CN106016455B - Air conditioner - Google Patents

Abstract

The present invention provides an air conditioner, comprising: the bottom shell is provided with an upper side and a lower side which are oppositely arranged, a first air duct and a second air duct which extend from the upper side to the lower side are arranged on the bottom shell, the first air duct is provided with a first upper air outlet and a first lower air outlet, the second air duct is provided with a second upper air outlet and a second lower air outlet, a first upper volute tongue is arranged at the first upper air outlet, a first lower volute tongue is arranged at the first lower air outlet, a second upper volute tongue is arranged at the second upper air outlet, and a second lower volute tongue is arranged at the second lower air outlet, wherein the two upper volute tongues respectively protrude in the direction deviating from each other, and the two lower volute tongues respectively protrude in the direction approaching each other; the two centrifugal fans are respectively arranged in the two air channels; the electrical box mounting part is arranged between the two upper volute tongues; the air duct cover plate is connected to the bottom shell, and a first wiring channel is arranged on the air duct cover plate. The air conditioner has simple wiring and strong reliability.

Description

Air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner.

Background

At present, a centrifugal fan is arranged in an air duct of an air conditioner, and in order to ensure the normal work of the centrifugal fan, a motor of the centrifugal fan needs to be connected with a circuit board, so that the motor is powered and the centrifugal fan is driven to work.

In the prior art, the circuit board of the air conditioner is generally arranged outside the air duct, the wiring between the motor of the centrifugal fan and the circuit board is complex, the interference with other parts of the air conditioner is easy to generate, the reliability is poor, and even potential safety hazards can be caused.

Disclosure of Invention

The invention aims to provide an air conditioner to solve the problems of complex wiring and poor reliability between a centrifugal fan motor and a circuit board in the prior art.

In order to achieve the above object, the present invention provides an air conditioner including: the bottom shell is provided with an upper side and a lower side which are oppositely arranged, a first air duct and a second air duct which extend from the upper side to the lower side are arranged on the bottom shell, the first air duct and the second air duct are symmetrically arranged, the first air duct is provided with a first upper air outlet corresponding to the upper side and a first lower air outlet corresponding to the lower side, the second air duct is provided with a second upper air outlet corresponding to the upper side and a second lower air outlet corresponding to the lower side, a first upper volute tongue is arranged at the first upper air outlet, a first lower volute tongue is arranged at the first lower air outlet, a second upper volute tongue is arranged at the second upper air outlet, a second lower volute tongue is arranged at the second lower air outlet, wherein the first upper volute tongue and the second upper volute tongue respectively protrude in a direction away from each other, and the first lower volute tongue and the second lower volute tongue respectively protrude in a direction toward each other; the first centrifugal fan is arranged in the first air duct; the second centrifugal fan is arranged in the second air duct; the air conditioner further comprises an air duct cover plate connected to the bottom shell, wherein a first wiring channel is arranged on the air duct cover plate and is arranged on one side, far away from the bottom shell, of the air duct cover plate.

Further, the first centrifugal fan and the second centrifugal fan are located between the bottom shell and the air duct cover plate, and the air duct cover plate is provided with a first flow guide opening corresponding to the first centrifugal fan and a second flow guide opening corresponding to the second centrifugal fan.

Further, still include the electrical apparatus box installation department, first walk the line passageway with the inner chamber intercommunication of electrical apparatus box installation department.

Furthermore, the first wiring channel is a first wiring groove, and the first wiring groove is a split structure detachably arranged on the air duct cover plate.

Furthermore, the first wiring channel comprises a strong current slot and a weak current slot, and a partition plate is arranged between the strong current slot and the weak current slot for partition.

Furthermore, the partition plate is provided with a wiring notch.

Furthermore, an avoiding notch is formed in the position, corresponding to the electric appliance box mounting part, of the air duct cover plate.

Furthermore, an air duct wall between the first centrifugal fan and the second centrifugal fan is arranged on the bottom shell, a second routing channel is arranged in the air duct wall, a third routing channel is arranged between the bottom shell and the first centrifugal fan corresponding to the air duct wall, a fourth routing channel is arranged between the bottom shell and the second centrifugal fan corresponding to the air duct wall, and the second routing channel is respectively communicated with the third routing channel and the fourth routing channel.

Further, the second routing channel is a second routing groove, the third routing channel is a third routing groove, and the fourth routing channel is a fourth routing groove.

Furthermore, slots are formed in one ends, far away from the second wiring groove, of the third wiring groove and the fourth wiring groove.

Furthermore, a positioning column and a screw column are arranged at one end, close to the second wiring groove, of each of the third wiring groove and the fourth wiring groove.

Furthermore, a first cover plate is arranged on the third wiring groove, and a second cover plate is arranged on the fourth wiring groove.

Furthermore, a first connecting portion is arranged at the first end of the first cover plate, a second connecting portion is arranged at the second end of the first cover plate, a third connecting portion is arranged at the first end of the second cover plate, and a fourth connecting portion is arranged at the second end of the second cover plate.

Furthermore, the first connecting portion and the third connecting portion are provided with screw holes, the first connecting portion is matched with the positioning column and the screw column on the third wiring groove, and the third connecting portion is matched with the positioning column and the screw column on the fourth wiring groove.

Further, second connecting portion and fourth connecting portion are the inserted sheet to the slot on second connecting portion and the third trough cooperatees, and the slot on fourth connecting portion and the fourth trough cooperatees.

Furthermore, the air duct cover plate is provided with an upper side and a lower side which are oppositely arranged, the first wiring channel is arranged on the upper side of the air duct cover plate, and the first wiring channel extends towards the length direction of two sides of the air conditioner.

Furthermore, one side of the first cover plate facing the bottom shell is provided with a first wire accommodating groove, and one side of the second cover plate facing the bottom shell is provided with a second wire accommodating groove.

According to the technical scheme, the bottom shell is provided with a first air duct and a second air duct which extend from the upper side to the lower side, the first air duct is provided with a first upper air outlet corresponding to the upper side and a first lower air outlet corresponding to the lower side, the second air duct is provided with a second upper air outlet corresponding to the upper side and a second lower air outlet corresponding to the lower side, a first upper volute tongue is arranged at the first upper air outlet, a first lower volute tongue is arranged at the first lower air outlet, a second upper volute tongue is arranged at the second upper air outlet, and a second lower volute tongue is arranged at the second lower air outlet. An electrical box mounting part is arranged between the first upper volute tongue and the second upper volute tongue. The electric appliance box mounting part is provided with an electric appliance box which is provided with electric appliance elements such as a circuit board, and motor lines of the first centrifugal fan and the second centrifugal fan can be connected with the electric appliance elements such as the circuit board, so that power supply for the motors of the first centrifugal fan and the second centrifugal fan is realized. The wiring is simple and the reliability is strong. Especially, the wind channel cover plate is connected on the bottom shell, and the first wiring channel is arranged on the wind channel cover plate, so that the circuit arrangement is more regular, the interference of electric wires and other parts is effectively prevented, and the electrical safety is further ensured. Meanwhile, in the application, the electric appliance box mounting part is arranged in the cavity formed between the first upper volute tongue and the second upper volute tongue, so that the use space of the bottom shell is effectively utilized, the internal structure of the air conditioner is more compact, and the air conditioner is thinner.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an exploded view schematically illustrating an air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic perspective view illustrating a bottom case of an air conditioner according to an embodiment of the present invention;

FIG. 3 shows an enlarged schematic view of the structure at P of FIG. 2;

fig. 4 is a schematic front view illustrating a bottom case of an air conditioner according to an embodiment of the present invention;

fig. 5 is a schematic structural view illustrating a bottom case of an air conditioner and a motor mounted on the bottom case according to an embodiment of the present invention;

fig. 6 is a schematic structural view illustrating a bottom case of an air conditioner and a centrifugal fan mounted on the bottom case according to an embodiment of the present invention;

FIG. 7 shows an exploded view of FIG. 6;

fig. 7a is a schematic structural view illustrating a centrifugal impeller of a centrifugal fan of an air conditioner according to an embodiment of the present invention;

fig. 8 is an exploded view illustrating a bottom case of an air conditioner and a centrifugal fan mounted on the bottom case according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram illustrating a duct cover and an electrical box of an air conditioner according to an embodiment of the present invention;

fig. 10 is a schematic structural view illustrating a duct cover plate of an air conditioner according to an embodiment of the present invention;

FIG. 11 is an enlarged partial schematic view of FIG. 10;

fig. 12 is a schematic structural view illustrating a first cover plate of an air conditioner according to an embodiment of the present invention;

fig. 13 is a schematic structural view illustrating a second cover plate of an air conditioner according to an embodiment of the present invention;

fig. 14 is a schematic structural view illustrating a bottom case and a duct cover of an air conditioner according to an embodiment of the present invention;

fig. 15 is a schematic structural view illustrating a bottom case, a duct cover, and a centrifugal fan of an air conditioner according to an embodiment of the present invention after being mounted together;

FIG. 16 shows a schematic cross-sectional view at A-A in FIG. 15;

FIG. 17 shows an enlarged schematic view of the structure at M in FIG. 16;

FIG. 18 is an enlarged partial schematic view of FIG. 16;

fig. 19 is a schematic structural view illustrating an evaporator and a base of an air conditioner according to an embodiment of the present invention;

FIG. 20 shows a schematic cross-sectional view at B-B in FIG. 19;

FIG. 20a shows an enlarged schematic view at C in FIG. 20;

fig. 21 is an exploded view schematically illustrating a panel body and a front panel of an air conditioner according to an embodiment of the present invention;

fig. 22 is a schematic view illustrating a driving structure and a structure of a grill of an air conditioner according to an embodiment of the present invention;

fig. 23 is a schematic structural view showing an air conditioner (front panel not pushed out) according to an embodiment of the present invention;

fig. 24 is a schematic structural view showing an air conditioner (with a front panel pushed out) according to an embodiment of the present invention;

FIG. 25 shows a cross-sectional structural schematic of FIG. 24;

fig. 26 is a schematic perspective view showing an air conditioner (with a front panel pushed out) according to an embodiment of the present invention;

fig. 27 is a flowchart illustrating a startup procedure of an embodiment of a control method of an air conditioner according to an embodiment of the present invention; and

fig. 28 shows a flow diagram of the shutdown step of the embodiment of the control method of fig. 27.

