WO2021223648A1 - Jet device for cabinet air conditioner indoor unit and cabinet air conditioner indoor unit - Google Patents

Jet device for cabinet air conditioner indoor unit and cabinet air conditioner indoor unit Download PDF

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Publication number
WO2021223648A1
WO2021223648A1 PCT/CN2021/090685 CN2021090685W WO2021223648A1 WO 2021223648 A1 WO2021223648 A1 WO 2021223648A1 CN 2021090685 W CN2021090685 W CN 2021090685W WO 2021223648 A1 WO2021223648 A1 WO 2021223648A1
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WIPO (PCT)
Prior art keywords
air outlet
air
arc
jet device
shaped
Prior art date
Application number
PCT/CN2021/090685
Other languages
French (fr)
Chinese (zh)
Inventor
尹晓英
袁俊军
李英舒
张蕾
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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Application filed by 青岛海尔空调器有限总公司, 海尔智家股份有限公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2021223648A1 publication Critical patent/WO2021223648A1/en

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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
    • F24F1/0011—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
    • 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
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • 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
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve

Definitions

  • the present invention relates to the technical field of air conditioners, in particular to a jet device used for a cabinet-type air conditioner indoor unit and a cabinet-type air conditioner indoor unit.
  • the applicant of the present invention has designed a dual-flow air-conditioning indoor unit, in which two sets of cross-flow fans are arranged in the shell, and the two sets of cross-flow fans are respectively provided on both sides of the shell with air inlets corresponding to the two sets of cross-flow fans.
  • the part forms an air outlet to improve the air supply efficiency.
  • an air inlet is formed at the rear of the housing and between the two air inlets, and a through ventilation duct is formed on the housing and/or inside the housing.
  • One end is connected to the air outlet, and the other end is connected to the air inlet.
  • the air from the air outlet can form a negative pressure in the through ventilation duct.
  • the indoor non-heat exchange air can be introduced into the through ventilation duct through the air inlet, so that the non-heat exchange air is connected to the air outlet.
  • the heat exchange air is mixed and sent to the room to achieve the purpose of comfortable air supply.
  • non-heat-exchanged air is passively introduced into the through ventilation duct under the negative pressure generated by the outlet air.
  • the induced air volume is relatively small, and the amount of induced air volume is easily affected by the speed of the cross flow fan, the size of the air inlet, the shape of the through ventilation duct, etc. The influence of many factors is very unstable and difficult to control or adjust.
  • An objective of the first aspect of the present invention is to overcome at least one technical defect of the prior art and provide a jet device capable of active jet for a cabinet air conditioner indoor unit, so as to improve the cabinet air conditioner indoor unit with the jet device The induced air volume.
  • a further object of the first aspect of the present invention is to increase the air outlet speed of the jet device and extend its air supply distance.
  • Another further object of the first aspect of the present invention is to improve the uniformity of the air outlet of the jet device in the vertical direction.
  • the object of the second aspect of the present invention is to provide a cabinet type air conditioner indoor unit with the jet device described above.
  • a jet device for a cabinet-type air conditioner indoor unit the cabinet-type air conditioner indoor unit has a heat exchange airflow outlet extending vertically, and the jet device includes:
  • the air outlet duct extends in a vertical direction and defines a vertically extending diversion cavity therein, and one side of the air outlet duct is provided with a strip-shaped air outlet extending in the vertical direction;
  • the jet fan is arranged below the outlet air duct and is in fluid communication with the outlet air duct to controlly drive the airflow outside the jet device to flow into the outlet air duct and into the air outlet duct.
  • the air flow from the air outlet duct is guided by the diversion cavity and then flows out from the air outlet and is mixed with the heat exchange air flow out of the heat exchange air flow outlet.
  • the air outlet is located at the front side of the air outlet duct;
  • the inside of the air outlet air duct is symmetrically provided with two arc-shaped deflectors extending vertically, and the two arc-shaped deflectors protrude and bend toward each other from back to front, so as to make the The diversion cavity is adjacent to the front of the air outlet to form a tapered arc-shaped constriction.
  • the arc-shaped necking portion extends forward to the air outlet, and the size of the foremost end of the arc-shaped necking portion in the transverse direction is consistent with the size of the air outlet in the transverse direction.
  • the cross section of the diversion cavity has a tapered shape in a direction from back to front;
  • the width of the rearmost end of the diversion cavity in the transverse direction is 5-10 times the width of the air outlet in the transverse direction.
  • the cross section of the diversion cavity has a tapered shape in a direction from back to front;
  • the ratio between the width of the rearmost end of the diversion cavity in the transverse direction and the depth of the diversion cavity in the front and rear direction is an arbitrary ratio ranging from 2:11 to 2:9.
  • the ratio between the length of the arc-shaped deflector in the front-rear direction and the depth of the deflector cavity in the front-rear direction is any ratio ranging from 4:11 to 7:11.
  • the cross section of the air outlet duct is trapezoidal, the upper bottom of the trapezoid is located on the front side where the air outlet is located, and the lower bottom of the trapezoid is located on the back side away from the air outlet;
  • the rear ends of the two arc-shaped deflectors are respectively bent and extended forward by the two side plates of the air outlet duct corresponding to the two waists of the trapezoid.
  • a plurality of guide vanes extending in the front-to-rear direction located inside the air outlet are provided in the diversion cavity, and the plurality of guide vanes are arranged at intervals in the vertical direction;
  • the length of the deflector in the front-rear direction is less than or equal to the length of the arc-shaped deflector in the front-rear direction, so that the deflector is in the arc-shaped constriction.
  • a plurality of guide vanes extending in the front-to-rear direction located inside the air outlet are provided in the diversion cavity, and the plurality of guide vanes are arranged at intervals in the vertical direction;
  • the air outlet is located on the front side of the air outlet duct, and the guide vane includes an arc section extending from bottom to top from back to front and extending forward from the end of the arc section to The straight section of the air outlet.
  • the length of the arc-shaped section in the front-to-rear direction is greater than or equal to the length of the straight section in the front-to-rear direction.
  • the lengths of the straight sections of each of the guide vanes in the front and rear directions are equal;
  • the arc-shaped sections of each of the guide vanes have the same length in the front-rear direction; or, the lengths of the arc-shaped sections of the plurality of the guide vanes arranged sequentially from bottom to top in the front-to-rear direction increase sequentially , And the rear ends of the plurality of guide vanes are on an inclined straight line.
  • the bottom of the air outlet air duct is in fluid communication with the top of the jet fan through a volute air duct;
  • the jet fan is a centrifugal fan or an axial fan.
  • a cabinet type air conditioner indoor unit including:
  • the casing has a heat exchange airflow outlet for conveying heat exchange airflow into the room;
  • the jet device is used to controlly promote the air flow from the outside to flow into the inside and send out through the air outlet, and make the air flow sent out through the air outlet and the air flow out through the heat exchange air outlet
  • the heat exchange air flows are mixed.
  • the jet device of the present invention is used in a cabinet type air conditioner indoor unit with a vertically extending heat exchange airflow outlet.
  • the jet device has an air outlet duct extending in the vertical direction and a jet fan arranged below the air outlet duct.
  • the jet fan is used to actively inject the airflow from the outside of the jet device into the outlet air duct, and the airflow entering the outlet duct is guided by the diversion cavity and flows out from the strip air outlet of the outlet air duct and interacts with the heat exchange airflow outlet.
  • the outflowing heat exchange air flows are mixed to avoid overcooling or overheating of the indoor unit of the cabinet-type air conditioner, and improve its comfort experience.
  • the present invention provides a jet fan with active jet flow to greatly increase the jet air volume, and the specific air volume entering the air outlet duct can be controlled by adjusting the jet fan.
  • the control is precise and stable under the influence of other external factors.
  • the inside of the air outlet duct is provided with two arc-shaped baffles, and the two arc-shaped baffles protrude and bend toward each other from back to front, so that the front of the baffle cavity is adjacent to the air outlet.
  • the part forms a tapered arc-shaped constriction.
  • the tapered arc-shaped constriction formed by the deflector of this shape can reduce the air flow resistance as much as possible, increase the air flow velocity to the air outlet, and thus increase the air outlet of the jet device. Speed and extend the air supply distance.
  • the present invention is provided with a plurality of guide vanes arranged at intervals in the vertical direction in the arc-shaped constriction, so as to facilitate the cooperation of the arc-shaped constriction and the guide vanes to make the air outlet in the vertical direction. The wind is more even.
  • the guide vane is designed to have an arc section extending from bottom to top from back to front and a straight section extending forward from the end of the arc section to the strip-shaped air outlet. Keep the preset amount of airflow in the airflow flowing from bottom to top through the arc section, and guide it to the straight section, and guide the preset amount of airflow to the air outlet through the straight section. In this way, the uniformity of the air outlet in the vertical direction is realized.
  • Fig. 1 is a schematic structural diagram of a jet device for a cabinet air conditioner indoor unit according to an embodiment of the present invention
  • Fig. 2 is a schematic front view of an air outlet duct according to an embodiment of the present invention.
  • Figure 3 is a schematic cross-sectional view taken along the section line A-A in Figure 2;
  • FIG. 4 is a schematic enlarged view of part C in FIG. 3;
  • Figure 5 is a schematic cross-sectional view taken along the section line B-B in Figure 2;
  • Fig. 6 is a schematic structural diagram of a cabinet type air conditioner indoor unit according to an embodiment of the present invention.
  • the present invention first provides a jet device, which is applied to a cabinet-type air conditioner indoor unit.
  • the cabinet-type air conditioner indoor unit has a heat exchange airflow outlet extending in a vertical direction, which is used to transport the heat exchange air through the indoor heat exchanger to the room.
  • the heat exchange airflow is used to transport the heat exchange air through the indoor heat exchanger to the room.
  • FIG. 1 is a schematic structural diagram of a jet device for a cabinet air conditioner indoor unit according to an embodiment of the present invention.
  • the jet device 1 of the present invention may include an air outlet duct 10 and a jet fan 20.
  • FIG. 2 is a schematic front view of an air outlet duct according to an embodiment of the present invention
  • FIG. 3 is a schematic cross-sectional view taken along the section line AA in FIG. 2
  • FIG. 4 is a schematic enlarged view of part C in FIG. 3
  • FIG. 5 is a schematic cross-sectional view taken along the section line BB in FIG. 2.
  • the air outlet duct 10 extends in the vertical direction, and defines a vertically extending diversion cavity 11 therein.
  • One side of the air outlet duct 10 is provided with a strip extending in the vertical direction. ⁇ 12 ⁇ Shaped air outlet 12.
  • the jet fan 20 is arranged under the air outlet duct 10 and is in fluid communication with the air outlet duct 10 to controlly drive the airflow outside the jet device 1 to flow into and out of the air duct 10, and the airflow flowing in and out of the air duct 10 passes through
  • the diversion cavity 11 flows out from the strip-shaped air outlet 12 after diversion and mixes with the heat exchange airflow flowing out of the heat exchange airflow outlet of the indoor unit of the cabinet air conditioner.
  • the jet device 1 of the present invention can actively inject the airflow from the outside of the jet device 1 into the outlet air duct 10 through the jet fan 20, and the airflow entering the outlet air duct 10 is guided by the diversion cavity 11 from the outlet wind.
