Hanging type air conditioner indoor unit

Abstract

The utility model discloses a hanging type air conditioner indoor unit, and relates to the technical field of household appliances, the hanging type air conditioner indoor unit comprises a machine shell, a heat exchanger, a heat exchange fan, an air guide plate and a push-out assembly; the heat exchanger and the heat exchange fan are arranged in the machine shell. The heat exchange fan is located on the leeward side of the heat exchanger. The air guide plate is arranged at the air outlet of the machine shell in a rotatable mode. The rotating axis of the air guide plate is arranged in the length direction of the machine shell; the push-out assembly comprises a push rod and a crank. One end of the push rod is arranged in the shell, and the other end of the push rod is arranged outside the shell; the end, arranged outside the machine shell, of the push rod is connected to the air deflector. A first connecting part is arranged at one end, in the shell, of the push rod; the crank is arranged in the machine shell, a second connecting part is arranged on the outer edge of the crank, and the second connecting part is arranged in the first connecting part and can slide along the first connecting part; when the crank rotates, the second connecting part slides relative to the first connecting part and drives the push rod to linearly move; the distance from the second connecting part to the rotation center of the crank is R, and the linear motion distance L1 of the push rod is smaller than or equal to 2R.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a hanging type air conditioner indoor unit. BACKGROUND

[0002] With the increasing requirement of air conditioner blowing performance, some hanging type air conditioner indoor units drive the air deflector to rotate through a rotating motor after pushing the air deflector out a certain distance through a push rod, so as to expand the coverage of air deflector blowing, make the cold air or warm air more evenly delivered to each corner of the room, reduce the unevenness of indoor temperature, improve the refrigeration / heating efficiency of the air conditioner, and also make the air deflector have a larger range of rotation angle, so that the user can more flexibly adjust the blowing direction and angle to meet the individualized blowing demand.

[0003] However, in the prior art, the mechanism driving the movement of the push rod occupies a large space and has poor movement stability, so that the air deflector is prone to shaking during the pushing process.

[0004] Therefore, the present application is proposed. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies in the related art, the present application provides a hanging type air conditioner indoor unit based on the principle of crank push rod, which drives the push rod to move linearly through the rotation of the crank to push out or retract the air deflector, and calculates the movement distance of the push rod and the size of the crank, so as to reduce the occupied space of the crank under the premise of ensuring the movement distance of the push rod, and facilitate the arrangement of the crank and the push rod.

[0006] The present application provides a hanging type air conditioner indoor unit, which comprises:

[0007] A shell, a shell air inlet is arranged at the top of the shell, and a shell air outlet is arranged below the front side of the shell;

[0008] A heat exchanger, the heat exchanger is arranged inside the shell, and at least part of the windward side of the heat exchanger is arranged towards the shell air inlet;

[0009] A heat exchange fan, the heat exchange fan is arranged inside the shell, and the heat exchange fan is located at the leeward side of the heat exchanger;

[0010] An air deflector, the air deflector is arranged at the shell air outlet in a rotatable manner; the rotation axis of the air deflector is arranged along the length direction of the shell;

[0011] A pushing-out assembly, which is used to drive the air deflector to push out in a direction away from the shell air outlet or retract in a direction close to the shell air outlet; the pushing-out assembly comprises:

[0012] A push rod, one end of the push rod is arranged inside the shell, and the other end of the push rod is arranged outside the shell; the end of the push rod arranged outside the shell is connected to the air deflector; the end of the push rod arranged inside the shell is provided with a first connecting portion;

[0013] The crank is arranged in the shell, and a second connecting part is arranged at the outer edge of the crank and is arranged in the first connecting part and can slide along the first connecting part; when the crank rotates, the second connecting part slides relative to the first connecting part and drives the push rod to move linearly;

[0014] The distance from the second connecting part to the rotation center of the crank is R, and the linear movement distance L1 of the push rod is less than or equal to 2R.

[0015] The crank drives the push rod to move linearly, so that the air deflector is pushed out and retracted, and the crank push rod principle is used, which can not only increase the stability of the push rod movement process, but also make the push rod have a large carrying capacity, so that the push rod can drive the air deflector with a large size to move, and the noise in the push rod movement process is small and the working reliability is high; the relationship between the movement distance of the push rod and the distance from the second connecting part to the rotation center of the crank is calculated to ensure the movement distance of the push rod under the premise of reliable movement of the crank driving the push rod.

[0016] In some embodiments, the first connecting part is a sliding groove, and a first position and a second position are formed in the extension direction of the first connecting part, and the second connecting part reciprocates linearly between the first position and the second position to push out or retract the push rod;

[0017] A plane passing through the rotation axis of the crank and parallel to the movement direction of the push rod is a first plane, the distance from the second connecting part to the first plane is D1 when the second connecting part is at the first position, and the distance from the second connecting part to the first plane is D2 when the second connecting part is at the second position;

[0018] The length L2 of the first connecting part is greater than or equal to the distance between the first position and the second position.

[0019] The length of the first connecting part is greater than or equal to the distance between the first position and the second position, so that the second connecting part can reciprocate along the first connecting part between the first position and the second position, thereby ensuring the reliability of the movement of the second connecting part. If the length of the first connecting part is less than the distance between the first position and the second position, the second connecting part cannot move to the first position and / or the second position, but can only move within a certain distance between the first position and the second position.

[0020] In some embodiments, the distance from the second connecting part to the first plane is D2≤R when the second connecting part is at the second position.

[0021] In the technical solution, the second connecting part moves on an arc-shaped track, the maximum distance from the second connecting part to the first plane where the center of the arc-shaped track is R, and therefore, the distance from the second connecting part to the first plane is D2≤R when the second connecting part is at the second position.

[0022] In some embodiments, a line passing through the second connecting part and the rotation center of the crank and a plane of the rotation axis of the crank form a second plane; an included angle is defined between the second plane and the first plane, when the second connecting part is in the first position, the included angle is α, D1=R*sinα, and the length L2 of the first connecting part is greater than or equal to R-R*sinα.

[0023] In the technical solution, when the second connecting part is in the first position, the included angle between the second plane and the first plane is an initial included angle, when the initial included angle is α, the distance D1 of the second connecting part to the first plane is R*sinα, and the length L2 of the first connecting part is greater than or equal to R-R*sinα, so that the length of the first connecting part meets the movement requirement of the second connecting part and the reliability of the movement of the second connecting part is ensured.

[0024] In some embodiments, a plane passing through the rotation axis of the crank and perpendicular to the movement track of the push rod is a third plane; when the second connecting part is in the first position, the distance of the second connecting part to the third plane is R*cosα, and the linear movement distance L1 of the push rod is less than or equal to 2R*cosα.

