CN106247595A - Wall-mounted spherical indoor set and control method thereof - Google Patents

Abstract

The invention discloses a wall-mounted spherical indoor unit and a control method thereof, wherein the wall-mounted spherical indoor unit comprises: a housing having a main air inlet, a main air outlet, and a main air inlet connecting the main air inlet and the main air outlet. The air duct, the main air outlet is arranged in a rectangular shape; the air guide is arranged at the main air outlet or in the main air duct, and the air guide has an auxiliary air inlet, an auxiliary air outlet and a connection between the The secondary air duct of the auxiliary air inlet and the auxiliary air outlet, the auxiliary air inlet communicates with the main air duct; the airflow driving device is used to drive airflow from the auxiliary air inlet into the auxiliary air duct. In the technical solution of the present invention, through the setting of the auxiliary air duct system, the change of the direction of the airflow is completed under the action of air pressure, avoiding the extrusion and friction between the airflow and the entity, thereby greatly reducing the energy consumption of the airflow during the direction change process , which is conducive to increasing the air volume and maintaining the wind speed, which is beneficial to the user to send the airflow to a designated location far away.

Description

Wall-mounted spherical indoor unit and its control method

technical field

The invention relates to the technical field of air conditioning, in particular to a wall-mounted spherical indoor unit and a control method thereof.

Background technique

In order to send the wind to the area designated by the user accurately, the existing air conditioners are all provided with air deflectors. The wind deflector is set at an angle between its surface and the flow direction of the wind to forcibly change the flow direction of the wind. Due to the existence of the wind deflector, the resistance of the wind flow is increased, the air volume is lost, and it is not conducive to the long-distance transmission of the wind.

Contents of the invention

The main purpose of the present invention is to provide a wall-mounted spherical indoor unit, which aims to reduce the resistance of wind flow, so as to increase the air speed and air volume of the air conditioner.

In order to achieve the above object, the wall-mounted spherical indoor unit proposed by the present invention includes:

The casing has a main air inlet, a main air outlet, and a main air passage connecting the main air inlet and the main air outlet, and the main air outlet is arranged in a rectangular shape; the casing includes a surface shell, and the surface shell is imitated hemispherical setting;

A deflector is arranged in the main air passage corresponding to the main air outlet, the deflector has a secondary air inlet, a secondary air outlet, and a secondary air passage connecting the secondary air inlet and the secondary air outlet, and the secondary The air inlet communicates with the main air duct;

The airflow driving device is used to drive airflow from the auxiliary air inlet into the auxiliary air duct.

Preferably, the deflector includes a suction part and a deflector, the suction part has a suction chamber, and the auxiliary air inlet is opened on the suction part and communicates with the suction chamber;

The guide part has a guide cavity, the auxiliary air outlet is opened on the guide part and communicates with the guide cavity, and the guide cavity communicates with the suction cavity to form the secondary air outlet. road.

Preferably, the air suction portion is arranged in a ring shape, the auxiliary air inlet is arranged in a ring shape along the air suction portion, and the shape of the area surrounded by the air suction portion corresponds to the shape of the main air inlet.

Preferably, the part of the suction portion facing the face shell protrudes toward the face shell.

Preferably, the surface of the suction part facing the face shell is attached and fixed to the wall face of the face shell facing the air guide.

Preferably, the suction part is integrally formed with the face shell.

Preferably, an end of the air guide part away from the air suction part extends into the main air duct, and the auxiliary air outlet communicates with the main air duct.

Preferably, the airflow driving device is fixedly connected to an end of the air guide part away from the air suction part, and the air outlet direction of the airflow driving device is toward the main air outlet.

Preferably, the end of the air guide part away from the air suction part extends to the outside of the shell of the wall-mounted spherical indoor unit.

Preferably, there are multiple guide parts, and the guide parts are evenly arranged on the suction part; the airflow driving device includes a plurality of centrifugal fans, and the centrifugal fans are respectively arranged on the guide parts The end of the flow part away from the suction part.

