US20130025822A1 - Ventilation apparatus - Google Patents

Ventilation apparatus Download PDF

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Publication number
US20130025822A1
US20130025822A1 US13/558,595 US201213558595A US2013025822A1 US 20130025822 A1 US20130025822 A1 US 20130025822A1 US 201213558595 A US201213558595 A US 201213558595A US 2013025822 A1 US2013025822 A1 US 2013025822A1
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US
United States
Prior art keywords
air
heat exchanger
outdoor air
ventilation apparatus
fan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/558,595
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English (en)
Inventor
Jeongtae RYU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020110092642A external-priority patent/KR20130029288A/ko
Priority claimed from KR1020110094754A external-priority patent/KR101193999B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Ryu, Jeongtae
Publication of US20130025822A1 publication Critical patent/US20130025822A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/205—Mounting a ventilator fan therein
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • a ventilation apparatus exhausts indoor air to the outside and supplies outdoor air to an indoor area, and may minimize heat loss of an indoor area by heat-exchanging indoor air and outdoor air.
  • a ventilation apparatus may include an exhaust fan for exhausting indoor air to the outside, an air supply fan for supplying outdoor air to an indoor area, and a heat exchanger for heat-exchanging indoor air exhausted by the exhaust fan and outdoor air supplied by the air supply fan.
  • a ventilation apparatus may be, for example, a ceiling-insert type ventilation apparatus which is installed/embedded in a ceiling and connected to an indoor area and an outdoor area by a duct, exhausting indoor air and supplying outdoor air through the duct.
  • FIG. 1 is a perspective view of a ventilation apparatus according to a first embodiment as broadly described herein;
  • FIG. 2 is an exploded perspective view of the ventilation apparatus shown in FIG. 1 ;
  • FIG. 3 is a front interior view of the ventilation apparatus shown in FIGS. 1 and 2 ;
  • FIG. 4 is a rear view of the ventilation apparatus shown in FIGS. 1 and 2 ;
  • FIG. 5 is a plan view of an air supply fan of the ventilation apparatus shown in FIGS. 1 and 2 ;
  • FIG. 6 is a cross-sectional view of a controller of the ventilation apparatus shown in FIGS. 1 and 2 ;
  • FIG. 7 is an exploded perspective view of a ventilation apparatus according to a second embodiment as broadly described herein;
  • FIG. 8 is an exploded perspective view of a ventilation apparatus according to a third embodiment as broadly described herein.
  • FIG. 9 is a front interior view of a ventilation apparatus according to a fourth embodiment as broadly described herein.
  • a ventilation apparatus as embodied and broadly described herein may include a casing 2 forming an external appearance thereof.
  • the ventilation apparatus may be installed in an indoor area to be ventilated, either as a free standing unit or installed in the ceiling, and the casing 2 may be connected to an outdoor area by an air intake and exhaust duct 3 .
  • the ventilation apparatus may draw in indoor air from an indoor area and discharge it to an outdoor area through the air intake and exhaust duct 3 .
  • the ventilation apparatus may draw in outdoor area through the air intake and exhaust duct 3 and discharge it to an indoor area.
  • the air intake and exhaust duct 3 may penetrate the wall of a building to provide for communication between indoor and outdoor areas.
  • the air intake and exhaust duct 3 may include a partition plate 3 ′ to partition an air intake passage for guiding in outdoor air and an air exhaust passage for exhausting indoor air.
  • the ventilation apparatus may, for example, draw in indoor air from left and right sides thereof and discharge outdoor air from an upper side thereof.
  • the casing 2 may include a left indoor air suction hole 4 formed on a left side thereof, a right indoor air suction hole 6 formed on a right side thereof, an indoor air discharge hole 8 and an outdoor air suction hole 10 formed on a rear side thereof, and outdoor air discharge holes 12 and 14 formed on an upper side thereof.
  • the casing may include a base 16 , a rear panel 18 , a front panel 20 , and a top cover 22 .
  • the casing 2 may be, for example, positioned near or fixed to the wall of an indoor area to be ventilated by fasteners 23 A and 23 B such as, for example, bolts, or the like.
  • Receivers 24 A and 24 B may be formed on the casing 2 , such as, for example, at left and right lower portions of the casing 2 , to respectively receive and fix the fasteners 23 A and 23 B.
  • the fasteners 23 A and 23 B may extend in a forward/backward direction and may include a head portion caught by a front end portion of the receivers 24 A and 24 B, respectively.
  • the fasteners 23 A and 23 B may penetrate the receivers 24 A and 24 B such that a rear portion of the fasteners 23 A and 23 B may be inserted into and fixed in an indoor wall.
