WO2021190237A1 - 空调室内机 - Google Patents

空调室内机 Download PDF

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Publication number
WO2021190237A1
WO2021190237A1 PCT/CN2021/077899 CN2021077899W WO2021190237A1 WO 2021190237 A1 WO2021190237 A1 WO 2021190237A1 CN 2021077899 W CN2021077899 W CN 2021077899W WO 2021190237 A1 WO2021190237 A1 WO 2021190237A1
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WO
WIPO (PCT)
Prior art keywords
grid
indoor unit
air inlet
grille
air
Prior art date
Application number
PCT/CN2021/077899
Other languages
English (en)
French (fr)
Inventor
孙婷
郝本华
王宪强
蔡婷婷
成汝振
Original Assignee
青岛海尔空调器有限总公司
海尔智家股份有限公司
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Publication date
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 WO2021190237A1 publication Critical patent/WO2021190237A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • 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
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the invention relates to an air conditioner, in particular to an air conditioner indoor unit.
  • the air inlet of the indoor unit of the air conditioner is usually set on the top of the cabinet, and the air inlet is provided with an air inlet grille, and the airflow enters the cabinet from top to bottom.
  • This structural design has at least two defects. One is that the installation position of the indoor unit of the air conditioner must be kept at a certain distance from the top wall to ensure that the airflow can enter the cabinet smoothly.
  • the installation position of the indoor unit is relatively limited; the other is dust. It is easy to fall into the cabinet from the inlet grille, causing dust to accumulate, which is difficult to clean.
  • the usual solution in the prior art is to relocate the air inlet to another position of the cabinet, but this will cause a major change in the overall structure of the indoor unit of the air conditioner, and increase the design cost and mold cost.
  • a common solution in the prior art is to set the air inlet grille to be openable and closable, and the air inlet grille opens the air inlet only when the air conditioner indoor unit is running, which will undoubtedly lead to the air conditioner indoor unit. The structure and control are more complicated, and the cost will increase accordingly.
  • An object of the present invention is to overcome at least one defect in the prior art and provide an air conditioner indoor unit with flexible installation location and simple structure.
  • Another object of the present invention is to prevent dust from falling into the cabinet through the upward style grille.
  • a further object of the present invention is to reduce the wind resistance of the airflow passing through the upper inlet style grille, improve the smoothness of the air inlet, and increase the air inlet volume.
  • the present invention provides an air conditioner indoor unit, including a cabinet with an upper air inlet opening at the top of the cabinet, and an upward air inlet grille is provided at the upper air inlet, and the upward air inlet grill includes :
  • each of the upper gratings includes a first grating that is inclined backwards in the depth direction from top to bottom, so that Between the first grid plates of two adjacent upper grid bars, an upper grid hole for air flow and facing the upper front of the casing is formed.
  • the contour line at the foremost end of the upper grid bar is more forward than the contour line at the rearmost end of an upper grid bar adjacent to the front side of the upper grid bar;
  • the contour line at the foremost end of the upper grid bar is flush with the contour line at the rearmost end of an upper grid bar adjacent to the front side of the upper grid bar.
  • the first grid plate extends backward in a straight line from top to bottom to form a straight plate shape.
  • the first grid plate extends backwards along a smooth curve from top to bottom to form an upwardly arched curved plate shape.
  • the upward style grille further includes an outer frame, and both ends of each upper grille bar are respectively connected to the outer frame; and
  • Both end edges of the first grid plate and the outer frame are connected by vertically extending end plates.
  • the upper grid bar further includes a second grid plate connected to the bottom edge of the first grid plate, and both ends of the second grid plate are respectively connected to the outer frame.
  • the second grid plate is a straight plate body extending backward in a horizontal direction.
  • the overall cross-section of the casing is a right triangle or a sector with a central angle of 90°;
  • the shape of the upward entry grille is the same as the shape of the cross section of the casing.
  • the cabinet further has a lower air inlet opening at the bottom thereof and an air outlet opening at the front side thereof
  • the air conditioner indoor unit further includes:
  • the fan is arranged in the casing and is used to promote the airflow from the upper air inlet and the lower air inlet toward the air outlet;
  • the upper heat exchanger and the lower heat exchanger are arranged in the casing, and are respectively located above and below the fan, so as to communicate with the air flow from the upper air inlet and the lower air inlet to the fan, respectively. Heat exchange.
  • a bottom inlet style grille is provided at the lower air inlet, and the bottom inlet style grille includes:
  • At least two layers of grid plates are stacked and arranged at intervals in the up and down direction, and each of the grid plates includes a plurality of lower grids arranged at intervals, so as to form an airflow passage between two adjacent lower grids. ⁇ Grid hole;
  • the air-conditioning indoor unit of the present invention is provided with an upward inlet style grille at its upper air inlet.
  • the upward inlet style grille includes a plurality of upper grille bars extending transversely and arranged at intervals along the depth direction of the cabinet.
  • the upper grille bars are specially designed to have The first grid plate is inclined downward and backward, so that an upper grid hole facing the upper front of the casing is formed between the first grid plates of two adjacent upper grid bars for air flow to pass through.
  • the air intake is stable, and there will be no return air phenomenon, so The location of the indoor unit of the air conditioner can be selected at will, which is more flexible.
  • the present invention does not need to change the position of the upper air inlet on the basis of the structure of the traditional air-conditioning indoor unit, and only by specially designing the structure of the upper inlet style grille, the air inlet direction of the cabinet can be entered from top to bottom.
  • the air intake is changed from the top to the front, the structure is very simple, and there is almost no need to increase the cost.
  • the contour line at the foremost end of the upper grid bar is closer to the front than the contour line at the rear end of the upper grid bar adjacent to the front side or the two are flush, so that the entire upward style grid is in the horizontal plane
  • the projection is continuous and uninterrupted. Therefore, the dust from top to bottom falls on the upper surface of the upper grid, which is completely blocked from the outside of the cabinet.
  • the first grid plate extends backwards along a straight line or a smooth curve from top to bottom, thereby forming a straight plate shape or an upwardly arched curved plate shape.
  • the wall surface of the upper grid hole can be made smoother and reduced The wind resistance of the airflow through the upper grille is reduced, and the noise is reduced; on the other hand, the aperture size of the upper grille is enlarged, and the air inlet space of the upper inlet style grille is increased, so that the air inlet is more smooth and the air inlet volume is larger.
  • Fig. 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention
  • FIG. 2 is a schematic structural exploded view of an indoor unit of an air conditioner according to an embodiment of the present invention
  • Fig. 3 is a schematic structural diagram of an upward style grill according to an embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view taken along a vertical cross-sectional plane of the upward style grille according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an indoor unit of an air conditioner according to another embodiment of the present invention.
