WO2019096313A1 - Unité intérieure murale de climatiseur - Google Patents

Unité intérieure murale de climatiseur Download PDF

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Publication number
WO2019096313A1
WO2019096313A1 PCT/CN2018/116266 CN2018116266W WO2019096313A1 WO 2019096313 A1 WO2019096313 A1 WO 2019096313A1 CN 2018116266 W CN2018116266 W CN 2018116266W WO 2019096313 A1 WO2019096313 A1 WO 2019096313A1
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WO
WIPO (PCT)
Prior art keywords
air
wall
indoor unit
air supply
annular inner
Prior art date
Application number
PCT/CN2018/116266
Other languages
English (en)
Chinese (zh)
Inventor
李英舒
关婷婷
王永涛
Original Assignee
青岛海尔空调器有限总公司
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
Application filed by 青岛海尔空调器有限总公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2019096313A1 publication Critical patent/WO2019096313A1/fr

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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by 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
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression

Definitions

  • the present invention relates to an air conditioner, and more particularly to a wall-mounted air conditioner indoor unit.
  • the air conditioner is one of the necessary household appliances. As the user's requirements for comfort and health are getting higher and higher, the air supply method of the traditional air conditioner is to send the cold air into the room, and slowly convect the air with the surrounding air. Slower, can not give people a feeling of rapid cooling, and the air blower of the indoor unit blows directly to the person, which will adversely affect the health of the user, and is prone to air conditioning disease.
  • an indoor unit that ejects the air outlet with a gentle air supply which uses a small air outlet to drive the surrounding air to be blown, so that the air after the heat exchange is mixed with the surrounding air, but the air outlet is sprayed.
  • the requirements for the structure are high, so that the jet outlets are mostly used in cabinet-type indoor units with more space.
  • the casing In order to meet the structural requirements of the jet vent, it is often necessary to set the casing to a circular shape or other irregular shape in order to meet the structural requirements of the jet vent, on the one hand, the user's usage habits and the existing type of the hanging indoor unit. Cognitive gaps are not easily accepted by users; on the other hand, it also causes troubles for the installation of hanging indoor units. Therefore, the hanging indoor unit that uses the air outlet can not meet the user's requirements.
  • One object of the present invention is to provide a wall-mounted air conditioner indoor unit with a gentle heat transfer speed.
  • a further object of the present invention is to make the indoor unit of the wall-mounted air conditioner compact and conform to the user's usage habits.
  • the present invention provides a wall-mounted air conditioner indoor unit, which includes:
  • a housing comprising a cover and a front panel disposed in front of the cover, the top wall of the cover is provided with an air inlet, and the lower portion of the front panel is provided with an oblong air supply opening;
  • the air-jet member is disposed in the air supply opening, and includes an annular inner wall and an annular outer wall, wherein the annular inner wall defines a ventilation hole, the annular outer wall and the annular inner wall together define a supply air chamber, and an edge of the annular outer wall that meets the annular inner wall forms an air outlet
  • the air vent is used to spray the airflow of the air supply chamber forward, and the air behind the air supply port is sucked through the air vent;
  • the air supply assembly comprises: a centrifugal fan and a wind guiding component, wherein the centrifugal fan is configured to allow ambient air to enter from the air inlet to exchange heat with the heat exchanger, and to discharge the heat exchanged airflow to the air supply chamber through the air guiding component .
  • the wall-mounted air conditioner indoor unit further includes a partition plate including a longitudinal plate portion disposed parallel to the front panel, the central portion of the longitudinal plate portion being recessed rearward to define between the front panel and the front panel a heat exchanger accommodating chamber in which the heat exchanger is arranged;
  • the air inlet is formed by an inlet grill provided at the top of the casing, and the partition further includes a transverse plate portion that is in contact with the top of the longitudinal plate portion and spaced apart from the top of the casing, the transverse plate portion defining the air inlet to the heat exchanger The air inlet passage of the accommodating chamber.
