Heat recovering ventilation apparatus

Abstract

A heat recovery ventilation device is disclosed. The heat recovery ventilation device may be installed in the internal space of a main body and may comprise a heat exchanger in which a plurality of first passages connected between an outside air zone and a supply air zone and a plurality of second passages connected between a ventilation zone and an exhaust zone are independently formed in a plurality of layers so that heat exchange occurs without mixing of the air moving through each passage; the ventilation zone receiving indoor air through a ventilation port; the outside air zone receiving outside air through an outside port or indoor air received from the ventilation zone receiving indoor air to the heat exchanger; the exhaust zone discharging air received from the ventilation zone to the outside through an exhaust port; and the supply zone receiving air received from the outside zone through the heat exchanger to the indoor space through an supply port. And, the above outside air zone can selectively deliver the outside air to at least one of the first upper passages formed at the top of the first passages of the heat exchanger and the first lower passages formed at the bottom of the first passages of the heat exchanger, and the above ventilation zone can selectively deliver the indoor air to at least one of the second upper passages formed at the top of the second passages of the heat exchanger and the second lower passages formed at the bottom of the second passages of the heat exchanger.

Description

Technology Field

[0001] The present invention relates to a heat recovery ventilation device, and more particularly to a heat recovery ventilation device capable of bypass mode operation without including a separate bypass space for bypass inside the heat recovery ventilation device. Background Technology

[0002] Generally, the indoor air in which we live is polluted by various factors, and ventilation is necessary to expel polluted indoor air to the outside and bring outdoor air into the indoors for a comfortable life. In particular, in places where many people stay in confined spaces, such as offices, ventilation must be performed frequently; methods such as opening windows or using exhaust fans have been used. However, opening windows to ventilate reduces the building's heating and cooling efficiency, and recently, as windows are being minimized to enhance the building's aesthetics, ventilation devices capable of forcibly ventilating the building's air are being installed in buildings.

[0003] Furthermore, as residential buildings become increasingly high-rise, living spaces are becoming more airtight or closed off, with restrictions on window opening due to safety concerns, energy conservation, noise, and security issues. In response to these changes, almost all modern buildings require ventilation systems that supply fresh outside air and expel indoor air; heat recovery ventilation systems equipped with heat exchangers are primarily used for this purpose.

[0004] The above-described heat recovery ventilation system draws outdoor air into the frame through an outdoor intake, filters it using a filter, and supplies it to the interior through an indoor outlet. Simultaneously, it draws indoor air into the frame through an indoor intake and discharges it to the outside through an outdoor outlet. A heat exchanger is provided inside the frame of a typical heat recovery ventilation system. The indoor air drawn in through the indoor intake passes through the heat exchanger to transfer its thermal energy (cold or warm) before being discharged to the outside through the outdoor outlet. Similarly, the outdoor air drawn in through the outdoor intake also passes through the heat exchanger, receives the thermal energy transferred by the indoor air, and is then discharged through the indoor outlet.

[0005] Furthermore, in the case of a heat recovery ventilation system, a bypass mode for outdoor air cooling is performed to maintain a constant indoor temperature using outdoor air without heat exchange. In this case, a separate bypass space is provided at the top or bottom of the heat exchanger so that outdoor air introduced through the outdoor intake port is delivered into the room without passing through the heat exchanger, thereby allowing the outdoor air to be delivered into the room through said bypass space. However, providing such a separate bypass space presents the problem of increasing the size of the heat recovery ventilation system. To solve this problem, Korean Registered Patent No. 10-2460287 discloses a method of forming the bypass space on the side rather than on the top or bottom; however, even in this case, while the height of the heat recovery ventilation system can be reduced, the width increases, and consequently, the problem of the heat recovery ventilation system becoming larger cannot be resolved.

[0006] Furthermore, in typical apartments, not all units have the same floor plan; instead, adjacent units often have symmetrical layouts. Consequently, when using existing heat recovery ventilation systems, the supply and ventilation directions cannot be changed, leading to the problem of having to manufacture left and right types separately. For example, in a staircase-style apartment, units to the left of the stairs must be equipped with a left-type heat recovery ventilation system, while units to the right must be equipped with a right-type system. Therefore, there is the inconvenience of having to manufacture separate heat recovery ventilation systems with symmetrical layouts and then install either the left or right type depending on the installation environment. The problem to be solved

[0007] The problem that the present invention aims to solve is to provide a heat recovery ventilation device capable of bypass mode operation without including a separate bypass space for bypass inside the heat recovery ventilation device. means of solving the problem

[0008] A heat recovery ventilation device according to an embodiment of the present invention for achieving the above objective comprises: a heat exchanger installed in the internal space of a main body, wherein a plurality of first passages connected between an outside air zone and a supply air zone and a plurality of second passages connected between a ventilation zone and an exhaust zone are independently formed in a plurality of layers so as to allow heat exchange to occur without mixing of the air moving through each passage; a ventilation zone formed on a first side of the heat exchanger in the internal space of the main body and receiving indoor air through a ventilation port; an outside zone formed on a second side of the heat exchanger in the internal space of the main body and delivering outside air received through an outside port or indoor air received from the ventilation zone to the heat exchanger; an exhaust zone formed on a third side of the heat exchanger in the internal space of the main body and discharging air received from the ventilation zone to the outside through an exhaust port; and a fourth side of the heat exchanger in the internal space of the main body and delivering air received from the outside zone through the heat exchanger to the indoor space through a supply port. The supply air zone is provided, and the outside air zone selectively delivers the outside air to at least one of the first upper passages formed at the top of the first passages of the heat exchanger and the first lower passages formed at the bottom of the first passages of the heat exchanger, and the ventilation zone can selectively deliver the indoor air to at least one of the second upper passages formed at the top of the second passages of the heat exchanger and the second lower passages formed at the bottom of the second passages of the heat exchanger.