  • the air outlet 12 of the duct 10 flows out and mixes with the heat exchange air flow from the heat exchange air outlet, which prevents the air outlet of the cabinet-type air conditioner indoor unit from being too cold or overheating, and improves its comfort experience.
  • the present invention provides the jet fan 20 with active jet, the jet air volume is greatly increased, and the specific air volume entering the air outlet duct 10 can be controlled by adjusting the speed of the jet fan 20 , The air volume is not affected by other external factors, and the control is accurate and stable.
  • the air outlet 12 of the jet device 1 is designed as a vertically extending strip-shaped air outlet to facilitate exchange with The hot air outlets are matched, so that the heat exchange air flows out of the heat exchange air outlets can be mixed with the unheated air flow from the air outlet 12, so that the air outlets of the indoor unit of the cabinet type air conditioner are all mixed. It is softer, which improves the user experience.
  • the air outlet 12 may be flush with the heat exchange airflow outlet in the vertical direction, so that the two airflows flowing out of the two airflows have a better mixing effect.
  • the jet fan 20 is arranged below the air outlet duct 10, which can reduce the size of the jet device 1 in the lateral direction as much as possible to make the vertical height higher, and make full use of the cabinet type.
  • the advantage in the height direction of the air conditioner indoor unit makes the layout between the jet device 1 and the other structures of the cabinet air conditioner indoor unit more compact, avoiding the application of the jet device 1 to the cabinet air conditioner indoor unit causing the cabinet air conditioner indoor unit to be oversized The problem of large and occupying too much space.
  • the air outlet 12 is a vertically extending strip-shaped air outlet, and the jet fan 20 is arranged below the air outlet duct 10, and the airflow flows into the air outlet duct 20 from bottom to top, and the direction of the air outlet 12 It is vertical, therefore, how to ensure that the air outlet 12 sends out a higher flow rate of air flow and how to realize the uniform air outlet of the air outlet 12 in the vertical direction is the design difficulty and design focus of further embodiments of the present invention.
  • the heat exchange airflow outlet is usually on the front side of the indoor unit of the cabinet air conditioner, so that the air can be sent to the front side. Therefore, in some embodiments, the strip-shaped air outlet 12 is located on the front side of the air outlet duct 10 so as to be mixed with the heat exchange airflow flowing out of the heat exchange airflow outlet.
  • the inside of the air outlet duct 10 is symmetrically provided with two arc-shaped deflectors 13 extending vertically.
  • the front portion of the diversion cavity 11 adjacent to the strip-shaped air outlet 12 forms a tapered arc-shaped constriction 111.
  • the arc-shaped constricted portion 111 tapers from back to front, and is generally in the shape of a funnel from back to front.
  • the tapered arc-shaped constriction formed by the baffle of this shape can reduce the air flow resistance as much as possible and increase the air flow velocity to the air outlet 12, thereby increasing the air outlet speed of the jet device 1 and extending its air supply distance. .
  • the cross section of the air outlet duct 10 is trapezoidal, the upper bottom of the trapezoid is located on the front side where the strip air outlet 12 is located, and the lower bottom of the trapezoid is located on the back side away from the strip air outlet 12.
  • the rear ends of the two arc-shaped baffles 13 are respectively bent and extended forward by the two side plates of the air outlet duct 10 corresponding to the two waists of the trapezoid.
  • the air outlet duct 10 has a front side plate 10a, a rear side plate 10b and two lateral side plates 10c.
  • the air outlet 12 is opened on the front side plate 10a.
  • the cross section of the front side plate 10a is a trapezoidal upper bottom.
  • the cross section of the rear side panel 10b is a trapezoidal bottom bottom, and the cross section of the two lateral side panels 10c is a trapezoidal waist.
  • the two arc-shaped baffles 13 are respectively curved and extended forward from the inner surfaces of the two lateral side plates 10c. In other words, the rear ends of the two arc-shaped baffles 13 do not extend to the rearmost side of the air outlet duct 10.
  • the diversion cavity 11 thus formed includes two parts, an arc-shaped constriction 111 at the front and a ladder-like cavity 112 at the rear.
  • the dividing line between the ladder-like cavity 112 and the arc-shaped constriction 111 is shown as a dotted line in Fig. 5 As shown in the line.
  • the ladder-like cavity 112 not only has a shape that tapers from back to front to facilitate the acceleration of the air flow to the arc-shaped constriction 111, but also, the rear side of the ladder-like cavity 112 also has a larger area for entering the air outlet duct 10
  • the air flow flows from bottom to top through the rear side of the ladder cavity 112, which reduces the flow resistance of the air flow and facilitates the formation of a more uniform air supply at the air outlet 12.
  • the arc-shaped narrowing portion 111 extends forward to the strip-shaped air outlet 12, and the size of the foremost end of the arc-shaped narrowing portion 111 in the transverse direction is the same as the size of the air outlet 12 in the transverse direction.
  • the foremost end of the arc-shaped constricted portion 111 is seamlessly butted with the air outlet 12, so that turbulence near the air outlet 12 can be avoided.
  • the cross section of the diversion cavity 11 has a tapered shape in a direction from back to front.
  • the cross section of the diversion cavity 11 may have a regular tapered shape in the front-to-rear direction, or may have an irregular tapered shape.
  • the diversion cavity 11 shown in FIG. 5 has a ladder-like cavity 112 and an arc-shaped constriction 111 that are arranged from back to front, and both the ladder-like cavity 112 and the arc-shaped constriction 111 are tapered from back to front.
  • the diversion cavity 11 thus formed has an irregularly tapered shape from back to front.
  • the width W 4 of the rearmost end of the diversion cavity 11 in the lateral direction is 5-10 times the width W 6 of the air outlet 12 in the lateral direction. Since the diversion cavity 11 is tapered from back to front, and the arc-shaped constriction 111 is seamlessly butted with the air outlet 12, the width of the rear end of the diversion cavity 11 is the maximum width, and the width of the air outlet 12 is the minimum of the diversion cavity 11. width. That is, the maximum width of the diversion cavity 11 is 5-10 times the minimum width. For example, the maximum width of the diversion cavity 11 may be 5 times, 6 times, 7 times, 8 times, 9 times or 10 times of its minimum width.
  • the rear part of the diversion cavity 11 has an area capable of allowing most of the airflow entering the air outlet duct 10 to flow upward, and on the other hand, the width of the air outlet 12 is also made small enough to make the whole
  • the slit-shaped air outlet 12 extending vertically allows the airflow to obtain a sufficiently large acceleration when flowing from back to front, so as to obtain a larger air outlet speed and air supply distance. More importantly, it can be obtained that the tuyere 12 can discharge the wind uniformly in the vertical direction.
  • the above-mentioned proportional design of the maximum width and the minimum width of the diversion cavity 11 is a result obtained after a balanced consideration of various technical problems, and a better technical effect is achieved in all the above aspects.
  • the width of the rear end of the diversion cavity 11 is too large compared to the width of the air outlet 12, the area at the rear of the diversion cavity 11 will be too large. At this time, most of the air flow will directly flow upward through the rear of the diversion cavity 11, and the air flow to the air outlet 12 is very small, which results in a large amount of air at the top of the air outlet 12, The air output is very small, and the air output from the air outlet 12 is very uneven. If the width of the rear end of the diversion cavity 11 and the width of the air outlet 12 are smaller, the difference in width between the two is small, and the acceleration effect obtained when the air flows from back to front is not obvious, and the air outlet speed of the air outlet 12 is equal to The air supply distance is relatively small.
  • the cross section of the diversion cavity 11 has a tapered shape in the direction from back to front.
  • the ratio between the width W 4 of the rear end of the diversion cavity 11 in the lateral direction and the depth H 4 of the diversion cavity 11 in the front and rear direction is an arbitrary ratio ranging from 2:11 to 2:9.
  • the ratio between the width W 4 and the depth H 4 may be 2:11, 2:10, or 2:9. Therefore, it is possible to maintain a reasonable proportional relationship between the air flow rate allowed to pass through the rear portion of the diversion cavity 11 and the air flow rate capable of obtaining better acceleration backward and forward in the diversion cavity 11, avoiding the width W 4 and the depth H.
  • the ratio between the length H 5 of the arc-shaped deflector 13 in the front- rear direction and the depth H 4 of the deflector cavity 11 in the front-rear direction is in the range of 4:11 to 7:11. Any ratio. It can be understood that the length H 5 of the arc-shaped deflector 13 in the front-rear direction is the vertical distance between the front and rear ends of the arc-shaped deflector 13 in the front-rear direction. For example, the ratio between the length H 5 and the depth H 4 may be 4:11, 5:11, 6:11, or 7:11.
  • the rear portion of the diversion cavity 11 has an area capable of causing most of the airflow entering the air outlet duct 10 to flow upward
  • the arc-shaped constricted portion 111 has a reasonable length. This allows a better acceleration of the part of the airflow flowing from bottom to top to obtain a larger wind speed. Conversely, if the ratio between the length H 5 and the depth H 4 is too small, the arc-shaped constricted portion 111 has no obvious acceleration effect on the air flow, and the air outlet speed of the air outlet 12 is small.
  • the guide cavity 11 is provided with a plurality of guide vanes 14 located inside the air outlet 12 extending in the front-to-rear direction, and the plurality of guide vanes 14 are arranged at intervals in the vertical direction for guiding the guide.
  • the air flow in the cavity 11 flows toward the air outlet 12.
  • the length W 1 of the baffle 14 in the front-rear direction is less than or equal to the length H 5 of the arc-shaped baffle 13 in the front-rear direction, so that the baffle 14 is in the arc-shaped constriction 111. That is to say, in the present invention, a plurality of guide vanes 14 arranged at intervals in the vertical direction are provided in the arc-shaped constricted portion 111, so as to facilitate the cooperation of the arc-shaped constricted portion 111 and the guide vane 14 to make the air outlet 12 in The wind in the vertical direction is more even.
  • the guide vane 14 is located in the arc-shaped constriction 111, which can prevent the airflow flowing in the rear space of the diversion cavity 11 from leading back and forth, so as to facilitate the airflow entering the air outlet duct 10 from bottom to top Ground flow is beneficial to achieve uniform air discharge in the vertical direction at the air outlet 12.
  • the guide cavity 11 is provided with a plurality of guide vanes 14 located inside the air outlet 12 extending in the front-to-rear direction, and the plurality of guide vanes 14 are arranged at intervals in the vertical direction for guiding the guide.
  • the air flow in the cavity 11 flows toward the air outlet 12.
  • the strip-shaped air outlet 12 is located on the front side of the air outlet duct 10, and the deflector 14 may include an arc-shaped section 141 bent from back to front from bottom to top, and an arc section 141 extending from the end of the arc-shaped section 141 toward the front.
  • the straight section 142 of the strip-shaped air outlet 12 extends forward.
  • the preset amount of airflow in the airflow flowing from bottom to top can be kept inside by the arc-shaped section 141 of special shape, and the flow of this part of the airflow after encountering the arc-shaped section 141 can be reduced as much as possible.
  • it is guided to the flat section 142, and the preset amount of airflow is guided to the air outlet 12 through the flat section 142, so that the cooperation of the plurality of guide vanes 14 further improves the air outlet 12 The uniformity of the wind in the vertical direction.
