CN112682849A - Indoor unit of air conditioner - Google Patents

Abstract

The invention discloses an air-conditioning indoor unit, comprising: a housing having an air outlet; the air outlet frame is rotatably arranged at the air outlet; the switch door is movably arranged on the shell to open or close the air outlet, and the air outlet frame is positioned on the inner side of the switch door when the switch door closes the air outlet; the drive box subassembly, the drive box subassembly includes drive box, first drive assembly and second drive assembly, first drive assembly with the second drive assembly is located the drive box, first drive assembly is used for the drive the switch door removes, the second drive assembly is used for the drive it rotates to go out the fan frame. According to the air conditioner indoor unit, the first driving assembly and the second driving assembly are arranged on the driving box, so that the space occupation of the first driving assembly and the second driving assembly is reduced, and the assembly efficiency is high.

Description

Indoor unit of air conditioner

Technical Field

The invention relates to the field of air conditioning, in particular to an air conditioner indoor unit.

Background

With the development of the indoor unit of the air conditioner, the requirement of users on the volume of the indoor unit of the air conditioner is higher and higher, and the miniaturization of the indoor unit of the air conditioner becomes a development trend. However, in the related art air conditioning indoor unit, the driving device for opening and closing the door and the driving device for the air outlet frame occupy a large space and have low assembly efficiency.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the air conditioner indoor unit, the first driving assembly and the second driving assembly are arranged on the driving box, so that the space occupation of the first driving assembly and the second driving assembly is reduced, and the assembling efficiency is high.

An air conditioning indoor unit according to an embodiment of the present invention includes: a housing having an air outlet; the air outlet frame is rotatably arranged at the air outlet; the switch door is movably arranged on the shell to open or close the air outlet, and the air outlet frame is positioned on the inner side of the switch door when the switch door closes the air outlet; the drive box subassembly, the drive box subassembly includes drive box, first drive assembly and second drive assembly, first drive assembly with the second drive assembly is located the drive box, first drive assembly is used for the drive the switch door removes, the second drive assembly is used for the drive it rotates to go out the fan frame.

According to the air conditioner indoor unit provided by the embodiment of the invention, the first driving component and the second driving component are arranged on the driving box, so that the first driving component and the second driving component are integrated with the driving box component, the overall space occupation of the first driving component and the second driving component is favorably reduced, meanwhile, the first driving component and the second driving component are prevented from being respectively installed, and the assembly efficiency is high.

In some embodiments of the present invention, an accommodating space is formed in the driving box, and an avoiding hole communicated with the accommodating space is formed in a circumferential wall of the driving box, and the avoiding hole extends along a circumferential direction of the driving box; the first drive assembly includes: first driving motor, first external gear and first transmission piece, first external gear with first driving motor link to each other in order by first driving motor drive rotates, first external gear with first transmission piece is located in the accommodation space, a side surface of first transmission piece is equipped with a plurality of spaced apart first tooth portion, first transmission piece is through a plurality of first tooth portion with first external gear meshing cooperation, deviating from of first transmission piece first tooth portion be equipped with connecting portion on the surface, connecting portion pass dodge the hole with the switch door links to each other, it is in to dodge the hole the removal in-process of switch door dodges connecting portion.

In some embodiments of the present invention, the first driving motor is mounted on an outer surface of the driving box, the driving box is provided with a first mounting hole, and a first motor shaft of the first driving motor passes through the first mounting hole to be connected to the first outer gear.

In some embodiments of the invention, the connecting portion is detachably connected to the opening and closing door.

In some embodiments of the present invention, a plurality of spaced-apart locking grooves are formed on a surface of the connecting portion facing away from the first transmission member, a plurality of spaced-apart locking portions are formed on the switch door, and the plurality of locking grooves and the plurality of locking portions are in one-to-one corresponding fit.

In some embodiments of the present invention, the first transmission member is formed in an annular shape, and an inner circumferential wall of the first transmission member is provided with a plurality of spaced first teeth portions.

In some embodiments of the present invention, the opening and closing door is formed in an arc shape, the first transmission member is formed in a circular ring shape, and the opening and closing door is coaxially disposed with the first transmission member.

In some embodiments of the present invention, the driving box assembly is located at one side of the length direction of the air outlet frame, and a through hole is provided on a side wall of the driving box facing the air outlet frame; the second drive assembly includes: second driving motor, second external gear and third external gear, first transmission piece encircles the second external gear with the outside of third external gear, second driving motor with the second external gear links to each other in order to drive the second external gear rotates, the third external gear includes a plurality of second tooth portions and connecting axle, a plurality of second tooth portions are established and are followed on the periphery wall of connecting axle the circumference of connecting axle is spaced apart, the third external gear passes through second tooth portion with the meshing cooperation of second external gear, the connecting axle passes the through-hole it links to each other to go out the fan frame.

