Ventilation System

Abstract

The present invention relates to a heat recovery ventilation device. A ventilation device according to an embodiment of the present invention comprises a case into which outdoor air and indoor air are introduced, a heat exchanger disposed inside the case for heat exchange between the outdoor air and the indoor air, and a door having a rotating shaft disposed inside the case that opens and closes the lower side of the case so that the heat exchanger can be separated to the lower side of the case.

Description

Technology Field

[0001] The present invention relates to a ventilation device, and more specifically, to a heat recovery ventilation device. Background Technology

[0002] A ventilation system is a device that exhausts contaminated indoor air to the outside and supplies fresh outdoor air into the room, thereby maintaining the freshness of the indoor air at a certain level.

[0003] General households commonly use heat recovery ventilation systems to reduce energy loss by recovering waste heat, and these systems are equipped with a heat exchanger that exchanges heat between contaminated indoor air and fresh outdoor air to recover waste heat.

[0004] For maintenance of such ventilation systems, the heat exchanger or filter must be removed after opening the lower door. Ventilation systems installed on the ceiling of utility rooms, laundry rooms, or outdoor unit rooms may have washing machines, dryers, refrigerators, outdoor units, or various other items located underneath. Accordingly, it is required that the door be opened easily and safely. The problem to be solved

[0005] The problem that the present invention aims to solve is to provide a ventilation device in which the door is opened easily and safely.

[0006] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0007] To achieve the above objective, a ventilation device according to an embodiment of the present invention comprises a case into which outdoor air and indoor air are introduced, a heat exchanger disposed inside the case for heat exchange between the outdoor air and the indoor air, and a door that opens and closes the lower side of the case so that the heat exchanger can be separated to the lower side of the case, and a rotating shaft disposed inside the case.

[0008] To achieve the above objective, a ventilation device according to an embodiment of the present invention comprises a case into which outdoor air and indoor air are introduced, a heat exchanger disposed inside the case for heat exchange between the outdoor air and the indoor air, and a door that opens and closes the lower side of the case and has a controlled opening speed so that the heat exchanger can be separated to the lower side of the case.

[0009] Specific details of other embodiments are included in the detailed description and drawings. Effects of the invention

[0010] According to the ventilation device of the present invention, one or more of the following effects are provided.

[0011] First, the door's center of rotation is located inside the case, which has the advantage of minimizing the space required for the door to open.

[0012] Second, the door's rotation speed is controlled by the damper, which has the advantage of allowing the door to open safely.

[0013] Third, the door opening button has the advantage of securely locking the door while also being convenient to operate.

[0014] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0015] FIG. 1 is a perspective view of a ventilation device according to one embodiment of the present invention. FIG. 2 is an exploded perspective view of a ventilation device according to one embodiment of the present invention. FIG. 3 is a drawing showing the door of a ventilation device according to one embodiment of the present invention being opened and a part being removed. FIG. 4 is an internal structural diagram of a ventilation device according to one embodiment of the present invention. FIG. 5 is a partially exploded perspective view of a ventilation device according to one embodiment of the present invention. FIG. 6 is an exploded perspective view of a door of a ventilation device according to one embodiment of the present invention. FIG. 7 is a partial cross-sectional view of a ventilation device according to one embodiment of the present invention when the door is closed. FIG. 8 is a partial cross-sectional view of a ventilation device according to one embodiment of the present invention when the door is opened. Specific details for implementing the invention

[0016] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0017] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another, and unless specifically stated otherwise, the first component may also be the second component.

[0018] Throughout the specification, unless specifically stated otherwise, each component may be singular or plural.

[0019] In the following, the statement that any configuration is placed on the "upper (or lower)" of a component or on the "upper (or lower)" of a component may mean not only that any configuration is placed in contact with the upper (or lower) surface of said component, but also that another configuration may be interposed between said component and any configuration placed on (or below) said component.

[0020] In addition, where it is stated that one component is "connected," "combined," or "connected" to another component, it should be understood that while the components may be directly connected or connected to each other, another component may be "interposed" between each component, or each component may be "connected," "combined," or "connected" through another component.