Wherein the figures include the following reference numerals:

1. a bottom case; 11. an air duct; 11a, a first side wall; 11b, a second side wall; 111. a first air duct; 112. a second air duct; 121. an upper air outlet; 122. a lower air outlet; 1211. a first upper air outlet; 1212. a second upper air outlet; 1221. a first lower air outlet; 1222. a second lower air outlet; 13. an electrical box mounting section; 131. an electrical box; 1321. a second routing channel; 1322. a third routing channel; 1323. a fourth routing channel; 133. a first cover plate; 1331. a first connection portion; 1332. a second connecting portion; 134. a second cover plate; 1341. a third connecting portion; 1342. a fourth connecting portion; 14. a heat dissipation hole of the motor; 151. a first upper volute tongue; 152. a second upper volute tongue; 153. a first lower volute tongue; 154. a second lower volute tongue; 16. a wind sweeping mechanism; 161. a first upper wind sweeping mechanism; 162. a second upper wind sweeping mechanism; 163. a first lower wind sweeping mechanism; 164. a second lower air sweeping mechanism; 171. an upper air deflector; 173. a lower air deflector; 181. the bottom surface of the air duct; 1821. installing the bottom surface of the groove; 1822. installing the side wall of the groove; 2. an air duct cover plate; 21. a flow guide port; 211. a first flow guide port; 212. a second flow guide port; 22. a first routing channel; 221. a partition plate; 2211. a wiring gap; 222. avoiding the notch; 23. a drive cartridge; 24. an air leakage prevention groove; 25. supporting ribs; 26. a vertical plate; 3. a centrifugal fan; 3a, a first centrifugal fan; 3b, a second centrifugal fan; 31. a centrifugal impeller; 311. a hub; 3111. a vent hole; 312. a wind shielding convex edge; 32. a motor gland; 321. a first cover body; 322. a connecting flange; 323. a reinforcing structure; 33. a fan motor; 313. a leaf plate; 314. a flow guide ring; 4. an evaporator; 5. a base; 51. a placing groove; 52. a bearing table; 53. supporting a vertical plate; 54. a water conduit; 6. a front panel; 61. an upper inlet; 62. a lower air inlet; 63. a side air inlet; 7. a panel body; 71. a baffle plate accommodating groove; 73. an air inlet grille; 74. a frame; 75. a filter screen; 76. a drive mechanism; 81. an upper air inlet baffle plate; 82. a lower air inlet baffle plate; 9. an air outlet baffle plate; 91. an upper air outlet baffle; 92. a lower air outlet baffle; 93. a stepping motor; 94. a stopper step surface; 95. a second avoidance groove; 96. and a gasket.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, 9 and 24, the air conditioner of the present embodiment includes: bottom shell 1, centrifugal fan 3, wind channel apron 2, evaporimeter 4, panel body 7, front panel 6, last air inlet baffle 81, lower air inlet baffle 82 and the air-out baffle 9 that set gradually. The above structures will be described one by one.

As shown in fig. 2 to 8 and 25, the bottom case 1 has an upper side and a lower side which are opposite to each other, an air duct 11 extending from the upper side to the lower side is disposed on the bottom case 1, the air duct 11 has an upper air outlet 121 corresponding to the upper side and a lower air outlet 122 corresponding to the lower side, an upper air deflector 171 and an upper air sweeping mechanism are disposed at the upper air outlet 121, and a lower air deflector 173 and a lower air sweeping mechanism are disposed at the lower air outlet 122. The upper outlet 121 is upwardly discharged and the lower outlet 122 is downwardly discharged. The upper outlet 121 is provided with an upper air deflector 171 and an upper air sweeping mechanism, and the lower outlet 122 is provided with a lower air deflector 173 and a lower air sweeping mechanism. Like this, the user can be adjusted by last air outlet 121 and/or lower air outlet 122 air-out according to actual need, and then has improved the range of adjusting the air-out direction to user's comfort level has been improved. The bottom case 1 has a motor heat dissipation hole 14, and the specific structure and function of the motor heat dissipation hole 14 will be described in detail later.

As shown in fig. 9 and 10, the duct cover 2 has a diversion port 21 communicating with the duct 11. The specific structure and function of the duct cover 2 will be described in detail later.

As shown in fig. 1, 7a and 8, the centrifugal fan 3 is disposed in the air duct. The centrifugal fan 3 includes a fan motor 33 and a centrifugal impeller 31 driven by the fan motor 33, and the centrifugal impeller 31 has a blade plate 313. The specific structure and positional relationship of the centrifugal fan 3 will be described in detail later.

As shown in fig. 1, the evaporator 4 is disposed on a side of the centrifugal fan 3 away from the bottom case 1. In this embodiment, the evaporator 4 is provided with all the diversion ports 21. Or in other embodiments, one evaporator is disposed in each diversion opening 21.

As shown in fig. 1, 24 and 26, the front panel 6 is movably disposed on the bottom case 1, the front panel 6 preferably has an open position away from the bottom case 1 and a closed position close to the bottom case 1, and the air inlet is formed between the front panel 6 and the bottom case 1 when the front panel 6 is in the open position. The air inlet comprises an upper air inlet 61, a lower air inlet 62 and a side air inlet 63 arranged between the upper air inlet 61 and the lower air inlet 62. Further, an upper intake opening 61 and a lower intake opening 62 are formed between the duct cover 2 and the front panel 6. Preferably, the front panel 6 is adjustably connected to the position of the duct cover 2. Because the front panel 6 is connected with the air duct cover plate 2 in an adjustable position, the size of the air inlet can be adjusted by changing the distance between the front panel 6 and the air duct cover plate 2, so that the air conditioner has the characteristic of adjustable air inlet volume in unit time, and the heat exchange reliability of the air conditioner is optimized. The front panel 6 is movably disposed on the bottom case 1, so that the thickness of the air conditioner is reduced, and the air conditioner is more slim. Of course, the front panel 6 may also be fixedly disposed on the bottom case 1, and an air inlet is formed between the front panel 6 and the bottom case 1. The panel body 7 includes a frame and a filter screen 75 covered on the frame 74. The air conditioner indoor unit can be prevented from being hindered from normal operation by impurities entering the air conditioner indoor unit, and the probability of failure of the air conditioner indoor unit can be reduced.

As shown in fig. 24, the upper intake baffle 81 is correspondingly disposed at the upper intake opening 61 and is used for shielding or opening the upper intake opening 61. The lower air intake baffle 82 is correspondingly disposed at the lower air intake 62 and is used for shielding or opening the lower air intake 62. When the air conditioner is in the upper air-out state, the upper air inlet baffle 81 shields the upper air inlet 61, and when the air conditioner is in the lower air-out state, the lower air inlet baffle 82 shields the lower air inlet 62. Because the upper air inlet baffle 81 and the lower air inlet baffle 82 are arranged, when the air outlet corresponding to the air inlet baffle is used for exhausting air, the air exhaust backflow can be effectively avoided by closing the corresponding air inlet baffle, so that the heat exchange effect of the air conditioner is effectively improved, the energy efficiency of the air conditioner can be obviously improved, and the air conditioner has the characteristics of low energy consumption and good operation performance. The specific structure and connection relationship of the upper intake damper 81 and the lower intake damper 82 will be described in detail later.

As shown in fig. 9, 16, 18 and 25, each air outlet is correspondingly provided with a pivotable air outlet baffle 9, and each air outlet baffle 9 has a first position for avoiding the air duct 11 and a second position for closing the corresponding air outlet. The user can adjust by which air outlet air-out according to actual need, has improved the range of adjusting the air-out direction to user's comfort level has been improved. In this embodiment, the air outlet baffle includes upper air outlet baffle 91 and lower air outlet baffle 92, and upper air outlet baffle 91 corresponds the setting with last air outlet 121, and lower air outlet baffle 92 corresponds the setting with lower air outlet 122, and upper air outlet 121 or seal upper air outlet 121 can be dodged through the pivot to upper air outlet baffle 91, and lower air outlet 122 or seal lower air outlet 122 can be dodged through the pivot to lower air outlet baffle 92. The above structure can close the upper air outlet 121 or the lower air outlet 122 according to the user's requirement. When the air conditioner is in the upper air outlet state, in this state, the lower air outlet baffle 92 pivots to the position for closing the lower air outlet 122, the upper air outlet baffle 91 is located at the position for avoiding the upper air outlet 121, and at this time, the air conditioner only exhausts air through the upper air outlet 121. Similarly, the air may be discharged through the lower outlet 122 only or through the upper outlet 121 and the lower outlet 122 simultaneously. The specific structure and connection relationship of the air outlet baffle 9 will be described in detail later.

The specific structure and function of the motor heat dissipation hole 14 will be described in detail below.

As shown in fig. 2 and 8, the bottom case 1 has a motor heat dissipation hole 14 at a position corresponding to the fan motor 33. Because motor louvre 14 sets up on drain pan 1, that is to say adopt the radiating mode in drain pan 1 one side to make fan motor 33's heat energy pass through motor louvre 14 on the drain pan 1 and be discharged, therefore make no matter the air conditioner is in under the mode of heating or refrigerating, all can guarantee fan motor 33's radiating effect, the radiating influence of mode conversion to fan motor 33 has been eliminated, thereby effectively improved fan motor 33's radiating reliability, the radiating stability of fan motor 33 has been guaranteed, and then make fan motor 33's operating temperature reduce, high working efficiency, low energy consumption, long service life.

The air duct 11 is formed in the bottom case 1, the air conditioner further comprises a motor gland 32 for isolating the shell of the fan motor 33 from the air duct 11, and the motor gland 32 is covered outside the fan motor 33 and connected with the bottom case 1. Because the motor gland 32 is covered outside the fan motor 33, i.e. the fan motor 33 is isolated from the air duct 11, the temperature of the air in the air duct 11 does not affect the fan motor 33, and the heat dissipation reliability of the fan motor 33 is ensured through the motor heat dissipation holes 14 on the bottom case 1, thereby ensuring the stability of the operating temperature of the fan motor 33.

In the preferred embodiment shown in fig. 8, the motor cover 32 includes a first cover 321 and a connecting flange 322, the first cover 321 is fastened outside the housing of the blower motor 33, the connecting flange 322 is provided at the open end of the first cover 321, and the connecting flange 322 is surface-fitted to the bottom case 1. Due to the first cover 321, the fan motor 33 can be stably mounted on the bottom case 1, and the fan motor 33 is effectively isolated from the air duct 11, so that the operational reliability of the fan motor 33 is ensured. Since the connection flange 322 is provided, the reliability of the connection of the first cover 321 to the bottom case 1 is ensured. Meanwhile, the connecting flange 322 is matched with the surface of the bottom shell 1, so that the contact area of the connecting flange and the bottom shell is increased, and the local stress concentration is effectively reduced.