[0025] In the technical solution, when the initial included angle is α, the distance of the second connecting part to the third plane is R*cosα, and the maximum movement distance of the second connecting part in the movement direction of the push rod during the reciprocating sliding of the second connecting part between the first position and the second position is 2R*cosα, and the movement distance of the push rod is the same as the movement distance of the second connecting part in the movement direction of the push rod, so that the linear movement distance L1 of the push rod is less than or equal to 2R*cosα, and the reliability of the movement of the second connecting part is ensured.

[0026] In some embodiments, when the included angle is α, the linear movement distance L1 of the push rod, the length L2 of the first connecting part and satisfy the relationship: L2≥L1(1-sinα) / 2cosα.

[0027] In some embodiments, the outer diameter of the second connecting part is r1, and the length L2 of the first connecting part is greater than or equal to R-R*sinα+2r1.

[0028] In some embodiments, the angle of the included angle changes synchronously when the crank rotates.

[0029] In some embodiments, a first cavity and a second cavity are defined along the length direction of the casing, the heat exchanger and the heat exchanger fan are arranged in the first cavity, the end of the push rod away from the air deflector is arranged in the second cavity, and a passing part for the push rod to extend out of the casing is arranged on the cavity wall of the second cavity.

[0030] The first cavity and the second cavity are arranged along the length direction of the shell, the first cavity contains the heat exchanger and the heat exchange fan, and the second cavity contains the mechanism box, so that the setting position of the push-out assembly in the shell is constrained and limited.

[0031] In addition, the application further provides a hanging type air conditioner indoor unit, which comprises:

[0032] A shell, a shell air inlet is arranged at the top of the shell, and a shell air outlet is arranged below the front side of the shell;

[0033] A heat exchanger, the heat exchanger is arranged in the shell, and at least part of the windward side of the heat exchanger is arranged to face the shell air inlet;

[0034] A heat exchange fan, the heat exchange fan is arranged in the shell, and the heat exchange fan is located at the leeward side of the heat exchanger;

[0035] An air deflector, the air deflector is rotatably arranged at the shell air outlet; the rotation axis of the air deflector is arranged along the length direction of the shell;

[0036] A push-out assembly, the push-out assembly is used for driving the air deflector to push out in a direction away from the shell air outlet or to retract in a direction close to the shell air outlet; the push-out assembly comprises:

[0037] A push rod, the extension end of the push rod is arranged outside the shell and connected to the air deflector, and the end of the push rod away from the air deflector is arranged in the shell and provided with a first connecting part;

[0038] A crank, the crank is arranged in the shell, a second connecting part is arranged at the outer edge of the crank, the distance from the second connecting part to the rotation center of the crank is R; the second connecting part is slidably connected to the first connecting part and drives the push rod to linearly reciprocate along a first direction; the second connecting part reciprocates linearly along the first connecting part between a first position and a second position;

[0039] A plane passing through the rotation axis of the crank and parallel to the first direction is a first plane;

[0040] A plane passing through the line between the second connecting part and the rotation center of the crank and the rotation axis of the crank is a second plane;

[0041] When the second connecting part is at the first position, the included angle between the second plane and the first plane is α, and the distance D1 from the second connecting part to the first plane is R*sinα;

[0042] When the second connecting part is at the second position, the distance D2 from the second connecting part to the first plane is less than or equal to R;

[0043] The length L2 of the first connecting part is greater than or equal to R-R*sinα.

[0044] The technical scheme utilizes the crank to drive the push rod to move linearly, thereby realizing the pushing out and retraction of the air deflector, utilizes the crank push rod principle, can not only increase the stability of the push rod movement process, but also can make the push rod have greater load carrying capacity, so that the push rod can drive the air deflector with larger size to move, and the noise in the push rod movement process is small and the working reliability is high; the relationship between the length of the first connecting part and the distance from the second connecting part to the rotation center of the crank is calculated, so that the length of the first connecting part is reduced under the premise of ensuring reliable movement of the crank, thereby reducing the size of the push rod in the extension direction of the first connecting part.

[0045] In the above embodiment, the indoor unit of the wall-mounted air conditioner utilizes the crank push rod principle, utilizes the crank to drive the push rod to move linearly, thereby realizing the pushing out and retraction of the air deflector, can not only increase the stability of the push rod movement process, but also can make the push rod have greater load carrying capacity, so that the push rod can drive the air deflector with larger size to move, and the noise in the push rod movement process is small and the working reliability is high; the related parameters of the crank and the push rod are calculated, so that the related sizes of the crank and the push rod are reduced under the premise of meeting the reliable movement of the crank push rod, to facilitate the arrangement of the crank and the push rod. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is a structural schematic diagram of an embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0047] Figure 2 is a structural schematic diagram of an embodiment of the indoor unit of the wall-mounted air conditioner of the present application when the air deflector is not assembled;

[0048] Figure 3 is a structural schematic diagram of the inside of the casing of an embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0049] Figure 4 is a structural schematic diagram of the push-out assembly in an embodiment of the indoor unit of the wall-mounted air conditioner of the present application Figure 1 ;

[0050] Figure 5 is a structural schematic diagram of the push-out assembly in an embodiment of the indoor unit of the wall-mounted air conditioner of the present application Figure 2 ;

[0051] Figure 6 is a structural schematic diagram of the mechanism box in an embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0052] Figure 7 is a structural schematic diagram of an embodiment of the indoor unit of the wall-mounted air conditioner of the present application when the push rod is retracted;

[0053] Figure 8 is a structural schematic diagram of another angle of an embodiment of the indoor unit of the wall-mounted air conditioner of the present application when the push rod is retracted;

[0054] Figure 9 is a structural schematic view of the push rod being pushed out in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0055] Figure 10 is a structural schematic view of the push rod being pushed out in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application; Figure 9 is an enlarged view of structure at A in

[0056] Figure 11 is a structural schematic view of the push rod being pushed out in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0057] Figure 12 is a structural schematic view of the push rod being pushed out in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0058] Figure 13 is a force analysis schematic view of the second connecting portion when the push rod is retracted in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0059] Figure 14 is a force analysis schematic view of the second connecting portion when the push rod is retracted in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0060] Figure 15 is a force analysis schematic view of the second connecting portion when the push rod is retracted in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0061] Figure 16 is a structural schematic view of the second connecting portion in the first position and the push rod being retracted in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0062] Figure 17 is a structural schematic view of the second connecting portion in the second position in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0063] Figure 18 is a structural schematic view of the second connecting portion in the first position and the push rod being retracted in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0064] Figure 19 is a structural schematic view of the first box in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0065] Figure 20 is a structural schematic view of the end of the guide portion being provided with a mounting portion in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0066] Figure 21 is a sectional schematic view of the first box in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0067] Figure 22 is a structural schematic view of the second box in one embodiment of the indoor unit of the wall-mounted air conditioner of the present application;

[0068] Figure 23 is a structural schematic diagram of a push rod in one embodiment of the indoor unit of the hanging air conditioner of the present application;

[0069] Figure 24 is a structural schematic diagram of a limiting piece in one embodiment of the indoor unit of the hanging air conditioner of the present application;

[0070] Figure 25 is a structural schematic diagram of the internal structure of the push rod in one embodiment of the indoor unit of the hanging air conditioner of the present application.