[0021] Singular expressions used in this specification include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "composed of" or "comprising" should not be interpreted as necessarily including all of the various components or steps described in the specification, and should be interpreted as meaning that some of the components or steps may be omitted or additional components or steps may be included.

[0022] Throughout the specification, "A and / or B" means A, B, or A and B unless specifically stated otherwise, and "C to D" means C or more and D or less unless specifically stated otherwise.

[0023] Hereinafter, the present invention will be described with reference to the drawings for explaining a ventilation device according to embodiments of the present invention.

[0024] FIG. 1 is a perspective view of a ventilation device according to one embodiment of the present invention, FIG. 2 is an exploded perspective view of a ventilation device according to one embodiment of the present invention, FIG. 3 is a drawing showing the removal of a part of a ventilation device according to one embodiment of the present invention, and FIG. 4 is an internal structure diagram of a ventilation device according to one embodiment of the present invention.

[0025] A ventilation device according to one embodiment of the present invention comprises: a case (110) that forms an exterior and into which outdoor air and indoor air are introduced; a door (130) that is rotatably coupled to the lower side of the case (110); a case cover (120) that covers the upper surface of the case (110); an exhaust fan (164) that is disposed inside the case (110) and discharges air to the outside; a supply fan (162) that is disposed inside the case (110) and discharges air to the indoors; a heat exchanger (190) that is disposed in the center inside the case (110) and exchanges heat between the outdoor air and the indoor air; a control box (149) that is disposed inside the case (110) and controls the exhaust fan (164) and the supply fan (162); and a control box cover (141) that is coupled to the case (110) and covers the control box (149).

[0026] The case (110) is approximately rectangular in shape and forms the exterior of the ventilation device. The case (110) has an internal air passage and a space for installing various components. The case (110) includes an upper case (110a) forming the upper part and a lower case (110b) forming the lower part.

[0027] The case (110) has four air passages formed inside. Referring to FIG. 4, inside the case (110), there is an outside air passage (111) through which air (outdoor air) introduced from the outside flows, an exhaust passage (114) through which air discharged to the outside flows, a ventilation passage (113) through which air (indoor air) introduced from the inside flows, and a supply air passage (112) through which air discharged to the inside flows.

[0028] The case (110) has a central storage space (118) formed therein, which is a space for housing a heat exchanger (190), an outside air filter (181), and a ventilation filter (183). The central storage space (118) is arranged surrounded by an outside air passage (111), an exhaust passage (114), a ventilation passage (113), and a supply air passage (112). Referring to FIG. 3, the lower side of the central storage space (118) is open so that when the door (130) is opened, the heat exchanger (190), the outside air filter (181), and the ventilation filter (183) can be separated downwards.

[0029] The case (110) has an outer storage space (119) formed on the outer side, which is a space that is recessed to accommodate a control box (149). The outer storage space (119) is positioned between the outside air passage (111) and the ventilation passage (113). Referring to FIG. 3, the outer storage space (119) is open at the bottom so that when the door (130) is opened, the control box (149) and the control box cover (141) can be separated downwards.

[0030] Inside the case (110), an exhaust fan (164), a supply fan (162), an outside air damper (171), a ventilation damper (173), a bypass damper (175), a circulation damper (176), an exhaust damper (174), and a supply air damper (172) are arranged. On the outer side of the case (110), an outside air flange (151), a ventilation flange (153), an exhaust flange (154), a supply air flange (152), and a control box cover (141) are arranged. A case cover (120) is arranged on the upper side of the case (110), and a door (130) is arranged on the lower side.

[0031] The case cover (120) covers the upper surface of the case (110) and forms the upper surface of the exterior. The case cover (120) is in the shape of a rectangular plate and is attached to the upper side of the case (110). An insulating material may be provided between the case cover (120) and the case (110).

