Ventilation apparatus

Abstract

A ventilation apparatus according to an embodiment of the present invention comprises: a main case having an external air inlet port and an internal air discharge port formed in one side surface thereof, and an internal air inlet port and an external air exhaust port formed in the other surface facing the side surface; an air purifying module accommodated in the main case, and comprising an electric heating element; a suction fan module arranged in the main case and having an exhaust port connected to the external air exhaust port; an air discharge fan module arranged in the main case and having an exhaust port connected to the internal air discharge port; and a filtering kit which is attached to the other side surface of the main case, in which the external air inlet port is formed, and is in communication with the external air inlet port. The main case has formed therein: an indoor air exhaust flow path which is connected with the internal air inlet port, the air purifying module, the air discharge fan module, and the internal air discharge port; a bypass flow path connecting the internal air inlet port with the air discharge fan module; an outdoor air suction flow path which is connected with the external air inlet port, the air purifying module, the suction fan module, and the external air exhaust port; an air discharge flow switching space defined between the exhaust port of the air discharge fan module and the internal air discharge port; a bypass hole connecting the air discharge flow switching space with one end portion of the bypass flow path; and a sub-bypass hole connecting the other end portion of the bypass flow path with the outdoor air suction flow path.

Description

ventilation device

[0001] The present invention relates to a ventilation device.

[0002] A ventilation device is a device that discharges indoor air to the outside and supplies fresh outdoor air to the inside, and its main component is a heat transfer element that allows only heat exchange without mixing the discharged indoor air and the incoming outdoor air.

[0003] Recently, hybrid ventilation devices that can perform cooling functions in addition to ventilation functions through heat exchange have appeared.

[0004] The prior art below discloses an insect ingress prevention kit connected to an outdoor air intake side to prevent foreign substances, including insects, from entering the ventilation device.

[0005] These conventional ventilation devices have a disadvantage in that, although a separate kit is provided to capture foreign substances including dust and insects, the task of emptying the foreign substances captured in the kit must be performed separately by the user or a service person.

[0006] Additionally, because ventilation systems are typically installed high up, such as on veranda ceilings, users must climb a chair or ladder to remove the kit. This makes emptying the kit considerably more difficult, and carries a high risk of injury from falls during the process.

[0007] Prior art document: Korean Patent Publication No. 10-2023-0099471 (July 4, 2023)

[0008] The present invention is proposed to improve the above problems.

[0009] In order to achieve the above object, a ventilation device according to an embodiment of the present invention comprises: a main case having an outside air inlet and an inside air outlet formed on one side thereof, and an inside air inlet and an outside air outlet formed on the other side facing the one side thereof; an air purification module accommodated inside the main case and including a heat transfer element; an intake fan module disposed inside the main case and having an outlet connected to the outside air outlet; an exhaust fan module disposed inside the main case and having an outlet connected to the inside air outlet; and a filtering kit mounted on the other side of the main case where the outside air inlet is formed and communicating with the outside air inlet; wherein, inside the main case, there is provided an indoor air exhaust path connecting the inside air inlet, the air purification module, the exhaust fan module, and the inside air outlet; a bypass path connecting the inside air inlet and the exhaust fan module; an outdoor air intake path connecting the outside air inlet, the air purification module, the suction fan module, and the outside air outlet; It is characterized in that an exhaust flow conversion space is defined between the exhaust outlet of the exhaust fan module and the air outlet; a bypass hole connecting the exhaust flow conversion space and one end of the bypass path; and a sub-bypass hole connecting the other end of the bypass path and the outdoor air intake path are formed.

[0010] According to the ventilation device according to the embodiment of the present invention having the above configuration, a filtering kit for filtering foreign substances is installed in the outside air inlet of the ventilation device, thereby having the effect of preventing various foreign substances, including dust or insects, from penetrating into the interior of the ventilation device by the filtering kit.

[0011] Additionally, when the exhaust fan module is activated to remove foreign substances trapped in the filtering kit, indoor air flows in reverse along the bypass path and is discharged outdoors through the outdoor air intake port. This process allows foreign substances accumulated in the filtering kit to be discharged outside the ventilation system along with the exhausted indoor air, eliminating the need for separate cleaning of the filtering kit by the user or service personnel.

[0012] Figure 1 is a bottom perspective view of a ventilation device according to an embodiment of the present invention.

[0013] Figure 2 is an exploded perspective view of the ventilation device.

[0014] Figure 3 is a bottom view showing the internal configuration of the ventilation device.

[0015] Figure 4 is a cross-sectional perspective view of a ventilation device taken along line 4-4 of Figure 1.

[0016] Figure 5 is a bottom perspective view of a main case constituting a ventilation device according to an embodiment of the present invention.

[0017] Figure 6 is a bottom perspective view of a middle case constituting a main case of a ventilation device according to an embodiment of the present invention.

[0018] Figure 7 is a plan perspective view of the middle case.

[0019] Figure 8 is a bottom perspective view of an upper case constituting a main case of a ventilation device according to an embodiment of the present invention.

[0020] Figure 9 is a bottom view of the main case.

[0021] Figure 10 is a drawing showing the lower case separated from the bottom of the main case.

[0022] Fig. 11 is a perspective view of the bottom of the lower case.

[0023] Figure 12 is a bottom perspective view of a drain pan coupled to a lower case of a ventilation device according to an embodiment of the present invention.

[0024] Fig. 13 is a plan perspective view of the above drain pan.

[0025] FIG. 14 is a plan view showing a ventilation device according to an embodiment of the present invention with a filtering kit mounted on an outside air inlet.

[0026] Fig. 15 is a rear perspective view of a filtering kit according to an embodiment of the present invention.

[0027] Figure 16 is a cross-sectional view of a filtering kit cut along line 16-16 of Figure 15.

[0028] Figure 17 is a bottom perspective view of the middle case with a bypass hole formed.

[0029] Figure 18 is a perspective view showing the structure and operation of a switching damper module that selectively shields a bypass hole and a vent outlet.

[0030] FIG. 19 is a perspective view of a second damper unit showing a state in which a sub-bypass hole formed in the second damper unit is closed by a sub-damper unit according to an embodiment of the present invention.

[0031] Fig. 20 is a perspective view of the second damper unit showing the sub-bypass hole opened by the sub-damper unit.