Preferably, the motor cover 32 further includes a reinforcing structure 323, and the reinforcing structure 323 is disposed on the first cover 321. Because the reinforcing structure 323 is arranged on the first cover body 321, the overall structural strength of the motor gland 32 is improved, and the use reliability of the motor gland 32 is effectively improved.

As shown in fig. 8, the reinforcing structure 323 includes one or more reinforcing ribs extending from the center of the cover to the open end of the first cover 321, and the plurality of reinforcing ribs are spaced apart from each other. Of course, the reinforcing rib may also be annularly disposed on the first cover 321.

In a preferred embodiment, not shown, the air conditioner further includes a fan motor fixing bracket, the fan motor fixing bracket is pressed on the outside of the fan motor 33 and connected with the bottom case 1, and the fan motor fixing bracket is provided with a first ventilation structure. Because the motor heat dissipation holes 14 are formed in the bottom shell 1, even if wind in the air duct 11 influences the fan motor 33 through the first ventilation structure, heat on the fan motor 33 can be dissipated to the external environment through the motor heat dissipation holes 14, and therefore heat dissipation reliability and diversity of heat dissipation modes of the fan motor are guaranteed. Especially, in the cooling mode, the fan motor 33 is cooled by cold air in the air duct 11, so that overheating of the fan motor 33 is avoided, and the operation stability and reliability of the fan motor 33 are ensured.

Preferably, the air conditioner further comprises a second cover body, the second cover body is rotatably arranged on the fan motor fixing support, the second cover body is provided with a second ventilation structure, the second cover body is provided with a first working position and a second working position, and when the second cover body is located at the first working position, the first ventilation structure is communicated with the second ventilation structure and enables the air duct 11 to be communicated with the fan motor 33; when the second cover body is in the second working position, the first ventilation structure and the second ventilation structure are arranged in a staggered mode so that the air duct 11 is isolated from the fan motor 33. Since the second cover body with the second ventilation structure is provided, the state switching of the isolation or communication between the fan motor 33 and the air duct 11 can be realized by changing the working position of the second cover body, so that the heat dissipation mode of the fan motor 33 can be selectively controlled when the air conditioner is in different modes.

Specifically, the air conditioner has two working modes including a cooling mode and a heating mode, and when the air conditioner is in the cooling mode, the second cover body is in a first working position; when the air conditioner is in a heating mode, the second cover body is in a second working position.

When the air conditioner is in the refrigeration mode, cold wind in the air duct 11 can play the effect of cooling to the fan motor 33 this moment to through the mode that the heat dissipation of drain pan 1 one side and cold wind heat dissipation combine together, guarantee that fan motor 33 is in normal operating condition.

When the air conditioner is in the mode of heating, the temperature of fan motor 33 can be further improved to hot-blast in wind channel 11 this moment, just need keep apart fan motor 33 and wind channel 11 this moment, avoid hot-blast influence to fan motor 33 to make fan motor 33 only dispel the heat through motor louvre 14 on the drain pan 1, in order to guarantee that fan motor 33 is in normal operating condition.

As shown in fig. 2 and 3, the motor heat dissipation hole 14 has a kidney-shaped hole or a circular shape. When the motor heat dissipation holes 14 are waist-shaped holes, compared with the circular motor heat dissipation holes 14, the opening area of the motor heat dissipation holes 14 can be effectively increased, and therefore the heat dissipation effect of the motor heat dissipation holes 14 is improved.

Of course, the motor heat dissipation holes 14 may also be arranged in a polygonal, elliptical or irregular geometric shape, etc.

In the preferred embodiment shown in fig. 2 and 3, the number of the motor heat dissipation holes 14 is multiple, the multiple motor heat dissipation holes 14 are arranged at intervals along the circumferential direction of the fan motor 33, and the long diameter of the kidney-shaped motor heat dissipation hole 14 is arranged along the radial direction of the fan motor 33. Because the number of the motor heat dissipation holes 14 is multiple, the heat dissipation efficiency of the fan motor 33 can be effectively improved, and the heat dissipation reliability of the air conditioner is ensured. When the major diameter of the motor heat dissipation hole 14 in the shape of the waist is arranged along the radial direction of the fan motor 33, the sufficient heat dissipation area can be ensured, the uniformity of the heat dissipation effect of the fan motor 33 is good, the local overheating of the fan motor 33 is avoided, and the operation reliability of the fan motor 33 is improved.

Preferably, the air conditioner further includes a centrifugal impeller 31, a hub 311 of the centrifugal impeller 31 is of a closed arc structure, and the hub 311 of the centrifugal impeller 31 covers the outside of the fan motor 33 to reduce the communication area between the air duct 11 and the fan motor 33. Because the hub 311 of the centrifugal impeller 31 is of a closed arc structure, the communication area between the air duct 11 and the fan motor 33 can be reduced by the self-isolation function of the centrifugal impeller 31, so that the influence of the temperature of the air in the air duct 11 on the fan motor 33 is reduced, and the operation reliability of the fan motor 33 is ensured.

Of course, in another preferred embodiment, the air conditioner further includes a centrifugal impeller 31, and the hub 311 of the centrifugal impeller 31 has a vent hole 3111. Because the hub 311 of the centrifugal impeller 31 has the vent 3111, the communication area between the air duct 11 and the fan motor 33 is increased, and when the air conditioner is in a cooling mode, cold air in the air duct 11 can also cool the fan motor 33, thereby improving the heat dissipation reliability of the fan motor 33.

The specific structure and function of the duct cover 2 will be described in detail below.

As shown in fig. 9, a vertical plate 26 extending along a side of the air duct 11 is disposed on a side of the air duct cover 2 facing the bottom case 1, and the vertical plate 26 overlaps with a side wall of the air duct 11. The vertical plate 26 is overlapped and abutted with the side wall of the air duct 11, so as to prevent the air leakage of the air duct 11. The side of the air duct cover plate 2 far away from the bottom shell 1 is provided with a support rib 25 for supporting the evaporator. Because the supporting ribs 25 are arranged, the installation reliability of the evaporator is ensured, the contact area between the evaporator and the air duct cover plate 2 is increased, the evaporator is effectively prevented from shaking and vibrating, and the setting stability and the operation reliability of the evaporator are improved. As shown in fig. 14 and 16, the support ribs 25 are located in the middle of the duct cover 2. Preferably, the support rib 25 is located between the two diversion ports 21. Because the quality of evaporimeter is heavier, the volume is great, therefore sets up brace 25 in the middle part of wind channel apron 2 and can strengthen the overall structure intensity of wind channel apron 2 when guaranteeing placing the reliability of evaporimeter to improve the operational reliability and the stability of air conditioner.

The specific structure and positional relationship of the centrifugal fan 3 will be described in detail below.

As shown in fig. 4 to 7, 16, and 17, the bottom case 1 has an air duct bottom surface 181 and a mounting groove for mounting the centrifugal fan 3, the air duct bottom surface 181 is located at the circumferential outer side of the mounting groove, the fan motor 33 is disposed in the mounting groove, and the blade plate 313 is higher than or flush with the air duct bottom surface 181.

The air conditioner includes a bottom case 1 and a centrifugal fan 3. An air duct and an air outlet which are matched with the centrifugal fan 3 are arranged on the bottom shell 1, and the centrifugal fan 3 is arranged in the air duct. The air conditioner of this embodiment adopts centrifugal fan 3, and this centrifugal fan 3 is for the cross-flow fan blade of prior art, and the size in the thickness direction of air conditioner is thinner, can reduce the thickness of air conditioner like this effectively. Meanwhile, the bottom shell 1 is provided with a mounting groove for mounting the centrifugal fan 3, and the thickness of the air conditioner can be further reduced due to the arrangement of the mounting groove, so that the air conditioner is thinner. In the present application, the centrifugal fan 3 has a blade plate 313, the bottom case 1 has a duct bottom surface 181 located on the circumferential outer side of the mounting groove, and the blade plate 313 protrudes from the duct bottom surface 181. The centrifugal fan 3 blows out the wind from the upper part of the blade plate 313 when the wind is out, the wind leaving the blade plate 313 reaches the bottom surface 181 of the wind channel, and the blade plate 313 protrudes out of the bottom surface 181 of the wind channel to make the resistance of the blade plate 313 to the wind smaller, thereby ensuring that the air conditioner can reach a larger wind output. According to the air conditioner, the air outlet quantity is effectively guaranteed while the problem of thickness is solved, and the user experience is better.

In one embodiment, the mounting groove includes a mounting groove bottom surface 1821 and mounting groove sidewalls 1822, the mounting groove sidewalls 1822 extending gradually from the mounting groove bottom surface 1821 to the air chute bottom surface 181. The structure enables the air outlet resistance to be smaller, and further the air outlet quantity is better ensured.

As shown in fig. 17, in the first embodiment, the generatrix of the mounting groove sidewall 1822 forms an acute angle α with the mounting groove bottom surface 1821. The structure is convenient to process, manufacture, install and overhaul, and meanwhile, the structure can ensure that the air outlet resistance is small.

The acute included angle is preferably in the range of 40 ° to 50 °. As shown in fig. 17, in this embodiment, the included angle α between the generatrix of the mounting groove sidewall 1822 and the mounting groove bottom surface 1821 is 45 °, which is simple to manufacture, easy to implement, and is beneficial to providing a cushioning effect on the direction of air flow.

As shown in fig. 15 and 16, in the first embodiment, the diameter of the bottom surface 1821 of the mounting groove is larger than the outer diameter of the centrifugal fan 3. This ensures smooth revolving movement of the centrifugal fan 3 in the space in which it is located.

As shown in fig. 15, in the first embodiment, two air ducts are provided, two air ducts are arranged side by side, and two centrifugal fans 3 corresponding to the air ducts are also provided. Two air ducts and corresponding centrifugal fans 3. Therefore, on one hand, the air outlet quantity can be ensured, and on the other hand, the occupied space of the air conditioner is not increased much. Of course, the number of the air ducts and the number of the centrifugal fans 3 may be three or more as required.

As shown in fig. 1 and 7, the fan is preferably a centrifugal fan. The centrifugal fan includes: a deflector ring 314; the blade plate 313 is arranged at an interval with the guide ring 314, a bulge protruding towards the direction of the guide ring 314 is formed on the blade plate 313, and a motor accommodating cavity is formed in the bulge; and the plurality of fan blades are all arranged between the guide ring 314 and the blade body plate 313 and are arranged along the circumferential direction of the protrusion.