  • the center of the longitudinal plate portion is provided with a through hole for the air collecting port of the centrifugal fan to pass through, so that the centrifugal fan sucks the air that exchanges heat with the heat exchanger in the heat receiving chamber; the impeller and the volute of the centrifugal fan And disposed in the space defined by the longitudinal plate portion and the casing, and the exhaust port of the volute is facing the side wall of the casing; the air inlet of the air guiding member is in contact with the exhaust port of the volute.
  • the air guiding component comprises:
  • a drainage section having an air inlet of the air guiding member, and at least a portion of the drainage section is spirally shaped to guide the airflow direction of the centrifugal fan downward;
  • the air supply section is connected to the drainage section, and defines an air collection chamber therein to receive the airflow discharged by the centrifugal fan, and the air supply section has an exhaust port facing the air jet component, so that the airflow of the air collection chamber is supplied to the air supply Cavity.
  • the drainage section is tapered from the air inlet of the air guiding component in the airflow direction; and the air supply section forms a volute shape along the air outlet direction of the drainage section to reduce the airflow resistance of the airflow in the air collection cavity.
  • the air supply section is located below the heat exchanger accommodating cavity, and the distance in the front-rear direction is greater than the drain section, and the exhaust port of the air supply section is disposed on the front side of the plenum chamber on the side of the air-jet component.
  • the air-jet component comprises two spaced horizontal sections and two arcuate sections connecting the two sections of the horizontal section, wherein the arc of the arcuate sections on one side of the wind-guiding component of the two sections of the arc-shaped section
  • An air inlet of the air jet component is opened on the outer wall, and is connected to the air outlet of the air supply section.
  • the rear side edge of the annular inner wall is recessed toward the interior of the air supply chamber, and the annular outer wall has an outward flange at a position opposite the rear side edge of the annular inner wall such that the annular outer wall and the rear side edge of the annular inner wall The gap between them forms a jet.
  • the annular inner wall extends forwardly from the rear side edge thereof to form a Coanda surface that continuously expands outward; and the portion of the annular outer wall that is located at the rear side of the air injection component has a spiral shape so that the air flow of the air supply chamber is annular After the outer wall is ejected from the air vent, the surface of the Coanda formed along the inner wall of the ring is forwarded and the ambient air behind the air vent is extracted.
  • the cover and the lower portion of the front panel form a front and rear air supply opening
  • the rear side of the cover forms a position of the air supply opening, so that the air circulation area is behind the air supply opening.
  • an oblong air supply port is arranged under the front panel for arranging the annular air-jet component, so that the airflow exchanged by the heat exchanger is ejected from the air outlet of the air-jet component, and is sucked.
  • the ambient air around the air supply port is mixed with the heat exchange airflow with a sharp temperature difference in the surrounding environment to ensure that the airflow sent out is soft and the feeling of blowing to the human body is more comfortable.
  • the air supply volume is increased, and the flow of indoor air is accelerated.
  • the indoor temperature is uniformly lowered as a whole, and the air outlet of the indoor unit of the wall-mounted air conditioner of the present invention is strip-shaped and disposed under the casing, and the overall structure is similar to the existing conventional hanging indoor unit, and is easily accepted by the user. Moreover, it is easy to replace the existing conventional hanging indoor unit, and the installation position is flexible.
  • the air inlet is disposed on the top wall of the casing, which is outside the visual range of the user, can ensure the integrity of the appearance, and forms the air inlet to the heat exchanger by using the partition plate.
  • the air inlet passage of the accommodating chamber ensures the smooth flow of the heat exchange air.
  • the indoor unit enters the wind from the top, and the air is discharged from the lower side of the front panel to form an air circulation, so that the indoor temperature is quickly adjusted to meet the user's use requirements.
  • the indoor unit of the wall-mounted air conditioner of the present invention has a compact internal structure and makes full use of the space inside the casing, so that the indoor unit of the wall-mounted air conditioner can be made thinner.