In some embodiments of the present invention, the second driving motor is installed on a side surface of the driving box away from the air outlet frame, a second installation hole is formed on the driving box, and a second motor shaft of the second driving motor passes through the second installation hole to be matched with the second external gear.

In some embodiments of the present invention, the air conditioner further comprises a louver assembly, wherein the louver assembly is located in the air outlet channel of the air outlet frame; the louver component comprises a connecting rod and a plurality of louvers, the connecting rod extends along the extending direction of the rotation center line of the air outlet frame, the louvers are arranged at intervals along the extending direction of the rotation center line of the air outlet frame, two ends of each louver are rotatably connected with the opposite inner wall of the air outlet channel, and each louver is rotatably connected with the connecting rod.

In some embodiments of the present invention, the apparatus further comprises a third driving assembly, the third driving assembly is disposed on the driving box, and the third driving assembly is connected to the connecting rod to drive the connecting rod to move.

In some embodiments of the invention, a mounting part is arranged on the surface of one side of the driving box, which is far away from the air outlet frame, a containing cavity is formed in the mounting part, a communicating hole for communicating the containing cavity with the containing space is formed in the driving box, a shaft hole which penetrates through the connecting shaft along the axial direction of the connecting shaft is formed in the connecting shaft, the communicating hole is opposite to the shaft hole, and a through hole is formed in the position of the air outlet frame, which is opposite to the shaft hole; the third drive assembly includes: a third driving motor, a fourth external gear and a second transmission piece, wherein one end of the fourth external gear and one end of the second transmission piece are arranged in the containing cavity, the third driving motor is connected with the fourth external gear to drive the fourth external gear to rotate, the second transmission piece extends along the extension direction of the rotation center line of the air outlet frame, a plurality of third tooth parts are arranged on the peripheral wall of the part of the second transmission piece, which is positioned in the containing cavity, the third tooth parts are arranged at intervals along the extending direction of the rotation center line of the air outlet frame, the second transmission piece is meshed and matched with the fourth external gear through the third tooth part, the other end of the second transmission piece penetrates through the communication hole to extend into the accommodating space and sequentially penetrates through the shaft hole and the through hole to be connected with the connecting rod, wherein a portion of the second transmission member located within the shaft hole is spaced apart from an inner circumferential wall of the shaft hole.

In some embodiments of the present invention, the communication hole, the shaft hole, the through hole, and the second transmission member are coaxially disposed.

In some embodiments of the present invention, when the air outlet frame rotates, the connecting rod may rotate relative to the second transmission member.

In some embodiments of the invention, the connecting rod is fixedly connected to the second transmission member, and the third tooth portion extends in a circular ring shape in a circumferential direction of the second transmission member.

In some embodiments of the invention, an annular flange is arranged at one end of the shaft hole, which is adjacent to the air outlet frame, an annular limiting rib is arranged on the second transmission member, the limiting rib is located between the third tooth portions and the flange, and the annular limiting rib abuts against the flange at the first limit position.

In some embodiments of the present invention, the third driving motor is installed on a side surface of the driving box away from the air outlet frame, a third installation hole is formed on the installation part, and a third motor shaft of the third driving motor passes through the third installation hole to be matched with the fourth external gear.

In some embodiments of the present invention, a guide groove for placing the first transmission member is disposed in the accommodating space, and the guide groove guides the movement of the first transmission member.

In some embodiments of the invention, the drive cartridge comprises: the box body is open at one side, and the avoidance holes are formed in the peripheral wall of the box body; the lid, the lid is established the open side of box body and with box body detachably links to each other.

In some embodiments of the present invention, there are two driving box assemblies, and the two driving box assemblies are respectively located at two sides of the length direction of the air outlet frame.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic view of an assembly of the outlet frame, the opening and closing door, the louver assembly and the driving box according to an embodiment of the present invention;

FIG. 3 is a side schematic view of FIG. 2;

FIG. 4 is a bottom view of FIG. 2;

FIG. 5 is a top view of FIG. 2;

FIG. 6 is a schematic cross-sectional view taken at A-A in FIG. 2;

FIG. 7 is a schematic structural view of a drive cassette assembly according to an embodiment of the invention;

FIG. 8 is a partially exploded schematic view of a drive cassette assembly according to an embodiment of the invention;

