Heat exchanger

Abstract

The present invention relates to a heat exchanger and is an invention concerning a technology that minimizes energy loss through the exchange of heat and humidity between indoor air and outdoor air. Specifically, the main components include: a case (100) comprising an indoor inlet (110) and an indoor outlet (120) formed on one side, and an outdoor inlet (130) and an outdoor outlet (140) formed on the other side; a heat exchange element (200) formed inside the case (100) for heat exchange between air that crosses each other; and a filter unit (300) coupled to the outdoor inlet (130) to perform a filtering operation of the outside air flowing in from the front.

Description

Technology Field

[0001] The present invention relates to a heat exchanger and is an invention concerning a technology that minimizes energy loss through the exchange of heat and humidity between indoor air and outdoor air. Background Technology

[0002] Patent Document 1 comprises: a housing portion having an outdoor air intake for drawing in outdoor air and an indoor air exhaust for discharging indoor air on one side, and an indoor air intake for drawing in indoor air and an outdoor air exhaust for discharging outdoor air on the other side; a heat exchange portion provided inside the housing portion to facilitate heat exchange of the drawn-in air; a filter portion provided on one side of the heat exchange portion to filter foreign substances contained in the drawn-in and discharged air; a bypass portion provided inside the housing portion to induce an airflow so that indoor air drawn in through the indoor air intake can be discharged back into the room through the outdoor air exhaust; a first motor portion provided on the outdoor air exhaust side inside the housing portion to drive the drawn-in air to discharge it into the room; and a second motor portion provided on the indoor air exhaust side inside the housing portion to drive the drawn-in air to discharge it to the outside. The present invention provides a technology comprising a control unit that is provided at an appropriate location in the housing part, controls the operation of the heat exchange part, the motor part, and the bypass part respectively during the heat exchange mode and the air purification mode, and is capable of communicating with a communication terminal of a user or manager.

[0003] Patent Document 2 presents a technology comprising: a main body having an outdoor air intake space and an outdoor exhaust space formed on one side based on a heat exchange space, and an indoor air supply space and an indoor exhaust space formed on the other side; a heat exchange element coupled to the heat exchange space to connect the outdoor air intake space and the indoor air supply space and to connect the indoor exhaust space and the outdoor exhaust space; a supply fan coupled to the indoor air supply space; an exhaust fan coupled to the outdoor exhaust space; a first air purification filter coupled to the outdoor air intake space; a first ultraviolet lamp coupled to the indoor air supply space; and a first control unit for operating the supply fan and the exhaust fan.

[0004] Patent Document 3 comprises a main body housing in which a heat exchanger is installed internally to facilitate heat exchange as outside air and inside air pass through each other, an exhaust section in which an exhaust passage is formed for the outflow of inside air passing through the heat exchanger, and an inflow section in which an inflow passage is formed for the inflow of outside air passing through the heat exchanger, wherein the exhaust section is equipped with a first exhaust port for the inflow of indoor air and a second exhaust port for the discharge of the inflowed indoor air to the outside, and the air supply section is equipped with a first supply port for the inflow of outdoor air and a second supply port for the discharge of outdoor air to the indoor space, and a partition damper capable of opening and closing is installed on a partition plate between the first exhaust port and the second supply port; The present invention provides a technology comprising a cylindrical photocatalytic filter device that includes: a light source unit that is detachably attached to the outer side of the second air supply device, is arranged along the longitudinal direction in the inner center and irradiates light; a louver composed of a plurality of wings coated with a photocatalyst and arranged radially parallel to the light source unit with the light source unit as the center; and a cylindrical body into which a cylindrical filter unit, which purifies air and changes the direction of air movement, is inserted on the outer periphery of the louver.