[0009] In the heat exchanger, the first upper passages and the second lower passages are formed spaced apart from each other at a location where heat exchange does not occur, and in the heat exchanger, the second upper passages and the first lower passages may be formed spaced apart from each other at a location where heat exchange does not occur.

[0010] In the case of a bypass mode for delivering the above-mentioned outside air into the room, the outside air zone may deliver the outside air to the supply air zone through the first upper passages and the ventilation zone may deliver the indoor air to the exhaust air zone through the second lower passages, or the outside air zone may deliver the outside air to the supply air zone through the first lower passages and the ventilation zone may deliver the indoor air to the exhaust air zone through the second upper passages.

[0011] In the case of a heat exchange mode in which ventilation is performed between the indoor and outdoor spaces while performing heat exchange, the outdoor air zone can transfer the outdoor air to the supply air zone through the first upper passages and the first lower passages, and the ventilation zone can transfer the indoor air to the exhaust zone through the second upper passages and the second lower passages so that heat exchange can occur within the heat exchanger.

[0012] In the case of an indoor purification mode that purifies indoor air and returns it to the indoor space, the indoor air that has entered the ventilation zone is transferred to the outdoor zone while the outdoor air is blocked to prevent the outdoor air from entering, and then transferred to the supply zone through the first upper passages and the first lower passages.

[0013] The heat recovery ventilation device further comprises a purification filter installed between the outside air zone and the heat exchanger, wherein the purification filter comprises an upper purification filter installed on one side of the first upper passage and a lower purification filter installed on one side of the first lower passage, and the upper purification filter and the lower purification filter may be formed in independent spaces so that the air moving between the first upper passage and the first lower passage is not mixed.

[0014] The above-mentioned outdoor zone may be formed between an outdoor air upper-lower separation plate that separates an outdoor air upper space connected to the first upper movement passages and an outdoor air lower space connected to the first lower movement passages, and between the outdoor air upper-lower separation plate and the outdoor air outlet, and may be equipped with an outdoor air damper that prevents the outdoor air flowing in through the outdoor air outlet from flowing into only one of the first upper movement passage and the first lower movement passage, or the outdoor air flowing in through the outdoor air outlet from flowing through the first upper movement passage and the first lower movement passage, or blocks the outdoor air outlet to prevent the outdoor air from flowing in.

[0015] The above-described outside air damper has a shape in which one side and the other side of the body are bent, and a central axis is coupled to a coupling groove formed on the outside air upper / lower separator plate so that the body rotates, and the body rotates by a first angle so that one side is coupled to the coupling groove and the other side blocks the space between the outside air device and the outside air upper space so that outside air entering through the outside air device moves only to the outside air lower space, or the body rotates by a second angle so that the other side is coupled to the coupling groove and one side blocks the space between the outside air device and the outside air lower space so that outside air entering through the outside air device moves to the outside air upper space, or the body rotates by a third angle so that one side and the other side completely block the space connected to the outside air device, or the body rotates by a fourth angle so that one side and the other side completely open the space connected to the outside air device.

[0016] The ventilation zone may be formed between a ventilation upper / lower separation plate that separates a ventilation upper space connected to the second upper passages and a ventilation lower space connected to the second lower passages, and between the ventilation upper / lower separation plate and the ventilation opening, and may be equipped with a ventilation damper that prevents indoor air entering through the ventilation opening from being delivered to only one of the second upper passage and the second lower passage, or indoor air entering through the ventilation opening from being delivered through the second upper passage and the second lower passage, or blocks the ventilation opening to prevent indoor air from entering.

[0017] The above ventilation damper has a shape in which one side and the other side of the body are bent, and a central axis is coupled to a coupling groove formed on the ventilation upper and lower separating plate so that the body rotates, and the body rotates by a first angle so that one side is coupled to the coupling groove and the other side blocks the space between the ventilation opening and the ventilation upper space so that indoor air entering through the ventilation opening moves only to the ventilation lower space, or the body rotates by a second angle so that the other side is coupled to the coupling groove and one side blocks the space between the ventilation opening and the ventilation lower space so that indoor air entering through the ventilation opening moves to the ventilation upper space, or the body rotates by a third angle so that the space between one side and the other side is completely blocked to the ventilation opening, or the body rotates by a fourth angle so that the space between one side and the other side is completely opened to the ventilation opening.

[0018] The heat recovery ventilation device may further be equipped with an internal circulation damper installed between the ventilation zone and the outside zone to separate the ventilation zone and the outside zone into independent spaces or to change the ventilation zone and the outside zone into connected spaces. Effects of the invention

[0019] A heat recovery ventilation device according to one embodiment of the technical concept of the present invention has the advantage of enabling bypass mode operation without heat exchange by allowing the indoor air entering the ventilation zone to move through the heat exchanger via a path different from the path of the outside air entering the outside zone and the path of the outside air. That is, since the heat recovery ventilation device according to one embodiment of the present invention can perform a bypass mode that enables outside air cooling through the heat exchanger without forming a separate bypass space inside the heat recovery ventilation device, it has the advantage of minimizing the size by reducing the height by about 40 to 50 mm compared to conventional heat recovery ventilation devices. In addition, the heat recovery ventilation device according to one embodiment of the present invention not only does not require the formation of a bypass space at the top or bottom of the heat exchanger, but also has an upper and lower symmetrical structure by using a method that separates the upper and lower passages of the heat exchanger to allow air to move. Therefore, even in cases where neighboring units in existing apartments have a left-right symmetrical floor plan, the left-right type can be changed by installing the heat recovery ventilation device of the present invention in the forward direction or upside down, thus eliminating the need to manufacture a separate heat recovery ventilation device with a left-right symmetrical shape. Brief explanation of the drawing

