Air conditioner and control method thereof

Abstract

The invention provides an air conditioner and a control method thereof, the air conditioner comprises an outer box body, an outdoor side heat exchanger and a chassis, and the outdoor side heat exchanger is arranged in the outer box body; at least part of the base plate is arranged in the outer box body and located on the lower side of the base plate, and the base plate is provided with a water receiving tank for receiving condensate water condensed by the outdoor heat exchanger and a water outlet structure communicated with the water receiving tank. And the water outlet structure extends out of the outer box body so as to discharge water in the water receiving tank from the outer side of the outer box body. The air conditioner is high in drainage efficiency, and the problem that condensate water or defrosting water is accumulated and frozen on the bottom plate is not prone to occurring.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to an air conditioner and a control method thereof. Background Art

[0002] In the related through-wall air conditioner, as Figures 1 to 3 shown, its chassis is arranged in the outer box body, and a water receiving tank for receiving condensed water or defrosting water is arranged on the chassis. A water outlet hole is formed in the bottom wall of the water receiving tank, and a drain hole is arranged at the bottom of the side wall of the outer box body close to the outdoor side, so that the drain hole is communicated with the gap between the bottom wall of the outer box body and the chassis. When the air conditioner is in heating or defrosting, the condensed water or melted defrosting water condensed on the outdoor side heat exchanger first flows into the gap between the bottom wall of the outer box body and the chassis through the water outlet hole on the water receiving tank, and then is discharged to the outdoor through the drain hole. However, the area of the bottom wall of the outer box body is large. After the condensed water or defrosting water flows into the gap between the bottom wall of the outer box body and the chassis, it will spread on the bottom wall of the outer box body and slowly flow out through the drain hole, resulting in low drainage efficiency. Especially in the case of cold outdoor environment, the condensed water or defrosting water is not discharged in time, so that the condensed water or defrosting water is easy to freeze on the chassis and block the water outlet, causing the problem that the air conditioner cannot operate normally. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide an air conditioner and a control method thereof that overcome the above problems or at least partially solve the above problems.

[0004] An object of the present invention is to solve the problem of low drainage efficiency of the air conditioner in the related art, so as to avoid the condensed water or defrosting water from freezing on the chassis.

[0005] Specifically, the present invention provides an air conditioner.

[0006] The air conditioner of the present invention includes: an outer box body; an outdoor side heat exchanger arranged in the outer box body; a chassis, at least part of the chassis is arranged in the outer box body and is located below the chassis, and a water receiving tank for receiving the condensed water condensed by the outdoor side heat exchanger and a water outlet structure communicated with the water receiving tank are arranged on the chassis; the water outlet structure extends out of the outer box body to discharge the water in the water receiving tank outside the outer box body.

[0007] In some embodiments, the water outlet structure is a switching valve; a through hole is arranged on the side wall of the water receiving tank; the water outlet structure is arranged at the through hole.

[0008] In some embodiments, a water collecting tank section and a drainage tank section are sequentially connected on the bottom surface of the water receiving tank; the through hole is arranged on the drainage tank section; the depth of the water collecting tank section is less than the depth of the drainage tank section.

[0009] In some embodiments, the water collecting tank section extends along the length direction of the water receiving tank; the ratio of the dimension of the water collecting tank section in the length direction of the water receiving tank to the length dimension of the water receiving tank is 1 / 2 to 5 / 6; and / or, the drain tank section extends along the width direction of the water collecting tank and is connected to the outside of one end of the drain tank section.

[0010] In some embodiments, the minimum distance between the water inlet of the water outlet structure and the bottom wall surface of the drain tank section is less than or equal to 1 mm; the lowermost end of the water inlet of the water outlet structure is 1 mm to 3 mm lower than the bottom wall surface of the water collecting tank section.

[0011] In some embodiments, the air conditioner further includes: a heating tape disposed in the water receiving tank for heating the water in the water receiving tank.

[0012] In some embodiments, the outer casing has a horizontally outward open end, and an upwardly extending flange is provided at the lower edge of the open end; a first through hole is provided on the flange; the through hole is correspondingly provided with the first through hole, and the water outlet structure passes through the first through hole and extends out of the outer casing; and / or, the air conditioner further includes a grille, and the grille covers the open end; a second through hole is provided on the grille, and the second through hole corresponds to the first through hole, and the water outlet structure sequentially passes through the first through hole and the second through hole.

[0013] The control method for the air conditioner according to any one of the above includes: when entering the defrosting mode, obtaining the outdoor ambient temperature value; obtaining the defrosting temperature value and / or controlling the heating tape according to the outdoor ambient temperature value; wherein, the defrosting temperature value is negatively correlated with the outdoor ambient temperature value; defrosting the outdoor heat exchanger according to the defrosting temperature value.

