Heat exchange device and air conditioner

Abstract

The application provides a heat exchange device and an air conditioner. The heat exchange device comprises a heat exchanger and a water collecting mechanism. The water collecting mechanism is arranged at the bottom of the heat exchanger. The water collecting mechanism comprises at least two grid layers distributed along the height direction of the heat exchanger. The grid layer comprises a plurality of water collecting grids. The plurality of water collecting grids are spaced apart along a first direction to form an air inlet channel. The water collecting grids of any two adjacent grid layers are staggered. Through the arrangement, the water collecting mechanism can not only collect water through the water collecting grids, but also take in air through the air inlet channel. The air inlet function and the water collecting function are combined, an additional water collecting tray is saved, the space utilization is improved, the heat exchange device and the air conditioner are reduced in size, and the design is compact and small.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a heat exchange device and an air conditioner. Background Technology

[0002] Air conditioners typically have heat exchangers such as evaporators and condensers. During use, the evaporator produces condensate. In related technologies, a drip tray is installed inside the air conditioner casing to collect and collect the condensate produced by the evaporator.

[0003] In order to collect condensate water, the drip tray often occupies a large space inside the air conditioner casing. This not only encroaches on the installation space of other components, but also restricts the internal structural layout of the air conditioner, making it difficult to further reduce the size of the whole unit and meet the miniaturization design requirements of air conditioners. Summary of the Invention

[0004] In view of this, this application provides a heat exchange device and an air conditioner that can solve the problem that traditional water trays occupy too much space and are not conducive to the miniaturization design of air conditioners.

[0005] Specifically, the following technical solutions are included: In a first aspect, embodiments of this application provide a heat exchange device, which includes a heat exchanger and a water receiving mechanism, wherein the water receiving mechanism is disposed at the bottom of the heat exchanger; The water receiving mechanism includes at least two grid layers distributed along the height direction of the heat exchanger. Each grid layer includes multiple water receiving grids, which are spaced apart along a first direction to form an air inlet channel. The water receiving grids of any two adjacent grid layers are staggered.

[0006] In the technical solution of this application, the water receiving mechanism can both intake air through the air intake channel and collect water through the water receiving grille, realizing the two functions of air intake and water collection in one, eliminating the need for an additional water receiving tray, improving space utilization, and helping to reduce the size of heat exchange devices and air conditioners, and achieve miniaturization and compact design.

[0007] In one possible implementation, the water-receiving grid has a water-receiving trough on the side near the heat exchanger, the water-receiving trough being configured to collect condensate dripping from the heat exchanger.

[0008] In the technical solution of this application, by setting a water collection trough on the water collection grille, the water collection grille can not only separate and form an air intake channel, but also use its own water collection trough to collect the condensate dripping from the heat exchanger during operation, preventing the condensate from dripping from the air intake into the indoor environment, improving the user experience and eliminating the need for an additional condensate collection device.

[0009] In one possible implementation, the cross-section of the water-receiving grid is a U-shaped or V-shaped structure with a low center and high sides to form the water-receiving trough.

[0010] In the technical solution of this application, the structure of the water receiving grid, which is low in the middle and high on both sides, is used to more fully receive the condensate dripping from the heat exchanger and collect the condensate at the bottom of the water receiving tank, preventing the condensate from dripping into the indoor environment.

[0011] In one possible implementation, the width of the water-receiving grille in the first direction is greater than or equal to the width of the air inlet channel in the first direction, so that in any two adjacent grille layers, the water-receiving grille of the lower grille layer can cover the air inlet channel of the upper grille layer.

[0012] In the technical solution of this application, since the water-receiving grid of the lower grid layer can cover the air inlet channel of the upper grid layer, the condensate dripping from the upper grid layer will be caught by the water-receiving grid of the lower grid layer, ensuring that the condensate dripping from the heat exchanger is fully collected and preventing the condensate from dripping onto the outside of the air conditioner outdoor unit.

[0013] In one possible implementation, the total area of ​​the air inlet channels of the multiple layers of the grille is S1, and the orthographic projection area of ​​the grille on the projection plane is S2, satisfying S1≥S2, wherein the projection plane is perpendicular to the height direction of the heat exchanger.

[0014] In the technical solution of this application, the total area of ​​the air inlet channel with multiple layers of grilles is greater than or equal to the area of ​​the grille layer, ensuring that the water receiving mechanism has sufficient effective air inlet area and that the indoor unit has sufficient air volume.