FIG. 9 is a cross-sectional schematic view of a drive cartridge assembly according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a cartridge according to an embodiment of the present invention;

fig. 11 is a partial structural schematic view of a drive cartridge assembly according to an embodiment of the invention, in which a cover is removed;

FIG. 12 is a schematic bottom view of FIG. 11;

FIG. 13 is a side schematic view of FIG. 11;

FIG. 14 is a schematic view of a switch door and first drive assembly in accordance with an embodiment of the present invention;

FIG. 15 is an enlarged view at B in FIG. 14;

FIG. 16 is a schematic view of the air outlet frame and the second driving assembly according to the embodiment of the present invention;

FIG. 17 is an enlarged view at C in FIG. 16;

FIG. 18 is a schematic view of a shutter assembly and a third drive assembly in accordance with an embodiment of the present invention;

FIG. 19 is an enlarged view at D of FIG. 18;

fig. 20 is a schematic structural diagram of a switching door according to an embodiment of the present invention.

Reference numerals:

an indoor air-conditioning unit 100;

a housing 1; an air outlet 11;

an air outlet frame 2; an air deflector 21; a via hole 22;

opening and closing the door 3; a clip portion 31;

a shutter assembly 4; a link 41; the louvers 42;

a drive cartridge assembly 5;

a drive cassette 51; the accommodating space 51 a;

a cartridge body 511; a relief hole 5111; a first mounting hole 5112; a second mounting hole 5113;

a mounting portion 5114; the housing cavity 51141; a communication hole 51142; the guide groove 5115;

a third mounting hole 5116;

a cover 512; a through hole 5121;

a first drive assembly 52; a first drive motor 521; a first external gear 522; a first transmission member 523; a first tooth portion 5231; a connecting portion 524; a card slot 5241;

a second drive assembly 53; a second drive motor 531; a second external gear 532; a third external gear 533; a second tooth portion 5331; a connecting shaft 5332; shaft hole 53321; a flange 53322;

a third drive assembly 54; a third driving motor 541; a fourth external gear 542; a second transmitting member 543; third tooth portion 5431; an annular protrusion 5432; spacing muscle 5433.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

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

An air conditioning indoor unit 100 according to an embodiment of the present invention, the air conditioning indoor unit 100 being used to adjust the temperature of the indoor unit environment, is described below with reference to the accompanying drawings. For example, the indoor air conditioner 100 may be a cabinet type air conditioner.

Referring to fig. 1, an air conditioning indoor unit 100 according to an embodiment of the present invention may include a casing 1, an air outlet frame 2, a switch door 3, and a driving box assembly 5, where the casing 1 has an air outlet 11, and as shown in fig. 2 and 3, the air outlet frame 2 is rotatably disposed at the air outlet 11, for example, a plurality of air deflectors 21 (see fig. 16) disposed at intervals are further disposed on the air outlet frame 2, and the air outlet frame 2 is rotatable relative to the air outlet 11 to change an air blowing direction of the air conditioning indoor unit 100.

Referring to fig. 1, the opening and closing door 3 is movably disposed on the housing 1 to open or close the outlet 11, and the outlet frame 2 is located inside the opening and closing door 3 when the opening and closing door 3 closes the outlet 11 (see fig. 6).

Referring to fig. 4 and 5, the driving box assembly 5 includes a driving box 51, a first driving assembly 52 and a second driving assembly 53, the first driving assembly 52 and the second driving assembly 53 are disposed on the driving box 51, the first driving assembly 52 is used for driving the opening and closing door 3 to move, and the second driving assembly 53 is used for driving the air outlet frame 2 to rotate.

The inventor found in practical studies that the first driving assembly and the second driving assembly in the related art are separately arranged, and therefore occupy a large space, and because the first driving assembly and the second driving assembly need to be separately installed, the assembly efficiency is low, and according to the air conditioning indoor unit 100 of the embodiment of the present invention, by arranging the first driving assembly 52 and the second driving assembly 53 to the driving box 51, so that the first driving assembly 52 and the second driving assembly 53 are integrated into the driving box assembly 5, the space occupation of the first driving assembly 52 and the second driving assembly 53 as a whole is favorably reduced, and simultaneously, the installation of the first driving assembly 52 and the second driving assembly 53 separately is avoided, which is favorable for improving the assembly efficiency of the first driving assembly 52 and the second driving assembly 53.

In some embodiments of the present invention, as shown in fig. 9, an accommodating space 51a is formed in the drive box 51, and a relief hole 5111 communicating with the accommodating space 51a is formed in a peripheral wall of the drive box 51, and the relief hole 5111 extends in a circumferential direction of the drive box 51.