  • Fig. 6 is a schematic structural diagram of a descending style grill according to an embodiment of the present invention.
  • FIG. 7 is a schematic cross-sectional view of a descending style grille according to an embodiment of the present invention taken along a vertical cross-sectional plane;
  • Fig. 8 is a schematic structural exploded view of an indoor unit of an air conditioner according to another embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention
  • FIG. 2 is a schematic structural exploded view of an air conditioner indoor unit according to an embodiment of the present invention.
  • the air conditioner indoor unit 1 of the present invention includes a casing 10 having an upper air inlet 11 opened on the top of the casing 10. Specifically, the upper air inlet 11 may be opened on the top surface of the casing 10.
  • an upward style grill 40 is provided at the upper air inlet 11.
  • Figure 3 is a schematic structural view of an upward style grill according to an embodiment of the present invention
  • Figure 4 is a schematic cross-sectional view of the upward style grill according to an embodiment of the present invention taken along a vertical section (shown in Figure 3).
  • the upward style grid is triangular, and the upward style grid shown in Figure 4 is square).
  • the upward entry style grille 40 includes a plurality of upper grille bars 41 that extend laterally and are arranged at intervals along the depth direction (ie, the front-to-rear direction) of the casing 10.
  • Each upper grille bar 41 includes The first grid plate 411 inclined backward in the depth direction of the ground, so that the first grid plate 411 of two adjacent upper grid bars 41 is formed with an upper grid hole 42 facing the upper front of the casing 10 for air flow to pass through, so as to For air to pass through. Since the upward-entry style grille 40 opens toward the upper and front of the cabinet 10, the front of the air-conditioning indoor unit 1 is relatively open and has sufficient space. The return air phenomenon occurs, so the position of the air conditioner indoor unit 1 can be selected at will, and the flexibility is high.
  • the present invention does not need to change the position of the upper air inlet 11 on the basis of the structure of the traditional air conditioner indoor unit, and only by specially designing the structure of the upper inlet style grill 40, the air inlet direction of the cabinet 10 can be changed from top to bottom.
  • the air intake from the ground is changed to the air intake from the top and the front, which not only achieves a good air intake effect, but also has a very simple structure, which hardly needs to increase the cost.
  • the first grid plate 411 may be an elongated strip-shaped plate body extending laterally along the cabinet 10, and the upper grid hole 42 formed between two adjacent first grid plates 411 is a thin elongated plate extending laterally along the cabinet 10. Long strip hole.
  • the contour line 41a at the foremost end of the upper grid bar 41 is more forward than the contour line 41b at the rearmost end of an upper grid bar 41 adjacent to the front side of the upper grid bar 41.
  • the contour line 41a at the foremost end of the upper grid bar 41 is flush with the contour line 41b at the rearmost end of an upper grid bar 41 adjacent to the front side of the upper grid bar 41. That is to say, the projections of the two adjacent upper grid bars 41 in the horizontal plane have overlapping parts or just meet, so that the projection of the entire upward-entry style grid 40 in the horizontal plane is continuous and uninterrupted. Therefore, from the top The lower dust will fall on the upper surface of the upper grid 41, and thus be completely blocked from the outside of the casing 10. It can be seen that the upward-entry style grill 40 of the present invention not only retains the traditional air-intake function and has a good air-intake effect, but also can play a good role in shielding dust and dust.
  • the first grid plate 411 extends backward in a straight line from top to bottom to form a straight plate shape. In other embodiments, the first grid plate 411 extends backwards along a smooth curve from top to bottom to form an upwardly arched curved plate shape.
  • the first grid plate 411 of these two shapes can make the wall surface of the upper grid hole 42 more smooth, reduce the wind resistance of the air flow through the upper grid hole 42, and reduce the noise; at the same time, it also enlarges the upper grid hole 42.
  • the size of the aperture increases the air inlet space of the upward inlet style grill 40, which makes the air inlet more unobstructed and the air inlet volume is larger.
  • the upward entry style grille 40 further includes an outer frame 43, and both ends of each upper grille 41 are connected to the outer frame 43 respectively.
  • the two end edges of the first grid plate 411 and the outer frame 43 are connected by a vertically extending end plate 44, which strengthens the connection between the first grid plate 411 and the outer frame 43, and improves the upward style of the grid. 40's structural strength.
  • the end plate 44 may extend vertically in the vertical direction, or may extend obliquely in the vertical direction.
  • the width of the bottom edge of the end plate 44 connected with the outer frame 43 in the depth direction of the cabinet 10 may be the same as the projection width of the first grid plate 411 in the horizontal plane.
  • the height of the end plate 44 in the vertical direction is consistent with the height of the first grid plate 411 in this direction. Since the first grid plate 41 is arranged obliquely, the end plate 44 is approximately a triangular plate body.
  • the upper grid 41 also includes a second grid 412 connected to the bottom edge of the first grid 411, and both ends of the second grid 412 are respectively connected to the outer frame 43, which can avoid the elongated first grid.
  • the plate 411 is deformed after long-term use, which improves the structural strength and structural stability of the upward style grid 40.
  • the second grid plate 412 may be a straight plate body extending backward in the horizontal direction.
  • the contact area between the two ends of the flat plate body and the outer frame 43 is larger, so the connection strength and stability are higher.
  • the contour lines of the front and rear ends of the first grid 411 respectively form the contour line of the upper grid 41 at the front end and the contour line at the rear end.
  • the contour line of the front end of the first grid 411 forms the contour line of the upper grid 41 at the foremost end, and the contour line of the rear end of the second grid 412 forms The upper grid 41 is at the rearmost contour line.
  • the overall cross section of the casing 10 is a right-angled triangle or a sector with a central angle of 90°.
  • the “integral” here means that the cross-section of the casing 10 can be a strict right-angled triangle or a sector with a central angle of 90°, or it can be roughly a right-angled triangle or a sector with a central angle of 90°.
  • the position where the two sides intersect may have a chamfer or similar structure.
  • the shape of the upper inlet grille 40 is the same as the shape of the cross section of the casing 10 to ensure that the casing 10 has the largest possible upper air inlet area. In these embodiments, the lengths of the plurality of upper bars 41 of the up-entry style grill 40 are not the same.
  • the casing 10 can be suspended on the wall surface in the space where it is located.
  • Hanging structures 14 are provided on both lateral sides of the casing 10, and the cross-sections of the two lateral sides are the two right-angle sides of the above-mentioned right triangle or the two radii of the above-mentioned sector, so as to facilitate the passage of the two horizontal sides.
  • the hanging structure 14 on the side hangs the cabinet 10 at the corner formed by the two mutually perpendicular walls, thereby not only ensuring the stability of the installation of the air-conditioning indoor unit 1, but also making the space in which the air-conditioning indoor unit 1 is located. It is a corner space where users do not often move, avoiding the influence of the air-conditioning indoor unit on the normal indoor activities of users.