[0015] In one possible implementation, the heat exchange device further includes a water collecting element disposed on one side of the water receiving mechanism in the second direction. The water collecting element extends along the first direction and is provided with a water collecting cavity. The water collecting cavity has a water inlet, and the water receiving tank communicates with the water inlet so that liquid in the water receiving tank enters the water collecting cavity through the water inlet. The first direction and the second direction form an angle.

[0016] In the technical solution of this application, by setting up water collection components, storage space is provided for the condensate collected by each water receiving grid, which facilitates the centralized treatment and discharge of condensate.

[0017] In one possible implementation, the water-receiving grid gradually moves away from the heat exchanger from one end away from the water-collecting element to the end closer to the water-collecting element.

[0018] In the technical solution of this application, the condensate dripping from the heat exchanger is collected by the water collection grid and automatically flows from the higher end to the lower end along the inclined water collection grid under the action of gravity, and finally smoothly enters the water collection device. In this way, the automatic drainage of condensate is realized, ensuring that even if the amount of condensate is very small, it can be effectively guided into the water collection device, preventing condensate from accumulating in the water collection grid and dripping into the indoor environment under the disturbance of the air intake airflow.

[0019] In one possible implementation, the angle between the water receiving grille and the air inlet surface of the heat exchanger is 1° to 45°.

[0020] In the technical solution of this application, the minimum angle of 1° ensures that under the action of gravity, the condensate can overcome the surface tension and flow smoothly to the water collection device, thus achieving reliable drainage. Limiting the maximum angle between the water collection grille and the air inlet surface of the heat exchanger to 45° is to ensure drainage efficiency while avoiding problems such as excessive height of the water collection mechanism, reduced safety, and reduced aesthetics caused by excessive tilt angle of the water collection grille.

[0021] In one possible implementation, the heat exchange device further includes a water pumping device, the inlet end of which is connected to the water collection chamber.

[0022] In the technical solution of this application, by setting up a water pumping device, the condensate in the water collection chamber can be pumped out and discharged, preventing the condensate in the water collection chamber from being stored for a long time and generating bacteria and other pollutants. This realizes the automatic drainage of the heat exchange device, eliminates the need to manually empty the condensate, and improves the automation level of the heat exchange device.

[0023] In one possible implementation, the water collecting element has a bottom wall, at least a portion of which extends at an angle to the projection plane, wherein the projection plane is perpendicular to the height direction of the heat exchanger.

[0024] In the technical solution of this application, by setting at least a portion of the bottom wall to be inclined to the projection plane, the condensate in the water collection chamber can be guided to converge at the low point, which facilitates the centralized treatment of the condensate.

[0025] In one possible implementation, the inlet end of the pumping device is located at one end of the water collecting member in the first direction; In the first direction, the further the bottom wall is from the pumping device, the closer it is to the heat exchanger.

[0026] In the technical solution of this application, the condensate entering the water collection chamber from the inlet will automatically flow from the higher end to the lower end along the inclined bottom wall under the action of gravity, and finally flow to the lowest end where the liquid inlet of the pumping device is located. In this way, the automatic flow of condensate in the water collection chamber is realized, which is conducive to the pumping device to fully absorb and discharge the condensate in the water collection chamber, improve drainage efficiency, and prevent bacteria or odor from being generated in the water collection chamber due to the retention of condensate.

[0027] In one possible implementation, the angle between the extended surface of the bottom wall and the projection plane is 1° to 45°.

[0028] In the technical solution of this application, the minimum angle of 1° ensures that under the action of gravity, the condensate can be smoothly collected along the bottom wall to the liquid inlet of the pumping device so as to extract the condensate; limiting the maximum angle between the bottom wall and the projection plane to 45° is to ensure drainage efficiency while avoiding the water collection component occupying too much space in the height direction of the housing 1, affecting aesthetics and safety.

[0029] Secondly, embodiments of this application provide an air conditioner, which includes the heat exchange device provided in any embodiment of the first aspect. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is an exploded view of the heat exchange device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the heat exchange device provided in the embodiments of this application; Figure 3 This is a schematic diagram of the water receiving mechanism provided in the embodiments of this application; Figure 4 A partial cross-sectional view of the water receiving mechanism provided in the embodiments of this application; Figure 5 A side view of the water receiving mechanism provided in an embodiment of this application; Figure 6 This is a schematic diagram of the assembly of the water collection component provided in an embodiment of this application; Figure 7 A side view of the water collection component provided in an embodiment of this application; Figure 8 This is an exploded view of the pumping device provided in the embodiments of this application; Figure 9This is a partial structural diagram of the pumping device provided in the embodiments of this application; Figure 10 An exploded view of an air conditioner provided in an embodiment of this application; Figure 11 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application.