[0071] In the figure,

[0072] 100, a casing; 200, a guide vane; 300, a heat exchange fan; 400, a push rod; 500, a rotary motor; 600, a heat exchanger; 700, a mechanism box; 800, a driving motor; 900, a crank;

[0073] 101, a casing air inlet; 102, a casing air outlet;

[0074] 401, a first connecting part; 402, a passage; 410, a limiting piece; 420, a connecting piece;

[0075] 411, a recess;

[0076] 701, a through-out part;

[0077] 710, a first box; 720, a second box; 730, a rolling piece;

[0078] 711, a guide part; 712, a mounting part; 713, a first ear part; 714, a limiting rib; 715, an avoiding part; 716, a blocking part;

[0079] 721, a limiting part; 722, a second ear part;

[0080] 810, a driving gear;

[0081] 901, a first plane; 902, a second plane; 903, a third plane;

[0082] 910, a second connecting part; 920, a toothed part. DETAILED DESCRIPTION

[0083] In order to make the purpose and the embodiments of the present application more clear, the exemplary embodiments of the present application will be described clearly and completely below in combination with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only some of the embodiments of the present application, but not all the embodiments.

[0084] It should be noted that the brief description of the terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of the application. Unless otherwise specified, these terms should be understood in accordance with their ordinary and general meanings.

[0085] The terms "first", "second", "third" and the like in the specification and claims of this application and the above-described drawings are used to distinguish similar or identical objects or entities, and do not necessarily mean to limit the specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchanged under appropriate circumstances.

[0086] The terms "include" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or device including a series of components does not have to be limited to all components clearly listed, but can include other components not clearly listed or inherent to these products or devices.

[0087] The hanging type air conditioner indoor unit provided by the embodiments of the application can have various implementation forms, for example, it can be a hanging type air conditioner indoor unit with fresh air function, or a hanging type air conditioner indoor unit without fresh air function, etc. Figures 1-3 As a specific embodiment of the hanging type air conditioner indoor unit of the application.

[0088] As shown in Figure 1 The shell 100 is used to form the overall appearance of the air conditioner indoor unit, the shell 100 has a top and a bottom, the top of the shell 100 and the bottom of the shell 100 are opposite two ends, from the top of the shell 100 to the bottom of the shell 100 is the height direction of the shell 100; the left side of the shell 100 and the right side of the shell 100 are opposite two sides, from the left side of the shell 100 to the right side of the shell 100 is the length direction of the shell 100; the front side of the shell 100 and the back side of the shell 100 are opposite two sides, and the direction from the front side of the shell 100 to the back side of the shell 100 is the thickness direction of the shell 100.

[0089] In actual application, the shell 100 is usually arranged at the top of the room or the upper space of the room, wherein the back side of the shell 100 is arranged towards the wall, and the front side of the shell 100 is arranged towards the user.

[0090] The shell 100 is internally defined to form a first cavity, the first cavity extends along the length direction of the shell 100; the shell 100 is formed with a shell air inlet 101, the shell air inlet 101 is arranged at the top of the shell 100, the shell air inlet 101 is in communication with the first cavity, and indoor air enters the first cavity through the shell air inlet 101.

[0091] The shell air inlet 101 extends along the length direction of the shell 100, so that the shell air inlet 101 has a larger size, so that the air conditioner indoor unit can have a larger air inlet amount.

[0092] As shown in Figure 2 , the housing 100 is formed with a housing air outlet 102, which is arranged at the front side of the housing 100 and close to the bottom of the housing 100, i.e. the housing air outlet 102 is located at the front lower side of the housing 100, and the housing air outlet 102 is in communication with the first cavity, and the air in the first cavity is output to the room through the housing air outlet 102.

[0093] The housing air outlet 102 extends along the length direction of the housing 100, so that the housing air outlet 102 has a larger size, thereby increasing the air volume of the air conditioner indoor unit.

[0094] As shown in Figure 3 , the hanging type air conditioner indoor unit comprises a heat exchanger 600 arranged in the first cavity, which is used to exchange heat with the air passing through it to form air conditioning air to meet the cooling or heating needs of the user. The heat exchanger 600 is arranged close to the housing air inlet 101, and at least part of the windward side of the heat exchanger 600 is arranged to face the housing air inlet 101, so that the air entering the first cavity can contact the heat exchanger 600 as soon as possible.

[0095] It should be noted that the air conditioning air can be cold air, hot air, or even normal temperature air.

[0096] As shown in Figure 2 , the hanging type air conditioner indoor unit comprises a heat exchange fan 300 arranged in the first cavity, which is used to introduce indoor air into the first cavity and / or output the air in the first cavity to the room. The axial direction of the heat exchange fan 300 is arranged along the length direction of the housing 100, and the heat exchange fan 300 is located at the leeward side of the heat exchanger 600, and part of the heat exchanger 600 is located above the heat exchange fan 300.

[0097] Through the operation of the heat exchange fan 300, the indoor air is introduced into the first cavity from the housing air inlet 101, and after being exchanged by the heat exchanger 600 to form air conditioning air, the air conditioning air is output to the room through the housing air outlet 102.

[0098] It should be noted that in the hanging type air conditioner indoor unit, the heat exchange fan 300 is usually a cross-flow fan.

[0099] As shown in Figure 1 , the housing air outlet 102 is provided with an air guide plate 200, which is rotatably connected to the housing air outlet 102 to open or close the housing air outlet 102. In addition, the air guide plate 200 can also guide the air output to the room through the housing air outlet 102, or adjust the air outlet angle and air outlet direction of the housing air outlet 102, etc. The rotation axis of the air guide plate 200 is arranged along the length direction of the housing 100.

[0100] AsFigure 2 As shown in

[0101] As shown in Figure 2 and Figure 3 As shown in

[0102] In some embodiments, when the ceiling-mounted air conditioner is running, the air deflector 200 is first pushed out and then rotated; when the ceiling-mounted air conditioner is stopped, the air deflector 200 is first rotated to reset and then retracted, which is a routine technical means in the art and will not be described in detail.

[0103] As shown in Figures 2-5 As shown in

[0104] As shown in Figure 4 As shown in

[0105] As shown in Figure 6 As shown in

[0106] As shown in Figure 6 and Figure 7 As shown in

[0107] In some embodiments, the rolling member 730 is a roller, and when the push rod 400 moves, the roller rolls to reduce the friction between the push rod 400 and the rolling member 730.