[0005] Patent Document 4 presents a technology in which an element-type heat exchanger is embedded inside the main body of a heat exchanger, and an exhaust port and an inlet port are provided for the circulation of outside air and inside air, respectively, so that heat exchange of air is achieved through the heat exchanger by the intake and exhaust operation of a blower fan, and indoor ventilation is achieved by filtration of the filter. In this technology, a chamber capable of accommodating a filter unit and separating the filter unit is provided in the inlet port where outside air is introduced into the main body, and within the chamber, a first pressure sensor and a second pressure sensor are electrically connected to a control unit to measure the amount of airflow of the filter applied to the front and rear sides of the filter unit on both sides relative to the filter unit, and the first pressure sensor and the second pressure sensor are electrically connected to a control unit by a filter replacement level indicator and a buzzer that indicate the time for replacing the filter. Prior art literature

[0006] (Patent Document 0001) KR 10-2025-0146354 A (Publication Date: October 13, 2025)(Patent Document 0002) KR 10-2025-0035813 A (Publication Date: March 13, 2025)(Patent Document 0003) KR 10-2317253 B1 (Registration Date: October 19, 2021)(Patent Document 0004) KR 10-2025-0070266 A (Publication Date: May 20, 2025) The problem to be solved

[0007] The present invention relates to a heat exchanger, and aims to provide a technology that includes a unit in which any one selected from a pre-filter, a HEPA filter, an antibacterial filter, a deodorizing filter, and a dehumidifying filter is installed in a filter section that performs a filtering operation of outside air supplied to the heat exchanger, and allows at least two or more of the units selected by the user to be easily combined in the direction of outside air inflow. means of solving the problem

[0008] The present invention relates to a heat exchanger comprising: a case (100) formed on one side, an indoor inlet (110) and an indoor outlet (120), and on the other side, an outdoor inlet (130) and an outdoor outlet (140); a heat exchange element (200) formed inside the case (100) and capable of performing heat exchange between air that crosses each other; and a filter unit (300) coupled to the outdoor inlet (130) and capable of performing a filtering operation of outside air flowing in from the front.

[0009] The present invention relates to a heat exchanger, wherein the filter unit (300) comprises: a filter unit (310) comprising one or more selected from a pre-filter unit (311), a HEPA filter unit (312), an antibacterial filter unit (313), a deodorizing filter unit (314), and a dehumidifying filter unit (315); and a coupling means (320) for coupling two or more selected from the filter unit (310) in the direction of air flow.

[0010] The present invention relates to a heat exchanger, wherein the pre-filter unit (311) comprises: an external air blocking body (311-1) that opens and closes a certain front and rear area of ​​the installed pre-filter (10); an air supply body (311-2) that supplies air to the rear area of ​​the pre-filter (10); and an air discharge hole (311-3) through which air is discharged to the outside in the front area of ​​the pre-filter (10).

[0011] The present invention relates to a heat exchanger, wherein the dehumidifying filter unit (315) comprises: a circulation operating body (315-1) that fixes or circulates the dehumidifying filter (50) in an up-and-down direction; and a drying operating body (315-2) that supplies air to the circulating dehumidifying filter (50) to dry it. Effects of the invention

[0012] The present invention relates to a filter unit for filtering outside air flowing into a heat exchanger, which has the effect of allowing a user to easily attach a selected filter in the direction of outside air inflow. The present invention has the effect of facilitating the replacement and maintenance of the selected filter. By conveying the filter replacement time using a display method, an alarm method, or a method of transmitting to a user's terminal, the present invention enables the user to perform a rapid filter replacement operation. Since foreign substances attached to the front of the pre-filter can be easily separated and recovered, the present invention not only enables efficient filtering operation of the pre-filter but also has the effect of extending the lifespan of the pre-filter. The present invention has the effect of enabling regeneration operation even during the filtering operation of the dehumidification filter. Brief explanation of the drawing

[0013] FIG. 1 is a cross-sectional view of the heat exchanger of the present invention. FIG. 2 is another cross-sectional view of the heat exchanger of the present invention. FIG. 3 is a perspective view of the filter subunit of the present invention. FIG. 4 is another perspective view of the filter unit of the present invention. FIG. 5 is a perspective view of the coupling means of the present invention. FIG. 6 is another perspective view of the coupling means of the present invention. FIG. 7 is another perspective view of the coupling means of the present invention. FIG. 8 is a cross-sectional view of the pre-filter unit of the present invention. FIG. 9 is another cross-sectional view of the pre-filter unit of the present invention. FIG. 10 is a cross-sectional view of the dehumidification filter unit of the present invention. FIG. 11 is another cross-sectional view of the dehumidification filter unit of the present invention. Specific details for implementing the invention

