in the second airflow channel can be improved, and further, the fresh air volume of the fresh air fan can be increased.

[0087] Optionally, the support frame 110 further includes a first connecting bar 113, which is used to connect the first side panel 111 and the second side panel 112, and the first connecting bar 113 is provided with a connecting hole; there are multiple first connecting bars 113, and the multiple first connecting bars 113 are arranged at intervals.

[0088] The first side plate 111 and the second side plate 112 of the support skeleton 110 are used to support the heat exchange membrane 130 bonded to the support skeleton 110 and block the two ends of the first interlayer to form a first airflow channel. By connecting the first side plate 111 and the second side plate 112 by the first connecting bar 113, the support skeleton 110 can be used as a whole, reducing the difficulty of assembling the heat exchange unit 100 itself. The first connecting bar 113 is provided with a plurality of connecting holes, which can reduce the influence of the first connecting bar 113 itself on the size of the conductive cross-sectional area of ​​the first airflow channel. The provision of a plurality of first connecting bars 113 can improve the structural strength of the support skeleton 110, and further improve the structural strength of the heat exchange unit 100. The heat exchange unit 100 itself has a strong structural strength, which is conducive to the formation of a second airflow channel between adjacent heat exchange units 100 through the support assembly 120, thereby ensuring the overall structural strength of the full heat exchange core.

[0089] Optionally, the support frame 110 further includes a second connecting bar 114, and the second connecting bar 114 is used to connect two adjacent first connecting bars 113; wherein, there are multiple second connecting bars 114, and the multiple second connecting bars 114 are arranged at intervals.

[0090] The plurality of second connecting strips 114 can further improve the structural strength of the support frame 110. The length direction of the second connecting strips 114 is generally along the air flow direction. The second connecting strips 114 are provided to facilitate orderly air flow, thereby reducing the wind resistance in the heat exchange unit 100 and increasing the air volume of the fresh air fan.

[0091] Optionally, the second connecting bar 114 is arranged obliquely, and a connecting hole is opened in the second connecting bar 114 .

[0092] The second connecting strip 114 is tilted to form a certain angle with the side plate in the length direction of the second connecting strip 114, and the acute angle of the angle is between 10° and 30°. When the air flows through the first air flow channel, it needs to flow through a certain number of connecting holes, so that the air can form vortices at the multiple second connecting holes. In this way, the temperature and water vapor of the air in the second air flow channel can be better transferred to the heat exchange membrane 130 of the heat exchange unit 100, thereby improving the heat exchange efficiency and water vapor exchange effect of the full heat exchange core.

[0093] Optionally, the distance between each two adjacent layers of the plurality of heat exchange membranes 130 is d, and the voltage between the first electrode and the second electrode is u, then u=k*d, k is greater than or equal to 400 V / mm and less than or equal to 600 V / mm.

[0094] The greater the voltage, the stronger the ionization ability of the air between adjacent layers of heat exchange membranes 130. If the voltage is too high, the heat exchange membrane 130 may be broken down by an arc. When k is between 400V / mm and 600V / mm, the full heat exchange core can have a better electrostatic dust removal effect and avoid the heat exchange membrane 130 being broken down due to excessive voltage.

[0095] Optionally, the full heat exchange core also includes a bottom plate 320, a top plate 310 and a side frame 330, wherein the first end of the side frame 330 is connected to the top plate 310, and the second end is connected to the bottom plate 320, the top plate 310, the bottom plate 320 and the side frame 330 enclose a containing space, and a plurality of heat exchange membranes 130 are arranged in the containing space.

[0096] The top plate 310 and the bottom plate 320 are used to protect the heat exchange membrane 130 of the heat exchange unit 100. The top plate 310 and the bottom plate 320 connected by the side frame 330 make the full heat exchange core as a whole, which is convenient for installation on the fresh air fan or removal from the fresh air fan.

[0097] The disclosed embodiment also provides a new air blower, comprising the above-mentioned full heat exchange core.

[0098] By using the fresh air fan provided by the embodiment of the present disclosure, a high-voltage direct current electric field is formed by utilizing the heat exchange membrane of the full heat exchange core to realize electrostatic dust removal and sterilization, thereby reducing the volume of the fresh air fan and improving the air purification effect of the fresh air fan.

[0099] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying 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

1. A full heat exchange core, characterized in that: include: A plurality of heat exchange membranes are stacked, and an air flow channel is formed between each two adjacent heat exchange membranes. The plurality of heat exchange membranes form a multi-layer air flow channel, and the air flow channels with odd numbers in the multi-layer air flow channel are connected in a first direction, and the air flow channels with even numbers are connected in a second direction; The heat exchange membranes with odd numbers among the plurality of heat exchange membranes are connected to the first electrode, and the heat exchange membranes with even numbers are connected to the second electrode; Among them, the heat exchange membranes with odd numbers among the plurality of heat exchange membranes are provided with a first conductive notch at the first position and a first avoidance notch at the second position; the heat exchange membranes with even numbers among the plurality of heat exchange membranes are provided with a second conductive notch at the second position and a second avoidance notch at the first position; the full heat exchange core also includes: a first conductive column, electrically connected to the odd-numbered heat exchange membranes among the plurality of heat exchange membranes; the first conductive column passes through the first conductive notch to be electrically connected to the odd-numbered heat exchange membranes among the plurality of heat exchange membranes; the first conductive column does not contact the even-numbered heat exchange membranes among the plurality of heat exchange membranes when passing through the first avoidance notch; A second conductive column is electrically connected to the heat exchange membranes with even numbers among the multiple heat exchange membranes. The second conductive column passes through the second conductive notch to be electrically connected to the heat exchange membranes with even numbers among the multiple heat exchange membranes. When the second conductive column passes through the second avoidance notch, it does not contact the heat exchange membranes with odd numbers among the multiple heat exchange membranes.

2. The total heat exchange core according to claim 1, characterized in that: The shape of the first conductive notch corresponds to the shape of the first conductive column.

3. The total heat exchange core according to claim 1, characterized in that: The shape of the second conductive notch corresponds to the shape of the second conductive column.

4. The total heat exchange core according to claim 1, characterized in that: A corner of the odd-numbered heat exchange membranes among the plurality of heat exchange membranes is cut off to form the first avoidance gap; and / or, A corner of the heat exchange membrane with an even number among the plurality of heat exchange membranes is cut off to form the second avoidance gap.

5. The total heat exchange core according to claim 1, characterized in that: The heat exchange membrane comprises: Base body, made of polyethylene; A conductive coating is applied to the substrate.

6. The total heat exchange core according to any one of claims 1 to 5, characterized in that: Also includes: A plurality of support structures are disposed one by one between each two adjacent heat exchange membranes among the plurality of heat exchange membranes, and the plurality of support structures are used to maintain a preset distance between each two adjacent heat exchange membranes among the plurality of heat exchange membranes.

7. The total heat exchange core according to claim 6, characterized in that: The support structure comprises: A support frame, the upper surface and the lower surface of which are both pasted with the heat exchange membrane to form a heat exchange unit; The supporting assembly is arranged between adjacent changing units.

8. The total heat exchange core according to any one of claims 1 to 5, characterized in that: The distance between each two adjacent layers of the multiple heat exchange membranes is d, the voltage between the first electrode and the second electrode is u, and the voltage and the distance have the following functional relationship: u=k*d, wherein k is greater than or equal to 400V / mm and less than or equal to 600V / mm.

9. A new air blower, characterized in that: Comprising the full heat exchange core as described in any one of claims 1 to 8.

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