Preferably, several baffles are arranged in the air suction chamber to separate the air suction chamber to form several sub-chambers, and the air-guiding chamber of the air-guiding part communicates with one of the sub-chambers to form a sub-cavity. Secondary duct.

The present invention further provides a control method for a wall-mounted spherical indoor unit. The wall-mounted spherical indoor unit has a main air duct and an auxiliary air duct connected to the main air duct. The corresponding auxiliary air duct is provided with a centrifugal fan. The wall-mounted spherical indoor unit The control method of the spherical indoor unit includes the following steps:

Judging whether the command currently received is an air guidance command;

If so, turn on the centrifugal fan to form a negative pressure at the connection between the main air duct and the auxiliary air duct.

Preferably, the auxiliary air duct includes an upper auxiliary air duct, a lower auxiliary air duct, a left auxiliary air duct and a right auxiliary air duct, and each auxiliary air duct is correspondingly provided with a centrifugal fan;

The step of opening the centrifugal fan includes:

Turn on one or more of the centrifugal fans corresponding to the upper auxiliary air duct, the lower auxiliary air duct, the left auxiliary air duct and the right auxiliary air duct.

In the technical solution of the present invention, when the airflow driving device is turned on, the auxiliary air duct system sucks air from the position of the auxiliary air inlet, so that the position of the main air outlet corresponding to the auxiliary air inlet forms a certain negative pressure, and under the action of air pressure, The wind direction at the main air outlet is changed, so that the airflow in the main air duct deviates towards the direction with lower air pressure, that is, it deviates from the front direction to one side, so as to achieve the purpose of adjusting the air outlet direction; by adjusting the power of the airflow drive device , can adjust the size of the negative pressure, thereby adjusting the size of the wind direction deviation, that is, adjust the direction of the wind; through the negative pressure guide, the direction of the airflow is changed under the action of the air pressure, avoiding the extrusion and friction between the airflow and the entity , thereby greatly reducing the energy consumption of the airflow during the direction change process, which is conducive to increasing the air volume, maintaining the wind speed, and helping the user to send the airflow to a designated location farther away. At the same time, compared with the wind deflector, the Not limited by the rotation angle of the wind deflector, the wind deflecting range in the present invention is greatly increased.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is a schematic structural view of an embodiment of the wall-mounted spherical indoor unit of the present invention;

Fig. 2 is a schematic diagram of the explosion structure of Fig. 1;

Fig. 3 is a structural schematic diagram of an embodiment of the flow guide of the wall-mounted spherical indoor unit of the present invention;

Fig. 4 is a structural schematic diagram of another angle of the flow guide of the wall-mounted spherical indoor unit of the present invention.

Explanation of reference numbers:

label name label name 100 case 110 Surface shell 120 main air inlet 130 main air outlet 200 deflector 210 Suction part 220 Diversion 230 Auxiliary air inlet 240 Auxiliary outlet 300 air drive

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions involving "first", "second" and so on in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

An air conditioner generally includes an indoor unit and an outdoor unit, wherein the indoor unit generally includes a casing, a heat exchanger assembly, an air supply assembly, and an air guide assembly, wherein the casing has an air inlet, an air outlet, and an air outlet located between the air inlet and the air outlet. In the air channel between, the heat exchange component and the air supply component are arranged in the air channel, and the air guiding component is arranged in the air channel or at the air outlet. Wherein, the heat exchange assembly includes a heat exchanger and a bracket for installing the heat exchanger in the air duct, and the heat exchanger is connected to the refrigerant circulation system of the air conditioner. The air supply assembly includes a wind wheel (cross-flow wind wheel or axial flow wind wheel), a driving motor for driving the wind wheel, and in some embodiments, a transmission device that transmits the drive of the motor to the wind wheel. The wind deflector assembly includes a wind deflector, a swing blade, and a drive motor for driving the wind deflector and the swing blade, wherein the swing of the wind deflector realizes wind guidance up and down, and the swing of the swing blade realizes left and right wind guidance. Of course, in some embodiments, The air deflector and the swing blade can be coupled to supply air, that is, to supply air from up and down and from left to right at the same time. The shape of the housing can be similar to a cuboid (such as a traditional wall-mounted air-conditioning indoor unit), cylindrical (such as an air-conditioning cabinet), or spherical (such as a wall-mounted spherical air-conditioning indoor unit). In this application, a wall-mounted spherical indoor unit is mainly provided to realize negative pressure air guidance in the secondary air duct.