[0032] The door (130) opens and closes the lower side of the case (110). When closed, the door (130) completely covers the lower side of the case (110), and when open, it completely exposes the lower side of the case (110). The door (130) opens and closes the open lower side of the central storage space (118), so that when opened, the heat exchanger (190), the outside air filter (181), and the ventilation filter (183) can be separated to the lower side. The door (130) opens and closes the open lower side of the outer storage space (119), so that when opened, the control box (149) and the control box cover (141) can be separated to the lower side.

[0033] The door (130) may be provided in multiple numbers, and in this embodiment, the door (130) includes a left door (130a) positioned on the side of the outside air flange (151) and exhaust flange (154), and a right door (130b) positioned on the side of the ventilation flange (153) and supply air flange (152).

[0034] An exhaust fan (164) is positioned in the exhaust passage (114) at the left rear inside the case (110). The exhaust fan (164) discharges indoor air, which has been heat-exchanged in the heat exchanger (190) after being introduced through the ventilation flange (153), to the outside. An exhaust damper (174) is positioned at the discharge port of the exhaust fan (164). The discharge port of the exhaust fan (164) is connected to the exhaust flange (154). A circulation damper (176) is provided in front of the exhaust fan (164), and a supply fan (162) is positioned to the right of the exhaust fan (164).

[0035] The supply fan (162) is positioned in the supply air passage (112) at the right rear inside the case (110). The supply fan (162) discharges outdoor air into the room after it has been heat-exchanged in the heat exchanger (190) following inflow through the outside air flange (151). A supply air damper (172) is positioned at the discharge port of the supply fan (162). The discharge port of the supply fan (162) is connected to the supply air flange (152). A bypass damper (175) is provided in front of the supply fan (162), and an exhaust fan (164) is positioned to the left of the supply fan (162).

[0036] The heat exchanger (190) is placed in the central storage space (118) in the center of the case (110). The heat exchanger (190) is placed surrounded by an outside air passage (111), an exhaust passage (114), a ventilation passage (113), and a supply air passage (112). An outside air filter (181) is placed on the front left side of the heat exchanger (190), a ventilation filter (183) is placed on the front right side, an exhaust fan (164) is placed on the rear left side, and a supply air fan (162) is placed on the rear right side. The heat exchanger (190) can be removed to the lower side of the case (110) when the door (130) is opened.

[0037] The heat exchanger (190) exchanges heat between outdoor air flowing from the outside air path (111) to the supply air path (112) and indoor air flowing from the ventilation path (113) to the exhaust path (114). The heat exchanger (190) includes a plurality of liners and a plurality of spacers formed by crossing a plurality of paths so that the outdoor air and indoor air flow in opposite directions.

[0038] The control box (149) is placed in the outer storage space (119) at the front center inside the case (110). The control box (149) is placed between the outside air passage (111) and the ventilation passage (113). The control box (149) is placed between the outside air flange (151) and the ventilation flange (153). The outside air flange (151) is placed to the left of the control box (149), the ventilation flange (153) is placed to the right, and the control box cover (141) is placed in front. The control box (149) is connected to the case (110) and is separated to the lower side of the case (110) when the door (130) is opened.

[0039] The control box (149) is equipped with electronic components such as a printed circuit board and an integrated circuit inside. The control box (149) controls an outside air damper (171), a ventilation damper (173), a bypass damper (175), a circulation damper (176), an exhaust damper (174), a supply air damper (172), an exhaust fan (164), and a supply air fan (162), and supplies power to them.

[0040] The control box cover (141) is positioned at the front center of the case (110). The control box cover (141) is an L-shaped panel that covers the front and bottom of the control box (149). The control box cover (141) shields the outer storage space (119). The control box cover (141) covers the control box (149) to protect it. The control box cover (141) forms the outer side together with the side of the case (110). The control box cover (141) is detachably attached to the side of the case (110). The control box cover (141) is separated to the lower side of the case (110) when the door (130) is opened.