[0014] In some embodiments, the control method of the air conditioner further includes: after defrosting the outdoor heat exchanger according to the defrosting temperature value for a first preset time period, obtaining the temperature value of the outdoor heat exchanger every second preset time period; the second preset time period is less than the first preset time period; if the temperature value of the outdoor heat exchanger is greater than or equal to the defrosting temperature value, then exit the defrosting mode.

[0015] In some embodiments, the control method of the air conditioner further includes: when entering the heating mode, controlling the water outlet structure to open and obtaining the outdoor ambient temperature value; when the outdoor ambient temperature value is less than or equal to a first temperature value and greater than a second temperature value, controlling the heating tape to heat the water in the water receiving tank every third preset time; when the outdoor ambient temperature value is less than or equal to the second temperature value, controlling the heating tape to continuously heat the water in the water receiving tank.

[0016] In the air conditioner according to an embodiment of the present invention, a water receiving tank and a water outlet structure communicating with the water receiving tank are provided on the chassis, and the water outlet structure extends out of the outer box body. After receiving condensed water or defrosting water in the water receiving tank, the condensed water or defrosting water can directly be discharged out of the box body through the water outlet structure, greatly improving the drainage efficiency, enabling the condensed water or defrosting water to be discharged out of the outer box body in time, avoiding the situation of ice accumulation on the chassis, and ensuring that the air conditioner according to the embodiment of the present invention can normally operate in the heating mode or the defrosting mode under cold external conditions.

[0017] From the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more clear about the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0019] Figure 1 is a schematic structural diagram of an air conditioner according to the related art;

[0020] Figure 2 is a schematic structural diagram of an air conditioner according to the related art;

[0021] Figure 3 is a schematic structural diagram of an outer box body according to the related art;

[0022] Figure 4 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of a chassis according to an embodiment of the present invention;

[0024] Figure 6 is a schematic structural diagram of a chassis according to another embodiment of the present invention;

[0025] Figure 7 is a schematic structural diagram of a chassis according to another embodiment of the present invention;

[0026] Figure 8 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;

[0027] Figure 9 is Figure 8 a partial enlarged schematic structural diagram at position A in

[0028] Figure 10is a schematic flowchart of the control method of the air conditioner according to an embodiment of the present invention;

[0029] Figure 11 is a schematic flowchart of the control method of the air conditioner according to an embodiment of the present invention;

[0030] Figure 12 is a schematic flowchart of the control method of the air conditioner according to an embodiment of the present invention.

[0031] Reference numerals:

[0032] Air conditioner 10;

[0033] Outer cabinet 100; open end 110; lower edge 111; flanging 112; first through hole 113;

[0034] Outdoor heat exchanger 200;

[0035] Chassis 300; water receiving tank 310; side wall 320; through hole 321; bottom surface 330; water collecting tank section 340; drainage tank section 350; water outlet structure 360; water inlet 361;

[0036] Heating tape 400; air deflector grille 500; second through hole 511;

[0037] Outer cabinet 700; drain hole 710; chassis 800; water receiving tank 810; water outlet hole 811. Detailed implementation manners

[0038] The following will refer to Figures 1 to 12 to describe the air conditioner and its control method according to an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, including one or more of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0039] Unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0040] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. That is, in the description of this embodiment, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "beneath", or "under" the second feature may be the first feature being directly below or obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal height than the second feature.

[0041] In the description of this embodiment, the description referring to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] The air conditioner 10 of the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0043] As Figures 4 - 9 shown, the air conditioner 10 of the embodiment of the present invention includes an outer cabinet 100, an outdoor heat exchanger 200, and a chassis 300. Among them, the air conditioner 10 is a through-wall air conditioner 10. When installing the air conditioner 10, the outer cabinet 100 is embedded and installed in the wall. The outdoor heat exchanger 200 is arranged in the outer cabinet 100, and at least part of the chassis 300 is arranged in the outer cabinet 100 and is located below the chassis 300. The chassis 300 includes an indoor part and an outdoor part. An indoor heat exchange component is installed on the indoor part, and an outdoor heat exchange component is installed on the outdoor part, where the outdoor heat exchange component includes the outdoor heat exchanger 200.

[0044] A water receiving tank 310 and a water outlet structure 360 are provided on the chassis 300. The water receiving tank 310 is used to receive the condensed water condensed by the outdoor heat exchanger 200, and the water outlet structure 360 is communicated with the water receiving tank 310. The water outlet structure 360 extends out of the outer cabinet 100 to discharge the water in the water receiving tank 310 outside the outer cabinet 100.

[0045] In some alternative embodiments, the water outlet structure 360 sequentially passes through the wall surface of the water receiving tank 310 and the outer cabinet 100, so that the condensed water or defrosting water in the water receiving tank 310 is directly discharged outside the outer cabinet 100 through the water outlet structure 360.