[0108] For convenience of description, one end of the push rod 400 arranged in the mechanism box 700 is the connecting end of the push rod 400, and the other end of the push rod 400 arranged outside the mechanism box 700 is the telescopic end of the push rod 400. The connecting end and the telescopic end are arranged at two ends of the push rod 400 along the length direction of the push rod 400.

[0109] In some embodiments, a second cavity is formed inside the casing 100, and the second cavity is distributed along the length direction of the casing 100 and used for accommodating the mechanism box 700. The first cavity and the second cavity are separated from each other to prevent the air in the first cavity after being exchanged by the heat exchanger 600 from entering the second cavity, which not only may affect the working of the push-out assembly, but also may reduce the heat exchange efficiency of the heat exchanger 600.

[0110] It should be noted that the cavity wall of the second cavity is provided with a passing portion in communication with the second cavity, and the passing portion is arranged corresponding to the penetrating portion 701 to make the push rod 400 extend out of the casing 100 from the passing portion.

[0111] In some embodiments, the passing portion is a through port arranged below the front side of the casing 100, and the passing portion and the air outlet 102 of the casing 100 are distributed along the length direction of the casing 100.

[0112] As shown in Figures 7-9 , the push-out assembly comprises a crank 900 arranged in the mechanism box 700 and rotationally connected to the mechanism box 700, and the crank 900 is used for driving the push rod 400 to move linearly along the first direction to push out or retract the deflector 200.

[0113] As shown in Figure 10 and Figure 11 , the connecting end of the push rod 400 is provided with a first connecting portion 401 arranged along the second direction; as shown in Figure 12 , the outer edge of the crank 900 is provided with a second connecting portion 910 connected to the first connecting portion 401 to make the crank 900 connected to the push rod 400, so that the crank 900 drives the push rod 400 to move.

[0114] When the crank 900 rotates, the second connecting portion 910 moves, and the second connecting portion 910 is connected to the first connecting portion 401 arranged in the push rod 400, so that the second connecting portion 910 moves to drive the push rod 400 to move.

[0115] Since the second connecting portion 910 is arranged at the outer edge of the crank 900, when the crank 900 rotates, the second connecting portion 910 moves along an arc curve, as shown in Figure 13 and Figure 14As shown, the movement trajectory of the second connecting portion 910 is on a circle S with the rotation center of the crank 900 as the center and the distance from the second connecting portion 910 to the rotation center of the crank 900 as the radius, and the movement trajectory of the second connecting portion 910 is a part of the circle S.

[0116] Since the second connecting portion 910 moves along the arc-shaped curve and the push rod 400 reciprocates along the straight line, in the present application, the first connecting portion 401 is extended in the second direction, and the second connecting portion 910 is arranged in the first connecting portion 401 and slides along the first connecting portion 401, so as to prevent the movement of the second connecting portion 910 from interfering with the movement of the push rod 400.

[0117] The arc-shaped movement of the second connecting portion 910 is decomposed into a straight line movement in the first direction and a straight line movement in the second direction, wherein the movement of the second connecting portion 910 in the first direction drives the push rod 400 to move linearly in the first direction, and the movement of the second connecting portion 910 in the second direction is the sliding movement of the second connecting portion 910 along the first connecting portion 401.

[0118] It should be noted that the movement distance of the second connecting portion 910 in the first direction is the same as the linear movement distance of the push rod 400 in the first direction, and the movement distance of the second connecting portion 910 in the second direction is the sliding distance of the second connecting portion 910 along the first connecting portion 401.

[0119] As shown in Figure 13 and Figure 14 , the crank 900 applies a force F to the push rod 400 through the second connecting portion 910 to drive the push rod 400 to move, and the direction of the force F is tangent to the arc-shaped trajectory of the second connecting portion 910.

[0120] The force F applied by the crank 900 to the push rod 400 can be decomposed into a first component F1 and a second component F2, wherein the first component F1 is arranged in the first direction, and under the action of the first component F1, the push rod 400 moves linearly in the first direction; the second component F2 is arranged in the second direction, and under the action of the second component F2, the second connecting portion 910 slides along the first connecting portion 401.

[0121] As shown in Figure 15 , the distance from the second connecting portion 910 to the rotation center of the crank 900 is R, and the linear movement distance of the push rod 400 is L1, and the linear movement distance L1 of the push rod 400 and the distance R from the second connecting portion 910 to the rotation center of the crank 900 satisfy the relationship: L1≤2R.

[0122] The maximum movement distance of the second connecting part 910 in the first direction is 2R. If L1>2R, the second connecting part 910 can be separated from the first connecting part 401 during the movement of the push rod 400, which reduces the reliability of the movement of the push rod 400 and cannot realize the retraction of the push rod 400.

[0123] As shown in Figures 16-18 , the first connecting part 401 is formed with a first position and a second position, and the second connecting part 910 reciprocates linearly between the first position and the second position to push out or retract the push rod 400. It should be noted that the first position and the second position correspond to two end points of the arc trajectory of the second connecting part 910.

[0124] A plane passing through the rotation axis of the crank 900 and parallel to the first direction is a first plane 901, and one diameter of the crank 900 is located on the first plane 901. It should be noted that the first plane 901 is constant, and the position of the first plane 901 does not change with the rotation of the crank 900.

[0125] As shown in Figure 16 , when the second connecting part 910 is at the first position, as the crank 900 rotates, the second connecting part 910 moves in the second direction away from the first plane 901; as shown in Figure 17 , when the second connecting part 910 is at the second position, as the crank 900 rotates, the second connecting part 910 moves in the second direction towards the first plane 901. Therefore, on the arc trajectory of the second connecting part 910, when the second connecting part 910 is at the first position, the second connecting part 910 is closest to the first plane 901; when the second connecting part 910 is at the second position, the second connecting part 910 is farthest from the first plane 901.

[0126] As shown in Figure 16 , when the second connecting part 910 is at the first position, the distance between the second connecting part 910 and the first plane 901 is D1; as shown in Figure 17 , when the second connecting part 910 is at the second position, the distance between the second connecting part 910 and the first plane 901 is D2, and D2 and D1 satisfy the relationship D2>D1.

[0127] It should be noted that on a circle S with the center of rotation of the crank 900 as the center and the distance R from the center of rotation of the crank 900 to the second connecting part 910 as the radius, the maximum distance between the second connecting part 910 and the first plane 901 is the distance R from the center of rotation of the crank 900 to the second connecting part 910. Therefore, on the trajectory of the second connecting part 910, the distance D2 between the second connecting part 910 and the first plane 901 is less than or equal to R.

[0128] The length of the first connecting portion 401 is L2, and L2, D1 and D2 satisfy the relationship L2≥D2-D1, so as to ensure the reliability of the sliding of the second connecting portion 910. If L2<D2-D1, the edge of the first connecting portion 401 will block the second connecting portion 910, so that the second connecting portion 910 cannot move to the second position or the first position.