[0032] The reference numerals in the figure are respectively: 1-Shell; 11-Air inlet; 12-Air outlet; 13-Air cavity; 2-Heat exchanger; 3- Fan; 4-Water receiving mechanism; 41-Grate layer; 411-Water receiving grille; 4111-Water receiving trough; 412-Air inlet channel; 5-Base plate; 51-Water collecting component; 511-Water collecting cavity; 512-Water inlet; 513-Bottom wall; 6- Pumping device; 61- Pump motor; 62- Pump impeller; 63- Pump casing; 631- Inlet; 632- Outlet; 64- Check valve; 641- Rotating plate; 642- Baffle.

[0033] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] The directional terms used in the embodiments of this application, such as "up," "down," and "side," are generally based on the relative relationships shown in the figures. These directional terms are used merely to more clearly describe the relationships between structures, not to describe absolute directions. When the product is placed in different orientations, the orientation may change; for example, "up" and "down" may be interchanged.

[0036] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0037] Currently, in related technologies, a drip tray is installed inside the casing of the air conditioner to collect and hold the condensate produced by the evaporator.

[0038] In order to collect condensate water, the drip tray often occupies a large space inside the air conditioner casing. This not only encroaches on the installation space of other components, but also restricts the internal structural layout of the air conditioner, making it difficult to further reduce the size of the whole unit and meet the miniaturization design requirements of air conditioners.

[0039] To address the aforementioned technical problems, this application provides a heat exchange device and an air conditioner that can solve the problems of traditional water trays occupying too much space and hindering the miniaturization design of air conditioners.

[0040] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0041] The heat exchange device provided in this application embodiment is applied to air conditioners, especially ceiling-mounted air conditioners, such as ducted air conditioners. The indoor unit of the air conditioner can be fixed to the ceiling using a suspended installation method, realizing the integration of the indoor unit with the indoor ceiling and improving aesthetics.

[0042] like Figure 1 and Figure 2 As shown, the heat exchange device provided in this embodiment includes a heat exchanger 2 and a water receiving mechanism 4, with the water receiving mechanism 4 disposed at the bottom of the heat exchanger 2; as Figure 3 As shown, the water receiving mechanism 4 includes at least two grid layers 41 distributed along the height direction of the heat exchanger 2. The grid layer 41 includes multiple water receiving grids 411. The multiple water receiving grids 411 are distributed at intervals along the first direction Y to form an air inlet channel 412. The water receiving grids 411 of any two adjacent grid layers 41 are staggered.

[0043] like Figure 10 and Figure 11 As shown, the indoor unit of the air conditioner includes a housing 1 and a fan 3. The bottom of the housing 1 is provided with an air inlet 11, and the side of the housing 1 is provided with at least two air outlets 12. The interior of the housing 1 is provided with an air cavity 13. The air inlet 11 and the air outlets 12 are both connected to the air cavity 13. The heat exchanger 2 and the fan 3 are both located in the air cavity 13. The fan 3 is used to drive the gas from the air inlet 11 into the air cavity 13 and from the air outlets 12 out of the air cavity 13.

[0044] Optionally, the heat exchanger 2 is installed in the air cavity 13 by means of bolt connection, snap connection, pin connection, etc.

[0045] The bottom and top of the housing 1 are arranged opposite each other along the height direction of the housing 1, and the side of the housing 1 is located between the top and bottom of the housing 1 and surrounds the top and bottom of the housing 1.

[0046] For example, the air inlet 11 and the air outlet 12 are through holes opened on the housing 1. By setting the air inlet 11 at the bottom of the housing 1, the indoor unit of the air conditioner can draw air from the indoor environment into the air cavity 13 through the air inlet 11 at the bottom. After heat exchange by the heat exchanger 2 and drive by the fan 3, the air in the air cavity 13 is discharged into the indoor environment through the air outlet 12.

[0047] For example, the impeller shaft of the fan 3 extends along the height direction of the housing 1 to "throw" the air in the air chamber 13 outwards, so that it is discharged from the air outlet 12 on the side of the housing 1 into the indoor environment. Optionally, the air outlet direction can be perpendicular to the height direction of the housing 1 to discharge the air in the air chamber 13 horizontally; or, the air outlet direction can be inclined to the height direction of the housing 1 to discharge the air in the air chamber 13 obliquely downwards or obliquely upwards.