[0046] In some other alternative embodiments, one end of the outer cabinet 100 close to the outdoor is open, and a part of the water receiving tank 310 extends out of the outer cabinet 100 from this end. The water outlet structure 360 is arranged on this part of the water receiving tank 310, so that the condensed water or defrosting water in the water receiving tank 310 can be directly discharged outside the outer cabinet 100.

[0047] As Figures 1 - 3 shown, the through-wall air conditioner 10 in the related art includes an outer cabinet 100, a chassis 300 and an outdoor heat exchanger 200. The chassis 300 is arranged in the outer cabinet 100, and a water receiving tank 310 for receiving condensed water or defrosting water is arranged on the chassis 300. A water outlet hole is opened on the bottom wall of the water receiving tank 310, and a drain hole is arranged at the bottom of the side wall 320 of the outer cabinet 100 close to the outdoor, so that the drain hole is communicated with the gap between the bottom wall of the outer cabinet 100 and the chassis 300.

[0048] After research by the inventor, it is found that when the through-wall air conditioner 10 in the related art is in the heating mode or the defrosting mode, the condensed water condensed on the outdoor heat exchanger 200 or the melted defrosting water will flow into the water receiving tank 310 and flow to the bottom wall of the outer cabinet 100 through the water outlet hole. After the condensed water or defrosting water flows to the bottom wall of the outer cabinet 100, not all of it directly flows to the drain hole, but first slowly diffuses around on the bottom wall of the outer cabinet 100, and only a part of the condensed water / defrosting water diffusing to the drain hole will be directly discharged from the outer cabinet 100 through the drain hole, while the rest of the condensed water or defrosting water will stay on the bottom wall of the outer cabinet 100 for a long time. When the outdoor environment is cold, the water staying on the bottom wall of the outer cabinet 100 will freeze and gradually block the water outlet hole, resulting in the water outlet hole being unable to drain water normally, and finally causing ice accumulation on the chassis 300, affecting the normal operation of the air conditioner 10.

[0049] Compared with the related art, in the air conditioner 10 according to an embodiment of the present invention, a water receiving tank 310 and a water outlet structure 360 communicating with the water receiving tank 310 are provided on a chassis 300, and the water outlet structure 360 extends out of an outer casing 100. After the condensed water or defrosting water is received in the water receiving tank 310, the condensed water or defrosting water can be directly discharged out of the casing through the water outlet structure 360, greatly improving the drainage efficiency, enabling the condensed water or defrosting water to be discharged from the outer casing 100 in time, avoiding the situation of ice accumulation on the chassis 300, and ensuring that the air conditioner 10 according to the embodiment of the present invention can normally operate in a heating mode or a defrosting mode under cold external conditions.

[0050] The air conditioner 10 according to an embodiment of the present invention includes an outer casing 100, an outdoor heat exchanger 200, an indoor heat exchanger, a fan, and a chassis 300. The indoor heat exchanger is disposed on an indoor side portion of the chassis 300 so that the indoor heat exchanger releases heat or cold to the indoor, and the fan is disposed on an outdoor side portion of the chassis 300 and corresponds to the water receiving tank 310.

[0051] In some embodiments, as Figure 8 and Figure 9 shown, the water outlet structure 360 is a switching valve, a through hole 321 is provided on a side wall 320 of the water receiving tank 310, and the water outlet structure 360 is disposed at the through hole 321. That is to say, a channel for water to pass through is provided inside the water outlet structure 360. When the water outlet structure 360 is in an open state, the water in the water receiving tank 310 can be discharged to the outside of the casing through the water outlet structure 360. When the water outlet structure 360 is in a closed state, the channel inside the water outlet structure 360 is blocked, and the water in the water receiving tank 310 cannot be discharged to the outside of the casing through the water outlet structure 360.

[0052] When the air conditioner 10 is in a cooling mode, the water outlet structure 360 can be adjusted to a closed state so that the condensed water accumulates in the water receiving tank 310. When the fan operates, its fan blades beat the water in the water receiving tank 310 into water mist so that the water mist can adhere to the indoor heat exchanger to improve the heat exchange efficiency.

[0053] When the air conditioner 10 is in a heating mode or a defrosting mode, the water outlet structure 360 is adjusted to an open state so that the defrosting water or condensed water generated by the outdoor heat exchanger 200 can be quickly discharged through the water outlet structure 360, ensuring the normal operation of the air conditioner 10 according to this embodiment.

[0054] Specifically, the water outlet structure 360 is columnar, and includes an inlet end and an outlet end that are axially opposite. The water outlet structure 360 is installed on the side wall 320 of the water receiving tank 310 through the through hole 321. The inlet end of the water outlet structure 360 extends into the water receiving tank 310, and its outlet end passes through the outer casing 100 to the outside.

[0055] Optionally, the water outlet structure 360 can be an electrically controlled switching valve.

