WO2022037722A1 - 用于壁挂式空调室内机的射流装置及壁挂式空调室内机 - Google Patents

用于壁挂式空调室内机的射流装置及壁挂式空调室内机 Download PDF

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Publication number
WO2022037722A1
WO2022037722A1 PCT/CN2021/124122 CN2021124122W WO2022037722A1 WO 2022037722 A1 WO2022037722 A1 WO 2022037722A1 CN 2021124122 W CN2021124122 W CN 2021124122W WO 2022037722 A1 WO2022037722 A1 WO 2022037722A1
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WIPO (PCT)
Prior art keywords
jet
air
outlet
air duct
flow
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PCT/CN2021/124122
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English (en)
French (fr)
Inventor
李英舒
尹晓英
鲁镇语
王永涛
Original Assignee
青岛海尔空调器有限总公司
海尔智家股份有限公司
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Publication of WO2022037722A1 publication Critical patent/WO2022037722A1/zh

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    • 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
    • F24F1/0011—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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/04—Air-mixing units
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser

Definitions

  • the invention relates to the technical field of air conditioners, in particular to a jet device for a wall-mounted air conditioner indoor unit and a wall-mounted air conditioner indoor unit.
  • some existing wall-mounted air conditioner indoor units have designed a drainage scheme, which mainly uses the airflow at the air outlet to drive the air out of the drainage outlet. Although this can achieve the effect of mixing natural air and heat exchange airflow, the amount of induced air is small. , the effect of soft air supply actually experienced by the user is not too obvious.
  • some wall-mounted air conditioner indoor units that additionally add an air induction module on the rear side outside the casing.
  • the air induction module is provided with an induced draft fan, and the indoor air is driven by the induced draft fan to flow to the jet channel and from the jet channel. outflow, thereby increasing the induced air volume.
  • the direction in which the airflow flows into the jet channel is basically the same as the direction in which it flows out of the jet channel, which strictly limits the arrangement position of the induced draft fan and even the entire induced draft module to be behind the outlet of the jet channel, and then This leads to problems such as bulky and heavy wall-mounted air conditioner indoor units.
  • One objective of the first aspect of the present invention is to overcome at least one defect of the prior art, and to provide a jet device for a wall-mounted air conditioner indoor unit with a large amount of induced air and a small footprint.
  • a further object of the first aspect of the present invention is to further improve the air outlet uniformity of the jet device in the transverse direction.
  • Another further object of the first aspect of the present invention is to increase the air outlet speed and extend the air supply distance of the jet device.
  • the object of the second aspect of the present invention is to provide a wall-mounted air conditioner indoor unit having the above-mentioned jet device.
  • the present invention provides a jet device for a wall-mounted air conditioner indoor unit
  • the wall-mounted air conditioner indoor unit includes a casing, and the casing is provided with a laterally extending portion for sending out and replacing The heat exchange air flow outlet of the hot air flow
  • the jet flow device comprises:
  • a jet air duct the front side of which is provided with a jet air outlet extending laterally;
  • the jet fan is communicated with one of the lateral sides of the jet air duct, so as to controllably drive the air outside the jet device to flow into the jet air duct along a preset direction parallel to the transverse direction, and from the jet air duct.
  • the outflow air outlet is sent out, so that the unheated natural air flowing out through the jet outflow air outlet is mixed with the heat exchange air flow sent out through the heat exchange air flow outlet;
  • the interior of the jet air duct is provided with a plurality of flow guide ribs arranged at intervals in the lateral direction, so as to guide the natural air flowing into the jet air duct in the lateral direction to flow from the rear to the front to the jet outlet.
  • the rib has a convex and curved shape toward the side away from its windward surface.
  • the rib includes a first straight section extending along the preset direction, and the end of the first straight section is protruded and bent toward the preset direction from rear to front.
  • An extending arcuate section and a second straight section extending forwardly from the end of the arcuate section to the jet outlet.
  • the depths in the front-rear direction of the plurality of the flow guide ribs arranged in sequence along the preset direction are sequentially increased.
  • an end guide rib is provided on the inner side of the end of the jet outlet adjacent to the jet fan, and the end guide rib is located on the upstream side of each of the guide ribs in the preset direction;
  • the end rib has a convexly curved shape toward its windward side.
  • the depth of the end guide ribs in the front-rear direction is smaller than the depth of any one of the air guide ribs in the front-rear direction.
  • the rib includes a first straight section extending obliquely from rear to front along the preset direction, and from the end of the first straight section towards the rear to the front an arc-shaped section protruding from the preset direction and a second straight section extending forward from the end of the arc-shaped section to the jet outlet; and
  • the shape and size of a plurality of the guide ribs are the same.
  • the interior of the jet air duct defines an air outlet cavity that communicates with the jet outlet and an air collection cavity that is located on the rear side of the air outlet cavity and communicated with the jet fan, so that the air flows into the air outlet.
  • the natural air of the jet air duct flows through the air collecting cavity and the air outlet cavity in sequence and then is sent out from the jet outlet;
  • the air outlet cavity is tapered from the rear to the front, and the air guide ribs are located in the air outlet cavity.
  • the jet fan is arranged on one of the lateral outer sides of the jet air duct, and includes a centrifugal fan and a centrifugal volute outside the centrifugal fan,
  • the centrifugal volute and the jet air channel are in sealing communication through the air guide channel;
  • the air guide passage first bends and extends to the lateral outer side of the jet air passage from top to bottom, and then bends and extends to the lateral inner side of the jet air passage, so as to be smooth with the centrifugal volute and the jet air passage at the same time. ground connection.
  • the present invention also provides a wall-mounted air conditioner indoor unit, comprising:
  • a casing which is provided with a heat exchange airflow outlet extending laterally for sending out the heat exchange airflow;
  • the jet device described in any one of the above-mentioned schemes is used to controllably urge the air flow from the outside to flow into its interior and send it out through the jet outlet, and make the air flow sent out through the jet outlet and the heat exchange airflow outlet.
  • the outgoing heat exchange gas streams are mixed.
  • the jet device of the present invention has a jet air duct and a jet fan, and can actively inject external air into the jet air duct through the jet fan. Jet, the air volume of the jet is greatly improved, and the air supply distance is increased.
  • the jet air duct is provided with a plurality of guide ribs arranged at intervals along the horizontal direction, and the natural air flowing in the lateral flow of the jet air duct can be diverted to flow from the back to the front to the jet outlet through the guide ribs, which not only ensures the The normal air supply at any position of the laterally extending jet air outlet, but also allows the jet fan to be installed at other positions except the rear side of the jet air duct, such as on the lateral outer side of the jet air duct, reducing the front and rear direction of the entire jet device.
  • the volume occupied by the above makes the structure layout of the jet device more suitable for the wall-mounted air conditioner indoor unit, avoiding the problem of bulky and heavy wall-mounted air conditioner indoor unit caused by integrating the jet device in the wall
  • the air guide rib has a convex and curved shape toward the side away from its windward surface, so that the air guide rib can have the ability to retain a preset amount of airflow on the side of its windward surface, the preset amount Under the guidance of the air guide ribs, the air flow of the air flow flows to the jet outlet air outlet, so that the uniform air outlet of the jet outlet air outlet in the lateral direction is realized under the cooperation of the plurality of air guiding ribs.
  • an air collecting cavity and an air outlet cavity are defined inside the jet air duct.