[0129] It should be noted that, since the second connecting portion 910 moves along the arc-shaped track, according to the characteristics of the arc-shaped track, the first position and the second position do not necessarily correspond to the pushing out and retraction of the push rod 400, that is, when the second connecting portion 910 is in the second position, the push rod 400 does not necessarily be in the state of pushing out or retraction, which is the common technical knowledge in the art and will not be described here.

[0130] In some embodiments of the present application, as shown in Figure 16 , when the second connecting portion 910 is in the first position, the push rod 400 is retracted; as shown in Figure 17 , when the second connecting portion 910 is in the second position, the push rod 400 moves to an intermediate position of the pushing out movement or the retraction movement; when the push rod 400 is pushed out, the second connecting portion 910 is in the first position or a position between the first position and the second position.

[0131] In other words, when the push rod 400 is pushed out, the second connecting portion 910 first slides from the first position to the second position, and then slides from the second position to the first position, so as to push out the push rod 400 in the first direction. When the push rod 400 is retracted, the second connecting portion 910 first slides from the first position to the second position, and then slides from the second position to the first position, so as to retract the push rod 400.

[0132] That is, in the pushing out or retraction movement of the push rod 400, the second connecting portion 910 moves from the first position to the second position, and then moves from the second position to the first position.

[0133] By reciprocating the second connecting portion 910 between the first position and the second position, the pushing out and retraction movements of the push rod 400 are realized. In the case of the same movement distance of the push rod 400, such a design can reduce the activity range of the second connecting portion 910, that is, reduce the length of the first connecting portion 401, so as to reduce the occupied space of the first connecting portion 401 and facilitate the arrangement of the pushing out assembly.

[0134] In the present embodiment, as shown in Figure 16 and Figure 18 , when the second connecting portion 910 is in the first position, the push rod 400 is retracted or pushed out; as shown in Figure 17 , when the second connecting portion 910 is in the second position, the push rod 400 moves to an intermediate position of the pushing out movement or the retraction movement.

[0135] The linear motion distance L1 of the push rod 400, the distance R from the second connecting portion 910 to the rotation center of the crank 900, and the rotation angle θ of the crank 900 satisfy the relationship L1=R-R·cos θ.

[0136] The distance d from the second connecting portion 910 to the first position, the distance R from the second connecting portion 910 to the rotation center of the crank 900, and the rotation angle θ of the crank 900 satisfy the relationship d=R·sin θ.

[0137] It should be noted that the distance d from the second connecting portion 910 to the first position is not completely equal to the sliding distance of the second connecting portion 910. During the movement of the second connecting portion 910 from the first position to the second position, the distance d from the second connecting portion 910 to the first position is equal to the sliding distance of the second connecting portion 910. However, during the movement of the second connecting portion 910 from the second position to the first position, the distance d from the second connecting portion 910 to the first position is less than the sliding distance of the second connecting portion 910. At this time, the sliding distance of the second connecting portion 910 is equal to the sum of the length from the first position to the second position and the distance d from the second connecting portion 910 to the first position. This is because the second connecting portion 910 can only move from the first position to the second position before moving from the second position to the first position.

[0138] It should also be noted that the angle of the included angle A is γ, and the rotation angle θ of the crank 900 satisfies the relationship θ=γ-α.

[0139] As shown in FIG. 4, the second connecting portion 910 is located on the first plane 901 when the second connecting portion 910 is at the first position. Figure 15 It should be noted that the second connecting portion 910 is located on the second plane 902 when the second connecting portion 910 is at the second position.

[0140] The second plane 902 and the first plane 901 define the included angle A therebetween, and the angle of the included angle A is variable. When the crank 900 rotates, the angle of the included angle A changes synchronously, and the change amount of the included angle A is equal to the rotation angle θ of the crank 900.

[0141] When the second connecting portion 910 is at the first position, the angle of the included angle A is an initial angle. When the second connecting portion 910 is at the first position, the angle of the included angle A is α, where α can be 0° or other degrees.

[0142] In some embodiments, as shown in FIG. 4, when the second connecting portion 910 is at the second position, the included angle A is 90°. Figure 17 In some embodiments, as shown in FIG. 4, when the second connecting portion 910 is at the second position, the included angle A is 90°.

[0143] In some embodiments, such as Figure 16 and Figure 18 As shown, when the second connecting part 910 is in the first position, the angle A varies depending on the state of the push rod 400. The angle A is greater when the push rod 400 is pushed out than when the push rod 400 is retracted.

[0144] It should be noted that during the push-rod 400 push-out process, when the included angle A is less than or equal to 90°, the second connecting part 910 moves from the first position to the second position; when the included angle A is greater than 90°, the second connecting part 910 moves from the second position to the first position.

[0145] During the retraction of push rod 400, when the included angle A is greater than or equal to 90°, the second connecting part 910 moves from the first position to the second position; when the included angle A is less than 90°, the second connecting part 910 moves from the second position to the first position.

[0146] When the second connecting part 910 is in the first position, the distance D1 from the second connecting part 910 to the first plane 901 is R·sinα. Therefore, it can be known that the length L2 of the first connecting part 401 is ≥ RR·sinα.

[0147] like Figure 16 As shown, the plane passing through the rotation axis of crank 900 and perpendicular to the trajectory of push rod 400 is the third plane 903, and one of the diameters of crank 900 lies on the third plane 903. It should be noted that the third plane 903 is constant, and its position does not change with the rotation of crank 900.

[0148] When the second connecting part 910 is in the first position, the distance s1 from the second connecting part 910 to the third plane 903 is R·sinα, and the linear motion distance L1 of the push rod 400 is ≤2R·cosα. This is because: when the second connecting part 910 is in the first position, the distance from the second connecting part 910 to the third plane 903 is the largest. During the movement of the second connecting part 910 from the first position to the second position, the movement distance of the second connecting part 910 along the first direction is less than or equal to R·cosα. Similarly, during the movement of the second connecting part 910 from the second position to the first position, the movement distance of the second connecting part 910 along the first direction is less than or equal to R·cosα. Therefore, the linear motion distance L1 of the push rod 400 is ≤2R·cosα.

[0149] Given that the linear motion distance L1 of push rod 400 and the initial angle α of included angle A are known, the distance R from the second connecting part 910 to the rotation center of crank 900 can be calculated, where R≤L1 / 2cosα.

[0150] According to the foregoing, the length L2 of the first connecting portion 401 is greater than or equal to R-R*sin a, and thus the linear motion distance L1 of the push rod 400, the length L2 of the first connecting portion 401, and the following relationship is satisfied: L2≥L1(1-sin a) / 2cos a.

[0151] According to the foregoing, the length L2 of the first connecting portion 401 is greater than or equal to R-R*sin a, and thus the linear motion distance L1 of the push rod 400, the length L2 of the first connecting portion 401, and the following relationship is satisfied: L2≥L1(1-sin a) / 2cos a.