  • Fig. 5 is a schematic structural diagram of an air conditioner indoor unit according to another embodiment of the present invention.
  • the cross-section of the casing 10 may be square as a whole.
  • the hanging structure can be opened on the rear side of the casing 10 opposite to the front side 10a.
  • the cross-section of the casing 10 may be circular, pentagonal or other suitable shapes as a whole, and the shape of the upward-entry grill 40 is the same as the cross-section of the casing 10.
  • the casing 10 is used to hang on the wall in the space where it is located, and does not occupy the floor space in the room.
  • the space below it close to the ground can be freed up for users to store items, etc. Make good use of indoor space.
  • the casing 10 also has a lower air inlet (not shown in the figure) opened at the bottom thereof and an air outlet 13 opened on the front side thereof.
  • the air-conditioning indoor unit 1 of the present invention has two upper and lower air inlets, which enlarges the air intake volume, thereby expanding the air output of the air-conditioning indoor unit 1.
  • the air outlet 13 is arranged on the front side of the cabinet 10, which can expand the air supply range of the indoor unit 1 of the air conditioner.
  • the air-conditioning indoor unit 1 further includes a fan 30, an upper heat exchanger 21, and a lower heat exchanger 22.
  • the fan 30 is arranged in the casing 10 and is used for urging the airflow to flow from the upper air inlet 11 and the lower air inlet toward the air outlet 13.
  • the fan 30 is a double-suction centrifugal fan, and has a volute 31 and a double-suction impeller 32 arranged in the volute 31.
  • the upper heat exchanger 21 and the lower heat exchanger 22 are both arranged in the casing 10 and respectively located above and below the fan 30 to exchange heat with the airflow flowing from the upper air inlet 11 and the lower air inlet to the fan 30 respectively.
  • the air conditioner indoor unit 1 includes two heat exchangers, which are respectively used for heat exchange with the airflow entering the casing 10 through two air inlets, and the two heat exchangers are located far away from the air outlet 13 , Users are not easy to reach, it can solve the problem that the existing wall-mounted wall-mounted air conditioner only has one heat exchanger, and the heat exchanger is adjacent to the air outlet, which leads to non-compliance with safety regulations and easy to blow out the condensed water, which improves the user The use of security improves the user experience.
  • the two air inlets are respectively located at the top and bottom of the casing 10, they are not easily accessible by the user, and even if the heat exchanger is close to the air inlet, any safety hazard will not be caused.
  • the air outlet 13 is located on the front side of the casing 10, which is easier for users to reach.
  • the heat exchanger is arranged adjacent to the air outlet, which may cause safety hazards such as burns and electric shocks.
  • the condensed water generated on the heat exchanger may be blown out with the airflow. , Affect the user experience.
  • the length direction of the cabinet 10 extends in the vertical direction. That is, the shape of the air-conditioning indoor unit 1 is closer to that of a vertical air-conditioning indoor unit, which facilitates the air inlet and outlet and installation of the air-conditioning indoor unit 1.
  • the air outlet 13 is a strip-shaped air outlet opened on the front side of the cabinet 10 and extending in the vertical direction, thereby expanding the air outlet range of the air-conditioning indoor unit 1 in the vertical direction.
  • the air outlet 13 may be provided with a laterally swinging air guiding mechanism to expand the air outlet range of the air-conditioning indoor unit 1 in the lateral direction.
  • At least one side of the cabinet 10 except for the front side 10a has a hanging structure 14 for suspending the cabinet 10 on a wall surface.
  • the hanging structure 14 may be a hanging hole, and the housing 10 can be suspended on the wall by inserting a hook fixed on the wall into the hanging hole.
  • the upper heat exchanger 21 may be substantially horizontally arranged above the fan 30.
  • the lower heat exchanger 22 may be arranged substantially horizontally below the fan 30.
  • a bottom inlet style grill 50 is provided at the bottom air inlet.
  • the shape of the descending style grill 50 can match the shape of the casing 10.
  • the bottom entry style grille 50 can be symmetrically arranged with the top entry style grille 40, or it can be an ordinary air inlet grille, or it can be another specially designed air inlet grille.
  • Fig. 6 is a schematic structural diagram of a descending style grill according to an embodiment of the present invention
  • Fig. 7 is a schematic cross-sectional view of a descending style grill according to an embodiment of the present invention, taken along a vertical sectional plane.
  • the downward-entry style grill 50 includes at least two layers of grille plates 51 stacked in an up-and-down direction at intervals.
  • Each grid plate 51 includes a plurality of lower grid bars 511 arranged at intervals to form a lower grid hole 512 for air flow between two adjacent lower grid bars 511.
  • Each lower grid bar 511 is elongated, and the lower grid hole 512 between two adjacent lower grid bars 511 is also elongated.
  • the number of lower grid holes thus formed is relatively large and relatively dense, so the air intake of the lower air inlet is not affected, and the wind resistance is small.
  • each lower grid hole 512 of each layer of grid plates 51 in the horizontal plane falls into the projection of the lower grid bars 511 of other layers of grid plates 51 in the horizontal plane. That is to say, in the vertical direction, each lower grid hole 512 of each layer of grid plates 51 can be completely blocked by the lower grid bars 511 of other layers of grid plates 41 in the vertical direction. Therefore, the condensed water generated on the lower heat exchanger 22 can fall vertically on the lower grid 511 under the action of its own gravity, instead of dripping on the outside of the casing 10 through any of the lower grid holes 512, which improves the use of users.
  • the bottom inlet style grill 50 of the present invention integrates the dual functions of the traditional inlet style grill and the water tray without affecting the air intake volume of the bottom air inlet, and has a very simple structure.
  • each lower grid bar 511 of each grid plate 51 has an upwardly opening groove 513 for collecting the condensed water generated by the lower heat exchanger 22.
  • the groove 513 with the upward opening can collect a relatively large amount of condensed water and prevent the condensed water from dripping from the lower grid 511 to the outside of the casing 10.
  • the groove 513 may extend along the length direction of the lower grid bar 511, and the vertical section of the groove 513 may be arc, V, U, or other suitable shapes.
  • any other layer of grating plates 51 except for the lowermost layer is directly or indirectly in fluid communication with the lowermost layer of grating plates 51 to allow collection on any layer of grating plates 51 except for the lowermost layer.
  • the condensed water flows to the lowest grille 51. Thereby, it is convenient to discharge the condensed water collected by all the grille plates 51 to the outside of the air conditioner indoor unit 1 through the lowest grille plate 51. For example, the condensed water collected by the entire lower inlet grille 50 can be discharged to the outside of the air-conditioning indoor unit 1 through a drain pipe communicating with the lowermost grille plate 51.