[0041] A ventilation device according to one embodiment of the present invention comprises: an outside air damper (171) disposed in an outside air passage (111) to control the inflow of outside air; a ventilation damper (173) disposed in a ventilation passage (113) to control the inflow of indoor air; an exhaust damper (174) disposed in an exhaust fan (164) to control the discharge of air; a supply air damper (172) disposed in a supply air fan (162) to control the discharge of air; a bypass damper (175) that guides indoor air in the ventilation passage (113) to the exhaust passage (114) when opened; a circulation damper (176) that guides indoor air in the exhaust passage (114) to the outside air passage (111) when opened; an outside air flange (151) connected to an outside air duct extending to the outside to allow outdoor air to flow in; and a ventilation device connected to a ventilation duct extending to the indoors to allow indoor air to flow in. It further includes a flange (153), an exhaust flange (154) connected to an exhaust duct extending to the outside to discharge air to the outside, a supply air flange (152) connected to a supply air duct extending to the inside to discharge air to the inside, an outside air filter (181) for purifying air introduced into the outside air path (111), and a ventilation filter (183) for purifying air introduced into the ventilation path (113).

[0042] The outside air damper (171) is positioned in the outside air flow path (111) on the front left side inside the case (110). The outside air damper (171) is positioned between the outside air flange (151) and the heat exchanger (190) to control the flow of air entering from the outside or to regulate the airflow.

[0043] The ventilation damper (173) is positioned in the ventilation passage (113) on the front right side inside the case (110). The ventilation damper (173) is positioned between the ventilation flange (153) and the heat exchanger (190) to control the flow of air entering from the room or to regulate the airflow.

[0044] The exhaust damper (174) is positioned in the exhaust passage (114) on the rear left side inside the case (110). The exhaust damper (174) is positioned at the discharge port of the exhaust fan (164) to control the flow of air discharged from the exhaust fan (164) to the outside or to regulate the airflow. The exhaust damper (174) controls the inflow of air from the outside.

[0045] The supply air damper (172) is positioned in the supply air passage (112) on the rear right side inside the case (110). The supply air damper (172) is positioned at the discharge port of the supply air fan (162) to control the flow of air discharged from the supply air fan (162) into the room or to regulate the airflow. The supply air damper (172) controls the inflow of air from the room.

[0046] The bypass damper (175) is positioned in the right center inside the case (110). The bypass damper (175) is positioned between the ventilation path (113) and the supply air path (112) and, when opened, guides the air from the ventilation path (113) to the exhaust path (114).

[0047] The circulation damper (176) is positioned in the left center inside the case (110). The circulation damper (176) is positioned between the exhaust passage (114) and the outside air passage (111) and, when opened, guides the air from the exhaust passage (114) to the outside air passage (111).

[0048] The outside air flange (151) is positioned on the front left side outside the case (110). The outside air flange (151) guides air entering from the outside into the outside air passage (111). The outside air flange (151) protrudes toward the left, but according to the embodiment, it may protrude toward the front.

[0049] The ventilation flange (153) is positioned on the front right side outside the case (110). The ventilation flange (153) guides air entering from the room into the ventilation passage (113). The ventilation flange (153) protrudes toward the right, but according to the embodiment, it may protrude toward the front.

[0050] The exhaust flange (154) is positioned on the rear left side outside the case (110). The exhaust flange (154) guides the air discharged from the exhaust fan (164) to the outside.

[0051] The supply air flange (152) is positioned on the rear right side outside the case (110). The supply air flange (152) guides air discharged from the supply air fan (162) into the room.

[0052] An outside air filter (181) is placed in the outside air passage (111) on the front left side inside the case (110). The outside air filter (181) is placed between the outside air damper (171) and the heat exchanger (190) to purify the air flowing in from the outside. The outside air filter (181) may be various filters that remove odors or harmful substances or filter fine substances, and in this embodiment, the outside air filter (181) includes an outside air dust filter (181a) that filters fine substances and an outside air deodorizing filter (181b) that removes odors, as shown in FIG. 3.

[0053] A ventilation filter (183) is placed in the ventilation path (113) on the front right side inside the case (110). The ventilation filter (183) is placed between the ventilation damper (173) and the heat exchanger (190) to purify the air entering from the room. The ventilation filter (183) may be various filters that remove odors or harmful substances or filter fine particles, and in this embodiment, the ventilation filter (183) is a dust filter that filters fine particles.