  • the fasteners 23 A and 23 B may be fastened to the receivers 24 A and 24 B by a holder such as, for example, a nut, or the like.
  • the receivers 24 A and 24 B may include a through portion through which the fasteners 23 A and 23 B may penetrate.
  • the receivers 24 A and 24 B may be disposed at left and right sides of at least one of the base 16 or the rear panel 18 .
  • the fasteners 23 A and 23 B may include a left fastener 23 A fixing the left side of the casing 2 and a right fastener 23 B fixing the right side of the casing 2 .
  • the receivers 24 A and 24 B may include a left receiver 24 A to which the fastener 23 A is fastened and a right receiver 24 B to which the right fastener 23 B is fastened.
  • the base 16 may include a lower plate 16 A, a left plate 16 B that protrudes upward from a left side of the lower plate 16 A, and a right plate 16 C that protrudes from a right side of the lower plate 16 A.
  • the lower plate 16 A may define a bottom of the casing 2 .
  • the base 16 may include a left sloped plate 16 D that slopes upward from an upper end of the left plate 16 B and a right sloped plate 16 E that slopes upward from an upper end of the right plate 16 C.
  • the distance between the left plate 16 B and the right plate 16 C of the base 16 may be less than the distance between the left receiver 24 A and the right receiver 24 B.
  • the left fastener 23 A may be inserted into a space between the left plate 16 B and the left sloped plate 16 D of the base 16 so as to be fastened to the left receiver 24 A.
  • the right fastener 23 B may be inserted into a space between the right plate 16 C and the right sloped plate 16 E of the base 16 so as to be fastened to the right receiver 24 B.
  • the left fastener 23 A and the right fastener 23 B may be fastened to a wall from an outer position of the base 16 .
  • the rear panel 18 may define a rear wall of the casing 2 .
  • the indoor air discharge hole 8 and the outdoor air suction hole 10 may extend through the rear panel 18 .
  • the indoor air discharge hole 8 and the outdoor air suction hole 10 may be vertically spaced apart on the rear panel 18 .
  • the indoor air discharge hole 8 may be positioned above the outdoor air suction hole 10 .
  • the air intake and exhaust duct 3 may be connected to the rear panel 18 .
  • An exhaust passage formed within an upper portion of the air intake and exhaust duct 3 may be connected with the indoor air discharge hole 8 , and an air supply passage formed within a lower portion within the air intake and exhaust duct 3 (below the partition plate 3 ′) may communicate with the outdoor air suction hole 10 .
  • the rear panel 18 may include a left through hole 18 A that the left fastener 23 A penetrates and a right through hole 18 B that the right fastener 23 B penetrates.
  • the front panel 20 may define a front surface of the ventilation apparatus and lateral plates 26 and 28 may define respective lateral sides of the ventilation apparatus.
  • the lateral plates 26 and 28 may be integrally formed with one of the rear panel 18 or the front panel 20 , or may be separately formed from the rear panel 18 and the front panel 20 and coupled to at least one of the rear panel 18 or the front panel 20 .
  • a gap at a front side of the casing 2 may be minimized.
  • the front panel 20 may include a left plate 26 having the left indoor air suction hole 4 formed therein, a right plate 28 having the right indoor air suction hole 6 formed therein, and a front plate 30 extending between a front edge of the left plate 26 and a front edge of the right plate 28 .
  • a partition plate 40 may partition an interior of the casing 2 into an indoor air exhaust chamber 36 and an outdoor air suction chamber 38 , with an exhaust fan 42 installed in the indoor air exhaust chamber 36 , a left air supply fan 44 installed in the outdoor air suction chamber 38 blowing outdoor air to the left heat exchanger 32 and a right air supply fan 46 installed in the outdoor air suction chamber 38 blowing outdoor air to the right heat exchanger 34 .
  • the left heat exchanger 32 and the right heat exchanger 34 may heat-exchange outdoor air and indoor air, respectively.
  • the left heat exchanger 32 and the right heat exchanger 34 may each include an outdoor air flow path 48 allowing outdoor air to be drawn in from a lower face thereof and discharged from an upper face thereof and an indoor air flow path 50 allowing indoor air to pass therethrough in a horizontal direction.
  • the indoor air flow path 50 of the left heat exchanger 32 may draw indoor air in at a left face thereof and discharge the air from a right face thereof
  • the indoor air flow path 50 of right heat exchanger 34 may draw indoor air in at a right face thereof and discharge the air from a left face thereof.
  • the left heat exchanger 32 and the right heat exchanger 34 may each include a front shield provided on a front face thereof and a rear shield provided on a rear face thereof.
  • a heat transmission device may be provided between the front shield and the rear shield to allow outdoor air and indoor air to transfer heat, while partitioning the outdoor air flow path 48 and the indoor air flow path 50 .