The middle part of the blade plate 313 forms a bulge protruding towards the guide ring 314, a motor accommodating cavity with an opening positioned on the surface of the blade plate 313 back to the guide ring 314 is formed on the bulge, the plurality of blades are uniformly arranged in the circumferential direction of the bulge, and the motor is arranged between the guide ring 314 and the blade plate 313, so that the thickness of the indoor unit of the air conditioner is reduced, and further, the space occupied by the air conditioner is reduced.

The specific structure and connection relationship of the upper intake air baffle 81 and the lower intake air baffle 82 will be described in detail below.

As shown in fig. 23 to 25, specifically, the upper intake air baffle 81 and the lower intake air baffle 82 have the following operating states: when the upper air outlet 121 and the lower air outlet 122 both let air out, the upper air inlet baffle 81 and the lower air inlet baffle 82 respectively shield the upper air inlet 61 and the lower air inlet 62; and/or when only the upper air outlet 121 is exhausted, only the upper air inlet baffle 81 shields the upper air inlet 61; and/or when only the lower air outlet 122 is exhausted, only the lower air inlet baffle 82 shields the lower air inlet 62.

It should be noted here that while preventing the backflow of the exhaust air, it is also necessary to ensure that the air conditioner has a sufficient intake air amount, otherwise the heat exchange effect and energy efficiency of the air conditioner are also reduced. Therefore, the air conditioner of the present invention closes the upper intake baffle 81 and the lower intake baffle 82 simultaneously only when the air exits from both the upper outlet 121 and the lower outlet 122, otherwise the intake baffles corresponding to the discharged air can be selectively closed. And when the upper air outlet 121 and the lower air outlet 122 are both closed, the air inlet needs to be ensured by the side air inlet 63.

An upper air intake baffle 81 and a lower air intake baffle 82 are reversibly disposed between the front panel 6 and the duct cover 2. Because the upper air inlet baffle 81 and the lower air inlet baffle 82 which can be turned over are arranged between the front panel 6 and the air duct cover plate 2, the air return prevention requirements of different air outlet modes can be met by controlling the working states of the upper air inlet baffle 81 and the lower air inlet baffle 82.

As shown in fig. 22, the air conditioner of this embodiment further includes a driving mechanism 76, the front panel 6 is in driving connection with the driving mechanism 76, and the driving mechanism 76 pushes the front panel 6 forward to form the air inlet. Since the air inlet can be formed by pushing the front panel 6 forward, the air inlet and outlet mode of the air conditioner is optimized. Both sides of the panel body 7 are provided with placement portions protruding in the direction of the bottom case 1, and the placement portions are provided with a drive mechanism 76. The arrangement part for placing the driving mechanism 76 is arranged in a protruding mode towards the bottom case 1, so that the thickness of the indoor unit of the air conditioner is favorably reduced, and the space is fully utilized.

Preferably, a first side of the upper intake flap 81 is pivotably connected to the front panel 6 or the duct cover 2, and a second side of the upper intake flap 81 is a free side. Since the upper intake damper 81 is pivotably connected to the front panel 6 and/or the duct cover 2, the operational reliability and storage reliability of the upper intake damper 81 are improved. And when the upper air inlet baffle 81 is in a retracted state and is not in a wind shield state, the upper air inlet baffle 81 can be arranged close to the air duct cover plate 2 or the front panel 6 so as to avoid the upper air inlet 61, thereby ensuring the air inlet reliability of the air conditioner.

Similarly, the connection relationship between the lower air inlet baffle 82 and the front panel 6 and/or the air duct cover 2 is similar to the connection relationship between the upper air inlet baffle 81 and the front panel 6 and/or the air duct cover 2, and is not described herein again.

In a specific embodiment, a first side of the upper air inlet baffle 81 is pivotally connected with the air duct cover plate 2, a surface of the front panel 6 facing the air duct cover plate 2 is provided with an air inlet sealing structure, and a second side of the upper air inlet baffle 81 is in sealing fit with the air inlet sealing structure. Due to the fact that the air inlet sealing structure matched with the second side of the upper air inlet baffle 81 in a sealing mode is arranged, the air return prevention reliability of the upper air inlet baffle 81 is guaranteed, and the backflow problem caused by air leakage is avoided. Of course, the front panel 6 may be provided with the above-mentioned air inlet sealing structure at a position corresponding to the lower air inlet baffle 82.

Preferably, the air inlet sealing structure comprises an air inlet sealing convex edge or an air inlet sealing step surface. When the air inlet sealing structure is an air inlet sealing convex ridge or an air inlet sealing step surface, when the upper air inlet baffle 81 is lapped on the air inlet sealing convex ridge or the air inlet sealing step surface, not only can the sealing effect be achieved, but also the limiting and stopping effects can be achieved on the upper air inlet baffle 81, so that the upper air inlet baffle 81 is effectively prevented from moving over, and the action reliability of the upper air inlet baffle 81 is further improved.

In another specific embodiment, a first side of the upper intake flap 81 is pivotally connected to the front panel 6, and a second side of the upper intake flap 81 is flipped toward the duct cover 2 side. Since the front panel 6 is an operating member, mounting the upper intake damper 81 on the front panel 6 increases the overall mass and operational load of the front panel 6.

As shown in fig. 21, in order to improve the storage reliability of the upper intake damper 81, the surface of the duct cover 2 facing the front panel 6 in the present invention has a damper housing groove 71, and the upper intake damper 81 can be housed in the damper housing groove 71. Because the air duct cover plate 2 is provided with the baffle accommodating groove 71 for accommodating the upper air inlet baffle 81, when the upper air inlet baffle 81 is folded to avoid the upper air inlet 61, the upper air inlet 61 can be completely opened without shielding, so that the air inlet volume of the air conditioner is ensured, and the energy efficiency of the air conditioner is ensured.

Similarly, the baffle-accommodating groove 71 can also be used for accommodating the lower intake baffle 82.

In the preferred embodiment shown in fig. 1 and 25, the air conditioner further includes a bottom case 1, an air duct cover 2, a panel body 7, and a front panel 6, an upper intake opening 61 and a lower intake opening 62 are formed between the panel body 7 and the front panel 6, and an upper intake damper 81 and a lower intake damper 82 are reversibly provided between the front panel 6 and the panel body 7. At this time, since the panel body 7 is sandwiched between the duct cover 2 and the front panel 6, when the front panel 6 moves, the air inlet should be formed between the panel body 7 and the front panel 6.

Preferably, the front panel 6 is adjustably connected with the position of the panel body 7. Because the front panel 6 is connected with the panel body 7 in an adjustable position, the size of the air inlet can be adjusted by changing the distance between the front panel and the panel body 7, so that the air conditioner has the characteristic of adjustable air inlet volume in unit time, and the heat exchange reliability of the air conditioner is optimized.

At this time, the first side of the upper intake damper 81 is pivotably connected to the front panel 6 and/or the panel body 7, and the second side of the upper intake damper 81 is a free side. Since the upper intake damper 81 is pivotably connected to the front panel 6 and/or the panel body 7, the operational reliability and storage reliability of the upper intake damper 81 are improved. And when the upper air inlet baffle 81 is in a retracted state and is not in a wind shield state, the upper air inlet baffle 81 can be arranged close to the panel body 7 or the front panel 6 so as to avoid the upper air inlet 61, thereby ensuring the air inlet reliability of the air conditioner.

Similarly, the connection relationship between the lower air intake baffle 82 and the front panel 6 and/or the panel body 7 is similar to the connection relationship between the upper air intake baffle 81 and the front panel 6 and/or the panel body 7, and is not described herein again.

In the preferred embodiment, a first side of the upper intake damper 81 is pivotably connected to the panel body 7, a surface of the front panel 6 facing the panel body 7 has an intake air sealing structure, and a second side of the upper intake damper 81 is in sealing engagement with the intake air sealing structure. Due to the fact that the air inlet sealing structure matched with the second side of the upper air inlet baffle 81 in a sealing mode is arranged, the air return prevention reliability of the upper air inlet baffle 81 is guaranteed, and the backflow problem caused by air leakage is avoided. Of course, the front panel 6 may be provided with the above-mentioned air inlet sealing structure at a position corresponding to the lower air inlet baffle 82.

Similarly, the air inlet sealing structure comprises an air inlet sealing convex edge or an air inlet sealing step surface.

Alternatively, the first side of the upper intake damper 81 is pivotably connected to the front panel 6, and the second side of the upper intake damper 81 is turnable toward the panel body 7 side.

As shown in fig. 24, in order to improve the storage reliability of the upper intake damper 81, the panel body 7 of the present invention has a damper housing groove 71 on the surface facing the front panel 6, and the upper intake damper 81 can be stored in the damper housing groove 71. Because the panel body 7 is provided with the baffle accommodating groove 71 for accommodating the upper air inlet baffle 81, when the upper air inlet baffle 81 is folded to avoid the upper air inlet 61, the upper air inlet 61 can be completely opened without shielding, so that the air inlet volume of the air conditioner is ensured, and the energy efficiency of the air conditioner is ensured. Similarly, the baffle-accommodating groove 71 can also be used for accommodating the lower intake baffle 82.

The air conditioner of the present invention further includes an air inlet grill 73 provided at positions corresponding to the side air inlets 63 and the lower air inlets 62, respectively, and the air inlet grill 73 is connected to the driving mechanism 76 and/or the front panel 6 to move synchronously with the front panel 6. Due to the arrangement of the air inlet grille 73, the problem of accidental injury caused by the fact that hands touch the air inlet by mistake can be effectively solved, and therefore the use safety of the air conditioner is improved.

As shown in fig. 22, the air intake grille 73 is in the form of a louver. After the complete machine is installed on the wall, the internal structure details of the air conditioner can not be seen through the air inlet grille 73 from the angle of a user, and indoor air can enter the air conditioner through the air inlet grille 73 and exchange heat and adjust air.

In order to improve the storage reliability of the air-inlet grille 73, the panel body 7 is provided with a grille accommodating groove in which the air-inlet grille 73 can be stored.

The specific structure and connection relationship of the air outlet baffle 9 will be described in detail below.

As shown in fig. 16 and 18, the air outlet shutter 9 is driven by a stepping motor 93. The stepping motor 93 is a controllable motor, which is beneficial to solving the problem of not-in-place rotation.

A first side wall 11a of the duct 11 is formed by the duct cover 2, and a second side wall 11b of the duct 11 is formed by the bottom case 1.

Preferably, in the first position, the air outlet baffle 9 is attached to the first side wall 11a of the air duct 11. It is advantageous to avoid blocking the ventilation of the air duct 11.