[0048] The number of air outlets 12 can be two, three, four or more, and the multiple air outlets 12 can be evenly or unevenly distributed on the side of the housing 1. The cross-sectional shape of the housing 1 can be circular, elliptical, polygonal or other shapes. It can be understood that the cross-section of the housing 1 is the cross section obtained by cutting the housing 1 with a plane perpendicular to the height direction of the housing 1.

[0049] Optionally, the water receiving mechanism 4 is fixed to the bottom of the housing 1 by means of bolt connection, snap connection, welding, etc. This application does not make specific limitations on this.

[0050] The number of grid layers 41 is two or more, for example Figure 3 As shown, the water receiving mechanism 4 includes two grid layers 41, forming a double-layer grid structure.

[0051] The water receiving grille 411 extends in a curved shape or in a straight shape. In each grille layer 41, multiple water receiving grilles 411 are distributed at intervals along the first direction Y. The gap between adjacent water receiving grilles 411 forms an air inlet channel 412.

[0052] In any two adjacent grid layers 41, the water-receiving grid 411 in the lower grid layer 41 is positioned between two adjacent water-receiving grids 411 in the upper grid layer 41. That is, in the orthographic projection of the water-receiving mechanism 4, the orthographic projections of the water-receiving grids 411 in the upper and lower adjacent grid layers 41 are staggered, thus forming a staggered grid structure. It can be understood that the orthographic projection of the water-receiving mechanism 4 is its projection onto a plane perpendicular to the height of the heat exchanger 2.

[0053] The air inlet channels 412 of multiple grid layers 41 are staggered and interconnected, which can turbulent the gas entering the air cavity 13 through the air inlet channels 412, making the gas entering the air cavity 13 more uniform. This makes the gas flow more stable and smooth when flowing through the heat exchanger 2 and the fan 3, reducing noise and vibration, and preventing uneven gas temperature, which is beneficial to improving heat exchange efficiency.

[0054] Meanwhile, the water receiving grid 411 is located below the heat exchanger 2 and can collect the condensate dripping from the heat exchanger 2. For example, the water receiving grid 411 is constructed with a flow guiding structure, which is a raised guide rib, groove, slope, pipe and other structure, so as to more fully collect the condensate.

[0055] The heat exchange device provided in this application embodiment has a water receiving mechanism 4 that can both intake air through the air inlet channel 412 and collect water through the water receiving grille 411, thus combining the functions of air intake and water collection. This eliminates the need for an additional water receiving tray, improves space utilization, and helps to reduce the size of the heat exchange device and air conditioner, achieving a miniaturized and compact design.

[0056] In some embodiments, the water receiving grille 411 has a water receiving trough 4111 on the side near the heat exchanger 2, the water receiving trough 4111 being configured to receive condensate dripping from the heat exchanger 2.

[0057] Among the multiple water receiving grids 411, at least some of the water receiving grids 411 have water receiving grooves 4111. For example, only some of the water receiving grids 411 are provided with water receiving grooves 4111, or all the water receiving grids 411 are provided with water receiving grooves 4111.

[0058] By setting a water collection trough 4111 on the water collection grille 411, the water collection grille 411 can not only separate and form the air intake channel 412, but also use its own water collection trough 4111 to collect the condensate dripping from the heat exchanger 2 during operation, preventing the condensate from dripping from the air inlet 11 into the indoor environment, improving the user experience and eliminating the need for an additional condensate collection device.

[0059] In some embodiments, the cross-section of the water-receiving grille 411 is a U-shaped or V-shaped structure with a lower middle and higher sides to form a water-receiving trough 4111. It can be understood that the cross-section of the water-receiving grille 411 is the cross-section obtained by cutting the water-receiving grille 411 with a plane perpendicular to the extension direction of the water-receiving grille 411.

[0060] like Figure 4 As shown, the cross-section of the water receiving grid 411 is "V" shaped.

[0061] With this setup, the water-receiving grille 411, which is low in the middle and high on both sides, can more fully receive the condensate dripping from the heat exchanger 2 and collect the condensate at the bottom of the water-receiving tank 4111, preventing the condensate from dripping into the indoor environment.

[0062] In some embodiments, such as Figure 4 As shown, the width of the water-receiving grille 411 in the first direction Y is greater than or equal to the width of the air inlet channel 412 in the first direction Y, so that in any two adjacent grille layers 41, the water-receiving grille 411 of the lower grille layer 41 can cover the air inlet channel 412 of the upper grille layer 41. That is, the orthographic projection of the water-receiving grille 411 of the lower grille layer 41 at least partially covers the air inlet channel 412 of the upper grille layer 41. Figure 4 The horizontal direction in the diagram is the first direction, Y.

