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, an exhaust fan disposed inside the case for discharging air to the outside, a supply fan disposed inside the case for discharging air to the inside, a heat exchanger disposed inside the case for heat exchange between the outdoor air and the indoor air, and a control box disposed inside the case for controlling the exhaust fan and the supply fan.

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] These ventilation systems are often installed on the ceilings of utility rooms, laundry rooms, or outdoor unit rooms. In such cases, washing machines, dryers, refrigerators, outdoor units, or various other items may be located beneath the ventilation system. Consequently, it was frequently difficult to remove the control box for the maintenance of the heat exchanger. The problem to be solved

[0005] The problem that the present invention aims to solve is to provide a ventilation device in which the control box can be easily removed.

[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; an exhaust fan disposed inside the case and discharging air to the outside; a supply fan disposed inside the case and discharging air to the indoors; a heat exchanger disposed inside the case and exchanging heat between the outdoor air and the indoor air; and a control box disposed inside the case and controlling the exhaust fan and the supply fan.

[0008] To achieve the above objective, a ventilation device according to an embodiment of the present invention comprises: a case; a heat exchanger disposed inside the case for heat-exchanging outdoor air and indoor air; an exhaust fan disposed inside the case for discharging indoor air heat-exchanged in the heat exchanger to the outside; a supply fan disposed inside the case for discharging outdoor air heat-exchanged in the heat exchanger to the indoors; a door for opening and closing the lower side of the case; and a control box disposed inside the case to control the exhaust fan and the supply fan and to be detachable when the door is opened.

[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 control box can be removed downwards, which has the advantage of easy maintenance.

[0012] Second, the control box has the advantage of being positioned between the outside air flow path and the ventilation flow path, allowing it to be placed inside the case without obstructing airflow.

[0013] Third, there is also the advantage that the door hook is attached to the control box cover, which prevents the control box cover from being left uninstalled.

[0014] Fourth, there is also the advantage that the control box cover is partially forced into the lower case, preventing the control box from falling downward.

[0015] 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

[0016] 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 component of a ventilation device according to one embodiment of the present invention. FIG. 4 is an internal structural diagram of a ventilation device according to one embodiment of the present invention. FIG. 5 is a drawing showing the door of a ventilation device opening according to one embodiment of the present invention. FIG. 6 is a drawing showing the removal of a control box of a ventilation device according to one embodiment of the present invention. FIG. 7 is a perspective view of a control box cover of a ventilation device according to one embodiment of the present invention. Specific details for implementing the invention

[0017] 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.

[0018] 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.

[0019] Throughout the specification, unless specifically stated otherwise, each component may be singular or plural.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] Hereinafter, the present invention will be described with reference to the drawings for explaining a ventilation device according to embodiments of the present invention.

[0025] 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.

[0026] 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).

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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).

[0033] 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.

[0034] 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).

[0035] 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).

[0036] 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).

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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).

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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).

[0048] 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).

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] FIG. 5 is a drawing showing the door of a ventilation device opening according to one embodiment of the present invention, FIG. 6 is a drawing showing the control box of a ventilation device being removed according to one embodiment of the present invention, and FIG. 7 is a perspective view of the control box cover of a ventilation device according to one embodiment of the present invention.

[0056] Referring to FIG. 5, the door (130) includes a door button (133) that opens the door (130) when operated (pressed). 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).

[0057] A pair of door buttons (133) are provided on a single door (130), and the pair of door buttons (133) are provided at the front and rear ends of the door (130), respectively. The door hook (1335) of the door button (133) positioned at the front end of the door (130) is caught on 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 caught on the case keeper (115) of the case (110). Since some of the door buttons (133) are caught on the door keeper (1415) of the control box cover (141), the door (130) cannot be completely closed when the control box cover (141) is separated from the case (110). Therefore, it is possible to prevent the door (130) from closing with the control box cover (141) unfastened.

[0058] Referring to FIG. 6, a ventilation device according to one embodiment of the present invention further includes a shielding panel (142), which is an electromagnetic compatibility (EMC) panel made of metal material that blocks electromagnetic waves, positioned between a control box (149) and a control box cover (141). The control box (149) has a control box boss (1497) formed therein, which protrudes from the bottom to the side and is coupled to a case (110) by a fastening means such as a bolt.

[0059] Referring to FIG. 7, the control box cover (141) comprises a cover side portion (1411) that forms part of the exterior side of the ventilation device and covers the front of the control box (149), a cover bottom portion (1412) that extends horizontally from the bottom of the cover side portion (1411) and covers the bottom of the control box (149), slide rails (1416) that extend vertically at each of the two ends (left end and right end) of the cover side portion (1411), a door keeper (1415) that is positioned in the center of the cover bottom portion (1412) and on which the door hook (1335) of the door button (133) is hooked, cover snap hooks (1418) that are positioned at each of the two ends (left end and right end) of the cover bottom portion (1412) and hook onto the bottom of the case (110), and a shield that protrudes from the rear of the cover side portion (1411) toward the control box (149). A cover rib (1413) is formed to separate the panel (142) from the cover side portion (1411).

