CN116293930A - Indoor unit and air conditioner - Google Patents

Abstract

The invention discloses an indoor unit and an air conditioner, wherein the indoor unit comprises: shell and switch door subassembly, the shell has the air outlet, switch door subassembly includes: the switch door is movably arranged on the mounting plate so as to switch between a first position for opening the air outlet and a second position for closing the air outlet; wherein, switch door and mounting panel pass through transmission structure power and are connected, and are provided with the storage tank on the mounting panel, and transmission structure sets up in the storage tank, and the inboard of switch door has the installation department that extends towards the mounting panel, and the installation department stretches into the storage tank and links to each other with transmission structure's power take off spare. From this, through set up the storage tank on the mounting panel to make the installation department of switch door stretch into behind the storage tank and link to each other with the power take off spare that is located the storage tank, can reduce the thickness of switch door subassembly, reduce the arrangement degree of difficulty of switch door subassembly, and make switch door subassembly can satisfy the demand that the indoor set was frivolous to be set up.

Description

Indoor unit and air conditioner

Technical Field

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

Background

In the related art, an opening and closing door is arranged on an air outlet of an indoor unit, the opening and closing door is arranged on a shell of the indoor unit in an openable and closable manner through a transmission auxiliary piece, and the opening and closing of the air outlet are controlled by controlling the movement of the opening and closing door relative to the shell.

However, in the door opening and closing movement process, power is required to be transmitted through a transmission structure, the space occupation of the transmission structure is large, the space occupation of a door opening and closing assembly is large, the arrangement difficulty is high, and the light and thin design is difficult to realize.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide an indoor unit, which occupies less space and is less difficult to arrange.

The invention further provides an air conditioner adopting the indoor unit.

According to an embodiment of the first aspect of the present invention, an indoor unit includes: shell and switch door subassembly, the shell has the air outlet, switch door subassembly includes: the mounting plate is arranged on the shell, and the switch door is movably arranged on the mounting plate so as to switch between a first position for opening the air outlet and a second position for closing the air outlet; the switch door is in power connection with the mounting plate through a transmission structure, the mounting plate is provided with a containing groove, the transmission structure is arranged in the containing groove, the inner side of the switch door is provided with a mounting part extending towards the mounting plate, and the mounting part stretches into the containing groove and is connected with a power output part of the transmission structure.

According to the indoor unit provided by the embodiment of the invention, the accommodating groove is formed in the mounting plate, and the mounting part of the switch door is connected with the power output piece positioned in the accommodating groove after extending into the accommodating groove, so that the thickness of the switch door assembly can be reduced, the arrangement difficulty of the switch door assembly is reduced, and the switch door assembly can meet the requirements of light and thin arrangement of the indoor unit.

According to some embodiments of the invention, the transmission structure is configured as a screw-nut transmission structure, and a screw is disposed on the mounting plate, a nut plate is connected to the switch door, and an axis of the screw is parallel to a movement direction of the switch door.

Further, bearing seats are arranged at two ends of the screw rod, bearings are arranged in the bearing seats, the bearings are connected with the screw rod, and the bearing seats are provided with first mounting lugs which are connected with the mounting plate.

Further, a first limiting portion and a first mounting hole are formed in the first mounting lug, a first matching portion matched with the first limiting portion in a positioning mode and a first matching portion matched with the first mounting hole are formed in the mounting plate, and two first mounting holes in the two bearing seats are adjacent to the two first limiting portions.

According to some embodiments of the invention, the indoor unit further comprises: the power source is arranged in the accommodating groove, the power source is arranged in the fixing frame, and an output shaft of the power source penetrates through the fixing frame to be connected with the screw rod through the coupler.

Further, the coupling is located between the bearing and the power source.

According to some embodiments of the invention, the nutplate comprises: the plate body and set up the barrel on the plate body mid-line, the barrel with the lead screw meshing, the plate body with the switch door links to each other.

Further, a second limiting part and a second mounting hole are formed in the nut plate, a second matching part matched with the second limiting part and a second matching part matched with the second mounting hole are formed in the mounting part, and the number of the second mounting holes is multiple.

In some embodiments, the housing includes a front panel defining the air outlet, the front panel being coupled to the mounting plate.

According to some embodiments of the invention, the air outlet is further provided with an air outlet grille, and the mounting plate and the air outlet grille are sequentially arranged in the moving direction of the switch door or are integrally formed.

Further, the air outlet grille is spaced apart from the mounting plate in a direction perpendicular to the direction of movement.

In some embodiments, the indoor unit further comprises: and the switch door and the mounting plate are guided in a moving way through the guide structure.

Further, the guide structure is configured as a guide rail sliding block structure, the guide rail is connected with the switch door, and the sliding block is connected with the mounting plate.

An air conditioner according to an embodiment of a second aspect of the present invention includes: the indoor unit described in the above embodiment.

