CN110220245B

CN110220245B - Indoor unit of air conditioner

Info

Publication number: CN110220245B
Application number: CN201910425028.2A
Authority: CN
Inventors: 李进超; 孙婷; 郝本华; 李国行; 孔令波; 崔化超
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2021-04-20
Anticipated expiration: 2039-05-21
Also published as: CN110220245A

Abstract

The invention belongs to the technical field of air conditioners and aims to solve the problem that when a wind shield of an existing air conditioner indoor unit is subjected to external force, a large flash seam is easy to occur, so that an air outlet cannot be sealed, foreign matters are easy to enter the inside of the air conditioner indoor unit, and then internal parts of the air conditioner indoor unit are damaged. The air conditioner indoor unit comprises a shell, a driving mechanism, a wind shield and an elastic locking assembly, wherein the shell is provided with an air outlet, the driving mechanism can drive the wind shield to open/close the air outlet, the elastic locking assembly is arranged to lock the wind shield at a limit position, and the limit position is a position where the wind shield completely seals the air outlet. According to the air conditioner air outlet device, when the air conditioner is turned off, the air outlet can be completely sealed by the air baffle all the time, external foreign matters cannot enter the interior of the indoor unit of the air conditioner to damage internal parts, the overall attractiveness of the air conditioner cannot be influenced, and the user experience is improved.

Description

Indoor unit of air conditioner

Technical Field

The invention belongs to the technical field of air conditioners, and particularly provides an air conditioner indoor unit.

Background

The air conditioner is a device capable of adjusting the indoor environment temperature, the household air conditioner comprises a hanging type air conditioner and a vertical type air conditioner, and when the air conditioner does not operate, in order to prevent foreign matters such as dust and insects from entering the inside of the indoor unit of the air conditioner, a wind shield needs to be arranged at the air outlet of the indoor unit of the air conditioner, so that certain protection effect is achieved on internal parts of the indoor unit of the air conditioner.

In the prior art, a wind deflector of an air conditioner generally adopts a structure driven by a motor, a gear and a rack in a matching way, taking the structure of the vertical air conditioner shown in fig. 1 to 3 as an example, when the air conditioner is started, as shown in fig. 1, the motor (not shown in the figure) drives the gear 1 to rotate anticlockwise, the rack 2 moves towards the right side through the meshing action of the gear 1 and the rack 2, so that the wind deflector 3 opens the air outlet 4, when the air conditioner is shut down, the motor drives the gear 1 to rotate clockwise, the rack 2 moves towards the left side through the meshing action of the gear 1 and the rack 2, and the wind deflector 3 closes the air outlet 4. In order to realize that the flash seam between the wind shield 3 and the left side panel is small after the wind shield 3 closes the air outlet 4, an inclined guide structure 51 is generally arranged at the volute tongue 5 of the volute of the indoor unit of the air conditioner, so that the flash seam between the wind shield 3 and the left side panel is reduced. However, in practical applications, that is, after the air conditioner is turned off, a user may touch the wind deflector 3 carelessly, when the user touches the wind deflector 3, a force perpendicular to the wind deflector 3 or substantially perpendicular to the wind deflector 3 is generally applied to the wind deflector 3, due to the existence of the inclined guide structure 51, the wind deflector 3 may move to the right (as shown in fig. 2), after the external force disappears, due to the rebound effect, a very large gap is exposed between the wind deflector 3 and the left panel (as shown in fig. 3), so that the air outlet 4 cannot be closed, and a foreign object is likely to enter the inside of the air conditioner indoor unit, thereby damaging internal parts of the air conditioner indoor unit and seriously affecting the aesthetic property of the air conditioner indoor unit.

Therefore, there is a need in the art for a new air conditioning indoor unit that solves the above problems.