  • the outdoor air flow path and the indoor air flow path 50 may be alternately arranged in a forward/backward direction.
  • Left and right faces of the outdoor air flow path 48 may be closed and upper and lower faces of the outdoor air flow path 48 may be open, with the space between the upper face and the lower face of the outdoor air flow path 48 also open.
  • Upper and lower faces of the indoor air flow path 50 may be closed and left and right faces of the indoor air flow path 50 may be open, with the space between the left face and the right face of the indoor air flow path 50 also open.
  • Outdoor air suction flow paths 52 and 54 may be respectively formed between the left heat exchanger 32 and the right heat exchanger 34 and the lower plate 16 A of the casing 2 .
  • the outdoor air suction flow path 52 below the left heat exchanger 32 will be referred to as a left outdoor air suction flow path 52
  • the outdoor air suction flow path 54 below the right heat exchanger 34 will be referred to as a right outdoor air suction flow path 54 .
  • the left heat exchanger 32 may be supported by a left supporter 56 such that the left heat exchanger 32 is separated from the lower plate 16 A of the casing 2
  • the right heat exchanger 34 may be supported by a right supporter 58 such that the right heat exchanger 34 is separated from the lower plate 16 A of the casing 2 .
  • the left supporter 56 may include a left lower frame 60 disposed on the lower plate 16 A of the casing 2 , a left vertical frame 62 extending upward from and perpendicular to the left lower frame 60 , and a left upper frame 64 horizontally disposed and extending from an upper portion of the left vertical frame 62 .
  • the left heat exchanger 32 may be supported on the left upper frame 64 of the left supporter 56 .
  • a left opening 65 may allow air blown from the left air supply fan 44 to pass therethrough and flow to the lower face of the left heat exchanger 32 .
  • the right supporter 58 may include a right lower frame 70 disposed on the lower plate 16 A of the casing 2 , a right vertical frame 72 extending upward from and perpendicular to the right lower frame 70 , and a right upper frame 74 horizontally disposed and extending from an upper portion of the right vertical frame 72 .
  • the right heat exchanger 34 may be supported on the right upper frame 74 of the right supporter 58 .
  • a right opening 75 may allow air blown from the right air supply fan 46 to pass therethrough and flow to the lower face of the right heat exchanger 34 .
  • the partition plate 40 may act as a shield that prevents mixing of indoor air from the indoor area and outdoor air from an outdoor area.
  • the partition plate 40 may define the outdoor air suction chamber 38 together with the lower plate 16 A of the casing 2 , and may also define the indoor air exhaust chamber 36 at an upper side thereof.
  • An upper face of the partition plate 40 may form a flow path for indoor air, and a lower face of the partition plate 40 may form a flow path for outdoor air.
  • the partition plate 40 may secure an installation space of the left air supply fan 44 and the right air supply fan 46 while also allowing for a maximum height of the left heat exchanger 32 and the right heat exchanger 34 .
  • the partition plate 40 may include a horizontal plate 90 , a left sloped plate 92 , and a right sloped plate 94 .
  • the horizontal plate 90 may be placed between the left heat exchanger 32 and the right heat exchanger 34 , with the left sloped plate 92 sloping toward a lower end of the left heat exchanger 32 from a left end of the horizontal plate 90 and the right sloped plate 94 sloping toward a lower end of the right heat exchanger 34 from a left end of the horizontal plate 90 .
  • the left sloped plate 92 and the right sloped plate 94 may be sloped toward the exhaust fan 42 to guide indoor air, which has passed through the left heat exchanger 32 and the right heat exchanger 34 , to the exhaust fan 42 .
  • the exhaust fan 42 may include suction holes 96 and 97 formed on left and right faces thereof and an air discharge hole 98 formed at a rear portion thereof, so that the exhaust fan 42 may draw air in from left and right faces thereof and blow it in a backward direction.
  • the exhaust fan 42 may include a fan housing 100 having the indoor air suction holes 96 and 97 and the indoor air discharge hole 98 formed therein, a blower 102 within the fan housing 100 , and a motor 104 connected by a rotational shaft to the blower 102 to rotate the blower 102 .
  • the exhaust fan 42 may form an exhaust flow path along which indoor air passes through the left heat exchanger 32 and the right heat exchanger 34 and then is discharged through the indoor air discharge hole 8 .
  • the fan housing 100 of the exhaust fan 42 may be installed on the rear panel 18 , with the air suction hole 96 facing the left heat exchanger 32 and the air suction hole 97 facing the right heat exchanger 34 .
  • the air discharge hole 98 may communicate with the indoor air discharge hole 8 of the casing 2 .
