CN214406246U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner indoor unit, including drain pipe and the drainage subassembly that is used for discharging the condensate water, the drainage subassembly includes U type drain line, and U type drain line and drain pipe intercommunication are equipped with sealed lamella subassembly in the U type drain line, and sealed lamella subassembly can be opened under the condensate water impact effect and discharge through drain pipe and U type drain line with the permission condensate water, and sealed lamella subassembly can be closed under the action of gravity and prevent external gas to flow into indoor set through U type drain line. The drainage assembly can ensure the smooth drainage of the condensed water; the outside air is prevented from flowing into the indoor unit through the U-shaped drainage pipeline and the drainage pipe and mixing with the air at the water pan, and the noise is reduced; prevent foreign matters such as external winged insects from entering the room through the U-shaped drainage pipeline and the drainage pipe.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to an air conditioner technical field especially relates to an air conditioner indoor unit.

Background

The air conditioner indoor unit can generate condensed water during refrigerating operation, the condensed water is collected in the indoor unit water pan, the water pan is connected with a drain pipe, the drain pipe is connected with an external public drain pipe, and the condensed water in the water pan is discharged through the drain pipe. For the indoor unit adopting the draw-out type air supply system, when the fan is started, negative pressure can be presented near the water receiving disc of the indoor unit, and the negative pressure value is continuously increased along with the increase of the rotating speed of the fan. Therefore, the air pressure at the outlet of the drain pipe is obviously higher than that at the inlet of the drain pipe, and outdoor air can flow into the room through the drain pipe, so that the smooth discharge of condensed water in the water pan is influenced, and the discharge blockage of the condensed water is generated. Meanwhile, the air flowing in from the drain pipe is mixed with the air flow near the water discharge port of the water receiving tray, and noise is generated. Because the condensed water can not be smoothly discharged, when the condensed water in the water receiving tray exceeds the volume of the water receiving tray, the condensed water can overflow from the water receiving tray. When the indoor unit is in heating operation or in a shutdown state, condensed water does not exist in a drain pipe of the indoor unit, and foreign matters such as outdoor small winged insects and the like can enter the indoor unit through the drain pipe, so that the health of a human body is threatened.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

To the problem pointed out in the background art, the utility model provides an air conditioner, foreign matter such as can guarantee smooth discharge, noise reduction, the avoidance outside winged insect of condensate water gets into indoorly through the drain pipe.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

in some embodiments of the present application, there is provided an indoor unit of an air conditioner, including a drain pipe for draining condensed water, further including:

drainage component, it includes U type drain line, U type drain line with the drain pipe intercommunication, be equipped with the sealing flap subassembly in the U type drain line, the sealing flap subassembly can be opened under the water hammer of condensation and allow the condensate water in the indoor set warp the drain pipe with U type drain line discharges, the sealing flap subassembly can be closed under the action of gravity in order to prevent the external gas warp U type drain line flows in the indoor set.

In some embodiments of this application, according to the condensate discharge direction, U type drain line is including the first pipeline, second pipeline and the third pipeline that communicate in proper order, the sealing flap subassembly is located in the third pipeline.

In some embodiments of the present application, the height H1 of the first conduit is greater than the height H2 of the third conduit.

In some embodiments of the present application, when the fan of the indoor unit operates at the peak value of the rotation speed, the height of the water column corresponding to the peak value of the negative pressure close to the water pan of the indoor unit is Δ H, and the height H2 of the third pipeline is greater than Δ H.

In some embodiments of the present application, the sealing flap assembly includes a stationary shaft on which a first sealing flap and a second sealing flap are rotatably disposed, the first sealing flap and the second sealing flap being disposed on two sides of the stationary shaft;

the first sealing flap and the second sealing flap can be opened under the impact of condensed water so as to open the U-shaped drainage pipeline;

the first sealing flap and the second sealing flap can be closed under the action of gravity to close the U-shaped drainage pipeline.

In some embodiments of the present application, a positioning concave portion is disposed on an inner wall of the third pipeline, and two ends of the fixing shaft are disposed in the positioning concave portion;

be equipped with spacing convex part on the inner wall of third pipeline, first sealing flap with when second sealing flap closes under the action of gravity, first sealing flap with second sealing flap respectively with spacing convex part supports and leans on.

In some embodiments of the present application, a thermal insulation material is disposed on the periphery of the U-shaped drainage pipeline.

In some embodiments of the present application, the drainage assembly further includes a box body, the box body includes a bottom box and an upper cover, a groove portion is provided in the bottom box, and the U-shaped drainage pipeline is provided in the groove portion.

In some embodiments of the present application, a slot is provided on the bottom case, and the upper cover is slidably inserted into the slot.