[0063] Optionally, each water-receiving grid 411 has the same length. For example... Figure 4 As shown, the width of each water inlet grille 411 in the first direction Y is D1, and the width of each air inlet channel 412 in the first direction Y is D2, satisfying: D1≥D2.

[0064] In this embodiment, since the water-collecting grid 411 of the lower grid layer 41 can cover the air inlet channel 412 of the upper grid layer 41, the condensate dripping from the upper grid layer 41 will be caught by the water-collecting grid 411 of the lower grid layer 41, ensuring that the condensate dripping from the heat exchanger 2 is fully collected and preventing the condensate from dripping into the indoor environment.

[0065] In some embodiments, the total area of ​​the air inlet channels 412 of the multi-layer grille layer 41 is S1, and the orthographic projection area of ​​the grille layer 41 on the projection plane P is S2, satisfying S1≥S2, wherein the projection plane P is perpendicular to the height direction of the heat exchanger 2, and when the indoor unit of the air conditioner where the heat exchange device is located is suspended from the ceiling, the projection plane P is parallel to the horizontal plane.

[0066] For example, the water receiving mechanism 4 includes n grid layers 41, the total area of ​​the air inlet channel 412 of each of the n grid layers 41 is S1', S2'...Sn' respectively, and the orthographic projection area of ​​each grid layer 41 on the projection plane P is S2, then S1=S1'+S2'+...+Sn'≥S2, where n is a positive integer greater than or equal to 2.

[0067] In this embodiment, by setting the total area of ​​the air inlet channels 412 of the multi-layer grille layer 41 to be greater than or equal to the area of ​​the grille layer 41, it is ensured that the water receiving mechanism 4 has sufficient effective air inlet area, thus ensuring that the indoor unit has sufficient air intake.

[0068] Optionally, the total area of ​​the air inlet channel 412 of each grille layer 41 is greater than or equal to 1 / n of S2. For example, when the water receiving mechanism 4 includes two grille layers 41, the total area of ​​the air inlet channel 412 of each of the two grille layers 41 is greater than or equal to half of the opening area of ​​the air inlet 11. In this way, on the one hand, excessive pressure loss of airflow is prevented and the airflow uniformity is improved, and on the other hand, the water receiving grille 411 in each grille layer 41 is ensured to fully receive the condensate dripping from the heat exchanger 2, and the condensate dripping into the indoor environment is prevented.

[0069] In some embodiments, please refer to Figure 1 and Figure 6 The indoor unit also includes a water collection component 51, which is located at the bottom of the housing 1 of the indoor unit of the air conditioner. The water collection component 51 is located on one side of the water receiving mechanism 4 in the second direction X. The water collection component 51 extends along the first direction Y and is provided with a water collection cavity 511. The water collection cavity 511 has a water inlet 512. The water receiving tank 4111 is connected to the water inlet 512 so that the liquid in the water receiving tank 4111 enters the water collection cavity 511 through the water inlet 512. There is an angle between the first direction Y and the second direction X. For example, the first direction Y is perpendicular to the second direction X.

[0070] For example, the water collecting component 51 is a hollow box-shaped structure, the first direction Y is the length direction of the water collecting component 51, and the water inlet 512 of the water collecting cavity 511 is located on the side of the water collecting component 51 facing the water receiving grid 411.

[0071] Exemplarily, the heat exchange device further includes a base plate 5, with a water collection component 51 connected to the base plate 5. The base plate 5 is installed at the bottom of the housing 1, and the base plate 5 is horizontally aligned with the water receiving mechanism 4. The water collection component 51 and the base plate 5 can be integrally connected or assembled; this application does not impose a specific limitation. Optionally, the base plate 5 is detachably connected to the housing 1, or the water collection component 51 is detachably connected to the base plate 5, facilitating the removal of the water collection component 51 after it is filled with condensate and the condensate drained.

[0072] In this embodiment, by setting up a water collection component 51, a storage space is provided for the condensate collected by each water receiving grid 411, which facilitates the centralized treatment and discharge of the condensate.

[0073] In some embodiments, the water receiving grille 411 gradually moves away from the heat exchanger 2 from the end furthest from the water collecting member 51 to the end closest to the water collecting member 51.

[0074] When the indoor unit is suspended below the ceiling, the water collection grille 411 extends in a curved shape or in a straight line, and the height of the water collection grille 411 gradually changes from one end to the other so that the water collection grille 411 has a certain tilt angle relative to the horizontal surface, and the lower end of the water collection grille 411 is connected to the water collection component 51.