[0032] Fig. 21 is a side view of the second damper unit with the sub-bypass hole open.

[0033] Figure 22 is a drawing showing the air flow occurring inside the ventilation device in foreign matter cleaning mode.

[0034] Hereinafter, a ventilation device according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0035] FIG. 1 is a bottom perspective view of a ventilation device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the ventilation device, FIG. 3 is a bottom view showing the internal configuration of the ventilation device, and FIG. 4 is a cross-sectional perspective view of the ventilation device taken along line 4-4 of FIG. 1.

[0036] Referring to FIGS. 1 to 4, the ventilation device (10) according to the embodiment of the present invention is mainly installed on the ceiling, so that the user mainly recognizes the bottom surface of the ventilation device (10).

[0037] And, as shown in Fig. 1, the user can open the cover provided on the bottom of the ventilation device (10) to separate or replace the air purification module.

[0038] In detail, a ventilation device (10) according to an embodiment of the present invention includes a hexahedral housing (11) having an outer shape and an open bottom surface, a shield cover (16) covering the opened bottom surface of the housing (11), and a plurality of duct flanges (17) each mounted on two opposing side surfaces of the housing (11).

[0039] An outdoor air inlet (101) and an indoor air outlet (104) are formed at both ends of one side of the housing (11), respectively. In addition, an indoor air inlet (103) and an outdoor air outlet (102) are formed at both ends of the other side of the housing (11) facing the one side, respectively.

[0040] And, the external air inlet (101) and the internal air inlet (103) are formed at positions facing each other, and the internal air outlet (104) and the external air discharge outlet (102) are formed at positions facing each other.

[0041] And, the outdoor air flowing into the outdoor air inlet (101) is discharged indoors through the outdoor air outlet (102) located diagonally, and the indoor air flowing into the indoor air inlet (103) is discharged outdoors through the indoor air outlet (104) located diagonally. This is because the outdoor air and the indoor air flow in directions intersecting each other when passing through the air purification module, which will be described later, among the components accommodated inside the housing (11).

[0042] Meanwhile, the duct flange (17) includes an outdoor air inlet flange (171) mounted on the outdoor air inlet port (101), an outdoor air discharge flange (172) mounted on the outdoor air discharge port (102), an indoor air inlet flange (173) mounted on the indoor air inlet port (103), and an indoor air exhaust flange (174) mounted on the indoor air discharge port (104).

[0043] Optionally, a heating device (50) may be mounted on the outside air outlet (102). When the heating device (50) is mounted on the outside air outlet (102), the outside air outlet flange (172) may be mounted on the outlet of the heating device (50).

[0044] In addition, the ventilation device (10) further includes a case accommodated inside the housing (11), and a lower cover (15) provided between the case and the shield cover (16) to cover the bottom surface of the case. A passage hole (151) through which an air purification module, which will be described later, passes is formed in the lower cover (15).

[0045] The above case includes a lower case (14), a middle case (13), and an upper case (12), and the combination of the upper case (12) and the middle case (13) can be defined as a main case (100). The lower cover (15) is mounted on the bottom surface of the lower case (14) and is shielded by the shield cover (16). In addition, the shield cover (16) is rotatably coupled to the housing (11) to selectively shield the shield cover (16).

[0046] The ventilation device (10) further includes an air purification module (40), a cooling module, and a fan module installed inside the case. The cooling module includes components that constitute a refrigerant cycle using a refrigerant as a circulating fluid, and includes at least an evaporator (21) through which a low-temperature, low-pressure two-phase refrigerant flows. In addition, the evaporator (21) may be located on the outlet side of the air purification module (40).

[0047] The above fan module includes an intake fan module (19) that sucks in outdoor air and discharges it indoors, and an exhaust fan module (20) that sucks in indoor air and discharges it outdoors. The fan module includes a fan and a motor that rotates the fan module.

[0048] The above suction fan module (19) can be placed at a point where the outside air outlet (102) is formed, so that the outlet of the suction fan module (19) and the outside air outlet (102) are connected. In addition, the exhaust fan module (20) can be placed at a point where the inside air outlet (104) is formed, so that the outlet of the exhaust fan module (20) and the inside air outlet (104) are connected.

[0049] The air purification module (40) includes a module frame (41) and a heat transfer element (42) accommodated inside the module frame (41). Optionally, the air purification module (40) may further include at least one of a HEPA filter (43), a pre-filter (44), and a light filter (45). The light filter (45) refers to a filter that removes harmful bacteria such as dust mites attached to the outdoor air sucked into the air purification module (40) or the pre-filter (44) by using ultraviolet rays from a UV lamp.

[0050] The above air purification module (40) is arranged in order from the side closest to the outside air inlet (101) with a light filter (45), a pre-filter (44), a HEPA filter (43), and a heating element (42), so that the outside air flowing in through the outside air inlet (101) passes through the light filter (45), the pre-filter (44), the HEPA filter, and the heating element (42) sequentially and is then supplied to the room through the outside air outlet (102).

[0051] Optionally, the ventilation device (10) may further include an air cleaning module (30), and the air cleaning module (30) may be arranged between the evaporator (21) and the air cleaning module (40), or between the evaporator (21) and the suction fan module (19). That is, the air cleaning module (40), the air cleaning module (30), and the evaporator (21) may be arranged on a path through which outdoor air flows, and the arrangement positions of these components may be appropriately selected depending on the structure of the case, particularly the main case (100).

[0052] The fan module may be a centrifugal fan that sucks in air in an axial direction and discharges it in a radial direction, but is not necessarily limited thereto. When the fan module is a centrifugal fan, the discharge port of the suction fan module (19) is directly connected to the outside air discharge port (102). Therefore, the central axis of the outside air discharge flange (172) passes through the center of the discharge port of the suction fan module (19). In another aspect, it can be described that the central axis of the outside air discharge flange (172) (or the central axis of the outside air discharge port) and the fan axis of the suction fan module (19) are orthogonal.

[0053] On the other hand, in order to compactify the ventilation device (10) or to secure space inside the main case (100) when the specifications of the housing (11) are determined, the fan shaft of the exhaust fan module (20) may be arranged parallel to the central axis (L1) of the exhaust discharge flange (174) (or the central axis of the exhaust outlet). That is, the line (L2) passing through the center of the discharge port of the exhaust fan module (20) and the central axis (L1) of the exhaust discharge flange (174) may be designed to be perpendicular. In addition, an exhaust air flow transition space (106) is formed between the exhaust fan module (20) and the exhaust discharge port (104).