[0152] In some embodiments, the length L2 of the first connecting portion 401 is calculated according to the linear motion distance L1 of the push rod 400 and the included angle A, so that the length of the first connecting portion 401 is within a suitable range under the premise of ensuring the reliability of the motion of the push rod 400, so as to reduce the occupied space of the push-out assembly.

[0153] In some embodiments, the outer diameter of the second connecting portion 910 is r1, and the length of the first connecting portion 401 is greater than or equal to R-R*cos a+2r1, so as to ensure that the second connecting portion 910 can reciprocate linearly between the first position and the second position when sliding in the first connecting portion 401.

[0154] As shown in Figure 4 and Figure 5 , the push-out assembly comprises a driving motor 800 for driving the crank 900 to rotate; the driving motor 800 is mounted in the mechanism box 700.

[0155] In some embodiments, the driving motor 800 is arranged outside the mechanism box 700, and a motor shaft of the driving motor 800 extends into the mechanism box 700 and is connected with the crank 900 to drive the crank 900 to rotate.

[0156] In another embodiment, as shown in Figure 12 , a driving gear 810 is connected with the motor shaft of the driving motor 800, and the driving gear 810 is arranged in the mechanism box 700; the outer edge of the crank 900 is provided with a tooth portion 920, and the tooth portion 920 is engaged with the driving gear 810. The driving motor 800 drives the crank 900 to rotate through the driving gear 810, so that the driving motor 800 can have greater driving force.

[0157] The working principle of the push-out assembly is as follows: the driving motor 800 drives the crank 900 to rotate through the driving gear 810, the second connecting portion 910 rotates synchronously with the crank 900, the second connecting portion 910 slides along the first connecting portion 401, and at the same time, the second connecting portion 910 drives the push rod 400 to move linearly in the first direction, so as to retract the air deflector 200 towards the air outlet 102 of the casing or push out the air deflector 200 away from the air outlet 102 of the casing.

[0158] Since the second connecting part 910 moves along an arc-shaped track, in order to ensure that the push rod 400 moves linearly along the first direction, as shown in Figure 8 and Figure 19 illustrated, the present application is provided with a guide part 711 on the mechanism box 700, the guide part 711 extends along the first direction, the connecting end of the push rod 400 is connected with a limiting part 410, the limiting part 410 is arranged in the guide part 711 and slides along the guide part 711, so as to guide the movement of the push rod 400 and limit the movement track of the push rod 400, thereby ensuring that the push rod 400 moves linearly along the first direction reliably.

[0159] As shown in Figure 19 , the length of the guide part 711 is H1, and the movement distance of the push rod 400 is L1, and L1 and H1 satisfy the relationship: H1≥L1.

[0160] If H1<L1, the movement distance of the limiting part 410 is H1, and the limiting part 410 is connected to the push rod 400, when the limiting part 410 cannot continue to move to the end of the guide part 711, the push rod 400 cannot continue to move under the action of the limiting part 410, so that the movement distance of the push rod 400 is H1, which reduces the movement distance of the push rod 400.

[0161] When the crank 900 rotates, the push rod 400 will have a tendency to move along the second direction under the action of the second component force F2, in the present application, the guide part 711 exerts a pulling force on the limiting part 410 which is the same in size and opposite in direction to the second component force F2, so as to balance the force on the push rod 400 in the second direction, and make the push rod 400 move linearly and reciprocally, so as to push out or retract the deflector 200.

[0162] Specifically, as shown in Figure 21 , the inner wall of the guide part 711 is provided with a limiting rib 714 which extends along the extension direction of the guide part 711; as shown in Figure 24 , the limiting part 410 is provided with a recess 411 which is recessed in the peripheral wall of the limiting part 410 along the circumferential direction of the limiting part 410, and the limiting rib 714 is arranged in the recess 411, so as to prevent the limiting part 410 from disengaging from the guide part 711, thereby making the guide part 711 exert a force on the push rod 400 along the second direction, and ensuring that the push rod 400 is balanced in force in the second direction.

[0163] It should be noted that since the limiting rib 714 is arranged in the recess 411, the guide part 711 can also limit and constrain the axial direction of the limiting part 410 through the limiting rib 714, thereby limiting and constraining the axial direction of the push rod 400 through the limiting part 410, so as to prevent the push rod 400 from moving in the axial direction of the limiting part 410.

[0164] The guide portions 711 are provided in two, and the two guide portions 711 are provided on both sides of the movement track of the push rod 400; the limiting pieces 410 are connected to one end of the push rod 400 arranged in the mechanism box 700, and the limiting pieces 410 are also provided in two, and the limiting pieces 410 are arranged in the guide portions 711 one by one to guide and limit the linear movement of the push rod 400.

[0165] By providing two guide portions 711, the limiting pieces 410 are also provided in two, so that the push rod 400 slides relative to the mechanism box 700 through the two limiting pieces 410, so that the push rod 400 contacts and slides relative to the mechanism box 700 in the form of a line, thereby increasing the reliability and stability of the sliding of the push rod 400 relative to the mechanism box 700.

[0166] As shown in Figure 16 , one limiting piece 410 can be regarded as point E1, and the other limiting piece 410 can be regarded as point E2, and points E1 and E2 jointly define a projection point E3, and points E1, E2 and E3 can be connected to form a triangular structure to ensure the stability of the movement of the push rod 400.

[0167] It should be noted that the point E3 is the projection of the point E1 in the second direction, and the point E3 is also the projection of the point E2 in the first direction, and the point E3 is located on the movement track of the push rod 400.

[0168] The push rod 400 contacts the guide portion 711 in the form of a line in the first direction or in the second direction, thereby ensuring the smoothness of the movement of the push rod 400.

[0169] The distance from the two limiting pieces 410 to the end of the push rod 400 arranged in the mechanism box 700 is different, so as to increase the stability and reliability of the sliding process of the push rod 400 relative to the mechanism box 700.

[0170] The limiting piece 410 close to the crank 900 is arranged closer to the end of the push rod 400 arranged in the mechanism box 700, so as to increase the stability and reliability of the sliding process of the push rod 400 relative to the mechanism box 700.

[0171] The two limiting pieces 410 are arranged on both sides of the extension direction of the first connecting portion 401, so as to increase the stability and reliability of the sliding process of the push rod 400 relative to the mechanism box 700.

[0172] The ends of the two guide portions 711 are distributed staggered along the movement track of the push rod 400, so as to increase the stability and reliability of the sliding process of the push rod 400 relative to the mechanism box 700.

[0173] As shown in Figure 21As shown, the inner wall of the guide portion 711 facing the push rod 400 is provided with a relief portion 715. The relief portion 715 extends along the setting direction of the guide portion 711 and is used to reduce the contact area between the limiting member 410 and the guide portion 711.