  • the air collecting cavity is communicated with the jet fan, and the static pressure can be increased through the air collecting cavity, thereby ensuring a large amount of induced air while flowing into the air collection in the lateral direction.
  • the airflow direction of the cavity is corrected to at least have a tendency to flow forward into the air outlet cavity, so that after the airflow flows into the air outlet cavity, it flows from the back to the front to the jet outlet under the action of the baffle ribs.
  • the air outlet cavity is reduced from the back to the front, which reduces the air flow resistance and increases the air flow velocity to the jet outlet, thereby increasing the air outlet speed of the jet device and extending its air supply distance.
  • FIG. 1 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a fluidic device according to an embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional view of a jet air duct taken along a horizontal section according to some embodiments of the present invention
  • Fig. 4 is a schematic enlarged view of part A in Fig. 3;
  • FIG. 5 is a schematic cross-sectional view of a jet air duct taken along a horizontal section according to other embodiments of the present invention.
  • Fig. 6 is a schematic enlarged view of part B in Fig. 5;
  • FIG. 7 is a schematic cross-sectional view of a longitudinal section of a jet air duct extending in the front-rear direction according to another embodiment of the present invention.
  • FIG. 8 is a schematic cross-sectional view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of the wall-mounted air conditioner indoor unit after the casing is hidden according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to another embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention.
  • the wall-mounted air conditioner indoor unit 1 involved in the present invention includes a casing 10 on which is provided a laterally extending air stream for sending out heat exchange air.
  • the heat exchange airflow outlet 11 (the heat exchange airflow outlet is not shown in FIG. 1, the heat exchange airflow outlet in FIG. 1 is covered by an air guide plate).
  • FIG. 2 is a schematic structural diagram of a fluidic device according to an embodiment of the present invention.
  • the jet device 100 of the present invention is applied to the above-mentioned wall-mounted air conditioner indoor unit 1 , and includes a jet air duct 40 and a jet fan 50 .
  • the front side of the jet air duct 40 is provided with a laterally extending jet outlet 41 to facilitate forward air supply, so that the jet device 100 is suitable for most wall-mounted air conditioner indoor units that supply air forward.
  • the jet fan 50 is communicated with one of the lateral sides of the jet air duct 40 to controllably drive the air outside the jet device 100 to flow into the jet air duct 40 in a preset direction parallel to the transverse direction, and to be sent out from the jet outlet 41, Therefore, the natural air without heat exchange flowing out through the jet outlet 41 is mixed with the heat exchange air flow sent out through the heat exchange air flow outlet 11 . That is to say, the external air can be actively injected into the jet air duct 40 by the jet fan 50.
  • the present application adopts the active jet of the jet fan 50, and the air volume of the jet is greatly increased. Increase, the air supply distance increases.
  • the above-mentioned preset direction is parallel to the horizontal direction, which may be a left-to-right direction or a right-to-left direction.
  • the jet air outlet 41 is located on the front side of the jet air duct 40 and extends laterally, and the jet fan 50 communicates with one of the lateral ends of the jet air duct 40, the flow direction of the air flowing into the jet air duct 40 is the same as that of the outflow jet air.
  • the airflow directions of the channels 40 are perpendicular to each other. That is, the airflow needs to be reversed by approximately 90 degrees in the jet air duct 40 .
  • the interior of the jet air duct 40 is specially provided with a plurality of guide ribs 42 arranged at intervals in the lateral direction, so as to guide the natural air flowing in the transverse direction of the jet air duct 40 to flow from the rear to the front to the jet outlet 41 .
  • the natural air flowing laterally in the jet air duct 40 can be guided relatively uniformly to the jet outlet 41 through the guide ribs 42, so that the heat exchange air flowing out from any place of the heat exchange air outlet 41 can be combined with the heat exchange air flow outlet 41.
  • the natural air flowing out from the jet air outlet 41 is mixed, thereby improving the air outlet uniformity of the wall-mounted air conditioner indoor unit 1 in the lateral direction in terms of the outlet air temperature and the outlet air volume.
  • the indoor unit 1 is bulky and heavy.
  • FIG. 3 is a schematic cross-sectional view of a jet air duct taken along a horizontal section according to some embodiments of the present invention
  • FIG. 4 is a schematic enlarged view of part A in FIG. 3
  • the dashed arrows in FIG. 3 indicate the direction in which the airflow flows into the inlet air duct.
  • the deflector rib 42 has a convex and curved shape toward the side away from its windward surface, so that the deflector rib 42 can have a preset value on its windward side (the side where the windward surface is located).
  • the preset amount of airflow flows forward to the jet outlet 41 under the guidance of the air guide ribs 42, so that the uniformity of the jet outlet tuyere 41 in the lateral direction is achieved under the cooperation of the plurality of air guide ribs 42. out of the wind.
  • the rib 42 may include a first straight section 421 extending in a predetermined direction, and the end of the first straight section 421 faces the predetermined direction from rear to front.
  • An arc-shaped section 422 extending in a protruding and curved direction and a second straight section 423 extending forward from the end of the arc-shaped section 422 to the jet outlet 41 are provided. That is, the first straight section 421 and the second straight section 423 are perpendicular to each other, and the central angle corresponding to the arcuate section 422 is 90°.
  • the extension direction of the first straight section 421 is the same as the direction in which the airflow flows into the inlet air duct 40 , that is, a preset amount of airflow can be kept below the first straight section 421 so as to pass through the arcuate section 422 and
  • the second straight section 423 guides the flow to the jet outlet 41 , which in turn can reduce the flow resistance of the airflow after encountering the arcuate section 422 .
  • the depths in the front-rear direction of the plurality of flow guide ribs 42 arranged in sequence along the above-mentioned predetermined direction are sequentially increased. That is to say, the depths of the plurality of guide ribs 42 in the front-rear direction are gradually increased in the above-mentioned predetermined direction. Therefore, the preset airflow rate retained on the windward side of each air guide rib 42 can be made substantially the same, thereby further improving the uniformity of the air outlet of the jet device 100 in the lateral direction. Since the front end of the second straight section 423 of each air guide rib 42 extends to the jet outlet 41, the front end of each air guide rib 42 is flush. The rear end of the flow rib 42 extends rearwardly to a greater and greater depth.
  • the first straight sections 421 and the arcuate sections 422 of the plurality of flow guide ribs 42 arranged in sequence along the above-mentioned predetermined direction are respectively the same. That is to say, the length of the first straight section 421 of each air guide rib 42 extending in the preset direction is the same, and the bending angle and specific shape of the arc section 422 of each air guide rib 42 are the same, In order to obtain substantially the same diversion effect with less resistance at each diversion rib 42 .
  • the depths of the second straight sections 423 of the plurality of diverting ribs 42 arranged in sequence along the above-mentioned predetermined direction in the front-rear direction increase sequentially, so that the diversion upstream of each diverting rib 42 can be compensated for.
  • the blocking effect of the ribs 42 on the airflow enables each rib 42 to retain substantially the same amount of airflow on its windward side.
  • the depths of the second straight sections 423 of the plurality of guide ribs 42 arranged in sequence along the above-mentioned predetermined direction in the front-rear direction increase according to the same gradient.
  • the depth of the second straight section 423 of each air guide rib 42 in the front-rear direction is approximately the same as that of the second straight section 423 of the most upstream air guide rib 42
  • the depth of the straight section 423 in the front-rear direction is 0.1-0.2 times, so that a better uniform air outlet effect can be obtained at the jet outlet 41 .
