Ventilation apparatus

Abstract

A ventilation apparatus according to an embodiment of the present invention comprises: a housing in which an external air inlet and an internal air outlet are formed on one side surface and an internal air inlet and an external air outlet are formed on the other side surface facing the one side surface; an air purification module installed inside the housing and including a heat exchanger element which enables heat exchange between indoor air and outdoor air; and a filtering module mounted on the side surface of the housing in which the external air inlet is formed and filtering foreign substances contained in the outdoor air flowing into the external air inlet, wherein the filtering module includes a filtering case fixed to a side surface of the housing; a mesh coupled to the inside of the filtering case; a brush in contact with an outer surface or an inner surface of the mesh; and a motor connected to the brush to rotate the brush.

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] Specifically, the outdoor side of the ventilation device is provided with an outdoor air intake port through which outdoor air is drawn in, and an indoor air exhaust port through which indoor air is discharged to the outside. In particular, the outdoor air intake port is equipped with a foreign matter filtering device, as insects and foreign substances contained in the air are likely to be drawn into the room as outdoor air is drawn in.

[0004] As disclosed in the prior art below, the outdoor air inlet of the ventilation device is provided with an insect screen filter. Specifically, the conventional insect screen filter is detachably connected to the outdoor air inlet flange, and a foreign matter collection box is mounted at the bottom of the filter screen.

[0005] However, this type of filtering method has the following problems:

[0006] In other words, during the process of sucking in outside air, bugs and foreign substances can become stuck in the filter. To remove these foreign substances, the filter must be periodically removed from the filter frame, which is inconvenient. If the filter is not periodically removed and cleaned, it can become clogged, increasing the load on the suction fan module.

[0007] Additionally, in addition to the task of separating and emptying the collector, the filter must also be separated and cleaned, which may be inconvenient for the user.

[0008] Prior art: Publication No. 10-2023-0065577 (May 12, 2023)

[0009] The present invention is proposed to improve the above problems.

[0010] In order to achieve the above object, a ventilation device according to an embodiment of the present invention comprises: a housing 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 installed inside the housing and including a heat transfer element for allowing indoor air and outdoor air to exchange heat; and a filtering module mounted on a side of the housing where the outside air inlet is formed and filtering foreign substances contained in outdoor air flowing in through the outside air inlet; wherein the filtering module comprises: a filtering case fixed to a side of the housing; a mesh coupled inside the filtering case; a brush contacting an outer surface or an inner surface of the mesh; and a motor connected to the brush and rotating the brush.

[0011] The above filtering module further includes a cleaning fan that is disposed inside the filtering case corresponding to the rear of the mesh and is connected to the shaft of the motor and rotates together with the brush.

[0012] The filtering module further includes a reducer that connects the shaft of the motor and the brush so that the brush rotates at a lower speed than the rotation speed of the cleaning fan.

[0013] The above filtering module is installed at the rear end of the filtering case and further includes a motor frame that supports the motor.

[0014] The above filtering module is installed inside the filtering case and further includes a support frame through which the shaft of the motor passes.

[0015] The above filtering module further includes a collection box detachably coupled to the lower side of the filtering case.

[0016] The filtering case is characterized in that it includes an outer case fixed to a side of the housing and an inner case detachably inserted into the interior of the outer case, and the mesh, the brush, and the motor are accommodated inside the inner case.

[0017] According to the ventilation device according to the embodiment of the present invention having the above configuration, the brush operates periodically to cleanly separate insects or foreign substances caught in the mesh, so there is an advantage that there is no need to separate the filter and clean it.

[0018] In addition, since the cleaning fan operates together with the brush as it rotates to clean the mesh, insects and foreign substances caught in the mesh are separated and discharged to the outdoor space at the same time, which has the advantage of extending the replacement cycle of the capture box.

[0019] Figure 1 is a bottom perspective view of a ventilation device according to an embodiment of the present invention.

[0020] Figure 2 is an exploded perspective view of the ventilation device.

[0021] Figure 3 is a bottom view showing the internal configuration of the ventilation device.