Disclosure of Invention

In order to solve the problems in the prior art, namely to solve the problem that when a wind shield of an existing air-conditioning indoor unit is subjected to external force, a large flash seam is easy to occur, so that an air outlet cannot be sealed, foreign matters are easy to enter the inside of the air-conditioning indoor unit, and further internal parts of the air-conditioning indoor unit are damaged.

In the preferable technical scheme of the indoor unit of the air conditioner, the volute is arranged in the shell, the elastic locking assembly comprises a first locking piece and a second locking piece, the first locking piece is arranged on a volute tongue of the volute, the second locking piece is arranged on the wind shield, and the first locking piece and the second locking piece are in locking fit to enable the wind shield to be kept at the limit position.

In the preferable technical scheme of the indoor unit of the air conditioner, the first locking part comprises a locking seat arranged on the volute tongue and an elastic locking hook connected to the locking seat, the second locking part comprises a locking rod arranged on the wind shield and a limiting structure arranged on the locking rod, and the limiting structure is arranged to be capable of being locked with the elastic locking hook and unlocked with the elastic locking hook.

In the preferable technical scheme of the air-conditioning indoor unit, the limiting structure comprises an accommodating cavity arranged on the lock rod and a guide protrusion arranged in the accommodating cavity, a limiting groove is formed in the guide protrusion, the guide protrusion and the inner wall of the lock rod form a first guide channel and a second guide channel which are communicated, a first limiting step is arranged at the joint of the first guide channel and the second guide channel, a second limiting step is arranged at the tail end of the second guide channel, the guide protrusion is arranged to be matched with the elastic lock hook so that the elastic lock hook can move from the head end of the first guide channel to the joint of the first guide channel and the second guide channel, the elastic lock hook is clamped in the limiting groove and clamped on the limiting side of the first limiting step, the first limiting step can prevent the elastic lock hook from reversely entering the first guide channel, and the guide protrusion can be matched with the elastic lock hook so that the elastic lock hook can move from the joint of the first guide channel and the second guide channel to the limiting side of the first limiting step The end of the second guide channel and thus the elastic locking hook is disengaged from the limiting groove and is clamped on the limiting side of the second limiting step, and the second limiting step can prevent the elastic locking hook from reversely entering the second guide channel.

In the preferable technical scheme of the indoor unit of the air conditioner, a third limiting step is arranged on the lock rod and in the first guide channel, and the third limiting step is arranged to prevent the elastic lock hook from moving reversely in the first guide channel.

In the preferable technical scheme of the air-conditioning indoor unit, a fourth limiting step is arranged on the lock rod and in the second guide channel, and the fourth limiting step is arranged to prevent the elastic lock hook from moving reversely in the second guide channel.

In the preferable technical scheme of the indoor unit of the air conditioner, one side of the lock base facing the lock rod is provided with an opening, and the elastic lock hook is connected inside the lock base.

In a preferred embodiment of the above air conditioning indoor unit, an elastic member is disposed in the lock base, and the elastic member is configured to cushion the lock lever when the lock lever enters the lock base from the opening.

In a preferred embodiment of the above air conditioning indoor unit, the elastic member includes a fixed column connected to the inside of the lock seat and a spring partially sleeved on the fixed column.

In the preferable technical scheme of the air conditioner indoor unit, the driving mechanism comprises a driving motor, a gear and a rack, the driving motor is arranged on the shell, an output shaft of the driving motor is connected with the gear, the rack is arranged on the wind shield, the gear is meshed with the rack, and the driving motor can drive the gear to rotate so as to enable the rack to move and accordingly drive the wind shield to move, so that the wind shield opens/closes the air outlet.

The technical scheme includes that the elastic locking assembly is arranged in the air conditioner indoor unit, so that the air baffle can be always kept at a position completely closing the air outlet after the air outlet is closed by the air baffle, even if a user accidentally touches the air baffle, the air baffle cannot move towards the direction of opening the air outlet, and by means of the arrangement, when the air conditioner is turned off, the air baffle can completely close the air outlet all the time, external foreign matters (such as dust, insects and the like) cannot enter the air conditioner indoor unit, damage to internal parts of the air conditioner indoor unit is avoided, stable and reliable operation of the air conditioner is guaranteed, the service life of the air conditioner is prolonged, the overall attractiveness of the air conditioner cannot be affected, and user experience is improved.

