WO2016180255A1

WO2016180255A1 - Air conditioner

Info

Publication number: WO2016180255A1
Application number: PCT/CN2016/080891
Authority: WO
Inventors: 张长春; 吴少波; 彭伟威; 李松; 杨检群; 梁勇超; 游俊雄; 熊华祥; 廖岸辉; 徐远炬; 刘宝宝; 谭宋平; 吴秀滢; 安智; 玉鼎
Original assignee: 珠海格力电器股份有限公司
Priority date: 2015-05-08
Filing date: 2016-05-03
Publication date: 2016-11-17
Also published as: CN106016455B; CN106016455A; CN205448036U; CN104807109A

Abstract

An air conditioner, comprising: a bottom housing (1) having an upper side and a lower side opposite one another, said bottom housing (1) being provided with a first air passage (111) and a second air passage (112) extending from said upper side to said lower side; the first air passage (111) is provided with a first upper air outlet (1211) and with a first lower air outlet (1221), and the second air passage (112) is provided with a second upper air outlet (1212) and with a second lower air outlet (1222); a first upper vortex tongue (151) is arranged at the first upper air outlet (1211) and a first lower vortex tongue (153) is arranged at the first lower air outlet (1221), and a second upper vortex tongue (152) is arranged at the second upper air outlet (1212) and a second lower vortex tongue (154) is arranged at the second lower air outlet (1222); the first upper vortex tongue (151) and the second upper vortex tongue (152) respectively project in opposite outward directions, while the first lower vortex tongue (153) and the second lower vortex tongue (154) respectively project in inward directions approaching each other; a first centrifugal fan (3a) is arranged within the first air passage (111); a second centrifugal fan (3b) is arranged within the second air passage (112); an installation portion (13) for electrical components is arranged between the first upper vortex tongue (151) and the second upper vortex tongue (152).

Description

Air conditioner

Technical field

The present invention relates to the field of air conditioning technology, and in particular to an air conditioner.

Background technique

At present, a centrifugal fan is arranged in the air duct of the air conditioner. In order to ensure the normal operation of the centrifugal fan, the motor of the centrifugal fan needs to be connected with the circuit board to supply power to the motor and drive the centrifugal fan to work.

In the prior art, the circuit board of the air conditioner is generally disposed outside the air duct, and the wiring between the centrifugal fan motor and the circuit board is relatively complicated, and it is easy to interfere with other components of the air conditioner, and the reliability is poor, and even a safety hazard may be caused.

Summary of the invention

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

In order to achieve the above object, the present invention provides an air conditioner comprising: a bottom case having oppositely disposed upper and lower sides, the bottom case being provided with a first air passage and a second wind extending from an upper side to a lower side a first air duct and a second air duct are symmetrically disposed, the first air passage has a first upper air outlet corresponding to the upper side and a first lower air outlet corresponding to the lower side, and the second air passage has a corresponding upper side a second upper air outlet and a second lower air outlet corresponding to the lower side, the first upper air outlet is provided with a first upper volute tongue, the first lower air outlet is provided with a first lower volute tongue, and the second upper vent is provided a second upper volute tongue is disposed at the tuyere, and a second lower volute tongue is disposed at the second lower air outlet, wherein the first upper volute tongue and the second upper volute tongue respectively protrude away from the direction, the first lower volute tongue And the second lower volute protrudes toward each other respectively; the first centrifugal fan is disposed in the first air passage; the second centrifugal fan is disposed in the second air passage; the electrical box mounting portion is disposed on the first upper volute Between the tongue and the second upper volute tongue.

Further, the air conditioner further includes an air duct cover attached to the bottom case, the first centrifugal fan and the second centrifugal fan are located between the bottom case and the air duct cover, and the air duct cover has a corresponding to the first centrifugal fan a flow guiding port and a second air guiding port corresponding to the second centrifugal fan.

Further, the air duct cover is provided with a first routing channel, and the first routing channel is disposed on a side of the air duct cover away from the bottom casing, and the first routing channel is in communication with the inner cavity of the electrical box mounting portion.

Further, the first routing channel includes a strong wire slot and a weak wire slot, and a partition is provided between the strong wire slot and the weak wire slot.

Further, a wiring notch is provided on the spacer.

Further, a relief notch is formed on the air duct cover corresponding to the position of the electrical box mounting portion.

Further, the bottom case is provided with a duct wall between the first centrifugal fan and the second centrifugal fan, and the air duct wall is provided a second routing channel is disposed, the bottom casing is provided with a third routing channel corresponding to the air duct wall and the first centrifugal fan, and the bottom casing is provided with a fourth routing line corresponding to the air duct wall and the second centrifugal fan The channel and the second routing channel are respectively connected to the third routing channel and the fourth routing channel.

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

Further, a third cover is disposed on the third wireway, and a second cover is disposed on the fourth wireway.

Further, the first end of the first cover is provided with a first connecting portion, the second end of the first cover is provided with a second connecting portion, and the first end of the second cover is provided with a third connecting portion, the second The second end of the cover is provided with a fourth connecting portion.

Further, a first wire receiving groove is disposed on a side of the first cover toward the bottom case, and a second wire receiving groove is disposed on a side of the second cover toward the bottom case.

According to the technical solution of the present invention, the bottom case is provided with a first air passage and a second air passage extending from the upper side to the lower side, the first air passage having a first upper air outlet corresponding to the upper side and corresponding to the lower a first lower air outlet on the side, the second air passage has a second upper air outlet corresponding to the upper side and a second lower air outlet corresponding to the lower side, and the first upper air outlet is provided with a first upper volute tongue, a first lower volute tongue is arranged at the 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 first upper volute tongue and the first The upper upper volute tongue protrudes in a direction away from each other, and the first lower volute tongue and the second lower volute tongue respectively protrude toward each other. An electrical box mounting portion is disposed between the first upper volute and the second upper volute. The electrical box mounting portion is provided with an electrical box containing electrical components such as a circuit board, and the motor wires of the first centrifugal fan and the second centrifugal fan may be connected to electrical components such as the above-mentioned circuit board, thereby realizing the first centrifugal fan and the first The motor of the second centrifugal fan is powered. The above lines are simple and reliable. At the same time, in the present application, the electrical box mounting portion is disposed in the cavity formed between the first upper volute tongue and the second upper volute tongue, effectively utilizing the use space of the bottom shell, thereby making the internal structure of the air conditioner more The compact size makes the air conditioner slimmer.

DRAWINGS

The accompanying drawings, which are incorporated in the claims of the claims In the drawing:

1 is a schematic exploded view showing an air conditioner according to an embodiment of the present invention;

2 is a perspective structural view showing a bottom case of an air conditioner according to an embodiment of the present invention;

Figure 3 is a schematic enlarged view of the structure of Figure 2;

4 is a front perspective view showing a bottom case of an air conditioner according to an embodiment of the present invention;

FIG. 5 is a structural schematic view showing 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 structural schematic view showing a bottom case of an air conditioner and a centrifugal fan mounted on the bottom case according to an embodiment of the present invention;

Figure 7 is a schematic exploded view of Figure 6;

Figure 7a is a schematic view showing the structure of a centrifugal impeller of a centrifugal fan of an air conditioner according to an embodiment of the present invention;

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

9 is a schematic structural view of 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 of a duct cover of an air conditioner according to an embodiment of the present invention; FIG.

Figure 11 is a partially enlarged schematic view of Figure 10;

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

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

FIG. 14 is a structural schematic view showing 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 showing a bottom case, a duct cover, and a centrifugal fan of an air conditioner installed together according to an embodiment of the present invention;

Figure 16 is a cross-sectional structural view showing the line A-A in Figure 15;

Figure 17 is a schematic view showing the enlarged structure of M in Figure 16;

Figure 18 is a partially enlarged schematic view showing the structure of Figure 16;

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

Figure 20 is a cross-sectional structural view showing the line B-B in Figure 19;

Figure 20a shows an enlarged schematic view of the structure at C in Figure 20;

21 is a schematic exploded view showing a panel body and a front panel of an air conditioner according to an embodiment of the present invention;

22 is a schematic structural view showing a driving structure and an entrance grill of an air conditioner according to an embodiment of the present invention;

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

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

Figure 25 is a cross-sectional structural view of Figure 24;

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

27 is a flow chart showing a booting procedure of an embodiment of a method of controlling an air conditioner according to an embodiment of the present invention;

FIG. 28 is a flow chart showing the shutdown procedure of the embodiment of the control method of FIG. 27.