  • a flat section 142 is specially designed on the front of the guide vane 14 adjacent to the air outlet 12, and the flat section 142 can guide the air flow to be sent horizontally through the air outlet 12, thereby making the jet device 1
  • the air flow sent out is consistent with the direction of the air flow sent from the heat exchange air outlet of the cabinet air conditioner indoor unit, so that the overall air supply speed of the cabinet air conditioner indoor unit is higher while ensuring a better mixing effect of the two air streams ,
  • the overall air supply distance is relatively long.
  • the length W 3 of the arc-shaped section 141 in the front-rear direction is greater than or equal to the length W 2 of the straight section 142 in the front-rear direction.
  • the arc-shaped section 141 can be made to have a relatively long length in the front-to-rear direction, so as to increase the guide path length of the arc-shaped section 141 to the airflow and reduce the curvature of the arc-shaped section 141. Therefore, the flow resistance after the airflow encounters the arc-shaped section 141 is reduced as much as possible.
  • the length of the straight section 142 in the front-to-rear direction is made shorter, so as to reduce the length of the entire baffle 14 in the front-to-rear direction, thereby The size of the jet device 1 in the front-to-rear direction is reduced, making it more suitable for a cabinet-type air conditioner indoor unit with compact structure and high volume requirements.
  • each guide vane 14 has the same length in the front-rear direction
  • the arc-shaped section 141 of each guide vane 14 has the same length in the front-rear direction.
  • the size of each guide vane 14 is the same to facilitate mold opening and save cost.
  • the applicant has verified through in-depth analysis and a large number of simulations, experiments, etc.: as long as the size of the deflector cavity 11, the arc deflector 13 and/or the deflector 14 is designed according to the scheme in the above embodiment, and the jet fan 20 The air is continuously blown toward the air outlet duct 10, even if the size of each guide vane 14 is the same, the air outlet 12 can achieve uniform air outlet in the vertical direction.
  • each guide vane 14 has the same length in the front-rear direction, and the arc-shaped sections 141 of the plurality of guide vanes 14 arranged in sequence from bottom to top are in the front-rear direction.
  • the length increases in turn.
  • the arc-shaped section 141 of the flow vane 14 is of equal length, which may cause the problem of less air flow guided by the upper guide vane 14 so as to ensure uniform air discharge from the air outlet 12 in the vertical direction.
  • the rear ends of the plurality of guide vanes 14 are on an inclined straight line.
  • the arc sections 141 of the plurality of guide vanes 14 arranged sequentially from bottom to top are sequentially extended at equal intervals, which further ensures that the air outlet 12 discharges uniformly in the vertical direction.
  • the bottom of the air outlet duct 10 and the top of the jet fan 20 are in fluid communication through the volute duct 30.
  • the air inlet of the air outlet duct 10 is opened at its bottom, the air outlet of the jet fan 20 is located at the top, and the air inlet of the air outlet duct 10 and the air outlet of the jet fan 20 are sealedly connected with a volute wind.
  • the duct 30 is used to guide the air flow sent by the jet fan 20 to the air outlet duct 10.
  • the heat exchange airflow outlet of the cabinet air conditioner indoor unit has a certain height.
  • a volute air duct 30 is provided between the bottom of the air outlet duct 10 and the top of the jet fan 20, so that the jet device 1 is better connected to the cabinet air-conditioning room.
  • the other structure of the machine matches.
  • the height of the volute air duct 30 in the vertical direction is set so that the air outlet 12 of the air outlet duct 10 is consistent with the height of the heat exchange airflow outlet of the cabinet-type air conditioner indoor unit, so as to facilitate the delivery of the air from the air outlet 12
  • the airflow is better mixed with the heat exchange airflow flowing out from the heat exchange airflow outlet.
  • the jet fan 20 may be a centrifugal fan or an axial fan.
  • the centrifugal fan and the axial fan are small in size and have a long range, which is very suitable for sucking air from the side and blowing air upwards.
  • FIG. 6 is a schematic structural diagram of a cabinet type air conditioner indoor unit according to an embodiment of the present invention.
  • the cabinet type air conditioner indoor unit 4 of the present invention includes a cabinet 5
  • the casing 5 has a heat exchange airflow outlet 51 for conveying heat exchange airflow into the room.
  • the number of heat exchange airflow outlets 51 may be one, or two or more.
  • the casing 5 may be provided with a heat exchange device for exchanging heat with the airflow to generate a heat exchange airflow, and a blower for driving the airflow into the air inlet 52 of the casing 5 and sending it out through the heat exchange airflow outlet 51.
  • the air supply fan can be a cross flow fan, and the number of cross flow fans can be one or two.
  • the cabinet-type air conditioner indoor unit 4 also includes the jet device 1 described in any of the above embodiments, and the jet device 1 is used to controlly encourage the airflow from the outside to flow into it and send it out through the air outlet 12, and make it pass through
  • the unheated air flow sent from the air outlet 12 is mixed with the heat exchange air flow flowing out through the heat exchange air outlet 51 to avoid overcooling or overheating of the air from the cabinet-type air conditioner indoor unit 4, which improves the softness of the air and the user’s comfort. Comfortable experience.
  • the air flow rate of the cabinet-type air-conditioning indoor unit 4 with the jet device 1 without heat exchange is relatively large and the air supply distance is relatively long, which improves the overall air supply volume and air supply range of the cabinet-type air-conditioning indoor unit 4.
  • the unheated air flow injected by the jet device 1 has a relatively large adjustable range, which meets a variety of different use requirements of users.
  • the jet device 1 can be connected to the casing 5 and match the outer structure of the casing 5.
  • the air outlet 12 of the jet device 1 is arranged adjacent to the heat exchange airflow outlet 51 on the casing 5.

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Abstract

A jet device for a cabinet air conditioner indoor unit, and a cabinet air conditioner indoor unit, the cabinet air conditioner indoor unit having a heat exchange airflow outlet extending vertically. The jet device comprises: an air outlet duct, extending in a vertical direction and having a flow guide cavity extending vertically defined therein, a strip-shaped air outlet that extends vertically being provided on one of the side faces of the air outlet duct; and a jet fan, provided below the air outlet duct and in fluid communication with the air outlet duct, so as to controllably drive airflow outside the jet device to flow into the air outlet duct; the airflow flowing into the air outlet duct is guided by the flow guide cavity and then flows out from the air outlet and is mixed with heat exchange airflow flowing out of a heat exchange airflow outlet, thereby preventing the outgoing air of the indoor unit of the cabinet air conditioner from being too cold or too hot, improving the comfort experience. In the present invention, by arranging a jet fan to actively perform jetting, the jet air volume is greatly improved, the regulation range of the jet air volume is wide, and the air volume is not influenced by other external factors, so that the control is accurate and stable.

Description

用于柜式空调室内机的射流装置及柜式空调室内机Jet device for indoor unit of cabinet type air conditioner and indoor unit of cabinet type air conditioner 技术领域Technical field
本发明涉及空调技术领域，特别是涉及一种用于柜式空调室内机的射流装置及柜式空调室内机。The present invention relates to the technical field of air conditioners, in particular to a jet device used for a cabinet-type air conditioner indoor unit and a cabinet-type air conditioner indoor unit.
背景技术Background technique
目前，市面上大多柜式空调室内机的出风口都是沿竖直方向延伸的条形出风口，以获得竖直方向上较大的送风范围。本发明的申请人曾设计了一款双贯流空调室内机，其壳体内设置两组贯流风扇，壳体的两侧部分别设置有与两组贯流风扇对应的进风口，壳体前部形成出风口，以提高送风效率。并且，为了实现送风的舒适性，在壳体的后部、两个进风口之间形成有引风口，在壳体上和/或壳体内部形成有前后贯通的贯通风道，贯通风道的一端与出风口相连通，另一端与引风口相连通。空调运行时，出风口的出风能够在贯通风道内形成负压，在该负压作用下可通过引风口向贯通风道内引入室内非热交换风，从而使非热交换风在出风口处与热交换风混合后送往室内，达到了舒适送风的目的。At present, most of the air outlets of the cabinet-type air conditioner indoor units on the market are strip-shaped air outlets extending in the vertical direction to obtain a larger air supply range in the vertical direction. The applicant of the present invention has designed a dual-flow air-conditioning indoor unit, in which two sets of cross-flow fans are arranged in the shell, and the two sets of cross-flow fans are respectively provided on both sides of the shell with air inlets corresponding to the two sets of cross-flow fans. The part forms an air outlet to improve the air supply efficiency. In addition, in order to achieve the comfort of air supply, an air inlet is formed at the rear of the housing and between the two air inlets, and a through ventilation duct is formed on the housing and/or inside the housing. One end is connected to the air outlet, and the other end is connected to the air inlet. When the air conditioner is running, the air from the air outlet can form a negative pressure in the through ventilation duct. Under the action of this negative pressure, the indoor non-heat exchange air can be introduced into the through ventilation duct through the air inlet, so that the non-heat exchange air is connected to the air outlet. The heat exchange air is mixed and sent to the room to achieve the purpose of comfortable air supply.
然而，非热交换风是在出风产生的负压作用下被动引入贯通风道内的，引风量比较小，且引风量的多少容易受贯流风扇的转速、引风口大小、贯通风道形状等多种因素的影响，非常不稳定、不易控制或调节。However, non-heat-exchanged air is passively introduced into the through ventilation duct under the negative pressure generated by the outlet air. The induced air volume is relatively small, and the amount of induced air volume is easily affected by the speed of the cross flow fan, the size of the air inlet, the shape of the through ventilation duct, etc. The influence of many factors is very unstable and difficult to control or adjust.
发明内容Summary of the invention
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技术缺陷，提供一种用于柜式空调室内机的能够主动射流的射流装置，以提高具有该射流装置的柜式空调室内机的引风量。An objective of the first aspect of the present invention is to overcome at least one technical defect of the prior art and provide a jet device capable of active jet for a cabinet air conditioner indoor unit, so as to improve the cabinet air conditioner indoor unit with the jet device The induced air volume.
本发明第一方面的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。A further object of the first aspect of the present invention is to increase the air outlet speed of the jet device and extend its air supply distance.
本发明第一方面的另一个进一步的目的是提高射流装置在竖直方向上的出风均匀性。Another further object of the first aspect of the present invention is to improve the uniformity of the air outlet of the jet device in the vertical direction.
本发明第二方面的目的是提供一种具有上述射流装置的柜式空调室内机。The object of the second aspect of the present invention is to provide a cabinet type air conditioner indoor unit with the jet device described above.
根据本发明的第一方面，提供了一种用于柜式空调室内机的射流装置， 所述柜式空调室内机具有沿竖向延伸的换热气流出口，所述射流装置包括：According to a first aspect of the present invention, there is provided a jet device for a cabinet-type air conditioner indoor unit, the cabinet-type air conditioner indoor unit has a heat exchange airflow outlet extending vertically, and the jet device includes:
出风风道，沿竖直方向延伸，且其内限定有竖向延伸的导流腔，所述出风风道的其中一个侧面上开设有沿竖向延伸的条形的出风口；以及The air outlet duct extends in a vertical direction and defines a vertically extending diversion cavity therein, and one side of the air outlet duct is provided with a strip-shaped air outlet extending in the vertical direction; and
射流风机，设置于所述出风风道的下方，并与所述出风风道流体连通，以受控地驱动所述射流装置外部的气流流进所述出风风道，流进所述出风风道的气流经所述导流腔导流后从所述出风口流出并与从所述换热气流出口流出的换热气流相混合。The jet fan is arranged below the outlet air duct and is in fluid communication with the outlet air duct to controlly drive the airflow outside the jet device to flow into the outlet air duct and into the air outlet duct. The air flow from the air outlet duct is guided by the diversion cavity and then flows out from the air outlet and is mixed with the heat exchange air flow out of the heat exchange air flow outlet.