  • the indoor unit of the wall-mounted air conditioner of the present invention improves the position and structure of components such as a heat exchanger, a centrifugal fan, a wind guiding member, etc., on the one hand, reduces the occupied space, and on the other hand, can also reduce The air supply wind resistance.
  • FIG. 1 is a schematic external view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention
  • FIG. 2 is a schematic exploded view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention
  • FIG. 3 is a schematic view of a jetting member in an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention
  • Figure 4 is a schematic cross-sectional flow diagram of the air flow taken along line A-A of Figure 3;
  • FIG. 5 is a schematic illustration of internal components of a wall-mounted air conditioner indoor unit in accordance with one embodiment of the present invention
  • Figure 6 is a schematic illustration of a blower assembly in a wall-mounted air conditioner indoor unit in accordance with one embodiment of the present invention.
  • the embodiment provides a wall-mounted air conditioner indoor unit 100.
  • the “upper”, “lower”, “front”, “rear”, “top” and “bottom” directions mentioned in the specification are in accordance with the wall-mounted air conditioner.
  • the spatial positional relationship in the normal operation state of the indoor unit 100 is limited.
  • the side facing the user of the wall-mounted air conditioner indoor unit 100 is the front side, and the side abutting against the mounting position is the rear side.
  • FIG. 1 is a schematic external view of a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention
  • FIG. 2 is a schematic exploded view of a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention.
  • the wall-mounted air conditioner indoor unit 100 may generally include a housing 110, a jet member 120, a heat exchanger 140, and a blower assembly.
  • the housing 110 may include a cover 112 and a front panel 114 disposed in front of the cover 112.
  • the casing 112 is formed by a top wall, a side wall, and a back, defining a space for accommodating internal components, and the front panel 114 is disposed in front of the casing 112, thereby closing the internal space of the casing 112.
  • An air inlet 116 and an air supply opening 117 are defined in the housing 110.
  • the air blowing port 117 is disposed in an oblong shape at a lower portion of the casing 110, and communicates with the surrounding environment in the upstream of the air blowing direction, and the air blowing member 120 is disposed in the air blowing port 117.
  • the air inlet 116 is disposed on the top wall of the casing 112, and the air inlet 116 may be formed by a grid, a mesh, or the like, thereby ensuring the integrity of the appearance.
  • the external ambient air can enter the interior of the indoor unit 100 from the top. Since the user generally cannot see the position of the air inlet 116, the installation structure of the air inlet 116 can ensure the integrity of the appearance and improve the aesthetics of the body.
  • the indoor unit 100 enters the wind from the top and exhausts from the lower side of the front panel 114 to form an air circulation, so that the indoor temperature is quickly adjusted to meet the user's use requirements.
  • the air supply opening 117 can be disposed through the lower portion of the housing 110 (the housing 112 and the front panel 114 are respectively provided with elongated circular through holes, thereby forming the front and rear through air outlets 117).
  • the position of the rear side of the casing 112 forming the air blowing port 117 is recessed forward so that there is an air circulation area 118 behind the air blowing port 117, so that the inside of the air blowing port 117 communicates with the air circulation area 118 for the ejection of the air ejection member 120.
  • the heat exchange gas can be sucked from the air circulation area 118 to mix the ambient air, and the temperature difference between the mixed air flow and the surrounding environment is small, softer, and the air supply amount is larger, thereby accelerating the flow of the indoor air.
  • the air injection component 120 may also be disposed at a position in front of the lower portion of the housing 110, and the housing 110 has a hollowed out area communicating with the surrounding environment at the rear of the air injection component 120, that is, upstream of the air supply direction.
  • the heat exchange gas jetted from the air jet part 120 can be sucked by the ambient air through the hollowed out area for mixing.
  • the heat exchanger 140 is disposed inside the casing 110, for example, at a position inside the casing 110 close to the front panel 114, that is, at a front portion of the inner space of the casing 110.
  • the heat exchanger 140 exchanges heat with the air flowing therethrough to change the temperature of the air flowing therethrough.