[0054] In other words, the mounting position of the exhaust fan module (20) is designed so that the central axis of the exhaust outlet (104) and the rotation axis of the exhaust fan module (20) are parallel.

[0055] Meanwhile, inside the main case (100), an outdoor air passage through which outdoor air flows and an indoor air passage through which indoor air flows are formed in a direction in which they intersect each other. In addition, the air purification module (40) is placed at the point where the indoor air and outdoor air flows intersect. In addition, among the indoor air passages, a first damper unit (22) is installed on the indoor air passage connecting the indoor air inlet (103) and the air purification module (40). The first damper unit (22) allows indoor air flowing into the indoor air inlet (103) to selectively flow to either the air purification module (40) or a bypass passage (described later). The bypass passage is formed between the middle case (13) and the lower case (14), and this will be described in more detail below.

[0056] In addition, a second damper unit (23) is installed inside the main case (100) to switch the flow path so that indoor air flowing into the indoor inlet (103) and toward the bypass flow path flows to the outdoor air flow path where the evaporator (21) is installed. That is, the bypass flow path and the outdoor air flow path can be selectively connected by the second damper unit (23). Specifically, in a situation where rapid cooling is required, indoor air flowing into the indoor inlet (103) can pass through the evaporator (21) and then be discharged back into the room through the outdoor air discharge port (102) by the operation of the second damper unit (23).

[0057] Meanwhile, the ventilation device (10) further includes a control box (18) that controls the operation of various components accommodated inside the housing (11). The various components may include the fan module (19, 20), the damper unit (22, 23), the air cleaning module (30), and the light filter (45). In addition, the control box (18) may be mounted on the side of the housing (11), specifically, on the indoor side.

[0058] Figure 5 is a bottom perspective view of a main case constituting a ventilation device according to an embodiment of the present invention.

[0059] Referring to FIG. 5, the main case (100) can be understood as a combination of the upper case (12) and the lower case (13), as described above.

[0060] Inside the main case (100), an external air path and an internal air path are formed in an intersecting direction. An external air inlet (101) and an internal air outlet (104) are formed on one side of the main case (110), and an internal air inlet (103) and an external air outlet (102) are formed on the other side. Some of the four air passage holes (101 to 104) are formed on the side of the upper case (12), and the remaining some are formed on the side of the lower case (13). When the lower case (13) and the upper case (12) are combined, a completely circular hole is formed.

[0061] Inside the main case (100), a supply air introducing area (1001), a supply air discharge area (1002), an exhaust air introducing area (1003), an exhaust air exhausting area (1004), an air purification module mounting area (1005), a bypass guide area (1006), an exhaust air entrance area (1007), and the exhaust flow conversion space (1060) are each defined.

[0062] The air intake port (103) is formed on one side of the main case (100) defining the edge of the exhaust inlet area (1007), and a first damper hole (106) is formed on the side of the exhaust inlet area (1007) corresponding to the opposite side of the air intake port (103). Then, the first damper unit (22) is mounted in the first damper hole (106).

[0063] Additionally, one end of the bypass guide area (1006) is connected to a side of the exhaust inlet area (1007) where the first damper hole (106) is formed or a side orthogonal to a side where the intake port (103) is formed.

[0064] In addition, the air purification module mounting area (1005) is formed at a point where the supply air path and the exhaust air path intersect. The air purification module mounting area (1005) is formed with first to fourth sides being formed continuously in correspondence with the shape of the air purification module (40).

[0065] The above air inlet area (1001) is defined between the outside air inlet (101) and the first side of the air purification module mounting area (1005).

[0066] The exhaust inlet area (1003) is defined between the second side of the exhaust inlet area (1007) and the air purification module mounting area (1005). Then, the exhaust inlet area (1003) and the exhaust inlet area (1007) are selectively connected by the operation of the first damper unit (22).

[0067] The above bypass guide area (1006) connects the exhaust inlet area (1007) and the inlet of the bypass flow path, and the outlet of the bypass flow path is connected to the exhaust discharge area (1004). The first side and the second side are adjacent sides.

[0068] The above air supply discharge area (1002) is defined between the air supply discharge port (102) and the third side of the air purification module mounting area (1005). The second damper hole (107) is formed at the boundary surface of the air supply discharge area (1002) and the bypass guide area (1006). The bypass guide area (1006) and the air supply discharge area (1002) are selectively connected by the operation of the second damper unit (23). The third side is located opposite the first side.

[0069] In addition, the exhaust discharge area (1004) extends from the fourth side of the air purification module mounting area (1005) to the exhaust flow conversion space (1060). In addition, an exhaust fan mounting hole (105) is formed at the boundary surface dividing the exhaust discharge area (1004) and the air purification module mounting area (1005), and the exhaust fan module (20) discharge port is connected to the exhaust fan mounting hole (105).

[0070] The above exhaust fan mounting hole (105) and the air outlet (104) are formed on a vertical plane intersecting each other, so that indoor air flowing along the exhaust discharge area (1004) is discharged to the air outlet (104) after its flow direction is changed in the exhaust flow conversion space (1060).

[0071] The above exhaust discharge area (1004) and the above supply air discharge area (1002) are partitioned by a fluid separation wall, so that mixing of exhausted indoor air and incoming outdoor air is prevented.

[0072] The above exhaust fan module (20) is placed in the exhaust discharge area (1004), and the above suction fan module (19) is placed in the supply air discharge area (1002).

[0073] FIG. 6 is a bottom perspective view of a middle case constituting a main case of a ventilation device according to an embodiment of the present invention, and FIG. 7 is a plan perspective view of the middle case.

[0074] Referring to FIGS. 6 and 7, the middle case (13) includes a bottom surface (131) to which the top surface of the lower case (14) is coupled, an upper surface (132) to which the bottom surface of the upper case (12) is coupled, and a side surface (133) connecting the top surface (132) and the bottom surface (131).

[0075] The above side (133) includes a first side (133a), a second side (133b), a third side (133c), and a fourth side (133d). The first side (133a) and the third side (133c) face each other, and the second side (133b) and the fourth side (133d) face each other.