  • the inner side of the end of the jet outlet 41 adjacent to the jet fan 50 is provided with an end guide rib 45 , and the end guide rib 45 is located on the upstream side of each guide rib 42 in the above-mentioned predetermined direction. That is to say, after the airflow flows into the inlet air duct 40, it first passes through the diversion effect of the end baffle ribs 45, and then passes through the diversion effect of the plurality of baffle ribs 42.
  • the end guide rib 45 has a shape that is convex and curved toward its windward side, that is, the end guide rib 45 is protruding and curved from the rear to the front toward the opposite direction to the above-mentioned preset direction. arc. In this way, part of the air flow toward the end guide ribs 45 can be guided backwards, so that it flows in a predetermined direction together with most of the other air flows, so as to prevent most of the air flowing into the jet air duct 40 from passing through the jet outlet 41 . The end of the adjacent jet fan 50 is sent out, causing the phenomenon of serious uneven air supply from the jet outlet 41 .
  • the design of the protruding direction of the end guide ribs 45 can reduce the flow resistance of the end guide ribs 45 to the airflow, and avoid the formation of a concave cavity on the windward side of the end guide ribs 45 to cause eddy currents and other undesirable phenomena.
  • the depth of the end baffle ribs 45 in the front-rear direction is set to be smaller than the depth of any one of the baffle ribs 42 in the front-rear direction. If the depth of the end guide ribs 45 in the front-rear direction is too large, the airflow at the several guide ribs 42 disposed adjacent to the end guide ribs 45 may be small, and the several guide ribs 42 cannot A sufficient amount of airflow remains on the windward side thereof, so that the uniformity of the air outlet from the jet outlet 41 in the lateral direction cannot be ensured.
  • the end baffle 45 may also have other suitable shapes, for example, it may be in the shape of a flat plate extending forward and backward, or may be in the shape of an arc that protrudes away from its windward side.
  • FIG. 5 is a schematic cross-sectional view of a jet air duct according to other embodiments of the present invention, taken along a horizontal section
  • FIG. 6 is a schematic enlarged view of part B in FIG. 5 .
  • the dashed arrows in FIG. 5 indicate the direction in which the airflow flows into the inlet air duct.
  • the baffle 42 includes a first straight section 421 extending obliquely from rear to front along the above-mentioned predetermined direction, and the end of the first straight section 421
  • the arc-shaped section 422 protruding from the rear to the front toward the above-mentioned predetermined direction and the second straight section 423 extending forward from the end of the arc-shaped section 422 to the jet outlet 41 . That is, an obtuse angle on the windward side is formed between the first straight section 421 and the second straight section 423 , and the central angle corresponding to the arcuate section 422 is greater than 90°.
  • the first straight section 421 extends obliquely from the back to the front along the above-mentioned preset direction, so that a preset amount of airflow can be kept below the first straight section 421, and at the same time, the preset amount of airflow can be kept Guided to the arcuate section 422 , thereby jointly guiding the air flow to the jet outlet 41 through the three sections, the flow resistance of the air flow is reduced.
  • the shape and size of the plurality of air guide ribs 42 can be the same, so that the air guide ribs 42 remaining on the windward side of each air guide rib 42 can be The air flow is approximately the same, so as to ensure the uniformity of the air outlet from the jet outlet 41 in the lateral direction.
  • the depth of each air guide rib 42 extending in the front-rear direction is greater than one-third of the total depth of the jet air duct 40 in the front-rear direction. One and no more than half of the total depth of the jet air duct 40 in the front-rear direction. If the depth of the air guide rib 42 relative to the jet air duct 40 is too long, the air flow at the downstream air guide rib 42 will be less, resulting in the uneven decrease of the air output from the jet outlet 41 in the preset direction. Phenomenon.
  • the jet air duct 40 is a flat air duct placed horizontally, and a flat jet cavity is defined in its interior.
  • a partial section of the jet air channel 40 may also be tapered.
  • FIG. 7 is a schematic cross-sectional view taken along a longitudinal section of a jet air duct extending in the front-rear direction according to another embodiment of the present invention.
  • the interior of the jet air duct 40 defines an air outlet cavity 43 that communicates with the jet air outlet 41 and an air collection cavity 44 that is located at the rear side of the air outlet cavity 43 and communicated with the jet fan 50, so that the inflow air
  • the natural air in the jet air duct 40 flows through the air collecting cavity 44 and the air outlet cavity 43 in sequence and then is sent out from the jet air outlet 41 .
  • the static pressure can be increased through the air collecting chamber 44, so that while ensuring a large amount of induced air, the flow direction of the airflow flowing into the air collecting chamber 44 in the lateral direction can be corrected to at least have a forward tendency to flow into the air outlet chamber 43, so as to facilitate the airflow After flowing into the air outlet cavity 43 , it flows from the rear to the front to the jet outlet 41 under the action of the guide ribs 42 .
  • the air outlet cavity 43 is tapered from the back to the front, and the guide ribs 42 are located in the air outlet cavity 43 . That is to say, when the air flows through the air outlet cavity 43, the flow area gradually decreases, and the flow velocity gradually increases, thereby increasing the air flow velocity sent by the jet device 100 and extending the air supply distance.
  • the air collecting cavity 44 defined inside the jet air duct 40 is a flat cavity placed horizontally.
  • the natural air provides a flow space with a larger cross-section, which is convenient for it to flow to the other lateral end of the jet air duct 40 under the condition of small flow resistance, so as to facilitate the formation of a relatively uniform air outlet in the lateral direction of the jet air outlet 41;
  • the flow area of the opening at the front end of the air collecting cavity 44 is relatively small, so that the natural air flowing from the air collecting cavity 44 to the air outlet cavity 43 has a relatively high flow rate.
  • the air duct wall 40a of the jet air duct 40 used to define the top of the air cavity 43 extends straight from the back to the front, and the air duct wall of the jet air duct 40 used to define the bottom of the air cavity 43 40b extends obliquely upward from the rear to the front.
  • the defined air outlet cavity 43 is tapered from the rear to the front.
  • the air duct wall 40a for defining the top of the air cavity 43 extends straight from the back to the front, so that the jet air duct 40 can abut against the casing 10 of the wall-mounted air conditioner indoor unit 1, so that the jet device 100 is integrated into the wall-mounted air conditioner.
  • the jet air outlet 41 of the jet air duct 40 is disposed adjacent to the heat exchange air outlet 11, and the structure of the wall-mounted air conditioner indoor unit 1 is more compact.
  • the air outlet cavity 43 may also be tapered from the rear to the front.
  • the air duct wall 40a for defining the top of the air cavity 43 extends obliquely downward from the rear to the front, and the air duct wall 40b for defining the bottom of the air cavity 43 extends straight from the rear to the front.
  • the air duct wall 40a for defining the top of the air cavity 43 extends obliquely downward from the rear to the front, and the air duct wall 40b for defining the bottom of the air cavity 43 slopes upward from the rear to the front.
  • the jet fan 50 is disposed on one of the lateral outer sides of the jet air duct 40 .
  • the thickness of the jet device 100 in the front-rear direction is reduced, and the width in the lateral direction is slightly wider, thereby making it more suitable for the wall-mounted air conditioner indoor unit 1 .
  • the jet device 100 is integrated into the wall-mounted air conditioner indoor unit 1, the thickness of the wall-mounted air conditioner indoor unit 1 in the front-rear direction will not be increased.