Further, because the spiral case bears and holds the part of fan, its intensity is very high, consequently, through set up first retaining member on the snail tongue of spiral case, set up the second retaining member on the deep bead for first retaining member has sufficient intensity to support when second retaining member lockingly cooperates each other, guarantees its spacing intensity each other, makes the deep bead can not make the deep bead take place the displacement easily when receiving the exogenic action more, guarantees that the deep bead seals the air outlet completely always.

Further, can lock each other with the elasticity latch hook through limit structure for make the deep bead unable removal through the locking cooperation of limit structure and elasticity latch hook when the deep bead closes the air outlet completely, thereby close the air outlet totally steadily, avoid forming the flash joint, can with elasticity latch hook unblock each other through limit structure, make can not influence the removal of deep bead because limit structure and elasticity latch hook when the deep bead opens the air outlet.

Furthermore, the elastic lock hook can move into the limiting groove through the first guide channel through the guide protrusion, and the elastic lock hook is clamped at the limiting side of the first limiting step, so that when the wind shield is pulled by external force, the wind shield cannot move towards the direction far away from the volute tongue through the limiting effect of the limiting groove and the first limiting step, thereby ensuring that no flash seam is formed between the wind shield and the shell, preventing external foreign matters (such as dust, insects and the like) from entering the inside of the shell, avoiding damaging internal parts of an indoor unit of the air conditioner, ensuring the stable and reliable operation of the air conditioner, prolonging the service life of the air conditioner, and not influencing the overall aesthetic property of the air conditioner, the elastic lock hook can be separated from the limiting groove through the second guide channel through the guide protrusion, and the elastic lock hook is clamped at the limiting side of the second limiting step, so that the driving mechanism cannot obstruct the wind shield from moving towards the direction far away from the volute tongue when driving the wind shield to, guarantee the deep bead and open the air outlet smoothly, satisfy user's user demand, promote user experience.

Furthermore, the elastic locking hook can be limited to move reversely in the first guide channel through the third limiting step, namely, the elastic locking hook cannot move to the head end of the first guide channel from the joint of the first guide channel and the second guide channel through the first guide channel, and smooth locking operation of the elastic locking assembly can be further guaranteed through the arrangement.

Furthermore, the elastic locking hook can be limited to move reversely in the second guide channel through the fourth limiting step, namely, the elastic locking hook cannot move to the joint of the first guide channel and the second guide channel from the tail end of the second guide channel through the second guide channel, and smooth unlocking operation of the elastic locking assembly can be further guaranteed through the arrangement.

Further, through set up the opening on the lock seat, the elasticity latch hook is connected in the inside of lock seat for can be located the inside of lock seat when elasticity latch hook and limit structure lock each other, avoid being infected by external dust, and improve the aesthetic property of product.

Further, can cushion the locking lever through elastic component, avoid the locking lever to crash the lock seat, improve elasticity locking Assembly's life, avoid the user to frequently change or maintain elasticity locking Assembly, promote user experience.

Further, the spring can be fixed through the fixed column, so that the spring can output stable elastic force, the spring is prevented from radially deflecting, and stable buffering of the lock rod is guaranteed.