  • Noise generated by the exhaust fan 42 may be transferred to an outdoor area through the indoor air discharge hole 8 , and thus may not greatly affect the indoor area in which the ventilation apparatus is installed.
  • a single exhaust fan 42 rather than multiple fans, may be used to reduce a number of components and simplify an assembling process of the ventilation apparatus.
  • Noise generated by the left and right air supply fans 44 and 46 may be transferred to the indoor area through the left outdoor air discharge hole 12 and the right outdoor air discharge hole 14 .
  • a single large air supply fan, rather than the left and right air supply fans 44 and 46 would likely generate a greater amount of noise. Therefore, smaller left and right air supply fans 44 and 46 , rather than a single large air supply fan, may be used. Namely, the left air supply fan 44 and the right air supply fan 46 together generate less noise when driven in comparison to the noise generated by a single large air supply fan, and thus noise transferred to the indoor area through the left outdoor air discharge hole 12 and the right outdoor air discharge hole 14 may be minimized.
  • the left air supply fan 44 and the right air supply fan 46 may form a distributed air supply flow path along which outdoor air is drawn into the outdoor air suction chamber 38 and then distributed to the left heat exchanger 32 and the right heat exchanger 34 .
  • the left air supply fan 44 may blow outdoor air toward the outdoor air suction flow path 52 between the left heat exchanger and the lower plate 16 A of the casing 2
  • the right air supply fan 46 may blow outdoor air toward the outdoor air suction flow path 52 between the left heat exchanger and the lower plate 16 A of the casing 2 .
  • the ventilation apparatus may further include a left air supply fan mount 110 on which the left air supply fan 44 is mounted and a right air supply fan mount 120 on which the right air supply fan 46 is mounted.
  • the left air supply fan mount 110 may be coupled to the left supporter 56 , with the left outdoor air suction flow path 52 formed between the lower plate 16 A of the base 16 and the left plate 16 B of the base 16 and the lower face of the left heat exchanger 32 and the left air supply fan mount 110 .
  • the opening 112 may communicate with the left outdoor air suction flow path 52 .
  • the right air supply fan mount 120 may be coupled to the right supporter 58 , with the right outdoor air suction flow path 54 formed between the lower plate 16 A of the base 16 and the right plate 16 C of the base 16 and the lower face of the right heat exchanger 34 and the right air supply fan mount 120 .
  • the opening 122 may communicate with the right outdoor air suction flow path 54 .
  • the left air supply fan 44 and the right air supply fan 46 may be separately installed and may be driven independently.
  • the left air supply fan 44 and the right air supply fan 46 may each include a fan housing 130 , a blower 134 rotatably installed in the fan housing 130 , and a motor 132 to rotate the blower 134 .
  • Each fan housing 130 may have air suction holes formed in a front face and a rear face thereof to allow outdoor air to be sucked into the fan housing 130 , and an air discharge hole 136 formed on a circumferential portion thereof to discharge outdoor air.
  • the air discharge hole 136 may protrude in a lateral direction from the circumferential portion of the housing 130 , excluding the front face and the rear face of the fan housing 130 in which the air suction holes are formed.
  • the left air supply fan 44 and the right air supply fan 46 may be installed to discharge in opposite directions.
  • left air supply fan 44 may be installed to discharge air in a leftward direction and the right air supply fan 46 may be installed to discharge air in a rightward direction.
  • the fan housings 130 of the left air supply fan 44 and the right air supply fan 46 may have essentially the same shape, and the fan housings 130 may be installed such that discharge directions of the air discharge holes 136 face in opposite directions.
  • fan housing 130 of the left air supply fan 44 may be installed such that the air discharge hole 136 protrudes in the leftward direction
  • the fan housing 130 of the right air supply fan 46 may be installed such that the air discharge hole 136 protrudes in the rightward direction.
  • the motor 132 of the left air supply fan 44 may be installed on one of the front face or the rear face of the fan housing 130 of the left air supply fan 44 .
  • the motor 132 of the right air supply fan 46 may be installed on the other of the front face or the rear face of its fan housing 130 .
  • the motor 132 of the left air supply fan 44 when the motor 132 of the left air supply fan 44 is installed on the front face of the fan housing 130 of the left air supply fan 44 and the air discharge hole 136 formed on the fan housing 130 of the left air supply fan 44 discharges air in the leftward direction, the motor 132 of the right air supply fan 46 may be installed on the rear face of the fan housing 130 of the right air supply fan 46 and the air discharge hole 136 formed on the fan housing 130 of the right air supply fan 46 may discharge air in the rightward direction.