The specific structure of the wall-mounted spherical indoor unit will be mainly described below.

Referring to Figures 1 to 4, in the embodiment of the present invention, the wall-mounted spherical indoor unit includes:

The housing 100 has a main air inlet 120, a main air outlet 130, and a main air passage connecting the main air inlet 120 and the main air outlet 130, and the main air outlet 130 is arranged in a rectangular shape; the housing 100 includes a face shell 110, the face shell 110 is arranged in a hemispherical shape;

The air guide 200 is arranged in the main air passage corresponding to the main air outlet 130, and the air guide 200 has an auxiliary air inlet 230, an auxiliary air outlet 240, and a connection between the auxiliary air inlet 230 and the auxiliary air outlet 240. Secondary air duct, the auxiliary air inlet 230 communicates with the main air duct;

The airflow driving device 300 is used to drive airflow from the auxiliary air inlet 230 into the auxiliary air channel.

Specifically, in this embodiment, the surface shell 110 is arranged in a pseudo-hemispherical shape, and the pseudo-hemispherical shape is based on a hemisphere, and has a concave or protruding part on the spherical surface according to actual requirements. The main air inlet 120 is set on the side of the casing 100 facing away from the user, of course, in some embodiments, it can also be set on the side or top of the casing 100 . The main air outlet 130 is opened on the spherical surface of the face shell 110 , and the main air outlet 130 can have various shapes, taking a pseudo-circle as an example. The imitation circle is based on a circle, and has a concave or convex part on the circumference according to actual needs.

The deflector 200 is used to form a negative pressure at the main air outlet 130 . The deflector 200 is arranged corresponding to the main air outlet 130 , and can be arranged inside the main air outlet 130 , or can be arranged on a side of the main air outlet 130 , and of course, can also abut against the side wall of the main air outlet 130 . The auxiliary air inlet 230 communicates with the main air outlet 130 , so that the airflow at the main air outlet 130 can enter the auxiliary air duct from the auxiliary air inlet 230 . The auxiliary air outlet 240 can be connected with the main air duct to discharge the air in the auxiliary air duct into the main air duct. The auxiliary air outlet 240 can also be arranged outside the housing 100 to discharge the air in the auxiliary air duct to the wall-mounted spherical indoor unit.

The airflow driving device 300 is a driving device for driving airflow such as a centrifugal blower or a fan. The airflow driving device 300 is arranged in the auxiliary air duct or corresponding to the auxiliary air outlet 240 , so that part of the air flow in the main air duct enters the auxiliary air duct from the auxiliary air inlet 230 , and at the same time discharges the air flow in the auxiliary air duct from the auxiliary air outlet 240 .

When the airflow driving device 300 is turned on, through the auxiliary air duct system, the air is sucked from the position of the auxiliary air inlet 230, so that the position of the main air outlet 130 corresponding to the auxiliary air inlet 230 forms a certain negative pressure. The wind direction at the tuyere 130 is changed, so that the airflow in the main air duct deviates toward the direction of the smaller air pressure, that is, deviates from the front direction to one side, so as to achieve the purpose of adjusting the air outlet direction; by adjusting the power of the airflow drive device 300 , can adjust the size of the negative pressure, thereby adjusting the size of the wind direction deviation, that is, adjust the direction of the wind; through the negative pressure guide, the direction of the airflow is changed under the action of the air pressure, avoiding the extrusion and friction between the airflow and the entity , thereby greatly reducing the energy consumption of the airflow during the direction change process, which is conducive to increasing the air volume, maintaining the wind speed, and helping the user to send the airflow to a designated location farther away. At the same time, compared with the wind deflector, the Not limited by the rotation angle of the wind deflector, the wind deflecting range in the present invention is greatly increased.