Preferably, the wind tunnel 11 has a first side wall 11a and a second side wall 11b which are oppositely arranged, a first end of the wind outlet baffle 9 is pivotally connected to the first side wall 11a of the wind tunnel 11, and a second end of the wind outlet baffle 9 is matched with the second side wall 11b of the wind tunnel 11.

A rotating groove which provides a rotating space for the first end of the air outlet baffle plate 9 is formed on the first side wall 11a of the air duct 11, the first end of the air outlet baffle plate 9 is in closed fit with the groove wall of the rotating groove at the second position, and the second end of the air outlet baffle plate 9 is matched with the second side wall 11b of the air duct 11 to seal a corresponding air outlet.

Preferably, a first avoiding groove for accommodating the wind outlet baffle is formed on the first side wall 11a of the wind duct 11. At the first position, the air outlet baffle 9 is located in the first avoiding groove and attached to the first side wall 11a to avoid blocking the ventilation of the air outlet.

Preferably, the second side wall 11b of the air duct 11 is provided with a stop step surface 94, and the second end of the air outlet baffle 9 is matched with the stop step surface 94. At the second position, the second end of air outlet baffle 9 abuts against the stop step surface 94, so that the contact area is increased, and the sealing effect is improved.

Preferably, the stop step surface 94 faces away from the respective outlet opening 11. The stopping step surface 94 faces one side of the incoming wind, when the corresponding wind outlet is closed, the incoming wind drives the wind outlet baffle 9 to rotate towards the stopping step surface 94, and the pressure of the incoming wind in the wind channel 11 prompts the second end of the wind outlet baffle 9 to extrude the stopping step surface 94, which is beneficial to further improving the sealing effect.

Preferably, a second avoiding groove 95 for avoiding the second end of the air outlet baffle is formed on the second side wall 11b of the air duct 11, and a groove wall of the second avoiding groove 95 facing away from the air outlet forms a stopping step surface 94.

The second avoiding groove 95 is arc-shaped and is matched with the second end motion track of the air outlet baffle 9, and a stop step surface 94 is formed at the end point of the second end motion track of the air outlet baffle 9.

Preferably, a sealing gasket 96 is disposed between the wind outlet baffle 9 and the stopper step surface 94. Furthermore, the sealing effect is improved, and the air leakage phenomenon is prevented. The gasket 96 may be made of elastic material such as sponge or rubber.

One of the two outlets of the duct 11 is formed at an upper portion of the air conditioner, and the other is formed at a lower portion of the air conditioner. In the refrigeration mode, if the user does not like cold air to blow downwards directly, an upward air outlet can be selected; in the heating mode, if the user likes to blow hot air directly, the user can select a downward air outlet. The customer can adjust by which air outlet air-out according to oneself needs.

The air duct 11 has a first side wall 11a and a second side wall 11b which are oppositely arranged, the first side wall 11a of the air duct 11 has a first inclined air guiding surface close to the air outlet and/or the second side wall 11b has a second inclined air guiding surface close to the air outlet.

Preferably, the first side wall 11a has a first inclined air guiding surface, and the first inclined air guiding surface is inclined in a direction away from the wall; the second side wall 11b has a second inclined air guiding surface inclined in a direction away from the wall. The first side wall and the second side wall are configured to incline the air outlet direction towards the direction deviating from the wall.

Preferably, the air conditioner includes two air ducts 11 arranged side by side. The air quantity of the heat exchange is improved, and the heat exchange efficiency is improved.

According to another aspect of the present invention, there is provided a method for controlling an outlet damper of an air conditioner, including: the air outlet baffle is driven to rotate by the stepping motor 93.

Preferably, the driving the rotation of the air outlet baffle by the stepping motor 93 comprises: the number of pulses output to the stepping motor 93 is larger than the calculated number of pulses required for the stepping motor.

The rotation amount of the stepping motor is in direct proportion to the received pulse number, the calculated pulse number required by the stepping motor is the required pulse number calculated according to the preset rotation amount of the required stepping motor 93 and based on the direct proportion relation, but the actual rotation amount of the stepping motor is often unmatched with the received pulse number, and in order to avoid the phenomenon that the air outlet baffle plate cannot rotate in place, the pulse number output to the stepping motor is larger than the calculated pulse number required by the stepping motor, so that the problem is solved.

In this embodiment, the air conditioner further includes an air leakage preventing structure. The structure and operation of the air leakage preventing structure will be described in detail below.

As shown in fig. 1 and 16, an air duct 11 is formed on the bottom case 1, an air duct cover plate 2 is matched with the bottom case 1 and covers the air duct 11, and the air duct cover plate 2 has a diversion port 21 communicated with the air duct 11; the centrifugal impeller 31 is arranged in the air duct 11 and corresponds to the diversion port 21, and a fit clearance is formed between the centrifugal impeller 31 and the air duct cover plate 2; the air leakage prevention structure is arranged at the matching gap to reduce the air leakage amount of the matching gap.

Because the air leakage prevention structure is arranged at the matching gap, the air leakage prevention structure plays an effective role in blocking the matching gap between the air leakage prevention structure and the air leakage prevention structure, avoids or reduces the overflow and scattering of the air inlet from the matching gap, ensures the reliability of the air inlet, ensures that enough air inlet volume can be blown into the centrifugal impeller 31, improves the energy efficiency and the heat exchange effect of the air conditioner, and effectively reduces the vibration and the noise caused by the disordered air flow. Because the generation of condensation is fundamentally avoided, the safety threat of the condensation on electric appliance parts is eliminated, the potential safety hazard is eliminated, and the operation reliability of the air conditioner is ensured.

As shown in fig. 16, the air leakage preventing structure of the present invention includes an annular wind shielding convex edge 312, the wind shielding convex edge 312 is disposed on the centrifugal impeller 31 and extends toward the wind channel cover plate 2, and the inner diameter of the annular wind shielding convex edge 312 is larger than the diameter of the diversion port 21. Because the centrifugal impeller 31 is provided with the wind shielding convex edge 312 extending towards the side of the air duct cover plate 2, the matching gap is partially shielded, thereby reducing the width of the wind leakage gap and the wind leakage rate, and further improving the effective wind inlet rate and the wind inlet reliability of the air conditioner.

In the embodiment shown in fig. 16, the wind shielding ledge 312 is located at the inner periphery of the upper surface of the flow guide ring of the centrifugal impeller 31. The wind shielding convex edge 312 is positioned at the inner periphery of the guide ring of the centrifugal impeller 31, so that the air can be prevented from overflowing and leaking at the first time, and the wind leakage prevention effect is optimized.

Of course, the wind shielding convex edge 312 may be disposed at a portion between the inner ring and the outer ring of the centrifugal impeller 31, or directly disposed at the outer ring side of the centrifugal impeller 31, so that although the wind shielding convex edge may also play a role of preventing wind leakage, a part of wind volume inevitably generates vortex in a space between the wind shielding convex edge 312 and the inner ring side of the centrifugal impeller 31, which is likely to cause airflow turbulence, and is likely to aggravate vibration and noise of the air conditioner.

Preferably, the air leakage preventing structure comprises an air leakage preventing groove 24 disposed on the air duct cover plate 2, and the wind shielding convex edge 312 is embedded in the air leakage preventing groove 24 and is in clearance fit with the air leakage preventing groove 24 (see fig. 16). Because the wind shielding convex edge 312 is embedded in the wind leakage preventing groove 24, triple shielding is formed in the wind leakage direction, the wind overflow and dispersion path is prolonged, and the flexibility of the overflow and dispersion path is increased, so that wind is not easy to overflow and leak from the matching gap, and the wind leakage prevention reliability between the centrifugal impeller 31 and the air duct cover plate 2 is ensured.

Further, the groove wall surface of the air leakage preventing groove 24 is a cambered surface. The wall of the air leakage preventing groove 24 is cambered, so that the air can flow along the air guide surface with smooth radian when the air is scattered, thereby avoiding stress concentration or vortex and effectively reducing the vibration and noise of the air conditioner.

The air leakage preventing structure comprises an air leakage preventing convex edge which is a flange extending from the diversion port 21 of the air duct cover plate 2 to one side of the air duct 11. Because the wind flows from the wind channel cover plate 2 to the centrifugal impeller 31 side, the anti-leakage convex edge can play an effective wind guiding role, so that the wind can be smoothly poured into the centrifugal impeller 31 under the action of the anti-leakage convex edge. The air leakage preventing convex edge extends from the air duct cover plate 2 to the centrifugal impeller 31 side, so that the matching gap is partially shielded, the width of an air leakage gap and the air leakage quantity are reduced, and the effective air inlet quantity and the air inlet reliability of the air conditioner are improved.

When the wind-proof convex edge is embedded into the inner side of the diversion opening 21 and further extends to one side of the centrifugal impeller 31, the opening direction of the wind-proof gap is changed, and preferably, the wind-proof convex edge is positioned at the periphery of the diversion opening 21 and extends to the inner ring side of the centrifugal impeller 31 so that the opening direction of the wind-proof gap is deviated from the wind inlet direction of the diversion opening 21. When the opening direction in the air leakage gap deviates from the air inlet direction of the flow guide opening 21, the incoming air in the air inlet direction is directly blown into the centrifugal impeller 31 at the moment, and the air inlet direction is difficult to change into the opening in the air leakage gap, so that the air leakage amount between the centrifugal impeller 31 and the air duct cover plate 2 is effectively reduced, and the energy efficiency and the heat exchange effect of the air conditioner are ensured.

In order to further improve the air leakage prevention effect, the air leakage prevention convex edge is annular, and the air leakage prevention convex edge is positioned on the inner ring side of the air blocking convex edge 312. Because the wind shielding convex edge 312 and the wind leakage preventing convex edge are arranged at the same time, double wind leakage preventing protection is formed, and the wind leakage amount is further reduced. Because the wind-proof convex edge has the function of guiding wind at the same time, when the wind-proof convex edge is contacted with the inlet wind before the wind-shielding convex edge 312, the wind-proof effect can be optimized, so that the wind channel cover plate 2 plays a certain role of coating and sealing the centrifugal impeller 31.

Of course, the wind shielding convex edge 312 and the wind leaking convex edge may be sequentially arranged at intervals along the wind leaking direction. However, the air conditioner thus configured has a relatively poor air leakage prevention effect.

The invention has a plurality of flow guide openings 21, a plurality of air leakage preventing structures, a plurality of centrifugal impellers 31, and a plurality of centrifugal impellers 31, a plurality of flow guide openings 21 and a plurality of air leakage preventing structures which are arranged in one-to-one correspondence with one another. The air leakage preventing structure is arranged at each flow guide opening 21, so that the integral air leakage preventing performance of the air conditioner is ensured. In the preferred embodiment shown in fig. 10, there are two diversion ports 21, and the above-mentioned wind leakage preventing structure is correspondingly arranged at each of the two diversion ports 21.