Further, as shown with reference to fig. 14 and 15, the first driving assembly 52 includes: the door opening and closing mechanism comprises a first driving motor 521, a first external gear 522 and a first transmission member 523, wherein the first external gear 522 is connected with the first driving motor 521 so as to be driven by the first driving motor 521 to rotate, the first external gear 522 and the first transmission member 523 are located in the accommodating space 51a, a plurality of first tooth portions 5231 are arranged on one side surface of the first transmission member 523, the first transmission member 523 is engaged with the first external gear 522 through the plurality of first tooth portions 5231, as shown in fig. 9, a connecting portion 524 is arranged on the surface of the first transmission member 523 facing away from the first tooth portions 5231, the connecting portion 524 passes through an avoidance hole 5111 and is connected with the door opening and closing body 3, and the avoidance hole 5111 avoids the connecting portion 524 during the movement of the door opening and closing body 3.

It can be understood that, under the driving of the first driving motor 521, the first external gear 522 drives the first transmission member 523 to move, so that the connection portion 524 drives the opening and closing door 3 to move. Therefore, the first driving assembly 52 has a compact structure and a small occupied space, and the first external gear 522 and the first transmission piece 523 are both located in the accommodating space 51a, which is beneficial to improving the reliability of the operation of the first driving assembly 52.

In some alternative embodiments of the present invention, as shown in fig. 11 and 12, the first driving motor 521 is mounted on an outer surface of the driving box 51, a first mounting hole 5112 (see fig. 10) is formed on the driving box 51, and a first motor shaft of the first driving motor 521 passes through the first mounting hole 5112 and is connected to the first external gear 522. Therefore, the first driving motor 521 is convenient to mount, the structure is simple, and the production cost is low. For example, as shown in fig. 14 and 15, the driving box assembly 5 is located at one side of the length direction of the air-out frame 2, and the first driving motor 521 is mounted on the surface of the driving box 51 facing away from the air-out frame 2.

Alternatively, as shown in fig. 14 and 15, the connecting portion 524 is detachably connected to the opening and closing door 3. Thus, the attachment and detachment between the connection portion 524 and the opening/closing door 3 is facilitated, which is advantageous in reducing the installation and maintenance costs of the opening/closing door 3 and the first driving assembly 52.

Furthermore, a plurality of spaced-apart clamping grooves 5241 (refer to fig. 7) are formed in a surface of the connecting portion 524 facing away from the first transmission member 523, a plurality of spaced-apart clamping portions 31 (refer to fig. 20) are formed in the switch door 3, and the plurality of clamping grooves 5241 are in one-to-one corresponding fit with the plurality of clamping portions 31. Therefore, the connection between the connecting part 524 and the switch door 3 is reliable, the reliability of the movement of the switch door 3 is guaranteed, and meanwhile, the structure is simple and the production cost is low.

In some embodiments of the present invention, referring to fig. 11, the first transmission member 523 is formed in an annular shape, and a plurality of spaced first tooth portions 5231 are provided on an inner circumferential wall of the first transmission member 523. The structure is simple, and the matching of the first transmission piece 523 and the first external gear 522 is reliable.

As shown in fig. 11, the opening/closing door 3 is formed in an arc shape (see fig. 6), the first transmission member 523 is formed in a circular ring shape, and the opening/closing door 3 is provided coaxially with the first transmission member 523. It can be understood that, by forming the first transmission member 523 into an annular shape and disposing the switching door 3 coaxially with the first transmission member 523, the moving track of the switching door 3 can be made to be annular, so that the moving track of the switching door 3 can be adapted to the arc-shaped casing 1, which is beneficial to reducing the volume of the indoor unit 100 of the air conditioner.

In some embodiments of the present invention, referring to fig. 7 and 8, the driving box assembly 5 is located at one side of the length direction of the air-out frame 2, and a through hole 5121 is provided on a side wall of the driving box 51 facing the air-out frame 2. For example, as shown in fig. 7 and 8, the drive box assembly 5 includes a box body 511 and a cover body 512, one side of the box body 511 is open, a relief hole 5111 is formed in a peripheral wall of the box body 511, the cover body 512 is disposed at the open side of the box body 511 and detachably connected to the box body 511, and a through hole 5121 is formed in the cover body 512, so that the drive box 51 includes the box body 511 and the cover body 512 which are detachably connected, thereby facilitating the installation of the first drive assembly 52 and the second drive assembly 53 and facilitating the improvement of the assembly efficiency of the drive box assembly 5.