In some embodiments of the present application, the drain pipe includes a first drain pipe and a second drain pipe;

u type drain line's one end intercommunication has the fourth pipeline, U type drain line's other end intercommunication has the fifth pipeline, the fourth pipeline with the fifth pipeline all with U type drain line's horizontal segment is parallel, the fourth pipeline with first drain pipe intercommunication, the fifth pipeline with the second drain pipe intercommunication.

Compared with the prior art, the utility model discloses an advantage is with positive effect:

in the air conditioner indoor unit disclosed by the application, the drainage component for discharging the condensed water comprises a U-shaped drainage pipeline, a sealing flap component is arranged in the U-shaped drainage pipeline, and the sealing flap component can be opened under the impact action of the condensed water so as to allow the condensed water in the indoor unit to be discharged through the drainage pipe and the U-shaped drainage pipeline; the sealing flap component can be closed under the action of gravity to prevent foreign matters such as external gas, winged insects and the like from flowing into the indoor unit through the U-shaped drainage pipeline. The drainage assembly can ensure the smooth drainage of condensed water through the matching of the U-shaped drainage pipeline and the sealing flap assembly; the outside air is prevented from flowing into the indoor unit through the U-shaped drainage pipeline and the drainage pipe and mixing with the air at the water pan, and the noise is reduced; prevent foreign matters such as external winged insects from entering the room through the U-shaped drainage pipeline and the drainage pipe.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view of a connection structure of a drain assembly and a drain pipe according to an embodiment;

FIG. 2 is a schematic structural view of a drain assembly according to an embodiment;

FIG. 3 is an exploded view of a drain assembly according to an embodiment;

FIG. 4 is a schematic structural view of the drain assembly according to the embodiment with an upper cover omitted;

FIG. 5 is a schematic structural diagram of a cartridge according to an embodiment;

FIG. 6 is an exploded view of a U-shaped drain line according to an embodiment;

FIG. 7 is a schematic structural view of a sealing flap according to an embodiment;

FIG. 8 is a front view of a partial U-shaped drain line according to an embodiment;

FIG. 9 is a sectional view taken along line A-A of FIG. 8;

FIG. 10 is a side view of a partial U-shaped drain line according to an embodiment;

fig. 11 is a cross-sectional view taken along line B-B of fig. 10 (with the sealing flap assembly omitted).

Reference numerals:

1-a drainage assembly;

2-a drain pipe, 21-a first drain pipe, 22-a second drain pipe;

3, a water receiving tray;

100-U-shaped drain pipeline, 110-first pipeline, 120-second pipeline, 130-third pipeline, 140-fourth pipeline, 150-fifth pipeline, 160-positioning concave part and 170-limiting convex part;

200-sealing flap assembly, 210-first sealing flap, 220-second sealing flap, 230-stationary shaft;

300-box body, 310-bottom box, 311-groove part, 312-slot, 313-first nozzle, 314-second nozzle, 320-upper cover.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second", "third", "fourth", "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The air conditioner performs a cooling/heating cycle of the air conditioner, which includes a series of processes involving compression, condensation, expansion, and evaporation, by using a compressor, a condenser, an expansion valve, and an evaporator.

The outdoor unit of the air conditioner refers to a portion including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

When the air conditioner operates in a cooling mode, condensed water is generated in the room. The indoor unit also comprises a water pan 3, and the condensed water is collected in the water pan 3. The water pan 3 is connected with a drain pipe 2, and condensed water in the water pan 3 is discharged through the drain pipe 2.

Referring to fig. 1 to 3 and 6, the indoor unit of the present application further includes a drain assembly 1 including a U-shaped drain pipe 100, and the U-shaped drain pipe 100 communicates with the drain pipe 2.

A sealing flap assembly 200 is provided within the U-shaped drain line 100.

The sealing flap assembly 200 may be opened by the impact of the condensed water during drainage to allow the condensed water in the indoor unit to be drained through the drain pipe 2 and the U-shaped drain line 100.

When the water is not drained, the sealing flap assembly 200 can be closed under the action of gravity to prevent foreign matters such as external air and winged insects from flowing into the indoor unit through the U-shaped drainage pipeline 200.

The drainage assembly 1 can ensure the smooth drainage of condensed water through the matching of the U-shaped drainage pipeline 100 and the sealing flap assembly 200; the outside air is prevented from flowing into the indoor unit through the U-shaped drainage pipeline 100 and the drainage pipe 2 and mixing with the air at the water pan 3, and the noise is reduced; and foreign matters such as external winged insects are prevented from entering the indoor unit through the U-shaped drain pipeline 100 and the drain pipe 2.

In this embodiment, there is no limitation on the specific structure of the U-shaped drainage pipeline 100, that is, the U-shaped drainage pipeline 100 is formed by communicating several sections of pipelines, as long as the finally formed structure is a U-shaped pipeline structure.