  • each layer of grid plates 51 further includes an outer grid frame 514, and a sink 515 for collecting condensed water is formed on the inner edge of the outer grid frame 514. Both ends of each lower grid 511 of each layer of grid plates 51 are connected to the outer grid frame 514 of the layer of grid plates 51, and the grooves 513 of each lower grid plate 511 of each layer of grid plates 51 are connected with each other. The collecting grooves 515 of the grid plate 51 of this layer are connected, so that the condensed water collected by each lower grid 511 flows into the collecting grooves 515 through the grooves 513 to be collected.
  • the collecting grooves 515 of any other layer of grid plates 51 except for the lowermost layer are directly connected to the collecting grooves 515 of the lowermost layer of grid plates 51 through the diversion holes 516, so as to facilitate excluding the lowermost layer.
  • the condensed water collected by any other layer of grating plate 51 directly flows to the collecting groove 515 of the lowermost layer of grating plate 51.
  • the confluence grooves 515 of any grid plate 51 of any other layer except the bottom layer are directly converged with the grid plate 51 adjacent to the grid plate 51 through the diversion hole 516.
  • the grooves 515 are connected, so that the condensed water collected by the grid plates 51 of each layer flows down layer by layer, until it flows to the collecting groove 515 of the grid plate 51 of the lowest layer.
  • the diversion hole 516 may be opened on at least one end of the grid plate 51 and communicate with the confluence groove 515 thereof.
  • the bottom entry style grille 50 includes two upper and lower grille plates 51, and one end of the upper grille plate 51 is provided with a vertical downward protruding and extending to the lower grille plate 51
  • the diversion pillar 517 and the diversion pillar 517 are hollow inside, thereby forming a diversion hole 516.
  • the bottom of the diversion column 517 can extend into the confluence groove 515 of the lower grid plate 51, and the bottom of the diversion post 517 is provided with a gap, so that the diversion hole 516 formed therein and the confluence groove of the lower grid plate 51 515 is connected.
  • the guide column 517 is also used to fix and support the upper grid plate 51.
  • other structures may be additionally provided to fix and support the upper grid plate 51.
  • diversion columns and diversion holes may also be provided at the other end or other edge positions of the upper grid plate 51.
  • the groove 513 is a through groove that penetrates the lower grid bar 511 along the length direction of the lower grid bar 511, that is, the groove 513 is a through groove with both ends open to facilitate communication with the collecting groove 515.
  • the height of the lower grid bar 511 in the vertical direction gradually decreases from its middle to its two ends.
  • the lower grid bar 511 can be roughly in the middle height and an arch shape with low ends, which is conducive to the collection of the lower grid bar 511.
  • the condensed water flows into the collecting trough 515 along the groove 513, which avoids the problem that the condensed water stays on the lower grid 511 for a long time, which causes the water content of the intake airflow to be large, and the lower heat exchanger 22 is prone to frost.
  • each layer of grid plates 51 is inclined at a preset angle to the horizontal, which facilitates the condensate collected by each layer of grid plates 51 to flow to one side of the grid plate 51 under its own gravity. Therefore, it is collected together for easy discharge, and avoids the problem that the condensed water stays on the grille plate 51 for a long time, which causes the intake air flow to have a large water content, which causes the lower heat exchanger 22 to easily frost.
  • the diversion hole 516 may be provided at the lower end of the grid plate 51 to facilitate the drainage of condensed water.
  • the projection of the descending style grill 50 in the horizontal plane is consistent with the cross-sectional shape of the cabinet 10.
  • the projection of the downward-entry style grill 50 in the horizontal plane shown in FIG. 6 is a square, which is suitable for a square cabinet. It can be understood that when the cross-section of the casing 10 is triangular as a whole, the projection of the descending style grill 50 on the horizontal plane is also triangular.
  • the bottom entry style grill 50 may also be a common entry style grill that only has a grill function.
  • a serpentine, laminated or other suitable water receiving tray 60 can be arranged below the lower heat exchanger 22, as long as it does not affect the air intake.
  • the present invention also has a special design for the structure of the upper heat exchanger 21 and the fan volute 31.
  • Fig. 8 is a schematic structural exploded view of an indoor unit of an air conditioner according to another embodiment of the present invention.
  • the upper heat exchanger 21 has a through hole 211 that penetrates up and down.
  • the top of the volute 31 is provided with an upper air inlet 311.
  • the projection of the upper air inlet 311 in the horizontal plane falls into the projection of the through hole 211 in the horizontal plane. That is to say, the upper heat exchanger 21 does not have a heat exchange structure directly opposite to the upper air inlet 311 in the vertical direction. Therefore, the condensed water generated by the upper heat exchanger 21 will only drip on the outside of the volute 31.
  • the airflow blown from the air outlet 13 is a mixed airflow that has undergone heat exchange and that has not undergone heat exchange.
  • the temperature of the airflow is relatively soft, which gives the user a feeling of warm but not hot, and cool but not cold, and improves the user's comfort experience.
  • the upper airflow inlet 311 is formed on the top surface of the volute 31.
  • the circumferential edge of the upper air inlet 311 is provided with a water retaining rib 314 protruding upward from the top surface of the volute 31.
  • the water retaining rib 314 is annular and surrounds the entire circumferential edge of the upper air inlet 311, which can effectively prevent the condensed water on the top surface of the volute 31 from flowing into the volute 31 through the edge of the upper air inlet 311.
  • the top surface of the volute 31 may be arranged to gradually slope downward along the radially outer side of the upper air inlet 311, so that the condensed water received on it flows downward, and prevents the condensed water from collecting on the top of the volute 31. surface.
  • the volute 31 also has an air outlet 313 opposite to the air outlet 13.
  • the shape of the air outlet 313 may match the shape of the air outlet 13.
  • the circumferential edge of the airflow outlet 313 is provided with a flange 315 extending radially outwards.
  • the flange 315 can prevent the condensed water on the outer surface of the volute 31 from adhering to the circumferential edge of the airflow outlet 313 and blow out along with the airflow.
  • the air conditioner indoor unit 1 is prevented from blowing out condensed water.
  • the air-conditioning indoor unit 1 may include a specially designed cabinet 10, an upward style grill 40, The upper heat exchanger 21, the fan 30 and the lower inlet style grill 50.