Drawings

Preferred embodiments of the present invention will now be described with reference to the accompanying drawings, in conjunction with a floor air conditioner, wherein:

FIG. 1 is a first schematic view of a prior art indoor unit of a floor air conditioner;

FIG. 2 is a schematic structural view II of a prior art indoor unit of a floor air conditioner;

FIG. 3 is a third schematic view of a prior art indoor unit of a floor air conditioner;

FIG. 4 is a schematic view of the indoor unit of the floor air conditioner according to the present invention;

FIG. 5 is a first schematic view of the internal structure of an embodiment of the resilient locking assembly of the present invention;

FIG. 6 is a second schematic view of the internal structure of the embodiment of the elastic locking assembly of the present invention;

FIG. 7 is a third schematic view of the internal structure of an embodiment of the resilient locking assembly of the present invention;

FIG. 8 is a fourth schematic internal construction of the resilient locking assembly embodiment of the present invention;

fig. 9 is a force analysis diagram of a prior art floor air conditioner indoor unit.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. For example, although the technical solution of the present invention is described in connection with a vertical air conditioner, the technical solution of the present invention is obviously also applicable to a hanging air conditioner and some commercial air conditioners, and such modifications and changes of the application objects do not constitute a limitation to the present invention, and should be limited within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 by those skilled in the art according to specific situations.

The invention provides a vertical air conditioner indoor unit, aiming at solving the problems that when an air conditioner is shut down, the air outlet can be completely sealed by a wind shield, external foreign matters (such as dust, insects and the like) cannot enter the inside of the air conditioner indoor unit, the internal parts of the air conditioner indoor unit are prevented from being damaged, the stable and reliable operation of the air conditioner is ensured, the service life of the air conditioner is prolonged, the integral aesthetic property of the air conditioner is not influenced, and the user experience is improved.

Specifically, the vertical air conditioner indoor unit comprises a shell, a driving mechanism, a wind shield and an elastic locking assembly, wherein an air inlet and an air outlet are formed in the shell, the driving mechanism can drive the wind shield to open/close the air outlet, the elastic locking assembly is arranged to lock the wind shield at a limit position, the limit position is a position where the wind shield completely seals the air outlet, a volute is arranged in the shell, a cross-flow fan is arranged in the volute, and an air channel for communicating the air outlet with the air inlet is formed in the volute. In the invention, the elastic locking component can be only arranged on the shell, or only arranged on the volute tongue of the volute, or only arranged on the wind shield, or one part of the elastic locking component is arranged on the shell, the other part of the elastic locking component is arranged on the wind shield, or one part of the elastic locking component is arranged on the volute tongue of the volute, and the other part of the elastic locking component is arranged on the wind shield. In addition, the driving mechanism may adopt a structure of a linear motor, or a structure of a motor and a ball screw in cooperation, or a structure of a cylinder/hydraulic cylinder, or a structure of a motor and a rack and pinion in cooperation, and those skilled in the art may flexibly set the specific structure of the driving mechanism according to the movement form of the wind deflector in practical application, for example, if the movement track of the wind deflector is an arc track, then the driving mechanism preferably adopts a structure of a motor and a rack and pinion in cooperation. The technical scheme of the invention is further explained by taking a driving mechanism with a motor matched with a gear rack as an example.

Specifically, as shown in fig. 4, the driving mechanism includes a driving motor (not shown), a gear 10 and a rack 20, the driving motor is disposed on the housing 100, an output shaft of the driving motor is connected to the gear 10, the rack 20 is disposed on the wind deflector 30, the gear 10 is engaged with the rack 20, and the driving motor can drive the gear 10 to rotate so as to move the rack 20 and thus move the wind deflector 30, so that the wind deflector 30 opens/closes the wind outlet 40. Taking the structure shown in fig. 4 as an example, when the driving motor drives the gear 10 to rotate clockwise, the gear 10 drives the rack 20 to move leftward, so that the rack 20 drives the wind deflector 30 to close the wind outlet 40, and when the driving motor drives the gear 10 to rotate counterclockwise, the gear 10 drives the rack 20 to move rightward, so that the rack 20 drives the wind deflector 30 to open the wind outlet 40.