可选地，所述出风口位于所述出风风道的前侧；Optionally, the air outlet is located at the front side of the air outlet duct;
所述出风风道的内部对称地设有两个竖向延伸的弧形导流板，两个所述弧形导流板由后向前地朝相互靠近的方向凸出弯曲，以使得所述导流腔邻近所述出风口的前部形成渐缩的弧形收口部。The inside of the air outlet air duct is symmetrically provided with two arc-shaped deflectors extending vertically, and the two arc-shaped deflectors protrude and bend toward each other from back to front, so as to make the The diversion cavity is adjacent to the front of the air outlet to form a tapered arc-shaped constriction.
可选地，所述弧形收口部向前延伸至所述出风口，且所述弧形收口部的最前端在横向上的尺寸与所述出风口在横向上的尺寸一致。Optionally, the arc-shaped necking portion extends forward to the air outlet, and the size of the foremost end of the arc-shaped necking portion in the transverse direction is consistent with the size of the air outlet in the transverse direction.
可选地，所述导流腔的横截面在由后向前的方向上呈渐缩的形状；且Optionally, the cross section of the diversion cavity has a tapered shape in a direction from back to front; and
所述导流腔的最后端在横向上的宽度为所述出风口在横向上的宽度的5～10倍。The width of the rearmost end of the diversion cavity in the transverse direction is 5-10 times the width of the air outlet in the transverse direction.
可选地，所述导流腔的横截面在由后向前的方向上呈渐缩的形状；且Optionally, the cross section of the diversion cavity has a tapered shape in a direction from back to front; and
所述导流腔的最后端在横向上的宽度与所述导流腔在前后方向上的深度之间的比值为范围在2:11～2:9之间的任意比值。The ratio between the width of the rearmost end of the diversion cavity in the transverse direction and the depth of the diversion cavity in the front and rear direction is an arbitrary ratio ranging from 2:11 to 2:9.
可选地，所述弧形导流板在前后方向上的长度与所述导流腔在前后方向上的深度之间的比值为范围在4:11～7:11之间的任意比值。Optionally, the ratio between the length of the arc-shaped deflector in the front-rear direction and the depth of the deflector cavity in the front-rear direction is any ratio ranging from 4:11 to 7:11.
可选地，所述出风风道的横截面呈梯形，所述梯形的上底位于所述出风口所在的前侧，所述梯形的下底位于背离所述出风口的后侧；Optionally, the cross section of the air outlet duct is trapezoidal, the upper bottom of the trapezoid is located on the front side where the air outlet is located, and the lower bottom of the trapezoid is located on the back side away from the air outlet;
两个所述弧形导流板的后端分别由所述出风风道对应于所述梯形两个腰部的两个侧板向前弯曲延伸。The rear ends of the two arc-shaped deflectors are respectively bent and extended forward by the two side plates of the air outlet duct corresponding to the two waists of the trapezoid.
可选地，所述导流腔内设有位于所述出风口内侧的多个沿前后方向延伸的导流片，所述多个导流片在竖直方向上间隔排列；且Optionally, a plurality of guide vanes extending in the front-to-rear direction located inside the air outlet are provided in the diversion cavity, and the plurality of guide vanes are arranged at intervals in the vertical direction; and
所述导流片在前后方向上的长度小于等于所述弧形导流板在前后方向上的长度，以使得所述导流片处于所述弧形收口部内。The length of the deflector in the front-rear direction is less than or equal to the length of the arc-shaped deflector in the front-rear direction, so that the deflector is in the arc-shaped constriction.
可选地，所述导流腔内设有位于所述出风口内侧的多个沿前后方向延伸的导流片，所述多个导流片在竖直方向上间隔排列；且Optionally, a plurality of guide vanes extending in the front-to-rear direction located inside the air outlet are provided in the diversion cavity, and the plurality of guide vanes are arranged at intervals in the vertical direction; and
所述出风口位于所述出风风道的前侧，所述导流片包括从下至上地由后向前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出风口的平直区段。The air outlet is located on the front side of the air outlet duct, and the guide vane includes an arc section extending from bottom to top from back to front and extending forward from the end of the arc section to The straight section of the air outlet.
可选地，所述弧形区段在前后方向上的长度大于等于所述平直区段在前后方向上的长度。Optionally, the length of the arc-shaped section in the front-to-rear direction is greater than or equal to the length of the straight section in the front-to-rear direction.
可选地，每个所述导流片的平直区段在前后方向上的长度均相等；且Optionally, the lengths of the straight sections of each of the guide vanes in the front and rear directions are equal; and
每个所述导流片的弧形区段在前后方向上的长度均相等；或者，由下至上依次排列的多个所述导流片的弧形区段在前后方向上的长度依次增大，且所述多个导流片的后端端部处于一条倾斜的直线上。The arc-shaped sections of each of the guide vanes have the same length in the front-rear direction; or, the lengths of the arc-shaped sections of the plurality of the guide vanes arranged sequentially from bottom to top in the front-to-rear direction increase sequentially , And the rear ends of the plurality of guide vanes are on an inclined straight line.
可选地，所述出风风道的底部与所述射流风机的顶部之间通过蜗壳风道流体连通；Optionally, the bottom of the air outlet air duct is in fluid communication with the top of the jet fan through a volute air duct;
所述射流风机为离心风机或轴流风机。The jet fan is a centrifugal fan or an axial fan.
根据本发明的第二方面，还提供了一种柜式空调室内机，包括：According to the second aspect of the present invention, there is also provided a cabinet type air conditioner indoor unit, including:
机壳，具有用于向室内输送换热气流的换热气流出口；以及The casing has a heat exchange airflow outlet for conveying heat exchange airflow into the room; and
上述任一项所述的射流装置，用于受控地促使其外部的气流流入其内部并经其出风口送出、且使得经所述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。The jet device according to any one of the above is used to controlly promote the air flow from the outside to flow into the inside and send out through the air outlet, and make the air flow sent out through the air outlet and the air flow out through the heat exchange air outlet The heat exchange air flows are mixed.
本发明的射流装置用于具有竖向延伸的换热气流出口的柜式空调室内机，该射流装置具有沿竖直方向延伸的出风风道和设置在出风风道下方的射流风机，可通过射流风机主动地将射流装置外部的气流射入出风风道内，进入出风风道内的气流经导流腔导流后从出风风道的条形出风口流出并与从换热气流出口流出的换热气流相混合，避免了柜式空调室内机出风过冷或过热，提高了其舒适性体验。相比于现有技术中利用负压被动引流的方式，本发明通过设置射流风机主动射流，射流风量大大提高，且可通过调节射流风机控制进入出风风道内的具体风量，该风量大小不受其他外界因素的影响，控制精确、稳定。The jet device of the present invention is used in a cabinet type air conditioner indoor unit with a vertically extending heat exchange airflow outlet. The jet device has an air outlet duct extending in the vertical direction and a jet fan arranged below the air outlet duct. The jet fan is used to actively inject the airflow from the outside of the jet device into the outlet air duct, and the airflow entering the outlet duct is guided by the diversion cavity and flows out from the strip air outlet of the outlet air duct and interacts with the heat exchange airflow outlet. The outflowing heat exchange air flows are mixed to avoid overcooling or overheating of the indoor unit of the cabinet-type air conditioner, and improve its comfort experience. Compared with the passive drainage method using negative pressure in the prior art, the present invention provides a jet fan with active jet flow to greatly increase the jet air volume, and the specific air volume entering the air outlet duct can be controlled by adjusting the jet fan. The control is precise and stable under the influence of other external factors.
进一步地，出风风道的内部设有两个弧形导流板，两个弧形导流板由后向前地朝相互靠近的方向凸出弯曲，从而在导流腔邻近出风口的前部形成渐缩的弧形收口部，这种形状的导流板形成的渐缩弧形收口部可尽可能地降低气流流动阻力，提高流向出风口的气流流速，从而提高了射流装置的出风速度、延长了其送风距离。Further, the inside of the air outlet duct is provided with two arc-shaped baffles, and the two arc-shaped baffles protrude and bend toward each other from back to front, so that the front of the baffle cavity is adjacent to the air outlet. The part forms a tapered arc-shaped constriction. The tapered arc-shaped constriction formed by the deflector of this shape can reduce the air flow resistance as much as possible, increase the air flow velocity to the air outlet, and thus increase the air outlet of the jet device. Speed and extend the air supply distance.
进一步地，由于射流风机设置于出风风道的下方，气流从下而上地流入出风风道，因此如何在出风口处实现竖直方向上的均匀出风是本发明的设计难点和设计重点。为此，本发明在弧形收口部内设有多个沿竖向间隔排列的多个导流片，以便于通过弧形收口部与导流片的配合使得出风口在竖直方向上的出风更加均匀。Furthermore, since the jet fan is arranged below the air outlet duct, the airflow flows into the air outlet duct from bottom to top, so how to achieve uniform air outlet in the vertical direction at the air outlet is the design difficulty and design of the present invention. Focus. To this end, the present invention is provided with a plurality of guide vanes arranged at intervals in the vertical direction in the arc-shaped constriction, so as to facilitate the cooperation of the arc-shaped constriction and the guide vanes to make the air outlet in the vertical direction. The wind is more even.
进一步地，本发明将导流片设计成具有从下至上地由后向前弯曲延伸的弧形区段和由弧形区段的末端向前延伸至条形出风口的平直区段，可通过弧形区段将由下至上流动的气流中的预设量气流保留在其内侧，并将其导流至平直区段，通过平直区段将该预设量的气流引导至出风口，从而实现出风口在竖直方向上的出风均匀性。Further, in the present invention, the guide vane is designed to have an arc section extending from bottom to top from back to front and a straight section extending forward from the end of the arc section to the strip-shaped air outlet. Keep the preset amount of airflow in the airflow flowing from bottom to top through the arc section, and guide it to the straight section, and guide the preset amount of airflow to the air outlet through the straight section. In this way, the uniformity of the air outlet in the vertical direction is realized.
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。Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will better understand the above and other objectives, advantages and features of the present invention.
附图说明Description of the drawings
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：Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary but not restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the attached picture:
图1是根据本发明一个实施例的用于柜式空调室内机的射流装置的示意性结构图；Fig. 1 is a schematic structural diagram of a jet device for a cabinet air conditioner indoor unit according to an embodiment of the present invention;
图2是根据本发明一个实施例的出风风道的示意性正视图；Fig. 2 is a schematic front view of an air outlet duct according to an embodiment of the present invention;
图3是沿图2中的剖切线A-A截取的示意性剖视图；Figure 3 is a schematic cross-sectional view taken along the section line A-A in Figure 2;
图4是图3中部分C的示意性放大图；FIG. 4 is a schematic enlarged view of part C in FIG. 3;
图5是沿图2中的剖切线B-B截取的示意性剖视图；Figure 5 is a schematic cross-sectional view taken along the section line B-B in Figure 2;
图6是根据本发明一个实施例的柜式空调室内机的示意性结构图。Fig. 6 is a schematic structural diagram of a cabinet type air conditioner indoor unit according to an embodiment of the present invention.