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 foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of an indoor unit according to an embodiment of the present invention (a switch door is in a closed position);

fig. 2 is another schematic view of an indoor unit according to an embodiment of the present invention (the opening/closing door is in an open position);

fig. 3 is a split schematic view of an indoor unit according to an embodiment of the present invention;

fig. 4 is a partially cut-away schematic illustration of an indoor unit according to an embodiment of the present invention;

FIG. 5 is a schematic illustration of a door opening and closing assembly in combination with a rail-slider structure, a transmission structure, according to an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating the assembly of the switch door and the structure of the guide rail slider, the transmission mechanism, according to an embodiment of the present invention;

FIG. 7 is another schematic illustration of the engagement of the door opening and closing assembly with the track slider structure, the transmission structure, in accordance with an embodiment of the present invention;

FIG. 8 is a schematic illustration of a transmission structure according to an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of a transmission structure according to an embodiment of the invention;

FIG. 10 is a schematic illustration of a power take-off according to an embodiment of the invention;

FIG. 11 is a schematic view of a bearing housing according to an embodiment of the present invention;

FIG. 12 is a schematic illustration of the cooperation of a drive structure with a mounting plate in accordance with an embodiment of the present invention;

FIG. 13 is an enlarged partial schematic view of the area A encircled in FIG. 12;

FIG. 14 is an enlarged partial schematic view of region B of FIG. 12;

FIG. 15 is a schematic view of a mounting plate according to an embodiment of the invention;

fig. 16 is a schematic view of a switch door according to an embodiment of the present invention;

FIG. 17 is an enlarged partial schematic view according to region C of FIG. 16;

FIG. 18 is a schematic diagram showing the cooperation of the switch door and the transmission structure according to the embodiment of the invention;

FIG. 19 is a partially enlarged schematic view of region D of FIG. 18;

FIG. 20 is a schematic diagram showing the cooperation of a switch door and a rail slider structure according to an embodiment of the present invention;

FIG. 21 is a schematic view of an angle of a rail slider structure according to an embodiment of the present invention;

FIG. 22 is a schematic view of another angle of a rail slider structure according to an embodiment of the present invention;

FIG. 23 is a schematic view of an angle of a rail according to an embodiment of the present invention;

FIG. 24 is a schematic view of another angle of a rail according to an embodiment of the present invention;

FIG. 25 is a schematic view of an angle of a slider according to an embodiment of the present invention;

FIG. 26 is a schematic view of another angle of a slider according to an embodiment of the present invention;

FIG. 27 is an enlarged partial schematic view of the area E encircled in FIG. 20;

FIG. 28 is a schematic diagram of the mating of a mounting plate with a rail slider structure according to an embodiment of the present invention;

fig. 29 is a schematic diagram illustrating the cooperation between the first positioning portion and the first positioning hole according to an embodiment of the invention.

Reference numerals:

the indoor unit 100,

the housing 10, the front panel 11, the air outlet 111, the back panel 12, the bottom panel 13,

the door opening and closing assembly 20, the mounting plate 21, the receiving groove 211, the first fitting portion 212, the first fitting portion 213, the fixing frame 214, the second positioning hole 215, the second connection hole 216, the opening and closing door 22, the first positioning portion 221, the first cylinder 2211, the second cylinder 2212, the first connection portion 222, the mounting portion 223, the second fitting portion 224, the second fitting portion 225, the power source 23,

the guide rail slider structure 30, the guide rail 31, the body portion 311, the slide groove 312, the first flanging plate 313, the first positioning hole 3131, the second flanging plate 314, the support column 315, the slider 32, the guide post 321, the first plate portion 322, the second plate portion 323, the second positioning portion 324, the second connecting portion 325,

the air-out grille 40,

the transmission structure 50, the power output member 51, the plate body 511, the cylinder 512, the second mounting holes 514 of the second stopper portions 513, 221, the power input member 52, the bearing housing 53, the first mounting lugs 531, the first stopper portions 532, the first mounting holes 533, the coupling 54, the bearing 55, the spline 56,

the air duct member 60.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

An indoor unit 100 and an air conditioner according to an embodiment of the present invention are described below with reference to fig. 1 to 29.

An indoor unit 100 according to an embodiment of the first aspect of the present invention includes: the housing 10 and the door opening and closing assembly 20, the housing 10 has an air outlet 111, and the door opening and closing assembly 20 includes: a mounting plate 21 and a switch door 22, the mounting plate 21 is disposed on the casing 10 (for example, on the air outlet 111 or below the inner side of the air outlet 111), and the switch door 22 is movably disposed on the mounting plate 21 to switch between an open position for opening the air outlet 111 and a closed position for closing the air outlet 111.

Referring to fig. 1, 2 and 3, the front side and the left and right sides of the casing 10 may be provided with an air outlet 111, the casing 10 may be provided therein with an air duct member 60, a humidifying assembly, a heat exchanger, etc., the air duct member 60 may have a plurality of air duct outlets, the air duct outlets are disposed corresponding to the air outlets 111, and the air outlets 111 are located downstream of the air duct outlets, so that air processed (e.g., heated, cooled, humidified) in the indoor unit 100 may be discharged into the indoor space through the air outlets 111, and the switch door 22 may be switched between a closed position shown in fig. 1 and an open position shown in fig. 2, so that the switch door 22 may be opened or closed, and may be stopped at any transition position between the open position and the closed position, so as to achieve adjustment of the air output and the air speed.