[0054] FIG. 5 is a partially exploded perspective view of a ventilation device according to one embodiment of the present invention, FIG. 6 is an exploded perspective view of a door of a ventilation device according to one embodiment of the present invention, FIG. 7 is a partially cross-sectional view of a ventilation device according to one embodiment of the present invention when the door is closed, and FIG. 8 is a partially cross-sectional view of a ventilation device according to one embodiment of the present invention when the door is open.

[0055] The door (130) opens and closes the lower side of the case (110) so that the control box (149), control box cover (141), heat exchanger (190), outside air filter (181) or ventilation filter (183) can be separated to the lower side of the case (110).

[0056] The door (130) is rotatably coupled to the case (110), and the axis of rotation is positioned inside the case (110). Referring to FIGS. 7 and 8, the axis of rotation of the door (130) is farther from the bottom surface of the case (110) than from the side surface of the case (110). Accordingly, the space for the door (130) to open can be minimized. The opening speed of the door (130) is controlled so that it does not open too quickly.

[0057] Referring to FIGS. 5 and 6, the door (130) includes a door body (131) forming the main body of the door, a door cover (132) covering the outer surface of the door body (131), a door hinge (137) formed protruding from the door body (131), a hinge housing (139) coupled inside the case (110) and rotatably coupled to the door hinge (137), a door damper (138) coupled to the door hinge (137) and the hinge housing (139) to control the rotational speed, and a door button (133) that opens the door (130) when operated (pressed).

[0058] The door body (131) is a flat rectangular shape in which the direction of the rotation axis of the door (130) is the longer side. A door hinge (137) is positioned on one longer side of the door body (131), and a door button (133) is positioned on the other longer side. A door hinge (137) is positioned on the inner surface of the door body (131) (the surface facing the case (110) when the door (130) is closed), and a door cover (132) is positioned on the outer surface.

[0059] The door cover (132) is the part of the ventilation device installed on the ceiling that is exposed to the outside, protecting the ventilation device and improving the appearance. The door cover (132) completely covers the outer surface and edges of the door (130).

[0060] The door hinge (137) is an L-shaped bracket that protrudes from the inner surface of the door body (131) in a direction perpendicular to the door body (131), then bends at a 90-degree angle and extends in a direction parallel to the door body (131). The door hinge (137) has a rounded shape at the bending part. The door hinge (137) has a longer length in the part parallel to the door body (131) than in the part perpendicular to the door body (131). The door hinge (137) is designed so that the rotation axis of the door (130) is positioned as deep as possible inside the case (110), thereby minimizing the space for the door (130) to open. The door hinge (137) has a hinge damper groove (1378) formed at the free end into which a door damper (138) is inserted.

[0061] A pair of door hinges (137) are provided on one door (130), and the pair of door hinges (137) are each positioned at the front and rear ends of one long side of the door body (131) at maximum distance from each other.

[0062] Referring to FIG. 8, when the door (130) is opened, the door body (131) does not touch the side of the case (110), but the door hinge (137) touches the side of the case (110). That is, the door hinge (137) acts as a stopper when the door (130) is opened, thereby limiting the opening angle of the door (130).

[0063] The hinge housing (139) is approximately cuboid in shape, with a space formed inside to accommodate the door hinge (137) and the door damper (138). The hinge housing (139) has a rounded surface formed corresponding to the rounded portion of the door hinge (137). The hinge housing (139) has a hinge housing boss (1395) formed on the rounded surface that protrudes and is coupled to the case (110). The hinge housing (139) has a housing damper groove (1398) formed at one corner spaced apart from the door body (131) into which the door damper (138) is inserted.

[0064] A pair of hinge housings (139) are provided on one door (130), and the pair of hinge housings (139) are positioned to correspond to a pair of door hinges (137).