[0174] In some embodiments, the mechanism box 700 is manufactured using an injection molding process. The limiting rib 714 located on the inner wall of the guide portion 711 may make it inconvenient for the mold used to form the limiting rib 714 to be demolded. By providing a clearance portion 715 on the inner wall of the guide portion 711 on the side facing the push rod 400, the mold used to form the limiting rib 714 can be demolded from the clearance portion 715.

[0175] In some embodiments, the guide portion 711 is provided with lubricating oil or grease to reduce the frictional force generated during the sliding of the limiting member 410 along the guide portion 711.

[0176] In some embodiments, such as Figure 21 As shown, in order to prevent lubricating oil or grease from dripping from the relief part 715, a blocking part 716 is provided on the inner wall of the guide part 711 facing the push rod 400 to block the lubricating oil or grease, thereby preventing the lubricating oil or grease from dripping.

[0177] In some embodiments, the clearance portion 715 is an opening provided on the inner wall of the guide portion 711 facing the push rod 400, and the blocking portion 716 is the inner wall of the guide portion 711 facing the push rod 400. By designing the mechanism box 700 as a semi-hollow structure, the contact area between the limiting member 410 and the guide portion 711 can be reduced on the one hand, and the dripping of lubricating oil or grease can be prevented on the other hand.

[0178] like Figure 20 As shown, the mechanism box 700 is provided with a mounting part 712, which is located on the extension path of the guide part 711 and communicates with the guide part 711. The mounting part 712 is located at the end of the guide part 711, and the limiting member 410 is located in the guide part 711 through the mounting part 712.

[0179] The inner walls of the guide portion 711 on both sides are provided with limiting ribs 714. The distance between the two limiting ribs 714 is greater than or equal to the outer diameter of the recess 411, so that the limiting ribs 714 can be provided inside the recess 411. The distance between the two limiting ribs 714 is less than or equal to the outer diameter of the limiting member 410, so that the limiting ribs 714 can constrain the limiting member 410 and prevent the limiting member 410 from detaching from the guide portion 711.

[0180] The inner diameter of the mounting part 712 is greater than or equal to the outer diameter of the limiting member 410. The mounting part 712 is connected to the guide part 711. The inner diameter of the mounting part 712 is greater than the distance between the two limiting ribs 714, so that the limiting member 410 can be installed from the mounting part 712 into the guide part 711.

[0181] The installation portion 712 has a dimension H2 along the movement track of the push rod 400, and the limiting member 410 has an outer diameter r2. The dimension H2 and the outer diameter r2 satisfy a relationship H2≥2r2, so that the limiting member 410 can be arranged in the installation portion 712 and thus arranged in the guide portion 711 through the installation portion 712. If H2<2r2, the limiting member 410 cannot be arranged in the installation portion 712 and thus cannot be arranged in the guide portion 711 through the installation portion 712.

[0182] It should be noted that when calculating the length H1 of the guide portion 711, the dimension H2 of the installation portion 712 should not be included, which is a common technical knowledge in the art and will not be described here.

[0183] When the limiting member 410 arranged in the guide portion 711 moves to the installation portion 712, the limiting member 410 is easy to be separated from the guide portion 711, which reduces the reliability of the movement of the push rod 400. Therefore, a limiting portion 721 is arranged in the mechanism box 700, which is located in front of the installation portion 712 along the movement direction of the push rod 400, so as to prevent the limiting member 410 arranged in the guide portion 711 from moving to the installation portion 712.

[0184] It should be noted that when the part of the movement track of the push rod 400 located in front of the limiting portion 721 along the movement direction of the push rod 400 moves, the limiting member 410 will not move to the installation portion 712, so as to ensure the reliability of the movement of the push rod 400.

[0185] Although the limiting portion 721 prevents the limiting member 410 from moving to the installation portion 712, which can increase the reliability of the movement of the push rod 400, the limiting portion 721 also causes the limiting member 410 to be unable to be detached from the installation portion 712 and the limiting member 410 to be unable to move to the front of the limiting portion 721 after being arranged in the guide portion 711 from the installation portion 712.

[0186] Therefore, in some embodiments of the present application, the mechanism box 700 is designed as a split structure, and the installation portion 712 and the limiting portion 721 are arranged on different side walls, so as to ensure the limiting effect of the limiting portion 721 on the limiting member 410 and facilitate the installation of the push rod 400 in the mechanism box 700.

[0187] Specifically, as shown in Figure 19 and Figure 21 the mechanism box 700 includes a first box 710, and the guide portion 711 and the installation portion 712 are arranged in the first box 710.

[0188] As shown in Figure 22As shown, the mechanism box 700 comprises a second box 720 which is assembled with the first box 710; the second box 720 is provided with a limiting part 721; the limiting part 721 is located on the movement track of the push rod 400 and is used for limiting the movement position of the push rod 400.

[0189] As shown in the figure, Figure 19 the first box 710 is provided with a first lug 713 which is located on the outer edge of the first box 710 and is located outside the mechanism box 700; the first lug 713 is connected with the second box 720 through a fastener such as a bolt or a screw.

[0190] As shown in the figure, Figure 22 the second box 720 is provided with a second lug 722 which is located on the outer edge of the second box 720 and is located outside the mechanism box 700; the second lug 722 is correspondingly arranged with the first lug 713 and is connected with the first lug 713 through a fastener such as a bolt or a screw, so as to realize the assembly of the second box 720 and the first box 710.

[0191] After the assembly of the second box 720 and the first box 710, the limiting part 721 is located in front of the mounting part 712 along the movement track of the push rod 400, so as to prevent the limiting part 410 arranged in the guide part 711 from moving to the mounting part 712.

[0192] As shown in the figure, Figure 23 the connecting end of the push rod 400 arranged in the mechanism box 700 is connected with a connecting part 420; the width size of the connecting part 420 is greater than the width size of the push rod 400; the connecting part 420 is abutted with the limiting part 721, so as to prevent the push rod 400 from continuing to move.

[0193] It should be noted that the movement track of the push rod 400 is also the movement track of the limiting part 410.

[0194] In this embodiment, the mounting part 712 is arranged close to the position where the push rod 400 passes out of the mechanism box 700; the mounting part 712 is located behind the limiting part 721 along the movement direction of the push rod 400 when it is pushed out; the mounting part 712 is located in front of the limiting part 721 along the movement track of the push rod 400 when it is retracted.

[0195] The mounting steps of the push rod 400 are as follows: first, connect the limiting part 410 with the push rod 400, then arrange the limiting part 410 in the guide part 711 from the mounting part 712, so that the limiting part 714 is arranged in the recess 411, so as to realize the assembly of the push rod 400 and the first box 710; then move the limiting part 410 along the guide part 711 to the third position away from the mounting part 712, so that the second box 720 is assembled with the first box 710, so as to realize the assembly of the push rod 400, the first box 710 and the second box 720.