  • the descending style grill 50 in FIG. 2 can be replaced with the descending style grill 50 shown in FIG. 6, and it only needs to be modified into a triangle.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

一种空调室内机，包括机壳，机壳具有开设在其顶部的上进风口，上进风口处设有上进风格栅。上进风格栅包括多个沿横向延伸且沿机壳的进深方向间隔排列的上栅条，每个上栅条均包括从上往下地沿进深方向向后倾斜的第一栅板，以使得相邻两个上栅条的第一栅板之间形成供气流通过的朝向机壳上前方的上栅孔。由于上进风格栅朝向机壳的上前方开口，而空调室内机的前方空间充足，不受墙面遮挡，进风量稳定，不会出现回风现象，因此空调室内机的位置可以随意选择，灵活性较高。

Description

空调室内机 技术领域
本发明涉及空调器，特别是涉及一种空调室内机。
背景技术
空调室内机的进风口通常设置在机壳的顶部，进风口处设有进风格栅，气流自上而下地进入机壳内。这样的结构设计至少存在两个缺陷，一是空调室内机的安装位置必须与顶部墙面保持一定的距离，以确保气流顺利地进入机壳内，室内机的安装位置比较受限；二是灰尘容易从进风格栅落入机壳内导致积灰，难以清理。对于第一个缺陷，现有技术中通常的解决办法是将进风口改设在机壳的其他位置，但这会造成空调室内机的整体结构改动较大，增加了设计成本和模具成本。对于第二个缺陷，现有技术中常见的解决办法是将进风格栅设置成可开闭的，仅在空调室内机运行时进风格栅才打开进风口，这无疑会导致空调室内机的结构和控制更加复杂，成本也会相应地增加。
发明内容
本发明的一个目的旨在克服现有技术中的至少一个缺陷，提供一种安装位置灵活且结构简单的空调室内机。
本发明的另一个目的是避免灰尘经上进风格栅落入机壳内。
本发明的一个进一步的目的是降低气流流经上进风格栅的风阻、提高进风顺畅性、增大进风量。
为了实现上述目的，本发明提供一种空调室内机，包括机壳，所述机壳具有开设在其顶部的上进风口，所述上进风口处设有上进风格栅，所述上进风格栅包括：
多个沿横向延伸且沿所述机壳的进深方向间隔排列的上栅条，每个所述上栅条均包括从上往下地沿所述进深方向向后倾斜的第一栅板，以使得相邻两个所述上栅条的第一栅板之间形成供气流通过的朝向所述机壳上前方的上栅孔。
可选地，所述上栅条的处于最前端的轮廓线比相邻地位于该上栅条前侧的一个上栅条的处于最后端的轮廓线更加靠前；或者
所述上栅条的处于最前端的轮廓线与相邻地位于该上栅条前侧的一个 上栅条的处于最后端的轮廓线相平齐。
可选地，所述第一栅板从上往下地沿直线向后延伸，以形成平直的板状。
可选地，所述第一栅板从上往下地沿光滑曲线向后延伸，以形成向上拱起的弯曲板状。
可选地，所述上进风格栅还包括外框架，每个所述上栅条的两端均分别与所述外框架相连；且
所述第一栅板的两个端部边缘与所述外框架之间均通过竖向延伸的端板相连。
可选地，所述上栅条还包括与所述第一栅板的底部边缘相连的第二栅板，所述第二栅板的两端分别与所述外框架相连。
可选地，所述第二栅板为沿水平方向向后延伸的平直板体。
可选地，所述机壳的横截面整体呈直角三角形、或圆心角为90°的扇形；且
所述上进风格栅的形状与所述机壳横截面的形状相同。
可选地，所述机壳还具有开设在其底部的下进风口和开设在其前侧的出风口，且所述空调室内机还包括：
风机，设置于所述机壳内，用于促使气流由上进风口和所述下进风口朝向所述出风口流动；以及
上换热器和下换热器，设置于所述机壳内，且分别位于所述风机的上方和下方，以分别与由所述上进风口和所述下进风口流向所述风机的气流进行热交换。
可选地，所述下进风口处设有下进风格栅，所述下进风格栅包括：
至少两层沿上下方向间隔地叠加设置的格栅板，每层所述格栅板均包括间隔排列的多个下栅条，以在相邻两个所述下栅条之间形成供气流通过的下栅孔；
每层所述格栅板的每个所述下栅孔在水平面内的投影均落入其它层所述格栅板的所述下栅条在水平面内的投影中。
本发明的空调室内机在其上进风口处设有上进风格栅，上进风格栅包括多个沿横向延伸且沿机壳进深方向间隔排列的上栅条，上栅条特别设计成具有从上往下地向后倾斜的第一栅板，从而在相邻两个上栅条的第一栅板之间形成朝向机壳上前方的上栅孔，以供气流通过。由于上进风格栅朝向机壳的 上前方开口，而空调室内机的前方比较开阔，空间充足，不会受到顶部墙面、左右墙面的遮挡，进风量稳定，不会出现回风现象，因此空调室内机的位置可以随意选择，灵活性较高。本发明在传统空调室内机的结构基础上不需要改变上进风口位置的前提下，仅通过对上进风格栅的结构进行特别地设计就可以将机壳的进风方向由自上而下地进风改为从上前方进风，结构非常简单，几乎不需要增加成本。
进一步地，上栅条的处于最前端的轮廓线比相邻地位于其前侧的上栅条最后端的轮廓线更加靠前或者二者相平齐，由此，整个上进风格栅在水平面内的投影是连续的，没有间断的，因此，自上而下的灰尘落在上栅条的上表面，从而完全被阻挡在机壳的外部。
进一步地，第一栅板从上往下地沿直线或光滑曲线向后延伸，从而形成平直板状或向上拱起的弯曲板状，一方面，可以使得上栅孔的壁面更加顺滑，减小了气流流经上栅孔的风阻，降低了噪音；另一方面，还扩大了上栅孔的孔径大小，增大了上进风格栅的进风空间，使得进风更加通畅，进风量更大。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的空调室内机的示意性结构图；
图2是根据本发明一个实施例的空调室内机的示意性结构分解图；
图3是根据本发明一个实施例的上进风格栅的示意性结构图；
图4是根据本发明一个实施例的上进风格栅沿竖向剖切面截取的示意性剖视图；
图5是根据本发明另一个实施例的空调室内机的示意性结构图；
图6是根据本发明一个实施例的下进风格栅的示意性结构图；
图7是根据本发明一个实施例的下进风格栅沿竖向剖切面截取的的示意性剖视图；
图8是根据本发明另一个实施例的空调室内机的示意性结构分解图。
具体实施方式