Preferably, the air duct 11 is plural, the plural air ducts 11 are arranged independently of each other, and the plural air ducts 11 are arranged in one-to-one correspondence with the plural centrifugal impellers 31. Because a plurality of wind channels 11 set up each other independently, therefore effectively avoid a plurality of centrifugal impeller 31 to cause the air current chaotic when moving, improved the air-out reliability of air conditioner.

In order to further improve the energy efficiency and the control diversity of the air conditioner, the number of the evaporators is multiple, and the evaporators and the diversion ports 21 are arranged in a one-to-one correspondence mode. The quality of a single evaporator is reduced due to the use of a plurality of evaporators, so that the installation convenience of the air conditioner is improved, and when the single evaporator fails, only the single evaporator needs to be maintained and replaced, so that the maintenance complexity and the maintenance cost are reduced, and the service life of the air conditioner is prolonged. In addition, the running power of the air conditioner can be adjusted by controlling the operation of a single evaporator or a part of evaporators so as to meet different use requirements.

Preferably, the evaporator is circular and is shaped to conform to the shape of the flow guide opening 21. Because the shape of the evaporator is set to be matched with the shape of the diversion port 21, each part on the evaporator has the characteristic of good running performance consistency, and the heat exchange efficiency of each part of the evaporator is uniform. In addition, the circular evaporator can effectively improve the heat exchange efficiency, improve the energy efficiency grade of the air conditioner, reduce the power consumption, save materials, reduce the cost waste and reduce the occupied space.

It should be noted that, in order to ensure the uniformity of refrigerant flow velocity, pressure drop in the tube, and temperature distribution of each part in the evaporator, the tube diameter and sheet pitch need to be designed according to the combination of the refrigerant flow velocity of different flow paths, the pressure drop in the tube, and the wind speed distribution on the surface of the evaporator. The high-efficiency heat exchange is realized by adopting the combined design of different pipe diameters and different sheet distances. In addition, for convenient processing and manufacturing, the U pipe of the evaporator is arranged on the same side, and the pipeline on the other side is subjected to processes such as welding and the like.

In the present embodiment, the air duct 11 includes a first air duct 111 and a second air duct 112 extending from the upper side to the lower side. The dual duct arrangement and the function of the first and second air ducts 111 and 112 will be described in detail below.

As shown in fig. 4 and 24, the first air duct 111 and the second air duct 112 are symmetrically disposed, wherein the first air duct 111 has a first upper air outlet 1211 corresponding to an upper side and a first lower air outlet 1221 corresponding to a lower side, and the second air duct 112 has a second upper air outlet 1212 corresponding to the lower side and a second lower air outlet 1222 corresponding to the lower side. The first upper air outlet 1211 and the second upper air outlet 1212 constitute an upper air outlet 121, and the first lower air outlet 1221 and the second lower air outlet 1222 constitute a lower air outlet 122.

As shown in fig. 4, the first upper air outlet 1211 is provided with a first upper volute tongue 151, the first lower air outlet 1221 is provided with a first lower volute tongue 153, the second upper air outlet 1212 is provided with a second upper volute tongue 152, and the second lower air outlet 1222 is provided with a second lower volute tongue 154. Specifically, the first and second lower volute tongues 153 and 154 protrude in a direction to approach each other, and the first and second upper volute tongues 151 and 152 protrude in a direction to depart from each other. The air conditioner of the present embodiment further includes a first centrifugal fan 3a and a second centrifugal fan 3b, wherein the first centrifugal fan 3a is disposed in the first air duct 111, and the second centrifugal fan 3b is disposed in the second air duct 112.

In the present application, the first and second lower volute tongues 153 and 154 protrude in a direction to approach each other, and the first and second upper volute tongues 151 and 152 protrude in a direction to depart from each other, respectively. The arrangement direction of the first lower volute tongue 153 and the second lower volute tongue 154 determines that the air outlet direction of the first air duct 111 at the first lower air outlet 1221 and the air outlet direction of the second air duct 112 at the second lower air outlet 1222 are converged. Thus, when the air conditioner is in a heating state, hot air can flow out from the first lower air outlet 1221 and the second lower air outlet 1222 of the air conditioner, and the hot air flowing out from the first air duct 111 and the hot air flowing out from the second air duct 112 can be gathered together, so that the heating effect is improved, and the heating performance of the air conditioner is improved. Meanwhile, since the density of the hot air is slightly low, the hot air is blown out from the first lower air outlet 1221 and the second lower air outlet 1222 of the air conditioner and then slowly rises, so that an indoor whole thermal cycle can be formed, and the temperature comfort is good. Therefore, the technical scheme of the embodiment can solve the problem that the heating speed of the air conditioner in the prior art is low.

In addition, when the air conditioning is cold, the cold air can be discharged from the first upper air outlet 1211 and the second upper air outlet 1212. The cold air is discharged upwards to avoid directly blowing to the human body, and the cold air gradually sinks due to the high density of the low-temperature air, so that the refrigerating speed is increased. Therefore, the air conditioner of the embodiment has the characteristics of good refrigeration effect and high human body comfort level.

The air conditioner of the present embodiment has four outlets, i.e., a first upper outlet 1211, a first lower outlet 1221, a second upper outlet 1212, and a second lower outlet 1222. As a preferred embodiment, an air outlet baffle may be provided at each air outlet. Therefore, air outlet control of the air outlet can be carried out according to the requirements of users. Specifically, when the air conditioner is used for cooling or heating, the four air outlets can be opened simultaneously, so that the air outlet volume is maximized. Of course, in view of comfort, the first upper air outlet 1211 and the second upper air outlet 1212 may be closed by the air outlet shutter during heating, so that the hot air is blown out from only the first lower air outlet 1221 and the second lower air outlet 1222. The first lower air outlet 1221 and the second lower air outlet 1222 may be closed by the air outlet baffle during cooling, so that the hot air is blown out from only the first upper air outlet 1211 and the second upper air outlet 1212.

As shown in fig. 4, in the solution of the present embodiment, the first upper volute tongue 151 and the second upper volute tongue 152 are respectively disposed on the inner walls of the first upper air outlet 1211 and the second upper air outlet 1212, which are close to each other, and the first lower volute tongue 153 and the second lower volute tongue 154 are respectively disposed on the inner walls of the first lower air outlet 1221 and the second lower air outlet 1222, which are away from each other. Meanwhile, the distance between the first upper volute tongue 151 and the second upper volute tongue 152 is smaller than the distance between the first lower volute tongue 153 and the second lower volute tongue 154. The above structure makes the first upper air outlet 1211, the second upper air outlet 1212, the first lower air outlet 1221 and the second lower air outlet 1222 have a larger size, thereby effectively ensuring the air output.

As shown in fig. 6, in the solution of the present embodiment, the vane rotation direction of the first centrifugal fan 3a is opposite to the vane rotation direction of the second centrifugal fan 3 b. Specifically, when the first centrifugal fan 3a and the second centrifugal fan 3b of the air conditioner work, the first centrifugal fan 3a and the second centrifugal fan 3b respectively drive the air flow and generate a certain impact force to the air conditioner. By arranging the rotation direction of the blades of the first centrifugal fan 3a and the rotation direction of the blades of the second centrifugal fan 3b to be opposite, the impact force generated to the air conditioner when the first centrifugal fan 3a works and the impact force generated to the air conditioner when the second centrifugal fan 3b works can be opposite in direction. Therefore, the air conditioner can be stressed uniformly, operates stably, and can effectively reduce noise.

Preferably, when the air conditioner is operated, the rotation direction of the first centrifugal fan 3a and the rotation direction of the second centrifugal fan 3b are opposite, so that the impact force generated by the first centrifugal fan 3a and the second centrifugal fan 3b to the air conditioner is offset.

As shown in fig. 7, in the solution of the present embodiment, the air conditioner further includes a first upper air-sweeping mechanism 161 and a second upper air-sweeping mechanism 162, and the first upper air-sweeping mechanism 161 and the second upper air-sweeping mechanism 162 form an upper air-sweeping mechanism. The first upper air sweeping mechanism 161 is located at the first upper air outlet 1211, and the second upper air sweeping mechanism 162 is located at the second upper air outlet 1212. The first upper air sweeping mechanism 161 and the second upper air sweeping mechanism 162 are used for changing the air outlet direction, so that the air outlet directions of the first upper air outlet 1211 and the second upper air outlet 1212 are more flexible.

Specifically, by controlling the directions of the first upper wind sweeping mechanism 161 and the second upper wind sweeping mechanism 162, the first upper wind sweeping mechanism 161 and the second upper wind sweeping mechanism 162 selectively have the following working states:

the first upper wind sweeping mechanism 161 and the second upper wind sweeping mechanism 162 are guided to the same side;

the first upper wind sweeping mechanism 161 and the second upper wind sweeping mechanism 162 are guided to converge inward;

the first updraft mechanism 161 and the second updraft mechanism 162 are both guided to be spread outward.

When the air conditioner works, any one of the working states can be selected. Therefore, the air outlet direction is more flexible, and the requirements of temperature adjustment in different environments are met.

Preferably, the first upper air-sweeping mechanism 161 and the second upper air-sweeping mechanism 162 are controlled separately, so that the above three operating states are more easily realized.

As shown in fig. 7, in the present embodiment, the air conditioner further includes a first lower wind sweeping mechanism 163 and a second lower wind sweeping mechanism 164, and the first lower wind sweeping mechanism 163 and the second lower wind sweeping mechanism 164 form a lower wind sweeping mechanism. The first lower air sweeping mechanism 163 is located at the first lower air outlet 1221, and the second lower air sweeping mechanism 164 is located at the second lower air outlet 1222. The first lower air sweeping mechanism 163 and the second lower air sweeping mechanism 164 are used to change the air outlet direction, so that the air outlet directions of the first lower air outlet 1221 and the second lower air outlet 1222 are more flexible.

Specifically, by controlling the directions of the first lower sweeping mechanism 163 and the second lower sweeping mechanism 164, the first lower sweeping mechanism 163 and the second lower sweeping mechanism 164 selectively have the following working states:

the first lower sweeping mechanism 163 and the second lower sweeping mechanism 164 are guided to the same side;

the first lower wind sweeping mechanism 163 and the second lower wind sweeping mechanism 164 are guided to converge inward;

the first lower air sweeping mechanism 163 and the second lower air sweeping mechanism 164 are both guided to be spread outward.