具体实施方式Detailed ways
本发明首先提供一种射流装置，该射流装置应用于柜式空调室内机，该柜式空调室内机具有沿竖向延伸的换热气流出口，用于向室内输送经室内换热器换热后的换热气流。The present invention first provides a jet device, which is applied to a cabinet-type air conditioner indoor unit. The cabinet-type air conditioner indoor unit has a heat exchange airflow outlet extending in a vertical direction, which is used to transport the heat exchange air through the indoor heat exchanger to the room. The heat exchange airflow.
图1是根据本发明一个实施例的用于柜式空调室内机的射流装置的示意性结构图，本发明的射流装置1可包括出风风道10和射流风机20。FIG. 1 is a schematic structural diagram of a jet device for a cabinet air conditioner indoor unit according to an embodiment of the present invention. The jet device 1 of the present invention may include an air outlet duct 10 and a jet fan 20.
图2是根据本发明一个实施例的出风风道的示意性正视图，图3是沿图 2中的剖切线A-A截取的示意性剖视图，图4是图3中部分C的示意性放大图，图5是沿图2中的剖切线B-B截取的示意性剖视图。2 is a schematic front view of an air outlet duct according to an embodiment of the present invention, FIG. 3 is a schematic cross-sectional view taken along the section line AA in FIG. 2, and FIG. 4 is a schematic enlarged view of part C in FIG. 3 , FIG. 5 is a schematic cross-sectional view taken along the section line BB in FIG. 2.
参见图2至图5，出风风道10沿竖直方向延伸，且其内限定有竖向延伸的导流腔11，出风风道10的其中一个侧面上开设有沿竖向延伸的条形的出风口12。射流风机20设置于出风风道10的下方，并与出风风道10流体连通，以受控地驱动射流装置1外部的气流流进出风风道10，流进出风风道10的气流经导流腔11导流后从条形出风口12流出并与从柜式空调室内机的换热气流出口流出的换热气流相混合。Referring to Figures 2 to 5, the air outlet duct 10 extends in the vertical direction, and defines a vertically extending diversion cavity 11 therein. One side of the air outlet duct 10 is provided with a strip extending in the vertical direction.形的风口12。 Shaped air outlet 12. The jet fan 20 is arranged under the air outlet duct 10 and is in fluid communication with the air outlet duct 10 to controlly drive the airflow outside the jet device 1 to flow into and out of the air duct 10, and the airflow flowing in and out of the air duct 10 passes through The diversion cavity 11 flows out from the strip-shaped air outlet 12 after diversion and mixes with the heat exchange airflow flowing out of the heat exchange airflow outlet of the indoor unit of the cabinet air conditioner.
本发明的射流装置1可通过射流风机20主动地将射流装置1外部的气流射入出风风道10内，进入出风风道10内的气流经导流腔11导流后从出风风道10的出风口12流出并与从换热气流出口流出的换热气流相混合，避免了柜式空调室内机出风过冷或过热，提高了其舒适性体验。相比于现有技术中利用负压被动引流的方式，本发明通过设置射流风机20主动射流，射流风量大大提高，且可通过调节射流风机20的转速控制进入出风风道10内的具体风量，该风量大小不受其他外界因素的影响，控制精确、稳定。The jet device 1 of the present invention can actively inject the airflow from the outside of the jet device 1 into the outlet air duct 10 through the jet fan 20, and the airflow entering the outlet air duct 10 is guided by the diversion cavity 11 from the outlet wind. The air outlet 12 of the duct 10 flows out and mixes with the heat exchange air flow from the heat exchange air outlet, which prevents the air outlet of the cabinet-type air conditioner indoor unit from being too cold or overheating, and improves its comfort experience. Compared with the passive drainage method using negative pressure in the prior art, the present invention provides the jet fan 20 with active jet, the jet air volume is greatly increased, and the specific air volume entering the air outlet duct 10 can be controlled by adjusting the speed of the jet fan 20 , The air volume is not affected by other external factors, and the control is accurate and stable.
由于本发明的射流装置1应用于具有竖向延伸的换热气流出口的柜式空调室内机，因此，射流装置1的出风口12设计成竖向延伸的条形的出风口，以便于与换热气流出口相匹配，使得从换热气流出口各处流出的换热气流都能够与从出风口12流出的未经换热的气流进行混合，从而使得柜式空调室内机各处的出风都比较柔和，提高了用户的使用体验。具体地，出风口12在竖直方向上可与换热气流出口相平齐，以使从二者流出的两股气流混合的效果更佳。Since the jet device 1 of the present invention is applied to a cabinet air-conditioning indoor unit with a vertically extending heat exchange airflow outlet, the air outlet 12 of the jet device 1 is designed as a vertically extending strip-shaped air outlet to facilitate exchange with The hot air outlets are matched, so that the heat exchange air flows out of the heat exchange air outlets can be mixed with the unheated air flow from the air outlet 12, so that the air outlets of the indoor unit of the cabinet type air conditioner are all mixed. It is softer, which improves the user experience. Specifically, the air outlet 12 may be flush with the heat exchange airflow outlet in the vertical direction, so that the two airflows flowing out of the two airflows have a better mixing effect.
同时，本发明的射流装置1将射流风机20设置于出风风道10的下方，可尽可能地减小射流装置1在横向上的尺寸，使其竖直高度较高，充分利用了柜式空调室内机高度方向上的优势，使得射流装置1与柜式空调室内机的其他结构之间的布局更加紧凑，避免将射流装置1应用于柜式空调室内机后造成柜式空调室内机体积过大、占用空间过多的问题。At the same time, in the jet device 1 of the present invention, the jet fan 20 is arranged below the air outlet duct 10, which can reduce the size of the jet device 1 in the lateral direction as much as possible to make the vertical height higher, and make full use of the cabinet type. The advantage in the height direction of the air conditioner indoor unit makes the layout between the jet device 1 and the other structures of the cabinet air conditioner indoor unit more compact, avoiding the application of the jet device 1 to the cabinet air conditioner indoor unit causing the cabinet air conditioner indoor unit to be oversized The problem of large and occupying too much space.
然而，出风口12为竖向延伸的条形出风口，将射流风机20设置于出风风道10的下方，气流从下而上地流入出风风道20，与出风口12的出风方向垂直，因此如何确保出风口12送出较高流速的气流、以及如何实现出风口12在竖直方向上的均匀出风是本发明进一步实施例的设计难点和设计重点。However, the air outlet 12 is a vertically extending strip-shaped air outlet, and the jet fan 20 is arranged below the air outlet duct 10, and the airflow flows into the air outlet duct 20 from bottom to top, and the direction of the air outlet 12 It is vertical, therefore, how to ensure that the air outlet 12 sends out a higher flow rate of air flow and how to realize the uniform air outlet of the air outlet 12 in the vertical direction is the design difficulty and design focus of further embodiments of the present invention.
换热气流出口通常处于柜式空调室内机的前侧，以便于朝向前侧送风。因此，在一些实施例中，条形出风口12位于出风风道10的前侧，以便于与从换热气流出口流出的换热气流相混合。The heat exchange airflow outlet is usually on the front side of the indoor unit of the cabinet air conditioner, so that the air can be sent to the front side. Therefore, in some embodiments, the strip-shaped air outlet 12 is located on the front side of the air outlet duct 10 so as to be mixed with the heat exchange airflow flowing out of the heat exchange airflow outlet.
进一步地，出风风道10的内部对称地设有两个竖向延伸的弧形导流板13，两个弧形导流板13由后向前地朝相互靠近的方向凸出弯曲，以使得导流腔11邻近条形出风口12的前部形成渐缩的弧形收口部111。也就是说，弧形收口部111由后向前地渐缩，且大致呈由后向前的漏斗状。这种形状的导流板形成的渐缩弧形收口部可尽可能地降低气流流动阻力、提高流向出风口12的气流流速，从而提高了射流装置1的出风速度、延长了其送风距离。Furthermore, the inside of the air outlet duct 10 is symmetrically provided with two arc-shaped deflectors 13 extending vertically. As a result, the front portion of the diversion cavity 11 adjacent to the strip-shaped air outlet 12 forms a tapered arc-shaped constriction 111. In other words, the arc-shaped constricted portion 111 tapers from back to front, and is generally in the shape of a funnel from back to front. The tapered arc-shaped constriction formed by the baffle of this shape can reduce the air flow resistance as much as possible and increase the air flow velocity to the air outlet 12, thereby increasing the air outlet speed of the jet device 1 and extending its air supply distance. .
在一些实施例中，出风风道10的横截面呈梯形，该梯形的上底位于条形出风口12所在的前侧，该梯形的下底位于背离条形出风口12的后侧。两个弧形导流板13的后端分别由出风风道10对应于梯形两个腰部的两个侧板向前弯曲延伸。具体地，出风风道10具有前侧板10a、后侧板10b和两个横向侧板10c，出风口12开设在前侧板10a上，前侧板10a的横截面为梯形的上底，后侧板10b的横截面为梯形的下底，两个横向侧板10c的横截面为梯形的两个腰。两个弧形导流板13分别由两个横向侧板10c的内表面向前弯曲延伸。也就是说，两个弧形导流板13的后端并没有延伸至出风风道10的最后侧。由此形成的导流腔11包括处于前部的弧形收口部111和处于后部的梯形容腔112两部分，梯形容腔112与弧形收口部111的分界线如图5中的点划线所示。In some embodiments, the cross section of the air outlet duct 10 is trapezoidal, the upper bottom of the trapezoid is located on the front side where the strip air outlet 12 is located, and the lower bottom of the trapezoid is located on the back side away from the strip air outlet 12. The rear ends of the two arc-shaped baffles 13 are respectively bent and extended forward by the two side plates of the air outlet duct 10 corresponding to the two waists of the trapezoid. Specifically, the air outlet duct 10 has a front side plate 10a, a rear side plate 10b and two lateral side plates 10c. The air outlet 12 is opened on the front side plate 10a. The cross section of the front side plate 10a is a trapezoidal upper bottom. The cross section of the rear side panel 10b is a trapezoidal bottom bottom, and the cross section of the two lateral side panels 10c is a trapezoidal waist. The two arc-shaped baffles 13 are respectively curved and extended forward from the inner surfaces of the two lateral side plates 10c. In other words, the rear ends of the two arc-shaped baffles 13 do not extend to the rearmost side of the air outlet duct 10. The diversion cavity 11 thus formed includes two parts, an arc-shaped constriction 111 at the front and a ladder-like cavity 112 at the rear. The dividing line between the ladder-like cavity 112 and the arc-shaped constriction 111 is shown as a dotted line in Fig. 5 As shown in the line.
梯形容腔112不但具有由后向前地渐缩的形状以便于气流加速流向弧形收口部111，而且，梯形容腔112的后侧还具有较大的面积以供进入出风风道10内的气流经梯形容腔112的后侧从下往上流动，减小了气流的流动阻力，便于在出风口12处形成较为均匀的送风。The ladder-like cavity 112 not only has a shape that tapers from back to front to facilitate the acceleration of the air flow to the arc-shaped constriction 111, but also, the rear side of the ladder-like cavity 112 also has a larger area for entering the air outlet duct 10 The air flow flows from bottom to top through the rear side of the ladder cavity 112, which reduces the flow resistance of the air flow and facilitates the formation of a more uniform air supply at the air outlet 12.