Preferably, as shown in figure 4, the resilient locking assembly comprises a first locking member 50 and a second locking member 60, the first locking member 50 being disposed on the volute tongue 70 and the second locking member 60 being disposed on the wind deflector 30, the first locking member 50 lockingly engaging with the second locking member 60 to retain the wind deflector 30 in the extreme position. The first locking member 50 and the second locking member 60 may adopt the structure of the elastic locking hook and the locking rod, or the structure of the elastic locking hook and the elastic protrusion, and those skilled in the art can flexibly set the specific structure of the first locking member 50 and the second locking member 60 in practical application, as long as the wind deflector 30 can be kept at the position completely closing the wind outlet 40 by the first locking member 50 and the second locking member 60.

In a preferred embodiment, as shown in fig. 5 to 8, the first locking member 50 includes a locking seat 501 provided on the worm bolt 70 and an elastic locking hook 502 connected to the locking seat 501, and the second locking member 60 includes a locking lever 601 provided on the wind deflector 30 and a stopper structure provided on the locking lever 601, the stopper structure being configured to be capable of locking with the elastic locking hook 502 and unlocking with the elastic locking hook 502. The elastic locking hook 502 may be connected to the outside of the lock holder 501 or connected to the inside of the lock holder 501, and when the elastic locking hook 502 is connected to the inside of the lock holder 501, an opening 5011 may be provided on one side of the lock holder 501 facing the locking rod 601, so that the locking rod 601 can enter the lock holder 501 through the opening 5011, so that the elastic locking hook 502 can be matched with the limiting structure, thereby achieving locking and unlocking.

In practical application, as shown in fig. 5 to 8, locking lever 601 can adopt the integral type structure, also can adopt split type structure, when locking lever 601 adopts split type structure, locking lever 601 can be including continuous pole portion and connecting portion, pole portion sets up on deep bead 30, limit structure sets up on connecting portion, one side that connecting portion are close to pole portion can set up to V type structure, one side that pole portion is close to connecting portion can set up to diamond structure, diamond structure's outer wall shape and V type structure's inner wall shape looks adaptation, when locking lever 601 stretches into in the lock seat 501, opening 5011 can extrude V type structure, thereby make V type structure draw in order closely to wrap up diamond structure, make V type structure press from both sides diamond structure tightly, guarantee the joint strength of pole portion and connecting portion.