[0014] Hereinafter, the most preferred embodiment of the present invention is described in detail to enable a person skilled in the art to easily practice the present invention. The reference numbers of the embodiments are not limited to designated numbers, and all numbers may be accepted. The configurations presented in the embodiments may be extended to objects that produce the same purpose and effect. Sub-concepts of the configurations presented in the embodiments may be deemed implied even if they are not explicitly stated.

[0015] (Example 1-1) The present invention relates to a heat exchanger comprising: a case (100) formed on one side, an indoor inlet (110) and an indoor outlet (120), and on the other side, an outdoor inlet (130) and an outdoor outlet (140); a heat exchange element (200) formed inside the case (100) and performing heat exchange between air that crosses each other; and a filter unit (300) coupled to the outdoor inlet (130) and performing a filtering operation of the outside air flowing in from the front.

[0016] (Example 1-2) The present invention relates to a heat exchanger, wherein in Example 1-1, the case (100) includes a partition wall (101) that partitions the air flow space.

[0017] (Example 1-3) The present invention relates to a heat exchanger, and in Example 1-1, includes a supply fan (410) formed on the side of the internal air inlet (110); and an exhaust fan (420) formed on the side of the external air outlet (140).

[0018] (Examples 1-4) The present invention relates to a heat exchanger, wherein in Example 1-1, the filter section (300) is formed outside the case (100).

[0019] The present invention relates to a heat exchanger comprising a case (100) through which air flows, a heat exchange element (200) that performs heat exchange between supply air and exhaust air flowing through the case (100), and a filter unit (300) that performs a filtering operation of incoming outside air.

[0020] The case (100) is formed in a shape that minimizes external influence on the heat and humidity exchange of air flowing inside and protects internal components, and is formed of a metal or polymer material.

[0021] The case (100) includes an indoor inlet (110) formed on one side through which air introduced from the outside and exchanged in the heat exchange element (200) flows into the indoor space, and an indoor outlet (120) through which air from the indoor space flows into the case (100). Additionally, the case (100) includes an outdoor inlet (130) formed on the other side through which air from the outside flows into the case (100), and an outdoor outlet (140) through which air from inside the case (100) flows outside.

[0022] Additionally, the case (100) includes a partition wall (101) that partitions the air flow space by means of an indoor inlet (110), an indoor outlet (120), an outdoor inlet (130), and an outdoor outlet (140).

[0023] In addition, the present invention generates forced air flow by including a supply fan (410) formed on the side of the indoor inlet (110) to draw in air from the outside and flow it into the case (100), and an exhaust fan (420) formed on the side of the outdoor exhaust port (140) to draw in air from the inside and flow it into the case (100).

[0024] The heat exchange element (200) has a plurality of plates stacked at regular intervals to form a supply air passage and an exhaust air passage, and heat exchange and humidity exchange occur between the air flowing through the supply air passage and the exhaust air passage. Through this, it is possible to achieve a higher heat transfer efficiency compared to the conventional method while minimizing the loss of heating and cooling energy.

[0025] The filter unit (300) is combined with the outdoor inlet (130) to perform a filtering operation of the outside air flowing in from the front. Through this, the filter unit (300) removes foreign substances, including fine dust, contained in the outside air, thereby ensuring that clean air is supplied to the indoor space. At this time, the filter unit (300) may be equipped with one or more filters selected from a pre-filter (10), a HEPA filter (20), an antibacterial filter (30), a deodorizing filter (40), and a dehumidifying filter (50), and at least one filter is installed depending on the location where the heat exchanger of the present invention is installed or the user's purpose.