在一些实施例中，弧形收口部111向前延伸至条形出风口12，且弧形收口部111的最前端在横向上的尺寸与出风口12在横向上的尺寸一致。也就是说，弧形收口部111的最前端与出风口12无缝对接，从而可避免出风口12附近产生紊流现象。In some embodiments, the arc-shaped narrowing portion 111 extends forward to the strip-shaped air outlet 12, and the size of the foremost end of the arc-shaped narrowing portion 111 in the transverse direction is the same as the size of the air outlet 12 in the transverse direction. In other words, the foremost end of the arc-shaped constricted portion 111 is seamlessly butted with the air outlet 12, so that turbulence near the air outlet 12 can be avoided.
在一些实施例中，导流腔11的横截面在由后向前的方向上呈渐缩的形状。具体地，导流腔11的横截面在前后方向上可呈规则的渐缩形状，也可以呈不规则的渐缩形状。例如，图5所示的导流腔11具有由后向前排列的 梯形容腔112和弧形收口部111，并且，梯形容腔112和弧形收口部111均由后向前地渐缩，由此形成的导流腔11呈由后向前不规则的渐缩形状。In some embodiments, the cross section of the diversion cavity 11 has a tapered shape in a direction from back to front. Specifically, the cross section of the diversion cavity 11 may have a regular tapered shape in the front-to-rear direction, or may have an irregular tapered shape. For example, the diversion cavity 11 shown in FIG. 5 has a ladder-like cavity 112 and an arc-shaped constriction 111 that are arranged from back to front, and both the ladder-like cavity 112 and the arc-shaped constriction 111 are tapered from back to front. The diversion cavity 11 thus formed has an irregularly tapered shape from back to front.
进一步地，导流腔11的最后端在横向上的宽度W 4为出风口12在横向上的宽度W 6的5～10倍。由于导流腔11由后向前渐缩，弧形收口部111与出风口12无缝对接，因此导流腔11最后端的宽度为其最大宽度，出风口12的宽度为导流腔11的最小宽度。也即是，导流腔11的最大宽度为其最小宽度的5～10倍。例如，导流腔11的最大宽度可以为其最小宽度的5倍、6倍、7倍、8倍、9倍或10倍。由此，一方面可确保导流腔11后部具有能够使得进入出风风道10内的大部分气流向上流过的面积，另一方面，还使得出风口12的宽度足够小，使其整体呈竖向延伸的狭缝状出风口12以使得气流由后向前流动时获得足够大的加速，从而获得较大的出风速度和送风距离。更为重要的是，可使得出风口12在竖直方向上均匀出风。导流腔11的最大宽度和最小宽度的上述比例设计是平衡考虑多方面技术问题后所获得的结果，在上述各个方面都达到了较佳的技术效果。反之，如果导流腔11最后端的宽度相比于出风口12的宽度过大，会导致导流腔11后部的面积过大，气流流经导流腔11后部时距出风口12距离较远，此时大部分气流会直接通过导流腔11的后部向上流动，流向出风口12的气流量非常少，这就导致出风口12顶部的出风量较大、出风口12底部和中部的出风量非常小，出风口12的出风非常不均衡。如果导流腔11最后端的宽度与出风口12的宽度倍数较小，二者之间的宽度差别较小，气流由后向前流动时获得的加速效果不明显，出风口12的出风速度和送风距离都比较小。 Further, the width W 4 of the rearmost end of the diversion cavity 11 in the lateral direction is 5-10 times the width W 6 of the air outlet 12 in the lateral direction. Since the diversion cavity 11 is tapered from back to front, and the arc-shaped constriction 111 is seamlessly butted with the air outlet 12, the width of the rear end of the diversion cavity 11 is the maximum width, and the width of the air outlet 12 is the minimum of the diversion cavity 11. width. That is, the maximum width of the diversion cavity 11 is 5-10 times the minimum width. For example, the maximum width of the diversion cavity 11 may be 5 times, 6 times, 7 times, 8 times, 9 times or 10 times of its minimum width. Thus, on the one hand, it can be ensured that the rear part of the diversion cavity 11 has an area capable of allowing most of the airflow entering the air outlet duct 10 to flow upward, and on the other hand, the width of the air outlet 12 is also made small enough to make the whole The slit-shaped air outlet 12 extending vertically allows the airflow to obtain a sufficiently large acceleration when flowing from back to front, so as to obtain a larger air outlet speed and air supply distance. More importantly, it can be obtained that the tuyere 12 can discharge the wind uniformly in the vertical direction. The above-mentioned proportional design of the maximum width and the minimum width of the diversion cavity 11 is a result obtained after a balanced consideration of various technical problems, and a better technical effect is achieved in all the above aspects. Conversely, if the width of the rear end of the diversion cavity 11 is too large compared to the width of the air outlet 12, the area at the rear of the diversion cavity 11 will be too large. At this time, most of the air flow will directly flow upward through the rear of the diversion cavity 11, and the air flow to the air outlet 12 is very small, which results in a large amount of air at the top of the air outlet 12, The air output is very small, and the air output from the air outlet 12 is very uneven. If the width of the rear end of the diversion cavity 11 and the width of the air outlet 12 are smaller, the difference in width between the two is small, and the acceleration effect obtained when the air flows from back to front is not obvious, and the air outlet speed of the air outlet 12 is equal to The air supply distance is relatively small.
在一些实施例中，导流腔11的横截面在由后向前的方向上呈渐缩的形状。导流腔11的最后端在横向上的宽度W 4与导流腔11在前后方向上的深度H 4之间的比值为范围在2:11～2:9之间的任意比值。例如，宽度W 4与深度H 4之间的比值可以为2:11、2:10或2:9。由此，可以使得导流腔11后部允许通过的气流量与能够在导流腔11内后向前地获得较佳加速的气流量之间保持合理的比例关系，避免宽度W 4与深度H 4之间的比值过小导致流向出风口12的气流加速不够或宽度W 4与深度H 4之间的比值过大导致流向出风口12底部的气流量大、出风口12底部的气流量小的问题。 In some embodiments, the cross section of the diversion cavity 11 has a tapered shape in the direction from back to front. The ratio between the width W 4 of the rear end of the diversion cavity 11 in the lateral direction and the depth H 4 of the diversion cavity 11 in the front and rear direction is an arbitrary ratio ranging from 2:11 to 2:9. For example, the ratio between the width W 4 and the depth H 4 may be 2:11, 2:10, or 2:9. Therefore, it is possible to maintain a reasonable proportional relationship between the air flow rate allowed to pass through the rear portion of the diversion cavity 11 and the air flow rate capable of obtaining better acceleration backward and forward in the diversion cavity 11, avoiding the width W 4 and the depth H. If the ratio between 4 is too small, the air flow to the air outlet 12 is not accelerated enough or the ratio between the width W 4 and the depth H 4 is too large, and the air flow to the bottom of the air outlet 12 is large, and the air flow to the bottom of the air outlet 12 is small. problem.
在一些实施例中，弧形导流板13在前后方向上的长度H 5与导流腔11在前后方向上的深度H 4之间的比值为范围在4:11～7:11之间的任意比值。 可以理解的是，弧形导流板13在前后方向上的长度H 5为弧形导流板13的前端和后端在前后方向上的垂直距离。例如，长度H 5与深度H 4之间的比值可以为4:11、5:11、6:11或7:11。由此，一方面可确保导流腔11后部具有能够使得进入出风风道10内的大部分气流向上流动的面积，另一方面，还可确保弧形收口部111具有合理的长度，以使得对从下往上流动的部分气流进行较佳的加速，以获得较大的出风速度。反之，如果长度H 5与深度H 4之间的比值过小，则弧形收口部111对气流的加速作用不明显，出风口12的出风速度小。如果长度H 5与深度H 4之间的比值过大，则导流腔11内的大部分气流都会在弧形收口部111的作用下加速从出风口12的底部送出，导致出风口12底部风量大、顶部风量小的送风不匀现象。 In some embodiments, the ratio between the length H 5 of the arc-shaped deflector 13 in the front- rear direction and the depth H 4 of the deflector cavity 11 in the front-rear direction is in the range of 4:11 to 7:11. Any ratio. It can be understood that the length H 5 of the arc-shaped deflector 13 in the front-rear direction is the vertical distance between the front and rear ends of the arc-shaped deflector 13 in the front-rear direction. For example, the ratio between the length H 5 and the depth H 4 may be 4:11, 5:11, 6:11, or 7:11. As a result, on the one hand, it can be ensured that the rear portion of the diversion cavity 11 has an area capable of causing most of the airflow entering the air outlet duct 10 to flow upward, and on the other hand, it can also be ensured that the arc-shaped constricted portion 111 has a reasonable length. This allows a better acceleration of the part of the airflow flowing from bottom to top to obtain a larger wind speed. Conversely, if the ratio between the length H 5 and the depth H 4 is too small, the arc-shaped constricted portion 111 has no obvious acceleration effect on the air flow, and the air outlet speed of the air outlet 12 is small. If the ratio between the length H 5 and the depth H 4 is too large, most of the airflow in the diversion cavity 11 will be accelerated and sent out from the bottom of the air outlet 12 under the action of the arc-shaped narrowing part 111, resulting in air volume at the bottom of the air outlet 12 Large and small air volume at the top, uneven air supply.
在一些实施例中，导流腔11内设有位于出风口12内侧的多个沿前后方向延伸的导流片14，多个导流片14在竖直方向上间隔排列，用于引导导流腔11内的气流朝向出风口12流动。In some embodiments, the guide cavity 11 is provided with a plurality of guide vanes 14 located inside the air outlet 12 extending in the front-to-rear direction, and the plurality of guide vanes 14 are arranged at intervals in the vertical direction for guiding the guide. The air flow in the cavity 11 flows toward the air outlet 12.
进一步地，导流片14在前后方向上的长度W 1小于等于弧形导流板13在前后方向上的长度H 5，以使得导流片14处于弧形收口部111内。也就是说，本发明在弧形收口部111内设有多个沿竖向间隔排列的多个导流片14，以便于通过弧形收口部111与导流片14的配合使得出风口12在竖直方向上的出风更加均匀。导流片14处在弧形收口部111内，可避免对导流腔11的后部空间内流动的气流产生前后方向的引导作用，以利于进入出风风道10内的气流从下往上地流动，从而利于出风口12处实现竖直方向上的均匀出风。 Further, the length W 1 of the baffle 14 in the front-rear direction is less than or equal to the length H 5 of the arc-shaped baffle 13 in the front-rear direction, so that the baffle 14 is in the arc-shaped constriction 111. That is to say, in the present invention, a plurality of guide vanes 14 arranged at intervals in the vertical direction are provided in the arc-shaped constricted portion 111, so as to facilitate the cooperation of the arc-shaped constricted portion 111 and the guide vane 14 to make the air outlet 12 in The wind in the vertical direction is more even. The guide vane 14 is located in the arc-shaped constriction 111, which can prevent the airflow flowing in the rear space of the diversion cavity 11 from leading back and forth, so as to facilitate the airflow entering the air outlet duct 10 from bottom to top Ground flow is beneficial to achieve uniform air discharge in the vertical direction at the air outlet 12.