As shown in fig. 4 and 6, the switch door 22 is in power connection with the mounting plate 21 through the transmission structure 50, and the mounting plate 21 is provided with a containing groove 211, the transmission structure 50 is arranged in the containing groove 211, the inner side of the switch door 22 is provided with a mounting part 223 extending towards the mounting plate 21, and the mounting part 223 extends into the containing groove 211 and is connected with the power output piece 51 of the transmission structure 50.

It can be understood that the switch door 22 is in power connection with the mounting plate 21 through the transmission structure 50, the transmission structure 50 transmits power and drives the switch door 22 to move relative to the mounting plate 21, at least part of the transmission structure 50 is located between the switch door 22 and the mounting plate 21, so that the size of the switch door assembly 20 in the front-rear direction is larger, and the space occupation is larger.

According to the indoor unit 100 of the embodiment of the invention, the accommodating groove 211 is formed on the mounting plate 21, and the mounting portion 223 of the switch door 22 extends into the accommodating groove 211 and is connected with the power output member 51 positioned in the accommodating groove 211, so that the thickness of the switch door assembly 20 can be reduced, the difficulty in arranging the switch door assembly 20 can be reduced, and the requirement of light and thin arrangement of the indoor unit 100 can be met by the switch door assembly 20.

As shown in fig. 7, according to some embodiments of the present invention, the transmission structure 50 is configured as a screw-nut transmission structure, and a screw (power input member 51) is provided to the mounting plate 21, the nut plate is connected to the opening and closing door 22, and an axis of the screw is parallel to a moving direction of the opening and closing door 22, preferably such that the axis coincides with a center line of the opening and closing door 22.

It should be noted that, the transmission structure 50 in the embodiment of the present invention is a screw-nut transmission structure, where a screw is meshed with a nut plate, and the nut plate is used to drive the switch door 22 to lift, and the screw-nut transmission structure has high precision and good rigidity, and is disposed on the center line of the switch door 22, so that high precision transmission can be implemented, and working noise in the transmission process is smaller, and axial force of the screw-nut transmission is larger, so that the drive is more stable, and the switch door 22 with larger weight can be driven, and meanwhile, the drive stability of the switch door 22 can be improved by cooperating with the guide structure.

Of course, the arrangement position of the screw in the embodiment of the present invention is not particularly limited, and may be offset from the center line of the switch door 22 based on the arrangement requirement of the switch door 22.

More importantly, the screw nut transmission structure can realize self-locking, so that the switch door 22 can hover at any position, and the safety of the switch door assembly 20 is higher.

As shown in fig. 8 and 9, further, bearing seats 53 are disposed at two ends of the screw, bearings 55 are disposed in the bearing seats 53, the bearings 55 are connected with the screw, and the bearing seats 53 are provided with first mounting lugs 531, and the first mounting lugs 531 are connected with the mounting plate 21.

Thus, the bearings 55 are disposed at both ends of the screw, and the bearing seats 53 are disposed on the mounting plate 21 through the first mounting lugs 531, so that the rotation resistance of the screw can be reduced, and the stability and reliability of the screw in the accommodating groove 211 can be improved.

It should be noted that, the accommodating groove 211 may be a through groove, two ends of the through groove are provided with concave arc plates, the arc plates are attached to the bearing seat 53, and the first mounting lugs 531 of the bearing seat 53 are directly fixed on the flat plate 511 at two ends of the arc plates.

As further shown in fig. 11, 12 and 13, the first mounting ear 531 is provided with a first stopper 532 and a first mounting hole 533, the mounting plate 21 is provided with a first fitting 212 for positioning fit with the first stopper 532 and a first fitting 213 for fitting with the first mounting hole 533, and the two first mounting holes 533 of the two bearing seats 53 are disposed adjacent to each other with respect to the two first stoppers 532.

Specifically, the first limiting portion 532 is positionally matched with the first matching portion 212, for example: the first limiting portion 532 is formed as a positioning boss, the first fitting portion 212 is formed as a positioning hole to be fitted therewith, and the first mounting hole 533 is connected to be fitted with the first fitting portion 213, for example: the first fitting portion 213 is formed as a screw hole coaxially provided with the first mounting hole 533, or a mounting stud, and a fastener is passed through the first mounting hole 533 and connected to the first fitting portion 213 to achieve mounting positioning of the bearing housing 53 through the first stopper 532 and stable fitting through the first mounting hole 533 to improve fixing stability and reliability of the screw on the mounting plate 21.

Further, the two first mounting holes 533 of the two bearing seats 53 are arranged adjacent to each other with respect to the two first stopper portions 532, and the two first mounting holes 533 are closer to each other, so that the screw fixing effect is better.