[0026] In addition, the filter section (300) is formed on the outside of the case (100). This makes it easy to replace or regenerate the filter installed in the filter section (300) to perform filtering operations.

[0027] (Example 2-1) The present invention relates to a heat exchanger, wherein in Example 1-1, the filter unit (300) comprises a filter unit (310) composed of one or more selected from a pre-filter unit (311), a HEPA filter unit (312), an antibacterial filter unit (313), a deodorizing filter unit (314), and a dehumidifying filter unit (315); and a coupling means (320) for coupling two or more selected from the filter unit (310) in the direction of air flow.

[0028] (Example 2-2) The present invention relates to a heat exchanger, wherein in Example 2-1, the coupling means (320) comprises one or more selected from a binding means (321) for coupling the filter float unit (310) in a tie-binding manner, a magnetic means (322) for coupling using magnetic force, and a clamp means (323) for coupling using a clamp.

[0029] (Example 2-3) The present invention relates to a heat exchanger, wherein in Example 2-1, the filter unit (310) includes an information output means (310-1) for outputting information of an installed filter.

[0030] (Example 2-4) The present invention relates to a heat exchanger, wherein in Example 2-3, the filter unit (310) includes an information collection means (310-2) that measures information selected by the filter and supplies it to the information output means (310-1).

[0031] (Example 2-5) The present invention relates to a heat exchanger, and in Example 2-4, the information collection means (310-2) is formed by one or more selected from a sensor that measures the condition of an installed filter and a timer that measures the usage period of an installed filter.

[0032] (Example 2-6) The present invention relates to a heat exchanger, wherein in Example 2-5, the filter unit (310) includes a transceiver (310-3) that transmits information of the installed filter to a user's terminal.

[0033] (Example 2-7) The present invention relates to a heat exchanger, and in Example 2-6, the filter unit (310) includes an alarm device (310-4) that sounds an alarm of information about the installed filter.

[0034] The filter unit (300) of the present invention includes a filter unit (310) in which a selected filter is installed, and a coupling means (320) for coupling two or more selected filter units (310) in the direction of air flow. That is, the filter unit (300) of the present invention includes a filter unit (310) in which a selected filter is installed, and by coupling only the selected filter unit (310) in the direction of air flow, an efficient filtering operation is performed that meets the user's purpose.

[0035] The filter unit (310) is composed of a pre-filter unit (311) in which a pre-filter (10) is installed, a HEPA filter unit (312) in which a HEPA filter for filtering fine dust in the air is installed, an antibacterial filter unit (313) in which an antibacterial filter (30) for filtering fine dust in the air and inhibiting the growth of bacteria and mold is installed, a deodorizing filter unit (314) in which a deodorizing filter (40) for filtering various odors or harmful gases in the air is installed, and a dehumidifying filter unit (315) in which a dehumidifying filter (50) for absorbing moisture in the air is installed.

[0036] The combining means (320) combines two or more selected from the pre-filter unit (311), HEPA filter unit (312), antibacterial filter unit (313), deodorizing filter unit (314), and dehumidifying filter unit (315) to form a filter unit (300) selectively combined according to the user's selection and purpose of use.

[0037] The coupling means (320) includes one or more selected from a binding means (321) that combines the filter unit (310) in a tiling method, a magnetic means (322) that combines using magnetic force, and a clamp means (323) that combines using various clamps.

[0038] The binding means (321) can be formed by a wire and can be bound through a hole formed by penetrating the filter floating unit (310) in the direction of air flow, or can be bound by being supported by a separate fixing body that fixes the wire to the filter floating unit (310).

[0039] The magnetic means (322) is formed at the front and rear of the air flow direction of the filter unit (310), thereby forming a filter unit (300) to which the selected filter unit (310) is coupled through a coupling operation by magnetic force between them.

[0040] As described above, the present invention includes a filter unit (310) in which a single filter is installed, and by combining selected filter units (310) to form a filter unit (300), it has the effect of facilitating the replacement or maintenance of the filters installed in each filter unit (310). In addition, compared to the conventional technology of forming a casing of a certain space and installing a filter inside the formed casing, various sizes are formed by the selective combination of filter units (310), thereby allowing for efficient use of space.