Wherein, the above figures include the following reference numerals:

1, the bottom shell; 11, the air duct; 11a, the first side wall; 11b, the second side wall; 111, the first air duct; 112, the second air duct; 121, the upper air outlet; 122, the lower air outlet; 1211, the first upper air outlet; 1212, the second upper air outlet; 1221, the first lower air outlet; 1222, the second lower air outlet; 13, the electrical box installation portion; 131, the electrical box; 1321, the second line Channel; 1322, third routing channel; 1323, fourth routing channel; 133, first cover; 1331, first connecting portion; 1332, second connecting portion; 134, second cover; a connecting portion; 1342, a fourth connecting portion; 14, a motor cooling hole; 151, a first upper volute tongue; 152, a second upper volute tongue; 153, a first lower volute tongue; 154, a second lower volute tongue; Sweeping mechanism; 161, first upper air-sweeping mechanism; 162, second upper air-swept mechanism; 163, first lower air-swept mechanism; 164, second lower wind-swept mechanism; 171, upper air deflector; Air deflector; 181, air duct bottom surface; 1821, mounting groove bottom surface; 1822, mounting groove side wall; 2, duct cover; 21, diversion port; 211, first diversion port; 212, second Diversion port; 22 First routing channel; 221, partition; 2211, wiring gap; 222, avoidance gap; 23, drive box; 24, anti-leakage groove; 25, support rib; 26, vertical plate; 3, centrifugal fan; 3a, First centrifugal fan; 3b, second centrifugal fan; 31, centrifugal impeller; 311, hub; 3111, ventilation hole; 312, wind shield; 32, motor gland; 321, first cover; 322, connection convex Edge; 323, reinforced structure; 33, fan motor; 313, leaf body plate; 314, diversion ring; 4, evaporator; 5, base; 51, placement groove; 52, carrying platform; 53, supporting vertical plate; , water pipe; 6, front panel; 61, upper air inlet; 62, lower air inlet; 63, side air inlet; 7, panel body; 71, baffle receiving groove; 73, enter the style grid; 74, frame; , filter; 76, drive mechanism; 81, upper air baffle; 82, lower air baffle; 9, air baffle; 91, upper air baffle; 92, lower air baffle; Into the motor; 94, stop step surface; 95, the second avoidance groove; 96, gasket.

detailed description

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

As shown in FIG. 1 , FIG. 9 and FIG. 24 , the air conditioner of the present embodiment includes: a bottom case 1 , a centrifugal fan 3 , a duct cover 2 , an evaporator 4 , a panel body 7 , a front panel 6 , and a front plate which are sequentially disposed. The wind baffle 81, the lower air inlet baffle 82, and the air outlet baffle 9. The above structure will be introduced one by one.

As shown in FIG. 2 to FIG. 8 and FIG. 25, the bottom case 1 has opposite upper and lower sides, and the bottom case 1 is provided with an air passage 11 extending from the upper side to the lower side, and the air passage 11 has a corresponding upper side. The upper air outlet 121 and the lower air outlet 122 corresponding to the lower side, the upper air outlet 121 is provided with an upper air deflector 171 and an upper air sweeping mechanism, and the lower air outlet 122 is provided with a lower air deflector 173 and a lower sweeping air. Wind mechanism. The upper air outlet 121 is ventilated upward, and the lower air outlet 122 is ventilated downward. The upper air outlet 121 is provided with an upper air deflector 171 and an upper air sweeping mechanism, and the lower air outlet 122 is provided with a lower air deflector 173 and a lower air sweeping mechanism. In this way, the user can adjust the air output from the upper air outlet 121 and/or the lower air outlet 122 according to actual needs, thereby improving the amplitude of the adjustment of the air outlet direction, thereby improving the user's comfort. 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 FIGS. 9 and 10, the duct cover 2 has a flow guiding port 21 that communicates with the air duct 11. The specific structure and function of the duct cover 2 will be described in detail later.

As shown in Fig. 1, Fig. 7, Fig. 7a and Fig. 8, the centrifugal fan 3 is disposed in the 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 body 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 the side of the centrifugal fan 3 remote from the bottom case 1. In the present embodiment, the evaporator 4 covers all the flow guiding ports 21. Or in other embodiments, each of the air outlets 21 is correspondingly provided with an evaporator.

As shown in Figures 1, 24 and 26, the front panel 6 is movably disposed on the bottom casing 1, the front panel 6 preferably having an open position away from the bottom casing 1 and a closed position adjacent to the bottom casing 1, the front panel 6 being When the position is opened, an air inlet is formed between the front panel 6 and the bottom case 1. The air inlet includes an upper air inlet 61 and a lower air inlet 62, and a side air inlet 63 disposed between the upper air inlet 61 and the lower air inlet 62. Further, the upper air inlet 61 and the lower air inlet 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. Since the front panel 6 and the air duct cover 2 are adjustably connected, the size of the air inlet can be adjusted by changing the distance between the front panel 6 and the air duct cover 2, so that the air conditioner has a unit time. The adjustable air volume optimizes the heat exchange reliability of the air conditioner. The front panel 6 is movably disposed on the bottom case 1 such that the thickness of the air conditioner is reduced, making the air conditioner more slim. Of course, the front panel 6 can 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 that is placed over the frame 74. It is beneficial to prevent impurities from entering the indoor unit of the air conditioner, hindering the normal operation of the indoor unit of the air conditioner, and is beneficial to reducing the probability of failure of the indoor unit of the air conditioner.

As shown in FIG. 24, the upper air inlet flap 81 is correspondingly disposed at the upper air inlet 61, and is used to block or open the upper air inlet 61. The lower air inlet baffle 82 is correspondingly disposed at the lower air inlet 62 and is used to block or open the lower air inlet 62. When the air conditioner is in the upper air outlet state, the upper air inlet baffle 81 blocks the upper air inlet port 61, and when the air conditioner is in the lower air outlet state, the lower air inlet baffle 82 blocks the lower air inlet port 62. Since the upper air inlet baffle 81 and the lower air inlet baffle 82 are provided, when the exhaust air outlet corresponding thereto is exhausted, the exhaust air return baffle can be effectively prevented by closing the corresponding air inlet baffle, thereby effectively improving The heat exchange effect of the air conditioner can significantly improve the energy efficiency of the air conditioner, so that the air conditioner has the characteristics of low energy consumption and good running performance. The specific structure and connection relationship of the upper air inlet flap 81 and the lower air inlet flap 82 will be described in detail later.

As shown in FIG. 9, FIG. 16, FIG. 18 and FIG. 25, each of the air outlets is correspondingly provided with a pivotable air outlet baffle 9, and each of the air outlet baffles 9 has the first to avoid the air duct 11. Position and close the second position of the corresponding air outlet. The user can adjust which outlet is ventilated according to actual needs, and the adjustment of the direction of the air outlet is improved, thereby improving the user's comfort. In this embodiment, the air outlet baffle includes an upper air outlet baffle 91 and a lower air outlet baffle 92. The upper air outlet baffle 91 is disposed corresponding to the upper air outlet 121, and the lower air baffle 92 and the lower air outlet 122 are disposed. Correspondingly, the upper air outlet baffle 91 can avoid the upper air outlet 121 or close the upper air outlet 121 by pivoting, and the lower air outlet 92 can avoid the lower air outlet 122 or close the lower air outlet 122 by pivoting. The above structure can close the upper air outlet 121 or the lower air outlet 122 according to user requirements. When the air conditioner is in the upper air outlet state, in this state, the lower air outlet baffle 92 is pivoted to a position where the lower air outlet 122 is closed, and the upper air outlet baffle 91 is located at a position to avoid the upper air outlet 121. At this time, the air conditioner The air is only discharged through the upper air outlet 121. Similarly, it is also possible to generate air only through the lower air outlet 122 or through the upper air outlet 121 and the lower air outlet 122. 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 FIGS. 2 and 8, the bottom case 1 has a motor heat dissipation hole 14 at a position corresponding to the fan motor 33. Since the motor heat dissipation hole 14 is disposed on the bottom case 1, that is, the heat of the fan motor 33 is discharged through the motor heat dissipation hole 14 on the bottom case 1 by means of heat dissipation on the side of the bottom case 1, so that the air conditioner is heated. In the cooling mode, the heat dissipation effect of the fan motor 33 can be ensured, and the influence of the mode conversion on the heat dissipation of the fan motor 33 can be eliminated, thereby effectively improving the fan motor 33. The heat dissipation reliability ensures the stability of the heat dissipation of the fan motor 33, thereby reducing the operating temperature of the fan motor 33, high work efficiency, low energy consumption, and long service life.

In the bottom case 1 of the present invention, an air duct 11 is formed. The air conditioner further includes a motor gland 32 for isolating the outer casing of the fan motor 33 from the air duct 11, and the motor gland 32 is disposed outside the fan motor 33 and The bottom case 1 is connected. Since the motor gland 32 is disposed outside the fan motor 33, that is, the fan motor 33 is isolated from the air duct 11, the temperature of the wind inside the air duct 11 does not affect the fan motor 33, and passes through the bottom case. The motor cooling hole 14 on the 1 ensures the heat dissipation reliability of the fan motor 33, thereby ensuring the stability of the operating temperature of the fan motor 33.

In the preferred embodiment shown in FIG. 8, the motor gland 32 includes a first cover 321 and a connecting flange 322. The first cover 321 is fastened to the outside of the outer casing of the fan motor 33, and the opening of the first cover 321 The end is provided with a connecting flange 322 which is mated with the bottom case 1. Since the first cover body 321 is provided, it is effective to isolate the fan motor 33 from the air duct 11 while ensuring that the fan motor 33 can be stably mounted on the bottom case 1, thereby ensuring the operational reliability of the fan motor 33. Since the connection flange 322 is provided, the connection reliability of the first cover 321 and the bottom case 1 is ensured. At the same time, since the connecting flange 322 is mated with the bottom case 1, the contact area of the two is increased, and local stress concentration is effectively reduced.