  • the heat exchanger 140 is part of a refrigeration system, and the refrigeration system can be realized by a compression refrigeration cycle that utilizes a refrigerant in a compression phase change cycle of a compressor, a condenser, an evaporator, and a throttling device to achieve heat transfer.
  • the refrigeration system can also be provided with a four-way valve to change the flow direction of the refrigerant, so that the indoor unit heat exchanger 140 alternately functions as an evaporator or a condenser to realize a cooling or heating function. Since the compression refrigeration cycle in the air conditioner is well known to those skilled in the art, the working principle and configuration thereof will not be described herein.
  • the air supply assembly includes a centrifugal fan 131 and a wind guiding member 136.
  • the centrifugal fan 131 serves as a power source for the airflow in the indoor unit 100, and may be configured such that ambient air enters from the top air inlet 116 and exchanges heat with the heat exchanger 140, passes through the centrifugal fan 131, and is discharged downstream of the airflow, and finally passes through the air jet component. 120 is sent out of the indoor unit 100.
  • the air guiding member 136 is connected between the exhaust port of the centrifugal fan 131 and the air supply chamber of the air injection member 120, and is used to guide the airflow discharged from the centrifugal fan 131 into the air supply chamber.
  • the air-jet member 120 is disposed in the air blowing port 117 and has an elliptical shape (or a racetrack shape) as a whole.
  • the center of the air-jet member 120 defines a ventilation hole 123 that penetrates forward and backward.
  • the size and specifications of the air-jet member 120 and its internal components can be set according to the air blowing capability of the air-sending unit centrifugal fan 131 and the specification position of the air guiding member 136.
  • 3 is a schematic view of a gas jet part 120 in a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention
  • FIG. 4 is a schematic cross-sectional air flow flow diagram taken along line A-A of FIG.
  • the air-jet member 120 includes an annular inner wall 121 and an annular outer wall 122.
  • the annular inner wall 121 and the annular outer wall 122 together form the above-described oblong shape, and the inner side of the annular inner wall 121 is the exhaust hole 123.
  • the edge of the annular outer wall 122 that is in contact with the annular inner wall 121 forms a gas jet port 124 for ejecting the air flow from the air supply chamber 125 forward and allowing air at the rear of the air supply port 117 to be drawn through the air vent hole 123.
  • the rear side edge 126 of the annular inner wall 121 is recessed toward the interior of the air supply chamber 125, and the position of the annular outer wall 122 opposite the rear side edge 126 of the annular inner wall 121 has an outward flange 127 such that the annular outer wall 122 and the annular inner wall 121
  • the gap between the rear side edges 126 forms a gas vent 124.
  • the rear side edge 126 of the annular inner wall 121 recessed into the interior of the air supply chamber 125 may also have a function of guiding the airflow direction so that the airflow in the air supply chamber 125 is smoothly sent out from the air outlet 124.
  • the annular inner wall 121 extends forwardly from its rear side edge 126 to form a Coanda surface that continuously expands outward; and the portion of the annular outer wall 122 that is located on the rear side of the air injection component 120 is helically shaped such that the air flow along the air supply chamber 125 After the annular outer wall 122 is ejected from the air vent 124, the surface of the Coanda formed along the annular inner wall 121 is forwardly sent to drive the ambient air behind the air vent 117.
  • the extended inner angle of the annular inner wall 121 extending outwardly and continuously expanding may be 5 to 15 degrees.
  • the extended tilt angle can be set between 6 and 10 degrees, which is more advantageous for mixing with ambient air in the air vent 123.
  • the annular inner wall 121 and the annular outer wall 122 together define an annular supply air chamber 125 inside the air injection component 120, the annular inner wall 121 and the annular outer wall 122 having two spaced horizontal sections 128 and two sections connecting the two horizontal sections 128, respectively.
  • An arcuate section 129 wherein the annular outer wall 122 of the arcuate section 129 of the two arcuate sections 129 on one side of the wind guiding member 136 is provided with an air inlet of the air jet component 120 for receiving the air supply component After the heat exchange of air.