Preferably, as shown in fig. 5 to 8, the limiting structure includes a receiving cavity provided on the lock lever 601 and a guide protrusion 602 provided in the receiving cavity, the guide protrusion 602 is provided with a limiting groove 6021, the guide protrusion 602 forms a first guide channel 603 and a second guide channel 604 communicating with the inner wall of the lock lever 601, a junction a2 of the first guide channel 603 and the second guide channel 604 is provided with a first limiting step 605, a terminal A3 of the second guide channel 604 is provided with a second limiting step 606, the guide protrusion 602 is configured to cooperate with the elastic lock hook 502 to move the elastic lock hook 502 from a head end a1 of the first guide channel 603 to a junction a2 of the first guide channel 603 and the second guide channel 604 and thus to allow the elastic lock hook 502 to be caught in the limiting groove 6021 and on a limiting side of the first limiting step 605, the first limiting step 605 can prevent the elastic lock hook 502 from reversely entering the first guide channel 603, the guide projection 602 is further provided to be able to cooperate with the elastic locking hook 502 to move the elastic locking hook 502 from the junction a2 of the first guide channel 603 and the second guide channel 604 to the end A3 of the second guide channel 604 and thus to disengage the elastic locking hook 502 from the stopper groove 6021 and to be caught at the stopper side of the second stopper step 606, the second stopper step 606 being able to prevent the elastic locking hook 502 from reversely entering the second guide channel 604. Wherein the reverse movement of the elastic locking hook 502 in the first guide channel 603 means that the elastic locking hook 502 moves from the junction a2 of the first guide channel 603 and the second guide channel 604 through the first guide channel 603 to the head end a1 of the first guide channel 603, the reverse movement of the elastic locking hook 502 in the second guide channel 604 means that the elastic locking hook 502 moves from the tail end A3 of the second guide channel 604 to the junction a2 of the first guide channel 603 and the second guide channel 604, in practical applications, the head end a1 of the first guide channel 603 and the tail end A3 of the second guide channel 604 may coincide (as in the configuration shown in fig. 5 to 8), of course, the head end a1 of the first guide channel 603 and the tail end A3 of the second guide channel 604 may not coincide, and those skilled in the art can flexibly set the specific setting positions of the head end a1 of the first guide channel 603 and the tail end A3 of the second guide channel 604 in practical applications. Taking the structure shown in fig. 5 to 8 as an example, that is, the head end a1 of the first guide channel 603 coincides with the tail end A3 of the second guide channel 604, as shown in fig. 5 to 7, when the driving mechanism drives the wind deflector 30 to close the wind outlet 40 and thus the lock rod 601 extends into the lock seat 501, due to the limiting action of the second limiting step 606, the elastic lock hook 502 is guided in abutment with the right side wall of the guide protrusion 602, so that the elastic lock hook 502 moves in the first guide channel 603 and moves from the head end a1 of the first guide channel 603 to the junction a2 (in the direction of the arrow shown in fig. 7) of the first guide channel 603 and the second guide channel 604, at this time, the hook portion of the elastic lock hook 502 is caught in the limiting groove 6021, and the hook portion of the elastic lock hook 502 is caught in the limiting surface of the first limiting step 605 (i.e., the left side surface of the first limiting step 605 shown in fig. 5 to 7), at this time, the elastic lock hook, as shown in fig. 7, due to the cooperation of the limiting groove 6021 and the first limiting step 605, the wind deflector 30 cannot drive the lock rod 601 to extend out of the lock seat 501, that is, the wind deflector 30 cannot move under the action of external force of a user. When the driving mechanism drives the wind deflector 30 to open the wind outlet 40, the driving mechanism drives the wind deflector 30 and thus the lock rod 601 continues to move in the direction of extending into the lock seat 501, due to the limiting function of the first limiting step 605, the elastic locking hook 502 is firstly separated from the limiting groove 6021, then, the driving mechanism drives the wind deflector 30 and thus the lock bar 601 to move in a direction to protrude out of the lock holder 501, at which time the elastic lock hook 502 is guided in abutment with the right side wall of the guide protrusion 602, so that the elastic locking hook 502 moves in the second guide channel 604 and moves from the junction a2 of the first guide channel 603 and the second guide channel 604 to the end A3 of the second guide channel 604 (in the direction of the arrow shown in fig. 8), at which time the elastic locking hook 502 and the stopper structure are unlocked from each other, and the elastic locking hook 502 is located on the stopping surface of the second stopping step 606 (i.e., the right side surface of the second stopping step 606 shown in fig. 5 to 8). It should be noted that, in the above description, in order to realize the movement of the elastic lock hook 502 in the first guide channel 603 and the second guide channel 604, the elastic lock hook 502 should be aligned with the head end a1 of the first guide channel 603, that is, the tail end A3 of the second guide channel 604 in a natural state (that is, in an unstressed state), and the hook portion of the elastic lock hook 502 preferably abuts against the inner bottom wall of the lock rod 601, so as to ensure that the elastic lock hook 502 can move into the limit groove 6021 by its elastic restoring action, and the hook portion of the elastic lock hook 502 can be hooked with the limit groove 6021, the limit surface of the first limit step 605 and the limit surface of the second limit step 606, respectively. In practical applications, the elastic latch hook 502 is preferably made of an elastic metal material, so that the locking strength can be ensured under the condition of ensuring the elastic force.