Further, as shown in fig. 16 and 17, the second drive assembly 53 includes: referring to fig. 11, the second driving motor 531, the second external gear 532 and the third external gear 533, the first driving member 523 surrounds the second external gear 532 and the third external gear 533, the second driving motor 531 is connected to the second external gear 532 to drive the second external gear 532 to rotate, the third external gear 533 includes a plurality of second tooth portions 5331 and a connecting shaft 5332, the plurality of second tooth portions 5331 are disposed on an outer peripheral wall of the connecting shaft 5332 and spaced apart from each other along a circumferential direction of the connecting shaft 5332, the third external gear 533 is engaged with the second external gear 532 through the second tooth portions 5331, and the connecting shaft 5332 passes through the through hole 5121 to connect to the air outlet frame 2.

It can be understood that, under the driving of the second driving motor 531, the third external gear 533 is driven by the second external gear 532 to rotate, and the third external gear 533 drives the air-out frame 2 to rotate through the connecting shaft 5332 to change the air supply direction of the indoor unit 100 of the air conditioner. Therefore, the first transmission member 523 surrounds the outer sides of the second external gear 532 and the third external gear 533, so that the second drive assembly 53 and the first drive assembly 52 are more compact in structure and occupy less space, and the second external gear 532 and the third external gear 533 are located in the accommodating space 51a, which is beneficial to improving the reliability of the operation of the second drive assembly 53.

Optionally, the second driving motor 531 is installed on a surface of a side of the driving box 51 away from the air-out frame 2, a second installation hole 5113 is provided on the driving box 51, and a second motor shaft of the second driving motor 531 passes through the second installation hole 5113 to cooperate with the second external gear 532. Therefore, the second driving motor 531 is convenient to mount, the structure is simple, and the production cost is low. For example, as shown in fig. 10, the second driving motor 531 is connected to a surface of the case 511 facing away from the air-out frame 2, and the case 511 is provided with a second mounting hole 5113, wherein the second mounting hole 5113 penetrates the case 511 in a thickness direction of the case 511.

In some embodiments of the present invention, as shown in fig. 2 and 18, the indoor air conditioning unit 100 further includes a louver assembly 4, the louver assembly 4 is located in the air outlet channel of the air outlet frame 2, the louver assembly 4 includes a connecting rod 41 and a plurality of louvers 42, the connecting rod 41 extends along the extending direction of the rotation center line of the air outlet frame 2, the plurality of louvers 42 are spaced apart along the extending direction of the rotation center line of the air outlet frame 2, two ends of each louver 42 are rotatably connected to opposite inner walls of the air outlet channel, that is, two ends of each louver 42 are rotatably connected to the air outlet frame 2 and located in the air outlet channel of the air outlet frame 2, and each louver 42 is rotatably connected to the connecting rod 41. For example, as shown in fig. 16 and 18, the louver 42 can be rotated in the up-down direction, and the outlet frame 2 can be rotated in the left-right direction. Therefore, through the matching of the louver assembly 4 and the air outlet frame 2, the air conditioner indoor unit 100 can have multiple air supply modes, and the use experience of a user can be improved.

Further, as shown in fig. 18 and 19, the indoor unit 100 of the air conditioner further includes a third driving assembly 54, the third driving assembly 54 is disposed on the driving box 51, and the third driving assembly 54 is connected to the connecting rod 41 to drive the connecting rod 41 to move. Therefore, by arranging the first driving assembly 52, the second driving assembly 53, and the third driving assembly 54 to the driving box 51 (refer to fig. 12), the first driving assembly 52, the second driving assembly 53, and the third driving assembly 54 are integrated into the driving box assembly 5, which is beneficial to reducing the overall space occupation of the first driving assembly 52, the second driving assembly 53, and the third driving assembly 54, and simultaneously, avoiding installing the first driving assembly 52, the second driving assembly 53, and the third driving assembly 54 separately, which is beneficial to improving the assembly efficiency of the air conditioning indoor unit 100.

Specifically, as shown in fig. 9, a mounting portion 5114 is provided on a surface of the drive box 51 on a side away from the air-out frame 2, a receiving cavity 51141 is formed in the mounting portion 5114, a communication hole 51142 communicating the receiving cavity 51141 and the receiving space 51a is formed in the drive box 51, a shaft hole 53321 penetrating through the connecting shaft 5332 along an axial direction of the connecting shaft 5332 is formed in the connecting shaft 5332, the communication hole 51142 faces the shaft hole 53321, and a through hole 22 (see fig. 17) is provided at a position of the air-out frame 2 facing the shaft hole 53321.