[0065] One side of the door damper (138) is coupled to the hinge damper groove (1378) and the other side is coupled to the housing damper groove (1398) to control the rotational movement of the door hinge (137) and the hinge housing (139). The door damper (138) contains a fluid or spring mechanism inside to control the opening and closing speed of the door (130). The door damper (138) prevents sudden movement when the door (130) is opened and provides a cushioning action when the door (130) is closed.

[0066] The door button (133) is positioned at a location as far as possible from the rotation axis of the door (130) toward the opposite side of the door body (131). The door button (133) is positioned as far as possible from the door hinge (137). Accordingly, the door button (133) allows the door (130) to be securely closed with a small amount of force. Additionally, the user can securely open the door (130) by operating the door button (133).

[0067] Referring to FIG. 5, the door button (133) includes a door hook (1335) that hooks onto the lower surface of the control box cover (141) or the lower surface of the case (110).

[0068] A pair of door buttons (133) are provided on a single door (130), and the pair of door buttons (133) are each positioned at the front and rear ends of the other long side of the door body (131) at maximum distance from each other. The door hook (1335) of the door button (133) positioned at the front end of the door (130) is hooked onto the door keeper (1415) of the control box cover (141), and the door hook (1335) of the door button (133) positioned at the rear end of the door (130) is hooked onto the case keeper (115) of the case (110).

[0069] Although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the invention as claimed in the patent claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention. Explanation of the symbols

[0070] 110: Case 111: Outside air flow path 112: Urgent Euro 113: Ventilation Euro 114: Exhaust Euro 115: Case Keeper 118: Central storage space 119: External storage space 120: Case Cover 130: Door 131: Door body 132: Door cover 133: Door button 137: Door hinge 138: Door damper 139: Hinge housing 141: Control box cover 1415: Door Keeper 149: Control box 151: Outdoor air flange 152: Supply air flange 153: Ventilation flange 154: Exhaust flange 162: Sudden fan 164: Exhaust fan 190: Heat exchanger

Claims

Claim 1 A ventilation device comprising: a case into which outdoor air and indoor air are introduced; a heat exchanger disposed inside the case for heat exchange between the outdoor air and the indoor air; and a door that opens and closes the lower side of the case so that the heat exchanger can be separated to the lower side of the case, and a rotating shaft disposed inside the case. Claim 2 In claim 1, the rotation axis of the door is a ventilation device where the distance from the bottom surface of the case is greater than the distance from the side surface of the case. Claim 3 A ventilation device according to claim 1, wherein the door comprises: a door body; a door hinge formed protruding from the door body; a hinge housing coupled to the interior of the case and rotatably coupled to the door hinge; and a door damper coupled to the door hinge and the hinge housing to control the rotational speed. Claim 4 In claim 3, the door hinge is a ventilation device having an L-shaped bracket. Claim 5 In claim 4, the door hinge has a rounded bending portion, and the hinge housing has a rounded surface formed thereon corresponding to the rounded bending portion of the door hinge. Claim 6 In claim 5, the ventilation device wherein the hinge housing has a hinge housing boss formed that protrudes from the rounded surface and is coupled to the case. Claim 7 In claim 4, the door hinge is a ventilation device in which the length of the portion parallel to the door body is longer than the length of the portion perpendicular to the door body. Claim 8 In claim 3, the ventilation device wherein the door hinge has a hinge damper groove formed at the free end into which the door damper is inserted. Claim 9 In claim 3, the ventilation device in which the door hinge contacts the side of the case when the door is opened. Claim 10 In claim 3, the ventilation device further comprises a door button positioned at a location spaced as far as possible from the rotation axis toward the opposite side of the door body. Claim 11 In claim 10, the door button is a ventilation device comprising a door hook that hooks onto the lower surface of the case. Claim 12 A ventilation device comprising: a case into which outdoor air and indoor air are introduced; a heat exchanger disposed inside the case for heat exchange between the outdoor air and the indoor air; and a door that opens and closes the lower side of the case and has a controlled opening speed so that the heat exchanger can be separated to the lower side of the case.

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