In some embodiments of the present application, referring to fig. 4 and 6, the U-shaped drain line 100 includes a first line 110, a second line 120, and a third line 130 which are sequentially communicated with each other in a direction in which the condensed water is discharged.

The first pipeline 110, the second pipeline 120, and the third pipeline 130 may be an integral structure, or may be formed by connecting a plurality of pipelines.

In this embodiment, the first pipe 110 and the second pipe 120 are an integral structure, and a plug-in connection position is provided at a position in the middle of the third pipe 130, so that the sealing flap assembly 200 is installed in the third pipe 130 through the plug-in connection position.

During drainage, the condensed water flows through the first pipeline 110, the second pipeline 120 and the third pipeline 130 in sequence, and the sealed sealing flap assembly 200 is flushed away when the condensed water flows through the third pipeline 130, and referring to fig. 9, the condensed water is drained.

When the water is not drained, the sealing flap assembly 200 falls back and is closed under the action of the gravity of the sealing flap assembly, so that external gas, flying insects and the like are prevented from entering the indoor unit through the U-shaped drainage pipeline 100.

Referring to fig. 4, the height H1 of the first pipe 110 is greater than the height H2 of the third pipe 130. When the fan of the indoor unit operates at the rotating speed peak value, the height of the water column corresponding to the negative pressure peak value close to the water receiving disc 3 is delta H, the unit is mm water column, and the height H2 of the third pipeline 130 is larger than delta H.

When the indoor machine generates the condensed water in the cooling operation, the condensed water flows through the U-shaped drain line 100 and washes the sealing flap assembly 200, and the condensed water is discharged. When negative pressure occurs near the drip tray 3, the air pressure is lower than the outdoor air pressure, and since the height H2 of the third pipeline 130 is greater than the water column height Δ H corresponding to the peak value of the negative pressure near the drip tray 3, the outdoor air is confined at the front end (with respect to the inflow direction of the outdoor air) of the sealing flap assembly 200, thereby preventing the outdoor air from flowing back into the indoor unit. When the condensed water fills the first and second pipelines 110 and 120 and reaches the sealing flap assembly 200, the water pressure of the first pipeline 110 is enough to overcome the water column height Δ H corresponding to the maximum negative pressure because the height H1 of the first pipeline is greater than the height H2 of the third pipeline 130, thereby ensuring smooth discharge of the condensed water.

In some embodiments of the present application, H1=3 × H2, H2= (2-3) × Δ H.

In some embodiments of the present application, referring to fig. 1, the drain pipe 2 includes a first drain pipe 21 and a second drain pipe 22; referring to fig. 4, one end of the U-shaped drain line 100 is communicated with a fourth line 140, the fourth line 140 is communicated with the first line 110, the other end of the U-shaped drain line 100 is communicated with a fifth line 150, the fifth line 150 is communicated with the third line 130, the fourth line 140 and the fifth line 150 are both parallel to the horizontal section (i.e., the second line 120) of the U-shaped drain line 100, the fourth line 140 is communicated with the first drain pipe 21, and the fifth line 150 is communicated with the second drain pipe 22. The fourth and fifth pipes 140 and 150 are provided to facilitate the installation of the U-shaped drain pipe 100 in communication with the drain pipe 2.

In this embodiment, the fourth pipeline 140 and the first pipeline 110 are integrated, and the fifth pipeline 150 and the third pipeline 130 are integrated.

The fourth pipeline 140 and the fifth pipeline 150 may be made of a stretchable plastic corrugated pipe so as to be connected to the first drain pipe 21 and the second drain pipe 22 at different positions, thereby improving the applicability.

In some embodiments of the present application, referring to fig. 7, the sealing flap assembly 200 includes a fixed shaft 230, a first sealing flap 210 and a second sealing flap 220 are rotatably disposed on the fixed shaft 230, and the first sealing flap 210 and the second sealing flap 220 are respectively disposed on two sides of the fixed shaft 230.

When water is drained, the first sealing flap 210 and the second sealing flap 220 can be opened by the impact of the condensed water, and the opening means a state that the first sealing flap 210 and the second sealing flap 220 are turned upwards and approach each other, so as to open the U-shaped drain pipe 100.

When the water is not drained, the first sealing flap 210 and the second sealing flap 220 can be closed under the action of gravity, and the closing means a state that the first sealing flap 210 and the second sealing flap 220 are turned downwards and are away from each other, so that the U-shaped drainage pipeline 100 is closed.

With regard to a specific installation structure of the sealing flap assembly 200, referring to fig. 8 to 11, a positioning concave portion 160 is provided on an inner wall of the third pipeline 130, and both ends of the fixing shaft 230 are provided in the positioning concave portion 160 to achieve fixed installation of the sealing flap assembly 200.