[0056] Optionally, the water outlet structure 360 can be a temperature-controlled switch valve. The water outlet structure 360 includes a valve body, a valve core, and a temperature-sensitive shape memory alloy spring. The valve body is provided with a water inlet 361 and a water outlet. The valve core is located inside the valve body and on the side of the water inlet 361. One end of the temperature-sensitive shape memory alloy spring abuts against the valve core, and the other end abuts against the inner wall of the valve body. As the external temperature rises, the elasticity of the temperature-sensitive shape memory alloy spring becomes larger, and the pressure of the water in the water receiving tank 310 cannot open the valve core, so that the water receiving tank 310 stores water. As the external temperature drops, the elasticity of the temperature-sensitive shape memory alloy spring becomes smaller, and the pressure of the water in the water receiving tank 310 can open the valve core, so that the water in the water receiving tank 310 can flow out through the water outlet structure 360.

[0057] For example, when the outdoor temperature is lower than 16°C, the water outlet structure 360 opens for drainage. When the outdoor temperature is lower than 5°C, the water outlet structure 360 is in a fully open state.

[0058] In some embodiments, as Figure 5 and Figure 6 shown, a water collecting tank section 340 and a drain tank section 350 are sequentially connected on the bottom surface 330 of the water receiving tank 310, and the through hole 321 is provided on the drain tank section 350. The depth of the water collecting tank section 340 is less than the depth of the drain tank section 350. That is to say, there is also a downwardly concave water collecting tank section 340 and a drain tank section 350 on the bottom surface 330 of the water receiving tank 310, and the water collecting tank section 340 is relatively shallower than the drain tank section 350, so that the water flow naturally guides to the drain tank section 350. The drain tank section 350 can quickly collect condensed water or defrosting water by gravity, and the water outlet device located here can enhance the self-draining ability of the water flow in the water receiving tank 310 and reduce the risk of water accumulation residue in the water receiving tank 310. On the other hand, the drain tank section 350 can correspond to the fan, and a stable water flow is formed by the height difference between the bottom walls of the water collecting tank section 340 and the drain tank section 350, ensuring that the fan can pump water more efficiently, thereby improving the heat exchange efficiency.

[0059] In some embodiments, as Figure 5 and Figure 6 shown, the water collecting tank section 340 extends along the length direction of the water receiving tank 310 (for example Figure 5 the left-right direction in

[0060] ), thereby expanding the water collection range of the water collecting tank and avoiding the problem of water accumulation residue in the water receiving tank 310. Figure 5extends in the front-rear direction and is connected to the outside of one end of the drain trough section 350. That is to say, the water collection trough section 340 and the drain trough section 350 are arranged in a "T" shape as a whole. When the water in the water collection trough section 340 flows into the drain trough section 350, the size of the flow channel becomes narrower, so that the flow rate of the water entering the drain trough section 350 becomes faster, enabling the water to be discharged more quickly from the water outlet structure 360, further improving the drainage efficiency.

[0061] Optionally, the ratio of the size of the water collection trough section 340 in the length direction of the water receiving trough 310 to the length size of the water receiving trough 310 is 1 / 2 to 5 / 6. This not only expands the water collection range of the water collection trough section 340, avoiding the problem of water accumulation and residue in the water receiving trough 310, but also prevents the size of the water collection trough section 340 in the length direction of the water receiving trough 310 from being too large, enabling the water in the water collection trough section 340 to flow into the drain trough section 350 in time and preventing water accumulation in the water collection trough section 340.

[0062] Among them, the ratio of the size of the water collection trough section 340 in the length direction of the water receiving trough 310 to the length size of the water receiving trough 310 includes but is not limited to 1 / 2, 2 / 3 or 5 / 6.

[0063] In some embodiments, as Figure 7 shown, the minimum distance between the water inlet 361 of the water outlet structure 360 and the bottom wall surface of the drain trough section 350 is less than or equal to 1 mm. The lowermost end of the water inlet 361 of the water outlet structure 360 is 1 mm to 3 mm lower than the bottom wall surface of the water collection trough section 340. That is to say, the minimum distance between the water inlet 361 of the water outlet structure 360 and the bottom wall surface of the drain trough section 350 includes but is not limited to 0.1 mm, 0.3 mm, 0.5 mm, 0.8 mm, 0.9 mm or 1 mm. The lowermost end of the water inlet 361 of the water outlet structure 360 is 1 mm, 2 mm or 3 mm lower than the bottom wall surface of the water collection trough section 340. This enables the water inlet 361 of the water outlet structure 360 to be close to the bottom wall surface of the drain trough section 350, so that the water in the drain trough section 350 can flow out from the water outlet structure 360 in time.

[0064] In addition, the drain trough section 350 can compensate for the influence of the necessary fillet during the stamping of the chassis 300 on the position of the through hole 321, thereby avoiding the problem of poor drainage of the water receiving trough 310 caused by the too high position of the water collection trough section 340.