[0041] The filter unit (310) of the present invention includes an information output means (310-1) that outputs information about an installed filter. The information output means (310-1) outputs information about a selected and installed filter, thereby enabling the user to perform efficient use and maintenance at an appropriate time. For example, the information output means (310-1) may output whether the filter unit (310) is operating, the usage period of the filter installed in the filter unit (310), a filter replacement signal, etc.

[0042] In addition, the filter unit (310) includes an information collection means (310-2) that measures selected information of the filter and supplies it to an information output means (310-1) to output it. The information collection means (310-2) is formed of one or more selected from a sensor that measures the state of the filter and a timer that measures the usage period of the installed filter. The sensor that measures the state of the filter measures whether the filter is deformed by external force or whether many foreign substances are attached to the filter, thereby enabling efficient operation of the filter, and outputs a signal for replacement or maintenance operation of the filter. The timer measures the time along with the installation of the filter and outputs the usage time according to the pre-entered characteristics of the filter, thereby enabling the replacement operation of the filter.

[0043] Additionally, the filter unit (310) includes a transceiver (310-3) that transmits information about the installed filter to the user's terminal. Even if the user cannot check the filter information through the information output means (310-1), the transceiver (310-3) transmits information regarding whether or not the filter replacement or maintenance operation is performed through the user's terminal, thereby enabling the user to perform a rapid filter replacement or maintenance operation.

[0044] Additionally, the filter unit (310) includes an alarm device (310-4) that sounds an alarm regarding the information of the installed filter. Even if the user cannot check the filter information through the information output means (310-1), the alarm device (310-4) sounds an alarm regarding whether or not the filter replacement or maintenance operation is necessary, thereby enabling the user to perform a quick filter replacement or maintenance operation.

[0045] (Example 3-1) The present invention relates to a heat exchanger, wherein in Example 2-1, the pre-filter unit (311) comprises: an external air blocking body (311-1) that opens and closes a certain front and rear area of ​​the installed pre-filter (10); an air supply body (311-2) that supplies air to the rear area of ​​the pre-filter (10); and an air discharge hole (311-3) through which air is discharged to the outside in the front area of ​​the pre-filter (10).

[0046] (Example 3-2) The present invention relates to a heat exchanger, wherein in Example 3-1, the external air blocking member (311-1) is formed to open and close in one or more ways selected from a rotational method and a sliding method.

[0047] (Example 3-3) The present invention relates to a heat exchanger, wherein in Example 3-1, the air discharge hole (311-3) is formed on the bottom surface.

[0048] (Example 3-4) The present invention relates to a heat exchanger, and in Example 3-3, the pre-filter unit (311) is formed such that the bottom surface of the front area has a certain slope in the direction of the air discharge hole (311-3).

[0049] (Example 3-5) The present invention relates to a heat exchanger, wherein in Example 3-3, the pre-filter unit (311) includes a hole opening / closing operating body (311-4) that opens / closes the air discharge hole (311-3).

[0050] (Example 3-6) The present invention relates to a heat exchanger, wherein in Example 3-4, the pre-filter unit (311) comprises: a foreign matter recovery channel (311-5) coupled to the air discharge hole (311-3) through which air and foreign matter move; and a foreign matter capture body (311-6) that captures foreign matter moved from the foreign matter recovery channel (311-5).

[0051] (Example 3-7) The present invention relates to a heat exchanger, wherein in Example 3-1, the pre-filter unit (311) includes a washing water sprayer (311-7) that sprays washing water onto an installed pre-filter (10).

[0052] (Example 3-8) The present invention relates to a heat exchanger, and in Example 3-7, the cleaning water sprayer (311-7) is sprayed in a manner selected from direct spraying and diffusion spraying.

[0053] The pre-filter unit (311) of the present invention includes an external air blocking body (311-1) that opens and closes a certain front and rear area of ​​the installed pre-filter (10), an air supply body (311-2) that supplies air to the rear area of ​​the pre-filter (10), and an air discharge hole (311-3) through which air is discharged to the outside in the front area of ​​the pre-filter (10).