[0076] An external air inlet groove (1331) and an internal air discharge groove (1334) are formed on the first surface (133a), and an internal air inlet groove (1333) and an external air discharge groove (1332) are formed on the third surface (133c).

[0077] The above external air inlet groove (1331) forms half of the external air inlet port (101), and the above internal air discharge groove (1334) forms half of the internal air discharge port (104). The above internal air inlet groove (1333) forms half of the internal air inlet port (103), and the above external air discharge groove (1332) forms half of the external air discharge port (102).

[0078] An upper bypass groove (1311) is formed on the edge of the bottom surface (131) of the above middle case (13).

[0079] In detail, the inlet end (one end) of the upper bypass groove (1311), which forms part of the bypass path, is connected to the other end of the bypass guide area (1006). Indoor air flowing into the bypass guide area (1006) is guided to the upper bypass groove (1311) in a ventilation mode. In addition, the outlet end (the other end) of the upper bypass groove (1311) is connected to the exhaust discharge area (1004).

[0080] The upper bypass groove (1311) may be formed in an n-shape along the edge of the middle case (13) to surround the lower edge of the air supply discharge area (1002).

[0081] An extension arm (135) has a predetermined width and extends a predetermined length toward the first surface (133a) from an edge corresponding to the lower end of the second surface (133c) of the bottom surface (131) of the middle case (13). A flow guide wall (136) is formed at an end of the extension arm (135). The flow guide wall (136) extends a predetermined length from both side ends of the extension arm (135) toward the second surface (133b) and the fourth surface (133d), and extends a predetermined height toward the upper surface (132) of the middle case (131). The flow guide wall (136) may extend to the same height as the height of the side surface (133).

[0082] The above extension arm (135) separates the bottom surface of the bypass guide area (1006) and the bottom surface of the exhaust inlet area (1007). In another aspect, it can be explained that the bottom surface of the bypass guide area (1006) is reduced by the width of the extension arm (135).

[0083] A first damper mounting portion (1312) is recessed into the inner edge of the fourth surface (133d) corresponding to one side of the first damper hole (106) and into one side of the flow guide wall (136) corresponding to the other side of the first damper hole (106). Then, both sides of the first damper unit (22) are fitted into the first damper mounting portion (1312).

[0084] In addition, a second damper mounting portion (1313) is formed by recessing into the other side of the flow guide wall (136) corresponding to one side of the second damper hole (107) and into the inlet end of the upper bypass groove (1311) corresponding to the other side of the second damper hole (107). Then, both sides of the second damper unit (23) are fitted into the second damper mounting portion (1313).

[0085] The other end of the above-mentioned fluid guide wall (136) contacts one of the four corners of the air purification module (40) and supports one corner of the air purification module (40).

[0086] Meanwhile, a lower flow separation wall (134) extends from the inner edge of the outlet end of the upper bypass groove (1311). The lower flow separation wall (134) forms a lower portion of the flow separation wall.

[0087] A pipe receiving portion (1341) is formed stepwise upward on the lower surface of the lower flow separation wall (134). The organ (211) and the liquid pipe (212) extending from the evaporator (21) pass through the pipe receiving portion (1341). That is, the organ (211) and the liquid pipe (212) extend to the lower side of the lower flow separation wall (134).

[0088] Additionally, a pipe guide protrusion (137) protrudes from the inner surface of the first surface (133a). One side of the pipe guide protrusion (137) supports the side surface of the air purification module (40), and the other side forms a portion of the edge of the exhaust discharge area (1004).

[0089] A liquid pipe receiving groove (1371) and an organ receiving groove (1372) are formed on the lower surface of the above pipe guide jaw (137), respectively. The liquid pipe (212) and the organ (211) passing through the pipe receiving portion (1341) of the lower flow separation wall (134) extend along the organ receiving groove (1372) and the liquid pipe receiving groove (1371), respectively, and pass through the first surface (133a).

[0090] In addition, an air purification module support jaw (138) protrudes from the inner surface of the fourth surface (133d), and one side of the air purification module support jaw (138) supports the side of the air purification module (40), and the other side forms the edge of the exhaust inlet area (1003).

[0091] One side of the above air purification module support jaw (138) is formed to face one side of the above pipe guide jaw (137).

[0092] Meanwhile, a suction fan receiving groove (1323) is formed in a recessed manner on one side of the upper surface (132) of the middle case (13). The suction fan receiving groove (1323) is formed in a corner area where the second surface (133b) and the third surface (133c) meet. The outside air discharge groove (1332) formed on the third surface (133c) communicates with the suction fan receiving groove (1323).

[0093] In addition, an exhaust flow diversion surface (1322) defining a bottom surface of the exhaust flow diversion space (1060) is formed on the upper surface (132) corresponding to the corner area where the first surface (133a) and the second surface (133b) meet. In addition, an exhaust fan mounting wall defining one side of the flow diversion space (1060) is formed on the upper surface of the middle case (13), and an exhaust fan mounting groove (1321) is formed on the exhaust fan mounting wall. An exhaust discharge groove (1334) is formed on the first surface (133a). A line (L2) passing through the center of the exhaust fan mounting groove (1321) and a line (L1) passing through the center of the exhaust discharge groove (1334) are perpendicular to each other. That is, the indoor air flowing in through the exhaust fan mounting groove (1321) is turned 90 degrees and discharged to the outdoors through the exhaust discharge groove (1334).

[0094] FIG. 8 is a bottom perspective view of an upper case constituting a main case of a ventilation device according to an embodiment of the present invention, and FIG. 9 is a bottom perspective view of the main case.

[0095] Referring to Fig. 8, the upper case (12) is placed on the upper surface of the middle case (13) and covers the open areas formed on the inside of the middle case (13). In addition, protruding walls corresponding to the shape of the upper surface of the middle case (13) extend from the lower surface of the upper case (12).

[0096] In detail, the upper case (12) includes a bottom surface (121) that is in close contact with the upper surface of the middle case (13), an upper surface (122) that is the opposite surface of the bottom surface (121), and a side surface (123) that connects the bottom surface (121) and the upper surface (122).

[0097] And, the side surface (123) includes a first surface (123a), a second surface (123b), a third surface (123c), and a fourth surface (123d). The first surface (123a) forms the same surface as the first surface (133a) of the middle case (13), and the second surface (123a) forms the same surface as the second surface (133b) of the middle case (13). And, the third surface (123c) forms the same surface as the third surface (133c) of the middle case (13), and the fourth surface (123d) forms the same surface as the fourth surface (133d) of the middle case (13).