In order to discharge the airflow in the secondary air duct to a designated position, the air guide 200 includes a suction part 210 and a flow guide part 220, the suction part 210 has a suction cavity, and the secondary air inlet 230 is opened in the On the air suction part 210 and in communication with the air suction cavity;

The guide part 220 has a guide chamber, the secondary air outlet 240 is opened on the guide part 220 and communicates with the guide chamber, and the guide chamber communicates with the suction chamber to form the air guide chamber. Describe the auxiliary air duct.

Specifically, in this embodiment, the shape of the air suction cavity is not limited here, and the cross-section can be circular, square, polygonal, etc., as long as the airflow entering the secondary air passage from the main air outlet 130 passes through the auxiliary air inlet 230 It can enter the diversion cavity through the suction cavity. Similarly, the shape of the diversion chamber is not particularly limited here, and its cross section is taken as a square or a circle as an example. The airflow flows out from the main air duct, and when it enters the main air outlet 130, part of the airflow is sucked into the suction chamber by the suction port, and then guided by the guide chamber to the designated position. Through the setting of the suction chamber and the guide chamber, the airflow sucked in from the main air outlet 130 can be conveniently guided to a designated position, which is beneficial to the discharge of the airflow in the secondary air duct.

In order to guide the air flow more evenly, the air suction part 210 is arranged in a ring shape, and the auxiliary air inlet 230 is arranged in a ring shape along the air suction part 210, and the shape of the area surrounded by the air suction part 210 is the same as The shape of the main air inlet 120 is corresponding. In this embodiment, the auxiliary air inlet 230 is opened along the inner wall of the annular air suction part 210, so that when passing through the area surrounded by the air suction part 210, it flows toward the negative pressure area of the auxiliary air inlet 230 to guide the wind. By arranging the secondary air inlet 230 in a ring shape, the airflow passing through the deflector 200 can be evenly guided.

In order to increase the space of the air suction chamber and improve the space utilization rate of the housing 100 , the part of the air suction part 210 facing the face shell 110 protrudes and extends toward the face shell 110 . By extending the air suction part 210 to the face shell 110, while reducing the distance between the air suction part 210 and the face shell 110, the volume of the air suction part 210 is increased, thereby increasing the volume of the air suction cavity, and the air flow drives When the power of the device 300 is constant, the volume of the suction chamber increases, which is beneficial to reduce the load required for the airflow in the suction chamber, making it easier for the airflow to enter the suction chamber, thereby improving the suction of the suction chamber. efficiency.

In order to improve the installation stability of the air guide member, the air suction portion 210 faces the surface of the front shell 110 , and is attached and fixed to the wall of the face shell 110 facing the air guide 200 . By adhering the surface of the air suction part 210 to the inner wall of the face shell 110, the contact area between the air guide and the face shell 110 is increased, thereby improving the stability of the air guide after installation.

Of course, in some embodiments, in order to reduce the processing of the air suction portion 210 , the air suction portion 210 is integrally formed with the face shell 110 . Even, in some embodiments, the deflector 200 can also be integrally formed with the face shell 110 .

There may be multiple extending positions of the guide part 220 , and some specific ones are given below for illustration.

The air flow from the auxiliary air outlet 240 flows into the main air duct, the end of the air guide part 220 away from the air suction part 210 extends into the main air duct, and the auxiliary air outlet 240 communicates with the main air duct. The airflow driving device 300 is fixedly connected to the end of the air guide part 220 away from the air suction part 210 , and the air outlet direction of the airflow driving device 300 is toward the main air outlet 130 .

In this embodiment, by extending the end of the air guide part 220 away from the air suction part 210 into the main air duct, the airflow flowing out from the secondary air duct flows into the main air duct, and then flows out from the main air outlet 130 along with the airflow in the main air duct. flow out. By setting the auxiliary air outlet 240 toward the main air outlet 130 , or setting the air outlet direction of the airflow driving device 300 toward the main air outlet 130 , the gas flowing out from the auxiliary air outlet 240 flows toward the main air outlet 130 . At this time, the arrangement of the airflow driving device 300 also increases the power of the air supply, which is beneficial to increase the wind speed of the air supply.