Preferably, as shown in fig. 5 to 8, a third limiting step 607 is disposed on the lock lever 601 in the first guide channel 603, and the third limiting step 607 is configured to prevent the elastic locking hook 502 from moving reversely in the first guide channel 603. Through the arrangement, the bottom surface of the first guide channel 603 is a stepped surface, and the limiting surface of the third limiting step 607 can hook the hook part of the elastic locking hook 502, so that the elastic locking hook 502 can only move in the first guide channel 603 in the forward direction and cannot move in the reverse direction. The number of the third limiting steps 607 may be one or multiple, and those skilled in the art may flexibly set the number of the third limiting steps 607 in practical application.

Preferably, as shown in fig. 5 to 8, a fourth limit step 608 is disposed on the lock lever 601 and in the second guide channel 604, and the fourth limit step 608 is configured to prevent the elastic locking hook 502 from moving reversely in the second guide channel 604. Through such an arrangement, the bottom surface of the second guide channel 604 is a stepped surface, and the limiting surface of the fourth limiting step 608 can hook the hook portion of the elastic locking hook 502, so that the elastic locking hook 502 can only move in the second guide channel 604 in the forward direction and cannot move in the reverse direction. The number of the fourth limiting steps 608 may be one or multiple, and those skilled in the art may flexibly set the number of the fourth limiting steps 608 in practical application.

In the above, alternatively, it is also possible to provide the bottom surfaces of the first guide channel 603 and the second guide channel 604 as slopes so that the elastic locking hook 502 can smoothly move in the first guide channel 603 and the second guide channel 604 and then the elastic locking hook 502 is restricted from reversely moving only by the first stopper step 605 and the second stopper step 606.

Preferably, an elastic member is provided in the lock holder 501, and the elastic member is provided to be able to cushion the lock bar 601 when the lock bar 601 enters the lock holder 501 from the opening 5011. The elastic member may be a spring-based structure, an elastic block structure, or an inflatable elastic structure (e.g., an elastic ball, an elastic airbag, etc.), and those skilled in the art may flexibly set the specific structure of the elastic member in practical applications as long as the elastic member can cushion the lock rod 601 when the lock rod 601 enters the lock seat 501.

Preferably, as shown in fig. 5 to 8, the elastic member includes a fixing post connected to the inside of the lock case 501 and a spring 80 partially fitted over the fixing post. Can carry out radial spacing to spring 80 through the fixed column for radial drunkenness is avoided appearing in spring 80, thereby exports axial elastic force steadily. Wherein, the fixing posts and the springs 80 may be set as one set or may be set as multiple sets, taking the fixing posts and the springs 80 as two sets as an example, as shown in fig. 5 to 8, one of the fixing posts and the springs 80 is located on one side of the elastic locking hook 502, and the other fixing post and the spring 80 is located on the other side of the elastic locking hook 502. In practical application, a plug-in post may be further disposed on one side of the lock rod 601 facing the lock seat 501, and when the lock rod 601 extends into the lock seat 501, the plug-in post of the lock rod 601 extends into the spring 80, that is, a part of the spring 80 is sleeved on the plug-in post, so as to guide the movement of the lock rod 601 through the elastic limiting function of the spring 80, and ensure that the movement of the lock rod 601 does not laterally deviate.

Preferably, the lock seat 501 includes a seat body and a cover body that are fastened together, that is, the cover body and the seat body can be detached from each other, the components such as the elastic lock hook 502 can be accommodated by fastening the cover body and the seat body, and the components such as the elastic lock hook 502 can be inspected, maintained and replaced by detaching the cover body and the seat body.