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

As shown in FIG. 8, the reinforcing structure 323 includes one or more reinforcing ribs extending along the center of the cover toward the open end of the first cover 321 and a plurality of reinforcing ribs are spaced apart from each other. Of course, the reinforcing ribs may also be disposed on the first cover 321 in a ring shape.

In a preferred embodiment, not shown, the air conditioner further includes a fan motor fixing bracket. The fan motor fixing bracket is crimped to the outside of the fan motor 33 and connected to the bottom casing 1. The fan motor fixing bracket has a first ventilation structure. Since the bottom case 1 has the motor heat dissipation holes 14, the heat in the fan motor 33 is dissipated through the motor heat dissipation holes 14 even if the wind in the air passage 11 passes through the first ventilation structure. In the external environment, the heat dissipation reliability of the fan motor and the variety of heat dissipation methods are ensured. Especially in the cooling mode, the cold air in the air duct 11 cools the fan motor 33, thereby preventing the fan motor 33 from overheating, and ensuring the operational stability and reliability of the fan motor 33.

Preferably, the air conditioner further includes a second cover body rotatably disposed on the fan motor fixing bracket, the second cover body has a second ventilation structure, and the second cover body has a first working position and a second working position Position, when the second cover is in the first working position, the first ventilation structure is in communication with the second ventilation structure and the air passage 11 is in communication with the fan motor 33; when the second cover is in the second working position, the first ventilation The structure is staggered with the second ventilation structure to isolate the air duct 11 from the fan motor 33. Since the second cover body having the second ventilation structure is provided, by changing the working position of the second cover body, the state transition of the fan motor 33 from the air passage 11 is isolated or communicated, so that when the air conditioner is in different modes. The heat dissipation mode of the fan motor 33 can be selectively controlled.

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 is in the first working position; when the air conditioner is in the heating mode, the second cover is In the second working position.

When the air conditioner is in the cooling mode, the cold air in the air duct 11 can cool the fan motor 33 at this time, so that the fan motor 33 is in normal operation by combining the heat dissipation of the bottom shell 1 and the cooling of the cold air. status.

When the air conditioner is in the heating mode, the hot air in the air duct 11 further increases the temperature of the fan motor 33. At this time, the fan motor 33 needs to be isolated from the air duct 11 to avoid the influence of the hot air on the fan motor 33, thereby The fan motor 33 is dissipated only through the motor cooling holes 14 on the bottom case 1 to ensure that the fan motor 33 is in a normal operating state.

As shown in FIGS. 2 and 3, the motor heat dissipation holes 14 have a waist-shaped hole or a circular shape. When the motor heat dissipation hole 14 is a waist hole, compared with the circular motor heat dissipation hole 14, the opening area of the motor heat dissipation hole 14 can be effectively increased, thereby improving the heat dissipation effect of the motor heat dissipation hole 14.

Of course, the motor louver 14 can also be set to a polygonal shape, an elliptical shape or an irregular geometric shape or the like.

In the preferred embodiment shown in FIG. 2 and FIG. 3, the motor heat dissipation holes 14 are plural, and the plurality of motor heat dissipation holes 14 are disposed along the circumferential direction of the fan motor 33, and the long diameter of the waist-shaped motor heat dissipation holes 14 is formed. It is arranged along the radial direction of the fan motor 33. Since there are a plurality of motor heat dissipation holes 14, the heat dissipation efficiency of the fan motor 33 can be effectively improved, and the heat dissipation reliability of the air conditioner can be ensured. When the long diameter of the heat dissipation hole 14 of the waist is arranged along the radial direction of the fan motor 33, not only the heat dissipation area is sufficient, but also the uniformity of the heat dissipation effect of the fan motor 33 is good, and the fan motor 33 is prevented from being overheated locally, thereby improving The operational reliability of the fan motor 33.

Preferably, the air conditioner further includes a centrifugal impeller 31. The hub 311 of the centrifugal impeller 31 has a closed arc structure, and the hub 311 of the centrifugal impeller 31 is disposed outside the fan motor 33 to reduce the communication between the air duct 11 and the fan motor 33. area. Since the hub 311 of the centrifugal impeller 31 has a closed arc structure, the connection area of the air duct 11 and the fan motor 33 can be reduced by the isolation of the centrifugal impeller 31, thereby reducing the temperature of the wind in the duct 11 to the fan. The influence of the motor 33 ensures the operational reliability of the fan motor 33.

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. Since the hub 311 of the centrifugal impeller 31 has the vent hole 3111, the communication area between the air duct 11 and the fan motor 33 is increased. When the air conditioner is in the cooling mode, the cold air in the air duct 11 also cools the fan motor 33. The function is to improve 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, the side of the air duct cover 2 facing the bottom case 1 is provided with a vertical plate 26 extending along the side of the air duct 11, and the vertical plate 26 is overlapped with the side wall of the air duct 11. The vertical plate 26 overlaps and abuts against the side wall of the air duct 11 for preventing the air passage 11 from leaking. The side of the duct cover 2 of the present invention remote from the bottom case 1 is provided with support ribs 25 for supporting the evaporator. Since the support rib 25 is provided, the installation reliability of the evaporator is ensured, and the contact area between the evaporator and the air duct cover 2 is increased, the sloshing and vibration of the evaporator are effectively avoided, and the setting stability and operation of the evaporator are improved. reliability. As shown in FIGS. 14 and 16, the support rib 25 is located at the center of the duct cover 2. Preferably, the support ribs 25 are located between the two flow openings 21. Since the mass of the evaporator is heavy and the volume is large, the support rib 25 is disposed in the middle of the air duct cover 2 to enhance the overall structural strength of the air duct cover 2 while ensuring the reliability of the evaporator placement. The operational reliability and stability of the 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 FIG. 7, FIG. 16, and FIG. 17, the bottom case 1 has a duct bottom surface 181 and a mounting groove for mounting the centrifugal fan 3. The air passage bottom surface 181 is located on the circumferential outer side of the mounting groove, and the fan motor 33 is disposed. In the mounting groove, the blade body plate 313 is higher or flush with the air passage bottom surface 181.

The air conditioner includes a bottom case 1 and a centrifugal fan 3. The bottom case 1 is provided with an air duct and an air outlet which cooperate with the centrifugal fan 3, and the centrifugal fan 3 is disposed in the air duct. The air conditioner of the present embodiment employs a centrifugal fan 3 which is thinner in the thickness direction of the air conditioner than the cross-flow vane of the prior art, so that the thickness of the air conditioner can be effectively reduced. At the same time, the bottom case 1 has a mounting groove in which the centrifugal fan 3 is mounted, and the arrangement of the above-described mounting groove can further reduce the thickness of the air conditioner, making the air conditioner more slim. In the present application, the centrifugal fan 3 has a blade body plate 313 having a duct bottom surface 181 located circumferentially outward of the mounting groove, and the blade body plate 313 protrudes from the air passage bottom surface 181. When the centrifugal fan 3 is out of the wind, the wind will blow out from above the blade body plate 313, and the wind leaving the blade body plate 313 will reach the air channel bottom surface 181, and the leaf body plate 313 protrudes from the air channel bottom surface 181 so that the leaf body plate 313 The resistance to the above wind is smaller, thereby ensuring that the air conditioner can achieve a larger air volume. It can be seen from the above that the air conditioner of the present application effectively ensures the air volume while solving the thickness problem, so that the user experience is better.

In the first embodiment, the mounting groove includes a mounting groove bottom surface 1821 and a mounting groove side wall 1822. The mounting groove side wall 1822 extends from the mounting groove bottom surface 1821 to the air passage bottom surface 181. The above structure makes the wind resistance smaller, thereby better ensuring the air volume.

As shown in FIG. 17, in the first embodiment, the bus bar of the mounting groove side wall 1822 and the mounting groove bottom surface 1821 have an acute angle α. The above structure is convenient for processing, installation and maintenance, and the above structure can ensure a small resistance to the wind.

The above acute angle is preferably in the range of 40 to 50. As shown in FIG. 17, in the present embodiment, the angle α between the bus bar of the mounting groove side wall 1822 and the bottom surface 1821 of the mounting groove is 45°, which is simple to manufacture, easy to implement, and favorable for air flow. The orientation forms a buffer.

As shown in FIGS. 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 that the centrifugal fan 3 smoothly rotates in the space in which it is located.

As shown in FIG. 15, in the first embodiment, the air ducts are disposed in two, and the two air ducts are arranged side by side, and the centrifugal fan 3 corresponding to the air duct is also set to two. The arrangement of the two ducts and the corresponding centrifugal fan 3. On the one hand, the air volume can be ensured, and on the other hand, the space occupied by the air conditioner is not increased much. Of course, the air duct and the centrifugal fan 3 can be set to three or more as needed.

As shown in Figures 1 and 7, preferably, the fan is a centrifugal fan. The centrifugal fan includes: a flow guiding ring 314; a blade body plate 313 spaced apart from the air guiding ring 314, and a leaf body plate 313 is formed with a protrusion protruding in the direction of the flow regulating ring 314, and the motor receiving cavity is formed in the protruding body; The blades are each mounted between the draft ring 314 and the blade body plate 313, and a plurality of blades are arranged along the circumference of the protrusion.