[0022] Figure 4 is a cross-sectional perspective view of a ventilation device taken along line 4-4 of Figure 1.

[0023] Figure 5 is an exploded perspective view of a filtering module according to an embodiment of the present invention.

[0024] Figure 6 is an enlarged view of part A of Figure 5.

[0025] Hereinafter, a ventilation device according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0026] 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.

[0027] 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).

[0028] 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.

[0029] 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).

[0030] 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.

[0031] 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.

[0032] 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).

[0033] 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).

[0034] 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).

[0035] 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).

[0036] 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).

[0037] 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).

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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).

[0042] 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).

[0043] 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.

[0044] 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 internal discharge flange (174) (or the central axis of the internal discharge port). 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 internal discharge flange (174) may be designed to be perpendicular. In addition, an exhaust air flow transition space (1060) is formed between the exhaust fan module (20) and the internal discharge port (104).

[0045] 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.

[0046] 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 (BP). The bypass passage is formed between the middle case (13) and the lower case (14).

[0047] 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).

[0048] 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.

[0049] FIG. 5 is an exploded perspective view of a filtering module according to an embodiment of the present invention, and FIG. 6 is an enlarged view of part A of FIG. 5.

[0050] Referring to FIGS. 5 and 6, in order to prevent insects and foreign substances from entering the interior of the ventilation device (10) through the outside air inlet (101), a filtering module (60) that filters out insects and foreign substances may be mounted on the outside air inlet (101) or the outside air inlet flange (171).

[0051] In detail, the filtering module (60) includes an outer case (61), an inner case (62) detachably coupled to the outer case (61), and a collection box (63) detachably coupled to the inner case.

[0052] The above outer case (61) may be formed in a cylindrical shape with an inner diameter corresponding to the diameter of the external air inlet (101), and may be directly coupled to the side of the housing (11) to perform the function of the external air inlet flange (171).

[0053] Alternatively, the outer case (61) may be inserted into and joined to the outer or inner surface of the external air inlet flange (171).

[0054] An inner case insertion port (611) into which the inner case (62) is inserted is formed on the lower side of the outer case (61). The inner case insertion port (611) is formed on the lower side of the outer case (61), so that when the ventilation device (10) is installed on the ceiling, a user or a service technician can pull the inner case (62) downwards to separate it from the outer case (61). Of course, although not shown, a fastening means for detachably connecting the inner case (62) to the outer case (61) should be provided. The present invention pursues the idea that the inner case (62) is detachably connected to the outer case (61), and it is to be noted that various forms of attachment / detachment means can be applied to realize this idea.

[0055] The inner case (62) may be formed in a cylindrical shape, and a slit (621) is formed on the lower side through which the collection box (63) is drawn in and out. In addition, the collection box (63) is detachably connected to the inside of the inner case (62) through the slit (621).

[0056] A mesh (64) for filtering out foreign substances is installed inside the inner case (62). Specifically, the mesh (64) may be positioned adjacent to the front end of the inner case (62). Here, the rear end of the inner case (62) is defined as the end that is in close contact with the outside air inlet (101), and the front end is defined as the end opposite the rear end.

[0057] By installing the above mesh (64) at a point slightly spaced from the front end to the rear end of the inner case (62), the phenomenon of bugs or foreign substances that hit the mesh (64) and fall down accumulating on the inner surface floor of the inner case (62) can be minimized.

[0058] A brush (68) for separating foreign substances is mounted on the outer or inner surface of the mesh (64), and a rotation means for rotating the brush (68) is coupled to the center of the brush (68). The rotation means may include a motor (66) that generates rotational force, and a motor shaft (661) may be connected to the center of the brush (68).

[0059] If the brush (68) is in close contact with the outer surface of the mesh (64), the motor shaft (66) may penetrate the mesh (64) and be connected to the center of the brush (68). The brush (68) may be formed in the shape of a bar having a length corresponding to the outer diameter of the mesh (64).