When the air conditioner works, any one of the working states can be selected. Therefore, the air outlet direction is more flexible, and the requirements of temperature adjustment in different environments are met.

Preferably, the first lower wind sweeping mechanism 163 and the second lower wind sweeping mechanism 164 are controlled separately, so that the above three operation states are more easily realized.

In this embodiment, the air conditioner further includes an electrical box mounting portion 13, and the specific structure and connection relationship of the electrical box mounting portion 13 will be described in detail below. The electrical box mounting part 13 is disposed between the first upper volute tongue 151 and the second upper volute tongue 152. Be provided with the electrical apparatus box 131 that is equipped with the circuit board in this electrical apparatus box installation department 13, the motor line of first centrifugal fan 3a and second centrifugal fan 3b can be connected with above-mentioned circuit board to the realization is the motor power supply of first centrifugal fan 3a and second centrifugal fan 3b, and the aforesaid is walked the line simply, and the good reliability. Meanwhile, in the present application, the electrical box mounting part 13 is disposed in the cavity formed between the first upper volute tongue 151 and the second upper volute tongue 152, so that the use space of the bottom case 1 is effectively utilized, thereby making the internal structure of the air conditioner more compact and making the air conditioner more slim.

In the present embodiment, the electrical components disposed in the electrical box 131 are circuit boards, and in another embodiment not shown in the drawings, other electrical components capable of supplying power to the motor of the centrifugal fan may be disposed in the electrical box 131 according to specific needs.

As shown in fig. 5 and 10, in the air conditioner of the present embodiment, the air conditioner further includes an air duct cover plate 2 connected to the bottom case 1, the first centrifugal fan 3a and the second centrifugal fan 3b are located between the bottom case 1 and the air duct cover plate 2, and the air duct cover plate 2 has a first diversion opening 211 corresponding to the first centrifugal fan 3a and a second diversion opening 212 corresponding to the second centrifugal fan 3 b. The first diversion opening 211 and the second diversion opening 212 of the air duct cover plate 2 can respectively guide the air flow passing through the first centrifugal fan 3a and the second centrifugal fan 3 b. In addition, the duct cover 2 separates the bottom case 1 from other components (an evaporator in this embodiment) of the air conditioner, enhancing the mounting stability of the first centrifugal fan 3a and the second centrifugal fan 3 b.

As shown in fig. 1, 5 and 10, in the air conditioner of this embodiment, a first routing channel 22 is disposed on the air duct cover plate 2, the first routing channel 22 is disposed on a side of the air duct cover plate 2 away from the bottom case 1, and the first routing channel 22 is communicated with an inner cavity of the electrical box mounting portion 13. In the present embodiment, a driving box 23 is provided on the right side edge of the duct cover 2, and electric components such as a driving power supply are provided in the driving box 23. The electric wire connected from the driving power supply can extend into the inner cavity of the electrical box mounting part 13 through the first wiring channel 22, and is connected and conducted with the circuit board in the electrical box 131, so as to supply power to the circuit board, and further drive the first centrifugal fan 3a and the second centrifugal fan 3b to work. Meanwhile, the first routing channel 22 can make the line arrangement more regular, thereby effectively preventing the electric wire from interfering with other components and ensuring the electrical safety. It should be noted that the driving box 23 is not limited to be disposed on the right side of the duct cover 2, and in other embodiments not shown in the drawings, the driving box 23 may be disposed at other positions of the duct cover 2, for example, on the left side of the duct cover 2, and in the above case, the first routing channel 22 is correspondingly disposed on the left side of the duct cover 2.

As shown in fig. 10 and 11, in the air conditioner of the present embodiment, the first routing channel 22 is a first routing groove. The first wiring groove is simple in structure and easy to machine and manufacture. Of course, the first routing channel 22 is not limited to a routing slot, and in other embodiments not shown in the drawings, other routing structures may be provided, for example, the routing slot may be provided.

As shown in fig. 10 and 11, in the air conditioner of the present embodiment, the first cabling duct includes a strong current duct and a weak current duct, and a partition 221 is provided between the strong current duct and the weak current duct to partition them. The structure can lead the strong current line and the weak current line to be separately arranged, and prevent the strong current line and the weak current line from generating electromagnetic interference.

As shown in fig. 10 and 11, in the air conditioner of the present embodiment, the partition 221 is provided with a wiring cutout 2211. The structure enables the electric wire to be more conveniently arranged, and is favorable for improving the wiring efficiency.

It should be noted that, in this embodiment, the first cabling channel is a split structure detachably disposed on the air duct cover plate 2, and cabling channels with different lengths or different shapes may be selected according to the specific requirements of cabling. Of course, the first routing groove is not limited to the above-described separate structure, and in another embodiment not shown in the drawings, the first routing groove and the duct cover 2 may be provided as an integral structure.

As shown in fig. 10, in the air conditioner of the present embodiment, an escape notch 222 is formed in the air duct cover 2 at a position corresponding to the electrical box mounting portion 13. The above structure can prevent the air duct cover plate 2 from interfering with the bottom case 1 when being installed.

As shown in fig. 4 and 5, in the air conditioner of this embodiment, an air duct wall is disposed on the bottom shell 1 and located between the first centrifugal fan 3a and the second centrifugal fan 3b, a second routing channel 1321 is disposed in the air duct wall, a third routing channel 1322 is disposed between the bottom shell 1 and the first centrifugal fan 3a corresponding to the air duct wall, a fourth routing channel 1323 is disposed between the bottom shell 1 and the second centrifugal fan 3b corresponding to the air duct wall, and the second routing channel 1321 is respectively communicated with the third routing channel 1322 and the fourth routing channel 1323. The second trace channel 1321 is communicated with the inner cavity of the electrical box mounting portion 13.

When the air conditioner is assembled, the motor line of the first centrifugal fan 3a extends to the inner cavity of the electrical box installation part 13 through the third wire channel 1322 and the second wire channel 1321, and is connected and conducted with the circuit board in the electrical box 131, so that power supply for the motor of the first centrifugal fan 3a is realized, and the first centrifugal fan 3a is driven to rotate. Similarly, the motor line of the second centrifugal fan 3b extends to the inner cavity of the electrical box installation part 13 through the fourth wire channel 1323 and the second wire channel 1321, and is connected and conducted with the circuit board in the electrical box 131, so as to supply power to the motor of the second centrifugal fan 3b and drive the second centrifugal fan 3b to rotate. Meanwhile, the wiring channel can enable the circuit arrangement to be more regular, so that the motor wire is effectively prevented from interfering with other components, and the electrical safety is guaranteed.

As shown in fig. 4 and 5, in the air conditioner of this embodiment, the second wire channel 1321 is a second wire slot, the third wire channel 1322 is a third wire slot, and the fourth wire channel 1323 is a fourth wire slot. The second wiring groove, the third wiring groove and the fourth wiring groove are simple in structure and easy to machine and manufacture. Of course, the second routing channel 1321, the third routing channel 1322 and the fourth routing channel 1323 are not limited to the routing slots, and in other embodiments not shown in the drawings, other routing structures may be adopted, for example, the routing channels may be configured as routing holes.

As shown in fig. 5, in the air conditioner of the present embodiment, a first cover 133 is provided on the third wiring duct, and a second cover 134 is provided on the fourth wiring duct. The structure can prevent the motor wires in the third wire distributing groove and the fourth wire distributing groove from being exposed, thereby ensuring that the wire bodies are not scraped when the fan blades of the centrifugal fan rotate and preventing the motor wires from being damaged. Meanwhile, the integrity of the air duct can be ensured, and abnormal noise is not generated in the air duct.

As shown in fig. 5, 12 and 13, in the air conditioner of the present embodiment, a first connection portion 1331 is provided at a first end of the first cover plate 133, a second connection portion 1332 is provided at a second end of the first cover plate 133, a third connection portion 1341 is provided at a first end of the second cover plate 134, and a fourth connection portion 1342 is provided at a second end of the second cover plate 134. The first cover plate 133 is provided with a first wire receiving groove at a side facing the bottom case 1, and the second cover plate 134 is provided with a second wire receiving groove at a side facing the bottom case 1.

In this embodiment, the third wire trough and the fourth wire trough are provided with a positioning column and a screw column at one end close to the second wire trough, and the third wire trough and the fourth wire trough are provided with slots at one end far away from the second wire trough. Screw holes are formed in the first connecting portion 1331 and the third connecting portion 1341, the first connecting portion 1331 is matched with a positioning column and a screw column on the third wiring groove, and the third connecting portion 1341 is matched with a positioning column and a screw column on the fourth wiring groove. Second connecting portion 1332 and fourth connecting portion 1342 are inserts, and second connecting portion 1332 matches with the slot on the third trough, and fourth connecting portion 1342 matches with the slot on the fourth trough. The above structure facilitates the assembly and disassembly between the first cover plate 133 and the second cover plate 134 and the bottom case 1. Of course, the structures of the first cover plate 133 and the second cover plate 134 are not limited to this, and in other embodiments not shown in the drawings, the first cover plate 133 and the second cover plate 134 may have other structures capable of achieving a fixing function.

In the present embodiment, the air duct cover 2 covers two air ducts 11, specifically, the first air duct 111 and the second air duct 112. The duct cover 2 has two diversion ports 21, and the two diversion ports 21 include a first diversion port 211 corresponding to the first duct 111 and a second diversion port 212 corresponding to the second duct 112. The first centrifugal fan 3a is disposed in the first air duct 111 and opposite to the first diversion port 211, and the second centrifugal fan 3b is disposed in the second air duct 112 and opposite to the second diversion port 212. Evaporator 4 sets up in the one side of keeping away from drain pan 1 of wind channel apron 2, and every water conservancy diversion mouth 21 all sets up with evaporator 4 relatively. In this embodiment, the air conditioner indoor unit has a plurality of air channels 11, a centrifugal fan 3 is arranged in each air channel 11, and the plurality of centrifugal fans 3 are used for heat exchange between the evaporator 4 and the external environment, so that the problem that air conditioner refrigeration is restricted due to insufficient air volume in the prior art is solved.

Preferably, the evaporator 4 is superposed on the air duct cover 2 and is located on a side of the air duct cover 2 facing away from the bottom case 1. The air duct 11 is formed between the air duct cover plate 2 and the bottom case 1 and extends along the air duct cover plate 2, and the flow guide opening 21 is formed on the air duct cover plate 2 and faces the evaporator 4.