The inner wall of the third pipeline 130 is provided with a limit convex part 170, and when the first sealing flap 210 and the second sealing flap 220 are closed under the action of gravity, the first sealing flap 210 and the second sealing flap 220 are respectively abutted against the limit convex part 170, so that the first sealing flap 210 and the second sealing flap 220 are kept in a horizontally unfolded state, and the U-shaped drainage pipeline 100 is sealed.

In some embodiments, a thermal insulation material (not shown) is disposed around the U-shaped drain line 100 to prevent the U-shaped drain line 100 from condensing and dripping water.

In some embodiments of the present application, referring to fig. 2 to 4, the drainage assembly 1 further includes a box body 300, the box body 300 includes a bottom box 310 and an upper cover 320, a groove portion 311 is formed in the bottom box 310, and the U-shaped drainage pipeline 100 is disposed in the groove portion 311, so that the U-shaped drainage pipeline 100 and the box body 300 can be better fixed as a whole.

The box body 300 is further provided with a first outlet 313 and a second outlet 314, the fourth pipe 140 extends from the first outlet 313 to communicate with the first drain pipe 21, and the fifth pipe 150 extends from the second outlet 314 to communicate with the second drain pipe 22.

The box body 300 has a certain protection effect on the U-shaped drainage pipeline 100 inside and the heat insulation material arranged on the periphery of the U-shaped drainage pipeline 100, and the use reliability of the whole drainage assembly 1 is improved.

In some embodiments of the present application, referring to fig. 5, the bottom case 310 is provided with a slot 312, and the upper cover 320 is detachably and slidably inserted into the slot 312, so as to facilitate the detachment and installation of the internal U-shaped drainage pipeline 100.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An air conditioner indoor unit, includes the drain pipe that is used for discharging the condensate water, its characterized in that still includes:

drainage component, it includes U type drain line, U type drain line with the drain pipe intercommunication, be equipped with the sealing flap subassembly in the U type drain line, the sealing flap subassembly can be opened under the water hammer of condensation and allow the condensate water in the indoor set warp the drain pipe with U type drain line discharges, the sealing flap subassembly can be closed under the action of gravity in order to prevent the external gas warp U type drain line flows in the indoor set.

2. An indoor unit of an air conditioner according to claim 1,

according to the condensate discharge direction, U type water drainage pipeline is including the first pipeline, second pipeline and the third pipeline that communicate in proper order, the sealing flap subassembly is located in the third pipeline.

3. An indoor unit of an air conditioner according to claim 2,

the height H1 of the first tube is greater than the height H2 of the third tube.

4. An indoor unit of an air conditioner according to claim 2,

when a fan of the indoor unit operates at a rotating speed peak value, the height of a water column corresponding to a negative pressure peak value close to a water receiving disc of the indoor unit is delta H, and the height H2 of the third pipeline is larger than delta H.

5. An indoor unit of an air conditioner according to claim 2,

the sealing flap assembly comprises a fixed shaft, a first sealing flap and a second sealing flap are rotatably arranged on the fixed shaft, and the first sealing flap and the second sealing flap are respectively arranged on two sides of the fixed shaft;

the first sealing flap and the second sealing flap can be opened under the impact of condensed water so as to open the U-shaped drainage pipeline;

the first sealing flap and the second sealing flap can be closed under the action of gravity to close the U-shaped drainage pipeline.

6. An indoor unit of an air conditioner according to claim 5,

a positioning concave part is arranged on the inner wall of the third pipeline, and two ends of the fixing shaft are arranged in the positioning concave part;

be equipped with spacing convex part on the inner wall of third pipeline, first sealing flap with when second sealing flap closes under the action of gravity, first sealing flap with second sealing flap respectively with spacing convex part supports and leans on.

7. An indoor unit of an air conditioner according to any one of claims 1 to 6,

and the periphery of the U-shaped drainage pipeline is provided with a heat insulation material.

8. An indoor unit of an air conditioner according to claim 7,

the drainage assembly further comprises a box body, the box body comprises a bottom box and an upper cover, a groove portion is arranged in the bottom box, and the U-shaped drainage pipeline is arranged in the groove portion.

9. An indoor unit of an air conditioner according to claim 8,

the bottom box is provided with a slot, and the upper cover is in sliding insertion with the slot.

10. An indoor unit of an air conditioner according to any one of claims 1 to 6,

the drain pipe comprises a first drain pipe and a second drain pipe;

u type drain line's one end intercommunication has the fourth pipeline, U type drain line's other end intercommunication has the fifth pipeline, the fourth pipeline with the fifth pipeline all with U type drain line's horizontal segment is parallel, the fourth pipeline with first drain pipe intercommunication, the fifth pipeline with the second drain pipe intercommunication.

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