[0054] The above-described configuration is a configuration for regeneration operation through the removal of foreign substances attached to the front of the pre-filter (10) installed in the pre-filter unit (311). It blocks the flow of outside air from the front to the rear of the pre-filter (10) using an outside air blocking body (311-1) and supplies air to the rear area of ​​the pre-filter (10) through an air supply body (311-2). Accordingly, due to the pressure difference caused by the air supplied to the rear area, air flows from the rear area of ​​the pre-filter (10) to the front area where the air discharge hole (311-3) is formed, and foreign substances including dust, insects, etc. attached to the front of the pre-filter (10) are detached from the pre-filter (10) by the flowing air. Through this, regeneration operation is performed by removing foreign substances from the pre-filter (10).

[0055] The outside air blocking unit (311-1) is formed in one or more of the selected rotational and sliding types, and closes the front and rear regions of the installed pre-filter (10) to perform the regeneration operation of the pre-filter (10), or opens to allow outside air to flow.

[0056] At this time, in the case of the external air blocking body (311-1) being a rotating type, it is desirable that a sealing material be formed on the contact surface between the ceiling surface and the floor surface of the pre-filter unit (311), and that a sealing material also be formed on the contact area between the rotating blades to maintain airtightness. In the case of the sliding type, it is desirable that a sealing material be formed on the sliding side, and that a sealing material be formed on at least one of the ceiling surface and the floor surface of the contacting pre-filter unit (311) to maintain airtightness. Through this, the air supplied from the air supply body (311-2) flows stably into the air discharge hole (311-3), thereby allowing foreign matter formed in front of the pre-filter (10) to be easily removed.

[0057] The air supply unit (311-2) consists of a motor and a fan that supply air to the rear area of ​​the installed pre-filter (10). However, it is obvious that it can be formed by various means as long as the supply of air for the regeneration of the pre-filter (10) to the rear area of ​​the pre-filter (10) is smooth.

[0058] The air discharge hole (311-3) is preferably formed by penetrating the bottom surface of the front area to prevent foreign substances detached from the pre-filter (10) from flying away, and is formed with a size that allows foreign substances to be discharged from the pre-filter unit (311) along with the supplied and flowing air. In addition, the pre-filter unit (311) is formed such that the bottom surface of the front area has a certain slope in the direction of the air discharge hole (311-3), thereby allowing foreign substances to flow easily into the air discharge hole (311-3) along with the air flow.

[0059] In addition, the pre-filter unit (311) includes a hole opening / closing operating body (311-4) that opens and closes the air discharge hole (311-3). The hole opening / closing operating body (311-4) blocks the air discharge hole (311-3) when there is a flow of outside air to prevent the flow of outside air from escaping, and opens it when the pre-filter (10) is in operation to allow air flow through the air supply body (311-2), and allows foreign substances moving along with it to be recovered into the air discharge hole (311-3).

[0060] Additionally, the pre-filter unit (311) includes a foreign matter recovery channel (311-5) coupled with an air discharge hole (311-3) through which air and foreign matter move, and a foreign matter capture body (311-6) that captures foreign matter moved from the foreign matter recovery channel (311-5).

[0061] The foreign matter capture body (311-6) is formed with a mesh inside, thereby discharging the moved air and capturing the foreign matter that moves along with it by filtering it through the mesh. Of course, the foreign matter capture body (311-6) may be equipped with a vacuum motor to increase the airflow and facilitate the movement of foreign matter, and it is also possible to capture the foreign matter by separating the air and foreign matter through a cyclone dust collection method.

[0062] In addition, the foreign substance capture device (311-6) is formed of a transparent or translucent material so that the user can easily measure the amount of captured foreign substance.

[0063] In addition, the pre-filter unit (311) of the present invention includes a washing water sprayer (311-7) that sprays washing water onto the installed pre-filter (10).