[0098] An external air inlet groove (1231) and an internal air discharge groove (1234) are formed on the first surface (123a). The external air inlet groove (1231) and the external air inlet groove (1331) of the middle case (13) are combined to form a complete external air inlet port (101). The internal air discharge groove (1234) and the internal air discharge groove (1334) of the middle case (13) are combined to form a complete internal air discharge port (104).

[0099] An internal air inlet groove (1233) and an external air discharge groove (1232) are formed on the third surface (123c). The internal air inlet groove (1233) and the internal air inlet groove (1333) of the middle case (13) are combined to form a complete internal air inlet port (103). The external air discharge groove (1232) and the external air discharge groove (1232) of the middle case (13) meet to form a complete external air discharge port (102).

[0100] A first air purification module support jaw (126) protrudes from the inner surface of the first surface (123a), and the first air purification module support jaw (126) is in close contact with the pipe guide jaw (137) of the middle case (13).

[0101] The flow diversion space (106) is formed by recessing in the lower edge area of ​​the upper case (12) where the exhaust discharge groove (1234) is formed. When the upper case (12) is coupled to the upper surface of the middle case (13), the exhaust flow diversion surface (1322) forms the lower surface of the flow diversion space (106).

[0102] And, an exhaust fan mounting wall (129) defining one side of the euro conversion space (106) is formed on the bottom surface of the upper case (12), and an exhaust fan mounting groove (1291) is formed in the exhaust fan mounting wall (129). And, the exhaust fan mounting groove (1321) of the middle case (13) and the exhaust fan mounting groove (1291) are combined to form a complete exhaust fan mounting hole (105: see FIG. 5).

[0103] An upper flow separation wall (124) extends diagonally from the bottom surface of the upper case (12) corresponding to the corner portion of the above-mentioned euro conversion space (106), and the upper flow separation wall (124) is in close contact with the lower flow separation wall (134) of the middle case (13) to complete a complete flow separation wall (see FIG. 5). The end portion of the flow separation wall functions as a module support wall that supports one corner of the air purification module (40).

[0104] On the lower surface of the upper case (12) corresponding to the upper surface directly above the air supply inlet area (1001), the air supply discharge area (1002), the exhaust inlet area (1003), the exhaust discharge area (104), the air purification module mounting area (1005), the bypass guide area (1006), and the exhaust inlet area (1007) formed in the middle case (13), an air supply inlet area (1001), an air supply discharge area (1002), an exhaust inlet area (1003), an exhaust discharge area (104), an air purification module mounting area (1005), a bypass guide area (1006), and an exhaust inlet area (1007) having the same shape and size are formed.

[0105] A flow guide wall (125) protrudes from the bottom surface of the upper case (12) and is in close contact with the flow guide wall (136) of the middle case (13). In addition, a first damper mounting portion (1212) is formed by being sunken in at a position corresponding to the first damper mounting portion (1312) of the middle case (13), and a second damper mounting portion (1213) is formed by being sunken in at a position corresponding to the second damper mounting portion (1313) of the middle case (13). That is, a first damper mounting portion (1212) is formed at one end of the flow guide wall (125), and a second damper mounting portion (1213) is formed at the other end.

[0106] Meanwhile, as shown in Fig. 3, the evaporator (21) is placed between the air purification module (40) and the suction fan module (19), the upper surface of the evaporator (21) is shielded by the upper case (12), and a drain pan (24), which will be described later, is placed on the lower surface.

[0107] Evaporator support ribs (127) protrude from the bottom surface of the upper case (12) corresponding to the two short-side edges among the upper surface edges of the evaporator (21).

[0108] Referring to Fig. 9, the two evaporator support ribs (127) protrude from the inlet-side edge point of the outside air discharge area (1002). Each of the evaporator support ribs (127) is formed in a form that is bent multiple times to wrap around the upper edge of the evaporator (21).

[0109] Meanwhile, the evaporator (21) includes an evaporator body (211) composed of an evaporation pipe and a heat exchange fin, and a support channel (212) mounted on a short side of the evaporator body (211) to support the evaporation pipe.

[0110] The above support channel (212) has a cross-sectional shape that is bent in an approximately n-shape, and a channel support wall (139b) that supports the support channel (212) may be formed on the inner edge of the inlet end of the upper bypass groove (1311). That is, one of the two support channels (212) is supported by the channel support wall (139b). The channel support wall (139b) is formed at a position adjacent to one of the two evaporator support ribs (127).

[0111] A channel support wall (139a) may also be formed at a point adjacent to another one of the two evaporator support ribs (127). In addition, an end of the other one of the two support channels (212) may be closely fixed to the channel support wall (139a).

[0112] Figure 10 is a drawing showing the lower case separated from the bottom of the main case, and Figure 11 is a perspective view of the bottom of the lower case.

[0113] Referring to FIGS. 10 and 11, the case of the ventilation device (10) according to an embodiment of the present invention includes a main case (100) and a lower case (14) coupled to the bottom surface of the main case (100). In detail, the main case (100) is defined as a combination of the upper case (12) and the lower case (13), and the lower case (14) is coupled to the bottom surface of the middle case (13).

[0114] The lower case (14), like the upper case (12) or the middle case (13), includes an upper surface (41), a lower surface (142), and a side surface (143), and the side surface (143) includes a first surface (143a), a second surface (143b), a third surface (143c), and a fourth surface (143d).

[0115] Each of the first to fourth surfaces (143a to 143d) above forms the same surface as each of the first to fourth surfaces (123a to 123d) of the upper case (12) and each of the first to fourth surfaces (133a to 133d) of the middle case (13).

[0116] On the upper surface of the lower case (14), a lower bypass groove (1411) is formed that is coupled to the upper bypass groove (1311) of the middle case (13), and the upper bypass groove (1311) and the lower bypass groove (1411) are coupled to complete a complete bypass path.

[0117] An air purification module insertion hole (145) and a drain pan mounting hole (144) are formed in the above lower case (14).