As shown in fig. 9, in the analysis of the external force applied to the vertical air conditioning indoor unit in the prior art, when the wind deflector 3 receives a thrust force F (a vertical component force F1 and a horizontal component force F2), and the elasticity of the wind deflector 3 is neglected, the wind deflector 3 receives a reaction force Ff (a vertical component force F3 and a horizontal component force F4) applied to the wind deflector 3 by the vortex tongue 5 at the same time, and under the action of the inclined surface guide structure 51 on the vortex tongue 5, the component forces F1 and F3 are equal in magnitude and opposite in direction and cancel each other out, and the component forces F2 and F4 are equal in magnitude and same in direction, so that the wind deflector 3 moves to the right side under the action of the horizontal component forces F2 and F4. Due to the locking effect of the elastic locking assembly, the wind deflector 30 cannot move again under the action of human external force after the wind deflector 30 completely seals the air outlet 40, and the wind deflector 30 can move only when the elastic locking assembly is unlocked.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. An air-conditioning indoor unit is characterized by comprising a shell, a driving mechanism, a wind shield and an elastic locking assembly, wherein an air outlet is formed in the shell, the driving mechanism can drive the wind shield to open/close the air outlet, the elastic locking assembly is arranged to lock the wind shield at a limit position, the limit position is a position at which the wind shield completely seals the air outlet,

a volute is arranged in the shell, the elastic locking assembly comprises a first locking piece and a second locking piece, the first locking piece is arranged on a volute tongue of the volute, the second locking piece is arranged on the wind shield, the first locking piece and the second locking piece are in locking fit to enable the wind shield to be kept at the limit position,

the first locking piece comprises a locking seat arranged on the volute tongue and an elastic locking hook connected to the locking seat, the second locking piece comprises a locking rod arranged on the wind shield and a limiting structure arranged on the locking rod, the limiting structure is arranged to be capable of being locked with the elastic locking hook and unlocked with the elastic locking hook,

the limiting structure comprises an accommodating cavity arranged on the lock rod and a guide protrusion arranged in the accommodating cavity, a limiting groove is arranged on the guide protrusion, the guide protrusion and the inner wall of the lock rod form a first guide channel and a second guide channel which are communicated, a first limiting step is arranged at the joint of the first guide channel and the second guide channel, a second limiting step is arranged at the tail end of the second guide channel, the guide protrusion is arranged to be matched with the elastic lock hook so that the elastic lock hook can move to the joint of the first guide channel and the second guide channel from the head end of the first guide channel and accordingly be clamped in the limiting groove and clamped at the limiting side of the first limiting step, and the first limiting step can prevent the elastic lock hook from reversely entering the first guide channel, the guide protrusion is also configured to be capable of cooperating with the elastic locking hook to enable the elastic locking hook to move from the connection position of the first guide channel and the second guide channel to the tail end of the second guide channel, so that the elastic locking hook is separated from the limiting groove and clamped on the limiting side of the second limiting step, and the second limiting step can prevent the elastic locking hook from reversely entering the second guide channel.

2. An indoor unit of an air conditioner according to claim 1, wherein a third limiting step is provided on the lock lever and in the first guide passage, and the third limiting step is configured to prevent the elastic latch hook from moving reversely in the first guide passage.

3. An indoor unit of an air conditioner according to claim 1, wherein a fourth limit step is provided on the lock lever and in the second guide passage, and the fourth limit step is configured to prevent the elastic latch hook from moving reversely in the second guide passage.

4. An indoor unit of an air conditioner according to claim 1, wherein an opening is provided at a side of the lock holder facing the lock lever, and the elastic locking hook is connected to an inside of the lock holder.

5. An indoor unit of an air conditioner according to claim 4, wherein an elastic member is provided in the lock holder, the elastic member being provided to be able to cushion the lock lever when the lock lever enters the lock holder from the opening.

6. An indoor unit of an air conditioner according to claim 5, wherein the elastic member includes a fixing post connected to the inside of the lock holder, and a spring partially fitted over the fixing post.

7. An indoor unit of an air conditioner according to any one of claims 1 to 6, wherein the driving mechanism includes a driving motor, a gear and a rack, the driving motor is disposed on the casing, an output shaft of the driving motor is connected to the gear, the rack is disposed on the air deflector, the gear is engaged with the rack, and the driving motor can drive the gear to rotate so as to move the rack and thus drive the air deflector to move, thereby opening/closing the air outlet by the air deflector.