  • the motor 132 of the left air supply fan 44 when the motor 132 of the left air supply fan 44 is installed on the rear face of the fan housing 130 of the left air supply fan 44 and the air discharge hole 136 formed on the fan housing 130 of the left air supply fan 44 discharges air in the leftward direction, the motor 132 of the right air supply fan 46 may be installed on the front face of the fan housing 130 of the right air supply fan 46 and the air discharge hole 136 formed on the fan housing 130 of the right air supply fan 46 may discharge air in the rightward direction.
  • the ventilation apparatus may further include a left heat exchanger holder 140 for installation of the left heat exchanger 32 and a right heat exchanger holder 142 for installation of the right heat exchanger 34 .
  • the left heat exchanger holder 140 may be installed on or above the left supporter 56 and the right heat exchanger holder 142 may be installed on or above the right supporter 58 .
  • the left heat exchanger holder 140 may include a left vertical frame 144 connected to an upper portion of the left supporter 56 and extending vertically a left horizontal frame 146 extending horizontally from an upper end of the left vertical frame 144 .
  • the right heat exchanger holder 142 may include a right vertical frame 148 connected to an upper portion of the right supporter 58 and extending vertically and a right horizontal frame 150 extending horizontally from an upper end of the right vertical frame 148 .
  • a left end of the partition plate 40 may be connected to the left heat exchanger 32 through at least one of the left supporter 56 , the left air supply fan mount 110 , or the left heat exchanger holder 140 .
  • a right end of the partition plate 40 may be connected to the right heat exchanger 34 through at least one of the right supporter 58 , the right air supply fan mount 120 , or the right heat exchanger holder 142 .
  • the ventilation apparatus may include a left filter device 152 that filters indoor air drawn into the left heat exchanger 32 and a right filter device 154 that filters indoor air drawn into the right heat exchanger 34 .
  • the left filter device 152 may include a left filter 156 that filters indoor air passing therethrough and a left filter frame 158 having a sliding guide 157 to which the left filter 156 may be slidably attached or detached.
  • the left filter frame 158 of the left filter device 152 may connect the left supporter 56 and the left heat exchanger holder 140 to fix the left heat exchanger 32 along with the left supporter 56 and the left heat exchanger holder 140 .
  • the right filter device 154 may include a right filter 162 that filters indoor air passing therethrough and a right filter frame 164 having a sliding guide 163 to which the right filter 162 may be slidably attached or detached.
  • the right filter frame 164 of the right filter device 154 may connect the right supporter 58 and the right heat exchanger holder 142 to fix the right heat exchanger 34 along with the right supporter 58 and the right heat exchanger holder 142 .
  • the ventilation apparatus may include a controller 170 for controlling operation of the ventilation apparatus.
  • the controller 170 may be installed, for example, between the exhaust fan 42 and the top cover 22 , or other locations as appropriate.
  • the ventilation apparatus may include a shielding member 180 , or backflow shield 180 , preventing outdoor air discharged upward and outward from the left heat exchanger 32 and the right heat exchanger 34 from flowing back to the exhaust fan 42 when the exhaust fan 42 , the left air supply fan 44 , and the right air supply fan 46 are driven.
  • the shielding member 180 may be, for example, an outdoor air reverse current preventing member positioned between the exhaust fan 42 and the top cover 22 .
  • the shielding member 180 may connect the left heat exchanger holder 140 and the right heat exchanger holder 142 and enhance the strength of the left heat exchanger holder 140 and the right heat exchanger 142 .
  • a left side of the shielding member 180 may be coupled to the left heat exchanger holder 140
  • a right side of the shielding member 180 may be coupled to the right heat exchanger holder 142 .
  • the controller 170 may include a PCB 171 , a PCB case 172 on which the PCB 171 is mounted, and a PCB cover 173 covering the PC 171 and the PCB case 172 .
  • Various electronic components for controlling the ventilation apparatus may be installed on the PCB 171 .
  • the PCB case 172 may be mounted on the shielding member 180 .
  • the PCB case 172 may prevent the PCB 171 from being in direct contact with the shielding member 180 and provide insulation for the PCB 171 .
  • the PCB case 172 may be molded from an insulating material such as plastic, or the like.
  • the PCB cover 173 may protect the PCB 171 and the PCB case 172 .
  • the PCB cover 173 may be molded from an insulating material such as plastic, or the like.
  • the shielding member 180 may be made of a metallic material to provide strength and fire protection.
  • the PCB 171 may be installed on the PCB case 172 to avoid direct contact with the shielding member 180 .
  • a controller receiving space 181 may be formed in the shielding member 180 to receive and protect the controller 170 therein.
  • a front side of the controller receiving space 181 may be open while the shielding member 180 maintains its assembly position relative to the left heat exchanger holder 140 and the right heat exchanger holder 142 .