  • the width of the wall-mounted air conditioner indoor unit 1 in the lateral direction is only slightly longer than that of the traditional hanging unit. It's the same as a traditional hang-up, still very light.
  • the jet fan 50 may include a centrifugal fan 51 and a centrifugal volute 52 located outside the centrifugal fan 51 , and the centrifugal volute 52 and the jet air passage 40 are in sealing communication through the air guide passage 60 . Since the centrifugal volute 52 is oriented downward, the lateral end of the jet air duct 40 communicating with the jet fan 50 is oriented horizontally, and the two are oriented perpendicular to each other. If they are directly connected, it is not conducive to airflow.
  • the air guide channel 60 is arranged between the two as a section for the airflow buffering and reversing, which can reduce the airflow resistance.
  • the air guide channel 60 first bends and extends to the lateral outer side of the casing 10 from top to bottom, and then bends and extends to the lateral inner side of the casing 10 to smoothly communicate with the centrifugal volute 52 and the jet air duct 40 . Therefore, by slightly extending the air flow path between the centrifugal volute 52 and the jet air duct 40, the air flow can be reversed under the premise of less flow resistance, thereby ensuring a higher flow speed of the air flow.
  • the extension of the airflow path between the centrifugal volute 52 and the jet air duct 40 is very small, and hardly affects the airflow velocity.
  • the present invention also provides a wall-mounted air conditioner indoor unit 1, which includes a casing 10, and the casing 10 is provided with a heat exchange airflow outlet 11 extending laterally for sending out the heat exchange airflow.
  • 8 is a schematic cross-sectional view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention
  • FIG. 9 is a schematic structural diagram of the wall-mounted air conditioner indoor unit according to an embodiment of the present invention with the casing hidden.
  • the inside of the casing 10 may be provided with a heat exchanger 20 and a fan 30, and the heat exchanger 20 may exchange heat with the air flow passing therethrough, thereby generating the heat exchange air flow.
  • the fan 30 can promote the heat exchange airflow in the casing 10 to be sent out through the heat exchange airflow outlet 11 .
  • the top of the casing 10 is provided with a main air inlet 12, and the heat exchanger 20 can be arranged on the air flow path between the main air inlet 12 and the fan 30 to conduct heat with the airflow entering the casing 10 through the main air inlet 12. exchange.
  • the cabinet 10 may include a cover 13 on the rear side, a front panel 14 on the front side, and two end plates 16 on both lateral sides, the cover 13 , the front panel 14 and the two end plates 16 are matched and connected.
  • the wall-mounted air conditioner indoor unit 1 further includes the jet device 100 described in any of the above embodiments.
  • the jet device 100 is used to controllably make the air flow outside it flow into its interior and send out through the jet outlet 41, and make the air flow sent out through the jet outlet 41 mix with the heat exchange air flow out through the heat exchange air outlet 11, Thus, a relatively soft mixed air is formed, which avoids overcooling or overheating of the outlet air from the wall-mounted air conditioner indoor unit 1, and improves its comfort experience.
  • the heat exchange airflow outlet 11 is a bar-shaped outlet opened at the bottom of the front side of the casing 10 and extending laterally along the casing 10 , and the jet air outlet 41 of the jet air duct 40 can be disposed adjacent to the heat exchange airflow outlet 11 , so that the heat exchange airflow sent from the heat exchange airflow outlet 11 is better mixed with the natural air sent from the jet air outlet 41 , thereby ensuring that the air outlet from the wall-mounted air conditioner indoor unit 1 is more gentle.
  • the lengths of the heat exchange air outlet 11 and the jet air outlet 41 extending in the lateral direction are approximately the same, so as to further improve the mixing effect between the two air streams sent from the two air outlets.
  • the jet fan 50 of the jet device 100 is disposed on one of the lateral sides in the casing 10 . Therefore, it is only necessary to leave a space for accommodating the jet fan 50 in one of the lateral sides of the casing 10 , without occupying the space in the front-rear direction of the casing 10 , and without installing a fan shielding device. On the one hand, it is ensured that the casing 10 of the entire wall-mounted air conditioner indoor unit 1 is still intact, so as to maintain a good aesthetic effect. It is slightly longer than the traditional hanging machine, the shape is the same as that of the traditional hanging machine, other aspects are the same as the traditional hanging machine, and it is still very light.
  • the lateral side panels of the casing 10 disposed adjacent to the jet fan 50 are provided with a jet air inlet 15 communicating with the air inlet of the jet fan 50, so as to allow the air outside the wall-mounted air conditioner indoor unit 1 to pass through.
  • the jet air inlet 15 flows toward the jet fan 50 .
  • the jet air inlet 15 may be opened on the end plate 16 and part of the casing 13 .
  • the air inlet of the jet fan 50 may face the jet air inlet 15 , that is, the air inlet of the jet fan 50 faces the lateral outer side of the casing 10 . In this way, the jet air inlet 15 and the main air inlet 12 are located on two different sides of the casing 10 respectively.
  • the air intake of the two air inlets does not interfere with each other.
  • the size of the main air inlet 12 is reduced, the total flow area of the air inlet of the wall-mounted air conditioner indoor unit 1 is increased, and the air intake volume thereof is increased.
  • the jet air duct 40 is disposed at the bottom of the casing 10 adjacent to the casing 10 . That is to say, the jet air duct 40 is disposed at the bottom of the casing 10 and abuts against the bottom surface of the casing 10 , so that the heat exchange airflow outlet 11 at the bottom of the front side of the casing 10 and the front side of the jet air duct 40 The jet outlet 41 is adjacently arranged.
  • FIG. 10 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to another embodiment of the present invention.
  • the jet air duct 40 and the casing 10 are disposed below the casing 10 at intervals, so as to form a drainage air duct 80 between the heat exchange air outlet 11 and the jet air outlet 41 . That is to say, the two sides of the drainage air duct are the heat exchange air outlet 11 and the jet outlet 41 respectively. With the air supply from the heat exchange air outlet 11 and the jet outlet 41, negative pressure will be generated on both sides of the drainage air duct 80.
  • the airflow introduced into the drainage duct 80 is relatively large under the action of negative pressure on both sides, and the natural air introduced through the drainage duct 80 and the natural air sent out through the jet outlet 41 and the heat exchange airflow outlet 11 are sent out.
  • the heat exchange airflow is mixed, which further improves the overall induced air volume and overall air supply volume of the wall-mounted air conditioner indoor unit.
  • the casing 10 further includes a frame 70 for supporting the heat exchanger 20 and the fan 30 , and the jet fan 50 is located at one of the lateral outer sides of the frame 70 , so that the jet fan 50 is connected to other structures in the casing 10 .
  • the layout between them is more compact, thereby reducing the volume of the wall-mounted air conditioner indoor unit 1 .
  • the jet fan 50 can be fixedly supported on the frame 70 , which avoids additionally providing other fan support structures and simplifies the structure of the wall-mounted air conditioner indoor unit 1 .
  • the other lateral end of the jet air duct 40 can be fixedly connected with the frame 70, so as to avoid the inclination of the jet air duct 40 caused by the suspension of the other lateral end of the jet air duct 40. or shaking.
  • the fan 30 is a cross-flow fan whose rotation axis extends in the lateral direction of the casing 10 , and has a large air supply volume and a large air supply range in the lateral direction.