  • a support member 146 may be provided on the outer side of the curved section 129 on the other side for better fixing of the air injection member 120.
  • annular inner wall 121 and annular outer wall 122 are formed from a plurality of joined components, and in some preferred embodiments, annular inner wall 121 and annular outer wall 122 may be formed from a unitary molded piece.
  • the blast opening 124 can be a continuous annular groove. In some alternative embodiments, the blast opening 124 can also be formed on a portion of the annular inner wall 121 and the annular outer wall 122, or in a plurality of spaced sections.
  • the air vent 124 may be disposed only on the horizontal section 128 of the air blasting member 120 to make the air flow more uniform and to effectively illuminate the ambient air within the venting opening 123.
  • the width of the gas jet port 124 may be set to 1 to 3 mm. After extensive testing, the width of the gas jet port 124 may preferably be set to about 2 mm, and the jet port 124 of the size width ensures the heat exchange gas flow.
  • the jetting speed can minimize the windage loss of the heat exchange gas flow and reduce the noise.
  • the solid arrow indicates the direction of the airflow of the ambient air
  • the dotted arrow indicates the direction of the airflow of the heat exchange stream ejected by the air outlet 124.
  • the air-jet component 120 can also be driven by the motor and the transmission mechanism to achieve an overall up and down swing, adjust the air supply angle, and realize the swing air supply, thereby making the air outlet range wider.
  • FIG. 5 is a schematic illustration of internal components of a wall-mounted air conditioner indoor unit 100 in accordance with one embodiment of the present invention.
  • the interior of the wall-mounted air conditioner indoor unit 100 further includes a partition 143.
  • the interior of the wall-mounted air conditioner indoor unit 100 includes a partition 143 for isolating the airflow before and after the heat exchange.
  • the partition 143 includes a longitudinal plate portion 1431 disposed parallel to the front panel 114, the central portion of the longitudinal plate portion 1431 being recessed rearwardly to define a heat exchanger accommodating chamber for arranging the heat exchanger 140 with the front panel 114 .
  • the heat exchanger 140 is disposed within the heat exchanger receiving cavity.
  • the partition 143 further includes a transverse plate portion 1432 that is in contact with the top of the longitudinal plate portion 1431 and spaced from the top of the casing 112.
  • the transverse plate portion 1432 defines an air inlet passage from the top air inlet 116 to the heat exchanger receiving chamber. . After the outside air enters from the top air inlet 116, it enters the heat exchanger accommodating chamber forward along the transverse plate portion 1432 to exchange heat with the heat exchanger 140.
  • the air inlet 116 of the top wall of the casing 112 is disposed above the horizontal plate portion 1432.
  • the center of the longitudinal plate portion 1431 is provided with a through hole 145 through which the gas collection port 132 of the centrifugal fan 131 passes, so that the centrifugal fan 131 sucks into the air exchanged with the heat exchanger 140 in the heat exchanger accommodating chamber.
  • the impeller 133 and the volute 134 of the centrifugal fan 131 are disposed in a space defined by the longitudinal plate portion 1431 and the casing 112, and the exhaust port of the volute 134 faces the side wall of the casing 110; the air inlet of the air guiding member 136 is The exhaust ports of the volute 134 are connected.
  • FIG. 6 is a schematic illustration of a blower assembly in a wall-mounted air conditioner indoor unit 100 in accordance with one embodiment of the present invention.
  • the air supply assembly includes a centrifugal fan 131 and a wind guiding member 136. Since the air jet velocity of the air jet member 120 is secured, the air blowing assembly of the present embodiment employs the centrifugal fan 131 as a power source for the airflow.
  • the centrifugal fan 131 accelerates the gas by the high-speed rotating impeller 133 according to the principle that the kinetic energy is converted into potential energy, and then decelerates and changes the flow direction to convert the kinetic energy into potential energy. It generally includes a gas collection port 132, an impeller 133, and a volute 134.