[0065] In some embodiments, as Figure 8As shown in the figure, the air conditioner 10 according to the embodiment of the present invention further includes a heating belt 400. The heating belt 400 is disposed in the water receiving tank 310, and the heating belt 400 is used to heat the water in the water receiving tank 310. Specifically, the heating belt 400 includes a first part and a second part. The first part is correspondingly disposed at the water collecting tank section 340, and the extending direction of the first part is the same as the extending direction of the water collecting tank section 340. The second part is correspondingly disposed at the drain tank section 350, and the extending direction of the second part is the same as the extending direction of the drain tank section 350. Thus, the water in the water receiving tank 310 is heated by the heating belt 400, so that before the condensed water or defrosting water flows into the water outlet structure 360, the condensed water or defrosting water can maintain a liquid state, ensuring that the condensed water or defrosting water can be smoothly discharged to the outside of the outer casing 100.

[0066] Further, the first part includes a plurality of first bending segments and a plurality of first straight segments. The plurality of first straight segments are spaced apart, and adjacent first straight segments are connected end to end through the first bending segments. The second part includes a plurality of second bending segments and a plurality of second straight segments. The plurality of second straight segments are spaced apart, and adjacent second straight segments are connected end to end through the second bending segments. The distance between adjacent first straight segments is less than the distance between adjacent second straight segments. It can be understood that in the case of a cold outdoor environment, the temperature of the space inside the outer casing 100 is lower in the part closer to the outdoor side. Therefore, the heating belt 400 disposed in the drain tank section 350 is denser than the heating belt 400 disposed in the water collecting tank section 340, so as to ensure that the water in the drain tank section 350 does not freeze in the cold, and ensure that the condensed water or defrosting water can be smoothly discharged to the outside of the outer casing 100.

[0067] Optionally, the heating belt 400 is an electric heating belt 400.

[0068] In some embodiments, as Figure 8 and Figure 9 shown, the outer casing 100 has an open end 110 facing horizontally outward. A flanging 112 extending upward is provided at the lower edge 111 of the open end 110, and a first through hole 113 is provided on the flanging 112. The through hole 321 is correspondingly disposed with the first through hole 113, and the water outlet structure 360 passes through the first through hole 113 and extends out of the outer casing 100. Thus, the water outlet structure 360 can pass through the first through hole 113 and extend out of the outer casing 100, with a simple structure and easy to manufacture.

[0069] Further, as Figure 8 and Figure 9As shown, the air conditioner 10 further includes an air deflector grille 500, which is covered on the open end 110; a second through hole 511 is provided on the air deflector grille 500, and the second through hole 511 corresponds to the first through hole 113. The water outlet structure 360 sequentially passes through the first through hole 113 and the second through hole 511, so that not only can the open end 110 of the outer box 100 be installed with the air deflector grille 500, but also the air deflector grille 500 does not interfere with the water outlet structure 360 to drain water outdoors.

[0070] The following describes the control method of the air conditioner 10 according to the embodiments of the present invention with reference to the accompanying drawings.

[0071] As Figure 12 shown, the control method of the air conditioner 10 according to the embodiments of the present invention uses the air conditioner 10 of any of the above embodiments. The control method of the air conditioner 10 according to the embodiments of the present invention includes the following steps:

[0072] S100. When entering the heating mode, control the water outlet structure 360 to open and obtain the outdoor ambient temperature value. The outdoor ambient temperature value can be obtained by using a temperature sensor, wherein the temperature sensor can be provided on the outer surface of the outdoor part of the outer box 100.

[0073] S210. Judge whether the outdoor ambient temperature value is greater than the first temperature value.

[0074] S211. If so, control the heating belt 400 not to work.

[0075] That is to say, when the outdoor ambient temperature value is greater than the first temperature value, control the heating belt 400 not to work, that is, the heating belt 400 does not heat the water in the water receiving tank 310.

[0076] S220. Judge whether the outdoor ambient temperature value is less than or equal to the first temperature value and greater than the second temperature value.

[0077] S221. If so, control the heating belt 400 to heat the water in the water receiving tank 310 every third preset time.

[0078] That is to say, when the outdoor ambient temperature value is less than or equal to the first temperature value and greater than the second temperature value, control the heating belt 400 to heat the water in the water receiving tank 310 every third preset time.

[0079] S230. Judge whether the outdoor ambient temperature value is less than or equal to the second temperature value.

[0080] S231. If so, control the heating belt 400 to continuously heat the water in the water receiving tank 310.

[0081] That is to say, when the outdoor ambient temperature value is less than or equal to the second temperature value, the heating belt 400 is controlled to continuously heat the water in the docking water tank 310.