[0075] With this setup, the condensate dripping from the heat exchanger 2 is collected by the water collection grille 411 and automatically flows from the higher end to the lower end along the inclined water collection grille 411 under the action of gravity, eventually smoothly entering the water collection device 51. In this way, the automatic drainage of condensate is achieved, ensuring that even if the amount of condensate is very small, it can be effectively guided into the water collection device 51, preventing condensate from accumulating in the water collection grille 411 and dripping into the indoor environment under the disturbance of the air intake airflow.

[0076] In some embodiments, the water inlet grille 411 extends along the second direction X and is inclined relative to the air inlet surface of the heat exchanger 2.

[0077] In this embodiment, the water receiving grille 411 extends in a straight line and is long and narrow. The air inlet surface of the heat exchanger 2 is parallel to the projection plane P. The extension direction of the water receiving grille 411 has an angle with the air inlet surface of the heat exchanger 2.

[0078] This design enables efficient drainage of the water receiving tank 4111, allowing the condensate in the water receiving tank 4111 to flow quickly into the water collecting component 51 along the inclined angle, thus preventing the condensate from accumulating in the water receiving tank 4111.

[0079] In some embodiments, the angle between the water receiving grille 411 and the projection plane P is 1° to 45°, that is, the angle between the water receiving grille 411 and the air inlet surface of the heat exchanger 2 is 1° to 45°. For example Figure 5 As shown, the angle between the water receiving grid 411 and the projection plane P is A1, which can be 1°, 3°, 10°, 45°, etc.

[0080] In this embodiment, the minimum angle of 1° ensures that under the action of gravity, the condensate can overcome the surface tension and flow smoothly to the water collection device 51, thus achieving reliable drainage. The maximum angle between the water receiving grille 411 and the air inlet surface of the heat exchanger 2 is limited to 45° in order to ensure drainage efficiency while avoiding problems such as the water receiving mechanism 4 being too high, reduced safety, and reduced aesthetics caused by the excessive tilt angle of the water receiving grille 411.

[0081] In some embodiments, the heat exchange device further includes a water pumping device 6, which is located inside the air cavity 13, and the liquid inlet 631 of the water pumping device 6 is connected to the water collection cavity 511.

[0082] For example, such as Figure 8As shown, the pumping device 6 includes a pump motor 61, a pump impeller 62, and a pump housing 63. The pump motor 61 and the pump impeller 62 are installed in the pump housing 63, and the pump motor 61 is connected to the pump impeller 62 in a driving connection. The pump housing 63 has an inlet end 631 and an outlet end 632. Driven by the pump motor 61, the pump impeller 62 rotates, thereby drawing condensate from the water collection chamber 511 from the inlet end 631 and discharging the condensate through the outlet end 632.

[0083] Optionally, the outlet end 632 of the pumping device 6 extends from the top of the housing 1 to the outside of the housing 1 and is connected to the drain pipe of the air conditioner to drain condensate.

[0084] Alternatively, the pump impeller 62 may be a backward-curved semi-open impeller or other types of impellers.

[0085] Optionally, such as Figure 9 As shown, the pumping device 6 also includes a check structure 64, which is disposed at the inlet end 631 of the pump housing 63. The check structure 64 ensures that condensate flows unidirectionally from the inlet end 631 to the outlet end 632, preventing condensate backflow. For example, as... Figure 9 As shown, the check valve structure 64 includes a rotating plate 641 and a baffle 642. The rotating plate 641 is rotatably mounted on the liquid inlet end 631. The baffle 642 is disposed on the end face of the liquid inlet end 631 and located outside the rotating plate 641. The baffle 642 protrudes relative to the inner wall of the liquid inlet end 631, thereby stopping the rotating plate 641 when it rotates towards the side close to the water collection chamber 511, preventing the condensate in the pump housing 63 from flowing back into the water collection chamber 511.

[0086] Optionally, a liquid level sensor is installed in the water collection chamber 511 to control the start and stop of the pumping device 6 according to the liquid level of the condensate in the water collection chamber 511, so as to promptly pump out the condensate in the water collection chamber 511.

[0087] In this embodiment, by setting up a water pumping device 6, the condensate in the water collection chamber 511 can be pumped out and discharged, preventing the condensate in the water collection chamber 511 from being stored for a long time and generating bacteria and other pollutants. This realizes the automatic drainage of the heat exchange device, eliminates the need to manually empty the condensate, and improves the automation level of the heat exchange device.