Further, the third driving assembly 54 includes: a third driving motor 541, a fourth external gear 542 and a second transmission piece 543 (refer to fig. 11 and 12), one end of the fourth external gear 542 and one end of the second transmission piece 543 are disposed in the accommodating chamber 51141, as shown in fig. 19, the third driving motor 541 is connected to the fourth external gear 542 to drive the fourth external gear 542 to rotate, the second transmission piece 543 extends along the extending direction of the rotation center line of the air-out frame 2 (e.g. up and down direction as shown in fig. 1), a plurality of third teeth 5431 are disposed on the outer peripheral wall of the portion of the second transmission piece 543 located in the accommodating chamber 51141, the plurality of third teeth 5431 are spaced apart from each other along the extending direction of the rotation center line of the air-out frame 2, the second transmission piece 543 is engaged with the fourth external gear 542 through the third teeth 5431, the other end of the second transmission piece 543 penetrates through the communication hole 51142 to extend into the accommodating space 51a and sequentially penetrates through the shaft hole 53321 and the through hole 22 (refer to connect with the connecting rod, the portion of the second transmission piece 543 located in the shaft hole 53321 is spaced apart from the inner circumferential wall of the shaft hole 53321 (see fig. 9).

It can be understood that, by making the other end of the second transmission piece 543 penetrate through the communication hole 51142 and extend into the accommodating space 51a and sequentially penetrate through the shaft hole 53321 and the through hole 22 to be connected with the connecting rod 41, the space occupation of the third driving assembly 54 in the circumferential direction of the driving cartridge 51 is further reduced, which is beneficial to further reducing the space occupation of the driving cartridge assembly 5.

Alternatively, as shown in fig. 9 and 17, the communication hole 51142, the shaft hole 53321, the through hole 22 and the second transmission piece 543 are coaxially arranged. The inventor finds in practical research that in the related art, the rotation center of the air deflector on the air outlet frame is not coaxial with the rotation center of the louver assembly 4, so that interference is easily generated between the air deflector and the louver, and synchronous rotation of the air deflector and the louver assembly cannot be realized. According to the air-conditioning indoor unit 100 of the embodiment of the invention, the communication hole 51142, the shaft hole 53321, the through hole 22 and the second transmission piece 543 are coaxially arranged, so that the louver assembly 4 and the air outlet frame 2 synchronously rotate, which is beneficial to improving the air guiding effect of the air-conditioning indoor unit 100.

Alternatively, as shown in fig. 18 and 19, when the air-out frame 2 rotates, the connecting rod 41 can rotate relative to the second transmission piece 543. For example, the connecting rod 41 is provided with a pivot hole adapted to be engaged with the second driving member 543, an annular groove recessed outward is provided on an inner peripheral wall of the pivot hole, and an annular protrusion 5432 (see fig. 13) adapted to the engaging groove is provided on an outer peripheral wall of a portion of the second transmission shaft extending into the pivot hole. Therefore, when the air-out frame 2 rotates, the second driving component 543 does not rotate synchronously with the connecting rod 41, in other words, the second driving component 543 does not rotate relative to the third driving motor 541, which is beneficial to ensuring the reliable matching between the second driving component 543 and the fourth external gear 542, thereby ensuring the reliability of the operation of the third driving assembly 54.

In some alternative embodiments of the present invention, as shown in fig. 19, the connecting rod 41 is fixedly connected to the second transmission piece 543, and the third tooth portion 5431 extends in a circular ring shape in a circumferential direction of the second transmission piece 543. It can be understood that, when the air-out frame 2 rotates, the second driving piece 543 rotates together with the connecting rod 41, and through making the third tooth portion 5431 extend to a circular ring shape in the circumferential direction of the second driving piece 543, in the process of rotation of the second driving piece 543, the tooth portion 5431 and the fourth external gear 542 are always in a matching state, which is beneficial to ensuring reliable matching of the second driving piece 543 and the fourth external gear 542, and meanwhile, the structure is simple, and the reduction of the production cost is facilitated.

Specifically, as shown in fig. 9, an annular flange 53322 is disposed at one end of the shaft hole 53321 adjacent to the air-out frame 2, an annular limiting rib 5433 (see fig. 19) is disposed on the second transmission piece 543, the limiting rib 5433 is located between the third teeth 5431 and the flange 53322, and the annular limiting rib 5433 abuts against the flange 53322 at the first limit position. Therefore, the annular limiting rib 5433 abuts against the flange 53322 at the first limit position, so that the second transmission piece 543 is prevented from being disengaged from the drive box 51, and the reliability of the operation of the second transmission piece 543 is ensured.

In some examples, as shown in fig. 9, an end of the mounting portion 5114 opposite to the communication hole 51142 is closed, and the second transmission piece 543 abuts on the closed end of the mounting portion 5114 at the second limit position. This is advantageous in further improving the reliability of the operation of the second transmission member 543.