The middle portion of the blade body plate 313 forms a projection projecting from the guide flow ring 314, and an opening is formed in the projection on the surface of the blade body plate 313 opposite to the surface of the flow guiding ring 314, and the plurality of blades are convex. The circumferential direction is evenly arranged, and the motor is placed between the flow guiding ring 314 and the blade body plate 313, which reduces the thickness of the indoor unit of the air conditioner, and further reduces the space occupied by the air conditioner.

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

As shown in FIG. 23 to FIG. 25, specifically, the upper air inlet baffle 81 and the lower air inlet baffle 82 have the following working states: when the upper air outlet 121 and the lower air outlet 122 both emit air, the upper air inlet baffle 81 And the lower air inlet baffle 82 respectively blocks the upper air inlet 61 and the lower air inlet 62; and/or when only the upper air outlet 121 is ventilated, only the upper air inlet baffle 81 blocks the upper air inlet 61; and/or when only the air outlet is lowered When the wind is out of the 122, only the lower air inlet baffle 82 blocks the lower air inlet 62.

It should be noted here that while preventing the exhaust air from flowing back, it is also necessary to ensure that the air conditioner has sufficient air intake amount, otherwise the heat exchange effect and energy efficiency of the air conditioner are also reduced. Therefore, the air conditioner of the present invention simultaneously closes the upper air inlet flap 81 and the lower air inlet flap 82 only when both the upper air outlet 121 and the lower air outlet 122 are out of the air, otherwise the air exhausting flap 81 and the lower air inlet flap 82 can be selectively closed. The corresponding air inlet baffle can be used. Moreover, when both the upper air outlet 121 and the lower air outlet 122 are closed, it is necessary to rely on the side air inlet 63 to ensure the air intake.

The upper air inlet flap 81 and the lower air inlet flap 82 are reversibly disposed between the front panel 6 and the duct cover 2. Since the reversible upper air inlet baffle 81 and the lower air inlet baffle 82 are disposed between the front panel 6 and the air duct cover 2, by controlling the working state of the upper air inlet baffle 81 and the lower air intake baffle 82, Meet the anti-return requirements of different air modes.

As shown in FIG. 22, the air conditioner of the present embodiment further includes a drive mechanism 76. The front panel 6 is drivingly coupled to the drive mechanism 76, and the drive mechanism 76 pushes the front panel 6 forward to form the air inlet. Since the air inlet described above can be formed by pushing the front panel 6 forward, the air inlet and outlet modes of the air conditioner are optimized. Both sides of the panel body 7 are provided with a seating portion that protrudes in the direction of the bottom case 1, and the mounting portion is provided with a driving mechanism 76. The arrangement for placing the driving mechanism 76 in a form protruding toward the bottom case 1 is advantageous in reducing the thickness of the indoor unit of the air conditioner and making full use of the space.

Preferably, the first side of the upper air inlet flap 81 is pivotally connected to the front panel 6 or the duct cover 2, and the second side of the upper air inlet flap 81 is a free side. Since the upper air inlet flap 81 is pivotally coupled to the front panel 6 and/or the duct cover 2, the operational reliability and the storage reliability of the upper air inlet flap 81 are improved. When the upper air inlet baffle 81 is in the stowed state and does not block the wind, the upper air inlet baffle 81 can be disposed close to the air duct cover 2 or the front panel 6 to avoid the upper air inlet opening 61, thereby ensuring the air conditioner. Air inlet reliability.

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, here I won't go into details.

In a specific embodiment, the first side of the upper air inlet baffle 81 is pivotally connected to the air duct cover 2, and the surface of the front panel 6 facing the side of the air duct cover 2 has an air inlet sealing structure. The second side of the wind baffle 81 is in sealing engagement with the air inlet sealing structure. Since the air inlet sealing structure is provided in a sealing fit with the second side of the upper air inlet flap 81, the return air return reliability of the upper air inlet flap 81 is ensured, thereby avoiding the backflow problem caused by air leakage. Of course, the above-mentioned air inlet sealing structure may also be disposed at the position of the front panel 6 corresponding to the lower air inlet baffle 82.

Preferably, the air inlet sealing structure comprises an air inlet sealing tongue or an air inlet sealing step surface. When the air inlet sealing structure is an air inlet sealing tongue or an air inlet sealing step surface, when the upper air inlet baffle 81 is overlapped on the air inlet sealing tongue or the air inlet sealing step surface, not only the sealing effect is obtained, but also The upper air inlet baffle 81 functions as a limit and a stop, thereby effectively preventing the upper air inlet baffle 81 from moving excessively, and further improving the operational reliability of the upper air inlet baffle 81.

In another specific embodiment, the first side of the upper air intake flap 81 is pivotally coupled to the front panel 6, and the second side of the upper air intake flap 81 is flipped toward the side of the air duct cover 2. Since the front panel 6 belongs to the operating member, attaching the upper air inlet flap 81 to the front panel 6 increases the overall quality and operational load of the front panel 6.

As shown in FIG. 21, in order to improve the storage reliability of the upper air inlet flapper 81, the surface of the air duct cover 2 facing the front panel 6 side of the present invention has a shutter receiving groove 71, and the upper air inlet flap 81 can be accommodated. In the baffle receiving groove 71. Since the air duct cover 2 is provided with the baffle receiving groove 71 for accommodating the upper air inlet baffle 81, when the upper air inlet baffle 81 is retracted to avoid the upper air inlet 61, the upper air inlet 61 is completely opened and unobstructed, thereby ensuring The air intake of the air conditioner ensures the energy efficiency of the air conditioner.

Similarly, the baffle receiving groove 71 can also be used to receive the lower air inlet baffle 82.

In the preferred embodiment shown in FIGS. 1 and 25, the air conditioner further includes a bottom case 1, a duct cover 2, a panel body 7, and a front panel 6, and an upper air inlet 61 and a lower air inlet 62 are formed in the panel body 7 and Between the front panels 6, the upper air inlet flap 81 and the lower air inlet flap 82 are reversibly disposed between the front panel 6 and the panel body 7. At this time, since the panel body 7 is interposed between the duct cover 2 and the front panel 6, the air inlet is formed between the panel body 7 and the front panel 6 when the front panel 6 is moved.

Preferably, the front panel 6 is adjustably connected to the position of the panel body 7. Since the front panel 6 and the panel body 7 are adjustably connected, 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 an adjustable air volume per unit time. In turn, the heat exchange reliability of the air conditioner is optimized.

At this time, the first side of the upper air intake flap 81 is pivotally coupled to the front panel 6 and/or the panel body 7, and the second side of the upper air inlet flap 81 is a free side. Since the upper air inlet flap 81 is pivotally coupled to the front panel 6 and/or the panel body 7, the operational reliability and storage reliability of the upper air inlet flap 81 are improved. When the upper air inlet flap 81 is in the stowed state and the wind is not blocked, the upper air inlet flap 81 can be disposed close to the panel body 7 or the front panel 6 to avoid the upper air inlet 61, thereby ensuring the air inlet of the air conditioner. reliability.

Similarly, the connection relationship between the lower air inlet baffle 82 and the front panel 6 and/or the panel body 7 is similar to the connection relationship between the upper air inlet baffle 81 and the front panel 6 and/or the panel body 7, and will not be described here.

In the preferred embodiment, the first side of the upper air inlet flap 81 is pivotally connected to the panel body 7, and the surface of the front panel 6 facing the panel body 7 has an air inlet sealing structure, and the upper air inlet flap 81 The second side is in sealing engagement with the inlet sealing structure. Since the air inlet sealing structure is provided in a sealing fit with the second side of the upper air inlet flap 81, the return air return reliability of the upper air inlet flap 81 is ensured, thereby avoiding the backflow problem caused by air leakage. Of course, the above-mentioned air inlet sealing structure may also be disposed at the position of the front panel 6 corresponding to the lower air inlet baffle 82.

Similarly, the air inlet sealing structure includes an air inlet sealing tongue or an air inlet sealing step surface.

Alternatively, the first side of the upper air intake flap 81 is pivotally coupled to the front panel 6, and the second side of the upper air intake flap 81 may be turned toward the side of the panel body 7.

As shown in FIG. 24, in order to improve the storage reliability of the upper air inlet flapper 81, the surface of the panel body 7 facing the front panel 6 side of the present invention has a shutter receiving groove 71, and the upper air inlet flap 81 can be accommodated in the block. The plate accommodates the groove 71. Since the panel body 7 is provided with the baffle receiving groove 71 for accommodating the upper air inlet baffle 81, when the upper air inlet baffle 81 is retracted to avoid the upper air inlet 61, the upper air inlet 61 is completely opened and unobstructed, thereby ensuring the air conditioner. The air intake of the device ensures the energy efficiency of the air conditioner. Similarly, the baffle receiving groove 71 can also be used to receive the lower air inlet baffle 82.

The air conditioner in the present invention further includes an entrance grill 73 provided corresponding to the side air inlet 63 and the lower air inlet 62, respectively, and the entrance grill 73 is connected to the drive mechanism 76 and/or the front panel 6 to follow the front panel 6. Synchronous movement. Due to the setting of the style grid 73, thus being able to effectively avoid the problem of accidental injury caused by the human hand accidentally touching the air inlet, thereby improving the safety of use of the air conditioner.