[0118] A module support wall (1415) extends from the upper surface (141) corresponding to one edge of the air purification module insertion hole (145), and the module support wall (1415) touches the lower surface of the end of the flow separation wall. In detail, when the lower case (14) is coupled to the lower surface of the middle case (13), the module support wall (1415) touches the lower surface of the end of the lower flow separation wall (134) of the middle case (13). Here, the end of the module support wall (1415) touches a portion other than the pipe receiving portion (1341), and thus does not interfere with the organ (211) and the liquid pipe (212) passing through the pipe receiving portion (1341).

[0119] And, at a certain point of the upper surface (141) corresponding to the direct lower side of the pipe receiving portion (1341), a pipe receiving groove (1414) is formed to receive the liquid pipe (212) and the organ (211).

[0120] An organ receiving groove (1413) and a liquid pipe receiving groove (1412) are formed in a recessed manner on the upper side of the first surface (143a) of the lower case (14) corresponding to the first surface (133a) of the middle case (13), and are coupled to the liquid pipe receiving groove (1371) and the organ receiving groove (1372) of the middle case (13).

[0121] Meanwhile, a drain pipe receiving groove (1421) is formed in a sunken manner on the bottom surface of the lower case (14), one end of the drain pipe receiving groove (1421) is connected to the drain pan mounting hole (144), and the other end extends to the side surface (143) of the lower case (14). For example, the other end of the drain pipe receiving groove (1421) may extend to the first surface (143a).

[0122] FIG. 12 is a bottom perspective view of a drain pan coupled to a lower case of a ventilation device according to an embodiment of the present invention, and FIG. 13 is a plan perspective view of the drain pan.

[0123] Referring to FIGS. 12 and 13, the drain pan (24) of the ventilation device (10) according to the embodiment of the present invention is coupled to the drain pan mounting hole (144) formed in the lower case (14) to shield the drain pan mounting hole (144).

[0124] The evaporator (21) is placed on the upper surface of the drain pan (24), and the condensate flowing from the evaporator (21) is collected in the drain pan (24).

[0125] In detail, the drain pan (24) includes an evaporator mounting portion (241), a condensate collecting portion (242) formed at one end of the evaporator mounting portion (241), and a drain port (243) extending from one edge of the condensate collecting portion (242).

[0126] The above drain pan (24) is composed of a bottom portion (24a) where condensate falls and a side portion (24b) erected along the edge of the bottom portion (24a), and the drain port (243) can protrude a predetermined length from the side portion (24b).

[0127] A plurality of flow guides (244) protrude from the bottom portion (24a) so that condensate flowing from the evaporator (21) can be guided toward the drain port (243). The drain port (243) is connected to the drain pipe receiving groove (1421) of the lower case.

[0128] Below, a filtering kit that prevents foreign substances from entering through an outside air inlet (101) and a method for emptying foreign substances captured in the filtering kit are described in detail with reference to the drawings.

[0129] FIG. 14 is a plan view showing a ventilation device according to an embodiment of the present invention in which a filtering kit is mounted on an outside air inlet.

[0130] Referring to Fig. 14, a filtering kit (70) according to an embodiment of the present invention for filtering out foreign substances is mounted on an outside air inlet (101) of a ventilation device (10). In addition, an outside air inlet flange (171) is mounted on the suction side of the filtering kit (70). Accordingly, outside air is introduced into the air purification module (40) through the outside air inlet flange (171) and the filtering kit (70).

[0131] In detail, according to an embodiment of the present invention, a forced flow of indoor air is required to empty foreign substances captured in the filtering kit (70) to the outside. To this end, a bypass hole (1314) is formed at a point corresponding to one end of the bypass path, specifically, at the end of the upper bypass groove (1311) formed in the middle case (13).

[0132] The above bypass hole (1314) communicates with the exhaust flow conversion space (1060: see FIG. 4). That is, the above bypass hole (1314) is formed by cutting a portion of the upper bypass groove (1311) defining the lower surface of the exhaust flow conversion space (1060) when the ventilation device (10) is installed indoors.

[0133] In addition, a switching damper module (60) is installed in the exhaust flow conversion space (1060), so that the bypass hole (1314) and the exhaust outlet (104) are selectively opened and closed. That is, in the general operation mode of the ventilation device (10), the bypass hole (1314) is blocked by the switching damper module (60) and the exhaust outlet (104) is opened. On the other hand, in the so-called foreign substance cleaning mode or foreign substance removal mode for removing foreign substances captured in the filtering kit (70), the bypass hole (1314) is opened and the exhaust outlet (104) is blocked by the switching damper module (60).

[0134] In addition, a sub-damper unit (25) is installed in the second damper unit (23) to allow the bypass path and the air purification module (40) to be fluidly connected. In addition, the first damper unit (22) operates to allow indoor air to flow into the air purification module (40).

[0135] FIG. 15 is a rear perspective view of a filtering kit according to an embodiment of the present invention, and FIG. 16 is a longitudinal cross-sectional view of the filtering kit taken along line 16-16 of FIG. 15.

[0136] Referring to FIGS. 15 and 16, a filtering kit (70) according to an embodiment of the present invention includes a filter frame (71) and a filter (72) coupled to the inside of the filter frame (71).

[0137] The above filter frame (71) may be formed in a flat hexahedral shape as shown, but is not limited thereto and may also be formed in a polygonal cylinder or cylindrical shape.

[0138] The above filter frame (71) includes a hexahedral frame body (711), a rear opening (712) formed on the rear surface of the frame body (711), and a front opening (713) formed on the front surface of the frame body (711).

[0139] The above rear opening (712) may be formed in the same shape as the shape of the outside air inlet (101), and the above front opening (713) may be formed in the same shape as the shape of the outlet end of the above outside air inlet flange (171).

[0140] In detail, the filter (72) may be mounted on the front surface of the filter frame (71) corresponding to the boundary surface of the outside air inlet flange (171) and the filter frame (71). The filter (72) is made of a mesh net, and support ribs may be provided in a grid shape to prevent sagging of the filter.

[0141] A plurality of fastening flanges (714) may be extended from the rear edge of the frame body (711), and a plurality of flow guide surfaces (715) may be formed inside the frame body (711). The plurality of flow guide surfaces (715) may be formed to be inclined at the corner portions of the frame body (711), and may be inclined in a form that expands from the rear surface to the front surface of the frame body (711). According to this structure, the outdoor air introduced through the outdoor air inlet flange (171) flows along the flow guide surfaces and is concentrated at the outdoor air inlet (101), which has the advantage of reducing flow loss. In addition to a structure in which the flow guide surface (715) is formed only at the inner corner portions of the frame body (711), it may also be formed in the shape of a truncated cone.