As shown in fig. 14 and 15, according to some embodiments of the present invention, the indoor unit 100 further includes: the power source 23 is provided with a fixing frame 214 in the accommodating groove 211, the power source 23 is arranged on the fixing frame 214, and an output shaft of the power source 23 penetrates through the fixing frame 214 to be connected with a screw rod through a coupler 54 in a power mode.

Specifically, the fixing frame 214 includes a U-shaped portion disposed in the accommodating groove 211 of the mounting plate 21 and a plate body 511 disposed on the U-shaped portion and extending in the front-rear direction, the plate body 511 is provided with a mounting stud, the power source 23 is configured as a driving motor, the motor housing 10 is fixed on the plate body 511, the plate body 511 is provided with a shaft hole, a motor shaft of the driving motor penetrates through the shaft hole and is connected to a first end of the coupling 54, a second end of the coupling 54 is connected to a screw rod, so as to realize power connection between the power source 23 and the screw rod, the power source 23 drives the screw rod to rotate, and the screw rod drives a nut plate (the power output member 51) engaged with the screw rod to linearly lift.

Therefore, the fixing stability of the power source 23 can be improved by arranging the fixing frame 214, and the stable power connection of the power source 23 and the screw rod can be realized by arranging the coupler 54, so that overload of the power source 23 can be avoided, the use safety of the door opening and closing assembly 20 can be improved, and the service life of the door opening and closing assembly 20 can be effectively prolonged.

It should be noted that, referring to fig. 14, the coupling 54 is located between the bearing 55 and the power source 23, the end of the screw is provided with spline grooves, and the spline 56 is provided between the coupling 54 and the screw, so that stable power transmission between the screw and the coupling 54 is realized through key fit, and stability and reliability of power transmission are improved.

As shown in fig. 10, 16, 17 and 18, according to some embodiments of the present invention, a nutplate includes: plate 511 and set up the barrel 512 on the mid-line of plate 511, barrel 512 and lead screw meshing, plate 511 links to each other with switch door 22.

Therefore, the inner thread is arranged in the cylinder 512 so that the cylinder 512 is meshed with the screw, the inner thread can be configured into trapezoidal teeth to realize self-locking of the screw nut transmission structure, the plate 511 is positioned on the periphery of the cylinder 512 and is connected with the switch door 22 through the plate 511, and the connection stability and reliability between the switch door 22 and the nut plate can be improved.

Further, as shown in fig. 19, the nut plate is provided with a second limiting portion 513 and a second mounting hole 514, the mounting portion 223 is provided with a second fitting portion 224 that fits the second limiting portion 513 and a second fitting portion 225 that fits the second mounting hole 514, and the second mounting holes 514 are plural (for example, two ends of each second limiting portion 513 are provided with the second mounting holes 514).

Specifically, the second engaging portion 224 is formed as an oblong protrusion protruding toward the mounting plate 21 on the nut plate, the corresponding second limiting portion 513 is formed as an oblong hole to realize positioning engagement with the second engaging portion 224 and anti-rotation limitation of the nut plate through the second limiting portion 513, the second fitting portion 225 on the mounting portion 223 is formed as a threaded hole, and the nut plate can be reliably and stably fixed on the opening and closing door 22 by screwing a fastener penetrating through the second mounting hole 514 with the second fitting portion 225.

It will be appreciated that, in order to improve the stability and reliability of the movement of the switch door 22 relative to the mounting plate 21, a guiding structure is generally provided, so that the switch door 22 and the mounting plate 21 are stably matched through the guiding structure, and in the guiding process of the guiding structure, although the friction force is far smaller than the friction force of the direct contact of the switch door 22 and the mounting plate 21, the friction force is also certain, so that the movement noise is easily generated in the movement process of the switch door 22, and the weight of the guiding structure is large, a matching structure is required to be arranged to be mounted on the mounting plate, a power source 23 with a larger driving force is required to be arranged for driving, and the cost is high.

Based on this, as shown in fig. 4 and 5, the present invention makes the guide structure configured as a guide rail slider structure 30, and the opening and closing door 22 is movably provided to the mounting plate 21 by the guide rail slider structure 30 to switch between an open position to open the air outlet 111 and a closed position to close the air outlet 111, a plurality of guide posts 321 are provided on the slider 32 of the guide rail slider structure 30, and the guide posts 321 are slidably engaged with the guide rail 31 (see fig. 22, 26 and 27).

Specifically, the guide rail 31 may be provided on the opening/closing door 22, and the mounting plate 21 is provided corresponding to the slider 32; or the sliding block 32 is arranged on the switch door 22 and corresponds to the guide rail 31 and is arranged on the mounting plate 21, and the guide post 321 is in sliding fit with the guide rail 31 instead of being in sliding direct contact with the guide rail 31, so that the sliding block 32 is in sliding fit with the guide rail 31 through the guide post 321 in the switching process of the opening position and the closing position of the switch door 22, the contact area between the sliding block 32 and the guide rail 31 is reduced, the friction force in the moving process of the switch door 22 relative to the mounting plate 21 is further reduced, abnormal sound is improved, the service life of the switch door assembly 20 is prolonged, a smaller-specification power source 23 can be selected, and the cost of the indoor unit 100 can be effectively reduced.