[0196] It should be noted that the third position is located behind the limiting portion 721 along the movement direction of the push rod 400.

[0197] In some embodiments of the present application, as shown in Figure 2 The rotating motor 500 is installed at one end of the push rod 400 outside the casing 100.

[0198] As shown in Figure 25 The push rod 400 is internally defined with a channel 402, and the rotating motor 500 is arranged in the channel 402. The motor shaft of the rotating motor 500 is connected with the air deflector 200 through a side wall of one side channel 402, so as to drive the air deflector 200 to rotate.

[0199] The channel 402 extends along the length direction of the push rod 400, and the motor wire of the rotating motor 500 is routed from the channel 402, which not only hides the motor wire of the rotating motor 500, but also protects the motor wire.

[0200] In some embodiments, the push-out assembly is configured as two, and the two push-out assemblies are arranged at both ends of the length direction of the air deflector 200, so as to make the air deflector 200 bear force evenly and increase the stability of the push-out and retraction movement of the air deflector 200. The two push-out assemblies work synchronously to ensure the reliability of the movement of the air deflector 200.

[0201] The above hanging type air conditioner indoor unit drives the crank 900 to rotate by using the driving motor 800, so that the crank 900 drives the push rod 400 to move linearly, thereby realizing the push-out and retraction of the air deflector 200. By using the movement principle of the crank push rod movement mechanism, not only the stability of the movement process of the push rod 400 can be increased, but also the push rod 400 has a large carrying capacity, so that the push rod 400 can drive the air deflector 200 with a larger size to move, and the noise in the movement process of the push rod 400 is small and the working reliability is high.

[0202] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0203] For the sake of explanation, the foregoing descriptions have been presented in terms of specific embodiments. However, it is to be appreciated that specific embodiments described herein are not intended to limit the scope of the present application, which is defined with reference to the following claims. Various modifications and changes can be made thereto by those skilled in the art which fall within the scope of the present application as defined by the following claims. The embodiments were chosen and described in order to explain the principles of the application and the practical application and to enable others skilled in the art to understand for implementing various embodiments and with various modifications as are suited to the particular use contemplated.

Claims

1. A wall-mounted air conditioner indoor unit, characterized in that, include: The housing has an air inlet on the top and an air outlet on the lower front side. A heat exchanger is disposed inside the casing, with at least a portion of the air-facing side of the heat exchanger facing the air inlet of the casing; A heat exchange fan is provided inside the housing and is located on the leeward side of the heat exchanger. An air guide plate is rotatably disposed at the air outlet of the housing; the rotation axis of the air guide plate is arranged along the length direction of the housing. An ejection assembly is used to drive the air guide plate to extend away from the air outlet of the housing or retract towards the air outlet of the housing; the ejection assembly includes: A push rod, one end of which is located inside the housing and the other end of which is located outside the housing; the end of the push rod located outside the housing is connected to the air guide plate; the end of the push rod located inside the housing is provided with a first connecting part; A crank is disposed within the housing. A second connecting portion is provided at the outer edge of the crank. The second connecting portion is disposed within the first connecting portion and can slide along the first connecting portion. When the crank rotates, the second connecting portion slides relative to the first connecting portion and drives the push rod to move linearly. The distance from the second connecting part to the rotation center of the crank is R, and the linear motion distance L1 of the push rod is ≤2R.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The first connecting part is a slide groove, and a first position and a second position are formed in the extending direction of the first connecting part. The second connecting part reciprocates linearly between the first position and the second position to push out or retract the push rod. The plane passing through the crank rotation axis and parallel to the push rod movement direction is the first plane. When the second connecting part is in the first position, the distance from the second connecting part to the first plane is D1; ​​when the second connecting part is in the second position, the distance from the second connecting part to the first plane is D2. The length L2 of the first connecting part is greater than or equal to D2 - D1.

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, When the second connecting part is in the second position, the distance D2 from the second connecting part to the first plane is ≤R.

4. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, The plane passing through the line connecting the second connecting part and the rotation center of the crank and the rotation axis of the crank is the second plane; the second plane and the first plane define an included angle, and when the second connecting part is in the first position, the angle of the included angle is α, D1=R·sinα, and the length L2 of the first connecting part is ≥RR·sinα.

5. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that, The plane passing through the crank rotation axis and perpendicular to the push rod's trajectory is the third plane; when the second connecting part is in the first position, the distance from the second connecting part to the third plane is R·cosα, and the linear motion distance L1 of the push rod is ≤2R·cosα.

6. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that, When the included angle is α, the linear motion distance L1 of the push rod, the length L2 of the first connecting part, and the relationship satisfy the formula: L2≥L1(1-sinα) / 2cosα.

7. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The outer diameter of the second connecting part is r1, and the length of the first connecting part is L2≥RR·sinα+2r1.

8. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that, As the crank rotates, the included angle changes synchronously.

9. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The housing is defined by a first cavity and a second cavity along its length. The heat exchanger and the heat exchange fan are located in the first cavity. The end of the push rod away from the air guide plate is located in the second cavity. The cavity wall of the second cavity is provided with a passage for the push rod to extend out of the housing.

10. A wall-mounted air conditioner indoor unit, characterized in that, include: The housing has an air inlet on the top and an air outlet on the lower front side. A heat exchanger is disposed inside the casing, with at least a portion of the air-facing side of the heat exchanger facing the air inlet of the casing; A heat exchange fan is provided inside the housing and is located on the leeward side of the heat exchanger. An air guide plate is rotatably disposed at the air outlet of the housing; the rotation axis of the air guide plate is arranged along the length direction of the housing. An ejection assembly is used to drive the air guide plate to extend away from the air outlet of the housing or retract towards the air outlet of the housing; the ejection assembly includes: A push rod, wherein the telescopic end of the push rod is located outside the housing and connected to the air guide plate, and the end of the push rod away from the air guide plate is located inside the housing and is provided with a first connecting part; A crank is disposed inside the housing. A second connecting portion is provided at the outer edge of the crank. The distance from the second connecting portion to the rotation center of the crank is R. The second connecting portion is slidably connected to the first connecting portion and drives the push rod to reciprocate linearly along a first direction. The second connecting portion reciprocates linearly between a first position and a second position along the first connecting portion. The plane passing through the crank rotation axis and parallel to the first direction is the first plane; The plane passing through the line connecting the second connecting part and the crank rotation center and the crank rotation axis is the second plane; When the second connecting part is in the first position, the angle formed between the second plane and the first plane is α, and the distance from the second connecting part to the first plane is D1 = R·sinα; When the second connecting part is in the second position, the distance D2 from the second connecting part to the first plane is ≤ R; The length L2 of the first connecting part is greater than or equal to RR·sinα.

Images