[0142] In addition, when the filtering kit (70) is installed in the outside air inlet (101), the air purification module (40) may not include the pre-filter (44).

[0143] The above filter (72) is installed at the boundary surface of the outside air inlet flange (171) and the frame body (711), so that foreign substances introduced through the outside air inlet flange (171) accumulate at the bottom of the outside air inlet flange (171). In other words, the phenomenon of foreign substances being introduced into the inside of the frame body (711) does not occur.

[0144] And, when the foreign substance cleaning mode for discharging foreign substances starts, the exhaust fan module (20) operates to force indoor air to flow toward the outdoor air intake flange (171). Then, foreign substances accumulated on the bottom of the outdoor air intake flange (171) are discharged together with indoor air discharged to the outside through the outdoor air intake flange (171), and foreign substances stuck in the filter (72) are separated, so that the filter (72) is cleaned.

[0145] Figure 17 is a bottom perspective view of the middle case with a bypass hole formed.

[0146] Referring to FIG. 17, as described above, the bypass hole (1314) is formed at one end of the upper bypass groove (1311) defining a portion of the bypass path.

[0147] In detail, the bypass hole (1314) is formed by cutting a portion of the upper bypass groove (1311) forming the exhaust flow conversion space (1060). Then, when the foreign matter cleaning mode starts, the indoor air forced to flow by the exhaust fan module (20) flows backward along the bypass path through the bypass hole (1314) and toward the bypass guide area (1006).

[0148] Figure 18 is a perspective view showing the structure and operation of a switching damper module that selectively shields a bypass hole and a vent outlet.

[0149] Figure 18 (a) shows a state in which the switching damper module (60) blocks the exhaust outlet (104) and opens the bypass hole (1314), (c) shows a state in which the switching damper module (60) blocks the exhaust outlet (104) and opens the bypass hole (1314), and (b) shows an operation for switching the state of the switching damper module (60).

[0150] In detail, the switching damper module (60) includes a fixed bracket (65), a damper motor (61) mounted on the fixed bracket (65), a link (62) of which one end is connected to a rotational shaft of the damper motor (61), a switching damper (63) rotatably connected to the fixed bracket (65), and a guide rail (64) that guides movement of the switching damper (63).

[0151] The above fixed bracket (65) is fixed to one side of the middle case (13) corresponding to the edge of the bypass hole (1314), and the guide rail (64) is erected on the inner edge of the exhaust flow conversion space (1060).

[0152] In addition, the switching damper (63) includes an upper damper (631) having one end rotatably connected to the fixed bracket (65), a lower damper (632) having one end rotatably connected to the other end of the upper damper (631), a damper hinge (633) connecting the upper damper (631) and the lower damper (632), and a damper guide (634) extending from the edge of the other end of the lower damper (632) and fitted into the guide rail (64).

[0153] The upper damper (631) and the damper motor (61) may be fixed to one side of the middle case (13) corresponding to the edge of the bypass hole (1314), and in this case, the fixing bracket (65) may not be necessary.

[0154] And, the other end of the link (62) is connected to the upper damper (631), so that as the damper motor (61) rotates, the link (62) rotates around the rotational axis of the damper motor (61) to raise or lower the upper damper (631).

[0155] As shown in (b) of Fig. 18, as the link (62) rotates and the other end of the upper damper (631) rises, the damper guide (634) rises along the guide rail (64). Then, the lower damper (632) rotates around the damper hinge (633), causing the switching damper (63) to fold into a horizontal state.

[0156] When the above switching damper (63) is folded to the maximum, the bypass hole (1314) is closed by the upper damper (631), and when the above switching damper (63) is fully unfolded, the inside exhaust outlet (104) is closed.

[0157] And, when the foreign matter cleaning mode is selected, the switching damper (63) is maintained in a fully extended state, so that the air forced by the exhaust fan module (20) flows into the bypass path through the bypass hole (1314).

[0158] FIG. 19 is a perspective view of a second damper unit showing a state in which a sub-bypass hole formed in the second damper unit is closed by a sub-damper unit according to an embodiment of the present invention, FIG. 20 is a perspective view of the second damper unit showing a state in which a sub-bypass hole is opened by the sub-damper unit, and FIG. 21 is a side view of the second damper unit showing a state in which the sub-bypass hole is open.

[0159] Referring to FIGS. 19 to 21, the second damper unit (23) includes a damper frame (232) having the second damper hole (107) defined on the inside, a damper motor (231) mounted on one edge of the damper frame (232), and a second damper (233) that opens and closes the second damper hole (107) while rotating by the damper motor.

[0160] The second damper hole (107) described in Fig. 5 is described as a hole that accommodates the second damper unit (23), but can be viewed as a concept of a communication hole that fluidly connects the bypass guide area (1006) and the area where the air purification module (40) or the evaporator (21) is installed. Accordingly, it should be noted that the opening formed on the inside of the damper frame (232) can be viewed as having the same concept as the damper hole (107). That is, the hole that is selectively opened and closed by the second damper unit (23) can be understood to be the damper hole (107).

[0161] Meanwhile, a sub-bypass hole (2331) is formed in the second damper (233), and the sub-bypass hole (2331) is selectively opened and closed by the sub-damper unit (25).

[0162] In detail, the sub-damper unit (25) includes a fixed bracket (254) that is attached to one side of the second damper (233) corresponding to the edge of the sub-bypass hole (2331), a sub-damper motor (251) mounted on the fixed bracket (254), a link (252) of which one end is connected to the rotational axis of the sub-damper motor (251), and a sub-damper (253) of which one end is rotatably connected to the fixed bracket (254) and the other end of the link (252) is connected.

[0163] Here, the sub-damper (253) is rotatably connected to one edge of the sub-bypass hole (2331), and the sub-damper motor (251) is fixed to the third damper (233), so the fixing bracket (253) may not be necessary.

[0164] When the foreign matter cleaning mode is selected, as shown in FIGS. 20 and 21, the sub-damper motor (251) operates while the second damper (233) closes the second damper hole (107). Then, the sub-damper (253) rotates to open the sub-bypass hole (2331), thereby fluidly connecting the bypass guide area (1006) and the air purification module (40) to each other.