It should be noted that the guide post 321 may be configured to be fixed to the slider 32 to reduce the driving force required for the movement of the opening and closing door 22 by reducing the frictional contact area, to improve abnormal noise, and the guide post 321 may be configured to be rotatably provided to the slider 32, and to reduce the frictional force of rolling friction while reducing the contact area, with a better effect than the embodiment fixed to the slider 32.

According to the indoor unit 100 of the embodiment of the invention, the guide rail 31 is in sliding fit with the guide post 321 of the sliding block 32, so that the friction force and friction loss in the opening and closing process of the opening and closing door 22 can be reduced, the service life of the opening and closing door assembly 20 can be prolonged, the service life of the indoor unit 100 can be prolonged, abnormal working noise can be reduced, driving force required in the moving process of the opening and closing door 22 relative to the mounting plate 21 can be reduced, and correspondingly, a power source 23 with smaller power can be selected, so that the cost of the indoor unit 100 can be reduced.

It should be noted that, the movement direction of the switch door 22 is defined as a first direction, the width direction of the switch door 22 is defined as a second direction perpendicular to the movement direction, the switch door 22 and the mounting plate 21 are disposed opposite to each other in a third direction, and the third direction is perpendicular to the first direction and different from the second direction, such as: the switch door 22 moves in the up-down direction, the width direction (second direction) corresponds to the left-right direction, and the switch door 22 faces the mounting plate 21 in the front-back direction (third direction), and at least part of the rail slider structure 30 and the transmission structure 50 may be located between the switch door 22 and the mounting plate 21, and the inside-outside direction is a relative concept, the direction toward the inner space of the housing 10 is the inside, and the direction away from the inner space of the housing 10 is the outside.

As shown in fig. 23 and 24, according to some embodiments of the present invention, the guide rail 31 includes a body portion 311, the body portion 311 is provided with a sliding groove 312, and the sliding groove 312 is matched with the guide post 321.

Specifically, the body portion 311 may include a plurality of plate bodies 511, two second plate bodies are disposed at two ends of the first plate body, a third plate body is disposed at the other end of the two second plate bodies, the two third plate bodies extend toward each other and are spaced apart, and an extending direction of the two third plate bodies is parallel to an extending direction of the first plate body, so that the first plate body, the second plate body and the third plate body define a chute 312, the guide post 321 extends into the chute 312 and can slide in the chute 312, and the surfaces of the chute 312 defined by the third plate body and the second plate body can limit the guide post 321, so that stability and reliability of sliding fit of the guide rail 31 and the slider 32 can be improved.

As shown in fig. 6, 7, 20 and 24, the guide rail 31 further includes a first flanging plate 313 and a second flanging plate 314 positioned at both sides of the opening of the chute 312, and the first flanging plate 313 and the second flanging plate 314 are connected to the opening-closing door 22.

Specifically, a first flanging plate 313 and a second flanging plate 314 are respectively disposed on the ends of the two third plate bodies facing away from each other, and the first flanging plate 313 and the second flanging plate 314 are connected with the switch door 22.

Thus, on the one hand, the guide rail 31 is connected with the switch door 22 through the first flanging plate 313 and the second flanging plate 314, so that the area of the connection area between the guide rail 31 and the switch door 22 is larger, the connection stability between the guide rail 31 and the switch door 22 can be improved, on the other hand, the first plate body of the guide rail 31 is adjacent to the switch door 22, the first flanging plate 313 and the second flanging plate 314 which are connected with the switch door 22 are arranged away from the switch door 22 relative to the first plate body, the gap between the first flanging plate 313 and the rear side surface of the switch door 22 can be formed into an avoidance space, the structure which is arranged on the switch door 22 and is connected with the first flanging plate 313 and the second flanging plate 314 is arranged in the avoidance space, so that the connection structure can not be exposed on the outer surface of the switch door 22 while the switch door 22 is connected with the guide rail 31, the aesthetic property of the switch door assembly 20 can be improved, and the aesthetic property of the indoor unit 100 can be improved.

As shown in fig. 20 and 21, further, the switch door 22 is provided with a first positioning portion 221 arranged in a row along the moving direction of the switch door 22 and a first connecting portion 222 arranged in a row along the moving direction, the first flanging plate 313 is matched with the first positioning portion 221, and the second flanging plate 314 is connected with the first connecting portion 222.

Specifically, the first connection portions 222 and the first positioning portions 221 are set in groups, one first connection portion 222 and one first positioning portion 221 of each group are set corresponding to one guide rail 31, a plurality of guide rails 31 may be provided between the switch door 22 and the mounting plate 21, the first flanging plate 313 on each guide rail 31 is connected with the corresponding first positioning portion 221, and the second flanging plate 314 on each guide rail 31 is connected with the corresponding first connection portion 222.