[0082] When the outdoor ambient temperature is at different temperature thresholds, the heating belt 400 is controlled to heat the condensed water in the docking water tank 310 in different heating modes. The lower the temperature value of the outdoor ambient temperature, the longer the heating duration of the heating belt 400.

[0083] For example, the first temperature value is -1°C and the second temperature value is -5°C. When the air conditioner 10 in this embodiment is in the heating mode using the indoor-side heat exchanger, when the outdoor temperature is greater than -1°C, the heating belt 400 does not operate; when the outdoor temperature is less than or equal to -1°C and greater than -5°C, the heating belt 400 heats the condensed water in the docking water tank 310, and for every 30 minutes of operation of the heating belt 400, it stops operating for 10 minutes; when the outdoor temperature is less than or equal to -5°C, the heating belt 400 is controlled to continuously heat.

[0084] The control method of the air conditioner 10 according to the embodiment of the present invention controls the operation mode of the heating belt 400 on the chassis 300 according to the outdoor ambient temperature. The lower the outdoor environment, the longer the operation duration of the heating belt 400. This not only ensures that the condensed water in the water receiving tank 310 can smoothly drain to the outside of the outer casing 100 through the water outlet structure 360, but also can minimize the operation duration of the heating belt 400, saving energy.

[0085] In addition, the water outlet structure 360 of the air conditioner 10 according to the embodiment of the present invention can directly discharge the condensed water in the water receiving tank 310 to the outside of the outer casing 100, thus greatly improving the drainage efficiency of the condensed water. Therefore, when the outdoor temperature is lower and close to the freezing temperature of water, for example, the outdoor temperature is -1°C, since the condensed water in the water receiving tank 310 can be quickly discharged from the water receiving tank 310, the condensed water can be discharged outside the outer casing 100 before freezing. Therefore, the first temperature value can be set to a lower temperature value, thereby further shortening the operation duration of the heating belt 400.

[0086] It should be noted that for the air conditioner 10 in the related art, although a heating belt 400 can also be provided on its chassis 300 to keep the water in the water receiving tank 310 in a liquid state, after the water in the water receiving tank 310 flows to the bottom wall of the chassis 300, due to the slow diffusion of the condensed water, the residence time of the condensed water is too long, resulting in the condensed water still freezing on the bottom wall of the outer casing 100.

[0087] In some embodiments, the control method of the air conditioner 10 according to the embodiment of the present invention further includes the following steps:

[0088] When the outdoor ambient temperature is lower than the third temperature value, which is lower than the second temperature value, control the air conditioner 10 to switch to electric heating for heating. That is to say, when the outdoor ambient temperature is relatively low, the air conditioner 10 exits the heating mode using the indoor-side heat exchanger and switches to the heating mode using electric heating.

[0089] In some other embodiments, a temperature sensor is provided in the water receiving tank 310 to obtain the water temperature in the water receiving tank 310. When the water temperature is greater than or equal to the preset water temperature value, control the heater to stop working; when the water temperature is less than the preset water temperature value, control the heater to heat.

[0090] In some embodiments, as Figure 10 and Figure 11 shown, the control method of the air conditioner 10 according to the embodiments of the present invention further includes the following steps:

[0091] S300. When entering the defrost mode, obtain the outdoor ambient temperature value. The outdoor ambient temperature value can be obtained by using a temperature sensor, where the temperature sensor can be provided on the outer surface of the outdoor part of the outer casing 100.

[0092] S400. Obtain the defrost temperature value and / or control the heating tape 400 according to the outdoor ambient temperature value; where the defrost temperature value is negatively correlated with the outdoor ambient temperature value. That is to say, the lower the outdoor ambient temperature value, the higher the defrost temperature value that the outdoor-side heat exchanger 200 needs to reach. Thus, when defrosting the outdoor-side heat exchanger 200 according to the defrost temperature value, the generated defrost water remains in a liquid state during the process of flowing through the water outlet structure 360.

[0093] S500. Defrost the outdoor-side heat exchanger 200 according to the defrost temperature value. When the air conditioner 10 is defrosting, control the compressor to increase the frequency, turn off the fan, and reduce the amount of refrigerant entering the compressor. Thus, when the air conditioner 10 is defrosting, the frost on the outdoor-side heat exchanger 200 can be quickly melted by the high-temperature and high-pressure exhaust gas at a higher temperature.

[0094] The control method of the air conditioner 10 according to the embodiments of the present invention adjusts the defrost temperature value of the indoor-side heat exchanger according to the outdoor ambient temperature value, so as to ensure that the defrost water can flow through the water receiving tank 310 and the water outlet structure 360 in sequence and then be smoothly discharged to the outside of the outer casing 100. And when the outdoor ambient temperature value is different, adjust the outdoor-side heat exchanger 200 to defrost at the corresponding defrost temperature value, saving energy and avoiding excessive heat waste.