本发明提供一种空调室内机，图1是根据本发明一个实施例的空调室内机的示意性结构图，图2是根据本发明一个实施例的空调室内机的示意性结构分解图。参见图1和图2，本发明的空调室内机1包括机壳10，机壳10具有开设在其顶部的上进风口11。具体地，上进风口11可开设在机壳10的顶面上。
特别地，上进风口11处设有上进风格栅40。图3是根据本发明一个实施例的上进风格栅的示意性结构图，图4是根据本发明一个实施例的上进风格栅沿竖向剖切面截取的示意性剖视图(图3所示的上进风格栅为三角形，图4所示的上进风格栅为方形)。参见图3和图4，上进风格栅40包括多个沿横向延伸且沿机壳10的进深方向(即前后方向)间隔排列的上栅条41，每个上栅条41均包括从上往下地沿进深方向向后倾斜的第一栅板411，以使得相邻两个上栅条41的第一栅板411之间形成供气流通过的朝向机壳10上前方的上栅孔42，以供气流通过。由于上进风格栅40朝向机壳10的上前方开口，而空调室内机1的前方比较开阔，空间充足，不会受到顶部墙面、左右墙面或其他物体的遮挡，进风量稳定，不会出现回风现象，因此空调室内机1的位置可以随意选择，灵活性较高。本发明在传统空调室内机的结构基础上不需要改变上进风口11位置的前提下，仅通过对上进风格栅40的结构进行特别地设计就可以将机壳10的进风方向由自上而下地进风改为从上前方进风，不但取得了良好的进风效果，而且结构非常简单，几乎不需要增加成本。
具体地，第一栅板411可以为沿机壳10横向延伸的细长条状板体，相邻两个第一栅板411之间形成的上栅孔42为沿机壳10横向延伸的细长条孔。
在一些实施例中，上栅条41的处于最前端的轮廓线41a比相邻地位于该上栅条41前侧的一个上栅条41的处于最后端的轮廓线41b更加靠前。在另一些实施例中，上栅条41的处于最前端的轮廓线41a与相邻地位于该上栅条41前侧的一个上栅条41的处于最后端的轮廓线41b相平齐。也就是说，相邻两个上栅条41在水平面内的投影具有重叠部分或恰好相接，从而使整个上进风格栅40在水平面内的投影是连续的，没有间断的，因此，自上而下的灰尘会落在上栅条41的上表面，从而完全被阻挡在机壳10的外部。可见，本发明的上进风格栅40不但保留了传统的进风功能、具有良好的进风 效果，而且还可以起到很好的遮灰挡尘的作用。
在一些实施例中，第一栅板411从上往下地沿直线向后延伸，以形成平直的板状。在另一些实施例中，第一栅板411从上往下地沿光滑曲线向后延伸，以形成向上拱起的弯曲板状。这两种形状的第一栅板411都可以使得上栅孔42的壁面更加顺滑，减小了气流流经上栅孔42的风阻，降低了噪音；同时，还扩大了上栅孔42的孔径大小，增大了上进风格栅40的进风空间，使得进风更加通畅，进风量更大。
在一些实施例中，上进风格栅40还包括外框架43，每个上栅条41的两端均分别与外框架43相连。第一栅板411的两个端部边缘与外框架43之间均通过竖向延伸的端板44相连，加固了第一栅板411与外框架43之间的连接，提高了上进风格栅40的结构强度。具体地，端板44可以沿竖向垂直延伸，也可以沿竖向倾斜延伸。端板44与外框架43相连的底部边缘在机壳10进深方向上的宽度可以与第一栅板411在水平面内的投影宽度一致。端板44在竖直方向上的高度与第一栅板411在该方向上的高度一致。由于第一栅板41倾斜设置，因此，端板44大致为三角形板体。
进一步地，上栅条41还包括与第一栅板411的底部边缘相连的第二栅板412，第二栅板412的两端分别与外框架43相连，可以避免长条形的第一栅板411在长时间使用后产生变形，提高了上进风格栅40的结构强度和结构稳定性。
更进一步地，第二栅板412可以为沿水平方向向后延伸的平直板体。平直板体的两端与外框架43之间的接触面积较大，因此，连接强度和稳定性更高。
当上栅条41仅包含第一栅板411时，第一栅板411前后端的轮廓线分别形成上栅条41处于最前端的轮廓线和处于最后端的轮廓线。当上栅条41包括第一栅板411和第二栅板412时，第一栅板411前端的轮廓线形成上栅条41处于最前端的轮廓线，第二栅板412后端的轮廓线形成上栅条41处于最后端的轮廓线。
在一些实施例中，机壳10的横截面整体呈直角三角形、或圆心角为90°的扇形。本领域技术人员应理解，这里的“整体”意指机壳10的横截面可以呈严格的直角三角形或圆心角为90°的扇形，也可以大致呈直角三角形或圆心角为90°的扇形，例如两个边相交的位置处可以具有倒角等类似结构。 进一步地，上进风格栅40的形状与机壳10横截面的形状相同，以确保机壳10具有尽可能大的上进风口面积。在这些实施例中，上进风格栅40的多个上栅条41的长度不尽相同。
进一步地，机壳10可悬挂地设置在其所处空间内的壁面上。机壳10的两个横向侧面上均设有挂设结构14，该两个横向侧面的横截面分别为上述直角三角形的两个直角边或上述扇形的两个半径，以便于通过两个该横向侧面上的挂设结构14将机壳10挂设在两面相互垂直的壁面所形成的墙角处，由此既能够确保空调室内机1安装的稳固性，又可使得空调室内机1所处的空间为用户不常活动的角落空间，避免了空调室内机对用户的正常室内活动产生影响。
图5是根据本发明另一个实施例的空调室内机的示意性结构图。在另一些实施例中，机壳10的横截面可整体呈方形。此时，挂设结构可开设在机壳10的与其前侧面10a相对设置的后侧面。
在一些替代性实施例中，机壳10的横截面可整体呈圆形、五边形或其他合适的形状，上进风格栅40的形状与机壳10横截面的形状相同。
在一些实施例中，机壳10用于悬挂地设置在其所处空间内的壁面上，不占用室内的地面空间，可以将其下方靠近地面的空间让出来，供用户储存物品等，以便更好地利用室内空间。进一步地，机壳10还具有开设在其底部的下进风口(图中未示出)和开设在其前侧的出风口13。本发明的空调室内机1具有上下两个进风口，扩大了进风量，从而扩大了空调室内机1的出风量。同时，本发明将出风口13设置在机壳10前侧，可以扩大空调室内机1的送风范围。