The airflow from the auxiliary air outlet 240 flows out of the housing 100 , and the end of the air guide part 220 away from the air suction part 210 extends to the outside of the housing 100 of the wall-mounted spherical indoor unit. By extending the guide part 220 to the outside of the casing 100 , the airflow in the secondary air passage is output from the casing 100 , so that the airflow in the main air passage and the airflow in the auxiliary air passage are independent of each other and do not affect each other.

In order to improve the air guiding efficiency of the air guiding element 200, the number of the air guiding parts 220 is multiple, and the air guiding parts 220 are evenly arranged on the air suction part 210; the airflow driving device 300 includes multiple centrifugal fans, and the centrifugal fans are respectively arranged at one end of the guide part 220 away from the suction part 210.

In this embodiment, one air guiding part 220 may be provided with one centrifugal fan, and may also be provided with multiple centrifugal fans. By arranging a plurality of guide parts 220 and a plurality of centrifugal fans, each guide part 220 has a centrifugal fan to exhaust it, so that a negative pressure is formed in the guide cavity, so that the airflow in the suction cavity is quickly drawn It is beneficial to improve the air guide efficiency.

In order to improve the accuracy of air diversion in the auxiliary air duct system, several flow partitions are arranged in the air suction chamber to separate the air suction chamber to form several sub-cavities. The air guide chamber of the air guide part 220 It communicates with one of the sub-chambers to form a sub-sub-air duct.

Specifically, in this embodiment, the sub-air channels are formed by connecting the sub-chambers with the guide chamber, so that each guide part 220 corresponds to a sub-air channel, that is, the air guide 200 has several independent sub-air channels. . Since the sub-sub-air ducts are independent of each other, each sub-sub-air duct corresponds to an air guide area, that is, the air guide 200 has a plurality of mutually independent air guide areas, so that the air guide 200 can control the main air outlet 130. The airflow guides the wind in multiple directions, which is beneficial to improve the accuracy of the wind guide.

The present invention further provides that the wall-mounted spherical indoor unit has a main air duct and an auxiliary air duct connected to the main air duct, and a centrifugal fan is provided corresponding to the auxiliary air duct, and the control method of the wall-mounted spherical indoor unit includes the following steps:

Judging whether the command currently received is an air guidance command;

The control module of the air conditioner receives the control command, and compares the received command with the command table pre-stored in the controller to determine whether the currently received command is an air guide command. Of course, it may also be determined according to the signal strength whether the received command is an air guide control command.

If so, turn on the centrifugal fan to form a negative pressure at the connection between the main air duct and the auxiliary air duct.

The control module of the air conditioner receives the control command, and compares the received command with the command table pre-stored in the controller to determine whether the currently received command is an air guide command. Of course, it may also be determined according to the signal strength whether the received command is an air guide control command.

For better air guiding of the air conditioner, the auxiliary air duct includes an upper auxiliary air duct, a lower auxiliary air duct, a left auxiliary air duct and a right auxiliary air duct, and each auxiliary air duct is correspondingly provided with a centrifugal fan;

The step of opening the centrifugal fan includes:

Turn on one or more of the centrifugal fans corresponding to the upper auxiliary air duct, the lower auxiliary air duct, the left auxiliary air duct and the right auxiliary air duct.

In this embodiment, it is possible to turn on the centrifugal fan corresponding to the upper auxiliary air duct, or turn on the centrifugal fan corresponding to the lower auxiliary air duct, or turn on the centrifugal fan corresponding to the left auxiliary air duct, or turn on the centrifugal fan corresponding to the upper auxiliary air duct according to actual needs. The centrifugal fan corresponding to the right auxiliary air duct, or several of the centrifugal fans corresponding to the upper, lower, left or right auxiliary air ducts can be turned on at the same time, that is, the position of the air guide and the number of air guide parts can be selected according to actual needs. It is beneficial for the user to obtain a more accurate air supply effect.

The above is only a preferred embodiment of the present invention, and does not therefore limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect use All other relevant technical fields are included in the patent protection scope of the present invention.