As shown in fig. 19, 20 and 20a, the air conditioner of the present embodiment further includes a base 5 for carrying the evaporator 4, the base 5 is provided with a placement groove 51 adapted to the evaporator 4, a bearing table 52 for the evaporator 4 is provided on a side wall of the placement groove 51, and the bearing table 52 is provided with a drainage groove. A supporting vertical plate 53 for supporting the heat exchange unit is arranged in the placing groove 51, and the supporting vertical plate 53 comprises a plurality of supporting plate sections arranged at intervals. The interval between two adjacent supporting plate sections is used for the flow of condensate water to avoid the water level of local condensate water to be too high.

As shown in fig. 19 and 20, a drain opening is provided in the installation groove 51, and a water conduit 54 for guiding the condensed water to the outside of the indoor unit of the air conditioner is connected to the drain opening. The platform 52 is provided with a plurality of drainage grooves along the evaporator 4 for smoothly guiding the condensed water to the bottom of the placing groove 51 so as to be uniformly guided to the outside of the indoor unit of the air conditioner. The base 5 is connected to the air duct cover plate 2 and is located on one side of the air duct cover plate 2 back to the bottom shell 1. The base 5 can be integrally formed with the air duct cover plate 2 or can be arranged in a split mode. The evaporator 4 includes: the evaporator comprises an evaporator body and a bottom frame. The bottom frame is arranged below the evaporator body, and a plurality of drain holes are formed in the bottom frame. The condensed water produced on the evaporator body flows into the placing groove 51 of the base 5 arranged below the evaporator body through the drainage hole, and then is guided to the outside of the indoor unit of the air conditioner through the water conduit 54. Preferably, the plurality of drainage holes are divided into a plurality of rows of drainage holes, and the drainage holes of two adjacent rows are arranged in a staggered manner. The distance between two adjacent drain holes in the direction of the drain holes is shortened, and the smooth drainage of condensed water is facilitated.

The air conditioner of the embodiment further comprises a display connected with the electric appliance box, and the display is used for displaying parameters such as the working state and the indoor temperature of the indoor unit of the air conditioner.

The application also provides a control method of the air conditioner, which is used for controlling the air conditioner. As shown in fig. 27, the control method according to the present embodiment includes a power-on step and a power-off step, wherein the power-on step includes the following steps:

step S10: pushing the front panel 6 outwards in a direction away from the bottom shell 1 to move the front panel 6 from the closed position to the open position;

step S30: the upper air deflector 171 and/or the lower air deflector 173 are opened;

step S40: rotating the centrifugal fan 3;

step S60: the upper wind sweeping mechanism and/or the lower wind sweeping mechanism are/is moved.

In the present embodiment, the above-mentioned step S10, step S30, step S40 and step S60 are performed in this order. Of course, those skilled in the art will recognize that, as an alternative embodiment, step S30 and step S40 may be performed simultaneously.

As shown in fig. 27, in the present embodiment, the following steps are further included between step S10 and step S30:

step S20: the upper intake damper 81 is pivoted to close the upper intake opening 61 and/or the lower intake damper 82 is pivoted to close the lower intake opening 62 according to the air-out state of the upper and lower air outlets 121 and 122.

Of course, those skilled in the art will recognize that, as an alternative embodiment, the above step S20 may also be performed between step S40 and step S60.

As shown in fig. 27, in the present embodiment, the following steps are further included between step S40 and step S60:

step S50: the upper air-out flap 91 is pivoted to close the upper air outlet 121 or the lower air-out flap 92 is pivoted to close the lower air outlet 122 according to the air-out states of the upper air outlet and the lower air outlet.

It is to be noted that when step S20 is performed between step S40 and step S60, step S20 needs to be performed before step S50.

By applying the control method of the embodiment, the front panel 6 is moved first, so that other moving parts can be avoided effectively, and the thinnest thickness of the air conditioner can be ensured. In addition, the upper air deflector 171 and/or the lower air deflector 173 move before the upper wind sweeping mechanism and/or the lower wind sweeping mechanism, so that the moving mechanisms can be prevented from being interfered with each other, and the overall size of the air conditioner is reduced.

As shown in fig. 28, in the present embodiment, the shutdown step includes the steps of:

step S100: stopping the rotation of the centrifugal fan 3;

step S300: stopping the upper wind sweeping mechanism and/or the lower wind sweeping mechanism;

step S500: closing the upper deflector 171 and/or the lower deflector 173;

step S600: the front panel 6 is retracted inward in a direction toward the bottom case 1, and the front panel 6 is moved from the open position to the closed position.

As shown in fig. 28, in the present embodiment, the following steps are further included between step S300 and step S500:

step S400: the upper intake air baffle 81 is pivoted to a position clear of the upper intake opening 61 and/or the lower intake air baffle 82 is pivoted to a position clear of the lower intake opening 62.

As shown in fig. 28, in the present embodiment, the following steps are further included between step S100 and step S300:

step S200: the upper wind outlet baffle 91 is pivoted to a position avoiding the upper wind inlet 61, and/or the lower wind outlet baffle 92 is pivoted to a position avoiding the lower wind inlet 62.

By applying the control method of the present embodiment, the upper wind sweeping means and/or the lower wind sweeping means stops moving before the upper wind deflector 171 and/or the lower wind deflector 173 stops moving, and finally the front panel 6 is collected. This ensures that there is no interference between the moving mechanisms.

Of course, those skilled in the art will recognize that, as an alternative embodiment, step S200, step S300, step S400, and step S500 may be performed simultaneously. Alternatively, only step S200 and step S300 are performed synchronously. Of course, to avoid interference, the air conditioners of the two embodiments are slightly larger in size.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. An air conditioner, comprising:

a bottom case (1) having an upper side and a lower side which are oppositely arranged, wherein a first air duct (111) and a second air duct (112) extending from the upper side to the lower side are arranged on the bottom case (1), the first air duct (111) and the second air duct (112) are symmetrically arranged, the first air duct (111) has a first upper air outlet (1211) corresponding to the upper side and a first lower air outlet (1221) corresponding to the lower side, the second air duct (112) has a second upper air outlet (1212) corresponding to the upper side and a second lower air outlet (1222) corresponding to the lower side, a first upper volute tongue (151) is arranged at the first upper air outlet (1211), a first lower volute tongue (153) is arranged at the first lower air outlet (1221), a second upper volute tongue (152) is arranged at the second upper air outlet (1212), and a second lower volute tongue (154) is arranged at the second lower air outlet (1222), wherein the first upper volute tongue (151) and the second upper volute tongue (152) respectively protrude in a direction away from each other, and the first lower volute tongue (153) and the second lower volute tongue (154) respectively protrude in a direction toward each other;

a first centrifugal fan (3a) disposed in the first air duct (111);

a second centrifugal fan (3b) arranged in the second air duct (112);

the air conditioner further comprises an air duct cover plate (2) connected to the bottom shell (1), a first wiring channel (22) is arranged on the air duct cover plate (2), and the first wiring channel (22) is arranged on one side, far away from the bottom shell (1), of the air duct cover plate (2);

an air duct wall is arranged on the bottom shell (1) and is positioned between the first centrifugal fan (3a) and the second centrifugal fan (3b), a second wiring channel (1321) is arranged in the air duct wall, a third wiring channel (1322) is arranged between the bottom shell (1) and the first centrifugal fan (3a) corresponding to the air duct wall, a fourth wiring channel (1323) is arranged between the bottom shell (1) and the second centrifugal fan (3b) corresponding to the air duct wall, and the second wiring channel (1321) is respectively communicated with the third wiring channel (1322) and the fourth wiring channel (1323);

the second routing channel (1321) is a second routing slot, the third routing channel (1322) is a third routing slot, and the fourth routing channel (1323) is a fourth routing slot; slots are formed in the third wiring groove and the fourth wiring groove at one ends far away from the second wiring groove; a first cover plate (133) is arranged on the third wiring groove, and a second cover plate (134) is arranged on the fourth wiring groove; a first connecting part (1331) is arranged at a first end of the first cover plate (133), a second connecting part (1332) is arranged at a second end of the first cover plate (133), a third connecting part (1341) is arranged at a first end of the second cover plate (134), and a fourth connecting part (1342) is arranged at a second end of the second cover plate (134);

the air conditioner further comprises a front panel (6), the front panel (6) is movably arranged on the bottom shell (1), the front panel (6) is provided with an opening position far away from the bottom shell (1) and a closing position close to the bottom shell (1), and when the front panel (6) is in the opening position, an air inlet is formed between the front panel (6) and the bottom shell (1).

2. The air conditioner according to claim 1, wherein the first centrifugal fan (3a) and the second centrifugal fan (3b) are located between the bottom case (1) and the air duct cover plate (2), and the air duct cover plate (2) has a first flow guide opening (211) corresponding to the first centrifugal fan (3a) and a second flow guide opening (212) corresponding to the second centrifugal fan (3 b).

3. The air conditioner as claimed in claim 2, further comprising an electrical box mounting part (13), wherein the first routing channel is communicated with an inner cavity of the electrical box mounting part.

4. The air conditioner according to claim 3, wherein the first wiring channel is a first wiring slot, and the first wiring slot is a split structure detachably arranged on the air duct cover plate (2).

5. The air conditioner according to any one of claims 1 to 4, wherein the first routing channel (22) comprises a strong current slot and a weak current slot, and a partition (221) is arranged between the strong current slot and the weak current slot for separating.

6. The air conditioner according to claim 5, wherein the partition (221) is provided with a wiring gap (2211).

7. The air conditioner according to claim 3, characterized in that an avoiding notch (222) is formed on the air duct cover plate (2) at a position corresponding to the electrical box mounting part (13).

8. The air conditioner as claimed in claim 1, wherein the third and fourth wiring slots are provided with positioning posts and screw posts at one ends thereof adjacent to the second wiring slot.

9. The air conditioner of claim 8, wherein the first connecting portion and the third connecting portion are provided with screw holes, and the first connecting portion is matched with the positioning column and the screw column on the third wiring groove, and the third connecting portion is matched with the positioning column and the screw column on the fourth wiring groove.

10. The air conditioner of claim 8, wherein the second connecting portion and the fourth connecting portion are tabs, and the second connecting portion mates with a slot on the third cabling channel and the fourth connecting portion mates with a slot on the fourth cabling channel.

11. The air conditioner according to claim 1, wherein the air duct cover plate (2) has an upper side and a lower side which are oppositely arranged, the first routing channel (22) is arranged on the upper side of the air duct cover plate (2), and the first routing channel (22) extends to the length direction of two sides of the air conditioner.

12. The air conditioner according to any one of claims 1 to 4, wherein a first wire receiving groove is formed at a side of the first cover plate (133) facing the bottom case (1), and a second wire receiving groove is formed at a side of the second cover plate (134) facing the bottom case (1).

Images