在一些实施例中，导流腔11内设有位于出风口12内侧的多个沿前后方向延伸的导流片14，多个导流片14在竖直方向上间隔排列，用于引导导流腔11内的气流朝向出风口12流动。进一步地，条形出风口12位于出风风道10的前侧，导流片14可包括从下至上地由后向前弯曲延伸的弧形区段141和由弧形区段141的末端向前延伸至条形出风口12的平直区段142。由此，可通过该特别形状的弧形区段141将由下至上流动的气流中的预设量气流保留在其内侧，并尽可能地减小该部分气流遇到弧形区段141后的流动阻力的前提下将其导流至平直区段142，通过平直区段142将该预设量的气流引导至出风口12，从而通过多个导流片14的配合进一步提高出风口12在竖直方向上的出风均匀性。In some embodiments, the guide cavity 11 is provided with a plurality of guide vanes 14 located inside the air outlet 12 extending in the front-to-rear direction, and the plurality of guide vanes 14 are arranged at intervals in the vertical direction for guiding the guide. The air flow in the cavity 11 flows toward the air outlet 12. Further, the strip-shaped air outlet 12 is located on the front side of the air outlet duct 10, and the deflector 14 may include an arc-shaped section 141 bent from back to front from bottom to top, and an arc section 141 extending from the end of the arc-shaped section 141 toward the front. The straight section 142 of the strip-shaped air outlet 12 extends forward. Thereby, the preset amount of airflow in the airflow flowing from bottom to top can be kept inside by the arc-shaped section 141 of special shape, and the flow of this part of the airflow after encountering the arc-shaped section 141 can be reduced as much as possible. Under the premise of resistance, it is guided to the flat section 142, and the preset amount of airflow is guided to the air outlet 12 through the flat section 142, so that the cooperation of the plurality of guide vanes 14 further improves the air outlet 12 The uniformity of the wind in the vertical direction.
进一步地，本发明在导流片14邻近出风口12的前部特别设计有平直区段142，可通过平直区段142引导气流水平地经出风口12送出，由此，可使得射流装置1送出的气流与柜式空调室内机的换热气流出口送出的气流方向保持一致，从而在确保两股气流较佳的混合效果的前提下，使得柜式空调室内机的整体送风速度较高、整体送风距离较远。Further, in the present invention, a flat section 142 is specially designed on the front of the guide vane 14 adjacent to the air outlet 12, and the flat section 142 can guide the air flow to be sent horizontally through the air outlet 12, thereby making the jet device 1 The air flow sent out is consistent with the direction of the air flow sent from the heat exchange air outlet of the cabinet air conditioner indoor unit, so that the overall air supply speed of the cabinet air conditioner indoor unit is higher while ensuring a better mixing effect of the two air streams , The overall air supply distance is relatively long.
在一些实施例中，弧形区段141在前后方向上的长度W 3大于等于平直区段142在前后方向上的长度W 2。由此，一方面，可使得弧形区段141在前后方向上具有相对较长的长度，以增大弧形区段141对气流的引导路径长度，减小弧形区段141的弯曲度，从而尽可能地减小气流遇到弧形区段141后的流动阻力。另一方面，在保证平直区段142的正常导流功能的基础上使得平直区段142在前后方向上的长度较短，以减小整个导流片14在前后方向上的长度，从而减小了射流装置1在前后方向上的尺寸，使其更适用于结构紧凑、体积要求较高的柜式空调室内机。 In some embodiments, the length W 3 of the arc-shaped section 141 in the front-rear direction is greater than or equal to the length W 2 of the straight section 142 in the front-rear direction. Thus, on the one hand, the arc-shaped section 141 can be made to have a relatively long length in the front-to-rear direction, so as to increase the guide path length of the arc-shaped section 141 to the airflow and reduce the curvature of the arc-shaped section 141. Therefore, the flow resistance after the airflow encounters the arc-shaped section 141 is reduced as much as possible. On the other hand, on the basis of ensuring the normal diversion function of the straight section 142, the length of the straight section 142 in the front-to-rear direction is made shorter, so as to reduce the length of the entire baffle 14 in the front-to-rear direction, thereby The size of the jet device 1 in the front-to-rear direction is reduced, making it more suitable for a cabinet-type air conditioner indoor unit with compact structure and high volume requirements.
在一些实施例中，每个导流片14的平直区段142在前后方向上的长度均相等，每个导流片14的弧形区段141在前后方向上的长度均相等。也就是说，每个导流片14的尺寸都是相同的，以便于开模，节省成本。申请人经过深入的分析和大量的仿真、试验等验证了：只要按照上面实施例中的方案设计导流腔11、弧形导流板13和/或导流片14的尺寸，并且射流风机20持续地朝向出风风道10送风，即使每个导流片14的尺寸都相同，也可以实现出风口12在竖直方向上的均匀出风。In some embodiments, the straight section 142 of each guide vane 14 has the same length in the front-rear direction, and the arc-shaped section 141 of each guide vane 14 has the same length in the front-rear direction. In other words, the size of each guide vane 14 is the same to facilitate mold opening and save cost. The applicant has verified through in-depth analysis and a large number of simulations, experiments, etc.: as long as the size of the deflector cavity 11, the arc deflector 13 and/or the deflector 14 is designed according to the scheme in the above embodiment, and the jet fan 20 The air is continuously blown toward the air outlet duct 10, even if the size of each guide vane 14 is the same, the air outlet 12 can achieve uniform air outlet in the vertical direction.
在另一些实施例中，每个导流片14的平直区段142在前后方向上的长度均相等，由下至上依次排列的多个导流片14的弧形区段141在前后方向上的长度依次增大。由此，可避免位于底部的导流片14向后伸出过长导致保留在其内侧的气流量过多进而使得导流腔11内顶部气流量少的问题，同时，还可以避免多个导流片14的弧形区段141等长可能会出现上部导流片14引导的气流量较少的问题，从而确保了出风口12在竖直方向上的均匀出风。In other embodiments, the straight section 142 of each guide vane 14 has the same length in the front-rear direction, and the arc-shaped sections 141 of the plurality of guide vanes 14 arranged in sequence from bottom to top are in the front-rear direction. The length increases in turn. As a result, it is possible to avoid the problem that the baffle 14 at the bottom extends backwards too long, resulting in too much air flow remaining inside it, thereby reducing the air flow at the top of the diversion cavity 11, and at the same time, it can also avoid multiple guides. The arc-shaped section 141 of the flow vane 14 is of equal length, which may cause the problem of less air flow guided by the upper guide vane 14 so as to ensure uniform air discharge from the air outlet 12 in the vertical direction.
进一步地，多个导流片14的后端端部处于一条倾斜的直线上。也就是说，从下至上依次排的多个导流片14的弧形区段141是等间距依次延长的，进一步确保了出风口12在竖直方向上的均匀出风。Further, the rear ends of the plurality of guide vanes 14 are on an inclined straight line. In other words, the arc sections 141 of the plurality of guide vanes 14 arranged sequentially from bottom to top are sequentially extended at equal intervals, which further ensures that the air outlet 12 discharges uniformly in the vertical direction.
在一些实施例中，出风风道10的底部与射流风机20的顶部之间通过蜗 壳风道30流体连通。具体地，出风风道10的进风口开设在其底部，射流风机20的气流出口位于其顶部，出风风道10的进风口与射流风机20的气流出口之间密封地连接有蜗壳风道30，以将射流风机20送出气流引导至出风风道10。通常情况下，为了获得较佳的送风范围，柜式空调室内机的换热气流出口具有一定的高度。为了避免出风风道10的出风口12过低，在出风风道10的底部与射流风机20的顶部之间设置蜗壳风道30，以使射流装置1更好地与柜式空调室内机的其他结构相匹配。In some embodiments, the bottom of the air outlet duct 10 and the top of the jet fan 20 are in fluid communication through the volute duct 30. Specifically, the air inlet of the air outlet duct 10 is opened at its bottom, the air outlet of the jet fan 20 is located at the top, and the air inlet of the air outlet duct 10 and the air outlet of the jet fan 20 are sealedly connected with a volute wind. The duct 30 is used to guide the air flow sent by the jet fan 20 to the air outlet duct 10. Generally, in order to obtain a better air supply range, the heat exchange airflow outlet of the cabinet air conditioner indoor unit has a certain height. In order to prevent the air outlet 12 of the air outlet duct 10 from being too low, a volute air duct 30 is provided between the bottom of the air outlet duct 10 and the top of the jet fan 20, so that the jet device 1 is better connected to the cabinet air-conditioning room. The other structure of the machine matches.
进一步地，蜗壳风道30在竖直方向上的高度设置成使得出风风道10的出风口12与柜式空调室内机的换热气流出口高度相一致，以便于从出风口12送出的气流与从从换热气流出口流出的换热气流更好的混合。Further, the height of the volute air duct 30 in the vertical direction is set so that the air outlet 12 of the air outlet duct 10 is consistent with the height of the heat exchange airflow outlet of the cabinet-type air conditioner indoor unit, so as to facilitate the delivery of the air from the air outlet 12 The airflow is better mixed with the heat exchange airflow flowing out from the heat exchange airflow outlet.
在一些实施例中，射流风机20可以为离心风机或轴流风机，离心风机和轴流风机的体积小，射程远，非常适用于从侧部吸风并向上送风。In some embodiments, the jet fan 20 may be a centrifugal fan or an axial fan. The centrifugal fan and the axial fan are small in size and have a long range, which is very suitable for sucking air from the side and blowing air upwards.
本发明还提供一种柜式空调室内机，图6是根据本发明一个实施例的柜式空调室内机的示意性结构图，参见图6，本发明的柜式空调室内机4包括机壳5，机壳5具有用于向室内输送换热气流的换热气流出口51。换热气流出口51的数量可以为一个，也可以为两个或更多个。机壳5内可设有用于与气流进行换热以产生换热气流的换热装置以及用于驱动气流经机壳5的进风口52进入并经换热气流出口51送出的送风风机，该送风风机可以为贯流风机，贯流风机的数量可以为一个、也可以为两个。The present invention also provides a cabinet type air conditioner indoor unit. FIG. 6 is a schematic structural diagram of a cabinet type air conditioner indoor unit according to an embodiment of the present invention. Referring to FIG. 6, the cabinet type air conditioner indoor unit 4 of the present invention includes a cabinet 5 The casing 5 has a heat exchange airflow outlet 51 for conveying heat exchange airflow into the room. The number of heat exchange airflow outlets 51 may be one, or two or more. The casing 5 may be provided with a heat exchange device for exchanging heat with the airflow to generate a heat exchange airflow, and a blower for driving the airflow into the air inlet 52 of the casing 5 and sending it out through the heat exchange airflow outlet 51. The air supply fan can be a cross flow fan, and the number of cross flow fans can be one or two.
特别地，柜式空调室内机4还包括上述任一实施例所描述的射流装置1，射流装置1用于受控地促使其外部的气流流入其内部并经其出风口12送出、且使得经出风口12送出的未经换热的气流与经换热气流出口51流出的换热气流相混合，避免柜式空调室内机4出风过冷或过热，提高了出风的柔和性和用户的舒适性体验。In particular, the cabinet-type air conditioner indoor unit 4 also includes the jet device 1 described in any of the above embodiments, and the jet device 1 is used to controlly encourage the airflow from the outside to flow into it and send it out through the air outlet 12, and make it pass through The unheated air flow sent from the air outlet 12 is mixed with the heat exchange air flow flowing out through the heat exchange air outlet 51 to avoid overcooling or overheating of the air from the cabinet-type air conditioner indoor unit 4, which improves the softness of the air and the user’s comfort. Comfortable experience.