[0020] A brief description of each drawing is provided to help to better understand the drawings cited in the detailed description of the invention. FIG. 1 is a heat recovery ventilation device (100) according to one embodiment of the technical concept of the present invention. Figures 2 and 3 are drawings showing the interior of the heat recovery ventilation device (100) of Figure 1. FIG. 4 is a drawing illustrating an embodiment of a heat exchanger (150) of the heat recovery ventilation device (100) of FIG. 1. FIG. 5 is a diagram illustrating the case where the heat recovery ventilation device (100) of FIG. 1 operates in bypass mode. FIG. 6 is a diagram illustrating the case where the heat recovery ventilation device (100) of FIG. 1 operates in a heat exchange mode. FIG. 7 is a drawing for explaining the case where the heat recovery ventilation device (100) of FIG. 1 operates in an indoor purification mode. FIG. 8 is a drawing illustrating an embodiment of an outside air damper (115) or a ventilation damper (125) of the heat recovery ventilation device (100) of FIG. 1. FIG. 9 is a drawing illustrating an embodiment of an internal circulation damper (170) of the heat recovery ventilation device (100) of FIG. 1. FIG. 10 is a drawing illustrating an embodiment of a purification filter (160) of the heat recovery ventilation device (100) of FIG. 1. FIG. 11 is a drawing for explaining the case where the heat recovery ventilation device (100) of FIG. 1 is installed upside down. Specific details for implementing the invention

[0021] In order to fully understand the present invention, the operational advantages of the present invention, and the objectives achieved by the implementation of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described therein.

[0022] The present invention will be described in detail below by explaining preferred embodiments of the invention with reference to the attached drawings. Identical reference numerals in each drawing indicate identical components.

[0023] FIG. 1 is a heat recovery ventilation device (100) according to an embodiment of the technical concept of the present invention, FIG. 2 and FIG. 3 are drawings showing the interior of the heat recovery ventilation device (100) of FIG. 1, FIG. 4 is a drawing showing an embodiment of a heat exchanger (150) among the heat recovery ventilation device (100) of FIG. 1. FIG. 5 is a drawing for explaining the case where the heat recovery ventilation device (100) of FIG. 1 operates in a bypass mode, FIG. 6 is a drawing for explaining the case where the heat recovery ventilation device (100) of FIG. 1 operates in a total heat exchange mode, and FIG. 7 is a drawing for explaining the case where the heat recovery ventilation device (100) of FIG. 1 operates in an indoor purification mode. And, FIG. 8 is a drawing illustrating an example of an outside air damper (115) or a ventilation damper (125) of the heat recovery ventilation device (100) of FIG. 1, FIG. 9 is a drawing illustrating an example of an internal circulation damper (170) of the heat recovery ventilation device (100) of FIG. 1, FIG. 10 is a drawing illustrating an example of a purification filter (160) of the heat recovery ventilation device (100) of FIG. 1, and FIG. 11 is a drawing for explaining the case where the heat recovery ventilation device (100) of FIG. 1 is installed upside down.

[0024] Referring to FIGS. 1 to 11, the heat recovery ventilation device (100) may include a ventilation zone (110), an outside air zone (120), an exhaust zone (130), a supply air zone (140), and a heat exchanger (150). The ventilation zone (110), the outside air zone (120), the exhaust zone (130), and the supply air zone (140) are independent spaces from each other.

[0025] A heat exchanger (150) is installed in the internal space of the main body, and a plurality of first passages (310, 320) connected between the outside air zone (120) and the supply air zone (140) and a plurality of second passages (330, 340) connected between the ventilation zone (110) and the exhaust zone (130) are formed independently with a plurality of layers so that heat exchange can occur without mixing the air moving through each passage. For example, the heat exchanger (150) has first passages (310, 320) through which outside air moves from the outside air zone (120) to the supply air zone (140) and second passages (330, 340) through which indoor air moves from the ventilation zone (110) to the exhaust zone (130), which are formed to be independent of each other and intersect, so that heat exchange occurs as the outside air and the indoor air move through each of the passages. That is, heat exchange occurs only between the air moving through adjacent passages among the first passages (310, 320) and the second passages (330, 340) inside the heat exchanger (150), and heat exchange does not occur between the air moving through the first passage and the second passage located at a separated position, which are non-adjacent passages, because they do not come into contact with each other. And, multiple passages can be formed to have multiple layers and form independent paths as shown in FIG. 3.

[0026] Among the first passages formed in the heat exchanger (150), the passage formed at the top is defined as the first upper passage (310), and the passage formed at the bottom is defined as the first lower passage (320). Additionally, among the second passages formed in the heat exchanger (150), the passage formed at the top is defined as the second upper passage (330), and the passage formed at the bottom is defined as the second lower passage (340). In the heat exchanger (150), the first upper passages (310) and the second lower passages (340) are formed spaced apart at a location where heat exchange does not occur between them, and the second upper passages (320) and the first lower passages (330) in the heat exchanger (150) may be formed spaced apart at a location where heat exchange does not occur between them. Accordingly, heat exchange does not occur between the air moving through the first upper passages (310) and the air moving through the second lower passages (340), and heat exchange does not occur between the air moving through the second upper passages (330) and the air moving through the first lower passages (320). Conversely, heat exchange occurs between the air moving through the first upper passages (310) and the air moving through the second upper passages (330) within the heat exchanger (150), and heat exchange occurs between the air moving through the first lower passages (320) and the air moving through the second lower passages (340).