[0095] For example, when the outdoor ambient temperature value is -14°C, the defrost temperature value is set to 10°C. Another example, when the outdoor ambient temperature value is -8°C, the defrost temperature value is set to 8°C; still another example, when the outdoor ambient temperature value is -2°C, the defrost temperature value is set to 6.5°C.

[0096] In some embodiments, such as Figure 10 and Figure 11 shown, the control method of the air conditioner 10 according to the embodiment of the present invention further includes the following steps:

[0097] S610. After defrosting the outdoor heat exchanger 200 for a first preset period according to the defrosting temperature value, obtain the temperature value of the outdoor heat exchanger 200 every second preset period; the second preset period is less than the first preset period.

[0098] S620. Determine whether the temperature value of the outdoor heat exchanger 200 is greater than or equal to the defrosting temperature value.

[0099] S630. If so, exit the defrosting mode.

[0100] That is to say, after the outdoor heat exchanger 200 is defrosted for a certain period of time, the temperature value of the outdoor heat exchanger 200 is detected. If the temperature value of the outdoor heat exchanger 200 does not reach the defrosting temperature value, the defrosting continues. Thus, not only can the frost on the outdoor heat exchanger 200 be completely melted, but also the outdoor heat exchanger 200 can sufficiently heat the defrosting water thereon to ensure that the defrosting water can be smoothly discharged from the outer cabinet 100.

[0101] In some embodiments, the control method of the air conditioner 10 according to the embodiment of the present invention further includes:

[0102] In the defrosting mode, when the outdoor ambient temperature value is less than or equal to the preset temperature value, control the heating device to heat the water in the water receiving tank 310. That is to say, when the outdoor ambient temperature is too low. For example, when the outdoor ambient temperature is -17°C, the heat released by the outdoor heat exchanger 200 alone may not be sufficient to keep the defrosting water in a liquid state when the defrosting water is discharged from the outer cabinet 100. At this time, the heating tape 400 is used to heat the defrosting water to ensure that the defrosting water can be smoothly discharged from the outer cabinet 100.

[0103] In some embodiments, before the air conditioner 10 of the present embodiment enters the defrosting mode, the following steps are further included:

[0104] After the air conditioner 10 enters the heating mode for a third preset period, obtain the outdoor ambient temperature value and the temperature value of the outdoor heat exchanger 200. If the difference between the outdoor ambient temperature value and the outdoor heat exchanger 200 is greater than the preset value (the preset value can be 3°C - 5°C), control the air conditioner 10 to exit the heating mode and switch to the defrosting mode. Thus, the air conditioner 10 of the present embodiment can enter the defrosting mode more precisely to defrost the outdoor heat exchanger 200 in a timely manner.

[0105] The air conditioner 10 according to an embodiment of the present invention further includes a memory, a processor, and a machine-executable program stored on the memory and running on the processor, and when the processor executes the machine-executable program, it implements the control method of the air conditioner 10 according to any one of the above embodiments.

[0106] The flowchart provided in this embodiment is not intended to indicate that the operations of the method will be executed in any specific order, or that all operations of the method are included in every case. In addition, the method may include additional operations. Within the scope of the technical idea provided by the method in this embodiment, additional changes may be made to the above method.

[0107] It should be understood that in some embodiments, each part may be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods may be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system.

[0108] This embodiment also provides a computer program product, a computer-readable storage medium, and a computer device. The computer program product includes a computer program, and when the computer program is executed by a processor, it implements the steps of the control method of the air conditioner 10 according to any one of the above. The computer-readable storage medium stores the above computer program, and when the computer program is executed by a processor, it implements the steps of the management method of the data table with large object columns according to any one of the above embodiments. The computer device may include a memory, a processor, and a computer program stored on the memory and running on the processor.

[0109] A computer program for performing the operations of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, configuration data of an integrated circuit, or source code or object code written in any combination of one or more programming languages and procedural programming languages. The computer program may be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the latter case, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider via the Internet). In some embodiments, in order to perform aspects of the present invention, an electronic circuit, including, for example, a programmable logic circuit, a field-programmable gate array (FPGA), or a programmable logic array (PLA), may execute computer-readable program instructions by utilizing the state information of the computer-readable program instructions to personalize the electronic circuit.

[0110] For the description of this embodiment, a computer program product is a related product containing a computer program.

[0111] For the description of this embodiment, a computer-readable storage medium is a tangible device capable of retaining and storing a computer program, which may be any device that can contain, store, communicate, propagate, or be used in conjunction with a computer program for an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of the computer-readable storage medium include the following: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital versatile disc (DVD), memory stick, floppy disk, mechanically encoded device, and any suitable combination of the above.