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Abstract

用于壁挂式空调室内机（1）的射流装置（100）及壁挂式空调室内机（1），其中，壁挂式空调室内机（1）包括机壳（10），机壳（10）上开设有沿横向延伸的换热气流出口（11）。射流装置（100）包括：射流风道（40），其前侧开设有沿横向延伸的射流出风口（41）；以及射流风机（50），与射流风道（40）的其中一个横向侧部相连通，以受控地驱动射流装置（100）外部的空气沿与横向平行的预设方向流入射流风道（40）、并从射流出风口（41）送出，从而使得经射流出风口（41）流出的未经换热的自然空气与经换热气流出口（11）送出的换热气流相混合。射流风道（40）的内部设有多个沿横向间隔排列的导流筋（42），以将沿横向流入射流风道（40）的自然空气导流成由后向前地流向射流出风口（41），确保了横向延伸的射流出风口（41）任意位置处的正常送风，且引风量较大。

Description

用于壁挂式空调室内机的射流装置及壁挂式空调室内机 技术领域
本发明涉及空调技术领域，特别是涉及一种用于壁挂式空调室内机的射流装置及壁挂式空调室内机。
背景技术
随着空调的普及，用户对送风的舒适性和健康性的要求越来越高。对于传统壁挂式空调室内机来说，风量与噪声是两个相互矛盾的参数，因此其最大出风量被限制在一定范围。并且，空调吹出的冷风温度较低，直吹到人后，会引起身体不适，影响用户体验。
为此，现有的一些壁挂式空调室内机设计了引流方案，主要是利用出风口处的气流带动引流风口出风，这虽然可达到自然空气与换热气流混合的效果，但引风量较少，用户实际体验到的柔和送风的效果不是太明显。现有技术中还有一些壁挂式空调室内机在其机壳外的后侧额外增加了一个引风模块，引风模块内设置引风机，通过引风机驱动室内空气流向射流通道，并从射流通道流出，从而提高引风量。然而，现有技术中，气流流入射流通道的方向与流出射流通道的方向基本是一致的，这就严格地限制了引风机乃至整个引风模块的布置位置必须处于射流通道的出口后侧，进而导致壁挂式空调室内机体积庞大、厚重等问题。
发明内容
本发明第一方面的一个目的旨在克服现有技术的至少一个缺陷，提供一种用于壁挂式空调室内机的引风量较大、占用空间较小的射流装置。
本发明第一方面的一个进一步的目的是进一步提高射流装置在横向上的出风均匀性。
本发明第一方面的另一个进一步的目的是提高射流装置的出风速度、延长其送风距离。
本发明第二方面的目的是提供一种具有上述射流装置的壁挂式空调室内机。
根据本发明的第一方面，本发明提供一种用于壁挂式空调室内机的射流装置，所述壁挂式空调室内机包括机壳，所述机壳上开设有沿横向延伸以用 于送出换热气流的换热气流出口，其中，所述射流装置包括：
射流风道，其前侧开设有沿横向延伸的射流出风口；以及
射流风机，与所述射流风道的其中一个横向侧部相连通，以受控地驱动所述射流装置外部的空气沿与横向平行的预设方向流入所述射流风道、并从所述射流出风口送出，从而使得经所述射流出风口流出的未经换热的自然空气与经所述换热气流出口送出的换热气流相混合；且
所述射流风道的内部设有多个沿横向间隔排列的导流筋，以将沿横向流入所述射流风道的自然空气导流成由后向前地流向所述射流出风口。
可选地，所述导流筋具有朝背离其迎风面的一侧凸出弯曲的形状。
可选地，所述导流筋包括沿所述预设方向延伸的第一平直区段、由所述第一平直区段的末端由后向前地朝所述预设方向凸出弯曲延伸的弧形区段和由所述弧形区段的末端向前延伸至所述射流出风口的第二平直区段。
可选地，沿所述预设方向依次排列的多个所述导流筋在前后方向上的深度依次增大。
可选地，所述射流出风口的邻近射流风机的端部内侧设有端部导流筋，所述端部导流筋在所述预设方向上处于各个所述导流筋的上游侧；且
所述端部导流筋具有朝其迎风侧凸出弯曲的形状。
可选地，所述端部导流筋在前后方向上的深度小于任一个所述导流筋在前后方向上的深度。
可选地，所述导流筋包括沿所述预设方向由后向前地倾斜延伸的第一平直区段、由所述第一平直区段的末端由后向前地朝所述预设方向凸出弯曲延伸的弧形区段和由所述弧形区段的末端向前延伸至所述射流出风口的第二平直区段；且
多个所述导流筋的形状和尺寸均相同。
可选地，所述射流风道的内部限定有与所述射流出风口连通的出风腔和处于所述出风腔的后侧并与所述射流风机连通的集气腔，以使得流入所述射流风道的自然空气依次流经所述集气腔和所述出风腔后从所述射流出风口送出；且
所述出风腔由后向前地渐缩，所述导流筋位于所述出风腔内。
可选地，所述射流风机设置在所述射流风道的其中一个横向外侧，且包括离心风扇和位于所述离心风扇外部的离心蜗壳，
所述离心蜗壳与所述射流风道之间通过导风通道密封地连通；且
所述导风通道从上往下地先向所述射流风道的横向外侧弯曲延伸、再向所述射流风道的横向内侧弯曲延伸，以同时与所述离心蜗壳和所述射流风道平滑地连通。
根据本发明的第二方面，本发明还提供一种壁挂式空调室内机，其包括：
机壳，其上开设有沿横向延伸以用于送出换热气流的换热气流出口；以及
上述任一方案所述的射流装置，用于受控地促使其外部的气流流入其内部并经其射流出风口送出、且使得经所述射流出风口送出的气流与经所述换热气流出口流出的换热气流相混合。
本发明的射流装置具有射流风道和射流风机，可通过射流风机主动地将外部空气射入射流风道内，相比于现有技术中利用负压被动引流的方式，本申请通过设置射流风机主动射流，射流风量大大提高，送风距离增加。并且，射流风道内设有多个沿横向间隔排列的导流筋，可通过导流筋将沿横向流入射流风道的自然空气导流成由后向前地流向射流出风口，不但确保了横向延伸的射流出风口任意位置处的正常送风，而且还允许射流风机设置在除射流风道后侧的其他位置，例如设置在射流风道的横向外侧，减小了整个射流装置在前后方向上所占用的体积，使得射流装置的结构布局更加适用于壁挂式空调室内机，避免将射流装置集成在壁挂式空调室内机后导致壁挂式空调室内机体积庞大、厚重的问题。
进一步地，导流筋具有朝背离其迎风面的一侧凸出弯曲的形状，由此，可使得导流筋具有在其迎风面的一侧保留预设量的气流的能力，该预设量的气流在导流筋的引导作用下流向射流出风口，从而在多个导流筋的配合下实现射流出风口在横向上的均匀出风。
进一步地，射流风道的内部限定有集气腔和出风腔，集气腔与射流风机连通，可通过集气腔增加静压，从而在确保较大引风量的同时将沿横向流入集气腔的气流流向矫正为至少具有向前流入出风腔的趋势，以便于气流流入出风腔后在导流筋的作用下由后向前地流向射流出风口。并且，出风腔由后向前减缩，降低了气流流动阻力、提高了流向射流出风口的气流流速，从而提高了射流装置的出风速度、延长了其送风距离。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将 会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的壁挂式空调室内机的示意性结构图；