Furthermore, the first positioning portion 221 may be formed as a positioning buckle, a positioning boss, etc., and a positioning structure (e.g., a first positioning hole) that mates with the positioning buckle or the positioning boss is provided on the corresponding first flanging plate 313, and the first connecting portion 222 may be formed as a connecting stud and a connecting structure (e.g., a first connecting hole) that mates with the connecting stud is provided on the corresponding second flanging plate 314, so that the guide rail 31 is positioned and mated with the switch door 22 through the first flanging plate 313 located on one side in the left-right direction thereof, and the second flanging plate 314 located on the other side in the left-right direction thereof is fastened and connected with the switch door 22, thereby improving the installation accuracy and the fixing stability of the guide rail 31 on the switch door 22.

It can be appreciated that the guide rail 31 is preferably two rows, corresponding to the first connecting portion 222 and the first positioning portion 221, and each row of the first connecting portion 222 may include a plurality of connecting structures extending along the length direction of the switch door 22, and the first positioning portion 221 may include a plurality of positioning structures extending along the length direction of the switch door 22, so as to avoid the local tilting of the guide rail 31 relative to the switch door 22 and improve the connection stability between the switch door 22 and the guide rail 31.

Further, the two first connection parts 222 are disposed adjacent to each other as compared with the two first positioning parts 221, that is, a distance between the first connection part 222 on the left side and the first connection part 222 on the right side is smaller than a distance between the first positioning part 221 on the left side and the first positioning part 221 on the right side, and the first positioning part 221 is configured as a buckle, and the first positioning part 221 includes a first cylinder 2211 and a second cylinder 2212 located at an end of the first cylinder 2211, the first cylinder 2211 is connected to the switch door 22, the second cylinder 2212 is disposed opposite to the switch door 22, and a first positioning hole 3131 (see fig. 29) adapted for the first cylinder 2211 to pass through and to be in positioning engagement with the second cylinder 2212 is disposed on the first flanging plate 313.

Specifically, the first positioning portion 221 is configured as an L-shaped buckle, and includes a first column 2211 and a second column 2212 located at an end of the first column 2211, where the first column 2211 is connected to the switch door 22, and the second columns 2212 of the two columns of first positioning portions 221 are oppositely disposed and extend toward or away from each other, or extend upward and downward in a column, so that the second column 2212 limits the guide rail 31, so that bending torsion forces borne by the two columns of guide rail 31 can cancel each other, and limit the movement of the guide rail 31 in the front-rear direction, the up-down direction, and the left-right direction, and in an embodiment in which the lead screw nut transmission structure is used to perform power output to drive the switch door 22, the connection stability and reliability of the guide rail 31 and the installation door can be further improved.

In the embodiment shown in fig. 27, the guide rail 31 further includes a support column 315 located on the bottom plate 13 of the chute 312, the guide rail 31 is disposed on the switch door 22, and the support column 315 pushes against the inner surface of the switch door 22.

Therefore, the support column 315 can push against the inner surface of the switch door 22, on one hand, the distance between the guide rail 31 and the mounting plate 21 can be kept stable, so that stable and reliable matching of the guide rail 31 and the guide post 321 is ensured, the offset phenomenon is avoided, the sliding matching stability and reliability of the guide rail 31 and the sliding block 32 are improved, on the other hand, the switch door 22 is effectively supported, the structural strength of the switch door 22 can be improved, the switch door 22 is prevented from being deformed locally and concavely, and the attractiveness of the switch door 22 is improved.

It will be appreciated that the support columns 315 are plural, and that the lengths of the plurality of support columns 315 are different to fit the front projection profile of the switch door 22 in the moving direction (see fig. 27).

That is, as shown in fig. 1 and 2, in order to improve the aesthetic property of the indoor unit 100, the casing 10 is mostly configured to have an arc shape, two ends of the front panel 11 may be configured to be arc shapes, and the guide rail 31 is disposed on an area where the arc surfaces are located, so that the motion stability of the switch door 22 can be improved, and further the lengths of the plurality of support columns 315 are different to adapt to the arc surface area of the switch door 22, so that the support effect on the switch door 22 is better, and the arc area of the switch door 22 can be pushed against, so that deformation of the arc area of the switch door 22 is avoided, and the aesthetic property of the switch door 22 is effectively improved.

As shown in fig. 22, 25 and 26, according to some embodiments of the present invention, the slider 32 includes a first plate portion 322 and a second plate portion 323, and the guide post 321 is disposed at the first plate portion 322.

Specifically, in some embodiments, the front projection profile of the first plate portion 322 in the moving direction of the switch door 22 is smaller than the front projection profile of the second plate portion 323, the front projection profile of the first plate portion 322 and the second plate portion 323 are combined to form a convex profile, the side of the first plate portion 322 away from the second plate portion 323 is provided with a guide post 321, a groove is defined between the guide post 321 and the second plate portion 323, the third plate body of the guide rail 31 extends into the groove, and the guide post 321 and at least part of the first plate body extend into the slide groove 312, so that the guide rail 31 and the slide block 32 can limit each other and guide each other, and the matching stability of the guide rail 31 and the slide block 32 is improved.