[0088] In some embodiments, the water collecting member 51 has a bottom wall 513, and at least a portion of the extended surface of the bottom wall 513 forms an angle with the projection plane P, wherein the projection plane P is perpendicular to the height direction of the heat exchanger 2.

[0089] Optionally, the bottom wall 513 can be a flat plate, an arc plate, or a structure formed by splicing multiple plates. The bottom wall 513 can be partially inclined to the projection plane P, or it can be entirely inclined to the projection plane P.

[0090] like Figure 6 and Figure 7 As shown, the bottom wall 513 is in the shape of a rectangular plate, and the extension direction of the bottom wall 513 has an angle with the projection plane P.

[0091] By setting at least a portion of the bottom wall 513 to be inclined to the projection plane P, the condensate in the water collection chamber 511 can be guided to converge at the lowest point, which facilitates centralized treatment of the condensate.

[0092] In some embodiments, the inlet end 631 of the pumping device 6 is located at one end of the water collecting member 51 in the first direction Y. In the first direction Y, the further the bottom wall 513 is from the pumping device 6, the closer it is to the heat exchanger 2.

[0093] The inlet end 631 of the pumping device 6 is located at one end of the length of the water collection component 51. When the indoor unit is suspended below the ceiling, the projected plane P is parallel to the horizontal plane. The bottom wall 513 of the water collection component 51 has a certain angle of inclination relative to the horizontal plane. The inlet end 631 of the pumping device 6 is located at the lower end of the bottom wall 513 of the water collection component 51. That is to say, the bottom wall 513 of the water collection component 51 gradually slopes downward from the end away from the inlet end 631 of the pumping device 6 to the end close to the inlet end 631 of the pumping device 6.

[0094] With this setting, the condensate entering the water collection chamber 511 from the inlet 512 will automatically flow from the higher end to the lower end along the inclined bottom wall 513 under the action of gravity, and finally flow to the lowest end where the liquid inlet 631 of the pumping device 6 is located. In this way, the automatic flow of condensate in the water collection chamber 511 is realized, which is conducive to the pumping device 6 fully absorbing and discharging the condensate in the water collection chamber 511, improving drainage efficiency, and preventing bacteria or odor from being generated in the water collection chamber 511 due to the retention of condensate.

[0095] In some embodiments, the angle between the extended surface of the bottom wall 513 and the projection plane P is 1° to 45°. For example... Figure 7 As shown, the angle between the bottom wall 513 and the projection plane P is A2, which can be 1°, 3°, 10°, 45°, etc.

[0096] In this embodiment, the minimum angle of 1° ensures that under the action of gravity, the condensate can be smoothly collected along the bottom wall 513 to the liquid inlet 631 of the pumping device 6 for pumping out the condensate. The maximum angle between the bottom wall 513 and the projection plane P is limited to 45° in order to ensure drainage efficiency while avoiding the water collection component 51 occupying too much space in the height direction of the housing 1, affecting aesthetics and safety.

[0097] like Figure 10 and Figure 11 As shown in the figure, this application embodiment also provides an air conditioner, which includes the heat exchange device provided in any of the above embodiments.

[0098] The air conditioner also includes a housing 1 and a fan 3. The bottom of the housing 1 is provided with an air inlet 11 and the side of the housing 1 is provided with at least two air outlets 12. The inside of the housing 1 is provided with an air cavity 13. The air inlet 11 and the air outlet 12 are both connected to the air cavity 13. The heat exchanger 2 and the fan 3 are both located in the air cavity 13. The fan 3 is used to drive the gas from the air inlet 11 into the air cavity 13 and from the air outlet 12 out of the air cavity 13.

[0099] Optionally, the heat exchanger 2 is installed in the air cavity 13 by means of bolt connection, snap connection, pin connection, etc.

[0100] The bottom and top of the housing 1 are arranged opposite each other along the height direction of the housing 1, and the side of the housing 1 is located between the top and bottom of the housing 1 and surrounds the top and bottom of the housing 1.

[0101] For example, the air inlet 11 and the air outlet 12 are through holes opened on the housing 1. By setting the air inlet 11 at the bottom of the housing 1, the indoor unit can draw air from the indoor environment into the air cavity 13 through the air inlet 11 at the bottom. After heat exchange by the heat exchanger 2 and drive by the fan 3, the air in the air cavity 13 is discharged into the indoor environment through the air outlet 12.