图2是根据本发明一个实施例的射流装置的示意性结构图；
图3是根据本发明一些实施例的射流风道沿水平剖切面截取的示意性剖视图；
图4是图3中部分A的示意性放大图；
图5是根据本发明另一些实施例的射流风道沿水平剖切面截取的示意性剖视图；
图6是图5中部分B的示意性放大图；
图7是根据本发明另一个实施例的射流风道沿前后方向延伸的纵截面截取的示意性剖视图；
图8是根据本发明一个实施例的壁挂式空调室内机的示意性剖视图；
图9是根据本发明一个实施例的壁挂式空调室内机隐去机壳后的示意性结构图；
图10是根据本发明另一个实施例的壁挂式空调室内机的示意性结构图。
具体实施方式
本发明首先提供一种用于壁挂式空调室内机的射流装置。壁挂式空调室内机为通常挂设在墙壁或其他支撑位置处使用的空调室内机。图1是根据本发明一个实施例的壁挂式空调室内机的示意性结构图，本发明涉及的壁挂式空调室内机1包括机壳10，其上开设有沿横向延伸以用于送出换热气流的换热气流出口11(图1中未示出换热气流出口，图1中的换热气流出口被导风板覆盖)。
图2是根据本发明一个实施例的射流装置的示意性结构图。参见图2，本发明的射流装置100应用于上述壁挂式空调室内机1，且包括射流风道40和射流风机50。射流风道40的前侧开设有沿横向延伸的射流出风口41，以便于朝前送风，从而使得射流装置100适用于朝前送风的大部分壁挂式空调 室内机。射流风机50与射流风道40的其中一个横向侧部相连通，以受控地驱动射流装置100外部的空气沿与横向平行的预设方向流入射流风道40、并从射流出风口41送出，从而使得经射流出风口41流出的未经换热的自然空气与经换热气流出口11送出的换热气流相混合。也就是说，可通过射流风机50主动地将外部空气射入射流风道40内，相比于现有技术中利用负压被动引流的方式，本申请通过设置射流风机50主动射流，射流风量大大提高，送风距离增加。上述预设方向与横向平行，其可以为从左至右的方向，也可以为从右至左的方向。
由于射流出风口41位于射流风道40的前侧，并沿横向延伸，且射流风机50与射流风道40的其中一个横向端部连通，因此，流入射流风道40的气流流向与流出射流风道40的气流流向相互垂直。也就是说，气流在射流风道40内需要换向大致90度。为此，射流风道40的内部特别地设有多个沿横向间隔排列的导流筋42，以将沿横向流入射流风道40的自然空气导流成由后向前地流向射流出风口41。也就是说，可通过导流筋42将射流风道40内横向流动的自然空气比较均匀地导流至射流出风口41，使得从换热气流出口41任一处流出的换热气流均能够与从射流出风口41流出的自然空气相混合，从而在出风温度和出风量两方面提高了壁挂式空调室内机1在横向上的出风均匀性。这不但确保了横向延伸的射流出风口41任意位置处的正常送风，而且还允许射流风机50设置在除射流风道40后侧的其他位置，例如设置在射流风道40的横向外侧，减小了整个射流装置100在前后方向上所占用的体积，使得射流装置100的结构布局更加适用于壁挂式空调室内机1，避免将射流装置100集成在壁挂式空调室内机1后导致壁挂式空调室内机1体积庞大、厚重的问题。
图3是根据本发明一些实施例的射流风道沿水平剖切面截取的示意性剖视图，图4是图3中部分A的示意性放大图。图3中的虚线箭头表示气流流入射流风道的方向。在一些实施例中，导流筋42具有朝背离其迎风面的一侧凸出弯曲的形状，由此，可使得导流筋42具有在其迎风侧(迎风面所在的一侧)保留预设量的气流的能力，该预设量的气流在导流筋42的引导作用下向前流向射流出风口41，从而在多个导流筋42的配合下实现射流出风口41在横向上的均匀出风。
在一些实施例中，参见图3和图4，导流筋42可包括沿预设方向延伸的 第一平直区段421、由第一平直区段421的末端由后向前地朝预设方向凸出弯曲延伸的弧形区段422和由弧形区段422的末端向前延伸至射流出风口41的第二平直区段423。也就是说，第一平直区段421与第二平直区段423相互垂直，弧形区段422所对应的圆心角为90°。第一平直区段421的延伸方向与气流流入射流风道40的方向相同，既可以将预设量的气流保留在第一平直区段421的下方，以便于通过弧形区段422和第二平直区段423将其导流至射流出风口41，又可以减小气流遇到弧形区段422后的流动阻力。
进一步地，沿上述预设方向依次排列的多个导流筋42在前后方向上的深度依次增大。也就是说，多个导流筋42在前后方向上的深度在上述预设方向上呈阶梯状递增。由此，可使得被保留在每个导流筋42的迎风侧的预设气流量基本相同，从而进一步提高了射流装置100在横向上的出风均匀性。由于每个导流筋42的第二平直区段423的前端均延伸至射流出风口41，因此，各个导流筋42的前端是平齐的，沿上述预设方向依次排列的多个导流筋42的后端向后延伸的深度越来越大。
具体地，沿上述预设方向依次排列的多个导流筋42的第一平直区段421和弧形区段422均分别相同。也就是说，每个导流筋42的第一平直区段421在预设方向上延伸的长度均相同，每个导流筋42的弧形区段422的弯曲角度、具体形状均相同，以在每个导流筋42处均取得大致相同的阻力较小的导流效果。进一步地，沿上述预设方向依次排列的多个导流筋42的第二平直区段423在前后方向上的深度依次增大，由此，可弥补每个导流筋42上游的导流筋42对气流的阻挡作用，使得每个导流筋42均能够将基本相同量的气流保留在其迎风面一侧。
进一步地，沿上述预设方向依次排列的多个导流筋42的第二平直区段423在前后方向上的深度按照相同的梯度递增。对于在横向上具有特定宽度的射流风道40来说，各个导流筋42的第二平直区段423在前后方向上的深度递增的幅度大致为处于最上游的导流筋42的第二平直区段423在前后方向上的深度的0.1～0.2倍，由此可以在射流出风口41处取得较佳的均匀出风效果。
在一些实施例中，射流出风口41的邻近射流风机50的端部内侧设有端部导流筋45，端部导流筋45在上述预设方向上处于各个导流筋42的上游侧。也就是说，气流流入射流风道40后首先经过端部导流筋45的导流作用，然 后再经过多个导流筋42的导流作用。
进一步地，端部导流筋45具有朝其迎风侧凸出弯曲的形状，也就是说，端部导流筋45呈由后向前地朝与上述预设方向相反的方向凸出弯曲延伸的弧形。由此，可将流向端部导流筋45的部分气流朝后引导，使其与其他大部分气流共同地沿预设方向流动，避免流入射流风道40内的大部分气流经射流出风口41的邻近射流风机50的端部送出造成射流出风口41送风严重不均的现象。并且，端部导流筋45的凸出方向设计可以减小端部导流筋45对气流的流动阻力，避免在端部导流筋45的迎风侧形成凹腔导致涡流等不良现象。
更进一步地，为了确保射流出风口41在横向上的出风均匀性，端部导流筋45在前后方向上的深度设置成小于任一个导流筋42在前后方向上的深度。若端部导流筋45在前后方向上的深度过大，则可能导致与端部导流筋45邻近设置的若干个导流筋42处的气流量较小，若干个导流筋42无法将足够量的气流保留在其迎风面一侧，因此无法确保射流出风口41在横向上的出风均匀性。