Furthermore, more importantly, in the prior art, the first plate portion 322 has a plurality of plate-shaped sections, at least part of the plurality of plate-shaped sections are in sliding fit with the guide rail 31, so that the overall structural stability and strength of the sliding block 32 are low, and deformation is easy to occur.

As shown in fig. 26, further, the guide posts 321 are arranged in groups, each group of guide posts 321 is at least one, and the plurality of groups of guide posts 321 are arranged at intervals in the moving direction.

Therefore, the stress distribution between the sliding blocks 32 and the guide rail 31 is more uniform, and at least one guide post 321 is arranged on the matching area of each sliding block 32 and the guide rail 31, so that the matching stability and reliability of the guide rail 31 and the sliding blocks 32 can be effectively improved.

Further, guide posts 321 are disposed on both sides of the moving direction of the switch door 22, and at least two guide posts 321 are disposed in the sliding groove 311 of the guide rail 31 on both sides of the moving direction of the switch door 22 in the open position and the closed position. Therefore, the opening and closing door 22 can be prevented from being separated from the sliding block 32 at the two limit positions of the opening position and the closing position, the opening and closing door 22 can be prevented from rotating relative to the mounting plate 21 at the limit positions, and the sliding fit stability and reliability of the sliding fit of the sliding rail 31 and the sliding block 32 are improved.

In some embodiments, the sliding chute may have a plurality of guiding segments, where the length of each guiding segment is consistent with the length of the moving stroke of the switch door 22, and each group of guiding posts 321 extends into the corresponding guiding segment, so that the structural strength of the guide rail 31 can be improved and the service life of the guide rail slider structure 30 can be prolonged while sliding guiding and limiting are achieved.

As shown in fig. 25 and 28, further, the second plate portion 323 is provided with a second positioning portion 324 and a second connecting portion 325, and the second plate portion 323 is positioned to the mounting plate 21 by the second positioning portion 324 and is connected to the mounting plate 21 by the second connecting portion 325.

Specifically, the second positioning portion 324 is formed as a positioning protrusion provided on the second plate portion 323, the second connecting portion 325 is formed as a connecting hole on the second plate portion 323, the second positioning hole 215 that mates with the second positioning portion 324 can be provided on the mounting plate 21 correspondingly, the second connecting hole 216 that mates with the second connecting portion 325, preliminary positioning of the slider 32 on the mounting plate 21 is achieved through the second positioning portion 324, and fixed connection of the mounting plate 21 and the slider 32 is achieved through the second connecting portion 325, and the mounting accuracy and the connection stability of the slider 32 on the mounting plate 21 can also be improved while the structural strength of the slider 32 is improved.

Preferably, the second positioning portion 324 is formed as a positioning protrusion with an oblong outline projected forward in the front-rear direction, the second positioning hole 215 is formed as an oblong hole, the positioning accuracy is higher, and a certain bending torsion force can be resisted, so that the guide rail 31 is prevented from being disengaged from the mounting plate 21 after the switch door 22 is impacted laterally, and the structural stability of the switch door assembly 20 is further improved.

As shown in fig. 25, further, the second positioning portions 324 and the second connecting portions 325 are staggered in the moving direction, so that the connection stability is effectively improved, and the stress distribution between the slider 32 and the mounting plate 21 is more uniform.

As shown in fig. 5, according to some embodiments of the present invention, the housing 10 includes a front panel 11, the front panel 11 defining an air outlet 111, the front panel 11 being coupled to a mounting plate 21.

Specifically, the front panel 11, the back panel 12 and the chassis define a mounting space, the mounting plate 21 is disposed in the mounting space, and the mounting plate 21 is disposed between the front panel 11 and the back panel 12, and a mounting structure may be disposed on the front panel 11 and/or the back panel 12, for example, a plurality of mounting studs, mounting holes or other structures are disposed on the front panel 11, and a mounting hole or mounting stud structure matched with the mounting plate 21 is disposed on the mounting plate 21, so as to fix the mounting plate 21 on the front panel 11, thereby improving the fixing stability of the mounting plate 21 on the housing 10.

The mounting plate 21 has mounting flanges thereon at least on both sides of the opening and closing door 22 and connected to the front panel 11.

Wherein, the peripheral edge portion of the mounting plate 21 is formed into a mounting flange, and mounting holes or mounting studs matched with the front panel 11 are arranged on the mounting flange, and the fixing of the mounting plate 21 and the front panel 11 is realized through fasteners such as screws, so that the high stability and reliability of the fixing of the mounting plate 21 on the front panel 11 are effectively improved.

As shown in fig. 3 and 5, according to some embodiments of the present invention, an air outlet grille 40 is further disposed on the air outlet 111, and the mounting plate 21 and the air outlet grille 40 are sequentially disposed in a moving direction of the switch door 22 or the mounting plate 21 and the air outlet grille 40 are integrally formed.