Further, as shown in fig. 10, the third driving motor 541 is installed on a surface of the driving box 51 on a side away from the air-out frame 2, a third installation hole 5116 is provided on the installation portion 5114, and a third motor shaft of the third driving motor 541 passes through the third installation hole 5116 to be engaged with the fourth external gear 542 (refer to fig. 19). Therefore, the third driving motor 541 is convenient to mount, simple in structure and low in production cost. For example, a mounting portion 5114 is formed on the case 511, and the third driving motor 541 is coupled to the case 511 by a fastener.

Alternatively, as shown in fig. 9, a guide groove 5115 for placing the first transmission member 523 is provided in the accommodating space 51a, and the guide groove 5115 guides the movement of the first transmission member 523. For example, the guide groove 5115 may be formed in an annular shape, and the guide groove 5115 is adapted to the shape of the first transmission member 523. Therefore, the first transmission member 523 can move along the extending direction of the guide groove 5115, which is beneficial to ensure that the opening and closing door 3 moves along the set track under the action of the first driving assembly 52.

In some embodiments of the present invention, referring to fig. 2 and 3, two drive box assemblies 5 are provided, and the two drive box assemblies 5 are respectively located at two sides of the length direction of the air outlet frame 2. Therefore, the reliability of the movement of the opening and closing door 3 and the reliability of the rotation of the air outlet frame 2 are further improved. For example, in some examples, two drive box assemblies 5 are respectively located at the upper and lower sides of the air-out frame 2, the drive box assembly 5 located below the air-out frame 2 includes a first drive assembly 52, a second drive assembly 53 and a third drive assembly 54 (refer to fig. 4), and the drive located above the air-out frame 2 only includes the first drive assembly 52 and the second drive assembly 53 (refer to fig. 5), so that the production cost is reduced on the basis of realizing that the first drive assembly 52 drives the switch door 3 to move, the second drive assembly 53 drives the air-out frame 2 to swing left and right, and the third drive assembly 54 drives the louvers 42 to swing up and down.

Other configurations and operations of the air conditioning indoor unit 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (20)

1. An indoor unit of an air conditioner, comprising:

a housing having an air outlet;

the air outlet frame is rotatably arranged at the air outlet;

the switch door is movably arranged on the shell to open or close the air outlet, and the air outlet frame is positioned on the inner side of the switch door when the switch door closes the air outlet;

the drive box subassembly, the drive box subassembly includes drive box, first drive assembly and second drive assembly, first drive assembly with the second drive assembly is located the drive box, first drive assembly is used for the drive the switch door removes, the second drive assembly is used for the drive it rotates to go out the fan frame.

2. An indoor unit of an air conditioner according to claim 1, wherein an accommodating space is formed in the drive box, and an avoiding hole communicating with the accommodating space is formed in a circumferential wall of the drive box and extends in a circumferential direction of the drive box;

the first drive assembly includes: first driving motor, first external gear and first transmission piece, first external gear with first driving motor link to each other in order by first driving motor drive rotates, first external gear with first transmission piece is located in the accommodation space, a side surface of first transmission piece is equipped with a plurality of spaced apart first tooth portion, first transmission piece is through a plurality of first tooth portion with first external gear meshing cooperation, deviating from of first transmission piece first tooth portion be equipped with connecting portion on the surface, connecting portion pass dodge the hole with the switch door links to each other, it is in to dodge the hole the removal in-process of switch door dodges connecting portion.

3. An indoor unit of an air conditioner according to claim 2, wherein the first driving motor is installed on an outer surface of the driving box, a first installation hole is formed in the driving box, and a first motor shaft of the first driving motor passes through the first installation hole to be connected to the first outer gear.

4. An indoor unit of an air conditioner according to claim 2, wherein the connecting portion is detachably connected to the opening/closing door.

5. An indoor unit of an air conditioner as claimed in claim 4, wherein a plurality of spaced-apart engaging portions are provided on a surface of the connecting portion facing away from the first transmission member, and a plurality of spaced-apart engaging portions are provided on the door, the engaging portions engaging with the engaging portions in a one-to-one correspondence.

6. An indoor unit of an air conditioner according to claim 2, wherein the first transmission member is formed in an annular shape, and an inner peripheral wall of the first transmission member is provided with a plurality of the first tooth portions spaced apart.

7. An indoor unit of an air conditioner according to claim 6, wherein the opening and closing door is formed in an arc shape, the first transmission member is formed in a circular ring shape, and the opening and closing door is provided coaxially with the first transmission member.