As shown in Fig. 22, the entrance grille 73 is in the form of a louver. When the whole machine is installed on the wall, the internal structural details of the air conditioner cannot be seen through the entrance grille 73 from the user's point of view, and the indoor air can enter the air conditioner through the inlet grille 73, and heat exchange is performed. Air conditioning.

In order to improve the storage reliability of the entrance grille 73, the panel body 7 is provided with a grill accommodation groove, and the entrance grille 73 can be accommodated in the grille accommodation groove.

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

As shown in FIGS. 16 and 18, the air outlet flapper 9 is driven by a stepping motor 93. The stepping motor 93 is a controllable motor, which is beneficial to solve the problem that the rotation is not in place.

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

Preferably, in the first position, the air outlet flap 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 air duct 11 has a first side wall 11a and a second side wall 11b which are oppositely arranged, and the first end of the air outlet baffle 9 is pivotally connected to the first side wall 11a of the air duct 11, the windshield The second end of the plate 9 cooperates with the second side wall 11b of the air duct 11.

The first side wall 11a of the air duct 11 is formed with a rotating groove for providing a rotating space for the first end of the air outlet baffle 9, and in the second position, the first end of the air outlet baffle 9 and the groove wall of the rotating groove In a closed fit, the second end of the air outlet baffle 9 cooperates with the second side wall 11b of the air duct 11 to close the corresponding air outlet.

Preferably, the first side wall 11a of the air duct 11 is formed with a first escape groove for receiving the air baffle. In the first position, the air outlet baffle 9 is located in the first escape groove and is attached to the first side wall 11a to prevent the air outlet from being ventilated.

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 flap 9 is engaged with the stop step surface 94. In the second position, the second end of the air outlet baffle 9 abuts against the stop step surface 94, which increases the contact area and is advantageous for improving the sealing effect.

Preferably, the stop step surface 94 faces away from the corresponding air outlet. When the stop step surface 94 faces the side of the wind, when the corresponding air outlet is closed, the wind driven wind deflector 9 rotates toward the stop step surface 94, and the pressure of the incoming air in the air duct 11 causes the air baffle 9 to be vented. The second end presses the stop step surface 94 to further improve the sealing effect.

Preferably, the second side wall 11b of the air duct 11 is formed with a second avoidance groove 95 for avoiding the second end of the air baffle, and the groove wall of the second escape groove 95 facing away from the air outlet forms a stop step Face 94.

The second relief groove 95 is in an arc shape matching the movement path of the second end of the air outlet baffle 9, and a stop step surface 94 is formed at the end of the movement end of the second end of the air outlet baffle 9.

Preferably, a gasket 96 is disposed between the air outlet baffle 9 and the stop step surface 94. Further, the sealing effect is improved to prevent air leakage. The gasket 96 may be made of a resilient material such as sponge or rubber.

One of the two air outlets of the air duct 11 is formed at the upper portion of the air conditioner, and the other is formed at the lower portion of the air conditioner. In system In cold mode, if the user does not like the cold wind blowing down, you can use the upward air outlet; in the heating mode, if the user likes the hot air, you can use the downward air outlet. Customers can adjust which outlet is out of the wind according to their needs.

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

Preferably, the first side wall 11a has a first inclined wind guiding surface, the first inclined wind guiding surface is inclined away from the wall; the second side wall 11b has a second inclined air guiding surface, and the second inclined wind guiding surface faces away from the wall Tilt in direction. The first side wall 11a and the second side wall 11b are disposed such that the wind direction is inclined toward the direction away from the wall.

Preferably, the air conditioner includes two air ducts 11 arranged side by side. It is beneficial to increase the efficiency of heat exchange by increasing the air volume of heat exchange.

According to another aspect of the present invention, there is provided a method of controlling an air outlet baffle of an air conditioner as described above, comprising: driving a wind baffle by a stepping motor 93.

Preferably, driving the windshield rotation by the stepping motor 93 includes that the number of pulses output to the stepping motor 93 is greater than the number of pulses required for the calculated stepping motor.

The amount of rotation of the stepping motor is proportional to the number of pulses received, and the calculated number of pulses required for the stepping motor is calculated according to the preset amount of rotation of the stepping motor 93 and calculated based on its proportional relationship. The number of pulses, but the stepping motor often has a phenomenon that the actual amount of rotation does not match the number of pulses received. In order to avoid the phenomenon that the air baffle cannot be rotated into position, the number of pulses output to the stepping motor is greater than the calculated step. The number of pulses required for the motor to solve the above problem.

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

As shown in FIG. 1 and FIG. 16, a wind tunnel 11 is formed on the bottom casing 1, and the air duct cover 2 is engaged with the bottom casing 1 and is disposed on the air duct 11, and the air duct cover 2 has a communication with the air duct 11. The air guiding port 21 is disposed in the air duct 11 and corresponding to the air guiding port 21, and the centrifugal impeller 31 and the air duct cover 2 have a matching gap; the air leakage preventing structure is disposed at the matching gap to reduce the air leakage of the matching gap. the amount.

Since the air leakage prevention structure is arranged at the matching gap, the effective matching effect between the two is matched, and the air intake is prevented or reduced from being scattered by the matching clearance, thereby ensuring the reliability of the air inlet and ensuring sufficient The amount of intake air is blown into the centrifugal impeller 31, thereby improving the energy efficiency and heat exchange effect of the air conditioner, and effectively reducing vibration and noise caused by airflow disturbance. Since the condensation is fundamentally avoided, the safety threat of the condensation on the electrical components is eliminated, and the safety hazard is eliminated, thereby ensuring the operational reliability of the air conditioner.

As shown in FIG. 16, the air leakage prevention structure of the present invention includes an annular windshield rim 312 which is disposed on the centrifugal impeller 31 and protrudes toward the side of the air duct cover 2, and the annular wind shield is provided. The inner diameter of the flange 312 is larger than the diameter of the flow port 21. Since the windshield impeller 31 is provided with the windshield protrusion 312 protruding toward the side of the duct cover 2, the fitting gap is partially blocked, thereby reducing the width of the air leakage gap and the amount of air leakage, thereby improving the effectiveness of the air conditioner. Inlet air volume and air inlet reliability.

In the embodiment shown in FIG. 16, the windshield rim 312 is located at the inner periphery of the upper surface of the choke of the centrifugal impeller 31. Since the windshield rim 312 is located at the inner periphery of the choke of the centrifugal impeller 31, leakage of the intake air can be prevented at the first time, and the effect of preventing air leakage is optimized.

Of course, the windshield rim 312 may also be disposed between the inner ring and the outer ring of the centrifugal impeller 31, or directly on the outer ring side of the centrifugal impeller 31, so that although it can also prevent air leakage, It is inevitable that a part of the air volume will generate eddy currents in the space between the windshield rim 312 and the inner ring side of the centrifugal impeller 31, which may easily cause airflow disorder and easily aggravate the 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 2, and the wind blocking convex edge 312 is embedded in the air leakage preventing groove 24 and is matched with the air leakage preventing groove 24 (refer to FIG. 16 ). Since the windshield ridge 312 is embedded in the air leakage preventing groove 24, a triple occlusion is formed in the air leakage direction, which prolongs the path of the wind escaping and increases the tortuosity of the overflow path, so that the wind is not easily coordinated. The leakage at the gap ensures the wind leakage reliability between the centrifugal impeller 31 and the duct cover 2.

Further, the groove wall surface of the air leakage preventing groove 24 is curved. Since the groove wall surface of the air leakage preventing groove 24 is curved, it can flow along the smooth curved air guiding surface when the wind overflows, thereby avoiding stress concentration or vortexing, and effectively reducing vibration and noise of the air conditioner.

The anti-leakage structure of the present invention includes a leakage preventing rib, and the anti-leakage bulging flange is a flange that protrudes from the air guiding port 21 of the air duct cover 2 toward the side of the air duct 11. Since the wind flows from the side of the duct cover 2 toward the side of the centrifugal impeller 31, the leak-preventing edge can function as an effective wind guide, so that the wind can be smoothly poured into the centrifugal impeller 31 by the action of the leakage preventing edge. Since the air leakage prevention protrusion protrudes from the air duct cover 2 toward the centrifugal impeller 31 side, the matching clearance is partially blocked, thereby reducing the width of the air leakage gap and the air leakage amount, thereby improving the effective air intake amount and the air conditioner. Wind reliability.

When the air leakage preventing edge is embedded inside the air guiding opening 21 and further protrudes toward the centrifugal impeller 31 side, the opening direction of the air leakage gap is changed at this time. Preferably, the air leakage preventing convex edge is located at the periphery of the air guiding opening 21 and The inner circumferential side of the centrifugal impeller 31 is extended so that the opening direction of the air leakage gap faces away from the air inlet direction of the air guiding port 21. When the opening direction of the air leakage gap deviates from the air inlet direction of the air guiding port 21, the incoming air from the air inlet direction is directly blown into the centrifugal impeller 31, and the air inlet is difficult to change the flow into the opening of the air leakage gap. Thereby, the air leakage between the centrifugal impeller 31 and the air duct cover 2 is effectively reduced, and the energy efficiency and heat exchange effect of the air conditioner are ensured.