  • the shielding member 180 may include a lower plate 182 on which the controller 170 is mounted, a left plate 183 formed on the left of the lower plate 182 and separated from the left heat exchanger 32 , and a right plate 184 formed on the right of the lower plate 182 and separated from the right heat exchanger 34 .
  • the left plate 183 of the shielding member 180 may be separated from the left heat exchanger 32 in the event of fire or overheating of the controller 170 .
  • the right plate 184 of the shielding member 180 may be separated from the right heat exchanger 34 .
  • the shielding member 180 may have a left gap T 1 between the left plate 183 and the left heat exchanger 32 and a right gap T 2 between the right plate 184 and the right heat exchanger 34 .
  • the shielding member 180 may further include a left upper plate 185 formed at an upper side of the left plate 183 and connected to an upper portion of the left heat exchanger holder 140 and a right upper plate 186 formed at an upper side of the right plate 184 and connected to an upper portion of the right heat exchanger holder 142 .
  • the left air supply fan 44 and the right air supply fan 46 are driven, and outdoor air is drawn into the outdoor air suction chamber 38 through the outdoor air suction hole 10 .
  • the outdoor air in the outdoor air suction chamber 38 is distributed to the left air supply fan 44 and the right air supply fan 46 .
  • a flow direction of the outdoor air flowing through the left air supply fan 44 is changed to the leftward direction and discharged to the left outdoor air suction flow path 52 below the left heat exchanger 32 . Thereafter, flow direction is changed to an upward direction in the left outdoor air suction flow path 52 so as to be drawn into the left heat exchanger 32 , where the outdoor air in the outdoor air flow path 48 undergoes heat-exchange with indoor air passing along the indoor air flow path 50 . The heat-exchanged air is then discharged through the upper face of the left heat exchanger 34 and directly discharged to the indoor area through the left outdoor air discharge hole 12 of the casing 2 .
  • the outdoor air drawn into the outdoor air suction chamber 38 is distributed to the left and to the right in the outdoor air suction chamber 38 , a flow direction thereof is changed to the horizontal direction one time, and then changed to the vertical direction one time, thus changing direction a total of two times, so as to be discharged into the indoor area.
  • the indoor air is drawn in through the left indoor air suction hole 4 and the right indoor air suction hole 6 .
  • the indoor air drawn in through the left indoor air suction hole 4 passes through the left filter 156 and is drawn into the left heat exchanger 32 , where it passes through the indoor air flow path 50 and undergoes heat-exchange with outdoor air of the outdoor air flow path 48 . Thereafter, the heat-exchanged air is drawn into the indoor air exhaust chamber 36 through the right face of the left heat exchanger 32 and through the exhaust fan 42 for discharge through the indoor air discharge hole 8 .
  • the indoor air drawn in through the right indoor air suction hole 6 passes through the right filter 162 and is drawn into the right heat exchanger 34 , where it passes through the indoor air flow path 50 and undergoes heat-exchange with outdoor air of the outdoor air flow path 48 . Thereafter, the heat-exchanged air is drawn into the indoor air exhaust chamber 36 through the left face of the right heat exchanger 34 and through the exhaust fan 42 for discharge through the indoor air discharge hole 8 .
  • noise generated from the left air supply fan 44 and the right air supply fan 46 may be transferred to the outside through the left outdoor air discharge hole 12 and the right outdoor air discharge hole 14 .
  • two relatively small left and right air supply fans 44 and 46 rather than a single large air supply fan, are installed, less noise is generated when driven and noise transferred to the outside through the left outdoor air discharge hole 12 and the right outdoor air discharge hole 14 may be minimized.
  • FIG. 7 is an exploded perspective view of a ventilation apparatus according to a second embodiment as broadly described herein;
  • the ventilation apparatus may include a service cover 200 that covers the front sides of the left heat exchanger 32 , the right heat exchanger 34 , the exhaust fan 42 , the left air supply fan 44 , and the right air supply fan 46 .
  • the service cover 200 may prevent the left heat exchanger 32 , the right heat exchanger 34 , the exhaust fan 42 , the left air supply fan 44 , and the right air supply fan 46 from being exposed when the front panel 20 is separated or removed.
  • the service cover 200 may hermetically close the front side of the left heat exchanger 32 , the front side of the right heat exchanger 34 , and the front side of the indoor air exhaust chamber 36 to prevent indoor air from being unintentionally exhausted to an outdoor area after being sucked into the indoor air exhaust chamber 36 , rather than passing through the left heat exchanger 32 and the right heat exchanger 34 .