[0060] The bottom part of the cover (1412) is completely covered by the door (130) when the door (130) is closed, and the cover snap hook (1418) is also covered. Therefore, when the door (130) is closed, the cover snap hook (1418) cannot be operated, and consequently, the control box (149) cannot be detached. That is, the cover snap hook (1418) is exposed when the door (130) is opened, allowing the control box cover (141) and the control box (149) to be detached, thereby preventing unintended detachment of the control box (149).

[0061] Referring to FIG. 6, the case (110) is formed with a control box communication hole (1195) that communicates with an external storage space (119), which is a space for storing a control box (149), and an external air passage (111) (or ventilation passage (113)); a slide guide (1196) that is inserted into a slide rail (1416) and protrudes in an upward and downward direction; a case boss (1197) that protrudes into the external storage space (119) and is coupled to a control box boss (1497) by a fastening means; a case socket (1198) that is positioned on the lower surface of the case (110) and is open to catch a cover snap hook (1418); and a case keeper (115) that is positioned at the center of the rear end of the lower surface of the case (110) and catches a door hook (1335) of a door button (133).

[0062] The slide guide (1196) is formed such that the width of the top and bottom is greater than the width of the middle. The slide guide (1196) is partially forced into the slide rail (1416) to prevent the control box cover (141) from being easily separated from the case (110).

[0063] The case cover (120) has an L-shaped case cover rib (1413) formed thereon that protrudes downward and backward from the inner front corner to separate the shielding panel (142) from the case cover (120).

[0064] 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

[0065] 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 1195: Control box chimney hole 1196: Slide Guide 1197: Case Boss 120: Case Cover 130: Door 133: Door button 141: Control box cover 1418: Cover Snap Hook 142: Shielding panel 1415: Door Keeper 149: Control box 1497: Control Box Boss 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; an exhaust fan disposed inside the case and discharging air to the outside; a supply fan disposed inside the case and discharging air to the inside; a heat exchanger disposed inside the case and exchanging heat between the outdoor air and the indoor air; and a control box disposed inside the case and controlling the exhaust fan and the supply fan. Claim 2 In claim 1, the case is formed with an outdoor air passage through which outdoor air flows and a ventilation passage through which indoor air flows, and the control box is a ventilation device disposed between the outdoor air passage and the ventilation passage. Claim 3 In claim 2, the case is a ventilation device having a control box communication hole formed therein that communicates the space in which the control box is housed with the outside air flow path. Claim 4 In claim 1, the ventilation device further comprises an outside air flange disposed outside the case to allow outdoor air to flow in; and a ventilation flange disposed outside the case to allow indoor air to flow in, wherein the control box is disposed between the outside air flange and the ventilation flange. Claim 5 A ventilation device according to claim 1, further comprising a control box cover coupled to the case and covering the control box. Claim 6 In claim 5, the ventilation device further includes a door rotatably coupled to the lower side of the case, and the control box cover is separated to the lower side of the case when the door is opened. Claim 7 In claim 6, the door includes a door button that opens the door when operated, and the control box cover is a ventilation device in which a door keeper is formed to engage the door button. Claim 8 In claim 7, the case is formed with a case keeper disposed on the lower surface, the door buttons are provided in a pair, and one of the pair of door buttons is engaged with the door keeper and the other is engaged with the case keeper. Claim 9 In claim 6, the control box cover has a cover snap hook formed on the lower surface of the case, and the cover snap hook is a ventilation device exposed when the door is opened. Claim 10 In claim 5, the control box cover has a slide rail formed extending vertically on its side, the case is inserted into the slide rail and has a slide guide formed extending vertically, and the slide guide is a ventilation device in which the width of the top and bottom is greater than the width of the middle. Claim 11 In claim 10, the ventilation device wherein the case is disposed on the lower surface and a case socket is formed that is open to catch the cover snap hook. Claim 12 A ventilation device according to claim 5, further comprising a shielding panel disposed between the control box and the control box cover to block electromagnetic waves, wherein the control box cover has a cover rib formed that protrudes toward the control box and separates the shielding panel. Claim 13 In claim 1, the ventilation device wherein the control box protrudes sideways from the bottom and has a control box boss formed thereon that is coupled to the case by a fastening means. Claim 14 In claim 13, the ventilation device wherein the case is formed such that it protrudes into the space in which the control box is housed and is coupled to the control box boss by the fastening means. Claim 15 A ventilation device comprising: a case; a heat exchanger disposed inside the case for heat exchange between outdoor air and indoor air; an exhaust fan disposed inside the case for discharging indoor air heat-exchanged in the heat exchanger to the outside; a supply fan disposed inside the case for discharging outdoor air heat-exchanged in the heat exchanger to the inside; a door for opening and closing the lower side of the case; and a control box disposed inside the case to control the exhaust fan and the supply fan and to be detachable when the door is opened.

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