  • the air collecting port 132 of the centrifugal fan 131 is an air inlet of the fan 131, and functions to ensure that the airflow can uniformly fill the inlet interface of the impeller 133 to reduce the flow loss. In the present embodiment, the air collecting port 132 of the centrifugal fan 131 is directed to the impeller 133.
  • the direction is tapered to form a bell mouth, and air that exchanges heat with the heat exchanger 140 in the heat exchanger accommodating chamber can be sucked into the impeller 133 as much as possible.
  • the impeller 133 of the centrifugal fan 131 is rotated by the high-speed motor 135, the gas between the impellers 133 is rotated by the impeller 133 to obtain centrifugal force, and the gas is thrown out of the impeller 133 into the volute 134, and the gas pressure in the volute 134 is increased. Guided discharge. After the gas between the blades is discharged, a negative pressure is formed; the heat exchanger 140 outside the gas collection port 132 accommodates the heat of the heat exchanger 140 continuously sucking, thereby forming a continuous gas flow.
  • the impeller 133 and the volute 134 of the centrifugal fan 131 are disposed in the space defined by the partition 143 and the casing 112, and the exhaust port of the volute 134 faces the side wall of the casing 110; the air inlet and the volute of the air guiding member 136 The exhaust ports of the casing 134 are connected.
  • the volute 134 is spirally shaped to absorb the air drawn from the impeller 133 and convert the dynamic pressure of the airflow into a static pressure through a wide cross-sectional area.
  • the air guiding member 136 is connected between the exhaust port of the centrifugal fan 131 and the air supply chamber 125 of the air injection member 120, and is used to guide the airflow discharged from the centrifugal fan 131 into the air supply chamber 125.
  • the wind deflecting member 136 can include a drain section 137 and a supply section 138.
  • the drainage section 137 has an air inlet of the air guiding member 136, and at least a portion of the drainage section 137 is spirally shaped, guiding the direction of the airflow discharged from the centrifugal fan 131 downward, and the drainage section 137 is along the air inlet of the air guiding member 136.
  • the direction of the airflow tapers to accelerate the airflow into the plenum 139 of the air supply section 138.
  • the air supply section 138 is in contact with the drainage section 137, and defines a gas collection chamber 139 therein for receiving the airflow discharged from the centrifugal fan 131.
  • the air supply section 138 is provided with an exhaust port facing the air injection component 120 to allow the air collection chamber 139.
  • the air flow is supplied to the air supply chamber 125.
  • the air supply section 138 forms a volute shape along the air outlet direction of the drainage section 137, reduces the wind resistance of the airflow in the air collection chamber 139, and forms a vortex in the air collection chamber 139, which can smoothly pass from the air collection chamber 139.
  • Supply air chamber 125 is supplied to the air supply chamber 125.
  • the above-mentioned drainage section 137 may be disposed on one side of the centrifugal fan 131. Due to the space limitation of the partition 143, the front-rear distance of the drainage section 137 is small, and the supply section 138 is located below the heat exchanger accommodating cavity (ie, the partition 143). The lower side of the heat exchanger 140 is so long that the distance in the front-rear direction is larger than the drain section 137, and the exhaust port of the air supply section 138 is disposed on the front side of the air collection chamber 139 on the side of the air-jet member 120.
  • the air inlet of the air injection member 120 is disposed on the annular outer wall 122 of the arcuate section 129 on the side of the air guiding member 136 in the two arcuate sections 129.
  • a blower port 117 is disposed under the casing 110 for arranging the annular air-jet member 120 so that the airflow exchanged by the heat exchanger 140 is ejected from the air-jet port 124 of the air-jet component 120.
  • the ambient air around the air supply port 117 is mixed with the heat exchange airflow with a sharp temperature difference in the surrounding environment, thereby ensuring that the airflow sent out is soft, and the feeling of blowing to the human body is more comfortable, and on the other hand, the air supply amount of the indoor unit 100 is increased.