In order to further improve the anti-leakage effect, the anti-leakage convex edge is annular, and the anti-leakage convex edge is located on the inner ring side of the windshield rim 312. Since the windshield rim 312 and the air leakage preventing rib are simultaneously provided, a double anti-leakage protection is formed, which further reduces the air leakage amount. Since the anti-leakage convex edge has the function of guiding air at the same time, when the anti-leakage convex edge is in contact with the intake wind before the wind-shielding protrusion 312, the anti-leakage effect can be optimized, and the air duct cover 2 is fixed to the centrifugal impeller 31. The effect of coating and sealing.

Of course, it is also possible to sequentially arrange the windshield ridge 312 and the air leakage rim along the air leakage direction. However, the air leakage prevention effect of the air conditioner thus installed is relatively poor.

In the present invention, there are a plurality of air guiding ports 21, a plurality of air leakage preventing structures, and a plurality of centrifugal impellers 31, and a plurality of centrifugal impellers 31, a plurality of air guiding ports 21, and a plurality of air leakage preventing structures are provided in one-to-one correspondence. Since each of the diversion ports 21 corresponds to The above-mentioned anti-leakage structure thus ensures the overall air leakage prevention performance of the air conditioner. In the preferred embodiment shown in FIG. 10, the air guiding ports 21 are two, and the two air guiding ports 21 are correspondingly provided with the above-mentioned air leakage preventing structure.

Preferably, the plurality of air passages 11 are provided separately, and the plurality of air passages 11 are disposed independently of each other, and the plurality of air passages 11 are provided in one-to-one correspondence with the plurality of centrifugal impellers 31. Since the plurality of air passages 11 are disposed independently of each other, the airflow disorder caused by the operation of the plurality of centrifugal impellers 31 is effectively prevented, and the air outlet reliability of the air conditioner is improved.

In order to further improve the energy efficiency and control diversity of the air conditioner, the evaporators in the present invention are plural, and the plurality of evaporators are disposed in one-to-one correspondence with the plurality of air guiding ports 21. The use of multiple evaporators reduces the quality of a single evaporator, which increases the ease of installation of the air conditioner and reduces maintenance complexity and maintenance when a single evaporator fails, requiring only a single evaporator to be repaired and replaced. Cost and extend the life of the air conditioner. In addition, the operating power of the air conditioner can be adjusted by controlling the operation of a single evaporator or part of the evaporator to meet different usage requirements.

Preferably, the evaporator is circular and the evaporator is shaped to conform to the shape of the flow opening 21. Since the shape of the evaporator is set to be compatible with the shape of the flow guiding port 21, it is possible to make the parts on the evaporator have the characteristics of good running performance, and the heat exchange efficiency of each part of the evaporator is uniform. In addition, the circular evaporator can effectively improve heat exchange efficiency, improve the energy efficiency of the air conditioner, reduce power consumption, and save materials, reduce cost waste, and reduce space.

It should be noted that in order to ensure the uniformity of the refrigerant flow rate, the pressure drop inside the tube, and the temperature distribution in each part of the evaporator, it is necessary to combine the refrigerant flow rate of different flow paths, the pressure drop inside the tube, and the wind speed distribution on the surface of the evaporator. Design pipe diameter and chip spacing. Efficient heat transfer is achieved by a combination of different pipe diameters and different chip sizes. In addition, in order to facilitate the processing and manufacturing, the U tube of the evaporator is on the same side, and the other side of the tube is subjected to a process such as welding.

In the present embodiment, the air duct 11 includes a first air passage 111 and a second air passage 112 that extend from the upper side to the lower side. The arrangement and function of the double duct having the first duct 111 and the second duct 112 will be described in detail below.

As shown in FIG. 4 and FIG. 24, the first air passage 111 and the second air passage 112 are symmetrically disposed, wherein the first air passage 111 has a first upper air outlet 1211 corresponding to the upper side and a first corresponding to the lower side. The lower air outlet 1221 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 form 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, a first upper volute 151 is disposed at the first upper air outlet 1211, a first lower volute 153 is disposed at the first lower air outlet 1221, and a second upper vent is provided at the second upper air outlet 1212. A second lower volute 154 is disposed at the volute tongue 152 and the second lower air outlet 1222. Specifically, the first lower volute 153 and the second lower volute 154 respectively protrude toward each other, and the first upper volute 151 and the second upper volute 152 respectively protrude in a direction away from each other. The air conditioner of this 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 passage 111, and the second centrifugal fan 3b is disposed in the second air passage 112.

In the present application, the first lower volute 153 and the second lower volute 154 respectively protrude toward each other, and the first upper volute 151 and the second upper volute 152 protrude in a direction away from each other. The direction in which the first lower volute 153 and the second lower volley 154 are disposed determines the direction of the first air duct 111 at the first lower air outlet 1221 and the second air passage 112 at the second lower air outlet 1222. The direction of the wind is concentrated. Thus, when the air conditioner is in the heating state, the hot air can flow out from the first lower air outlet 1221 and the second lower air outlet 1222 of the air conditioner, the hot air flowing out from the first air passage 111 and the second air passage 112. Outflow The hot air will converge to improve the heating effect and improve the heating performance of the air conditioner. At the same time, since the hot air density is slightly lower, the hot air is slowly raised from the first lower air outlet 1221 and the second lower air outlet 1222 of the air conditioner, so that the overall thermal cycle in the room can be formed, and the temperature comfort is good. Therefore, the technical solution of the embodiment can solve the problem of slow heating speed of the air conditioner in the prior art.

Further, when the air conditioner is cooled, the cold air can be ventilated from the first upper air outlet 1211 and the second upper air outlet 1212. The wind blows upwards to prevent the direct blow to the human body, and because of the high density of the gas at a low temperature, the cold wind will gradually sink and accelerate the cooling rate. Therefore, the air conditioner of the embodiment has the characteristics of good cooling effect and high human body comfort.

The air conditioner of this embodiment has four air outlets, that is, a first upper air outlet 1211, a first lower air outlet 1221, a second upper air outlet 1212, and a second lower air outlet 1222. As a preferred embodiment, an air baffle may be provided at each air outlet. In this way, the air outlet outlet control can be performed according to the needs of the user. Specifically, during cooling or heating, four air outlets can be opened at the same time to maximize the air volume. Of course, in consideration of the comfort angle, the first upper air outlet 1211 and the second upper air outlet 1212 may be closed by the air baffle when heating, so that the hot air is blown only from the first lower air outlet 1221 and the second lower air outlet 1222. . The air blower can be used to close the first lower air outlet 1221 and the second lower air outlet 1222 to cool the air, so that the hot air is blown only from the first upper air outlet 1211 and the second upper air outlet 1212.

As shown in FIG. 4, in the technical solution of the embodiment, the first upper volute tongue 151 and the second upper volley 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. The first lower volute 153 and the second lower volute 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. At the same time, the distance between the first upper volute 151 and the second upper volute 152 is smaller than the distance between the first lower volute 153 and the second lower volute 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 large in size, thereby effectively ensuring the air volume.

As shown in FIG. 6, in the technical solution of the present embodiment, the blade rotation direction of the first centrifugal fan 3a and the blade rotation direction of the second centrifugal fan 3b are opposite. Specifically, when the first centrifugal fan 3a and the second centrifugal fan 3b of the air conditioner operate, the first centrifugal fan 3a and the second centrifugal fan 3b respectively drive the airflow and generate a certain impact force to the air conditioner. By rotating the blades of the first centrifugal fan 3a to the opposite directions of the blades of the second centrifugal fan 3b, the impact force generated on the air conditioner when the first centrifugal fan 3a is operated and the second centrifugal fan 3b can be operated. The impact force generated on the air conditioner is reversed. In this way, the air conditioner can be evenly stressed and operated smoothly, and the noise can be effectively reduced.

Preferably, when the air conditioner is in operation, the rotation direction of the first centrifugal fan 3a and the rotation direction of the second centrifugal fan 3b are opposite, thereby causing the impact forces generated by the first centrifugal fan 3a and the second centrifugal fan 3b on the air conditioner to cancel each other. .

As shown in FIG. 7, in the technical solution of the embodiment, the air conditioner further includes a first upper air sweeping mechanism 161 and a second upper air sweeping mechanism 162, and a first upper air sweeping mechanism 161 and a second upper wind sweeping mechanism 162. Form the upper sweeping mechanism. The first upper air blowing mechanism 161 is located at the first upper air outlet 1211, and the second upper air cleaning mechanism 162 is located at the second upper air outlet 1212. The first upper air breeze mechanism 161 and the second upper air breeze mechanism 162 are used to change the wind direction, so that the air outlet direction at the first upper air outlet 1211 and the second upper air outlet 1212 is more flexible.

Specifically, by controlling the directions of the first upper sweeping mechanism 161 and the second upper sweeping mechanism 162, the first upper sweeping mechanism 161 and the second upper sweeping mechanism 162 selectively have the following operational 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 air breeze mechanism 161 and the second upper air breeze mechanism 162 are both concentrated toward the inner side;

The first upper air baffle mechanism 161 and the second upper air baffle mechanism 162 are both diffused and guided outward.

When the air conditioner is working, any of the above working states can be selected. This makes the direction of the wind more flexible to meet the needs of temperature adjustment in different environments.

Preferably, the first upper air breeze mechanism 161 and the second upper air breeze mechanism 162 are respectively controlled such that the above three operating states are more easily realized.