具有射流装置1的柜式空调室内机4射入的未经换热的气流量较大、送风距离较远，提高了柜式空调室内机4的整体送风量和送风范围。并且，射流装置1射入的未经换热的气流量可调范围较大，满足了用户的多种不同的使用需求。The air flow rate of the cabinet-type air-conditioning indoor unit 4 with the jet device 1 without heat exchange is relatively large and the air supply distance is relatively long, which improves the overall air supply volume and air supply range of the cabinet-type air-conditioning indoor unit 4. In addition, the unheated air flow injected by the jet device 1 has a relatively large adjustable range, which meets a variety of different use requirements of users.
具体地，射流装置1可连接于机壳5，并与机壳5的外形结构相匹配，射流装置1的出风口12与机壳5上的换热气流出口51邻近设置。Specifically, the jet device 1 can be connected to the casing 5 and match the outer structure of the casing 5. The air outlet 12 of the jet device 1 is arranged adjacent to the heat exchange airflow outlet 51 on the casing 5.
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”、“顶”、“底”等用于表示方位或位置关系的用语是以射流装置1和柜式空调室内机4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。Those skilled in the art should also understand that the terms "upper", "lower", "front", "rear", "top", "bottom", etc., used to indicate an orientation or positional relationship in the embodiments of the present invention are Based on the actual use state of the jet device 1 and the cabinet-type air conditioner indoor unit 4, these terms are only used to facilitate the description and understanding of the technical solution of the present invention, and do not indicate or imply that the device referred to or does not have a specific Therefore, it cannot be understood as a limitation of the present invention.
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。So far, those skilled in the art should realize that although multiple exemplary embodiments of the present invention have been illustrated and described in detail herein, they can still be disclosed according to the present invention without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications that conform to the principles of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all these other variations or modifications.

Claims (13)

  1. 一种用于柜式空调室内机的射流装置，所述柜式空调室内机具有沿竖向延伸的换热气流出口，其特征在于，所述射流装置包括：A jet device for a cabinet-type air conditioner indoor unit, the cabinet-type air conditioner indoor unit has a heat exchange airflow outlet extending in a vertical direction, and is characterized in that the jet device includes:
    出风风道，沿竖直方向延伸，且其内限定有竖向延伸的导流腔，所述出风风道的其中一个侧面上开设有沿竖向延伸的条形的出风口；以及The air outlet air duct extends in a vertical direction and defines a vertically extending diversion cavity therein, and one side of the air outlet air duct is provided with a strip-shaped air outlet extending in the vertical direction; and
    射流风机，设置于所述出风风道的下方，并与所述出风风道流体连通，以受控地驱动所述射流装置外部的气流流进所述出风风道，流进所述出风风道的气流经所述导流腔导流后从所述出风口流出并与从所述换热气流出口流出的换热气流相混合。The jet fan is arranged below the outlet air duct and is in fluid communication with the outlet air duct to controlly drive the airflow outside the jet device to flow into the outlet air duct and into the air outlet duct. The air flow from the air outlet duct is guided by the diversion cavity and then flows out from the air outlet and is mixed with the heat exchange air flow out of the heat exchange air flow outlet.
  2. 根据权利要求1所述的射流装置，其特征在于，The jet device according to claim 1, wherein:
    所述出风口位于所述出风风道的前侧；The air outlet is located at the front side of the air outlet duct;
    所述出风风道的内部对称地设有两个竖向延伸的弧形导流板，两个所述弧形导流板由后向前地朝相互靠近的方向凸出弯曲，以使得所述导流腔邻近所述出风口的前部形成渐缩的弧形收口部。The inside of the air outlet air duct is symmetrically provided with two arc-shaped deflectors extending vertically, and the two arc-shaped deflectors protrude and bend toward each other from back to front, so as to make the The diversion cavity is adjacent to the front of the air outlet to form a tapered arc-shaped constriction.
  3. 根据权利要求2所述的射流装置，其特征在于，The jet device according to claim 2, wherein:
    所述弧形收口部向前延伸至所述出风口，且所述弧形收口部的最前端在横向上的尺寸与所述出风口在横向上的尺寸一致。The arc-shaped necking portion extends forward to the air outlet, and the size of the foremost end of the arc-shaped necking portion in the transverse direction is consistent with the size of the air outlet in the transverse direction.
  4. 根据权利要求3所述的射流装置，其特征在于，The jet device according to claim 3, wherein:
    所述导流腔的横截面在由后向前的方向上呈渐缩的形状；且The cross section of the diversion cavity is in a tapered shape in a direction from back to front; and
    所述导流腔的最后端在横向上的宽度为所述出风口在横向上的宽度的5～10倍。The width of the rearmost end of the diversion cavity in the transverse direction is 5-10 times the width of the air outlet in the transverse direction.
  5. 根据权利要求2所述的射流装置，其特征在于，The jet device according to claim 2, wherein:
    所述导流腔的横截面在由后向前的方向上呈渐缩的形状；且The cross section of the diversion cavity is in a tapered shape in a direction from back to front; and
    所述导流腔的最后端在横向上的宽度与所述导流腔在前后方向上的深度之间的比值为范围在2:11～2:9之间的任意比值。The ratio between the width of the rearmost end of the diversion cavity in the transverse direction and the depth of the diversion cavity in the front and rear direction is an arbitrary ratio ranging from 2:11 to 2:9.
  6. 根据权利要求2所述的射流装置，其特征在于，The jet device according to claim 2, wherein:
    所述弧形导流板在前后方向上的长度与所述导流腔在前后方向上的深度之间的比值为范围在4:11～7:11之间的任意比值。The ratio between the length of the arc-shaped deflector in the front-rear direction and the depth of the deflector cavity in the front-rear direction is an arbitrary ratio ranging from 4:11 to 7:11.
  7. 根据权利要求2所述的射流装置，其特征在于，The jet device according to claim 2, wherein:
    所述出风风道的横截面呈梯形，所述梯形的上底位于所述出风口所在的前侧，所述梯形的下底位于背离所述出风口的后侧；The cross section of the air outlet air duct is trapezoidal, the upper bottom of the trapezoid is located on the front side where the air outlet is located, and the lower bottom of the trapezoid is located on the back side away from the air outlet;
    两个所述弧形导流板的后端分别由所述出风风道对应于所述梯形两个腰部的两个侧板向前弯曲延伸。The rear ends of the two arc-shaped baffles are respectively bent and extended forward by the two side plates of the air outlet duct corresponding to the two waists of the trapezoid.
  8. 根据权利要求2所述的射流装置，其特征在于，The jet device according to claim 2, wherein:
    所述导流腔内设有位于所述出风口内侧的多个沿前后方向延伸的导流片，所述多个导流片在竖直方向上间隔排列；且A plurality of guide vanes extending in the front-rear direction are provided in the diversion cavity inside the air outlet, and the plurality of guide vanes are arranged at intervals in the vertical direction; and
    所述导流片在前后方向上的长度小于等于所述弧形导流板在前后方向上的长度，以使得所述导流片处于所述弧形收口部内。The length of the deflector in the front-rear direction is less than or equal to the length of the arc-shaped deflector in the front-rear direction, so that the deflector is in the arc-shaped constriction.
  9. 根据权利要求1所述的射流装置，其特征在于，The jet device according to claim 1, wherein:
    所述导流腔内设有位于所述出风口内侧的多个沿前后方向延伸的导流片，所述多个导流片在竖直方向上间隔排列；且A plurality of guide vanes extending in the front-rear direction are provided in the diversion cavity inside the air outlet, and the plurality of guide vanes are arranged at intervals in the vertical direction; and
    所述出风口位于所述出风风道的前侧，所述导流片包括从下至上地由后向前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出风口的平直区段。The air outlet is located on the front side of the air outlet duct, and the guide vane includes an arc section extending from bottom to top from back to front and extending forward from the end of the arc section to The straight section of the air outlet.
  10. 根据权利要求9所述的射流装置，其特征在于，The jet device according to claim 9, wherein:
    所述弧形区段在前后方向上的长度大于等于所述平直区段在前后方向上的长度。The length of the arc-shaped section in the front-to-rear direction is greater than or equal to the length of the straight section in the front-to-rear direction.
  11. 根据权利要求9所述的射流装置，其特征在于，The jet device according to claim 9, wherein:
    每个所述导流片的平直区段在前后方向上的长度均相等；且The lengths of the straight sections of each of the guide vanes in the front and rear directions are equal; and
    每个所述导流片的弧形区段在前后方向上的长度均相等；或者，由下至上依次排列的多个所述导流片的弧形区段在前后方向上的长度依次增大，且所述多个导流片的后端端部处于一条倾斜的直线上。The arc-shaped sections of each of the guide vanes have the same length in the front-rear direction; or, the lengths of the arc-shaped sections of the plurality of the guide vanes arranged sequentially from bottom to top in the front-to-rear direction increase sequentially , And the rear ends of the plurality of guide vanes are on an inclined straight line.
  12. 根据权利要求1所述的射流装置，其特征在于，The jet device according to claim 1, wherein:
    所述出风风道的底部与所述射流风机的顶部之间通过蜗壳风道流体连通；The bottom of the air outlet air duct is in fluid communication with the top of the jet fan through a volute air duct;
    所述射流风机为离心风机或轴流风机。The jet fan is a centrifugal fan or an axial fan.
  13. 一种柜式空调室内机，其特征在于，包括：A cabinet type air conditioner indoor unit, which is characterized in that it comprises:
    机壳，具有用于向室内输送换热气流的换热气流出口；以及The casing has a heat exchange airflow outlet for conveying heat exchange airflow into the room; and
    权利要求1-12任一项所述的射流装置，用于受控地促使其外部的气流流入其内部并经其出风口送出、且使得经所述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。The jet device according to any one of claims 1-12, which is used to controlly promote the airflow from the outside to flow into the inside and send out through the air outlet, and make the airflow sent through the air outlet and the heat exchange The heat exchange air flows out of the air outlet are mixed.
PCT/CN2021/090685 2020-07-30 2021-04-28 Jet device for cabinet air conditioner indoor unit and cabinet air conditioner indoor unit WO2021223648A1 (en)

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CN202010751713.7A CN114060914A (en) 2020-07-30 2020-07-30 Jet device for cabinet air conditioner indoor unit and cabinet air conditioner indoor unit
CN202010751713.7 2020-07-30

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CN207962850U (en) * 2017-12-26 2018-10-12 东莞市卓为空调机电设备有限公司 A kind of double through-flow jet stream air-conditioning
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EP1035385A2 (en) * 1999-03-11 2000-09-13 Adam Bernhardt Method for temperature control of a hall and device for curring out this method
KR20110003838A (en) * 2009-07-06 2011-01-13 주식회사 코벡엔지니어링 Heat pump air handling unit with jet fan
CN203518147U (en) * 2013-01-18 2014-04-02 珠海格力电器股份有限公司 Air conditioner air duct structure and air conditioner with same
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CN117073083A (en) * 2023-08-18 2023-11-17 湖南省湘能舒适环境科技有限责任公司 Full-effect air conditioner
CN117073083B (en) * 2023-08-18 2024-06-04 湖南省湘能舒适环境科技有限责任公司 Full-effect air conditioner

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