  • the service cover 200 may also hermetically close the front side of the outdoor air suction chamber 38 , the front side of the left outdoor air suction flow path 52 , the front side of the right outdoor air suction flow path 54 , the front side of the left heat exchanger 32 , and the front side of the right heat exchanger 34 to prevent outdoor air in the outdoor air suction chamber 38 from being unintentionally supplied to the indoor area through the outdoor air discharge holes 12 and 14 , rather than passing through the left heat exchanger 32 and the right heat exchanger 34 .
  • the service cover 200 may leave the front sides of the left and right filters 156 and 162 exposed and accessible to allow the left and right filters 156 and 162 to be removed from and replaced on the left and right filter frames 158 and 164 without separating the service cover 200 .
  • the service cover 200 may be formed such that a horizontal width thereof is less than a distance between the left filter 156 installed on the left filter frame 158 and the right filter 162 installed on the right filter frame 164 .
  • the service cover 200 , the left filter 156 and the right filter 162 of the ventilation apparatus may be exposed to the outside so that the left filter 156 may be removed and replaced from the left side of the service cover 200 without having to separate the service cover 200 and the right filter 162 may be removed and replaced from the right side of the service cover 200 .
  • the service cover 200 may include a left lower recess 202 formed at a left lower portion thereof to allow the left fastener 23 A to be fastened or separated without separating the service cover 200 .
  • the service cover 200 may include a right lower recess 204 formed at a right lower portion thereof to allow the right fastener 23 B to be fastened or separated without separating the service cover 200 .
  • the controller 170 may be positioned between the exhaust fan 42 and the top cover 22 , and the service cover 200 may include a controller recess 206 corresponding to an installation position of the controller 170 in order to provide access to the controller 170 without separating the service cover 200 .
  • FIG. 8 is an exploded perspective view of ventilation apparatus according to a third embodiment as broadly described herein.
  • the ventilation apparatus may include a left service cover 210 covering the front side of the left outdoor air suction flow path 52 and a right service cover 220 covering the front side of the right outdoor air suction flow path 54 .
  • the left service cover 210 may hermetically close the front side of the left outdoor air suction flow path 52 to minimize leakage of air from the left air supply fan 44 into the indoor area through the left outdoor air discharge hole 12 without passing through the left heat exchanger 32 .
  • the left service cover 210 may be installed at a front side of the left supporter 56 .
  • the left service cover 210 may include a left lower recess 212 formed at a left lower portion thereof to allow the left fastener 23 A to be fastened and separated without separating the left service cover 210 .
  • the right service cover 220 may hermetically close the front side of the right outdoor air suction flow path 54 to minimize leakage of air from the right air supply fan 46 into the indoor area through the right outdoor air discharge hole 14 without passing through the right heat exchanger 34 .
  • the right service cover 220 may be installed at a front side of the right supporter 58 .
  • the right service cover 220 may include a right lower recess 222 formed at a right lower portion thereof to allow the right fastener 23 B to be fastened and separated without separating the right service cover 220 .
  • FIG. 9 is a front interior view of a ventilation apparatus according to a fourth embodiment as broadly described herein.
  • a partition plate 40 ′ is slightly rounded. Other configurations and operations of the partition plate 40 ′ may be the same as or similar to those of the partition plate 40 of the first embodiment.
  • the partition plate 40 ′ may have an upwardly convex shape.
  • a left end of the partition plate 40 ′ may be fixed to and contact at least one of the left heat exchanger holder 140 , the left supporter 56 , or the left air supply fan mount 110 .
  • a right end of the partition plate 40 ′ may be fixed to and contact at least one of the right heat exchanger holder 142 , the right supporter 58 , or the right air supply fan mount 120 .
  • a ventilation apparatus as embodied and broadly described herein may be installed in an indoor area.
  • a ventilation apparatus directly supplies outdoor air to the indoor area, a single large air supply fan may generate a great deal of noise. If space is set aside for absorbing the noise generated by the air supply fan, the space occupied by the ventilation apparatus may be excessively large.
  • a ventilation apparatus as embodied and broadly described herein may include a casing having a left indoor air suction hole formed on the left and a right indoor air suction hole formed on the right, an indoor air discharge hole and an outdoor air suction hole formed at a rear side, and an outdoor air discharge hole formed at an upper side; a left electrical heat exchanger installed on the left within the casing, a right electrical heat exchanger installed on the right within the casing; a partition plate partitioning the internal left side and internal right side of the casing into an indoor air exhaust chamber and an outdoor air suction chamber; an exhaust fan disposed in the indoor air exhaust chamber; a left air supply fan disposed in the outdoor air suction chamber and blowing outdoor air to the left electrical heat exchanger; and a right air supply fan disposed in the outdoor air suction chamber and blowing outdoor air to the right electrical heat exchanger.