进一步地，空调室内机1还包括风机30、上换热器21和下换热器22。风机30设置于机壳10内，用于促使气流由上进风口11和下进风口朝向出风口13流动。具体地，风机30为双吸式离心风机，且具有蜗壳31和设置于蜗壳31内的双吸式叶轮32。上换热器21和下换热器22均设置于机壳10内，且分别位于风机30的上方和下方，以分别与由上进风口11和下进风口流向风机30的气流进行热交换。也就是说，空调室内机1包括两个换热器，分别用于与经两个进风口进入机壳10内的气流进行热交换，并且两个换热器的位置与出风口13距离较远，用户不容易触及到，可以很好地解决现有壁挂式的挂墙空调仅设置一个换热器、且换热器邻近出风口导致不符合安规 和容易吹出冷凝水的问题，提高了用户的使用安全性，改善了用户的使用体验。具体地，由于两个进风口分别位于机壳10的顶部和底部，属于用户不容易触及到的位置，即使换热器离进风口较近，也不会产生任何安全隐患。而出风口13处于机壳10的前侧，用户比较容易触及到，换热器邻近出风口设置，容易产生烫伤、触电等安全隐患，并且，换热器上产生的冷凝水可能会随气流吹出，影响用户的使用体验。
在一些实施例中，机壳10的长度方向沿竖直方向延伸。也即是，空调室内机1的外形更接近于立式空调室内机，有利于空调室内机1的进出风和安装。进一步地，出风口13为开设在机壳10前侧面上且沿竖向延伸的条形出风口，由此，扩大了空调室内机1在竖直方向上的出风范围。出风口13处可设置沿横向摆动的导风机构，以扩大空调室内机1在横向上的出风范围。
在一些实施例中，机壳10的除其前侧面10a之外的其他至少一个侧面具有用于将机壳10悬挂地设置在壁面上的挂设结构14。具体地，挂设结构14可以为挂孔，可通过将固定在壁面上的挂钩插入挂孔内将机壳10悬挂地设置在壁面上。
在一些实施例中，上换热器21可大致水平地设置在风机30的上方。下换热器22可大致水平地设置在风机30的下方。由此，可尽可能地缩短空调室内机1在竖直方向上的高度，减小其体积。
在一些实施例中，下进风口处设有下进风格栅50。下进风格栅50的形状可与机壳10的形状相匹配。下进风格栅50可以与上进风格栅40对称设置，也可以为普通的进风栅，还可以为其他特别设计的进风栅。
图6是根据本发明一个实施例的下进风格栅的示意性结构图，图7是根据本发明一个实施例的下进风格栅沿竖向剖切面截取的的示意性剖视图。参见图6和图7，下进风格栅50包括至少两层沿上下方向间隔地叠加设置的格栅板51。每层格栅板51均包括间隔排列的多个下栅条511，以在相邻两个下栅条511之间形成供气流通过的下栅孔512。每个下栅条511均呈细长条状，相邻两个下栅条511之间的下栅孔512也呈长条形。由此形成的下栅孔的数量较多，且相对密集，因此不会影响下进风口的进风，风阻较小。
进一步地，每层格栅板51的每个下栅孔512在水平面内的投影均落入其它层格栅板51的下栅条511在水平面内的投影中。也就是说，在竖直方向上，每层格栅板51的每个下栅孔512在竖直方向上均能够被其他层格栅 板41的下栅条511完全遮挡。因此，下换热器22上产生的冷凝水可在自身重力作用下竖直向下落在下栅条511上，而不会通过任一下栅孔512滴落在机壳10外部，提高了用户的使用体验。可见，本发明的下进风格栅50在不影响下进风口进风量的前提下同时集成了传统的进风格栅和接水盘的双重功能，而且结构非常简单。
在一些实施例中，每层格栅板51的每个下栅条511均具有向上开口的凹槽513，以用于收集下换热器22产生的冷凝水。开口朝上的凹槽513可以收集量比较多的冷凝水，避免冷凝水从下栅条511上滴落至机壳10外部。具体地，凹槽513可以沿下栅条511的长度方向延伸，且凹槽513的竖截面可以呈弧形、V形、U形或其他合适的形状。
进一步地，除最下层之外的其他任一层格栅板51均直接或间接地与最下层格栅板51流体连通，以允许除最下层之外的其他任一层格栅板51上收集的冷凝水汇流至最下层格栅板51。由此，便于通过最下层格栅板51将所有格栅板51收集的冷凝水排放至空调室内机1的外部。例如，可通过与最下层格栅板51连通的排水管将整个下进风格栅50收集的冷凝水排放至空调室内机1的外部。
在一些实施例中，每层格栅板51还包括外栅框514，外栅框514的内侧边缘形成有用于收集冷凝水的汇流槽515。每层格栅板51的每个下栅条511的两端均与该层格栅板51的外栅框514相连，每层格栅板51的每个下栅条511的凹槽513均与该层格栅板51的汇流槽515连通，以便于每个下栅条511收集的冷凝水通过凹槽513流到汇流槽515内汇集。
在一些实施例中，除最下层之外的其他任一层格栅板51的汇流槽515均通过导流孔516直接与最下层格栅板51的汇流槽515连通，以便于除最下层之外的其他任一层格栅板51收集的冷凝水直接流向最下层格栅板51的汇流槽515。在另一些实施例中，除最下层之外的其他任一层格栅板51的汇流槽515均通过导流孔516直接与相邻地位于该层格栅板下方的格栅板51的汇流槽515连通，以便于各层格栅板51收集的冷凝水逐层地往下流，直至流到最下层格栅板51的汇流槽515。
具体地，导流孔516可开设在格栅板51的至少一个端部，并与其汇流槽515连通。在图6所示实施例中，下进风格栅50包括上下两层格栅板51，上层格栅板51的其中一个端部设有竖直向下凸出延伸至下层格栅板51的导 流柱517，导流柱517的内部中空，从而形成导流孔516。导流柱517的底部可延伸至下层格栅板51的汇流槽515中，且导流柱517的底部开设有缺口，以使得其内形成的导流孔516与下层格栅板51的汇流槽515连通。可以理解的是，导流柱517还用于固定和支撑上层格栅板51。在另一些实施例中，也可以额外设置其他的结构来固定和支撑上层格栅板51。在一些替代性实施例中，也可以在上层格栅板51的另一个端部或其他边缘位置设置导流柱和导流孔。
在一些实施例中，凹槽513为沿下栅条511的长度方向贯穿下栅条511的贯通槽，也即是，凹槽513为两端敞开的通槽，以便于与汇流槽515连通。并且，下栅条511在竖直方向上的高度由其中间向其两端逐渐降低，例如，下栅条511可大致呈中间高、两端低的拱形，有利于下栅条511收集的冷凝水沿其凹槽513流动至汇流槽515内，避免了冷凝水长时间滞留在下栅条511上造成进气气流含水量较大导致下换热器22容易结霜的问题。
在一些实施例中，每层格栅板51均与水平面呈预设角度地倾斜设置，有利于每层格栅板51收集的冷凝水在其自身重力作用下流动至格栅板51的一侧，从而汇集在一起，便于排出，避免了冷凝水长时间滞留在格栅板51上造成进气气流含水量较大导致下换热器22容易结霜的问题。在这些实施例中，导流孔516可设置在格栅板51的高度较低的一端，以便于冷凝水的排出。