As shown in FIG. 7, in the technical solution of the embodiment, the air conditioner further includes a first lower air breeze mechanism 163 and a second lower air breeze mechanism 164, a first lower air breeze mechanism 163 and a second lower air breeze mechanism 164. Form the lower sweeping mechanism. The first lower air blowing mechanism 163 is located at the first lower air outlet 1221, and the second lower air cleaning mechanism 164 is located at the second lower air outlet 1222. The first lower air breeze mechanism 163 and the second lower air breeze mechanism 164 are used to change the air outlet direction, so that the air outlet direction at the first lower air outlet 1221 and the second lower air outlet 1222 is 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 operational states:

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

The first lower sweeping mechanism 163 and the second lower sweeping mechanism 164 are both concentrated toward the inner side;

The first lower wind sweeping mechanism 163 and the second lower wind sweeping mechanism 164 are both diffused and guided outward.

Preferably, the first lower sweeping mechanism 163 and the second lower sweeping mechanism 164 are respectively controlled such that the above three operating states are more easily realized.

In the present 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 portion 13 is disposed between the first upper volute 151 and the second upper volute 152. The electrical box mounting portion 13 is provided with an electrical box 131 with a circuit board, and the motor wires of the first centrifugal fan 3a and the second centrifugal fan 3b can be connected to the circuit board to realize the first centrifugal fan 3a and the second The motor of the centrifugal fan 3b is powered, and the above-mentioned wiring is simple and reliable. Meanwhile, in the present application, the electrical box mounting portion 13 is disposed in a cavity formed between the first upper volute 151 and the second upper volute 152, effectively utilizing the use space of the bottom case 1, thereby making the air conditioner The internal structure is more compact, making the air conditioner slimmer.

It should be noted that, in this embodiment, the electrical component disposed in the electrical box 131 is a circuit board. In other embodiments not shown in the figure, other electrical devices capable of being placed in the electrical box 131 may also be provided according to specific needs. The electrical components of the fan's motor.

As shown in FIG. 5 and FIG. 10, in the air conditioner of this embodiment, the air conditioner further includes an air duct cover 2 connected to the bottom case 1, and the first centrifugal fan 3a and the second centrifugal fan 3b are located in the bottom case 1 Between the air duct cover 2 and the duct cover 2, the duct cover 2 has a first air guiding port 211 corresponding to the first centrifugal fan 3a and a second air guiding port 212 corresponding to the second centrifugal fan 3b. Above wind The first air guiding port 211 and the second air guiding port 212 on the track cover 2 can respectively guide the air flow passing through the first centrifugal fan 3a and the second centrifugal fan 3b. Further, the duct cover 2 separates the bottom case 1 from other components of the air conditioner (the evaporator in this embodiment), enhancing the mounting stability of the first centrifugal fan 3a and the second centrifugal fan 3b.

As shown in FIG. 1 , FIG. 5 and FIG. 10 , in the air conditioner of the embodiment, the air duct cover 2 is provided with a first routing channel 22 , and the first routing channel 22 is disposed on the air duct cover 2 . The first wire passage 22 communicates with the inner cavity of the electrical box mounting portion 13 away from the side of the bottom case 1. In the present embodiment, the right side of the duct cover 2 is provided with a drive box 23 in which electrical components such as a driving power source are disposed. The electric wire taken out from the above-mentioned driving power source can extend into the inner cavity of the electrical box mounting portion 13 through the first wiring passage 22, and is connected and electrically connected to the circuit board in the electrical box 131, thereby supplying power to the circuit board, thereby driving The first centrifugal fan 3a and the second centrifugal fan 3b operate. At the same time, the first routing channel 22 can make the circuit arrangement more regular, thereby effectively preventing the wires from interfering with other components and ensuring electrical safety. It should be noted that the drive box 23 is not limited to be disposed on the right side of the air duct cover 2, and in other embodiments not shown in the drawings, the drive box 23 may be disposed on the air duct cover 2 The position, for example, is provided on the left side of the duct cover 2, and in the above case, the first routing passage 22 is also disposed on the left side of the duct cover 2, respectively.

As shown in FIG. 10 and FIG. 11, in the air conditioner of this embodiment, the first wire passage 22 is a first wireway. The first wire trough described above has a simple structure and is easy to manufacture and manufacture. Of course, the first routing channel 22 is not limited to the routing slot. In other embodiments not shown in the figure, other routing structures may also be used, for example, may be provided as a routing hole.

As shown in FIG. 10 and FIG. 11, in the air conditioner of this embodiment, the first wireway includes a strong wire slot and a weak wire slot, and a partition 221 is provided between the strong wire slot and the weak wire slot. The above structure can separate the strong electric wire from the weak electric wire to prevent electromagnetic interference between the strong electric wire and the weak electric wire.

As shown in FIGS. 10 and 11, in the air conditioner of the present embodiment, the partition plate 221 is provided with a wiring notch 2211. The above structure makes the wire arrangement more convenient and is advantageous for improving the wiring efficiency.

It should be noted that, in this embodiment, the first cable trough is a split structure that is detachably disposed on the air duct cover 2, and may select different lengths or different shapes according to the specific requirements of the traces. Trunking. Of course, the first wire trough is not limited to the above-mentioned split structure. In other embodiments not shown in the drawings, the first wire trough and the air duct cover 2 may be provided as a unitary structure.

As shown in FIG. 10, in the air conditioner of the present embodiment, a relief 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 2 and the bottom case 1 from interfering with each other during installation.

As shown in FIG. 4 and FIG. 5, in the air conditioner of this embodiment, the bottom case 1 is provided with a duct wall between the first centrifugal fan 3a and the second centrifugal fan 3b, and the air duct wall is provided with a first The second routing channel 1321 has a third routing channel 1322 disposed between the air duct wall and the first centrifugal fan 3a, and the bottom housing 1 is disposed between the air duct wall and the second centrifugal fan 3b. The four routing channels 1323 communicate with the third routing channel 1322 and the fourth routing channel 1323, respectively. The second routing channel 1321 is in communication 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 through the third routing passage 1322 and the second routing passage 1321 to the inner cavity of the electrical box mounting portion 13, and to the circuit board in the electrical box 131. Connected and turned on, thereby powering the motor of the first centrifugal fan 3a, driving the first centrifugal fan 3a to rotate. Similarly, the motor line of the second centrifugal fan 3b extends through the fourth routing channel 1323 and the second routing channel 1321 to the inner cavity of the electrical box mounting portion 13, and The circuit board in the electrical box 131 is connected and turned on, thereby supplying power to the motor of the second centrifugal fan 3b, and driving the second centrifugal fan 3b to rotate. At the same time, the above-mentioned routing channel can make the circuit arrangement more regular, thereby effectively preventing the motor line from interfering with other components and ensuring electrical safety.

As shown in FIG. 4 and FIG. 5, in the air conditioner of the embodiment, 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 It is the fourth cable trough. The second wire trough, the third wire trough and the fourth wire trough are simple in structure and easy to 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. In other embodiments not shown in the figure, other routing structures may also be used, for example, Set to the wire hole.

As shown in FIG. 5, in the air conditioner of this embodiment, a first cover 133 is disposed on the third wireway, and a second cover 134 is disposed on the fourth wireway. The above structure can prevent the motor wires in the third wire trough and the fourth wire trough from being exposed, thereby ensuring that the fan blades of the centrifugal fan are not twisted when the blades rotate, and the motor wires are prevented from being damaged. At the same time, the integrity of the air duct can be ensured, so that the air passage does not generate abnormal noise.

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

In this embodiment, the third wireway slot and the fourth wireway slot are disposed with a positioning post and a screw post at an end near the second wireway slot, and the third wireway slot and the fourth wireway slot are away from the second. A slot is provided at one end of the wire trough. The first connecting portion 1331 and the third connecting portion 1341 are respectively provided with screw holes, and the first connecting portion 1331 cooperates with the positioning post and the screw column on the third wire trough, and the third connecting portion 1341 and the fourth connecting line The positioning post and the screw column on the groove cooperate. The second connecting portion 1332 and the fourth connecting portion 1342 are both tabs, and the second connecting portion 1332 cooperates with the slot on the third routing slot, and the slot on the fourth connecting portion 1342 and the fourth routing slot Match. The above structure facilitates the disassembly and assembly between the first cover 133 and the second cover 134 and the bottom case 1. Of course, the structures of the first cover 133 and the second cover 134 are not limited thereto, and in other embodiments not shown in the drawings, the first cover 133 and the second cover 134 may also be capable of achieving a fixing function. Other structures.

In this embodiment, the air duct cover 2 is disposed on the two air ducts 11, specifically, the first air duct 111 and the second air duct 112. The air duct cover 2 has two air guiding ports 21, and the two air guiding ports 21 include a first air guiding port 211 corresponding to the first air channel 111 and a second air guiding port 212 corresponding to the second air channel 112. . The first centrifugal fan 3a is disposed in the first air duct 111 and disposed opposite to the first air guiding port 211. The second centrifugal fan 3b is disposed in the second air duct 112 and disposed opposite to the second air guiding port 212. The evaporator 4 is disposed on a side of the duct cover 2 remote from the bottom case 1, and each of the flow ports 21 is disposed opposite to the evaporator 4. In this embodiment, the air conditioner indoor unit has a plurality of air ducts 11, each of which is provided with a centrifugal fan 3, and the plurality of centrifugal fans 3 are used for heat exchange between the evaporator 4 and the external environment, thereby solving the prior art. There is a problem in air conditioning and cooling due to insufficient air volume.