[0102] For example, the impeller shaft of the fan 3 extends along the height direction of the housing 1 to "throw" the air in the air chamber 13 outwards, so that it is discharged from the air outlet 12 on the side of the housing 1 into the indoor environment. Optionally, the air outlet direction can be perpendicular to the height direction of the housing 1 to discharge the air in the air chamber 13 horizontally; or, the air outlet direction can be inclined to the height direction of the housing 1 to discharge the air in the air chamber 13 obliquely downwards or obliquely upwards.

[0103] The number of air outlets 12 can be two, three, four or more, and the multiple air outlets 12 can be evenly or unevenly distributed on the side of the housing 1. The cross-sectional shape of the housing 1 can be circular, elliptical, polygonal or other shapes. It can be understood that the cross-section of the housing 1 is the cross section obtained by cutting the housing 1 with a plane perpendicular to the height direction of the housing 1.

[0104] The air conditioner provided in this application embodiment includes the heat exchange device provided in any of the above embodiments, and therefore has the beneficial effects of the indoor unit of any of the above embodiments, which will not be repeated here.

[0105] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0106] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0107] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A heat exchange device, characterized in that, The heat exchange device includes a heat exchanger (2) and a water receiving mechanism (4), wherein the water receiving mechanism (4) is disposed at the bottom of the heat exchanger (2); The water receiving mechanism (4) includes at least two grid layers (41) distributed along the height direction of the heat exchanger (2). Each grid layer (41) includes multiple water receiving grids (411). The multiple water receiving grids (411) are distributed at intervals along a first direction (Y) to form an air inlet channel (412). The water receiving grids (411) of any two adjacent grid layers (41) are staggered.

2. The heat exchange device according to claim 1, characterized in that, The water receiving grid (411) has a water receiving trough (4111) on the side near the heat exchanger (2), and the water receiving trough (4111) is configured to receive the condensate dripping from the heat exchanger (2).

3. The heat exchange device according to claim 2, characterized in that, The cross-section of the water receiving grid (411) is a U-shaped or V-shaped structure with a low middle and high sides, so as to form the water receiving trough (4111).

4. The heat exchange device according to claim 1, characterized in that, The width of the water-receiving grille (411) in the first direction (Y) is greater than or equal to the width of the air inlet channel (412) in the first direction (Y), so that in any two adjacent grille layers (41), the water-receiving grille (411) of the lower grille layer (41) can cover the air inlet channel (412) of the upper grille layer (41).

5. The heat exchange device according to claim 1, characterized in that, The total area of ​​the air inlet channel (412) of the multi-layered grid layer (41) is S1, and the orthographic projection area of ​​the grid layer (41) on the projection plane (P) is S2, satisfying S1≥S2, wherein the projection plane (P) is perpendicular to the height direction of the heat exchanger (2).

6. The heat exchange device according to any one of claims 1 to 5, characterized in that, The heat exchange device further includes a water collection component (51), which is disposed on one side of the water receiving mechanism (4) in the second direction (X). The water collection component (51) extends along the first direction (Y) and is provided with a water collection cavity (511). The water collection cavity (511) has a water inlet (512). The water receiving tank (4111) is connected to the water inlet (512) so that the liquid in the water receiving tank (4111) enters the water collection cavity (511) through the water inlet (512). There is an angle between the first direction (Y) and the second direction (X).

7. The heat exchange device according to claim 6, characterized in that, The water receiving grid (411) gradually moves away from the heat exchanger (2) from one end away from the water collecting element (51) to the end closer to the water collecting element (51).

8. The heat exchange device according to claim 7, characterized in that, The angle between the water receiving grille (411) and the air inlet surface of the heat exchanger (2) is 1°~45°.

9. The heat exchange device according to claim 6, characterized in that, The heat exchange device also includes a water pumping device (6), the liquid inlet (631) of which is connected to the water collection chamber (511).

10. The heat exchange device according to claim 9, characterized in that, The water collection element (51) has a bottom wall (513), at least a portion of which has an extended surface that forms an angle with the projection plane (P), wherein the projection plane (P) is perpendicular to the height direction of the heat exchanger (2).

11. The heat exchange device according to claim 10, characterized in that, The inlet end (631) of the pumping device (6) is located at one end of the water collecting member (51) in the first direction (Y); In the first direction (Y), the further the bottom wall (513) is from the pumping device (6), the closer it is to the heat exchanger (2).

12. The heat exchange device according to claim 11, characterized in that, The angle between the extended surface of the bottom wall (513) and the projection plane (P) is 1°~45°.

13. An air conditioner, characterized in that, The air conditioner includes the heat exchange device according to any one of claims 1 to 12.

Images