Specifically, in some embodiments, the air-out grille 40 is separately disposed with the mounting plate 21, and the air-out grille 40 is disposed on the air outlet 111, in other embodiments, the air-out grille 40 is integrally formed with the mounting plate 21, in the open position, the air-out grille 40 is located above the switch door 22, the air-out grille 40 and the switch door 22 are staggered or partially overlapped in the vertical direction, in the closed position, the air-out grille 40 is completely shielded by the switch door 22 in the front-rear direction, so as to effectively shield the air-out grille 40, and the shielding effect of the switch door 22 on the air-out grille 40 can be improved.

Further, the air outlet grille 40 is spaced from the switch door 22 in a direction perpendicular to the moving direction, that is, the switch door 22 is spaced from the air outlet grille 40 in the front-back direction, and the edges of the left and right sides of the switch door 22 are spaced from the front panel 11, so that interference between the switch door 22 and the front panel 11 or between the switch door 22 and the air outlet grille 40 is avoided during the movement of the switch door 22, the movement stability of the switch door 22 is improved, abnormal sound is avoided during the movement of the switch door 22, and the use experience of the switch door 22 is improved.

An air conditioner according to an embodiment of a second aspect of the present invention includes: the indoor unit 100 in the above embodiment has the same technical effects as the indoor unit 100, and will not be described here again.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

In the description of the invention, a "first feature" or "second feature" may include one or more of such features.

In the description of the present invention, "plurality" means two or more.

In the description of the invention, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the invention, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (14)

1. An indoor unit, comprising:

-a housing (10), the housing (10) having an air outlet (111);

a door opening and closing assembly (20), the door opening and closing assembly (20) comprising: a mounting plate (21) and a switch door (22), wherein the mounting plate (21) is arranged on the shell (10), and the switch door (22) is movably arranged on the mounting plate (21) so as to switch between a first position for opening the air outlet (111) and a second position for closing the air outlet (111); wherein the method comprises the steps of

The switch door (22) with mounting panel (21) is through transmission structure (50) power connection, just be provided with storage tank (211) on mounting panel (21), transmission structure (50) set up in storage tank (211), the inboard of switch door (22) has orientation mounting portion (223) that mounting panel (21) extended, mounting portion (223) stretch into storage tank (211) and with power take off (51) of transmission structure (50) link to each other.

2. The indoor unit according to claim 1, wherein the transmission structure (50) is configured as a screw-nut transmission structure, and a screw is provided to the mounting plate (21), a nut plate is connected to the switch door (22), and an axis of the screw is parallel to a movement direction of the switch door (22).

3. The indoor unit according to claim 2, wherein bearing blocks (53) are arranged at two ends of the screw rod, bearings (55) are arranged in the bearing blocks (53), the bearings (55) are connected with the screw rod, and the bearing blocks (53) are provided with first mounting lugs (531), and the first mounting lugs (531) are connected with the mounting plate (21).

4. An indoor unit according to claim 3, wherein the first mounting lug (531) is provided with a first limit portion (532) and a first mounting hole (533), the mounting plate (21) is provided with a first fitting portion (212) for positioning fit with the first limit portion (532) and a first fitting portion (213) for fitting with the first mounting hole (533), and the two first mounting holes (533) on the two bearing blocks (53) are disposed adjacent to each other with respect to the two first limit portions (532).

5. The indoor unit of claim 3, further comprising: the power source (23), be provided with mount (214) in holding groove (211), power source (23) set up in mount (214), just the output shaft of power source (23) wears to establish mount (214) in order to with the lead screw passes through shaft coupling (54) power and links to each other.

6. Indoor unit according to claim 5, characterised in that the coupling (54) is located between the bearing (55) and the power source (23).

7. The indoor unit of claim 2, wherein the nutplate comprises: the device comprises a plate body (511) and a cylinder body (512) arranged on the middle line of the plate body (511), wherein the cylinder body (512) is meshed with the screw rod, and the plate body (511) is connected with the switch door (22).

8. The indoor unit according to claim 7, wherein a second limiting portion (513) and a second mounting hole (514) are provided on the nut plate, the mounting portion (223) has a second fitting portion (224) that fits the second limiting portion (513) and a second fitting portion (225) that fits the second mounting hole (514), and the second mounting hole (514) is plural.

9. The indoor unit of claim 1, wherein the housing (10) includes a front panel (11), the front panel (11) defining the air outlet (111), the front panel (11) being connected to the mounting plate (21).

10. The indoor unit according to claim 1, wherein the air outlet (111) is further provided with an air outlet grille (40), and the mounting plate (21) and the air outlet grille (40) are sequentially arranged in the moving direction of the switch door (22) or the mounting plate (21) and the air outlet grille (40) are integrally formed.

11. The indoor unit of claim 10, wherein the air outlet grille (40) is spaced from the mounting plate (21) in a direction perpendicular to the direction of movement.

12. The indoor unit of claim 1, further comprising: and the switch door (22) and the mounting plate (21) are guided in a movement way through the guide structure.

13. The indoor unit of claim 12, wherein the guide structure is configured as a rail slider structure (30), and a rail (31) is connected to the switch door (22), and a slider (32) is connected to the mounting plate (21).

14. An air conditioner, comprising: the indoor unit of any one of claims 1-13.

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