在一些替代性实施例中，端部导流筋45还可以具有其他合适的形状，例如其可以呈前后延伸的平板状、也可以呈朝背离其迎风侧凸出的弧形。
图5是根据本发明另一些实施例的射流风道沿水平剖切面截取的示意性剖视图，图6是图5中部分B的示意性放大图。图5中的虚线箭头表示气流流入射流风道的方向。参见图5和图6，在另一些实施例中，导流筋42包括沿上述预设方向由后向前地倾斜延伸的第一平直区段421、由第一平直区段421的末端由后向前地朝上述预设方向凸出弯曲延伸的弧形区段422和由弧形区段422的末端向前延伸至射流出风口41的第二平直区段423。也就是说，第一平直区段421与第二平直区段423之间形成处于迎风侧的钝角，弧形区段422所对应的圆心角大于90°。第一平直区段421沿上述预设方向由后向前地倾斜延伸，既可以将预设量的气流保留在第一平直区段421的下方，同时又能够将该预设量的气流引导至弧形区段422，从而通过三个区段共同地将气流引导至射流出风口41，减小了气流的流动阻力。
进一步地，对于具有图5和图6所示实施例的导流筋42来说，多个导流筋42的形状和尺寸均可以相同，就可以使得保留在每个导流筋42迎风侧的气流量大致相同，从而确保射流出风口41在横向上的出风均匀性。
进一步地，对于具有图5和图6所示实施例的导流筋42来说，每个导流筋42在前后方向上延伸的深度大于射流风道40在前后方向上的总深度的三分之一且不超过射流风道40在前后方向上的总深度的一半。若导流筋42相对于射流风道40的深度过长，则流向下游的导流筋42处的气流量较少，从而导致射流出风口41的出风量在预设方向上依次减少的不均现象。若导流筋42相对于射流风道40的深度过短，保留在导流筋42迎风侧的气流量非常少，大部分气流都流向射流风道40的另一个横向端部，从而导致射流出风口41在横向上的出风严重不均的现象。
在图2所示实施例中，射流风道40为水平放置的扁平风道，其内部限定有扁平的射流腔。在另一些实施例中，射流风道40的部分区段也可呈锥形。例如，图7是根据本发明另一个实施例的射流风道沿前后方向延伸的纵截面截取的示意性剖视图。在另一些实施例中，射流风道40的内部限定有与射流出风口41连通的出风腔43和处于出风腔43的后侧并与射流风机50连通的集气腔44，以使得流入射流风道40的自然空气依次流经集气腔44和出风腔43后从射流出风口41送出。由此，可通过集气腔44增加静压，从而在确保较大引风量的同时将沿横向流入集气腔44的气流流向矫正为至少具有向前流入出风腔43的趋势，以便于气流流入出风腔43后在导流筋42的作用下由后向前地流向射流出风口41。
进一步地，出风腔43由后向前地渐缩，导流筋42位于出风腔43内。也就是说，气流在流经出风腔43时，过流面积逐渐减小，流动速度逐渐增大，从而提高了射流装置100送出的气流流速、延长了其送风距离。
具体地，射流风道40的内部限定的集气腔44为水平放置的扁平腔体，一方面，集气腔44可以为从射流风道40的其中一个横向端部流入射流风道40内的自然空气提供截面较大的流动空间，便于其在流动阻力较小的情况下流向射流风道40的另一个横向端部，从而便于在射流出风口41的横向上形成比较均匀的出风；另一方面，集气腔44前端开口的过流面积相对较小，可以使得从集气腔44流向出风腔43的自然空气具有相对较高的流速。
在一些实施例中，射流风道40的用于限定出风腔43顶部的风道壁40a由后向前地平直延伸，射流风道40的用于限定出风腔43底部的风道壁40b由后向前地朝上倾斜延伸。由此，限定出的出风腔43由后向前地渐缩。用于限定出风腔43顶部的风道壁40a由后向前地平直延伸，便于射流风道40 与壁挂式空调室内机1的机壳10相抵接，从而在射流装置100集成于壁挂式空调室内机1后使得射流风道40的射流出风口41与换热气流出口11邻近设置，并且使得壁挂式空调室内机1的结构更加紧凑。
在一些替代性实施例中，出风腔43还可以呈其他由后向前渐缩的锥形。例如，用于限定出风腔43顶部的风道壁40a由后向前地朝下倾斜延伸，用于限定出风腔43底部的风道壁40b由后向前地平直延伸。再如，用于限定出风腔43顶部的风道壁40a由后向前地朝下倾斜延伸，用于限定出风腔43底部的风道壁40b由后向前地向上倾斜延伸。
在一些实施例中，射流风机50设置在射流风道40的其中一个横向外侧。由此，减小了射流装置100在前后方向上的厚度，使其横向上的宽度稍宽，从而使其更适用于壁挂式空调室内机1。当射流装置100集成于壁挂式空调室内机1后，不会增加壁挂式空调室内机1在前后方向上的厚度，壁挂式空调室内机1仅在横向上的宽度比传统挂机稍长，其他方面与传统挂机无异，仍然非常轻便。
进一步地，射流风机50可包括离心风扇51和位于离心风扇51外部的离心蜗壳52，离心蜗壳52与射流风道40之间通过导风通道60密封地连通。由于离心蜗壳52的朝向向下，射流风道40的与射流风机50连通的横向端部的朝向为水平方向，二者朝向相互垂直，若直接相连通，不利于气流流动。在二者之间设置导风通道60作为气流缓冲换向的区段，可以减小气流流动阻力。
进一步地，导风通道60从上往下地先向机壳10的横向外侧弯曲延伸、再向机壳10的横向内侧弯曲延伸，以同时与离心蜗壳52和射流风道40平滑地连通。由此，通过稍微地延长离心蜗壳52与射流风道40之间的气流流动路径的方式使得气流在较小流动阻力的前提下完成换向，保证了气流较高的流动速度。而离心蜗壳52与射流风道40之间的气流流动路径的延长是非常小的，几乎不会对气流流速产生影响。
本发明还提供一种壁挂式空调室内机1，其包括机壳10，机壳10上开设有沿横向延伸以用于送出换热气流的换热气流出口11。图8是根据本发明一个实施例的壁挂式空调室内机的示意性剖视图，图9是根据本发明一个实施例的壁挂式空调室内机隐去机壳后的示意性结构图。机壳10的内部可设有换热器20和风机30，换热器20可以与流经其的气流进行热交换，从而产 生换热气流。风机30可促使机壳10内的换热气流经换热气流出口11送出。机壳10的顶部开设有主进风口12，换热器20可设置在主进风口12和风机30之间的气流流动路径上，以与经主进风口12进入机壳10内的气流进行热交换。机壳10可包括处于后侧的罩壳13和处于前侧的前面板14、以及处于横向两侧的两个端板16，罩壳13、前面板14和两个端板16匹配连接。
特别地，壁挂式空调室内机1还包括上述任一实施例所描述的射流装置100。射流装置100用于受控地促使其外部的气流流入其内部并经其射流出风口41送出、且使得经射流出风口41送出的气流与经换热气流出口11流出的换热气流相混合，从而形成比较柔和的混合风，避免了壁挂式空调室内机1出风过冷或过热，提高了其舒适性体验。
在一些实施例中，换热气流出口11为开设在机壳10前侧底部并沿机壳10横向延伸的条形出口，射流风道40的射流出风口41可与换热气流出口11邻近设置，以便于从换热气流出口11送出的换热气流与从射流出风口41送出的自然空气更好地混合，从而确保壁挂式空调室内机1的出风更加柔和。换热气流出口11和射流出风口41在横向上延伸的长度大致相同，以进一步提高从两个出风口送出的两股气流之间的混合效果。