在一些实施例中，下进风格栅50在水平面内的投影与机壳10的横截面形状相一致。例如，图6所示的下进风格栅50在水平面内的投影为方形，适用于方形机壳。可以理解的是，当机壳10的横截面整体呈三角形时，下进风格栅50在水平面内的投影也为三角形。
本领域技术人员应理解，在一些替代性实施例中，下进风格栅50也可以为仅具有格栅功能的普通进风格栅。此时，可以在下换热器22的下方设置蛇形、层叠型或其他合适的接水盘60(参见图8)，只要不影响进风即可。
为了避免上换热器21产生的冷凝水落入风机30内部，在一些实施例中，本发明还对上换热器21和风机蜗壳31的结构进行了特别的设计。
图8是根据本发明另一个实施例的空调室内机的示意性结构分解图。参见图8，上换热器21具有上下贯通的通孔211，蜗壳31的顶部开设有上气流入口311，上气流入口311在水平面内的投影落入通孔211在水平面内的 投影中。也就是说，上换热器21在竖直方向上不存在与上气流入口311正对的换热结构，因此，上换热器21产生的冷凝水只会滴落在蜗壳31的外部，不会经上气流入口311滴落到蜗壳31内，不但可以防止电机等装置接触冷凝水产生安全隐患，而且还可防止蜗壳31内的叶轮32粘附冷凝水，从而避免了空调室内机1吹出冷凝水，提高了用户的使用体验。
同时，由于经上进风口11进入的气流一部分经过上换热器21的换热结构进行热交换后流向风机30，另一部分气流经过上换热器21的通孔211不经过换热直接流向风机30，两部分气流在风机30内混合后从出风口13送出。因此，从出风口13吹出的气流为经过换热和没有经过换热的混合气流，气流温度相对柔和，给用户暖而不热、凉而不冷的感觉，提高了用户的舒适性体验。
在一些实施例中，上气流入口311形成在蜗壳31的顶表面。上气流入口311的周向边缘设有由蜗壳31的顶表面向上凸出延伸的挡水筋314。挡水筋314为环形，其围设在上气流入口311的整个周向边缘，可有效地阻止蜗壳31顶表面上的冷凝水经上气流入口311的边缘流入蜗壳31内部。
在一些实施例中，蜗壳31的顶表面可设置成沿上气流入口311的径向外侧逐渐向下倾斜，以便于其上承接的冷凝水往下流，避免冷凝水聚集在蜗壳31的顶表面。
进一步地，蜗壳31还具有与出风口13相对的气流出口313。气流出口313的形状可与出风口13的形状相匹配。气流出口313的周向边缘设有沿其径向向外延伸的翻边315，可通过翻边315阻止蜗壳31外表面的冷凝水附着在气流出口313的周向边缘而随气流吹出，进一步避免了空调室内机1吹出冷凝水。
本发明的上述实施例中，为了对机壳10、上进风格栅40、上换热器21、风机30、下进风格栅50中的某一种结构进行具体描述所使用的附图中的其他结构可能为普通结构，本领域技术人员应理解，在一些实施例中，空调室内机1可包括上述多个或所有实施例中经过特别设计后的机壳10、上进风格栅40、上换热器21、风机30和下进风格栅50。例如，图2中的下进风格栅50可以用图6所示的下进风格栅50替换，只需将其修改成三角形即可。
本领域技术人员应理解，本发明实施例中所称的“上”、“下”、“顶”、“底”、“横”、“前”、“后”等用于表示方位或位置关系的用语是以空 调室内机1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部件必须具有特定的方位，因此不能理解为对本发明的限制。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种空调室内机，包括机壳，所述机壳具有开设在其顶部的上进风口，所述上进风口处设有上进风格栅，其特征在于，所述上进风格栅包括：
    多个沿横向延伸且沿所述机壳的进深方向间隔排列的上栅条，每个所述上栅条均包括从上往下地沿所述进深方向向后倾斜的第一栅板，以使得相邻两个所述上栅条的第一栅板之间形成供气流通过的朝向所述机壳上前方的上栅孔。
  2. 根据权利要求1所述的空调室内机，其特征在于，
    所述上栅条的处于最前端的轮廓线比相邻地位于该上栅条前侧的一个上栅条的处于最后端的轮廓线更加靠前；或者
    所述上栅条的处于最前端的轮廓线与相邻地位于该上栅条前侧的一个上栅条的处于最后端的轮廓线相平齐。
  3. 根据权利要求1所述的空调室内机，其特征在于，
    所述第一栅板从上往下地沿直线向后延伸，以形成平直的板状。
  4. 根据权利要求1所述的空调室内机，其特征在于，
    所述第一栅板从上往下地沿光滑曲线向后延伸，以形成向上拱起的弯曲板状。
  5. 根据权利要求1所述的空调室内机，其特征在于，
    所述上进风格栅还包括外框架，每个所述上栅条的两端均分别与所述外框架相连；且
    所述第一栅板的两个端部边缘与所述外框架之间均通过竖向延伸的端板相连。
  6. 根据权利要求5所述的空调室内机，其特征在于，
    所述上栅条还包括与所述第一栅板的底部边缘相连的第二栅板，所述第二栅板的两端分别与所述外框架相连。
  7. 根据权利要求6所述的空调室内机，其特征在于，
    所述第二栅板为沿水平方向向后延伸的平直板体。
  8. 根据权利要求1所述的空调室内机，其特征在于，
    所述机壳的横截面整体呈直角三角形、或圆心角为90°的扇形；且
    所述上进风格栅的形状与所述机壳横截面的形状相同。
  9. 根据权利要求1所述的空调室内机，其特征在于，所述机壳还具有开设在其底部的下进风口和开设在其前侧的出风口，且所述空调室内机还包括：
    风机，设置于所述机壳内，用于促使气流由上进风口和所述下进风口朝向所述出风口流动；以及
    上换热器和下换热器，设置于所述机壳内，且分别位于所述风机的上方和下方，以分别与由所述上进风口和所述下进风口流向所述风机的气流进行热交换。
  10. 根据权利要求9所述的空调室内机，其特征在于，所述下进风口处设有下进风格栅，所述下进风格栅包括：
    至少两层沿上下方向间隔地叠加设置的格栅板，每层所述格栅板均包括间隔排列的多个下栅条，以在相邻两个所述下栅条之间形成供气流通过的下栅孔；
    每层所述格栅板的每个所述下栅孔在水平面内的投影均落入其它层所述格栅板的所述下栅条在水平面内的投影中。
PCT/CN2021/077899 2020-03-26 2021-02-25 空调室内机 WO2021190237A1 (zh)

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