[0027] The ventilation zone (110) is formed on the first side of the heat exchanger (150) within the internal space of the main body and can receive indoor air (RA) through the ventilation port (111). That is, the ventilation zone (110) of the present invention is a part that can receive indoor air (RA) from the indoor space through a duct, etc., connected to the ventilation port (111).

[0028] The outside air zone (120) is formed on the second side of the heat exchanger (150) within the internal space of the main body, and can receive outside air (OA) through the outside air outlet (121) or receive indoor air (RA) from the ventilation zone (110). The outside air zone (120) can deliver the received outside air (OA) or indoor air (RA) to the heat exchanger (150). Here, a purification filter (160) may be installed between the heat exchanger (110) and the outside air zone (120), and the outside air (OA) or indoor air (RA) delivered through the outside air zone (120) can be delivered to the heat exchanger (150) through the purification filter (160). That is, the outside air zone (120) may transfer outside air (OA) received through the outside air outlet (121) to the heat exchanger (150) via the filter (160), or it may transfer indoor air (RA) that has flowed into the ventilation zone (110) and is transferred to the outside air zone (120) without passing through the heat exchanger (150) to the heat exchanger (110) via the filter (160). This will be explained in more detail below while describing the bypass mode, heat exchange mode, and indoor purification mode.

[0029] The exhaust zone (130) is formed on the third side of the heat exchanger (150) within the internal space of the main body, and can discharge air received from the ventilation zone (110) to the outside as exhaust air (EA) through the exhaust port (131). An exhaust fan (135) may be formed in the exhaust zone (130), and by operating the exhaust fan (135), air received from the ventilation zone (110) can be discharged to the outside through the heat exchanger (150).

[0030] The supply zone (140) is formed on the fourth side of the heat exchanger (110) in the internal space of the main body, and can deliver air received from the outside zone (120) through the heat exchanger (150) as supply air (SA) into the room through the supply port (141). A supply fan (145) may be formed in the supply zone (140), and by operating the supply fan (145), air received from the outside zone (120) through the heat exchanger (150) can be delivered into the room.

[0031] According to one embodiment of the technical concept of the present invention, the outside air zone (120) can selectively deliver outside air (OA) to at least one of the first upper passages (310) formed at the upper part of the first passages of the heat exchanger (150) and the first lower passages (320) formed at the lower part of the first passages of the heat exchanger. That is, the outside air zone (120) may deliver outside air (OA) only to the first upper passages (310), or only to the first lower passages (320), or may deliver it to both the first upper passages (310) and the first lower passages (320).

[0032] Additionally, the ventilation zone (110) can selectively deliver indoor air (RA) to at least one of the second upper passages (330) formed at the upper part of the second passages of the heat exchanger (150) and the second lower passages (340) formed at the lower part of the second passages of the heat exchanger. That is, the ventilation zone (110) may deliver indoor air (RA) only to the second upper passages (330), or only to the second lower passages (340), or to both the second upper passages (330) and the second lower passages (340).

[0033] The above operation varies depending on the operation mode of the heat recovery ventilation device (100), and below, the operation of each mode will be explained in more detail with reference to FIGS. 5 to 7. For reference, in FIGS. 5 to 7, the arrows indicated by solid lines represent air moving through the upper passages, the arrows indicated by dotted lines represent air moving through the lower passages, and the arrows indicated by both solid and dotted lines represent air moving through the upper passages and the lower passages together.

[0034] Figure 5 relates to a bypass mode for delivering outside air (OA) into the room, and the bypass mode is a case where outside air (OA) is delivered into the room for outside air cooling. In this case, since heat exchange must not occur when the outside air (OA) is delivered into the room, conventional heat recovery ventilation systems have a separate bypass space and use a method of delivering outside air (OA) or indoor air (RA) through said bypass space.

[0035] However, in the case of the present invention, when the bypass mode is applied, the outside air zone (120) can deliver outside air (OA) to the supply air zone (140) through the first upper passages (310), and the ventilation zone (110) can deliver indoor air (RA) to the exhaust zone (130) through the second lower passages (340). In this case, the first upper passages (310) and the second lower passages (340) are located at a spaced-apart position, so that no heat exchange occurs between the air moving through each passage, and thus the outside air (OA) is delivered into the room without any heat exchange. As another example, when the above bypass mode is applied, the outside air zone (120) can deliver outside air (OA) to the supply air zone (140) through the first lower passages (320), and the ventilation zone (110) can deliver indoor air (RA) to the exhaust zone (130) through the second upper passages (330). In this case, the first lower passages (320) and the second upper passages (330) are located at a spaced-apart position, so that no heat exchange occurs between the air moving through each passage, and thus the outside air (OA) is delivered into the room without any heat exchange.

[0036] FIG. 6 relates to a heat exchange mode that ventilates between the indoor and outdoor spaces while performing heat exchange. The heat exchange mode is a case in which heat exchange occurs between the outdoor air (OA) while it is being transferred to the indoor space and the indoor air (RA) is being discharged to the outside. When the heat exchange mode is applied, the outdoor air zone (120) can transfer the outdoor air (OA) to the supply air zone (140) through the first upper passages (310) and the first lower passages (320), and the ventilation zone (110) can transfer the indoor air (RA) to the exhaust zone (130) through the second upper passages (330) and the second lower passages (340). In this case, heat exchange occurs between the air moving through the first upper passages (310) and the second upper passages (330), and heat exchange occurs between the air moving through the first lower passages (320) and the second lower passages (340), so the outside air (OA) is transferred into the room while heat exchange occurs.