[0112] A computer device can be, for example, a server, a desktop computer, a laptop computer, a tablet computer, or a smartphone. In some examples, the computer device can be a cloud computing node. The computer device can be described in the general context of computer system executable instructions, such as program modules, executed by a computer system. Generally, program modules can include routines, programs, object programs, components, logic, data structures, etc. that perform specific tasks or implement specific abstract data types. The computer device can be implemented in a distributed cloud computing environment where tasks are performed by remote processing devices linked through a communication network. In the distributed cloud computing environment, program modules can be located on local or remote computing system storage media including storage devices.

[0113] The computer device can include a processor adapted to execute stored instructions and a memory that provides temporary storage space for the operation of the instructions during operation. The processor can be a single-core processor, a multi-core processor, a computing cluster, or any number of other configurations. The memory can include random access memory (RAM), read-only memory, flash memory, or any other suitable storage system.

[0114] The computer device can also include a network adapter / interface and an input / output (I / O) interface. The I / O interface allows input and output of data with external devices that can be connected to the computer device. The network adapter / interface can provide communication between the computer device and a network, typically shown as a communication network.

[0115] At this point, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention can still be directly determined or derived from the disclosed content of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and construed to cover all such other variations or modifications.

[0116] At this point, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention can still be directly determined or derived from the disclosed content of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and construed to cover all such other variations or modifications. At this point, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention can still be directly determined or derived from the disclosed content of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and construed to cover all such other variations or modifications.

Claims

1. An air conditioner, characterized in that, Comprising: Outer box body; Outdoor heat exchanger, disposed within the outer box body; Chassis, at least a part of the chassis is disposed within the outer box body and is located below the chassis. A water receiving groove for receiving condensed water condensed by the outdoor heat exchanger and a water outlet structure communicating with the water receiving groove are provided on the chassis; the water outlet structure extends out of the outer box body to discharge water in the water receiving groove outside the outer box body.

2. The air conditioner according to claim 1, wherein The water outlet structure is a switching valve; Through holes are provided on the side wall of the water receiving groove; the water outlet structure is disposed at the through holes.

3. The air conditioner according to claim 2, wherein A water collecting groove section and a drainage groove section are sequentially connected on the bottom surface of the water receiving groove; the through holes are provided on the drainage groove section; the groove depth of the water collecting groove section is less than the groove depth of the drainage groove section.

4. The air conditioner according to claim 3, wherein The water collecting groove section extends along the length direction of the water receiving groove; The ratio of the dimension of the water collecting groove section in the length direction of the water receiving groove to the length dimension of the water receiving groove is 1 / 2 to 5 / 6; and / or, The drainage groove section extends along the width direction of the water collecting groove and is connected to the outside of one end of the drainage groove section.

5. The air conditioner according to claim 3, wherein The minimum distance between the water inlet of the water outlet structure and the bottom wall surface of the drainage groove section is less than or equal to 1 mm; The bottommost end of the water inlet of the water outlet structure is 1 mm to 3 mm lower than the bottom wall surface of the water collecting groove section.

6. The air conditioner according to claim 3, wherein Further comprising: Heating belt, disposed in the water receiving groove for heating the water in the water receiving groove.

7. The air conditioner according to claim 2, wherein The outer box body has a horizontally outward open end, and a flanging extending upward is provided at the lower edge of the open end; a first through hole is provided on the flanging; The through holes and the first through hole are correspondingly arranged, and the water outlet structure passes through the first through hole and extends out of the outer box body; and / or, The air conditioner further comprises a guide grille, the guide grille covers the open end; a second through hole is provided on the guide grille, the second through hole corresponds to the first through hole, and the water outlet structure sequentially passes through the first through hole and the second through hole.

8. A control method for an air conditioner according to any one of claims 1-7, characterized in that, Comprising: When entering the defrosting mode, obtaining the outdoor ambient temperature value; Obtaining a defrosting temperature value and / or controlling the heating belt according to the outdoor ambient temperature value; wherein, the defrosting temperature value is negatively correlated with the outdoor ambient temperature value; Defrosting the outdoor heat exchanger according to the defrosting temperature value.

9. The control method of the air conditioner according to claim 8, characterized in that, Further comprising: After defrosting the outdoor heat exchanger according to the defrosting temperature value for a first preset time period, obtaining the temperature value of the outdoor heat exchanger every second preset time period; The second preset time period is less than the first preset time period; If the temperature value of the outdoor heat exchanger is greater than or equal to the defrosting temperature value, then exit the defrosting mode.

10. The control method of the air conditioner according to claim 9, characterized in that, Further comprising: When entering the heating mode, controlling the water outlet structure to open and obtaining the outdoor ambient temperature value; When the outdoor ambient temperature value is less than or equal to the first temperature value and greater than the second temperature value, control the heating tape to heat the water in the docking sink every third preset time interval; When the outdoor ambient temperature value is less than or equal to the second temperature value, control the heating tape to continuously heat the water in the docking sink.

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