Claims (13)

1. a wall-mounted spherical indoor set, it is characterised in that including:

Housing, has main air inlet, main air outlet and connects described main air inlet and the main air duct of main air outlet, and described master goes out The rectangular setting in air port；Described housing includes face-piece, and described face-piece is in imitative hemispherical setting；

Conducting element, corresponding described main air outlet is arranged in described main air duct, and described conducting element has secondary air inlet, secondary air outlet And connecting described secondary air inlet and the secondary air channel of secondary air outlet, described secondary air inlet connects with described main air duct；

Air flow drive device, is used for driving air-flow to enter described secondary air channel from described secondary air inlet.

Wall-mounted spherical indoor set the most as claimed in claim 1, it is characterised in that described conducting element includes wind suction part and water conservancy diversion Portion, described wind suction part has air draught chamber, and described secondary air inlet is opened on described wind suction part and connects with described air draught chamber；

Described diversion division has diversion cavity, and described secondary air outlet is opened on described diversion division and connects with described diversion cavity, institute State diversion cavity to connect with described air draught chamber to form described secondary air channel.

Wall-mounted spherical indoor set the most as claimed in claim 2, it is characterised in that described wind suction part is arranged ringwise, described Secondary air inlet is arranged ringwise along described wind suction part, the shape in the surrounded region of described wind suction part and the shape of described main air inlet Corresponding.

Wall-mounted spherical indoor set the most as claimed in claim 3, it is characterised in that described wind suction part is towards the portion of described face-piece Divide to protrude towards described face-piece and extend.

Wall-mounted spherical indoor set the most as claimed in claim 4, it is characterised in that described wind suction part is towards described face-piece Face, fixing towards the wall laminating of described conducting element with described face-piece.

Wall-mounted spherical indoor set the most as claimed in claim 2, it is characterised in that described wind suction part becomes with described face-piece one Type is arranged.

Wall-mounted spherical indoor set the most as claimed in claim 2, it is characterised in that described diversion division is away from described wind suction part One end extends in described main air duct, and described secondary air outlet connects with described main air duct.

Wall-mounted spherical indoor set the most as claimed in claim 7, it is characterised in that described air flow drive device and described water conservancy diversion Portion is away from the fixing connection in one end of described wind suction part, and the air-out direction of described air flow drive device is towards described main air outlet.

Wall-mounted spherical indoor set the most as claimed in claim 2, it is characterised in that described diversion division is away from described wind suction part One end extends to the hull outside of wall-mounted spherical indoor set.

10. the wall-mounted spherical indoor set as described in any one in claim 2 to 9, it is characterised in that described diversion division Quantity is multiple, and described diversion division is arranged on described wind suction part uniformly；Described air flow drive device includes multiple centrifugal Blower fan, centrifugal blower is separately positioned on described diversion division one end away from described wind suction part.

11. wall-mounted spherical indoor sets as claimed in claim 10, it is characterised in that described air draught intracavity is provided with some Flow blocking sheet, so that described air draught chamber is separated to form some sub-chambeies, the diversion cavity of described diversion division chamber sub-with described in connect with Form the secondary air channel of son.

The control method of 12. 1 kinds of wall-mounted spherical indoor sets, it is characterised in that in wall-mounted spherical chamber facility have main air duct and The secondary air channel connected with described main air duct, corresponding secondary air channel is provided with centrifugal blower, the control of described wall-mounted spherical indoor set Method comprises the following steps:

Judge whether currently received instruction is wind-guiding instruction；

If so, centrifugal blower is opened, so that the connectivity part in described main air duct and described secondary air channel forms negative pressure.

The control method of 13. wall-mounted spherical indoor sets as claimed in claim 12, it is characterised in that described secondary air channel includes Upper secondary air channel, lower secondary air channel, left secondary air channel and right secondary air channel, each secondary air channel is all correspondingly arranged on a centrifugal blower；

The step of described unlatching centrifugal blower has and includes:

Open or many in the centrifugal blower corresponding with described secondary air channel, lower secondary air channel, left secondary air channel and right secondary air channel Individual.