[0037] FIG. 7 relates to an indoor purification mode that purifies indoor air and returns it to the indoor space. The indoor purification mode is a case where the outdoor air (OA) is not returned to the indoor space, but the indoor air (RA) is purified through a purification filter (160) and then returned to the indoor space. When the indoor purification mode is applied, the outdoor air outlet (121) is blocked so that the outdoor air (OA) does not enter, and the indoor air that has entered the ventilation zone (110) is transferred to the outdoor zone (120), then passes through the purification filter (160), and is transferred to the supply zone (140) through the first upper passages (310) and the first lower passages (320).

[0038] In order to separate the outside air zone (120) into the first upper passages (310) and the first lower passages (320) to deliver outside air (OA), or to deliver outside air (OA) together to the first upper passages (310) and the first lower passages (320), or to block the outside air (121), the outside air zone (120) may be equipped with an outside air upper / lower separation plate (220) and an outside air damper (125). However, in the present invention, the outside air zone (120) is not necessarily required to be equipped with an outside air upper / lower separation plate (220) and an outside air damper (125), and may have a different structure as long as it is possible to move air in the outside air zone (120) as described above.

[0039] The external air upper / lower separation plate (220) is a plate formed at the boundary between the first upper movement passages (310) and the second lower movement passages (320), and the external air zone (120) is a boundary plate that independently separates the external air upper space and the external air lower space. The external air upper space formed based on the external air upper / lower separation plate (220) is connected to the first upper movement passages (310), and the external air lower space is connected to the first lower movement passages (320). Accordingly, the air located in the external air upper space is delivered only to the first upper movement passages (310), and the air located in the external air lower space is delivered only to the first lower movement passages (320).

[0040] The outside air damper (125) is formed between the outside air upper / lower separator plate (220) and the outside air outlet (121) so that the outside air (OA) flowing in through the outside air outlet (121) is transmitted only to the outside air upper space, only to the outside air lower space, or to both the outside air upper space and the outside air lower space, or so that the outside air (OA) is not transmitted. Accordingly, depending on the operation of the outside air damper (125), the outside air (OA) introduced through the outside air outlet (121) may be transmitted to only one of the first upper passage (310) and the first lower passage (320), or the outside air (OA) introduced through the outside air outlet (121) may be transmitted through the first upper passage (310) and the first lower passage (320), or the outside air (OA) introduced through the outside air outlet (121) may be blocked so that the outside air (OA) is not introduced.

[0041] In one embodiment, the outside air damper (125) has a shape in which one side and the other side of the body are bent, and the central axis is coupled to a coupling groove formed in the outside air upper / lower separation plate (220) so that the body can rotate. In addition, the outside air damper (125) can rotate the body by a first angle so that one side is coupled to the coupling groove and the other side blocks the space between the outside air device (121) and the outside air upper space, thereby allowing the outside air flowing in through the outside air device (121) to move only to the outside air lower space. Alternatively, the outside air damper (125) can rotate the body by a second angle so that the other side is coupled to the coupling groove and one side blocks the space between the outside air device (121) and the outside air lower space, thereby allowing the outside air (OA) flowing in through the outside air device (121) to move to the outside air upper space. Alternatively, the outside air damper (125) may rotate the body by a third angle to completely block the space where one side and the other side are connected to the outside air outlet (121). Alternatively, the outside air damper (125) may rotate the body by a fourth angle to completely open the space where one side and the other side are connected to the outside air outlet (121). For example, as shown in the drawing, the outside air damper (125) may have one side and the other side of the body bent at an angle of 120 degrees. Also, the part of the ventilation port (121) that contacts the body of the outside air damper (125) may have the same angle as the bent angle between the bodies of the outside air damper (125), as shown in FIG. 8.

[0042] For example, in the case where the body of the outside air damper (125) is rotated by a first angle as in FIG. 8 (a), the space between the outside air outlet (121) and the outside air upper space is blocked by the outside air damper (125), but the space between the outside air outlet (121) and the outside air lower space is opened, so that the outside air (OA) flowing in through the outside air outlet (121) can only move to the outside air lower space. As another example, in the case where the body of the outside air damper (125) is rotated by a second angle as in FIG. 8 (b), the space between the outside air outlet (121) and the outside air lower space is blocked by the outside air damper (125), but the space between the outside air outlet (121) and the outside air upper space is opened, so that the outside air (OA) flowing in through the outside air outlet (121) can only move to the outside air upper space. In another example, when the body of the outside air damper (125) rotates by a third angle to block the entire space where one side and the other side are connected to the outside air outlet (121), the outside air outlet (121) is closed so that outside air (OA) does not flow into the outside air zone (120). In another example, when the body of the outside air damper (125) rotates by a fourth angle to open the entire space where one side and the other side are connected to the outside air outlet (121), the outside air outlet (121) is fully opened so that outside air (OA) flows into both the outside air upper space and the outside air lower space of the outside air zone (120).

[0043] A purification filter (160) installed between the outside zone (120) and the heat exchanger (150) may be equipped with an upper purification filter and a lower purification filter. The upper purification filter may be installed on one side of the first upper passage (310), and the lower purification filter may be installed on one side of the first lower passage (320). In addition, the upper purification filter and the lower purification filter may be formed in independent spaces so that the air moving between the first upper passage (310) and the first lower passage (320) is not mixed. For example, as illustrated in FIG. 10, the purification filter (160) may have the upper purification filter (1010, 1030) and the lower purification filter (1020, 1040) combined on a filter case (1050) formed to separate the part where the upper purification filter (1010, 1030) is combined and the part where the lower purification filter (1020, 1040) is combined into independent spaces.