[0064] The washing water sprayer (311-7) can efficiently remove foreign substances attached to the pre-filter (10) by spraying washing water onto the pre-filter (10). That is, the pre-filter unit (311) can detach foreign substances attached to the front of the pre-filter (10) by air flowing from the rear to the front of the pre-filter (10), and can also efficiently remove foreign substances attached to the front of the pre-filter (10) by directly spraying washing water using the washing water sprayer (311-7). In addition, the pre-filter (10) with washing water on it can be dried along with the detachment of moisture through the flow of air through the air supply body (311-2) and the air discharge hole (311-3).

[0065] The cleaning water sprayer (311-7) can perform an efficient foreign substance removal operation by obtaining information on the type or size of foreign substances attached to the front of the pre-filter (10) through the information collection means (310-2) described above, and by direct spraying or diffusion spraying corresponding to the foreign substances.

[0066] (Example 4-1) The present invention relates to a heat exchanger, wherein in Example 2-1, the dehumidifying filter unit (315) comprises: a circulation operating body (315-1) that fixes or circulates the dehumidifying filter (50) in an up-and-down direction; and a drying operating body (315-2) that supplies air to the circulating dehumidifying filter (50) to dry it.

[0067] (Example 4-2) The present invention relates to a heat exchanger, wherein in Example 4-1, the circulating body (315-1) is formed as a wheel that circulates a dehumidifying filter (50) coupled thereto through rotation.

[0068] (Example 4-3) The present invention relates to a heat exchanger, wherein in Example 4-1, the dehumidification filter unit (315) includes a regeneration operation partition (315-3) that blocks the flow of outside air to the drying operation body (315-1).

[0069] (Example 4-4) The present invention relates to a heat exchanger, wherein in Example 4-3, the dehumidifying filter unit (315) comprises a compression operating body (315-4) that compresses the dehumidifying filter (50) circulating between the circulating operating body (315-1).

[0070] (Examples 4-5) The present invention relates to a heat exchanger, and in Example 4-4, the compression operating body (315-4) is formed as a wheel that rotates freely or is forced to rotate.

[0071] (Example 4-6) The present invention relates to a heat exchanger, wherein in Example 4-4, the dehumidification filter unit (315) includes a pressure control body (315-5) that controls the pressure applied by the compression operating body (315-4) to the dehumidification filter (50).

[0072] (Example 4-7) The present invention relates to a heat exchanger, wherein in Example 4-6, the pressure control body (315-5) is formed as a spring that supplies elastic force in the compression direction of the compression operating body (315-4).

[0073] The dehumidifying filter unit (315) of the present invention includes a circulation operating body (315-1) that fixes the dehumidifying filter (50) or circulates it in an up-and-down direction, and a drying operating body (315-2) that regenerates the dehumidifying filter (50) by supplying air to the circulating dehumidifying filter (50) to dry it.

[0074] The circulation operating body (315-1) is formed with at least two members spaced apart in the vertical direction of the dehumidification filter unit (50) and is formed as a wheel that fixes or circulates the dehumidification filter (50) engaged therewith through rotation. For dehumidification filtering operation, the circulation operating body (315-1) fixes and positions the dehumidification filter (50) in the vertical direction to absorb moisture in the outside air flowing in from the front, or when performing a regeneration operation by removing moisture from the dehumidification filter (50), it circulates the dehumidification filter (50), which is positioned to surround it, in the vertical direction through the rotation of the wheel, thereby causing the drying operating body (315-2) to dry it.

[0075] As described above, the drying unit (315-2) supplies air to the circulating dehumidifying filter (50) to dry it, thereby enabling the regeneration of the dehumidifying filter (50). The drying unit (315-2) may be formed with a fan and a motor that supply air. Additionally, the drying unit (315-2) may further include a heating means for heating the supplied air for efficient drying.

[0076] In addition, the dehumidifying filter unit (315) includes a regeneration operation partition (315-3) that blocks the flow of outside air to the drying operation body (315-2). By blocking the movement of outside air containing moisture to the drying operation body (315-2), the regeneration operation partition (315-3) separately forms a space for the regeneration operation of the dehumidifying filter (50) within the dehumidifying filter unit (315), thereby enabling efficient regeneration of the dehumidifying filter (50) following drying.