Preferably, the evaporator 4 is overlapped with the duct cover 2 and is located on the side of the duct cover 2 facing away from the bottom casing 1. The air duct 11 is formed between the duct cover 2 and the bottom case 1 and extends along the duct cover 2, and the air guiding port 21 is formed on the duct cover 2 and faces the evaporator 4, which is arranged in a stack The structure is beneficial for reducing the thickness of the indoor unit of the air conditioner and reducing the space occupied by the indoor unit of the air conditioner.

As shown in FIG. 19, FIG. 20 and FIG. 20a, the air conditioner of this embodiment further includes a base 5 for carrying the evaporator 4, and the base 5 is provided with a positioning groove 51 adapted to the evaporator 4, in the positioning groove. A load-bearing table 52 for the evaporator 4 is disposed on the side wall of the 51, and a drain tank is disposed on the load-bearing table 52. A support riser 53 for supporting the heat exchange unit is disposed in the set groove 51, and the support riser 53 includes a plurality of support plate sections spaced apart. The spacing between adjacent two support plate sections is used to supply condensate water to avoid excessive water levels in the local condensate.

As shown in FIG. 19 and FIG. 20, a water discharge port is provided in the installation groove 51, and a water discharge pipe 54 for guiding the condensed water to the outside of the indoor unit of the air conditioner is connected to the water discharge port. The carrying platform 52 is provided with a plurality of sumpes along the evaporator 4 for allowing the condensed water to smoothly flow to the bottom of the arranging tank 51 for uniform introduction to the outside of the indoor unit of the air conditioner. The base 5 is attached to the duct cover 2 and is located on the side of the duct cover 2 that faces away from the bottom casing 1. The base 5 may be integrally formed with the duct cover 2 or may be provided separately. The evaporator 4 includes an evaporator body and a bottom frame. The bottom frame is disposed below the evaporator body, and the bottom frame is provided with a plurality of drainage holes. The condensed water generated on the evaporator body flows through the drain hole to the seating groove 51 of the base 5 disposed below the evaporator body, and is then led to the outside of the indoor unit of the air conditioner by the water conduit 54. Preferably, the plurality of drainage holes are divided into a plurality of drainage holes, and the adjacent two rows of drainage holes are alternately arranged. The distance between adjacent two drainage holes in the direction of the drain hole row is reduced, which contributes to the smooth discharge of the condensed water.

The air conditioner of this embodiment further includes a display connected to the electrical box, the display for displaying parameters such as an operating state of the indoor unit of the air conditioner, an indoor temperature, and the like.

The present application also provides a method of controlling an air conditioner for controlling the above air conditioner. As shown in FIG. 27, the control method according to this embodiment includes a booting step and a shutdown step, wherein the booting step includes the following steps:

Step S10: pushing the front panel 6 outward in a direction away from the bottom case 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: moving the upper sweeping mechanism and/or the lower sweeping mechanism.

In the present embodiment, the above-described steps S10, S30, S40, and S60 are sequentially performed. Of course, those skilled in the art know that as an alternative embodiment, step S30 and step S40 can be performed simultaneously.

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

Step S20: The upper air inlet flap 81 is pivoted to close the upper air inlet 61 and/or the lower air inlet flap 82 to close the lower air inlet 62 according to the air outlet state of the upper air outlet 121 and the lower air outlet 122.

Of course, those skilled in the art know that, as an optional implementation manner, the foregoing step S20 may also be performed between step S40 and step S60.

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

Step S50: The upper air outlet baffle 91 is pivoted according to the air outlet state of the upper air outlet and the lower air outlet to close the upper air outlet 121 or the lower air outlet 92 to pivot to close the lower air outlet 122.

It should 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 present embodiment, the front panel 6 is first moved, so that other moving parts can be effectively avoided, which ensures that the thickness of the air conditioner is the thinnest. In addition, the movement of the upper air deflector 171 and/or the lower air deflector 173 prior to the upper air breeze mechanism and/or the lower air baffle mechanism can ensure that the motion mechanism does not interfere with each other, which is advantageous for the overall size of the air conditioner to be reduced.

As shown in FIG. 28, in this embodiment, the shutdown step includes the following steps:

Step S100: stopping the centrifugal fan 3 from rotating;

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

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

Step S600: The front panel 6 is recovered inward in the 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 this embodiment, the following steps are further included between step S300 and step S500:

Step S400: The upper air inlet flap 81 is pivoted to a position to avoid the upper air inlet 61, and/or the lower air inlet flap 82 is pivoted to a position to avoid the lower air inlet 62.

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

Step S200: pivoting the upper air damper 91 to a position to avoid the upper air inlet 61, and/or the lower air damper 92 pivoting to a position to avoid the lower air inlet 62.

Applying the control method of the present embodiment, the upper air baffle mechanism and/or the lower air baffle mechanism are stopped from moving before the upper air deflector 171 and/or the lower air deflector 173, and finally the front panel 6 is recovered. This ensures that there is no interference between the moving mechanisms.

Of course, those skilled in the art know that, as an optional implementation manner, the foregoing steps S200, S300, S400, and S500 may also be performed simultaneously. Alternatively, only step S200 and step S300 are performed in synchronization. Of course, in order to avoid interference, the air conditioners of the above two embodiments may be slightly larger in size.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

An air conditioner, comprising:

a bottom case (1) having oppositely disposed upper sides and a lower side, the bottom case (1) being provided with a first air passage (111) and a second air passage extending from the upper side to the lower side (112), the first air duct (111) and the second air duct (112) are symmetrically disposed, and the first air duct (111) has a first upper air outlet corresponding to the upper side (1211) And a first lower air outlet (1221) corresponding to the lower side, the second air passage (112) having a second upper air outlet (1212) corresponding to the upper side and corresponding to the lower side a second lower air outlet (1222), a first upper volute (151) is disposed at the first upper air outlet (1211), and a first lower volute is disposed at the first lower air outlet (1221) (153), a second upper volute (152) is disposed at the second upper air outlet (1212), and a second lower volute (154) is disposed at the second lower air outlet (1222), wherein The first upper volute tongue (151) and the second upper volley tongue (152) respectively protrude away from the direction, the first lower volute tongue (153) and the second lower volute tongue (154) Protruding in a direction close to each other;

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

a second centrifugal fan (3b) disposed in the second air passage (112);

An electrical box mounting portion (13) is disposed between the first upper volute (151) and the second upper volute (152).
The air conditioner according to claim 1, characterized in that said air conditioner further comprises a duct cover (2) connected to said bottom casing (1), said first centrifugal fan (3a) and said The second centrifugal fan (3b) is located between the bottom casing (1) and the air duct cover (2), and the air duct cover (2) has a corresponding first centrifugal fan (3a) a first air guiding port (211) and a second air guiding port (212) corresponding to the second centrifugal fan (3b).
The air conditioner according to claim 2, wherein the air duct cover (2) is provided with a first wire passage (22), and the first wire passage (22) is disposed in the wind The side of the track cover (2) remote from the bottom case (1), the first wire path (22) is in communication with the inner cavity of the electrical box mounting portion (13).
The air conditioner according to claim 3, wherein said first wire passage (22) comprises a strong wire groove and a weak wire groove, and a partition is provided between said strong wire groove and said weak wire groove ( 221) Separated.
The air conditioner according to claim 4, wherein the partition (221) is provided with a wiring notch (2211).
The air conditioner according to claim 2, characterized in that the air passage cover (2) is formed with a avoidance notch (222) corresponding to the position of the electrical box mounting portion (13).
The air conditioner according to claim 1, characterized in that the bottom casing (1) is provided with a duct wall between the first centrifugal fan (3a) and the second centrifugal fan (3b) a second routing channel (1321) is disposed in the air duct wall, and the bottom casing (1) is provided with a third routing line corresponding to the air duct wall and the first centrifugal fan (3a) a channel (1322), wherein the bottom case (1) is provided with a fourth routing channel (1323) corresponding to the air duct wall and the second centrifugal fan (3b), and the second routing channel (1) 1321) is in communication with the third routing channel (1322) and the fourth routing channel (1323), respectively.
The air conditioner according to claim 7, wherein the second routing channel (1321) is a second routing slot, and the third routing channel (1322) is a third routing slot, The fourth routing channel (1323) is a fourth routing slot.
The air conditioner according to claim 8, wherein the third wireway is provided with a first cover (133), and the fourth wireway is provided with a second cover (134).
The air conditioner according to claim 9, wherein the first end of the first cover plate (133) is provided with a first connecting portion (1331), and the second end of the first cover plate (133) A second connecting portion (1332) is disposed, the first end of the second cover plate (134) is provided with a third connecting portion (1341), and the second end of the second cover plate (134) is provided with a fourth portion Connection portion (1342).
The air conditioner according to claim 10, wherein the first cover plate (133) is provided with a first wire receiving groove toward a side of the bottom case (1), and the second cover plate (134) A second wire receiving groove is provided toward one side of the bottom case (1).