[0044] Likewise, in order to separate the ventilation zone (110) into the second upper passages (330) and the second lower passages (340) to deliver indoor air (RA), or to deliver indoor air (RA) together into the second upper passages (330) and the second lower passages (340), or to block the ventilation opening (111), the ventilation zone (110) may be equipped with a ventilation upper / lower separation plate (210) and a ventilation damper (115). However, in the present invention, the ventilation zone (110) is not necessarily required to be equipped with a ventilation upper / lower separation plate (210) and a ventilation damper (115), and may have a different structure as long as it can move air as described above in the ventilation zone (110).

[0045] The ventilation upper / lower separation plate (210) is a plate formed at the boundary between the second upper passages (330) and the second lower passages (320), and the ventilation zone (110) is a boundary plate that independently separates the ventilation upper space and the ventilation lower space. The ventilation upper space formed based on the ventilation upper / lower separation plate (210) is connected to the second upper passages (330), and the ventilation lower space is connected to the second lower passages (340). Accordingly, the air located in the ventilation upper space is delivered only to the second upper passages (330), and the air located in the ventilation lower space is delivered only to the second lower passages (340).

[0046] The ventilation damper (115) is formed between the ventilation upper and lower separator plate (210) and the ventilation opening (111) so that indoor air (RA) entering through the ventilation opening (111) is transmitted only to the ventilation upper space, only to the ventilation lower space, or to both the ventilation upper space and the ventilation lower space, or so that indoor air (RA) is not introduced. Accordingly, depending on the operation of the ventilation damper (115), indoor air (RA) entering through the ventilation opening (111) may be transferred to only one of the first upper passage (310) and the first lower passage (320), or indoor air (RA) entering through the ventilation opening (111) may be transferred through the first upper passage (310) and the first lower passage (320), or the ventilation opening (111) may be blocked so that indoor air (RA) does not enter.

[0047] In one embodiment, the ventilation damper (115) has a shape in which one side and the other side of the body are bent, and the central axis is coupled to a coupling groove formed in the ventilation upper / lower separation plate (210) so that the body can rotate. In addition, the ventilation damper (115) can rotate the body by a first angle so that one side is coupled to the coupling groove and the other side blocks the space between the ventilation port (111) and the ventilation upper space, thereby allowing indoor air entering through the ventilation port (111) to move only to the ventilation lower space. Alternatively, the ventilation damper (115) can rotate the body by a second angle so that the other side is coupled to the coupling groove and one side blocks the space between the ventilation port (111) and the ventilation lower space, thereby allowing indoor air (RA) entering through the ventilation port (111) to move to the ventilation upper space. Alternatively, the ventilation damper (115) may rotate the body by a third angle to completely block the space where one side and the other side are connected to the ventilation opening (111). Alternatively, the ventilation damper (115) may rotate the body by a fourth angle to completely open the space where one side and the other side are connected to the ventilation opening (111). For example, as shown in the drawing, the ventilation damper (115) may have one side and the other side of the body bent at an angle of 120 degrees. Also, the part of the ventilation opening (121) that contacts the body of the ventilation damper (115) may have the same angle as the bent angle between the bodies of the ventilation damper (115), as shown in FIG. 8.

[0048] For example, in the case where the body of the ventilation damper (115) is rotated by a first angle as in FIG. 8 (a), the ventilation damper (115) blocks the space between the ventilation opening (111) and the ventilation upper space, but opens the space between the ventilation opening (111) and the ventilation lower space, so that indoor air (RA) entering through the ventilation opening (111) can only move to the ventilation lower space. As another example, in the case where the body of the ventilation damper (115) is rotated by a second angle as in FIG. 8 (b), the ventilation damper (115) blocks the space between the ventilation opening (111) and the ventilation lower space, but opens the space between the ventilation opening (111) and the ventilation upper space, so that indoor air (RA) entering through the ventilation opening (111) can only move to the ventilation upper space. In another example, when the body of the ventilation damper (115) rotates by a third angle to block the entire space where one side and the other side are connected to the ventilation opening (111), the ventilation opening (111) is closed so that indoor air (RA) does not flow into the ventilation zone (110). In another example, when the body of the ventilation damper (115) rotates by a fourth angle to open the entire space where one side and the other side are connected to the ventilation opening (111), the ventilation opening (111) is fully opened so that indoor air (RA) flows into both the upper ventilation space and the lower ventilation space of the ventilation zone (110).

[0049] If the above bypass mode is in place, the ventilation damper (115) rotates its body by a first angle as in FIG. 8(a) and the outside air damper (125) rotates its body by a second angle as in FIG. 8(b), so that the indoor air (RA) is delivered through the second lower passage (340) and the outside air (OA) is delivered through the first upper passage (310). Alternatively, as another example of the above bypass mode, the ventilation damper (115) rotates its body by a second angle as in FIG. 8(b) and the outside air damper (125) rotates its body by a first angle as in FIG. 8(a), so that the indoor air (RA) is delivered through the second upper passage (330) and the outside air (OA) is delivered through the first lower passage (320). As another example, in the case of the above heat exchange mode, the ventilation damper (115) and the outside air damper (125) can be rotated by a fourth angle as shown in (d) of FIG. 8, so that indoor air (RA) is delivered through the second upper passage (330) and the second lower passage (340), and outside air (OA) is delivered through the first upper passage (310) and the first lower passage (320).