  • the indoor air flow is accelerated, and the indoor temperature can be uniformly lowered as a whole.
  • the air outlet of the wall-mounted air conditioner indoor unit 100 of the present invention has a strip shape and is disposed under the casing 110, and the overall structure is linked with the existing conventional structure.
  • the indoor unit is similar, easy to be accepted by the user, and is easy to replace the existing conventional hanging indoor unit.
  • the installation position is flexible, the internal components are compact, and the space inside the housing 110 is fully utilized, so that the wall-mounted air conditioner indoor unit can be made Thinner.
  • the air inlet 116 is opened on the top wall of the casing 112, the ambient air enters the interior of the indoor unit from the top, and is sent out from the front under the heat exchange to form an air circulation in the room, and the temperature adjustment speed is faster, which satisfies the user's use requirements. .
  • the flow of the heat exchange airflow of the wall-mounted air conditioner indoor unit 100 of the present embodiment is such that after the centrifugal fan 131 is started, the air around the indoor unit 100 is sucked into the heat exchanger accommodating chamber from the air inlet 116, and is heated by the heat exchanger 140. After being exchanged, it enters the centrifugal fan 131, accelerates through the impeller 133, enters the air guiding member 136 through the volute 134, and is guided by the drainage section 137 of the air guiding member 136 to enter the collecting chamber 139 of the air supply section 138.
  • the airflow enters the annular air supply chamber 125 in the plenum chamber 139 by vortexing and finally through the exhaust port of the air supply section 138 from the air inlet of the air injection component 120 opened on the annular outer wall 122 of the air guiding member 136.
  • the airflow entering the air supply chamber 125 is guided by the rear side edge 126 of the annular inner wall 121, and is ejected forward from the air outlet 124 at a high speed, and the air of the air circulation area 118 at the rear of the air supply port 117 is sucked through the air injection member 120.
  • the air vent 123 is mixed into the front of the indoor unit 100 and sent into the room, and the amount of airflow is greatly increased.
  • the airflow after the heat exchange is mixed with the ambient air to become a cool and cold airflow, which accelerates the flow of the indoor air.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

Une unité intérieure murale (100) d'un climatiseur, comprenant : un boîtier (110), comprenant un boîtier de couvercle (112) et un panneau avant (114), une entrée d'air (116) étant ouverte sur une paroi supérieure du boîtier de couvercle (112), et une sortie d'air oblongue (117) étant ouverte au niveau d'une partie inférieure du panneau avant (114) ; un composant d'injection d'air (120) qui est disposée à l'intérieur de la sortie d'air (117) et qui comprend une paroi interne annulaire (121) et une paroi externe annulaire (122), la paroi interne annulaire (121) définissant un trou d'aspiration d'air (123), tandis que la paroi externe annulaire (122) et la paroi interne annulaire (121) définissent conjointement une cavité d'alimentation en air, et le bord au niveau duquel la paroi externe annulaire (122) et la jonction de paroi interne annulaire (121) forme un trou d'injection d'air (124) qui est utilisé pour injecter le flux d'air de la cavité d'alimentation en air vers l'avant et pour amener de l'air au niveau d'une partie arrière de la sortie d'air (117) à aspirer et à passer à travers le trou d'aspiration d'air (123) ; un ensemble d'alimentation en air, qui comprend un ventilateur centrifuge (131) et un composant de guidage d'air (136), le ventilateur centrifuge (131) étant configuré pour amener l'air ambiant à entrer à partir d'une entrée d'air (116) au niveau d'une partie supérieure de façon à échanger de la chaleur avec un échangeur de chaleur (140), et la partie de guidage d'air (136) évacuant le flux d'air à échange de chaleur vers la cavité d'alimentation en air. Les effets bénéfiques de celle-ci comprennent la structure qui est compacte, l'alimentation en air qui est douce et l'apport de confort.
PCT/CN2018/116266 2017-11-20 2018-11-19 Unité intérieure murale de climatiseur WO2019096313A1 (fr)

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