[0165] Figure 22 is a drawing showing the air flow occurring inside the ventilation device in foreign matter cleaning mode.

[0166] Referring to Fig. 22, when the foreign matter cleaning mode is executed to clean foreign matter accumulated in the filtering kit (70), the first damper unit (22) opens the first damper hole (106). Then, the sub-damper unit (25) operates to open the sub-bypass hole (2331). In addition, the switching damper module (60) operates to close the exhaust outlet (104) and open the bypass hole (1314).

[0167] In this state, the exhaust fan module (20) operates, so that indoor air is introduced into the air purification module (40) through the intake flange (173), and the indoor air passing through the air purification module (40) is guided to the exhaust flow conversion space (1060) by the exhaust fan module (20).

[0168] Indoor air guided to the exhaust flow conversion space (1060) passes through the bypass hole (1314) and flows into the bypass path. Indoor air flowing along the bypass path reaches the bypass guide area (1006), and indoor air guided to the bypass guide area (1006) passes through the sub-bypass hole (2331) and then flows into the air purification module (40).

[0169] And, the indoor air that has passed through the air purification module (40) is discharged outdoors while sequentially passing through the outdoor air inlet (101), the filtering kit (70), and the outdoor air inlet flange (171). And, when the indoor air is discharged outdoors, foreign substances accumulated on the bottom of the outdoor air inlet flange (171) and foreign substances caught in the filter (72) are discharged outdoors.

[0170] Meanwhile, in order to separate foreign substances stuck in the filter (72) and to quickly discharge foreign substances accumulated inside the outside air inlet flange (171) to the outside, the exhaust fan module (20) can be controlled to rotate at high speed for a set period of time.

[0171]

Claims

1. A main case having an external air inlet and an internal air outlet formed on one side, and an internal air inlet and an external air outlet formed on the other side facing said one side; An air purification module housed inside the main case and including a heating element; A suction fan module disposed inside the main case and having an exhaust port connected to the outside exhaust port; An exhaust fan module disposed inside the main case and having an exhaust outlet connected to the exhaust outlet; A filtering kit is mounted on the other side of the main case where the external air inlet is formed and communicates with the external air inlet; Inside the above main case, An indoor air exhaust path connecting the above-mentioned intake port, the air purification module, the exhaust fan module, and the above-mentioned exhaust port; A bypass path connecting the above-mentioned betting inlet and the above-mentioned exhaust fan module; An outdoor air intake path connecting the outdoor air inlet, the air purification module, the suction fan module, and the outdoor air outlet; An exhaust flow transition space defined between the exhaust outlet of the above exhaust fan module and the exhaust outlet of the above exhaust fan module; A bypass hole connecting the exhaust flow conversion space and one end of the bypass path; and A ventilation device characterized in that a sub-bypass hole is formed to connect the other end of the above bypass path and the above outdoor air intake path.

2. In paragraph 1, A ventilation device further comprising a switching damper module provided in the exhaust flow conversion space to selectively open and close the exhaust outlet and the bypass hole.

3. In paragraph 2, A ventilation device, characterized in that in a mode of removing foreign substances captured in the filtering kit, the switching damper module operates to open the bypass hole and close the exhaust outlet.

4. In paragraph 3, The above switching damper module, With damper motor, First, a link connected to the rotation shaft of the above damper motor, A ventilation device comprising a switching damper, one end of which is rotatably connected to an edge of the bypass hole and the other end of the link is connected.

5. In paragraph 4, The above switching damper is, First, an upper damper rotatably connected to the edge of the above bypass hole, Including a lower damper rotatably connected to the other end of the upper damper, A ventilation device, characterized in that the other end of the above link is connected to the upper damper.

6. In paragraph 5, The above switching damper module, A damper guide extending from the side end of the above lower damper, A ventilation device further comprising a guide rail installed on the side of the above switching damper and to which the damper guide is slidably connected.

7. In paragraph 6, The above switching damper is, Close the above betting outlet in a fully expanded state, A ventilation device characterized in that the bypass hole is closed in a completely folded state.

8. In paragraph 3, A first damper unit selectively opening and closing a passage connecting the air intake port and the air purification module among the indoor air exhaust passages; and It further includes a path connecting the other end of the above-mentioned betting inlet and the above-mentioned bypass path, and a second damper unit arranged at the boundary portion of the above-mentioned outdoor air intake path, A ventilation device characterized in that the second damper unit operates to cause indoor air sucked in through the air intake port to flow to either the bypass path or the outdoor air intake path.

9. In paragraph 8, The above second damper unit, A damper frame having a damper hole formed on the inside, A damper rotatably connected to the above damper frame, Including a damper motor that rotates the above damper, A ventilation device characterized in that the sub-bypass hole is formed in the damper.

10. In paragraph 9, A ventilation device further comprising a sub-damper unit for selectively opening and closing the above sub-bypass hole.

11. In Article 10, The above sub-damper unit, A sub-damper rotatably connected to the edge of the above sub-bypass hole, A sub-damper motor that drives the above sub-damper, A ventilation device including a link connecting the rotation shaft of the sub-damper motor and the sub-damper.

12. In any one of paragraphs 1 to 11, The above filtering kit, A filter frame having a back surface coupled to the above-mentioned external air inlet; and A filter is included that is coupled to the front of the above filter frame, A ventilation device characterized in that an outside air intake flange is coupled to the front of the above filter frame.

13. In paragraph 12, A back opening communicating with the outside air inlet is formed on the back surface of the above filter frame, A ventilation device characterized in that a front opening communicating with the outside air inlet flange is formed on the front of the filter frame.

14. In paragraph 13, A ventilation device characterized in that a flow guide surface is formed inclined inside the filter frame.

15. In paragraph 11, When the mode for removing foreign substances captured in the above filtering unit and the outside air inlet flange is executed, The above exhaust fan module is in operation, The above first damper unit operates, and the indoor air sucked in through the intake port passes through the air purification module and is sucked into the exhaust fan module. The indoor air sucked into the above exhaust fan module is After passing through the exhaust flow conversion space, the bypass hole, the bypass path, and the sub-bypass hole in sequence, it flows into the air purification module. A ventilation device characterized in that air introduced into the air purification module passes through the filtering kit and the outside air intake flange sequentially and is discharged outdoors.

Images