[0050] As another example, in the case of the indoor purification mode described above, the ventilation damper (115) can be rotated by a fourth angle as shown in Fig. 8 (d) and the outside air damper (125) can be rotated by a third angle as shown in Fig. 8 (c), thereby allowing indoor air (RA) to flow into the ventilation zone (110) and preventing outside air (OA) from flowing into the outside air zone (120). In this case, an internal circulation damper (170) can be used to ensure that the indoor air (RA) flowing into the ventilation zone (110) is transferred to the outside air zone (120). The internal circulation damper (170) is installed between the ventilation zone (110) and the outside air zone (120) to separate the ventilation zone (110) and the outside air zone (120) into independent spaces or to change the ventilation zone (110) and the outside air zone (120) into connected spaces. For example, the internal circulation damper (170) may have a plate shape that rotates around the ventilation upper / lower separation plate (210) and the outside air upper / lower separation plate (220) as a central axis, as shown in FIG. 9. That is, if the ventilation zone (110) and the outside air zone (120) are to be separated into independent spaces, the internal circulation damper (170) may be rotated and fixed in a vertical direction so that air cannot move between the ventilation zone (110) and the outside air zone (120). As another example, if the ventilation zone (110) and the outside air zone (120) are to be changed into a connected space, the internal circulation damper (170) may be rotated and fixed in a horizontal direction to the ventilation upper / lower separation plate (210) and the outside air upper / lower separation plate (220) so that air can move between the ventilation zone (110) and the outside air zone (120).That is, in the above indoor purification mode, the ventilation damper (115) rotates its body by a fourth angle as shown in Fig. 8 (d), and the outside air damper (125) rotates its body by a third angle as shown in Fig. 8 (c), and the internal circulation damper (170) rotates and is fixed horizontally to the ventilation upper / lower separation plate (210) and the outside air upper / lower separation plate (220), and by turning off the exhaust fan (135) and turning on the supply fan (145), the indoor air (RA) introduced into the ventilation zone (110) can be transferred to the outside air zone (120) and then transferred to the supply air zone (140) through the first upper movement passages (310) and the first lower movement passages (320).

[0051] As explained above, the heat recovery ventilation device (100) according to one embodiment of the technical concept of the present invention does not require a separate bypass space and uses a method of separating the upper and lower passages of the heat exchanger to allow air to move, thereby having an upper and lower symmetrical structure. Therefore, in cases where neighboring households in existing apartments have a left-right symmetrical planar structure, the left-right type can be changed by installing the heat recovery ventilation device (100) of the present invention in a forward direction as shown in FIG. 1, or by installing the heat recovery ventilation device (100) of FIG. 1 in an inverted state as shown in FIG. 11.

[0052] As described above, the best embodiments have been disclosed in the drawings and specification. Specific terms have been used herein, but they are used only for the purpose of describing the invention and are not intended to limit the meaning or the scope of the invention as described in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the invention should be determined by the technical spirit of the appended claims.