  • the left electrical heat exchanger and the right electrical heat exchanger may have an indoor air flow path allowing indoor air to pass therethrough in a horizontal direction and an outdoor air flow path allowing outdoor air to be sucked to a lower face thereof so as to be discharged to an upper face thereof, respectively.
  • the left electrical heat exchanger and the right electrical heat exchanger may have an outdoor air suction flow path between the left electrical heat exchanger and the right electrical heat exchanger and a lower plate of the casing.
  • the ventilation apparatus may also include a left supporter supporting the left electrical heat exchanger such that the left electrical heat exchanger is separated from the lower plate of the casing; and a right supporter supporting the right electrical heat exchanger such that the right electrical heat exchanger is separated from the lower plate of the casing.
  • the left supporter and the right supporter may have an opening allowing outdoor air to pass therethrough, respectively.
  • the ventilation apparatus may also include a left air supply fan mounter on which the left air supply fan is mounted; and a right air supply fan mounter on which the right air supply fan is mounted.
  • the left air supply fan mounter and the right air supply fan mounter may be vertically installed within the casing and have an opening allowing outdoor air to pass therethrough, respectively.
  • the left air supply fan and the right air supply fan may be separately installed.
  • the left air supply fan and the right air supply fan may include a fan housing, a blower rotatably placed within the fan housing, and a motor installed at the fan housing and rotating the blower, and the fan housings may suck outdoor air from front and rear faces thereof and have an air discharge hole formed on a circumferential portion thereof, respectively.
  • the fan housing of the left air supply fan and that of the right air supply fan may have the same shape, the air discharge hole of the fan housing of the left air supply fan may be installed to discharge air to the left side, and the air discharge hole of the fan housing of the right air supply fan may be installed to discharge air to the right side.
  • the motor of the fan housing of the left air supply fan may be installed on one of the front and rear faces, and the motor of the fan housing of the right air supply fan may be installed on the opposite side of the motor of the air supply fan.
  • the partition plate may include a horizontal plate placed between the left electrical heat exchanger and the right electrical heat exchanger a left sloped plate disposed to be sloped toward a lower end of the left electrical heat exchanger from the horizontal plate; and a right sloped plate disposed to be sloped toward a lower end of the right electrical heat exchanger from the horizontal plate.
  • the casing may include a top cover having a left outdoor air discharge hole formed at an upper side of the left electrical heat exchanger and a right outdoor air discharge hole formed at an upper side of the right electrical heat exchanger.
  • the exhaust fan may include air suction holes formed at both of left and right faces thereof and an air discharge hole formed at a rear side thereof.
  • the control unit controlling the ventilation apparatus may be installed to be placed between the exhaust fan and the top cover.
  • the ventilation apparatus may also include a shielding member preventing outdoor air discharged to an upper side of the left electrical heat exchanger and the right electrical heat exchanger from flowing backward to the exhaust fan.
  • the shielding member may include a control unit accommodation portion 181 accommodating the control unit.
  • any reference in this specification to “one embodiment,” “an embodiment,” “example embodiment,” etc. means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention.
  • the appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
US13/558,595 2011-07-28 2012-07-26 Ventilation apparatus Abandoned US20130025822A1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2011-0074998 2011-07-28
KR20110074998 2011-07-28
KR1020110092642A KR20130029288A (ko) 2011-09-14 2011-09-14 환기장치
KR10-2011-0092642 2011-09-14
KR1020110094754A KR101193999B1 (ko) 2011-07-28 2011-09-20 환기장치
KR10-2011-0094754 2011-09-20

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US20130025822A1 true US20130025822A1 (en) 2013-01-31

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US13/558,595 Abandoned US20130025822A1 (en) 2011-07-28 2012-07-26 Ventilation apparatus

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US (1) US20130025822A1 (de)
EP (1) EP2551607B1 (de)

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US20160231016A1 (en) * 2013-10-14 2016-08-11 ROOS GmbH Air-to-Air Heat Exchanger
US20170047032A1 (en) * 2014-04-22 2017-02-16 Sharp Kabushiki Kaisha Active-matrix substrate and display device including the same

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US9410716B2 (en) * 2011-09-01 2016-08-09 Lg Electronics Inc. Ventilation apparatus
US20160231016A1 (en) * 2013-10-14 2016-08-11 ROOS GmbH Air-to-Air Heat Exchanger
US9976767B2 (en) * 2013-10-14 2018-05-22 ROOS GmbH Air-to-air heat exchanger
US20170047032A1 (en) * 2014-04-22 2017-02-16 Sharp Kabushiki Kaisha Active-matrix substrate and display device including the same

Also Published As

Publication number Publication date
EP2551607B1 (de) 2018-10-17
EP2551607A1 (de) 2013-01-30

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