[0060] Meanwhile, a cleaning fan (69) may be connected to the motor shaft (661). The cleaning fan (69) may be placed at the rear side of the mesh (64), that is, in the space between the mesh (64) and the rear end of the inner case (62). According to this structure, when power is applied to the motor (66), the cleaning fan (69) rotates at a set speed so that insects or foreign substances can be separated from the mesh (64). The wind forced by the cleaning fan (69) flows in a direction from the inside of the ventilation device (10) toward the outside.

[0061] In addition, since the brush (68) and the cleaning fan (69) are connected as one body by the motor shaft (661), when the brush (68) rotates and cleans the mesh (64), the cleaning fan (69) also rotates simultaneously to separate foreign substances from the mesh (64).

[0062] Meanwhile, a reduction gear (67) may be connected to the end of the motor shaft (661) that passes through the cleaning fan (69), and the brush (68) may be connected to a shaft extending from the reduction gear (67). Then, even if the motor (66) rotates at high speed, the brush (68) may rotate at a relatively slow speed to clean the mesh (64).

[0063] A motor frame (65) supporting the motor (66) may be installed at the rear end of the inner case (62). The motor frame (65) may be fixed to the inner surface of the inner case (64) by two bars intersecting in a cross shape, and the motor (66) may be coupled to the point where the two bars intersect. However, the motor (66) may be supported in a different form or by different means other than this fastening method.

[0064] In addition, a support frame (70) for supporting the motor shaft (661) may be further provided inside the inner case (62). In detail, the support frame (70) may also be provided in the form of two intersecting bars, similar to the motor frame (65), and the motor shaft (661) may be designed to penetrate the point where the two bars intersect.

[0065] The filtering module (60) according to the embodiment of the present invention having such a configuration can be controlled to operate for a set period of time at least at one of the points in time between the start of operation of the ventilation device (10) and the end of operation.

[0066] And, when the so-called mesh cleaning mode for cleaning the mesh (64) is executed, power is supplied to the motor (66) so that the cleaning fan (69) and the brush (68) rotate simultaneously. The rotation speed of the cleaning fan (69) is set higher than the rotation speed of the brush (68). Then, when foreign substances are separated from the mesh (64) as the brush (68) rotates, the foreign substances are discharged to the outside of the outer case (61) by the air flow generated by the cleaning fan (69).

[0067] In addition, the lower part of the capture box (63) can be exposed to the outside so that a user or service technician can easily separate the capture box (63) from the inner case (62).

[0068] As another example, it is also possible for the inner case (62) to be directly fixed to the side of the housing (11) without the outer case (61). In the previous embodiment, the combination of the outer case (61) and the inner case (62) may be defined as a filtering case, and in the present embodiment, the inner case (62) may be defined as a filtering case.

Claims

1. A housing 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 installed inside the housing and including a heat transfer element for allowing indoor air and outdoor air to exchange heat; and A filtering module is mounted on the side of the housing where the outdoor air inlet is formed, and filters out foreign substances contained in the outdoor air flowing in through the outdoor air inlet; The above filtering module, A filtering case fixed to the side of the above housing; A mesh incorporated inside the above filtering case; a brush contacting the outer or inner surface of the mesh; and A ventilation device including a motor connected to the brush and rotating the brush.

2. In paragraph 1, The above filtering module, A ventilation device further comprising a cleaning fan disposed inside the filtering case corresponding to the rear of the mesh and connected to the shaft of the motor and rotating together with the brush.

3. In paragraph 2, The above filtering module, A ventilation device further comprising a reducer that connects the shaft of the motor and the brush so that the brush rotates at a lower speed than the rotation speed of the cleaning fan.

4. In paragraph 3, The above filtering module, A ventilation device further comprising a motor frame that supports the motor and is installed at the rear end of the filtering case.

5. In paragraph 4, The above filtering module, A ventilation device further comprising a support frame installed inside the filtering case and through which the shaft of the motor passes.

6. In paragraph 5, The above filtering module, A ventilation device further comprising a collection box detachably coupled to the lower side of the above filtering case.

7. In paragraph 1, The above filtering case is, An outer case fixed to the side of the above housing, Including an inner case that can be detachably inserted into the inside of the above outer case, A ventilation device characterized in that the mesh, the brush, and the motor are accommodated inside the inner case.

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