[0077] That is, the regeneration operation partition (315-1) separates the filtering space and the regeneration space within the dehumidification filter unit (315) by blocking the inflow of outside air, so that the regeneration operation can operate without interruption along with the filtering operation.

[0078] Additionally, the dehumidifying filter unit (315) includes a compression body (315-4) that compresses the dehumidifying filter (50) circulating between the circulating body (315-1) and the circulating body (315-1).

[0079] The compression operating body (315-4) can be applied to a dehumidifying filter (50) that does not undergo deformation of shape and does not interfere with the filtering operation even when moisture is discharged by applying pressure to the dehumidifying filter (50). The compression operating body (315-4) is formed as a wheel that rotates freely or is forced to rotate.

[0080] In addition, the dehumidification filter unit (315) includes a pressure control body (315-5) that controls the pressure applied by the compression operating body (315-4) to the dehumidification filter (50).

[0081] The pressure control body (315-5) is formed as a spring that supplies elastic force in the compression direction of the compression operating body (315-4), thereby controlling the pressure applied by the compression operating body (315-4) to the dehumidification filter (50) together with the circulation operating body (315-1). This prevents damage or breakage, such as tearing of the dehumidification filter (50) due to excessive pressure, and enables smooth circulation of the dehumidification filter (50). Explanation of the symbols

[0082] 100 : Case 101 : Bulkhead 110 : Indoor Inlet 120 : Indoor Outlet 130 : Outdoor Inlet 140 : Outdoor Outlet 200 : Heat exchange element 300 : Filter section 310: Filter subunit 310-1: Information output means 310-2 : Means of information gathering 310-3 : Transmitter / receiver 310-4 : Alarm unit 311 : Pre-filter unit 311-1 : External air blocking unit 311-2 : Air supply unit 311-3 : Air exhaust hole 311-4 : Hole opening operating body 311-5 : Foreign matter recovery channel 311-6 : Foreign matter capture device 311-7 : Washing water sprayer 312 : HEPA filter unit 313: Antibacterial filter unit 314: Deodorizing filter unit 315: Dehumidification filter unit 315-1: Circulation operating body 315-2 : Drying operating body 315-3 : Regeneration operating bulkhead 315-4 : Compression actuator 315-5 : Pressure controller 320: Connecting means 321: Binding means 322 : Magnetic means 323 : Clamp means 410 : Supply fan 420 : Exhaust fan

Claims

Claim 1 A case (100) comprising an indoor inlet (110) and an indoor outlet (120) formed on one side, and an outdoor inlet (130) and an outdoor outlet (140) formed on the other side; a heat exchange element (200) formed inside the case (100) and capable of performing heat exchange between air that crosses each other; a filter unit (300) coupled to the outdoor inlet (130) and performing a filtering operation of the outside air flowing in from the front; the filter unit (300) comprises a filter float unit (310) composed of one or more selected from a pre-filter unit (311), a HEPA filter unit (312), an antibacterial filter unit (313), a deodorizing filter unit (314), and a dehumidifying filter unit (315); a coupling means (320) for coupling two or more selected from the filter float unit (310) in the direction of air flow; the pre-filter unit (311) is installed A heat exchanger comprising: an external air blocking body (311-1) that opens and closes a certain front and rear area of ​​a pre-filter (10); an air supply body (311-2) that supplies air to the rear area of ​​the pre-filter (10); and an air discharge hole (311-3) through which air is discharged to the outside in the front area of ​​the pre-filter (10). Claim 2 delete Claim 3 delete Claim 4 In claim 1, the dehumidifying filter unit (315) comprises a circulating body (315-1) that fixes the dehumidifying filter (50) or circulates it in an up-and-down direction; and a drying body (315-2) that supplies air to the circulating dehumidifying filter (50) to dry it; a heat exchanger.

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