进一步地，射流装置100的射流风机50设置在机壳10内的其中一个横向侧部。由此，只需要在机壳10内的其中一个横向侧部留有容纳射流风机50的空间即可，不占用机壳10在前后方向上的空间，也无需设置风机遮蔽装置。一方面，确保了整个壁挂式空调室内机1的机壳10仍然是完整的，从而使其保持较好的美观效果，另一方面，本申请的壁挂式空调室内机1仅在横向上的宽度比传统挂机稍长，形状与传统挂机的形状一致，其他方面与传统挂机无异，仍然非常轻便。
在一些实施例中，机壳10的与射流风机50邻近设置的横向侧板上开设有与射流风机50的气流入口相连通的射流进风口15，以允许壁挂式空调室内机1外部的空气经射流进风口15流向射流风机50。具体地，射流进风口15可开设在端板16和部分罩壳13上。射流风机50的气流入口可朝向射流进风口15，即射流风机50的气流入口朝机壳10的横向外侧。如此设置，射流进风口15与主进风口12分别处于机壳10的两个不同的侧面，一方面，两个进风口的进风互不干扰，另一方面，射流进风口15的设置不会减小主进风口12的大小，增大了壁挂式空调室内机1的进风口总过流面积，提高 了其进风量。
在一些实施例中，参见图1，射流风道40与机壳10相邻接地设置在机壳10的底部。也就是说，射流风道40设置于机壳10的底部，并与机壳10的底表面相抵接，以使得处于机壳10前侧底部的换热气流出口11与处于射流风道40前侧的射流出风口41邻近设置。
图10是根据本发明另一个实施例的壁挂式空调室内机的示意性结构图。在另一些实施例中，射流风道40与机壳10间隔地设置于机壳10的下方，以在换热气流出口11和射流出风口41之间形成引流风道80。也就是说，引流风道的两侧分别为换热气流出口11和射流出风口41，随着换热气流出口11和射流出风口41的送风，引流风道80的两侧都会产生负压，因此，在两侧的负压作用下引入引流风道80内的气流量比较大，经引流风道80引入的自然空气与经射流出风口41送出的自然空气和经换热气流出口11送出的换热气流相混合，进一步提高了壁挂式空调室内机的整体引风量和整体送风量。
在一些实施例中，机壳10还包括用于支撑换热器20和风机30的骨架70，射流风机50处于骨架70的其中一个横向外侧，以使得射流风机50与机壳10内的其他结构之间的布局更加紧凑，从而减小了壁挂式空调室内机1的体积。具体地，射流风机50可固定支撑在骨架70上，避免了额外设置其他风机支撑结构，简化了壁挂式空调室内机1的结构。
进一步地，为了提高射流风道40的结构稳定性，射流风道40的另一个横向端部可与骨架70固定连接，避免射流风道40的另一个横向端部悬空设置导致射流风道40倾斜或晃动。
在一些实施例中，风机30为转动轴沿机壳10的横向延伸的贯流风机，送风量较大，且横向上的送风范围较大。
本领域技术人员还应理解，本发明实施例中所称的“上”、“下”、“前”、“后”等用于表示方位或位置关系的用语是是以射流装置100应用到壁挂式空调室内机1后的实际使用状态为基准而言的，这些用语仅是为了便于描述和理解本发明的技术方案，而不是指示或暗示所指的装置或不见必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根 据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种用于壁挂式空调室内机的射流装置，所述壁挂式空调室内机包括机壳，所述机壳上开设有沿横向延伸以用于送出换热气流的换热气流出口，其特征在于，所述射流装置包括：
    射流风道，其前侧开设有沿横向延伸的射流出风口；以及
    射流风机，与所述射流风道的其中一个横向侧部相连通，以受控地驱动所述射流装置外部的空气沿与横向平行的预设方向流入所述射流风道、并从所述射流出风口送出，从而使得经所述射流出风口流出的未经换热的自然空气与经所述换热气流出口送出的换热气流相混合；且
    所述射流风道的内部设有多个沿横向间隔排列的导流筋，以将沿横向流入所述射流风道的自然空气导流成由后向前地流向所述射流出风口。
  2. 根据权利要求1所述的射流装置，其特征在于，
    所述导流筋具有朝背离其迎风面的一侧凸出弯曲的形状。
  3. 根据权利要求2所述的射流装置，其特征在于，
    所述导流筋包括沿所述预设方向延伸的第一平直区段、由所述第一平直区段的末端由后向前地朝所述预设方向凸出弯曲延伸的弧形区段和由所述弧形区段的末端向前延伸至所述射流出风口的第二平直区段。
  4. 根据权利要求3所述的射流装置，其特征在于，
    沿所述预设方向依次排列的多个所述导流筋在前后方向上的深度依次增大。
  5. 根据权利要求2所述的射流装置，其特征在于，
    所述射流出风口的邻近所述射流风机的端部内侧设有端部导流筋，所述端部导流筋在所述预设方向上处于各个所述导流筋的上游侧；且
    所述端部导流筋具有朝其迎风侧凸出弯曲的形状。
  6. 根据权利要求5所述的射流装置，其特征在于，
    所述端部导流筋在前后方向上的深度小于任一个所述导流筋在前后方 向上的深度。
  7. 根据权利要求2所述的射流装置，其特征在于，
    所述导流筋包括沿所述预设方向由后向前地倾斜延伸的第一平直区段、由所述第一平直区段的末端由后向前地朝所述预设方向凸出弯曲延伸的弧形区段和由所述弧形区段的末端向前延伸至所述射流出风口的第二平直区段；且
    多个所述导流筋的形状和尺寸均相同。
  8. 根据权利要求1所述的射流装置，其特征在于，
    所述射流风道的内部限定有与所述射流出风口连通的出风腔和处于所述出风腔的后侧并与所述射流风机连通的集气腔，以使得流入所述射流风道的自然空气依次流经所述集气腔和所述出风腔后从所述射流出风口送出；且所述出风腔由后向前地渐缩，所述导流筋位于所述出风腔内。
  9. 根据权利要求1所述的射流装置，其特征在于，
    所述射流风机设置在所述射流风道的其中一个横向外侧，且包括离心风扇和位于所述离心风扇外部的离心蜗壳，
    所述离心蜗壳与所述射流风道之间通过导风通道密封地连通；且
    所述导风通道从上往下地先向所述射流风道的横向外侧弯曲延伸、再向所述射流风道的横向内侧弯曲延伸，以同时与所述离心蜗壳和所述射流风道平滑地连通。
  10. 一种壁挂式空调室内机，其特征在于，包括：
    机壳，其上开设有沿横向延伸以用于送出换热气流的换热气流出口；以及
    权利要求1-9任一所述的射流装置，用于受控地促使其外部的气流流入其内部并经其射流出风口送出、且使得经所述射流出风口送出的气流与经所述换热气流出口流出的换热气流相混合。
PCT/CN2021/124122 2020-08-19 2021-10-15 用于壁挂式空调室内机的射流装置及壁挂式空调室内机 WO2022037722A1 (zh)

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