8. The indoor unit of claim 6, wherein the driving box assembly is located at one side of the length direction of the air outlet frame, and a through hole is formed in a side wall of the driving box facing the air outlet frame;

the second drive assembly includes: second driving motor, second external gear and third external gear, first transmission piece encircles the second external gear with the outside of third external gear, second driving motor with the second external gear links to each other in order to drive the second external gear rotates, the third external gear includes a plurality of second tooth portions and connecting axle, a plurality of second tooth portions are established and are followed on the periphery wall of connecting axle the circumference of connecting axle is spaced apart, the third external gear passes through second tooth portion with the meshing cooperation of second external gear, the connecting axle passes the through-hole it links to each other to go out the fan frame.

9. An indoor unit of an air conditioner according to claim 8, wherein the second driving motor is installed on a surface of a side of the driving box facing away from the air outlet frame, a second installation hole is formed in the driving box, and a second motor shaft of the second driving motor passes through the second installation hole to be engaged with the second external gear.

10. The indoor unit of claim 8, further comprising a louver member disposed in the outlet channel of the outlet frame;

the louver component comprises a connecting rod and a plurality of louvers, the connecting rod extends along the extending direction of the rotation center line of the air outlet frame, the louvers are arranged at intervals along the extending direction of the rotation center line of the air outlet frame, two ends of each louver are rotatably connected with the opposite inner wall of the air outlet channel, and each louver is rotatably connected with the connecting rod.

11. An indoor unit of an air conditioner according to claim 10, further comprising a third driving unit provided in the driving box, the third driving unit being connected to the link to drive the link to move.

12. An indoor unit of an air conditioner according to claim 11, wherein a mounting portion is provided on a surface of the driving case on a side facing away from the air outlet frame, a receiving cavity is formed in the mounting portion, a communication hole communicating the receiving cavity with the receiving space is formed in the driving case, a shaft hole penetrating through the connecting shaft in an axial direction of the connecting shaft is formed in the connecting shaft, the communication hole is opposite to the shaft hole, and a through hole is provided at a position of the air outlet frame opposite to the shaft hole;

the third drive assembly includes: a third driving motor, a fourth external gear and a second transmission piece, wherein one end of the fourth external gear and one end of the second transmission piece are arranged in the containing cavity, the third driving motor is connected with the fourth external gear to drive the fourth external gear to rotate, the second transmission piece extends along the extension direction of the rotation center line of the air outlet frame, a plurality of third tooth parts are arranged on the peripheral wall of the part of the second transmission piece, which is positioned in the containing cavity, the third tooth parts are arranged at intervals along the extending direction of the rotation center line of the air outlet frame, the second transmission piece is meshed and matched with the fourth external gear through the third tooth part, the other end of the second transmission piece penetrates through the communication hole to extend into the accommodating space and sequentially penetrates through the shaft hole and the through hole to be connected with the connecting rod, wherein a portion of the second transmission member located within the shaft hole is spaced apart from an inner circumferential wall of the shaft hole.

13. An indoor unit of an air conditioner according to claim 12, wherein the communication hole, the shaft hole, the through hole and the second transmission member are coaxially provided.

14. An indoor unit of an air conditioner according to claim 12, wherein the link is rotatable relative to the second transmission member when the air outlet frame is rotated.

15. An indoor unit of an air conditioner according to claim 12, wherein the link is fixedly connected to the second transmission member, and the third tooth portion extends in a circular ring shape in a circumferential direction of the second transmission member.

16. An indoor unit of an air conditioner according to claim 12, wherein an annular flange is provided at an end of the shaft hole adjacent to the air outlet frame, an annular limiting rib is provided on the second transmission member, the limiting rib is located between the plurality of third teeth and the flange, and the annular limiting rib abuts against the flange at the first limit position.

17. An indoor unit of an air conditioner according to claim 12, wherein the third driving motor is installed on a surface of a side of the driving box facing away from the air outlet frame, a third installation hole is formed in the installation part, and a third motor shaft of the third driving motor passes through the third installation hole to be engaged with the fourth external gear.

18. An indoor unit of an air conditioner according to claim 2, wherein a guide groove for receiving the first transmission member is provided in the accommodation space, and the guide groove guides movement of the first transmission member.

19. An indoor unit of an air conditioner according to claim 2, wherein the driving cassette includes:

the box body is open at one side, and the avoidance holes are formed in the peripheral wall of the box body;

the lid, the lid is established the open side of box body and with box body detachably links to each other.

20. An indoor unit of an air conditioner according to any one of claims 1 to 19, wherein there are two drive box assemblies, and the two drive box assemblies are respectively located on both sides in a length direction of the air outlet frame.

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