Claims

Claim 1 A heat exchanger installed in the internal space of the main body, wherein a plurality of first passages connected between an outside air zone and a supply air zone and a plurality of second passages connected between a ventilation zone and an exhaust zone are independently formed in a plurality of layers to allow heat exchange to occur without mixing of the air moving through each passage; the ventilation zone formed on the first side of the heat exchanger in the internal space of the main body and receiving indoor air through a ventilation port; the outside zone formed on the second side of the heat exchanger in the internal space of the main body and delivering outside air received through an outside port or indoor air received from the ventilation zone to the heat exchanger; and the exhaust zone formed on the third side of the heat exchanger in the internal space of the main body and discharging air received from the ventilation zone to the outside through an exhaust port.and is provided with a supply zone formed on the fourth side of the heat exchanger within the internal space of the main body, which transmits air received from the outside zone through the heat exchanger into the room through a supply port; the outside zone selectively transmits the outside air to at least one of the first upper movement passages formed at the top of the first movement passages of the heat exchanger and the first lower movement passages formed at the bottom of the first movement passages of the heat exchanger; the ventilation zone selectively transmits the indoor air to at least one of the second upper movement passages formed at the top of the second movement passages of the heat exchanger and the second lower movement passages formed at the bottom of the second movement passages of the heat exchanger; and in the case of a bypass mode for transmitting the outside air into the room, the outside zone transmits the outside air to the supply zone through the first upper movement passages, and the ventilation zone transmits the outside air through the second lower movement passages. In the case of a heat exchange mode in which indoor air is delivered to the exhaust zone, or the outside air zone delivers the outside air to the supply zone through the first lower passages and the ventilation zone delivers the indoor air to the exhaust zone through the second upper passages, and ventilation is performed between the indoor and outdoor spaces while performing heat exchange, the outside air zone delivers the outside air to the supply zone through the first upper passages and the first lower passages, and the ventilation zone delivers the indoor air to the exhaust zone through the second upper passages and the second lower passages, so that heat exchange occurs within the heat exchanger; within the heat exchanger, the first upper passages and the second lower passages are formed spaced apart at a location where heat exchange does not occur with each other, and within the heat exchanger, the second upper passages and the first lower passages are at a location where heat exchange does not occur with each other A heat recovery ventilation device characterized by being formed with a gap. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 A heat recovery ventilation device according to claim 1, characterized in that, in the case of an indoor purification mode that purifies indoor air and returns it to the indoor space, the indoor air introduced into the ventilation zone is transferred to the outdoor zone while the outdoor air is blocked to prevent the outdoor air from entering, and then transferred to the supply zone through the first upper passages and the first lower passages. Claim 6 The heat recovery ventilation device according to claim 1 further comprises a purification filter installed between the outside air zone and the heat exchanger, wherein the purification filter comprises an upper purification filter installed on one side of the first upper passage; and a lower purification filter installed on one side of the first lower passage, wherein the upper purification filter and the lower purification filter are formed in independent spaces so as not to mix the air moving between the first upper passage and the first lower passage. Claim 7 A heat exchanger installed in the internal space of the main body, wherein a plurality of first passages connected between an outside air zone and a supply air zone and a plurality of second passages connected between a ventilation zone and an exhaust zone are independently formed in a plurality of layers to allow heat exchange to occur without mixing of the air moving through each passage; the ventilation zone formed on the first side of the heat exchanger in the internal space of the main body and receiving indoor air through a ventilation port; the outside zone formed on the second side of the heat exchanger in the internal space of the main body and delivering outside air received through an outside port or indoor air received from the ventilation zone to the heat exchanger; and the exhaust zone formed on the third side of the heat exchanger in the internal space of the main body and discharging air received from the ventilation zone to the outside through an exhaust port.and is provided with a supply zone formed on the fourth side of the heat exchanger within the internal space of the main body, which transmits air received from the outside zone through the heat exchanger into the room through a supply port; the outside zone selectively transmits the outside air to at least one of the first upper movement passages formed at the top of the first movement passages of the heat exchanger and the first lower movement passages formed at the bottom of the first movement passages of the heat exchanger; the ventilation zone selectively transmits the indoor air to at least one of the second upper movement passages formed at the top of the second movement passages of the heat exchanger and the second lower movement passages formed at the bottom of the second movement passages of the heat exchanger; and in the case of a bypass mode for transmitting the outside air into the room, the outside zone transmits the outside air to the supply zone through the first upper movement passages, and the ventilation zone transmits the outside air through the second lower movement passages. In the case of a heat exchange mode in which indoor air is delivered to the exhaust zone, or the outdoor zone delivers outdoor air to the supply zone through the first lower passages and the ventilation zone delivers indoor air to the exhaust zone through the second upper passages, and ventilation is performed between the indoor and outdoor spaces while performing heat exchange, the outdoor zone delivers outdoor air to the supply zone through the first upper passages and the first lower passages, and the ventilation zone delivers indoor air to the exhaust zone through the second upper passages and the second lower passages so that heat exchange occurs within the heat exchanger, and the outdoor zone comprises an outdoor air upper / lower separating plate that separates an outdoor air upper space connected to the first upper passages and an outdoor air lower space connected to the first lower passages;and an external air damper formed between the external air upper / lower separator plate and the external air outlet, which causes external air introduced through the external air outlet to be delivered to only one of the first upper movement passage and the first lower movement passage, or causes external air introduced through the external air outlet to be delivered through the first upper movement passage and the first lower movement passage, or blocks the external air outlet to prevent the external air from being introduced, and the ventilation zone comprises a ventilation upper / lower separator plate that separates a ventilation upper space connected to the second upper movement passages and a ventilation lower space connected to the second lower movement passages; A heat recovery ventilation device characterized by having a ventilation damper formed between the ventilation upper / lower separating plate and the ventilation opening, wherein the indoor air introduced through the ventilation opening is transferred to only one of the second upper passage and the second lower passage, or the indoor air introduced through the ventilation opening is transferred through the second upper passage and the second lower passage, or the ventilation damper blocks the ventilation opening to prevent the indoor air from entering. Claim 8 In claim 7, the above-described outdoor air damper has a shape in which one side and the other side of the body are bent, and a central axis is coupled to a coupling groove formed on the outdoor air upper / lower separator plate so that the body rotates, and the body rotates by a first angle so that one side is coupled to the coupling groove and the other side blocks the space between the outdoor air outlet and the outdoor air upper space so that outdoor air flowing in through the outdoor air outlet moves only to the outdoor air lower space, or the body rotates by a second angle so that the other side is coupled to the coupling groove and one side blocks the space between the outdoor air outlet and the outdoor air lower space so that outdoor air flowing in through the outdoor air outlet moves to the outdoor air upper space, or the body rotates by a third angle so that one side and the other side completely block the space connected to the outdoor air outlet, or the body rotates by a fourth angle so that one side and the other side completely open the space connected to the outdoor air outlet. Claim 9 A heat recovery ventilation device according to claim 8, wherein the above-mentioned outdoor air damper is characterized by having one side and the other side of the body bent at an angle of 120 degrees. Claim 10 delete Claim 11 In claim 7, the ventilation damper has a shape in which one side and the other side of the body are bent, and a central axis is coupled to a coupling groove formed on the ventilation upper / lower separating plate so that the body rotates, wherein the body rotates by a first angle so that one side is coupled to the coupling groove and the other side blocks the space between the ventilation port and the ventilation upper space so that indoor air entering through the ventilation port moves only to the ventilation lower space, or the body rotates by a second angle so that the other side is coupled to the coupling groove and one side blocks the space between the ventilation port and the ventilation lower space so that indoor air entering through the ventilation port moves to the ventilation upper space, or the body rotates by a third angle so that one side and the other side completely block the space connected to the ventilation port, or the body rotates by a fourth angle so that one side and the other side completely open the space connected to the ventilation port. Claim 12 A heat recovery ventilation device according to claim 11, wherein the ventilation damper is characterized in that one side and the other side of the body are bent at an angle of 120 degrees. Claim 13 A heat recovery ventilation device according to claim 1, wherein the heat recovery ventilation device further comprises an internal circulation damper installed between the ventilation zone and the outside zone to separate the ventilation zone and the outside zone into independent spaces or to change the ventilation zone and the outside zone into connected spaces. Claim 14 A heat recovery ventilation device according to claim 13, wherein the internal circulation damper has a plate shape that rotates with the ventilation upper / lower separation plate formed in the ventilation zone and the outside air upper / lower separation plate formed in the outside air zone as a central axis.

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